Method, apparatus, 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 Chinese Patent Application No. 202210135647.X, filed in China on February 14, 2022, the entire content of which is incorporated herein by reference.

[0002] This application belongs to the technical field of communications, and specifically relates to a method, apparatus, and terminal for determining beam switching delay.

Background Art

[0003] When a terminal performs data transmission and reception using a target beam, it cannot normally perform data reception and / or transmission using the target beam without measuring the reference signal related to the target beam. In the prior art, when a network-side device activates a plurality of Transmission Configuration Indicator (TCI) states related to different cells, a terminal cannot simultaneously measure the reference signals of the plurality of cells. Therefore, there is still no solution for how a terminal determines the switching delay of a plurality of target beams related to different cells, which affects the reliability of data transmission of the terminal.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Embodiments of this application provide a method, apparatus, and terminal for determining beam switching delay that can solve the problem of low reliability of data transmission of a terminal when a network-side device activates a plurality of TCI states related to different cells.

Means for Solving the Problems

[0005] In a first aspect, a step in which a terminal receives instruction information for instructing a target beam including a first beam and a second beam respectively related to two different cells; When the terminal receives the instruction information, the terminal determines the switching delay of the target beam in accordance with the first predetermined rule. This provides a method for determining beam switching delay, including [specific details omitted].

[0006] In a second embodiment, a receiving module used to receive instruction information for indicating a target beam including a first beam and a second beam associated with two different cells, A decision module used to determine the target beam switching delay in accordance with a first predetermined rule upon receiving the instruction information, The device provides a mechanism for determining the beam switching delay.

[0007] In a third embodiment, a terminal is provided comprising a processor and a memory for storing a program or command executable by the processor, wherein when the program or command is executed by the processor, the terminal realizes the steps of the method described in the first embodiment.

[0008] In a fourth embodiment, a terminal is provided comprising a processor and a communication interface, wherein the processor is used to determine the switching delay of the target beam in accordance with a first predetermined rule when it receives the instruction information, 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 embodiment, a communication system is provided comprising a terminal and network-side equipment that can be used to perform the steps of the method described in the first embodiment.

[0010] In a sixth embodiment, a readable storage medium for storing a program or command is provided, wherein when the program or command is executed by a processor, the steps of the method described in the first embodiment are realized.

[0011] In a seventh embodiment, a chip is provided comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor executes a program or command to implement the method described in the first embodiment.

[0012] In the eighth embodiment, a computer program product is provided which is stored on a storage medium, and which realizes the steps of the method described in the first embodiment by being executed by at least one processor.

[0013] In the embodiment of this application, a terminal receives instruction information for indicating target beams, including a first beam and a second beam, each associated with two different cells, and when the terminal receives the instruction information, it determines the target beam switching delay according to a first predetermined rule. This method allows the terminal to determine the target beam switching delay when the two beams are associated with different cells, thereby ensuring the reliability of data transmission. [Brief explanation of the drawing]

[0014] [Figure 1] This is a block diagram of a wireless communication system that can be applied in the embodiments of this application. [Figure 2] This is a flowchart of the method for determining beam switching delay provided in the embodiment of this application. [Figure 3a] This is a schematic diagram of the beam switching delay determination method provided in the embodiment of this application. [Figure 3b] This is a schematic diagram of the beam switching delay determination method provided in the embodiment of this application. [Figure 3c] This is a schematic diagram of the beam switching delay determination method provided in the embodiment of this application. [Figure 3d] This is a schematic diagram of the beam switching delay determination method provided in the embodiment of this application. [Figure 3e] This is a schematic diagram of the beam switching delay determination method provided in the embodiment of this application. [Figure 3f] It is a schematic diagram of a method for determining beam switching delay provided in an embodiment of the present application. [Figure 3g] It is a schematic diagram of a method for determining beam switching delay provided in an embodiment of the present application. [Figure 3h] It is a schematic diagram of a method for determining beam switching delay provided in an embodiment of the present application. [Figure 4] It is a block diagram of a device for determining beam switching delay provided in an embodiment of the present application. [Figure 5] It is a block diagram of a communication device provided in an embodiment of the present application. [Figure 6] It is a block diagram of a terminal provided in an embodiment of the present application.

Embodiments for Carrying Out the Invention

[0015] Hereinafter, 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 described. Naturally, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art also belong to the protection scope of the present application.

[0016] The terms "first", "second", etc. in the specification and claims of the present application are not for describing a specific order or sequence, but for distinguishing similar objects. It should be understood that such terms may be replaced with each other when appropriate so that the embodiments of the present application can be implemented in an order other than that illustrated or described here. Moreover, the objects distinguished by "first" and "second" usually belong to one category and do not limit the number of objects. For example, the first object may be one or more. Also, in the specification and claims, "and / or" represents at least one of the connected objects, and the symbol " / " generally represents that the related objects before and after are in an "or" relationship.

[0017] It should be noted that the technology described in the embodiments of this application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system. 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. The terms "system" and "network" in the embodiments of this application are often used interchangeably. The technology described can also be used in other systems and radio communication technologies in addition to the systems and radio technologies described above. In the following description, a New Radio (NR) system is described for illustrative purposes, and the NR term is used in many of the following descriptions. However, these technologies are also applicable to applications other than NR system applications, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0018] Figure 1 shows a block diagram of a wireless communication system that can be applied in the embodiment of this application. The wireless communication system includes a terminal 11 and network-side equipment 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 information terminal, 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, vehicle user equipment (VUE), pedestrian user equipment (PUE), a smart home (home devices with wireless communication capabilities such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a kiosk. Wearable devices include smartwatches, smart wristbands, smart earphones, smart glasses, smart accessories (smart bracelets, smart rings, smart necklaces, smart anklets, etc.), smart wristlets, smart wear, etc. It should be noted that the specific type of terminal 11 is not limited in the embodiments of this application. The network-side equipment 12 may include access network equipment or core network equipment, where the access network equipment 12 may be called wireless access network equipment, radio access network (RAN), wireless access network function, or wireless 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, and the base station may also be called a node B, an advanced 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 advanced B node, a transmitting and receiving point (TRP), or any other appropriate term in the art, and the base station is not limited to any particular technical term as long as the same technical effect can be achieved, and it should be noted that, although the embodiments of this application only use base stations in an NR system as examples, the specific type of base station is not limited.

[0019] The method for determining the beam switching delay provided in the embodiments of this application will be described in detail below with reference to the drawings, by several embodiments and their use cases.

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

[0021] In step 201, the terminal receives instruction information to specify a target beam, which includes a first beam and a second beam, each associated with two different cells.

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

[0023] When identifying a cell by PCI, associating the first beam with PCI means The first beam is directly associated with PCI, This may also be a clause relating the indirect quasi-co-location (QCL) source reference signal (RS) of the first beam to PCI.

[0024] When identifying cells by an Additional PCI index, the method for associating the first beam with an Additional PCI index is the same as the method for identifying it by PCI.

[0025] In step 202, when the terminal receives the instruction information, the switching delay of the target beam is determined according to the first predetermined rule.

[0026] Selectively, the first prescribed rule is: Extend the measurement time for Layer 1 (L1), Extending the time-frequency synchronization and automatic gain control (AGC) adjustment time, This includes at least one of the following: 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, by extending the L1 measurement time, or by extending the time-frequency synchronization and AGC adjustment time, or by extending the path loss estimation time.

[0028] In this embodiment, the terminal receives instruction information for designating target beams, including a first beam and a second beam, each associated with two different cells. Upon receiving the instruction information, the terminal determines the target beam switching delay according to a first predetermined rule. This method allows the terminal to determine the target beam switching delay when the two beams are associated with different cells, thereby ensuring the reliability of data transmission.

[0029] In one embodiment of this application, extending the L1 measurement time includes (1) and (2) below. (1) The L1 measurement time corresponding to the first beam is extended by a first predetermined value, and the first predetermined value is The period of the first RS, Priority of the 1st RS, This is determined by at least one of the priority levels of the cells associated with the first RS. The first predetermined value may be set in advance; for example, the first predetermined value may be the first coefficient of sharing. (2) The L1 measurement time corresponding to the second beam is extended by a second predetermined value, and the second predetermined value is The period of the first RS, Priority of the 1st RS, This is determined by at least one of the priority levels of the cells associated with the first RS. The second predetermined value may be set in advance; for example, the second predetermined value may be the second cohesive coefficient.

[0030] Extending the aforementioned path loss estimation time includes the following (1) and (2). (1) The path loss estimation time corresponding to the first beam is extended by a third predetermined value, and the third predetermined value is The period of the first RS, Priority of the 1st RS, This is determined by at least one of the priority levels of the cells associated with the first RS. The third predetermined value may be set in advance; for example, the third predetermined value may be the third cohesive coefficient. (2) The path loss estimation time corresponding to the second beam is extended by a fourth predetermined value, and the fourth predetermined value is The period of the first RS, Priority of the 1st RS, This is determined by at least one of the priority levels of the cells associated with the first RS. The fourth predetermined value may be set in advance; for example, the fourth predetermined value may be the fourth 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 this application, the target beam switching delay includes at least one of the following (1) to (5). (1) Reception and processing delay of 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 reference signal (QCL-Type A source RS) or a QCL-Type C source reference signal (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 and measurement estimation time of the first path loss reference signal (PL-RS). Of these, the measurement estimation time is the time required for the terminal to measure n PL-RS samples and perform smoothing filtering to obtain the path loss, and can be directly understood as the period of n × PL-RS, where n is a positive integer.

[0033] In one embodiment of this 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 that overlap in the time domain.

[0034] For example, if 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. If 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. If 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. If 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] Selectively, 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] Selectable, the cell related to the second RS is, Currently serving cell, A cell associated with one of the aforementioned target beams, This term includes one of the other cells, which are cells other than those associated with the serving cell and the target beam, respectively.

[0037] In one embodiment of this application, extending the time-frequency synchronization and AGC adjustment time includes extending the arrival time of the first RS received 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 a factor of U.

[0038] For example, if the arrival time of the first RS received after the terminal receives instruction information is t, then 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] Selectively, if at least two of the RSs 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 overlapping RSs 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 overlap in the time domain between the RS associated with the first beam and the RS associated with the second beam. For example, if the first beam is associated with the first QCL source RS and PL-RS, and the first QCL source RS and PL-RS are the same RS, and the second beam is associated with the second QCL source RS, and the first QCL source RS, PL-RS, and second QCL source RS overlap in the time domain, the number of overlapping RSs 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 between 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 between 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 one embodiment of this 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 the currently serving cell. For example, the first beam is associated with the currently serving cell and the second beam is associated with an adjacent cell of the currently serving cell, or the second beam is associated with the currently serving cell and the first beam is associated with an adjacent cell of the currently serving cell. (2) The RS values ​​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 this application, the RS associated with the first beam is The direct or indirect pseudo-collocation QCL source RS of the first beam, Includes at least one of the PL-RS associated with the first beam, Alternatively, the RS associated with the preceding 2nd beam is The direct or indirect QCL source RS of the second beam, It includes at least one of the PL-RS associated with the second beam.

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

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

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

[0046] In the embodiments of this application, RS, QCL source RS, and 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 method for determining the beam switching delay provided in this application will be explained with the following example.

[0048] In one implementation, the following are cases in which network-side devices indicate multiple DL TCI states related to different PCIs:

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

[0050] Case 1-1: As shown in Figure 3b, both DL TCI state #1 and DL TCI state #2 were known, meaning the terminal measured the corresponding beam.

[0051] Since L1 measurement is not required, the beam switching delay only needs to be considered as a relaxation of the time-frequency synchronization and AGC adjustment time based on the conventional switching delay, that is, the time requirement of the first SSB is relaxed. Specifically, as shown in Figure 3b, assuming that cell #1 has a higher 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. Therefore, 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), while the time-frequency synchronization and AGC adjustment time of DL TCI state #1 remains unchanged and is still the first SSB, where 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] While the L1 measurement time does not need to be considered for the switching delay of DL TCI state #1, it is necessary to consider the L1 measurement time for the switching delay of DL TCI state #2. Specifically, as shown in Figure 3c, assuming that cell #1 has a higher priority, DL TCI state #1 becomes active only after the terminal has completed the time-frequency synchronization and AGC adjustment of DL TCI state #1 based on SSB #x.

[0054] DL TCI state #2 requires waiting until the second SSB#y to perform time-frequency synchronization and AGC adjustment before it can be activated. In addition, it requires performing an L1 measurement on L1-RSRP to find the appropriate receiving beam (Rx beam). Considering that both SSB#x and SSB#y are used for L1 measurements and overlap in the time domain, the measurements must be staggered to relax the measurement time requirements. Assuming that SSB#x and SSB#y are measured at equal intervals of 1:1, as shown in Figure 3c, the L1 measurement times for SSB#x and SSB#y should be relaxed by a sharing factor of 2. Therefore, DL TCI state #2 cannot be activated until the L1 measurement time requirements have been met.

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

[0056] As shown in Figure 3d, the switching delays for DL ​​TCI state #1 and DL TCI state #2 both require consideration of time-frequency synchronization, AGC adjustment time, and L1 measurement time. This differs from Case 1-2 in that DL TCI state #1 must satisfy the L1 measurement requirement in addition to satisfying the time-frequency synchronization and AGC adjustment time requirements.

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

[0058] Case 2-1: Both DL TCI state #1 and DL TCI state #2 were known, meaning the terminal measured the corresponding beam.

[0059] Assuming that cell#1 has a higher priority, or that SSB#x has a higher priority, i.e., the larger the period of RS, the higher the priority, the terminal will first perform time-frequency synchronization and AGC adjustment for DL ​​TCI state#1 based on SSB#x, and then complete time-frequency synchronization and AGC adjustment for DL ​​TCI state#2 based on the second SSB#y. Therefore, the switching delay between DL TCI state#1 and DL TCI state#2 is the same as in Case 1-1.

[0060] Assuming that cell #2 has higher priority, the terminal first performs time-frequency synchronization and AGC adjustment for DL ​​TCI state #2 based on SSB #y, and then completes time-frequency synchronization and AGC adjustment for DL ​​TCI state #1 based on the second SSB #x, with the switching delay between the two beams 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 coherence coefficient. Because the periods of SSB#x and SSB#y are different, some of SSB#y overlaps with SSB#x. In such cases, the coherence coefficient of the L1 measurement time can be determined by the periods of SSB#x and SSB#y.

[0063] As shown in Figure 3g, RS with a larger period is measured preferentially, meaning that when SSB#y and SSB#x overlap, the terminal measures only SSB#x. In such cases, since all SSB#x perform L1 measurement, there is no need to relax the L1 measurement time requirement for SSB#x. However, since some SSB#y overlaps with SSB#x and therefore does not perform L1 measurement, the L1 measurement time for SSB#y needs to be relaxed according to the sharing coefficient = 1 / (1 - period of SSB#y / period of SSB#x), where " / " in the formula represents "÷".

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

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

[0066] In another implementation, the following are cases where network-side equipment indicates multiple UL TCI states related to different PCIs:

[0067] Network-side equipment indicates UL TCI state #1 associated with PCI #1 and UL TCI-state #2 associated with PCI #2, the RS associated with UL TCI state #1 and the RS associated with UL TCI state #2 overlap in the time domain, and the terminal does not maintain the PL-RS associated with UL TCI-state #1 and UL TCI-state #2. The QCL source RS (RS #1) directly or indirectly associated with UL TCI state #1 and the PL-RS (RS #2) associated with UL TCI state #1 may be the same or different. The QCL source RS (RS #3) directly or indirectly associated with UL TCI state #2 and the PL-RS (RS #4) associated with UL TCI state #2 may be the same or different.

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

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

[0070] Since L1 measurement is not required, the beam switching delay only needs to be considered based on the conventional switching delay, meaning that the time requirements for sampling estimation of the first PL-RS and subsequent PL-RS are relaxed. The specific relaxation forms include the following two types.

[0071] Based on PL-RS priority or cell priority, the terminal first completes the path loss estimation for UL TCI state #1 based on sampling of PL-RS related to UL TCI state #1 and subsequent N-1 PL-RS. Then, it completes the path loss estimation for UL TCI state #2 by sampling of PL-RS related to UL TCI state #2 and subsequent N-1 PL-RS. In such cases, the path loss estimation time corresponding to TCI state #2 can be relaxed according to a sharing factor of 2.

[0072] 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 sequence to estimate path loss. In such cases, it is necessary to relax the path loss estimation time corresponding to TCI state #1 and TCI state #2 according to the 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 for UL TCI state #2 requires additional consideration of the L1 measurement time. The 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 requires additional consideration of the L1 measurement time. The specific switching delay requirements are shown in Table 2 below.

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

[0079] Case 4: The periods of RS associated with UL TCI state #1 and RS associated with UL TCI state #2 are different, meaning 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 L1 measurement is not required, the beam switching delay only needs to be considered as a relaxation of the path loss estimation time based on the conventional switching delay, i.e., the time requirement for sampling estimation of the first PL-RS and subsequent PL-RS is relaxed. Because the periods of RS#2 and RS#4 are different, some RS#2 overlaps with RS#4. In such cases, 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 that of 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 cases, since the terminal performs path loss estimation based on any of the previous N RS#2 values, the path loss estimation time requirement based on RS#2 does not need to be relaxed, i.e., the sharing factor = 1. Also, since some RS#4 values ​​overlap with RS#2, path loss estimation is not performed, so the path loss estimation based on RS#4 needs to be relaxed according to the 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 to Case 4-1, the switching delay of UL TCI state #2 in Case 4-2 requires further consideration of 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. The 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] The network-side device simultaneously indicates DL TCI state #1 associated with PCI #1 and UL TCI-state #2 associated with PCI #2, the RS (RS #1) associated with DL TCI state #1 and the RS associated with UL TCI state #2 overlap in the time domain, and the terminal does not maintain the PL-RS associated with UL TCI state #2. The QCL source RS (RS #2) directly or indirectly associated with UL TCI state #2 and the PL-RS (RS #3) associated with UL TCI state #2 may be the same or different.

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

[0091] Case 5-1: Both DL TCI state #1 and UL TCI state #2 are known. (1) The terminal maintains the PL-RS associated with UL TCI state #2. There is no need to mitigate the switching delay requirements 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 overlap. (21) The time-frequency synchronization and AGC adjustment time based on RS#1 is extended, i.e., the time to wait for the first RS#1. The waiting time for the N+1th RS#1 is extended, but the path loss estimation time for UL TCI state#2 is not extended. The waiting time for the second RS#1 is extended, and the N-1 sampling time based on RS#3 in the path loss estimation time for UL TCI state#2 is extended to the time for N sampling based on RS#3. (22) Extend the waiting time for the first RS#3 in the path loss estimation time of UL TCI state #2 to the waiting time for the second RS#3, or to twice the waiting time for the first RS#3. There is no need to mitigate the switching delay of 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] Because RS#1 and RS#2 overlap, it is necessary to adjust the time-frequency synchronization and AGC adjustment time for DL ​​TCI state#1 and the L1 measurement time corresponding to UL TCI state#2, specifically as follows: Without extending the time-frequency synchronization and AGC adjustment time for DL ​​TCI state #1, the L1 measurement time corresponding to UL TCI state #2 is extended by the time it takes to wait for the first RS #2. Without extending the L1 measurement time corresponding to UL TCI state #2, the time-frequency synchronization and AGC adjustment time for DL ​​TCI state #1 are extended by the same amount as 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 adjust the time-frequency synchronization, AGC adjustment time, and L1 measurement time for DL ​​TCI state#1, as well as the L1 measurement time corresponding to UL TCI state#2, specifically 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. Alternatively, the switching delay of UL TCI state #2 may be further extended by the time it takes to wait for the first RS #2, or by the period of one RS #2.

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

[0102] For the DL TCI state #1 switching delay request, at least the relaxation of time-frequency synchronization, AGC adjustment time, and L1 measurement time should be considered. For the UL TCI state #2 switching delay request, at least the relaxation of path loss estimation time and L1 measurement time should be considered. Specifically, this is shown in Table 6.

[0103] [Table 6]

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

[0105] Case 6-1: Both DL TCI state #1 and UL TCI state #2 are known. (1) The terminal maintains the PL-RS associated with UL TCI state #2. There is no need to mitigate the switching delay requirements 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) The time-frequency synchronization and AGC adjustment time based on RS#1 is extended, i.e., 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 the length of the waiting time, and the time for N-1 sampling based on RS#3 in the path loss estimation time of UL TCI state#2 is extended to the time for N sampling based on RS#3. (22) Extend the waiting time for the first RS#3 in the path loss estimation time of UL TCI state #2 to the waiting time for the second RS#3, or to twice the waiting time for the first RS#3. There is no need to mitigate the switching delay of 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] This is the 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 adjust the time-frequency synchronization, AGC adjustment time, and L1 measurement time for DL ​​TCI state#1, as well as the L1 measurement time corresponding to UL TCI state#2, specifically 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. Alternatively, the switching delay of UL TCI state #2 may be further extended by the time it takes to wait for the first RS#2, or by the period of one RS#2.

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

[0116] For the DL TCI state #1 switching delay request, at least the relaxation of time-frequency synchronization, AGC adjustment time, and L1 measurement time should be considered. For the UL TCI state #2 switching delay request, at least the relaxation of path loss estimation time and L1 measurement time should be considered. Specifically, this is as shown in Table 8 below.

[0117] [Table 8]

[0118] The present invention provides a method for determining beam switching delays, which enables terminals to clearly determine and accurately apply the activation time of corresponding beams when a network directs multiple beams associated with different cells to perform data scheduling and transmission, thereby ensuring transmission reliability. The beam switching delay determination method provided in this application is preferably applied in high-speed moving scenarios.

[0119] The beam switching delay determination method provided in the embodiments of this application may be implemented by a beam switching delay determination device. In the embodiments of this application, the beam switching delay determination device provided in the embodiments of this application will be described as an example in which the beam switching delay determination device performs the beam switching delay determination method.

[0120] As shown in Figure 4, the embodiment of this application is A receiving module 401 is used to receive instruction information for indicating a target beam, which includes a first beam and a second beam, each associated with two different cells, The present invention provides a beam switching delay determination device comprising a determination module 402 used to determine the target beam switching delay in accordance with a first predetermined rule when the aforementioned instruction information is received.

[0121] Selectively, the first prescribed rule is: Extending the Layer L1 measurement time, Extending the time-frequency synchronization and AGC adjustment time, This includes at least one of the following: extending the path loss estimation time.

[0122] Extending the L1 measurement time is optional. The L1 measurement time corresponding to the first beam is extended by a first predetermined value, This includes extending the L1 measurement time corresponding to the second beam by a second predetermined value, Extending the aforementioned path loss estimation time means The path loss estimation time corresponding to the first beam is extended by a third predetermined value, This includes extending the path loss estimation time corresponding to the second beam by a fourth predetermined value.

[0123] Selectable, the first predetermined value is Period of the first reference signal RS, Priority of the 1st RS, Determined by at least one of the priority levels of the cells associated with the first RS, Or, The second predetermined value is, The period of the first RS, Priority of the 1st RS, Determined by at least one of the priority levels of the cells associated with the first RS, Or, The third predetermined value is, The period of the first RS, Priority of the 1st RS, Determined by at least one of the priority levels of the cells associated with the first RS, Or, The fourth predetermined value is, The period of the first RS, Priority of the 1st RS, This is determined by at least one of the priority levels of the cells associated with the first RS.

[0124] Selectively, if 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 that overlap in the time domain.

[0125] Selectively extending the time-frequency synchronization and AGC adjustment time includes extending the arrival time of the first RS received after the instruction information has been received, and extending the arrival time of the first RS means extending the arrival time of the first RS by a factor of U.

[0126] Selectively, if at least two of the RSs 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 overlapping RSs in the time domain, and U is a positive integer less than or equal to K.

[0127] Selectively, the first beam and the second beam are, The first beam or the second beam is associated with the current serving cell of the terminal, The RS values ​​associated with the first beam and the second beam overlap in the time domain, The RS and the second RS associated with the first beam overlap in the time domain, At least one of the following is satisfied: the RS associated with the second beam and the second RS overlap in the time domain.

[0128] Selectable, the cell related to the second RS is, The current serving cell of the aforementioned terminal, A cell associated with one of the aforementioned target beams, This term includes one of the other cells, which are cells other than those associated with the current serving cell and the target beam, respectively.

[0129] Selectively, the second RS is a beam fault 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] Selectively, the RS associated with the first beam is The direct or indirect pseudo-collocation QCL source RS of the first beam, The first beam includes at least one of the path loss reference signals PL-RS, Alternatively, the RS associated with the preceding 2nd beam is The direct or indirect QCL source RS of the second beam, It includes at least one of the PL-RS associated with the second beam.

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

[0132] Selectable, the instruction information is Spatial relationship identifier, It includes at least one of the transmission setting instruction TCI status identifiers.

[0133] Selectively, the switching delay of the target beam is Reception and processing delay of the aforementioned instruction information, Hybrid Auto-Retransmission Request (HARQ) Delay, L1 measurement time, Time-frequency synchronization and AGC adjustment time, It includes at least one of the path loss estimation times.

[0134] Selectively, the decision module 402 is used to determine the target beam switching delay based on the first switching delay and according to a first predetermined rule when it receives the instruction information.

[0135] Selectively, the first switching delay is determined by the protocol specification.

[0136] The beam switching delay determination device in the embodiments of this application may be an electronic device, such as an electronic device equipped with an operating system, or a component of the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other device. Exemplarily, the terminal may include, but is not limited to, the types of terminals 11 listed above, and other devices may be a server, network attached storage (NAS), etc. The embodiments of this application are not specifically limited.

[0137] The beam switching delay determination device provided in the embodiment of this application can realize each step realized in the method embodiment of Figure 2 and achieve the same technical effects, and a detailed explanation is omitted here to avoid repetition.

[0138] Selectively, as shown in Figure 5, an embodiment of the present application further provides a communication device 500 comprising a processor 501 and a memory 502 for storing a program or command executable by the processor 501, for example, when the communication device 500 is a terminal, the program or command is executed by the processor 501, thereby realizing each step of the embodiment of the beam switching delay determination method and achieving the same technical effect.

[0139] Embodiments of this application further provide a terminal comprising a processor and a communication interface, wherein the processor is used to determine the switching delay of the target beam according to a first predetermined rule when it receives the instruction information, 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. Embodiments of this terminal correspond to embodiments of the terminal-side method described above, and each implementation step and realization form of the embodiment of the method described above can be applied to embodiments of this terminal and achieve the same technical effects. Specifically, Figure 6 is a schematic diagram of the hardware configuration of a terminal realizing an embodiment of this application.

[0140] The terminal 600 may include, but is not limited to, at least some of the elements such as a high-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 those skilled in the art will understand, the terminal 600 may further include a power supply (e.g., a battery) to power each component, and the power supply is logically connected to the processor 610 via a power management system, and the power management system can further implement functions such as charge / discharge management and power consumption management. The configuration of the terminal shown in Figure 6 is not limiting to the terminal, and the terminal may include more or fewer components than shown, or combinations of some components, or different component arrangements, and a detailed explanation is omitted here.

[0142] In the embodiments of this application, it should be understood that the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042 that process still images or video image data acquired by an image capture device (e.g., a camera) in video capture mode or 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, 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. Other input devices 6072 may include, but are not limited to, a physical keyboard, function buttons (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, or an operating lever. A detailed explanation is omitted here.

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

[0144] Memory 609 can be used to store software programs or commands and various data. Memory 609 may mainly include a first storage area capable of storing an operating system, applications or commands necessary for at least one function (e.g., audio playback function, image playback function, etc.), and a second storage area for storing data. Memory 609 may also include volatile memory or non-volatile memory, or it may include both volatile and non-volatile memory. Here, non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or 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). The memory 609 in the embodiments of this application includes, but is not limited to, these memories and any other suitable type of memory.

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

[0146] Here, the high-frequency unit 601 is used to receive instruction information for indicating a target beam, which includes a first beam and a second beam, each associated with two different cells.

[0147] When the processor 610 receives the instruction information, it is used to determine the switching delay of the target beam in accordance with a first predetermined rule.

[0148] Selectively, the first prescribed rule is: Extending the Layer L1 measurement time, Extending the time-frequency synchronization and AGC adjustment time, This includes at least one of the following: extending the path loss estimation time.

[0149] Extending the L1 measurement time is optional. The L1 measurement time corresponding to the first beam is extended by a first predetermined value, This includes extending the L1 measurement time corresponding to the second beam by a second predetermined value, Extending the aforementioned path loss estimation time means The path loss estimation time corresponding to the first beam is extended by a third predetermined value, This includes extending the path loss estimation time corresponding to the second beam by a fourth predetermined value.

[0150] Selectable, the first predetermined value is Period of the first reference signal RS, Priority of the 1st RS, Determined by at least one of the priority levels of the cells associated with the first RS, Or, The second predetermined value is, The period of the first RS, Priority of the 1st RS, Determined by at least one of the priority levels of the cells associated with the first RS, Or, The third predetermined value is, The period of the first RS, Priority of the 1st RS, Determined by at least one of the priority levels of the cells associated with the first RS, Or, The fourth predetermined value is, The period of the first RS, Priority of the 1st RS, This is determined by at least one of the priority levels of the cells associated with the first RS.

[0151] Selectively, if 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 that overlap in the time domain.

[0152] Selectively extending the time-frequency synchronization and AGC adjustment time includes extending the arrival time of the first RS received after the instruction information has been received, and extending the arrival time of the first RS means extending the arrival time of the first RS by a factor of U.

[0153] Selectively, if at least two of the RSs 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 overlapping RSs in the time domain, and U is a positive integer less than or equal to K.

[0154] Selectively, the first beam and the second beam are, The first beam or the second beam is associated with the current serving cell of the terminal, The RS values ​​associated with the first beam and the second beam overlap in the time domain, The RS and the second RS associated with the first beam overlap in the time domain, At least one of the following is satisfied: the RS associated with the second beam and the second RS overlap in the time domain.

[0155] Selectable, the cell related to the second RS is, The current serving cell of the aforementioned terminal, A cell associated with one of the aforementioned target beams, This term includes one of the other cells, which are cells other than those associated with the current serving cell and the target beam, respectively.

[0156] Selectively, the second RS is, This is the beam fault detection reference signal BFD-RS, the candidate beam detection reference signal CBD-RS, the wireless link monitor reference signal RLM-RS, or the RS for L1 measurement.

[0157] Selectively, the RS associated with the first beam is The direct or indirect pseudo-collocation QCL source RS of the first beam, The first beam includes at least one of the path loss reference signals PL-RS, Alternatively, the RS associated with the preceding 2nd beam is The direct or indirect QCL source RS of the second beam, It includes at least one of the PL-RS associated with the second beam.

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

[0159] Selectable, the instruction information is Spatial relationship identifier, It includes at least one of the transmission setting instruction TCI status identifiers.

[0160] Selectively, the switching delay of the target beam is Reception and processing delay of the aforementioned instruction information, Hybrid Auto-Retransmission Request (HARQ) Delay, L1 measurement time, Time-frequency synchronization and AGC adjustment time, It includes at least one of the path loss estimation times.

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

[0162] Selectively, the first switching delay is determined by the protocol specification.

[0163] The terminal provided in the embodiment of this application can perform each step realized in the method embodiment shown in Figure 2 and achieve the same technical effects, and a detailed explanation is omitted here to avoid repetition.

[0164] The embodiments of this application provide a readable storage medium for storing a program or command, which, when executed by a processor, realizes each step of the embodiment of the beam switching delay determination method described above and achieves the same technical effect. A detailed explanation is omitted here to avoid redundancy.

[0165] Here, the processor is the processor in the terminal described in 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] The embodiment of this application provides a chip comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor executes a program or command to realize each step of the beam switching delay determination embodiment, and can achieve the same technical effects. A detailed explanation is omitted here to avoid redundancy.

[0167] It should be understood that the chips referred to in the embodiments of this application may also be called system-level chips, system chips, chip systems, or system-on-a-chip, etc.

[0168] The embodiments of this application provide a computer program product stored on a storage medium that is executed by at least one processor to implement each step of the embodiment of the beam switching delay determination method described above, and to achieve the same technical effects. Detailed explanations are omitted here to avoid redundancy.

[0169] Embodiments of this application further provide a communication system comprising a terminal and network-side equipment that can be used to perform the steps of the beam switching delay determination method described above.

[0170] It should be noted that, in this specification, the terms “including,” “consisting of,” or any other variation thereof are intended to include non-exclusive inclusion, thereby meaning that a process, method, article, or apparatus containing a set of elements includes not only those elements but also other elements not explicitly stated, or elements specific to such process, method, article, or apparatus. Unless otherwise specified, an element limited by the phrase “including one…” does not preclude the existence of other identical elements in a process, method, article, or apparatus containing that element. It should also be noted that the scope of the methods and apparatus in embodiments of this application is not limited to performing functions in the order illustrated or discussed, but may also include performing functions substantially simultaneously or in reverse order depending on the function, for example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described by reference to one example may be combined in other examples.

[0171] From the above description of the embodiments, it will be clear to those skilled in the art that the methods of the above embodiments can be implemented in the form of a combination of software and a necessary common hardware platform, although they may, of course, be implemented in 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 implemented substantially or in part 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 plurality of commands that cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods of each embodiment of the present application.

[0172] Although embodiments of this application have been described above with reference to the drawings, this application is not limited to the above-described specific embodiments. The above-described specific embodiments are merely illustrative and not limiting. Many forms that a person skilled in the art could make based on the suggestions of this application without departing from the spirit of this application and the scope of protection of the claims are all within the scope of protection of this application.

Claims

1. The terminal receives instruction information to indicate a target beam, which includes a first beam and a second beam, each associated with two different cells. When the terminal receives the instruction information, the terminal determines the switching delay of the target beam in accordance with the first predetermined rule. Includes, The first beam and the second beam are A method for determining a beam switching delay that satisfies the condition that the RS values ​​associated with the first beam and the second beam overlap in the time domain.

2. The aforementioned first prescribed rule is: Extend the Layer L1 measurement time, Extending the time-frequency synchronization and automatic gain control (AGC) adjustment time, Extending the path loss estimation time, The method according to claim 1, comprising at least one of the following.

3. Extending the L1 measurement time means The L1 measurement time corresponding to the first beam is extended by a first predetermined value, wherein the first predetermined value is determined by at least one of the period of the RS associated with the first beam, the priority of the RS associated with the first beam, and the priority of the cell associated with the RS associated with the first beam. The L1 measurement time corresponding to the second beam is extended by a second predetermined value, wherein the second predetermined value is determined by at least one of the period of the RS associated with the second beam, the priority of the RS associated with the second beam, and the priority of the cell associated with the RS associated with the second beam. Includes, Extending the aforementioned path loss estimation time means The path loss estimation time corresponding to the first beam is extended by a third predetermined value, wherein the third predetermined value is determined by at least one of the period of the RS associated with the first beam, the priority of the RS associated with the first beam, and the priority of the cell associated with the RS associated with the first beam. The path loss estimation time corresponding to the second beam is extended by a fourth predetermined value, wherein the fourth predetermined value is determined by at least one of the period of the RS associated with the second beam, the priority of the RS associated with the second beam, and the priority of the cell associated with the RS associated with the second beam. Includes, The RS associated with the first beam includes at least one of the direct or indirect pseudo-collocation QCL source RS of the first beam and the path loss reference signal PL-RS associated with the first beam. The method according to claim 2, wherein the RS associated with the second beam includes at least one of the direct or indirect QCL source RS of the second beam and the PL-RS associated with the second beam.

4. The method according to claim 2, wherein extending the time-frequency synchronization and AGC adjustment time includes extending the arrival time of the first RS received after receiving the instruction information, and extending the arrival time of the first RS is to extend the arrival time of the first RS by a factor of U.

5. The method according to claim 4, wherein U is a positive integer less than or equal to K, and the value of K is the number of overlapping RSs in the time domain.

6. The first beam and the second beam are further, The method according to claim 1, wherein the first beam or the second beam is related to the current serving cell of the terminal.

7. The method according to claim 1, wherein the instruction information is carried by one or more beam switching signaling.

8. The instruction information is, Spatial relationship identifier, Transmission setting instruction TCI status identifier The method according to claim 1, comprising at least one of the following.

9. The switching delay of the aforementioned target beam is Reception and processing delay of the aforementioned instruction information, Hybrid automatic retransmission request HARQ delay, L1 measurement time, Time-frequency synchronization and AGC adjustment time, Path loss estimation time The method according to claim 1, comprising at least one of the following.

10. When the terminal receives the instruction information, the step of determining the target beam switching delay in accordance with the first predetermined rule is: The method according to claim 1, further comprising the step of determining the switching delay of the target beam in accordance with a first predetermined rule based on the first switching delay when the terminal receives the instruction information.

11. The method according to claim 10, wherein the first switching delay is determined by the protocol specification.

12. A terminal comprising a processor and a memory for storing a program or command executable by the processor, wherein when the program or command is executed by the processor, the method for determining the beam switching delay described in any one of claims 1 to 11 is realized.

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