CN116032442A

CN116032442A - Beam application time determining method and device and communication equipment

Info

Publication number: CN116032442A
Application number: CN202111258237.6A
Authority: CN
Inventors: 杨宇
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2023-04-28
Also published as: WO2023072087A1

Abstract

The application discloses a method, a device and communication equipment for determining beam application time, which belong to the technical field of communication, and the method for determining the beam application time in the embodiment of the application comprises the following steps: the communication equipment determines a timing starting point symbol corresponding to the reference CC according to a first symbol, wherein the first symbol is the last symbol occupied by ACK of the beam indication information; the communication equipment determines a first slot corresponding to a target CC according to the timing starting point symbol, wherein the target CC is the CC where the ACK is positioned or the first CC belonging to the first TAG in the target CC group; the communication device determines the BAT of the CC belonging to each TAG in the target CC group according to the first slot.

Description

Beam application time determining method and device and communication equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method and a device for determining beam application time (beam application time, BAT) and communication equipment.

Background

The network-side device may transmit beam indication information to the terminal through a medium access control unit (medium access control control element, MAC CE) or downlink control information (downlink control information, DCI), so that the terminal and/or the network-side device may determine a beam application time (beam application time, BAT) of a beam indicated by the beam indication information.

In general, the terminal may select a CC with the smallest subcarrier spacing (Subcarrier spacing, SCS) from a carrier element (component carrier, CC) (hereinafter abbreviated as CC 0) in which a response message (ACK) of the beam indication information is transmitted and a CC corresponding to the beam indication information as a reference CC, and then use the first slot after Y symbols from the start of timing on a time domain resource corresponding to the reference CC as the BAT of all CCs corresponding to the beam indication information.

However, since CCs to which beam indication information corresponds may belong to different time advance groups (timing advance group, TAG) in a carrier aggregation (carrier aggregation, CA) scenario, slots (slots) and symbols (symbols) between the CCs may not be aligned. In this way, the BAT of all or part of CCs may be located in the middle of slots, instead of the first symbol of slots, so that the application time of the CCs corresponding to the beam indication information may not be aligned, and correct data transmission may not be performed.

Disclosure of Invention

The embodiment of the application provides a method, a device and communication equipment for determining beam application time, which can solve the problem that the application time of a CC in a CA scene cannot be aligned and correct data transmission cannot be performed.

In a first aspect, a method for determining a beam application time is provided, the method comprising: the communication equipment determines a timing starting point symbol corresponding to the reference CC according to a first symbol, wherein the first symbol is the last symbol occupied by ACK of the beam indication information; the communication equipment determines a first slot corresponding to a target CC according to the timing starting point symbol, wherein the target CC is the CC where the ACK is positioned or the first CC belonging to the first TAG in the target CC group; the communication device determines the BAT of the CC belonging to each TAG in the target CC group according to the first slot.

By the above scheme, since the CCs belonging to one TAG have a certain association relationship (for example, SCS is the same or SCS is a multiple relationship) in the time domain, when the CCs belonging to the target CC group belong to different TAGs or the TAGs to which the CCs belonging to the target CC group belong are different from the TAGs to which the CCs belonging to the ACK belong, by determining the timing start symbol corresponding to the reference CC and determining the first slot corresponding to the target CC, and determining the BAT of the CCs belonging to each TAG in the target CC group according to the first slot, the effective time of the beams of the CCs belonging to the same TAG in the target CC group can be consistent, that is, the beams of the CCs belonging to the same TAG can be aligned, so that data transmission can be performed correctly.

In a second aspect, a method for determining a beam application time is provided, including: the communication equipment determines a timing starting point symbol corresponding to the reference BWP according to a seventh symbol, wherein the seventh symbol is the last symbol occupied by ACK of the beam indication information; the communication device determines a fourth slot corresponding to a target BWP according to the timing start symbol, where the target BWP is the BWP where the ACK is located or the first BWP in the target BWP group to which the CC belongs and which belongs to the third TAG; the communication device determines the BAT of the BWP of the CC belonging to each TAG in the target BWP group according to the fourth slot.

By the above scheme, since the BWP of the CC belonging to one TAG has a certain association relationship (for example, SCS is the same or SCS is a multiple relationship) in the time domain, in the case that the CCs belonging to the target BWP group belong to different TAGs or the TAGs belonging to the BWP of the target BWP group are different from the TAGs belonging to the CCs belonging to the ACK-located BWP, by determining the timing start symbol corresponding to the reference BWP and determining the first slot corresponding to the target BWP, and determining the BAT of the BWP of the CC belonging to each TAG in the target BWP group according to the first slot, the beam validation time of the BWP of the same TAG of the CC belonging to the target BWP group can be made uniform, that is, the beams of the BWP of the same TAG of the CC can be aligned, so that data transmission can be performed correctly.

In a third aspect, there is provided a beam application time determining apparatus, comprising: the determining module is used for determining a timing starting point symbol corresponding to the reference CC according to a first symbol, wherein the first symbol is the last symbol occupied by the ACK of the beam indication information; determining a first slot corresponding to a target CC according to the timing starting point symbol, wherein the target CC is the CC where the ACK is positioned or the first CC belonging to the first TAG in the target CC group; and determining BAT of the CC belonging to each TAG in the target CC group according to the first slot.

In a fourth aspect, there is provided a beam application time determining apparatus, including: a determining module, configured to determine, according to a seventh symbol, a timing start symbol corresponding to the reference BWP, where the seventh symbol is a last symbol occupied by ACK of the beam indication information; determining a fourth slot corresponding to a target BWP according to the timing start point symbol, wherein the target BWP is the BWP where the ACK is located or the first BWP of the target BWP group to which the CC belongs and belongs to the third TAG; and determining a beam application time BAT of the BWP of the CC belonging to each TAG in the target BWP group according to the fourth slot.

In a fifth aspect, there is provided a communication device (including a terminal and/or network side device) comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the method as in the first aspect.

In a sixth aspect, a communication device is provided, including a processor and a communication interface, where the processor is configured to determine a timing start symbol corresponding to a reference CC according to a first symbol, where the first symbol is a last symbol occupied by an ACK of beam indication information; determining a first slot corresponding to a target CC according to the timing starting point symbol, wherein the target CC is the CC where the ACK is positioned or the first CC belonging to the first TAG in the target CC group; and determining BAT of the CC belonging to each TAG in the target CC group according to the first slot. Or alternatively. The processor is configured to determine a timing start symbol corresponding to the reference BWP according to a seventh symbol, where the seventh symbol is a last symbol occupied by ACK of the beam indication information; determining a fourth slot corresponding to a target BWP according to the timing start point symbol, wherein the target BWP is the BWP where the ACK is located or the first BWP of the target BWP group to which the CC belongs and belongs to the third TAG; and determining a beam application time BAT of the BWP of the CC belonging to each TAG in the target BWP group according to the fourth slot.

In a seventh aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In an eighth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.

In a ninth aspect, a computer program/program product is provided, the computer program/program product being stored in a non-volatile storage medium, the program/program product being executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

Drawings

Fig. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a method for determining beam application time according to an embodiment of the present application;

fig. 3 is one of application diagrams of a beam application time determining method provided in an embodiment of the present application;

fig. 4 is a second application diagram of the beam application time determining method according to the embodiment of the present application;

fig. 5 is a third application diagram of the method for determining beam application time according to the embodiment of the present application;

fig. 6 is a fourth application diagram of the beam application time determining method according to the embodiment of the present application;

Fig. 7 is a fifth application diagram of the beam application time determining method according to the embodiment of the present application;

fig. 8 is a sixth application schematic diagram of a beam application time determining method according to an embodiment of the present application;

fig. 9 is a seventh application diagram of the beam application time determining method according to the embodiment of the present application;

fig. 10 is an eighth application diagram of the beam application time determining method provided in the embodiment of the present application;

fig. 11 is a ninth application diagram of the beam application time determining method provided in the embodiment of the present application;

fig. 12 is a schematic diagram of an application of the method for determining beam application time according to the embodiment of the present application;

fig. 13 is an eleventh application diagram of a beam application time determining method according to an embodiment of the present application;

fig. 14 is a twelve application diagrams of a beam application time determining method according to an embodiment of the present application;

fig. 15 is a thirteenth application diagram of a beam application time determining method according to an embodiment of the present application;

fig. 16 is a fourteenth application diagram of a beam application time determining method according to an embodiment of the present application;

fig. 17 is fifteen application diagrams of a beam application time determining method according to an embodiment of the present application;

Fig. 18 is sixteen application diagrams of the beam application time determining method provided in the embodiment of the present application;

fig. 19 is a second flowchart of a beam application time determining method according to an embodiment of the present application;

fig. 20 is a schematic structural diagram of a beam application time determining apparatus according to an embodiment of the present application;

fig. 21 is a structural view of a communication device provided in an embodiment of the present application;

fig. 22 is a hardware schematic diagram of a terminal provided in an embodiment of the present application;

fig. 23 is a hardware schematic diagram of a network side device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but these techniques may also be applied to applications other than NR system applications, such as 6 th Generation (6G) communication systems.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or furniture), and the like, and the Wearable Device includes: intelligent watches, intelligent bracelets, intelligent headphones, intelligent glasses, intelligent jewelry (intelligent bracelets, intelligent rings, intelligent necklaces, intelligent bracelets, intelligent footchains, etc.), intelligent bracelets, intelligent clothing, game machines, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

The beam application time determination provided in the embodiments of the present application is described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

As shown in fig. 2, an embodiment of the present application provides a beam application time determining method, which includes steps 201 to 203 described below.

Step 201, the communication device determines a timing start symbol corresponding to the reference CC according to the first symbol.

The first symbol may be the last symbol occupied by the ACK of the beam indication information.

It may be appreciated that determining the timing start symbol corresponding to the reference CC may be determining the timing start symbol on the time domain resource of the reference CC.

The communication device may be a terminal or a network device. The method can be specifically determined according to actual use requirements, and the embodiment of the application is not limited.

In this embodiment of the present application, the beam indication information may be information sent by a network side device to a terminal, for example, common beam (common beam) indication information, where the common beam is used for multiple downlink channels and/or multiple uplink channels, and may include a channel dedicated to a User Equipment (UE) or a channel dedicated to a non-UE. It can be understood that the ACK is an ACK of beam indication information sent by the terminal to the network side device.

Step 202, the communication device determines a first slot corresponding to the target CC according to the timing start point symbol.

The target CC may be a CC in which the ACK is located or a first CC belonging to a first TAG in the target CC group.

It can be understood that the CC in which the ACK is located is a CC carrying ACK of the beam indication information. The determining the first slot corresponding to the target CC may be determining the first slot on the time domain resource of the target CC.

Step 203, the communication device determines the BAT of the CC belonging to each TAG in the target CC group according to the first slot.

In this embodiment of the present application, after the terminal receives the beam indication information, the terminal may send ACK of the beam indication information to the network side device. Then, the communication device (terminal and/or network side device) may determine the timing start point symbol on the time domain resource of the reference CC according to the first symbol (the last symbol occupied by the ACK of the beam indication information), determine a first slot on the time domain resource corresponding to the target CC according to the timing start point symbol, and then determine, according to the first slot, a BAT of a CC belonging to each TAG in the target CC group, that is, the communication device may determine, according to the first slot, a BAT of a CC of each TAG in the target CC group.

In this embodiment of the present application, the CCs in the target CC set may be CCs to which the beam indication information is applied. The beam indication information may be common beam (common beam) indication information.

Optionally, in the embodiment of the present application, the CC in the target CC group and the CC in which the ACK is located belong to at least two TAGs.

Alternatively, in the embodiment of the present application, CCs in the target CC group may belong to at least one TAG. Under the condition that the CC in the target CC group belongs to one TAG, the TAG to which the CC in the ACK belongs is different from the TAG to which the CC in the target CC group belongs; under the condition that the CCs in the target CC group belong to a plurality of TAGs, the TAGs to which the CCs in the ACK belong and the TAGs to which the CCs in the target CC group belong can be the same or different, and can be determined according to actual use requirements, and the method is not limited.

It should be noted that, when the present application refers to "a plurality of CCs belong to one TAG", it may also be understood that cells corresponding to the plurality of CCs belong to the same TAG.

Optionally, in the embodiment of the present application, in a case where CCs in the target CC group belong to at least two TAGs, the at least two TAGs correspond to the same transport configuration indication (transmission configuration indicator, TCI) state pool (state pool), or the at least two TAGs correspond to different TCI state pools. That is, when the network side device configures a TCI state pool for a target CC group, no matter whether CCs in the target CC group belong to several TAGs, one TCI state pool may be configured for CCs in the target CC group, or one TCI state pool may be configured for CCs belonging to the same TAG according to the TAGs to which CCs in the target CC group belong, and another TCI state pool may be configured for CCs belonging to another TAG.

In this embodiment of the present application, the network side device may indicate, through downlink information, downlink Control Information (DCI), a TCI state corresponding to a CC in the target CC group, and then determine downlink common beam information and/or uplink common beam information of the CC in the target CC group according to the TCI state.

Optionally, in this embodiment of the present application, the reference CC (the CC used for determining the timing start symbol) may be the CC in which the ACK is located, the first CC, or a second CC belonging to a second TAG in the target CC group.

It may be appreciated that in the case where the reference CC is the second CC, CCs in the target CC group may belong to a plurality of TAGs.

In this embodiment of the present application, when the above reference CCs are different, the determined timing start symbols are different, and the target CCs are also different, so that the determined first slots are also different. Thus, the BAT of the CC belonging to each TAG of the target CC group is also different. The beam application time determining method provided in the embodiment of the present application is exemplarily described below with reference to three cases of CCs.

First case: the reference CC is a first CC, which is the CC with the smallest SCS in the first TAG.

Based on the first scenario, in one implementation, the timing start symbol may be a symbol determined according to the first symbol. It may be appreciated that the timing start symbol may be a symbol corresponding to a mapping position of the first symbol on a time domain resource corresponding to the first CC.

In another implementation, the timing start symbol may be a symbol determined from the first symbol and a first Timing Advance (TA). Wherein, the first TA may include at least one of the following: the TAs corresponding to the first TAG and the TAs corresponding to the TAGs to which the CC to which the ACK belongs.

It may be appreciated that the timing start symbol may be a symbol corresponding to a mapping position of the first symbol on the time domain resource corresponding to the first CC after subtracting and/or adding the first TA. Alternatively, the timing start symbol may be a symbol corresponding to a first symbol after the mapping position of the first symbol on the time domain resource corresponding to the first CC is retracted backward and/or advanced forward by a first TA. The backward backoff refers to the number of symbols before (before) the mapping position of the first symbol on the time domain resource corresponding to the first CC, and the forward progress refers to the number of symbols after (after/next) the mapping position of the first symbol on the time domain resource corresponding to the first CC. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

It can be further understood that, if the time of the first symbol is t1, the time difference between the TA corresponding to the TAG to which the CC to which the ACK belongs and the TA corresponding to the first TAG is t2, if the TA corresponding to the TAG to which the CC to which the ACK belongs is greater than the TA corresponding to the first TAG, the time of the starting point symbol is (t1+t2), and if the TA corresponding to the TAG to which the CC to which the ACK belongs is less than the TA corresponding to the first TAG, the time of the starting point symbol is (t 1-t 2).

For example, assuming that the TA corresponding to the first TAG is 3 symbols and the TA corresponding to the TAG to which the CC to which the ACK belongs is 5 symbols, the timing start symbol may be a symbol corresponding to a mapping position of the first symbol on the time domain resource corresponding to the first CC after adding 5 symbols and subtracting 3 symbols. That is, compared with the symbol on the time domain resource corresponding to the CC where the ACK is located, the timing start symbol determined according to the TA corresponding to the first TAG and the TA corresponding to the TAG where the CC where the ACK is located, which is 2 symbols later in time, the mapping position of the first symbol on the time domain resource corresponding to the first CC needs to be advanced by 2 symbols, and if the mapping position is the symbol n on the time domain resource corresponding to the first CC, the timing start symbol is the symbol (n+2).

In addition, the TAG to which the CC where the ACK belongs may be a different TAG from the first TAG.

Optionally, in the first case, when the target CC is the first CC, the first slot may be a first slot after Y symbols after the timing start symbol on a time domain resource corresponding to the first CC.

It should be noted that, the value of Y may be configured for the network side device. Wherein each Y of the network configuration may correspond to at least one of a set CC, BWP, SCS.

Optionally, based on the first case, in the target CC group, the BAT of the CC belonging to the first TAG is the first slot.

It will be appreciated that for the first case described above, the communication device may determine the BAT of all CCs in the first TAG by determining the BAT of the CC for which SCS in the first TAG is the smallest.

The first case (both the reference CC and the target CC are the first CC) described above is exemplarily described below with reference to the accompanying drawings.

One possible scenario is: the CCs in the target CC set belong to the same TAG.

Assuming that the CC in which the ACK is located (hereinafter referred to as CC 0) belongs to TAG1, the CCs in the target CC group all belong to TAG2. If the SCS of CC1 (i.e., the first CC described above) among CCs belonging to TAG2 is the smallest, CC1 belonging to TAG2 is taken as a reference CC.

Example 1: as shown in fig. 3, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is mapped to the first time point T1 (i.e., the timing start symbol) on the time domain resource corresponding to CC1 according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG2 to which CC0 belongs, and then the first slot (the first slot) located after the Y-th symbol is taken as the first slot according to the SCS of CC1 and the Y symbols from T1, so that the first slot is taken as the BAT of the CC belonging to TAG2.

Example 2: as shown in fig. 4, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is mapped to a second time point T2 (i.e., a timing start symbol) on a time domain resource corresponding to CC1, and then, according to SCS of CC1, Y symbols are started from T2, and the first slot located after the Y symbol is taken as the first slot, so that the first slot is taken as the BAT of the CC belonging to TAG 2.

Another possible case is: CCs in the target CC group belong to different TAGs.

Let the CC in which the ACK is located (hereinafter referred to as CC 0) belong to TAG1, and the CCs in the target CC group, one part belongs to TAG2 and the other part belongs to TAG3. If the SCS of the CC1 is the smallest in the CCs belonging to the TAG2, taking the CC1 as a reference (reference) CC corresponding to the TAG 2; and if the SCS of the CC2 is minimum in the CCs belonging to the TAG3, taking the CC2 as a reference CC corresponding to the TAG3.

Example 3: as shown in fig. 5, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is mapped to a first time point TAG2-T1 (i.e., a timing start symbol corresponding to TAG 2) on a time domain resource corresponding to CC1 according to at least one of TA corresponding to TAG1 and TA corresponding to TAG2 to which CC0 belongs, and then Y symbols are counted from TAG2-T1 according to SCS of CC1, and the first slot located after the Y-th symbol (TAG 2-T6) is used as the first slot corresponding to TAG2, so that the first slot is used as the BAT of the CC belonging to TAG 2. And, according to at least one of TAG1 corresponding to TAG3 and TAG1 corresponding to TAG 0, mapping T0 to a first time point TAG3-T1 (namely a timing starting point symbol corresponding to TAG 3) on a time domain resource corresponding to CC2, then starting from TAG3-T1 for Y symbols according to SCS of CC2, taking a first slot after a Y-th symbol (TAG 3-T6) as a first slot corresponding to TAG3, thereby taking the first slot as BAT of the CC belonging to TAG3.

Example 4: as shown in fig. 6, T0 (i.e., a first symbol) is mapped to a second time point TAG2-T2 (i.e., a timing start symbol corresponding to TAG 2) on a time domain resource corresponding to CC1, then Y symbols are counted from TAG2-T2 according to SCS of CC1, and a first slot located after a Y-th symbol (TAG 2-T6) is used as a first slot corresponding to TAG2, so that the first slot is used as a BAT of a CC belonging to TAG 2. And, T0 (i.e., a first symbol) is mapped to a second time point TAG3-T2 (i.e., a timing start symbol corresponding to TAG 3) on a time domain resource corresponding to CC2, and then, according to SCS of CC2, Y symbols are counted from TAG3-T2, and a first slot located after the Y-th symbol (TAG 3-T6) is taken as a first slot corresponding to TAG3, so that the first slot is taken as a BAT of a CC belonging to TAG 3.

It should be noted that, the value of Y corresponding to each TAG may be the same or different, and may specifically be determined according to the actual use requirement, which is not limited in the embodiment of the present application.

In addition, in the case where CCs in the target CC group belong to a plurality of TAGs, the number of TAGs is not limited, for example, 2 TAGs, 3 TAGs, 4 TAGs, or the like, and the present application is exemplified by 2 TAGs. For the implementation in which the CCs in the target CC group belong to other numbers of TAGs, similar to the implementation in which the CCs in the target CC group belong to 2 TAGs, a description will be omitted herein to avoid repetition.

Second case: the reference CC is a second CC, and the second CC is the CC with the smallest SCS in the target CC group.

Based on the second scenario, in one implementation, the timing start symbol may be a symbol determined according to the first symbol. It may be appreciated that the timing start symbol may be a symbol corresponding to a mapping position of the first symbol on a time domain resource corresponding to the second CC.

In another implementation, the timing start symbol is a symbol determined from the first symbol and the second TA. Wherein, the second TA may include at least one of the following: and the TAs corresponding to the second TAG and the TAs corresponding to the TAG of the CC to which the ACK belongs.

It may be appreciated that the timing start symbol may be a symbol corresponding to a mapping position of the first symbol on the time domain resource corresponding to the second CC after subtracting and/or adding the second TA. Alternatively, the timing start symbol may be a symbol corresponding to a mapping position of the first symbol on the time domain resource corresponding to the second CC after backward and/or forward advancing the second TA. The backward backoff refers to the number of symbols before (before) the mapping position of the first symbol on the time domain resource corresponding to the second CC, and the forward progress refers to the number of symbols after (after/next) the mapping position of the first symbol on the time domain resource corresponding to the second CC. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

It can be further understood that, if the time of the first symbol is t1, the time difference between the TA corresponding to the CC in which the ACK is located and the TA corresponding to the second TAG is t2, if the TA corresponding to the CC in which the ACK is located is greater than the TA corresponding to the second TAG, the time of the timing start symbol is (t1+t2), and if the TA corresponding to the CC in which the ACK is located is less than the TA corresponding to the second TAG, the time of the timing start symbol is (t 1-t 2).

For example, assuming that the TA corresponding to the second TAG is 2 symbols and the TA corresponding to the TAG to which the CC to which the ACK belongs is 5 symbols, the timing start symbol may be a symbol corresponding to a mapping position of the first symbol on the time domain resource corresponding to the second CC after adding 5 symbols and subtracting 2 symbols. That is, compared with the symbol on the time domain resource corresponding to the CC where the ACK is located, the timing start symbol determined according to the TA corresponding to the second TAG and the TA corresponding to the TAG where the CC where the ACK is located is 3 symbols behind in time, the mapping position of the first symbol on the time domain resource corresponding to the first CC needs to be advanced by 3 symbols, and if the mapping position is the symbol n on the time domain resource corresponding to the first CC, the timing start symbol is the symbol (n+3).

It should be noted that, based on the second case, the TAG to which the CC where the ACK belongs may be a different TAG, or may be the same TAG, and specifically may be determined according to an actual use requirement, which is not limited in this embodiment of the present application.

In addition, the first TAG and the second TAG may be different TAGs.

Optionally, in the second case, when the target CC may be the first CC, and the first CC may be the CC with the smallest SCS in the first TAG, the first slot may be a first slot located after the second symbol on a time domain resource corresponding to the first CC.

Alternatively, in some embodiments, the second symbol may be a symbol determined according to a second slot.

The second slot may be a first slot located after a third symbol on a time domain resource corresponding to the second CC, where the third symbol may be a Y-th symbol located after a timing start symbol on the time domain resource corresponding to the second CC. It may be understood that the second symbol may be a symbol corresponding to a mapping position of the second slot (or be understood as a first symbol in the second slot) on a time domain resource corresponding to the first CC.

In some embodiments, the second symbol may be a symbol determined according to the second slot and the third TA. Wherein, the third TA may include at least one of the following: TA corresponding to the first TAG and TA corresponding to the second TAG.

It may be appreciated that the second symbol may be a symbol corresponding to a mapping position of the second slot (e.g., a first symbol of the second slot) on the time domain resource corresponding to the first CC after subtracting and/or adding the third TA. Alternatively, the second symbol may be a symbol corresponding to a mapping position of the second slot (for example, a first symbol of the second slot) on the time domain resource corresponding to the first CC after the mapping position is backed off and/or advanced forward by a third TA. The backward backoff refers to the number of symbols before (before) the mapping position on the time domain resource corresponding to the first CC in the second slot (for example, the first symbol of the second slot), and the forward progress refers to the number of symbols after (after/next) the mapping position on the time domain resource corresponding to the first CC in the second slot (for example, the first symbol of the second slot). If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

It can be further understood that, if the time of the first symbol of the second slot is t3, the time difference between the TA corresponding to the first TAG and the TA corresponding to the second TAG is t4, if the TA corresponding to the second TAG is greater than the TA corresponding to the first TAG, the time of the timing start symbol is (t3+t4), and if the TA corresponding to the second TAG is less than the TA corresponding to the first TAG, the time of the timing start symbol is (t 3-t 4).

For example, assuming that the TA corresponding to the first TAG is 3 symbols and the TA corresponding to the second TAG is 2 symbols, the second symbol may be a symbol corresponding to a mapping position of the second slot on the time domain resource corresponding to the first CC added with 2 symbols and subtracted with 3 symbols. That is, according to the second symbol determined by the TA corresponding to the first TAG and the TA corresponding to the second TAG, compared with the symbol on the time domain resource corresponding to the second CC, the mapping position of the second slot on the time domain resource corresponding to the first TAG needs to be retracted back by 1 symbol in time, and if the mapping position is the symbol n on the time domain resource corresponding to the first CC, the second symbol is the symbol (n-1).

In other embodiments, the second symbol may be a symbol determined according to the third symbol.

The third symbol may be a Y-th symbol located after the timing start symbol on the time domain resource corresponding to the second CC. It may be appreciated that the second symbol may be a symbol corresponding to a mapping position of the third symbol on the time domain resource corresponding to the first CC.

In still other embodiments, the second symbol is a symbol determined from the third symbol and the third TA. Wherein the third TA may include at least one of: TA corresponding to the first TAG and TA corresponding to the second TAG.

It may be appreciated that the second symbol may be a symbol corresponding to a third symbol after subtracting and/or adding a third TA from a mapping position of the third symbol on the time domain resource corresponding to the first CC. Alternatively, the second symbol may be a symbol corresponding to a third symbol after the mapping position of the third symbol on the time domain resource corresponding to the first CC is backed off and/or advanced forward by a third TA. The backward backoff refers to the number of symbols before (before) the mapping position of the third symbol on the time domain resource corresponding to the first CC, and the forward progress refers to the number of symbols after (after/next) the mapping position of the third symbol on the time domain resource corresponding to the first CC. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

It can be further understood that, if the time of the third symbol is t3, the time difference between the TA corresponding to the first TAG and the TA corresponding to the second TAG is t4, if the TA corresponding to the second TAG is greater than the TA corresponding to the first TAG, the time of the timing start symbol is (t3+t4), and if the TA corresponding to the second TAG is less than the TA corresponding to the first TAG, the time of the timing start symbol is (t 3-t 4).

In this embodiment of the present application, based on the above second case, the BAT of the CC belonging to the first TAG may be the first slot, and the BAT of the CC belonging to the second TAG may be the second slot.

It will be appreciated that for the second case described above, the communication device may determine the BAT of all CCs in the first TAG by determining the BAT of the first CC (the CC with the smallest SCS in the first TAG); and by determining the BAT of the second CC (the CC with the smallest SCS in the target CC set), the BAT of all CCs in the second TAG is determined.

The second case (the reference CC is the second CC, and the target CC is the first CC) is exemplarily described below with reference to the accompanying drawings.

Let the CC in which the ACK is located (hereinafter referred to as CC 0) belong to TAG x, and the CC in the target CC group, one part belongs to TAG2 and the other part belongs to TAG3. If the SCS of CC1 belonging to TAG2 is smallest in the target CC group, CC1 is taken as a reference CC common to TAG2 and TAG3. Wherein, TAGX can be the same as TAG2 or TAG3, or can be different from both TAG2 and TAG3.

Example 5: as shown in fig. 7, according to at least one of the TA of the TAG x to which CC0 belongs and the TA corresponding to TAG2, mapping T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) to a first time point T1 (i.e., a timing start symbol) on the time domain resource corresponding to CC 1; then, according to the SCS of CC1, starting with T1, Y symbols are counted, and the first slot (first slot) located after the Y-th symbol (T6, i.e., the third symbol) is used as the first slot corresponding to TAG2, so that the first slot is used as the BAT of the CC belonging to TAG 2. And mapping T6 (i.e., the third symbol) to T7 (i.e., the second symbol) on a time domain resource corresponding to CC2 (i.e., the first CC) having the smallest SCS in TAG3 according to at least one of TA of TAG2 and TA of TAG3, and taking the next slot after T7 as the first slot of CC2 on the time domain resource corresponding to CC2, thereby taking the next slot after T7 as the BAT of the CC belonging to TAG 3.

Example 6: as shown in fig. 8, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is mapped to a first time point T1 (i.e., a timing start symbol) on a time domain resource corresponding to CC 1; then, according to the SCS of CC1, starting with T1, Y symbols are counted, and the first slot (first slot) located after the Y-th symbol (T6, i.e., the third symbol) is used as the first slot corresponding to TAG2, so that the first slot is used as the BAT of the CC belonging to TAG 2. And mapping T6 (i.e., the third symbol) to T7 (i.e., the second symbol) on a time domain resource corresponding to CC2 (i.e., the first CC) having the smallest SCS in TAG3 according to at least one of TA of TAG2 and TA of TAG3, and taking the next slot after T7 on the time domain resource corresponding to CC2 as the first slot of CC2, thereby taking the first slot of CC2 as the BAT of the CC belonging to TAG 3.

Example 7: as shown in fig. 9, according to at least one of the TA of the TAG x where the CC0 is located and the TA corresponding to the TAG2, mapping T0 (the last symbol occupied by the ACK on the CC0, i.e., the first symbol) to a first time point T1 (i.e., a timing start symbol) on the time domain resource corresponding to the CC 1; then, according to the SCS of CC1, starting with T1, Y symbols are counted, and the first slot (first slot) located after the Y-th symbol (T6, i.e., the third symbol) is used as the first slot corresponding to TAG2, so that the first slot is used as the BAT of the CC belonging to TAG 2. And mapping T6 (i.e., the third symbol) to T7 (i.e., the second symbol) on a time domain resource corresponding to CC2 (i.e., the first CC) with the smallest SCS in TAG3, and taking the next slot after T7 as the first slot of CC2 on the time domain resource corresponding to CC2, thereby taking the first slot as the BAT of the CC belonging to TAG 3.

Example 8: as shown in fig. 10, mapping T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) to a first time point T2 (i.e., a timing start symbol) on a time domain resource corresponding to CC 1; then, according to the SCS of CC1, starting with T2, Y symbols are counted, and the first slot (first slot) located after the Y-th symbol (T6, i.e., the third symbol) is taken as the first slot corresponding to TAG2, so that the first slot is taken as the BAT of each CC in TAG 2. And mapping T6 (i.e., the third symbol) to T7 (i.e., the second symbol) on a time domain resource corresponding to CC2 (i.e., the first CC) having the smallest SCS in TAG3, and taking the next slot after T7 as the first slot of CC2 on the time domain resource corresponding to CC2, thereby taking the first slot as the BAT of BWP of the CC belonging to TAG 3.

Example 9: as shown in fig. 11, according to at least one of the TA of the TAG x where CC0 is located and the TA corresponding to TAG2, mapping T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) to a first time point T1 (i.e., a timing start symbol) on the time domain resource corresponding to CC 1; then, according to the SCS of CC1, starting with T1 and counting Y symbols, taking the first slot (i.e. the second slot) located after the Y-th symbol (T6, i.e. the third symbol) as the first slot corresponding to TAG2, and taking the first slot as the BAT of each CC in TAG 2. And mapping a first slot (i.e., the second slot) located after T6 to a time point on a time domain resource corresponding to CC2 (i.e., the first CC) having the smallest SCS in TAG3 according to at least one of TA of TAG2 and TA of TAG3 (or without considering TA), that is, mapping a first symbol in the first slot located after T6 to a symbol position on a time domain resource corresponding to CC2 having the smallest SCS in TAG3, and mapping a next slot located after the time point on a time domain resource corresponding to CC2 as a BAT of a CC belonging to TAG 3.

Example 10: as shown in fig. 12, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is mapped to a first time point T2 (i.e., a timing start symbol) on a time domain resource corresponding to CC 1; then, according to the SCS of CC1, starting with T2, Y symbols are counted, and the first slot (i.e., the second slot) located after the Y-th symbol (T6, i.e., the third symbol) is taken as the first slot corresponding to TAG2, so that the first slot is taken as the BAT of each CC in TAG 2. And mapping a first slot (i.e., the above second slot) located after T6 to a time point on a time domain resource corresponding to CC2 (i.e., the above first CC) having the smallest SCS in TAG3 according to at least one of TA of TAG2 and TA of TAG3 (or irrespective of TA), that is, mapping a first symbol located in the first slot after T6 to a symbol position on a time domain resource corresponding to CC2 having the smallest SCS in TAG3, and taking a next slot located after the time point as a BAT of a CC belonging to TAG3 on a time domain resource corresponding to CC 2.

Third case: the reference CC is the CC where the ACK is located, and the CC where the ACK is located is the CC in the target CC group and the CC with the minimum SCS in the CC where the ACK is located.

Alternatively, in the third case described above, the timing start symbol may be the first symbol.

Based on the third scenario, in one possible implementation, the target CC may be the CC in which the ACK is located. In this case, the first slot may be a first slot located Y symbols after the timing start symbol on the time domain resource corresponding to the CC where the ACK is located.

In this embodiment of the present application, in the case where the target CC is the CC where the ACK is located, in the target CC group, BAT of CCs belonging to the same TAG group is the third slot.

The third slot may be a first slot located after the fourth symbol on a time domain resource corresponding to the third CC, and the third CC may be a CC with the smallest SCS in the same TAG group.

In one implementation, the fourth symbol may be a symbol determined according to the first slot.

It may be appreciated that the fourth symbol may be a symbol corresponding to a mapping position of the first slot on a time domain resource corresponding to the third CC. That is, the fourth symbol may be a symbol corresponding to a mapping position of the first symbol of the first slot on the time domain resource corresponding to the third CC.

In another implementation, the fourth symbol is a symbol determined from the first slot and the fourth TA. Wherein, the fourth TA may include at least one of: and the TAG corresponding to the TAG to which the third CC belongs and the TAG corresponding to the TAG to which the CC to which the ACK belongs.

It may be appreciated that the fourth symbol may be a symbol corresponding to a mapping position of the first slot on the time domain resource corresponding to the third CC, where the symbol is subtracted and/or added with the symbol corresponding to the fourth TA. Alternatively, the fourth symbol may be a symbol corresponding to a mapping position of the first slot (for example, the first symbol of the first slot) on the time domain resource corresponding to the third CC after the fourth TA is backed off and/or advanced forward. The backward backoff refers to the number of symbols before (before) the mapping position of the first slot (such as the first symbol of the first slot) on the time domain resource corresponding to the third CC, and the forward progress refers to the number of symbols after (after/next) the mapping position of the first slot (such as the first symbol of the first slot) on the time domain resource corresponding to the third CC. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

It may be further understood that, if the time of the first slot (for example, the first symbol of the first slot) is T5, the time difference between the TA corresponding to the TAG to which the CC belongs in which the ACK belongs and the TA corresponding to the TAG to which the third CC belongs is T6, if the TA corresponding to the TAG to which the CC belongs in which the ACK belongs is greater than the TA corresponding to the TAG to which the third CC belongs, the time of the fourth symbol is (t1+t2), and if the TA corresponding to the TAG to which the CC belongs in which the ACK is less than the TA corresponding to the TAG to which the third CC belongs, the time of the fourth symbol is (T1-T2).

For example, assuming that the TA corresponding to the TAG to which the third CC belongs is 3 symbols and the TA corresponding to the TAG to which the ACK belongs is 4 symbols, the fourth symbol may be a symbol corresponding to a mapping position of the first slot on the time domain resource corresponding to the third CC after adding 4 symbols and subtracting 3 symbols. That is, according to the TA corresponding to the TAG to which the third CC belongs and the fourth symbol determined by the TA corresponding to the TAG of the CC to which the ACK belongs, compared with the symbol on the time domain resource corresponding to the CC to which the ACK belongs, the mapping position of the first slot (for example, the first symbol of the first slot) on the time domain resource corresponding to the third CC needs to be advanced by 1 symbol compared with the symbol behind by 1 symbol in time, and if the mapping position is the symbol n on the time domain resource corresponding to the first CC, the timing start symbol is the symbol (n+1).

An implementation manner of the third case (the reference CC and the target CC are both CCs on which the ACK is located) is exemplarily described below with reference to the accompanying drawings.

One possible scenario is: the CCs in the target CC set belong to the same TAG.

Assuming that the CC in which the ACK is located (hereinafter referred to as CC 0) belongs to TAG1, the CCs in the target CC group all belong to TAG2. If the SCS of CC1 (i.e., the third CC described above) among CCs belonging to TAG2 is the smallest, CC1 belonging to TAG2 is used as TAG2 for determining the CC of BAT.

Example 11: as shown in fig. 13, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is determined as the timing start symbol, according to SCS of CC0, the number Y of symbols from T0, the first slot (the first slot) located after the Y-th symbol (denoted as T3) is taken as the first slot, so that according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG2 where CC0 is located (or without considering TA), the first slot is mapped to a time point on the time domain resource corresponding to CC1 (i.e., the third CC), and the next slot located after the time point is taken as the BAT of the CC belonging to TAG2 on the time domain resource corresponding to CC 1.

Another possible case is: CCs in the target CC group belong to different TAGs.

Let the CC in which the ACK is located (hereinafter referred to as CC 0) belong to TAG1, and the CCs in the target CC group, one part belongs to TAG2 and the other part belongs to TAG3. If the SCS of the CC1 is the smallest in the CCs belonging to the TAG2, taking the CC1 as a third CC corresponding to the TAG 2; and if the SCS of the CC2 is the smallest among the CCs belonging to the TAG3, taking the CC2 as a third CC corresponding to the TAG3.

Example 12: as shown in fig. 14, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is determined as the timing start symbol, and according to SCS of CC0, the number Y of symbols from T0, the first slot (the first slot) located after the Y-th symbol (denoted as T3) is taken as the first slot. Then, according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG2 (or without considering the TA) where the CC0 is located, mapping the first slot to a time point on the time domain resource corresponding to the CC1 (i.e., the third CC corresponding to TAG 2), and taking the next slot located after the time point on the time domain resource corresponding to the CC1 as the BAT belonging to the CC in TAG 2. And mapping the first slot to a time point on a time domain resource corresponding to CC2 (i.e. a third CC corresponding to TAG 3) according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG3 (or without considering the TA) where CC0 is located, and taking the next slot located after the time point on the time domain resource corresponding to CC2 as the BAT of the CC belonging to TAG 3.

Based on the third scenario, in another possible implementation manner, the target CC is a first CC, and the first CC is a CC with the smallest SCS in the first TAG. In this case, the first slot may be a first slot located after the fifth symbol on a time domain resource corresponding to the first CC.

In one implementation, the fifth symbol may be a symbol determined according to the sixth symbol.

The sixth symbol may be a Y-th symbol located after the timing start symbol on the time domain resource corresponding to the CC where the ACK is located. It may be appreciated that, in the above implementation, the fifth symbol may be a symbol corresponding to a mapping position of the sixth symbol on the time domain resource corresponding to the first CC.

In another implementation, the fifth symbol may be a symbol determined according to the sixth symbol and the first TA. Wherein, the first TA may include at least one of the following: the TAs corresponding to the first TAG and the TAs corresponding to the TAGs to which the CC to which the ACK belongs.

It may be appreciated that, in the foregoing implementation, the fifth symbol may be a symbol corresponding to a mapping position of the sixth symbol on the time domain resource corresponding to the first CC, where the symbol is subtracted and/or added to a symbol corresponding to the symbol after the first TA. Alternatively, the fifth symbol may be a symbol corresponding to the sixth symbol after the mapping position on the time domain resource corresponding to the first CC is backed off and/or advanced forward by the first TA. The backward backoff refers to the number of symbols before (before) the mapping position of the sixth symbol on the time domain resource corresponding to the first CC, and the forward progress refers to the number of symbols after (after/next) the mapping position of the sixth symbol on the time domain resource corresponding to the first CC. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

It can be further understood that, if the time of the sixth symbol is t7, the time difference between the TA corresponding to the TAG to which the CC to which the ACK belongs and the TA corresponding to the first TAG is t8, if the TA corresponding to the TAG to which the CC to which the ACK belongs is greater than the TA corresponding to the first TAG, the time of the fifth symbol is (t7+t8), and if the TA corresponding to the TAG to which the CC to which the ACK belongs is less than the TA corresponding to the first TAG, the time of the fifth symbol is (t 7-t 8).

For example, assuming that the TA corresponding to the first TAG is 5 symbols and the TA corresponding to the TAG to which the CC to which the ACK belongs is 3 symbols, the fifth symbol may be a symbol corresponding to a mapping position of the sixth symbol on the time domain resource corresponding to the third CC after adding 3 symbols and subtracting 5 symbols. That is, according to the TA corresponding to the first TAG and the fifth symbol determined by the TA corresponding to the TAG of the CC to which the ACK belongs, compared with the symbol on the time domain resource corresponding to the CC to which the ACK belongs, the fifth symbol is advanced in time by 2 symbols, and the mapping position of the sixth symbol on the time domain resource corresponding to the first CC needs to be retracted backward by 2 symbols, and if the mapping position is the symbol n on the first CC, the timing start symbol is the symbol (n-2).

Based on the third situation, in the case where the target CC is the first CC, in the target CC group, BAT of the CC belonging to the first TAG is the first slot.

Another implementation manner of the third case (reference CC is the CC in which ACK is located, and target CC is the first CC) is exemplarily described below with reference to the accompanying drawings.

One possible scenario is: the CCs in the target CC set belong to the same TAG.

Assuming that the CC in which the ACK is located (hereinafter referred to as CC 0) belongs to TAG1, the CCs in the target CC group all belong to TAG2. If the SCS of CC1 (i.e., the first CC described above) among CCs belonging to TAG2 is the smallest, CC1 belonging to TAG2 is used as TAG2 for determining the CC of BAT.

Example 13: as shown in fig. 15, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is determined as a timing start symbol, Y symbols from T0 are counted according to SCS of CC0, the Y-th symbol (i.e., the sixth symbol, denoted as T3) is mapped to T4 (i.e., the fifth symbol) on the time domain resource corresponding to CC1 according to at least one of TA corresponding to TAG1 and TA corresponding to TAG2 where CC0 is located, and the first slot after T4 is taken as the first slot, thereby taking the first slot as the BAT of the CC belonging to TAG2.

Example 14: as shown in fig. 16, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is determined as a timing start symbol, and according to SCS of CC0, the Y-th symbol (i.e., the sixth symbol, denoted as T3) is mapped to T5 (i.e., the fifth symbol) on the time domain resource corresponding to CC1, and the first slot after T5 is taken as the first slot, so that the first slot is taken as the BAT of the CC belonging to TAG2.

Another possible case is: CCs in the target CC group belong to different TAGs.

Let the CC in which the ACK is located (hereinafter referred to as CC 0) belong to TAG1, and the CCs in the target CC group, one part belongs to TAG2 and the other part belongs to TAG3. If the SCS of the CC1 is the smallest in the CCs belonging to the TAG2, taking the CC1 as a target CC corresponding to the TAG 2; and if the SCS of the CC2 is the smallest among the CCs belonging to the TAG3, taking the CC2 as a target CC corresponding to the TAG3.

Example 15: as shown in fig. 17, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is determined as a timing start symbol, and according to SCS of CC0, a number of Y symbols from T0. Then, according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG2 where the CC0 is located, mapping the Y-th symbol (i.e., the sixth symbol, denoted as T3) to TAG2-T4 (i.e., the fifth symbol corresponding to TAG 2) on the time domain resource corresponding to the CC1, and taking the first slot after TAG2-T4 as the first slot, thereby taking the first slot as the BAT of the CC belonging to TAG 2. And mapping the Y-th symbol (i.e. the sixth symbol is denoted as T3) to TAG3-T4 (i.e. the fifth symbol corresponding to TAG 3) on the time domain resource corresponding to CC2 according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG3 where CC0 is located, and taking the first slot (the first slot) after TAG3-T4 as the first slot, thereby taking the first slot as the BAT of the CC belonging to TAG3.

Example 16: as shown in fig. 18, T0 (the last symbol occupied by ACK on CC0, i.e., the first symbol) is determined as a timing start symbol, and according to SCS of CC0, a number of Y symbols starts from T0. Then, the Y-th symbol (i.e., the sixth symbol, denoted as T3) is mapped to TAG2-T5 (i.e., the fifth symbol corresponding to TAG 2) on the time domain resource corresponding to CC1, and the first slot (first slot) after TAG2-T5 is used as the first slot, so that the first slot is used as the BAT of the CC belonging to TAG 2. And mapping the Y-th symbol (namely the sixth symbol is marked as T3) to TAG3-T5 (namely a fifth symbol corresponding to TAG 3) on the time domain resource corresponding to the CC2, and taking a first slot (first slot) after the TAG3-T5 as a first slot, thereby taking the first slot as the BAT of the CC belonging to the TAG 3.

According to the beam application time determining method, as the CCs belonging to one TAG have a certain association relation (such as the same SCS or the multiple relation of SCS) in the time domain, when the CCs in the target CC group belong to different TAGs or the TAGs to which the CCs in the target CC group belong are different from the TAGs to which the CCs in the ACK belong, the timing starting point symbol corresponding to the reference CCs is determined, the first slot corresponding to the target CCs is determined, and the BAT of the CCs belonging to each TAG in the target CC group is determined according to the first slot, so that the effective time of the beams of the CCs belonging to the same TAG in the target CC group is consistent, namely, the beams of the CCs belonging to the same TAG are aligned, and data transmission can be performed correctly.

In this embodiment of the present application, the network side device may configure a plurality of BWP for a cell corresponding to one CC, where the plurality of BWP includes activation BWP (active BWP) and deactivation BWP (inactive BWP), and in a process of transmitting data, the communication device (for example, the terminal and the network side device) may send or receive data on a time domain resource corresponding to one BWP (active BWP) of the CC, so that the beam application time of the CC (or all BWP of the CC) may be determined by determining the beam application time of one BWP (for example, the BWP with the minimum SCS) on the time domain resource corresponding to the CC.

As shown in fig. 19, the embodiment of the present application provides a beam application time determining method, which may include steps 301 to 303 described below.

Step 301, the communication device determines a timing start symbol corresponding to the reference BWP according to the seventh symbol.

The seventh symbol may be the last symbol occupied by the ACK of the beam indication information.

Step 302, the communication device determines a fourth slot corresponding to the target BWP according to the timing start symbol.

The target BWP may be the BWP where the ACK is located or the first BWP in the target BWP group, where the CC belongs to the third TAG.

It may be understood that the BWP where the ACK is located may be a BWP carrying ACK of the beam indication information, and specifically may be a BWP of a CC carrying ACK of the beam indication information.

Step 303, the communication device determines, according to the fourth slot, the BAT of the BWP belonging to the CC of each TAG in the target BWP group.

In this embodiment of the present application, after the terminal receives the beam indication information, the terminal may send ACK of the beam indication information to the network side device. Then, the communication device (terminal and/or network side device) may determine the timing start symbol on the time domain resource corresponding to the reference BWP according to the seventh symbol (the last symbol occupied by the ACK of the beam indication information), determine a fourth slot on the time domain resource corresponding to the target BWP according to the timing start symbol, and then determine the BAT of the BWP of the CC belonging to each TAG in the target BWP group according to the fourth slot, that is, the communication device may determine the BAT of the BWP of the CC of each TAG in the target BWP group according to the fourth slot.

It should be noted that, in the embodiment of the present application, the BWP in the target BWP group may be the BWP to which the beam indication information is applied. The beam indication information may be common beam (common beam) indication information.

Optionally, in the embodiment of the present application, the CC to which the BWP in the target BWP group belongs and the CC to which the BWP to which the ACK belongs belong to at least two TAGs.

Alternatively, in the embodiment of the present application, the CC to which the BWP in the target BWP group belongs may belong to at least one TAG. Wherein, in the case that the BWP in the target BWP group belongs to one TAG, the TAG to which the BWP in the BWP group belongs to the CC to which the ACK belongs is different from the TAG to which the BWP in the target BWP group belongs to the CC; in the case where the BWP in the target BWP group belongs to a plurality of TAGs, the TAG to which the BWP in the BWP group belongs to the CC to which the ACK belongs may be the same as or different from the TAG to which the BWP in the target BWP group belongs, and may specifically be determined according to actual use requirements, which is not limited in this application.

Optionally, in the embodiment of the present application, in a case where the CC to which the BWP in the target BWP group belongs to at least two TAGs, the at least two TAGs correspond to the same TCI state pool, or the at least two TAGs correspond to different TCI state pools. That is, when the network side device configures a TCI state pool for a CC to which a BWP in the target BWP group belongs, no matter how many TAGs the CC to which the BWP in the target BWP group belongs, one TCI state pool may be configured for the CC to which the BWP in the target BWP group belongs, or one TCI state pool may be configured for a CC to which the BWP in the target BWP group belongs, and another TCI state pool may be configured for a CC to which another TAG belongs.

In this embodiment of the present application, the network side device may indicate, through downlink information, for example, downlink Control Information (DCI), a TCI state corresponding to a CC to which the BWP in the target BWP group belongs, and then determine downlink common beam information and/or uplink common beam information of the BWP in the target BWP group according to the TCI state.

Alternatively, in the embodiment of the present application, the reference BWP (BWP for determining the timing start symbol) may be the BWP where the ACK is located, the first BWP, or the second BWP where the CC to which the target BWP group belongs to the fourth TAG.

It may be appreciated that, in the case where the reference BWP is the second BWP, CCs to which the BWP in the target BWP group belongs may belong to a plurality of TAGs.

In this embodiment of the present application, when the reference BWP is different, the determined timing start symbol is different, and the target BWP is also different, so that the determined fourth slot is also different. As such, the BAT of the BWP belonging to the CC of each TAG in the target BWP group is also different. The beam application time determining method provided in the embodiment of the present application is exemplarily described below with reference to three cases of BWP.

Case one: the reference BWP is a first BWP which is the BWP with the smallest SCS among CCs belonging to the third TAG.

Based on the first case, in one implementation, the timing start symbol may be a symbol determined according to a seventh symbol. It may be appreciated that the timing start symbol may be a symbol corresponding to a mapping position of the seventh symbol on the time domain resource corresponding to the first BWP.

In another implementation, the timing start symbol may be a symbol determined from the seventh symbol and the fifth TA. Wherein, the fifth TA may include at least one of the following: and the TA corresponding to the third TAG and the TA corresponding to the TAG of the CC of the BWP to which the ACK belongs.

It may be appreciated that the timing start symbol may be a symbol corresponding to a seventh symbol after subtracting and/or adding a fifth TA from a mapping position on the time domain resource corresponding to the first BWP. Alternatively, the timing start symbol may be a symbol corresponding to a seventh symbol after the mapping position on the time domain resource corresponding to the first BWP is backed off and/or advanced forward by a fifth TA. Wherein, the backward backoff refers to the number of symbols before (before) the mapping position of the seventh symbol on the time domain resource corresponding to the first BWP, and the forward progress refers to the number of symbols after (after/next) the mapping position of the seventh symbol on the time domain resource corresponding to the first BWP. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

For an example of how to determine the timing start symbol, refer to the above embodiment, in which the relevant example of the timing start symbol is determined on the time domain resource corresponding to the first CC, and in order to avoid repetition, the description is omitted here.

In this embodiment, the TAG to which the CC to which the BWP to which the ACK belongs and the third TAG may be different TAGs.

Optionally, in the first case, in a case where the target BWP is the first BWP; the fourth slot may be the first slot after Y symbols after the start point symbol in time domain resources corresponding to the first BWP.

Optionally, based on the above case one, in the target BWP group, the BAT of the BWP belonging to the CC of the third TAG is the fourth slot.

It will be appreciated that for the above case one, the communication device may determine the BAT of BWP of all CCs belonging to the third TAG by determining the BAT of BWP of the smallest SCS among CCs belonging to the third TAG.

The above-described case one (both the reference BWP and the target BWP are the first BWP) will be exemplarily described with reference to the accompanying drawings.

One possible scenario is: the CCs to which the BWP in the target BWP group belongs belong to the same TAG.

Assuming that the CC to which the BWP where the ACK belongs (hereinafter, BWP 0) belongs to TAG1, the CCs to which the BWP in the target BWP group belongs all belong to TAG2. If SCS of BWP1 (i.e., the first BWP) is the smallest among CCs belonging to TAG2, BWP1 is taken as a reference BWP of the target BWP group.

Example 17: as shown in fig. 3, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is mapped to the first time point T1 (i.e., the timing start symbol) on the time domain resource corresponding to BWP1 according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG2 to which the CC to which BWP0 belongs, and then the first slot located after the Y-th symbol is taken as the fourth slot according to the SCS of BWP1, starting with the T1, thereby taking the first slot as the BAT of the BWP of the CC belonging to TAG 2.

Example 18: as shown in fig. 4, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is mapped to a second time point T2 (i.e., a timing start symbol) on a time domain resource corresponding to BWP1, and then Y symbols are counted from T2 according to SCS of BWP1, and the first slot located after the Y symbol is taken as the fourth slot, thereby taking the first slot as BAT of the BWP of the CC belonging to TAG 2.

Another possible case is: the BWP in the target BWP group belongs to a different TAG.

It is assumed that the CC to which the BWP (hereinafter, BWP 0) to which the ACK belongs to TAG1, and one part of the CCs to which the BWP in the target BWP group belongs to TAG2 and the other part belongs to TAG3. If SCS of BWP1 is minimum in CC belonging to TAG2, BWP1 is used as reference BWP corresponding to TAG 2; of CCs belonging to TAG3, SCS of BWP2 is smallest, and BWP2 is taken as reference BWP corresponding to TAG3.

Example 19: as shown in fig. 5, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is mapped to the first time point TAG2-T1 (i.e., the timing start symbol corresponding to TAG 2) on the time domain resource corresponding to BWP1 according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG2 to which the CC to which BWP0 belongs, and then Y symbols are counted from TAG2-T1 according to the SCS of BWP1, with the first slot (the first slot) located after the Y-th symbol (TAG 2-T6) being the fourth slot corresponding to TAG2, thereby taking the first slot as the BAT of the BWP of the CC belonging to TAG 2. And, T0 is mapped to a first time point TAG3-T1 (i.e., a timing start symbol corresponding to TAG 3) on a time domain resource corresponding to BWP2 according to at least one of a TA corresponding to TAG1 and a TA corresponding to TAG3 to which a CC to which BWP0 belongs, and then a first slot (first slot) located after a Y-th symbol (TAG 3-T6) is taken as a fourth slot corresponding to TAG3 according to Y symbols from TAG3-T1 according to SCS of BWP2, thereby taking the first slot as a BAT of a BWP of a CC belonging to TAG 3.

Example 20: as shown in fig. 6, T0 (i.e., a seventh symbol) is mapped to a second time point TAG2-T2 (i.e., a timing start symbol corresponding to TAG 2) on a time domain resource corresponding to BWP1, and then, Y symbols are counted from TAG2-T2 according to SCS of BWP1, a first slot located after the Y-th symbol (TAG 2-T6) is taken as a fourth slot corresponding to TAG2, so that the first slot is taken as a BAT of BWP of a CC belonging to TAG 2. And, T0 (i.e., seventh symbol) is mapped to a second time point TAG3-T2 (i.e., a timing start symbol corresponding to TAG 3) on a time domain resource corresponding to BWP2, and then Y symbols are counted from TAG3-T2 according to SCS of BWP2, and a first slot located after a Y-th symbol (TAG 3-T6) is taken as a fourth slot corresponding to TAG3, so that the first slot is taken as a BAT of BWP of CC belonging to TAG 3.

In addition, in the case where the CC to which the BWP in the target BWP group belongs to a plurality of TAGs, the number of TAGs is not limited, for example, 2 TAGs, 3 TAGs, 4 TAGs, or the like, and the present application exemplifies 2 TAGs. For the implementation manner that the CCs to which the BWP in the target BWP group belong to other numbers of TAGs, similar to the implementation manner that the CCs to which the BWP in the target BWP group belongs to 2 TAGs, the description will be omitted for avoiding repetition.

And a second case: the reference BWP is a second BWP, which is the BWP with the smallest SCS in the target BWP group.

Based on the second case, in one implementation, the timing start symbol may be a symbol determined according to a seventh symbol. It may be appreciated that the timing start symbol may be a symbol corresponding to a mapping position of the seventh symbol on the time domain resource corresponding to the second BWP.

In another implementation, the timing start symbol is a symbol determined from the seventh symbol and the sixth TA. Wherein, the sixth TA may include at least one of the following: and the TA corresponding to the fourth TAG and the TA corresponding to the TAG of the CC of the BWP to which the ACK belongs.

It is understood that the timing start symbol may be a symbol corresponding to a seventh symbol after subtracting and/or adding a sixth TA from a mapping position of the seventh symbol on the time domain resource corresponding to the second BWP. Alternatively, the timing start symbol may be a symbol corresponding to a seventh symbol after the mapping position on the time domain resource corresponding to the second BWP is backed off and/or advanced forward by a sixth TA. Wherein, the backward backoff refers to the number of symbols before (before) the mapping position of the seventh symbol on the time domain resource corresponding to the second BWP, and the forward progress refers to the number of symbols after (after/next) the mapping position of the seventh symbol on the time domain resource corresponding to the second BWP. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

For an example of how to determine the timing start symbol, refer to the above embodiment, in which the relevant example of the timing start symbol is determined on the time domain resource corresponding to the second CC, and in order to avoid repetition, the description is omitted here.

It should be noted that, based on the second case, the TAG to which the CC to which the BWP to which the ACK belongs and the third TAG and the fourth TAG may be different TAGs, or may be the same TAG, which may be specifically determined according to actual use requirements, and the embodiment of the present application is not limited.

In addition, the third TAG and the fourth TAG may be different TAGs.

Optionally, in the second case, in the case where the target BWP is the first BWP, and the first BWP may be the BWP with the smallest SCS in the CC belonging to the third TAG, the fourth slot may be the first slot located after the eighth symbol on the time domain resource corresponding to the first BWP.

Alternatively, in some embodiments, the eighth symbol may be a symbol determined according to the fifth slot. The fifth slot may be a first slot located after the ninth symbol on a time domain resource corresponding to the second BWP, and the ninth symbol may be a Y-th symbol located after the timing start symbol on a time domain resource corresponding to the second BWP. It may be appreciated that the eighth symbol may be a symbol corresponding to a mapping position of the fifth slot (or a first symbol in the fifth slot) on a time domain resource corresponding to the first BWP.

In other embodiments, the eighth symbol may be a symbol determined according to the fifth slot and the seventh TA. Wherein, the seventh TA may include at least one of: TA corresponding to the third TAG and TA corresponding to the fourth TAG.

It may be appreciated that the eighth symbol may be a symbol corresponding to a fifth slot (e.g., a first symbol of the fifth slot) obtained by subtracting and/or adding a seventh TA from a mapping position on the time domain resource corresponding to the first BWP. Alternatively, the eighth symbol may be a symbol corresponding to a fifth slot (for example, a first symbol of the fifth slot) after the mapping position on the time domain resource corresponding to the BWP is backed off and/or advanced forward by a seventh TA. Where the backward backoff refers to a number of symbols pointing to a position (before) of a fifth slot (e.g., a first symbol of the fifth slot) mapped on the time domain resource corresponding to the first BWP, and the forward progress refers to a number of symbols pointing to a position (after/next) of a fifth slot (e.g., a first symbol of the fifth slot) mapped on the time domain resource corresponding to the first BWP. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

For an example of how to determine the eighth symbol according to the fifth slot, refer specifically to the above embodiment, where the relevant example of the second symbol is determined on the time domain resource corresponding to the first CC according to the second slot, and in order to avoid repetition, details are not repeated here.

In other embodiments, the eighth symbol may be a symbol determined according to the ninth symbol. The ninth symbol may be a Y-th symbol located after the timing start symbol on the time domain resource corresponding to the second BWP. It may be appreciated that the eighth symbol may be a symbol corresponding to a mapping position of the ninth symbol on the time domain resource corresponding to the first BWP.

In still other embodiments, the eighth symbol is a symbol determined from the ninth symbol and the seventh TA. Wherein the seventh TA may include at least one of: TA corresponding to the third TAG and TA corresponding to the fourth TAG.

It is understood that the eighth symbol may be a symbol corresponding to the ninth symbol after subtracting and/or adding the seventh TA from the mapping position of the ninth symbol on the time domain resource corresponding to the first BWP. Alternatively, the eighth symbol may be a symbol corresponding to the ninth symbol after the mapping position on the time domain resource corresponding to the first BWP is backed off and/or advanced forward by the seventh TA. Wherein, the backward backoff refers to the number of symbols before (before) the mapping position of the ninth symbol on the time domain resource corresponding to the first BWP, and the forward direction refers to the number of symbols after (after/next) the mapping position of the ninth symbol on the time domain resource corresponding to the first BWP. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

For an example of how to determine the eighth symbol according to the ninth symbol, refer to the above embodiment, where the relevant example of determining the second symbol on the time domain resource corresponding to the first CC according to the third symbol is omitted for avoiding repetition.

In the embodiment of the present application, based on the above second case, the BAT of the BWP belonging to the CC of the third TAG may be the fourth slot; the BAT of the BWP belonging to the CC of the fourth TAG may be the fifth slot.

It can be appreciated that, for the above case two, the communication device can determine the BAT of the BWP of each CC in the third TAG by determining the BAT of the first BWP (the BWP of which SCS is the smallest among CCs belonging to the third TAG); and determines the BAT of the BWP of each CC in the fourth TAG (TAG to which the CC to which the second BWP belongs) by determining the BAT of the second BWP (the BWP of which SCS is the smallest in the target BWP group).

The above-described case two (the reference BWP is the second BWP, and the target BWP is the first BWP) will be exemplarily described with reference to the accompanying drawings.

Let the CC to which the BWP where the ACK belongs (hereinafter, BWP 0) belong belongs to TAG x, and the BWP in the target BWP group belongs to CC, one part belongs to TAG2 and the other part belongs to TAG3. If the SCS of BWP1 is the smallest among the CCs belonging to TAG2, BWP1 is taken as a reference (reference) BWP common to TAG2 and TAG3. Wherein, TAGX can be the same as TAG2 or TAG3, or can be different from both TAG2 and TAG3.

Example 21: as shown in fig. 7, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is mapped to the first time point T1 (i.e., the timing start symbol) on the time domain resource corresponding to BWP1 according to at least one of the TA of the TAG x and the TA corresponding to TAG2 to which the CC to which BWP0 belongs; then, according to the SCS of BWP1, Y symbols are counted from T1, and the first slot (first slot) located after the Y-th symbol (T6, i.e., the ninth symbol) is used as the fourth slot corresponding to TAG2, so that the first slot is used as the BAT of the BWP of the CC belonging to TAG 2. And according to at least one of the TA of TAG2 and the TA of TAG3, T6 (i.e., the above-described ninth symbol) is mapped to T7 (i.e., the above-described eighth symbol) on a time domain resource corresponding to BWP2 (i.e., the above-described first BWP) having the smallest SCS among CCs belonging to TAG3, and on the time domain resource corresponding to BWP2, the next slot located after T7 is regarded as the first slot of BWP2, so that the next slot located after T7 is regarded as the BAT of the BWP of the CC belonging to TAG 3.

Example 22: as shown in fig. 8, T0 (the last symbol occupied by ACK on BWP0, i.e., the seventh symbol) is mapped to the first time point T1 (i.e., the timing start symbol) on BWP 1; then, according to the SCS of BWP1, Y symbols are counted from T1, and the first slot (first slot) located after the Y-th symbol (T6, i.e., the ninth symbol) is used as the fourth slot corresponding to TAG2, so that the first slot is used as the BAT of the BWP of the CC belonging to TAG 2. And according to at least one of the TA of TAG2 and the TA of TAG3, mapping T6 (i.e., the above-mentioned ninth symbol) to T7 (i.e., the above-mentioned eighth symbol) of BWP2 (i.e., the above-mentioned first BWP) having the smallest SCS among CCs belonging to TAG3, and regarding the next slot after T7 as the first slot of BWP2 on the corresponding time domain resource of BWP2, thereby regarding the first slot of the BWP2 as the BAT of the BWP of the CCs belonging to TAG 3.

Example 23: as shown in fig. 9, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is mapped to a first time point T1 (i.e., a timing start symbol) on a time domain resource corresponding to BWP1 according to at least one of the TA of the TAG x where BWP0 is located and the TA corresponding to TAG 2; then, according to the SCS of BWP1, Y symbols are counted from T1, and the first slot (first slot) located after the Y-th symbol (T6, i.e., the ninth symbol) is used as the fourth slot corresponding to TAG2, so that the first slot is used as the BAT of the BWP of the CC belonging to TAG 2. And T6 (i.e., the ninth symbol described above) is mapped to T7 (i.e., the eighth symbol described above) on a time domain resource corresponding to BWP2 (i.e., the first BWP) having the smallest SCS among CCs belonging to TAG3, and the next slot located after T7 on the time domain resource corresponding to BWP2 is regarded as the first slot of BWP2, thereby regarding the first slot as the BAT of the BWP of the CCs belonging to TAG 3.

Example 24: as shown in fig. 10, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is mapped to a first time point T2 (i.e., a timing start symbol) on the time domain resource corresponding to BWP 1; then, according to the SCS of BWP1, Y symbols are counted from T2, and the first slot (first slot) located after the Y-th symbol (T6, i.e., the ninth symbol) is used as the fourth slot corresponding to TAG2, so that the first slot is used as the BAT of the BWP of the CC belonging to TAG 2. And T6 (i.e., the ninth symbol described above) is mapped to T7 (i.e., the eighth symbol described above) on a time domain resource corresponding to BWP2 (i.e., the first BWP) having the smallest SCS among CCs belonging to TAG3, and the next slot located after T7 on the time domain resource corresponding to BWP2 is regarded as the first slot of BWP2, thereby regarding the first slot as the BAT of the BWP of the CCs belonging to TAG 3.

Example 25: as shown in fig. 11, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is mapped to a first time point T1 (i.e., a timing start symbol) on a time domain resource corresponding to BWP1 according to at least one of the TA of the TAG x where BWP0 is located and the TA corresponding to TAG 2; then, according to the SCS of BWP1, Y symbols are counted from T1, and the first slot (i.e., the fifth slot) located after the Y-th symbol (T6, i.e., the ninth symbol) is taken as the fourth slot corresponding to TAG2, so that the first slot is taken as the BAT of the BWP of the CC belonging to TAG 2. And mapping a first slot (i.e., the fifth slot described above) located after T6 to a point in time on a time domain resource corresponding to BWP2 (i.e., the first BWP described above) having the smallest SCS among CCs belonging to TAG3 according to at least one of TA of TAG2 and TA of TAG3 (or irrespective of TA), that is, mapping a first symbol located in the first slot located after T6 to a symbol position on the time domain resource corresponding to BWP2, and mapping a next slot located after the point in time on the time domain resource corresponding to BWP2 as a BAT of BWP belonging to a CC of TAG 3.

Example 26: as shown in fig. 12, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is mapped to a first time point T2 (i.e., a timing start symbol) on the time domain resource corresponding to BWP 1; then, according to the SCS of BWP1, Y symbols are counted from T2, and the first slot (i.e., the fifth slot) located after the Y-th symbol (T6, i.e., the ninth symbol) is taken as the fourth slot corresponding to TAG2, so that the first slot is taken as the BAT of the BWP of the CC belonging to TAG 2. And mapping a first slot (i.e., the fifth slot described above) located after T6 to a point in time on a corresponding time domain resource of BWP2 (i.e., the first BWP described above) having the smallest SCS among CCs belonging to TAG3 according to at least one of TA of TAG2 and TA of TAG3 (or irrespective of TA), that is, mapping a first symbol located in the first slot located after T6 to a symbol position on the corresponding time domain resource of BWP2, and mapping a next slot located after the point in time on the corresponding time domain resource of BWP2 as a BAT of BWP of CCs belonging to TAG 3.

And a third case: the reference BWP is the BWP where the ACK is located, and the ACK is the BWP in the target BWP group and the BWP where SCS is the smallest in the BWP where the ACK is located;

alternatively, in the above case three, the timing start symbol may be a seventh symbol.

Based on the third scenario, in one possible implementation, the target BWP may be the BWP where the ACK is located. The fourth slot may be the first slot after Y symbols after the timing start symbol on the time domain resource corresponding to the BWP where the ACK is located.

In this embodiment of the present application, in the case where the target BWP is the BWP where the ACK is located, in the target BWP group, the BAT of the BWP belonging to the same TAG group is the sixth slot.

The sixth slot may be a first slot located after the tenth symbol on a time domain resource corresponding to a third BWP, and the third BWP may be a BWP with the smallest SCS in CCs belonging to the same TAG group.

In one implementation, the tenth symbol may be a symbol determined according to the fourth slot. It may be appreciated that the tenth symbol may be a symbol corresponding to a mapping position of the fourth slot on a time domain resource corresponding to the third BWP. That is, the tenth symbol may be a symbol corresponding to a mapping position of the first symbol of the fourth slot on the time domain resource corresponding to the BWP.

In another implementation, the tenth symbol is a symbol determined from the fourth slot and the eighth TA. Wherein, the eighth TA may include at least one of the following: and the TAG corresponding to the TAG to which the third BWP belongs and the TAG corresponding to the TAG to which the ACK belongs.

It may be appreciated that the tenth symbol may be a symbol corresponding to a mapping position of the fourth slot on the time domain resource corresponding to the third BWP, where the symbol is subtracted and/or added with the symbol corresponding to the eighth TA. Alternatively, the tenth symbol may be a symbol corresponding to a fourth slot (for example, the first symbol of the fourth slot) after the mapping position on the time domain resource corresponding to the third BWP is backed off and/or advanced forward by an eighth TA. Where backward backoff refers to the number of symbols before (before) the mapping position of the fourth slot (e.g., the first symbol of the fourth slot) on the time domain resource corresponding to the third BWP, and forward refers to the number of symbols after (after/next) the mapping position of the fourth slot (e.g., the first symbol of the fourth slot) on the time domain resource corresponding to the third BWP. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

For a specific example of how to determine the tenth symbol, reference may be made to the above embodiment, and the description of the determination of the fourth symbol is omitted herein for avoiding repetition.

An implementation manner of the third above case (BWP where both the reference BWP and the target BWP are ACK) is exemplarily described below with reference to the accompanying drawings.

Assuming that the CC to which the BWP where the ACK belongs (hereinafter, BWP 0) belongs to TAG1, the CCs to which the BWP in the target BWP group belongs all belong to TAG2. If the SCS of BWP1 (i.e., the third BWP) is the smallest among CCs belonging to TAG2, BWP1 is used as the BWP of the CC belonging to TAG2 for determining BAT.

Example 27: as shown in fig. 13, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is determined as a timing start symbol, and according to the SCS of BWP0, the first slot located after the Y-th symbol is taken as the fourth slot according to the Y-th symbols from T0, so that according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG2 where BWP0 is located (or without considering TA), the first slot is mapped to a time point on the time domain resource corresponding to BWP1 (i.e., the third BWP), and the next slot located after the time point is taken as the BAT of the BWP of the CC belonging to TAG2 on the time domain resource corresponding to BWP 1.

Another possible case is: the CCs to which BWP in the target BWP group belong to different TAGs.

Let the CC to which the BWP where the ACK belongs (hereinafter, BWP 0) belong belongs to TAG1, the BWP in the target BWP group belongs to the CC to which part belongs to TAG2, and the other part belongs to TAG3. If SCS of BWP1 is minimum in CC belonging to TAG2, BWP1 is used as a third BWP corresponding to TAG 2; and if the SCS of BWP2 is the smallest in the CCs belonging to TAG3, taking BWP2 as a third BWP corresponding to TAG3.

Example 28: as shown in fig. 14, T0 (the last symbol occupied by ACK on BWP0, i.e., the seventh symbol) is determined as a timing start symbol, and according to the SCS of BWP0, the first slot (the first slot) located after the Y-th symbol is set as the fourth slot, with a number of Y symbols starting from T0. Then, according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG2 where BWP0 is located (or without considering the TA), mapping the first slot to a time point on the time domain resource corresponding to BWP1 (i.e., the third BWP corresponding to TAG 2), and taking the next slot located after the time point on the time domain resource corresponding to BWP1 as the BAT of the BWP of the CC belonging to TAG 2. And mapping the first slot to a time point on a time domain resource corresponding to BWP2 (i.e., a third BWP corresponding to TAG 3) according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG3 (or without considering the TA) where BWP0 is located, and taking the next slot located after the time point as the BAT of the BWP of the CC belonging to TAG3 on the time domain resource corresponding to BWP 2.

Based on the third case, in another possible implementation manner, the target BWP is a first BWP, and the first BWP is the BWP with the smallest SCS in the third TAG. In this case, the fourth slot may be the first slot located after the eleventh symbol on the time domain resource corresponding to the first BWP.

In one implementation, the eleventh symbol may be a symbol determined according to the twelfth symbol. The twelfth symbol may be a Y-th symbol located after the timing start symbol on the time domain resource corresponding to the BWP where the ACK is located. It may be appreciated that the eleventh symbol may be a symbol corresponding to a mapping position of the twelfth symbol on the time domain resource corresponding to the first BWP.

In another implementation, the eleventh symbol may be a symbol determined according to the twelfth symbol and the fifth TA. Wherein, the fifth TA may include at least one of the following: and the TAs corresponding to the third TAG and the TAs corresponding to the TAGs to which the BWP belongs are located in the ACK.

It is understood that the eleventh symbol may be a symbol corresponding to a mapping position of the twelfth symbol on the time domain resource corresponding to the first BWP minus and/or plus a symbol corresponding to the fifth TA. Alternatively, the eleventh symbol may be a symbol corresponding to a twelfth symbol after the mapping position on the time domain resource corresponding to the first BWP is backed off and/or advanced forward by a fifth TA. Wherein, the backward backoff refers to the number of symbols before (before) the mapping position of the twelfth symbol on the time domain resource corresponding to the first BWP, and the forward direction refers to the number of symbols after (after/next) the mapping position of the twelfth symbol on the time domain resource corresponding to the first BWP. If the mapping position is in a symbol n, m symbols are backward rolled from the symbol n, then the symbol is a symbol (n-m), and k symbols are forward rolled from the symbol n, then the symbol is a symbol (n+k).

For a specific example of how to determine the eleventh symbol, reference may be made to the above embodiment, and the description of the determination of the fifth symbol is omitted herein for avoiding repetition.

Based on the above-described third case, in the case where the target BWP is the first BWP, the BAT of the BWP belonging to the CC of the third TAG in the target BWP group is the fourth slot.

Another implementation manner of the third above case (reference BWP is the BWP where ACK is located, and target BWP is the first BWP) is exemplarily described below with reference to the accompanying drawings.

Example 29: as shown in fig. 15, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is determined as a timing start symbol, Y symbols from T0 are mapped to T4 (i.e., the eleventh symbol) on the time domain resource corresponding to BWP1 according to at least one of TA corresponding to TAG1 and TA corresponding to TAG2 where BWP0 is located according to SCS of BWP0, and the first slot after T4 is regarded as a fourth slot, thereby the first slot is regarded as BAT of BWP of CC belonging to TAG2.

Example 30: as shown in fig. 16, T0 (the last symbol occupied by ACK on BWP0, i.e., the seventh symbol) is determined as a timing start symbol, and according to SCS of BWP0, Y symbols starting from T0, the Y-th symbol (i.e., the twelfth symbol, denoted as T3) is mapped to T5 (i.e., the eleventh symbol) on the time domain resource corresponding to BWP1, and the first slot after T5 is taken as the fourth slot, thereby taking the first slot as BAT of BWP of CC belonging to TAG 2.

Let the CC to which the BWP where the ACK belongs (hereinafter, BWP 0) belong belongs to TAG1, the BWP in the target BWP group belongs to the CC to which part belongs to TAG2, and the other part belongs to TAG3. If SCS of BWP1 is minimum in CC belonging to TAG2, BWP1 is used as target BWP corresponding to TAG 2; and if the SCS of BWP2 is the smallest in the CCs belonging to TAG3, taking BWP2 as a target BWP corresponding to TAG3.

Example 31: as shown in fig. 17, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is determined as a timing start symbol, and Y symbols from T0 are counted according to the SCS of BWP 0. Then, according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG2 where BWP0 is located, a Y-th symbol (i.e., the twelfth symbol, denoted as T3) is mapped to TAG2-T4 (i.e., an eleventh symbol corresponding to TAG 2) on the time domain resource corresponding to BWP1, and a first slot located after TAG2-T4 is used as a fourth slot, so that the first slot is used as a BAT of the BWP of the CC belonging to TAG 2. And mapping the Y-th symbol (i.e., the twelfth symbol, denoted as T3) to TAG3-T4 (i.e., the eleventh symbol corresponding to TAG 3) on the time domain resource corresponding to BWP2 according to at least one of the TA corresponding to TAG1 and the TA corresponding to TAG3 where BWP0 is located, and taking the first slot located after TAG3-T4 as the fourth slot, thereby taking the first slot as the BAT of BWP belonging to the CC of TAG3.

Example 32: as shown in fig. 18, T0 (the last symbol occupied by the ACK on BWP0, i.e., the seventh symbol) is determined as a timing start symbol, and Y symbols from T0 are counted according to the SCS of BWP 0. Then, the Y-th symbol (i.e., the twelfth symbol described above, denoted as T3) is mapped to TAG2-T4 (i.e., the eleventh symbol corresponding to TAG 2) on the time domain resource corresponding to the BWP1, and the first slot located after TAG2-T5 is taken as the fourth slot, so that the first slot is taken as the BAT of the BWP belonging to the CC of TAG 2. And mapping the Y-th symbol (i.e., the twelfth symbol, denoted as T3) to TAG3-T5 (i.e., the eleventh symbol corresponding to TAG 3) on the time domain resource corresponding to the BWP2, and taking a first slot located after the TAG3-T5 as a fourth slot, thereby taking the first slot as the BAT of the BWP belonging to the CC of TAG 3.

In the method for determining the beam application time provided in the embodiment of the present invention, since the BWP of the CC belonging to one TAG has a certain association relationship (for example, SCS is the same or SCS is a multiple relationship) in the time domain, when the CCs belonging to the BWP in the target BWP group belong to different TAGs or the TAGs belonging to the BWP of the BWP group and the TAGs belonging to the BWP CC belonging to the ACK are different, by determining the timing start symbol corresponding to the reference BWP, determining the first slot corresponding to the target BWP, and determining the BAT of the BWP of the CC belonging to each TAG in the target BWP group according to the first slot, the beam validation time of the BWP of the same TAG of the CC belonging to the target BWP group is identical, that is, the beams of the p of the same TAG of the CC belonging to the target BWP are aligned, so that data transmission can be performed correctly.

It should be noted that, in the method for determining a beam application time provided in the embodiments of the present application, the execution body may be a beam application time determining device, or a control module in the beam application time determining device for executing the method for determining a beam application time. In the embodiment of the present application, a method for determining a time for performing beam application by BAT determination is taken as an example, and the beam application time determining apparatus provided in the embodiment of the present application is described.

As shown in fig. 20, the embodiment of the present application provides a beam application time determining apparatus 400, where the beam application time determining apparatus 400 includes a determining module 401; a determining module 401, configured to determine a timing start symbol corresponding to the reference CC according to a first symbol, where the first symbol is a last symbol occupied by ACK of the beam indication information; determining a first slot corresponding to a target CC according to the timing starting point symbol, wherein the target CC is the CC where the ACK is positioned or the first CC belonging to the first TAG in the target CC group; and determining BAT of the CC belonging to each TAG in the target CC group according to the first slot.

Optionally, the reference CC is a CC in which the ACK is located, the first CC, or a second CC belonging to a second TAG in the target CC group.

Optionally, the reference CC is a first CC, where the first CC is a CC with a minimum subcarrier spacing SCS in the first TAG; the timing starting point symbol is a symbol determined according to the first symbol; or the timing starting point symbol is a symbol determined according to the first symbol and the first time advance TA; wherein the first TA comprises at least one of: the TAs corresponding to the first TAG and the TAs corresponding to the TAGs to which the CC to which the ACK belongs.

Optionally, the target CC is a first CC; the first slot is the first slot after Y symbols after the timing start point symbol on the time domain resource corresponding to the first CC.

Optionally, in the target CC group, the BAT of the CC belonging to the first TAG is the first slot.

Optionally, the reference CC is a second CC, where the second CC is a CC with the smallest SCS in the target CC group; the timing starting point symbol is a symbol determined according to the first symbol; or the timing starting point symbol is a symbol determined according to the first symbol and the second TA; wherein the second TA comprises at least one of: and the TAs corresponding to the second TAG and the TAs corresponding to the TAG of the CC to which the ACK belongs.

Optionally, the target CC is a first CC, where the first CC is a CC with the smallest SCS in the first TAG; the first slot is the first slot located after the second symbol on the time domain resource corresponding to the first CC.

Optionally, the second symbol is a symbol determined according to the second slot; or the second symbol is a symbol determined according to the second slot and the third TA; the second slot is a first slot located after a third symbol on a time domain resource corresponding to the second CC, the third symbol is a Y-th symbol located after a timing start symbol on the time domain resource corresponding to the second CC, and the third TA includes at least one of the following: TA corresponding to the first TAG and TA corresponding to the second TAG.

Optionally, the second symbol is a symbol determined according to the third symbol, or the second symbol is a symbol determined according to the third symbol and the third TA; the third symbol is a Y-th symbol located after the timing start symbol on the time domain resource corresponding to the second CC, and the third TA includes at least one of the following: TA corresponding to the first TAG and TA corresponding to the second TAG.

Optionally, the BAT of the CC belonging to the first TAG is the first slot, and the BAT of the CC belonging to the second TAG is the second slot.

Optionally, the reference CC is the CC in which the ACK is located, and the CC in which the ACK is located is the CC in the target CC group and the CC in which the SCS is the smallest in the CCs in which the ACK is located; the timing start symbol is the first symbol.

Optionally, the target CC is the CC in which the ACK is located; the first slot is the first slot after Y symbols after the timing start symbol on the time domain resource corresponding to the CC where the ACK is located.

Optionally, in the target CC group, BAT of the CC belonging to the same TAG group is a third slot; the third slot is the first slot after the fourth symbol on the time domain resource corresponding to the third CC, and the third CC is the CC with the smallest SCS in the same TAG group.

Optionally, the fourth symbol is a symbol determined according to the first slot; or the fourth symbol is a symbol determined according to the first slot and the fourth TA; wherein the fourth TA comprises at least one of: and the TAG corresponding to the TAG to which the third CC belongs and the TAG corresponding to the TAG to which the CC to which the ACK belongs.

Optionally, the target CC is a first CC, where the first CC is a CC with the smallest SCS in the first TAG; the first slot is the first slot located after the fifth symbol on the time domain resource corresponding to the first CC.

Optionally, the fifth symbol is a symbol determined according to the sixth symbol; or the fifth symbol is a symbol determined from the sixth symbol and the first TA; the sixth symbol is a Y-th symbol located after the timing start symbol on the time domain resource corresponding to the CC where the ACK is located, and the first TA includes at least one of the following: the TAs corresponding to the first TAG and the TAs corresponding to the TAGs to which the CC to which the ACK belongs.

Optionally, the CC in the target CC group and the CC in which the ACK is located belong to at least two TAGs.

Optionally, the CCs in the target CC set belong to at least two TAGs; at least two TAGs correspond to the same TCI state pool, or at least two TAGs correspond to different TCI state pools

According to the BTA determining device provided by the embodiment of the invention, as the CCs belonging to one TAG have a certain association relationship (such as SCS is the same or SCS is multiplied), when the CCs in the target CC group belong to different TAGs or the TAGs to which the CCs in the target CC group belong are different from the TAGs to which the CCs in the ACK belong, the timing starting point symbol corresponding to the reference CC is determined, the first slot corresponding to the target CC is determined, and the BAT of the CCs belonging to each TAG in the target CC group is determined according to the first slot, so that the effective time of the beams of the CCs belonging to the same TAG in the target CC group is consistent, namely, the beams of the CCs belonging to the same TAG are aligned, and data transmission can be performed correctly.

As shown in fig. 20, the embodiment of the present application provides a beam application time determining apparatus 400, where the beam application time determining apparatus 400 includes a determining module 401; a determining module 401, configured to determine a timing start symbol corresponding to the reference BWP according to a seventh symbol, where the seventh symbol is a last symbol occupied by the ACK of the beam indication information; and determining a fourth slot corresponding to a target BWP according to the timing start symbol, where the target BWP is the BWP where the ACK is located or the first BWP of the third TAG to which the carrier element CC belongs in the target BWP group; and determining BATs of BWPs belonging to the CC of each TAG in the target BWP group according to the fourth slot.

Optionally, the reference BWP is a BWP where the ACK is located, the first BWP, or a second BWP in the target BWP group, where the CC belongs to the fourth TAG.

Optionally, the reference BWP is a first BWP, and the first BWP is a BWP with the smallest SCS in the CC belonging to the third TAG; the timing starting point symbol is a symbol determined according to the seventh symbol; or the timing starting point symbol is a symbol determined according to the seventh symbol and the fifth TA; wherein the fifth TA comprises at least one of: and the TA corresponding to the third TAG and the TA corresponding to the TAG of the CC of the BWP to which the ACK belongs.

Optionally, the target BWP is a first BWP; the fourth slot is the first slot after Y symbols after the timing start symbol on the time domain resource corresponding to the first BWP.

Optionally, in the target BWP group, the BAT of the BWP belonging to the CC of the third TAG is the fourth slot.

Optionally, the reference BWP is a second BWP, and the second BWP is a BWP with the smallest SCS in the target BWP group; the timing starting point symbol is a symbol determined according to the seventh symbol; or the timing starting point symbol is a symbol determined according to the seventh symbol and the sixth TA; wherein the sixth TA comprises at least one of: and the TA corresponding to the fourth TAG and the TA corresponding to the TAG of the CC of the BWP to which the ACK belongs.

Optionally, the target BWP is a first BWP, and the first BWP is a BWP with the smallest SCS in the CC belonging to the third TAG; the fourth slot is the first slot located after the eighth symbol on the time domain resource corresponding to the first BWP.

Optionally, the eighth symbol is a symbol determined according to the fifth slot; or the eighth symbol is a symbol determined according to the fifth slot and the seventh TA; the fifth slot is a first slot located after the ninth symbol on a time domain resource corresponding to the second BWP, the ninth symbol is a Y-th symbol located after the timing start symbol on a time domain resource corresponding to the second BWP, and the seventh TA includes at least one of the following: TA corresponding to the third TAG and TA corresponding to the fourth TAG.

Optionally, the eighth symbol is a symbol determined according to the ninth symbol, or the eighth symbol is a symbol determined according to the ninth symbol and the seventh TA; the ninth symbol is a Y-th symbol located after the timing start symbol on the time domain resource corresponding to the second BWP, and the seventh TA includes at least one of the following: TA corresponding to the third TAG and TA corresponding to the fourth TAG.

Optionally, the BAT of BWP belonging to the CC of the third TAG is the fourth slot, and the BAT of BWP belonging to the CC of the fourth TAG is the fifth slot.

Optionally, the reference BWP is an ACK-located BWP, and the ACK-located BWP is a BWP in the target BWP group and a BWP with the minimum SCS in the BWP; the timing start symbol is the seventh symbol.

Optionally, the target BWP is the BWP where the ACK is located; the fourth slot is the first slot after Y symbols after the timing start symbol on the time domain resource corresponding to the BWP where the ACK is located.

Optionally, in the target BWP group, the BAT of the BWP of the CC belonging to the same TAG group is a sixth slot; the sixth slot is the first slot after the tenth symbol on the time domain resource corresponding to the third BWP, where the third BWP is the BWP with the smallest SCS in CCs belonging to the same TAG group.

Optionally, the tenth symbol is a symbol determined according to the fourth slot; or the tenth symbol is a symbol determined according to the fourth slot and the eighth TA; wherein the eighth TA comprises at least one of: the TAG to which the CC to which the third BWP belongs corresponds, and the TAG to which the CC to which the ACK belongs corresponds.

Optionally, the target BWP is a first BWP, and the first BWP is a BWP with the smallest SCS among the BWPs included in the CC in the third TAG; the fourth slot is the first slot located after the eleventh symbol on the time domain resource corresponding to the first BWP.

Optionally, the eleventh symbol is a symbol determined from the twelfth symbol; or the eleventh symbol is a symbol determined from the twelfth symbol and the fifth TA; the twelfth symbol is a Y-th symbol located after the timing start symbol on the time domain resource corresponding to the BWP where the ACK is located, and the fifth TA includes at least one of the following: the first TAG corresponds to the TA and the ACK belongs to the TAG corresponding to the CC to which the BWP belongs.

Optionally, the CC to which the BWP in the target BWP group belongs and the CC to which the BWP to which the ACK belongs belong to at least two TAGs.

Optionally, the CC to which the BWP in the target BWP group belongs to at least two TAGs; at least two TAGs correspond to the same TCI state pool, or at least two TAGs correspond to different TCI state pools.

In the BTA determining apparatus provided in the embodiment of the present invention, since the BWP of the CC belonging to one TAG has a certain association relationship (for example, SCS is the same or SCS is a multiple relationship) in the time domain, when the BWP of the target BWP group belongs to a different TAG or the TAG of the BWP group belongs to a different TAG from the TAG of the BWP group to which the ACK belongs, by determining the timing start symbol corresponding to the reference BWP and determining the first slot corresponding to the target BWP, and according to the first slot, determining the BAT of the BWP of the CC belonging to each TAG in the target BWP group, the beam validation time of the BWP of the target BWP group belonging to the same TAG is the same, that is, the beams of the BWP of the same TAG are aligned, so that data transmission can be performed correctly.

The beam application time determining device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.

The beam application time determining device provided in the embodiment of the present application can implement each process implemented by the above method embodiment, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Optionally, as shown in fig. 21, the embodiment of the present application further provides a communication device 500, including a processor 501, a memory 502, and a program or an instruction stored in the memory 502 and capable of being executed on the processor 501, where, for example, the communication device 500 is a terminal, the program or the instruction is executed by the processor 501 to implement each process of the above-mentioned beam application time determining method embodiment, and achieve the same technical effects. When the communication device 500 is a network side device, the program or the instruction, when executed by the processor 501, implements the processes of the above-described beam application time determining method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for determining a timing starting point symbol corresponding to the reference CC according to a first symbol, and the first symbol is the last symbol occupied by ACK of beam indication information; determining a first slot corresponding to a target CC according to the timing starting point symbol, wherein the target CC is the CC where the ACK is positioned or the first CC belonging to the first TAG in the target CC group; and determining BAT of the CC belonging to each TAG in the target CC group according to the first slot. Or the processor is configured to determine, according to a seventh symbol, a timing start symbol corresponding to the reference BWP, where the seventh symbol is a last symbol occupied by ACK of the beam indication information; and determining a fourth slot corresponding to a target BWP according to the timing start symbol, where the target BWP is the BWP where the ACK is located or the first BWP of the third TAG to which the carrier element CC belongs in the target BWP group; and according to the fourth slot, determining the BAT of the BWP belonging to the CC of each TAG in the target BWP group, where the BAT embodiment corresponds to the terminal-side method embodiment, and each implementation procedure and implementation manner of the method embodiment are applicable to the terminal embodiment, and the same technical effect can be achieved. Specifically, fig. 22 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 100 includes, but is not limited to: at least some of the components of the radio frequency unit 101, the network module 102, the audio output unit 103, the input unit 104, the sensor 105, the display unit 106, the user input unit 107, the interface unit 108, the memory 109, and the processor 110.

Those skilled in the art will appreciate that the terminal 100 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 110 by a power management system to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 22 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from a network side device, the radio frequency unit 101 processes the downlink data with the processor 110; in addition, the uplink data is sent to the network side equipment. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 109 may be used to store software programs or instructions and various data. The memory 109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 109 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The processor 110 is configured to determine a timing start symbol corresponding to the reference CC according to a first symbol, where the first symbol is a last symbol occupied by ACK of the beam indication information; determining a first slot corresponding to a target CC according to the timing starting point symbol, wherein the target CC is the CC where the ACK is positioned or the first CC belonging to the first TAG in the target CC group; and determining BAT of the CC belonging to each TAG in the target CC group according to the first slot.

According to the terminal provided by the embodiment of the invention, as the CCs belonging to one TAG have a certain association relationship (such as SCS is the same or SCS is a multiple relationship) in the time domain, when the CCs in the target CC group belong to different TAGs or the TAGs to which the CCs in the target CC group belong are different from the TAGs to which the CCs in the ACK belong, the timing starting point symbol corresponding to the reference CCs is determined, the first slot corresponding to the target CCs is determined, and the BAT of the CCs belonging to each TAG in the target CC group is determined according to the first slot, so that the effective time of the beams of the CCs belonging to the same TAG in the target CC group is consistent, namely, the beams of the CCs belonging to the same TAG are aligned, and data transmission can be performed correctly.

Or, the processor 110 is configured to determine a timing start symbol corresponding to the reference BWP according to a seventh symbol, where the seventh symbol is a last symbol occupied by the ACK of the beam indication information; and determining a fourth slot corresponding to a target BWP according to the timing start symbol, where the target BWP is the BWP where the ACK is located or the first BWP of the third TAG to which the carrier element CC belongs in the target BWP group; and determining BATs of BWPs belonging to the CC of each TAG in the target BWP group according to the fourth slot.

In the terminal provided in this embodiment of the present invention, since the BWP of the CC belonging to one TAG has a certain association relationship (for example, SCS is the same or SCS is a multiple relationship) in the time domain, when the BWP of the target BWP group belongs to a different TAG or the TAG to which the BWP of the target BWP group belongs is different from the TAG to which the CC to which the BWP of the ACK belongs, by determining the timing start symbol corresponding to the reference BWP and determining the first slot corresponding to the target BWP, and determining the BAT of the BWP of the CC belonging to each TAG in the target BWP group according to the first slot, the beam time of the BWP of the CC belonging to the same TAG in the target BWP group can be made to be identical, that is, the beams of the BWP of the CC belonging to the same TAG can be aligned, so that data transmission can be performed correctly.

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the processor is used for determining a timing starting point symbol corresponding to the reference CC according to a first symbol, and the first symbol is the last symbol occupied by ACK of beam indication information; determining a first slot corresponding to a target CC according to the timing starting point symbol, wherein the target CC is the CC where the ACK is positioned or the first CC belonging to the first TAG in the target CC group; and determining BAT of the CC belonging to each TAG in the target CC group according to the first slot. Or the processor is configured to determine, according to a seventh symbol, a timing start symbol corresponding to the reference BWP, where the seventh symbol is a last symbol occupied by ACK of the beam indication information; and determining a fourth slot corresponding to a target BWP according to the timing start symbol, where the target BWP is the BWP where the ACK is located or the first BWP of the third TAG to which the carrier element CC belongs in the target BWP group; and determining BATs of BWPs belonging to the CC of each TAG in the target BWP group according to the fourth slot. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Optionally, the embodiment of the application also provides network side equipment. As shown in fig. 23, the network side device 700 includes: an antenna 71, a radio frequency device 72, a baseband device 73. The antenna 71 is connected to a radio frequency device 72. In the uplink direction, the radio frequency device 72 receives information via the antenna 51, and transmits the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes information to be transmitted, and transmits the processed information to the radio frequency device 72, and the radio frequency device 72 processes the received information and transmits the processed information through the antenna 71.

The above-described band processing means may be located in the baseband apparatus 73, and the method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 73, where the baseband apparatus 73 includes the processor 74 and the memory 75.

The baseband device 73 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 23, where one chip, for example, a processor 74, is connected to the memory 75, so as to call a program in the memory 75, and perform the network side device operation shown in the above method embodiment.

The baseband device 73 may also include a network interface 76 for interacting with the radio frequency device 72, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the network side device of the embodiment of the present invention further includes: instructions or programs stored in the memory 75 and executable on the processor 74, the processor 74 invokes the instructions or programs in the memory 75 to perform the methods performed by the modules shown in fig. 20 and achieve the same technical effects, and are not repeated here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the embodiment of the method for determining the beam application time are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, implement each process of the above-mentioned beam application time determining method embodiment, and achieve the same technical effect, so that repetition is avoided, and no further description is given here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method for determining a beam application time, comprising:

the communication equipment determines a timing starting point symbol corresponding to a reference carrier unit (CC) according to a first symbol, wherein the first symbol is the last symbol occupied by a response message (ACK) of beam indication information;

the communication equipment determines a first time slot corresponding to a target CC according to the timing starting point symbol, wherein the target CC is a CC where ACK is located or a first CC belonging to a first time advance group TAG in a target CC group;

and the communication equipment determines the beam application time BAT of the CC belonging to each TAG in the target CC group according to the first slot.

2. The method of claim 1, wherein the reference CC is the first CC, and the first CC is a CC with a minimum subcarrier spacing SCS in the first TAG;

the timing starting point symbol is a symbol determined according to the first symbol; or alternatively

The timing starting point symbol is a symbol determined according to the first symbol and a first time advance TA;

wherein the first TA comprises at least one of: and the TA corresponding to the first TAG and the TA corresponding to the TAG of the CC to which the ACK belongs.

3. The method of claim 2, wherein the target CC is the first CC;

The first slot is the first slot after Y symbols after the timing start point symbol on the time domain resource corresponding to the first CC.

4. A method according to claim 3, characterized in that the BAT of the CC belonging to the first TAG in the target CC group is the first slot.

5. The method according to claim 1, wherein the reference CC is the second CC, and the second CC is a CC with the smallest SCS in the target CC set;

The timing starting point symbol is a symbol determined according to the first symbol and the second TA;

wherein the second TA comprises at least one of: and the TA corresponding to the second TAG and the TA corresponding to the TAG of the CC to which the ACK belongs.

6. The method of claim 5, wherein the target CC is the first CC, and the first CC is a CC with a smallest SCS in the first TAG;

the first slot is the first slot located after the second symbol on the time domain resource corresponding to the first CC.

7. The method of claim 6, wherein the step of providing the first layer comprises,

the second symbol is a symbol determined according to a second slot; or alternatively

The second symbol is a symbol determined according to the second slot and the third TA;

the second slot is a first slot located after a third symbol on a time domain resource corresponding to the second CC, the third symbol is a Y-th symbol located after a timing start symbol on the time domain resource corresponding to the second CC, and the third TA includes at least one of the following: and the TA corresponding to the first TAG and the TA corresponding to the second TAG.

8. The method of claim 6, wherein the step of providing the first layer comprises,

the second symbol is a symbol determined according to the third symbol, or

The second symbol is a symbol determined according to the third symbol and the third TA;

the third symbol is a Y-th symbol located after the timing start symbol on the time domain resource corresponding to the second CC, and the third TA includes at least one of the following: and the TA corresponding to the first TAG and the TA corresponding to the second TAG.

9. Method according to any of claims 6 to 8, characterized in that the BAT of the CC belonging to the first TAG is the first slot and the BAT of the CC belonging to the second TAG is the second slot.

10. The method of claim 1, wherein the reference CC is a CC in which the ACK is located, and the CC in which the ACK is located is a CC in the target CC group and a CC in which SCS is minimum in the CCs in which the ACK is located;

The timing start symbol is the first symbol.

11. The method of claim 10, wherein the target CC is a CC in which the ACK is located;

and the first slot is the first slot after Y symbols after the timing starting point symbol on the time domain resource corresponding to the CC where the ACK is located.

12. The method of claim 11, wherein, in the target CC group, the BAT of CCs belonging to the same TAG group is a third slot;

the third slot is a first slot located after the fourth symbol on a time domain resource corresponding to a third CC, where the third CC is a CC with the smallest SCS in the same TAG group.

13. The method of claim 12, wherein the step of determining the position of the probe is performed,

the fourth symbol is a symbol determined according to the first slot; or alternatively

The fourth symbol is a symbol determined according to the first slot and the fourth TA;

wherein the fourth TA comprises at least one of: and the TA corresponding to the TAG to which the third CC belongs and the TA corresponding to the TAG to which the CC to which the ACK belongs.

14. The method of claim 10, wherein the target CC is the first CC, and the first CC is a CC with a smallest SCS in the first TAG;

The first slot is the first slot located after the fifth symbol on the time domain resource corresponding to the first CC.

15. The method of claim 14, wherein the step of providing the first information comprises,

the fifth symbol is a symbol determined according to the sixth symbol; or alternatively

The fifth symbol is a symbol determined according to the sixth symbol and the first TA;

the sixth symbol is a Y-th symbol located after the timing start symbol on a time domain resource corresponding to the CC where the ACK is located, and the first TA includes at least one of the following: and the TA corresponding to the first TAG and the TA corresponding to the TAG of the CC to which the ACK belongs.

16. The method according to claim 14 or 15, wherein the BAT of a CC belonging to the first TAG in the target CC group is the first slot.

17. The method of claim 1, wherein the CC in the target CC group and the CC in which the ACK is located belong to at least two TAGs.

18. The method according to claim 1, wherein CCs in the target group of CCs belong to at least two TAGs;

the at least two TAGs correspond to the same transmission configuration indication TCI state pool, or the at least two TAGs correspond to different TCI state pools.

19. A method for determining a beam application time, comprising:

the communication device determines a timing starting point symbol corresponding to the reference bandwidth part BWP according to a seventh symbol, wherein the seventh symbol is the last symbol occupied by the response message ACK of the beam indication information;

the communication device determines a fourth slot corresponding to a target BWP according to the timing start symbol, where the target BWP is a BWP where the ACK is located or a first BWP where a carrier element CC in the target BWP group belongs to a third time advance group TAG;

the communication device determines a beam application time BAT of the BWP of the CC belonging to each TAG in the target BWP group according to the fourth slot.

20. The method according to claim 19, wherein the reference BWP is the first BWP, which is the BWP with the smallest subcarrier spacing SCS in the CC belonging to the third TAG;

the timing starting point symbol is a symbol determined according to the seventh symbol; or alternatively

The timing starting point symbol is a symbol determined according to the seventh symbol and the fifth TA;

wherein the fifth TA comprises at least one of: and the TA corresponding to the third TAG and the TA corresponding to the TAG of the CC of the BWP to which the ACK belongs.

21. The method according to claim 20, wherein the target BWP is the first BWP;

the fourth slot is the first slot after Y symbols after the timing start point symbol on the time domain resource corresponding to the first BWP.

22. The method according to claim 21, wherein the BAT of the BWP belonging to the CC of the third TAG in the target BWP group is the fourth slot.

23. The method according to claim 19, wherein the reference BWP is the second BWP, which is the BWP with the smallest SCS in the target BWP group;

The timing starting point symbol is a symbol determined according to the seventh symbol and the sixth TA;

wherein the sixth TA comprises at least one of: and the TA corresponding to the fourth TAG and the TA corresponding to the TAG of the CC of the BWP to which the ACK belongs.

24. The method according to claim 23, wherein the target BWP is the first BWP, which is the BWP with the smallest SCS in the CC belonging to the third TAG;

the fourth slot is the first slot located after the eighth symbol on the time domain resource corresponding to the first BWP.

25. The method of claim 24, wherein the step of determining the position of the probe is performed,

the eighth symbol is a symbol determined according to the fifth slot; or alternatively

The eighth symbol is a symbol determined according to the fifth slot and the seventh TA;

the fifth slot is a first slot located after a ninth symbol on a time domain resource corresponding to the second BWP, the ninth symbol is a Y-th symbol located after a timing start symbol on the time domain resource corresponding to the second BWP, and the seventh TA includes at least one of the following: and the TA corresponding to the third TAG and the TA corresponding to the fourth TAG.

26. The method of claim 24, wherein the step of determining the position of the probe is performed,

the eighth symbol is a symbol determined according to the ninth symbol, or

The eighth symbol is a symbol determined according to the ninth symbol and the seventh TA;

the ninth symbol is a Y-th symbol located after the timing start symbol on the time domain resource corresponding to the second BWP, and the seventh TA includes at least one of the following: and the TA corresponding to the third TAG and the TA corresponding to the fourth TAG.

27. Method according to any one of claims 24 to 26, characterized in that the BAT of BWP belonging to the CC of the third TAG is the fourth slot and the BAT of BWP belonging to the CC of the fourth TAG is the fifth slot.

28. The method according to claim 19, wherein the reference BWP is the BWP where the ACK is located, and the BWP where the ACK is located is the BWP in the target BWP group and the BWP where the SCS is the smallest in the BWP where the ACK is located;

the timing start symbol is the seventh symbol.

29. The method of claim 28, wherein the target BWP is a BWP where the ACK is located;

and the fourth slot is the first slot after Y symbols after the timing start point symbol on the time domain resource corresponding to the BWP where the ACK is located.

30. The method according to claim 29, wherein the BAT of the BWP of the CCs belonging to the same TAG group in the target BWP group is a sixth slot;

the sixth slot is the first slot after the tenth symbol on the time domain resource corresponding to the third BWP, where the third BWP is the BWP with the smallest SCS in CCs belonging to the same TAG group.

31. The method of claim 30, wherein the step of determining the position of the probe is performed,

the tenth symbol is a symbol determined according to the fourth slot; or alternatively

The tenth symbol is a symbol determined according to the fourth slot and the eighth TA;

wherein the eighth TA comprises at least one of: and the TAG corresponding to the CC to which the third BWP belongs and the TAG corresponding to the TAG to which the CC to which the ACK belongs.

32. The method according to claim 28, wherein the target BWP is the first BWP, and the first BWP is a BWP with the smallest SCS among the BWP included in the CC in the third TAG;

the fourth slot is the first slot located after the eleventh symbol on the time domain resource corresponding to the first BWP.

33. The method of claim 32, wherein the step of determining the position of the probe is performed,

the eleventh symbol is a symbol determined according to the twelfth symbol; or alternatively

The eleventh symbol is a symbol determined according to the twelfth symbol and the fifth TA;

the twelfth symbol is a Y-th symbol located after the timing start symbol on a time domain resource corresponding to the BWP where the ACK is located, and the fifth TA includes at least one of the following: and the TA corresponding to the first TAG and the TA corresponding to the TAG of the CC of the BWP to which the ACK belongs.

34. The method according to claim 32 or 33, wherein the BAT of a BWP belonging to the CC of the third TAG in the target BWP group is the fourth slot.

35. The method of claim 19, wherein the CC to which the BWP in the target BWP group belongs and the CC to which the BWP in which the ACK belongs belong to at least two TAGs.

36. The method according to claim 19, wherein the CC to which the BWP in the target BWP group belongs to at least two TAGs;

37. A beam application time determining apparatus, comprising:

the determining module is used for determining a timing starting point symbol corresponding to the reference carrier unit CC according to a first symbol, wherein the first symbol is the last symbol occupied by a response message ACK of the beam indication information; determining a first slot corresponding to a target CC according to the timing starting point symbol, wherein the target CC is a CC in which ACK is located or a first CC belonging to a first time advance group TAG in a target CC group; and determining the beam application time BAT of the CC belonging to each TAG in the target CC group according to the first slot.

38. A beam application time determining apparatus, comprising:

a determining module, configured to determine a timing start symbol corresponding to the reference bandwidth portion BWP according to a seventh symbol, where the seventh symbol is a last symbol occupied by a response message ACK of the beam indication information; and determining a fourth slot corresponding to a target BWP according to the timing start symbol, where the target BWP is a BWP where the ACK is located or a first BWP where a carrier element CC belonging to the target BWP group belongs to a third time advance group TAG; and determining a beam application time BAT of BWPs belonging to the CC of each TAG in the target BWP group according to the fourth slot.

39. A communication device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the beam application time determining method of any one of claims 1 to 36.

40. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the beam application time determining method according to any of claims 1-36.