Communication method, terminal, network device and storage medium

Abstract

The invention relates to a communication method, a terminal, network equipment and a storage medium. The communication method comprises the following steps: a terminal sends first information to network equipment, wherein the first information comprises coefficient information; wherein the coefficient information comprises coefficient information corresponding to at least two reference signal resources, or the coefficient information comprises coefficient information corresponding to at least two port groups of the same reference signal resource. According to the invention, the coefficients corresponding to the vectors of the sparse array are reported.

Description

Communication methods, terminals, network devices and storage media

[0001] This disclosure relates to the field of communication technology, and in particular to communication methods, terminals, network devices and storage media.

[0002] In communication scenarios, high-frequency bands and large-scale antenna arrays (X-Large Arrays) are introduced to improve spectral efficiency. X-Large Arrays can provide greater beamforming gain, effectively compensating for the transmission loss caused by high-frequency bands.

[0003]

[0004] Massive MIMO antenna arrays are characterized by dense and uniform arrays with half-wavelength spacing, but their main problems are high hardware costs and energy consumption.

[0005] This disclosure presents a communication method, a terminal, a network device, and a storage medium.

[0006] According to a first aspect of the present disclosure, a communication method is proposed, the method comprising: a terminal sending first information to a network device, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0007] According to a second aspect of the present disclosure, a communication method is proposed, the method comprising: a network device receiving first information sent by a terminal, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0008] According to a third aspect of the present disclosure, a communication method is proposed, the method comprising: a terminal sending first information to a network device, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource; and the network device receiving the first information sent by the terminal.

[0009] According to a fourth aspect of the present disclosure, a terminal is provided, comprising: a transceiver module, configured to send first information to a network device, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0010] According to a fifth aspect of the present disclosure, a network device is provided, comprising: a transceiver module, configured to receive first information sent by a terminal, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0011] According to a sixth aspect of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the communication methods in the first aspect.

[0012] According to a seventh aspect of the present disclosure, a network device is provided, comprising: one or more processors; wherein the network device is configured to perform the second aspect and any one of the communication methods in the second aspect.

[0013] According to an eighth aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the network device is configured to implement the second aspect and any one of the communication methods in the second aspect.

[0014] According to a ninth aspect of the present disclosure, a storage medium is provided that stores instructions, which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one of the first aspects or the second aspect and any one of the second aspects.

[0015] According to a tenth aspect of the present disclosure, a program product is provided, comprising: a computer program, which, when executed by a communication device, causes the communication device to perform a communication method as described in the first aspect and any one of the first aspects or the second aspect and the second aspect.

[0016] This disclosure transmits first information from a terminal to a network device to report coefficient information corresponding to different reference signal resources, or coefficient information corresponding to different port groups of the same reference signal resource, thereby achieving the reporting of coefficients corresponding to the vector of the sparse array.

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0018] Figure 1a is a schematic diagram of the antenna distribution of different arrays.

[0019] Figure 1b is a schematic diagram of the orientation of different arrays.

[0020] Figure 1c is a schematic diagram of a nested array.

[0021] Figure 1d is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0022] Figure 2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure.

[0023] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0024] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0025] Figure 5 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure.

[0026] Figure 6a is a schematic diagram of the structure of the terminal proposed in an embodiment of this disclosure.

[0027] Figure 6b is a schematic diagram of the structure of the network device proposed in an embodiment of this disclosure.

[0028] Figure 7a is a schematic diagram of the structure of a communication device proposed in an embodiment of this disclosure.

[0029] Figure 7b is a schematic diagram of the chip structure proposed in an embodiment of this disclosure.

[0030] This disclosure presents a communication method, a terminal, a network device, and a storage medium.

[0031] In a first aspect, embodiments of this disclosure propose a communication method, the method comprising: a terminal sending first information to a network device, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0032] In some alternative embodiments of the first aspect, the at least two reference signal resources correspond to different subarrays, or the at least two port groups of the same reference signal resource correspond to different subarrays.

[0033] In some alternative embodiments of the first aspect, the at least two reference signal resources correspond to the same Transmit / Receive Point (TRP), and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same Panel, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same cell, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively.

[0034] In some alternative embodiments of the first aspect, the coefficient information includes at least one of the following: a non-zero coefficient indicator; a strongest coefficient indicator; an amplitude coefficient corresponding to the non-zero coefficient; and a phase coefficient corresponding to the non-zero coefficient.

[0035] In some alternative embodiments of the first aspect, the non-zero coefficient indication includes at least one of the following: a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different port groups; multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; and multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different port groups.

[0036] In some alternative embodiments of the first aspect, the strongest coefficient indication includes at least one of the following: an overall strongest coefficient indication; a local strongest coefficient indication.

[0037] In some alternative embodiments of the first aspect, the coefficient information further includes at least one of the following: the magnitude relative value of the local strongest coefficient relative to the overall strongest coefficient; and the phase relative value of the local strongest coefficient relative to the overall strongest coefficient.

[0038] In some alternative embodiments of the first aspect, the overall strongest coefficient indication includes at least one of the following: a strongest coefficient position corresponding to a plurality of reference signal resources among the at least two reference signal resources; a strongest coefficient position corresponding to a plurality of port groups among the at least two port groups.

[0039] In some alternative embodiments of the first aspect, the local strongest coefficient indication includes at least one of the following: a strongest coefficient position corresponding to one of the at least two reference signal resources; a strongest coefficient position corresponding to one of the at least two port groups.

[0040] In some optional embodiments of the first aspect, the amplitude coefficient corresponding to the non-zero coefficient includes at least one of the following: the relative amplitude value of the non-zero coefficient with respect to the overall strongest coefficient; the relative amplitude value of the position of the non-zero coefficient with respect to the position of the local strongest coefficient.

[0041] In some alternative embodiments of the first aspect, the phase coefficient corresponding to the non-zero coefficient includes at least one of the following: the phase relative value of the non-zero coefficient with respect to the overall strongest coefficient; the phase relative value of the non-zero coefficient with respect to the local strongest coefficient.

[0042] In some optional embodiments of the first aspect, the coefficient information includes coefficients, which are included in the Channel State Information (CSI) report; coefficients with higher priority are located earlier in the CSI report; and / or coefficients with lower priority are located later in the CSI report or are not included in the CSI report; wherein, the coefficients include amplitude coefficients corresponding to non-zero coefficients and / or phase coefficients corresponding to non-zero coefficients.

[0043] In some alternative embodiments of the first aspect, the priority of the coefficients is determined based on at least one of the following methods: the coefficient corresponding to the first reference signal resource has a higher priority than the coefficient corresponding to the second reference signal resource, wherein the port corresponding to the first reference signal resource precedes the port corresponding to the second reference signal resource; the coefficient corresponding to the first port group has a higher priority than the coefficient corresponding to the second port group, wherein the port corresponding to the first port group precedes the port corresponding to the second port group; the coefficient corresponding to the first dimension has a higher priority than the coefficient corresponding to the second dimension.

[0044] In a second aspect, a communication method is provided, the method comprising: a network device receiving first information sent by a terminal, the first information including coefficient information; wherein the coefficient information includes at least two coefficient information for different reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0045] In some alternative embodiments of the second aspect, the at least two reference signal resources correspond to different subarrays, or the at least two port groups of the same reference signal resource correspond to different subarrays.

[0046] In some alternative embodiments of the second aspect, the at least two reference signal resources correspond to the same Transmit / Receive Point (TRP), and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same Panel, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same cell, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively.

[0047] In some alternative embodiments of the second aspect, the coefficient information includes at least one of the following: a non-zero coefficient indicator; a strongest coefficient indicator; an amplitude coefficient corresponding to the non-zero coefficient; and a phase coefficient corresponding to the non-zero coefficient; wherein N is a positive integer.

[0048] In some alternative embodiments of the second aspect, the non-zero coefficient indication includes at least one of the following: a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different port groups; multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; and multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different port groups.

[0049] In some alternative embodiments of the second aspect, the strongest coefficient indication includes at least one of the following: an overall strongest coefficient indication; a local strongest coefficient indication.

[0050] In some alternative embodiments of the second aspect, the coefficient information further includes at least one of the following: the relative magnitude values ​​of the overall strongest coefficient and the local strongest coefficient; and the relative phase values ​​of the overall strongest coefficient and the local strongest coefficient.

[0051] In some alternative embodiments of the second aspect, the overall strongest coefficient indication includes: a strongest coefficient position corresponding to a plurality of reference signal resources among the at least two reference signal resources; and a strongest coefficient position corresponding to a plurality of port groups among the at least two port groups.

[0052] In some alternative embodiments of the second aspect, the local strongest coefficient indication includes: a strongest coefficient position corresponding to one of the at least two reference signal resources; and a strongest coefficient position corresponding to one of the at least two port groups.

[0053] In some optional embodiments of the second aspect, the amplitude coefficient corresponding to the non-zero coefficient includes at least one of the following: the relative amplitude value of the non-zero coefficient with respect to the overall strongest coefficient; the relative amplitude value of the non-zero coefficient with respect to the local strongest coefficient.

[0054] In some alternative embodiments of the second aspect, the phase coefficient corresponding to the non-zero coefficient includes at least one of the following: the phase relative value of the non-zero coefficient with respect to the overall strongest coefficient; the phase relative value of the non-zero coefficient with respect to the local strongest coefficient.

[0055] In some optional embodiments of the second aspect, the coefficient information includes coefficients, which are included in the Channel State Information (CSI) report; coefficients with higher priority are located earlier in the CSI report; and / or coefficients with lower priority are located later in the CSI report or are not included in the CSI report; wherein, the coefficients include amplitude coefficients corresponding to non-zero coefficients and / or phase coefficients corresponding to non-zero coefficients.

[0056] In some alternative embodiments of the second aspect, the priority of the coefficients is determined based on at least one of the following methods: the coefficient corresponding to the first reference signal resource has a higher priority than the coefficient corresponding to the second reference signal resource, and the port corresponding to the first reference signal resource precedes the port corresponding to the second reference signal resource; the coefficient corresponding to the first port group has a higher priority than the coefficient corresponding to the second port group, and the port corresponding to the first port group precedes the port corresponding to the second port group; the coefficient corresponding to the first dimension has a higher priority than the coefficient corresponding to the second dimension.

[0057] Thirdly, a communication method is provided, the method comprising: a terminal sending first information to a network device, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource; and the network device receiving the first information sent by the terminal.

[0058] Fourthly, a terminal is provided, comprising: a transceiver module, configured to send first information to a network device, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0059] In some alternative embodiments of the fourth aspect, the at least two reference signal resources correspond to different subarrays, or the at least two port groups of the same reference signal resource correspond to different subarrays.

[0060] In some alternative embodiments of the fourth aspect, the at least two reference signal resources correspond to the same Transmit / Receive Point (TRP), and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same Panel, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same cell, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively.

[0061] In some alternative embodiments of the fourth aspect, the coefficient information includes at least one of the following: a non-zero coefficient indicator; a strongest coefficient indicator; an amplitude coefficient corresponding to the non-zero coefficient; and a phase coefficient corresponding to the non-zero coefficient.

[0062] In some alternative embodiments of the fourth aspect, the non-zero coefficient indication includes at least one of the following: a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different port groups; multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; and multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different port groups.

[0063] In some alternative embodiments of the fourth aspect, the strongest coefficient indication includes at least one of the following: an overall strongest coefficient indication; a local strongest coefficient indication.

[0064] In some alternative embodiments of the fourth aspect, the coefficient information further includes at least one of the following: the magnitude relative value of the local strongest coefficient relative to the overall strongest coefficient; and the phase relative value of the local strongest coefficient relative to the overall strongest coefficient.

[0065] In some alternative embodiments of the fourth aspect, the overall strongest coefficient indication includes at least one of the following: a strongest coefficient position corresponding to a plurality of reference signal resources among the at least two reference signal resources; a strongest coefficient position corresponding to a plurality of port groups among the at least two port groups.

[0066] In some alternative embodiments of the fourth aspect, the local strongest coefficient indication includes at least one of the following: a strongest coefficient position corresponding to one of the at least two reference signal resources; a strongest coefficient position corresponding to one of the at least two port groups.

[0067] In some optional embodiments of the fourth aspect, the amplitude coefficient corresponding to the non-zero coefficient includes at least one of the following: the relative amplitude value of the non-zero coefficient with respect to the overall strongest coefficient; the relative amplitude value of the position of the non-zero coefficient with respect to the position of the local strongest coefficient.

[0068] In some optional embodiments of the fourth aspect, the phase coefficient corresponding to the non-zero coefficient includes at least one of the following: the phase relative value of the non-zero coefficient with respect to the overall strongest coefficient; the phase relative value of the non-zero coefficient with respect to the local strongest coefficient.

[0069] In some optional embodiments of the fourth aspect, the coefficient information includes coefficients, which are included in the Channel State Information (CSI) report; coefficients with higher priority are located earlier in the CSI report; and / or coefficients with lower priority are located later in the CSI report or are not included in the CSI report; wherein, the coefficients include amplitude coefficients corresponding to non-zero coefficients and / or phase coefficients corresponding to non-zero coefficients.

[0070] In some alternative embodiments of the fourth aspect, the priority of the coefficients is determined based on at least one of the following methods: the coefficient corresponding to the first reference signal resource has a higher priority than the coefficient corresponding to the second reference signal resource, wherein the port corresponding to the first reference signal resource precedes the port corresponding to the second reference signal resource; the coefficient corresponding to the first port group has a higher priority than the coefficient corresponding to the second port group, wherein the port corresponding to the first port group precedes the port corresponding to the second port group; the coefficient corresponding to the first dimension has a higher priority than the coefficient corresponding to the second dimension.

[0071] Fifthly, a network device is provided, comprising: a transceiver module for receiving first information sent by a terminal, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0072] In some alternative embodiments of the fifth aspect, the at least two reference signal resources correspond to different subarrays, or the at least two port groups of the same reference signal resource correspond to different subarrays.

[0073] In some alternative embodiments of the fifth aspect, the at least two reference signal resources correspond to the same Transmit / Receive Point (TRP), and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same Panel, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same cell, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively.

[0074] In some optional embodiments of the fifth aspect, the coefficient information includes at least one of the following: a non-zero coefficient indicator; a strongest coefficient indicator; an amplitude coefficient corresponding to the non-zero coefficient; and a phase coefficient corresponding to the non-zero coefficient; wherein N is a positive integer.

[0075] In some alternative embodiments of the fifth aspect, the non-zero coefficient indication includes at least one of the following: a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different port groups; multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; and multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different port groups.

[0076] In some alternative embodiments of the fifth aspect, the strongest coefficient indication includes at least one of the following: an overall strongest coefficient indication; a local strongest coefficient indication.

[0077] In some optional embodiments of the fifth aspect, the coefficient information further includes at least one of the following: the relative amplitude values ​​of the overall strongest coefficient and the local strongest coefficient; and the relative phase values ​​of the overall strongest coefficient and the local strongest coefficient.

[0078] In some alternative embodiments of the fifth aspect, the overall strongest coefficient indication includes: a strongest coefficient position corresponding to a plurality of reference signal resources among the at least two reference signal resources; and a strongest coefficient position corresponding to a plurality of port groups among the at least two port groups.

[0079] In some alternative embodiments of the fifth aspect, the local strongest coefficient indication includes: a strongest coefficient position corresponding to one of the at least two reference signal resources; and a strongest coefficient position corresponding to one of the at least two port groups.

[0080] In some optional embodiments of the fifth aspect, the amplitude coefficient corresponding to the non-zero coefficient includes at least one of the following: the relative amplitude value of the non-zero coefficient with respect to the overall strongest coefficient; the relative amplitude value of the non-zero coefficient with respect to the local strongest coefficient.

[0081] In some optional embodiments of the fifth aspect, the phase coefficient corresponding to the non-zero coefficient includes at least one of the following: the phase relative value of the non-zero coefficient with respect to the overall strongest coefficient; the phase relative value of the non-zero coefficient with respect to the local strongest coefficient.

[0082] In some optional embodiments of the fifth aspect, the coefficient information includes coefficients, which are included in the Channel State Information (CSI) report; coefficients with higher priority are located earlier in the CSI report; and / or coefficients with lower priority are located later in the CSI report or are not included in the CSI report; wherein, the coefficients include amplitude coefficients corresponding to non-zero coefficients and / or phase coefficients corresponding to non-zero coefficients.

[0083] In some alternative embodiments of the fifth aspect, the priority of the coefficients is determined based on at least one of the following methods: the coefficient corresponding to the first reference signal resource has a higher priority than the coefficient corresponding to the second reference signal resource, wherein the port corresponding to the first reference signal resource precedes the port corresponding to the second reference signal resource; the coefficient corresponding to the first port group has a higher priority than the coefficient corresponding to the second port group, wherein the port corresponding to the first port group precedes the port corresponding to the second port group; the coefficient corresponding to the first dimension has a higher priority than the coefficient corresponding to the second dimension.

[0084] A sixth aspect provides a terminal, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the communication methods in the first aspect.

[0085] A seventh aspect provides a network device, comprising: one or more processors; wherein the network device is configured to perform the second aspect and any one of the communication methods in the second aspect.

[0086] Eighthly, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the network device is configured to implement the second aspect and any one of the communication methods in the second aspect.

[0087] Ninth aspect, a storage medium is provided that stores instructions, which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one thereof, or the second aspect and any one thereof.

[0088] In a tenth aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in an optional implementation of the first or second aspect.

[0089] In one aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in an optional implementation of the first or second aspect.

[0090] In a twelfth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described in an optional implementation of the first or second aspect above.

[0091] It is understood that the terminals, access network devices, first network elements, other network elements, core network devices, communication systems, storage media, program products, computer programs, chips, or chip systems involved in the embodiments of this disclosure are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0092] This disclosure provides communication methods, terminals, network devices, and storage media. In some embodiments, the terms "communication method" and "information processing method" can be used interchangeably, as can the terms "communication device" and "information processing device" and "communication device," and the terms "information processing system" and "communication system."

[0093] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0094] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. The technical environments of different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0095] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0096] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0097] In the embodiments of this disclosure, "multiple" refers to two or more.

[0098] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0099] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0100] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0101] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0102] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0103] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0104] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0105] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0106] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0107] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0108] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0109] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0110] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0111] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0112] In some embodiments, to address the problems of large-scale antenna arrays, the industry has proposed sparse arrays (SA). Sparse array antennas reduce antenna sidelobes and save antenna costs by strategically removing some antenna elements, without significantly reducing antenna gain and beamwidth. A sparse array is a non-uniform linear array. That is, a uniform linear array is modified by removing a portion of its elements using a specific optimization method. Figure 1a shows a schematic diagram of the antenna distribution of different arrays. Figure 1b shows a schematic diagram of the direction of different arrays.

[0113] In some embodiments, a problem with sparse arrays is the uneven antenna distribution. Traditional uniform arrays correspond to Discrete Fourier Transform (DFT) beams, where each antenna element (or port) has the same transmit power, making different DFT beams orthogonal. However, with sparse arrays, the antenna distribution is uneven, and some ports have no antennas. Therefore, how to report the coefficients corresponding to the basis vectors of the sparse array is a problem that needs to be solved.

[0114] Typical sparse arrays include the following:

[0115] (1) Coprime Array (CA): CA is a type of sparse array that introduces a closed-form expression for the antenna position. This means that once the number of elements is given, the antenna position can be obtained immediately without any exhaustive search mechanism. CA consists of a Q-element array with an element spacing of Pd and a (2P-1)-element array with an element spacing of Qd, where P and Q are coprime integers such that P is less than Q, and d represents the half-wavelength element spacing.

[0116] For example: Q=3, P=2, Table 1 shows the antenna element positions (or port positions) corresponding to each subarray. That is, the first subarray is a 3-element array with a spacing of 2d, corresponding to positions 0d, 2d, and 4d, such as position "1" in Table 1; the second subarray is a 3-element subarray with a spacing of 3d, corresponding to positions 0d, 3d, and 6d, such as position "2" in Table 1.

[0117] Table 1

[0118] (2) Nested Arrays (NAs): NAs provide another closed form of antenna position representation. Two-level nested arrays are mainly composed of two nested uniform arrays. Figure 1c is a schematic diagram of a nested array. As shown in Figure 1c, assuming the element spacing of the two uniform arrays is d1 and d2 respectively, and the number of elements is M1 and M2 respectively, then the element spacing of the two uniform arrays satisfies: d2 = (M1 + 1)d1, and the spacing between the first element of the second array and the last element of the first array is also d1. The first array appears to be nested within the second array, forming a nested array. Table 2 is a schematic table showing the element distribution of the subarrays when the total number of elements in the nested array is M. Table 3 shows the antenna element positions (or port positions) corresponding to each subarray when M1 = 3, M2 = 3, d1 = d, d2 = 4d, where "1" indicates the position of the element in the first subarray, and "2" indicates the position of the element in the second subarray.

[0119] Table 2

[0120] Table 3

[0121] (3) Non-redundant array, or minimum redundancy array. The minimum redundancy array has the lowest redundancy, but the design of this array does not have a clear expression for the position of the array elements, and can only be obtained by exhaustive search by computer. Table 4 shows the correspondence between the number of array elements and the position of the array elements in the redundant array.

[0122] Table 4

[0123] Therefore, this disclosure transmits first information to the network device via a terminal to report coefficient information corresponding to different reference signal resources, or coefficient information corresponding to different port groups of the same reference signal resource, thereby achieving the reporting of coefficients corresponding to the vector of the sparse array.

[0124] Figure 1d is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0125] As shown in Figure 1d, the communication system 100 includes a terminal 101 and a network device 102.

[0126] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0127] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0128] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0129] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0130] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0131] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0132] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0133] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1d, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1d are illustrative. The communication system may include all or some of the main bodies in FIG1d, or may include other main bodies outside of FIG1d. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection may be in any way, such as direct connection or indirect connection, wired connection or wireless connection.

[0134] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0135] Figure 2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure. As shown in Figure 2, this embodiment of the present disclosure relates to a communication method for a communication system 100, the method including:

[0136] In step S2101, terminal 101 determines the vectors corresponding to at least two reference signal resources, or determines the vectors corresponding to at least two port groups of the same reference signal resource.

[0137] In some embodiments, at least two reference signal resources correspond to different subarrays. Alternatively, at least two port groups of the same reference signal resource correspond to different subarrays. For example, each reference signal resource corresponds to one subarray, or each port group of the same reference signal resource corresponds to one subarray. Different subarrays constitute the array on the network device side. For example, terminal 101 can determine the vector corresponding to the subarray.

[0138] In some embodiments, a vector may include at least one of a spatial vector and a frequency vector.

[0139] In some embodiments, a spatial vector may be referred to as a spatial basis vector, a beam, or a vector.

[0140] In some embodiments, a frequency domain vector may be referred to as a frequency domain basis vector or vector.

[0141] In some embodiments, for spatial vectors, the terminal can select spatial vectors for at least two reference signal resources (or at least two port groups of the same reference signal resource), and the selected spatial vectors can be the same or different. For frequency vectors, the terminal can select the same frequency vector for at least two reference signal resources (or at least two port groups of the same reference signal resource).

[0142] In step S2102, terminal 101 sends first information to network device 102.

[0143] In some embodiments, network device 102 receives first information sent by terminal 101.

[0144] In some embodiments, the first information includes coefficient information, wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0145] In some embodiments, at least two reference signal resources correspond to different subarrays. Alternatively, at least two port groups of the same reference signal resource correspond to different subarrays. For example, the coefficient information includes coefficient information for different subarrays.

[0146] In some embodiments, at least two reference signal resources correspond to the same Transmission and Receiving Point (TRP), and the spatial vectors corresponding to the at least two reference signal resources are reported separately; or, at least two reference signal resources correspond to the same Panel, and the spatial vectors corresponding to the at least two reference signal resources are reported separately; or, at least two reference signal resources correspond to the same cell, and the spatial vectors corresponding to the at least two reference signal resources are reported separately. For example, at least two reference signal resources correspond to different subarrays of the same TRP, the same Panel, or the same cell, and the different subarrays form an array corresponding to a TRP, a Panel, or a cell. The spatial vectors corresponding to each subarray are selected and reported separately, that is, the spatial vectors corresponding to different subarrays may be different or the same. Separate selection can be understood as selecting a set of spatial vectors for each subarray. For example, a set of spatial vectors A is selected for the first subarray, and a set of spatial vectors B is selected for the second subarray. Similarly, a set of spatial vectors A can be selected for the first subarray, and a set of spatial vectors B can be selected for the second subarray. Likewise, separate reporting can be understood as reporting the spatial vectors separately for each subarray. For example, a set of spatial vectors A corresponding to the first subarray and a set of spatial vectors B corresponding to the second subarray are reported. Another example is reporting a set of spatial vectors A corresponding to the first subarray and a set of spatial vectors B corresponding to the second subarray. The terminal can report the coefficient information corresponding to the spatial vectors, that is, include the coefficient information in the first information and send it to the network device.

[0147] In some embodiments, at least two port groups of the same reference signal resource correspond to the same Transmission and Receiving Point (TRP), the same Panel, or the same Cell, and the spatial vectors corresponding to the at least two port groups are reported separately. For example, at least two port groups correspond to different subarrays of the same TRP, the same Panel, or the same Cell, and the different subarrays form an array corresponding to a TRP, a Panel, or a Cell. The spatial vector corresponding to each subarray is selected and reported separately, that is, the spatial vectors corresponding to different subarrays may be different or the same. The terminal can report coefficient-related information corresponding to the spatial vector, that is, coefficient information is included in the first information and sent to the network device.

[0148] In some embodiments, the coefficient information includes at least one of the following: nonzero coefficients indication; strongest coefficient indication; amplitude coefficient corresponding to the nonzero coefficient; phase coefficient corresponding to the nonzero coefficient.

[0149] Optionally, the coefficient information may include a non-zero coefficient indicator. This can be understood as the coefficient information relating to the coefficients of the vectors corresponding to the subarray. Alternatively, it can be understood as the coefficient information relating to the coefficients of vectors corresponding to different reference signal resources (or different port groups of the same reference signal resource). The non-zero coefficient indicator can indicate which (or which) vectors among the vectors corresponding to at least two reference signal resources (or different port groups of the same reference signal resource) have non-zero coefficients. For example, if the first subarray has L1 spatial vectors and M1 frequency vectors, and the second subarray has L2 spatial vectors and M2 frequency vectors, then the non-zero coefficient indicator can be used to indicate at least one of (L1*M1 + L2*M2). For example, if a reference signal resource corresponds to 5 vectors, and the coefficient of the first vector among the 5 vectors is non-zero while the coefficients of the other vectors are zero, then 5 bits, such as 10000, can be used to indicate that the coefficient of the first vector among the 5 vectors is non-zero. 10000 is one form of non-zero coefficient indication. Of course, this disclosure is not limited to this; 10000 is merely an exemplary example. Non-zero coefficient indication can also be called non-zero coefficient position indication. Non-zero coefficient position refers to the position of a non-zero coefficient among multiple coefficients, that is, the position of a vector with non-zero coefficients among multiple vectors.

[0150] Optionally, the coefficient information may include a strongest coefficient indicator. The strongest coefficient indicator may indicate which (or several) vectors among the vectors corresponding to each reference signal resource (or each port group of the same reference signal resource) has the strongest coefficient; this is referred to in this disclosure as a local strongest coefficient indicator. For example, the first subarray has L1 spatial vectors and M1 frequency vectors, and the second subarray has L2 spatial vectors and M2 frequency vectors. The coefficients of (L1*M1) vectors include N1 non-zero coefficients, and the coefficients of (L2*M2) vectors include N2 non-zero coefficients. Then, the local strongest coefficient indicator may indicate one of N1 and one of N2, i.e., indicating which of the N1 non-zero coefficients is the local strongest coefficient, and indicating which of the N2 non-zero coefficients is the local strongest coefficient. For example, the local strongest coefficient indicator includes log2(N1) bits, the values ​​of which log2(N1) bits are used to indicate which of the N1 non-zero coefficients is the local strongest coefficient. The indicator includes log2(N2) bits, the values ​​of which of the N2 non-zero coefficients is the local strongest coefficient. The strongest coefficient indicator can indicate which (or which) vectors among the vectors corresponding to at least two reference signal resources (or at least two port groups of the same reference signal resource) have the strongest coefficient; this disclosure refers to this as the overall strongest coefficient indicator. For example, the first subarray has L1 spatial vectors and M1 frequency vectors, and the second subarray has L2 spatial vectors and M2 frequency vectors. Since (L1*M1) coefficients include N1 non-zero coefficients, and (L2*M2) coefficients include N2 non-zero coefficients, the overall strongest coefficient indicator can indicate one of (N1+N2), that is, it indicates which of the (N1+N2) non-zero coefficients is the overall strongest coefficient. For example, the overall strongest coefficient can include log2(N1+N2) bits, whose values ​​indicate which of the (N1+N2) non-zero coefficients is the overall strongest coefficient. This strongest coefficient indicator can also be called the strongest coefficient position indicator; for example, the overall strongest coefficient indicator can be called the overall strongest coefficient position indicator, and the local strongest coefficient indicator can be called the local strongest coefficient position indicator, but the name is not limited to these terms. The strongest coefficient position can be the position of the strongest coefficient among multiple non-zero coefficients, that is, the position of the vector with the strongest coefficient among multiple vectors with non-zero coefficients.

[0151] Optionally, the coefficient information may include the amplitude coefficients corresponding to non-zero coefficients. The amplitude coefficients corresponding to non-zero coefficients are relative values, including at least one of the following: the relative amplitude value of the non-zero coefficient relative to the overall strongest coefficient; and the relative amplitude value of the non-zero coefficient relative to the local strongest coefficient. For example, the amplitude coefficient corresponding to a non-zero coefficient may be the amplitude difference or ratio between the actual amplitude of the non-zero coefficient and the actual amplitude of the overall strongest coefficient. As another example, the amplitude coefficient corresponding to a non-zero coefficient may be the amplitude difference or ratio between the actual amplitude of the non-zero coefficient and the actual amplitude of the local strongest coefficient.

[0152] For example, the first subarray has L1 spatial vectors and M1 frequency vectors, and the second subarray has L2 spatial vectors and M2 frequency vectors. The (L1*M1) coefficients include N1 non-zero coefficients, and the (L2*M2) coefficients include N2 non-zero coefficients. If the overall strongest coefficient is among the N1 non-zero coefficients: Optionally, the coefficient information may include the relative magnitudes of the other non-zero coefficients (excluding the strongest coefficient) relative to the overall strongest coefficient. The coefficient information may also include the relative magnitudes of the N2 non-zero coefficients relative to the overall strongest coefficient. Optionally, the coefficient information may include the relative magnitudes of the other non-zero coefficients (excluding the strongest coefficient) relative to the overall strongest coefficient. The coefficient information may also include the relative magnitudes of the locally strongest coefficient among the N2 non-zero coefficients relative to the locally strongest coefficient.

[0153] Optionally, the coefficient information may include the phase coefficients corresponding to non-zero coefficients. The phase coefficients corresponding to non-zero coefficients are relative values, including at least one of the following: the phase relative value of the non-zero coefficient relative to the overall strongest coefficient; the phase relative value of the non-zero coefficient relative to the locally strongest coefficient. For example, the phase coefficient corresponding to a non-zero coefficient may be the phase difference or phase ratio between the actual phase of the non-zero coefficient and the actual phase of the overall strongest coefficient. As another example, the phase coefficient corresponding to a non-zero coefficient may be the phase difference or phase ratio between the actual phase of the non-zero coefficient and the actual phase of the locally strongest coefficient.

[0154] For example, the first subarray has L1 spatial vectors and M1 frequency vectors, and the second subarray has L2 spatial vectors and M2 frequency vectors. The (L1*M1) coefficients include N1 non-zero coefficients, and the (L2*M2) coefficients include N2 non-zero coefficients. If the overall strongest coefficient is among the N1 non-zero coefficients: Optionally, the coefficient information may include the phase relative values ​​of the other non-zero coefficients (excluding the strongest coefficient) relative to the overall strongest coefficient. The coefficient information may also include the phase relative values ​​of the N2 non-zero coefficients relative to the overall strongest coefficient. Optionally, the coefficient information may include the phase relative values ​​of the other non-zero coefficients (excluding the strongest coefficient) relative to the overall strongest coefficient. The coefficient information may also include the amplitude relative values ​​of the position of the locally strongest coefficient among the N2 non-zero coefficients relative to the locally strongest coefficient. The coefficient information may also include the phase relative values ​​of the other non-zero coefficients (excluding the locally strongest coefficient) relative to the locally strongest coefficient.

[0155] In some embodiments, the non-zero coefficient indication includes at least one of the following: a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different port groups; multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; and multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different port groups. The bit field may also be an information field.

[0156] Optionally, the non-zero coefficient indication may include a bit field. Different parts of a bit field may be used to indicate the non-zero coefficient positions corresponding to different reference signal resources, or to indicate the non-zero coefficient positions corresponding to different port groups of the same reference signal resource. For example, each part may be used to indicate the non-zero coefficient position of a reference signal resource (or a port group). The non-zero coefficient position is the position of the non-zero coefficient among multiple coefficients, i.e., the position of the vector with non-zero coefficients among multiple vectors. Taking a sparse array comprising two subarrays as an example, the first information includes coefficient information for two reference signal resources (or two port groups of a reference signal resource). The first part of a bit field indicates the non-zero coefficient position of the first subarray, and the second part indicates the non-zero coefficient position of the second subarray. Assume the first subarray has L1 spatial vectors and M1 frequency vectors, and the second subarray has L2 spatial vectors and M2 frequency vectors. A bit field contains a total of (L1*M1 + L2*M2) bits, where the first L1*M1 bits correspond to the first subarray, and the last L2*M2 bits correspond to the second subarray. The bit value at each bit position in the bit field is a specified value, such as "1", which indicates that the coefficient corresponding to that bit position is a non-zero coefficient, but it is not limited to this.

[0157] Optionally, the non-zero coefficient indication may include multiple bit fields. Different bit fields are used to indicate the non-zero coefficient positions corresponding to different reference signal resources, or to indicate the non-zero coefficient positions corresponding to different port groups of the same reference signal resource. For example, each bit field is used to indicate the non-zero coefficient position of a reference signal resource (or a port group). For example, the first bit field includes L1*M1 bits, corresponding to the first subarray. The second bit field includes L2*M2 bits, corresponding to the second subarray.

[0158] In some embodiments, the strongest coefficient indication includes at least one of the following: an overall strongest coefficient indication; and a local strongest coefficient indication. The overall strongest coefficient indication can indicate which (or several) of the vectors corresponding to at least two reference signal resources (or different port groups of the same reference signal resource) has the strongest coefficient. The local strongest coefficient indication can indicate which (or several) of the vectors corresponding to each reference signal resource (or each port group of the same reference signal resource) has the strongest coefficient.

[0159] Optionally, the overall strongest coefficient indicator can indicate which (or which) vectors among the vectors corresponding to at least two reference signal resources (or different port groups of the same reference signal resource) has the strongest coefficient. For example, if the number of non-zero coefficients corresponding to the first reference signal resource or the first port group is K1, and the number of non-zero coefficients corresponding to the second reference signal resource or the second port group is K2, then the overall strongest coefficient indicates which coefficient in K1+K2 is the strongest coefficient. The required number of bits is log2(K1+K2), where log2(K1+K2) represents the logarithm of (K1+K2) to the base 2.

[0160] Optionally, the local strongest coefficient indicator can indicate which (or which) vectors in the vectors corresponding to each reference signal resource (or each port group of the same reference signal resource) has the strongest coefficient. For example, if the number of non-zero coefficients corresponding to the first reference signal resource or the first port group is K1, then the number of bits required to indicate which coefficient in K1 is the strongest coefficient is log2(K1). Similarly, if the number of non-zero coefficients corresponding to the second reference signal resource or the second port group is K2, then the number of bits required to indicate which coefficient in K2 is the strongest coefficient is log2(K2). It should be noted that if the overall strongest coefficient belongs to one of the non-zero coefficients corresponding to the first reference signal resource or the first port group, then the local strongest coefficient corresponding to the first reference signal resource or the first port group is the same as the overall strongest coefficient, and no further indication is needed.

[0161] In some embodiments, the coefficient information includes the amplitude coefficients corresponding to non-zero coefficients.

[0162] Optionally, the coefficient information may include the relative amplitude values ​​of the non-zero coefficients corresponding to each reference signal resource relative to the overall strongest coefficient. For example, the number of non-zero coefficient bits corresponding to the first reference signal resource or the first port group is K1, and the number of non-zero coefficients corresponding to the second reference signal resource or the second port group is K2. The overall strongest coefficient is one of the K1 non-zero coefficients. Then the coefficient information may include the amplitude coefficients corresponding to the other non-zero coefficients among the K1 non-zero coefficients besides the overall strongest coefficient, and the amplitude coefficients corresponding to the K2 non-zero coefficients. That is, the coefficient information may include "the difference or ratio between the actual amplitude of the other non-zero coefficients among the K1 non-zero coefficients besides the overall strongest coefficient and the actual amplitude of the overall strongest coefficient", and "the difference or ratio between the actual amplitude of the K2 non-zero coefficients and the actual amplitude of the overall strongest coefficient".

[0163] Optionally, the coefficient information includes the relative amplitude values ​​of the non-zero coefficient positions corresponding to each reference signal resource relative to the local strongest coefficient positions. For example, the number of non-zero coefficients corresponding to the first reference signal resource or the first port group is K1, and the number of non-zero coefficients corresponding to the second reference signal resource or the second port group is K2. The overall strongest coefficient is one of the K1 non-zero coefficient positions. The K2 non-zero coefficients include one local strongest coefficient, for example, referred to as the first local strongest coefficient. The coefficient information may include the amplitude coefficients corresponding to the other non-zero coefficients among the K1 non-zero coefficients (excluding the overall strongest coefficient), the amplitude coefficients corresponding to the other non-zero coefficients among the K2 non-zero coefficients (excluding the second local strongest coefficient), and the amplitude coefficient corresponding to the local strongest coefficient among the K2 non-zero coefficients. That is, the coefficient information may include "the difference or ratio between the actual amplitude of the other non-zero coefficients (excluding the overall strongest coefficient) among the K1 non-zero coefficients" and the actual amplitude of the overall strongest coefficient", "the difference or ratio between the actual amplitude of the other non-zero coefficients (excluding the position of the second local strongest coefficient) among the K2 non-zero coefficients and the actual amplitude of the first local strongest coefficient", and "the difference or ratio between the actual amplitude of the local strongest coefficient and the actual amplitude of the overall strongest coefficient among the K2 non-zero coefficients".

[0164] Optionally, for a group of non-zero coefficient positions containing the strongest coefficient, the relative amplitude value relative to the strongest coefficient position can be reported. For other groups of non-zero coefficient positions, the relative amplitude value relative to the local strongest coefficient position can be reported. For example, the number of non-zero coefficients corresponding to the first reference signal resource or the first port group is K1, and the number of non-zero coefficients corresponding to the second reference signal resource or the second port group is K2. The K1 non-zero coefficients include the overall strongest coefficient. The K2 non-zero coefficients include the local strongest coefficient. The coefficient information can include the amplitude coefficients corresponding to the other non-zero coefficients (excluding the overall strongest coefficient) among the K1 non-zero coefficients, the amplitude coefficients corresponding to the other non-zero coefficients (excluding the local strongest coefficient) among the K2 non-zero coefficients, and the amplitude coefficient corresponding to the local strongest coefficient among the K2 non-zero coefficients.

[0165] It is understood that this disclosure only uses the first reference signal resource and the second reference signal resource as examples, but the reference signal resource may include more than two, such as a third reference signal resource. This disclosure does not list them all, but is not limited to this.

[0166] In some embodiments, the coefficient information includes the phase coefficients corresponding to non-zero coefficients.

[0167] Optionally, the coefficient information may include the phase relative value of the non-zero coefficients corresponding to each reference signal resource with respect to the overall strongest coefficients.

[0168] Optionally, the coefficient information includes the phase relative values ​​of the non-zero coefficients corresponding to each reference signal resource with respect to the local strongest coefficients.

[0169] Optionally, for the group of non-zero coefficients containing the strongest coefficient, the phase relative value relative to the strongest coefficient can be reported. For other groups of non-zero coefficients, the phase relative value relative to the local strongest coefficient or the phase relative value relative to the overall strongest coefficient can be reported.

[0170] It is understood that the coefficient information includes optional embodiments of phase relative values, and optional embodiments of amplitude relative values ​​can be referred to, which will not be elaborated here.

[0171] In some embodiments, the coefficient information may include at least one of the following: the relative amplitude value of the local strongest coefficient relative to the overall strongest coefficient; and the relative phase value of the local strongest coefficient relative to the overall strongest coefficient. It is understood that this embodiment can be combined with the above embodiments or implemented independently. For example, the coefficient information may include a strongest coefficient indicator and a local strongest coefficient indicator, and further include the amplitude coefficient of the local strongest coefficient position and / or the phase coefficient of the local strongest coefficient position.

[0172] In some embodiments, the coefficient information includes coefficients of vectors corresponding to at least two reference signal resources. The coefficients include at least one of the amplitude coefficient corresponding to a non-zero coefficient and the phase coefficient corresponding to a non-zero coefficient. The coefficient information is included in the Channel State Information (CSI) report. Higher priority coefficients appear earlier in the CSI report. Lower priority coefficients appear later in the CSI report or are not included in the CSI report. For example, coefficients are included in the CSI report in descending order of priority. If the number of coefficients in the CSI report reaches a threshold, lower priority coefficients can be discarded and not reported.

[0173] In some embodiments, the coefficient information includes coefficients of vectors corresponding to at least two port groups. The coefficients include at least one of the amplitude coefficient corresponding to a non-zero coefficient and the phase coefficient corresponding to a non-zero coefficient. The coefficient information is included in the Channel State Information (CSI) report. Coefficients with higher priority appear earlier in the CSI report. Coefficients with lower priority appear later in the CSI report or are not included in the CSI report. For example, coefficients are included in the CSI report in descending order of priority. If the number of coefficients in the CSI report reaches a threshold, lower-priority coefficients can be discarded and not reported.

[0174] In some embodiments, the priority of coefficients is determined based on at least one of the following methods: coefficients corresponding to a first reference signal resource have a higher priority than coefficients corresponding to a second reference signal resource, and the port corresponding to the first reference signal resource precedes the port corresponding to the second reference signal resource; coefficients corresponding to a first port group have a higher priority than coefficients corresponding to a second port group, and the port corresponding to the first port group precedes the port corresponding to the second port group; coefficients corresponding to a first dimension have a higher priority than coefficients corresponding to a second dimension.

[0175] Optionally, the coefficients corresponding to the first subarray have a higher priority than the coefficients corresponding to the second subarray.

[0176] Optionally, the coefficients corresponding to the first reference signal resource have higher priority than the coefficients corresponding to the second reference signal resource, and the ports corresponding to the first reference signal resource precede the ports corresponding to the second reference signal resource. Specifically, the ports corresponding to the first reference signal resource include either the first or last port of the first reference signal resource; similarly, the ports corresponding to the second reference signal resource include either the first or last port of the second reference signal resource. For example, "the port of the first reference signal resource precedes the port of the second reference signal resource" can be understood as the first port of the first reference signal resource preceding the first port of the second reference signal resource. Another example is "the last port of the first reference signal resource precedes the last port of the second reference signal resource." Yet another example is "the port of the first reference signal resource precedes the port of the second reference signal resource," indicating that the port index of the first reference signal resource is less than the port index of the second reference signal resource. The port index can also be a port identifier (ID). That is, "the port of the first reference signal resource precedes the port of the second reference signal resource" means that the port ID of the first reference signal resource is less than the port ID of the second reference signal resource.

[0177] Optionally, the coefficients corresponding to the first port group have higher priority than the coefficients corresponding to the second port group, and the ports corresponding to the first port group precede the ports corresponding to the second port group. Specifically, the ports corresponding to the first port group include the first or last port corresponding to the first reference signal resource; the ports corresponding to the second port group include the first or last port corresponding to the second reference signal resource. For example, "the ports of the first port group precede the ports of the second port group" can be understood as the first port of the first port group preceding the first port of the second port group. Another example is "the last port of the first port group precedes the last port of the second port group." Yet another example is "the ports of the first port group precede the ports of the second port group," which means that the port index of the first port group is less than the port index of the second port group.

[0178] Optionally, the coefficients corresponding to the first dimension have higher priority than the coefficients corresponding to the second dimension. For example, the first dimension may be horizontal, and the second dimension may be vertical. Or, for example, the first dimension may be vertical, and the second dimension may be horizontal. Of course, horizontal and vertical dimensions are just examples; the priority of coefficients can also be determined based on other dimensions, and this disclosure does not limit this. That is, the priority of the coefficients corresponding to the vector of the first dimension for each reference signal resource is higher than the priority of the coefficients corresponding to the vector of the second dimension for that reference signal resource; the priority of the coefficients corresponding to the vector of the first dimension for each port group is higher than the priority of the coefficients corresponding to the vector of the second dimension for that port group. Here, the dimension can also be called the polarization direction; for example, the first dimension can be the first polarization direction, and the second dimension can be the second polarization direction.

[0179] In some embodiments, the priority value of the coefficient can be referenced to the following formula 1.

[0180] Pri(l,i,f)=2·L·v·π(f)+v·i+l

[0181] In Formula 1, Pri(l,i,f) represents the priority value of the coefficients; the lower the Pri(l,i,f) value, the higher the priority. L represents the number of spatial vectors. l = 1, 2, ..., v. i = 0, 1, ..., 2L-1. For example, when L = 4, i can take values ​​from 0 to 7. v is the number of spatial multiplexing streams, also known as the number of layers or rank. Where min represents the minimum value, that is, if Less than but like Greater than but This is related to the codebook index. For example, the coefficients corresponding to the spatial vectors of the first subarray are indicated first, followed by the coefficients corresponding to the spatial vectors of the second subarray. That is, for the coefficients of different subarrays, the priority value is determined based on the following formula, and coefficients with lower priority values ​​are prioritized during reporting; that is, coefficients with higher priority values ​​are discarded during CSI omission. The coefficients of different subarrays are represented by the different values ​​of i below. For the first subarray, i takes values ​​of 0, 1, ..., 2L1-1, where L1 is the number of spatial vectors corresponding to the first subarray; for the second subarray, i takes values ​​of 2L1, 2L1+1, ..., 2(L1+L2)-1, where L2 is the number of spatial vectors corresponding to the second subarray. Alternatively, the spatial vectors of two subarrays in one polarization direction are examined first, followed by the spatial vectors of two subarrays in another polarization direction. That is, the value of the first polarization direction i of the first subarray is 0, 1, ..., L1-1; the value of the first polarization direction i of the second subarray is L1, L1+1, ..., L1+L2-1; the value of the second polarization direction i of the first subarray is L1+L2, L1+L2+1, ..., 2L1+L2-1; and the value of the second polarization direction i of the second subarray is 2L1+L2, 2L1+L2+1, ..., 2L1+2L2-1.

[0182] In some embodiments, the name of the first information is not limited, and it may be, for example, "first CSI report".

[0183] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2102. For example, step S2101 may be implemented as a standalone embodiment, but is not limited thereto.

[0184] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0185] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3, this embodiment of the present disclosure relates to a communication method executed by terminal 101, the method including:

[0186] Step S3101: Determine the vectors corresponding to at least two reference signal resources, or determine the vectors corresponding to at least two port groups of the same reference signal resource.

[0187] The optional implementation of step S3101 can be found in the optional implementation of step S2101 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0188] Step S3102: Send the first message.

[0189] The optional implementation of step S3102 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0190] In some embodiments, terminal 101 may send first information to network device 102, but is not limited thereto; it may send first information to other entities.

[0191] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, this embodiment of the present disclosure relates to a communication method executed by a network device 102, the method comprising:

[0192] Step S4101: Obtain the first information.

[0193] The optional implementation of step S4101 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0194] In some embodiments, network device 102 receives second configuration information sent by terminal 101, but is not limited thereto; it may also receive second configuration information sent by other entities.

[0195] In some embodiments, network device 102 obtains second configuration information as defined by a protocol.

[0196] In some embodiments, network device 102 obtains second configuration information from upper layer(s).

[0197] In some embodiments, network device 102 processes the information to obtain second configuration information.

[0198] In some embodiments, step S4101 is omitted, and the network device 102 autonomously implements the function indicated by the second configuration information, or the above function is default or default.

[0199] Figure 5 is a schematic diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 5, this embodiment of the present disclosure relates to a communication method, which includes:

[0200] In step S5101, terminal 101 sends first information to network device 102.

[0201] In step S5102, network device 102 receives the first information.

[0202] In some embodiments, the above methods may include the methods of the embodiments relating to the communication system 100, terminal 101 and network device 102, which will not be described again here.

[0203] This disclosure provides a communication method as follows:

[0204] In some embodiments, the terminal reports coefficient information, which includes coefficients corresponding to at least two reference signal resources or at least two port groups corresponding to one reference signal resource. The at least two reference signal resources correspond to the same transmit / receive point or the same cell, and the spatial vectors (beams) corresponding to the two reference signal resources are selected independently.

[0205] In some embodiments, coefficient information includes a non-zero coefficient indication.

[0206] In some embodiments, a non-zero coefficient indication includes at least one of the following:

[0207] (1) A bitmap consists of two parts: the first part indicates the first subarray, and the second part indicates the second subarray. For example, the first subarray has L1 spatial basis vectors and M1 frequency basis vectors; the second subarray has L2 spatial basis vectors and M2 frequency basis vectors. The bitmap contains a total of L1*M1 + L2*M2 bits, where the first L1*M1 bits correspond to the first subarray and the last L2*M2 bits correspond to the second subarray.

[0208] (2) Two bitmaps, each indicating the position of the non-zero coefficient corresponding to a different subarray. The first bitmap consists of L1*M1 bits, and the second bitmap consists of L2*M2 bits.

[0209] In some embodiments, the coefficient information includes an indication of the strongest coefficient.

[0210] In some embodiments, the strongest coefficient indicator includes: the strongest coefficient indicator.

[0211] In some embodiments, for multiple subarrays, an overall strongest coefficient indicator is provided, for example, a total of L1*M1 + L2*M2 coefficients, where the number of non-zero coefficients in L1*M1 is NZ1 and the number of non-zero coefficients in L2*M2 is NZ2. Then, the overall strongest coefficient indicator indicates the position of the overall strongest coefficient in (NZ1 + NZ2), and the number of bits is log2(NZ1 + NZ2). For example, the position of the overall strongest coefficient is the first position in the first subarray L1*M1.

[0212] In some embodiments, the coefficient information also indicates the relative values ​​(amplitude and phase) of other non-zero coefficient positions relative to the strongest coefficient of the whole.

[0213] In some embodiments, for subarrays other than the overall strongest coefficient position, the local strongest coefficient indication for each subarray is given. For example, the coefficient information also indicates that the local strongest coefficient position of the second subarray is at the second position of L2*M2.

[0214] In some embodiments, the coefficient information further indicates the relative value of the coefficient at the second position with respect to the overall strongest coefficient. Further, for other non-zero positions in the first subarray, the coefficient information indicates the relative value with respect to the overall strongest coefficient; for other non-zero positions in the second subarray, the coefficient information indicates the relative value with respect to the local strongest coefficient (i.e., the strongest coefficient within the second array).

[0215] In some embodiments, the coefficient information includes amplitude coefficients and phase coefficients.

[0216] In some embodiments, the positions of the coefficients corresponding to different subarrays (spatial basis vectors) in the coefficient information are as follows:

[0217] First, the coefficients of the spatial basis vectors corresponding to the first subarray are indicated, and then the coefficients of the spatial basis vectors corresponding to the second subarray are indicated. That is, for the coefficients of different subarrays, the priority is determined based on the following formula, and coefficients with lower priority are included in the reporting; that is, coefficients with higher priority are discarded during CSI omission. The coefficients of different subarrays are represented by the different values ​​of i below. For the first subarray, i takes values ​​of 0, 1, ..., 2L1-1, and for the second subarray, i takes values ​​of 2L1, 2L1+1, ..., 2(L1+L2)-1. Alternatively, the spatial basis vectors of the two subarrays in one polarization direction are examined first, and then the spatial basis vectors of the two subarrays in the other polarization direction are examined. That is, the value of the first polarization direction i of the first subarray is 0, 1, ..., L1-1; the value of the first polarization direction i of the second subarray is L1, L1+1, ..., L1+L2-1; the value of the second polarization direction i of the first subarray is L1+L2, L1+L2+1, ..., 2L1+L2-1; and the value of the second polarization direction i of the second subarray is 2L1+L2, 2L1+L2+1, ..., 2L1+2L2-1.

[0218] Among them, Pri(l,i,f)=2·L·v·π(f)+v·i+l.

[0219] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0220] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0221] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0222] Figure 6a is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. As shown in Figure 6a, the terminal 6100 may include at least one of a transceiver module 6101 and a processing module 6102. The transceiver module 6101 sends first information to a network device, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0223] In some embodiments, the at least two reference signal resources correspond to different subarrays, or the at least two port groups of the same reference signal resource correspond to different subarrays.

[0224] In some embodiments, the at least two reference signal resources correspond to the same Transmitter-Receiver Point (TRP), and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same Panel, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same cell, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively.

[0225] In some embodiments, the coefficient information includes at least one of the following: a non-zero coefficient indicator; a strongest coefficient indicator; an amplitude coefficient corresponding to the non-zero coefficient; and a phase coefficient corresponding to the non-zero coefficient.

[0226] In some embodiments, the non-zero coefficient indication includes at least one of the following: a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different port groups; multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; and multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different port groups.

[0227] In some embodiments, the strongest coefficient indication includes at least one of the following: an overall strongest coefficient indication; a local strongest coefficient indication.

[0228] In some embodiments, the coefficient information further includes at least one of the following: the magnitude relative value of the local strongest coefficient relative to the overall strongest coefficient; and the phase relative value of the local strongest coefficient relative to the overall strongest coefficient.

[0229] In some embodiments, the overall strongest coefficient indication includes at least one of the following: a strongest coefficient position corresponding to a plurality of reference signal resources among the at least two reference signal resources; a strongest coefficient position corresponding to a plurality of port groups among the at least two port groups.

[0230] In some embodiments, the local strongest coefficient indication includes at least one of the following: a strongest coefficient position corresponding to one of the at least two reference signal resources; a strongest coefficient position corresponding to one of the at least two port groups.

[0231] In some embodiments, the amplitude coefficient corresponding to the non-zero coefficient includes at least one of the following: the relative amplitude value of the non-zero coefficient with respect to the overall strongest coefficient; the relative amplitude value of the position of the non-zero coefficient with respect to the position of the local strongest coefficient.

[0232] In some embodiments, the phase coefficient corresponding to the non-zero coefficient includes at least one of the following: the phase relative value of the non-zero coefficient with respect to the overall strongest coefficient; the phase relative value of the non-zero coefficient with respect to the local strongest coefficient.

[0233] In some embodiments, the coefficient information includes coefficients, which are included in the Channel State Information (CSI) report; coefficients with higher priority are located earlier in the CSI report; and / or coefficients with lower priority are located later in the CSI report or are not included in the CSI report; wherein, the coefficients include amplitude coefficients corresponding to non-zero coefficients and / or phase coefficients corresponding to non-zero coefficients.

[0234] In some embodiments, the priority of the coefficients is determined based on at least one of the following methods: the coefficient corresponding to the first reference signal resource has a higher priority than the coefficient corresponding to the second reference signal resource, and the port corresponding to the first reference signal resource precedes the port corresponding to the second reference signal resource; the coefficient corresponding to the first port group has a higher priority than the coefficient corresponding to the second port group, and the port corresponding to the first port group precedes the port corresponding to the second port group; the coefficient corresponding to the first dimension has a higher priority than the coefficient corresponding to the second dimension.

[0235] Figure 6b is a schematic diagram of the network device proposed in an embodiment of this disclosure. As shown in Figure 6b, the network device 6200 may include at least one of a transceiver module 6201 and a processing module 6202. The transceiver module 6201 is used to receive first information sent by a terminal, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource.

[0236] In some embodiments, the at least two reference signal resources correspond to different subarrays, or the at least two port groups of the same reference signal resource correspond to different subarrays.

[0237] In some embodiments, the at least two reference signal resources correspond to the same Transmitter-Receiver Point (TRP), and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same Panel, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same cell, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively.

[0238] In some embodiments, the coefficient information includes at least one of the following: a non-zero coefficient indicator; a strongest coefficient indicator; an amplitude coefficient corresponding to the non-zero coefficient; and a phase coefficient corresponding to the non-zero coefficient; wherein N is a positive integer.

[0239] In some embodiments, the non-zero coefficient indication includes at least one of the following: a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different port groups; multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; and multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different port groups.

[0240] In some embodiments, the strongest coefficient indication includes at least one of the following: an overall strongest coefficient indication; a local strongest coefficient indication.

[0241] In some embodiments, the coefficient information further includes at least one of the following: the relative magnitude values ​​of the overall strongest coefficient and the local strongest coefficient; and the relative phase values ​​of the overall strongest coefficient and the local strongest coefficient.

[0242] In some embodiments, the overall strongest coefficient indication includes: a strongest coefficient position corresponding to a plurality of reference signal resources among the at least two reference signal resources; and a strongest coefficient position corresponding to a plurality of port groups among the at least two port groups.

[0243] In some embodiments, the local strongest coefficient indication includes: a strongest coefficient position corresponding to one of the at least two reference signal resources; and a strongest coefficient position corresponding to one of the at least two port groups.

[0244] In some embodiments, the amplitude coefficient corresponding to the non-zero coefficient includes at least one of the following: the relative amplitude value of the non-zero coefficient with respect to the overall strongest coefficient; the relative amplitude value of the non-zero coefficient with respect to the local strongest coefficient.

[0245] In some embodiments, the phase coefficient corresponding to the non-zero coefficient includes at least one of the following: the phase relative value of the non-zero coefficient with respect to the overall strongest coefficient; the phase relative value of the non-zero coefficient with respect to the local strongest coefficient.

[0246] In some embodiments, the coefficient information includes coefficients, which are included in the Channel State Information (CSI) report; coefficients with higher priority are located earlier in the CSI report; and / or coefficients with lower priority are located later in the CSI report or are not included in the CSI report; wherein, the coefficients include amplitude coefficients corresponding to non-zero coefficients and / or phase coefficients corresponding to non-zero coefficients.

[0247] In some embodiments, the priority of the coefficients is determined based on at least one of the following methods: the coefficient corresponding to the first reference signal resource has a higher priority than the coefficient corresponding to the second reference signal resource, and the port corresponding to the first reference signal resource precedes the port corresponding to the second reference signal resource; the coefficient corresponding to the first port group has a higher priority than the coefficient corresponding to the second port group, and the port corresponding to the first port group precedes the port corresponding to the second port group; the coefficient corresponding to the first dimension has a higher priority than the coefficient corresponding to the second dimension.

[0248] Figure 7a is a schematic diagram of a communication device according to an embodiment of this disclosure. The communication device 7100 can be a network device, a terminal, or a chip, chip system, or processor that supports the network device in implementing any of the above methods; alternatively, the network device can be an access network device, a core network device, etc. Optionally, the terminal can be a user equipment, etc. The communication device 7100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0249] As shown in Figure 7a, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device, execute programs, and process program data. The communication device 7100 is used to execute any of the above methods. Optionally, the communication device can be a base station, a baseband chip, a terminal device, a terminal device chip, a DU (Distributed Unit), or a CU (Computer Integrated Circuit), etc.

[0250] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may also be located outside the communication device 7100.

[0251] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceivers 7103 perform communication steps S2101 such as sending and / or receiving in the above method, and the processor 7101 performs other steps.

[0252] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0253] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0254] The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0255] Figure 7b is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the chip 7200 shown in Figure 7b, but it is not limited thereto.

[0256] Chip 7200 includes one or more processors 7201, which are used to perform any of the above methods.

[0257] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to memory 7203, and the interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201.

[0258] In some embodiments, the interface circuit 7202 performs communication steps S2101 such as sending and / or receiving in the above method, and the processor 7201 performs other steps.

[0259] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0260] In some embodiments, chip 7200 further includes one or more memories 7203 for storing instructions. Optionally, all or part of the memories 7203 may be located outside of chip 7200.

[0261] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0262] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0263] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

A communication method, characterized in that, The method includes: a terminal sending first information to a network device, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource. The method according to claim 1, characterized in that, The at least two reference signal resources correspond to different subarrays, or the at least two port groups of the same reference signal resource correspond to different subarrays. The method according to any one of claims 1-2, characterized in that, The at least two reference signal resources correspond to the same Transmitter-Receiver Point (TRP), and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same Panel, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively. Alternatively, the at least two reference signal resources correspond to the same cell, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively. The method according to any one of claims 1-3, characterized in that, The coefficient information includes at least one of the following: a non-zero coefficient indicator; a strongest coefficient indicator; an amplitude coefficient corresponding to the non-zero coefficient; and a phase coefficient corresponding to the non-zero coefficient. The method according to claim 4, characterized in that, The non-zero coefficient indication includes at least one of the following: a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different port groups; multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; and multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different port groups. The method according to any one of claims 4-5, characterized in that, The strongest coefficient indicator includes at least one of the following: overall strongest coefficient indicator; local strongest coefficient indicator. The method according to claim 6, characterized in that, The coefficient information also includes at least one of the following: the relative magnitude of the local strongest coefficient relative to the overall strongest coefficient; and the relative phase of the local strongest coefficient relative to the overall strongest coefficient. The method according to claim 6, characterized in that, The overall strongest coefficient indication includes at least one of the following: a strongest coefficient position corresponding to a plurality of reference signal resources among the at least two reference signal resources; a strongest coefficient position corresponding to a plurality of port groups among the at least two port groups. The method according to claim 6, characterized in that, The local strongest coefficient indication includes at least one of the following: the position of the strongest coefficient corresponding to one of the at least two reference signal resources; or the position of the strongest coefficient corresponding to one of the at least two port groups. The method according to any one of claims 4-9, characterized in that, The amplitude coefficient corresponding to the non-zero coefficient includes at least one of the following: the relative amplitude value of the non-zero coefficient with respect to the overall strongest coefficient; the relative amplitude value of the non-zero coefficient with respect to the local strongest coefficient. The method according to any one of claims 4-10, characterized in that, The phase coefficient corresponding to the non-zero coefficient includes at least one of the following: the phase relative value of the non-zero coefficient with respect to the overall strongest coefficient; the phase relative value of the non-zero coefficient with respect to the local strongest coefficient. The method according to any one of claims 1-11, characterized in that, The coefficient information includes coefficients, which are included in the Channel State Information (CSI) report; coefficients with higher priority are located earlier in the CSI report; and / or coefficients with lower priority are located later in the CSI report or are not included in the CSI report; wherein, the coefficients include amplitude coefficients corresponding to non-zero coefficients and / or phase coefficients corresponding to non-zero coefficients. The method according to claim 12, characterized in that, The priority of the coefficients is determined based on at least one of the following methods: the coefficients corresponding to the first reference signal resource have a higher priority than the coefficients corresponding to the second reference signal resource, and the port corresponding to the first reference signal resource precedes the port corresponding to the second reference signal resource; the coefficients corresponding to the first port group have a higher priority than the coefficients corresponding to the second port group, and the port corresponding to the first port group precedes the port corresponding to the second port group; the coefficients corresponding to the first dimension have a higher priority than the coefficients corresponding to the second dimension. A communication method, characterized in that, The method includes: a network device receiving first information sent by a terminal, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource. The method according to claim 14, characterized in that, The at least two reference signal resources correspond to different subarrays, or the at least two port groups of the same reference signal resource correspond to different subarrays. The method according to any one of claims 14-15 is characterized in that, The at least two reference signal resources correspond to the same Transmitter / Receiver Point (TRP), and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same Panel, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively; or, the at least two reference signal resources correspond to the same cell, and the spatial vectors corresponding to the at least two reference signal resources are reported respectively. The method according to any one of claims 14-16, characterized in that, The coefficient information includes at least one of the following: a non-zero coefficient indicator; a strongest coefficient indicator; an amplitude coefficient corresponding to the non-zero coefficient; and a phase coefficient corresponding to the non-zero coefficient; wherein N is a positive integer. The method according to claim 17, characterized in that, The non-zero coefficient indication includes at least one of the following: a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; a bit field, wherein different portions of the bit field are used to indicate the non-zero coefficient positions corresponding to different port groups; multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different reference signal resources; and multiple bit fields, wherein different bit fields are used to indicate the non-zero coefficient positions corresponding to different port groups. The method according to any one of claims 17-18, characterized in that, The strongest coefficient indicator includes at least one of the following: overall strongest coefficient indicator; local strongest coefficient indicator. The method according to claim 19, characterized in that, The coefficient information also includes at least one of the following: the relative magnitude of the local strongest coefficient relative to the overall strongest coefficient; and the relative phase of the local strongest coefficient relative to the overall strongest coefficient. The method according to claim 19, characterized in that, The overall strongest coefficient indication includes: a strongest coefficient position corresponding to multiple reference signal resources among the at least two reference signal resources; and a strongest coefficient position corresponding to multiple port groups among the at least two port groups. The method according to claim 19, characterized in that, The local strongest coefficient indication includes: a strongest coefficient position corresponding to one of the at least two reference signal resources; and a strongest coefficient position corresponding to one of the at least two port groups. The method according to any one of claims 17-22 is characterized in that, The amplitude coefficient corresponding to the non-zero coefficient includes at least one of the following: the relative amplitude value of the non-zero coefficient with respect to the overall strongest coefficient; the relative amplitude value of the non-zero coefficient with respect to the position of the local strongest coefficient. The method according to any one of claims 17-23 is characterized in that, The phase coefficient corresponding to the non-zero coefficient includes at least one of the following: the phase relative value of the non-zero coefficient with respect to the overall strongest coefficient; the phase relative value of the non-zero coefficient with respect to the local strongest coefficient. The method according to any one of claims 14-24 is characterized in that, The coefficient information includes coefficients, which are included in the Channel State Information (CSI) report; coefficients with higher priority are located earlier in the CSI report; and / or coefficients with lower priority are located later in the CSI report or are not included in the CSI report; wherein, the coefficients include amplitude coefficients corresponding to non-zero coefficients and / or phase coefficients corresponding to non-zero coefficients. The method according to claim 25, characterized in that, The priority of the coefficients is determined based on at least one of the following methods: the coefficients corresponding to the first reference signal resource have a higher priority than the coefficients corresponding to the second reference signal resource, and the port corresponding to the first reference signal resource precedes the port corresponding to the second reference signal resource; the coefficients corresponding to the first port group have a higher priority than the coefficients corresponding to the second port group, and the port corresponding to the first port group precedes the port corresponding to the second port group; the coefficients corresponding to the first dimension have a higher priority than the coefficients corresponding to the second dimension. A communication method, characterized in that, The method includes: a terminal sending first information to a network device, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource; and the network device receiving the first information sent by the terminal. A terminal, characterized in that, include: A transceiver module is used to send first information to a network device, the first information including coefficient information; wherein the coefficient information includes coefficient information corresponding to at least two reference signal resources, or the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource. A network device, characterized in that, include: A transceiver module is used to receive first information sent by a terminal, the first information including coefficient information; wherein, the coefficient information includes coefficient information corresponding to at least two reference signal resources, or, the coefficient information includes coefficient information corresponding to at least two port groups of the same reference signal resource. A terminal, characterized in that, include: One or more processors; wherein the processors are configured to perform the communication method according to any one of claims 1-13. A network device, characterized in that, include: One or more processors; wherein the processors are configured to perform the communication method according to any one of claims 14-26. A communication system, characterized in that, include: A terminal and a network device, wherein the terminal is configured to implement the communication method of any one of claims 1-13, and the network device is configured to implement the communication method of any one of claims 14-26. A storage medium, characterized in that, include: The storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the communication method as described in any one of claims 1-13 or 14-26. A program product, characterized in that, include: A computer program, when executed by a communication device, causes the communication device to perform the communication method as described in any one of claims 1-13 or 14-26.

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