CN102291837B - Method for processing periodic sounding reference signal (SRS) and equipment - Google Patents

Abstract

The invention discloses a method for processing a periodic sounding reference signal (SRS) and equipment. The method comprises the following steps of: forbidding user equipment to send the periodic SRS when an uplink timing advance (TA) value on a newly-added secondary cell (SCell) cannot be determined by the user equipment. By the embodiment of the invention, the unnecessary sending of the periodic SRS by the SCell is avoided, and the unnecessary interference of a system is reduced.

Description

The processing method of a kind of periodicity SRS and equipment

Technical field

The present invention relates to communication technical field, relate in particular to processing method and the equipment of a kind of periodicity SRS.

Background technology

(1) LTE-A(LTE-Advanced, senior LTE) the system carrier aggregation technology.

The peak rate of LTE-A system is than LTE(Long Term Evolution, Long Term Evolution) system improves a lot, and requires to reach descending 1Gbps, up 500Mbps; Simultaneously, there are good compatibility in LTE-A system requirements and LTE system; Based on improve peak rate, with LTE system compatible and the needs that take full advantage of frequency spectrum resource, introduced carrier aggregation (CA, Carrier Aggregation) technology in the LTE-A system.

Carrier aggregation technology refers to UE(User Equipment, subscriber equipment) a plurality of cell(of polymerization residential quarter simultaneously), a plurality of cell can provide the mechanism of data transport service simultaneously for UE.In the system of carrier aggregation, the carrier wave that each cell is corresponding can be continuous or discrete at frequency domain, for the LTE system compatible, the maximum bandwidth of each member carrier is 20MHz, the bandwidth between each member carrier can be identical or different.

Under carrier aggregation, a little PCell(Primary Cell, the main plot divided into of UE work) and several SCell(Secondary Cell, auxiliary residential quarter); Most of control and the work of signaling born in the main plot, and as sending uplink feedback, the CQI(Channel Quality Indicator to downlink data, channel quality is indicated) report, ascending pilot frequency transmission etc.; Auxiliary residential quarter is mainly as resource, bears the function of transfer of data.

(2) carrier activation/deexcitation mechanism.

For better economize on electricity, for carrier aggregation system, introduced carrier activation/deexcitation mechanism; Wherein, activation/deactivation mechanism is based on the residential quarter, and namely when the residential quarter did not have the transfer of data demand, deexcitation can be carried out with it in the base station, and when there was the transfer of data demand residential quarter, the base station was activated it again.

After the UE access network of supporting carrier aggregation, at first UE can set up RRC(Radio Resource Control on PCell, Radio Resource is controlled) connect and uplink synchronous, along with the UE data volume increases, allowing the base station is that UE adds SCell, and SCell adds use RRC reprovision signaling, and after the SCell interpolation, acquiescence is in deactivation status, after need to first activating and setting up uplink synchronous, SCell could work.

It should be noted that, UE can not be in other uplink except random access on the SCell under deactivation status, for example, SRS(Sounding Reference Signal, the monitoring reference signal)/PUSCH(Physical Uplink Shared Channel, Physical Uplink Shared Channel) etc.

(3) LTE-A Multi-TA(Multi-Timing Alignment, many Timing Advances) scene.

The main purpose of TA mechanism is that the upward signal of all residential quarters of all UE in the assurance system arrives the base station simultaneously, to avoid interference.Wherein, UE should avoid the transmitting uplink data of non-uplink synchronous.Current LTE-A R10 only supports single TA scene, i.e. the TA of all residential quarters of UE polymerization is identical; Current LTE-A R11 has introduced many TA scene, i.e. all residential quarter TA of UE polymerization may be different.

For the scene of many TA, a plurality of cell of UE polymerization belong to different band, and these cell have different TA.As shown in Figure 1, for having introduced RRU(Radio Remote Unit, Remote Radio Unit) scene, for example, F1 provides on a large scale and covers, and F2 uses RRH(Remote Radio Head, zoom out antenna) be used for the focus covering in F1 cell, mobile management is carried out based on F1; If under this scene, UE is positioned at RRH cell and the F1 cell equitant zone of F2, F1 cell and F2 cell can polymerizations, but F1 cell is up with the UL(of F2 cell) TA is different.

As shown in Figure 2, for introducing the scene of repeater (repeater), for example, F1 and F2 are supported in the base station, and F1 provides on a large scale and covers, the F2 coverage is less, by frequency selectivity repeater, coverage that can spread F 2 is if under this scene, UE is positioned at F1 cell and F2 cell equitant zone, F1 cell and F2 cell can polymerizations, but the UL TA of F1 cell and F2 cell is different.

Safeguard the current TA group(group of having introduced for the ease of the TA to many TA system) concept, belong to the cell of same TA group, its UL CC(uplink member carrier) can use identical TA value; Belong to the cell of different TA group, the TA of its UL CC is not identical.

It should be noted that UE only needs to keep uplink synchronous with a residential quarter in a TA group, can realize the uplink synchronous to all residential quarters in TA group; For the TA group that comprises PCell, can be called PCell TA group(and be abbreviated as PTAG), for the TA group that only comprises SCell, can be called SCell TA group(and be abbreviated as STAG).

(4) the random access mechanism in auxiliary residential quarter in the LTE-A system.

LTE-A R10 system supports non-competing random access and the random access of competition, because LTE-A R10 only supports single TA, consider and carried PUCCH(Physical Uplink Control Channel on PCell, Physical Uplink Control Channel), therefore random access is only initiated on PCell, is mainly used in setting up RRC and connects and uplink synchronous on PCell.

In LTE-A R11 due to the introducing of many TA, after having added SCell, if the TA of SCell and PCell is different, in order to set up the uplink synchronous on SCell, need to be on auxiliary residential quarter initiating random access procedure, the flow process that current SCell adds comprises:

1, complete SCell by RRC reprovision process and add (this moment, SCell was in deactivation status).

2, the base station is when needs use SCell, and transmission activation signaling activation SCell(SCell this moment is in and activates but desynchronizing state).

3, whether the judgement SCell place TA that activates in base station organizes uplink synchronous, if synchronous, SCell can normally use; If asynchronous, the base station need to be triggered on the cell of certain activation of UE in this SCell or this SCell place TA group and be initiated random access (SCell was in and activated and synchronous regime this moment).

(5) SRS mechanism is introduced.

SRS configures for cell, is used for allowing the base station know the uplink signal-channel quality of UE on each residential quarter.SRS is divided into aperiodicity SRS and periodicity SRS, and aperiodicity SRS is determined whether to send by base station scheduling, and a dispatch can only be dispatched a SRS and send; Periodically SRS connects the reprovision signal deployment by the base station by RRC, SRS sends the running time-frequency resource (as cycle, subframe skew etc.) that uses, in case UE receives the SRS configuration, UE according to the configuration of base station, sends up sounding signal voluntarily on corresponding running time-frequency resource.

In prior art, only support a TA group (being PTAG) in the R10 standard, for the residential quarter in PTAG, its periodicity SRS configuration (RRC reprovision process) is carried out after PTAG obtains uplink synchronous, in case UE receives the SRS configuration, the SRS configuration namely comes into force; In a single day UE is in state of activation, namely can carry out the periodically transmission of SRS according to the configuration of base station.

In the R11 standard, similar in the processing of periodicity SRS and R10 in PTAG, difference is STAG; In the STAG adding procedure, the state change process of cell is as follows in STAG: (1) deexcitation (receiving RRC reprovision signaling), (2) activate but uncertain synchronous/asynchronous state (namely can not determine UL TA value), (3) activate and synchronously.

For step (1), because SCell newly-increased in STAG is in deactivation status, therefore periodically SRS can not send.For step (3), in STAG, newly-increased SCell is in and activates and synchronous regime, can carry out SRS according to periodicity SRS configuration and send.

In realizing process of the present invention, the inventor finds to exist at least in prior art following problem:

In above-mentioned steps (2), whether existing protocol does not have specified period SRS can send, because STAG this moment is upper TAT(Timing Alignment Timer, the time unifying timer) not yet start, only has the TAT of PTAG in operation, UE according to the running status of the TAT of PTAG can't judge in STAG SCell whether uplink synchronous with and the TA value, therefore need the clear and definite periodically SRS that at this moment whether can send.

Summary of the invention

The embodiment of the present invention provides processing method and the equipment of a kind of periodicity SRS, when not being in the uplink synchronous state at SCell, avoids sending periodically SRS.

In order to achieve the above object, the embodiment of the present invention provides the processing method of a kind of periodicity monitoring reference signal SRS, comprising:

When subscriber equipment be can not determine the uplink timing advance TA value that increases newly on auxiliary residential quarter SCell, described subscriber equipment forbade sending periodically SRS.

The embodiment of the present invention provides a kind of subscriber equipment, comprising:

Determination module is used for determining whether subscriber equipment can determine the uplink timing advance TA value on newly-increased auxiliary residential quarter SCell;

Processing module is used for forbidding transmission periodicity SRS when subscriber equipment be can not determine up TA value on described SCell.

Compared with prior art, the embodiment of the present invention has the following advantages at least: avoid the transmission of the unnecessary periodicity SRS in auxiliary residential quarter, the interference that the minimizing system is unnecessary.

Description of drawings

Fig. 1 is the scene schematic diagram of having introduced RRU in prior art;

Fig. 2 is the scene schematic diagram of having introduced the repeater in prior art;

Fig. 3 is the process flow schematic diagram of a kind of periodicity SRS of providing of the embodiment of the present invention one;

Fig. 4 and Fig. 5 are MAC signaling format schematic diagrames in the embodiment of the present invention one;

Fig. 6 is the process flow schematic diagram of a kind of periodicity SRS of providing of the embodiment of the present invention two;

Fig. 7 is the process flow schematic diagram of a kind of periodicity SRS of providing of the embodiment of the present invention three;

Fig. 8 is the process flow schematic diagram of a kind of periodicity SRS of providing of the embodiment of the present invention four;

Fig. 9 is the process flow schematic diagram of a kind of periodicity SRS of providing of the embodiment of the present invention five;

Figure 10 is a kind of user device architecture schematic diagram that the embodiment of the present invention six provides.

Embodiment

For the Long Term Evolution AS R11 version of supporting many TA, during the UE initial access network, only can set up the uplink synchronous of main plot, along with traffic carrying capacity increases, the base station may be the newly-increased auxiliary residential quarter of UE, complete by RRC reprovision process newly-increased auxiliary residential quarter.In case newly-increased auxiliary residential quarter is different with main plot TA, auxiliary residential quarter need to first be activated in the base station, then obtain the uplink synchronous of auxiliary residential quarter, but activate auxiliary residential quarter to UE auxiliary residential quarter obtain synchronous during this period of time in, subscriber equipment can't obtain uplink synchronous state on SCell and available TA value, so SRS should not send.Based on above-mentioned discovery, the embodiment of the present invention provides processing method and the equipment of a kind of periodicity SRS, to avoid the transmission of the unnecessary periodicity SRS in auxiliary residential quarter, the interference that the minimizing system is unnecessary.

Embodiment one

The embodiment of the present invention one provides the processing method of a kind of periodicity SRS, and as shown in Figure 3, the method comprises the following steps:

Step 301, UE is not known the up TA value on newly-increased auxiliary residential quarter SCell, namely UE can not determine the up TA value on newly-increased auxiliary residential quarter SCell.

Step 302, UE forbids sending periodically SRS.

In the embodiment of the present invention, after network equipment (as the base station) increases a SCell newly for UE, if UE can't determine according to the TAT of SCell or SCell ownership STAG the synchronous or desynchronizing state of newly-increased SCell, be UE when not knowing the up TA value of newly-increased auxiliary residential quarter SCell, UE does not allow to send periodicity SRS.

It should be noted that, comprise CQI(Channel Quality Indicator if allow to have configured PUCCH(on SCell, the channel quality indication)/SR(Sounding Request, dispatch request)/ACK etc.), when configuring PUCCH on SCell, if UE can not determine the up TA value on this SCell, forbid sending PUCCH.

Wherein, the processing procedure of PUCCH is similar with the processing procedure of periodicity SRS, and the follow-up example that is treated to periodicity SRS describes.

In order to realize the said process of the embodiment of the present invention, can be in the following ways:

Mode one: under this mode, configuration cycle property SRS when increasing SCell, and avoid the periodically unnecessary transmission of SRS by introducing other mechanism.

The auxiliary cell timing lead of UE judgement SCell place STAG(group) the RA(Random Access on, random access) whether successful, if so, UE determines that SCell is in the uplink synchronous state, and UE can determine the up TA value on SCell.Otherwise UE determines to know the up TA value on newly-increased auxiliary residential quarter SCell.

Under this mode, in the UE side, UE RA upper according to SCell place STAG whether successfully judgement periodically whether the SRS configuration available, only have to be successfully completed as the upper RA of SCell place STAG, periodically the SRS of configuration just can use.In base station side, to only have after the upper RA of STAG is successfully completed, the base station just begins to receive the SRS that UE sends on corresponding time-frequency position.

Mode two: under this mode, configuration cycle property SRS when increasing SCell, and avoid the periodically unnecessary transmission of SRS by introducing other mechanism.

UE judges the TAT(time unifying timer of SCell place STAG) whether start, if so, UE determines that SCell is in the uplink synchronous state, and UE can be known the up TA value on this Scell; Otherwise UE determines to know the up TA value on newly-increased auxiliary residential quarter SCell.

Under this mode, in the UE side, whether UE starts to judge periodically whether the SRS configuration is available, only has the TAT as SCell place STAG to start according to the TAT of SCell place STAG, and the SRS of periodicity configuration just can send.In base station side, to only have after the upper TAT of STAG starts, the base station just begins to receive the SRS that UE sends on corresponding time-frequency position.

Mode three: under this mode, by forbidding that the SCell configuration cycle property SRS in SCell or STAG is avoided the periodically unnecessary transmission of SRS.

Network equipment (as the base station) is known the SCell configuration cycle property SRS that forbids in SCell or STAG, and UE can not send periodically SRS naturally like this.Therefore, by not allowing the SCell configuration cycle property SRS in SCell or STAG, when guaranteeing the TA of UE on can not determine SCell, can not send periodically SRS.

Under this mode, in base station side, agreement regulation base station does not allow SCell or is that the SCell configuration cycle property SRS that forbids in SCell or STAG is known in the base station to the SCell configuration cycle property SRS(in STAG).In the UE side, due to configuration cycle property SRS not, UE can not send periodically SRS naturally; In case subscriber equipment is received in the RRC signaling for SCell or the periodicity SRS configuration of SCell in for STAG, UE thinks that signal deployment makes mistakes, and abandons this signaling.

Mode four: under this mode, configuration cycle property SRS when increasing SCell, and avoid the periodically unnecessary transmission of SRS by introducing other mechanism.

Network equipment notifies whether allow periodically SRS of UE transmission by explicit signaling, and the entry-into-force time of further passing through explicit signaling announcement period SRS.After receiving the signaling that comprises periodically SRS configuration, UE determines the periodically entry-into-force time of SRS according to the indication of network side; And after the entry-into-force time that arrives periodicity SRS, UE allows to send periodically SRS.

Under this mode, in base station side, (be used to indicate periodically SRS) after the base station sends the RRC signaling, also need to notify this periodicity of UE SRS whether can send by explicit signaling, and when allowing UE to send periodicity SRS, indication is the entry-into-force time of SRS periodically.Wherein, this explicit signaling includes but not limited to RRC signaling or MAC(Media Access Control, medium access control) signaling.In the UE side, after receiving as UE the RRC signaling that comprises the SRS configuration, the SRS configuration can't come into force, but will determine the entry-into-force time according to the explicit signaling indication of base station.

In the embodiment of the present invention, under this mode, if adopt the MAC signaling, need to introduce new LCID(Logical Channel ID, Logic Channel Identifier), this moment MAC CE(Control Element, control unit) part can adopt the bitmap(bitmap) mode, and two kinds of forms can be arranged:

Form 1:Ci represents the cell numbering, the corresponding PCell of lowest order, and the bit number that Ci takies depends on the Cell number that system supports.For example, can adopt as shown in Figure 4 form schematic diagram if the cell number of system's support is 5, MAC CE, perhaps, C5-C7 also can be set to R bit.

Form 2:Ti represents to be numbered the TAG of i, the corresponding PTAG of lowest order, and the bit that Ti takies depends on the TAG number that system supports.For example, if system supports at most two TAG, MAC CE can adopt form schematic diagram as shown in Figure 5, perhaps can be set to R bit from T2-T7.

It should be noted that Ti can have two kinds of implications: expression is numbered the cell of i, perhaps is numbered corresponding bit of TAG of i, and for example bit is set to 0 expression and cannot sends periodically SRS, and bit is set to 1 expression and allows to send periodically SRS.

Mode five: under this mode, the agreement regulation can only could be its configuration cycle property SRS in base station after the SCell uplink synchronous.

Network equipment is known and is forbidden that (before namely can not determine the up TA value on SCell) is to the SCell configuration cycle property SRS in SCell or STAG before UE obtains up TA on SCell.Only have that just to allow network equipment after UE has obtained the up TA on SCell be periodicity SRS on SCell in its configuration SCell or STAG.In this situation, before UE determines to obtain up TA on SCell, comprise the periodically signaling of SRS configuration if receive, UE thinks and the signaling mistake abandons this signaling.

Under this mode, in base station side, agreement regulation base station do not allow to be SCell configuration cycle property SRS before UE obtains the SCell uplink timing advance, if the SRS configuration is arranged before, the base station should configure.In the UE side, if obtain to receive before the uplink timing advance of SCell periodicity SRS configuration for described SCell in the RRC signaling at UE, UE thinks that signaling makes mistakes, and abandons this signaling.

In sum, in the embodiment of the present invention, avoid the transmission of the unnecessary periodicity SRS in auxiliary residential quarter, namely can avoid occurring the SRS transmission of non-uplink synchronous, the interference that the minimizing system is unnecessary.

The technical scheme that provides in order more clearly to set forth the embodiment of the present invention below in conjunction with concrete should scene setting forth, under this application scenarios, is supposed 4 cell of base station support, is called Cell1, Cell2, Cell3 and Cell4.Wherein, Cell1 is PCell, and the TA of Cell2 and PCell is identical, belongs to PTAG; The TA of Cell3 and Cell4 is identical, belongs to a STAG.

Embodiment two

Based on above-mentioned hypothesis, the embodiment of the present invention two provides the processing method of a kind of periodicity SRS, and whether RA upper according to STAG judges successfully whether the upper periodicity of SCell SRS is available, and as shown in Figure 6, the method comprises the following steps:

Step 601 is set up RRC and is connected and uplink synchronous on PCell.

When the UE of Idle state has the transfer of data demand, initiate RA on PCell, set up RRC and connect and uplink synchronous on PCell.

Step 602, base station are determined newly-increased SCell.

Along with the increase of UE transfer of data demand, the base station need to increase for UE the residential quarter number of polymerization, and the factors such as data volume that the base station will be transmitted according to channel quality, interference, the UE of SCell determine that needs are that the SCell that UE increases is Cell3 and Cell4.

Step 603, base station are configured to UE by RRC reprovision process and carry out the SCell interpolation.The periodicity SRS configuration information that comprises Cell3 and Cell4 in RRC reprovision signaling.

Step 604, UE receives the processing after RRC reprovision signaling.

UE from current synchronously and certain cell(that activates be PCell herein) receive this RRC reconfiguration message, the configuration information that comprises in the heavy signaling of RRC is (as TDD(Time Division Duplexing, time division duplex) configuration, PRACH(Packet Random Access Channel, Packet Random Access Channel) configuration, PUSCH(Physical Uplink Shared Channel, Physical Uplink Shared Channel) configuration, periodicity SRS configuration etc.) come into force, but the configuration of the periodicity SRS on SCell is unavailable.

Step 605, base station activation increases SCell newly.Due to acquiescence deexcitation after the SCell configuration, if use these cell, these SCell need to be activated in the base station at first.

Step 606, base station triggers STAG initiates uplink synchronous and the uplink timing advance that RA obtains STAG.

Concrete, interior certain cell(Cell3 of base station indication STAG or Cell4) upper uplink synchronous and uplink timing advance of initiating random access acquisition STAG.

Step 607, UE determines that periodically the SRS configuration can send.

UE is after RA is successfully completed in STAG, and the periodicity SRS configuration of UE on Cell3 and Cell4 is just available.

Step 608, the base station receives the periodicity SRS of UE on STAG.

The base station and not before step-out, receives SRS on the periodicity SRS time-frequency position of base station configuration after STAG RA success.

Embodiment three

Whether based on above-mentioned hypothesis, the embodiment of the present invention three provides the processing method of a kind of periodicity SRS, whether start according to the TAT of STAG the periodicity SRS that judges on SCell and can send, and as shown in Figure 7, the method comprises the following steps:

Step 701 is set up RRC and is connected and uplink synchronous on PCell.

When the UE of Idle state has the transfer of data demand, initiate RA on PCell, set up RRC and connect and uplink synchronous on PCell.

Step 702, base station are determined newly-increased SCell.

Along with the increase of UE transfer of data demand, the base station need to increase for UE the residential quarter number of polymerization, and the factors such as data volume that the base station will be transmitted according to channel quality, interference, the UE of SCell determine that needs are that the SCell that UE increases is Cell3 and Cell4.

Step 703, base station are configured to UE by RRC reprovision process and carry out the SCell interpolation.The periodicity SRS configuration information that comprises Cell3 and Cell4 in RRC reprovision signaling.

Step 704, UE receives the processing after RRC reprovision signaling.

UE from current synchronously and certain cell(PCell that activates) receive this RRC reconfiguration message, the configuration information that comprises in the heavy signaling of RRC (configures as TDD, PRACH configuration, PUSCH configuration, periodicity SRS configuration etc.) come into force, but the configuration of the periodicity SRS on SCell is unavailable.

Step 705, base station activation increases SCell newly.Due to acquiescence deexcitation after the SCell configuration, if use these cell, these SCell need to be activated in the base station at first.

Step 706, whether whether UE starts according to the TAT of STAG the periodicity SRS that determines on SCell can send.

Concrete, interior certain cell(Cell3 of base station indication STAG or Cell4) the upper uplink synchronous of initiating random access acquisition STAG, after the RAR that receives for RA initiation cell, start TAT corresponding to STAG, and the uplink timing advance value that comprises in definite RAR.

Step 707, UE determines that periodically the SRS configuration can send.

In case TAT corresponding to SCell starts, UE can send periodically SRS on Cell3 that STAG comprises and Cell4.

Step 708, the base station receives the periodicity SRS of UE on STAG.

The base station is after STAG TAT starts and before not overtime, receives SRS on the periodicity SRS time-frequency position that configures in the base station.

Embodiment four

Based on above-mentioned hypothesis, the embodiment of the present invention four provides the processing method of a kind of periodicity SRS, stipulate any one SCell or only have SCell or the not synchronous configuration cycle property SRS that do not allow in STAG in agreement, as shown in Figure 8, the method comprises the following steps:

Step 801 is set up RRC and is connected and uplink synchronous on PCell.

When the UE of Idle state has the transfer of data demand, initiate RA on PCell, set up RRC and connect and uplink synchronous on PCell.

Step 802, base station are determined newly-increased SCell.

Along with the increase of UE transfer of data demand, the base station need to increase for UE the residential quarter number of polymerization, and the factors such as data volume that the base station will be transmitted according to channel quality, interference, the UE of SCell determine that needs are that the SCell that UE increases is Cell3 and Cell4.

Step 803, base station are configured to UE by RRC reprovision process and carry out the SCell interpolation.The periodicity SRS configuration information that does not comprise Cell3 and Cell4 in RRC reprovision signaling.

Step 804, UE receives the processing after RRC reprovision signaling.

UE from current synchronously and certain cell(PCell that activates) receive this RRC reconfiguration message, the configuration information that comprises in the heavy signaling of RRC (as the TDD configuration, PRACH configuration, PUSCH configuration etc.) comes into force.

It should be noted that and to comprise the periodically configuration information of SRS in this RRC reprovision signaling.

Step 805, base station activation increases SCell newly.Due to acquiescence deexcitation after the SCell configuration, if use these cell, these SCell need to be activated in the base station at first.

Step 806, base station triggers STAG initiates the uplink synchronous that RA obtains STAG.

Concrete, interior certain cell(Cell3 of base station indication STAG or Cell4) the upper uplink synchronous of initiating random access acquisition STAG; After the RAR that receives for RA initiation cell, start TAT corresponding to STAG, and the uplink timing advance on definite SCell.

Step 807, follow-up SRS transmission.If the uplink signal-channel quality information on SCell need to be known in the base station, UE can be dispatched at transmission SRS aperiodic on SCell or after SCell obtains uplink timing advance in the base station, then configuration cycle property SRS.

Embodiment five

Based on above-mentioned hypothesis, the embodiment of the present invention five provides the processing method of a kind of periodicity SRS, forbids the SRS transmission by explicit signaling, and as shown in Figure 9, the method comprises the following steps:

Step 901 is set up RRC and is connected and uplink synchronous on PCell.

When the UE of Idle state has the transfer of data demand, initiate RA on PCell, set up RRC and connect and uplink synchronous on PCell.

Step 902, base station are determined newly-increased SCell.

Along with the increase of UE transfer of data demand, the base station need to increase for UE the residential quarter number of polymerization, and the factors such as data volume that the base station will be transmitted according to channel quality, interference, the UE of SCell determine that needs are that the SCell that UE increases is Cell3 and Cell4.

Step 903, base station are configured to UE by RRC reprovision process and carry out the SCell interpolation.The periodicity SRS configuration information that comprises Cell3 and Cell4 in RRC reprovision signaling.

Step 904, UE receives the processing after RRC reprovision signaling.

UE from current synchronously and certain cell(PCell that activates) receive this RRC reconfiguration message, the configuration information that comprises in the heavy signaling of RRC (such as the TDD configuration, PRACH configuration, PUSCH configuration, SRS configuration etc.) comes into force.

Step 905, base station activation increases SCell newly.Due to acquiescence deexcitation after the SCell configuration, if use these cell, these SCell need to be activated in the base station at first, can also send RRC or the MAC signaling of forbidding SRS when activating signaling for these SCell transmissions.

Step 906, base station triggers STAG initiates the uplink synchronous that RA obtains STAG.

Concrete, interior certain cell(Cell3 of base station indication STAG or Cell4) the upper uplink synchronous of initiating random access acquisition STAG.After the RAR that receives for RA initiation cell, start TAT corresponding to STAG.But allow or not to send SRS before RRC or MAC signaling on SCell at the SRS that receives the base station transmission.

Step 907 receive the explicit signaling indication of base station as UE after, just can determine whether SRS can send according to the signaling indication.

Embodiment six

Based on the inventive concept same with said method, a kind of subscriber equipment also is provided in the embodiment of the present invention, as shown in figure 10, this equipment comprises:

Determination module 101 is used for determining whether subscriber equipment can determine the uplink timing advance TA value on newly-increased auxiliary residential quarter SCell;

Processing module 102 is used for forbidding transmission periodicity SRS when subscriber equipment be can not determine up TA value on described SCell.

Describeddetermination module 101 also is used for determining whether subscriber equipment can determine the up TA value on described SCell when having configured Physical Uplink Control Channel PUCCH on described SCell;

Describedprocessing module 102 also is used for forbidding sending PUCCH when subscriber equipment be can not determine up TA value on SCell.

Describeddetermination module 101 is further used for judging the whether success of random access RA on the auxiliary cell timing lead group STAG of described SCell place, if so, judges that described subscriber equipment can determine the up TA value on described SCell.

Describeddetermination module 101 is further used for judging whether the time unifying timer TAT of described SCell place STAG starts, and if so, judges that described subscriber equipment can determine the up TA value on described SCell.

Describedprocessing module 102 is further used for when not allowing the SCell configuration cycle property SRS in described SCell or STAG, when guaranteeing the TA on can not determine SCell, can not send periodically SRS.

Describedprocessing module 102 is further used for determining the entry-into-force time of described periodicity SRS according to the explicit signaling indication of network side after receiving the signaling that comprises periodically SRS configuration; And after the entry-into-force time that arrives periodicity SRS, allow to send periodically SRS.

Describedprocessing module 102, be further used for when only allowing after subscriber equipment can be determined up TA value on SCell could be for SCell configuration cycle property SRS the time, before the up TA value of determining on described SCell, comprise the periodically signaling of SRS configuration if receive, think that signaling makes a mistake, and abandon this signaling.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part 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 a 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 the described method of each embodiment of the present invention.

It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.

It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number does not represent the quality of embodiment just to description.

Above disclosed be only several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.

Claims (15)

1. a periodicity is monitored the processing method of reference signal SRS, it is characterized in that, comprising:

When subscriber equipment be can not determine the uplink timing advance TA value that increases newly on auxiliary residential quarter SCell, described subscriber equipment forbade sending periodically SRS;

Wherein, described method further comprises:

After subscriber equipment can be determined up TA value on SCell, when network equipment could be for SCell configuration cycle property SRS, before described subscriber equipment is determined up TA value on described SCell, comprise the periodically signaling of SRS configuration if receive, described subscriber equipment thinks that signaling makes a mistake, and abandons this signaling.

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

When having configured Physical Uplink Control Channel PUCCH on described SCell, if described subscriber equipment be can not determine the up TA value on SCell, forbid sending PUCCH.

3. method as claimed in claim 1 or 2, is characterized in that, described method further comprises:

Described subscriber equipment judges the whether success of random access RA on the auxiliary cell timing lead group STAG of described SCell place, if so, judges that described subscriber equipment can determine the up TA value on described SCell.

4. method as claimed in claim 1 or 2, is characterized in that, described method further comprises:

Described subscriber equipment judges whether the time unifying timer TAT of described SCell place STAG starts, and if so, judges that described subscriber equipment can determine the up TA value on described SCell.

5. the method for claim 1, is characterized in that, described method further comprises:

Do not allow the SCell configuration cycle property SRS in described SCell or STAG, when guaranteeing the TA of described subscriber equipment on can not determine SCell, can not send periodically SRS.

6. method as claimed in claim 5, is characterized in that, described method further comprises:

Network equipment is forbidden the SCell configuration cycle property SRS in described SCell or STAG.

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

After receiving the signaling that comprises periodically SRS configuration, described subscriber equipment is determined the entry-into-force time of described periodicity SRS according to the indication of network side; And after the entry-into-force time that arrives periodicity SRS, described subscriber equipment allows to send periodically SRS.

8. method as claimed in claim 7, is characterized in that, described method further comprises:

Network equipment notifies whether allow periodically SRS of described subscriber equipment transmission by explicit signaling, and further notifies the entry-into-force time of described periodicity SRS by explicit signaling.

9. the method for claim 1, is characterized in that,

Network equipment is known and was forbidden before subscriber equipment be can not determine up TA value on SCell the SCell configuration cycle property SRS in described SCell or STAG.

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

Determination module is used for determining whether subscriber equipment can determine the uplink timing advance TA value on newly-increased auxiliary residential quarter SCell;

Processing module is used for forbidding transmission periodicity SRS when subscriber equipment be can not determine up TA value on described SCell;

Wherein, described processing module, be further used for when only allowing after subscriber equipment can be determined up TA value on SCell could be for SCell configuration cycle property SRS the time, before the up TA value of determining on described SCell, comprise the periodically signaling of SRS configuration if receive, think that signaling makes a mistake, and abandon this signaling.

11. subscriber equipment as claimed in claim 10 is characterized in that,

Described determination module also is used for determining whether subscriber equipment can determine the up TA value on described SCell when having configured Physical Uplink Control Channel PUCCH on described SCell;

Described processing module also is used for forbidding sending PUCCH when subscriber equipment be can not determine up TA value on SCell.

12. subscriber equipment as described in claim 10 or 11 is characterized in that,

Described determination module is further used for judging the whether success of random access RA on the auxiliary cell timing lead group STAG of described SCell place, if so, judges that described subscriber equipment can determine the up TA value on described SCell.

13. subscriber equipment as described in claim 10 or 11 is characterized in that,

Described determination module is further used for judging whether the time unifying timer TAT of described SCell place STAG starts, and if so, judges that described subscriber equipment can determine the up TA value on described SCell.

14. subscriber equipment as claimed in claim 10 is characterized in that,

Described processing module is further used for when not allowing the SCell configuration cycle property SRS in described SCell or STAG, when guaranteeing the TA on can not determine SCell, can not send periodically SRS.

15. subscriber equipment as claimed in claim 10 is characterized in that,

Described processing module is further used for determining the entry-into-force time of described periodicity SRS according to the explicit signaling indication of network side after receiving the signaling that comprises periodically SRS configuration; And after the entry-into-force time that arrives periodicity SRS, allow to send periodically SRS.

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