Transmission methods, devices, communication equipment and storage media

Abstract

This application discloses a transmission method, apparatus, communication device, and storage medium, belonging to the field of communication technology. The transmission method of this application includes: when it is determined that a switch from a first BWP to a second BWP is needed, the target communication device determines target beam information for transmitting a target signal on the second BWP based on the time information of the first beam information and the time information of the switch to the second BWP; the target communication device transmits the target signal based on the target beam information; wherein, the target communication device is a network-side device or a terminal, and the first beam information is sent by the network-side device to the terminal.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a transmission method, apparatus, communication equipment, and storage medium. Background Technology

[0002] In a communication system, the network configures multiple bandwidth parts (BWPs) on a cell. When a terminal does not receive data for a long time or detects the Physical Downlink Control Channel (PDCCH), the terminal will use a timer to switch from the currently active BWP to the default downlink BWP or the default downlink / uplink BWP pair, thereby achieving the effect of saving power.

[0003] When the network activates or indicates new beam information for a channel or RS, such as TCI state, quasi-co-location information (QCL information), spatial relation information, etc., if a BWP handover needs to be performed before the beam application time according to network instructions or timer expiration, then after the BWP handover is completed, the existing technology cannot determine the beam information of that channel or RS on the new BWP, which may lead to inconsistency between the beam information of the network and the UE, and interruption of information transmission. Summary of the Invention

[0004] This application provides a transmission method, apparatus, communication device, and storage medium that can solve the problem of inconsistent beam information between the network and the UE after BWP handover.

[0005] Firstly, a transmission method is provided, the method comprising:

[0006] When it is determined that a switch from the first BWP to the second BWP is required, the target communication device determines the target beam information for transmitting the target signal on the second BWP based on the time information of the first beam information and the time information of the switch to the second BWP.

[0007] The target communication device transmits the target signal based on the target beam information;

[0008] The target communication device is a network-side device or a terminal, and the first beam information is sent from the network-side device to the terminal.

[0009] Secondly, a transmission device is provided, the device comprising:

[0010] The first determining module is used to determine the target beam information for transmitting the target signal on the second BWP based on the time information of the first beam information and the time information of switching to the second BWP when it is determined that a switch from the first BWP to the second BWP is required.

[0011] The transmission module is used to transmit the target signal based on the target beam information;

[0012] The target communication device is a network-side device or a terminal, and the first beam information is sent from the network-side device to the terminal.

[0013] Thirdly, a communication device is provided, the communication device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0014] Fourthly, a target communication device is provided, including a processor and a communication interface, wherein the processor is used for:

[0015] When it is determined that a switch from the first BWP to the second BWP is required, the target beam information for transmitting the target signal on the second BWP is determined based on the time information of the first beam information and the time information of the switch to the second BWP.

[0016] The communication interface is used for:

[0017] The target signal is transmitted based on the target beam information;

[0018] The target communication device is a network-side device or a terminal, and the first beam information is sent from the network-side device to the terminal.

[0019] Fifthly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0020] In a sixth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being used to run programs or instructions to implement the steps of the method described in the first aspect.

[0021] In a seventh aspect, a computer program / program product is provided, the computer program / program product being stored in a non-transient storage medium, the program / program product being executed by at least one processor to perform the steps of the method as described in the first aspect.

[0022] In this embodiment, the target beam information used for transmitting the target signal on the second BWP after switching from the first BWP is determined by using the time information of the first beam information and the time information of switching to the second BWP. This ensures that the target beam information determined by the network and the terminal is consistent, ensures beam alignment during BWP switching, and reduces interruption of information transmission. Attached Figure Description

[0023] Figure 1 This is a structural diagram of a wireless communication system applicable to the embodiments of this application;

[0024] Figure 2 This is a schematic flowchart of the transmission method provided in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the BWP handover delay provided in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the transmission device provided in the embodiments of this application;

[0027] Figure 5 This is a schematic diagram of the structure of the communication device provided in the embodiments of this application;

[0028] Figure 6 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application;

[0029] Figure 7 A schematic diagram of the hardware structure of a network-side device to implement an embodiment of this application. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0033] Figure 1This is a structural diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device, user terminal, or user equipment (UE). Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, game consoles, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0034] First, let's introduce the following content:

[0035] (1) Regarding beam measurement and beam reporting;

[0036] Analog beamforming is transmitted across the full bandwidth, and each polarization element on each panel of each high-frequency antenna array can only transmit an analog beam in a time-division multiplexed manner. The beamforming weights of the analog beam are achieved by adjusting the parameters of devices such as the RF front-end phase shifter.

[0037] The simulated beamforming vector can be trained using a polling method. Each element on each antenna panel, in each polarization direction, sequentially transmits training signals (i.e., candidate beamforming vectors) at predetermined times using time-division multiplexing. The terminal then measures the signals and sends back a beam report, which the network uses to implement simulated beam transmission in the next transmission. The beam report typically includes the identifiers of several optimal transmit beams and the measured received power of each transmit beam.

[0038] When performing beam measurements, the network can configure a reference signal resource set (RS resource set), which includes at least one reference signal resource, such as a synchronization signal and PBCH block resource (SSB resource) or a channel state information reference signal resource (CSI-RS resource). The UE measures the Layer 1 Reference Signal Received Power (L1-RSRP) / Signal to Interference plus Noise Ratio (L1-SINR) of each RS resource and can report at least one optimal measurement result to the network. The reported content includes an SSB resource indicator (SS / PBCH Block Resource Indicator, SSBRI) or a Channel State Information Reference Signal Resource Indicator (CRI), and the corresponding L1-RSRP / L1-SINR. This report can reflect at least one optimal beam and its quality, allowing the network to determine the beam information used to transmit channels or signals with the UE.

[0039] (2) Regarding the beam indication mechanism

[0040] After beam measurement and beam reporting, the network can perform beam indication on the downlink and uplink channels or reference signals to establish beam links between the network and the UE, and realize the transmission of channels or reference signals.

[0041] For beam indication of the physical downlink control channel (PDCCH), the network uses RRC signaling to configure K TCI (Transmission Configuration Indication) states for each CORESET. When K > 1, one TCI state is indicated or activated by the Media Access Control (MAC) CE. When K = 1, no additional MAC CE command is required. When the UE is listening to the PDCCH, it can use the same QCL (Quasi-colocation) information for the entire search space within the CORESET, i.e., use the same TCI state to listen to the PDCCH. The reference signal in this TCI state (e.g., periodic CSI-RS resource, semi-persistent CSI-RS resource, SS block, etc.) has a spatial QCL with the UE-specific PDCCH DMRS port. The UE can determine which receive beam to use to receive the PDCCH based on this TCI state.

[0042] For beam indication of the Physical Downlink Shared Channel (PDSCH), the network can configure M TCI states via Radio Resource Control (RRC) signaling, and then activate them using the MAC CE command. N The UE generates a TCI state and then notifies the UE of the TCI state via the N-bit TCI field of the DCI. The reference signal in this TCI state is QCL with the Dedicated Demodulation Reference Signal (DMRS) port of the PDSCH to be scheduled. The UE can determine which receive beam to use to receive the PDSCH based on this TCI state.

[0043] For CSI-RS beam indication, when the CSI-RS type is periodic CSI-RS, the network can configure QCL information for the CSI-RS resource via RRC signaling. When the CSI-RS type is semi-persistent CSI-RS, the network can use the MAC CE command to indicate the QCL information when activating a CSI-RS resource from the RRC-configured CSI-RS resource set. When the CSI-RS type is aperiodic CSI-RS, the network can configure QCL information for the CSI-RS resource via RRC signaling and use DCI to trigger the CSI-RS.

[0044] For PUCCH beam indication, the network can use RRC signaling to configure spatial relation information for each PUCCH resource via the parameter PUCCH-SpatialRelationInfo. When multiple spatial relation information items are configured for a PUCCH resource, MAC-CE is used to indicate or activate one of the spatial relation information items. When only one spatial relation information item is configured for a PUCCH resource, no additional MAC-CE command is required.

[0045] For PUSCH beam indication, the spatial relation information of PUSCH is that when the DCI carried by PDCCH schedules PUSCH, each SRI codepoint in the SRI field of the DCI can indicate an SRI, which can be used to indicate the spatial relation information of PUSCH.

[0046] For SRS beam indication, when the SRS type is periodic SRS, the network can configure spatial relation information for the SRS resource via RRC signaling. When the SRS type is semi-persistent SRS, the network can activate one from a set of spatial relation information configured by RRC via the MAC CE command. When the SRS type is aperiodic SRS, the network can configure spatial relation information for the SRS resource via RRC signaling, and can also update the spatial relation information of the aperiodic SRS resource using the MAC CE command.

[0047] (3) Regarding beam application time (BAT) during beam switching;

[0048] In a communication system, when the network uses MAC CE to activate the TCI state, the activated beam information takes effect after the TCI state switching delay (the TCI state is used to indicate beam information). During this delay, two cases are distinguished: known TCI state and unknown TCI state.

[0049] If the target TCI state is known and the UE receives a MAC CE in slot n, then the TCI state handover delay (if the beam information is indicated by a MAC CE, then the handover delay includes the time from the MAC CE to the MAC CE command taking effect) is:

[0050] If the target TCI state is unknown, and the UE receives a MAC CE in slot n, then the TCI state handover delay is:

[0051] Among them, T HARQ T is the duration between downlink data transmission and ACK. first-SSB T is the transmission time of the first SSB after the UE decodes the MAC CE. SSB-proc= 2ms. If the TCI state is not in the list of active TCI states, additional processing time is required. For the case of an unknown TCI state, the additional processing time is the time required for L1-RSRP measurement and reporting.

[0052] In the communication system, the network can also configure the threshold parameter timeDurationForQCL based on the UE capability. When the DCI schedules the PDSCH in slot n, if the offset between the DCI and the PDSCH is less than the threshold value, the PDSCH can be transmitted using the default beam. If the offset between the DCI and the PDSCH is greater than or equal to the threshold value, the beam information of the PDSCH can be determined using the TCI state indicated by the DCI.

[0053] In communication systems, a common beam is also introduced, which means that the beam indicated by the DCI can be used for multiple channels or RS transmission. The effective time of the common beam (i.e., the beam application time) is: the first slot after at least X ms or Y symbols following the last symbol of the DCI acknowledgment character (ACK) is the BAT.

[0054] (4) Regarding the bandwidth section BWP switching;

[0055] In a communication system, a network can also configure multiple BWPs on a single cell. Each bandwidth portion corresponds to a numberology, bandwidth, and frequency location. For FDD systems or paired spectrum, the base station configures up to four downlink BWPs and up to four uplink BWPs for the UE. For TDD systems or unpaired spectrum, the base station configures up to four DL / UL BWP pairs for the UE. The center carrier frequencies of the DL BWP and UL BWP in each DL / UL BWP pair are the same. In addition, each UE will have a default DL BWP or a default DL / UL BWP pair. The default DL BWP or default DL / UL BWP pair is usually a relatively small bandwidth BWP. When the UE does not receive data for a long time or detects a PDCCH, the UE will switch from the current active BWP to the default DL BWP or default DL / UL BWP pair through a timer, thereby achieving a power saving effect.

[0056] Active BWP handover is implemented via RRC, DCI, or a timer. For DCI-based BWP handover, the UE receives the BWP handover command in slot n, and the handover occurs during the BWP handover delay T. BWPswitchDelay Only then can the UE receive PDSCH (during downlink BWP handover) or send PUSCH (during uplink BWP handover) on the new BWP. For timer-based BWP handover, if the timer expires in slot n, the handover delay T will be... BWPswitchDelay Only then can the UE receive PDSCH (during downlink BWP handover) or send PUSCH (during uplink BWP handover) on the new BWP. In T starting from slot n... BWPswitchDelay The UE does not receive or transmit signals within this period.

[0057] The transmission method and apparatus provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0058] Figure 2 This is a flowchart illustrating the transmission method provided in an embodiment of this application, as shown below. Figure 2 As shown, the method includes the following steps:

[0059] Step 200: When it is determined that a switch from the first BWP to the second BWP is required, the target communication device determines the target beam information for transmitting the target signal on the second BWP based on the time information of the first beam information and the time information of the switch to the second BWP.

[0060] Step 210: The target communication device transmits the target signal based on the target beam information;

[0061] The target communication device is a network-side device or a terminal, and the first beam information is sent from the network-side device to the terminal.

[0062] Optionally, the target communication device can be a terminal;

[0063] Optionally, the target communication device can be a network-side device;

[0064] Optionally, Figure 3 This is a schematic diagram of the BWP handover delay provided in an embodiment of this application, as shown below. Figure 3 The example shown illustrates a scenario where a BWP handover needs to be performed before the beam application time when the network activates or indicates a new TCI state for a certain channel or RS. This is not intended to limit the various embodiments of this application.

[0065] Optionally, when the terminal determines that it needs to switch from the first BWP to the second BWP, it can determine that a BWP handover needs to be performed based on the BWP handover command indicated by the DCI of the network-side device, or based on the timeout of the BWP handover timer. Furthermore, the BWP handover is completed after the agreed-upon BWP handover delay.

[0066] For example, the first BWP can be an active BWP, and the second BWP can be an inactive BWP.

[0067] Optionally, the network-side device can use DCI indication to switch to the second BWP in slot n. Then, the terminal can switch from the first BWP to the second BWP within the BWP handover delay after slot n. The second BWP becomes the active BWP, while the first BWP becomes the inactive BWP.

[0068] Optionally, the network-side device can directly determine whether a switch from the first BWP to the second BWP is needed;

[0069] Optionally, the first BWP and the second BWP can be in the same cell or in different cells.

[0070] Optionally, the target signal may be a channel and / or reference signal that needs to be transmitted after switching to the second BWP.

[0071] Optionally, the terminal and / or network-side device may, upon determining that a switch from the first BWP to the second BWP is required, determine the target beam information for transmitting the target signal on the second BWP based on the time information of the first beam information and the time information of the switch to the second BWP, that is, determine the target beam information for transmitting the target signal after the switch is completed.

[0072] Optionally, after determining the target beam information for transmitting the target signal, the terminal and / or network-side device can transmit the target signal on the second BWP based on the target beam information.

[0073] Optionally, the beam information mentioned in the embodiments of this application may also be referred to as: beam identification information, spatial relation information, spatial domain transmission filter information, spatial domain reception filter information, spatial filter information, transmission configuration indication state (TCI state) information, quasi-co-location (QCL) information, or QCL parameters, etc. Downlink beam information is typically represented using TCI state information or QCL information. Uplink beam information is typically represented using TCI state information or spatial relation information.

[0074] In this embodiment, the target beam information used for transmitting the target signal on the second BWP after switching from the first BWP is determined by using the time information of the first beam information and the time information of switching to the second BWP. This ensures that the target beam information determined by the network and the terminal is consistent, ensures beam alignment during BWP switching, and reduces interruption of information transmission.

[0075] Optionally, the target communication device determines the target beam information for transmitting the target signal based on the time information of the first beam information and the time information of switching to the second BWP, including:

[0076] The target beam information for transmitting the target signal is determined based on at least one of the target signal, the time information of the first beam information, and the time information of switching to the second BWP.

[0077] Optionally, the method for determining the target beam information used to transmit the target signal may differ depending on the target signal.

[0078] Therefore, the target beam information for transmitting the target signal can be determined based on at least one of the target signal, the time information of the first beam information, and the time information of switching to the second BWP.

[0079] Optionally, when the target signal is PDCCH or PUCCH, or when the first beam information is common beam information, the time information of the first beam information includes the beam application time of the first beam information; the first beam information is indicated by the network side through a first command.

[0080] Specifically, when the target signal is PDCCH or PUCCH, the target beam information for transmitting the target signal can be determined based on at least one of the time information of the first beam information indicated by the first command and the time information of the switch to the second BWP.

[0081] Optionally, if the first beam information is common beam information, the target beam information for transmitting the target signal can be determined based on at least one of the time information of the first beam information indicated by the first command and the time information of switching to the second BWP.

[0082] Optionally, the common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal.

[0083] Optionally, the first command can be any one of RRC signaling, MAC CE command, or DCI signaling.

[0084] Optionally, when the first command is a DCI, the DCI that indicates the BWP switch can be the same DCI or a different DCI.

[0085] Optionally, the first command can be sent on the first BWP or on the second BWP.

[0086] Optionally, the target channel can be at least one downlink channel and uplink channel, and the target RS can be at least one downlink RS and uplink RS.

[0087] Optionally, the first beam information can be common beam information.

[0088] The common beam information can be at least one of the following: joint TCI state, separate DL TCI state, and separate UL TCI state.

[0089] Optionally, the first beam information consists of K beams, where K is a positive integer.

[0090] For example, the first command can be MAC CE, which activates one or more TCI states (such as activating one or more beams for a control channel), or the first command can be DCI, which indicates one or more TCI states (such as indicating one or more beams for a data channel).

[0091] Optionally, the beam application time of the first beam, also known as BAT or beam activation time, can be before or after the BWP handover is completed.

[0092] Optionally, determining the target beam information for transmitting the target signal based on at least one of the target signal, the timing information of the first beam information, and the timing information of switching to the second BWP includes at least one of the following:

[0093] If the timing information for switching to the second BWP is after the beam application time, the target beam information is determined to be the first beam information;

[0094] If the time information for switching to the second BWP is prior to the beam application time, it is determined that the target beam information is the first preset beam information prior to the beam application time.

[0095] If the timing information for switching to the second BWP is prior to the beam application time, then if the timing information is after the beam application time, the target beam information is determined to be the first beam information.

[0096] Specifically, beam application time T2 can refer to the time from which the first beam information indicated or activated by the network takes effect;

[0097] Optionally, after the beam application time, the first beam information can be used to transmit the target signal.

[0098] Optionally, in the embodiments of this application, when the target signal is PDCCH or PUCCH, or when the first beam information indicated by the network-side device is common beam information, when the target communication device is a terminal, the terminal can obtain the first beam information based solely on the first command; when the target communication device is a network-side device, the network-side device can directly determine the first beam information and indicate it to the terminal.

[0099] Optionally, the target beam information used on the second BWP can be determined as the first beam information after the beam application time T2.

[0100] Optionally, the target beam information used on the second BWP can be determined as the first preset beam information before the beam application time T2.

[0101] The first preset beam information can be the beam information of a certain PDCCH on the preset BWP, or the beam information of the most recently used PDCCH on the preset BWP, or the beam information of the most recently used PDCCH on the preset BWP.

[0102] Optionally, the preset BWP can be a first BWP and / or a second BWP.

[0103] Optionally, the preset BWP can be determined based on whether beam information of a preset channel exists on the second BWP; or, the preset BWP can be determined based on whether beam information of a preset channel exists on the second BWP within a preset time period. For example, if the network-side device has not activated the PDCCH beam information for the terminal on the second BWP, or if the network-side device has not activated the PDCCH beam information on the second BWP for the terminal within a specific time period before switching to the second BWP, the first BWP is determined as the preset BWP; conversely, if the network-side device has activated the PDCCH beam information for the terminal on the second BWP, or if the network-side device has activated the PDCCH beam information on the second BWP for the terminal within a specific time period before switching to the second BWP, the second BWP is determined as the preset BWP.

[0104] Optionally, if the time information T1 for switching to the second BWP is after the beam application time T2, the target beam information after T1 can be determined to be the first beam information;

[0105] Optionally, if the time information T1 for switching to the second BWP is before the beam application time, it can be determined that the target beam information is the first preset beam information before the beam application time T2, i.e. between T1 and T2.

[0106] Optionally, if the timing information for switching to the second BWP is before the beam application time, it can be determined that the target beam information is the first beam information after the beam application time, i.e. after T2.

[0107] Taking the target signal as PDCCH as an example, if the beam application time is after the BWP handover is completed, it includes at least one of the following:

[0108] On the second BWP, within the time period prior to the beam application time, the beam information of the PDCCH is the preset beam information (first preset beam information) on the preset BWP. If the preset BWP is the first BWP and / or the second BWP, depending on whether the network-side device has activated the beam information of the PDCCH for the terminal on the second BWP, the preset beam information is the beam information of a certain PDCCH on the preset BWP, or the beam information of the most recently used PDCCH on the preset BWP, or the beam information of the most recently used beam information on the preset BWP.

[0109] On the second BWP, after the beam application time, the second beam information of the PDCCH is the first beam information.

[0110] Optionally, if the target signal is a PDCCH or PUCCH, or if the first beam information indicated by the network-side device is common beam information, the target beam information can also be determined based on the transmission time of the first command; wherein, if the network-side device sends the first command after the BWP handover is completed, the target beam information can be determined by at least one of the following:

[0111] If the time information T1 for switching to the second BWP is before the transmission time T3 of the first command, it is determined that the target beam information on the second BWP is the second preset beam information before the transmission time T3 of the first command, that is, between T1 and T3.

[0112] If the time information T1 for switching to the second BWP is before the transmission time T3 of the first command, it is determined that the target beam information on the second BWP is the third preset beam information if it is after the transmission time T3 of the first command and before the beam application time T2, that is, between T3 and T2, where T3 is earlier than T2.

[0113] If the time information T1 for switching to the second BWP is before the transmission time T3 of the first command, it is determined that the target beam information on the second BWP is the first beam information after the beam application time T2, wherein T3 is earlier than T2.

[0114] Optionally, when the target signal is a PDSCH, or when the first beam information is common beam information, the timing information of the first beam information includes at least one of the following:

[0115] The first activation time of M beam information, wherein the M beam information is the beam information activated by the network-side device through the second command and corresponding to the second BWP, and the first activation time is the effective time when the M beam information is activated, where M is a positive integer;

[0116] The time information corresponding to the third command is the beam application time of the first beam information indicated by the third command.

[0117] Specifically, the target signal is PDSCH, or the first beam information is common beam information;

[0118] Optionally, the second command can be any one of RRC signaling, MAC CE command, and DCI signaling.

[0119] Optionally, the second command can be sent on the first BWP or on the second BWP.

[0120] Optionally, the target channel can be at least one downlink channel and uplink channel, and the target RS can be at least one downlink RS and uplink RS.

[0121] Optionally, the first beam information can be common beam information.

[0122] The common beam information can be at least one of the following: joint TCI state, separate DL TCI state, and separate UL TCI state.

[0123] Optionally, the first beam information consists of K beams, where K is a positive integer.

[0124] For example, the second command can be MAC CE, which is used to activate M beam information on the second BWP, such as activating M TCI states, where M is a positive integer;

[0125] Optionally, the third command can be DCI, indicating one or more TCI states.

[0126] Optionally, the third command can be a DCI, which can be the same DCI as or a different DCI from the one that indicates the BWP switch.

[0127] Optionally, determining the target beam information for transmitting the target signal based on at least one of the target signal, the timing information of the first beam information, and the timing information of switching to the second BWP includes at least one of the following:

[0128] If the transmission time of the target signal is before the time information corresponding to the third command, the target beam information is determined to be the fourth preset beam information;

[0129] If the transmission time of the target signal is after the time information corresponding to the third command and after the first activation time, then the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0130] The target signal transmission time is after the time information corresponding to the third command and before the first activation time, and the target beam information is the fifth preset beam information.

[0131] Specifically, the target signal is PDSCH, or the first beam information is common beam information;

[0132] Optionally, the transmission time of the target signal can be Tk, the time information for switching to the second BWP can be T4, the first activation time can be T5, and the time information corresponding to the third command can be T6. The corresponding situation can be determined by comparing the magnitudes of these four values. The larger the value, the later the corresponding time, and the smaller the value, the earlier the corresponding time. For example, T4 > T5 can indicate that the time information T4 for switching to the second BWP is after the first activation time T5.

[0133] Optionally, if the transmission time Tk of the target signal is before the time information T6 corresponding to the third command, the target beam information is determined to be the fourth preset beam information;

[0134] Optionally, if Tk is before any time T5 or T6, regardless of other time relationships, the target beam information used to transmit the target signal on the second BWP can be determined as the fourth preset beam information.

[0135] Optionally, when Tk < T6, regardless of the relationship between T4 and T5, and regardless of the relationship between T5 and T6, or between T5 and Tk, the target beam information used to transmit the target signal on the second BWP can be determined as the fourth preset beam information.

[0136] Optionally, when the time interval between the transmission time of the third command and the transmission time of the target signal is less than a first threshold, the target beam information is determined to be the fourth preset beam information;

[0137] Optionally, if the time information T4 for switching to the second BWP is after the first activation time T5, and the transmission time Tk of the target signal is before the time information T6 corresponding to the third command, and the transmission time Tk of the target signal is after the time information T4 for switching to the second BWP, i.e., T5 < T4 < Tk < T6, it can be determined that after T4, the target beam information used for transmitting the target signal on the second BWP is the fourth preset beam information.

[0138] Optionally, if the time information T4 for switching to the second BWP is after the first activation time T5, and the interval between the transmission time of the third command and the transmission time Tk of the target signal is less than the first threshold, i.e. T5 < T4 < Tk < T6, it can be determined that after T4, the target beam information used to transmit the target signal on the second BWP is the fourth preset beam information.

[0139] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, and the transmission time Tk of the target signal is before the time information T6 corresponding to the third command, and the transmission time Tk of the target signal is after the first activation time T5, that is, if T4 < T5 < Tk < T6, it can be determined that after T4, the target beam information used to transmit the target signal on the second BWP is the fourth preset beam information.

[0140] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, and the interval between the transmission time of the third command and the transmission time of the target signal is less than the first threshold, then in the case of T4 < T5 < Tk < T6, it can be determined that after T4, the target beam information used to transmit the target signal on the second BWP is the fourth preset beam information.

[0141] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, and the transmission time Tk of the target signal is before the time information T6 corresponding to the third command, the transmission time Tk of the target signal is before the first activation time T5, and the transmission time Tk of the target signal is after the time information T4 for switching to the second BWP, that is, if T4 < Tk < T6 < T5 or T4 < Tk < T5 < T6, it can be determined that after T4, the target beam information used for transmitting the target signal on the second BWP is the fourth preset beam information;

[0142] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, the transmission time Tk of the target signal is before the first activation time T5, and the interval between the transmission time of the third command and the transmission time of the target signal is less than the first threshold, i.e., T4 < Tk < T6 < T5 or T4 < Tk < T5 < T6, then the target beam information can be determined to be the fourth preset beam information.

[0143] Optionally, the fourth beam information can be the default beam information determined by the protocol; for example, it can be the beam information corresponding to the smallest ID of the CORESET in the most recent time slot that the UE listens to on the BWP. This beam information is only an example of the fourth beam information and is not intended to limit it.

[0144] Optionally, when Tk is greater than T5 and Tk is greater than T6, regardless of the relationship between T5 and T6, the target beam information used to transmit the target signal on the second BWP can be determined as the first beam information; the first beam information is at least one of the M beam information activated by the network-side device through the second command and effective at the first activation time T5.

[0145] Optionally, if the transmission time Tk of the target signal is after the time information T6 corresponding to the third command, and the transmission time Tk of the target signal is after the first activation time T5, that is, if T6 < T5 < Tk or T5 < T6 ≤ Tk, then the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information activated by the network-side device through the second command and effective at the first activation time T5;

[0146] Optionally, if the interval between the transmission time of the third command and the transmission time Tk of the target signal is greater than or equal to a first threshold, and the transmission time Tk of the target signal is after the first activation time T5, i.e., T6 < T5 < Tk or T5 < T6 ≤ Tk, then the target beam information is determined to be the first beam information; the first beam information is at least one of M beam information activated by the network-side device through the second command and effective at the first activation time T5;

[0147] Optionally, if the switching time T4 to the second BWP is after the first activation time T5, and the switching time T4 to the second BWP is before the time T6 corresponding to the third command, and the transmission time Tk of the target signal is after the time T6 corresponding to the third command, that is, if T5 < T4 < T6 ≤ Tk, the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0148] Optionally, if the time information T4 for switching to the second BWP is after the first activation time T5, and the time information T4 for switching to the second BWP is before the time information T6 corresponding to the third command, and the interval between the transmission time of the third command and the transmission time of the target signal is greater than or equal to a first threshold, i.e., T5 < T4 < T6 ≤ Tk, then the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0149] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, and the first activation time T5 is before the time information T6 corresponding to the third command, and the transmission time Tk of the target signal is after the time information T6 corresponding to the third command, that is, if T4 < T5 < T6 ≤ Tk, then after the first activation time T5, the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0150] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, and the first activation time T5 is before the time information T6 corresponding to the third command, and the interval between the transmission time of the third command and the transmission time of the target signal is greater than or equal to a first threshold (i.e., T4 < T5 < T6 ≤ Tk), then after the first activation time T5, the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0151] Optionally, if the switching time information T4 to the second BWP is before the first activation time T5, and the first activation time T5 is after the time information T6 corresponding to the third command, and the transmission time Tk of the target signal is after both the time information T6 corresponding to the third command and the first activation time T5, i.e., when T4 < T6 < T5 < Tk or T6 < T4 < T5 < Tk, then after the first activation time T5, the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0152] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, and the first activation time T5 is after the time information T6 corresponding to the third command, the transmission time Tk of the target signal is after the first activation time T5, and the interval between the transmission time of the third command and the transmission time Tk of the target signal is greater than or equal to a first threshold, i.e., T4 < T6 < T5 < Tk or T6 < T4 < T5 < Tk, then it is determined that after the first activation time T5, the target beam information is the first beam information; the first beam information is at least one of the M beam information.

[0153] Optionally, if the switching time information T4 to the second BWP is after the first activation time T5, and the first activation time T5 is after the time information T6 corresponding to the third command, and the transmission time Tk of the target signal is after the time information T6 corresponding to the third command, that is, if T6 < T5 < T4 < Tk, then after the first activation time T5, the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0154] Optionally, if the time information T4 for switching to the second BWP is after the first activation time T5, and the first activation time T5 is after the time information T6 corresponding to the third command, and the interval between the transmission time of the third command and the transmission time of the target signal is greater than or equal to a first threshold (i.e., T6 < T5 < T4 < Tk), then the target beam information is determined to be the first beam information after the first activation time T5; the first beam information is at least one of the M beam information.

[0155] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, and the first activation time T5 is before the time information T6 corresponding to the third command, and the transmission time Tk of the target signal is after the time information T6 corresponding to the third command, that is, if T5 < T6 < T4 < Tk, then after the first activation time T5, the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0156] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, and the first activation time T5 is before the time information T6 corresponding to the third command, and the interval between the transmission time of the third command and the transmission time of the target signal is greater than or equal to a first threshold (i.e., T5 < T6 < T4 < Tk), then after the first activation time T5, the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0157] Optionally, if the transmission time Tk of the target signal is after the time information T6 corresponding to the third command and before the first activation time T5, i.e., T6≤Tk<T5, the target beam information is the fifth preset beam information.

[0158] Optionally, if the interval between the transmission time of the third command and the transmission time of the target signal is greater than or equal to a first threshold, and the transmission time Tk of the target signal is before the first activation time T5, i.e., T6≤Tk<T5, then the target beam information is the fifth preset beam information.

[0159] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, and the first activation time T5 is after the time information T6 corresponding to the third command, and the transmission time Tk of the target signal is before the first activation time T5, and the transmission time Tk of the target signal is after the time information T6 corresponding to the third command, i.e., T4 < T6 ≤ Tk < T5, then it is determined that before the first activation time T5, the target beam information is the fifth preset beam information.

[0160] Optionally, if the time information T4 for switching to the second BWP is before the first activation time T5, and the first activation time T5 is after the time information T6 corresponding to the third command, and the transmission time Tk of the target signal is before the first activation time T5, and the interval between the transmission time of the third command and the transmission time of the target signal is greater than or equal to a first threshold, i.e., T4 < T6 ≤ Tk < T5, then it is determined that before the first activation time T5, the target beam information is the fifth preset beam information.

[0161] Optionally, if the target signal is a PDSCH, or if the first beam information is common beam information, the target beam information can also be determined based on the first activation time and the transmission time of the third command; wherein the target beam information can be determined by at least one of the following:

[0162] If the time information for switching to the second BWP is before the transmission time of the second command, and the interval between the transmission time of the third command and the transmission time of the target signal is less than the first threshold, it is determined that the target beam information on the second BWP is the sixth preset beam information before the first activation time T5.

[0163] If the time information for switching to the second BWP is before the transmission time of the second command and the transmission time Tk of the target signal is before the transmission time T7 of the third command, it is determined that before the first activation time T5, the target beam information on the second BWP is the sixth preset beam information.

[0164] If the time information for switching to the second BWP is before the transmission time of the second command, and the interval between the transmission time of the third command and the transmission time of the target signal is greater than or equal to the first threshold, it is determined that before the first activation time T5, the target beam information on the second BWP is the seventh preset beam information.

[0165] If the time information for switching to the second BWP is before the transmission time of the second command and the transmission time Tk of the target signal is after the time information corresponding to the third command, it is determined that before the first activation time T5, the target beam information on the second BWP is the seventh preset beam information.

[0166] If the time information T4 for switching to the second BWP is before the transmission time T7 of the third command, and the transmission time T7 of the third command is before the first activation time T5, i.e., T4 < T7 < T5, then on the second BWP, it can be determined that before the first activation time T5, the target beam information on the second BWP is the eighth preset beam information. The eighth preset beam information can be at least one of any preset beam information or preset activation beam information.

[0167] When switching to the second BWP, the time information T4 is before the first activation time T5. The first activation time T5 is before the transmission time T7 of the third command. T4 < T5 < T7. It can be determined that between T4 and T5, the target beam information on the second BWP is the ninth preset beam information. It can be determined that between T5 and T7, the target beam information on the second BWP is the tenth preset beam information. The tenth preset beam information can be any preset beam information or at least one of the M beam information activated at T5.

[0168] Optionally, the preset beam information includes at least one of the following:

[0169] Preset beam information on the BWP;

[0170] Beam information in the preset time slot;

[0171] Beam information for the preset channel;

[0172] Information on the most recently used beam;

[0173] At least one of N active beam information, where N is a positive integer;

[0174] At least one of the P most recently activated beam information, where P is a positive integer;

[0175] The most recently used public beam information.

[0176] Optionally, any one or more of the following preset beam information: first preset beam information, second preset beam information, third preset beam information, fourth preset beam information, fifth preset beam information, sixth preset beam information, seventh preset beam information, eighth preset beam information, ninth preset beam information, and tenth preset beam information may include at least one of the following:

[0177] Preset beam information on the BWP;

[0178] Beam information in the preset time slot;

[0179] Beam information for the preset channel;

[0180] Information on the most recently used beam;

[0181] At least one of N active beam information, where N is a positive integer;

[0182] At least one of the P most recently activated beam information, where P is a positive integer;

[0183] The most recently used public beam information.

[0184] Specifically, any one or more of the following preset beam information may include at least one of the following: first preset beam information, second preset beam information, third preset beam information, fourth preset beam information, fifth preset beam information, sixth preset beam information, seventh preset beam information, eighth preset beam information, ninth preset beam information, and tenth preset beam information.

[0185] The beam information of the preset channel on the preset BWP, such as the beam information used by the specific PDCCH or the most recently transmitted PDCCH or the most recently transmitted channel or RS on the first BWP or the second BWP.

[0186] The preset BWP listens for the beam information of the CORESET with the smallest ID within the time slot of the CORESET;

[0187] The BWP is set to monitor the beam information of the CORESET with the smallest ID within one or more time slots of the CORESET.

[0188] The beam information corresponding to the smallest code point in at least one beam information activated by PDSCH in the preset BWP; for example, if the network activates 8 TCI states for PDSCH, corresponding to code points from 0 to 7 respectively, then the TCI state corresponding to code point 0 is used as the preset beam information.

[0189] At least one beam information in the preset active beam information in the preset BWP, wherein the preset active beam information may be at least one beam information activated by the network-side device on the preset BWP, and these preset active beam information may be used for a specific channel (such as PDCCH or PDSCH) or for multiple channels (such as activated common beam information); in addition, these at least one activated beam information may also be at least one most recently activated beam information.

[0190] Preset the information of the most recently used common beam on the BWP;

[0191] At least one preset common beam among the common beam information activated on the preset BWP; for example, the common beam information corresponding to the smallest code point among multiple activated common beam information.

[0192] The method for determining the preset BWP can be based on whether the network-side device has activated or indicated the beam information of the preset channel for the UE on the second BWP, or activated or indicated the common beam information. If so, the preset BWP can be the second BWP; otherwise, the preset BWP is the first BWP.

[0193] Optionally, the default BWP can always be the first BWP or always be the second BWP.

[0194] Optionally, the preset BWP includes at least one of the following:

[0195] The first BWP;

[0196] The second BWP.

[0197] Optionally, if the preset BWP includes the second BWP, the second BWP contains beam information that was activated or indicated during a first historical time period.

[0198] Optionally, the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information can be the same or different.

[0199] Optionally, any one of the preset beam information, including the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information, can be different beam information in different scenarios.

[0200] Optionally, the preset time slot includes:

[0201] Listen to the most recent time slot of CORESET;

[0202] Listen to any one or more time slots of CORESET;

[0203] The most recent time slot where the preset channel is located;

[0204] The preset channel is located in any one or more time slots.

[0205] Optionally, any one of the preset beam information, including the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information, can be the beam information in the most recent time slot where the preset channel is located, such as any one or more preset beam information in that time slot, or the beam information most recently used in that time slot, etc.

[0206] Optionally, any one of the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information can be beam information on any one or more time slots where the preset channel is located, such as any one or more preset beam information on that time slot, or the beam information most recently used on that time slot, etc.

[0207] Optionally, the preset channel includes at least one of the following:

[0208] The most recently transmitted PDCCH;

[0209] The most recently transmitted PDSCH;

[0210] The most recently transmitted PUCCH;

[0211] Preset PDCCH;

[0212] Preset PDSCH;

[0213] Preset PUCCH;

[0214] The CORESET with the smallest ID.

[0215] Optionally, any one of the preset beam information, including the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information, can be the beam information on the most recently transmitted PDCCH, such as any one or more preset beam information of the channel, or the beam information most recently used by the channel, etc.

[0216] Optionally, any one of the preset beam information, including the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information, can be the beam information on the most recently transmitted PDSCH, such as any one or more preset beam information of the channel, or the beam information most recently used by the channel, etc.

[0217] Optionally, any one of the preset beam information, including the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information, can be the beam information on the most recently transmitted PUCCH, such as any one or more preset beam information of the channel, or the beam information most recently used by the channel, etc.

[0218] Optionally, any one of the preset beam information, including the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information, can be the beam information on the preset PDCCH, such as any one or more preset beam information of the channel, or the beam information most recently used by the channel, etc.

[0219] Optionally, any one of the preset beam information, including the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information, can be the beam information on the preset PDSCH, such as any one or more preset beam information of the channel, or the beam information most recently used by the channel, etc.

[0220] Optionally, any one of the preset beam information, including the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information, can be the beam information on the preset PUCCH, such as any one or more preset beam information of the channel, or the beam information most recently used by the channel, etc.

[0221] Optionally, any one of the preset beam information, including the first preset beam information, the second preset beam information, the third preset beam information, the fourth preset beam information, the fifth preset beam information, the sixth preset beam information, the seventh preset beam information, and the eighth preset beam information, can be the beam information on the CORESET with the smallest ID, such as any one or more preset beam information of the CORESET, or the beam information most recently used by the CORESET, etc.

[0222] Optionally, the preset channel corresponds to the same TRP identification information as the target signal, or the preset beam information corresponds to the same TRP identification information as the target signal.

[0223] Optionally, the preset channel can correspond to the same TRP identification information as the target signal.

[0224] The aforementioned TRP identification information can be the higher-layer signaling parameter CORESETPoolIndex.

[0225] Optionally, a first delay is included in the time interval between the transmission time of any command and the activation time or beam application time of the beam information activated or indicated by the command, the first delay being on the second BWP;

[0226] The first delay includes at least one of the following:

[0227] The time required for the measurement and processing of the first SSB;

[0228] The time required for measurement and processing of TRS used for time-frequency tracking;

[0229] The time required for measurement and processing of CSI-RS used for time-frequency tracking;

[0230] The time required for L1-RSRP measurement and reporting.

[0231] Optionally, any one of the commands can be the first command, the second command, or the third command;

[0232] Optionally, the beam switching delay (TCI stateswitching delay) between the first command (such as MAC CE) and the effective time of the beam information activated or indicated by the first command (such as the application time of the beam information activated by the first command MAC CE) is the time interval between the transmission time of the first command and the activation time or beam application time of the beam information activated or indicated by the first command.

[0233] Optionally, the beam switching delay (TCI state switching delay) between the second command (such as MAC CE) and the effective time of the beam information activated by the second command (such as the second command MAC CE indicating the activation of M beam information) is the time interval between the transmission time of the second command and the activation time or beam application time of the beam information activated or indicated by the second command.

[0234] Optionally, the beam switching delay (TCI state switching delay) between the effective time of the third command (such as DCI) and the effective time of the beam information indicated by the third command (such as the application time of the beam information indicated by the third command DCI) is the time interval between the transmission time of the third command and the activation time or beam application time of the beam information activated or indicated by the third command.

[0235] Optionally, a first time delay may also be included within the aforementioned time interval;

[0236] Optionally, the first delay is on the second BWP;

[0237] Optionally, the first delay includes one or more of the following:

[0238] The time required for the measurement and processing of the first SSB;

[0239] The time required for measurement and processing of TRS used for time-frequency tracking;

[0240] The time required for measurement and processing of CSI-RS used for time-frequency tracking;

[0241] The time required for L1-RSRP measurement and reporting.

[0242] Optionally, the measurement and processing of the aforementioned RS (such as SSB, TRS, or CSI-RS) are performed on the second BWP, while the aforementioned commands and their ACKs can be performed on either the first or second BWP.

[0243] Optionally, the second duration between the command and the ACK of the command is determined based on at least one of the following:

[0244] The subcarrier spacing of the BWP where the command transmission is located;

[0245] The subcarrier interval of the BWP where the ACK transmission is located.

[0246] Optionally, the command can be a first command, a second command, or a third command;

[0247] Optionally, the second duration between the first command and the ACK of the first command is determined based on at least one of the following:

[0248] The subcarrier spacing of the BWP where the first command transmission is located;

[0249] The subcarrier interval of the BWP where the ACK transmission is located.

[0250] Optionally, the second duration between the second command and the ACK of the second command is determined based on at least one of the following:

[0251] The subcarrier spacing of the BWP where the second command transmission is located;

[0252] The subcarrier interval of the BWP where the ACK transmission is located.

[0253] Optionally, the second duration between the third command and the ACK of the third command is determined based on at least one of the following:

[0254] The subcarrier interval of the BWP in which the third command transmission is located;

[0255] The subcarrier interval of the BWP where the ACK transmission is located.

[0256] In this embodiment, the target beam information used for transmitting the target signal on the second BWP after switching from the first BWP is determined by using the time information of the first beam information and the time information of switching to the second BWP. This ensures that the target beam information determined by the network and the terminal is consistent, ensures beam alignment during BWP switching, and reduces interruption of information transmission.

[0257] It should be noted that the transmission method provided in this application embodiment can be executed by a transmission device, or by a control module within the transmission device for executing the transmission method. This application embodiment uses the execution of the transmission method by a transmission device as an example to illustrate the transmission device provided in this application embodiment.

[0258] Figure 4 This is a schematic diagram of the transmission device provided in the embodiments of this application, as shown below. Figure 4 As shown, the device includes: a first determining module 410 and a transmission module 420; wherein:

[0259] The first determining module 410 is used to determine, based on the time information of the first beam information and the time information of switching to the second BWP, the target beam information for transmitting the target signal on the second BWP when it is determined that a switch from the first BWP to the second BWP is required.

[0260] The transmission module 420 is used to transmit the target signal based on the target beam information;

[0261] The first beam information is sent to the terminal by the network-side device.

[0262] Optionally, if it is determined that a switch from the first BWP to the second BWP is required, the transmission device may, based on the timing information of the first beam information and the timing information of the switch to the second BWP, determine the target beam information for transmitting the target signal on the second BWP through the first determining module 410; and then transmit the target signal through the transmission module 420 based on the target beam information.

[0263] The target communication device is a network-side device or a terminal, and the first beam information is sent by the network-side device to the terminal.

[0264] In this embodiment, the target beam information used for transmitting the target signal on the second BWP after switching from the first BWP is determined by using the time information of the first beam information and the time information of switching to the second BWP. This ensures that the target beam information determined by the network and the terminal is consistent, ensures beam alignment during BWP switching, and reduces interruption of information transmission.

[0265] Optionally, the first determining module is further configured to:

[0266] The target beam information for transmitting the target signal is determined based on at least one of the target signal, the time information of the first beam information, and the time information of switching to the second BWP.

[0267] Optionally, when the target signal is PDCCH or PUCCH, or when the first beam information is common beam information, the time information of the first beam information includes the beam application time of the first beam information; the first beam information is indicated by the network side through a first command.

[0268] Optionally, the first determining module is further configured to perform at least one of the following:

[0269] If the timing information for switching to the second BWP is after the beam application time, the target beam information is determined to be the first beam information;

[0270] If the time information for switching to the second BWP is prior to the beam application time, it is determined that the target beam information is the first preset beam information prior to the beam application time.

[0271] If the timing information for switching to the second BWP is prior to the beam application time, then if the timing information is after the beam application time, the target beam information is determined to be the first beam information.

[0272] Optionally, when the target signal is a PDSCH, or when the first beam information is common beam information, the timing information of the first beam information includes at least one of the following:

[0273] The first activation time of M beam information, wherein the M beam information is the beam information activated by the network-side device through the second command and corresponding to the second BWP, and the first activation time is the effective time when the M beam information is activated, where M is a positive integer;

[0274] The time information corresponding to the third command is the beam application time of the first beam information indicated by the third command.

[0275] Optionally, the first determining module is further configured to perform at least one of the following:

[0276] If the transmission time of the target signal is before the time information corresponding to the third command, the target beam information is determined to be the fourth preset beam information;

[0277] If the transmission time of the target signal is after the time information corresponding to the third command and after the first activation time, then the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0278] The target signal transmission time is after the time information corresponding to the third command and before the first activation time, and the target beam information is the fifth preset beam information.

[0279] Optionally, the preset beam information includes at least one of the following:

[0280] Preset beam information on the BWP;

[0281] Beam information in the preset time slot;

[0282] Beam information for the preset channel;

[0283] Information on the most recently used beam;

[0284] At least one of N active beam information, where N is a positive integer;

[0285] At least one of the P most recently activated beam information, where P is a positive integer;

[0286] The most recently used public beam information.

[0287] Optionally, the preset time slot includes:

[0288] Listen to the most recent time slot of CORESET;

[0289] Listen to any one or more time slots of CORESET;

[0290] The most recent time slot where the preset channel is located;

[0291] The preset channel is located in any one or more time slots.

[0292] Optionally, the preset BWP includes at least one of the following:

[0293] The first BWP;

[0294] The second BWP.

[0295] Optionally, if the preset BWP includes the second BWP, the second BWP contains beam information that was activated or indicated during a first historical time period.

[0296] Optionally, the preset channel includes at least one of the following:

[0297] The most recently transmitted PDCCH;

[0298] The most recently transmitted PDSCH;

[0299] The most recently transmitted PUCCH;

[0300] Preset PDCCH;

[0301] Preset PDSCH;

[0302] Preset PUCCH;

[0303] The CORESET with the smallest ID.

[0304] Optionally, the preset channel corresponds to the same TRP identification information as the target signal, or the preset beam information corresponds to the same TRP identification information as the target signal.

[0305] Optionally, a first delay is included in the time interval between the transmission time of any command and the activation time or beam application time of the beam information activated or indicated by the command, the first delay being on the second BWP;

[0306] The first delay includes at least one of the following:

[0307] The time required for the measurement and processing of the first SSB;

[0308] The time required for measurement and processing of TRS used for time-frequency tracking;

[0309] The time required for measurement and processing of CSI-RS used for time-frequency tracking;

[0310] The time required for L1-RSRP measurement and reporting.

[0311] Optionally, the second duration between the command and the ACK of the command is determined based on at least one of the following:

[0312] The subcarrier spacing of the BWP where the command transmission is located;

[0313] The subcarrier interval of the BWP where the ACK transmission is located.

[0314] In this embodiment, the target beam information used for transmitting the target signal on the second BWP after switching from the first BWP is determined by using the time information of the first beam information and the time information of switching to the second BWP. This ensures that the target beam information determined by the network and the terminal is consistent, ensures beam alignment during BWP switching, and reduces interruption of information transmission.

[0315] The transmission device in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the type of terminal.

[0316] The transmission device provided in this application embodiment can achieve... Figures 2 to 3 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0317] Optional, Figure 5 This is a schematic diagram of the structure of the communication device provided in the embodiments of this application, such as... Figure 5 As shown, this application embodiment also provides a communication device 500, including a processor 501, a memory 502, and a program or instructions stored in the memory 502 and executable on the processor 501. For example, when the communication device 500 is a terminal, the program or instructions executed by the processor 501 implement the various processes of the above-described transmission method embodiment and achieve the same technical effect. When the communication device 500 is a network-side device, the program or instructions executed by the processor 501 implement the various processes of the above-described transmission method embodiment and achieve the same technical effect; to avoid repetition, further details are omitted here.

[0318] This application embodiment also provides a target communication device, including a processor and a communication interface, wherein the processor is used for:

[0319] When it is determined that a switch from the first BWP to the second BWP is required, the target beam information for transmitting the target signal on the second BWP is determined based on the time information of the first beam information and the time information of the switch to the second BWP.

[0320] The communication interface is used for:

[0321] The target signal is transmitted based on the target beam information;

[0322] The target communication device is a network-side device or a terminal, and the first beam information is sent from the network-side device to the terminal.

[0323] The embodiment of the target communication device corresponds to the method embodiment of the target communication device described above. All implementation processes and methods of the method embodiment described above can be applied to the embodiment of the target communication device and can achieve the same technical effect.

[0324] Optionally, the target communication device may be a terminal;

[0325] This application embodiment also provides a terminal, including a processor and a communication interface, wherein the processor is used for:

[0326] When it is determined that a switch from the first BWP to the second BWP is required, the target beam information for transmitting the target signal on the second BWP is determined based on the time information of the first beam information and the time information of the switch to the second BWP.

[0327] The communication interface is used for:

[0328] The target signal is transmitted based on the target beam information;

[0329] In this embodiment, the first beam information is sent to the target communication device terminal by the network-side device. This terminal embodiment corresponds to the above method embodiment, and all implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effect.

[0330] Specifically, Figure 6 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0331] The terminal 600 includes, but is not limited to, at least some of the following components: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, and processor 610.

[0332] Those skilled in the art will understand that the terminal 600 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 610 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 6 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0333] It should be understood that, in this embodiment, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042. The GPU 6041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 607 includes a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0334] In this embodiment, the radio frequency unit 601 receives downlink data from the network-side device and processes it for the processor 610; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0335] The memory 609 can be used to store software programs or instructions and various data. The memory 609 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 609 may include high-speed random access memory and non-volatile memory, wherein the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0336] Processor 610 may include one or more processing units; optionally, processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 610.

[0337] The processor 610 is used for:

[0338] When it is determined that a switch from the first BWP to the second BWP is required, the target communication device determines the target beam information for transmitting the target signal on the second BWP based on the time information of the first beam information and the time information of the switch to the second BWP.

[0339] The target communication device transmits the target signal based on the target beam information;

[0340] The target communication device is a network-side device or a terminal, and the first beam information is sent from the network-side device to the terminal.

[0341] In this embodiment, the target beam information used for transmitting the target signal on the second BWP after switching from the first BWP is determined by using the time information of the first beam information and the time information of switching to the second BWP. This ensures that the target beam information determined by the network and the terminal is consistent, ensures beam alignment during BWP switching, and reduces interruption of information transmission.

[0342] Optionally, the processor 610 is used for:

[0343] The target beam information for transmitting the target signal is determined based on at least one of the target signal, the time information of the first beam information, and the time information of switching to the second BWP.

[0344] Optionally, when the target signal is PDCCH or PUCCH, or when the first beam information is common beam information, the time information of the first beam information includes the beam application time of the first beam information; the first beam information is indicated by the network side through a first command.

[0345] Optionally, the processor 610 is used for at least one of the following:

[0346] If the timing information for switching to the second BWP is after the beam application time, the target beam information is determined to be the first beam information;

[0347] If the time information for switching to the second BWP is prior to the beam application time, it is determined that the target beam information is the first preset beam information prior to the beam application time.

[0348] If the timing information for switching to the second BWP is prior to the beam application time, then if the timing information is after the beam application time, the target beam information is determined to be the first beam information.

[0349] Optionally, when the target signal is a PDSCH, or when the first beam information is common beam information, the timing information of the first beam information includes at least one of the following:

[0350] The first activation time of M beam information, wherein the M beam information is the beam information activated by the network-side device through the second command and corresponding to the second BWP, and the first activation time is the effective time when the M beam information is activated, where M is a positive integer;

[0351] The time information corresponding to the third command is the beam application time of the first beam information indicated by the third command.

[0352] Optionally, the processor 610 is used for at least one of the following:

[0353] If the transmission time of the target signal is before the time information corresponding to the third command, the target beam information is determined to be the fourth preset beam information;

[0354] If the transmission time of the target signal is after the time information corresponding to the third command and after the first activation time, then the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0355] The target signal transmission time is after the time information corresponding to the third command and before the first activation time, and the target beam information is the fifth preset beam information.

[0356] Optionally, the preset beam information includes at least one of the following:

[0357] Preset beam information on the BWP;

[0358] Beam information in the preset time slot;

[0359] Beam information for the preset channel;

[0360] Information on the most recently used beam;

[0361] At least one of N active beam information, where N is a positive integer;

[0362] At least one of the P most recently activated beam information, where P is a positive integer;

[0363] The most recently used public beam information.

[0364] Optionally, the preset time slot includes:

[0365] Listen to the most recent time slot of CORESET;

[0366] Listen to any one or more time slots of CORESET;

[0367] The most recent time slot where the preset channel is located;

[0368] The preset channel is located in any one or more time slots.

[0369] Optionally, the preset BWP includes at least one of the following:

[0370] The first BWP;

[0371] The second BWP.

[0372] Optionally, if the preset BWP includes the second BWP, the second BWP contains beam information that was activated or indicated during a first historical time period.

[0373] Optionally, the preset channel includes at least one of the following:

[0374] The most recently transmitted PDCCH;

[0375] The most recently transmitted PDSCH;

[0376] The most recently transmitted PUCCH;

[0377] Preset PDCCH;

[0378] Preset PDSCH;

[0379] Preset PUCCH;

[0380] The CORESET with the smallest ID.

[0381] Optionally, the preset channel carries the same TRP identification information as the target signal.

[0382] Optionally, a first delay is included in the time interval between the transmission time of any command and the activation time or beam application time of the beam information activated or indicated by the command, the first delay being on the second BWP;

[0383] The first delay includes at least one of the following:

[0384] The time required for the measurement and processing of the first SSB;

[0385] The time required for measurement and processing of TRS used for time-frequency tracking;

[0386] The time required for measurement and processing of CSI-RS used for time-frequency tracking;

[0387] The time required for L1-RSRP measurement and reporting.

[0388] Optionally, the second duration between the command and the ACK of the command is determined based on at least one of the following:

[0389] The subcarrier spacing of the BWP where the command transmission is located;

[0390] The subcarrier interval of the BWP where the ACK transmission is located.

[0391] In this embodiment, the target beam information used for transmitting the target signal on the second BWP after switching from the first BWP is determined by using the time information of the first beam information and the time information of switching to the second BWP. This ensures that the target beam information determined by the network and the terminal is consistent, ensures beam alignment during BWP switching, and reduces interruption of information transmission.

[0392] Optionally, the target communication device may be a network-side device;

[0393] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the processor is used for:

[0394] When it is determined that a switch from the first BWP to the second BWP is required, the target beam information for transmitting the target signal on the second BWP is determined based on the time information of the first beam information and the time information of the switch to the second BWP.

[0395] The communication interface is used for:

[0396] The target signal is transmitted based on the target beam information;

[0397] In this embodiment, the target communication device is a network-side device, and the first beam information is sent from the network-side device to the terminal. This network-side device embodiment corresponds to the above method embodiment, and all implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effect.

[0398] Specifically, embodiments of this application also provide a network-side device. Figure 7 To illustrate the hardware structure of a network-side device according to an embodiment of this application, as shown in the diagram... Figure 7As shown, the network device 700 includes an antenna 701, a radio frequency (RF) device 702, and a baseband device 703. The antenna 701 is connected to the RF device 702. In the uplink direction, the RF device 702 receives information through the antenna 701 and transmits the received information to the baseband device 703 for processing. In the downlink direction, the baseband device 703 processes the information to be transmitted and sends it to the RF device 702. The RF device 702 processes the received information and transmits it through the antenna 701.

[0399] The aforementioned frequency band processing device can be located in the baseband device 703. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 703, which includes a processor 704 and a memory 705.

[0400] The baseband device 703 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 7 As shown, one of the chips, for example, is a processor 704, which is connected to a memory 705 to call the program in the memory 705 and execute the network device operations shown in the above method embodiment.

[0401] The baseband device 703 may also include a network interface 706 for exchanging information with the radio frequency device 702, such as a common public radio interface (CPRI).

[0402] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 705 and executable on processor 704, wherein processor 704 calls the instructions or programs in memory 705 to execute... Figure 4 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0403] The processor 704 is used for:

[0404] When it is determined that a switch from the first BWP to the second BWP is required, the target communication device determines the target beam information for transmitting the target signal on the second BWP based on the time information of the first beam information and the time information of the switch to the second BWP.

[0405] The target communication device transmits the target signal based on the target beam information;

[0406] The target communication device is a network-side device or a terminal, and the first beam information is sent from the network-side device to the terminal.

[0407] In this embodiment, the target beam information used for transmitting the target signal on the second BWP after switching from the first BWP is determined by using the time information of the first beam information and the time information of switching to the second BWP. This ensures that the target beam information determined by the network and the terminal is consistent, ensures beam alignment during BWP switching, and reduces interruption of information transmission.

[0408] Optionally, processor 704 is used for:

[0409] The target beam information for transmitting the target signal is determined based on at least one of the target signal, the time information of the first beam information, and the time information of switching to the second BWP.

[0410] Optionally, when the target signal is PDCCH or PUCCH, or when the first beam information is common beam information, the time information of the first beam information includes the beam application time of the first beam information; the first beam information is indicated by the network side through a first command.

[0411] Optionally, the processor 704 is used for at least one of the following:

[0412] If the timing information for switching to the second BWP is after the beam application time, the target beam information is determined to be the first beam information;

[0413] If the time information for switching to the second BWP is prior to the beam application time, it is determined that the target beam information is the first preset beam information prior to the beam application time.

[0414] If the timing information for switching to the second BWP is prior to the beam application time, then if the timing information is after the beam application time, the target beam information is determined to be the first beam information.

[0415] Optionally, when the target signal is a PDSCH, or when the first beam information is common beam information, the timing information of the first beam information includes at least one of the following:

[0416] The first activation time of M beam information, wherein the M beam information is the beam information activated by the network-side device through the second command and corresponding to the second BWP, and the first activation time is the effective time when the M beam information is activated, where M is a positive integer;

[0417] The time information corresponding to the third command is the beam application time of the first beam information indicated by the third command.

[0418] Optionally, the processor 704 is used for at least one of the following:

[0419] If the transmission time of the target signal is before the time information corresponding to the third command, the target beam information is determined to be the fourth preset beam information;

[0420] If the transmission time of the target signal is after the time information corresponding to the third command and after the first activation time, then the target beam information is determined to be the first beam information; the first beam information is at least one of the M beam information.

[0421] The target signal transmission time is after the time information corresponding to the third command and before the first activation time, and the target beam information is the fifth preset beam information.

[0422] Optionally, the preset beam information includes at least one of the following:

[0423] Preset beam information on the BWP;

[0424] Beam information in the preset time slot;

[0425] Beam information for the preset channel;

[0426] Information on the most recently used beam;

[0427] At least one of N active beam information, where N is a positive integer;

[0428] At least one of the P most recently activated beam information, where P is a positive integer;

[0429] The most recently used public beam information.

[0430] Optionally, the preset time slot includes:

[0431] Listen to the most recent time slot of CORESET;

[0432] Listen to any one or more time slots of CORESET;

[0433] The most recent time slot where the preset channel is located;

[0434] The preset channel is located in any one or more time slots.

[0435] Optionally, the preset BWP includes at least one of the following:

[0436] The first BWP;

[0437] The second BWP.

[0438] Optionally, if the preset BWP includes the second BWP, the second BWP contains beam information that was activated or indicated during a first historical time period.

[0439] Optionally, the preset channel includes at least one of the following:

[0440] The most recently transmitted PDCCH;

[0441] The most recently transmitted PDSCH;

[0442] The most recently transmitted PUCCH;

[0443] Preset PDCCH;

[0444] Preset PDSCH;

[0445] Preset PUCCH;

[0446] The CORESET with the smallest ID.

[0447] Optionally, the preset channel carries the same TRP identification information as the target signal.

[0448] Optionally, a first delay is included in the time interval between the transmission time of any command and the activation time or beam application time of the beam information activated or indicated by the command, the first delay being on the second BWP;

[0449] The first delay includes at least one of the following:

[0450] The time required for the measurement and processing of the first SSB;

[0451] The time required for measurement and processing of TRS used for time-frequency tracking;

[0452] The time required for measurement and processing of CSI-RS used for time-frequency tracking;

[0453] The time required for L1-RSRP measurement and reporting.

[0454] Optionally, the second duration between the command and the ACK of the command is determined based on at least one of the following:

[0455] The subcarrier spacing of the BWP where the command transmission is located;

[0456] The subcarrier interval of the BWP where the ACK transmission is located.

[0457] In this embodiment, the target beam information used for transmitting the target signal on the second BWP after switching from the first BWP is determined by using the time information of the first beam information and the time information of switching to the second BWP. This ensures that the target beam information determined by the network and the terminal is consistent, ensures beam alignment during BWP switching, and reduces interruption of information transmission.

[0458] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described transmission method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0459] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0460] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described transmission method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0461] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0462] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0463] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0464] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A transmission method, characterized by, Comprise: In a case where it is determined that switching from the first BWP to the second BWP is needed, the target communication device determines target beam information for transmitting a target signal on the second BWP based on time information of the first beam information and time information of switching to the second BWP; The target communication device determines the target beam information for transmitting the target signal based on the time information of the first beam information and the time information of switching to the second BWP, comprising: determining the target beam information for transmitting the target signal based on at least one of the target signal, the time information of the first beam information, and the time information of switching to the second BWP; in a case where the first beam information is common beam information, the time information of the first beam information comprises a beam application time of the first beam information, and the first beam information is indicated by a network side through a first command; The determination of the target beam information based on at least one of the target signal, the time information of the first beam information, and the time information of switching to the second BWP, comprises at least one of: in a case where the time information of switching to the second BWP is after the beam application time, determining that the target beam information is the first beam information; in a case where the time information of switching to the second BWP is before the beam application time, determining that before the beam application time, the target beam information is first preset beam information; in a case where the time information of switching to the second BWP is before the beam application time, determining that after the beam application time, the target beam information is the first beam information; The target communication device transmits the target signal based on the target beam information; Wherein, the target communication device is a network side device or a terminal, and the first beam information is transmitted by the network side device to the terminal.

2. The transmission method of claim 1, wherein, In a case where the target signal is a physical downlink control channel (PDCCH) or a physical uplink control channel (PUCCH), the time information of the first beam information comprises a beam application time of the first beam information; and the first beam information is indicated by a network side through a first command.

3. The transmission method of claim 1, wherein, In a case where the target signal is a physical downlink shared channel (PDSCH), or in a case where the first beam information is common beam information, the time information of the first beam information comprises at least one of: A first activation time of M beam information, the M beam information being beam information corresponding to the second BWP and activated by a second command of the network side device, the first activation time being an effective time of activation of the M beam information, M being a positive integer; Time information corresponding to a third command, the time information corresponding to the third command being a beam application time of the first beam information indicated by the third command.

4. The transmission method of claim 3, wherein, The determination of the target beam information based on at least one of the target signal, the time information of the first beam information, and the time information of switching to the second BWP, comprises at least one of: In a case where the transmission time of the target signal is before the time information corresponding to the third command, the target beam information is determined as fourth preset beam information; In a case where the transmission time of the target signal is after the time information corresponding to the third command, and the transmission time of the target signal is after the first activation time, the target beam information is the first beam information; the first beam information is at least one of the M beam information; In a case where the transmission time of the target signal is after the time information corresponding to the third command, and the transmission time of the target signal is before the first activation time, the target beam information is fifth preset beam information.

5. The transmission method according to claim 1 or 4, characterized in that, The preset beam information includes at least one of: Beam information on a preset BWP; Beam information on a preset time slot; Beam information of a preset channel; Recently used beam information; At least one of N activated beam information, N being a positive integer; At least one of P recently activated beam information, P being a positive integer; Recently used common beam information.

6. The transmission method of claim 5, wherein, The preset time slot includes: The last time slot of monitoring CORESET; Any one or more time slots of monitoring CORESET; The last time slot of a preset channel; Any one or more time slots of a preset channel.

7. The transmission method according to claim 5 or 6, characterized in that, The preset BWP includes at least one of: The first BWP; The second BWP.

8. The transmission method of claim 7, wherein, In a case where the preset BWP includes the second BWP, there is beam information activated or indicated in a first historical time period on the second BWP.

9. The transmission method of claim 5 or 6, characterized by, The preset channel includes at least one of: The last transmitted PDCCH; The last transmitted PDSCH; The last transmitted PUCCH; Preset PDCCH; Preset PDSCH; Preset PUCCH; CORESET with the smallest ID.

10. The transmission method of claim 9, wherein, The preset channel corresponds to the same TRP identification information as the target signal, or the preset beam information corresponds to the same TRP identification information as the target signal.

11. The transmission method according to claim 2 or 3 or 4, characterized in that, A first time delay is included in a time interval between the transmission time of any command and the activation time or beam application time of the beam information activated or indicated by the command, and the first time delay is on the second BWP; The first time delay includes at least one of: The time required for measurement and processing of the first SSB; The time required for measurement and processing of TRS for time-frequency tracking; The time required for measurement and processing of CSI-RS for time-frequency tracking; The time required for measurement and reporting of L1-RSRP.

12. The transmission method of claim 11, wherein, A second time length between the command and the ACK of the command is determined based on at least one of: The subcarrier spacing of the BWP where the command is transmitted; The subcarrier spacing of the BWP where the ACK is transmitted.

13. A transmitting device, comprising: The apparatus includes: A first determination module configured to, in a case where it is determined that switching from a first BWP to a second BWP is needed, determine target beam information for transmitting a target signal on the second BWP based on time information of first beam information and time information of switching to the second BWP; transmitting the target signal based on the target beam information; wherein the first beam information is sent by a network side device to a terminal; the first determining module is further configured to determine the target beam information for transmitting the target signal based on at least one of the target signal, time information of the first beam information, and time information of switching to the second BWP; in a case where the first beam information is common beam information, the time information of the first beam information comprises a beam application time of the first beam information; and the first beam information is indicated by the network side through a first command; the first determining module is further configured to determine the target beam information as the first beam information in a case where the time information of switching to the second BWP is after the beam application time; determine the target beam information as first preset beam information before the beam application time in a case where the time information of switching to the second BWP is before the beam application time; and determine the target beam information as the first beam information after the beam application time in a case where the time information of switching to the second BWP is before the beam application time.

14. The transmitting apparatus of claim 13, wherein, in a case where the target signal is PDCCH or PUCCH, the time information of the first beam information comprises a beam application time of the first beam information; and the first beam information is indicated by the network side through a first command.

15. The transmitting apparatus of claim 13, wherein, in a case where the target signal is PDSCH, or in a case where the first beam information is common beam information, the time information of the first beam information comprises at least one of: a first activation time of M beam information, the M beam information being beam information of the second BWP activated by the network side through a second command, the first activation time being a valid time at which the M beam information is activated, M being a positive integer; time information corresponding to a third command, the time information corresponding to the third command being a beam application time of the first beam information indicated by the third command.

16. The transmitting apparatus of claim 15, wherein, the first determining module is further configured to at least one of: determine the target beam information as fourth preset beam information in a case where a transmission time of the target signal is before the time information corresponding to the third command; determine the target beam information as the first beam information in a case where the transmission time of the target signal is after the time information corresponding to the third command, and the transmission time of the target signal is after the first activation time, the first beam information being at least one of the M beam information; determine the target beam information as fifth preset beam information in a case where the transmission time of the target signal is after the time information corresponding to the third command, and the transmission time of the target signal is before the first activation time.

17. The transmitting apparatus of claim 13 or 16, wherein, preset beam information comprises at least one of: beam information on a preset BWP; beam information on a preset time slot; beam information of a preset channel; beam information of a most recently used beam; at least one of N activated beam information, N being a positive integer; and at least one of P recently activated beam information, P being a positive integer; common beam information used most recently.

18. The transmitting apparatus of claim 17, wherein, The preset time slot includes: the most recent time slot of monitoring the CORESET; any one or more time slots of monitoring the CORESET; the most recent time slot of the preset channel; any one or more time slots of the preset channel.

19. The transmitting apparatus of claim 17 or 18, wherein, The preset BWP includes at least one of: The first BWP; The second BWP.

20. The transmitting apparatus of claim 19, wherein, In the case where the preset BWP includes the second BWP, there is beam information activated or indicated in the first historical time period on the second BWP.

21. The transmitting apparatus of claim 17 or 18, wherein, The preset channel includes at least one of: PDCCH transmitted most recently; PDSCH transmitted most recently; PUCCH transmitted most recently; preset PDCCH; preset PDSCH; preset PUCCH; CORESET with the smallest ID.

22. The transmitting apparatus of claim 21, wherein, The preset channel carries the same TRP identification information as the target signal.

23. The transmitting apparatus according to claim 14 or 15 or 16, characterized by, The first delay is included in the time interval between the transmission time of any one command and the activation time or beam application time of the beam information activated or indicated by the command, and the first delay is on the second BWP; The first delay includes at least one of: the time required for measurement and processing of the first SSB; the time required for measurement and processing of TRS for time-frequency tracking; the time required for measurement and processing of CSI-RS for time-frequency tracking; the time required for measurement and reporting of L1-RSRP.

24. The transmitting apparatus of claim 23, wherein, The second time length between the command and the ACK of the command is determined based on at least one of: the subcarrier spacing of the BWP where the command is transmitted; the subcarrier spacing of the BWP where the ACK is transmitted.

25. A target communication device, characterized by The processor, the memory and the program or instructions stored on the memory and executable on the processor are included, and the processor executes the program or instructions to implement the steps of the transmission method according to any one of claims 1 to 12.

26. A readable storage medium characterized by, The program or instructions are stored on the readable storage medium, and the processor executes the program or instructions to implement the steps of the transmission method according to any one of claims 1 to 12.

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