CN116471626A

CN116471626A - Channel state information acquisition method and device, terminal and network side equipment

Info

Publication number: CN116471626A
Application number: CN202211013706.2A
Authority: CN
Inventors: 袁江伟; 宋扬
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-01-11
Filing date: 2022-08-23
Publication date: 2023-07-21

Abstract

The application discloses a method, a device, a terminal and network side equipment for obtaining channel state information, which belong to the field of mobile communication, and the method for obtaining the channel state information in the embodiment of the application comprises the following steps: the terminal acquires the channel state information according to the channel state information report setting; wherein the channel state information report is configured for cooperative transmission; and the terminal feeds back a channel state information report to the network side equipment according to the acquired channel state information.

Description

Channel state information acquisition method and device, terminal and network side equipment

Technical Field

The application belongs to the technical field of mobile communication, and particularly relates to a method and a device for acquiring channel state information, a terminal and network side equipment.

Background

Coordinated transmission, also referred to as coordinated multi-point transmission (Coordinated Multiple Points, coMP), refers to a plurality of transmission points that are geographically shared, and participate in data transmission of one terminal cooperatively or receive data sent by one terminal jointly. The CoMP technique includes joint transmission (Joint Transmission, JT), i.e. the terminal is served simultaneously by multiple transmission points. When a terminal acquires channel state information (Channel State Information, CSI) using one channel state information reference signal (Channel State Information Reference Signal, CSI-RS), ports (ports) of the one CSI-RS may be from multiple transmission and reception points (Transmission and Reception Point, TRP) or multiple antenna panels (panels).

The problem of how to realize CSI acquisition and reporting of joint transmission is needed to be solved at present.

Disclosure of Invention

The embodiment of the application provides a channel state information acquisition method, a device, a terminal and network side equipment, which can solve the problem of how to realize the CSI acquisition and reporting of joint transmission.

In a first aspect, a method for obtaining channel state information is provided, and the method is applied to a terminal, and includes:

the terminal acquires the channel state information according to the channel state information report setting; wherein the channel state information report is configured for cooperative transmission;

and the terminal feeds back a channel state information report to the network side equipment according to the acquired channel state information.

In a second aspect, there is provided a channel state information acquisition apparatus including:

the measurement module is used for acquiring the channel state information according to the channel state information report setting; wherein the channel state information report is configured for cooperative transmission;

and the reporting module is used for feeding back a channel state information report to the network side equipment according to the acquired channel state information.

In a third aspect, a method for obtaining channel state information is provided, and the method is applied to a network side device, and includes:

The network side equipment sends configuration information for configuring channel state information report setting to the terminal; wherein the channel state information report is configured for cooperative transmission;

the network side equipment receives a channel state information report from the terminal.

In a fourth aspect, there is provided a channel state information acquisition apparatus including:

a configuration module, configured to send configuration information for configuring channel state information report settings to a terminal; wherein the channel state information report is configured for cooperative transmission;

and the receiving module is used for receiving the channel state information report from the terminal.

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

A sixth aspect provides a terminal, including a processor and a communication interface, where the processor is configured to perform channel state information acquisition according to a channel state information report setting; the communication interface is used for feeding back the channel state information report to the network side equipment according to the acquired channel state information.

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the third aspect.

An eighth aspect provides a network side device, including a processor and a communication interface, where the processor is configured to determine configuration information for configuring channel state information report settings, and the communication interface is configured to send configuration information for configuring channel state information report settings to a terminal; a channel state information report is received from the terminal.

A ninth aspect provides a channel state information acquisition system, including: a terminal and a network side device, the terminal being operable to perform the steps of the channel state information acquisition method according to the first aspect, the network side device being operable to perform the steps of the channel state information acquisition method according to the third aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the third aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the channel state information acquisition method according to the first aspect or to implement the steps of the channel state information acquisition method according to the third aspect.

In the embodiment of the application, channel state information acquisition is performed through channel state information report setting for cooperative transmission; and feeding back a channel state information report according to the acquired channel state information, so that the acquisition and reporting of the CSI of the joint transmission are realized, the terminal can accurately acquire the CSI, and further, the network side equipment can rapidly perform channel estimation or precoding matrix calculation.

Drawings

Fig. 1 is a schematic structural diagram of a wireless communication system to which embodiments of the present application are applicable;

Fig. 2 is a flow chart of a method for obtaining channel state information according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a channel state information obtaining device according to an embodiment of the present application;

fig. 4 is a flowchart of another method for obtaining channel state information according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of another channel state information obtaining apparatus according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal implementing an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network side device for implementing an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier FrequencyDivision Multiple Access, SC-FDMA), and other wireless communication systemsOther systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a new air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmitting/receiving point (TransmittingReceivingPoint, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiments of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: a core network node, a core network function, a mobility management entity (Mobility Management Entity, MME), an access mobility management function (Access and Mobility Management Function, AMF), a session management function (Session Management Function, SMF), a user plane function (User Plane Function, UPF), a policy control function (Policy Control Function, PCF), a policy and charging rules function (Policy and Charging Rules Function, PCRF), an edge application service discovery function (EdgeApplicationServerDiscoveryFunction, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), a home subscriber server (Home Subscriber Server, HSS), a centralized network configuration (Centralized network configuration, CNC), a network storage function (Network Repository Function, NRF), a network opening function (NetworkExposureFunction, NEF), a local NEF (LocalNEF, or L-NEF), a binding support function (Binding Support Function, BSF), an application function (Application Function, AF), and the like. In the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

The channel state information acquisition method provided by the embodiment of the application is described in detail below by means of some embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 2, the embodiment of the present application provides a channel state information acquisition method, where the execution body of the method is a terminal, in other words, the method may be executed by software or hardware installed in the terminal. The method comprises the following steps.

Step 210, the terminal acquires the CSI according to the CSI report setting (Reporting Setting); wherein the channel state information report is configured for cooperative transmission.

It should be appreciated that the CSI reporting settings may be configured by the network side device through higher layer signaling, e.g. radio resource control (Radio Resource Control, RRC) signaling, or activated through medium access control unit (Medium Access Control ControlElement, MACCE) signaling, or triggered through downlink control information (DownlinkControlInformation, DCI).

In one embodiment, the CSI report settings may indicate N channel measurement resources (Channel Measurement Resource, CMR) for measuring CSI for a cooperative transmission, where N is a positive integer.

The N channel measurement resources may be determined in a variety of manners, and in one embodiment, the N channel measurement resources may be determined by one channel measurement resource set, where the channel measurement resource set includes the N channel measurement resources; for example, the network side configures a dedicated CMR set and indicates that all CMRs in the dedicated CMR set are used to measure CSI for cooperative transmission.

In another embodiment, the determination may be made by first indication information indicating N channel measurement resources for measuring channel state information of the cooperative transmission. The first indication information may be RRC signaling or MACCE signaling. For example, the network side configures first indication information in a CMR set or resource setting, and the CMR for measuring the CSI of the cooperative transmission in the CMR set is indicated by the first indication information.

It should be appreciated that the N CMRs are configured in at least one consecutive slot (slot), i.e. the N CMRs should be configured in one slot or in a plurality of consecutive slots. If the N CMRs are configured in the discontinuous slots, the terminal does not perform CSI feedback or update, or only feeds back CSI corresponding to all CMRs in one or more continuous slots where the first CMR is located.

In another embodiment, the CSI reporting setup may further include interference measurement resources (Interference Measurement Resource, IMR) for measuring channel state information of interference.

The IMR may be determined in various manners, and in an embodiment, the IMR may be determined by a correspondence between the N CMRs and the IMR, where the correspondence is a default association relationship, and an IMR corresponding to the N CMRs for measuring CSI of the cooperative transmission is defaulted. For example, the CSI of the cooperative transmission is measured once, and the first or last IMR resource in the default IMR set corresponds to a plurality of CMRs measuring the CSI of the cooperative transmission.

In another embodiment, the second indication information is determined by second indication information, where the second indication information is used to indicate the IMR, and the second indication information may be RRC signaling or MACCE signaling.

The CSI acquired by the terminal according to the CSI report setting includes measurement results obtained according to the N channel measurement resources and the corresponding interference measurement resources, where the measurement results may include: precoding matrix Indicator (Precoding matrix Indicator, PMI), rank Indicator (RI), layer Indicator (LI), channel state information reference signal resource Indicator (CSI-RS Resource Indicator, CRI), channel quality Indicator (Channel quality Indicator, CQI), and the like.

Step 220, the terminal feeds back a channel state information report to the network side equipment according to the acquired channel state information.

And the terminal feeds back the acquired CSI to the network side equipment through the CSI report, so that the network side equipment carries out channel estimation or precoding matrix calculation according to the CSI.

For example, the CSI report setting configured by the network side for the terminal includes a CMR set for measuring CSI of the cooperative transmission and an IMR set, where the CMR set includes 4 CMRs: CMR1, CMR2, CMR3 and CMR4, one IMR in the set of IMRs: IMR1.

The terminal obtains a first PMI (with a value of W1) according to CMR1, a first RI (with a value of 2) and a first CQI, wherein the first CQI comprises two values C1 and C2, C1 corresponds to a first layer, and C2 corresponds to a second layer;

the terminal obtains a second PMI (with a value of W2), a second RI (with a value of 2) and a second CQI according to CMR2, wherein the second CQI comprises two values C3 and C4, C3 corresponds to a first layer, and C3 corresponds to a second layer;

the terminal obtains a third PMI (with a value of W3), a third RI (with a value of 2) and a third CQI according to CMR3, wherein the third CQI comprises two values C5 and C6, C5 corresponds to a first layer, and C6 corresponds to a second layer;

the terminal obtains a fourth PMI (with a value of W4) according to CMR4, a fourth RI (with a value of 2) and a fourth CQI, wherein the fourth CQI comprises two values C7 and C8, C7 corresponds to a first layer, and C8 corresponds to a second layer;

the terminal feeds back all PMI, RI and CQI obtained to the network side equipment, and the network side equipment utilizes the PMI and the CQI to construct a downlink transmission channel through the following formula:

H _new ＝[C ₁ W ₁ C ₂ W ₂ C ₃ W ₂ C ₄ W ₄ ]

wherein, C1 is a diagonal matrix, and the diagonal matrix element is CQI corresponding to W1.

Network side equipment is based on H _new Singular value decomposition (Singular Value Decomposition, SVD) to obtain H _new ＝UDV ^H And taking some column vectors of V to form a precoding matrix for cooperative transmission.

As can be seen from the above technical solutions of the embodiments of the present application, the embodiments of the present application perform channel state information acquisition through channel state information report setting for cooperative transmission; and feeding back a channel state information report according to the acquired channel state information, so that the acquisition and reporting of the CSI of the joint transmission are realized, the terminal can accurately acquire the CSI, and further, the network side equipment can rapidly perform channel estimation or precoding matrix calculation.

In the embodiment of the present application, the meaning of joint transmission and cooperative transmission is the same. Embodiments of the present application may enable CSI acquisition and reporting for related joint transmission (Coherence JointTransmission, CJT).

Based on the above embodiment, optionally, the step 210 includes:

obtaining at least one of the following measurement results according to the N CMRs:

m1 PMIs;

m2 RIs;

m3 LI;

m4 CRI;

m5 CQIs;

the m1 precoding matrices indicate phase differences among them, and the number of the phase differences is related to the corresponding RI value, which may be m1-1.

It should be appreciated that M CMRs may be selected from the N CMRs for measuring the cooperative transmission when measuring the measurement results of the cooperative transmission based on the N CMRs.

The value of M may be varied, and in an embodiment, M may be configured or indicated by a network side device, where M is less than or equal to N.

In another embodiment, the M may be specified by the terminal, and the M is carried in a CSI report fed back to the network side device, that is, the value of the M specified by the terminal is indicated to the network side device.

In another embodiment, in a case where the network side device is not configured or indicated, and the terminal is not specified, the m=n.

For simplicity, the m=n is exemplified in the following examples.

Optionally, the m1 PMIs include:

the m1=m, and each PMI corresponds to one CMR.

It should be understood that the terminal may not consider interference between M CMRs corresponding to M PMIs when measuring PMIs.

Optionally, the m2 RIs include at least one of:

the m2=m, and each RI corresponds to one CMR;

the m2=1 and each CMR employs the same RI.

Optionally, the m3 LI includes at least one of:

the m3=m, and each LI corresponds to one CMR;

the m3=1, and the LI indicates the strongest layer of the m1 PMIs.

Optionally, the m4 CRIs comprise at least one of:

the m4=m, and each CRI corresponds to one CMR;

the m4=1, and each CMR for acquiring the cooperative transmission CSI adopts the same CRI.

If m4=0, it means that all CMRs are used to measure CSI for cooperative transmission.

Optionally, the m5 CQIs include at least one of:

m5=m, and each CQI corresponds to one CMR;

m5= Σm6, and each CQI set corresponds to one CMR, where the CQI set includes m6 CQIs, each CQI corresponds to one layer, and m6 is a value indicated by RI corresponding to each CMR;

wherein m6 is a positive integer.

In one embodiment Shi Zhong, where m3=m and each LI corresponds to one CMR, the value of the M6 CQI indications in each CQI set is related to the value of the CQI indication corresponding to the first layer; wherein the first layer is a layer indicated by LI corresponding to the CMR corresponding to the CQI set.

Optionally, in the CQI set, the values of the CQI indications other than the values of the CQI indications corresponding to the first layer are differences between the values of the CQI indications corresponding to the first layer.

In another embodiment, in the case that m3=1 and the second layer indicated by LI is the strongest layer of the m1 PMIs, the value of m6 CQI indications in each CQI set is related to the value of CQI indication corresponding to the second layer.

Optionally, in the CQI set, the values of the CQI indications other than the values of the CQI indications corresponding to the second layer are differences between the values of the CQI indications corresponding to the second layer.

It should be understood that the types and the acquisition manners of the measurement results included in the CSI acquired by the terminal may be determined according to the CIS report setting, and any combination of the foregoing may be used, and the embodiments of the present application are only given as examples of the following several embodiments.

In one embodiment, CSI acquired by a terminal according to N CMRs includes at least one of: m PMIs, M RIs, M LIs, M CRIs, M CQIs, and M-1 phase differences between the M PMIs, wherein each PMI corresponds to one CMR, each RI corresponds to one CMR, each LI corresponds to one CMR, each CRI corresponds to one CMR, and each CQI corresponds to one CMR.

For example, the network side device configures a CMR set for measuring CSI of cooperative transmission, where the CMR set includes 3 CMRs, i.e., n=m=3, and the CSI acquired by the terminal according to the 3 CMRs may include:

the terminal acquires a first PMI, a first RI and a first CQI according to a first CMR;

the terminal acquires a second PMI, a second RI and a second CQI according to a second CMR;

and the terminal acquires a third PMI, a third RI and a third CQI according to the third CMR.

In another embodiment, CSI acquired by the terminal according to the N CMRs includes at least one of: m PMIs, M RIs, M LI, M CRIs, M5 CQIs, and phase differences between the M PMIs; wherein, each PMI corresponds to one CMR, each RI corresponds to one CMR, each LI corresponds to one CMR, each CRI corresponds to one CMR, each CQI corresponds to one layer, m5= Σm6, and m6 is the value of RI corresponding to the CMR corresponding to each CQI.

For example, the network side device configures a CMR set for measuring collaborative CSI, where the CMR set includes 3 CMRs, i.e., n=m=3, and the CSI acquired by the terminal according to the 3 CMRs may include:

the terminal may obtain a first PMI, a first RI (with a value of 2), and a first CQI according to a first CMR, where the first CQI includes two values C1 and C2: c1 corresponds to the first layer and C2 corresponds to the second layer;

the terminal may obtain a second PMI, a second RI (with a value of 2), and a second CQI according to the second CMR, where the second CQI includes two values C3 and C4: c3 corresponds to the first layer and C4 corresponds to the second layer;

the terminal may obtain a third PMI, a third RI (with a value of 3), and a third CQI according to a third CMR, where the third CQI includes three values of C5, C6, and C7: c5 corresponds to the first layer, C6 corresponds to the second layer, and C7 corresponds to the third layer.

For another example, the network side device configures a CMR set for measuring collaborative CSI, where the CMR set includes 3 CMRs, i.e., n=m=3, and the CSI acquired by the terminal according to the 3 CMRs may include:

the terminal may obtain a first PMI, a first RI (with a value of 2), and a first LI (indicating a second layer) first CQI according to the first CMR, where the first CQI includes two values C1 and C2: c1 corresponds to the second layer, and C2 corresponds to the difference of the first layer relative to the second layer;

The terminal may obtain a second PMI, a second RI (with a value of 2), a second LI (indicating the first layer), and a second CQI according to the second CMR, where the second CQI includes C3 and C4: c3 corresponds to the first layer and C4 corresponds to the difference of the second layer relative to the first layer;

the terminal may obtain a third PMI, a third RI (with a value of 3), a third LI (indicating a third layer), and a third CQI according to a third CMR, where the third CQI includes C5, C6, and C7: c5 corresponds to the third layer, C6 corresponds to the difference of the first layer relative to the third layer, and C7 corresponds to the difference of the second layer relative to the third layer.

In another embodiment, CSI acquired by the terminal according to the N CMRs includes at least one of: phase differences among the M PMIs, the M RIs, the 1 LI, the M CRIs, the M5 CQIs, and the M PMIs; wherein, each PMI corresponds to one CMR, each RI corresponds to one CMR, each CRI corresponds to one CMR, the LI indicates the strongest layer of all PMIs, each CQI corresponds to one layer, m5= Σm6, and m6 is the value of RI corresponding to the CMR corresponding to each CQI.

The terminal obtains a second layer indicated by LI as a second layer of the first PMI according to the CMR;

the terminal may obtain a first PMI and a first RI (with a value of 2) according to a first CMR, where the first CQI includes two values C1 and C2: c1 corresponds to the second layer, and C2 corresponds to the difference of the first layer relative to the second layer;

the terminal may acquire a second PMI, a second RI (with a value of 2), a second LI (indicating the first layer), and a second CQI according to the second CQM, the second CQI including two values C3 and C4: c3 corresponds to the difference of the first layer relative to the second layer of the first PMI and C4 corresponds to the difference of the second layer relative to the second layer of the first PMI;

the terminal may obtain a third PMI, a third RI (with a value of 3), and a third CQI according to a third CMR, where the third CQI includes three values of C5, C6, and C7: c5 corresponds to the difference of the first layer with respect to the second layer of the first PMI, C6 corresponds to the difference of the second layer with respect to the second layer of the first PMI, and C7 corresponds to the difference of the third layer with respect to the second layer of the first PMI.

In another embodiment, the CSI acquired by the terminal according to the N CMRs includes at least one of: m PMIs, 1 RI, 1 LI, 1 CRI, M CQIs, and M-1 phase differences between the M PMIs; wherein, each PMI corresponds to a CMR, each CQI corresponds to a CMR, all CMRs adopt the same RI, all CMRs adopt the same CRI, namely, the CRI participates in measuring all CMRs of the CSI of the cooperative transmission, and the LI indicates the strongest layer of all PMIs.

In another embodiment, the CSI acquired by the terminal according to the N CMRs includes at least one of: m PMIs, 1 RI, 1 LI, 1 CRI, M5 CQIs, and M-1 phase differences between the M PMIs; wherein, each PMI corresponds to one CMR, all CMRs adopt the same RI, all CMRs adopt the same CRI, that is, the CRI participates in measuring all CMRs of CSI of cooperative transmission, the LI indicates the strongest layer of all PMIs, each CQI corresponds to one layer, m5= Σm6, and m6 is the value of the RI.

In another embodiment, the CSI acquired by the terminal according to the N CMRs includes at least one of: m PMIs, 1 RI, 1 LI, M CRI, M CQI, and M-1 phase difference between M PMIs; wherein, each PMI corresponds to one CMR, each CRI corresponds to one CMR, each CQI corresponds to one CMR, all CMRs adopt the same RI, and the LI indicates the strongest layer of all PMIs.

In another embodiment, the CSI acquired by the terminal according to the N CMRs includes at least one of: m PMIs, 1 RI, 1 LI, M CRI, M5 CQI, and M-1 phase difference between M PMIs; wherein, each PMI corresponds to one CMR, each CRI corresponds to one CMR, all CMRs adopt the same RI, the LI indicates the strongest layer of all PMIs, each CQI corresponds to one layer, m5= Σm6, and m6 is the value of the RI.

As can be seen from the technical solutions of the embodiments of the present application, in the embodiments of the present application, the acquiring manner of each measurement result when the terminal acquires CSI is determined through CSI report setting, so that CSI acquisition of coherent joint transmission is achieved, and the terminal can accurately acquire CSI.

Based on the above embodiment, optionally, the step 220 includes:

mapping the CSI report to corresponding uplink control information (Uplink Control Information, UCI) for feedback; wherein the CSI report includes at least one of:

m1 PMIs;

m2 RIs;

m3 LI;

m4 CRI;

m5 CQIs;

wherein m1, m2, m3, m4 and m5 are positive integers.

The terminal maps one or more items of content in the CSI report to the uplink control information and sends the mapped content to the network side device, and in the mapping process, the terminal also needs to sort according to the priority of each item of content, and in one implementation mode, the priority order of the content in the CSI report is from high to low:

m4 CRI;

m2 RIs;

m3 LI;

m1 PMIs;

m5 CQIs.

In one embodiment, when the uplink control information includes only one portion, the contents mapped in the uplink control information may sequentially include: one or more of m4 CRI, m2 RI, m3 LI, Z zero padding bits, m1 PMI, m5 CQI. The Z zero padding bits are determined according to the number of bits mapped by at least one of CRI, RI, and LI.

In another embodiment, the uplink control information includes a first portion and a second portion;

wherein the mapping content of the first portion includes at least one of:

m4 CRI;

m2 RIs;

m5 CQIs;

z zero padding bits;

a number indication of non-zero wideband amplitude coefficients for m1 PMIs;

a number indication of non-zero coefficients of m1 PMIs;

the mapping content of the second portion includes at least one of:

m3 LI;

broadband part of m1 PMIs;

even subband information of m1 PMIs;

odd subband information for m1 PMIs.

wherein the mapping content of the first portion includes at least one of:

m4 CRI;

m2 RIs;

z zero padding bits;

a number indication of non-zero wideband amplitude coefficients for m1 PMIs;

a number indication of non-zero coefficients of m1 PMIs;

the mapping content of the second portion includes at least one of:

m5 wideband CQIs;

m3 LI;

broadband part of m1 PMIs;

m5 even sub-bands CQI;

even subband information of m1 PMIs;

m5 odd sub-bands CQI;

odd subband information for m1 PMIs.

Wherein the mapping content of the first portion includes at least one of:

m4 CRI;

m2 RIs;

z zero padding bits;

m7 first codeword CQIs;

a number indication of non-zero wideband amplitude coefficients for m1 PMIs;

a number indication of non-zero coefficients of m1 PMIs;

the mapping content of the second portion includes at least one of:

m8 second codeword width CQIs;

m3 LI;

broadband part of m1 PMIs;

m8 second codeword even sub-bands CQIs;

even subband information of m1 PMIs;

m8 second codeword odd subbands CQIs;

m1 PMI odd subband information;

wherein m7+m8=m5, and m7 and m8 are positive integers.

The first codeword and the second codeword are the first codeword and the second codeword when the double codeword is transmitted.

In one embodiment, in a case where the terminal needs to discard a part of the content in the second portion, the discarding sequence is at least one of the following:

odd subband information, even subband information, wideband information;

m1 PMI odd sub-band information, m1 PMI even sub-band information, m5 odd sub-band CQI, m5 even sub-band CQI and wideband information;

wherein the odd subband information comprises odd subband information of the PMI and/or CQI;

The even subband information includes even subband information of the PMI and/or CQI;

the wideband information includes wideband information of at least one of:

wideband CQI;

LI；

PMI。

as can be seen from the technical solutions of the embodiments of the present application, in the embodiments of the present application, by determining the mapping sequence and the content of the uplink control information of the CSI report, and the discarding sequence, the terminal can implement CSI reporting according to the actual situation, so that the network side can timely acquire CSI for performing channel estimation or precoding matrix calculation.

In some embodiments, before configuring the CMR for the terminal, the network side device may determine the number of ports of the CMR, and configure the number of ports of the CMR to the terminal. Specifically, the network side device may configure a plurality of CMR groups for the terminal, where the number of ports of each CMR in the plurality of CMR groups is determined according to the maximum number of CMRs in the plurality of CMR groups, so as to ensure that the configuration of the CMR does not exceed the capability of the terminal. Taking a plurality of CMR groups as a first CMR group and a second CMR group as an example, the number of ports of each of at least one CMR included in the first CMR group is determined according to the maximum CMR number of the two CMR groups, that is, according to the maximum value of the number of CMRs in the first CMR group and the number of CMRs in the second CMR group. The number of ports of each of the at least one CMR included in the second CMR group is also determined based on the maximum value.

Specifically, the determination rule may be: for 2 CMR groups, where the first CMR group includes K1 CMRs and the second CMR group includes K2 CMRs, each CMR includes a maximum of 16 measurement ports if max { K1, K2} = 2, and a maximum of 8 measurement ports if 2< max { K1, K2} <8, and a maximum of 32 measurement ports if k1=k2=1.

Specifically, the determination rule may also be: for a CMR group, if the number of CMRs is equal to 1, the CMR is configured with 32 measurement ports at most, if the number of CMRs in a CMR group is equal to 2, the CMR is configured with 16 measurement ports at most, and if the number of CMRs in a CMR group is greater than 2 and less than 8, the CMR is configured with 8 measurement ports at most.

For example: the network configures one CMR set for measuring MTRP CSI reports, where 2 CMR groups are configured in the CMR set, the first group includes 2 CMRs, and the second group includes 3 CMRs, and the network needs to limit the number of ports of all 5 CMRs according to the second group, that is, each CMR is configured with 8 ports at most.

For example: the network configures one CMR set for measuring MTRP CSI reports, wherein 2 CMR groups are configured in the CMR set, the first group includes 1 CMR, and the second group includes 3 CMRs, and the network needs to limit the number of ports of all 4 CMRs according to the second group, that is, each CMR is configured with 8 ports at most.

For example: the network configures one CMR set for measuring MTRP CSI reports, wherein 2 CMR groups are configured in the CMR set, the first group includes 1 CMR, and the second group includes 2 CMRs, and the network needs to limit the number of ports of all 3 CMRs according to the second group, that is, each CMR is configured with 16 ports at most.

For example: the network configures one CMR set for measuring MTRP CSI reports, wherein 2 CMR groups are configured in the CMR set, the first group includes 1 CMR, and the second group includes 1 CMR, and the network needs to limit the number of ports of all 2 CMRs according to the second group, that is, each CMR is configured with 32 ports at most.

According to the channel state information acquisition method provided by the embodiment of the application, the execution body can be the channel state information acquisition device. In the embodiment of the present application, a method for acquiring channel state information by using a channel state information acquiring device is taken as an example, and the channel state information acquiring device provided in the embodiment of the present application is described.

As shown in fig. 3, the channel state information acquisition apparatus includes: the device comprises a measurement module 301 and a reporting module 302, wherein the measurement module 301 is used for acquiring channel state information according to channel state information report setting; wherein the channel state information report is configured for cooperative transmission; the reporting module 302 is configured to feed back a channel state information report to the network side device according to the acquired channel state information.

Optionally, the channel state information report setting includes at least one of:

n channel measurement resources for measuring channel state information of the cooperative transmission;

interference measurement resources for measuring channel state information of interference;

wherein N is a positive integer.

Optionally, the N channel measurement resources include a plurality of channel measurement resource groups, and the port number of each channel measurement resource in the plurality of channel measurement resource groups is determined according to the maximum channel measurement resource number of the plurality of channel measurement resource groups.

Optionally, the N channel measurement resources are determined by at least one of:

a set of channel measurement resources, said set of channel measurement resources comprising said N channel measurement resources;

and first indication information for indicating N channel measurement resources for measuring channel state information of the cooperative transmission.

Optionally, the N channel measurement resources are configured in at least one consecutive time slot.

Optionally, the interference measurement resource is determined by at least one of:

the corresponding relation between the N channel measurement resources and the interference measurement resources;

and second indication information, wherein the second indication information is used for indicating the interference measurement resource.

As can be seen from the above technical solutions of the embodiments of the present application, the embodiments of the present application perform channel state information acquisition through channel state information report setting for cooperative transmission; and feeding back a channel state information report according to the acquired channel state information, so that the CSI acquisition and report of coherent joint transmission are realized, the CSI can be accurately acquired, and further, the network side equipment can rapidly perform channel estimation or precoding matrix calculation.

Based on the foregoing embodiment, optionally, the measurement module is configured to obtain at least one of the following measurement results according to the N channel measurement resources:

m1 precoding matrix indications;

m2 rank indications;

m3 layer indications;

m4 channel state information reference signal resource indications;

m5 channel quality indications;

a phase difference between the m1 precoding matrix indicators;

wherein m1, m2, m3, m4 and m5 are positive integers.

Optionally, the m1 precoding matrix indications include:

the m1=m, and each precoding matrix indicates a corresponding one of the channel measurement resources.

Optionally, the m2 rank indications include at least one of:

the m2=m, and each rank indication corresponds to one channel measurement resource;

The m2=1 and each channel measurement resource employs the same rank indication.

Optionally, the m3 layer indications include at least one of:

the m3=m, and each layer indicates a corresponding channel measurement resource;

the m3=1 and the layer indication indicates the strongest layer of the m1 precoding matrix indications.

Optionally, the m4 channel state information reference signal resource indications include at least one of:

the m4=m, and each channel state information reference signal resource indicates a corresponding channel measurement resource;

the m4=1, and each channel measurement resource for acquiring the cooperative transmission channel state information adopts the same channel state information reference signal resource indication.

Optionally, the m5 channel quality indications include at least one of:

the m5=m, and each channel quality indication corresponds to one channel measurement resource;

m5= Σm6, and each channel quality indication set corresponds to one channel measurement resource, where the channel quality indication set includes m6 channel quality indications, each channel quality indication corresponds to one layer, and m6 is a value of a rank indication corresponding to each channel measurement resource;

Wherein m6 is a positive integer.

Optionally, in the case that m3=m and each layer indicates a corresponding channel measurement resource, the values of M6 channel quality indication indicators in each channel quality indication set are related to the values of the channel quality indication indicators corresponding to the first layer; the first layer is a layer of layer indication corresponding to the channel measurement resources corresponding to the channel quality indication set.

Optionally, in the set of channel quality indicators, the values of the channel quality indicators other than the values of the channel quality indicators corresponding to the first layer are differences of the values of the channel quality indicators corresponding to the first layer.

Optionally, in the case that m3=1 and the second layer indicated by the layer indication is the strongest layer of the m1 precoding matrix indications, the values of m6 channel quality indication indications in each channel quality indication set are related to the values of channel quality indication indications corresponding to the second layer.

Optionally, in the set of channel quality indicators, the values of the channel quality indicators other than the values of the channel quality indicators corresponding to the second layer are differences of the values of the channel quality indicators corresponding to the second layer.

Optionally, the M is determined by at least one of:

the M is configured or indicated by network side equipment, and the M is less than or equal to N;

the M is designated by the channel state information acquisition device and carried in a channel state information report fed back to the network side equipment;

the m=n.

As can be seen from the technical solutions of the embodiments of the present application, in the embodiments of the present application, the acquiring manner of each measurement result when acquiring CSI is determined through CSI report setting, so as to achieve accurate acquisition of CSI of coherent joint transmission.

Based on the above embodiment, optionally, the reporting module is configured to map the channel state information report to corresponding uplink control information for feedback; wherein the channel state information report includes at least one of:

m1 precoding matrix indications;

m2 rank indications;

m3 layer indications;

m4 channel state information reference signal resource indications;

m5 channel quality indications.

Optionally, the uplink control information includes a first portion and a second portion;

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m5 channel quality indications;

an indication of the number of non-zero wideband amplitude coefficients indicated by the m1 precoding matrices;

an indication of the number of non-zero coefficients indicated by the m1 precoding matrices;

the mapping content of the second portion includes at least one of:

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

even sub-band information indicated by m1 precoding matrixes;

m1 precoding matrices indicate odd subband information.

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

the mapping content of the second portion includes at least one of:

m5 wideband channel quality indications;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m5 even sub-band channel quality indications;

even sub-band information indicated by m1 precoding matrixes;

m5 odd sub-band channel quality indications;

m1 precoding matrices indicate odd subband information.

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m7 first codeword channel quality indications;

the mapping content of the second portion includes at least one of:

m8 second codeword width channel quality indicators;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m8 second codeword even subband channel quality indicators;

even sub-band information indicated by m1 precoding matrixes;

m8 second codeword odd subband channel quality indicators;

m1 precoding matrices indicate odd subband information;

wherein m7+m8=m5, and m7 and m8 are positive integers.

Optionally, the priority order of the content in the channel state information report is from high to low:

m4 channel state information reference signal resource indications;

m2 rank indications;

m3 layer indications;

m1 precoding matrix indications;

m5 channel quality indications.

Optionally, in a case where a part of the content in the second portion needs to be discarded, the discarding sequence is at least one of:

odd subband information, even subband information, wideband information;

the m1 precoding matrixes indicate odd sub-band information, the m1 precoding matrixes indicate even sub-band information, the m5 odd sub-band channel quality indications, the m5 even sub-band channel quality indications and broadband information;

wherein the odd subband information comprises the precoding matrix indication and/or the odd subband information of the channel quality indication;

the even sub-band information comprises even sub-band information of the precoding matrix indication and/or the channel quality indication;

the wideband information includes wideband information of at least one of:

broadband channel quality indication;

layer indication;

precoding matrix indication.

As can be seen from the technical solutions of the embodiments of the present application, in the embodiments of the present application, by determining the mapping sequence and the content of the uplink control information of the CSI report, and the discarding sequence, CSI reporting can be implemented according to actual situations, so that the network side can acquire CSI in time for performing channel estimation or precoding matrix calculation.

The channel state information obtaining device in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The channel state information obtaining device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

As shown in fig. 4, the embodiment of the present application provides a method for obtaining channel state information, where an execution body of the method is a network side device, in other words, the method may be executed by software or hardware installed in the network side device. The method comprises the following steps.

Step 410, the network side device sends configuration information for configuring channel state information report setting to the terminal; wherein the channel state information report is configured for cooperative transmission;

Step 420, the network side device receives a channel state information report from the terminal.

wherein N is a positive integer.

As can be seen from the technical solutions of the embodiments of the present application, in the embodiments of the present application, channel state information is obtained by configuring a channel state information report setting for cooperative transmission for a terminal, and channel state information is obtained from the channel state information report, so that CSI obtaining and reporting of coherent joint transmission are implemented, so that the terminal can accurately obtain CSI, and further, network side equipment can quickly perform channel estimation or precoding matrix calculation.

Based on the above embodiment, optionally, the step 420 includes:

receiving uplink control information from the terminal, wherein the channel state information is mapped in the uplink control information; wherein the channel state information report includes at least one of:

m1 precoding matrix indications;

m2 rank indications;

m3 layer indications;

m4 channel state information reference signal resource indications;

m5 channel quality indications;

wherein m1, m2, m3, m4 and m5 are positive integers.

Optionally, the m1 precoding matrix indications include:

Optionally, the m2 rank indications include at least one of:

Optionally, the m3 layer indications include at least one of:

the m4=1, and each channel measurement resource is indicated by the same channel state information reference signal resource.

Optionally, the m5 channel quality indications include at least one of:

wherein m6 is a positive integer.

Optionally, the M is determined by at least one of:

the M is configured or indicated by the network side equipment, and the M is less than or equal to N;

the M is designated by the terminal and carried in a channel state information report fed back to the network side equipment;

the m=n.

Based on the above embodiment, optionally, the uplink control information includes a first portion and a second portion;

Wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m5 channel quality indications;

the mapping content of the second portion includes at least one of:

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

even sub-band information indicated by m1 precoding matrixes;

m1 precoding matrices indicate odd subband information.

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

the mapping content of the second portion includes at least one of:

m5 wideband channel quality indications;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m5 even sub-band channel quality indications;

Even sub-band information indicated by m1 precoding matrixes;

m5 odd sub-band channel quality indications;

m1 precoding matrices indicate odd subband information.

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m7 first codeword channel quality indications;

the mapping content of the second portion includes at least one of:

m8 second codeword width channel quality indicators;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m8 second codeword even subband channel quality indicators;

even sub-band information indicated by m1 precoding matrixes;

m8 second codeword odd subband channel quality indicators;

m1 precoding matrices indicate odd subband information;

wherein m7+m8=m5, and m7 and m8 are positive integers.

m4 channel state information reference signal resource indications;

m2 rank indications;

m3 layer indications;

m1 precoding matrix indications;

m5 channel quality indications.

Optionally, in the case that the terminal needs to discard part of the content in the second portion, the discarding sequence is at least one of the following:

odd subband information, even subband information, wideband information;

the wideband information includes wideband information of at least one of:

broadband channel quality indication;

layer indication;

precoding matrix indication.

As shown in fig. 5, the channel state information acquisition apparatus includes: a configuration module 501 and a receiving module 502, wherein the configuration module 501 is configured to send configuration information for configuring a channel state information report setting to a terminal; wherein the channel state information report is configured for cooperative transmission; the receiving module 502 is configured to receive a channel state information report from the terminal.

Wherein N is a positive integer.

As can be seen from the technical solutions of the embodiments of the present application, in the embodiments of the present application, channel state information is obtained by configuring a channel state information report setting for cooperative transmission for a terminal, and channel state information is obtained from the channel state information report, so that CSI obtaining and reporting of joint transmission are achieved, and the terminal can accurately obtain CSI, and further channel estimation or precoding matrix calculation can be performed rapidly.

Based on the above embodiment, optionally, the receiving module is configured to:

m1 precoding matrix indications;

m2 rank indications;

m3 layer indications;

m4 channel state information reference signal resource indications;

m5 channel quality indications;

wherein m1, m2, m3, m4 and m5 are positive integers.

Optionally, the m1 precoding matrix indications include:

Optionally, the m2 rank indications include at least one of:

Optionally, the m3 layer indications include at least one of:

Optionally, the m5 channel quality indications include at least one of:

wherein m6 is a positive integer.

Optionally, the M is determined by at least one of:

the M is configured or indicated by the channel state information acquisition device, and the M is less than or equal to N;

the M is designated by the terminal and carried in a channel state information report fed back to the channel state information acquisition device;

the m=n.

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m5 channel quality indications;

the mapping content of the second portion includes at least one of:

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

even sub-band information indicated by m1 precoding matrixes;

m1 precoding matrices indicate odd subband information.

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

the mapping content of the second portion includes at least one of:

m5 wideband channel quality indications;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m5 even sub-band channel quality indications;

even sub-band information indicated by m1 precoding matrixes;

m5 odd sub-band channel quality indications;

m1 precoding matrices indicate odd subband information.

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m7 first codeword channel quality indications;

the mapping content of the second portion includes at least one of:

m8 second codeword width channel quality indicators;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m8 second codeword even subband channel quality indicators;

even sub-band information indicated by m1 precoding matrixes;

m8 second codeword odd subband channel quality indicators;

m1 precoding matrices indicate odd subband information;

wherein m7+m8=m5, and m7 and m8 are positive integers.

m4 channel state information reference signal resource indications;

m2 rank indications;

m3 layer indications;

m1 precoding matrix indications;

m5 channel quality indications.

odd subband information, even subband information, wideband information;

the wideband information includes wideband information of at least one of:

broadband channel quality indication;

layer indication;

precoding matrix indication.

The channel state information obtaining device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 4, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, where the memory 602 stores a program or instructions that can be executed on the processor 601, for example, when the communication device 600 is a terminal, the program or instructions implement the steps of the above-mentioned channel state information obtaining method embodiment when executed by the processor 601, and achieve the same technical effects. When the communication device 600 is a network side device, the program or the instruction, when executed by the processor 601, implements the steps of the above-described method embodiment for obtaining channel state information, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for acquiring the channel state information according to the channel state information report setting; the communication interface is used for feeding back the channel state information report to the network side equipment according to the acquired channel state information. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 7 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 700 includes, but is not limited to: at least some of the components of the radio frequency unit 701, the network module 702, the audio output unit 703, the input unit 704, the sensor 705, the display unit 706, the user input unit 707, the interface unit 708, the memory 709, and the processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 710 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 704 may include a graphics processing unit (Graphics Processing Unit, GPU) 7041 and a microphone 7042, with the graphics processor 7041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from the network side device, the radio frequency unit 701 may transmit the downlink data to the processor 710 for processing; in addition, the radio frequency unit 701 may send uplink data to the network side device. Typically, the radio unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 may be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 709 may include volatile memory or nonvolatile memory, or the memory 709 may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (ProgrammableROM, PROM), an erasable programmable Read-only memory (ErasablePROM, EPROM), an electrically erasable programmable Read-only memory (ElectricallyEPROM, EEPROM), or a flash memory, among others. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 709 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 710.

Wherein, the processor 710 is configured to perform channel state information acquisition according to the channel state information report setting; wherein the channel state information report is configured for cooperative transmission.

The radio frequency unit 701 is configured to feed back a channel state information report to the network side device according to the acquired channel state information.

wherein N is a positive integer.

The embodiment of the application realizes the CSI acquisition and reporting of coherent joint transmission, so that the terminal can accurately acquire the CSI, and further, the network side equipment can rapidly perform channel estimation or precoding matrix calculation.

Based on the above embodiment, optionally, the processor 710 is configured to obtain at least one of the following measurement results according to the N channel measurement resources:

m1 precoding matrix indications;

m2 rank indications;

m3 layer indications;

m4 channel state information reference signal resource indications;

m5 channel quality indications;

a phase difference between the m1 precoding matrix indicators;

wherein m1, m2, m3, m4 and m5 are positive integers.

Optionally, the m1 precoding matrix indications include:

Optionally, the m2 rank indications include at least one of:

Optionally, the m3 layer indications include at least one of:

Optionally, the m5 channel quality indications include at least one of:

Wherein m6 is a positive integer.

Optionally, the M is determined by at least one of:

the m=n.

The embodiment of the application realizes the CSI acquisition of coherent joint transmission, so that the terminal can accurately acquire the CSI.

Based on the above embodiment, optionally, the radio frequency unit 701 is configured to map the channel state information report to corresponding uplink control information for feedback; wherein the channel state information report includes at least one of:

m1 precoding matrix indications;

m2 rank indications;

m3 layer indications;

m4 channel state information reference signal resource indications;

m5 channel quality indications.

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m5 channel quality indications;

The mapping content of the second portion includes at least one of:

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

even sub-band information indicated by m1 precoding matrixes;

m1 precoding matrices indicate odd subband information.

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

the mapping content of the second portion includes at least one of:

m5 wideband channel quality indications;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m5 even sub-band channel quality indications;

even sub-band information indicated by m1 precoding matrixes;

m5 odd sub-band channel quality indications;

m1 precoding matrices indicate odd subband information.

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m7 first codeword channel quality indications;

the mapping content of the second portion includes at least one of:

m8 second codeword width channel quality indicators;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m8 second codeword even subband channel quality indicators;

even sub-band information indicated by m1 precoding matrixes;

m8 second codeword odd subband channel quality indicators;

m1 precoding matrices indicate odd subband information;

wherein m7+m8=m5, and m7 and m8 are positive integers.

m4 channel state information reference signal resource indications;

m2 rank indications;

m3 layer indications;

m1 precoding matrix indications;

m5 channel quality indications.

odd subband information, even subband information, wideband information;

the wideband information includes wideband information of at least one of:

broadband channel quality indication;

layer indication;

precoding matrix indication.

According to the embodiment of the application, the terminal can report the CSI according to the actual situation, so that the network side can acquire the CSI in time for channel estimation or precoding matrix calculation.

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the processor is used for determining configuration information for configuring channel state information report settings, and the communication interface is used for sending the configuration information for configuring the channel state information report settings to the terminal; a channel state information report is received from the terminal. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 8, the network side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information via the antenna 81, and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted, and transmits the processed information to the radio frequency device 82, and the radio frequency device 82 processes the received information and transmits the processed information through the antenna 81.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 83, and the baseband apparatus 83 includes a baseband processor.

The baseband device 83 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, a baseband processor, is connected to the memory 85 through a bus interface, so as to call a program in the memory 85 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 86, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 800 of the embodiment of the present invention further includes: instructions or programs stored in the memory 85 and executable on the processor 84, the processor 84 invokes the instructions or programs in the memory 85 to perform the method performed by the modules shown in fig. 5, and achieve the same technical effects, and are not repeated here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the foregoing channel state information obtaining method embodiment are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is configured to run a program or an instruction, implement each process of the above embodiment of the channel state information obtaining method, and achieve the same technical effect, so that repetition is avoided, and no further description is provided here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above-mentioned channel state information obtaining method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides a system for acquiring the channel state information, which comprises the following steps: the terminal can be used for executing the steps of the channel state information acquisition method, and the network side device can be used for executing the steps of the channel state information acquisition method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A channel state information acquisition method, comprising:

2. The method of claim 1, wherein the channel state information report setting indicates at least one of:

wherein N is a positive integer.

3. The method of claim 2, wherein the N channel measurement resources are determined by at least one of:

4. The method of claim 2, wherein the N channel measurement resources are configured in at least one consecutive time slot.

5. The method of claim 2, wherein the interference measurement resources are determined by at least one of:

6. The method of claim 2, wherein the channel state information acquisition according to the channel state information reporting setting comprises:

acquiring at least one of the following measurement results according to the N channel measurement resources:

m1 precoding matrix indications;

m2 rank indications;

m3 layer indications;

m4 channel state information reference signal resource indications;

m5 channel quality indications;

a phase difference between the m1 precoding matrix indicators;

wherein m1, m2, m3, m4 and m5 are positive integers.

7. The method of claim 6, wherein the m1 precoding matrix indicators comprise:

8. The method of claim 6, wherein the m2 rank indications comprise at least one of:

9. The method of claim 6, wherein the m3 layer indications comprise at least one of:

10. The method of claim 6, wherein the m4 channel state information reference signal resource indications comprise at least one of:

11. The method of claim 6, wherein the m5 channel quality indications comprise at least one of:

Wherein m6 is a positive integer.

12. The method according to claim 11, wherein in the case that m3=m and each layer indicates a corresponding one of the channel measurement resources, the values of the M6 channel quality indication indications in each set of channel quality indications are related to the value of the channel quality indication corresponding to the first layer; the first layer is a layer of layer indication corresponding to the channel measurement resources corresponding to the channel quality indication set.

13. The method of claim 12, wherein the values of the channel quality indication indications in the set of channel quality indications, except for the value of the channel quality indication corresponding to the first layer, are differences in the values of the channel quality indication corresponding to the first layer.

14. The method of claim 11, wherein in the case where the m3=1 and the second layer of the layer indication indications is the strongest layer of the m1 precoding matrix indications, the values of the m6 channel quality indication indications in each set of channel quality indications are related to the values of the channel quality indication indications corresponding to the second layer.

15. The method of claim 14, wherein the values of the channel quality indication indications in the set of channel quality indications other than the value of the channel quality indication corresponding to the second layer are differences in the values of the channel quality indication corresponding to the second layer.

16. The method according to any one of claims 7-15, wherein M is determined by at least one of:

the m=n.

17. The method according to claim 6, wherein the terminal feeds back a channel state information report to the network side device according to the acquired channel state information, including:

mapping the channel state information report to corresponding uplink control information for feedback; wherein the channel state information report includes at least one of:

m1 precoding matrix indications;

m2 rank indications;

m3 layer indications;

m4 channel state information reference signal resource indications;

m5 channel quality indications.

18. The method of claim 17, wherein the uplink control information comprises a first portion and a second portion;

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m5 channel quality indications;

the mapping content of the second portion includes at least one of:

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

even sub-band information indicated by m1 precoding matrixes;

m1 precoding matrices indicate odd subband information.

19. The method of claim 17, wherein the uplink control information comprises a first portion and a second portion;

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

The mapping content of the second portion includes at least one of:

m5 wideband channel quality indications;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m5 even sub-band channel quality indications;

even sub-band information indicated by m1 precoding matrixes;

m5 odd sub-band channel quality indications;

m1 precoding matrices indicate odd subband information.

20. The method of claim 17, wherein the uplink control information comprises a first portion and a second portion;

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m7 first codeword channel quality indications;

the mapping content of the second portion includes at least one of:

m8 second codeword width channel quality indicators;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m8 second codeword even subband channel quality indicators;

even sub-band information indicated by m1 precoding matrixes;

m8 second codeword odd subband channel quality indicators;

m1 precoding matrices indicate odd subband information;

wherein m7+m8=m5, and m7 and m8 are positive integers.

21. The method according to any of claims 17-20, wherein the priority order of the content in the channel state information report is from high to low:

m4 channel state information reference signal resource indications;

m2 rank indications;

m3 layer indications;

m1 precoding matrix indications;

m5 channel quality indications.

22. The method according to any of claims 18-20, wherein in case the terminal needs to discard part of the content in the second part, the discarding order is at least one of:

odd subband information, even subband information, wideband information;

The wideband information includes wideband information of at least one of:

broadband channel quality indication;

layer indication;

precoding matrix indication.

23. The method of claim 2, wherein the N channel measurement resources comprise a plurality of channel measurement resource groups, and wherein the number of ports of each channel measurement resource in the plurality of channel measurement resource groups is determined based on a maximum number of channel measurement resources of the plurality of channel measurement resource groups.

24. A channel state information acquisition apparatus, comprising:

25. A channel state information acquisition method, comprising:

26. The method of claim 25, wherein the channel state information reporting setting comprises at least one of:

wherein N is a positive integer.

27. The method of claim 26, wherein the N channel measurement resources are determined by at least one of:

28. The method of claim 26, wherein the N channel measurement resources are configured in at least one consecutive time slot.

29. The method of claim 26, wherein the interference measurement resources are determined by at least one of:

30. The method of claim 25, wherein said receiving a channel state information report from the terminal comprises:

m1 precoding matrix indications;

m2 rank indications;

m3 layer indications;

m4 channel state information reference signal resource indications;

m5 channel quality indications;

wherein m1, m2, m3, m4 and m5 are positive integers.

31. The method of claim 30, wherein the m1 precoding matrix indicators comprise:

32. The method of claim 30, wherein the m2 rank indications comprise at least one of:

33. The method of claim 30, wherein the m3 layer indications comprise at least one of:

34. The method of claim 30, wherein the m4 channel state information reference signal resource indications comprise at least one of:

35. The method of claim 30, wherein the m5 channel quality indications comprise at least one of:

wherein m6 is a positive integer.

36. The method according to claim 35, wherein in the case that m3=m and each layer indicates a corresponding one of the channel measurement resources, the values of the M6 channel quality indication indications in each set of channel quality indications are related to the value of the channel quality indication corresponding to the first layer; the first layer is a layer of layer indication corresponding to the channel measurement resources corresponding to the channel quality indication set.

37. The method of claim 36, wherein the values of the channel quality indication indications in the set of channel quality indications other than the value of the channel quality indication corresponding to the first layer are differences in the values of the channel quality indication corresponding to the first layer.

38. The method of claim 35, wherein in the case where the m3=1 and the second layer of the layer indication indications is the strongest layer of the m1 precoding matrix indications, the values of the m6 channel quality indication indications in each set of channel quality indications are related to the value of the channel quality indication corresponding to the second layer.

39. The method of claim 38, wherein the values of the channel quality indication indications in the set of channel quality indications other than the value of the channel quality indication corresponding to the second layer are differences in the values of the channel quality indication corresponding to the second layer.

40. The method of any one of claims 31-39, wherein M is determined by at least one of:

the m=n.

41. The method of claim 30, wherein the uplink control information comprises a first portion and a second portion;

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m5 channel quality indications;

the mapping content of the second portion includes at least one of:

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

even sub-band information indicated by m1 precoding matrixes;

m1 precoding matrices indicate odd subband information.

42. The method of claim 30, wherein the uplink control information comprises a first portion and a second portion;

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

the mapping content of the second portion includes at least one of:

m5 wideband channel quality indications;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m5 even sub-band channel quality indications;

even sub-band information indicated by m1 precoding matrixes;

m5 odd sub-band channel quality indications;

m1 precoding matrices indicate odd subband information.

43. The method of claim 30, wherein the uplink control information comprises a first portion and a second portion;

wherein the mapping content of the first portion includes at least one of:

m4 channel state information reference signal resource indications;

m2 rank indications;

m7 first codeword channel quality indications;

the mapping content of the second portion includes at least one of:

m8 second codeword width channel quality indicators;

m3 layer indications;

a wideband portion indicated by m1 precoding matrices;

m8 second codeword even subband channel quality indicators;

even sub-band information indicated by m1 precoding matrixes;

m8 second codeword odd subband channel quality indicators;

m1 precoding matrices indicate odd subband information;

wherein m7+m8=m5, and m7 and m8 are positive integers.

44. The method of any of claims 30 and 41-43, wherein the priority order of the content in the channel state information report is from high to low:

m4 channel state information reference signal resource indications;

m2 rank indications;

m3 layer indications;

m1 precoding matrix indications;

m5 channel quality indications.

45. The method according to any one of claims 41-43, wherein in case the terminal needs to discard part of the content in the second portion, the discarding sequence is at least one of:

odd subband information, even subband information, wideband information;

the wideband information includes wideband information of at least one of:

broadband channel quality indication;

layer indication;

precoding matrix indication.

46. The method of claim 26, wherein the N channel measurement resources comprise a plurality of channel measurement resource groups, and wherein the number of ports of each channel measurement resource in the plurality of channel measurement resource groups is determined based on a maximum number of channel measurement resources of the plurality of channel measurement resource groups.

47. A channel state information acquisition apparatus, comprising:

48. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the channel state information acquisition method of any one of claims 1 to 23.

49. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the channel state information acquisition method of any one of claims 25 to 46.

50. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the channel state information acquisition method according to any one of claims 1-23, or the steps of the channel state information acquisition method according to any one of claims 25 to 46.