Communication method, terminal device and network device

Abstract

The present application provides a communication method, a terminal device, and a network device, enabling the terminal device to receive a signal to be transmitted more accurately. The method includes: the terminal device receives control information sent by the network device through a first reception parameter, where the control information is used to indicate a second reception parameter, and the second reception parameter is used for the terminal device to receive the signal to be transmitted; the terminal device determines a beam switching time required to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs; the terminal device receives the signal to be transmitted according to the beam switching time.

Description

[0001] This application is a divisional application of the invention application with the application date of May 25, 2018, the Chinese application number of 201810532030.5, and the application title of "Communication Method, Terminal Device and Network Device". Technical Field

[0002] This application relates to the field of communications, and more particularly, to a communication method, a terminal device, and a network device. Background Art

[0003] In the current technology, when a network device schedules a terminal device, the time-frequency resource location of the physical downlink shared channel (PDSCH) and the receiving beam used by the terminal device to receive the PDSCH are indicated to the terminal device through the downlink control information (DCI) in the physical downlink control channel (PDCCH). If the terminal device determines that the time interval between the PDCCH and the PDSCH is greater than or equal to a threshold value, the terminal device will receive the PDSCH through the receiving beam indicated by the DCI. If the terminal device determines that the time interval between the PDCCH and the PDSCH is less than the threshold value, the terminal device will receive the PDSCH using the default beam. The above threshold value is determined according to the ability to decode the DCI and the beam switching ability. The beam switching time required by the terminal device includes {14 symbols, 28 symbols}.

[0004] The above beam switching time is the time required for the switching between two beams within one antenna panel. With the development of technology, most existing and future terminal devices will involve multiple antenna panels. Since it may take more time to switch between antenna panels, how the terminal device accurately receives the signal to be transmitted in the case of multiple antenna panels that may be involved has become an urgent problem to be solved. Summary of the Invention

[0005] This application provides a communication method, in which a terminal device can more accurately receive a signal to be transmitted.

[0006] In a first aspect, a communication method is provided. The method includes: a terminal device receives control information sent by a network device through a first reception parameter, where the control information is used to indicate a second reception parameter, and the second reception parameter is used for the terminal device to receive a signal to be transmitted; the terminal device determines the beam switching time required to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs; the terminal device receives the signal to be transmitted according to the beam switching time.

[0007] It should be understood that the "received parameter" in this application can be understood as the "received beam", and this received beam is the received beam of the terminal device. The reference signal resource in the following text can be understood as the "transmitted beam" of the network device. The terminal device and the network device communicate in the form of beams. The terminal device can determine the corresponding received beam according to the transmitted beam of the network device. Therefore, during downlink scheduling transmission, the network device can indicate the received beam of the terminal device to the terminal device by sending the beam indication information of the transmitted beam of the network device or the beam indication information of the received beam of the terminal device to the terminal device. Therefore, "A indicates the received parameter" and "A indicates the transmitted beam" are equivalent concepts. For example, the control information for indicating the second received parameter and the control information for indicating the second transmitted beam are equivalent concepts. Here, the second received parameter corresponds to the second transmitted beam. When the network device transmits through the second transmitted beam, the terminal device receives through the second received parameter. The beam indication information can be the identifier or index of the beam, etc. For specific details, reference can be made to the description in the specific implementation part below, and no introduction will be made here for the time being.

[0008] It should be noted that the terminal device described in this application switching from the first received beam to the second received beam refers to the time required for the terminal device to receive the control information and decode the control information to obtain the second received beam until it switches to the second received beam. That is to say, the beam switching time described in this application includes the time required for the terminal device to decode the control information and the time required for the terminal device to perform beam switching after decoding the control information.

[0009] For the communication method provided in this application, the terminal device does not consider that the beam switching time required for the received beams of any two terminal devices is the same and receive the signal to be transmitted according to this beam switching time. Instead, it needs to determine this beam switching time according to whether these two received beams belong to the same antenna panel and receive the signal to be transmitted according to this switching time. Since the beam switching time required for switching between any two beams within the antenna panel is different from the beam switching time required for switching between any two beams between antenna panels, compared with the prior art, the terminal device can receive the signal to be transmitted more accurately according to this beam switching time.

[0010] Combined with the first aspect, in a possible implementation manner of the first aspect, before the terminal device receives the control information sent by the network device through the first received parameter, the method further includes:

[0011] The terminal device receives the reference signal sent by the network device through one or more reference signal resources;

[0012] The terminal device determines one or more target reference signal resources and a plurality of reception parameters corresponding to the one or more target reference signal resources according to the measurement of the reference signal, and determines the antenna panels of the terminal device corresponding to the plurality of reception parameters respectively, where the one or more target reference signal resources are part or all of the one or more reference signal resources, and the plurality of reception parameters include the first reception parameter and the second reception parameter;

[0013] The terminal device sends beam measurement information to the network device, and the beam measurement information is used to indicate the one or more target reference signal resources and the antenna panels of the terminal device corresponding to the one or more target reference signal resources respectively.

[0014] Specifically, by measuring the reference signals on one or more transmission beams of the network device, the terminal device can obtain one or more relatively optimal transmission beams of the network device (i.e., one or more target transmission beams). For example, the terminal device can select one or more transmission beams with a larger reference signal receiving power (RSRP) of the transmission beam as the one or more relatively optimal transmission beams. Moreover, by measuring the same transmission beam of the network device through different reception beams, the terminal device can obtain a plurality of relatively optimal reception beams, and thus can obtain a plurality of relatively optimal beam pairs (a beam pair includes a transmission beam of a network device and a reception beam of a terminal device). Here, the transmission beams of the network device included in different beam pairs among the plurality of beam pairs can be the same or different, and the reception beams of the terminal device included in different beam pairs among the plurality of beam pairs can be the same or different. That is to say, one transmission beam can correspond to a plurality of reception beams, or a plurality of transmission beams can correspond to one reception beam, or the transmission beam and the reception beam are in one-to-one correspondence.

[0015] The receiving beams of the terminal devices in the above-mentioned multiple beam pairs may belong to different antenna panels. Moreover, in the embodiments of the present application, the terminal device can maintain the correspondence between the transmitting beam of the network device, the receiving beam of the terminal device, and the antenna panel of the terminal device. After the terminal device obtains multiple better transmitting beams of the network device, it can feedback the beam measurement information of the multiple better transmitting beams to the network device. The beam measurement information is used to indicate the transmitting beam and the antenna panel of the terminal device corresponding to the transmitting beam. For example, the beam measurement information may include the index of the transmitting beam and the index of the antenna panel of the terminal device corresponding to the transmitting beam. Further, the beam measurement information may further include the index of the receiving beam of the terminal device corresponding to the transmitting beam. It should be understood that the antenna panel of the terminal device corresponding to the transmitting beam, that is, the antenna panel to which the receiving beam corresponding to the transmitting beam belongs. In addition, the beam measurement information may further include the RSRP of the transmitting beam, but the embodiments of the present application do not limit this.

[0016] Thus, according to the beam measurement information feedback by the terminal device, the network device can determine the antenna panels of the terminal devices to which the first receiving beam and the second receiving beam belong respectively, or in other words, can determine whether the first receiving beam and the second receiving beam belong to the same antenna panel of the terminal device.

[0017] It should be understood that the receiving beam corresponds to the transmitting beam. Therefore, the network device determines the antenna panels of the terminal devices to which the first receiving beam and the second receiving beam belong respectively, which can also be described as: the network device determines the antenna panels of the terminal devices corresponding to the first transmitting beam and the second transmitting beam respectively.

[0018] It should be understood that the reference signal resource may be a CSI-RS resource, but the embodiments of the present application do not limit this. The reference signal resource can be represented by the index (or number, or identifier (ID)) of the reference signal resource, the index of the CSI-RS resource set, and the index of the CSI-RS resource configuration. The reference signal may be CSI-RS, synchronization signal, broadcast channel, broadcast channel demodulation reference signal, synchronization signal block, control channel demodulation reference signal, data channel demodulation reference signal, phase noise tracking signal, etc., and the embodiments of the present application do not limit this.

[0019] In a possible implementation manner, after the terminal device determines the multiple beam pairs described above, it can explicitly feedback the indexes of the multiple transmitting beams and the indexes of the corresponding antenna panels of the terminal device. For example, the beam measurement information feedback by the terminal device may be in the following form:

[0020] {Transmission beam #1, antenna panel #1, ……}; {Transmission beam #2, antenna panel #2, ……}; {Transmission beam #3, antenna panel #3, ……}; {Transmission beam #4, antenna panel #4, ……}.

[0021] It should be understood that the ellipsis here indicates that the terminal device can also feedback other information in addition to the indexes of the transmission beam and the antenna panel, such as the beam quality of the transmission beam, including RSRP, received signal strength indicator (RSSI), reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), channel quality indicator (CQI), rank indicator (RI), precoding matrix indicator (PMI), etc.

[0022] In another possible implementation, after determining the multiple beam pairs described above, the terminal device can feedback the antenna panel of the terminal device corresponding to the transmission beam by feedbacking the grouping information of the transmission beam. For example, the terminal device can divide the beams received by the same antenna panel into a group. The beam measurement information feedback by the terminal device can be in the following form:

[0023] {group#1, transmission beam #1, transmission beam #2, …}; {group#2, transmission beam #3, transmission beam #4, …}

[0024] According to the above grouping information feedback by the terminal device, the network device can determine that the antenna panels of the terminal device corresponding to transmission beam #1 and transmission beam #2 belong to one antenna panel, and the antenna panels of the terminal device corresponding to transmission beam #3 and transmission beam #4 belong to another antenna panel.

[0025] It should be understood that the ellipsis here indicates that the terminal device can also feedback other information in addition to the indexes of the transmission beam and the antenna panel, such as the beam quality of the transmission beam, including RSRP, RSRQ, RSSI, SINR, CQI, RI, PMI, etc.

[0026] Optionally, the terminal device can also divide the beams received by different antenna panels into a group. The beam measurement information feedback by the terminal device can be in the following form:

[0027] {group#1, transmission beam #1, transmission beam #3, …}; {group#2, transmission beam #2, transmission beam #4, …}.

[0028] Based on the above grouping information fed back by the terminal device, the network device can determine that the antenna panels of the terminal devices corresponding to transmission beam #1 and transmission beam #3 are different, and the antenna panels of the terminal devices corresponding to transmission beam #2 and transmission beam #4 are different.

[0029] Optionally, the terminal device can also report only the beams received by the same antenna panel in one report and report the beams received by different antenna panels in different reports. The beam measurement information fed back by the terminal device can be in the following form:

[0030] First report: transmission beam #1, transmission beam #2, …

[0031] Second report: transmission beam #3, transmission beam #4, ..

[0032] Based on the above grouping information fed back by the terminal device, the network device can determine that the antenna panels of the terminal devices corresponding to transmission beam #1 and transmission beam #2 belong to one antenna panel, and the antenna panels of the terminal devices corresponding to transmission beam #3 and transmission beam #4 belong to another antenna panel.

[0033] Optionally, the terminal device can also report only the beams received by different antenna panels in one report. The beam measurement information fed back by the terminal device can be in the following form:

[0034] First report: transmission beam #1, transmission beam #3, …

[0035] Second report: transmission beam #2, transmission beam #4, ..

[0036] Based on the above grouping information fed back by the terminal device, the network device can determine that the antenna panels of the terminal devices corresponding to transmission beam #1 and transmission beam #3 are different, and the antenna panels of the terminal devices corresponding to transmission beam #2 and transmission beam #4 are different.

[0037] Optionally, which grouping method the terminal device specifically adopts can be predefined by the protocol, or indicated by the network device, or determined independently and the grouping principle is notified to the network device.

[0038] Combined with the first aspect, in a possible implementation manner of the first aspect, before the terminal device receives the control information sent by the network device through the first reception parameter, the method further includes:

[0039] The terminal device sends beam switching capability information to the network device. The beam switching capability information is used to indicate a first switching time required for switching between any two beams within the same antenna panel of the terminal device, and a second switching time required for switching between any two beams on different antenna panels of the terminal device. Alternatively, the beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the terminal device, and a third switching time required for switching between any two antenna panels of the terminal device.

[0040] That is to say, the time required for the terminal to switch from one beam within an antenna panel to another beam within the same antenna panel is the first switching time, such as 2 ms. The time required for the terminal to switch from one beam within an antenna panel to one beam on another antenna panel is the second switching time, such as 10 ms. The time required for the terminal to switch from one antenna panel to another antenna panel is the third switching time, such as 8 ms. The time required for the terminal to switch from one beam within the one antenna panel to another beam within the other antenna panel is at least 2 ms + 8 ms. That is to say, the second switching time is greater than or equal to the sum of the third switching time and the first switching time.

[0041] It should be understood that the first switching time includes the time for the terminal to decode control information and the time for the terminal to perform beam switching within the same antenna panel; the second switching time includes the time for the terminal to decode control information and the time for the terminal to perform beam switching between different antenna panels.

[0042] It should be noted that, depending on the capabilities of the terminal device, the time required for any two beam switches within one antenna panel of the terminal device may be different from the time required for any two beam switches within another antenna panel of the terminal device, or the time required for the terminal device to switch from a beam within one antenna panel (e.g., the first antenna panel) to a beam within another antenna panel (e.g., the second antenna panel) may be different from the time required for the terminal device to switch from a beam within the first antenna panel to a beam within the third antenna panel. In this case, the terminal device needs to indicate these switching situations and the corresponding switching times in the beam switching capability information it reports. For example, if the time required to switch from the first antenna panel to the second antenna panel, the time required to switch from the second antenna panel to the first antenna panel, and the time required to switch from the first antenna panel to the third antenna panel are all different, then the reported beam switching capability information may include the time required to switch from the first antenna panel to the second antenna panel, the time required to switch from the second antenna panel to the first antenna panel, and the time required to switch from the first antenna panel to the third antenna panel. It should be understood that the above first, second, and third can also be extended to the first type, the second type, and the third type. For example, the first type of antenna panel is driven by one radio frequency link, and the second type is driven by two radio frequency links. Combining with the first aspect, in a possible implementation manner of the first aspect, the terminal device determines the beam switching time required to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs, including:

[0043] When the first reception parameter and the second reception parameter belong to the same antenna panel, the terminal device determines the beam switching time as the first switching time; or,

[0044] When the first reception parameter and the second reception parameter belong to different antenna panels, the terminal device determines the beam switching time as the second switching time, or the beam switching time of the terminal device is greater than or equal to the sum of the first switching time and the third switching time.

[0045] For example, the network device can obtain the time required for the terminal device to switch from the first reception beam to the second reception beam according to the beam switching capability information fed back by the terminal device, and then the network device can achieve efficient scheduling of the terminal device.

[0046] In addition, the network device can autonomously determine the beam switching time required for the terminal device to switch from the first reception parameter to the second reception parameter. For example, the system can be configured such that only terminal devices meeting the following conditions can access the network: the time required for beam switching between any two beams within the same antenna panel is the first switching time, and the time required for beam switching between any two beams on different antenna panels is the second switching time, or the time required for beam switching between any two beams within the same antenna panel is the first switching time, and the time required for switching between any two antenna panels is the third switching time. In this way, as long as the terminal device can access the network, the network device can determine the beam switching time required for the terminal device to switch from the first reception parameter to the second reception parameter based on whether the first reception beam and the second reception beam belong to the same antenna panel of the terminal device.

[0047] Combined with the first aspect, in a possible implementation manner of the first aspect, the control information is further used to indicate the position of the signal to be transmitted in the time domain;

[0048] Wherein, the terminal device receives the signal to be transmitted according to the beam switching time, including one or more of the following:

[0049] In the case where the first reception parameter and the second reception parameter belong to the same antenna panel, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the first switching time, the terminal device receives the signal to be transmitted at the position of the signal to be transmitted in the time domain through the second reception parameter;

[0050] In the case where the first reception parameter and the second reception parameter belong to the same antenna panel, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is less than the first switching time, the terminal device receives the signal to be transmitted at the position of the signal to be transmitted in the time domain through a preset reception parameter;

[0051] In the case where the first reception parameter and the second reception parameter belong to different antenna panels, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the second switching time, or greater than or equal to the sum of the first switching time and the third switching time, the terminal device receives the signal to be transmitted at the position of the signal to be transmitted in the time domain through the second reception parameter;

[0052] When the first received parameter and the second received parameter belong to different antenna panels, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is less than the second handover time, or less than the sum of the first handover time and the third handover time, the terminal device receives the signal to be transmitted at the position of the signal to be transmitted in the time domain by using a preset received parameter.

[0053] It should be understood that the above preset received parameter may be a beam for receiving control information, that is, the first received beam.

[0054] In the embodiment of the present application, before decoding the control information, the terminal device cannot determine the receiving beam for receiving the signal to be transmitted indicated by the network device, nor can it determine the size of the time interval between the position of the control information in the time domain and the position of the signal to be transmitted in the time domain. At this time, the terminal device can use the preset receiving beam to buffer the received signal after receiving the control information and before decoding the control information. If the terminal device determines that the time interval between the position of the control information in the time domain and the position of the signal to be transmitted in the time domain is greater than or equal to the beam handover time, it can clear the buffer and receive the signal to be transmitted at the position of the signal to be transmitted in the time domain.

[0055] In addition, as an embodiment of the present application, if there is urgent data transmission, such as low-latency data, the network device can use a preset transmission beam to transmit the signal to be transmitted before the above-mentioned beam handover time (such as 2 ms) arrives, for example, at the 1st ms. At this time, a preset receiving beam and / or a corresponding preset transmission beam need to be defined between the network device and the terminal device.

[0056] Optionally, the preset receiving beam may be the receiving beam corresponding to the control channel resource set with the lowest (lowest CORESET ID) control channel resource set indication, or the receiving beam corresponding to the control channel resource set with the lowest indication in the control channel resource set corresponding to the current antenna panel of the terminal device.

[0057] The current antenna panel of the terminal device refers to the antenna panel corresponding to the first received beam. For example, the antenna panel corresponding to the first received beam is antenna panel #1, and the receiving beams and antenna panels corresponding to the control channel resource sets are: {first control channel resource set, antenna panel #2, receiving beam #x}; {second control channel resource set, antenna panel #1, receiving beam #y}; {third control channel resource set, antenna panel #1, receiving beam #z}. In this case, the preset beam should be the beam #y corresponding to the second control channel resource set, rather than the receiving beam #x corresponding to the first control channel resource set.

[0058] Optionally, the preset receiving beam may also be the receiving beam used for random access corresponding to the current antenna panel of the terminal device. That is, if the receiving beam #A in the current antenna panel of the terminal device is used for the previous random access process, then the receiving beam #A is used as the preset receiving beam.

[0059] Optionally, the preset receiving beam may also be the receiving beam corresponding to the most recent successful transmission of the current antenna panel of the terminal device.

[0060] Combined with the first aspect, in a possible implementation manner of the first aspect, the control information is downlink control information DCI, and the signal to be transmitted is a physical downlink shared channel PDSCH.

[0061] It should be understood that the signal to be transmitted may be a channel state information reference signal (CSI-RS) or other signals, which is not limited in the embodiments of the present application.

[0062] In a second aspect, a communication method is provided, including:

[0063] The network device determines the beam switching time required for the terminal device to switch from the first receiving parameter to the second receiving parameter according to the antenna panel to which the first receiving parameter belongs and the antenna panel to which the second receiving parameter belongs, where the first receiving parameter is used for the terminal device to receive control information, and the second receiving parameter is used for the terminal device to receive the signal to be transmitted;

[0064] The network device determines the position of the signal to be transmitted in the time domain according to the beam switching time;

[0065] The network device sends control information to the terminal device, where the control information is used to indicate the second receiving parameter and the position of the signal to be transmitted in the time domain;

[0066] The network device sends the signal to be transmitted to the terminal device according to the position of the signal to be transmitted in the time domain.

[0067] In the communication method provided by this application, the network device determines the beam switching time required for the terminal device to switch from the receiving beam of the control information to the receiving beam of the signal to be transmitted (the beam switching time includes the time required for the terminal device to decode the control information) according to whether the antenna panel to which the receiving beam of the control information and the receiving beam of the signal to be transmitted belong is the same antenna panel, and reasonably sets the time interval between the positions of the control information and the signal to be transmitted in the time domain according to the beam switching time, so as to achieve reasonable scheduling of the terminal device. For the terminal device, it does not consider that the beam switching time required for the receiving beams of any two terminal devices is the same according to the prior art and receive the signal to be transmitted according to the beam switching time, but needs to determine the beam switching time according to whether these two receiving beams belong to the same antenna panel. Since the beam switching time required for any two beams within the antenna panel is different from the beam switching time required for any two beams between antenna panels, compared with the prior art, the terminal device can receive the signal to be transmitted reasonably according to the beam switching time.

[0068] Combined with the second aspect, in a possible implementation manner of the second aspect, before the network device determines the beam switching time required for the terminal device to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs, the method further includes:

[0069] The network device sends a reference signal through one or more reference signal resources;

[0070] The network device receives the beam measurement information sent by the terminal device, where the beam measurement information is used to indicate one or more target reference signal resources and the antenna panel of the terminal device corresponding to each of the one or more target reference signal resources. Among them, the one or more target reference signal resources are part or all of the one or more reference signal resources, and the one or more target reference signal resources correspond to multiple reception parameters, and the multiple reception parameters include the first reception parameter and the second reception parameter.

[0071] Combined with the second aspect, in a possible implementation manner of the second aspect, before the network device determines the beam switching time required for the terminal device to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs, the method further includes:

[0072] The network device receives the beam switching capability information sent by the terminal device. The beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the terminal device, and the second switching time required for switching between any two beams on different antenna panels of the terminal device. Alternatively, the beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the terminal device, and the third switching time required for switching between any two antenna panels of the terminal device.

[0073] Combined with the second aspect, in a possible implementation manner of the second aspect, the network device determines the beam switching time required for the terminal device to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs, including:

[0074] When the first reception parameter and the second reception parameter belong to the same antenna panel, the network device determines that the beam switching time is the first switching time; or,

[0075] When the first reception parameter and the second reception parameter belong to different antenna panels, the network device determines that the beam switching time is the second switching time, or the network device determines that the beam switching time is greater than or equal to the sum of the first switching time and the third switching time.

[0076] Combined with the second aspect, in a possible implementation manner of the second aspect, the network device determines the position of the signal to be transmitted in the time domain according to the beam switching time, including:

[0077] When the first reception parameter and the second reception parameter belong to the same antenna panel, the network device determines that the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the first switching time; and / or

[0078] When the first reception parameter and the second reception parameter belong to different antenna panels, the network device determines that the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the second switching time, or greater than or equal to the sum of the first switching time and the third switching time.

[0079] Combined with the second aspect, in a possible implementation manner of the second aspect, the control information is downlink control information DCI, and the signal to be transmitted is physical downlink shared channel PDSCH.

[0080] It should be understood that for some of the same or corresponding implementation manners of the second aspect and the first aspect, reference may be made to the description of the first aspect and will not be elaborated here.

[0081] In a third aspect, a communication device is provided. The communication device includes a unit configured to execute the method in the first aspect or any possible implementation manner of the first aspect. The unit included in the communication device may be implemented by software and / or hardware.

[0082] In a fourth aspect, a communication device is provided. The communication device includes a unit configured to execute the method in the second aspect or any possible implementation manner of the second aspect. The unit included in the communication device may be implemented by software and / or hardware.

[0083] In a fifth aspect, the present application provides a communication device. The communication device includes at least one processor and a communication interface. The communication interface is used for the communication device to interact with other communication devices. When program instructions are executed in the at least one processor, the method in the first aspect or any possible implementation manner of the first aspect is implemented.

[0084] Optionally, the communication device may further include a memory. The memory is used for storing programs and data.

[0085] Optionally, the communication device may be a terminal device.

[0086] In a sixth aspect, the present application provides a communication device. The communication device includes at least one processor and a communication interface. The communication interface is used for the communication device to interact with other communication devices. When program instructions are executed in the at least one processor, the method in the second aspect or any possible implementation manner of the second aspect is implemented.

[0087] Optionally, the communication device may further include a memory. The memory is used for storing programs and data.

[0088] Optionally, the communication device may be a network device.

[0089] In a seventh aspect, the present application provides a computer-readable storage medium. Program code for execution by a communication device is stored in the computer-readable storage medium. The program code includes instructions for executing the method in the above aspects or any possible implementation manner of the above aspects.

[0090] For example, program code for execution by a terminal device may be stored in the computer-readable medium. The program code includes instructions for executing the method in the first aspect or any possible implementation manner of the first aspect.

[0091] For example, program code for network device execution may be stored in the computer-readable medium, and the program code includes instructions for performing the method in the second aspect or any possible implementation manner in the second aspect.

[0092] In an eighth aspect, the present application provides a computer program product including instructions. When the computer program product runs on a communication device, it causes the communication device to execute the instructions for performing the method in any of the above aspects or any possible implementation manner in the above aspects.

[0093] For example, when the computer program product is executed on a terminal device, it causes the terminal device to execute the instructions for performing the method in the first aspect or any possible implementation manner in the first aspect.

[0094] For example, when the computer program product is executed on a network device, it causes the network device to execute the instructions for performing the method in the second aspect or any possible implementation manner in the second aspect.

[0095] In a ninth aspect, the present application provides a system chip, which includes an input / output interface and at least one processor. The at least one processor is configured to call instructions in a memory to perform operations of the method in any of the above aspects or any possible implementation manner in the above aspects.

[0096] Optionally, the system chip may further include at least one memory and a bus. The at least one memory is used to store instructions executed by the processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0097] Figure 1 is a schematic diagram of a communication system according to the present application.

[0098] Figure 2 is a schematic diagram of a communication method according to an embodiment of the present application.

[0099] Figure 3 is a schematic diagram of a specific embodiment of a communication method according to an embodiment of the present application.

[0100] Figure 4 is a schematic diagram of another specific embodiment of a communication method according to an embodiment of the present application.

[0101] Figure 5 is a schematic structural diagram of a communication device provided by the present application.

[0102] Figure 6 is a schematic structural diagram of a communication device provided by the present application.

[0103] Figure 7 is a structural diagram of a terminal device provided by the present application.

[0104] Figure 8 It is a schematic structural diagram of a network device provided by this application. Specific implementation manners

[0105] Next, the technical solutions in this application will be described with reference to the accompanying drawings.

[0106] The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System for Mobile Communications (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5th generation (5G) system or New Radio (NR), etc.

[0107] The terminal device in the embodiments of this application may refer to a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile device, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved public land mobile network (PLMN). The embodiments of this application do not limit this.

[0108] The network device in the embodiments of this application may be a device used to communicate with a terminal. The network device may be a base transceiver station (BTS) in a global system for mobile communications (GSM) system or a code division multiple access (CDMA) system, or a node B (NB) in a wideband code division multiple access (WCDMA) system, or an evolved node B (eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (CRAN) scenario. Alternatively, the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network. The embodiments of this application do not limit this.

[0109] To facilitate the understanding of the embodiments of this application, some concepts or terms involved in this application will be briefly described first.

[0110] 1. Beam

[0111] A beam is a communication resource. The beam can be a wide beam, a narrow beam, or other types of beams. The technology for forming a beam can be beamforming technology or other technical means. The beamforming technology can specifically be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology. Different beams can be considered as different resources. The same information or different information can be sent through different beams. Optionally, multiple beams with the same or similar communication characteristics can be regarded as one beam. One beam can include one or more antenna ports for transmitting data channels, control channels, sounding signals, etc.

[0112] A beam, which can also be understood as a spatial resource, can refer to a transmit or receive precoding vector with energy transmission directivity. The energy transmission directivity can mean that within a certain spatial position, the received signal after being precoded by this precoding vector has better received power, such as meeting the received demodulation signal-to-noise ratio, etc. The energy transmission directivity can also mean that the same signal transmitted from different spatial positions is received with different received powers through this precoding vector. The same device (such as a network device or a terminal device) can have different precoding vectors, and different devices can also have different precoding vectors, that is, corresponding to different beams. Depending on the configuration or capabilities of the device, a device can use one or more of multiple different precoding vectors at the same time, that is, it can form one beam or multiple beams simultaneously. From the perspectives of transmission and reception, beams can be divided into transmit beams and receive beams.

[0113] Transmit beam: It refers to transmitting a directional beam through multiple antennas using beamforming technology.

[0114] Receive beam: It means that the direction of receiving the signal also has directivity, and it points as much as possible to the incoming wave direction of the transmit beam to further improve the received signal-to-noise ratio and avoid interference between users.

[0115] Information for indicating a beam, for example, can be referred to as beam indication information. The beam indication information can be one or more of the following: beam number (or number, index, identifier (ID), etc.), uplink signal resource number, downlink signal resource number, absolute index of the beam, relative index of the beam, logical index of the beam, index of the antenna port corresponding to the beam, index of the antenna port group corresponding to the beam, index of the downlink signal corresponding to the beam, time index of the downlink synchronization signal block corresponding to the beam, beam pair link (BPL) information, transmission parameter (Tx parameter) corresponding to the beam, reception parameter (Rx parameter) corresponding to the beam, transmission weight corresponding to the beam, weight matrix corresponding to the beam, weight vector corresponding to the beam, reception weight corresponding to the beam, index of the transmission weight corresponding to the beam, index of the weight matrix corresponding to the beam, index of the weight vector corresponding to the beam, index of the reception weight corresponding to the beam, reception codebook corresponding to the beam, transmission codebook corresponding to the beam, index of the reception codebook corresponding to the beam, index of the transmission codebook corresponding to the beam. Among them, the downlink signal can be one or more of the following: synchronization signal, broadcast channel, broadcast signal demodulation signal, synchronization signal / PBCH block (SSB), channel state information reference signal (CSI-RS), cell-specific reference signal (CS-RS), user equipment specific reference signal (US-RS), downlink control channel demodulation reference signal (DMRS), downlink data channel demodulation reference signal, downlink phase noise tracking signal. The uplink signal can be one or more of the following: uplink random access sequence, sounding reference signal (SRS), uplink control channel demodulation reference signal, uplink data channel demodulation reference signal, uplink phase noise tracking signal. Optionally, the network device can also allocate QCL identifiers to beams with QCL relationships among the beams associated with the frequency resource group. A beam can also be referred to as a spatial domain transmission filter, a transmit beam can also be referred to as a spatial domain transmit filter, and a receive beam can also be referred to as a spatial domain receive filter.

[0116] The beam indication information can also be embodied as a transmission configuration indicator (TCI) or a TCI state. Exemplarily, the structure of the TCI is as follows

[0117]

[0118] The TCI can include various parameters, such as cell ID, bandwidth part ID, reference signal ID, synchronization signal block ID, quasi - colocation (QCL) type, etc.

[0119] 2. Beamforming technology

[0120] The beamforming technology can achieve higher antenna array gain by transmitting or receiving signals in a specific direction in space.

[0121] Analog beamforming can be implemented through phase shifters. An RF link adjusts the phase through a phase shifter to control the change of the analog beam direction. Therefore, an RF link can only form one analog beam at the same time.

[0122] For communication based on analog beams, beam alignment between the transmitter and the receiver is required, otherwise the signal cannot be transmitted properly.

[0123] The signals of wireless communication need to be received and transmitted by antennas. Multiple antenna elements can be integrated on a panel. An RF link can drive one or more antenna elements.

[0124] In the embodiments of this application, the terminal device may include multiple antenna panels, and each antenna panel includes one or more beams. The network device may also include multiple antenna panels, and each antenna panel includes one or more beams.

[0125] The antenna panel can also be referred to as an antenna array or an antenna sub - array. An antenna panel can include one or more antenna arrays / sub - arrays. An antenna panel can be controlled by one or more oscillators.

[0126] The RF link can also be referred to as a receiving channel and / or a transmitting channel, a receiver branch, etc.

[0127] An antenna panel can be driven by one radio frequency link or multiple radio frequency links. Therefore, the antenna panel in this application can also be replaced by a radio frequency link, or multiple radio frequency links that drive an antenna panel, or one or more radio frequency links controlled by one crystal oscillator.

[0128] 3. Control Resource Set (CORESET)

[0129] To improve the blind detection efficiency of the control channel of the terminal device, the concept of CORESET was proposed during the NR standard formulation process. The network device can configure one or more CORESETs for the terminal to send PDCCH. The network device can send a control channel to the terminal device on any CORESET corresponding to the terminal device. In addition, the network device also needs to notify the terminal device of other configurations associated with the CORESET, such as the search space, etc. There are differences in the configuration information of each CORESET, such as differences in frequency domain width, time domain length, etc. The terminal device actually blind-detects the control channel by blind-detecting the search space. One CORESET can be associated with one or more search spaces. Therefore, one CORESET in this application can also be replaced by one or more search spaces.

[0130] Next, the communication method of the embodiments of this application will be described in detail.

[0131] To enable those skilled in the art to better understand this application, first, a communication system applicable to this application will be introduced.

[0132] Figure 1 is a schematic diagram of a communication system 100 applicable to the embodiments of this application. As Figure 1 shown, the communication system 100 includes at least one network device 110 and at least one terminal device 120. Through the beam training process, the network device 110 can obtain multiple beam pairs that are better for communicating with the terminal device 120. The beam training process specifically includes:

[0133] Step 1: The network device sends a reference signal through at least one (i.e., one or more) reference signal resources. Correspondingly, the terminal device receives the reference signal sent by the network device through one or more reference signal resources.

[0134] It should be understood that the reference signal resource may be a CSI-RS resource, but the embodiments of the present application do not limit this. The reference signal resource can be represented by the index (or number, or identifier (ID)) of the reference signal resource. The reference signal resource can be understood as the transmission beam of the network device. Different reference signal resources may correspond to different transmission beams, and different reference signal resources may also correspond to the same transmission beam. The network device sends reference signals through multiple reference signal resources, which can be understood as the network device sending reference signals to the terminal device through multiple transmission beams. The reference signal may be CSI-RS, synchronization signal block, etc., and the embodiments of the present application do not limit this. To enable those skilled in the art to better understand the present application, in the following method embodiments, "transmission beam" is used to replace "reference signal resource" to describe the embodiments of the present application.

[0135] Step 2: The terminal device determines one or more target transmission beams and the antenna panels of the terminal device corresponding to the one or more target transmission beams respectively according to the measurement of the reference signal. The one or more target transmission beams are part or all of the one or more transmission beams.

[0136] Specifically, by measuring the reference signals on one or more transmission beams of the network device, the terminal device can obtain one or more relatively good transmission beams of the network device (i.e., one or more target transmission beams). For example, the terminal device may select one or more transmission beams with a larger RSRP of the transmission beam as the one or more relatively good transmission beams. Moreover, by measuring the same transmission beam of the network device through different receiving beams, the terminal device can obtain multiple relatively good receiving beams, and thus can obtain multiple relatively good beam pairs for communication (a beam pair includes a transmission beam of a network device and a receiving beam of a terminal device).

[0137] Here, the transmission beams of the network device included in different beam pairs among the multiple beam pairs may be the same or different, and the receiving beams of the terminal device included in different beam pairs among the multiple beam pairs may be the same or different. That is to say, one transmission beam may correspond to multiple receiving beams, or multiple transmission beams may correspond to one receiving beam, or the transmission beam and the receiving beam are in one-to-one correspondence. For example, the multiple beam pairs may include <transmission beam #1, receiving beam #1> and <transmission beam #1, receiving beam #2>, or the multiple beam pairs may include <transmission beam #1, receiving beam #1> and <transmission beam #2, receiving beam #1>, or the multiple beam pairs may include <transmission beam #1, receiving beam #1>, <transmission beam #2, receiving beam #2>.

[0138] To enable those skilled in the art to better understand this application, in the following, it is exemplified by the multiple beam pairs including: <transmission beam #1, reception beam #1>, <transmission beam #2, reception beam #2>, <transmission beam #3, reception beam #3>, <transmission beam #4, reception beam #4>.

[0139] The reception beams of the terminal device in the above multiple beam pairs may belong to different antenna panels. For example, referring to Figure 1 , reception beam #1 and reception beam #2 belong to antenna panel #1 of the terminal device, and reception beam #1 and reception beam #2 belong to antenna panel #2 of the terminal device.

[0140] In the embodiments of this application, the terminal device can maintain the corresponding relationship among the transmission beams of the network device, the reception beams of the terminal device, and the antenna panels of the terminal device. For example, the corresponding relationship among the transmission beams of the network device, the reception beams of the terminal device, and the antenna panels of the terminal device maintained by the terminal device is shown in Table 1.

[0141] Table 1

[0142] Antenna panel Receiving beam Transmitting beam Antenna panel #1 Receiving beam #1 Transmitting beam #1 Antenna panel #1 Receiving beam #2 Transmitting beam #2 Antenna panel #2 Receiving beam #3 Transmitting beam #3 Antenna panel #2 Receiving beam #4 Transmitting beam #4

[0143] Step 3: The terminal device sends beam measurement information to the network device. This beam measurement information is used to indicate the one or more target transmission beams and the antenna panels of the terminal device corresponding to the one or more target transmission beams respectively. Correspondingly, the network device receives the beam measurement information sent by the terminal device.

[0144] Specifically, after the terminal device obtains multiple better transmission beams of the network device, it can feedback the beam measurement information of the multiple better transmission beams to the network device. This beam measurement information is used to indicate the transmission beam and the antenna panel of the terminal device corresponding to this transmission beam. For example, this beam measurement information may include the index of this transmission beam and the index of the antenna panel of the terminal device corresponding to this transmission beam. Further, this beam measurement information may also include the index of the reception beam of the terminal device corresponding to this transmission beam. It should be understood that the antenna panel of the terminal device corresponding to this transmission beam, that is, the antenna panel to which the reception beam corresponding to this transmission beam belongs. For example, referring to Figure 1 , the antenna panel corresponding to transmission beam #1 is antenna panel #1 where reception beam #1 is located. In addition, this beam measurement information may also include the RSRP of the transmission beam, but the embodiments of this application do not limit this.

[0145] In a possible implementation, after the terminal device determines the multiple beam pairs described above, it may explicitly feedback the indices of the multiple transmit beams and the index of the corresponding antenna panel of the terminal device. For example, the beam measurement information fed back by the terminal device may be in the following form:

[0146] {Transmit beam #1, Antenna panel #1,...}; {Transmit beam #2, Antenna panel #2,...}; {Transmit beam #3, Antenna panel #3,...}; {Transmit beam #4, Antenna panel #4,...}.

[0147] It should be understood that the ellipsis here indicates that the terminal device may also feedback other information in addition to the indices of the transmit beams and the antenna panel, such as the beam quality of the transmit beams, including RSRP, received signal strength indicator (RSSI), reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), channel quality indicator (CQI), rank indicator (RI), precoding matrix indicator (PMI), etc.

[0148] In another possible implementation, after the terminal device determines the multiple beam pairs described above, it may feedback the antenna panel of the transmit beam corresponding to the terminal device by feeding back the grouping information of the transmit beams. For example, the terminal device may group the beams received by the same antenna panel into one group. The beam measurement information fed back by the terminal device may be in the following form:

[0149] {Group #1, Transmit beam #1, Transmit beam #2,...}; {Group #2, Transmit beam #3, Transmit beam #4,...}.

[0150] According to the above grouping information fed back by the terminal device, the network device may determine that the antenna panels of the terminal device corresponding to transmit beam #1 and transmit beam #2 belong to one antenna panel, and the antenna panels of the terminal device corresponding to transmit beam #3 and transmit beam #4 belong to another antenna panel.

[0151] It should be understood that the ellipsis here indicates that the terminal device may also feedback other information in addition to the indices of the transmit beams and the antenna panel, such as the beam quality of the transmit beams, including RSRP, RSRQ, RSSI, SINR, CQI, RI, PMI, etc.

[0152] Optionally, the terminal device may also group the beams received by different antenna panels. The beam measurement information fed back by the terminal device may be in the following form:

[0153] {group#1, transmit beam #1, transmit beam #3,...}; {group#2, transmit beam #2, transmit beam #4,...}.

[0154] According to the above grouping information fed back by the terminal device, the network device may determine that the antenna panels of the terminal device corresponding to transmit beam #1 and transmit beam #3 are different, and the antenna panels of the terminal device corresponding to transmit beam #2 and transmit beam #4 are different.

[0155] Optionally, the terminal device may also report only the beams received by the same antenna panel in one report and report the beams received by different antenna panels in different reports. The beam measurement information fed back by the terminal device may be in the following form:

[0156] First report: transmit beam #1, transmit beam #2,...

[0157] Second report: transmit beam #3, transmit beam #4,..

[0158] According to the above grouping information fed back by the terminal device, the network device may determine that the antenna panels of the terminal device corresponding to transmit beam #1 and transmit beam #2 belong to one antenna panel, and the antenna panels of the terminal device corresponding to transmit beam #3 and transmit beam #4 belong to another antenna panel.

[0159] Optionally, the terminal device may also report only the beams received by different antenna panels in one report. The beam measurement information fed back by the terminal device may be in the following form:

[0160] First report: transmit beam #1, transmit beam #3,...

[0161] Second report: transmit beam #2, transmit beam #4,..

[0162] According to the above grouping information fed back by the terminal device, the network device may determine that the antenna panels of the terminal device corresponding to transmit beam #1 and transmit beam #3 are different, and the antenna panels of the terminal device corresponding to transmit beam #2 and transmit beam #4 are different.

[0163] Optionally, which grouping method the terminal device specifically adopts may be predefined by the protocol, or indicated by the network device, or determined independently and the grouping principle is notified to the network device.

[0164] It should be understood that the communication system 100 may further include more network devices and terminal devices, which are not shown one by one here. Additionally, the terminal device may also include more antenna panels and beams, which are not shown one by one here. The network device may also include multiple antenna panels. For example, transmission beam #1 and transmission beam #2 belong to one antenna panel, and transmission beam #3 and transmission beam #4 belong to another antenna panel.

[0165] Correspondingly, the network device may also notify the terminal device of the antenna panel information of the transmission beam. For example, the network device divides the beams of the same antenna panel into a group. Taking CSI-RS as an example, the network device may configure multiple CSI-RS resource sets, and the CSI-RS resources in each CSI-RS resource set correspond to the beams of the same network device antenna panel. Further, the network device may configure the terminal device to feedback for each CSI-RS resource set respectively. For example, the CSI-RS resources from different CSI-RS resource sets that can be received simultaneously by the same terminal device antenna panel are divided into a group. In this way, the terminal device can know which transmission beams the network device can transmit simultaneously, and the network device can know which transmission beams can serve the terminal device simultaneously.

[0166] In summary, through the above steps 1 to 3, both the terminal device and the network device can obtain the multiple beam pairs for communication, and the antenna panel of the terminal device corresponding to each beam pair, or rather, the antenna panel of the terminal device corresponding to the transmission beam or the reception beam in each beam pair.

[0167] Hereinafter, Figure 1 in combination with the system 100 shown and the description of beam training, the communication method of the embodiments of the present application will be described.

[0168] Figure 2 is a schematic flowchart of the communication method according to the embodiments of the present application. As Figure 2 shown, the method 200 mainly includes S210 to S230. It should be understood that Figure 2 the network device in the method 200 shown may be Figure 1 the network device 110 in the system shown, and the terminal device may be Figure 1 the terminal device 120 in the system shown.

[0169] S210, the network device determines the position of the signal to be transmitted in the time domain.

[0170] S220. The terminal device receives control information sent by the network device based on the first receiving parameter. Correspondingly, the network device sends the control information to the terminal device. The control information is used to indicate the second receiving parameter and the position of the signal to be transmitted scheduled by the control information in the time domain.

[0171] It should be understood that the "receiving parameter" in this application can be understood as the "receiving beam", and the receiving beam is the receiving beam of the terminal device. To help those skilled in the art better understand this application, in the following method embodiments, the "receiving beam" is used to replace the "receiving parameter" to describe the embodiments of this application. It should be understood that the "receiving beam" above can also be replaced by the "receiving parameter". The terminal device and the network device communicate in the form of beams. The terminal device can determine the corresponding receiving beam according to the transmitting beam of the network device. Therefore, during downlink scheduling transmission, the network device can indicate the receiving beam of the terminal device to the terminal device by sending beam indication information of the transmitting beam of the network device or beam indication information of the receiving beam of the terminal device to the terminal device. Therefore, "A indicates the receiving parameter" and "A indicates the transmitting beam" are equivalent concepts. For example, the control information being used to indicate the second receiving parameter and the control information being used to indicate the second transmitting beam are equivalent concepts. Here, the second receiving parameter corresponds to the second transmitting beam. When the network device transmits through the second transmitting beam, the terminal device receives through the second receiving parameter. The beam indication information can be the identifier or index of the beam, etc. For specific details, refer to the description of the beam indication information in the text, which will not be elaborated here.

[0172] In the following, S210 to S220 will be described in detail in two scenarios.

[0173] Scenario 1: The network device determines the beam switching time required for the terminal device to switch from the first receiving parameter to the second receiving parameter according to the antenna panel to which the first receiving parameter belongs and the antenna panel to which the second receiving parameter belongs. Then, according to the beam switching time required for the terminal device to switch from the first receiving parameter to the second receiving parameter, the network device determines the position of the signal to be transmitted in the time domain.

[0174] Specifically, for example, if the signal to be transmitted is data of general services, the network device can determine a transmission beam for transmitting the signal to be transmitted (for example, denoted as the second transmission beam) from its transmission beams. Before that, the network device also needs to determine a transmission beam for transmitting control information (for example, denoted as the first transmission beam). The first transmission beam and the second transmission beam can be the same beam or different beams. Since the network device and the terminal device communicate in the form of beam pairs, determining the transmission beam by the network device can also be understood as the network device determining the receiving beam of the terminal device. When the network device determines the transmission beam, for example, the network device can select the transmission beam with a larger RSRP of the transmission beam feedback by the terminal device. It should be understood that the embodiments of the present application do not limit how the network device selects the transmission beam or the receiving beam.

[0175] After or at the same time as determining the first transmission beam and the second transmission beam or determining the first receiving beam and the second receiving beam, the network device can determine the antenna panel of the terminal device to which the first receiving beam and the second receiving beam belong respectively, or determine whether the first receiving beam and the second receiving beam belong to the same antenna panel of the terminal device. And according to the antenna panels to which the first receiving beam and the second receiving beam belong respectively, the network device determines the beam switching time t required for the terminal device to switch from the first receiving parameter to the second receiving parameter. After determining the beam switching time t, the network device can set the time interval oft between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain to be greater than or equal to the beam switching time t. In this way, the terminal device can switch from the first receiving beam to the second receiving beam before or when the position of the signal to be transmitted in the time domain arrives, and receive the signal to be transmitted through the second receiving beam. For example, if the switching time required for the terminal device to switch from the first receiving parameter to the second receiving parameter is 2 milliseconds (ms), the network device can set the time interval oft to 2 ms or any time greater than 2 ms.

[0176] Optionally, as an embodiment of this application, before S210, the network device and the terminal device may perform steps 1 to 3 described above, so that based on the beam measurement information fed back by the terminal device, the network device can determine the antenna panel of the terminal device to which the first receiving beam and the second receiving beam belong respectively, or in other words, can determine whether the first receiving beam and the second receiving beam belong to the same antenna panel of the terminal device. For example, referring to Table 1 above, if the first transmission beam is transmission beam #1 and the second transmission beam is transmission beam #2, it can be determined that the antenna panels of the terminal device corresponding to the first transmission beam and the terminal device corresponding to the second transmission beam are both antenna panel #1. If the first transmission beam is transmission beam #1 and the second transmission beam is transmission beam #3, it can be determined that the antenna panel of the terminal device corresponding to the first transmission beam is antenna panel #1, and the antenna panel of the terminal device corresponding to the second transmission beam is antenna panel #2. Generally, the beam switching time required for two beams belonging to different antenna panels is greater than the beam switching time required for two beams belonging to the same antenna panel, but this application does not exclude other possibilities.

[0177] Optionally, as an embodiment of this application, before 210, the method may further include:

[0178] S201, the terminal device sends beam switching capability information to the network device. Correspondingly, the network device receives the beam switching capability information sent by the terminal device.

[0179] The beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the terminal device, and the second switching time required for switching between any two beams on different antenna panels of the terminal device. Alternatively, the beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the terminal device, and the third switching time required for switching between any two antenna panels of the terminal device.

[0180] That is to say, the time required for the terminal device to switch from one beam within an antenna panel to another beam within the same antenna panel is the first switching time, such as 2 ms. The time required for the terminal device to switch from one beam within an antenna panel to one beam within another antenna panel is the second switching time, such as 10 ms. The time required for the terminal device to switch from one antenna panel to another antenna panel is the third switching time, such as 8 ms. The time required for the terminal device to switch from one beam within the one antenna panel to another beam within the other antenna panel is at least 2 ms + 8 ms. That is to say, the second switching time is greater than or equal to the sum of the third switching time and the first switching time.

[0181] Therefore, after the network device learns the first handover time and / or the second handover time according to the beam switching capability information, or learns the first handover time and the third handover time, when the first receiving beam and the second receiving beam belong to the same antenna panel, the network device can determine that the beam switching time t is the first handover time. Alternatively, when the first receiving beam and the second receiving beam belong to different antenna panels, the network device determines that the beam switching time t is the second handover time or the sum of the first handover time and the third handover time.

[0182] It should be noted that, depending on the capabilities of the terminal device, the time required for any two beams to switch within one antenna panel of the terminal device may be different from the time required for any two beams to switch within another antenna panel of the terminal device, or the time required for the terminal device to switch from a beam within one antenna panel (e.g., the first antenna panel) to a beam within another antenna panel (e.g., the second antenna panel) may be different from the time required for the terminal device to switch from a beam within the first antenna panel to a beam within the third antenna panel. In this case, the terminal device needs to indicate these switching situations and the corresponding switching times in the beam switching capability information it reports. For example, if the time required to switch from the first antenna panel to the second antenna panel, the time required to switch from the second antenna panel to the first antenna panel, and the time required to switch from the first antenna panel to the third antenna panel are all different, then the reported beam switching capability information may include the time required to switch from the first antenna panel to the second antenna panel, the time required to switch from the second antenna panel to the first antenna panel, and the time required to switch from the first antenna panel to the third antenna panel. It should be understood that the above first, second, and third can also be extended to the first type, the second type, and the third type. For example, the first type of antenna panel is driven by one radio frequency link, and the second type is driven by two radio frequency links.

[0183] It should be understood that S201 can be executed after the terminal device accesses the network and establishes a connection with the network device, but the embodiments of the present application do not limit this. Further, the terminal device can transmit the beam switching capability information through the uplink data channel.

[0184] Optionally, as an embodiment of the present application, the network device may autonomously determine the beam switching time t. For example, the system may set that only the terminal device satisfying the following conditions can access the network: the time required for beam switching between any two beams within the same antenna panel is the first switching time, and the time required for beam switching between any two beams on different antenna panels is the second switching time, or the time required for beam switching between any two beams within the same antenna panel is the first switching time, and the time required for switching between any two antenna panels is the third switching time. In this way, as long as the terminal device can access the network, the network device can determine the beam switching time t according to whether the first receiving beam and the second receiving beam belong to the same antenna panel of the terminal device.

[0185] It should be noted that the switching from the first receiving beam to the second receiving beam described in the present application refers to the time required from when the terminal device receives the control information and decodes the control information to obtain the second receiving beam until it switches to the second receiving beam. That is to say, the beam switching time t described in the present application includes the time required for the terminal device to decode the control information and the time required for the terminal device to perform beam switching after decoding the control information. The first switching time includes the time required for the terminal device to decode the control information and the time required for the terminal device to perform beam switching after decoding the control information. The second switching time includes the time required for the terminal device to decode the control information and the time required for the terminal device to perform beam switching after decoding the control information.

[0186] Scenario 2

[0187] The network device may not determine the position of the signal to be transmitted in the time domain according to the beam switching time required by the terminal device.

[0188] For example, when the signal to be transmitted is emergency service data, the network device may also determine the first receiving beam and the second receiving beam as described above. However, considering information such as service delay requirements, the network device may not consider the beam switching time t and set the time interval oft to be less than the beam switching time t.

[0189] Furthermore, considering the format of the control information that continues to use the existing protocol, the network device may indicate the second receiving beam to the terminal through this control information.

[0190] Optionally, as an embodiment of this application, after determining the first transmission beam, the network device may notify the terminal device of the first transmission beam through RRC signaling and / or other signaling. That is, the RRC signaling and / or other signaling is used to indicate the first transmission beam. Since the first transmission beam corresponds to the first reception beam, it can also be understood that the RRC signaling and / or other signaling is used to indicate the first reception beam. For example, the RRC signaling may carry a list, and the list may include the indices of the first transmission beams corresponding to the possible first reception beams, or the list may include the indices of the possible first reception beams, and one can be selected from the list by other signaling such as MAC-CE signaling. According to the RRC signaling and / or other signaling, the terminal device can learn that it needs to receive the control information using the first reception beam.

[0191] Optionally, as an embodiment of this application, the control information may carry the index of the second transmission beam corresponding to the second reception beam or carry the index of the second reception beam. For another example, the network device may indicate the second reception beam to the terminal in the form of a bitmap. For example, if the transmission beams of the network device feedback by the terminal device are transmission beam #1 to transmission beam #4, and the second transmission beam is transmission beam #2, then the network device may indicate the transmission beam #2 by setting the bit corresponding to transmission beam #2 to 0 or 1. For example, the bitmap sent by the network device is "0100" or "1011". According to the control information, the terminal device can learn that it needs to receive the control information using the second reception beam.

[0192] Optionally, as an embodiment of this application, the network device may explicitly or implicitly indicate information about the antenna panel to the terminal device. For example, it may include information about the transmission antenna panel and / or the reception antenna panel. The network device indicating the antenna panel information may be in one of the following forms:

[0193] A: {Transmission antenna panel of the network device, transmission beam of the network device, reception antenna panel of the terminal device, reception beam of the terminal device}

[0194] B: {Transmission beam of the network device, reception antenna panel of the terminal device, reception beam of the terminal device}

[0195] C: {Transmission beam of the network device, reception beam of the terminal device}

[0196] D: {Transmission antenna panel of the network device, transmission beam of the network device}

[0197] E: {Transmission beam of the network device}

[0198] F: {Reception antenna panel of the terminal device, reception beam of the terminal device}

[0199] G: {Receiving antenna panel of the terminal device}

[0200] S230. The terminal device determines the beam switching time t required for it to switch from the first receiving beam to the second receiving beam according to the antenna panel to which the first receiving beam belongs and the antenna panel to which the second receiving beam belongs.

[0201] Optionally, when the first receiving beam and the second receiving beam belong to the same antenna panel, the terminal device may determine the beam switching time t as the first switching time.

[0202] Optionally, when the first receiving beam and the second receiving beam belong to different antenna panels, the terminal device may determine the beam switching time t as the second switching time, or determine that the beam switching time t is greater than or equal to the sum of the first switching time and the third switching time. Herein, the third switching time is the time required for the terminal device to switch between any two antenna panels.

[0203] S240. The network device transmits the signal to be transmitted. Correspondingly, the terminal device receives the signal to be transmitted according to the determined beam switching time t.

[0204] Specifically, in the above scenario 1, the network device may transmit the signal to be transmitted at the position in the time domain of the signal to be transmitted after the beam switching time t (such as 2 ms) through the second transmission beam. In scenario 2, the network device may transmit the signal to be transmitted through the preset transmission beam before the beam switching time t arrives, for example, at the 1st ms. The terminal device may determine the receiving beam used for it to receive the signal to be transmitted according to the magnitude relationship between the time interval oft between the position in the time domain of the signal to be transmitted and the position in the time domain of the control information and the beam switching time t, and receive the signal to be transmitted according to the determined receiving beam.

[0205] Hereinafter, in combination with case 1 and case 2, the receiving operation performed by the terminal device in S240 will be described.

[0206] In a possible implementation manner, when the first receiving beam and the second receiving beam belong to the same antenna panel (i.e., case 1), the terminal device receives the signal to be transmitted according to the magnitude relationship between the time interval oft and the first switching time. When the first receiving beam and the second receiving beam belong to different antenna panels (i.e., case 2), the terminal device receives the signal to be transmitted according to the magnitude relationship between the time interval oft and the second switching time or the magnitude relationship between the time interval oft and the sum of the first switching time and the third switching time.

[0207] Next, taking the control information as DCI, the signal to be transmitted as PDSCH or the signal carried on PDSCH as an example, and taking the first receiving beam as receiving beam #1, and the second receiving beams as receiving beam #2 and receiving beam #3 respectively, for different situations, in combination with Figure 3 and Figure 4 this will be described in detail. Here, the correspondence between the receiving beam and the antenna panel can be seen in Table 1 and Figure 1 . It should be understood that the signal to be transmitted can also be CSI-RS or other signals, and the embodiments of the present application do not limit this.

[0208] Situation 1: Refer to Figure 3 , after a duration t1 after the time point when the terminal device receives the DCI through receiving beam #1, the DCI can be decoded, and it is known that it is necessary to receive the PDSCH from receiving beam #2 and the time interval oft#1 between the position of the DCI in the time domain and the position of the PDSCH in the time domain. Since receiving beam #1 and receiving beam #2 are located on the same antenna panel, the terminal device needs to compare the first switching time t1 + t2 and oft#1. If oft#1 ≥ t1 + t2, the terminal device can receive the PDSCH through receiving beam #2 at the position of the PDSCH in the time domain. If oft#1 < t1 + t2, then the terminal device needs to receive the PDSCH using the preset receiving beam. Further, the preset receiving beam can be the beam used to receive the DCI, that is, receiving beam #1 here. It should be understood that t2 is the time required for the terminal device to switch from receiving beam #1 to receiving beam #2 after decoding the DCI.

[0209] Situation 2

[0210] Refer to Figure 4 , after a duration t1 after the time point when the terminal device receives the DCI through receiving beam #1, the DCI can be decoded, and it is known that it is necessary to receive the PDSCH from receiving beam #3 and the time interval oft#2 between the position of the DCI in the time domain and the position of the PDSCH in the time domain. Since receiving beam #1 and receiving beam #3 are located on different antenna panels, the terminal device needs to compare the second switching time t1 + t3 and oft#2. If oft#2 ≥ t1 + t3, the terminal device can receive the PDSCH through receiving beam #3 at the position of the PDSCH in the time domain. If oft#2 < t1 + t3, then the terminal device needs to receive the PDSCH using the preset receiving beam. Further, the preset receiving beam can be the beam used to receive the DCI, that is, receiving beam #1 here. It should be understood that t3 is the time required for the terminal device to switch from receiving beam #1 to receiving beam #3 after decoding the DCI.

[0211] It should be understood that the preset receiving beam corresponds to the preset transmitting beam, or the preset receiving beam and the preset transmitting beam are a pair of beam pairs.

[0212] It should be understood that after the terminal device learns that it needs to receive the #3 received PDSCH from the receiving beam and the time interval oft#2 between the position of the DCI in the time domain and the position of the PDSCH in the time domain, the terminal device can also compare oft#2 with the sum of the first switching time and the third switching time.

[0213] In the embodiments of the present application, before decoding the DCI, the terminal device cannot determine the receiving beam for receiving the PDSCH indicated by the network device, nor can it determine the magnitude of the time interval between the position of the DCI in the time domain and the position of the PDSCH in the time domain. At this time, the terminal device can use the preset receiving beam to buffer the received signal within the time period of t1 + t2 or within the time period of t1 + t3. Alternatively, the terminal device can also use the preset receiving beam to buffer the received signal within the time period of t1. If oft#1 ≥ t1 + t2, or oft#2 ≥ t1 + t3, the terminal device can clear the buffer and receive the PDSCH at the position of the PDSCH in the time domain.

[0214] In addition, as an embodiment of the present application, the preset receiving beam can be the receiving beam corresponding to the control channel resource set with the lowest indication, or the receiving beam corresponding to the control channel resource set with the lowest indication corresponding to the current antenna panel of the terminal device.

[0215] The current antenna panel of the terminal device refers to the antenna panel corresponding to the first receiving beam. For example, the antenna panel corresponding to the first receiving beam is antenna panel #1, and the receiving beams and antenna panels corresponding to the control channel resource sets are: {the first control channel resource set, antenna panel #2, receiving beam #x}; {the second control channel resource set, antenna panel #1, receiving beam #y}; {the third control channel resource set, antenna panel #1, receiving beam #z}. In this case, the preset beam should be the beam #y corresponding to the second control channel resource set, rather than the receiving beam #x corresponding to the first control channel resource set.

[0216] Optionally, the preset receiving beam can also be the receiving beam used for random access corresponding to the current antenna panel of the terminal device. That is to say, if the receiving beam #A in the current antenna panel of the terminal device is used for the previous random access process, then the receiving beam #A is used as the preset receiving beam.

[0217] Optionally, the preset receiving beam can also be the receiving beam corresponding to the most recent successful transmission of the current antenna panel of the terminal device.

[0218] Therefore, according to the method of the embodiments of the present application, the terminal device does not consider that the beam switching times required for the receiving beams of any two terminal devices are the same, and receive the signal to be transmitted according to this beam switching time. Instead, it needs to determine the beam switching time according to whether these two receiving beams belong to the same antenna panel, and receive the signal to be transmitted according to this switching time. Since the beam switching time required for switching between any two beams within an antenna panel is different from the beam switching time required for switching between any two beams between antenna panels, compared with the prior art, the terminal device can receive the signal to be transmitted more accurately according to this beam switching time.

[0219] In addition, the network device determines the beam switching time required for the terminal device to switch from the receiving beam of the control information to the receiving beam of the signal to be transmitted according to whether the antenna panel to which the receiving beam of the control information belongs is the same as the antenna panel to which the receiving beam of the signal to be transmitted belongs (this beam switching time includes the time required for the terminal device to decode the control information), and reasonably sets the time interval between the position of the control information and the position of the signal to be transmitted in the time domain according to this beam switching time, so as to achieve reasonable scheduling of the terminal device.

[0220] The communication method examples provided in the present application are introduced in detail above. It can be understood that in order to implement the above functions, the terminal device and the network device include the corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should easily realize that, combining the units and algorithm steps of each example described in the embodiments disclosed in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0221] Figure 5 The structural schematic diagram of the communication device provided in the present application is shown. The communication device 500 includes: a receiving unit 510 and a processing unit 520. Optionally, the communication device 500 may further include a sending unit 530.

[0222] The receiving unit 510 is configured to receive control information sent by the network device through a first receiving parameter, where the control information is used to indicate a second receiving parameter, and the second receiving parameter is used for the communication device to receive a signal to be transmitted;

[0223] The processing unit 520 is configured to determine the beam switching time required to switch from the first receiving parameter to the second receiving parameter according to the antenna panel to which the first receiving parameter belongs and the antenna panel to which the second receiving parameter belongs;

[0224] The receiving unit 510 is further configured to receive the signal to be transmitted according to the beam switching time.

[0225] Optionally, the receiving unit 510 is further configured to receive reference signals sent by the network device through one or more reference signal resources;

[0226] The processing unit 520 is further configured to determine one or more target reference signal resources and a plurality of reception parameters corresponding to the one or more target reference signal resources, and determine the antenna panels of the communication device corresponding to the plurality of reception parameters according to the measurement of the reference signals, where the one or more target reference signal resources are part or all of the one or more reference signal resources, and the plurality of reception parameters include the first reception parameter and the second reception parameter;

[0227] And a sending unit 530, configured to send beam measurement information to the network device, where the beam measurement information is used to indicate the one or more target reference signal resources and the antenna panels of the communication device corresponding to the one or more target reference signal resources respectively.

[0228] Optionally, the sending unit 530 is configured to send beam switching capability information to the network device, where the beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the communication device, and the second switching time required for switching between any two beams on different antenna panels of the communication device, or the beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the communication device, and the third switching time required for switching between any two antenna panels of the communication device.

[0229] Optionally, the processing unit 520 is specifically configured to:

[0230] When the first reception parameter and the second reception parameter belong to the same antenna panel, determine the beam switching time as the first switching time; or,

[0231] When the first reception parameter and the second reception parameter belong to different antenna panels, determine the beam switching time as the second switching time, or determine that the beam switching time is greater than or equal to the sum of the first switching time and the third switching time.

[0232] Optionally, the control information is further used to indicate the position of the signal to be transmitted in the time domain;

[0233] Wherein, the receiving unit is specifically used for one or more of the following:

[0234] When the first receiving parameter and the second receiving parameter belong to the same antenna panel, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the first switching time, the signal to be transmitted is received at the position of the signal to be transmitted in the time domain through the second receiving parameter;

[0235] When the first receiving parameter and the second receiving parameter belong to the same antenna panel, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is less than the first switching time, the signal to be transmitted is received at the position of the signal to be transmitted in the time domain through a preset receiving parameter;

[0236] When the first receiving parameter and the second receiving parameter belong to different antenna panels, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the second switching time, or greater than or equal to the sum of the first switching time and the third switching time, the signal to be transmitted is received at the position of the signal to be transmitted in the time domain through the second receiving parameter;

[0237] When the first receiving parameter and the second receiving parameter belong to different antenna panels, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is less than the second switching time, or less than the sum of the first switching time and the third switching time, the signal to be transmitted is received at the position of the signal to be transmitted in the time domain through a preset receiving parameter.

[0238] The communication device 500 is a communication equipment or can also be a chip within the communication equipment. When the communication device is a communication equipment, the processing unit can be a processor, and the receiving unit and / or the sending unit can be a transceiver; the communication equipment can also include a storage unit, and the storage unit can be a memory; the storage unit is used for storing instructions, and the processing unit executes the instructions stored in the storage unit so that the communication equipment executes the above method. When the communication device is a chip within the communication equipment, the processing unit can be a processor, and the receiving unit and / or the sending unit can be an input / output interface, a pin or a circuit, etc.; the processing unit executes the instructions stored in the storage unit so that the communication device executes the operations performed by the terminal device in the above method, and the storage unit can be a storage unit within the chip (for example, a register, a cache, etc.), or can also be a storage unit outside the chip within the communication equipment (for example, a read-only memory, a random access memory, etc.)

[0239] Those skilled in the art can clearly understand that the steps performed by the communication device 500 and the corresponding beneficial effects can refer to the relevant descriptions of the terminal device in the above method. For the sake of brevity, they will not be repeated here.

[0240] Figure 6 Fig. shows a schematic structural diagram of a communication device provided by the present application. The communication device 600 includes a processing unit 610 and a transmitting unit 620. Optionally, the communication device 600 may further include a receiving unit 630. The processing unit 610 is configured to determine the beam switching time required for the terminal device to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs, where the first reception parameter is used for the terminal device to receive control information, and the second reception parameter is used for the terminal device to receive a signal to be transmitted;

[0241] The processing unit 610 is further configured to determine the position of the signal to be transmitted in the time domain according to the beam switching time;

[0242] The transmitting unit 620 is configured to send control information to the terminal device, where the control information is used to indicate the second reception parameter and the position of the signal to be transmitted in the time domain;

[0243] The transmitting unit 620 is further configured to send the signal to be transmitted to the terminal device according to the position of the signal to be transmitted in the time domain.

[0244] Optionally, the transmitting unit 620 is further configured to:

[0245] Send reference signals through one or more reference signal resources;

[0246] And the receiving unit 630 is configured to receive beam measurement information sent by the terminal device, where the beam measurement information is used to indicate one or more target reference signal resources and the antenna panels of the terminal device corresponding to the one or more target reference signal resources respectively, where the one or more target reference signal resources are part or all of the one or more reference signal resources, and the one or more target reference signal resources correspond to multiple reception parameters, and the multiple reception parameters include the first reception parameter and the second reception parameter.

[0247] Optionally, a receiving unit 630 is configured to receive beam switching capability information sent by the terminal device. The beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the terminal device, and the second switching time required for switching between any two beams on different antenna panels of the terminal device. Alternatively, the beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the terminal device, and the third switching time required for switching between any two antenna panels of the terminal device.

[0248] Optionally, the processing unit 610 is specifically configured to:

[0249] When the first reception parameter and the second reception parameter belong to the same antenna panel, determine the beam switching time as the first switching time; or,

[0250] When the first reception parameter and the second reception parameter belong to different antenna panels, determine the beam switching time as the second switching time, or determine that the beam switching time is greater than or equal to the sum of the first switching time and the third switching time.

[0251] Optionally, the processing unit 610 is specifically configured to:

[0252] When the first reception parameter and the second reception parameter belong to the same antenna panel, determine that the time interval between the position of the to-be-transmitted signal in the time domain and the position of the control information in the time domain is greater than or equal to the first switching time; and / or

[0253] When the first reception parameter and the second reception parameter belong to different antenna panels, determine that the time interval between the position of the to-be-transmitted signal in the time domain and the position of the control information in the time domain is greater than or equal to the second switching time, or greater than or equal to the sum of the first switching time and the third switching time.

[0254] Optionally, the control information is downlink control information DCI, and the to-be-transmitted signal is a physical downlink shared channel PDSCH.

[0255] The communication device 600 is a communication equipment, or can also be a chip within the communication equipment. When the communication device is a communication equipment, the processing unit can be a processor, and the receiving unit and / or the sending unit can be a transceiver; the communication equipment can also include a storage unit, and the storage unit can be a memory; the storage unit is used for storing instructions, and the processing unit executes the instructions stored in the storage unit so that the communication equipment executes the above method. When the device is a chip within the communication device, the processing unit can be a processor, and the receiving unit and / or the sending unit can be an input / output interface, a pin, a circuit, etc.; the processing unit executes the instructions stored in the storage unit so that the communication device executes the operations performed by the network equipment in the above method, and the storage unit can be a storage unit within the chip (for example, a register, a cache, etc.), or can also be a storage unit outside the chip within the communication equipment (for example, a read-only memory, a random access memory, etc.)

[0256] Those skilled in the art can clearly understand that the steps executed by the communication device 600 and the corresponding beneficial effects can refer to the relevant descriptions of the network equipment in the above method. For the sake of brevity, they will not be elaborated here

[0257] In the above device embodiments of each item, the network equipment corresponds exactly to the network equipment or the terminal equipment in the method embodiments. The corresponding steps are executed by the corresponding modules or units. For example, the sending unit (transmitter) executes the sending steps in the method embodiments, and the receiving unit (receiver) executes the receiving steps in the method embodiments. Other steps except sending and receiving can be executed by the processing unit (processor). The functions of the specific units can refer to the corresponding method embodiments. The sending unit and the receiving unit can form a transceiver unit, and the transmitter and the receiver can form a transceiver, jointly implementing the transceiver function; the processor can be one or more

[0258] It should be understood that the above division of each unit is only a functional division, and there may be other division methods in actual implementation

[0259] Those skilled in the art can clearly understand that the specific working processes of the above-described devices and units and the technical effects generated by executing the steps can refer to the descriptions in the corresponding method embodiments mentioned above. For the sake of brevity, they will not be elaborated here

[0260] The above terminal equipment or network equipment can be a chip. The processing unit can be implemented by hardware or by software. When implemented by hardware, the processing unit can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processing unit can be a general-purpose processor, which is implemented by reading the software code stored in the storage unit. The storage unit can be integrated in the processor or can exist independently outside the processor

[0261] Figure 7 This is a schematic structural diagram of a terminal device 10 provided for this application. For ease of explanation, Figure 7 only the main components of the terminal device are shown. As Figure 7 shown, the terminal device 10 includes a processor, a memory, a control circuit, an antenna, and an input / output device.

[0262] The processor is mainly used to process communication protocols and communication data, and to control the entire terminal device, execute software programs, and process the data of software programs. For example, it is used to support the terminal device to perform the actions described in the above communication method embodiments. The memory is mainly used to store software programs and data. For example, it stores the QCL information or TCI state described in the above embodiments. The control circuit is mainly used for the conversion between baseband signals and radio frequency signals and the processing of radio frequency signals. The control circuit and the antenna together can also be called a transceiver, which is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. The input / output device, such as a touch screen, a display screen, a keyboard, etc., is mainly used to receive data input by the user and output data to the user.

[0263] After the terminal device is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be wirelessly transmitted, the processor performs baseband processing on the data to be transmitted and then outputs a baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0264] Those skilled in the art can understand that for ease of explanation, Figure 7 only one memory and one processor are shown. In an actual terminal device, there may be multiple processors and memories. The memory can also be referred to as a storage medium or a storage device, etc. The embodiments of this application do not limit this.

[0265] As an optional implementation manner, the processor may include a baseband processor and a central processor. The baseband processor is mainly used to process communication protocols and communication data, and the central processor is mainly used to control the entire terminal device, execute software programs, and process the data of software programs. Figure 7The processor therein integrates the functions of a baseband processor and a central processor. Those skilled in the art can understand that the baseband processor and the central processor can also be independent processors, interconnected through technologies such as a bus. Those skilled in the art can understand that the terminal device can include multiple baseband processors to adapt to different network modes, and the terminal device can include multiple central processors to enhance its processing capabilities. Each component of the terminal device can be connected through various buses. The baseband processor can also be referred to as a baseband processing circuit or a baseband processing chip. The central processor can also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.

[0266] Exemplarily, in the embodiments of the present application, an antenna with transceiver functions and a control circuit can be regarded as the transceiver unit 101 of the terminal device 10, and a processor with processing functions can be regarded as the processing unit 102 of the terminal device 10. As Figure 7 shown, the terminal device 10 includes a transceiver unit 101 and a processing unit 102. The transceiver unit can also be called a transceiver, a transceiver machine, a transceiver device, etc. Optionally, the device for implementing the receiving function in the transceiver unit 101 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 101 can be regarded as the sending unit, that is, the transceiver unit 101 includes a receiving unit and a sending unit. Exemplarily, the receiving unit can also be called a receiver, a receiver circuit, etc., and the sending unit can be called a transmitter, a transmitter, or a transmitting circuit, etc.

[0267] Figure 7 The terminal device shown can perform each action executed by the terminal device in the above method. Here, to avoid repetition, its detailed description is omitted.

[0268] Figure 8 is a schematic structural diagram of a network device provided by the present application. This network device can be, for example, a base station. As Figure 8 shown, this base station can be applied to such as Figure 1In the communication system shown, the functions of the network device in the foregoing method embodiments are performed. The base station 20 may include one or more radio frequency units, such as a remote radio unit (RRU) 201 and one or more baseband units (BBUs) (which may also be referred to as digital units (DUs)) 202. The RRU 201 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and may include at least one antenna 2011 and a radio frequency unit 2012. The RRU 201 part is mainly used for the transceiver of radio frequency signals and the conversion between radio frequency signals and baseband signals, for example, for transmitting the PDCCH and / or PDSCH in the foregoing method embodiments. The BBU 202 part is mainly used for baseband processing and controlling the base station, etc. The RRU 201 and the BBU 202 may be physically set together or physically separated, that is, a distributed base station.

[0269] The BBU 202 is the control center of the base station and may also be referred to as a processing unit, mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spreading, etc. For example, the BBU (processing unit) 202 may be used to control the base station to execute the operation process of the network device in the foregoing method embodiments.

[0270] In one embodiment, the BBU 202 may be composed of one or more single boards. The multiple single boards may jointly support a radio access network with a single access indication (such as an LTE network), or may separately support radio access networks with different access systems (such as an LTE network, a 5G network, or other networks). The BBU 202 further includes a memory 2021 and a processor 2022. The memory 2021 is used to store necessary instructions and data. For example, the memory 2021 stores the QCL information or TCI status in the foregoing method embodiments. The processor 2022 is used to control the base station to perform necessary actions, for example, to control the base station to execute the operation process of the network device in the foregoing method embodiments. The memory 2021 and the processor 2022 may serve one or more single boards. That is to say, a memory and a processor may be separately set on each single board. It is also possible that multiple single boards share the same memory and processor. In addition, necessary circuits may be provided on each single board.

[0271] This application also provides a communication system, which includes one or more of the foregoing network devices and one or more terminal devices.

[0272] It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiments can be completed by the integrated logic circuit in the hardware of the processor or instructions in the form of software. The above processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the methods disclosed in combination with the embodiments of the present application can be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by a combination of the hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps of the above method.

[0273] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include but not be limited to these and any other suitable types of memory.

[0274] The present application also provides a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a computer, it implements the functions of any one of the above method embodiments.

[0275] The present application also provides a computer program product, and when the computer program product is executed by a computer, it implements the functions of any one of the above method embodiments.

[0276] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired manner (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a high-definition digital video disc (DVD)), or a semiconductor medium (such as a solid-state drive (SSD)), etc.

[0277] It should be understood that the "embodiments" mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, the various embodiments mentioned throughout the specification do not necessarily refer to the same embodiments. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present application, the order numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0278] It should also be understood that in the present application, "when", "if", and "in case" all mean that under certain objective circumstances, the UE or the base station will perform corresponding processing. It does not limit the time, nor does it require the UE or the base station to have a judgment action when implemented, nor does it mean that there are other limitations.

[0279] In addition, the terms "system" and "network" are often used interchangeably in this document.

[0280] As used herein, the term "at least one of... " or "at least one kind of... " means all or any combination of the listed items. For example, "at least one of A, B, and C" can represent the following cases: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, B and C exist simultaneously, A, B, and C exist simultaneously, A and C exist simultaneously, and so on.

[0281] In this application, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the association relationship between associated objects and indicates that three relationships can exist. For example, A and / or B can represent the following cases: A exists alone, A and B exist simultaneously, and B exists alone. Here, A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0282] It should be understood that in each embodiment of this application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A. B can also be determined according to A and / or other information.

[0283] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0284] Through the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by hardware, firmware, or a combination thereof. When implemented using software, the above functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, where communication media includes any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium that can be accessed by a computer. By way of example but not limitation: computer-readable media can include RAM, ROM, EEPROM, CD-ROM, or other optical disk storage, magnetic disk storage media, or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer. Additionally, any connection can suitably be a computer-readable medium. For example, if software is transmitted using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave from a website, server, or other remote source, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of the medium. As used in this application, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically use magnetism to replicate data, while discs use lasers to replicate data. The above combinations should also be included within the scope of protection of computer-readable media.

[0285] In summary, the above description is only a preferred embodiment of the technical solution of the present application and is not intended to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A communication method, characterized in that, it includes: A terminal device receives reference signals sent by a network device through one or more reference signal resources; The terminal device determines one or more target reference signal resources and multiple reception parameters corresponding to the one or more target reference signal resources according to the measurement of the reference signals, and determines the antenna panels of the terminal device corresponding to the multiple reception parameters respectively, where the one or more target reference signal resources are part or all of the one or more reference signal resources, and the multiple reception parameters include a first reception parameter and a second reception parameter; The terminal device sends beam measurement information to the network device, and the beam measurement information is used to indicate the one or more target reference signal resources and the antenna panels of the terminal device corresponding to the one or more target reference signal resources respectively.

2. The method according to claim 1, characterized in that, The beam measurement information includes the indexes of the one or more target reference signal resources and the indexes of the antenna panels of the terminal device corresponding to the one or more target reference signal resources.

3. The method according to claim 2, characterized in that, The method further includes: The terminal device receives control information sent by the network device through the first reception parameter, and the control information is used to indicate the second reception parameter, and the second reception parameter is used for the terminal device to receive a signal to be transmitted; The terminal device determines the beam switching time required to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs; The terminal device receives the signal to be transmitted according to the beam switching time.

4. The method as claimed in claim 3, characterized in that, Before the terminal device receives the control information sent by the network device through the first reception parameter, the method further includes: The terminal device sends beam switching capability information to the network device, and the beam switching capability information is used to indicate the first switching time required for any two beam switches within the same antenna panel of the terminal device, and the second switching time required for any two beam switches on different antenna panels of the terminal device, or the beam switching capability information is used to indicate the first switching time required for any two beam switches within the same antenna panel of the terminal device, and the third switching time required for any two antenna panel switches of the terminal device.

5. The method according to claim 4, characterized in that, The terminal device determines the beam switching time required to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs, including: When the first reception parameter and the second reception parameter belong to the same antenna panel, the terminal device determines the beam switching time as the first switching time; or, When the first received parameter and the second received parameter belong to different antenna panels, the terminal device determines the beam switching time as the second switching time, or the terminal device determines the beam switching time as greater than or equal to the sum of the first switching time and the third switching time.

6. The method according to claim 5, wherein, the control information is further used to indicate the position of the signal to be transmitted in the time domain; wherein, the terminal device receives the signal to be transmitted according to the beam switching time, including one or more of the following: When the first received parameter and the second received parameter belong to the same antenna panel, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the first switching time, the terminal device receives the signal to be transmitted at the position of the signal to be transmitted in the time domain through the second received parameter; When the first received parameter and the second received parameter belong to the same antenna panel, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is less than the first switching time, the terminal device receives the signal to be transmitted at the position of the signal to be transmitted in the time domain through a preset received parameter; When the first received parameter and the second received parameter belong to different antenna panels, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the second switching time, or greater than or equal to the sum of the first switching time and the third switching time, the terminal device receives the signal to be transmitted at the position of the signal to be transmitted in the time domain through the second received parameter; When the first received parameter and the second received parameter belong to different antenna panels, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is less than the second switching time, or less than the sum of the first switching time and the third switching time, the terminal device receives the signal to be transmitted at the position of the signal to be transmitted in the time domain through a preset received parameter.

7. The method according to any one of claims 3 to 6, wherein, the control information is downlink control information DCI, and the signal to be transmitted is physical downlink shared channel PDSCH.

8. A communication method, wherein, comprising: The network device sends a reference signal through one or more reference signal resources; The network device receives beam measurement information sent by a terminal device. The beam measurement information is used to indicate one or more target reference signal resources and the antenna panels of the terminal device corresponding to the one or more target reference signal resources respectively. Among them, the one or more target reference signal resources are part or all of the one or more reference signal resources, and the one or more target reference signal resources correspond to multiple reception parameters, and the multiple reception parameters include a first reception parameter and a second reception parameter.

9. The method according to claim 8, wherein, the beam measurement information includes indexes of the one or more target reference signal resources and indexes of the antenna panels of the terminal device corresponding to the one or more target reference signal resources.

10. The method as claimed in claim 9, wherein, the method further comprises: the network device determines the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs according to the beam measurement information; the network device determines the beam switching time required for the terminal device to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs, wherein the first reception parameter is used for the terminal device to receive control information, and the second reception parameter is used for the terminal device to receive a signal to be transmitted; the network device determines the position of the signal to be transmitted in the time domain according to the beam switching time; the network device sends control information to the terminal device, and the control information is used to indicate the second reception parameter and the position of the signal to be transmitted in the time domain; the network device sends the signal to be transmitted to the terminal device according to the position of the signal to be transmitted in the time domain.

11. The method as claimed in claim 10, wherein, before the network device determines the beam switching time required for the terminal device to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs, the method further comprises: the network device receives beam switching capability information sent by the terminal device. The beam switching capability information is used to indicate a first switching time required for switching between any two beams within the same antenna panel of the terminal device, and a second switching time required for switching between any two beams on different antenna panels of the terminal device, or the beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the terminal device, and a third switching time required for switching between any two antenna panels of the terminal device.

12. The method as claimed in claim 11, wherein, the network device determines the beam switching time required for the terminal device to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs, including: When the first received parameter and the second received parameter belong to the same antenna panel, the network device determines that the beam switching time is the first switching time; or, When the first received parameter and the second received parameter belong to different antenna panels, the network device determines that the beam switching time is the second switching time, or the network device determines that the beam switching time is greater than or equal to the sum of the first switching time and the third switching time.

13. The method according to claim 12, wherein, The network device determines the position of the signal to be transmitted in the time domain, including: When the first received parameter and the second received parameter belong to the same antenna panel, the network device determines that the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the first switching time; and / or When the first received parameter and the second received parameter belong to different antenna panels, the network device determines that the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the second switching time, or greater than or equal to the sum of the first switching time and the third switching time.

14. The method according to any one of claims 10 to 13, wherein, The control information is downlink control information DCI, and the signal to be transmitted is physical downlink shared channel PDSCH.

15. A communication device, wherein, comprising: a receiving unit, configured to receive reference signals sent by a network device through one or more reference signal resources; a processing unit, configured to determine one or more target reference signal resources and a plurality of received parameters corresponding to the one or more target reference signal resources according to measurements of the reference signals, and determine the antenna panels of the communication device corresponding to the plurality of received parameters respectively, wherein the one or more target reference signal resources are part or all of the one or more reference signal resources, and the plurality of received parameters include a first received parameter and a second received parameter; a sending unit, configured to send beam measurement information to the network device, where the beam measurement information is used to indicate the one or more target reference signal resources and the antenna panels of the communication device corresponding to the one or more target reference signal resources respectively.

16. The device according to claim 15, wherein, The beam measurement information includes indexes of the one or more target reference signal resources and indexes of the antenna panels of the communication device corresponding to the one or more target reference signal resources.

17. The device according to claim 16, wherein, The receiving unit is further configured to receive control information sent by the network device through the first received parameter, where the control information is used to indicate the second received parameter, and the second received parameter is used for the communication device to receive a signal to be transmitted; The processing unit is further configured to determine a beam switching time required to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs; The receiving unit is further configured to receive the to-be-transmitted signal according to the beam switching time.

18. The apparatus according to claim 17, wherein, The transmitting unit is further configured to send beam switching capability information to the network device, where the beam switching capability information is used to indicate a first switching time required for switching between any two beams within the same antenna panel of the communication device, and a second switching time required for switching between any two beams on different antenna panels of the communication device, or the beam switching capability information is used to indicate a first switching time required for switching between any two beams within the same antenna panel of the communication device, and a third switching time required for switching between any two antenna panels of the communication device.

19. The apparatus according to claim 18, wherein, When the first reception parameter and the second reception parameter belong to the same antenna panel, the processing unit is further configured to determine the beam switching time as the first switching time; or, When the first reception parameter and the second reception parameter belong to different antenna panels, the processing unit is further configured to determine the beam switching time as the second switching time, or the processing unit is further configured to determine that the beam switching time is greater than or equal to the sum of the first switching time and the third switching time.

20. The apparatus according to claim 19, wherein, The control information is further used to indicate the position of the to-be-transmitted signal in the time domain; wherein, the receiving unit is configured to receive the to-be-transmitted signal according to the beam switching time, including one or more of the following: When the first reception parameter and the second reception parameter belong to the same antenna panel, if the time interval between the position of the to-be-transmitted signal in the time domain and the position of the control information in the time domain is greater than or equal to the first switching time, the receiving unit is configured to receive the to-be-transmitted signal at the position of the to-be-transmitted signal in the time domain through the second reception parameter; When the first reception parameter and the second reception parameter belong to the same antenna panel, if the time interval between the position of the to-be-transmitted signal in the time domain and the position of the control information in the time domain is less than the first switching time, the receiving unit is configured to receive the to-be-transmitted signal at the position of the to-be-transmitted signal in the time domain through a preset reception parameter; In the case where the first reception parameter and the second reception parameter belong to different antenna panels, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is greater than or equal to the second handover time, or greater than or equal to the sum of the first handover time and the third handover time, the receiving unit is configured to receive the signal to be transmitted at the position of the signal to be transmitted in the time domain through the second reception parameter; In the case where the first reception parameter and the second reception parameter belong to different antenna panels, if the time interval between the position of the signal to be transmitted in the time domain and the position of the control information in the time domain is less than the second handover time, or less than the sum of the first handover time and the third handover time, the receiving unit is configured to receive the signal to be transmitted at the position of the signal to be transmitted in the time domain through a preset reception parameter.

21. The apparatus according to any one of claims 17 to 20, characterized in that the control information is downlink control information DCI, and the signal to be transmitted is a physical downlink shared channel PDSCH.

22. A communication apparatus, characterized in that comprising: a transmitting unit, configured to transmit a reference signal through one or more reference signal resources; a receiving unit, configured to receive beam measurement information sent by a terminal device, where the beam measurement information is used to indicate one or more target reference signal resources and the antenna panels of the terminal device corresponding to the one or more target reference signal resources respectively, where the one or more target reference signal resources are part or all of the one or more reference signal resources, and the one or more target reference signal resources correspond to a plurality of reception parameters, and the plurality of reception parameters include a first reception parameter and a second reception parameter.

23. The apparatus according to claim 22, characterized in that the beam measurement information includes indexes of the one or more target reference signal resources and indexes of the antenna panels of the terminal device corresponding to the one or more target reference signal resources.

24. The apparatus according to claim 23, characterized in that the apparatus includes a processing unit, the processing unit is configured to determine the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs according to the beam measurement information; the processing unit is further configured to determine the beam handover time required for the terminal device to switch from the first reception parameter to the second reception parameter according to the antenna panel to which the first reception parameter belongs and the antenna panel to which the second reception parameter belongs, where the first reception parameter is used for the terminal device to receive control information, and the second reception parameter is used for the terminal device to receive a signal to be transmitted; the processing unit is further configured to determine the position of the signal to be transmitted in the time domain according to the beam handover time; the transmitting unit is further configured to send control information to the terminal device, where the control information is used to indicate the second reception parameter and the position of the signal to be transmitted in the time domain; The sending unit is further configured to send the to-be-transmitted signal to the terminal device according to the position of the to-be-transmitted signal in the time domain.

25. The apparatus according to claim 24, wherein, the receiving unit is further configured to receive beam switching capability information sent by the terminal device, where the beam switching capability information is used to indicate a first switching time required for switching between any two beams within the same antenna panel of the terminal device, and a second switching time required for switching between any two beams on different antenna panels of the terminal device, or the beam switching capability information is used to indicate the first switching time required for switching between any two beams within the same antenna panel of the terminal device, and a third switching time required for switching between any two antenna panels of the terminal device.

26. The apparatus according to claim 25, wherein, when the first receiving parameter and the second receiving parameter belong to the same antenna panel, the processing unit is further configured to determine that the beam switching time is the first switching time; or, when the first receiving parameter and the second receiving parameter belong to different antenna panels, the processing unit is further configured to determine that the beam switching time is the second switching time, or the processing unit is further configured to determine that the beam switching time is greater than or equal to the sum of the first switching time and the third switching time.

27. The apparatus according to claim 26, wherein, when the first receiving parameter and the second receiving parameter belong to the same antenna panel, the processing unit is further configured to determine that the time interval between the position of the to-be-transmitted signal in the time domain and the position of the control information in the time domain is greater than or equal to the first switching time; and / or when the first receiving parameter and the second receiving parameter belong to different antenna panels, the processing unit is further configured to determine that the time interval between the position of the to-be-transmitted signal in the time domain and the position of the control information in the time domain is greater than or equal to the second switching time, or greater than or equal to the sum of the first switching time and the third switching time.

28. The apparatus according to any one of claims 24 to 27, wherein, the control information is downlink control information DCI, and the to-be-transmitted signal is a physical downlink shared channel PDSCH.

29. A communication apparatus, wherein, the apparatus includes a processor, and the processor is configured to execute a computer program or instruction, so that the apparatus executes the method according to any one of claims 1 to 14.

30. The apparatus according to claim 29, wherein, the apparatus further includes a memory and / or a communication interface, the memory is coupled to the processor and is configured to store the computer program or instruction; the communication interface is coupled to the processor and is configured to input and / or output information.

31. A computer-readable storage medium, wherein, The computer-readable storage medium stores a computer program, which, when running on a communication device, causes the communication device to execute the method according to any one of claims 1 to 14.

32. A computer program product, characterized in that the computer program product includes a computer program or instructions for executing the method according to any one of claims 1 to 14.

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