Communication method and communication apparatus

Abstract

Provided in the present application are a wireless communication method and a wireless communication apparatus. The method comprises: receiving first downlink control information and second downlink control information, the first downlink control information including content allocation information, and the content allocation information being used for indicating content allocation of a common message; on the basis of the first downlink control information, receiving a physical downlink shared channel (PDSCH), the PDSCH comprising the common message and a private message; on the basis of the content allocation information, determining the common message; and, on the basis of the second downlink control information, determining the private message.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on November 24, 2023, with application number 202311582566.5 and application name “Communication Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular, to a wireless communication method and a wireless communication device. Background Art

[0003] When a base station uses the same time-frequency resources to send data to multiple user equipment (UE) through space division multiplexing, it can eliminate interference between multiple users through precoding.

[0004] In precoding technology, the base station sends a channel status information (CSI) reference signal to the UE for downlink channel measurement. The UE then provides CSI feedback based on the measurement results, and the base station calculates the downlink precoding weights based on the feedback CSI.

[0005] However, when the base station calculates the precoding weights, the granularity in the frequency and / or time domains is constrained by the system complexity, as well as the CSI feedback accuracy and feedback frequency limitations. Precoding cannot effectively eliminate interference between users, resulting in limited interference in the system in high signal-to-noise ratio ranges.

[0006] How to enable the base station to transmit more data to the UE under the condition of limited system interference and improve the system throughput performance is an urgent problem to be solved. Summary of the Invention

[0007] The present application provides a communication method and a communication device for improving system throughput performance.

[0008] In a first aspect, a communication method is provided. The method may be executed by a terminal device, or may be executed by a module (such as a chip or circuit) of the terminal device, without limitation. For ease of description, the following description is based on an example of execution by a terminal device.

[0009] The method may include: receiving first downlink control information and second downlink control information, the first downlink control information including content allocation information, the content allocation information being used to indicate content allocation of a public message; receiving a physical downlink shared channel (PDSCH) based on the first downlink control information, the PDSCH including a public message and a private message; determining the public message based on the content allocation information; and determining the private message based on the second downlink control information.

[0010] It should be noted that the terminal device confirming the public message refers to the terminal device confirming the part of the public message that is sent to itself.

[0011] In addition, the terminal device receiving the private message means that the terminal device receives one or more private messages sent by the network device to one or more terminal devices. The terminal device confirming the private message means that the terminal device confirms the private message sent to itself among the one or more private messages.

[0012] Through the above solution, part of the data sent by the network device to the terminal device is placed in the public message, and the terminal device obtains the data sent to itself according to the content allocation information. In this case, the terminal device can exclude the public message from the information obtained from the PDSCH, and the remaining is the private message, so that the public message will not cause additional interference to the private message, thereby enabling the network device to transmit more data to the terminal device under the condition of limited system interference, thereby improving the system throughput performance.

[0013] In combination with the first aspect, in some implementations of the first aspect, receiving PDSCH based on the first downlink control information includes: receiving PDSCH on a first time domain resource, where the first time domain resource is a time domain resource indicated by the first downlink control information.

[0014] With the above solution, the first downlink control information indicates the resources for receiving public messages and private messages, so there is no need to separately indicate the resources for receiving private messages in the second downlink control information, thus saving communication resources.

[0015] In combination with the first aspect, in some implementations of the first aspect, the content allocation information includes a mapping relationship between a common message in a PDSCH and a terminal device.

[0016] In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving first indication information, where the first indication information is used to instruct monitoring of the first downlink control information and the second downlink control information.

[0017] Through the above solution, the network device instructs the terminal device to monitor the first downlink control information and the second downlink control information, so that the network device can determine the method of transmitting data to the terminal device according to the system throughput requirement, thereby improving the system throughput performance.

[0018] In combination with the first aspect, in some implementations of the first aspect, the first indication information includes at least one of the following information: rate-splitting RS transmission mode indication information, monitoring indication information of the first downlink control information, search space configuration of the first downlink control information, monitoring indication information of the second downlink control information, search space configuration of the second downlink control information, or an association relationship between the first downlink control information and the second downlink control information.

[0019] In combination with the first aspect, in some implementations of the first aspect, the method further includes: monitoring the first downlink control information and the second downlink control information based on the first indication information.

[0020] In one possible implementation, monitoring the first downlink control information and the second downlink control information based on the first indication information includes: based on the RS transmission mode indication information, using the current search space configuration of the first downlink control information and the second downlink control information to monitor the first downlink control information and the second downlink control information.

[0021] In a possible implementation, monitoring the first downlink control information and the second downlink control information based on the first indication information includes: based on the monitoring indication information of the first downlink control information, using the current search space configuration of the first downlink control information to monitor the first downlink control information.

[0022] In a possible implementation manner, monitoring the first downlink control information and the second downlink control information based on the first indication information includes: monitoring the first downlink control information based on a search space configuration of the first downlink control information.

[0023] In a possible implementation, monitoring the first downlink control information and the second downlink control information based on the first indication information includes: based on the monitoring indication information of the second downlink control information, using the current search space configuration of the second downlink control information to monitor the first downlink control information.

[0024] In a possible implementation manner, monitoring the first downlink control information and the second downlink control information based on the first indication information includes: monitoring the second downlink control information based on a search space configuration of the second downlink control information.

[0025] In one possible implementation, monitoring the first downlink control information and the second downlink control information based on the first indication information includes: based on the association relationship between the first downlink control information and the second downlink control information, using the current search space configuration of the first downlink control information and the second downlink control information to monitor the first downlink control information and the second downlink control information.

[0026] In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving second indication information, where the second indication information is used to instruct monitoring of the first downlink control information.

[0027] In combination with the first aspect, in some implementations of the first aspect, the second indication information includes at least one of the following information: monitoring indication information of the first downlink control information, the search space configuration of the first downlink control information, and the search space configuration of the second downlink control information associated with the first downlink control information.

[0028] In combination with the first aspect, in some implementations of the first aspect, the method further includes: monitoring the first downlink control information based on the second indication information.

[0029] In combination with the first aspect, in some implementations of the first aspect, the first downlink control information includes monitoring indication information of the second downlink control information, and a search space configuration of the second downlink control information associated with the first downlink control information.

[0030] With the above solution, the first downlink control information is used to indicate monitoring of the second downlink control information, so that the network device can switch the mode of transmitting data to the terminal device according to the system throughput requirement, thereby reducing the switching delay.

[0031] In combination with the first aspect, in some implementations of the first aspect, the method further includes: monitoring the second downlink control information based on the first downlink control information.

[0032] In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving third indication information, where the third indication information is used to instruct monitoring of the second downlink control information.

[0033] In combination with the first aspect, in some implementations of the first aspect, the third indication information includes at least one of the following information: monitoring indication information of the second downlink control information, the search space configuration of the second downlink control information, and the search space configuration of the first downlink control information associated with the second downlink control information.

[0034] In combination with the first aspect, in some implementations of the first aspect, the method further includes: monitoring the second downlink control information based on the third indication information.

[0035] In combination with the first aspect, in some implementations of the first aspect, the second downlink control information includes monitoring indication information of the first downlink control information, and a search space configuration of the first downlink control information associated with the second downlink control information.

[0036] With the above solution, the second downlink control information is used to indicate monitoring of the first downlink control information, so that the network device can switch the mode of transmitting data to the terminal device according to the system throughput requirement, thereby reducing the switching delay.

[0037] In combination with the first aspect, in some implementations of the first aspect, the method further includes: monitoring the first downlink control information based on the second downlink control information.

[0038] In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving fourth indication information, where the fourth indication information is used to instruct the terminal device to stop monitoring the first downlink control information and / or the second downlink control information.

[0039] In combination with the first aspect, in some implementations of the first aspect, the fourth indication information includes at least one of the following information: rate-splitting RS transmission mode exit indication information, stop monitoring indication information of the first downlink control information, or stop monitoring indication information of the second downlink control information.

[0040] In combination with the first aspect, in some implementations of the first aspect, the method further includes: stopping monitoring the first downlink control information and / or the second downlink control information based on fourth indication information.

[0041] In a second aspect, a communication method is provided, which can be executed by a network device, or by a module (such as a chip or circuit) of the network device, without limitation. For ease of description, the following description is based on an example of execution by a network device.

[0042] The method may include: sending first downlink control information and second downlink control information, the first downlink control information including content allocation information, the content allocation information being used to indicate content allocation of public messages, the first downlink control information being used to receive public messages and private messages and to determine public messages, the second downlink control information being used to determine private messages; sending a physical downlink shared channel PDSCH, the PDSCH including public messages and private messages.

[0043] In combination with the second aspect, in some implementations of the second aspect, sending a physical downlink shared channel PDSCH includes: sending the PDSCH on a first time domain resource, where the first time domain resource is a time domain resource indicated by first downlink control information.

[0044] In combination with the second aspect, in some implementations of the second aspect, the content allocation information includes a mapping relationship between a common message in a PDSCH and a terminal device.

[0045] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending first indication information, where the first indication information is used to instruct the terminal device to monitor the first downlink control information and the second downlink control information.

[0046] In combination with the second aspect, in some implementation methods of the second aspect, the first indication information includes at least one of the following information: rate-splitting RS transmission mode indication information, monitoring indication information of the first downlink control information, search space configuration of the first downlink control information, monitoring indication information of the second downlink control information, search space configuration of the second downlink control information, or an association relationship between the first downlink control information and the second downlink control information.

[0047] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending second indication information, where the second indication information is used to instruct the terminal device to monitor the first downlink control information.

[0048] In combination with the second aspect, in some implementations of the second aspect, the second indication information includes at least one of the following information: monitoring indication information of the first downlink control information, the search space configuration of the first downlink control information, and the search space configuration of the second downlink control information associated with the first downlink control information.

[0049] In combination with the second aspect, in some implementations of the second aspect, the first downlink control information includes monitoring indication information of the second downlink control information, and a search space configuration of the second downlink control information associated with the first downlink control information.

[0050] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending third indication information, where the third indication information is used to instruct the terminal device to monitor the second downlink control information.

[0051] In combination with the second aspect, in some implementations of the second aspect, the third indication information includes at least one of the following information: monitoring indication information of the first downlink control information, the search space configuration of the first downlink control information, and the search space configuration of the second downlink control information associated with the first downlink control information.

[0052] In combination with the second aspect, in some implementations of the second aspect, the first downlink control information includes monitoring indication information of the second downlink control information, and a search space configuration of the second downlink control information associated with the first downlink control information.

[0053] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending fourth indication information, where the fourth indication information is used to instruct the terminal device to stop monitoring the first downlink control information and / or the second downlink control information.

[0054] In combination with the second aspect, in some implementations of the second aspect, the fourth indication information includes at least one of the following information: rate-splitting RS transmission mode exit indication information, stop monitoring indication information of the first downlink control information, or stop monitoring indication information of the second downlink control information.

[0055] In a third aspect, a communication device is provided, which may be a terminal device or a module (such as a chip or circuit) of the terminal device.

[0056] The device includes: a receiving unit, configured to receive first downlink control information and second downlink control information, wherein the first downlink control information includes content allocation information, and the content allocation information is used to indicate content allocation of a public message; a processing unit, configured to control the device to receive a physical downlink shared channel (PDSCH) based on the first downlink control information, wherein the PDSCH includes a public message and a private message; and a processing unit, configured to determine the public message based on the content allocation information and the private message based on the second downlink control information.

[0057] In a possible implementation manner, receiving the PDSCH based on the first downlink control information includes: receiving the PDSCH on a first time domain resource, where the first time domain resource is a time domain resource indicated by the first downlink control information.

[0058] In a possible implementation, the content allocation information includes a mapping relationship between a common message in a PDSCH and a terminal device.

[0059] In a possible implementation manner, the receiving unit is further configured to receive first indication information, where the first indication information is used to instruct monitoring of the first downlink control information and the second downlink control information.

[0060] In one possible implementation, the first indication information includes at least one of the following information: rate-splitting RS transmission mode indication information, monitoring indication information of the first downlink control information, search space configuration of the first downlink control information, monitoring indication information of the second downlink control information, search space configuration of the second downlink control information, or an association relationship between the first downlink control information and the second downlink control information.

[0061] In a possible implementation manner, the processing unit is further configured to control the apparatus to monitor the first downlink control information and the second downlink control information based on the first indication information.

[0062] In a possible implementation manner, the receiving unit is further configured to receive second indication information, where the second indication information is used to instruct monitoring of the first downlink control information.

[0063] In a possible implementation manner, the second indication information includes at least one of the following information: monitoring indication information of the first downlink control information, search space configuration of the first downlink control information, and search space configuration of the second downlink control information associated with the first downlink control information.

[0064] In a possible implementation manner, the processing unit is further configured to control the apparatus to monitor the first downlink control information based on the second indication information.

[0065] In a possible implementation manner, the first downlink control information includes monitoring indication information of the second downlink control information and a search space configuration of the second downlink control information associated with the first downlink control information.

[0066] In a possible implementation manner, the processing unit is further configured to control the apparatus to monitor the second downlink control information based on the first downlink control information.

[0067] In a possible implementation manner, the receiving unit is further configured to receive third indication information, where the third indication information is used to instruct monitoring of the second downlink control information.

[0068] In a possible implementation manner, the third indication information includes at least one of the following information: monitoring indication information of the second downlink control information, search space configuration of the second downlink control information, and search space configuration of the first downlink control information associated with the second downlink control information.

[0069] In a possible implementation manner, the processing unit is further configured to control the apparatus to monitor the second downlink control information based on the third indication information.

[0070] In a possible implementation manner, the second downlink control information includes monitoring indication information of the first downlink control information and a search space configuration of the first downlink control information associated with the second downlink control information.

[0071] In a possible implementation manner, the processing unit is further configured to control the apparatus to monitor the first downlink control information based on the second downlink control information.

[0072] In a possible implementation, the receiving unit is further used to receive fourth indication information, where the fourth indication information is used to instruct the terminal device to stop monitoring the first downlink control information and / or the second downlink control information.

[0073] In a possible implementation manner, the fourth indication information includes at least one of the following information: rate split RS transmission mode exit indication information, stop monitoring indication information of the first downlink control information, or stop monitoring indication information of the second downlink control information.

[0074] In a possible implementation manner, the processing unit is further configured to control the apparatus to stop monitoring the first downlink control information and / or the second downlink control information based on the fourth indication information.

[0075] In a fourth aspect, a communication device is provided. The device may be a network device or a module (eg, a chip or a circuit) of a network device.

[0076] The device includes: a sending unit, used to send first downlink control information and second downlink control information, the first downlink control information includes content allocation information, the content allocation information is used to indicate the content allocation of public messages, the first downlink control information is used to receive public messages and private messages and determine public messages, and the second downlink control information is used to determine private messages; the sending unit is also used to send a physical downlink shared channel PDSCH, the PDSCH includes public messages and private messages.

[0077] In a possible implementation manner, sending a physical downlink shared channel PDSCH includes: sending the PDSCH on a first time domain resource, where the first time domain resource is a time domain resource indicated by first downlink control information.

[0078] In a possible implementation, the content allocation information includes a mapping relationship between a common message in a PDSCH and a terminal device.

[0079] In a possible implementation, the sending unit is further used to send first indication information, where the first indication information is used to instruct the terminal device to monitor the first downlink control information and the second downlink control information.

[0080] In one possible implementation, the first indication information includes at least one of the following information: rate-splitting RS transmission mode indication information, monitoring indication information of the first downlink control information, search space configuration of the first downlink control information, monitoring indication information of the second downlink control information, search space configuration of the second downlink control information, or an association relationship between the first downlink control information and the second downlink control information.

[0081] In a possible implementation, the sending unit is further used to send second indication information, where the second indication information is used to instruct the terminal device to monitor the first downlink control information.

[0082] In a possible implementation manner, the second indication information includes at least one of the following information: monitoring indication information of the first downlink control information, search space configuration of the first downlink control information, and search space configuration of the second downlink control information associated with the first downlink control information.

[0083] In a possible implementation manner, the first downlink control information includes monitoring indication information of the second downlink control information and a search space configuration of the second downlink control information associated with the first downlink control information.

[0084] In a possible implementation, the sending unit is further used to send third indication information, where the third indication information is used to instruct the terminal device to monitor the second downlink control information.

[0085] In a possible implementation manner, the third indication information includes at least one of the following information: monitoring indication information of the first downlink control information, search space configuration of the first downlink control information, and search space configuration of the second downlink control information associated with the first downlink control information.

[0086] In a possible implementation manner, the first downlink control information includes monitoring indication information of the second downlink control information and a search space configuration of the second downlink control information associated with the first downlink control information.

[0087] In a possible implementation, the sending unit is further used to send fourth indication information, where the fourth indication information is used to instruct the terminal device to stop monitoring the first downlink control information and / or the second downlink control information.

[0088] In a possible implementation manner, the fourth indication information includes at least one of the following information: rate split RS transmission mode exit indication information, stop monitoring indication information of the first downlink control information, or stop monitoring indication information of the second downlink control information.

[0089] In a fifth aspect, a communication device is provided, comprising a processor coupled to a memory, and configured to execute the method of any possible implementation of the first aspect. In one possible implementation, the memory is included in the communication device. In another possible implementation, the communication device further comprises a communication interface, and the processor is coupled to the communication interface.

[0090] In one implementation, the communication device is a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver or an input / output interface. In one possible implementation, the transceiver may be a transceiver circuit. In another possible implementation, the input / output interface may be an input / output circuit.

[0091] In another implementation, the communication device is a chip or a chip system. When the communication device is a chip or a chip system, the communication interface can be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip or chip system. The processor can also be embodied as a processing circuit or a logic circuit.

[0092] In a sixth aspect, a communication device is provided, comprising a processor coupled to a memory, and configured to execute the method of any possible implementation of the second aspect. In one possible implementation, the memory is included in the communication device. In another possible implementation, the communication device further comprises a communication interface, and the processor is coupled to the communication interface.

[0093] In one implementation, the communication device is a network device. When the communication device is a network device, the communication interface may be a transceiver or an input / output interface. In one possible implementation, the transceiver may be a transceiver circuit. In another possible implementation, the input / output interface may be an input / output circuit.

[0094] In another implementation, the communication device is a chip or a chip system. When the communication device is a chip or a chip system, the communication interface can be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip or chip system. The processor can also be embodied as a processing circuit or a logic circuit.

[0095] In a seventh aspect, a communication device is provided, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive a signal via the input circuit and transmit a signal via the output circuit, so that the method of any of the first and second aspects, and any possible implementation of the aforementioned aspects, is implemented.

[0096] In a specific implementation, the communication device may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, or various logic circuits. The input signal received by the input circuit may be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit may be, for example, but not limited to, output to a transmitter and transmitted by the transmitter. The input circuit and the output circuit may be different circuits or the same circuit, in which case the circuit functions as an input circuit and an output circuit at different times. The embodiments of the present application do not limit the specific implementation of the processor and various circuits.

[0097] In an eighth aspect, a processing device is provided, comprising a processor and a memory. The processor is configured to read instructions stored in the memory and receive signals via a receiver and transmit signals via a transmitter to execute the method of any one of the first and second aspects, and any possible implementation of the aforementioned aspects.

[0098] In a possible implementation, there are one or more processors and one or more memories.

[0099] In a possible implementation, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

[0100] In the specific implementation process, the memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated with the processor on the same chip or can be set on different chips. The embodiments of the present application do not limit the type of memory and the setting method of the memory and the processor.

[0101] It should be understood that related data interaction processes, such as sending indication information, can be the process of outputting indication information from the processor, and receiving capability information can be the process of receiving input capability information from the processor. Specifically, the output data of the processing can be output to the transmitter, and the input data received by the processor can come from the receiver. The transmitter and receiver can be collectively referred to as a transceiver.

[0102] The processor in the above aspects can be a chip, which can be implemented by hardware or software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, which is implemented by reading the software code stored in the memory. The memory can be integrated in the processor or located outside the processor and exist independently.

[0103] In the ninth aspect, a computer program product is provided, which includes: a computer program (also referred to as code, or instructions), which, when run, enables a computer to execute any one of the first to second aspects, as well as any possible implementation method of the above aspects.

[0104] In the tenth aspect, a computer-readable storage medium is provided, which stores a computer program (also referred to as code, or instructions). When the computer program is run on a computer, the computer executes any one of the first to second aspects above, as well as any possible implementation of the above aspects.

[0105] In the eleventh aspect, a chip system is provided, comprising a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a communication device equipped with the chip system executes any one of the first to second aspects above, as well as a method in any possible implementation of the above aspects.

[0106] Among them, the chip system may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

[0107] In the twelfth aspect, a communication system is provided, comprising at least one of the aforementioned terminal device network devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0108] FIG1 is a schematic diagram of an example of a communication system to which the present application is applied.

[0109] FIG2 is a schematic flowchart of a communication method provided in an embodiment of the present application.

[0110] FIG3 is a schematic flowchart of a communication method provided in an embodiment of the present application.

[0111] FIG4 is a schematic flow chart of a communication method provided in an embodiment of the present application.

[0112] FIG5 is a schematic block diagram of a communication device provided in an embodiment of the present application.

[0113] FIG6 is a schematic block diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0114] The technical solution in this application will be described below with reference to the accompanying drawings.

[0115] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) system or new radio (NR) and future communication systems, vehicle-to-other devices (V2X), where V2X may include vehicle to network (V2N), vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), etc., long term evolution-vehicle (LTE-V), Internet of Vehicles, machine type communication (MTC), Internet of Things (IoT), etc. things, IoT), long term evolution-machine (LTE-M), machine to machine (M2M), etc.

[0116] Figure 1 is a schematic diagram of a communication system provided by an embodiment of the present application. As shown in Figure 1 , the communication system 100 includes at least one network device, such as the network device 110 shown in Figure 1 ; the communication system 100 may also include at least one terminal device, such as the terminal device 120 and / or the terminal device 130 shown in Figure 1 . The network device 110 and the terminal devices 120 / 130 can communicate via a wireless link and exchange information. It is understood that network devices and terminal devices may also be referred to as communication devices.

[0117] A network device is a network-side device with wireless transceiver functions. A network device may be a device in a radio access network (RAN) that provides wireless communication functions for terminal devices, and is called a RAN device. For example, the network device may be a base station, an evolved NodeB (eNodeB), a next-generation NodeB (gNB) in a 5G mobile communication system, a base station that has been subsequently evolved by 3GPP, a transmission reception point (TRP), an access node in a WiFi system, a wireless relay node, a wireless backhaul node, etc. In communication systems using different radio access technologies (RAT), the names of devices with base station functions may be different. For example, in an LTE system, it may be called an eNB or eNodeB, and in a 5G system or NR system, it may be called a gNB. This application does not limit the specific name of the base station. The network device may include one or more co-located or non-co-located transmission and reception points. For another example, the network device may include at least one of the following items: one or more centralized units (CU), one or more distributed units (DU), and one or more radio units (RU). In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, the radio access network may also be an open radio access network (O-RAN) architecture. In the ORAN system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. Any of the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. Exemplarily, the functions of the CU may be implemented by one entity or different entities. For example, the functions of the CU are further divided, that is, the control plane and the user plane are separated and implemented through different entities, namely the control plane CU entity (i.e., CU-CP entity) and the user plane CU entity (i.e., CU-UP entity). The CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the functions of the access network device.For example, the CU is responsible for processing non-real-time protocols and services, implementing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, implementing the functions of the radio link control (RLC), media access control (MAC), and physical (PHY) layers. In this way, some functions of the wireless access network device can be implemented through multiple network function entities. These network function entities can be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (for example, a cloud platform). The network device may also include an active antenna unit (AAU). The AAU implements some physical layer processing functions, RF processing, and related functions of the active antenna. Since RRC layer information will eventually become PHY layer information, or be converted from PHY layer information, in this architecture, high-layer signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or by the DU+AAU. It can be understood that the network device can be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into a network device in the access network (radio access network, RAN), or the CU can be divided into a network device in the core network (core network, CN), and this application does not limit this. For example, in the vehicle to everything (V2X) technology, the access network device can be a road side unit (RSU). The multiple access network devices in the communication system can be base stations of the same type or different types. The base station can communicate with the terminal device or communicate with the terminal device through a relay station. In an embodiment of the present application, the device for realizing the function of the network device can be the network device itself, or it can be a device that can support the network device to realize the function, such as a chip system or a combination device or component that can realize the function of the access network device, and the device can be installed in the network device. In an embodiment of the present application, the chip system can be composed of chips, or it can include chips and other discrete devices.

[0118] A terminal device is a user-side device with wireless transceiver capabilities. It can be a fixed device, mobile device, handheld device (such as a mobile phone), wearable device, in-vehicle device, or a wireless device built into any of the above devices (such as a communication module, modem, or chip system). Terminal devices are used to connect people, objects, and machines, and can be used in a wide range of scenarios, such as cellular communications, device-to-device (D2D) communications, vehicle-to-everything (V2X) communications, machine-to-machine / machine-type communications (M2M / MTC) communications, the Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical care, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, drones, robots, and other scenarios. Exemplarily, the terminal device can be a handheld terminal in cellular communication, a communication device in D2D, an IoT device in MTC, a surveillance camera in intelligent transportation and smart cities, or a communication device on a drone, etc. The terminal device may sometimes be referred to as user equipment (UE), user terminal, user device, user unit, user station, terminal, access terminal, access station, UE station, remote station, mobile device or wireless communication device, etc. The terminal device may also be a terminal device in an IoT system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection. In an embodiment of the present application, IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrowband (NB) technology. In an embodiment of the present application, the device for realizing the function of the terminal device may be a terminal device, or a device that can support the terminal device to realize the function, such as a chip system or a combination device or component that can realize the function of the terminal device. The device can be installed in the terminal device.

[0119] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0120] For example, the communication system 100 may further include an application function (AF) network element, which is a control plane network function provided by the operator network and is used to provide application layer information; the communication system 100 may further include a session management function (SMF) network element, which is a control plane network function provided by the operator network. In the embodiment of the present application, when the communication system 100 includes the AF network element and the SMF network element, the AF can send service-related information to the network device via the SMF.

[0121] To meet the growing demand for wireless communications, wireless communication systems are introducing an increasing number of new spectrum resources. High frequencies, with their inherent advantage of large bandwidth, are an effective method for improving communication service capabilities. However, high frequencies suffer from significantly greater path loss than low frequencies. To overcome this drawback, base stations utilize multiple-input and multiple-output (MIMO) technology through beamforming, concentrating energy radiation in specific directions and improving coverage performance. Furthermore, base stations utilize multi-user MIMO (MU-MIMO) for spatial division multiplexing to improve spectral efficiency and system throughput. To mitigate interference between users, base stations employ precoding to mitigate inter-user interference.

[0122] In precoding technology, the base station transmits a channel status information (CSI) reference signal to the UE for downlink channel measurement. The UE then provides CSI feedback based on the measurement results, and the base station then calculates downlink precoding weights based on the feedback CSI. However, the granularity of the base station's calculation of precoding weights in the frequency and / or time domains is constrained by system complexity, as well as limitations on CSI feedback accuracy and frequency. As system throughput increases, the base station transmits more information to the UE, making precoding ineffective in eliminating inter-user interference. This results in interference limitation in high signal-to-noise ratio (SNR) ranges.

[0123] How to enable the base station to transmit more data to the UE under the condition of limited system interference and improve the system throughput performance is an urgent problem to be solved.

[0124] This application provides multiple communication methods that can improve the system throughput performance when the system interference is limited.

[0125] It should be understood that the description of the specific scenarios in the embodiments of the present application is only an example. In addition to being applicable to the application scenarios described above, the methods provided in the embodiments of the present application are also applicable to application scenarios with similar problems.

[0126] The following describes in detail various communication methods provided in the embodiments of the present application with reference to the accompanying drawings.

[0127] It should be understood that the step numbers in the embodiments of the present application are for illustration only and do not limit the order in which the steps occur.

[0128] For ease of understanding and explanation, the following describes the communication method of the embodiment of the present application by taking the interaction between the terminal device and the network device as an example, but this should not constitute any limitation on the execution subject of the communication method of the embodiment of the present application. For example, the method performed by the terminal device can also be performed by a module (such as a circuit, a chip or a chip system, etc.) of the terminal device, and can also be implemented by a logical node, a logical module or software that can realize all or part of the terminal device function. The method performed by the network device can also be performed by a module (such as a circuit, a chip or a chip system, etc.) of the network device, and can also be implemented by a logical node, a logical module or software that can realize all or part of the network device function.

[0129] The message sent by the base station to each UE can be regarded as a private message of the UE. Each downlink control information corresponds to a private message sent to the UE. The UE receives and decodes the downlink control information to determine the corresponding private message.

[0130] In the method provided in this application, in addition to the private message sent by the base station to the UE, the base station also sends a public message to the UE. The public message includes information sent to multiple UEs, and the UE needs to obtain the part of the information sent to itself from the public message.

[0131] FIG2 shows a communication method 200 provided in the present application. The method 200 includes at least part of the method shown in FIG2 .

[0132] S210, the network device sends first indication information to the terminal device.

[0133] Specifically, the first indication information is used to instruct the terminal device to monitor the first downlink control information and the second downlink control information.

[0134] Optionally, the first downlink control information may also be referred to as group-DCI, and is used to receive and determine a public message. The first downlink control information includes content allocation information, and the content allocation information is used to indicate content allocation of the public message. Optionally, the first downlink control information is also used to receive a private message.

[0135] Optionally, the second downlink control information may also be called dedicated-DCI, which is used to receive and / or determine a private message.

[0136] It should be noted that, in the present application, the terminal device determines the public message, which means that the terminal device determines the part of the public message sent to itself.

[0137] In this application, a terminal device receiving a private message means that the terminal device receives one or more private messages sent by a network device to one or more terminal devices. A terminal device determining a private message means that the terminal device determines that a private message is sent to itself from one or more private messages.

[0138] Optionally, the first indication information may be carried in a medium access control-control element (MAC-CE) or a radio resource control (RRC) signaling.

[0139] Optionally, the first indication information includes at least one of the following information:

[0140] 1) Rate splitting (RS) transmission mode indication information, used to instruct the terminal device to enter RS-MIMO mode. In this RS-MIMO mode, the terminal device executes the method described in this embodiment;

[0141] 2) monitoring instruction information of the first downlink control information, used to instruct the terminal device to monitor the first downlink control information;

[0142] 3) Search space (SS) configuration of the first downlink control information;

[0143] 4) monitoring instruction information of the second downlink control information, used to instruct the terminal device to monitor the second downlink control information;

[0144] 5) Search space configuration for the second downlink control information;

[0145] 6) The association relationship between the first downlink control information and the second downlink control information.

[0146] S220, the terminal device monitors the first downlink control information and the second downlink control information based on the first indication information.

[0147] After receiving the first indication information, the terminal device monitors the first downlink control information and the second downlink control information according to the instruction of the first indication information.

[0148] Specifically, when the information included in the first indication information is different, the operation performed by the terminal device is also different. According to the different information included in the first indication information, the operation performed by the terminal device is as follows:

[0149] 1) The first indication information includes RS transmission mode indication information.

[0150] The terminal device monitors the first downlink control information and the second downlink control information respectively according to the default or current SS configuration of the first downlink control information and the second downlink control information.

[0151] 2) The first indication information includes monitoring indication information of the first downlink control information.

[0152] The terminal device monitors the first downlink control information according to the default or current SS configuration of the first downlink control information.

[0153] 3) The first indication information includes the SS configuration of the first downlink control information.

[0154] The terminal device monitors the first downlink control information according to the search space configuration of the received first downlink control information.

[0155] 4) The first indication information includes monitoring indication information of the second downlink control information.

[0156] The terminal device monitors the second downlink control information according to the default or current SS configuration of the first downlink control information.

[0157] 5) The first indication information includes the search space configuration of the second downlink control information.

[0158] The terminal device monitors the second downlink control information according to the SS configuration of the received second downlink control information.

[0159] 6) The first indication information includes an association relationship between the first downlink control information and the second downlink control information.

[0160] The terminal device updates the association relationship between the first downlink control information and the second downlink control information, and starts to monitor the first downlink control information and the second downlink control information respectively according to the default or current SS configuration of the first downlink control information and the second downlink control information.

[0161] S230, the network device sends first downlink control information and second downlink control information to the terminal device.

[0162] The network device instructs the terminal device to monitor the first downlink control information and the second downlink control information through the first indication information, and sends the first downlink control information and the second downlink control information on the corresponding SS configuration, so that the terminal device receives the first downlink control information and the second downlink control information.

[0163] In one implementation, the first downlink control information is used to receive and determine a public message, and the second downlink control information is used to receive and determine a private message. In this case, the first downlink control information instructs the terminal device to use a first time domain resource and / or a first frequency domain resource to receive the public message, and the second downlink control information instructs the terminal device to use a second time domain resource and / or a second frequency domain resource to receive the private message.

[0164] In another implementation, the second downlink control information is used to receive and determine a public message and is also used to receive a private message, and the second downlink control information is used to determine the private message. In this case, the first downlink control information indicates the first time domain resource and / or the first frequency domain resource for the terminal device to receive the public message and the private message; the second downlink control information does not indicate the time domain resource and / or the frequency domain resource, that is, the second downlink control information does not have a frequency domain resource allocation (FDRA) and / or time domain resource allocation (TDRA) field, so that when the UE blindly detects the second downlink control information, it assumes that the time domain resource allocation field is 0 bits, and the resource configuration refers to its associated first downlink control information.

[0165] S240, the network device sends a public message and a private message to the terminal device.

[0166] In one implementation, the first downlink control information is used to receive and determine a public message, and the second downlink control information is used to receive and determine a private message. In this case, the network device sends a PDSCH including a public message to the terminal device via a first time domain resource and / or a first frequency domain resource, and sends a PDSCH including a private message to the terminal device via a second time domain resource and / or a second frequency domain resource.

[0167] In another implementation, the second downlink control information is used to receive and determine the public message and is also used to receive the private message, and the second downlink control information is used to determine the private message. In this case, the network device sends a PDSCH including the public message and the private message to the terminal device via the first time domain resource and / or the first frequency domain resource.

[0168] S250: The terminal device receives and determines a public message and a private message according to the first downlink control information and the second downlink control information.

[0169] In one implementation, the first downlink control information is used to receive and determine a public message, and the second downlink control information is used to receive and determine a private message. In this case, the terminal device receives a PDSCH including a public message via a first time domain resource and / or a first frequency domain resource, and receives a PDSCH including a private message via a second time domain resource and / or a second frequency domain resource.

[0170] In another implementation, the second downlink control information is used to receive and determine the public message and is also used to receive the private message, and the second downlink control information is used to determine the private message. In this case, the terminal device receives the PDSCH including the public message and the private message via the first time domain resource and / or the first frequency domain resource.

[0171] After receiving the public message and private message, the terminal device uses the first downlink control information to decode the public message from the PDSCH. The remaining information in the PDSCH, excluding the public message, is the private message. The terminal device then determines the public message based on the content allocation information—that is, the portion of the public message intended for it—and the private message based on the second downlink control information.

[0172] Optionally, the content allocation information may be a mapping relationship between a UE index (index, ID) and a code block (CB) / code block group (CBG) ID, as shown in Table 1:

[0173] Table 1

[0174] S260: The network device sends fourth indication information to the terminal device.

[0175] The fourth indication information is used to instruct the terminal device to stop monitoring the first downlink control information and / or the second downlink control information.

[0176] Optionally, the fourth indication information includes at least one of the following information:

[0177] Rate split RS transmission mode exit indication information, stop monitoring indication information of the first downlink control information, or stop monitoring indication information of the second downlink control information.

[0178] After receiving the fourth indication information, the terminal device stops monitoring the first downlink control information and / or the second downlink control information based on the fourth indication information.

[0179] Specifically, when the fourth indication information includes different information, the terminal device performs different operations. According to the different information included in the fourth indication information, the terminal device performs the following operations:

[0180] 1) The fourth indication information includes RS transmission mode exit indication information.

[0181] The terminal device monitors the first downlink control information and stops monitoring the second downlink control information or continues monitoring the second downlink control information but assumes that the time domain resource allocation field is restored during blind detection.

[0182] 2) The fourth indication information includes indication information of stopping monitoring of the first downlink control information.

[0183] The terminal device stops monitoring the first downlink control information.

[0184] 3) The fourth indication information includes indication information of stopping monitoring of the second downlink control information.

[0185] The terminal device stops monitoring the second downlink control information or continues to monitor the second downlink control information but assumes that the time domain resource allocation field is restored during blind detection.

[0186] FIG3 shows another communication method 300 provided in the present application. The method 300 includes at least part of the method shown in FIG3 .

[0187] S310, the network device sends second indication information to the terminal device.

[0188] Specifically, the second indication information is used to instruct the terminal device to monitor the first downlink control information.

[0189] Optionally, the second indication information may be carried in MAC-CE or RRC signaling.

[0190] Optionally, the second indication information includes at least one of the following information:

[0191] 1) monitoring instruction information of the first downlink control information, used to instruct the terminal device to monitor the first downlink control information;

[0192] 3) SS configuration of the first downlink control information and SS configuration of the second downlink control information associated with the first downlink control information.

[0193] For the rest of the description, please refer to step S210.

[0194] S320, the terminal device monitors the first downlink control information according to the second indication information.

[0195] After receiving the second indication information, the terminal device monitors the first downlink control information according to the instruction of the second indication information.

[0196] Specifically, when the second indication information includes different information, the terminal device performs different operations. According to the different information included in the second indication information, the terminal device performs the following operations:

[0197] 1) The second indication information includes monitoring indication information of the first downlink control information.

[0198] The terminal device monitors the first downlink control information according to the default or current SS configuration of the first downlink control information.

[0199] 2) The second indication information includes the SS configuration of the first downlink control information.

[0200] The terminal device monitors the first downlink control information according to the search space configuration of the received first downlink control information.

[0201] S330, the network device sends first downlink control information to the terminal device.

[0202] The network device instructs the terminal device to monitor the first downlink control information through the second indication information, and sends the first downlink control information on the corresponding SS configuration, so that the terminal device receives the first downlink control information.

[0203] The first downlink control information includes monitoring indication information of the second downlink control information and SS configuration of the second downlink control information associated with the first downlink control information.

[0204] For the rest of the description, please refer to step S230.

[0205] S340: The terminal device monitors the second downlink control information based on the first downlink control information.

[0206] The terminal device monitors the second downlink control information according to the monitoring indication information of the second downlink control information in the first downlink control information and the SS configuration of the second downlink control information associated with the first downlink control information.

[0207] S350, the network device sends second downlink control information to the terminal device.

[0208] For the rest of the description, please refer to step S230.

[0209] S360: The network device sends a public message and a private message to the terminal device.

[0210] Refer to step S240.

[0211] S370, the terminal device receives and determines the public message and the private message according to the first downlink control information and the second downlink control information.

[0212] Refer to step S250.

[0213] S380, the network device sends fourth indication information to the terminal device, instructing the terminal device to stop monitoring the first downlink control information and / or the second downlink control information.

[0214] Refer to step S260.

[0215] FIG4 shows another communication method 400 provided in the present application. The method 400 includes at least part of the method shown in FIG4 .

[0216] S410, the network device sends third indication information to the terminal device.

[0217] Specifically, the third indication information is used to instruct the terminal device to monitor the second downlink control information.

[0218] Optionally, the third indication information may be carried in MAC-CE or RRC signaling.

[0219] Optionally, the third indication information includes at least one of the following information:

[0220] 1) monitoring instruction information of the second downlink control information, used to instruct the terminal device to monitor the second downlink control information;

[0221] 3) SS configuration of the second downlink control information and the SS configuration of the first downlink control information associated with the second downlink control information.

[0222] For the rest of the description, please refer to step S210.

[0223] S420, the terminal device monitors the second downlink control information according to the third indication information.

[0224] After receiving the third indication information, the terminal device monitors the second downlink control information according to the instruction of the third indication information.

[0225] Specifically, when the information included in the third indication information is different, the operation performed by the terminal device is also different. According to the different information included in the third indication information, the operation performed by the terminal device is as follows:

[0226] 1) The third indication information includes monitoring indication information of the second downlink control information.

[0227] The terminal device monitors the second downlink control information according to the default or current SS configuration of the second downlink control information.

[0228] 2) The third indication information includes the SS configuration of the second downlink control information.

[0229] The terminal device monitors the second downlink control information according to the search space configuration of the received second downlink control information.

[0230] S430, the network device sends second downlink control information to the terminal device.

[0231] The network device instructs the terminal device to monitor the second downlink control information through the third indication information, and sends the second downlink control information on the corresponding SS configuration, so that the terminal device receives the second downlink control information.

[0232] The second downlink control information includes monitoring indication information of the first downlink control information and SS configuration of the first downlink control information associated with the second downlink control information.

[0233] For the rest of the description, please refer to step S230.

[0234] S440: The terminal device monitors the first downlink control information based on the second downlink control information.

[0235] The terminal device monitors the second downlink control information according to the monitoring indication information of the first downlink control information in the second downlink control information and the SS configuration of the first downlink control information associated with the second downlink control information.

[0236] S450, the network device sends first downlink control information to the terminal device.

[0237] For the rest of the description, please refer to step S230.

[0238] S460: The network device sends a public message and a private message to the terminal device.

[0239] Refer to step S240.

[0240] S470, the terminal device receives and determines the public message and the private message according to the first downlink control information and the second downlink control information.

[0241] Refer to step S250.

[0242] S480, the network device sends fourth indication information to the terminal device, instructing the terminal device to stop monitoring the first downlink control information and / or the second downlink control information.

[0243] Refer to step S260.

[0244] The communication method embodiment of the present application is described in detail above in conjunction with Figures 1 to 4 . The communication device embodiment of the present application will be described in detail below in conjunction with Figures 5 to 6 . It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, for portions not described in detail, reference can be made to the above method embodiment.

[0245] FIG5 is a schematic diagram of a communication device provided in accordance with an embodiment of the present application. As shown in FIG5 , a communication device 1200 includes a processing module 1210 and a communication module 1220. The communication device 1200 may be a terminal device, or a communication device applied to a terminal device or used in conjunction with a terminal device and capable of implementing a method executed by the terminal device, such as a chip, a chip system, or a circuit; or the communication device 1200 may be a network device, or a communication device applied to a network device or used in conjunction with a network device and capable of implementing a method executed by the network device, such as a chip, a chip system, or a circuit;

[0246] The communication module may also be referred to as a transceiver module, transceiver, transceiver, or transceiver device. The processing module may also be referred to as a processor, processing board, processing unit, or processing device. Optionally, the communication module is used to perform the sending and receiving operations of the terminal device and network device in the above method. The device used to implement the receiving function in the communication module can be considered a receiving unit, and the device used to implement the sending function in the communication module can be considered a sending unit. That is, the communication module includes a receiving unit and a sending unit.

[0247] When the communication device 1200 is applied to a terminal device, the processing module 1210 may be used to implement the processing functions of the terminal device in the above embodiments, and the communication module 1220 may be used to implement the transceiver functions of the terminal device in the above embodiments.

[0248] When the communication device 1200 is applied to a network device, the processing module 1210 can be used to implement the processing function of the network device in the above embodiments, and the communication module 1220 can be used to implement the transceiver function of the terminal device in the above embodiments.

[0249] In addition, it should be noted that the aforementioned communication module and / or processing module can be implemented by a virtual module, for example, the processing module can be implemented by a software functional unit or a virtual device, and the communication module can be implemented by a software function or a virtual device. Alternatively, the processing module or the communication module can also be implemented by a physical device, for example, if the device is implemented using a chip / circuit (such as an integrated circuit or a logic circuit, etc.). The communication module can be an input and output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing module is an integrated processor or microprocessor or circuit (such as an integrated circuit or a logic circuit, etc.).

[0250] The division of modules in this application is illustrative and represents only a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional modules in the examples of this application may be integrated into a single processor, exist physically as separate modules, or two or more modules may be integrated into a single module. The aforementioned integrated modules may be implemented in either hardware or software functional modules.

[0251] FIG6 is a schematic diagram of another communication device provided in an embodiment of the present application. As shown in FIG6 , the communication device 1300 may optionally be a chip or a chip system. Optionally, in the present application, the chip system may be composed of a chip or may include a chip and other discrete devices.

[0252] The communication device 1300 can be used to implement the functions of any device (e.g., terminal device, network device) in the communication system described in the above examples. The communication device 1300 may include at least one processor 1310. Optionally, the processor 1310 is coupled to a memory, and the memory may be located within the device, or the memory may be integrated with the processor, or the memory may be located outside the device. For example, the communication device 1300 may also include at least one memory 1320. The memory 1320 stores the necessary computer programs, computer programs or instructions and / or data for implementing any of the above examples; the processor 1310 may execute the computer program stored in the memory 1320 to complete the method in any of the above examples.

[0253] The communication device 1300 may also include a communication interface 1330, through which the communication device 1300 can exchange information with other devices. Exemplarily, the communication interface 1330 may be a transceiver, circuit, bus, module, pin, or other type of communication interface. When the communication device 1300 is a chip-type device or circuit, the communication interface 1330 in the device 1300 may also be an input / output circuit that can input information (or receive information) and output information (or send information). The processor 1310 is an integrated processor, microprocessor, integrated circuit, or logic circuit, etc. The processor can determine output information based on input information.

[0254] Coupling in this application refers to an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, and is used for information exchange between devices, units, or modules. Processor 1310 may operate in conjunction with memory 1320 and communication interface 1330. This application does not limit the specific connection medium between the processor 1310, memory 1320, and communication interface 1330.

[0255] Optionally, as shown in FIG6 , the processor 1310, the memory 1320, and the communication interface 1330 are interconnected via a bus 1340. Optionally, the bus may include an address bus, a data bus, a control bus, or other types of buses. Furthermore, for ease of illustration, FIG6 shows one bus 1340, but this does not mean that there is only one bus or only one type of bus.

[0256] It should be understood that the processors mentioned in the embodiments of the present application may be the following devices or the circuit portions of the following devices used for processing functions: a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0257] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory and / or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0258] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

[0259] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0260] An embodiment of the present application also provides a computer-readable storage medium on which computer instructions for implementing the methods executed by terminal devices and network devices in the above-mentioned method embodiments are stored.

[0261] An embodiment of the present application also provides a computer program product, comprising instructions, which, when executed by a computer, implement the methods performed by the terminal device and the network device in the above-mentioned method embodiments.

[0262] An embodiment of the present application also provides a communication system, which includes the terminal device and network device in the above embodiments.

[0263] The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above and will not be described again here.

[0264] To facilitate understanding of the above embodiments provided in this application, the following points are explained:

[0265] 1) In this application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0266] 2) In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c. Where a, b and c can be single or multiple, respectively.

[0267] 3) The ordinal numbers "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the size, content, order, timing, priority, or importance of the multiple objects. For example, the first indication information and the second indication information can be the same information or different information, and such names do not indicate differences in the content, size, application scenario, sender / receiver, priority, or importance of the two messages. In addition, the numbering of the steps in the various embodiments introduced in this application is only for distinguishing different steps and is not used to limit the order of the steps.

[0268] 4) In this application, descriptions such as "when...", "in the case of...", and "if" all mean that the device will perform corresponding processing under certain objective circumstances. They do not limit the time, nor do they require the device to perform judgment actions when implementing them, nor do they mean that there are other limitations.

[0269] 5) In this application, "indicate" or "used to indicate" can include being used for direct indication and being used for indirect indication. When describing that a certain indication information is used to indicate A, it can include that the indication information directly indicates A or indirectly indicates A, and does not necessarily mean that the indication information carries A.

[0270] The indication methods involved in the embodiments of this application should be understood to encompass various methods that enable the party to be indicated to obtain information about the information to be indicated. The information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately. The transmission period and / or timing of these sub-information can be the same or different. This application does not limit the transmission method, for example.

[0271] In the embodiments of the present application, the "indication information" may be an explicit indication, i.e., a direct indication via signaling, or may be obtained based on parameters indicated by the signaling, in combination with other rules, other parameters, or by deduction. It may also be an implicit indication, i.e., based on a rule or relationship, or based on other parameters, or by deduction. This application does not impose specific limitations on this.

[0272] 6) The “protocol” referred to in this application may refer to a standard protocol in the field of communications, such as the fourth generation (4G) th generation, 4G) network, fifth generation (5 th generation, 5G) network protocol, NR protocol, 5.5G network protocol, sixth generation (6 th generation, 6G) network protocols and related protocols used in future communication systems, which are not limited in this application.

[0273] 7) In this application, "communication" may also be described as "data transmission", "information transmission", "data processing", etc. "Transmission" includes "sending" and "receiving".

[0274] 8) In this application, "sending information to XX (device)" can be understood as the destination of the information being the device. This can include sending information directly or indirectly to the device. "Receiving information from XX (device)" can be understood as the source of the information being the device, which can include receiving information directly or indirectly from the device. The information may undergo necessary processing between the source and destination, such as format changes, but the destination can still understand the valid information from the source.

[0275] 9) The terms "comprise," "include," and "have," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0276] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0277] In this application, under the premise of no logical contradiction, the examples can reference each other, for example, the methods and / or terms between method embodiments can reference each other, for example, the functions and / or terms between device embodiments can reference each other, for example, the functions and / or terms between device examples and method examples can reference each other.

[0278] It should be understood that in some of the above embodiments, the devices in the existing network architecture are mainly used as examples for illustrative description, and the specific form of the devices is not limited in the embodiments of the present application. For example, devices that can achieve the same functions in the future are applicable to the embodiments of the present application.

[0279] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0280] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be described again here.

[0281] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0282] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0283] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0284] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0285] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: include: receiving first downlink control information and second downlink control information, wherein the first downlink control information includes content allocation information, and the content allocation information is used to indicate content allocation of a common message; Receiving a physical downlink shared channel PDSCH based on the first downlink control information, where the PDSCH includes the public message and the private message; determining the common message based on the content allocation information; The private message is determined based on the second downlink control information.

2. The method according to claim 1, characterized in that The receiving a PDSCH based on the first downlink control information includes: A PDSCH is received on a first time domain resource, where the first time domain resource is a time domain resource indicated by the first downlink control information.

3. The method according to claim 1 or 2, characterized in that: Applied to a terminal device, the content allocation information includes a mapping relationship between the common message in the PDSCH and the terminal device.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: First indication information is received, where the first indication information is used to instruct monitoring of the first downlink control information and the second downlink control information.

5. The method according to claim 4, characterized in that The first indication information includes at least one of the following information: Rate split RS transmission mode indication information, monitoring indication information of first downlink control information, search space configuration of the first downlink control information, monitoring indication information of second downlink control information, search space configuration of the second downlink control information, or an association relationship between the first downlink control information and the second downlink control information.

6. The method according to claim 4 or 5, characterized in that: The method further comprises: The first downlink control information and the second downlink control information are monitored based on the first indication information.

7. The method according to any one of claims 1 to 3, characterized in that The method further comprises: Second indication information is received, where the second indication information is used to instruct monitoring of the first downlink control information.

8. The method according to claim 7, characterized in that The second indication information includes at least one of the following information: monitoring indication information of the first downlink control information, The search space configuration of the first downlink control information and the search space configuration of the second downlink control information associated with the first downlink control information.

9. The method according to claim 7 or 8, characterized in that: The method further comprises: The first downlink control information is monitored based on the second indication information.

10. The method according to claim 9, characterized in that The first downlink control information includes monitoring indication information of second downlink control information and search space configuration of the second downlink control information associated with the first downlink control information.

11. The method according to claim 9 or 10, characterized in that: The method further comprises: The second downlink control information is monitored based on the first downlink control information.

12. A communication method, characterized in that: include: Sending first downlink control information and second downlink control information, wherein the first downlink control information includes content allocation information, the content allocation information is used to indicate content allocation of a public message, the first downlink control information is used to receive the public message and the private message and determine the public message, and the second downlink control information is used to determine the private message; A physical downlink shared channel PDSCH is sent, where the PDSCH includes the public message and the private message.

13. The method according to claim 12, characterized in that The sending of a physical downlink shared channel PDSCH comprises: The PDSCH is sent on a first time domain resource, where the first time domain resource is a time domain resource indicated by the first downlink control information.

14. The method according to claim 12 or 13, characterized in that The content allocation information includes a mapping relationship between the common message in the PDSCH and the terminal device.

15. The method according to any one of claims 12 to 14, characterized in that The method further comprises: Send first indication information, where the first indication information is used to instruct the terminal device to monitor the first downlink control information and the second downlink control information.

16. The method according to claim 15, characterized in that The first indication information includes at least one of the following information: Rate split RS transmission mode indication information, monitoring indication information of first downlink control information, search space configuration of the first downlink control information, monitoring indication information of second downlink control information, search space configuration of the second downlink control information, or an association relationship between the first downlink control information and the second downlink control information.

17. The method according to any one of claims 12 to 14, characterized in that The method further comprises: Send second indication information, where the second indication information is used to instruct the terminal device to monitor the first downlink control information.

18. The method according to claim 17, characterized in that The second indication information includes at least one of the following information: Monitoring indication information of first downlink control information, search space configuration of the first downlink control information, and search space configuration of the second downlink control information associated with the first downlink control information.

19. The method according to claim 17 or 18, characterized in that The first downlink control information includes monitoring indication information of second downlink control information and search space configuration of the second downlink control information associated with the first downlink control information.

20. A communication device, characterized in that: include: A unit for implementing the method of any one of claims 1 to 11; or a unit for implementing the method of any one of claims 12 to 19.

21. A computer-readable storage medium, characterized in that: The computer readable storage medium stores a computer program or instruction. When the computer program or instruction is executed, Execute the method according to any one of claims 1 to 11, or Execute the method as claimed in any one of claims 12 to 19.

22. A communication system, characterized in that: The method comprises a terminal device and a network device, wherein the terminal device is used to execute the method according to any one of claims 1 to 11, and the network device is used to execute the method according to any one of claims 12 to 19.

23. A computer program product, characterized in that The method comprises a computer program or an instruction, and when the computer program or the instruction is executed, the method according to any one of claims 1 to 11 or the method according to any one of claims 12 to 19 is executed.

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