Communication method and apparatus

Abstract

The present application provides a communication method and an apparatus. The method comprises: receiving first information, the first information being used for indicating a first physical resource, and the first physical resource being used for transmitting uplink information; and sending second information, the second information being used for indicating whether the uplink information is transmitted on the first physical resource. By means of the present application, the loss of data can be avoided or reduced, thereby reducing the packet loss rate, thus reducing the power consumption of terminal devices.

Description

Communication method and apparatus

[0001] This application claims priority from the Chinese patent application No. 202410451883.1 filed on April 15, 2024, and entitled "Communication method and apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, in particular to a communication method and apparatus. BACKGROUND

[0003] When the terminal device has uplink data to be sent, the terminal device sends a scheduling request (SR) to the network device. After the network device receives the SR, the network device sends a downlink control information (DCI) to the terminal device, the DCI is used to indicate uplink scheduling information (or uplink grant UL). After the terminal device receives the DCI, the terminal device transmits uplink data on the resource allocated by the network device. This process can be referred to as uplink scheduling.

[0004] Uplink basic pre-scheduling refers to that, in the case that there is remaining scheduling resource, the network device periodically allocates uplink resource to the terminal device regardless of whether the terminal device sends SR to the network device. Uplink intelligent pre-scheduling refers to that, when the core network has downlink data to be transmitted to the network device, the network device performs uplink grant for the terminal device, and has a certain timeliness. In the scenario of uplink basic pre-scheduling or uplink intelligent pre-scheduling, when the terminal device has no uplink data to be sent, the network device still allocates uplink resource to the terminal device. After the terminal device receives the uplink scheduling information of the network device, the terminal device needs to send a padding as a response to the uplink resource grant of the network device.

[0005] However, when the network device starts the uplink skipping mode, after the terminal device receives the uplink scheduling information of the network device, if the terminal device has no uplink data to send, the terminal device does not need to send a padding packet as a response to the uplink resource grant of the network device. Therefore, when the uplink skipping mode is started, if the network device does not receive the uplink information from the terminal device after performing the uplink grant, it cannot distinguish between the following two cases: the first case: the terminal device has no uplink data to send, and because the uplink skipping mode is started, the terminal device does not need to send a padding packet. The second case: the terminal device has uplink data to send and sends an uplink packet, but the network device does not detect the uplink packet due to channel or other reasons. Therefore, the network device cannot determine whether the terminal device needs to be scheduled for retransmission when it cannot distinguish between the above two cases, which may cause the problem of high packet loss rate. SUMMARY

[0006] The present application provides a communication method and device, which can avoid or reduce data loss, thereby reducing the packet loss rate and further reducing the power consumption of the terminal device.

[0007] In a first aspect, an embodiment of the present application provides a communication method, which includes: receiving first information, the first information being used to indicate a first physical resource, the first physical resource being used to transmit uplink information; and sending second information, the second information being used to indicate whether the uplink information is transmitted on the first physical resource.

[0008] As another possible communication method, the method includes: receiving first information, the first information being used to indicate a first physical resource, the first physical resource being used to transmit uplink information; and sending third information or fourth information, the third information being used to indicate that there is no uplink information on the first physical resource, and the fourth information being used to indicate that there is uplink information on the first physical resource.

[0009] The method can be applied to a first device, which can be a terminal device, a component (for example, a processor, a chip, or a chip system) in the terminal device, or a logic module or software that can realize all or part of the functions of the terminal device.

[0010] In the method, the second information is used to indicate whether the uplink information is transmitted on the first physical resource. If the first device does not need to send the uplink information on the first physical resource, the first device does not send padding on the position of the first physical resource, thereby saving the power consumption of the first device. Correspondingly, the second device does not monitor the uplink information on the position of the first physical resource, thereby saving the power consumption of the network. In addition, since the second device judges whether the uplink information is on the first physical resource by detecting the second information, the false detection rate is reduced, thereby improving the throughput performance of the system. Further, the second device can determine whether the first device transmits the uplink information based on the second information, thereby judging whether the first device needs to be scheduled for retransmission. For example, when the second device does not receive the uplink information on the first physical resource, the first device can be scheduled for retransmission, thereby avoiding or reducing the loss of data, reducing the packet loss rate, and further reducing the power consumption of the first device. Moreover, according to the present application, the first device can be ensured to send the empty packet under the premise of not increasing the false detection rate of the second device, thereby reducing the transmission power consumption of the first device and reducing the interference of the empty packet on other uplink information.

[0011] In a possible implementation, the second information is used to indicate whether the uplink information is transmitted on the first physical resource, including that the second information includes a first signal used to indicate that the uplink information is sent on the first physical resource, or the second information includes a second signal used to indicate that the uplink information is not sent on the first physical resource.

[0012] It can be understood that the second information includes the first signal, and the uplink information is sent on the first physical resource. The second information includes the second signal, and the uplink information is not sent on the first physical resource.

[0013] In the method, the second information is used to indicate whether the uplink information is transmitted on the first physical resource. If the first device does not need to send the uplink information on the first physical resource, the first device does not send padding on the position of the first physical resource, thereby saving the power consumption of the first device. Correspondingly, the second device does not monitor the uplink information on the position of the first physical resource, thereby saving the power consumption of the network. In addition, since the second device judges whether the uplink information is on the first physical resource by detecting the second information, the false detection rate is reduced, thereby improving the throughput performance of the system. Further, the second device can determine whether the first device transmits the uplink information based on the second information, thereby judging whether the first device needs to be scheduled for retransmission. For example, when the second device does not receive the uplink information on the first physical resource, the first device can be scheduled for retransmission, thereby avoiding or reducing the loss of data, reducing the packet loss rate, and further reducing the power consumption of the first device. Moreover, according to the present application, the first device can be ensured to send the empty packet under the premise of not increasing the false detection rate of the second device, thereby reducing the transmission power consumption of the first device and reducing the interference of the empty packet on other uplink information.

[0014] In another possible implementation, the first signal and / or the second signal is one or more of a demodulation reference signal DMRS, a sounding reference signal SRS, channel state information CSI, or a phase tracking reference signal PTRS. The first signal and the second signal are of the same signal type, and the first signal and the second signal are different in sequence or physical resource or port.

[0015] In the method, the first physical resource on which the uplink information is transmitted or not is indicated by using the reference signal or the channel state information, without increasing too much signaling overhead and without occupying additional time-frequency resources, thereby saving energy consumption of the first device and the second device.

[0016] In a further possible implementation, the first signal and the second signal are of the same type, and the first signal and the second signal are different in sequence or physical resource or port, including one or more of the following: the first signal is a first DMRS, and the second signal is a second DMRS; or, the first signal corresponds to a first DMRS port, and the second signal corresponds to a second DMRS port; or, the first signal and the second signal are both DMRSs, and the first signal and the second signal occupy different physical resources.

[0017] Optionally, the first DMRS and / or the first DMRS port are used to indicate that the uplink information is transmitted on the first physical resource; and the second DMRS and / or the second DMRS port are used to indicate that the uplink information is not transmitted on the first physical resource.

[0018] In the method, the second device configures the first device with a resource for transmitting a demodulation reference signal, and the first device transmits the demodulation reference signal, regardless of whether there is uplink information to be transmitted, so that the first physical resource on which the uplink information is transmitted or not is indicated by using the existing demodulation reference signal, without increasing too much signaling overhead and without occupying additional time-frequency resources, thereby saving energy consumption of the first device and the second device.

[0019] In a further possible implementation, the first signal and the second signal satisfy one or more of the following: the first signal and the second signal are different in frequency domain position; or, the first signal and the second signal are different in time domain position; or, the first signal and the second signal are different in sequence; or, the first signal and the second signal are different in port number; or, the first signal and the second signal are different in type.

[0020] In the method, the first signal and the second signal are different, so that whether the uplink information is transmitted on the first physical resource can be better distinguished. That is, whether the first device transmits the uplink information on the first physical resource is distinguished by the sequence, the port, the frequency domain position, etc., so that the resource utilization rate is improved, and when the first signal and the second signal are DMRSs, the DMRSs can be used not only for channel state measurement but also for indicating whether there is information on subsequent resources, thereby effectively improving the utilization rate of the first device transmission power and saving energy consumption of the first device.

[0021] In a further possible implementation, the method further includes determining a second physical resource according to the first physical resource and / or the second information, wherein the second physical resource is used for transmitting the first signal or the second signal.

[0022] In a further possible implementation, the method further includes determining the second signal according to a predefined rule; and / or, determining the second signal according to first indication information.

[0023] In a further possible implementation, the first signal is a first DMRS, the second signal is a second DMRS, the port corresponding to the first signal is a first DMRS port, and the port corresponding to the second signal is a second DMRS port, and the method further includes sending the first DMRS through the first DMRS port; or sending the second DMRS through the second DMRS port.

[0024] In the above method, the first DMRS sent through the first DMRS port can determine that uplink information is transmitted on the first physical resource; or the second DMRS sent through the second DMRS port can determine that uplink information is not transmitted on the first physical resource, so that the second device judges whether the first device needs to be scheduled for retransmission, avoiding or reducing data loss, thereby reducing the packet loss rate and further reducing the power consumption of the first device.

[0025] In a further possible implementation, the sending the first DMRS through the first DMRS port includes sending the first DMRS through the first DMRS port on the second physical resource, and sending the uplink information on the first physical resource; and the sending the second DMRS through the second DMRS port includes sending the second DMRS through the second DMRS port on the second physical resource, and not sending the uplink information on the first physical resource.

[0026] In a further possible implementation, the method further includes not sending a scheduling request within a time length T before receiving the first information.

[0027] In the above method, in this way, the execution process can be in the process of uplink basic pre-scheduling or uplink intelligent pre-scheduling. By being in the process of uplink basic pre-scheduling or uplink intelligent pre-scheduling, the second device judges whether the second information needs to be judged. If it is not in the process of uplink basic pre-scheduling or uplink intelligent pre-scheduling, the first device can only send the second information for channel measurement, or not send the second information, and uplink information will be sent on the first physical resource. At this time, the detection complexity and power consumption of the second device can be reduced, and the transmission power consumption of the first device can also be reduced.

[0028] In a further possible implementation, the second information comprises a first state indicating that the uplink information is transmitted on the first physical resource, or the second information comprises a second state indicating that the uplink information is not transmitted on the first physical resource.

[0029] It can be understood that the second information comprises the first state, and the uplink information is transmitted on the first physical resource; or the second information comprises the second state, and the uplink information is not transmitted on the first physical resource.

[0030] In a further possible implementation, the first state and the second state are carried in one or more of the following: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), a sequence, a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), uplink control information (UCI), or assistance information of the first device.

[0031] In a further possible implementation, the first state and the second state are carried through the same channel.

[0032] In a further possible implementation, the sending the second information comprises: sending the second information on a third physical resource, where a bandwidth of the third physical resource is less than or equal to a first threshold value, and / or a time of the third physical resource is less than or equal to a second threshold value.

[0033] Optionally, the first threshold value can be relatively small. By sending the second information on the third physical resource with a small bandwidth by the first device to the second device, a small amount of physical resources can be used to indicate whether the uplink information is transmitted on the first physical resource, thereby reducing the occupation of resources and saving the transmission power consumption of the first device.

[0034] In a further possible implementation, the method further includes: sending a third DMRS on a fourth physical resource, where the fourth physical resource is associated with the first physical resource, or the fourth physical resource is associated with the third physical resource.

[0035] In a further possible implementation, the second information comprises the first state, and the fourth physical resource is associated with the first physical resource; or the second information comprises the second state, and the fourth physical resource is associated with the third physical resource.

[0036] Optionally, when the second information comprises the first state, the third DMRS is used to measure the channel state corresponding to the first physical resource; and when the second information comprises the second state, the third DMRS is used to measure the channel state corresponding to the third physical resource, thereby improving the resource utilization.

[0037] In a second aspect, an embodiment of the present application provides a communication method, comprising: sending first information, the first information being used to indicate a first physical resource, the first physical resource being used to transmit uplink information; receiving second information; the second information comprising a first signal, uplink information being received on the first physical resource; the second information comprising a second signal, uplink information not being received on the first physical resource; or the second information comprising a first state, uplink information being received on the first physical resource; the second information comprising a second state, uplink information not being received on the first physical resource.

[0038] The method can be applied to a second device, which can be a network device, a component (for example, a processor, a chip, or a chip system, etc.) in the network device, or a logic module or software capable of realizing all or part of the network device functions.

[0039] In the above method, by receiving the second information to indicate whether the uplink information is transmitted on the first physical resource, if the first device does not need to send the uplink information on the first physical resource, the first device does not send a padding on the position of the first physical resource, saving the power consumption of the first device, and correspondingly, the second device does not monitor the uplink information on the position of the first physical resource, saving the network power consumption. In addition, since the second device judges whether there is uplink information on the first physical resource by detecting the second information, the false detection rate is reduced, thereby improving the throughput performance of the system. Further, the second device can determine whether the first device transmits the uplink information based on the second information, thereby judging whether the first device needs to be scheduled for retransmission, for example, when the second device does not receive the uplink information on the first physical resource, the first device can be scheduled for retransmission, avoiding or reducing the loss of data, thereby reducing the packet loss rate, and further reducing the power consumption of the first device. Moreover, through the present application, the first device can be ensured to reduce the sending of empty packets without increasing the false detection rate of the second device, thereby reducing the sending power consumption of the first device, and reducing the interference of the empty packets on other uplink information.

[0040] In a possible implementation, the first signal and / or the second signal is one or more of the following: a demodulation reference signal (DMRS), a sounding reference signal (SRS), channel state information (CSI), or a phase tracking reference signal (PTRS); wherein the first signal and the second signal are of the same signal type, and the first signal and the second signal are different in sequence or physical resource or port.

[0041] In the above method, by using the above reference signal or channel state information to indicate whether the uplink information is transmitted on the first physical resource, the signaling overhead can be increased without increasing too much, and the time-frequency resources are not additionally occupied, thereby saving the energy consumption of the first device and the second device.

[0042] In a further possible implementation, the first signal and the second signal are of the same type, and the first signal and the second signal are different in sequence or physical resource or port, including one or more of the following: the first signal is a first DMRS, and the second signal is a second DMRS; or, the first signal corresponds to a first DMRS port, and the second signal corresponds to a second DMRS port; or, the first signal and the second signal are both DMRSs, and the first signal and the second signal occupy different physical resources.

[0043] Optionally, the first DMRS and / or the first DMRS port are used to indicate that the uplink information is transmitted on the first physical resource, and the second DMRS and / or the second DMRS port are used to indicate that the uplink information is not transmitted on the first physical resource.

[0044] In the above method, the second device configures the resource for transmitting the demodulation reference signal for the first device regardless of whether there is uplink information to be transmitted, and the first device transmits the demodulation reference signal, so that, by using the existing demodulation reference signal to indicate whether the uplink information is transmitted on the first physical resource, no additional signaling overhead is increased, no additional time-frequency resource is occupied, and the energy consumption of the first device and the second device is saved.

[0045] In a further possible implementation, the first signal and the second signal satisfy one or more of the following: the first signal and the second signal are different in frequency domain position; or, the first signal and the second signal are different in time domain position; or, the first signal and the second signal are different in sequence; or, the first signal and the second signal are different in port number; or, the first signal and the second signal are different in type.

[0046] In the above method, by virtue of the difference between the first signal and the second signal, whether the uplink information is transmitted on the first physical resource can be better distinguished. That is, by virtue of the difference between the sequences of the signals, the difference between the ports of the signals, or the difference between the frequency domain positions of the signals, whether the first device transmits the uplink information on the first physical resource can be distinguished, so that the resource utilization rate is improved, and when the first signal and the second signal are DMRSs, the DMRSs can be used not only for channel state measurement but also for indicating whether there is information on subsequent resources, so that the utilization rate of the transmission power of the first device is effectively improved, and the first device is facilitated to save energy.

[0047] In a further possible implementation, the first signal is a first DMRS, the second signal is a second DMRS, the first signal corresponds to a first DMRS port, and the second signal corresponds to a second DMRS port, and the method further includes: receiving the first DMRS through the first DMRS port; or, receiving the second DMRS through the second DMRS port.

[0048] In the method, the first DMRS received through the first DMRS port can determine that the uplink information is transmitted on the first physical resource; or the second DMRS received through the second DMRS port can determine that the uplink information is not transmitted on the first physical resource, so that the second device judges whether the first device needs to be scheduled for retransmission, thereby avoiding or reducing data loss, reducing the packet loss rate, and further reducing the power consumption of the first device.

[0049] In another possible implementation, the first DMRS is received through the first DMRS port, including: the first DMRS is received through the first DMRS port on the second physical resource, and the uplink information is received on the first physical resource; and the second DMRS is received through the second DMRS port, including: the second DMRS is received through the second DMRS port on the second physical resource, and the uplink information is not received on the first physical resource.

[0050] In another possible implementation, the first state and the second state are carried in one or more of the following: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), a sequence, a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), uplink control information (UCI), or auxiliary information of the first device.

[0051] In another possible implementation, the first state and the second state are carried through the same channel.

[0052] In another possible implementation, the second information is received on a third physical resource, and a bandwidth of the third physical resource is less than or equal to a first threshold value; and / or a time of the third physical resource is less than or equal to a second threshold value.

[0053] Optionally, the first threshold value can be relatively small. By receiving the second information on the third physical resource with a small bandwidth through the second device, a small amount of physical resources can be used to indicate whether the uplink information is transmitted on the first physical resource, thereby reducing the occupation of resources and saving the transmission power consumption of the first device.

[0054] In another possible implementation, the method further includes: receiving a third DMRS on a fourth physical resource, wherein the fourth physical resource is associated with the first physical resource, or the fourth physical resource is associated with the third physical resource.

[0055] In another possible implementation, the second information includes the first state, and the fourth physical resource is associated with the first physical resource; or the second information includes the second state, and the fourth physical resource is associated with the third physical resource.

[0056] Optionally, when the second information comprises the first state, the third DMRS is used to measure the channel state corresponding to the first physical resource; and when the second information comprises the second state, the third DMRS is used to measure the channel state corresponding to the third physical resource, thereby improving resource utilization.

[0057] In a third aspect, an embodiment of the present application provides a first device, which can be a terminal device, a component (for example, a processor, a chip, or a chip system, etc.) in the terminal device, or a logic module or software capable of realizing all or part of the terminal device functions.

[0058] In a possible implementation, the first device can include a module or unit corresponding to each of the methods / operations / steps / actions described in the first aspect, which can be a hardware circuit, software, or a combination of hardware circuit and software.

[0059] In a possible implementation, the first device includes a processing unit and a transceiver unit, the transceiver unit being configured to receive first information, the first information being used to indicate a first physical resource, the first physical resource being used to transmit uplink information; and the transceiver unit being configured to send second information, the second information being used to indicate whether the uplink information is transmitted on the first physical resource.

[0060] In a possible implementation, the second information being used to indicate whether the uplink information is transmitted on the first physical resource includes that the second information comprises a first signal, the first signal being used to indicate that the uplink information is sent on the first physical resource; or the second information comprises a second signal, the second signal being used to indicate that the uplink information is not sent on the first physical resource.

[0061] In another possible implementation, the first signal and / or the second signal is one or more of a demodulation reference signal (DMRS), a sounding reference signal (SRS), channel state information (CSI), or a phase tracking reference signal (PTRS); wherein the first signal and the second signal are of the same signal type, and the first signal and the second signal are different in sequence or physical resource or port.

[0062] In another possible implementation, the first signal and the second signal are of the same signal type, and the first signal and the second signal are different in sequence or physical resource or port, including one or more of the following: the first signal is a first DMRS, and the second signal is a second DMRS; or a port corresponding to the first signal is a first DMRS port, and a port corresponding to the second signal is a second DMRS port; or the first signal and the second signal are both DMRSs, and the first signal and the second signal occupy different physical resources.

[0063] In a further possible implementation, the first signal and the second signal satisfy one or more of the following: the first signal and the second signal are different in frequency domain position; or, the first signal and the second signal are different in time domain position; or, the first signal and the second signal are different in sequence; or, the first signal and the second signal are different in port number; or, the first signal and the second signal are different in type.

[0064] In a further possible implementation, the processing unit is further configured to determine a second physical resource according to the first physical resource and / or the second information, wherein the second physical resource is used to transmit the first signal or the second signal.

[0065] In a further possible implementation, the processing unit is further configured to determine the second signal according to a predefined rule; and / or, determine the second signal according to the first indication information.

[0066] In a further possible implementation, the first signal is a first DMRS, the second signal is a second DMRS, the port corresponding to the first signal is a first DMRS port, and the port corresponding to the second signal is a second DMRS port, the transceiver is further configured to transmit the first DMRS through the first DMRS port; or, transmit the second DMRS through the second DMRS port.

[0067] In a further possible implementation, the transceiver is configured to transmit the first DMRS through the first DMRS port on the second physical resource, and transmit the uplink information on the first physical resource; and transmit the second DMRS through the second DMRS port on the second physical resource, and not transmit the uplink information on the first physical resource.

[0068] In a further possible implementation, the transceiver is configured to not transmit a scheduling request within a time length T before receiving the first information.

[0069] In a further possible implementation, the second information includes a first state, the first state being used to indicate that the uplink information is transmitted on the first physical resource; or the second information includes a second state, the second state being used to indicate that the uplink information is not transmitted on the first physical resource.

[0070] In a further possible implementation, the first state and the second state are carried in one or more of the following, which include: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), a sequence, a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), uplink control information (UCI), or auxiliary information of a terminal device.

[0071] In a further possible implementation form of the first aspect or possible implementation form thereof, the first state and the second state are carried over the same channel.

[0072] In a further possible implementation form of the first aspect or possible implementation form thereof, the transceiver is configured to transmit the second information on a third physical resource, wherein a bandwidth of the third physical resource is less than or equal to a first threshold value; and / or a time of the third physical resource is less than or equal to a second threshold value.

[0073] In a further possible implementation form of the first aspect or possible implementation form thereof, the transceiver is configured to transmit a third DMRS on a fourth physical resource, wherein the fourth physical resource is associated with the first physical resource, or the fourth physical resource is associated with the third physical resource.

[0074] In a further possible implementation form of the first aspect or possible implementation form thereof, the second information comprises the first state, and the fourth physical resource is associated with the first physical resource; or the second information comprises the second state, and the fourth physical resource is associated with the third physical resource.

[0075] As to the technical effects brought by the third aspect or possible implementation forms, reference can be made to the introduction of the technical effects of the first aspect or corresponding implementation forms.

[0076] According to a fourth aspect, an embodiment of the present application provides a second apparatus, which can be a network device, a component (for example, a processor, a chip, or a chip system, etc.) in the network device, or a logic module or software capable of realizing all or part of the network device functions.

[0077] In a possible implementation, the second apparatus can include a one-to-one corresponding module or unit for performing the method / operation / step / action described in the second aspect, which can be a hardware circuit, software, or a combination of hardware circuit and software.

[0078] In a possible implementation, the second apparatus includes a processing unit and a transceiver, the processing unit is configured to transmit first information through the transceiver, the first information is used to indicate a first physical resource, the first physical resource is used to transmit uplink information; the transceiver is configured to receive second information; the second information includes a first signal, uplink information is received on the first physical resource; the second information includes a second signal, uplink information is not received on the first physical resource; or the second information includes a first state, uplink information is received on the first physical resource; the second information includes a second state, uplink information is not received on the first physical resource.

[0079] In a possible implementation, the first signal and / or the second signal is one or more of: a demodulation reference signal (DMRS), a sounding reference signal (SRS), channel state information (CSI), or a phase tracking reference signal (PTRS); wherein the first signal and the second signal are of the same type, and the first signal and the second signal are different in sequence or physical resource or port.

[0080] In another possible implementation, the first signal and the second signal are of the same type, and the first signal and the second signal are different in sequence or physical resource or port, including one or more of: the first signal is a first DMRS, and the second signal is a second DMRS; or, the first signal corresponds to a first DMRS port, and the second signal corresponds to a second DMRS port; or, the first signal and the second signal are both DMRSs, and the first signal and the second signal occupy different physical resources.

[0081] In another possible implementation, the first signal and the second signal satisfy one or more of: different frequency domain positions, different time domain positions, different sequences, different port numbers, or different types.

[0082] In another possible implementation, the first signal is a first DMRS, the second signal is a second DMRS, the first signal corresponds to a first DMRS port, and the second signal corresponds to a second DMRS port, and the transceiver is further configured to receive the first DMRS through the first DMRS port; or receive the second DMRS through the second DMRS port.

[0083] In another possible implementation, the transceiver is configured to receive the first DMRS through the first DMRS port on the second physical resource, and receive the uplink information on the first physical resource; and the transceiver is configured to receive the second DMRS through the second DMRS port on the second physical resource, and not receive the uplink information on the first physical resource.

[0084] In another possible implementation, the first state and the second state are carried in one or more of: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), a sequence, a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), uplink control information (UCI), or auxiliary information of the terminal device.

[0085] In yet another possible implementation, the first state and the second state are carried over the same channel.

[0086] In yet another possible implementation, the transceiver is further configured to receive the second information on a third physical resource, a bandwidth of the third physical resource being less than or equal to a first threshold value; and / or a time of the third physical resource being less than or equal to a second threshold value.

[0087] In yet another possible implementation, the transceiver is further configured to receive a third DMRS on a fourth physical resource, wherein the fourth physical resource is associated with the first physical resource, or the fourth physical resource is associated with the third physical resource.

[0088] In yet another possible implementation, the second information comprises the first state, and the fourth physical resource is associated with the first physical resource; or the second information comprises the second state, and the fourth physical resource is associated with the third physical resource.

[0089] As to the technical effects brought by the fourth aspect or possible implementation, reference can be made to the introduction of the technical effects of the second aspect or corresponding implementation.

[0090] In the fifth aspect, an embodiment of the present application provides a first device, which comprises at least one processor configured to execute the method of the first aspect or possible implementation of the first aspect.

[0091] In a possible implementation, the first device further comprises a communication interface.

[0092] In a possible implementation, the at least one processor invokes a computer program or instruction stored in a memory to execute the method of the first aspect or possible implementation of the first aspect. The memory can be included in the first device. Alternatively, the memory and the processor are integrated together. Or, the memory can be located outside the first device.

[0093] In the sixth aspect, an embodiment of the present application provides a second device, which comprises at least one processor configured to execute the method of the second aspect or possible implementation of the second aspect.

[0094] In a possible implementation, the second device further comprises a communication interface.

[0095] In a possible implementation, the at least one processor invokes a computer program or instructions stored in a memory to perform the method in the second aspect or possible implementation of the second aspect. The memory can be included in the second device. Alternatively, the memory and the processor are integrated together. Alternatively, the memory can be located outside the second device.

[0096] In a seventh aspect, an embodiment of the present application provides a chip device, which includes at least one processor configured to execute computer programs or instructions to implement the method in any of the aspects or possible implementation of any of the aspects.

[0097] In a possible implementation, an input of the chip device corresponds to the receiving operation in the method in any of the aspects or possible implementation of any of the aspects, and an output of the chip device corresponds to the sending operation in the method in any of the aspects or possible implementation of any of the aspects.

[0098] Optionally, the processor is coupled with the memory through an interface.

[0099] Optionally, the chip device further includes a memory in which computer program instructions are stored.

[0100] In an eighth aspect, an embodiment of the present application provides a computer readable storage medium, which stores computer programs or instructions, when the computer programs or instructions are run on a processor, to implement the method in any of the aspects or possible implementation of any of the aspects.

[0101] In a ninth aspect, an embodiment of the present application provides a computer program product, which includes computer programs or instructions, when the computer programs or instructions are run on a computer, to implement the method in any of the aspects or possible implementation of any of the aspects.

[0102] In a tenth aspect, an embodiment of the present application provides a communication system, which includes a first device and a second device. BRIEF DESCRIPTION OF DRAWINGS

[0103] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present application;

[0104] FIG. 2 is a schematic diagram of uplink scheduling;

[0105] FIG. 3 is a schematic diagram of type 1 single-symbol DMRS;

[0106] FIG. 4 is a schematic diagram of type 1 double-symbol DMRS;

[0107] FIG. 5 is a flowchart of a communication method according to an embodiment of the present application;

[0108] FIG. 6 is a schematic diagram of a first DMRS port and a second DMRS port according to an embodiment of the present application;

[0109] FIG. 7 is a schematic diagram of uplink scheduling according to an embodiment of the present application;

[0110] FIG. 8 is a schematic diagram of a first state and a second state according to an embodiment of the present application;

[0111] FIG. 9 is a schematic diagram of a first state and a second state according to another embodiment of the present application;

[0112] FIG. 10 is a schematic diagram of a communication method according to another embodiment of the present application;

[0113] FIG. 11 is a schematic diagram of a communication apparatus according to an embodiment of the present application;

[0114] FIG. 12 is a schematic diagram of a communication apparatus according to another embodiment of the present application. DETAILED DESCRIPTION

[0115] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, any other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0116] In the present application, the reference to “one embodiment” or “some embodiments” means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements “in one embodiment”, “in some embodiments”, “in other some embodiments”, “in further some embodiments” and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean “one or more but not all embodiments”, unless otherwise specifically emphasized. The terms “include”, “contain”, “have” and their variants mean “include but not limited to”, that is, it is intended to cover the non-exclusive inclusion, unless otherwise specifically emphasized, for example, the process / method including a series of steps, or the system / product / device including a series of units, which is not necessarily limited to the clearly listed steps or units, but can include other steps or units not clearly listed or inherent to the process / method / product / device.

[0117] In the description of the present application, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" herein is only a description of the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean: A exists alone, A and B exist together, and B exists alone. In addition, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions means any combination of the items, including any combination of single or multiple items. For example, at least one of a, b and (or) c can mean one of the following: a exists alone; b exists alone; c exists alone; a and b exist together; a and c exist together; b and c exist together; a, b and c exist together. Where a, b, c can be single or multiple. In the description of the present application, the number of nouns means "singular noun or plural noun", that is, "one or more". "At least one" means one or more.

[0118] It can be understood that in the present application, "indication" can include direct indication, indirect indication, display indication, implicit indication. When describing that certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0119] In the present application, the information indicated by the indication information is referred to as the to-be-indicated information. In the specific implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or the index of the to-be-indicated information, or the to-be-indicated information can be indirectly indicated by indicating other information, wherein the other information and the to-be-indicated information have an association relationship. It can also only indicate part of the to-be-indicated information, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of each information agreed in advance (for example, the protocol stipulates), thereby reducing the indication overhead to a certain extent.

[0120] The to-be-indicated information can be sent as a whole, or can be sent separately into multiple sub-information, and the sending period and / or sending occasion of the sub-information can be the same or different. The specific sending method is not limited by the present application. Wherein the sending period and / or sending occasion of the sub-information can be pre-defined, for example, pre-defined according to the protocol, or can be configured by the transmitting end device by sending configuration information to the receiving end device.

[0121] In this application, "transmission" can include the following cases: data sending, data receiving, or data sending and data receiving, signal sending, signal receiving, or signal sending and signal receiving. In this application, "data" can include service data and / or signaling data. It can be understood that "sending" and "receiving" in this application represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, and also includes indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, and also includes indirect receiving from YY through the air interface by other units or modules. "Sending" can also be understood as "output" of a chip interface, and "receiving" can also be understood as "input" of a chip interface.

[0122] In other words, sending and receiving can be between devices, such as between network devices and terminal devices, or can be within a device, such as between components, modules, chips, software modules or hardware modules within a device through a bus, wire or interface.

[0123] It can be understood that the information between the source and the destination of the information transmission can be processed as necessary, such as encoding, modulation, etc., but the destination can understand the valid information from the source. Similar expressions in this application can be similarly understood and will not be repeated.

[0124] The communication method provided by the embodiments of the present application can be applied to a third generation partnership project (3rd generation partnership project, 3GPP) related cellular communication system, for example, a fourth generation (4th generation, 4G) communication system, such as a long term evolution (long term evolution, LTE) communication system, and can also be applied to a fifth generation (5th generation, 5G) communication system, such as a 5G new radio (new radio, NR) communication system, or a future various communication system, such as a sixth generation (6th generation, 6G) communication system. The method provided by the embodiments of the present application can also be applied to a Bluetooth system, a wireless fidelity (wireless fidelity, WiFi) system, a LoRa system or a vehicle-to-everything (vehicle-to-everything, V2X) system, a communication system supporting multiple wireless technology fusion, a device-to-device (device-to-device, D2D) system. The method provided by the embodiments of the present application can also be applied to a satellite communication system, which can be integrated with the above communication systems. The wireless communication system involved in the present application also includes but is not limited to: a narrow band internet of things (narrow band-internet of things, NB-IoT) system, a global system for mobile communications (global system for mobile communications, GSM) system, an enhanced data rate for GSM evolution (enhanced data rate for GSM evolution, EDGE) system, a wideband code division multiple access (wideband code division multiple access, WCDMA) system, a code division multiple access (code division multiple access, CDMA2000) system, or a time division-synchronous code division multiple access (time division-synchronization code division multiple access, TD-SCDMA) system.

[0125] Please refer to FIG. 1, which is a schematic diagram of an architecture of a communication system according to an embodiment of the present application. The architecture of the communication system shown in FIG. 1 is used to illustrate the application scenario of the present application. The communication system includes a first device and a second device. The first device is a terminal device 102, and the second device is a network device 101. It should be understood that the communication system to which the method of the present application can be applied can include more or fewer network devices or terminal devices. The network device and the terminal device can be hardware, software functionally divided, or a combination of the two. The network device and the terminal device can communicate through other devices or network elements. In the system, the network device 101 can perform data transmission with multiple terminal devices, that is, the network device 101 sends downlink data to the terminal device 102. Of course, the terminal device 102 can also send uplink data to the network device 101. The device provided by the present application can be applied to the network device 101 or the terminal device 102. It should be understood that FIG. 1 only shows one possible communication system architecture to which the present application can be applied. In other possible scenarios, other devices can also be included in the communication system architecture. The network device 101 can be any one of the example network devices described below. The terminal device 102 can be any one of the example terminal devices described below.

[0126] 1) The network device is a device deployed in a wireless access network to provide wireless communication functions for terminal devices. The network device can also be referred to as a radio access network (RAN) entity, an access node, a network node, or a communication device, etc.

[0127] Specifically, the network device can be an access network device of a 3rd generation partnership project (3GPP) related cellular system. For example, a fourth-generation (4G) mobile communication system or a 5G mobile communication system. The network device can also be an access network device in an open RAN (O-RAN or ORAN) or a cloud radio access network (CRAN). Alternatively, the network device can also be an access network device in a communication system obtained by integrating two or more of the above communication systems.

[0128] The network device includes, but is not limited to, an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home evolved NodeB or home Node B (HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WiFi) system, a macro base station, a micro base station, a wireless relay node, a donor node, a wireless controller in a CRAN scenario, a wireless backhaul node, a transmission point (TP), or a transmission and receiving point (TRP). The network device can also be an access network device in a 5G mobile communication system. For example, a next generation NodeB (gNB), a TRP, a TP in a new radio (NR) system, or one or a group (including multiple antenna panels) of antenna panels of a base station in a 5G mobile communication system. Alternatively, the network device can also be a network node constituting a gNB or a transmission point. For example, a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged or included in the same network element. For example, a BBU. The RU can be included in a radio frequency device or a radio frequency unit. For example, in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). Alternatively, the network device can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, in V2X technology, the network device can be a road side unit (RSU).

[0129] It should be noted that in different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be referred to as an open centralized unit (O-CU) or an open CU, the DU can also be referred to as an open distributed unit (O-DU), the centralized unit control plane (CU-CP) can also be referred to as an open centralized unit control plane (O-CU-CP) or an open CU-CP, the centralized unit user plane (CU-UP) can also be referred to as an open centralized unit user plane (O-CU-UP) or an open CU-UP, and the RU can also be referred to as an open radio unit (O-RU), which is not limited in the present application. Any one of the CU, CU-CP, CU-UP, DU and RU in the present application can be realized by a software module, a hardware module, or a combination of a software module and a hardware module.

[0130] In some deployments, the CU implements part of the functions of the gNB, and the DU implements part of the functions of the gNB, for example, the CU implements the functions of the radio resource control (RRC) and the packet data convergence protocol (PDCP) layer, and the DU implements the functions of the radio link control (RLC), the media access control (MAC) and the physical (PHY) layer. Since the information of the RRC layer eventually becomes the information of the PHY layer, or is transformed from the information of the PHY layer, under this architecture, high-layer signaling such as RRC layer signaling or PHCP layer signaling can also be considered to be sent by the DU, or sent by the DU+RU. It can be understood that the network device can be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into a network device in the access network RAN, or the CU can be divided into a network device in the core network CN, which is not limited here.

[0131] Optionally, the network device can also be a core network device. The core network device is responsible for access control, registration management, service management, mobility management and the like of terminal device accessing the network. For example, the core network device is an AMF.

[0132] Optionally, the network device can also be a perception device, a communication perception device, an artificial intelligence computing device.

[0133] It should be noted that the network device can be the device or apparatus shown above, or a component (for example, a chip), a module or a unit in the device or apparatus shown above, and the specific application does not limit it.

[0134] 2) terminal device, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device providing voice or data connectivity to a user, specifically, a device providing voice to a user, or a device providing data connectivity to a user, or a device providing voice and data connectivity to a user. For example, it can include a handheld device with wireless connection function, or a processing device connected to a wireless modem. The terminal device can communicate with a core network via a radio access network (RAN), exchange voice or data with the RAN, or interact voice and data with the RAN. Currently, the terminal device can be: a mobile phone, a tablet computer, a notebook computer, a palm computer, a mobile internet device (MID), a wearable device (such as a smart watch, a smart bracelet, a pedometer, etc.), a vehicle-mounted device (such as a car, a bicycle, an electric vehicle, an airplane, a ship, a train, a high-speed rail, etc.), a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a smart home device (such as a refrigerator, a television, an air conditioner, an electricity meter, etc.), a smart robot, a workshop device, a wireless terminal in unmanned driving, a wireless terminal in remote surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, or a wireless terminal in smart home, a flight device (such as a smart robot, a hot air balloon, a drone, an airplane), etc. The terminal device can also be other devices with terminal functions, for example, the terminal device can also be a device with terminal functions in D2D communication.The terminal device can also be a vehicle to everything (V2X) terminal device, a machine to machine / machine-type communications (M2M / MTC) terminal device, an internet of things (IoT) terminal device, a light terminal device, a reduced capability UE (REDCAP UE), a subscriber unit, a subscriber station, a mobile station, a remote station, an access point (AP), a remote terminal, an access terminal, a user terminal, a user agent, or a user device, a drone device, etc. For example, it can include a mobile phone (or called "cellular" phone), a computer with a mobile terminal device, a portable, pocket, handheld, built-in computer, etc. For example, it can include a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), etc. It can also include a limited device, such as a device with low power consumption, a device with limited storage capacity, a device with limited computing capacity, etc. For example, it can include a bar code, a radio frequency identification (RFID), a sensor, a global positioning system (GPS), a laser scanner, etc. In this application, a terminal device with wireless transceiver function and a chip that can be arranged in the terminal device are collectively referred to as a terminal device.

[0135] Optionally, the terminal device can also be a sensing device, a communication sensing device, an artificial intelligence computing device.

[0136] It should be noted that the terminal device can be a device or apparatus with a chip, or a device or apparatus integrated with a circuit, or a chip, module or control unit in the above-mentioned devices or apparatus, and the specific application is not limited.

[0137] In order to better understand the scheme provided by the embodiments of the present application, the following will first introduce some terms, concepts or processes related to the embodiments of the present application.

[0138] I. Uplink scheduling

[0139] Dynamic uplink scheduling is triggered by a scheduling request (SR), which is a flag for a terminal device to request an uplink resource from an uplink scheduler of a network device. Since the terminal device requesting the resource has no physical uplink shared channel (PUSCH) resource, the terminal device can use a pre-configured dedicated periodic physical uplink control channel (PUCCH) resource to send the SR to the network device. When there is uplink data to be sent, the terminal device sends the SR to request the network device to allocate the required resource and scheduling information for uplink transmission, please refer to FIG. 2, which is a schematic diagram of uplink scheduling, as follows: when there is uplink data to be sent, the terminal device sends the SR to the network device, which is used to request the uplink grant from the network device, wherein the SR only indicates to the network device that there is uplink data transmission, and does not carry information about how much data the terminal device needs to transmit; after receiving the SR, the network device sends downlink control information (DCI) to the terminal device, which is used to indicate uplink scheduling information (or uplink grant UL grant), at this time the network device will schedule the terminal device according to a small and fixed data amount; after receiving the DCI, the terminal device sends the PUSCH to the network device, which carries the data to be transmitted, and reports the buffer status report (BSR) and the power headroom report (PHR) information, the BSR is used to indicate how much data needs to be sent, and the PHR is used to indicate the current power headroom. Optionally, if the BSR received by the network device is greater than 0, the network device will continue to schedule the terminal device, that is, the scheduling information is indicated to the terminal device again through the DCI; the terminal device completes the data transmission on the resource allocated by the network device.

[0140] II. Uplink pre-scheduling

[0141] In order to reduce the latency, the network device initiates uplink scheduling to the terminal device, that is, whether the terminal device sends SR to the network device or not, the network device initiates scheduling to the terminal device every certain period of time, thereby reducing the time from sending SR by the terminal device to obtaining uplink scheduling authorization. The uplink pre-scheduling includes two modes of uplink basic pre-scheduling and uplink intelligent pre-scheduling.

[0142] The uplink basic pre-scheduling refers to that, in the case that there is remaining scheduling resource, the network device periodically allocates uplink resource to the terminal device regardless of whether the terminal device sends SR to the network device. After the uplink basic pre-scheduling is turned on, the transmission latency of small packet service can be reduced, but when the terminal device has no uplink data to send, the network device still allocates uplink resource to the terminal device. After receiving the DCI of the network device, the terminal device needs to send padding as a response to the uplink resource authorization of the network device.

[0143] Since the network device still periodically authorizes the uplink of the terminal device when the terminal device has no uplink data to send in the uplink basic pre-scheduling, the uplink resource is wasted and the power consumption of the terminal device is wasted. In order to reduce the waste of the uplink basic pre-scheduling and reduce the uplink latency, the uplink intelligent pre-scheduling is introduced.

[0144] The uplink intelligent pre-scheduling refers to that the network device authorizes the uplink of the terminal device only when the core network has downlink data to transmit to the network device, and has a certain timeliness, so that the overhead can be effectively reduced, the power consumption of the terminal device can be reduced, and the uplink interference to other users can be reduced.

[0145] However, even for the uplink intelligent pre-scheduling, there is still a problem that the network device sends uplink authorization to the terminal device when there is no uplink scheduling demand, which causes a large amount of resource waste and power consumption waste.

[0146] Three, demodulation reference signal (DMRS)

[0147] The DMRS is a reference signal used for channel estimation, and the orthogonal multiplexing of multiple DMRS ports can be realized through frequency-division multiplexing (FDM), time-division multiplexing (TDM) and code-division multiplexing (CDM).

[0148] FDM refers to distinguishing different DMRS ports through different frequency domain positions: the carrier bandwidth is divided into different frequency band subchannels, and each user can simultaneously transmit the respective signals in different subchannels. It can be seen that all users of frequency division multiplexing occupy different bandwidth resources at the same time.

[0149] TDM refers to distinguishing different DMRS ports through different time domain positions: different channels are divided according to time, and each user occupies the same frequency bandwidth at different times.

[0150] CDM refers to distinguishing different DMRS ports through different codes: each user can use the same frequency band for communication at the same time, and different codes are selected for each user, so that the users do not interfere with each other. Commonly, orthogonal cover code (OCC) is used to realize code division multiplexing.

[0151] DMRS is divided into type 1 DMRS and type 2 DMRS, as well as enhanced type 1 DMRS and enhanced type 2 DMRS. The type 1 DMRS is described in detail below, and the other types of DMRS are the same.

[0152] Please refer to FIG. 3, which is a schematic diagram of a type 1 single-symbol DMRS. As shown in FIG. 3, in the frequency domain, a DMRS sequence is mapped on every other subcarrier, that is, up to 2 orthogonal DMRS ports are multiplexed through FDM in the frequency domain. It should be noted that the DMRS signals mapped on the same subcarrier are referred to as belonging to the same CDM group, for example, port 1000 and port 1001 belong to CDM group 0, and port 1002 and port 1003 belong to CDM group 1. Different ports in the same CDM group are orthogonal through code division multiplexing.

[0153] In the code domain, OCC with a length of 2 can be supported, and up to 2 orthogonal DMRS ports can be multiplexed through code division multiplexing. OCC with a length of 4 can also be supported, and up to 4 orthogonal DMRS ports can be multiplexed through code division multiplexing. Taking OCC with a length of 2 as an example, the orthogonal codes of port 1000 mapped on the corresponding REs in 1 RB are {+1, +1, +1, +1, +1, +1} in turn, and the orthogonal codes of port 1001 mapped on each RE in 1 RB are {+1, -1, +1, -1, +1, -1} in turn. At this time, port 1000 and port 1001 are orthogonal in the code domain.

[0154] Please refer to FIG. 4, which is a schematic diagram of type 1 double-symbol DMRS. In the time domain, DMRS supports single-symbol and double-symbol configuration modes, and can realize multiplexing of up to 2 orthogonal DMRS ports through TD-OCC. For example, for four ports 1000, 1001, 1004 and 1005 in the same CDM group 0, the orthogonal codes mapped on the corresponding REs in 1 RB on the first and second OFDM symbols are shown in Table 1:

[0155] Table 1

[0156] Therefore, type 1 single-symbol DMRS supports multiplexing of up to 4 orthogonal ports (FDM and FD-OCC), and type 1 double-symbol DMRS supports multiplexing of up to 8 orthogonal ports (FDM, FD-OCC and TD-OCC). Different orthogonal ports can be allocated to the same user or different users for channel measurement.

[0157] Other types of DMRS multiplexing modes are similar to type 1 double-symbol DMRS, and will not be described herein.

[0158] When the network device enables the uplink skipping (UL skipping) mode, in the scenario of uplink basic pre-scheduling or uplink intelligent pre-scheduling, after the terminal device receives the uplink scheduling information of the network device, if the terminal device has no uplink data to send, the terminal device does not need to send a padding packet as a response to the uplink resource authorization of the network device. Therefore, when the UL skipping mode is enabled, if the network device does not receive the uplink information from the terminal device after performing uplink authorization, it cannot distinguish between the following two cases: the first case: the terminal device has no uplink data to send, and does not need to send a padding packet due to the enabled UL skipping mode. The second case: the terminal device has uplink data to send and sends an uplink packet, but the network device does not detect the uplink packet due to channel or other reasons. Therefore, the network device cannot determine whether the terminal device needs to be scheduled for retransmission in the case where it cannot distinguish between the above two cases, which may cause a high packet loss rate. In order to solve the above problem, the embodiments of the present application propose the following scheme.

[0159] Please refer to FIG. 5, which is a flowchart of a communication method provided by an embodiment of the present application. The method includes but is not limited to the following steps:

[0160] Step S501: The second device sends first information. Correspondingly, the first device receives the first information.

[0161] The first device is a terminal device, or a component (e.g., a processor, a chip, or a chip system, etc.) in the terminal device, or a logic module or software capable of realizing all or part of the terminal device functions. The second device is a network device, or a component (e.g., a processor, a chip, or a chip system, etc.) in the network device, or a logic module or software capable of realizing all or part of the network device functions.

[0162] The second device sends the first information to the first device, and correspondingly, the first device receives the first information from the second device.

[0163] The first information is DCI. Optionally, the DCI is used to indicate uplink scheduling information (or uplink grant, UL grant). Alternatively, the first information is radio resource control (RRC) indication information, or medium access control-control element (MAC CE) indication information.

[0164] The first information is used to indicate a first physical resource. The first information includes at least one of the following: a bandwidth part indicator, a frequency domain resource assignment, or a time domain resource assignment. The fields bandwidth part indicator and frequency domain resource assignment are used to indicate the frequency domain resource corresponding to the first physical resource. The field time domain resource assignment is used to indicate the time domain resource corresponding to the first physical resource.

[0165] The first physical resource is used to transmit uplink information. The first physical resource refers to one or more of the following: a time-frequency resource, a time domain resource, or a frequency domain resource. The uplink information refers to data or a signal or a channel. For example, the uplink information can be PUSCH, or a physical random access channel (PRACH), or PUCCH, or data carried by PUSCH, or information carried by PUCCH, or information carried by PRACH, or feedback information. The first physical resource is a resource scheduled by the second device for the first device to transmit uplink information, but there may not be uplink information transmitted on the first physical resource, or the first device may not transmit information on the first physical resource.

[0166] Step S502: The first device sends the second information, and correspondingly, the second device receives the second information.

[0167] The first device sending the second information means that the first device sends the second information to the second device, and correspondingly, the second device receiving the second information means that the second device receives the second information from the first device.

[0168] The second information is used to indicate whether the uplink information is transmitted on the first physical resource. Alternatively, the second information is used to indicate whether the first device sends the uplink information on the first physical resource.

[0169] Optionally, before the first device sends the second information, the first device determines whether there is uplink information to be sent. For example, if the first device determines that there is no uplink information to be sent, the first device sends the second information, which indicates that the first physical resource does not transmit the uplink information. If the first device determines that there is uplink information to be sent, the first device sends the second information, which indicates that the first physical resource transmits the uplink information. The second information used to indicate that the first physical resource does not transmit the uplink information and the second information used to indicate that the first physical resource transmits the uplink information are different information. Alternatively, the second information when the first physical resource does not transmit the uplink information and the second information when the first physical resource transmits the uplink information are different information.

[0170] As a possible implementation, the first device sends the third information or the fourth information, and correspondingly, the second device receives the third information or the fourth information. The third information is used to indicate that there is no uplink information on the first physical resource, and the fourth information is used to indicate that there is uplink information on the first physical resource.

[0171] Optionally, before the first device sends the third information or the fourth information, the first device determines whether there is uplink information to be sent. For example, if the first device determines that there is no uplink information to be sent, the first device sends the third information, which indicates that the first physical resource does not transmit the uplink information. If the first device determines that there is uplink information to be sent, the first device sends the fourth information, which indicates that the first physical resource transmits the uplink information. The third information and the fourth information are different information.

[0172] The following is introduced from two aspects. The first aspect: the second information includes the first signal, and the first signal is used to indicate that the uplink information is sent on the first physical resource; or the second information includes the second signal, and the second signal is used to indicate that the uplink information is not sent on the first physical resource. The second aspect: the second information includes the first state, and the first state is used to indicate that the uplink information is sent on the first physical resource; or the second information includes the second state, and the second state is used to indicate that the uplink information is not sent on the first physical resource.

[0173] Optionally, in embodiments of the present application, the first signal can be replaced by the fourth information, and the second signal can be replaced by the third information. The sending of the second information including the first state can be considered as the sending of the fourth information, and the sending of the second information including the second state can be considered as the sending of the third information.

[0174] The first aspect: the second information includes the first signal, and the first signal is used for indicating that the uplink information is sent on the first physical resource; or the second information includes the second signal, and the second signal is used for indicating that the uplink information is not sent on the first physical resource.

[0175] The first aspect: the second information includes the first signal, and the first signal is used for indicating that the uplink information is sent on the first physical resource; or the second information includes the second signal, and the second signal is used for indicating that the uplink information is not sent on the first physical resource.

[0176] The first aspect: the second information includes the first signal, and the first signal is used for indicating that the uplink information is sent on the first physical resource; or the second information includes the second signal, and the second signal is used for indicating that the uplink information is not sent on the first physical resource.

[0177] The first aspect: the second information includes the first signal, and the first signal is used for indicating that the uplink information is sent on the first physical resource; or the second information includes the second signal, and the second signal is used for indicating that the uplink information is not sent on the first physical resource.

[0178] By the above implementation manner, the first device sends the second information to indicate whether the uplink information is sent on the first physical resource. If the first device does not need to send the uplink information on the first physical resource, the first device does not send the padding on the position of the first physical resource, thereby saving the power consumption of the first device, and the second device does not monitor the uplink information on the position of the first physical resource, thereby saving the network power consumption. In addition, since the second device judges whether there is the uplink information on the first physical resource by detecting whether the second information is the first signal or the second signal, the false detection rate is reduced, thereby improving the throughput performance of the system.

[0179] Alternatively, by the above implementation manner, the first device sends the third information or the fourth information to indicate whether the uplink information is sent on the first physical resource. If the first device does not need to send the uplink information on the first physical resource, the first device does not send the padding on the position of the first physical resource, thereby saving the power consumption of the first device, and the second device does not monitor the uplink information on the position of the first physical resource, thereby saving the network power consumption. In addition, since the second device judges whether there is the uplink information on the first physical resource by detecting whether the third information or the fourth information is received, the false detection rate is reduced, thereby improving the throughput performance of the system.

[0180] For example, the first signal can also be referred to as a first state, and the second signal can also be referred to as a second state, which is not limited in the embodiments of the application.

[0181] The first signal and / or the second signal is one or more of a DMRS, a sounding reference signal (SRS), a channel state information (CSI), or a phase tracking reference signal (PTRS). By using the above reference signal or channel state information to indicate whether the uplink information is transmitted on the first physical resource, the signaling overhead can be not increased too much, and the time-frequency resources are not additionally occupied, thereby saving the energy consumption of the first device and the second device.

[0182] The first signal is taken as the DMRS for example, and the DMRS can be replaced by other signals in the embodiments of the application.

[0183] The signal types of the first signal and the second signal can be the same or different. For example, the signal types of the first signal and the second signal are the same, and sequences of the first signal and the second signal are different. For another example, the signal types of the first signal and the second signal are the same, and physical resources of the first signal and the second signal are different. For another example, the signal types of the first signal and the second signal are the same, and ports of the first signal and the second signal are different. Alternatively, the signal types of the first signal and the second signal are different. The signal types of the first signal and the second signal being the same means that the first signal and the second signal are signals of the same type, for example, the first signal and the second signal are both DMRS, or the first signal and the second signal are both SRS, or the first signal and the second signal are both CSI, or the first signal and the second signal are both PTRS. The signal types of the first signal and the second signal being different means that the first signal and the second signal are signals of different types, for example, the first signal is DMRS and the second signal is SRS.

[0184] The sequences of the first signal and the second signal being different means that orthogonal cover codes corresponding to the first signal and the second signal are different. The physical resources of the first signal and the second signal being different means that frequency domain ranges corresponding to the first signal and the second signal are different, and / or time domain ranges corresponding to the first signal and the second signal are different. The ports of the first signal and the second signal being different means that port numbers corresponding to the first signal and the second signal are different. The port number corresponding to the first signal means an identifier of a port for transmitting the first signal. The port number corresponding to the second signal means an identifier of a port for transmitting the second signal.

[0185] In a possible implementation, the signal types of the first signal and the second signal are the same, and sequences or physical resources or ports of the first signal and the second signal are different, including one or more of the following: the first signal is a first DMRS, and the second signal is a second DMRS; or, a port corresponding to the first signal is a first DMRS port, and a DMRS port corresponding to the second signal is a second DMRS port; or, the first signal and the second signal are both DMRS, and physical resources occupied by the first signal and the second signal are different; or, the first signal and the second signal are reference signals of the same type, and ports corresponding to the first signal and the second signal are different. For example, when the first signal is a first DMRS and the second signal is a second DMRS, sequences or physical resources or ports of the first DMRS and the second DMRS are different. For example, when a port corresponding to the first signal is a first DMRS port and a DMRS port corresponding to the second signal is a second DMRS port, the signal types of the first signal and the second signal are the same.

[0186] In the embodiments of the present application, the port corresponding to the signal means that the signal is transmitted or received by using the port.

[0187] In a possible implementation, the signal types of the first signal and the second signal are the same, and the sequences or physical resources or ports of the first signal and the second signal are different. The first signal includes: the first DMRS and / or the first DMRS port information. The second signal includes: the second DMRS and / or the second DMRS port information. Alternatively, the first signal is described as the first DMRS and / or the first signal includes the first DMRS port information. The second signal is described as the second DMRS and / or the second signal includes the second DMRS port information. For example, the first signal is the first DMRS, and the second signal is the second DMRS. The sequences or physical resources or ports of the first DMRS and the second DMRS are different. It can be understood that the second information is the first DMRS and / or the first DMRS port information, and the first device transmits the uplink information on the first physical resource. The second information is the second DMRS and / or the second DMRS port information, and the first device does not transmit the uplink information on the first physical resource.

[0188] In another possible implementation, the first signal and the second signal satisfy one or more of the following: the frequency domain positions of the first signal and the second signal are different; or the time domain positions of the first signal and the second signal are different; or the sequences of the first signal and the second signal are different; or the port numbers of the first signal and the second signal are different; or the signal types of the first signal and the second signal are different. For example, the first signal is the first DMRS, and the second signal is the second DMRS. For example, the first DMRS and the second DMRS can be the same DMRS or different DMRSs. The first DMRS and the second DMRS satisfy one or more of the following: the frequency domain positions of the first DMRS and the second DMRS are different; or the time domain positions of the first DMRS and the second DMRS are different; or the sequences of the first DMRS and the second DMRS are different; or the port numbers of the first DMRS and the second DMRS are different; or the types of the first DMRS and the second DMRS are different.

[0189] In a possible implementation, the first DMRS and the second DMRS are the same DMRS, and the time domain and / or frequency domain positions of the first DMRS and the second DMRS are different. Wherein, the first DMRS and the second DMRS are the same DMRS, which means that the sequences of the first DMRS and the second DMRS are the same, and the time domain and / or frequency domain positions of the first DMRS and the second DMRS are different. Alternatively, the first DMRS and the second DMRS are the same DMRS, which means that the sequences of the first DMRS and the second DMRS are the same, and the ports of the first DMRS and the second DMRS are different.

[0190] In yet another possible implementation, the first DMRS and the second DMRS are different DMRSs. For example, the first DMRS and the second DMRS are different in sequence or different in code word. The first DMRS and the second DMRS are different in sequence means that the first DMRS corresponds to a different orthogonal code from the second DMRS. Optionally, the first DMRS and the second DMRS have the same base sequence. The first device sending the second information means sending the first DMRS or sending the second DMRS. Correspondingly, the second device receives the DMRS and determines whether the second information is the first DMRS or the second DMRS.

[0191] Based on the above implementation, the sequence of the DMRS is used to distinguish whether the first device transmits uplink information on the first physical resource, which can improve the resource utilization rate. The DMRS can be used not only for channel state measurement but also for indicating whether there is information on the subsequent resource, effectively improving the utilization rate of the first device transmission power and being beneficial to energy saving of the first device.

[0192] In yet another possible implementation, the first DMRS and the second DMRS have different port information. For example, the first DMRS and the second DMRS are different DMRSs and have different port information. For another example, the first DMRS and the second DMRS are the same DMRS and have different port information. The first DMRS corresponds to first DMRS port information, and the second DMRS corresponds to second DMRS port information. The first DMRS port information is a first DMRS port or a first DMRS port ID. Optionally, the first DMRS port ID can also be referred to as a port number of the first DMRS. The second DMRS port information is a second DMRS port or a second DMRS port ID. Optionally, the second DMRS port ID can also be referred to as a port number of the second DMRS. The first device sending the second information means sending the DMRS through the first DMRS port or sending the DMRS through the second DMRS port. Alternatively, the first device sending the second information means transmitting the DMRS through the first DMRS port or transmitting the DMRS through the second DMRS port. Alternatively, the first device sending the second information means that the port number of the DMRS is the first DMRS port ID or the second DMRS port ID. Correspondingly, the second device receives the DMRS and determines whether the second information is the first DMRS port information or the second DMRS port information.

[0193] Based on the above implementation, whether the first device transmits uplink information on the first physical resource is distinguished by different ports of the DMRS, which can improve resource utilization, and the DMRS can be used not only for channel state measurement but also for indicating whether there is information on subsequent resources, effectively improving the utilization of the first device transmission power and benefiting the energy saving of the first device.

[0194] In yet another possible implementation, the frequency domain positions of the first DMRS and the second DMRS are different. For example, the first DMRS and the second DMRS are different DMRSs, and the frequency domain positions of the first DMRS and the second DMRS are different. For another example, the first DMRS and the second DMRS are the same DMRS, and the frequency domain positions of the first DMRS and the second DMRS are different. Wherein, the frequency domain positions of the first DMRS and the second DMRS are different means that the frequency domain range corresponding to the first DMRS and the frequency domain range corresponding to the second DMRS are different.

[0195] In the above method, since the second device configures the resource for transmitting the demodulation reference signal for the first device regardless of whether there is uplink information to be transmitted, and the first device transmits the demodulation reference signal, by using the existing demodulation reference signal to indicate whether the first physical resource transmits uplink information, no additional signaling overhead is increased, no additional time-frequency resources are occupied, and the energy consumption of the first device and the second device is saved.

[0196] In a possible implementation, the method further includes: determining, by the first device, the port corresponding to the first signal according to the first information. Alternatively, determining, by the first device, the port corresponding to the first signal according to the fifth information. Wherein, the port corresponding to the first signal is used to transmit the first signal. When the first signal is the first DMRS, the first DMRS is used to measure the channel state corresponding to the first physical resource. Optionally, the first device determines the port corresponding to the first signal according to the Antenna port(s) field included in the first information. In this application, the first signal is the first DMRS, and the port corresponding to the first signal is the first DMRS port. Optionally, the fifth information can be high layer information or information indicated by DCI.

[0197] In a possible implementation, the method further includes: determining, by the first device, the second physical resource according to the first physical resource and / or the second information. The second physical resource is used for transmitting the first signal or the second signal. The first device determining the second physical resource according to the first physical resource means that the resource blocks of the second physical resource are the same as the resource blocks of the first physical resource. Alternatively, the first device determining the second physical resource according to the first physical resource means that the resource block range of the second physical resource is the same as the resource block range of the first physical resource. In the above implementation, the physical resources of the first signal and the second signal are the same. Alternatively, the CDM groups of the first signal and the second signal are the same. Optionally, the first device determining the second physical resource according to the second information means that the first device determines the port information of the first signal or the second signal according to the second information, and determines the second physical resource according to the port information. For example, the first device determines the resource elements of the second physical resource according to the port information, or determines the CDM group of the second physical resource according to the port information. Alternatively, the CDM groups of the first signal and the second signal are the same, and the second physical resource is determined according to the first physical resource and the CDM group. Optionally, the first device determining the second physical resource according to the first physical resource and the second information means that the first device determines the resource blocks of the second physical resource according to the first physical resource, and determines the resource elements of the second physical resource according to the second information.

[0198] The second physical resource is associated with the first physical resource. For example, the first physical resource includes the second physical resource, or the second physical resource is a part of the first physical resource, or the second physical resource is within the corresponding frequency domain range of the first physical resource. For example, the second physical resource is a resource element, the first physical resource is a resource block, the resource block includes the resource element, and the second physical resource is included in the first physical resource.

[0199] It should be noted that in this embodiment, the port information can be equivalent to a port or a port number.

[0200] In a possible implementation, the first device can determine the second signal in the following two ways. For example, the second signal is a second DMRS and / or the second signal includes second DMRS port information, and the details are as follows:

[0201] Method 1: The first device determines the second signal according to a predefined rule. For example, the second signal is a second DMRS and / or the second signal includes second DMRS port information. The predefined rule is specified by a protocol. Alternatively, the second DMRS and / or the second DMRS port is determined by the second device, and then the second device informs the first device, which is not limited in this embodiment.

[0202] For example, the second DMRS is predefined, and the generation rule and / or mapping rule and / or port information of the second DMRS of all the first devices are the same. In an example, the first device determines the second DMRS according to the predefined rule. For example, the port of the second DMRS is DMRS port 0. For another example, the port of the second DMRS is DMRS port 1. In yet another example, the predefined second DMRS port is DMRS port M, where M is an integer. For example, M is 0, and the predefined second DMRS port is port 0. In a possible implementation, the second DMRS ports of all the first devices are predefined to be the same. In another possible implementation, the second DMRS ports of different first devices are different. For example, the second DMRS port is associated with specific information of the first device, for example, the specific information can be identification information of the first device. For another example, the second DMRS port is reported by the first device.

[0203] Optionally, before determining the second DMRS and / or the second DMRS port according to the first indication information, the first device receives the first indication information. Optionally, the first device receives the first indication information from the second device.

[0204] Optionally, the first indication information can be carried in the first information or not carried in the first information, and the embodiment is not limited in itself.

[0205] Optionally, the first indication information can be carried in the first information or not carried in the first information, and the embodiment is not limited in itself.

[0206] Optionally, the first indication information can be carried in the first information or not carried in the first information, and the embodiment is not limited in itself.

[0207] For example, the first indication information is semi-static information or dynamic information. The semi-static information can be high-layer signaling, which can be radio resource control (RRC) or medium access control-control element (MAC CE). The dynamic information can be DCI.

[0208] For example, the second signal is configured by the second device. For example, the second signal is a cell-level parameter configured by the second device, and the generation rule and / or mapping rule of the second signal of all the first devices in a cell are the same. For another example, the second signal is a terminal-level parameter configured by the second device, and the generation rule and / or mapping rule of the second signal of each first device is configured separately.

[0209] In yet another possible implementation, the first signal is a first DMRS, the second signal is a second DMRS, the port corresponding to the first signal is a first DMRS port, and the port corresponding to the second signal is a second DMRS port. The method further includes: sending, by the first device, the first DMRS through the first DMRS port, or sending, by the first device, the second DMRS through the second DMRS port.

[0210] The first device sends the first DMRS through the first DMRS port, the first device sends the first DMRS on the second physical resource through the first DMRS port, and the first device sends the uplink information on the first physical resource. The first device sends the second DMRS through the second DMRS port, the first device sends the second DMRS on the second physical resource through the second DMRS port, and the first device does not send the uplink information on the first physical resource. Correspondingly, the second device detects the first DMRS port on the second physical resource, and the second device receives the uplink information on the first physical resource. Or, the second device does not detect the first DMRS port on the second physical resource, and the second device does not receive the uplink information on the first physical resource. Alternatively, the second device detects the second DMRS port on the second physical resource, and the second device does not receive the uplink information on the first physical resource. Or, the second device does not detect the second DMRS port on the second physical resource, and the second device receives the uplink information on the first physical resource.

[0211] In an example, referring to FIG. 6, which is a schematic diagram of a first DMRS port and a second DMRS port, port 0 is the second DMRS port, and port 1 is the first DMRS port. The first device sends the second DMRS through port 0 and does not send the uplink information on the first physical resource. The first device sends the first DMRS through port 1 and sends the uplink information on the first physical resource. In the above case, the first DMRS and the second DMRS are the same. Alternatively, in the above case, the first DMRS and the second DMRS are different.

[0212] In the above method, the first DMRS sent through the first DMRS port can determine that the uplink information is transmitted on the first physical resource, or the second DMRS sent through the second DMRS port can determine that the uplink information is not transmitted on the first physical resource, so that the second device judges whether to receive the uplink information on the first physical resource, thereby reducing the power consumption of the network. In addition, the second device judges whether to schedule the first device for retransmission, thereby avoiding or reducing data loss, reducing the packet loss rate, and further reducing the power consumption of the first device.

[0213] In yet another possible implementation, the method further includes that the first device does not send an SR in a time length T before receiving the first information. The not sending an SR means that the first device does not send an SR to the second device. Correspondingly, the second device does not receive an SR in the time length T. In this way, the execution process can be in the uplink basic pre-scheduling or uplink intelligent pre-scheduling process.

[0214] The first device satisfies a first condition, and the first condition is that the first device does not send an SR in a time length T before receiving the first information, and then the steps S501-S502 are executed. If the first condition is not satisfied, the first device uses the second DMRS port to send the second DMRS regardless of whether the uplink information is sent on the first physical resource. Alternatively, if the first condition is not satisfied, the second information cannot indicate whether the uplink information is transmitted on the first physical resource. Alternatively, if the first condition is not satisfied, the second information cannot indicate whether the first DMRS or the second DMRS is sent on the second physical resource.

[0215] The T can be predefined, indicated by the second device, or reported by the first device. The T is X time units. The time unit is any one of the following: one or more slots, one or more frames, one or more subframes, one or more symbols, or one or more mini-slots. For example, the T is X slots, or the T is X symbols. The X is an integer. For example, the X=2, or the X=5, or the X=10.

[0216] The second device can determine whether to detect the uplink energy saving signal by whether an SR is received in the time length T. Alternatively, the second device can determine whether the second information is used only for channel estimation or also used to indicate whether the uplink information is transmitted on the first physical resource by whether an SR is received in the time length T. In an example, referring to FIG. 7, which is a schematic diagram of uplink scheduling provided by an embodiment of the present application, if the first device sends an SR and the second device performs uplink scheduling, the first device uses the second DMRS port to send the second DMRS and sends uplink data or an empty packet; if the first device does not send an SR in the time length T and the second device performs uplink pre-scheduling, the first device executes the steps S501-S502.

[0217] In the above implementation method, the execution process is in the uplink basic pre-scheduling or uplink intelligent pre-scheduling process, so that the second device determines whether to determine the second information. If it is not in the uplink basic pre-scheduling or uplink intelligent pre-scheduling process, the first device can only send the second information for channel measurement, or not send the second information, and the uplink information is sent on the first physical resource. At this time, the detection complexity and power consumption of the second device can be reduced, and the transmission power consumption of the first device can also be reduced.

[0218] The second aspect: the second information includes a first state, and the first state is used to indicate that the uplink information is sent on the first physical resource; or the second information includes a second state, and the second state is used to indicate that the uplink information is not sent on the first physical resource.

[0219] The second aspect: the second information includes a first state, and the first state is used to indicate that the uplink information is sent on the first physical resource; or the second information includes a second state, and the second state is used to indicate that the uplink information is not sent on the first physical resource.

[0220] The second aspect: the second information includes a first state, and the first state is used to indicate that the uplink information is sent on the first physical resource; or the second information includes a second state, and the second state is used to indicate that the uplink information is not sent on the first physical resource.

[0221] The second aspect: the second information includes a first state, and the first state is used to indicate that the uplink information is sent on the first physical resource; or the second information includes a second state, and the second state is used to indicate that the uplink information is not sent on the first physical resource.

[0222] By the above implementation manner, the first device sends the second information to indicate whether the uplink information is sent on the first physical resource, if the first device does not need to send the uplink information on the first physical resource, the first device does not send padding on the position of the first physical resource, thereby saving the power consumption of the first device, and the second device does not monitor the uplink information on the position of the first physical resource, thereby saving the network power consumption. In addition, since the second device judges whether the uplink information is on the first physical resource by detecting whether the second information is the first state or the second state, the false detection rate is reduced, thereby improving the throughput performance of the system.

[0223] The first state and the second state are carried in one or more of the following, including: PUCCH, PUSCH, PRACH, sequence, physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), uplink control information (UCI), or auxiliary information of the first device. The first state and the second state are carried by the same channel. For example, the first state and the second state are both carried in the PUCCH, and the first state and the second state are two states in the PUCCH. Alternatively, the first state and the second state are carried by different channels. For example, the first state is carried in the PUCCH, and the second state is carried in the PUSCH. For example, the first state is 1, and the second state is 0; or the first state is 0, and the second state is 1.

[0224] In another possible implementation manner, the first device sending the second information includes: the first device sending the second information on a third physical resource, and correspondingly, the second device receiving the second information on the third physical resource.

[0225] Before the first device sends the second information on the third physical resource, the first device determines the third physical resource. The bandwidth of the third physical resource is less than or equal to a first threshold value. And / or, the time of the third physical resource is less than or equal to a second threshold value. The bandwidth of the third physical resource refers to the frequency domain range corresponding to the third physical resource, and the time of the third physical resource refers to the time domain range corresponding to the third physical resource. The first threshold value and the second threshold value are different. The first threshold value and the second threshold value are predefined or indicated by the second device, which is not limited in the embodiments of the present application. In an example, the first threshold value is B, for example, B is N resource blocks, and N is a positive integer. For example, N = 1, or N = 2, or N = 5, or N = 10. In an example, the second threshold value is T, for example, T is M symbols, and M is a positive integer. For example, M = 1.

[0226] In an example, please refer to FIG. 8 which is a schematic diagram of a first state and a second state provided by the embodiment of the present application. In FIG. 8, (a) represents a schematic diagram of a second state provided by the embodiment of the present application. As shown in the figure, the second information includes the second state. For example, the second state is LP-UL=0, and the first device does not transmit uplink information on the first physical resource. (b) represents a schematic diagram of a first state. The second information includes the first state. For example, the first state is LP-UL=1, and the first device transmits uplink information on the first physical resource.

[0227] By the way that the first device transmits the second information to the second device on the third physical resource of the small bandwidth, a small amount of physical resource can be used to indicate whether the uplink information is transmitted on the first physical resource, thereby reducing the occupation of resources and saving the transmission power consumption of the first device.

[0228] In another possible implementation, the method further includes: the first device transmits a third DMRS on a fourth physical resource, and correspondingly, the second device receives the third DMRS on the fourth physical resource.

[0229] In the method, before the first device transmits the third DMRS on the fourth physical resource, the first device determines the fourth physical resource.

[0230] In the method, the third DMRS is used to measure the channel state corresponding to the first physical resource and / or the third physical resource.

[0231] In the method, the fourth physical resource is associated with the first physical resource, and / or the fourth physical resource is associated with the third physical resource.

[0232] In the method, the fourth physical resource is associated with the first physical resource, which means that the first physical resource includes the fourth physical resource. Alternatively, the fourth physical resource is a part of the first physical resource. Alternatively, the fourth physical resource is within the frequency domain range corresponding to the first physical resource. For example, the fourth physical resource is a resource unit, the first physical resource is a resource block, the resource block includes the resource unit, and the fourth physical resource is contained in the first physical resource. Alternatively, the frequency domain range of the fourth physical resource is the same as that of the first physical resource.

[0233] In the method, the fourth physical resource is associated with the third physical resource, which means that the third physical resource includes the fourth physical resource. Alternatively, the fourth physical resource is a part of the third physical resource. Alternatively, the fourth physical resource is within the frequency domain range corresponding to the third physical resource. For example, the fourth physical resource is a resource unit, the third physical resource is a resource block, the resource block includes the resource unit, and the fourth physical resource is contained in the third physical resource. Alternatively, the frequency domain range of the fourth physical resource is the same as that of the third physical resource.

[0234] The second information includes the first state, and the fourth physical resource is associated with the first physical resource; or the second information includes the second state, and the fourth physical resource is associated with the third physical resource. It can be understood that when the second information includes the first state, the fourth physical resource is within the frequency domain corresponding to the first physical resource, and correspondingly, the third DMRS is used to measure the channel state corresponding to the first physical resource; when the second information includes the second state, the fourth physical resource is within the frequency domain corresponding to the third physical resource, and correspondingly, the third DMRS is used to measure the channel state corresponding to the third physical resource. In this way, the resource utilization can be improved.

[0235] In an example, please refer to FIG. 9, which is a schematic diagram of the first state and the second state provided by the embodiment of the present application. In (a) of FIG. 9, a schematic diagram of the second state is provided. As shown in the figure, the second information includes the second state, for example, the second state is low-power uplink signal LP-UL = 0, and the first device does not send uplink information on the first physical resource; (b) of FIG. 9 is a schematic diagram of the first state, the first state is LP-UL = 1, and the first device sends uplink information on the first physical resource.

[0236] It should be noted that the second information can be one or more of the following: uplink signal, uplink data, downlink signal, downlink data, orthogonal code, sensing signal, duplex signal, artificial intelligence signal or backhaul signal. For example, the uplink signal can be an uplink reference signal (UL RS). For example, the UL RS can be a DMRS, an SRS or a positioning reference signal. The DMRS refers to the DMRS of the uplink channel, for example, the DMRS is the DMRS of the PUSCH or the DMRS of the PUCCH. The uplink data can be PUSCH or PUCCH. The orthogonal code refers to an orthogonal cover code or a cyclic shift code.

[0237] In the method described in FIG. 5, the first device does not send padding at the position of the first physical resource if the first device does not need to send uplink information on the first physical resource, which saves the power consumption of the first device, and correspondingly, the second device does not monitor uplink information at the position of the first physical resource, which saves the power consumption of the network. In addition, since the second device judges whether there is uplink information on the first physical resource by detecting the second information, the false detection rate is reduced, thereby improving the throughput performance of the system. Further, the second device can determine whether the first device transmits uplink information based on the second information, thereby judging whether the first device needs to be scheduled for retransmission. For example, when the second device does not receive uplink information on the first physical resource, the first device can be scheduled for retransmission, which avoids or reduces data loss, thereby reducing the packet loss rate and further reducing the power consumption of the first device. Moreover, according to the present application, the first device can be ensured to reduce the sending of empty packets without increasing the false detection rate of the second device, thereby reducing the sending power consumption of the first device and reducing the interference of empty packets on other uplink information.

[0238] Referring to FIG. 10, FIG. 10 is a flow diagram of another communication method according to an embodiment of the present application, which specifically includes the following steps:

[0239] Step S1001: The first device determines a DMRS port used for indicating no PUSCH transmission.

[0240] For example, the first device determines a second DMRS port used for indicating no PUSCH transmission, i.e., no uplink information is transmitted on the first physical resource. The process of determining the second DMRS port by the first device can refer to the related description in step S502, which will not be repeated here.

[0241] Step S1002: The first device determines a DMRS port used for indicating PUSCH transmission.

[0242] For example, the first device determines a first DMRS port used for indicating PUSCH transmission, i.e., uplink information is transmitted on the first physical resource. The process of determining the first DMRS port by the first device can refer to the related description in step S502, which will not be repeated here.

[0243] For example, step S1001 and step S1002 have no sequence.

[0244] Step S1003: The first device determines whether there is PUSCH transmission.

[0245] For example, the step can be understood as the first device determining whether there is uplink information to be transmitted.

[0246] Step S1004: If the first device determines that there is PUSCH transmission, the first device transmits the first DMRS through the first DMRS port and transmits the uplink information on the first physical resource.

[0247] For example, the step can refer to the related description in step S502, which will not be repeated here.

[0248] Step S1005: If the first device determines that there is no PUSCH transmission, the first device transmits the second DMRS through the second DMRS port and does not transmit the uplink information on the first physical resource.

[0249] For example, step S1004 and step S1005 have no sequence.

[0250] For example, the step can refer to the related description in step S502, which will not be repeated here.

[0251] In the method described in FIG. 10, the first device does not transmit padding in the position of the first physical resource if the first device does not need to transmit uplink information on the first physical resource, which saves the power consumption of the first device, and correspondingly, the second device does not monitor the uplink information in the position of the first physical resource, which saves the network power consumption. In addition, since the second device determines whether there is uplink information on the first physical resource by detecting the second information, the false detection rate is reduced, thereby improving the throughput performance of the system. Further, the second device can also determine whether the first device transmits uplink information, so as to determine whether the first device needs to be scheduled for retransmission. For example, when the second device does not receive uplink information on the first physical resource, the first device can be scheduled for retransmission, which avoids or reduces the loss of data, thereby reducing the packet loss rate and further reducing the power consumption of the first device. Moreover, through the present application, the first device can be ensured to reduce the transmission of empty packets without increasing the false detection rate of the second device, thereby reducing the transmission power consumption of the first device and reducing the interference of empty packets on other uplink information.

[0252] The above describes the method of the embodiment of the present application in detail, and the device of the embodiment of the present application is provided below.

[0253] Please refer to FIG. 11, which is a structural schematic diagram of a communication apparatus 1100 provided in an embodiment of the present application. The communication apparatus 1100 can be a first device or a second device. The first device can be a terminal device, or a component (for example, a processor, a chip, or a chip system, etc.) in the terminal device, or a logic module or software capable of realizing all or part of the functions of the terminal device. The second device can be a network device, or a component (for example, a processor, a chip, or a chip system, etc.) in the network device, or a logic module or software capable of realizing all or part of the functions of the network device. The communication apparatus 1100 can include a module or unit corresponding to each of the methods / operations / steps / actions performed by the first device or the second device in the above-mentioned method embodiments. The unit can be a hardware circuit, or software, or a combination of hardware circuit and software. In a possible implementation, the communication apparatus 1100 can include a processing unit 1101 and a transceiver unit 1102, which are specifically as follows:

[0254] The processing unit 1101 is configured to perform data processing. The transceiver unit 1102 can realize corresponding communication functions. The transceiver unit 1102 can also be referred to as a communication interface or a communication module.

[0255] Optionally, the communication apparatus 1100 can further include a storage unit, which can be configured to store instructions and / or data. The processing unit 1101 can read the instructions and / or data in the storage unit, so as to realize the above-mentioned method embodiments.

[0256] Optionally, the transceiver unit 1102 can include a sending unit and a receiving unit. The sending unit is configured to perform the sending operations in the above-mentioned method embodiments. The receiving unit is configured to perform the receiving operations in the above-mentioned method embodiments.

[0257] It should be noted that the communication apparatus 1100 can include the sending unit, but not the receiving unit. Alternatively, the communication apparatus 1100 can include the receiving unit, but not the sending unit. Whether the sending unit and the receiving unit are included in the communication apparatus 1100 can depend on whether the communication apparatus 1100 performs the sending action and the receiving action in the above-mentioned schemes.

[0258] Optionally, the communication apparatus 1100 is configured to perform the actions performed by the first device in the embodiments shown in FIG. 5 and FIG. 10. For details, refer to the related description in the embodiments shown in FIG. 5 and FIG. 10, which are not described here in detail. For example, the communication apparatus 1100 is configured to perform the following scheme: the transceiver unit 1102 is configured to receive first information, the first information being used to indicate a first physical resource, and the first physical resource being used to transmit uplink information; and the transceiver unit 1102 is configured to send second information, the second information being used to indicate whether the uplink information is transmitted on the first physical resource.

[0259] In a possible implementation, the second information is used to indicate whether uplink information is transmitted on the first physical resource, including: the second information includes a first signal, the first signal is used to indicate that the uplink information is sent on the first physical resource; or the second information includes a second signal, the second signal is used to indicate that the uplink information is not sent on the first physical resource.

[0260] In another possible implementation, the first signal and / or the second signal is one or more of: a demodulation reference signal (DMRS), a sounding reference signal (SRS), channel state information (CSI), or a phase tracking reference signal (PTRS); wherein the first signal and the second signal are of the same signal type, and the first signal and the second signal are different in sequence or physical resource or port.

[0261] In another possible implementation, the first signal and the second signal are of the same signal type, and the first signal and the second signal are different in sequence or physical resource or port, including one or more of: the first signal is a first DMRS, and the second signal is a second DMRS; or, the port corresponding to the first signal is a first DMRS port, and the port corresponding to the second signal is a second DMRS port; or, the first signal and the second signal are both DMRSs, and the first signal and the second signal occupy different physical resources.

[0262] In another possible implementation, the first signal and the second signal satisfy one or more of: different frequency domain positions; or, different time domain positions; or, different sequences; or, different port numbers; or, different types.

[0263] In another possible implementation, the processing unit 1101 is further configured to determine a second physical resource according to the first physical resource and / or the second information, wherein the second physical resource is used to transmit the first signal or the second signal.

[0264] In another possible implementation, the processing unit 1101 is further configured to determine the second signal according to a predefined rule; and / or, determine the second signal according to first indication information.

[0265] In a further possible implementation, the first signal is a first DMRS, the second signal is a second DMRS, the port corresponding to the first signal is a first DMRS port, and the port corresponding to the second signal is a second DMRS port. The transceiver 1102 is further configured to transmit the first DMRS via the first DMRS port, or transmit the second DMRS via the second DMRS port.

[0266] In a further possible implementation, the transceiver 1102 is configured to transmit the first DMRS via the first DMRS port on the second physical resource and transmit the uplink information on the first physical resource, and transmit the second DMRS via the second DMRS port on the second physical resource and not transmit the uplink information on the first physical resource.

[0267] In a further possible implementation, the transceiver 1102 is configured to not transmit a scheduling request within a time length T before receiving the first information.

[0268] In a further possible implementation, the second information includes a first state, and the first state is used to indicate that the uplink information is transmitted on the first physical resource, or the second information includes a second state, and the second state is used to indicate that the uplink information is not transmitted on the first physical resource.

[0269] In a further possible implementation, the first state and the second state are carried in one or more of the following: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), a sequence, a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), uplink control information (UCI), or auxiliary information of a terminal device.

[0270] In a further possible implementation, the first state and the second state are carried via a same channel.

[0271] In a further possible implementation, the transceiver 1102 is configured to transmit the second information on a third physical resource, where a bandwidth of the third physical resource is less than or equal to a first threshold value, and / or a time of the third physical resource is less than or equal to a second threshold value.

[0272] In a further possible implementation, the transceiver 1102 is configured to transmit a third DMRS on a fourth physical resource, where the fourth physical resource is associated with the first physical resource, or the fourth physical resource is associated with the third physical resource.

[0273] In a further possible implementation, the second information comprises the first state, and the fourth physical resource is associated with the first physical resource; or, the second information comprises the second state, and the fourth physical resource is associated with the third physical resource.

[0274] It should be noted that the implementation and advantages of each module can also correspond to the description of the corresponding method embodiments shown in FIG. 5 and FIG. 10.

[0275] Optionally, the communication apparatus 1100 is configured to perform the actions performed by the second device in the embodiments shown in FIG. 5 and FIG. 10. For details, please refer to the related description in the embodiments shown in FIG. 5 and FIG. 10, which will not be repeated here. For example, the communication apparatus 1100 is configured to perform the following scheme: the processing unit 1101 is configured to send first information through the transceiver unit 1102, the first information is used to indicate a first physical resource, and the first physical resource is used to transmit uplink information; the transceiver unit 1102 is configured to receive second information; the second information comprises a first signal, and uplink information is received on the first physical resource; the second information comprises a second signal, and no uplink information is received on the first physical resource; or, the second information comprises a first state, and uplink information is received on the first physical resource; the second information comprises a second state, and no uplink information is received on the first physical resource.

[0276] In a possible implementation, the first signal and / or the second signal is one or more of the following: a demodulation reference signal (DMRS), a sounding reference signal (SRS), channel state information (CSI), or a phase tracking reference signal (PTRS); wherein the first signal and the second signal have the same signal type, and the first signal and the second signal have different sequences or physical resources or ports.

[0277] In a further possible implementation, the first signal and the second signal have the same signal type, and the first signal and the second signal have different sequences or physical resources or ports, including one or more of the following: the first signal is a first DMRS, and the second signal is a second DMRS; or, the port corresponding to the first signal is a first DMRS port, and the port corresponding to the second signal is a second DMRS port; or, the first signal and the second signal are both DMRSs, and the first signal and the second signal occupy different physical resources.

[0278] In a further possible implementation, the first signal and the second signal satisfy one or more of the following: the first signal and the second signal are different in frequency domain location; or, the first signal and the second signal are different in time domain location; or, the first signal and the second signal are different in sequence; or, the first signal and the second signal are different in port number; or, the first signal and the second signal are different in type.

[0279] In a further possible implementation, the first signal is a first DMRS, the second signal is a second DMRS, the first signal corresponds to a first DMRS port, and the second signal corresponds to a second DMRS port, and the transceiver 1102 is further configured to receive the first DMRS through the first DMRS port; or, receive the second DMRS through the second DMRS port.

[0280] In a further possible implementation, the transceiver 1102 is configured to receive the first DMRS through the first DMRS port on the second physical resource and receive the uplink information on the first physical resource, and receive the second DMRS through the second DMRS port on the second physical resource and not receive the uplink information on the first physical resource.

[0281] In a further possible implementation, the first state and the second state are carried in one or more of the following, including: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), a sequence, a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), uplink control information (UCI), or auxiliary information of the terminal device.

[0282] In a further possible implementation, the first state and the second state are carried through the same channel.

[0283] In a further possible implementation, the transceiver 1102 is configured to receive the second information on a third physical resource, a bandwidth of the third physical resource being less than or equal to a first threshold value, and / or a time of the third physical resource being less than or equal to a second threshold value.

[0284] In a further possible implementation, the transceiver 1102 is further configured to receive a third DMRS on a fourth physical resource, wherein the fourth physical resource is associated with the first physical resource, or the fourth physical resource is associated with the third physical resource.

[0285] In yet another possible implementation, the second information comprises the first state, and the fourth physical resource is associated with the first physical resource; or, the second information comprises the second state, and the fourth physical resource is associated with the third physical resource.

[0286] It should be noted that the implementation and benefits of each module can also correspond to the respective description of the method embodiments shown in FIG. 5 and FIG. 10.

[0287] It should be understood that the specific processes in which each module performs the respective processes described above have been described in detail in the above method embodiments, and for the sake of brevity, will not be repeated here.

[0288] The processing unit 1101 in the above embodiments can be implemented by at least one processor or processor-related circuit. The transceiver unit 1102 can be implemented by a transceiver or transceiver-related circuit. The transceiver unit 1102 can also be referred to as a communication module or a communication interface. The storage module can be implemented by at least one memory.

[0289] Please refer to FIG. 12, which is a structural schematic diagram of another communication apparatus 1200 provided by the embodiments of the present application. The communication apparatus 1200 can be a first apparatus or a second apparatus. The first apparatus can be a terminal device, or a component (for example, a processor, a chip, or a chip system, etc.) in the terminal device, or a logic module or software capable of realizing all or part of the terminal device functions. The second apparatus can be a network device, or a component (for example, a processor, a chip, or a chip system, etc.) in the network device, or a logic module or software capable of realizing all or part of the network device functions. The communication apparatus 1200 comprises at least one processor 1201 and a communication interface 1203, and optionally further comprises a memory 1202, wherein the processor 1201, the memory 1202, and the communication interface 1203 are connected with each other through a bus 1204. Optionally, the processor 1201 can be integrated with the memory 1202.

[0290] The memory 1202 comprises, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), or a compact disc read-only memory (CD-ROM). The memory 1202 is used to store computer programs or instructions and data. The communication interface 1203 is used to receive and send data.

[0291] The processor 1201 can be one or more central processing units (CPUs), and in the case of the processor 1201 being a CPU, the CPU can be a single core processor or a multi core processor.

[0292] The processor 1201 in the communication device 1200 is configured to read the computer program or instructions stored in the memory 1202 to implement the functions of the processing unit described above, and the communication interface 1203 in the communication device 1200 is configured to implement the functions of the transceiver unit described above.

[0293] The embodiments of the present application further provide a chip device, which includes at least one processor configured to execute computer programs or instructions to enable the processor to perform the method provided by the above embodiments.

[0294] In a possible implementation, the input of the chip device corresponds to the receiving operation in any of the above embodiments, and the output of the chip device corresponds to the sending operation in any of the above embodiments.

[0295] Optionally, the processor is coupled to the memory through an interface.

[0296] Optionally, the chip device further includes a memory, and the memory stores computer program instructions.

[0297] The embodiments of the present application further provide a computer readable storage medium, which stores computer programs or instructions, and when the computer programs or instructions are run on a processor, the method performed by the first device or the second device in the above method embodiments is implemented.

[0298] The embodiments of the present application further provide a computer program product, which includes computer programs or instructions, and when the computer programs or instructions are run on a processor, the method performed by the first device or the second device in the above method embodiments is implemented.

[0299] The embodiments of the present application further provide a communication system, which includes the first device in the above embodiments and the second device in the above embodiments. The first device is configured to perform part or all of the operations performed by the first device in the above method embodiments, and the second device is configured to perform part or all of the operations performed by the second device in the above method embodiments.

[0300] It can be understood that the processor in the embodiments of the present application can be a CPU, and can also be other general-purpose processors, digital signal processors (DSP), graphical processing units (GPU), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor.

[0301] The method steps in the embodiments of the present application can be realized by hardware or by the processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an erasable programmable read-only memory, an electrically erasable programmable read-only memory, a register, a hard disk, a mobile hard disk, a CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor, so that the processor can read information from and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station, a terminal or a core network device. Of course, the processor and the storage medium can also exist as discrete components in the base station, the terminal or the core network device.

[0302] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer programs or instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are performed. The computer can be a general purpose computer, a special purpose computer, a computer network, a network device, a user equipment or other programmable apparatus. The computer programs or instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer programs or instructions can be transferred from one website site, computer, server or data center to another website site, computer, server or data center through wired or wireless manner. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center and the like integrated with one or more available media. The available media can be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; an optical medium, such as a digital video disc; and a semiconductor medium, such as a solid state disk. The computer readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile storage media.

[0303] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0304] In the description of the present application, the words "first", "second", "S501" or "S502" and the like are only used for the purpose of distinguishing the description and the context of the writing, and the different order numbers themselves do not have specific technical meanings, cannot be understood as indicating or implying relative importance, and cannot be understood as indicating or implying the execution order of the operation, and the execution order of each process should be determined according to its function and inherent logic.

Claims

1. A communication method characterized by comprising: The method comprises: receiving first information, the first information being used for indicating a first physical resource, the first physical resource being used for transmitting uplink information; transmitting second information, the second information being used for indicating whether the uplink information is transmitted on the first physical resource.

2. The method of claim 1, wherein, The second information is used for indicating whether the uplink information is transmitted on the first physical resource, comprising: the second information comprises a first signal, the first signal being used for indicating that the uplink information is transmitted on the first physical resource; or the second information comprises a second signal, the second signal being used for indicating that the uplink information is not transmitted on the first physical resource.

3. The method of claim 2, wherein, The first signal and / or the second signal is one or more of the following: a demodulation reference signal (DMRS), a sounding reference signal (SRS), channel state information (CSI), or a phase tracking reference signal (PTRS); wherein the first signal and the second signal are of the same signal type, and the first signal and the second signal are different in sequence or physical resource or port.

4. The method of claim 3, wherein, The first signal and the second signal are of the same signal type, and the first signal and the second signal are different in sequence or physical resource or port, comprising one or more of the following: the first signal is a first DMRS, and the second signal is a second DMRS; or a port corresponding to the first signal is a first DMRS port, and a port corresponding to the second signal is a second DMRS port; or the first signal and the second signal are both DMRSs, and the first signal and the second signal occupy different physical resources.

5. The method according to any one of claims 2-4, characterized in that, The first signal and the second signal satisfy one or more of the following: the first signal and the second signal are different in frequency domain position; or the first signal and the second signal are different in time domain position; or the first signal and the second signal are different in sequence; or the first signal and the second signal are different in port number; or the first signal and the second signal are different in signal type.

6. The method according to any one of claims 2-5, characterized in that, The method further comprises: determining a second physical resource according to the first physical resource and / or the second information, wherein the second physical resource is used for transmitting the first signal or the second signal.

7. The method according to any one of claims 3-6, further comprising: determining the second signal according to a predefined rule; and / or determining the second signal according to first indication information. The first signal is a first DMRS, the second signal is a second DMRS, a port corresponding to the first signal is a first DMRS port, and a port corresponding to the second signal is a second DMRS port, the method further comprising:

8. The method according to any one of claims 2 to 7, characterized in that, transmitting the first DMRS through the first DMRS port; or transmitting the second DMRS through the second DMRS port.

9. The method according to claim 8, wherein the transmitting the first DMRS through the first DMRS port comprises: transmitting the first DMRS on the second physical resource through the first DMRS port, and transmitting the uplink information on the first physical resource. ​ The sending the second DMRS through the second DMRS port comprises: sending the second DMRS through the second DMRS port on the second physical resource and not sending the uplink information on the first physical resource.

10. The method according to any one of claims 1 to 9, characterized in that, The method further comprises: not sending a scheduling request within a time length T before receiving the first information.

11. The method of claim 1, wherein the second information comprises a first state, the first state being used to indicate sending the uplink information on the first physical resource; or the second information comprises a second state, the second state being used to indicate not sending the uplink information on the first physical resource.

12. The method of claim 11, wherein, the first state and the second state are carried in one or more of the following: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), a sequence, a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), uplink control information (UCI), or auxiliary information of a terminal device.

13. The method of claim 11 or 12, wherein the first state and the second state are carried through a same channel.

14. The method according to any one of claims 11-13, characterized in that, The sending the second information comprises: sending the second information on a third physical resource, wherein a bandwidth of the third physical resource is less than or equal to a first threshold value; and / or a time of the third physical resource is less than or equal to a second threshold value.

15. The method according to any one of claims 11-14, characterized in that, The method further comprises: sending a third DMRS on a fourth physical resource, wherein the fourth physical resource is associated with the first physical resource, or the fourth physical resource is associated with the third physical resource.

16. The method of claim 15, wherein the second information comprises the first state, and the fourth physical resource is associated with the first physical resource; or the second information comprises the second state, and the fourth physical resource is associated with the third physical resource.

17. A method of communication, comprising: comprises: sending first information, the first information being used to indicate a first physical resource, the first physical resource being used to transmit uplink information; receiving second information; the second information comprising a first signal, receiving uplink information on a first physical resource; the second information comprising a second signal, not receiving uplink information on a first physical resource; or the second information comprising a first state, receiving uplink information on a first physical resource; the second information comprising a second state, not receiving uplink information on a first physical resource.

18. The method of claim 17, wherein, the first signal and / or the second signal being one or more of the following: a demodulation reference signal (DMRS), a sounding reference signal (SRS), channel state information (CSI), or a phase tracking reference signal (PTRS); wherein the first signal and the second signal are of a same signal type, and the first signal and the second signal are different in sequence or physical resource or port.

19. The method of claim 18, wherein, the first signal and the second signal being of a same signal type, and the first signal and the second signal being different in sequence or physical resource or port, comprising one or more of the following: The first signal is a first DMRS, and the second signal is a second DMRS; or The port corresponding to the first signal is a first DMRS port, and the port corresponding to the second signal is a second DMRS port; or The first signal and the second signal are both DMRSs, and the first signal and the second signal occupy different physical resources.

20. The method according to any one of claims 17-19, characterized by, The first signal and the second signal satisfy one or more of the following: The frequency domain positions of the first signal and the second signal are different; or The time domain positions of the first signal and the second signal are different; or The sequences of the first signal and the second signal are different; or The port numbers of the first signal and the second signal are different; or The types of the first signal and the second signal are different.

21. The method according to any one of claims 17-20, characterized in that, The first signal is a first DMRS, the second signal is a second DMRS, the port corresponding to the first signal is a first DMRS port, and the port corresponding to the second signal is a second DMRS port, and the method further comprises: receiving the first DMRS through the first DMRS port; or receiving the second DMRS through the second DMRS port.

22. The method of claim 21, wherein the receiving the first DMRS through the first DMRS port comprises: receiving the first DMRS through the first DMRS port on the second physical resource and receiving the uplink information on the first physical resource; the receiving the second DMRS through the second DMRS port comprises: receiving the second DMRS through the second DMRS port on the second physical resource and not receiving the uplink information on the first physical resource.

23. The method of claim 17, wherein, The first state and the second state are carried in one or more of the following, which includes: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), a sequence, a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), uplink control information (UCI), or auxiliary information of a terminal device.

24. The method of claim 23, wherein The first state and the second state are carried through the same channel.

25. The method of claim 23 or 24, wherein, The receiving the second information comprises: receiving the second information on a third physical resource, The bandwidth of the third physical resource is less than or equal to a first threshold value; and / or The time of the third physical resource is less than or equal to a second threshold value.

26. The method of any one of claims 23-25, wherein, The method further comprises: receiving a third DMRS on a fourth physical resource, wherein the fourth physical resource is associated with the first physical resource, or the fourth physical resource is associated with the third physical resource.

27. The method of claim 26, wherein The second information includes the first state, and the fourth physical resource is associated with the first physical resource; or The second information includes the second state, and the fourth physical resource is associated with the third physical resource.

28. A first apparatus, comprising: The first device comprises a module for performing the method of any one of claims 1-16.

29. A second device, characterized in that: The second apparatus comprises modules for performing the method of any of claims 17-27.

30. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program or instructions which, when run on the processor, implement the method of any of claims 1-16, or implement the method of any of claims 17-27.

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