Method for determining beam information, communication device, and readable storage medium

Abstract

The present application discloses a method, an apparatus, a communication device and a storage medium for determining beam information, which includes the steps of: determining target beam information when a first period and a second period overlap, the target beam information being beam information in an overlapping period of the first period and the second period, the first period being a period before the application time of the first beam information, the second period being a period before the application time of the second beam information, the first beam information being beam information of a first channel / first reference signal, the second beam information being beam information of a second channel / second reference signal, and the first beam information being common beam information; and transmitting a target channel / target reference signal based on the target beam information, the target channel being the first channel and / or the second channel, and the target reference signal being the first reference signal and / or the second reference signal.

Description

Technical Field

[0001] This application belongs to the technical field of communications, and specifically relates to a method and apparatus for determining beam information, a communication device, and a storage medium.

Background Art

[0002] After beam measurement and beam reporting on the network side, the network side can construct a beam link between the network side and a user equipment (UE) by performing beam indication on downlink and uplink channels or reference signals, thereby realizing the transmission of channels or reference signals. In the unified Transmission Configuration Indication (TCI) framework of the NR system, the network side can indicate the use of the same beam, also called a common beam, for multiple channels. The beam indicated by the network side using a Media Access Control-Control Element (MAC CE) or Downlink Control Information (DCI) can be used for multiple channel transmissions.

[0003] However, when time overlap occurs before different beams (for example, different common beams or beams of a specific channel) become effective, how to determine the beam used for channel / reference signal transmission during the overlapping period is an issue that urgently needs to be solved.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Embodiments of this application provide a method and apparatus for determining beam information, a communication device, and a storage medium that can solve the problem of how to determine the beam used for channel / reference signal transmission during the overlapping period.

Means for Solving the Problems

[0005] On the first aspect, when a first period and a second period overlap, a step of determining target beam information, wherein the target beam information is beam information within the overlapping period of the first period and the second period, the first period is a period before the application time of the first beam information, the second period is a period before the application time of the second beam information, the first beam information is beam information of a first channel / a first reference signal, the second beam information is beam information of a second channel / a second reference signal, and the first beam information is common beam information; and a step of transmitting a target channel / a target reference signal based on the target beam information, wherein the target channel is the first channel and / or the second channel, and the target reference signal is the first reference signal and / or the second reference signal. A method for determining beam information is provided.

[0006] On the second aspect, a device for determining beam information is provided, which includes a determination module and a transmission module. The determination module is for determining target beam information when a first period and a second period overlap, wherein the target beam information is beam information within the overlapping period of the first period and the second period, the first period is a period before the application time of the first beam information, the second period is a period before the application time of the second beam information, the first beam information is beam information of a first channel / a first reference signal, the second beam information is beam information of a second channel / a second reference signal, and the first beam information is common beam information. The transmission module is for transmitting a target channel / a target reference signal based on the target beam information determined by the determination module, wherein the target channel is the first channel and / or the second channel, and the target reference signal is the first reference signal and / or the second reference signal.

[0007] On the third aspect, a communication device is provided, which includes a processor, a memory, and a program or command stored in the memory and executable by the processor. When the program or command is executed by the processor, the steps of the method described in the first aspect are realized.

[0008] On the fourth side, a communication device including a processor and a communication interface is provided. When the first period and the second period overlap, the processor is for determining target beam information, and the target beam information is beam information within the overlapping period of the first period and the second period. The first period is a period before the application time of the first beam information, the second period is a period before the application time of the second beam information, the first beam information is beam information of the first channel / the first reference signal, the second beam information is beam information of the second channel / the second reference signal, and the first beam information is common beam information. The communication interface is for transmitting a target channel / a target reference signal based on the target beam information, the target channel is the first channel and / or the second channel, and the target reference signal is the first reference signal and / or the second reference signal.

[0009] On the fifth side, a readable storage medium storing a program or command that realizes the steps of the method described in the first side when executed by a processor is provided.

[0010] On the sixth side, a chip including a combined processor and a communication interface is provided, and when the processor executes a program or command, it is for realizing the method described in the first side.

[0011] On the seventh side, a computer program / program product stored in a non - volatile storage medium and realized the steps of the method for determining beam information described in the first side when executed by at least one processor is provided.

Advantages of the Invention

[0012] In an embodiment of the present application, when the first period and the second period overlap, the target device can determine the beam information within the overlapping period and transmit the channel / reference signal based on the beam information. The first period is a period before the application time point of the first beam information, and the second period is a period before the application time point of the second beam information. In this technical means, when a time overlap occurs before the first beam information and the second beam information become effective, that is, when a time overlap occurs before different beam information instructed by the network-side device becomes effective, the target device can determine the beam information within the overlapping period, so that the channel / reference signal can be transmitted by the beam information within the overlapping period, thereby ensuring the accurate transmission of the channel / reference signal between the UE and the network-side device.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0014] In the following, while referring to the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Naturally, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

[0015] The technical terms such as "first", "second", etc. in the description and claims of the embodiments of the present application are not used to describe a specific order of objects, but to distinguish different objects. It should be noted that such terms may be interchangeable in some cases so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein. Also, in the description and claims, "and / or" represents at least one of the connected objects, and the symbol " / " generally indicates that the related objects before and after are in an "or" relationship.

[0016] It should be noted that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system. Furthermore, for example, it 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. In the embodiments of the present application, the terms "system" and "network" are often used interchangeably. The technology described herein may be used in the above-described systems and wireless communication technologies, or in other systems and wireless communication technologies. However, for the purpose of illustration in the following description, the New Radio (NR) system is described, and the NR term is used in most of the following descriptions. These technologies are applicable beyond the NR system and are also applicable, for example, to the 6th Generation (6G) communication system.

[0017] FIG. 1 is a schematic diagram showing the configuration of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a UE 11 and a network-side device 12. The UE 11 is also referred to as a terminal device or a terminal. The UE 11 may be a terminal-side device such as a mobile phone, a tablet personal computer, a laptop computer (also referred to as a notebook computer), a personal digital assistant (PDA), a personal handyphone system, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device (including a bracelet, earphone, glasses, etc.), a vehicle user equipment (VUE), or a pedestrian user equipment (PUE). In the embodiments of the present application, the specific type of the UE 11 is not limited. The network-side device 12 may be a base station or a core network. The base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home Node B, a home evolved Node B, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or other appropriate terms in the art. As long as the same technical effect can be achieved, the base station is not limited to specific technical terms. In the embodiments of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0018] Next, concepts and / or terms related to the synchronous resource allocation method, apparatus, user equipment, and storage medium provided by the embodiments of the present application will be described.

[0019] 1. Beam measurement and beam reporting Analog beamforming is emitted over the entire bandwidth, and the array elements in each polarization direction on the panel of each high-frequency antenna array can transmit analog beams only by time-division multiplexing. The weighting value for analog beamforming is realized by adjusting parameters of devices such as radio frequency front-end phase shifters.

[0020] Generally, training of the analog beamforming vector is performed by the polling method. That is, the array elements in each polarization direction of each antenna panel transmit a training signal (i.e., a candidate forming vector) by time-division multiplexing within a predetermined time, and the terminal measures it and reports it by a feedback beam. Thereby, the network side realizes analog beam emission by the training signal during the next transmission service. The beam report content usually includes a plurality of optimal emission beam identifiers and the received power of each measured emission beam.

[0021] During beam measurement, the network arranges a reference signal resource set (RS resource set) that includes at least one reference signal resource, such as a Synchronization Signal Block (SSB) resource or a Channel State Information-Reference Signals (CSI-RS) resource. The UE measures the layer 1 (L1)-Reference Signal Receiving Power (RSRP) / L1-Signal to Interference plus Noise Ratio (SINR) of each RS resource and reports at least one optimal measurement result to the network. The reported content includes an SSB Resource Indicator (SSBRI) or a CSI-RS Resource Indicator (CRI), and the corresponding L1-RSRP / L1-SINR. Based on this reported content, at least one optimal beam and its quality are reflected, and the network determines the beam information for transmitting channels or signals between the UE and the network accordingly.

[0022] 2. Regarding the beam indication framework After beam measurement and beam reporting, the network can construct a beam link between the network and the UE and realize the transmission of channels or reference signals by performing beam indication on downlink and uplink channels or reference signals. Currently, there are the following beam indication means for each channel or reference signal.

[0023] As a beam indication for the Physical Downlink Control Channel (PDCCH), the network arranges K TCI states for each Control Resource Set (CORESET) by means of Radio Resource Control (RRC) signaling. When K>1, one TCI state is indicated or activated by means of a MAC CE, and when K=1, no additional MAC CE command is required. When the UE monitors the PDCCH, the same Quasi-colocation (QCL) is used for all search spaces within the CORESET. That is, the PDCCH is monitored with the same TCI state. The reference signal (RS) (e.g., periodic CSI-RS resource, semi-persistent CSI-RS resource, SSB, etc.) in the TCI state and the UE-specific PDCCH demodulation reference signal (DMRS) ports are spatially QCL. The UE can determine the reception beam for receiving the PDCCH based on the TCI state.

[0024] As a beam indication for the Physical Downlink Shared Channel (PDSCH), the network configures M TCI states by means of RRC signaling, activates 2N TCI states by means of a MAC CE command, and notifies the TCI state by means of the N-bit TCI field in DCI. The RS in the TCI state and the DMRS ports of the PDSCH to be scheduled are QCL. The UE can determine the reception beam for receiving the PDSCH based on the TCI state. When the time interval between DCI and PDSCH is smaller than the default threshold (the time Duration For QCL of the higher layer parameter QCL configured by the network based on the UE's capabilities), it is necessary to transmit the PDSCH with the default beam information. For example, in the active Bandwidth Part (BWP) of the serving cell, the default beam information is determined by the QCL information of the CORESET having the minimum CORESET identifier (ID) in the nearest slot monitored by the UE. In the case of scheduling across carriers, in the active BWP of the cell where the PDSCH is located, the default beam information is determined by the activated TCI state having the minimum identifier among the TCI states used for the activation of the PDSCH.

[0025] As a beam indication for CSI-RS, when the CSI-RS type is periodic CSI-RS, the network configures the QCL information for the CSI-RS resource by means of RRC signaling. When the CSI-RS type is semi-persistent CSI-RS, the network indicates the QCL information when activating one CSI-RS resource in the CSI-RS resource set configured by RRC by means of a MAC CE command. When the CSI-RS type is aperiodic CSI-RS, the network configures the QCL for the CSI-RS resource by means of RRC signaling and triggers the CSI-RS by means of DCI.

[0026] As a beam indication for the Physical Uplink Control Channel (PUCCH), the network uses RRC signaling to arrange spatial relation information for each PUCCH resource based on the parameter PUCCH-Spatial Relation Information. When there are multiple pieces of spatial relation information arranged for a PUCCH resource, one of them is indicated or activated by MAC-CE. When there is only one piece of spatial relation information arranged for a PUCCH resource, no additional MAC CE command is required.

[0027] As a beam indication for the Physical Uplink Shared Channel (PUSCH), when the spatial relation information of the PUSCH is that the PUSCH is scheduled by DCI carried on the PDCCH, each SRI code point in the Sounding Reference Signal Resource Indicator (SRI) field in the DCI indicates one SRI, and the SRI is for indicating the spatial relation information of the PUSCH.

[0028] As a beam indication for SRS, when the SRS type is periodic SRS, the network arranges spatial relation information for the SRS resource by RRC signaling. When the SRS type is semi-persistent SRS or aperiodic SRS, the network arranges spatial relation information for the SRS resource by RRC signaling, and may further update the spatial relation information of the SRS resource by MAC CE command.

[0029] 3. Regarding the Beam Application Time (BAT) during beam switching When the network activates the TCI state by means of a MAC CE, it defines the delay in switching the TCI state (the TCI state is used for the indication of beam information) and classifies the TCI state into two types: known and unknown.

[0030] When the target TCI state is known and the UE receives a MAC CE in slot n, the switching delay of the TCI state is

Number

[0031] When the target TCI state is unknown and the UE receives a MAC CE in slot n, the switching delay of the TCI state is

Number

[0032] T HARQ is the time duration from downlink data transmission to information confirmation (Acknowledgement, ACK), and T first-SSB is the transmission time of the first SSB after the UE decodes the MAC CE, and T SSB-proc = 2 ms. If the TCI state is not included in the TCI state list where the TCI state is activated, additional processing time is required. In the case of an unknown TCI state, the additional processing time is the time required for L1-RSRP measurement and reporting.

[0033] The network arranges a threshold for the QCL duration parameter based on the capabilities of the UE. When the PDSCH is scheduled by DCI in slot n, if the offset between the DCI and the PDSCH is smaller than the threshold, the PDSCH is transmitted using the default beam; if the offset between the DCI and the PDSCH is greater than or equal to the threshold, the beam information of the PDSCH is determined by the TCI state indicated by the DCI.

[0034] Broadly speaking, the beam application time may refer to the time when the beam information indicated by the beam indication command becomes valid. From this point, the valid beam information is used for the transmission of the default channel or reference signal (for example, PDSCH, or various channels and reference signals used for the common beam).

[0035] 4. TCI Framework Currently, a new TCI framework called the unified TCI framework has been introduced. That is, the same beam used for multiple channels is referred to as a common beam. The beam indicated by the network using MAC CE or DCI can be used for multiple channel transmissions.

[0036] 5. Regarding CORESET The maximum bandwidth of each carrier is 400 MHz. However, considering the capabilities of the UE, the maximum bandwidth supported by the UE may be less than 400 MHz, and the UE may also operate with multiple small BWPs. Each of the bandwidth parts corresponds to one numerology, bandwidth, and frequency location. For a Frequency Division Duplexing (FDD) system or paired spectrum, the base station allocates up to four downlink BWPs and up to four uplink BWPs for the UE. For a TDD system or unpaired spectrum, the base station allocates 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. Also, each UE has one default DL BWP or default DL / UL BWP pair. The default DL BWP or default DL / UL BWP pair is generally a BWP with a relatively small bandwidth. When the UE has not received data for a long time or cannot detect the PDCCH, the UE switches from the current active BWP to the default DL BWP or default DL / UL BWP pair by means of a timer to achieve the effect of power saving. The switching of the active BWP is realized by RRC, DCI, or a timer. For example, when the UE is instructed to switch to the second CORESET by DCI in the first CORESET, the second CORESET becomes the active BWP when the UE switches to it. The maximum number of CORESETs in each BWP of each cell is three.

[0037] The CORESET identified by 0 (i.e., CORESET#0) is arranged by the Physical Broadcast Channel (PBCH) and is used for the UE to receive system information. In the case of the broadcast PDCCH, which common search space corresponding to which SSB is received is determined by the UE. In the case of the single-cast PDSCH, it is scheduled by the DCI associated with CORESET#0.

[0038] For example, according to how the SSB determines the search space #0 (i.e., the Type0-PDCCH common search space), if the UE determines that the Type0-PDCCH common search space exists in the CORESET, based on the 4 most significant bits of the importance of PDCCH-Config SIB1, it determines the number of consecutive resource blocks (RBs) and the number of consecutive symbols of the CORESET where the Type0-PDCCH common search space exists, and based on the 4 least significant bits of the importance of PDCCH-Config SIB1, it determines the monitoring occasions of the PDCCH.

[0039] In the protocol, the offset is defined based on the subcarrier spacing of the CORESET, i.e., from the minimum RB index of the CORESET including the Type0-PDCCH common search space to the minimum RB index of the common RBs overlapping with the first RB of the SSB.

[0040] In the case of multiplexing pattern 1 of SSB and CORESET, the UE monitors the PDCCH in the Type0-PDCCH common search space in two adjacent slots, and sets the starting slot as n0. The UE determines parameters such as the index of slot n0 based on the SSB index. In the case of multiplexing patterns 2 and 3 of SSB and CORESET, the UE monitors the PDCCH in the Type0-PDCCH common search space in one slot, and the period of the Type0-PDCCH common search space is the same as the period of the SSB. The UE determines parameters such as the slot index based on the SSB index.

[0041] Next, with reference to the drawings, a method for determining beam information provided by the embodiments of the present application will be described in detail based on several embodiments and their application scenarios.

[0042] The embodiments of the present application provide a method for determining beam information. FIG. 2 is a flowchart showing the method for determining beam information provided by the embodiments of the present application. As shown in FIG. 2, the method for determining beam information provided by the embodiments of the present application may include the following steps 201 and 202.

[0043] In step 201, when the first period and the second period overlap, the target device determines the target beam information.

[0044] In the embodiments of the present application, the target beam information is the beam information within the overlapping period of the first period and the second period. The first period is the period before the application time of the first beam information, the second period is the period before the application time of the second beam information, the first beam information is the beam information of the first channel / first reference signal, the second beam information is the beam information of the second channel / second reference signal, and the first beam information is the common beam information.

[0045] In the embodiments of the present application, the target device is a UE or a network-side device.

[0046] It should be noted that the overlapping of the first period and the second period may be understood as the complete overlapping of the first period and the second period, or the partial overlapping of the first period and the second period.

[0047] Optionally, in the embodiments of the present application, the first period is a period from time point T1 to time point T2, and the second period is a period from time point T3 to time point T4. There are cases where time point T1 is the same as time point T3 and time point T2 is the same as time point T4, that is, when the first period and the second period completely overlap, and cases where time point T1 is earlier than time point T3 (and time point T2 is earlier or later than time point T4) or time point T3 is earlier than time point T1 (and time point T4 is earlier or later than time point T2), that is, when the first period and the second period partially overlap.

[0048] It should be noted that the application time point of the first beam information may be understood as the time point when the first beam information becomes effective. That is, when the first beam information becomes effective, the target device transmits the first channel / first reference signal according to the first beam information. The application time point of the second beam information may be understood as the time point when the second beam information becomes effective. That is, when the second beam information becomes effective, the target device transmits the second channel / second reference signal according to the second beam information.

[0049] The fact that the first period is a period before the application time point of the first beam information may be understood as a period from a certain time point (that is, the instruction time point of the first beam information, for example, it may also be understood as the time point when the transmission of the first channel / first reference signal according to the first beam information is instructed by the first command) to the application time point of the first beam information. The fact that the second period is a period before the application time point of the second beam information may be understood as a period from a certain time point (that is, the instruction time point of the second beam information, for example, it may also be understood as the time point when the transmission of the second channel / second reference signal according to the second beam information is instructed by the second command) to the application time point of the second beam information.

[0050] Optionally, in the embodiments of the present application, the beam information may include at least one of beam identification information, spatial relation information, spatial domain transmission filter information, spatial domain reception filter information, spatial filter information, transmission configuration indication (TCI) state information, quasi co-location (QCL) information, etc.

[0051] The downlink beam information may be indicated by TCI state information or QCL information. The uplink beam information may be indicated by TCI state information or spatial relation information.

[0052] In the embodiments of the present application, the first beam information is different from the second beam information.

[0053] Optionally, in the embodiments of the present application, the first beam information is enabled / updated / indicated by the network-side device through a first command.

[0054] Optionally, in the embodiments of the present application, the first period is a period from the first time point to the beam application time of the first beam information, a period from the first time point to the feedback time point of the ACK information corresponding to the first command, a period from the first time point to the second time point which is the first default time length after the feedback time point of the ACK information corresponding to the first command, a period from the first time point to the feedback time point of the hybrid automatic repeat request (HARQ) of the physical downlink shared channel (PDSCH) scheduled by the first command, a period from the first time point to a time point which is the second default time length after the feedback time point of the HARQ of the PDSCH scheduled by the first command, and is any one of them.

[0055] The first time point is the time point when the UE receives the first command or the time point when the network side device transmits the first command.

[0056] Optionally, in the embodiments of the present application, the common beam information is for determining beam information of a UE-specific channel, for example, common QCL information of UE-dedicated PDCCH / PDSCH, and common uplink spatial region filter information of PUSCH and all / part of dedicated PUCCH resources based on dynamic grant / static or semi-static configured grant.

[0057] Optionally, in the embodiments of the present application, the common beam information is determined by a unified TCI state or an independent TCI state in the target command, and the target command (for example, the first command or the second command) is for activating / updating / instructing the first beam information or the second beam information.

[0058] Optionally, in the embodiments of the present application, the common beam information may further be used for a specific CORESET and channels associated with the CORESET.

[0059] Optionally, in the embodiments of the present application, the channels associated with the CORESET may include at least one of PDCCH in the CORESET, PDSCH / PUSCH scheduled by the PDCCH in the CORESET, and PUCCH of the channel where HARQ information is located.

[0060] Optionally, in the embodiments of the present application, the specific CORESET and the channels associated with the CORESET may use the TCI state indicated by the MAC CE.

[0061] Optionally, in the embodiments of the present application, the second beam information is any one of common beam information, beam information of a specific CORESET, and beam information indicated by DCI in a specific CORESET.

[0062] Optionally, in the embodiments of the present application, the specific CORESET (for example, a non-UE-specific CORESET) is a CORESET whose identifier or index is 0 (that is, CORESET#0).

[0063] Optionally, in the embodiments of the present application, the second beam information is enabled / updated / indicated by a network-side device by a second command.

[0064] When the second beam information is beam information indicated by DCI in a specific CORESET, the second command is DCI carried on PDCCH in the specific CORESET.

[0065] Optionally, in the embodiments of the present application, the second period is the period from the third time point to the beam application time of the second beam information, the period from the third time point to the feedback time point of ACK information corresponding to the second command, the period from the third time point to the fourth time point which is a time point after the third default time length from the feedback time point of ACK information corresponding to the second command, the period from the third time point to the feedback time point of HARQ of PDSCH scheduled by the second command, the period from the third time point to a time after the fourth default time length from the feedback time point of HARQ of PDSCH scheduled by the second command, any one of the periods from the transmission time point of DCI for scheduling a channel or a reference signal in a specific CORESET to the default time point.

[0066] The third time point is the time point when the UE receives the second command or the time point when the network-side device transmits the second command.

[0067] In an embodiment of the present application, when the PDSCH is scheduled by DCI in a specific CORESET from a network-side device, the period from the transmission time point of the DCI to the default time point may be determined as the second period. The default time point is the time corresponding to the default threshold, and the time interval between the DCI in the specific CORESET and the PDSCH scheduled by the DCI is smaller than the default threshold.

[0068] Exemplarily, when the PDSCH is scheduled by DCI in a specific CORESET and the time interval between the DCI and the PDSCH is smaller than the parameter (e.g., time Duration For QCL) configured by RRC signaling, the PDSCH may be transmitted by the default beam, and the time duration from the DCI to the QCL duration (e.g., 7 / 14 / 28 symbols) may be used as the second period.

[0069] In step 202, the target device transmits the target channel / target reference signal based on the target beam information.

[0070] In an embodiment of the present application, the target channel is the first channel and / or the second channel, and the target reference signal is the first reference signal and / or the second reference signal.

[0071] In addition, when the target device is a UE, in the case of uplink transmission, the target beam information becomes uplink beam information, and the target device transmits the target channel / target reference signal based on the target beam information. On the other hand, when the target device is a UE, in the case of downlink transmission, the target beam information becomes downlink beam information, and the target device receives the target channel / target reference signal based on the target beam information. Further, when the target device is a network-side device, in the case of uplink transmission, the target beam information becomes uplink beam information, and the target device receives the target channel / target reference signal based on the target beam information. On the other hand, when the target device is a network-side device, in the case of downlink transmission, the target beam information becomes downlink beam information, and the target device transmits the target channel / target reference signal based on the target beam information.

[0072] Optionally, in the embodiments of the present application, the target channel is non-UE-specific PDSCH, UE-specific PDSCH, non-UE-specific PDCCH, UE-specific PDCCH, PUCCH, PUSCH, PDCCH in a specific CORESET, PDSCH associated with a specific CORESET, PDSCH scheduled by DCI in a specific CORESET, PUCCH associated with a specific CORESET, PUCCH where the HARQ-ACK of the channel scheduled by DCI in a specific CORESET is located, PUSCH associated with a specific CORESET, including at least one of PUSCH scheduled by DCI in a specific CORESET.

[0073] Optionally, in the embodiments of the present application, the first channel may be any one of non-UE dedicated PDSCH, UE dedicated PDSCH, non-UE dedicated PDCCH, UE dedicated PDCCH, UE dedicated PUCCH, non-UE dedicated PUCCH, and PUSCH.

[0074] Optionally, in the embodiments of the present application, when the second beam information is common beam information, the second channel may be any one of non-UE dedicated PDSCH, UE dedicated PDSCH, non-UE dedicated PDCCH, UE dedicated PDCCH, non-UE dedicated PUCCH, UE dedicated PUCCH, and PUSCH.

[0075] Optionally, in the embodiments of the present application, when the second beam information is the beam information of a specific CORESET, the second channel may be any one of PUCCH, PUSCH, PDCCH in the specific CORESET, PDSCH scheduled by the PDCCH in the specific CORESET, PUCCH where the HARQ-ACK of the PDSCH scheduled by the PDCCH in the specific CORESET is located, and PUSCH scheduled by the PDCCH in the specific CORESET.

[0076] Optionally, in the embodiments of the present application, when the second beam information is the beam information indicated by DCI in a specific CORESET, the second channel may be any one of PUCCH, PUSCH, PDSCH scheduled by DCI in the specific CORESET, PUCCH where the HARQ-ACK of the channel scheduled by DCI in the specific CORESET is located, and PUSCH scheduled by DCI in the specific CORESET.

[0077] Optionally, in the implementation means of the embodiments of the present application, when the second beam information is common beam information, the target beam information is default common beam information, and beam information one before the first beam information, and The beam information one before the second beam information, and Either one of the beam information one before the first beam information and the beam information one before the second beam information.

[0078] Optionally, in another implementation means of the embodiment of the present application, when the second beam information is the beam information of a specific CORESET or the beam information indicated by DCI in a specific CORESET, the target beam information is The common beam information one before the common beam information indicated by the first command, The common beam information currently in use (the UE or the network-side device is currently using it), The beam information one before the second beam information indicated by the second command, The second beam information currently in use, The beam information of a specific CORESET, Among the search spaces associated with a specific CORESET, the beam information of the search space where the DCI scheduling the second channel / second reference signal is located, The beam information indicated at the time of scheduling the most recent second channel / second reference signal by DCI in a specific CORESET, The third beam information, which is either one of the common beam information one before the common beam information indicated by the first command and the common beam information currently in use, and the fourth beam information, which is either one of the beam information one before the second beam information indicated by the second command, the second beam information currently in use, the beam information of a specific CORESET, the beam information of the search space where the DCI scheduling the second channel / second reference signal is located among the search spaces associated with a specific CORESET, and the beam information indicated at the time of scheduling the most recent second channel / second reference signal by DCI in a specific CORESET. The beam information with the smallest interval between the usage time and the transmission time of the target channel / target reference signal. In the active BWP of the cell where the target channel / target reference signal is located, the beam information of the CORESET having the minimum identifier in the most recent slot monitored by the UE, In the active BWP of the cell where the target channel / target reference signal is located, the beam information of the CORESET having the minimum identifier among the CORESETs monitored by the UE, In the reference component carrier (Component Carrier, CC) or reference BWP, the beam information of the CORESET having the minimum identifier in the most recent slot monitored by the UE, In the reference CC or reference BWP, the beam information of the CORESET having the minimum identifier among the CORESETs monitored by the UE, In the active BWP of the cell where the target channel / target reference signal is located, the effective beam information corresponding to the minimum code point among the effective beam information for the target channel / target reference signal, In the reference CC or reference BWP, any one of the effective beam information corresponding to the minimum code point among the effective beam information for the target channel / target reference signal.

[0079] It should be noted that the usage time described in the embodiments of the present application is the usage time of a certain beam information, that is, the time for transmitting the channel / reference signal by a certain beam information. For example, the beam information with the smallest interval between the usage time and the transmission time of the target channel / target reference signal is the beam information that was used most recently or nearest to transmit the channel / reference signal before the transmission time of the target channel / target reference signal.

[0080] Optionally, in the embodiments of the present application, the reference CC is The CC among one CC group corresponding to the first beam information, The CC among one CC group corresponding to the second beam information, Any one of the CCs among the CCs where a specific CORESET is arranged.

[0081] Optionally, in the embodiments of the present application, the reference BWP is one of the BWPs in one BWP group corresponding to the first beam information, one of the BWPs in one BWP group corresponding to the second beam information, or one of the BWPs in which a specific CORESET is located.

[0082] Optionally, in the embodiments of the present application, the CORESET monitored by the UE is a UE-specific CORESET monitored by the UE, or the CORESET monitored by the UE is a non-UE-specific CORESET monitored by the UE.

[0083] Optionally, in the embodiments of the present application, the CORESET having the minimum identifier and the specific CORESET correspond to the same CORESET pool index.

[0084] Optionally, in the embodiments of the present application, the effective beam information for the target channel / target reference signal and the specific CORESET correspond to the same CORESET pool index.

[0085] Optionally, in the embodiments of the present application, the CORESET having the minimum identifier and the target channel / target reference signal correspond to the same CORESET pool index.

[0086] Optionally, in the embodiments of the present application, the effective beam information corresponding to the minimum code point includes the beam information corresponding to the minimum TCI code point among the TCI code points corresponding to a plurality of different beam information in the effective beam information of the target channel / target reference signal.

[0087] Optionally, in the embodiments of the present application, the first period is the period from time point T1 to time point T2, and the second period is the period from time point T3 to time point T4.

[0088] When T1 < T3, during the period from time point T1 to time point T3, the beam information of the target channel / target reference signal is any one of the default common beam information, the beam information one before the first beam information, the common beam information one before the common beam information indicated by the first command, and the currently used common beam information.

[0089] Note that when T1 < T3, the first beam information indicated by the first command has not been activated yet, and the second command has not been transmitted yet.

[0090] When T3 < T1, during the period from time point T3 to time point T1, the beam information of the target channel / target reference signal is Any one of the default common beam information, the beam information one before the second beam information, the beam information one before the second beam information indicated by the second command, the currently used second beam information, the beam information of a specific CORESET, the beam information of the search space where the DCI scheduling the second channel / second reference signal is located among the search spaces associated with the specific CORESET, the beam information indicated at the time of the most recent scheduling of the second channel / second reference signal by DCI in the specific CORESET, the beam information of the CORESET having the minimum identifier in the most recent slot in which the CORESET is monitored by the UE in the active BWP of the cell where the target channel / target reference signal is located, the beam information of the CORESET having the minimum identifier among the CORESETs monitored by the UE in the active BWP of the cell where the target channel / target reference signal is located, the beam information of the CORESET having the minimum identifier in the most recent slot in which the CORESET is monitored by the UE in the reference component carrier CC or reference BWP, the beam information of the CORESET having the minimum identifier among the CORESETs monitored by the UE in the reference CC or reference BWP, the effective beam information corresponding to the minimum code point among the effective beam information for the target channel / target reference signal in the active BWP of the cell where the target channel / target reference signal is located, the effective beam information corresponding to the minimum code point among the effective beam information for the target channel / target reference signal in the reference CC or reference BWP.

[0091] Note that when T3 < T1, the second beam information indicated by the second command has not been activated yet, and the first command has not been transmitted yet.

[0092] Optionally, in the embodiments of the present application, when T2 < T4, during the period from time point T2 to time point T4, the beam information of the target channel / target reference signal is the first beam information.

[0093] In addition, when T2 < T4, in the period from the time point T2 to the time point T4, since the first beam information indicated by the first command has already been activated and the second beam information indicated by the second command has not yet been activated, in this period, the target channel / target reference signal can be transmitted by the first beam information.

[0094] When T4 < T2, in the period from the time point T4 to the time point T2, the beam information of the target channel / target reference signal is the second beam information.

[0095] In addition, when T4 < T2, in the period from the time point T4 to the time point T2, since the first beam information indicated by the first command has not yet been activated and the second beam information indicated by the second command has already been activated, in this period, the target channel / target reference signal can be transmitted by the second beam information.

[0096] Optionally, in the embodiments of the present application, when T2 < T4, after the time point T4, the beam information of the first channel / first reference signal is the first beam information or the second beam information, and the beam information of the second channel / second reference signal is the first beam information or the second beam information.

[0097] In addition, when T2 < T4, after the time point T4, since both the first beam information indicated by the first command and the second beam information indicated by the second command have already been activated, after the time point T4, the first channel / first reference signal may be transmitted by the beam information indicated by the first command or the second command, or the second channel / second reference signal may be transmitted by the beam information indicated by the first command or the second command.

[0098] When T4 < T2, after the time point T2, the beam information of the first channel / first reference signal is the first beam information or the second beam information, and the beam information of the second channel / second reference signal is the first beam information or the second beam information.

[0099] In addition, when T4 < T2, after the time point T2, since both the first beam information indicated by the first command and the second beam information indicated by the second command have already been activated, after the time point T2, the first channel / first reference signal may be transmitted by the beam information indicated by the first command or the second command, or the second channel / second reference signal may be transmitted by the beam information indicated by the first command or the second command.

[0100] Optionally, in the embodiments of the present application, when the second beam information is common beam information or beam information of a specific CORESET, and both the HARQ-ACK of the first command and the HARQ-ACK of the second command are transmitted on the first uplink channel, the beam information of the first uplink channel is the common beam information one before the common beam information indicated by the first command, the currently used common beam information, the beam information one before the second beam information indicated by the second command, the currently used second beam information, among the common beam information one before the common beam information indicated by the first command and the beam information one before the second beam information indicated by the second command, the beam information with the smallest interval between the usage time and the transmission time of the first uplink channel, among the currently used common beam information and the currently used second beam information, the beam information with the smallest interval between the usage time and the transmission time of the first uplink channel, any one of the beam information indicated by the network-side device for the first uplink channel.

[0101] Optionally, in the embodiments of the present application, the second beam information is the beam information indicated by DCI in a specific CORESET. When both the HARQ-ACK of the first command and the target HARQ-ACK are transmitted on the first uplink channel, the beam information of the first uplink channel is The common beam information one before the common beam information indicated by the first command, The common beam information currently in use, The beam information of a specific CORESET, The beam information of the search space where the DCI that schedules the second channel / second reference signal is located among the search spaces associated with a specific CORESET, The beam information indicated at the time of scheduling the most recent second channel / second reference signal by DCI in a specific CORESET, The beam information indicated at the time of scheduling the second channel / second reference signal by DCI in a specific CORESET, Among the fifth beam information, which is either the common beam information one before the common beam information indicated by the first command or the common beam information currently in use, and the beam information of a specific CORESET, the beam information of the search space where the DCI that schedules the second channel / second reference signal is located among the search spaces associated with a specific CORESET, the beam information indicated at the time of scheduling the most recent second channel / second reference signal by DCI in a specific CORESET, and the beam information indicated at the time of scheduling the second channel / second reference signal by DCI in a specific CORESET, the beam information with the smallest interval between the usage time and the transmission time of the first uplink channel, The beam information indicated by the network-side device for the first uplink channel, When the first condition is satisfied, any one of the default beam information corresponding to the target identifier. The first condition is that the first uplink channel and the specific CORESET correspond to different TRP identifiers (for example, CORESET pool index), or the uplink channel and the specific CORESET correspond to different physical cell identifiers (Physical Cell Identity, PCI). The target identifier is any one of the TRP identifier corresponding to the first uplink channel and the PCI corresponding to the first uplink channel.

[0102] The target HARQ-ACK is the HARQ-ACK of the DCI or the HARQ-ACK of a channel or reference signal scheduled by the DCI.

[0103] Optionally, in the embodiments of the present application, the beam information of the first uplink channel and a specific CORESET correspond to the same TRP identifier or different TRP identifiers.

[0104] Optionally, in the embodiments of the present application, the beam information of the first uplink channel and a specific CORESET correspond to the same PCI or different PCIs.

[0105] Note that the fact that both the HARQ-ACK of the first command and the HARQ-ACK of the second command are transmitted on the first uplink channel, and the fact that both the HARQ-ACK of the first command and the target HARQ-ACK are transmitted on the first uplink channel usually means that the HARQ-ACKs of multiple commands are multiplexed and transmitted on one PUCCH channel.

[0106] Optionally, in the embodiments of the present application, when the transmission times of the first uplink channel and the second uplink channel overlap, if the HARQ-ACK information on the first uplink channel and the information on the second uplink channel are multiplexed on the third uplink channel, the beam information of the third uplink channel is the beam information of the third uplink channel, the beam information of the first uplink channel, the beam information of the second uplink channel, any one of them.

[0107] Optionally, in the embodiments of the present application, the third uplink channel may be any one of the first uplink channel, the second uplink channel, and an uplink channel different from both the first uplink channel and the second uplink channel.

[0108] For example, if the first uplink channel is a PUCCH capable of carrying a plurality of HARQ-ACKs, and the second uplink channel is a PUSCH, when the transmission times of the PUCCH and the PUSCH overlap, the information in the PUCCH may be multiplexed and transmitted by the PUSCH. In this case, the PUSCH becomes the third channel. Also, the entire information in the PUCCH and the PUSCH may be multiplexed by another PUSCH. In this case, the other PUSCH becomes the third channel.

[0109] Embodiments of the present application provide a method for determining beam information. When a first period and a second period overlap, a target device may determine beam information within the overlapping period and transmit a channel / reference signal based on the beam information. The first period is a period before the application time of the first beam information, and the second period is a period before the application time of the second beam information. In this technical means, when a time overlap occurs before the first beam information and the second beam information become effective, that is, when a time overlap occurs before different beam information indicated by a network-side device becomes effective, the target device can determine the beam information within the overlapping period and transmit the channel / reference signal by the beam information within the overlapping period, thereby ensuring accurate transmission of the channel / reference signal between the UE and the network-side device.

[0110] It should be noted that the method for determining beam information provided by the embodiments of the present application may be an execution entity that is a target device, or a beam information determination device, or a control module for executing the method for determining beam information in the beam information determination device. In the embodiments of the present application, taking the case where the method for determining beam information is executed by a target device as an example, the method for determining beam information provided by the embodiments of the present application will be described.

[0111] FIG. 3 shows a possible structural schematic diagram of a beam information determination device according to an embodiment of the present application. As shown in FIG. 3, the beam information determination device 30 includes a determination module 31 and a transmission module 32.

[0112] The determination module 31 is for determining target beam information when the first period and the second period overlap. The target beam information is beam information within the overlapping period of the first period and the second period. The first period is a period before the application time of the first beam information, the second period is a period before the application time of the second beam information, the first beam information is beam information of the first channel / first reference signal, the second beam information is beam information of the second channel / second reference signal, and the first beam information is common beam information. The transmission module 32 is for transmitting the target channel / target reference signal based on the target beam information determined by the determination module 31. The target channel is the first channel and / or the second channel, and the target reference signal is the first reference signal and / or the second reference signal.

[0113] The embodiments of the present application provide a device for determining beam information. When time overlap occurs before the first beam information and the second beam information become effective, that is, when time overlap occurs before different beam information instructed by the network-side device becomes effective, the device for determining beam information determines the beam information within the overlapping period, and can transmit the channel / reference signal according to the beam information within the overlapping period, ensuring the accurate transmission of the channel / reference signal between the UE and the network-side device.

[0114] In a possible implementation manner, the second beam information is any one of common beam information, beam information of a specific CORESET, and beam information indicated by DCI in a specific CORESET.

[0115] In a possible implementation manner, the first beam information is enabled / updated / instructed from the network-side device by a first command, and the first period is the period from the first time point to the beam application time of the first beam information, the period from the first time point to the feedback time point of the ACK information corresponding to the first command, the period from the first time point to the second time point, which is a time point after the feedback time point of the ACK information corresponding to the first command by a first default time length. The period from the first time point to the HARQ feedback time point of the PDSCH scheduled by the first command, Either one of the period from the first time point to the time point after the second default time length from the HARQ feedback time point of the PDSCH scheduled by the first command, The first time point is the reception time point by the UE of the first command or the transmission time point by the network side device of the first command.

[0116] In a possible implementation means, the second beam information is activated / updated / instructed by the network side device by the second command, and the second period is The period from the third time point to the beam application time of the second beam information, The period from the third time point to the feedback time point of the ACK information corresponding to the second command, The period from the third time point to the fourth time point which is the time point after the third default time length from the feedback time point of the ACK information corresponding to the second command, The period from the third time point to the HARQ feedback time point of the PDSCH scheduled by the second command, The period from the third time point to the time point after the fourth default time length from the HARQ feedback time point of the PDSCH scheduled by the second command, Either one of the period from the transmission time point of the DCI for scheduling a channel or a reference signal to the default time point in a specific CORESET, The third time point is the reception time point by the UE of the second command or the transmission time point by the network side device of the second command.

[0117] In a possible implementation, the common beam information is for determining beam information of a UE-specific channel, and / or the common beam information is determined by a unified TCI state or an independent TCI state in a target command for activating / updating / instructing the first beam information or the second beam information, and / or the common beam information is used for a specific CORESET and a channel associated with the CORESET.

[0118] In a possible implementation, the second beam information is common beam information, and the target beam information is default common beam information, beam information one before the first beam information, beam information one before the second beam information, any one of beam information one before the first beam information and beam information one before the second beam information.

[0119] In a possible implementation, the second beam information is beam information of a specific CORESET or beam information indicated by DCI in a specific CORESET, and the target beam information is common beam information one before the common beam information indicated by a first command, currently used common beam information, beam information one before the second beam information indicated by a second command, currently used second beam information, beam information of a specific CORESET, beam information of a search space where DCI for scheduling a second channel / a second reference signal is located among search spaces associated with a specific CORESET, beam information indicated at the time of scheduling the most recent second channel / a second reference signal by DCI in a specific CORESET, Among the common beam information one before the common beam information indicated by the first command, the third beam information which is any one of the currently used common beam information, the beam information one before the second beam information indicated by the second command, the currently used second beam information, the beam information of a specific CORESET, the beam information of the search space where the DCI scheduling the second channel / second reference signal is located among the search spaces associated with the specific CORESET, and the fourth beam information which is any one of the beam information indicated at the time of the most recent scheduling of the second channel / second reference signal by DCI in the specific CORESET, the beam information with the smallest interval between the usage time and the transmission time of the target channel / target reference signal, In the active BWP of the cell where the target channel / target reference signal is located, the beam information of the CORESET with the smallest identifier in the most recent slot in which the CORESET is monitored by the UE, In the active BWP of the cell where the target channel / target reference signal is located, the beam information of the CORESET with the smallest identifier among the CORESETs monitored by the UE, In the reference CC or reference BWP, the beam information of the CORESET with the smallest identifier in the most recent slot in which the CORESET is monitored by the UE, In the reference CC or reference BWP, the beam information of the CORESET with the smallest identifier among the CORESETs monitored by the UE, In the active BWP of the cell where the target channel / target reference signal is located, the effective beam information corresponding to the smallest code point among the effective beam information for the target channel / target reference signal, In the reference CC or reference BWP, any one of the effective beam information corresponding to the smallest code point among the effective beam information for the target channel / target reference signal.

[0120] In a possible implementation means, the reference CC is The CC among one CC group corresponding to the first beam information, The CC among one CC group corresponding to the second beam information, It is any one of the CCs among the CCs where a specific CORESET is located.

[0121] In a possible implementation, the reference BWP is One BWP among one BWP group corresponding to the first beam information, One BWP among one BWP group corresponding to the second beam information, It is any one of the BWPs among the BWPs where a specific CORESET is located.

[0122] In a possible implementation, the CORESET monitored by the UE is a UE-specific CORESET monitored by the UE, or the CORESET monitored by the UE is a non-UE-specific CORESET monitored by the UE.

[0123] In a possible implementation, the CORESET with the minimum identifier and the specific CORESET correspond to the same CORESET pool index, and / or the effective beam information for the target channel / target reference signal and the specific CORESET correspond to the same CORESET pool index, and / or the CORESET with the minimum identifier and the target channel / target reference signal correspond to the same CORESET pool index.

[0124] In a possible implementation, the effective beam information corresponding to the minimum code point includes the beam information corresponding to the minimum TCI code point among the TCI code points corresponding to a plurality of different beam information among the effective beam information of the target channel / target reference signal.

[0125] In a possible implementation, the first period is the period from time point T1 to time point T2, and the second period is the period from time point T3 to time point T4. When T1 < T3, during the period from time point T1 to time point T3, the beam information of the target channel / target reference signal is any one of the default common beam information, the beam information one before the first beam information, the common beam information one before the common beam information indicated by the first command, and the currently used common beam information. When T3 < T1, during the period from time point T3 to time point T1, the beam information of the target channel / target reference signal is the default common beam information, the beam information one before the second beam information, the beam information one before the second beam information indicated by the second command, the currently used second beam information, the beam information of a specific CORESET, the beam information of the search space where the DCI scheduling the second channel / second reference signal is located among the search spaces associated with the specific CORESET, the beam information indicated at the time of the most recent scheduling of the second channel / second reference signal by DCI in the specific CORESET, the beam information of the CORESET having the minimum identifier in the most recent slot in which the CORESET is monitored by the UE in the active BWP of the cell where the target channel / target reference signal is located, the beam information of the CORESET having the minimum identifier among the CORESETs monitored by the UE in the active BWP of the cell where the target channel / target reference signal is located, the beam information of the CORESET having the minimum identifier in the most recent slot in which the CORESET is monitored by the UE in the reference component carrier CC or reference BWP, the beam information of the CORESET having the minimum identifier among the CORESETs monitored by the UE in the reference CC or reference BWP, the effective beam information corresponding to the minimum code point among the effective beam information for the target channel / target reference signal in the active BWP of the cell where the target channel / target reference signal is located, and the effective beam information corresponding to the minimum code point among the effective beam information for the target channel / target reference signal in the reference CC or reference BWP, and is any one of them.

[0126] In a possible implementation, the first period is the period from time point T1 to time point T2, and the second period is the period from time point T3 to time point T4. When T2 < T4, in the period from time point T2 to time point T4, the beam information of the target channel / target reference signal is the first beam information, When T4 < T2, in the period from time point T4 to time point T2, the beam information of the target channel / target reference signal is the second beam information.

[0127] In a possible implementation, when T2 < T4, after time point T4, the beam information of the first channel / first reference signal is the first beam information or the second beam information, and the beam information of the second channel / second reference signal is the first beam information or the second beam information. When T4 < T2, after time point T2, the beam information of the first channel / first reference signal is the first beam information or the second beam information, and the beam information of the second channel / second reference signal is the first beam information or the second beam information.

[0128] In a possible implementation, the second beam information is common beam information or beam information of a specific CORESET. When both the HARQ-ACK of the first command and the HARQ-ACK of the second command are transmitted on the first uplink channel, the beam information of the first uplink channel is the common beam information one before the common beam information indicated by the first command, the currently used common beam information, the beam information one before the second beam information indicated by the second command, the currently used second beam information, Among the common beam information one before the common beam information indicated by the first command and the beam information one before the second beam information indicated by the second command, the beam information with the smallest interval between the usage time and the transmission time of the first uplink channel, Among the currently used common beam information and the currently used second beam information, the beam information with the smallest interval between the usage time and the transmission time of the first uplink channel, any one of the beam information indicated by the network-side device for the first uplink channel.

[0129] In a possible implementation, the second beam information is beam information indicated by DCI in a specific CORESET. When both the HARQ-ACK of the first command and the target HARQ-ACK are transmitted on the first uplink channel, the beam information of the first uplink channel is the common beam information one before the common beam information indicated by the first command, the currently used common beam information, the beam information of a specific CORESET, the beam information of the search space where the DCI scheduling the second channel / second reference signal is located among the search spaces associated with a specific CORESET, the beam information indicated at the time of the most recent scheduling of the second channel / second reference signal by DCI in a specific CORESET, the beam information indicated at the time of scheduling the second channel / second reference signal by DCI in a specific CORESET, Among the fifth beam information, which is any one of the common beam information one before the common beam information indicated by the first command and the currently used common beam information, the beam information of a specific CORESET, the beam information of the search space where the DCI scheduling the second channel / second reference signal is located among the search spaces associated with a specific CORESET, the beam information indicated at the time of the most recent scheduling of the second channel / second reference signal by DCI in a specific CORESET, and the beam information indicated at the time of scheduling the second channel / second reference signal by DCI in a specific CORESET, the beam information with the smallest interval between the usage time and the transmission time of the first uplink channel, the beam information indicated by the network-side device for the first uplink channel, When the first condition is satisfied, it is any one of the default beam information corresponding to the target identifier. The first condition is that the first uplink channel and a specific CORESET correspond to different TRP identifiers, or the uplink channel and a specific CORESET correspond to different PCIs. The target identifier is any one of the TRP identifier corresponding to the first uplink channel and the PCI corresponding to the first uplink channel. The target HARQ-ACK is the HARQ-ACK of the DCI or the HARQ-ACK of the channel or reference signal scheduled by the DCI.

[0130] In a possible implementation manner, the beam information of the first uplink channel and a specific CORESET correspond to the same TRP identifier or different TRP identifiers. The beam information of the first uplink channel and a specific CORESET correspond to the same PCI or different PCIs.

[0131] In a possible implementation manner, when the transmission times of the first uplink channel and the second uplink channel overlap, if the HARQ-ACK information in the first uplink channel and the information in the second uplink channel are multiplexed in the third uplink channel, the beam information of the third uplink channel is the beam information of the third uplink channel, the beam information of the first uplink channel, any one of the beam information of the second uplink channel.

[0132] In a possible implementation manner, the target channel is non-UE-specific PDSCH, UE-specific PDSCH, non-UE-specific PDCCH, UE-specific PDCCH, PUCCH, PUSCH, PDCCH in a specific CORESET, PDSCH associated with a specific CORESET, PDSCH scheduled by DCI in a specific CORESET, PUCCH associated with a specific CORESET, PUCCH where the HARQ-ACK of the channel scheduled by DCI in a specific CORESET is located, PUSCH associated with a specific CORESET, including at least one of the PUSCH scheduled by DCI in a specific CORESET.

[0133] In a possible implementation, the specific CORESET is a CORESET whose identifier or index is 0.

[0134] The beam information determination device in the embodiments of the present application may be a device, a device having an operating system, or a target device (i.e., a UE or a network-side device), or may be a component, an integrated circuit, or a chip in the target device. The device or UE may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of UE 11 listed above. The non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a cash dispenser, or a kiosk, etc., but is not specifically limited in the embodiments of the present application.

[0135] The beam information determination device provided by the embodiments of the present application can realize each process realized by the embodiments of the above method and can achieve the same technical effect. Therefore, to avoid repetition, it will not be described repeatedly here.

[0136] Optionally, as shown in FIG. 4, an embodiment of the present application further provides a communication device 500 including a processor 501, a memory 502, and a program or command stored in the memory 502 and executable by the processor 501. For example, when the communication device 500 is a target device, when the program or command is executed by the processor 501, each process of the embodiment of the above method can be realized, and the same technical effect can be achieved.

[0137] An embodiment of the present application further provides a target device including a processor and a communication interface. The processor is for determining target beam information when a first period and a second period overlap, the target beam information being beam information within the overlapping period of the first period and the second period, the first period being a period before the application time of the first beam information, the second period being a period before the application time of the second beam information, the first beam information being beam information of a first channel / a first reference signal, the second beam information being beam information of a second channel / a second reference signal, and the first beam information being common beam information. The communication interface is for transmitting a target channel / a target reference signal based on the target beam information, the target channel being the first channel and / or the second channel, and the target reference signal being the first reference signal and / or the second reference signal. The embodiment of the target device corresponds to the embodiment of the method on the target device side, and each implementation process and implementation form of the embodiment of the method can be applied to the embodiment of the target device, and the same technical effect can be achieved.

[0138] Specifically, the target device is a UE, and FIG. 5 is a schematic structural diagram of the hardware for realizing the UE according to an embodiment of the present application.

[0139] The UE 100 includes at least some of the members such as a high-frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110, but is not limited thereto.

[0140] As will be understood by those skilled in the art, the UE 100 may further include a power source (e.g., a battery) for supplying power to each component. The power source is logically connected to the processor 110 by a power management system, thereby realizing functions such as charge and discharge management and power consumption management by the power management system. The UE structure shown in FIG. 5 is not intended to limit the UE, and may include more or fewer components than shown in the UE diagram, or a combination of some components, or different component arrangements, which will not be repeated here.

[0141] In the embodiments of the present application, the input unit 104 may include a graphics processing unit (GPU) 1041 that processes still image or video image data acquired by an image capture device (e.g., a camera) in a video capture mode or an image capture mode, and a microphone 1042. The display unit 106 may include a display panel 1061, and the display panel 1061 may be arranged as a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts, a touch detection device and a touch controller. The other input devices 1072 may include a physical keyboard, function buttons (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, an operation lever, but are not limited thereto, and will not be repeated here.

[0142] In the embodiments of the present application, when the high-frequency unit 101 receives downlink data from the network-side device, it transmits the data to the processor 110 for processing, and also transmits uplink data to the network-side device. Usually, the high-frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0143] Memory 109 may be used to store software programs or commands and various data. Memory 109 may mainly include an area for storing programs or commands that can store an operating system, applications or commands necessary for at least one function (such as a voice playback function, an image playback function, etc.), and an area for storing data. Also, Memory 109 may include a high-speed random access memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices may be mentioned.

[0144] Processor 110 may include one or more processing units. Optionally, an application processor that mainly processes an operating system, a user interface, applications or commands, etc., and a modem processor such as a baseband processor that mainly processes wireless communication can be integrated into Processor 110. Of course, the above modem processor does not have to be integrated into Processor 110.

[0145] The processor 110 is for determining target arrangement parameters, where the target arrangement parameters are used for transmitting synchronization resources in at least two carriers, the target arrangement parameters include at least one of target time information and target interval information, the target time information is for indicating a target time, the target interval information includes at least one of the interval of the target time and the interval of the synchronization resources, the target time includes at least the time for transmitting synchronization resources, and at least a part of the arrangement parameters of the synchronization resources in at least two carriers is the same.

[0146] The high-frequency unit 101 is for transmitting a target channel / target reference signal based on target beam information, where the target channel is the first channel and / or the second channel, and the target reference signal is the first reference signal and / or the second reference signal.

[0147] The embodiments of the present application provide a UE. When a time overlap occurs before the first beam information and the second beam information become effective, that is, when a time overlap occurs before different beam information indicated by the network-side device becomes effective, the UE can determine the beam information within the overlap period and transmit the channel / reference signal according to the beam information within the overlap period, thereby ensuring the accurate transmission of the channel / reference signal by the UE.

[0148] The UE provided by the embodiments of the present application can realize each process realized by the embodiments of the above method and achieve the same technical effects. Therefore, in order to avoid duplication, it will not be repeated here.

[0149] Specifically, the target device is a network-side device. As shown in FIG. 6, the network-side device 700 includes an antenna 71, a high-frequency device 72, and a baseband device 73. The antenna 71 and the high-frequency device 72 are connected. In the uplink direction, the high-frequency device 72 receives information via the antenna 71 and transmits the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes the information waiting to be transmitted and transmits it to the high-frequency device 72. The high-frequency device 72 transmits the received information via the antenna 71 after processing it.

[0150] The band processing device may be in the baseband device 73. The method executed by the network-side device in the above embodiment may also be realized by the baseband device 73. The baseband device 73 includes a processor 74 and a memory 75.

[0151] The baseband device 73 may include, for example, at least one baseband board provided with a plurality of chips. As shown in FIG. 6, one of the chips is, for example, a processor 74 connected to the memory 75 and configured to call a program in the memory 75 to execute the operations of the network-side device shown in the embodiments of the above method.

[0152] The baseband device 73 may further include a network interface 76 for communicating with the high-frequency device 72. The interface is, for example, a common public radio interface (abbreviated as CPRI).

[0153] When the first period and the second period overlap, the processor 74 is for determining target beam information, where the target beam information is beam information within the overlapping period of the first period and the second period, the first period is a period before the application time of the first beam information, the second period is a period before the application time of the second beam information, the first beam information is beam information of the first channel / first reference signal, the second beam information is beam information of the second channel / second reference signal, and the first beam information is common beam information.

[0154] The high-frequency device 72 is for transmitting a target channel / target reference signal based on the target beam information determined by the determination module, where the target channel is the first channel and / or the second channel, and the target reference signal is the first reference signal and / or the second reference signal.

[0155] Embodiments of the present application provide network-side devices. When a time overlap occurs before the first beam information and the second beam information become effective, that is, when a time overlap occurs before different beam information instructed by the network-side device becomes effective, the network-side device determines the beam information within the overlapping period and can transmit the channel / reference signal by this beam information within the overlapping period, thereby ensuring the accurate transmission of the channel / reference signal by the network-side device.

[0156] The network-side device provided by the embodiments of the present application realizes each process realized by the embodiments of the above method and can achieve the same technical effect. To avoid repetition, it will not be described repeatedly here.

[0157] Specifically, the network-side device of the embodiments of the present application further includes commands or programs stored in the memory 75 and executable by the processor 74. The processor 74 calls the commands or programs in the memory 75 to execute the methods executed by the above modules or units and can achieve the same technical effect. To avoid repetition, it will not be described repeatedly here.

[0158] Embodiments of this application further provide a readable storage medium storing a program or command. When the program or command is executed by a processor, each process of the embodiment of the method for determining the beam information can be realized, and the same technical effect can be achieved. To avoid repetition, it will not be described repeatedly here.

[0159] The processor is the processor in the UE or network-side device described in the embodiment. The readable storage medium includes computer-readable storage media such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0160] Embodiments of this application further provide a chip including a processor and a communication interface. The processor is for executing a program or command to realize each process of the embodiment of the method for determining the beam information, and the same technical effect can be achieved. To avoid repetition, it will not be described repeatedly here.

[0161] It should be noted that the chip described in the embodiments of this application is also referred to as a system-on-chip, a system chip, a chip system, or a SoC, etc.

[0162] In addition, in this specification, the term "comprising", "consisting of" or any other variation thereof is intended to include non-exclusive inclusion, such that a process, method, article or apparatus comprising a series 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. Unless otherwise specified, the elements limited by the phrase "comprising one..." do not exclude the further presence of the same other elements in the process, method, article or apparatus comprising the element. Also, 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 herein, and may further include performing functions substantially simultaneously or in the reverse order depending on the related functions. For example, the above methods may be performed in an order different from the order of description, and further, each step may be added, omitted, or combined. Also, the features described with reference to some examples may be combined with other examples.

[0163] From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above examples can be realized in the form of a combination of software and the necessary common hardware platform. Of course, it may also be realized by hardware, but in many cases the former is a more preferred embodiment. Based on such an understanding, the technical means of this application can be substantially or the part that contributes to the prior art can be implemented as a software product, and the computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) includes a plurality of commands for executing the methods described in each embodiment of this application.

[0164] As described above, the embodiments of this application have been described with reference to the drawings. However, this application is not limited to the above specific embodiments. The above specific embodiments are merely exemplary and not restrictive. Based on the suggestions of this application, many forms that those skilled in the art can obtain without departing from the spirit of this application and the protection scope of the claims all belong to the protection scope of this application.

[0165] [Cross - reference to related applications] This application claims the priority of a Chinese patent filed in China on August 2, 2021, with the application number 202110882533.7, and all of its contents are incorporated herein by reference.

Claims

1. When a first period and a second period overlap, a step of determining target beam information, wherein the target beam information is beam information within an overlapping period of the first period and the second period, the first period is a period before the application time of the first beam information, the second period is a period before the application time of the second beam information, the first beam information is beam information of a first channel / a first reference signal, the second beam information is beam information of a second channel / a second reference signal, and the first beam information is common beam information; A step of transmitting a target channel / a target reference signal based on the target beam information, wherein the target channel is the first channel and / or the second channel, and the target reference signal is the first reference signal and / or the second reference signal; comprising The target beam information is In an effective bandwidth part BWP of a cell where the target channel / the target reference signal is located, beam information of a CORESET having a minimum identifier in the most recent slot monitored by the UE; In a reference component carrier CC or a reference BWP, beam information of a CORESET having a minimum identifier in the most recent slot monitored by the UE, any one of which Method for determining beam information.

2. The second beam information is any one of common beam information, beam information of a specific control resource set CORESET, and beam information indicated by downlink control information DCI in a specific CORESET. The method for determining beam information according to claim 1.

3. The second beam information is activated from a network-side device by a second command, or the second beam information is indicated from the network-side device by the second command, The second period is A period from the transmission time of DCI for scheduling a channel or a reference signal in a specific CORESET to a default time. The method for determining beam information according to claim 1.

4. The common beam information is for determining beam information of a UE-dedicated channel. The method for determining beam information according to claim 1.

5. The common beam information is determined by the unified transmission setting indication TCI state or the independent TCI state in the target command for enabling the first beam information or the second beam information, or updating the first beam information or the second beam information, or instructing the first beam information or the second beam information. The method for determining beam information according to claim 1.

6. The common beam information is used for a specific CORESET and the channels associated with the CORESET. The method for determining beam information according to claim 1.

7. The first beam information is indicated by the network-side device by a first command. The first period is the period from the first time point to the second time point, and the second time point is the time point after a first default time length from the feedback time point of the ACK information corresponding to the first command. The first time point is the reception time point by the user equipment UE of the first command, or the transmission time point by the network-side device of the first command. The method for determining beam information according to claim 1.

8. The first period is the period from time point T1 to time point T2, and the second period is the period from time point T3 to time point T4. When T1 < T3, the beam information of the first target channel / the first target reference signal is any one of the default common beam information, the beam information one before the first beam information, the common beam information one before the common beam information indicated by the first command, and the currently used common beam information. The beam information of the first target channel / the first target reference signal is the beam information in the period from time point T1 to time point T3. When T3 < T1, the beam information of the second target channel / the second target reference signal is Any one of the default common beam information, the beam information one before the second beam information, the beam information one before the second beam information indicated by the second command, the currently used second beam information, the beam information of a specific CORESET, the beam information of the search space where the DCI scheduling the second channel / the second reference signal is located among the search spaces associated with the specific CORESET, the beam information indicated at the time of the most recent scheduling of the second channel / the second reference signal by DCI in a specific CORESET, the beam information of the CORESET having the minimum identifier in the most recent slot in which the CORESET is monitored by the UE in the active BWP of the cell where the target channel / the target reference signal is located, the beam information of the CORESET having the minimum identifier among the CORESETS monitored by the UE in the active BWP of the cell where the target channel / the target reference signal is located, the beam information of the CORESET having the minimum identifier in the most recent slot in which the CORESET is monitored by the UE in the reference component carrier CC or the reference BWP, the beam information of the CORESET having the minimum identifier among the CORESETS monitored by the UE in the reference CC or the reference BWP, the effective beam information corresponding to the minimum code point among the effective beam information for the target channel / the target reference signal in the active BWP of the cell where the target channel / the target reference signal is located, the effective beam information corresponding to the minimum code point among the effective beam information for the target channel / the target reference signal in the reference CC or the reference BWP, The method for determining beam information according to claim 1, wherein the beam information of the second target channel / the second target reference signal is beam information in the period from time point T3 to time point T1.

9. The first period is the period from time point T1 to time point T2, and the second period is the period from time point T3 to time point T4. When T2 < T4, the beam information of the third target channel / the third target reference signal is the first beam information, and the beam information of the third target channel / the third target reference signal is beam information in the period from time point T2 to time point T4. When T4 < T2, the beam information of the fourth target channel / fourth target reference signal is the second beam information, and the beam information of the fourth target channel / fourth target reference signal is the beam information during the period from the time point T4 to the time point T2. The method for determining beam information according to claim 1.

10. When T2 < T4, the beam information of the fifth target channel / fifth target reference signal is the first beam information or the second beam information, and the beam information of the fifth target channel / fifth target reference signal is the beam information during the period after the time point T4. When T4 < T2, the beam information of the sixth target channel / sixth target reference signal is the first beam information or the second beam information, and the beam information of the sixth target channel / sixth target reference signal is the beam information during the period after the time point T2. The method for determining beam information according to claim 9.

11. The second beam information is common beam information or beam information of a specific CORESET. When both the HARQ-ACK of the first command and the HARQ-ACK of the second command are transmitted on the first uplink channel, the beam information of the first uplink channel is The common beam information one before the first beam information indicated by the first command, The currently used common beam information, The beam information one before the second beam information indicated by the second command, The currently used second beam information, Among the common beam information one before the first beam information indicated by the first command and the beam information one before the second beam information indicated by the second command, the beam information with the smallest interval between the application time of the beam information and the transmission time of the first uplink channel, Among the currently used common beam information and the currently used second beam information, the beam information with the smallest interval between the application time of the beam information and the transmission time of the first uplink channel, Any one of the beam information indicated by the network-side device for the first uplink channel. The method for determining beam information according to claim 1.

12. The second beam information is the beam information indicated by DCI in a specific CORESET. When both the HARQ-ACK of the first command and the target HARQ-ACK are transmitted on the first uplink channel, the beam information of the first uplink channel is the common beam information one before the first beam information indicated by the first command, the common beam information currently in use, the beam information of a specific CORESET, the beam information of the search space where the DCI that schedules the second channel / the second reference signal is located among the search spaces associated with a specific CORESET, the beam information indicated at the time of the most recent scheduling of the second channel / the second reference signal by DCI in a specific CORESET, the beam information indicated at the time of scheduling of the second channel / the second reference signal by DCI in a specific CORESET, Of the fifth beam information, which is either the common beam information one before the first beam information indicated by the first command or the common beam information currently in use, and the beam information of a specific CORESET, the beam information of the search space where the DCI that schedules the second channel / the second reference signal is located among the search spaces associated with a specific CORESET, the beam information indicated at the time of the most recent scheduling of the second channel / the second reference signal by DCI in a specific CORESET, and the beam information indicated at the time of scheduling of the second channel / the second reference signal by DCI in a specific CORESET, the beam information with the smallest interval between the application time of the beam information and the transmission time of the first uplink channel, the beam information indicated by the network-side device for the first uplink channel, When the first condition is satisfied, it is any one of the default beam information corresponding to the target identifier, where the first condition is that the first uplink channel and a specific CORESET correspond to different transceiver point TRP identifiers, or the first uplink channel and a specific CORESET correspond to different physical cell identifiers PCI, and the target identifier is any one of the TRP identifier corresponding to the first uplink channel and the PCI corresponding to the first uplink channel, The target HARQ-ACK is the HARQ-ACK of DCI in the specific CORESET, or the HARQ-ACK of a channel or a reference signal scheduled by DCI in the specific CORESET. The method for determining beam information according to claim 1.

13. The specific CORESET is a CORESET whose identifier or index is 0. The method for determining beam information according to claim 2.

14. A communication device, comprising a processor, a memory, and a program or command stored in the memory and executable by the processor, wherein when the program or command is executed by the processor, the steps of the method for determining beam information according to any one of claims 1 to 13 are realized.

15. A readable storage medium storing a program or command that realizes the steps of the method for determining beam information according to any one of claims 1 to 13 when executed by a processor.

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