CN101998483A

Movatterモバイル変換

Info

Publication number: CN101998483A
Application number: CN2009101619624A
Authority: CN
Inventors: 李男; 胡臻平
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2009-08-26
Filing date: 2009-09-07
Publication date: 2011-03-30
Anticipated expiration: 2029-09-07
Also published as: CN101998483B

Abstract

The invention discloses a method and a device for configuring measurement time for a home base station. The method comprises the following steps of: determining uplink and downlink time slot proportional configuration information of a system; and configuring measurement time length for measurement for the home base station. The invention can configure the measurement time for the home base station so as to measure an ambient wireless environment.

Description

Be Home eNodeB allocating and measuring time method and device thereof

Technical field

The present invention relates to the mobile communication technology field, especially relate to a kind of for Home eNodeB allocating and measuring time method and device thereof, a kind of for the method in Home eNodeB allocating and measuring cycle and device thereof, a kind ofly be the method and the device thereof of Home eNodeB allocating and measuring time original position.

Background technology

Home eNodeB is a kind of novel base station, mainly is towards family market, the small base station equipment of being bought and being installed by the user.Because disposing, the randomness of Home eNodeB will introduce certain interference, in order to suppress to disturb, improve the performance of system, need dispose certain Measuring Time (Measurement gap) for Home eNodeB, so that wireless environment is on every side regularly detected, to select suitable operating frequency and transmitting power.

In addition, for the TDD system, because the up-downgoing data all are to transmit on identical frequency resource, Network Synchronization will cause macro base station and Home eNodeB if can not well be carried out, and the cross time-slot between the Home eNodeB disturbs (being the base station interference base station), will badly influence the performance of system thus, this shows it is a basic premise of the normal operation of TDD system synchronously, because the restriction of factors such as the deployed environment of Home eNodeB and cost, often be difficult to directly be undertaken synchronously by receiving the GPS positioning system signal, therefore utilize air interface to carry out having become substantially at present synchronously the essential synchronization scenario of TDD Home eNodeB, must utilize certain Measuring Time to go to intercept the macro base station on every side or the down-going synchronous information of Home eNodeB with regard to requiring Home eNodeB and carry out air interface synchronization, broadcast message, pilot frequency information etc.

As fully visible, no matter be to suppress to disturb or carry out Network Synchronization, all need to dispose certain Measuring Time so that wireless environment is on every side measured for Home eNodeB.Yet at present standardization bodies such as 3GPP and Femto forum also as yet not to how for stipulating Home eNodeB allocating and measuring time and measuring period.

Summary of the invention

The embodiment of the invention provides a kind of be Home eNodeB allocating and measuring time method and device thereof, in order to be embodied as the Home eNodeB allocating and measuring time so that wireless environment is on every side measured.

The embodiment of the invention also provide a kind of for the method in Home eNodeB allocating and measuring cycle and device thereof, in order to be embodied as the Home eNodeB allocating and measuring cycle with to around wireless environment measure.

Corresponding, the embodiment of the invention also provides a kind of method and device thereof of Home eNodeB allocating and measuring time original position that be.

The embodiment of the invention provides a kind of Home eNodeB allocating and measuring time method that is, comprising: the uplink and downlink timeslot ratio configuration information of determining system; According to the uplink and downlink timeslot ratio configuration information of determining, dispose the Measuring Time length that is used to measure for Home eNodeB.

Corresponding, the embodiment of the invention also provides a kind of device of Home eNodeB allocating and measuring time that is, comprises the unit of the uplink and downlink timeslot ratio configuration information that is used for definite system; Be used for disposing the unit of the Measuring Time length that is used to measure for Home eNodeB according to the uplink and downlink timeslot ratio configuration information of determining.

The embodiment of the invention also provides a kind of method in Home eNodeB allocating and measuring cycle that is, comprises determining the desired synchronization accuracy information of Home eNodeB, and the crystal oscillator stability information of definite Home eNodeB self; According to synchronization accuracy information and the crystal oscillator stability information determined, dispose the measuring period that is used to measure for Home eNodeB.

Corresponding, the embodiment of the invention also provides a kind of device in Home eNodeB allocating and measuring cycle that is, and it comprises: be used for determining the unit of the desired synchronization accuracy information of Home eNodeB, and the unit that is used for the crystal oscillator stability information of definite Home eNodeB self; Be used for disposing the unit of the measuring period that is used to measure for Home eNodeB according to synchronization accuracy information and the crystal oscillator stability information determined.

The embodiment of the invention also provides a kind of method of Home eNodeB allocating and measuring time original position that is, comprise: be used for Home eNodeB is carried out the downlink reference signal process to be measured that synchronous target BS sends in measurement, successively coherent detection is carried out in the footpath of each reference symbol to be measured in the receive window, obtained the footpath that first surpasses the reference symbol to be measured of detection threshold; The zero-time position of the Measuring Time of Home eNodeB is given in the zero-time position of footpath in receive window of the reference symbol to be measured that detection is obtained as configuration.

Corresponding, the embodiment of the invention also provides a kind of device of Home eNodeB allocating and measuring time original position that is, comprise: be used for being used for Home eNodeB is carried out the downlink reference signal process to be measured that synchronous target BS sends in measurement, successively coherent detection is carried out in the footpath of each reference symbol to be measured in the receive window, obtained the unit in the footpath of first reference symbol to be measured that surpasses detection threshold; The unit of zero-time position of the Measuring Time of Home eNodeB is given in the zero-time position of footpath in receive window that is used for reference symbol to be measured that detection is obtained as configuration.

The embodiment of the invention also provides a kind of method of Home eNodeB allocating and measuring time original position that is, comprise: be used for Home eNodeB is carried out the downlink reference signal process to be measured that synchronous target BS sends in measurement, respectively coherent detection is carried out in the footpath of each reference symbol to be measured in the receive window, obtained the footpath of the highest reference symbol to be measured of testing result; The zero-time position of the Measuring Time of Home eNodeB is given in the zero-time position of footpath in receive window of the reference symbol to be measured that detection is obtained as configuration.

Corresponding, the embodiment of the invention also provides a kind of device of Home eNodeB allocating and measuring time original position that is, comprise: be used for being used for Home eNodeB is carried out the downlink reference signal process to be measured that synchronous target BS sends in measurement, respectively coherent detection is carried out in the footpath of each reference symbol to be measured in the receive window, obtained the unit in the footpath of the highest reference symbol to be measured of testing result; The unit of zero-time position of the Measuring Time of Home eNodeB is given in the zero-time position of footpath in receive window that is used for reference symbol to be measured that detection is obtained as configuration.

The give chapter and verse uplink and downlink timeslot ratio configuration information of system of the embodiment of the invention, be used for Measuring Time length that wireless environment or the environment of eating dishes without rice or wine are measured for Home eNodeB configuration, thereby be embodied as the Home eNodeB allocating and measuring time with to around wireless environment measure, and and then remedy standardization body and how also to formulate blank as yet for the scheme of Home eNodeB allocating and measuring time.In addition the embodiment of the invention provide for the scheme of Home eNodeB allocating and measuring time can guarantee to measure under the situation of quality, save resource overhead, improve the utilance and the systematic function of frequency spectrum resource.

In addition, the embodiment of the invention give chapter and verse the synchronization accuracy information and the crystal oscillator stability information of Home eNodeB, be used for measuring period that wireless environment or the environment of eating dishes without rice or wine are measured for Home eNodeB configuration, thereby be embodied as the Home eNodeB allocating and measuring cycle with to around wireless environment measure, and and then remedy standardization body and how also to formulate blank as yet for the scheme in Home eNodeB allocating and measuring cycle.

Description of drawings

Below in conjunction with each accompanying drawing the specific embodiment of the invention is carried out concrete detailed explanation, wherein in each accompanying drawing:

One of providing for the embodiment of the invention of Fig. 1 is the specific embodiment process chart of Home eNodeB allocating and measuring time span;

Fig. 2 is the schematic diagram of existing TD-LTE frame structure;

Fig. 3 is 7 kinds of time slot ratio configuration schematic diagram in the existing TD-LTE system.

Embodiment

Because, in present 3GPP standard, also do not define the Measuring Time of Home eNodeB and the allocation plan of measuring period, the Measuring Time that existing LTE terminal disposes under connection status is 6ms, the LTE terminal will stop conventional up-downgoing data transmit-receive and handle in measurement period, the descending reference symbol of target BS is measured (in the LTE system, 5ms is a radio half frame length, and then the Measuring Time of 6ms can guarantee can measure effective downstream signal when the FDD terminal is measured the TDD base station under asynchronous situation).Yet the base station is different with terminal, because the base station need be served a plurality of portable terminals simultaneously, if the Measuring Time unreasonable allocation will badly influence the normal use of portable terminal, do not need to carry out switching between system owing to the base station in addition, therefore do not need to dispose long Measuring Time yet, therefore visible definition at present be not suitable for the Measuring Time that disposes Home eNodeB for the Measuring Time of LTE terminal configuration.

In addition for the TDD system, because the up-downgoing data are discontinuous transmission, and uplink and downlink timeslot ratio is adjustable, for the TD-SCDMA system, a 5ms subframe has 5 kinds of up/descending (UL/DL) time slot ratio configurations, promptly 1: 5,2: 4,3: 3,4: 2,5: 1; For the TD-LTE system, a 10ms radio frames has 7 kinds of typical time slot ratio configurations, when Home eNodeB carries out interferometry or synchro measure, only need measure and get final product the downlink reference signal of system, after having finished initial synchronisation, the ascending time slot that there is no need to take Home eNodeB is fully measured, and the ascending time slot that takies Home eNodeB is else if measured and will be increased owing to measure the overhead that is brought.If therefore the general Measuring Time with Home eNodeB is configured to a certain fixed value, will cause the decline of measurement quality or the problems such as waste of ascending time slot, for example if Measuring Time is 5ms, with the meaningless expense of the ascending time slot that brings 20-80%; If Measuring Time is decided to be 2ms, with the information in whole effectively descending time slots that possibly can't receive in the subframe, can cause expense excessive thus, that is to say if the Measuring Time and the uplink and downlink timeslot ratio that dispose for Home eNodeB do not have direct correlation, then after the uplink and downlink timeslot ratio of system changes, then may cause Measuring Time situation not enough or the waste ascending time slot to take place.

At above-mentioned analytic process, the embodiment of the invention proposes a kind of scheme of effective configuration Home eNodeB Measuring Time, can guarantee to measure under the situation of quality, saves resource overhead, improves the utilance and the systematic function of frequency spectrum resource.

Wherein the realization principle for the scheme of Home eNodeB allocating and measuring time that proposes of the embodiment of the invention is: the uplink and downlink timeslot ratio configuration information of at first determining system, particularly can be by intercepting the system information that is used for Home eNodeB is carried out synchronous target BS (macro base station or Home eNodeB can) broadcasting, and from the system information that listens to, parse the uplink and downlink timeslot ratio configuration information of system, thereby determine the uplink and downlink timeslot ratio configuration information of system; And, come to be used for Measuring Time length that wireless environment or the environment of eating dishes without rice or wine are measured for Home eNodeB configuration according to the uplink and downlink timeslot ratio configuration information of determining.

Further,, come for Home eNodeB configuration is used for Measuring Time length that wireless environment or the environment of eating dishes without rice or wine are measured according to the uplink and downlink timeslot ratio configuration information of determining, can but be not limited to following three kinds of concrete implementations:

First kind of mode: the minimum reference symbol number that at first is defined as reaching the required measurement of the desired precision of synchronized algorithm that Home eNodeB adopts, again according to the above-mentioned uplink and downlink timeslot ratio configuration information of determining, determine the descending time slot number or the descending sub frame number that in a radio frames, comprise and the reference symbol number that can be used in measurement that comprises respectively in each descending time slot or the descending sub frame; And then according to above-mentioned definite minimum reference symbol number, and descending time slot that in a radio frames, comprises or descending sub frame number, and the reference symbol number that can be used in measurement that comprises respectively in each descending time slot or the descending sub frame, be defined as reaching the continuous descending time slot or the descending sub frame number of the required measurement of the desired precision of synchronized algorithm that Home eNodeB adopts; Then with descending time slot or the descending sub frame number time corresponding length determined, be used for the Measuring Time length that wireless environment or the environment of eating dishes without rice or wine are measured to Home eNodeB as configuration.

For example the desired precision of synchronized algorithm of Home eNodeB employing is Ts, for the minimum reference symbol number that reaches the required measurement of the desired precision Ts of synchronized algorithm that Home eNodeB adopts is N, according to system's uplink and downlink timeslot ratio configuration information of determining, can determine the descending time slot or the descending sub frame number Z that in a radio frames, comprise, and the reference symbol number that can be used in measurement that comprises respectively in each descending time slot or the descending sub frame is M; Continuous descending time slot or the descending sub frame number that then can determine to reaching the required measurement of the desired precision Ts of synchronized algorithm that Home eNodeB adopts are that N/M rounds up, the pairing time span of number of time slot that N/M can be rounded up and obtain so just, the Measuring Time length of wireless environment or the environment of eating dishes without rice or wine being measured with work to Home eNodeB as configuration.But configuration should be the descending time slot length summation that is comprised in a radio frames (length of a radio frames of LTE system is 10ms) or the radio half frame (length of a radio half frame is 5ms in the LTE system) for the upper limit of the Measuring Time length of Home eNodeB, and the Measuring Time length of promptly distributing to Home eNodeB should not surpass this descending time slot length summation.

The second way: at first according to the uplink and downlink timeslot ratio configuration information of determining, determine descending time slot time corresponding length in a radio frames, in the time span of determining, select time corresponding length, give the Measuring Time length of Home eNodeB as configuration, this shows, configuration should be descending time slot or the descending sub frame length summation that is comprised in a radio frames or the radio half frame for the upper limit of the Measuring Time length of Home eNodeB, and the Measuring Time length of promptly distributing to Home eNodeB should not surpass this descending time slot length summation.When this external this system is the LTE system, the time span of selecting is at least an OFDM symbol time corresponding length, when this system is the TD-SCDMA system, the time span of selecting is at least a time slot time corresponding length, and the Measuring Time length of promptly distributing to Home eNodeB has lower limit to require.

The third mode: at first according to the uplink and downlink timeslot ratio configuration information of determining, determine the descending time slot that in a radio frames, comprises or the number and the position thereof of descending sub frame, and then according to the number and the positional information thereof of descending time slot of determining or descending sub frame, in a radio frames, select continuous or discrete descending time slot or descending sub frame, and descending time slot or the descending sub frame that selects be configured to multicast broadcast single frequency network (MBSFN, Multicast Broadcast Single Frequency Network) time slot or subframe; The Measuring Time length that the MBSFN time slot or the subframe of configuration is used to measure to Home eNodeB as configuration then.

As shown in Figure 1, one that provides for the embodiment of the invention is the specific embodiment process chart of Home eNodeB allocating and measuring time span, and wherein concrete implementation procedure is as follows:

Step 10, the Home eNodeB start is handled;

Step 11 after the Home eNodeB start, is monitored wireless environment on every side, comes the select target base station to carry out Synchronous Processing by the intensity of synchronizing signal coherent detection;

Step 12, the primary synchronization channel signal (PSS, Primary SynchronizationSignal) of detection target BS, to realize 5ms frame synchronization, and the auxiliary synchronization channel signal (SSS, Secondary Synchronization Signal) of detection target BS, to realize 10ms frame synchronization;

Step 13 detects common pilot signal (CRS, Common Reference Signal), and is that channel estimating is carried out on the basis with detected common pilot signal;

Step 14 detects the system information that target BS broadcast channel (PBCH, PhysicalBroadcast Channel) is gone up broadcasting according to channel estimation results;

Step 15 reads the uplink and downlink timeslot ratio configuration information of TDD system in the subframeAssignment parameter among the system information block SIB1 from detected system information;

Step 16 according to the uplink and downlink timeslot ratio configuration information that reads, is used for the Measuring Time length that wireless environment is on every side measured for Home eNodeB configuration.Wherein configuration should be above the total length of descending time slot or descending sub frame (comprising the descending time slot in the special time slot) in a radio frames or the radio half frame to the Measuring Time length upper limit of Home eNodeB, and lower limit is at least a time slot (for for the TD-SCDMA system) or an OFDM symbol (for the LTE system); For example, for the TD-LTE Home eNodeB, for fear of hindering the reception of terminal to broadcast message, influence sub-district gravity treatment or the performance of handoffs of terminal from macro base station to the family base station, can select to remove in the 5ms frame descending time slot length summation outside the TS0 subframe that comprises broadcast channel, give the Measuring Time length of TD-LTE Home eNodeB as configuration.

With the TD-LTE Home eNodeB is example, and the wireless environment around at first intercepting after the Home eNodeB start carries out coherent detection to PSS, the SSS signal that receives, and seeks best macro base station or the Home eNodeB of received signal quality and carries out air interface synchronization; Finish 5ms frame synchronization by the PSS signal that listens to, finish 10ms frame synchronization by the SSS signal that listens to again; The common pilot signal CRS of receiving target base station after the frame synchronization, and carry out channel estimating according to the common pilot signal CRS that receives, PBCH goes up the system information of broadcasting according to channel estimation results retrieval demodulation broadcast channel, read the TDD uplink and downlink timeslot ratio configuration information among the SIB1 in the system information that demodulation obtains, for example, DL: UL=2: 2; After entering normal operating conditions afterwards, Home eNodeB need regularly receive the down public guide frequency signal of target macro base station or target Home eNodeB, keep synchronously realizing, to have only after target macro base station or target Home eNodeB are closed, just need carry out above-mentioned synchronous searching again and handle.Because it is unified that the uplink and downlink timeslot ratio of TDD system is configured in the same geographic area, the system uplink and downlink timeslot ratio configuration that then current Home eNodeB is determined can be used as near the network up and down time slot ratio configuration the Home eNodeB, and promptly carrying out again synchronous searching also no longer needs to resolve once more system information that target BS the broadcasts uplink and downlink timeslot ratio configuration information with reading system on broadcast channel; Then Home eNodeB can be according to system's uplink and downlink timeslot ratio configuration information of determining, allocating and measuring time span.With tdd frame structure shown in Figure 2 is that example describes, when determining DL: UL=2: in the time of 2, then Measuring Time length can be configured to 1ms, promptly only measure the CRS signal on the generic downlink time slot TS4, perhaps Measuring Time length is configured to 2ms, promptly measure the CRS signal among TS0 and the TS4, then other 3ms frame in the 5ms frame can operate as normal, can effectively reduce the expense that Home eNodeB is used to measure.If consider when the cycle of keeping synchronously is longer, certain synchronous error is arranged between Home eNodeB and the target BS, and multidiameter delay, the PDSCH signal that transmits in the special time slot in addition also may comprise the CRS signal, can be 3ms also, promptly measure the CRS signal among TS0, DwPTS, the TS4 the Measuring Time length setting.

As fully visible, because the self character of TDD system, for preventing the time slot cross interference, the configuration of the whole network uplink and downlink timeslot ratio in a geographic area generally all is identical, therefore what the embodiment of the invention proposed just has versatility and realizability for the scheme of Home eNodeB allocating and measuring time, according to the Measuring Time length that system's uplink and downlink timeslot ratio of determining disposes, can be used for measuring the downlink reference signal of other base station equally.In addition, according to the Measuring Time length of system uplink and downlink timeslot ratio configuration when having realizability and versatility, can also reduce the Radio Resource expense that is used to measure effectively, for example, at 7 kinds of time slot ratio configurations in the TD-LTE system shown in Figure 3, the embodiment of the invention can be saved the measurement expense of 20-80%.

Further, the position of the descending reference symbol that the zero-time position of above-mentioned Measuring Time length for Home eNodeB configuration can be by the measurement target base station determines, particularly can but be not limited to determine by following dual mode:

First kind of mode: at first be used for Home eNodeB is carried out the downlink reference signal process to be measured that synchronous target BS sends in measurement, successively coherent detection is carried out in the footpath of each reference symbol to be measured in the receive window, obtained the footpath that first surpasses the reference symbol to be measured of detection threshold; And then the zero-time position of footpath in receive window of the reference symbol to be measured that detection is obtained, give the zero-time position of the Measuring Time of Home eNodeB as configuration.

The second way: at first be used for Home eNodeB is carried out the downlink reference signal process to be measured that synchronous target BS sends in measurement, respectively coherent detection is carried out in the footpath of each reference symbol to be measured in the receive window, obtained the footpath of the highest reference symbol to be measured of testing result; And then the zero-time position of footpath in receive window of the reference symbol to be measured that detection is obtained, give the zero-time position of the Measuring Time of Home eNodeB as configuration.

For example, what select when carrying out air interface synchronization as if Home eNodeB is the primary/secondary synchronizing signal of target BS, then the original position of Measuring Time can be arranged on the moment that primary/secondary synchronizing signal begins; If what select is the common pilot signal of target BS, then the original position of Measuring Time can be arranged on the zero hour of a certain descending time slot in the common pilot signal.

In addition, implementing above-mentioned separately is the embodiment of the original position of Home eNodeB allocating and measuring time, also within the protection range of claim of the present invention.

Further, can also and then require and the crystal oscillator stability of Home eNodeB self and system wireless frame length value etc. according to the synchronization accuracy of Home eNodeB, for Home eNodeB disposes the measuring period that is used to carry out radio environment measurements, layoutprocedure is as follows particularly:

At first determine the crystal oscillator stability information of desired synchronization accuracy information of Home eNodeB and Home eNodeB self; Then according to synchronization accuracy information and the crystal oscillator stability information determined, be used for the measuring period that wireless environment or the environment of eating dishes without rice or wine are measured for the Home eNodeB configuration.Need particularly according to the crystal oscillator stability information of determining, determine two maximum frequency error values between the Home eNodeB, again according to the maximum frequency error value of determining, determine two maximum time error amounts between the Home eNodeB, and then ask for quotient between above-mentioned definite synchronization accuracy information and the maximum time error amount, then the quotient asked for is disposed to Home eNodeB with the measuring period of doing wireless environment or the environment of eating dishes without rice or wine are measured as the Cycle Length value.

For example, if the synchronization accuracy of Home eNodeB requires to be Ts (unit microsecond, as 3us), the crystal oscillator stability of Home eNodeB self be P (unit is 1,000,000/, as 0.25ppm, promptly the maximum time error in a second is 0.25us on time domain), then the maximum time error between two Home eNodeB will be 2P (as 0.5us), then need the measuring period of disposing the longlyest to be Ts/2P (3/0.5=6s).

For reaching better effect, radio frames length value that can also using system adjusts for the measuring period of Home eNodeB to configuration, when judging length value measuring period for Home eNodeB configuration and be the integral multiple of radio frames length value of system, can select do not adjusted the measuring period of disposing for Home eNodeB particularly; And when judging length value measuring period for Home eNodeB configuration and be not the integral multiple of radio frames length value of system, then can and then ask for configuration and give the length value and the quotient of system wireless frame length value measuring period of Home eNodeB, and this quotient rounded downwards, value that will obtain after will rounding then and system wireless frame length value are long-pending, as new the measuring period that wireless environment or the environment of eating dishes without rice or wine are measured of being used for, thereby reach the purpose that configuration is given the measuring period of Home eNodeB and adjusted for the Home eNodeB configuration.

For example, when the radio frames length of system is Tr (as 10ms), because above-mentioned length 6s measuring period for the Home eNodeB configuration is the integral multiple of 10ms, the problem of deviation appears in the time slot position of measuring after several radio frames that can not occur producing owing to measuring period and radio frames length are inconsistent, thereby causes and can't measure.If be 12ms the above-mentioned the longest measuring period that synchronization accuracy requires and the crystal oscillator stability draws according to Home eNodeB, and the radio frames length of system is 10ms, then 12ms measuring period that asks for can be adjusted into 10ms, between synchronization accuracy requirement and sequential stability, to obtain compromise.

If the above-mentioned Measuring Time length that is used to measure for the Home eNodeB configuration is made up of MBSFN time slot or subframe, then can be the MBSFN time slot or the integral multiple in sub-frame configuration cycle the measuring period that is used to measure for the Home eNodeB configuration.

In addition, implement the above-mentioned embodiment in Home eNodeB allocating and measuring cycle that is separately, also within the protection range of claim of the present invention.

Here it is emphasized that; the above-mentioned proposition of the embodiment of the invention be the scheme of Home eNodeB allocating and measuring time, for the scheme in Home eNodeB allocating and measuring cycle, be the scheme of Home eNodeB allocating and measuring time original position; can carry out combination in any according to actual needs and use, three schemes of above-mentioned proposition and the combination in any of three schemes are all within the protection range of claim of the present invention.

In addition; have above-mentioned proposition for the device of Home eNodeB allocating and measuring time function, for the device of Home eNodeB allocating and measuring periodic function, be the device of Home eNodeB allocating and measuring time original position function; also within the protection range of claim of the present invention; these devices can place existing Home eNodeB, and the household base station device that has above-mentioned corresponding function like this is also within the protection range of claim of the present invention.

The embodiment of the invention is introduced " the TDD Home eNodeB is configured Measuring Time according to system's uplink and downlink timeslot ratio " or " Measuring Time of TDD Home eNodeB is adjusted according to system's uplink and downlink timeslot ratio " in family's base station measurement time and measuring period in the allocation plan.And further suggestion is adopted with the mode of mapping table Measuring Time, the Measuring Time original position to Home eNodeB and is configured, according to 7 kinds of time slot ratio configuration schematic diagram in the existing TD-LTE system among above-mentioned Fig. 3, following table 1 has provided a mapping table example, form provided a kind of future may be in standard to the Measuring Time of Home eNodeB configuration, Measuring Time starting position, the configuration format of measuring period etc.The embodiment of the invention it is desirable to and can be the different Measuring Time of Home eNodeB configuration, the original position or the measuring period of Measuring Time at different system's uplink and downlink timeslot ratios in standard.According to actual performance, can delete all possible situation of listing in this table 1, for example corresponding time slot ratio is 0 o'clock, if the Measuring Time (continuous) of configuration is 2ms, then can select TS0+TS1 or TS5+TS6 to measure, and since TS0 carrying be broadcast message PBCH, if may destroy the reception of broadcast channel with this time slot measurement, then might finally select for use TS5+TS6 to measure, and corresponding Measuring Time original position be set to TS5.Promptly will be in the standard formulation process according to the synchronized algorithm ability of Home eNodeB, and all situations of listing in the his-and-hers watches 1 such as other factors screens, for example, guarantee the normal receiving broadcasting information of terminal if be defined as, TS0 will be under an embargo and be configured to Measuring Time, then can be with comprising the option deletion of TS0, to simplify standard; If the longest Measuring Time of regulation can not surpass 3ms in a 10ms radio frames, then time slot ratio can be disposed the option deletion that surpasses the 3ms Measuring Time among 2～6 (configuration2-6).

Table 1:

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims

1. one kind is Home eNodeB allocating and measuring time method, it is characterized in that, comprising:

Determine the uplink and downlink timeslot ratio configuration information of system;

According to the uplink and downlink timeslot ratio configuration information of determining, dispose the Measuring Time length that is used to measure for Home eNodeB.

2. the method for claim 1 is characterized in that, determines the uplink and downlink timeslot ratio configuration information of system, specifically comprises:

Intercept the system information that is used for Home eNodeB is carried out synchronous target BS broadcasting; And

From the system information that listens to, parse the uplink and downlink timeslot ratio configuration information of system.

3. the method for claim 1 is characterized in that, according to the uplink and downlink timeslot ratio configuration information of determining, the Measuring Time length for the Home eNodeB configuration is used to measure comprises:

According to the uplink and downlink timeslot ratio configuration information of determining, determine descending time slot or descending sub frame time corresponding length in a radio frames; And

In the time span of determining, select time corresponding length, as disposing the Measuring Time length that is used to measure to Home eNodeB.

4. method as claimed in claim 3 is characterized in that, when described system was the LTE system, the time span of selection was at least an OFDM symbol time corresponding length;

When described system was the TD-SCDMA system, the time span of selection was at least a time slot time corresponding length.

5. the method for claim 1 is characterized in that, according to the uplink and downlink timeslot ratio configuration information of determining, the Measuring Time length for the Home eNodeB configuration is used to measure comprises:

According to the uplink and downlink timeslot ratio configuration information of determining, determine the descending time slot in a radio frames or the number and the position thereof of descending sub frame; And

According to the descending time slot of determining or the number and the position thereof of descending sub frame, in a radio frames, select descending time slot or descending sub frame; And

Descending time slot or the descending sub frame chosen are configured to multicast broadcast single frequency network time slot or subframe;

The Measuring Time length that the multicast broadcast single frequency network time slot or the subframe of configuration is used to measure to Home eNodeB as configuration.

6. the method for claim 1 is characterized in that, according to the uplink and downlink timeslot ratio configuration information of determining, the Measuring Time length for the Home eNodeB configuration is used to measure comprises:

Be defined as reaching the minimum reference symbol number of the required measurement of the desired precision of synchronized algorithm that Home eNodeB adopts;

According to the uplink and downlink timeslot ratio configuration information of determining, determine the descending time slot or the descending sub frame number that in a radio frames, comprise and the reference symbol number that can be used in measurement that comprises respectively in each descending time slot or the descending sub frame;

According to the minimum reference symbol number of determining, and descending time slot that in a radio frames, comprises or descending sub frame number, and the reference symbol number that can be used in measurement that comprises respectively in each descending time slot or the descending sub frame, be defined as reaching the continuous descending time slot or the descending sub frame number of the required measurement of the desired precision of synchronized algorithm that Home eNodeB adopts;

With descending time slot or the descending sub frame number time corresponding length of determining, as disposing the Measuring Time length that is used to measure to Home eNodeB.

7. the method for claim 1 is characterized in that, also comprises:

Determine the zero-time position of described Measuring Time length.

8. method as claimed in claim 7 is characterized in that, determines the zero-time position of described Measuring Time length, specifically comprises:

Be used for Home eNodeB is carried out the downlink reference signal process to be measured that synchronous target BS sends in measurement, successively coherent detection carried out in the footpath of each reference symbol to be measured in the receive window, obtain the footpath that first surpasses the reference symbol to be measured of detection threshold;

The zero-time position of footpath in receive window of the reference symbol to be measured that detection is obtained is as the zero-time position of described Measuring Time length.

9. method as claimed in claim 7 is characterized in that, determines the zero-time position of described Measuring Time length, specifically comprises:

Be used for Home eNodeB is carried out the downlink reference signal process to be measured that synchronous target BS sends in measurement, respectively coherent detection carried out in the footpath of each reference symbol to be measured in the receive window, obtain the footpath of the highest reference symbol to be measured of testing result;

10. the method for claim 1 is characterized in that, also comprises:

Dispose the measuring period that is used to measure for Home eNodeB.

11. method as claimed in claim 10 is characterized in that, the measuring period for the Home eNodeB configuration is used to measure, specifically comprises:

Determine the desired synchronization accuracy information of Home eNodeB, and

Determine the crystal oscillator stability information of Home eNodeB self;

According to synchronization accuracy information and the crystal oscillator stability information determined, dispose the measuring period that is used to measure for Home eNodeB.

12. method as claimed in claim 11 is characterized in that, according to synchronization accuracy information and the crystal oscillator stability information determined, the measuring period for the Home eNodeB configuration is used to measure, specifically comprises:

According to the crystal oscillator stability information of determining, determine two maximum frequency error values between the Home eNodeB;

According to the maximum frequency error value of determining, determine two maximum time error amounts between the Home eNodeB;

Ask for the quotient between definite synchronization accuracy information and the maximum time error amount;

The quotient of asking for is disposed to Home eNodeB as the measuring period of measuring as the Cycle Length value.

13. method as claimed in claim 11 is characterized in that, also comprises:

Determine the radio frames length value of system; And

Based on the radio frames length value of determining to adjusting the measuring period of disposing for Home eNodeB.

14. method as claimed in claim 13 is characterized in that,, specifically comprises adjusting the measuring period of disposing for Home eNodeB based on the radio frames length value of determining:

Whether length value measuring period that is judged as Home eNodeB configuration is the integral multiple of the radio frames length value determined, and in judged result when being, to not adjusting the measuring period of disposing for Home eNodeB; Otherwise

Ask for described measuring period of length value and the quotient of radio frames length value, and described quotient is rounded downwards; And

Value that obtains after rounding and the radio frames length value of determining is long-pending, as the new measuring period that is used to measure for the Home eNodeB configuration.

15. method as claimed in claim 5 is characterized in that, also comprises:

Be the measuring period that the Home eNodeB configuration is used to measure, wherein be the integral multiple in multicast broadcast single frequency network time slot or sub-frame configuration cycle Pei Zhi this measuring period.

16. one kind is the device of Home eNodeB allocating and measuring time, it is characterized in that, comprising:

The unit that is used for the uplink and downlink timeslot ratio configuration information of definite system;

Be used for disposing the unit of the Measuring Time length that is used to measure for Home eNodeB according to the uplink and downlink timeslot ratio configuration information of determining.

17. one kind is the method in Home eNodeB allocating and measuring cycle, it is characterized in that, comprising:

Determine the desired synchronization accuracy information of Home eNodeB, and

Determine the crystal oscillator stability information of Home eNodeB self;

18. method as claimed in claim 17 is characterized in that, according to synchronization accuracy information and the crystal oscillator stability information determined, the measuring period for the Home eNodeB configuration is used to measure, specifically comprises:

19. method as claimed in claim 17 is characterized in that, also comprises:

Determine the radio frames length value of system; And

20. method as claimed in claim 19 is characterized in that,, specifically comprises adjusting the measuring period of disposing for Home eNodeB based on the radio frames length value of determining:

21. one kind is the device in Home eNodeB allocating and measuring cycle, it is characterized in that, comprising:

Be used for determining the unit of the desired synchronization accuracy information of Home eNodeB, and

The unit that is used for the crystal oscillator stability information of definite Home eNodeB self;

Be used for disposing the unit of the measuring period that is used to measure for Home eNodeB according to synchronization accuracy information and the crystal oscillator stability information determined.

22. one kind is the method for Home eNodeB allocating and measuring time original position, it is characterized in that, comprising:

The zero-time position of the Measuring Time of Home eNodeB is given in the zero-time position of footpath in receive window of the reference symbol to be measured that detection is obtained as configuration.

23. one kind is the device of Home eNodeB allocating and measuring time original position, it is characterized in that, comprising:

Be used for being used for Home eNodeB is carried out the downlink reference signal process to be measured that synchronous target BS sends in measurement, successively coherent detection is carried out in the footpath of each reference symbol to be measured in the receive window, obtained the unit in the footpath of first reference symbol to be measured that surpasses detection threshold;

The unit of zero-time position of the Measuring Time of Home eNodeB is given in the zero-time position of footpath in receive window that is used for reference symbol to be measured that detection is obtained as configuration.

24. one kind is the method for Home eNodeB allocating and measuring time original position, it is characterized in that, comprising:

25. one kind is the device of Home eNodeB allocating and measuring time original position, it is characterized in that, comprising:

Be used for being used for Home eNodeB is carried out the downlink reference signal process to be measured that synchronous target BS sends in measurement, respectively coherent detection is carried out in the footpath of each reference symbol to be measured in the receive window, obtained the unit in the footpath of the highest reference symbol to be measured of testing result;