CN109391391A

CN109391391A - A kind of method and device being used for transmission reference signal

Info

Publication number: CN109391391A
Application number: CN201710672897.6A
Authority: CN
Inventors: 孙鹏; 郤伟
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2017-08-08
Filing date: 2017-08-08
Publication date: 2019-02-26
Anticipated expiration: 2037-08-08
Also published as: CN109391391B; WO2019029426A1

Abstract

This application discloses a kind of method and devices for being used for transmission reference signal, are related to field of communication technology, the excessive, the pilot pollution problem to signaling overheads caused by solving during the tracking of existing time-frequency.This method comprises: determining the first instruction information, which is used to indicate that the running time-frequency resource of at least two channel state information reference signals CSI-RS, at least two CSI-RS are tracked for time-frequency to first terminal；The first instruction information is sent to first terminal.The application is tracked applied to time-frequency.

Description

A kind of method and device being used for transmission reference signal

Technical field

This application involves wireless communication technology field, in particular to a kind of method and device for being used for transmission reference signal.

Background technique

The problems such as Doppler effect, carrier deviation, phase noise, can cause the data-signal transmitted in communication system Generate biggish frequency deviation and when it is inclined, to bring larger interference, and then cause the performance of communication system to decline, or even can not work Make.In order to solve this problem, the main primary synchronization signal by being sent in user equipment according to base station of the prior art (Primary Synchronization Signal, PSS) and secondary synchronization signal (Secondary Synchronization Signal, SSS) reach and synchronize after, the track reference signal that is sent based on base station (Tracking Reference Signal, TRS time-frequency tracking) is carried out to the data-signal that base station is sent, come to the signal progress frequency and time transmitted in communication system It compensates, there are time domain offset and frequency offsets in decrease communication system.

But since in existing LTE system, terminal is the cell specific reference signal (Cell- sent according to base station Specific Reference Signal, CRS) come the data progress time-frequency tracking to the base station transmission received, i.e. LTE TRS in system is CRS, and base station can continue to send always, so as to cause entire communication system when sending CRS to terminal In there are a large amount of signaling overheads and pilot pollutions.

Apply for content

The embodiment of the present application provides a kind of method and device for being used for transmission reference signal, to solve existing time-frequency tracking Generated signaling overheads is excessive in the process, the pilot pollution problem.

In order to achieve the above objectives, the embodiment of the present application adopts the following technical scheme that

In a first aspect, the application provides a kind of method for being used for transmission reference signal, comprising: determine the first instruction information, The first instruction information is used to indicate at least two channel state informations (Channel State to first terminal Information, CSI) reference signal (CSIR eference Signal, CSI-RS) running time-frequency resource, at least two CSI- RS is tracked for time-frequency；The first instruction information is sent to first terminal.

Correspondingly, the application provides a kind of device for being used for transmission reference signal, which may be implemented first aspect The method for being used for transmission reference signal, for example, the device can be the network equipment, in a kind of possible design, the device packet Include determination unit and transmission unit, in which: determination unit, for determining the first instruction information, the first instruction information is for referring to Show the video resource of at least two CSI-RS, which tracks for time-frequency；Transmission unit, for whole to first End sends the first instruction information.

The network equipment in this way in the application is by sending the first instruction information to first terminal, after informing first terminal The CSI-RS for time-frequency tracking is contained in the CSI-RS that supervention is sent, so that first terminal refers to according to first received The CSI-RS tracked for time-frequency can be obtained after showing information, to carry out time-frequency tracking.In this way by being believed using existing pilot tone Number, then it can be signaled according to existing, thus reduce corresponding pilot-frequency expense, meanwhile, then it can will act as other use The pilot signal on way is tracked as time-frequency, reduces corresponding pilot-frequency expense.

Optionally, first aspect provide technical solution a kind of possible design in, first instruction information be used for First terminal indicates the running time-frequency resource of at least two CSI-RS in the first CSI-RS resource set；Alternatively, the first instruction information For indicating the running time-frequency resource of the CSI-RS of at least one CSI-RS group in the second CSI-RS resource set to first terminal；Its In, each CSI-RS group is tracked for time-frequency, and each CSI-RS group includes at least two CSI-RS.Wherein, above-mentioned first CSI-RS resource set includes but is not limited to: the set of the resource allocation information of CSI-RS；The second above-mentioned CSI-RS resource collection Include but is not limited in conjunction: the resource allocation information of the CSI-RS of CSI-RS group.Illustratively, the first above-mentioned CSI-RS resource Set and the second CSI-RS resource set can be network side and terminal side by way of making an appointment (e.g., existing protocol) The CSI-RS resource set appointed in advance, or the network equipment is terminal configuration for obtaining channel status letter in advance The CSI-RS resource set of the CSI-RS of breath.

Further alternative, the first above-mentioned instruction information is used to indicate in the first CSI-RS resource set to first terminal At least two CSI-RS mark, the mark of CSI-RS is used to indicate the running time-frequency resource of CSI-RS；Alternatively, the first instruction information For indicating the group number of at least one CSI-RS group in the second CSI-RS resource set, the group number of CSI-RS group to first terminal It is used to indicate the running time-frequency resource of the CSI-RS of CSI-RS group.

Exemplary, the resource allocation information of above-mentioned CSI-RS includes at least one of following information: the period of CSI-RS, The sub-frame offset value of CSI-RS, the position of the resource block (Resource Block, RB) of the occupancy of CSI-RS, CSI-RS in RB The number of the resource unit RE of middle occupancy, the antenna port number of CSI-RS, the sequence initialization parameter of CSI-RS, CSI-RS are accounted for The drawing information of RE is to carry the carrier type of the CSI-SR.

Optionally, the first instruction letter in any possible design of first aspect or first aspect, in the application Breath includes: the drawing information of shared (the Resource Element, RE) of at least two CSI-RS.

Optionally, in any possible design of first aspect or first aspect, the technical side of first aspect offer Case further include: directly send an instruction information to first terminal, to indicate preconfigured at least two CSI-RS, and indicate It is used for time-frequency tracking.Illustratively, the first instruction information in the technical solution includes: at least two CSI-RS corresponding The resource allocation information of CSI-RS, the resource allocation information of the CSI-RS are used to indicate at least two CSI-RS of pre-configuration, and Indicate that it is used for time-frequency tracking.

Optionally, in any possible design of first aspect or first aspect, the technical side of first aspect offer Case further include: the network equipment is before determining the first instruction information, it is also an option that at least two CSI-RS, to reduce notice The expense of signaling.Correspondingly, the device further includes selecting unit in a kind of possible design.Wherein: the selecting unit is used for Select at least two CSI-RS.Illustratively, the network equipment can select at least two CSI-RS according to pre-defined rule, wherein The pre-defined rule can satisfy at least one of following conditions: frequency domain density is more than or equal to X (X >=1), network equipment antenna Port number is less than or equal to Y (Y≤4), and time-domain symbolic number is less than or equal to Z (Z≤2).

Optionally, in any possible design of first aspect or above-mentioned first aspect, the skill of first aspect offer Art scheme further include: the CSI-RS for being used for time-frequency tracking is used as other purposes, to reduce corresponding pilot-frequency expense.Specifically, The technical solution further includes at least one of following scheme: option A: sending second indication information to second terminal；Option b: to Third terminal sends third and indicates information；Scheme C: the 4th instruction information is sent to the 4th terminal.Correspondingly, a kind of possible In design, which is also used to realize at least one of following step: step A: sending second indication information to terminal； Step B: third is sent to terminal and indicates information；Step C: the 4th instruction information is sent to terminal.Wherein, the second above-mentioned instruction Information is used to indicate second terminal and carries out rate-matched according at least two CSI-RS；Above-mentioned third instruction information is used to indicate Third terminal carries out wave beam management according to any CSI-RS at least two CSI-RS；The 4th above-mentioned instruction information is for referring to Show that the 4th terminal obtains channel state information according to any CSI-RS at least two CSI-RS.

Second aspect, this application provides a kind of methods for being used for transmission reference signal, comprising: receives the first instruction letter Breath, the first instruction information are used to indicate the running time-frequency resource of at least two CSI-RS, at least two CSI-RS to first terminal It is tracked for time-frequency；At least two CSI-RS are determined according to the first instruction information.Correspondingly, the application one kind is used for transmission reference The method for being used for transmission reference signal of second aspect may be implemented in the device of signal, the device, for example, the device can be for eventually End, in a kind of possible design, which includes receiving unit and determination unit, in which: receiving unit, for receiving first Indicate information, which is used to indicate the running time-frequency resource of at least two CSI-RS to first terminal；Determination unit is used According to first instruction information determine at least two CSI-RS.

Optionally, in a kind of possible design for the technical solution that second aspect provides, the technology of second aspect offer Scheme further include: determine the first CSI-RS resource set, wherein above-mentioned first instruction information is used for first terminal instruction the The running time-frequency resource of at least two CSI-RS in one CSI-RS resource set；Alternatively, determine the second CSI-RS resource set, In, the first above-mentioned instruction information is used to indicate at least one CSI-RS group in the second CSI-RS resource set to first terminal CSI-RS running time-frequency resource；Wherein, each CSI-RS group is tracked for time-frequency, which includes at least two CSI-RS.Correspondingly, in a kind of possible design, which is also used to determine the first CSI-RS resource set or the Two CSI-RS resource set.Illustratively, the first above-mentioned CSI-RS resource set and the second CSI-RS resource collection are combined into net Network side and the terminal side CSI-RS that (e.g., existing protocol) is appointed in advance by way of making an appointment gather, or net Network equipment is the CSI-RS resource set of the CSI-RS for obtaining channel state information of terminal configuration in advance.

Optionally, in any possible design of second aspect or second aspect, the technical side of second aspect offer Case further include: time-frequency tracking is carried out to the data that the network equipment received is sent according at least two CSI-RS.Correspondingly, In a kind of possible design, the device further include: time-frequency tracking cell, for according at least two CSI-RS to the net received The data that network equipment is sent carry out time-frequency tracking.

Optionally, in any possible design of second aspect or second aspect, the technical side of second aspect offer Case further include: the CSI-RS for being used for time-frequency tracking is used as other purposes, for example, rate-matched, is opened to reduce corresponding pilot tone Pin.Specifically, the technical solution further include: receive second indication information, which is used to indicate terminal according to extremely Few two CSI-RS carry out rate-matched, carry out rate-matched according to second indication information and at least two CSI-RS.Accordingly , in a kind of possible design, which is also used to receive second indication information, and the second indication information is for referring to Show that terminal carries out rate-matched according at least two CSI-RS；The terminal further include: de-rate matching unit, for referring to according to second Show that information and at least two CSI-RS carry out rate-matched.

Optionally, in any possible design of second aspect or second aspect, the technical side of second aspect offer Case further include: the CSI-RS for being used for time-frequency tracking is used as other purposes, for example, wave beam management, is opened to reduce corresponding pilot tone Pin.Specifically, the technical solution further include: receive third and indicate that information, third instruction information are used to indicate terminal according to institute Any CSI-RS stated at least two CSI-RS carries out wave beam management, indicates information and at least two CSI-RS according to third In any CSI-RS carry out wave beam management.Correspondingly, in a kind of possible design, which is also used to receive Three instruction information, third instruction information are used to indicate terminal and carry out wave beam according to any CSI-RS at least two CSI-RS Management；The device further include: wave beam administrative unit, for indicating any in information and at least two CSI-RS according to third CSI-RS carries out wave beam management.

Optionally, in any possible design of second aspect or second aspect, the technical side of second aspect offer Case further include: the CSI-RS for being used for time-frequency tracking is used as other purposes, for example, channel state information obtains, to reduce correspondence Pilot-frequency expense.The technical solution further include: receive the 4th instruction information, the 4th instruction information is used to indicate terminal according to extremely Any CSI-RS in few two CSI-RS obtains channel state information, according to the 4th instruction information and at least two CSI-RS In any CSI-RS obtain channel state information.Correspondingly, in a kind of possible design, which is also used to connect The 4th instruction information is received, the 4th instruction information is used to indicate terminal and obtains according to any CSI-RS at least two CSI-RS Channel state information；The device further include: channel detection unit, for according to the 4th instruction information and at least two CSI-RS In any CSI-RS obtain channel state information.

The third aspect provides a kind of method for being used for transmission reference signal, comprising: determines preconfigured 3rd CSI-RS The running time-frequency resource of at least two CSI-RS in resource collection, alternatively, determining in preconfigured 4th CSI-RS resource set At least one CSI-RS group in CSI-RS running time-frequency resource, wherein each CSI-RS group include at least two CSI-RS；It uses The running time-frequency resource of at least two CSI-RS sends CSI-RS to first terminal, wherein CSI-RS is tracked for time-frequency.Accordingly , the application provides a kind of device for being used for transmission reference signal, and what which may be implemented first aspect is used for transmission reference The method of signal, for example, the device can be the network equipment, in a kind of possible design, the device include determination unit and Transmission unit, in which: determination unit, for determining at least two CSI-RS in preconfigured third CSI-RS resource set Running time-frequency resource, alternatively, for determining at least one CSI-RS group in preconfigured 4th CSI-RS resource set The running time-frequency resource of CSI-RS；Wherein, each CSI-RS group includes at least two CSI-RS；Transmission unit, for using at least two The running time-frequency resource of a CSI-RS sends CSI-RS to first terminal；Wherein, which tracks for time-frequency.

Network side in this way in the application is determining at least two in preconfigured third CSI-RS resource set After the running time-frequency resource of CSI-RS, CSI-RS can be sent to first terminal based on the running time-frequency resource, since these CSI-RS are nets The CSI-RS that network side and terminal side are made an appointment, therefore, network side, which is not necessarily to send to terminal side, indicates that information is indicated.

Optionally, in a kind of possible design of the third aspect, the technical solution of third aspect offer further include: this is really The running time-frequency resource of at least two CSI-RS in fixed preconfigured third CSI-RS resource set, comprising: according to network parameter Information determines the running time-frequency resource of at least two CSI-RS in third CSI-RS resource set；Alternatively, the determination is preconfigured The running time-frequency resource of CSI-RS at least one CSI-RS group in 4th CSI-RS resource set, comprising: believed according to network parameter Breath, determines the running time-frequency resource of at least two CSI-RS in third CSI-RS resource set.Correspondingly, in a kind of possible design In, the determination unit is when determining the running time-frequency resource of at least two CSI-RS in preconfigured third CSI-RS resource set It is specifically used for: according to net-work parameter information, determines at least two CSI-RS in preconfigured third CSI-RS resource set Running time-frequency resource；Alternatively, determination unit is determining at least one CSI-RS in preconfigured 4th CSI-RS resource set It is specifically used for when the running time-frequency resource of CSI-RS in group: according to net mate information, determines preconfigured 4th CSI-RS resource The running time-frequency resource of CSI-RS at least one CSI-RS group in set.Wherein, above-mentioned net-work parameter information includes following letter At least one of breath: the mapping between the cell ID and cell of the cell of network device management and the running time-frequency resource of CSI-RS is closed It is the mapping between the region ID and region and the running time-frequency resource of CSI-RS in region locating for the cell of the cell of network device management Relationship, the configured CSI-RS of CSI-RS resource set gather interior CSI-RS resource quantity.

Optionally, in any possible design of the third aspect or the third aspect, the technical side of third aspect offer Case further include: the CSI-RS for being used for time-frequency tracking is used as other purposes, for example, rate-matched, wave beam management, channel status letter Breath obtains, to reduce corresponding pilot-frequency expense.Specific implementation can refer to the associated description of first aspect, and which is not described herein again.

Fourth aspect, this application provides a kind of methods for being used for transmission reference signal, comprising: determines preconfigured The running time-frequency resource of at least two CSI-RS in three CSI-RS resource set, alternatively, determining preconfigured 4th CSI-RS money The running time-frequency resource of CSI-RS at least one CSI-RS group in the set of source, wherein each CSI-RS group includes at least two CSI-RS；CSI-RS is received using the running time-frequency resource of at least two CSI-RS, wherein the CSI-RS is tracked for time-frequency.Phase It answers, the application provides a kind of device for being used for transmission reference signal, and what which may be implemented first aspect is used for transmission ginseng The method for examining signal, for example, the device can be terminal, in a kind of possible design, which includes determination unit and connects Receive unit, in which: determination unit is used for determination unit, for determining in preconfigured third CSI-RS resource set extremely The running time-frequency resource of few two CSI-RS, alternatively, determining at least one CSI- in preconfigured 4th CSI-RS resource set The running time-frequency resource of CSI-RS in RS group, wherein each CSI-RS group includes at least two CSI-RS；Receiving unit, for using The running time-frequency resource of at least two CSI-RS receives CSI-RS, wherein CSI-RS is tracked for time-frequency.

Optionally, in a kind of possible design of fourth aspect, the technical solution of fourth aspect offer further include: this is really The running time-frequency resource of at least two CSI-RS in fixed preconfigured third CSI-RS resource set, comprising: according to network parameter Information determines the running time-frequency resource of at least two CSI-RS in third CSI-RS resource set；The determination the preconfigured 4th The running time-frequency resource of CSI-RS at least one CSI-RS group in CSI-RS resource set, comprising: according to net-work parameter information, really Determine the running time-frequency resource of at least two CSI-RS in third CSI-RS resource set.Correspondingly, in a kind of possible design, it should Determination unit is specific when determining the running time-frequency resource of at least two CSI-RS in preconfigured third CSI-RS resource set For: according to net-work parameter information, determine the running time-frequency resource of at least two CSI-RS in third CSI-RS resource set；Or Person, determination unit CSI-RS in determining at least one CSI-RS group in preconfigured 4th CSI-RS resource set It is specifically used for when running time-frequency resource: according to net-work parameter information, determines at least two CSI-RS in third CSI-RS resource set Running time-frequency resource.Wherein, above-mentioned net-work parameter information includes at least one of following information: the serving cell of first terminal Mapping relations between ID and cell and the running time-frequency resource of CSI-RS, the region ID in region locating for the server cell of first terminal And the mapping relations between region and the running time-frequency resource of CSI-RS, the configured CSI-RS of CSI-RS resource set gather interior CSI-RS Resource quantity.

Optionally, in any possible design of fourth aspect or fourth aspect, the technical side of fourth aspect offer Case further include: time-frequency tracking is carried out to the data that the network equipment received is sent according at least two CSI-RS.Correspondingly, In a kind of possible design, the device further include: time-frequency tracking cell, for according at least two CSI-RS to the net received The data that network equipment is sent carry out time-frequency tracking.

Optionally, in a kind of possible design of fourth aspect, the technical solution of fourth aspect offer further include: will use It is used as other purposes in the CSI-RS of time-frequency tracking, for example, rate-matched, wave beam management, channel state information obtain, to reduce Corresponding pilot-frequency expense.Specific implementation can refer to the associated description of second aspect, and which is not described herein again.

It should be noted that the first terminal, second terminal, third terminal and the 4th terminal in the application can be same One terminal, or different terminals, the application do not limit this.

Any device that above-mentioned first aspect, second aspect, the third aspect and fourth aspect provide can by software, Hardware or the corresponding software realization above method is executed by hardware.The apparatus may include processors and memory.At this Reason device is configured as corresponding function in the method for supporting the device to execute above-mentioned corresponding aspects.Memory is used for and processor coupling It closes, saves the necessary program of the device and data.In addition the device can also include communication interface, for support the device with Communication between other network elements.The communication interface can be transceiver.

Present invention also provides a kind of computer storage mediums, store computer program thereon, when the program is calculating When being run on machine, so that computer executes method described in any of the above-described aspect.

Present invention also provides a kind of computer program products, when run on a computer, so that computer executes Method described in any of the above-described aspect.

Present invention also provides a kind of communication chips, wherein instruction is stored with, when it runs on the network equipment or terminal When, so that the network equipment or terminal execute method described in above-mentioned various aspects.

It is to be appreciated that any device or computer storage medium or computer program product of above-mentioned offer are used to Execute corresponding method presented above, therefore, attainable beneficial effect can refer to it is beneficial in corresponding method Effect, details are not described herein again.

Detailed description of the invention

A kind of communication system architecture figure that Fig. 1 is applicable in by technical solution provided by the embodiments of the present application；

Fig. 2 is a kind of flow diagram of the method for transmission of reference signals provided by the embodiments of the present application；

Fig. 3 is a kind of pilot patterns provided by the embodiments of the present application；

Fig. 4 is another pilot patterns provided by the embodiments of the present application；

Fig. 5 is the flow diagram of the method for another transmission of reference signals provided by the embodiments of the present application；

Fig. 6 is the flow diagram of the method for another transmission of reference signals provided by the embodiments of the present application；

Fig. 7 is the flow diagram of the method for another transmission of reference signals provided by the embodiments of the present application；

Fig. 8 is the flow diagram of the method for another transmission of reference signals provided by the embodiments of the present application

Fig. 9 is a kind of structural schematic diagram of the network equipment provided by the embodiments of the present application；

Figure 10 is a kind of structural schematic diagram of base station provided by the embodiments of the present application；

Figure 11 is a kind of structural schematic diagram of terminal provided by the embodiments of the present application；

Figure 12 is the structural schematic diagram of another terminal provided by the embodiments of the present application.

Specific embodiment

The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, herein Middle character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or"；In formula, character "/" indicates forward-backward correlation Object is the relationship of a kind of " being divided by ".If explanation is not added, " multiple " herein refer to two or more.

For the ease of clearly describing the technical solution of the embodiment of the present application, in embodiments herein, use " the One ", the printed words such as " second " distinguish function or the essentially identical identical entry of effect or similar item, and those skilled in the art can To understand that the printed words such as " first ", " second " are not defined quantity and execution order.

It should be noted that in the embodiment of the present application, " illustrative " or " such as " etc. words make example, example for indicating Card or explanation.Be described as in the embodiment of the present application " illustrative " or " such as " any embodiment or design scheme do not answer It is interpreted than other embodiments or design scheme more preferably or more advantage.Specifically, " illustrative " or " example are used Such as " word is intended to that related notion is presented in specific ways.

It should be noted that in the embodiment of the present application, unless otherwise indicated, the meaning of " plurality " is refer to two or two with On.

It should be noted that in the embodiment of the present application, " (English: of) ", " corresponding (English: corresponding, It relevant) " sometimes can be mixed with " corresponding (English: corresponding) ", it is noted that do not emphasizing it When difference, meaning to be expressed is consistent.

Technical solution provided by the present application can be applied to various communication systems, for example, 5G communication system, the following evolution system System or a variety of communication emerging systems etc..It may include plurality of application scenes, for example, Machine To Machine (machine to Machine, M2M), it is D2M, macro micro- communication, enhanced mobile Internet (enhance mobile broadband, eMBB), super High reliability communicates (ultra reliable&low latency communication, uRLLC) and sea with ultralow time delay Measure scenes such as Internet of Things Network Communication (massive machine type communication, mMTC).These scenes include but not It is limited to: communication between communication or the network equipment and the network equipment or the network equipment and terminal room between terminal and terminal In the scenes such as communication.The embodiment of the present application can be applied to the network equipment in 5G communication system and the communication between terminal, Or the communication between terminal and terminal or the communication between the network equipment and the network equipment.

Fig. 1 shows a kind of possible structural schematic diagram of communication system involved in the embodiment of the present application.Such as Fig. 1 institute Show, which includes that at least one network equipment 100 (one is only shown in Fig. 1) and each network equipment 100 connect The one or more terminals 102 connect.Wherein, the above-mentioned network equipment 100 can be base station, equipment of the core network, transmission node (transmission reference point, TRP), relay station or access point etc..The network equipment 100 can be global movement Communication system (global system for mobile communication, GSM) or CDMA (code division Multiple access, CDMA) base transceiver station (base transceiver station, BTS) in network, it can also To be the NB (NodeB) in wideband code division multiple access (wideband code division multiple access, WCDMA), It can also be the eNB or eNodeB (evolutional NodeB) in LTE.The network equipment 100 can also be cloud wireless access network Wireless controller under network (cloud radio access network, CRAN) scene.The network equipment 100 can also be that 5G is logical The network equipment in the network equipment or future evolution network in letter system；It can also be wearable device or mobile unit etc..

Terminal 200 can may be catv terminal for wireless terminal, which can be directed to user and provide language The equipment of sound and/or other business datum connectivity has the handheld device of wireless communication function, calculates equipment or be connected to nothing Other processing equipments, mobile unit, wearable device, the terminal in future 5G network or the following evolution of line modem PLMN network in terminal etc..Wireless terminal can be through wireless access network (Radio Access Network, RAN) and one Or multiple cores net is communicated, wireless terminal can be mobile terminal, such as mobile phone (or being " honeycomb " phone) and tool There is the computer of mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted movement Device, they exchange language and/or data and personal communication service (Personal with wireless access network Communication Service, PCS) phone, wireless phone, Session initiation Protocol (Session Initiation Protocol, SIP) phone, wireless local loop (Wireless Local Loop, WLL) stand, personal digital assistant Equipment such as (Personal Digital Assistant, PDA), wireless terminal may be mobile device, user equipment (user Equipment, UE), UE terminal, access terminal, wireless telecom equipment, terminal unit, terminal station, movement station (Mobile Station), mobile station (Mobile), distant station (Remote Station), remote station, remote terminal (Remote Terminal), subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), user agent (User Agent), terminal installation etc..Above-mentioned is only a kind of example, without being limited thereto in practical application.

In order to maintain the business in communication system to transmit, alleviate the signal transmitted in communication system when asked partially with frequency deviation Topic, user equipment need to synchronize operation according to the reference signal that the network equipment is sent.Wherein, it synchronizes and is divided into initial thick same Step is synchronous with time-frequency tracking essence, and initial coarse synchronization is PSS (the Primary Synchronization sent according to base station Signal, primary synchronization signal) and SSS (Secondary Synchronization Signal, secondary synchronization signal) come what is completed, And it is used for the synchronous reference signal of time-frequency tracking (Time/Freq terminal n cy Tracking) essence and is known as track reference signal (Tracking Reference Signal, TRS), for example, the TRS for time-frequency tracking is CRS in LTE system.Specifically , time-frequency tracking can be divided into two parts according to time domain and frequency domain: 1) temporal tracking and delay spread estimation: following range takes Certainly in the frequency domain density of TRS, tracking accuracy depends on the frequency domain bandwidth of TRS；2) frequency domain tracking and doppler spread estimation: tracking Range depends on the time domain density of TRS, and tracking accuracy depends on the time domain period of TRS.

The application constructs new TRS by using existing reference signal (i.e. pilot signal), to realize that time-frequency tracks.But It is, it should be noted that referring in the application is only a kind of possible mode for constructing the CSI-RS of new TRS, right In other existing pilot signals (e.g., CRS, the cell specific reference signal (Reduced CRS, RCRS) of reduction, PSS, SSS, PRS it) can also be used to construction TRS.

It should be noted that existing pilot signal used herein constructs the construction process of new TRS, not to original Pilot signal carries out any processing, is only sent out when sending by polymerizeing at least two pilot signals in the time domain It send, so that distant terminal carries out time-frequency tracking according at least two pilot signals received.It is substantially only will at least two A pilot signal is sent as TRS.

Below in conjunction with the Figure of description of the embodiment of the present application, the application is mentioned from the angle of reference signal transmission method The technical solution of confession is illustrated.Obviously, it is described be the application a part of the embodiment, instead of all the embodiments. It should be noted that technical characteristic is not the case where conflicting some or all of in any number of technical solutions provided below Under, it can be used in combination, form new technical solution.

Embodiment one:

Fig. 2 shows a kind of flow diagrams of the method for transmission of reference signals provided by the present application.This method is specifically wrapped It includes:

S201, the network equipment determine the first instruction information.

S202, the network equipment send the first instruction information to first terminal.

Correspondingly, opposite end first terminal receives the first instruction information.

Wherein, the above-mentioned network equipment can be the network equipment in communication system shown in Fig. 1, for example, base station；Above-mentioned First terminal can be the terminal device in communication system shown in FIG. 1.

The first instruction information in the application is used to indicate the running time-frequency resource of at least two CSI-RS to first terminal, this is extremely Few two CSI-RS are tracked for time-frequency.Exemplary, which is specifically used for instruction first terminal use and receives Track reference signal (i.e. the application by first indicate information indicated by least two CSI-RS regard TRS) carry out time-frequency with Track, until receiving next track reference signal.

It should be understood that being known as the reference signal for being used for time-frequency tracking carried on subcarrier to track ginseng in the application Signal is examined, i.e. at least two CSI-RS for being used for time-frequency tracking are known as time-frequency tracking signal by the application, the tracking in the application Reference signal is the internal logic command function according to the reference signal, and therefore, the track reference signal in the application can also To there is other names, the restriction that can't be to the embodiment of the present application of giving a name.

Due to that can be continued for constantly sending out when the base station in existing LTE system, which sends CRS to UE, carries out time-frequency tracking It send, so as to cause there are a large amount of signaling overheads and pilot pollutions in entire communication system.If designing a completely new TRS To carry out time-frequency tracking, it is necessary to completely new pilot tone model or pattern are designed it, and is notified using new signaling, thus Biggish reference signal expense is introduced, the service efficiency of resource is further decreased, meanwhile, new pilot signal can not be led with other Frequency signal is taken, and can only be used as time-frequency and track, cannot achieve other functions.

The network equipment in this way in the application is by sending the first instruction information to terminal, to inform what SS later was sent The CSI-RS for time-frequency tracking is contained in CSI-RS, so that terminal can after indicating information according to first received The CSI-RS for time-frequency tracking is obtained, to carry out time-frequency tracking.Utilize existing pilot signal in this way, then it can be according to existing Signal, to reduce corresponding pilot-frequency expense, at the same time it can also will act as other purposes pilot signal be used as time-frequency Tracking, reduces corresponding pilot-frequency expense.

Optionally, it when determining the first instruction information, can be determined according to two kinds of following implementations.It is specific:

Mode 1: include in the first instruction information that the network equipment is sent: at least two CSI-RS pairs for time-frequency tracking The resource allocation information of the CSI-RS answered.The resource allocation information of the CSI-RS is used to indicate at least two CSI-RS, and indicates It is used for time-frequency tracking.It illustrates, it is assumed that base station selected CSI-RS1 and CSI-RS2 joint carries out time-frequency tracking, and base station is to end End send CSI-RS's and do not include be exclusively used in channel state information acquisition CSI-RS1, at this point, referring to base shown in Fig. 3 It stands the pilot patterns of the CSI-RS sent to terminal, only comprising the CSI-RS1 and CSI-RS2 for time-frequency tracking in the pilot patterns.

It illustrates, it is assumed that base station selected CSI-RS1 and CSI-RS2 joint carries out time-frequency tracking, and base station is sent to terminal CSI-RS's and do not include the CSI-RS1 for being exclusively used in channel state information acquisition, at this point, referring to base station shown in Fig. 3 to end Hold the pilot patterns of the CSI-RS sent, the CSI-RS1 and CSI-RS2 only tracked comprising being used for time-frequency in the pilot patterns.

Mode 2: network side directly can send the first instruction information to terminal, to indicate preconfigured at least two CSI-RS, and indicate that it is used for time-frequency tracking.

Illustratively, the first instruction information is used to indicate at least two in the first CSI-RS resource set to first terminal The running time-frequency resource of CSI-RS；Alternatively, the first instruction information is used to indicate in the second CSI-RS resource set extremely to first terminal The running time-frequency resource of the CSI-RS of a few CSI-RS group.Wherein, each CSI-RS group is tracked for time-frequency, each CSI-RS group packet Include at least two CSI-RS.In mode 1, the first above-mentioned CSI-RS resource set and the second CSI-RS resource collection are combined into net Network equipment is the existing for obtaining the CSI- of channel state information (or other purposes, such as wave beam management) of first terminal configuration The CSI-RS resource set of RS, due to the CSI-RS resource integrate be combined into the network equipment as first terminal it is configured for its The CSI-RS resource set of the CSI-RS of his purposes.Therefore, the application directly can send the first instruction information to first terminal, To indicate preconfigured at least two CSI-RS, and indicate that it is used for time-frequency tracking, and terminal is receiving the first instruction letter It can be in the configured corresponding running time-frequency resource of CSI-RS resource set search, to receive the CSI- for time-frequency tracking after breath RS, without configuring the running time-frequency resource of special TRS for first terminal, can directly using network side be in running time-frequency resource, subtract Signaling overheads is lacked.

For example, the pilot patterns of the CSI-RS sent referring to base station shown in Fig. 4 to terminal, which embodies 4 The CSI-RS1 obtained for channel state information that the position RE of a CSI-RS1, i.e. base station are sent to terminal has 4 (i.e. CSI- RS1, CSI-RS2, CSI-RS3 and CSI-RS4), wherein CSI-RS1 and CSI-RS2 is base station selected for time-frequency tracking CSI-RS。

In a kind of example, which includes: the drawing information of the shared RE of at least two CSI-RS.

Mode 3: network side and terminal are surveyed and are then passed through according to stipulated form for both sides' pre-configuration CSI-RS resource set Send the time-frequency that the first instruction information finds corresponding CSI-RS with instruction terminal from the CSI-RS resource set of pre-configuration Resource.

Illustratively, the first above-mentioned instruction information is used to indicate in the first CSI-RS resource set extremely to first terminal The running time-frequency resource of few two CSI-RS；Alternatively, the first instruction information is used to indicate the second CSI-RS resource set to first terminal In at least one CSI-RS group CSI-RS running time-frequency resource, wherein each CSI-RS group for time-frequency track, each CSI- RS group includes at least two CSI-RS.In mode 2, the first above-mentioned CSI-RS resource set and the second CSI-RS resource collection It is combined into；Network side and terminal are surveyed according to the preconfigured CSI-RS resource set of scheduled mode (e.g., having agreement) in advance, because This, the network equipment directly can send the first instruction information to terminal to indicate that preconfigured CSI-RS resource set is configured CSI-RS set in which CSI-RS or which CSI-RS group for time-frequency tracking.

Further alternative, the first instruction information in aforesaid way 1 and mode 2 is used for first terminal instruction first The mark of at least two CSI-RS in CSI-RS resource set, the mark of the CSI-RS are used to indicate the time-frequency money of CSI-RS Source.The first instruction information in aforesaid way 1 and mode 2 is used to indicate in the second CSI-RS resource set to first terminal The group number of at least one CSI-RS group；Wherein, the group number of CSI-RS group is used to indicate the running time-frequency resource of the CSI-RS of CSI-RS group.

Wherein, the money for the CSI-RS for including in above-mentioned the first CSI-RS resource set and the second CSI-RS resource set Source configuration information include below with reference at least one of: period of the CSI-RS, the sub-frame offset value of CSI-RS, CSI-RS are accounted for The position of RB, the resource unit RE of CSI-RS occupied in RB number, the antenna port number of CSI-RS, CSI-RS Sequence initialization parameter, the drawing information of RE that occupies of CSI-RS to be to carry the carrier type of the CSI-SR.Above-mentioned CSI- The period of RS and sub-frame offset value can indicate the sub-frame information that the CSI-RS is occupied；Optionally, bit map can be passed through Mode indicates the sub-frame information that CSI-RS is occupied.For example, being respectively indicated in a subframe with 1 and 0 has CSI-RS and one There is no CSI-RS in subframe, optionally, which can be 5,10,20 or 40 etc..But the application is not limited in this.It is above-mentioned CSI-RS occupy RE drawing information include CSI-RS occupy RE drawing indexing, in this way, terminal can be according to the figure Sample index determines the RE that the CSI-RS is occupied in a RB with preset pattern, but the application is without being limited thereto.

Certainly, network side and terminal side can preset the part resource configuration information of the CSI-RS, for example, can be pre- Several RB in CSI-RS occupancy system bandwidth are first set, or preset the number in the period of the CSI-RS or the RB of occupancy Mesh, etc..Correspondingly, network side and terminal side can preset at least one for the RE that the CSI-RS is occupied in a RB Pattern.

Optionally, the network equipment, can be according to when choosing at least two CSI-RS for time-frequency tracking in the application Preset rules are selected, to reduce the expense of notice signaling.The default rule of the CSI-RS of time-frequency tracking are carried out for selection It can then pre-set, such as first pass through agreement setting in advance, or first pass through signal deployment in advance.Illustratively, The preset rules can satisfy at least one of following conditions: frequency domain density is more than or equal to X (X >=1), network side antenna end Mouth number is less than or equal to Y (Y≤4), and time-domain symbolic number is less than or equal to Z (Z≤2).Certainly, above-mentioned several pre-defined rules are only It is a kind of example, in practical applications, as long as the CSI-RS that can satisfy the condition for reducing notice signaling expense can choose, Here without limitation.

S203, the network equipment send at least two CSI-RS to first terminal.

The corresponding precoding matrix information of each CSI-RS that the network equipment is sent, and each precoding matrix information can To be the beam information of the CSI-RS, terminal, which is based on beam information, to realize that wave beam management, channel state information obtain to channel It takes and rate-matched.It illustratively, can be in a time when network equipment sends at least two CSI-RS to first terminal N number of time quantum in unit sends at least a set of reference signal to terminal, and every set reference signal includes tracking for time-frequency At least two CSI-RS.Wherein, above-mentioned time quantum, which integrates, can be the restricted measurement that the network equipment configures as terminal Subframe collection, N number of subframe of the network equipment in the restricted measurement subframe collection send M to UE and cover reference signal, wherein this is N number of Subframe can be N number of continuous subframe or N number of discontinuous subframe, it is not limited here.Specifically, base station each subframe to Terminal sends at least a set of reference signal, and terminal is after receiving reference signal, just according to reference signal in the subframe into The corresponding time-frequency tracking of row, wave beam management, channel state information obtains and rate-matched.

S204, first terminal determine at least two CSI-RS according to the first instruction information.

Illustratively, terminal determines at least two CSI- tracked for time-frequency according to the first instruction information received The position of RE shared by RS, the position based on RE shared by it receive at least two CSI-RS.

S205, first terminal according at least two CSI-RS to the data that the network equipment that receives is sent carry out time-frequency with Track.

In a kind of example, terminal, can be from these CSI- after receiving at least two CSI-RS for time-frequency tracking Any two CSI-RS is selected in RS, then determines phase deviation and time interval between the two CSI-RS, then, Based on the phase deviation and time interval between the two CSI-RS, corresponding frequency departure is estimated, and to the two CSI- RS carries out joint time offset estimation, estimates corresponding time deviation, finally, carrying out frequency benefit based on the frequency departure estimated It repays, time migration is carried out based on the time deviation estimated, to complete time-frequency tracking, i.e. Time and Frequency Synchronization, eliminate interference, thus So that between the network equipment and terminal can normal communication, improve user experience.

In addition, network, which is surveyed, to be used as other purposes for the CSI-RS for being used for time-frequency tracking, to reduce corresponding pilot tone Expense.For example, rate-matched, wave beam management and channel state information obtain.

Embodiment two:

Fig. 5 shows a kind of flow diagram of the method for transmission of reference signals provided by the present application.This method is specifically wrapped It includes:

S301, the network equipment determine the time-frequency of at least two CSI-RS in preconfigured third CSI-RS resource set Resource, alternatively, determining the time-frequency of CSI-RS at least one CSI-RS group in preconfigured 4th CSI-RS resource set Resource, wherein each CSI-RS group includes at least two CSI-RS.

S302, the network equipment send CSI-RS to first terminal using the running time-frequency resource of at least two CSI-RS；Wherein, CSI-RS is tracked for time-frequency.

Optionally, at least two CSI- in preconfigured third CSI-RS resource set are determined in above-mentioned steps S301 The running time-frequency resource of RS includes:

S301a, the network equipment determine in preconfigured third CSI-RS resource set extremely according to net-work parameter information The running time-frequency resource of few two CSI-RS.

Optionally, at least one CSI- in preconfigured 4th CSI-RS resource set is determined in above-mentioned steps S301 The running time-frequency resource of CSI-RS includes: in RS group

S301b, the network equipment determine in preconfigured 4th CSI-RS resource set extremely according to net mate information The running time-frequency resource of CSI-RS in a few CSI-RS group.

Wherein, the parameter information in above-mentioned S301a, S301b includes at least one of following information: network device management Cell cell ID and cell and the running time-frequency resource of CSI-RS between mapping relations, the cell of the cell of network device management Mapping relations between the region ID in locating region and region and the running time-frequency resource of CSI-RS, CSI-RS resource set are configured CSI-RS gathers interior CSI-RS resource quantity.

S303, first terminal determine the time-frequency of at least two CSI-RS in preconfigured third CSI-RS resource set Resource, alternatively, determining the time-frequency of CSI-RS at least one CSI-RS group in preconfigured 4th CSI-RS resource set Resource；Wherein, each CSI-RS group includes at least two CSI-RS.

S304, first terminal receive CSI-RS using the running time-frequency resource of at least two CSI-RS；Wherein, when CSI-RS is used for Frequency tracks.

Optionally, at least two CSI- in preconfigured third CSI-RS resource set are determined in above-mentioned steps S303 The running time-frequency resource of RS, comprising:

S303a, first terminal determine at least two CSI- in third CSI-RS resource set according to net-work parameter information The running time-frequency resource of RS.

At least one CSI- in preconfigured 4th CSI-RS resource set is determined in optional above-mentioned steps S303 The running time-frequency resource of CSI-RS in RS group, comprising:

S303b, first terminal determine at least two CSI- in the 4th CSI-RS resource set according to net-work parameter information The running time-frequency resource of RS.

Wherein, the net-work parameter information in step S303a and step S303b includes at least one of following information: the Mapping relations between the serving cell ID and cell of one terminal and the running time-frequency resource of CSI-RS, locating for the server cell of terminal Mapping relations between the region ID in region and region and the running time-frequency resource of CSI-RS, the configured CSI-RS of CSI-RS resource set CSI-RS resource quantity in gathering.

In a kind of example, if the second CSI-RS resource set only includes a CSI-RS group, then second is corresponded to It is 1 that the configured CSI-RS of CSI-RS resource set, which gathers interior CSI-RS resource quantity, at this point, according to above-mentioned CSI-RS resource number It is the CSI-RS tracked for time-frequency that amount 1, which directly determines unique CSI-RS group included in the second CSI-RS resource set, Group.In such a scenario, the network equipment is not necessarily to be indicated to terminal side transmission the first instruction information.

305, first terminal according at least two CSI-RS to the data that the network equipment that receives is sent carry out time-frequency with Track.

Need to illustrate when, step S302 can refer to the step S203 in embodiment in the present embodiment.It is walked in the present embodiment Step S205. i.e. the present embodiment that rapid S305 can refer to embodiment one kind description relevant to embodiment one can refer to embodiment In content, which is not described herein again.

Embodiment three:

Fig. 6 shows the flow diagram of the method for another transmission of reference signals provided by the present application, in the present embodiment In three, when the network equipment needs to carry out actual schedule to terminal, then the CSI- for time-frequency tracking can be used with instruction terminal RS carries out rate-matched.

As shown in fig. 6, the step S201-S204 in reference embodiment one, alternatively, the step in reference embodiment two S301-S304, on this basis, this method further include:

S401, the network equipment send second indication information to terminal, which is used to indicate second terminal root Rate-matched is carried out according at least two CSI-RS.Correspondingly, opposite end second terminal receives the second indication information.

S402, second terminal carry out rate-matched according to second indication information and at least two CSI-RS.

In step S306, rate-matched (Rate matching) refers to that the bit on transmission channel is retransmitted (repeated) or it is perforated (punctured) that (punching is exactly to destroy current bit, while successively by subsequent bit Forward one), to match the bearing capacity of physical channel, channel reaches bit rate required by transformat when mapping.Show Example, terminal, according to the pilot frequency mode of these CSI-RS, calculates after receiving at least two CSI-RS for time-frequency tracking Output bit number on transmission channel between network side and terminal side out, if input bit number is less than output bit number, that is, Use repetition；If input bit number is more than output bit number, that is, use puncturing.

It should be noted that the rate-matched technology that the present embodiment refers to is the prior art, therefore, the application is for rate-matched Implement and without limitation.

It should be noted that above-mentioned step S202 and step S401 can be sent simultaneously, and it is exemplary, a letter can be sent It enables, the first instruction information, also carrying second indication information is carried in the signaling, can also be sent respectively, the application is simultaneously unlimited The fixed sequencing that it is executed.

Example IV:

Fig. 7 shows the flow diagram of the method for another transmission of reference signals provided by the present application, in the present embodiment In three, when the network equipment needs to carry out actual schedule to terminal, any CSI-RS for being used for time-frequency tracking can be allocated to The pilot resources of this terminal or other terminals as wave beam management.

As shown in fig. 7, the step S201-S204 in reference embodiment one, alternatively, the step in reference embodiment two S301-S304, on this basis, this method further include:

S501, the network equipment send third to terminal and indicate that information, third instruction information are used to indicate third terminal root Wave beam management is carried out according to any CSI-RS at least two CSI-RS.Correspondingly, opposite end third terminal receives third instruction letter Breath.

S502, third terminal indicate that any CSI-RS in information and at least two CSI-RS carries out wave beam according to third Management.

Wherein, wave beam management includes beam alignmetn and beam tracking.

In a kind of example, carrying out wave beam management using CSI-RS may include: that terminal is being received for time-frequency tracking At least two CSI-RS after, any CSI-RS that can be observed at least two CSI-RS corresponds to the signal strength on wave beam, To carry out beam alignmetn and/or beam tracking.It should be noted that the wave beam administrative skill that the present embodiment refers to is the prior art, therefore, Specific implementation and without limitation of the application for wave beam management.

It should be noted that above-mentioned step S202 and step S501 can be sent, and it is exemplary, a signaling can be sent, The first instruction information is carried in the signaling, also carrying third indicates information, can also send respectively, the application does not limit it The sequencing of execution.

Embodiment five:

Fig. 8 shows the flow diagram of the method for another transmission of reference signals provided by the present application, in the present embodiment In three, when the network equipment needs to carry out actual schedule to terminal, any CSI-RS for being used for time-frequency tracking can be allocated to The pilot resources that this terminal or other terminals are obtained as channel state information.

As shown in figure 8, the step S201-S204 in reference embodiment one, alternatively, the step in reference embodiment two S301-S304, on this basis, this method further include:

S601, the network equipment to terminal send the 4th instruction information, the 4th instruction information be used to indicate the 4th terminal according to Any CSI-RS at least two CSI-RS obtains channel state information.Correspondingly, the 4th terminal of opposite end receives the 4th instruction Information.

S602, the 4th terminal obtain channel according to any CSI-RS in the 4th instruction information and at least two CSI-RS Status information.

Wherein, channel state information is the information for being able to reflect channel status, such as: pre-coding matrix instruction (Precoding Matrix Indicator, PMI), order instruction (Rank Indication, RI), channel quality instruction (Channel Quality Indicator, CQI) etc., wherein CQI is used to reflect Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) channel quality, RI is used to refer to the effective data number of plies of PDSCH, PMI It is used to refer to the index of codebook set.

In a kind of example, obtaining channel state information using CSI-RS may include: that terminal is being received for time-frequency After at least two CSI-RS of tracking, the signal that any CSI-RS that can be observed at least two CSI-RS is corresponded on wave beam is strong Degree, to obtain channel state information.

It should be noted that above-mentioned step S202 and step S601 can be sent, and it is exemplary, a signaling can be sent, The first instruction information is carried in the signaling, is also carried the 4th instruction information, can also be sent respectively, the application does not limit it The sequencing of execution.

It should be noted that the channel state information acquiring technology that the present embodiment refers to is the prior art, therefore, the application is for letter The specific implementation and without limitation that channel state information obtains.

It should be noted that after the application states embodiment one or embodiment two in realization, embodiment one or embodiment two Any combination can be carried out with subsequent embodiment three to embodiment five, that is, utilize the CSI-RS for time-frequency tracking can also be real Now at least one of purposes such as obtaining rate-matched, wave beam management and channel state information, here without limitation.It answers It is noted that although the application provides only three kinds of purposes, but as long as the CSI-RS provided by the present application for time-frequency tracking can It shall fall in the protection scope of this application with the function of realization.

It should be noted that the first terminal, second terminal, third terminal, the 4th terminal in the application can be same Terminal, or different terminals, the application are not construed as limiting this.It should be noted that first in embodiment one and embodiment two is whole End can also be changed to other terminals, here without limitation.

The sequencing for the above-mentioned steps that the application does not execute the network equipment and terminal is defined, above a The execution sequence of step should be determined by its function and internal logic, i.e., the size of the serial number of above-mentioned steps should not be implemented the application The implementation process of example constitutes any restriction.

The above-mentioned angle mainly interacted between the network equipment and terminal carries out scheme provided by the embodiments of the present application It introduces.It is understood that above-mentioned each network equipment or terminal are in order to realize the above functions, it comprises execute each function It can corresponding hardware configuration and/or software module.Those skilled in the art should be readily appreciated that, in conjunction with disclosed herein Embodiment description each exemplary algorithm steps, the application can with the combining form of hardware or hardware and computer software come It realizes.Some function is executed in a manner of hardware or computer software driving hardware actually, spy depending on technical solution Fixed application and design constraint.Professional technician can retouch each specific application using distinct methods to realize The function of stating, but this realization is it is not considered that exceed scope of the present application.

The embodiment of the present application can carry out the division of functional module, example according to above method example to the network equipment, terminal Such as, each functional module of each function division can be corresponded to, two or more functions can also be integrated at one It manages in module.Above-mentioned integrated module both can take the form of hardware realization, can also use the form of software function module It realizes.It should be noted that being schematical, only a kind of logic function stroke to the division of module in the embodiment of the present application Point, there may be another division manner in actual implementation.

In the case where each function division of use correspondence each functional module, Fig. 9 shows network provided by the present application A kind of possible structural schematic diagram of equipment, as shown in figure 9, the network equipment, may include: determination unit 701, transmission unit 702, in which:

Determination unit 701, for supporting the network equipment to execute S201, S301 shown in Fig. 2.

Transmission unit 702, for supporting the network equipment to execute S202, S302 in Fig. 2, in S401 in Fig. 6, Fig. 7 Step S601 in S501, Fig. 8.

As shown in figure 9, the network equipment further includes selecting unit 703, selecting unit 703, for supporting that the network equipment is real The selection course of pilot signal needed for the existing selection described above according to pre-defined rule.

It should be noted that all related contents for each step that above method embodiment is related to can quote correspondence The function of functional module describes, and details are not described herein.

Under using integrated unit, the embodiment of the present application also provides a kind of network equipment, such as base station, Figure 10 is shown A kind of simplified architecture of base station schematic diagram.Base station includes 801 parts and 802 parts.801 parts are mainly used for radiofrequency signal Transmitting-receiving and the conversion of radiofrequency signal and baseband signal；802 parts are mainly used for Base-Band Processing, control etc. base station.801 Part may be generally referred to as Transmit-Receive Unit, transceiver, transmission circuit or transceiver etc..802 parts are usually the control of base station Center may be generally referred to as processing unit, execute for control base station above in connection with step performed by the network equipment.Specifically It can be found in the description of above-mentioned relevant portion.

The Transmit-Receive Unit of 801 parts is referred to as transceiver or transceiver etc. comprising antenna and radio frequency unit, Middle radio frequency unit is mainly used for carrying out radio frequency processing.Optionally, it can will be regarded in 801 parts for realizing the device of receive capabilities For receiving unit, transmission unit will be considered as realizing the device of sending function, i.e. 801 parts include receiving unit and send single Member.Receiving unit is referred to as receiver, receiver or reception circuit etc., and transmission unit is properly termed as transmitter, transmitter Or transmit circuit etc..

802 parts may include one or more veneers, and each veneer may include one or more processors and one Or multiple memories, processor are used to read and execute the program in memory to realize Base-Band Processing function and to base station Control.Multiple veneers if it exists can be interconnected to increase processing capacity between each veneer.As optional embodiment party in one Formula is also possible to multiple veneers and shares one or more processors or the shared one or more memories of multiple veneers, or Person is multiple veneers while sharing one or more processors.Wherein, memory and processor, which can be, integrates, It can be and be independently arranged.In some embodiments, 801 parts and 802 parts, which can be, integrates, and is also possible to solely It erects and sets.It is realized in a chip in addition, the repertoire in 802 parts can integrate, it can also be integrated with partial function Realize that another part function is integrated in other on one or more chips and realizes in a chip, the application to this without It limits.

For example, in one implementation, corresponding to the method provided above for being used for transmission reference signal, processing unit For executing other steps in the step of network equipment executes in S201, S203 shown in Fig. 2 and/or the application.Transmit-Receive Unit For executing other steps in the step of network equipment executes in S202, S204 in Fig. 2 and/or the application.

Further, Transmit-Receive Unit is used to execute the step of network equipment executes in the S401 in Fig. 6 and/or the application In other steps.

Further, Transmit-Receive Unit is used to execute the step of network equipment executes in the S501 in Fig. 7 and/or the application In other steps.

Further, Transmit-Receive Unit is used to execute the step of network equipment executes in the S601 in Fig. 8 and/or the application In other steps.

For example, in one implementation, corresponding to the method provided above for being used for transmission reference signal, processing unit For executing other steps in the step of network equipment in the S301 in Fig. 5 executes and/or the application.Transmit-Receive Unit is used Other steps in the step of executing network equipment execution in the S302 in Fig. 5 and/or the application.

In the case where each function division of use correspondence each functional module, Figure 11 shows terminal provided by the present application A kind of possible structural schematic diagram, as shown in figure 11, which may include: receiving unit 901, determination unit 902, In:

Receiving unit 901, instruction information, reference signal and data for supporting terminal reception network side to send, and For supporting terminal to execute the S304 in Fig. 5.

Determination unit 902, for supporting terminal to execute the S204 in Fig. 2, S303 shown in Fig. 5.

Further, terminal further include: time-frequency tracking cell 903, de-rate matching unit 904, wave beam administrative unit 905, channel detection unit 906, in which:

Time-frequency tracking cell 903, for supporting terminal to execute S305 shown in Fig. 5.

De-rate matching unit 904, for supporting terminal to execute S402 shown in Fig. 6.

Wave beam administrative unit 905, for supporting terminal to execute S502 shown in Fig. 7.

Channel detection unit 906, for supporting terminal to execute S602 shown in Fig. 8.

Under using integrated unit, the embodiment of the present application also provides a kind of terminals.Figure 12 shows a kind of simplification Terminal structure schematic diagram.It is convenient to be easy to understand and illustrate, Tu12Zhong, terminal with mobile phone as an example.As shown in figure 12, terminal packet Include processor, memory, radio circuit, antenna and input/output unit.Processor is mainly used for communication protocol and leads to Letter data is handled, and is controlled terminal, and software program, the data etc. of processing software program are executed.Memory master It is used to store software program and data.Radio circuit is mainly used for the conversion of baseband signal and radiofrequency signal and believes radio frequency Number processing.Antenna is mainly used for the radiofrequency signal of transceiving electromagnetic waveshape.Input/output unit, such as touch screen, display screen, Keyboard etc. is mainly used for receiving the data of user's input and to user's output data.It should be noted that the end of some types End can not have input/output unit.Wherein, memory and processor, which can be, integrates, and is also possible to independently to set It sets.

When needing to send data, after processor carries out Base-Band Processing to sent data, output baseband signal is to penetrating Radiofrequency signal will be passed through antenna in the form of an electromagnetic wave to outgoing after baseband signal progress radio frequency processing by frequency circuit, radio circuit It send.When there is data to be sent to terminal, radio circuit receives radiofrequency signal by antenna, and radiofrequency signal is converted to base band letter Number, and baseband signal is exported to processor, baseband signal is converted to data and handled the data by processor.For just A memory and processor are illustrated only in explanation, Figure 12.In actual end product, there may be one or more Processor and one or more memories.Memory is referred to as storage medium or storage equipment etc..Memory can be It is arranged independently of processor, is also possible to be integral to the processor together, the embodiment of the present application is without limitation.

In the embodiment of the present application, can by with transmission-receiving function antenna and radio circuit be considered as the transmitting-receiving list of terminal Processor with processing function is considered as the processing unit of terminal by member.As shown in figure 12, terminal includes 1001 He of Transmit-Receive Unit Processing unit 1002.Transmit-Receive Unit is referred to as transceiver (including transmitter and/or receiver), transceiver, R-T unit Deng.Processing unit is referred to as processor, handles veneer, processing module, processing unit etc..It optionally, can be single by transmitting-receiving For realizing the device of receive capabilities be considered as receiving unit in member 1001, by Transmit-Receive Unit 1001 for realizing sending function Device is considered as transmission unit, i.e. Transmit-Receive Unit 1001 includes receiving unit and transmission unit.Transmit-Receive Unit is referred to as sometimes Transceiver, transceiver or transmission circuit etc..Receiving unit is referred to as receiver, receiver or reception circuit etc. sometimes. Transmission unit is referred to as transmitter, transmitter or transmit circuit etc. sometimes.In some embodiments, Transmit-Receive Unit 1001 It can be with processing unit 1002 and to integrate, be also possible to be independently arranged.In addition, the whole in processing unit 1002 Function can integrate to be realized in a chip, and realization another part function in a chip can also be integrated in partial function It is integrated in other on one or more chips and realizes, the application is to this without limiting.

For example, in one implementation, based on the method provided above for being used for transmission reference signal, Transmit-Receive Unit 1001 for executing other steps in the step of terminal execution information is received and dispatched and/or the application.Processing unit 1002 is for holding Other steps in S204, S205 and/or the application in row Fig. 2.

Further, processing unit 1002 is for executing the S402 in Fig. 6 and/or other steps in the application.

Further, processing unit 1002 is for executing the S502 in Fig. 7 and/or other steps in the application.

Further, processing unit 1002 is for executing the S602 in Fig. 8 and/or other steps in the application.

For example, in one implementation, based on the method provided above for being used for transmission reference signal, Transmit-Receive Unit 1001 for supporting terminal to execute the S304 in Fig. 5 and/or other steps in the application.Processing unit 1002 is for executing Other steps in S303 and/or the application in Fig. 5.

The explanation of related content and beneficial effect can refer to provided above in any communication device of above-mentioned offer Corresponding embodiment of the method, details are not described herein again.

Processor mentioned above can be a processor, be also possible to the general designation of multiple processing elements.For example, place Managing device is a central processing unit (central processing unit, CPU), is also possible to specific integrated circuit (application specific integrated circuit, ASIC), or be arranged to implement the embodiment of the present application One or more integrated circuits, such as: one or more microprocessors (digital signal processor, DSP), Or, one or more field programmable gate array (field programmable gate array, FPGA).Wherein, it handles Device can be held by running or executing the software program being stored in memory, and the data that calling is stored in memory The various functions of row network function node.

Memory above can be read-only memory (read-only memory, ROM) or can store static information With the other kinds of static storage device of instruction, random access memory (random access memory, RAM) or can The other kinds of dynamic memory for storing information and instruction, is also possible to Electrically Erasable Programmable Read-Only Memory (electrically erasable programmable read-only memory, EEPROM), CD-ROM (compact Disc read-only memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, light Dish, Digital Versatile Disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carry or Store have instruction or data structure form desired program code and can by any other medium of computer access, but It is without being limited thereto.Memory can be individually present, and can also be connected by communication bus with processor.Memory can also and be located Reason device integrates.Wherein, the memory is used to store the software program for executing scheme provided by the embodiments of the present application, and Execution is controlled by processor.

It should be understood by those skilled in the art that, the embodiment of the present application can provide as the production of method, system or computer program Product.Therefore, in terms of the embodiment of the present application can be used complete hardware embodiment, complete software embodiment or combine software and hardware Embodiment form.Moreover, it wherein includes computer available programs generation that the embodiment of the present application, which can be used in one or more, The meter implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of code The form of calculation machine program product.

The embodiment of the present application is referring to the method, equipment (system) and computer program product according to the embodiment of the present application Flowchart and/or the block diagram describe.It should be understood that can be realized by computer program instructions in flowchart and/or the block diagram The combination of process and/or box in each flow and/or block and flowchart and/or the block diagram.It can provide these calculating Processing of the machine program instruction to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices Device is to generate a machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute For realizing the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram Device.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Obviously, those skilled in the art can carry out various modification and variations without departing from this Shen to the embodiment of the present application Spirit and scope please.In this way, if these modifications and variations of the embodiment of the present application belong to the claim of this application and its wait Within the scope of technology, then the application is also intended to include these modifications and variations.

Claims

1. a kind of method for being used for transmission reference signal, which is characterized in that the described method includes:

Determine that the first instruction information, the first instruction information are used to indicate at least two channel state informations ginseng to first terminal The running time-frequency resource of signal CSI-RS is examined, at least two CSI-RS is tracked for time-frequency；

The first instruction information is sent to the first terminal.

2. the method as described in claim 1, which is characterized in that

The first instruction information is used to indicate at least two CSI- in the first CSI-RS resource set to the first terminal The running time-frequency resource of RS；

Alternatively, the first instruction information is used to indicate at least one of second CSI-RS resource set to the first terminal The running time-frequency resource of the CSI-RS of CSI-RS group；Wherein, each CSI-RS group is tracked for time-frequency, and each CSI-RS group includes At least two CSI-RS.

3. the method as described in claim 1, which is characterized in that the method also includes:

Select at least two CSI-RS.

4. the method according to claim 1, which is characterized in that the method also includes:

To second terminal send second indication information, the second indication information be used to indicate the second terminal according to described in extremely Few two CSI-RS carry out rate-matched；

And/or

Third is sent to third terminal and indicates information, and third instruction information is used to indicate the third terminal according to extremely Any CSI-RS in few two CSI-RS carries out wave beam management；

And/or

To the 4th terminal send the 4th instruction information, it is described 4th instruction information be used to indicate the 4th terminal according to described in extremely Any CSI-RS in few two CSI-RS obtains channel state information.

5. a kind of method for being used for transmission reference signal, which is characterized in that the method also includes:

The first instruction information is received, the first instruction information is used to indicate at least two channel state informations ginseng to first terminal The running time-frequency resource of signal CSI-RS is examined, at least two CSI-RS is tracked for time-frequency；

At least two CSI-RS is determined according to the first instruction information.

6. method as claimed in claim 5, which is characterized in that the method also includes:

Determine the first CSI-RS resource set；Wherein, the first instruction information is used for first terminal instruction described the The running time-frequency resource of at least two CSI-RS in one CSI-RS resource set；

Alternatively,

Determine the second CSI-RS resource set；Wherein, the first instruction information is used for first terminal instruction described the The running time-frequency resource of the CSI-RS of at least one CSI-RS group in two CSI-RS resource set；Wherein, each CSI-RS group is used for Time-frequency tracking, each CSI-RS group include at least two CSI-RS.

7. method as claimed in claim 5, which is characterized in that the method also includes:

Time-frequency tracking is carried out to the data that the network equipment received is sent according at least two CSI-RS.

8. such as the described in any item methods of claim 5-7, which is characterized in that the method also includes:

Second indication information is received, the second indication information is used to indicate the first terminal according at least two CSI- RS carries out rate-matched；Rate-matched is carried out according to the second indication information and at least two CSI-RS；

And/or

It receives third and indicates that information, the third instruction information are used to indicate the first terminal according at least two CSI- Any CSI-RS in RS carries out wave beam management；Appointing in information and at least two CSI-RS is indicated according to the third One CSI-RS carries out wave beam management；

And/or

The 4th instruction information is received, the 4th instruction information is used to indicate the first terminal according at least two CSI- Any CSI-RS in RS obtains channel state information；According in the 4th instruction information and at least two CSI-RS Any CSI-RS obtain channel state information.

9. a kind of network equipment, which is characterized in that the network equipment includes:

Determination unit, for determining that the first instruction information, the first instruction information are used for first terminal instruction at least two The running time-frequency resource of channel state information reference signals CSI-RS, at least two CSI-RS are tracked for time-frequency；

Transmission unit, for sending the first instruction information to the first terminal.

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

11. the network equipment as claimed in claim 9, which is characterized in that the network equipment further include:

Selecting unit, for selecting at least two CSI-RS.

12. such as the described in any item network equipments of claim 9-11, which is characterized in that

The transmission unit, is also used to:

Second indication information is sent to the terminal, the second indication information is used to indicate second terminal according to described at least two A CSI-RS carries out rate-matched；

And/or

Third is sent to the terminal and indicates information, and third instruction information is used to indicate the second terminal according to extremely Any CSI-RS in few two CSI-RS carries out wave beam management；

And/or

To the terminal send the 4th instruction information, it is described 4th instruction information be used to indicate the second terminal according to described in extremely Any CSI-RS in few two CSI-RS obtains channel state information.

13. a kind of first terminal, which is characterized in that the first terminal further include:

Receiving unit, for receiving the first instruction information, the first instruction information is used for first terminal instruction at least two The running time-frequency resource of channel state information reference signals CSI-RS, at least two CSI-RS are tracked for time-frequency；

Determination unit, for determining at least two CSI-RS according to the first instruction information.

14. first terminal as claimed in claim 13, which is characterized in that

The determination unit is also used to determine the first CSI-RS resource set；Wherein, the first instruction information is used for described First terminal indicates the running time-frequency resource of at least two CSI-RS in the first CSI-RS resource set；Alternatively, being also used to really Fixed second CSI-RS resource set；Wherein, the first instruction information is used to indicate the 2nd CSI- to the first terminal The running time-frequency resource of the CSI-RS of at least one CSI-RS group in RS resource collection；Wherein, each CSI-RS group for time-frequency with Track, each CSI-RS group include at least two CSI-RS.

15. first terminal as claimed in claim 13, which is characterized in that the first terminal further include:

Time-frequency tracking cell, when for being carried out according at least two CSI-RS to the data that the network equipment received is sent Frequency tracks.

16. such as the described in any item first terminals of claim 13-15, which is characterized in that

The receiving unit, is also used to receive second indication information, and the second indication information is used to indicate the first terminal Rate-matched is carried out according at least two CSI-RS；

The first terminal further include: de-rate matching unit, for according to the second indication information and described at least two CSI-RS carries out rate-matched；

And/or

The receiving unit, is also used to receive third instruction information, and the third instruction information is used to indicate the first terminal Wave beam management is carried out according to any CSI-RS at least two CSI-RS；

The first terminal further include: wave beam administrative unit, for indicating information and described at least two according to the third Any CSI-RS in CSI-RS carries out wave beam management；

And/or

The receiving unit, is also used to receive the 4th instruction information, and the 4th instruction information is used to indicate the first terminal Channel state information is obtained according to any CSI-RS at least two CSI-RS；

The first terminal further include: channel detection unit, for according to the 4th instruction information and described at least two Any CSI-RS in CSI-RS obtains channel state information.

17. the method according to claim 1, the described in any item network equipments of claim 9-12, right are wanted Seek the described in any item first terminals of 13-16, which is characterized in that the first instruction information includes: at least two CSI- The resource allocation information of the corresponding CSI-RS of RS.

18. the method according to claim 1, the described in any item network equipments of claim 9-12, right are wanted Seek the described in any item first terminals of 13-16, which is characterized in that the first instruction information includes: at least two CSI- The drawing information of the shared RE of RS.

19. first as described in method, the network equipment described in any one of claim 10, claim 14 as described in claim 2,6 Terminal, which is characterized in that

The first instruction information is used to indicate at least two CSI- in the first CSI-RS resource set to the first terminal The mark of RS, the mark of the CSI-RS are used to indicate the running time-frequency resource of the CSI-RS；

Alternatively, the first instruction information is used to indicate at least one of second CSI-RS resource set to the first terminal The group number of CSI-RS group；Wherein, the group number of the CSI-RS group is used to indicate the running time-frequency resource of the CSI-RS of the CSI-RS group.

20. a kind of method for being used for transmission reference signal, which is characterized in that the described method includes:

The running time-frequency resource of at least two CSI-RS in preconfigured third CSI-RS resource set is determined, alternatively, determining pre- The running time-frequency resource of CSI-RS at least one the CSI-RS group in the 4th CSI-RS resource set first configured；Wherein, each CSI-RS group includes at least two CSI-RS；

CSI-RS is sent to first terminal using the running time-frequency resource of at least two CSI-RS；Wherein, the CSI-RS is used for Time-frequency tracking.

21. method as claimed in claim 20, which is characterized in that the preconfigured third CSI-RS resource set of determination In the running time-frequency resource of at least two CSI-RS include: that preconfigured 3rd CSI-RS money is determined according to net-work parameter information The running time-frequency resource of at least two CSI-RS in the set of source；

The time-frequency money of CSI-RS at least one CSI-RS group in the preconfigured 4th CSI-RS resource set of determination Source includes: to determine at least one CSI-RS group in preconfigured 4th CSI-RS resource set according to net mate information The running time-frequency resource of middle CSI-RS；

Wherein, the parameter information includes at least one of following information: the cell ID of the cell of the network device management And the mapping relations between cell and the running time-frequency resource of CSI-RS, region locating for the cell of the cell of the network device management Mapping relations between region ID and region and the running time-frequency resource of CSI-RS, in CSI-RS resource set configured CSI-RS set CSI-RS resource quantity.

22. the method as described in claim 20 or 21, which is characterized in that the method also includes:

And/or

23. a kind of method for being used for transmission reference signal, which is characterized in that the described method includes:

The running time-frequency resource of at least two CSI-RS in preconfigured third CSI-RS resource set is determined, alternatively, determining pre- The running time-frequency resource of CSI-RS at least one the CSI-RS group in the 4th CSI-RS resource set first configured；Wherein, described every A CSI-RS group includes at least two CSI-RS；

CSI-RS is received using the running time-frequency resource of at least two CSI-RS；Wherein, the CSI-RS is tracked for time-frequency.

24. method as claimed in claim 23, which is characterized in that

The running time-frequency resource of at least two CSI-RS in the preconfigured third CSI-RS resource set of determination, comprising: root According to net-work parameter information, the running time-frequency resource of at least two CSI-RS in the third CSI-RS resource set is determined；

The time-frequency money of CSI-RS at least one CSI-RS group in the preconfigured 4th CSI-RS resource set of determination Source, comprising: according to net-work parameter information, determine the time-frequency money of at least two CSI-RS in the third CSI-RS resource set Source；

Wherein, the net-work parameter information includes at least one of following information: the serving cell ID of the first terminal with And the mapping relations between cell and the running time-frequency resource of CSI-RS, the region ID in region locating for the server cell of the terminal and Mapping relations between region and the running time-frequency resource of CSI-RS, the configured CSI-RS of CSI-RS resource set gather interior CSI-RS resource Quantity.

25. method as claimed in claim 23, which is characterized in that the method also includes:

26. such as the described in any item methods of claim 23-25, which is characterized in that

And/or

27. a kind of network equipment, which is characterized in that the described method includes:

Determination unit, for determining that the time-frequency of at least two CSI-RS in preconfigured third CSI-RS resource set provides Source, alternatively, for determine CSI-RS at least one CSI-RS group in preconfigured 4th CSI-RS resource set when Frequency resource；Wherein, each CSI-RS group includes at least two CSI-RS；

Transmission unit, for using the running time-frequency resource of at least two CSI-RS to send CSI-RS to first terminal；Wherein, institute CSI-RS is stated to track for time-frequency.

28. the network equipment as claimed in claim 27, which is characterized in that

The determination unit is in the time-frequency money for determining at least two CSI-RS in preconfigured third CSI-RS resource set It is specifically used for when source: according to net-work parameter information, determines at least two in preconfigured third CSI-RS resource set The running time-frequency resource of CSI-RS；Alternatively,

Determination unit CSI- in determining at least one CSI-RS group in preconfigured 4th CSI-RS resource set It is specifically used for when the running time-frequency resource of RS: according to net mate information, determines in preconfigured 4th CSI-RS resource set The running time-frequency resource of CSI-RS at least one CSI-RS group；

29. the network equipment as described in claim 27 or 28, which is characterized in that

The transmission unit, is also used to:

And/or

30. a kind of first terminal, which is characterized in that the described method includes:

Determination unit, for determining that the time-frequency of at least two CSI-RS in preconfigured third CSI-RS resource set provides Source, alternatively, determining the time-frequency money of CSI-RS at least one CSI-RS group in preconfigured 4th CSI-RS resource set Source；Wherein, each CSI-RS group includes at least two CSI-RS；

Receiving unit, for using the running time-frequency resource of at least two CSI-RS to receive CSI-RS；Wherein, the CSI-RS is used It is tracked in time-frequency.

31. first terminal as claimed in claim 30, which is characterized in that

The determination unit is in the time-frequency money for determining at least two CSI-RS in preconfigured third CSI-RS resource set It is specifically used for when source: according to net-work parameter information, determines at least two CSI-RS's in the third CSI-RS resource set Running time-frequency resource；

Determination unit CSI- in determining at least one CSI-RS group in preconfigured 4th CSI-RS resource set It is specifically used for when the running time-frequency resource of RS: according to net-work parameter information, determines at least two in the 4th CSI-RS resource set The running time-frequency resource of a CSI-RS；

Wherein, the net-work parameter information includes at least one of following information: the serving cell ID of the terminal and small Mapping relations between area and the running time-frequency resource of CSI-RS, the region ID in region locating for the server cell of the first terminal and Mapping relations between region and the running time-frequency resource of CSI-RS, the configured CSI-RS of CSI-RS resource set gather interior CSI-RS resource Quantity.

32. first terminal as claimed in claim 30, which is characterized in that the terminal further include:

33. such as the described in any item first terminals of claim 30-32, which is characterized in that

And/or