WO2024065231A1 - Procédés et appareil de communication, et support d'enregistrement - Google Patents

Procédés et appareil de communication, et support d'enregistrement Download PDF

Info

Publication number
WO2024065231A1
WO2024065231A1 PCT/CN2022/121924 CN2022121924W WO2024065231A1 WO 2024065231 A1 WO2024065231 A1 WO 2024065231A1 CN 2022121924 W CN2022121924 W CN 2022121924W WO 2024065231 A1 WO2024065231 A1 WO 2024065231A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
layer mapping
codeword
information
transmission
Prior art date
Application number
PCT/CN2022/121924
Other languages
English (en)
Chinese (zh)
Inventor
高雪媛
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/121924 priority Critical patent/WO2024065231A1/fr
Publication of WO2024065231A1 publication Critical patent/WO2024065231A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a communication method, device and storage medium.
  • the terminal supports uplink transmission with a maximum of 4 layers of transmission streams, and downlink transmission can support up to 8 layers.
  • a terminal may support multiple layer mapping schemes when performing uplink transmission through a maximum of 4 layers or a maximum of 8 layers.
  • the present disclosure provides a communication method, device and storage medium.
  • a communication method which is applied to a network device, and includes:
  • a first information sent by a receiving terminal is used to indicate the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers; based on the first information, a codeword-to-layer mapping scheme used for uplink transmission is configured for the terminal, and the codeword-to-layer mapping scheme represents a mapping relationship between codewords and transmission layers.
  • a communication method is provided, which is applied to a terminal, including:
  • the first information is used to indicate the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers, and is used to instruct the network device to configure a codeword-to-layer mapping scheme for uplink transmission for the terminal based on the first information, wherein the codeword-to-layer mapping scheme represents a mapping relationship between codewords and transmission layers.
  • a communication device applied to a network device, including:
  • a receiving unit used to receive first information sent by a terminal, wherein the first information is used to indicate the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers; a processing unit, used to configure a codeword-to-layer mapping scheme used for uplink transmission for the terminal based on the first information, wherein the codeword-to-layer mapping scheme represents a mapping relationship between codewords and transmission layers.
  • a communication device which is applied to a terminal, including:
  • a sending unit is used to send first information to a network device, wherein the first information is used to indicate the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers, and is used to instruct the network device to configure a codeword-to-layer mapping scheme used for uplink transmission for the terminal based on the first information, wherein the codeword-to-layer mapping scheme represents a mapping relationship between codewords and transmission layers.
  • a communication device applied to a network device, including:
  • a memory for storing processor-executable instructions
  • the processor is configured to: execute the method described in any one of the first aspects.
  • a communication device which is applied to a terminal, including:
  • a memory for storing processor-executable instructions
  • the processor is configured to: execute the method described in any one of the second aspects.
  • a storage medium in which instructions are stored.
  • the instructions in the storage medium are executed by a processor of a network device, the network device is enabled to execute any one of the methods described in the first aspect.
  • a storage medium wherein instructions are stored in the storage medium.
  • the instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute any one of the methods described in the second aspect.
  • a non-temporary computer-readable storage medium is provided.
  • the network device When instructions in the storage medium are executed by a processor of a network device, the network device is enabled to execute any one of the methods described in the first aspect.
  • a non-temporary computer-readable storage medium When instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute any one of the methods described in the second aspect.
  • the terminal reports the maximum number of transmission layers supported by itself for uplink transmission and the number of codewords corresponding to the number of transmission layers to the network device, so that the network device configures the terminal with the codeword-to-layer mapping scheme used for uplink transmission according to the layer mapping capability of the terminal.
  • this method provides a compatible adaptation scheme for different types of terminals that support one or more, the same or different codeword-to-layer mapping schemes, which can meet the demand for expanding the number of transmission layers of the terminal.
  • FIG1 is a schematic diagram of a wireless communication system.
  • FIG. 2 is a schematic diagram of a mapping relationship between code words and transmission layers when a terminal performs uplink transmission through a maximum of 4 layers in the related art.
  • Fig. 3 is a schematic diagram showing a mapping relationship between codewords and transmission layers when a terminal performs uplink transmission of up to 8 layers using a single codeword according to an exemplary embodiment.
  • Fig. 4 is a schematic diagram showing a mapping relationship between codewords and transmission layers when a terminal performs uplink transmission of up to 8 layers using up to two codewords according to an exemplary embodiment.
  • Fig. 5 is a flow chart showing a communication method according to an exemplary embodiment.
  • Fig. 6 is a flow chart showing another communication method according to an exemplary embodiment.
  • Fig. 7 is a flow chart showing yet another communication method according to an exemplary embodiment.
  • Fig. 8 is a flow chart showing a communication method according to an exemplary embodiment.
  • Fig. 9 is a block diagram of a communication device according to an exemplary embodiment.
  • Fig. 10 is a block diagram of a communication device according to an exemplary embodiment.
  • Fig. 11 is a block diagram showing a device for communication according to an exemplary embodiment.
  • Fig. 12 is a block diagram showing a device for communication according to an exemplary embodiment.
  • the wireless communication system includes a network device and a terminal.
  • the terminal is connected to the network device through wireless resources and performs data transmission.
  • the wireless communication system shown in FIG1 is only for schematic illustration, and the wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices, which are not shown in FIG1.
  • the embodiments of the present disclosure do not limit the number of network devices and terminals included in the wireless communication system.
  • the wireless communication system of the embodiment of the present disclosure is a network that provides wireless communication functions.
  • the wireless communication system can adopt different communication technologies, such as code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division multiple access (time division multiple access, TDMA), frequency division multiple access (frequency division multiple access, FDMA), orthogonal frequency division multiple access (orthogonal frequency-division multiple access, OFDMA), single carrier frequency division multiple access (single carrier FDMA, SC-FDMA), carrier sense multiple access/collision avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • code division multiple access code division multiple access
  • CDMA code division multiple access
  • wideband code division multiple access wideband code division multiple access
  • WCDMA wideband code division multiple access
  • time division multiple access time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • single carrier frequency division multiple access single carrier frequency division multiple access
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called new wireless network (New Radio, NR).
  • 2G English: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called new wireless network (New Radio, NR).
  • NR New Radio
  • the present disclosure sometimes simply refers to a wireless communication network as a network.
  • the wireless access network equipment may also be referred to as a wireless access network equipment.
  • the wireless access network equipment may be: a base station, an evolved node B (base station), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It may also be a gNB in an NR system, or it may also be a component or a part of a base station. It should be understood that in the embodiments of the present disclosure, the specific technology and specific device form adopted by the network equipment are not limited.
  • the network equipment may provide communication coverage for a specific geographical area, and may communicate with a terminal located in the coverage area (cell).
  • the network equipment may also be a vehicle-mounted device.
  • the terminal involved in the present disclosure may also be referred to as a terminal device, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc., which is a device that provides voice and/or data connectivity to users.
  • the terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, etc.
  • some examples of terminals are: a smart phone (Mobile Phone), a customer premises equipment (Customer Premise Equipment, CPE), a pocket computer (Pocket Personal Computer, PPC), a handheld computer, a personal digital assistant (Personal Digital Assistant, PDA), a laptop computer, a tablet computer, a wearable device, or a vehicle-mounted device, etc.
  • V2X vehicle-to-everything
  • the terminal device may also be a vehicle-mounted device.
  • V2X vehicle-to-everything
  • the terminal supports uplink transmission with a maximum of 4 layers of transmission streams, and downlink transmission can support a maximum of 8 layers.
  • the mapping between codewords and layers is shown in Table 1 below.
  • x (0) (i) to x (7) (i) are used to identify eight different transmission layers.
  • the mapping relationship between codewords and transmission layers can be obtained by Indicates. Among them, and Used to identify two different code words, n0 represents the code word The number of transmission layers that constitute the mapping, n1 represents the codeword The number of transport layers that make up the mapping. For example, the codeword Mapping with three transport layers, codeword A mapping is formed between the four transmission layers.
  • FIG. 1 is a schematic diagram of the mapping relationship between codewords and transmission layers when the terminal performs uplink transmission through a maximum of 4 layers in the related art.
  • Figure 3 is a schematic diagram of the mapping relationship between codewords and transmission layers when a terminal performs uplink transmission through a maximum of 8 layers through a single codeword according to an exemplary embodiment.
  • Figure 4 is a schematic diagram of the mapping relationship between codewords and transmission layers when a terminal performs uplink transmission through a maximum of two codewords according to an exemplary embodiment.
  • the RANK number represents the number of transmission layers
  • CW0 and CW1 are used to identify two different codewords.
  • the terminal can perform uplink transmission through a single codeword or a maximum of two codewords.
  • the terminal performs uplink transmission with a maximum of 8 layers and a maximum of two codewords, it also supports more flexible mapping, that is, the number of layers corresponding to the two codewords is not limited and is determined according to the actual channel conditions.
  • one codeword corresponds to 4 transmission layers
  • the other codeword corresponds to 2 transmission layers.
  • the terminal can perform uplink transmission through a maximum of 4 layers or a maximum of 8 layers.
  • a terminal can often support multiple mapping schemes at the same time.
  • how to adapt between the terminal and multiple layer mapping schemes so that terminals with different layer mapping capabilities can perform uplink transmission according to the layer mapping schemes they support is a problem that needs to be solved urgently.
  • the present disclosure provides a communication method, in which a network device can receive corresponding information sent by a terminal to obtain the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers. On this basis, the network device can obtain one or more codeword-to-layer mapping schemes supported by the terminal for uplink transmission through the obtained maximum number of transmission layers and the number of codewords corresponding to the number of transmission layers, and then configure the terminal with the codeword-to-layer mapping scheme used for uplink transmission according to the codeword-to-layer mapping scheme supported by the terminal for uplink transmission.
  • the network device can configure the codeword-to-layer mapping method according to the mapping capability it has, thereby providing an adaptation solution for terminals with different codeword-to-layer mapping capabilities, thereby solving the problem of expansion of the number of uplink transmission layers and the inability to adapt between the network device and the terminal.
  • first information information used to indicate the number of layers supported by a terminal during uplink transmission and the number of codewords corresponding to the number of layers.
  • Fig. 5 is a flow chart showing a communication method according to an exemplary embodiment. As shown in Fig. 5 , the communication method is used in a network device and includes the following steps.
  • step S11 first information sent by a terminal is received.
  • the first information is used to indicate the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers.
  • the first information can be carried in at least one of the radio resource control (RRC) signaling, the medium access control control element (MAC CE) signaling, and the uplink control indication signaling (UCI).
  • RRC radio resource control
  • MAC CE medium access control control element
  • UCI uplink control indication signaling
  • step S12 based on the first information, a codeword-to-layer mapping scheme used for uplink transmission is configured for the terminal.
  • the codeword-to-layer mapping scheme represents the mapping relationship between codewords and layers.
  • the network device can deduce the actual layer mapping capability of the terminal based on the acquired information, and use this to configure the terminal with a layer codeword-to-layer mapping scheme that is compatible with its layer mapping capability.
  • This method can be adapted to the uplink transmission scenarios of terminals with different mapping capabilities, and provides a solution for the expansion of the number of layers for uplink transmission of the terminal.
  • the first information is used to reflect the layer codeword-to-layer mapping scheme supported by the terminal when performing uplink transmission.
  • the first information may directly include the required specific information, such as the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers.
  • the required specific information such as the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers.
  • the information contained therein includes the following four possible situations.
  • Case 1 the maximum number of transmission layers supported by the terminal for uplink transmission is 4, and the maximum number of codewords corresponding to each number of transmission layers is 1.
  • Case 2 the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each number of transmission layers is 1.
  • Case 3 the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each number of transmission layers is 2.
  • Case 4 the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each number of transmission layers is 1 or 2.
  • the content contained in the first information may also be identification information used to indirectly characterize the above-mentioned specific information, for example, it may be the capability type of the terminal.
  • the capability type can be understood as a predefined identification method between the terminal and the network device, which is used to characterize the maximum number of transmission layers supported by the terminal when performing uplink transmission and the number of codewords corresponding to the maximum number of transmission layers.
  • the network device receives the first information and obtains the capability type from it, the maximum number of transmission layers supported by the terminal for uplink transmission and the maximum number of codewords corresponding to each number of transmission layers can be determined according to the predefined capability type interpretation method.
  • the method of configuring the capability type in the first information in the embodiment of the present disclosure can directly reflect one or more codeword-to-layer mapping schemes supported by the terminal when performing uplink transmission. This method can reduce the amount of transmission information on the terminal side and be more in line with actual communication needs.
  • the capability type included in the first information may be a first capability type, a second capability type, a third capability type or a fourth capability type.
  • the first capability type represents that the maximum number of transmission layers supported by the terminal for uplink transmission is 4, and the maximum number of codewords corresponding to each transmission layer number is 1.
  • the second capability type represents that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each transmission layer number is 1.
  • the third capability type represents that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each transmission layer number is 2.
  • the fourth capability type represents that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each transmission layer number is 1 or 2.
  • the codeword-to-layer mapping scheme configured by the network device for the terminal represents the mapping relationship between the codeword and the layer.
  • the codeword-to-layer mapping scheme configured by the network device for the terminal is to use a single codeword for layer mapping.
  • This scheme can be further divided into two codeword-to-layer mapping schemes according to the maximum number of transmission layers supported by the terminal.
  • the codeword to layer mapping scheme is to use a single codeword to map data to layers when the number of transmission layers is 1, 2, 3 or 4.
  • the codeword to layer mapping scheme is to use a single codeword to map data to layers when the number of transmission layers is 1, 2, 3, 4, 5, 6, 7 or 8.
  • the codeword-to-layer mapping scheme configured by the network device for the terminal is to use two codewords for layer mapping.
  • the codeword-to-layer mapping scheme is to use a single codeword for data-to-layer mapping when the number of transmission layers is 1, 2, 3, or 4, and to use two codewords for data-to-layer mapping when the number of transmission layers is 5, 6, 7, or 8.
  • the codeword-to-layer mapping scheme may include using a single codeword for layer mapping and using two codewords for layer mapping.
  • the codeword-to-layer mapping scheme may include using a single codeword for data-to-layer mapping when the number of transmission layers is 1, 2, 3, 4, 5, 6, 7, or 8 and may also include using a single codeword for layer mapping when the number of transmission layers is 1, 2, 3, or 4, and using two codewords for layer mapping when the number of transmission layers is 5, 6, 7, or 8.
  • the codeword-to-layer mapping scheme used by the network device for uplink transmission configured for the terminal corresponds to a maximum number of codewords and/or a maximum number of transmission layers. Further, the terminal can perform mapping between codewords and layers based on the codeword-to-layer mapping scheme supported by itself, combined with the maximum number of codewords and/or the maximum number of transmission layers configured by the network device.
  • the network device may instruct the terminal to configure the codeword-to-layer mapping scheme for uplink transmission by sending signaling.
  • the information sent by the network device for configuring the codeword-to-layer mapping scheme for the terminal is referred to as second information.
  • FIG6 is a flow chart of another communication method according to an exemplary embodiment. As shown in FIG6 , step S21 in the embodiment of the present disclosure is similar to the execution method of step S11 in FIG1 , and will not be described in detail herein.
  • step S22 based on the first information, a codeword-to-layer mapping scheme used by the terminal for uplink transmission is determined.
  • step S23 second information is sent to the terminal.
  • the second information is used to indicate the codeword-to-layer mapping scheme used by the network device for uplink transmission configured for the terminal.
  • the network device determines the codeword-to-layer mapping scheme supported by the terminal through the first information reported by the terminal, and generates the second information in combination with the actual communication needs to implement the corresponding configuration of the codeword-to-layer mapping scheme of the terminal.
  • the network device configures the codeword-to-layer mapping scheme that the terminal can support in combination with the information reported by the terminal.
  • the network device side can configure a codeword-to-layer mapping scheme that meets the needs for the terminal based on different needs.
  • the second information may be carried in radio resource control signaling.
  • the codeword-to-layer mapping schemes that the terminal can support can be roughly divided into using a single codeword for layer mapping and using a maximum of two codewords for layer mapping.
  • the second information sent by the network device can be used to instruct the terminal to use a single codeword for layer mapping, or to instruct the terminal to use a maximum of two codewords for layer mapping.
  • the second information sent by the network device is used to configure a codeword-to-layer mapping scheme supported by the terminal.
  • the terminal side may be configured with a predefined default codeword-to-layer mapping scheme, which may be any one of the mapping schemes supported by the terminal, and the present disclosure does not impose any restrictions on this.
  • the network device side may be configured with an activation method for activating the terminal configuration default codeword-to-layer mapping scheme.
  • the network device may choose not to send the second information so that when the terminal does not receive the second information (for example, the terminal may not receive the second information within a specified period of time after sending the first information), the default configuration method for the codeword-to-layer mapping scheme is triggered, that is, layer mapping is performed according to the default codeword-to-layer mapping scheme.
  • the network device can also update the default codeword-to-layer mapping scheme of the terminal by sending update indication information.
  • the update indication information is used to indicate the update of the default codeword-to-layer mapping scheme. For ease of understanding, an exemplary description is given below.
  • the codeword-to-layer mapping schemes it supports include using a single codeword for layer mapping and using a maximum of two codewords for layer mapping.
  • the network device may instruct the terminal to update the default codeword-to-layer mapping scheme by sending an update indication message.
  • the network device instructs the terminal to update the default codeword-to-layer mapping scheme from using a single codeword for layer mapping to using a maximum of two codewords for layer mapping through the update indication message.
  • the codeword-to-layer mapping scheme that is triggered to execute by default on the terminal side can be changed by the network device side based on actual needs. This method can further improve the flexibility of the terminal in performing layer mapping.
  • the network device may dynamically switch the indication field based on the single transmission and reception point (STRP) and the multi transmission and reception point (MTRP) in the downlink control information (DCI) to send the update indication information.
  • the network device may send the update indication information based on the newly added information indication field (for example, adding 1 bit) in the downlink control information.
  • the network device may send the update indication information based on the newly added code point (code point) and/or the newly added indication information in the antenna port indication field.
  • the present disclosure may send the update indication information through one or a combination of the above methods, but the specific sending method of the update indication information is not limited thereto.
  • the following takes sending update indication information through a single transmission reception point and a multiple transmission reception point dynamic switching indication field as an example to exemplarily illustrate the implementation method of sending update indication information.
  • the network device may send a default codeword-to-layer mapping scheme for indicating that a maximum of two codewords will be used for layer mapping, and update it to a default codeword-to-layer scheme for layer mapping with a single codeword, when it is learned that the default codeword-to-layer mapping scheme of the terminal is to use a single codeword for layer mapping, and confirm that the dynamic switching indication field indicates a single transmission reception point.
  • the network device may also send a default codeword-to-layer scheme for indicating that a single codeword will be used for layer mapping, and update it to a default codeword-to-layer mapping scheme for layer mapping with a maximum of two codewords, when it is learned that the default codeword-to-layer mapping scheme of the terminal is to use a single codeword for layer mapping, and confirm that the dynamic switching indication field indicates multiple transmission reception points.
  • the use of a single codeword for layer mapping has a higher transmission efficiency (correspondingly, for the uplink transmission mode of multiple transmission reception points, the use of a maximum of two codewords for layer mapping has a higher transmission efficiency). Therefore, by updating the default codeword-to-layer scheme configured in the terminal in the above manner, the layer mapping method executed by the terminal by default can be made consistent with the actual scenario of uplink transmission, thereby ensuring the uplink transmission efficiency.
  • a network device may obtain the codeword-to-layer mapping scheme supported by the terminal for uplink transmission by receiving the first information sent by the terminal, and then configure the terminal with the codeword-to-layer mapping scheme used for uplink transmission by sending the second information.
  • the terminal may further send another information in addition to the first information to indicate the codeword-to-layer mapping scheme it expects to use.
  • the present disclosure refers to the information sent by the terminal to indicate the codeword-to-layer mapping scheme it expects to use as the third information.
  • the third information is used to indicate the codeword-to-layer mapping scheme that the terminal expects to use.
  • the third information may indicate the use of a single codeword for layer mapping, or the use of a maximum of two codewords for layer mapping.
  • Fig. 7 is a flow chart of yet another communication method according to an exemplary embodiment. As shown in Fig. 7 , the method includes the following steps.
  • step S31 first information sent by a terminal is received.
  • step S32 the third information sent by the terminal is received.
  • step S33 the second information is sent to the terminal.
  • the network device can determine the codeword-to-layer mapping scheme supported by the terminal for uplink transmission according to the first information, and determine the codeword-to-layer mapping scheme that the terminal expects to use for uplink transmission according to the third information. On this basis, the network device can configure and send the second information according to actual needs, so as to configure the terminal with the codeword-to-layer mapping scheme that it supports and meets the needs.
  • the codeword-to-layer mapping scheme indicated by the third information represents the codeword-to-layer mapping scheme selected by the terminal from multiple supported codeword-to-layer mapping schemes that best fits the current uplink transmission scenario.
  • the following takes a terminal with a capability type of the fourth capability type as an example to illustrate the possible situation in which the terminal triggers the sending of the third information.
  • the third information may be used to indicate the use of a single codeword for layer mapping, or the use of a maximum of two codewords for layer mapping.
  • the third information for indicating the use of a maximum of two codewords for layer mapping may be sent by the terminal when at least one of the following conditions is met.
  • Condition 1 The difference in signal quality between different data layers is greater than a first threshold value.
  • Condition 2 for a multi-transmission reception point scenario, the difference in channel quality indications received by the terminal through measuring the cooperative transmission reception point is greater than a second threshold value.
  • Condition 3 The reference signal received power difference between the reported beams obtained by the terminal during beam measurement is greater than the third threshold value.
  • Condition 4 The signal quality difference between the reported beams obtained by the terminal during beam measurement is greater than the fourth threshold value.
  • Condition 5 When the terminal performs multi-layer transmission using a single codeword, a continuous retransmission event occurs in the transport block and the timer used to indicate the retransmission times out.
  • the first threshold value, the second threshold value, the third threshold value and the fourth threshold value are used to determine the codeword-to-layer mapping scheme supported by the terminal, which satisfies the codeword-to-layer mapping scheme that enables the terminal to perform the best uplink transmission effect.
  • condition 1 when the difference in signal quality between different data layers is greater than the first threshold value, the uplink transmission effect of the terminal using a single codeword for layer mapping is worse than the uplink transmission effect of the terminal using a maximum of two codewords for layer mapping. In other words, when the terminal does not meet the above conditions, the terminal can be instructed to use a single codeword to perform layer mapping.
  • first threshold value the second threshold value, the third threshold value and the fourth threshold value
  • values between the first threshold value, the second threshold value, the third threshold value and the fourth threshold value can be the same or different.
  • the second information sent by the network device is used to directly configure the codeword-to-layer mapping scheme supported by the terminal.
  • the second information sent by the network device is used to select and configure the codeword-to-layer mapping scheme that best fits the current uplink transmission scenario for the terminal among the multiple codeword-to-layer mapping schemes supported by the terminal.
  • the codeword-to-layer mapping scheme indicated by the third information is the codeword-to-layer mapping scheme that the terminal expects to use.
  • the network device can use the codeword-to-layer mapping scheme indicated by the third information as the codeword-to-layer mapping scheme indicated by the second information.
  • the network device can also select other codeword-to-layer mapping schemes that are supported by the terminal and different from the codeword-to-layer mapping scheme indicated by the third information according to actual needs.
  • the network device can directly use the codeword-to-layer mapping scheme indicated by the third information (i.e., use a single codeword for layer mapping) as the codeword-to-layer mapping scheme indicated by the second information, so as to achieve the effect that the network device "adopts" the "suggestion" of the terminal.
  • the network device can also choose to "not adopt” the "suggestion” of the terminal according to actual conditions, that is, not to use the codeword-to-layer mapping scheme indicated by the third information (i.e., use a single codeword for layer mapping) as the codeword-to-layer mapping scheme indicated by the second information, but to use a maximum of two codewords for layer mapping as the codeword-to-layer mapping scheme indicated by the second information.
  • the first information may be carried in at least one of radio resource control signaling, media access control control unit signaling, and uplink control indication signaling, for example.
  • the second information may be carried in radio resource control signaling, for example.
  • the terminal can report the maximum number of transmission layers and the maximum number of codewords supported by the terminal to the network device, so that the network device can learn one or more codeword-to-layer mapping schemes supported by the terminal side for uplink transmission.
  • the network device can configure the codeword-to-layer mapping scheme used for uplink transmission for the terminal according to the codeword-to-layer mapping scheme supported by the terminal for uplink transmission.
  • the network device since the network device refers to the codeword-to-layer mapping scheme supported by the terminal when configuring the codeword-to-layer mapping scheme of the terminal, the network device can configure the codeword-to-layer mapping scheme for terminals with different layer mapping capabilities, thereby improving the compatibility and adaptability of the scheme.
  • the method provides an adaptation scheme for the transmission layer extension, which can meet the communication needs of terminals with different layer mapping capabilities in the uplink transmission scenario.
  • the network device can instruct the terminal to execute the corresponding configuration of the codeword-to-layer scheme by sending signaling.
  • the terminal and the network device can interact in a specific manner so that the terminal performs corresponding configuration according to a predefined default codeword-to-layer scheme.
  • the network device and the terminal can complete the configuration of the codeword-to-layer mapping scheme for uplink transmission of the terminal for a variety of different scenarios.
  • This method provides a variety of options for the configuration of the codeword-to-layer mapping scheme, thereby meeting the configuration requirements in a variety of different scenarios.
  • an embodiment of the present disclosure also provides a communication method applied to a terminal.
  • the terminal involved in this embodiment is used to interact with the network device involved in any of the above embodiments to complete the configuration of its own codeword to layer mapping scheme. If there is any unclear point in the following embodiment, refer to any of the above embodiments. Similarly, if there is any unclear point in the above embodiment, refer to any of the following embodiments.
  • Fig. 8 is a flow chart showing a communication method according to an exemplary embodiment. As shown in Fig. 8 , the communication method is used in a terminal and includes the following steps.
  • step S41 first information is sent to the network device.
  • the first information is used to indicate the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers, and is used to indicate that the network device configures the terminal with a codeword-to-layer mapping scheme for uplink transmission based on the first information.
  • the codeword-to-layer mapping scheme represents the mapping relationship between codewords and transmission layers.
  • the first information may be carried in at least one of radio resource control signaling, media access control control unit signaling, and uplink control indication signaling.
  • step S42 the first information is sent to the network device.
  • the terminal sends first information to a network device so that the network device configures a codeword-to-layer mapping scheme used for uplink transmission for the terminal based on the first information.
  • the method can enable the terminal to perform uplink transmission according to the codeword-to-layer mapping scheme supported by the terminal, while achieving the expansion of the number of uplink transmission layers of the terminal, so that terminals with different codeword-to-layer mapping capabilities can all adapt to the uplink transmission scheme supported by the present disclosure.
  • the first information is used to reflect the layer codeword-to-layer mapping scheme supported by the terminal when performing uplink transmission.
  • the first information may directly include the required specific information, such as the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers.
  • the required specific information such as the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers.
  • the information contained therein includes the following four possible situations.
  • Situation 1 the maximum number of transmission layers supported by the terminal for uplink transmission is 4, and the maximum number of codewords corresponding to each number of transmission layers is 1.
  • Situation 2 the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each number of transmission layers is 1.
  • Situation 3 the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each number of transmission layers is 2.
  • Situation 4 the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each number of transmission layers is 1 or 2.
  • the content contained in the first information may also be identification information used to indirectly characterize the above-mentioned specific information, for example, it may be the capability type of the terminal.
  • the capability type can be understood as a predefined identification method between the terminal and the network device, which is used to characterize the maximum number of transmission layers supported by the terminal when performing uplink transmission and the number of codewords corresponding to the maximum number of transmission layers.
  • the network device receives the first information and obtains the capability type from it, the maximum number of transmission layers supported by the terminal for uplink transmission and the maximum number of codewords corresponding to each number of transmission layers can be determined according to the predefined capability type interpretation method.
  • the method of configuring the capability type in the first information in the embodiment of the present disclosure can directly reflect one or more codeword-to-layer mapping schemes supported by the terminal when performing uplink transmission. This method can reduce the amount of transmission information on the terminal side and be more in line with actual communication needs.
  • the capability type included in the first information may be the first capability type, the second capability type, the third capability type, or the fourth capability type.
  • the first capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 4, and the maximum number of codewords corresponding to each number of transmission layers is 1. On this basis, when the terminal performs uplink transmission through 1, 2, 3 or 4 transmission layers, a single codeword is used for mapping data to layers.
  • the second capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each number of transmission layers is 1. On this basis, when the terminal performs uplink transmission through 1, 2, 3, 4, 5, 6, 7 or 8 transmission layers, a single codeword is used for mapping data to layers.
  • the third capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each number of transmission layers is 2. On this basis, when the terminal performs uplink transmission through 1, 2, 3 or 4 transmission layers, a single codeword is used to map data to layers, and when performing uplink transmission through 5, 6, 7 or 8 transmission layers, two codewords are used to map data to layers.
  • the fourth capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each number of transmission layers is 1 or 2.
  • the terminal performs uplink transmission through 1, 2, 3 or 4 transmission layers, a single codeword is used to map data to layers, and when performing uplink transmission through 5, 6, 7 or 8 transmission layers, a single codeword or two codewords are used to map data to layers.
  • the codeword-to-layer mapping scheme configured by the network device for the terminal represents the mapping relationship between the codeword and the layer.
  • the codeword-to-layer mapping scheme configured by the network device for the terminal is to use a single codeword for layer mapping, and the scheme can be further divided into two codeword-to-layer mapping schemes according to the maximum number of transmission layers supported by the terminal.
  • the codeword to layer mapping scheme is to use a single codeword to map data to layers when the number of transmission layers is 1, 2, 3 or 4.
  • the codeword to layer mapping scheme is to use a single codeword to map data to layers when the number of transmission layers is 1, 2, 3, 4, 5, 6, 7 or 8.
  • the codeword-to-layer mapping scheme configured by the network device for the terminal is to use two codewords for layer mapping.
  • the codeword-to-layer mapping scheme is to use a single codeword for data-to-layer mapping when the number of transmission layers is 1, 2, 3, or 4, and to use two codewords for data-to-layer mapping when the number of transmission layers is 5, 6, 7, or 8.
  • the codeword-to-layer mapping scheme may include using a single codeword for layer mapping and using two codewords for layer mapping.
  • the codeword-to-layer mapping scheme may include using a single codeword for data-to-layer mapping when the number of transmission layers is 1, 2, 3, 4, 5, 6, 7, or 8 and may also include using a single codeword for layer mapping when the number of transmission layers is 1, 2, 3, or 4, and using two codewords for layer mapping when the number of transmission layers is 5, 6, 7, or 8.
  • the codeword-to-layer mapping scheme used for uplink transmission configured for the terminal corresponds to a maximum number of codewords and/or a maximum number of transmission layers.
  • a network device may send second information, which is used to indicate a codeword-to-layer mapping scheme used by the network device for uplink transmission configured for the terminal. Accordingly, the terminal may receive the second information sent by the network device, and configure itself to use the codeword-to-layer mapping scheme for uplink transmission based on the second information.
  • the second information may be carried in a radio resource control signaling.
  • the codeword-to-layer mapping scheme includes using a single codeword for layer mapping and using a maximum of two codewords for layer mapping. Accordingly, the second information received by the terminal is used to indicate that the terminal uses a single codeword for layer mapping or uses a maximum of two codewords for layer mapping.
  • the terminal side may be configured with a predefined default codeword-to-layer mapping scheme, which may be any one of the mapping schemes supported by the terminal, and the present disclosure does not impose any restrictions on this.
  • the network device side may be configured with an activation method for activating the terminal configuration default codeword-to-layer mapping scheme.
  • the network device may choose not to send the second information so that when the terminal does not receive the second information (for example, the terminal may not receive the second information within a specified period of time after sending the first information), the default configuration method for the codeword-to-layer mapping scheme is triggered, that is, layer mapping is performed according to the default codeword-to-layer mapping scheme.
  • the network device and the terminal can further interact to complete the update of the default codeword-to-layer mapping scheme.
  • the terminal receives the update indication information sent by the network device, and then updates the default codeword-to-layer mapping scheme through the update indication information.
  • the terminal receives the update indication information sent by the network device, and then updates the default codeword-to-layer mapping scheme through the update indication information.
  • the network device may send update indication information based on the dynamic switching indication field of the single transmission reception point and the multiple transmission reception point in the downlink control information.
  • the network device may send update indication information based on the newly added information indication field (for example, 1 bit is added) in the downlink control information.
  • the network device may send update indication information based on the newly added code point and/or newly added indication information in the antenna port indication field.
  • the present disclosure may send update indication information through one or a combination of the above methods, but the specific sending method of the update indication information is not limited thereto.
  • the terminal may further send third information on the basis of sending the first information to indicate the codeword-to-layer mapping scheme it wishes to use. Further, the network device may determine the mapping scheme used by the terminal indicated by the second information based on the third information. For example, since the codeword-to-layer mapping schemes supported by the terminal include using a single codeword for layer mapping and using a maximum of two codewords for layer mapping. Therefore, accordingly, the third information is used to indicate the use of a single codeword for layer mapping. Or the third information is used to indicate the use of a maximum of two codewords for layer mapping.
  • the third information for indicating that a maximum of two codewords are used for layer mapping is sent by the terminal when it is determined that at least one of the following conditions is met:
  • Condition 1 The difference in signal quality between different data layers is greater than a first threshold value.
  • Condition 2 for a multi-transmission reception point scenario, the difference in channel quality indications received by the terminal through measuring the cooperative transmission reception point is greater than a second threshold value.
  • Condition 3 The reference signal received power difference between the reported beams obtained by the terminal during beam measurement is greater than the third threshold value.
  • Condition 4 The signal quality difference between the reported beams obtained by the terminal during beam measurement is greater than the fourth threshold
  • Condition 5 When the terminal performs multi-layer transmission using a single codeword, a continuous retransmission event occurs in the transport block and the timer used to indicate the retransmission times out.
  • the first threshold value, the second threshold value, the third threshold value and the fourth threshold value are used to determine the codeword-to-layer mapping scheme supported by the terminal, which satisfies the codeword-to-layer mapping scheme that enables the terminal to perform the best uplink transmission effect.
  • condition 1 when the difference in signal quality between different data layers is greater than the first threshold value, the uplink transmission effect of the terminal using a single codeword for layer mapping is worse than the uplink transmission effect of the terminal using a maximum of two codewords for layer mapping. In other words, when the terminal does not meet the above conditions, the terminal can be instructed to use a single codeword to perform layer mapping.
  • first threshold value the second threshold value, the third threshold value and the fourth threshold value
  • values between the first threshold value, the second threshold value, the third threshold value and the fourth threshold value can be the same or different.
  • mapping scheme indicated by the second information may be consistent with the mapping scheme indicated by the third information.
  • the first information may be carried in at least one of radio resource control signaling, media access control control unit signaling, and uplink control indication signaling.
  • the second information may be carried in radio resource control signaling.
  • the terminal can report the layer mapping capability of the terminal by using radio resource control signaling, media access control control unit signaling, or downlink control information signaling. For example, the maximum number of transmission layers and the number of codewords supported for transmission are reported. For another example, a specific capability type is reported.
  • the specific capability type of the terminal may be configured according to the first capability type, the second capability type, the third capability type, and the fourth capability type.
  • capability type 1 may be configured for a terminal with the first capability type, i.e., "the terminal only supports a layer mapping scheme of a maximum of 4 layers, corresponding to 1 codeword.”
  • Capability type 2 may be configured for a terminal with the second capability type, i.e., "the terminal only supports a layer mapping scheme of a maximum of 1 codeword and a maximum of 8 layers.”
  • Capability type 3 may be configured for a terminal with the third capability type, i.e., "the terminal only supports a layer mapping scheme of a maximum of 2 codewords and a maximum of 8 layers, of which layers 5-8 support 2 codewords.”
  • capability type 4 may be configured for a terminal with the fourth capability type, i.e., "the terminal only supports a layer mapping scheme of a maximum of 2 CWs and a maximum of 8 layers, of which layers 5-8 support
  • the terminal with capability type 4 can, through certain trigger conditions, further use wireless resource control signaling, media access control control unit signaling, or uplink control information signaling to report the network recommended scheduling rules, in order to recommend that the network equipment configure a layer mapping scheme of a maximum of 2 codewords and a maximum of 8 layers, of which layers 5-8 support 2 codewords.
  • Trigger condition 1 The difference in signal quality between different data layers is greater than the first threshold value.
  • Trigger condition 2 for a multi-transmission reception point scenario, the difference in channel quality indications received by the terminal through measuring the cooperative transmission reception point is greater than a second threshold value.
  • Trigger condition 3 The reference signal receiving power difference between the reported beams obtained by the terminal during beam measurement is greater than the third threshold value.
  • Trigger condition 4 The signal quality difference between the reported beams obtained by the terminal during beam measurement is greater than the fourth threshold value.
  • Trigger condition 5 When the terminal performs multi-layer transmission using a single codeword, a continuous retransmission event occurs in the transport block and the timer used to indicate the retransmission times out.
  • the network device reports the terminal capability type and configures the corresponding layer mapping scheme through radio resource control signaling.
  • the terminal can be configured through unlimited resource control signaling to perform layer mapping with a maximum of 2 codewords and a maximum of 8 layers, or to enable layer mapping with a maximum of 1 codeword and a maximum of 8 layers, and the terminal can be configured to use a maximum of 1 codeword and a maximum of 8 layers for layer mapping by default.
  • the network device may reconfigure or update the PUSCH scheduling of the terminal through unlimited resource control signaling and media access control control unit signaling to indicate whether scheme 2 is subsequently adopted.
  • the network device may indicate whether the subsequent scheduling uses a maximum of 2 codewords and a maximum of 8 layers for layer mapping through downlink control information signaling or downlink control information signaling.
  • the layer mapping scheme may be associated with the single receiving point and multiple receiving point dynamic indication fields in the downlink control information signaling by default. For example: when the dynamic indication indicates a single receiving point, the terminal is configured to use a maximum of 1 codeword and a maximum of 8 layers for layer mapping.
  • the terminal when the dynamic indication field indicates multiple receiving points, the terminal is configured to use a maximum of 2 codewords and a maximum of 8 layers for layer mapping.
  • an independent indication field may be added to the downlink control information signaling for dynamic indication (such as 1 bit).
  • the amount of information may be increased by the code points in the antenna port indication field to indicate the codeword-to-layer mapping scheme performed by the terminal.
  • indication may also be made through code points in other indication fields.
  • the network device uses the terminal reporting suggestion to configure, instruct, or update via radio resource control signaling, media access control control unit signaling, or uplink control information signaling.
  • the terminal can report the maximum number of transmission layers and the maximum number of codewords supported by the terminal to the network device, so that the network device can know one or more codeword-to-layer mapping schemes supported by the terminal side for uplink transmission.
  • the network device can configure the codeword-to-layer mapping scheme used for uplink transmission for the terminal according to the codeword-to-layer mapping scheme supported by the terminal for uplink transmission.
  • the network device since the network device refers to the codeword-to-layer mapping scheme supported by the terminal when configuring the codeword-to-layer mapping scheme of the terminal, the network device can configure the codeword-to-layer mapping scheme for terminals with different layer mapping capabilities, thereby improving the compatibility and adaptability of the scheme.
  • the method provides an adaptation scheme for the transmission layer extension, which can meet the communication needs of terminals with different layer mapping capabilities in the uplink transmission scenario.
  • the network device can instruct the terminal to execute the corresponding configuration of the codeword-to-layer scheme by sending signaling.
  • the terminal and the network device can interact in a specific manner so that the terminal performs corresponding configuration according to the predefined default codeword-to-layer scheme.
  • the network device and the terminal can complete the configuration of the codeword-to-layer mapping scheme for uplink transmission of the terminal for multiple different scenarios.
  • This method provides multiple options for the configuration of the codeword-to-layer mapping scheme to meet the configuration requirements in multiple different scenarios.
  • an embodiment of the present disclosure also provides a communication device applied to a network device.
  • the communication device provided by the embodiment of the present disclosure includes a hardware structure and/or software module corresponding to each function in order to realize the above functions.
  • the embodiment of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiment of the present disclosure.
  • Fig. 9 is a block diagram of a communication apparatus 100 according to an exemplary embodiment.
  • the apparatus 100 is applied to a network device and includes a receiving unit 101 and a processing unit 102 .
  • the receiving unit 101 is used to receive first information sent by a terminal, where the first information is used to indicate the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers.
  • the processing unit 102 is used to configure a codeword-to-layer mapping scheme used for uplink transmission for the terminal based on the first information, where the codeword-to-layer mapping scheme represents a mapping relationship between codewords and transmission layers.
  • the first information includes: a maximum number of transmission layers supported by the terminal for uplink transmission, and a number of codewords corresponding to the number of transmission layers.
  • the first information includes: capability types supported by the terminal.
  • the capability types are used to represent the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers.
  • the capability type includes a first capability type.
  • the first capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 4, and the maximum number of codewords corresponding to each transmission layer number is 1.
  • the capability type includes a second capability type.
  • the second capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each transmission layer number is 1.
  • the capability type includes a third capability type.
  • the third capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each transmission layer number is 2.
  • the capability type includes a fourth capability type.
  • the fourth capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each transmission layer number is 1 or 2.
  • the codeword-to-layer mapping scheme includes: using a single codeword for layer mapping, including using a single codeword for data-to-layer mapping when the number of transmission layers is 1, 2, 3, or 4.
  • the codeword-to-layer mapping scheme includes: using a single codeword for layer mapping, including using a single codeword for data-to-layer mapping when the number of transmission layers is 1, 2, 3, 4, 5, 6, 7 or 8.
  • the codeword to layer mapping scheme includes: using a maximum of two codewords for layer mapping, including using a single codeword for data to layer mapping when the number of transmission layers is 1, 2, 3, or 4, and using two codewords for data to layer mapping when the number of transmission layers is 5, 6, 7, or 8.
  • the codeword-to-layer mapping scheme includes: using a single codeword for layer mapping, including using a single codeword for data-to-layer mapping when the number of transmission layers is 1, 2, 3, 4, 5, 6, 7, or 8. And using a maximum of two codewords for layer mapping, including using a single codeword for layer mapping when the number of transmission layers is 1, 2, 3, or 4, and using two codewords for layer mapping when the number of transmission layers is 5, 6, 7, or 8.
  • the processing unit 102 configures a codeword-to-layer mapping scheme for uplink transmission for the terminal in the following manner, including: the codeword-to-layer mapping scheme for uplink transmission configured for the terminal corresponds to a maximum number of codewords and/or a maximum number of transmission layers.
  • the processing unit 102 configures a codeword-to-layer mapping scheme used for uplink transmission for the terminal based on the first information in the following manner, including: determining the codeword-to-layer mapping scheme used for uplink transmission by the terminal based on the first information. Sending second information to the terminal, the second information being used to indicate the codeword-to-layer mapping scheme used for uplink transmission configured by the network device for the terminal.
  • the codeword-to-layer mapping scheme includes using a single codeword for layer mapping and using a maximum of two codewords for layer mapping.
  • the second information is used to indicate that the terminal uses a single codeword for layer mapping.
  • the second information is used to indicate that the terminal uses a maximum of two codewords for layer mapping.
  • the codeword-to-layer mapping scheme includes a predefined default codeword-to-layer mapping scheme.
  • the processing unit 102 is further configured to: send update indication information, where the update indication information is used to indicate updating of a default codeword-to-layer mapping scheme.
  • sending the update indication information includes at least one of the following: sending the update indication information based on the single transmission reception point and multiple transmission reception point dynamic switching indication field in the downlink control information DCI. Sending the update indication information based on the newly added information indication field in the downlink control information DCI. Sending the update indication information based on the newly added code point and/or newly added indication information in the antenna port indication field.
  • the receiving unit 101 is further used to: receive third information sent by the terminal, where the third information is used to indicate that a single codeword is used for layer mapping, or is used to indicate that a maximum of two codewords are used for layer mapping.
  • the third information for indicating the use of a maximum of two codewords for layer mapping is sent by the terminal when it is determined that at least one of the following conditions is met: the difference in signal quality between different data layers is greater than the first threshold value.
  • the difference in channel quality indications received by the terminal through measuring the cooperative transmission receiving point is greater than the second threshold value.
  • the difference in reference signal received power between each reported beam obtained by the terminal during beam measurement is greater than the third threshold value.
  • the difference in signal quality between each reported beam obtained by the terminal during beam measurement is greater than the fourth threshold value.
  • the processing unit 102 determines the codeword-to-layer mapping scheme used by the terminal indicated by the second information based on the third information in the following manner: using the codeword-to-layer mapping scheme indicated by the third information as the codeword-to-layer mapping scheme indicated by the second information.
  • the first information includes at least one of the following: Radio Resource Control (RRC) signaling, Medium Access Control (MAC) Element (CE) signaling, and Uplink Control Indication (UCI) signaling.
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • CE CE
  • UCI Uplink Control Indication
  • the second information includes radio resource control RRC signaling.
  • Fig. 10 is a block diagram of a communication device 200 according to an exemplary embodiment.
  • the device 200 is applied to a terminal and includes a sending unit 201 .
  • the sending unit 201 is used to send first information to the network device, where the first information is used to indicate the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers, and is used to indicate the network device to configure the terminal with a codeword-to-layer mapping scheme for uplink transmission based on the first information, where the codeword-to-layer mapping scheme represents a mapping relationship between codewords and transmission layers.
  • the first information includes: a maximum number of transmission layers supported by the terminal for uplink transmission, and a number of codewords corresponding to the number of transmission layers.
  • the first information includes: capability types supported by the terminal.
  • the capability types are used to represent the maximum number of transmission layers supported by the terminal for uplink transmission, and the number of codewords corresponding to the number of transmission layers.
  • the capability type includes a first capability type.
  • the first capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 4, and the maximum number of codewords corresponding to each transmission layer is 1.
  • the capability type includes a second capability type.
  • the second capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each transmission layer number is 1.
  • the capability type includes a third capability type.
  • the third capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each transmission layer number is 2.
  • the capability type includes a fourth capability type.
  • the fourth capability type indicates that the maximum number of transmission layers supported by the terminal for uplink transmission is 8, and the maximum number of codewords corresponding to each transmission layer number is 1 or 2.
  • the codeword-to-layer mapping scheme includes: using a single codeword for layer mapping, including using a single codeword for data-to-layer mapping when the number of transmission layers is 1, 2, 3, or 4.
  • the codeword-to-layer mapping scheme includes: using a single codeword for layer mapping, including using a single codeword for data-to-layer mapping when the number of transmission layers is 1, 2, 3, 4, 5, 6, 7 or 8.
  • the codeword to layer mapping scheme includes: using a maximum of two codewords for layer mapping, including using a single codeword for data to layer mapping when the number of transmission layers is 1, 2, 3, or 4, and using two codewords for data to layer mapping when the number of transmission layers is 5, 6, 7, or 8.
  • the codeword-to-layer mapping scheme includes: using a single codeword for layer mapping, including using a single codeword for data-to-layer mapping when the number of transmission layers is 1, 2, 3, 4, 5, 6, 7, or 8. And using a maximum of two codewords for layer mapping, including using a single codeword for layer mapping when the number of transmission layers is 1, 2, 3, or 4, and using two codewords for data-to-layer mapping when the number of transmission layers is 5, 6, 7, or 8.
  • the codeword-to-layer mapping scheme used for uplink transmission configured for the terminal corresponds to a maximum number of codewords and/or a maximum number of transmission layers.
  • the apparatus further includes: a receiving unit 202, configured to receive second information sent by a network device, wherein the second information is used to indicate a codeword-to-layer mapping scheme configured by the network device for the terminal for uplink transmission.
  • the codeword-to-layer mapping scheme includes using a single codeword for layer mapping and using a maximum of two codewords for layer mapping.
  • the second information is used to indicate that the terminal uses a single codeword for layer mapping.
  • the second information is used to indicate that the terminal uses a maximum of two codewords for layer mapping.
  • the codeword-to-layer mapping scheme includes a predefined default codeword-to-layer mapping scheme.
  • the receiving unit 202 is further used to: receive update indication information, where the update indication information is used to indicate updating of the default codeword-to-layer mapping scheme.
  • the receiving unit 202 receives the update indication information in one or a combination of the following ways: receiving the update indication information based on the single transmission reception point and multiple transmission reception point dynamic indication fields in the downlink control information DCI. receiving the update indication information based on the newly added information indication field in the downlink control information DCI. receiving the update indication information based on the newly added code point and/or the newly added indication information in the antenna port indication field.
  • the sending unit 201 is further used to: send third information so that the network device determines the mapping scheme used by the terminal indicated by the second information based on the third information.
  • the third information is used to indicate the use of a single codeword for layer mapping. Or the third information is used to indicate the use of a maximum of two codewords for layer mapping.
  • the third information for indicating layer mapping using a maximum of two codewords is sent by the terminal when it is determined that at least one of the following conditions is met: the difference in signal quality between different data layers is greater than the first threshold value.
  • the terminal measures the difference in channel quality indication received by the cooperative transmission receiving point and the difference is greater than the second threshold value.
  • the difference in reference signal received power between each reported beam obtained by the terminal during beam measurement is greater than the third threshold value.
  • the difference in signal quality between each reported beam obtained by the terminal during beam measurement is greater than the fourth threshold value.
  • the codeword-to-layer mapping scheme indicated by the second information is consistent with the codeword-to-layer mapping scheme indicated by the third information.
  • the first information includes at least one of the following: Radio Resource Control (RRC) signaling, Medium Access Control (MAC) Element (CE) signaling, and Uplink Control Indication (UCI) signaling.
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • CE CE
  • UCI Uplink Control Indication
  • the second information includes radio resource control RRC signaling.
  • Fig. 11 is a block diagram of a device 300 for communication according to an exemplary embodiment.
  • the device 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the apparatus 300 may include one or more of the following components: a processing component 302 , a memory 304 , a power component 306 , a multimedia component 308 , an audio component 310 , an input/output (I/O) interface 312 , a sensor component 314 , and a communication component 316 .
  • the processing component 302 generally controls the overall operation of the device 300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the above-mentioned method.
  • the processing component 302 may include one or more modules to facilitate the interaction between the processing component 302 and other components.
  • the processing component 302 may include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.
  • the memory 304 is configured to store various types of data to support operations on the device 300. Examples of such data include instructions for any application or method operating on the device 300, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power component 306 provides power to the various components of the device 300.
  • the power component 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 300.
  • the multimedia component 308 includes a screen that provides an output interface between the device 300 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
  • the multimedia component 308 includes a front camera and/or a rear camera. When the device 300 is in an operating mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
  • the audio component 310 is configured to output and/or input audio signals.
  • the audio component 310 includes a microphone (MIC), and when the device 300 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal.
  • the received audio signal can be further stored in the memory 304 or sent via the communication component 316.
  • the audio component 310 also includes a speaker for outputting audio signals.
  • I/O interface 312 provides an interface between processing component 302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.
  • the sensor assembly 314 includes one or more sensors for providing various aspects of the status assessment of the device 300.
  • the sensor assembly 314 can detect the open/closed state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, the sensor assembly 314 can also detect the position change of the device 300 or a component of the device 300, the presence or absence of user contact with the device 300, the orientation or acceleration/deceleration of the device 300, and the temperature change of the device 300.
  • the sensor assembly 314 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact.
  • the sensor assembly 314 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 314 can also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 316 is configured to facilitate wired or wireless communication between the device 300 and other devices.
  • the device 300 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel.
  • the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the apparatus 300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described methods.
  • ASICs application-specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • controllers microcontrollers, microprocessors, or other electronic components to perform the above-described methods.
  • a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 304 including instructions, and the instructions can be executed by the processor 320 of the device 300 to perform the above method.
  • the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
  • FIG. 12 is a block diagram of a device 400 for communication according to an exemplary embodiment.
  • the device 400 may be provided as a server.
  • the device 400 includes a processing component 422, which further includes one or more processors, and a memory resource represented by a memory 432 for storing instructions executable by the processing component 422, such as an application.
  • the application stored in the memory 432 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 422 is configured to execute instructions to perform the above method...
  • the device 400 may also include a power supply component 426 configured to perform power management of the device 400, a wired or wireless network interface 450 configured to connect the device 400 to a network, and an input/output (I/O) interface 458.
  • the device 400 may operate based on an operating system stored in the memory 432, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.
  • plural refers to two or more than two, and other quantifiers are similar thereto.
  • “And/or” describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B may represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • the singular forms “a”, “the”, and “the” are also intended to include plural forms, unless the context clearly indicates other meanings.
  • first, second, etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions “first”, “second”, etc. can be used interchangeably.
  • the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

Landscapes

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

Abstract

La présente divulgation concerne des procédés et un appareil de communication, et un support d'enregistrement. Un procédé de communication est appliqué à un dispositif de réseau, et consiste à : recevoir des premières informations envoyées par un terminal, les premières informations étant utilisées pour indiquer le nombre maximal de couches de transmission prises en charge par le terminal pour effectuer une transmission de liaison montante, et le nombre de mots de code correspondant au nombre de couches de transmission ; et, sur la base des premières informations, configurer pour le terminal un schéma de mappage de mot de code à couche utilisé pour effectuer une transmission de liaison montante, le schéma de mappage de mot de code à couche représentant une relation de mappage entre des mots de code et des couches de transmission. La présente divulgation concerne une solution d'adaptation pour l'extension de couches de transmission pour des terminaux effectuant une transmission de liaison montante.
PCT/CN2022/121924 2022-09-27 2022-09-27 Procédés et appareil de communication, et support d'enregistrement WO2024065231A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/121924 WO2024065231A1 (fr) 2022-09-27 2022-09-27 Procédés et appareil de communication, et support d'enregistrement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/121924 WO2024065231A1 (fr) 2022-09-27 2022-09-27 Procédés et appareil de communication, et support d'enregistrement

Publications (1)

Publication Number Publication Date
WO2024065231A1 true WO2024065231A1 (fr) 2024-04-04

Family

ID=90475202

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/121924 WO2024065231A1 (fr) 2022-09-27 2022-09-27 Procédés et appareil de communication, et support d'enregistrement

Country Status (1)

Country Link
WO (1) WO2024065231A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110855329A (zh) * 2018-08-20 2020-02-28 电信科学技术研究院有限公司 一种确定码字映射方式的方法及装置
WO2020063576A1 (fr) * 2018-09-27 2020-04-02 华为技术有限公司 Relation correspondante entre un bloc de transmission et un mot de code, dispositif et système associés
CN111801906A (zh) * 2018-10-10 2020-10-20 Oppo广东移动通信有限公司 无线通信方法和终端设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110855329A (zh) * 2018-08-20 2020-02-28 电信科学技术研究院有限公司 一种确定码字映射方式的方法及装置
WO2020063576A1 (fr) * 2018-09-27 2020-04-02 华为技术有限公司 Relation correspondante entre un bloc de transmission et un mot de code, dispositif et système associés
CN110958089A (zh) * 2018-09-27 2020-04-03 华为技术有限公司 传输块与码字的对应关系、相关设备以及系统
CN111801906A (zh) * 2018-10-10 2020-10-20 Oppo广东移动通信有限公司 无线通信方法和终端设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AT&T: "Codeword to layer mapping for DL and UL data channels", 3GPP DRAFT; R1-1716174 CODEWORD TO LAYER MAPPING FOR DL AND UL DATA CHANNELS, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Nagoya, Japan; 20170918 - 20170921, 12 September 2017 (2017-09-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051329797 *

Similar Documents

Publication Publication Date Title
US20230081293A1 (en) Data transmission method and data transmission apparatus
WO2022141074A1 (fr) Procédé d'indication de faisceau, appareil d'indication de faisceau, et support de stockage
WO2023070563A1 (fr) Procédé et appareil de détermination d'état d'indication de configuration de transmission et support de stockage
WO2021226746A1 (fr) Procédé de transmission de données, appareil de transmission de données et support de stockage
KR102657672B1 (ko) 데이터 전송 방법, 장치, 시스템 및 저장 매체
WO2022165856A1 (fr) Procédé de création de rapport d'informations, dispositif de création de rapport d'informations et support de stockage
WO2023123123A1 (fr) Procédé et appareil de détermination de ressources de domaine fréquentiel et support de stockage
WO2024065231A1 (fr) Procédés et appareil de communication, et support d'enregistrement
WO2022126555A1 (fr) Procédé de transmission, appareil de transmission et support de stockage
WO2024082312A1 (fr) Procédé et appareil de détermination d'état d'indicateur de configuration de transmission et support de stockage
WO2024087258A1 (fr) Procédé et appareil de détermination de ressources de signal de référence de détection de défaillance de faisceau, et support d'enregistrement
WO2024082314A1 (fr) Procédé et appareil de détermination d'état d'indicateur de configuration de transmission, et support de stockage
WO2024092585A1 (fr) Procédé, appareil et dispositif de communication, et support de stockage
WO2022205229A1 (fr) Procédé et dispositif de communication utilisés pour pusch, et support d'enregistrement
WO2024087118A1 (fr) Procédé et appareil de rapport de coefficient d'amplitude, et support de stockage
WO2024092786A1 (fr) Procédés de communication, appareil, dispositif et support d'enregistrement
WO2023122984A1 (fr) Procédé et appareil de déclenchement de srs, et support de stockage
WO2022205233A1 (fr) Procédé de communication pour un pusch, appareil de communication pour un pusch et support d'enregistrement
WO2023039785A1 (fr) Procédé de planification, appareil de planification et support de stockage
WO2022151490A1 (fr) Procédé et appareil de détermination d'informations d'état de canal et support de stockage
WO2023097698A1 (fr) Procédé et appareil de déclenchement de srs, et support de stockage
WO2022116103A1 (fr) Procédé d'indication de faisceau, dispositif d'indication de faisceau, et support d'enregistrement
WO2024082315A1 (fr) Procédé, appareil et dispositif de rétroaction d'informations d'état de canal, et support de stockage
WO2022217445A1 (fr) Procédé et appareil de communication multi-porteuses et support d'enregistrement
CN113411169B (zh) 资源分配的处理方法、装置及存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22959880

Country of ref document: EP

Kind code of ref document: A1