Communication method and communication device

Abstract

Provided are a wireless communication method and a wireless communication device, the method comprising: receiving first downlink control information and second downlink control information, the first downlink control information comprising content distribution information, the content distribution information being used for indicating content distribution of a common message; receiving a physical downlink shared channel (PDSCH) based on the first downlink control information, wherein the PDSCH comprises the public message and a private message; determining the public message based on the content distribution information; and determining the private message based on the second downlink control information.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular, to a wireless communication method and a wireless communication device. Background Art

[0002] When a base station uses the same time-frequency resources to separately send data to multiple user equipments (UEs) through spatial division multiplexing, interference between multiple users can be eliminated through precoding.

[0003] In precoding technology, the base station sends channel status information (CSI) reference signals for the UE to perform downlink channel measurement, and the UE performs CSI feedback according to the measurement results, and the base station then calculates the downlink precoding weight according to the feedback CSI.

[0004] However, when the base station calculates the precoding weight, the granularity in the frequency domain and / or time domain is restricted by the system complexity, and affected by the CSI feedback accuracy and feedback frequency limitation, the precoding cannot well eliminate the interference between users, resulting in the system being interference-limited in the high signal-to-noise ratio range.

[0005] How to transfer more data from the base station to the UE and improve the throughput performance of the system under the condition that the system is interference-limited is an urgent problem to be solved. Summary of the Invention

[0006] This application provides a communication method and a communication device for improving the throughput performance of the system.

[0007] In a first aspect, a communication method is provided. This method can be executed by a terminal device, or can also be executed by a module (such as a chip or a circuit) of the terminal device, and this is not limited. For the sake of description, the following takes the execution by the terminal device as an example for illustration.

[0008] The method may include: receiving first downlink control information and second downlink control information, where the first downlink control information includes content allocation information, and the content allocation information is used to indicate the content allocation of a common message; receiving a physical downlink shared channel PDSCH based on the first downlink control information, where the PDSCH includes a common message and a private message; determining the common message based on the content allocation information; and determining the private message based on the second downlink control information.

[0009] It should be noted that the terminal device determines the common message, which means that the terminal device determines the part of the information in the common message that is sent to itself.

[0010] In addition, the terminal device receiving a 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 determining a private message means that the terminal device determines the private message sent to itself among the one or more private messages.

[0011] Through the above solution, part of the data sent by the network device to the terminal device is placed in the common 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 common message from the information obtained from the PDSCH, and the remaining is the private message. Thus, the common message will not cause additional interference to the private message, and more data can be transmitted from the network device to the terminal device when the system is interference-limited, improving the throughput performance of the system.

[0012] In combination with the first aspect, in some implementation manners of the first aspect, receiving the PDSCH based on the first downlink control information includes: receiving the PDSCH in a first time-domain resource, where the first time-domain resource is the time-domain resource indicated by the first downlink control information.

[0013] Through the above solution, the first downlink control information indicates the resources for receiving the common message and the private message, so that there is no need to separately indicate the resources for receiving the private message in the second downlink control information, saving communication resources.

[0014] In combination with the first aspect, in some implementation manners of the first aspect, the content allocation information includes the mapping relationship between the common message in the PDSCH and the terminal device.

[0015] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: receiving a first indication information, where the first indication information is used to indicate listening for the first downlink control information and the second downlink control information.

[0016] Through the above solution, the network device indicates the terminal device to listen for the first downlink control information and the second downlink control information, so that the network device can determine the way to transmit data to the terminal device according to the system throughput requirement, improving the system throughput performance.

[0017] In combination with the first aspect, in some implementation manners of the first aspect, the first indication information includes at least one of the following information: rate splitting RS transmission mode indication information, listening indication information of the first downlink control information, search space configuration of the first downlink control information, listening indication information of the second downlink control information, search space configuration of the second downlink control information, or the association relationship between the first downlink control information and the second downlink control information.

[0018] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: listening for first downlink control information and second downlink control information based on first indication information.

[0019] In a possible implementation manner, listening for first downlink control information and second downlink control information based on first indication information includes: listening for first downlink control information and second downlink control information by using the search space configuration of current first downlink control information and second downlink control information based on RS transmission mode indication information.

[0020] In a possible implementation manner, listening for first downlink control information and second downlink control information based on first indication information includes: listening for first downlink control information by using the search space configuration of current first downlink control information based on the listening indication information of the first downlink control information.

[0021] In a possible implementation manner, listening for first downlink control information and second downlink control information based on first indication information includes: listening for first downlink control information based on the search space configuration of the first downlink control information.

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

[0023] In a possible implementation manner, listening for first downlink control information and second downlink control information based on first indication information includes: listening for second downlink control information based on the search space configuration of the second downlink control information.

[0024] In a possible implementation manner, listening for first downlink control information and second downlink control information based on first indication information includes: listening for first downlink control information and second downlink control information by using the search space configuration of current first downlink control information and second downlink control information based on the association relationship between the first downlink control information and the second downlink control information.

[0025] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: receiving second indication information, where the second indication information is used to indicate listening for first downlink control information.

[0026] In combination with the first aspect, in some implementation manners of the first aspect, the second indication information includes at least one of the following information: the listening 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.

[0027] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: listening for first downlink control information based on second indication information.

[0028] In combination with the first aspect, in some implementation manners of the first aspect, the first downlink control information includes a listening indication information of second downlink control information, and a search space configuration of the second downlink control information associated with the first downlink control information.

[0029] Through the above solution, the second downlink control information is indicated to listen for, so that the network device can switch the data transmission mode to the terminal device according to the system throughput requirement, reducing the handover delay.

[0030] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: listening for second downlink control information based on the first downlink control information.

[0031] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: receiving third indication information for indicating to listen for second downlink control information.

[0032] In combination with the first aspect, in some implementation manners of the first aspect, the third indication information includes at least one of the following information: a listening indication information of second downlink control information, a search space configuration of second downlink control information, and a search space configuration of the first downlink control information associated with the second downlink control information.

[0033] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: listening for second downlink control information based on the third indication information.

[0034] In combination with the first aspect, in some implementation manners of the first aspect, the second downlink control information includes a listening 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.

[0035] Through the above solution, the first downlink control information is indicated to listen for, so that the network device can switch the data transmission mode to the terminal device according to the system throughput requirement, reducing the handover delay.

[0036] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: listening for first downlink control information based on the second downlink control information.

[0037] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: receiving fourth indication information for instructing the terminal device to stop listening for the first downlink control information and / or the second downlink control information.

[0038] In combination with the first aspect, in some implementation manners 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 listening indication information of the first downlink control information, or stop listening indication information of the second downlink control information.

[0039] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: stopping listening to the first downlink control information and / or the second downlink control information based on the fourth indication information.

[0040] In a second aspect, a communication method is provided. This method can be executed by a network device, or alternatively, can be executed by a module (such as a chip or a circuit) of the network device, and there is no limitation in this regard. For the sake of description, the following takes the execution by the network device as an example for illustration.

[0041] The method may include: sending the first downlink control information and the second downlink control information. The first downlink control information includes content allocation information, and the content allocation information is used to indicate the content allocation of the common message. The first downlink control information is used to receive the common message and the private message and determine the common message, and the second downlink control information is used to determine the private message; sending a physical downlink shared channel PDSCH, and the PDSCH includes the common message and the private message.

[0042] In combination with the second aspect, in some implementation manners of the second aspect, sending the physical downlink shared channel PDSCH includes: sending the PDSCH on a first time-domain resource, and the first time-domain resource is the time-domain resource indicated by the first downlink control information.

[0043] In combination with the second aspect, in some implementation manners of the second aspect, the content allocation information includes the mapping relationship between the common message in the PDSCH and the terminal device.

[0044] In combination with the second aspect, in some implementation manners of the second aspect, the method further includes: sending first indication information, and the first indication information is used to indicate the terminal device to listen to the first downlink control information and the second downlink control information.

[0045] In combination with the second aspect, in some implementation manners of the second aspect, the first indication information includes at least one of the following information: rate splitting RS transmission mode indication information, listening indication information of the first downlink control information, search space configuration of the first downlink control information, listening indication information of the second downlink control information, search space configuration of the second downlink control information, or the association relationship between the first downlink control information and the second downlink control information.

[0046] In combination with the second aspect, in some implementation manners of the second aspect, the method further includes: sending second indication information, and the second indication information is used to indicate the terminal device to listen to the first downlink control information.

[0047] In combination with the second aspect, in some implementation manners of the second aspect, the second indication information includes at least one of the following information: the 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.

[0048] In combination with the second aspect, in some implementation manners of the second aspect, the first downlink control information includes the monitoring indication information of the second 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 implementation manners 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.

[0050] In combination with the second aspect, in some implementation manners of the second aspect, the third indication information includes at least one of the following information: the 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.

[0051] In combination with the second aspect, in some implementation manners of the second aspect, the first downlink control information includes the monitoring indication information of the second 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 implementation manners 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.

[0053] In combination with the second aspect, in some implementation manners of the second aspect, the fourth indication information includes at least one of the following information: the rate splitting RS transmission mode exit indication information, the stop monitoring indication information of the first downlink control information, or the stop monitoring indication information of the second downlink control information.

[0054] In a third aspect, a communication device is provided, and the device may be a terminal device or a module of the terminal device (such as a chip or a circuit).

[0055] The apparatus includes: a receiving unit, configured to receive first downlink control information and second downlink control information, where the first downlink control information includes content distribution information for indicating the content distribution of a common message; and a processing unit, configured to control the apparatus to receive a physical downlink shared channel (PDSCH) based on the first downlink control information, where the PDSCH includes a common message and a private message; the processing unit is further configured to determine the common message based on the content distribution information, and determine the private message based on the second downlink control information.

[0056] In a possible implementation, receiving the PDSCH based on the first downlink control information includes: receiving the PDSCH in a first time-domain resource, where the first time-domain resource is the time-domain resource indicated by the first downlink control information.

[0057] In a possible implementation, the content distribution information includes the mapping relationship between the common message in the PDSCH and the terminal device.

[0058] In a possible implementation, the receiving unit is further configured to receive first indication information for indicating to monitor the first downlink control information and the second downlink control information.

[0059] In a possible implementation, the first indication information includes at least one of the following: 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 the association relationship between the first downlink control information and the second downlink control information.

[0060] In a possible implementation, 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.

[0061] In a possible implementation, the receiving unit is further configured to receive second indication information for indicating to monitor the first downlink control information.

[0062] In a possible implementation, the second indication information includes at least one of the following: 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.

[0063] In a possible implementation, the processing unit is further configured to control the apparatus to monitor the first downlink control information based on the second indication information.

[0064] In a possible implementation, the first downlink control information includes the monitoring indication information of the second downlink control information and the search space configuration of the second downlink control information associated with the first downlink control information.

[0065] In a possible implementation, the processing unit is further configured to control the device to monitor the second downlink control information based on the first downlink control information.

[0066] In a possible implementation, the receiving unit is further configured to receive third indication information, where the third indication information is used to indicate monitoring of the second downlink control information.

[0067] In a possible implementation, the third indication information includes at least one of the following information: the 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.

[0068] In a possible implementation, the processing unit is further configured to control the device to monitor the second downlink control information based on the third indication information.

[0069] In a possible implementation, the second downlink control information includes the monitoring indication information of the first downlink control information and the search space configuration of the first downlink control information associated with the second downlink control information.

[0070] In a possible implementation, the processing unit is further configured to control the device to monitor the first downlink control information based on the second downlink control information.

[0071] In a possible implementation, the receiving unit is further configured to receive fourth indication information, where the fourth indication information is used to indicate that the terminal device stops monitoring the first downlink control information and / or the second downlink control information.

[0072] In a possible implementation, the fourth indication information includes at least one of the following information: the rate splitting RS transmission mode exit indication information, the stop monitoring indication information of the first downlink control information, or the stop monitoring indication information of the second downlink control information.

[0073] In a possible implementation, the processing unit is further configured to control the device to stop monitoring the first downlink control information and / or the second downlink control information based on the fourth indication information.

[0074] In a fourth aspect, a communication device is provided. The device may be a network device or a module of a network device (such as a chip or a circuit).

[0075] The device includes: a transmitting unit, configured to transmit first downlink control information and second downlink control information. The first downlink control information includes content allocation information, which is used to indicate the content allocation of a common message. The content allocation information is used to indicate the content allocation of the common message. The first downlink control information is used to receive the common message and the private message and determine the common message. The second downlink control information is used to determine the private message. The transmitting unit is further configured to transmit a physical downlink shared channel PDSCH, which includes the common message and the private message.

[0076] In a possible implementation, transmitting the physical downlink shared channel PDSCH includes: transmitting the PDSCH on a first time-domain resource, where the first time-domain resource is the time-domain resource indicated by the first downlink control information.

[0077] In a possible implementation, the content allocation information includes the mapping relationship between the common message in the PDSCH and the terminal device.

[0078] In a possible implementation, the transmitting unit is further configured to transmit first indication information, which is used to indicate that the terminal device monitors the first downlink control information and the second downlink control information.

[0079] In a 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 the association relationship between the first downlink control information and the second downlink control information.

[0080] In a possible implementation, the transmitting unit is further configured to transmit second indication information, which is used to indicate that the terminal device monitors the first downlink control information.

[0081] In a possible implementation, 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.

[0082] In a possible implementation, the first downlink control information includes monitoring indication information of the second 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, the transmitting unit is further configured to transmit third indication information, which is used to indicate that the terminal device monitors the second downlink control information.

[0084] In a possible implementation, the third indication information includes at least one of the following information: the 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.

[0085] In a possible implementation, the first downlink control information includes the monitoring indication information of the second downlink control information, and the search space configuration of the second downlink control information associated with the first downlink control information.

[0086] In a possible implementation, the sending unit is further configured 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.

[0087] In a possible implementation, the fourth indication information includes at least one of the following information: the rate splitting RS transmission mode exit indication information, the stop monitoring indication information of the first downlink control information, or the stop monitoring indication information of the second downlink control information.

[0088] In a fifth aspect, a communication device is provided, including a processor, the processor is coupled to a memory, and can be used to execute the method in any possible implementation of the first aspect. In a possible implementation, the memory is included in the communication device. In a possible implementation, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

[0089] In an implementation, the communication device is a terminal device. When the communication device is a terminal device, the communication interface can be a transceiver, or an input / output interface. In a possible implementation, the transceiver can be a transceiver circuit. In a possible implementation, the input / output interface can be an input / output circuit.

[0090] 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, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit, etc. on the chip or the chip system. The processor can also be embodied as a processing circuit or a logic circuit.

[0091] In a sixth aspect, a communication device is provided, including a processor, the processor is coupled to a memory, and can be used to execute the method in any possible implementation of the second aspect. In a possible implementation, the memory is included in the communication device. In a possible implementation, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

[0092] In one implementation, the communication device is a network device. When the communication device is a network device, the communication interface can be a transceiver, or an input / output interface. In a possible implementation, the transceiver can be a transceiver circuit. In a possible implementation, the input / output interface can be an input / output circuit.

[0093] 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, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit, etc. on the chip or the chip system. The processor can also be embodied as a processing circuit or a logic circuit.

[0094] In a seventh aspect, a communication device is provided, including: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit the signal through the output circuit, so that any one of the first aspect to the second aspect, and the method in any possible implementation manner of the above aspects is implemented.

[0095] In a specific implementation process, the above communication device can be a chip. The input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits, etc. The input signal received by the input circuit can be received and input by, for example but not limited to, a receiver. The signal output by the output circuit can be output to, for example but not limited to, a transmitter and transmitted by the transmitter. Moreover, the input circuit and the output circuit can be different circuits or the same circuit. In this case, the circuit is used as an input circuit and an output circuit at different times respectively. The embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.

[0096] In an eighth aspect, a processing device is provided, including a processor and a memory. The processor is configured to read instructions stored in the memory, and can receive a signal through a receiver and transmit a signal through a transmitter, so as to execute any one of the first aspect to the second aspect, and the method in any possible implementation manner of the above aspects.

[0097] In a possible implementation, the processor is one or more, and the memory is one or more.

[0098] In a possible implementation, the memory can be integrated with the processor, or the memory is separately provided from the processor.

[0099] In a 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 separately provided on different chips. The embodiments of the present application do not limit the type of the memory and the setting manner of the memory and the processor.

[0100] It should be understood that related data interaction processes such as sending indication information can be a process of outputting indication information from the processor, and receiving capability information can be a process of the processor receiving input capability information. Specifically, the data processed and output can be output to a transmitter, and the input data received by the processor can come from a receiver. Among them, the transmitter and the receiver can be collectively referred to as a transceiver.

[0101] The processor in the above aspect can be a chip, and the processor can be implemented by hardware or by 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 software code stored in the memory. The memory can be integrated in the processor or can be located outside the processor and exist independently.

[0102] In a ninth aspect, a computer program product is provided. The computer program product includes: a computer program (which can also be referred to as code or instruction). When the computer program is run, the computer is caused to execute any one of the first aspect to the second aspect, and the methods in any possible implementation manner of the above aspects.

[0103] In a tenth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program (which can also be referred to as code or instruction). When it runs on a computer, the computer is caused to execute any one of the first aspect to the second aspect, and the methods in any possible implementation manner of the above aspects.

[0104] In an eleventh aspect, a chip system is provided, including a memory and a processor. 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 aspect to the second aspect, and the methods in any possible implementation manner of the above aspects.

[0105] Among them, the chip system can include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

[0106] In a twelfth aspect, a communication system is provided, including at least one of the foregoing terminal devices and network devices. Description of the Drawings

[0107] Figure 1 It is a schematic diagram of an example of a communication system applicable to this application.

[0108] Figure 2 It is a schematic flowchart of a communication method provided by an embodiment of this application.

[0109] Figure 3 It is a schematic flowchart of a communication method provided by an embodiment of this application.

[0110] Figure 4 It is a schematic flowchart of a communication method provided by an embodiment of this application.

[0111] Figure 5 It is a schematic block diagram of a communication device provided by an embodiment of this application.

[0112] Figure 6 It is a schematic block diagram of a communication device provided by an embodiment of this application. Detailed Embodiments

[0113] Next, the technical solutions in this application will be described with reference to the drawings.

[0114] The technical solution of the embodiment 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), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5th generation (5G) system or New Radio (NR) and future communication systems, Vehicle-to-Everything (V2X), where V2X can 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), Long Term Evolution-Machine (LTE-M), Machine-to-Machine (M2M), etc.

[0115] Figure 1 is a schematic diagram of a communication system provided by an embodiment of the present application. As Figure 1 shown, the communication system 100 includes at least one network device, such as Figure 1 the network device 110 shown; the communication system 100 may further include at least one terminal device, such as Figure 1 the terminal device 120 and / or the terminal device 130 shown. The network device 110 and the terminal device 120 / 130 can communicate through a wireless link, and then exchange information. It can be understood that the network device and the terminal device can also be referred to as communication devices.

[0116] A network device is a network-side device with wireless transceiver capabilities. The network device can be a device in a radio access network (RAN) that provides wireless communication capabilities for terminal devices, referred to as a RAN device. For example, the network device can be a base station, an evolved NodeB (eNodeB), a next generation NodeB (gNB) in a 5G mobile communication system, a base station evolved by 3GPP in the future, 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 (RATs), the names of devices with base station functions may vary. For example, in the LTE system, it can be called an eNB or eNodeB, and in the 5G system or NR system, it can be called a gNB. The specific name of the base station is not limited in this application. The network device can include one or more co-located or non-co-located transmission reception points. Additionally, for example, the network device can include at least one of the following items: one or more central units (CUs), one or more distributed units (DUs), and one or more radio units (RUs). In different systems, the 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 can also be an open radio access network (O-RAN) architecture. In the ORAN system, the CU can also be called an O-CU (open CU), the DU can also be called an O-DU, the CU-CP can also be called an O-CU-CP, the CU-UP can also be called an O-CU-UP, and the RU can also be called an O-RU. Any of the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules. Exemplarily, the functions of the CU can 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 by different entities, namely the control plane CU entity (i.e., the CU-CP entity) and the user plane CU entity (i.e., the CU-UP entity). The CU-CP entity and the CU-UP entity can be coupled to 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 and implementing the functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. In this way, some functions of the radio 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 (e.g., a cloud platform). The network device may also include an active antenna unit (AAU for short). The AAU implements some physical layer processing functions, radio frequency processing, and related functions of active antennas. Since the information in the RRC layer will ultimately become the information in the PHY layer, or vice versa, 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 the CU node, the DU node, and the AAU node. In addition, the CU can be classified as a network device in the radio access network (RAN), or the CU can be classified as a network device in the core network (CN), which is not limited in this application. Another example is in vehicle to everything (V2X) technology, where the radio access network device can be a road side unit (RSU). Multiple radio access network devices in a communication system can be of the same type of base station or different types of base stations. The base station can communicate with the terminal device or communicate with the terminal device through a relay station. In the embodiments of this application, the device for implementing the functions of the network device can be the network device itself or a device capable of supporting the network device to implement such functions, such as a chip system or a combined device or component that can implement the functions of the radio access network device, and this device can be installed in the network device. In the embodiments of this application, the chip system can be composed of chips or can also include chips and other discrete devices.

[0117] A terminal device is a user-side device with wireless transceiver capabilities. It can be a fixed device, a mobile device, a handheld device (such as a mobile phone), a wearable device, a vehicle-mounted device, or a wireless device (such as a communication module, a modem, or a chip system, etc.) built into the above devices. The terminal device is used to connect people, things, machines, etc., and can be widely used in various scenarios, such as: cellular communication, device-to-device (D2D) communication, V2X communication, machine-to-machine / machine-type communications (M2M / MTC) communication, Internet of Things, virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, 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 smart transportation and smart city, or a communication device on a drone, etc. The terminal device is sometimes 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 can 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 items to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and thing-thing interconnection. In the embodiments of this application, IoT technology can achieve massive connections, deep coverage, and power saving for terminals through, for example, narrow band (NB) technology. In the embodiments of this application, the device for realizing the functions of the terminal device can be the terminal device itself, or a device that can support the terminal device to realize these functions, such as a chip system or a combined device or component that can realize the functions of the terminal device. This device can be installed in the terminal device.

[0118] The network device and the terminal device can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; and can also be deployed on airplanes, balloons, and satellites in the air. In the embodiments of this application, the scenarios where the network device and the terminal device are located are not limited.

[0119] Exemplarily, 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 embodiments of the present application, when the AF network element and the SMF network element are included in the communication system 100, the AF may send service-related information to the network device through the SMF.

[0120] To meet the growing wireless communication demands, more and more new spectrum resources have been introduced into wireless communication systems. High frequencies have the natural advantage of large bandwidths and are one of the effective methods to improve communication service capabilities. However, high frequencies suffer from more severe path losses compared to low frequencies. To overcome this drawback, base stations use Multiple-Input and Multiple-Output (MIMO) technology to concentrate the energy radiation in a specific direction through beamforming to improve the coverage performance. In addition, base stations perform spatial multiplexing through Multi-User MIMO (MU-MIMO) to improve the spectral efficiency and system throughput. For the interference between users, base stations achieve interference suppression between users through precoding.

[0121] In precoding technology, the base station sends Channel Status Information (CSI) reference signals for the UE to perform downlink channel measurements, and the UE performs CSI feedback based on the measurement results, while the base station calculates the downlink precoding weights according to the feedback CSI. However, when the base station calculates the precoding weights, the granularity in the frequency domain and / or time domain is restricted by the system complexity, and affected by the CSI feedback accuracy and feedback frequency limitations. When the system throughput increases, due to the increase in the information sent by the base station to the UE, precoding cannot well eliminate the interference between users, resulting in the system being interference-limited in the high signal-to-noise ratio range.

[0122] How to transfer more data from the base station to the UE and improve the throughput performance of the system under the condition that the system is interference-limited is an urgent problem to be solved.

[0123] The present application provides various communication methods, which can improve the throughput performance of the system under the condition that the system is interference-limited.

[0124] It should be understood that the description of the specific scenarios in the embodiments of the present application is only for illustration. The methods provided in the embodiments of the present application are not only applicable to the application scenarios described above, but also applicable to application scenarios with similar problems.

[0125] The following describes in detail various communication methods provided by embodiments of the present application with reference to the accompanying drawings.

[0126] It should be understood that the step numbers in the embodiments of the present application are only for illustration and do not limit the order of occurrence of the steps.

[0127] For ease of understanding and explanation, the following describes the communication method of the embodiments of the present application by taking the interaction between a terminal device and a network device as an example, but this should not impose any limitation on the execution entity of the communication method of the embodiments of the present application. For example, the method executed by the terminal device can also be executed by a module of the terminal device (such as a circuit, a chip, or a chip system, etc.), and can also be implemented by a logical node, a logical module, or software that can implement all or part of the functions of the terminal device. The method executed by the network device can also be executed by a module of the network device (such as a circuit, a chip, or a chip system, etc.), and can also be implemented by a logical node, a logical module, or software that can implement all or part of the functions of the network device.

[0128] The message sent by the base station to each UE can be regarded as a private message of that UE. Each downlink control information corresponds to a private message sent to the UE, and the UE receives and decodes according to the downlink control information to determine the corresponding private message.

[0129] In the method provided by the present 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.

[0130] Figure 2 Fig. 200 shows a communication method 200 provided by the present application, and this method 200 at least includes the following partial methods. Figure 2 as shown.

[0131] S210, the network device sends first indication information to the terminal device.

[0132] 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.

[0133] Optionally, the first downlink control information can also be referred to as group-DCI, which is used to receive and determine the public message. The first downlink control information includes content allocation information, and the content allocation information is used to indicate the content allocation of the public message. Optionally, the first downlink control information is also used to receive the private message.

[0134] Optionally, the second downlink control information can also be referred to as dedicated-DCI, which is used to receive and / or determine the private message.

[0135] It should be noted that in this application, the terminal device determines the public message, which means that the terminal device determines the part of the information in the public message that is sent to itself.

[0136] In this application, the terminal device receives the private message, which 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 determines the private message, which means that the terminal device determines the private message sent to itself among the one or more private messages.

[0137] Optionally, the first indication information may be carried in a medium access control-control element (MAC-CE) or a Radio Resource Control (RRC) signaling.

[0138] Optionally, the first indication information includes at least one of the following information:

[0139] 1) Rate splitting (RS) transmission mode indication information, which is used to indicate that the terminal device enters the RS-MIMO mode. In this RS-MIMO mode, the terminal device executes the method described in this embodiment;

[0140] 2) Monitoring indication information of the first downlink control information, which is used to indicate that the terminal device monitors the first downlink control information;

[0141] 3) Search space (SS) configuration of the first downlink control information;

[0142] 4) Monitoring indication information of the second downlink control information, which is used to indicate that the terminal device monitors the second downlink control information;

[0143] 5) Search space configuration of the second downlink control information,

[0144] 6) Association relationship between the first downlink control information and the second downlink control information.

[0145] S220, the terminal device monitors the first downlink control information and the second downlink control information based on the first indication information.

[0146] After receiving the first indication information, the terminal device monitors the first downlink control information and the second downlink control information according to the indication of the first indication information.

[0147] Specifically, when the information included in the first indication information is different, the operations performed by the terminal device are also different. According to the different information included in the first indication information, the operations performed by the terminal device are as follows:

[0148] 1) The first indication information includes RS transmission mode indication information.

[0149] The terminal device listens for the first downlink control information and the second downlink control information according to the SS configurations of the default or current first downlink control information and the second downlink control information respectively.

[0150] 2) The first indication information includes the listening indication information of the first downlink control information.

[0151] The terminal device listens for the first downlink control information according to the SS configuration of the default or current first downlink control information.

[0152] 3) The first indication information includes the SS configuration of the first downlink control information.

[0153] The terminal device listens for the first downlink control information according to the search space configuration of the received first downlink control information.

[0154] 4) The first indication information includes the listening indication information of the second downlink control information.

[0155] The terminal device listens for the second downlink control information according to the SS configuration of the default or current first downlink control information.

[0156] 5) The first indication information includes the search space configuration of the second downlink control information.

[0157] The terminal device listens for the second downlink control information according to the SS configuration of the received second downlink control information.

[0158] 6) The first indication information includes the association relationship between the first downlink control information and the second downlink control information.

[0159] The terminal device updates the association relationship between the first downlink control information and the second downlink control information, and starts to listen for the first downlink control information and the second downlink control information according to the SS configurations of the default or current first downlink control information and the second downlink control information respectively.

[0160] S230, the network device sends the first downlink control information and the second downlink control information to the terminal device.

[0161] After the network device indicates the terminal device to listen for 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 configurations, the terminal device receives the first downlink control information and the second downlink control information.

[0162] In one implementation, the first downlink control information is used to receive and determine a common message, and the second downlink control information is used to receive and determine a 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 common message, and the second downlink control information indicates the second time domain resource and / or the second frequency domain resource for the terminal device to receive the private message.

[0163] In another implementation, the second downlink control information is used to receive and determine a common 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 common 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 has no frequency domain resource allocation (FDRA) and / or time domain resource allocation (TDRA) field, so 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.

[0164] S240, the network device sends a common message and a private message to the terminal device.

[0165] In one implementation, the first downlink control information is used to receive and determine a common 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 the common message to the terminal device through the first time domain resource and / or the first frequency domain resource, and sends a PDSCH including the private message to the terminal device through the second time domain resource and / or the second frequency domain resource.

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

[0167] S250, the terminal device receives and determines the common message and the private message according to the first downlink control information and the second downlink control information.

[0168] In one implementation, the first downlink control information is used to receive and determine a common message, and the second downlink control information is used to receive and determine a private message. In this case, the terminal device receives the PDSCH including the common message through the first time-domain resource and / or the first frequency-domain resource, and receives the PDSCH including the private message through the second time-domain resource and / or the second frequency-domain resource.

[0169] In another implementation, the second downlink control information is used to receive and determine a common message, and is also used to receive a private message. The second downlink control information is used to determine the private message. In this case, the terminal device receives the PDSCH including the common message and the private message through the first time-domain resource and / or the first frequency-domain resource.

[0170] After the terminal device receives the common message and the private message, it decodes the common message from the PDSCH through the first downlink control information. After removing the common message from the information included in the PDSCH, the remaining is the private message. Thus, the terminal device determines the common message based on the content allocation information, that is, determines the part of the information sent to itself in the common message, and determines the private message based on the second downlink control information.

[0171] Optionally, the content allocation information may be a mapping relationship between the UE index (index, ID) and the code block (CB) / code block group (CBG) ID. As shown in Table 1:

[0172] Table 1

[0173] UE ID ID of the allocated code block or code block group 1 1 2 2 3 3

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

[0175] The fourth indication information is used to instruct the terminal device to stop listening to 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 splitting RS transmission mode exit indication information, stop listening indication information for the first downlink control information, or stop listening indication information for the second downlink control information.

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

[0179] Specifically, when the information included in the fourth indication information is different, the operations performed by the terminal device are also different. According to the different information included in the fourth indication information, the operations performed by the terminal device are as follows:

[0180] 1) The fourth indication information includes the indication information for exiting the RS transmission mode.

[0181] The terminal device monitors the first downlink control information and stops monitoring the second downlink control information or continues to monitor the second downlink control information but assumes the restoration of the time-domain resource allocation field during blind detection.

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

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

[0184] 3) The fourth indication information includes the indication information for stopping monitoring 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 the restoration of the time-domain resource allocation field during blind detection.

[0186] Figure 3 Another communication method 300 provided by the present application is shown. The method 300 at least includes the partial method as Figure 3 shown.

[0187] S310, the network device sends the 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 can be carried in the MAC-CE or RRC signaling.

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

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

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

[0193] For the remaining descriptions, 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 indication of the second indication information.

[0196] Specifically, when the information included in the second indication information is different, the operations performed by the terminal device are also different. According to the different information included in the second indication information, the operations performed by the terminal device are as follows:

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

[0198] The terminal device monitors the first downlink control information according to the SS configuration of the default or current 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 the 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 the monitoring indication information of the second downlink control information and the SS configuration of the second downlink control information associated with the first downlink control information.

[0204] For the remaining descriptions, 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 the second downlink control information to the terminal device.

[0208] For the remaining descriptions, refer to step S230.

[0209] S360, the network device sends the common message and the private message to the terminal device.

[0210] Refer to step S240.

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

[0212] Refer to step S250.

[0213] In S380, the network device sends fourth indication information to the terminal device to indicate that the terminal device stops monitoring the first downlink control information and / or the second downlink control information.

[0214] Refer to step S260.

[0215] Figure 4 Another communication method 400 provided by the present application is shown. The method 400 at least includes the partial method as Figure 4 shown.

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

[0217] Specifically, the third indication information is used to indicate that the terminal device monitors the second downlink control information.

[0218] Optionally, the third indication information can 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 indication information of the second downlink control information, which is used to indicate that the terminal device monitors the second downlink control information;

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

[0222] For the remaining descriptions, refer to step S210.

[0223] In 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 indication of the third indication information.

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

[0226] 1) The third indication information includes the 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 the second downlink control information to the terminal device.

[0231] The network device indicates to 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 the monitoring indication information of the first downlink control information and the SS configuration of the first downlink control information associated with the second downlink control information.

[0233] For the remaining descriptions, 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 the first downlink control information to the terminal device.

[0237] For the remaining descriptions, refer to step S230.

[0238] S460, The network device sends the common message and the private message to the terminal device.

[0239] Refer to step S240.

[0240] S470, The terminal device receives and determines the common 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 the fourth indication information to the terminal device, indicating that the terminal device stops monitoring the first downlink control information and / or the second downlink control information.

[0243] Refer to step S260.

[0244] As described above in conjunction with Figures 1 to 4 The method embodiments of the present application have been described in detail above. Next, the apparatus embodiments of the present application will be described in conjunction with Figures 5 to 6 The apparatus embodiments will be described in detail. It should be understood that the descriptions of the apparatus embodiments correspond to those of the method embodiments. Therefore, for the parts not described in detail, reference may be made to the foregoing method embodiments.

[0245] Figure 5This is a schematic diagram of a communication device provided by an embodiment of the present application. As Figure 5 shown, the communication device 1200 includes a processing module 1210 and a communication module 1220. The communication device 1200 can be a terminal device, or a communication device that is applied to a terminal device or used in combination with a terminal device and can implement the methods executed by the terminal device, such as a chip, a chip system, or a circuit; or, the communication device 1200 can be a network device, or a communication device that is applied to a network device or used in combination with a network device and can implement the methods executed by the network device, such as a chip, a chip system, or a circuit;

[0246] Among them, the communication module can also be referred to as a transceiver module, a transceiver, a transceiver machine, or a transceiver device, etc. The processing module can also be referred to as a processor, a processing board, a processing unit, or a processing device, etc. Optionally, the communication module is used to perform the sending operation and receiving operation of the terminal device and the network device in the above method. The device in the communication module for implementing the receiving function can be regarded as a receiving unit, and the device in the communication module for implementing the sending function can be regarded as 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 can be used to implement the processing function of the terminal 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.

[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 foregoing 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. Or, the processing module or the communication module can also be implemented by a physical device. For example, if the device is implemented by a chip / circuit (such as an integrated circuit or a logic circuit, etc.). The communication module can be an input / output circuit and / or a communication interface, performing input operations (corresponding to the foregoing receiving operations) and output operations (corresponding to the foregoing sending operations); the processing module is an integrated processor or a microprocessor or a circuit (such as an integrated circuit or a logic circuit, etc.).

[0250] The division of modules in this application is illustrative and is only a logical function division. In actual implementation, there may be other division methods. In addition, in each example of this application, each functional module can be integrated in a processor, can exist physically alone, or two or more modules can be integrated in one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules.

[0251] Figure 6 It is a schematic diagram of another communication device provided by an embodiment of this application. As Figure 6 shown, optionally, the communication device 1300 can be a chip or a chip system. Optionally, in this application, a chip system can be composed of chips or can include chips and other discrete devices.

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

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

[0254] The coupling in this application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information interaction between devices, units or modules. The processor 1310 may cooperate with the memory 1320 and the communication interface 1330. In this application, the specific connection medium between the above-mentioned processor 1310, memory 1320 and communication interface 1330 is not limited.

[0255] Optionally, asFigure 6 As shown, the processor 1310, the memory 1320, and the communication interface 1330 are interconnected via a bus 1340. Optionally, the bus may include types of buses such as an address bus, a data bus, a control bus, etc. In addition, for ease of representation, Figure 6 one bus 1340 is shown in, but it does not mean that there is only one bus or one type of bus.

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

[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 ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, the RAM can be used as an external cache. By way of example and not limitation, the RAM includes the following various forms: static random access memory (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM).

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

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

[0260] The embodiments of the present application also provide a computer-readable storage medium, on which computer instructions for implementing the methods executed by the terminal device and the network device in the above method embodiments are stored.

[0261] The embodiments of the present application also provide a computer program product, including instructions that, when executed by a computer, implement the methods executed by the terminal device and the network device in the above method embodiments.

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

[0263] For the explanations of the relevant content and the beneficial effects in any of the above-provided devices, reference can be made to the corresponding method embodiments provided above, and details will not be elaborated herein.

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

[0265] 1) In this application, without special instructions and logical conflicts, the terms and / or descriptions between different embodiments are consistent and can be referenced mutually. 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 "a plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. In the written description of this application, the character " / " generally represents an "or" relationship between the associated objects before and after. "At least one (item)" or its similar expressions refer to any combination of these items, including any combination of single item (item) or multiple items (items). For example, at least one (item) of a, b, and c can represent: 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 such as "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, time sequence, priority, or importance degree, etc. of 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 degree, etc. of these two messages. In addition, the numbering of steps in each embodiment introduced in this application is only for distinguishing different steps and does not limit the sequence of steps.

[0268] 4) In this application, descriptions such as "when...", "in the case of...", and "if" all refer to the device making corresponding processing under a certain objective situation, which does not limit time, and it is not required that the device must have a judgment action during implementation, nor does it mean other limitations exist.

[0269] 5) In this application, "indicate" or "used to indicate" can include direct indication and 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 it does not mean that A must be carried in the indication information.

[0270] The indication method involved in the embodiments of this application should be understood to cover various methods that can enable the party to be indicated to obtain 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. Moreover, the sending periods and / or sending timings of these sub-informations can be the same or different. This application does not limit, for example, the sending method.

[0271] The "indication information" in the embodiments of this application can be explicit indication, that is, directly indicated by signaling, or obtained by combining other rules or other parameters or through derivation according to the parameters indicated by the signaling. It can also be implicit indication, that is, obtained according to rules or relationships, or according to other parameters, or through derivation. This application does not make specific limitations on this.

[0272] 6) The "protocol" involved in this application can refer to the standard protocols in the communication field. For example, it can include the fourth-generation (4 th generation, 4G) network, the fifth-generation (5 th generation, 5G) network protocol, NR protocol, 5.5G network protocol, the sixth-generation (6 th generation, 6G) network protocol, and the relevant protocols applied to future communication systems. This application does not make limitations on this.

[0273] 7) In this application, "communication" can 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 that the destination of this information is this device. It can include directly or indirectly sending information to this device. "Receiving information from XX (device), or receiving information from XX (device)" can be understood that the source of this information is this device. It can include directly or indirectly receiving information from this device. The information may be subjected to necessary processing, such as format change, etc., between the source and destination of the information sending, but the destination can understand the valid information from the source.

[0275] 9) The terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0276] In various embodiments of the present application, the sequence numbers of the above processes do not imply the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0277] In the present application, on the premise of no logical contradiction, the examples can refer to each other. For example, the methods and / or terms between method embodiments can refer to each other, for example, the functions and / or terms between device embodiments can refer to each other, for example, the functions and / or terms between device examples and method examples can refer to each other.

[0278] It should be understood that in some of the above embodiments, devices in the existing network architecture are mainly used as examples for illustrative purposes, and the specific forms of the devices are 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 of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0280] Those skilled in the art can 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 foregoing method embodiments, and will not be described herein again.

[0281] In several embodiments provided by the present 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 illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, 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 displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

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

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

[0284] If the above-mentioned function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a 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 causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0285] As described above, the above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that, comprising: receiving first downlink control information and second downlink control information, the first downlink control information including content allocation information for indicating content allocation of a common message; receiving a Physical Downlink Shared Channel (PDSCH) based on the first downlink control information, the PDSCH including the common message and a private message; determining the common message based on the content allocation information; determining the private message based on the second downlink control information.

2. The method according to claim 1, characterized in that, the receiving the PDSCH based on the first downlink control information includes: receiving the PDSCH on a first time-domain resource, the first time-domain resource being 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 including 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: receiving first indication information for indicating listening to 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 Splitting (RS) transmission mode indication information, listening indication information of the first downlink control information, search space configuration of the first downlink control information, listening 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.

6. The method according to claim 4 or 5, characterized in that, the method further comprises: listening to the first downlink control information and the second downlink control information 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: receiving second indication information for indicating listening to 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: listening 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.

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

10. The method according to claim 9, characterized in that, the first downlink control information includes listening indication information of the 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: listening to the second downlink control information based on the first downlink control information.

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

13. The method according to claim 12, characterized in that, the sending of the physical downlink shared channel PDSCH includes: sending the PDSCH on a first time-domain resource, and the first time-domain resource is the 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 the 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 includes: sending first indication information, and the first indication information is used to indicate that the terminal device monitors 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 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 the 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 includes: sending second indication information, and the second indication information is used to indicate that the terminal device monitors 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 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.

19. The method according to claim 17 or 18, characterized in that, the first downlink control information includes monitoring indication information of the 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, it includes: a unit for implementing the method according to any one of claims 1 to 11; or, a unit for implementing the method according to 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 instructions, and when the computer program or instructions are run, execute the method according to any one of claims 1 to 11, or Implement the method according to any one of claims 12 to 19.

22. A communication system, characterized in that it includes a terminal device and a network device, the first terminal device is used to implement the method according to any one of claims 1 to 11, and the network device is used to implement the method according to any one of claims 12 to 19.

Images