Method, device and terminal for determining beam switching delay

Abstract

The present application discloses a method, apparatus, and terminal for determining a beam switching delay, which belong to the technical field of communications. A method for determining a beam switching delay in an embodiment of the present application includes a step of a terminal receiving instruction information for indicating a target beam including a first beam and a second beam respectively associated with two different cells, and a step of determining a switching delay of the target beam according to a first predetermined rule when the terminal receives the instruction information.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to China Patent Application No. 202210135647.X filed in China on February 14, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of communications, and in particular to a method, apparatus and terminal for determining a beam switching delay. [Background technology]

[0003] When a terminal transmits and receives data through a target beam, the terminal must measure a reference signal related to the target beam to receive and / or transmit data normally through the target beam. In the prior art, when a network side device activates multiple transmission configuration indicator (TCI) states related to different cells, the terminal cannot simultaneously measure reference signals of multiple cells, so there is still no solution for how the terminal determines the switching delay of multiple target beams related to different cells, which affects the reliability of data transmission of the terminal. Summary of the Invention [Problem to be solved by the invention]

[0004] The embodiments of the present application provide a method, apparatus, and terminal for determining a beam switching delay that can solve the problem of low reliability of data transmission for a terminal when a network side device activates multiple TCI states associated with different cells. [Means for solving the problem]

[0005] In a first aspect, a method includes: receiving, by a terminal, indication information for indicating a target beam, the target beam including a first beam and a second beam, each of the first beam and the second beam being associated with two different cells; determining a switching delay of the target beam according to a first predetermined rule when the terminal receives the instruction information; The present invention provides a method for determining a beam switching delay, comprising:

[0006] In a second embodiment, a receiving module is used for receiving indication information for indicating a target beam, the target beam including a first beam and a second beam respectively associated with two different cells; a determining module, which is used for determining a switching delay of the target beam according to a first predetermined rule when receiving the instruction information; The present invention provides an apparatus for determining a beam switching delay, comprising:

[0007] In a third aspect, there is provided a terminal comprising a processor and a memory storing programs or commands executable by the processor, the programs or commands being executed by the processor to implement the steps of the method according to the first aspect.

[0008] In a fourth aspect, a terminal is provided that includes a processor and a communication interface, wherein the processor is used to determine a switching delay of the target beam in accordance with a first predetermined rule when the instruction information is received, and the communication interface is used to receive instruction information for indicating a target beam including a first beam and a second beam, each associated with two different cells.

[0009] In a fifth aspect, there is provided a communication system comprising a terminal usable for performing the steps of the method according to the first aspect, and a network side device.

[0010] In a sixth aspect, there is provided a readable storage medium storing a program or commands which, when executed by a processor, implements the steps of the method according to the first aspect.

[0011] In a seventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled together, the processor executing a program or command for implementing the method according to the first aspect.

[0012] In an eighth aspect, there is provided a computer program product stored on a storage medium, the computer program product being adapted to implement the steps of the method according to the first aspect when executed by at least one processor.

[0013] In an embodiment of the present application, a terminal receives indication information for indicating a target beam, the target beam including a first beam and a second beam respectively associated with two different cells, and when the terminal receives the indication information, the terminal determines a switching delay of the target beam according to a first predetermined rule. With the above method, when two beams are associated with different cells, the terminal can determine a switching delay of the target beam, and the reliability of data transmission can be ensured. [Brief description of the drawings]

[0014] [Figure 1] 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied. [Diagram 2] 1 is a flowchart of a method for determining a beam switching delay provided in an embodiment of the present application. [Figure 3a] FIG. 2 is a schematic diagram of a method for determining a beam switching delay provided in an embodiment of the present application. [Figure 3b] FIG. 2 is a schematic diagram of a method for determining a beam switching delay provided in an embodiment of the present application. [Figure 3c] FIG. 2 is a schematic diagram of a method for determining a beam switching delay provided in an embodiment of the present application. [Figure 3d] FIG. 2 is a schematic diagram of a method for determining a beam switching delay provided in an embodiment of the present application. [Figure 3e] FIG. 2 is a schematic diagram of a method for determining a beam switching delay provided in an embodiment of the present application. [Figure 3f] FIG. 2 is a schematic diagram of a method for determining a beam switching delay provided in an embodiment of the present application. [Figure 3g] FIG. 2 is a schematic diagram of a method for determining a beam switching delay provided in an embodiment of the present application. [Figure 3h] FIG. 2 is a schematic diagram of a method for determining a beam switching delay provided in an embodiment of the present application. [Figure 4] FIG. 2 is a block diagram of a beam switching delay determining device provided in an embodiment of the present application. [Diagram 5] FIG. 2 is a configuration diagram of a communication device provided in an embodiment of the present application. [Figure 6] FIG. 2 is a configuration diagram of a terminal provided in an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, the technical solutions in the embodiments of the present application will be clearly described with reference to the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the protection scope of the present application.

[0016] The terms "first", "second", etc. in the specification and claims of this application are not intended to describe a particular order or sequence, but are intended to distinguish between similar objects. It should be understood that the terms used in this manner may be substituted for each other where appropriate, so that the embodiments of this application may be practiced in other sequences than those shown or described herein, and that the objects distinguished by "first" and "second" generally belong to one category and do not limit the number of objects, for example, the first object may be one or more. In addition, in the specification and claims, "and / or" refers to at least one of the connected objects, and the symbol " / " generally refers to the relationship between the related objects of the preceding and following relationships being "or".

[0017] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the techniques described can be used in other systems and wireless technologies in addition to the systems and wireless technologies mentioned above. Although the following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in much of the following description, it should be understood that these technologies are not limited to 6th Generation (6G) and 7th Generation (7G) systems. th The present invention can also be applied to applications other than NR system applications, such as 6G (Generation, 6G) communication systems.

[0018] FIG. 1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be a mobile phone, a tablet personal computer, a laptop computer also called a notebook computer, a personal digital assistant (PDA), a personal digital assistant, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle user equipment (VUE), a pedestrian user equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game machine, a personal computer (PC), an automated teller machine, a kiosk, or other terminal side device. The wearable device includes a smart watch, a smart wristband, a smart earphone, a smart glasses, a smart accessory (such as a smart bracelet, a smart ring, a smart necklace, a smart ankle, a smart anklet, etc.), a smart wristlet, a smart wear, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network side equipment 12 may include an access network equipment or a core network equipment, where the access network equipment 12 may be called a radio access network equipment, a radio access network (Radio Access Network, RAN), a radio access network function, or a radio access network unit.The access network equipment 12 may include a base station, a Wireless Local Area Network (WLAN) access point, or a Wireless Fidelity (WiFi) node, etc., and the base station may be called a Node B, an evolved Node B (eNB), 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 Home B node, a Home evolved B node, a Transmitting Receiving Point (TRP), or any other suitable term in the art, and the base station is not limited to a specific technical term as long as the same technical effect can be achieved. It should be noted that the embodiments of this application only take a base station in an NR system as an example, but the specific type of the base station is not limited.

[0019] Hereinafter, the beam switching delay determination method provided in the embodiments of the present application will be described in detail with reference to the drawings according to several embodiments and use cases thereof.

[0020] As shown in FIG. 2 , an embodiment of the present application provides a method for determining a beam switching delay, which includes the following steps 201 and 202.

[0021] In step 201, a terminal receives indication information for indicating target beams, including a first beam and a second beam respectively associated with two different cells.

[0022] The cell may be identified by a Physical Cell Identifier (PCI) or an Addition PCI index. The target beam may include the first beam and the second beam, as well as other beams, and is not limited thereto.

[0023] When a cell is identified by a PCI, associating the first beam with a PCI includes: Associating the first beam directly with PCI; This may involve associating an indirect Quasi Co-location (QCL) source Reference Signal (RS) of the first beam with the PCI.

[0024] When a cell is identified by an Addition PCI index, the manner in which the first beam is associated with the Addition PCI index coincides with the manner in which the cell is identified by PCI.

[0025] In step 202, when the terminal receives the indication information, it determines a switching delay of the target beam according to a first predetermined rule.

[0026] Optionally, the first predetermined rule is: Extending the Layer 1 (L1) measurement time; Extending the time-frequency synchronization and automatic gain control (AGC) adjustment time; and extending the path loss estimation time.

[0027] The terminal can determine the beam switching delay in the target beam according to a first predetermined rule, for example, determining the beam switching delay in the target beam by extending the L1 measurement time, or determining the beam switching delay in the target beam by extending the time-frequency synchronization and AGC adjustment time, or determining the beam switching delay in the target beam by extending the path loss estimation time.

[0028] In this embodiment, a terminal receives indication information for indicating a target beam including a first beam and a second beam associated with two different cells, and when the terminal receives the indication information, the terminal determines a switching delay of the target beam according to a first predetermined rule. With the above method, when two beams are associated with different cells, the terminal can determine a switching delay of the target beam, and the reliability of data transmission can be ensured.

[0029] In one embodiment of the present application, extending the L1 measurement time includes the following (1) and (2). (1) extending an L1 measurement time corresponding to the first beam by a first predetermined value, the first predetermined value being 1st RS period, Priority of 1RS, The determination is based on at least one of the priorities of the cell associated with the first RS. The first predetermined value may be preset, for example, the first predetermined value may be a first sharing coefficient. (2) extending the L1 measurement time corresponding to the second beam by a second predetermined value, the second predetermined value being 1st RS period, Priority of 1RS, The determination is based on at least one of the priorities of the cell associated with the first RS. The second predetermined value may be preset, for example, the second predetermined value may be the second shared coefficient.

[0030] Extending the path loss estimation time includes the following (1) and (2). (1) extending a path loss estimation time corresponding to the first beam by a third predetermined value, the third predetermined value being 1st RS period, Priority of 1RS, The determination is based on at least one of the priorities of the cell associated with the first RS. The third predetermined value may be preset, for example, the third predetermined value may be a third shared coefficient. (2) extending a path loss estimation time corresponding to the second beam by a fourth predetermined value, the fourth predetermined value being 1st RS period, Priority of 1RS, The determination is based on at least one of the priorities of the cell associated with the first RS. The fourth predetermined value may be preset, for example, the fourth predetermined value may be a fourth shared coefficient.

[0031] The first predetermined value, the second predetermined value, the third predetermined value, and the fourth predetermined value may be the same or different.

[0032] In one embodiment of the present application, the target beam switching delay includes at least one of the following (1) to (5). (1) Delay in receiving and processing the instruction information. (2) Hybrid Automatic Repeat Request (HARQ) delay. (3) L1 measurement time. (4) Time-frequency synchronization and AGC adjustment time. For example, the time-frequency synchronization and AGC adjustment time includes the arrival time of the first RS and the processing time of the first RS, where the first RS is a QCL-Type A source RS or a QCL-Type C source RS in the target beam. (5) Path loss estimation time. For example, the path loss estimation time includes the arrival time of the first path loss reference signal (PL-RS) and the measurement estimation time. Wherein, the measurement estimation time is the time required for a terminal to measure n PL-RS samples and perform smoothing filtering to obtain the path loss, which can be directly understood as n × the period of PL-RS, where n is a positive integer.

[0033] In one embodiment of the present application, when at least two of the RS associated with the first beam, the RS associated with the second beam, and the second RS overlap in the time domain, the first RS includes at least one of the RS associated with the first beam, the RS associated with the second beam, and the second RS among the RSs overlapping in the time domain.

[0034] For example, when the RS associated with the first beam and the RS associated with the second beam overlap in the time domain, the first RS includes the RS associated with the first beam and / or the RS associated with the second beam. When the RS associated with the first beam and the second RS overlap in the time domain, the first RS includes the RS associated with the first beam and / or the second RS. When the RS associated with the second beam and the second RS overlap in the time domain, the first RS includes the RS associated with the second beam and / or the second RS. When the RS associated with the first beam, the RS associated with the second beam, and the second RS overlap in the time domain, the first RS includes at least one of the RS associated with the first beam, the RS associated with the second beam, and the second RS.

[0035] Optionally, the second RS is a Beam Failure Detection Reference Signal (BFD-RS), a Candidate Beam Detection Reference Signal (CBD-RS), a Radio Link Monitor Reference Signal (RLM-RS) or an RS for L1 measurement.

[0036] Optionally, the cell associated with the second RS: Currently serving cell, a cell associated with one of said target beams; It includes one of the items other cells, which are cells other than the current serving cell and the cell associated with each of the target beams.

[0037] In one embodiment of the present application, extending the time-frequency synchronization and AGC adjustment time includes extending an arrival time of a first RS received by the terminal after the terminal receives the instruction information, and extending the arrival time of the first RS means extending the arrival time of the first RS by U times.

[0038] For example, if the arrival time of the first RS received by the terminal after receiving the instruction information is t, the time obtained by extending the arrival time of the first RS is t×U, where U can be 1, 2, 3, etc., and the maximum value of U is K.

[0039] Optionally, when at least two of the RS associated with the first beam, the RS associated with the second beam, and the second RS overlap in the time domain, the value of K is the number of RSs overlapping in the time domain, and U is a positive integer less than or equal to K.

[0040] For example, when the RS associated with the first beam and the RS associated with the second beam overlap in the time domain, the value of K is the number of RSs that the RS associated with the first beam and the RS associated with the second beam overlap in the time domain. For example, when the first beam is associated with the first QCL source RS and the PL-RS, the first QCL source RS and the PL-RS are the same RS, and the second beam is associated with the second QCL source RS, the number of RSs that overlap in the time domain is 2. When the RS associated with the first beam and the second RS overlap in the time domain, the value of K is the number of RSs that overlap in the time domain among the RS associated with the first beam and the second RS. When the RS associated with the second beam and the second RS overlap in the time domain, the value of K is the number of RSs that overlap in the time domain among the RS associated with the second beam and the second RS. When the RS associated with the first beam, the RS associated with the second beam, and the second RS overlap in the time domain, the value of K is the number of RSs among the RS associated with the first beam, the RS associated with the second beam, and the second RS that overlap in the time domain.

[0041] In an embodiment of the present application, the first beam and the second beam satisfy at least one of the following (1) to (4). (1) The first beam or the second beam is associated with a current serving cell, for example, the first beam is associated with a current serving cell and the second beam is associated with a neighboring cell of the current serving cell, or the second beam is associated with the current serving cell and the first beam is associated with a neighboring cell of the current serving cell. (2) The RSs associated with the first beam and the second beam overlap in the time domain. (3) The RS associated with the first beam and the second RS overlap in the time domain. (4) The RS associated with the second beam and the second RS overlap in the time domain.

[0042] In one embodiment of the present application, the RS associated with the first beam is: a direct or indirect quasi-colocated QCL source RS of the first beam; At least one of the PL-RSs associated with the first beam; Or, the RS associated with the second beam is a direct or indirect QCL source RS of the second beam; At least one of the PL-RSs associated with the second beam is included.

[0043] In one embodiment of the present application, the indication information is carried by one or more beam switching indication signalings, which may be Radio Resource Control (RRC), Media Access Control (MAC CE), or Downlink Control Information (DCI), etc.

[0044] The instruction information includes at least one of the following: Spatial relation identifier. TCI state identifier. The TCI state may be a Joint TCI, a Down Link (DL) TCI state, or an Up Link (UL) TCI state, or a TCI state in the related art.

[0045] In one embodiment of the present application, when the terminal receives the instruction information, the step of determining a switching delay of the target beam according to a first predetermined rule includes: The method further includes, when the terminal receives the instruction information, determining a switching delay of the target beam according to a first predetermined rule based on a first switching delay, wherein the first switching delay is determined according to a protocol specification.

[0046] In the embodiment of the present application, the RS, the QCL source RS and the PL-RS may be a Synchronization Signal Block (SSB), a Channel State Information Reference Signal (CSI-RS), or a Sounding Reference Signal (SRS).

[0047] Next, the beam switching delay determination method provided in this application will be described with an example as follows.

[0048] In one implementation, the cases where a network side device indicates multiple DL TCI states associated with different PCIs are as follows.

[0049] Case 1: The network side device simultaneously indicates DL TCI state#1 associated with PCI#1 and DL TCI-state#2 associated with PCI#2, and the RS associated with DL TCI state#1 and the RS associated with DL TCI state#2 overlap in the time domain, and the periods of SSB#x and SSB#y are the same, as shown in Figure 3a, i.e., the two reference signals completely overlap in the time domain.

[0050] Case 1-1: As shown in FIG. 3b, DL TCI state#1 and DL TCI state#2 are both known, that is, the terminal has measured the corresponding beams.

[0051] Since there is no need to perform L1 measurement, for the beam switching delay, it is only necessary to consider the relaxation of the time-frequency synchronization and AGC adjustment time based on the conventional switching delay, i.e., the time requirement of the first SSB is relaxed. Specifically, as shown in FIG. 3b, assuming that cell#1 has a high priority, the terminal first completes the time-frequency synchronization and AGC adjustment of DL TCI state#1 based on SSB#x, and then completes the time-frequency synchronization and AGC adjustment of DL TCI state#2 based on the second SSB#y, so the time-frequency synchronization and AGC adjustment time of DL TCI state#2 should be relaxed to the second SSB or 2*first SSB (i.e., twice the time-frequency synchronization and AGC adjustment time determined based on the first SSB#x), and the time-frequency synchronization and AGC adjustment time of DL TCI state#1 remains unchanged and is still the first SSB, and the first SSB is the time-frequency synchronization and AGC adjustment time determined based on the first SSB#x.

[0052] Case 1-2: DL TCI state #1 is known, and DL TCI state #2 is unknown.

[0053] The switching delay of DL TCI state#1 does not need to take the L1 measurement time into consideration, but the switching delay of DL TCI state#2 needs to take the L1 measurement time into consideration. Specifically, as shown in Figure 3c, assuming that cell#1 has high priority, the terminal first completes time-frequency synchronization and AGC adjustment of DL TCI state#1 based on SSB#x, and then DL TCI state#1 is enabled.

[0054] In order to be valid, DL TCI state#2 needs to wait until the second SSB#y to perform time-frequency synchronization and AGC adjustment, and also needs to perform L1 measurement for L1-RSRP to find a suitable receiving beam (Rx beam). Considering that SSB#x and SSB#y are both used for L1 measurement and overlap in the time domain, the measurement time requirement needs to be relaxed by staggering the measurements. As shown in Figure 3c, assuming that SSB#x and SSB#y are measured with 1:1 equal measurement time intervals, respectively, the L1 measurement time of SSB#x and SSB#y should be relaxed by a sharing factor of 2. Therefore, DL TCI state#2 can only be valid after satisfying the L1 measurement time requirement.

[0055] Case 1-3: Both DL TCI state#1 and DL TCI state#2 are unknown.

[0056] As shown in Figure 3d, the switching delay between DL TCI state#1 and DL TCI state#2 must take into account the time-frequency synchronization, AGC adjustment time, and L1 measurement time. This is different from case 1-2 in that DL TCI state#1 must meet the L1 measurement requirement in addition to meeting the time-frequency synchronization and AGC adjustment time requirements.

[0057] Case 2: As shown in FIG. 3e, the periods of SSB#x and SSB#y are different, that is, the two reference signals partially overlap in the time domain.

[0058] Case 2-1: DL TCI state#1 and DL TCI state#2 are both known, i.e., the terminal has measured the corresponding beams.

[0059] Assuming that the priority of cell#1 is high or the priority of SSB#x is high, i.e., the longer the RS period, the higher the priority, the terminal preferentially performs time-frequency synchronization and AGC adjustment of DL TCI state#1 based on SSB#x, and then completes time-frequency synchronization and AGC adjustment of DL TCI state#2 based on the second SSB#y, so that the switching delay between DL TCI state#1 and DL TCI state#2 is the same as case 1-1.

[0060] Assuming that cell #2 has a higher priority, the terminal first performs time-frequency synchronization and AGC adjustment of DL TCI state #2 based on SSB #y, and then completes time-frequency synchronization and AGC adjustment of DL TCI state #1 based on the second SSB #x, and the switching delay of the two beams is as shown in Figure 3f.

[0061] Case 2-2: DL TCI state#1 is known, and DL TCI state#2 is unknown.

[0062] Case 2-2 differs from Case 1-2 in the value of the sharing factor. Because the periods of SSB#x and SSB#y are different, some SSB#y overlaps with SSB#x. In this case, the sharing factor of the L1 measurement time can be determined by the periods of SSB#x and SSB#y.

[0063] As shown in Figure 3g, RSs with a longer period are measured preferentially, i.e., when SSB#y and SSB#x overlap, the terminal measures only SSB#x. In such a case, since all SSB#x perform L1 measurements, there is no need to relax the L1 measurement time requirement for SSB#x, but since some SSB#y overlap with SSB#x and do not perform L1 measurements, it is necessary to relax the L1 measurement time for SSB#y according to the sharing coefficient = 1 / (1-SSB#y period / SSB#x period), where " / " in the formula stands for "÷".

[0064] Case 2-3: Both DL TCI state#1 and DL TCI state#2 are unknown.

[0065] Case 2-3 differs from case 2-2 in that DL TCI state#1 also needs to take into account the L1 measurement time of SSB#x, but as explained in case 2-2, there is no need to relax the L1 measurement requirements of SSB#x. The specific switching delay is shown in Figure 3h.

[0066] In another implementation, the case where the network side device indicates multiple UL TCI states associated with different PCIs is as follows.

[0067] A network side device indicates UL TCI state#1 related to PCI#1 and UL TCI-state#2 related to PCI#2, an RS related to UL TCI state#1 and an RS related to UL TCI state#2 overlap in the time domain, and a terminal does not maintain a PL-RS related to UL TCI-state#1 and UL TCI-state#2. A QCL source RS (RS#1) directly or indirectly related to UL TCI state#1 and a PL-RS (RS#2) related to UL TCI state#1 may be the same or different. A QCL source RS (RS#3) directly or indirectly related to UL TCI state#2 and a PL-RS (RS#4) related to UL TCI state#2 may be the same or different.

[0068] Case 3: The periods of the RS associated with the UL TCI state #1 and the RS associated with the UL TCI state #2 are the same, ie, completely overlap in the time domain.

[0069] Case 3-1: Both UL TCI state #1 and UL TCI state #2 are known.

[0070] Since there is no need to perform L1 measurement, for the beam switching delay, it is only necessary to consider relaxing the path loss estimation time based on the conventional switching delay, that is, relaxing the time requirements for sampling estimation of the first PL-RS and the subsequent PL-RS. Specific relaxation forms include the following two types:

[0071] Based on the PL-RS priority or cell priority, the terminal first completes path loss estimation for UL TCI state#1 based on sampling of the PL-RS associated with UL TCI state#1 and the subsequent N-1 PL-RSs, and then completes path loss estimation for UL TCI state#2 by sampling of the PL-RS associated with UL TCI state#2 and the subsequent N-1 PL-RSs. In this case, it is only necessary to relax the path loss estimation time corresponding to TCI state#2 according to sharing factor=2.

[0072] When the terminal measures the PL-RS associated with UL TCI state#1 and the PL-RS associated with UL TCI state#2 in a staggered order to estimate path loss, in this case it is necessary to relax the path loss estimation time corresponding to TCI state#1 and TCI state#2 according to sharing factor=2, which is similar to case 1-2.

[0073] Case 3-2: UL TCI state #1 is known, and UL TCI state #2 is unknown.

[0074] Compared to case 3-1, the switching delay of UL TCI state#2 must also take into account the L1 measurement time. Specific switching delay requirements are shown in Table 1 below.

[0075] [Table 1]

[0076] Case 3-3: UL TCI state #1 is unknown, and UL TCI state #2 is unknown.

[0077] Compared to case 3-1, the switching delay between UL TCI state#1 and UL TCI state#2 must also take into account the L1 measurement time. Specific switching delay requirements are shown in Table 2 below.

[0078] [Table 2-1] [Table 2-2]

[0079] Case 4: The periods of the RS associated with the UL TCI state #1 and the RS associated with the UL TCI state #2 are different, ie, they partially overlap in the time domain.

[0080] Case 4-1: Both UL TCI state #1 and UL TCI state #2 are known.

[0081] Since there is no need to perform L1 measurements, for the beam switching delay, only relaxation of the path loss estimation time needs to be considered based on the conventional switching delay, i.e., relaxing the time requirement for sampling estimation of the first PL-RS and the subsequent PL-RS. Because the periods of RS#2 and RS#4 are different, some RS#2 overlaps with RS#4. In such a case, the sharing factor of the path loss estimation time can be determined by the periods of RS#2 and RS#4 (assuming that the period of RS#2 is larger than RS#4). When the terminal preferentially measures the RS with the larger period, i.e., when RS#2 and RS#4 overlap, the terminal measures only RS#2. In such a case, since the terminal performs path loss estimation based on any of the previous N RS#2s, there is no need to relax the path loss estimation time requirement based on RS#2, i.e., sharing factor=1, and since some RS#4s overlap with RS#2 and therefore do not perform path loss estimation, the path loss estimation based on RS#4 needs to be relaxed according to sharing factor=1 / (1-period of RS#4 / period of RS#2).

[0082] Case 4-2: UL TCI state #1 is known, and UL TCI state #2 is unknown.

[0083] Compared with case 4-1, the switching delay of UL TCI state#2 in case 4-2 needs to take into account the L1 measurement time. The specific switching delay requirements are shown in Table 3 below, and the values ​​of sharing factor#1 and sharing factor#2 in the table may refer to case 4-1.

[0084] [Table 3]

[0085] Case 4-3: Both UL TCI state#1 and UL TCI state#2 are unknown.

[0086] Compared to case 3-1, the switching delay between UL TCI state#1 and UL TCI state#2 requires additional consideration of the L1 measurement time. Specific switching delay requirements are shown in Table 4 below, and the values ​​of sharing factor#1 and sharing factor#2 in Table 4 may refer to case 4-1.

[0087] [Table 4-1] [Table 4-2] [Table 4-3]

[0088] In yet another embodiment, the network side device indicates DL TCI status and UL TCI status associated with different PCIs.

[0089] A network side device simultaneously instructs DL TCI state#1 related to PCI#1 and UL TCI-state#2 related to PCI#2, an RS (RS#1) related to DL TCI state#1 and an RS related to UL TCI state#2 overlap in the time domain, and a terminal does not maintain a PL-RS related to UL TCI-state#2. A QCL source RS (RS#2) directly or indirectly related to UL TCI state#2 and a PL-RS (RS#3) related to UL TCI state#2 may be the same or different.

[0090] Case 5: The periods of the RS associated with the UL TCI state #1 and the RS associated with the UL TCI state #2 are the same, ie, completely overlap in the time domain.

[0091] Case 5-1: DL TCI state #1 and UL TCI state #2 are both known. (1) The terminal maintains the PL-RS associated with UL TCI state #2. There is no need to relax the switching delay requirement between DL TCI state#1 and UL TCI state#2. (2) The terminal does not maintain the PL-RS related to UL TCI state #2, and RS #1 and RS #3 overlap. (21) Extend the time-frequency synchronization and AGC adjustment time based on RS#1, that is, the time to wait for the first RS#1. The waiting time for the N+1th RS#1 is extended, and the path loss estimation time for the UL TCI state#2 is not extended. The waiting time for the second RS#1 is extended, and the N-1 sampling times based on RS#3 in the path loss estimation time of UL TCI state#2 are extended to the N sampling times based on RS#3. (22) The time to wait for the first RS #3 in the path loss estimation time of the UL TCI state #2 is extended to the time to wait for the second RS #3, or extended to twice the time to wait for the first RS #3. There is no need to reduce the switching delay of the UL TCI state #2.

[0092] Case 5-2: DL TCI state #1 is known, and UL TCI state #2 is unknown.

[0093] Case 5-2-1: The terminal maintains a PL-RS associated with UL TCI state#2, and RS#1 and RS#2 overlap.

[0094] Since RS#1 and RS#2 overlap, it is necessary to relax the time-frequency synchronization and AGC adjustment time for DL ​​TCI state#1 and the L1 measurement time corresponding to UL TCI state#2, as follows: The time-frequency synchronization and AGC adjustment time for DL ​​TCI state#1 are not extended, and the L1 measurement time corresponding to UL TCI state#2 is extended by the time to wait for the first RS#2. The L1 measurement time corresponding to UL TCI state#2 is not extended, and the time-frequency synchronization and AGC adjustment time for DL ​​TCI state#1 are extended by the L1 measurement time based on RS#1.

[0095] The terminal does not maintain the PL-RS associated with UL TCI state#2, as shown in Table 5.

[0096] [Table 5]

[0097] Case 5-3: Both DL TCI state#1 and UL TCI state#2 are unknown.

[0098] Case 5-3-1: The terminal maintains a PL-RS associated with UL TCI state#2, and RS#1 and RS#2 overlap.

[0099] Since RS#1 and RS#2 overlap, it is necessary to relax the time-frequency synchronization, AGC adjustment time, and L1 measurement time for DL ​​TCI state#1, as well as the L1 measurement time for UL TCI state#2, as follows:

[0100] There is no need to relax the time-frequency synchronization and AGC adjustment time of DL TCI state#1, and the L1 measurement time of DL TCI state#1 and UL TCI state#2 is relaxed by the sharing factor. Also, optionally, the switching delay of UL TCI state#2 needs to be further extended by waiting for the first RS#2 or by one RS#2 period.

[0101] The terminal does not maintain the PL-RS associated with UL TCI state#2.

[0102] For DL ​​TCI state#1 switching delay requirements, at least time-frequency synchronization, AGC adjustment time, and L1 measurement time should be relaxed. For UL TCI state#2 switching delay requirements, at least path loss estimation time and L1 measurement time should be relaxed. The details are shown in Table 6.

[0103] [Table 6]

[0104] Case 6: The periods of the RS associated with the UL TCI state #1 and the RS associated with the UL TCI state #2 are different, ie, they partially overlap in the time domain.

[0105] Case 6-1: DL TCI state#1 and UL TCI state#2 are both known. (1) The terminal maintains the PL-RS associated with UL TCI state #2. There is no need to relax the switching delay requirement between DL TCI state#1 and UL TCI state#2. (2) The terminal does not maintain the PL-RS associated with UL TCI state#2, and RS#1 and RS#3 partially overlap. (21) Extend the time-frequency synchronization and AGC adjustment time based on RS#1, that is, the time to wait for the first RS#1. For example, the waiting time for the second RS#1 is extended, or the waiting time for the first RS#1 is extended to twice as long, and the N-1 sampling time based on RS#3 in the path loss estimation time of UL TCI state#2 is extended to the N sampling time based on RS#3. (22) The time to wait for the first RS #3 in the path loss estimation time of the UL TCI state #2 is extended to the time to wait for the second RS #3, or extended to twice the time to wait for the first RS #3. There is no need to reduce the switching delay of the UL TCI state #2.

[0106] Case 6-2: DL TCI state#1 is known, and UL TCI state#2 is unknown.

[0107] Case 6-2-1: The terminal maintains a PL-RS associated with UL TCI state#2, and RS#1 and RS#2 overlap.

[0108] Same as Case 5-2-1.

[0109] The terminal does not maintain the PL-RS associated with UL TCI state#2, as shown in Table 7.

[0110] [Table 7]

[0111] Case 6-3: Both DL TCI state#1 and UL TCI state#2 are unknown.

[0112] Case 6-3-1: The terminal maintains a PL-RS associated with UL TCI state#2, and RS#1 and RS#2 overlap.

[0113] Since RS#1 and RS#2 overlap, it is necessary to relax the time-frequency synchronization, AGC adjustment time, and L1 measurement time for DL ​​TCI state#1, as well as the L1 measurement time for UL TCI state#2, as follows:

[0114] There is no need to relax the time-frequency synchronization and AGC adjustment time of DL TCI state#1, the L1 measurement time of DL TCI state#1 is relaxed by sharing factor#1, and the L1 measurement time of UL TCI state#2 is relaxed by sharing factor#2. Also, optionally, the switching delay of UL TCI state#2 needs to be further extended by waiting for the first RS#2 or by one RS#2 period.

[0115] The terminal does not maintain the PL-RS associated with UL TCI state#2.

[0116] For DL ​​TCI state#1 switching delay requirements, at least time-frequency synchronization, AGC adjustment time, and L1 measurement time should be relaxed. For UL TCI state#2 switching delay requirements, at least path loss estimation time and L1 measurement time should be relaxed. Specifically, as shown in Table 8 below.

[0117] [Table 8]

[0118] The present invention provides a method for determining a beam switching delay, so that when a network indicates a plurality of beams associated with different cells for data scheduling and transmission, a terminal can clearly determine and accurately apply the activation time of the corresponding beam, and ensure the reliability of transmission. The method for determining a beam switching delay provided in this application is preferably applied to high-speed moving scenes.

[0119] The beam switching delay determining method provided in the embodiment of the present application may be performed by a beam switching delay determining device. In the embodiment of the present application, the beam switching delay determining device provided in the embodiment of the present application will be described by taking the beam switching delay determining device performing the beam switching delay determining method as an example.

[0120] As shown in FIG. 4, the embodiment of the present application is a receiving module 401, which is used for receiving indication information for indicating a target beam, including a first beam and a second beam respectively associated with two different cells; and a determining module 402, which is used for determining a switching delay of the target beam according to a first predetermined rule when receiving the instruction information.

[0121] Optionally, the first predetermined rule is: Extending the layer L1 measurement time; and Extending the time-frequency synchronization and AGC adjustment time; and extending the path loss estimation time.

[0122] Optionally, extending the L1 measurement time includes: Extending an L1 measurement time corresponding to the first beam by a first predetermined value; and extending the L1 measurement time corresponding to the second beam by a second predetermined value; Extending the path loss estimation time extending a path loss estimation time corresponding to the first beam by a third predetermined value; Extending a path loss estimation time corresponding to the second beam by a fourth predetermined value.

[0123] Optionally, the first predetermined value is: the period of the first reference signal RS, Priority of 1RS, at least one of a priority of a cell associated with the first RS; Or, The second predetermined value is 1st RS period, Priority of 1RS, at least one of a priority of a cell associated with the first RS; Or, The third predetermined value is 1st RS period, Priority of 1RS, at least one of a priority of a cell associated with the first RS; Or, The fourth predetermined value is 1st RS period, Priority of 1RS, The determination is based on at least one of the priorities of the cell associated with the first RS.

[0124] Optionally, when at least two of the RS associated with the first beam, the RS associated with the second beam, and the second RS overlap in the time domain, the first RS includes at least one of the RS associated with the first beam, the RS associated with the second beam, and the second RS among the RSs overlapping in the time domain.

[0125] Optionally, extending the time-frequency synchronization and AGC adjustment time includes extending an arrival time of a first RS received after receiving the instruction information, and extending the arrival time of the first RS is extending the arrival time of the first RS by U times.

[0126] Optionally, when at least two of the RS associated with the first beam, the RS associated with the second beam, and the second RS overlap in the time domain, the value of K is the number of RSs overlapping in the time domain, and U is a positive integer less than or equal to K.

[0127] Optionally, the first beam and the second beam are: The first beam or the second beam is associated with a current serving cell of the terminal; and RSs associated with the first beam and the second beam overlap in a time domain; an RS associated with the first beam and a second RS overlap in the time domain; The RS associated with the second beam and the second RS overlap in the time domain.

[0128] Optionally, the cell associated with the second RS: a current serving cell of the terminal; a cell associated with one of said target beams; The other cell may include one of the following: the current serving cell and another cell other than the cell associated with each of the target beams.

[0129] Optionally, the second RS is a beam failure detection reference signal BFD-RS, a candidate beam detection reference signal CBD-RS, a radio link monitor reference signal RLM-RS or an RS for L1 measurement.

[0130] Optionally, the RS associated with the first beam comprises: a direct or indirect quasi-colocated QCL source RS of the first beam; At least one of the path loss reference signals PL-RS associated with the first beam; Or, the RS associated with the second beam is a direct or indirect QCL source RS of the second beam; At least one of the PL-RSs associated with the second beam is included.

[0131] Optionally, the instruction information is carried by one or more beam switching signalings.

[0132] Optionally, the instruction information includes: Spatial relationship identifiers, The transmission configuration indication includes at least one of the TCI state identifiers.

[0133] Optionally, the target beam switching delay is: a delay in receiving and processing said instruction information; Hybrid Automatic Repeat Request (HARQ) Delay, L1 measurement time, Time-frequency synchronization and AGC adjustment time, The path loss estimation time includes at least one of:

[0134] Optionally, the determination module 402 is used for determining a switching delay of the target beam according to a first predetermined rule based on the first switching delay when receiving the instruction information.

[0135] Optionally, the first switching delay is determined by a protocol definition.

[0136] The beam switching delay determining device in the embodiment of the present application may be an electronic device, for example an electronic device with an operating system, or may be a component in an electronic device, for example an integrated circuit or chip. The electronic device may be a terminal, or other devices other than a terminal. Exemplarily, the terminal may include, but is not limited to, the types of terminal 11 listed above, and the other devices may be a server, a network attached storage (NAS), etc. In the embodiment of the present application, there is no specific limitation.

[0137] The beam switching delay determination apparatus provided in the embodiment of the present application can realize each step implemented in the method embodiment of Figure 2 and achieve the same technical effect, so detailed description will be omitted here to avoid duplication.

[0138] Optionally, as shown in FIG. 5, an embodiment of the present application further provides a communication device 500 having a processor 501 and a memory 502 storing a program or command executable by the processor 501, for example, when the communication device 500 is a terminal, when the program or command is executed by the processor 501, each step of the embodiment of the above-mentioned beam switching delay determination method can be realized and the same technical effect can be achieved.

[0139] The embodiment of the present application further provides a terminal including a processor and a communication interface, where the processor is used to determine the switching delay of the target beam according to a first predetermined rule when receiving the instruction information, and the communication interface is used to receive the instruction information for indicating the target beam, which includes a first beam and a second beam respectively associated with two different cells. The embodiment of the terminal corresponds to the embodiment of the terminal-side method described above, and each implementation step and realization form of the embodiment of the method can be applied to the embodiment of the terminal, and the same technical effect can be achieved. Specifically, FIG. 6 is a schematic diagram of a hardware configuration of a terminal for implementing the embodiment of the present application.

[0140] The terminal 600 may include at least some elements such as, but not limited to, a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609 and a processor 610.

[0141] As can be understood by those skilled in the art, the terminal 600 may further include a power source (e.g., a battery) for powering each component, and the power source is logically connected to the processor 610 via a power management system, which may further realize functions such as charge / discharge management and power consumption management. The configuration of the terminal shown in FIG. 6 is not intended to limit the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different component arrangement, and detailed description thereof will be omitted here.

[0142] It should be understood that in the embodiment of the present application, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042 for processing image data of still or video captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, which may be arranged in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch panel. The touch panel 6071 may include two parts: a touch detection device and a touch controller. The other input devices 6072 may include, but are not limited to, a physical keyboard, a function button (e.g., a volume control button, a switch button, etc.), a trackball, a mouse, and an operation lever. Detailed description is omitted here.

[0143] In the embodiment of the present application, the radio frequency unit 601 can receive downlink data from the network side device and then transmit the data to the processor 610 for processing. The radio frequency unit 601 can also transmit uplink data to the network side device. Typically, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a receiver-transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0144] The memory 609 can be used to store software programs or commands and various data. The memory 609 may mainly include a first storage area capable of storing an operating system, an application or command required for at least one function (e.g., a sound playback function, an image playback function, etc.), and a second storage area for storing data. The memory 609 may also include a volatile memory or a non-volatile memory, or the memory 609 may include both a volatile and a non-volatile memory. Here, 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. The volatile memory may be Random Access Memory (RAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synch link Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM). Memory 609 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

[0145] The processor 610 may include one or more processing units, and optionally integrates an application processor that mainly processes operations related to an operating system, a user interface, and applications, and a modem processor that mainly processes wireless communication signals, such as a baseband processor, in the processor 610. It can be understood that the modem processor does not have to be integrated in the processor 610.

[0146] Here, the radio frequency unit 601 is used for receiving indication information for indicating target beams, which include a first beam and a second beam respectively associated with two different cells.

[0147] The processor 610 is used for determining a switching delay of the target beam according to a first predetermined rule when the processor 610 receives the instruction information.

[0148] Optionally, the first predetermined rule is: Extending the layer L1 measurement time; and Extending the time-frequency synchronization and AGC adjustment time; and extending the path loss estimation time.

[0149] Optionally, extending the L1 measurement time includes: Extending an L1 measurement time corresponding to the first beam by a first predetermined value; and extending the L1 measurement time corresponding to the second beam by a second predetermined value; Extending the path loss estimation time extending a path loss estimation time corresponding to the first beam by a third predetermined value; Extending a path loss estimation time corresponding to the second beam by a fourth predetermined value.

[0150] Optionally, the first predetermined value is: the period of the first reference signal RS, Priority of 1RS, at least one of a priority of a cell associated with the first RS; Or, The second predetermined value is 1st RS period, Priority of 1RS, at least one of a priority of a cell associated with the first RS; Or, The third predetermined value is 1st RS period, Priority of 1RS, at least one of a priority of a cell associated with the first RS; Or, The fourth predetermined value is 1st RS period, Priority of 1RS, The determination is based on at least one of the priorities of the cell associated with the first RS.

[0151] Optionally, when at least two of the RS associated with the first beam, the RS associated with the second beam, and the second RS overlap in the time domain, the first RS includes at least one of the RS associated with the first beam, the RS associated with the second beam, and the second RS among the RSs overlapping in the time domain.

[0152] Optionally, extending the time-frequency synchronization and AGC adjustment time includes extending an arrival time of a first RS received after receiving the instruction information, and extending the arrival time of the first RS is extending the arrival time of the first RS by U times.

[0153] Optionally, when at least two of the RS associated with the first beam, the RS associated with the second beam, and the second RS overlap in the time domain, the value of K is the number of RSs overlapping in the time domain, and U is a positive integer less than or equal to K.

[0154] Optionally, the first beam and the second beam are: The first beam or the second beam is associated with a current serving cell of the terminal; and RSs associated with the first beam and the second beam overlap in a time domain; an RS associated with the first beam and a second RS overlap in the time domain; The RS associated with the second beam and the second RS overlap in the time domain.

[0155] Optionally, the cell associated with the second RS: a current serving cell of the terminal; a cell associated with one of said target beams; The other cell may include one of the following: the current serving cell and another cell other than the cell associated with each of the target beams.

[0156] Optionally, the second RS is The beam failure detection reference signal BFD-RS, the candidate beam detection reference signal CBD-RS, the radio link monitor reference signal RLM-RS or the RS for L1 measurement.

[0157] Optionally, the RS associated with the first beam comprises: a direct or indirect quasi-colocated QCL source RS of the first beam; At least one of the path loss reference signals PL-RS associated with the first beam; Or, the RS associated with the second beam is a direct or indirect QCL source RS of the second beam; At least one of the PL-RSs associated with the second beam is included.

[0158] Optionally, the instruction information is carried by one or more beam switching signalings.

[0159] Optionally, the instruction information includes: Spatial relationship identifiers, The transmission configuration indication includes at least one of the TCI state identifiers.

[0160] Optionally, the target beam switching delay is: a delay in receiving and processing said instruction information; Hybrid Automatic Repeat Request (HARQ) Delay, L1 measurement time, Time-frequency synchronization and AGC adjustment time, The path loss estimation time includes at least one of:

[0161] Optionally, the processor 610 is adapted to determine a switching delay of the target beam according to a first predetermined rule based on a first switching delay when the processor 610 receives the instruction information.

[0162] Optionally, the first switching delay is determined by a protocol definition.

[0163] The terminal provided in the embodiment of the present application can realize each step implemented in the method embodiment shown in FIG. 2 and achieve the same technical effect, so detailed description will be omitted here to avoid duplication.

[0164] An embodiment of the present application further provides a readable storage medium that stores a program or command, which, when executed by a processor, can realize each step of the embodiment of the beam switching delay determination method described above and achieve the same technical effect, and detailed description thereof will be omitted here to avoid duplication.

[0165] Wherein, the processor is the processor in the terminal according to the above embodiment. The readable storage medium includes a computer readable storage medium such as a computer read only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0166] An embodiment of the present application further provides a chip comprising a processor and a communication interface, the communication interface and the processor being coupled to each other, and the processor executing a program or command to realize each step of the above-mentioned beam switching delay determination method embodiment, and capable of achieving the same technical effect, and detailed description thereof will be omitted here to avoid duplication.

[0167] It should be understood that the chips referred to in the embodiments of this application may be referred to as system level chips, system chips, chip systems, system on chips, or the like.

[0168] An embodiment of the present application further provides a computer program product stored in a storage medium, which can be executed by at least one processor to realize each step of the embodiment of the beam switching delay determination method and achieve the same technical effect, and detailed descriptions thereof will be omitted here to avoid duplication.

[0169] An embodiment of the present application further provides a communication system comprising a terminal and a network side equipment that can be used to perform the steps of the above-mentioned beam switching delay determination method.

[0170] It should be noted that in this specification, the terms "comprise", "consist of" or any other variations are intended to include a non-exclusive inclusion, whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly stated or inherent to such process, method, article, or apparatus. Unless otherwise specified, an element limited by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. It should also be noted that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions substantially simultaneously or in the reverse order depending on such functions, for example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Also, features described with reference to any example may be combined in other examples.

[0171] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be realized in the form of a combination of software and a necessary common hardware platform, and of course, they can also be realized by hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solutions of the present application can be substantially or the part that contributes to the prior art can be embodied in the form of a computer software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a number of commands that cause a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the embodiments of the present application.

[0172] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the suggestions of the present application, many forms that a person skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application.

Claims

1. receiving, by the terminal, indication information for indicating a target beam including a first beam and a second beam respectively associated with two different cells; determining a switching delay of the target beam according to a first predetermined rule when the terminal receives the instruction information; A method for determining a beam switching delay, comprising:

2. The first predetermined rule is: Extending the layer L1 measurement time; and Extending the time-frequency synchronization and automatic gain control (AGC) adjustment time; Extending the path loss estimation time; and The method of claim 1 , comprising at least one of:

3. Extending the L1 measurement time Extending an L1 measurement time corresponding to the first beam by a first predetermined value; Extending an L1 measurement time corresponding to the second beam by a second predetermined value; Including, Extending the path loss estimation time extending a path loss estimation time corresponding to the first beam by a third predetermined value; extending a path loss estimation time corresponding to the second beam by a fourth predetermined value; The method of claim 2 , comprising:

4. The first predetermined value is The period of the first reference signal RS, Priority of the first RS, Priority of the cell associated with the first RS and Or, The second predetermined value is The period of the first RS, Priority of the first RS, Priority of the cell associated with the first RS and Or, The third predetermined value is The period of the first RS, Priority of the first RS, Priority of the cell associated with the first RS and Or, The fourth predetermined value is The period of the first RS, Priority of the first RS, Priority of the cell associated with the first RS The method of claim 3, wherein the at least one of the following is determined:

5. The method of claim 4, wherein when at least two of the RS associated with the first beam, the RS associated with the second beam, and the second RS overlap in the time domain, the first RS includes at least one of the RS associated with the first beam, the RS associated with the second beam, and the second RS among the RSs overlapping in the time domain.

6. The method of claim 2, wherein extending the time-frequency synchronization and AGC adjustment time includes extending an arrival time of a first RS received after receiving the instruction information, and extending the arrival time of the first RS is extending the arrival time of the first RS by U times.

7. 7. The method of claim 6, wherein when at least two of the RS associated with the first beam, the RS associated with the second beam, and the second RS overlap in the time domain, the value of K is the number of RSs overlapped in the time domain, and U is a positive integer less than or equal to K.

8. The first beam and the second beam are The first beam or the second beam is associated with a current serving cell of the terminal; and RSs associated with the first beam and the second beam overlap in a time domain; an RS associated with the first beam and a second RS overlap in a time domain; an RS associated with the second beam and the second RS overlap in a time domain; The method of claim 1 , wherein at least one of the following is satisfied:

9. The cell associated with the second RS comprises: a current serving cell of the terminal; a cell associated with one of said target beams; Another cell, which is a cell other than the current serving cell and the cell associated with each of the target beams.

9. The method of claim 5, 7 or 8, comprising one of the steps:

10. The second RS is The method according to claim 5, 7 or 8, wherein the beam failure detection reference signal BFD-RS, the candidate beam detection reference signal CBD-RS, the radio link monitor reference signal RLM-RS or an RS for L1 measurement.

11. The RS associated with the first beam is a direct or indirect quasi-colocated QCL source RS of the first beam; a path loss reference signal PL-RS associated with the first beam At least one of Or, the RS associated with the second beam is a direct or indirect QCL source RS of the second beam; A PL-RS associated with the second beam 9. The method of claim 5, 7 or 8, comprising at least one of:

12. The method of claim 1 , wherein the instruction information is conveyed by one or more beam switching signalings.

13. The instruction information is Spatial relationship identifiers, Transmission Configuration Indicator (TCI) Status Identifier The method of claim 1 , comprising at least one of:

14. The target beam switching delay is a delay in receiving and processing said instruction information; Hybrid Automatic Repeat Request (HARQ) Delay, L1 measurement time, Time-frequency synchronization and AGC adjustment time, Path Loss Estimation Time The method of claim 1 , comprising at least one of:

15. The step of determining a switching delay of the target beam according to a first predetermined rule when the terminal receives the instruction information includes: The method according to claim 1 or 2, comprising a step of determining a switching delay of the target beam according to a first predetermined rule based on a first switching delay when the terminal receives the instruction information.

16. The method of claim 15 , wherein the first switching delay is determined by a protocol definition.

17. a receiving module adapted to receive indication information for indicating a target beam, the target beam including a first beam and a second beam respectively associated with two different cells; a determining module, which is used for determining a switching delay of the target beam according to a first predetermined rule when receiving the indication information; 13. An apparatus for determining a beam switching delay comprising:

18. The first predetermined rule is: Extending the layer L1 measurement time; and Extending the time-frequency synchronization and AGC adjustment time; Extending the path loss estimation time; and 20. The apparatus of claim 17, comprising at least one of:

19. A terminal comprising a processor and a memory for storing programs or commands executable by the processor, the programs or commands being executed by the processor to implement steps of the beam switching delay determination method according to any one of claims 1 to 16.

20. A readable storage medium storing a program or commands, which, when executed by a processor, implements the steps of the method for determining a beam switching delay according to any one of claims 1 to 16.

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