Communication method and communication device

Abstract

The embodiment of the present application discloses a communication method and a communication device, the method comprising: when the beams of a first signal and a second signal to be transmitted back-to-back are different, puncturing a portion of the first signal; and sending the first signal after puncturing. In the embodiment of the present application, when the beams of a first signal and a second signal to be transmitted back-to-back are different, puncturing a portion of the first signal (equivalent to extending the cyclic prefix of the first signal or the cyclic prefix of the second signal); this allows more time to implement beam switching; the impact of beam switching on communication quality can be reduced, and the impact of beam switching on communication quality can be reduced.

Description

Technical Field

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

[0002] In release 18, new subcarrier spacings of 480kHz and 960kHz will be introduced from 52.6GHz to 71GHz. The cyclic prefix (CP) of the new carrier is shorter, about 146ns for 480kHz and about 73ns for 960kHz.

[0003] The beam switching time currently under discussion may be up to 200ns, and the beam switching at this time cannot be completed within the CP time. Since the beam switching cannot be completed within the CP time, the beam switching is likely to affect the communication quality and even fail to guarantee the successful transmission of data. Therefore, it is necessary to study how to reduce the impact of beam switching on communication quality. Summary of the invention

[0004] The embodiments of the present application disclose a communication method and a communication device to reduce the impact of beam switching on communication quality.

[0005] In a first aspect, an embodiment of the present application provides a communication method, the method comprising: when a first signal and a second signal to be transmitted back-to-back have different beams, puncturing a portion of the first signal; and sending the punctured first signal.

[0006] In an embodiment of the present application, when the beams of the first signal and the second signal to be transmitted back-to-back are different, a portion of the first signal is punctured (equivalent to extending the cyclic prefix of the first signal or the cyclic prefix of the second signal); in this way, there is more time to implement beam switching; the impact of beam switching on communication quality can be reduced, and the impact of beam switching on communication quality can be reduced.

[0007] In a possible implementation, before puncturing a portion of the first signal, the method further includes: determining the first signal to be punctured according to a priority of the first signal and a priority of the second signal.

[0008] In this implementation, a signal more suitable for puncture may be determined according to the priority of the first signal and the priority of the second signal.

[0009] In a possible implementation manner, the priority of the first signal is higher or lower than that of the second signal.

[0010] In this implementation, the first signal with a higher or lower priority is punctured; which signal is punctured can be determined accurately and quickly.

[0011] In a possible implementation, before puncturing a portion of the first signal, the method further includes: determining the first signal to be punctured according to a priority of the first signal and a priority of the second signal, and a sending time of the first signal and a sending time of the second signal.

[0012] In this implementation, a more suitable signal for puncture may be determined according to the priority of the first signal and the priority of the second signal and the sending time of the first signal and the sending time of the second signal.

[0013] In a possible implementation, the priority of the first signal is the same as the priority of the second signal, the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal.

[0014] In this implementation, when the priority of the first signal and the priority of the second signal are the same, the first signal with an earlier or later puncture transmission time is used; the puncture signal can be accurately and quickly determined.

[0015] In a possible implementation, the first signal is sent after the second signal is sent; and puncturing a portion of the first signal includes: puncturing one or more first OFDM symbols of the first signal.

[0016] In this implementation, one or more first OFDM symbols of the first signal are punctured so that there is a longer time to complete beam switching.

[0017] In one possible implementation, the method is applied to a scenario in which multiple transmission reception points (TRPs) send signals to a terminal device through a physical downlink shared channel (PDSCH), and the first signal and the second signal are both signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; or, the method is applied to a scenario in which a single downlink control information (DCI) schedules multi-slot PDSCHs, and the first signal and the second signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; or, the method is applied to a sidelink transmission scenario, and the first signal and the second signal are carried on different physical sidelink feedback channels (PSFCHs).

[0018] In this implementation, a portion of the first signal is punctured so that there is more time to implement beam switching; the impact of beam switching on communication quality can be reduced.

[0019] In a possible implementation manner, puncturing a portion of the first signal includes: puncturing a portion of the first signal when a length of the first signal is greater than or equal to a length threshold.

[0020] In this implementation, when the length of the first signal is greater than or equal to the length threshold, a portion of the first signal is punctured, so as to ensure that sending the punctured first signal is better than discarding the first signal.

[0021] In a second aspect, an embodiment of the present application provides another communication method, which includes: when the beams of a first signal and a second signal to be transmitted back-to-back are different, discarding the first signal; the length of the first signal is less than a length threshold, and the length of the second signal is greater than or equal to the length threshold; and sending the second signal.

[0022] In an embodiment of the present application, when the beams of the first signal and the second signal to be transmitted back-to-back are different, the first signal whose length is less than the length threshold is discarded; this can avoid performing a beam switching operation.

[0023] In one possible implementation, the method is applied to a scenario in which multiple TRPs send signals to a terminal device via PDSCH, and both the first signal and the second signal are signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; or, the method is applied to a scenario in which a single DCI schedules multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; or, the method is applied to a sidelink transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

[0024] In this implementation, the first signal whose length is less than the length threshold is discarded; this can avoid performing a beam switching operation, thereby preventing the beam from being unable to complete switching in time.

[0025] In a third aspect, an embodiment of the present application provides another communication method, which includes: when the beams of a third signal and a fourth signal to be transmitted back-to-back are different, sending the third signal and delaying the sending of the fourth signal; the sending time of the third signal is before the sending time of the fourth signal.

[0026] In the embodiment of the present application, when the beams of the third signal and the fourth signal to be transmitted back-to-back are different, the third signal is sent and the fourth signal is sent with a delay. Delaying the sending of the fourth signal can give the network device more time to perform beam switching, which can reduce the impact of beam switching on communication quality.

[0027] In one possible implementation, the method is applied to a scenario in which multiple TRPs send signals to a terminal device via PDSCH, and the third signal and the fourth signal are both signals to be sent by the fourth TRP to the terminal device, or the third signal is a signal to be sent by the fifth TRP to the terminal device, and the fourth signal is a signal to be sent by the sixth TRP to the terminal device; or, the method is applied to a scenario in which a single DCI schedules multi-slot PDSCH, and the third signal and the fourth signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the third signal and the fourth signal are carried on different PDSCHs; or, the method is applied to a sidelink transmission scenario, and the third signal and the fourth signal are carried on different PSFCHs.

[0028] In this implementation, delaying the sending of the fourth signal can allow the network device more time to perform beam switching, thereby reducing the impact of beam switching on communication quality.

[0029] In a possible implementation manner, the delaying sending the fourth signal includes: sending the fourth signal after completing beam switching. Completing beam switching refers to switching the beam for sending the third signal to the beam for sending the fourth signal.

[0030] In this implementation, the fourth signal is sent after the beam switching is completed; the problem of sending the fourth signal without switching the beam can be avoided.

[0031] In a fourth aspect, an embodiment of the present application provides another communication method, the method comprising: receiving a first signal and a second signal with different beams back to back; puncturing a portion of the first signal; and decoding the first signal.

[0032] In an embodiment of the present application, when a first signal and a second signal with different beams are received back to back, a portion of the first signal is punctured; in this way, the terminal device has more time to implement beam switching; and the impact of beam switching on communication quality can be reduced.

[0033] In a possible implementation manner, the priority of the first signal is higher or lower than that of the second signal.

[0034] In this implementation, the first signal with a higher or lower priority is delayed in sending; and it can be accurately and quickly determined which signal to delay sending.

[0035] In a possible implementation, the priority of the first signal is the same as the priority of the second signal, the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal.

[0036] In this implementation, when the priority of the first signal and the priority of the second signal are the same, the first signal with an earlier or later puncture transmission time is used; the puncture signal can be accurately and quickly determined.

[0037] In a possible implementation, the first signal is sent after the second signal is sent; and the first one or more OFDM symbols of the first signal are punctured.

[0038] In this implementation, the first one or more OFDM symbols of the first signal are punctured so that there is a longer time to complete beam switching.

[0039] In one possible implementation, the method is applied to a scenario in which multiple TRPs send signals to a terminal device via PDSCH, and both the first signal and the second signal are signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; or, the method is applied to a scenario in which a single DCI schedules multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; or, the method is applied to a sidelink transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

[0040] In this implementation, a portion of the first signal is punctured so that there is more time to implement beam switching; the impact of beam switching on communication quality can be reduced.

[0041] In a fifth aspect, an embodiment of the present application provides another communication method, the method comprising: receiving a second signal sent by a network device; the second signal is a signal that is not discarded in two signals with different beams to be transmitted back-to-back by the network device; the length of the second signal is greater than or equal to a length threshold; decoding the second signal. A first signal to be transmitted back-to-back with the second signal by the network device is discarded (dropped), and the length of the first signal is less than the length threshold.

[0042] In the embodiment of the present application, the second signal that is not discarded is received from two signals with different beams to be transmitted back-to-back. The first signal to be transmitted back-to-back with the second signal by the network device is discarded, which can avoid the problem that the beam switching cannot be completed in time and reduce the execution of the beam switching operation.

[0043] In one possible implementation, the two signals with different beams to be transmitted back-to-back by the network device include a first signal and a second signal; the method is applied to a scenario in which multiple TRPs send signals to a terminal device via a PDSCH, and both the first signal and the second signal are signals to be sent to the terminal device by the first TRP, or the first signal is a signal to be sent to the terminal device by the second TRP, and the second signal is a signal to be sent to the terminal device by the third TRP; or the method is applied to a scenario in which a single DCI schedules multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; or the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; or the method is applied to a sidelink transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

[0044] In this implementation, the first signal whose length is less than the length threshold is discarded; this can avoid performing a beam switching operation, thereby preventing the beam from being unable to complete switching in time.

[0045] In a sixth aspect, an embodiment of the present application provides another communication method, the method comprising: receiving a third signal and a fourth signal with different beams back to back, the fourth signal being sent with a delay, and the sending time of the third signal being before the sending time of the fourth signal; decoding the third signal.

[0046] In the embodiment of the present application, the fourth signal is sent with a delay, that is, the reception of the fourth signal is delayed; this can ensure that when the fourth signal is received, the network device has completed the beam switching, thereby reducing the impact of the beam switching on the communication quality.

[0047] In one possible implementation, the method is applied to a scenario in which multiple TRPs send signals to a terminal device via PDSCH, and the third signal and the fourth signal are both signals to be sent by the fourth TRP to the terminal device, or the third signal is a signal to be sent by the fifth TRP to the terminal device, and the fourth signal is a signal to be sent by the sixth TRP to the terminal device; or, the method is applied to a scenario in which a single DCI schedules multi-slot PDSCH, and the third signal and the fourth signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the third signal and the fourth signal are carried on different PDSCHs; or, the method is applied to a sidelink transmission scenario, and the third signal and the fourth signal are carried on different PSFCHs.

[0048] In this implementation, delaying the sending of the fourth signal can give the network device more time to perform beam switching, thereby ensuring that the network device has completed the beam switching when the terminal device receives the fourth signal; and can reduce the impact of beam switching on communication quality.

[0049] In a possible implementation manner, the fourth signal is sent after the network device completes beam switching.

[0050] In the seventh aspect, an embodiment of the present application provides a communication device, including: a processing module, used to puncture a part of the first signal when the beams of the first signal and the second signal to be transmitted back-to-back are different; and a transceiver module, used to send the first signal after puncture.

[0051] In a possible implementation, the processing module is further used to determine the first signal to be punctured according to the priority of the first signal and the priority of the second signal, and the sending time of the first signal and the sending time of the second signal.

[0052] In a possible implementation manner, the priority of the first signal is higher or lower than that of the second signal.

[0053] In a possible implementation, the processing module is further used to determine the first signal to be punctured according to the priority of the first signal and the priority of the second signal, and the sending time of the first signal and the sending time of the second signal.

[0054] In a possible implementation, the priority of the first signal is the same as the priority of the second signal, the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal.

[0055] In a possible implementation, the sending time of the first signal is after the sending time of the second signal; the processing module is specifically configured to puncture the first one or more OFDM symbols of the first signal.

[0056] In one possible implementation, the method is applied to a scenario in which multiple transmission receiving points TRP send signals to a terminal device through a physical downlink shared channel PDSCH, and the first signal and the second signal are both signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; or, the method is applied to a scenario in which a single downlink control information DCI schedules multiple time slots PDSCH, and the first signal and the second signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; or, the method is applied to a side link transmission scenario, and the first signal and the second signal are carried on different physical side link feedback channels PSFCH.

[0057] In a possible implementation manner, the processing module is specifically configured to puncture a portion of the first signal when a length of the first signal is greater than or equal to a length threshold.

[0058] Regarding the technical effects brought about by the seventh aspect or various optional implementation methods, reference may be made to the introduction to the technical effects of the first aspect or the corresponding implementation methods.

[0059] In eighth aspect, an embodiment of the present application provides a communication device, including: a processing module, used to discard the first signal when the beams of the first signal and the second signal to be transmitted back-to-back are different; the length of the first signal is less than a length threshold, and the length of the second signal is greater than or equal to the length threshold; and a transceiver module, used to send the second signal.

[0060] In one possible implementation, the method is applied to a scenario in which multiple TRPs send signals to a terminal device via PDSCH, and both the first signal and the second signal are signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; or, the method is applied to a scenario in which a single DCI schedules multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; or, the method is applied to a sidelink transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

[0061] Regarding the technical effects brought about by the eighth aspect or various optional implementation methods, reference may be made to the introduction to the technical effects of the second aspect or corresponding implementation methods.

[0062] In the ninth aspect, an embodiment of the present application provides a communication device, including: a transceiver module, used to send the third signal and delay the sending of the fourth signal when the beams of the third signal and the fourth signal to be transmitted back-to-back are different; the sending time of the third signal is before the sending time of the fourth signal.

[0063] In one possible implementation, the method is applied to a scenario in which multiple TRPs send signals to a terminal device via PDSCH, and the third signal and the fourth signal are both signals to be sent by the fourth TRP to the terminal device, or the third signal is a signal to be sent by the fifth TRP to the terminal device, and the fourth signal is a signal to be sent by the sixth TRP to the terminal device; or, the method is applied to a scenario in which a single DCI schedules multi-slot PDSCH, and the third signal and the fourth signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the third signal and the fourth signal are carried on different PDSCHs; or, the method is applied to a sidelink transmission scenario, and the third signal and the fourth signal are carried on different PSFCHs.

[0064] Regarding the technical effects brought about by the ninth aspect or various optional implementation methods, reference may be made to the introduction to the technical effects of the third aspect or corresponding implementation methods.

[0065] In the tenth aspect, an embodiment of the present application provides a communication device, including: a transceiver module, used to receive a first signal and a second signal with different beams back to back; a portion of the first signal is punctured; and a processing module, used to decode the first signal.

[0066] In a possible implementation manner, the priority of the first signal is higher or lower than that of the second signal.

[0067] In a possible implementation, the priority of the first signal is the same as the priority of the second signal, the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal.

[0068] In a possible implementation, the first signal is sent after the second signal is sent; and the first one or more OFDM symbols of the first signal are punctured.

[0069] In one possible implementation, the method is applied to a scenario in which multiple TRPs send signals to a terminal device via PDSCH, and both the first signal and the second signal are signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; or, the method is applied to a scenario in which a single DCI schedules multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; or, the method is applied to a sidelink transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

[0070] Regarding the technical effects brought about by the tenth aspect or various optional implementation methods, reference may be made to the introduction to the technical effects of the fourth aspect or corresponding implementation methods.

[0071] In the eleventh aspect, an embodiment of the present application provides a communication device, including: a transceiver module, used to receive a second signal sent by a network device; the second signal is a signal that is not discarded among two signals with different beams to be transmitted back-to-back by the network device; the length of the second signal is greater than or equal to a length threshold; and a processing module, used to decode the second signal.

[0072] In one possible implementation, the two signals with different beams to be transmitted back-to-back by the network device include a first signal and a second signal; the method is applied to a scenario in which multiple TRPs send signals to a terminal device via a PDSCH, and both the first signal and the second signal are signals to be sent to the terminal device by the first TRP, or the first signal is a signal to be sent to the terminal device by the second TRP, and the second signal is a signal to be sent to the terminal device by the third TRP; or the method is applied to a scenario in which a single DCI schedules multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; or the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; or the method is applied to a sidelink transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

[0073] Regarding the technical effects brought about by the eleventh aspect or various optional implementation methods, reference may be made to the introduction to the technical effects of the fifth aspect or corresponding implementation methods.

[0074] In the twelfth aspect, an embodiment of the present application provides a communication device, including: a transceiver module, used to receive back-to-back a third signal and a fourth signal with different beams, the fourth signal is sent with a delay, and the sending time of the third signal is before the sending time of the fourth signal; a processing module, used to decode the third signal.

[0075] In one possible implementation, the method is applied to a scenario in which multiple TRPs send signals to a terminal device via PDSCH, and the third signal and the fourth signal are both signals to be sent by the fourth TRP to the terminal device, or the third signal is a signal to be sent by the fifth TRP to the terminal device, and the fourth signal is a signal to be sent by the sixth TRP to the terminal device; or, the method is applied to a scenario in which a single DCI schedules multi-slot PDSCH, and the third signal and the fourth signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the third signal and the fourth signal are carried on different PDSCHs; or, the method is applied to a sidelink transmission scenario, and the third signal and the fourth signal are carried on different PSFCHs.

[0076] Regarding the technical effects brought about by the twelfth aspect or various optional implementation methods, reference may be made to the introduction to the technical effects of the sixth aspect or corresponding implementation methods.

[0077] In a thirteenth aspect, the present application provides a communication device, comprising a processor, which can be used to execute computer-executable instructions stored in a memory so that the method shown in the first aspect or any possible implementation of the first aspect is executed, or the method shown in the second aspect or any possible implementation of the second aspect is executed, or the method shown in the third aspect or any possible implementation of the third aspect is executed, or the method shown in the fourth aspect or any possible implementation of the fourth aspect is executed, or the method shown in the fifth aspect or any possible implementation of the fifth aspect is executed, or the method shown in the sixth aspect or any possible implementation of the sixth aspect is executed.

[0078] In the embodiment of the present application, during the execution of the above method, the process of sending information in the above method can be understood as a process of outputting information based on the instructions of the processor. When outputting information, the processor outputs the information to the transceiver so that it can be transmitted by the transceiver. After the information is output by the processor, it may also need to be processed in other ways before it reaches the transceiver. Similarly, when the processor receives input information, the transceiver receives the information and inputs it into the processor. Furthermore, after the transceiver receives the information, the information may need to be processed in other ways before it is input into the processor.

[0079] For operations such as sending and / or receiving involved by the processor, unless otherwise specified or unless they conflict with the actual function or internal logic in the relevant description, they can be generally understood as instructions output based on the processor.

[0080] During the implementation process, the processor may be a processor specifically used to execute these methods, or may be a processor that executes computer instructions in a memory to execute these methods, such as a general-purpose processor, etc. For example, the processor may also be used to execute a program stored in the memory, and when the program is executed, the communication device executes the method as shown in the first aspect or any possible implementation of the first aspect.

[0081] In a possible implementation manner, the memory is located outside the above communication device.

[0082] In a possible implementation manner, the memory is located within the above-mentioned communication device.

[0083] In the embodiment of the present application, the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together.

[0084] In a possible implementation, the communication device further includes a transceiver, and the transceiver is used to receive a message or send a message, etc.

[0085] In a fourteenth aspect, the present application provides a communication device, which includes a processing circuit and an interface circuit, the interface circuit being used to acquire data or output data; the processing circuit being used to execute the corresponding method as shown in the above-mentioned first aspect or any possible implementation of the first aspect, or the processing circuit being used to execute the corresponding method as shown in the above-mentioned second aspect or any possible implementation of the second aspect, or the processing circuit being used to execute the corresponding method as shown in the above-mentioned third aspect or any possible implementation of the third aspect, or the processing circuit being used to execute the corresponding method as shown in the above-mentioned fourth aspect or any possible implementation of the fourth aspect, or the processing circuit being used to execute the corresponding method as shown in the above-mentioned fifth aspect or any possible implementation of the fifth aspect, or the processing circuit being used to execute the corresponding method as shown in the above-mentioned sixth aspect or any possible implementation of the sixth aspect.

[0086] In a fifteenth aspect, the present application provides a computer-readable storage medium, which is used to store a computer program. When the computer-readable storage medium is run on a computer, the method shown in the first aspect or any possible implementation of the first aspect is executed, or the method shown in the second aspect or any possible implementation of the second aspect is executed, or the method shown in the third aspect or any possible implementation of the third aspect is executed, or the method shown in the fourth aspect or any possible implementation of the fourth aspect is executed, or the method shown in the fifth aspect or any possible implementation of the fifth aspect is executed, or the method shown in the sixth aspect or any possible implementation of the sixth aspect is executed.

[0087] In the sixteenth aspect, the present application provides a computer program product, which includes a computer program or a computer code, which, when running on a computer, enables the method shown in the first aspect or any possible implementation of the first aspect to be executed, or enables the method shown in the second aspect or any possible implementation of the second aspect to be executed, or enables the method shown in the third aspect or any possible implementation of the third aspect to be executed, or enables the method shown in the fourth aspect or any possible implementation of the fourth aspect to be executed, or enables the method shown in the fifth aspect or any possible implementation of the fifth aspect to be executed. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0089] Figure 1 It is a schematic diagram of the architecture of a communication system provided by the present application;

[0090] Figure 2 It is a schematic diagram of the architecture of another communication system provided by the present application;

[0091] Figure 3 A flow chart of a communication method provided in an embodiment of the present application;

[0092] Figure 4A and Figure 4B A comparison example of the first signal provided in the embodiment of the present application and the first signal of a punctured portion;

[0093] Figure 5 An example of a circular mapping provided in an embodiment of the present application;

[0094] Figure 6 An example of sequential mapping provided in an embodiment of the present application;

[0095] Figure 7 An example of a single DCI scheduling multi-slot PDSCH provided in an embodiment of the present application;

[0096] Figure 8 A flow chart of another communication method provided in an embodiment of the present application;

[0097] Fig. 9 A flow chart of another communication method provided in an embodiment of the present application;

[0098] Fig.10 A flow chart of another communication method provided in an embodiment of the present application;

[0099] Fig.11 A flow chart of another communication method provided in an embodiment of the present application;

[0100] Fig.12 An example of introducing a gap between eCCAs provided in an embodiment of the present application;

[0101] Fig.13 A flow chart of another communication method provided in an embodiment of the present application;

[0102] Fig.14 A flow chart of another communication method provided in an embodiment of the present application;

[0103] Fig.15 A flow chart of another communication method provided in an embodiment of the present application;

[0104] Fig.16 A flow chart of another communication method provided in an embodiment of the present application;

[0105] Fig.17is a structural diagram of a communication device provided in an embodiment of the present application;

[0106] Fig.18 is a structural diagram of another communication device provided in an embodiment of the present application;

[0107] Fig.19 is a structural diagram of another communication device provided in an embodiment of the present application;

[0108] Fig. 20 is a structural diagram of another communication device provided in an embodiment of the present application;

[0109] Fig.21 is a structural diagram of another communication device provided in an embodiment of the present application;

[0110] Fig. 22 is a structural diagram of another communication device provided in an embodiment of the present application;

[0111] Fig.23 A schematic diagram of the structure of another communication device 230 provided in an embodiment of the present application;

[0112] Fig.24 A schematic diagram of the structure of another communication device 240 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0113] The terms "first" and "second" in the specification, claims and drawings of this application are only used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. 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 may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0114] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification and the appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear contrary indication in the context. It should also be understood that the term "and / or" used in the present application refers to and includes any or all possible combinations of one or more listed items. For example, "A and / or B" can represent: only A exists, only B exists, and A and B exist at the same time, wherein A, B can be singular or plural. The term "multiple" used in the present application refers to two or more.

[0115] The "embodiment" mentioned in this article means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0116] The network architecture involved in this application will be described in detail below.

[0117] The technical solution provided in 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, fifth generation (5G) communication system or new radio (NR) and other future communication systems such as 6G. The communication system to which the technical solution provided in the present application is applicable includes at least two entities, one entity (such as a base station) can send signals and implement beam switching, and the other entity (such as a user equipment) can receive signals. It should be understood that the technical solution provided in the present application is applicable to any communication system including at least two entities mentioned above and involving beam switching.

[0118] See also Figure 1 , Figure 1 This is a schematic diagram of the architecture of a communication system provided by this application. Figure 1 As shown, the communication system includes one or more network devices (such as base stations). Figure 1 Only one network device is taken as an example; and one or more user devices connected to the network device, Figure 1 Only four user equipments are taken as an example, namely user equipment 1 to user equipment 4.

[0119] Among them, the network device can be a device that can communicate with the user equipment. The network device can be any device with wireless transceiver function, and the network device can be a base station, an access point or a transmission reception point (TRP), or it can be a device in an access network that communicates with the user equipment through one or more sectors (cell) on the air interface, etc., and this application does not limit this. For example, the base station can be an evolutionary base station (evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a next generation base station (next generation, gNB) in a 5G network, etc. It can be understood that the base station can also be a base station in a future evolved public land mobile network (public land mobile network, PLMN), etc.

[0120] Optionally, the network device may also be an access node, a wireless relay node, a wireless backhaul node, etc. in a wireless local area network (wireless fidelity, WiFi) system.

[0121] Optionally, the network device may also be a wireless controller in a cloud radio access network (CRAN) scenario.

[0122] Optionally, in some deployments of the base station, the base station may include a centralized unit (CU) and a distributed unit (DU), etc. In other deployments of the base station, the CU may also be divided into a CU-control plane (CP) and a CU-user plane (UP), etc. In other deployments of the base station, the base station may also be an open radio access network (ORAN) architecture, etc. This application does not limit the specific deployment method of the base station.

[0123] Among them, user equipment (UE) can be called terminal equipment. The user equipment in this application can be a device with wireless transceiver function, which can communicate with one or more core network (CN) devices (or core devices) via access network equipment (or access equipment) in the radio access network (RAN). The user equipment can send uplink signals to network equipment and / or receive downlink signals from network equipment. User equipment can include mobile phones, cars, tablet computers, smart speakers, train detectors, gas stations, etc. The main functions include collecting data (part of user equipment), receiving control information and downlink data of network equipment, and transmitting uplink data to network equipment. Optionally, the user equipment can also be called access terminal, terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless network equipment, user agent or user device, etc. Optionally, the user equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.). Optionally, the user device can be a handheld device with wireless communication function, a vehicle-mounted device, a wearable device, or a terminal in the Internet of Things, the Internet of Vehicles, a 5G network, and any form of terminal in future networks, etc., which is not limited in this application.

[0124] Optional, Figure 1 In the communication system shown, user devices can also communicate with each other through technologies such as device to device (D2D), vehicle to everything (V2X) or machine to machine (M2M). This application does not limit the communication method between user devices.

[0125] Figure 1 In the communication system shown, the network device and any user equipment can be used to execute the method provided in the embodiment of the present application.

[0126] See also Figure 2 , Figure 2 is a schematic diagram of the architecture of another communication system provided by this application. Figure 2 As shown, the communication system includes one or more network devices (such as base stations). Figure 2 In the example, only three network devices are taken, namely, network device 1, network device 2 and network device 3; and one or more user devices communicating with the network devices, Figure 1 Only one user device, namely user device 5, is taken as an example. Figure 2The communication system shown is an example of a downlink transmission system based on multi-station cooperation. Figure 2 In the communication system shown, multiple network devices cooperate to provide communication services for the same user equipment. Figure 2 The communication system in the invention can be applied to scenarios where multiple transmission reception points (TRP) send signals to terminal devices via a physical downlink shared channel (PDSCH), such as scenarios where M-TRP PDSCH repetition operation is implemented.

[0127] The signal mentioned in the present invention can be a downlink communication channel, such as PDSCH, PDCCH, or a downlink reference signal, such as a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), a tracking reference signal (TRS), a phase tracking reference signal (PT-RS), a demodulation reference signal (DMRS) of PDSCH and a DMRS of a physical downlink control channel (PDCCH), or an uplink channel or an uplink reference signal, such as a physical uplink control channel (PUCCH), a physical random access channel (PRACH), a physical uplink shared channel (PUSCH) and a channel sounding reference signal (SRS), etc.

[0128] Figure 2 In the communication system shown, the network device and any user equipment can be used to execute the method provided in the embodiment of the present application.

[0129] As mentioned above, since beam switching cannot be completed within the CP time, beam switching is likely to affect the communication quality and even fail to ensure that data is successfully transmitted. The communication method provided in the present application can reduce the impact of beam switching on communication quality. The communication method provided in the embodiment of the present application is described below in conjunction with the accompanying drawings.

[0130] Figure 3 A flow chart of a communication method provided in an embodiment of the present application. Figure 3 As shown, the method includes:

[0131] 301. When the beams of a first signal and a second signal to be transmitted back-to-back are different, the network device punctures a portion of the first signal.

[0132] Puncturing a portion of the first signal means that the first signal does not transmit any information on one or more symbols in its corresponding time domain. In other words, a portion of the OFDM symbols of the first signal are discarded, that is, the OFDM symbols of the first signal are reduced. Puncturing the first signal can be regarded as discarding (dropping) a portion of the first signal. In this application, OFDM symbol and symbol are the same concept.

[0133] Figure 4A and Figure 4B This is a comparison example of the first signal provided in the embodiment of the present application and the first signal of the punctured portion. Figure 4A As shown, 401 represents the first signal; 402 represents a portion of the first signal that is punctured, 4021 represents the punctured portion of the first signal (one or more symbols), the punctured portion is located in the first or first N symbols (N is a positive integer) of the first signal, and 4022 represents the unpunctured portion of the first signal (one or more symbols). If a signal is punctured, the number of OFDM symbols corresponding to the signal is reduced, because no information is transmitted on the OFDM symbols corresponding to the punctured portion of the signal, and only the OFDM symbols corresponding to the unpunctured portion are used to transmit information. For example, the network device first sends the second signal and then sends the punctured first signal. The first signal corresponds to K OFDM symbols, and the first signal corresponds to F OFDM symbols after being punctured. K and F are both integers greater than 0, and K is greater than F. As can be seen from 4A, the length of the unpunctured portion 4022 of the first signal is shorter than the length of the first signal 401, indicating that the number of OFDM symbols corresponding to the punctured portion of the first signal is less than the number of OFDM symbols corresponding to the first signal. The punctured portion of the first signal is equivalent to increasing the time interval between the first signal and the second signal, so that the beam switching can be completed within the time interval. Wherein, N can be related to the subcarrier spacing of the signal, or N is a predefined value.

[0134] like Figure 4B As shown, 403 represents the first signal; 404 represents a portion of the first signal that has been punctured, 4041 represents the portion of the first signal that has not been punctured (one or more symbols), and 4042 represents the portion of the first signal that has been punctured (one or more symbols), and the punctured portion is located at the last N symbols (N is a positive integer) of the first signal. As can be seen from 4B, the length of the portion 4041 of the first signal that has not been punctured is shorter than the length of the first signal 403, indicating that the number of OFDM symbols corresponding to the portion of the first signal that has been punctured is less than the number of OFDM symbols corresponding to the first signal. Compared with the first signal, the first signal that has been punctured has a smaller number of corresponding OFDM symbols, which is equivalent to discarding several OFDM symbols of the first signal, so that the beam switching operation can be started earlier. The following two examples are combined to introduce the beam switching durations corresponding to first sending the first signal and then sending the second signal and first sending the portion of the first signal that has been punctured and then sending the second signal. In Example 1, the network device first sends a first signal and then sends a second signal. The first signal corresponds to k symbols, where k is an integer greater than 1. After the network device sends the first signal, it immediately sends the second signal, so that the duration for the network device to perform beam switching is the CP of the second signal. In this example, the network device needs to complete the beam switching within the duration corresponding to the CP of the second signal. In Example 2, the network device first sends a punctured portion of the first signal and then sends the second signal. The punctured portion of the first signal corresponds to (k-2) symbols, and the punctured portion of the first signal corresponds to 2 symbols. After the network device sends the unpunctured portion of the first signal, it immediately sends the second signal, so that the duration for the network device to perform beam switching is the CP of the second signal plus the 2 symbols corresponding to the punctured portion of the first signal. By comparing Example 2 and Example 1, it can be seen that there is more time to achieve beam switching by sending the punctured first signal. Among them, N can be related to the subcarrier spacing of the signal, or N is a predefined value.

[0135] In a possible implementation, the first signal is the signal with a later start time of two adjacent or back-to-back signals, or the first signal is the signal with an earlier start time of two adjacent or back-to-back signals, or the first signal is the signal with a longer time domain length of two adjacent or back-to-back signals, or the first signal is the signal with a shorter time domain length of two adjacent or back-to-back signals.

[0136] In a possible implementation, the priority of the first signal is higher or lower than the second signal. The network device may, according to the actual application scenario, puncture the signal with higher or lower priority in the two signals with different beams to be transmitted back to back. Table 1 is an example of a signal priority provided in an embodiment of the present application. In Table 1, the signal with the highest priority (i.e., priority 0) includes: CSI-RS and SSB for performing layer 1 reference signal receiving power (L1-reference signal receiving power, L1-RSRP) measurement; the signal with priority 1 includes: control resource set (control resource set, CORESET) 0; the signal with priority 2 includes: CORESET N, N = 1, 2, ...; the signal with priority 3 includes: CSI-RS for tracing or channel quality indicator (channel quality indicator, CQI), i.e. CSI-RS for tracing / CQI; the signal with priority 4 includes: PDSCH DMRS; the signal with priority 4 includes: PDSCH data symbol (datasymbol). It should be understood that in actual applications, the priorities of various downlink signals can be configured according to actual needs, and this application is not limited.

[0137] Table 1

[0138] Priority Signal 0 SSB, CSI-RS for L1-RSRP 1 CORESET 0 2 CORESET N, N = 1, 2, ... 3 CSI-RS for tracing / CQI 4 PDSCH DMRS 5 PDSCH data symbol)

[0139] In a possible implementation, the priority of the first signal is the same as the priority of the second signal, and the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal. In these embodiments, when the network device is to transmit two signals with different beams back to back, if the two signals have the same priority, the signal with an earlier or later sending time of the two signals may be punctured. In some embodiments, the sending time of the first signal is after the sending time of the second signal; puncturing a part of the first signal may be: puncturing the first several OFDM symbols of the first signal (see Figure 4A ). That is, puncture the first several OFDM symbols in the time sequence among the multiple OFDM symbols corresponding to the first signal. In some embodiments, the sending time of the first signal is before the sending time of the second signal; puncturing a part of the first signal may be: puncturing the last several OFDM symbols of the first signal (see Figure 4B). That is to say, the last several OFDM symbols in the time sequence among the multiple OFDM symbols corresponding to the first signal are punctured. The specific number of symbols punctured in the first signal can be configured according to actual needs. The punctured symbol in the first signal can be positively correlated with the length of the first signal, can be negatively correlated with the length of the CP of the first signal, or can be a fixed N number. N can be 1, 2, 3, etc., and is not limited in this application.

[0140] 302. The network device sends the punctured first signal to the user equipment.

[0141] In an embodiment of the present application, when the beams of the first signal and the second signal to be transmitted back-to-back are different, a portion of the first signal is punctured; this allows more time to achieve beam switching; and the impact of beam switching on communication quality can be reduced.

[0142] Figure 3 The communication method flow in the embodiment can be applied to any scenario where beam switching cannot be completed within the CP time. Some examples of possible application scenarios are introduced below.

[0143] Example 1:

[0144] Figure 3 The communication method flow in is applied to the scenario where multiple TRPs (M-TRP PDSCH) send signals to the terminal device through PDSCH, such as the scenario of implementing the M-TRP PDSCH repetition operation. In Example 1, the above-mentioned first signal and the above-mentioned second signal are both signals to be sent by the first TRP to the above-mentioned terminal device, or the above-mentioned first signal is a signal to be sent by the second TRP to the above-mentioned terminal device, and the above-mentioned second signal is a signal to be sent by the third TRP to the above-mentioned terminal device. For example, when the first TRP is to send the first signal and the second signal back-to-back, a part of the first signal can be punctured. For another example, when the first signal to be sent by the second TRP to the terminal device and the second signal to be sent by the third TRP to the terminal device are signals to be transmitted back-to-back to the same terminal device and have different beams, the second TRP punctures a part of the first signal. It should be understood that for M-TRP PDSCH repetition, it can be specified to puncture the PDSCH of a certain TRP, or to puncture a PDSCH with a later sending time (if the PDSCH is too short, it can be dropped directly).

[0145] M-TRP PDSCH repetition can be divided into two schemes, one is cyclic mapping and the other is sequential mapping. Figure 5An example of a circular mapping provided in an embodiment of the present application. Figure 6 An example of sequential mapping provided in an embodiment of the present application. Figure 5 and Figure 6 In the figure, each rectangular box represents a signal (e.g., a subcarrier) sent by a TRP through the PDSCH, and the ellipse represents the direction of the beam. Figure 5 In the figure, 501 and 503 represent signals sent by TRP1 through PDSCH, and 502 and 503 represent signals sent by TRP2 through PDSCH. Exemplarily, the first signal may be a signal represented by any one of 501, 502, 503, and 504, and the second signal may be a signal adjacent to or before the first signal. Figure 6 In , 601 and 602 represent signals sent by TRP3 through PDSCH, and 603 and 604 represent signals sent by TRP4 through PDSCH. For example, the first signal is the signal represented by 603, and the second signal is the signal represented by 604. For another example, the first signal is the signal represented by 604, and the second signal is the signal represented by 603. For another example, the first signal is the signal represented by 602, and the second signal is the signal represented by 603. For another example, the first signal is the signal represented by 603, and the second signal is the signal represented by 602. Compare Figure 5 and Figure 6 It can be seen that the specific difference between cyclic mapping and sequential mapping lies in the different mapping order between TRP and beam. Figure 5 As shown, any two adjacent signals sent via PDSCH have different beams. The method can be extended to any N PDSCHs, where N is a positive integer. In addition, the method can also be applied to the repeated transmission of channels of other M-TRPs, such as PUSCH, PUCCH, etc.

[0146] Example 2:

[0147] Figure 3 The communication method process in the present invention is applied to the scenario of single DCI (single DCI) scheduling multi-slot PDSCH (multi-slotPDSCH). Figure 7 This is an example of a single DCI scheduling multi-slot PDSCH provided in an embodiment of the present application. Figure 7 As shown, any two adjacent PDSCHs scheduled by single DCI have different beam directions. For example, the first signal may be PDSCH1 and PDSCH3, and the second signal may be a signal adjacent to or before the first signal. For another example, the first signal may be PDSCH2 and PDSCH4, and the second signal may be a signal adjacent to or before the first signal.

[0148] The method can be extended to any N PDSCHs, where N is a positive integer.

[0149] Example 3:

[0150] When the base station performs M-TRP scheduling to transmit PUSCH, PDSCH, and PUCCH, it needs to ensure that there is a certain gap between adjacent channels to switch beams. Alternatively, when the base station performs single DCI scheduling of multi-slot PDSCH, it needs to ensure that there is a certain gap between adjacent channels to switch beams. Alternatively, the base station needs to ensure that there is a certain gap between two adjacent transmissions to switch beams.

[0151] Example 4:

[0152] Figure 3 The communication method process in is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs. In some embodiments, a gap may be introduced for repetition type B, and a gap symbol(s) may appear when the TRP switches.

[0153] Example 5:

[0154] Figure 3 The communication method process in the embodiment is applied to a sidelink transmission scenario, and the first signal and the second signal are carried on different sidelink channels. For the sidelink, the number of gap symbols between two adjacent signals with different beams carried on the sidelink channel can be increased according to actual needs.

[0155] Figure 8 A flow chart of another communication method provided in an embodiment of the present application. Figure 8 The method flow in is Figure 3 A possible implementation of the method flow in . Figure 8 As shown, the method includes:

[0156] 801. When the beams of a first signal and a second signal to be transmitted back-to-back are different, the network device compares the priorities of the first signal and the second signal.

[0157] In some embodiments, the network device may compare the priorities of the first signal and the second signal according to Table 1.

[0158] 802. When the priority of the first signal is higher than the priority of the second signal, the network device punctures a portion of the first signal.

[0159] Step 802 may be replaced by: the network device punctures a portion of the first signal when the priority of the first signal is lower than the priority of the second signal.

[0160] Step 802 may be replaced by: when the priority of the first signal is equal to the priority of the second signal, the network device punctures a portion of the first signal that is sent earlier. It should be understood that the sending time of the first signal is before the sending time of the second signal.

[0161] Step 802 may be replaced by: when the priority of the first signal is equal to the priority of the second signal, the network device punctures a part of the first signal that is sent later. It should be understood that the sending time of the first signal is after the sending time of the second signal.

[0162] 803. The network device sends a punctured first signal to the terminal device.

[0163] The network device may also send a second signal to the terminal device. The beam in which the network device sends the first signal is different from the beam in which the network device sends the second signal.

[0164] In the embodiment of the present application, the network device can accurately and quickly determine the punctured signal according to the priority and sending time of the first signal and the second signal, so as to have more time to realize beam switching; and can reduce the impact of beam switching on communication quality.

[0165] Fig. 9 A flow chart of another communication method provided in an embodiment of the present application. Fig. 9 The method flow is Figure 3 A possible implementation of the method flow in . Fig. 9 As shown, the method includes:

[0166] 901. When a first signal and a second signal to be transmitted back-to-back have different beams, the network device determines whether to discard the first signal or the second signal.

[0167] If yes, go to step 902; if no, go to step 903.

[0168] In some embodiments, the network device may discard the signal whose length is less than the length threshold in the first signal and the second signal. For example, if the length of the first signal is less than the length threshold and the length of the second signal is greater than or equal to the length threshold, the network device determines to discard (drop) the first signal. For another example, if the length of the first signal is greater than or equal to the length threshold and the length of the second signal is less than the length threshold, the network device determines to discard (drop) the second signal. Wherein, the threshold can be configured by base station high-level signaling or a predefined value.

[0169] 902. The network device discards the first signal.

[0170] The length of the first signal is less than the length threshold and the length of the second signal is greater than or equal to the length threshold. The network device discarding the first signal can be understood as the network device no longer sending the first signal, thus avoiding sending the first signal and the second signal back to back.

[0171] 903. The network device compares priorities of the first signal and the second signal.

[0172] 904. When the priority of the first signal is higher than the priority of the second signal, the network device punctures a portion of the first signal.

[0173] Step 904 may refer to step 802 .

[0174] 905. The network device sends a punctured first signal to the terminal device.

[0175] In the embodiment of the present application, priority is given to discarding signals whose length is less than the length threshold, so as to avoid performing beam switching operations. If the lengths of the two signals to be transmitted back-to-back are both greater than or equal to the length threshold, then one of the signals is punctured. This can avoid the punctured signal carrying less useful information and reduce resource overhead.

[0176] Fig.10 Another communication method flow chart provided in the embodiment of the present application. Fig.10 As shown, the method includes:

[0177] 1001. When the beams of a first signal and a second signal to be transmitted back-to-back are different, the network device discards the first signal.

[0178] The length of the first signal is less than a length threshold, and the length of the second signal is greater than or equal to the length threshold.

[0179] 1002. The network device sends a second signal to the terminal device.

[0180] In one possible implementation, the method is applied to a scenario where multiple TRPs send signals to a terminal device via PDSCH, and both the first signal and the second signal are signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; or, the method is applied to a scenario where a single DCI schedules multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; or, the method is applied to a side link transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

[0181] In an embodiment of the present application, when the beams of the first signal and the second signal to be transmitted back-to-back are different, the first signal whose length is less than the length threshold is discarded; this can avoid performing a beam switching operation.

[0182] Fig.11 Another communication method flow chart provided in the embodiment of the present application. Fig.11 As shown, the method includes:

[0183] 1101. When the beams of the third signal and the fourth signal to be transmitted back-to-back are different, the network device sends the third signal to the terminal device and delays sending the fourth signal.

[0184] The sending time of the third signal is before the sending time of the fourth signal. It should be understood that when the network device is to transmit two signals with different beams back to back, it can delay (postpone) the one with the later sending time, for example, retreat Xsymbol, X symbol can ensure the completion of beam switch. Delaying the sending of one of the two signals with different beams to be transmitted back to back is actually to increase the gap between the two signals. For example, for NR-U (5G new radio in unlicensed spectrum), for directional listen before talk (LBT), especially the LBT of each beam (i.e., per beam LBT), it is necessary to introduce a gap between enhanced clear channel assessment (eCCA). Fig.12 This is an example of introducing a gap between eCCAs provided in an embodiment of the present application. Fig.12As shown, if the monitoring beam directions corresponding to two adjacent eCCAs are different, there may be a gap between any two adjacent eCCAs. For example, the gap between eCCA-1 and eCCA-2 can be understood as delaying the time corresponding to the gap to send eCCA-2. For another example, the gap between eCCA-2 and eCCA-3 can be understood as delaying the time corresponding to the gap to send eCCA-3.

[0185] In a possible implementation, the method is applied to a scenario where multiple TRPs send signals to a terminal device via PDSCH, and both the third signal and the fourth signal are signals to be sent by the fourth TRP to the terminal device, or the third signal is a signal to be sent by the fifth TRP to the terminal device, and the fourth signal is a signal to be sent by the sixth TRP to the terminal device; or the method is applied to a scenario where a single DCI schedules multi-slot PDSCH, and the third signal and the fourth signal are carried on different PDSCHs; or the method is applied to a transmission scenario based on repetition type B, and the third signal and the fourth signal are carried on different PDSCHs; or the method is applied to a sidelink transmission scenario, and the third signal and the fourth signal are carried on different PSFCHs. In this implementation, delaying the sending of the fourth signal can give the network device more time to perform beam switching, which can reduce the impact of beam switching on communication quality.

[0186] In a possible implementation, the delay in sending the fourth signal includes sending the fourth signal after beam switching is completed. In this implementation, the fourth signal is sent after beam switching is completed, which can avoid the problem of sending the fourth signal without switching the beam.

[0187] In the embodiment of the present application, when the beams of the third signal and the fourth signal to be transmitted back-to-back are different, the third signal is sent and the fourth signal is sent with a delay. Delaying the sending of the fourth signal can give the network device more time to perform beam switching, which can reduce the impact of beam switching on communication quality.

[0188] Fig.13 A flow chart of another communication method provided in an embodiment of the present application. Fig.13 The method flow in is Fig.11 A possible implementation of the method flow in . Fig.13 As shown, the method includes:

[0189] 1301. When the beams of a third signal and a fourth signal to be transmitted back-to-back are different, the network device determines whether to discard the third signal or the fourth signal.

[0190] If yes, execute step 1302; if no, execute step 1303. Step 1301 may refer to step 901.

[0191] 1302. The network device discards the third signal.

[0192] The length of the third signal is less than a length threshold and the length of the fourth signal is greater than or equal to the length threshold. Step 1302 may refer to step 902.

[0193] 1303. The network device sends a third signal to the terminal device and delays sending a fourth signal.

[0194] In the embodiment of the present application, priority is given to discarding signals whose length is less than the length threshold, so that the beam switching operation can be avoided. If the lengths of the two signals to be transmitted back-to-back are both greater than or equal to the length threshold, the fourth signal is sent with a delay; more time can be left for the network device to perform beam switching, which can reduce the impact of beam switching on communication quality.

[0195] The above embodiments mainly describe the communication method provided by the embodiments of the present application from the perspective of the network device. The following mainly describes the communication method provided by the embodiments of the present application from the perspective of the terminal device.

[0196] Fig.14 A flow chart of another communication method provided in an embodiment of the present application. Fig.14 The method flow in can be regarded as Figure 3 The communication method flow executed by the terminal device in . Fig.14 As shown, the method includes:

[0197] 1401. A terminal device receives a first signal and a second signal with different beams back to back.

[0198] A portion of the first signal is punctured.

[0199] 1402. The terminal device decodes the first signal.

[0200] In a possible implementation, the priority of the first signal is higher or lower than that of the second signal. In this implementation, the first signal with a higher or lower priority is sent with delay; which signal to delay sending can be accurately and quickly determined.

[0201] In a possible implementation, the priority of the first signal is the same as that of the second signal, and the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal. In this implementation, when the priority of the first signal is the same as that of the second signal, the first signal with an earlier or later puncture sending time can be accurately and quickly determined.

[0202] In a possible implementation, the transmission time of the first signal is after the transmission time of the second signal; the first one or more OFDM symbols of the first signal are punctured. In this implementation, the first one or more OFDM symbols of the first signal are punctured so that there is more time to complete the beam switching; in this way, the terminal device can successfully receive all the useful information sent by the network device, which can reduce the impact of the beam switching on the communication quality.

[0203] In a possible implementation manner, the sending time of the first signal is before the sending time of the second signal; and the last one or more OFDM symbols of the first signal are punctured.

[0204] In an embodiment of the present application, when a first signal and a second signal with different beams are received back to back, a portion of the first signal is punctured; in this way, the terminal device has more time to implement beam switching; and the impact of beam switching on communication quality can be reduced.

[0205] Fig.15 A flow chart of another communication method provided in an embodiment of the present application. Fig.15 The method flow in can be regarded as Fig.10 The communication method flow executed by the terminal device in . Fig.15 As shown, the method includes:

[0206] 1501. The terminal device receives a second signal sent by the network device.

[0207] The second signal is a signal that is not discarded among the two signals with different beams to be transmitted back-to-back by the network device; the length of the second signal is greater than or equal to a length threshold. The first signal to be transmitted back-to-back with the second signal by the network device is discarded (dropped), and the length of the first signal is less than the length threshold.

[0208] 1502. The terminal device decodes the second signal.

[0209] In the embodiment of the present application, the second signal that is not discarded is received from two signals with different beams to be transmitted back-to-back. The first signal to be transmitted back-to-back with the second signal by the network device is discarded, which can avoid the problem that the beam switching cannot be completed in time and reduce the execution of the beam switching operation.

[0210] Fig.16 A flow chart of another communication method provided in an embodiment of the present application. Fig.16 The method flow in can be regarded as Fig.11 The communication method flow executed by the terminal device in . Fig.16 As shown, the method includes:

[0211] 1601. The terminal device receives a third signal and a fourth signal with different beams back to back.

[0212] The fourth signal is sent with a delay, and the sending time of the third signal is before the sending time of the fourth signal

[0213] 1602. The terminal device decodes the third signal.

[0214] In the embodiment of the present application, the fourth signal is sent with a delay, that is, the reception of the fourth signal is delayed; this can ensure that when the fourth signal is received, the network device has completed the beam switching, thereby reducing the impact of the beam switching on the communication quality.

[0215] The following will introduce the communication device provided in the embodiments of the present application, that is, the network device and the terminal device that implement the communication method provided in the embodiments of the present application.

[0216] Fig.17 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application, and the communication device can be used to perform the operations performed by the network device in the above method embodiment. For example, the communication device can be used to perform Figure 3 , Figure 8 , Fig. 9 The method performed by the network device shown in Fig.17 As shown, the communication device includes:

[0217] A processing module 1701 is used for puncturing a part of the first signal when the beams of the first signal and the second signal to be transmitted back-to-back are different;

[0218] The transceiver module 1702 is used to send the first signal after puncture.

[0219] In a possible implementation manner, the priority of the first signal is higher or lower than that of the second signal.

[0220] In a possible implementation, the priority of the first signal is the same as the priority of the second signal, the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal.

[0221] In a possible implementation, the sending time of the first signal is after the sending time of the second signal; the processing module 1701 is specifically configured to puncture the first one or more OFDM symbols of the first signal.

[0222] In a possible implementation, the processing module 1701 is specifically configured to puncture a portion of the first signal when the length of the first signal is greater than or equal to a length threshold.

[0223] Fig.18 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application, and the communication device can be used to perform the operations performed by the network device in the above method embodiment. For example, the communication device can be used to perform Fig.10 The method performed by the network device shown in Fig.18 As shown, the communication device includes:

[0224] The processing module 1801 is configured to discard the first signal when the beams of the first signal and the second signal to be transmitted back-to-back are different; the length of the first signal is less than a length threshold, and the length of the second signal is greater than or equal to the length threshold;

[0225] The transceiver module 1802 is used to send the second signal.

[0226] Fig.19 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application, and the communication device can be used to perform the operations performed by the network device in the above method embodiment. For example, the communication device can be used to perform Fig.11 or Fig.13 The method performed by the network device shown in Fig.18 As shown, the communication device includes:

[0227] The transceiver module 1901 is used to send the third signal and delay sending the fourth signal when the beams of the third signal and the fourth signal to be transmitted back-to-back are different; the sending time of the third signal is before the sending time of the fourth signal.

[0228] Fig. 20 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application, and the communication device can be used to perform the operations performed by the user equipment in the above method embodiment. For example, the communication device can be used to perform Fig.14 The method performed by the user equipment shown in FIG. Fig. 20 As shown, the communication device includes:

[0229] The transceiver module 2001 is used for back-to-back receiving of a first signal and a second signal with different beams; a part of the first signal is punctured;

[0230] The processing module 2002 is used to decode the first signal.

[0231] In a possible implementation manner, the priority of the first signal is higher or lower than that of the second signal.

[0232] In a possible implementation, the priority of the first signal is the same as the priority of the second signal, the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal.

[0233] In a possible implementation, the first signal is sent after the second signal is sent; and the first one or more OFDM symbols of the first signal are punctured.

[0234] Fig.21 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application, and the communication device can be used to perform the operations performed by the user equipment in the above method embodiment. For example, the communication device can be used to perform Fig.15 The method performed by the user equipment shown in FIG. Fig.21 As shown, the communication device includes:

[0235] The transceiver module 2101 is used to receive a second signal sent by the network device; the second signal is a signal that is not discarded in the two signals with different beams to be transmitted back-to-back by the network device; the length of the second signal is greater than or equal to the length threshold;

[0236] The processing module 2102 is used to decode the second signal.

[0237] Fig. 22 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application, and the communication device can be used to perform the operations performed by the user equipment in the above method embodiment. For example, the communication device can be used to perform Fig.16 The method performed by the user equipment shown in FIG. Fig. 22 As shown, the communication device includes:

[0238] The transceiver module 2201 is configured to receive a third signal and a fourth signal with different beams back to back, wherein the fourth signal is sent with delay, and a sending time of the third signal is before a sending time of the fourth signal;

[0239] The processing module 2202 is configured to decode the third signal.

[0240] In one possible implementation, the method is applied to a scenario where multiple TRPs send signals to a terminal device via PDSCH, and both the third signal and the fourth signal are signals to be sent by the fourth TRP to the terminal device, or the third signal is a signal to be sent by the fifth TRP to the terminal device, and the fourth signal is a signal to be sent by the sixth TRP to the terminal device; or, the method is applied to a scenario where a single DCI schedules multi-slot PDSCH, and the third signal and the fourth signal are carried on different PDSCHs; or, the method is applied to a transmission scenario based on repetition type B, and the third signal and the fourth signal are carried on different PDSCHs; or, the method is applied to a side link transmission scenario, and the third signal and the fourth signal are carried on different PSFCHs.

[0241] Fig.23 A schematic diagram of the structure of another communication device 230 provided in an embodiment of the present application. Fig.23 The communication device in the embodiment may be the above-mentioned user equipment. Fig.23 The communication device in may be the above-mentioned network device.

[0242] like Fig.23 The communication device 230 includes at least one processor 2320 and a transceiver 2310 .

[0243] In some embodiments of the present application, the processor 2320 and the transceiver 2310 may be used to perform the functions or operations performed by the above network devices. The transceiver 2310 may perform one or more of the following operations: Figure 3 Step 302, Figure 8 Step 803, Fig. 9 Step 905, Fig.10 Step 1002, Fig.11 Step 1101, Fig.13 Step 1303 in .

[0244] In other embodiments of the present application, the processor 2320 and the transceiver 2310 may be used to perform the functions or operations performed by the above-mentioned terminal device. The transceiver 2310 may perform one or more of the following operations: Fig.14 Step 1401, Fig.15 Step 1501, Fig.16 Step 1601 in .

[0245] The transceiver 2310 is used to communicate with other devices / apparatuses via a transmission medium. The processor 2320 uses the transceiver 2310 to send and receive data and / or signaling, and is used to implement the method in the above method embodiment. The processor 2320 can be used to perform operations other than the sending and receiving operations.

[0246] Optionally, the communication device 230 may further include at least one memory 2330 for storing program instructions and / or data. The memory 2330 is coupled to the processor 2320. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 2320 may operate in conjunction with the memory 2330. The processor 2320 may execute program instructions stored in the memory 2330. At least one of the at least one memory may be included in the processor.

[0247] The specific connection medium between the transceiver 2310, the processor 2320 and the memory 2330 is not limited in the embodiment of the present application. Fig.23 The memory 2330, the processor 2320 and the transceiver 2310 are connected via a bus 2340. Fig.23 The connection between other components is only for illustration and is not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.23 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0248] In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0249] Fig.24 FIG. 2 is a schematic diagram of the structure of another communication device 240 provided in an embodiment of the present application. Fig.24 As shown, Fig.24 The communication device shown includes a logic circuit 2401 and an interface 2402 . Figures 17 to 22 The processing module in can be implemented by logic circuit 2401. Figures 17 to 22 The transceiver module in can be implemented with interface 2402. Among them, the logic circuit 2401 can be a chip, a processing circuit, an integrated circuit or a system on chip (SoC) chip, etc., and the interface 2402 can be a communication interface, an input and output interface, etc. In the embodiment of the present application, the logic circuit and the interface can also be coupled to each other. The embodiment of the present application does not limit the specific connection method of the logic circuit and the interface.

[0250] In some embodiments of the present application, the logic circuit and interface may be used to execute the functions or operations performed by the above-mentioned user equipment, etc.

[0251] In other embodiments of the present application, the logic circuit and interface may be used to execute the functions or operations performed by the above-mentioned network device, etc.

[0252] The present application also provides a computer-readable storage medium, in which computer codes are stored. When the computer codes are executed on a computer, the computer executes the method of the above embodiment.

[0253] The present application also provides a computer program product, which includes a computer code or a computer program. When the computer code or the computer program runs on a computer, the communication method in the above embodiment is executed.

[0254] The present application also provides a communication system, comprising the above-mentioned terminal device and network device.

[0255] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the above claims.

Claims

1. A communication method, characterized in that: include: In a case where beams of a first signal and a second signal to be transmitted back-to-back are different, puncturing a portion of the first signal; sending the first signal after puncture; The method is applied to a scenario where the M-TRP PDSCH is repeatedly operated, the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs.

2. The method according to claim 1, characterized in that Before puncturing a portion of the first signal, the method further includes: The first signal to be punctured is determined according to the priority of the first signal and the priority of the second signal.

3. The method according to claim 1, characterized in that Before puncturing a portion of the first signal, the method further includes: The first signal to be punctured is determined according to the priority of the first signal and the priority of the second signal, as well as the sending time of the first signal and the sending time of the second signal.

4. The method according to claim 1, characterized in that: The sending time of the first signal is after the sending time of the second signal; and the puncturing a part of the first signal comprises: The first one or more Orthogonal Frequency Division Multiplexing (OFDM) symbols of the first signal are punctured.

5. A communication method, characterized in that: include: In a case where the beams of the first signal and the second signal to be transmitted back-to-back are different, discarding the first signal; The length of the first signal is less than a length threshold, and the length of the second signal is greater than or equal to the length threshold; The second signal is sent.

6. The method according to claim 5, characterized in that The method is applied to a scenario where multiple TRPs send signals to a terminal device through a PDSCH, where the first signal and the second signal are both signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; Alternatively, the method is applied to a scenario where a single DCI schedules a multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; Alternatively, the method is applied to a side link transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

7. A communication method, characterized in that: include: In the case that the beams of the third signal and the fourth signal to be transmitted back-to-back are different, the third signal is sent and the fourth signal is sent with a delay; the sending time of the third signal is before the sending time of the fourth signal.

8. The method according to claim 7, characterized in that The method is applied to a scenario where multiple TRPs send signals to a terminal device through a PDSCH, the third signal and the fourth signal are both signals to be sent by the fourth TRP to the terminal device, or the third signal is a signal to be sent by the fifth TRP to the terminal device, and the fourth signal is a signal to be sent by the sixth TRP to the terminal device; Alternatively, the method is applied to a scenario where a single DCI schedules a multi-slot PDSCH, and the third signal and the fourth signal are carried on different PDSCHs; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the third signal and the fourth signal are carried on different PDSCHs; Alternatively, the method is applied to a side link transmission scenario, and the third signal and the fourth signal are carried on different PSFCHs.

9. A communication method, characterized in that: include: receiving a first signal and a second signal having different beams back to back; a portion of the first signal is punctured; decoding the first signal; The method is applied to a scenario where the M-TRP PDSCH is repeatedly operated, the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs.

10. The method according to claim 9, characterized in that The first signal has a higher or lower priority than the second signal.

11. The method according to claim 9, characterized in that The priority of the first signal is the same as that of the second signal, the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal.

12. The method according to claim 9, characterized in that The sending time of the first signal is after the sending time of the second signal; and the first one or more OFDM symbols of the first signal are punctured.

13. A communication method, characterized in that: include: receiving a second signal sent by a network device; the second signal being a signal that is not discarded among two signals with different beams to be transmitted back-to-back by the network device; and a length of the second signal being greater than or equal to a length threshold; The second signal is decoded.

14. The method according to claim 13, characterized in that The two signals with different beams to be transmitted back-to-back by the network device include a first signal and a second signal; The method is applied to a scenario where multiple TRPs send signals to a terminal device through a PDSCH, where the first signal and the second signal are both signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; Alternatively, the method is applied to a scenario where a single DCI schedules a multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; Alternatively, the method is applied to a side link transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

15. A communication method, characterized in that: include: receiving a third signal and a fourth signal with different beams back to back, wherein the fourth signal is sent with a delay, and the sending time of the third signal is before the sending time of the fourth signal; The third signal is decoded.

16. The method according to claim 15, characterized in that The method is applied to a scenario where multiple TRPs send signals to a terminal device through a PDSCH, the third signal and the fourth signal are both signals to be sent by the fourth TRP to the terminal device, or the third signal is a signal to be sent by the fifth TRP to the terminal device, and the fourth signal is a signal to be sent by the sixth TRP to the terminal device; Alternatively, the method is applied to a scenario where a single DCI schedules a multi-slot PDSCH, and the third signal and the fourth signal are carried on different PDSCHs; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the third signal and the fourth signal are carried on different PDSCHs; Alternatively, the method is applied to a side link transmission scenario, and the third signal and the fourth signal are carried on different PSFCHs.

17. A communication device, characterized in that: include: A processing module, configured to puncture a portion of the first signal when the beams of the first signal and the second signal to be transmitted back-to-back are different; A transceiver module, used for sending the first signal after puncture; The method is applied to a scenario where the M-TRP PDSCH is repeatedly operated, the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs.

18. The communication device according to claim 17, characterized in that: The first signal has a higher or lower priority than the second signal.

19. The communication device according to claim 17, characterized in that: The priority of the first signal is the same as that of the second signal, the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal.

20. The communication device according to claim 17, characterized in that: The sending time of the first signal is after the sending time of the second signal; the processing module is specifically used to puncture the first one or more OFDM symbols of the first signal.

21. A communication device, characterized in that: include: A processing module, configured to discard the first signal when the beams of the first signal and the second signal to be transmitted back-to-back are different; The length of the first signal is less than a length threshold, and the length of the second signal is greater than or equal to the length threshold; A transceiver module is used to send the second signal.

22. The communication device according to claim 21, characterized in that The method is applied to a scenario where multiple TRPs send signals to a terminal device through a PDSCH, where the first signal and the second signal are both signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; Alternatively, the method is applied to a scenario where a single DCI schedules a multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; Alternatively, the method is applied to a side link transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

23. A communication device, characterized in that: include: A transceiver module is used to send the third signal and delay sending the fourth signal when the beams of the third signal and the fourth signal to be transmitted back-to-back are different; the sending time of the third signal is before the sending time of the fourth signal.

24. The communication device according to claim 23, characterized in that The method is applied to a scenario where multiple TRPs send signals to a terminal device through a PDSCH, the third signal and the fourth signal are both signals to be sent by the fourth TRP to the terminal device, or the third signal is a signal to be sent by the fifth TRP to the terminal device, and the fourth signal is a signal to be sent by the sixth TRP to the terminal device; Alternatively, the method is applied to a scenario where a single DCI schedules a multi-slot PDSCH, and the third signal and the fourth signal are carried on different PDSCHs; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the third signal and the fourth signal are carried on different PDSCHs; Alternatively, the method is applied to a side link transmission scenario, and the third signal and the fourth signal are carried on different PSFCHs.

25. A communication device, characterized in that: include: A transceiver module, configured to receive a first signal and a second signal with different beams back to back; a portion of the first signal is punctured; A processing module, configured to decode the first signal; The method is applied to a scenario where the M-TRP PDSCH is repeatedly operated, the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs.

26. The communication device according to claim 25, characterized in that The first signal has a higher or lower priority than the second signal.

27. The communication device according to claim 25, characterized in that The priority of the first signal is the same as that of the second signal, the sending time of the first signal is before the sending time of the second signal, or the sending time of the first signal is after the sending time of the second signal.

28. The communication device according to claim 25, characterized in that The sending time of the first signal is after the sending time of the second signal; and the first one or more OFDM symbols of the first signal are punctured.

29. A communication device, characterized in that: include: A transceiver module, configured to receive a second signal sent by a network device; the second signal is a signal that is not discarded among two signals with different beams to be transmitted back-to-back by the network device; and the length of the second signal is greater than or equal to a length threshold; A processing module is used to decode the second signal.

30. The communication device according to claim 29, characterized in that The two signals with different beams to be transmitted back-to-back by the network device include a first signal and a second signal; The method is applied to a scenario where multiple TRPs send signals to a terminal device through a PDSCH, where the first signal and the second signal are both signals to be sent by the first TRP to the terminal device, or the first signal is a signal to be sent by the second TRP to the terminal device, and the second signal is a signal to be sent by the third TRP to the terminal device; Alternatively, the method is applied to a scenario where a single DCI schedules a multi-slot PDSCH, and the first signal and the second signal are carried on different PDSCHs; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the first signal and the second signal are signals sent by different TRPs; Alternatively, the method is applied to a side link transmission scenario, and the first signal and the second signal are carried on different PSFCHs.

31. A communication device, characterized in that: include: A transceiver module, configured to receive a third signal and a fourth signal with different beams back to back, wherein the fourth signal is sent with a delay, and the sending time of the third signal is before the sending time of the fourth signal; A processing module is used to decode the third signal.

32. The communication device according to claim 31, characterized in that The method is applied to a scenario where multiple TRPs send signals to a terminal device through a PDSCH, the third signal and the fourth signal are both signals to be sent by the fourth TRP to the terminal device, or the third signal is a signal to be sent by the fifth TRP to the terminal device, and the fourth signal is a signal to be sent by the sixth TRP to the terminal device; Alternatively, the method is applied to a scenario where a single DCI schedules a multi-slot PDSCH, and the third signal and the fourth signal are carried on different PDSCHs; Alternatively, the method is applied to a transmission scenario based on repetition type B, and the third signal and the fourth signal are carried on different PDSCHs; Alternatively, the method is applied to a side link transmission scenario, and the third signal and the fourth signal are carried on different PSFCHs.

33. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions. When the program instructions are executed by a processor, the processor executes the method according to any one of claims 1 to 16.

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