CN103858467B

CN103858467B - Cooperative multi-point measurement method, base station and user equipment

Info

Publication number: CN103858467B
Application number: CN201280016474.4A
Authority: CN
Inventors: 曾清海; 张宏平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-08-01
Filing date: 2012-08-01
Publication date: 2018-08-21
Anticipated expiration: 2032-08-01
Also published as: WO2014019168A1; CN103858467A

Abstract

The invention discloses a kind of CoMP measurement methods, base station and UE, the serving cell that base station is polymerize by UE（SCell or PCell）CoMP measurement sets are configured, which includes the serving cell（SCell or PCell）And its information of CoMP cooperation network elements.When SCell needs are deactivated or activate or PCell needs to stop or start CoMP communication, base station can notify UE by control signaling, to which UE can stop or start according to the CoMP measurement sets to carry out CSI measurements to the CoMP cooperation network elements of the serving cell.It avoids and deactivates or activate SCell every time（Or PCell needs to stop or start CoMP communication）When, the operation reconfigured using RRC signaling reduces the expense of RRC signaling.

Description

Cooperative multi-point measurement method, base station and user equipment

Technical field

The present embodiments relate to the communications field more particularly to a kind of cooperative multi-points（coordinated multi- Point, CoMP）Measurement method, base station and user equipment（UE）.

Background technology

With the respective development of mobile communication and wireless access wide band technology, the business of the two interpenetrates, in order to full The demand of sufficient mobile communication broad band and the challenge for coping with broadband connections mobile, third generation partner program（the 3rd Generation partnership project, 3GPP) working group proposes higher performance requirement, example to communication system Such as, peak rate, peaks spectrum efficiency, cell average spectral efficiency, cell edge spectrum efficiency and system bandwidth etc. are carried Go out higher requirement, in order to meet these requirements, introduces carrier wave polymerization（Carrier aggregation, CA）, CoMP etc. Technology.

CA technologies by the way that the bandwidth of bigger can be obtained to the polymerization of multiple continuous or discrete component carrier, to Peak data rate and throughput of system are improved, while also solving the problems, such as that operator's frequency spectrum is discontinuous.UE is in downlink and upper Row can support multiple component carriers respectively（Component carrier, CC）Polymerization.In multiple component carriers of polymerization, Including a uplink principal component carrier wave（UL PCC）With a downlink principal component carrier wave（DL PCC）.Divide supplemented by other component carriers Loading gage wave, including uplink auxiliary component carrier（UL SCC）With downlink auxiliary component carrier（DL SCC）.The auxiliary component of uplink and downlink carries Wave number mesh can be the same or different.It, can be with for example, in practical applications, demand of the downlink to data service is higher than uplink It is more than the polymerization methods of uplink auxiliary component carrier using downlink auxiliary component carrier.When being configured with CA, only there are one nothings for UE and network Line resources control connects（RRC connection）, when wireless heterogeneous networks connection establishes, re-establishes or switch, a service Cell provides Non-Access Stratum（NAS）It is mobile（mobility）Information and safety input（security input）, the serving cell Referred to as main serving cell（PCell）.The uplink of PCell corresponds to UL PCC, and the downlink of PCell corresponds to DL PCC.UE is configured Other serving cells be known as auxiliary serving cell（SCell）, the uplink of SCell corresponds to corresponding to the downlink of UL SCC, SCell DL SCC.When DL SCC are more than UL SCC, there are the SCell of single downlink.PCell and SCell are referred to as serving cell （serving cell）.In order to save resource, CA supports SCell activation and deactivates（activation/deactivation）, For example, when demand of the business of UE to broadband reduces or when the radio condition of SCell is poor, base station can deactivate SCell.UE is not listening to Physical Downlink Control Channel on deactivated SCell（PDCCH）, not in Physical Downlink Shared Channel （PDSCH）Downlink data is received, and physically row does not share channel（PUSCH）And Physical Uplink Control Channel（PUCCH）Hair Send data or signaling, such as channel state information（Channel state information, CSI）, detection reference signal（SRS） Deng.

CoMP technologies are communicated using the cooperation between the multiple network elements detached on geographical location with UE, to reduce cell The interference of edge UE simultaneously improves cell edge throughput（cell edge throughput）.Currently, base station passes through radio resource Control（RRC）Configuration, to indicate that UE carries out channel state information（Channel state information, CSI）It measures and reports It accuses, coordinates the resource allocation for participating in multiple network elements of CoMP cooperations according to the CSI of UE reports.The network element for example can be cell （cell）, the corresponding node of cell（For example, base station, relay node）, far end radio frequency head（Remote radio head, RRH）、 Remote Radio Unit（Radio remote unit, RRU）, antenna port（antenna port）Deng may be collectively referred to as transfer point （TP）.

Under CA scenes, if some SCell is configured to participate in CoMP transmission, after being deactivated to the SCell, UE Its CSI measurements also just stopped.But UE to other CoMP cooperate network element CSI measure with report can also according to RRC configure after It is continuous to carry out.However, these are measured and report is invalid, because such case network will not dispatch the CoMP cooperations of the SCell Network element leads to uplink interference to cause the waste of UE electric energy and uplink signaling.On the one hand, if using RRC signaling deallocation It sets（de-configure）CoMP cooperate network element CSI measure, then every time deactivate SCell when, be required for using RRC signaling into Row reconfigures, and when more frequent to the deactivated operations of SCell, can waste more RRC signaling expense.On the other hand, if The deactivating operation of the SCell is limited, when subscriber traffic is temporarily relatively low, the SCell is not needed and keeps state of activation When, which can not be deactivated, it is unfavorable to economize on electricity to UE.In addition, when activating some SCell, equally faces and believed using RRC It enables the CSI of configuration CoMP cooperation network elements measure, then when each activation SCell, is required for being reconfigured using RRC signaling, when When more frequent to the operation of SCell activation, more RRC signaling expense can be wasted.

In addition, if some PCell is configured to participate in CoMP transmission, when the resource overhead of the PCell is larger, it is no longer appropriate for When participating in CoMP transmission, since PCell cannot be deactivated, thus, it will continue to carry out CSI measurements and report to PCell.This When, the CSI of other CoMP cooperations network elements, which measures equally be configured according to RRC with report, to be continued.However, these are to other The measurement and report of CoMP cooperation network elements are invalid, because such case network will not dispatch the CoMP coorporative networks of the PCell Member, to the same problem for causing with being faced when above-mentioned deactivation SCell.CoMP is participated in addition, being reconfigured in PCell When transmission, the CSI measurements for the network element that cooperates using RRC signaling configuration CoMP can be also faced, more RRC signaling can be equally wasted and hold Pin.

Invention content

In view of this, the embodiment of the present invention provides a kind of CoMP measurement methods, base station and UE, in CA scenes, to quilt When the serving cell that configuration participates in CoMP transmission stops or starts CoMP communication, RRC signaling expense can be reduced.

In a first aspect, a kind of cooperative multi-point measurement method is provided, including：Base station is to user equipment（UE）Send cooperative multi-point （CoMP）Measurement set, the CoMP measurement sets correspond to a serving cell, and the CoMP measurement sets include the serving cell The information of the CoMP of information and serving cell cooperation network elements；The base station sends control signaling to the UE, the control Signaling processed is used to indicate the UE and stops or start according to the CoMP measurement sets to cooperate network element to the CoMP of the serving cell Carry out channel state information（CSI）It measures.

In the first possible realization method of first aspect, the serving cell is auxiliary serving cell, and the control Signaling processed is the deactivation signaling or activation signaling of the auxiliary serving cell, wherein the deactivation signaling is used to indicate described UE stops carrying out CSI measurements, the activation signaling to the CoMP cooperation network elements of the serving cell according to the CoMP measurement sets The UE is used to indicate to be started to carry out CSI measurements to the CoMP cooperation network elements of the serving cell according to the CoMP measurement sets.

In second of possible realization method of first aspect, with reference to first aspect or first aspect the first may Realization method, when the serving cell is auxiliary serving cell, the control signaling is additionally operable to indicate that the UE stops or opens Begin to carry out CSI measurements to the auxiliary serving cell.

It, with reference to first aspect may to second of first aspect in the third possible realization method of first aspect One of realization method, cooperate with the CoMP of the serving cell information of network element of the information of the serving cell includes following One of or its arbitrary combine：Cell index, cell ID or frequency information.

In the 4th kind of possible realization method of first aspect, the third to first aspect may with reference to first aspect One of realization method, the CoMP measurement sets further include that CoMP measures set identifier.

In the 5th kind of possible realization method of first aspect, with reference to first aspect to the 4th kind of possibility of first aspect One of realization method, the CoMP measurement sets further include channel quality instruction（CQI）Report configuration, CQI report configuration packet Include following one or its arbitrary combination：CQI, pre-coding matrix instruction（PMI）, precoding type instruction（PTI）, order instruction （RI）.

In the 6th kind of possible realization method of first aspect, with reference to first aspect to the 5th kind of possibility of first aspect One of realization method, the control signaling is further used for indicating that the UE stops according to the CoMP measurement sets in predetermined subframe Only or start to carry out CSI measurements to the CoMP cooperation network elements of the serving cell.

In the 7th kind of possible realization method of first aspect, with reference to first aspect to the 6th kind of possibility of first aspect One of realization method, the base station sends the CoMP measurement sets by dedicated signaling to UE, and the dedicated signaling includes nothing Line resources control connection reconfiguration sets message or media access control layer control cell（MAC CE）.

In the 8th kind of possible realization method of first aspect, with reference to first aspect to the 7th kind of possibility of first aspect One of realization method, the control signaling is MAC CE.

Second aspect provides a kind of cooperative multi-point measurement method, including：User equipment（UE）Receive the cooperation that base station is sent Multiple spot（CoMP）Measurement set, the CoMP measurement sets correspond to a serving cell, and the CoMP measurement sets include that the service is small The information of the CoMP of the information in area and serving cell cooperation network elements；The UE receives the control letter that the base station is sent Enable, and according to the control signaling with the CoMP measurement sets stop or start cooperating to the CoMP of the serving cell network element into Row channel state information（CSI）It measures.

In the first possible realization method of second aspect, the serving cell is auxiliary serving cell, and the control Signaling processed be the auxiliary serving cell deactivation signaling or activation signaling, and the UE according to the deactivation signaling with it is described CoMP measurement sets stop carrying out CSI measurements to the CoMP cooperation network elements of the serving cell or the UE believes according to the activation It enables and starts the network element progress CSI measurements that cooperate to the CoMP of the serving cell with CoMP measurement sets.

It, may in conjunction with the first of second aspect or second aspect in second of possible realization method of second aspect Realization method, when the serving cell is auxiliary serving cell, the control signaling is additionally operable to indicate that the UE stops or opens Begin to carry out CSI measurements to the auxiliary serving cell.

In the third possible realization method of second aspect, second in conjunction with second aspect to second aspect may One of realization method, cooperate with the CoMP of the serving cell information of network element of the information of the serving cell includes following One of or its arbitrary combine：Cell index, cell ID or frequency information.

In the 4th kind of possible realization method of second aspect, the third in conjunction with second aspect to second aspect may One of realization method, the CoMP measurement sets further include that CoMP measures set identifier.

In the 5th kind of possible realization method of second aspect, in conjunction with the 4th kind of possibility of second aspect to second aspect One of realization method, the CoMP measurement sets further include channel quality instruction（CQI）Report configuration, CQI report configuration packet Include following one or its arbitrary combination：CQI, pre-coding matrix instruction（PMI）, precoding type instruction（PTI）, order instruction （RI）.

In the 6th kind of possible realization method of second aspect, in conjunction with the 5th kind of possibility of second aspect to second aspect One of realization method, the UE stops or starts to carry out the CoMP cooperation network elements of the auxiliary serving cell in predetermined subframe CSI is measured.

In the 7th kind of possible realization method of second aspect, in conjunction with the 6th kind of possibility of second aspect to second aspect One of realization method, the UE receives the CoMP measurement sets by dedicated signaling, and the dedicated signaling includes radio resource Control connection reconfiguration sets message or media access control layer control cell（MAC CE）.

In the 8th kind of possible realization method of second aspect, in conjunction with the 7th kind of possibility of second aspect to second aspect One of realization method, the control signaling is MAC CE.

The third aspect provides a kind of base station, including：Transmission unit is used for user equipment（UE）Send cooperative multi-point （CoMP）Measurement set, the CoMP measurement sets correspond to a serving cell, and the CoMP measurement sets include the serving cell The information of the CoMP of information and serving cell cooperation network elements；Control unit, for generating control signaling, and by described Transmission unit sends the control signaling to the UE, wherein the control signaling is used to indicate the UE according to the CoMP Measurement set stops or starts to carry out channel state information to the CoMP cooperation network elements of the serving cell（CSI）It measures.

In the first possible realization method of the third aspect, the serving cell is auxiliary serving cell, and the control Signaling processed is the deactivation signaling or activation signaling of the auxiliary serving cell, wherein the deactivation signaling is used to indicate described UE stops carrying out CSI measurements, the activation signaling to the CoMP cooperation network elements of the serving cell according to the CoMP measurement sets The UE is used to indicate to be started to carry out CSI measurements to the CoMP cooperation network elements of the serving cell according to the CoMP measurement sets.

It, may in conjunction with the first of the third aspect or the third aspect in second of possible realization method of the third aspect Realization method, when the serving cell is auxiliary serving cell, the control signaling is additionally operable to indicate that the UE stops or opens Begin to carry out CSI measurements to the auxiliary serving cell.

In the third possible realization method of the third aspect, second in conjunction with the third aspect to the third aspect may One of realization method, cooperate with the CoMP of the serving cell information of network element of the information of the serving cell includes following One of or its arbitrary combine：Cell index, cell ID or frequency information.

In the 4th kind of possible realization method of the third aspect, the third in conjunction with the third aspect to the third aspect may One of realization method, the CoMP measurement sets further include that CoMP measures set identifier.

In the 5th kind of possible realization method of the third aspect, in conjunction with the 4th kind of possibility of the third aspect to the third aspect One of realization method, the CoMP measurement sets further include channel quality instruction（CQI）Report configuration, CQI report configuration packet Include following one or its arbitrary combination：CQI, pre-coding matrix instruction（PMI）, precoding type instruction（PTI）, order instruction （RI）.

In the 6th kind of possible realization method of the third aspect, in conjunction with the 5th kind of possibility of the third aspect to the third aspect One of realization method, the control signaling is further used for indicating that the UE stops according to the CoMP measurement sets in predetermined subframe Only or start to carry out CSI measurements to the CoMP cooperation network elements of the serving cell.

In the 7th kind of possible realization method of the third aspect, in conjunction with the 6th kind of possibility of the third aspect to the third aspect One of realization method, the transmission unit is further used for sending CoMP measurement sets to the UE by dedicated signaling, described Dedicated signaling includes wireless resource control connection reconfiguration message or media access control layer control cell（MAC CE）.

Fourth aspect provides a kind of user equipment（UE）, including：Receiving unit, the cooperation for receiving base station transmission are more Point（CoMP）Measurement set, the CoMP measurement sets correspond to a serving cell, and the CoMP measurement sets include the serving cell Information and the serving cell CoMP cooperation network element information；The receiving unit is additionally operable to receive the base station transmission Control signaling；Measuring unit, for according to the CoMP measurement sets to the serving cell and the serving cell CoMP cooperation network elements carry out CSI measurements；Control unit, for according to the control signaling and the CoMP measurement sets, controlling institute Measuring unit is stated to stop or start to carry out channel state information to the CoMP cooperation network elements of the serving cell（CSI）It measures.

In the first possible realization method of fourth aspect, the serving cell is auxiliary serving cell, and the control Signaling processed is the deactivation signaling or activation signaling of the auxiliary serving cell, and described control unit is further used for going according to Activation signaling and the CoMP measurement sets control the measuring unit and stop cooperating network element progress to the CoMP of the serving cell CSI is measured, or is further used for being started to the clothes according to the activation signaling and the CoMP measurement sets control measuring unit The CoMP cooperation network elements for cell of being engaged in carry out CSI measurements.

It, may in conjunction with the first of fourth aspect or fourth aspect in second of possible realization method of fourth aspect Realization method, when the serving cell is auxiliary serving cell, described control unit is further used for controlling measurements singly Member stops or starts to carry out CSI measurements to the auxiliary serving cell.

In the third possible realization method of fourth aspect, second in conjunction with fourth aspect to fourth aspect may One of realization method, cooperate with the CoMP of the serving cell information of network element of the information of the serving cell includes following One of or its arbitrary combine：Cell index, cell ID or frequency information.

In the 4th kind of possible realization method of fourth aspect, the third in conjunction with fourth aspect to fourth aspect may One of realization method, the CoMP measurement sets further include that CoMP measures set identifier.

In the 5th kind of possible realization method of fourth aspect, in conjunction with the 4th kind of possibility of fourth aspect to fourth aspect One of realization method, the CoMP measurement sets further include channel quality instruction（CQI）Report configuration, CQI report configuration packet Include following one or its arbitrary combination：CQI, pre-coding matrix instruction（PMI）, precoding type instruction（PTI）, order instruction （RI）.

In the 6th kind of possible realization method of fourth aspect, in conjunction with the 5th kind of possibility of fourth aspect to fourth aspect One of realization method, described control unit control the measuring unit stop or start in predetermined subframe it is small to the auxiliary service The CoMP cooperation network elements in area carry out CSI measurements.

In the 7th kind of possible realization method of fourth aspect, in conjunction with the 6th kind of possibility of fourth aspect to fourth aspect One of realization method, the receiving unit receives the CoMP measurement sets by dedicated signaling, and the dedicated signaling includes nothing Line resources control connection reconfiguration sets message or media access control layer control cell（MAC CE）.

In the 8th kind of possible realization method of fourth aspect, in conjunction with the 7th kind of possibility of fourth aspect to fourth aspect One of realization method, the control signaling is MAC CE.

5th aspect, provides a kind of base station, including transmitter, memory and connects respectively with the transmitter and memory The processor connect, wherein memory storage batch processing code and cooperative multi-point（CoMP）Measurement set, the CoMP are measured The corresponding serving cell of collection, and the CoMP measurement sets include the information of the serving cell and the CoMP of the serving cell The information of cooperation network element；The processor calls the program code stored in the memory, for performing the following operations：Pass through The transmitter is to user equipment（UE）Send the CoMP measurement sets；Control signaling is generated, the control signaling is used to indicate The UE stops or starts according to the CoMP measurement sets to carry out channel status letter to the CoMP cooperation network elements of the serving cell Breath（CSI）It measures；By the transmitter control signaling is sent to the UE.

6th aspect, provides a kind of user equipment（UE）, including receiver, memory and respectively with the receiver and The processor of memory connection, wherein the memory stores batch processing code, the processor calls in the memory The program code of storage, for performing the following operations：The cooperative multi-point that base station is sent is received by the receiver（CoMP）It surveys Quantity set, the CoMP measurement sets correspond to a serving cell, and the CoMP measurement sets include the serving cell information and The information of the CoMP cooperation network elements of the serving cell；The control signaling that the base station is sent is received by the receiver；Root Stop or start the network element progress channel that cooperates to the CoMP of the serving cell with the CoMP measurement sets according to the control signaling Status information（CSI）It measures.

7th aspect, provides a kind of computer program product, including computer-readable medium, which includes one group Program code is appointed for executing first aspect, second aspect, any possible realization method of first aspect or second aspect A kind of CoMP measurement methods in possible realization method.

Through the above scheme, the serving cell that base station is polymerize by UE（SCell or PCell）CoMP measurement sets are configured, it should CoMP measurement sets include the serving cell（SCell or PCell）And its information of CoMP cooperation network elements.When SCell need by When deactivation, base station can notify UE by control signaling, to which UE can stop according to the CoMP measurement sets to described The CoMP cooperation network elements of SCell carry out CSI measurements；Or when PCell needs to stop CoMP communication, base station can be believed by controlling Notice UE is enabled, to which UE can stop carrying out CSI surveys to the CoMP cooperation network elements of the PCell according to the CoMP measurement sets Amount.In this way, the CoMP cooperations network element of serving cell will not configure according to RRC and continue CSI measurements, reduce invalid measurement With report, and then reduce the waste of the consumption and uplink signaling of UE electric energy.In addition, the present embodiment is directly logical using control signaling Know that UE stops carrying out CSI measurements to the CoMP cooperation network elements of serving cell, avoids and deactivate SCell every time（Or PCell needs Stop CoMP communication）The operation that Shi Liyong RRC signalings are reconfigured reduces the expense of RRC signaling；Correspondingly, for every Secondary activation SCell（Or PCell is reconfigured participation CoMP communication）When, the present embodiment directly notifies UE to open using control signaling Begin to measure the CSI of the CoMP cooperation network elements of serving cell, avoids activation SCell every time（Or PCell participates in CoMP and leads to again Letter）The operation that Shi Liyong RRC signalings are reconfigured reduces the expense of RRC signaling.

Description of the drawings

A kind of flow chart for CoMP measurement methods that Fig. 1 is provided by the embodiment of the present invention；

The flow chart for another CoMP measurement methods that Fig. 2 is provided by the embodiment of the present invention；

A kind of schematic diagram for control signaling format that Fig. 3 is provided by the embodiment of the present invention；

A kind of flow diagram for CoMP measurement methods that Fig. 4 is provided by the embodiment of the present invention；

The flow diagram for another CoMP measurement method that Fig. 5 is provided by the embodiment of the present invention；

The flow diagram for another CoMP measurement method that Fig. 6 is provided by the embodiment of the present invention；

The flow diagram for another CoMP measurement method that Fig. 7 is provided by the embodiment of the present invention；

A kind of flow diagram of the configuration method for CoMP measurement sets that Fig. 8 is provided by the embodiment of the present invention；

The flow diagram of the configuration method for another CoMP measurement set that Fig. 9 is provided by the embodiment of the present invention；

A kind of functional block diagram for base station that Figure 10 is provided by the embodiment of the present invention；

A kind of structural schematic diagram for base station that Figure 11 is provided by the embodiment of the present invention；

A kind of functional block diagram for UE that Figure 12 is provided by the embodiment of the present invention；

A kind of structural schematic diagram for UE that Figure 13 is provided by the embodiment of the present invention.

Specific implementation mode

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art The all other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.

In certain embodiments, well known method, interface, equipment signaling technology are not specifically described, Yi Mianyin Unnecessary details so that the present invention is fuzzy.Furthermore each individual function module is shown in certain attached drawings.The technology of this field Personnel are appreciated that these functions may be used under type such as and realize：Individual hardware circuit coordinates properly programmed number micro- Processor or software, the application-specific integrated circuit of all-purpose computer operation（ASIC）And/or one or more digital signal processors （DSP）.

Referring to FIG. 1, a kind of flow chart of its CoMP measurement method provided by the embodiment of the present invention, as shown, This method comprises the following steps：

S110：Base station sends CoMP measurement sets to UE, and the CoMP measurement sets correspond to a serving cell, and the CoMP is surveyed Quantity set includes the information of the serving cell and the information of the CoMP cooperation network elements of the serving cell；

S120：The base station sends control signaling to the UE, and the control signaling is used to indicate the UE according to CoMP measurement sets stop or start to carry out CSI measurements to the CoMP cooperation network elements of the serving cell.

Wherein, the serving cell is the serving cell for being configured to participate in CoMP communication.CoMP is measured as UE and is grasped for CoMP The purpose of work and the measurement carried out are to cooperate with network element or being likely to become CoMP and cooperate the net of network element to one or more CoMP Member measures, and it includes but not limited to CSI measurements, wireless resource management to measure（Radio resource management, RRM）It measures, Signal Interference and Noise Ratio（Signal to interference plus noise ratio, SINR）Measure etc., It can be based on cell specific reference signal（Cell specific reference signal, CRS）Or channel state information reference Signal（Channel state information reference signal, CSI-RS）.Network, which can also be based on uplink, to be believed It number measures, such as based on detection reference signal (sounding reference signal, SRS), demodulated reference signal （Demodulation reference signal, DMRS）Deng.

Corresponding to CoMP measurement methods shown in FIG. 1, the embodiment of the present invention separately provides a kind of CoMP measurement methods, such as Fig. 2 Shown, the executive agent of this method is UE, is included the following steps：

S210：UE receives the CoMP measurement sets that base station is sent, and the CoMP measurement sets correspond to a serving cell, and described CoMP measurement sets include the information of the serving cell and the information of the CoMP cooperation network elements of the serving cell；

S220：The UE receives the control signaling that the base station is sent, and is surveyed according to the control signaling and the CoMP Quantity set stops or starts to carry out channel state information CSI measurements to the CoMP cooperation network elements of the serving cell.

Wherein, the serving cell is the serving cell for being configured to participate in CoMP communication.And each serving cell corresponds to one A CoMP measurement sets.And the correspondence of serving cell and CoMP measurement sets can according to the cell index of the serving cell, Cell ID or frequency information determine.In addition, CoMP is measured as the measurement that UE carries out for the purpose of CoMP operation, it is to one Or multiple CoMP cooperation network elements or be likely to become the network elements of CoMP cooperation network elements and measure, measurement includes but not limited to CSI is measured, RRM is measured, SINR is measured etc., can be based on CRS or CSI-RS.Network can also be measured based on uplink signal, Such as it is based on SRS, DMRS.

In the embodiment above, the serving cell that base station is polymerize by UE（SCell or PCell）CoMP measurement sets are configured, The CoMP measurement sets include the serving cell（SCell or PCell）And its information of CoMP cooperation network elements.When SCell needs When being deactivated, base station can notify UE by control signaling, to which UE can stop according to the CoMP measurement sets to described The CoMP cooperation network elements of SCell carry out CSI measurements；Or when due to PCell is larger etc. load needing to stop CoMP communication, Base station can notify UE by control signaling, to which UE can stop the CoMP to the PCell according to the CoMP measurement sets The network element that cooperates carries out CSI measurements.In this way, the CoMP cooperations network element of serving cell will not configure according to RRC and continue CSI surveys Amount, reduces invalid measurement and report, and then reduce the waste of the consumption and uplink signaling of UE electric energy.In addition, this implementation Example directly notifies UE to stop carrying out CSI measurements to the CoMP cooperation network elements of serving cell using control signaling, avoids and goes every time Activate SCell（Or PCell needs to stop CoMP communication）The operation that Shi Liyong RRC signalings are reconfigured, reduces RRC signaling Expense；Correspondingly, for activating SCell every time（Or PCell is reconfigured participation CoMP communication）When, the present embodiment utilizes Control signaling directly notifies UE to start to measure the CSI of the CoMP cooperation network elements of serving cell, avoids activation SCell every time （Or PCell participates in CoMP communication again）The operation that Shi Liyong RRC signalings are reconfigured reduces the expense of RRC signaling.

Certain base station can also be that SCell and PCell configures CoMP measurement sets simultaneously, in the present embodiment to configure wherein It is illustrated for one, while in the case of configuration, is that each SCell or PCell configures CoMP measurement sets, and is directed to each The same above example of processing of SCell or PCell.

It should be noted that when the serving cell of above example is PCell, since PCell needs to remain sharp State living, so there is no need to PCell be stopped or restarted CSI to measure.When above example serving cell be SCell, and When SCell needs are deactivated or activate, UE carries out CSI measurements in addition to the cooperation network element for needing stopping or starting to SCell, It needs to stop or start to carry out CSI measurements to SCell itself.Stop or start at this point, the control signaling is additionally operable to instruction UE CSI measurements are carried out to SCell.

Preferably, the control signaling can be the deactivation signaling or activation signaling of SCell, it is used to deactivate or activates SCell.For example, being used to deactivate or activating the media access control layer of SCell to control cell（Medium Access Control layer control element, MAC CE）；And in the prior art, UE is only deactivated or is swashed according to the signaling SCell living, and stop or start to measure the CSI of the SCell, and to the CoMP of SCell cooperation network elements, to stop or opening Begin its CSI measurement, need to configure by RRC signaling, the expense of RRC signaling is larger.And if not using RRC signaling, it can lead Invalid measurement and report are caused, the waste of the consumption and uplink signaling of UE electric energy is caused.And in the embodiment above, UE is in addition to root It deactivates or is activated except SCell according to the deactivation signaling or activation signaling, stopped also according to the deactivation signaling or activation signaling Only or start to measure the CSI of the CoMP cooperation network elements of the SCell, avoids the appearance of both the above situation, reduce RRC letters The expense of order, and reduce the waste of the consumption and uplink signaling of UE electric energy.In addition, the embodiment of the present invention does not do any restrictions, The control signaling can also be newly-increased control signaling or other existing signalings, as long as can serve to indicate that UE stops or opens Begin to measure the CSI of the CoMP cooperation network elements of serving cell.It should be noted that the deactivation signaling or activation signaling The same signaling can be referred to, different values is respectively used to deactivate or activate SCell；Two signalings can also be referred to, used respectively In deactivation or activation SCell.The embodiment of the present invention does not do any restrictions.

Further, the CoMP of the information of serving cell and serving cell cooperations network element in above each embodiment Information all can be cell index, or frequency information, or combination of the two.

In addition, UE can stop or start to measure the CSI of the CoMP cooperation network elements of serving cell in predetermined subframe.It is described Predetermined subframe can be that base station sends control signaling to UE（Or deactivate SCell）The n-th subframe later（N is positive integer）.Example Such as, in subframe n1（N1 is the integer more than or equal to 0）, base station sends control signaling to UE, and UE is in subframe n1+8（In this case n=8）The CSI for stopping SCell and its CoMP cooperation network elements is measured and report.

It should be noted that no matter to PCell or SCell, the above control signaling all can be MACCE.For example, MAC The header of CE is indicated using a particular value of Logic Channel Identifier, total using 3GPPMAC agreement TS36.321V10.5.0 downlinks Enjoy a value in channel MAC CE retention ranges 01011-11010.

MAC CE uses fixed length MAC subheader formats, such as Fig. 3（1）Shown, wherein R represents reserved field, is 1bit）, E Extended field is represented, is 1bit, remaining 5bit is for indicating Logic Channel Identifier（LCID）.

Format such as Fig. 3 of the quiet lotuses of MAC CE（2）It is shown：C0~C7 respectively accounts for 1bit, and wherein C0 takes " 0 " and " 1 " to indicate respectively " stopping " and " beginning " measures the CSI of the CoMP cooperation network elements of PCell；C1~C7 is SCell indexes（SCellIndex）, and C1~C7 takes " 0 " and " 1 " to indicate that the CSI of " stopping " and " beginning " corresponding SCell and its CoMP cooperations network element is measured respectively.

In the embodiment above, it is configured in the serving cell for participating in CoMP communication, is deactivated there may be SCell Situation, the case where being activated there may also be SCell；And both of these case can refer to different SCell, that is, be deactivated and by The SCell of activation is different SCell；Identical SCell can also be referred to, i.e., same SCell is successively deactivated and activation.Separately Outside, the serving cell for being configured to participate in CoMP communication can also include PCell, which needs to stop since loading condition changes Only CoMP communication then restarts CoMP communication.The embodiment of the present invention can be applied to any of the above situation, and can also Applied to the combination of these situations, the embodiment of the present invention does not do any restrictions.

For example, referring to FIG. 4, the flow diagram of its CoMP measurement method provided by one embodiment of the invention.Such as Shown in figure, this method comprises the following steps：

S410：It is serving cell that message is set in base station by RRC connection reconfigurations（PCell or SCell）Configure CoMP measurement sets； I.e. base station sends RRC connection reconfigurations to UE and sets message, which carries CoMP measurement sets, which, which corresponds to, is configured The PCell or SCell for participating in CoMP communication, the configuration measured with the CoMP realized to the serving cell.

S420：UE sends radio resource connection reconfiguration to base station and sets completion（RRC connection reconfiguration complete）Message.

S430：UE is according to the configuration measurement of CoMP measurement sets and report services cell and its CoMP cooperation network elements（That is CoMP SCell and each CoMP cooperations network element in measurement set）CSI.Wherein, described to measure and be reported in Physical Uplink Control Channel （PUCCH）Or it is carried out on PUSCH.

S440：Base station sends MAC CE to UE, which is used to indicate UE and stops serving cell（Do not include PCell）And The CSI of its CoMP cooperation network elements is measured.

S450：UE receives instruction UE and stops serving cell（Do not include PCell）And its CSI of CoMP cooperation network elements is measured MAC CE after, stop serving cell（Do not include PCell）And its CSI of CoMP cooperation network elements is measured, correspondingly, also stopped The report that CSI is measured.

S460：Base station sends MAC CE to UE, which is used to indicate UE and starts serving cell（Do not include PCell）And The CSI of its CoMP cooperation network elements is measured.

S470：UE receives instruction UE and starts serving cell（Do not include PCell）And its CSI of CoMP cooperation network elements is measured MAC CE after, start serving cell（Do not include PCell）And its CSI of CoMP cooperation network elements is measured, correspondingly, also beginning to The report that CSI is measured.

In step S470, start serving cell（Do not include PCell）And its CoMP cooperation network element CSI measure the step of In, do not refer to that the CSI for not utilizing MAC CE instructions to restart PCell is measured including PCell.This is because to the CSI of PCell Measurement never stops, and restarts the CSI measurements to PCell so there is no need to MAC CE instructions UE.

For the SCell newly configured, it is deactivation status to be defaulted as it；After target BS being switched to for UE, SCell It is defaulted as deactivation status, the CSI that UE stops the SCell and its CoMP cooperation network elements is measured.So, target is switched in UE Behind base station, the CSI that will not immediately begin to SCell and its CoMP cooperation network elements is measured；But utilize the side described in above example Method indicates that UE carries out CSI measurements in predetermined subframe by control signaling.It is switched to from source base station with reference to Fig. 5 detailed descriptions UE The method that CoMP is measured in the case of target BS.

Referring to FIG. 5, a kind of flow diagram of its CoMP measurement method provided by the embodiment of the present invention.As schemed Show, includes the following steps：

S510：UE sends measurement report to source base station（measurement report）.

S520：Source base station switches over judgement according to measurement report（handover decision）, that is, judge whether UE needs Switch.When needing to execute switching, step S530 is executed.

S530：Source base station sends switching request to target BS（handover request）.

S540：Target BS replys handoff response to source base station, which carries CoMP measurement sets.

S550：Source base station sends RRC connection reconfigurations to UE and sets message, and it includes switching command which, which sets message, Such as mobile control information（RRC Connection Reconfiguration with Mobility Control INfo）. The RRC connection reconfigurations set message and carry the CoMP measurement sets that target BS is configured.

S560：UE obtains synchronous with Target cell（Such as pass through random access procedure）, send RRC to target BS and connect It connects to reconfigure and completes message.The default conditions of the corresponding SCell of CoMP measurement sets be deactivate, do not immediately begin to SCell and its The CSI of CoMP cooperation network elements is measured.

S570：Base station sends the control signaling of activation SCell to UE, and the control signaling is used to indicate UE and starts SCell And its CSI of CoMP cooperation network elements is measured.

S580：The CSI that UE starts SCell and its CoMP cooperation network elements is measured.

Preferably, in step S580, the CSI that UE starts SCell and its CoMP cooperation network elements in predetermined subframe is measured.Example Such as, in subframe n1（N1 is the integer more than or equal to zero）, base station is to the control signaling of UE transmission activation SCell, and UE is in subframe n1+ The CSI that n starts SCell and its CoMP cooperation network elements is measured.

With reference to 4 kinds of common at present CoMP scenes by taking SCell as an example, the CoMP that above example is provided is described in detail and is surveyed Amount method.This 4 kinds of CoMP scenes include：Scene 1, homogenous networks（homogeneous network）In website（intra-site） CoMP；Scene 2 has high power far end radio frequency head（Remote radio head, RRH）Homogenous networks；Scene 3 is with low The heterogeneous network of power RRH（heterogeneous network）, wherein each RRH is located at macrocell（macro cell）Covering In range, and transmitting/receiving point different caused by each RRH has different cell IDs（cell ID）；Scene 4 is tool There is the heterogeneous network of low-power RRH, wherein each RRH is located in the coverage area of macrocell, and hair different caused by each RRH Penetrate/receiving point and macrocell cell ID having the same（cellID）.However, the embodiment of the present invention is not limited, it is above Method can be also used between base station（Inter-eNB）CoMP, for example, with the development of technology, it is limited that CoMP is also used in capacity And allow between the base station of the backhaul link centainly postponed.

In above 4 scenes, there are the cooperation network element of preceding 3 scenes different cell ID, CSI measurements can be based on cell Specific reference signals（Cell specific reference signal, CRS）.The cooperation network element of 4th scene has identical Cell ID, CSI measurements can be based on channel state information reference signals（channel state information Reference signal, CSI-RS）.

Referring to FIG. 6, a kind of flow diagram of its CoMP measurement method provided by the embodiment of the present invention.Such as Fig. 6 Shown, this method comprises the following steps：

S610：It is that SCell configures CoMP measurement sets that message is set in base station by RRC connection reconfigurations；I.e. base station sends RRC to UE Connection reconfiguration sets message, which carries CoMP measurement sets, which, which corresponds to, is configured to participate in CoMP communication SCell, the configuration measured with the CoMP realized to the SCell.

（1）For CoMP scenes 1,2 and 3, the CSI measures the CRS for the network element that cooperates based on SCell and each of which CoMP. The CoMP measurement sets include the information of SCell and the information of the CoMP cooperation network elements of SCell.For example, the CoMP measurement sets Including one of the following contents or its arbitrary combination：The carrier wave frequency information of SCell corresponding to CoMP measurement sets（For example, absolutely Radio Frequency Channel Number：Absolute radio frequency channel number, ARFCN）, CoMP measurement sets institute it is right The cell index of the SCell answered（ServCellIndex）, SCell Physical Cell Identifier（phySCellId）.And the CoMP is surveyed Quantity set further includes one of the following contents or its arbitrary combination：At least one cooperation cells CoMP index（CoMPCellIndex）、 The cooperation cells CoMP Physical Cell Identifier（phySCellId）.

（2）For CoMP scenes 4, the CSI measures the CSI-RS for the network element that cooperates based on SCell and each of which CoMP, because The configuration content of this CoMP measurement set is different from the CoMP measurement sets in CoMP scenes 1,2 and 3.Information including SCell and The information of the CoMP cooperation network elements of SCell.For example, the CoMP measurement sets include one of the following contents or its arbitrary combination：CoMP The carrier wave frequency information of SCell corresponding to measurement set（For example, ARFCN）, SCell corresponding to CoMP measurement sets cell rope Draw（ServCellIndex）, SCell Physical Cell Identifier（phySCellId）.And the CoMP measurement sets further include in following One of appearance or its arbitrary combination：The CSI-RS configuration identifiers of at least one CoMP cooperations network element（CSI-RS-ConfigId）Or rope Draw and its corresponding CSI-RS is configured.The CSI-RS configurations include one of following information or its arbitrary combination：Antenna port is matched It sets（antennaPortsCount）, resource distribution（resourceConfig）, sub-frame configuration（subframeConfig）Deng letter Breath.

Further, the CoMP measurement sets can also include that CoMP measures set identifier（compMeasSetId）, for marking Know CoMP measurement sets, and the incidence relation for establishing CoMP measurement sets and SCell is combined with the information of the above SCell.

Further, the CoMP measurement sets can also be configured including CQI report, and the serving cell and the service Each CoMP cooperations network element of cell corresponds to the configuration of CQI report respectively, CQI report configuration include one of the following contents or It is arbitrarily combined：Channel quality indicates（CQI）, pre-coding matrix instruction（PMI）, precoding type instruction（PTI）, order instruction （RI）.These parameters are combined with the information of the CoMP of above SCell cooperation network elements for configuring each CoMP in CoMP measurement sets The CSI of cooperation network element is measured and report information；The CSI for configuring SCell is combined to measure and report letter with the information of SCell Breath.

In the embodiment above, base station sends CoMP measurement sets by dedicated signaling to UE.The dedicated signaling is believed for RRC It enables, for example, wireless resource control connection reconfiguration（RRC connection reconfiguration）Message.The special letter Order can also be MAC CE.Certainly, the present embodiment is not limited, and can also be divided using the combination of RRC signaling and MAC CE Content that Fa Song be in CoMP measurement sets, for example, measured using RRC signaling configuration CSI and report information, it is specified using MACCE The cooperation cells CoMP index, and indicate and which CoMP cooperation network element is needed to measure and report CSI.

S620：UE sets to base station transmission RRC connection reconfigurations and completes message.

S630：UE measures and reports SCell and its CoMP cooperation network elements according to the configuration of CoMP measurement sets（That is, CoMP is surveyed SCell and each CoMP cooperations network element in quantity set）CSI.Wherein, described to measure and be reported in Physical Uplink Control Channel （PUCCH）Or it is carried out on PUSCH.

According to the configuring condition of CoMP measurement sets in step S610, CSI measurements include one of the following contents or its arbitrary group It closes：CQI, PMI, PTI and RI.

S640：When SCell needs to be deactivated, base station sends control signaling to UE, is used to indicate UE according to CoMP measurement sets stop carrying out CSI measurements to the CoMP cooperation network elements of SCell and SCell.

SCell is deactivated can be by base station triggers；It can also be triggered by SCell, for example, what is run on SCell deactivates Active timer（SCell deactivation timer）Time-out；The embodiment of the present invention does not do any restrictions.

In addition, the control signaling for example can be MAC CE, structure please refer to Fig.3 shown in embodiment, herein not It repeats.The control signaling may be the cell newly configured, and structure does not do any restrictions, if can indicate UE start or Stop CSI measuring（Or notice UE SCell are activated or deactivate）.The embodiment of the present invention does not do any restrictions.

S650：UE stops to SCell and its CoMP cooperation network elements（That is, all CoMP in the corresponding CoMP measurement sets of SCell Cooperate network element）CSI measure.Certainly, it also stopped the report of CSI measurements accordingly.

Preferably, UE stops measuring the CSI of SCell and its CoMP cooperation network elements in predetermined subframe.The predetermined subframe Can be that base station sends control signaling to UE（Or deactivate SCell）The n-th subframe later（N is positive integer）.For example, in subframe n2（N2 is the integer more than or equal to 0）, base station sends MAC CE, UE in subframe n2+8 to UE（In this case n=8）Stop The CSI of SCell and its CoMP cooperation network elements is measured and report.

In the embodiment shown in fig. 6, when SCell needs to be deactivated, base station can notify UE by control signaling, from And UE can stop carrying out CSI measurements to the CoMP cooperation network elements of SCell and SCell according to CoMP measurement sets.In this way, The CoMP cooperations network element of SCell will not be configured according to RRC continues CSI measurements, reduces invalid measurement and report, in turn Reduce the waste of the consumption and uplink signaling of UE electric energy；In addition, by configuring CoMP measurement sets and utilizing control signaling direct Notice UE measures the CSI of the CoMP cooperation network elements of SCell to stop UE, avoids and utilizes RRC letters when deactivating SCell every time The operation reconfigured is enabled, the expense of RRC signaling is reduced.

With continued reference to FIG. 7, a kind of flow diagram of its CoMP measurement method provided by the embodiment of the present invention.Its Difference lies in combine activation and deactivate the process of SCell, as shown, including following step with embodiment illustrated in fig. 6 Suddenly：

S710：It is that SCell configures CoMP measurement sets that message is set in base station by RRC connection reconfigurations；That is, base station is sent to UE RRC connection reconfigurations set message, which carries CoMP measurement sets, which, which corresponds to, is configured to participate in CoMP communication SCell, the configuration measured with the CoMP realized to the SCell.

In scene 1,2 and 3, the CSI measures the CRS for the network element that cooperates based on serving cell and each of which CoMP.Therefore, CoMP measurement sets in the present embodiment are identical for the CoMP measurement sets described in scene 1,2 and 3 as embodiment illustrated in fig. 6, Details are not described herein.

In scene 4, the CSI measures the CSI-RS for the network element that cooperates based on serving cell and each of which CoMP.Therefore, originally CoMP measurement sets in embodiment are identical for the CoMP measurement sets described in scene 4 as embodiment illustrated in fig. 6, herein no longer It repeats.

S720：UE sets to base station transmission RRC connection reconfigurations and completes message.

S730：UE measures and reports SCell and its CoMP cooperation network elements according to CoMP measurement sets（That is, in CoMP measurement sets SCell and each CoMP cooperation network elements）CSI.

S740：In subframe n3（N3 is the integer more than or equal to 0）, base station to UE send deactivate SCell control signaling, UE is used to indicate to be stopped carrying out CSI measurements to the CoMP cooperation network elements of SCell and SCell according to the CoMP measurement sets.

S750：Stop to SCell and its CoMP cooperation network elements in subframe n3+n UE（That is, the corresponding CoMP of SCell are measured Concentrate all CoMP cooperations network elements）CSI measure.Certainly, it also stopped the report of CSI measurements accordingly.

S760：In subframe n4（N4 is the integer more than or equal to 0）, CoMP measurement sets corresponding SCell needs are activated, base Stand and send the control signaling of activation SCell to UE, be used to indicate UE started to SCell according to the CoMP measurement sets and The CoMP cooperation network elements of SCell carry out CSI measurements.

S770：Start to SCell and its CoMP cooperation network elements in subframe n4+n UE（That is, the corresponding CoMP of SCell are measured Concentrate all CoMP cooperations network elements）CSI measure.Certainly, the report of CSI measurements is also begun to accordingly.

In the present embodiment, it is same to deactivate with the SCell of activation, if for deactivating with the SCell of activation not Same situation, principle are identical as above method.Since base station is that different serving cells configures different CoMP measurement sets, stopping Only with when starting CSI and measuring, based on CoMP measurement sets it is different.

In addition, being directed to CoMP scenes 1,2 and 3, wherein CoMP cooperates network element with different cell ID.At this point, CoMP The configuration of measurement set can be configured according to the RRM measurement reports of UE.That is, base station, which is UE, configures RRM measurement sets, and according to UE The RRM measurement reports reported are that serving cell configures CoMP measurement sets.With reference to Fig. 8, the one of CoMP measurement sets is described in detail Kind configuration method, as shown in figure 8, this method comprises the following steps：

S810：It is that UE configures RRM measurement sets that message is set in base station by RRC connection reconfigurations.

The RRM measurement sets include one of the following contents or its arbitrary combination：Measure mark（measId）, measurement object mark （measObjectId）And its corresponding measurement object configuration, measurement report configuration mark（reportConfigId）And its it is corresponding Measurement report configuration.Wherein：

The measurement object configuration includes one of the following contents or its arbitrary combination：Corresponding to PCell and SCell difference Carrier wave frequency information（For example, ARFCN）, Physical Cell Identifier（phySCellId）, cell index（cellIndex）.

The measurement report configuration includes one of the following contents or its arbitrary combination：Periodic measurement report period, event Trigger type and corresponding threshold value etc..

S820：UE sets to base station transmission RRC connection reconfigurations and completes message.

S830：UE is according to the configurations of RRM measurement sets and is based on CRS, measures one of the following contents or it arbitrary is combined： The Reference Signal Received Power of PCell（RSRP）, PCell Reference Signal Received Quality（RSRQ）, SCell RSRP, SCell RSRQ, PCell homogeneous-frequency adjacent-domain RSRP, PCell homogeneous-frequency adjacent-domain RSRQ, SCell homogeneous-frequency adjacent-domain RSRP, The RSRQ of the homogeneous-frequency adjacent-domain of SCell.In measurement report trigger condition（Period or event）RRM is sent to base station measure report after satisfaction It accuses（measurement report）.

The RRM measurement reports include one of the following contents or its arbitrary combination：Measure mark（measId）, PCell The Physical Cell Identifier of one or more homogeneous-frequency adjacent-domains（phySCellId）, PCell one or more homogeneous-frequency adjacent-domains the overall situation Cell ID（cellGlobalId）, SCell cell index（ServCellIndex）, the one or more of SCell it is adjacent with frequency The Physical Cell Identifier in area（phySCellId）.

S840：The RRM measurement reports that base station is reported according to UE, it is that SCell configures CoMP to set message by RRC connection reconfigurations Measurement set.For example, the base station selected homogeneous-frequency adjacent-domains SCell RSRP or RSRQ measurement result is more than one or more nets of pre-determined threshold CoMP cooperation network element of the member as SCell, is that SCell configures CoMP measurement sets according to the cooperation network element chosen, configuration The content of CoMP measurement sets referring to（1）In description.

To CoMP scenes 4, wherein CoMP cooperation network elements cell ID having the same.It is configured at this point, base station can be UE CoMP resource management collection（CoMP resource management set）, UE measures according to CoMP resource management collection, and Measurement report is sent, base station is that SCell configures CoMP measurement sets according to measurement report.With reference to Fig. 9, detailed description CoMP is surveyed A kind of configuration method of quantity set, as shown in figure 9, this method comprises the following steps：

S910：It is CoMP resource management collection of the UE configurations corresponding to SCell that message is set in base station by RRC connection reconfigurations.

The CoMP resource management collection includes one of the following contents or its arbitrary combination：Measure mark（measId）, measure pair As mark（measObjectId）And its corresponding measurement object configuration, measurement report configuration mark（reportConfigId）And Its corresponding measurement report configuration.Wherein：

The measurement object configuration includes one of the following contents or its arbitrary combination：Carrier frequency letter corresponding to SCell Breath（For example, ARFCN）, CSI-RS configuration identifiers（CSI-RS-ConfigId）, one or more CSI-RS configuration indexes, one Or multiple CSI-RS configuration informations.CSI-RS configuration information includes one of the following contents or its arbitrary combination：Antenna port configures （antennaPortsCount）, resource distribution（resourceConfig）, sub-frame configuration（subframeConfig）Etc. information. The measurement report configuration includes that following content is one or more：Periodic measurement report period, event trigger type and correspondence Threshold value etc..

S920：UE sets to base station transmission RRC connection reconfigurations and completes message.

S930：CoMP resource management collection of the UE corresponding to SCell configures and is based on CSI-RS, measures CoMP resource pipes The RSRP and/or RSRQ that reason concentrates each CSI-RS configurations corresponding.In measurement report trigger condition（Period or event）Meet Measurement report is sent to base station afterwards, measurement report includes one of the following contents or its arbitrary combination：Measure mark（measId）、 The cell index of SCell（ServCellIndex）, SCell one or more CSI-RS configuration identifiers（CSI-RS- ConfigId）, SCell one or more CSI-RS of one or more CSI-RS configuration identifiers corresponding RSRP, SCell match Set the corresponding RSRQ of mark.

Deactivate SCell after, UE to associated by SCell CoMP resource managements concentrate CSI-RS RSRP and/or RSRQ, which is measured, uses longer measurement period, such as measurement period when 5 times of SCell are active；Or stop RSRP and/or RSRQ based on CSI-RS are measured.

After activating SCell, the RSRP and/or RSRQ of the CSI-RS that UE concentrates the CoMP resource managements associated by SCell It measures and restores to measure using the measurement period of state of activation SCell；Or start based on the RSRP and/or RSRQ of CSI-RS It measures.

S940：The measurement report that base station is reported according to UE, it is that SCell configures CoMP surveys to set message by RRC connection reconfigurations Quantity set.For example, CSI-RS configuration identifiers are concentrated in the CoMP resource managements of base station selected SCell（CSI-RS-ConfigId）Institute is right RSRP the and/or RSRQ measurement results answered are more than one or more network elements of pre-determined threshold, the CoMP coorporative networks as SCell Member is that SCell configures CoMP measurement sets according to the cooperation network element chosen.CoMP measurement sets configure content referring to（2）In Description.

The embodiment of the present invention, which further provides, realizes the device embodiment of each step and method in above method embodiment.This Inventive embodiments can be applied to the base station in various communication systems or UE.

Referring to FIG. 10, a kind of functional block diagram of its base station provided by the embodiment of the present invention.As shown, the base It stands including transmission unit 101, control unit 102.Transmission unit 101 is used to send CoMP measurement sets to UE, and the CoMP is measured The corresponding serving cell of collection, and the CoMP measurement sets include the information of the serving cell and the CoMP of the serving cell The information of cooperation network element；Control unit 122 sends the control signaling for generating control signaling by transmission unit 101, Wherein, the control signaling is used to indicate the UE and is stopped according to the CoMP measurement sets or started to the serving cell CoMP cooperation network elements carry out CSI measurements.

It should be noted that when the serving cell of above example is PCell, since PCell needs to remain sharp State living, so there is no need to PCell be stopped or restarted CSI to measure.When above example serving cell be SCell, and When SCell needs are deactivated or activate, UE is in addition to needing to stop carrying out CSI measurements to the cooperation network element of SCell, it is also desirable to stop Only or start to carry out CSI measurements to SCell itself.Stop or start to SCell at this point, the control signaling is additionally operable to instruction UE Carry out CSI measurements.I.e. when the serving cell is SCell and needs to be deactivated or activate, control unit 102 is for generating Indicate that the UE stops or start the CoMP cooperation network elements to the SCell and the SCell according to the CoMP measurement sets Carry out the control signaling of CSI measurements；It is described or when the serving cell is PCell and needs to stop or start CoMP communication Control unit is used to generate the CoMP coorporative networks for indicating that the UE stops or starts according to the CoMP measurement sets to the PCell Member carries out the control signaling of CSI measurements.

In hardware realization, the above transmission unit 101 can be transmitter or transceiver, and the above control unit 102 can be with In the form of hardware or software form is embedded in the processor of base station.The processor can be central processing unit（CPU）, also may be used With microcontroller.

1 is please referred to Fig.1, by a kind of structural schematic diagram for base station that the embodiment of the present invention provides.As shown, the base It stands including transmitter 111, memory 112 and the processor being connect respectively with the transmitter 111 and the memory 112 113.Certainly, base station can also include receiver, antenna, baseband process component, middle radio frequency processing part, input/output unit etc. Universal component, no longer any restrictions herein of the embodiment of the present invention.

Wherein, CoMP measurement sets and batch processing code are stored in memory 112, the CoMP measurement sets correspond to a service Cell, and the CoMP measurement sets include the letter of the information of the serving cell and the CoMP cooperation network elements of the serving cell Breath, and processor 113 is used to call the program code stored in memory 112, for performing the following operations：

By transmitter 111 the CoMP measurement sets are sent to UE；

Control signaling is generated, the control signaling is used to indicate the UE and stops or start according to the CoMP measurement sets pair The CoMP cooperation network elements of the serving cell carry out CSI measurements；

By transmitter 111 control signaling is sent to the UE.

Processor executes program code and generates control signaling in a case where：When the serving cell is SCell and is needed When being deactivated or activating, control unit 102 indicates that the UE stops or starts according to the CoMP measurement sets for generating The control signaling of CSI measurements is carried out to the CoMP cooperation network elements of the SCell and the SCell；Or work as the serving cell For PCell and when needing to stop or start CoMP communication, described control unit indicates the UE according to the CoMP for generating Measurement set stops or starts to carry out the CoMP cooperation network elements of the PCell control signaling of CSI measurements.

It should be noted that base station shown in Figure 10 and Figure 11 can be used to implement times that above method embodiment is provided A kind of method, and cooperate with the CoMP of the serving cell about the information of the serving cell information of network element, the CSI are surveyed The description of amount, the CoMP measurement sets, the control signaling etc. is with above method embodiment, and details are not described herein.

2 are please referred to Fig.1, by a kind of functional block diagram for UE that the embodiment of the present invention provides.As shown, the UE packets Include receiving unit 121, measuring unit 122 and control unit 123.Wherein, receiving unit 121, for receiving base station transmission CoMP measurement sets, the CoMP measurement sets correspond to a serving cell, and the CoMP measurement sets include the letter of the serving cell The information of the CoMP of breath and serving cell cooperation network elements；The receiving unit 121 is additionally operable to receive the base station transmission Control signaling；Measuring unit 122, for according to the CoMP measurement sets to the serving cell and the serving cell CoMP cooperation network elements carry out CSI measurements；Control unit 123, for according to the control signaling and the CoMP measurement sets, control Measuring unit 122 stops or starts to carry out CSI measurements to the CoMP cooperation network elements of the serving cell.

When the serving cell is SCell and needs to be deactivated or when the serving cell is PCell and needs to stop Only when CoMP communication, described control unit 123 is used to control CoMP coorporative network of the stopping of measuring unit 122 to the serving cell Member carries out CSI measurements.When the serving cell is SCell and needs to be activated or when the serving cell is PCell and is needed When starting CoMP communication, described control unit 123 is used to control measuring unit 122 and starts to assist the CoMP of the serving cell Make network element and carries out CSI measurements.

In hardware realization, the above receiving unit 121 can be receiver or transceiver, the above measuring unit 122 and control Unit 123 processed can in the form of hardware or software form is embedded in the processor of base station.The processor can be CPU, also may be used With microcontroller.

3 are please referred to Fig.1, by a kind of structural schematic diagram for UE that the embodiment of the present invention provides.As shown, the UE packets Include receiver 131, memory 132 and the processor 133 being connect respectively with the receiver 131 and the memory 132.When So, UE can also include the general portions such as receiver, antenna, baseband process component, middle radio frequency processing part, input/output unit Part, no longer any restrictions herein of the embodiment of the present invention.

Wherein, memory 132 stores batch processing code, and processor 133 calls the program code stored in memory, uses The operation below executing：

The CoMP measurement sets that base station is sent are received by receiver 131, the CoMP measurement sets correspond to a serving cell, and The CoMP measurement sets include the information of the serving cell and the information of the CoMP cooperation network elements of the serving cell；

The control signaling that the base station is sent is received by receiver 131；

Stop or start the CoMP coorporative networks to the serving cell according to the control signaling and the CoMP measurement sets Member carries out CSI measurements.

It should be noted that UE shown in Figure 12 and Figure 13 can be used to implement any that above method embodiment is provided Kind of method, and the information for the network element that cooperates with the CoMP of the serving cell about the information of the serving cell, CSI surveys The description of amount, the CoMP measurement sets, the control signaling etc. is with above method embodiment, and details are not described herein.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be with It is realized with hardware realization or firmware realization or combination thereof mode.It when implemented in software, can be by above-mentioned function Storage in computer-readable medium or as on computer-readable medium one or more instructions or code be transmitted.Meter Calculation machine readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another Any medium of a place transmission computer program.Storage medium can be any usable medium that computer can access.With For this but it is not limited to：Computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk Storage medium or other magnetic storage apparatus or can be used in carry or store with instruction or data structure form expectation Program code and can be by any other medium of computer access.In addition.Any connection appropriate can become computer Readable medium.For example, if software is using coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line（DSL）Or such as The wireless technology of infrared ray, radio and microwave etc is transmitted from website, server or other remote sources, then coaxial electrical The wireless technology of cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, wireless and microwave etc is included in affiliated medium In fixing.As used in the present invention, disk（Disk）And dish（disc）Including compressing optical disc（CD）, laser disc, optical disc, number it is logical Use optical disc（DVD）, floppy disk and Blu-ray Disc, the usually magnetic replicate data of which disk, and dish is then with laser come optical duplication Data.Above combination above should also be as being included within the protection domain of computer-readable medium.

In short, the foregoing is merely the preferred embodiment of technical solution of the present invention, it is not intended to limit the present invention's Protection domain.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in Within protection scope of the present invention.

Claims

1. a kind of cooperative multi-point measurement method, including：

Base station sends cooperative multi-point CoMP measurement sets to user equipment (UE), and the CoMP measurement sets correspond to a serving cell, and institute State the information of the CoMP cooperation network elements of information and the serving cell that CoMP measurement sets include the serving cell；

When serving cell needs are deactivated or activate, the base station sends control signaling to the UE, the control Signaling be used to indicate the UE stop or start according to the CoMP measurement sets to the CoMP of the serving cell cooperate network element into Row channel state information CSI is measured；

The serving cell be auxiliary serving cell, and the control signaling be the auxiliary serving cell deactivation signaling or activation Signaling, wherein the deactivation signaling is used to indicate the UE and is stopped to the serving cell according to the CoMP measurement sets CoMP cooperation network elements carry out CSI measurements, and the activation signaling is used to indicate the UE and is started to institute according to the CoMP measurement sets The CoMP cooperation network elements for stating serving cell carry out CSI measurements.

2. according to the method described in claim 1, when the serving cell is auxiliary serving cell, the control signaling is additionally operable to Indicate that the UE stops or start to carry out CSI measurements to the auxiliary serving cell.

3. according to claim 1 to 2 any one of them method, the CoMP of the information of the serving cell and the serving cell The information of cooperation network element includes following one or its arbitrary combination：

Cell index, cell ID or frequency information.

4. according to claim 1 to 2 any one of them method, the CoMP measurement sets further include that CoMP measures set identifier.

5. according to claim 1 to 2 any one of them method, the CoMP measurement sets further include channel quality indicator (CQI) report Configuration is accused, CQI report configuration includes following one or its arbitrary combination：

CQI, pre-coding matrix instruction PMI, precoding type instruction PTI, order instruction RI.

6. according to claim 1 to 2 any one of them method, the control signaling is further used for indicating the UE according to institute CoMP measurement sets are stated to stop or start in predetermined subframe to carry out CSI measurements to the CoMP cooperation network elements of the serving cell.

7. according to claim 1 to 2 any one of them method, the base station sends the CoMP to UE by dedicated signaling and surveys Quantity set, the dedicated signaling include wireless resource control connection reconfiguration message or media access control layer control cell MAC CE。

8. according to claim 1 to 2 any one of them method, the control signaling is MAC CE.

9. a kind of cooperative multi-point measurement method, including：

User equipment (UE) receives the cooperative multi-point CoMP measurement sets that base station is sent, and the CoMP measurement sets correspond to a serving cell, And the CoMP measurement sets include the information of the serving cell and the information of the CoMP cooperation network elements of the serving cell；

The UE receives the control signaling that the base station is sent, and stopped according to the control signaling and the CoMP measurement sets or Start to carry out channel state information CSI measurements to the CoMP cooperation network elements of the serving cell；

The serving cell be auxiliary serving cell, and the control signaling be the auxiliary serving cell deactivation signaling or activation Signaling, and the UE stops the CoMP coorporative networks to the serving cell according to the deactivation signaling with the CoMP measurement sets Member carries out CSI measurements or the UE and starts to assist the CoMP of the serving cell with CoMP measurement sets according to the activation signaling Make network element and carries out CSI measurements.

10. according to the method described in claim 9, when the serving cell is auxiliary serving cell, the control signaling is also used Stop or start to carry out CSI measurements to the auxiliary serving cell in the instruction UE.

11. according to claim 9 to 10 any one of them method, the information of the serving cell and the serving cell The information of CoMP cooperation network elements includes following one or its arbitrary combination：

Cell index, cell ID or frequency information.

12. according to claim 9 to 10 any one of them method, the CoMP measurement sets further include that CoMP measures set identifier.

13. according to claim 9 to 10 any one of them method, the CoMP measurement sets further include channel quality indicator (CQI) Report configuration, CQI report configuration include following one or its arbitrary combination：

14. according to claim 9 to 10 any one of them method, the UE stops in predetermined subframe or starts to the auxiliary clothes The CoMP cooperation network elements for cell of being engaged in carry out CSI measurements.

15. according to claim 9 to 10 any one of them method, the UE receives the CoMP by dedicated signaling and measures Collection, the dedicated signaling include wireless resource control connection reconfiguration message or media access control layer control cell MAC CE.

16. according to claim 9 to 10 any one of them method, the control signaling is MAC CE.

17. a kind of base station, including：

Transmission unit, for sending cooperative multi-point CoMP measurement sets to user equipment (UE), the CoMP measurement sets correspond to a service Cell, and the CoMP measurement sets include the letter of the information of the serving cell and the CoMP cooperation network elements of the serving cell Breath；

Control unit, for when serving cell needs are deactivated or activate, generating control signaling, and pass through the hair Unit is sent to send the control signaling to the UE, wherein the control signaling is used to indicate the UE and is surveyed according to the CoMP Quantity set stops or starts to carry out channel state information CSI measurements to the CoMP cooperation network elements of the serving cell；

18. base station according to claim 17, when the serving cell is auxiliary serving cell, the control signaling is also used Stop or start to carry out CSI measurements to the auxiliary serving cell in the instruction UE.

19. according to claim 17 to 18 any one of them base station, the information of the serving cell and the serving cell The information of CoMP cooperation network elements includes following one or its arbitrary combination：

Cell index, cell ID or frequency information.

20. according to claim 17 to 18 any one of them base station, the CoMP measurement sets further include that CoMP measures set identifier.

21. according to claim 17 to 18 any one of them base station, the CoMP measurement sets further include channel quality indicator (CQI) Report configuration, CQI report configuration include following one or its arbitrary combination：

22. according to claim 17 to 18 any one of them base station, the control signaling is further used for indicating the UE roots Stop or start the CoMP cooperation network element progress CSI measurements to the serving cell in predetermined subframe according to the CoMP measurement sets.

23. according to claim 17 to 18 any one of them base station, the transmission unit is further used for passing through dedicated signaling CoMP measurement sets are sent to the UE, the dedicated signaling includes wireless resource control connection reconfiguration message or media access control Preparative layer controls cell MAC CE.

24. according to claim 17 to 18 any one of them base station, the control signaling is MAC CE.

25. a kind of user equipment (UE), including：

Receiving unit, the cooperative multi-point CoMP measurement sets for receiving base station transmission, it is small that the CoMP measurement sets correspond to a service Area, and the CoMP measurement sets include the letter of the information of the serving cell and the CoMP cooperation network elements of the serving cell Breath；

The receiving unit is additionally operable to receive the control signaling that the base station is sent；

Measuring unit is used for according to the CoMP measurement sets to the CoMP coorporative networks of the serving cell and the serving cell Member carries out CSI measurements；

Control unit, for according to the control signaling and the CoMP measurement sets, controlling the measuring unit and stopping or start Channel state information CSI measurements are carried out to the CoMP cooperation network elements of the serving cell；

The serving cell be auxiliary serving cell, and the control signaling be the auxiliary serving cell deactivation signaling or activation Signaling, described control unit are further used for controlling the measuring unit according to the deactivation signaling and the CoMP measurement sets Stop carrying out CSI measurements to the CoMP of serving cell cooperation network element, or be further used for according to the activation signaling and CoMP measurement sets control the measuring unit and start to carry out CSI measurements to the CoMP cooperation network elements of the serving cell.

26. UE according to claim 25, when the serving cell is auxiliary serving cell, described control unit is further Stop or start to carry out CSI measurements to the auxiliary serving cell for controlling the measuring unit.

27. according to claim 25 to 26 any one of them UE, the information of the serving cell and the serving cell The information of CoMP cooperation network elements includes following one or its arbitrary combination：

Cell index, cell ID or frequency information.

28. according to claim 25 to 26 any one of them UE, the CoMP measurement sets further include that CoMP measures set identifier.

29. according to claim 25 to 26 any one of them UE, the CoMP measurement sets further include channel quality indicator (CQI) report Configuration is accused, CQI report configuration includes following one or its arbitrary combination：

30. according to claim 25 to 26 any one of them UE, described control unit controls the measuring unit in pre- stator Frame stops or starts to carry out CSI measurements to the CoMP cooperation network elements of the auxiliary serving cell.

31. according to claim 25 to 26 any one of them UE, the receiving unit receives the CoMP by dedicated signaling Measurement set, the dedicated signaling include wireless resource control connection reconfiguration message or media access control layer control cell MAC CE。

32. according to claim 25 to 26 any one of them UE, the control signaling is MAC CE.