CN115361737A

CN115361737A - Method and equipment used for wireless communication

Info

Publication number: CN115361737A
Application number: CN202210328171.1A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-10-20
Filing date: 2019-10-20
Publication date: 2022-11-18
Also published as: CN112689325B; CN112689325A; WO2021077960A1

Abstract

A method and arrangement in a communication node for wireless communication is disclosed. The first node receives the first information and sends a first signal; the first information comprises first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal. When the communication distance between the user equipment and the base station is long, especially when satellite communication is involved, the propagation delay between the user equipment and the base station is far larger than that of traditional ground communication.

Description

Method and equipment used for wireless communication

The present application is a divisional application of the following original applications:

application date of the original application: 10 and 20 months in 2019

- -application number of the original application: 201910997024.1

The invention of the original application is named: method and equipment used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus with large delay.

Background

In the face of higher and higher communication demands, 3GPP (3 rd generation partner Project) started to research Non-Terrestrial Network communication (NTN), and 3GPP ran #80 times of conference decided to develop a research Project of "NR (New Radio, new air interface) supporting Non-Terrestrial Network" which is a continuation of the previous research Project of "NR supporting Non-Terrestrial Network" (RP-171450), in which transmission timing is an important research target.

Timing Advance (TA) is used by a User Equipment (UE) to Advance (Advance)/Delay (Delay) a message to a base station (eNodeB, eNB), so as to compensate for the influence of Propagation Delay (Propagation Delay) and ensure that messages sent by different terminal devices are aligned within a receiving window of the base station.

Disclosure of Invention

In the current 3GPP protocol, in a Random Access (RA) phase, a user equipment sends a Random Access Preamble sequence to a base station, the base station determines a Timing Advance (Timing Advance) of the user equipment by using the Preamble sent by the user equipment, and sends a Timing Advance Command (TAC) to the user equipment as a part of a Random Access Response (RAR), wherein the TAC includes an Index value (Index) T _A . And multiplying the index value in the timing advance command by the time granularity to obtain the sending time advance of the user equipment. In an LTE (Long Term Evolution) system, the timing advance command includes 11 information bits, the time granularity is 16 and the basic time unit T _s Wherein T is _s = 1/(15000 × 2018) sec; in a 5G (5 th Generation) NR system, a timing advance command includes 12 information bits, and the time granularity is 16 × 64/2 μ basic time units T _c Wherein, the value of mu is one of {0,1,2,3,4}, and respectively corresponds to a scene with Subcarrier spacing (SCS) equal to one of {15kHz,30kHz,60kHz,120kHz,240kHz }, T _c ＝1/(Δf _max ·N _f ) And seconds. After the random access, the mobile station carries out the random access,the method includes the steps that connection is established between user equipment and a base station, in an RRC _ CONNECTED state, the base station needs to be responsible for maintaining Timing Advance of the user equipment, and a Timing Advance (TA) Command (MAC) CE (media Access Control) CE (Control Element) sends an adjustment value of the Timing Advance according to quantity to the user equipment through a TAC (Timing Advance Command), wherein the TAC MAC CE contains the TA Advance Command. In LTE and NR systems, the timing advance command in TACMAC CE includes 6 information bits.

Since the timing advance specified in the current 3GPP protocol is designed for Terrestrial communication networks (TN), the maximum transmission distance supported by the time granularity of the timing advance command is about several tens of kilometers. In non-terrestrial communication, the transmission distance and the time delay between a satellite and user equipment are far longer than those of a terrestrial communication network, the related parameters of the current timing advance command cannot meet the requirements of non-terrestrial communication at the same time, and the timing advance command needs to be redesigned according to the timing advance in a large time delay scene.

In view of the above, the present application provides a solution. In the description of the above problem, the NTN scenario is only used as an example of the application of the present application; the application is also applicable to the scene of ground transmission, for example, and achieves the technical effect similar to the technical effect in the NTN scene. In addition, the adoption of a unified solution for different scenarios also helps to reduce hardware complexity and cost.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in any node of the present application may be applied to any other node. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method in a first node used for wireless communication, characterized by comprising:

receiving first information;

transmitting a first signal;

wherein the first information comprises first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal.

As an embodiment, the problem to be solved by the present application includes: how the user equipment determines the transmission start time of the first signal when the time delay between the base station and the user equipment is large. The above method solves this problem by determining the transmission start time of the first signal jointly by the first sub-information used for determining the first time value and the second sub-information used for determining the K.

As an embodiment, the characteristics of the above method include: the first information is used for determining the sending starting moment of the first signal; the product of the first time value and the K is the sending starting moment of the first signal; whether the first sub-information is used to indicate that the first time value relates to a parameter of a sender of the first information; the first sub-information and the second sub-information are also used to determine an adjustment value for a timing advance.

As an example, the benefits of the above method include: and adjusting the first time value determined by the first sub-information according to the time delay between the base station and the user equipment, so as to adapt to different value ranges of timing advance, and further ensure that the user equipment can determine the sending starting moment of the first signal no matter a scene with a larger height of a second node in the application or a scene with a larger inclination angle between the second node and the user equipment occurs.

According to one aspect of the application, the method is characterized by comprising the following steps:

receiving a first signaling;

the first signaling is used to determine K1 candidate time values; the first time value is one of the K1 candidate time values; the first sub-information is used to determine the first time value from the K1 candidate time values.

As an embodiment, the characteristics of the above method include: and selecting a proper candidate time value according to the parameter of the sender of the first information, so that the first information can be optimized, the problem of overlarge control information overhead caused by the fact that the first information occupies excessive information bits is avoided, and meanwhile, the user equipment is ensured to obtain accurate sending starting time of the first signal.

According to an aspect of the present application, wherein the first sub information includes Q1 information bits, and the second sub information includes Q2 information bits; said Q1 and said Q2 are both positive integers and the sum of said Q1 and said Q2 is fixed; the Q1 is related to a parameter of a sender of the first information.

According to one aspect of the application, a parameter of a sender of the first information is used to determine whether the first sub-information is used to indicate the first time value.

As an embodiment, the characteristics of the above method include: the first sub-information is used to indicate the first time value when a parameter of a sender of the first information satisfies a condition; the parameter of the sender of the first information comprises the height of the sender of the first information; the parameter of the sender of the first information includes a type of the sender of the first information.

According to one aspect of the present application, the first sub information and the second sub information are used to determine an adjustment value of a timing advance.

transmitting a second signal;

wherein the second signal is used by a recipient of the second signal to determine the first sub-information and the second sub-information.

According to one aspect of the present application, the number of bits occupied by the first sub information and the second sub information is configurable respectively.

The application discloses a method in a second node used for wireless communication, which is characterized by comprising the following steps:

sending first information;

receiving a first signal;

sending a first signaling;

wherein the first signaling is used to determine K1 candidate time values; the first time value is one of the K1 candidate time values; the first sub-information is used to determine the first time value from the K1 candidate time values.

According to one aspect of the application, a parameter of the second node is used to determine whether the first sub-information is used to indicate the first time value.

receiving a second signal;

wherein the second signal is used by the second node to determine the first sub-information and the second sub-information.

The present application discloses a first node for wireless communication, comprising:

a first receiver receiving first information;

a first transmitter that transmits a first signal;

The present application discloses a second node for wireless communication, comprising:

a second transmitter that transmits the first information;

a second receiver receiving the first signal;

As an example, compared with the conventional scheme, the method has the following advantages:

when the communication distance between the user equipment and the base station is long, especially when satellite communication is involved, the propagation delay between the user equipment and the base station is far greater than that of traditional ground communication.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

FIG. 1 shows a flow diagram of transmission of first information and a first signal according to one embodiment of the present application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

FIG. 4 shows a schematic diagram of a first node and a second node according to an embodiment of the present application;

FIG. 5 shows a flow diagram of wireless signal transmission according to one embodiment of the present application;

fig. 6 illustrates a schematic diagram in which first sub information and second sub information are transmitted through a TAC MAC CE according to an embodiment of the present application;

fig. 7 shows a schematic diagram of first and second sub-information sent by a MAC RAR according to an embodiment of the present application;

fig. 8 is a diagram illustrating the number of information bits occupied by the first sub information and the second sub information according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of K1 candidate time values according to an embodiment of the present application;

FIG. 10 illustrates a diagram where parameters of a sender of first information are used to determine whether the first sub-information is used to indicate the first time value, according to one embodiment of the present application;

fig. 11 shows a schematic diagram of first sub-information and second sub-information being used to determine an adjustment value for a timing advance according to an embodiment of the application;

FIG. 12 shows a schematic diagram of a second signal being used to determine a first sub-information and a second sub-information according to an embodiment of the application;

FIG. 13 shows a block diagram of a processing device for use in a first node according to an embodiment of the present application;

figure 14 shows a block diagram of a processing arrangement for use in a second node according to an embodiment of the present application;

FIG. 15 shows a schematic diagram of parameters used to determine K1 candidate time values according to one embodiment of the present application.

FIG. 16 shows a schematic diagram of parameters used to determine K1 candidate time values according to another embodiment of the present application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments in the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a flow chart of transmission of first information and a first signal according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step, and it is particularly emphasized that the sequence of the blocks in the figure does not represent a chronological relationship between the represented steps.

In embodiment 1, a first node in the present application receives the first information in step 101; transmitting a first signal in step 102; the first information comprises first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal.

As one embodiment, the first signal is a baseband signal.

As one embodiment, the first signal is a wireless signal.

As an embodiment, the first information is transmitted through higher layer signaling.

As an embodiment, the first information is transmitted through physical layer signaling.

As an embodiment, the first information includes all or part of a MAC (Medium Access Control) CE (Control Element).

As an embodiment, the first information includes all or part of a MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element).

As an embodiment, the first information includes all or part of a MAC (Medium Access Control) RAR (Random Access Response).

As an embodiment, the first information is all or part of a Timing Advance Command (TAC).

As an embodiment, the first information is used to determine a transmission start time of the first signal.

As an embodiment, the first sub information is transmitted through higher layer signaling.

As an embodiment, the first sub information is transmitted through physical layer signaling.

As an embodiment, the first sub-Information includes all or part of an IE (Information Element) in a Radio Resource Control (RRC) signaling.

As an embodiment, the first sub Information includes all or part of a Field (Field) in an IE (Information Element) in an RRC (Radio Resource Control) signaling.

As an embodiment, the first sub information is configurable.

As an embodiment, the first sub information is configured by a Radio Resource Control (RRC) message.

As an embodiment, the first sub Information includes all or part of a SIB (System Information Block) message.

As an embodiment, the first sub information includes all or part of a MAC (Medium Access Control) CE (Control Element).

As an embodiment, the first sub information includes all or part of a MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element).

As an embodiment, the first sub information includes all or part of a MAC (Medium Access Control) RAR (Random Access Response).

As an embodiment, the first sub information is used for a Random Access (RA) procedure.

As an embodiment, the first sub information is used for a timing advance update process.

As an embodiment, the first sub-information is used for uplink transmission after completing a random access procedure.

As an embodiment, the first sub-information is used to indicate the first time value.

As an embodiment, the first sub-information explicitly indicates a first time value.

As an embodiment, the first sub-information implicitly indicates a first time value.

As an embodiment, the second sub information is transmitted through higher layer signaling.

As an embodiment, the second sub information is transmitted through physical layer signaling.

As an embodiment, the second sub information includes all or part of a MAC (Medium Access Control) CE (Control Element).

As an embodiment, the second sub information is all or part of a MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element).

As an embodiment, the second sub information includes all or part of a MAC (Medium Access Control) RAR (Random Access Response).

As an embodiment, the second sub information is used for a random access procedure.

As an embodiment, the second sub information is used to determine an index value of a timing advance.

As an embodiment, the second sub information is a Timing Advance Command (TAC).

As an embodiment, the second sub information is used to determine a transmission start time of the first signal.

As an embodiment, the second sub-information is used for a timing advance update procedure.

As an embodiment, the second sub-information is used for uplink transmission after completing a random access procedure.

As an embodiment, the second sub information is used to determine an uplink transmission timing of the first signal.

As an embodiment, the first sub information and the second sub information are used for a random access procedure.

As an embodiment, the first sub information and the second sub information are used for a timing advance update procedure.

As an embodiment, the first sub information and the second sub information are used for uplink transmission after a random access procedure is completed.

As an embodiment, the first sub information and the second sub information are sent to the terminal device by the base station.

As an embodiment, the first sub information and the second sub information are transmitted in the same signaling.

As an embodiment, the first sub information and the second sub information are sent in different signaling.

As an embodiment, the first sub information and the second sub information are transmitted simultaneously.

As an embodiment, the first sub information and the second sub information are not transmitted simultaneously.

As an embodiment, the first sub information and the second sub information are used together to determine the uplink transmission timing of the first signal.

As an embodiment, the first sub-message and the second sub-message include all or part of Msg2 (message 2) in a random access procedure.

As an embodiment, the first sub information and the second sub information are transmitted through a DL-SCH (Downlink Shared Channel).

As an embodiment, the first sub information and the second sub information are transmitted through a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the first sub information and the second sub information are Cell Specific.

As an embodiment, the first sub information and the second sub information are user equipment-specific (UE-specific).

As an embodiment, the first sub information and the second sub information are user equipment group-specific (UE group-specific).

As an embodiment, the first signal is transmitted by higher layer signaling.

As an embodiment, the first signal is transmitted by physical layer signaling.

As an embodiment, the first signal is transmitted on an Uplink Shared Channel (UL-SCH).

For one embodiment, the first signal includes at least one of { C-RNTI MAC CE, CCCH SDU }.

As an embodiment, the first signal is transmitted through a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the first signal is transmitted through a PUCCH (Physical Uplink Control Channel).

As an embodiment, the first Signal is transmitted through SRS (Sounding Reference Signal).

As an embodiment, the first Signal is transmitted through an UL DMRS (Uplink Demodulation Reference Signal).

As one embodiment, the first signal is used for a random access procedure.

As an embodiment, the first signal includes all or part of Msg3 (message 3) in the random access procedure.

As an embodiment, the first signal carries a retransmission of Msg3 (message 3).

As an example, the first signal carries an initial transmission of Msg3 (message 3).

As an embodiment, the first signal is used for an RRC (Radio Resource Control) connection establishment procedure.

As an embodiment, the first signal includes all or part of an IE (Information Element) in a Radio Resource Control (RRC) signaling.

As an embodiment, the first signal includes all or part of a Field (Field) in an IE (Information Element) in an RRC (Radio Resource Control) signaling.

For one embodiment, the first signal comprises an rrcconnectionresumerrequest message.

For one embodiment, the first signal comprises an RRCConnectionRequest message.

For one embodiment, the first signal comprises a RRCEarlyDataRequest message.

As an embodiment, the first transmitter transmits the first signal to a sender of the first information according to the timing advance.

As an embodiment, the first signal is an uplink transmission of the first communication node device after completion of a random access procedure.

As one embodiment, the first time value is a time granularity of the K.

As one embodiment, the first time value is a time unit of the K.

As one embodiment, K is an index value of the timing advance.

As an embodiment, K is an index value of a Timing Advance in a Timing Advance Command (TAC).

As one embodiment, the K first time values are timing advances.

As an embodiment, the K first time values are a total amount of timing advance.

As an embodiment, the K first time values are a total amount of time alignment.

As an embodiment, the K first time values are transmission start time instants of the first signal.

As an embodiment, a product of the first time value and the K is a transmission start time of the first signal.

As one embodiment, the product of the first time value and the K is a total amount of timing advance.

As an embodiment, when the first time value is not changed, the greater the distance between the first node and the sender of the first information, the greater the K.

As an embodiment, when the first time value is not changed, the smaller the distance between the first node and the sender of the first information, the smaller the K.

As an embodiment, the sender of the first information calculates the first sub information and the second sub information through a random access Preamble (Preamble) sent by the first node.

As an embodiment, the sender of the first information calculates the first sub information and the second sub information through Location (Location) information of the first node.

As an example, the unit of the first time value is seconds(s).

As one embodiment, the unit of the first time value is milliseconds (ms).

As one example, the unit of the first time value is microseconds (μ β).

As one embodiment, the unit of the first time value is several seconds(s).

As one embodiment, the unit of the first time value is several milliseconds (ms).

As one embodiment, the unit of the first time value is a number of microseconds (μ β).

As an embodiment, the unit of the first time value is a basic unit of time.

As one embodiment, the Basic time unit is a Basic time unit (T) of LTE (Long Term Evolution) _s = 1/(15000 × 2018) sec.

As an embodiment, the Basic time unit refers to a Basic time unit (Basic time unit) T of NR (New Radio, new air interface) _c ＝1/(Δf _max ·N _f ) Second, wherein, Δ f _max ＝480·10 ³ Hz，N _f ＝4096。

As one embodiment, the Basic time unit is a Basic time unit (Basic time unit) T of an existing wireless communication system _x 。

As one embodiment, the base time unit is a base time unit (Basic time unit) T of a future wireless communication system _y 。

As an example, said first time value G is equal to a basic time unit T _s 16 times higher than the original value.

As an example, said first time value G is equal to a basic time unit T _c Is 16 x 64/2 mu times, wherein, the value of mu is one of {0,1,2,3,4} which respectively corresponds to subcarrier intervals of {15khz,30khz,60khz,120khz,240khz }.

As an example, said first time value G is equal to a basic time unit T _x Is 16 × 64/2 μ times, wherein μ is an integer greater than or equal to zero, and x is a symbol.

As an example, said first time value G is equal to a basic time unit T _y Is 16 × 64/2 μ times, wherein μ is an integer greater than or equal to zero, and y is a sign.

As an example, the first time value is related to a Subcarrier spacing (SCS).

As an embodiment, the first time value is independent of subcarrier spacing.

As an embodiment, the first time value is known to the base station and the terminal device.

For one embodiment, the first time value is configurable.

As one embodiment, the first time value is determined by a system.

As an embodiment, the first time value is configured by the base station to the terminal device through a Radio Resource Control (RRC) message.

As an embodiment, the first time value is indicated by an SIB (System Information Block).

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in fig. 2. Fig. 2 illustrates a diagram of a network architecture 200 of a 5G NR (New Radio, new air interface), LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-Advanced) system. The 5GNR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access network) 202,5GC (5G Core network )/EPC (Evolved Packet Core) 210, hss (Home Subscriber Server)/UDM (Unified Data Management) 220, and internet services 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 5GS/EPS provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5GC/EPC210 via an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

As an embodiment, the UE201 corresponds to the first node in this application.

As an embodiment, the UE201 supports transmission in a non-terrestrial network (NTN).

As an embodiment, the UE201 supports transmission in a large delay-difference network.

As an embodiment, the UE201 supports transmissions of a Terrestrial Network (TN).

As an embodiment, the gNB203 corresponds to the second node in this application.

As one embodiment, the gNB203 supports transmissions over a non-terrestrial network (NTN).

As an embodiment, the gNB203 supports transmission in large latency difference networks.

As an embodiment, the gNB203 supports transmission of a Terrestrial Network (TN).

As an example, the gNB203 is a macro Cellular (Marco Cellular) base station.

As an embodiment, the gNB203 is a Micro Cell (Micro Cell) base station.

As an embodiment, the gNB203 is a Pico Cell (Pico Cell) base station.

As an embodiment, the gNB203 is a home base station (Femtocell).

As an embodiment, the gNB203 is a base station device supporting a large delay difference.

As an example, the gNB203 is a flight platform device.

As an embodiment, the gNB203 is a satellite device.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 for a first node (UE, satellite or aircraft in gNB or NTN) and a second node (satellite or aircraft in gNB, UE or NTN), or between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above the PHY301 and is responsible for the link between the first and second nodes and the two UEs through the PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets and provides handoff support between second nodes to the first node. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell between the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the Control plane 300 is responsible for obtaining Radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second node and the first node. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture in the user plane 350 for the first and second nodes is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first node may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

As an example, the wireless protocol architecture in fig. 3 is applicable to the first node in this application.

The radio protocol architecture of fig. 3 applies to the second node in this application as an example.

As an embodiment, the first information in this application is generated in the RRC306.

As an embodiment, the first information in this application is generated in the MAC302 or the MAC352.

As an embodiment, the first information in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the first sub-information in this application is generated in the RRC306.

As an embodiment, the first sub information in this application is generated in the MAC302 or the MAC352.

As an embodiment, the first sub information in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the second sub-information in this application is generated in the RRC306.

As an embodiment, the second sub information in this application is generated in the MAC302 or the MAC352.

As an embodiment, the second sub information in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the first signal in this application is generated in the RRC306.

As an embodiment, the first signal in this application is generated in the MAC302 or the MAC352.

For one embodiment, the first signal is generated from the PHY301 or the PHY351.

As an embodiment, the first signaling in this application is generated in the RRC306.

As an embodiment, the first signaling in this application is generated in the MAC302 or the MAC352.

As an embodiment, the first signaling in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the second signal in this application is generated in the RRC306.

As an embodiment, the second signal in this application is generated in the MAC302 or the MAC352.

As an embodiment, the second signal in the present application is generated in the PHY301 or the PHY351.

Example 4

Embodiment 4 shows a schematic diagram of a first node and a second node according to the application, as shown in fig. 4.

In the first node (450) includes a controller/processor 490, a data source/buffer 480, a receive processor 452, a transmitter/receiver 456 and a transmit processor 455, the transmitter/receiver 456 including an antenna 460. The data source/buffer 480 provides upper layer packets, which may include data or control information such as DL-SCH or UL-SCH or SL-SCH, to the controller/processor 490, and the controller/processor 490 provides packet header compression decompression, encryption and decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 and upper layer protocols for the user plane and the control plane. The transmit processor 455 implements various signal transmit processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer control signaling generation, among others. The receive processor 452 performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, depredialing, and physical layer control signaling extraction, among others. The transmitter 456 is configured to convert baseband signals provided from the transmit processor 455 into radio frequency signals and transmit the radio frequency signals via the antenna 460, and the receiver 456 is configured to convert radio frequency signals received via the antenna 460 into baseband signals and provide the baseband signals to the receive processor 452.

A controller/processor 440, a data source/buffer 430, a receive processor 412, a transmitter/receiver 416 and a transmit processor 415 may be included in the second node (410), the transmitter/receiver 416 including an antenna 420. The data source/buffer 430 provides upper layer packets to the controller/processor 440, and the controller/processor 440 provides packet header compression decompression, encryption decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer protocols for the user plane and the control plane. Data or control information, such as a DL-SCH or UL-SCH or SL-SCH, may be included in the upper layer packet. The transmit processor 415 performs various signal transmit processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer signaling (including synchronization and reference signal generation, etc.), among others. The receive processor 412 performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, depredialing, and physical layer signaling extraction, among others. The transmitter 416 is configured to convert the baseband signals provided by the transmit processor 415 into rf signals and transmit the rf signals via the antenna 420, and the receiver 416 is configured to convert the rf signals received by the antenna 420 into baseband signals and provide the baseband signals to the receive processor 412.

In the DL (Downlink), upper layer packets, such as the first information in the present application and higher layer information included in the first signaling, are provided to the controller/processor 440. Controller/processor 440 performs the functions of the L2 layer and above. In the DL, a controller/processor 440 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to a first node 450 based on various priority metrics. The controller/processor 440 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first node 450, such as the first information in this application and higher layer information included in the first signaling (if included) are all generated in the controller/processor 440. The transmit processor 415 performs various signal processing functions for the L1 layer (i.e., physical layer), including encoding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer control signaling generation, etc., where the generation of the physical layer signal for the first information and the first signaling is performed at the transmit processor 415, the generated modulation symbols are divided into parallel streams and each stream is mapped to a corresponding multi-carrier subcarrier and/or multi-carrier symbol, and then mapped to an antenna 420 via a transmitter 416 by the transmit processor 415 to be transmitted as a radio frequency signal. On the receive side, each receiver 456 receives a radio frequency signal through its respective antenna 460, and each receiver 456 recovers baseband information modulated onto a radio frequency carrier and provides the baseband information to a receive processor 452. The receive processor 452 implements various signal receive processing functions of the L1 layer. The signal reception processing functions include reception of physical layer signals corresponding to the first information and first signaling, etc. in this application, demodulation based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK)) through multicarrier symbols in a multicarrier symbol stream, followed by descrambling, decoding, deinterleaving to recover data or control transmitted by the second node 410 on a physical channel, and then provide the data and control signals to the controller/processor 490. The controller/processor 490 is responsible for the L2 layer and above, and the controller/processor 490 interprets the first information and, if included, the higher layer information included in the first signaling in the present application. The controller/processor can be associated with a memory 480 that stores program codes and data. Memory 480 may be referred to as a computer-readable medium.

In an Uplink (UL) transmission, a data source/buffer 480 is used to provide higher layer data to controller/processor 490. The first signal in this application is generated at controller/processor 490. The data source/buffer 480 represents the L2 layer and all protocol layers above the L2 layer. The controller/processor 490 implements L2 layer protocols for the user plane and the control plane by providing header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the second node 410. The controller/processor 490 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second node 410. The L2 layer signal of the first signal in this application is generated at controller/processor 490. The transmit processor 455 implements various signal transmit processing functions for the L1 layer (i.e., the physical layer), and the physical layer signals of the first signal and the second signal in this application are generated at the transmit processor 455. The signal transmission processing functions include coding and interleaving to facilitate Forward Error Correction (FEC) at the UE450 and modulation of the baseband signal based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK)), splitting the modulation symbols into parallel streams and mapping each stream to a respective multi-carrier subcarrier and/or multi-carrier symbol, which are then mapped by the transmit processor 455 to the antenna 460 via the transmitter 456 for transmission as a radio frequency signal. Receivers 416 receive radio frequency signals through their respective antennas 420, each receiver 416 recovers baseband information modulated onto a radio frequency carrier, and provides the baseband information to receive processor 412. Receive processor 412 performs various signal reception processing functions for the L1 layer (i.e., the physical layer) including receiving physical layer signals that process the first and second signals herein, including obtaining a stream of multicarrier symbols, then demodulating the multicarrier symbols in the stream of multicarrier symbols based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK)), then decoding and deinterleaving to recover the data and/or control signals originally transmitted by first node 450 over the physical channel. The data and/or control signals are then provided to a controller/processor 440. The L2 layer functions, including the interpretation of the information carried by the first signal in this application, are performed at the controller/processor 440. The controller/processor can be associated with a buffer 430 that stores program codes and data. The buffer 430 may be a computer-readable medium.

For one embodiment, the first node 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first node 450 apparatus comprising at least: a first receiver that receives first information; a first transmitter that transmits a first signal; wherein the first information comprises first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal.

For one embodiment, the first node 450 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving first information; transmitting a first signal; wherein the first information comprises first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal.

For one embodiment, the second node 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second node 410 apparatus comprises at least: a second transmitter that transmits the first information; a second receiver receiving the first signal; wherein the first information comprises first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal.

For one embodiment, the second node 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending first information; receiving a first signal; wherein the first information comprises first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal.

As an example, the first node 450 is a user equipment.

For one embodiment, the first node 450 is a ue supporting a large delay difference.

As an embodiment, the first node 450 is a user equipment supporting NTN.

As an example, the first node 450 is an aircraft device.

As an embodiment, the second node 410 is a base station equipment (gNB/eNB).

As an embodiment, the second node 410 is a base station device supporting large delay difference.

As an embodiment, the second node 410 is a base station device supporting NTN.

For one embodiment, the second node 410 is a satellite device.

For one embodiment, the second node 410 is a flying platform device.

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the first information herein.

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the first signaling.

For one embodiment, a transmitter 456 (including an antenna 460), a transmit processor 455, and a controller/processor 490 are used to transmit the first signal in this application.

For one embodiment, a transmitter 456 (including an antenna 460), a transmit processor 455, and a controller/processor 490 are used to transmit the second signal in this application.

For one embodiment, receiver 416 (including antenna 420), transmit processor 415, and controller/processor 440 are used to transmit the first signal in this application.

For one embodiment, receiver 416 (including antenna 420), transmit processor 415, and controller/processor 440 are used to transmit the second signal in this application.

For one embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415, and the controller/processor 440 are configured to transmit the first signaling in this application.

For one embodiment, transmitter 416 (including antenna 420), transmit processor 415, and controller/processor 440 are used to transmit the first information in this application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. In fig. 5, the second node N02 is a serving cell base station of the first node U01, and it is specifically illustrated that the sequence in this example does not limit the signal transmission sequence and the implementation sequence in this application.

For theSecond node N02In step S5201, the first signaling is transmitted, in step S5202, the second signal is received, in step S5203, the first information is transmitted, and in step S5204, the first signal is received.

For theFirst node U01In step S5101, the first signaling is received, in step S5102, the second signal is transmitted, in step S5103, the first information is received, and in step S5104, the first signal is transmitted.

In embodiment 5, the first information in the present application includes first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal. The first sub information comprises Q1 information bits, and the second sub information comprises Q2 information bits; said Q1 and said Q2 are both positive integers and the sum of said Q1 and said Q2 is fixed; the Q1 is related to a parameter of the second node N02. The first signaling is used to determine K1 candidate time values; the first time value is one of the K1 candidate time values; the first sub-information is used to determine the first time value from the K1 candidate time values. The second signal is used by a recipient of the second signal to determine the first sub-information and the second sub-information. The parameters of the two nodes N02 are used to determine whether the first sub-information is used to indicate the first time value. The first sub-information and the second sub-information are used to determine an adjustment value for a timing advance.

As one embodiment, the second signal is a baseband signal.

As one embodiment, the second signal is a wireless signal.

As an embodiment, the first sub information is configurable.

As an embodiment, the first sub-information includes all or part of a MAC (Medium Access Control) RAR (Random Access Response).

As an embodiment, the first sub information is used for uplink transmission after a random access procedure is completed.

As one embodiment, the first sub-information explicitly indicates a first time value.

As an embodiment, the second sub information includes a Timing Advance Command (TAC).

As an embodiment, the second sub information is used for a timing advance update process.

As an embodiment, the first signal is transmitted by higher layer signaling.

As an embodiment, the first signal is transmitted by physical layer signaling.

As one embodiment, the first signal is used for a random access procedure.

For one embodiment, the first signal comprises an RRCConnectionRequest message.

For one embodiment, the first signal comprises a RRCEarlyDataRequest message.

As an embodiment, the second signal carries MSG1 (message 1).

For one embodiment, the second signal is a Random Access Request (Random Access Request) message.

As an embodiment, the second signal is transmitted on a PRACH (Physical Random Access Channel).

As one embodiment, the second signal is a physical layer (L1) message.

As an embodiment, the second signal is a random access Preamble (Preamble) sequence.

As an embodiment, the second Signal is at least one of SRS (Sounding Reference Signal), DMRS (demodulation Reference Signal), CQI (Channel Quality Information), ACK (Acknowledgement), NACK (Negative Acknowledgement), or PUSCH (Physical Uplink Shared Channel).

For one embodiment, the second signal is selected by the first node U01.

As an example, the second signal is distributed to the first node U01 by the second node N02.

As an embodiment, when the first node U01 employs contention-based random access, the second signal is autonomously selected by the first node.

As an embodiment, when the first node U01 employs random access based on non-contention, the second signal is allocated to the first node by the second node.

As an embodiment, the receiver of the second signal determines the first sub-information and the second sub-information by measurements of the second signal.

As an embodiment, the first signaling is higher layer signaling.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling comprises all or part of a higher layer signaling.

As an embodiment, the first signaling comprises all or part of a physical layer signaling.

As an embodiment, the first signaling is broadcast.

As one embodiment, the first signaling is unicast.

As an embodiment, the first signaling is Cell Specific (Cell Specific).

As an embodiment, the first signaling is user equipment-specific (UE-specific).

As an embodiment, the first signaling includes all or part of a MAC (Medium Access Control) CE (Control Element).

As an embodiment, the first signaling includes all or part of a MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element).

As an embodiment, the first signaling includes all or part of a MAC (Medium Access Control) RAR (Random Access Response).

As an embodiment, the first signaling is transmitted over an air interface.

As an embodiment, the first signaling is transmitted through a Uu interface.

As an embodiment, the first signaling is transmitted over a wireless interface.

As one embodiment, the first time value is a time granularity of the K.

As one embodiment, the first time value is a time unit of the K.

As one embodiment, K is an index value of the timing advance.

As an embodiment, the K is an index value of a Timing Advance amount in a Timing Advance Command (TAC).

As one embodiment, the K first time values are timing advances.

As an embodiment, the K first time values are a total amount of timing advance.

As an embodiment, the K first time values are a total amount of time alignment.

As an embodiment, the product of the first time value and K is a total amount of timing advance.

As an embodiment, a sender of the first information calculates the first sub information and the second sub information through a random access Preamble (Preamble) sent by the first node.

As one embodiment, the unit of the first time value is seconds(s).

As one embodiment, the unit of the first time value is milliseconds (ms).

As one example, the unit of the first time value is microseconds (μ β).

As one embodiment, the unit of the first time value is several seconds(s).

As an embodiment, the unit of the first time value is a basic unit of time.

As one embodiment, the Basic time unit is a Basic time unit (Basic time unit) T of a future wireless communication system _y 。

As an example, said first time value G is equal to a basic time unit T _s 16 times higher than the target value.

As an example, said first time value G is equal to a basic time unit T _c Is 16 × 64/2 μ times, wherein the value of μ is one of {0,1,2,3,4} and corresponds to subcarrier spacing {15khz,30khz,60khz,120khz,240khz }, respectively.

As an example, said first time value G is equal to a basic time unit T _y Is 16 × 64/2 μ times, wherein μ is an integer greater than or equal to zero, and y is a symbol.

As an example, the first time value is related to a Subcarrier spacing (SCS).

As an embodiment, the first time value is independent of subcarrier spacing.

For one embodiment, the first time value is configurable.

As an embodiment, the first time value is determined by a system.

As an embodiment, the first time value is indicated by SIB (System Information Block).

Example 6

Embodiment 6 illustrates a schematic diagram of transmitting the first sub information and the second sub information through TAC (Timing Advance Command) MAC (Medium Access Control) CE (Control Element), according to an embodiment of the present application, as shown in fig. 6.

In embodiment 6, fig. 6 is a structure of a TAC MAC CE, as shown in fig. 6, the first sub-information is used to determine a first time value, the second sub-information is used to determine the K, and the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal.

As an embodiment, the first sub information and the second sub information are transmitted through higher layer signaling.

As an embodiment, the first sub information and the second sub information include all or part of a MAC (Medium Access Control) CE (Control Element).

As an embodiment, the first sub information and the second sub information include all or part of a MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element).

As an embodiment, the first sub information includes a part of a MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element).

As an embodiment, the second sub information includes a part of a MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element).

As an embodiment, the MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element) includes a TAG Id.

As one embodiment, the TAG Id is a Timing Advance Group Identity (Timing Advance Group Identity).

As one embodiment, the TAG Id includes 2 information bits.

As an embodiment, in an RRC (Radio Resource Control) connection state, when a Timing Advance amount changes, the first sub information and the second sub information are transmitted in a MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element).

As an embodiment, the first time value is part of a Timing Advance Command (TAC).

As an embodiment, the K is part of a Timing Advance Command (TAC).

As an embodiment, the first time value and the K are Timing Advance Commands (TAC).

As an embodiment, the first time value is all or part of the MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element).

As an embodiment, the K is all or part of the MAC (Medium Access Control) TAC (Timing Advance Command) CE (Control Element).

As an embodiment, the first sub-information is a temporal granularity of the K.

As an embodiment, the first sub information is an index value of the first time value G.

As an embodiment, there is a one-to-one mapping relationship between the first sub information and the first time value.

As an embodiment, the first sub information is configurable.

As an embodiment, the first sub information is sent through RRC (Radio Resource Control) signaling.

As an embodiment, the first sub-information is configured by a Radio Resource Control (RRC) message.

As an embodiment, the first sub Information is all or part of a SIB (System Information Block) message.

As one embodiment, K is a timing advance index value.

As an embodiment, the K is transmitted through the second sub information.

As an embodiment, the first sub information and the second sub information are sent to a terminal device by a base station.

As an embodiment, the first time value is known at the base station side and at the terminal device side.

For one embodiment, the first time value is configurable.

As one embodiment, the first time value is determined by a system.

As an example, the first time value is related to a Subcarrier spacing (SCS).

As an embodiment, the first time value is independent of subcarrier spacing.

As an embodiment, the unit of the first time value is a basic unit of time.

As one embodiment, the unit of the first time value is several seconds(s).

As an example, the unit of the first time value is seconds(s).

As one embodiment, the unit of the first time value is milliseconds (ms).

As one example, the unit of the first time value is microseconds (μ β).

As an embodiment, the first sub information and the second sub information are used to determine an adjustment value of a timing advance.

As one embodiment, the first sub information and the second sub information indicate an adjustment value of the timing advance.

As one embodiment, the adjustment value of the timing advance is a positive number.

As one embodiment, the adjustment value of the timing advance is a negative number.

As one embodiment, the adjustment value of the timing advance is zero.

Example 7

Embodiment 7 illustrates a schematic diagram of transmitting the first sub information and the second sub information through a MAC (Medium Access Control) RAR (Random Access Response) according to an embodiment of the present application, as shown in fig. 7.

In embodiment 7, fig. 7 is a structure of a MAC (Medium Access Control) RAR (Random Access Response), as shown in fig. 7, where the first sub-information is used to determine a first time value, the second sub-information is used to determine the K, and the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal.

As an embodiment, the first sub information and the second sub information include a part of a MAC (Medium Access Control) RAR (Random Access Response).

As an embodiment, the first sub information includes a part of a MAC (Medium Access Control) RAR (Random Access Response).

As an embodiment, the second sub information includes a part of a MAC (Medium Access Control) RAR (Random Access Response).

As an embodiment, the first sub-information and the second sub-information are part of a MAC RAR Payload.

As an embodiment, the first sub-information is part of a MAC RAR Payload.

As an embodiment, the second sub-information is part of a MAC RAR Payload.

As an embodiment, the first sub information and the second sub information are sent through a MAC RAR.

As an embodiment, in a random access phase, the first sub-information and the second sub-information are sent in the MAC RAR.

As an embodiment, the MAC (Medium Access Control) RAR (Random Access Response) includes a reserved bit field R, and the R is set to 0.

As an embodiment, the MAC (Medium Access Control) RAR (Random Access Response) includes a UL (Uplink) Grant field indicating resources for Uplink, and the UL Grant field includes 27 information bits.

As an embodiment, the MAC (Medium Access Control) RAR (Random Access Response) includes a Temporary (Temporary) C-RNTI (Cell-Radio Network Temporary Identifier) field, the C-RNTI field indicates a Temporary Identifier used for the MAC entity in the Random Access phase, and the Temporary C-RNTI field includes 16 information bits.

As an embodiment, the first time value is all or part of a Timing Advance Command (TAC).

As an embodiment, the K is all or part of a Timing Advance Command (TAC).

As an embodiment, the first time value and the K are all or part of a Timing Advance Command (TAC).

As an embodiment, the first sub information is the first time value.

As an embodiment, the second sub information is the K.

As an embodiment, the first sub-information is a temporal granularity of the K.

As an embodiment, the first sub information is configurable.

As one embodiment, K is a timing advance index value.

As an embodiment, the K is transmitted through the second sub information.

As an embodiment, the first sub information and the second sub information are transmitted through a MAC CE.

For one embodiment, the first time value is configurable.

As one embodiment, the first time value is determined by a system.

As an example, the first time value is related to a Subcarrier spacing (SCS).

As an embodiment, the first time value is independent of subcarrier spacing.

As an embodiment, the unit of the first time value is a basic unit of time.

As one embodiment, the unit of the first time value is several seconds(s).

As an example, the unit of the first time value is seconds(s).

As one embodiment, the unit of the first time value is milliseconds (ms).

As one example, the unit of the first time value is microseconds (μ β).

Example 8

Embodiment 8 illustrates a schematic diagram of the number of information bits occupied by the first sub information and the second sub information according to an embodiment of the present application, as shown in fig. 8.

In embodiment 8, as shown in fig. 8, the first information includes first sub information and second sub information; the first sub information includes Q1 information bits, and the second sub information includes Q2 information bits; said Q1 and said Q2 are both positive integers; the Q1 is related to a parameter of a sender of the first information.

As an embodiment, the first information includes the first sub information and the second sub information.

As an embodiment, the first information includes a sum information bit of the Q1 and the Q2.

As an embodiment, the Q1 and the Q2 are all or part of an RRC (Radio Resource Control) message.

As an embodiment, Q1 and Q2 are all or part of a MAC (Medium Access Control) message.

For one embodiment, the Q1 and the Q2 are each configurable.

As an example, the sum of Q1 and Q2 is fixed.

As an example, the larger the Q1, the smaller the Q2.

As an example, the smaller the Q1, the larger the Q2.

As an example, said Q1 and said Q2 are variable.

As an example, Q1 is fixed and Q2 is variable.

As an example, Q1 is variable and Q2 is fixed.

As an embodiment, the parameter of the sender of the first information comprises a height at which the sender of the first information is located.

As an embodiment, the height at which the sender of the first information is located refers to a distance between the first node and the sender of the first information.

As an example, the height at which the sender of the first information is located refers to an altitude of the sender of the first information.

As an embodiment, the height of the sender of the first information refers to a vertical distance between the sender of the first information and the ground.

As an embodiment, the larger the height of the sender of the first information is, the larger Q1 is, and the smaller Q2 is.

As an embodiment, the smaller the height at which the sender of the first information is located, the smaller Q1 is, and the larger Q2 is.

As an embodiment, the smaller the height at which the sender of the first information is located, the larger the Q1 is, and the smaller the Q2 is.

As an embodiment, the larger the height of the sender of the first information is, the smaller Q1 is, and the larger Q2 is.

As one embodiment, the parameter of the sender of the first information includes a type of the sender of the first information.

As an embodiment, the type of the sender of the first information is a non-terrestrial network base station.

The type of the sender of the first information is one of GEO (Geostationary Earth Orbit) satellite, MEO (Medium Earth Orbit) satellite, LEO (Low Earth Orbit) satellite, HEO (high elliptic Orbit) satellite, airborne Platform.

As an embodiment, the type of the sender of the first information is a terrestrial network base station.

As an embodiment, the ground network Base Station is one of a Cellular Base Station (Cellular Base Station), a Micro Cell Base Station (Micro Cell), a Pico Cell Base Station (Pico Cell), a home Base Station (Femtocell), an eNB, and a gNB.

As an embodiment, the types of the senders of the first information are different, and the allocation ratio of Q1 and Q2 is different.

Example 9

Embodiment 9 illustrates a schematic diagram of K1 candidate time values according to an embodiment of the present application, as shown in fig. 9. In embodiment 9, a second node transmits a first signaling to a first node; the first signaling is used to determine K1 candidate time values; the first time value is one of the K1 candidate time values; the first sub-information is used to determine the first time value from the K1 candidate time values.

As an embodiment, the first signaling is higher layer signaling.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling is broadcast.

As an embodiment, the first signaling is unicast.

As an embodiment, the first signaling is Cell Specific (Cell Specific).

As an embodiment, the first signaling is user equipment-specific (UE-specific).

As an embodiment, the first signaling is transmitted over an air interface.

As an embodiment, the first signaling is transmitted through a Uu interface.

As an embodiment, the first signaling is transmitted over a wireless interface.

As an embodiment, the second node is a base station;

as an embodiment, the first node is a user equipment;

as an embodiment, the K1 candidate time values are configured by RRC (Radio Resource Control) signaling.

As an embodiment, the K1 candidate time values are broadcast by a System Information Block (SIB).

As an embodiment, the K1 candidate time values are configured at the time of network planning.

As an embodiment, the first sub information is an index value of the first time value of the K1 candidate time values.

As an embodiment, different values of the first sub information indicate different values of the first time.

As an embodiment, K1 is equal to 1, the first sub information is default, and the default value of the first sub information implicitly indicates the first time value.

As an embodiment, K1 is equal to 2, the K1 candidate time values include a 1 st candidate time value and a 2 nd candidate time value, and the first sub information occupies 1 bit, where bit 0 represents the 1 st candidate time value and bit 1 represents the 2 nd candidate time value.

As an embodiment, the K1 is equal to 3, the K1 candidate time values include a 1 st candidate time value, a 2 nd candidate time value, and a 3rd candidate time value, and the first sub information occupies 2 bits, where bit 00 represents the 1 st candidate time value, bit 01 represents the 2 nd candidate time value, and bit 10 represents the 3rd candidate time value.

As an embodiment, K1 is equal to 4, the K1 candidate time values include a 1 st candidate time value, a 2 nd candidate time value, a 3rd candidate time value, and a 4 th candidate time value, and the first sub information occupies 2 bits, where bit 00 represents the 1 st candidate time value, bit 01 represents the 2 nd candidate time value, bit 10 represents the 3rd candidate time value, and bit 11 represents the 4 th candidate time value.

As an example, the K1 candidate time values include 64ts,128tc,256tc,512tc, and 1024Tc.

As an example, the K1 candidate time values include 16, 64, 128, 256, 512, and 1024.

Example 10

Embodiment 10 illustrates a schematic diagram in which a parameter of a sender of first information is used to determine whether the first sub-information is used to indicate the first time value according to an embodiment of the present application; as shown in fig. 10.

As an embodiment, the first sub-information is used to indicate the first time value when the height at which the sender of the first information is located is greater than a first threshold.

As an embodiment, when the height of the sender of the first information is less than a first threshold, the first sub-information is not used for indicating the first time value, and the first time value is fixed.

For one embodiment, the first threshold is configurable.

The type of the sender of the first information is one of GEO (Geostationary Earth Orbit) satellite, MEO (Medium Earth Orbit) satellite, LEO (Low Earth Orbit) satellite, HEO (high elliptic Orbit) satellite, and Airborne Platform.

As an embodiment, the terrestrial network Base Station is one of a Cellular Base Station (Cellular Base Station), a Micro Cell Base Station (Micro Cell), a Pico Cell Base Station (Pico Cell), a home Base Station (Femtocell), an eNB, and a gNB.

As an embodiment, the type of the second node is one of non-terrestrial communication base stations, and the first sub-information is used to indicate the first time value.

As an embodiment, the type of the second node is one of terrestrial communication base stations, the first sub-information is not used to indicate the first time value, and the first time value is fixed.

Example 11

Embodiment 11 illustrates a schematic diagram in which first sub information and second sub information are used to determine an adjustment value of a timing advance according to an embodiment of the present application; as shown in fig. 11.

As an embodiment, the timing advance is an advance for the user equipment to transmit an uplink signal.

As an embodiment, the first sub information and the second sub information indicate an adjustment value of the timing advance.

In one embodiment, the adjustment value of the timing advance is a value obtained by changing the timing advance.

As an embodiment, the first sub-information and the second information used for determining the adjustment value of the timing advance are sent through a MAC RAR.

As an embodiment, the first sub information used for determining the adjustment value of the timing advance is sent through a Radio Resource Control (RRC) message.

As an embodiment, the first sub information and the second information used for determining the adjustment value of the timing advance are transmitted through a TAC MAC CE.

As one embodiment, the adjustment value of the timing advance is zero.

As one embodiment, the adjustment value of the timing advance N _{TA_new} ＝N _{TA_old} +(T _A -31) × first time value, where N _{TA_old} Is the old timing advance, T _A Is a timing advance index value indicated by the second sub information received by the receiver.

As one embodiment, the adjustment value of the timing advance N _{TA_new} ＝N _{TA_old} +(T _A -31) · 16, wherein N _{TA_old} Is the old timing advance, T _A Is the K indicated by the second sub information received by the receiver.

As one embodiment, the adjustment value of the timing advance N _{TA_new} ＝N _{TA_old} +(T _A -31)·16·64/2 ^μ Wherein N is _{TA_old} Is oldTiming advance, T _A The K, mu indicated by the second sub-information received by the receiver is related to the subcarrier spacing, and the value range is {0,1,2,3,4}, which respectively correspond to the subcarrier spacing {15khz,30khz,60khz,120khz,240khz }.

As an embodiment, the adjustment value of the timing advance is the same as the number of bits occupied by the timing advance.

As an embodiment, the adjustment value of the timing advance is different from the number of bits occupied by the timing advance.

As an embodiment, after the first node establishes a connection with a sender of the first information, the sender of the first information sends first sub information and second sub information to the first node, and the first node adjusts a sending timing advance of the first node according to the first sub information and the second sub information.

Example 12

Embodiment 12 illustrates a schematic diagram in which a second signal is used to determine first sub information and second sub information according to an embodiment of the present application; as shown in fig. 12.

As an embodiment, the second signal carries MSG1 (message 1).

As one embodiment, the second signal is a physical layer (L1) message.

As an embodiment, the second signal is autonomously selected by a sender of the second signal.

As one embodiment, the second signal is assigned by a recipient of the second signal to a sender of the second signal.

As an embodiment, the receiver of the second signal determines the first sub-information and the second sub-information by measurements on the second signal.

Example 13

Embodiment 13 illustrates a block diagram of a processing apparatus for use in a first node according to an embodiment of the present application; as shown in fig. 13. In fig. 13, the processing means 1300 in the first node comprises a first receiver 1301, a first transmitter 1302.

A first receiver 1301 which receives first information;

a first transmitter 1302 that transmits a first signal;

in embodiment 13, the first information includes first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal.

For one embodiment, the first receiver 1301 receives a first signaling; the first signaling is used to determine K1 candidate time values; the first time value is one of the K1 candidate time values; the first sub-information is used to determine the first time value from the K1 candidate time values.

As an embodiment, the first sub information includes Q1 information bits, and the second sub information includes Q2 information bits; said Q1 and said Q2 are both positive integers and the sum of said Q1 and said Q2 is fixed; the Q1 is related to a parameter of a sender of the first information.

As an embodiment, a parameter of a sender of the first information is used to determine whether the first sub-information is used to indicate the first time value.

For one embodiment, the first transmitter 1302 transmits a second signal; the second signal is used by a recipient of the second signal to determine the first sub-information and the second sub-information.

As an embodiment, the number of bits occupied by the first sub information and the second sub information is respectively configurable.

For one embodiment, the first node 1300 is a user equipment.

For an embodiment, the first node 1300 is a ue supporting a large delay difference.

As an embodiment, the first node 1300 is a user equipment supporting NTN.

As an example, the first node 1300 is an aircraft device.

For one embodiment, the first receiver 1301 includes at least one of { antenna 460, receiver 456, receive processor 452, controller/processor 490, data source/buffer 480} in embodiment 4.

For one embodiment, the first transmitter 1302 includes at least one of the { antenna 460, transmitter 456, transmit processor 455, controller/processor 490, data source/buffer 480} embodiments of 4.

Example 14

Embodiment 14 illustrates a block diagram of a processing apparatus for use in a second node according to an embodiment of the present application; as shown in fig. 14. In fig. 14, the processing means 1400 in the second node comprises a second transmitter 1401 and a second receiver 1402.

A second transmitter 1401 for transmitting the first information;

a second receiver 1402 receiving the first signal;

in embodiment 14, the first information includes first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value is used in conjunction with the K to determine a transmission start time of the first signal.

As an example, the second transmitter 1401 transmits a first signaling; the first signaling is used to determine K1 candidate time values; the first time value is one of the K1 candidate time values; the first sub-information is used to determine the first time value from the K1 candidate time values.

For one embodiment, the second receiver 1402 receives a second signal; the second signal is used by the second node to determine the first sub-information and the second sub-information.

As an embodiment, a parameter of the second node is used to determine whether the first sub-information is used to indicate the first time value.

As an embodiment, the number of bits occupied by the first sub information and the second sub information is configurable respectively.

As an embodiment, the second node 1400 is a base station equipment (gNB/eNB).

As an embodiment, the second node 1400 is a base station device supporting large delay inequality.

As an embodiment, the second node 1400 is a base station device supporting NTN.

For one embodiment, the second node 1400 is a satellite device.

As an example, the second node 1400 is a flying platform device.

As an embodiment, the second transmitter 1401 includes at least one of { antenna 420, transmitter 416, transmission processor 415, controller/processor 440, data source/buffer 430} in embodiment 4.

For one embodiment, the second receiver 1402 includes at least one of { antenna 420, receiver 416, receive processor 412, controller/processor 440, data source/buffer 430} in embodiment 4.

Example 15

Embodiment 15 illustrates a schematic diagram of parameters used to determine K1 candidate time values according to one embodiment of the present application; as shown in fig. 15.

As an embodiment, said parameters used for determining K1 candidate time values comprise coverage area ranges.

As an embodiment, the coverage area range is a coverage area range of a Physical Cell (Physical Cell).

As an embodiment, the coverage area range is a coverage area range of a Virtual Cell (Virtual Cell).

As an embodiment, the coverage area range is a coverage area range of one beam (beam).

As an embodiment, the larger the coverage area, the larger the corresponding candidate time value.

As an embodiment, the smaller the coverage area, the smaller the corresponding candidate time value.

As an example, as shown in fig. 15, the candidate time value is related to a coverage area, and the coverage area of the area #1 is smaller than that of the area # 2; the coverage area of the region #1 is smaller, the transmission delay is smaller, the timing advance used for uplink transmission of the user equipment is smaller, and the corresponding first candidate time value is smaller; the coverage area of the region #2 is large, the transmission delay is large, the timing advance used for uplink transmission of the user equipment is large, the corresponding second candidate time value is large, and the first candidate time value is smaller than the second candidate time value.

As an embodiment, the first candidate time value is one of the K1 candidate time values in this application, and the second candidate time value is another one of the K1 candidate time values in this application.Example 16

Embodiment 16 illustrates a schematic diagram of parameters used to determine K1 candidate time values according to another embodiment of the present application; as shown in fig. 16.

As an embodiment, said parameter used for determining K1 candidate time values comprises a base station altitude.

As an embodiment, the larger the height of the base station is, the larger the corresponding candidate time value is.

As an embodiment, the smaller the height of the base station is, the smaller the corresponding candidate time value is.

As an embodiment, as shown in fig. 16, the candidate time value is related to a base station altitude, the base station altitude of the satellite 1 is relatively small, the base station altitude of the satellite 2 is relatively large, the coverage area of the satellite 1 is smaller than the coverage area of the satellite 2, the timing advance of the satellite 1 is smaller than the timing advance of the satellite 2, the third candidate time value corresponding to the satellite 1 is relatively small, the fourth candidate time value corresponding to the satellite 2 is relatively large, and the third candidate time value is smaller than the fourth candidate time value.

As an embodiment, said parameter used for determining K1 candidate time values comprises a base station type.

As an embodiment, the type of the Base Station includes one of a Cellular Base Station (Cellular Base Station), a Micro Cell Base Station (Micro Cell), a Pico Cell Base Station (Pico Cell), a home Base Station (Femtocell), an eNB, or a gNB among ground network Base stations.

As an example, the base station type includes one of GEO (Geostationary Earth Orbit) satellites, MEO (Medium Earth Orbit) satellites, LEO (Low Earth Orbit) satellites, HEO (high elliptic Orbit) satellites, or Airborne Platform (air Platform) among non-terrestrial network base stations.

As an example, the candidate time value is larger for the base station type at a longer vertical distance from the earth's surface.

For one embodiment, the candidate time value for the non-terrestrial network base station is greater than the candidate time value for the terrestrial network base station.

As an embodiment, as shown in fig. 16, the type of the satellite 1 is a LEO satellite, the type of the satellite 2 is a MEO satellite, the timing advance of the satellite 1 is smaller than the timing advance of the satellite 2, a third candidate time value corresponding to the satellite 1 is relatively smaller, a fourth candidate time value corresponding to the satellite 2 is relatively larger, and the third candidate time value is smaller than the fourth candidate time value.

As an embodiment, the third candidate time value is one of the K1 candidate time values in this application, and the fourth candidate time value is another one of the K1 candidate time values in this application.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, machine Type Communication (MTC) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, wireless Communication equipment such as low-cost panel computer. The base station or system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, a gNB (NR node B) NR node B, a TRP (Transmitter Receiver Point), and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node configured for wireless communication, comprising:

a first receiver receiving first information;

a first transmitter that transmits a first signal;

wherein the first information comprises first sub information and second sub information; the first sub-information is used to determine a first time value, the second sub-information is used to determine K, the K is a non-negative integer; the first time value and the K are used together for determining the transmission starting moment of the first signal; the first time value is related to a subcarrier spacing or the first time value is not related to a subcarrier spacing.

2. The first node of claim 1, wherein the first receiver receives first signaling; the first signaling is used to determine K1 candidate time values; the first time value is one of the K1 candidate time values; the first sub-information is used to determine the first time value from the K1 candidate time values.

3. The first node according to claim 1 or 2, characterized in that the first sub information comprises Q1 information bits and the second sub information comprises Q2 information bits; said Q1 and said Q2 are both positive integers and the sum of said Q1 and said Q2 is fixed; the Q1 is related to a parameter of a sender of the first information.

4. The first node according to any of claims 1-3, wherein a parameter of a sender of the first information is used for determining whether the first sub-information is used for indicating the first time value.

5. The first node according to any of claims 1-4, wherein the first sub-information and the second sub-information are used for determining an adjustment value for a timing advance.

6. The first node according to any of claims 1-5, wherein the first transmitter transmits a second signal; wherein the second signal is used by a recipient of the second signal to determine the first sub-information and the second sub-information.

7. The first node according to any of claims 1 to 6, wherein the number of bits occupied by the first sub information and the second sub information is configurable.

8. A second node configured for wireless communication, comprising:

a second transmitter that transmits the first information;

a second receiver receiving the first signal;

9. A method in a first node used for wireless communication, comprising:

receiving first information;

transmitting a first signal;

10. A method in a second node used for wireless communication, comprising:

sending first information;

receiving a first signal;