Communication methods, communication device, communication system, storage medium, and program product

Abstract

A communication method, a communication device, a communication system, a storage medium, and a program product. The method, which is performed by a terminal, comprises: determining, at least according to a count of physical uplink shared channel (PUSCH) transmission layers and / or a PUSCH modulation order, a first count of resource units required for sending a second part of channel state information (CSI-part 2) on a PUSCH, wherein the CSI-part 2 is not channel coded

Description

Communication methods, communication equipment, communication systems, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, communication device, communication system, storage medium, and program product. Background Technology

[0002] In large-scale Multiple Input Multiple Output (MIMO) systems, obtaining accurate Channel Status Information (CSI) is crucial for improving system performance. Current fifth-generation mobile communication technology (5G) th 5G (5G) mobile communication technology systems have designed CSI (Computer-Side Input) reporting methods based on different types of high-precision Type II codebooks. Compared with low-precision Type I codebooks, high-precision Type II codebooks can significantly improve system performance. However, high-precision Type II codebooks also greatly increase feedback overhead. How to improve the reliability of CSI feedback is an unsolved problem. Summary of the Invention

[0003] To improve the reliability of CSI feedback, embodiments of this disclosure provide a communication method, communication device, communication system, storage medium, and program product.

[0004] According to a first aspect of the present disclosure, a communication method is proposed, executed by a terminal, the method comprising: determining a first number of resource units required to transmit a second part of channel state information (CSI-part 2) on the PUSCH based at least on the number of transmission layers of the Physical Uplink Shared Channel (PUSCH) and / or the modulation order of the PUSCH, wherein the CSI-part 2 is not channel-coded.

[0005] According to a second aspect of the present disclosure, a communication method is provided, performed by a network device, the method comprising: sending a PUSCH transport layer number and / or a PUSCH modulation order to a terminal, wherein the PUSCH transport layer number and the PUSCH modulation order are both used by the terminal to determine a first number of resource units required to transmit CSI-part 2 on the PUSCH, wherein the CSI-part 2 is not channel-coded.

[0006] According to a third aspect of the present disclosure, a communication device is provided for performing the communication method described in the first or second aspect.

[0007] According to a fourth 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 communication method described in the first aspect, and the network device is configured to implement the communication method described in the second aspect.

[0008] According to a fifth 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 communication method described in the first or second aspect.

[0009] According to a sixth aspect of the present disclosure, a program product is provided, including at least one of a program and instructions, wherein the program and instructions, when executed by a communication device, implement the communication method described in the first or second aspect.

[0010] By adopting the above technical solution, at least the following beneficial technical effects can be achieved:

[0011] When CSI-part 2 is not channel-coded, the first number of resource units required to transmit CSI-part 2 on the PUSCH can be determined at least based on the number of PUSCH transmission layers and / or the PUSCH modulation order. This allows for accurate determination of the CSI feedback overhead and improves the reliability of channel state information reporting. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0013] Figure 1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0014] Figure 1B is a schematic diagram of a model processing method provided according to an embodiment of the present disclosure.

[0015] Figure 1C is a schematic diagram of another model processing according to an embodiment of the present disclosure.

[0016] Figure 2A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0017] Figure 2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0018] Figure 3A is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0019] Figure 3B is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0020] Figure 4 is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure.

[0021] Figure 5 is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure.

[0022] Figure 6A is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure.

[0023] Figure 6B is a schematic diagram of the structure of a chip according to an embodiment of the present disclosure. Detailed Implementation

[0024] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.

[0025] In a first aspect, embodiments of this disclosure propose a communication method executed by a terminal, the method comprising: determining, at least based on the number of PUSCH transport layers and / or the PUSCH modulation order, a first number of resource units required to transmit a second part of channel state information (CSI-part 2) on the PUSCH, wherein the CSI-part 2 is not channel-coded.

[0026] In the above embodiments, when CSI-part 2 is not channel-coded, the first number of resource units required to transmit CSI-part 2 on PUSCH can be determined at least based on the number of PUSCH transmission layers and / or the PUSCH modulation order. This allows for accurate determination of CSI feedback overhead, enabling efficient resource allocation of channel state information and improving the reliability of channel state information reporting.

[0027] In conjunction with some embodiments of the first aspect, in some embodiments, the CSI-part 2 includes first information, and the method further includes: measuring the channel state information reference signal sent by the network device; inputting the measurement data into a first model for compression, and using the output of the first model as the first information, or processing the output of the first model to obtain the first information.

[0028] Optionally, the first model may also include channel coding.

[0029] In the above embodiments, by measuring the channel state information reference signal and compressing the measurement data using the first model to generate the first information in CSI-part 2, the feedback overhead of channel state information can be effectively reduced, and the feedback accuracy and transmission efficiency of channel state information can be improved. Furthermore, it solves the problem in related technologies where the number of resource elements (REs) occupied by CSI-part 2 is inaccurate when channel coding is not performed on CSI-part 2.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first number of resource units required to transmit CSI-part 2 on the PUSCH based at least on the number of PUSCH transport layers and / or the PUSCH modulation order includes: determining a first parameter based on the number of PUSCH transport layers and the PUSCH modulation order, the first parameter being used to control resource allocation; and determining the first number based on the first parameter.

[0031] In the above embodiments, the first parameter for controlling resource allocation is determined by combining the number of PUSCH transmission layers and the modulation order, thereby accurately calculating the number of resource units required for CSI-part 2, realizing dynamic optimization of resource allocation, and further improving the resource utilization efficiency and transmission performance of the communication system.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first parameter based on the number of PUSCH transmission layers and the PUSCH modulation order includes: determining the calculation method of the first parameter based on the transmission mode of the PUSCH; and determining the first parameter based on the number of PUSCH transmission layers, the PUSCH modulation order, and the calculation method of the first parameter.

[0033] In the above embodiments, the calculation method of the first parameter is determined according to the transmission mode of PUSCH, and the first parameter is calculated in combination with the number of transmission layers and modulation order of PUSCH, thereby realizing fine-grained control of resource allocation and optimizing the resource allocation method.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, the method of determining the calculation method of the first parameter based on the transmission mode of the PUSCH includes: if the transmission mode of the PUSCH is a single-slot transmission mode or a first repeated transmission mode, the calculation method of the first parameter is as follows:

[0035] in, This refers to the first parameter, where r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks. r This represents the size of the r-th code block. This represents the second number of resource units required to transmit uplink control information (UCI) on the l-th orthogonal frequency division multiplexing (OFDM) symbol, where l ranges from 0 to 1. N represents the total number of symbols used in PUSCH. L Q represents the number of transport layers in the PUSCH protocol. M This indicates the PUSCH modulation order.

[0036] In the above embodiments, the first parameter calculated according to the above calculation method can optimize resource allocation and improve resource utilization when the PUSCH transmission mode is single-slot transmission mode or first repeated transmission mode.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the method of determining the calculation method of the first parameter based on the transmission method of PUSCH includes:

[0038] The PUSCH transmission mode is a multi-slot transmission mode, and the calculation method for the first parameter is as follows:

[0039] in, This refers to the first parameter, where r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks. r This represents the size of the r-th code block. This represents the second number of resource units required to transmit UCI on the l-th OFDM symbol, where l ranges from 0 to 1. N represents the total number of symbols used in PUSCH. L Q represents the number of transport layers in the PUSCH protocol. M N represents the PUSCH modulation order. s This indicates the total number of time slots occupied by PUSCH.

[0040] In the above embodiments, the first parameter calculated according to the above calculation method can optimize resource allocation and improve resource utilization when the PUSCH transmission mode is multi-slot transmission mode.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the method of determining the calculation method of the first parameter based on the transmission method of PUSCH includes:

[0042] The PUSCH transmission method is the second repeated transmission method, and the calculation method for the first parameter is as follows:

[0043] in, This refers to the first parameter, where r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH Kr represents the total number of code blocks, and Kr represents the size of the r-th code block. This represents the third number of resource units required to transmit UCI on the l-th OFDM symbol in a nominally repeated PUSCH transmission without segmentation. The value of l ranges from 0 to... N represents the total number of symbols used in PUSCH.L Q represents the number of transport layers in the PUSCH protocol. M This indicates the PUSCH modulation order.

[0044] In the above embodiments, the first parameter calculated according to the above calculation method can optimize resource allocation and improve resource utilization when the PUSCH transmission mode is the second repeated transmission mode.

[0045] In the above embodiments, when the terminal reports CSI-part 2 to the network device, if channel coding is not performed for CSI-part 2, the terminal can make the calculated first parameter more compatible with the PUSCH transmission mode by using different calculation methods for the first parameter under different PUSCH transmission modes. This can improve the accuracy of the first parameter calculated by the terminal, thereby optimizing resource allocation and improving the reliability of CSI-part 2 reporting.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first number of resource units required to transmit CSI-part 2 on the PUSCH, at least based on the PUSCH transport layer number and / or PUSCH modulation order, includes:

[0047] The first quantity is determined according to the following calculation method:

[0048] Among them, Q′ CSI-2 O represents the first quantity. CSI-2 L represents the number of bits corresponding to CSI-part 2. CSI-2 N represents the number of bits corresponding to the Cyclic Redundancy Check (CRC) in CSI-part 2. L Q represents the number of transport layers in the PUSCH protocol. M This indicates the PUSCH modulation order, and α represents the scaling factor. This represents the second number of resource units required to transmit UCI on the l-th OFDM symbol. This indicates the total number of symbols occupied by PUSCH, and Q′ACK / CG-UCI represents Q′. ACK or Q′ CG-UCI Q′ ACK This indicates the fourth number of resource units, or Q′, required to transmit a Hybrid Automatic Repeat Request-ACK (HARQ-ACK). ACK Q′ represents the fifth number of resource units required to transmit HARQ-ACK and CG-UCI configured permitted uplink control information. CG-UCI This indicates the sixth number of resource units required to transmit CG-UCI.

[0049] In the above embodiments, for different PUSCH transmission methods, the number of REs required for each layer's CSI-part 2 transmission can be accurately determined according to the above method. This reduces terminal processing complexity and improves resource allocation efficiency.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, before determining the first number of resource units required to transmit CSI-part 2 on the PUSCH based at least on the number of PUSCH transport layers and / or the PUSCH modulation order, the method includes: receiving a first index sent by a network device, the first index indicating a first parameter for controlling resource allocation; determining that the first index is within a first index range, or that the first parameter indicated by the first index is a first value, the first value indicating that the terminal determines the first number based at least on the number of PUSCH transport layers and / or the PUSCH modulation order.

[0051] In the above embodiments, the terminal is flexibly triggered to determine the first number of operations based on the number of PUSCH transmission layers and / or modulation order, thereby realizing flexible triggering and precise control of resource allocation decisions and improving the adaptability and flexibility of the system.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, before determining the first number of resource units required to transmit CSI-part 2 on the PUSCH based at least on the number of PUSCH transport layers and / or the PUSCH modulation order, the method includes: receiving second information sent by a network device, the second information instructing the terminal to determine the first number based at least on at least one of the number of PUSCH transport layers and the PUSCH modulation order.

[0053] In the above embodiments, by receiving the second information sent by the network device, the terminal is flexibly instructed to determine the first quantity based on the number of PUSCH transmission layers and / or modulation order, thereby realizing the flexible configuration of resource allocation triggering conditions and enhancing the system's adaptability to different communication scenarios.

[0054] In conjunction with some embodiments of the first aspect, in some embodiments, before the measurement data is input into the first model for compression, the method includes: receiving third information sent by a network device, the third information instructing the terminal to process the measurement data according to the first model.

[0055] In the above embodiments, the network device can further implicitly instruct the terminal to process the measurement data according to the first model by instructing the terminal to determine the first quantity based on the number of PUSCH transmission layers and / or modulation order. This flexible instruction method not only reduces signaling overhead, but also improves the transmission efficiency of instruction information and the flexibility of system resource allocation.

[0056] Secondly, embodiments of this disclosure propose a communication method executed by a network device, the method comprising: sending a PUSCH transport layer number and / or a PUSCH modulation order to a terminal, wherein the PUSCH transport layer number and the PUSCH modulation order are both used by the terminal to determine a first number of resource units required to transmit CSI-part 2 on the PUSCH, wherein the CSI-part 2 is not channel-coded.

[0057] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending a first index to the terminal, the first index being within a first index range, or the first parameter indicated by the first index being a first value, the first parameter being used by the terminal to control resource allocation, and the first value being used to instruct the terminal to determine the first quantity at least according to the number of PUSCH transport layers and / or the number of PUSCH modulation orders.

[0058] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending second information to the terminal, the second information instructing the terminal to determine the first quantity based on at least one of the PUSCH transmission layer number and the PUSCH modulation order.

[0059] In some embodiments, in conjunction with the second aspect, the method further includes: sending third information to the terminal, the third information instructing the terminal to compress the measurement data of the channel state information reference signal according to the first model.

[0060] Thirdly, embodiments of this disclosure propose a communication method executed by a communication system, the communication system including a terminal and a network device, the method including: the network device sending the PUSCH transmission layer number and / or PUSCH modulation order to the terminal; the terminal determining at least the first number of resource units required to transmit CSI-part 2 on the PUSCH based on the PUSCH transmission layer number and / or PUSCH modulation order, wherein the CSI-part 2 is not channel-coded.

[0061] Fourthly, this disclosure provides a communication device, which is a terminal, and the terminal includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute an optional implementation of the first aspect.

[0062] Fifthly, embodiments of this disclosure provide a communication device, which is a network device, and the network device includes at least one of a transceiver module and a processing module; wherein the network device is used to execute the optional implementation of the second aspect.

[0063] In a sixth aspect, embodiments of this disclosure provide a communication device, which is a terminal, comprising: one or more processors; wherein the terminal is used to execute an optional implementation of the first aspect.

[0064] In a seventh aspect, embodiments of this disclosure provide a communication device, which is a network device, comprising: one or more processors; wherein the network device is used to execute an optional implementation of the second aspect.

[0065] Eighthly, embodiments of this disclosure provide a communication system comprising: a terminal and a network device; wherein the terminal is configured to perform the method described in the optional implementation of the first aspect, and the network device is configured to perform the method described in the optional implementation of the second aspect.

[0066] Ninthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the optional implementations of the first and second aspects.

[0067] In a tenth aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first and second aspects.

[0068] In an eleventh aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in alternative implementations of the first and second aspects.

[0069] In a twelfth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and second aspects above.

[0070] It is understood that the aforementioned terminals, network devices, communication devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0071] This disclosure provides a communication method, a communication device, a communication system, a storage medium, and a program product. In some embodiments, the terms "communication method" and "information processing method," "PUSCH resource determination method based on bilateral AI model compressed CSI reporting," etc., can be used interchangeably.

[0072] 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. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0073] 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.

[0074] In this disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular or a plural expression.

[0075] In the embodiments of this disclosure, "multiple" refers to two or more.

[0076] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0077] 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 whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0078] 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 whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); 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, and C.

[0079] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0080] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0081] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0082] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0083] 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”.

[0084] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0085] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0091] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0092] 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.

[0093] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1A, the communication system 100 may include a terminal 101 and a network device 102.

[0094] In some embodiments, terminal 101 includes, for example, 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, but is not limited thereto.

[0095] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0096] 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 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, but is not limited thereto.

[0097] In some embodiments, the access network device is a base station. Optionally, the base station may be, for example, a macro base station, a micro base station (also called a small station), a relay station, an access point, a 5 / 6G base station or a future base station, a satellite, a Transmitting and Receiving Point (TRP), a Transmitting Point (TP), a mobile switching center, or other equipment that performs base station functions in a communication system, etc., and this disclosure does not specifically limit this type of device. For ease of description, in all embodiments of this disclosure, the apparatus that provides wireless communication functions for terminal devices is collectively referred to as a network device or a base station.

[0098] In some embodiments, the access network device is a core network device. Optionally, the core network device can be a single device, including a first network element, a second network element, etc., or it can be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. The network element can be virtual or physical. The core network includes, for example, at least one of the Evolved Packet Core (EPC), 5G / 6G Core Network (5G CN / 6G CN), and Next Generation Core (NGC).

[0099] 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.

[0100] 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.

[0101] 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.

[0102] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1A are illustrative. The communication system may include all or some of the main bodies in FIG1A, or it may include other main bodies outside of FIG1A. 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.

[0103] 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), 6th generation mobile communication system (6G), 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).

[0104] In some embodiments, the feedback overhead of CSI increases with the increase of antenna size and bandwidth in MIMO systems. To reduce CSI feedback overhead or improve CSI feedback accuracy, we conducted research on CSI compressed feedback based on an AI / ML model. As shown in Figure 1B, the AI / ML-based CSI generation model (hereinafter referred to as the encoder) located on the terminal side implements CSI compressed feedback of the input data, while the AI / ML-based CSI recovery model (hereinafter referred to as the decoder) located on the network side implements CSI recovery. Research shows that CSI compressed feedback based on an AI / ML model can further improve CSI feedback accuracy or reduce CSI feedback overhead.

[0105] In some embodiments, whether it's codebook-based CSI feedback or AI / ML model-based CSI compression feedback, the CSI obtained by the UE needs to be channel-coded before being sent to the base station. CSI feedback and channel coding are performed separately and independently. This separation leads to quantization loss in CSI compression, and the redundant design introduced by channel coding consumes more communication resources. Furthermore, a mismatch between the channel coding and channel state in CSI feedback can cause a "cliff effect" and latency issues. To address these problems, we further investigated CSI feedback with joint source channel coding. Joint source channel coding CSI feedback leverages the characteristics of semantic communication systems, treating CSI feedback as a source. Then, through end-to-end AI / ML model optimization, CSI compression feedback and recovery are achieved by deploying an encoder and decoder model on the terminal and base station sides respectively. The encoder implements both CSI compression and channel coding functions. As shown in Figure 1C, the compressed CSI output from the encoder is modulated and transmitted to the network (NW) side via a wireless channel. The demodulated data is then input to the decoder at the NW side, and the CSI is recovered from the decoder. Research indicates that this AI / ML model design can improve CSI feedback accuracy or reduce CSI feedback overhead.

[0106] In some embodiments, CSI reporting in two parts, CSI-part 1 and CSI-part 2, can be supported. CSI-part 1 and CSI-part 2 are encoded independently, and CSI-part 1 can be transmitted before CSI-part 2. The length of CSI-part 2 can be determined based on CSI-part 1.

[0107] It should be explained that CSI-part 1 is basic information with a relatively fixed payload size (which can be considered fixed) and can be used to determine the information bits of CSI-part 2. CSI-part 2 is extended information with more detailed content, and its payload size is influenced by CSI-part 1.

[0108] CSI-part 1 may include at least one of the following:

[0109] Rank Indicator (RI);

[0110] Channel Quality Indicator (CQI);

[0111] CQI Reference Indicator (CRI);

[0112] Non-zero broadband amplitude coefficient;

[0113] CSI-part 2 may include at least one of the following:

[0114] Precoding Matrix Indicator (PMI);

[0115] Layer Indicator (LI);

[0116] A more detailed CQI than the CQI in CSI-part 1.

[0117] When CSI-part 1 and part 2 are carried on the Physical Uplink Shared Channel (PUSCH), the number of resource elements or resource particles (REs) occupied by CSI-part 2 is defined as follows, depending on the different PUSCH transmission methods.

[0118] Method 1: For PUSCH repetition type A transmissions carrying data transmission or single-slot PUSCH transmissions, the number of REs occupied by CSI-part 2 is defined as follows:

[0119] The explanations of each parameter are as follows:

[0120] Q′ CSI-2 This indicates the number of REs in CSI-part 2.

[0121] O CSI-2This indicates the number of bits occupied by CSI-part 2.

[0122] L CSI-2 This indicates the number of bits used for the Cyclic Redundancy Check (CRC) in CSI-part 2.

[0123] This represents the rate compensation factor, whose value is indicated by higher-layer signaling configuration and / or downlink control information (DCI). Table 1 below lists the possible values ​​for the rate compensation factor. This represents the index value corresponding to different bitrate compensation factors.

[0124] C UL-SCH This indicates the number of code blocks in the transmitted data.

[0125] K r This represents the size of the r-th code block.

[0126] If Q′ACK / CG-UCI=Q′ ACK This indicates that a Hybrid Automatic Repeat request-Acknowledgement (HARQ-ACK) is transmitted on the PUSCH and does not include Configured Grant Uplink Control Information (CG-UCI). Where Q′ ACK This indicates the number of REs occupied by the HARQ-ACK transmission, and the number of bits occupied by the HARQ-ACK is greater than 2; otherwise, Q′ ACK =0.

[0127] If Q′ACK / CG-UCI=Q′ ACK This indicates that HARQ-ACK and CG-UCI are transmitted on the PUSCH. Where Q′ ACK This indicates the number of REs per layer for HARQ-ACK and CG-UCI transmissions.

[0128] If Q′ACK / CG-UCI=Q′ CG-UCI This indicates that CG-UCI is transmitted on the PUSCH and HARQ-ACK is not included. Where Q′ CG-UCI This indicates the number of REs required for each layer of CG-UCI transmission.

[0129] Q′ CSI-1 This indicates the number of REs per layer in CSI-part 1 transmission.

[0130] This represents the number of REs used in the transmission of UCI in the l-th OFDM symbol. This indicates the total number of symbols occupied by the PUSCH, if the symbol transmits the Demodulation Reference Signal (DMRS). otherwise, and These represent the number of subcarriers on the PUSCH scheduling bandwidth and the number of subcarriers occupied by PT-RS on the l-th symbol, respectively.

[0131] α represents the scaling factor for higher-level signaling configuration.

[0132] Table 1, Method 2: For PUSCH transmissions carrying multiple time slots of data, the number of REs occupied by CSI-part 2 is defined as follows:

[0133] Where, N s This indicates the number of time slots indicated by the Downlink Control Information (DCI). For explanations of the remaining parameters, please refer to the explanation in Method 1 above; they will not be repeated here.

[0134] Method 3: For PUSCH repetition type B transmissions carrying data, the number of REs occupied by CSI-part 2 is defined as follows:

[0135] The parameters are explained below:

[0136] This represents the number of REs (Representations) occupied by the l-th OFDM symbol transmission UCI in a repetitive PUSCH transmission without segmentation. This indicates the total number of symbols in a PUSCH, where the symbol in a repeating PUSCH without segmentation is transmitted via DMRS. otherwise, These represent the number of subcarriers occupied by PT-RS on the l-th symbol in a repetitive PUSCH transmission without segmentation.

[0137] This represents the number of REs occupied by the l-th OFDM symbol transmission UCI in an actual repeated PUSCH transmission. This represents the total number of symbols in actual repeated PUSCH transmissions, where this symbol in the actual repeated PUSCH transmissions carries DMRS. otherwise, These represent the number of subcarriers occupied by PT-RS on the l-th symbol in the actual repeated PUSCH transmission.

[0138] For explanations of the remaining parameters, please refer to the explanations in Method 1 and Method 2 above, which will not be repeated here.

[0139] Method 4: PUSCH transmission without data carrying, the number of REs occupied by CSI-part 2 is defined as follows:

[0140] For an explanation of each parameter, please refer to the explanations in Methods 1 to 4 above, which will not be repeated here.

[0141] In some embodiments, as can be seen from the above, for modes 1 to 4, the number of REs occupied by CSI-part 2 needs to be determined according to the bitrate compensation factor configured or indicated by the NW. The value is determined. This is used to compensate for the channel coding of CSI-part 2, in order to determine the number of REs occupied by CSI-part 2. However, if the above-mentioned bilateral AI model is used to achieve joint compression of CSI source and channel coding, CSI-part 2 no longer needs channel coding. In this case, if the current NW configuration or indication is still used... The value used to determine the number of REs occupied by CSI-part 2 is no longer accurate. Therefore, how to determine the number of REs occupied by CSI-part 2 in the PUSCH resource after compression using the above joint source and channel coding bilateral AI model is an unsolved problem.

[0142] In view of this, this disclosure proposes a communication method for determining the number of REs occupied by CSI-part 2 in the PUSCH resource when no channel coding is performed on CSI-part 2, thereby solving the problem of inaccurate determination of the number of REs occupied by CSI-part 2.

[0143] Here is a brief explanation of some of the terms used in the embodiments of this disclosure:

[0144] 5G NR PUSCH supports repetition, including the following two repetition types:

[0145] PUSCH repetition type A: When a network device configures the PUSCH repetition type of an end device to be PUSCH repetition type A through higher-layer parameters, the end device sends PUSCH using PUSCH repetition type A. The network device will indicate the repetition number - K to the end device. The K repetitions are sequentially allocated across K time slots, and the K time slots use the same symbol allocation. PUSCH repetition type A can support either PUSCH mapping type A or PUSCH mapping type B.

[0146] Among them, PUSCH mapping type A only allows the starting symbol of PUSCH to be the first symbol of the time slot, and does not allow the time domain resources of PUSCH to cross the time slot boundary.

[0147] PUSCH mapping type B allows the starting symbol of PUSCH to be any symbol of the time slot; for PUSCH repetition type A, time domain resources of PUSCH are not allowed to cross time slot boundaries; for PUSCH repetition type B, time domain resources of PUSCH are allowed to cross time slot boundaries, but cannot cross two time slot boundaries consecutively.

[0148] PUSCH repetition type B is used when a network device configures the terminal device's PUSCH repetition type to B via higher-layer parameters. The terminal device then sends PUSCH using PUSCH repetition type B, and the network device instructs the terminal device on the number of repetitions, K. PUSCH repetition type B only supports PUSCH mapping type B. The time-domain resource allocation for PUSCH repetition type B involves two steps: first, determining the nominal repetition; and second, determining the actual repetition.

[0149] In this process, nominal repetitions occur K times, each consisting of L (allocation length) consecutive symbols. The first nominal repetition begins with the symbol indicated by S (start symbol) in the slot indicated by k2 (slot offset, used to determine the slot for PUSCH transmission). The second nominal repetition begins with the symbol following the last symbol of the first nominal repetition, and so on. L, k2, and S are all indicated to the terminal by the network device so that the terminal can determine the time-domain resources for PUSCH transmission.

[0150] Actual repetition: A nominal repetition includes at least one actual repetition. Each actual repetition is a set of all potentially valid symbols available for PUSCH transmission within a time slot. Potentially valid symbols are symbols other than invalid symbols. Invalid symbols include downlink symbols, synchronization signal block (SSB) symbols, symbols indicated by higher-layer signaling, etc. If an actual repetition includes only one symbol, it is ignored.

[0151] The embodiments of this disclosure will now be described in detail.

[0152] Figure 2A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2A, the embodiment of the present disclosure relates to a communication method executed by a communication system 100, and the method includes at least one of the following steps:

[0153] In step S2101, network device 102 sends information to terminal 101 to indicate the PUSCH transmission layer number and PUSCH modulation order.

[0154] In some embodiments, the terminal receives the PUSCH transmission layer number and / or PUSCH modulation order.

[0155] It should be explained that the PUSCH transmission layer number refers to the number of independent data streams transmitted simultaneously in MIMO technology. Each layer corresponds to an independent data stream, and parallel transmission can be achieved through multi-antenna technology.

[0156] The PUSCH modulation order refers to the number of bits carried by each symbol in the modulation scheme.

[0157] In some embodiments, the number of PUSCH transport layers and / or the PUSCH modulation order can be indicated or activated by the network device. When scheduling PUSCH transmission, the network device can indicate parameters such as the number of PUSCH transport layers and / or the PUSCH modulation order to the terminal via Downlink Control Information (DCI). The terminal can determine a first number of resource units (REs) occupied by CSI-part 2 based on parameters configured or indicated by the network device, such as the number of PUSCH transport layers or modulation order, and the number of resources configured by the network device.

[0158] In some embodiments, the number of PUSCH transport layers and the PUSCH modulation order can be used to guide the terminal in transmitting data on the corresponding uplink resources. For example, both the number of PUSCH transport layers and the PUSCH modulation order can be used by the terminal to determine a first number of Resource Elements (REs) required to transmit CSI-part 2 on the PUSCH. It should be noted that this first number is the number corresponding to each transport layer of the PUSCH.

[0159] In some embodiments, the network device can determine the number of PUSCH transport layers and / or the PUSCH modulation order based on information such as RI and CQI reported by the terminal in CSI-part 1.

[0160] In some embodiments, the network device may determine the number of PUSCH transmission layers and / or the PUSCH modulation order based on other factors such as system load, user priority, and spectral efficiency.

[0161] In some embodiments, the network device may determine the number of PUSCH transmission layers and / or the PUSCH modulation order based on CSI-part 1, system load, user priority, spectral efficiency, etc.

[0162] In step S2102, network device 102 sends instruction information to terminal 101.

[0163] In some embodiments, the terminal receives instruction information.

[0164] In some embodiments, the instruction information is used to instruct the terminal on how to calculate the first quantity.

[0165] In some embodiments, the indication information is used to instruct the terminal to determine a first quantity based at least on the number of PUSCH transmission layers and / or the PUSCH modulation order.

[0166] In some embodiments, the indication information is used to instruct the terminal, either explicitly or implicitly, to calculate a first quantity based at least on the number of PUSCH transport layers and / or the PUSCH modulation order.

[0167] In some embodiments, the name of the indication information is not limited. Indication information may be, for example, Radio Resource Control (RRC), Media Access Control-Control Element (MAC-CE), DCI, etc.

[0168] In some embodiments, the indication information includes a first index, wherein the first index is an index of a first parameter, the first parameter being a parameter used to control resource allocation.

[0169] Optionally, if the first index is within the range of the first index, it means that the network device instructs the terminal to determine the first quantity at least according to the number of PUSCH transport layers and / or the number of PUSCH modulation orders.

[0170] For example, suppose the first index is in Table 1. The first index range is [19, 31], or a subset of [19, 31]. The network device sends the first index to the terminal, and the terminal receives the first index. The terminal determines that the first index is within the first index range and triggers the execution of at least one of steps S2103 and S2104.

[0171] Optionally, the first parameter indicated by the first index is a first numerical value. The first numerical value is used to instruct the terminal to determine the first quantity based at least on the number of PUSCH transmission layers and / or the PUSCH modulation order. Alternatively, the first numerical value is used to instruct the terminal to re-determine the first parameter based at least on the number of PUSCH transmission layers and the PUSCH modulation order. That is, the first numerical value is not used as the value of the first parameter in the resource allocation calculation, but is used to trigger the terminal to execute at least one of steps S2103 and S2104.

[0172] Optionally, the first index is in Table 1. The first parameter is from Table 1. In some embodiments, the network device can use the information in Table 1 For any one or more of 19 to 31 The value (i.e., Reserved) is set to the first value, and the first value is the same as that in Table 1. The corresponding existing values ​​are different. The first value in Table 1 is used to indicate that the terminal determines the first quantity at least based on the number of PUSCH transmission layers and / or the PUSCH modulation order, and the value of the first parameter can be recalculated during the process of determining the first quantity at least based on the number of PUSCH transmission layers and / or the PUSCH modulation order. The first value is, for example, 1 or 0 or other symbols, which are not limited in this disclosure.

[0173] For example, when the network device sends a first index to the terminal, the terminal receives the first index. The terminal determines that the first parameter indicated by the first index is a first value, and performs at least one of steps S2103 and S2104. It should be noted that when the terminal determines that the first index indicated by the network device is any value from index 0 to 18 in Table 1, steps S2103 and S2104 are not performed, but the first quantity is determined according to any of the methods 1 to 4 before Figure 2A, which will not be described again here.

[0174] In some embodiments, the indication information is second information. The second information is used to instruct the terminal to determine the first quantity based on at least one of the PUSCH transmission layer number and the PUSCH modulation order.

[0175] For example, the network device sends second information to the terminal, and the terminal receives the second information, triggering the execution of at least one of steps S2103 and S2104.

[0176] In some embodiments, step S2102 may be omitted, and the terminal may autonomously implement the function indicated by step S2102, or the function of step S2102 may be default or set to default.

[0177] In step S2103, terminal 101 determines the first parameter based at least on the number of PUSCH transmission layers and the PUSCH modulation order.

[0178] In some embodiments, the terminal can determine the calculation method of the first parameter based on the transmission method of the PUSCH, and then the terminal can determine the first parameter based on the number of PUSCH transmission layers, the modulation order of the PUSCH, and the calculation method of the first parameter.

[0179] In some embodiments, different PUSCH transmission methods correspond to different calculation methods for the first parameter. Optionally, the PUSCH transmission methods include at least one of the following:

[0180] Single-slot transmission mode;

[0181] Multi-slot transmission mode;

[0182] First repeated transmission method;

[0183] Second repetitive transmission method.

[0184] In some embodiments, the name of the single-slot transmission method is not limited, and it may be, for example, a single-slot PUSCH. It should be explained that the single-slot transmission method means that one time slot processes one transport block (TB), that is, the transport block size (TBS) is determined based on the time domain resources on one time slot, and the TB will be transmitted in one time slot.

[0185] In some embodiments, the name of the multi-slot transmission method is not limited, and it may be, for example, Transport block processing over multiple slots (TBoMS). It should be explained that multi-slot transmission means that multiple time slots process one TB, that is, the TBS is determined based on the time domain resources on multiple time slots, and the TB will be transmitted on these multiple time slots.

[0186] In some embodiments, the name of the first repeat transmission method is not limited, and it may be, for example, PUSCH repeat type A. The definition of the first repeat transmission method is the same as or similar to PUSCH repeat type A, and will not be repeated here.

[0187] In some embodiments, the name of the second repeat transmission method is not limited, and it may be, for example, PUSCH repeat type B. The definition of the second repeat transmission method is the same as or similar to PUSCH repeat type B, and will not be repeated here.

[0188] In some embodiments, the implementation method for determining the calculation method of the first parameter based on the transmission mode of the PUSCH includes: when the transmission mode of the PUSCH is a single-slot transmission mode or a first repetitive transmission mode, the calculation method of the first parameter is determined as follows:

[0189] in, This represents the first parameter, r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks transmitted. r This represents the size of the r-th code block. This represents the second number of resource units required to transmit uplink control information (UCI) on the l-th orthogonal frequency division multiplexing (OFDM) symbol, where l ranges from 0 to 1. N represents the total number of symbols used in PUSCH. L Q represents the transport layer number of PUSCH. M This indicates the PUSCH modulation order.

[0190] In some embodiments, a single-slot transmission mode can be a PUSCH transmission mode that carries a single time slot for data transmission. A first repetition transmission mode can be a PUSCH transmission mode that carries PUSCH repetition type A for data transmission. The total number of code blocks can refer to the total number of code blocks for transmitting data.

[0191] It should be noted that, This indicates the total number of symbols occupied by the PUSCH. If the symbol transmits a Demodulation Reference Signal (DMRS), then... otherwise, in, and These represent the number of subcarriers in the PUSCH scheduling bandwidth and the number of subcarriers occupied by the Phase-Tracking Reference Signal (PT-RS) on the l-th symbol, respectively.

[0192] In some embodiments, the implementation method for determining the calculation method of the first parameter based on the transmission method of PUSCH includes:

[0193] When the PUSCH transmission mode is a multi-slot transmission mode, the calculation method for the first parameter is as follows:

[0194] in, This represents the first parameter, r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks. r This represents the size of the r-th code block. This represents the second number of resource units required to transmit UCI on the l-th OFDM symbol, where l ranges from 0 to 1. N represents the total number of symbols used in PUSCH. L Q represents the transport layer number of PUSCH. M N represents the PUSCH modulation order. s This indicates the total number of time slots occupied by PUSCH.

[0195] In some embodiments, the multi-slot transmission method can be PUSCH transmission carrying multiple time slots of data.

[0196] In some embodiments, the implementation method for determining the calculation method of the first parameter based on the transmission method of PUSCH includes:

[0197] Given that the PUSCH transmission mode is determined to be the second repeated transmission mode, the calculation method for the first parameter is as follows:

[0198] in, This represents the first parameter, r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks. r This represents the size of the r-th code block. This represents the third number of resource units required to transmit UCI on the l-th OFDM symbol in a nominally repeated PUSCH transmission without segmentation. The value of l ranges from 0 to... N represents the total number of symbols used in PUSCH. L Q represents the transport layer number of PUSCH. M This indicates the PUSCH modulation order.

[0199] In some embodiments, the second repetitive transmission method may be a PUSCH repetitive type B transmission carrying data.

[0200] It should be noted that the values ​​of each parameter involved in the calculation method of each of the above-mentioned first parameters can be indicated to the terminal by the network device (e.g., N). s This can be indicated by network devices through downlink control information (DCI), or determined by the terminal based on relevant configurations. For details, please refer to the descriptions of the configuration or indication methods for each parameter in related technologies; these will not be elaborated upon here.

[0201] In some possible implementations, steps S2101 to S2103 can be omitted. For example, if steps S2101 to S2103 are omitted, the network device can calculate the first parameter according to any of the above calculation methods and indicate the first parameter to the terminal. After receiving the first parameter, the terminal executes step S2104.

[0202] In step S2104, terminal 101 determines, at least according to the first parameter, the first number of resource units required to send CSI-part 2 on PUSCH.

[0203] In some embodiments, CSI-part 2 includes first information.

[0204] In some embodiments, the terminal can measure the Channel State Information Reference Signal (CSI RS) sent by the network device, input the measurement data into a first model for compression, and use the output of the first model as the first information; alternatively, the terminal can process the output of the first model to obtain the first information. The processing method may include filtering or similar methods.

[0205] In some embodiments, the first information is, for example, compressed PMI, LI, CQI, etc.

[0206] In some embodiments, CSI-part 2 is not channel-coded.

[0207] Optionally, the first model includes source-channel coding functionality. For example, the first model can compress and channel-code the measurement data. This eliminates the need for channel coding in CSI-part 2, which includes the first information. CSI-part 2, after modulation, can then be transmitted to the network equipment.

[0208] In some embodiments, the first model is an encoder deployed on the terminal side in a bilateral AI model of joint source and channel coding, as shown in Figure 1C.

[0209] In some embodiments, the network device may instruct the terminal to process the measurement data according to a first model. For example, before the terminal inputs the measurement data into the first model for compression, the terminal receives third information sent by the network device, which instructs the terminal to process the measurement data according to the first model.

[0210] In some embodiments, when the network device instructs the terminal to process the measurement data according to the first model, it can be considered that the network device implicitly instructs the terminal to determine, at least based on the PUSCH transmission layer number and / or PUSCH modulation order, the first number of resource units required to transmit CSI-part 2 on the PUSCH. That is, when the network device instructs the terminal to process the measurement data according to the first model, the terminal is triggered to execute at least one of steps S2103 and S2104.

[0211] In some embodiments, before the terminal inputs the measurement data into the first model for compression, the terminal may determine on its own whether to process the measurement data according to the first model.

[0212] In some embodiments, when the terminal processes the measurement data according to the first model, it may further trigger the terminal to determine, at least based on the PUSCH transmission layer number and / or PUSCH modulation order, the first number of resource units required to transmit CSI-part 2 on the PUSCH. That is, when the terminal processes the measurement data according to the first model, at least one of steps S2103 and S2104 is triggered.

[0213] In some embodiments, determining the first number of resource units required to transmit CSI-part 2 on the PUSCH based at least on the first parameter includes: the terminal can determine the calculation method of the first number based on the transmission method of the PUSCH, and then the terminal can determine the first parameter based on the first parameter and the calculation method of the first number.

[0214] In some embodiments, different PUSCH transmission methods correspond to different calculation methods for the first number.

[0215] In some embodiments, when the PUSCH is transmitted in a single-slot transmission mode or a first repetition transmission mode, the first quantity Q′ is calculated using the following formula. CSI-2 :

[0216] In some embodiments, when the PUSCH transmission mode is a multi-slot transmission mode, the first quantity Q′ is calculated using the following formula. CSI-2 :

[0217] In some embodiments, under the second repeated transmission method, the first quantity Q′ is calculated using the following formula. CSI-2 :

[0218] The explanations of each parameter can be found in the parameter explanations in the foregoing embodiments, and will not be repeated here.

[0219] 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.

[0220] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" can be used interchangeably. For example, a codebook can be a collection of one or more codewords / precoding matrices.

[0221] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0222] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0223] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".

[0224] In some embodiments, the terms "synchronization signal (SS)," "synchronization signal block (SSB)," "reference signal (RS)," "pilot," and "pilot signal" can be used interchangeably.

[0225] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0226] In some embodiments, the terms “resource block (RB)”, “physical resource block (PRB)”, “sub-carrier group (SCG)”, “resource element group (REG)”, “PRB pair”, “RB pair”, “resource element (RE)”, and “sub-carrier” can be used interchangeably.

[0227] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) status", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", and "panel" can be used interchangeably.

[0228] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, and “transmission time interval (TTI)” can be used interchangeably.

[0229] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0230] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0231] 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.

[0232] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2104. For example, step S2103 may be implemented as an independent embodiment, step S2104 may be implemented as an independent embodiment, steps S2101 and S2103 may be implemented as independent embodiments, and steps S2103 and S2104 may be implemented as independent embodiments, but are not limited thereto.

[0233] In some embodiments, the order of any two steps S2101 to S2104 can be interchanged or they can be performed simultaneously. For example, the order of steps S2101 and S2102 can be interchanged or they can be performed simultaneously.

[0234] In some embodiments, steps S2101, S2102, and S2104 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0235] In some embodiments, steps S2101 to S2103 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0236] In some embodiments, steps S2102 and S2104 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0237] In some embodiments, steps S2101 and S2102 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0238] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0239] Figure 2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2B, the embodiment of the present disclosure relates to a communication method executed by a communication system 100, and the method includes at least one of the following steps:

[0240] In step S2201, network device 102 sends at least one of the PUSCH transmission layer number and PUSCH modulation order to terminal 101.

[0241] The optional implementation of step S2201 can be found in the optional implementation of step S2101 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0242] In this context, terms such as "send," "instruction," and "activation" can be used interchangeably.

[0243] In step S2202, terminal 101 determines, at least based on the number of PUSCH transmission layers and / or the PUSCH modulation order, the first number of resource units required to transmit CSI-part 2 on the PUSCH.

[0244] In some embodiments, CSI-part 2 includes first information.

[0245] In some embodiments, the terminal can measure the CSI RS sent by the network device, input the measurement data into a first model for compression, and use the output of the first model as the first information; alternatively, the terminal can process the output of the first model to obtain the first information. The processing method can be filtering, calculation, etc.

[0246] For example, the first piece of information is such as PMI, LI, CQI, etc.

[0247] For example, the first piece of information is data used to calculate or indicate PMI, LI, CQI, etc.

[0248] In some embodiments, CSI-part 2 is not channel-coded.

[0249] For example, the first model may include source-channel coding functionality. The first model can compress and channel-code the measurement data. This eliminates the need for channel coding of CSI-part 2, which includes the first information. CSI-part 2, after modulation, can then be transmitted to network equipment.

[0250] In some embodiments, the first model is an encoder deployed on the terminal side in a bilateral AI model of joint source and channel coding, as shown in Figure 1C.

[0251] In some embodiments, the network device may instruct the terminal to process the measurement data according to a first model. For example, before the terminal inputs the measurement data into the first model for compression, the terminal receives third information sent by the network device, which instructs the terminal to process the measurement data according to the first model.

[0252] In some embodiments, when the network device instructs the terminal to process the measurement data according to the first model, it can be considered that the network device implicitly instructs the terminal to determine, at least based on the PUSCH transmission layer number and / or PUSCH modulation order, the first number of resource units required to transmit CSI-part 2 on the PUSCH. That is, when the network device instructs the terminal to process the measurement data according to the first model, the terminal is triggered to execute step S2202.

[0253] In some embodiments, before the terminal inputs the measurement data into the first model for compression, the terminal may determine on its own whether to process the measurement data according to the first model.

[0254] In some embodiments, when the terminal processes the measurement data according to the first model, the terminal may be further triggered to determine, at least based on the PUSCH transmission layer number and / or PUSCH modulation order, the first number of resource units required to transmit CSI-part 2 on the PUSCH. That is, when the terminal processes the measurement data according to the first model, step S2202 is triggered.

[0255] In some embodiments, the terminal may be triggered or instructed to perform step S2202 in other ways. Optional implementations of triggering or instructing the terminal to perform step S2202 can be found in the optional implementations of step S2102 in FIG2A and other related parts in the embodiments involved in FIG2A, which will not be repeated here.

[0256] In some embodiments, for different PUSCH transmission methods, the first parameter can be calculated using different methods based on the number of PUSCH transmission layers and / or the PUSCH modulation order, and then the first quantity can be calculated based on the first parameter using different calculation methods. For specific implementation details, please refer to the optional implementations of steps S2103 and S2104 in FIG2A, as well as other related parts in the embodiments involved in FIG2A, which will not be repeated here.

[0257] In some embodiments, for different PUSCH transmission methods, the first number of REs for each layer of CSI-part 2 transmission can be determined based on the number of PUSCH transmission layers and / or the PUSCH modulation order using the following calculation method:

[0258] Among them, Q′ CSI-2O represents the first quantity. CSI-2 L represents the number of bits corresponding to CSI-part 2. CSI-2 N represents the number of bits corresponding to the Cyclic Redundancy Check (CRC) in CSI-part 2. L Q represents the transport layer number of PUSCH. M This indicates the PUSCH modulation order, and α represents the scaling factor. This represents the second number of resource units required to transmit UCI on the l-th OFDM symbol. This indicates the total number of symbols occupied by PUSCH, and Q′ACK / CG-UCI represents Q′. ACK or Q′ CG-UCI Q′ ACK This indicates the fourth number of resource units, or Q′, required to transmit a Hybrid Automatic Repeat Request-ACK (HARQ-ACK). ACK Q′ represents the fifth number of resource units required to transmit HARQ-ACK and CG-UCI configured permitted uplink control information. CG-UCI This indicates the sixth number of resource units required to transmit CG-UCI.

[0259] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 and S2202. For example, step S2202 may be implemented as a standalone embodiment, but is not limited thereto.

[0260] In some embodiments, step S2201 is optional and may be omitted or replaced in different embodiments.

[0261] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0262] Figure 3A is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3A, the embodiment of the present disclosure relates to a communication method executed by a terminal side, the method including:

[0263] Step S3101: Determine at least the first number of resource units required to transmit CSI-part 2 on the PUSCH based on the number of PUSCH transmission layers and / or the PUSCH modulation order, wherein CSI-part 2 is not channel-coded.

[0264] Optionally, CSI-part 2 includes first information. Optionally, the terminal measures the channel state information reference signal sent by the network device; the measurement data is input into a first model for compression, and the output of the first model is used as the first information; or, the output of the first model is processed to obtain the first information.

[0265] Optionally, determining a first number of resource units required to transmit CSI-part2 on the PUSCH is based at least on the number of PUSCH transmission layers and / or the PUSCH modulation order, including: determining a first parameter based on the number of PUSCH transmission layers and the PUSCH modulation order, the first parameter being used to control resource allocation; and determining a first number based on the first parameter.

[0266] Optionally, determining the first parameter based on the number of PUSCH transmission layers and the PUSCH modulation order includes: determining the calculation method of the first parameter based on the transmission mode of PUSCH; and determining the first parameter based on the number of PUSCH transmission layers, the PUSCH modulation order, and the calculation method of the first parameter.

[0267] Optionally, the calculation method of the first parameter is determined according to the transmission mode of the PUSCH, including: if the transmission mode of the PUSCH is a single-slot transmission mode or a first repetition transmission mode, the calculation method of the first parameter is determined as follows:

[0268] in, This represents the first parameter, r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks. r This represents the size of the r-th code block. This represents the second number of resource units required to transmit uplink control information (UCI) on the l-th orthogonal frequency division multiplexing (OFDM) symbol, where l ranges from 0 to 1. N represents the total number of symbols used in PUSCH. L Q represents the transport layer number of PUSCH. M This indicates the PUSCH modulation order.

[0269] Optionally, the calculation method of the first parameter is determined according to the transmission mode of PUSCH, including: if the PUSCH transmission mode is a multi-slot transmission mode, the calculation method of the first parameter is determined as follows: in, This represents the first parameter, r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks. r This represents the size of the r-th code block. This represents the second number of resource units required to transmit UCI on the l-th OFDM symbol, where l ranges from 0 to 1. N represents the total number of symbols used in PUSCH. L Q represents the transport layer number of PUSCH. MN represents the PUSCH modulation order. s This indicates the total number of time slots occupied by PUSCH.

[0270] Optionally, the calculation method of the first parameter is determined according to the transmission method of PUSCH, including: if the PUSCH transmission method is the second repeated transmission method, the calculation method of the first parameter is determined as follows:

[0271] in, This represents the first parameter, r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks. r This represents the size of the r-th code block. This represents the third number of resource units required to transmit UCI on the l-th OFDM symbol in a nominally repeated PUSCH transmission without segmentation. The value of l ranges from 0 to... N represents the total number of symbols used in PUSCH. L Q represents the transport layer number of PUSCH. M This indicates the PUSCH modulation order.

[0272] Optionally, a first number of resource units required to transmit CSI-part 2 on the PUSCH is determined at least based on the PUSCH transport layer number and / or PUSCH modulation order, including determining the first number according to the following calculation method:

[0273] Among them, Q′ CSI-2 O represents the first quantity. CSI-2 L represents the number of bits corresponding to CSI-part 2. CSI-2 N represents the number of bits corresponding to the Cyclic Redundancy Check (CRC) in CSI-part 2. L Q represents the transport layer number of PUSCH. M This indicates the PUSCH modulation order, and α represents the scaling factor. This represents the second number of resource units required to transmit UCI on the l-th OFDM symbol. This indicates the total number of symbols occupied by PUSCH, and Q′ACK / CG-UCI represents Q′. ACK or Q′ CG-UCI Q′ ACK This indicates the fourth number of resource units, or Q′, required to transmit a Hybrid Automatic Repeat Request-ACK (HARQ-ACK). ACK Q′ represents the fifth number of resource units required to transmit HARQ-ACK and CG-UCI configured permitted uplink control information. CG-UCI This indicates the sixth number of resource units required to transmit CG-UCI.

[0274] Optionally, before determining the first number of resource units required to transmit CSI-part 2 on the PUSCH based at least on the number of PUSCH transmission layers and / or the PUSCH modulation order, the method includes: receiving a first index sent by the network device, the first index indicating a first parameter, the first parameter being used to control resource allocation; determining that the first index is within the range of the first index, or that the first parameter indicated by the first index is a first value, the first value being used to instruct the terminal to determine the first number based at least on the number of PUSCH transmission layers and / or the PUSCH modulation order.

[0275] Optionally, before determining the first number of resource units required to transmit CSI-part 2 on the PUSCH based at least on the number of PUSCH transport layers and / or the PUSCH modulation order, the method includes: receiving second information transmitted by the network device, the second information instructing the terminal to determine the first number based at least on at least one of the number of PUSCH transport layers and the PUSCH modulation order.

[0276] Optionally, before inputting the measurement data into the first model for compression, the method includes: receiving third information sent by a network device, the third information instructing the terminal to process the measurement data according to the first model.

[0277] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0278] Figure 3B is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3B, the embodiment of the present disclosure relates to a communication method executed by a network device, the method including:

[0279] Step S3201: Send the PUSCH transmission layer number and / or PUSCH modulation order to the terminal. Both the PUSCH transmission layer number and PUSCH modulation order are used by the terminal to determine the first number of resource units required to send CSI-part 2 on the PUSCH. CSI-part 2 is not channel coded.

[0280] Optionally, the network device sends a first index to the terminal, the first index being within a first index range, or the first parameter indicated by the first index is a first value, the first parameter being used by the terminal to control resource allocation, and the first value being used to indicate that the terminal determines a first quantity at least according to the number of PUSCH transmission layers and / or the number of PUSCH modulation orders.

[0281] Optionally, the network device sends a second message to the terminal, the second message instructing the terminal to determine a first quantity based on at least one of the PUSCH transmission layer number and the PUSCH modulation order.

[0282] Optionally, the network device sends third information to the terminal, which instructs the terminal to compress the measurement data of the channel state information reference signal according to the first model.

[0283] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0284] This disclosure also provides a communication method for using a code rate compensation factor based on different PUSCH transmission modes when CSI-part 2 does not perform channel coding. Different calculation methods (equivalent to the first parameter in the aforementioned embodiments) and different algorithms for the number of REs occupied by CSI-part 2 in PUSCH resources (equivalent to the first number in the aforementioned embodiments) are used to calculate the number of REs occupied by CSI-part 2 in PUSCH resources.

[0285] In some embodiments, the method for determining the number of REs in the PUSCH resource for CSI-part 2 includes:

[0286] Method 1: Predefined The value determines the number of REs occupied by each layer of CSI-part 2 transmission.

[0287] Optionally, for a PUSCH repetition type A transmission carrying data transmission or a single-slot PUSCH transmission, the number of REs occupied by CSI-part 2 in the PUSCH resource is defined as follows:

[0288] in,

[0289] Where, N L Indicates the PUSCH transport layer number. Q M This indicates the modulation order of PUSCH.

[0290] Optionally, for a PUSCH transmission carrying multiple time slots of data, the number of REs occupied by CSI-part 2 is defined as follows:

[0291] in,

[0292] Optionally, for data PUSCH repetition type B transmissions, the number of REs occupied by CSI-part 2 is defined as follows:

[0293] in,

[0294] Optionally, the above The value can be calculated and determined by the UE according to the above formula, or it can be determined by the NW first according to the above formula. The value is then configured to the UE via higher-level signaling.

[0295] Method 2: For different PUSCH transmission methods, the number of REs for each layer's CSI-part 2 transmission is determined according to the following formula:

[0296] It should be noted that all the above calculation formulas are for illustrative purposes only. Where Q′ CSI-2 The value is at least the same as N L and Q M Related, or at least based on N L and Q M Determine Q′ CSI-2 The value of .

[0297] In some embodiments, the method for indicating whether to use method 1 or method 2 to calculate the number of REs in the PUSCH resource includes:

[0298] CSI-part 2 may be transmitted via PUSCH after channel coding, or it may be transmitted directly via PUSCH without channel coding. The UE needs to determine whether to use method 1 or method 2 described above to determine the number of REs in the PUSCH resource for CSI-part 2, or to use the method in the previous embodiments shown in Figure 2A to determine the number of REs in the PUSCH resource, depending on whether channel coding is performed on CSI-part 2.

[0299] Optionally, an additional first parameter value (i.e., the first numerical value) is introduced in the reserved position in Table 1 above. For example, if its value is set to 1, when the value of the NW higher-layer signaling configuration, MAC-CE, or DCI indication is the first parameter value, the number of REs occupied by CSI-part 2 in the PUSCH resources is determined using either method 1 or method 2 above. Optionally, Table 1 is pre-configured for the terminal.

[0300] Optionally, without introducing an additional first parameter value, when the index value of the predefined NW indicator is one of the values ​​in Table 19 to 31, the number of REs occupied by CSI-part 2 in the PUSCH resource is determined using either Method 1 or Method 2 described above.

[0301] Alternatively, the value of the first parameter may not necessarily be calculated according to the above formula. Instead, the parameter value implicitly indicates the number of REs in the PUSCH resource that CSI-part 2 occupies, based on either method 1 or method 2.

[0302] Optionally, the number of REs occupied by CSI-part 2 in PUSCH resources may be calculated using either method 1 or method 2, implicitly indicated by the reporting method of compressed CSI, or by a signaling indication in NW's RRC / MAC-CE / DCI, indicating that either method 1 or method 2 is used to calculate the number of REs occupied by CSI-part 2 in PUSCH resources.

[0303] Optionally, if the NW configuration CSI feedback parameters indicate the UE's CSI feedback based on the joint CSI source and channel coding of the bilateral AI model, the number of REs occupied by CSI-part 2 in the PUSCH resource can be calculated based on the above method 1 or method 2. Otherwise, the method introduced in Figure 2A is used to calculate the number of REs occupied by CSI-part 2 in the PUSCH resource.

[0304] This disclosure also provides the following embodiments, wherein Embodiment 1 indicates the use of method 1 or method 2, including:

[0305] The value corresponding to the Reserved position in Table 1 above, such as index 19. Set to 1. When NW is configured with the index value via RRC. It was 7 PM. However, the UE receives the configuration of the RRC. At that time, it was not used directly. Instead, it is calculated according to method 1 or method 2 described above. The formula is used to calculate its true value. If method 1 is used, the value must also be determined based on the PUSCH transmission type. The calculation formula.

[0306] Optionally, the index configured by NW via RRC is a value from 19 to 31, or the index value indicated by DCI is a value from 19 to 31, where index 19 to 31 corresponds to... If it is reserved, this can be predefined through the NW and UE protocols, and the UE calculates it using the calculation formula of method 1 or method 2 mentioned above. The value of .

[0307] Example 2, used to indicate the use of method 1 or method 2, includes:

[0308] If the NW instructs the UE to use a compressed feedback model combining CSI source and channel coding for CSI compressed reporting via RRC signaling, then the NW side no longer needs to configure or instruct index values ​​through other signaling. The UE can directly use the formula in method 1 or method 2 above to calculate.

[0309] Optionally, the NW side also configures the index value via other signaling. However, NW indicates via RRC signaling whether to use the formula in method 1 or method 2 above for calculation. Alternatively, the NW side may also configure multiple index values ​​through other signaling. At least one of the index values ​​corresponds to It is used to implicitly instruct the UE to use the formula in mode 1 or mode 2 for calculation. When NW needs to dynamically indicate to the UE whether to use the traditional calculation method, or to use method 1 or method 2 for calculation. The NW can indicate one of multiple index values ​​through a field in the DCI. If the indicated index value corresponds to 0-18, it means that the UE calculates it according to the traditional calculation formula. Otherwise, use method 1 or method 2 for calculation.

[0310] According to any of the embodiments described above, the accurate number of REs occupied by CSI-part 2 in the PUSCH resource can be calculated, ensuring the reliability of CSI reporting.

[0311] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed 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.

[0312] 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.

[0313] 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).

[0314] Figure 4 is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure. The terminal 400 is used to execute any of the above methods. In some embodiments, as shown in Figure 4, the terminal 400 may include at least one of a transceiver module 401, a processing module 402, etc. In some embodiments, the processing module 402 is used to determine, at least based on the PUSCH transmission layer number and / or PUSCH modulation order, a first number of resource units required to transmit CSI-part 2 on the PUSCH, wherein the CSI-part 2 is not channel-coded. Optionally, the transceiver module is used to execute at least one of the communication steps (e.g., steps S2101, S2102, S2201, but not limited thereto) performed by the terminal 101 in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to execute at least one of other steps (e.g., steps S2103, S2104, S2202, but not limited thereto) performed by the terminal 101 in any of the above methods, which will not be elaborated here.

[0315] Figure 5 is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure. The network device 500 is used to perform any of the above methods. In some embodiments, as shown in Figure 5, the network device may include at least one of a transceiver module 501, a processing module 502, etc. In some embodiments, the transceiver module 501 is used to send the PUSCH transmission layer number and / or PUSCH modulation order to the terminal, wherein both the PUSCH transmission layer number and the PUSCH modulation order are used by the terminal to determine a first number of resource units required to transmit CSI-part 2 on the PUSCH, wherein the CSI-part 2 is not channel-coded. Optionally, the transceiver module is used to perform at least one of the communication steps (e.g., steps S2101, S2102, S2201, but not limited thereto) performed by the network device 102 in any of the above methods, which will not be elaborated further here. Optionally, the above processing module is used to execute at least one of the other steps (such as step S2103, step S2104, step S2202, but not limited thereto) executed by the network device 102 in any of the above methods, which will not be elaborated here.

[0316] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0317] In some embodiments, the processing module can be interchanged with the processor, and the transceiver module can be interchanged with the transceiver.

[0318] Figure 6A is a schematic diagram of the structure of a communication device 6100 according to an embodiment of the present disclosure. The communication device 6100 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 6100 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.

[0319] As shown in Figure 6A, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may 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 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0320] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, S2201, but not limited thereto), and the processor 6101 performs at least one of other steps (e.g., steps S2103, S2104, S2202, 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, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0321] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6103 and can be used to receive data and / or instructions from the memory 6103 or other devices, and can be used to send data and / or instructions to the memory 6103 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6103 and send the data and / or instructions to the processor 6101.

[0322] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. 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, programs and / or instructions; (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.

[0323] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of the present disclosure. For cases where the communication device 6100 can be a chip or a chip system, the schematic diagram of chip 6200 shown in Figure 6B can be referenced, but is not limited thereto.

[0324] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0325] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.

[0326] In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps S2101, S2102, and S2201, but not limited thereto). The interface circuit 6202 performing the communication steps such as sending and / or receiving in the above-described method refers, for example, to the interface circuit 6202 performing data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of other steps (e.g., steps S2103, S2104, and S2202, but not limited thereto).

[0327] 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.

[0328] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device 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.

[0329] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0330] 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 communication method characterized by comprising: The method, executed by a terminal, includes: The first number of resource units required to transmit the second part of the channel state information (CSI-part 2) on the PUSCH is determined at least based on the number of transport layers of the Physical Uplink Shared Channel (PUSCH) and / or the modulation order of the PUSCH, wherein the CSI-part 2 is not channel-coded.

2. The method of claim 1, wherein, The CSI-part 2 includes first information, and the method further includes: Measure the channel state information reference signal sent by the network device; The measurement data is input into the first model for compression, and the output of the first model is used as the first information, or the output of the first model is processed to obtain the first information.

3. The method according to claim 1 or 2, characterized in that, Determining the first number of resource units required to transmit CSI-part 2 on the PUSCH, at least based on the PUSCH transport layer number and / or PUSCH modulation order, includes: A first parameter is determined based on the number of PUSCH transmission layers and the PUSCH modulation order, and the first parameter is used to control resource allocation. The first quantity is determined based on the first parameter.

4. The method according to claim 3, characterized in that, The step of determining the first parameter based on the PUSCH transmission layer number and the PUSCH modulation order includes: The calculation method of the first parameter is determined according to the transmission method of PUSCH; The first parameter is determined based on the number of PUSCH transmission layers, the PUSCH modulation order, and the calculation method of the first parameter.

5. The method according to claim 4, characterized in that, The method for determining the calculation of the first parameter based on the transmission method of PUSCH includes: The PUSCH is transmitted in either a single-slot transmission mode or a first-repetition transmission mode. The calculation method for the first parameter is as follows: in, This refers to the first parameter, where r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks. r This represents the size of the r-th code block. This represents the second number of resource units required to transmit uplink control information (UCI) on the l-th orthogonal frequency division multiplexing (OFDM) symbol, where l ranges from 0 to 1. denotes the total number of symbols occupied by the PUSCH, N L denotes the number of layers of the PUSCH transmission, Q M denotes the modulation order of the PUSCH.

6. The method according to claim 4, characterized in that, The method for determining the calculation of the first parameter based on the transmission method of PUSCH includes: The PUSCH transmission mode is a multi-slot transmission mode, and the calculation method for the first parameter is as follows: in, This refers to the first parameter, where r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks. r This represents the size of the r-th code block. This represents the second number of resource units required to transmit UCI on the l-th OFDM symbol, where l ranges from 0 to 1. N represents the total number of symbols used in PUSCH. L Q represents the number of transport layers in the PUSCH protocol. M N represents the PUSCH modulation order. s This indicates the total number of time slots occupied by PUSCH.

7. The method according to claim 4, characterized in that, The method for determining the calculation of the first parameter based on the transmission method of PUSCH includes: The PUSCH transmission method is the second repeated transmission method, and the calculation method for the first parameter is as follows: in, This refers to the first parameter, where r represents the code block index, and the value of r ranges from 0 to C. UL-SCH -1, C UL-SCH K represents the total number of code blocks. r This represents the size of the r-th code block. This represents the third number of resource units required to transmit UCI on the l-th OFDM symbol in a nominally repeated PUSCH transmission without segmentation. The value of l ranges from 0 to... N represents the total number of symbols used in PUSCH. L Q represents the number of transport layers in the PUSCH protocol. M This indicates the PUSCH modulation order.

8. The method according to claim 1 or 2, characterized in that, Determining the first number of resource units required to transmit CSI-part 2 on the PUSCH based at least on the PUSCH transport layer number and / or PUSCH modulation order includes: The first quantity is determined according to the following calculation method: Among them, Q′ CSI-2 O represents the first quantity. CSI-2 L represents the number of bits corresponding to CSI-part 2. CSI-2 N represents the number of bits corresponding to the Cyclic Redundancy Check (CRC) in CSI-part 2. L Q represents the number of transport layers in the PUSCH protocol. M This indicates the PUSCH modulation order, and α represents the scaling factor. This represents the second number of resource units required to transmit UCI on the l-th OFDM symbol. This indicates the total number of symbols used in PUSCH, and Q′ACK / CG-UCI represents Q′. ACK or Q′ CG-UCI Q′ ACK This indicates the fourth number of resource units, or Q′, required to transmit a Hybrid Automatic Repeat Request-ACK (HARQ-ACK). ACK Q′ represents the fifth number of resource units required to transmit HARQ-ACK and CG-UCI configured permitted uplink control information. CG-UCI This indicates the sixth number of resource units required to transmit CG-UCI.

9. The method according to claim 1, characterized in that, Before determining the first number of resource units required to transmit CSI-part 2 on the PUSCH based at least on the PUSCH transport layer number and / or PUSCH modulation order, the process includes: Receive a first index sent by a network device, the first index being used to indicate a first parameter, the first parameter being used to control resource allocation; The first index is determined to be within the range of the first index, or the first parameter indicated by the first index is a first value, the first value being used to indicate that the terminal determines the first quantity at least according to the number of PUSCH transmission layers and / or the number of PUSCH modulation orders.

10. The method according to claim 1, characterized in that, Before determining the first number of resource units required to transmit CSI-part 2 on the PUSCH based at least on the PUSCH transport layer number and / or PUSCH modulation order, the process includes: The terminal receives second information sent by a network device, the second information instructing the terminal to determine the first quantity based on at least one of the PUSCH transport layer number and the PUSCH modulation order.

11. The method according to claim 2, characterized in that, Before the measurement data is input into the first model for compression, the following steps are included: The terminal receives third information sent by a network device, the third information instructing the terminal to process the measurement data according to the first model.

12. A communication method, characterized in that, Performed by a network device, the method includes: The terminal sends the PUSCH transport layer number and / or PUSCH modulation order, both of which are used by the terminal to determine a first number of resource units required to transmit CSI-part 2 on the PUSCH, wherein the CSI-part 2 is not channel-coded.

13. The method according to claim 12, characterized in that, The method further includes: Send a first index to the terminal, wherein the first index is within a first index range, or the first parameter indicated by the first index is a first value, wherein the first parameter is used by the terminal to control resource allocation, and the first value is used to instruct the terminal to determine the first quantity at least according to the number of PUSCH transmission layers and / or the number of PUSCH modulation orders.

14. The method according to claim 12, characterized in that, The method further includes: Send a second message to the terminal, the second message instructing the terminal to determine the first quantity based on at least one of the PUSCH transmission layer number and the PUSCH modulation order.

15. The method according to claim 12, characterized in that, The method further includes: A third message is sent to the terminal, which instructs the terminal to compress the measurement data of the channel state information reference signal according to the first model.

16. A communication device, characterized in that, The communication device is used to perform the communication method according to any one of claims 1-11 and 12-15.

17. A communication system, characterized in that, The device includes a terminal and a network device, wherein the terminal is configured to implement the communication method according to any one of claims 1-11, and the network device is configured to implement the communication method according to any one of claims 11-15.

18. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the communication method according to any one of claims 1-11 and 12-15.

19. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by the communication device, it implements the communication method according to any one of claims 1-11 and 12-15.

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