CN102291837A

CN102291837A - Method for processing periodic sounding reference signal (SRS) and equipment

Info

Publication number: CN102291837A
Application number: CN2011102312771A
Authority: CN
Inventors: 赵亚利; 许芳丽; 刘佳敏
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2011-08-12
Filing date: 2011-08-12
Publication date: 2011-12-21
Anticipated expiration: 2031-08-12
Also published as: CN102291837B; WO2013023554A1

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 make full use of frequency spectrum resource, introduced carrier aggregation (CA, Carrier Aggregation) technology in the LTE-A system.

Carrier aggregation technology is meant UE(User Equipment, subscriber equipment) a plurality of cell(of polymerization simultaneously sub-district), a plurality of cell can provide the mechanism of data transport service simultaneously for UE.In the system of carrier aggregation, the carrier wave of each cell correspondence 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, UE work divide into a PCell(Primary Cell, main plot for a short time) and several SCell(Secondary Cell, assist the sub-district); The work of most of control and signaling is born in the main plot, and as sending up feedback, the CQI(Channel Quality Indicator to downlink data, channel quality is indicated) report, ascending pilot frequency transmission etc.; Auxilliary sub-district mainly is as resource, bears the function of transfer of data.

(2) carrier wave activation mechanism.

For better economize on electricity,, introduced carrier wave activation mechanism at carrier aggregation system; Wherein, activation mechanism is based on the sub-district, and promptly when the sub-district 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 sub-district, the base station was activated it again.

Behind the UE access network of supporting carrier aggregation, UE at first can set up RRC(Radio Resource Control on PCell, Radio Resource control) 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 SCell interpolation back acquiescence is in deactivation status, after need activating earlier and setting up uplink synchronous, SCell could work.

It should be noted that, UE can not be in other uplink except that inserting at random on the SCell under the deactivation status, for example, SRS(Sounding Reference Signal, the monitoring reference signal)/and 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 sub-districts 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 sub-districts of UE polymerization is identical; Current LTE-A R11 has introduced many TA scene, i.e. all sub-district TA of UE polymerization may be different.

At 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 the F1 cell, mobile management is carried out based on F1; If UE is positioned at RRH cell and the equitant zone of F1 cell of F2 under this scene, then 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 UE is positioned at F1 cell and the equitant zone of F2 cell under this scene, then 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 TA to many TA system) notion, 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 inequality.

It should be noted that UE only needs to keep uplink synchronous with a sub-district in a TA group, can realize uplink synchronous all sub-districts in the 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) access mechanism at random of the auxilliary sub-district in the LTE-A system.

LTE-A R10 system supports the non-competing access at random that inserts at random and compete, because LTE-A R10 only supports single TA, consider and carried PUCCH(Physical Uplink Control Channel on the PCell, Physical Uplink Control Channel), therefore only insert at random and on PCell, initiate, be mainly used in and on PCell, set up RRC connection and uplink synchronous.

Because the introducing of many TA after having added SCell, if the TA of SCell and PCell is different, then in order to set up the uplink synchronous on the SCell, need be initiated random access procedure on auxilliary sub-district, the flow process that current SCell adds comprises in LTE-A R11:

1, finishes 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 SCell place TA that judge to activate of base station organizes uplink synchronous, if synchronously, then SCell can normally use; If asynchronous, then the base station need be triggered on the cell of certain activation of UE in this SCell or this SCell place TA group and be initiated to insert at random (SCell was in and activated and synchronous regime this moment).

(5) SRS mechanism is introduced.

SRS disposes at cell, is used to allow the base station know the uplink signal-channel quality of UE on each sub-district.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 configuration of reprovision signaling 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, then UE according to the configuration of base station, sends up sounding signal voluntarily on corresponding running time-frequency resource.

In the prior art, only support a TA group (being PTAG) in the R10 standard, for the sub-district in the PTAG, its periodicity SRS configuration (RRC reprovision process) is carried out after PTAG obtains uplink synchronous, in case UE receives the SRS configuration, then the SRS configuration promptly comes into force; In a single day UE is in state of activation, promptly can be according to the transmission that is configured into line period SRS of base station.

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

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

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

In above-mentioned steps (2), whether existing protocol does not have specified period SRS can send, because this moment, STAG went up TAT(Timing Alignment Timer, the time unifying timer) do not start as yet, the TAT that has only PTAG is in operation, UE according to the running status of the TAT of PTAG can't judge in the 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 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 invention provides the processing method of a kind of periodicity monitoring reference signal SRS, comprising:

When subscriber equipment be can not determine up timing advance TA value on the newly-increased auxilliary sub-district SCell, described subscriber equipment forbade sending periodically SRS.

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

Determination module is used for determining whether subscriber equipment can determine the up timing advance TA value on the newly-increased auxilliary sub-district SCell;

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

Compared with prior art, the embodiment of the invention has the following advantages at least: avoid the transmission of the unnecessary periodicity SRS in auxilliary sub-district, the interference that the minimizing system is unnecessary.

Description of drawings

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

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

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

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

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

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

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

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

Figure 10 is a kind of user device architecture schematic diagram that the embodiment of the 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 auxilliary sub-district of UE, finish by RRC reprovision process newly-increased auxilliary sub-district.In case newly-increased auxilliary sub-district is different with main plot TA, then the base station needs to activate earlier auxilliary sub-district, obtain the uplink synchronous of auxilliary sub-district then, but activate auxilliary sub-district assisting to UE the sub-district obtain synchronous during this period of time in, subscriber equipment can't obtain uplink synchronous state on the SCell and available TA value, so SRS should not send.Based on above-mentioned discovery, the embodiment of the invention provides processing method and the equipment of a kind of periodicity SRS, to avoid the transmission of the unnecessary periodicity SRS in auxilliary sub-district, the interference that the minimizing system is unnecessary.

Embodiment one

The embodiment of the invention one provides the processing method of a kind of periodicity SRS, and as shown in Figure 3, this method may further comprise the steps:

Step 301, UE is not known the up TA value on the newly-increased auxilliary sub-district SCell, promptly UE can not determine the up TA value on the newly-increased auxilliary sub-district SCell.

Step 302, UE forbids sending periodically SRS.

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

It should be noted that, comprise CQI(Channel Quality Indicator if allow on SCell, to have disposed PUCCH(, the channel quality indication)/SR(Sounding Request, dispatch request)/ACK etc.), when then on SCell, disposing PUCCH, if UE can not determine the up TA value on this SCell, then 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 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 auxilliary sub-district of UE judgement SCell place STAG(Timing Advance group) the RA(Random Access on inserts at random) whether successful, if then 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 the newly-increased auxilliary sub-district SCell.

Under this mode, in the UE side, UE goes up RA according to SCell place STAG and whether judges successfully periodically whether the SRS configuration is available, has only when SCell place STAG goes up RA to complete successfully, and periodically the SRS of configuration just can use.In base station side, to have only after the last RA of STAG completes successfully, 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 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 the newly-increased auxilliary sub-district SCell.

Under this mode, in the UE side, whether UE starts to judge periodically whether the SRS configuration is available, has only 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 have only after STAG goes up the TAT startup, 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 the 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 the STAG, and UE can not send periodically SRS naturally like this.Therefore, by not allowing, when guaranteeing the TA of UE on can not determine SCell, can not send periodically SRS to the SCell configuration cycle property SRS in SCell or the STAG.

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 the STAG is known in the base station to the SCell configuration cycle property SRS(in the STAG).In the UE side, because configuration cycle property SRS not, then UE can not send periodically SRS naturally; In case subscriber equipment is received at SCell in the RRC signaling or the periodicity SRS configuration of SCell at STAG, then UE thinks that the signaling configuration 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.

Whether network equipment allows UE to send periodically SRS by the explicit signaling notice, 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,, after the base station transmission RRC signaling (being used for indicating periodically SRS), also need whether can send, and when allowing UE transmission periodicity SRS, indication is the entry-into-force time of SRS periodically by this periodicity of explicit signaling notice UE SRS in base station side.Wherein, this explicit signaling includes but not limited to RRC signaling or MAC(Media Access Control, medium access control) signaling.In the UE side, receive the RRC signaling that comprises SRS configuration as UE after, 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 invention, under this mode, if adopt the MAC signaling, then 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, if the cell number of system's support is 5, MAC CE can adopt form schematic diagram as shown in Figure 4, and perhaps, C5-C7 also can be changed 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 two TAG at most, MAC CE can adopt form schematic diagram as shown in Figure 5, perhaps can be changed 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 changed to 0 expression and cannot sends periodically SRS, and bit is changed 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 promptly can not determine the up TA value on the SCell) is to the SCell configuration cycle property SRS in SCell or the STAG before UE obtains up TA on the SCell.Have only that just to allow network equipment after UE has obtained the up TA on the SCell be periodicity SRS on the SCell in its configuration SCell or the STAG.Under this situation, before UE determines to obtain up TA on the SCell, comprise the periodically signaling of SRS configuration if receive, then UE thinks and the signaling mistake abandons this signaling.

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

In sum, in the embodiment of the invention, avoid the transmission of the unnecessary periodicity SRS in auxilliary sub-district, promptly can avoid occurring the SRS transmission of non-uplink synchronous, the interference that the minimizing system is unnecessary.

In order more clearly to set forth the technical scheme that the embodiment of the invention provides, below in conjunction with concrete should scene setting forth, under this application scenarios, suppose 4 cell of base station support, be 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 invention two provides the processing method of a kind of periodicity SRS, goes up RA according to STAG and whether judges successfully SCell goes up periodically whether SRS is available, and as shown in Figure 6, this method may further comprise the steps:

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

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

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

Along with the increase of UE transfer of data demand, the base station need increase the sub-district number of polymerization for UE, and the base station wants factor such as data quantity transmitted to determine that needs are that the SCell that UE increases is Cell3 and Cell4 according to channel quality, interference, the UE of SCell.

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 the RRC reprovision signaling.

Step 604, UE receives the processing after the 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 the SCell is unavailable.

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

Step 606, base station triggers STAG initiates uplink synchronous and the up Timing Advance that RA obtains STAG.

Concrete, certain cell(Cell3 or Cell4 in the base station indication STAG) go up and initiate to insert at random uplink synchronous and the up Timing Advance that obtains STAG.

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

UE is after RA completes successfully 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 the step-out, receives SRS on the periodicity SRS of base station configuration time-frequency position after STAG RA success.

Embodiment three

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

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

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

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 the RRC reprovision signaling.

Step 704, UE receives the processing after the 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 (disposes as TDD, PRACH configuration, PUSCH configuration, periodicity SRS configuration etc.) come into force, but the configuration of the periodicity SRS on the SCell is unavailable.

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

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

Concrete, certain cell(Cell3 or Cell4 in the base station indication STAG) go up and initiate to insert at random the uplink synchronous that obtains STAG, behind the RAR that receives at RA initiation cell, start the TAT of STAG correspondence, and the up Timing Advance value that comprises among definite RAR.

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

In case the TAT of SCell correspondence starts, then 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 receives SRS after STAG TAT starts and before not overtime on the periodicity SRS of base station configuration time-frequency position.

Embodiment four

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

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

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

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 the RRC reprovision signaling.

Step 804, UE receives the processing after the 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.Because the acquiescence deexcitation of SCell configuration back, if use these cell, these SCell need at first be activated in the base station.

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

Concrete, certain cell(Cell3 or Cell4 in the base station indication STAG) go up and initiate to insert at random the uplink synchronous that obtains STAG; Behind the RAR that receives at RA initiation cell, start the TAT of STAG correspondence, and the up Timing Advance on definite SCell.

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

Embodiment five

Based on above-mentioned hypothesis, the embodiment of the 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, this method may further comprise the steps:

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

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

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 the RRC reprovision signaling.

Step 904, UE receives the processing after the 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.Because SCell disposes back acquiescence deexcitation, if use these cell, these SCell need at first be activated in the base station, can also send the RRC or the MAC signaling of forbidding SRS when sending the activation signaling to these SCell.

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

Concrete, certain cell(Cell3 or Cell4 in the base station indication STAG) go up and initiate to insert at random the uplink synchronous that obtains STAG.Behind the RAR that receives at RA initiation cell, start the TAT of STAG correspondence.But allow or not on SCell, to send SRS before RRC or the MAC signaling 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 invention, as shown in figure 10, this equipment comprises:

Determination module 101 is used for determining whether subscriber equipment can determine the up timing advance TA value on the newly-increased auxilliary sub-district SCell;

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

Described determination module 101 also is used for when having disposed Physical Uplink Control Channel PUCCH on described SCell, determines whether subscriber equipment can determine the up TA value on the described SCell;

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

Described determination module 101 is further used for judging the whether success of the RA of access at random on the auxilliary sub-district Timing Advance group STAG in described SCell place, if judge that then described subscriber equipment can determine the up TA value on described SCell.

Described determination module 101 is further used for judging whether the time unifying timer TAT of described SCell place STAG starts, if judge that then described subscriber equipment can determine the up TA value on described SCell.

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

Described processing 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.

Described processing module 102, be further used for when only allowing after subscriber equipment can be determined up TA value on the SCell could be for SCell configuration cycle property SRS the time, before the up TA value of determining on the described SCell, comprise the periodically signaling of SRS configuration if receive, think that then 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 the former is better execution mode under a lot of situation.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 the storage medium, comprise that some instructions are with so that a computer equipment (can be a 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, module in the 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 among the 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 present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number is not represented the quality of embodiment just to description.

More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims

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

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

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

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

Described subscriber equipment is judged the whether success of the RA of access at random on the auxilliary sub-district Timing Advance group STAG in described SCell place, if judge that then 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, if judge that then 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 the 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 the 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:

Whether network equipment allows described subscriber equipment to send periodically SRS by the explicit signaling notice, 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, described method further comprises:

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

10. method as claimed in claim 9 is characterized in that,

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

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

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

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

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

13. as claim 11 or 12 described subscriber equipmenies, it is characterized in that,

Described determination module is further used for judging the whether success of the RA of access at random on the auxilliary sub-district Timing Advance group STAG in described SCell place, if judge that then described subscriber equipment can determine the up TA value on described SCell.

14. as claim 11 or 12 described subscriber equipmenies, it is characterized in that,

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

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

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

16. subscriber equipment as claimed in claim 11 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.

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

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