WO2013131401A1

WO2013131401A1 - Channel state information processing method, base station and user equipment

Info

Publication number: WO2013131401A1
Application number: PCT/CN2012/087701
Authority: WO
Inventors: 郭森宝; 孙云锋; 陈艺戬; 戴博
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-03-09
Filing date: 2012-12-27
Publication date: 2013-09-12
Also published as: CN103312434A

Abstract

Disclosed are a Channel State Information (CSI) processing method, a base station and user equipment by the embodiments of the present invention. The method comprises the steps of: a base station configures multiple CSI-RS resource signaling to the user equipment side by UE specific high layer signaling or a public high layer signaling, and transmits the CSI-RS resource signaling to the user equipment; wherein each CSI-RS resource signaling comprises at least one of the follow information: an indication information of the number of the antenna ports, a time domain and frequency domain position information of the CSI-RS resource in a sub-frame, a period and sub-frame offset information of the CSI-RS resource sub-frame, a power information of the CSI-RS resource and a bandwidth information occupied by the CSI-RS resource; the base station generates a CSI-RS on the basis of the multiple CSI-RS resource signaling, and transmits the CSI-RS to the user equipment on the corresponding time domain and frequency domain resource, and receives the CSI or reference signal receiving power feedback from the user equipment.

Description

Method for processing channel state information, base station and terminal

Technical field

The present invention relates to the field of communications, and in particular, to a method for processing channel state information, a base station, and a terminal.

Background technique

The Long Term Evolution (LTE) system has been researching R11 technology accurately after several versions of R8/9/10. At present, some R8 products are gradually commercialized, and R9 and R10 are subject to further product planning.

In the R8 and R9 phases, R10 adds many new features based on the former two, such as Demodulation Reference Signal (DMRS) and Channel State Information Reference Signal (CSI). -RS) and other pilot characteristics, 8 antenna support and other transmission and feedback characteristics, etc., especially the inter-cell interference cancellation enhancement (elCIC) technology based on the R8/9 ICIC, further Consider interference avoidance techniques between cells. The technology for solving the interference problem between cells mainly considers the cell interference avoidance under the isomorphic network in the early stage of the R10 phase, and the mainstream considers the elCIC technology and the Coordinated Multi-point (CoMP) technology. CoMP, as its name implies, is that multiple nodes cooperate to send data to one or more terminals (UEs) at the same time-frequency resource or different time-frequency resources. Such a technique can reduce interference between cells and improve the swallowing of cell edges.

The complexity of CoMP technology and the time limit discussed by R10 finally decided not to introduce additional CoMP standardized content in the R10 phase, but in designing CSI-RS, the requirements of the CoMP part can be considered for R10, and the base station side first uses UE-specific (UE- Specific) High-level signaling configures the UE-set of CSI-RS configuration information (including non-zero-power CSI-RS configuration information and zero-power CSI-RS configuration information). The UE performs CSI measurement on the serving base station by using the non-zero power CSI-RS configured on the base station side. First, the UE side needs to know the number of antenna ports of the CSI-RS, the time domain and frequency domain position of the CSI-RS in one subframe, the period and subframe offset information of the CSI-RS, and the power information of the CSI-RS. In this way, the UE generates a CSI-RS pilot by using a cell ID obtained by initial access and synchronization, and detecting a Physical Broadcast Channel (PBCH), and then demodulating the CSI-RS by using a correlation detection algorithm to obtain a CSI value. Reference may be made to the relevant section of the CSI-RS generation method in Section 6.10.5 of the 3rd Generation Partnership Project (3GPP) LTE 36.211. The cell ID and bandwidth information that the UE needs to utilize to generate the CSI-RS sequence locally is not notified by higher layer signaling.

CoMP transmission methods mainly include Joint Transmission (JT), Coordinated Scheduling (CS)/Coordinated Beamforming (CB). For JT, because different transmission nodes (TPs) jointly transmit data for one UE, the UE needs to feed back CSIs of multiple TPs, so that the base station side can use the CSI fed back by the UE to decide which TPs are used to send to the UE. Data, and determine the precoding weight and Modulation Coding Scheme (MCS) for transmitting data to the UE. For the CS/CB, the UE needs to feed back the weights of multiple TPs, so that the base station side can cooperate better, so that the CSI fed back by the UE is used to determine the cooperative precoding weight and the MCS value of the serving node and the interfering node. And the pairing user's choice of machine precoding and MCS selection. For the DPS, the UE also needs to feedback the weights of the multiple TPs, so that the base station side can dynamically determine the TP of the UE by using the CSIs of multiple TPs fed back by the UE, and determine the TP to send data to the UE. Precoding weights and MCS. If the UE needs to feed back CSIs of multiple TPs, the base station side needs to configure multiple CSI-RS resources for the UE to measure the CSIs of multiple TPs and configure the CSI-RS resources in advance through the high-level signaling of the UE-Specific upper layer. It is necessary to include various information required for the corresponding TP.

Through the analysis of R10, the cell ID and bandwidth information cannot be obtained through high-level signaling, so it needs to be enhanced in the R11 phase, so that the UE can obtain the above two kinds of information. Through the discussion of 68 conferences, it is finally decided that the cell ID also uses the UE-Specific (UE-specific) high-level signaling configuration, but the bandwidth problem has not been discussed, so if you consider the unequal bandwidth, the CoMP and/or reference signal. Receive Signal Receiving Poweer (RSRP), and/or Reference Signal Receiving Quality (RSRQ) and/or Received Signal Strength Indicator (RSI) and/or Radio Link Measurement (Radio) Link Measurement, RLM) measurement, there will be problems.

Summary of the invention The embodiments of the present invention provide a method for processing channel state information, a base station, and a terminal, to solve the problem of CoMP and/or RSRP and/or RSRQ and/or RSSI and/or RLM measurement in the case of unequal bandwidth.

The embodiment of the present invention provides a method for processing channel state information (CSI), which includes: configuring, by a base station, terminal side (UE) dedicated high layer signaling and/or public high layer signaling (PBCH or SIB1 or SIB2) The channel state information reference signal (CSI-RS) resource signaling, and the CSI-RS resource signaling is sent to the terminal; where each CSI-RS resource signaling includes at least one of the following information: And time domain and frequency domain location information of the CSI-RS resource in one subframe, period and subframe offset information of the CSI-RS resource subframe, power information of the CSI-RS resource, and bandwidth information occupied by the CSI-RS resource;

Generating, by the base station, a CSI-RS according to the multiple CSI-RS resource signaling, and sending the CSI-RS to the terminal on a corresponding time domain and frequency domain resource, and receiving the feedback that is sent by the terminal The CSI or reference signal receives power.

Preferably, each of the CSI-RS resources is independently configured in time domain and frequency domain location information in one subframe; or

The period and subframe offset information of each of the CSI-RS resource subframes are independently configured; or a plurality of the CSI-RS resource subframes configure a set of period and subframe offset information; or

Each of the CSI-RS resources independently configures power information; or

The power information is independently configured for different antenna ports of each of the CSI-RS resources; or

The number of the antenna port indication information is 1, 2, 4 or 8; or

The bandwidth information occupied by the CSI-RS resource includes at least one of the following: 1.4M, 3M, 5M, 1 OM, 15M, 20M, N resource blocks (RBs), and N resource block groups (Resource Block Group) , RBG) and N subbands, N is a natural number.

The embodiment of the invention further provides a method for processing channel state information (CSI), the method comprising:

The terminal receives multiple channel state information reference signal (CSI-RS) resource signaling sent by the base station; where each CSI-RS resource signaling includes at least one of the following information: the number of antenna port indication information, and the CSI-RS resource is Time domain and frequency domain location information in one subframe, week of CSI-RS resource subframe Period and subframe offset information, power information of the CSI-RS resource, and bandwidth information occupied by the CSI-RS resource; the terminal uses the multiple CSI-RS resource signaling to measure and receive on the corresponding time domain and frequency domain resources. Receiving CSI or reference signal received power (RSRP and/or RSRQ and/or RSSI and/or RLM measurement) corresponding to multiple CSI-RS resources, and feeding back the CSI or the RSRP and/or RSRQ to the base station And / or RSSI and / or RLM measurements.

Preferably, the terminal uses the multiple CSI-RS resource signaling to measure CSIRSRP and/or RSRQ and/or RSSI and/or corresponding to the received multiple CSI-RS resources on the corresponding time domain and frequency domain resources. Or RLM measurement or RSRP and/or RSRQ and/or RSSI and/or RLM measurement, comprising: the terminal generating a CSI-RS according to the multiple CSI-RS resource signaling, the CSI-RS and the received Performing correlation operations on the plurality of CSI-RS resources to obtain CSIRSRP and/or RSRQ and/or RSSI and/or RLM measurement or RSRP and/or RSRQ and/or RSSI and/or RLM measurement corresponding to multiple CSI-RS resources .

Preferably, each of the CSI-RS resources is independently configured in time domain and frequency domain location information in one subframe; and/or

The period and subframe offset information of each of the CSI-RS resource subframes are independently configured; or the plurality of CSI-RS resource subframes configure a set of period and subframe offset information; and/or each of the CSI- RS resources are independently configured with power information; or

The power information of each antenna port of each of the CSI-RS resources is independently configured; and/or the value of the number of antenna port indications is 1, 2, 4 or 8; and/or

The bandwidth information occupied by the CSI-RS resource includes at least one of the following: 1.4M, 3M, 5M,

10M, 15M and 20M, N RBs, N RBG (Resource Block Group) and N subbands.

An embodiment of the present invention further provides a base station, where the base station includes:

Configuring a sending module, configured to: configure multiple channel state information reference signal (CSI-RS) resource signaling on the terminal side by using terminal (UE) dedicated high layer signaling and/or common high layer signaling (PBCH or SIB1 or SIB2), And transmitting, to the terminal, the CSI-RS resource signaling; where each CSI-RS resource signaling includes at least one of the following information: an antenna port number indication information, a time domain and a frequency of the CSI-RS resource in one subframe. Domain location information, period of CSI-RS resource subframes, and subframe offset information Information, power information of CSI-RS resources and bandwidth information occupied by CSI-RS resources;

a processing module, configured to: generate a CSI-RS according to the multiple CSI-RS resource signaling configured by the sending module, and send the CSI to the terminal on a corresponding time domain and frequency domain resource RS, and receiving the CSI or reference signal received power fed back by the terminal.

Preferably, the time domain and frequency domain location information of each of the CSI-RS resources in one subframe is independently configured; and/or

The period and subframe offset information of each of the CSI-RS resource subframes are independently configured; or a plurality of the CSI-RS resource subframes are configured with a set of period and subframe offset information; and/or each The power information of the CSI-RS resource is independently configured; or

The power information of different antenna ports of each of the CSI-RS resources is independently configured; and/or the number of the antenna port indication information is 1, 2, 4 or 8; and/or

The bandwidth information occupied by the CSI-RS resource includes at least one of the following: 1.4M, 3M, 5M, 10M, 15M, 20M, N RBs, N RBGs (Resource Block Group), and N subbands .

The embodiment of the invention further provides a terminal, the terminal comprising:

And a receiving module, configured to: receive multiple channel state information reference signal (CSI-RS) resource signaling sent by the base station, where each CSI-RS resource signaling includes at least one of the following information: And time domain and frequency domain location information of the CSI-RS resource in one subframe, period and subframe offset information of the CSI-RS resource subframe, power information of the CSI-RS resource, and bandwidth information occupied by the CSI-RS resource;

a processing module, configured to: measure, by using the multiple CSI-RS resource signaling received by the receiving module, CSI or a reference signal corresponding to the received multiple CSI-RS resources on the corresponding time domain and frequency domain resources Receive power (RSRP and / or RSRQ and / or RSSI and / or RLM measurements), and vector.

Preferably, the processing module is configured to: generate a CSI-RS according to the multiple CSI-RS resource signaling, and perform a correlation operation on the CSI-RS and the received multiple CSI-RS resources, Obtaining CSIRSRP and/or RSRQ and/or RSSI and/or RLM measurements corresponding to multiple CSI-RS resources Or RSRP and / or RSRQ and / or RSSI and / or RLM measurements.

The foregoing method for processing channel state information, a base station, and a terminal enable the UE to accurately perform TP selection under multiple TP unequal bandwidth conditions and obtain accurate CSI measurement in CoMP technology. BRIEF abstract

1 is a flowchart of Embodiment 1 of a method for processing channel state information according to the present invention;

2 is a flowchart of Embodiment 2 of a method for processing channel state information according to the present invention;

3 is a schematic structural diagram of an embodiment of a base station according to the present invention;

FIG. 4 is a schematic structural diagram of a terminal embodiment of the present invention. Preferred embodiment of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The embodiment of the present invention provides a method for processing a CSI. The base station side configures multiple CSI-RS resource signalings on the terminal side through UE-Specific high-level signaling, so that the UE can accurately perform TP in multiple TP unequal bandwidths. Choose and get accurate CSI measurements in CoMP technology.

As shown in FIG. 1 , it is a flowchart of Embodiment 1 of a method for processing channel state information according to the present invention. The embodiment is described from the base station side, and the method includes:

Step 101: The base station configures multiple channel state information reference signal (CSI-RS) resource signaling on the terminal side by using terminal (UE) dedicated high layer signaling and/or common high layer signaling, and sends the CSI-RS resource signal to the terminal. Each of the CSI-RS resource signaling includes at least one of the following information: an antenna port number indication information, a time domain and frequency domain location information of a CSI-RS resource in one subframe, and a CSI-RS resource subframe. Period and subframe offset information, power information of CSI-RS resources, and bandwidth information occupied by CSI-RS resources; common high layer signaling may include a physical broadcast channel (PBCH), and a system information block type 1 (System Information Block) Type 1 , SIBl ) or System Information Block Type 2 (SIB2).

Step 102: The base station generates a CSI-RS according to the multiple CSI-RS resource signaling, and sends the CSI-RS to the terminal on a corresponding time domain and frequency domain resource, and receives the terminal feedback. The CSI or reference signal receives power.

As shown in FIG. 2, it is a flowchart of Embodiment 2 of a method for processing channel state information according to the present invention. The embodiment is described from the terminal side, and the method includes:

Step 201: The terminal receives multiple channel state information reference signal (CSI-RS) resource signaling sent by the base station, where each CSI-RS resource signaling includes at least: an antenna port number indication information, and a CSI-RS resource in one Time domain and frequency domain location information in a subframe, period and subframe offset information of a CSI-RS resource subframe, power information of a CSI-RS resource, and bandwidth information occupied by a CSI-RS resource;

Step 202: The terminal uses the multiple CSI-RS resource signaling to measure CSI and/or RSRP and/or RSRQ and/or corresponding to the received multiple CSI-RS resources on the corresponding time domain and frequency domain resources. Or RSSI and/or RLM, and feed back the CSI or the and/or RSRP and/or RSRQ and/or RSSI and/or RLM to the base station.

The following describes the embodiments of the present invention from the perspective of interaction between the base station side and the terminal side: Embodiment 1

Assume that UE1 is a user of R11, and the base station side configures multiple CSI-RS resource signalings on the terminal side through UE-Specific high-level signaling, where each CSI-RS resource signaling includes: antenna port number indication information, CSI-RS resources Time domain and frequency domain location information in one subframe, period and subframe offset information of CSI-RS resource subframes, power information of CSI-RS resources, and bandwidth occupied by CSI-RS resources Information. And the base station side performs CSI-RS generation and transmission according to the information indicated in the foregoing CSI-RS resource signaling, and is used for the UE side to measure and feed back CSI of each configured CSI-RS resource. The UE side receives multiple CSI-RS resource signalings configured by the base station, and performs CSI-RS generation according to the obtained CSI-RS resource signaling, and then performs correlation operations with the received CSI-RS resources to obtain different CSI-RSs. The CSI and/or RSRP and/or RSRQ and/or RSSI and/or RLM of the resource are fed back to the base station. The value of the antenna port number indication information may be 1, 2, 4 or 8. The bandwidth information occupied by the CSI-RS may include 1.4M, 3M, 5M, 10M, 15M, 20M, N RBs, N RBGs, and N sub-bands.

Embodiment 2

Assume that UE1 is a user of R11, and the base station side configures multiple CSI-RS resource signalings on the terminal side through UE-Specific high-level signaling, where each CSI-RS resource signaling includes: antenna port number indication information, CSI-RS resources Time domain and frequency domain location information in one subframe, power information of CSI-RS resources and bandwidth information occupied by CSI-RS resources; base station side additionally configures a set of CSI-RS resources for multiple CSI-RS resources The period of the frame and the subframe offset signaling, the multiple sets of CSI-RS resources use the same set of period and subframe offset signaling. And the base station side performs CSI-RS generation and transmission according to the information indicated in the signaling, and is used by the UE side to measure and feed back CSI of each configured CSI-RS resource. The UE side receives multiple CSI-RS resource signalings configured by the base station, and performs CSI-RS generation according to the obtained CSI-RS resource signaling, and then performs correlation operations with the received CSI-RS resources to obtain different CSI-RSs. The CSI and/or RSRP and/or RSRQ and/or RSSI and/or RLM of the resource are fed back to the base station. The value of the antenna port number indication information may be 1, 2, 4 or 8. The bandwidth information occupied by the CSI-RS may include 1.4M, 3M, 5M, 10M, 15M, 20M, N RBs, N RBGs, and N subbands.

Embodiment 3

Assume that UE1 is a user of R11, and the base station side configures multiple CSI-RS resource signalings on the terminal side through UE-Specific high-level signaling, where each CSI-RS resource signaling includes: antenna port number indication information, CSI-RS resources Time domain and frequency domain location information in one subframe, period and subframe offset information of CSI-RS resource subframes, bandwidth information of CSI-RS resources, and CSI-RS resources The power information of the antenna port is independently configured. And the base station side performs CSI-RS generation and transmission according to the information indicated in the foregoing CSI-RS resource signaling, and is used for measuring and feeding back CSI of each configured CSI-RS resource by the UE side. The UE side receives multiple CSI-RS resource signalings configured by the base station, and performs CSI-RS generation according to the obtained CSI-RS resource signaling, and then performs correlation operations with the received CSI-RS resources to obtain different CSI-RSs. The CSI of the resource, and feedback to the base station. The value of the antenna port number indication information may be 1, 2, 4 or 8. The bandwidth information occupied by the CSI-RS may include 1.4M, 3M, 5M, 10M, 15M, 20M, N RBs, N RBGs, and N sub-bands.

Embodiment 4

Assume that UE1 is a user of R11, and the base station side configures multiple CSI-RS resource signalings on the terminal side through UE-Specific high-level signaling, where each CSI-RS resource signaling includes: antenna port number indication information, CSI-RS resources Time domain and frequency domain location information in one subframe, power information independently configured by different antenna ports of CSI-RS resources, and bandwidth information occupied by CSI-RS resources. The base station side further configures a set of CSI-RS resource subframe periodicity and subframe offset signaling for multiple CSI-RS resources, and multiple CSI-RS resources use the same set of period and subframe offset signaling. And the base station side performs CSI-RS generation and transmission according to the information indicated in the foregoing CSI-RS resource signaling, and is used for the UE side to measure and feed back CSI of each configured CSI-RS resource. The UE side receives multiple CSI-RS resource signalings configured by the base station, and performs CSI-RS generation according to the obtained CSI-RS resource signaling, and then performs correlation operations with the received CSI-RS resources to obtain different CSI-RSs. The CSI and/or RSRP and/or RSRQ and/or RSSI and/or RLM of the resource are fed back to the base station. The value of the antenna port number indication information may be 1, 2, 4 or 8. The bandwidth information occupied by the CSI-RS may include 1.4M, 3M, 5M, 10M, 15M, 20M, N RBs, N RBGs, and N subbands.

It can be seen from the above embodiment that using the above method, the UE can be made to accurately perform TP selection with multiple TP unequal bandwidths and obtain accurate CSI measurements in CoMP technology.

As shown in FIG. 3, it is a schematic structural diagram of an embodiment of a base station according to the present invention. The base station includes a configuration sending module 31 and a processing module 32, where: The configuration sending module 31 is configured to: configure terminal side multiple channel state information reference signal (CSI-RS) resource signaling by using terminal (UE) dedicated high layer signaling and/or common high layer signaling (PBCH or SIB1 or SIB2), And transmitting, to the terminal, the CSI-RS resource signaling; where each CSI-RS resource signaling includes at least one of the following information: an antenna port number indication information, a time domain and a frequency of the CSI-RS resource in one subframe. Domain location information, period and subframe offset information of CSI-RS resource subframes, power information of CSI-RS resources, and bandwidth information occupied by CSI-RS resources;

The processing module 32 is configured to: generate a CSI-RS according to the multiple CSI-RS resource signaling configured by the sending module, and send the CSI to the terminal on a corresponding time domain and frequency domain resource. RS, and receiving the CSI or reference signal received power fed back by the terminal.

The time domain and frequency domain location information of each of the CSI-RS resources in one subframe may be independently configured; the period and subframe offset information of each of the CSI-RS resource subframes may be independently configured. The plurality of CSI-RS resource subframes may be configured with a set of period and subframe offset information; the power information of each of the CSI-RS resources may be independently configured; or, each of the CSI- The power information of different antenna ports of the RS resource can be independently configured.

Preferably, the value of the number of antenna port indication information may be 1, 2, 4 or 8;

The bandwidth information occupied by the CSI-RS resources may include 1.4M, 3M, 5M, 10M, 15M, 20M, N RBs, N RBGs, and N sub-bands.

The foregoing base station sends the configured CSI-RS resource signaling to the terminal through the UE-specific high-layer signaling, which lays a foundation for the UE to accurately perform TP selection in multiple TP unequal bandwidth conditions and obtain accurate CSI measurement in CoMP technology. .

As shown in FIG. 4, it is a schematic structural diagram of a terminal embodiment of the present invention. The terminal includes a receiving module 41 and a processing module 42, wherein:

The receiving module 41 is configured to receive multiple channel state information reference signal (CSI-RS) resource signaling sent by the base station, where each CSI-RS resource signaling includes at least: antenna port number indication information, CSI-RS resources Time domain and frequency domain location information in one subframe, period and subframe offset information of a CSI-RS resource subframe, power information of a CSI-RS resource, and bandwidth information occupied by a CSI-RS resource;

The processing module 42 is configured to use the multiple CSI-RS resource messages received by the receiving module Having measured CSIRSRP and/or RSRQ and/or RSSI and/or RLM measurements or RSRP and/or RSRQ and/or RSSI and/or RSSI corresponding to the received plurality of CSI-RS resources on respective time and frequency domain resources. The RLM measures and feeds back the CSI or the RSRP and/or RSRQ and/or RSSI and/or RLM measurements to the base station.

The processing module 42 is configured to generate according to the multiple CSI-RS resource signaling

The CSI-RS performs a correlation operation on the CSI-RS and the received plurality of the CSI-RS resources, and the time domain and the frequency domain of each of the CSI-RS resources in one subframe are obtained. The location information may be independently configured; the period and subframe offset information of each of the CSI-RS resource subframes may be independently configured; and the plurality of the CSI-RS resource subframes may be configured with a set of periods and subframes. Offset information; power information of each of the CSI-RS resources may be independently configured; or, power information of different antenna ports of each of the CSI-RS resources may be independently configured.

Preferably, the value of the number of the antenna port indication information may be 1, 2, 4 or 8; the bandwidth information occupied by the CSI-RS resource may include 1.4M, 3M, 5M, 10M, 15M, 20M, N RB, N RBGs, and N subbands.

The UE receives the CSI-RS resource signaling sent by the base station side, and obtains the CSI corresponding to the received multiple CSI-RS resources by using the CSI-RS resource signaling, so that the UE has multiple TPs with different bandwidths. TP selection can be performed accurately and accurate CSI measurements can be obtained in CoMP technology.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be accomplished by a program that instructs the associated hardware to be stored in a computer readable storage medium, such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.

The above embodiments are only intended to illustrate the technical solutions of the present invention and are not to be construed as limiting the invention. Those of ordinary skill in the art will appreciate that the present invention can be used The modifications and equivalents of the technical solutions of the present invention are intended to be included within the scope of the appended claims.

Industrial applicability

The foregoing method for processing channel state information, a base station, and a terminal enable the UE to accurately perform TP selection under multiple TP unequal bandwidth conditions and obtain accurate CSI measurement in CoMP technology.

Claims

Claim

1. A method for processing channel state information (CSI), the method comprising:

The base station configures terminal side multiple channel state information reference signal (CSI-RS) resource signaling by using terminal (UE) dedicated high layer signaling and/or common high layer signaling, and sends the CSI-RS resource signaling to the terminal; Each CSI-RS resource signaling includes at least one of the following information: antenna port number indication information, time domain and frequency domain location information of a CSI-RS resource in one subframe, a period and a subframe of a CSI-RS resource subframe The offset information, the power information of the CSI-RS resource, and the bandwidth information occupied by the CSI-RS resource; the base station generates a CSI-RS according to the multiple CSI-RS resource signaling, and the corresponding time domain and frequency domain resources Transmitting the CSI-RS to the terminal, and receiving the CSI or reference signal received power fed back by the terminal.

2. The method of claim 1 wherein:

Each of the CSI-RS resources is independently configured in time domain and frequency domain location information in one subframe; and

/ or

The period and subframe offset information of each of the CSI-RS resource subframes are independently configured, or a plurality of the CSI-RS resource subframes configure a set of period and subframe offset information; and/or each of the CSI- The RS resources independently configure power information, or the power information of each antenna port of each of the CSI-RS resources is independently configured; and/or

The number of the antenna port indication information is 1, 2, 4 or 8; and/or

The bandwidth information occupied by the CSI-RS resource includes at least one of the following: 1.4M, 3M, 5M, 10M, 15M, 20M, N resource blocks (RB), N resource block groups (RBGs), N subbands,

N is a natural number.

3. The method according to claim 1 or 2, wherein

The public high layer signaling includes a physical broadcast channel, a system information block type 1 or a system information block type 2.

4. A method for processing channel state information (CSI), the method comprising:

The terminal receives multiple channel state information reference signal (CSI-RS) resource signaling sent by the base station, where each CSI-RS resource signaling includes at least: antenna port number indication information, CSI-RS Time domain and frequency domain location information of a resource in one subframe, period and subframe offset information of a CSI-RS resource subframe, power information of a CSI-RS resource, and bandwidth information occupied by a CSI-RS resource;

The terminal uses the multiple CSI-RS resource signaling to measure CSI and/or reference signal received power (RSRP) and/or reference signal received power (RSRP) corresponding to the received multiple CSI-RS resources on the corresponding time domain and frequency domain resources. Reference signal received quality (RSRQ) and/or reference signal strength indication and/or radio link measurement (RLM) and fed back the CSI and/or the RSRP and/or RSRQ and/or RSSI and/or to the base station Or RLM.

5. The method of claim 4, wherein:

The terminal uses the multiple CSI-RS resource signaling to measure CSI and/or RSRP and/or RSRQ and/or RSSI corresponding to the received multiple CSI-RS resources on the corresponding time domain and frequency domain resources. / or RLM, including:

The terminal generates a CSI-RS according to the multiple CSI-RS resource signaling, performs a correlation operation on the CSI-RS and the received multiple CSI-RS resources, and obtains multiple CSI-RS resources. CSI and / or RSRP and / or RSRQ and / or RSSI and / or RLM.

6. A method according to claim 4 or 5, wherein:

/ or

The period and subframe offset information of each of the CSI-RS resource subframes are independently configured, or a plurality of the CSI-RS resource subframes are configured with a set of period and subframe offset information; and/or

Each of the CSI-RS resources independently configures power information, or independently configures power information for different antenna ports of each of the CSI-RS resources; and/or

The number of the antenna port indication information is 1, 2, 4 or 8; and/or

The bandwidth information occupied by the CSI-RS resource includes at least one of the following: 1.4M, 3M, 5M, 10M, 15M, 20M, N resource blocks (RB), N resource block groups (RBGs), N sub-bands, N is a natural number.

7. A base station, the base station comprising:

Configuring a sending module, configured to: configure terminal side multiple channel state information reference signal (CSI-RS) resource signaling by using terminal (UE) dedicated high layer signaling and/or public high layer signaling, and to the terminal Transmitting the CSI-RS resource signaling; where each CSI-RS resource signaling includes at least one of the following information: an antenna port number indication information, a time domain and a frequency domain location information of a CSI-RS resource in one subframe And CSI-RS resource subframe period and subframe offset information, CSI-RS resource power information, and CSI-RS resource occupied bandwidth information;

a processing module, configured to: generate a CSI-RS according to the multiple CSI-RS resource signaling configured by the sending module, and send the CSI to the terminal on a corresponding time domain and frequency domain resource And receiving, by the terminal, the CSI and/or reference signal received power (RSRP) and/or reference signal received quality (RSRQ) and/or reference signal strength indication and/or radio link measurement (RMM).

8. The base station according to claim 7, wherein:

The time domain and frequency domain location information of each of the CSI-RS resources in one subframe is independently configured; and/or

The period and subframe offset information of each of the CSI-RS resource subframes are independently configured, or a plurality of the CSI-RS resource subframes configure a set of period and subframe offset information; and/or

The power information of each of the CSI-RS resources is independently configured, or the power information of each antenna port of each of the CSI-RS resources is independently configured; and/or

The number of the antenna port indication information is 1, 2, 4 or 8; and/or

The base station according to claim 7 or 8, wherein

10. A terminal, the terminal comprising:

a receiving module, configured to: receive multiple channel state information reference signals sent by the base station

(CSI-RS) resource signaling; where each CSI-RS resource signaling includes at least: antenna port number indication information, time domain and frequency domain location information of CSI-RS resources in one subframe, CSI-RS Period and subframe offset information of resource subframes, power information of CSI-RS resources, and CSI-RS resources Wide information

a processing module, configured to: measure CSI and/or corresponding to the received multiple CSI-RS resources on the corresponding time domain and frequency domain resources by using the multiple CSI-RS resource signaling received by the receiving module Reference signal received power (RSRP) and/or reference signal received quality (RSRQ) and/or reference signal strength indication and/or radio link measurement (RLM), and fed back to the base station the CSI and/or the RSRP And / or RSRQ and / or RSSI and / or RLM.

11. The terminal of claim 10, wherein:

The processing module is configured to generate a CSI-RS according to the multiple CSI-RS resource signaling, perform correlation operations on the CSI-RS and the received multiple CSI-RS resources, and obtain multiple

12. The terminal of claim 11 wherein:

The number of the antenna port indication information is 1, 2, 4 or 8; and/or

N is a natural number.