CN116782303A

CN116782303A - Uplink transmission method, terminal and network equipment

Info

Publication number: CN116782303A
Application number: CN202211255663.9A
Authority: CN
Inventors: 孙荣荣; 刘昊; 孙鹏; 宋扬; 塔玛拉卡·拉盖施
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-03-09
Filing date: 2022-10-13
Publication date: 2023-09-19

Abstract

The application discloses an uplink transmission method, a terminal and network side equipment, belonging to the technical field of communication, wherein the uplink transmission method in the embodiment of the application comprises the following steps: the terminal adjusts granularity to adjust the time of the uplink transmission of the target based on the target mode and/or the timing advance TA; wherein the target means comprises at least one of: according to the first target timing advance command TAC, adjusting the time of target uplink transmission corresponding to the first target object; adjusting the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC, wherein the downlink time difference is the difference between the first downlink transmission time and the second downlink transmission time, the first downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the first target object, and the second downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the second target object; wherein the first target TAC is associated with the first target object.

Description

Uplink transmission method, terminal and network equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to an uplink transmission method, a terminal and network side equipment.

Background

In the related art, for a plurality of different objects (such as beams), sounding reference signal (Sounding Reference Signal, SRS) resources, antenna groups, transmitting and receiving points (Transmitting Receiving Point, TRP), etc.), the same Time Advance (TA) is generally adopted for a plurality of uplink transmissions by the terminal, but due to the large difference in positions of the different objects, inter-user interference exists between part of the uplink transmissions, and the performance of the uplink transmissions is reduced.

Disclosure of Invention

The embodiment of the application provides an uplink transmission method, a terminal and network side equipment, which can avoid interference among users and improve uplink transmission performance.

In a first aspect, a method for uplink transmission is provided, including: the terminal adjusts granularity to adjust the time of the uplink transmission of the target based on the target mode and/or the timing advance TA; wherein the target means comprises at least one of: according to the first target timing advance command TAC, adjusting the time of target uplink transmission corresponding to the first target object; adjusting the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC, wherein the downlink time difference is the difference between the first downlink transmission time and the second downlink transmission time, the first downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the first target object, and the second downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the second target object; wherein the first target TAC is associated with the first target object.

In a second aspect, a method for uplink transmission is provided, including: the network equipment sends a Media Access Control (MAC) CE; wherein, at least one of the following is included in the MAC CE: a first target timing advance command TAC, the first target TAC being associated with a first target object; and identifying the first target object.

In a third aspect, an apparatus for uplink transmission is provided, including: the adjusting module is used for adjusting granularity to adjust the time of uplink transmission of the target based on the target mode and/or the timing advance TA; wherein the target means comprises at least one of: according to the first target timing advance command TAC, adjusting the time of target uplink transmission corresponding to the first target object; adjusting the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC, wherein the downlink time difference is the difference between the first downlink transmission time and the second downlink transmission time, the first downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the first target object, and the second downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the second target object; wherein the first target TAC is associated with the first target object.

In a fourth aspect, an apparatus for uplink transmission is provided, including: the first transmission module is configured to send a media access control unit MAC CE, where the MAC CE includes at least one of the following: a first target timing advance command TAC, the first target TAC being associated with a first target object; and identifying the first target object.

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the steps of the method according to the first aspect.

In a seventh aspect, there is provided a network side device processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.

In an eighth aspect, a network side device is provided, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the steps of the method according to the second aspect.

In a ninth aspect, there is provided a wireless communication system comprising: a terminal and a network side device, where the terminal is configured to perform the steps of the method for uplink transmission according to the first aspect, and the network side device is configured to perform the steps of the method for uplink transmission according to the second aspect.

In a tenth 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 eleventh 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, implementing the steps of the method as described in the first aspect, or implementing the steps of the method as described in the second aspect.

In a twelfth aspect, there is provided a computer program product stored in a storage medium, the computer program product being executable by at least one processor to perform the steps of the method according to the first aspect or to perform the steps of the method according to the second aspect.

In the embodiment of the application, the terminal adjusts the time of the uplink transmission of the target according to the target mode and/or the TA adjustment granularity, wherein the target mode comprises adjusting the time of the uplink transmission of the target corresponding to the first target object according to the first target TAC and/or adjusting the time of the uplink transmission of the target corresponding to the second target object according to the downlink time difference and the first target TAC, so that on one hand, different TAs can be adopted for adjusting the uplink transmission time for different target objects, thereby ensuring the accuracy and high efficiency of the uplink transmission time adjustment, further ensuring that the uplink transmission time corresponding to each target object meets the orthogonal relationship among users, avoiding bringing about inter-user interference and achieving the purpose of improving the uplink transmission performance; on the other hand, the time of the target uplink transmission is adjusted based on the TA adjustment granularity, so that the problems of high terminal power consumption and high signaling overhead caused by frequent adjustment can be avoided, and meanwhile, the complexity of terminal implementation can be reduced.

Drawings

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

Fig. 2 is a flow chart of a method for uplink transmission according to an exemplary embodiment of the present application.

Fig. 3 is a flowchart of a method for uplink transmission according to another exemplary embodiment of the present application.

Fig. 4a is a schematic diagram of target uplink transmission time adjustment based on the same TA procedure according to an exemplary embodiment of the present application.

Fig. 4b is a schematic diagram of a periodic adjustment of a target uplink transmission time according to an exemplary embodiment of the present application.

Fig. 4c is a schematic diagram of a periodic adjustment of a target uplink transmission time according to another exemplary embodiment of the present application.

Fig. 4d is a schematic diagram of performing target uplink transmission time adjustment based on different TA processes according to another exemplary embodiment of the present application.

Fig. 4e is a schematic diagram of a target uplink transmission time adjustment based on a downlink time difference and a first target TAC according to an exemplary embodiment of the present application.

Fig. 4f is a schematic diagram of a target uplink transmission time adjustment based on a downlink time difference and a first target TAC according to another exemplary embodiment of the present application.

Fig. 5 is a flowchart of a method for uplink transmission according to another exemplary embodiment of the present application.

Fig. 6 is a schematic structural diagram of an uplink transmission apparatus according to an exemplary embodiment of the present application.

Fig. 7 is a schematic structural diagram of an uplink transmission apparatus according to an exemplary embodiment of the present application.

Fig. 8 is a schematic structural view of a terminal according to an exemplary embodiment of the present application.

Fig. 9 is a schematic structural diagram of a network side device according to an exemplary embodiment of the present application.

Detailed Description

The technical solutions of 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, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements 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 "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, 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 to be understood that reference herein to a first object is intended to broadly refer to any object that needs to be distinguished by the terms first and second.

It should be noted that the techniques described in the 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 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 air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is 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 top, 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 (weather Device), a vehicle-mounted 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 a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), 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 home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular 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 a base station in the NR system is described as an example, and the specific type of the base station is not limited. The technical scheme provided by the embodiment of the application is described in detail through some embodiments and application scenes thereof by combining the attached drawings.

As shown in fig. 2, a flowchart of a method 200 for uplink transmission according to an exemplary embodiment of the present application is provided, where the method 200 may be, but is not limited to, executed by a terminal, and in particular, may be executed by hardware and/or software installed in the terminal. In this embodiment, the method may at least include the following steps.

S210, the terminal adjusts the time of the uplink transmission of the target based on the target mode and/or TA adjustment granularity.

Wherein the target mode includes at least one of modes 1 and 2 below.

Mode 1: and adjusting the time of the target uplink transmission corresponding to the first target object according to the first target timing advance command (Timing Advance Command, TAC).

Mode 2: and adjusting the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC, wherein the downlink time difference is the difference between the first downlink transmission time and the second downlink transmission time, the first downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the first target object, and the second downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the second target object.

In the foregoing modes 1 and 2, the first target TAC is associated with the first target object, which can be understood as follows: the first target TAC is configured to notify the terminal that the uplink transmission is sent in Advance for a corresponding amount of time, such as Timing Advance (TA). For example, the first target TAC is configured to notify the TA corresponding to the first target object to the terminal, so that the terminal may adjust uplink transmission time corresponding to the first target object based on the TA, or the terminal may adjust uplink transmission time corresponding to other target objects except for the first target object according to the TA notified by the first target TAC.

Of course, in one implementation, the first target object may be, but is not limited to, SRS resource set, SRS resource, transmission configuration indication (Transmission Configuration Indicator, TCI) state, TCI state pool, antenna group, panel, TRP, resource pool index (coresetpoolndex), TAG index, and the like.

Based on this, for a scenario where there are multiple target objects, the procedure of the terminal performing the target uplink transmission time adjustment based on the target manner may be as follows.

When the target mode includes mode 1, the terminal may adjust uplink transmission time according to the target TACs corresponding to the target objects one by one, for example, adjust the uplink transmission time of the target corresponding to the first target object according to the first target TAC, so that different target objects can use different TAs to adjust uplink transmission time, thereby ensuring accuracy and high efficiency of uplink transmission time adjustment, further ensuring that uplink transmission time corresponding to each target object meets the orthogonal relationship between users, avoiding bringing interference between users, and achieving the purpose of improving uplink transmission performance. Especially when the target object is TRP, the aim of improving throughput through multi-TRP transmission can be achieved.

When the target modes include modes 1 and 2, the terminal may adjust the uplink transmission time of the target uplink corresponding to the first target object associated with the first target TAC according to the received first target TAC, and for other target objects, such as the second target object, of the plurality of target objects, except for the first target object, the terminal may adjust the corresponding uplink transmission time according to the first target TAC and the uplink time difference, so that compared with mode 1, the implementation manner of the present invention may realize accurate and efficient adjustment of the uplink transmission time corresponding to the plurality of target objects under the condition that only one target TAC is provided.

It will be appreciated that, when the target manner includes only the manner 2, the implementation process may refer to the description related to the foregoing target manner including the manner 1 and the manner 2, and will not be repeated herein for avoiding repetition.

It should be noted that, compared to the related art, in the uplink transmission time adjustment process implemented based on the foregoing manner 1 and/or manner 2 in this embodiment, the TA associated with (or corresponding to) the target objects one by one is adopted, that is, different target objects utilize different TAs to adjust the uplink transmission time, so that accuracy and high efficiency of uplink transmission time adjustment can be ensured, and further, uplink transmission time corresponding to each target object can be ensured to meet the orthogonal relationship between users, so that uplink transmission time difference of different users for transmitting to reach an object (such as TRP) does not exceed Cyclic Prefix (CP), thereby avoiding interference between users and achieving the purpose of improving uplink transmission performance.

It can be appreciated that the aforementioned manner of acquiring the first target TAC may be various, for example, the terminal may acquire the first target TAC by receiving a medium access control unit (MAC CE), where the MAC CE includes at least the first target timing advance command (Timing Advance Command, TAC), or may acquire the first target TAC by a protocol contract, which is not limited herein.

In an implementation manner, when the terminal acquires the first target TAC through the MAC CE, the MAC CE may further carry an identifier of a first target object associated with the first target TAC. Of course, if the first target TAC includes the first TAC and the second TAC, the MAC CE may further include an identifier of the first object associated with the first TAC, an identifier of the second object associated with the second TAC, and the like, which are not limited herein.

It should be noted that, if the MAC CE includes only the first target TAC, the association relationship between the first target TAC and the first target object may be implemented by a protocol convention, a high-level configuration, or the like, which is not limited herein.

Further, the TA adjustment granularity may be understood as the minimum interval between two TA adjustments performed by the terminal, so as to avoid the problems of high power consumption and large signaling overhead of the terminal caused by frequent adjustment, and reduce the complexity of implementing the terminal.

Alternatively, in this embodiment, the TA adjustment granularity may be determined by the terminal autonomously or the terminal may be determined according to a received third radio resource control (Radio Resource Control, RRC) signaling, where the TA adjustment granularity is configured. Of course, if the TA adjustment granularity is determined by the terminal autonomously, the terminal may report the TA adjustment granularity to the network side device, so as to ensure consistency of understanding of the TA adjustment granularity by the terminal and the network side device.

In addition, the size of the TA adjustment granularity may be defined according to the communication requirement, for example, for different configurations of subcarrier spacings (Subcarrier Spacing, SCS), different lengths of adjustment granularity may be defined, for example, the TA adjustment granularity may be 0.5 slots (Slot), 1 Slot, 2 slots, 3 slots, or 4 slots, etc. Of course, the TA adjustment granularity may be, instead of using the time slot as a time unit, using a frame, a subframe, a symbol, or the like as a time unit, which is not limited herein.

In this case, for the foregoing target manner and TA adjustment granularity, the terminal may determine whether to adjust the granularity based on the target manner or the TA adjustment manner according to a protocol convention, a higher layer configuration, or a network side configuration, and the embodiment is not limited herein.

In this embodiment, the terminal adjusts the time of the target uplink transmission according to the target mode and/or the TA adjustment granularity, where the target mode includes adjusting the time of the target uplink transmission corresponding to the first target object according to the first target TAC, and/or adjusting the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC, so that on one hand, different target objects can adopt different TAs to adjust the uplink transmission time, thereby ensuring the accuracy and high efficiency of the uplink transmission time adjustment, further ensuring that the uplink transmission time corresponding to each target object meets the orthogonal relationship between users, avoiding bringing about inter-user interference, and achieving the purpose of improving the uplink transmission performance; on the other hand, the time of the target uplink transmission is adjusted based on the TA adjustment granularity, so that the problems of high terminal power consumption and high signaling overhead caused by frequent adjustment can be avoided, and meanwhile, the complexity of terminal implementation can be reduced.

As shown in fig. 3, a flowchart of a method 300 for uplink transmission according to an exemplary embodiment of the present application is provided, where the method 300 may be, but is not limited to, executed by a terminal, and in particular, may be executed by hardware and/or software installed in the terminal. In this embodiment, the method may at least include the following steps.

And S310, the terminal reports the first information.

Wherein the first information includes at least one of the following (11) - (13).

(11) The terminal capability information comprises TA adjustment modes corresponding to one TA supported by the terminal and/or TA adjustment modes corresponding to a plurality of TAs supported by the terminal. In this embodiment, the terminal supporting a TA adjustment mode corresponding to one TA may be understood as adjusting uplink transmission time by using the same TA for a plurality of target objects; the terminal supports TA adjustment modes corresponding to multiple TAs, which can be understood as: for a plurality of target objects, different target objects adopt different TAs to adjust uplink transmission time.

(12) And the number of the TA recommended by the terminal is determined by the terminal according to the downlink measurement.

(13) The downlink time difference is determined by the terminal according to downlink measurement.

The foregoing (12) and (13) are used for assisting the network side device to indicate whether to enable the TA adjustment modes of multiple TAs. For example, if the number of TAs recommended by the terminal is 2, the network side indicates to enable the TA adjustment modes of multiple TAs, and otherwise does not enable the TA adjustment modes. For another example, if the downlink time difference is greater than a predetermined value, the network side indicates to enable the TA adjustment modes of multiple TAs, and otherwise does not enable the TA adjustment modes, thereby improving the flexibility of the TA adjustment process.

Based on this, it can be understood that the subsequent implementation of S320 is implemented when the terminal supports the TA adjustment mode of multiple TAs and the network side device indicates to enable the TA adjustment mode of multiple TAs, which is not described in detail.

And S320, the terminal adjusts the time of the uplink transmission of the target based on the target mode and/or TA adjustment granularity.

Wherein the target mode includes at least one of modes 1 and 2 below.

Mode 1: and adjusting the time of the target uplink transmission corresponding to the first target object according to the first target TAC.

The first target TAC is associated with a first target object.

It can be appreciated that, in addition to the foregoing description of the method embodiment 200, the implementation procedure of S310 may be referred to as a possible implementation manner, where the terminal may adjust granularity according to TA, and periodically adjust the time of the target uplink transmission. For example, if the TA adjustment granularity is 0.5 slots, the terminal may perform time adjustment for the target uplink transmission once every 0.5 slots.

In addition, regarding the foregoing procedure of adjusting the time of the target uplink transmission in the terminal target manner, the following will further describe the implementation procedure with reference to examples 1 to 2.

Example 1

Assuming that the target manner includes the foregoing manner 1, the first target object includes a first object and a second object, and the first target TAC includes a first TAC associated with the first object and a second TAC associated with the second object, then the terminal may calculate a first TA according to the first TAC, calculate a second TA according to the second TAC, and then adjust a time of a target uplink transmission corresponding to the first object based on the first TA, and adjust a time of a target uplink transmission corresponding to the second object based on the second TA.

Optionally, the process of the terminal adjusting the time of the target uplink transmission corresponding to the first object based on the first TA and adjusting the time of the target uplink transmission corresponding to the second object based on the second TA may include any one of the following (11) - (12).

(11) And adjusting the time of the target uplink transmission corresponding to the first object based on the downlink transmission time corresponding to the reference object and the first TA, and adjusting the time of the target uplink transmission corresponding to the second object based on the downlink transmission time corresponding to the reference object and the second TA, wherein the reference object is the first object or the second object. It may be appreciated that in the implementation process of (11), the downlink transmission time corresponding to the first object is the same as the downlink transmission time corresponding to the second object, or the difference between the two is smaller than a first threshold, where the size of the first threshold may be implemented by protocol convention or high-level configuration, and the disclosure is not limited herein.

(12) And adjusting the time of the target uplink transmission corresponding to the first object based on the downlink transmission time of the first object and the first TA, and adjusting the time of the target uplink transmission corresponding to the second object based on the downlink transmission time of the second object and the second TA. It may be appreciated that in the implementation process of (12), the difference between the downlink transmission time corresponding to the first object and the downlink transmission time corresponding to the second object is greater than or equal to a second threshold, where the size of the second threshold may be implemented by protocol convention or high-level configuration, and the disclosure is not limited herein. Of course, the aforementioned first threshold value and second threshold value may be the same or different.

Of course, in this example 1, for adjustment of the time of the target uplink transmission corresponding to the multiple objects (e.g., the first object and the second object), the multiple objects may share one TA Process (Process, that is, the physical layer maintains one uplink Frame (UL Frame)), and then the MAC layer maintains multiple TACs to realize that the uplink transmission corresponding to the multiple objects adopts different TAs to adjust the time of the uplink transmission respectively; or, the target uplink transmission corresponding to the plurality of objects may also respectively adopt a plurality of independent TA processes (i.e. the physical layer maintains a plurality of independent UL frames), and then the MAC layer maintains a plurality of TACs to realize that the uplink transmission corresponding to the plurality of objects respectively adopts different TAs to adjust the uplink transmission time.

Based on this, the two cases will be described below taking the case where the first target object includes a first object and a second object, and the first target TAC includes a first TAC associated with the first object and a second TAC associated with the second object as examples.

Case 1

As shown in fig. 4a, assuming that the first object and the second object share one TA procedure, the terminal adjusts transmission times of the physical uplink shared channel (Physical uplink shared channel, PUSCH) 1 (i.e., the target uplink transmission corresponding to the first object) and the PUSCH2 (i.e., the uplink transmission corresponding to the second object) based on different slots (slot 1-slot8 as shown in fig. 4 a) of the same uplink Frame (UL Frame), respectively.

Note that, in this case, considering that the first object and the second object share one TA procedure, the process of determining, by the terminal, the TAC corresponding to the target uplink transmission may include: the terminal receives configuration authorization information of target uplink transmission corresponding to the first target object; and determining the first target TAC as the TAC corresponding to the target uplink transmission according to the configuration authorization information. For example, the terminal determines the first target object associated with the target uplink transmission according to configuration authorization information of the target uplink transmission; and determining a first target TAC associated with the first target object as the TAC of the target uplink transmission. In this embodiment, the configuration grant information may include dynamic grant (dynamic grant), configuration grant (configured grant), PUCCH, SRS configuration (configured), and the like.

Based on this, in one implementation, the association relationship between the target uplink transmission and the first target object may be configured by any one of the following (21) - (24).

(21) According to a first RRC signaling configuration; for example, coresetpoolndex may be associated with a first RRC configuration period or semi-persistent SRS, physical uplink control channel (Physical Uplink Control Channel, PUCCH).

(22) According to a corespoolindex configuration associated with a target set of control resources (Control resource set, coreset), wherein downlink control information (Downlink Control Information, DCI) scheduling the target uplink transmission is from the target Coreset.

For example, assuming that the first target object includes a first object and a second object, the target DCI scheduling the target uplink transmission is from a target Coreset associated with coresetpoolndex 0, the target uplink transmission is associated with the first object; if the target DCI for scheduling the target uplink transmission is from a target coreset associated with CorestPoolIndex of 1, the target uplink transmission is associated with a second object.

For another example, assuming that the first target object includes a first object and a second object, if the terminal detects a target DCI from a target coreset of coresetpolindex 0, all target uplink transmissions after K time units of PDCCH timing (occalasion) in which the target DCI is detected are associated with the first object; if the terminal detects a target DCI from a target coreset of CorestPoolIndex of 1, then all target uplink transmissions after K time units of PDCCH occalasion where the target DCI is detected are associated with a second object.

(23) And determining according to the channel packet of the target uplink transmission. For example, a target uplink belonging to channel packet 1 is associated with a first object, and a target uplink belonging to channel packet 2 is associated with a second object, … ….

(24) And determining according to the beam of the target uplink transmission. For example, when the beam of the target uplink transmission is the beam X, the target uplink transmission is associated with a first object, and when the beam of the target uplink transmission is the beam Y, the target uplink transmission is associated with a second object. Where the resulting beam may be referred to herein as a TCI state, where X may represent a first TCI state and Y may represent a second TCI state.

Further, after determining the TAC corresponding to the target uplink transmission (e.g., the first target TAC), the terminal may periodically adjust the time of the target uplink transmission corresponding to the first target object, and the following description will be made with reference to (31) and (32). Wherein it is assumed that the first target object includes a first object and a second object, and the first target TAC includes a first TAC associated with the first object and a second TAC associated with the second object.

(31) During the running period of a first periodic timer, adjusting the time of the uplink transmission corresponding to the first object according to the first TAC, restarting the first periodic timer when the first periodic timer is overtime, and adjusting the time of the uplink transmission corresponding to the second object according to the second TAC during the running period of the restarted first periodic timer, wherein the first starting of the first periodic timer is related to the starting of a first TAT; therefore, the first periodic timer is repeatedly started, so that the periodic adjustment of the uplink transmission time corresponding to the first object and the uplink transmission time corresponding to the second object is realized.

For example, referring to fig. 4b in combination, a first periodic timer is defined in this embodiment, based on this, the terminal starts a first periodic timer (such as TAT 1) while starting a first TAT, then during a first running period of TAT1, the terminal adjusts a time of uplink transmission of a target corresponding to the first object according to the first TAT, if TAT1 is overtime, then restarts TAT1, and during a second running period of TAT1, the terminal adjusts a time of uplink transmission of a target corresponding to the second object according to the second TAC, and so on, and repeats to implement adjustment of the time of uplink transmission of a target corresponding to the first object and the second object respectively.

(32) And during the running period of the second period timer, the terminal adjusts the time of the target uplink transmission corresponding to the first object according to the first TAC, and during the running period of the third period timer, the terminal adjusts the time of the target uplink transmission corresponding to the second object according to the second TAC, wherein the second period timer and the third period timer run alternately, and the first start of the second period timer is related to the start of the first TAT.

For example, referring to fig. 4c in combination, a second period timer and a third period timer are defined in this embodiment, based on which, the terminal starts the second period timer (such as TAT 2) while starting the first TAT, then during running of TAT2, the terminal adjusts the time of the uplink transmission corresponding to the first object according to the first TAC, if TAT2 is overtime, starts the third period timer (such as TAT 3), and during running of TAT3, the terminal adjusts the time of the uplink transmission corresponding to the second object according to the second TAC, and so on, so as to implement adjustment of the time of the uplink transmission corresponding to the first object and the second object respectively. The timing length of the second periodic timer and the timing length of the third periodic timer may be the same or different.

It should be noted that the first TAT is started when the terminal receives the MAC CE and includes the first TAC and the second TAC in the MAC CE, or the first TAT is started when the terminal receives the first TAC or the second TAC, or the first TAT is restarted, or the like. The first object and the second object correspond to the same first TAT, that is, the terminal adjusts the target uplink transmission time corresponding to the first object and the second object based on the same TA process.

Case 2

As shown in fig. 4d, assuming that the first object and the second object correspond to one independent TA process, such as TA process 1 and TA process 2, respectively, the terminal adjusts the transmission time of PUSCH1 (i.e., the target uplink transmission corresponding to the first object) and PUSCH2 (i.e., the uplink transmission corresponding to the second object) based on different UL frames, respectively.

Based on this, considering that the terminal starts a TAT (i.e., a second TAT) upon receiving a MAC CE, and the first object and the second object correspond to different TATs, respectively (i.e., the first object corresponds to the second object is different from the second TAT), the terminal may perform any one of the following (41) to (42) if the second TAT corresponding to a third target object (first object or second object) expires.

(41) Releasing (or clearing) all uplink transmissions to the third target object, wherein the all uplink transmissions may include, but are not limited to, hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) transmissions, SRS, PUCCH, configured Grant (CG), semi-persistent scheduling (Semi-Persistent Scheduling, SPS), semi-persistent channel state information (Semi-Persistent Channel State Information, SP-CSI), and the like.

(42) Releasing a first signal to the third target object, wherein the first signal comprises at least one of SRS, PUCCH, CG, SPS, SP-CSI.

Correspondingly, if the second TAT corresponding to the first object and the second TAT corresponding to the second object are both expired, the terminal may release all uplink transmissions sent to the first object and the second object.

In addition, considering that the first object and the second object respectively correspond to one independent TA process, when the terminal performs time adjustment of the target uplink transmission, a TA process ID may be introduced to distinguish the two TA processes, for example, i=coresetpoolndex or i=pci (physical layer cell identifier).

Exemplary, adjusted time Can be represented by formula (1).

wherein ,for the adjusted time of the target uplink, +.>To adjust the time of the upstream transmission of the target before T _A (i) In order to pass TA indicated by TAC, i is a tacrocess ID, based on which, if the target uplink transmission time corresponding to the first object is adjusted, i=1, if the target uplink transmission time corresponding to the second object is adjusted, i=2, μ represents a subcarrier spacing, where μ is a positive integer, such as 1, 2, and 3 … ….

Note that in one implementation, the terminal may also receive the second RRC signaling before receiving the MAC CE; wherein at least one of the following (51) - (52) may be included in the second RRC signaling.

(51) Configuration information of a target timing advance group (time advance group, TAG) including sets of TA configuration related information associated with different target objects. The target TAG may be applied to a carrier aggregation scenario, to adjust the problem of different transmission delays caused by introduction of multiple carriers, or adjust the problem of different transmission delays caused by a larger difference between the positions of a primary cell (Pcell) and a secondary cell (Scell) of different carriers. In this embodiment, each set of TA configuration related information may at least include a plurality of TATs, and information of objects (e.g., a first object and a second object) associated with each TAT, and so on.

(52) And the configuration information of the target secondary cell comprises configuration information of a plurality of target TAGs corresponding to different target TAGs.

Then, when the terminal receives the TAC, the determination of the TAC or the TA may be performed based on the configuration information of the target TAG and/or the configuration information of the target secondary cell, which is not limited herein.

Example 2

Assuming that the target manner includes the foregoing manners 1 and 2, the terminal may adjust the time of the target uplink transmission corresponding to the first target object according to the first target TAC with reference (or reference) to the downlink transmission time of the first target object, and adjust the time of the target uplink transmission corresponding to the second target object according to the difference between the first target TAC and the downlink transmission time (the difference between the downlink transmission time corresponding to the first target object and the downlink transmission time corresponding to the second target object), as shown in fig. 4 e.

Alternatively, as shown in fig. 4f, the terminal may adjust the time of the target uplink transmission corresponding to the first target object according to the first target TAC with reference to the downlink transmission time of the second target object, and adjust the time of the target uplink transmission corresponding to the second target object according to the difference between the first target TAC and the downlink time (the difference between the downlink transmission time corresponding to the first target object and the downlink transmission time corresponding to the second target object).

It can be understood that, taking fig. 4e as an example, when the terminal adjusts the time of the target uplink transmission corresponding to the first target object according to the first target TAC, the adjusted time of the target uplink transmission may be shown in formula (2).

wherein ,for the adjusted time of the target uplink transmission corresponding to the first target object, < + >>To adjust the time of the uplink transmission of the target corresponding to the first target object before T _A For TA indicated by the first target TAC, μ represents a subcarrier spacing, and in this embodiment μ is a positive integer, such as 1, 2, and 3 … ….

And when the terminal adjusts the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC, the adjusted time of the target uplink transmission may be shown in formula (3).

wherein ,for adjusting the time of the target uplink transmission corresponding to the second target object, +.>To adjust the time of the target uplink transmission corresponding to the second target object before T _A For TA indicated by the first target TAC, offset is the downlink time difference, i=2, μ represents a subcarrier spacing, and μ is a positive integer in this embodiment, such as 1, 2, and 3 … ….

Note that, the first target TAC included in the MAC CE is determined according to the downlink frame of the first target object. That is to say, the MAC CE carries the TAC as the first target TAC corresponding to the first target object.

For the foregoing example 2, if the MAC CE carries coresetpoirindex, for the same target object (e.g., the first target object), the terminal replaces the saved MAC CE with the received MAC CE, even if a different coresetpoirindex is carried.

Further, with the foregoing examples 1 and 2, it is considered that the terminal needs to make an adjustment of the target upstream transmission time within the validation time of the first target TAC, and therefore, in order to improve the communication performance, the terminal performs at least one of the following (61) - (63) within the validation time of the first target TAC.

(61) Uplink transmission scheduling information of other objects than the first target object associated with the first target TAC is not expected to be received.

(62) A second signal generated within an effective time of the first target TAC is determined as a corresponding target uplink transmission of the first target object, the second signal including at least one of SRS, PUCCH, CG. That is, SRS, PUCCH, CG generated during the TAC validation time of a first target object is all addressed to the first target object. Of course, when the terminal performs the second signal transmission, the Beam (Beam) adopts a common Beam corresponding to the first target object. The common beam here is the currently active TCI state.

(63) The interval between two PUSCHs scheduled by two target objects is ensured to be at least one slot, thereby ensuring that the latter PUSCH does not cause performance degradation due to time slot shortening.

In addition, in the case that the time interval between the validation time of the first target TAC and the validation time of the TAC that was previously validated is smaller than the TA adjustment granularity, the terminal delays the validation time of the first target TAC so that the time interval between the validation time of the first target TAC and the validation time of the TAC that was previously validated is greater than or equal to the TA adjustment granularity, and performs the step of adjusting the time of the target uplink transmission based on the target manner and/or the TA adjustment granularity based on the delayed validation time of the first target TAC. In other words, in the present application, the terminal does not expect the interval between the effective moments of two adjacent TACs to be smaller than the TA adjustment granularity.

In this embodiment, independent TA adjustment can be used for uplink transmission of two objects, so that the arrival time of uplink transmission of different users on each object is guaranteed to be the same or in one CP, thereby effectively reducing interference between users and improving performance of uplink transmission.

As shown in fig. 5, a flowchart of a method 500 for uplink transmission according to an exemplary embodiment of the present application is shown, where the method 500 may be, but is not limited to, executed by a network side device, and specifically may be executed by software or/and hardware installed in the network side device, and the method 500 includes at least the following steps.

S510, the network side device transmits the MAC CE.

Wherein, at least one of the following is included in the MAC CE: a first target timing advance command TAC, the first target TAC being associated with a first target object; and identifying the first target object.

Optionally, the method further comprises: transmitting configuration authorization information of the target uplink transmission corresponding to the first target object; the configuration authorization information is used for the terminal to determine the TAC corresponding to the target uplink transmission.

Optionally, the method further comprises: transmitting a second RRC signaling; wherein, the second RRC signaling includes at least one of the following: configuration information of a target timing advance group TAG, wherein the configuration information of the target TAG comprises a plurality of sets of TA configuration related information associated with different target objects; and the configuration information of the target secondary cell Scell comprises configuration information of a plurality of target TAGs corresponding to different target TAGs.

Optionally, the method further comprises: receiving at least one of the following reported by the terminal: terminal capability information, wherein the terminal capability information comprises a TA adjustment mode corresponding to one TA supported by the terminal and/or a TA adjustment mode corresponding to a plurality of TAs supported by the terminal; the number of the TA recommended by the terminal is determined by the terminal according to downlink measurement; the downlink time difference is determined by the terminal according to downlink measurement.

It can be appreciated that the method embodiment 500 has the same or corresponding technical features as those of the foregoing method embodiments 200-300, and therefore, the implementation process of the method embodiment 500 may refer to the related descriptions in the method embodiments 200-300 and achieve the same or corresponding technical features, which are not repeated herein.

The method for uplink transmission provided by the embodiment of the application can be used as the device for uplink transmission by the execution main body. In the embodiment of the present application, a method for executing uplink transmission by an uplink transmission device is taken as an example, and the uplink transmission device provided by the embodiment of the present application is described.

As shown in fig. 6, a schematic structural diagram of an uplink transmission apparatus 600 according to an exemplary embodiment of the present application, where the apparatus 600 includes: the adjustment module 610 is configured to adjust, by the terminal, a granularity adjustment target uplink transmission time based on the target mode and/or the timing advance TA; wherein the target means comprises at least one of: according to the first target timing advance command TAC, adjusting the time of target uplink transmission corresponding to the first target object; adjusting the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC, wherein the downlink time difference is the difference between the first downlink transmission time and the second downlink transmission time, the first downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the first target object, and the second downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the second target object; wherein the first target TAC is associated with the first target object.

Optionally, the apparatus 600 further includes a determining module configured to determine the target manner.

Optionally, the apparatus 600 further includes a second transmission module, configured to receive a medium access control unit MAC CE; the MAC CE at least comprises any one of the following: the first target TAC; and identifying the first target object.

Optionally, the step of adjusting, by the adjusting module 610, the time of the target uplink transmission corresponding to the first target object according to the first target TAC includes: in the case that the first target object includes a first object and a second object, the first target TAC includes a first TAC associated with the first object and a second TAC associated with the second object, the terminal calculates a first TA according to the first TAC and calculates a second TA according to the second TAC; and adjusting the time of the target uplink transmission corresponding to the first object based on the first TA, and adjusting the time of the target uplink transmission corresponding to the second object based on the second TA.

Optionally, the adjusting module 610 adjusts the time of the target uplink transmission corresponding to the first object based on the first TA, and adjusts the time of the target uplink transmission corresponding to the second object based on the second TA, which includes any one of the following steps: adjusting the time of the target uplink transmission corresponding to the first object based on the downlink transmission time corresponding to the reference object and the first TA, and adjusting the time of the target uplink transmission corresponding to the second object based on the downlink transmission time corresponding to the reference object and the second TA, wherein the reference object is the first object or the second object; and adjusting the time of the target uplink transmission corresponding to the first object based on the downlink transmission time of the first object and the first TA, and adjusting the time of the target uplink transmission corresponding to the second object based on the downlink transmission time of the second object and the second TA.

Optionally, the second transmission module is further configured to receive configuration authorization information of target uplink transmission corresponding to the first target object; the adjusting module 610 is further configured to determine, according to the configuration authorization information, that the first target TAC is the TAC corresponding to the target uplink transmission.

Optionally, the step of determining, by the adjustment module 610, the TAC corresponding to the target uplink transmission according to the configuration authorization information includes: determining the first target object associated with the target uplink transmission according to the configuration authorization information of the target uplink transmission; and determining a first target TAC associated with the first target object as the TAC of the target uplink transmission.

The association relationship between the target uplink transmission and the first target object by the adjustment module 610 is configured by any one of the following: controlling RRC signaling configuration according to the first radio resource; configuring according to a resource pool index CoresetPoolIndex associated with a target control resource set Coreset, wherein downlink control information DCI for scheduling the target uplink transmission comes from the target Coreset; determining according to the channel grouping of the target uplink transmission; and determining according to the beam of the target uplink transmission.

Illustratively, the RRC configures an SRS resource association target object, or an SRS resource set association target object, the RRC configures a PUCCH resource association target object, or a PUCCH resource group association target object, and so on.

Optionally, the association relationship between the target uplink transmission and the first target object is determined by the following manner:

the first target object is determined according to a third object associated with the target uplink transmission, and the third object is associated with the first target object; that is, the first target object is a first target object associated with a third object of the target uplink transmission; the association relationship between the third object and the first target object can be configured through RRC.

The first target object is determined according to a target object except a target object associated with a fourth object, wherein the fourth object is an object associated with a specific event, for example, the first target object is a target object except a target object associated with a fourth object, and the specific event is beam failure.

Wherein the third object and the fourth object may be represented as SRS resources, SRS resource sets, power control parameter sets, BFD-RS sets, reference signals (SSB, CSI-RS, TRS, BFD-RS, PL-RS, etc.), and the like.

The power control parameter set is associated with a target object, and the target object associated with uplink transmission is a target object associated with a power control parameter set associated with target uplink transmission.

For example, when the UE detects a beam failure associated with the fourth object, it is considered that the PUCCH resource corresponding to the beam failure is associated with the first target object other than the target object associated with the fourth object. The advantage of this is that when the beam of one TRP fails, then the PUCCH resource associated with the beam failure is considered to be associated with another TRP that does not fail, ensuring the performance of PUCCH transmission so that beam failure information can be reported to the network.

Optionally, the step of adjusting, by the adjusting module 610, the time of the target uplink transmission corresponding to the first target object according to the first target TAC includes: and periodically adjusting the uplink transmission time of the target corresponding to the first target object according to the first target TAC.

Optionally, the first target object includes a first object and a second object, the first target TAC includes a first TAC associated with the first object and a second TAC associated with the second object, and the step of the adjusting module 610 periodically adjusts, according to the first target TAC, a target uplink transmission time corresponding to the first target object includes any one of the following: during the running period of a first periodic timer, adjusting the time of the uplink transmission corresponding to the first object according to the first TAC, restarting the first periodic timer when the first periodic timer is overtime, and adjusting the time of the uplink transmission corresponding to the second object according to the second TAC during the running period of the restarted first periodic timer, wherein the first starting of the first periodic timer is related to the starting of a first TAT; during the running period of a second period timer, adjusting the time of the target uplink transmission corresponding to the first object according to the first TAC, and during the running period of a third period timer, adjusting the time of the target uplink transmission corresponding to the second object according to the second TAC, wherein the second period timer and the third period timer run alternately, and the first start of the second period timer is related to the start of the first TAT; the first TAT is started when the terminal receives the MAC CE and the MAC CE includes a first TAC and a second TAC, where the first object and the second object correspond to the same first TAT.

Optionally, the adjusting module 610 is further configured to perform any one of the following in a case that the second TAT corresponding to the third target object expires: releasing all uplink transmissions to the third target object; releasing a first signal sent to the third target object, wherein the first signal comprises at least one of a sounding reference signal SRS, a physical uplink control channel PUCCH, a configuration grant CG, a semi-persistent scheduling SPS and semi-persistent channel state information SP-CSI; the third target object is a first object or a second object, the second TAT is started when the terminal receives the MAC CE, and the first object and the second object correspond to different second TATs.

Optionally, the adjusting module 610 is further configured to release all uplink transmissions sent to the first object and the second object when both the second TAT corresponding to the first object and the second TAT corresponding to the second object are expired.

Optionally, the second transmission module is further configured to receive a second RRC signaling; wherein, the second RRC signaling includes at least one of the following: configuration information of a target timing advance group TAG, wherein the configuration information of the target TAG comprises a plurality of sets of TA configuration related information associated with different target objects; and the configuration information of the target secondary cell Scell comprises configuration information of a plurality of target TAGs corresponding to different target TAGs.

Optionally, the step of adjusting, by the adjusting module 610, the time of the target uplink transmission corresponding to the first target object according to the first target TAC includes: wherein ,/>For the adjusted time of the target uplink transmission corresponding to the first target object, < + >>To adjust the time of the uplink transmission of the target corresponding to the first target object before T _A And (3) the TA indicated by the first target TAC.

Optionally, the step of the adjusting module 610 adjusting the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC includes: wherein ,/>For adjusting the time of the target uplink transmission corresponding to the second target object, +.>To adjust the time of the target uplink transmission corresponding to the second target object before T _A And for the TA indicated by the first target TAC, the offset is the downlink time difference.

Optionally, the first target TAC included in the MAC CE is determined according to a downlink frame of the first target object.

Optionally, the adjustment module 610 is further configured to replace the saved MAC CE with the received MAC CE.

Optionally, the second transmission module is further configured to report at least one of the following: terminal capability information, wherein the terminal capability information comprises a TA adjustment mode corresponding to one TA supported by the terminal and/or a TA adjustment mode corresponding to a plurality of TAs supported by the terminal; the number of the TA recommended by the terminal is determined by the terminal according to downlink measurement; the downlink time difference is determined by the terminal according to downlink measurement.

Optionally, the adjusting module 610 is further configured to adjust the time of the target uplink transmission based on the TA adjustment granularity, including: and the terminal adjusts granularity based on TA and periodically adjusts the time of the target uplink transmission.

Optionally, the TA adjustment granularity is determined according to any one of the following modes: the terminal autonomously determines; and determining according to the received third RRC signaling, wherein TA adjustment granularity is configured in the third RRC signaling.

Optionally, the UE determines granularity of TA adjustment according to the measured downlink time difference associated with different target objects, and reports the granularity to the network. The UE reports TA-adjusted granularity information to assist the network in reducing invalid uplink scheduling.

Optionally, the interval between uplink transmissions associated with different target objects cannot be smaller than the granularity of the TA adjustment. The terminal does not expect the network to schedule the uplink transmission of two associated different target objects, the interval of the uplink transmission is smaller than the granularity adjusted by the TA, if the interval is smaller than the granularity adjusted by the TA, the terminal cannot adjust the TA until the terminal is out of the way, and the uplink transmission fails.

Optionally, the adjusting module 610 is further configured to adjust the time of the target uplink transmission based on the TA adjustment granularity, and further includes: when at least one condition is met, the terminal selects the uplink transmission associated with the third target for transmission, and the uplink transmission associated with other targets is discarded; the conditions include that the different uplink transmission time domain resources overlap; or alternatively

The time domain interval between the different uplink transmissions is smaller than the TA adjustment granularity.

Alternatively, the third target object may be indicated by DCI signalling, which has the advantage that it may dynamically instruct the UE which uplink transmission to select for transmission. Such as high priority may be indicated as a transmission. Specifically, the transmission priority and the like may be indicated by an indication field in the DCI.

Optionally, the adjusting module 610 is further configured to delay the validation time of the first target TAC if a time interval between the validation time of the first target TAC and the validation time of a TAC that is validated immediately before is smaller than the TA adjustment granularity, and execute the step of adjusting the time of the target uplink transmission based on the target manner and/or the TA adjustment granularity based on the delayed validation time of the first target TAC.

Optionally, the apparatus 600 further includes a processing module, during the validation time of the first target TAC, the processing module is configured to perform at least one of: uplink transmission scheduling information of other objects than the first target object associated with the first target TAC is not expected to be received; a second signal generated within an effective time of the first target TAC is determined as a corresponding target uplink transmission of the first target object, the second signal including at least one of SRS, PUCCH, CG.

The device for uplink teaching in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The uplink transmission device 600 provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 2 to 3, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

As shown in fig. 7, a schematic structural diagram of an apparatus 700 for uplink transmission according to an exemplary embodiment of the present application is provided, where the apparatus 700 includes: a first transmission module 710, configured to send a medium access control unit MAC CE; wherein, at least one of the following is included in the MAC CE: a first target timing advance command TAC, the first target TAC being associated with a first target object; and identifying the first target object.

Optionally, the first transmission module 710 is configured to send configuration authorization information of the target uplink transmission corresponding to the first target object; the configuration authorization information is used for the terminal to determine the TAC corresponding to the target uplink transmission.

Optionally, the first transmission module 710 is configured to send a second RRC signaling; wherein, the second RRC signaling includes at least one of the following: configuration information of a target timing advance group TAG, wherein the configuration information of the target TAG comprises a plurality of sets of TA configuration related information associated with different target objects; and the configuration information of the target secondary cell Scell comprises configuration information of a plurality of target TAGs corresponding to different target TAGs.

Optionally, the apparatus 700 further includes a first transmission module 710, configured to receive at least one of the following reports from the terminal: terminal capability information, wherein the terminal capability information comprises a TA adjustment mode corresponding to one TA supported by the terminal and/or a TA adjustment mode corresponding to a plurality of TAs supported by the terminal; the number of the TA recommended by the terminal is determined by the terminal according to downlink measurement; the downlink time difference is determined by the terminal according to downlink measurement.

The uplink transmission device 700 in the embodiment of the present application may be a network side device, or may be a component in a network side device, for example, an integrated circuit or a chip. By way of example, network-side devices may include, but are not limited to, the types of network-side devices 12 listed above, and embodiments of the present application are not particularly limited.

The uplink transmission device 700 provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 5, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the steps of the method as described in the method embodiments 200-300. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the terminal embodiment and can achieve the same technical effects. Specifically, fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 800 includes, but is not limited to: at least part of the components of the radio frequency unit 801, the network module 802, the audio output unit 803, the input unit 804, the sensor 805, the display unit 806, the user input unit 807, the interface unit 808, the memory 809, and the processor 810, etc.

Those skilled in the art will appreciate that the terminal 800 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 810 by a power management system for performing functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain 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 804 may include a graphics processing unit (Graphics Processing Unit, GPU) 1041 and a microphone 8042, with the graphics processor 8041 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 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. Touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two parts, a touch detection device and a touch controller. Other input devices 8072 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 the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 801 may transmit the downlink data to the processor 810 for processing; in addition, the radio frequency unit 801 may send uplink data to the network side device. In general, the radio frequency unit 801 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 809 may be used to store software programs or instructions and various data. The memory 809 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage 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. Further, the memory 809 may include volatile memory or nonvolatile memory, or the memory 809 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 809 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 810.

The processor 810 is configured to adjust, by the terminal, a granularity adjustment target uplink transmission time based on a target mode and/or a timing advance TA; wherein the target means comprises at least one of: according to the first target timing advance command TAC, adjusting the time of target uplink transmission corresponding to the first target object; adjusting the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC, wherein the downlink time difference is the difference between the first downlink transmission time and the second downlink transmission time, the first downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the first target object, and the second downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the second target object; wherein the first target TAC is associated with the first target object.

In this embodiment, the terminal adjusts the time of the target uplink transmission according to the target manner and/or the TA adjustment granularity, where the target manner includes adjusting the time of the target uplink transmission corresponding to the first target object according to the first target TAC, and/or adjusting the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC, so that on one hand, different target objects can use different TAs to adjust the uplink transmission time, thereby ensuring that the uplink transmission time adjustment is accurate and efficient, further ensuring that the uplink transmission time corresponding to each target object meets the orthogonal relationship between users, avoiding bringing about inter-user interference, and achieving the purpose of improving the uplink transmission performance. On the other hand, the time of the target uplink transmission is adjusted based on the TA adjustment granularity, so that the problems of high terminal power consumption and high signaling overhead caused by frequent adjustment can be avoided, and meanwhile, the complexity of terminal implementation can be reduced.

The embodiment of the application also provides a network side device, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running a program or instructions to implement the steps of the method in the embodiment 500. 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.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 9, the network side device 900 includes: an antenna 901, a radio frequency device 902, a baseband device 903, a processor 904, and a memory 905. The antenna 901 is connected to a radio frequency device 902. In the uplink direction, the radio frequency device 902 receives information via the antenna 901, and transmits the received information to the baseband device 903 for processing. In the downlink direction, the baseband device 903 processes information to be transmitted, and transmits the processed information to the radio frequency device 902, and the radio frequency device 902 processes the received information and transmits the processed information through the antenna 901.

The method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 903, and the baseband apparatus 903 includes a baseband processor.

The baseband apparatus 903 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 9, where one chip, for example, a baseband processor, is connected to the memory 905 through a bus interface, so as to call a program in the memory 905 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 906, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 900 of the embodiment of the present application further includes: instructions or programs stored in the memory 905 and executable on the processor 904, the processor 904 calls the instructions or programs in the memory 905 to perform the method performed by the modules shown in fig. 7, and achieve the same technical effects, so that repetition is avoided and therefore they are not described herein.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above uplink transmission method embodiment, and can achieve the same technical effects, 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 computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a network side equipment program or instruction, each process of the uplink transmission method embodiment can be realized, the same technical effect can be achieved, and the repetition is avoided, and the description is omitted 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.

The embodiment of the application also provides a computer program product, which comprises a processor, a memory and a program or an instruction stored in the memory and capable of running on the processor, wherein when the program or the instruction is executed by the processor, the various processes of the uplink transmission method embodiment are realized, the same technical effects can be achieved, and the repetition is avoided, so that the description is omitted here.

The embodiment of the application also provides a wireless communication system, which comprises: a terminal operable to perform the steps described in method embodiments 200-300 as described above, and a network side device operable to perform the steps described in method embodiment 500 as described above.

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 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 (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to 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 having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A method for uplink transmission, comprising:

the terminal adjusts granularity based on a target mode and/or timing advance TA, and adjusts the time of target uplink transmission;

wherein the target means comprises at least one of:

according to the first target timing advance command TAC, adjusting the time of target uplink transmission corresponding to the first target object;

according to the downlink time difference and the first target TAC, adjusting the time of target uplink transmission corresponding to a second target object, wherein the downlink time difference is the difference between the first downlink transmission time and the second downlink transmission time, the first downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the first target object, and the second downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the second target object;

wherein the first target TAC is associated with the first target object.

2. The method of claim 1, wherein the method further comprises:

the terminal receives a Media Access Control (MAC) CE;

the MAC CE at least comprises at least one of the following:

the first target TAC;

And identifying the first target object.

3. The method according to claim 1 or 2, wherein the step of adjusting the time of the target uplink transmission corresponding to the first target object according to the first target TAC includes:

in the case that the first target object includes a first object and a second object, the first target TAC includes a first TAC associated with the first object and a second TAC associated with the second object, the terminal calculates a first TA according to the first TAC and calculates a second TA according to the second TAC;

and adjusting the time of the target uplink transmission corresponding to the first object based on the first TA, and adjusting the time of the target uplink transmission corresponding to the second object based on the second TA.

4. The method of claim 3, wherein the steps of adjusting the time of the target uplink transmission corresponding to the first object based on the first TA, and adjusting the time of the target uplink transmission corresponding to the second object based on the second TA, comprise any one of:

adjusting the time of the target uplink transmission corresponding to the first object based on the downlink transmission time corresponding to the reference object and the first TA, and adjusting the time of the target uplink transmission corresponding to the second object based on the downlink transmission time corresponding to the reference object and the second TA, wherein the reference object is the first object or the second object;

And adjusting the time of the target uplink transmission corresponding to the first object based on the downlink transmission time of the first object and the first TA, and adjusting the time of the target uplink transmission corresponding to the second object based on the downlink transmission time of the second object and the second TA.

5. A method according to any one of claims 1-3, wherein the method further comprises:

receiving configuration authorization information of target uplink transmission corresponding to the first target object;

and determining the first target TAC as the TAC of the target uplink transmission corresponding to the first target object according to the configuration authorization information.

6. The method of claim 5, wherein the step of determining the TAC of the target uplink corresponding to the first target object according to the configuration authorization information includes:

determining the first target object associated with the target uplink transmission according to the configuration authorization information of the target uplink transmission;

and determining a first target TAC associated with the first target object as the TAC of the target uplink transmission.

7. The method of claim 6, wherein the association between the target uplink transmission and the first target object is configured by any one of:

Controlling RRC signaling configuration according to the first radio resource;

according to resource pool index configuration associated with a target control resource set Coreset, wherein downlink control information DCI for scheduling the target uplink transmission comes from the target Coreset;

determining according to the channel grouping of the target uplink transmission;

and determining according to the beam of the target uplink transmission.

8. The method of claim 6, wherein the association between the target uplink transmission and the first target object is determined by any one of:

the first target object is determined according to a third object associated with the target uplink transmission, and the third object is associated with the first target object;

the first target object is determined according to target objects except for a fourth object, wherein the fourth object is an object associated with a specific event.

9. The method according to any one of claims 1-8, wherein the step of adjusting, according to the first target TAC, a target uplink transmission time corresponding to the first target object includes:

and periodically adjusting the uplink transmission time of the target corresponding to the first target object according to the first target TAC.

10. The method of claim 9, wherein the first target object comprises a first object and a second object, the first target TAC comprises a first TAC associated with the first object and a second TAC associated with the second object, and the step of periodically adjusting a target uplink transmission time corresponding to the first target object according to the first target TAC comprises any one of the following steps;

during the running period of a first periodic timer, adjusting the time of the uplink transmission corresponding to the first object according to the first TAC, restarting the first periodic timer when the first periodic timer is overtime, and adjusting the time of the uplink transmission corresponding to the second object according to the second TAC during the running period of the restarted first periodic timer, wherein the first starting of the first periodic timer is related to the starting of a first TAT;

during the running period of a second period timer, adjusting the time of the target uplink transmission corresponding to the first object according to the first TAC, and during the running period of a third period timer, adjusting the time of the target uplink transmission corresponding to the second object according to the second TAC, wherein the second period timer and the third period timer run alternately, and the first start of the second period timer is related to the start of the first TAT;

Wherein the first object and the second object correspond to the same first TAT.

11. The method of claim 10, wherein the first TAT is started by the terminal when the MAC CE is received and the first TAC and the second TAC are included in the MAC CE.

12. The method of any one of claims 1-4, wherein the method further comprises:

and under the condition that a second TAT corresponding to the third target object is out of date, the terminal executes any one of the following steps:

releasing all uplink transmissions to the third target object;

releasing a first signal sent to the third target object, wherein the first signal comprises at least one of a sounding reference signal SRS, a physical uplink control channel PUCCH, a configuration grant CG, a semi-persistent scheduling SPS and semi-persistent channel state information SP-CSI;

the third target object is a first object or a second object, the second TAT is started when the terminal receives the MAC CE, and the first object and the second object correspond to different second TATs.

13. The method of claim 12, wherein the method further comprises:

and under the condition that the second TAT corresponding to the first object and the second TAT corresponding to the second object are out of date, the terminal releases all uplink transmissions sent to the first object and the second object.

14. The method according to any of claims 2-4, wherein prior to the step of the terminal receiving the MAC CE, the method further comprises:

receiving a second RRC signaling;

wherein, the second RRC signaling includes at least one of the following:

configuration information of a target timing advance group TAG, wherein the configuration information of the target TAG comprises a plurality of sets of TA configuration related information associated with different target objects;

and the configuration information of the target secondary cell Scell comprises configuration information of a plurality of target TAGs corresponding to different target TAGs.

15. The method according to any one of claims 1-14, wherein the step of adjusting, according to the first target TAC, a target uplink transmission time corresponding to the first target object includes:

wherein ,for the adjusted time of the target uplink transmission corresponding to the first target object, < + >>To adjust the time of the uplink transmission of the target corresponding to the first target object before T _A And (3) the TA indicated by the first target TAC.

16. The method of claim 1 wherein the step of adjusting the time of the target uplink transmission corresponding to the second target object according to the downstream time difference and the first target TAC comprises:

wherein ,for adjusting the time of the target uplink transmission corresponding to the second target object, +.>To adjust the time of the target uplink transmission corresponding to the second target object before T _A And for the TA indicated by the first target TAC, the offset is the downlink time difference.

17. The method of claim 15 or 16, wherein the first target TAC included in the MAC CE is determined according to a downlink frame of the first target object.

18. The method of any one of claims 1-17, wherein the method further comprises:

the terminal replaces the saved MAC CE with the received MAC CE.

19. The method of any one of claims 2-18, wherein the method further comprises:

the terminal reports at least one of the following:

terminal capability information, wherein the terminal capability information comprises a TA adjustment mode corresponding to one TA supported by the terminal and/or a TA adjustment mode corresponding to a plurality of TAs supported by the terminal;

the number of the TA recommended by the terminal is determined by the terminal according to downlink measurement;

the downlink time difference is determined by the terminal according to downlink measurement.

20. The method according to any one of claims 1-19, wherein the step of the terminal adjusting the time of the target uplink transmission based on TA adjustment granularity comprises:

and the terminal adjusts granularity based on TA and periodically adjusts the time of the target uplink transmission.

21. The method of claim 1 or 20, wherein the TA adjustment granularity is determined according to any one of the following:

the terminal autonomously determines;

and determining according to the received third RRC signaling, wherein TA adjustment granularity is configured in the third RRC signaling.

22. The method of claim 1 or 20, further comprising:

and the UE reports the TA adjustment granularity.

23. The method according to any of claims 1-22, wherein the interval of the target uplink transmissions associated with different target objects is not smaller than the TA adjustment granularity.

24. The method of any one of claims 1-22, further comprising:

when the target uplink transmission associated with different target objects meets at least one of the following conditions, uplink transmission associated with a fourth target object is selected for transmission, and target uplink transmissions associated with other target objects are discarded:

The different uplink transmission time domain resources overlap;

25. The method of claim 24, the third target object is indicated by DCI signaling.

26. The method of claim 20 or 21, wherein the method further comprises:

and the terminal delays the effective time of the first target TAC under the condition that the time interval between the effective time of the first target TAC and the effective time of the TAC which is effective before is smaller than the TA adjustment granularity, and the step of adjusting the time of the target uplink transmission based on the target mode and/or the TA adjustment granularity is performed based on the delayed effective time of the first target TAC.

27. The method of any one of claims 1-26, wherein the method further comprises:

and in the effective time of the first target TAC, the terminal executes at least one of the following steps:

uplink transmission scheduling information of other objects than the first target object associated with the first target TAC is not expected to be received;

a second signal generated within an effective time of the first target TAC is determined as a corresponding target uplink transmission of the first target object, the second signal including at least one of SRS, PUCCH, CG.

28. A method for uplink transmission, comprising:

the network equipment sends a Media Access Control (MAC) CE;

wherein, at least one of the following is included in the MAC CE:

a first target timing advance command TAC, the first target TAC being associated with a first target object;

and identifying the first target object.

29. The method of claim 28, wherein the method further comprises:

transmitting configuration authorization information of the target uplink transmission corresponding to the first target object;

the configuration authorization information is used for determining the TAC corresponding to the target uplink transmission by the terminal.

30. The method of any one of claims 28-29, wherein the method further comprises:

transmitting a second RRC signaling;

wherein, the second RRC signaling includes at least one of the following:

31. The method of any one of claims 28-30, wherein the method further comprises:

Receiving at least one of the following reported by the terminal:

32. An apparatus for uplink transmission, comprising:

the adjusting module is used for adjusting granularity to adjust the time of uplink transmission of the target based on the target mode and/or the timing advance TA;

wherein the target means comprises at least one of:

adjusting the time of the target uplink transmission corresponding to the second target object according to the downlink time difference and the first target TAC, wherein the downlink time difference is the difference between the first downlink transmission time and the second downlink transmission time, the first downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the first target object, and the second downlink transmission time is the time when the terminal receives the downlink transmission corresponding to the second target object;

Wherein the first target TAC is associated with the first target object.

33. An apparatus for uplink transmission, comprising:

the first transmission module is used for sending a media access control unit (MAC CE);

wherein, at least one of the following is included in the MAC CE:

and identifying the first target object.

34. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method of uplink transmission according to any one of claims 1 to 27.

35. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method of uplink transmission according to any of claims 28 to 31.

36. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the method of uplink transmission according to any one of claims 1-27, or the steps of the method of uplink transmission according to any one of claims 28 to 31.