CN117792446A - Parameter sharing method, device, terminal, network equipment and readable storage medium - Google Patents

Parameter sharing method, device, terminal, network equipment and readable storage medium Download PDF

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CN117792446A
CN117792446A CN202211160726.2A CN202211160726A CN117792446A CN 117792446 A CN117792446 A CN 117792446A CN 202211160726 A CN202211160726 A CN 202211160726A CN 117792446 A CN117792446 A CN 117792446A
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indication information
indication
configuration signaling
measurement resources
measurement
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袁江伟
吴昊
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN202211160726.2A priority Critical patent/CN117792446A/en
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Abstract

The application discloses a parameter sharing method, a device, a terminal, network side equipment and a readable storage medium, which belong to the technical field of communication, and the parameter sharing method in the embodiment of the application comprises the following steps: the terminal acquires a first configuration signaling and/or a first rule; and executing Precoding Matrix Indication (PMI) parameter sharing according to the first configuration signaling and/or the first rule.

Description

Parameter sharing method, device, terminal, network equipment and readable storage medium
Technical Field
The application belongs to the technical field of communication, and particularly relates to a parameter sharing method, a device, a terminal, network side equipment and a readable storage medium.
Background
Currently for reference resource configuration for cooperative transmission, one possible way is to configure multiple channel measurement resources (Channel Measurement Resources, CMR), one transmission reference point (Transmission Reference Point, TRP) or one TRP group for each CMR, and the terminal feeds back the associated precoding matrix indication (Precoding matrix indicator, PMI) parameters for each CMR. In this case, since each CMR needs to feed back the associated PMI parameter, a feedback overhead of the PMI parameter will be large.
Disclosure of Invention
The embodiment of the application provides a parameter sharing method, a device, a terminal, network side equipment and a readable storage medium, which can solve the problem of high feedback overhead of the current PMI parameters.
In a first aspect, a method for sharing parameters is provided, including:
the terminal acquires a first configuration signaling and/or a first rule;
and the terminal executes PMI parameter sharing according to the first configuration signaling and/or the first rule.
In a second aspect, a method for sharing parameters is provided, including:
the network side equipment sends a first configuration signaling to the terminal, and the terminal executes PMI parameter sharing according to the first configuration signaling.
In a third aspect, a parameter sharing device is provided, which is applied to a terminal, and includes:
the acquisition module is used for acquiring the first configuration signaling and/or the first rule;
and the execution module is used for executing PMI parameter sharing according to the first configuration signaling and/or the first rule.
In a fourth aspect, a parameter sharing apparatus is provided, which is applied to a network side device, and includes:
and the sending module is used for sending a first configuration signaling to the terminal, and the terminal executes PMI parameter sharing according to the first configuration signaling.
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.
In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to obtain a first configuration signaling and/or a first rule, and execute PMI parameter sharing according to the first configuration signaling and/or the first rule.
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 as described in the second aspect.
In an eighth aspect, a network side device is provided, including a processor and a communication interface, where the communication interface is configured to send a first configuration signaling to a terminal, and the terminal performs PMI parameter sharing according to the first configuration signaling.
In a ninth aspect, there is provided a communication system comprising: a terminal and a network side device, the terminal being operable to perform the steps of the parameter sharing method as described in the first aspect, the network side device being operable to perform the steps of the parameter sharing method as described in the second 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 second 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, implementing the steps of the method according to the first aspect, or implementing the steps of the method according to the second 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 steps of the method as described in the first aspect or to implement the steps of the method as described in the second aspect.
In the embodiment of the application, the terminal can execute PMI parameter sharing according to the acquired first configuration signaling and/or the first rule, so that the feedback PMI parameters can be optimized, and the feedback overhead of the PMI parameters is reduced.
Drawings
Fig. 1 is a block 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 sharing parameters according to an embodiment of the present application;
FIG. 3 is a flowchart of another parameter sharing method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a parameter sharing device according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of another parameter sharing device according to an embodiment of the present disclosure;
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 according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a network side device according to 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-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 Mult)ip 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 Frequency Division Multiple Access, SC-FDMA), and other 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 transmission and reception point (Transmitting Receiving Point, 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.
To facilitate an understanding of the embodiments of the present application, the following is first described.
Coordinated multipoint (Coordinated Multiple Points, coMP) transmission, one of the important technologies for LTE-a. CoMP transmission refers to geographically separated transmission points that cooperatively participate in data transmission for one terminal, such as physical downlink shared channel (Physical downlink shared channel, PDSCH) transmission, or jointly receive data transmitted by one terminal, such as physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) data. Multiple transmission points involved in the cooperation are often referred to as base stations of different cells. Inter-cell interference can be reduced by adopting CoMP transmission, and the spectrum efficiency of cell edge users can be improved.
CoMP technology refers to multi-point transmission/reception technology, where multi-point refers to geographically separated multiple antenna access points. The antenna stations connected by the optical fibers are used for cooperating together to serve the user, and the adjacent antenna base stations or nodes serve one user at the same time, so that the data rate of the user is improved. In a conventional cellular system, each cell base station (eNodeB) only serves a respective cell user, and cell edge users are affected by multiple base stations and severely interfered by each other, so that the system performance is poor. The interference signals can be used as useful signals by the cooperation of the plurality of cell base stations, so that the interference among cells is reduced, and the spectrum utilization rate of the system is improved.
CoMP is essentially a multi-cell multi-user multiple-input multiple-output (Multiple Input Multiple Output, MIMO) system, i.e., a coordinated transmission of multiple users within a coordinated set of cells in a CoMP system. After the MIMO technology is adopted, the channel capacity of the MIMO system is greatly improved compared with that of a single-input single-output (Single Input Single Output, SISO) system. In the traditional MIMO system, only a combination of multiple users and a single cell exists, and no inter-cell cooperation exists. In the CoMP system, the cooperation cells cooperate with each other to share the data information of the user. Both CoMP and MIMO systems eliminate inter-cell or inter-user interference by precoding techniques.
For cooperative transmission resource configuration, the terminal may obtain corresponding cooperative transmission channel state information (Channel State Information, CSI) through a plurality of channel measurement resources, where each channel measurement resource corresponds to one transmission reference point (Transmission Reference Point, TRP), or each channel resource corresponds to a set of TRPs. A set of TRPs may be multiple identically oriented panels of one site.
Optionally, the shared precoding matrix indicator (Precoding matrix indicator, PMI) parameter scenario may include, but is not limited to: 1) An Intra-station (Intra-site) multi-sector multi-TRP scenario, where only frequency domain related parameters among PMI parameters may be shared among a plurality of sectors; 2) The Intra-site multi-panel multi-TRP scene, spatial domain and frequency domain related parameters in PMI parameters can be shared among multiple panels.
In the embodiment of the present application, the coefficient of the PMI parameter includes i 1 And i 2 Wherein i is 1 Includes i 1,1 、i 1,2 、i 1,5 、i 1,6,l 、i 1,7,l 、i 1,8,l ，i 2 Includes i 2,3,l 、i 2,4,l 、i 2,5,l Where l=one or more of 1,2,3,4. If the Rank Indicator (RI) value v is 2, l=1, 2; if RI v is 4, l=1, 2,3,4. Wherein:
i 1,1 for indicating orthogonal discrete fourier transform (Discrete Fourier Transform, DFT) vector group sequence number q 1 ,q 2 ]Wherein q is 1 ∈{0,1,…,O 1 -1}，q 2 ∈{0,1,…,O 2 -1}，O 1 ,O 2 An oversampling factor configured for the network;
i 1,2 for indicating i 1,1 L vector sequence numbers in the indicated orthogonal DFT vector set equal to Wherein N1 and N2 are parameters of port number of network configuration, L is the number of DFT vectors indicated by the network, and can be understood as the number of airspace base vectors, +.>Representing the slave N 1 N 2 The number of combinations of L beams is selected from the individual beams (beams).
i 1,5 For indicating a length of 2M v Starting position M of window of (2) initial The value range is i 1,5 ∈{0,1,…,2M v -1}, wherein M v Representing the number of time domain taps. Note that: exist only in N 3 >19, when N 3 When the temperature is less than or equal to 19, i 1,5 =0 and the terminal does not need to feed back the coefficient.
i 1,6,l M for indicating layer 1 (layerl) feedback v The tap coefficients are N 3 The positions in the tap coefficients are divided into two cases: when N is 3 >19, the value range isWhen N is 3 When the value is less than or equal to 19, the value range is +. >Feedback is provided by way of a combination number.
i 1,7,l For layerl non-zero combination coefficient indication, bit sequence (string), total length 2LM v 。
i 1,8,l For the indication of the strongest coefficient of layerl, the value range is i 1,8,l E {0,1, …,2L-1}; for rank=1 transmission, i 1,8,l Represents the ith 1,8,l A non-zero combination coefficient i for a rank > 1 transmission 1,8,l Represents the ith 1,8,l And coefficients.
i 2,3,l For the amplitude coefficient quantization indication of the two polarizations of layerl, each amplitude coefficient is 4bit string, each bit string corresponds to a quantization value, wherein the amplitude coefficient of the polarization where the strongest coefficient is located is not fed back, and is assumed to be 1.
i 2,4,l For the amplitude coefficient quantization indication of all tap coefficients of layerl, each amplitude coefficient is a bit string sequence of 3 bits, each code point (code point) corresponds to a quantization value, and 2LM is obtained in total v And a magnitude coefficient. Wherein the amplitude coefficient of the strongest coefficient is not fed back, and the rest coefficient only feeds back the amplitude non-zero combined coefficient, so that the number of total feedback coefficients for layerl is K NZ,l -1, wherein K NZ,l Representing the number of non-zero combining coefficients for the layrl amplitude.
i 2,5,l For the phase coefficient quantization indication of all tap coefficients of layerl, each coefficient is bit string of 4 bits, each code point corresponds to a quantization value, and 2LM is obtained in total l And phase coefficients. Wherein the phase coefficient of the strongest coefficient is not fed back, and is assumed to be 0, and the residual coefficient only feeds back the phase coefficient corresponding to the combination coefficient with non-zero amplitude, so that the number of total feedback coefficients for layerl is K NZ,l -1, wherein K NZ,l Representing the number of non-zero combination coefficients of amplitude.
In the embodiment of the present application, the measurement resources may include channel measurement resources.
The parameter sharing method, device, terminal, network side device and readable storage medium provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.
Referring to fig. 2, fig. 2 is a flowchart of a parameter sharing method provided in an embodiment of the present application, where the method is performed by a terminal, and as shown in fig. 2, the method includes the following steps:
step 21: the terminal obtains the first configuration signaling and/or the first rule.
Step 22: and the terminal executes PMI parameter sharing according to the first configuration signaling and/or the first rule.
In this embodiment, the first configuration signaling is used to determine PMI parameter sharing, which may include, but is not limited to, at least one of the following:
measuring configuration signaling of a resource set; for example, the set of measurement resources may be a set of channel measurement resources;
CSI reporting configuration signaling;
codebook configuration signaling;
other newly defined signaling.
In some embodiments, the first configuration signaling is higher layer signaling. For example, the network side device may indicate PMI parameter sharing through higher layer signaling.
In some embodiments, the first rule may be a default rule, or may be a rule that is pre-agreed, or configured by a network, which is not limited.
According to the parameter sharing method, the terminal can execute PMI parameter sharing according to the acquired first configuration signaling and/or the first rule, so that the fed-back PMI parameters can be optimized, and feedback overhead of the PMI parameters is reduced.
In this embodiment of the present application, the sharing domain may be added to the first configuration signaling to indicate the PMI parameter sharing situation, that is, an explicit manner is used to indicate which PMI parameters between which measurement resources of the terminal may be shared. Optionally, the first configuration signaling may include at least one of:
1) A first domain comprising at least one first indication information, each first indication information indicating or associating a plurality of measurement resources, associating the same spatial base vector indication. In this way, it is possible to indicate which measurement resources of the terminal can share the spatial base vector indication.
Here, the first domain may be understood as a shared spatial base vector domain. The first indication information may directly indicate the plurality of measurement resources, or may indirectly indicate the plurality of measurement resources, that is, associate the plurality of measurement resources. For example, if some first indication information indicates a plurality of codebook configuration signaling, each codebook configuration signaling is associated with one measurement resource, the first indication information is associated with a plurality of measurement resources.
In some embodiments, each of the first indication information indicates or is associated with a plurality of measurement resources, which may be selected as a plurality of channel state information reference signals (Channel State Information Reference Signal, CSI-RS), and/or a plurality of measurement port groups of one CSI-RS, etc.
Optionally, when the first configuration signaling includes the first domain, performing PMI parameter sharing according to the first configuration signaling may include: and the terminal feeds back a set of airspace base vector indication aiming at each first indication information indication or a plurality of associated measurement resources. The spatial base vector indication includes, for example, i 1,1 、i 1,2 Etc. Here, one copy refers to a plurality of copies i corresponding to a plurality of measurement resources 1,1 And i 1,2 Can be understood as one part i corresponding to each measurement resource 1,1 And i 1,2 . In this way, the feedback airspace base vector instruction of feedback can be optimized, and the feedback overhead of PMI parameters is reduced.
Optionally, the first indication information may include at least one of:
a resource identification ID;
sequence numbers of corresponding measurement resources in the measurement resource set; for example, the sequence number is an integer from 0 to 3;
sequence numbers corresponding to the codebook configuration signaling in the CSI report configuration signaling;
a resource set identifier;
sequence number of resource set in resource setting signaling;
a resource group identifier;
sequence numbers of corresponding resource groups in the measurement resource set;
a resource port group identifier;
sequence numbers of corresponding resource port groups in measurement resources;
a resource port identification;
and the corresponding resource port measures the serial number in the resource.
Optionally, when the first configuration signaling includes the first domain, the number L of spatial base vectors corresponding to the multiple measurement resources indicated or associated by each first indication information is the same, and/or the antenna port configuration (such as N1, N2) corresponding to the multiple measurement resources indicated or associated by each first indication information is the same, so that it is ensured that one set of spatial base vector indication can be fed back for the multiple measurement resources indicated or associated by each first indication information. The number of airspace base vectors and the antenna port configuration are configured in a network.
Optionally, when the first configuration signaling includes the first domain, if the fourth indication information indicates or the number of spatial base vectors and/or the antenna port configuration corresponding to the associated plurality of measurement resources are different, the fourth indication information is one of at least one first indication information, and the terminal may execute at least one of the following:
(1) The terminal determines that the fourth indication information indicates or the associated plurality of measurement resources do not share the airspace base vector; for example, the terminal determines that the plurality of measurement resources indicated by the fourth indication information cannot share the airspace base vector;
(2) the terminal does not perform PMI updating or feedback aiming at the fourth indication information indication or the associated cooperative transmission of a plurality of measurement resources;
(3) the terminal does not use a plurality of measurement resources indicated or associated by the fourth indication information to acquire the PMI;
(4) the terminal acquires a first airspace base vector according to the maximum value in the number of the airspace base vectors, and feeds back the first airspace base vector, wherein the number of the airspace base vectors is respectively associated with a plurality of measurement resources indicated or associated by fourth indication information; that is, the terminal acquires and feeds back the airspace base vector according to the maximum value l_max among the number L of airspace base vectors associated with the plurality of measurement resources indicated or associated with the fourth indication information; in this way, the network side can be ensured to acquire all beams by acquiring the airspace base vectors according to the maximum value in the airspace base vector quantity and feeding back the airspace base vectors, so that the feedback signaling overhead is reduced; at this time, no matter what indication mode is used by the network, when the parameters of a plurality of shared measurement resources are different, the process can be used for processing;
(5) The terminal determines that the fourth indication information indicates or the associated plurality of measurement resources share the first spatial base vector indication (e.g., i 1,1 ) And does not share a second spatial base vector indication (e.g., i 1,2 ) That is, the terminal determines that the first spatial base vector indication is shared, and only needs to feed back one part, while the second spatial base vector indication is not shared, and needs to feed back multiple parts; the first airspace base vector indicates a sequence number used for indicating an orthogonal Discrete Fourier Transform (DFT) vector group, the second airspace base vector indicates L vector sequence numbers used for indicating the first airspace base vector indicates the orthogonal DFT vector group, and L is the number of DFT vectors indicated by a network.
Optionally, when the first configuration signaling includes a first field, each of the first indication information indicates or associates with a plurality of measurement resources having the same codebook configuration parameter, and different first indication information indicates or associates with a measurement resource independent configuration codebook configuration parameter. That is, all codebook configuration parameters (e.g., parameter combinations, CBSR (codebook subset restriction), etc.) within a shared measurement resource group are the same, and different shared measurement resource groups independently configure parameters. The indication or associated plurality of measurement resources may be selected as a plurality of CSI-RSs, and/or a plurality of measurement port groups of one CSI-RS.
For example: under the condition of configuring 4 measurement resources, assuming that the higher layer signaling NZP-CSI-RS-resource set includes sharedSDFD signaling, the sharedSDFD signaling corresponds to values 02 and 13, wherein 0-3 indicates that the corresponding measurement resources are serial numbers in the measurement resource group, and then indicates that there are 2 shared measurement resource groups, and at this time, the codebook configuration parameter signaling structure may be: twoPMIGroup { CBConfig1, CBConfig2}. Whereas if there is only one shared measurement resource group, the codebook configuration parameter signaling structure is: onePMIGroup { CBConfig1}; if there are three shared measurement resource groups, the codebook configuration parameter signaling structure is: threePMIGroup { CBConfig1, CBConfig2, CBConfig3}. I.e. how many shared measurement resource groups are present, and how many codebook configurations are included in the codebook configuration parameter signaling.
2) And a second domain comprising at least one second indication information, each second indication information indicating or associating a plurality of measurement resources, with the same frequency domain basis vector indication. In this way, it is possible to indicate which measurement resources of the terminal can share the frequency domain basis vector indication.
Here, the second domain may be understood as a shared frequency domain base vector domain. The second indication information may directly indicate the plurality of measurement resources, or may indirectly indicate the plurality of measurement resources, that is, associate the plurality of measurement resources. For example, if some second indication information indicates a plurality of codebook configuration signaling, each codebook configuration signaling being associated with one measurement resource, the second indication information is associated with a plurality of measurement resources.
In some embodiments, each second indication information indicates or is associated with a plurality of measurement resources, which may be selected as a plurality of CSI-RSs, and/or a plurality of measurement port groups of one CSI-RS, etc.
Optionally, when the first configuration signaling includes the second domain, performing PMI parameter sharing according to the first configuration signaling may include: the terminal feeds back a frequency domain base vector indication for each second indication information indication or associated multiple measurement resources. The frequency domain base vector indication comprises i, for example 1,5 、i 1,6,l Etc., with l=1, 2,3,4. Here, one copy refers to a plurality of copies i corresponding to a plurality of measurement resources 1,5 And i 1,6,l Can be understood as one part i corresponding to each measurement resource 1,5 And i 1,6,l . In this way, the feedback airspace base vector instruction of feedback can be optimized, and the feedback overhead of PMI parameters is reduced.
Optionally, the second indication information may include at least one of the following:
a resource identification ID;
sequence numbers of corresponding measurement resources in the measurement resource set; for example, the sequence number is an integer from 0 to 3;
sequence numbers corresponding to the codebook configuration signaling in the CSI report configuration signaling;
a resource set identifier;
sequence number of resource set in resource setting signaling;
a resource group identifier;
Sequence numbers of corresponding resource groups in the measurement resource set;
a resource port group identifier;
sequence numbers of corresponding resource port groups in measurement resources;
a resource port identification;
and the corresponding resource port measures the serial number in the resource.
Optionally, when the first configuration signaling includes the second domain, each second indication information indicates or associates a number M of frequency domain base vectors corresponding to the plurality of measurement resources v The same, thereby ensuring that one set of frequency domain basis vector indications may be fed back for each second indication information indication or associated plurality of measurement resources. The indication or associated plurality of measurement resources may be selected as a plurality of CSI-RSs, and/or a plurality of measurement port groups of one CSI-RS.
Optionally, when the first configuration signaling includes the second domain, if the fifth indication information indicates or associates the number M of frequency domain base vectors corresponding to the plurality of measurement resources v Different, the fifth indication information is one of at least one second indication information, and the terminal may perform at least one of the following:
(1) the terminal determines that the fifth indication information indicates or associates a plurality of measurement resources not to share a frequency domain base vector; that is, the terminal determines that the fifth indication information indicates or the associated plurality of measurement resources cannot share the frequency domain base vector;
(2) The terminal does not perform PMI update or feedback for the cooperative transmission of the fifth indication information indication or the associated multiple measurement resources;
(3) the terminal does not use a plurality of measurement resources indicated or associated by the fifth indication information to acquire the PMI;
(4) the terminal acquires a first frequency domain base vector according to the maximum value in the number of the plurality of frequency domain base vectors, and feeds back the first frequency domain base vector, wherein the number of the plurality of frequency domain base vectors is respectively associated with a plurality of measurement resources indicated or associated by the fifth indication information; that is, the terminal is responsive to the plurality of measurement resources indicated or associated with the fifth indication informationNumber M of concatenated multiple frequency domain basis vectors v Maximum value M of (2) v,max Acquiring a frequency domain base vector and feeding back the frequency domain base vector; in this way, the frequency domain base vectors are acquired according to the maximum value in the number of the frequency domain base vectors and fed back, so that the network side can be ensured to acquire all beams, and the feedback signaling overhead is reduced. This process can be used at this time when the parameters of the plurality of shared measurement resources are different, regardless of the indication mode used by the network.
3) And a third domain, wherein the third domain comprises at least one third indication information, each third indication information indicates or is associated with a plurality of measurement resources, and the same spatial domain base vector indication and frequency domain base vector indication are associated. In this way, it is possible to indicate which measurement resources of the terminal can share the spatial base vector indication and the frequency domain base vector indication.
Here, the third domain may be understood as sharing the spatial domain and the frequency domain base vector domain. The third indication information may directly indicate the plurality of measurement resources, or may indirectly indicate the plurality of measurement resources, that is, associate the plurality of measurement resources. For example, if a certain third indication information indicates a plurality of codebook configuration signaling, each codebook configuration signaling is associated with one measurement resource, the third indication information is associated with a plurality of measurement resources.
In some embodiments, each third indication information indicates or is associated with a plurality of measurement resources, which may be selected as a plurality of CSI-RSs, and/or a plurality of measurement port groups of one CSI-RS, etc.
Optionally, when the first configuration signaling includes the third domain, performing PMI parameter sharing according to the first configuration signaling may include: the terminal feeds back at least one of the following for each of the third indication information indicating or associated plurality of measurement resources: a set of spatial basis vector indicators (e.g., i 1,1 、i 1,2 ) A share of the frequency domain basis vector indication (e.g., i 1,5 、i 1,6,l ) A share of non-zero coefficient indications (e.g., i 1,7,l ) A set of strongest coefficient indications (e.g., i 1,8,l ). In this way, the feedback space domain and frequency domain base vector instruction of the feedback can be optimized, and the feedback overhead of the PMI parameter is reduced.
Optionally, the third indication information may include at least one of the following:
A resource identification ID;
sequence numbers of corresponding measurement resources in the measurement resource set; for example, the sequence number is an integer from 0 to 3;
sequence numbers corresponding to the codebook configuration signaling in the CSI report configuration signaling;
a resource set identifier;
sequence number of resource set in resource setting signaling;
a resource group identifier;
sequence numbers of corresponding resource groups in the measurement resource set;
a resource port group identifier;
sequence numbers of corresponding resource port groups in measurement resources;
a resource port identification;
and the corresponding resource port measures the serial number in the resource.
Optionally, when the first configuration signaling includes a third domain, each third indication information indicates or associates a number M of frequency domain base vectors corresponding to the plurality of measurement resources v And the number L of the airspace base vectors is the same, and/or the antenna port configuration (such as N1 and N2) corresponding to the multiple measurement resources indicated or associated by each third indication information is the same, so that one base vector indication can be fed back for the multiple measurement resources indicated or associated by each third indication information.
Optionally, when the first configuration signaling includes the third domain and the sixth indication information is one of at least one third indication information, if the number L of spatial base vectors corresponding to the plurality of measurement resources indicated or associated by the sixth indication information is different, the terminal may execute at least one of the following:
(1) The terminal determines that the sixth indication information indicates that the determined plurality of measurement resources do not share an airspace base vector; that is, the terminal determines that the sixth indication information indicates or the associated plurality of measurement resources cannot share the airspace base vector;
(2) the terminal does not perform PMI updating or feedback aiming at the cooperative transmission of a plurality of measurement resources indicated or associated by the sixth indication information;
(3) the terminal does not use a plurality of measurement resources indicated or associated by the sixth indication information to acquire the PMI;
(4) the terminal acquires a first airspace base vector according to the maximum value in the number of the airspace base vectors, and feeds back the first airspace base vector, wherein the number of the airspace base vectors is respectively associated with a plurality of measurement resources indicated or associated by sixth indication information; that is, the terminal acquires and feeds back the airspace base vector according to the maximum value l_max among the number L of airspace base vectors associated with the plurality of measurement resources indicated or associated with the sixth indication information; in this way, the network side can be ensured to acquire all beams by acquiring the airspace base vectors according to the maximum value in the airspace base vector quantity and feeding back the airspace base vectors, so that the feedback signaling overhead is reduced;
(5) the terminal determines that the sixth indication information indicates or that the associated plurality of measurement resources share a first spatial basis vector indication (e.g., i 1,1 ) And does not share a second spatial base vector indication (e.g., i 1,2 ) That is, the terminal determines that the first spatial base vector indication is shared, and only needs to feed back one part, while the second spatial base vector indication is not shared, and needs to feed back multiple parts; the first airspace base vector indicates a sequence number used for indicating an orthogonal Discrete Fourier Transform (DFT) vector group, the second airspace base vector indicates L vector sequence numbers used for indicating the first airspace base vector indicates the orthogonal DFT vector group, and L is the number of DFT vectors indicated by a network.
And/or, if the number of frequency domain base vectors M corresponding to the plurality of measurement resources indicated by the sixth indication information v Different, the terminal may perform at least one of:
(1) the terminal determines that the sixth indication information indicates or the associated plurality of measurement resources do not share the frequency domain base vector; for example, the terminal determines that the sixth indication information indicates or the associated plurality of measurement resources cannot share the frequency domain base vector;
(2) the terminal does not perform PMI updating or feedback aiming at the cooperative transmission of a plurality of measurement resources indicated or associated by the sixth indication information;
(3) the terminal does not use a plurality of measurement resources indicated or associated by the sixth indication information to acquire the PMI;
(4) The terminal acquires a first frequency domain base vector according to the maximum value in the number of the plurality of frequency domain base vectors, and feeds back the first frequency domain base vector, wherein the number of the plurality of frequency domain base vectors is respectively associated with a plurality of measurement resources indicated or associated by sixth indication information; that is, the terminal determines the number M of the plurality of frequency domain base vectors associated with the plurality of measurement resources indicated or associated with the sixth indication information v Maximum value M of (2) v,max Acquiring a frequency domain base vector and feeding back the frequency domain base vector; in this way, the frequency domain base vectors are acquired according to the maximum value in the number of the frequency domain base vectors and fed back, so that the network side can be ensured to acquire all beams, and the feedback signaling overhead is reduced.
Optionally, when the first configuration signaling includes both the first domain and the second domain, performing PMI parameter sharing according to the first configuration signaling may include: the terminal feeds back at least one of the following for a plurality of measurement resources indicated/associated with each first indication information or each second indication information: a set of spatial basis vector indicators (e.g., i 1,1 、i 1,2 ) A share of the frequency domain basis vector indication (e.g., i 1,5 、i 1,6,l ) A share of non-zero coefficient indications (e.g., i 1,7,l ) A set of strongest coefficient indications (e.g., i 1,8,l ). In this way, the feedback space domain and frequency domain base vector instruction of the feedback can be optimized, and the feedback overhead of the PMI parameter is reduced.
Optionally, when the first configuration signaling includes both the first domain and the second domain, the content indicated by the first indication information and the second indication information may be any one of the following: the content indicated by the first indication information is the same as the content indicated by the second indication information, the content indicated by the first indication information is all included in the content indicated by the second indication information, and the content indicated by the second indication information is all included in the content indicated by the first indication information.
For example: in the case of configuring 4 measurement resources, it is assumed that the higher layer signaling NZP-CSI-RS-resource set includes sharedSD signaling and sharedFD signaling, where the value corresponding to the sharedSD signaling should be the same as the value corresponding to the sharedFD signaling, for example, the values are 02 and 13, where 0-3 indicates the sequence number of the corresponding measurement resource in the measurement resource group, and then indicates that there are 2 shared measurement resource groups.
For example: under the condition of configuring 6 measurement resources, the higher layer signaling NZP-CSI-RS-resource set comprises sharedSD signaling and sharedFD signaling, the sharedSD signaling corresponds to 02 and 13, and the sharedFD signaling corresponds to 02 and 13 and 45, wherein 0-5 indicates that the serial number of the corresponding measurement resource in the measurement resource group, and then the shared measurement resource group is 2.
In the embodiment of the present application, when the first configuration signaling includes CSI reporting configuration signaling, the PMI parameter sharing condition may be indicated by configuring an association relationship of codebook configuration signaling. Optionally, the CSI reporting configuration signaling may include a fourth domain, where the fourth domain includes at least one seventh indication information, where each seventh indication information is used to indicate or associate a plurality of codebook configuration signaling, and each seventh indication information indicates or associates a plurality of measurement resources associated with the plurality of codebook configuration signaling, and associates the same at least one of the following: spatial base vector indication, frequency domain base vector indication, non-zero coefficient indication, strongest coefficient indication. Here, the fourth domain may be understood as a shared spatial base vector domain.
For example, multiple codebook configuration signaling is configured in the CSI report configuration signaling, each codebook configuration signaling is associated with a channel measurement resource, and the PMI parameter sharing situation can be indicated by adding a fourth field in the CSI report configuration signaling, where the fourth field includes at most 4 pieces of seventh indication information, and the seventh indication information may be a sequence number of the codebook configuration signaling in the CSI report configuration signaling (that is, a sequence number indicating not a measurement resource sequence number but a sequence number of the codebook configuration signaling), where the sequence number is an integer such as 0 to 3, and multiple measurement resources associated with multiple codebook configuration signaling indicated by each seventh indication information are associated with the same at least one of the following: spatial base vector indication, frequency domain base vector indication, non-zero coefficient indication, strongest coefficient indication.
In the embodiment of the application, when the first configuration signaling includes codebook configuration signaling, the PMI parameter sharing condition may be indicated by codebook subset restriction (codebook subset restriction) information configured in the codebook configuration signaling. Optionally, if the codebook configuration signaling includes at least one port configuration indication information, each port configuration indication information indicates codebook subset restriction information (such as a bit string) under the corresponding port configuration, and each port configuration indication information is associated with one measurement resource, any one of the following is satisfied:
for a plurality of measurement resources associated with the same port configuration indication information, associating the same base vector indication;
for a plurality of measurement resources associated with the same codebook subset restriction information, associating the same base vector indication;
for a plurality of measurement resources associated with the same port configuration indication information and codebook subset restriction information, the same base vector indication is associated.
It should be noted that the above base vector indication may be selected as at least one of the following: airspace base vector indication (i) 1,1 、i 1,2 ) Frequency domain basis vector indication (i 1,5 、i 1,6,l ) Non-zero coefficient indication i 1,7,l And the strongest coefficient indicates i 1,8,l 。
Note that the same codebook subset restriction information may be the same restriction information length, the same restriction information, or both the restriction information length and the restriction information.
Optionally, when each port configuration indication information is associated with one measurement resource, each port configuration indication information may be sequentially associated with a corresponding measurement resource according to a measurement resource configuration sequence, so as to reduce signaling to indicate an association relationship between the port configuration indication information and the measurement resource.
Optionally, the port configuration indication information is used to indicate at least one of the following under the corresponding port configuration: port configuration information of each panel, panel number; wherein the number of panels may be equal to 1. Or, the port configuration indication information is used to indicate port configuration information.
For example, codebook configuration signaling (codebook) includes at most 4 port configuration indication information, each port configuration indication information indicatingCodebook subset restriction information (such as a bit string) under the corresponding port configuration is shown, wherein each port configuration indication information is sequentially associated to the corresponding measurement resources according to the measurement resource configuration sequence; for example, 4 measurement resources are associated in CSI-ReportConfig, 4 port configuration indication information in codebook is related to the configuration order of the 4 measurement resources, i.e. the first port configuration indication information is associated with the first measurement resource, the second port configuration indication information is associated with the second measurement resource, and so on. If codebook subset restriction information associated with two measurement resources is the same, it means that the two channel measurement resources can share frequency domain base vector indication information (i 1,5 、i 1,6,l ) Alternatively, the shared spatial base vector indicates (i 1,1 、i 1,2 ) Alternatively, the shared spatial base vector indicates (i 1,1 、i 1,2 ) Frequency domain basis vector indication (i 1,5 、i 1,6,l ) Non-zero coefficient indication i 1,7,l The strongest coefficient indicates i 1,8,l 。
As another example, suppose codebook subset restriction in the network configuration codebook configuration signaling is:
the first port configuration indication information four-two-one corresponds to the first channel measurement resource, and is associated with 4 measurement panels, and each panel has 2 ports, which indicates that the length of codebook subset restriction information (i.e. bit string) under the corresponding port configuration is 64;
the second port configuration indication information one-four-two corresponds to the second channel measurement resource, and is associated with 1 measurement panel, and each panel has 4 ports, which indicates that the length of codebook subset restriction information (i.e. bit string) under the corresponding port configuration is 75;
the third port configuration indication information one-light-one corresponds to a third channel measurement resource and is associated with 1 measurement panel, and each panel has 8 ports, which indicates that the length of codebook subset restriction information (i.e. bit string) under the corresponding port configuration is 64;
the fourth port configuration indication information one-light-one corresponds to the fourth channel measurement resource, and is associated with 1 measurement panel, and each panel has 8 ports, which indicates that the length of codebook subset restriction information (i.e. bit string) under the corresponding port configuration is 64.
Then: for the same port configuration one-light-one, if the associated bit string length is the same or the content is the same, it means that the corresponding third channel measurement resource and fourth channel measurement resource may share the frequency domain base vector indication information (i 1,5 、i 1,6,l ) Alternatively, the shared spatial base vector indicates (i 1,1 、i 1,2 ) Alternatively, the shared spatial base vector indicates (i 1,1 、i 1,2 ) Frequency domain basis vector indication (i 1,5 、i 1,6,l ) Non-zero coefficient indication i 1,7,l The strongest coefficient indicates i 1,8,l . Whereas for port configuration four-two-one, 4 measurement panels may share the frequency domain base vector indication (i 1,5 、i 1,6,l ) Non-zero coefficient indication i 1,7,l The strongest coefficient indicates i 1,8,l 。
In some embodiments, taking configuration signaling such as NZP-CSI-RS-resource set, indicating the PMI parameter sharing case as an example, assuming that the NZP-CSI-RS-resource set includes a first field, where the first field includes first indication information such as sharedSD signaling, a value corresponding to the sharedSD signaling may be {01, 02, 03, 12, 13, 23, 012, 013, 023, 0123}, where 0-3 represents a sequence number of a corresponding measurement resource in the measurement resource set, then: if the value corresponding to the sharedSD signaling is 02, the airspace base vector indication (i) in the PMI parameter associated with the 1 st measurement resource and the 3 rd measurement resource configured in the measurement resource set is indicated 1,1 、i 1,2 ) The same is adopted, and only one airspace base vector indication needs to be fed back for the 1 st measurement resource and the 3 rd measurement resource; and if the value corresponding to the sharedSD signaling is 02 and 13, the spatial base vector indication (i) in the PMI parameter associated with the 1 st measurement resource and the 3 rd measurement resource configured in the measurement resource set is indicated 1,1 、i 1,2 ) Is identical, and the spatial base vector indication (i) in PMI parameters associated with the 2 nd measurement resource and the 4 th measurement resource configured in the measurement resource set 1,1 、i 1,2 ) Are identical; at this time, for the 1 st measurement resource and the 3 rd measurement resource, only one airspace base vector instruction needs to be fed back; for the 2 nd measurement resource and the 4 th measurement resource, only one airspace base vector indication needs to be fed back. Specifically, for measurement resources that are not associated with sharedSD signaling, the terminal needs to feed back the airspace base vector indication in the PMI parameter associated with the measurement resources respectively.
In some embodiments, taking an example of indicating that the PMI parameter is shared by using configuration signaling of the measurement resource set, such as NZP-CSI-RS-resource eset, assuming that the NZP-CSI-RS-resource eset includes a second domain, where the second domain includes second indication information, such as sharedFD signaling, a value corresponding to the sharedFD signaling may be {01, 02, 03, 12, 13, 23, 012, 013, 023, 0123}, where 0-3 represents a sequence number of a corresponding measurement resource in the measurement resource set, then: if the value corresponding to the sharedFD signaling is 02, the frequency domain base vector indication (i) in the PMI parameter associated with the 1 st measurement resource and the 3 rd measurement resource configured in the measurement resource set is indicated 1,5 、i 1,6,l ) The same is adopted, and only one frequency domain base vector instruction needs to be fed back for the 1 st measurement resource and the 3 rd measurement resource; if the value corresponding to the sharedFD signaling is 02 and 13, the frequency domain base vector indication (i) in the PMI parameter associated with the 1 st measurement resource and the 3 rd measurement resource configured in the measurement resource set is indicated 1,5 、i 1,6,l ) Is identical, and the frequency domain base vector indication (i) in the PMI parameter associated with the 2 nd measurement resource and the 4 th measurement resource configured in the measurement resource set 1,5 、i 1,6,l ) Are identical; at this time, only one frequency domain base vector instruction needs to be fed back for the 1 st measurement resource and the 3 rd measurement resource; for the 2 nd measurement resource and the 4 th measurement resource, only one frequency domain base vector indication needs to be fed back. Specifically, for measurement resources that are not associated with sharedFD signaling, the terminal needs to feed back frequency domain base vector indications in its associated PMI parameters respectively.
In some embodiments, PM is indicated with configuration signaling, such as NZP-CSI-RS-resource set, using a set of measurement resourcesFor example, assuming that the NZP-CSI-RS-resource set includes a third field, where the third field includes third indication information, such as sharedSDFD signaling, a value corresponding to the sharedSDFD signaling may be {01, 02, 03, 12, 13, 23, 012, 013, 023, 0123}, where 0-3 indicates a sequence number of a corresponding measurement resource in the measurement resource set, then: if the value corresponding to the sharedSDFD signaling is 02, the airspace base vector indication (i) in the PMI parameter associated with the 1 st measurement resource and the 3 rd measurement resource configured in the measurement resource set is indicated 1,1 、i 1,2 ) And frequency domain basis vector indication (i 1,5 、i 1,6,l ) Is identical with non-zero coefficient indicating i 1,7,l And the strongest coefficient indicates i 1,8,l The same applies to the above; at this time, for the 1 st measurement resource and the 3 rd measurement resource, only one part of airspace base vector indication, one part of frequency domain base vector indication, one part of non-zero coefficient indication and one part of strongest coefficient indication need to be fed back; and if the value corresponding to the sharedSDFD signaling is 02 and 13, the spatial vector indication (i) in the PMI parameter associated with the 1 st measurement resource and the 3 rd measurement resource configured in the measurement resource set is indicated 1,1 、i 1,2 ) And frequency domain basis vector indication (i 1,5 、i 1,6,l ) Is identical, and the spatial base vector indication (i) in PMI parameters associated with the 2 nd measurement resource and the 4 th measurement resource configured in the measurement resource set 1,1 、i 1,2 ) And frequency domain basis vector indication (i 1,5 、i 1,6,l ) Is identical with non-zero coefficient indicating i 1,7,l And the strongest coefficient indicates i 1,8,l The same applies to the above; at this time, for the 1 st measurement resource and the 3 rd measurement resource, only one part of airspace base vector indication, one part of frequency domain base vector indication, one part of non-zero coefficient indication and one part of strongest coefficient indication need to be fed back; for the 2 nd measurement resource and the 4 th measurement resource, only one part of airspace base vector indication, one part of frequency domain base vector indication, one part of non-zero coefficient indication and one part of strongest coefficient indication need to be fed back. Specifically, for measurement resources that are not associated with sharedSDFD signaling, the terminals need to feed back their PMI parameters separately.
Some embodimentsTaking configuration signaling such as NZP-CSI-RS-resource set using a measurement resource set to indicate the PMI parameter sharing situation as an example, assuming that the NZP-CSI-RS-resource set includes a first field, where the first field includes first indication information such as sharedSD signaling, a value corresponding to the sharedSD signaling may be {01, 02, 03, 12, 13, 23, 012, 013, 023, 0123}, where 0-3 represents a sequence number of a corresponding measurement resource in the measurement resource set, then: if the value corresponding to the sharedSD signaling is 02 and 13, the airspace base vector indication (i) in the PMI parameter associated with the 1 st measurement resource and the 3 rd measurement resource configured in the measurement resource set is indicated 1,1 、i 1,2 ) Is identical, and the spatial base vector indication (i) in PMI parameters associated with the 2 nd measurement resource and the 4 th measurement resource configured in the measurement resource set 1,1 、i 1,2 ) Are identical; at this time, assuming that the NZP-CSI-RS-resource set further includes a second field, where the second field includes second indication information such as sharedFD signaling, the value corresponding to the sharedFD signaling may be {01, 02, 03, 12, 13, 23, 012, 013, 023, 0123}, if the value corresponding to the sharedFD signaling is 02 and 13, the frequency domain base vector indication (i) in the PMI parameter associated with the 1 st measurement resource and the 3 rd measurement resource configured in the measurement resource set is indicated 1,5 、i 1,6,l ) Is identical, and the frequency domain base vector indication (i) in the PMI parameter associated with the 2 nd measurement resource and the 4 th measurement resource configured in the measurement resource set 1,5 、i 1,6,l ) Are identical.
Since the 1 st measurement resource and the 3 rd measurement resource configured in the measurement resource set and the 2 nd measurement resource and the 4 th measurement resource configured in the measurement resource set coexist in the sharedSD signaling and the sharedFD signaling, the strongest coefficient indication and the non-zero coefficient indication in the PMI parameters associated with the 1 st measurement resource and the 3 rd measurement resource configured are the same, and the strongest coefficient indication and the non-zero coefficient indication in the PMI parameters associated with the 2 nd measurement resource and the 4 th measurement resource configured are the same.
For the 1 st measurement resource and the 3 rd measurement resource, only one airspace base vector index needs to be fed backIndication (e.g. i 1,1 、i 1,2 ) A share of the frequency domain basis vector indication (e.g., i 1,5 、i 1,6,l ) A share of non-zero coefficient indications (e.g., i 1,7,l ) A set of strongest coefficient indications (e.g., i 1,8,l ) The preparation method is finished; for the 2 nd measurement resource and the 4 th measurement resource, only one space base vector indication (i 1,1 、i 1,2 ) A share of the frequency domain basis vector indication (e.g., i 1,5 、i 1,6,l ) A share of non-zero coefficient indications (e.g., i 1,7,l ) A set of strongest coefficient indications (e.g., i 1,8,l ). Specifically, for measurement resources that are not associated with sharedSD signaling or sharedFD signaling, the terminal needs to feed back PMI parameter indications associated with the measurement resources respectively. In some embodiments, taking CSI report configuration signaling such as CSI-ReportConfig, indicating that PMI parameters are shared as an example, assuming that multiple codebooks are configured in CSI-ReportConfig signaling, each codebook is associated with one measurement resource, CSI-ReportConfig includes a first field, where the first field includes first indication information such as sharedSD signaling, where the value corresponding to sharedSD signaling may be {01, 02, 03, 12, 13, 23, 012, 013, 023, 0123}, where 0-3 indicates the number of corresponding codebooks in all codebooks, then: if the value corresponding to the sharedSD signaling is 02 and 13, the spatial vector indication (i) in PMI parameters associated with the 1 st and 3 rd codebook Config associated measurement resources configured in the measurement resource set 1,1 、i 1,2 ) Is identical, and the space base vector indication (i) in the PMI parameter associated with the 2 nd and 4 th codebook Config-associated measurement resources configured in the measurement resource set 1,1 、i 1,2 ) Are identical; at this time, only one airspace base vector instruction needs to be fed back for the measurement resources associated with the 1 st codebook Config and the measurement resources associated with the 3 rd codebook Config; for the measurement resources associated with the 2 nd codebook Config and the measurement resources associated with the 4 th codebook Config, only one airspace base vector instruction needs to be fed back. Specifically, for measurements not associated with sharedSD signalingAnd the terminal needs to feed back airspace base vector indication in the associated PMI parameters respectively for measuring resources.
In some embodiments, taking CSI report configuration signaling such as CSI-ReportConfig, indicating that PMI parameters are shared as an example, assuming that multiple codebooks are configured in CSI-ReportConfig signaling, each codebook is associated with one measurement resource, CSI-ReportConfig includes a second field, where the second field includes second indication information such as sharedFD signaling, where the value corresponding to sharedFD signaling may be {01, 02, 03, 12, 13, 23, 012, 013, 023, 0123}, where 0-3 represents the sequence number of the corresponding codebook in all codebooks, then: if the value corresponding to the sharedFD signaling is 02 and 13, the frequency domain base vector indication (i) in the PMI parameter associated with the 1 st and 3 rd codebook Config related measurement resources configured in the measurement resource set 1,5 、i 1,6,l ) Is identical, and the frequency domain base vector indication (i) in the PMI parameter associated with the 2 nd and 4 th codebook Config-associated measurement resources configured in the measurement resource set 1,5 、i 1,6,l ) The same is true, at this time, only one frequency domain base vector instruction needs to be fed back for the measurement resources associated with the 1 st codebook Config and the measurement resources associated with the 3 rd codebook Config; for the measurement resources associated with the 2 nd codebook Config and the measurement resources associated with the 4 th codebook Config, only one frequency domain base vector instruction needs to be fed back. Specifically, for measurement resources that are not associated with sharedFD signaling, the terminal needs to feed back the airspace base vector indication in its associated PMI parameters respectively.
In some embodiments, taking CSI report configuration signaling such as CSI-ReportConfig, indicating PMI parameter sharing as an example, assume that multiple codebooks are configured in CSI-ReportConfig signaling, each codebook being associated with a measurement resource, CSI-ReportConfig includes a third field including third indication information such as sharedSDFD signaling, where the value corresponding to sharedSDFD signaling may be {01, 02, 03, 12, 13, 23, 012, 013, 023, 0123}, where 0-3 represents the value corresponding to c Sequence number of the codebook config in all codebook config, then: if the value corresponding to the sharedSDFD signaling is 02 and 13, the spatial vector indication (i) in PMI parameters associated with the 1 st and 3 rd codebook Config related measurement resources configured in the measurement resource set 1,1 、i 1,2 ) And frequency domain basis vector indication (i 1,5 、i 1,6,l ) Is identical, and the space base vector indication (i) in the PMI parameter associated with the 2 nd and 4 th codebook Config-associated measurement resources configured in the measurement resource set 1,1 、i 1,2 ) And frequency domain basis vector indication (i 1,5 、i 1,6,l ) Is identical with non-zero coefficient indicating i 1,7,l And the strongest coefficient indicates i 1,8,l The same applies to the above; at this time, for the measurement resource associated with the 1 st codebook Config and the measurement resource associated with the 3 rd codebook Config, only one part of airspace base vector indication, one part of frequency domain base vector indication, one part of non-zero coefficient indication and one part of strongest coefficient indication need to be fed back; for the measurement resources associated with the 2 nd codebook Config and the measurement resources associated with the 4 th codebook Config, only one part of airspace base vector indication, one part of frequency domain base vector indication, one part of non-zero coefficient indication and one part of strongest coefficient indication need to be fed back. Specifically, for measurement resources that are not associated with sharedSDFD signaling, the terminals need to feed back their PMI parameters separately.
It should be noted that, for the above-mentioned shared signaling, namely sharedSD signaling, sharedFD signaling and/or sharedSDFD signaling, there may be one or more; when there are multiple measurement resources, the terminal needs to feed back its complete PMI parameters for measurement resources not associated with any shared signaling, and cannot share the PMI parameters associated with other measurement resources.
The above embodiments are described by taking the configuration signaling of the measurement resource set and the CSI reporting configuration signaling as examples, but the application is not limited thereto, and the codebook configuration signaling may be used to indicate the PMI parameter sharing situation, and the specific indication manner is similar and will not be repeated here.
In this embodiment of the present application, besides the foregoing explicit manner of indicating the PMI parameter sharing situation may also be used to indicate the PMI parameter sharing situation in an implicit manner, that is, the PMI parameter sharing situation is implicitly indicated by the first rule. The first rule may include at least one of:
(1) Partial parameters in PMI parameters associated with measurement resources associated with the same codebook configuration signaling can be shared, namely only one part of partial parameters are fed back, so that feedback overhead is reduced.
Optionally, the above partial parameters may include, but are not limited to, at least one of: spatial base vector indication, frequency domain base vector indication, non-zero coefficient indication, strongest coefficient indication, etc.
For example, frequency domain base vector indication (i 1,5 、i 1,6,l )。
For another example, the spatial base vector indication (i 1,1 、i 1,2 ) Frequency domain basis vector indication (i 1,5 、i 1,6,l ) Non-zero coefficient indication i 1,7,l The strongest coefficient indicates i 1,8,l 。
In some embodiments, if the higher layer signaling CSI-ReportConfig contains a plurality of codebook configuration signaling codebook configs, and n (n is greater than 1) of the plurality of channel measurement resources associated with CSI-ReportConfig are associated to one codebook config, then the frequency domain base vector indication information (i 1,5 、i 1,6,l ) May be shared.
(2) If a port in one measurement resource corresponds to multiple panels (panels) or TRPs, part of the PMI parameters are shared among the panels or TRPs, that is, only one part of the PMI parameters are fed back, so that the feedback overhead is reduced.
Optionally, the above partial parameters may include, but are not limited to, at least one of: spatial base vector indication, frequency domain base vector indication, non-zero coefficient indication, strongest coefficient indication, etc.
For example, the spatial base vector indication (i 1,1 、i 1,2 ) Frequency domain basis vector indication (i 1,5 、i 1,6,l ) Non-ferrous metalZero coefficient indication i 1,7,l The strongest coefficient indicates i 1,8,l 。
In some embodiments, if a port configuration in the higher layer signaling codebook is configured as (ng, n1, n 2), if ng >1 (i.e., the number of associated panels is greater than 1) and the port configuration is associated with one channel measurement resource, then ng panels in the channel measurement resource may share at least one of: shared airspace base vector indication (i) 1,1 、i 1,2 ) Frequency domain basis vector indication (i 1,5 、i 1,6,l ) Non-zero coefficient indication i 1,7,l And the strongest coefficient indicates i 1,8,l 。
(3) When a network configures a plurality of codebook configuration signaling, each codebook configuration signaling is associated with one channel measurement resource, if port configuration indication information in a first codebook configuration signaling indicates that a first measurement resource is associated with a plurality of panels or TRPs, sharing part of PMI parameters among a plurality of groups of ports in the first measurement resource, namely sharing part of PMI parameters among the plurality of panels or TRPs associated with the first measurement resource; the first codebook configuration signaling is one of the plurality of codebook configuration signaling.
Optionally, the above partial parameters may include, but are not limited to, at least one of: spatial base vector indication, frequency domain base vector indication, non-zero coefficient indication, strongest coefficient indication, etc.
For example, the spatial base vector indication (i 1,1 、i 1,2 ) Frequency domain basis vector indication (i 1,5 、i 1,6,l ) Non-zero coefficient indication i 1,7,l And/or the strongest coefficient indicates i 1,8,l 。
(4) When a network configures one codebook configuration signaling, the one codebook configuration signaling comprises a plurality of codebook subset restriction information, each codebook subset restriction information is associated with one measurement resource, if port configuration indication information in the one codebook configuration signaling indicates that a second measurement resource is associated with a plurality of panels or TRPs, partial parameters in PMI parameters are shared among a plurality of groups of ports in the second measurement resource, namely partial parameters in PMI parameters are shared among a plurality of panels or TRPs associated with the second measurement resource.
Optionally, the above partial parameters may include, but are not limited to, at least one of: spatial base vector indication, frequency domain base vector indication, non-zero coefficient indication, strongest coefficient indication, etc.
For example, the spatial base vector indication (i 1,1 、i 1,2 ) Frequency domain basis vector indication (i 1,5 、i 1,6,l ) Non-zero coefficient indication i 1,7,l And/or the strongest coefficient indicates i 1,8,l 。
Referring to fig. 3, fig. 3 is a flowchart of a parameter sharing method provided in an embodiment of the present application, where the method is performed by a network side device, as shown in fig. 3, and the method includes the following steps:
step 31: the network side equipment sends a first configuration signaling and/or a first rule to the terminal, wherein the first configuration signaling and/or the first rule is used for executing PMI parameter sharing.
In this embodiment, the first configuration signaling is used to determine PMI parameter sharing, which may include, but is not limited to, at least one of the following:
measuring configuration signaling of a resource set; for example, the set of measurement resources may be a set of channel measurement resources;
CSI reporting configuration signaling;
codebook configuration signaling.
In some embodiments, the first configuration signaling is higher layer signaling. For example, the network side device may indicate PMI parameter sharing through higher layer signaling.
According to the parameter sharing method, the first configuration signaling is sent to the terminal, so that the terminal can execute PMI parameter sharing according to the first configuration signaling, and therefore feedback PMI parameters can be optimized, and feedback overhead of the PMI parameters is reduced.
In this embodiment of the present application, the sharing domain may be added to the first configuration signaling to indicate the PMI parameter sharing situation, that is, an explicit manner is used to indicate which PMI parameters between which measurement resources of the terminal may be shared. Optionally, the first configuration signaling may include at least one of:
a first domain, wherein the first domain comprises at least one first indication information, each first indication information indicates or associates a plurality of measurement resources, and the same airspace base vector indication is associated;
A second domain comprising at least one second indication information, each of the second indication information indicating or being associated with a plurality of measurement resources, associated with the same frequency domain basis vector indication;
and a third domain, wherein the third domain comprises at least one third indication information, each third indication information indicates or is associated with a plurality of measurement resources, and the same airspace base vector indication and frequency domain base vector indication are associated.
Optionally, the first indication information, the second indication information and/or the third indication information include at least one of the following:
a resource identifier;
sequence numbers of corresponding measurement resources in the measurement resource set;
sequence numbers corresponding to the codebook configuration signaling in the CSI report configuration signaling;
a resource set identifier;
sequence number of resource set in resource setting signaling;
a resource group identifier;
sequence numbers of corresponding resource groups in the measurement resource set;
a resource port group identifier;
sequence numbers of corresponding resource port groups in measurement resources;
a resource port identification;
and the corresponding resource port measures the serial number in the resource.
Optionally, when the first configuration signaling includes a first domain, the number of airspace base vectors corresponding to the multiple measurement resources indicated or associated by each first indication information is the same, and/or the configuration of antenna ports corresponding to the multiple measurement resources indicated or associated by each first indication information is the same;
And/or when the first configuration signaling comprises a second domain, each piece of second indication information indicates or associates the same number of frequency domain base vectors corresponding to a plurality of measurement resources;
and/or when the first configuration signaling includes a third domain, the number of frequency domain base vectors and the number of airspace base vectors corresponding to the multiple measurement resources indicated or associated by each third indication information are the same, and/or the configuration of antenna ports corresponding to the multiple measurement resources indicated or associated by each third indication information is the same.
Optionally, when the first configuration signaling includes a first domain, but the number of spatial base vectors and/or antenna port configurations corresponding to the fourth indication information indicated or associated with the plurality of measurement resources are different, the fourth indication information is one of the at least one first indication information, and the parameter sharing method further includes at least one of the following:
the network side equipment receives a first airspace base vector fed back by a terminal, wherein the first airspace base vector is obtained according to the maximum value in the number of a plurality of airspace base vectors, and the number of the airspace base vectors is respectively associated with a plurality of measurement resources indicated or associated by the fourth indication information; thus, the network side can be ensured to acquire all wave beams, and the feedback signaling overhead is reduced;
For the number L of spatial base vectors smaller than the maximum value, the network side device selects L beams with smaller beam serial numbers, or selects L-1 beams closest to the beam with the strongest coefficient, where L is greater than or equal to 1, and at this time, the beam with the strongest coefficient is necessarily selected, where the smallest distance refers to the smallest beam serial number. The wave beam is selected in this way, a plurality of airspace base vector indications corresponding to a plurality of measurement resources can be obtained from one airspace base vector indication fed back by the terminal, so that PMIs associated with the plurality of measurement resources can be effectively recovered; and selecting these beams facilitates recovery of PMI associated with each measurement resource.
Optionally, when the first configuration signaling includes a first field, each of the first indication information indicates or associates with a plurality of measurement resources having the same codebook configuration parameter, and different first indication information indicates or associates with a measurement resource independent configuration codebook configuration parameter.
Optionally, when the first configuration signaling includes a second domain but the number of frequency domain base vectors corresponding to the plurality of measurement resources indicated or associated by the fifth indication information is different, the fifth indication information is one of the at least one second indication information, and the parameter sharing method further includes at least one of:
The network side equipment receives a first frequency domain base vector fed back by the terminal, wherein the first frequency domain base vector is obtained according to the maximum value in the number of a plurality of frequency domain base vectors, and the number of the plurality of frequency domain base vectors corresponds to a plurality of measurement resources indicated or associated by the fifth indication information respectively;
for a number M of frequency domain basis vectors less than said maximum v The network side equipment selects M nearest to the frequency domain base vector where the strongest coefficient is located v -1 beam, said M v Greater than or equal to 1, the frequency domain base vector where the strongest coefficient is located, so that only additional M is selected v -1 beam. The wave beam is selected in this way, a plurality of frequency domain base vector indications corresponding to a plurality of measurement resources can be obtained from the frequency domain base vector indications fed back by the terminal, so that PMIs associated with the plurality of measurement resources can be effectively recovered; and selecting these beams facilitates recovery of PMI associated with each measurement resource.
Optionally, when the first configuration signaling includes a third domain, if the number of spatial base vectors corresponding to the plurality of measurement resources indicated or associated by the sixth indication information is different, the sixth indication information is one of the at least one third indication information, and the method further includes at least one of:
The network side equipment receives a second airspace base vector fed back by the terminal, wherein the second airspace base vector is obtained according to the maximum value in the number of the airspace base vectors, and the number of the airspace base vectors corresponds to the plurality of measurement resources indicated or associated by the sixth indication information;
for the number L of spatial base vectors smaller than the maximum value, the network side equipment selects L beams with smaller beam serial numbers, or selects L-1 beams closest to the beam with the strongest coefficient, wherein L is greater than or equal to 1, the beam with the strongest coefficient is selected, and the smallest distance refers to the minimum beam serial number;
and/or, if the number of frequency domain base vectors corresponding to the plurality of measurement resources indicated or associated by the sixth indication information is different, the method further includes at least one of the following:
the network side equipment receives a second frequency domain base vector fed back by the terminal, wherein the second frequency domain base vector is obtained according to the maximum value in the number of a plurality of frequency domain base vectors, and the number of the plurality of frequency domain base vectors corresponds to a plurality of measurement resources indicated or associated by the sixth indication information respectively;
for a number M of frequency domain basis vectors less than said maximum v The network side equipment selects M nearest to the frequency domain base vector where the strongest coefficient is located v -1 beam, said M v Greater than or equal to 1.
Optionally, the first configuration signaling includes at least one of:
measuring configuration signaling of a resource set;
channel state information, CSI, reporting configuration signaling;
codebook configuration signaling.
Optionally, when the first configuration signaling includes CSI reporting configuration signaling, the CSI reporting configuration signaling includes a fourth domain, and the fourth domain includes at least one seventh indication information, where each seventh indication information is used to indicate or associate a plurality of codebook configuration signaling, and each seventh indication information indicates or associates a plurality of measurement resources associated with the plurality of codebook configuration signaling, and associates the same spatial base vector indication.
Optionally, when the first configuration signaling includes codebook configuration signaling, if the codebook configuration signaling includes at least one port configuration indication information, each port configuration indication information indicates codebook subset restriction information under a corresponding port configuration, and each port configuration indication information is associated with one measurement resource, any one of the following is satisfied:
for a plurality of measurement resources associated with the same port configuration indication information, associating the same base vector indication;
For a plurality of measurement resources associated with the same codebook subset restriction information, associating the same base vector indication;
for a plurality of measurement resources associated with the same port configuration indication information and codebook subset restriction information, the same base vector indication is associated.
Optionally, each port configuration indication information is sequentially associated to a corresponding measurement resource according to a measurement resource configuration sequence.
Optionally, the first rule includes at least one of:
partial parameters in PMI parameters associated with measurement resources associated with the same codebook configuration signaling can be shared;
if a port in one measurement resource corresponds to a plurality of panels or transmission and reception points TRPs, sharing part of PMI parameters among the panels and/or TRPs;
when a network configures a plurality of codebook configuration signaling, wherein each codebook configuration signaling is associated with one channel measurement resource, if port configuration indication information in a first codebook configuration signaling indicates that a first measurement resource is associated with a plurality of panels or TRPs, sharing part of parameters in PMI parameters among a plurality of groups of ports in the first measurement resource; the first codebook configuration signaling is one of the plurality of codebook configuration signaling;
When a network configures one codebook configuration signaling, the one codebook configuration signaling comprises a plurality of codebook subset restriction information, each codebook subset restriction information is associated with one measurement resource, if port configuration indication information in the one codebook configuration signaling indicates that a second measurement resource is associated with a plurality of panels or TRPs, part of PMI parameters are shared among a plurality of groups of ports in the second measurement resource.
According to the parameter sharing method provided by the embodiment of the application, the execution subject can be a parameter sharing device. In the embodiment of the present application, a method for executing parameter sharing by a parameter sharing device is taken as an example, and the parameter sharing device provided in the embodiment of the present application is described.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a parameter sharing device provided in an embodiment of the present application, where the device is applied to a terminal, and as shown in fig. 4, a parameter sharing device 40 includes:
an obtaining module 41, configured to obtain the first configuration signaling and/or the first rule;
an execution module 42, configured to execute PMI parameter sharing according to the first configuration signaling and/or the first rule.
Optionally, the first configuration signaling includes at least one of:
a first domain, wherein the first domain comprises at least one first indication information, each first indication information indicates or associates a plurality of measurement resources, and the same airspace base vector indication is associated;
A second domain comprising at least one second indication information, each of the second indication information indicating or being associated with a plurality of measurement resources, associated with the same frequency domain basis vector indication;
and a third domain, wherein the third domain comprises at least one third indication information, each third indication information indicates or is associated with a plurality of measurement resources, and the same airspace base vector indication and frequency domain base vector indication are associated.
Optionally, when the first configuration signaling includes the first domain, the execution module 42 is further configured to: feeding back a set of airspace base vector indication for each first indication information indication or a plurality of associated measurement resources;
and/or, when the first configuration signaling includes the second domain, the execution module 42 is further configured to: feeding back a frequency domain base vector indication for each second indication information indication or a plurality of associated measurement resources;
and/or, when the first configuration signaling includes the third domain, the execution module 42 is further configured to: for each of the third indication information indicating or associated plurality of measurement resources, feeding back at least one of: one part of airspace base vector indication, one part of frequency domain base vector indication, one part of non-zero coefficient indication and one part of strongest coefficient indication.
Optionally, the first indication information, the second indication information and/or the third indication information include at least one of the following:
a resource identifier;
corresponding to the sequence numbers of the measurement resources in the measurement resource set.
Sequence numbers corresponding to the codebook configuration signaling in the CSI report configuration signaling;
a resource set identifier;
sequence number of resource set in resource setting signaling;
a resource group identifier;
sequence numbers of corresponding resource groups in the measurement resource set;
a resource port group identifier;
sequence numbers of corresponding resource port groups in measurement resources;
a resource port identification;
and the corresponding resource port measures the serial number in the resource.
Optionally, when the first configuration signaling includes the first domain, the number of spatial base vectors corresponding to each of the first indication information indication or the associated plurality of measurement resources is the same, and/or the configuration of antenna ports corresponding to each of the first indication information indication or the associated plurality of measurement resources is the same;
and/or when the first configuration signaling includes the second domain, each second indication information indicates or associates the same number of frequency domain base vectors corresponding to a plurality of measurement resources;
and/or when the first configuration signaling includes the third domain, the number of frequency domain base vectors and the number of airspace base vectors corresponding to each third indication information indicating or associated multiple measurement resources are the same, and/or the configuration of antenna ports corresponding to each third indication information indicating or associated multiple measurement resources is the same.
Optionally, when the first configuration signaling includes a first field, but the number of spatial base vectors and/or antenna port configurations corresponding to the fourth indication information indicated or associated with the plurality of measurement resources are different, the fourth indication information is one of the at least one first indication information, the execution module 42 is further configured to execute at least one of:
determining that the fourth indication information indicates or associates a plurality of measurement resources do not share a spatial base vector;
for the cooperative transmission of the fourth indication information indication or the associated multiple measurement resources, PMI update or feedback is not performed;
acquiring a PMI without using a plurality of measurement resources indicated or associated by the fourth indication information;
acquiring a first airspace base vector according to the maximum value in the number of the airspace base vectors, and feeding back the first airspace base vector, wherein the number of the airspace base vectors is respectively associated with a plurality of measurement resources indicated or associated by the fourth indication information;
and determining that the fourth indication information indication or the associated multiple measurement resources share a first airspace base vector indication and do not share a second airspace base vector indication, wherein the first airspace base vector indication is used for indicating the sequence number of an orthogonal DFT vector group, the second airspace base vector indication is used for indicating L vector sequence numbers in the orthogonal DFT vector group indicated by the first airspace base vector indication, and L is the number of DFT vectors indicated by a network.
Optionally, when the first configuration signaling includes the first domain, each of the first indication information indicates or associates with a plurality of measurement resources having the same codebook configuration parameter, and different first indication information indicates or associates with a measurement resource independent configuration codebook configuration parameter.
Optionally, when the first configuration signaling includes a second domain, but the number of frequency domain base vectors corresponding to the plurality of measurement resources indicated or associated by the fifth indication information is different, the fifth indication information is one of the at least one second indication information, and the execution module 42 is further configured to execute at least one of:
determining that the fifth indication information indicates or is associated with a plurality of measurement resources that do not share a frequency domain base vector;
for the cooperative transmission of the fifth indication information indication or the associated multiple measurement resources, not performing PMI update or feedback;
acquiring a PMI without utilizing a plurality of measurement resources indicated or associated by the fifth indication information;
and acquiring a first frequency domain base vector according to the maximum value of a plurality of frequency domain base vectors, and feeding back the first frequency domain base vector, wherein the plurality of frequency domain base vectors are respectively associated with a plurality of measurement resources indicated or associated by the fifth indication information.
Optionally, when the first configuration signaling includes the third domain, if the number of spatial base vectors corresponding to the plurality of measurement resources indicated or associated by the sixth indication information is different, the sixth indication information is one of the at least one third indication information, and the execution module 42 is further configured to execute at least one of:
determining that the sixth indication information indicates or is associated with a plurality of measurement resources that do not share a spatial base vector;
for the cooperative transmission of the plurality of measurement resources indicated or associated by the sixth indication information, not performing PMI update or feedback;
acquiring a PMI without using the plurality of measurement resources indicated or associated by the sixth indication information;
acquiring a second airspace base vector according to the maximum value in the number of the airspace base vectors, and feeding back the second airspace base vector, wherein the number of the airspace base vectors respectively corresponds to a plurality of measurement resources indicated or associated by the sixth indication information;
determining that the sixth indication information indication or the associated multiple measurement resources share a first airspace base vector indication and do not share a second airspace base vector indication, wherein the first airspace base vector indication is used for indicating the sequence number of an orthogonal DFT vector group, the second airspace base vector indication is used for indicating L vector sequence numbers in the orthogonal DFT vector group indicated by the first airspace base vector indication, and L is the number of DFT vectors indicated by a network;
And/or, if the number of frequency domain base vectors corresponding to the plurality of measurement resources indicated or associated by the sixth indication information is different, the execution module 42 is further configured to at least one of:
determining that the sixth indication information indicates or associates a plurality of measurement resources that do not share a frequency domain base vector;
for the cooperative transmission of the plurality of measurement resources indicated or associated by the sixth indication information, not performing PMI update or feedback;
acquiring a PMI without using the plurality of measurement resources indicated or associated by the sixth indication information;
and acquiring a second frequency domain base vector according to the maximum value of the plurality of frequency domain base vectors, and feeding back the second frequency domain base vector, wherein the plurality of frequency domain base vectors are respectively associated with a plurality of measurement resources indicated or associated by the sixth indication information.
Optionally, the first configuration signaling includes at least one of:
measuring configuration signaling of a resource set;
CSI reporting configuration signaling;
codebook configuration signaling.
Optionally, when the first configuration signaling includes CSI reporting configuration signaling, the CSI reporting configuration signaling includes a fourth domain, the fourth domain includes at least one seventh indication information, each of the seventh indication information is used for indicating or associating a plurality of codebook configuration signaling, each of the seventh indication information indicates or associates a plurality of measurement resources associated with the plurality of codebook configuration signaling, and the same at least one of the following is associated: spatial base vector indication, frequency domain base vector indication, non-zero coefficient indication, strongest coefficient indication.
Optionally, when the first configuration signaling includes codebook configuration signaling, if the codebook configuration signaling includes at least one port configuration indication information, each port configuration indication information is used for indicating codebook subset restriction information under a corresponding port configuration, and each port configuration indication information is associated with one measurement resource, any one of the following is satisfied:
for a plurality of measurement resources associated with the same port configuration indication information, associating the same base vector indication;
for a plurality of measurement resources associated with the same codebook subset restriction information, associating the same base vector indication;
for a plurality of measurement resources associated with the same port configuration indication information and codebook subset restriction information, the same base vector indication is associated.
Optionally, each port configuration indication information is sequentially associated to a corresponding measurement resource according to a measurement resource configuration sequence.
Optionally, the port configuration indication information is used for indicating at least one of the following under the corresponding port configuration: port configuration information of each panel, panel number;
or, the port configuration indication information is used for indicating port configuration information.
Optionally, the first rule includes at least one of:
Partial parameters in PMI parameters associated with measurement resources associated with the same codebook configuration signaling can be shared;
if a port in one measurement resource corresponds to a plurality of panels or TRPs, sharing part of PMI parameters among the panels and/or TRPs;
when a network configures a plurality of codebook configuration signaling, wherein each codebook configuration signaling is associated with one channel measurement resource, if port configuration indication information in a first codebook configuration signaling indicates that a first measurement resource is associated with a plurality of panels or TRPs, sharing part of parameters in PMI parameters among a plurality of groups of ports in the first measurement resource; the first codebook configuration signaling is one of the plurality of codebook configuration signaling;
when a network configures one codebook configuration signaling, the one codebook configuration signaling comprises a plurality of codebook subset restriction information, each codebook subset restriction information is associated with one measurement resource, if port configuration indication information in the one codebook configuration signaling indicates that a second measurement resource is associated with a plurality of panels or TRPs, part of PMI parameters are shared among a plurality of groups of ports in the second measurement resource.
Optionally, the partial parameters include at least one of:
Indicating an airspace base vector;
a frequency domain base vector indication;
a non-zero combination coefficient indication;
the strongest coefficient indicates.
The parameter sharing device 40 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 parameter sharing device 40 provided in this embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a parameter sharing apparatus according to an embodiment of the present application, where the parameter sharing apparatus is applied to a network device, as shown in fig. 5, the parameter sharing apparatus 50 includes:
the sending module 51 is configured to send a first configuration signaling and/or a first rule to the terminal, where the first configuration signaling and/or the first rule are used to perform PMI parameter sharing.
Optionally, the first configuration signaling includes at least one of:
a first domain, wherein the first domain comprises at least one first indication information, each first indication information indicates or associates a plurality of measurement resources, and the same airspace base vector indication is associated;
a second domain comprising at least one second indication information, each of the second indication information indicating or being associated with a plurality of measurement resources, associated with the same frequency domain basis vector indication;
and a third domain, wherein the third domain comprises at least one third indication information, each third indication information indicates or is associated with a plurality of measurement resources, and the same airspace base vector indication and frequency domain base vector indication are associated.
Optionally, the first indication information, the second indication information and/or the third indication information include at least one of the following:
a resource identifier;
sequence numbers of corresponding measurement resources in the measurement resource set;
sequence numbers corresponding to the codebook configuration signaling in the CSI report configuration signaling;
a resource set identifier;
sequence number of resource set in resource setting signaling;
a resource group identifier;
sequence numbers of corresponding resource groups in the measurement resource set;
A resource port group identifier;
sequence numbers of corresponding resource port groups in measurement resources;
a resource port identification;
and the corresponding resource port measures the serial number in the resource.
Optionally, when the first configuration signaling includes the first domain, the number of spatial base vectors corresponding to each of the first indication information indication or the associated plurality of measurement resources is the same, and/or the configuration of antenna ports corresponding to each of the first indication information indication or the associated plurality of measurement resources is the same;
and/or when the first configuration signaling includes the second domain, each second indication information indicates or associates the same number of frequency domain base vectors corresponding to a plurality of measurement resources;
and/or when the first configuration signaling includes the third domain, the number of frequency domain base vectors and the number of airspace base vectors corresponding to each third indication information indicating or associated multiple measurement resources are the same, and/or the configuration of antenna ports corresponding to each third indication information indicating or associated multiple measurement resources is the same.
Optionally, the parameter sharing device 50 includes:
a first execution module, configured to execute at least one of the following when the first configuration signaling includes a first domain, but a fourth indication information indicates or associates that a number of spatial base vectors and/or antenna port configurations corresponding to a plurality of measurement resources are different, where the fourth indication information is one of the at least one first indication information:
Receiving a first airspace base vector fed back by the terminal, wherein the first airspace base vector is obtained according to the maximum value in the number of a plurality of airspace base vectors, and the number of the airspace base vectors is respectively associated with a plurality of measurement resources indicated or associated by the fourth indication information;
and for the number L of the spatial base vectors smaller than the maximum value, selecting L beams with smaller beam serial numbers, or selecting L-1 beams nearest to the beam with the strongest coefficient, wherein L is larger than or equal to 1.
Optionally, when the first configuration signaling includes the first domain, each of the first indication information indicates or associates with a plurality of measurement resources having the same codebook configuration parameter, and different first indication information indicates or associates with a measurement resource independent configuration codebook configuration parameter.
Optionally, the parameter sharing device 50 includes:
a second execution module, configured to execute at least one of the following when the first configuration signaling includes a second domain, but a number of frequency domain base vectors corresponding to a plurality of measurement resources indicated or associated by fifth indication information is different, where the fifth indication information is one of the at least one second indication information:
Receiving a first frequency domain base vector fed back by the terminal, wherein the first frequency domain base vector is obtained according to the maximum value in a plurality of frequency domain base vector quantities, and the plurality of frequency domain base vector quantities respectively correspond to a plurality of measurement resources indicated or associated by the fifth indication information;
for a number M of frequency domain basis vectors less than said maximum v Selecting the frequency domain base vector where the strongest distance coefficient isM nearest in quantity v -1 beam, said M v Greater than or equal to 1.
Optionally, the parameter sharing device 50 includes:
a third execution module, configured to execute at least one of the following when the first configuration signaling includes a third field, but a number of spatial base vectors corresponding to a plurality of measurement resources indicated or associated by sixth indication information is different, where the sixth indication information is one of the at least one third indication information:
receiving a second airspace base vector fed back by the terminal, wherein the second airspace base vector is obtained according to the maximum value in the number of the airspace base vectors, and the number of the airspace base vectors corresponds to the plurality of measurement resources indicated or associated by the sixth indication information respectively;
for the number L of the space domain base vectors smaller than the maximum value, selecting L beams with smaller beam serial numbers, or selecting L-1 beams closest to the beam with the strongest coefficient, wherein L is larger than or equal to 1;
And/or when the number of airspace base vectors corresponding to the plurality of measurement resources indicated or associated by the sixth indication information is different, executing at least one of the following steps:
receiving a second frequency domain base vector fed back by the terminal, wherein the second frequency domain base vector is obtained according to the maximum value in the number of a plurality of frequency domain base vectors, and the number of the plurality of frequency domain base vectors respectively corresponds to a plurality of measurement resources indicated or associated by the sixth indication information;
for a number M of frequency domain basis vectors less than said maximum v Selecting M nearest to the frequency domain base vector where the strongest coefficient is located v -1 beam, said M v Greater than or equal to 1.
Optionally, the first configuration signaling includes at least one of:
measuring configuration signaling of a resource set;
CSI reporting configuration signaling;
codebook configuration signaling.
Optionally, when the first configuration signaling includes CSI reporting configuration signaling, the CSI reporting configuration signaling includes a fourth domain, and the fourth domain includes at least one seventh indication information, where each seventh indication information is used to indicate or associate a plurality of codebook configuration signaling, and each seventh indication information indicates or associates a plurality of measurement resources associated with the plurality of codebook configuration signaling, and associates the same spatial base vector indication.
Optionally, when the first configuration signaling includes codebook configuration signaling, if the codebook configuration signaling includes at least one port configuration indication information, each port configuration indication information indicates codebook subset restriction information under a corresponding port configuration, and each port configuration indication information is associated with one measurement resource, any one of the following is satisfied:
for a plurality of measurement resources associated with the same port configuration indication information, associating the same base vector indication;
for a plurality of measurement resources associated with the same codebook subset restriction information, associating the same base vector indication;
for a plurality of measurement resources associated with the same port configuration indication information and codebook subset restriction information, the same base vector indication is associated.
Optionally, each port configuration indication information is sequentially associated to a corresponding measurement resource according to a measurement resource configuration sequence.
Optionally, the first rule includes at least one of:
partial parameters in PMI parameters associated with measurement resources associated with the same codebook configuration signaling can be shared;
if a port in one measurement resource corresponds to a plurality of panels or transmission and reception points TRPs, sharing part of PMI parameters among the panels and/or TRPs;
When a network configures a plurality of codebook configuration signaling, wherein each codebook configuration signaling is associated with one channel measurement resource, if port configuration indication information in a first codebook configuration signaling indicates that a first measurement resource is associated with a plurality of panels or TRPs, sharing part of parameters in PMI parameters among a plurality of groups of ports in the first measurement resource; the first codebook configuration signaling is one of the plurality of codebook configuration signaling;
when a network configures one codebook configuration signaling, the one codebook configuration signaling comprises a plurality of codebook subset restriction information, each codebook subset restriction information is associated with one measurement resource, if port configuration indication information in the one codebook configuration signaling indicates that a second measurement resource is associated with a plurality of panels or TRPs, part of PMI parameters are shared among a plurality of groups of ports in the second measurement resource.
The parameter sharing device 50 provided in this embodiment of the present application can implement each process implemented by the method embodiment of fig. 3, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.
Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 60, including a processor 61 and a memory 62, where the memory 62 stores a program or instructions that can be executed on the processor 61, for example, when the communication device 60 is a terminal, the program or instructions implement the steps of the embodiment of the parameter sharing method shown in fig. 2 when executed by the processor 61, and achieve the same technical effects. When the communication device 60 is a network side device, the program or the instruction, when executed by the processor 61, implements the steps of the embodiment of the parameter sharing method shown in fig. 3, 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 first configuration signaling and/or the first rule; and executing PMI parameter sharing according to the first configuration signaling and/or the first rule. 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 nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. 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 obtain the first configuration signaling and/or the first rule; and executing PMI parameter sharing according to the first configuration signaling and/or the first rule.
It can be appreciated that, the terminal 700 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, and for avoiding repetition, a detailed description is omitted herein.
The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for sending a first configuration signaling to a terminal, and the terminal executes PMI parameter sharing according to the first configuration signaling. 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 80 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 80 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, and when the program or the instruction is executed by a processor, the processes of the foregoing parameter sharing 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 used for running a program or an instruction, so as to implement each process of the above parameter sharing method embodiment, and achieve the same technical effect, so that repetition is avoided, and no redundant 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 parameter sharing method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated herein.
The embodiment of the application also provides a communication system, which comprises: the terminal may be configured to perform the steps of the parameter sharing method described in fig. 2, and the network side device may be configured to perform the steps of the parameter sharing method described in fig. 3.
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 (34)

1. A method for sharing parameters, comprising:
the terminal acquires a first configuration signaling and/or a first rule;
and the terminal executes Precoding Matrix Indicator (PMI) parameter sharing according to the first configuration signaling and/or the first rule.
2. The method of claim 1, wherein the first configuration signaling comprises at least one of:
a first domain, wherein the first domain comprises at least one first indication information, each first indication information indicates or associates a plurality of measurement resources, and the same airspace base vector indication is associated;
a second domain comprising at least one second indication information, each of the second indication information indicating or being associated with a plurality of measurement resources, associated with the same frequency domain basis vector indication;
and a third domain, wherein the third domain comprises at least one third indication information, each third indication information indicates or is associated with a plurality of measurement resources, and the same airspace base vector indication and frequency domain base vector indication are associated.
3. The method of claim 2, wherein when the first configuration signaling includes the first domain, the terminal performing PMI parameter sharing according to the first configuration signaling includes:
The terminal feeds back a part of airspace base vector indication aiming at each first indication information indication or a plurality of associated measurement resources;
and/or the number of the groups of groups,
when the first configuration signaling includes the second domain, the terminal performing PMI parameter sharing according to the first configuration signaling includes:
the terminal feeds back a frequency domain base vector indication for each second indication information indication or a plurality of associated measurement resources;
and/or the number of the groups of groups,
when the first configuration signaling includes the third domain, the terminal performing PMI parameter sharing according to the first configuration signaling includes:
the terminal feeds back at least one of the following for each of the third indication information indicating or associated plurality of measurement resources: one part of airspace base vector indication, one part of frequency domain base vector indication, one part of non-zero coefficient indication and one part of strongest coefficient indication.
4. The method according to claim 2, wherein the first, second and/or third indication information comprises at least one of:
a resource identifier;
sequence numbers of corresponding measurement resources in the measurement resource set;
sequence numbers corresponding to the codebook configuration signaling in the CSI report configuration signaling;
A resource set identifier;
sequence number of resource set in resource setting signaling;
a resource group identifier;
sequence numbers of corresponding resource groups in the measurement resource set;
a resource port group identifier;
sequence numbers of corresponding resource port groups in measurement resources;
a resource port identification;
and the corresponding resource port measures the serial number in the resource.
5. The method according to claim 2, wherein when the first configuration signaling includes the first domain, each of the first indication information indicates or associates with the same number of spatial basis vectors corresponding to the plurality of measurement resources, and/or each of the first indication information indicates or associates with the same antenna port configuration corresponding to the plurality of measurement resources;
and/or the number of the groups of groups,
when the first configuration signaling comprises the second domains, the number of frequency domain base vectors corresponding to the plurality of measurement resources indicated or associated by each piece of second indication information is the same;
and/or the number of the groups of groups,
when the first configuration signaling includes the third domain, the number of frequency domain base vectors and the number of space domain base vectors corresponding to the plurality of measurement resources indicated or associated by each third indication information are the same, and/or the configuration of antenna ports corresponding to the plurality of measurement resources indicated or associated by each third indication information is the same.
6. The method of claim 2, wherein when the first configuration signaling includes a first field, but a fourth indication information indicates or is associated with a different number of spatial basis vectors and/or antenna port configurations corresponding to a plurality of measurement resources, the fourth indication information is one of the at least one first indication information, the method further comprising at least one of:
the terminal determines that the fourth indication information indicates or associates a plurality of measurement resources not to share an airspace base vector;
the terminal does not perform PMI update or feedback for the cooperative transmission of the fourth indication information indication or the associated multiple measurement resources;
the terminal does not use the fourth indication information to indicate or associate a plurality of measurement resources to obtain a PMI;
the terminal acquires a first airspace base vector according to the maximum value in the number of the airspace base vectors, and feeds back the first airspace base vector, wherein the number of the airspace base vectors is respectively associated with a plurality of measurement resources indicated or associated by the fourth indication information;
the terminal determines that the fourth indication information indication or the associated multiple measurement resources share a first airspace base vector indication and do not share a second airspace base vector indication, wherein the first airspace base vector indication is used for indicating sequence numbers of orthogonal Discrete Fourier Transform (DFT) vector groups, the second airspace base vector indication is used for indicating L vector sequence numbers in the orthogonal DFT vector groups indicated by the first airspace base vector indication, and L is the number of DFT vectors indicated by a network.
7. The method of claim 2, wherein when the first configuration signaling includes the first domain, each of the first indication information indicates or associates a plurality of measurement resources with a same codebook configuration parameter, and different first indication information indicates or associates a measurement resource independent configuration codebook configuration parameter.
8. The method of claim 2, wherein when the first configuration signaling includes a second domain, but a number of frequency domain basis vectors corresponding to a plurality of measurement resources indicated or associated by a fifth indication information is different, the fifth indication information is one of the at least one second indication information, the method further comprising at least one of:
the terminal determines that the fifth indication information indicates or associates a plurality of measurement resources not to share a frequency domain base vector;
the terminal does not perform PMI update or feedback for the cooperative transmission of the fifth indication information indication or the associated multiple measurement resources;
the terminal does not utilize the fifth indication information to indicate or associate a plurality of measurement resources to acquire a PMI;
and the terminal acquires a first frequency domain base vector according to the maximum value of the plurality of frequency domain base vectors, and feeds back the first frequency domain base vector, wherein the plurality of frequency domain base vectors are respectively associated with a plurality of measurement resources indicated or associated by the fifth indication information.
9. The method of claim 2, wherein when the first configuration signaling includes a third domain, if a sixth indication information indicates or the number of spatial basis vectors corresponding to the associated plurality of measurement resources is not the same, the sixth indication information is one of the at least one third indication information, the method further comprising at least one of:
the terminal determines that the sixth indication information indicates or associates a plurality of measurement resources not to share an airspace base vector;
the terminal does not perform PMI update or feedback for the cooperative transmission of the sixth indication information indication or the associated multiple measurement resources;
the terminal does not use the sixth indication information to indicate or associate a plurality of measurement resources to obtain a PMI;
the terminal acquires a second airspace base vector according to the maximum value in the number of the airspace base vectors, and feeds back the second airspace base vector, wherein the number of the airspace base vectors corresponds to the plurality of measurement resources indicated or associated by the sixth indication information respectively;
the terminal determines that the sixth indication information indication or a plurality of associated measurement resources share a first airspace base vector indication and do not share a second airspace base vector indication, wherein the first airspace base vector indication is used for indicating the sequence number of an orthogonal DFT vector group, the second airspace base vector indication is used for indicating L vector sequence numbers in the orthogonal DFT vector group indicated by the first airspace base vector indication, and L is the number of DFT vectors indicated by a network;
And/or the number of the groups of groups,
if the number of frequency domain base vectors corresponding to the plurality of measurement resources indicated or associated by the sixth indication information is different, the method further includes at least one of:
the terminal determines that the plurality of measurement resources indicated or associated by the sixth indication information do not share a frequency domain base vector;
the terminal does not perform PMI update or feedback for the cooperative transmission of the sixth indication information indication or the associated multiple measurement resources;
the terminal does not use the sixth indication information to indicate or associate a plurality of measurement resources to obtain a PMI;
and the terminal acquires a second frequency domain base vector according to the maximum value of the plurality of frequency domain base vectors, and feeds back the second frequency domain base vector, wherein the plurality of frequency domain base vectors are respectively associated with a plurality of measurement resources indicated or associated by the sixth indication information.
10. The method according to any of claims 1 to 9, wherein the first configuration signaling comprises at least one of:
measuring configuration signaling of a resource set;
channel state information, CSI, reporting configuration signaling;
codebook configuration signaling.
11. The method of claim 10, wherein when the first configuration signaling comprises CSI reporting configuration signaling, the CSI reporting configuration signaling comprises a fourth domain comprising at least one seventh indication information, each of the seventh indication information being for indicating or associating a plurality of codebook configuration signaling, each of the seventh indication information indicating or associating a plurality of measurement resources associated with a plurality of codebook configuration signaling, associated with the same at least one of: spatial base vector indication, frequency domain base vector indication, non-zero coefficient indication, strongest coefficient indication.
12. The method according to claim 10, wherein when the first configuration signaling comprises codebook configuration signaling, if the codebook configuration signaling comprises at least one port configuration indication information, each port configuration indication information is used for indicating codebook subset restriction information in a corresponding port configuration, and each port configuration indication information is associated with one measurement resource, any one of the following is satisfied:
for a plurality of measurement resources associated with the same port configuration indication information, associating the same base vector indication;
for a plurality of measurement resources associated with the same codebook subset restriction information, associating the same base vector indication;
for a plurality of measurement resources associated with the same port configuration indication information and codebook subset restriction information, the same base vector indication is associated.
13. The method of claim 12, wherein each of the port configuration indication information is sequentially associated with a corresponding measurement resource in a measurement resource configuration order.
14. The method of claim 12, wherein the port configuration indication information is used to indicate at least one of the following in the corresponding port configuration: port configuration information of each panel, panel number;
Or,
the port configuration indication information is used for indicating port configuration information.
15. The method of claim 1, wherein the first rule comprises at least one of:
partial parameters in PMI parameters associated with measurement resources associated with the same codebook configuration signaling can be shared;
if a port in one measurement resource corresponds to a plurality of panels or transmission and reception points TRPs, sharing part of PMI parameters among the panels and/or TRPs;
when a network configures a plurality of codebook configuration signaling, wherein each codebook configuration signaling is associated with one channel measurement resource, if port configuration indication information in a first codebook configuration signaling indicates that a first measurement resource is associated with a plurality of panels or TRPs, sharing part of parameters in PMI parameters among a plurality of groups of ports in the first measurement resource; the first codebook configuration signaling is one of the plurality of codebook configuration signaling;
when a network configures one codebook configuration signaling, the one codebook configuration signaling comprises a plurality of codebook subset restriction information, each codebook subset restriction information is associated with one measurement resource, if port configuration indication information in the one codebook configuration signaling indicates that a second measurement resource is associated with a plurality of panels or TRPs, part of PMI parameters are shared among a plurality of groups of ports in the second measurement resource.
16. The method of claim 15, wherein the partial parameters include at least one of:
indicating an airspace base vector;
a frequency domain base vector indication;
a non-zero combination coefficient indication;
the strongest coefficient indicates.
17. A method for sharing parameters, comprising:
the network side equipment sends a first configuration signaling and/or a first rule to the terminal, wherein the first configuration signaling and/or the first rule is used for executing PMI parameter sharing.
18. The method of claim 17, wherein the first configuration signaling comprises at least one of:
a first domain, wherein the first domain comprises at least one first indication information, each first indication information indicates or associates a plurality of measurement resources, and the same airspace base vector indication is associated;
a second domain comprising at least one second indication information, each of the second indication information indicating or being associated with a plurality of measurement resources, associated with the same frequency domain basis vector indication;
and a third domain, wherein the third domain comprises at least one third indication information, each third indication information indicates or is associated with a plurality of measurement resources, and the same airspace base vector indication and frequency domain base vector indication are associated.
19. The method of claim 18, wherein the first indication information, the second indication information, and/or the third indication information comprises at least one of:
a resource identifier;
sequence numbers of corresponding measurement resources in the measurement resource set;
sequence numbers corresponding to the codebook configuration signaling in the CSI report configuration signaling;
a resource set identifier;
sequence number of resource set in resource setting signaling;
a resource group identifier;
sequence numbers of corresponding resource groups in the measurement resource set;
a resource port group identifier;
sequence numbers of corresponding resource port groups in measurement resources;
a resource port identification;
and the corresponding resource port measures the serial number in the resource.
20. The method of claim 18, wherein when the first configuration signaling includes the first domain, each of the first indication information indicates or associates with a same number of spatial basis vectors for a plurality of measurement resources, and/or each of the first indication information indicates or associates with a same configuration of antenna ports for a plurality of measurement resources;
and/or the number of the groups of groups,
when the first configuration signaling comprises the second domains, the number of frequency domain base vectors corresponding to the plurality of measurement resources indicated or associated by each piece of second indication information is the same;
And/or the number of the groups of groups,
when the first configuration signaling includes the third domain, the number of frequency domain base vectors and the number of space domain base vectors corresponding to the plurality of measurement resources indicated or associated by each third indication information are the same, and/or the configuration of antenna ports corresponding to the plurality of measurement resources indicated or associated by each third indication information is the same.
21. The method of claim 18, wherein when the first configuration signaling includes a first field, but a fourth indication information indicates or is associated with a different number of spatial basis vectors and/or antenna port configurations for a plurality of measurement resources, the fourth indication information is one of the at least one first indication information, the method further comprising at least one of:
the network side equipment receives a first airspace base vector fed back by the terminal, wherein the first airspace base vector is obtained according to the maximum value in the number of a plurality of airspace base vectors, and the number of the plurality of airspace base vectors is respectively associated with a plurality of measurement resources indicated or associated by the fourth indication information;
for the number L of spatial base vectors smaller than the maximum value, the network side equipment selects L beams with smaller beam serial numbers or selects L-1 beams closest to the beam with the strongest coefficient, wherein L is greater than or equal to 1.
22. The method of claim 18, wherein when the first configuration signaling includes the first domain, each of the first indication information indicates or associates a plurality of measurement resources with the same codebook configuration parameter, and wherein different first indication information indicates or associates a measurement resource independent configuration codebook configuration parameter.
23. The method of claim 18, wherein when the first configuration signaling includes a second domain, but a number of frequency domain basis vectors corresponding to a plurality of measurement resources indicated or associated by a fifth indication information is different, the fifth indication information is one of the at least one second indication information, the method further comprising at least one of:
the network side equipment receives a first frequency domain base vector fed back by the terminal, wherein the first frequency domain base vector is obtained according to the maximum value in the number of a plurality of frequency domain base vectors, and the number of the plurality of frequency domain base vectors is respectively associated with a plurality of measurement resources indicated or associated by the fifth indication information;
for a number M of frequency domain basis vectors less than said maximum v The network side equipment selects M nearest to the frequency domain base vector where the strongest coefficient is located v -1 beam, said M v Greater than or equal to 1.
24. The method of claim 18, wherein when the first configuration signaling includes a third domain, if a sixth indication information indicates or the number of spatial basis vectors corresponding to the associated plurality of measurement resources is not the same, the sixth indication information is one of the at least one third indication information, the method further comprising at least one of:
the network side equipment receives a second airspace base vector fed back by the terminal, wherein the second airspace base vector is obtained according to the maximum value in the number of the airspace base vectors, and the number of the airspace base vectors corresponds to the plurality of measurement resources indicated or associated by the sixth indication information;
for the number L of airspace base vectors smaller than the maximum value, the network side equipment selects L beams with smaller beam serial numbers or selects L-1 beams closest to the beam with the strongest coefficient, wherein L is larger than or equal to 1;
and/or the number of the groups of groups,
if the number of frequency domain base vectors corresponding to the plurality of measurement resources indicated or associated by the sixth indication information is different, the method further includes at least one of:
the network side equipment receives a second frequency domain base vector fed back by the terminal, wherein the second frequency domain base vector is obtained according to the maximum value in the number of a plurality of frequency domain base vectors, and the number of the plurality of frequency domain base vectors corresponds to a plurality of measurement resources indicated or associated by the sixth indication information respectively;
For a number M of frequency domain basis vectors less than said maximum v The network side equipment selects M nearest to the frequency domain base vector where the strongest coefficient is located v -1 beam, said M v Greater than or equal to 1.
25. The method according to any of claims 17 to 24, wherein the first configuration signaling comprises at least one of:
measuring configuration signaling of a resource set;
channel state information, CSI, reporting configuration signaling;
codebook configuration signaling.
26. The method of claim 25, wherein when the first configuration signaling comprises CSI reporting configuration signaling, the CSI reporting configuration signaling comprises a fourth domain comprising at least one seventh indication information, each of the seventh indication information being used to indicate or associate a plurality of codebook configuration signaling, each of the seventh indication information indicating or associating a plurality of measurement resources associated with a plurality of codebook configuration signaling, associated with a same spatial base vector indication.
27. The method of claim 25, wherein when the first configuration signaling comprises codebook configuration signaling, if the codebook configuration signaling comprises at least one port configuration indication information, each port configuration indication information indicating codebook subset restriction information in a corresponding port configuration, each port configuration indication information being associated with one measurement resource, then any one of the following is satisfied:
For a plurality of measurement resources associated with the same port configuration indication information, associating the same base vector indication;
for a plurality of measurement resources associated with the same codebook subset restriction information, associating the same base vector indication;
for a plurality of measurement resources associated with the same port configuration indication information and codebook subset restriction information, the same base vector indication is associated.
28. The method of claim 27, wherein each of the port configuration indication information is sequentially associated with a corresponding measurement resource in a measurement resource configuration order.
29. The method of claim 17, wherein the first rule comprises at least one of:
partial parameters in PMI parameters associated with measurement resources associated with the same codebook configuration signaling can be shared;
if a port in one measurement resource corresponds to a plurality of panels or transmission and reception points TRPs, sharing part of PMI parameters among the panels and/or TRPs;
when a network configures a plurality of codebook configuration signaling, wherein each codebook configuration signaling is associated with one channel measurement resource, if port configuration indication information in a first codebook configuration signaling indicates that a first measurement resource is associated with a plurality of panels or TRPs, sharing part of parameters in PMI parameters among a plurality of groups of ports in the first measurement resource; the first codebook configuration signaling is one of the plurality of codebook configuration signaling;
When a network configures one codebook configuration signaling, the one codebook configuration signaling comprises a plurality of codebook subset restriction information, each codebook subset restriction information is associated with one measurement resource, if port configuration indication information in the one codebook configuration signaling indicates that a second measurement resource is associated with a plurality of panels or TRPs, part of PMI parameters are shared among a plurality of groups of ports in the second measurement resource.
30. A parameter sharing apparatus, comprising:
the acquisition module is used for acquiring the first configuration signaling and/or the first rule;
and the execution module is used for executing PMI parameter sharing according to the first configuration signaling and/or the first rule.
31. A parameter sharing apparatus, comprising:
and the sending module is used for sending a first configuration signaling to the terminal, and the terminal executes PMI parameter sharing according to the first configuration signaling.
32. 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 parameter sharing method of any one of claims 1 to 16.
33. 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 parameter sharing method of any one of claims 17 to 29.
34. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the parameter sharing method according to any one of claims 1 to 16, or the steps of the parameter sharing method according to any one of claims 17 to 29.
CN202211160726.2A 2022-09-22 2022-09-22 Parameter sharing method, device, terminal, network equipment and readable storage medium Pending CN117792446A (en)

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