CN106105328A

CN106105328A - A kind of terminal, the network equipment and cooperative multipoint transmission collaboration set system of selection

Info

Publication number: CN106105328A
Application number: CN201480060094.XA
Authority: CN
Inventors: 刘斌; 杨春明
Original assignee: Huawei Technologies Co Ltd
Current assignee: Shi Gefu
Priority date: 2014-12-05
Filing date: 2014-12-05
Publication date: 2016-11-09
Anticipated expiration: 2034-12-05
Also published as: WO2016086407A1; CN106105328B

Abstract

The application relates to wireless communication technology field, particularly relates to a kind of terminal, the network equipment and the collaboration set system of selection of cooperative multipoint transmission CoMP, in order to reduce network equipment process load during selecting CoMP collaboration set.In a kind of terminal that the embodiment of the present invention provides, processing module, for carrying out descending measurement respectively to each node in the multiple nodes in the cooperative multipoint transmission CoMP Candidate Set of terminal；Transceiver module, the downlink measurements that the descending measurement for processing module being carried out obtains is sent to the network equipment, selects the foundation of the CoMP collaboration set of terminal as the network equipment from the CoMP Candidate Set of terminal.During owing to carrying out the selection of CoMP collaboration set, measuring and performed by terminal, the measurement result that the network equipment sends according to terminal selects CoMP collaboration set, alleviates the process load of the network equipment.

Description

A kind of terminal, the network equipment and cooperative multipoint transmission collaboration set system of selection

Technical field

The application is related to wireless communication technology field, more particularly to a kind of terminal, the network equipment and cooperative multipoint transmission collaboration set system of selection.

Background technology

Cooperative multipoint transmission (Coordinated Multi-Point transmission/reception, CoMP) is one of key technology in wireless communication system, average throughput available for lifting system, improves community marginal user performance etc..CoMP includes：Up (UpLink, UL) CoMP and descending (Down Link, DL) CoMP.

For UL CoMP, it can avoid disturbing using the coordinated scheduling of multinode or be received using joint, can obtain CoMP gains.For DL CoMP, (including selection is sent) can be sent using multi-node coordinated or joint, obtain CoMP gains, improve descending performance.Wherein, CoMP multiple nodes are participated in, the transceiver of the different districts of same base station can be included, such as：Remote Radio Unit (Radio Remote Unit, RRU), can also include the transceiver of the different districts of different base station, can also include the transceiver of the corresponding different radio coverage of same cell.

Wherein, for a terminal, the node set that may participate in CoMP cooperations is referred to as：Candidate Set (CoMP candidates set)；The node set for carrying out CoMP cooperations is referred to as：Collaboration set (CoMP cooperating set).Generally, the network equipment, such as base station are according to the result of wireless measurement, and selected section or whole nodes are as collaboration set from Candidate Set, to realize larger CoMP cooperative gains.So, how collaboration set is selected from Candidate Set, the CoMP gain larger for realizing is most important.

At present, the network equipment is when selecting collaboration set, generally the signal or up channel of terminal transmission are measured, according to measurement result, uplink signal strength is selected from Candidate Set or uplink signal-channel quality is preferably multiple or a node carries out joint reception or joint is sent.

Such as：In Long Term Evolution (Long Term Evolution, LTE) system, the network equipment controls such as detection reference signal (Sounding that each node is sent to user equipment (User Equipment, UE) Reference Signal) or demodulated reference signal (Demodulated Reference CHannle, DMRS Reference Signal Received Power (Reference Signal Reference Power),) or Signal Interference and Noise Ratio (Signal to Interference and Noise Ratio, SINR) is measured RSRP.The network equipment selects UE CoMP collaboration sets according to the result of above-mentioned measurement.

The process of the CoMP collaboration sets of above-mentioned network equipment selection terminal, because the network equipment generally will select CoMP collaboration sets for multiple terminals, need to be directed to each terminal, up channel or signal that each node in the CoMP Candidate Sets of the terminal is sent to terminal is controlled to measure, and the CoMP collaboration sets of terminal are selected according to measurement result, the processing load of base station measurement is higher, especially when the number of nodes in Candidate Set is more, and processing load is very high.

The content of the invention

The embodiment of the present invention provides a kind of terminal, the network equipment and CoMP collaboration set systems of selection, to reduce processing load of the network equipment during selection CoMP collaboration sets.

In a first aspect, the embodiment of the present invention provides a kind of terminal, including：

Processing module, descending measurement is carried out for each node in multiple nodes in the cooperative multipoint transmission CoMP Candidate Sets to the terminal respectively；

Transceiver module, the descending obtained downlink measurements that measure for the processing module to be carried out are sent to the network equipment, select the foundation of the CoMP collaboration sets of the terminal from the CoMP Candidate Sets of the terminal as the network equipment.

With reference in a first aspect, in the first possible implementation, the transceiver module is additionally operable to：

Before the processing module carries out the descending measurement, measurement configuration information is received at the network equipment, the measurement configuration information includes the configuration information for the downlink reference signal that each node in the multiple node is sent；

For each node, according to the configuration information of the node, the downlink reference signal of node transmission is received.

The processing module specifically for：The descending measurement is carried out respectively to the downlink reference signal that each node in the multiple node is sent.

With reference to the first possible implementation of first aspect, in second of possible implementation, the measurement configuration information includes：

The information for the physical resource that the downlink reference signal that each node in the multiple node is sent takes；

Wherein, the physical resource that the downlink reference signal that each node in the multiple node is sent takes is met：

The physical resource that the downlink reference signal that different nodes in the multiple node are sent takes is different.

With reference to second of possible implementation of first aspect, in the third possible implementation, the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

On the physical resource for the downlink reference signal that a node in the multiple node is sent, other nodes in the multiple node do not send signal.

With reference to second of possible implementation of first aspect, or the third possible implementation of first aspect, in the 4th kind of possible implementation, the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

The summation for being used to measure the physical resource of the downlink reference signal occupancy of interference and/or noise of the multiple node is minimum.

With reference to first aspect the first possible implementation any of to the 4th kind of possible implementation, in the 5th kind of possible implementation, communicated between the terminal and the multiple node based on Long Term Evolution LTE protocol；

If the terminal supports multiple channel status to indicate process CSI-Process measurements, the downlink reference signal is signal measurement resource SMR signals.

With reference to first aspect the first possible implementation any of to the 4th kind of possible implementation, in the 6th kind of possible implementation, communicated between the terminal and the multiple node based on Long Term Evolution LTE protocol；

If the multiple node belongs to different districts, and the terminal supports multiple CSI-Process measurements, Then the downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；

If the multiple node belongs to different districts, and the terminal does not support multiple CSI-Process to measure, then the downlink reference signal is cell specific reference signal CRS.

Second aspect, the embodiment of the present invention provides a kind of network equipment, including：

Transceiver module, downlink measurements for receiving first terminal transmission, the downlink measurements are that each node in multiple nodes that the first terminal includes to the cooperative multipoint transmission CoMP Candidate Sets of the first terminal carries out descending measurement and obtained respectively；

Processing module, for the downlink measurements received according to the transceiver module, from the CoMP Candidate Sets of the first terminal, selects the CoMP collaboration sets of the first terminal.

With reference to second aspect, in the first possible implementation, the transceiver module is additionally operable to：Before the downlink measurements are received, measurement configuration information is sent to the first terminal, the measurement configuration information includes the configuration information for the downlink reference signal that each node in the multiple node is sent；

The downlink measurements are that the downlink reference signal that the first terminal is sent to each node in the multiple node measures what is obtained respectively.

With reference to the first possible implementation of second aspect, in second of possible implementation, the measurement configuration information includes：

With reference to second of possible implementation of second aspect, in the third possible implementation, the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

It is described on the physical resource for the downlink reference signal that a node in the multiple node is sent Other nodes in multiple nodes do not send signal.

With reference to second of possible implementation of second aspect, or the third possible implementation, in the 4th kind of possible implementation, the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

With reference to second aspect the first possible implementation any of to the 4th kind of possible implementation, in the 5th kind of possible implementation, communicated between the first terminal and the multiple node based on Long Term Evolution LTE protocol；

If the first terminal supports multiple channel status to indicate process CSI-Process measurements, the downlink reference signal is signal measurement resource SMR signals.

With reference to second aspect the first possible implementation any of to the 4th kind of possible implementation, in the 6th kind of possible implementation, communicated between the first terminal and the multiple node based on Long Term Evolution LTE protocol；

If the multiple node belongs to different districts, and the first terminal supports multiple CSI-Process measurements, then the downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；

If the multiple node belongs to different districts, and the first terminal does not support multiple CSI-Process to measure, then the downlink reference signal is cell specific reference signal CRS.

With reference to second aspect, in the 7th kind of possible implementation, the multiple node is the part of nodes in the CoMP Candidate Sets of the first terminal；

The processing module is additionally operable to：Before the CoMP collaboration sets of the first terminal are selected, in addition to：Each node in other nodes in the CoMP Candidate Sets of the first terminal in addition to the multiple node is controlled, out-hole run is carried out to the first terminal；

The processing module specifically for：The out-hole run result of the out-hole run is carried out to the first terminal according to each node of the downlink measurements of reception, and other nodes, from the CoMP Candidate Sets of the first terminal, the CoMP collaboration sets of the first terminal are selected.

With reference to second aspect, in the 8th kind of possible implementation, the processing module is additionally operable to：

Each node carries out the out-hole run result of out-hole run to the second terminal in multiple nodes in the CoMP Candidate Sets of second terminal, and the CoMP collaboration sets of the second terminal are selected from the CoMP Candidate Sets of the second terminal.

With reference to the 8th kind of possible implementation of second aspect, in the 9th kind of possible implementation, the processing module is additionally operable to：Before the CoMP collaboration sets of the second terminal are selected,

Multiple CSI-Process whether are supported to measure according to the first terminal, and whether there is the node for belonging to same cell in the CoMP Candidate Sets of the first terminal, it is determined that needing the downlink measurements sent according to the first terminal, the CoMP collaboration sets of the first terminal are selected from the CoMP Candidate Sets of the first terminal；And

Multiple CSI-Process whether are supported to measure according to the second terminal, and whether there is the node for belonging to same cell in the CoMP Candidate Sets of the second terminal, it is determined that needing each node in multiple nodes in the CoMP Candidate Sets according to the second terminal to carry out the out-hole run result of the out-hole run to the second terminal, the CoMP collaboration sets of the second terminal are selected from the CoMP Candidate Sets of the second terminal.

With reference to the 8th kind of possible implementation of second aspect, in the tenth kind of possible implementation, the processing module is additionally operable to：When the processing load of current network device is more than default processing load threshold value, it is determined that

The downlink measurements sent according to the first terminal are needed, the CoMP collaboration sets of the first terminal are selected from the CoMP Candidate Sets of the first terminal.

The third aspect, the embodiment of the present invention provides a kind of cooperative multipoint transmission CoMP collaboration set systems of selection, including：

Each node in the multiple nodes included to the CoMP Candidate Sets of present terminal carries out descending measurement respectively；

The downlink measurements that the descending measurement is obtained are sent to the network equipment, select the foundation of the CoMP collaboration sets of the present terminal from the CoMP Candidate Sets of the present terminal as the network equipment.

With reference to the third aspect, in the first possible implementation, before the descending measurement is carried out, Also include：

Measurement configuration information is received at the network equipment, the measurement configuration information includes the configuration information for the downlink reference signal that each node in the multiple node is sent；

Descending measurement is carried out respectively to each node in multiple nodes in the CoMP Candidate Sets of present terminal, including：

The descending measurement is carried out respectively to the downlink reference signal that each node in the multiple node is sent.

With reference to the first possible implementation of the third aspect, in second of possible implementation, the measurement configuration information includes：

With reference to second of possible implementation of the third aspect, in the third possible implementation, the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

With reference to second of possible implementation of the third aspect, or the third possible implementation of the third aspect, in the 4th kind of possible implementation, the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

With reference to the third aspect the first possible implementation any of to the 4th kind of possible implementation, in the 5th kind of possible implementation, communicated between the present terminal and the multiple node based on Long Term Evolution LTE protocol；

If the present terminal supports multiple channel status to indicate process CSI-Process measurements, the downlink reference signal is signal measurement resource SMR signals.

With reference to the third aspect the first possible implementation any of to the 4th kind of possible implementation, in the 6th kind of possible implementation, communicated between the present terminal and the multiple node based on Long Term Evolution LTE protocol；

If the multiple node belongs to different districts, and the present terminal supports multiple CSI-Process measurements, then the downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；

If the multiple node belongs to different districts, and the present terminal does not support multiple CSI-Process to measure, then the downlink reference signal is cell specific reference signal CRS.

Fourth aspect, the embodiment of the present invention provides a kind of cooperative multipoint transmission CoMP collaboration set systems of selection, including：

Receive the downlink measurements that first terminal is sent, the downlink measurements are that each node in multiple nodes that the first terminal includes to the CoMP Candidate Sets of the first terminal carries out descending measurement and obtained respectively；

According to the downlink measurements of reception, from the CoMP Candidate Sets of the first terminal, the CoMP collaboration sets of the first terminal are selected.

With reference to fourth aspect, in the first possible implementation, before the downlink measurements are received, in addition to：

Measurement configuration information is sent to the first terminal, the measurement configuration information includes the configuration information for the downlink reference signal that each node in the multiple node is sent.

With reference to the first possible implementation of fourth aspect, in second of possible implementation, the measurement configuration information includes：

With reference to second of possible implementation of fourth aspect, in the third possible implementation, the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

With reference to second of possible implementation of fourth aspect, or the third possible implementation, in the 4th kind of possible implementation, the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

With reference to fourth aspect the first possible implementation any of to the 4th kind of possible implementation, in the 5th kind of possible implementation, communicated between the first terminal and the multiple node based on Long Term Evolution LTE protocol；

With reference to fourth aspect the first possible implementation any of to the 4th kind of possible implementation, in the 6th kind of possible implementation, communicated between the first terminal and the multiple node based on Long Term Evolution LTE protocol；

If the multiple node belongs to different districts, and the first terminal supports multiple CSI-Process measurements, then the downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；If the multiple node belongs to different districts, and the first terminal does not support multiple CSI-Process to measure, Then the downlink reference signal is cell specific reference signal CRS.

With reference to fourth aspect, in the 7th kind of possible implementation, the multiple node is the part of nodes in the CoMP Candidate Sets of the first terminal；

Before the CoMP collaboration sets of the first terminal are selected, in addition to：Each node in other nodes in the CoMP Candidate Sets of the first terminal in addition to the multiple node is controlled, out-hole run is carried out to the first terminal；

The CoMP collaboration sets of the first terminal are selected, including：The out-hole run result of the out-hole run is carried out to the first terminal according to each node of the downlink measurements of reception, and other nodes, from the CoMP Candidate Sets of the first terminal, the CoMP collaboration sets of the first terminal are selected.

With reference to fourth aspect, in the 8th kind of possible implementation, in addition to：

With reference to the 8th kind of possible implementation of fourth aspect, in the 9th kind of possible implementation, before the CoMP collaboration sets of the second terminal are selected, in addition to：

With reference to the 8th kind of possible implementation of fourth aspect, in the tenth kind of possible implementation, when the processing load of current network device is more than default processing load threshold value, it is determined that

To sum up, using terminal provided in an embodiment of the present invention, the network equipment and CoMP collaboration set systems of selection, due to carrying out during the selection of CoMP collaboration sets, measurement is performed by terminal, the measurement result that the network equipment is sent according to terminal selects CoMP collaboration sets, alleviates the processing load of the network equipment.

Brief description of the drawings

Fig. 1 is the structural representation of wireless communication system provided in an embodiment of the present invention；

Fig. 2A is the schematic diagram of UE progress multi-process CSI-Process measurements in example two；

Fig. 2 B are the RB pattern schematic diagrames of the downstream signal of RRU1 transmissions in example two；

Fig. 2 C are the RB pattern schematic diagrames of the downstream signal of RRU2 transmissions in example two；

Fig. 2 D are the RB pattern schematic diagrames of downstream signal that UE is received in example two；

Fig. 3 selects the schematic diagram that upstream or downstream are measured for the network equipment in example three according to own load；

Fig. 4 is the flow chart of example three；

The sub-process figure that Fig. 5 is step S401 in example three；

Fig. 6 is the flow chart of example four；

Fig. 7 is the structural representation of the first terminal provided in an embodiment of the present invention；

Fig. 8 is the structural representation of second of terminal provided in an embodiment of the present invention；

Fig. 9 is the structural representation of the first network equipment provided in an embodiment of the present invention；

Figure 10 is the structural representation of second of network equipment provided in an embodiment of the present invention；

Figure 11 is the flow chart of the first CoMP collaboration set system of selection provided in an embodiment of the present invention；

Figure 12 is the flow chart of second of CoMP collaboration set systems of selection provided in an embodiment of the present invention.

Embodiment

The embodiment of the present invention provides a kind of terminal, the network equipment and CoMP collaboration set systems of selection, to reduce processing load of the network equipment during selection CoMP collaboration sets.In terminal provided in an embodiment of the present invention, processing module, to each node in multiple nodes in the CoMP Candidate Sets of terminal point Descending measurement is not carried out；The downlink measurements that the descending measurement that processing module is carried out is obtained are sent to the network equipment by transceiver module, select the foundation of the CoMP collaboration sets of terminal from the CoMP Candidate Sets of terminal as the network equipment.Wherein, measurement is performed by terminal, and the measurement result that the network equipment is sent according to terminal selects CoMP collaboration sets, alleviates the processing load of the network equipment.

Below, the embodiment of the present invention is described in detail with reference to accompanying drawing.First, wireless communication system provided in an embodiment of the present invention is introduced, terminal provided in an embodiment of the present invention and the network equipment are then introduced respectively, finally, CoMP collaboration sets system of selection provided in an embodiment of the present invention is introduced.

Fig. 1 is the structural representation of wireless communication system provided in an embodiment of the present invention.As shown in figure 1, the system includes：Terminal 101 and the network equipment 102；Wherein,

Terminal 101, descending measurement is carried out for each node in multiple nodes in the CoMP Candidate Sets to itself respectively, and the downlink measurements that descending measurement is obtained are sent to the network equipment 102；

The network equipment 102, the downlink measurements sent for receiving terminal 101, and according to the downlink measurements of reception, the CoMP collaboration sets of terminal 101 are selected from the CoMP Candidate Sets of terminal 101.

Wherein, the agreement being based on that communicated between terminal 101 and each node includes but is not limited to following various communications protocols：Global system for mobile communications (Global System of Mobile communication, GSM), CDMA (Code Division Multiple Access, CDMA) IS-95, CDMA (Code Division Multiple Access, CDMA) 2000, TD SDMA (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA), WCDMA (Wideband Code Division Multiple Access, WCDMA), LTE, Long Term Evolution-enhancing (Long Term Evolution-Advanced, LTE-advanced), personal handyphone system (Personal Handy-phone System, PHS).

Wherein, the network equipment 102 can be base station, base station controller etc..Such as：When being based on LTE or LTE-advanced protocol communications between terminal 101 and each node, the network equipment 102 can be enode (evolved NodeB, eNB), or baseband processing unit (Base Band Unit in eNB, BBU), now each node is RRU；When being communicated between terminal 101 and each node based on gsm protocol, the network equipment 102 can be base station controller (Base Station Controller, BSC), now each node can be base station transceiver (Base Transceiver Station, BTS)；When terminal 101 and each node Between based on TD-SCDMA or WCDMA communication when, the network equipment 102 can be radio network controller (Radio Network Controller, RNC), each node can be node B (NodeB).

Alternatively, terminal 101 carries out the above-mentioned descending whole nodes measured in the CoMP Candidate Sets that targeted multiple nodes can be terminal 101, or part of nodes.

Alternatively, terminal 101 carries out descending measurement to the downlink reference signal that each node in above-mentioned multiple nodes in itself CoMP Candidate Set is sent, and measurement amount can be RSRP or SINR.

By taking RSRP as an example, SINR is similarly.The downlink reference signal that terminal 101 is sent to each above-mentioned node is carried out after descending measurement, and downlink measurements are sent to the network equipment 102, the RSRP values of the downlink reference signal of the obtained node transmitting measured including terminal 101；The network equipment 102 selects CoMP collaboration sets according to the RSRP values of each node received from the CoMP Candidate Sets of terminal 101.

Specifically, CoMP collaboration sets can be selected in the following way：

If the RSRP values that the terminal 101 that the network equipment 102 is received is obtained for the service node measurement of terminal 101 are RSRP_s_dl, the RSRP values RSRP_candidate_dl that some node measurement that the terminal 101 received is directed in CoMP Candidate Sets is obtained, if RSRP_candidate_dl-RSRP_s_dl >=P_Thr_dl, the network equipment 102 selects the node into the CoMP collaboration sets of terminal 101.Wherein, P_Thr_dl can be preset, such as：Can be a value in the range of (- 10dB, 0dB).Wherein, service node can be to receive or sending the signal intensity most strong node of terminal 101, and service node can change with the change of CoMP collaboration sets.

Or, the RSRP values that above-mentioned multiple node measurements that the terminal 101 received can also be directed in CoMP Candidate Sets by the network equipment 102 are obtained are ranked up, the maximum N number of node of selection RSRP values, constitute CoMP collaboration sets.

Alternatively, the network equipment 102 can send measurement configuration information before terminal 101 carries out descending measurement to terminal 101, and the measurement configuration information includes the configuration information for the downlink reference signal that each node in multiple nodes in the collaboration set of terminal 101 is sent.

Alternatively, measurement configuration information includes：The information for the physical resource that the downlink reference signal that each node in the plurality of node is sent takes, such as：Frequency, time slot, code word, symbol, antenna port Number etc. information.

Alternatively, if being based on Long Term Evolution (Long Term Evolution, LTE) protocol communication between terminal 101 and each node, the information for the physical resource that downlink reference signal takes can be the information for the running time-frequency resource that downlink reference signal takes, i.e.,：The information of resource element (Resource Element, RE).

Alternatively, in order that the downlink reference signal of each node transmission can be accurately measured by obtaining terminal 101, the physical resource that the downlink reference signal that each node in the plurality of node is sent takes is different, so that terminal 101 can accurately distinguish the downlink reference signal that different nodes are sent.

Wherein, the downlink reference signal that different nodes in the plurality of node are sent can in the way of code division multiplexing identical physical resource on holding time and in frequency, now, using autocorrelation performance and the preferable code word of cross correlation, can improve terminal 101 measure each node downlink reference signal measurement result accuracy.

Further, the physical resource that the downlink reference signal that each node in multiple nodes is sent takes also meets following conditions one：

On the physical resource for the downlink reference signal that a node in the plurality of node is sent, other nodes in the plurality of node do not send signal (no transimission), the interference that the downlink reference signal that the signal that so a node can be avoided to send as far as possible is sent to other nodes is caused.

Further, the physical resource that the downlink reference signal that each node in the plurality of node is sent takes can also meet following conditions two：

The summation for being used to measure the physical resource of the downlink reference signal occupancy of interference and/or noise of the plurality of node is minimum.

Alternatively, if being communicated between terminal 101 and above-mentioned multiple nodes based on LTE protocol, the downlink reference signal that above-mentioned multiple nodes are sent may include：Cell specific reference signal (Cell-specific Reference Signal, CRS), channel status indicate reference signal (Channel State Indication-Reference Signal, CSI-RS) etc..

Such as：If above-mentioned multiple nodes belong to different districts, and terminal 101 does not support multiple CSI-Process to measure, then the downlink reference signal can be CRS.

For another example：If above-mentioned multiple nodes belong to different districts, and terminal 101 supports multiple CSI-Process Measurement, then the downlink reference signal can be signal measurement resource (Signal Measurement Resource, SMR) signal in CRS, or CSI-RS.

The scheme that node sends downlink reference signal will be illustrated by taking example one and example two as an example below.

More than, the scheme that the network equipment 102 selects the CoMP collaboration sets of terminal 101 according to downlink measurements is described, and each node sends the scheme of downlink reference signal.Below, the alternative that the network equipment 102 determines metering system is introduced.

As previously described, when being communicated between each node and terminal based on LTE protocol, the current network equipment is generally by controlling each node measurement terminal in CoMP Candidate Sets to send the up channel/signals such as PRACH, PUCCH, SRS or DMRS, the CoMP collaboration sets of terminal are selected according to the measurement result of the out-hole run, network equipment implementation complexity is high.

In the embodiment of the present invention, an alternative is：The network equipment 102 selects the part terminal in multiple terminals to carry out out-hole run, and other-end carries out descending measurement, and to select the CoMP collaboration sets of these terminals, concrete scheme can be found in example three below.

Another option is that：The selected section terminal of the network equipment 102 carries out the combined measurement of uplink and downlink, i.e.,：For multiple nodes in the CoMP Candidate Sets of terminal, part of nodes uses out-hole run, and part of nodes uses descending measurement, for the terminal, and the network equipment 102 combines the result of out-hole run and the result of descending measurement, selects CoMP collaboration sets.Concrete scheme can be found in example four below.Alternatively, for the program, the network equipment 102 may be selected to use out-hole run or descending measurement for carrying out the other-end outside uplink and downlink combined measurement.

Example one

Example one illustrates the alternative for sending downlink reference signal by taking LTE Rel-10 and later release as an example.

For LTE Rel-10 and later release, UE supports CSI-RS measurements.Reference signal sequence in view of CSI-RS is bound with Physical Cell Identifier (Physical Cell ID, PCI) in itself.Therefore, include multiple RRU situation for a cell, in order that UE distinguishes the downlink reference signal that the different RRU of same cell are sent, alternatively, each RRU is launched non-zero power channel status by the way of the time-division and indicates reference signal (None Zero Power Channel State Indication-Reference Signal NZP CSI-RS), i.e. PCI identicals RRU launches NZP CSI-RS, UE in different time measurement RSRP or SINR and reported on different sub frames.

Alternatively, to improve measurement accuracy, zero energy channel status can be configured on adjacent R RU and indicates reference signal (Zero Power Channel State Indication-Reference Signal, ZP CSI-RS), the NZP CSI-RS of measurement are avoided to be disturbed by adjacent R RU Physical Downlink Shared Channel (Physical Downlink Shared CHannel, PDSCH).

Example two

For LTE Rel-11 and subsequent protocol version, can by the way of example two configurating downlink reference signal, carry out descending measurement.

For LTE Rel-11 and later release, UE supports the process CSI-Process (CSI- processes) of multiple CSI-RS measurements.CSI-process is by a signal measurement resource (Signal Measurement Resource,) and an interferometry resource (Interference Measurement Resource SMR, IMR) constitute, wherein, SMR is configured by NZP CSI-RS, and IMR is configured by ZP CSI-RS.

Generally, UE measures interference and noise power on IMR, channel status (CQI/PMI/RI) is measured on SMR, wherein, CQI is that channel quality guides (Channel Quality Indicator), PMI is pre-coding matrix index (Precoding Matrix Index), and RI is order instruction (Rank Indicator).Each CSI-process can be with separate configurations, and including but not limited to SMR and IMR cycle, biasing, pilot tone pattern, and UE report cycle of feedback, type, channel, such as：Physical Uplink Control Channel (Physical Uplink Control CHannel, PUCCH) or Physical Uplink Shared Channel (Physical Uplink Shared CHannel, PUSCH).

With reference to Fig. 2A, Fig. 2 B, Fig. 2 C and Fig. 2 D, in example two, UE CoMP Candidate Sets include the two nodes of RRU1 and RRU2, and UE is measured and reported to downlink reference signal SMR, and the measurement result that base station is reported according to UE selects CoMP collaboration sets.

In example two, in order to ensure the accuracy of UE measurement results, the physical resource that the downlink reference signal SMR that RRU1 and RRU2 are sent takes meets foregoing condition one and condition two, is described as follows：

With reference to Fig. 2A, UE is configured for two CSI-process：CSI process#1 and CSI process#2, measure RRU1 and RRU2 (measuring 2 ports) channel status respectively.Two CSI-process configuration modes referring to Fig. 2 B, Fig. 2 C and Fig. 2 D, wherein, Fig. 2 B be RRU1 send downstream signal (Resource Block, RB) pattern, Fig. 2 C be RRU2 send downstream signal RB patterns.From Fig. 2 B and Fig. 2 C：Each RRU is configured with a SMR (including 2 RE) and two ZP CSI-RS, two ZP CSI-RS, and one is IMR, including 4 RE, another is PDSCH silent (muting), also including 4 RE, to avoid interfering adjacent R RU SMR, such as：On the RE that the RRU1 SMR sent take, RRU2 does not send signal；On the RE that the RRU2 SMR sent take, RRU1 does not send signal, that is, meets above-mentioned condition one.

Fig. 2 D are the RB patterns for the downstream signal that UE is received, from Fig. 2 D, and the downstream signal that UE is received includes two SMR and IMR.

RRU1 and RRU2 is can be seen that from Fig. 2 B~Fig. 2 D and shares IMR so that as measurement interference and/or the downlink reference signal of noise, and the summation for the physical resource that IMR takes is minimum, that is, meets above-mentioned condition two.

So configured, then UE measures the interference outside RRU1 and RRU2 and noise power on IMR, then the channel status on RRU1 SMR between measurement and RRU1, such as：RSRP/CQI/PMI/RI etc. is measured, CSI-process#1 measurement result is formed, in CSI-process#1 feedback slot reporting base station.Equally, UE measures the interference outside RRU1 and RRU2 and noise power on IMR, then the channel status on RRU2 SMR between measurement and RRU2, CSI-process#2 measurement result is formed, in CSI-process2 feedback slot reporting base station.

The measurement result that base station is reported according to CSI-process#1 and CSI-process#2, it may be determined that UE to RRU1 channel status, and UE to RRU2 channel status, and accordingly for the UE select CoMP collaboration sets.

Similarly, the scene of two or more node is included for CoMP Candidate Sets, also interference, the purpose accurately measured can be avoided according to above-mentioned condition one and the configuration CSI-process of condition two to realize.

Alternatively, when CoMP candidate's centralized node numbers are more, measurement and feedback load for unconnected terminal, need to configure multiple CSI-process by way of the time-division for UE, so, after measurement feedback after a while, base station can grasp UE to each RRU channel status, also just can be with CoMP collaboration sets are preferably selected and safeguarded for UE.

Example three

In example three, the network equipment 102 is according to own load, such as：It is used to carry out load of baseband board of Base-Band Processing etc. in the network equipment, selected section or whole terminals carry out descending measurement, to select the CoMP collaboration sets of these terminals.

Alternatively, as shown in figure 3, when the network equipment 102 can reach at or above the first load-threshold T1 in own load, all or part of terminal of selection carries out descending measurement, and other-end carries out out-hole run；When own load is at or below the second load-threshold T2, out-hole run is carried out to all terminals.

Fig. 4 is the flow chart of example three.As shown in figure 4, the flow includes：

S401：The selected section terminal of the network equipment 102 carries out out-hole run, selects CoMP collaboration sets；

S402:The selection other-end of the network equipment 102 carries out descending measurement, and the measurement result reported according to terminal selects CoMP collaboration sets.

Wherein, step S401 and step S402 execution in no particular order order.Step S402 specifically includes following sub-step：

S4021：Multiple nodes in the Candidate Set of the control terminal of the network equipment 102 send downlink reference signal；

S4022：The network equipment 102 notifies selected terminal report measurement results；

S4023：The measurement result that the network equipment 102 is reported according to terminal selects the CoMP collaboration sets of the terminal.

Wherein, as shown in figure 5, step S401 may include following sub-step：

S501：Node in the CoMP Candidate Sets of the control terminal of the network equipment 102 carries out out-hole run to terminal, such as measurement amount is RSRP；

S502：The RSRP values that the network equipment 102 is obtained according to each node measurement, carry out CoMP collaboration set selections.

If the network equipment 102 carries out CoMP collaboration set selections using out-hole run, alternatively, for each terminal including terminal 101, the network equipment 102 can carry out CoMP collaboration set selections in the following way.

First, the network equipment 102 controls each node in the CoMP Candidate Sets of a terminal, right Up channel or channel that the terminal is sent, such as：SRS, DMRS, PUCCH or PRACH etc. carry out RSRP measurements；The RSRP values that the network equipment 102 is obtained according to each node measurement carry out CoMP collaboration set selections.

Such as：The RSRP values that the service node measurement of terminal 101 is obtained are RSRP_s_ul, the RSRP values that some node measurement is obtained in the CoMP Candidate Sets of terminal 101 are RSRP_candidate_ul, if RSRP_candidate_ul-RSRP_s_ul >=P_Thr_ul, the network equipment 102 selects the node into the CoMP collaboration sets of terminal 101.Wherein, P_Thr_ul can make an appointment, such as：Can be a value in the range of (- 10dB, 0dB).

Or, the RSRP values that the network equipment 102 can also obtain each node measurement in the Candidate Set of terminal 101 are ranked up, M maximum node of selection RSRP values, constitute CoMP collaboration sets.

In actual implementation, it would however also be possible to employ SINR measurements substitute RSRP measurements, carry out CoMP collaboration set selections.

Example four

In example four, the selected section terminal of the network equipment 102 carries out the combined measurement of uplink and downlink, i.e.,：For multiple nodes in the CoMP Candidate Sets of terminal, part of nodes uses out-hole run, and part of nodes uses descending measurement, for the terminal, and the network equipment 102 combines the result of out-hole run and the result of descending measurement, selects CoMP collaboration sets.

As shown in fig. 6, the flow of example four comprises the following steps：

S601：The network equipment 102 selects the part of nodes in the CoMP Candidate Sets of a terminal, controls these nodes to carry out out-hole run to the terminal；

S602：The network equipment 102 selects other nodes in the CoMP Candidate Sets of the terminal, and control terminal carries out descending measurement, and report measurement results to each node；

S603：The network equipment 102 selects the CoMP collaboration sets of terminal according to out-hole run result and downlink measurements.

Wherein, step S601 and step S602 execution in no particular order order.Step S602 specifically includes following sub-step：

S6021：The network equipment 102 selects other nodes in the CoMP Candidate Sets of the terminal；

S6022：Each node of the control selections of the network equipment 102 sends downlink reference signal；

S6023：The network equipment 102 notifies the terminal report measurement results.

In step S603, the network equipment 102 can use the CoMP collaboration sets of following Scheme Choice terminal：

Such as：By taking measurement amount RSRP as an example, the measurement such as other SINR amount is similarly, the up RSRP that the network equipment 102 obtains node measurement, that is RSRP_candidate_ul_combined, the up RSRP obtained with service node measurement, i.e. RSRP_s_ul_combined is compared, if meeting following condition, selects the node to enter terminal CoMP collaboration sets：

RSRP_candidate_ul_combined-RSRP_s_ul_combined≥P_Thr_ul_combined；

Terminal is directed to the descending RSRP that certain node measurement is obtained by the network equipment 102, that is RSRP_candidate_dl_combined with, the descending RSRP that service node measurement is obtained is directed to terminal, i.e. RSRP_s_dl_combined is compared, if meet following condition, the node is selected to enter the CoMP collaboration sets of terminal：

RSRP_candidate_dl_combined-RSRP_s_dl_combined≥P_Thr_dl_combined

Wherein, P_Thr_ul_combined and P_Thr_dl_combined can be preset, such as：Can for can be in the range of (- 10dB, 0dB) a value.

Or, (RSRP_candidate_ul_combined-RSRP_s_ul_combined) for each node that out-hole run can also be related to by the network equipment 102, sorted together with descending (RSRP_candidate_dl_combined-RSRP_s_dl_combined) for measuring each node being related to, the maximum N number of node of selection constitutes the CoMP collaboration sets of the terminal.

Based on same inventive concept, the embodiment of the present invention also provides two kinds of terminals, two kinds of network equipments and two kinds of CoMP collaboration set systems of selection.The implementation of two kinds of terminals refers to the implementation of above-mentioned terminals in wireless communication systems 101, the implementation of two kinds of network equipments refers to the implementation of the network equipment 102 in above-mentioned wireless communication system, and two kinds of CoMP collaboration sets systems of selection can be respectively with reference to the implementation of above-mentioned terminals in wireless communication systems 101 and the network equipment 102.Part is repeated to repeat no more.These terminals, the network equipment and method are introduced one by one below.

Fig. 7 is the structural representation of the first terminal provided in an embodiment of the present invention.As shown in fig. 7, the terminal includes：

Processing module 701, descending measurement is carried out for each node in multiple nodes in the CoMP Candidate Sets to terminal respectively；

Transceiver module 702, the downlink measurements that the descending measurement for processing module 701 to be carried out is obtained are sent to the network equipment, select the foundation of the CoMP collaboration sets of terminal from the CoMP Candidate Sets of terminal as the network equipment.

Alternatively, transceiver module 702 is additionally operable to：

Before processing module 701 carries out descending measurement, measurement configuration information is received at the network equipment, measurement configuration information includes the configuration information for the downlink reference signal that each node in multiple nodes is sent；

Processing module 701 specifically for：Descending measurement is carried out respectively to the downlink reference signal that each node in multiple nodes is sent.

Alternatively, measurement configuration information includes：

The information for the physical resource that the downlink reference signal that each node in multiple nodes is sent takes；

Wherein, the physical resource that the downlink reference signal that each node in multiple nodes is sent takes is met：

The physical resource that the downlink reference signal that different nodes in multiple nodes are sent takes is different.

Alternatively, the physical resource that the downlink reference signal that each node in multiple nodes is sent takes also is met：

On the physical resource for the downlink reference signal that a node in multiple nodes is sent, other nodes in multiple nodes do not send signal.

Multiple nodes be used for measure interference and/or noise downlink reference signal take physical resource it is total With it is minimum.

Alternatively, communicated between terminal and multiple nodes based on LTE protocol；

If terminal supports multiple CSI-Process measurements, downlink reference signal is signal measurement resource SMR signals.

If multiple nodes belong to different districts, and terminal supports multiple CSI-Process measurements, then downlink reference signal is SMR signals or CRS；

If multiple nodes belong to different districts, and terminal does not support multiple CSI-Process to measure, then downlink reference signal is CRS.

Fig. 8 is the structural representation of second of terminal provided in an embodiment of the present invention.As shown in figure 8, the terminal includes：

Processor 801, descending measurement is carried out for each node in multiple nodes in the CoMP Candidate Sets to terminal respectively；

Transceiver 802, the downlink measurements that the descending measurement for processor 801 to be carried out is obtained are sent to the network equipment, select the foundation of the CoMP collaboration sets of terminal from the CoMP Candidate Sets of terminal as the network equipment.

Fig. 9 is the structural representation of the first network equipment provided in an embodiment of the present invention.As shown in figure 9, the network equipment includes：

Transceiver module 901, the downlink measurements for receiving first terminal transmission, downlink measurements are that each node in multiple nodes that first terminal includes to the cooperative multipoint transmission CoMP Candidate Sets of first terminal carries out descending measurement and obtained respectively；

Processing module 902, for the downlink measurements received according to transceiver module 901, from the CoMP Candidate Sets of first terminal, selects the CoMP collaboration sets of first terminal.

Alternatively, transceiver module 901 is additionally operable to：Before downlink measurements are received, measurement configuration information is sent to first terminal, measurement configuration information includes the configuration information for the downlink reference signal that each node in multiple nodes is sent；

Downlink measurements are that first terminal is believed the descending reference that each node in multiple nodes is sent Measurement is obtained number respectively.

Alternatively, measurement configuration information includes：

The summation for being used to measure the physical resource of the downlink reference signal occupancy of interference and/or noise of multiple nodes is minimum.

Alternatively, communicated between first terminal and multiple nodes based on Long Term Evolution LTE protocol；

If first terminal supports multiple channel status to indicate process CSI-Process measurements, downlink reference signal is signal measurement resource SMR signals.

If multiple nodes belong to different districts, and first terminal supports multiple CSI-Process measurements, then downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；

If multiple nodes belong to different districts, and first terminal does not support multiple CSI-Process to measure, then downlink reference signal is cell specific reference signal CRS.

Alternatively, multiple nodes are the part of nodes in the CoMP Candidate Sets of first terminal；

Processing module 902 is additionally operable to：Before the CoMP collaboration sets of selection first terminal, in addition to：Each node in other nodes in the CoMP Candidate Sets of first terminal in addition to multiple nodes is controlled, out-hole run is carried out to first terminal；

Processing module 902 specifically for：According to the downlink measurements of reception, and other nodes is every One node carries out the out-hole run result of out-hole run to first terminal, from the CoMP Candidate Sets of first terminal, selects the CoMP collaboration sets of first terminal.

Alternatively, processing module 902 is additionally operable to：

Each node carries out the out-hole run result of out-hole run to second terminal in multiple nodes in the CoMP Candidate Sets of second terminal, and the CoMP collaboration sets of second terminal are selected from the CoMP Candidate Sets of second terminal.

Alternatively, processing module 902 is additionally operable to：Before the CoMP collaboration sets of selection second terminal,

Multiple CSI-Process whether are supported to measure according to first terminal, and whether there is the node for belonging to same cell in the CoMP Candidate Sets of first terminal, it is determined that needing the downlink measurements sent according to first terminal, the CoMP collaboration sets of first terminal are selected from the CoMP Candidate Sets of first terminal；And

Multiple CSI-Process whether are supported to measure according to second terminal, and whether there is the node for belonging to same cell in the CoMP Candidate Sets of second terminal, it is determined that needing each node in multiple nodes in the CoMP Candidate Sets according to second terminal to carry out the out-hole run result of out-hole run to second terminal, the CoMP collaboration sets of second terminal are selected from the CoMP Candidate Sets of second terminal.

Alternatively, processing module 902 is additionally operable to：When the processing load of current network device is more than default processing load threshold value, it is determined that needing the downlink measurements sent according to first terminal, the CoMP collaboration sets of first terminal are selected from the CoMP Candidate Sets of first terminal.

Figure 10 is the structural representation of second of network equipment provided in an embodiment of the present invention.As shown in Figure 10, the network equipment includes：

Transceiver 1001, the downlink measurements for receiving first terminal transmission, downlink measurements are that each node in multiple nodes that first terminal includes to the cooperative multipoint transmission CoMP Candidate Sets of first terminal carries out descending measurement and obtained respectively；

Processor 1002, for the downlink measurements received according to transceiver 1001, from the CoMP Candidate Sets of first terminal, selects the CoMP collaboration sets of first terminal.

Figure 11 is the flow chart of the first CoMP collaboration set system of selection provided in an embodiment of the present invention.As shown in figure 11, this method includes：

S1101：Each node in the multiple nodes included to the CoMP Candidate Sets of present terminal carries out descending measurement respectively；

S1102：The downlink measurements that descending measurement is obtained are sent to the network equipment, select the foundation of the CoMP collaboration sets of present terminal from the CoMP Candidate Sets of present terminal as the network equipment.

Alternatively, before step S1101 carries out descending measurement, in addition to：

Measurement configuration information is received at the network equipment, measurement configuration information includes the configuration information for the downlink reference signal that each node in multiple nodes is sent；

Descending measurement is carried out respectively to the downlink reference signal that each node in multiple nodes is sent.

Alternatively, measurement configuration information includes：

Alternatively, communicated between present terminal and multiple nodes based on Long Term Evolution LTE protocol；

If present terminal supports multiple channel status to indicate process CSI-Process measurements, descending reference letter Number be signal measurement resource SMR signals.

If multiple nodes belong to different districts, and present terminal supports multiple CSI-Process measurements, then downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；

If multiple nodes belong to different districts, and present terminal does not support multiple CSI-Process to measure, then downlink reference signal is cell specific reference signal CRS.

S1201：Receive the downlink measurements that first terminal is sent, downlink measurements are that each node in multiple nodes that first terminal includes to the CoMP Candidate Sets of first terminal carries out descending measurement and obtained respectively；

S1202：According to the downlink measurements of reception, from the CoMP Candidate Sets of first terminal, the CoMP collaboration sets of first terminal are selected.

Alternatively, before step S1201 receives downlink measurements, in addition to：

Measurement configuration information is sent to first terminal, measurement configuration information includes the configuration information for the downlink reference signal that each node in multiple nodes is sent.

Downlink measurements are first terminals to be measured the downlink reference signal that each node in multiple nodes is sent and obtains respectively.

Alternatively, measurement configuration information includes：

Alternatively, the physical resource that the downlink reference signal that each node in multiple nodes is sent takes Also meet：

If multiple nodes belong to different districts, and first terminal supports multiple CSI-Process measurements, then downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；If multiple nodes belong to different districts, and first terminal does not support multiple CSI-Process to measure, then downlink reference signal is cell specific reference signal CRS.

Before the CoMP collaboration sets that step S1202 selects first terminal, in addition to：Each node in other nodes in the CoMP Candidate Sets of first terminal in addition to multiple nodes is controlled, out-hole run is carried out to first terminal；

Step S1202 selects the CoMP collaboration sets of first terminal, including：The out-hole run result of out-hole run is carried out to first terminal according to each node of the downlink measurements of reception, and other nodes, from the CoMP Candidate Sets of first terminal, the CoMP collaboration sets of first terminal are selected.

Alternatively, in addition to：

Alternatively, before the CoMP collaboration sets that step S1202 selects second terminal, in addition to：

Alternatively, when the processing load of current network device is more than default processing load threshold value, it is determined that needing the downlink measurements sent according to first terminal, the CoMP collaboration sets of first terminal are selected from the CoMP Candidate Sets of first terminal.

Further, when configuring the downlink reference signal of measurement for terminal, by reasonably distributing the downlink reference signal that different nodes are sent, the physical resource that downlink reference signal takes is saved to realize, alternatively, the interference avoided between different nodes can also be realized simultaneously.

Further, the network equipment, when carrying out the selection of CoMP collaboration sets, can be selected to carry out the part of nodes of a terminal out-hole run, other nodes carry out descending measurement according to the load of itself；Or descending measurement is carried out to part terminal in the network equipment, other-end is also by the way of out-hole run.Realize and the suitable measuring method of selection is met according to the network equipment.

It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program product.Therefore, the form of the embodiment in terms of the present invention can use complete hardware embodiment, complete software embodiment or combine software and hardware.Moreover, the present invention can use the form for the computer program product implemented in one or more computer-usable storage mediums (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.) for wherein including computer usable program code.

The present invention is flow chart and/or block diagram with reference to method according to embodiments of the present invention, equipment (system) and computer program product to describe.It should be understood that can by the flow in each flow and/or square frame and flow chart and/or block diagram in computer program instructions implementation process figure and/or block diagram and/or square frame combination.These computer program instructions can be provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices to produce a machine so that logical The instruction for crossing computer or the computing device of other programmable data processing devices produces the device for being used for realizing the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.

These computer program instructions may be alternatively stored in the computer-readable memory that computer or other programmable data processing devices can be guided to work in a specific way, so that the instruction being stored in the computer-readable memory, which is produced, includes the manufacture of command device, the command device realizes the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices, so that series of operation steps is performed on computer or other programmable devices to produce computer implemented processing, so that the instruction performed on computer or other programmable devices provides the step of being used to realize the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creative concept, then other change and modification can be made to these embodiments.So, appended claims are intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification to the present invention without departing from the spirit and scope of the present invention.So, if these modifications and variations of the present invention belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.

Claims

A kind of terminal, it is characterised in that including：

Processing module, descending measurement is carried out for each node in multiple nodes in the cooperative multipoint transmission CoMP Candidate Sets to the terminal respectively；

Transceiver module, the descending obtained downlink measurements that measure for the processing module to be carried out are sent to the network equipment, select the foundation of the CoMP collaboration sets of the terminal from the CoMP Candidate Sets of the terminal as the network equipment.
Terminal as claimed in claim 1, it is characterised in that

The transceiver module is additionally operable to：

Before the processing module carries out the descending measurement, measurement configuration information is received at the network equipment, the measurement configuration information includes the configuration information for the downlink reference signal that each node in the multiple node is sent；

For each node, according to the configuration information of the node, the downlink reference signal of node transmission is received；

The processing module specifically for：The descending measurement is carried out respectively to the downlink reference signal that each node in the multiple node is sent.
Terminal as claimed in claim 2, it is characterised in that the measurement configuration information includes：

The information for the physical resource that the downlink reference signal that each node in the multiple node is sent takes；

Wherein, the physical resource that the downlink reference signal that each node in the multiple node is sent takes is met：

The physical resource that the downlink reference signal that different nodes in the multiple node are sent takes is different.
Terminal as claimed in claim 3, it is characterised in that the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

It is described many on the physical resource for the downlink reference signal that a node in the multiple node is sent Other nodes in individual node do not send signal.
Terminal as described in claim 3 or 4, it is characterised in that the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

The summation for being used to measure the physical resource of the downlink reference signal occupancy of interference and/or noise of the multiple node is minimum.
Terminal as described in any one of claim 2~5, it is characterised in that communicated between the terminal and the multiple node based on Long Term Evolution LTE protocol；

If the terminal supports multiple channel status to indicate process CSI-Process measurements, the downlink reference signal is signal measurement resource SMR signals.
Terminal as described in any one of claim 2~5, it is characterised in that communicated between the terminal and the multiple node based on Long Term Evolution LTE protocol；

If the multiple node belongs to different districts, and the terminal supports multiple CSI-Process measurements, then the downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；

If the multiple node belongs to different districts, and the terminal does not support multiple CSI-Process to measure, then the downlink reference signal is cell specific reference signal CRS.
A kind of network equipment, it is characterised in that including：

Transceiver module, downlink measurements for receiving first terminal transmission, the downlink measurements are that each node in multiple nodes that the first terminal includes to the cooperative multipoint transmission CoMP Candidate Sets of the first terminal carries out descending measurement and obtained respectively；

Processing module, for the downlink measurements received according to the transceiver module, from the CoMP Candidate Sets of the first terminal, selects the CoMP collaboration sets of the first terminal.
The network equipment as claimed in claim 8, it is characterised in that

The transceiver module is additionally operable to：Before the downlink measurements are received, measurement configuration information is sent to the first terminal, the measurement configuration information includes the configuration information for the downlink reference signal that each node in the multiple node is sent；

The downlink measurements are that the first terminal is sent to each node in the multiple node The downlink reference signal measure what is obtained respectively.
The network equipment as claimed in claim 9, it is characterised in that the measurement configuration information includes：

The information for the physical resource that the downlink reference signal that each node in the multiple node is sent takes；

Wherein, the physical resource that the downlink reference signal that each node in the multiple node is sent takes is met：

The physical resource that the downlink reference signal that different nodes in the multiple node are sent takes is different.
The network equipment as claimed in claim 10, it is characterised in that the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

On the physical resource for the downlink reference signal that a node in the multiple node is sent, other nodes in the multiple node do not send signal.
The network equipment as described in claim 10 or 11, it is characterised in that the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

The summation for being used to measure the physical resource of the downlink reference signal occupancy of interference and/or noise of the multiple node is minimum.
The network equipment as described in any one of claim 9~12, it is characterised in that communicated between the first terminal and the multiple node based on Long Term Evolution LTE protocol；

If the first terminal supports multiple channel status to indicate process CSI-Process measurements, the downlink reference signal is signal measurement resource SMR signals.
The network equipment as described in any one of claim 9~12, it is characterised in that communicated between the first terminal and the multiple node based on Long Term Evolution LTE protocol；

If the multiple node belongs to different districts, and the first terminal supports multiple CSI-Process measurements, then the downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；

If the multiple node belongs to different districts, and the first terminal does not support multiple CSI-Process to measure, then the downlink reference signal is cell specific reference signal CRS.
The network equipment as claimed in claim 8, it is characterised in that the multiple node is the part of nodes in the CoMP Candidate Sets of the first terminal；

The processing module is additionally operable to：Before the CoMP collaboration sets of the first terminal are selected, in addition to：Each node in other nodes in the CoMP Candidate Sets of the first terminal in addition to the multiple node is controlled, out-hole run is carried out to the first terminal；

The processing module specifically for：The out-hole run result of the out-hole run is carried out to the first terminal according to each node of the downlink measurements of reception, and other nodes, from the CoMP Candidate Sets of the first terminal, the CoMP collaboration sets of the first terminal are selected.
The network equipment as claimed in claim 8, it is characterised in that the processing module is additionally operable to：

Each node carries out the out-hole run result of out-hole run to the second terminal in multiple nodes in the CoMP Candidate Sets of second terminal, and the CoMP collaboration sets of the second terminal are selected from the CoMP Candidate Sets of the second terminal.
The network equipment as claimed in claim 16, it is characterised in that the processing module is additionally operable to：Before the CoMP collaboration sets of the second terminal are selected,

Multiple CSI-Process whether are supported to measure according to the first terminal, and whether there is the node for belonging to same cell in the CoMP Candidate Sets of the first terminal, it is determined that needing the downlink measurements sent according to the first terminal, the CoMP collaboration sets of the first terminal are selected from the CoMP Candidate Sets of the first terminal；And

Multiple CSI-Process whether are supported to measure according to the second terminal, and whether there is the node for belonging to same cell in the CoMP Candidate Sets of the second terminal, it is determined that needing each node in multiple nodes in the CoMP Candidate Sets according to the second terminal to carry out the out-hole run result of the out-hole run to the second terminal, the CoMP collaboration sets of the second terminal are selected from the CoMP Candidate Sets of the second terminal.
The network equipment as claimed in claim 16, it is characterised in that the processing module is additionally operable to：When the processing load of current network device is more than default processing load threshold value, it is determined that

The downlink measurements sent according to the first terminal are needed, from the first terminal The CoMP collaboration sets of the first terminal are selected in CoMP Candidate Sets.
A kind of cooperative multipoint transmission CoMP collaboration set systems of selection, it is characterised in that including：

Each node in the multiple nodes included to the CoMP Candidate Sets of present terminal carries out descending measurement respectively；

The downlink measurements that the descending measurement is obtained are sent to the network equipment, select the foundation of the CoMP collaboration sets of the present terminal from the CoMP Candidate Sets of the present terminal as the network equipment.
Method as claimed in claim 19, it is characterised in that

Before the descending measurement is carried out, in addition to：

Measurement configuration information is received at the network equipment, the measurement configuration information includes the configuration information for the downlink reference signal that each node in the multiple node is sent；

For each node, according to the configuration information of the node, the downlink reference signal of node transmission is received；

Descending measurement is carried out respectively to each node in multiple nodes in the CoMP Candidate Sets of present terminal, including：

The descending measurement is carried out respectively to the downlink reference signal that each node in the multiple node is sent.
Method as claimed in claim 20, it is characterised in that the measurement configuration information includes：

The information for the physical resource that the downlink reference signal that each node in the multiple node is sent takes；

Wherein, the physical resource that the downlink reference signal that each node in the multiple node is sent takes is met：

The physical resource that the downlink reference signal that different nodes in the multiple node are sent takes is different.
Method as claimed in claim 21, it is characterised in that the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

It is described many on the physical resource for the downlink reference signal that a node in the multiple node is sent Other nodes in individual node do not send signal.
Method as described in claim 21 or 22, it is characterised in that the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

The summation for being used to measure the physical resource of the downlink reference signal occupancy of interference and/or noise of the multiple node is minimum.
Method as described in any one of claim 20~23, it is characterised in that communicated between the present terminal and the multiple node based on Long Term Evolution LTE protocol；

If the present terminal supports multiple channel status to indicate process CSI-Process measurements, the downlink reference signal is signal measurement resource SMR signals.
Method as described in any one of claim 20~23, it is characterised in that communicated between the present terminal and the multiple node based on Long Term Evolution LTE protocol；

If the multiple node belongs to different districts, and the present terminal supports multiple CSI-Process measurements, then the downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；

If the multiple node belongs to different districts, and the present terminal does not support multiple CSI-Process to measure, then the downlink reference signal is cell specific reference signal CRS.
A kind of cooperative multipoint transmission CoMP collaboration set systems of selection, it is characterised in that including：

Receive the downlink measurements that first terminal is sent, the downlink measurements are that each node in multiple nodes that the first terminal includes to the CoMP Candidate Sets of the first terminal carries out descending measurement and obtained respectively；

According to the downlink measurements of reception, from the CoMP Candidate Sets of the first terminal, the CoMP collaboration sets of the first terminal are selected.
Method as claimed in claim 26, it is characterised in that

Before the downlink measurements are received, in addition to：

Measurement configuration information is sent to the first terminal, the measurement configuration information includes the configuration information for the downlink reference signal that each node in the multiple node is sent；

The downlink measurements are that the first terminal is sent to each node in the multiple node The downlink reference signal measure what is obtained respectively.
Method as claimed in claim 27, it is characterised in that the measurement configuration information includes：

The information for the physical resource that the downlink reference signal that each node in the multiple node is sent takes；

Wherein, the physical resource that the downlink reference signal that each node in the multiple node is sent takes is met：

The physical resource that the downlink reference signal that different nodes in the multiple node are sent takes is different.
Method as claimed in claim 28, it is characterised in that the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

On the physical resource for the downlink reference signal that a node in the multiple node is sent, other nodes in the multiple node do not send signal.
Method as described in claim 28 or 29, it is characterised in that the physical resource that the downlink reference signal that each node in the multiple node is sent takes also is met：

The summation for being used to measure the physical resource of the downlink reference signal occupancy of interference and/or noise of the multiple node is minimum.
Method as described in any one of claim 27~30, it is characterised in that communicated between the first terminal and the multiple node based on Long Term Evolution LTE protocol；

If the first terminal supports multiple channel status to indicate process CSI-Process measurements, the downlink reference signal is signal measurement resource SMR signals.
Method as described in any one of claim 27~30, it is characterised in that communicated between the first terminal and the multiple node based on Long Term Evolution LTE protocol；

If the multiple node belongs to different districts, and the first terminal supports multiple CSI-Process measurements, then the downlink reference signal is signal measurement resource SMR signals or cell specific reference signal CRS；If the multiple node belongs to different districts, and the first terminal does not support multiple CSI-Process to measure, then the downlink reference signal is cell specific reference signal CRS.
Method as claimed in claim 26, it is characterised in that the multiple node is the part of nodes in the CoMP Candidate Sets of the first terminal；

Before the CoMP collaboration sets of the first terminal are selected, in addition to：Each node in other nodes in the CoMP Candidate Sets of the first terminal in addition to the multiple node is controlled, out-hole run is carried out to the first terminal；

The CoMP collaboration sets of the first terminal are selected, including：The out-hole run result of the out-hole run is carried out to the first terminal according to each node of the downlink measurements of reception, and other nodes, from the CoMP Candidate Sets of the first terminal, the CoMP collaboration sets of the first terminal are selected.
Method as claimed in claim 26, it is characterised in that also include：

Each node carries out the out-hole run result of out-hole run to the second terminal in multiple nodes in the CoMP Candidate Sets of second terminal, and the CoMP collaboration sets of the second terminal are selected from the CoMP Candidate Sets of the second terminal.
Method as claimed in claim 34, it is characterised in that

Before the CoMP collaboration sets of the second terminal are selected, in addition to：

Multiple CSI-Process whether are supported to measure according to the first terminal, and whether there is the node for belonging to same cell in the CoMP Candidate Sets of the first terminal, it is determined that needing the downlink measurements sent according to the first terminal, the CoMP collaboration sets of the first terminal are selected from the CoMP Candidate Sets of the first terminal；And

Multiple CSI-Process whether are supported to measure according to the second terminal, and whether there is the node for belonging to same cell in the CoMP Candidate Sets of the second terminal, it is determined that needing each node in multiple nodes in the CoMP Candidate Sets according to the second terminal to carry out the out-hole run result of the out-hole run to the second terminal, the CoMP collaboration sets of the second terminal are selected from the CoMP Candidate Sets of the second terminal.
Method as claimed in claim 34, it is characterised in that when the processing load of current network device is more than default processing load threshold value, it is determined that

The downlink measurements sent according to the first terminal are needed, the CoMP collaboration sets of the first terminal are selected from the CoMP Candidate Sets of the first terminal.