CN108737046A

CN108737046A - Measurement pilot frequency collocation method and device in a kind of FD-MIMO systems

Info

Publication number: CN108737046A
Application number: CN201710261688.2A
Authority: CN
Inventors: 李晋声; 史满姣; 冯莉; 钟勤; 李迪
Original assignee: Putian Information Technology Co Ltd
Current assignee: Putian Information Technology Co Ltd
Priority date: 2017-04-20
Filing date: 2017-04-20
Publication date: 2018-11-02
Anticipated expiration: 2037-04-20
Also published as: CN108737046B

Abstract

The present invention provides the measurement pilot frequency collocation method and device in a kind of FD-MIMO systems, the method includes：After new UE enters network first resource and reporting channel information are distributed from non-cooperating resource pool according to existing way；Network determines whether the UE needs to participate in minizone cooperation figuration process；If the UE needs to participate in minizone cooperation figuration, network side then measures pilot tone to the UE from the specific cooperation measurement pilot resources of preset cooperation measurement pilot resources pond selection and reconfigures, while using UE configuration short cycles or macrocyclic measurement pattern described in Gray's type mixed base sequence pair.In this way, the present invention defines the pre-coding scheme of the precoding measurement pilot tone of cooperation transmitting cell using Gray's type mixed base composite sequence mode, CSI-RS and CSI-IM resource distributions and planning problem can be efficiently solved.

Description

Measurement pilot frequency collocation method and device in a kind of FD-MIMO systems

Technical field

The present invention relates in field of communication technology more particularly to a kind of FD-MIMO systems measurement pilot frequency collocation method and Device.

Background technology

Third generation partner program (The Third Generation Partnership, abbreviation 3GPP) standard is certainly Rel-11, which rises, introduces multiple cooperative multicast communication (Coordinated Multi-Point Transmission, abbreviation CoMP) skill Art enhances the system performance of LET-A.However, with recent active antenna and full dimension Multiple Input Multiple Output (Full Dimension Multi-Input-Multi-Output, abbreviation FD-MIMO) technology progress, LTE CoMP technologies have become It is necessary to be improved.This is because operator is disposing more networks and base station to meet the high speed of commercialization 4G networks Increase the demand of user data service, especially hot zones.In conjunction with the FD- of a large amount of bays of use of active antenna technology MIMO base station is also very likely to replace existing base station in hot zones or create due to that can enhance network capacity and covering Base station.Using the hot zones of intensive networking, network interferences are very serious caused by the overlapping covering of transfer point in this way, branch Holding the introducing of the FD-MIMO technologies of high-gain narrow beam will make such interference become higher, and extreme influence cell edge is used The data transmission at family.Therefore, the cooperation figuration technology for adapting to FD-MIMO systems will can significantly improve such situation.For This, 3GPP has already been through the WI (Work Term) that CoMP enhances again in RAN#75 meeting and approves and initiate a project, in view of FD- Desirable criterion work is carried out using CoMP technologies in MIMO networks.Up to the present, the companies such as Ericsson/Huawei tentatively emulate The result shows that great promotion can be obtained using the rate of the edge customer of the FD-MIMO systems of cooperation figuration, and participate in Coordination downlink launch point is more, and gain is higher.

Existing 3GPP agreements introduce CoMP technologies in Rel-11, meanwhile, R11 agreements introduce multi-process channel status letter The concept that (Channel State Information, abbreviation CSI) is reported is ceased, the measurement pilot tone under the conditions of this CoMP reports Method be it is a kind of support user to send network using joint simultaneously, cooperative scheduling and cooperate under a variety of CoMP technologies of figuration Row measures the universal measurement report method for carrying out CSI feedback.It is defined according to 3GPP, this CSI processes can be defined as being used for nothing It one or more NZP CSI-RS (non-zero power channel state information measures pilot tone) resources of line channel measurement and is surveyed for interfering The combination of CSI-IM (channel state information interference measurement) resource of amount.UE carries out wireless communication according to the measurement pilot resources of configuration Road and interference measurement provide CSI information feedback to network.Process maximum quantity as defined in agreement is 4 at present.

Existing this CSI reports frame that can be used for that the CoMP of cooperation figuration is supported to apply.A kind of possible technology way Diameter is exactly network both corresponds to a candidate cooperation transmission point to the measurement pilot tone of the UE each processes configured, in this way, UE can be with To the CSI information and interference information of network-feedback service transmission node and neighbouring cooperation transmission point.Network will be according to reporting information Seek the suitable figuration factor under certain Optimality Criteria by the forming algorithm that cooperates to eliminate or inhibit inter-cell interference, and really Determine the scheduling information of down channel.This technological approaches only needs to measure pilot tone on a small quantity, and measurement interval is shorter, and only network is negative Carry on a shoulder pole the relatively high realization of complexity.But agreement is only supported to indicate (Channel Quality by channel quality at present Indicator, abbreviation CQI) the implicit indirect gain interference information that reports, the CQI of this acquisition is simultaneously centainly corresponding true The disturbed condition at data transmission moment, so interference information is inaccurate.In addition, network side is also not aware that terminal truly solves Reconciliation decoding capability.Therefore, the effect realized using such technological approaches according to existing protocol is more limited.So Most producers generally tend to the technological approaches of another realization：One group exactly is configured to UE and corresponds to each cooperation transmission respectively The NZP CSI-RS resource of point and 1 CSI-IM resource for being used for interference measurement, and each process is then most 2 phases of UE hypothesis Adjacent cooperation transmission point (is not sent down under conditions of whether sending downlink signal for example, process number 0 corresponds to 2 neighboring transmission points Row signal), according to the channel information and interference information of all transfer points, feed back the CSI information under practical cooperation scene.In this way, The CQI of UE feedbacks can correspond directly to the channel transmission quality information under the conditions of specific cooperation in real scene.Certainly, this Technological approaches can only support the CoMP of most 3 cooperation transmissions points including UE service transmission points to apply.

3GPP introduces FD-MIMO technologies in R13 versions.FD-MIMO system uses are equipped with compared with multiple element antennas two dimension Aerial array can be carried out at the same time wave beam forming in horizontal and vertical 2 direction dimensions, can for greater flexibility obtain very not With the wave beam of array gain of different size.R13 FD-MIMO systems support 2 kinds of CSI feedbacks：Use non-precoded CSI-RS's The type B of the CSI-RS of type A and use figuration.It is fed back using type A, 1 CSI process is configured 1 NZP CSI-RS money Source, UE can feed back CSI information according to newly-designed 8/12/16 port code book.This CSI information provides horizontal and vertical side To the directional information of 2 dimensions.Using type B, 1 CSI process can configure K>=1NZP CSI-RS resource.At this moment, network Lateral root is according to the UE CSI-RS resource indexes (CRI) fed back and PMI information, the side of 2 dimensions of the same reconstructed horizontal and vertical direction To information.Theoretically, network can continue to use the CoMP frameworks of R11 in the configuration more a cooperation points of FD-MIMO, in conjunction with the CSI of R13 Feedback system realizes cooperation figuration.3GPP introduces the measurement for being combined Class A and Class B pilot tones in R14 versions again And it is compound report technology, make UE to FD-MIMO system descendings measure and report more flexible.

However, in order to support cooperation figuration technology in FD-MIMO systems, it is necessary to use a large amount of cooperation point measuring assemblies To obtain more accurate CQI.Such case, which also means that, to be needed to configure more CSI-IM resources pattern (ZP in other words to UE CSI-RSs UE) is made to carry out CSI and interference measurement to each cooperation point, this more means a large amount of CSI-IM resources or ZP CSI-RSs Configures and use to resource-inefficient rate.For example, carrying out cooperation feelings to certain UE 2 downlink points (TP1&2) of progress simplest In shape, at least need to configure 2 CSI-IM resources respectively to send out under 2 kinds of situations the transmission of TP1 downlinks and TP2 downlinks this UE Carry out the interference measurement of other downlink non-cooperating points generation.In addition, when UE needs 1 NZP CRS-RS resource to carry out CSI to TP1 When measurement, cooperation point TP2 just needs to configure ZP CSI-RS resource in same resource location to ensure that UE obtains correctly measurement letter Breath.It is also to need to be configured so that UE, which measures the CSI of TP2,.When needing more cooperation points in actual scene, existing configuration side Method just generates a large amount of CSI-IM resources and/or ZP CSI-RS resource expenses, and in the scene of intensive networking, such resource is matched Setting low the expense situation of efficiency will become extremely serious.Therefore, it when FD-MIMO systems carry out cooperation figuration, is highly desirable Consider configuration and the planing method of a kind of more economical reasonable and practicable CSI-IM resources and/or ZP CSI-RS resource.

Invention content

In view of the drawbacks of the prior art, the present invention provides in a kind of FD-MIMO systems measurement pilot frequency collocation method and Device can solve the problems, such as that the prior art generates a large amount of CSI-IM resources and/or ZP CSI-RS resource expenses.

In a first aspect, the present invention provides the measurement pilot frequency collocation method in a kind of FD-MIMO systems, the method packet It includes：

After user equipment (UE) enters network, network side measures the selection of pilot resources pond from preset non-cooperating and measures pilot tone money Source measures pilot frequency configuration to the UE, for the UE reporting channel informations；

Network side is according to the UE channel informations reported and network geographical topology information, UE motion states, business feature And ability information determines whether the UE needs to participate in minizone cooperation figuration；

If the UE needs to participate in minizone cooperation figuration, network side returns the measurement pilot resources for having distributed to the UE It receives to the non-cooperating and measures pilot resources pond, measuring the specific cooperation of pilot resources pond selection from preset cooperation measures pilot tone Resource measures pilot tone to the UE and reconfigures, while using UE configuration short cycles or length described in Gray's type mixed base sequence pair The measurement pattern in period, and issue CSI-RS measuring signals according to measuring configuration and measurement pattern；

Wherein, the non-cooperating measure pilot resources pond be to possibility to be determined participate in cooperation figuration new user or The running time-frequency resource of the confirmed user configuration for being not involved in cooperation figuration；It is to by confirming that the cooperation, which measures pilot resources pond, The quasi- user configurations for participating in cooperation figuration of multiple multiple UE of cell carry out the channel state information of figuration for the collaboration of multiple adjacent areas CSI measures the resource pool of pilot tone and CSI-IM interference measurement pilot tones.

Optionally, the network side moves shape according to the UE channel informations reported and network geographical topology information, UE State, business feature and ability information determine whether the UE needs to participate in minizone cooperation figuration, including：

Network side obtains subscriber channel broadband main beam direction information according to the spatial channel state information that the UE is fed back；

Network side is determined according to the downstream broadband main beam direction information that the UE is fed back believes the downlink of the UE Whether breath can judge that the UE needs to participate in minizone cooperation figuration to adjacent area generation interference if it can generate interference to adjacent area.

Optionally, described to measure the specific cooperation measurement pilot resources of pilot resources pond selection to described from preset cooperation UE measures pilot tone and reconfigures, including：

Network side measures the specific cooperation measurement pilot resources of pilot resources pond selection from preset cooperation and redistributes institute UE is stated for CSI and interference measurement, pilot configuration information will be measured and notified to the UE by downlink high level configuration information, and will The configuration information that pilot tone is measured to the down collaboration of user's distribution is transferred to by X2 interface other adjacent areas or the phase of collaborative work Adjacent launch point；

Wherein, the measurement pilot configuration information includes：CSI-RS defined parameters information and Gray's type mixing basic sequence are fixed The relevant information of justice；The relevant information includes that cell or launch point number, each transmitting of cooperation are participated in the measurement pilot tone Cell or the cooperation set numbers of launch point where the radix and the UE of point；The radix of each launch point represents the measurement Pilot tone uplink and downlink emission type.

Optionally, described to measure the specific cooperation measurement pilot resources of pilot resources pond selection to described from preset cooperation UE measures pilot tone and reconfigures, while using UE configuration short cycles or macrocyclic measurement described in Gray's type mixed base sequence pair Pattern, including：

If the UE needs to participate in minizone cooperation figuration, judge whether the UE is low speed user or big data quantity Download user；

If the UE, which is low speed user or big data quantity, downloads user, channel information and institute of the network side according to the UE Network geographical topology information is stated, selects resource allocation to the UE in cooperating resource pool from preset long period measurement pattern；

Download user if the UE is not low speed user or big data quantity, network side according to current network load situation, Select resource allocation to the UE in cooperating resource pool from preset short cycle measurement pattern；

Wherein, it includes the long period measurement pattern cooperation resource pool and institute that the preset cooperation, which measures pilot resources pond, State short cycle measurement pattern cooperation resource pool.

Optionally, channel information and the network geographical topology information of the network side according to the UE, from preset After the step of selection resource allocation gives the UE in long period measurement pattern cooperation resource pool, the method further includes：

It is more than 1 if distributing to and participating in whole number of cells of minizone cooperation in the resource of the UE, network cell or hair Exchange cooperative information between exit point, and resource carried out to new user and measures reporting schemes configuration, to existing subscriber carry out resource and Reporting schemes are measured to reconfigure；

Network side measures pilot tone in the measurement pilot resources transmitting zero energy ZP configured, for the UE to collaboration set outside Cell or the interference of launch point measure；

Network side emits corresponding different cooperation cells or transmitting in a time multiplexed way in the measurement pilot resources configured The Class A NZP of point measure pilot tone, so that the UE surveys the measurement pilot tone of its corresponding cooperation cell or launch point Amount, and periodic feedback RI+ broadband i₁；

The channel information that network side is reported according to all UE determines the candidate cooperation figuration factor, in the survey of the configuration It measures pilot resources and measures pilot tone according to K=1 Class B NZP, to measure the cooperation survey that limited manner emits different cooperation scenes Pilot tone is measured, so that UE is measured；

After UE, which completes all Class B NZP, measures pilot measurement, J channel quality instruction of maximum is selected CQI value and corresponding subscript feed back to network side, and network side selects the figuration factor of cooperation figuration according to the CQI that all UE are reported And code modulation mode, for follow-up coordination downlink data transmission, and repeat above-mentioned measurement process.

Optionally, the network side is according to current network load situation, from preset short cycle measurement pattern cooperation resource Select resource allocation to the UE in pond, including：

If current network load be high load condition, network side from preset first short cycle measurement pattern cooperate resource Select resource allocation to the UE in pond；

If current network load is not high load condition, network side cooperates from preset second short cycle measurement pattern and provides Select resource allocation to the UE in the pond of source.

Optionally, the network side selects resource allocation in then cooperating resource pool from preset first short cycle measurement pattern After the step of to the UE, the method further includes：

It is more than 1 if distributing to and participating in whole number of cells N of minizone cooperation in the resource of the UE, network cell or hair Exchange cooperative information between exit point, and resource carried out to new user and measures reporting schemes configuration, to existing subscriber carry out resource and Reporting schemes are measured to reconfigure；

Network side configured measurement pilot resources transmitting ZP measure pilot tone, for the UE to collaboration set outside cell Or the interference of launch point measures；

Network side emits corresponding different cooperation cells or transmitting in a time multiplexed way in the measurement pilot resources configured The Class A NZP of point measure pilot tone, so that the UE is to measure measurement of the limited manner to all cooperation cells or launch point Pilot tone measures, and the corresponding broadbands the RI+ i of prominent M cell is received in periodic feedback N₁, while showing feedback Interference measure；

Network side uses the figuration factor of forming algorithm determination cooperation figuration according to the feedback result of all UE received And code modulation mode, for follow-up coordination downlink data transmission, and repeat above-mentioned measurement process.

Optionally, the network side selects resource allocation in then cooperating resource pool from preset second short cycle measurement pattern After the step of to the UE, the method further includes：

Network side configured measurement pilot resources transmitting ZP measure resource, for the UE to collaboration set outside cell Or the interference of launch point measures；

Network side emits corresponding different cooperation cells or hair in a time multiplexed way in the measurement pilot resources of the configuration The Class A NZP of exit point measure pilot tone, so that the UE is to measure survey of the limited manner to all cooperation cells or launch point Amount pilot tone measures, and the corresponding broadbands the RI+ i of prominent M cell is received in periodic feedback N₁, while showing anti- Present interference measure；

Network side uses the figuration factor of forming algorithm determination cooperation figuration according to the feedback result of all UE received, And K=1 Class B are sent using cooperation mode with the figuration factor and measure pilot tone, and ordered using Downlink Control Information DCI Enabling triggering UE, to this, the allocycly measures pilot tone progress allocycly measurement and CQI is reported；

Network side determines the code modulation mode of cooperation figuration according to the reported result that UE is fed back, for follow-up coordination downlink The transmission of data, and repeat above-mentioned measurement process.

Second aspect, the present invention provides the measurement pilot frequency configuration device in a kind of FD-MIMO systems, described device packets It includes：

Dispensing unit, for after user equipment (UE) enters network, measuring pilot resources pond from preset non-cooperating and selecting It measures pilot resources and pilot frequency configuration is measured to the UE, for the UE reporting channel informations；

Cooperate judging unit, and the channel information and network geographical topology information, UE for being reported according to the UE move shape State, business feature and ability information determine whether the UE needs to participate in minizone cooperation figuration；

Unit is reconfigured, if needing to participate in minizone cooperation figuration for the UE, the measurement of the UE will have been distributed to Pilot resources are recycled to the non-cooperating and measure pilot resources pond, and the specific association of pilot resources pond selection is measured from preset cooperation Work measurement pilot resources measure pilot tone to the UE and reconfigure, while using UE configurations described in Gray's type mixed base sequence pair Short cycle or macrocyclic measurement pattern, and issue CSI-RS measuring signals according to measuring configuration and measurement pattern；

Optionally, the cooperation judging unit, is specifically used for：

Subscriber channel broadband main beam direction information is obtained according to the spatial channel state information of UE feedbacks；

According to the downstream broadband main beam direction information of UE feedbacks determine to the downlink information of the UE whether It can judge that the UE needs to participate in minizone cooperation figuration if it can generate interference to adjacent area to adjacent area generation interference.

As shown from the above technical solution, the present invention provides in a kind of FD-MIMO systems measurement pilot frequency collocation method and Device first distributes resource and reporting channel information according to existing way after new user enters network from non-cooperating resource pool；Net Network is determined according to the initial reporting channel informations of UE and network geographical topology information, UE motion states, business feature and ability information Whether UE needs to participate in minizone cooperation figuration process；If the UE needs to participate in minizone cooperation figuration, network side is from pre- If cooperation measure the specific cooperation of pilot resources ponds selection and measure pilot resources pilot tone is measured to the UE and reconfigure, together UE described in Shi Caiyong Gray's type mixed base sequence pairs configures short cycle or macrocyclic measurement pattern.In this way, the present invention by It maintains can to support as defined in existing protocol big to what is cooperated in advance on the basis of the measurement pilot frequency configuration resource overhead of 3 cell CoMP In 3 multiple downlink cells (or launch point) using the user to be cooperated of cooperation figuration uniformly configure same one group or Multigroup running time-frequency resource, the measurement for being emitted precoding simultaneously using cooperation mode by multiple downlink cells or downlink point are led Frequently, in a time division manner and single subframe measurements limitation arrangement terminal complete CSI information and interference measurement task.Due to using Gray Type mixed base composite sequence mode defines the pre-coding scheme of the precoding measurement pilot tone of cooperation transmitting cell, can effectively solve Certainly CSI-RS and CSI-IM resource distributions and planning problem.

Description of the drawings

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with Other attached drawings are obtained according to these figures.

Fig. 1 is that the flow of the measurement pilot frequency collocation method in a kind of FD-MIMO systems that one embodiment of the invention provides is shown It is intended to；

Fig. 2 is the flow of the measurement pilot frequency collocation method in a kind of FD-MIMO systems that another embodiment of the present invention provides Schematic diagram；

Fig. 3 is measurement process schematic diagram under the long period measurement pattern that another embodiment of the present invention provides；

Fig. 4 is measurement process schematic diagram under the first short cycle measurement pattern that another embodiment of the present invention provides；

Fig. 5 is measurement process schematic diagram under the second short cycle measurement pattern that another embodiment of the present invention provides；

Fig. 6 is the 4 cell application scenarios schematic diagram of typical indoor that another embodiment of the present invention provides；

Fig. 7 is that the structure of the measurement pilot frequency configuration device in a kind of FD-MIMO systems that one embodiment of the invention provides is shown It is intended to；

Fig. 8 is the structure diagram for a kind of electronic equipment that one embodiment of the invention provides.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Fig. 1 is the flow signal of the measurement pilot frequency collocation method in a kind of FD-MIMO systems in one embodiment of the invention Figure, as shown in Figure 1, described method includes following steps：

S1：After user equipment (UE) enters network, network side measures the selection measurement of pilot resources pond from preset non-cooperating and leads Frequency resource measures pilot frequency configuration to the UE, for the UE reporting channel informations.

Network side can be used for leading for CSI measurement pilot tones and CSI-IM interference measurements to what user distributed by existing first The running time-frequency resource pond of frequency configuration is divided into non-cooperating measurement pilot resources pond and cooperation measures 2, pond of pilot resources resource pool.Wherein, It is to participate in the new user of cooperation figuration to possibility to be determined or confirmed be not involved in that the non-cooperating, which measures pilot resources pond, (such as Intra-cell with adjacent area or adjacent transmission point need not cooperate with the user of figuration to the user of cooperation figuration, i.e., to the use The downlink signal user that other adjacent areas are not interfered with of family transmitting) configuration running time-frequency resource.Here new user one to be confirmed As UE be configured to the non-precoded CSI-RS of Class A obtain whole channel state feedbacks be for confirming to network No participation cooperates with figuration.Understandably, the network side in the present embodiment is the base station in network.

In this step, after new user's (access or switching) enters network, new user is configured first with existing CSI-RS With CSI reporting schemes (such as Class A (non-precoded) CSI reporting schemes defined in R13) from predefined miscoordination It measures and selects to measure pilot frequency configuration to community user on one group of running time-frequency resource in pilot resources, network is anti-according to user terminal Feedback, obtains the downlink channel condition information (including CRI/PMI/RI) of the user.

S2：Network side is special according to the UE channel informations reported and network geographical topology information, UE motion states, business Property and ability information determine the UE whether need participate in minizone cooperation figuration.

Specifically, network is according to the initial reporting channel informations of UE and network geographical topology information, UE motion states, business Characteristic and ability information etc. are determined generates interference to the whether possible adjacent area of the downlink signal of the user, if so, can determine that The UE needs to participate in minizone cooperation figuration process；Otherwise judge that the UE needs not participate in minizone cooperation figuration process.

S3：If the UE needs to participate in minizone cooperation figuration, network side provides the measurement pilot tone for having distributed to the UE Source is recycled to the non-cooperating and measures pilot resources pond, and measuring the specific cooperation of pilot resources pond selection from preset cooperation measures Pilot resources measure pilot tone to the UE and reconfigure, while configuring short cycle using UE described in Gray's type mixed base sequence pair Or macrocyclic measurement pattern, and issue CSI-RS measuring signals according to measuring configuration and measurement pattern.

Wherein, it is to participate in cooperation figuration to the multiple UE of multiple cells by confirming are quasi- that the cooperation, which measures pilot resources pond, User configuration carry out the channel state information CSI of figuration for the collaboration of multiple adjacent areas and measure pilot tone and CSI-IM interference measurements are led The resource pool of frequency.Every group of resource is the one group of running time-frequency resource for belonging to multiple UE of different community and sharing in this resource pool, is used The figuration CSI-RS resource of Class A or the Class B introduced in R13 configures, per cell in some downlink in each resource Frame time division multiplexing is the ZP CSI-RS for interference measurement, or the Class A sent for this cell and/or cooperation cell Non-precoded NZP CSI-RS, or the Class B NZP CSI- by selecting particular beam figuration in one group of wave beam to be selected RS, how all cells, which send CSI-RS, in certain specific sub-frame is united by Gray's type mixed base composite sequence of network provision One definition.

Specifically, it is that cooperation cell is defined in same time-frequency location that cooperation, which measures cooperation in pilot resources pond and measures pilot tone, Two-dimentional time and frequency measurement pilot resources are defined using first frequency division+time division way, transmitted by each time-frequency location by figuration It is with determining Gray's type mixed base sequence definition that NZP or ZP CSI-RS, which measure symbol,.

It should be noted that if the UE needs not participate in minizone cooperation figuration, then continue according to existing way Processing.

Understandably, as shown in Fig. 2, before step S1, the method further includes：

S0：Network side in advance by measure pilot tone be divided into non-cooperating measure pilot resources pond and cooperation measure pilot resources Pond.

Specifically, network can be used for measuring pilot tone and CSI-IM interference measurements for CSI to what user distributed by existing The running time-frequency resource pond of pilot frequency configuration is divided into 2, pond of the cooperation measurement pilot resources resource pool that non-cooperating measures pilot resources pond sum. Wherein, it is by short cycle measurement pattern cooperation resource pool and long period measurement pattern cooperation resource again that cooperation, which measures pilot resources pond, Pond forms；The resource that cooperation measures pilot resources pond is classified according to real network geographical topology information and SON processes, simultaneously It is corresponded with the beam direction of serving cell/launch point.Wherein, short cycle measurement pattern cooperation resource pool is sub-divided into first Short cycle measurement pattern cooperation resource pool and the second short cycle measurement pattern cooperation resource pool；Long period measurement pattern cooperation resource Pooled resources are multiplexed with the ZP CSI-RS of interference measurement or correspond to N number of different cooperation cells or transmitting in a time multiplexed way The Class A NZP of point measure pilot tone and the coordinated emission K=1Class B of the different cooperation scenes of simulation measure pilot tone, long period Measurement pattern increases compound reporting schemes according to similar existing 3GPP R14 agreements and measures and report, the 1st eMIMO- Type and the 2nd eMIMO-Type uses periodic report mode, the 1st eMIMO-Type measurement report as main serving cell or The resource of the channel measurement of launch point, the 2nd eMIMO-Type simulates different cooperation scenes, and the 2nd eMIMO-Type measurement is adopted J maximum CQI is measured and reports with limited configuration is measured；The resource of short cycle measurement pattern 1 is multiple in a time multiplexed way Pilot tone is measured with the ZP for interference measurement or is multiplexed with the Class A NZP of corresponding N number of different cooperation cells or launch point Pilot tone is measured, reports pattern that the channel of M largest cell and display is measured and report in N to report according to new period measurement Interference measurement；The ZP that 2 resource of short cycle measurement pattern is multiplexed with interference measurement in a time multiplexed way measures pilot tone or multiple Pilot tone is measured with the Class A for the N number of different cooperation cells of correspondence or launch point or is multiplexed with the K=1 of allocycly triggering Class B pilot tones, UE report pattern measurement to report the maximum cell channels of M CQI in N and show according to new period measurement Interference measurement is reported, then reports pattern to measure and report corresponding CQI information using allocycly measurement.

In the present embodiment, after new user enters network first according to existing way from non-cooperating resource pool distribute resource and on Report channel information；Network is according to the initial reporting channel informations of UE and network geographical topology information, UE motion states, business feature and Ability information determines whether UE needs to participate in minizone cooperation figuration process；If the UE needs to participate in minizone cooperation figuration, Network side then measures the specific cooperation measurement pilot resources of pilot resources pond selection from preset cooperation and is measured to the UE Pilot tone reconfigures, while using UE configuration short cycles or macrocyclic measurement pattern described in Gray's type mixed base sequence pair.In this way, The present embodiment passes through on the basis for the measurement pilot frequency configuration resource overhead for maintaining to support 3 cell CoMP as defined in existing protocol On the users to be cooperated using cooperation figuration of multiple downlink cells (or launch point) to being cooperated in advance more than 3 uniformly match Same one or more groups of running time-frequency resources are set, are emitted simultaneously in advance using cooperation mode by multiple downlink cells or downlink point The measurement pilot tone of coding, in a time division manner and single subframe measurements limitation arrangement terminal complete CSI information and interference measurement task. Precoding due to defining cooperation transmitting cell using Gray's type mixed base composite sequence mode measures the pre-coding scheme of pilot tone, CSI-RS and CSI-IM resource distributions and planning problem can be efficiently solved.

Specifically, in an embodiment of the present invention, above-mentioned steps S3 specifically includes following sub-step：

S31：If the UE needs to participate in minizone cooperation figuration, judge whether the UE is low speed user or big number User is downloaded according to amount.

S32：User is downloaded if the UE is low speed user or big data quantity, and network side is according to the channel information of the UE And the network geographical topology information, select resource allocation to described in cooperating resource pool from preset long period measurement pattern UE。

It should be noted that selecting resource point in cooperating resource pool from preset long period measurement pattern described in this step UE described in dispensing is referred specifically to：From preset long period measurement pattern cooperation resource pool selection resource utilization it is minimum and with the main waves of UE The corresponding resources of Shu Fangxiang, and distribute to user.

S33：If the UE, which is not low speed user or big data quantity, downloads user, network side is according to current network load feelings Condition selects resource allocation to the UE in cooperating resource pool from preset short cycle measurement pattern.

Further, after the step S32, the method further includes following steps：

If A01, the whole number of cells for distributing to participation minizone cooperation in the resource of the UE are more than 1, network cell Or cooperative information is exchanged between launch point, and resource is carried out to new user and measures reporting schemes configuration, existing subscriber is provided Source and measurement reporting schemes reconfigure.

It should be noted that if the whole number of cells N for distributing to participation minizone cooperation in the resource of the UE are 1, Network side is then pressed existing pilot frequency configuration mode and is configured to UE, and UE is then measured and reported according to existing mode.And if distributing It is more than 1 to the whole number of cells for participating in minizone cooperation in the resource of the UE, is intercoursed between network cell or launch point Cooperative information, according to actual needs, to new user carry out resource and measure reporting schemes configuration, to existing subscriber carry out resource and It measures reporting schemes to reconfigure, is then transferred into step A02 and continues to handle.

A02, network side measure pilot tone in the measurement pilot resources transmitting zero energy ZP configured, so that the UE is to cooperation The interference of cell or launch point outside collection measures.

A03, network side the measurement pilot resources configured emit in a time multiplexed way corresponding different cooperation cells or The Class A NZP of launch point measure pilot tone, for the UE to the measurement pilot tone of its corresponding cooperation cell or launch point into Row measures, and periodic feedback RI+ broadband i₁。

The channel information that A04, network side are reported according to all UE determines the candidate cooperation figuration factor, in the configuration Measurement pilot resources measure pilot tone according to K=1 Class B NZP, to measure the association that limited manner emits different cooperation scenes Make measurement pilot tone, so that UE is measured.

A05, after UE completes all Class B NZP and measures pilot measurement, select J channel quality of maximum to refer to Show that CQI value and corresponding subscript feed back to network side, network side according to all UE CQI selection cooperation figurations reported figuration because Son and code modulation mode, for follow-up coordination downlink data transmission, and go to step AO1 and repeat above-mentioned measurement process.

Wherein, UE measures the multiple best CQI informations of pilot measurement feedback to cooperation figuration under multiple cooperation scenes to simulation Network can be made to accurately determine the cooperation figuration factor and code modulation mode.

In the present embodiment, network side selects resource allocation to described in cooperating resource pool from preset long period measurement pattern After UE, step A01 is gone to A05 processing, measurement process is as shown in Figure 3 (with 4 cooperation cells under long period measurement pattern For).

Specifically, in an embodiment of the present invention, since short cycle measurement pattern cooperation resource pool can be sub-divided into first Short cycle measurement pattern cooperation resource pool and the second short cycle measurement pattern cooperation resource pool, then above-mentioned steps S33, can specifically wrap Include following sub-step：

S331：If current network load is high load condition, network side is assisted from preset first short cycle measurement pattern Make to select resource allocation to the UE in resource pool.

S332：If current network load is not high load condition, network side is from preset second short cycle measurement pattern Selection resource allocation gives the UE in cooperation resource pool.

Specifically, if UE belongs to low speed user or big data quantity downloading service user, mould is measured from long period Formula cooperate resource pool in selection resource allocation to user, otherwise according to network load condition from short cycle measurement pattern cooperate resource Select resource allocation to the UE in pond.

Specifically, if current network load is high load condition, from the cooperation resource pool choosing of the first short cycle measurement pattern Select appropriate resource (i.e. resource utilization it is minimum and with UE main beam directions corresponding resource) distribute to user；Otherwise, short from second Periodic measurement mode cooperate resource pool select appropriate resource (i.e. resource utilization it is minimum and with UE main beam directions corresponding resource) Distribute to user.

Further, after above-mentioned steps S331, the method further includes：

If B01, the whole number of cells N for distributing to participation minizone cooperation in the resource of the UE are more than 1, network cell Or cooperative information is exchanged between launch point, and resource is carried out to new user and measures reporting schemes configuration, existing subscriber is provided Source and measurement reporting schemes reconfigure.

It should be noted that if the whole number of cells for distributing to participation minizone cooperation in the resource of the UE are 1, net Network configures UE according to existing pilot frequency configuration mode, and UE is measured and reported according to existing mode；If joined in this resource The whole number of cells N to cooperate with minizone are more than 1, cooperative information are intercoursed between network cell or launch point, according to reality It needs, resource is carried out to new user and measures reporting schemes configuration, resource is carried out to existing subscriber and measures reporting schemes re-matching It sets, is then transferred into step B02 and continues to handle.

B02, network side configured measurement pilot resources transmitting ZP measure pilot tone, for the UE to collaboration set outside The interference of cell or launch point measures.

B03, network side the measurement pilot resources configured emit in a time multiplexed way corresponding different cooperation cells or The Class A NZP of launch point measure pilot tone, so that the UE is to measure limited manner to all cooperation cells or launch point It measures pilot tone to measure, and receives the corresponding broadbands the RI+ i of prominent M cell in periodic feedback N₁, show simultaneously The interference measure obtained in feedback step B02.

Wherein, UE report the broadband of limited multiple cell/launch point to report information that the interference measurement of display is combined to report can be with Shorten the reporting measurement period, high speed or short burst service is supported to participate in cooperation figuration.

B04, network side use the figuration of forming algorithm determination cooperation figuration according to the feedback result of all UE received The factor and code modulation mode for follow-up coordination downlink data transmission, and go to step B01 and repeat above-mentioned measured Journey.

In the present embodiment, if current network load is high load condition, from the first short cycle measurement pattern cooperation resource Pond select appropriate resource (i.e. resource utilization it is minimum and with UE main beam directions corresponding resource) distribute to the UE after, go to step Measurement process is as shown in Figure 4 (by taking 4 cooperation cells as an example) to B05 processing, under the first short cycle measurement pattern by rapid B01.

Further, after above-mentioned steps S332, the method further includes：

If C01, the whole number of cells N for distributing to participation minizone cooperation in the resource of the UE are more than 1, network cell Or cooperative information is exchanged between launch point, and resource is carried out to new user and measures reporting schemes configuration, existing subscriber is provided Source and measurement reporting schemes reconfigure.

It should be noted that if the whole number of cells for distributing to participation minizone cooperation in the resource of the UE are 1, net Network configures UE according to existing pilot frequency configuration mode, and UE is measured and reported according to existing mode；If joined in this resource The whole number of cells N to cooperate with minizone are more than 1, cooperative information are intercoursed between network cell or launch point, according to reality It needs, resource is carried out to new user and measures reporting schemes configuration, resource is carried out to existing subscriber and measures reporting schemes re-matching It sets, is then transferred into step C02 and continues to handle.

C02, network side configured measurement pilot resources transmitting ZP measure resource, for the UE to collaboration set outside The interference of cell or launch point measures.

C03, network side emit corresponding different cooperation cells in a time multiplexed way in the measurement pilot resources of the configuration Or the Class A NZP of launch point measure pilot tone, so that the UE is to measure limited manner to all cooperation cells or launch point Measurement pilot tone measure, and the corresponding broadbands the RI+ i of prominent M cell is received in periodic feedback N₁, show simultaneously Show the interference measure that feedback step C02 is obtained.

C04, network side use the figuration of forming algorithm determination cooperation figuration according to the feedback result of all UE received The factor, and K=1 Class B are sent using cooperation mode with the figuration factor and measure pilot tone, and utilize Downlink Control Information To this, the allocycly measures pilot tone progress allocycly measurement to DCI command triggers UE and CQI is reported.

C05, network side determine the code modulation mode of cooperation figuration according to the reported result that UE is fed back, for subsequently cooperating The transmission of downlink data, and go to step C01 and repeat above-mentioned measurement process.

In the present embodiment, selecting appropriate resource from the second short cycle measurement pattern cooperation resource pool, (i.e. resource utilization is most It is low and with UE main beam directions corresponding resource) distribute to the UE after, go to step C01 to C05 processing, the second short cycle Measurement process is (by taking 4 cooperation cells as an example) as shown in Figure 5 under measurement pattern.

It can be supported to 3 kinds of measurement patterns of user configuration, to support different motion it can be seen that cooperation measures pilot frequency configuration The UE of speed or different business carries out cooperation measurement.

In real network, network can according to actual needs, using this Gray's type mixed base sequence definition mode pair Different UE groups configuration short cycles or macrocyclic measurement pattern obtain in such a way that length/short cycle combines in network side and the sides UE Obtain the compromise of performance and system complexity most preferably.For example, in macrocell environment, what network can move multiple cell low speed UE forms cooperative groups and configures long period measurement pattern, and is configured to short cycle to the cooperation UE groups of movement speed higher UE compositions Measurement pattern can make UE obtain more preferable cooperation figuration effect in different movement speed scenes.Indoors under hot spot scene, institute There are UE movement speeds relatively low, different groupings at this moment can be carried out according to the business feature of UE and configures long or short cycle measuring mould Formula, such as the cooperative groups being made of the UE of the short burst service of each cell can be configured to short cycle measurement pattern, and to by each small The cooperative groups of the UE compositions of area's big data business can be configured to long period pattern, can make UE under different business scene in this way Preferably cooperation figuration effect is obtained, while the system complexity of network side/sides UE can be made to control in lower level.

Specifically, in an embodiment of the present invention, above-mentioned steps S2 specifically includes following sub-step：

S21：Network side obtains subscriber channel broadband main beam direction according to the spatial channel state information that the UE is fed back Information.

Specifically, network can know subscriber channel broadband main beam according to the spatial channel state information of new user feedback Directional information, the index value of DFT codebook matrix of this directional information generally by one group of correspondence both horizontally and vertically Gather to express.

S22：Network side is determined according to the downstream broadband main beam direction information that the UE is fed back and is sent out the downlink of the UE It penetrates whether information can generate interference to adjacent area, judges that the UE needs the cooperation of participation minizone to assign if it can generate interference to adjacent area Shape.

Specifically, network can be determined according to the downstream broadband main beam direction information of new user feedback under the user Whether row transmitting signal may adjacent area generation interference；If it is then network returns the allocated measurement pilot resources of the user Non-measured pilot resources pond is received, then selects specific resource to redistribute the user by cooperative pilot resources pond and is used for CSI and interference measurement, being reconfigured information to the measurement pilot resources of user will be notified by downlink high level configuration information to UE, right The user distribution downlink cooperative pilot tone configuration information also by X2 interface be transmitted to collaborative work other adjacent areas or Adjacent transmission point；If interference will not be generated to adjacent area, the distribution and configuration of the measurement pilot tone of the user can be remained unchanged.

Specifically, the method for discrimination for whether generating interference to adjacent area can have following several method：(1) network planning side Method：The FD-MIMO types that each cell is installed can be combined according to the geographical geometry site of the neighbouring cell to cooperate in advance Etc. information simply differentiated；(2) method of the network planning/optimization：It is established in conjunction with historical data and network optimization etc. geographical Database, the metrical information reported by UE terminals (may also include location information), the downlink fed back now in conjunction with user Broadband main beam direction information, identifies whether this cell transmission signal generates sufficiently strong interference to adjacent area；(3) R12 is introduced It is reported based on CSI-RS RRM measurements：This cell UE can be configured to configure with a series of relevant CSI-RS of adjacent cell, and by This cell requires to report the RRM metrical informations such as RSRP carried out on CSI-RS.Equally, adjacent area UE can be configured this cell to CSI-RS that new UE above-mentioned is configured etc. configures parameter, and reports the RRM metrical informations done in these CSI-RS resource. So the DRS Signaling infrastructures that R12 is introduced can be used for emitting different downlink wave beams to this cell and/or adjacent area from the sides UE feedback The power information of lower reception, these information are enough to differentiate that this cell is used for emitting UE using the channel state information of new UE feedbacks Whether downlink signal generates sufficiently strong interference to adjacent area UE；(4) method for the transmission/adjacent area feedback that cooperates in advance：This method needs Adjacent area is wanted first to provide the relevant measurement pilot configuration informations of adjacent area UE, then, this cell is believed using the broadband main beam of UE feedbacks Breath measures the pre- transmitting signal of pilot tone moment transmission in adjacent area UE, then by adjacent area feedback UE before and after this cell sends transmitting signal in advance CQI report, or UE downlink signals are directly fed back by adjacent area and cause CQI to decline by this area interference.

Further, in an embodiment of the present invention, pilot resources are measured from preset cooperation described in above-mentioned steps S3 Selection specific cooperation measurement pilot resources in pond measure pilot tone to the UE and reconfigure, and specifically include：

Network side measures the specific cooperation measurement pilot resources of pilot resources pond selection from preset cooperation and redistributes institute UE is stated for CSI and interference measurement, pilot configuration information will be measured and notified to the UE by downlink high level configuration information, and will The configuration information that pilot tone is measured to the down collaboration of user's distribution is transferred to by X2 interface other adjacent areas or the phase of collaborative work Adjacent launch point.

Wherein, the measurement pilot configuration information includes：CSI-RS defined parameters information and Gray's type mixing basic sequence are fixed The relevant information of justice；The relevant information includes that cell or launch point number, each transmitting of cooperation are participated in the measurement pilot tone Cell or the cooperation set numbers etc. of launch point where the radix and the UE of point；The radix of each launch point represents the survey Measure pilot tone uplink and downlink emission type.Such as radix=2, it represents the measurement pilot tone CSI-RS and is fed back as ZP CSI-RS or with UE Broadband main-lobe shaping NZP CSI-RS；For another example radix=3 can represent the measurement pilot tone CSI-RS to gather { ZP CSI-RS, with the NZP CSI-RS of 1 figuration of wave beam, with the NZP CSI-RS of 2 figuration of wave beam } in a kind of CSI-RS, wave beam 1 here Or wave beam 2 can be that the broadband main beam fed back by UE and the UE of adjacent beams or 2 different capacity tier definitions are fed back Broadband main beam etc., the specific pilot set that measures can be defined by network according to the specific channel circumstances of UE.

Then for the figuration scene that cooperates, similarly cooperate pilot resources for multiple user configurations of cooperation cell, this Resource can be 1 CSI-RS process, this process can configure same set CSI-RS running time-frequency resources, when using first frequency division again The configuration strategy divided can send NZP of the single port based on the specific two-dimentional figurations of UE in each positions RE at some subframe moment Or ZP CSI-RS symbols, the figuration factor and power level of the symbol be all by above-mentioned Gray's type mixing basic sequence it is unified into Row definition.

Further, network measures pilot tone according to above-mentioned cooperation and is configured to UE, while according to different scenes (if not With movement speed or business characteristic) to user configuration difference measurement pattern, and issue CSI- according to measuring configuration and measurement pattern RS measuring signals, UE can know the exclusive cells of arbitrary time-frequency location UE or launch point institute according to Gray's type mixed base sequence definition CSI-RS pilot signals are sent, if it is ZP CSI-RS signal, then, UE can carry out the survey of the interference in minizone and cell Amount；If it is NZP CSI-RS signal and long period measurement pattern, UE can be in conjunction with interference measurement information under the same scene of adjacent area It calculates this cell and sends CQI information under particular beam signal, and with throughput maximum principle in the period as defined in measuring configuration Feed back the CQI information under limited more (such as most 3 kinds) cooperation scene；If it is NZP CSI-RS signal and short cycle measurement mould Formula 1, UE needs measure the down channel of this cell and cooperation cell to the sides UE, and it is strongest limited multigroup to receive signal Down channel measurement feeds back to network, and network can be calculated most using cooperation forming algorithm according to certain criterion according to measurement result The coded/modulated mode of good figuration vector and determining data transmission, is used for the transmission of configurating downlink data；In addition, UE's Under short measurement pattern 2, network can also configure aperiodic cooperation to UE and measure pilot tone in control resource affluence, and Figuration is carried out to measuring pilot tone using the downlink forming vector calculated, while triggering the aperiodic CQI of UE progress and reporting.This Sample, network can carry out rationally accurate cooperation according to the CQI information of the UE of all cooperation cells feedbacks and adjust under different scenes Degree.

In order to illustrate more clearly of technical scheme of the present invention, FD-MIMO is illustrated below by a specific embodiment Measurement pilot frequency collocation method in system for the figuration that cooperates：

Typical indoor scene as shown in FIG. 6：Megastore, quadrangle are respectively arranged 4 3.5G frequency range FD-MIMO antennas (antenna type：The 64 port dual polarized antennas of 8*4*2, polarization mode (+45, -45)), adhere to 4 LTE-A cells separately, it is this 4 small Area belongs to Hot Spot, considers that typical scene is the figuration that cooperates under high load application scenarios.The newly access activation user of cell 1 UE1 feeds back its CSI information by existing measuring configuration mode to 4 cell cooperative network centers, at 4 cell cooperative networks Reason reconfigures cooperation with the activation UE (UE2 of cell 2, the UE4 of the UE3 and cell 4 of cell 3) of other cells and measures pilot tone Resource.These UE are carrying out large-data operation download.This cooperation measures pilot resources configuration：Frequency domain position is every 4 symbols (4,5,10,11) of radio frames subframe (4,9) are in last 1 RE of every RB, 5 milliseconds of time domain interval.Gray's type mixed base Sequence definition is 4 element base, 4 combined sequence A=[a0, a1, a2..a255], and it is fixed usually to mix basic sequence arbitrary element x mathematics Justice：

Here base vector M=[m0, m1, m2, m3], herein, m0=4, m1=4, m2=4, m3=4.That is, every The radix of measurement pilot set of the cell per UE is all 4, and element set is assigned by 1 ZP CSI-RS and 3 particular beams The NZP CSI-RS compositions of shape.So it is 1280 milliseconds to measure pilot period.

The measurement pilot set of 4 UE of this 4 cells assume that be defined respectively by the following table 1：

The measurement pilot set of 1 cell of table and UE

It needs exist for illustrating that the NZP of table measures pilot tone using (power, the figuration factor) to characterize.Here 3 are defined Power grade [P0, P1, P2], there is following relationship respectively：P1=P0-3dB, P2=P0-6dB.

Here, suppose that cell 1UE1 and cell 3UE3 are very typical RANK-1 channels, moreover, primary and secondary significant channel Power ratio is very big, and the RANK-1 wave beams of main significant channel vector quantization are relatively narrow, so, their 3 NZP measure pilot tone The figuration factor is with the beam vectors of main significant channel vector quantization, and power level is 3 grades.Although cell 2UE2 can be approximate Regard RANK-1 channels as, still, the power of primary and secondary significant channel is smaller, and the wave beam of main significant channel vector quantization is wider, institute The power level that pilot tone is measured with its 3 NZP is consistent, and the figuration factor is with the wave beam of main significant channel vector quantization and level side Adjacent to the left and right totally 3 wave beams define.The channel of cell 4UE4 is RANK-2 channels, it is contemplated that cooperate figuration technology here It applies under high load application scenarios, so its 3 NZP are measured pilot tone and cell 2UE2 definition, 3 NZP measurements are led The power level of frequency is consistent, and the figuration factor is with adjacent totally 3 of the wave beam of main significant channel vector quantization and horizontal direction or so Wave beam defines.

As described above, Gray's type mixed base sequence definition can be with the following table 2 as reference：

2 Gray's type mixed base sequence definition of table

The present embodiment propose it is a kind of application FD-MIMO systems and cooperate figuration technology scene under, to it is multiple cooperation it is small A kind of method that what the UE of area or launch point was unified applied with cooperation mode CSI-RS configurations and is used.In the present embodiment The cooperative groups of 4 cells/UE compositions use long period measurement method, 4 UE to measure pilot resources to each cell base using first 5 Stand/launch point to UE downlinks carries out channel measurement and carried out to the interference that other non-cells generate other than 4 cooperation cells It measures.Channel measurement is fed back to network by UE, and then network determines candidate as defined in table 1 according to channel measurement Figuration vector carries out figuration, configuration mode limited according to measurement to these figuration vectors UE to the measurement pilot tone emitted thereafter CQI measurements are carried out, and wherein preferable 4 CQI measurements are reported to network, in this way, what network was just reported according to all UE CQI measurement determines that follow-up downlink data transmission needs figuration vector sum coded/modulated mode to be used.

Fig. 7 is the structural representation of the measurement pilot frequency configuration device in a kind of FD-MIMO systems in one embodiment of the invention Figure, as shown in fig. 7, described device includes：Dispensing unit 701, cooperation judging unit 702 and reconfigure unit 703.Wherein：

Dispensing unit 701 is used for after user equipment (UE) enters network, and measuring pilot resources pond from preset non-cooperating selects It selects measurement pilot resources and pilot frequency configuration is measured to the UE, for the UE reporting channel informations；Cooperate judging unit 702 Channel information and network geographical topology information, UE motion states, business feature for being reported according to the UE and ability information Determine whether the UE needs to participate in minizone cooperation figuration；If reconfiguring unit 703 to need to participate in minizone for the UE Cooperate figuration, and the measurement pilot resources for having distributed to the UE, which are recycled to the non-cooperating, measures pilot resources pond, from default Cooperation measure the specific cooperation of pilot resources ponds selection and measure pilot resources pilot tone is measured to the UE and reconfigure, simultaneously Short cycle or macrocyclic measurement pattern are configured using UE described in Gray's type mixed base sequence pair, and according to measuring configuration and measurement Pattern issues CSI-RS measuring signals.

The present embodiment is by maintaining the measurement pilot frequency configuration resource of 3 cell CoMP can be supported to open as defined in existing protocol The use to be cooperated using cooperation figuration on the basis of pin to the multiple downlink cells (or launch point) more than 3 to cooperate in advance The same one or more groups of running time-frequency resources of the unified configuration in family, it is same using cooperation mode by multiple downlink cells or downlink point When emit precoding measurement pilot tone, in a time division manner and single subframe measurements limitation arrangement terminal complete CSI information and interference survey The task of amount.Precoding due to defining cooperation transmitting cell using Gray's type mixed base composite sequence mode measures the pre- of pilot tone Encoding scheme can efficiently solve CSI-RS and CSI-IM resource distributions and planning problem.

Specifically, the cooperation judging unit 702, is specifically used for：

Specifically, described to reconfigure unit 703, it is specifically used for：

Further, described device further includes：Long period measuring unit, is used for：

Specifically, the network side is according to current network load situation, from preset short cycle measurement pattern cooperation resource Select resource allocation to the UE in pond, including：

Further, described device further includes：First short cycle measuring unit, is used for：

Further, described device further includes：Second short cycle measuring unit, is used for：

For device embodiments, since it is basically similar to the method embodiment, so fairly simple, the correlation of description Place illustrates referring to the part of embodiment of the method.

Fig. 8 is the structure diagram of a kind of electronic equipment in one embodiment of the invention.

Reference Fig. 8, the electronic equipment, including：Processor (processor) 801, memory (memory) 802, communication Interface (Communications Interface) 803 and bus 804；Wherein,

The processor 801, memory 802, communication interface 803 complete mutual communication by the bus 804；

The communication interface 803 is for the information transmission between the electronic equipment and user equipment；

The processor 801 is used to call the program instruction in the memory 802, to execute above-mentioned each method embodiment The method provided, such as including：After user equipment (UE) enters network, measures the selection of pilot resources pond from preset non-cooperating and survey Amount pilot resources measure pilot frequency configuration to the UE, for the UE reporting channel informations；The letter reported according to the UE Road information and network geographical topology information, UE motion states, business feature and ability information determine whether the UE needs to participate in Minizone cooperation figuration；If the UE needs to participate in minizone cooperation figuration, the measurement pilot resources of the UE will have been distributed to It is recycled to the non-cooperating and measures pilot resources pond, measuring pilot resources pond from preset cooperation selects specifically to cooperate with measuring to lead Frequency resource measures pilot tone to the UE and reconfigures, at the same using UE configuration short cycles described in Gray's type mixed base sequence pair or Macrocyclic measurement pattern, and issue CSI-RS measuring signals according to measuring configuration and measurement pattern；Wherein, the non-cooperating is surveyed Amount pilot resources pond is to participate in the new user of cooperation figuration or the confirmed use for being not involved in cooperation figuration to possibility to be determined The running time-frequency resource of family configuration；It is to participate in cooperation to the multiple UE of multiple cells by confirming are quasi- that the cooperation, which measures pilot resources pond, The user configuration of figuration carries out the channel state information CSI measurement pilot tones of figuration for the collaboration of multiple adjacent areas and CSI-IM interference is surveyed Measure the resource pool of pilot tone.

One embodiment of the invention discloses a kind of computer program product, and the computer program product is non-temporary including being stored in Computer program on state computer readable storage medium, the computer program include program instruction, when described program instructs When being computer-executed, computer is able to carry out the method that above-mentioned each method embodiment is provided, such as including：User equipment (UE) Into after network, pilot tone is measured to the UE from preset non-cooperating measurement pilot resources pond selection measurement pilot resources and is matched It sets, for the UE reporting channel informations；Shape is moved according to the UE channel informations reported and network geographical topology information, UE State, business feature and ability information determine whether the UE needs to participate in minizone cooperation figuration；If the UE needs to participate in small The measurement pilot resources for having distributed to the UE are recycled to the non-cooperating and measure pilot resources pond by section cooperation figuration, from The specific cooperation measurement pilot resources of preset cooperation measurement pilot resources pond selection measure pilot tone to the UE and reconfigure, Simultaneously using UE configuration short cycles or macrocyclic measurement pattern described in Gray's type mixed base sequence pair, and according to measuring configuration and Measurement pattern issues CSI-RS measuring signals；Wherein, the non-cooperating, which measures pilot resources pond, is participated in possibility to be determined Cooperate the new user of figuration or the running time-frequency resource of the confirmed user configuration for being not involved in cooperation figuration；The cooperation measures pilot tone Resource pool be to the quasi- user configurations for participating in cooperation figuration of the multiple UE of multiple cells by confirming for multiple adjacent areas cooperate with into The channel state information CSI of row figuration measures the resource pool of pilot tone and CSI-IM interference measurement pilot tones.

One embodiment of the invention discloses a kind of non-transient computer readable storage medium, and the non-transient computer is readable to deposit Storage media stores computer instruction, and the computer instruction makes the computer execute the side that above-mentioned each method embodiment is provided Method, such as including：After user equipment (UE) enters network, measures the selection of pilot resources pond from preset non-cooperating and measure pilot resources Pilot frequency configuration is measured to the UE, for the UE reporting channel informations；According to the UE channel informations reported and net Network geographical topology information, UE motion states, business feature and ability information determine whether the UE needs to participate in minizone cooperation Figuration；If the UE needs to participate in minizone cooperation figuration, the measurement pilot resources for having distributed to the UE are recycled to described Non-cooperating measures pilot resources pond, and measuring the specific cooperation of pilot resources pond selection from preset cooperation measures pilot resources to institute It states UE and measures pilot tone and reconfigure, while using UE configuration short cycles or macrocyclic survey described in Gray's type mixed base sequence pair Amount pattern, and issue CSI-RS measuring signals according to measuring configuration and measurement pattern；Wherein, the non-cooperating measures pilot resources Pond be to possibility to be determined participate in cooperation figuration new user or the confirmed user configuration for being not involved in cooperation figuration when Frequency resource；It is to the quasi- users for participating in cooperation figuration of the multiple UE of multiple cells by confirming that the cooperation, which measures pilot resources pond, It is configured to the money that the channel state information CSI that multiple adjacent area collaborations carry out figuration measures pilot tone and CSI-IM interference measurement pilot tones Source pond.

One of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can pass through The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer read/write memory medium, the program When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or light The various media that can store program code such as disk.

The embodiments such as the test equipment of display device described above are only schematical, wherein described as separation The unit of part description may or may not be physically separated, the component shown as unit can be or It can not be physical unit, you can be located at a place, or may be distributed over multiple network units.It can be according to reality Border needs to select some or all of module therein to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art In the case where not paying performing creative labour, you can to understand and implement.

Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can It is realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on Stating technical solution, substantially the part that contributes to existing technology can be expressed in the form of software products in other words, should Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including several fingers It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation Method described in certain parts of example or embodiment.

It should also be noted that, herein, relational terms such as first and second and the like are used merely to one Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments Invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.

Claims

1. the measurement pilot frequency collocation method in a kind of FD-MIMO systems, which is characterized in that the method includes：

After user equipment (UE) enters network, network side measures the selection of pilot resources pond from preset non-cooperating and measures pilot resources pair The UE measures pilot frequency configuration, for the UE reporting channel informations；

Network side is according to the UE channel informations reported and network geographical topology information, UE motion states, business feature and energy Force information determines whether the UE needs to participate in minizone cooperation figuration；

If the UE needs to participate in minizone cooperation figuration, the measurement pilot resources for having distributed to the UE are recycled to by network side The non-cooperating measures pilot resources pond, and measuring the specific cooperation of pilot resources pond selection from preset cooperation measures pilot resources Pilot tone is measured to the UE to reconfigure, while using UE configuration short cycles or long period described in Gray's type mixed base sequence pair Measurement pattern, and issue CSI-RS measuring signals according to measuring configuration and measurement pattern；

Wherein, it is to the new user of possibility participation cooperation figuration to be determined or through true that the non-cooperating, which measures pilot resources pond, Recognize the running time-frequency resource for the user configuration for being not involved in cooperation figuration；It is to multiple by what is confirmed that the cooperation, which measures pilot resources pond, The channel state information CSI that the quasi- user configurations for participating in cooperation figuration of the multiple UE of cell carry out figuration for the collaboration of multiple adjacent areas is surveyed Measure the resource pool of pilot tone and CSI-IM interference measurement pilot tones.

2. according to the method described in claim 1, it is characterized in that, the network side according to the UE channel informations reported and Network geographical topology information, UE motion states, business feature and ability information determine whether the UE needs to participate in minizone association Make figuration, including：

The downstream broadband main beam direction information that network side is fed back according to the UE determines It is no to judge that the UE needs to participate in minizone cooperation figuration if it can generate interference to adjacent area to adjacent area generation interference.

3. according to the method described in claim 1, it is characterized in that, described measure pilot resources pond selection spy from preset cooperation Fixed cooperation measurement pilot resources measure pilot tone to the UE and reconfigure, including：

Network side measures the specific cooperation measurement pilot resources of pilot resources pond selection from preset cooperation and redistributes the UE For CSI and interference measurement, pilot configuration information will be measured and notified to the UE by downlink high level configuration information, and will give and use The configuration information that the down collaboration of family distribution measures pilot tone is transferred to other adjacent areas of collaborative work or adjacent hair by X2 interface Exit point；

Wherein, the measurement pilot configuration information includes：CSI-RS defined parameters information and Gray's type mixed base sequence definition Relevant information；The relevant information includes that the cell or launch point number, each launch point of cooperation are participated in the measurement pilot tone The cooperation set numbers of radix and UE place cells or launch point；The radix of each launch point represents the measurement pilot tone Uplink and downlink emission type.

4. method described in any one of claim 1 to 3, which is characterized in that described to measure pilot tone from preset cooperation The specific cooperation measurement pilot resources of resource pool selection measure pilot tone to the UE and reconfigure, while being mixed using Gray's type Basic sequence configures short cycle or macrocyclic measurement pattern to the UE, including：

If the UE needs to participate in minizone cooperation figuration, judge whether the UE is that low speed user or big data quantity are downloaded User；

If the UE, which is low speed user or big data quantity, downloads user, channel information and the net of the network side according to the UE Network geographical topology information selects resource allocation to the UE in cooperating resource pool from preset long period measurement pattern；

User is downloaded if the UE is not low speed user or big data quantity, and network side is according to current network load situation, from pre- If short cycle measurement pattern cooperation resource pool in selection resource allocation give the UE；

Wherein, it includes the long period measurement pattern cooperation resource pool and described short that the preset cooperation, which measures pilot resources pond, Periodic measurement mode cooperation resource pool.

5. according to the method described in claim 4, it is characterized in that, the network side is according to the channel information of the UE and described Network geographical topology information selects the step of resource allocation is to the UE in cooperating resource pool from preset long period measurement pattern Later, the method further includes：

It is more than 1 if distributing to and participating in whole number of cells of minizone cooperation in the resource of the UE, network cell or launch point Between exchange cooperative information, and resource is carried out to new user and measures reporting schemes configuration, resource and measurement are carried out to existing subscriber Reporting schemes reconfigure；

Network side measures pilot tone in the measurement pilot resources transmitting zero energy ZP configured, for the UE to collaboration set outside it is small The interference of area or launch point measures；

Network side emits corresponding different cooperation cells or launch point in a time multiplexed way in the measurement pilot resources configured Class A NZP measure pilot tone, so that the UE measures the measurement pilot tone of its corresponding cooperation cell or launch point, and Periodic feedback RI+ broadband i₁；

The channel information that network side is reported according to all UE determines the candidate cooperation figuration factor, is led in the measurement of the configuration Frequency resource measures pilot tone according to K=1Class B NZP, and emitting the cooperation measurements of different cooperation scenes to measure limited manner leads Frequently, so that UE is measured；

After UE, which completes all Class B NZP, measures pilot measurement, J channel quality indicator (CQI) value of maximum is selected And corresponding subscript feeds back to network side, network side selects the figuration factor and volume of cooperation figuration according to the CQI that all UE are reported Code modulation system, for follow-up coordination downlink data transmission, and repeats above-mentioned measurement process.

6. according to the method described in claim 4, it is characterized in that, the network side according to current network load situation, from pre- If short cycle measurement pattern cooperation resource pool in selection resource allocation give the UE, including：

If current network load is high load condition, network side is cooperated from preset first short cycle measurement pattern in resource pool Select resource allocation to the UE；

If current network load be high load condition, network side from preset second short cycle measurement pattern cooperate resource pool Middle selection resource allocation gives the UE.

7. according to the method described in claim 6, it is characterized in that, the network side then measures mould from preset first short cycle After the step of selection resource allocation gives the UE in formula cooperation resource pool, the method further includes：

It is more than 1 if distributing to and participating in whole number of cells N of minizone cooperation in the resource of the UE, network cell or launch point Between exchange cooperative information, and resource is carried out to new user and measures reporting schemes configuration, resource and measurement are carried out to existing subscriber Reporting schemes reconfigure；

Network side configured measurement pilot resources transmitting ZP measure pilot tone, for the UE to collaboration set outside cell or hair The interference of exit point measures；

Network side emits corresponding different cooperation cells or launch point in a time multiplexed way in the measurement pilot resources configured Class A NZP measure pilot tone, so that the UE is to measure measurement pilot tone of the limited manner to all cooperation cells or launch point It measures, and receives the corresponding broadbands the RI+ i of prominent M cell in periodic feedback N₁, while showing feedback interference Measured value；

Network side uses the figuration factor and volume of forming algorithm determination cooperation figuration according to the feedback result of all UE received Code modulation system, for follow-up coordination downlink data transmission, and repeats above-mentioned measurement process.

8. according to the method described in claim 6, it is characterized in that, the network side then measures mould from preset second short cycle After the step of selection resource allocation gives the UE in formula cooperation resource pool, the method further includes：

Network side configured measurement pilot resources transmitting ZP measure resource, for the UE to collaboration set outside cell or hair The interference of exit point measures；

Network side emits corresponding different cooperation cells or launch point in a time multiplexed way in the measurement pilot resources of the configuration Class A NZP measure pilot tone, so that the UE leads the measurement of all cooperation cells or launch point with measuring limited manner Frequency measures, and the corresponding broadbands the RI+ i of prominent M cell is received in periodic feedback N₁, while showing that feedback is dry Disturb measured value；

Network side determines the figuration factor of cooperation figuration according to the feedback result of all UE received using forming algorithm, and with The figuration factor sends K=1Class B using cooperation mode and measures pilot tone, and utilizes Downlink Control Information DCI command triggers To this, the allocycly measures pilot tone progress allocycly measurement to UE and CQI is reported；

Network side determines the code modulation mode of cooperation figuration according to the reported result that UE is fed back, for follow-up coordination downlink data Transmission, and repeat above-mentioned measurement process.

9. the measurement pilot frequency configuration device in a kind of FD-MIMO systems, which is characterized in that described device includes：

Dispensing unit, for after user equipment (UE) enters network, measuring the selection of pilot resources pond from preset non-cooperating and measuring Pilot resources measure pilot frequency configuration to the UE, for the UE reporting channel informations；

Cooperate judging unit, channel information and network geographical topology information for being reported according to the UE, UE motion states, industry Business characteristic and ability information determine whether the UE needs to participate in minizone cooperation figuration；

Unit is reconfigured, if needing to participate in minizone cooperation figuration for the UE, the measurement pilot tone of the UE will have been distributed to Resource reclaim to the non-cooperating measures pilot resources pond, and measuring the specific cooperation of pilot resources pond selection from preset cooperation surveys Amount pilot resources measure pilot tone to the UE and reconfigure, while configuring short week using UE described in Gray's type mixed base sequence pair Phase or macrocyclic measurement pattern, and issue CSI-RS measuring signals according to measuring configuration and measurement pattern；

10. device according to claim 9, which is characterized in that the cooperation judging unit is specifically used for：

Whether can be right to the downlink information of the UE according to the downstream broadband main beam direction information determination of UE feedbacks Adjacent area generation interference judges that the UE needs to participate in minizone cooperation figuration if it can generate interference to adjacent area.