An information transmission method, apparatus, terminal and network device

Abstract

The present application provides an information transmission method, apparatus, terminal and network device. Among them, the information transmission method includes: sending uplink control information UCI carrying timing advance TA information to the network device. This solution can achieve that when transmitting TA, there is no need to frequently trigger RA access or perform operations such as sending SR first, but directly transmit the TA information, thereby simplifying the transmission operation and saving power consumption; it well solves the problem of large power consumption of the existing information transmission scheme for TA in the prior art.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to an information transmission method, apparatus, terminal, and network device. Background Art

[0002] In the 5G Release 17 non-terrestrial networks (NTN) system, the UE calculates the UE-specific uplink timing advance (i.e., TA) based on GNSS (Global Navigation Satellite System) and ephemeris. In order for the base station to better control the UE uplink transmission and resource scheduling (including calculating the scheduling time slot offset K_offset), the UE needs to report the TA to the base station.

[0003] Currently, there are several optional ways for the UE to update the uplink TA to the base station:

[0004] Method 1. Map the TA or TA range to the RO (preamble transmission occasion): The UE sends a Preamble on the selected RO, and the base station can obtain the TA at the MAC (Media Access Control) layer.

[0005] Method 2. Through the RRC (Radio Resource Control) message: The UE fills the uplink TA into the defined high-layer RRC message and transmits it to the base station through the PUSCH (Physical Uplink Shared Channel). After the base station's high layer parses it, it notifies the base station's MAC layer to further calculate the K_offset or TA command.

[0006] Method 3. Through the MAC CE (Control Element): Define a new MAC CE for the UE to report the TA, and carry it through the PUSCH to the base station. The base station can obtain the TA at the MAC layer.

[0007] However, the above several ways for the UE to report the TA have the following defects:

[0008] For Method 1, it needs to be implemented through RA access (random access), which requires occupying RA access resources. Moreover, due to the relatively frequent update of the UE-specific TA, frequent triggering of RA access will consume the UE's power.

[0009] For Method 2, it needs to be transmitted to the base station through the PUSCH at the high-layer RRC layer. After the base station's high layer parses it, it is then passed to the base station's MAC layer. The efficiency is not as good as directly parsing at the MAC layer. In addition, due to the need to transmit through the PUSCH, if there is no current uplink buffer, a scheduling request SR needs to be sent to the base station first, which will occupy additional uplink resources, and the additional steps will consume the UE's power.

[0010] In Method 3, since the newly defined MAC CE is used, the base station can obtain the TA through the MAC CE and perform further processing at the MAC layer. However, since it needs to be carried by the PUSCH for transmission to the base station, similar to Method 2, an uplink buffer is also required for transmission. If there is no buffer, an SR needs to be sent to the base station first, and then it is transmitted to the base station through the PUSCH, which will occupy additional uplink resources and the additional steps will consume the power of the UE.

[0011] As can be seen from the above, in the prior art, there are problems such as high power consumption in the TA information transmission scheme. Summary of the Invention

[0012] The purpose of this application is to provide an information transmission method, device, terminal and network device to solve the problem of high power consumption in the TA information transmission scheme in the prior art.

[0013] To solve the above technical problems, an embodiment of this application provides an information transmission method applied to a terminal, including:

[0014] Sending uplink control information UCI carrying timing advance TA information to a network device.

[0015] Optionally, the TA information is included in the channel state information CSI of the UCI.

[0016] Optionally, the sending uplink control information UCI carrying timing advance TA information to a network device includes:

[0017] Using the uplink control channel PUCCH to carry the TA information in the periodic CSI or semi-persistent CSI and send it to the network device; or,

[0018] Using the uplink shared channel PUSCH to carry the TA information in the aperiodic CSI and send it to the network device.

[0019] Optionally, the TA information includes: TA type information, TA group identifier, and TA index value;

[0020] Wherein, the TA type information indicates that the TA is a relative TA or an absolute TA.

[0021] Optionally, the transmission priority of the TA information is lower than that of the beam management information and the rank indication RI, and higher than that of other CSI information except the beam management information and RI.

[0022] Optionally, the sending uplink control information UCI carrying timing advance TA information to a network device includes:

[0023] When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information, send a UCI carrying the first TA information to the network device; or,

[0024] When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value, send a UCI carrying the first TA information to the network device.

[0025] Optionally, it further includes:

[0026] When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is less than the threshold value, do not perform the operation of sending a UCI carrying the first TA information to the network device.

[0027] Optionally, the sending of the uplink control information UCI carrying the timing advance TA information to the network device includes:

[0028] Send the TA information to the network device using the first PUCCH format;

[0029] Among them, the first PUCCH format includes: PUCCH format 2, PUCCH format 3 or PUCCH format 4;

[0030] The TA information is modulated by quadrature phase shift keying QPSK or π / 2-binary phase shift keying BPSK; and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0031] The embodiment of the present application also provides an information transmission method, which is applied to a network device and includes:

[0032] Receive the uplink control information UCI carrying the timing advance TA information sent by the terminal.

[0033] Optionally, the TA information is included in the channel state information CSI of the UCI.

[0034] Optionally, the uplink control information UCI carrying the timing advance TA information sent by the receiving terminal includes:

[0035] Receive the periodic CSI or semi-persistent CSI carrying TA information sent by the terminal using the physical uplink control channel (PUCCH); or,

[0036] Receive the aperiodic CSI carrying TA information sent by the terminal using the physical uplink shared channel (PUSCH).

[0037] Optionally, the TA information includes: TA type information, TA group identifier, and TA index value;

[0038] Among them, the TA type information indicates that the TA is a relative TA or an absolute TA.

[0039] Optionally, the transmission priority of the TA information is lower than that of the beam management information and the rank indication (RI), and higher than that of other CSI information except the beam management information and the RI.

[0040] Optionally, the uplink control information (UCI) carrying the timing advance (TA) information sent by the receiving terminal includes:

[0041] The UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information; or,

[0042] The UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold.

[0043] Optionally, it further includes:

[0044] When the TA information belonging to periodic transmission information is not received at the current transmission moment, determine that the TA information at the current transmission moment is the same as the TA information at the previous transmission moment.

[0045] Optionally, the uplink control information (UCI) carrying the timing advance (TA) information sent by the receiving terminal includes:

[0046] The TA information sent by the receiving terminal using the first PUCCH format; where the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4;

[0047] The TA information is modulated by Quadrature Phase Shift Keying (QPSK) or π / 2-Binary Phase Shift Keying (BPSK); and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0048] An embodiment of this application further provides a terminal, including a memory, a transceiver, and a processor:

[0049] The memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

[0050] Through the transceiver, send uplink control information (UCI) carrying timing advance (TA) information to a network device.

[0051] Optionally, the TA information is included in the channel state information (CSI) of the UCI.

[0052] Optionally, sending the uplink control information (UCI) carrying timing advance (TA) information to the network device includes:

[0053] Using the physical uplink control channel (PUCCH), carry the TA information in periodic CSI or semi-persistent CSI and send it to the network device; or,

[0054] Using the physical uplink shared channel (PUSCH), carry the TA information in aperiodic CSI and send it to the network device.

[0055] Optionally, the TA information includes: TA type information, TA group identifier, and TA index value;

[0056] Among them, the TA type information indicates whether the TA is a relative TA or an absolute TA.

[0057] Optionally, the transmission priority of the TA information is lower than that of beam management information and rank indicator (RI), and higher than that of other CSI information except the beam management information and RI.

[0058] Optionally, sending the uplink control information (UCI) carrying timing advance (TA) information to the network device includes:

[0059] When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information, send the UCI carrying the first TA information to the network device; or,

[0060] When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value, send a UCI carrying the first TA information to the network device.

[0061] Optionally, the operation further includes:

[0062] When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is less than the threshold value, do not perform the operation of sending a UCI carrying the first TA information to the network device.

[0063] Optionally, the sending of the uplink control information UCI carrying the timing advance TA information to the network device includes:

[0064] Send the TA information to the network device using the first PUCCH format;

[0065] Wherein, the first PUCCH format includes: PUCCH format 2, PUCCH format 3 or PUCCH format 4;

[0066] The TA information is modulated by quadrature phase shift keying QPSK or π / 2-binary phase shift keying BPSK; and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0067] An embodiment of the present application further provides a network device, including a memory, a transceiver, and a processor:

[0068] The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

[0069] Receive, through the transceiver, the uplink control information UCI carrying the timing advance TA information sent by the terminal.

[0070] Optionally, the TA information is included in the channel state information CSI of the UCI.

[0071] Optionally, the uplink control information UCI carrying the timing advance TA information sent by the receiving terminal includes:

[0072] Receiving periodic CSI or semi-persistent CSI carrying TA information sent by the terminal using the physical uplink control channel (PUCCH); or,

[0073] Receiving aperiodic CSI carrying TA information sent by the terminal using the physical uplink shared channel (PUSCH).

[0074] Optionally, the TA information includes: TA type information, TA group identifier, and TA index value;

[0075] wherein the TA type information indicates that the TA is a relative TA or an absolute TA.

[0076] Optionally, the transmission priority of the TA information is lower than that of beam management information and rank indication (RI), and higher than that of other CSI information except the beam management information and RI.

[0077] Optionally, the uplink control information (UCI) carrying timing advance (TA) information sent by the receiving terminal includes:

[0078] UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information; or,

[0079] UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value.

[0080] Optionally, the operation further includes:

[0081] When the TA information belonging to periodic transmission information is not received at the current transmission moment, determining that the TA information at the current transmission moment is the same as the TA information at the previous transmission moment.

[0082] Optionally, the uplink control information (UCI) carrying timing advance (TA) information sent by the receiving terminal includes:

[0083] TA information sent by the receiving terminal using the first PUCCH format; wherein the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4;

[0084] The TA information is modulated by Quadrature Phase Shift Keying (QPSK) or π / 2-Binary Phase Shift Keying (BPSK); and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0085] An embodiment of this application also provides an information transmission device, which is applied to a terminal and includes:

[0086] A first sending unit, configured to send uplink control information (UCI) carrying timing advance (TA) information to a network device.

[0087] Optionally, the TA information is included in the channel state information (CSI) of the UCI.

[0088] Optionally, the sending of the uplink control information (UCI) carrying timing advance (TA) information to the network device includes:

[0089] Using the physical uplink control channel (PUCCH), carrying the TA information in periodic CSI or semi-persistent CSI and sending it to the network device; or,

[0090] Using the physical uplink shared channel (PUSCH), carrying the TA information in aperiodic CSI and sending it to the network device.

[0091] Optionally, the TA information includes: TA type information, TA group identifier, and TA index value;

[0092] Wherein, the TA type information indicates that the TA is a relative TA or an absolute TA.

[0093] Optionally, the transmission priority of the TA information is lower than that of beam management information and rank indicator (RI), and higher than that of other CSI information except the beam management information and RI.

[0094] Optionally, the sending of the uplink control information (UCI) carrying timing advance (TA) information to the network device includes:

[0095] When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information, sending the UCI carrying the first TA information to the network device; or,

[0096] When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value, a UCI carrying the first TA information is sent to the network device.

[0097] Optionally, it further includes:

[0098] A first processing unit, configured to, when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is less than the threshold value, not perform the operation of sending a UCI carrying the first TA information to the network device.

[0099] Optionally, sending the uplink control information UCI carrying the timing advance TA information to the network device includes:

[0100] Sending the TA information to the network device by using a first PUCCH format;

[0101] Wherein, the first PUCCH format includes: PUCCH format 2, PUCCH format 3 or PUCCH format 4;

[0102] The TA information is modulated by quadrature phase shift keying QPSK or π / 2-binary phase shift keying BPSK; and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded by using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded by using Polar code.

[0103] An embodiment of the present application further provides an information transmission device, which is applied to a network device and includes:

[0104] A first receiving unit, configured to receive the uplink control information UCI carrying the timing advance TA information sent by the terminal.

[0105] Optionally, the TA information is included in the channel state information CSI of the UCI.

[0106] Optionally, receiving the uplink control information UCI carrying the timing advance TA information sent by the receiving terminal includes:

[0107] Receiving the periodic CSI or semi-persistent CSI carrying the TA information sent by the terminal by using the uplink control channel PUCCH; or,

[0108] Receive the aperiodic CSI carrying TA information sent by the terminal using the Physical Uplink Shared Channel (PUSCH).

[0109] Optionally, the TA information includes: TA type information, TA group identifier, and TA index value;

[0110] Among them, the TA type information indicates that the TA is a relative TA or an absolute TA.

[0111] Optionally, the transmission priority of the TA information is lower than that of beam management information and rank indication (RI), and higher than that of other CSI information except the beam management information and RI.

[0112] Optionally, the uplink control information (UCI) carrying timing advance (TA) information sent by the receiving terminal includes:

[0113] The UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information; or,

[0114] The UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value.

[0115] Optionally, it further includes:

[0116] A first determination unit, configured to determine that the TA information at the current transmission moment is the same as the TA information at the previous transmission moment when the TA information belonging to periodic transmission information is not received at the current transmission moment.

[0117] Optionally, the uplink control information (UCI) carrying timing advance (TA) information sent by the receiving terminal includes:

[0118] The TA information sent by the receiving terminal using the first Physical Uplink Control Channel (PUCCH) format; among them, the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4;

[0119] The TA information is modulated by Quadrature Phase Shift Keying (QPSK) or π / 2-Binary Phase Shift Keying (BPSK); and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0120] An embodiment of this application also provides a processor-readable storage medium storing a computer program for causing the processor to execute the above-mentioned information transmission method on the terminal side; or,

[0121] The computer program is for causing the processor to execute the above-mentioned information transmission method on the network device side.

[0122] The beneficial effects of the above technical solutions of this application are as follows:

[0123] In the above solution, the information transmission method sends uplink control information (UCI) carrying timing advance (TA) information to the network device; it can achieve that when transmitting TA, there is no need to frequently trigger RA access or perform operations such as sending SR first, but directly transmit the TA information, thereby simplifying the transmission operation and saving power consumption; it well solves the problem of high power consumption in the existing TA information transmission scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0124] Figure 1 It is a schematic diagram of the wireless communication system architecture according to an embodiment of this application;

[0125] Figure 2 It is a schematic diagram of the terminal uplink alignment process according to an embodiment of this application;

[0126] Figure 3 It is a schematic diagram of the uplink time alignment of the time reference point at the gNB according to an embodiment of this application;

[0127] Figure 4 It is a schematic diagram of the initial TA non-connected state according to an embodiment of this application;

[0128] Figure 5 It is a schematic diagram of the maintenance connected state of TA according to an embodiment of this application;

[0129] Figure 6 It is a schematic diagram of the K_offset concept according to an embodiment of this application;

[0130] Figure 7 It is a schematic diagram of the information transmission method process according to an embodiment of this application Figure 1 ;

[0131] Figure 8Schematic flow of the information transmission method according to the embodiments of the present application Figure 2 ;

[0132] Figure 9 Schematic of the multiplexing of the long format + short format in the TA format according to the embodiments of the present application Figure 1 ;

[0133] Figure 10 Schematic of the multiplexing of the long format + short format in the TA format according to the embodiments of the present application Figure 2 ;

[0134] Figure 11 Schematic of the short format according to the embodiments of the present application;

[0135] Figure 12 Schematic of the specific implementation process of the information transmission method according to the embodiments of the present application;

[0136] Figure 13 Schematic of the terminal structure according to the embodiments of the present application;

[0137] Figure 14 Schematic of the network device structure according to the embodiments of the present application;

[0138] Figure 15 Schematic of the structure of the information transmission device according to the embodiments of the present application Figure 1 ;

[0139] Figure 16 Schematic of the structure of the information transmission device according to the embodiments of the present application Figure 2 . Detailed implementation manners

[0140] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0141] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0142] In the embodiments of the present application, the term "plurality" refers to two or more, and other quantifiers are similar.

[0143] It should be noted that the technical solutions provided in the embodiments of the present application can be applied to a variety of systems, especially 5G systems. For example, the applicable systems can be the global system of mobile communication (GSM) system, the code division multiple access (CDMA) system, the Wideband Code Division Multiple Access (WCDMA) general packet radio service (GPRS) system, the long term evolution (LTE) system, the LTE frequency division duplex (FDD) system, the LTE time division duplex (TDD) system, the long term evolution advanced (LTE-A) system, the universal mobile telecommunication system (UMTS), the worldwide interoperability for microwave access (WiMAX) system, the 5G New Radio (NR) system, etc. Both terminals and network devices are included in these various systems. The system may also include a core network part, such as the Evolved Packet System (EPS), the 5G System (5GS), etc.

[0144] Figure 1 The block diagram of a wireless communication system to which the embodiments of the present application can be applied is shown. The wireless communication system includes a terminal and a network device.

[0145] The terminal involved in the embodiments of the present application may be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal may also be different. For example, in a 5G system, the terminal may be referred to as a user equipment (UE). The wireless terminal can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges voice and / or data with the radio access network. For example, devices such as personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal device, access terminal device, user terminal device, user agent, user device, which is not limited in the embodiments of the present application.

[0146] The network device involved in the embodiments of this application can be a base station, which may include multiple cells that provide services to terminals. Depending on the specific application scenarios, the base station can also be referred to as an access point, or it can be a device in the access network that communicates with wireless terminals through one or more sectors over the air interface, or other names. The network device can be used to mutually replace the received air frames and Internet Protocol (IP) packets, and act as a router between the wireless terminal and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the management of the attributes of the air interface. For example, the network device involved in the embodiments of this application can be a network device (Base Transceiver Station, BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), or a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of this application do not limit it. In some network architectures, the network device can include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit can also be geographically separated.

[0147] The network device and the terminal can each use one or more antennas for Multi-Input Multi-Output (MIMO) transmission. The MIMO transmission can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). According to the form and quantity of the combined antennas, the MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can also be diversity transmission, precoding transmission, beamforming transmission, etc.

[0148] First, the content involved in the solution provided in the embodiments of the present application will be introduced below.

[0149] In a terrestrial network system, uplink synchronization is achieved through Timing advance. The base station sends a TA command MAC (Media Access Control) CE (Control Element) to the UE to ensure that the uplink transmissions of different UEs can reach the base station simultaneously. The base station calculates the TA command by measuring the uplink PUSCH (Uplink Shared Channel) or SRS (Channel Sounding Reference Signal, i.e., uplink sounding reference signal) sent by the UE, and then sends it to the UE through the TA command MAC CE. The UE adjusts its uplink transmission time according to the received TA. For specific details, please refer to Figure 2 the process of uplink alignment or uplink time synchronization of the UE shown (uplink alignment or uplink time synchronization is achieved through timing advance). Among them, if multiple UEs transmit to the gNB simultaneously, the gNB may not receive their signals simultaneously due to the different distances between the UEs and the gNB and thus different propagation delays. To maintain time alignment at the gNB, the UE applies a time advance to the uplink transmission relative to the downlink received signal. When the terminal does not apply time advance, terminal 1 and terminal 2 transmit to the base station simultaneously, but terminal 2 is closer to the base station, so the base station detects the signal of terminal 2 first; when the terminal applies time advance, terminal 1 applies time advance and transmits to the base station earlier than terminal 2, so that the base station can detect the signals of terminal 1 and terminal 2 simultaneously.

[0150] In addition, in the 5G Release 17 non-terrestrial network system, since the position of the satellite relative to the UE is changing, that is, the UE position and satellite ephemeris will change. If only relying on the base station to measure the uplink signal and send TA Command MAC CE for uplink alignment or uplink time synchronization, frequent sending of MAC CE will increase the downlink load. Therefore, the UE will calculate the UE-specific uplink timing advance (TA) according to GNSS and ephemeris and automatically update the uplink transmission time. In the NTN (non-terrestrial network system), the propagation delay from the network to the UE position changes very fast. For a low-earth orbit (LEO) satellite of 600 km, the maximum delay change is + / -40 μs / sec. Specifically, it is the change in the position of the UE relative to the base station, expressed in time. Since the radio propagation speed is constant, the change in the relative position of the UE can be expressed in time. Here, the change is mainly caused by the movement of the satellite. μs / sec represents how many microseconds change per second. Multiplying 40 microseconds by the radio propagation rate can obtain the magnitude of the change in the relative position of the UE.

[0151] Since the UE calculates its own dedicated uplink timing advance (TA), the gNB must obtain the UE uplink timing advance update, that is, when and by how much the UE has automatically adjusted its uplink transmission time (i.e., the time of the self-calibrated uplink timing advance by the UE, for example, sending uplink data 10 microseconds earlier, and by how much refers to these 10 microseconds). Otherwise, the TA command based on the uplink signal measurement by the gNB may no longer be appropriate. In this case, the UE needs to update the TA to the base station side according to the set threshold or periodically.

[0152] In addition, due to the long transmission delay of the non-terrestrial network system, Release 17 introduces K_offset on the basis of K1 and K2, further expanding the scheduling delay. Considering the different transmission delays in the cell center and cell edge, the K_offset after initial access can be updated according to the UE, which is called UE specific K_offset (UE-dedicated K_offset). The base station can derive K_offset through TA, which requires the UE to report its own dedicated uplink timing advance so that the base station can derive a reasonable UE specific K_offset. Among them, K1 and K2 are the slot offset parameters introduced in 5G. K1 is the offset time from when the UE receives the PDCCH (downlink control channel) to when the UE sends ACK (acknowledgment), and K2 is the offset time from when the UE receives the PDCCH to when the UE sends uplink data. It is mainly used for more flexible scheduling of uplink and downlink data.

[0153] Based on the above, (in the NTN (non-terrestrial network system), the propagation delay from the network to the UE location changes very fast. For a 600 km LEO, the maximum delay change is + / -40 μs / sec), the TA reporting period can be calculated as follows:

[0154] 1. For SCS of 30 kHz;

[0155] 2. The relative maximum TA update time is 32×16×64×T c / 2 u , where u represents the subcarrier spacing, u = 0 represents a subcarrier spacing of 15 kHz, u = 1 represents a subcarrier spacing of 30 kHz, and so on;

[0156] 3. T c is 0.2543 nanoseconds;

[0157] 4. The maximum TA correction time is 32×16×64×0.2543 / 2 = 4 microseconds;

[0158] 5. To meet the delay change of + / -40 μs / sec, the UE performs 80 / 4 = 20 TA updates within one second;

[0159] 6. The TA update period is 50 ms.

[0160] From the above calculations, it can be known that the TA update period is already close to the CQI (Channel Quality Indicator) 40 ms update period or less than the CQI 80 ms update period. Thus, simply relying on the PUSCH to perform TA reporting according to Method 2 or 3 is no longer the optimal solution.

[0161] Regarding the uplink alignment or uplink time synchronization of the time reference point at the gNB (base station), reference can be made to Figure 3 ; where, as shown in the figure, t FL1 is the time delay between the base station and the satellite, and t SL1 is the time delay between the terminal and the satellite. Subframe 0 is the starting subframe of the system time. It can be seen from the figure that the base station sends downlink data in subframe 0, which reaches the satellite after t FL1 and then reaches the terminal after t SL1 . The terminal detects and analyzes the downlink data based on the downlink synchronization signal. In the uplink direction, the UE needs to send uplink data in advance by t FL1 +t SL1 so as to ensure that the base station receives the uplink data in subframe 0. The uplink time alignment mechanism of the time reference point at the base station is the same as that of the terrestrial network uplink time alignment.

[0162] Regarding the initial TA and TA maintenance diagrams of the non-terrestrial network (NTN) with the reference point at the base station in the non-connected state and the connected state, reference can be made to Figure 4 and Figure 5 (Initial TA non-connected state and TA maintenance connected state schematic diagrams), specifically:

[0163] (1) For the initial TA in RRC_IDLE (RRC idle state) and / or RRC_INACTIE (RRC inactive state), as Figure 4 shown:

[0164] Step 0: The UE ensures that GNSS is ready.

[0165] Step 1: The base station broadcasts the ephemeris and Common TA through a broadcast message. Specifically, it can be broadcast through the system information block SIB.

[0166] Step 2: The UE calculates the UE-satellite RTT (round-trip time delay) as the UE-specific TA according to the ephemeris and GNSS.

[0167] Specifically, the UE calculates the UE-satellite RTT as the UE-specific TA by obtaining the UE position through the ephemeris and GNSS.

[0168] Step 3: The UE applies time advance (corresponding to the above-mentioned timing advance) for Message 1 transmission. Specifically, the UE pre-compensates the UE-gNB RTT.

[0169] Step 4: The base station measures the received time difference.

[0170] Specifically, the base station measures the time difference between the message reception and the configured random access occasion.

[0171] Step 5: The base station sends Message 2 carrying a 12-bit TAC (Time advance Command) based on the measurement of Message 1 reception.

[0172] Specifically, it sends a 12-bit TAC RAR (Timing Advance Command in the Random Access Response) to the terminal. RAR stands for Randome Access Response.

[0173] Step 6: The UE adjusts the timing advance based on the received 12-bit TAC. That is, TA adjustment.

[0174] Step 7: The UE applies the adjusted timing advance to send Message 3. Meanwhile, if Message 3 has sufficient payload space, the UE reports the calculated UE-calculated TA (UE-calculated Timing Advance), and if not, the UE reports the UE-calculated TA through Message 5 or other UL Grants (Uplink Scheduling Grants) after Message 3.

[0175] Specifically, the UE sends a UE-calculated TA report through Message 3.

[0176] Step 8: After receiving the TA report, the base station obtains the absolute TA and returns Message 4 to the UE.

[0177] Specifically, the base station calculates K_offset based on the absolute TA to schedule the transmission of Message 4.

[0178] (2) For the maintenance of TA in RRC_Connected (RRC connected state), as Figure 5 shown:

[0179] Step 9. The UE maintains GNSS or locks GNSS.

[0180] Specifically, the UE maintains GNSS by tracking or locking GNSS.

[0181] Step 10. The base station broadcasts the ephemeris and Common TA through a broadcast message. Specifically, it can be broadcast through the system information block SIB.

[0182] Step 11. The UE calculates the UE-satellite RTT (Round-Trip Time) based on the ephemeris and GNSS as the UE-specific TA.

[0183] Specifically, the UE updates the TA based on the UE position obtained from the received GNSS, the ephemeris, and the Common TA.

[0184] Step 12. The UE updates the UE-gNB RTT via PUSCH and / or PUCCH.

[0185] Specifically, the UE applies the updated TA for uplink transmission.

[0186] Step 13. The base station measures the time difference of the uplink transmission.

[0187] That is, the base station measures the received time difference.

[0188] Step 14. The base station sends a PDSCH carrying a MAC-CE with a 6-bit TAC based on the measurement.

[0189] Step 15. The UE adjusts the TA according to the received 6-bit TAC. That is, TA adjustment.

[0190] Step 16. The UE updates the timing advance.

[0191] Specifically, the UE updates the UE-specific TA according to the ephemeris and GNSS.

[0192] Step 17. The UE reports the UE-calculated TA.

[0193] Specifically, the UE applies the updated TA and reports the UE-calculated TA via PUSCH.

[0194] Step 18. After receiving the TA report, the base station obtains the absolute TA.

[0195] From Figure 4 and Figure 5 it can be seen that here the UE reports or updates the TA to the base station via PUSCH.

[0196] Regarding the non-terrestrial network (NTN) K_offset concept, refer to Figure 6;As can be seen from the figure, compared with the terrestrial system, the non-terrestrial system has a longer propagation delay. By introducing K_offset on the basis of the original K1 and K2 in NR, the propagation delay of the non-terrestrial system can be compensated. In this way, the time length from the base station sending the PDCCH to receiving the Hybrid Automatic Repeat reQuest - ACK (HARQ-ACK) feedback sent by the UE is K1 + K_offset. The time length from the base station sending the UL Grant to the base station receiving the PUSCH sent by the UE is K2 + K_offset.

[0197] It should be noted here that uplink timing advance or timing advance refers to the time advance amount used for uplink alignment (or uplink time synchronization).

[0198] Based on the above, the embodiments of the present application provide an information transmission method, apparatus, terminal, and network device to solve the problem of high power consumption in the existing TA information transmission scheme. Among them, the method, apparatus, terminal, and network device are based on the same inventive concept. Since the principles of solving problems by the method, apparatus, terminal, and network device are similar, the implementations of the method, apparatus, terminal, and network device can be referred to each other, and the repeated parts will not be elaborated.

[0199] The information transmission method provided by the embodiments of the present application is applied to a terminal, as Figure 7 shown, and includes:

[0200] Step 71: Send uplink control information UCI carrying timing advance (TA) information to the network device.

[0201] Among them, the TA information is the TA information corresponding to the terminal.

[0202] The information transmission method provided by the embodiments of the present application can achieve that when transmitting TA, there is no need to frequently trigger RA access or perform operations such as sending SR first, but directly transmit the TA information, thereby simplifying the transmission operation and saving power consumption; it well solves the problem of high power consumption in the existing TA information transmission scheme.

[0203] In the embodiments of the present application, the TA information is included in the channel state information (CSI) of the UCI.

[0204] In this way, the existing CSI reporting mechanism can be reused to maximize the reuse of the existing protocol.

[0205] Among them, sending the uplink control information UCI carrying the timing advance TA information to the network device includes: using the physical uplink control channel PUCCH to carry the TA information in periodic CSI or semi-persistent CSI and sending it to the network device; or using the physical uplink shared channel PUSCH to carry the TA information in aperiodic CSI and sending it to the network device.

[0206] This can reuse the existing PUCCH and PUSCH resources and avoid additional scheduling of PUSCH radio interface resources.

[0207] Regarding sending the TA information using PUCCH, it can be when there is no uplink buffer UL Buffer; regarding sending the TA information using PUSCH, it can be when there is a UL Buffer; this is not limited here.

[0208] In the embodiments of this application, the TA information includes: TA type information, TA group identifier, and TA index value; among them, the TA type information indicates that the TA is a relative TA or an absolute TA.

[0209] This can transmit the TA information more accurately.

[0210] Among them, the transmission priority of the TA information is lower than the transmission priority of the beam management information and the rank indication RI, and higher than the transmission priority of other CSI information except the beam management information and RI.

[0211] This can be scheduled according to the priority when there is a conflict in information transmission and the transmission of each piece of information can be completed normally.

[0212] In the embodiments of this application, sending the uplink control information UCI carrying the timing advance TA information to the network device includes: in the case where the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information (specifically, it can be carried in periodic CSI or semi-persistent CSI), sending the UCI carrying the first TA information to the network device; or in the case where the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information (specifically, it can be carried in aperiodic CSI), and the difference between the first TA information and the second TA information is greater than or equal to a threshold value, sending the UCI carrying the first TA information to the network device.

[0213] This can ensure the normal transmission of the TA information.

[0214] Further, the information transmission method further includes: when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is less than a threshold value, the operation of sending a UCI carrying the first TA information to the network device is not performed.

[0215] This can further save radio resources and reduce power consumption.

[0216] In an embodiment of the present application, sending an uplink control information UCI carrying timing advance TA information to a network device includes: sending TA information to the network device using a first PUCCH format; where the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4; the TA information is modulated by quadrature phase shift keying QPSK or π / 2-binary phase shift keying BPSK; and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0217] Related explanations about "PUCCH format (format) 2, 3, and 4": The physical uplink control channel (PUCCH) is used to carry uplink control information (UCI) such as hybrid automatic repeat request acknowledgment (HARQ-ACK), scheduling request (SR), and channel state information (CSI). NR, that is, 5G, defines 5 PUCCH formats according to transmission requirements. Among them, PUCCH format 0 and 1 are used to carry HARQ-ACK, and format 2, 3, or 4 are used to carry UCI, including all types of uplink control information. PUCCH format 2 is a short format and occupies 1-2 symbols in the time domain. PUCCH format 3 is a long format and occupies 4-14 symbols in the time domain. Both PUCCH format 2 and 3 do not support multi-UE multiplexing. PUCCH format 4 is the same as PUCCH format 3, which is a long format and only occupies 1 PRB in the frequency domain and supports multi-UE multiplexing. Since PUCCH format 0 and 1 are only used for HARQ-ACK, PUCCH format 2, 3, or 4 is used here to carry TA reporting.

[0218] Among them, using π / 2-BPSK can further reduce the PAPR (peak-to-average power ratio) and improve the transmission performance.

[0219] An embodiment of the present application further provides an information transmission method, which is applied to a network device, as Figure 8 shown, and includes:

[0220] Step 81: Receive the uplink control information UCI carrying the timing advance TA information sent by the terminal.

[0221] Wherein, the TA information is the TA information corresponding to the terminal.

[0222] The information transmission method provided by the embodiment of the present application can support the realization that when transmitting the TA, there is no need to frequently trigger RA access or perform operations such as sending SR first, but directly transmit the TA information, thereby simplifying the transmission operation and saving power consumption; it well solves the problem of large power consumption in the existing TA information transmission scheme.

[0223] In the embodiment of the present application, the TA information is included in the channel state information CSI of the UCI.

[0224] In this way, the existing CSI reporting mechanism can be reused to maximize the reuse of the existing protocol.

[0225] Wherein, the uplink control information UCI carrying the timing advance TA information sent by the receiving terminal includes: receiving the periodic CSI or semi-persistent CSI carrying the TA information sent by the terminal using the physical uplink control channel PUCCH; or, receiving the non-periodic CSI carrying the TA information sent by the terminal using the physical uplink shared channel PUSCH.

[0226] In this way, the existing PUCCH and PUSCH resources can be reused to avoid additional scheduling of PUSCH radio interface resources.

[0227] Regarding receiving the TA information sent using the PUCCH, it can be when there is no uplink buffer UL Buffer; regarding receiving the TA information sent using the PUSCH, it can be when there is a UL Buffer; this is not limited herein.

[0228] In the embodiment of the present application, the TA information includes: TA type information, TA group identifier, and TA index value; wherein, the TA type information indicates that the TA is a relative TA or an absolute TA.

[0229] In this way, the TA information can be transmitted more accurately.

[0230] Wherein, the transmission priority of the TA information is lower than the transmission priority of the beam management information and the rank indication RI, and higher than the transmission priority of other CSI information except the beam management information and the RI.

[0231] In this way, when there is a conflict in information transmission, it can be scheduled according to the priority to normally complete the transmission of each piece of information.

[0232] In the embodiments of the present application, the uplink control information UCI carrying the timing advance TA information sent by the receiving terminal includes: the UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information (specifically, it may be carried in periodic CSI or semi-persistent CSI); or, the UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information (specifically, it may be carried in aperiodic CSI), and the difference between the first TA information and the second TA information is greater than or equal to a threshold value.

[0233] This can ensure the normal transmission of TA information.

[0234] Further, the information transmission method further includes: when the TA information belonging to periodic transmission information is not received at the current transmission moment, determining that the TA information at the current transmission moment is the same as the TA information at the previous transmission moment. It can be understood that, that is, when the network device receives periodic TA, if no data is detected, it is considered that TA remains unchanged.

[0235] This can further save air interface resources and reduce power consumption.

[0236] Regarding "the current transmission moment of the TA information belonging to periodic transmission information", it can be understood that the current moment belongs to the transmission moment of periodic TA information; correspondingly, "when the TA information belonging to periodic transmission information is not received at the current transmission moment" can be understood as: when the current moment belongs to the transmission moment of periodic TA information and the TA information is not received.

[0237] In the embodiments of the present application, the uplink control information UCI carrying the timing advance TA information sent by the receiving terminal includes: the TA information sent by the receiving terminal using the first PUCCH format; wherein, the first PUCCH format includes: PUCCH format 2, PUCCH format 3 or PUCCH format 4; the TA information is modulated by quadrature phase shift keying QPSK or π / 2 - binary phase shift keying BPSK; and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed - Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0238] Related explanations about "PUCCH format 2, 3, and 4": The Physical Uplink Control Channel (PUCCH) is used to carry uplink control information (UCI) such as Hybrid Automatic Repeat reQuest - ACK (HARQ - ACK), Scheduling Request (SR), and Channel State Information (CSI). New Radio (NR), which is 5G, defines 5 PUCCH formats according to transmission requirements. Among them, PUCCH format 0 and 1 are used to carry HARQ - ACK, and format 2, 3, or 4 are used to carry UCI, including all types of uplink control information. PUCCH format 2 is a short format, occupying 1 - 2 symbols in the time domain. PUCCH format 3 is a long format, occupying 4 - 14 symbols in the time domain. Neither PUCCH format 2 nor 3 supports multi - UE multiplexing. PUCCH format 4, like PUCCH format 3, is a long format, occupying only 1 Physical Resource Block (PRB) in the frequency domain and supporting multi - UE multiplexing. Since PUCCH format 0 and 1 are only used for HARQ - ACK, PUCCH format 2, 3, or 4 is used here to carry Timing Advance (TA) reporting.

[0239] Among them, using π / 2 - BPSK can further reduce the Peak - to - Average Power Ratio (PAPR) and improve the transmission performance.

[0240] In the embodiments of this application, when specifically using Time Advance, it can be Time Alignment, which is not limited here.

[0241] The following is an example of the information transmission method provided by the embodiments of this application.

[0242] In view of the above - mentioned technical problems, the embodiments of this application provide an information transmission method, which can be specifically implemented as a method for a User Equipment (UE) to report Timing Advance (TA) based on UCI (Uplink Control Information), involving the following content:

[0243] In this application, when the UE updates the TA to the base station, it can be used for:

[0244] 1. The base station calculates the TA Command based on the updated TA and in combination with the measured uplink signal;

[0245] 2. The base station derives the UE - specific K_offset based on the updated TA for uplink and downlink scheduling.

[0246] Accordingly, it can be considered that the UE updating the TA is a new UCI (Uplink Control Information). This application supports the UE TA reporting by defining a new channel state information CSI feedback quantity (Report Quantity). In this way, the UE TA can be reported to the base station periodically or semi-persistently through the PUCCH via the CSI, or reported to the base station aperiodically through the PUSCH. In this way, the CSI reporting mechanism is reused, and it can be reused for reporting together with the existing CSI feedback quantity, or the reporting resources can be configured separately for separate reporting. When there is a UL Buffer, it can be reported to the base station through the aperiodic CSI via the PUSCH. When there is no UL Buffer, it can be reported to the base station through the periodic or semi-persistent CSI via the PUCCH. This avoids occupying additional PUSCH and RA resources and makes full use of the existing CSI resources. The modification to the existing protocol is relatively small, only a new CSI feedback quantity (adding TA in the CSI) and the TA load format need to be added, and the rest can reuse the existing protocol. This solution specifically involves:

[0247] 1. CSI feedback quantity;

[0248] TA can be added in the reportQuantity (report quality) of the CSI-ReportConfig (report configuration); for the CSI feedback quantity of a single TA, the relevant measurement resource settings may not be configured (this is the difference for CSI reporting. When CSI is reported as UCI, CSI needs to measure the CSI-RS reference signal configured by the base station and report according to the measurement results. For TA, there is no need to configure a dedicated measurement reference signal for the UE. The UE can obtain the TA by measuring the downlink signal and then adjust itself).

[0249] Specifically, a new feedback quantity can be added in the uplink status information reporting configuration to support the reporting of uplink control information for uplink timing advance. The added feedback quantity can be as follows:

[0250] Uplink status information reference signal resource indicator - rank indicator - precoding matrix indicator - channel quality status indicator - uplink timing advance cri-RI-PMI-CQI-TA;

[0251] Uplink status information reference signal resource indicator - rank indicator - first-level codebook - uplink timing advance cri-RI-i1-TA;

[0252] Uplink status information reference signal resource indicator - rank indicator - layer indicator - precoding matrix indicator - channel quality status indicator - uplink timing advance cri-RI-LI-PMI-CQI-TA;

[0253] Uplink timing advance TA.

[0254] 2. The TA formats reported by the UE are divided into two cases, supporting long - format TA and not supporting long - format TA;

[0255] A. During the initial access process, the UE needs to report the Full (complete) TA to the base station. In this case, long - format TA needs to be supported. In the RRC Connected state, the UE can update the relative TA to the base station. The A / R indication (i.e., the TA type indication, corresponding to the above TA type information) indicates whether it is an absolute TA or a relative TA report. It can be: when A / R is 1, it is an absolute TA; when A / R is 0, it is a relative TA. The TAG (TA Group) ID (identifier) is the ID of the TAG. The TA Command is the T A (i.e., TA) index value. The relative TA can be 6 bits, and the absolute TA can be 12 bits. For the method of determining the TA according to this indication, refer to the existing solutions. Here, it can be seen that TA adds a maximum load of 13 bits to CSI feedback. Considering the capacity of PUCCH format 3 or 4, the requirements can be met. Examples are as Figure 9 and Figure 10 shown, where the

[0256] R bit can be other loads or no load, and Oct represents a byte. A / R is the absolute or relative TA identifier. When A / R is 1, it represents that the reported is an absolute TA, which is used for the UE to report the absolute TA during initial access. When A / R is 0, it represents that the reported is a relative TA. When the UE is in the connected state, it reports the relative TA to the base station. The TA command is the timing advance command, which contains the TA value. The absolute TA is 12 bits, and the relative TA is 6 bits. The TAG ID is the TA Group ID, the identifier of the TA group, and different TA groups maintain their own TAs.

[0257] B. If the long - format TA (absolute TA) is not considered, only relative TA can be supported. Examples are as Figure 11 shown, where Oct represents a byte.

[0258] 3. CSI priority;

[0259] Considering that the TA reported by the UE is used to derive the UE-specific K_offset for uplink and downlink scheduling or for calculating the TA Command, when there are resource conflicts among the rank indication RI, the uplink status information reference signal resource indication CRI, the channel quality status indication CQI, the uplink timing advance TA, or the CSI request resources for beam management reported by the UE simultaneously, the priorities from high to low are beam management > RI > TA > CRI and CQI (corresponding to other CSI except beam management and RI). This priority means that the transmission priority of the TA information described above is lower than that of the beam management information and the rank indication RI, and higher than that of other CSI information except the beam management information and RI.

[0260] 4. For the scenario where both periodic and / or semi-persistent TA reporting and aperiodic TA reporting are configured, the RRC layer can configure a threshold parameter. When preparing for periodic TA reporting, if the difference between the TA value to be reported and the most recent aperiodic TA is less than the threshold, the UE can skip the periodic TA reporting (this is for the case where the most recent TA reporting is an aperiodic TA; otherwise, if the most recent TA reporting is a periodic TA, the current periodic TA must be reported; corresponding to the above, in the case where the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information, sending a UCI carrying the first TA information to the network device; in the case where the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to the threshold value, sending a UCI carrying the first TA information to the network device; in the case where the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is less than the threshold value, not performing the operation of sending a UCI carrying the first TA information to the network device).

[0261] When the base station receives a periodic TA and does not detect data, it considers the TA unchanged (corresponding to the above, in the case where the TA information belonging to periodic transmission information is not received at the current transmission moment, determining that the TA information at the current transmission moment is the same as the TA information at the previous transmission moment). This can further save radio resources. The following is an example of the definition of the threshold value:

[0262] Uplink timing advance reporting threshold value thresholdTA: INTEGER (1…64).

[0263] 5. Modulation and coding scheme;

[0264] The TA as UCI can be transmitted through PUCCH format 2, 3, or 4, modulated by QPSK or π / 2-BPSK; in addition, when the load of the TA (without other UCI except the TA, that is, not including the other UCI) is less than or equal to 11 bits (a specific implementation example of the above first bit), Reed-Muller code is used for encoding, and when the load of the TA (without the other UCI) is greater than 11 bits, Polar code is used for encoding.

[0265] The following is a specific example of this solution, such as Figure 12 shown as follows:

[0266] Suppose a UE reports TA, the TA reporting period is 10 ms, the threshold is 5, and the non-periodic TA is reported when there is a PUSCH scheduling every time it is greater than 5 ms. As can be seen from the figure, when there is a UL Buffer, the TA can be reported through the PUSCH, and when there is no UL Buffer, the TA can be reported through the periodic CSI on the PUCCH (uplink control channel). Compared with the existing method, it has the advantages of power saving, saving PUSCH resources (avoiding an additional separate call to the PUSCH to transmit TA information), being processed at the MAC layer, and having less modification to the existing protocol.

[0267] As can be seen from the above, the solution provided by the embodiment of the present application involves:

[0268] 1. A method for ensuring that a UE reports the timing advance (TA) in a timely manner through the PUCCH or PUSCH based on UCI.

[0269] 2. Based on 1, by configuring a new type of increased CSI feedback amount to support the reporting of TA in the CSI, the existing CSI reporting mechanism can be reused to maximize the reuse of the existing protocol.

[0270] 3. Based on 2, the format for the UE to report TA through the CSI is defined, so as to support the reporting of TA on the PUCCH and PUSCH, reuse the existing PUCCH and PUSCH resources, and avoid an additional increase in the scheduling of PUSCH air interface resources.

[0271] 4. Based on 3, the priority of the new TA reporting in the CSI reporting is defined to ensure that when there is a conflict between the TA reporting resources and other CSI reporting resources, the scheduling can be obtained according to the priority.

[0272] 5. Based on 4, the threshold value for the UE to report TA is defined. By comparing the difference between the currently prepared TA to be sent and the recently reported non-periodic TA, when it is less than the threshold value, the periodic TA reporting can be cancelled to further save PUCCH resources.

[0273] In summary, compared with the existing methods, the present solution has the advantages of power saving (more power saving compared with the above-mentioned Method 1 through PRACH; compared with the above-mentioned Methods 2 and 3, in the case of no UL Buffer scenario, for Methods 2 and 3 to complete a TA transmission, an SR needs to be sent first and then the base station schedules the UE to send PUSCH, and in this scenario, the present solution is also more power saving), reusing the existing PUCCH and PUSCH resources, saving PUSCH resources (avoiding the need to separately call PUSCH additionally to transmit TA information), being processed at the MAC layer, and having relatively small modifications to the existing protocol.

[0274] The embodiment of the present application also provides a terminal, as Figure 13 shown, including a memory 131, a transceiver 132, and a processor 133:

[0275] The memory 131 is used to store computer programs; the transceiver 132 is used to receive and send data under the control of the processor 133; the processor 133 is used to read the computer programs in the memory 131 and perform the following operations:

[0276] Send uplink control information UCI carrying timing advance TA information to a network device through the transceiver 132.

[0277] The terminal provided by the embodiment of the present application sends uplink control information UCI carrying timing advance TA information to a network device; it can achieve that when transmitting TA, there is no need to frequently trigger RA access or perform operations such as sending SR first, but directly transmit TA information, thereby simplifying the transmission operation and saving power consumption; it well solves the problem of large power consumption in the prior art for the TA information transmission solution.

[0278] Specifically, the transceiver 132 is used to receive and send data under the control of the processor 133.

[0279] Among them, in Figure 13 , the bus architecture may include any number of interconnected buses and bridges, specifically, various circuits represented by one or more processors represented by the processor 133 and a memory represented by the memory 131 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and therefore, they will not be further described herein. The bus interface provides an interface. The transceiver 132 may be multiple components, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables, etc. For different user equipment, the user interface 134 may also be an interface capable of externally connecting and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0280] The processor 133 is responsible for managing the bus architecture and general processing, and the memory 131 can store data used by the processor 133 when executing operations.

[0281] Optionally, the processor 133 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device). The processor may also adopt a multi-core architecture.

[0282] The processor is used to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and the memory may also be physically separated.

[0283] Wherein, the TA information is included in the channel state information CSI of the UCI.

[0284] In the embodiments of the present application, sending the uplink control information UCI carrying the timing advance TA information to the network device includes: using the physical uplink control channel PUCCH to carry the TA information in the periodic CSI or semi-persistent CSI and sending it to the network device; or using the physical uplink shared channel PUSCH to carry the TA information in the aperiodic CSI and sending it to the network device.

[0285] In the embodiments of the present application, the TA information includes: TA type information, TA group identifier, and TA index value; wherein, the TA type information indicates that the TA is a relative TA or an absolute TA.

[0286] Wherein, the transmission priority of the TA information is lower than the transmission priority of the beam management information and the rank indication RI, and higher than the transmission priority of other CSI information except the beam management information and the RI.

[0287] In an embodiment of the present application, sending uplink control information UCI carrying timing advance TA information to a network device includes: when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information, sending UCI carrying the first TA information to the network device; or, when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value, sending UCI carrying the first TA information to the network device.

[0288] Further, the operation further includes: when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is less than the threshold value, not performing the operation of sending UCI carrying the first TA information to the network device.

[0289] Among them, sending uplink control information UCI carrying timing advance TA information to a network device includes: using a first PUCCH format to send TA information to the network device; where the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4; the TA information is modulated by quadrature phase shift keying QPSK or π / 2-binary phase shift keying BPSK; and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0290] It should be noted here that the above terminal provided in the embodiment of the present application can implement all the method steps implemented in the above method embodiment of the terminal side, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiment will not be specifically described in this embodiment.

[0291] An embodiment of the present application further provides a network device, as Figure 14 shown, including a memory 141, a transceiver 142, and a processor 143:

[0292] The memory 141 is used to store a computer program; the transceiver 142 is used to transmit and receive data under the control of the processor 143; the processor 143 is used to read the computer program in the memory 141 and perform the following operations:

[0293] Through the transceiver 142, receive the uplink control information UCI carrying the timing advance TA information sent by the receiving terminal.

[0294] The network device provided by the embodiment of the present application receives the uplink control information UCI carrying the timing advance TA information sent by the receiving terminal; it can support the realization that when transmitting TA, there is no need to frequently trigger RA access or operations such as sending SR first, but directly transmit the TA information, thereby simplifying the transmission operation and saving power consumption; it well solves the problem of large power consumption in the prior art for the TA information transmission scheme.

[0295] Specifically, the transceiver 142 is used to receive and send data under the control of the processor 143.

[0296] Among them, in Figure 14 The bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by the processor 143 and the memory represented by the memory 141 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 142 may be multiple elements, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on the transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables and other transmission mediums. The processor 143 is responsible for managing the bus architecture and general processing, and the memory 141 can store the data used by the processor 143 when executing operations.

[0297] The processor 143 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0298] Among them, the TA information is included in the channel state information CSI of the UCI.

[0299] In the embodiment of the present application, the uplink control information UCI carrying the timing advance TA information sent by the receiving terminal includes: receiving the periodic CSI or semi-persistent CSI carrying the TA information sent by the terminal using the physical uplink control channel PUCCH; or receiving the non-periodic CSI carrying the TA information sent by the terminal using the physical uplink shared channel PUSCH.

[0300] Among them, the TA information includes: TA type information, TA group identifier, and TA index value; among them, the TA type information indicates that the TA is a relative TA or an absolute TA.

[0301] In the embodiments of the present application, the transmission priority of the TA information is lower than the transmission priority of beam management information and rank indication RI, and higher than the transmission priority of other CSI information except the beam management information and RI.

[0302] Among them, the uplink control information UCI carrying timing advance TA information sent by the receiving terminal includes: UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information; or, UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to non-periodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value.

[0303] Furthermore, the operation further includes: when the TA information belonging to periodic transmission information is not received at the current transmission moment, determining that the TA information at the current transmission moment is the same as the TA information at the previous transmission moment.

[0304] Among them, the uplink control information UCI carrying timing advance TA information sent by the receiving terminal includes: TA information sent by the receiving terminal using the first PUCCH format; among them, the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4; the TA information is modulated by quadrature phase shift keying QPSK or π / 2-binary phase shift keying BPSK; and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0305] It should be noted here that the above network device provided by the embodiments of the present application can implement all the method steps implemented by the method embodiments on the network device side, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0306] The embodiments of the present application further provide an information transmission device, which is applied to a terminal, as Figure 15 shown, and includes:

[0307] The first sending unit 151 is configured to send uplink control information UCI carrying timing advance TA information to a network device.

[0308] By sending the uplink control information UCI carrying the timing advance TA information to the network device, the information transmission device provided in the embodiment of the present application can achieve that when transmitting TA, it is no longer necessary to frequently trigger RA access or perform operations such as sending SR first, but directly transmit the TA information, thereby simplifying the transmission operation and saving power consumption. It well solves the problem of large power consumption in the prior art for the TA information transmission scheme.

[0309] Wherein, the TA information is included in the channel state information CSI of the UCI.

[0310] In the embodiment of the present application, sending the uplink control information UCI carrying the timing advance TA information to the network device includes: using the physical uplink control channel PUCCH to carry the TA information in the periodic CSI or semi-persistent CSI and sending it to the network device; or using the physical uplink shared channel PUSCH to carry the TA information in the aperiodic CSI and sending it to the network device.

[0311] Wherein, the TA information includes: TA type information, TA group identifier, and TA index value; wherein, the TA type information indicates that the TA is a relative TA or an absolute TA.

[0312] In the embodiment of the present application, the transmission priority of the TA information is lower than the transmission priority of the beam management information and the rank indication RI, and higher than the transmission priority of other CSI information except the beam management information and the RI.

[0313] Wherein, sending the uplink control information UCI carrying the timing advance TA information to the network device includes: when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information, sending the UCI carrying the first TA information to the network device; or when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value, sending the UCI carrying the first TA information to the network device.

[0314] Further, the information transmission device further includes: a first processing unit, configured to, when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is less than a threshold value, not perform the operation of sending the UCI carrying the first TA information to the network device.

[0315] Wherein, sending the uplink control information UCI carrying the timing advance TA information to the network device includes: sending the TA information to the network device in a first PUCCH format; wherein, the first PUCCH format includes: PUCCH format 2, PUCCH format 3 or PUCCH format 4; the TA information is modulated by quadrature phase shift keying QPSK or π / 2-binary phase shift keying BPSK; and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0316] It should be noted here that the above device provided in the embodiments of the present application can implement all the method steps implemented in the above method embodiments on the terminal side, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0317] The embodiments of the present application further provide an information transmission device, which is applied to a network device, as Figure 16 shown, including:

[0318] A first receiving unit 161, configured to receive the uplink control information UCI carrying the timing advance TA information sent by the terminal.

[0319] The information transmission device provided in the embodiments of the present application can support the realization that when transmitting the TA, there is no need to frequently trigger RA access or operations such as sending SR first, but directly transmit the TA information, thereby simplifying the transmission operation and saving power consumption; it well solves the problem of large power consumption in the prior art for the information transmission scheme of TA.

[0320] Wherein, the TA information is included in the channel state information CSI of the UCI.

[0321] In an embodiment of the present application, the uplink control information UCI carrying timing advance TA information sent by the receiving terminal includes: receiving periodic CSI or semi-persistent CSI carrying TA information sent by the terminal using the physical uplink control channel PUCCH; or, receiving aperiodic CSI carrying TA information sent by the terminal using the physical uplink shared channel PUSCH.

[0322] Wherein, the TA information includes: TA type information, TA group identifier, and TA index value; wherein, the TA type information indicates that the TA is a relative TA or an absolute TA.

[0323] In an embodiment of the present application, the transmission priority of the TA information is lower than the transmission priority of beam management information and rank indication RI, and higher than the transmission priority of other CSI information except the beam management information and RI.

[0324] Wherein, the uplink control information UCI carrying timing advance TA information sent by the receiving terminal includes: UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information; or, UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value.

[0325] Further, the information transmission device further includes: a first determination unit, configured to determine that the TA information at the current transmission moment is the same as the TA information at the previous transmission moment when the TA information belonging to periodic transmission information is not received at the current transmission moment.

[0326] Wherein, the uplink control information UCI carrying timing advance TA information sent by the receiving terminal includes: TA information sent by the receiving terminal using the first PUCCH format; wherein, the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4; the TA information is modulated by quadrature phase shift keying QPSK or π / 2-binary phase shift keying BPSK; and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

[0327] It should be noted that the above device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments on the network device side, and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described herein again.

[0328] It should be noted that the division of units in the embodiments of the present application is illustrative. It is only a logical function division, and there may be other division methods in actual implementation. In addition, in each embodiment of the present application, the functional units can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0329] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. The foregoing storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs.

[0330] The embodiments of the present application also provide a processor-readable storage medium. The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the above information transmission method on the terminal side; or, the computer program is used to cause the processor to execute the above information transmission method on the network device side.

[0331] The processor-readable storage medium can be any available medium or data storage device accessible by the processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical discs (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memories (NANDFLASH), solid state drives (SSD)).

[0332] Among them, the implementation embodiments of the above information transmission method on the terminal side or network device side are all applicable to the embodiments of this processor-readable storage medium and can achieve the same technical effects.

[0333] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) containing computer-usable program code.

[0334] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the specified functions in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0335] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the processor-readable memory generate a manufactured article including instruction means that implement the specified functions in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0336] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the specified functions in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0337] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. An information transmission method, applied to a terminal, characterized in that, Including: Sending uplink control information UCI carrying timing advance TA information to a network device; Wherein, the TA information is included in the channel state information CSI of the UCI; The sending of the uplink control information UCI carrying timing advance TA information to the network device includes: Using the physical uplink control channel PUCCH to carry the TA information in periodic CSI or semi-persistent CSI and sending it to the network device; or, Using the physical uplink shared channel PUSCH to carry the TA information in aperiodic CSI and sending it to the network device.

2. The information transmission method according to claim 1, characterized in that, The TA information includes: TA type information, TA group identifier, and TA index value; Wherein, the TA type information indicates that the TA is a relative TA or an absolute TA.

3. The information transmission method according to claim 1, characterized in that, The transmission priority of the TA information is lower than that of beam management information and rank indication RI, and higher than that of other CSI information except the beam management information and RI.

4. The information transmission method according to any one of claims 1 to 3, characterized in that, The sending of the uplink control information UCI carrying timing advance TA information to the network device includes: When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information, sending the UCI carrying the first TA information to the network device; or, When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value, sending the UCI carrying the first TA information to the network device.

5. The information transmission method according to claim 4, characterized in that, Also including: When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is less than the threshold value, not performing the operation of sending the UCI carrying the first TA information to the network device.

6. The information transmission method according to claim 1, characterized in that, The sending of the uplink control information UCI carrying timing advance TA information to the network device includes: Using the first PUCCH format to send the TA information to the network device; Wherein, the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4; The TA information is modulated by quadrature phase shift keying QPSK or π / 2 - binary phase shift keying BPSK; and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed - Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

7. An information transmission method, applied to a network device, characterized in that, Including: Receiving uplink control information UCI carrying timing advance TA information sent by a terminal; Wherein, the TA information is included in the channel state information CSI of the UCI; The receiving of the uplink control information UCI carrying timing advance TA information sent by the terminal includes: Receive the periodic CSI or semi-persistent CSI carrying TA information sent by the terminal using the physical uplink control channel (PUCCH); or, Receive the aperiodic CSI carrying TA information sent by the terminal using the physical uplink shared channel (PUSCH).

8. The information transmission method according to claim 7, characterized in that, The TA information includes: TA type information, TA group identifier, and TA index value; Wherein, the TA type information indicates that the TA is a relative TA or an absolute TA.

9. The information transmission method according to claim 7, characterized in that, The transmission priority of the TA information is lower than that of beam management information and rank indication (RI), and higher than that of other CSI information except the beam management information and RI.

10. The information transmission method according to claim 7, characterized in that, The uplink control information (UCI) carrying the timing advance (TA) information sent by the receiving terminal includes: The UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information; or, The UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold.

11. The information transmission method according to claim 10, wherein It further includes: When the TA information belonging to periodic transmission information is not received at the current transmission moment, determine that the TA information at the current transmission moment is the same as the TA information at the previous transmission moment.

12. The information transmission method according to claim 7, wherein The uplink control information (UCI) carrying the timing advance (TA) information sent by the receiving terminal includes: The TA information sent by the receiving terminal using the first PUCCH format; wherein, the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4; The TA information is modulated by quadrature phase shift keying (QPSK) or π / 2-binary phase shift keying (BPSK); and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

13. A terminal, wherein It includes a memory, a transceiver, and a processor: The memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Send, through the transceiver, the uplink control information (UCI) carrying the timing advance (TA) information to the network device; Wherein, the TA information is included in the channel state information (CSI) of the UCI; The sending of the uplink control information (UCI) carrying the timing advance (TA) information to the network device includes: Use the physical uplink control channel (PUCCH) to carry the TA information in periodic CSI or semi-persistent CSI and send it to the network device; or, Using the Physical Uplink Shared Channel (PUSCH), the TA information is carried in the aperiodic CSI and sent to the network device.

14. The terminal according to claim 13, wherein The TA information includes: TA type information, TA group identifier, and TA index value; Among them, the TA type information indicates that the TA is a relative TA or an absolute TA.

15. The terminal according to claim 13, wherein The transmission priority of the TA information is lower than that of the beam management information and the rank indicator (RI), and higher than that of other CSI information except the beam management information and the RI.

16. The terminal according to any one of claims 13 to 15, wherein Sending the uplink control information (UCI) carrying the Timing Advance (TA) information to the network device includes: When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information, sending the UCI carrying the first TA information to the network device; or, When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to the threshold value, sending the UCI carrying the first TA information to the network device.

17. The terminal according to claim 16, wherein The operation further includes: When the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is less than the threshold value, not performing the operation of sending the UCI carrying the first TA information to the network device.

18. The terminal according to claim 13, wherein Sending the uplink control information (UCI) carrying the Timing Advance (TA) information to the network device includes: Using the first Physical Uplink Control Channel (PUCCH) format to send the TA information to the network device; Among them, the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4; The TA information is modulated by Quadrature Phase Shift Keying (QPSK) or π / 2-Binary Phase Shift Keying (BPSK); and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using the Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using the Polar code.

19. A network device, wherein Including a memory, a transceiver, and a processor: The memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Receiving, through the transceiver, the uplink control information (UCI) carrying the Timing Advance (TA) information sent by the terminal; Among them, the TA information is included in the Channel State Information (CSI) of the UCI; Receiving the uplink control information (UCI) carrying the Timing Advance (TA) information sent by the terminal includes: Receiving the periodic CSI or semi-persistent CSI carrying the TA information sent by the terminal using the Physical Uplink Control Channel (PUCCH); or, Receive the aperiodic CSI carrying TA information sent by the terminal using the Physical Uplink Shared Channel (PUSCH).

20. The network device according to claim 19, wherein The TA information includes: TA type information, TA group identifier, and TA index value; Wherein, the TA type information indicates that the TA is a relative TA or an absolute TA.

21. The network device according to claim 19, wherein The transmission priority of the TA information is lower than that of beam management information and rank indication (RI), and higher than that of other CSI information except the beam management information and RI.

22. The network device according to claim 19, wherein The uplink control information (UCI) carried by the receiving terminal and carrying timing advance (TA) information includes: The UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, and the second TA information transmitted last time belongs to periodic transmission information or semi-persistent transmission information; or, The UCI carrying the first TA information sent by the receiving terminal when the first TA information to be transmitted this time belongs to periodic transmission information or semi-persistent transmission information, the second TA information transmitted last time belongs to aperiodic transmission information, and the difference between the first TA information and the second TA information is greater than or equal to a threshold value.

23. The network device according to claim 22, wherein The operation further includes: When the TA information belonging to periodic transmission information is not received at the current transmission moment, determining that the TA information at the current transmission moment is the same as the TA information at the previous transmission moment.

24. The network device according to claim 19, wherein The uplink control information (UCI) carried by the receiving terminal and carrying timing advance (TA) information includes: The TA information sent by the receiving terminal using the first Physical Uplink Control Channel (PUCCH) format; wherein, the first PUCCH format includes: PUCCH format 2, PUCCH format 3, or PUCCH format 4; The TA information is modulated by Quadrature Phase Shift Keying (QPSK) or π / 2-Binary Phase Shift Keying (BPSK); and / or, when the load of the TA information is less than or equal to the first bit, the TA information is encoded using Reed-Muller code; when the load of the TA information is greater than the first bit, the TA information is encoded using Polar code.

25. An information transmission device, applied to a terminal, wherein Includes: A first sending unit, configured to send uplink control information (UCI) carrying timing advance (TA) information to a network device; Wherein, the TA information is included in the Channel State Information (CSI) of the UCI; The sending of the uplink control information (UCI) carrying timing advance (TA) information to the network device includes: Using the Physical Uplink Control Channel (PUCCH), carrying the TA information in periodic CSI or semi-persistent CSI and sending it to the network device; or, Using the Physical Uplink Shared Channel (PUSCH), carrying the TA information in aperiodic CSI and sending it to the network device.

26. An information transmission device, applied to a network device, wherein Includes: A first receiving unit, configured to receive uplink control information (UCI) carried by a terminal and carrying timing advance (TA) information; Wherein, the TA information is included in the Channel State Information (CSI) of the UCI; The uplink control information (UCI) carried by the receiving terminal and carrying timing advance (TA) information includes: Receiving the periodic CSI or semi-persistent CSI carrying TA information sent by the terminal using the physical uplink control channel (PUCCH); or, Receiving the aperiodic CSI carrying TA information sent by the terminal using the physical uplink shared channel (PUSCH).

27. A processor-readable storage medium, wherein The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the information transmission method according to any one of claims 1 to 6; or, The computer program is used to cause the processor to execute the information transmission method according to any one of claims 7 to 12.

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