CN102883341A - Measuring method of channel information and relevant device - Google Patents

Abstract

Translated fromChinese

本发明实施例公开了信道信息的测量方法和相关装置，使得UE能在附加载波上得到准确的测量参数，并尽量减小附加载波上的导频开销。本发明实施例方法包括：用户设备获取小区特定参考信号CRS的配置信息；根据所述CRS的配置信息确定接收所述CRS的特定子帧和特定频带；在所述特定子帧和所述特定频带上接收基站发送的CRS；根据所述CRS进行信道信息的测量。此外，本发明还提供了实现该方法的相关装置。

The embodiment of the present invention discloses a channel information measurement method and a related device, so that the UE can obtain accurate measurement parameters on the additional carrier and minimize the pilot overhead on the additional carrier. The method in the embodiment of the present invention includes: the user equipment obtains configuration information of a cell-specific reference signal CRS; determines a specific subframe and a specific frequency band for receiving the CRS according to the configuration information of the CRS; Receive the CRS sent by the base station; measure the channel information according to the CRS. In addition, the present invention also provides related devices for realizing the method.

Description

The method of measurement of channel information and relevant apparatus

Technical field

The present invention relates to the communications field, relate in particular to method of measurement and the relevant apparatus of channel information.

Background technology

In wireless communication system, because the mobility of subscriber equipment (UE, User equipment) and the factors such as multipath transmisstion of wireless signal cause the channel status between base station and the UE to change along with the variation of the factors such as time, frequency and UE position.For example at Long Term Evolution (LTE, Long term evolution) or advanced Long Term Evolution (LTE-A, LTE-Advanced) in the system, for the efficiency of transmission that improves system and the service quality that improves UE, UE need measure and to the multiple measurement parameter of base station feedback, for example: in order to support dynamic dispatching, descending multiple-input and multiple-output (MIMO) transmission technology, UE need measure and to base station reporting status information of channel (CSI, Channel State Information); Switch in order to support cell reselection and residential quarter, UE need measure and report to the base station Reference Signal Received Power (RSRP, Reference Signal Received Power) and Reference Signal Received Quality (RSRQ, Reference Signal Received Quality); In order to support uplink power control, the UE physical layer need be measured and report RSRP to the UE high level, after high level is done filtering to the RSRP that reports, physical layer utilizes filtered RSRP to needed path loss (PL in the uplink power control formula, Path Loss) measure, wherein PL refers to by the reception signal of communication environments introducing and the energy loss between the original transmitted signal.

In LTE Rel-10 system, for satisfy International Telecommunications Union for the 4th generation the communication technology peak data rate require to have introduced carrier aggregation technology, also claim spectrum aggregating (Spectrum Aggregation) technology or bandwidth expansion (Bandwidth Extension) technology.In the carrier aggregation, the frequency spectrum of two or more member carriers (Component Carrier) is grouped together in together to obtain wider transmission bandwidth.LTE Rel-8/9 subscriber equipment can only access one of them member carrier and carry out data transmit-receive, carries out data transmit-receive and the LTERel-10 subscriber equipment can access a plurality of member carriers simultaneously according to its ability and business demand.Each member carrier in the LTE Rel-10 system is the backward compatibility carrier wave, can independently exist.In order to improve the availability of frequency spectrum, in LTE Rel-11, introduce additional carrier, additional carrier can not be as independently carrier wave existence, and it depends on other can self-existent backward compatibility carrier wave.Additional carrier can comprise two classes, and a class can be described as expansion carrier wave (Extension carrier), the another kind of carrier wave fragment (Carrier Segment, or be called carrier wave cut apart) that can be described as.The expansion carrier wave is necessary for a some in the carrier set, and in this carrier set a backward compatibility carrier wave will be arranged at least, and the carrier wave that the expansion carrier wave depends on it can continuously also can be discontinuous.The carrier wave fragment is the continuous bandwidth expansion of a backward compatibility carrier wave, so the carrier wave that the carrier wave fragment depends on it is continuous.Need to prove, also can directly additional carrier be called the expansion carrier wave.How to carry out the measurements such as CSI, RSRP, PL and RSRQ at additional carrier is the problem that needs solve.

The multiple measurement parameter that UE need feed back (as: CSI, RSRP, PL and RSRQ) need to just can obtain in conjunction with channel quality and/or interference noise.In the prior art, UE can be based on the cell special reference (CRS of base station transmission, Cell-specific reference signal), calculate channel quality and interference noise, and then the measured values such as acquisition (CSI, Channel State Information), RSRP, RSRQ and PL.

In the LTE Rel-8/9/10 system, the density of CRS on time domain and frequency domain is all larger: each descending sub frame all has CRS to send on the time domain; On the frequency domain, to antenna opening 0 and antenna opening 1, each Resource Block RB (resource block) has 4 Resource Unit (RE, resource element) sends CRS, to antenna opening 2 and antenna opening 3, each RB has 2 Resource Block (RE) to send CRS, thereby based on CRS channel quality and interference noise is estimated to obtain more accurately measurement result.Corresponding time slot on the Resource Block RB time domain, corresponding 180KHz frequency domain bandwidth on the frequency domain.But CRS all sends at each descending sub frame on the time domain, and CRS sends in the whole system bandwidth on the frequency domain, and CRS will send on all antenna opening corresponding to system on the spatial domain.Introduce additional carrier in the LTE Rel-11 system, additional carrier is non-backward compatible carrier waves, particular design can be arranged, if carry out the measurement of channel information and on additional carrier, also send CRS by mechanism the same in the LTE Rel-8/9/10 system, the expense that can cause CRS to take is very large, even and at the descending sub frame that does not have the informational needs transmission, the base station also will send CRS, so that the base station is in operating state always, be unfavorable for saving energy.

Summary of the invention

The embodiment of the invention provides method of measurement and the relevant apparatus of channel information, to reduce pilot-frequency expense as far as possible.

The method of measurement of a kind of channel information provided by the invention comprises: subscriber equipment obtains the configuration information of cell specific reference signal CRS; Subscriber equipment determines to receive specific sub-frame and the special frequency band of described CRS according to the configuration information of described CRS; Subscriber equipment receives the CRS that the base station sends in described specific sub-frame and described special frequency band; Subscriber equipment carries out the measurement of channel information according to described CRS.

The method of measurement of another kind of channel information provided by the invention comprises: specific sub-frame and the special frequency band of described CRS determined to send in the base station according to the configuration information of CRS; The base station sends CRS to subscriber equipment on described specific sub-frame and described special frequency band, so that described subscriber equipment is measured according to described CRS.

The method of measurement of another channel information provided by the invention comprises: subscriber equipment receives the configuration information of the channel state information reference signals CSI-RS of base station transmission, and described CSI-RS comprises: a CSI-RS and the 2nd CSI-RS; Subscriber equipment determines to receive the specific sub-frame of a described CSI-RS and the 2nd CSI-RS according to the configuration information of described CSI-RS; Subscriber equipment receives the CSI-RS that the base station sends at specific sub-frame and the Whole frequency band of a CSI-RS, and subscriber equipment receives the 2nd CSI-RS that the base station sends in the specific sub-frame of the 2nd CSI-RS and specific sub-frame and the special frequency band of Whole frequency band or the 2nd CSI-RS; Subscriber equipment carries out the measurement of channel information according to a described CSI-RS and/or described the 2nd CSI-RS.

The method of measurement of another channel information provided by the invention comprises: the base station is to the configuration information of subscriber equipment transmission CSI-RS, and described CSI-RS comprises: a CSI-RS and the 2nd CSI-RS; The specific sub-frame of a described CSI-RS and the 2nd CSI-RS is determined in the base station according to the configuration information of described CSI-RS; The base station sends a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band, the base station sends the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band, so that subscriber equipment carries out the measurement of channel information according to a described CSI-RS and/or the 2nd CSI-RS.

A kind of subscriber equipment provided by the invention comprises: acquiring unit, for the configuration information that obtains cell specific reference signal CRS; Determining unit is used for specific sub-frame and special frequency band according to the definite described CRS of reception of configuration information of described CRS; Receiving element is used for receiving the CRS that the base station sends in described specific sub-frame and described special frequency band; Measuring unit is used for carrying out the measurement of channel information according to described CRS.

A kind of base station provided by the invention comprises: channels determining unit is used for specific sub-frame and special frequency band according to the definite described CRS of transmission of configuration information of CRS; Signal transmitting unit is used for sending CRS to subscriber equipment on described specific sub-frame and described special frequency band, so that described subscriber equipment is measured according to described CRS.

Another kind of subscriber equipment provided by the invention comprises: the configuration receiving element, and for the configuration information of the CSI-RS that receives the base station transmission, described CSI-RS comprises: a CSI-RS and the 2nd CSI-RS; The subframe determining unit is for the specific sub-frame of determining a described CSI-RS and the 2nd CSI-RS according to the configuration information of described CSI-RS; The reference signal receiving element, be used for receiving the CSI-RS that the base station sends at specific sub-frame and the Whole frequency band of a CSI-RS, receive the 2nd CSI-RS that the base station sends in the specific sub-frame of the 2nd CSI-RS and specific sub-frame and the special frequency band of Whole frequency band or the 2nd CSI-RS; Channel measurement unit is used for carrying out the measurement of channel information according to a described CSI-RS and/or described the 2nd CSI-RS.

Another kind of base station provided by the invention comprises: the configuration transmitting element, be used for to the configuration information of subscriber equipment transmission CSI-RS, and described CSI-RS comprises: a CSI-RS and the 2nd CSI-RS; The specific sub-frame determining unit is for the specific sub-frame of determining a described CSI-RS and the 2nd CSI-RS according to the configuration information of described CSI-RS; The reference signal transmitting element, be used on the specific sub-frame of a CSI-RS and Whole frequency band, sending a CSI-RS to subscriber equipment, the base station sends the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band, so that subscriber equipment carries out the measurement of channel information according to a described CSI-RS and/or the 2nd CSI-RS.

As can be seen from the above technical solutions, the embodiment of the invention has the following advantages: at specific sub-frame and special frequency band transmission CRS or CSI-RS, reduced the pilot-frequency expense of additional carrier among the present invention.

Description of drawings

Fig. 1 is a schematic flow sheet of the method for measurement of channel information in the embodiment of the invention;

Fig. 2 is another schematic flow sheet of the method for measurement of channel information in the embodiment of the invention;

Fig. 3 is another schematic flow sheet of the method for measurement of channel information in the embodiment of the invention;

Fig. 4 is another schematic flow sheet of the method for measurement of channel information in the embodiment of the invention;

Fig. 5 is another schematic flow sheet of the method for measurement of channel information in the embodiment of the invention;

Fig. 6 is another schematic flow sheet of the method for measurement of channel information in the embodiment of the invention;

Fig. 7 is another schematic flow sheet of the method for measurement of channel information in the embodiment of the invention;

Fig. 8 is another schematic flow sheet of the method for measurement of channel information in the embodiment of the invention;

Fig. 9 is a structural representation of subscriber equipment in the embodiment of the invention;

Figure 10 is a structural representation of base station in the embodiment of the invention;

Figure 11 is another structural representation of subscriber equipment in the embodiment of the invention;

Figure 12 is another structural representation of base station in the embodiment of the invention;

Figure 13 is the structural representation of the measuring system of channel information in the embodiment of the invention.

Embodiment

The embodiment of the invention provides a kind of method of measurement and relevant apparatus of channel information, so that UE can obtain accurately measurement parameter at additional carrier, and reduces the pilot-frequency expense on the additional carrier as far as possible.

See also Fig. 1, the method for measurement of channel information embodiment comprises in the embodiment of the invention:

101, subscriber equipment obtains the configuration information of CRS;

Subscriber equipment obtains the configuration information of CRS, in actual applications, subscriber equipment can obtain by the mode that receives high-level signaling that the base station sends or physical layer signaling the configuration information of CRS, the configuration information of the CRS that also can preset according to this locality, directly extract when needs use, concrete mode is not construed as limiting herein.

This configuration information can comprise the information, the information of duration, the information of frequency band size, the information of frequency domain position, the above-mentioned several or full details such as information of antenna opening of information, the subframe skew in the cycle of CRS, and the content of specific configuration information is not construed as limiting herein.

After the configuration information that has obtained CRS, subscriber equipment just can be known specifically and receives CRS in which subframe, frequency band and antenna opening.

102, subscriber equipment determines to receive specific sub-frame and the special frequency band of CRS;

Subscriber equipment determines to receive specific sub-frame and the special frequency band of this CRS according to the configuration information of above-mentioned CRS.

Concrete how to confirm specific sub-frame and special frequency band can have diverse ways, can decide according to the content of CRS configuration information, as: if include the specific sub-frame of indicating CRS and the information of special frequency band in the configuration information of this CRS, then can directly from this configuration information, extract; If include the information of cycle, subframe skew, frequency band size and the frequency domain position of indicating CRS in the configuration information of CRS, then can be according to the computation rule that presets, use the cycle of this CRS and the specific sub-frame that the subframe calculations of offset goes out CRS, use the frequency band size of this CRS and the special frequency band that frequency domain position calculates CRS; This computation rule that presets must be identical with the computation rule of base station end, and concrete computation rule is not construed as limiting herein, in the application's the subsequent content respective instance is arranged.

103, subscriber equipment receives the CRS that the base station sends in specific sub-frame and special frequency band;

Subscriber equipment receives the CRS that the base station sends in specific sub-frame and special frequency band, and this special frequency band can be the part of additional carrier frequency band.

104, subscriber equipment carries out the measurement of channel information according to CRS.

Subscriber equipment carries out the measurement of channel information according to the above-mentioned CRS that receives.This channel information is specifically as follows channel disturbance noise, channel quality or the relevant parameters of channel statuss such as further CSI, RSRP, RSRQ and PL.

Subscriber equipment of the present invention receives the CRS that the base station sends in specific sub-frame and special frequency band, and carries out the measurement of channel information according to this CRS; Because this CRS only sends in specific sub-frame and special frequency band, therefore, has reduced the pilot-frequency expense on the additional carrier.

The below is described in detail the calculating of the relevant parameters such as specific sub-frame and special frequency band in the method for measurement of channel information of the present invention, sees also Fig. 2, and another embodiment of the method for measurement of channel information comprises in the embodiment of the invention:

201, subscriber equipment receives the configuration information of the CRS of base station transmission;

Subscriber equipment receives the configuration information of the CRS of base station transmission, subscriber equipment can obtain by the high-level signaling that receives the base station transmission configuration information of CRS, also can obtain by the physical layer signaling that receives the base station transmission configuration information of CRS, the embodiment of the invention is preferably obtained the configuration information of CRS by the high-level signaling that receives the base station transmission.

Above-mentioned high-level signaling can be the RRC signaling, also can be MAC layer signaling; Above-mentioned physical layer signaling can be the Physical Downlink Control Channel signaling, also can be other physical layer signalings.

This configuration information can comprise the information of above-mentioned several or whole parameters such as cycle of indicating CRS, subframe skew, duration, frequency band size, frequency domain position, antenna opening, and the content of specific configuration information is not construed as limiting herein.

202, subscriber equipment determines to receive specific sub-frame and the special frequency band of CRS;

Subscriber equipment determines to receive specific sub-frame and the special frequency band of this CRS according to the configuration information of above-mentioned CRS.

One, determine the specific sub-frame of CRS:

Subscriber equipment obtains cycle and the subframe skew of CRS from the configuration information of above-mentioned CRS, with the cycle T of this CRS_CRSWith the subframe shifted by delta_CRSSubstitution formula one, formula one is specially:According to radio frame number n_fAnd the timeslot number n in the radio frames_sDifferent values determine the specific sub-frame of CRS.Above-mentioned radio frame number n_fBe nonnegative integer, radio frame number n_fBy 0 open numbering, a radio frames has 10 subframes, and each subframe has 2 time slots, so the timeslot number n in the radio frames_sSpan can be 0 to 19.

In this step, the cycle of CRS and subframe skew can have many cover candidate values, corresponding corresponding cycle of every cover candidate value and subframe skew, every cover candidate value can call numbers of correspondence, and this call number can be described as the sub-frame configuration call number of this cell special reference CRS.The value of cycle and subframe skew can be chosen according to actual conditions in the base station, and should cycle and sub-frame configuration call number notifying user equipment corresponding to subframe skew, so that subscriber equipment is determined the subframe that CRS sends according to this call number.In the embodiment of the invention, candidate's value of the cycle of this CRS and subframe skew can with channel state information reference signals (CSI-RS, Channel-State Information reference signal) skew of candidate's cycle of CSI-RS and candidate's subframe is consistent, and the sub-frame configuration of CRS can be as shown in table 1 at this moment.

Table 1:CRS sub-frame configuration

The subframe distribution of CRS (ICRS)	The cycle of CRS (TCRS)	CRS is offset (Δ CRS) with subframe
			0-4	5	ICRS
5-14	10	ICRS-5
			15-34	20	ICRS-15
35-74	40	ICRS-35
			75-154	80	ICRS-75

In addition, if also include the duration of CRS in the above-mentioned configuration information, then subscriber equipment can also be determined specific sub-frame in conjunction with this duration, is namely determined to send the subframe of cell special reference CRS by cycle, subframe skew and the duration of CRS.The value of this duration can be infinity, also can be a fixing value.The value of duration can be determined according to actual conditions in the base station, thereby can not need to send the transmission of closing CRS in the time period of CRS, further reduces the expense of CRS, saves the energy that sends CRS.Need to prove that the duration of this CRS can not indicate by the configuration information of CRS, but determine according to the default value in this locality, or the duration of acquiescence CRS is infinitely great.

Need to prove that the specific sub-frame of this CRS also can be can't help the configuration information indication of CRS of base station notice, for example can be determined by this locality default cycle and subframe skew, or be determined by the default specific sub-frame in this locality.

Two, determine the special frequency band of CRS:

The present invention does not limit definite mode of the special frequency band of CRS in this step.Now lift several definite modes:

Mode one: the configuration information of the CRS that subscriber equipment receives according tostep 201 is determined the special frequency band of CRS.

Under this mode, the information that can comprise the special frequency band of indicating CRS in the configuration information of the CRS that step 201 receives, can comprise that specifically indication sends the frequency band size of CRS and the information of frequency domain position, subscriber equipment is determined the special frequency band of CRS according to this frequency band size and frequency domain position.

The large little finger of toe of frequency band sends the size of the frequency band of CRS, and it can be the some of the system bandwidth of the carrier wave that sends this CRS.This frequency band size can be the integral multiple of RB (Resource Block), and 1 RB comprises 12 subcarriers.For example, this frequency band size can be 6RB.

The frequency band position refers to send the position of frequency band in system bandwidth of this CRS, and for example it can be positioned at the center of additional carrier system bandwidth.Special frequency band is by frequency band size and frequency band location positioning.For instance, this special frequency band can be 6 RB in system bandwidth center.

Mode two: subscriber equipment is determined the special frequency band of CRS according to the default information in this locality.

Under this mode, subscriber equipment is determined the special frequency band of CRS according to the default information in this locality, the special frequency band that particular user equipment can be determined CRS according to frequency band size and the frequency domain position of the default transmission CRS in this locality.At this moment, the information that does not comprise the special frequency band of indicating CRS in the configuration information of the CRS that receives ofstep 201.

In addition, CRS can be on specific sub-frame frequency hopping, this moment, subscriber equipment also can be determined according to the frequency-hopping mode of the frequency band size of the default CRS in this locality and CRS the special frequency band of CRS.The present invention does not limit the frequency-hopping mode of CRS, and following frequency-hopping mode can be arranged:

Frequency-hopping mode 1: in band system band, be cycled to repeat transmission take the frequency band size as granularity.At this moment, the frequency band position of initial subframe can be the center of band system band, also can be for being numbered that RB of 0 in the carrier system bandwidth that sends CRS.The frequency band position of initial subframe can agreement be stipulated, also can be notified by high-level signaling.

Frequency-hopping mode 2: utilize pseudo random sequence to produce the position of special frequency band in band system band, CRS sends at special frequency band.This pseudo random sequence can be determined by cell ID (cell ID, or title carrier identification) and the subframe numbers of specific sub-frame.

Mode three: the configuration information of the CRS that subscriber equipment receives according to step 201 and local default information are determined the special frequency band of CRS.

For example, the configuration information of the CRS that step 201 receives can comprise that indication sends the information of the frequency band size of CRS, local default information can comprise the information of the frequency domain position of indicating CRS, and subscriber equipment is determined the special frequency band of CRS according to the information of this indication frequency band size and indication frequency domain position.

203, subscriber equipment receives the CRS that the base station sends in specific sub-frame and special frequency band;

After subscriber equipment is determined the specific sub-frame and special frequency band of CRS bystep 202, the CRS that sends in specific sub-frame and the special frequency band reception base station of this CRS.

204, subscriber equipment carries out the measurement of channel information according to CRS.

Subscriber equipment carries out the measurement of channel information according to the above-mentioned CRS that receives.This channel information is specifically as follows channel disturbance noise, channel quality or the relevant parameters of channel statuss such as further CSI, RSRP, RSRQ and PL.

The invention described above embodiment introduces specific sub-frame and special frequency band is determined method, and in the practical application, in order further to reduce the expense of pilot tone, the base station can also only send the CRS of single antenna mouth, specifically see also Fig. 3, another embodiment of the method for measurement of the channel information in the embodiments of the invention on the additional carrier comprises:

301, subscriber equipment receives the configuration information of the CRS of base station transmission;

Subscriber equipment receives the configuration information of the CRS of base station transmission, subscriber equipment can obtain by the high-level signaling that receives the base station transmission configuration information of CRS, also can obtain by the physical layer signaling that receives the base station transmission configuration information of CRS, the present invention preferably obtains the configuration information of CRS by the high-level signaling that receives the base station transmission.

Above-mentioned high-level signaling can be the RRC signaling, also can be MAC layer signaling; Above-mentioned physical layer signaling can be the Physical Downlink Control Channel signaling, also can be other physical layer signalings.

Configuration information in the embodiment of the invention can comprise the information of above-mentioned several or whole parameters such as cycle of indicating CRS, subframe skew, duration, frequency band size, frequency domain position, antenna opening, and the content of specific configuration information is not construed as limiting herein.In addition, herein antenna opening is the single antenna mouth.

Need to prove, when the information that the information such as the cycle of the CRS of the configuration information indication of the CRS that describes when present embodiment, subframe skew, duration, frequency band size, frequency domain position, antenna opening are all preset by this locality by subscriber equipment was determined, the embodiment of the invention did not need this step.

302, subscriber equipment determines to receive the specific sub-frame of CRS;

The method of specific sub-frame of determining CRS in this step and thestep 202 is consistent, repeats no more herein.

303, subscriber equipment is determined the special frequency band of CRS;

The method of specific sub-frame of determining CRS in this step and thestep 203 is consistent, repeats no more herein.

304, subscriber equipment is determined the antenna opening that CRS is corresponding;

In embodiments of the present invention, the antenna opening that CRS is corresponding is the single antenna mouth, and namely the CRS pattern is single antenna mouth pattern.Determined the position of the Resource Unit (RE, resource element) that CRS takies in each RB by this single antenna mouth pattern.For example, if this single antenna mouth is antenna opening 0, then when CRS when antenna opening 0 is transmitted, this single antenna mouth pattern is CRS corresponding position on running time-frequency resource.This single antenna mouth is an element among candidate's antenna opening subset S, and described candidate's antenna opening subset is { antenna opening 0, antenna opening 2} or { antenna opening 0, antenna opening 3} or { antenna opening 1, antenna opening 2} or { antenna opening 1, antenna opening 3}.This single antenna mouth is to consult to obtain by X2 interface between each base station, and X2 interface is a passage of interactive information between the base station.Base station corresponding to the Serving cell of subscriber equipment notifies the employed single antenna mouth of Serving cell of this subscriber equipment of base station corresponding to the non-service cell of this subscriber equipment to carry out interactive cooperation by X2 interface.The purpose of interactive cooperation can for so that the CRS that different districts sends staggers at frequency domain, be tried one's best consistent thereby assurance sends the interference of the RE experience of CRS with the interference of the RE experience that sends data.Another purpose of interactive cooperation can also be so that different districts is used alternatingly the antenna opening of candidate's antenna opening subset the inside after after a while, because the density of CRS pattern in a RB of the different antennae mouth correspondence in candidate's antenna opening subset is inconsistent, for example antenna opening 0 is that 4 RE are arranged in the RB, antenna opening 2 be have 2 RE, different districts to be used alternatingly in the RB can be so that CRS expense and certainty of measurement etc. be carried out balance in the residential quarter.

In addition, the candidate's antenna opening subset in this step also can be { antenna opening 2, the antenna opening 2} of distortion or { antenna opening 3, the antenna opening 3} of distortion.Antenna opening 3 fingers of the antenna opening 2 of distortion or distortion utilize the frequency domain position of antenna opening 2 or antenna opening 3, but the pattern that the time-domain symbol translation is obtained.For example the antenna opening 2 of distortion can be to utilize the frequency domain position of antenna opening 2, but time-domain symbol is become the pattern that obtains after first time-domain symbol (l=0) of each time slot.

The single antenna mouth pattern that adopts in the embodiment of the invention is the existing pattern in the LTE Rel-8/9/10 system, can reduce the standard complexity, reduces simultaneously the testing complex degree of subscriber equipment; In addition, two patterns that antenna opening is corresponding in the embodiment of the invention in each candidate's antenna opening subset, stagger in time domain, reduced the collision of CRS between each residential quarter, thereby so that the measurement of the interference noise power that carries out based on CRS is as far as possible consistent with the interference noise of data experience, guaranteed to do based on CRS the accuracy of interference noise measurement.

305, subscriber equipment receives the CRS that the base station sends in specific sub-frame and special frequency band;

After the antenna opening of subscriber equipment by specific sub-frame, special frequency band and the correspondence of step 302,303 and 304 definite CRS, the CRS of this antenna opening that sends in specific sub-frame and the special frequency band reception base station of this CRS.

Because it is in order to carry out the measurement of channel information that the embodiment of the invention receives the purpose of CRS, so the CRS of single antenna mouth can guarantee certainty of measurement, and in order further to reduce the expense of pilot tone, the embodiment of the invention limits the corresponding single antenna mouth of the CRS CRS that sends.

306, subscriber equipment carries out the measurement of channel information according to CRS.

Subscriber equipment carries out the measurement of channel information according to the above-mentioned CRS that receives.This channel information is specifically as follows channel disturbance noise, channel quality or the relevant parameters of channel statuss such as further CSI, RSRP, RSRQ and PL.

The above is described from the angle of the subscriber equipment method of measurement to channel information the embodiment of the invention, the below carries out the method for measurement of channel information the embodiment of the invention is described from base station side, see also Fig. 4, another embodiment of the method for measurement of channel information comprises in the embodiments of the invention:

401, the base station sends the configuration information of CRS to subscriber equipment;

The base station is to the configuration information of subscriber equipment transmission CRS, so that subscriber equipment can be known the CRS that specifically receives which antenna opening at which subframe, frequency band.

In actual applications, the base station is optional step to the configuration information that subscriber equipment sends CRS, because can preset the configuration information of CRS in subscriber equipment, directly extracts when needs use, and needn't send by the base station configuration information of CRS.

This configuration information can include the above-mentioned several or full details such as the cycle, subframe skew, duration, frequency band size, frequency domain position, antenna opening of CRS, and the content of specific configuration information is not construed as limiting herein.

402, specific sub-frame and the special frequency band of CRS determined to send in the base station;

Specific sub-frame and the special frequency band of CRS determined to send in the base station according to the configuration information of CRS, concrete how to confirm specific sub-frame and special frequency band can have diverse ways, but the base station is necessary consistent with the rule of subscriber devices compute specific sub-frame and special frequency band, so that both sides can be known identical specific sub-frame and special frequency band, guarantee that subscriber equipment can receive the CRS that the base station sends.

Do not have strict sequential to limit between above-mentionedsteps 401 and thestep 402, specific sub-frame and the special frequency band of CRS are determined to send first in concrete base station, or send first the configuration information of CRS to subscriber equipment, can decide according to actual conditions.

403, the base station sends CRS to subscriber equipment on specific sub-frame and special frequency band;

After the base station has determined to send the specific sub-frame and special frequency band of CRS, send CRS in this specific sub-frame and special frequency band to subscriber equipment, so that subscriber equipment can carry out according to this CRS the measurement of channel information.

Base station in the embodiment of the invention sends CRS to subscriber equipment on specific sub-frame and special frequency band, so that subscriber equipment carries out the measurement of channel information according to this CRS; Send at each subframe Whole frequency band with CRS in the LTE Rel-8/9/10 system and to compare, because the base station is to send CRS to subscriber equipment on specific sub-frame and special frequency band in the present embodiment, therefore, reduced the pilot-frequency expense on the additional carrier.

The below is further described the performed method of measurement in base station in the embodiment of the invention, sees also Fig. 5, and another embodiment of the method for measurement of channel information comprises in the embodiments of the invention:

501, the base station sends the configuration information of CRS to subscriber equipment;

The base station sends the configuration information of CRS to subscriber equipment, so that subscriber equipment can be known specifically at which subframe, frequency band and the CRS that receives which antenna opening.

Which kind of signaling specifically can by send the configuration information of high-level signaling indication CRS to subscriber equipment, also can by send the configuration information of physical layer signaling indication CRS to subscriber equipment, specifically use send herein and be not construed as limiting the base station.

This configuration information can comprise the above-mentioned several or full details such as the cycle, subframe skew, duration, frequency band size, frequency domain position, antenna opening of CRS, and the content of specific configuration information is not construed as limiting herein.

In order further to reduce the expense of pilot tone, antenna opening herein can be the single antenna mouth.

502, the specific sub-frame of CRS is determined in the base station;

The base station can know first that cycle of CRS and subframe skew are with the cycle T of this CRS_CRSWith the subframe shifted by delta_CRSSubstitution formula one, formula one is specially:

According to radio frame number n_fAnd the timeslot number n in the radio frames_sDifferent values determine the specific sub-frame of CRS.Above-mentioned radio frame number n_fBe nonnegative integer, radio frame number n_fBy 0 open numbering, a radio frames has 10 subframes, and each subframe has 2 time slots, so the timeslot number n in the radio frames_sSpan can be 0 to 19.

In this step, the cycle of CRS and subframe skew can have many cover candidate values, corresponding corresponding cycle of every cover candidate value and subframe skew, every cover candidate value can call numbers of correspondence, and this call number can be described as the sub-frame configuration call number of this cell special reference CRS.The value of cycle and subframe skew can be chosen according to actual conditions in the base station, and should cycle and sub-frame configuration call number notifying user equipment corresponding to subframe skew, so that subscriber equipment is determined the subframe that cell reference signals CRS sends according to this call number.In the embodiment of the invention, candidate's value of the cycle of this cell special reference CRS and subframe skew can be consistent with candidate's cycle and the skew of candidate's subframe of CSI-RS.

In addition, specific sub-frame can also be determined in conjunction with this duration in the base station, is namely determined to send the subframe of cell special reference by cycle, subframe skew and the duration of CRS.The value of this duration can be infinity, also can be a fixing value.The value of duration can be determined according to actual conditions in the base station, thereby can not need to send the transmission of closing CRS in the time period of CRS, further reduces the expense of CRS, saves the energy that sends CRS.

Need to prove that the skew of the cycle of the CRS in this step and subframe can be that the configuration information according to the CRS in the step 501 obtains; In addition, the configuration information equipment for indicating user of CRS can not passed through in the duration base station of this CRS.

503, the special frequency band of CRS is determined in the base station;

The present invention does not limit definite mode of the special frequency band of CRS in this step.Now lift several definite modes:

Mode one: the configuration information of the CRS that the base station receives according to step 501 is determined the special frequency band of CRS.

Under this mode, the information that can comprise the special frequency band of indicating CRS in the configuration information of the CRS that step 501 receives, can comprise that specifically indication sends the frequency band size of CRS and the information of frequency domain position, the special frequency band of CRS is determined in the base station according to this frequency band size and frequency domain position.The associated description of frequency band size and frequency domain position is as described in thestep 202.

Mode two: the special frequency band of CRS is determined in the base station according to the default information in this locality.

Under this mode, the special frequency band of CRS is determined according to the default information in this locality in the base station, the special frequency band that CRS can be determined according to frequency band size and the frequency domain position of the default transmission CRS in this locality in concrete base station.At this moment, the information that does not comprise the special frequency band of indicating CRS in the configuration information of the CRS that receives of step 501.

In addition, CRS can be on specific sub-frame frequency hopping, this moment, the special frequency band of CRS also can be determined according to the frequency-hopping mode of the frequency band size of the default CRS in this locality and CRS in the base station.The present invention does not limit the frequency-hopping mode of CRS, and concrete frequency-hopping mode is as described in thestep 202.

Mode three: the configuration information of the CRS that the base station receives according to step 501 and local default information are determined the special frequency band of CRS.

For example, the configuration information of the CRS that step 501 receives can comprise that indication sends the information of the frequency band size of CRS, local default information can comprise the information of the frequency domain position of indicating CRS, and the special frequency band of CRS is determined in the base station according to the information of this indication frequency band size and indication frequency domain position.

504, the antenna opening that CRS is corresponding is determined in the base station;

This step repeats no more about description such as thestep 304 of antenna opening herein.

There is not strict sequential to limit between above-mentioned steps 501, step 502, step 503 and the step 504.For example, if the base station end is selected directly by configuration information specific sub-frame, the special frequency band of CRS to be sent to the subscriber equipment end, then step 502 and step 503 item can be carried out before step 501, the execution order of step 501, step 502 and step 503 can be decided according to the actual requirements, is not construed as limiting herein.

504, the base station sends CRS to subscriber equipment on specific sub-frame and special frequency band.

After the base station has determined to send the specific sub-frame and special frequency band of CRS, send CRS in this specific sub-frame and special frequency band to subscriber equipment, so that subscriber equipment can carry out according to this CRS the measurement of channel information.

Subscriber equipment is except carrying out according to CRS the measurement of channel information, can also carry out according to CSI-RS the measurement of channel information, but because existing CSI-RS has introduced the PDSCH technology of mourning in silence, so that not accurate enough to the measurement of channel disturbance noise based on CSI-RS, the solution of the problems referred to above is provided in the embodiment of the invention, specifically see also Fig. 6, another embodiment of the method for measurement of additional carrier upper signal channel information comprises in the embodiment of the invention:

601, subscriber equipment receives the configuration information of the CSI-RS of base station transmission;

Subscriber equipment receives the configuration information of the CSI-RS of base station transmission, and this CSI-RS includes: a CSI-RS and the 2nd CSI-RS.

When the base station that the Serving cell of this subscriber equipment is corresponding sent an above-mentioned CSI-RS, the base station that non-service cell is corresponding can be carried out PDSCH and mourned in silence, and also can not carry out PDSCH and mourn in silence, and a CSI-RS sends with the non-zero transmitting power on Whole frequency band; And base station corresponding to the Serving cell of this subscriber equipment be when sending above-mentioned the 2nd CSI-RS, and the base station that non-service cell is corresponding is not carried out PDSCH and mourned in silence, and the 2nd CSI-RS specifically can send at special frequency band, also can send at Whole frequency band.The downstream transmission bandwidth of the descending carrier that above-mentioned Whole frequency band assignment is put for example can be used

The downstream transmission bandwidth that represents the descending carrier of this configuration.The additional carrier that the descending carrier of this configuration can assignment be put.In addition, if the descending carrier of this configuration is comprised of a backward compatibility carrier wave and carrier wave fragment, then the Whole frequency band of the descending carrier of this configuration can only refer to the downstream transmission bandwidth of backward compatibility carrier wave, also can refer to the downstream transmission bandwidth that backward compatibility carrier wave and carrier wave fragment are combined.Under the carrier wave party scene, the descending carrier of this configuration can be for disposing to one in the descending carrier of this subscriber equipment.

PDSCH mourn in silence (PDSCH Muting) is not carried out to the 2nd CSI-RS in base station corresponding to the non-service cell of this subscriber equipment, base station corresponding to non-service cell that namely refers to this subscriber equipment, send on the RE of the 2nd CSI-RS in base station corresponding to the Serving cell of this subscriber equipment, can send the PDSCH data.The base station that non-service cell is corresponding is not carried out PDSCH to the 2nd CSI-RS and is mourned in silence, can be so that the interference similar with the RE of transmission data of the 2nd CSI-RS experience, thus can carry out the more accurately measurement of channel disturbance noise based on the 2nd CSI-RS.Need to prove, can be that the base station corresponding to all non-service cells of this subscriber equipment do not carried out PDSCH to the 2nd CSI-RS and mourned in silence; Also can only be that the base station corresponding to part non-service cell of this subscriber equipment do not carried out PDSCH to the 2nd CSI-RS and mourned in silence, namely can only be that the signal that may send the Serving cell of this subscriber equipment in the non-service cell of this subscriber equipment causes the base station corresponding to those non-service cells of interference that the 2nd CSI-RS is not carried out PDSCH to mourn in silence.

The Serving cell of subscriber equipment can refer to the residential quarter of subscriber equipment access in this step, and non-service cell can refer to other residential quarters except the residential quarter of this subscriber equipment access.The base station that the Serving cell of this subscriber equipment is corresponding sends one or more in the descending carrier that the descending carrier of a CSI-RS and the 2nd CSI-RS in this step can be this Serving cell.

The configuration information of CSI-RS can include the information of corresponding antenna opening, resource distribution index and sub-frame configuration of indication the one CSI-RS and the 2nd CSI-RS, and cycle and the subframe skew of this sub-frame configuration indication CSI-RS.The position of the Resource Unit (RE) that the resource distribution index can be used for determining that each antenna opening of CSI-RS is corresponding namely can be used for determining the pattern (Pattern) of CSI-RS.

Need to prove, the configuration information of this CSI-RS can comprise respectively the configuration information for a CSI-RS and the 2nd CSI-RS, can comprise that also the while is for the configuration information of a CSI-RS and the 2nd CSI-RS, for example the information of the configuration information indicating sub-frame configuration of this CSI-RS can only have a cover and it is all effective to a CSI-RS and the 2nd CSI-RS simultaneously, also two covers can be arranged, indicate respectively the sub-frame configuration of a CSI-RS and the sub-frame configuration of the 2nd CSI-RS; Preferentially, comprise in the configuration information of this CSI-RS and indicate respectively antenna opening corresponding to a CSI-RS and the 2nd CSI-RS and indicate respectively a CSI-RS and the information of the resource distribution index that the 2nd CSI-RS is corresponding.

Need to prove: the configuration information of this CSI-RS also can not comprise the information of the antenna opening that indication Equations of The Second Kind CSI-RS is corresponding, and antenna opening corresponding to Equations of The Second Kind CSI-RS this moment is predetermined antenna opening, and namely by the default antenna opening in this locality, for example antenna opening 15; The configuration information of this CSI-RS also can not comprise the information of the sub-frame configuration that indication Equations of The Second Kind CSI-RS is corresponding, sub-frame configuration (i.e. corresponding cycle and subframe skew) corresponding to Equations of The Second Kind CSI-RS this moment is the specific configuration of standard appointment, or corresponding with the sub-frame configuration implicit expression of first kind CSI-RS, for example consistent with the sub-frame configuration of first kind CSI-RS or be a special specific subset in the transmission subframe of first kind CSI-RS; The configuration information of this CSI-RS also can not comprise the information of the resource distribution index that indication Equations of The Second Kind CSI-RS is corresponding, and resource distribution index corresponding to Equations of The Second Kind CSI-RS this moment is local default a kind of configuration.In addition, the configuration information of this CSI-RS can also comprise the information of the special frequency band of indication Equations of The Second Kind CSI-RS.

The antenna opening that Equations of The Second Kind CSI-RS is corresponding can only be the single antenna mouth, for example can be antenna opening 15.

The one CSI-RS is non-zero transmitting power CSI-RS, a CSI-RS who is the base station emission must have load, need to prove, the 2nd CSI-RS can be zero transmitting power CSI-RS, be that the 2nd CSI-RS can zero load be launched in the base station, but RE corresponding to Equations of The Second Kind CSI-RS can not transmitted data signal, and Equations of The Second Kind CSI-RS only was used for interference noise and measured this moment.

602, subscriber equipment is determined the specific sub-frame of a CSI-RS and the 2nd CSI-RS according to the configuration information of CSI-RS;

Subscriber equipment determines to receive the specific sub-frame of CSI-RS according to the configuration information of CSI-RS, concrete how to confirm specific sub-frame can have diverse ways, but the base station is necessary consistent with the rule of subscriber devices compute specific sub-frame and special frequency band, so that both sides can be known identical specific sub-frame, guarantee that subscriber equipment can receive the CSI-RS that the base station sends.

The one CSI-RS determines that with the 2nd CSI-RS the method for specific sub-frame can be different, and the specific sub-frame of a CSI-RS and the 2nd CSI-RS also can be different.

603, subscriber equipment receives the CSI-RS that the base station sends at specific sub-frame and the Whole frequency band of a CSI-RS;

After subscriber equipment is determined the specific sub-frame of a CSI-RS by step 602, a CSI-RS who sends in specific sub-frame and the Whole frequency band reception base station of a CSI-RS.

604, subscriber equipment receives the 2nd CSI-RS that the base station sends at specific sub-frame and the corresponding frequency band of the 2nd CSI-RS;

After subscriber equipment is determined the specific sub-frame of the 2nd CSI-RS by step 602, the 2nd CSI-RS that sends in specific sub-frame and the corresponding frequency band reception base station of the 2nd CSI-RS.Corresponding frequency band in this step can be Whole frequency band or special frequency band.

605, subscriber equipment carries out the measurement of channel information according to a CSI-RS and/or the 2nd CSI-RS respectively.

Subscriber equipment carries out the measurement of channel information according to an above-mentioned CSI-RS who receives and/or the 2nd CSI-RS, and this channel information is specifically as follows channel disturbance noise, channel quality or the relevant parameters of channel statuss such as further CSI, RSRP, RSRQ and PL.

After the measurement result that obtains channel quality and channel disturbance noise, subscriber equipment just can carry out the isoparametric calculating of CSI, RSRP, RSRQ and PL.

In embodiments of the present invention, proposed to send the 2nd CSI-RS at the descending carrier of configuration, the base station that non-service cell is corresponding is not carried out PDSCH to the 2nd CSI-RS and is mourned in silence, can be so that the interference similar to the RE that sends data of the 2nd CSI-RS experience, thereby can carry out the more accurately measurement of channel disturbance noise based on the 2nd CSI-RS, and then can accurately obtain the more accurately measurement result of all kinds of channel informations.

The below is further described the method for measurement of the performed channel information of subscriber equipment in the embodiment of the invention, sees also Fig. 7, and another embodiment of the method for measurement of channel information comprises in the embodiments of the invention:

701, subscriber equipment receives the configuration information of the CSI-RS of base station transmission;

Subscriber equipment receives the configuration information of the CSI-RS of base station transmission, subscriber equipment can obtain by the high-level signaling that receives the base station transmission configuration information of CSI-RS, also can obtain by the physical layer signaling that receives the base station transmission configuration information of CSI-RS, the present invention preferably obtains the configuration information of CSI-RS by the high-level signaling that receives the base station transmission.This CSI-RS includes: a CSI-RS and the 2nd CSI-RS.

Other of configuration information, a CSI-RS and the 2nd CSI-RS of CSI-RS in this step are explained such as step 601, repeated no more herein.

702, subscriber equipment is determined the specific sub-frame of a CSI-RS and the 2nd CSI-RS according to the configuration information of CSI-RS;

Subscriber equipment obtains cycle and the subframe skew of cycle of a CSI-RS and subframe skew and the 2nd CSI-RS from the configuration information of above-mentioned CSI-RS, and according to cycle and the cycle of subframe skew and the 2nd CSI-RS and the specific sub-frame that subframe is offset a definite CSI-RS and the 2nd CSI-RS of a CSI-RS.Determine according to cycle of CSI-RS and subframe skew CSI-RS specific sub-frame method can for: with the cycle T of CSI-RS_CSI-RSWith the subframe shifted by delta_CSI-RSSubstitution formula two, formula two is specially:According to radio frame number n_fAnd the timeslot number n in the radio frames_sDifferent values determine the specific sub-frame of CSI-RS.Above-mentioned radio frame number n_fBe nonnegative integer, radio frame number n_fBy 0 open numbering, a radio frames has 10 subframes, and each subframe has 2 time slots, so the timeslot number n in the radio frames_sSpan can be 0 to 19.

In this step, the cycle of CSI-RS and subframe skew can have many cover candidate values, corresponding corresponding cycle of every cover candidate value and subframe skew, every cover candidate value can corresponding call number, and this call number can be described as the sub-frame configuration call number of this cell channel state information reference signals CSI-RS.The value of cycle and subframe skew can be chosen according to actual conditions in the base station, and should the cycle and sub-frame configuration call number notifying user equipment corresponding to subframe skew, so that subscriber equipment is determined the specific sub-frame that CSI-RS sends according to this call number, and should the cycle and sub-frame configuration call number corresponding to subframe skew can indicate by the subframe configuration information in the configuration information of CSI-RS.

In addition, can also comprise the information of indicating for the 2nd CSI-RS duration in the configuration information of CSI-RS, subscriber equipment can also be determined in conjunction with this duration the specific sub-frame of the 2nd CSI-RS, is namely determined to send the specific sub-frame of the 2nd CSI-RS by cycle, subframe skew and the duration of the 2nd CSI-RS.The value of this duration can be infinity, also can be a fixing value.The value of duration can be determined according to actual conditions in the base station, thereby can not need to send the transmission of closing CSI-RS in the time period of CSI-RS, further reduces the expense of CSI-RS, saves the energy that sends CSI-RS.Need to prove, the duration of the 2nd CSI-RS can be by the configuration information indication of CSI-RS, but determine according to the default value in this locality, or the duration of giving tacit consent to the 2nd CSI-RS is for infinitely great.

703, subscriber equipment is determined the special frequency band of the 2nd CSI-RS;

The present invention does not limit definite mode of the special frequency band of the 2nd CSI-RS in this step.Now lift several definite modes:

Mode one: the configuration information of the CSI-RS that subscriber equipment receives according to step 701 is determined the special frequency band of the 2nd CSI-RS.

Under this mode, the information that can comprise the special frequency band of indicating the 2nd CSI-RS in the configuration information of the CSI-RS that step 701 receives, can comprise that specifically indication sends the frequency band size of the 2nd CSI-RS and the information of frequency domain position, subscriber equipment is determined the special frequency band of the 2nd CSI-RS according to this frequency band size and frequency domain position.

The large little finger of toe of frequency band sends the size of the frequency band of the 2nd CSI-RS, and it can be the some of the system bandwidth of the carrier wave that sends the 2nd CSI-RS.This frequency band size can be the integral multiple of RB (Resource Block), and 1 RB comprises 12 subcarriers.For example, this frequency band size can be 6RB.

The frequency band position refers to send the position of frequency band in system bandwidth of the 2nd CSI-RS, and for example it can be positioned at the center of additional carrier system bandwidth.Special frequency band is by frequency band size and frequency band location positioning.For instance, this special frequency band can be 6 RB in system bandwidth center.

Mode two: subscriber equipment is determined the special frequency band of the 2nd CSI-RS according to the default information in this locality.

Under this mode, subscriber equipment is determined the special frequency band of the 2nd CSI-RS according to the default information in this locality, the special frequency band that particular user equipment can be determined the 2nd CSI-RS according to frequency band size and the frequency domain position of default transmission the 2nd CSI-RS in this locality.At this moment, the information that does not comprise the special frequency band of indicating the 2nd CSI-RS in the configuration information of the CSI-RS that receives of step 701.

In addition, the 2nd CSI-RS can be on specific sub-frame frequency hopping, this moment, subscriber equipment also can be determined according to the frequency-hopping mode of the frequency band size of the 2nd default CSI-RS of this locality and the 2nd CSI-RS the special frequency band of the 2nd CSI-RS.The present invention does not limit the frequency-hopping mode of the 2nd CSI-RS, and following frequency-hopping mode can be arranged:

Frequency-hopping mode 1: in band system band, be cycled to repeat transmission take the frequency band size as granularity.At this moment, the frequency band position of initial subframe can be the center of band system band, also can be for being numbered that RB of 0 in the carrier system bandwidth that sends the 2nd CSI-RS.The frequency band position of initial subframe can agreement be stipulated, also can be notified by high-level signaling.

Frequency-hopping mode 2: utilize pseudo random sequence to produce the position of special frequency band in band system band, the 2nd CSI-RS sends at special frequency band.This pseudo random sequence can be determined by cell ID (cell ID, or title carrier identification) and the subframe numbers of specific sub-frame.

Mode three: the configuration information of the CSI-RS that subscriber equipment receives according to step 701 and local default information are determined the special frequency band of the 2nd CSI-RS.

For example, the configuration information of the CSI-RS that step 701 receives can comprise that indication sends the information of the frequency band size of the 2nd CSI-RS, local default information can comprise the information of the frequency domain position of indicating the 2nd CSI-RS, and subscriber equipment is determined the special frequency band of the 2nd CSI-RS according to the information of this indication frequency band size and indication frequency domain position.

704, subscriber equipment receives the CSI-RS that the base station sends at specific sub-frame and the Whole frequency band of a CSI-RS;

After subscriber equipment is determined the specific sub-frame of a CSI-RS by step 702, a CSI-RS who sends in specific sub-frame and the Whole frequency band reception base station of a CSI-RS.

705, subscriber equipment receives the 2nd CSI-RS that the base station sends at specific sub-frame and the special frequency band of the 2nd CSI-RS;

After subscriber equipment is determined the specific sub-frame and special frequency band of the 2nd CSI-RS by step 702 and step 703, the 2nd CSI-RS that sends in specific sub-frame and the special frequency band reception base station of the 2nd CSI-RS.

706, subscriber equipment carries out the measurement of channel information according to a CSI-RS and/or the 2nd CSI-RS.

Subscriber equipment carries out the measurement of channel information according to an above-mentioned CSI-RS who receives and/or the 2nd CSI-RS, and this channel information is specifically as follows channel disturbance noise, channel quality or the relevant parameters of channel statuss such as further CSI, RSRP, RSRQ and PL.

Concrete, if the 2nd CSI-RS is non-zero transmitting power CSI-RS, then subscriber equipment can carry out the measurement of channel information as follows: subscriber equipment can carry out the measurement of channel disturbance noise or only carry out the measurement of channel disturbance noise according to the 2nd CSI-RS according to a CSI-RS and the 2nd CSI-RS; Subscriber equipment can carry out channel quality and channel disturbance noise testing according to a CSI-RS and the 2nd CSI-RS, according to channel quality and channel disturbance noise calculation CSI; Subscriber equipment can carry out Reference Signal Received Power RSRP according to a CSI-RS and measure; Subscriber equipment can carry out path loss according to a CSI-RS and measure.

If the 2nd CSI-RS is zero transmitting power CSI-RS, then subscriber equipment can carry out the measurement of channel information as follows: subscriber equipment can carry out according to the 2nd CSI-RS the measurement of channel disturbance noise; Subscriber equipment can carry out channel quality measurement according to a CSI-RS, carries out the measurement of channel disturbance noise according to the 2nd CSI-RS, according to channel quality and channel disturbance noise calculation CSI; Subscriber equipment can carry out path loss according to a CSI-RS and measure.

When subscriber equipment carries out the path loss measurement according to CSI-RS, can carry out based on the CSI-RS information that receives the measurement of Reference Signal Received Power RSRP, regularly the RSRP that measures is reported the high-rise (layer 3 of UE, Layer 3), after the subscriber equipment high level was done filtering to the RSRP that reports, physical layer utilized filtered RSRP that needed path loss in the uplink power control formula is measured.Concrete measure equation can be PL_c=CSIreferenceSignalPower-higher layer filtered RSRP, CSIreferenceSignalPower is the transmitting power of the upper CSI-RS of carrier wave c, and CSIreferenceSignalPower is the parameter of high-rise (base station) notice, namely can notify by high-level signaling the transmitting power of CSI-RS.CSI-RS in the method can be first kind CSI-RS, also can be Equations of The Second Kind CSI-RS, and perhaps simultaneously based on two class CSI-RS, the present invention is preferably based on first kind CSI-RS and carries out the path loss measurement.If first kind CSI-RS has adopted the PDSCH technology of mourning in silence, then carry out path loss based on first kind CSI-RS and measure and to obtain more accurately measurement result, and Measurement Algorithm is simple, because first kind CSI-RS is not subjected to the interference from other cell signals.

When subscriber equipment carries out Reference Signal Received Power RSRP measurement, can measure based on first kind CSI-RS information, also can measure based on Equations of The Second Kind CSI-RS information, perhaps measure based on two class CSI-RS simultaneously.The present invention is preferably based on first kind CSI-RS and measures.If first kind CSI-RS has adopted the PDSCH technology of mourning in silence, then carry out path loss based on first kind CSI-RS and measure and to obtain more accurately measurement result, and Measurement Algorithm is simple, because first kind CSI-RS is not subjected to the interference from other cell signals.

The above is described from the angle of the subscriber equipment method of measurement to channel information the embodiment of the invention, the below carries out the method for measurement of channel information the embodiment of the invention is described from base station side, see also Fig. 8, another embodiment of the method for measurement of channel information comprises in the embodiments of the invention:

801, the base station sends the configuration information of CSI-RS to subscriber equipment;

The base station sends the configuration information of CSI-RS to subscriber equipment, the base station can be by sending the configuration information of high-level signaling indication CSI-RS to subscriber equipment, also can be by send the configuration information of physical layer signaling indication CSI-RS to subscriber equipment, the present invention is preferably by sending the configuration information of high-level signaling indication CSI-RS to subscriber equipment.This CSI-RS includes: a CSI-RS and the 2nd CSI-RS.

To the configuration information of CSI-RS in this step, other of a CSI-RS and the 2nd CSI-RS are explained such as step 601, are repeated no more herein.

802, the specific sub-frame of a CSI-RS and the 2nd CSI-RS is determined in the base station according to the configuration information of CSI-RS;

The base station obtains cycle and the subframe skew of cycle of a CSI-RS and subframe skew and the 2nd CSI-RS from the configuration information of above-mentioned CSI-RS, and according to cycle and the cycle of subframe skew and the 2nd CSI-RS and the specific sub-frame that subframe is offset a definite CSI-RS and the 2nd CSI-RS of a CSI-RS.Cycle according to CSI-RS is consistent with the method for step 702 with the method for the specific sub-frame of the definite CSI-RS of subframe skew, repeats no more herein.

In this step, the cycle of CSI-RS and subframe skew can have many cover candidate values, corresponding corresponding cycle of every cover candidate value and subframe skew, every cover candidate value can call numbers of correspondence, and this call number can be described as the sub-frame configuration call number of this cell special reference CSI-RS.The value of cycle and subframe skew can be chosen according to actual conditions in the base station, and should the cycle and sub-frame configuration call number notifying user equipment corresponding to subframe skew, so that subscriber equipment is determined the specific sub-frame that cell reference signals CSI-RS sends according to this call number, and should the cycle and sub-frame configuration call number corresponding to subframe skew can indicate by the subframe configuration information in the configuration information of CSI-RS.

In addition, can also comprise the information of indicating for the 2nd CSI-RS duration in the configuration information of CSI-RS, the specific sub-frame of the 2nd CSI-RS can also be determined in conjunction with this duration in the base station, is namely determined to send the specific sub-frame of the 2nd CSI-RS by cycle, subframe skew and the duration of the 2nd CSI-RS.The value of this duration can be infinity, also can be a fixing value.The value of duration can be determined according to actual conditions in the base station, thereby can not need to send the transmission of closing CSI-RS in the time period of CSI-RS, further reduces the expense of CSI-RS, saves the energy that sends CSI-RS.Need to prove, the duration of the 2nd CSI-RS can be by the configuration information indication of CSI-RS, but determine according to the default value in this locality, or the duration of giving tacit consent to the 2nd CSI-RS is for infinitely great.

803, the special frequency band of the 2nd CSI-RS is determined in the base station;

The present invention does not limit definite mode of the special frequency band of Equations of The Second Kind CSI-RS in this step.Now lift several definite modes:

Mode one: the special frequency band of the 2nd CSI-RS is determined in the base station according to the configuration information of the CSI-RS of step 801 transmission.

Under this mode, the information that can comprise the special frequency band of indication Equations of The Second Kind CSI-RS in the configuration information of the CSI-RS that step 801 sends, can comprise that specifically indication sends the frequency band size of the 2nd CSI-RS and the information of frequency domain position, the special frequency band of the 2nd CSI-RS is determined in the base station according to this frequency band size and frequency domain position.The same with step 703 with the explanation of frequency domain position about the frequency band size, repeat no more herein.

Mode two: the special frequency band of the 2nd CSI-RS is determined in the base station according to the default information in this locality.

Under this mode, the special frequency band of the 2nd CSI-RS is determined according to the default information in this locality in the base station, the special frequency band that the 2nd CSI-RS can be determined according to frequency band size and the frequency domain position of default transmission the 2nd CSI-RS in this locality in concrete base station.At this moment, the information that does not comprise the special frequency band of indicating the 2nd CSI-RS in the configuration information of the CSI-RS of step 801 transmission.

In addition, Equations of The Second Kind CSI-RS can be on specific sub-frame frequency hopping, this moment, the special frequency band of the 2nd CSI-RS also can be determined according to the frequency-hopping mode of the frequency band size of the 2nd default CSI-RS of this locality and the 2nd CSI-RS in the base station.The present invention does not limit the frequency-hopping mode of the 2nd CSI-RS,, repeats no more as described in the step 703 about the explanation of mode of frequency regulation herein.

Mode three: the special frequency band that the 2nd CSI-RS is determined according to configuration information and the local default information of the CSI-RS of step 801 transmission in the base station.

For example, the configuration information of the CSI-RS that step 801 sends can comprise that indication sends the information of the frequency band size of the 2nd CSI-RS, local default information can comprise the information of the frequency domain position of indicating the 2nd CSI-RS, and the special frequency band of the 2nd CSI-RS is determined in the base station according to the information of this indication frequency band size and indication frequency domain position.

804, the CSI-RS that on the specific sub-frame of a CSI-RS and Whole frequency band, sends to subscriber equipment of base station;

After the specific sub-frame of a CSI-RS is determined by step 802 in the base station, a CSI-RS who sends in specific sub-frame and the Whole frequency band reception base station of a CSI-RS.

805, the 2nd CSI-RS that on the specific sub-frame of the 2nd CSI-RS and corresponding frequency band, sends to subscriber equipment of base station;

After subscriber equipment is determined the specific sub-frame of the 2nd CSI-RS by step 802,, receive the 2nd CSI-RS that the base station sends at specific sub-frame and the corresponding frequency band of the 2nd CSI-RS.Corresponding frequency band in this step can be Whole frequency band or special frequency band.

Wherein, in order to reduce the expense of pilot tone, the base station can use the single antenna mouth that the 2nd CSI-RS is sent on the spatial domain.

In the embodiment of the invention, by sending first kind CSI-RS and Equations of The Second Kind CSI-RS at additional carrier, subscriber equipment can carry out interference noise based on Equations of The Second Kind CSI-RS and measure, and do not mourn in silence owing to Equations of The Second Kind CSI-RS does not carry out PDSCH, thereby guaranteed to obtain accurately measuring amount at additional carrier; Simultaneously, the Equations of The Second Kind CSI-RS that sends on the additional carrier at first only sends (namely only sending in the part subframe) in specific sub-frame, secondly each subframe only sends (namely only sending at the part frequency band) at special frequency band, last CSI-RS corresponding to part antenna opening pattern that only send, take expense thereby reduced CSI-RS, improved the efficient that energy is saved.

Need to prove that the described method of measurement of all embodiment of the present invention is not limited to additional carrier, also can be used for the measurement on other carrier types, for example also applicable to the backward compatibility carrier wave.At this moment, only need get final product the carrier wave that the additional carrier among the embodiment replace to this method of measurement application.The described method of measurement of the embodiment of the invention also is not limited to only be used for carrier aggregation scene, also can be used for other scene, for example collaborative multiple spot (CoMP, Coordinated multiple point) technology application scenarios.

The below describes the embodiment of the subscriber equipment of the present invention of the method for measurement that is used for carrying out above-mentioned channel information, and its logical construction please refer to Fig. 9, and subscriber equipment embodiment comprises in the embodiment of the invention:

Acquiringunit 901 is for the configuration information that obtains CRS;

Determiningunit 902 is used for specific sub-frame and special frequency band according to the definite CRS of reception of configuration information of above-mentioned CRS;

Receivingelement 903 is used for receiving the CRS that the base station sends in specific sub-frame and special frequency band;

Measuringunit 904 is used for carrying out the measurement of channel information according to the above-mentioned CRS that receives.

Optionally, the determining unit in the embodiment of theinvention 902 can comprise:

Thefirst determination module 9021 is used for according to the cycle of the configuration information of above-mentioned CRS and the specific sub-frame that CRS is determined in the subframe skew, or determines the specific sub-frame of CRS according to the duration in the configuration information of above-mentioned CRS, cycle and subframe skew;

Thesecond determination module 9022 has fixing frequency domain position if be used for above-mentioned CRS, and then and frequency domain position big or small according to the frequency band in the configuration information of CRS determined the special frequency band of CRS; Or if above-mentioned CRS frequency hopping on specific sub-frame, then the mode of frequency hopping on specific sub-frame is determined the special frequency band of CRS according to the frequency band size in the configuration information of CRS and CRS.

Optionally, the measuring unit in the embodiment of theinvention 904 can comprise:

Thefirst measurement module 9041 is used for carrying out the measurement of channel disturbance noise according to above-mentioned CRS;

Thesecond measurement module 9042 is used for carrying out the measurement of channel quality according to above-mentioned CRS;

The3rd measurement module 9043 is used for carrying out the measurement of RSRP according to above-mentioned CRS;

The4th measurement module 9044 is used for carrying out the measurement of path loss according to above-mentioned CRS.

Optionally, the acquiring unit in the embodiment of theinvention 901 can comprise:

Thefirst acquisition module 9011 is for the configuration information of the CRS that obtains the base station transmission by high-level signaling;

Thesecond acquisition module 9012 is for the configuration information of the CRS that obtains the base station transmission by physical layer signaling;

The 3rd acquisition module 9013, the configuration information that is used for presetting in this locality obtains the configuration information of CRS.

The concrete reciprocal process of the unit of subscriber equipment is as follows in the embodiment of the invention:

Acquiringunit 901 obtains the configuration information of CRS, this configuration information can comprise the information of above-mentioned several or whole parameters such as cycle of indicating CRS, subframe skew, duration, frequency band size, frequency domain position, antenna opening, and the content of specific configuration information can be decided according to actual conditions.Optionally, specifically can be obtained by thefirst acquisition module 9011 of acquiringunit 901 configuration information of the CRS of base station transmission by high-level signaling, also can obtainreceiver module 9012 by second of thefirst receiving element 901 and obtain the configuration information of the CRS that the base station sends by physical layer signaling, can also in the configuration information that preset this locality, be obtained by the 3rd acquisition module 9013 of thefirst receiving element 901 configuration information of CRS; Concrete which kind of signaling of using receives and can decide according to actual conditions, is not construed as limiting herein.

After receiving above-mentioned configuration information, determining unit 902 determines to receive specific sub-frame and the special frequency band of this CRS according to the configuration information of above-mentioned CRS.Concrete, can determine the specific sub-frame of CRS according to the cycle in the configuration information of above-mentioned CRS and subframe skew by the first determination module 9021, or determine the specific sub-frame of CRS according to the duration in the configuration information of above-mentioned CRS, cycle and subframe skew; Need to prove that the duration of this CRS can not indicate by the configuration information of CRS, but determine according to the default value in this locality, or the duration of acquiescence CRS is infinitely great; And the specific sub-frame of this CRS also can be can't help the configuration information indication of CRS of base station notice, for example can be determined by this locality default cycle and subframe skew, or is determined by the default specific sub-frame in this locality.If above-mentioned CRS has fixing frequency domain position, then the second determination module 9022 is determined the special frequency band of CRS according to the size of the frequency band in the configuration information of CRS and frequency domain position; Or, if above-mentioned CRS frequency hopping on specific sub-frame, then the second determination module 9022 according to the frequency band size in the configuration information of CRS and CRS the mode of frequency hopping on specific sub-frame determine the special frequency band of CRS.

After definite above-mentioned specific sub-frame and special frequency band, receivingelement 903 receives the CRS that the base station sends in specific sub-frame and special frequency band.Optionally, if at above-mentioned configuration information indicating the single antenna mouth of CRS, then receivingelement 903 receives the CRS that the base station sends by this single antenna mouth in specific sub-frame and special frequency band.

After receiving the CRS of transmission, measuringunit 904 carries out the measurement of channel information according to the above-mentioned CRS thatreceives.Measuring unit 904 can be known specifically where is it pilot signal in the time slot of CRS by the relevant parameter in the configuration information of CRS, again in conjunction with the relevant informations such as transmitting power of the CRS that receives, just the measurement of channel disturbance noise and channel quality can be carried out, and then just the isoparametric calculating of CSI, RSRP, RSRQ and PL can be carried out.Concrete, carried out the measurement of channel disturbance noise according to above-mentioned CRS by thefirst measurement module 9041; By thesecond measurement module 9042, be used for carrying out the measurement of channel quality according to above-mentioned CRS; By the3rd measurement module 9043, be used for carrying out the measurement of RSRP according to above-mentioned CRS; By the4th measurement module 9044, be used for carrying out the measurement of path loss according to above-mentioned CRS.

The below describes the embodiment of the base station of the present invention of the method for measurement that is used for carrying out above-mentioned channel information, and its logical construction please refer to Figure 10, and the base station embodiment comprises in the embodiment of the invention:

Channels determining unit 1010 is used for specific sub-frame and special frequency band according to the definite CRS of transmission of configuration information of above-mentioned CRS;

Transmittingelement 1020 is used for sending CRS to subscriber equipment on specific sub-frame and special frequency band, so that this subscriber equipment carries out the measurement of channel information according to this CRS.

Optionally, the base station in the embodiment of the invention can further include:

High-rise transmitting element 1030 is used for sending the configuration information of high-level signaling indication CRS to subscriber equipment before signal transmitting unit sends CRS to subscriber equipment;

Or,

Physicallayer transmitting element 1040 is used for sending the configuration information of physical layer signaling indication CRS to subscriber equipment before signal transmitting unit sends CRS to=subscriber equipment.

Optionally, the channels determining unit in the embodiment of theinvention 1010 can comprise:

Subframe determination module 1011 is used for according to the cycle of the configuration information of above-mentioned CRS and the specific sub-frame that CRS is determined in the subframe skew, or determines the specific sub-frame of CRS according to the duration in the configuration information of above-mentioned CRS, cycle and subframe skew;

Frequencyband determination module 1012 has fixing frequency domain position if be used for CRS, and then and frequency domain position big or small according to the frequency band in the configuration information of CRS determined the special frequency band of CRS; Or if CRS frequency hopping on specific sub-frame, then the mode of frequency hopping on specific sub-frame is determined the special frequency band of CRS according to the frequency band size in the configuration information of CRS and CRS.

The concrete reciprocal process of the unit of base station is as follows in the embodiment of the invention:

High-rise transmitting element 1030 sends the configuration information of high-level signaling indication CRS to subscriber equipment; Or physicallayer transmitting element 1040 sends the configuration information that physical layer signaling is indicated CRS to subscriber equipment, receives CRS so that subscriber equipment can be known specifically in which subframe, frequency band and antenna opening.Above-mentioned high-level signaling can be the RRC signaling, also can be MAC layer signaling; Above-mentioned physical layer signaling can be the Physical Downlink Control Channel signaling, also can be other physical layer signalings.This configuration information can include the information of above-mentioned several or whole parameters such as cycle, subframe skew, duration, frequency band size, frequency domain position, antenna opening, specific sub-frame and special frequency band of indication CRS, the content of specific configuration information can be decided according to actual conditions, is not construed as limiting herein.In order further to reduce the expense of pilot tone, the base station end can limit subscriber equipment and receive CRS at the single antenna mouth, then can also include the information of the single antenna mouth of indicating CRS in the above-mentioned configuration information.

After receiving above-mentioned configuration information, channels determining unit 1010 is determined respectively specific sub-frame and the special band frequency band of CRS according to the configuration information of CRS.Concrete, subframe determination module 1011 by channels determining unit 1010 is determined the specific sub-frame of CRS according to the cycle in the configuration information of above-mentioned CRS and subframe skew, or determines the specific sub-frame of CRS according to the duration in the configuration information of above-mentioned CRS, cycle and subframe skew; Determined the special frequency band of CRS according to the size of the frequency band in the configuration information of above-mentioned CRS and frequency domain position by the frequency band determination module 1012 of channels determining unit 1010, or determine the special frequency band of CRS specifically following frequency-hopping mode can be arranged: frequency-hopping mode 1: in band system band, be cycled to repeat transmission take the frequency band size as diameter according to the mode of the frequency band in the configuration information of above-mentioned CRS size and the frequency hopping of CRS on specific sub-frame.At this moment, the frequency band position of initial subframe can be the center of band system band, also can be for being numbered 0 Resource Block in the carrier system bandwidth that sends CRS.The frequency band position of initial subframe can agreement be stipulated, also can be notified by high-level signaling; Frequency-hopping mode 2: utilize the position of pseudo random sequence in band system band to produce special frequency band, CRS sends at this special frequency band.This pseudo random sequence can be determined by cell ID (cell ID, or title carrier identification) and the subframe numbers of specific sub-frame.

Need to prove that the skew of the cycle of the CRS in this step and subframe can be that the configuration information according to the CRS in the step 501 obtains; In addition, the configuration information equipment for indicating user of CRS can not passed through in the duration base station of this CRS.

After definite above-mentioned specific sub-frame and special frequency band, transmittingelement 1020 these specific sub-frame and special frequency band send CRS to subscriber equipment, so that subscriber equipment can carry out according to this CRS the measurement of channel information.Optionally, in order further to reduce the expense of pilot tone, the base station end can be chosen in the transmission of carrying out CRS on the spatial domain of single antenna mouth.

The below describes the embodiment of the subscriber equipment of the present invention of the method for measurement that is used for carrying out above-mentioned another kind of channel information, and its logical construction please refer to Figure 11, and another embodiment of subscriber equipment comprises in the embodiment of the invention:

Configuration receiving element 1110, for the configuration information of the CSI-RS that receives the base station transmission, CSI-RS comprises: a CSI-RS and the 2nd CSI-RS; The 2nd CSI-RS does not carry out PDSCH in base station corresponding to non-service cell when sending and mourns in silence;

Subframe determining unit 1120 is for the specific sub-frame of determining a CSI-RS and the 2nd CSI-RS according to the configuration information of above-mentioned CSI-RS;

Referencesignal receiving element 1130, be used for receiving the CSI-RS that the base station sends at specific sub-frame and the Whole frequency band of a CSI-RS, and receive the 2nd CSI-RS that the base station sends in the specific sub-frame of the 2nd CSI-RS and specific sub-frame and the special frequency band of Whole frequency band or the 2nd CSI-RS;

Channel measurement unit 1140 is used for carrying out the measurement of channel information according to the configuration information of an above-mentioned CSI-RS and/or the 2nd CSI-RS.

Optionally, the subscriber equipment in the embodiment of the invention can further include:

Frequencyband determining unit 1150 is used for determining the special frequency band of the 2nd CSI-RS according to the special frequency band information that preset this locality, or determines the special frequency band of the 2nd CSI-RS according to the configuration information of CSI-RS.

The concrete reciprocal process of the unit of subscriber equipment is as follows in the embodiment of the invention:

Configuration receiving element 1110 receives the configuration information of the CSI-RS of base station transmission, concrete, can receive by high-level signaling, also can receive by physical layer signaling, concrete which kind of signaling of using receives and can decide according to actual conditions, is not construed as limiting herein.This CSI-RS includes: a CSI-RS and the 2nd CSI-RS.

When the base station that the Serving cell of this subscriber equipment is corresponding sent an above-mentioned CSI-RS, the base station that non-service cell is corresponding was carried out PDSCH and is mourned in silence, and also can not carry out PDSCH and mourn in silence, and a CSI-RS sends with the non-zero transmitting power on Whole frequency band; And base station corresponding to the Serving cell of this subscriber equipment be when sending above-mentioned the 2nd CSI-RS, and the base station that non-service cell is corresponding is not carried out PDSCH and mourned in silence, and the 2nd CSI-RS specifically can send at special frequency band, also can send at Whole frequency band.The downstream transmission bandwidth of the descending carrier that above-mentioned Whole frequency band assignment is put for example can be used

The downstream transmission bandwidth that represents the descending carrier of this configuration.The additional carrier that the descending carrier of this configuration can assignment be put.In addition, if the descending carrier of this configuration is comprised of a backward compatibility carrier wave and carrier wave fragment, then the Whole frequency band of the descending carrier of this configuration can only refer to the downstream transmission bandwidth of backward compatibility carrier wave, also can refer to the downstream transmission bandwidth that backward compatibility carrier wave and carrier wave fragment are combined.Under the carrier wave party scene, the descending carrier of this configuration can be for disposing to one in the descending carrier of this subscriber equipment.

The configuration information of CSI-RS can comprise: the information such as the antenna slogan that a CSI-RS and the 2nd CSI-RS are corresponding, resource distribution index, resource distribution index and sub-frame configuration, and cycle and the subframe skew of this sub-frame configuration indication CSI-RS.The position of the Resource Unit (RE) that the resource distribution index can be used for determining that each antenna opening of CSI-RS is corresponding namely can be used for determining the pattern (Pattern) of CSI-RS.Antenna slogan corresponding to above-mentioned the 2nd CSI-RS can be single antenna number, for example can be antenna opening 15.

After receiving above-mentioned configuration information, subframe determining unit 1120 is obtained cycle and the subframe skew of cycle of a CSI-RS and subframe skew and the 2nd CSI-RS from the configuration information of above-mentioned CSI-RS, and according to cycle and the cycle of subframe skew and the 2nd CSI-RS and the specific sub-frame that subframe is offset a definite CSI-RS and the 2nd CSI-RS of a CSI-RS.Determine according to cycle of CSI-RS and subframe skew CSI-RS specific sub-frame method can for: from the configuration information of above-mentioned CSI-RS, obtain cycle and the subframe skew of CSI-RS, with the cycle T of this CSI-RS_CSI-RSWith the subframe shifted by delta_CSI-RSSubstitution formula two, formula two is specially:

According to radio frame number n_fAnd the timeslot number n in the radio frames_sDifferent values determine respectively the specific sub-frame of a CSI-RS and the 2nd CSI-RS.Above-mentioned radio frame number n_fBe nonnegative integer, radio frame number n_fBy 0 open numbering, a radio frames has 10 subframes, and each subframe has 2 time slots, so the timeslot number n in the radio frames_sSpan can be 0 to 19.Therefore, the cycle of CRS and subframe skew can have many cover candidate values, corresponding corresponding cycle of every cover candidate value and subframe skew, every cover candidate value can call numbers of correspondence, and this call number can be described as the sub-frame configuration call number of this cell special reference.The value of cycle and subframe skew can be chosen according to actual conditions in the base station, and should the cycle and sub-frame configuration call number notice subframe determining unit 1120 corresponding to subframe skew, so that subframe determining unit 1120 is determined the subframe that cell reference signals sends according to this call number, and should the cycle and sub-frame configuration call number corresponding to subframe skew can indicate by the subframe configuration information in the configuration information of CSI-RS.。In addition, subframe determining unit 1120 can also be determined specific sub-frame in conjunction with this duration, is namely determined to send the subframe of cell special reference by cycle, subframe skew and the duration of CSI-RS.The value of this duration can be infinity, also can be a fixing value.Subscriber equipment can be determined according to actual conditions the value of duration, thereby can not need to send the transmission of closing CSI-RS in the time period of CSI-RS, further reduces the expense of CSI-RS, saves the energy that sends CSI-RS.

Optionally, if the 2nd CSI-RS need to send at special frequency band, frequencyband determining unit 1150 is used for determining the special frequency band of the 2nd CSI-RS according to the special frequency band information that preset this locality, or determines the special frequency band of the 2nd CSI-RS according to the configuration information of CSI-RS.This frequency band position can be the fixed position of frequency band in system bandwidth, also can be the position (being frequency hopping) of frequency band rule saltus step in system bandwidth.

In the specific sub-frame of determining a CSI-RS and the 2nd CSI-RS, and behind the special frequency band of the 2nd CSI-RS, referencesignal receiving element 1130 receives the CSI-RS that the base station sends at specific sub-frame and the Whole frequency band of a CSI-RS, and signal receivingunit 1140 receives the 2nd CSI-RS that the base station sends at specific sub-frame and the corresponding frequency band (Whole frequency band or special frequency band) of the 2nd CSI-RS; Optionally, referencesignal receiving element 1130 can determine receive according to above-mentioned configuration information the single antenna mouth of the 2nd CSI-RS, again by this single antenna mouth this and specific sub-frame and the special frequency band of CSI-RS receive the 2nd CSI-RS that the base station sends.

After receiving an above-mentioned CSI-RS and the 2nd CSI-RS,channel measurement unit 1140 is carried out the measurement of channel information according to the configuration information of an above-mentioned CSI-RS and/or the 2nd CSI-RS; This channel information is specifically as follows channel disturbance noise, channel quality or the relevant parameters of channel statuss such as further CSI, RSRP, RSRQ and PL.After the measurement result that obtains channel quality and channel disturbance noise,channel measurement unit 1140 just can be carried out the isoparametric calculating of CSI, RSRP, RSRQ and PL.

The below describes the embodiment of the base station of the present invention of the method for measurement that is used for carrying out above-mentioned another kind of channel information, and its logical construction please refer to Figure 12, and another embodiment of base station comprises in the embodiment of the invention:

Configuration transmitting element 1210 is used for to the configuration information of subscriber equipment transmission CSI-RS, and CSI-RS comprises: a CSI-RS and the 2nd CSI-RS; The 2nd CSI-RS does not carry out PDSCH in base station corresponding to non-service cell when sending and mourns in silence;

Specificsub-frame determining unit 1220 is for the specific sub-frame of determining a CSI-RS and the 2nd CSI-RS according to the configuration information of above-mentioned CSI-RS;

Referencesignal transmitting element 1230, be used on the specific sub-frame of a CSI-RS and Whole frequency band, sending a CSI-RS to subscriber equipment, and the specific sub-frame of the 2nd CSI-RS and and the specific sub-frame special frequency band of Whole frequency band or the 2nd CSI-RS on send the 2nd CSI-RS to subscriber equipment so that subscriber equipment carries out respectively the measurement of channel information according to a CSI-RS and/or the 2nd CSI-RS.

Optionally, the referencesignal transmitting element 1230 in the embodiment of the invention can comprise:

Non-zero sending module 1231, be used for to use the non-zero transmitting power to send a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band,non-zero sending module 1231 uses the non-zero transmitting powers to send the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band;

Or,

Zerosending module 1232, be used for to use the non-zero transmitting power to send a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band, zero sending module 123 uses zero transmitting power to send the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band.

The concrete reciprocal process of the unit of base station is as follows in the embodiment of the invention:

Configuration transmitting element 1210 sends the configuration information of CSI-RS to subscriber equipment, concrete, configuration transmitting element 1210 can send by high-level signaling, also can send by physical layer signaling, concrete which kind of signaling of using sends and can decide according to actual conditions, is not construed as limiting herein.This CSI-RS includes: a CSI-RS and the 2nd CSI-RS.

When the base station that the Serving cell of this subscriber equipment is corresponding sent an above-mentioned CSI-RS, the base station that non-service cell is corresponding was carried out PDSCH and is mourned in silence, and also can not carry out PDSCH and mourn in silence, and a CSI-RS sends with the non-zero transmitting power on Whole frequency band; And base station corresponding to the Serving cell of this subscriber equipment be when sending above-mentioned the 2nd CSI-RS, and the base station that non-service cell is corresponding is not carried out PDSCH and mourned in silence, and the 2nd CSI-RS specifically can send at special frequency band, also can send at Whole frequency band.The downstream transmission bandwidth of the descending carrier that above-mentioned Whole frequency band assignment is put for example can be used

The downstream transmission bandwidth that represents the descending carrier of this configuration.The additional carrier that the descending carrier of this configuration can assignment be put.In addition, if the descending carrier of this configuration is comprised of a backward compatibility carrier wave and carrier wave fragment, then the Whole frequency band of the descending carrier of this configuration can only refer to the downstream transmission bandwidth of backward compatibility carrier wave, also can refer to the downstream transmission bandwidth that backward compatibility carrier wave and carrier wave fragment are combined.Under the carrier wave party scene, the descending carrier of this configuration can be for disposing to one in the descending carrier of this subscriber equipment.

The configuration information of CSI-RS can comprise: the information such as the antenna slogan that a CSI-RS and the 2nd CSI-RS are corresponding, resource distribution index, resource distribution index and sub-frame configuration, and cycle and the subframe skew of this sub-frame configuration indication CSI-RS.The position of the Resource Unit (RE) that the resource distribution index can be used for determining that each antenna opening of CSI-RS is corresponding namely can be used for determining the pattern (Pattern) of CSI-RS.Antenna slogan corresponding to above-mentioned the 2nd CSI-RS can be single antenna number, for example can be antenna opening 15.

Specificsub-frame determining unit 1220 is determined the specific sub-frame of a CSI-RS and the 2nd CSI-RS according to the configuration information of CSI-RS; The concrete specific sub-frame of determining respectively a CSI-RS and the 2nd CSI-RS according to the configuration information of CSI-RS; Wherein, a CSI-RS determines that with the 2nd CSI-RS the method for specific sub-frame can be different, and namely the specific sub-frame of a CSI-RS and the 2nd CSI-RS also can be different.

In the specific sub-frame of determining a CSI-RS and the 2nd CSI-RS, referencesignal transmitting element 1230, be used on the specific sub-frame of a CSI-RS and Whole frequency band, sending a CSI-RS to subscriber equipment, and the specific sub-frame of the 2nd CSI-RS and and the specific sub-frame special frequency band of Whole frequency band or the 2nd CSI-RS on the 2nd CSI-RS that sends to subscriber equipment so that subscriber equipment carries out respectively the measurement of channel information according to a CSI-RS and/or the 2nd CSI-RS.

Optionally, specifically use the non-zero transmitting powers to send a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band bynon-zero sending module 1231,non-zero sending module 1231 uses the non-zero transmitting powers to send the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band; Or, use the non-zero transmitting powers to send a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band by zerosending module 1232, zerosending module 1232 uses zero transmitting power to send the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band.

The below describes the embodiment of the measuring system of the channel information of the present invention of the method for measurement that is used for carrying out above-mentioned channel information, and its logical construction please refer to Figure 13, and the measuring system of channel information embodiment comprises in the embodiment of the invention:

Base station 1301 and subscriber equipment 1302;

The base station is used for specific sub-frame and special frequency band according to the definite CRS of transmission of configuration information of CRS; On specific sub-frame and special frequency band, send CRS to subscriber equipment, so that subscriber equipment is measured according to CRS;

Subscriber equipment is for the configuration information that obtains cell specific reference signal CRS; Determine to receive specific sub-frame and the special frequency band of CRS according to the configuration information of CRS; Receive the CRS that the base station sends in specific sub-frame and special frequency band; Carry out the measurement of channel information according to CRS.

The below describes the embodiment of the measuring system of the channel information of the present invention of the method for measurement that is used for carrying out above-mentioned another kind of channel information, its logical construction please refer to Figure 13 equally, and another embodiment of the measuring system of channel information comprises in the embodiment of the invention:

Base station 1301 and subscriber equipment 1302;

Base station 1301 is used for to the configuration information of subscriber equipment 1302 transmission CSI-RS, and CSI-RS comprises: a CSI-RS and the 2nd CSI-RS; The 2nd CSI-RS does not carry out PDSCH in base station 1301 corresponding to non-service cell when sending and mourns in silence; Determine the specific sub-frame of a CSI-RS and the 2nd CSI-RS according to the configuration information of CSI-RS; On the specific sub-frame of a CSI-RS and Whole frequency band, send a CSI-RS to subscriber equipment 1302, on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band, send the 2nd CSI-RS to subscriber equipment 1302, so that subscriber equipment 1302 carries out the measurement of channel information according to a CSI-RS and/or the 2nd CSI-RS;

Subscriber equipment 1302 is for the configuration information of the CSI-RS that receives base station 1301 transmissions; Determine the specific sub-frame of a CSI-RS and the 2nd CSI-RS according to the configuration information of CSI-RS; Specific sub-frame and Whole frequency band at a CSI-RS receive the CSI-RS that base station 1301 sends, and subscriber equipment 1302 receives the 2nd CSI-RS that base station 1301 sends in the specific sub-frame of the 2nd CSI-RS and specific sub-frame and the special frequency band of Whole frequency band or the 2nd CSI-RS; Carry out the measurement of channel information according to a CSI-RS and/or the 2nd CSI-RS.

The those skilled in the art can be well understood to, and is the convenience described and succinct, the system of foregoing description, and the specific works process of device and unit can with reference to the corresponding process among the preceding method embodiment, not repeat them here.

In several embodiment that the application provides, should be understood that, disclosed system, apparatus and method can realize by another way.For example, device embodiment described above only is schematic, for example, the division of described unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, the shown or coupling each other discussed or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.

Described unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of present embodiment scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics of unit exists, and also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.

If described integrated unit is realized with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding, part or all or part of of this technical scheme that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), the various media that can be program code stored such as random access memory (RAM, Random Access Memory), magnetic disc or CD.

The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.

Claims (36)

1. the method for measurement of a channel information is characterized in that, comprising:

Subscriber equipment obtains the configuration information of cell specific reference signal CRS;

Subscriber equipment determines to receive specific sub-frame and the special frequency band of described CRS according to the configuration information of described CRS;

Subscriber equipment receives the CRS that the base station sends in described specific sub-frame and described special frequency band;

Subscriber equipment carries out the measurement of channel information according to described CRS.

2. method according to claim 1 is characterized in that, described subscriber equipment obtains the configuration information of cell specific reference signal CRS, comprising:

Subscriber equipment obtains the configuration information of the CRS of base station transmission by receiving high-level signaling;

Or,

Subscriber equipment obtains the configuration information of the CRS of base station transmission by receiving physical layer signaling;

Or,

Subscriber equipment obtains the configuration information of CRS in the configuration information that preset this locality.

3. method according to claim 1 is characterized in that, described CRS has fixing frequency domain position, then comprises the information of cycle, subframe skew, frequency band size and the frequency domain position of indicating CRS in the configuration information of described CRS;

Described subscriber equipment comprises according to definite specific sub-frame and the special frequency band that receives described CRS of the configuration information of described CRS:

The specific sub-frame that subscriber equipment is determined described CRS according to cycle and the subframe skew of described CRS;

The special frequency band that subscriber equipment is determined described CRS according to frequency band size and the frequency domain position of described CRS;

Perhaps described CRS frequency hopping on specific sub-frame comprises in the configuration information of described CRS that then cycle, the subframe of indicating CRS are offset, the information of frequency band size;

Described subscriber equipment comprises according to definite specific sub-frame and the special frequency band that receives described CRS of the configuration information of described CRS:

The specific sub-frame that subscriber equipment is determined described CRS according to cycle and the subframe skew of described CRS;

The special frequency band that subscriber equipment is determined described CRS according to frequency band size and the described CRS mode of frequency hopping on specific sub-frame of described CRS.

4. method according to claim 3 is characterized in that,

Also comprise the information of indicating the CRS duration in the configuration information of described CRS;

The specific sub-frame that described subscriber equipment is determined described CRS according to cycle and the subframe skew of described CRS comprises:

Subscriber equipment is determined the specific sub-frame of described CRS according to cycle, subframe skew and the duration of described CRS;

And/or,

Also comprise the information of indicating described CRS respective antenna mouth in the configuration information of described CRS, described CRS respective antenna mouth is the single antenna mouth.

5. method according to claim 3 is characterized in that, the specific sub-frame that described subscriber equipment is determined described CRS according to cycle and the subframe skew of described CRS comprises:

Cycle T with described CRS_CRSWith the subframe shifted by delta_CRSSubstitution formula one, described formula one is:

According to radio frame number n_fAnd the timeslot number n in the radio frames_sDifferent values determine the specific sub-frame of described CRS, described radio frame number n_fBe nonnegative integer; Described timeslot number n_sSpan be 0 to 19.

6. method according to claim 1 and 2 is characterized in that, described subscriber equipment comprises according to the measurement that described CRS carries out channel information:

Described subscriber equipment carries out the measurement of channel disturbance noise according to described CRS;

Or,

Described subscriber equipment carries out the measurement of channel condition information CSI according to described CRS;

Or,

Described subscriber equipment carries out the measurement of Reference Signal Received Power RSRP according to described CRS;

Or,

Described subscriber equipment carries out the measurement of path loss according to described CRS.

7. the method for measurement of a channel information is characterized in that, comprising:

Specific sub-frame and the special frequency band of described CRS determined to send in the base station according to the configuration information of CRS;

The base station sends CRS to subscriber equipment on described specific sub-frame and described special frequency band, so that described subscriber equipment is measured according to described CRS.

8. method according to claim 7 is characterized in that, described base station is determined to send before the specific sub-frame and special frequency band of described CRS according to the configuration information of CRS, comprising:

The base station sends the configuration information of high-level signaling indication CRS to subscriber equipment;

Or,

The base station sends the configuration information of physical layer signaling indication CRS to subscriber equipment.

9. according to claim 7 or 8 described methods, it is characterized in that described CRS has fixing frequency domain position, then comprise the information of cycle, subframe skew, frequency band size and the frequency domain position of indicating CRS in the configuration information of described CRS;

Described base station comprises according to definite specific sub-frame and the special frequency band that receives described CRS of the configuration information of CRS:

The specific sub-frame that described CRS is determined according to cycle and the subframe skew of described CRS in the base station;

The special frequency band that described CRS is determined according to frequency band size and the frequency domain position of described CRS in the base station;

Perhaps described CRS frequency hopping on specific sub-frame comprises in the configuration information of described CRS that then cycle, the subframe of indicating CRS are offset, the information of frequency band size;

Described base station comprises according to definite specific sub-frame and the special frequency band that receives described CRS of the configuration information of CRS:

The specific sub-frame that described CRS is determined according to cycle and the subframe skew of described CRS in the base station;

The special frequency band that described CRS is determined according to frequency band size and the described CRS mode of frequency hopping on specific sub-frame of described CRS in the base station.

10. method according to claim 9 is characterized in that,

The information that also comprises the duration of indicating CRS in the configuration information of described CRS;

The specific sub-frame that described CRS is determined according to cycle and the subframe skew of described CRS in described base station comprises:

The specific sub-frame of described CRS is determined in the base station according to cycle, subframe skew and the duration of described CRS;

And/or, also comprise the information of indicating described CRS respective antenna mouth in the configuration information of described CRS;

The antenna opening that described CRS is corresponding is the single antenna mouth, and described single antenna mouth is to consult to obtain by X2 interface between each base station.

11. method according to claim 9 is characterized in that, the specific sub-frame that described CRS is determined according to cycle and the subframe skew of described CRS in described base station comprises:

Cycle T with described CRS_CRSWith the subframe shifted by delta_CRSSubstitution formula one, described formula one is:

According to radio frame number n_fAnd the timeslot number n in the radio frames_sDifferent values determine the specific sub-frame of described CRS, described radio frame number n_fBe nonnegative integer; Described timeslot number n_sSpan be 0 to 19.

12. the method for measurement of a channel information is characterized in that, comprising:

Subscriber equipment receives the configuration information of the channel state information reference signals CSI-RS of base station transmission, and described CSI-RS comprises: a CSI-RS and the 2nd CSI-RS;

Subscriber equipment determines to receive the specific sub-frame of a described CSI-RS and the 2nd CSI-RS according to the configuration information of described CSI-RS;

Subscriber equipment receives the CSI-RS that the base station sends at specific sub-frame and the Whole frequency band of a CSI-RS, and subscriber equipment receives the 2nd CSI-RS that the base station sends in the specific sub-frame of the 2nd CSI-RS and specific sub-frame and the special frequency band of Whole frequency band or the 2nd CSI-RS;

Subscriber equipment carries out the measurement of channel information according to a described CSI-RS and/or described the 2nd CSI-RS.

13. method according to claim 12 is characterized in that, described the 2nd CSI-RS does not carry out PDSCH in base station corresponding to non-service cell when sending and mourns in silence.

14. method according to claim 12 is characterized in that, described subscriber equipment receives the configuration information of the CSI-RS of base station transmission, comprising:

Subscriber equipment obtains the configuration information of CSI-RS by the high-level signaling that receives the base station transmission;

Or,

Subscriber equipment obtains the configuration information of CSI-RS by the physical layer signaling that receives the base station transmission.

15. method according to claim 12 is characterized in that,

Comprise indication the one CSI-RS and the 2nd CSI-RS information corresponding, cycle and subframe skew in the configuration information of described CSI-RS;

Described subscriber equipment is determined to comprise the specific sub-frame of a described CSI-RS and the 2nd CSI-RS according to the configuration information of described CSI-RS:

Subscriber equipment is offset the specific sub-frame of determining a described CSI-RS and the 2nd CSI-RS according to a CSI-RS and corresponding cycle and the subframe of the 2nd CSI-RS respectively;

The information that perhaps further comprises the marker antenna mouth in the configuration information of described CSI-RS;

The antenna opening that described the 2nd CSI-RS is corresponding is the single antenna mouth.

16. to the described method of 15 any one, it is characterized in that according to claim 12 described subscriber equipment comprised before the specific sub-frame of the 2nd CSI-RS and special frequency band receive the 2nd CSI-RS that the base station sends:

The special frequency band information that subscriber equipment presets according to this locality is determined the special frequency band of described the 2nd CSI-RS;

Or,

Subscriber equipment is determined the special frequency band of described the 2nd CSI-RS according to the configuration information of described CSI-RS.

17. method according to claim 16 is characterized in that,

The special frequency band of described the 2nd CSI-RS has fixing frequency band position, and then described subscriber equipment is determined to comprise the special frequency band of described the 2nd CSI-RS according to the configuration information of described CSI-RS:

Subscriber equipment extracts frequency band size and the frequency domain position of the 2nd CSI-RS from the configuration information of described CSI-RS, determine the special frequency band of described the 2nd CSI-RS according to the frequency band of described the 2nd CSI-RS size and frequency domain position;

Perhaps described the 2nd CSI-RS frequency hopping on specific sub-frame, then described subscriber equipment is determined to comprise the special frequency band of described the 2nd CSI-RS according to the configuration information of described CSI-RS:

Subscriber equipment extracts the frequency band size of the 2nd CSI-RS from the configuration information of described CSI-RS, the special frequency band of determining described the 2nd CSI-RS according to frequency band size and described the 2nd CSI-RS mode of frequency hopping on specific sub-frame of described the 2nd CSI-RS.

18. method according to claim 12 is characterized in that, described the 2nd CSI-RS is non-zero transmitting power CSI-RS, and then subscriber equipment carries out the measurement of channel information according to a described CSI-RS and/or described the 2nd CSI-RS, comprising:

Subscriber equipment carries out the measurement of channel disturbance noise according to a described CSI-RS and described the 2nd CSI-RS;

Or,

Subscriber equipment carries out the measurement of channel disturbance noise according to described the 2nd CSI-RS;

Or,

Subscriber equipment carries out channel quality and channel disturbance noise testing according to a described CSI-RS and described the 2nd CSI-RS, according to described channel quality and channel disturbance noise calculation CSI;

Or,

Subscriber equipment carries out Reference Signal Received Power RSRP according to a described CSI-RS and measures;

Or,

Subscriber equipment carries out path loss according to a described CSI-RS and measures;

Perhaps described the 2nd CSI-RS is zero transmitting power CSI-RS, and then subscriber equipment carries out the measurement of channel information according to a described CSI-RS and/or described the 2nd CSI-RS, comprising:

Subscriber equipment carries out the measurement of channel disturbance noise according to described the 2nd CSI-RS;

Or,

Subscriber equipment carries out channel quality measurement according to a described CSI-RS, carries out the measurement of channel disturbance noise according to described the 2nd CSI-RS, according to described channel quality and channel disturbance noise calculation CSI;

Or,

Subscriber equipment carries out path loss according to a described CSI-RS and measures.

19. method according to claim 18 is characterized in that, described subscriber equipment carries out path loss according to a described CSI-RS to be measured, and is specially:

Subscriber equipment obtains the transmitting power of a described CSI-RS;

Transmitting power and a described CSI-RS according to a described CSI-RS carry out the path loss measurement.

20. method according to claim 19 is characterized in that, described subscriber equipment obtains the transmitting power of a described CSI-RS, comprising:

Subscriber equipment obtains the transmitting power of a described CSI-RS by high-level signaling.

21. the method for measurement of a channel information is characterized in that, comprising:

The base station is to the configuration information of subscriber equipment transmission CSI-RS, and described CSI-RS comprises: a CSI-RS and the 2nd CSI-RS;

The specific sub-frame of a described CSI-RS and the 2nd CSI-RS is determined in the base station according to the configuration information of described CSI-RS;

The base station sends a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band, the base station sends the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band, so that subscriber equipment carries out the measurement of channel information according to a described CSI-RS and/or the 2nd CSI-RS.

22. method according to claim 21 is characterized in that, described the 2nd CSI-RS does not carry out PDSCH in base station corresponding to non-service cell when sending and mourns in silence.

23. method according to claim 21 is characterized in that, described base station comprises to the configuration information of subscriber equipment transmission CSI-RS:

The base station sends the configuration information of high-level signaling indication CSI-RS to subscriber equipment;

Or,

The base station sends the configuration information of physical layer signaling indication CSI-RS to subscriber equipment.

24. method according to claim 21 is characterized in that, comprises the information of antenna opening corresponding to indication the one CSI-RS and the 2nd CSI-RS, resource distribution index, cycle and subframe skew in the configuration information of described CSI-RS;

Described base station is determined to comprise the specific sub-frame of a described CSI-RS and the 2nd CSI-RS according to the configuration information of described CSI-RS:

The base station is offset the specific sub-frame of determining a described CSI-RS and the 2nd CSI-RS according to a CSI-RS and corresponding cycle and the subframe of the 2nd CSI-RS respectively.

25. according to claim 21 to the described method of 24 any one, it is characterized in that, described base station sends a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band, the base station sends the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band, comprising:

The base station uses the non-zero transmitting power to send a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band, and the base station uses the non-zero transmitting power to send the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band;

Or,

The base station uses the non-zero transmitting power to send a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band, and the base station uses zero transmitting power to send the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band.

26. a subscriber equipment is characterized in that, comprising:

Acquiring unit is for the configuration information that obtains cell specific reference signal CRS;

Determining unit is used for specific sub-frame and special frequency band according to the definite described CRS of reception of configuration information of described CRS;

Receiving element is used for receiving the CRS that the base station sends in described specific sub-frame and described special frequency band;

Measuring unit is used for carrying out the measurement of channel information according to described CRS.

27. subscriber equipment according to claim 26 is characterized in that, described acquiring unit comprises:

The first acquisition module is for the configuration information that obtains the CRS of base station transmission by receiving high-level signaling;

Or,

The second acquisition module is for the configuration information that obtains the CRS of base station transmission by receiving physical layer signaling;

Or,

The 3rd acquisition module, the configuration information that is used for presetting in this locality obtains the configuration information of CRS.

28. subscriber equipment according to claim 31 is characterized in that, described determining unit comprises:

The first determination module is used for determining the specific sub-frame of described CRS according to the cycle of the configuration information indicating of CRS and the information of subframe skew, or determines the specific sub-frame of CRS according to the duration in the configuration information of above-mentioned CRS, cycle and subframe skew;

The second determination module is used for determining according to the information of the frequency band size of the configuration information indicating of the CRS with fixing frequency domain position and frequency domain position the special frequency band of described CRS; Or, be used for basis at the information of the frequency band size of the configuration information indicating of the CRS of frequency hopping on the specific sub-frame and the special frequency band that described CRS mode of frequency hopping on specific sub-frame is determined described CRS.

29. to the described subscriber equipment of 28 any one, it is characterized in that according to claim 26 described measuring unit comprises:

The first measurement module is used for carrying out the measurement of channel disturbance noise according to described CRS;

Or,

The second measurement module is used for carrying out the measurement of channel condition information CSI according to described CRS;

Or,

The 3rd measurement module is used for carrying out the measurement of RSRP according to described CRS;

Or,

The 4th measurement module is used for carrying out the measurement of path loss according to described CRS.

30. a base station is characterized in that, comprising:

Channels determining unit is used for specific sub-frame and special frequency band according to the definite described CRS of transmission of configuration information of CRS;

Signal transmitting unit is used for sending CRS to subscriber equipment on described specific sub-frame and described special frequency band, so that described subscriber equipment is measured according to described CRS.

31. base station according to claim 30 is characterized in that, described base station also comprises:

High-rise transmitting element is used for sending the configuration information of high-level signaling indication CRS to subscriber equipment before signal transmitting unit sends CRS to described subscriber equipment;

Or,

The physical layer transmitting element is used for sending the configuration information of physical layer signaling indication CRS to subscriber equipment before signal transmitting unit sends CRS to described subscriber equipment.

32. base station according to claim 30 is characterized in that, described channels determining unit comprises:

The subframe determination module is used for determining the specific sub-frame of described CRS according to the cycle of the configuration information indicating of CRS and the information of subframe skew, or determines the specific sub-frame of CRS according to the duration in the configuration information of CRS, cycle and subframe skew;

The frequency band determination module is used for determining according to the information of the frequency band size of the configuration information indicating of the CRS with fixing frequency domain position and frequency domain position the special frequency band of described CRS; Or, be used for basis at the information of the frequency band size of the configuration information indicating of the CRS of frequency hopping on the specific sub-frame and the special frequency band that described CRS mode of frequency hopping on specific sub-frame is determined described CRS.

33. a subscriber equipment is characterized in that, comprising:

The configuration receiving element, for the configuration information of the CSI-RS that receives the base station transmission, described CSI-RS comprises: a CSI-RS and the 2nd CSI-RS;

The subframe determining unit is for the specific sub-frame of determining a described CSI-RS and the 2nd CSI-RS according to the configuration information of described CSI-RS;

The reference signal receiving element, be used for receiving the CSI-RS that the base station sends at specific sub-frame and the Whole frequency band of a CSI-RS, receive the 2nd CSI-RS that the base station sends in the specific sub-frame of the 2nd CSI-RS and specific sub-frame and the special frequency band of Whole frequency band or the 2nd CSI-RS;

Channel measurement unit is used for carrying out the measurement of channel information according to a described CSI-RS and/or described the 2nd CSI-RS.

34. subscriber equipment according to claim 33 is characterized in that, described subscriber equipment also comprises:

The frequency band determining unit is used for determining the special frequency band of described the 2nd CSI-RS according to the special frequency band information that preset this locality, or determines the special frequency band of described the 2nd CSI-RS according to the configuration information of described CSI-RS.

35. a base station is characterized in that, comprising:

The configuration transmitting element is used for to the configuration information of subscriber equipment transmission CSI-RS, and described CSI-RS comprises: a CSI-RS and the 2nd CSI-RS;

The specific sub-frame determining unit is for the specific sub-frame of determining a described CSI-RS and the 2nd CSI-RS according to the configuration information of described CSI-RS;

The reference signal transmitting element, be used on the specific sub-frame of a CSI-RS and Whole frequency band, sending a CSI-RS to subscriber equipment, the base station sends the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band, so that subscriber equipment carries out the measurement of channel information according to a described CSI-RS and/or the 2nd CSI-RS.

36. base station according to claim 35 is characterized in that, described reference signal transmitting element comprises:

The non-zero sending module, be used for to use the non-zero transmitting power to send a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band, the base station uses the non-zero transmitting power to send the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band;

Or,

Zero sending module, be used for to use the non-zero transmitting power to send a CSI-RS to subscriber equipment on the specific sub-frame of a CSI-RS and Whole frequency band, the base station uses zero transmitting power to send the 2nd CSI-RS to subscriber equipment on the specific sub-frame of the specific sub-frame of the 2nd CSI-RS and Whole frequency band or the 2nd CSI-RS and special frequency band.

Images