CN113825115A

CN113825115A - Method and device for relay transmission

Info

Publication number: CN113825115A
Application number: CN202010566341.0A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-12-21

Abstract

The invention discloses a method and a device for relay transmission. A first node sends a first signaling, wherein the first signaling indicates a first logical channel identity list, and the first logical channel identity list comprises at least one logical channel identity; wherein a recipient of the first signaling is identified by a first identity, and any logical channel identity in the first list of logical channel identities is configured by a communication node other than the recipient of the first signaling. The method and the device can solve configuration conflicts among a plurality of sidelinks or between the sidelinks and the relay link, thereby supporting data relay of V2X scene.

Description

Method and device for relay transmission

Technical Field

The present invention relates to a method and an apparatus in a wireless communication system, and more particularly, to a scheme and an apparatus for supporting relay transmission in a wireless communication system.

Background

Relay communication is a common method in cellular network communication, and data of a source node reaches a remote node through forwarding of a relay node. The source node and the remote node are typically a base station device and a user equipment, and the relay node may be a network device or a user equipment. Common relay communication includes layer 1 relay and layer 2 relay, where the former relay node forwards information bits restored in a physical layer, and the latter relay node forwards information bits restored in layer 2.

D2D (Device to Device) or V2X (Vehicle to outside) is an important application scenario in cellular communication, enabling direct communication between two communication terminals. In both the 3GPP (3rd Generation Partner Project) 4G and 5G standards, D2D/V2X was introduced.

Disclosure of Invention

The inventor finds that in D2D/V2X, one node can simultaneously communicate with a plurality of nodes, and a plurality of secondary links and relay links are simultaneously established; the logical channel configurations between multiple sidelinks may conflict, and the logical channel configurations between the sidelinks and the relay link may also conflict, and thus, the relay of data cannot be supported.

In view of the above, the present application discloses a solution. It should be noted that, in the description of the present application, only the V2X scenario is taken as a typical application scenario or example; the application is also applicable to scenes, such as downlink transmission, except for V2X facing similar problems, and achieves technical effects similar to those in the NR V2X scene. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to V2X, downstream communication, etc.) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features of embodiments in any node of the present application may be applied to any other node. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

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

sending a first signaling, wherein the first signaling indicates a first logical channel identity list, and the first logical channel identity list comprises at least one logical channel identity;

wherein a recipient of the first signaling is identified by a first identity, and any logical channel identity in the first list of logical channel identities is configured by a communication node other than the recipient of the first signaling.

In particular, according to an aspect of the application, the method in the first node used for wireless communication comprises:

receiving a second signaling;

sending a third signaling;

wherein, when the logical channel identity configured by the second signaling belongs to the first logical channel identity list, the third signaling indicates that the configuration of the second signaling fails; and when the logical channel identity configured by the second signaling does not belong to the first logical channel identity list, the third signaling indicates that the configuration of the second signaling is successful.

receiving a first MAC PDU comprising a first data packet associated with a first full identity;

when the first complete identity comprises any logical channel identity in a first logical channel identity list, the first data packet is subjected to subsequent processing; when the first full identity does not include any logical channel identity in the first list of logical channel identities, the first data packet is discarded.

As an embodiment, the first signaling comprises a sildelinkueinformationnr message.

As an embodiment, the first signaling comprises an rrcconnectionreconfiguration failure identity message.

As an embodiment, the first signaling comprises an rrcconnectionreconfiguration failure message.

As an embodiment, the first signaling comprises an RRC signaling.

As an embodiment, the first data packet is a MAC SDU.

As an embodiment, the first packet is a MAC CE.

As an embodiment, any logical channel identity in the first list of logical channel identities indicates a logical channel.

As an embodiment, the logical channels indicated by any logical channel identity in the first logical channel identity list are different from each other.

As an embodiment, any logical channel identity in the first list of logical channel identities has been configured.

As an embodiment, any logical channel identity in the first list of logical channel identities is already occupied.

As an embodiment, the first identity is a Link Layer identity (Link Layer ID).

As an embodiment, the second signaling is used to configure a DRB.

As an embodiment, the second signaling is used to configure an RB (Radio Bearer).

As an embodiment, the second signaling comprises rrcreconconfigurationsildenk.

As an embodiment, the phrase that the third signaling indicates that the configuration of the second signaling was successful includes: the third signaling comprises rrcconnectionreconfiguration sidelinkcomplete.

As an embodiment, the phrase that the third signaling indicates that the configuration of the second signaling was successful includes: the third signaling comprises rrcreeconfiguration sidelinkcomplete.

As an embodiment, the phrase that the third signaling indicates a failure of the configuration of the second signaling includes: the third signaling includes rrcreeconfigurationfailuresdidelilink.

As an embodiment, the phrase that the third signaling indicates a failure of the configuration of the second signaling includes: the third signaling comprises rrcconnectionreconfiguration failure seidelink.

As an embodiment, the phrase the subsequent processing of the first data packet includes: and forwarding the first data packet.

As a sub-embodiment of the above embodiment, the first node U1 sends a second MAC PDU, which includes the first packet.

As a sub-embodiment of the foregoing embodiment, the destination node after the first packet is forwarded is a configuration node of any logical channel identity in the first logical channel identity list.

As an embodiment, the phrase the subsequent processing of the first data packet includes: the first packet is delivered to the RLC layer of the first node U1.

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

configuration conflicts among multiple sidelinks, or between a sidelink and a relay link, can be resolved, thereby supporting data relaying of the V2X scenario.

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

receiving a first signaling;

wherein the first signaling indicates a first logical channel identity list, the first logical channel identity list comprising at least one logical channel identity; a recipient of the first signaling is identified by a first identity, and any logical channel identity in the first list of logical channel identities is configured by a communication node other than the recipient of the first signaling.

In particular, according to an aspect of the application, the method in the second node for wireless communication comprises:

sending a second signaling;

receiving a third signaling;

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

a first transmitter to transmit a first signaling, the first signaling indicating a first logical channel identity list, the first logical channel identity list including at least one logical channel identity;

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

a second receiver receiving the first signaling;

Drawings

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

fig. 1 shows a flow diagram of a relay transmission of a first node according to one embodiment of the invention;

FIG. 2 shows a schematic diagram of a network architecture according to one embodiment of the invention;

fig. 3 shows a schematic diagram of an embodiment of a radio protocol architecture of the user plane and the control plane according to an embodiment of the invention;

FIG. 4 shows a hardware block diagram of a communication node according to an embodiment of the invention;

FIG. 5 illustrates a flow diagram of a transmission between a first node and a second node according to one embodiment of the invention;

FIG. 6 shows a schematic diagram of an identity according to an embodiment of the invention;

FIG. 7 shows yet another schematic diagram of an identity in accordance with an embodiment of the present invention;

FIG. 8 illustrates a diagram of a MAC PDU in accordance with one embodiment of the present invention;

FIG. 9 shows a block diagram of a processing arrangement for use in a first node according to one embodiment of the invention;

fig. 10 shows a block diagram of a processing arrangement for use in the second node according to an embodiment of the invention.

Detailed Description

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

Example 1

Embodiment 1 illustrates a flowchart of relay transmission of a first node according to an embodiment of the present application, as shown in fig. 1.

In embodiment 1, the first node 100 sends a first signaling in step S101, where the first signaling indicates a first logical channel identity list, and the first logical channel identity list includes at least one logical channel identity.

In embodiment 1, a receiver of the first signaling is identified by a first identity, and any logical channel identity in the first logical channel identity list is configured by a communication node other than the receiver of the first signaling.

As an embodiment, the first signaling comprises an RRC signaling.

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

As an embodiment, the first signaling includes one or more fields (fields) in an RRC IE (Information Element).

As an embodiment, the first signaling includes one or more fields in a SIB (System information Block).

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

As an embodiment, the first signaling is transmitted on a psch (Physical Sidelink Shared CHannel).

As an embodiment, the first signaling is sent on a Uu interface.

As an embodiment, the first signaling is sent over a PC5 interface.

As an embodiment, any logical Channel identity in the first logical Channel identity list is an lcid (logical Channel identifier).

As an embodiment, the first identity is a Link Layer identity (Link Layer ID).

As an example, the first identity is a cell ID.

As an embodiment, the first identity is a physical cell ID.

As an embodiment, the number of bits comprised by the first identity is not less than 24.

As an embodiment, the number of bits comprised by the first identity is a positive integer multiple of 8.

As one embodiment, the first identity is used to identify a destination node.

As an embodiment, the phrase that a recipient of the first signaling is identified by a first identity includes that the first identity is an identity of the recipient of the first signaling.

As an embodiment, the phrase the recipient of the first signaling being identified by a first identity includes the first identity being used to generate the first signaling.

As a sub-embodiment of the above embodiment, a first identity is used for scrambling of the CRC of the first signaling.

As one embodiment, the phrase that the recipient of the first signaling is identified by a first identity includes: the first signaling comprises the first identity.

As a sub-embodiment of the foregoing embodiment, the first signaling includes physical layer signaling and MAC PDU, a first part of the first identity is carried by the physical layer signaling, and a second part of the first identity is carried by the MAC PDU.

As an additional embodiment of the sub-embodiment, the physical layer signaling is SCI.

As an additional embodiment of the sub-embodiment, the physical layer signalling is of the second order (2)^nd-stage)SCI。

As an additional embodiment of the sub-embodiment, the format of the physical layer signaling is SCI format (format) 0-2.

As a sub-embodiment of the above embodiment, the phrase that a recipient of the first signaling is identified by a first identity includes: the first signaling comprises physical layer signaling and MAC PDU, the third part of the first identity is carried by the physical layer signaling, and the fourth part of the first identity is carried by the MAC PDU.

As one embodiment, the phrase any logical channel identity in the first list of logical channel identities being configured by a communication node other than the recipient of the first signaling comprises: the configuration node of any logical channel identity in the first list of logical channel identities comprises a first node.

As an embodiment, the first signaling includes an identity of a configuration node of any logical channel identity in the first list of logical channel identities.

As a sub-embodiment of the foregoing embodiment, the identity of the configuration node of any logical channel identity in the first logical channel identity list is a Link Layer identity (Link Layer ID).

As a sub-embodiment of the foregoing embodiment, the identity of the configuration node of any logical channel identity in the first logical channel identity list is a cell ID.

As a sub-embodiment of the foregoing embodiment, the identity of the configuration node of any logical channel identity in the first logical channel identity list is a physical cell ID.

As a sub-embodiment of the foregoing embodiment, the number of bits included in the identity of the configuration node of any logical channel identity in the first logical channel identity list is not less than 24.

As a sub-embodiment of the foregoing embodiment, the number of bits included in the identity of the configuration node of any logical channel identity in the first logical channel identity list is a positive integer multiple of 8.

As an example, the present application has the following advantages: by providing the configured logical channel list, the logical channel configuration conflict between multiple sidelinks or between the sidelink and the relay link can be solved, so as to support the data relay of the V2X scene.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in fig. 2. Fig. 2 illustrates a V2X communication architecture under a 5G NR (new radio, new air interface), LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system architecture. The 5G NR or LTE network architecture may be referred to as 5GS (5GSystem)/EPS (Evolved Packet System) or some other suitable terminology.

The V2X communication architecture of embodiment 2 includes UE (User Equipment) 201, UE241, NG-RAN (next generation radio access Network) 202, 5GC (5G Core Network )/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server )/UDM (Unified Data Management) 220, ProSe function 250, and ProSe application Server 230. The V2X communication architecture may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the V2X communication architecture 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 b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC 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 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (user plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service. The ProSe function 250 is a logical function for network-related behavior required for location-based services (ProSe); including a DPF (Direct Provisioning Function), a Direct Discovery Name Management Function (Direct Discovery Name Management Function), an EPC-level Discovery ProSe Function (EPC-level Discovery ProSe Function), and the like. The ProSe application server 230 has the functions of storing EPC ProSe subscriber identities, mapping between application layer subscriber identities and EPC ProSe subscriber identities, allocating ProSe restricted code suffix pools, etc.

As an embodiment, the UE201 and the UE241 are connected through a Reference Point (Reference Point) of the PC 5.

As an embodiment, the ProSe function 250 is connected with the UE201 and the UE241 through PC3 reference points, respectively.

As an embodiment, the ProSe function 250 is connected with the ProSe application server 230 through a PC2 reference point.

As an embodiment, the ProSe application server 230 is connected with the ProSe application of the UE201 and the ProSe application of the UE241 through a PC1 reference point, respectively.

As an embodiment, the second node and the first node in the present application are an NR node B and a UE201, respectively.

As an embodiment, the first node and the second node in the present application are UE201 and UE241, respectively.

As an embodiment, the wireless link between the UE201 and the UE241 corresponds to a Sidelink (SL) in the present application.

As an embodiment, the radio link from the UE201 to the NR node B is an uplink.

As an embodiment, the radio link from the NR node B to the UE201 is the downlink.

As an embodiment, the UE201 supports relay transmission.

As an embodiment, the UE241 supports relay transmission.

As an example, the gNB203 is a macro cellular (MarcoCellular) base station.

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

As an embodiment, the gNB203 is a pico cell (PicoCell) base station.

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

As an embodiment, the gNB203 is a satellite device.

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 between a first node and a second node, or a first node and a third node, or two UEs in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301, and is responsible for the link between the first node and the second node, or the first node and the third node, or two UEs, through PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node (or the third node). The PDCP sublayer 304 provides data ciphering and integrity protection; for the Uu interface, the PDCP sublayer 304 also provides handover support. The RLC sublayer 303 provides segmentation and reassembly of packets, retransmission of missing packets by ARQ, and the RLC sublayer 303 also provides duplicate packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. For the Uu interface, the MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell between the first nodes. The MAC sublayer 302 is also responsible for HARQ (Hybrid Automatic Repeat Request) operations. The RRC 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. The radio protocol architecture of the user plane 350 includes layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first node and the second node (or third node) 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 (quality of Service) streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first node may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

As an embodiment, the entities of the multiple sub-layers of the control plane in fig. 3 constitute an SRB (Signaling Radio bearer) in the vertical direction.

As an embodiment, entities of the plurality of sublayers of the control plane in fig. 3 constitute a DRB (Data Radio bearer) in a vertical direction.

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

As an embodiment, the second signaling in this application is generated in the RRC 306.

As an embodiment, the third signaling in this application is generated in the RRC 306.

As an embodiment, the first MAC PDU in the present application is generated in the MAC302 or the MAC 352.

As an example, the

L2 layer

305 or 355 belongs to a higher layer.

As an embodiment, the RRC sublayer 306 in the L3 layer belongs to a higher layer.

Example 4

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first communication device 450 apparatus at least: sending a first signaling, wherein the first signaling indicates a first logical channel identity list, and the first logical channel identity list comprises at least one logical channel identity; wherein a recipient of the first signaling is identified by a first identity, and any logical channel identity in the first list of logical channel identities is configured by a communication node other than the recipient of the first signaling.

As an embodiment, the first communication device 450 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 signaling, wherein the first signaling indicates a first logical channel identity list, and the first logical channel identity list comprises at least one logical channel identity; wherein a recipient of the first signaling is identified by a first identity, and any logical channel identity in the first list of logical channel identities is configured by a communication node other than the recipient of the first signaling.

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: receiving a first signaling; wherein the first signaling indicates a first logical channel identity list, the first logical channel identity list comprising at least one logical channel identity; a recipient of the first signaling is identified by a first identity, and any logical channel identity in the first list of logical channel identities is configured by a communication node other than the recipient of the first signaling.

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: receiving a first signaling; wherein the first signaling indicates a first logical channel identity list, the first logical channel identity list comprising at least one logical channel identity; a recipient of the first signaling is identified by a first identity, and any logical channel identity in the first list of logical channel identities is configured by a communication node other than the recipient of the first signaling.

For one embodiment, the first communication device 450 corresponds to a first node in the present application; 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 second communication device 410 is a UE.

Example 5

Embodiment 5 illustrates a transmission flow chart between a first node and a second node according to an embodiment of the present application, as shown in fig. 5. In fig. 5, the order of the steps in the blocks does not represent a specific chronological relationship between the individual steps. In fig. 5, the step in the dashed box F1 is optional.

For theFirst node U1Transmitting a first signaling in step S5101; receiving a second signaling in step S5102; transmitting third signaling in step S5103; the first MAC PDU is received in step S5104.

For theSecond node U2Receiving a first signaling in step S5201; transmitting a second signaling in step S5202; receiving a third signaling in step S5203; the first MAC PDU is transmitted in step S5204.

In embodiment 5, the first signaling indicates a first logical channel identity list, where the first logical channel identity list includes at least one logical channel identity; a receiver of the first signaling is identified by a first identity, and any logical channel identity in the first logical channel identity list is configured by a communication node other than the receiver of the first signaling; when the logical channel identity configured by the second signaling belongs to the first logical channel identity list, the third signaling indicates that the configuration of the second signaling fails; when the logical channel identity configured by the second signaling does not belong to the first logical channel identity list, the third signaling indicates that the configuration of the second signaling is successful; the first MAC PDU comprises a first data packet associated with a first full identity; when the first complete identity comprises any logical channel identity in a first logical channel identity list, performing subsequent processing on the first data packet; when the first full identity does not include any logical channel identity in the first list of logical channel identities, the first data packet is discarded.

As one embodiment, the second node is identified by a first identity.

As an embodiment, the second signaling is used to configure a DRB.

As an embodiment, the second signaling comprises rrcreconconfigurationsildenk.

As an embodiment, the second signaling includes a partial field (field) in RRCReconfigurationSidelink.

As an embodiment, the second signaling comprises rrcreeconfiguration.

For one embodiment, the second signaling includes SIB 12.

As an embodiment, the second signaling comprises SL-LogicalChannelConfigPC 5.

As an embodiment, the second signaling comprises rrcconnectionreconfiguration sildelink.

As an embodiment, the second signaling comprises RRCConnectionReconfiguration.

As an embodiment, the second signaling is sent on a Uu interface.

As an embodiment, the second signaling is sent over a PC5 interface.

As an embodiment, the second signaling is RRC signaling.

As an embodiment, the receiver of the third signaling comprises a second node.

As an embodiment, the third signaling is RRC signaling.

As an embodiment, the third signaling is sent on a Uu interface.

As an embodiment, the third signaling is sent over a PC5 interface.

As an embodiment, the second signaling indicates K1 logical channel identities, the K1 being a positive integer.

As a sub-embodiment of the above embodiment, the K1 is equal to 1.

As a sub-embodiment of the above embodiment, the K1 is greater than 1.

As an embodiment, the phrase that the logical channel identity of the second signaling configuration belongs to the first logical channel identity list includes: the second signaling indicates K1 logical channel identities, the K1 is a positive integer, K2 of the K1 logical channel identities belong to a first list of logical channel identities, the K2 is a positive integer no greater than K1.

As a sub-embodiment of the above embodiment, the K1 is equal to 2 and the K2 is equal to 1.

As a sub-embodiment of the above embodiment, the K1 is equal to 2 and the K2 is equal to 2.

As an embodiment, the phrase that the logical channel identity of the second signaling configuration does not belong to the first list of logical channel identities includes: the second signaling indicates K1 logical channel identities, the K1 is a positive integer, and none of the K1 logical channel identities belongs to the first logical channel identity list.

As an embodiment, the phrase that the third signaling indicates that the configuration of the second signaling was successful includes: the third signaling includes rrcconnectionreconfiguration complete.

As an embodiment, the phrase that the third signaling indicates that the configuration of the second signaling was successful includes: the third signaling includes rrcreeconfigurationcomplete.

As an embodiment, the phrase that the third signaling indicates a failure of the configuration of the second signaling includes: the third signaling includes rrcreeconfigurationfailure.

As an embodiment, the phrase that the third signaling indicates a failure of the configuration of the second signaling includes: the third signaling includes rrcconnectionreconfiguration failure.

As an embodiment, the logical channel identity of the second signaling configuration is added to the first logical channel identity list.

As an embodiment, when the second signaling configuration is successful, the logical channel identity of the second signaling configuration is added to the first logical channel identity list.

As an embodiment, when the second signaling configuration is successful, the logical channel identity of the second signaling configuration is added to a second logical channel identity list, the second logical channel identity list includes N1 logical channel identities, and N1 is a positive integer.

As a sub-embodiment of the above embodiment, N2 logical channel identities of the N1 logical channel identities are included by the first list of logical channel identities, the N2 being a positive integer no greater than N1.

As an embodiment, the second signaling indicates two logical channel identities.

As a sub-embodiment of the above embodiment, the two logical channel identities are indicated by the same SL-logical channel configpc5 field in the second signaling.

As a sub-embodiment of the above embodiment, the two logical channel identities are respectively indicated by two SL-logical channelconfigpc5 fields in the second signaling, and the two SL-logical channelconfigpc5 fields are used to configure the same slrb-PC 5-ConfigIndex.

As a sub-embodiment of the above embodiment, the two logical channel identities are respectively indicated by two SL-logical channelconfigpc5 fields in the second signaling, and the two SL-logical channelconfigpc5 fields are indicated by the same SLRB-Config field in the first signaling.

As an embodiment, the first MAC PDU (Protocol Data Unit) is transmitted on a psch (Physical Sidelink Shared CHannel).

For one embodiment, the first MAC PDU is transmitted on a sidelink.

As an embodiment, the first MAC PDU is transmitted on a PDSCH (Physical Downlink Shared CHannel).

For one embodiment, the first MAC PDU is transmitted on a downlink.

As an embodiment, the first packet is a MAC CE (Control Element).

As an embodiment, the first Data packet is a MAC SDU (Service Data Unit).

As an embodiment, the first full identity comprises part or all of a second identity, the first node being identified by the second identity.

As a sub-embodiment of the above embodiment, the second identity is a link layer identity.

As an embodiment, the first full identity comprises part or all of the first identity.

As one embodiment, the second node is identified by a first identity.

As an embodiment, the first full identity includes part or all of an identity of a first reference node, the first reference node is a destination receiving node of the first data packet, the identity of the first reference node is different from any identity of the first node, and the identity of the first reference node is different from any identity of the second node.

As an embodiment, the first full identity comprises an identity of a configuration node of any logical channel identity in the first list of logical channel identities.

As an embodiment, the phrase associating the first data packet to a first full identity comprises: the first MAC PDU comprises a first MAC sub-PDU which comprises the first data packet, the first MAC sub-PDU comprises a MAC sub-header, and part or all of the first complete identity is carried by the first MAC sub-header.

As a sub-embodiment of the foregoing embodiment, a part or all of the first complete identity indicates a logical channel identity, and the logical channel identity is carried by an LCID field of the first MAC subheader.

As an embodiment, the phrase associating the first data packet to a first full identity comprises: the first full identity comprises part or all of an identity by which a recipient of the first data packet is identified.

As a sub-embodiment of the above embodiment, the identity is a link layer identity.

As a sub-embodiment of the above embodiment, the identity comprises an integer multiple of 8 bits.

As a sub-embodiment of the above embodiment, the identity is an identity of the first node.

As a sub-embodiment of the foregoing embodiment, the identity is an identity of a first reference node, the identity of the first reference node is different from any identity of the first node, and the identity of the first reference node is different from any identity of the second node.

As a sub-embodiment of the foregoing embodiment, the identity is an identity of a configuration node of any logical channel identity in the first logical channel identity list.

As an embodiment, the phrase associating the first data packet to a first full identity comprises: the first full identity comprises part or all of an identity by which the sender of the first data packet is identified.

As an embodiment, the phrase associating the first data packet to a first full identity comprises: the first full identity comprises part or all of a first reference identity, the first full identity comprises part or all of a second reference identity, the sender of the first data packet is identified by the first reference identity, and the recipient of the first data packet is identified by the second identity.

As a sub-embodiment of the above embodiment, the first reference identity is a link layer identity, and the second reference identity is a link layer identity.

As a sub-embodiment of the above embodiment, the first reference identity includes an integer multiple of 8 bits, and the second reference identity includes an integer multiple of 8 bits.

As an embodiment, the phrase associating the first data packet to a first full identity comprises: the first complete identity comprises part or all of a first reference identity, the first complete identity comprises part or all of a second reference identity, a sender of the first data packet is identified by the first reference identity, and a forwarder of the first data packet is identified by the second identity.

As a sub-embodiment of the above embodiment, the second reference identity is an identity of the first node.

As a sub-embodiment of the above-mentioned embodiment, the first packet is forwarded by a forwarder of the first packet.

As an embodiment, the first full identity comprises at least one logical channel identity.

As a sub-embodiment of the above embodiment, the logical channel identity belongs to a first logical channel identity list.

As a sub-embodiment of the above embodiment, the logical channel identity does not belong to the first logical channel identity list.

As a sub-embodiment of the foregoing embodiment, the first data packet is transmitted to an adaptation layer (adaptation), and the first data packet is forwarded by the adaptation layer.

As an embodiment, the phrase the subsequent processing of the first data packet includes: the first data packet comprises a higher layer data packet, which is forwarded.

As a sub-embodiment of the above embodiment, the higher layer packet refers to a PDCP PDU.

As a sub-embodiment of the above embodiment, the data packet of the higher layer refers to an RLC PDU.

As a sub-embodiment of the foregoing embodiment, the higher layer packet refers to a BAP (Backhaul Adaptation Protocol) PDU.

As a sub-embodiment of the foregoing embodiment, the RLC layer of the first node U1 corresponds to any logical channel identity in the first list of logical channel identities included in the first full identity.

As an embodiment, the phrase the subsequent processing of the first data packet includes: distributing the first MAC PDU to a disaggregation (Di relieving) and a Demultiplexing (Demultiplexing) Entity (Entity).

As an embodiment, the time-frequency resource occupied by the first MAC PDU is determined by the second node U2 itself.

As an embodiment, the time-frequency resource occupied by the first MAC PDU is indicated by a network device.

As an embodiment, the time-frequency Resource occupied by the first MAC PDU belongs to a first Resource Pool (Resource Pool) reserved for V2X transmission.

As a sub-embodiment of the above embodiment, the first resource pool is indicated by SIB (System information Block) 12.

As a sub-embodiment of the foregoing embodiment, the first data packet is forwarded, and the first node U1 selects a time-frequency resource in the first resource pool for forwarding the first data packet.

As a sub-embodiment of the foregoing embodiment, the first data packet is forwarded, and time-frequency resources occupied by sending the first MAC PDU and forwarding the first data packet all belong to a first resource pool.

As a sub-embodiment of the foregoing embodiment, the time-frequency resource occupied by forwarding the first data packet is indicated to the first node U1 by the second node U2.

The above embodiment can reduce the unnecessary channel sensing performed by the first node U1 and increase the transmission opportunity.

As a sub-embodiment of the foregoing embodiment, the time-frequency Resource occupied by forwarding the first data packet belongs to a second Resource Pool (Resource Pool) reserved for V2X transmission.

As an additional embodiment of the sub-embodiment, the second resource pool is indicated by SIB (System information Block) 12.

As an adjunct embodiment of the sub-embodiment, the second resource pool is indicated by RRC-specific (Dedicated) signaling directed to the first node U1.

As a sub-embodiment of the foregoing embodiment, the time-frequency resource occupied by forwarding the first data packet is determined by the first node U1.

As a sub-embodiment of the foregoing embodiment, the time-frequency resource occupied by forwarding the first data packet is indicated by a network device.

For one embodiment, the second node is a transmitting node of the first MAC PDU.

As an embodiment, the first full identity comprises a first part of an identity of a second node and a second part of an identity of the second node, and the first full identity comprises a third part of an identity of a first node and a fourth part of an identity of the first node.

As a sub-embodiment of the above embodiment, one identity of the second node is the first identity.

As a sub-embodiment of the above embodiment, the first part of an identity of the second node and the third part of an identity of said first node are carried on physical layer signaling.

As a sub-embodiment of the above embodiment, the second part of an identity of the second node and the fourth part of an identity of said first node are carried on a first MAC PDU.

As an embodiment, the first full identity comprises a first part of an identity of the second node and a second part of an identity of the second node, and the first full identity comprises a third part of an identity of the first node and a fourth part of an identity of the second reference node.

As an embodiment, the second reference node is a destination receiving node of the first packet.

As an embodiment, the second reference node is a configuration node of any logical channel identity in the first list of logical channel identities.

As an embodiment, the first node is a relay node of the first packet.

As a sub-embodiment of the above embodiment, the second part of an identity of the second node and the fourth part of an identity of said second reference node are carried on a first MAC PDU.

Example 6

Example 6 illustrates a schematic diagram of an identity according to an embodiment of the present application, as shown in fig. 6.

In example 6, an identity comprises a first part and a second part.

As an embodiment, the number of bits comprised by the first part and the number of bits comprised by the second part are both positive integer multiples of 8.

As an embodiment, the number of bits comprised by the second part is twice the number of bits comprised by the first part.

As an embodiment, the number of bits comprised by the second part is 16.

As an embodiment, the number of bits comprised by the first part is 8.

As an embodiment, the second part is carried by a MAC PDU and the first part is carried by physical layer signaling.

As an embodiment, the first part is carried by a MAC PDU and the second part is carried by physical layer signaling.

As an embodiment, the number of bits comprised by the one identity is not less than 24.

As an embodiment, the one identity is a Link Layer identity (Link Layer ID).

As an embodiment, the one identity is any one of the first identity, one identity of the first node.

For one embodiment, the leftmost bit of the identity in FIG. 6 is the most significant bit and the rightmost bit is the least significant bit.

As an embodiment, when said one identity is used for identifying a destination node, said one identity is divided into said first part and said second part.

As an embodiment, when said one identity is used for identifying a source node, said one identity is divided into said first part and said second part.

As an embodiment, when said one identity is used to identify a relay node, said one identity is divided into said first part and said second part.

Example 7

Example 7 illustrates yet another schematic of an identity, as shown in fig. 7.

In example 7, an identity comprises a third portion and a fourth portion.

As an embodiment, the number of bits included in the third portion and the number of bits included in the fourth portion are positive integer multiples of 8.

As an embodiment, the number of bits comprised by the third portion is twice the number of bits comprised by the fourth portion.

As an embodiment, the number of bits comprised by the third part is 16.

As an embodiment, the number of bits comprised by the fourth portion is 8.

As an embodiment, the fourth part is carried by a MAC PDU and the third part is carried by physical layer signaling.

As an embodiment, the third part is carried by a MAC PDU and the fourth part is carried by physical layer signaling.

As an embodiment, the one identity is a Link Layer identity (Link Layer ID).

For one embodiment, the leftmost bit of the identity in FIG. 7 is the most significant bit and the rightmost bit is the least significant bit.

As an embodiment, when said one identity is used for identifying a source node, said one identity is divided into said third part and said fourth part.

As an embodiment, when said one identity is used for identifying a destination node, said one identity is divided into said third part and said fourth part.

As an embodiment, when the one identity is used to identify a relay node, the one identity is divided into the third part and the fourth part.

Example 8

Embodiment 8 illustrates a schematic diagram of a MAC PDU according to an embodiment of the present invention, as shown in fig. 8.

In embodiment 8, one MAC PDU includes one MAC Header and at least one MAC sub PDU (sub PDU); the MAC header includes a source identity, a destination identity, and other bits.

As an embodiment, the MAC PDU is transmitted on SL-SCH (SideLink Shared CHannel).

As an embodiment, the number of bits included in the MAC header is fixed.

As an embodiment, the number of bits included in the MAC header is 32.

For one embodiment, the MAC header is a SL-SCH MAC subheader (subheader).

As an embodiment, the further bits comprise 5 fields, V, R, R, R, R, the number of bits comprised being 4, 1, respectively.

As an embodiment, the source identity and the destination identity comprise 16 bits and 8 bits, respectively.

As an embodiment, the source identity in the MAC header and the destination identity in the MAC header are the SRC domain and the DST domain, respectively.

As an embodiment, each MAC sub-PDU includes one MAC sub-header and one MAC SDU, and the MAC sub-header in each MAC sub-PDU includes an LCID field (Logical Channel IDentifier), where the LCID field indicates a Channel identity of a Logical Channel corresponding to the corresponding MAC SDU.

For one embodiment, the LCID field includes 5 bits.

For one embodiment, the LCID field includes 6 bits.

As an example, the MAC PDU in fig. 8 is the first MAC PDU in this application.

As a sub-embodiment of the above embodiment, the first MAC PDU includes at least a first MAC sub-PDU.

As an example, the MAC PDU in fig. 8 is the second MAC PDU in this application.

As a sub-embodiment of the above embodiment, the second MAC PDU includes at least a second MAC sub-PDU.

Example 9

Embodiment 9 illustrates a block diagram of a processing apparatus for use in a first node according to an embodiment of the present application; as shown in fig. 9. In fig. 9, the processing means 900 in the first node comprises a first transmitter 901 and a first receiver 902.

The first transmitter 901 transmits a first signaling;

in embodiment 9, the first signaling indicates a first logical channel identity list, the first logical channel identity list including at least one logical channel identity; wherein a recipient of the first signaling is identified by a first identity, and any logical channel identity in the first list of logical channel identities is configured by a communication node other than the recipient of the first signaling.

For an embodiment, the first receiver 902, receives a second signaling; the first transmitter 901 transmits a third signaling. Wherein, when the logical channel identity configured by the second signaling belongs to the first logical channel identity list, the third signaling indicates that the configuration of the second signaling fails; and when the logical channel identity configured by the second signaling does not belong to the first logical channel identity list, the third signaling indicates that the configuration of the second signaling is successful.

As an embodiment, the first signaling comprises an RRC signaling.

As an embodiment, the second signaling is used to configure a DRB.

As an embodiment, the second signaling comprises rrcreconconfigurationsildenk.

For one embodiment, the first node 900 is a user equipment.

For one embodiment, the second node 900 is an NR node.

For one embodiment, the first transmitter 901 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

The first transmitter 901 includes, for one embodiment, the antenna 452, the transmitter/receiver 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

For one embodiment, the first receiver 902 includes at least the first five of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4.

For one embodiment, the first receiver 902 includes 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, the memory 460, and the data source 467 of fig. 4.

Example 10

Embodiment 10 illustrates a block diagram of a processing apparatus for use in a second node according to an embodiment of the present application; as shown in fig. 10. In fig. 10, the processing means 1000 in the second node comprises a second receiver 1001 and a second transmitter 1002.

The second receiver 1001 receives a first signaling;

in embodiment 10, the first signaling indicates a first logical channel identity list, the first logical channel identity list including at least one logical channel identity; a recipient of the first signaling is identified by a first identity, and any logical channel identity in the first list of logical channel identities is configured by a communication node other than the recipient of the first signaling.

For an embodiment, the second transmitter 1002, transmits a second signaling; the second receiver 1001 receives a third signaling; wherein, when the logical channel identity configured by the second signaling belongs to the first logical channel identity list, the third signaling indicates that the configuration of the second signaling fails; and when the logical channel identity configured by the second signaling does not belong to the first logical channel identity list, the third signaling indicates that the configuration of the second signaling is successful.

For one embodiment, the second node 1000 is a user equipment.

For one embodiment, the second node 1000 is an NR node.

For one embodiment, the second transmitter 1002 includes the antenna 420, the transmitter 418, the transmit processor 416, and the controller/processor 475.

For one embodiment, the second transmitter 1002 includes the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475.

For one embodiment, the second receiver 1001 includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475.

For one embodiment, the second receiver 1001 includes the controller/processor 475.

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

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

Claims

1. A first node for wireless communication, comprising:

2. The first node of claim 1, comprising:

a first receiver receiving the second signaling;

the first transmitter transmits a third signaling;

3. The first node according to claim 1 or 2, comprising:

the first receiver to receive a first MAC PDU comprising a first data packet associated with a first full identity;

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

the first packet is a MAC SDU.

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

the first packet is a MAC CE.

6. A second node for wireless communication, comprising:

a second receiver receiving the first signaling;

7. The second node of claim 6, comprising:

a second transmitter for transmitting a second signaling;

the second receiver receives a third signaling;

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

9. The method used in the first node according to claim 8, comprising:

receiving a second signaling;

sending a third signaling;

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

receiving a first signaling;