CN112911697A

CN112911697A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN112911697A
Application number: CN201911223263.8A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2021-06-04
Anticipated expiration: 2039-12-03
Also published as: CN112911697B

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The first node preferentially determines a first timing advance; subsequently receiving a first signal, the first signal being used to determine a first time window; and transmitting a second signal in a second time window; the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, the start time of the first time window being later than the start time of the second time window; a first sequence is used to generate the second signal, and the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence. According to the method and the device, the first sequence is still adopted to generate the second signal under the condition of adopting the first timing advance, so that the multiplexing of the preamble sequences of various terminals on the same time-frequency resource is realized, and the frequency spectrum efficiency is improved.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present invention relates to a transmission method and apparatus in a wireless communication system, and in particular, to a transmission method and apparatus in a Non-Terrestrial network (NTN) in wireless communication.

Background

In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of multiple application scenarios, a New air interface technology (NR, New Radio) (or 5G) is determined to be studied in 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 guilds, and standardization Work on NR starts after passing through WI (Work Item) of the New air interface technology (NR, New Radio) in 3GPP RAN #75 guilds.

In order to be able to adapt to various application scenarios and meet different requirements, the 3GPP RAN #75 time congress also passed a Non-Terrestrial Networks (NTN) research project under NR, which started in version R15. The decision to start the study of solutions in NTN networks was made on 3GPP RAN #79 full meeting, and then WI was initiated to standardize the related art in R16 or R17 release.

Disclosure of Invention

In the NTN network, when a User Equipment (UE) has a positioning capability and can estimate a transmission delay with a satellite, the UE can automatically Advance transmission when transmitting an uplink signal to the satellite, so as to determine and adjust a TA (Timing Advance) operation, thereby ensuring that a signal reaching the satellite can align with a Timing of the satellite.

However, the system side does not impose a requirement on whether the terminal performs the uplink timing advance operation by itself, and whether the terminal itself has the capability of determining the uplink timing advance by itself; further, under the coverage of a satellite, some terminals determine the uplink timing advance and adjust the uplink timing advance by themselves, and some terminals do not perform the above operation. The above-mentioned problem, especially when a PRACH (Physical Random Access Channel) is transmitted, may cause collision of the non-orthogonal PRACH.

One solution to the above problem is to allocate orthogonal preamble sequences to a terminal with its own uplink TA determining capability and a terminal without its own uplink TA determining capability, which, however, causes a waste of preamble sequence resources. In view of the above, the present application provides a solution. It should be noted that, in the above description of the problem, the NTN scenario is only an example of an application scenario of the solution provided in the present application; the method and the device are also applicable to the scenes such as the ground network, and achieve the technical effect similar to the NTN scene. Similarly, the present application is also applicable to scenarios where there is a network of UAVs (Unmanned Aerial vehicles), or internet of things devices, for example, to achieve technical effects in NTN-like scenarios. Furthermore, employing a unified solution for different scenarios (including but not limited to NTN scenarios and ground network scenarios) also helps to reduce hardware complexity and cost.

It should be noted that, without conflict, the embodiments and features in the embodiments in the first node of the present application may be applied to the second node and vice versa. Further, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.

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

determining a first timing advance, wherein the first timing advance is greater than 0;

receiving a first signal, the first signal being used to determine a first time window;

transmitting a second signal in a second time window;

wherein the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, the start time of the first time window being later than the start time of the second time window; a first sequence is used to generate the second signal, and the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence.

As an embodiment, the essence of the above method is: the second Signal is a Demodulation Reference Signal (DMRS) carried by MsgA, a transmission timing of the DMRS carried by MsgA is TA-adjusted, and the DMRS carried by MsgA is scrambled according to a downlink timing.

As an example, one benefit of the above approach is that: the first timing advance corresponds to a TA (timing advance) determined by the first node and required by the first node to a base station, and when the first node determines and adjusts the TA by itself, the generation of a Preamble is still determined according to downlink timing so as to ensure that the Preamble is multiplexed with the Preamble selected by other terminals with the capability of determining the TA by itself; the design ensures that the MsgA of a plurality of terminals with self-TA adjusting capability can be multiplexed.

According to one aspect of the application, the method described above is characterized by comprising:

transmitting a third signal;

wherein the first timing advance is used to determine the transmission timing of the third signal, and an air interface resource occupied by the third signal is used to indicate configuration information of the second signal; the third signal carries a preamble sequence.

As an embodiment, the essence of the above method is: and sending the Preamble associated with the MsgA, namely the third signal, according to the first timing quantity in advance so as to improve the multiplexing degree.

As an example, the above method has the benefits of: for the terminal with the capability of determining and automatically adjusting the TA, the base station can configure a shorter sequence for random access without considering the scene of the longer TA, thereby saving time-frequency resources and reducing the overhead of the long sequence.

As an example, a further benefit of the above method is that: the short sequence can be multiplexed with the long sequence, so that the PRACH of the terminal which self-adjusts the TA and the terminal which does not self-adjust the TA can be simultaneously received on the same time frequency resource, and the frequency spectrum efficiency is further increased.

receiving first information;

wherein the first information is used to determine location information of a sender of the first information, the location information of the sender of the first information and the location information of the first node at the time of transmitting the first signal being used together to determine the first timing advance.

As an example, the above method has the benefits of: in the present application, the location information of the second node and the location information of the first node are commonly used for determining the first timing advance, so as to improve the accuracy of the first timing advance.

receiving second information;

wherein a second sequence is used to generate the third signal, the second sequence being one of Q candidate sequences, the second information being used to determine the Q candidate sequences, Q being a positive integer greater than 1; there is one alternative sequence out of the Q alternative sequences that can be transmitted in the first time window, other than the second sequence.

As an example, the above method has the benefits of: the third signal is a preamble, and at least two different preambles can be multiplexed on a time-frequency resource occupied by the third signal.

As an example, another benefit of the above method is: the two different preambles correspond to different generated sequence lengths respectively to be applied to the PRACH with and without the compensated TA respectively, so that the spectrum efficiency is improved.

receiving third information;

wherein the third information is used to determine from the first time window and the second time window that the second signal was transmitted in the second time window.

As an example, the above method has the benefits of: this third information is used to Enable (Enable) and Disable (Disable) the self-determining and adjusting operation of the TA as proposed herein to facilitate configuration and coordination on the entire system side.

According to one aspect of the present application, the method described above is characterized in that the second signal comprises the first timing advance; the first node transmits the second signal in the second time window when the second signal includes the first timing advance.

As an example, the above method has the benefits of: the first node explicitly informs the second node in the application through the second signal, and a Preamble (third signal) and a MsgA (second signal) are adjusted and sent according to a TA determined by the first node; therefore, the second node can know the capability of the first node conveniently, and resources of PRACH and MsgA can be configured flexibly and reasonably.

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

receiving a target signal;

wherein the target signal is used to determine the first timing advance.

As an embodiment, the essence of the above method is: the target signal is a wireless signal used by the first node for positioning.

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

transmitting a first signal, the first signal being used to determine a first time window;

receiving a second signal in a second time window;

wherein a sender of the second signal determines a first timing advance, the first timing advance being greater than 0; the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, the start time of the first time window being later than the start time of the second time window; a first sequence is used to generate the second signal, and the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence.

receiving a third signal;

sending first information;

wherein the first information is used to determine location information of the second node, the location information of the second node and location information of a sender of the second signal at the time of transmitting the first signal being used together to determine the first timing advance.

sending the second information;

sending third information;

According to one aspect of the present application, the method described above is characterized in that the second signal comprises the first timing advance; a transmitter of the second signal transmits the second signal in the second time window when the second signal includes the first timing advance.

transmitting a target signal;

wherein the target signal is used by a sender of the second signal to determine the first timing advance.

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

the first receiver is used for determining a first timing advance, and the first timing advance is greater than 0;

a second receiver receiving a first signal, the first signal being used to determine a first time window;

a first transmitter to transmit a second signal in a second time window;

The application discloses a second node used for wireless communication, characterized by comprising:

a third transmitter to transmit a first signal, the first signal being used to determine a first time window;

a third receiver that receives a second signal in a second time window;

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

the first timing advance corresponds to a TA required by the first node to the base station, and when the first node determines and adjusts the TA by itself, generation of the Preamble and the MsgA is still determined according to downlink timing so as to ensure multiplexing with a Preamble selected by other terminals having the capability of determining the TA by itself; the design ensures that the MsgA of a plurality of terminals with self-TA adjusting capability can be multiplexed;

for a terminal with the capability of determining and self-adjusting TA, the base station may configure a shorter sequence for random access without considering the scenario of a longer TA, saving time and frequency resources and reducing the overhead of a long sequence; meanwhile, the short sequence can be multiplexed with the long sequence, so that the PRACH of the terminal which self-adjusts the TA and the terminal which does not self-adjust the TA are simultaneously received on the same time frequency resource, and the spectrum efficiency is further increased;

the third signal is a preamble, and at least two different preambles can be multiplexed on a time-frequency resource occupied by the third signal, where the two different preambles correspond to different generation sequence lengths, so as to be applied to the PRACH in which the TA is compensated and the PRACH in which the TA is not compensated, respectively, thereby improving the spectrum efficiency.

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 illustrates a process flow diagram of a first node 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 communication device and a second communication device according to an embodiment of the present application;

FIG. 5 shows a flow diagram of a second signal according to an embodiment of the present application;

FIG. 6 shows a schematic diagram of a first time window and a second time window according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of a third signal multiplexed with other signals according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of a third signal multiplexed with other signals according to another embodiment of the present application;

FIG. 9 shows a block diagram of a structure used in a first node according to an embodiment of the present application;

fig. 10 shows a block diagram of a structure used in a second node according to an 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 of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application determines a first timing advance in step 101, where the first timing advance is greater than 0; receiving a first signal in step 102, the first signal being used to determine a first time window; in step 103 a second signal is transmitted in a second time window.

In embodiment 1, the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, where the start time of the first time window is later than the start time of the second time window; a first sequence is used to generate the second signal, and the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence.

As one embodiment, the unit of the first timing advance is milliseconds.

As one example, the first timing advance is equal to T3 milliseconds.

As an embodiment, the first timing advance is equal to the duration of 1 time slot in the time domain.

As an embodiment, the first timing advance is equal to a duration of K1 consecutive slots in a time domain, the K1 being a positive integer greater than 1.

As an embodiment, the first timing advance is equal to a duration of 1 multicarrier symbol in a time domain.

As an embodiment, the first timing advance is equal to a duration of K2 consecutive multi-carriers in a time domain, where K2 is a positive integer greater than 1.

As one embodiment, the first Signal includes a PSS (Primary Synchronization Signal).

As one embodiment, the first Signal includes SSS (Secondary Synchronization Signal).

As one embodiment, the first signal includes a synchronization signal.

For one embodiment, the first signal includes an SSB (SS/PBCH Block, synchronization signal/physical broadcast signal Block).

As an embodiment, the first signal includes an SIB (System Information Block).

For one embodiment, the first signal comprises a system broadcast message.

As one embodiment, the first signal is used to determine synchronization timing.

As one embodiment, the first signal is used to determine downlink timing.

As an example, the first signal is used to determine a System SFN (System Frame Number).

As an example, the above phrase means that the position of the first time window in the time domain includes: the first time window is determined according to the SFN determined by the downlink timing.

As an example, the above phrase means that the position of the first time window in the time domain includes: the first time window is a time domain location determined according to a receive timing of the first node.

As an embodiment, the first time window is one time slot.

As an embodiment, the first time window is one multicarrier symbol in one time slot.

As an embodiment, the first time window is a plurality of multicarrier symbols in one time slot.

As an embodiment, the second time window is a time slot.

As an embodiment, the second time window is one multicarrier symbol in one time slot.

As an embodiment, the second time window is a plurality of multicarrier symbols in one time slot.

As an example, the above sentence wherein the first signal is used to determine the meaning of the first time window comprises: the first signal is used to indicate a position of the first time window in the time domain.

As an example, the above sentence wherein the first signal is used to determine the meaning of the first time window comprises: and the first node determines downlink timing according to the first signal and determines the time slot occupied by the first time window according to the downlink timing.

As a sub-embodiment of this embodiment, the determining the downlink timing comprises determining a downlink SFN.

As a sub-embodiment of this embodiment, the determining the downlink timing includes determining a downlink slot boundary.

As a sub-embodiment of this embodiment, the determining the downlink timing includes determining a downlink OFDM symbol boundary.

As an example, the above sentence wherein the first signal is used to determine the meaning of the first time window comprises: the first signal is used to determine a synchronization timing of the first time window.

As a sub-embodiment of this embodiment, the synchronization timing of the first time window comprises a start time of the first time window and an end time of the first time window.

As a sub-embodiment of this embodiment, the synchronization timing of the first time window includes a start time of each slot in the first time window and an end time of each slot in the first time window.

As a sub-embodiment of this embodiment, the synchronization timing of the first time window comprises a start time of each multicarrier symbol in the first time window and an end time of each multicarrier symbol in the first time window.

As an example, the start time of the first time window is equal to T1 ms, the first timing advance is equal to T3 ms, the start time of the second time window is equal to T2 ms, and T2 is equal to the difference between T1 minus T3.

As an embodiment, the first timing advance is equal to a length of a time interval between a start time of the first time window and a start time of the second time window.

As an embodiment, the first timing advance is equal to a sum of TA milliseconds and TB milliseconds, the TA milliseconds being equal to a duration of a positive integer number of timeslots, the TB milliseconds being less than a duration of one timeslot, the TA milliseconds being equal to a length of a time interval between a start time of the first time window and a start time of the second time window.

For one embodiment, the first time window is obtained based on a reception timing of the first node.

As one embodiment, the second signal includes a DMRS.

As an embodiment, the second signal is used for demodulation of PUSCH (Physical Uplink Shared Channel).

As an embodiment, the second signal is used for demodulation of MsgA.

As an embodiment, the second signal is used for two-step random access.

As an embodiment, the second signal is used for 2-Step RACH (Random Access Channel).

As one embodiment, the first sequence is a pseudo-random sequence.

As an example, the first sequence is generated from a 31 long Gold sequence.

As an example, the meaning of the sentence above that the first sequence is used to generate the second signal includes: the first sequence is used to generate the second signal.

As a sub-embodiment of this embodiment, for the above-described embodiment, the Transform Precoding is unused (disabled).

As an example, the meaning of the sentence above that the first sequence is used to generate the second signal includes: the first Sequence is used to determine a set of sequences (Sequence Group) that generate the second signal.

As a sub-embodiment of this embodiment, for the above-described embodiment, change precoding is used (enabled).

As a sub-embodiment of this embodiment, Group Hopping (Group Hopping) is employed for the above-described embodiment.

As a sub-embodiment of this embodiment, the sequence generating the second signal is a Zadoff-chu sequence.

As an example, the meaning of the sentence above that the first sequence is used to generate the second signal includes: the first Sequence is used to determine a Base Sequence (Base Sequence) that generates the second signal.

As a sub-embodiment of this embodiment, for the above-described embodiment, a varying precoding is used.

As a sub-embodiment of this embodiment, Sequence Hopping (Sequence Hopping) is employed for the above-described embodiment.

As an embodiment, the meaning that the position of the first time window in the time domain of the above sentence is used for determining the initial value of the generation register of the first sequence includes: the first time window occupies a first time Slot, and a Slot Number (Slot Number) determined by the first time Slot according to the downlink timing is used for determining an initial value of a generation register of the first sequence.

As an embodiment, the meaning that the position of the first time window in the time domain of the above sentence is used for determining the initial value of the generation register of the first sequence includes: the first time window occupies a first multicarrier Symbol in a first time slot, and a multicarrier Symbol Number (Symbol Number) in the first time slot, which is determined by the first multicarrier Symbol according to the downlink timing, is used to determine an initial value of a generation register of the first sequence.

As an embodiment, the multicarrier symbol in this application is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As an embodiment, the multicarrier symbol in this application is an SC-FDMA (Single-Carrier Frequency Division Multiple Access) symbol.

As an example, the multicarrier symbol in this application is an FBMC (Filter Bank Multi Carrier) symbol.

As an embodiment, the multicarrier symbol in this application is an OFDM symbol including a CP (Cyclic Prefix).

As an example, the multi-carrier symbol in this application is a DFT-s-OFDM (Discrete Fourier Transform spread Orthogonal Frequency Division Multiplexing) symbol including a CP.

As an embodiment, the duration of the first time window in the time domain is the same as the duration of the second time window in the time domain.

As an embodiment, the first time window and the second time window both occupy one time slot in the time domain.

As an embodiment, the first time window and the second time window occupy the same number of multicarrier symbols.

As one embodiment, the second signal includes an identification of the first node.

As a sub-embodiment of this embodiment, the identifier of the first node includes a C-RNTI (Cell-radio network temporary identifier).

As a sub-embodiment of this embodiment, the identifier of the first node includes RA-RNTI (Random Access-radio network temporary identifier).

As a sub-embodiment of this embodiment, a System Architecture Evolution-Temporary Mobile Subscriber Identity (sms-imsi) of the first node is used to generate the Identity of the first node.

As a sub-embodiment of this embodiment, said first node determines a random number as said identity of said first node.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Fig. 2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, EPCs (Evolved Packet cores)/5G-CNs (5G-Core networks) 210, HSS (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 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 an access point for the UE201 to the EPC/5G-CN 210. 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 connects to the EPC/5G-CN 210 through the S1/NG interface. The EPC/5G-CN 210 includes MME (Mobility Management Entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 211, other MMEs/AMF/UPF 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 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 gNB203 corresponds to the second node in this application.

As an embodiment, the air interface between the UE201 and the gNB203 is a Uu interface.

As an embodiment, the radio link between the UE201 and the gNB203 is a cellular link.

As an example, the wireless Link between the gNB203 and the ground station is a Feeder Link.

As an embodiment, the first node in this application is a terminal within the coverage of the gNB 203.

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

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

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

As an embodiment, the gNB203 supports transmission in a large delay network.

As an embodiment, the first node has GPS (Global Positioning System) capability.

As an example, the first node has GNSS (Global Navigation Satellite System) capability.

As an embodiment, the first node has BDS (BeiDou Navigation Satellite System) capability.

As an example, the first node has GALILEO (GALILEO Satellite Navigation System) capability.

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 between a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X) 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 PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device through PHY 301. 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 communication node device. 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 communication node devices to the first communication node device. 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 various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) 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 communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being 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 communication node device 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.

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

As an embodiment, the PDCP304 of the second communication node device is used to generate a schedule for the first communication node device.

As an embodiment, the PDCP354 of the second communication node device is used to generate a schedule for the first communication node device.

For one embodiment, the first signal is generated from the PHY301 or the PHY 351.

For one embodiment, the first signal is generated at the MAC352 or the MAC 302.

As an embodiment, the first signal is generated at the RRC 306.

For one embodiment, the second signal is generated from the PHY301 or the PHY 351.

For one embodiment, the second signal is generated at the MAC352 or the MAC 302.

For one embodiment, the third signal is generated from the PHY301 or the PHY 351.

For one embodiment, the first information is generated in the MAC352 or the MAC 302.

As an embodiment, the first information is generated at the RRC 306.

For one embodiment, the second information is generated in the MAC352 or the MAC 302.

As an embodiment, the second information is generated in the RRC 306.

For one embodiment, the third information is generated in the MAC352 or the MAC 302.

As an embodiment, the third information is generated in the RRC 306.

For one embodiment, the target signal is transmitted at the PHY301, or the PHY 351.

For one embodiment, the target signal is generated from the PHY301 or the PHY 351.

As an embodiment, it is SMLC (Serving Mobile Location center) that triggers the target signal transmission.

As an embodiment, triggering the target signal transmission is E-SMLC.

As one embodiment, the target signal is triggered to be sent by SLP (SUPL Location Platform); wherein SUPL is Secure User Plane Location.

As an embodiment, it is LMU (Location Measurement Unit) that triggers the target signal to be sent.

As an embodiment, the operation triggering the target signal transmission comes from a core network.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

The first communications device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

The second communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multiple antenna receive processor 472, a multiple antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In transmissions from the second communications device 410 to the first communications device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communications device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets, and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal constellation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate the physical channels carrying the time-domain multicarrier symbol streams. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

In a transmission from the second communications apparatus 410 to the first communications apparatus 450, each receiver 454 receives a signal through its respective antenna 452 at the first communications apparatus 450. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. Receive processor 456 converts the baseband multicarrier symbol stream after the receive analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signals and the reference signals to be used for channel estimation are demultiplexed by the receive processor 456, and the data signals are subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered at a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communications device 410 on the physical channel. The upper layer data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the functionality of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In transmissions from the second communications device 410 to the second communications device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In a transmission from the first communications device 450 to the second communications device 410, a data source 467 is used at the first communications device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the send function at the second communications apparatus 410 described in the transmission from the second communications apparatus 410 to the first communications apparatus 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to said second communications device 410. A transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding by a multi-antenna transmit processor 457 including codebook-based precoding and non-codebook based precoding, and beamforming, and the transmit processor 468 then modulates the resulting spatial streams into multi-carrier/single-carrier symbol streams, which are provided to different antennas 452 via a transmitter 454 after analog precoding/beamforming in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides the radio frequency symbol stream to the antenna 452.

In a transmission from the first communication device 450 to the second communication device 410, the functionality at the second communication device 410 is similar to the receiving functionality at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multiple antenna receive processor 472 collectively implement the functionality of the L1 layer. Controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In transmission from the first communications device 450 to the second communications device 410, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer data packets from the controller/processor 475 may be provided to a core network.

As an embodiment, the first communication device 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 communication device 450 apparatus at least: determining a first timing advance, wherein the first timing advance is greater than 0; receiving a first signal, the first signal being used to determine a first time window; and transmitting a second signal in a second time window; the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, the start time of the first time window being later than the start time of the second time window; a first sequence is used to generate the second signal, and the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: determining a first timing advance, wherein the first timing advance is greater than 0; receiving a first signal, the first signal being used to determine a first time window; and transmitting a second signal in a second time window; the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, the start time of the first time window being later than the start time of the second time window; a first sequence is used to generate the second signal, and the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence.

As an embodiment, the second communication device 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 communication device 410 means at least: transmitting a first signal, the first signal being used to determine a first time window; and receiving a second signal in a second time window; a sender of the second signal determines a first timing advance, wherein the first timing advance is greater than 0; the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, the start time of the first time window being later than the start time of the second time window; a first sequence is used to generate the second signal, and the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: transmitting a first signal, the first signal being used to determine a first time window; and receiving a second signal in a second time window; a sender of the second signal determines a first timing advance, wherein the first timing advance is greater than 0; the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, the start time of the first time window being later than the start time of the second time window; a first sequence is used to generate the second signal, and the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence.

As an embodiment, the first communication device 450 corresponds to a first node in the present application.

As an embodiment, the second communication device 410 corresponds to a second node in the present application.

For one embodiment, the first communication device 450 is a UE.

For one embodiment, the first communication device 450 is a ground terminal.

For one embodiment, the first communication device 450 is a surface device.

For one embodiment, the first communication device 450 is a near-earth terminal.

For one embodiment, the first communication device 450 is an aircraft.

As an example, the first communication device 450 is a surface vehicle.

For one embodiment, the second communication device 410 is a base station.

For one embodiment, the second communication device 410 is a non-terrestrial base station.

As an example, the second communication device 410 is a GEO (Geostationary Earth orbit) satellite.

As an example, the second communication device 410 is a MEO (Medium Earth orbit) satellite.

As an example, the second communication device 410 is a LEO (Low Earth Orbit) satellite.

As an example, the second communication device 410 is a HEO (high elliptic orbit) satellite.

As an example, the second communication device 410 is an Airborne Platform.

For one embodiment, at least one of the receiver 454, the multiple antenna receive processor 458, the receive processor 456, and the controller/processor 459 is configured to determine a first timing advance, the first timing advance being greater than 0.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive a first signal configured to determine a first time window; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send a first signal that is used to determine a first time window.

As one implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 are configured to transmit a second signal in a second time window; at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 are configured to receive a second signal in a second time window.

As one implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 are used to send a third signal; at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 are configured to receive a third signal.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive first information; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send the first information.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive second information; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send second information.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive third information; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send third information.

Example 5

Embodiment 5 illustrates a flow chart of a second signal, as shown in fig. 5. In FIG. 5, the first node U1 communicates with the second node N2 via a wireless link; wherein the step in block F0 is optional.

For theFirst node U1Receiving a target signal in step S10; determining a first timing advance in step S11; receiving a first signal in step S11; receiving the first information in step S13; receiving second information in step S14; receiving third information in step S15; transmitting a third signal in step S16; in step S17, a second signal is transmitted in a second time window.

For theSecond node N2Transmitting a target signal in step S20; transmitting a first signal in step S21; transmitting the first information in step S22; transmitting the second information in step S23; transmitting third information in step S24; receiving a third signal in step S25; in step S26, a second signal is received in a second time window.

In embodiment 5, the first timing advance is greater than 0; the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, the start time of the first time window being later than the start time of the second time window; a first sequence is used to generate the second signal, the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence; the first timing advance is used for determining the sending timing of the third signal, and an air interface resource occupied by the third signal is used for indicating the configuration information of the second signal; the third signal carries a preamble sequence; the first information is used to determine position information of the second node N2, the position information of the second node N2 and the position information of the first node U1 at the time of transmitting the first signal being used together to determine the first timing advance; a second sequence is used for generating the third signal, the second sequence is one of Q alternative sequences, the second information is used for determining the Q alternative sequences, and Q is a positive integer greater than 1; there is one alternative sequence out of the Q alternative sequences that can be transmitted in the first time window, other than the second sequence; the third information is used to determine from the first time window and the second time window that the second signal was transmitted in the second time window; the target signal is used to determine the first timing advance.

As an embodiment, the configuration information of the second signal includes a time domain resource occupied by the second signal.

As an embodiment, the configuration information of the second signal includes frequency domain resources occupied by the second signal.

As an embodiment, the configuration information of the second signal includes code domain resources occupied by the second signal.

As an embodiment, the configuration information of the second signal includes a time-frequency position of an REs (Resource Elements, Resource granule) occupied by the second signal.

As an embodiment, the configuration information of the second signal includes a Modulation and Coding Status (MCS) adopted by the first signal.

As an embodiment, the third signal is a Preamble.

As an embodiment, the second signal and the third signal together constitute MsgA.

As an embodiment, the air interface resource occupied by the third signal includes a time domain resource occupied by the third signal.

As an embodiment, the air interface resource occupied by the third signal includes a frequency domain resource occupied by the third signal.

As an embodiment, the air interface resource occupied by the third signal includes a time-frequency resource occupied by the third signal.

As an embodiment, the air interface resource occupied by the third signal includes a code domain resource occupied by the third signal.

As an embodiment, the air interface resource occupied by the third signal includes a space domain resource occupied by the third signal.

As an embodiment, the position information of the second node N2 includes track information (Orbit) of the second node N2.

For one embodiment, the location information of the second node N2 includes Calendar information (Calendar) of the second node N2.

For one embodiment, the location information of the second node N2 includes Ephemeris information (Ephemeris) of the second node N2.

As an embodiment, the position information of the second node N2 includes running speed and direction information of the second node N2.

As an embodiment, the location information of the second node N2 includes spatial location information of the second node N2 when receiving the first signal.

As an example, the second node N2 is a satellite.

For one embodiment, the second node N2 is a base station for non-terrestrial communications.

As an embodiment, the location information of the first node U1 when transmitting the first signal includes: the longitude and latitude at which the first node U1 was transmitting the first signal.

As an embodiment, the location information of the first node U1 when transmitting the first signal includes: the first node U1 is the distance from the second node N2's projected point on the ground surface when sending the first signal.

As an embodiment, the location information of the first node U1 when transmitting the first signal includes: the first node U1 is a distance from the second node N2 when sending the first signal.

As an embodiment, the Q candidate sequences include the second sequence and a third sequence, the third sequence being capable of being transmitted in the first time window.

As a sub-embodiment of this embodiment, the second sequence belongs to a first sequence group, the third sequence belongs to a second sequence group, the first sequence group is assigned to the first class of terminals, and the second sequence group is assigned to the second class of terminals.

As an additional embodiment of this sub-embodiment, the first class of terminals are terminals with positioning capabilities.

As an additional embodiment of this sub-embodiment, the terminals of the second type are terminals without positioning capability.

As an embodiment, the fact that the sentence has one alternative sequence out of the second sequence in the Q alternative sequences that can be sent in the first time window includes: there is a third sequence of the Q candidate sequences that is different from the second sequence and that is associated to a third time window that is different from the first time window.

As an embodiment, the third information relates to capabilities of the first node U1.

As a sub-embodiment of this embodiment, the first node U1 is provided with location capability and the third information is enabled.

As a sub-embodiment of this embodiment, the first node U1 has no location capability and the third information is not enabled.

As an embodiment, the third information is transmitted through RRC signaling.

For one embodiment, the third information is used to indicate that the first node U1 is capable of sending the second signal in the second time window.

As one embodiment, the second signal includes the first timing advance; the first node U1 transmits the second signal in the second time window when the second signal includes the first timing advance.

As a sub-embodiment of this embodiment, the second information included in the second information is used to inform the second node N2 that the first node U1 transmits the second signal in the second time window.

As a sub-embodiment of this embodiment, the second information included in the second information is used to instruct the first node U1 to transmit the second signal according to the compensated uplink timing.

As one embodiment, the target signal is a GPS signal.

As an embodiment, the target signal is a positioning signal from a beidou satellite navigation system.

As an embodiment, the target signal is a positioning signal from a galileo satellite navigation system.

As one embodiment, the first information and the target signal are used together to determine the first timing advance.

For one embodiment, the first information includes an altitude at which the second node N2 is located.

As an embodiment, the first information includes a type corresponding to the second node N2.

As an auxiliary embodiment of the sub-embodiment, the type corresponding to the second node N2 is one of a GEO satellite, a MEO satellite, a LEO satellite, a HEO satellite, and an Airborne Platform.

Example 6

Example 6 illustrates a schematic diagram of a first time window and a second time window, as shown in fig. 6. In fig. 6, the first time window is a time window occupied by the second signal determined according to the downlink timing, and the second time window is a time window occupied by the second signal after the first node is adjusted according to the first timing advance. T4 in the figure represents the transmission delay from the second node N2 to the first node U1; the unit of T4 is milliseconds. The first time window and the second time window shown in the figure are time slots; the dashed box in the figure corresponds to the time domain position actually occupied by the second signal.

As an example, a square box represents a time slot, and the numbers in the square box represent the number of the time slot, assuming that the first signal is transmitted in time slot #0 and the second node receives the second signal in time slot # 9.

As an example, the first timing advance is equal to 2 times T4.

As an embodiment, as shown in the figure, the second signal is transmitted in the second time window, and the initial value of the generation register of the first sequence is determined according to the position of the time slot #9 in the time domain, that is, the initial value of the generation register of the first sequence is determined according to the position of the first time window in the time domain.

Example 7

Embodiment 7 illustrates a schematic diagram of multiplexing a third signal with other signals according to the present application; as shown in fig. 7. In fig. 7, in the present application, a first node sends a third signal in a second time window, and another third node sends a fourth signal in the third time window, where the third signal and the fourth signal are both preamble sequences; the dashed boxes in the figure correspond to the time domain positions actually occupied by the third signal and the fourth signal.

For one embodiment, the first node and the third node are both served by the first node.

As an embodiment, the third node has a positioning function, and the third node determines its own TA to the second node by itself, and sends a fourth signal in a third time window.

As a sub-embodiment of this embodiment, the start time of the first time window and the start time of the third inter-window are equal to a second timing advance for the third node.

As a sub-embodiment of this embodiment, the transmission delay from the second node to the third node is equal to T5 ms, and the second timing advance is equal to 2 times T5 ms.

As an embodiment, a third sequence is used to generate a fourth signal, the third sequence and the second sequence being orthogonal.

As an embodiment, a third sequence is used to generate a fourth signal, and the Q candidate sequences in this application include the third sequence.

Example 8

Embodiment 8 illustrates a schematic diagram of multiplexing another third signal with other signals according to the present application; as shown in fig. 8. In fig. 8, in the present application, a first node transmits a third signal in a second time window, and a fourth node transmits a fifth signal in a fourth time window, where the third signal and the fifth signal are both preamble sequences; the dashed boxes in the figure correspond to the time domain positions actually occupied by the third signal and the fifth signal. The first signal on slot 0 in the figure may be associated with PRACH resources on both slot 5 and slot 10. The first node and the fourth node respectively transmit a third signal and a fifth signal in a second time window and a fourth time window; for the second node, receiving a third signal and a fifth signal simultaneously at corresponding locations.

For one embodiment, the first node and the fourth node are both served by the first node.

As an embodiment, the fourth node has no positioning functionality.

As an embodiment, the fourth node transmits the fifth signal according to PRACH resource in time slot 5.

As an embodiment, the first node transmits the third signal according to PRACH resource in time slot 9.

As an example, the third signal is scrambled according to slot 9.

As an embodiment, the fifth signal is scrambled according to slot 5.

Example 9

Embodiment 9 illustrates a block diagram of the structure in a first node, as shown in fig. 9. In fig. 9, a first node 900 comprises a first receiver 901, a second receiver 902 and a first transmitter 903.

A first receiver 901, configured to determine a first timing advance, where the first timing advance is greater than 0;

a second receiver 902 receiving a first signal, the first signal being used to determine a first time window;

a first transmitter 903 which transmits a second signal in a second time window;

in example 9, the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, where the start time of the first time window is later than the start time of the second time window; a first sequence is used to generate the second signal, and the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence.

For one embodiment, the first transmitter 903 transmits a third signal; the first timing advance is used for determining the sending timing of the third signal, and an air interface resource occupied by the third signal is used for indicating the configuration information of the second signal; the third signal carries a preamble sequence.

For one embodiment, the second receiver 902 receives first information; the first information is used to determine location information of a sender of the first information, the location information of the sender of the first information and the location information of the first node at the time of transmitting the first signal being used together to determine the first timing advance.

For one embodiment, the second receiver 902 receives second information; a second sequence is used for generating the third signal, the second sequence is one of Q alternative sequences, the second information is used for determining the Q alternative sequences, and Q is a positive integer greater than 1; there is one alternative sequence out of the Q alternative sequences that can be transmitted in the first time window, other than the second sequence.

For one embodiment, the second receiver 902 receives third information; the third information is used to determine from the first time window and the second time window that the second signal was transmitted in the second time window.

As one embodiment, the second signal includes the first timing advance; the first node transmits the second signal in the second time window when the second signal includes the first timing advance.

For one embodiment, the first receiver 901 receives a target signal; the target signal is used to determine the first timing advance.

For one embodiment, the first receiver 901 comprises at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 in embodiment 4.

For one embodiment, the second receiver 902 comprises at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

As one embodiment, the first transmitter 903 comprises at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 of embodiment 4.

Example 10

Embodiment 10 illustrates a block diagram of the structure in a second node, as shown in fig. 10. In fig. 10, the second node 1000 comprises a second transmitter 1001, a third transmitter 1002 and a third receiver 1003. Wherein the second transmitter 1001 is optional.

A second transmitter 1001 which transmits a target signal;

a third transmitter 1002 that transmits a first signal, the first signal being used to determine a first time window;

a third receiver 1003 receiving the second signal in a second time window;

in embodiment 10, a sender of the second signal determines a first timing advance, the first timing advance being greater than 0; the first timing advance is used to determine a length of a time interval between a start time of the first time window and a start time of the second time window, the start time of the first time window being later than the start time of the second time window; a first sequence is used to generate the second signal, the position of the first time window in the time domain is used to determine an initial value of a generation register of the first sequence; the target signal is used to determine the first timing advance.

For one embodiment, the third receiver 1003 receives a third signal; the first timing advance is used for determining the sending timing of the third signal, and an air interface resource occupied by the third signal is used for indicating the configuration information of the second signal; the third signal carries a preamble sequence.

For one embodiment, the third transmitter 1002 transmits the first information; the first information is used to determine location information of a sender of the first information, the location information of the sender of the first information and the location information of the first node at the time of transmitting the first signal being used together to determine the first timing advance.

For one embodiment, the third transmitter 1002 transmits the second information; a second sequence is used for generating the third signal, the second sequence is one of Q alternative sequences, the second information is used for determining the Q alternative sequences, and Q is a positive integer greater than 1; there is one alternative sequence out of the Q alternative sequences that can be transmitted in the first time window, other than the second sequence.

For one embodiment, the third transmitter 1002 transmits third information; the third information is used to determine from the first time window and the second time window that the second signal was transmitted in the second time window.

As one embodiment, the second signal includes the first timing advance; a transmitter of the second signal transmits the second signal in the second time window when the second signal includes the first timing advance.

For one embodiment, the second transmitter 1001 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the third transmitter 1002 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the third receiver 1003 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of embodiment 4.

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 instructing relevant hardware through a program, 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. First node and second node in this application include but not limited to cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, vehicles, vehicle, RSU, aircraft, unmanned aerial vehicle, wireless communication equipment such as remote control plane. The base station 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, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an over-the-air base station, an RSU, 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 for use in wireless communications, comprising:

a first transmitter to transmit a second signal in a second time window;

2. The first node of claim 1, wherein the first transmitter transmits a third signal; the first timing advance is used for determining the sending timing of the third signal, and an air interface resource occupied by the third signal is used for indicating the configuration information of the second signal; the third signal carries a preamble sequence.

3. The first node according to claim 1 or 2, characterized in that the second receiver receives first information; the first information is used to determine location information of a sender of the first information, the location information of the sender of the first information and the location information of the first node at the time of transmitting the first signal being used together to determine the first timing advance.

4. The first node according to claim 2 or 3, characterized in that the second receiver receives second information; a second sequence is used for generating the third signal, the second sequence is one of Q alternative sequences, the second information is used for determining the Q alternative sequences, and Q is a positive integer greater than 1; there is one alternative sequence out of the Q alternative sequences that can be transmitted in the first time window, other than the second sequence.

5. The first node according to any of claims 1 to 4, wherein the second receiver receives third information; the third information is used to determine from the first time window and the second time window that the second signal was transmitted in the second time window.

6. The first node of any of claims 1-5, wherein the second signal comprises the first timing advance; the first node transmits the second signal in the second time window when the second signal includes the first timing advance.

7. The first node of any of claims 1 to 6, wherein the first receiver receives a target signal; the target signal is used to determine the first timing advance.

8. A second node for use in wireless communications, comprising:

a third receiver that receives a second signal in a second time window;

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

transmitting a second signal in a second time window;

10. A second node for use in wireless communications, comprising:

receiving a second signal in a second time window;