CN113141240B

CN113141240B - Method and device used in node of wireless communication

Info

Publication number: CN113141240B
Application number: CN202010051602.5A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2022-10-28
Anticipated expiration: 2040-01-17
Also published as: CN113141240A

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The first node firstly receives the first signal, secondly sends K1 first-class signals, then receives the second signal and sends K2 second-class signals; the first signal determines a first channel quality, the first channel quality determining the K1; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, both the first field and the K1 being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access. The value of K2 is determined through the first domain, so that the random access process is optimized, and the system performance is improved.

Description

Method and device used in node of wireless communication

Technical Field

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

Background

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

In order to be able to adapt to various application scenarios and meet different requirements, a research project of Non-Terrestrial Networks (NTN) under NR was also passed on the 3gpp ran # 75-time global meeting, which started at version R15. The decision to start the study of solutions in NTN networks was made on the 3gpp ran # 79-time global meeting, and then WI was started in release R16 or R17 to standardize the related art. Meanwhile, the NTN system also supports NB-IOT (Narrowband Internet of Things) terminals.

Disclosure of Invention

In a conventional NB-IoT system, a user equipment determines a CE Level (Coverage Enhancement Level) according to a Channel quality detected by the user equipment, and determines a repetition number when a PRACH (Physical Random Access Channel) is transmitted according to the CE Level; and when the transmission of the PRACH does not receive an RAR Response from the base station (Random Access Response), the terminal determines a Backoff time according to a Backoff Indicator (BI) indicated in the RAR, and then continues the transmission.

In the NTN system supporting NB-IOT, because the transmission delay between the base station and the UE is large, and the channel quality detected by the terminal side is not necessarily very correct, the repetition times that the terminal selects by itself according to the channel quality may not necessarily ensure that the PRACH is correctly received by the base station.

In view of the above, the present application provides a solution. It should be noted that, in case of no conflict, the embodiments and features in the embodiments in the first node of the present application may be applied to the second node, and vice versa. Further, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.

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

receiving a first signal;

transmitting K1 first-type signals;

receiving a second signal;

transmitting K2 second-class signals;

wherein the first signal is used to determine a first channel quality, which is used to determine the K1; the K1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, both the first field and the K1 being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access.

As an example, the above method has the benefits of: the repeat times of the first node during retransmission are dynamically adjusted through the RAR, so that the PRACH performance of the narrowband user is improved.

As an example, another benefit of the above method is that: and determining the value of K2 by combining the original times of the repeated transmission of K1 so as to save signaling overhead.

According to an aspect of the application, the first channel quality is used to determine a first rank, which is used to determine the K1; the first domain and the first rank are used to determine a second rank, which is used to determine the K2.

As an example, the above method has the benefits of: the method does not change the existing mode of determining the repetition times through the CE Level, only one offset indication is added, and the signaling overhead in the RAR is saved.

According to an aspect of the application, the method in the first node comprises:

receiving a first signaling;

wherein the first signaling is used to determine a first pool of time-frequency resources; the K1 first-class signals respectively occupy K1 first-class time-frequency resource sets, and the K2 second-class signals respectively occupy K2 second-class time-frequency resource sets; the K1 first-class time frequency resource sets and the K2 second-class time frequency resource sets belong to a first time frequency resource pool.

As an example, the above method has the benefits of: when the original terminal changes the repetition times of the PRACH through the channel quality, the resources of the NPRACH are changed; the method only changes the repetition times, does not change NPRACH resources, and further does not need to configure a set of new time-frequency resources for the method.

receiving first information;

wherein the first information is used to determine that the second signal includes the first domain.

As an example, the above method has the benefits of: whether the second signal includes the first domain is configurable, thereby improving compatibility of the system.

receiving second information;

wherein the second information relates to a first length of time; the second signal includes a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold.

As an example, the above method has the benefits of: the above scheme is effective only when the transmission delay is large, i.e. the base station is far away from the ground, so as to deal with the problem of PRACH collision caused by too large transmission delay.

According to an aspect of the application, any one of the K1 first-type signals includes M1 first-type sub-signals; the M1 first-type sub-signals respectively occupy M1 orthogonal multicarrier symbols in a time domain, and the M1 first-type sub-signals respectively occupy M1 orthogonal subcarriers in a frequency domain.

According to an aspect of the application, any one of the K2 second-type signals includes M2 second-type sub-signals; the M2 second-type sub-signals respectively occupy M2 orthogonal multicarrier symbols in a time domain, and the M2 second-type sub-signals respectively occupy M2 orthogonal subcarriers in a frequency domain.

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

transmitting a first signal;

receiving K1 first-type signals;

transmitting a second signal;

receiving K2 second-class signals;

According to an aspect of the application, the method in the second node comprises:

sending a first signaling;

wherein the first signaling is used to determine a first pool of time-frequency resources; the K1 first-class signals respectively occupy K1 first-class time-frequency resource sets, and the K2 second-class signals respectively occupy K2 second-class time-frequency resource sets; the K1 first-class time-frequency resource sets and the K2 second-class time-frequency resource sets both belong to a first time-frequency resource pool.

sending first information;

sending the second information;

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

a first receiver receiving a first signal;

a first transmitter for transmitting K1 first type signals;

a second receiver receiving a second signal;

a second transmitter for transmitting the K2 second-type signals;

wherein the first signal is used to determine a first channel quality, which is used to determine the K1; the K1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, the first field and the K1 both being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access.

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

a third transmitter that transmits the first signal;

a third receiver for receiving K1 first-type signals;

a fourth transmitter that transmits the second signal;

a fourth receiver for receiving K2 second-type signals;

wherein the first signal is used to determine a first channel quality, which is used to determine the K1; k1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, the first field and the K1 both being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access.

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

dynamically adjusting the repetition times of the first node during retransmission through the RAR so as to improve the performance of the PRACH (physical random access channel) of the narrowband user; and the value of K2 is determined by combining the original times of K1 repeated transmission, so as to save signaling overhead;

the method does not change the existing mode of determining the repetition times through CE Level, only adds one offset indication, and saves signaling overhead in RAR;

whether the second signal comprises the first domain is configurable, thereby improving system compatibility; the above scheme is only effective when the transmission delay is large, that is, the base station is far away from the ground, so as to solve the problem of PRACH collision caused by too large transmission delay.

Drawings

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

FIG. 1 illustrates a process flow diagram of a first node according to one embodiment of the present application;

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

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

fig. 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the application;

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

FIG. 6 shows a schematic diagram of K1 signals of a first type according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of K2 second class signals according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of a second signal according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of timing relationships according to one embodiment of the present application;

FIG. 10 shows a block diagram of a structure used in a first node according to an embodiment of the present application;

fig. 11 shows a block diagram of a structure used in a second node according to an embodiment of the present application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives a first signal in step 101; transmitting K1 first type signals in step 102; receiving a second signal in step 103; in step 104K 2 signals of the second type are transmitted.

In embodiment 1, the first signal is used to determine a first channel quality, which is used to determine the K1; the K1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, both the first field and the K1 being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access.

For one embodiment, the first signal includes a reference signal.

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

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

As one embodiment, the first Signal includes a CSI-RS (Channel State Information Reference Signal).

As one embodiment, the first node determines the first channel quality from measurements for the first signal.

For one embodiment, the first channel quality comprises RSRP (Reference Signal Receiver Power).

For one embodiment, the first channel Quality comprises RSRQ (Reference Signal Receiver Quality).

As an embodiment, the first channel quality comprises RSSI (Received Signal Strength Indicator).

For one embodiment, the first channel quality comprises a Signal-to-Noise Ratio (SNR).

As an embodiment, the first channel quality is in dBm (millidecibels).

As an embodiment, the unit of the first channel quality is dB (decibel).

As an example, K1 is equal to 1.

As an example, K1 is a positive integer greater than 1.

For one embodiment, the first channel quality is used by the first node to determine the K1.

As an embodiment, the first channel quality is used to determine an enhanced Coverage Level (Coverage Enhancement Level) used to determine the K1.

As one embodiment, the first sequence is a binary full "1" sequence.

As an embodiment, the K1 first type signals are all used for random access.

As an embodiment, the first sequence is used to generate Q modulation symbols, which are used to generate any one of the K1 first type signals, and any two of the Q modulation symbols are the same; q is a positive integer greater than 1.

As an embodiment, the K1 first type signals are K1 repeated transmissions.

As an embodiment, the K1 first type signals are K1 repeated transmissions of the first sequence.

As an embodiment, the physical layer channel carrying the K1 first type signals includes PRACH.

As an embodiment, the first identifier is a Preamble Index.

As one embodiment, the first identification is a non-negative integer.

As an embodiment, the first identifier is a Preamble Index (Preamble Index).

As an embodiment, the first identifier is PREAMBLE INDEX in TS 38.321.

As an embodiment, the phrase that the frequency domain resources occupied by the K1 first-type signals are used to determine the first identifier includes: the frequency domain position of the subcarrier occupied by the first signal in the time domain among the K1 first signals is used for determining the first identifier.

As an embodiment, the phrase that the frequency domain resources occupied by the K1 first-type signals are used to determine the meaning of the first identifier includes: a first-class signal in the time domain among the K1 first-class signals is a target first-class signal, the target first-class signal includes M1 target first-class sub-signals, and a frequency domain position of a subcarrier occupied by a target first-class sub-signal in the earliest time domain among the M1 target first-class sub-signals is used to determine the first identifier.

As an embodiment, the phrase that the time domain resources occupied by the K1 first-type signals are used to determine the meaning of the second identifier includes: and the index of a first system frame occupied by a first type signal positioned in the time domain in the K1 first type signals is used for determining the second identifier.

As an embodiment, the phrase that the time domain resources occupied by the K1 first-type signals are used to determine the meaning of the second identifier includes: a first one of the K1 first-type signals located in the time domain is a target first-type signal, the target first-type signal includes M1 target first-type sub-signals, and an index of a first system frame occupied by a target first-type sub-signal that is earliest in the time domain among the M1 target first-type sub-signals is used to determine the second identifier.

As an embodiment, the second Identifier is RA-RNTI (Random Access Radio Network Temporary Identifier).

As an embodiment, the second signal is a RAR.

As an example, the second signal is Msg 2 (message 2).

As an embodiment, the Physical layer Channel carrying the second signal includes a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the Physical layer Channel carrying the second signal includes a PDCCH (Physical Downlink Control Channel).

As an embodiment, the above phrase that the second signal carries the meaning of the second identifier includes: the second signal includes a first sub-signal and a second sub-signal, a physical layer channel carrying the first sub-signal is a PDCCH, a physical layer channel carrying the second sub-signal is a PDSCH, and a Cyclic Redundancy Check (CRC) carried by the first sub-signal is scrambled by the second identifier.

As an embodiment, the above phrase that the second signal carries the meaning of the second identifier includes: a CRC included in a PDCCH scheduling the second signal is scrambled by the second identity.

As an embodiment, the above phrase that the second signal does not carry the first identifier means that: the second signal does not carry any RAPID Access Preamble ID (Random Access Preamble ID).

As an embodiment, the above phrase that the second signal does not carry the first identifier means that: the second signal carries a RAPID, and the RAPID is different from the first identifier.

As an embodiment, the above phrase that the second signal does not carry the first identifier means that: the second signal carries a plurality of RAPID, and any one of the plurality of RAPID is different from the first identifier.

As an embodiment, the second signal is a feedback for the K1 first type signals.

As an embodiment, the physical layer channel carrying the K2 second type signals is a PRACH.

As an embodiment, the K2 second type signals are all used to initiate random access.

As an embodiment, the first identifier is different from the second identifier, the first node determines that the random access initiated by the first signal fails, and the first node re-initiates the random access.

As an embodiment, the first field is a field in a MAC (Medium Access Control) sub-header.

As an embodiment, the second signal is a MAC PDU (Protocol Data Unit).

As an embodiment, the first field belongs to one MAC sub pdu (sub protocol data unit).

As an embodiment, any one of the K1 first-type signals is a wireless signal.

As an embodiment, any one of the K1 first-type signals is a baseband signal.

As an embodiment, any one of the K2 second-type signals is a wireless signal.

As an embodiment, any one of the K2 second-type signals is a baseband signal.

As an example, the first Field is a Header Field (Header Field) in a MAC Header.

As an embodiment, the K1 first-type signals and the K2 second-type signals use the same transmission power value.

As an embodiment, the first field indicates a first integer, and a sum of the first integer and the K1 is equal to the K2.

As an embodiment, the first field indicates a first integer, and the difference between the K1 and the first integer is equal to the K2.

As an embodiment, the K1 first type signals are all used to initiate random access.

As an embodiment, the second signal is a Response (Response) to the K1 first type signals.

As an embodiment, the first node in this application is in an RRC _ IDLE state from when the first node starts to send the K1 first-type signals to when the first node sends the K2 second-type signals.

As an embodiment, the first node in this application is always in an uplink out-of-step state from when the first node starts to send the K1 first-type signals to when the first node sends the K2 second-type signals.

As an embodiment, the K1 first-type signals include preambles in four-step random access.

As an embodiment, the K1 first-type signals include Msg 1 (message 1) in a four-step RACH.

As an embodiment, the second signal comprises Msg 2 (message 2) in a four-step RACH.

Example 2

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

FIG. 2 illustrates a diagram of a network architecture 200 for 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 EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, ng-RANs (next generation radio access networks) 202, epcs (Evolved Packet Core)/5G-CNs (5G-Core Network,5G Core Network) 210, hss (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the EPC/5G-CN 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the EPC/5G-CN 210 via an S1/NG interface. The EPC/5G-CN 210 includes an MME (Mobility Management entity)/AMF (Authentication Management Field)/UPF (User Plane Function) 211, other MMEs/AMFs/UPFs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213.MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

As an embodiment, the UE201 is a narrowband physical network terminal.

As an embodiment, the uplink transmission bandwidth of the UE201 is not greater than 180kHz.

As an embodiment, the radio frequency capability of the UE201 is not greater than 180kHz.

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

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

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

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

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

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

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

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

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

As an example, the gNB203 is connected to the core network through a ground station.

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

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

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

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

As one example, the first node has a Capability of Pre-Compensation (Pre-Compensation).

For one embodiment, the first node has uplink synchronization pre-compensation capability.

For one embodiment, the first node has the capability of self-estimating uplink TA (Timing Advance).

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gNB or V2X) and a second communication node device (gNB, RSU in UE or V2X) in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for a link between the first communication node device and the second communication node device through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets, and the PDCP sublayer 304 also provides handover support for a first communication node device to a second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. 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 communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices 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 communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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

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

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

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

For one embodiment, the first signal is generated at the MAC352 or the MAC302.

As an embodiment, the first signal is generated at the RRC306.

As an embodiment, any one of the K1 first type signals is generated in the PHY301 or the PHY351.

As an embodiment, any one of the K1 first-type signals is generated in the MAC352 or the MAC302.

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

For one embodiment, the second signal is generated at the MAC352 or the MAC302.

For one embodiment, any one of the K2 second type signals is generated in the PHY301 or the PHY351.

As an embodiment, any one of the K2 second type signals is generated in the MAC352 or the MAC302.

As an embodiment, the first information is generated at the RRC306.

For one embodiment, the first information is generated in the MAC352 or the MAC302.

For one embodiment, the first information is generated in the PHY301 or the PHY351.

As an embodiment, the second information is generated in the RRC306.

For one embodiment, the second information is generated in the MAC352 or the MAC302.

For one embodiment, the second information is generated in the PHY301 or the PHY351.

As an embodiment, the second node in this application sends a positioning signal, and the first node in this application receives a positioning signal.

As a sub-embodiment of this embodiment, it is SMLC (Serving Mobile Location center) that triggers the sending of the positioning signal.

As a sub-embodiment of this embodiment, it is E-SMLC (Evolved Serving Mobile Location center) that triggers the sending of the positioning signal.

As a sub-embodiment of this embodiment, it is SLP (SUPL Location Platform) that triggers the sending of the Location signal; wherein SUPL is Secure User Plane Location.

As a sub-embodiment of this embodiment, it is LMU (Location Measurement Unit) that triggers the sending of the Location signal.

As a sub-embodiment of this embodiment, the operation triggering the sending of the positioning signal comes from the core network.

Example 4

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

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

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

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

In a transmission from the second communications apparatus 410 to the first communications apparatus 450, each receiver 454 receives a signal through its respective antenna 452 at the first communications apparatus 450. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol 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 first communication device 450. The symbols on each spatial stream are demodulated and recovered at a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication 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 second communications device 410 to the second communications device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

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

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

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, the first communication device 450 apparatus at least: receiving a first signal, sending K1 first-class signals, receiving a second signal, and sending K2 second-class signals; the first signal is used to determine a first channel quality, which is used to determine the K1; k1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, the first field and the K1 both being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving first signals, sending K1 first-type signals, receiving second signals, and sending K2 second-type signals; the first signal is used to determine a first channel quality, which is used to determine the K1; the K1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, both the first field and the K1 being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: sending a first signal, receiving K1 first-type signals, sending a second signal, and receiving K2 second-type signals; the first signal is used to determine a first channel quality, which is used to determine the K1; k1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, both the first field and the K1 being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending a first signal, receiving K1 first-type signals, sending a second signal, and receiving K2 second-type signals; the first signal is used to determine a first channel quality, which is used to determine the K1; k1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, the first field and the K1 both being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access.

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

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 is a narrowband physical network terminal.

For one embodiment, the first communication device 450 supports narrowband physical network services.

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

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

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

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

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

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

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

As an example, the second communication device 410 is a HAPS (High Altitude Platform Station)

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

As one implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 are configured to transmit K1 signals of a first type in a first set of time-frequency resources; at least the first four of the antennas 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 are configured to receive K1 signals of a first type in a first set of time and frequency resources.

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

As one implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 are used to send K2 signals of the second type; at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 are configured to receive K2 signals of the second type.

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

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

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

Example 5

Embodiment 5 illustrates a flow chart of a first signal, as shown in fig. 5. In fig. 5, a first node U1 communicates with a second node N2 via a wireless link. The steps identified in block F0 of the figure are optional.

For theFirst node U1Receiving a first signal in step S10; receiving a first signaling in step S11; receiving second information in step S12; receiving first information in step S13; transmitting K1 first type signals in step S14; receiving a second signal in step S15; in step S16K 2 signals of the second type are transmitted.

ForSecond node N2Transmitting a first signal in step S20; transmitting a first signaling in step S21; transmitting the second information in step S22; transmitting the first information in step S23; receiving K1 first type signals in step S24; transmitting a second signal in step S25; in step S26K 2 signals of the second type are received.

In embodiment 5, the first signal is used to determine a first channel quality, which is used to determine the K1; k1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, the first field and the K1 both being used to determine the K2; the K1 first type signals and the K2 second type signals are both used for initiating random access; the first signaling is used to determine a first pool of time-frequency resources; the K1 first-class signals respectively occupy K1 first-class time-frequency resource sets, and the K2 second-class signals respectively occupy K2 second-class time-frequency resource sets; the K1 first-class time frequency resource sets and the K2 second-class time frequency resource sets belong to a first time frequency resource pool; the first information is used to determine that the second signal includes the first domain; the second information is related to a first length of time; the second signal includes a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold.

As an embodiment, the first channel quality is used to determine a first rank, which is used to determine the K1; the first domain and the first rank are used to determine a second rank, which is used to determine the K2.

As a sub-embodiment of this embodiment, the first level is a CE (Cooverage Enhancement) level.

As a sub-embodiment of this embodiment, the first Level is an Enhanced Coverage (Enhanced Coverage) Level (Level).

As a sub-embodiment of this embodiment, the first level is an integer.

As a sub-embodiment of this embodiment, the second level is an integer.

As a sub-embodiment of this embodiment, the first field is used to indicate a first integer, and both the first integer and the first rank are used to determine the second rank.

As a sub-embodiment of this sub-embodiment, the sum of said first integer and said first level is equal to said second level.

As an additional embodiment of this sub-embodiment, the difference between the first level and the first integer is equal to the second level.

As an embodiment, the first time-frequency resource pool corresponds to an NPRACH (Narrowband physical random access channel) resource.

As an embodiment, the first time-frequency resource pool corresponds to a starting time.

As an embodiment, the first time-frequency resource pool corresponds to one subcarrier.

As one embodiment, the first signaling comprises RRC signaling.

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

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

As an embodiment, the first signal comprises NPRACH-Parameters-NB in TS 38.331.

As one embodiment, the first information is used to indicate that the second signal includes the first domain.

As an embodiment, the first information is carried by RRC signaling.

As an embodiment, the first information is broadcast information.

As an embodiment, the first information is cell-common.

As an embodiment, the first information is used to determine that the first Field is included in the second signal and that a BI Header Field (Header Field) is not included.

As an embodiment, the first information is used to indicate that the first domain in the second signal is used to determine the target set of time-frequency resources.

As an example, the target field is the first of two bits labeled "R" in the E/T/R/R/BI MAC sub header in TS 38.321.

As an example, the target field is the next bit of two bits labeled "R" in the E/T/R/R/BI MAC header in TS 38.321.

As an example, the target field is two bits labeled "R" in the E/T/R/R/BI MAC sub header in TS 38.321.

As one embodiment, the unit of the first length of time is milliseconds.

As an embodiment, the first length of time is equal to a duration of a positive integer number of time slots.

As one embodiment, the first length of time is K _offset 。

As an example, the meaning of the second information related to the first time length in the above sentence includes: the second information is used to indicate the first length of time.

As an example, the meaning of the second information related to the first time length in the above sentence includes: the second information is used to determine a type of the second node N2, and the type of the second node N2 is used to determine the first length of time.

As a sub-embodiment of this embodiment, the type of the second node N2 is one of GEO satellite, MEO satellite, LEO satellite, HEO satellite, airborne Platform, or HAPS.

As an example, the meaning of the second information related to the first time length in the above sentence includes: the second information is used to determine an altitude of the second node N2, and the altitude of the second node N2 is used to determine the first length of time.

As a sub-embodiment of this embodiment, the height of the second node N2 is the distance between the second node N2 and the near point.

As a sub-embodiment of this embodiment, the height of the second node N2 is the distance between the second node N2 and the horizontal plane.

As one embodiment, the first threshold is fixed.

As an embodiment, the first threshold is configured by RRC signaling.

As an embodiment, the first threshold is configured by higher layer signaling.

As one embodiment, the unit of the first threshold is milliseconds.

As an embodiment, the first threshold is equal to the duration of a positive integer number of consecutive time slots.

As an embodiment, any one of the K1 first-type signals includes M1 first-type sub-signals; the M1 first-type sub-signals respectively occupy M1 orthogonal multicarrier symbols in a time domain, and the M1 first-type sub-signals respectively occupy M1 orthogonal subcarriers in a frequency domain.

As a sub-embodiment of this embodiment, said M1 is equal to 4.

As a sub-embodiment of this embodiment, the M1 first-type sub-signals occupy M1 subcarriers, respectively, and any two subcarriers adjacent to each other in the time domain in the M1 subcarriers are orthogonal in the frequency domain.

As an embodiment, any one of the K2 second-type signals includes M2 second-type sub-signals; the M2 second-type sub-signals respectively occupy M2 orthogonal multicarrier symbols in a time domain, and the M2 second-type sub-signals respectively occupy M2 orthogonal subcarriers in a frequency domain.

As a sub-embodiment of this embodiment, said M2 is equal to 4.

As a sub-embodiment of this embodiment, the M2 second-class sub-signals respectively occupy M2 sub-carriers, and any two sub-carriers adjacent in the time domain in the M2 sub-carriers are orthogonal in the frequency domain.

As an embodiment, the second signal carries a third identifier, and the third identifier is used for feeding back a terminal other than the first node U1.

Example 6

Embodiment 6 illustrates a schematic diagram of K1 signals of the first type, as shown in fig. 6. In fig. 6, any first-type signal of the K1 first-type signals includes 4 first-type sub-signals, where the 4 first-type sub-signals respectively occupy four orthogonal sub-carriers in a frequency domain, and the 4 first-type sub-signals respectively occupy four orthogonal multi-carrier symbols in a time domain; REs (Resource Elements, resource particles) occupied by the K1 first-type signals all belong to a first narrow band, and the first narrow band is 12 continuous subcarriers; the start subcarrier number of the first narrowband is # Q1, and the cutoff subcarrier number # of the first narrowband is (Q1 + 12); said Q1 is a non-negative positive integer; the part filled with oblique lines in the figure corresponds to the REs occupied by the K1 first-type signals.

As an embodiment, the 4 first-type sub-signals are transmitted by a frequency hopping method.

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

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

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

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

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

Example 7

Example 7 illustrates a schematic diagram of K2 signals of the second type, as shown in fig. 7. In fig. 7, any second-type signal of the K2 second-type signals includes 4 second-type sub-signals, the 4 second-type sub-signals respectively occupy four orthogonal sub-carriers in a frequency domain, and the 4 second-type sub-signals respectively occupy four orthogonal multi-carrier symbols in a time domain; the REs occupied by the K2 second-class signals all belong to a first narrow band, and the first narrow band is 12 continuous subcarriers; a start subcarrier number of the first narrowband is # Q1, and a cutoff subcarrier number # (Q1 + 12) of the first narrowband; said Q1 is a non-negative positive integer; the part filled with the oblique squares in the figure corresponds to the REs occupied by the K1 first-type signals.

As an embodiment, the 4 first type sub-signals are transmitted by frequency hopping.

As an embodiment, K2 is not equal to K1 in this application.

As an embodiment, REs occupied by the K1 first-type signals and REs occupied by the K2 second-type signals both belong to a first narrow band, and the first narrow band is 12 consecutive subcarriers.

As a sub-embodiment of this embodiment, the first narrowband is configured by an NPRACH-Parameters-NB IE (Information Element).

Example 8

Embodiment 8 illustrates a schematic diagram of a second signal according to the present application; as shown in fig. 8. In fig. 8, the second signal includes various portions shown in the figure.

As an embodiment, the first field in the present application includes at least one bit in the part of the graph that identifies the dashed box.

As an embodiment, the third identifier in this application corresponds to a RAPID shown in the figure, and the third identifier is used for a random access request initiated by a node other than the first node.

As an embodiment, the second signal carries a plurality of RAPID, any one of the plurality of RAPID being different from the first identity.

Example 9

Embodiment 9 illustrates a schematic diagram of the timing relationship of the present application, as shown in fig. 9. In fig. 9, the first node transmits the K1 first type signals in a first time window, receives the second signals in a second time window, and transmits K2 second type signals in a third time window.

As an embodiment, the first time window comprises a plurality of consecutive time slots.

As an example, the second time window is a RAR window.

For one embodiment, the second time window includes a plurality of consecutive time slots.

For one embodiment, the third time window includes a plurality of consecutive time slots.

Example 10

Embodiment 10 illustrates a block diagram of the structure in a first node, as shown in fig. 10. In fig. 10, a first node 1000 comprises a first receiver 1001, a first transmitter 1002, a second receiver 1003 and a second transmitter 1004.

A first receiver 1001 receiving a first signal;

a first transmitter 1002 for transmitting K1 first type signals;

a second receiver 1003 receiving the second signal;

a second transmitter 1004 for transmitting the K2 second-type signals;

in embodiment 10, the first signal is used to determine a first channel quality, which is used to determine the K1; the K1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, the first field and the K1 both being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access.

For one embodiment, the first channel quality is used to determine a first rank, which is used to determine the K1; the first domain and the first rank are used to determine a second rank, which is used to determine the K2.

As an embodiment, the first receiver 1001 receives a first signaling; the first signaling is used to determine a first pool of time-frequency resources; the K1 first-class signals respectively occupy K1 first-class time-frequency resource sets, and the K2 second-class signals respectively occupy K2 second-class time-frequency resource sets; the K1 first-class time frequency resource sets and the K2 second-class time frequency resource sets belong to a first time frequency resource pool.

As an embodiment, the first receiver 1001 receives first information; the first information is used to determine that the second signal includes the first domain.

As an embodiment, the first receiver 1001 receives the second information; the second information is related to a first length of time; the second signal includes a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold.

For one embodiment, the first receiver 1001 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

For one embodiment, the first transmitter 1002 comprises at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 of embodiment 4.

For one embodiment, the second receiver 1003 comprises at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

The second transmitter 1004 comprises at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 of embodiment 4, as one embodiment.

Example 11

Embodiment 11 illustrates a block diagram of the structure in a second node, as shown in fig. 11. In fig. 11, the second node 1100 comprises a third transmitter 1101, a third receiver 1102, a fourth transmitter 1103 and a fourth receiver 1104.

A third transmitter 1101 that transmits the first signaling;

a third receiver 1102 that receives a first signal in a first set of time-frequency resources;

a fourth transmitter 1103 transmitting the second signal;

a fourth receiver 1104, receiving a target signal in a target set of time-frequency resources;

in embodiment 11, the first signal is used to determine a first channel quality, which is used to determine the K1; k1 is a positive integer, a first sequence is used to generate the K1 first type signals; frequency domain resources occupied by the K1 first-class signals are used for determining a first identifier, and time domain resources occupied by the K1 first-class signals are used for determining a second identifier; the second signal carries the second identifier, and the second signal does not carry the first identifier; the second signal carrying a first field, both the first field and the K1 being used to determine the K2; the K1 first type signals and the K2 second type signals are both used to initiate random access.

As an embodiment, the third transmitter 1101 transmits a first signaling; the first signaling is used to determine a first pool of time-frequency resources; the K1 first-class signals respectively occupy K1 first-class time-frequency resource sets, and the K2 second-class signals respectively occupy K2 second-class time-frequency resource sets; the K1 first-class time-frequency resource sets and the K2 second-class time-frequency resource sets both belong to a first time-frequency resource pool.

For one embodiment, the third transmitter 1101 transmits first information; the first information is used to determine that the second signal includes the first domain.

For one embodiment, the third transmitter 1101 transmits second information; the second information is related to a first length of time; the second signal includes a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold.

For one embodiment, the third transmitter 1101 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the third receiver 1102 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of embodiment 4.

For one embodiment, the fourth transmitter 1103 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the fourth receiver 1104 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the foregoing embodiments may be implemented in the form of hardware, or may be implemented in the form of software functional modules, and the present application is not limited to any specific combination of software and hardware. First node and second node in this application include but not limited to cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, vehicles, vehicle, RSU, aircraft, unmanned aerial vehicle, wireless communication equipment such as remote control plane. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an over-the-air base station, an RSU, and other wireless communication devices.

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

Claims

1. A first node for use in wireless communications, comprising:

a first receiver that receives a first signal;

a first transmitter for transmitting K1 first type signals;

a second receiver receiving a second signal;

a second transmitter for transmitting the K2 second-type signals;

2. The first node of claim 1, wherein the first channel quality is used to determine a first rank, the first rank being used to determine the K1; the first domain and the first rank are used to determine a second rank, which is used to determine the K2.

3. The first node according to claim 1 or 2, characterized in that the first receiver receives first signaling; the first signaling is used to determine a first pool of time-frequency resources; the K1 first-class signals respectively occupy K1 first-class time-frequency resource sets, and the K2 second-class signals respectively occupy K2 second-class time-frequency resource sets; the K1 first-class time-frequency resource sets and the K2 second-class time-frequency resource sets both belong to a first time-frequency resource pool.

4. The first node according to claim 1 or 2, characterized in that the first receiver receives first information; the first information is used to determine that the second signal includes the first domain.

5. The first node of claim 3, wherein the first receiver receives first information; the first information is used to determine that the second signal includes the first domain.

6. The first node according to claim 1 or 2, characterized in that the first receiver receives second information; the second information is related to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the sender of the second information is a second node; the meaning of the second information related to the first time length includes at least one of:

-the second information is used to indicate the first length of time;

-the second information is used for determining a type of the second node, which is used for determining the first length of time;

-the second information is used for determining the altitude of the second node, which is used for determining the first length of time.

7. The first node of claim 3, wherein the first receiver receives second information; the second information is related to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the sender of the second information is a second node; the meaning of the second information relating to the first length of time includes at least one of:

-the second information is used to indicate the first length of time;

-the second information is used for determining an altitude of the second node, which is used for determining the first length of time.

8. The first node of claim 4, wherein the first receiver receives second information; the second information is related to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the sender of the first information is a second node; the meaning of the second information related to the first time length includes at least one of:

-the second information is used to indicate the first length of time;

9. The first node of claim 5, wherein the first receiver receives second information; the second information is related to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the sender of the first information is a second node; the meaning of the second information relating to the first length of time includes at least one of:

-the second information is used to indicate the first length of time;

10. The first node of any of claims 1, 2, 5, 7, 8 or 9, wherein any of the K1 first type signals comprises M1 first type sub-signals; the M1 first-type sub-signals respectively occupy M1 orthogonal multicarrier symbols in a time domain, and the M1 first-type sub-signals respectively occupy M1 orthogonal subcarriers in a frequency domain.

11. The first node according to any of claims 1, 2, 5, 7, 8 or 9, wherein any of the K2 second type signals comprises M2 second type sub-signals; the M2 second-type sub-signals respectively occupy M2 orthogonal multicarrier symbols in a time domain, and the M2 second-type sub-signals respectively occupy M2 orthogonal subcarriers in a frequency domain.

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

a third transmitter that transmits the first signal;

a third receiver for receiving K1 first-type signals;

a fourth transmitter that transmits the second signal;

a fourth receiver for receiving K2 second-type signals;

13. The second node according to claim 12, characterised in that the first channel quality is used for determining a first rank, which is used for determining the K1; the first domain and the first rank are used to determine a second rank, which is used to determine the K2.

14. Second node according to claim 12 or 13, characterized in that the third transmitter transmits a first signaling; the first signaling is used to determine a first pool of time-frequency resources; the K1 first-class signals respectively occupy K1 first-class time-frequency resource sets, and the K2 second-class signals respectively occupy K2 second-class time-frequency resource sets; the K1 first-class time-frequency resource sets and the K2 second-class time-frequency resource sets both belong to a first time-frequency resource pool.

15. Second node according to claim 12 or 13, characterized in that the third transmitter transmits the first information; the first information is used to determine that the second signal includes the first domain.

16. The second node of claim 14, wherein the third transmitter transmits the first information; the first information is used to determine that the second signal includes the first domain.

17. Second node according to claim 12 or 13, characterized in that the third transmitter transmits second information; the second information is related to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the meaning of the second information related to the first time length includes at least one of:

-the second information is used to indicate the first length of time;

18. The second node of claim 14, wherein the third transmitter transmits second information; the second information is related to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the meaning of the second information related to the first time length includes at least one of:

-the second information is used to indicate the first length of time;

19. The second node of claim 15, wherein the third transmitter transmits second information; the second information is related to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the meaning of the second information relating to the first length of time includes at least one of:

-the second information is used to indicate the first length of time;

20. The second node of claim 16, wherein the third transmitter transmits second information; the second information is related to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the meaning of the second information related to the first time length includes at least one of:

-the second information is used to indicate the first length of time;

21. The second node according to any of claims 12, 13, 16, 18, 19 or 20, wherein any of the K1 first type signals comprises M1 first type sub-signals; the M1 first-type sub-signals respectively occupy M1 orthogonal multicarrier symbols in a time domain, and the M1 first-type sub-signals respectively occupy M1 orthogonal subcarriers in a frequency domain.

22. The second node according to any of claims 12, 13, 16, 18, 19 or 20, wherein any of the K2 second type signals comprises M2 second type sub-signals; the M2 second-type sub-signals respectively occupy M2 orthogonal multicarrier symbols in a time domain, and the M2 second-type sub-signals respectively occupy M2 orthogonal subcarriers in a frequency domain.

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

receiving a first signal;

transmitting K1 first-type signals;

receiving a second signal;

transmitting K2 second-class signals;

24. The method in a first node according to claim 23,

the first channel quality is used to determine a first rank, which is used to determine the K1; the first domain and the first rank are used to determine a second rank, which is used to determine the K2.

25. A method in a first node according to claim 23 or 24, comprising:

receiving a first signaling;

26. A method in a first node according to claim 23 or 24, comprising:

receiving first information;

27. A method in a first node according to claim 25, comprising:

receiving first information;

28. A method in a first node according to claim 23 or 24, comprising:

receiving second information;

wherein the second information relates to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the sender of the second information is a second node; the meaning of the second information related to the first time length includes at least one of:

-the second information is used to indicate the first length of time;

29. A method in a first node according to claim 25, comprising:

receiving second information;

wherein the second information relates to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the sender of the second information is a second node; the meaning of the second information relating to the first length of time includes at least one of:

-the second information is used to indicate the first length of time;

30. A method in a first node according to claim 26, comprising:

receiving second information;

wherein the second information relates to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the sender of the first information is a second node; the meaning of the second information relating to the first length of time includes at least one of:

-the second information is used to indicate the first length of time;

31. A method in a first node according to claim 27, comprising:

receiving second information;

-the second information is used to indicate the first length of time;

32. A method in a first node according to any of claims 23, 24, 27, 29, 30 or 31, wherein any of the K1 first type signals comprises M1 first type sub-signals; the M1 first-type sub-signals respectively occupy M1 orthogonal multicarrier symbols in a time domain, and the M1 first-type sub-signals respectively occupy M1 orthogonal subcarriers in a frequency domain.

33. A method in a first node according to any of claims 23, 24, 27, 29, 30 or 31, wherein any of the K2 second type signals comprises M2 second type sub-signals; the M2 second-type sub-signals respectively occupy M2 orthogonal multicarrier symbols in a time domain, and the M2 second-type sub-signals respectively occupy M2 orthogonal subcarriers in a frequency domain.

34. A method in a second node in wireless communication, comprising:

transmitting a first signal;

receiving K1 first-type signals;

transmitting a second signal;

receiving K2 second-class signals;

35. A method in a second node according to claim 34, characterised in that the first channel quality is used for determining a first rank, which is used for determining the K1; the first domain and the first rank are used to determine a second rank, which is used to determine the K2.

36. A method in a second node according to claim 34 or 35, comprising:

sending a first signaling;

37. A method in a second node according to claim 34 or 35, comprising:

sending first information;

38. A method in a second node according to claim 36, comprising:

sending first information;

39. A method in a second node according to claim 34 or 35, comprising:

sending the second information;

wherein the second information relates to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the meaning of the second information relating to the first length of time includes at least one of:

-the second information is used to indicate the first length of time;

40. A method in a second node according to claim 36, comprising:

sending the second information;

wherein the second information relates to a first length of time; the second signal comprises a target domain that can be interpreted as the first domain when the first length of time is greater than a first threshold; the unit of the first length of time is milliseconds or the first length of time is equal to the duration of a positive integer number of time slots; the unit of the first threshold is milliseconds or the first threshold is equal to the duration of a positive integer number of consecutive time slots; the meaning of the second information related to the first time length includes at least one of:

-the second information is used to indicate the first length of time;

41. A method in a second node according to claim 37, comprising:

sending the second information;

-the second information is used to indicate the first length of time;

42. A method in a second node according to claim 38, comprising:

sending the second information;

-the second information is used to indicate the first length of time;

43. A method in a second node according to any of claims 34, 35, 38, 40, 41 or 42, wherein any of the K1 signals of the first type comprises M1 sub-signals of the first type; the M1 first-type sub-signals respectively occupy M1 orthogonal multicarrier symbols in a time domain, and the M1 first-type sub-signals respectively occupy M1 orthogonal subcarriers in a frequency domain.

44. A method in a second node according to any of claims 34, 35, 38, 40, 41 or 42, wherein any of the K2 second type signals comprises M2 second type sub-signals; the M2 second-type sub-signals respectively occupy M2 orthogonal multicarrier symbols in a time domain, and the M2 second-type sub-signals respectively occupy M2 orthogonal subcarriers in a frequency domain.