CN115669152A - Parameter indication method, device, equipment and storage medium - Google Patents

Parameter indication method, device, equipment and storage medium Download PDF

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Publication number
CN115669152A
CN115669152A CN202280003281.9A CN202280003281A CN115669152A CN 115669152 A CN115669152 A CN 115669152A CN 202280003281 A CN202280003281 A CN 202280003281A CN 115669152 A CN115669152 A CN 115669152A
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China
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cmrs
parameter information
information
vector parameter
base vector
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Chinese (zh)
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李明菊
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a parameter indication method, a parameter indication device, a parameter indication equipment and a storage medium, and relates to the field of mobile communication. The method comprises the following steps: and the terminal sends indication information to the network equipment, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not. The scheme that the terminal indicates whether the base vector parameter shared by the CMRs exists or not is provided, so that the base vector parameter information reported by the subsequent terminal is shared by the CMRs, reporting overhead is saved, and transmission resources are saved.

Description

Parameter indication method, device, equipment and storage medium
Technical Field
The present application relates to the field of mobile communications, and in particular, to a parameter indication method, apparatus, device, and storage medium.
Background
A scheme for a network device to provide a service to a terminal through a plurality of TRPs is provided in a mobile communication system. And the terminal also performs CSI (Channel State Information) measurement, so that the terminal selects a basis vector for each TRP and reports the selected basis vector to the network device. However, how the terminal reports the selected basis vectors becomes an urgent problem to be solved.
Disclosure of Invention
The embodiment of the application provides a parameter indicating method, a parameter indicating device and a storage medium, and provides a scheme for indicating whether a plurality of CMRs share a base vector parameter or not by a terminal, so that base vector parameter information reported by a subsequent terminal is shared by the plurality of CMRs, reporting overhead is saved, and transmission resources are saved. The technical scheme is as follows:
according to a first aspect of the present application, there is provided a parameter indication method, the method being performed by a terminal, the method comprising:
and sending indication information to the network equipment, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not.
In an exemplary embodiment, the method further comprises:
and on the condition that the indication information indicates that the base vector parameter information of at least two CMRs is the same, sending first base vector parameter information to the network equipment, wherein the at least two CMRs share the first base vector parameter information.
In an exemplary embodiment, the sending the first basis vector parameter information to the network device includes:
and sending first base vector parameter information of a first CMR in the at least two CMRs to the network equipment, wherein the base vector parameter information of other CMRs except the first CMR in the at least two CMRs is the same as the first base vector parameter information.
In an exemplary embodiment, the sending the first basis vector parameter information of the first of the at least two CMRs to the network device includes:
and sending the first base vector parameter information of the first CMR of the plurality of CMRs to the network equipment when the at least two CMRs are all the CMRs of the plurality of CMRs.
In an exemplary embodiment, the sending, to the network device, the first basis vector parameter information of the first one of the at least two CMRs includes:
and in the case that the at least two CMRs are partial CMRs of the plurality of CMRs, sending first base vector parameter information of a first CMR of the at least two CMRs to the network equipment, wherein the indication information is also used for indicating identification information of the first CMR.
In an exemplary embodiment, the method further comprises:
and under the condition that the indication information indicates that the base vector parameter information of the CMRs is different, respectively sending the base vector parameter information of each CMR in the CMRs to the network equipment.
In an exemplary embodiment, the plurality of CMRs are different NZP CSI-RS resources, or the plurality of CMRs are different port groups of the same NZP CSI-RS resource, and the port group includes one or more ports.
In an exemplary embodiment, the basis vector parameter information includes at least one of:
the number of space-domain basis vectors;
identification of the space domain basis vector;
the number of frequency domain basis vectors;
an identification of the frequency domain basis vectors;
a starting position of the frequency domain basis vector window.
In an exemplary embodiment, the indication information is carried in a CSI report.
In an exemplary embodiment, the CSI report includes a first information field and a second information field;
the first information field includes the indication information and the second information field includes the basis vector parameter information.
According to a second aspect of the present application, there is provided a parameter indication method, the method being performed by a network device, the method comprising:
and receiving indication information sent by a terminal, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not.
In an exemplary embodiment, the method further comprises:
receiving first base vector parameter information sent by the terminal, wherein the first base vector parameter information is sent by the terminal under the condition that the indication information indicates that the base vector parameter information of at least two CMRs is the same, and the at least two CMRs share the first base vector parameter information.
In an exemplary embodiment, the method further comprises:
and receiving first base vector parameter information of a first CMR in the at least two CMRs, which is sent by the terminal, wherein the base vector parameter information of other CMRs except the first CMR in the at least two CMRs is the same as the first base vector parameter information.
In an exemplary embodiment, the first basis vector parameter information for a first one of the plurality of CMRs is sent by the terminal if the at least two CMRs are all of the plurality of CMRs.
In an exemplary embodiment, the first basis vector parameter information of a first CMR of the at least two CMRs is sent by the terminal if the at least two CMRs are partial CMRs of the plurality of CMRs, and the indication information is further used to indicate identification information of the first CMR.
In an exemplary embodiment, the method further comprises:
receiving base vector parameter information of each CMR in the CMRs, which is sent by the terminal respectively; the base vector parameter information of each CMR in the plurality is sent by the terminal if the indication information indicates that the base vector parameter information of the CMRs is different.
In an exemplary embodiment, the plurality of CMRs are different NZP CSI-RS resources, or the plurality of CMRs are different port groups of the same NZP CSI-RS resource, and the port group includes one or more ports.
In an exemplary embodiment, the basis vector parameter information includes at least one of:
the number of space domain basis vectors;
identification of the space domain basis vector;
the number of frequency domain basis vectors;
an identification of the frequency domain basis vectors;
the starting position of the frequency domain basis vector window.
In an exemplary embodiment, the indication information is carried in a CSI report.
In an exemplary embodiment, the CSI report includes a first information field and a second information field;
the first information field includes the indication information and the second information field includes the basis vector parameter information.
According to a third aspect of the present application, there is provided a parameter indicating apparatus, the apparatus comprising:
and the sending module is used for sending indication information to the network equipment, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not.
According to a fourth aspect of the present application, there is provided a parameter indicating apparatus, the apparatus comprising:
and the receiving module is used for receiving indication information sent by the terminal, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not.
According to a fifth aspect of the present application, there is provided a terminal comprising: a processor; a transceiver coupled to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute executable instructions to implement the parameter indication method as described in the above aspect.
According to a sixth aspect of the present application, there is provided a network device comprising: a processor; a transceiver coupled to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute executable instructions to implement the parameter indication method as described in the above aspect.
According to a seventh aspect of the present application, there is provided a communication system, the communication system comprising a terminal and a network device, the terminal being configured to implement the parameter indication method according to the first aspect, and the network device being configured to implement the parameter indication method according to the second aspect.
According to an eighth aspect of the present application, there is provided a computer-readable storage medium having stored therein executable program code, which is loaded and executed by a processor to implement the parameter indication method of the above aspect.
According to a ninth aspect of the present application, there is provided a chip comprising programmable logic circuits and/or program instructions for implementing the parameter indication method according to the above aspect when the chip is run on a terminal or a network device.
According to a tenth aspect of the present application, a computer program product is provided for implementing the parameter indication method of the above aspect when executed by a processor of a terminal or a network device.
The scheme that the terminal indicates whether the base vector parameter shared by the CMRs exists or not is provided, so that the base vector parameter information reported by the subsequent terminal is shared by the CMRs, the reporting overhead is saved, and the transmission resource is saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 illustrates a block diagram of a communication system provided by an exemplary embodiment of the present application;
FIG. 2 illustrates a block diagram of another communication system provided by an exemplary embodiment of the present application;
FIG. 3 is a flow chart illustrating a method for indicating parameters provided by an exemplary embodiment of the present application;
FIG. 4 illustrates a flow chart of a parameter indication method provided by an exemplary embodiment of the present application;
FIG. 5 illustrates a flow chart of a parameter indication method provided by an exemplary embodiment of the present application;
FIG. 6 shows a block diagram of a parameter indicating apparatus provided in an exemplary embodiment of the present application;
FIG. 7 illustrates a block diagram of a parameter indicating apparatus provided in an exemplary embodiment of the present application;
fig. 8 shows a schematic structural diagram of a communication device according to an exemplary embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which like numerals refer to the same or similar elements throughout the different views unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Depending on the context, for example, the word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination".
It should be noted that information (including but not limited to user equipment information, user personal information, etc.), data (including but not limited to data for analysis, stored data, presented data, etc.), and signals referred to in this application are authorized by the user or sufficiently authorized by various parties, and the collection, use, and processing of the relevant data is required to comply with relevant laws and regulations and standards in relevant countries and regions.
A number of terms provided in the examples of this application are first summarized.
Base vector quantity: the basis vectors include space-domain basis vectors and frequency-domain basis vectors. The spatial basis vectors may be understood as beams, and the frequency domain basis vectors may be understood as vectors comprising phases corresponding to respective frequency domain elements.
In some embodiments, the network device may provide a service for the terminal, configure a CSI (Channel State Information) measurement configuration for the terminal, perform CSI measurement based on the CSI measurement configuration, and report an obtained CSI report to the network device. Wherein the CSI report includes information of the basis vectors. For example, the CSI includes at least one of spatial-domain basis vector information and frequency-domain basis vector information.
Optionally, the CSI report includes a Precoding Matrix Indicator (PMI) report, and the PMI includes a selection of at least one of a spatial basis vector and a frequency basis vector.
Next, an application scenario of the present application will be explained:
fig. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application, which may include: a terminal 10 and a network device 20.
The number of terminals 10 is usually plural, and one or more terminals 10 may be distributed in a cell managed by each network device 20. The terminal 10 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems having wireless communication capabilities, as well as various forms of User Equipment (UE), mobile Stations (MS), and the like. For convenience of description, in the embodiments of the present application, the above-mentioned devices are collectively referred to as a terminal.
The network device 20 is an apparatus deployed in an access network to provide wireless communication functions for the terminal 10. For convenience of description, in the embodiment of the present application, the above-mentioned apparatuses providing the terminal 10 with the wireless communication function are collectively referred to as a network device. The network device 20 and the terminal 10 may establish a connection over the air interface, so as to perform communication, including signaling and data interaction, through the connection. There may be a plurality of network devices 20, and two adjacent network devices 20 may communicate with each other in a wired or wireless manner. The terminal 10 can perform data transmission between different network devices 20, that is, establish connection with different network devices 20.
The network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different Radio access technologies, names of devices having network device functions may be different, for example, in a 5G NR (New Radio, new air interface) system, called a nodeb or a gNB. As communication technology evolves, the name "network device" may change.
Optionally, the network device 20 is provided with at least two TRPs (Transmission Reception points); or at least two network devices 20, at least one TRP is provided on each network device 20, i.e. at least two network devices 20 are provided with at least two TRPs. That is, at least two TRPs may be from the same cell or different cells.
In some embodiments, referring to fig. 2, 4 TRPs are set on the network device 20, and the terminal 10 may be served by the 4 TRPs, and the terminal 10 needs to perform CSI measurement reporting for the 4 TRPs.
Alternatively, the TRP in the embodiment of the present application may actually indicate one TRP by a CMR (Channel Measurement Resource), that is, one CMR. If the network device 20 is configured with 4 TRPs, 4 CMRs are used to indicate the 4 TRPs, respectively.
It should be noted that the examples of the present application are only intended to illustrate TRP. In another embodiment, the TRP may also be referred to as RRH (Remote Radio Head), that is, the CMR in the embodiment of the present application corresponds to RRH.
The "5G NR system" in the embodiment of the present application may also be referred to as a 5G system or an NR system, but those skilled in the art can understand the meaning thereof. The technical scheme described in the embodiment of the application can be applied to a 5G NR system and can also be applied to a subsequent evolution system of the 5G NR system.
Fig. 3 shows a flowchart of a parameter indication method provided in an exemplary embodiment of the present application, which may be applied to the terminal and the network device shown in fig. 1, and the method includes at least some of the following contents:
step 301: and the terminal sends indication information to the network equipment, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not.
Step 302: and the network equipment receives indication information sent by the terminal, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not.
In the embodiment of the present application, the network device and the terminal may communicate with each other, the network device may configure a channel measurement resource set for the terminal, and the terminal may perform measurement according to the configured channel measurement resource set and report the selected basis vector parameter information to the network device.
The network device configures a plurality of CMRs for the terminal, so that the terminal determines the selected base vector parameter information for each of the CMRs, and the base vector parameter information of each CMR determined by the terminal may be the same or different, so that the terminal may send, to the network device, indication information indicating whether the base vector parameter information of the plurality of CMRs is the same, and after receiving the indication information sent by the terminal, the network device may determine whether the base vector parameter information of the plurality of CMRs is the same.
In some embodiments, each of the plurality of CMRs corresponds to one TRP, i.e., the plurality of CMRs correspond one-to-one to the plurality of TRPs. Alternatively, the network device may provide services to the terminal through a plurality of TRPs.
For example, if the number of CMRs is 4, it can be understood that 4 TRPs are set between the network device and the terminal, and data transmission is performed through the 4 TRPs. And for the terminal, the terminal needs to report the selected basis vector parameter information for each of the 4 TRPs.
Optionally, the CMRs are different NZP CSI-RS (Non-Zero Power Channel State Information Reference Signal) resources, or the CMRs are different port groups of the same NZP CSI-RS resource, and a port group includes one or more ports. In the embodiment of the present disclosure, part of the CMRs in all the CMRs may be different NZP CSI-RS resources, or part of the CMRs in all the CMRs may be different port groups of the same NZP CSI-RS resource, where the port group includes one or more ports. Of course, all the CMRs may be different NZP CSI-RS resources, or all the CMRs may be different port groups of the same NZP CSI-RS resource, where the port group includes one or more ports.
In an embodiment of the application, one CMR comprises NZP CSI-RS resources, and different CMRs comprise different CSI-RS resources. Wherein, one CMR corresponds to one TRP, different NZP CSI-RS resources in the embodiment of the present application can be understood as corresponding to different TRPs.
For example, embodiments of the present application relate to 4 CMRs, CMR1, CMR2, CMR3, and CMR4, respectively, whereas CMR1 includes NZP CSI-RS resources 1, CMR2 includes NZP CSI-RS resources 2, CMR3 includes NZP CSI-RS resources 3, CMR4 includes NZP CSI-RS resources 4.
Or, different CMRs include different port groups of the same NZP CSI-RS resource, and all the port groups included by the CMRs belong to the same NZP CSI-RS resource. Wherein one port group includes at least one port. Where one CMR corresponds to one TRP, different port groups in the embodiment of the present application may be understood as corresponding to different TRPs.
For example, the embodiment of the application relates to 4 CMRs, namely CMR1, CMR2, CMR3 and CMR4, while one NZP CSI RS resource comprises 32 ports, divided into 4 port groups, each port group comprising 8 ports, while CMR1 comprises port group 1, CMR2 comprises port group 2, CMR3 comprises port group 3, and CMR4 comprises port group 4.
In some embodiments, the basis vector parameter information comprises at least one of:
(1) The number of spatial basis vectors.
The number of the space-domain basis vectors refers to the number of the space-domain basis vectors reported by the terminal for each or multiple CMRs. In some embodiments, the spatial basis vectors may be understood as beams, that is, the number of spatial basis vectors actually refers to the number of beams selected by the terminal.
(2) And (5) identification of space-domain basis vectors.
Wherein the identifier of the spatial basis vector is used for indicating the spatial basis vector. In some embodiments, the spatial basis vector may be understood as a beam, that is, the identification of the spatial basis vector actually refers to the identification of the beam selected by the terminal, which is used to indicate the beam. In some embodiments, the combined identification of the plurality of spatial basis vectors may be fed back directly.
(3) The number of frequency domain basis vectors.
The number of the frequency domain basis vectors refers to the number of the frequency domain basis vectors reported by the terminal for each or multiple CMRs. In some embodiments, the frequency-domain basis vectors may be understood as vectors including phases corresponding to respective frequency-domain units, that is, the number of frequency-domain basis vectors actually refers to the number of vectors selected by the terminal.
(4) Identification of frequency domain basis vectors.
Wherein the identification of the frequency domain basis vector is used to indicate the frequency domain basis vector. In some embodiments, the frequency domain basis vector may be understood as a vector comprising the phases corresponding to the respective frequency domain units, that is to say that the identity of the frequency domain basis vector actually refers to the identity of the vector selected by the terminal. In some embodiments, the combined identity of the plurality of frequency-domain basis vectors may be fed back directly.
(5) The start position of the frequency domain basis vector window.
In this embodiment, the frequency domain basis vector window has a certain window length, and the terminal may determine the starting position of the window of the frequency domain basis vector based on the selected frequency domain basis vector, so as to notify the network device.
Optionally, the window length of the frequency domain basis vector is configured by the network device, or agreed by the communication protocol, or configured in another manner, which is not limited in the embodiment of the present application.
It should be noted that the indication information in the embodiment of the present application is carried in the CSI report. The network device may configure a CMR for the terminal, and then after determining the CMR configured by the network device, the terminal may perform CSI measurement based on the configured CMR to obtain a CSI report, where the CSI report includes indication information determined by the terminal, and then send the CSI report carrying the indication information to the network device, and after receiving the CSI report, the network device may determine whether the base vector parameter information of the multiple CMRs is the same.
In some embodiments, the terminal performs CSI measurement based on the configured CMRs, that is, may determine the base vector parameter information of each CMR, and then determine whether the base vector parameter information of the CMRs is the same according to the base vector parameter information of each CMR in the CMRs, so as to indicate to the network device whether the base vector parameter information of the CMRs is the same through CSI reporting.
In some embodiments, the CSI report includes a first information field including indication information and a second information field including basis vector parameter information.
Optionally, the first information field includes not only indication information, but also information such as CRI (CSI-RS Resource Indicator), rank (Rank) indication, and the like. The second information field includes a PMI in which base vector parameter information is carried.
It should be noted that, in the embodiment of the present application, the steps executed by the terminal may form a new embodiment separately, and the steps executed by the network device may also form a new embodiment separately, which is not limited in the present application.
The scheme that the terminal indicates whether the base vector parameter shared by the CMRs exists or not is provided, so that the base vector parameter information reported by the subsequent terminal is shared by the CMRs, the reporting overhead is saved, and the transmission resource is saved.
The embodiment shown in fig. 3 illustrates that the terminal may transmit indication information indicating whether the basis vector parameter information of a plurality of CMRs is the same. And the terminal also sends the base vector parameter information shared by the CMRs to the network equipment when the determination indication information indicates that the base vector parameter information of the CMRs is the same. Fig. 4 shows a flowchart of a parameter indication method provided in an exemplary embodiment of the present application, which may be applied to the terminal and the network device shown in fig. 1, and the method includes at least some of the following:
step 401: and the terminal sends the first base vector parameter information to the network equipment under the condition that the indication information indicates that the base vector parameter information of at least two CMRs is the same, and the at least two CMRs share the first base vector parameter information.
Step 402: the network equipment receives first base vector parameter information sent by the terminal, wherein the first base vector parameter information is sent by the terminal under the condition that the indication information indicates that the base vector parameter information of at least two CMRs is the same, and the at least two CMRs share the first base vector parameter information.
In this embodiment of the application, if there is at least two CMRs with the same base vector parameter information, the terminal may indicate, through the indication information, that the base vector parameter information of the at least two CMRs is the same, and the terminal may also report, to the network device, the first base vector parameter information shared by the at least two CMRs, and after receiving the first base vector parameter information, the network device may determine the base vector parameter information of the at least two CMRs of the terminal.
In some embodiments, the terminal sends, to the network device, first basis vector parameter information of a first CMR of the at least two CMRs, and the basis vector parameter information of other CMRs of the at least two CMRs except the first CMR is the same as the first basis vector parameter information. That is to say, after the terminal reports the first base vector parameter information of the first CMR of the at least two CMRs, the base vector parameter information of CRMs except the first CMR of the at least two CMRs all multiplexes the first base vector parameter information of the first CMR.
In this embodiment, for a network device, the network device receives first basis vector parameter information of a first CMR of at least two CMRs sent by a terminal, and the basis vector parameter information of other CMRs of the at least two CMRs except the first CMR is the same as the first basis vector parameter information.
For example, the at least two CMRs include CMR1, CMR2, CMR3, and CMR4, and the indication information indicates that the basis vector parameter information of the at least two CMRs is the same, that is, the basis vector parameter information of CMR1, CMR2, CMR3, and CMR4 is the same. The terminal transmits first basis vector parameter information of the CMR1 belonging to the first one of the CMR1, CMR2, CMR3 and CMR4 to the network device, and the basis vector parameter information of the CMR2, CMR3 and CMR4 is identical to the first basis vector parameter information of the CMR 1.
In this embodiment of the application, if the indication information indicates that the base vector parameter information of the at least two CMRs is the same, the terminal reports the first base vector parameter information of the first CMR of the at least two CMRs to the network device, and the base vector parameter information of other CMRs multiplexes the first base vector parameter information of the first CMR.
It should be noted that, in the embodiment of the present application, the base vector parameter information may include different parameters, and the fact that the base vector parameter information of different CMRs is the same means that all the parameters included in the base vector parameter information of different CMRs are the same.
The base vector parameter information comprises at least one of the number of the space domain base vectors, the identifier of the space domain base vectors, the number of the frequency domain base vectors, the identifier of the frequency domain base vectors and the initial position of a frequency domain base vector window, so that the base vector parameter information of different CMRs is determined to be the same under the condition that the parameters included in the base vector parameter information of different CMRs are the same.
For example, if the basis vector parameter information includes the number of spatial basis vectors, the labels of the spatial basis vectors, the number of frequency domain basis vectors, and the labels of the frequency domain basis vectors, the fact that the basis vector parameter information of at least two CMRs is the same means that the number of spatial basis vectors, the labels of the spatial basis vectors, the number of frequency domain basis vectors, and the labels of the frequency domain basis vectors included in the basis vector parameter information are all the same. For example, if the basis vector parameter information includes the number of space-domain basis vectors, the number of frequency-domain basis vectors, and the start position of the frequency-domain basis vector window, the same basis vector parameter information for at least two CMRs means that the number of space-domain basis vectors, the number of frequency-domain basis vectors, and the start position of the frequency-domain basis vector window are the same. The present application may also include other scenarios, which are not illustrated herein.
In some embodiments, some of the base vector parameter information of the CMRs may have the same base vector parameter information of some CMRs, or may have the same base vector parameter information of all CMRs, and parameters reported to the network device by the terminal are different for different situations, and each reporting situation is described below.
The first method comprises the following steps: and in the case that at least two CMRs are all the CMRs of the plurality of CMRs, sending first base vector parameter information of a first CMR of the plurality of CMRs to the network equipment.
In this embodiment of the application, if at least two CMRs indicated by the indication information belong to all of the CMRs, the terminal may directly send the first base vector parameter information of the first CMR of the multiple CMRs to the network device, and for the network device, when it is determined that the base vector parameter information of all the CMRs indicated by the indication information is the same, it is determined that all CMRs except the first CMR of the multiple CMRs are the same, and it is default that all CMRs of the multiple CMRs are the same as the first base vector parameter information of the first CMR.
In another expression, when the terminal determines that the basis vector parameter information of all the CMRs in the multiple CMRs is the same, the indication information is used to indicate that the basis vector parameters of the multiple CMRs are the same, the terminal only needs to send one piece of basis vector parameter information, and after receiving the indication information and the basis vector parameter information, the network device can determine that all the CMRs in the multiple CMRs use the same one piece of basis vector parameter information.
For example, the at least two CMRs include CMR1, CMR2, CMR3, and CMR4, and the indication information indicates that the basis vector parameter information of the at least two CMRs is the same, that is, the basis vector parameter information of CMR1, CMR2, CMR3, and CMR4 is the same. The terminal transmits first basis vector parameter information of the CMR1 belonging to the first one of the CMR1, CMR2, CMR3 and CMR4 to the network device, and the basis vector parameter information of the CMR2, CMR3 and CMR4 is identical to the first basis vector parameter information of the CMR 1.
And the second method comprises the following steps: and in the case that the at least two CMRs are partial CMRs of the plurality of CMRs, sending first base vector parameter information of a first CMR of the at least two CMRs to the network equipment, wherein the indication information is also used for indicating identification information of the first CMR.
In this embodiment of the application, if at least two CMRs indicated by the indication information belong to partial CMRs of the multiple CMRs, the terminal needs to send, to the network device, not only the first base vector parameter information of the first CMR of the multiple CMRs, but also needs to send, to the network device, the identification information for indicating the first CMR, so that other CMRs of the at least two CMRs except the first CMR determine which base vector parameter information is the same as the corresponding base vector parameter information of which CMR.
And for the network device, when the network device actually determines that the indication information indicates that the basis vector parameter information of all the CMRs in the plurality of CMRs is the same, the default CMRs except the first CMR in the plurality of CMRs are the same as the first basis vector parameter information of the first CMR.
In another expression, the terminal may send the indication information to the network device when determining that the base vector parameter information of some CMRs in the multiple CMRs is the same, but since the base vector parameter information of all CMRs is not the same, it is necessary to send the identification information of the CMR to indicate which base vector parameter information of the CMR indicated by the identification information is used by the base vector parameter information of other CMRs.
For example, the plurality of CMRs include CMR1, CMR2, CMR3, and CMR4, and at least two CMRs are CMR2, CMR3, and CMR4, respectively, the terminal needs to send base vector parameter information of CMR2 to the network device, and send identification information indicating an identification of CMR2 for CMR3 and CMR4, respectively, where the identification information of CMR2 is used to inform the network device that CMR3 and CMR4 use the base vector parameter information of CMR 2. That is, the basis vector parameter information for CMR2, CMR3 and CMR4 is the same.
In some embodiments, the plurality of CMRs includes at least one group of CMR groups, each group of CMR groups includes at least two CMRs, in which case, the terminal sends the base vector parameter information of the first CMR in each CMR group to the network device, and also sends the identification information of the first CMR in each CMR group for each CMR group, so that the base vector parameter information of other CMRs in each CMR group except the first CMR uses the same base vector parameter information as the first CMR.
For example, the multiple CMRs include CMR1, CMR2, CMR3, and CMR4, and the base vector parameter information of CMR1 and CMR2 are the same, and the base vector parameter information of CMR3 and CMR4 are the same, the terminal needs to send the base vector parameter information of CMR1 and the base vector parameter information of CMR3 to the network device, and also send the identification information of CMR1 for CMR2 and the identification information of CMR3 for CMR4 to the network device, so as to inform the network device that the base vector parameter information of CMR2 multiplexes the base vector parameter information of CMR1, and the base vector parameter information of CMR4 multiplexes the base vector parameter information of CMR 3.
In the scheme provided by the embodiment of the application, the terminal reports different parameters when at least two pieces of CMR base vector parameter information are different, so that the base vector parameter information of a plurality of CMRs is reported to the network equipment, the transmission performance of the TRP is improved on the basis of expanding the mode of reporting the base vector parameter information of the CMRs, and the signaling overhead is saved.
It should be noted that, in the embodiment of the present application, the terminal reports the base vector parameter information of the first CMR of the at least two CMRs as an example for description. In another embodiment, the terminal may also report the base vector parameter information and a CMR group corresponding to the base vector parameter information, where the CMR group includes at least one CMR.
In this embodiment of the present application, since the base vector parameter information of at least two CMRs is the same, the terminal may report the correspondence between the base vector parameter information and the CMR group to the network device, so that the network device may determine the base vector parameter information of each CMR when receiving the correspondence.
In some embodiments, each CMR group includes CMR identification information by which the CMR is indicated.
For example, the CMRs include CMR1, CMR2, CMR3, and CMR4, and if the base vector parameter information of CMR1 and CMR2 is the same and the base vector parameter information of CMR3 and CMR4 is the same, the terminal sends second base vector parameter information to the network device, where the second base vector parameter information corresponds to CMR1 and CMR2, and also sends third base vector parameter information to the network device, where the third base vector parameter information corresponds to CMR3 and CMR4.
The embodiment shown in fig. 3 illustrates whether the base vector parameter information indicating multiple CMRs can be transmitted by the terminal to be the same. And under the condition that the indication information indicates that the base vector parameter information of the CMRs is different, the terminal reports the base vector parameter information of each CMR respectively. Fig. 5 is a flowchart illustrating a parameter indication method according to an exemplary embodiment of the present application, which may be applied to the terminal and the network device shown in fig. 1, and the method includes at least some of the following:
step 501: and the terminal respectively sends the base vector parameter information of each CMR in the CMRs to the network equipment under the condition that the indication information indicates that the base vector parameter information of the CMRs is different.
Step 502: the method comprises the steps that network equipment receives base vector parameter information of each CMR in a plurality of CMRs, wherein the base vector parameter information is sent by a terminal; the base vector parameter information of each of the plurality of CMRs is transmitted by the terminal if the indication information indicates that the base vector parameter information of the plurality of CMRs is different.
In this embodiment of the application, if the terminal determines that the base vector parameter information of the multiple CMRs is different, the terminal needs to indicate that the base vector parameter information of the multiple CMRs is different through the indication information, that is, the base vector parameter of each CMR in the multiple CMRs is different, and the terminal needs to separately send the base vector parameter information of each CMR to the network device, so that the network device determines the base vector parameter information of each CMR respectively.
In the scheme provided by the embodiment of the application, if the terminal determines that the base vector parameter information of the CMRs is different, the terminal indicates that the base vector parameter information of the CMRs is different through the indication information, and reports the base vector parameter information of each CMR respectively, so that the transmission performance of the TRP corresponding to each CMR is ensured, and the reliability of communication is further maintained.
It should be noted that the above embodiments may be split into new embodiments, or combined with other embodiments to form new embodiments, and the combinations between the embodiments are not limited in this application.
Fig. 6 shows a block diagram of a parameter indicating apparatus provided in an exemplary embodiment of the present application, and referring to fig. 6, the apparatus includes:
a sending module 601, configured to send indication information to the network device, where the indication information is used to indicate whether the base vector parameter information of the multiple CMRs is the same.
In some embodiments, the sending module 601 is further configured to send, to the network device, first base vector parameter information if the indication information indicates that the base vector parameter information of at least two CMRs is the same, where the at least two CMRs share the first base vector parameter information.
In some embodiments, the sending module 601 is further configured to send, to the network device, first basis vector parameter information of a first CMR of the at least two CMRs, where the basis vector parameter information of other CMRs of the at least two CMRs except the first CMR is the same as the first basis vector parameter information.
In some embodiments, the sending module 601 is further configured to send, to the network device, the first basis vector parameter information of the first CMR of the multiple CMRs if the at least two CMRs are all CMRs of the multiple CMRs.
In some embodiments, the sending module 601 is further configured to send, to the network device, the first base vector parameter information of a first CMR of the at least two CMRs if the at least two CMRs are partial CMRs of the multiple CMRs, and the indication information is further used to indicate identification information of the first CMR.
In some embodiments, the sending module 601 is further configured to send, to the network device, base vector parameter information of each of the CMRs to the network device, if the indication information indicates that the base vector parameter information of the CMRs is different.
In some embodiments, the plurality of CMRs are different NZP CSI-RS resources, or the plurality of CMRs are different port groups of the same NZP CSI-RS resource, and a port group includes one or more ports.
In some embodiments, the basis vector parameter information comprises at least one of:
the number of space domain basis vectors;
identification of space domain basis vectors;
the number of frequency domain basis vectors;
identification of frequency domain basis vectors;
the start position of the frequency domain basis vector window.
In some embodiments, the indication information is carried in a CSI report.
In some embodiments, the CSI report comprises a first information field and a second information field;
the first information field includes indication information and the second information field includes basis vector parameter information.
It should be noted that, when the apparatus provided in the foregoing embodiment implements the functions thereof, only the division of the functional modules is illustrated, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the internal structure of the apparatus may be divided into different functional modules to implement all or part of the functions described above. In addition, the apparatus and method embodiments provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.
Fig. 7 shows a block diagram of a parameter indicating apparatus provided in an exemplary embodiment of the present application, and referring to fig. 7, the apparatus includes:
a receiving module 701, configured to receive indication information sent by a terminal, where the indication information is used to indicate whether base vector parameter information of multiple CMRs is the same.
In some embodiments, the receiving module 701 is further configured to receive first base vector parameter information sent by the terminal, where the first base vector parameter information is sent by the terminal if the indication information indicates that the base vector parameter information of at least two CMRs is the same, and the at least two CMRs share the first base vector parameter information.
In some embodiments, the receiving module 701 is further configured to receive first base vector parameter information of a first CMR of the at least two CMRs sent by the terminal, and the base vector parameter information of other CMRs of the at least two CMRs except the first CMR is the same as the first base vector parameter information.
In some embodiments, the first basis vector parameter information for a first one of the plurality of CMRs is sent by the terminal if at least two CMRs are all of the plurality of CMRs.
In some embodiments, the first basis vector parameter information of a first one of the at least two CMRs is sent by the terminal if the at least two CMRs are partial CMRs of the plurality of CMRs, and the indication information is further used to indicate identification information of the first CMR.
In some embodiments, the receiving module 701 is further configured to receive base vector parameter information of each of a plurality of CMRs respectively sent by the terminal; the base vector parameter information of each of the plurality of CMRs is transmitted by the terminal if the indication information indicates that the base vector parameter information of the plurality of CMRs is different.
In some embodiments, the plurality of CMRs are different NZP CSI-RS resources, or the plurality of CMRs are different port groups of the same NZP CSI-RS resource, and a port group includes one or more ports.
In some embodiments, the basis vector parameter information comprises at least one of:
the number of space domain basis vectors;
identification of space domain basis vectors;
the number of frequency domain basis vectors;
identification of frequency domain basis vectors;
the start position of the frequency domain basis vector window.
In some embodiments, the indication information is carried in a CSI report.
In some embodiments, the CSI report comprises a first information field and a second information field;
the first information field includes indication information and the second information field includes basis vector parameter information.
It should be noted that, when the apparatus provided in the foregoing embodiment implements the functions thereof, only the division of the functional modules is illustrated, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the internal structure of the apparatus may be divided into different functional modules to implement all or part of the functions described above. In addition, the apparatus and method embodiments provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.
Fig. 8 is a schematic structural diagram of a communication device according to an exemplary embodiment of the present application, where the communication device includes: a processor 801, a receiver 802, a transmitter 803, a memory 804 and a bus 805.
The processor 801 includes one or more processing cores, and the processor 801 executes various functional applications and information processing by running software programs and modules.
The receiver 802 and the transmitter 803 may be implemented as one communication component, which may be a communication chip.
The memory 804 is coupled to the processor 801 by a bus 805.
The memory 804 may be used for storing at least one program code, which the processor 801 is used for executing in order to implement the respective steps of the above described method embodiments.
Further, the communication device may be a terminal or a network device. The memory 804 may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: magnetic or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static Random Access Memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM).
In an exemplary embodiment, a computer readable storage medium is further provided, in which an executable program code is stored, and the executable program code is loaded and executed by a processor to implement the parameter indication method performed by the communication device provided by the above-mentioned various method embodiments.
In an exemplary embodiment, a chip is provided, which comprises programmable logic circuits and/or program instructions for implementing the parameter indication method as provided by the various method embodiments, when the chip is run on a terminal or network device.
In an exemplary embodiment, a communication system is provided, where the communication system includes a terminal and a network device, the terminal is configured to implement the parameter indication method as described above, and the network device is configured to implement the parameter indication method as described above.
In an exemplary embodiment, a computer program product is provided, which, when being executed by a processor of a terminal or a network device, is configured to implement the parameter indication method provided by the above-mentioned various method embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (26)

1. A method of parameter indication, the method being performed by a terminal, the method comprising:
and sending indication information to the network equipment, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not.
2. The method of claim 1, further comprising:
and on the condition that the indication information indicates that the base vector parameter information of at least two CMRs is the same, sending first base vector parameter information to the network equipment, wherein the at least two CMRs share the first base vector parameter information.
3. The method of claim 2, wherein sending first basis vector parameter information to the network device comprises:
and sending first base vector parameter information of a first CMR in the at least two CMRs to the network equipment, wherein the base vector parameter information of other CMRs except the first CMR in the at least two CMRs is the same as the first base vector parameter information.
4. The method of claim 3, wherein sending the first basis vector parameter information for the first of the at least two CMRs to the network device comprises:
and sending the first base vector parameter information of the first CMR of the plurality of CMRs to the network equipment when the at least two CMRs are all the CMRs of the plurality of CMRs.
5. The method of claim 3, wherein sending the first basis vector parameter information for the first of the at least two CMRs to the network device comprises:
and in the case that the at least two CMRs are partial CMRs of the plurality of CMRs, sending first base vector parameter information of a first CMR of the at least two CMRs to the network equipment, wherein the indication information is also used for indicating identification information of the first CMR.
6. The method of claim 1, further comprising:
and under the condition that the indication information indicates that the base vector parameter information of the CMRs is different, respectively sending the base vector parameter information of each CMR in the CMRs to the network equipment.
7. The method according to any of claims 1 to 6, wherein the CMRs are different NZP CSI-RS resources or are different port groups of the same NZP CSI-RS resource, and the port groups comprise one or more ports.
8. The method according to any of claims 1 to 7, wherein the basis vector parameter information comprises at least one of:
the number of space domain basis vectors;
identification of the space domain basis vector;
the number of frequency domain basis vectors;
an identification of the frequency domain basis vectors;
the starting position of the frequency domain basis vector window.
9. The method according to any of claims 1 to 8, wherein said indication information is carried in a CSI report.
10. The method of claim 9, wherein the CSI report comprises a first information field and a second information field;
the first information field includes the indication information and the second information field includes the basis vector parameter information.
11. A method of parameter indication, the method being performed by a network device, the method comprising:
and receiving indication information sent by a terminal, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not.
12. The method of claim 11, further comprising:
receiving first base vector parameter information sent by the terminal, wherein the first base vector parameter information is sent by the terminal under the condition that the indication information indicates that the base vector parameter information of at least two CMRs is the same, and the at least two CMRs share the first base vector parameter information.
13. The method of claim 12, further comprising:
and receiving first base vector parameter information of a first CMR in the at least two CMRs, which is sent by the terminal, wherein the base vector parameter information of other CMRs except the first CMR in the at least two CMRs is the same as the first base vector parameter information.
14. The method of claim 13, wherein the first basis vector parameter information for a first one of the plurality of CMRs is sent by the terminal if the at least two CMRs are all of the plurality of CMRs.
15. The method of claim 13, wherein the first basis vector parameter information of a first CMR of the at least two CMRs is sent by the terminal if the at least two CMRs are partial CMRs of the plurality of CMRs, and wherein the indication information is further used to indicate identification information of the first CMR.
16. The method of claim 11, further comprising:
receiving base vector parameter information of each CMR in the CMRs, which is sent by the terminal respectively; the base vector parameter information of each CMR in the plurality is sent by the terminal if the indication information indicates that the base vector parameter information of the CMRs is different.
17. The method according to any of claims 11 to 16, wherein the plurality of CMRs are different NZP CSI-RS resources or wherein the plurality of CMRs are different port groups of the same NZP CSI-RS resource, wherein the port groups comprise one or more ports.
18. The method according to any of claims 11 to 17, wherein the basis vector parameter information comprises at least one of:
the number of space domain basis vectors;
identification of the space domain basis vector;
the number of frequency domain basis vectors;
an identification of the frequency domain basis vectors;
the starting position of the frequency domain basis vector window.
19. The method according to any of claims 11 to 18, wherein the indication information is carried in a CSI report.
20. The method of claim 19, wherein the CSI report comprises a first information field and a second information field;
the first information field includes the indication information and the second information field includes the basis vector parameter information.
21. An apparatus for indicating a parameter, the apparatus comprising:
and the sending module is used for sending indication information to the network equipment, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not.
22. An apparatus for indicating a parameter, the apparatus comprising:
and the receiving module is used for receiving indication information sent by the terminal, wherein the indication information is used for indicating whether the base vector parameter information of the CMRs is the same or not.
23. A terminal, characterized in that the terminal comprises:
a processor;
a transceiver coupled to the processor;
wherein the processor is configured to load and execute executable instructions to implement the parameter indication method of any of claims 1 to 10.
24. A network device, characterized in that the network device comprises:
a processor;
a transceiver coupled to the processor;
wherein the processor is configured to load and execute executable instructions to implement the parameter indication method of any of claims 11 to 20.
25. A communication system, characterized in that the communication system comprises a terminal and a network device, the terminal is used for implementing the parameter indication method according to any one of claims 1 to 10, and the network device is used for implementing the parameter indication method according to any one of claims 11 to 20.
26. A computer-readable storage medium, having stored therein executable program code, which is loaded and executed by a processor, to implement a parameter indication method as claimed in any one of claims 1 to 20.
CN202280003281.9A 2022-08-26 2022-08-26 Parameter indication method, device, equipment and storage medium Pending CN115669152A (en)

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CN112165439A (en) * 2018-01-25 2021-01-01 华为技术有限公司 Channel estimation method and device
US20220123806A1 (en) * 2019-01-11 2022-04-21 Datang Mobile Communications Equipment Co., Ltd. Methods for sending and receiving channel state information, terminal device and network device
WO2020156136A1 (en) * 2019-02-03 2020-08-06 电信科学技术研究院有限公司 Channel state information reporting method, receiving method, terminal, and network-side device
US12088377B2 (en) * 2019-02-15 2024-09-10 Qualcomm Incorporated Coefficient indication for channel state information
CN111726154B (en) * 2019-03-21 2022-04-01 大唐移动通信设备有限公司 Method and equipment for reporting channel state information
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WO2023133764A1 (en) * 2022-01-13 2023-07-20 北京小米移动软件有限公司 Information reporting method and apparatus, information receiving method and apparatus, device, and storage medium

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