Transmission layer determination method and apparatus, terminal, network device, and storage medium

Abstract

This disclosure relates to the field of communication technology, specifically to a method and apparatus for determining the transport layer, a terminal, a network device, and a storage medium. The method for determining the transport layer includes: determining the transmission power of the transport layer corresponding to a spatial basis vector based on an amplitude scaling factor; determining received information based on the spatial basis vector and the amplitude scaling factor; determining the strongest transport layer among the transport layers corresponding to the spatial basis vector based on the received information; and sending first indication information to the network device, wherein the first indication information is used to indicate the strongest transport layer. According to this disclosure, the problem of determining the strongest transport layer based on the assumption that the transmission power of each transport layer is equal, even when scaling the transmission power based on the amplitude scaling factor, can be avoided, thus preventing the strongest transport layer determined by the terminal from being inconsistent with the actual strongest transport layer.

Description

Transport layer determination methods and apparatus, terminals, network devices and storage media Technical Field

[0001] This disclosure relates to the field of communication technology, and more specifically, to a method for determining the transport layer, a device for determining the transport layer, a terminal, a network device, a communication system, and a storage medium. Background Technology

[0002] In some communication scenarios, network devices and terminals can communicate based on codebooks. Network devices can configure terminals to report Layer Indication (LI) information. Terminals can determine the strongest transport layer in the codebook and then indicate this strongest transport layer to the network device using the LI information. However, in some cases, the process of determining the strongest transport layer by the terminal may encounter technical problems.

[0003] Summary of the Invention

[0004] The embodiments of this disclosure provide a transport layer determination method and apparatus, a terminal, a network device, and a storage medium to solve technical problems in the related art.

[0005] According to a first aspect of the present disclosure, a transport layer determination method is proposed, executed by a terminal, the method comprising: determining the transmission power of a transport layer corresponding to a spatial basis vector based on a spatial basis vector magnitude scaling factor; determining received information based on the spatial basis vector and the transmission power; determining the strongest transport layer among the transport layers based on the received information; and sending first indication information to a network device, wherein the first indication information is used to indicate the strongest transport layer.

[0006] According to a second aspect of the present disclosure, a transport layer determination method is proposed, executed by a network device, the method comprising: receiving first indication information sent by a terminal; wherein the first indication information is used to indicate the strongest transport layer, the strongest transport layer is determined based on the received information in the transport layer corresponding to the spatial basis vector, the received information is determined based on the spatial basis vector and the transmission power of the transport layer corresponding to the spatial basis vector, and the transmission power is determined based on the amplitude scaling factor of the spatial basis vector.

[0007] According to a third aspect of the present disclosure, a transport layer determination apparatus is provided, the apparatus comprising: a processing module configured to determine the transmission power of a transport layer corresponding to a spatial basis vector based on an amplitude scaling factor of the spatial basis vector; determine received information based on the spatial basis vector and the transmission power; and determine the strongest transport layer in the transport layers based on the received information; and a sending module configured to send first indication information to a network device, wherein the first indication information is used to indicate the strongest transport layer.

[0008] According to a fourth aspect of the present disclosure, a transport layer determination apparatus is provided, executed by a network device. The apparatus includes: a receiving module configured to receive first indication information sent by a terminal; wherein the first indication information is used to indicate the strongest transport layer, the strongest transport layer is determined based on the received information in the transport layer corresponding to the spatial basis vector, the received information is determined based on the spatial basis vector and the transmission power of the transport layer corresponding to the spatial basis vector, and the transmission power is determined based on the amplitude scaling factor.

[0009] According to a fifth aspect of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to perform the transport layer determination method described in the first aspect.

[0010] According to a sixth aspect of the present disclosure, a network device is provided, comprising: one or more processors; wherein the network device is configured to perform the transport layer determination method described in the second aspect.

[0011] According to a seventh 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 transport layer determination method as described in any one of the first and second aspects, and the network device is configured to implement the transport layer determination method as described in any one of the first and second aspects.

[0012] According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform the transport layer determination method described in any one of the first and second aspects.

[0013] According to a ninth aspect of the present disclosure, a program product is provided that, when executed by a communication device, causes the communication device to perform the transport layer determination method as described in any one of the first and second aspects.

[0014] According to embodiments of this disclosure, when a terminal determines that the transmission power of the transmission layer needs to be scaled according to the amplitude scaling factor, it can first determine the transmission power of the transmission layer corresponding to the spatial basis vector according to the amplitude scaling factor, for example, scale the transmission power of the transmission layer according to the amplitude scaling factor, and then determine the strongest transmission layer in the transmission layer corresponding to the spatial basis vector based on the scaled transmission power.

[0015] Therefore, it is possible to avoid the problem of determining the strongest transmission layer based on the assumption that the transmission power of each transmission layer is equal when scaling the transmission power based on the amplitude scaling factor, which would lead to a discrepancy between the strongest transmission layer determined by the terminal and the actual strongest transmission layer. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0018] Figure 2 is an interactive schematic diagram illustrating a transport layer determination method according to an embodiment of the present disclosure.

[0019] Figure 3 is a schematic block diagram of a transport layer determination apparatus according to an embodiment of the present disclosure.

[0020] Figure 4 is a schematic block diagram of a transport layer determination apparatus according to an embodiment of the present disclosure.

[0021] Figure 5A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.

[0022] Figure 5B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0023] Embodiments of this disclosure provide a method and apparatus for determining the transport layer, a terminal, a network device, and a storage medium.

[0024] In a first aspect, embodiments of this disclosure propose a transport layer determination method, executed by a terminal, the method comprising: determining the transmission power of the transport layer corresponding to the spatial basis vector based on the magnitude scaling factor of the spatial basis vector; determining received information based on the spatial basis vector and the transmission power; determining the strongest transport layer in the transport layers based on the received information; and sending first indication information to a network device, wherein the first indication information is used to indicate the strongest transport layer.

[0025] In the above embodiments, when the terminal determines that the transmission power of the transmission layer needs to be scaled according to the amplitude scaling factor, it can first determine the transmission power of the transmission layer corresponding to the spatial basis vector according to the amplitude scaling factor, for example, scale the spatial basis vector according to the amplitude scaling factor, then determine the transmission power of the transmission layer corresponding to the scaled spatial basis vector, and then determine the strongest transmission layer in the transmission layer corresponding to the spatial basis vector based on the transmission power.

[0026] Therefore, it is possible to avoid the problem of determining the strongest transmission layer based on the assumption that the transmission power of each transmission layer is equal when scaling the transmission power based on the amplitude scaling factor, which would lead to a discrepancy between the strongest transmission layer determined by the terminal and the actual strongest transmission layer.

[0027] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; wherein, determining the received information based on the amplitude scaling factor and the transmission power includes: determining the received information based on the amplitude scaling factor and the adjusted transmission power.

[0028] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: receiving second indication information sent by a network device; wherein, if the second indication information determines the strongest transmission layer without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, then the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor is not adjusted; or, if the second indication information indicates that the strongest transmission layer is determined by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, then the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor is adjusted.

[0029] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: sending third indication information to a network device; wherein the third indication information instructs the terminal to determine the strongest transmission layer without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor; or, the third indication information instructs the terminal to determine the strongest transmission layer by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: determining the strongest transmission layer according to predefined rules without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, and then not adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; or, determining the strongest transmission layer according to predefined rules without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, and then adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, adjusting the transmission power of the transmission layer corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor includes one of the following: adjusting the transmission power of the transmission layer corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor for each codeword in the codebook; adjusting the transmission power of the transmission layer corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor for a portion of the codewords in the codebook; wherein each codeword corresponds to at least one transmission layer.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the amplitude scaling factor includes at least one of the following: a first scaling factor greater than a scaling threshold; and a second scaling factor less than or equal to the scaling threshold.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, determining the strongest transport layer among the transport layers corresponding to the spatial basis vectors based on the received information includes one of the following:

[0034] Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vector scaled by the first scaling factor and the transmission layers with transmission power corresponding to the spatial basis vector scaled by the second scaling factor.

[0035] Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vectors scaled by the first scaling factor.

[0036] Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vectors scaled by the second scaling factor.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the received information includes at least one of the following: a maximum value of the received power; a maximum value of the signal-to-interference-plus-noise ratio.

[0038] Secondly, embodiments of this disclosure propose a transport layer determination method, executed by a network device, the method comprising: receiving first indication information sent by a terminal; wherein the first indication information is used to indicate the strongest transport layer, the strongest transport layer is determined based on the received information in the transport layer corresponding to the spatial basis vector, the received information is determined based on the spatial basis vector and the transmission power of the transport layer corresponding to the spatial basis vector, and the transmission power is determined based on the amplitude scaling factor of the spatial basis vector.

[0039] In conjunction with some embodiments of the second aspect, in some embodiments, the transmission power includes: the transmission power of the transmission layer corresponding to the adjusted spatial basis vector that has not been scaled by the amplitude scaling factor; wherein the received information is determined based on the amplitude scaling factor and the adjusted transmission power.

[0040] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending second indication information to the terminal, wherein the second indication information is used to indicate that the strongest transmission layer is determined without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor, or the second indication information indicates that the strongest transmission layer is determined by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor.

[0041] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: receiving third indication information sent by the terminal; wherein the third indication information instructs the terminal to determine the strongest transmission layer without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor; or, the third indication information instructs the terminal to determine the strongest transmission layer by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor.

[0042] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: determining the strongest transmission layer based on predefined rules without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor; or, determining the strongest transmission layer based on predefined rules while adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor.

[0043] In conjunction with some embodiments of the second aspect, in some embodiments, adjusting the transmission power of the transmission layer corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor includes one of the following: adjusting the transmission power of the transmission layer corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor for each codeword in the codebook; adjusting the transmission power of the transmission layer corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor for a portion of the codewords in the codebook; wherein each codeword corresponds to at least one transmission layer.

[0044] In conjunction with some embodiments of the second aspect, in some embodiments, the amplitude scaling factor includes at least one of the following: a first scaling factor greater than a scaling threshold; and a second scaling factor less than or equal to the scaling threshold.

[0045] In conjunction with some embodiments of the second aspect, in some embodiments, the strongest transmission layer is determined based on the received information in the transmission layer corresponding to the spatial basis vector, including one of the following:

[0046] The strongest transmission layer is determined based on the received information from the transmission layers with transmission power corresponding to the spatial basis vector scaled by the first scaling factor and the transmission layers with transmission power corresponding to the spatial basis vector scaled by the second scaling factor.

[0047] The strongest transmission layer determines a layer from the transmission power corresponding to the spatial basis vector scaled by the first scaling factor, based on the received information.

[0048] The strongest transmission layer is determined based on the received information, among the transmission layers with transmission power corresponding to the spatial basis vector scaled by the second scaling factor.

[0049] In conjunction with some embodiments of the second aspect, in some embodiments, the received information includes at least one of the following: a maximum value of the received power; a maximum value of the signal-to-interference-plus-noise ratio.

[0050] Thirdly, embodiments of this disclosure provide a transport layer determination apparatus, the apparatus comprising: a processing module configured to determine the transmission power of a transport layer corresponding to a spatial basis vector based on an amplitude scaling factor of the spatial basis vector; determine received information based on the spatial basis vector and the transmission power; determine the strongest transport layer in the transport layer based on the received information; and a sending module configured to send first indication information to a network device, wherein the first indication information is used to indicate the strongest transport layer.

[0051] Fourthly, embodiments of this disclosure provide a transport layer determination apparatus, executed by a network device, the apparatus comprising: a receiving module configured to receive first indication information sent by a terminal; wherein the first indication information is used to indicate the strongest transport layer, the strongest transport layer is determined based on the received information in the transport layer corresponding to the spatial basis vector, the received information is determined based on the spatial basis vector and the transmission power of the transport layer corresponding to the spatial basis vector, and the transmission power is determined based on the amplitude scaling factor of the spatial basis vector.

[0052] Fifthly, embodiments of this disclosure provide a terminal comprising: one or more processors; wherein the terminal is configured to perform the transport layer determination method according to any one of the first aspects and optional embodiments thereof.

[0053] In a sixth aspect, embodiments of this disclosure provide a network device comprising: one or more processors; wherein the network device is configured to perform the transport layer determination method according to any one of the alternative embodiments of the second aspect.

[0054] In a seventh aspect, embodiments of this disclosure provide a communication system including a terminal and a network device, wherein the terminal is configured to implement the transport layer determination method of any one of the first aspects and optional embodiments of the first aspect, and the network device is configured to implement the transport layer determination method of any one of the second aspects and optional embodiments of the second aspect.

[0055] Eighthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any one of the first aspect, optional embodiments of the first aspect, the second aspect, and optional embodiments of the second aspect, the transport layer determination method.

[0056] In a ninth aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform any one of the first aspect, the optional embodiments of the first aspect, the second aspect, and the optional embodiments of the second aspect, the transport layer determination method.

[0057] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform any one of the first aspect, optional embodiments of the first aspect, the second aspect, and optional embodiments of the second aspect, the transport layer determination method.

[0058] It is understood that the aforementioned transport layer determination apparatus, communication equipment, communication system, storage medium, program product, and computer program 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.

[0059] This disclosure provides a transport layer determination method and apparatus, a terminal, a network device, and a storage medium. In some embodiments, the terms "transport layer determination method" and "information processing method," "communication method," etc., can be used interchangeably; the terms "transport layer determination apparatus" and "information processing apparatus," "communication apparatus," etc., can be used interchangeably; and the terms "information processing system," "communication system," etc., can be used interchangeably.

[0060] 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.

[0061] 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. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0062] 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.

[0063] In the embodiments of this disclosure, unless otherwise stated, elements expressed in the singular, such as “a,” “an,” “the,” “the,” “the,” “the,” “the,” “the,” “this,” etc., may mean “one and only one,” or “one or more,” “at least one,” etc.

[0064] For example, when using articles such as "a", "an", and "the" in translation, the noun following the article can be understood as either a singular or a plural form.

[0065] In the embodiments disclosed herein, "multiple" refers to two or more.

[0066] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0067] 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.

[0068] In some embodiments, the notation "A or B" 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). The same applies when there are more branches such as A, B, C, etc.

[0069] The prefixes such as "first" and "second" in the embodiments of this disclosure are only for distinguishing different descriptive objects and do not constitute restrictions on the position, order, priority, number or content of the descriptive objects. For the description of the descriptive objects, please refer to the description in the claims or the context of the embodiments. The use of prefixes should not constitute unnecessary restrictions.

[0070] For example, if the descriptive object is "field," then 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 "level," then 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; there can be one or more. For example, in "first device," the number of "devices" can be one or more. In addition, objects modified by different prefixes can be the same or different. For example, if the descriptive object 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 descriptive object 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.

[0071] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0072] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0073] 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”.

[0074] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.

[0075] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0076] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "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," and "bandwidth part (BWP)" can be used interchangeably.

[0077] In some embodiments, the terms "terminal", "terminal device", "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", and "client" can be used interchangeably.

[0078] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0079] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0080] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0081] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0082] 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.

[0083] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0084] As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102, wherein the network device includes at least one of the following: an access network device and a core network device.

[0085] 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.

[0086] 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.

[0087] 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).

[0088] 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.

[0089] 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.

[0090] 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.

[0091] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​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 can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0092] 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), 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).

[0093] In some embodiments, in certain communication scenarios, network devices and terminals can communicate based on codebooks, such as codebook-based CSI (Channel State Information) feedback.

[0094] For example, taking a Type 1 codebook as an example, with the total power normalized to 1 and the total number of transmission layers being 3, the codebook structure is as follows:

[0095] Where (3) indicates that the rank of the transmission is 3, then the total number of transmission layers is 3 (one column in the matrix corresponds to one transmission layer), P CSI-RS This indicates the corresponding port number of the CSI-RS (Channel State Information Reference Signal), v l,m and v l',m' It is a spatial basis vector. is the phase coefficient, l and l' are the spatial basis vector indices in the horizontal dimension, and m and m' are the spatial basis vector indices in the vertical dimension.

[0096] In some embodiments, the spatial basis vectors can be two-dimensional discrete Fourier transform (2D-DFT) vectors.

[0097] In some embodiments, spatial basis vectors may cause the beams communicating between network devices and terminals to generate side lobes or grating lobes in undesired directions, resulting in relatively high gain in undesired directions, which may affect other systems that share the same resources (e.g., frequency domain resources and / or time domain resources) with the communication process.

[0098] For example, when the main lobe of a beam (also known as the main beam) points above the horizon to provide services to terminals in high-rise buildings, the side lobes or grating lobes will point higher into the sky, causing interference to satellite communications.

[0099] In some embodiments, to address the aforementioned interference problem, the gain in undesired directions can be reduced by imposing amplitude constraints on the spatial basis vectors.

[0100] The magnitude constraint can be a constraint on the spatial basis vector set. For example, each spatial basis vector set contains X1 and X2 spatial vector machines. X1 and X2 are values ​​configured for the network device, where X1 represents the number of spatial basis vectors in the horizontal dimension and X2 represents the number of spatial basis vectors in the vertical dimension.

[0101] For example, if a network device is configured with 8 antenna ports in the horizontal dimension (N1=8), 4 antenna ports in the vertical dimension (N2=4), an oversampling factor of 4 in the horizontal dimension (O1=4), and an oversampling factor of 4 in the vertical dimension (O2=4), then the total number of candidate spatial basis vectors is N1*N2*O1*O2=512. Taking X1=4 and X2=2 as an example, meaning each group of spatial basis vectors has 8 vectors, then the candidate spatial basis vectors can be divided into 512 / 8=64 groups. For each group of spatial basis vectors, a 3-bit amplitude scaling factor can be configured.

[0102] For example, taking a network device indicating the amplitude scaling factor using 3 bits as an example, the range of values ​​for the amplitude scaling factor can be...

[0103] This embodiment is mainly applicable to the case where the total number of transport layers is 1. For cases where the total number of transport layers is greater than 1, please refer to the following embodiment.

[0104] In some embodiments, when the total number of transport layers is greater than 1, for the i-th spatial basis vector, if the network device has configured an amplitude scaling factor, the power corresponding to the spatial basis vector can be determined based on the amplitude scaling factor. For example, the power value can be set to... v represents the total number of transport layers, s i Let represent the amplitude scaling factor corresponding to the i-th spatial basis vector; if the network device does not have an amplitude scaling factor configured, then the power corresponding to the spatial basis vector can be determined in the traditional way.

[0105] In some embodiments, as described above For example, the spatial basis vectors corresponding to the first and third columns of the matrix are both v. l,m Therefore, the power scaling factors of the spatial basis vectors in these two columns are the same.

[0106] For example, network devices for v l,m The indicated power scaling factor is For v l',m' No amplitude constraint was applied (or what could be called the indicated amplitude scaling factor). ). So v l',m' The corresponding power is determined to be 1 / 3 according to the traditional method, v l,m The corresponding power of a transmission layer is 1 / 8, v l,m The power of the two corresponding transmission layers is 1 / 4, so the total power of the three transmission layers corresponding to the codebook is 1 / 3 + 1 / 4 = 7 / 12 < 1, leaving a power surplus of 5 / 12. This surplus power can be further allocated in the transmission layers, and the specific allocation method is not limited in this disclosure.

[0107] In some embodiments, the terminal can determine the strongest transport layer in the transport layer corresponding to the spatial basis vector, and indicate the strongest transport layer to the network device through Layer Indication (LI) information.

[0108] However, the terminal determines the strongest transmission layer based on the premise that the transmission power of each transmission layer is equal. As can be seen from the previous embodiments, when the network device indicates the amplitude scaling factor for the spatial basis vector, the power of each transmission layer is not necessarily equal. If the strongest transmission layer is still determined based on the premise that the transmission power of each transmission layer is equal, the strongest transmission layer determined by the terminal will be inconsistent with the actual strongest transmission layer, thereby affecting the system performance.

[0109] Figure 2 is an interactive schematic diagram illustrating a transport layer determination method according to an embodiment of the present disclosure.

[0110] As shown in Figure 2, the transport layer determination method may include the following steps:

[0111] In step S201, the terminal determines the transmission power of the transmission layer corresponding to the spatial basis vector based on the amplitude scaling factor of the spatial basis vector.

[0112] In some embodiments, a spatial basis vector may correspond to one transport layer or multiple transport layers. For example, in the codebook described above... In the matrix, v l,m Corresponding to two transport layers, v l',m' It corresponds to a transport layer.

[0113] In some embodiments, the amplitude scaling factor may be indicated by the network device or determined based on predefined rules, and this disclosure does not limit the method of determining the amplitude scaling factor.

[0114] For example, in the previous embodiments Taking a matrix (e.g., a precoding matrix) as an example, the first transport layer (corresponding to the first column of the matrix) and the third transport layer (corresponding to the third column of the matrix) use the same spatial basis vector v. l,m (For example, denoted as spatial basis vector #1), the second transport layer (corresponding to the third column in the matrix) uses another spatial basis vector v. l',m' (For example, denoted as spatial basis vector #2).

[0115] For example, spatial basis vector #1 and spatial basis vector #2 come from different spatial basis vector groups. The amplitude scaling factor configured by the network device for spatial basis vector #1 is... The magnitude scaling factor configured for spatial basis vector #2 is: Or, if no magnitude scaling factor is configured for spatial basis vector #2, then in the codebook In the example, the sum of the transmission power of the first and third transmission layers corresponding to the spatial basis vector #1 is 1 / 4, and the transmission power of the second transmission layer corresponding to the spatial basis vector is 1 / 3.

[0116] However, in this case, the sum of the transmission power of the three transmission layers is 1 / 8 + 1 / 3 + 1 / 8 = 7 / 12 < 1. Therefore, in some embodiments, in order to ensure that the sum of the transmission power of the three transmission layers is 1, the transmission power of the second transmission layer can be determined to be equal to 1 - (1 / 8 + 1 / 8) = 3 / 4.

[0117] Based on the above example, after scaling the transmission power of the transmission layer according to the amplitude scaling factor, the terminal can determine the transmission power of the transmission layer corresponding to the spatial basis vector in at least one of the following two ways:

[0118] Method 1: For the transmission layer whose transmission power corresponds to the spatial basis vector scaled by the scaling factor, determine the transmission power of the transmission layer as the scaled transmission power. For the transmission layer whose transmission power is not scaled, determine the transmission power as the unscaled transmission power (for example, in the previous embodiment, determine the transmission power of the second transmission layer as 1 / 3).

[0119] Method 2: For the transmission layer corresponding to the transmission power of the spatial basis vector scaled by the scaling factor, determine the transmission power of the transmission layer as the scaled transmission power, and then calculate the transmission power of the transmission layer with unscaled transmission power (which may be a partial or complete unscaled transmission power transmission layer) based on the normalized power value (e.g., 1) and the scaled transmission power (e.g., the transmission power of the second transmission layer is determined to be 3 / 4 in the previous embodiment).

[0120] Method 2 involves adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor. Specific embodiments are described later.

[0121] In step S202, the terminal can determine the received information based on the spatial basis vector and the transmission power.

[0122] In some embodiments, the strongest transport layer is determined in the transport layer corresponding to the spatial basis vector based on the received information.

[0123] In some embodiments, the strongest transport layer is determined in the transport layer corresponding to the spatial basis vector based on the received information, including at least one of the following:

[0124] Based on the maximum value of the received power of the received information, the strongest transmission layer is determined in the transmission layer corresponding to the spatial basis vector;

[0125] Based on the maximum value of the signal-to-interference-plus-noise ratio (SINR) of the received information, the strongest transmission layer is determined in the transmission layer corresponding to the spatial basis vector.

[0126] For example, consider the terminal determining the strongest transmission layer among the transmission layers corresponding to the spatial basis vectors based on the maximum value of the received power (e.g., the received power for a reference signal such as CSI-RS). For instance, the power corresponding to the i-th spatial basis vector is b. i The corresponding transmission power is denoted as p. i p i It can be equal to the power scaling factor s i The square of the maximum received power can be denoted as: H represents downlink channel information (e.g., downlink channel matrix).

[0127] The terminal can first determine the maximum received power corresponding to each spatial basis vector, and then, based on the maximum received power of each spatial basis vector, determine the strongest transmission layer among the transmission layers corresponding to the spatial basis vectors. For example, it can iterate through... Sure If the spatial basis vector corresponding to the maximum value is found, then the transport layer corresponding to that spatial basis vector is the strongest transport layer.

[0128] For example, in the codebook mentioned above In the middle, the spatial basis vector #2 corresponds to If the value is the largest, then we can determine the transport layer corresponding to spatial basis vector #2, that is, the second transport layer is the strongest transport layer.

[0129] According to embodiments of this disclosure, when a terminal determines that the transmission power of the transmission layer needs to be scaled according to the amplitude scaling factor, it can first determine the transmission power of the transmission layer corresponding to the spatial basis vector according to the amplitude scaling factor, for example, according to the amplitude scaling factor for the spatial basis vector, and then determine the transmission power of the transmission layer corresponding to the scaled spatial basis vector (in this case, the transmission power of different transmission layers may not be equal), and then determine the strongest transmission layer among the transmission layers corresponding to the spatial basis vector based on the transmission power.

[0130] Therefore, it is possible to avoid the problem of determining the strongest transmission layer based on the assumption that the transmission power of each transmission layer is equal when scaling the transmission power based on the amplitude scaling factor, which would lead to a discrepancy between the strongest transmission layer determined by the terminal and the actual strongest transmission layer.

[0131] In some embodiments, after determining the strongest transport layer, the terminal may send indication information (e.g., referred to as first indication information) to the network device, indicating the strongest transport layer to the network device. The network device can determine the strongest transport layer based on the indication information sent by the terminal.

[0132] For example, the strongest transport layer can be used as information in the Channel Quality Indicator (CQI).

[0133] In some embodiments, the terminal may adjust the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor.

[0134] For example, in the previous embodiment, when the transmission power of the second transmission layer corresponding to the spatial basis vector is determined to be 1 / 3, the sum of the transmission power of the three transmission layers is 1 / 8 + 1 / 3 + 1 / 8 = 7 / 12 < 1, meaning that 5 / 12 of the transmission power is not fully utilized.

[0135] In this embodiment, the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor can be adjusted. For example, the transmission power of the transmission layer with unscaled transmission power (which may be part or all of the transmission layers with unscaled transmission power) can be calculated based on the normalized power value (e.g., 1) and the scaled transmission power to ensure that the sum of the transmission power of all transmission layers is equal to the normalized power value, thereby ensuring that the transmission power can be fully utilized.

[0136] For example, based on the previous embodiment, in order to ensure that the sum of the transmission power of the three transmission layers is 1, the transmission power of the second transmission layer can be determined to be equal to 1 - (1 / 8 + 1 / 8) = 3 / 4, that is, the transmission power of the second transmission layer is adjusted from 1 / 3 to 3 / 4.

[0137] Since the transmission power has been adjusted, the method for determining the received information based on the amplitude scaling factor and the transmission power also needs to be changed accordingly. For example, it can be changed to determine the received information based on the amplitude scaling factor and the adjusted transmission power.

[0138] For example in calculation At that time, for the transmission layer with adjusted transmission power, the transmission power b involved in the calculation... i It is the adjusted transmission power (e.g., 3 / 4), not the original transmission power (e.g., 1 / 3).

[0139] The following examples illustrate how to adjust the transmission power of the transmission layer corresponding to a spatial basis vector that has not been scaled by an amplitude scaling factor.

[0140] For example, assuming the total number of transport layers is 5, the codebook structure can be as follows:

[0141] in, is the phase coefficient, l, l' and l” are the spatial basis vector indices in the horizontal dimension, and m, m' and m” are the spatial basis vector indices in the vertical dimension.

[0142] For example, the first transport layer (corresponding to the first column in the matrix) and the second transport layer (corresponding to the second column in the matrix) use the same spatial basis vector v. l,m (For example, denoted as spatial basis vector #1), the third transport layer (corresponding to the third column in the matrix) and the fourth transport layer (corresponding to the fourth column in the matrix) use the same spatial basis vector v. l',m' (For example, denoted as spatial basis vector #2), the fifth transport layer uses another spatial basis vector v. l”,m” (For example, denoted as spatial basis vector #3).

[0143] For example, the magnitude scaling factors corresponding to spatial basis vectors #1 and #3 are: The magnitude scaling factor corresponding to spatial basis vector #3 is In this case, the transmission layers corresponding to spatial basis vectors #1 and #3 both belong to the transmission layers corresponding to spatial basis vectors that have not been scaled by the amplitude scaling factor. Based on this, the transmission power of the transmission layers corresponding to all spatial basis vectors that have not been scaled by the amplitude scaling factor can be adjusted, or the transmission power of the transmission layers corresponding to some spatial basis vectors that have not been scaled by the amplitude scaling factor can be adjusted.

[0144] For example, taking the adjustment of the transmission power of the transmission layer corresponding to some spatial basis vectors that have not been scaled by the amplitude scaling factor as an example, the transmission layer corresponding to some spatial basis vectors that have not been scaled by the amplitude scaling factor can be the transmission layer corresponding to spatial basis vector #1.

[0145] Since the transmission power of the transmission layer corresponding to spatial basis vector #1 is adjusted only, and not the transmission power of the transmission layer corresponding to spatial basis vector #3, and the transmission power of the transmission layer corresponding to spatial basis vector #3 (the fifth transmission layer) is not scaled, the transmission power of the fifth transmission layer can be determined to be 1 / 5 based on the transmission mode. The transmission power of the transmission layers corresponding to spatial basis vector #2 (the third and fourth transmission layers) is scaled. If we scale up, the sum of the transmission power of the third and fourth transmission layers is 1 / 8. Then, the sum of the transmission power of the transmission layers corresponding to spatial basis vectors #2 and #3 is 1 / 16 + 1 / 16 + 1 / 5 = 13 / 40. There is still 27 / 40 of the transmission power remaining, which can be evenly distributed to the transmission layer corresponding to spatial basis vector #1. Then, the transmission power corresponding to the first and second transmission layers is 27 / 80. That is, the transmission power of each transmission layer corresponding to spatial basis vector #1 can be adjusted to 27 / 80.

[0146] As can be seen from the previous embodiments, the terminal determines the received information based on the amplitude scaling factor and transmission power under two preconditions:

[0147] Condition 1: Do not adjust the transmission power of the transmission layer corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor;

[0148] Condition 2: Adjust the transmission power of the transmission layer corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor.

[0149] Therefore, it is necessary to clarify under what conditions the operation of determining the received information based on the amplitude scaling factor and transmission power should be performed.

[0150] In some embodiments, the network device may send a second indication message to the terminal, and determine the operation of receiving information based on the amplitude scaling factor and the transmission power under the condition of condition one, or determine the operation of receiving information based on the amplitude scaling factor and the transmission power under the condition of condition two.

[0151] The terminal can receive a second indication message sent by the network device. If the second indication message indicates an operation to determine the received information based on the amplitude scaling factor and transmission power under condition one, the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor can be left unchanged. If the second indication message indicates an operation to determine the received information based on the amplitude scaling factor and transmission power under condition two, the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor can be adjusted first, and then the operation to determine the received information can be performed based on the amplitude scaling factor and transmission power (including the adjusted transmission power).

[0152] For example, the indication information sent by the network device to the terminal includes at least one of the following: System Information Block (SIB), Radio Resource Control (RRC) message, Downlink Control Information (DCI), and Media Access Control Control Element (MAC CE).

[0153] In some embodiments, the terminal may determine the operation of receiving information based on the amplitude scaling factor and the transmission power under condition one, or determine the operation of receiving information based on the amplitude scaling factor and the transmission power under condition two.

[0154] Furthermore, the terminal can send a third indication message to the network device. If the terminal has not adjusted the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, the third indication message can instruct the terminal to determine the operation of receiving information based on the amplitude scaling factor and the transmission power under condition one. If the terminal has adjusted the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, the third indication message can instruct the terminal to determine the operation of receiving information based on the amplitude scaling factor and the transmission power under condition two.

[0155] In some embodiments, the terminal performs the operation of determining the received information based on the amplitude scaling factor and the transmission power under the premise of condition one or condition two, which may be specified by predefined rules.

[0156] For example, a predefined rule stipulates that under condition one, the operation of determining the received information based on the amplitude scaling factor and the transmission power is performed, and the terminal may not adjust the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; a predefined rule stipulates that under condition two, the operation of determining the received information based on the amplitude scaling factor and the transmission power is performed, and the terminal may first adjust the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, and then determine the received information based on the amplitude scaling factor and the transmission power (including the adjusted transmission power).

[0157] In some embodiments, adjusting the transmission layer transmission power corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor includes one of the following:

[0158] The transmission power of the transmission layer corresponding to the spatial basis vector of each codeword in the codebook that has not been scaled by the amplitude scaling factor is adjusted.

[0159] The transmission power of the transmission layer corresponding to the spatial basis vectors of some codewords in the codebook that have not been scaled by the amplitude scaling factor is adjusted.

[0160] Each of the codewords corresponds to at least one of the transport layers.

[0161] For example, a codebook may include one or more codewords, such as a codeword corresponding to at least one transport layer in the codebook, or a codeword corresponding to four transport layers.

[0162] When the codebook includes multiple codewords, the terminal adjusts the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor. This adjustment can be made for the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor for each codeword, or it can be made for the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor for only some codewords.

[0163] For example, consider a codebook containing two codewords (codeword #1 and codeword #2). If the transmission layers corresponding to codeword #1 and codeword #2 both contain transmission layers corresponding to spatial basis vectors that have not been scaled by the amplitude scaling factor, then the terminal can adjust the transmission power of the transmission layers corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor for both codeword #1 and codeword #2; or, the terminal can adjust the transmission power of the transmission layers corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor for either codeword #1 or codeword #2.

[0164] If the terminal only adjusts the transmission power of the transmission layer corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor for a portion of the codewords, that is, it does not adjust the transmission power of the transmission layer corresponding to the spatial basis vectors that have not been scaled by the amplitude scaling factor for another portion of the codewords, the strongest transmission layer of each transmission layer can be determined first based on the traditional method. For example, the strongest transmission layer of each transmission layer can be preliminarily determined based on the premise that the transmission power of each transmission layer is equal (for example, denoted as the preliminary strongest transmission layer).

[0165] If the initial strongest transmission layer is in the other part of the codewords, then the terminal can perform the operation of determining the received information based on the amplitude scaling factor and transmission power for this other part of the codewords, under the premise of condition one, and then determine the strongest transmission layer, or determine the strongest transmission layer for each transmission layer under the premise that the transmission power of each transmission layer is equal.

[0166] As can be seen from this embodiment, the terminal determines the received information based on the amplitude scaling factor and transmission power. In addition to the two preconditions (condition one and condition two) mentioned in the previous embodiment, other preconditions may also exist, such as condition three: the transmission power of each transmission layer is equal. Under the condition of condition three, the terminal can determine the received information according to the equal transmission power of each transmission layer, and then determine the strongest transmission layer based on the received information.

[0167] For example, the strongest transmission layer determined based on condition three can be used for the transmission of phase tracking reference signals (PTRS).

[0168] For example, the indication information sent by the network device to the terminal may include 1 bit, where a value of 0 indicates that the strongest transport layer is determined based on condition one, and a value of 1 indicates that the strongest transport layer is determined based on condition three. Alternatively, the indication information sent by the network device to the terminal may include 2 bits, where a value of 00 indicates that the strongest transport layer is determined based on condition one, a value of 01 indicates that the strongest transport layer is determined based on condition two, and a value of 10 indicates that the strongest transport layer is determined based on condition three. A value of 11 can be reserved.

[0169] In some embodiments, the amplitude scaling factor includes at least one of the following:

[0170] The first scaling factor that is greater than the scaling threshold;

[0171] A second scaling factor that is less than or equal to the scaling threshold.

[0172] For example, the scaling threshold can be a threshold indicated by the network device or a threshold specified by a predefined rule.

[0173] For example, the scaling threshold can be equal to 1, 1 / v, or r. i / v is equivalent, where v is the number of transport layers in the codebook matrix, and r i The number of transport layers corresponding to the i-th spatial basis vector.

[0174] In some embodiments, determining the strongest transport layer among the transport layers corresponding to the spatial basis vectors based on the received information includes one of the following:

[0175] Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vector scaled by the first scaling factor and the transmission layers with transmission power corresponding to the spatial basis vector scaled by the second scaling factor.

[0176] Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vectors scaled by the second scaling factor.

[0177] For example, the strongest transport layer can be determined among all transport layers. In this case, all transport layers include both the transport layer with the transport power corresponding to the spatial basis vector scaled by the first scaling factor and the transport layer with the transport power corresponding to the spatial basis vector scaled by the second scaling factor.

[0178] For example, the strongest transport layer can be determined only in the transport layers corresponding to spatial basis vectors scaled by a relatively small scaling factor (e.g., less than or equal to the scaling threshold, such as a second scaling factor). Then, the terminal can determine the strongest transport layer in the transport layers with the transport power corresponding to the spatial basis vectors scaled by the second scaling factor.

[0179] It should be noted that the range of the strongest transmission layer is not limited to the situation described in the above embodiments. For example, the strongest transmission layer may be determined only in the transmission layer corresponding to the spatial basis vector scaled by a relatively large scaling factor (e.g., greater than the scaling threshold, such as the first scaling factor). In this case, the terminal may determine the strongest transmission layer in the transmission layer corresponding to the transmission power of the spatial basis vector scaled by the first scaling factor.

[0180] The communication method involved in the embodiments of this disclosure may include at least one of steps S201 to S202. For example, step S201 may be implemented as a standalone embodiment, step S202 may be implemented as a standalone embodiment, and step S201+S202 may be implemented as a standalone embodiment, but is not limited thereto.

[0181] In some embodiments, steps S201 and S202 may be performed in an alternate order or simultaneously.

[0182] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0183] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0184] In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to.

[0185] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0186] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0187] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0188] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0189] Corresponding to the aforementioned embodiments of the transport layer determination method, this disclosure also provides embodiments of the transport layer determination apparatus.

[0190] Figure 3 is a schematic block diagram illustrating a transport layer determination apparatus according to an embodiment of the present disclosure. For example, the transport layer determination apparatus can be applied to a terminal. As shown in Figure 3, the transport layer determination apparatus includes: a processing module 301, a sending module 302, and a receiving module 303.

[0191] In some embodiments, the processing module is configured to determine the transmission power of the transport layer corresponding to the spatial basis vector based on the magnitude scaling factor of the spatial basis vector; determine received information based on the spatial basis vector and the transmission power; determine the strongest transport layer in the transport layer based on the received information; and the sending module is configured to send first indication information to the network device, wherein the first indication information is used to indicate the strongest transport layer.

[0192] In some embodiments, the processing module is further configured to adjust the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; wherein, the processing module is configured to determine the received information based on the amplitude scaling factor and the adjusted transmission power.

[0193] In some embodiments, the apparatus further includes: a receiving module configured to receive second indication information sent by a network device; wherein, if the second indication information determines the strongest transmission layer without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, then the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor is not adjusted; or, if the second indication information indicates that the strongest transmission layer is determined by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, then the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor is adjusted.

[0194] In some embodiments, the sending module is further configured to send third indication information to the network device; wherein the third indication information instructs the terminal to determine the strongest transmission layer without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; or, the third indication information instructs the terminal to determine the strongest transmission layer by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor.

[0195] In some embodiments, the processing module is further configured to determine the strongest transmission layer according to predefined rules without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, and then not adjust the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; or, if the strongest transmission layer is determined according to predefined rules while adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, then adjust the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor.

[0196] In some embodiments, the processing module is configured to: adjust the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor for each codeword in the codebook; adjust the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor for some codewords in the codebook; wherein each codeword corresponds to at least one transmission layer.

[0197] In some embodiments, the amplitude scaling factor includes at least one of the following: a first scaling factor greater than a scaling threshold; and a second scaling factor less than or equal to the scaling threshold.

[0198] In some embodiments, the processing module is configured as one of the following:

[0199] Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vector scaled by the first scaling factor and the transmission layers with transmission power corresponding to the spatial basis vector scaled by the second scaling factor.

[0200] Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vectors scaled by the second scaling factor.

[0201] Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vectors scaled by the second scaling factor.

[0202] In some embodiments, the received information includes at least one of the following: the maximum value of the received power; the maximum value of the signal-to-interference-plus-noise ratio.

[0203] Figure 4 is a schematic block diagram illustrating a transport layer determination apparatus according to an embodiment of the present disclosure. For example, the transport layer determination apparatus can be applied to a network device. As shown in Figure 4, the transport layer determination apparatus includes: a receiving module 401, a sending module 402, and a processing module 403.

[0204] In some embodiments, the receiving module is configured to receive first indication information sent by the terminal; wherein the first indication information is used to indicate the strongest transmission layer, the strongest transmission layer is determined in the transmission layer corresponding to the spatial basis vector based on the received information, the received information is determined based on the spatial basis vector and the transmission power of the transmission layer corresponding to the spatial basis vector, and the transmission power is determined based on the amplitude scaling factor of the spatial basis vector.

[0205] In some embodiments, the transmission power includes: the transmission power of the transmission layer corresponding to the spatial basis vector that has been adjusted but not scaled by the amplitude scaling factor; wherein the received information is determined based on the amplitude scaling factor and the adjusted transmission power.

[0206] In some embodiments, the apparatus further includes: a sending module configured to send second indication information to the terminal, wherein the second indication information is used to indicate that the strongest transmission layer is determined without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor, or the second indication information indicates that the strongest transmission layer is determined by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor.

[0207] In some embodiments, the receiving module is further configured to receive third indication information sent by the terminal; wherein the third indication information instructs the terminal to determine the strongest transmission layer without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; or, the third indication information instructs the terminal to determine the strongest transmission layer by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor.

[0208] In some embodiments, the apparatus further includes: a processing module configured to determine the strongest transmission layer by determining, according to predefined rules, the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor; or, to determine, according to predefined rules, the strongest transmission layer by determining, the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by an amplitude scaling factor.

[0209] In some embodiments, adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor includes one of the following: adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor for each codeword in the codebook; adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor for some codewords in the codebook; wherein each codeword corresponds to at least one transmission layer.

[0210] In some embodiments, the amplitude scaling factor includes at least one of the following: a first scaling factor greater than a scaling threshold; and a second scaling factor less than or equal to the scaling threshold.

[0211] In some embodiments, the strongest transport layer is determined based on the received information in the transport layer corresponding to the spatial basis vector, including one of the following:

[0212] The strongest transmission layer is determined based on the received information from the transmission layers with transmission power corresponding to the spatial basis vector scaled by the first scaling factor and the transmission layers with transmission power corresponding to the spatial basis vector scaled by the second scaling factor.

[0213] The strongest transmission layer determines a layer from the transmission power corresponding to the spatial basis vector scaled by the second scaling factor, based on the received information.

[0214] The strongest transmission layer is determined based on the received information, among the transmission layers with transmission power corresponding to the spatial basis vector scaled by the second scaling factor.

[0215] In some embodiments, the received information includes at least one of the following: the maximum value of the received power; the maximum value of the signal-to-interference-plus-noise ratio.

[0216] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0217] 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.

[0218] 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.

[0219] 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).

[0220] Figure 5A is a schematic diagram of the structure of the communication device 5100 proposed in an embodiment of this disclosure. The communication device 5100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 5100 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.

[0221] As shown in Figure 5A, the communication device 5100 includes one or more processors 5101. The processor 5101 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 communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 5100 can be used to execute any of the above methods. Optionally, one or more processors 5101 can be used to invoke instructions to cause the communication device 5100 to execute any of the above methods.

[0222] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 performs at least one of the communication steps (e.g., steps S201, S202, but not limited thereto) in the above method, such as sending and / or receiving, while the processor 5101 performs at least one of other steps (e.g., steps S201, S202, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0223] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data. Optionally, all or part of the memories 5103 may be located outside the communication device 5100. In optional embodiments, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuits 5104 are connected to the memories 5102, and the interface circuits 5104 can be used to receive data from the memories 5102 or other devices, and can be used to send data to the memories 5102 or other devices. For example, the interface circuits 5104 can read data stored in the memories 5102 and send the data to the processor 5101.

[0224] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in this disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5A. 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.

[0225] Figure 5B is a schematic diagram of the structure of chip 5200 according to an embodiment of this disclosure. For cases where the communication device 5100 can be a chip or a chip system, please refer to the schematic diagram of chip 5200 shown in Figure 5B, but it is not limited thereto.

[0226] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.

[0227] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 5200 further includes one or more memories 5203 for storing data. Optionally, all or part of the memories 5203 may be located outside of chip 5200. Optionally, interface circuit 5202 is connected to memory 5203, and interface circuit 5202 can be used to receive data from memory 5203 or other devices, and interface circuit 5202 can be used to send data to memory 5203 or other devices. For example, interface circuit 5202 can read data stored in memory 5203 and send the data to processor 5201.

[0228] In some embodiments, the interface circuit 5202 performs at least one of the communication steps (e.g., steps S201, S202, but not limited thereto) in the above-described method, such as sending and / or receiving. For example, the interface circuit 5202 performing the communication steps (e.g., sending and / or receiving) in the above-described method refers to the interface circuit 5202 performing data interaction between the processor 5201, the chip 5200, the memory 5203, or the transceiver device. In some embodiments, the processor 5201 performs at least one of other steps (e.g., steps S201, S202, but not limited thereto).

[0229] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0230] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 5100, cause the communication device 5100 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.

[0231] This disclosure also provides a program product that, when executed by the communication device 5100, causes the communication device 5100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0232] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A method for determining the transport layer, characterized in that, The method, executed by a terminal, includes: The transmission power of the transmission layer corresponding to the spatial basis vector is determined based on the magnitude scaling factor of the spatial basis vector. The received information is determined based on the spatial basis vector and the transmission power; The strongest transport layer is determined in the transport layer based on the received information; Send a first indication message to the network device, wherein the first indication message is used to indicate the strongest transport layer.

2. The method according to claim 1, characterized in that, The method further includes: Adjust the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; The step of determining the received information based on the amplitude scaling factor and the transmission power includes: The received information is determined based on the amplitude scaling factor and the adjusted transmission power.

3. The method according to claim 1, characterized in that, The method further includes: Receive the second instruction information sent by the network device; Wherein, if the second indication information determines the strongest transmission layer without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, then the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor is not adjusted; or, if the second indication information indicates that the strongest transmission layer is determined by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, then the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor is adjusted.

4. The method according to claim 1, characterized in that, The method further includes: Send a third instruction message to the network device; Wherein, the third indication information instructs the terminal to determine the strongest transmission layer without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; or, the third indication information instructs the terminal to determine the strongest transmission layer by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor.

5. The method according to claim 1, characterized in that, The method further includes: If the strongest transmission layer is determined according to predefined rules without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, then the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor is not adjusted; or, if the strongest transmission layer is determined according to predefined rules without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, then the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor is adjusted.

6. The method according to claim 2, characterized in that, The adjustment of the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor includes one of the following: The transmission power of the transmission layer corresponding to the spatial basis vector of each codeword in the codebook that has not been scaled by the amplitude scaling factor is adjusted. Adjust the transmission power of the transmission layer corresponding to the spatial basis vectors of some codewords in the codebook that have not been scaled by the amplitude scaling factor; Each of the codewords corresponds to at least one of the transport layers.

7. The method according to any one of claims 1 to 6, characterized in that, The amplitude scaling factor includes at least one of the following: The first scaling factor that is greater than the scaling threshold; A second scaling factor that is less than or equal to the scaling threshold.

8. The method according to claim 7, characterized in that, The step of determining the strongest transmission layer among the transmission layers corresponding to the spatial basis vectors based on the received information includes one of the following: Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vector scaled by the first scaling factor and the transmission layers with transmission power corresponding to the spatial basis vector scaled by the second scaling factor. Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vectors scaled by the first scaling factor. Based on the received information, the strongest transmission layer is determined among the transmission layers with transmission power corresponding to the spatial basis vectors scaled by the second scaling factor.

9. The method according to any one of claims 1 to 8, characterized in that, The received information includes at least one of the following: The maximum value of the received power; The maximum value of the signal-to-interference-plus-noise ratio.

10. A method for determining the transport layer, characterized in that, Performed by a network device, the method includes: The first instruction information sent by the receiving terminal; Wherein, the first indication information is used to indicate the strongest transmission layer, which is determined in the transmission layer corresponding to the spatial basis vector based on the received information. The received information is determined based on the spatial basis vector and the transmission power of the transmission layer corresponding to the spatial basis vector. The transmission power is determined based on the amplitude scaling factor of the spatial basis vector.

11. The method according to claim 10, characterized in that, The transmission power includes: the transmission power of the transmission layer corresponding to the spatial basis vector that has been adjusted but not scaled by the amplitude scaling factor; The received information is determined based on the amplitude scaling factor and the adjusted transmission power.

12. The method according to claim 10, characterized in that, The method further includes: Send a second indication message to the terminal, wherein the second indication message is used to indicate that the strongest transmission layer is determined without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor, or the second indication message indicates that the strongest transmission layer is determined by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor.

13. The method according to claim 10, characterized in that, The method further includes: Receive the third instruction information sent by the terminal; Wherein, the third indication information instructs the terminal to determine the strongest transmission layer without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; or, the third indication information instructs the terminal to determine the strongest transmission layer by adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor.

14. The method according to claim 10, characterized in that, The method further includes: The strongest transmission layer is determined by the terminal according to predefined rules without adjusting the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor; or, the strongest transmission layer is determined by the terminal according to predefined rules with the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor.

15. The method according to claim 11, characterized in that, The adjustment of the transmission power of the transmission layer corresponding to the spatial basis vector that has not been scaled by the amplitude scaling factor includes one of the following: The transmission power of the transmission layer corresponding to the spatial basis vector of each codeword in the codebook that has not been scaled by the amplitude scaling factor is adjusted. Adjust the transmission power of the transmission layer corresponding to the spatial basis vectors of some codewords in the codebook that have not been scaled by the amplitude scaling factor; Each of the codewords corresponds to at least one of the transport layers.

16. The method according to any one of claims 10 to 15, characterized in that, The amplitude scaling factor includes at least one of the following: The first scaling factor that is greater than the scaling threshold; A second scaling factor that is less than or equal to the scaling threshold.

17. The method according to claim 16, characterized in that, The strongest transmission layer is determined based on the received information in the transmission layer corresponding to the spatial basis vectors, and includes one of the following: The strongest transmission layer is determined based on the received information from the transmission layers with transmission power corresponding to the spatial basis vector scaled by the first scaling factor and the transmission layers with transmission power corresponding to the spatial basis vector scaled by the second scaling factor. The strongest transmission layer determines a layer from the transmission power corresponding to the spatial basis vector scaled by the first scaling factor, based on the received information. The strongest transmission layer is determined based on the received information, among the transmission layers with transmission power corresponding to the spatial basis vector scaled by the second scaling factor.

18. The method according to any one of claims 10 to 17, characterized in that, The received information includes at least one of the following: The maximum value of the received power; The maximum value of the signal-to-interference-plus-noise ratio.

19. A transport layer determination apparatus, characterized in that, The device includes: The processing module is configured to determine the transmission power of the transmission layer corresponding to the spatial basis vector based on the magnitude scaling factor of the spatial basis vector; determine the received information based on the spatial basis vector and the transmission power; and determine the strongest transmission layer in the transmission layer based on the received information. The sending module is configured to send first indication information to the network device, wherein the first indication information is used to indicate the strongest transport layer.

20. A transport layer determination apparatus, characterized in that, Performed by a network device, the apparatus includes: The receiving module is configured to receive the first indication information sent by the terminal; Wherein, the first indication information is used to indicate the strongest transmission layer, which is determined in the transmission layer corresponding to the spatial basis vector based on the received information. The received information is determined based on the spatial basis vector and the transmission power of the transmission layer corresponding to the spatial basis vector. The transmission power is determined based on the amplitude scaling factor of the spatial basis vector.

21. A terminal, characterized in that, include: One or more processors; The terminal is used to execute the transport layer determination method according to any one of claims 1 to 9.

22. A network device, characterized in that, include: One or more processors; The network device is used to perform the transport layer determination method according to any one of claims 10 to 18.

23. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the transport layer determination method according to any one of claims 1 to 18.

24. A program product, characterized in that, When the above-described program product is executed by a communication device, the communication device performs the transport layer determination method according to any one of claims 1 to 18.

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