CN115226243A

CN115226243A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN115226243A
Application number: CN202210669383.6A
Authority: CN
Inventors: 刘瑾; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2022-10-21
Also published as: CN113365367A; CN113365367B; CN115226244A

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A first node receives a first signaling group, wherein the first signaling group is used for indicating a first characteristic sequence group and a second characteristic sequence group; transmitting the first signature sequence in a first time interval; transmitting the second signature sequence in a second time interval; whether the first feature sequence belongs to the first feature sequence group or the second feature sequence group is used for selection of the second feature sequence; any signature sequence in the first set of signature sequences is associated with a shared channel resource element in a first period; q is a positive integer greater than 1. The method and the device avoid the first node from continuously selecting the random access preamble of the unassociated shared channel resource unit, thereby ensuring the requirement of UE access delay.

Description

Method and device used in node of wireless communication

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

application date of the original application: 03 month in 2020

- -application number of the original application: 202010140024.2

The invention of the original application is named: method and apparatus in a node 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 scheme and apparatus related to a small packet data large connection in wireless communication.

Background

Application scenes of a future wireless communication system are more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of various application scenarios, research on New air interface technology (NR) or Fifth Generation 5G is decided over 72 sessions of 3GPP (3 rd Generation Partner Project) RAN (Radio Access Network), and standardization of NR is started over 3GPP RAN #75 sessions over WI (Work Item) where NR passes.

With the rise of small packet data services, 3GPP started to initiate standard development and research work under the NR framework at 3GPP ran #86 conferences. The small packet sparse data service comprises two major types of smart phone application and non-smart phone application. Relevant applications of the smart phone include instant messaging services (e.g., whatsap, QQ, wechat, etc.), cardiac pacing and life support services, and push notification services, among others; related applications of non-smart phones include services of wearable devices (e.g., periodic location information, etc.), sensors (periodic or event-triggered temperature, pressure reports), and smart meters, among others.

Disclosure of Invention

The NR Release-16 system introduces a two-Step Random Access procedure (2-Step RACH). MsgA (Message a) of the two-step random access procedure includes a random access preamble (PRACH preamble) and a shared channel load (PUSCH payload), where the random access preamble is sent on one RO (RACH Occasion), and the shared channel load occupies one PRU (PUSCH Resource Unit) on one PO (PUSCH occupancy) for sending. The random access preamble and the PRU in the message a are each independently configured, and a part of the random access preamble and a part of the PRU are invalid due to some resource collision. The association mapping between the random access preamble and the PRU in the message a is implicitly determined, resulting in that part of the random access preamble has no corresponding PRU association. When a User Equipment (UE) always selects a random access preamble without a PRU associated therewith, a PUSCH load cannot be sent in the message a, which results in that the UE actually always operates according to a four-step random access procedure and cannot meet the requirement of access delay.

In view of the above problems, the present application discloses a random access preamble sending mechanism, which can prevent UE from always selecting a random access preamble without associated PRU, thereby ensuring normal random access performance of UE. It should be noted that, without conflict, the embodiments and features in the embodiments in the user equipment of the present application may be applied to the base station, and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict. Further, although the present application was originally intended for random access, the present application can also be used for Beam Failure Recovery (Beam Failure Recovery).

Further, although the present application was originally intended for Uplink (Uplink), the present application can also be used for Sidelink (Sidelink). Further, although the present application was originally directed to single carrier communication, the present application can also be applied to multicarrier communication. Further, although the present application was originally directed to single antenna communication, the present application can also be applied to multi-antenna communication. Further, although the original purpose of the present application is for the terminal and base station scenario, the present application is also applicable to the V2X scenario, the terminal and relay, and the relay and base station communication scenario, and achieves similar technical effects in the terminal and base station scenario. Furthermore, adopting a unified solution for different scenarios (including but not limited to V2X scenarios and terminal to base station communication scenarios) also helps to reduce hardware complexity and cost.

It should be noted that the term (telematics) in the present application is explained with reference to the definitions in the TS36 series, TS37 series and TS38 series of the specification protocols of 3GPP, but can also be defined with reference to the specification protocols of IEEE (Institute of Electrical and Electronics Engineers).

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

receiving a first signaling group, wherein the first signaling group is used for indicating a first characteristic sequence group and a second characteristic sequence group;

selecting a first signature sequence from the Q signature sequences, the first signature sequence being transmitted in a first time interval;

selecting a second signature sequence from the Q signature sequences, the second signature sequence being transmitted in a second time interval;

wherein any one of the Q feature sequences belongs to one of the first feature sequence group and the second feature sequence group; the second time interval is subsequent to the first time interval; whether the first feature sequence belongs to the first feature sequence group or the second feature sequence group is used for selection of the second feature sequence; any signature sequence in the first set of signature sequences is associated with a shared channel resource element in a first period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1.

As an embodiment, the problem to be solved by the present application is: the NR system always selects a random access preamble without an associated PRU in a two-step random access procedure, resulting in a problem of a severe degradation of access performance.

As an example, the method of the present application is: and establishing association between the first characteristic sequence and the second characteristic sequence.

As an example, the method of the present application is: and establishing association between the first characteristic sequence belonging to the first characteristic sequence group or the second characteristic sequence group and the selection of the second characteristic sequence.

As an embodiment, the method described above is characterized in that the first signature sequence and the second signature sequence are different from each other and belong to one of the first signature sequence group and the second signature sequence group.

As an embodiment, the above method is characterized in that the first node is not able to continuously select a signature sequence from the set of target signature sequences in the present application.

As an embodiment, the above method has the advantage of avoiding the first node to continuously select random access preambles of unassociated PRUs, thereby guaranteeing the UE access delay requirement.

As an embodiment, the above method has a benefit of avoiding that the first node always occupies the random access preamble of the associated PRU, occupying other UEs with quick access opportunities.

According to an aspect of the application, the method described above is characterized in that, when the first feature sequence belongs to a target sequence group, the second feature sequence is selected from the other one of the first feature sequence group and the second feature sequence group other than the target sequence group, the target sequence group belonging to one of the first feature sequence group and the second feature sequence group.

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

respectively transmitting L-1 characteristic sequences in L-1 time intervals;

wherein L is a positive integer greater than 1, and L-1 time intervals all precede the first time interval; the L-1 characteristic sequences all belong to the target characteristic sequence group.

According to an aspect of the application, the above method is characterized in that the first signaling group indicates the L.

monitoring the second message for a first time window;

wherein the first time window is between the first time interval and the second time interval; the second message is used to determine that the first signature sequence was correctly received; the second message not being detected is used to trigger the sending of the second signature sequence.

According to an aspect of the application, the method described above is characterized in that the target characteristic-sequence group is the first characteristic-sequence group.

According to an aspect of the application, the method described above is characterized in that the target characteristic-sequence group is the second characteristic-sequence group.

According to an aspect of the application, the above method is characterized in that the first node is a user equipment.

According to an aspect of the application, the above method is characterized in that the first node is a base station.

According to an aspect of the application, the above method is characterized in that the first node is a relay node.

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

sending a first signaling group, wherein the first signaling group is used for indicating a first characteristic sequence group and a second characteristic sequence group;

detecting a first signature sequence in a first time interval;

detecting a second signature sequence in a second time interval;

wherein the first and second signature sequences are two signature sequences of Q signature sequences, respectively; any one of the Q characteristic sequences belongs to one of the first characteristic sequence group and the second characteristic sequence group; the second time interval is subsequent to the first time interval; whether the first signature sequence belongs to the first set of signature sequences or the second set of signature sequences is used for selection of the second signature sequence; any signature sequence in the first set of signature sequences is associated with a shared channel resource element in a first period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1.

respectively detecting L-1 characteristic sequences in L-1 time intervals;

transmitting a second message in a first time window;

wherein the first time window is between the first time interval and the second time interval; the second message does not carry an identification of the first signature sequence.

According to an aspect of the application, the method is characterized in that the target characteristic-sequence group is the second characteristic-sequence group.

According to an aspect of the application, the above method is characterized in that the second node is a user equipment.

According to an aspect of the application, the above method is characterized in that the second node is a base station.

According to an aspect of the application, the above method is characterized in that the second node is a relay node.

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

a first receiver that receives a first signaling group, the first signaling group being used to indicate a first characteristic sequence group and a second characteristic sequence group;

a first transmitter that selects a first signature sequence from the Q signature sequences and transmits the first signature sequence in a first time interval; selecting a second signature sequence from the Q signature sequences, the second signature sequence being transmitted in a second time interval;

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

a second transmitter to transmit a first signaling group, the first signaling group being used to indicate a first signature sequence group and a second signature sequence group;

a second receiver that detects a first signature sequence in a first time interval; detecting a second signature sequence in a second time interval;

wherein the first and second signature sequences are two signature sequences of Q signature sequences, respectively; any one of the Q characteristic sequences belongs to one of the first characteristic sequence group and the second characteristic sequence group; the second time interval is subsequent to the first time interval; whether the first feature sequence belongs to the first feature sequence group or the second feature sequence group is used for selection of the second feature sequence; any signature sequence in the first set of signature sequences is associated with a shared channel resource element in a first period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1.

As an embodiment, the present application has the following advantages:

the method solves the problem that the NR system always selects the random access preamble without the associated PRU in the two-step random access process, so that the access performance is seriously reduced.

-the present application establishes an association between said first signature sequence and said second signature sequence.

-the application associates whether the first signature sequence belongs to the first set of signature sequences or the second set of signature sequences with a selection of the second signature sequence.

-the first signature sequence and the second signature sequence in this application belong to one of the first set of signature sequences and the second set of signature sequences differently.

-the first node is not able to select a signature sequence from the set of target signature sequences in the present application consecutively in the present application.

The present application avoids that the first node continuously selects random access preambles of unassociated PRUs, thereby guaranteeing the UE access delay requirement.

The present application will avoid that the first node always occupies the random access preamble of the associated PRU, occupying other UE fast access opportunities.

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 a radio protocol architecture of a user plane and a 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 application;

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

FIG. 6 illustrates a diagram of the relationship between shared channel occasions and shared channel resource elements according to one embodiment of the present application;

fig. 7 shows a diagram of a relationship between a shared channel resource element and a first message according to a first signature sequence according to an embodiment of the application;

fig. 8 shows a schematic diagram of a relationship between a first set of signature sequences, a second set of signature sequences and Q signature sequences according to an embodiment of the application;

fig. 9 shows a schematic diagram of a first set of signature sequences, a second set of signature sequences and a shared channel resource element according to an embodiment of the application;

fig. 10 is a diagram illustrating a relationship between a first characteristic-sequence set, a second characteristic-sequence set, and a target-sequence set according to an embodiment of the present application;

FIG. 11 shows a schematic diagram of the relationship between L-1 signature sequences and a set of target sequences, according to one embodiment of the present application;

FIG. 12 illustrates a schematic diagram of a first time interval, a second time interval, and a first time period according to an embodiment of the present application;

fig. 13 shows a block diagram of a processing apparatus for use in a first node device 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 according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step.

In embodiment 1, a first node in this application first performs step 101, and receives a first signaling group, where the first signaling group is used to indicate a first signature sequence group and a second signature sequence group; then, step 102 is executed to select a first signature sequence from the Q signature sequences, and the first signature sequence is sent in a first time interval; finally, step 103 is executed, a second signature sequence is selected from the Q signature sequences, and the second signature sequence is sent in a second time interval; any one of the Q feature sequences belongs to one of the first feature sequence group and the second feature sequence group; the second time interval is subsequent to the first time interval; whether the first signature sequence belongs to the first set of signature sequences or the second set of signature sequences is used for selection of the second signature sequence; any signature sequence in the first set of signature sequences is associated with a shared channel resource element in a first period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1.

As an embodiment, the first signaling group is broadcast.

As an embodiment, the first set of signaling includes higher layer signaling.

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

As an embodiment, the first signaling group includes a positive integer number of the first type signaling.

As an embodiment, the positive integer number of the first type signaling included in the first signaling group is Higher Layer signaling (Higher Layer signaling).

As an embodiment, the positive integer of the first type signaling in the first signaling group is RRC (Radio Resource Control) layer signaling.

As an embodiment, at least one of the positive integer number of first type signaling included in the first signaling group is RRC layer signaling.

As an embodiment, the positive integer number of first type signaling in the first signaling group is one or more fields (fields) in a positive integer number of RRC IEs (Information elements), respectively.

As an embodiment, the positive integer number of the first type signaling in the first signaling group is a positive integer number of fields in one RRC IE.

As an embodiment, the positive integer number of first type signaling in the first signaling group are SIBs.

As an embodiment, at least one of the positive integer number of first type signaling included in the first signaling group is an SIB.

As an embodiment, at least one first type signaling of the positive integer number of first type signaling in the first signaling group is MIB (Master Information Block).

As an embodiment, the first signaling group includes System Information (System Information) transmitted on BCH (Broadcast Channel).

As an embodiment, the first signaling group is used to indicate a random access preamble parameter.

As an embodiment, the first signaling group includes configuration parameters sent by a PRACH (Physical Random Access Channel).

As an embodiment, the first signaling group includes Cell-specific (Cell-specific) random access parameters.

As an embodiment, the positive integer number of first type signaling in the first signaling group comprises RRC IE RACH-ConfigCommon.

As a sub-embodiment of the above embodiment, the definition of RRC IE RACH-ConfigCommon refers to section 6.3.2 of 3gpp ts38.331.

As an embodiment, the first signaling group comprises a PRACH preamble format (preamble format).

As an embodiment, the first signaling group comprises time resources of a PRACH preamble.

As an embodiment, the first signaling group comprises frequency resources (frequency resources) of a PRACH preamble.

As an embodiment, the first signaling group includes a root sequence (the root sequences) and cyclic shifts (cyclic shifts) of a set of PRACH preamble sequences (preamble sequence sets).

As an embodiment, the first signaling group includes at least one of an index in a logical root sequence table (local root sequence table) of a PRACH preamble sequence set, a cyclic shift (cyclic shift), and a PRACH preamble sequence set type.

As an embodiment, the PRACH preamble sequence set types include unrestricted (unrestricted), restricted set a (restricted set a) and restricted set B (restricted set B).

As an embodiment, the first signaling group includes an index of a root sequence of a PRACH (PRACH root sequence index).

As one embodiment, the first signaling group includes a PRACH preamble subcarrier spacing.

As one embodiment, the first signaling group includes a transmit power of a PRACH preamble.

As one embodiment, the first set of signaling includes PRACH resources.

As an embodiment, the first signaling group includes a positive integer number of ROs (RACH occupancy, random access Occasion) in a first period.

As an embodiment, the positive integer number of ROs in the first period are respectively a positive integer number of PRO (PRACH occupancy, physical random access Occasion) in the first period.

As one embodiment, the first signaling group indicates a positive integer number of ROs in the first period.

As an embodiment, the first signaling group indicates one RO in the first period.

As one embodiment, the first signaling group indicates that any one of the positive integer number of ROs in the first period is associated with a positive integer number of SS/PBCH blocks (SS/PBCH blocks, synchronization signal/broadcast channel blocks).

As one embodiment, the first signaling group indicates that at least one RO of the positive integer number of ROs in the first period is associated with a positive integer number of SS/PBCH blocks.

As an embodiment, the first signaling group indicates R collision-based preambles corresponding to any SS/PBCH block of the positive integer number of SS/PBCH blocks associated with any valid RO in the first period, where R is a positive integer not greater than 64.

As an embodiment, the first signaling group includes ssb-perRACH-occupancy and dcb-preamblisperssb signaling.

As an example, the definition of ssb-perRACH-occupancy andcb-preamblisperssb signaling refers to section 6.3.2 of 3gpp ts38.331.

As one embodiment, the first signaling group is used to indicate X shared channel occasions in the first period.

As an embodiment, the first signaling group comprises msgA-PUSCH-config.

As an example, the definition of msgA-PUSCH-config refers to 3gpp ts38.331.

For one embodiment, the first signaling group is used to indicate a downlink control channel.

As an embodiment, the first signaling group includes a cell-specific PDCCH (Physical Downlink Control Channel) parameter configuration.

As an embodiment, the first signaling group comprises PDCCH-config.

As an example, the PDCCH-config definition refers to 3gpp ts38.331.

As an embodiment, the first time period includes Q signature sequences, and any two of the Q signature sequences are orthogonal.

As an embodiment, at least two of the Q signature sequences are orthogonal in the code domain.

As an embodiment, at least two of the Q signature sequences are orthogonal in the frequency domain.

As an embodiment, at least two of the Q signature sequences are orthogonal in the time domain.

As an embodiment, the first alternative sequence is any one of the Q signature sequences.

As one example, Q is a positive integer multiple of 64.

As one example, Q is 64.

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

As an embodiment, the first alternative sequence is a Gold sequence.

As an embodiment, the first alternative sequence is an M-sequence.

As an embodiment, the first alternative sequence is a ZC (zadoff-Chu) sequence.

As an embodiment, the first alternative sequence is a Preamble sequence (Preamble).

As an embodiment, the first alternative sequence is a Random Access Preamble (Random Access Preamble).

As an embodiment, the first alternative sequence is a Physical Random Access Channel Preamble (PRACH Preamble).

As an example, the first alternative sequence is a Long Preamble sequence (Long Preamble).

As an embodiment, the first alternative sequence is a Short Preamble sequence (Short Preamble).

As an embodiment, the first alternative sequence is generated in section 6.3.3.1 of 3gpp ts38.211.

As an embodiment, the subcarrier spacing of the subcarriers occupied by the first alternative sequence in the frequency domain is one of 1.25khz,5khz,15khz,30khz,60khz, 120khz.

As an embodiment, the length of the first alternative sequence is 839, and the subcarrier spacing of the subcarriers occupied by any one of the Q signature sequences is one of 1.25kHz or 5 kHz.

As an embodiment, the length of the first alternative sequence is 139, and the subcarrier spacing of the subcarriers occupied by any one of the Q signature sequences is one of 15khz,30khz,60khz, or 120 kHz.

As an embodiment, the first alternative sequence includes a positive integer number of subsequences of a first type, and the positive integer number of subsequences of the first type is TDM (Time-Division Multiplexing).

As a sub-embodiment of the foregoing embodiment, the positive integer number of sub-sequences of the first class included in the first alternative sequence is the same.

As a sub-embodiment of the foregoing embodiment, at least two first-type subsequences in the positive integer number of first-type subsequences included in the first alternative sequence are different.

As an embodiment, the first candidate sequence is subjected to Discrete Fourier Transform (DFT) and Orthogonal Frequency Division Multiplexing (OFDM) modulation.

As one embodiment, the first time period includes a positive integer number of time slots (slots).

For one embodiment, the first time period includes a plurality of time slots.

As one embodiment, the first period includes 1 slot.

As one embodiment, the first time period includes a positive integer number of subframes (subframes).

As one embodiment, the first period includes a plurality of subframes.

As one embodiment, the first period includes 1 subframe.

As an embodiment, the first time period includes a positive integer number of Radio frames (Radio frames).

For one embodiment, the first time period includes a plurality of radio frames.

As an embodiment, the first time period includes 1 radio frame.

As one embodiment, the first period of time is continuous in time.

As an example, the first Period includes 1 Association Pattern Period (Association Pattern Period) for SSB (SS/PBCH Block, synchronization Signal/Physical Broadcast Channel Block, synchronization Signal/Broadcast Signal Block) -to-RO (RACH occupancy, random Access Channel occupancy, random Access opportunity) mapping.

As one embodiment, the first time period includes a positive integer number of time intervals.

As an embodiment, the positive integer number of Time intervals included in the first period is TDM (Time Division Multiplexing).

As an embodiment, the positive integer number of time intervals included in the first period is FDM (Frequency Division Multiplexing).

As an embodiment, any two of the positive integer number of time intervals included in the first period are one of TDM or FDM.

As an embodiment, at least two of the positive integer number of time intervals comprised by the first time period are TDM and FDM.

As an embodiment, any one of the positive integer number of time intervals included in the first period includes a positive integer number of multicarrier symbols.

As an embodiment, any one of the positive integer number of time intervals included in the first period includes a positive integer number of ROs (RACH occusion, random access Occasion).

As an embodiment, any one of the positive integer number of time intervals included in the first period includes a positive integer number of PRO (PRACH occupancy, physical random access occasions).

As an embodiment, the first time interval and the second time interval are respectively two time intervals of the positive integer number of time intervals included in the first period, and the first time interval is earlier than the second time interval.

As one embodiment, the first time period includes the Q signature sequences.

As an embodiment, the Q signature sequences are distributed in the positive integer number of time intervals included in the first period.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. FIG. 2 illustrates a diagram of a network architecture 200 for the 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 5G NR 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, one UE241 in Sidelink (sildelink) communication with the UE201, 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 service 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 UE201. 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. In an NTN network, examples of the gNB203 include a satellite, an aircraft, or a ground base station relayed through a satellite. 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 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management Field)/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.MME/AMF/SMF211 is a control node that handles signaling between UE201 and 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 first node in the present application includes the UE201.

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

As an embodiment, the UE201 is included in the user equipment of the present application.

As an embodiment, the base station in this application includes the gNB203.

As an embodiment, the receivers of the first signaling group in this application comprise the UE201.

As an embodiment, the sender of the first signaling group in this application includes the gNB203.

As an embodiment, the sender of the first signature sequence in this application includes the UE201.

As an embodiment, the receiver of the first signature sequence in this application includes the gNB203.

As an embodiment, the sender of the second signature sequence in this application includes the UE201.

As an embodiment, the receiver of the second signature sequence in this application includes the gNB203.

As an embodiment, the sender of the L-1 signature sequences in this application includes the UE201.

As an example, the recipient of the L-1 signature sequences in this application includes the gNB203.

As an embodiment, the receiver of the second message in this application includes the UE201.

As an embodiment, the sender of the second message in this application includes the gNB203.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 showing the radio protocol architecture for a first node device (RSU in UE or V2X, car-mounted device or car-mounted communication module) and a second node device (gNB, RSU in UE or V2X, car-mounted device or car-mounted communication module), or a control plane 300 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 PHY301, and is responsible for the link between the first node device and the second node device and the two UEs through PHY301. The L2 layer 305 includes a MAC (media 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 device. The PDCP sublayer 304 provides data ciphering and integrity protection, and the PDCP sublayer 304 also provides handover support for a first node device to a second node device. The RLC sublayer 303 provides segmentation and reassembly of packets, retransmission of missing packets by ARQ, and the RLC sublayer 303 also provides duplicate packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first node devices. 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 device and the first node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), and the radio protocol architecture for the first node device and the second node device in the user plane 350 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 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.

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

As an embodiment, the first signaling group in this application is generated in the RRC sublayer 306.

For one embodiment, the first signaling group in this application is transmitted to the PHY301 via the MAC sublayer 302.

As an embodiment, the first signature sequence in this application is generated in the PHY301.

As an embodiment, the second signature sequence in this application is generated in the PHY301.

As an example, the L-1 signature sequences in this application are generated in the PHY301.

As an embodiment, the second message in this application is generated in the MAC sublayer 302.

As an embodiment, the second message in this application is transmitted to the PHY301 via the MAC sublayer 302.

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 410 and a second communication device 450 communicating with each other in an access network.

The first communications 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.

The second 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.

In transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to a controller/processor 475. The controller/processor 475 implements the functionality of the L2 layer. In transmissions from the first 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 second communications device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the second 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 450, 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 first communications apparatus 410 to the second communications apparatus 450, each receiver 454 receives a signal through its respective antenna 452 at the second 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 streams from 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 second 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 first 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 functions 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 first 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 second communications device 450 to the first communications device 410, a data source 467 is used at the second communications device 450 to provide upper layer data packets to a controller/processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the send function at the first communications apparatus 410 described in the transmission from the first communications apparatus 410 to the second 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 first 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 second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the receiving functionality at the second communication device 450 described in the transmission from the first communication device 410 to the second 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 functions of the L1 layer. The controller/processor 475 implements the L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In transmissions from the second communications device 450 to the first 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 node in this application includes the second communication device 450, and the second node in this application includes the first communication device 410.

As a sub-embodiment of the foregoing embodiment, the first node is a user equipment, and the second node is a base station equipment.

As a sub-embodiment of the foregoing embodiment, the first node is a user equipment, and the second node is a relay node.

As a sub-embodiment of the foregoing embodiment, the first node is a relay node, and the second node is a base station device.

As a sub-embodiment of the above-described embodiment, the second communication device 450 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.

As a sub-embodiment of the above-described embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.

As a sub-embodiment of the above-mentioned embodiments, the first communication device 410 comprises: at least one controller/processor; the at least one controller/processor is responsible for error detection using a positive Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.

As an embodiment, the second communication device 450 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 450 apparatus at least: receiving a first signaling group, wherein the first signaling group is used for indicating a first characteristic sequence group and a second characteristic sequence group; selecting a first signature sequence from the Q signature sequences, the first signature sequence being transmitted in a first time interval; selecting a second signature sequence from the Q signature sequences, the second signature sequence being transmitted in a second time interval; any one of the Q characteristic sequences belongs to one of the first characteristic sequence group and the second characteristic sequence group; the second time interval is subsequent to the first time interval; whether the first feature sequence belongs to the first feature sequence group or the second feature sequence group is used for selection of the second feature sequence; any signature sequence in the first set of signature sequences is associated to a shared channel resource element in a first time period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1.

As an embodiment, the second 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: receiving a first signaling group, wherein the first signaling group is used for indicating a first characteristic sequence group and a second characteristic sequence group; selecting a first signature sequence from the Q signature sequences, the first signature sequence being transmitted in a first time interval; selecting a second signature sequence from the Q signature sequences, the second signature sequence being transmitted in a second time interval; any one of the Q characteristic sequences belongs to one of the first characteristic sequence group and the second characteristic sequence group; the second time interval is subsequent to the first time interval; whether the first signature sequence belongs to the first set of signature sequences or the second set of signature sequences is used for selection of the second signature sequence; any signature sequence in the first set of signature sequences is associated to a shared channel resource element in a first time period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1.

As an embodiment, the first communication device 410 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 first communication device 410 means at least: sending a first signaling group, wherein the first signaling group is used for indicating a first characteristic sequence group and a second characteristic sequence group; detecting a first signature sequence in a first time interval; detecting a second signature sequence in a second time interval; the first signature sequence and the second signature sequence are two signature sequences of Q signature sequences, respectively; any one of the Q characteristic sequences belongs to one of the first characteristic sequence group and the second characteristic sequence group; the second time interval is subsequent to the first time interval; whether the first signature sequence belongs to the first set of signature sequences or the second set of signature sequences is used for selection of the second signature sequence; any signature sequence in the first set of signature sequences is associated to a shared channel resource element in a first time period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending a first signaling group, wherein the first signaling group is used for indicating a first characteristic sequence group and a second characteristic sequence group; detecting a first signature sequence in a first time interval; detecting a second signature sequence in a second time interval; the first signature sequence and the second signature sequence are two signature sequences of Q signature sequences, respectively; any one of the Q characteristic sequences belongs to one of the first characteristic sequence group and the second characteristic sequence group; the second time interval is subsequent to the first time interval; whether the first signature sequence belongs to the first set of signature sequences or the second set of signature sequences is used for selection of the second signature sequence; any signature sequence in the first set of signature sequences is associated to a shared channel resource element in a first time period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1.

As one example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used to receive the first signaling group in this application.

As an example, at least one of { the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467} is used in this application to select the first signature sequence from the Q signature sequences.

As an example, at least one of { the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467} is used in this application to transmit a first signature sequence in a first time interval.

As an example, at least one of { the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467} is used to select the second signature sequence from the Q signature sequences in this application.

As an example, at least one of { the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467} is used for transmitting the second signature sequence in the second time interval in this application.

As one example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467 may be used to transmit the L-1 signature sequences in L-1 time intervals, respectively, as described herein.

As one example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used for monitoring for a second message in a first time window as described herein.

As an example, at least one of { the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476} is used in this application to transmit the first signaling group.

As an example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for detecting a first signature sequence in a first time interval in this application.

As an example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used in the present application to detect a second signature sequence in a second time interval.

As one example, at least one of { the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476} is used in this application to detect L-1 signature sequences in L-1 time intervals, respectively.

As an example, at least one of { the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476} is used in this application to send the second message in the first time window.

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 first node U1 and the second node U2 communicate with each other over an air interface. The steps in the dashed boxes F0 and F1 in fig. 5, respectively, are optional.

ForFirst node U1Receiving a first signaling group in step S11; respectively transmitting L-1 characteristic sequences in L-1 time intervals in step S12;selecting a first signature sequence from the Q signature sequences in step S13; transmitting a first signature sequence in a first time interval in step S14; monitoring the second message in a first time window in step S15; selecting a second signature sequence from the Q signature sequences in step S16; in step S17, a second signature sequence is transmitted in a second time interval.

For theSecond node U2Transmitting a first signaling group in step S21; respectively detecting L-1 characteristic sequences in L-1 time intervals in step S22; detecting a first signature sequence in a first time interval in step S23; transmitting a second message in a first time window in step S24; in step S25, a second signature sequence is detected in a second time interval.

In embodiment 5, the first signaling group is used by the second node U2 to indicate a first signature sequence group and a second signature sequence group; any one of the Q characteristic sequences belongs to one of the first characteristic sequence group and the second characteristic sequence group; the second time interval is subsequent to the first time interval; whether the first signature sequence belongs to the first set of signature sequences or the second set of signature sequences is used for selection of the second signature sequence; any signature sequence in the first set of signature sequences is associated to a shared channel resource element in a first time period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1; l is a positive integer greater than 1, the L-1 time intervals all precede the first time interval; the first signaling group indicates the L; the first time window is between the first time interval and the second time interval; the second message is used by the first node U1 to determine that the first signature sequence was not correctly received; the monitoring operation is used by the first node U1 to trigger the sending of the second signature sequence.

As an embodiment, when the first feature sequence belongs to a target sequence group, the second feature sequence is selected by the first node U1 from the other one of the first feature sequence group and the second feature sequence group other than the target sequence group, the target sequence group belonging to one of the first feature sequence group and the second feature sequence group.

As an embodiment, the first feature sequence belongs to a target sequence group, and when the target feature sequence group is the first feature sequence group, the second feature sequence is selected from the second feature sequence group by the first node U1.

As an embodiment, the first feature sequence belongs to a target sequence group, and when the target feature sequence group is the second feature sequence group, the second feature sequence is selected from the first feature sequence group by the first node U1.

As an example, when the L-1 feature sequences and the first feature sequence both belong to the target sequence group, the second feature sequence is selected by the first node U1 from the other one of the first feature sequence group and the second feature sequence group other than the target sequence group, the target sequence group belonging to one of the first feature sequence group and the second feature sequence group.

In one embodiment, the L-1 feature sequences and the first feature sequence belong to the target sequence group, and when the target feature sequence group is the first feature sequence group, the second feature sequence is selected from the second feature sequence group by the first node U1.

As an example, the L-1 feature sequences and the first feature sequence belong to the target sequence group, and when the target feature sequence group is the second feature sequence group, the second feature sequence is selected from the first feature sequence group by the first node U1.

As an example, the step of block F0 in fig. 5 is not present.

As an example, the step of block F0 in fig. 5 exists.

As an example, when the first signature sequence is an initial transmission of the first node U1, the step of block F0 in fig. 5 does not exist.

As an example, the step of block F0 in fig. 5 exists when the first signature sequence is not an initial transmission of the first node U1.

As an example, the step of block F1 in fig. 5 is not present.

As an example, the step of block F1 in fig. 5 is absent when the first signature sequence is not detected.

As an example, the step of block F1 in fig. 5 exists when the first signature sequence is detected.

As an embodiment, when the first signature sequence is not detected, the second node U2 abandons sending the second message in the first time window.

As an embodiment, the detecting refers to receiving based on coherent detection, that is, the second node U2 performs coherent reception on a wireless signal with the first signature sequence in the first time interval, and measures energy of a signal obtained after the coherent reception; if the energy of the signal obtained after the coherent reception is greater than a given threshold value, judging that the first characteristic sequence is detected in the first time interval; otherwise, the first characteristic sequence is not detected in the first time interval.

Example 6

Embodiment 6 illustrates a schematic diagram of a relationship between a shared channel opportunity and a shared channel resource unit according to an embodiment of the present application, as shown in fig. 6. In fig. 6, the horizontal axis represents time, the number axis represents frequency, and the diagonal axis represents reference signal resources; the bold solid line box represents a shared channel opportunity in this application; the small rectangles filled with the diagonal squares represent the first reference signal resource in the present application; the small rectangles filled with diagonal stripes represent the second reference signal resource in this application. In fig. 6, the bold solid line box carrying the italic rectangle represents the first shared channel resource unit in the present application; the heavy solid box carrying the diagonal rectangles represents the second shared channel resource unit in this application.

In embodiment 6, a first period comprises a positive integer number of shared channel occasions, the first period comprises a positive integer number of shared channel resource units, and any one of the positive integer number of shared channel resource units included in the first period is one of the positive integer number of shared channel occasions included in the first period is associated with one of a positive integer number of reference signal resources.

As one embodiment, any one of the positive integer number of shared channel occasions included in the first period includes PUSCH.

As one embodiment, any one of the positive integer number of shared channel occasions included in the first period is one PUSCH occasion.

As an embodiment, any one of the positive integer number of shared channel occasions included in the first period includes a positive integer number of PRBs(s) (Physical Resource blocks (s)).

As one embodiment, any one of the positive integer number of shared channel occasions comprised by the first period comprises a positive integer number of consecutive PRBs(s).

As one embodiment, any one of the positive integer number of shared channel occasions included by the first time period includes a positive integer number of subcarriers (s)).

As one embodiment, any one of the positive integer number of shared channel occasions included in the first time period includes a positive integer number of subframes (Subframe (s)).

As one embodiment, any one of the positive integer number of shared channel occasions included in the first time period includes a positive integer number of slots (s)).

As one embodiment, any one of the positive integer number of shared channel occasions included in the first time period includes a positive integer number of multicarrier symbols (Symbol (s)).

As an embodiment, at least two of the positive integer number of shared channel occasions included in the first time period belong to the same time slot.

As a sub-embodiment of the above embodiment, the one slot comprises 14 multicarrier symbols.

As one embodiment, at least two of the positive integer number of shared channel occasions included in the first period are FDM (Frequency Division Multiplexing).

As an embodiment, at least two of the positive integer number of shared channel occasions included in the first period are TDM (Time Division Multiplexing).

As one embodiment, at least two of the positive integer number of shared channel occasions included in the first period are TDM and FDM.

As one embodiment, any two of the positive integer number of shared channel occasions included in the first time period are non-overlapping.

As one embodiment, the target shared channel occasion is any one of the positive integer number of shared channel occasions included in the first period.

As a sub-embodiment of the foregoing embodiment, any one of the positive integer multiple carrier symbols included in the target shared channel occasion is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As a sub-embodiment of the foregoing embodiment, any one of the positive integer multi-Carrier symbols included in the target shared channel opportunity is an SC-FDMA (Single-Carrier Frequency Division Multiple Access) symbol.

As a sub-embodiment of the foregoing embodiment, any one of the positive integer multiple carrier symbols included in the target shared channel occasion is a DFT-S-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing) symbol.

As a sub-embodiment of the foregoing embodiment, any one of the positive integer Multiple carrier symbols included in the target shared channel opportunity is an FDMA (Frequency Division Multiple Access) symbol.

As a sub-embodiment of the above embodiment, any one of the positive integer Multi-Carrier symbols comprised by the target shared channel occasion is an FBMC (Filter Bank Multi-Carrier) symbol.

As a sub-embodiment of the foregoing embodiment, any one of the positive integer Multiple carrier symbols included in the target common channel opportunity is an IFDMA (Interleaved Frequency Division Multiple Access) symbol.

As an embodiment, the first period includes X shared channel occasions, the X shared channel occasions included in the first period correspond to X shared channel resource groups, each shared channel resource group in the X shared channel resource groups includes Y shared channel resource units, X is a positive integer, and Y is a positive integer.

For one embodiment, the X sets of shared channel resources each include [ Y ₁ ，Y ₂ ，……,Y _X ]A shared channel resource unit, wherein said Y ₁ To the Y _X Are all positive integers.

As an embodiment, the X shared channel resource groups respectively correspond to X reference signal resource groups one to one.

For one embodiment, the X reference signal resource groups respectively comprise [ Y ₁ ，Y ₂ ，……,Y _X ]A reference signal resource.

As an embodiment, the Y shared channel resource units included in any one of the X shared channel resource groups respectively correspond to Y reference signal resources included in one of the X reference signal resource groups one to one.

As one embodiment, the target set of reference signal resources is one set of reference signals from the X sets of reference signal resources, the target set of reference signal resources including a first reference signal resource and a second reference signal resource.

As an embodiment, a target shared channel opportunity is one of the X shared channel opportunities included in the first period, the target shared channel opportunity corresponds to a target set of shared channel resources, and the target set of shared channel resources is one of the X set of shared channel resources.

As an embodiment, the target set of shared channel resources includes a first shared channel resource element and a second shared channel resource element, the first shared channel resource element is that the target shared channel occasion is associated with the first reference signal resource, and the second shared channel resource element is that the target shared channel occasion is associated with the second reference signal resource.

As an embodiment, the first shared channel resource unit is used for transmission of a first target wireless signal, the first target wireless signal occupying the target shared channel occasion, the first target wireless signal employing the first reference signal resource.

As an embodiment, the small-scale channel characteristics obtained by the first reference signal resource are used for demodulation of the first target wireless signal.

As an embodiment, the second shared channel resource unit is used for transmission of a second target wireless signal, the second target wireless signal occupying the target shared channel occasion, the second target wireless signal employing the second reference signal resource.

As an embodiment, the small-scale channel characteristics obtained through the second reference signal resource are used for demodulation of the second target wireless signal.

As an embodiment, the X shared channel occasions included in the first time period are indicated by one of the positive integer number of second type signaling included in the first signaling group.

As one embodiment, the X shared channel occasions included in the first time period are indicated by msgA-PUSCH-config.

As an embodiment, any one of the X reference signal groups is indicated by one of the positive integer number of second type signaling comprised by the first signaling group.

As an embodiment, any one of the X reference signal groups is indicated by msgA-DMRS-Configuration.

Example 7

Embodiment 7 illustrates a schematic diagram of a relationship between a shared channel resource unit and a first message according to a first signature sequence of an embodiment of the present application, as shown in fig. 7. In fig. 7, the unfilled squares represent the first signature sequence in this application. In case a of fig. 7, the diagonal grid filled rectangle represents one shared channel resource element in the present application.

In case a of embodiment 7, the first message in the present application includes a first signature sequence and a first signal; said first signature sequence is associated to a shared channel resource element; the one shared channel resource element is used for transmission of the first signal. In case B of embodiment 7, the first message in the present application includes a first signature sequence; the first signature sequence is not associated to one shared channel resource unit.

For one embodiment, the first message includes a baseband signal.

For one embodiment, the first message comprises a radio frequency signal.

For one embodiment, the first message includes a wireless signal.

As an embodiment, the Channel occupied by the first message includes a Random Access Channel (RACH).

As an embodiment, the Channel occupied by the first message includes RACH and UL-SCH (Uplink Shared Channel).

As an embodiment, the Channel occupied by the first message includes a PRACH (Physical Random Access Channel) and a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the Channel occupied by the first message includes NPRACH (narrow band Physical Random Access Channel).

As one embodiment, the first message includes the first signature sequence.

As one embodiment, the first message includes the first signature sequence and the first signal.

As an embodiment, the first message comprises the first signature sequence and the first signal, the first signature sequence being associated to one of the positive integer number of shared channel resource elements comprised in the first time period used for transmitting the first signal.

As one embodiment, the first message includes the first signature sequence, and the first message does not include the first signal.

As an embodiment, the first signature sequence in the first message occupies a PRACH and the first signal in the first message occupies a PUSCH.

As an embodiment, the first signature sequence in the first message occupies one random access occasion in the first period, and the first signal in the first message occupies one shared channel occasion in the first period.

As an embodiment, the first signature sequence in the first message occupies one random access occasion in the first period, the first signal in the first message occupies one shared channel resource element in the first period, and the first signature sequence is associated to the one shared channel resource element in the first period.

As an embodiment, the first signature sequence being associated to a shared channel resource unit in the first period refers to: the first message includes the first signature sequence and the first signal, and one shared channel resource unit in the first period is used to transmit the first signal in the first message.

As an embodiment, the first signature sequence in the first message occupies one random access occasion in the first period, the first signature sequence not being associated to any of the positive integer number of shared channel resource units comprised in the first period.

As an embodiment, the first signature sequence in the first message occupies one random access occasion in the first period, the first message does not include the first signal, and the first signature sequence is not associated to any of the positive integer number of shared channel resource elements included in the first period.

As an embodiment, the first signature sequence not associated to a shared channel resource unit in the first period means: the first message includes the first signature sequence, the first message does not include the first signal, and any of the positive integer number of shared channel resource units included in the first time period is not used to transmit the first message.

As an embodiment, the first message is a first message in a Random Access Procedure (Random Access Procedure).

As an embodiment, the first Message is MsgA (Message a) in a random access procedure.

As one embodiment, the first message is MsgA in Random Access Procedure Type-2 (Type-2 Random Access Procedure).

As an example, the definition of Type-2 Random Access Procedure refers to section 8 of 3GPP TS38.213.

As an embodiment, the first message carries a first identifier.

As an embodiment, the first message carries a first identifier and a second identifier.

As an embodiment, the signature sequence in the first message indicates the first identity.

As an embodiment, the signature sequence in the first message indicates the first identifier, and the signal in the first message includes the second identifier.

As an embodiment, the signature sequence in the first message indicates the first identity, and the signal in the first message includes the first identity and the second identity.

As one embodiment, the first identity and the second identity are used for scrambling of the first signal in the first message.

As an embodiment, the first message carries the first identifier, and the first message does not carry the second identifier.

As an embodiment, the first identifier is an index of the first signature sequence in a positive integer number of signature sequences configured in the first time interval.

As an embodiment, the first identifier is a Random Access Preamble Identity (Random Access Preamble Identity).

As an embodiment, the first identifier is an Extended RAPID.

As an embodiment, the second identity is TC-RNTI (Temporary Cell-radio network Temporary identity).

As an embodiment, the second identity is a C-RNTI (Cell-RNTI, cell radio network temporary identity).

As an embodiment, the second identifier is a random number.

As an embodiment, the second identity is a TC-RNTI occupied by the first node.

As an embodiment, the second identity is a C-RNTI occupied by the first node.

As an embodiment, the second identifier is a random number generated by the first node.

As an embodiment, the first identifier is a positive integer.

As an embodiment, the first identifier is a positive integer from 1 to 64.

As an embodiment, the first flag is a positive integer from 0 to 63.

As an embodiment, the second identifier is a positive integer.

As an embodiment, the second flag includes a positive integer number of bits.

As an embodiment, the second identity comprises 8 bits.

As an embodiment, the first signature sequence is one signature sequence of the Q signature sequences.

As an embodiment, the first signature sequence belongs to one of the first signature sequence group and the second signature sequence group.

As an embodiment, the first signature sequence is transmitted over the first time interval.

As an embodiment, the first signature sequence is transmitted on one random access occasion in the first period.

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

As an embodiment, the first signature sequence is a Gold sequence.

As an embodiment, the first signature sequence is an M-sequence.

As an embodiment, the first signature sequence is a ZC (zadoff-Chu) sequence.

For one embodiment, the first signature sequence includes a Random Access Preamble (Random Access Preamble).

As an embodiment, the first signature sequence is a Preamble sequence (Preamble).

As an embodiment, the first signature sequence is used to generate the first message.

As an embodiment, the first signature Sequence is sequentially subjected to Sequence Generation (Sequence Generation), discrete fourier transform, modulation (Modulation), resource Element Mapping (Resource Element Mapping), and wideband symbol Generation (Generation) to obtain the first message.

For one embodiment, the first signal is transmitted on a UL-SCH.

As an embodiment, the first signal is transmitted on PUSCH.

As one embodiment, the first signal is transmitted on one shared channel occasion in the first period.

In one embodiment, the first signal is transmitted on a shared channel resource element in the first period.

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

As an embodiment, the first signal includes all or part of an RRC layer signaling.

As an embodiment, the first signal includes one or more fields in one RRC IE.

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

For one embodiment, the first signal includes one or more fields in one MAC CE.

For one embodiment, the first signal includes one or more fields in a PHY layer signaling.

As an embodiment, the first signal includes RRC connection related information.

As one embodiment, the first signal includes Small packet Data (Small Data).

As one embodiment, the first signal includes Control-Plane (C-Plane) information.

As an embodiment, the first signal comprises User-Plane (U-Plane) information.

For one embodiment, the first signal comprises an RRC Message (RRC Message).

For one embodiment, the first signal includes a NAS (Non Access Stratum) message.

As one embodiment, the first signal includes an SDAP (Service Data Adaptation Protocol) Data.

As an embodiment, the first signal is a shared channel load (payload) of MsgA in a random access procedure.

As an embodiment, the first signal is a PUSCH load of MsgA in a random access procedure.

As one embodiment, the first signal is a PUSCH payload of MsgA in random access procedure type-2.

As an embodiment, the first signature sequence is a random access preamble, and the first signal includes RRC connection related information.

As an embodiment, the first signature sequence is a random access preamble, and the first signal includes packet data.

As an embodiment, the first signature sequence is a random access preamble, and the first signal includes control plane information.

As an embodiment, the first signature sequence is a random access preamble, and the first signal includes user plane information.

As an embodiment, the first signature sequence is a random access preamble and the first signal comprises an RRC message.

For one embodiment, the first signature sequence is a random access preamble and the first signal includes SDAP data.

In one embodiment, the first signature sequence is a random access preamble, and the first signal includes a NAS message.

As an embodiment, the first signature sequence is a PRACH preamble of MsgA in random access procedure type-2, and the first signal is a PUSCH payload of MsgA in random access procedure type-2.

As an embodiment, the RRC connection related information includes at least one of a radio resource control setup request, a radio resource control recovery request1, a radio resource control reestablishment request, a radio resource control reconfiguration complete, a radio resource control handover confirmation, and a radio resource control early data request.

As an embodiment, the RRC Connection related information includes at least one of an RRC Connection Request, an RRC Connection Resume Request, an RRC Connection Re-establishment, an RRC Handover configuration confirmation, an RRC Connection Reconfiguration Complete, an RRC Early Data Request, an RRC Setup Request, an RRC Resume Request, an RRC resource control Request1, an RRC Request Reconfiguration Request, an RRC Reconfiguration Complete Request.

As an embodiment, the first bit block comprises a positive integer number of bits, and the first signal comprises all or part of the bits of the first bit block.

As an embodiment, a first block of bits is used to generate the first signal, the first block of bits comprising a positive integer number of bits.

As an embodiment, the first bit block comprises a positive integer number of bits, and all or part of the positive integer number of bits comprised by the first bit block is used for generating the first signal.

As an embodiment, the first bit block includes 1 CW (Codeword).

As an embodiment, the first bit Block includes 1 CB (Code Block).

As an embodiment, the first bit Block includes 1 CBG (Code Block Group).

As an embodiment, the first bit Block includes 1 TB (Transport Block).

As an embodiment, all or a part of bits of the first bit Block sequentially pass through a transport Block level CRC (Cyclic Redundancy Check) Attachment (Attachment), a Code Block Segmentation (Code Block Segmentation), a Code Block level CRC Attachment, a Channel Coding (Channel Coding), a Rate Matching (Rate Matching), a Code Block Concatenation (Code Block Mapping), a scrambling (scrambling), a Modulation (Modulation), a Layer Mapping (Layer Mapping), an Antenna Port Mapping (Antenna Port Mapping), a Mapping to Physical Resource Blocks (Mapping to Physical resources), a Baseband Signal Generation (Baseband Signal Generation), a Modulation and Upconversion (Modulation and Upconversion), and then the first Signal is obtained.

As an embodiment, the first signal is an output of the first bit block after sequentially passing through a Modulation Mapper (Modulation Mapper), a Layer Mapper (Layer Mapper), a Precoding (Precoding), a Resource Element Mapper (Resource Element Mapper), and a multi-carrier symbol Generation (Generation).

As an embodiment, the channel coding is based on polar (polar) codes.

As an example, the channel coding is based on an LDPC (Low-density Parity-Check) code.

As an embodiment, only the first bit block is used for generating the first signal.

As an embodiment, bit blocks other than the first bit block are also used for generating the first signal.

Example 8

Embodiment 8 illustrates a schematic diagram of a relationship between a first signature sequence group, a second signature sequence group and a shared channel resource unit according to an embodiment of the present application, as shown in fig. 8. In fig. 8, diagonal filled squares represent the feature sequences belonging to the first feature sequence group in the present application; the unfilled squares represent the signature sequences belonging to the second signature sequence group in the present application; the rectangles filled with the diagonal squares represent the shared channel resource units in the present application; arrows indicate being associated; the cross-over symbol indicates not being associated.

In embodiment 8, any one of the Q signature sequences belongs to one of the first signature sequence group and the second signature sequence group; any signature sequence in the first set of signature sequences is associated to a shared channel resource element in the first period; any signature sequence in the second set of signature sequences is not associated with any shared channel resource element in the first period.

As an embodiment, the first feature sequence group includes a positive integer number of feature sequences, and the second feature sequence group includes a positive integer number of feature sequences; the positive integer number of signature sequences included in the first signature sequence group belongs to the Q signature sequences, and the positive integer number of signature sequences included in the second signature sequence group belongs to the Q signature sequences.

As an embodiment, any one of the positive integer number of signature sequences included in the first signature sequence group is one of the Q signature sequences.

As an embodiment, any one of the positive integer number of signature sequences included in the second signature sequence group is one of the Q signature sequences.

As an embodiment, any one of the positive integer number of signature sequences comprised in the first signature sequence group is associated to one of the positive integer number of shared channel resource units comprised in the first time period.

As an embodiment, the positive integer number of signature sequences comprised by the first signature sequence group are respectively associated to the positive integer number of shared channel resource elements comprised by the first time period.

As an embodiment, M signature sequences of the positive integer number of signature sequences comprised by the first signature sequence group are associated to one shared channel resource unit of the positive integer number of shared channel resource units comprised by the first time period, M being a positive integer.

As an embodiment, that any one signature sequence of the positive integer number of signature sequences included in the first signature sequence group is associated to one shared channel resource unit in the first period means: when a target signature sequence is transmitted, the target signature sequence is any one of the positive integer number of signature sequences included in the first signature sequence group, one shared channel resource unit in the first period is used for transmitting a target signal, and the target signal and the target signature sequence belong to the same target message.

As an embodiment, when a target signature sequence is transmitted, the target signature sequence being any one of the positive integer number of signature sequences included in the first signature sequence group, the target signature sequence being associated to a target shared channel resource unit, the target shared channel resource unit being one shared channel resource unit in the first period, the target signature sequence and the target shared channel resource unit being separated by a first time interval.

For one embodiment, the first time interval is configurable.

As one embodiment, the first time interval is fixed.

As an embodiment, the first time interval is indicated by higher layer signaling.

As an embodiment, the first time interval is indicated by RRC signaling.

As one embodiment, the first time interval is SIB indicated.

As an embodiment, that any one signature sequence of the positive integer number of signature sequences included in the first signature sequence group is associated to one shared channel resource unit in the first period means: the target message comprises a target characteristic sequence and a target signal, wherein the target characteristic sequence is any one of the positive integer characteristic sequences included in the first characteristic sequence group; the one shared channel resource unit in the first period is used to transmit the target signal when the target signature sequence is transmitted.

As one embodiment, the target message is sent by the first node.

As an embodiment, the target message is a first message in a random access procedure.

As an embodiment, the target message is MsgA in a random access procedure.

As an embodiment, the target message is MsgA in random access procedure type-2.

As an embodiment, the target signature sequence is a random access preamble and the target signal is a shared channel load.

As an embodiment, the target signature sequence is a random access preamble of MsgA in a random access procedure, and the target signal is a shared channel load of MsgA in a random access procedure.

As an embodiment, the target signature sequence is PRACH preamble of MsgA in random access procedure type-2, and the target signal is PUSCH load of MsgA in random access procedure.

As an embodiment, any one of the positive integer number of signature sequences comprised by the second set of signature sequences is not associated to any one of the positive integer number of shared channel resource units comprised by the first time period.

As an embodiment, that any signature sequence in the second signature sequence group is not associated to a shared channel resource unit in the first period means: the target message comprises a target characteristic sequence, and the target characteristic sequence is any one of the positive integer characteristic sequences included in the second characteristic sequence group; when a target signature sequence is transmitted, one shared channel resource unit in the first period is not used for transmitting a target message, and the target signal and the target signature sequence belong to the same target message.

As a sub-embodiment of the above embodiment, the target message does not include the target signal.

As a sub-embodiment of the above embodiment, the target signature sequence is a random access preamble.

As a sub-embodiment of the above embodiment, the target signature sequence is a random access preamble of MsgA in a random access procedure.

As a sub-embodiment of the foregoing embodiment, the target feature sequence is a PRACH preamble of MsgA in the random access procedure type-2.

As an embodiment, the first time period includes the Q signature sequences and N shared channel resource elements, where N is a positive integer.

As an embodiment, the N shared channel resource units are determined by the X shared channel resource groups and the X reference signal resource groups included in the first period in common.

As one embodiment, the N shared channel resource units are indicated by the first signaling group.

As an embodiment, the N shared channel resource elements are indicated by the positive integer number of first type signaling comprised in the first signaling group.

As an embodiment, the N shared channel resource units are indicated in common by at least two of the positive integer number of first type signaling included in the first signaling group.

As an embodiment, the N shared channel resource elements are indicated by both a configuration parameter sent by a PRACH in the first signaling group and a first type of signaling indicating X shared channel occasions in the first period.

As an embodiment, the N shared channel resource units are indicated in common by at least three of the positive integer number of first type signaling included in the first signaling group.

As an embodiment, the N shared channel resource elements are collectively indicated by RACH-ConfigCommon, msgA-PUSCH-Config, and PDCCH-Config in the first signaling group.

As an embodiment, the first signature sequence group includes N1 signature sequence subgroups, any signature sequence subgroup in the N1 signature sequence subgroups includes M signature sequences, the N1 signature sequence subgroups included in the first signature sequence group are respectively associated with N1 shared channel resource units in the first period, M is a positive integer, and N1 is a positive integer no greater than N.

As an embodiment, any shared channel resource unit in the N1 shared channel resource units included in the first time period is associated with one signature sequence subset in the N1 signature sequence subsets included in the first signature sequence group, any signature sequence subset in the N1 signature sequence subsets includes M signature sequences, M is a positive integer, and N1 is a positive integer not greater than N.

As an embodiment, the M = ceiling (Q/N).

As an example, M is the ratio of Q to N rounded up.

As one example, the M is fixed.

As an example, the M is configurable.

As an embodiment, the N1 subsets of signature sequences in the first signature sequence set are sequentially ascending in frequency domain, ascending in reference signal resource index, and then associated to the N1 shared channel resources in the first time period in ascending time domain.

As an embodiment, the N1 subsets of the first set of signature sequences are sequentially ascending according to frequency domain, ascending according to reference signal resource index, ascending according to time domain in a time slot, and finally being associated with the N1 shared channel resources in the first time period in ascending order according to time slot index.

As an embodiment, the positive integer number of signature sequences in the first signature sequence group are sequentially ascending in frequency domain, ascending in reference signal resource index, and then associated to the N1 shared channel resources in the first time period in ascending time domain.

As an embodiment, the transmission of one of the Q signature sequences is atomic (i.e., simultaneous or not) to the transmission on the associated shared channel resource element.

As an embodiment, the time-frequency resource occupied by one of the Q signature sequences is used to determine the time-frequency resource occupied by the associated shared channel resource unit.

Example 9

Embodiment 9 illustrates a schematic diagram of the relationship between the first characteristic-sequence group, the second characteristic-sequence group and Q characteristic sequences according to an embodiment of the present application, as shown in fig. 9. In fig. 9, diagonal filled squares represent the feature sequences belonging to the first feature sequence group in the present application; the unfilled squares represent the signature sequences belonging to the second signature sequence group in the present application; the squares in the dashed boxes represent the signature sequences in the Q signature sequences in this application.

In embodiment 9, any one of the Q feature sequences belongs to the first feature sequence group and the second feature sequence group; the second time interval is subsequent to the first time interval; whether the first signature sequence belongs to the first set of signature sequences or the second set of signature sequences is used for the selection of the second signature sequence.

As one embodiment, the first time interval belongs to the first time period.

As one embodiment, the first time interval includes a RACH.

As one embodiment, the first time interval comprises a PRACH.

As one embodiment, the first time interval comprises NPRACH.

As an embodiment, the first time interval comprises a positive integer number of multicarrier symbols.

As one embodiment, the first time interval includes a plurality of multicarrier symbols.

As one embodiment, the first time interval comprises a positive integer number of subframes.

For one embodiment, the first time interval includes one radio frame.

As an embodiment, the first time interval comprises a positive integer number of ROs (RACH occusion, random access Occasion).

As an embodiment, the first time interval is one RO.

As an embodiment, the first time interval is one RO in the first period.

As an embodiment, the first time interval comprises a positive integer number PRO (PRACH occupancy, physical random access Occasion).

As an embodiment, the first time interval is a PRO.

As an embodiment, the first time interval is one PRO in the first period.

As an embodiment, the first time interval and the second time interval both belong to the first time period.

As an embodiment, the second time interval comprises a RACH.

For one embodiment, the second time interval comprises a PRACH.

As an embodiment, the second time interval comprises NPRACH.

As an embodiment, the second time interval comprises a positive integer number of multicarrier symbols.

As one embodiment, the second time interval includes a plurality of multicarrier symbols.

For one embodiment, the second time interval includes positive integer subframes.

For one embodiment, the second time interval includes one radio frame.

For one embodiment, the second time interval includes a positive integer number of ROs.

As an embodiment, the second time interval is one RO.

As an embodiment, the second time interval is one RO in the first period.

As an embodiment, the second time interval comprises a positive integer number PRO.

As an embodiment, the second time interval is a PRO.

As an embodiment, the second time interval is one PRO in the first period.

As one embodiment, the second time interval is orthogonal in time domain to the first time interval.

As an embodiment, the first time interval is earlier than the first time interval.

As an embodiment, the second time interval is later than the first time interval.

As an embodiment, the second time interval differs from the first time interval by a positive integer number of radio frames.

As an embodiment, the second time interval differs from the first time interval by a positive integer number of subframes.

As an embodiment, the second time interval differs from the first time interval by a plurality of subframes.

As an embodiment, the second time interval differs from the first time interval by a plurality of multicarrier symbols.

As an embodiment, the first time interval and the second time interval are two ROs in the first period, respectively, and the first time interval and the second time interval are orthogonal in a time domain, and the first time interval is earlier than the second time interval.

As an embodiment, the first time interval and the second time interval are two PRO in the first period, respectively, the first time interval and the second time interval are orthogonal in time domain, the first time interval being earlier than the second time interval.

As an embodiment, the second signature sequence is a retransmission of the first message.

As an embodiment, the second message is used to trigger the sending of the second signature sequence.

As an embodiment, the second signature sequence is one of the Q signature sequences.

As an embodiment, the second signature sequence belongs to one of the first signature sequence group and the second signature sequence group.

As an embodiment, the second signature sequence is transmitted over the second time interval.

As an embodiment, the second signature sequence is transmitted on one random access occasion in the first period.

As an embodiment, the first signature sequence and the second signature sequence are transmitted on two random access occasions, respectively.

As an embodiment, the second signature sequence is a pseudo-random sequence.

As an embodiment, the second signature sequence is a Gold sequence.

As an embodiment, the second signature sequence is an M-sequence.

As an embodiment, the second signature sequence is a ZC sequence.

For one embodiment, the second signature sequence comprises a random access preamble.

As an embodiment, the second signature sequence is a preamble sequence.

As an embodiment, the second signature sequence is used to generate a third message.

As an embodiment, the second signature sequence is subjected to sequence generation, discrete fourier transform, modulation and resource element mapping, and wideband symbol generation in sequence, and then the third message is obtained.

For one embodiment, the third message includes a baseband signal.

For one embodiment, the third message includes a radio frequency signal.

For one embodiment, the third message includes a wireless signal.

As an embodiment, the channel occupied by the third message includes a RACH.

As an embodiment, the channel occupied by the third message includes a PRACH.

As an embodiment, the channels occupied by the third message include RACH and UL-SCH.

As an embodiment, the channel occupied by the third message includes a PRACH and a PUSCH.

As an embodiment, the channel occupied by the third message includes NPRACH.

In an embodiment, the third message includes the second signature sequence, and the second signature sequence is a PRACH preamble.

As an embodiment, the third message includes the second signature sequence and a second signal, and the second signature sequence and the second signal are a PRACH preamble and a PUSCH payload, respectively.

As an embodiment, the third message is a first message in a random access procedure.

As an embodiment, the third message is MsgA in a random access procedure.

As an example, the third message is MsgA in random access procedure type-2.

As an embodiment, the third message includes the second signature sequence, the third message does not include the second signal, and the second signature sequence is a PRACH preamble of MsgA in a random access procedure type-2.

As an embodiment, the third message includes the second signature sequence and a second signal, the second signature sequence is a PRACH preamble of MsgA in random access procedure type-2, and the second signal is a PUSCH payload of MsgA in random access procedure type-2.

As an embodiment, when the first feature sequence is one feature sequence in the first feature sequence group, the second feature sequence is one feature sequence in the second feature sequence group.

As an embodiment, when the first feature sequence is one feature sequence in the second feature sequence group, the second feature sequence is one feature sequence in the first feature sequence group.

As an embodiment, when the first feature sequence is one feature sequence in the first feature sequence group, the second feature sequence is selected from the second feature sequence group.

As an embodiment, when the first feature sequence is one feature sequence in the second feature sequence group, the second feature sequence is selected from the first feature sequence group.

Example 10

Embodiment 10 is a schematic diagram illustrating a relationship between a first characteristic-sequence group, a second characteristic-sequence group, and a target-sequence group according to an embodiment of the present application, as shown in fig. 10. In fig. 10, diagonal filled squares in a rectangular box represent the feature sequences belonging to the first feature sequence group in the present application; the unfilled squares in the oval boxes represent the signature sequences belonging to the second signature sequence group in the present application. In case a of fig. 10, a thick solid line box represents that the target sequence group in the present application is the first signature sequence group; in case B of fig. 10, a thick oval represents that the target sequence group is the second feature sequence group.

In embodiment 10, the target sequence group is one of the first feature sequence group and the second feature sequence group; when the first feature sequence belongs to a target sequence group, the second feature sequence is selected from the other one of the first feature sequence group and the second feature sequence group other than the target sequence group.

As an embodiment, the target sequence group is the first feature sequence group.

As an embodiment, the target sequence group is the second characteristic sequence group.

As an embodiment, the first signature sequence is one signature sequence in the target sequence group.

As an embodiment, the first signature sequence is selected from the group of target sequences.

As an embodiment, the first node randomly selects the first feature sequence from the target sequence group.

As an embodiment, the first signature sequence is selected from the set of target sequences with equal probability.

As an embodiment, the probability that the feature sequences in the target sequence group are selected as the first feature sequences is equal.

As an embodiment, when the target sequence group is the first feature sequence group, the second feature sequence is selected from the second feature sequence group; when the target sequence group is the second feature sequence group, the second feature sequence is selected from the first feature sequence group.

As an embodiment, when the target sequence group is the first feature sequence group, the second feature sequence is one feature sequence in the second feature sequence group; when the target sequence group is the second feature sequence group, the second feature sequence is one feature sequence in the first feature sequence group.

As an embodiment, when the second feature sequence is selected from the second feature sequence group, the first node randomly selects the second feature sequence from the second feature sequence group.

As an embodiment, when the second feature sequence is selected from the second feature sequence group, the probability that the feature sequences in the second characteristic sequence group are selected as the second feature sequence is equal.

As an embodiment, when the second feature sequence is selected from the first feature sequence group, the first node randomly selects the second feature sequence from the first feature sequence group.

As an embodiment, when the second feature sequence is selected from the first feature sequence group, the probability that the feature sequences in the first feature sequence group are selected as the second feature sequence is equal.

As an embodiment, the first node is not able to select a signature sequence from the set of target signature sequences consecutively.

Example 11

Embodiment 11 is a schematic diagram illustrating the relationship between L-1 signature sequences and a target sequence group according to an embodiment of the present application, as shown in fig. 11. In fig. 11, squares represent the Q signature sequences in the present application; the diagonal filled squares in the bold solid box represent the characteristic sequences in the target sequence set in this application.

In embodiment 11, the L-1 signature sequences are respectively transmitted in the L-1 time intervals, wherein L is a positive integer greater than 1; the L-1 time intervals are all earlier than the first time interval; the L-1 characteristic sequences all belong to the target sequence group.

As an embodiment, the first node performs L-1 transmissions before the first time interval, L being a positive integer greater than 1 and less than Q; the signature sequence of each of the L-1 transmissions is one of the Q signature sequences; the signature sequence transmitted each time in the L-1 transmissions is not the first signature sequence, and the probability that the first signature sequence is transmitted in the first time interval is 1/(Q + 1-L).

As an embodiment, the L-1 transmissions are the most recent L-1 transmissions of the contention-based RACH preamble by the first node.

As an embodiment, the L-1 transmissions are the most recent (latest) L-1 contention-based PRACH preamble transmissions by the first node.

In a sub-embodiment of the above embodiment, the first node cannot select the signature sequence from the target sequence group more than L times consecutively.

As an example, the L-1 signature sequences all belong to the Q signature sequences.

As an embodiment, any one of the L-1 signature sequences is one of the Q signature sequences.

As an embodiment, any one of the L-1 signature sequences is selected by the first node from the target sequence group.

As an embodiment, the L-1 signature sequences and the first signature sequence both belong to the target sequence group.

As an embodiment, when the target sequence group is the first feature sequence group, the L-1 feature sequences and the first feature sequence both belong to the first feature sequence group.

As an embodiment, when the target sequence group is the second feature sequence group, the L-1 feature sequences and the first feature sequence both belong to the second feature sequence group.

As an embodiment, the L-1 signature sequences and the first signature sequence both belong to the first signature sequence group, and the second signature sequence belongs to the second signature sequence group.

As an embodiment, the L-1 signature sequences and the first signature sequence both belong to the second signature sequence group, and the second signature sequence belongs to the first signature sequence group.

As an embodiment, the first node sequentially sends L-1 first type messages, and any one of the L-1 first type messages is a first message of a random access procedure.

As an embodiment, the first node sequentially sends L-1 first-type messages, and any one of the L-1 first-type messages is MsgA of a random access procedure.

As an embodiment, the first node sequentially sends L-1 first-type messages, and any one of the L-1 first-type messages is MsgA of a random access procedure type-2.

As an embodiment, the L-1 messages of the first type respectively comprise the L-1 characteristic sequences.

As an embodiment, the L-1 signature sequences respectively generate the L-1 first-type messages.

As one embodiment, any two of the L-1 time intervals do not overlap.

As an embodiment, any two time intervals of the L-1 time intervals are orthogonal in the time domain.

As an embodiment, said L-1 time intervals all belong to said first period.

As an embodiment, any of the L-1 time intervals comprises a PRACH.

As an embodiment, any one of the L-1 time intervals comprises a positive integer number of multicarrier symbols.

As an embodiment, any one of the L-1 time intervals includes a plurality of multicarrier symbols.

As an embodiment, any one of the L-1 time intervals includes a positive integer number of ROs.

As an embodiment, any one of the L-1 time intervals is one RO in the first period.

As an embodiment, any one of the L-1 time intervals includes a positive integer number of PRO.

As an embodiment, any one of the L-1 time intervals is a PRO in the first period.

As an embodiment, the L is base station configured.

As an embodiment, the L is fixed.

As an embodiment, the first signaling group explicitly indicates the L.

As an example, the first characteristic sequence group and the second characteristic sequence group include Q1 characteristic sequences and Q2 characteristic sequences, respectively, the Q1 and the Q2 are positive integers, respectively, and the L depends on the Q1 and the Q2.

As an example, the sum of Q1 and Q2 is equal to Q.

As an embodiment, the target sequence group is the first signature sequence group, and the L increases as Q1/Q2 increases.

As a sub-embodiment of the above embodiment, L is the smallest positive integer no less than Q1/Q2.

As a sub-embodiment of the above embodiment, L is not less than T times the smallest positive integer of Q1/Q2, and T is a positive integer greater than 1.

As an embodiment, the target sequence group is the second characteristic sequence group, and the L increases as Q2/Q1 increases.

As a sub-embodiment of the above embodiment, L is the smallest positive integer no less than Q2/Q1.

As a sub-embodiment of the above embodiment, L is not less than T times the smallest positive integer of Q2/Q1, and T is a positive integer greater than 1.

As an embodiment, the T is fixed.

As one example, the T is configurable.

Example 12

Embodiment 12 illustrates a schematic diagram of the relationship between the first time interval, the second time interval and the first time window according to an embodiment of the present application, as shown in fig. 12. In fig. 12, diagonal filled squares represent the feature sequences belonging to the first feature sequence group in the present application; the unfilled squares represent the signature sequences belonging to the second signature sequence group in the present application; the rectangle represents the second message in this application.

In example 12, the first time window is between the first time interval and the second time interval; the second message is used to determine that the first signature sequence was correctly received; the second message is monitored during the first time window, the second message not being detected being used to trigger transmission of the second signature sequence.

As an embodiment, the first time window is subsequent to the first time interval and the first time window is prior to the second time interval.

As one embodiment, the first time window comprises a positive integer number of subframes.

For one embodiment, the first time window includes a positive integer number of time slots.

As one embodiment, the first time window includes a plurality of multicarrier symbols.

As an embodiment, a start time of the first time window differs from the first time interval by a first time offset.

As an embodiment, a start time of the first time window differs from an end time of the first time interval by a first time offset.

As an embodiment, the first time offset comprises a positive integer number of multicarrier symbols.

As one embodiment, the first time offset includes a positive integer number of slots.

As an embodiment, the time length of the first time window in the time domain is indicated by the first signaling group.

As an embodiment, the first time window comprises the positive integer number of slots as indicated by the first signaling group.

As an embodiment, the first time offset is indicated by the first signaling group.

As an embodiment, the first time offset comprises the number of positive integer number of multicarrier symbols being indicated by the first signalling group.

For one embodiment, the second message includes a baseband signal.

For one embodiment, the second message comprises a radio frequency signal.

For one embodiment, the second message includes a wireless signal.

As an embodiment, the Channel occupied by the second message includes a PDCCH (Physical Downlink Control Channel).

As an embodiment, the Channel occupied by the second message includes a PDCCH and a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the second message includes DCI (Downlink Control Information).

As an embodiment, the second message includes an RAR (Random Access Response).

For an embodiment, the second message includes success rar.

For one embodiment, the second message includes a fallback rar.

For one embodiment, the definition of success rar refers to 3gpp ts38.321.

For one embodiment, the definition of fallback rar refers to 3gpp ts38.321.

As one embodiment, the second message includes DCI and RAR.

For one embodiment, the second message comprises a Timing Advance Command (Timing Advance Command).

As an embodiment, the second message includes an Uplink Grant (Uplink Grant).

As an embodiment, the second message includes TC-RNTI (Temporary Cell radio network Temporary identity).

As an embodiment, the first message is a first message of a random access procedure, and the second message is a second message of the random access procedure.

As an embodiment, the first Message is MsgA of random access flow type-2 and the second Message is MsgB of random access flow type-2 (Message B).

As an embodiment, the second message includes all or part of a MAC (Multimedia Access Control) layer signaling.

As an embodiment, the second message includes one or more fields in a MAC CE (Control Element).

As an embodiment, the second message includes one or more fields in one MAC PDU (Protocol Data Unit).

As an embodiment, the second message is a MAC PDU.

As an embodiment, the second message is a MAC Sub pdu (Sub Protocol Data Unit).

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

For one embodiment, the second message includes one or more fields in a PHY (Physical) layer.

As an embodiment, the second message carries a positive integer number of first class identifiers.

As an embodiment, the second message carries a positive integer number of second class identifiers.

As an embodiment, the second message carries a positive integer number of the first class identifiers and a positive integer number of the second class identifiers.

As an embodiment, the second message does not carry any first-class identifier, and the second message carries a positive integer number of second-class identifiers.

As an embodiment, the second message carries a positive integer number of the first class identifiers, and the second message does not carry any second class identifier.

As an embodiment, the second message includes a positive integer number of MAC sub-pdus, where at least one MAC sub-pdu of the positive integer number of MAC sub-pdus carries one first class identifier of the positive integer number of first class identifiers or one second class identifier of the positive integer number of second class identifiers.

As an embodiment, the second message includes a positive integer number of MAC subpdus, and at least one MAC subPDU in the positive integer number of MAC subpdus carries one first class identifier in the positive integer number of first class identifiers.

As an embodiment, the second message includes a positive integer number of MAC sub-pdus, and at least one MAC sub-pdu of the positive integer number of MAC sub-pdus carries one first class identifier of the positive integer number of second class identifiers.

As an embodiment, the second message includes one MAC sub pdu, where the one MAC sub pdu includes one MAC sub header (subheader), and the one MAC sub header carries one first class identifier of the positive integer number of first class identifiers.

As an embodiment, the second message includes a positive integer number of MAC subpdus, at least one MAC subPDU in the positive integer number of MAC subpdus includes one MAC subheader and one MAC RAR, and the one MAC RAR carries one second type identifier in the positive integer number of second type identifiers.

As an embodiment, the second message includes one MAC sub pdu, where the one MAC sub pdu includes one MAC sub header and one MAC RAR, and the one MAC sub header carries one first class identifier of the positive integer number of first class identifiers.

As an embodiment, the second message includes one MAC PDU, where the one MAC PDU includes one MAC subheader and one MAC RAR, and the one MAC subheader carries one first class identifier of the positive integer number of first class identifiers.

As an embodiment, at least one of the positive integer number of first class identifiers carried in the second message is used to identify one of the Q feature sequences.

As an embodiment, at least one first class identifier of the positive integer number of first class identifiers carried in the second message is a Random Access Preamble Identity (Random Access Preamble Identity).

As an embodiment, at least one of the positive integer number of first class identifiers carried in the second message is an Extended RAPID.

As an embodiment, at least one of the positive integer number of second type identifiers carried by the second message is a TC-RNTI (Temporary Cell-RNTI).

As an embodiment, at least one of the positive integer number of second type identifiers carried by the second message is a C-RNTI (Cell-RNTI, cell radio network temporary identifier).

As an embodiment, at least one of the positive integer first class identifiers carried in the second message is a positive integer.

As an embodiment, at least one of the positive integer numbers of first class identifiers carried in the second message is a positive integer from 1 to 64.

As an embodiment, at least one of the positive integer numbers of first class identifiers carried in the second message is a positive integer from 0 to 63.

As an embodiment, at least one of the positive integer number of second class identifiers carried by the second message includes a positive integer number of bits.

As an embodiment, at least one of the positive integer number of second class identifiers carried by the second message includes 8 bits.

As an embodiment, the first identifier carried in the first message is one of the positive integer number of first class identifiers carried in the second message.

As an embodiment, the second identifier carried in the first message is one of the positive integer number of second class identifiers carried in the second message.

As an embodiment, the first identifier indicated by the first signature sequence is one of the positive integer number of first class identifiers carried in the second message.

As an embodiment, the second identifier included in the first signal is one of the positive integer number of second class identifiers carried in the second message.

As an embodiment, the first identifier carried in the first message is one of the positive integer numbers of first class identifiers carried in the second message, and the second identifier carried in the first message is one of the positive integer numbers of second class identifiers carried in the second message.

As an embodiment, the monitoring refers to receiving based on blind detection, that is, the first node receives a signal in the first time window and performs a decoding operation, and if it is determined that the decoding is correct according to CRC bits, it is determined that the second message is detected in the first time window; otherwise, the second message is not detected in the first time window.

As an embodiment, the monitoring refers to receiving based on coherent detection, that is, the first node performs coherent reception on a wireless signal in the first time window by using an RS sequence corresponding to the DMRS of the second message, and measures energy of a signal obtained after the coherent reception; if the energy of the signal obtained after the coherent reception is greater than a first given threshold value, judging that the second message is detected in the first time window; otherwise, the second message is not detected in the first time window.

As an embodiment, the monitoring refers to receiving based on energy detection, that is, the first node senses (Sense) the energy of the wireless signal within the first time window and averages over time to obtain the received energy; if the received energy is greater than a second given threshold, determining that the second message is detected within the first time window; otherwise, the second message is not detected in the first time window.

As an embodiment, the second message is detected, that is, the second message is received based on blind detection, and then decoding is determined to be correct according to CRC bits.

As an embodiment, it is determined that the first signature sequence is correctly received when the second message is detected in the first time window.

As an embodiment, it is determined that the first signature sequence was not correctly received when the second message was not detected in the first time window.

As an embodiment, when the second message is not detected in the first time window, it is determined that the first message was not correctly received.

As an embodiment, the second signature sequence is sent when the second message is not detected in the first time window.

As an embodiment, the second signature sequence is sent over the second time interval when the first node does not detect the second message within the first time window.

As an embodiment, the first node sends the second signature sequence in the second time interval when the second message is not detected in the first time window.

Example 13

Embodiment 13 is a block diagram illustrating a processing apparatus used in a first node device, as shown in fig. 13. In embodiment 13, the first node apparatus processing device 1300 is mainly composed of a first receiver 1301 and a first transmitter 1302.

For one embodiment, the first receiver 1301 includes at least one of the antenna 452, the transmitter/receiver 454, the multiple antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4.

For one embodiment, the first transmitter 1302 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

In embodiment 13, the first receiver 1301 receives a first signaling group, where the first signaling group is used to indicate a first characteristic sequence group and a second characteristic sequence group; the first transmitter 1302 selecting a first signature sequence from the Q signature sequences, transmitting the first signature sequence in a first time interval; selecting a second signature sequence from the Q signature sequences, the second signature sequence being transmitted in a second time interval; any one of the Q feature sequences belongs to one of the first feature sequence group and the second feature sequence group; the second time interval is subsequent to the first time interval; whether the first signature sequence belongs to the first set of signature sequences or the second set of signature sequences is used for selection of the second signature sequence; any signature sequence in the first set of signature sequences is associated with a shared channel resource element in a first period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1.

As an embodiment, when the first feature sequence belongs to a target sequence group, the second feature sequence is selected from the other one of the first feature sequence group and the second feature sequence group other than the target sequence group, the target sequence group belonging to one of the first feature sequence group and the second feature sequence group.

For one embodiment, the first transmitter 1302 transmits L-1 signature sequences in L-1 time intervals, respectively; l is a positive integer greater than 1, the L-1 time intervals all precede the first time interval; the L-1 characteristic sequences all belong to the target characteristic sequence group.

As an embodiment, the first signaling group indicates the L.

For one embodiment, the first receiver 1301 monitors a first time window for a second message; the first time window is between the first time interval and the second time interval; the second message is used to determine that the first signature sequence was received correctly; the second message not being detected is used to trigger the sending of the second signature sequence.

As an embodiment, the target set of feature sequences is the first set of feature sequences.

As an embodiment, the target set of feature sequences is the second set of feature sequences.

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

As an embodiment, the first node apparatus 1300 is a relay node.

For one embodiment, the first node apparatus 1300 is a base station.

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 equipment in this application includes but not limited to cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, aircraft, unmanned aerial vehicle, wireless communication equipment such as telecontrolled aircraft. The second node device in this application includes but not limited to cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, aircraft, unmanned aerial vehicle, wireless communication equipment such as telecontrolled aircraft. User equipment or UE or terminal 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, aircraft, unmanned aerial vehicle, wireless communication equipment such as remote control aircraft. The base station device, the base station or the network side 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, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, 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 transmitter that selects a first signature sequence from the Q signature sequences and transmits the first signature sequence in a first time interval; selecting a second signature sequence from the Q signature sequences, the second signature sequence being transmitted in a second time interval, Q being a positive integer greater than 1;

wherein any one of the Q signature sequences belongs to one of the first signature sequence group and the second signature sequence group; the second time interval is subsequent to the first time interval; any signature sequence in the first set of signature sequences is associated with a shared channel resource element in a first time period, and any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first time period; the first feature sequence belongs to a target sequence group, the second feature sequence is selected from the other one of the first feature sequence group and the second feature sequence group except for the target sequence group, and the target sequence group belongs to one of the first feature sequence group and the second feature sequence group.

2. The first node of claim 1, comprising:

the first transmitter is used for respectively transmitting L-1 characteristic sequences in L-1 time intervals;

wherein L is a positive integer greater than 1, said L-1 time intervals all preceding said first time interval; the L-1 characteristic sequences all belong to the target sequence group.

3. The first node of claim 2, wherein the first signaling group indicates the L.

4. The first node according to any of claims 1 to 3, comprising:

the first receiver monitors a first time window for a first message;

wherein the first time window is between the first time interval and the second time interval; the second message is used to determine that the first signature sequence was received correctly; the second message not being detected is used to trigger the sending of the second signature sequence.

5. The first node according to any one of claims 1 to 3, wherein the target sequence group is the first characteristic sequence group or the target sequence group is the second characteristic sequence group.

6. The first node according to claim 4, wherein the target sequence group is the first signature sequence group or the target sequence group is the second signature sequence group.

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

a second receiver that detects a first signature sequence in a first time interval; detecting the second signature sequence in a second time interval;

wherein the first and second signature sequences are two signature sequences of Q signature sequences, respectively; any one of the Q characteristic sequences belongs to one of the first characteristic sequence group and the second characteristic sequence group; the second time interval is subsequent to the first time interval; any signature sequence in the first set of signature sequences is associated to a shared channel resource element in a first time period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1; the first feature sequence belongs to a target sequence group, the second feature sequence belongs to the other of the first feature sequence group and the second feature sequence group except for the target sequence group, and the target sequence group belongs to one of the first feature sequence group and the second feature sequence group.

8. A method of a first node used for wireless communication, comprising:

selecting a first signature sequence from the Q signature sequences, the first signature sequence being transmitted in a first time interval; selecting a second signature sequence from the Q signature sequences, the second signature sequence being transmitted in a second time interval, Q being a positive integer greater than 1;

wherein any one of the Q signature sequences belongs to one of the first signature sequence group and the second signature sequence group; the second time interval is subsequent to the first time interval; any signature sequence in the first set of signature sequences is associated with a shared channel resource element in a first time period, and any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first time period; when the first feature sequence belongs to a target sequence group, the second feature sequence belongs to the other of the first feature sequence group and the second feature sequence group except for the target sequence group, and the target sequence group belongs to one of the first feature sequence group and the second feature sequence group.

9. A method of a second node used for wireless communication, comprising:

detecting a first signature sequence in a first time interval; detecting the second signature sequence in a second time interval;

wherein the first and second signature sequences are two signature sequences of Q signature sequences, respectively; any one of the Q feature sequences belongs to one of the first feature sequence group and the second feature sequence group; the second time interval is subsequent to the first time interval; any signature sequence in the first set of signature sequences is associated to a shared channel resource element in a first time period; any signature sequence in the second set of signature sequences is not associated with a shared channel resource element in the first period; q is a positive integer greater than 1; the first feature sequence belongs to a target sequence group, the second feature sequence belongs to the other of the first feature sequence group and the second feature sequence group except for the target sequence group, and the target sequence group belongs to one of the first feature sequence group and the second feature sequence group.