Method, apparatus and terminal for determining beam switching delay

Abstract

The application discloses a method and device for determining beam switching delay and a terminal, and belongs to the technical field of communication. The method for determining beam switching delay comprises the following steps: a terminal receives indication information, the indication information is used for indicating a target beam, the target beam comprises a first beam and a second beam, and the first beam and the second beam are respectively associated with two different cells; and in the case that the terminal receives the indication information, a switching delay of the target beam is determined according to a first preset rule.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and specifically relates to a method, apparatus and terminal for determining beam switching delay. Background Technology

[0002] Terminals use target beams for data transmission and reception, and the reference signals associated with the target beams must be measured before they can properly use the target beams for receiving and / or transmitting data. In existing technologies, when network-side equipment activates multiple Transmission Configuration Indicator (TCI) states associated with different cells, the terminal cannot simultaneously measure the reference signals of multiple cells. Therefore, there is no solution for how the terminal determines the handover delay of multiple target beams associated with different cells, affecting the reliability of data transmission. Summary of the Invention

[0003] This application provides a method, apparatus, and terminal for determining beam switching delay, which can solve the problem of low data transmission reliability of the terminal when the network-side equipment activates the TCI states of multiple associated cells.

[0004] Firstly, a method for determining beam switching delay is provided, the method comprising:

[0005] The terminal receives indication information, which is used to indicate a target beam. The target beam includes a first beam and a second beam, and the first beam and the second beam are respectively associated with two different cells.

[0006] When the terminal receives the instruction information, the switching delay of the target beam is determined according to the first preset rule.

[0007] Secondly, a device for determining beam switching delay is provided, the device comprising:

[0008] A receiving module is used to receive indication information, the indication information being used to indicate a target beam, the target beam including a first beam and a second beam, the first beam and the second beam being associated with two different cells respectively;

[0009] The determination module is used to determine the switching delay of the target beam according to a first preset rule when the indication information is received.

[0010] Thirdly, a terminal is provided, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method described in the first aspect.

[0011] Fourthly, a terminal is provided, including a processor and a communication interface, wherein the processor is used to determine the switching delay of the target beam according to a first preset rule when receiving the indication information, and the communication interface is used to receive the indication information, the indication information being used to indicate the target beam, the target beam including a first beam and a second beam, the first beam and the second beam being associated with two different cells respectively.

[0012] Fifthly, a communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method described in the first aspect.

[0013] In a sixth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0014] In a seventh aspect, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the first aspect.

[0015] Eighthly, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to perform the steps of the method as described in the first aspect.

[0016] In this embodiment, the terminal receives indication information, which indicates a target beam. The target beam includes a first beam and a second beam, which are associated with two different cells. Upon receiving the indication information, the terminal determines the handover delay of the target beam according to a first preset rule. This method enables the terminal to determine the handover delay of the target beam even when two beams are associated with different cells, thereby ensuring the reliability of data transmission. Attached Figure Description

[0017] Figure 1 This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0018] Figure 2 This is a flowchart of the method for determining beam switching delay provided in an embodiment of this application;

[0019] Figures 3a-3h This is a schematic diagram of the beam switching delay determination method provided in the embodiments of this application;

[0020] Figure 4 This is a structural diagram of the beam switching delay determination device provided in the embodiments of this application;

[0021] Figure 5 This is a structural diagram of the communication device provided in the embodiments of this application;

[0022] Figure 6 This is a structural diagram of the terminal provided in the embodiments of this application. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0024] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0026] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment 12 may also be referred to as radio access network equipment, radio access network (RAN), radio access network function, or radio access network unit. Access network equipment 12 may include base stations, WLAN access points, or WiFi nodes, etc. Base stations may be referred to as Node B, evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B node, home evolved B node, Transmitting Receiving Point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for description, and the specific type of base station is not limited.

[0027] The method for determining beam switching delay provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0028] like Figure 2 As shown in the figure, this application provides a method for determining beam switching delay, including the following steps:

[0029] Step 201: The terminal receives indication information, which is used to indicate a target beam. The target beam includes a first beam and a second beam, and the first beam and the second beam are respectively associated with two different cells.

[0030] Cells can be identified using a Physical Cell Identifier (PCI) or an AdditionalPCI index. The target beam may include other beams besides the first and second beams; this is not limited here.

[0031] When the cell is identified by PCI, the first beam-associated PCI can be one of the following:

[0032] The first beam is directly associated with PCI;

[0033] The first beam indirect quasi-co-location (QCL) source reference signal (RS) is associated with PCI;

[0034] When the cell is identified by AdditionalPCIindex, the way the first beam is associated with AdditionalPCIindex is the same as the way it is identified by PCI.

[0035] Step 202: When the terminal receives the instruction information, determine the switching delay of the target beam according to the first preset rule.

[0036] Optionally, the first preset rule includes at least one of the following:

[0037] Measurement time for extended layer 1 (L1);

[0038] Extend the time-frequency synchronization and AGC adjustment time;

[0039] Extend the path loss estimation time.

[0040] The terminal can determine the switching delay of the beams in the target beam according to a first preset rule. For example, it can determine the switching delay of the beams in the target beam 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.

[0041] In this embodiment, the terminal receives indication information, which indicates a target beam. The target beam includes a first beam and a second beam, which are associated with two different cells. Upon receiving the indication information, the terminal determines the handover delay of the target beam according to a first preset rule. This method enables the terminal to determine the handover delay of the target beam even when two beams are associated with different cells, thereby ensuring the reliability of data transmission.

[0042] In one embodiment of this application, extending the L1 measurement time includes:

[0043] (1) The L1 measurement time corresponding to the first beam is extended according to a first preset value, which is determined according to at least one of the following:

[0044] The first RS period;

[0045] The priority of the first RS;

[0046] The priority of the cell associated with the first RS.

[0047] The first preset value can be set in advance; for example, the first preset value can be the first sharing factor.

[0048] (2) The L1 measurement time corresponding to the second beam is extended according to a second preset value, which is determined according to at least one of the following:

[0049] The first RS period;

[0050] The priority of the first RS;

[0051] The priority of the cell associated with the first RS.

[0052] The second preset value can be set in advance; for example, the second preset value can be the second sharing factor.

[0053] The extended path loss estimation time includes:

[0054] (1) The path loss estimation time corresponding to the first beam is extended according to a third preset value; the third preset value is determined according to at least one of the following:

[0055] The first RS period;

[0056] The priority of the first RS;

[0057] The priority of the cell associated with the first RS.

[0058] The third preset value can be set in advance; for example, the third preset value can be the third sharing factor.

[0059] (2) The path loss estimation time corresponding to the second beam is extended according to a fourth preset value; the fourth preset value is determined according to at least one of the following:

[0060] The first RS period;

[0061] The priority of the first RS;

[0062] The priority of the cell associated with the first RS.

[0063] The fourth preset value can be set in advance; for example, the fourth preset value can be the fourth sharing factor.

[0064] The first, second, third, and fourth preset values ​​can be the same or different.

[0065] In one embodiment of this application, the target beam switching delay includes at least one of the following:

[0066] (1) The delay in receiving and processing the indication information;

[0067] (2) Hybrid Automatic Repeat Request (HARQ) latency;

[0068] (3) L1 measurement time;

[0069] (4) Time and frequency synchronization and AGC adjustment time, for example, includes the arrival time of the first RS and the processing time of the first RS, wherein the first RS is a QCL-Type A source RS or a QCL-Type C source RS in the target beam.

[0070] (5) Path loss estimation time, for example, includes the arrival time of the first path loss reference signal (PL-RS) and the measurement estimation time. The measurement estimation time refers to the time required for the terminal to measure n PL-RS samples and obtain the path loss through smoothing filtering, which can be directly understood as n multiplied by the period of the PL-RS, where n is a positive integer.

[0071] In one embodiment of this application, when at least two of the first beam-associated RS, the second beam-associated RS, and the second RS overlap in the time domain, the first RS includes at least one of the first beam-associated RS, the second beam-associated RS, and the second RS among the time-domain overlapping RSs.

[0072] For example, if the first beam-associated RS and the second beam-associated RS overlap in the time domain, then the first RS includes the first beam-associated RS and / or the second beam-associated RS; if the first beam-associated RS and the second RS overlap in the time domain, then the first RS includes the first beam-associated RS and / or the second RS; if the second beam-associated RS and the second RS overlap in the time domain, then the first RS includes the second beam-associated RS and / or the second RS; if the first beam-associated RS, the second beam-associated RS, and the second RS overlap in the time domain, then the first RS includes at least one of the first beam-associated RS, the second beam-associated RS, and the second RS.

[0073] 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 used for L1 measurement.

[0074] Optionally, the cell associated with the second RS includes one of the following:

[0075] Currently serving residential community;

[0076] One of the target beams is associated with a cell;

[0077] Other cells, which are cells other than the currently serving cell and the cells associated with each beam in the target beam.

[0078] In one embodiment of this application, the extended time-frequency synchronization and AGC adjustment time includes extending the arrival time of the first RS received by the terminal after receiving the indication information, wherein extending the arrival time of the first RS is to extend the arrival time of the first RS by a factor of U.

[0079] For example, if the arrival time of the first RS received by the terminal after receiving the 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.

[0080] Optionally, if at least two of the first beam-associated RS, the second beam-associated RS, and the second RS overlap in the time domain, the value of K is the number of RSs with time-domain overlap, and U is a positive integer less than or equal to K.

[0081] For example, if the RS associated with the first beam and the RS associated with the second beam overlap in the time domain, then the value of K is the number of RSs that overlap in the time domain. For instance, if the first beam associates the first QCL source RS and the PL-RS, and the first QCL source RS and the PL-RS are the same RS, and the second beam associates the second QCL source RS, and the first QCL source RS, the PL-RS, and the second QCL source RS overlap in the time domain, then the number of RSs that overlap in the time domain is 2; if the RS associated with the first beam... If S and the second RS overlap in the time domain, then K is the number of RSs that overlap in the time domain among the first beam-associated RS and the second RS; if the second beam-associated RS and the second RS overlap in the time domain, then K is the number of RSs that overlap in the time domain among the second beam-associated RS and the second RS; if the first beam-associated RS, the second beam-associated RS, and the second RS overlap in the time domain, then K is the number of RSs that overlap in the time domain among the first beam-associated RS, the second beam-associated RS, and the second RS.

[0082] In one embodiment of this application, the first beam and the second beam satisfy at least one of the following:

[0083] (1) The first beam or the second beam is associated with the current serving cell. For example, the first beam is associated with the current serving cell and the second beam is associated with the neighboring cells of the current serving cell, or the second beam is associated with the current serving cell and the first beam is associated with the neighboring cells of the current serving cell.

[0084] (2) The RS associated with the first beam and the second beam overlap in the time domain;

[0085] (3) The RS associated with the first beam overlaps with the RS associated with the second beam in the time domain;

[0086] (4) The RS associated with the second beam overlaps with the second RS in the time domain.

[0087] In one embodiment of this application, the RS associated with the first beam includes at least one of the following:

[0088] The direct or indirect quasi-co-located QCL source RS of the first beam;

[0089] The PL-RS associated with the first beam;

[0090] Alternatively, the RS associated with the second beam may include at least one of the following:

[0091] The direct or indirect QCL source RS of the second beam;

[0092] The second beam-associated PL-RS.

[0093] In one embodiment of this application, the indication information is carried in one or more beam switching signaling messages. The beam switching indication signaling message may be: Radio Resource Control (RRC), Media Access Control Control Element (MAC CE), or Downlink Control Information (DCI), etc.

[0094] The instruction information includes at least one of the following:

[0095] Spatial relation identifier;

[0096] TCI state identifier. The TCI state can be Joint TCI, Downlink (DL) TCI state, Uplink (UL) TCI state, or TCI state in related technologies.

[0097] In one embodiment of this application, when the terminal receives the indication information, determining the switching delay of the target beam according to a first preset rule includes:

[0098] Upon receiving the indication information, the terminal determines the switching delay of the target beam according to a first preset rule based on the first switching delay. The first switching delay is determined according to the protocol agreement.

[0099] In the embodiments of this application, RS, QCL source RS, and PL-RS can be a Synchronization Signal Block (SSB), a Channel State Information Reference Signal (CSI-RS), or a Sounding Reference Signal (SRS).

[0100] The following example illustrates the method for determining beam switching delay provided in this application.

[0101] In one implementation, the network-side device indicates the status of multiple DL TCIs associated with different PCIs.

[0102] Scenario 1: The network-side device simultaneously indicates 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, such as... Figure 3a As shown, SSB#x and SSB#y have the same period, meaning that the two reference signals completely overlap in the time domain.

[0103] Case 1-1, such as Figure 3b As shown, both DL TCI state#1 and DL TCI state#2 are known, meaning that the terminal has measured the corresponding beam.

[0104] Since L1 measurement is not required, the beam switching delay, based on the traditional switching delay, only needs to consider relaxing the time-frequency synchronization and AGC adjustment time, i.e., relaxing the time requirement for the first SSB. Specifically, as follows... Figure 3b As shown, assuming 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, still being the first SSB, where the first SSB is the time-frequency synchronization and AGC adjustment time determined based on the first SSB#x.

[0105] In cases 1-2, DL TCI state #1 is known, and DL TCI state #2 is unknown.

[0106] The switching latency of DL TCI state #1 does not require consideration of L1 measurement time, while the switching latency of DL TCI state #2 does require consideration of L1 measurement time. For details, see below. Figure 3c As shown, assuming 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 DL TCI state #1 takes effect.

[0107] DL TCI state #2, besides needing to wait for the second SSB #y to perform time-frequency synchronization and AGC adjustment, also requires L1 measurement of L1-RSRP to find a suitable receiving beam (Rx beam) before it can take effect. Considering that SSB #x and SSB #y are both used for L1 measurement and overlap in the time domain, the measurements need to be staggered, relaxing the measurement time requirements. Figure 3c As shown, assuming SSB#x and SSB#y are measured at 1:1 equal intervals, the L1 measurement times for SSB#x and SSB#y should be relaxed according to a sharing factor of 2. Therefore, DL TCI state #2 will only take effect after the L1 measurement time requirements are met.

[0108] In cases 1-3, both DL TCI state #1 and DL TCI state #2 are unknown.

[0109] like Figure 3d As shown, the switching delays for both DL TCI state #1 and DL TCI state #2 need to consider time-frequency synchronization, AGC adjustment time, and L1 measurement time. Compared to cases 1-2, the difference is that DL TCI state #1, in addition to meeting the time-frequency synchronization and AGC adjustment time requirements, also needs to meet the L1 measurement requirements.

[0110] Case 2, such as Figure 3e As shown, SSB#x and SSB#y have different periods, meaning that the two reference signals partially overlap in the time domain.

[0111] Case 2-1: Both DL TCI state #1 and DL TCI state #2 are known, meaning the terminal has measured the corresponding beam.

[0112] Assuming cell#1 has a higher priority, or SSB#x has a higher priority (i.e., the larger the RS period, the higher the priority), the terminal first performs time-frequency synchronization and AGC adjustment for DL ​​TCI state#1 based on SSB#x, and then completes time-frequency synchronization and AGC adjustment for DL ​​TCI state#2 based on the second SSB#y. In this case, the switching delay between DL TCI state#1 and DL TCI state#2 is the same as in case 1-1.

[0113] Assuming cell #2 has a 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. The switching delay between the two beams is as follows: Figure 3f As shown.

[0114] In case 2-2, DL TCI state #1 is known, and DL TCI state #2 is unknown.

[0115] The difference between Case 2-2 and Case 1-2 lies in the value of the sharing factor. Because SSB#x and SSB#y have different periods, some parts of SSB#y overlap with SSB#x. In this case, the sharing factor for the L1 measurement time can be determined based on the periods of SSB#x and SSB#y.

[0116] like Figure 3g As shown, RS with a longer period is measured first. That is, if SSB#y overlaps with SSB#x, the terminal only measures SSB#x. In this case, since each SSB#x is measured using L1, the L1 measurement time requirement for SSB#x does not need to be relaxed. However, some SSB#ys are not measured using L1 because they overlap with SSB#x. Therefore, the L1 measurement time of SSB#y needs to be relaxed according to the sharing factor = 1 / (1 - period of SSB#y / period of SSB#x), where " / " represents division.

[0117] In cases 2-3, both DL TCI state #1 and DL TCI state #2 are unknown.

[0118] The difference between Case 2-3 and Case 2-2 is that DL TCI state #1 also needs to consider the L1 measurement time of SSB#x, but as described in Case 2-2, the L1 measurement requirement of SSB#x does not need to be relaxed. Specific switching delays are as follows... Figure 3h As shown.

[0119] In another implementation, the network-side device indicates the status of multiple UL TCIs associated with different PCIs.

[0120] The network-side device indicates that the UL TCI state #1 associated with PCI #1 and the UL TCI-state #2 associated with PCI #2 overlaps in the time domain with the RS associated with UL TCI state #1 and the RS associated with UL TCI state #2, 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 can 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 can be the same or different.

[0121] Case 3: The RS associated with UL TCI state #1 and the RS associated with UL TCI state #2 have the same period, meaning they completely overlap in the time domain.

[0122] Case 3-1: Both UL TCI state #1 and UL TCI state #2 are known.

[0123] Since L1 measurement is not required, the beam switching delay only needs to consider the relaxation of the path loss estimation time compared to the traditional switching delay. Specifically, the time requirements for sampling estimation of the first PL-RS and subsequent PL-RSs need to be relaxed. The specific relaxation methods include the following two:

[0124] Based on PL-RS priority or cell priority, the terminal first completes the path loss estimation of UL TCI state #1 based on the PL-RS associated with UL TCI state #1 and the sampling of its subsequent N-1 PL-RS, and then completes the path loss estimation of UL TCI state #2 based on the PL-RS associated with UL TCI state #2 and the sampling of its subsequent N-1 PL-RS. In this case, it is only necessary to relax the path loss estimation time corresponding to TCI state #2 according to the sharing factor being equal to 2.

[0125] 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 manner to estimate the road loss. In this case, the road loss estimation time corresponding to TCI state #1 and TCI state #2 needs to be relaxed according to the sharing factor being equal to 2, similar to cases 1-2.

[0126] In case 3-2, UL TCI state #1 is known, and UL TCI state #2 is unknown.

[0127] Compared to scenario 3-1, the switching delay for UL TCI state #2 also needs to consider the L1 measurement time. Specific switching delay requirements are shown in Table 1 below.

[0128] Table 1

[0129]

[0130] In scenario 3-3, UL TCI state #1 is unknown, and UL TCI state #2 is unknown.

[0131] Compared to scenario 3-1, the switching delay between UL TCI state #1 and UL TCI state #2 also needs to take into account the L1 measurement time. Specific switching delay requirements are shown in Table 2 below.

[0132] Table 2

[0133]

[0134] Case 4: The RS associated with UL TCI state #1 and the RS associated with UL TCI state #2 have different periods, that is, they partially overlap in the time domain.

[0135] Case 4-1: Both UL TCI state #1 and UL TCI state #2 are known.

[0136] Since L1 measurement is not required, the beam switching delay only needs to be relaxed based on the traditional switching delay, specifically the time requirement for sampling and estimation of the first PL-RS and subsequent PL-RS. Because RS#2 and RS#4 have different periods, some RS#2 and RS#4 overlap. In this case, the sharing factor for path loss estimation time can be determined based on the periods of RS#2 and RS#4 (assuming RS#2's period is longer than RS#4's). If the terminal prioritizes measuring RS with the larger period, i.e., if RS#2 and RS#4 overlap, the terminal only measures RS#2. In this case, since the terminal performs path loss estimation based on the first N RS#2s, the time requirement for path loss estimation based on RS#2 does not need to be relaxed, i.e., sharing factor = 1. However, since some RS#4s overlap with RS#2 and no path loss estimation is performed, the path loss estimation based on RS#4 needs to be relaxed according to sharing factor = 1 / (1 - RS#4's period / RS#2's period).

[0137] Case 4-2: UL TCI state #1 is known, UL TCI state #2 is unknown.

[0138] Compared to Case 4-1, the switching delay of UL TCI state #2 in Case 4-2 also needs to consider the L1 measurement time. The specific switching delay requirements are shown in Table 3 below. The values ​​of sharing factor #1 and sharing factor #2 in the table can be referenced from Case 4-1.

[0139] Table 3

[0140]

[0141] Case 4-3: Both UL TCI state #1 and UL TCI state #2 are unknown.

[0142] Compared to Case 3-1, the switching delay between UL TCI state #1 and UL TCI state #2 also needs to consider the L1 measurement time. The specific switching delay requirements are shown in Table 4 below. The values ​​of sharing factor #1 and sharing factor #2 in Table 4 can be referenced from Case 4-1.

[0143] Table 4

[0144]

[0145]

[0146]

[0147] In another embodiment, the network-side device indicates the DL TCI status and UL TCI status associated with different PCIs.

[0148] The network-side device simultaneously indicates the DL TCI state #1 associated with PCI #1 and the 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 can be the same or different.

[0149] Case 5: The RS associated with UL TCI state #1 and the RS associated with UL TCI state #2 have the same period, meaning they completely overlap in the time domain.

[0150] Case 5-1: Both DL TCI state #1 and UL TCI state #2 are known.

[0151] (1) The terminal maintains the PL-RS associated with UL TCI state #2.

[0152] The switching latency requirements for DL ​​TCI state #1 and UL TCI state #2 do not need to be relaxed.

[0153] (2) The terminal does not maintain the PL-RS associated with UL TCI state#2, and RS#1 and RS#3 overlap.

[0154] (21) Extend the time-frequency synchronization and AGC adjustment time based on RS#1, i.e., the time to wait for the first RS#1:

[0155] The waiting time for RS#1 is extended to N+1, while the estimated road damage time for UL TCI state#2 is not extended.

[0156] The waiting time for the second RS#1 is extended, while the N-1 sampling time based on RS#3 in the UL TCI state#2 road loss estimation time is extended to the N sampling time based on RS#3;

[0157] (22) The waiting time for the first RS#3 in the estimated road loss time of UL TCI state#2 is extended to the waiting time for the second RS#3, or extended to twice the waiting time for the first RS#3; the switching delay of UL TCI state#2 does not need to be relaxed;

[0158] Case 5-2: DL TCI state #1 is known, UL TCI state #2 is unknown.

[0159] Case 5-2-1: The terminal maintains the PL-RS associated with UL TCI state #2, and RS#1 overlaps with RS#2.

[0160] Because RS#1 and RS#2 overlap, the time-frequency synchronization and AGC adjustment time of DL TCI state#1 and the L1 measurement time corresponding to UL TCI state#2 need to be relaxed and adjusted, as follows:

[0161] The time-frequency synchronization and AGC adjustment time of DL TCI state#1 are not extended, but the L1 measurement time corresponding to UL TCI state#2 is extended to the time of the first RS#2.

[0162] The L1 measurement time corresponding to UL TCI state #2 is not extended, but the time-frequency synchronization and AGC adjustment time of DL TCI state #1 are extended based on the L1 measurement time of RS #1.

[0163] The terminal does not maintain the PL-RS associated with UL TCI state #2, as shown in Table 5.

[0164] Table 5

[0165]

[0166]

[0167] Case 5-3: Both DL TCI state #1 and UL TCI state #2 are unknown.

[0168] Case 5-3-1: The terminal maintains the PL-RS associated with UL TCI state #2, and RS#1 and RS#2 overlap.

[0169] Because RS#1 and RS#2 overlap, the time-frequency synchronization and AGC adjustment time of DL TCI state#1 and the L1 measurement time, as well as the L1 measurement time corresponding to UL TCI state#2, need to be relaxed and adjusted, as follows:

[0170] The time-frequency synchronization and AGC adjustment time of DL TCI state #1 do not need to be relaxed, while the L1 measurement time of DL TCI state #1 and UL TCI state #2 is relaxed according to the sharing factor. Alternatively, the switching delay of UL TCI state #2 can be extended by either waiting for the first RS #2 or by one RS #2 cycle.

[0171] The terminal does not maintain the PL-RS associated with UL TCI state #2.

[0172] The handover delay requirement for DL ​​TCI state #1 must at least consider the relaxation of time-frequency synchronization and AGC adjustment time, and L1 measurement time; the handover delay requirement for UL TCI state #2 must at least consider the relaxation of path loss estimation time and L1 measurement time. Specific details are shown in Table 6 below:

[0173] Table 6

[0174]

[0175] Case 6: The RS associated with UL TCI state #1 and the RS associated with UL TCI state #2 have different periods, meaning they partially overlap in the time domain.

[0176] Case 6-1: Both DL TCI state #1 and UL TCI state #2 are known.

[0177] (1) The terminal maintains the PL-RS associated with UL TCI state #2.

[0178] The switching latency requirements for DL ​​TCI state #1 and UL TCI state #2 do not need to be relaxed.

[0179] (2) The terminal does not maintain the PL-RS associated with UL TCI state #2, and RS#1 and RS#3 partially overlap.

[0180] (21) Extend the time-frequency synchronization and AGC adjustment time based on RS#1, i.e., the time to wait for the first RS#1:

[0181] 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 waiting time, while the N-1 sampling time based on RS#3 in the road loss estimation time of ULTCI state#2 is extended to the N sampling time based on RS#3;

[0182] (22) The waiting time for the first RS#3 in the estimated road loss time of UL TCI state#2 is extended to the waiting time for the second RS#3, or extended to twice the waiting time for the first RS#3; the switching delay of UL TCI state#2 does not need to be relaxed;

[0183] Case 6-2: DL TCI state #1 is known, while UL TCI state #2 is unknown.

[0184] Case 6-2-1: The terminal maintains the PL-RS associated with UL TCI state #2, and RS#1 overlaps with RS#2:

[0185] Same as case 5-2-1.

[0186] The terminal does not maintain the PL-RS associated with UL TCI state #2, as shown in Table 7.

[0187] Table 7

[0188]

[0189] Case 6-3: Both DL TCI state #1 and UL TCI state #2 are unknown.

[0190] Case 6-3-1: The terminal maintains the PL-RS associated with UL TCI state #2, and RS#1 overlaps with RS#2.

[0191] Since RS#1 and RS#2 overlap, the time-frequency synchronization and AGC adjustment time of DL TCI state#1 and the L1 measurement time, as well as the L1 measurement time corresponding to UL TCI state#2, need to be relaxed and adjusted, as follows;

[0192] The time-frequency synchronization and AGC adjustment time of DL TCI state #1 do not need to be relaxed. The L1 measurement time of DL TCI state #1 is relaxed according to sharing factor #1, and the L1 measurement time of UL TCI state #2 is relaxed according to sharing factor #2. Alternatively, the switching delay of UL TCI state #2 can be extended by waiting for the first RS #2 or by one RS #2 cycle.

[0193] The terminal does not maintain the PL-RS associated with UL TCI state #2.

[0194] The handover delay requirement for DL ​​TCI state #1 must at least consider the relaxation of time-frequency synchronization and AGC adjustment time, and L1 measurement time; the handover delay requirement for UL TCI state #2 must at least consider the relaxation of path loss estimation time and L1 measurement time. Specific details are shown in Table 8 below:

[0195] Table 8

[0196]

[0197]

[0198] This invention provides a method for determining beam switching delay, enabling a terminal to clearly determine the effective time of the corresponding beam and apply it correctly when the network instructs multiple beams associated with different cells to schedule and transmit data, thereby ensuring transmission reliability. The beam switching delay determination method provided in this application is preferably applied to high-speed mobile scenarios.

[0199] The beam switching delay determination method provided in this application can be executed by a beam switching delay determination device. This application uses the beam switching delay determination device executing the beam switching delay determination method as an example to illustrate the beam switching delay determination device provided in this application.

[0200] like Figure 4 As shown in the figure, this application provides a device for determining beam switching delay, including:

[0201] The receiving module 401 is used to receive indication information, the indication information being used to indicate a target beam, the target beam including a first beam and a second beam, the first beam and the second beam being associated with two different cells respectively;

[0202] The determining module 402 is used to determine the switching delay of the target beam according to a first preset rule when the indication information is received.

[0203] Optionally, the first preset rule includes at least one of the following:

[0204] Extend the measurement time of layer L1;

[0205] Extend the time-frequency synchronization and AGC adjustment time;

[0206] Extend the path loss estimation time.

[0207] Optionally, extending the L1 measurement time includes:

[0208] The L1 measurement time corresponding to the first beam is extended according to a first preset value;

[0209] The L1 measurement time corresponding to the second beam is extended according to the second preset value;

[0210] The extended path loss estimation time includes:

[0211] The path loss estimation time corresponding to the first beam is extended according to a third preset value;

[0212] The path loss estimation time corresponding to the second beam is extended according to the fourth preset value.

[0213] Optionally, the first preset value is determined according to at least one of the following:

[0214] The period of the first reference signal RS;

[0215] The priority of the first RS;

[0216] The priority of the cell associated with the first RS;

[0217] or,

[0218] The second preset value is determined based on at least one of the following:

[0219] The first RS period;

[0220] The priority of the first RS;

[0221] The priority of the cell associated with the first RS;

[0222] or,

[0223] The third preset value is determined based on at least one of the following:

[0224] The first RS period;

[0225] The priority of the first RS;

[0226] The priority of the cell associated with the first RS;

[0227] or,

[0228] The fourth preset value is determined based on at least one of the following:

[0229] The first RS period;

[0230] The priority of the first RS;

[0231] The priority of the cell associated with the first RS.

[0232] Optionally, if at least two of the first beam-associated RS, the second beam-associated RS, and the second RS overlap in the time domain, the first RS includes at least one of the first beam-associated RS, the second beam-associated RS, and the second RS among the time-overlapping RSs.

[0233] Optionally, the extended time-frequency synchronization and AGC adjustment time includes extending the arrival time of the first RS received after receiving the indication information, wherein extending the arrival time of the first RS is to extend the arrival time of the first RS by a factor of U.

[0234] Optionally, if at least two of the first beam-associated RS, the second beam-associated RS, and the second RS overlap in the time domain, the value of K is the number of RSs with time-domain overlap, and U is a positive integer less than or equal to K.

[0235] Optionally, the first beam and the second beam satisfy at least one of the following:

[0236] The first beam or the second beam is associated with the terminal's current serving cell;

[0237] The RS associated with the first beam and the second beam overlap in the time domain;

[0238] The RS associated with the first beam overlaps with the RS associated with the second beam in the time domain;

[0239] The second beam-associated RS overlaps with the second RS in the time domain.

[0240] Optionally, the cell associated with the second RS includes one of the following:

[0241] The terminal's current serving cell;

[0242] One of the target beams is associated with a cell;

[0243] Other cells, which are cells other than the currently serving cell and the cells associated with each beam in the target beam.

[0244] Optionally, the second RS is: a beam failure detection reference signal (BFD-RS), a candidate beam detection reference signal (CBD-RS), a radio link detection reference signal (RLM-RS), or an RS used for L1 measurement.

[0245] Optionally, the RS associated with the first beam includes at least one of the following:

[0246] The direct or indirect quasi-co-located QCL source RS of the first beam;

[0247] The path loss reference signal PL-RS associated with the first beam;

[0248] Alternatively, the RS associated with the second beam may include at least one of the following:

[0249] The direct or indirect QCL source RS of the second beam;

[0250] The second beam-associated PL-RS.

[0251] Optionally, the indication information is carried in one or more beam switching signaling messages.

[0252] Optionally, the indication information includes at least one of the following:

[0253] Spatial relationship identifier;

[0254] Transmission Configuration Indicator (TCI) Status Identifier.

[0255] Optionally, the switching delay of the target beam includes at least one of the following:

[0256] The delay in receiving and processing the instruction information;

[0257] Hybrid Automatic Repeat Request (HARQ) latency;

[0258] L1 measurement time;

[0259] Time and frequency synchronization and AGC adjustment time;

[0260] Path loss estimation time.

[0261] Optionally, the determining module 402 is configured to determine the switching delay of the target beam based on a first preset rule when the indication information is received.

[0262] Optionally, the first switching delay is determined according to the protocol.

[0263] The beam switching delay determination device in this application embodiment can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or other devices besides a terminal. For example, the terminal can include, but is not limited to, the type of terminal 11 listed above; other devices can be servers, network attached storage (NAS), etc., and this application embodiment does not specifically limit the type.

[0264] The beam switching delay determination device provided in this application embodiment can achieve Figure 2 The various processes implemented in the method embodiment achieve the same technical effect, and will not be described again here to avoid repetition.

[0265] Optional, such as Figure 5 As shown, this application embodiment also provides a communication device 500, including a processor 501 and a memory 502. The memory 502 stores a program or instructions that can run on the processor 501. For example, when the communication device 500 is a terminal, when the program or instructions are executed by the processor 501, they implement the various steps of the above-described method for determining beam switching delay and achieve the same technical effect.

[0266] This application embodiment also provides a terminal, including a processor and a communication interface. The processor is used to determine the switching delay of the target beam according to a first preset rule upon receiving the indication information. The communication interface is used to receive the indication information, which indicates the target beam. The target beam includes a first beam and a second beam, which are respectively associated with two different cells. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 6 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0267] The terminal 600 includes, but is not limited to, at least some of the following components: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, and processor 610.

[0268] Those skilled in the art will understand that the terminal 600 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 610 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 6 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0269] It should be understood that, in this embodiment, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042. The GPU 6041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0270] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 601 can transmit it to the processor 610 for processing; in addition, the radio frequency unit 601 can send uplink data to the network-side device. Typically, the radio frequency unit 601 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0271] The memory 609 can be used to store software programs or instructions, as well as various data. The memory 609 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 609 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can 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), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 609 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0272] Processor 610 may include one or more processing units; optionally, processor 610 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 610.

[0273] The radio frequency unit 601 is used to receive indication information, which is used to indicate a target beam. The target beam includes a first beam and a second beam, and the first beam and the second beam are respectively associated with two different cells.

[0274] The processor 610 is configured to determine the switching delay of the target beam according to a first preset rule upon receiving the indication information.

[0275] Optionally, the first preset rule includes at least one of the following:

[0276] Extend the measurement time of layer L1;

[0277] Extend the time-frequency synchronization and AGC adjustment time;

[0278] Extend the path loss estimation time.

[0279] Optionally, extending the L1 measurement time includes:

[0280] The L1 measurement time corresponding to the first beam is extended according to a first preset value;

[0281] The L1 measurement time corresponding to the second beam is extended according to the second preset value;

[0282] The extended path loss estimation time includes:

[0283] The path loss estimation time corresponding to the first beam is extended according to a third preset value;

[0284] The path loss estimation time corresponding to the second beam is extended according to the fourth preset value.

[0285] Optionally, the first preset value is determined according to at least one of the following:

[0286] The period of the first reference signal RS;

[0287] The priority of the first RS;

[0288] The priority of the cell associated with the first RS;

[0289] or,

[0290] The second preset value is determined based on at least one of the following:

[0291] The first RS period;

[0292] The priority of the first RS;

[0293] The priority of the cell associated with the first RS;

[0294] or,

[0295] The third preset value is determined based on at least one of the following:

[0296] The first RS period;

[0297] The priority of the first RS;

[0298] The priority of the cell associated with the first RS;

[0299] or,

[0300] The fourth preset value is determined based on at least one of the following:

[0301] The first RS period;

[0302] The priority of the first RS;

[0303] The priority of the cell associated with the first RS.

[0304] Optionally, if at least two of the first beam-associated RS, the second beam-associated RS, and the second RS overlap in the time domain, the first RS includes at least one of the first beam-associated RS, the second beam-associated RS, and the second RS among the time-overlapping RSs.

[0305] Optionally, the extended time-frequency synchronization and AGC adjustment time includes extending the arrival time of the first RS received after receiving the indication information, wherein extending the arrival time of the first RS is to extend the arrival time of the first RS by a factor of U.

[0306] Optionally, if at least two of the first beam-associated RS, the second beam-associated RS, and the second RS overlap in the time domain, the value of K is the number of RSs with time-domain overlap, and U is a positive integer less than or equal to K.

[0307] Optionally, the first beam and the second beam satisfy at least one of the following:

[0308] The first beam or the second beam is associated with the terminal's current serving cell;

[0309] The RS associated with the first beam and the second beam overlap in the time domain;

[0310] The RS associated with the first beam overlaps with the RS associated with the second beam in the time domain;

[0311] The second beam-associated RS overlaps with the second RS in the time domain.

[0312] Optionally, the cell associated with the second RS includes one of the following:

[0313] The terminal's current serving cell;

[0314] One of the target beams is associated with a cell;

[0315] Other cells, which are cells other than the currently serving cell and the cells associated with each beam in the target beam.

[0316] Optionally, the second RS is:

[0317] Beam Failure Detection Reference Signal (BFD-RS), Candidate Beam Detection Reference Signal (CBD-RS), Radio Link Detection Reference Signal (RLM-RS), or RS used for L1 measurement.

[0318] Optionally, the RS associated with the first beam includes at least one of the following:

[0319] The direct or indirect quasi-co-located QCL source RS of the first beam;

[0320] The path loss reference signal PL-RS associated with the first beam;

[0321] Alternatively, the RS associated with the second beam may include at least one of the following:

[0322] The direct or indirect QCL source RS of the second beam;

[0323] The second beam-associated PL-RS.

[0324] Optionally, the indication information is carried in one or more beam switching signaling messages.

[0325] Optionally, the indication information includes at least one of the following:

[0326] Spatial relationship identifier;

[0327] Transmission Configuration Indicator (TCI) Status Identifier.

[0328] Optionally, the switching delay of the target beam includes at least one of the following:

[0329] The delay in receiving and processing the instruction information;

[0330] Hybrid Automatic Repeat Request (HARQ) latency;

[0331] L1 measurement time;

[0332] Time and frequency synchronization and AGC adjustment time;

[0333] Path loss estimation time.

[0334] Optionally, the processor 610 is configured to, upon receiving the indication information, determine the switching delay of the target beam based on a first preset rule according to a first switching delay.

[0335] Optionally, the first switching delay is determined according to the protocol.

[0336] The terminal provided in this application embodiment can achieve... Figure 2The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0337] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described method for determining beam switching delay and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0338] The processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0339] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described method embodiment for determining beam switching delay, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0340] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0341] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described method for determining beam switching delay, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0342] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the beam switching delay determination method described above.

[0343] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0344] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0345] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for determining beam switching delay, characterized in that, include: The terminal receives indication information, which is used to indicate a target beam. The target beam includes a first beam and a second beam, and the first beam and the second beam are respectively associated with two different cells. When the terminal receives the indication information and the RS associated with the first beam and the second beam overlap in the time domain, the switching delay of the target beam is determined according to the first preset rule; The first preset rule includes at least one of the following: Extend the measurement time of layer L1; Extend the adjustment time for time-frequency synchronization and automatic gain control (AGC); Extend the path loss estimation time.

2. The method according to claim 1, characterized in that, The measurement time for the extension layer L1 includes: The L1 measurement time corresponding to the first beam is extended according to a first preset value; The L1 measurement time corresponding to the second beam is extended according to the second preset value; The extended path loss estimation time includes: The path loss estimation time corresponding to the first beam is extended according to a third preset value; The path loss estimation time corresponding to the second beam is extended according to the fourth preset value.

3. The method according to claim 2, characterized in that, The first preset value is determined based on at least one of the following: The period of the first reference signal RS; The priority of the first RS; The priority of the cell associated with the first RS; or, The second preset value is determined based on at least one of the following: The period of the first RS; The priority of the first RS; The priority of the cell associated with the first RS; or, The third preset value is determined based on at least one of the following: The period of the first RS; The priority of the first RS; The priority of the cell associated with the first RS; or, The fourth preset value is determined based on at least one of the following: The period of the first RS; The priority of the first RS; The priority of the cell associated with the first RS; Wherein, if at least two of the first beam-associated RS, the second beam-associated RS, and the second RS overlap in the time domain, the first RS includes at least one of the first beam-associated RS, the second beam-associated RS, and the second RS among the overlapping RS in the time domain. Wherein, the second RS is: Beam Failure Detection Reference Signal (BFD-RS), Candidate Beam Detection Reference Signal (CBD-RS), Radio Link Detection Reference Signal (RLM-RS), or RS used for L1 measurement.

4. The method according to claim 1, characterized in that, The extended time-frequency synchronization and AGC adjustment time includes extending the arrival time of the first RS received after receiving the indication information, wherein extending the arrival time of the first RS by a factor of U.

5. The method according to claim 4, characterized in that, When at least two of the first beam-associated RS, the second beam-associated RS, and the second RS overlap in the time domain, the value of K is the number of RSs with said time-domain overlap, and U is a positive integer less than or equal to K. Wherein, the second RS is: Beam Failure Detection Reference Signal (BFD-RS), Candidate Beam Detection Reference Signal (CBD-RS), Radio Link Detection Reference Signal (RLM-RS), or RS used for L1 measurement.

6. The method according to claim 1, characterized in that, The first beam and the second beam satisfy at least one of the following: The first beam or the second beam is associated with the terminal's current serving cell; The RS associated with the first beam overlaps with the RS associated with the second beam in the time domain; The second beam-associated RS overlaps with the second RS in the time domain; Wherein, the second RS is: Beam Failure Detection Reference Signal (BFD-RS), Candidate Beam Detection Reference Signal (CBD-RS), Radio Link Detection Reference Signal (RLM-RS), or RS used for L1 measurement.

7. The method according to claim 3, 5 or 6, characterized in that, The cell associated with the second RS includes one of the following: The terminal's current serving cell; One of the target beams is associated with a cell; Other cells, which are cells other than the currently serving cell and the cells associated with each beam in the target beam.

8. The method according to claim 3, 5 or 6, characterized in that, The RS associated with the first beam includes at least one of the following: The direct or indirect quasi-co-located QCL source RS of the first beam; The path loss reference signal PL-RS associated with the first beam; Alternatively, the RS associated with the second beam may include at least one of the following: The direct or indirect QCL source RS of the second beam; The second beam-associated PL-RS.

9. The method according to claim 1, characterized in that, The indication information is carried in one or more beam switching signaling messages.

10. The method according to claim 1, characterized in that, The instruction information includes at least one of the following: Spatial relationship identifier; Transmission Configuration Indicator (TCI) Status Identifier.

11. The method according to claim 1, characterized in that, The switching delay of the target beam includes at least one of the following: The delay in receiving and processing the instruction information; Hybrid Automatic Repeat Request (HARQ) latency; L1 measurement time; Time and frequency synchronization and AGC adjustment time; Path loss estimation time.

12. The method according to claim 1, characterized in that, When the terminal receives the indication information, the switching delay of the target beam is determined according to a first preset rule, including: When the terminal receives the instruction information, the switching delay of the target beam is determined according to the first preset rule based on the first switching delay.

13. The method according to claim 12, characterized in that, The first switching delay is determined according to the protocol.

14. A device for determining beam switching delay, characterized in that, include: A receiving module is used to receive indication information, the indication information being used to indicate a target beam, the target beam including a first beam and a second beam, the first beam and the second beam being associated with two different cells respectively; The determination module is used to determine the switching delay of the target beam according to a first preset rule when it receives the indication information and the RS associated with the first beam and the second beam overlap in the time domain. The first preset rule includes at least one of the following: Extend the measurement time of layer L1; Extend the time-frequency synchronization and AGC adjustment time; Extend the path loss estimation time.

15. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the method for determining beam switching delay as described in any one of claims 1 to 13.

16. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method for determining beam switching delay as described in any one of claims 1-13.

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