CN113573249A

CN113573249A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN113573249A
Application number: CN202010353472.0A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-10-29
Anticipated expiration: 2040-04-29
Also published as: CN113573249B

Abstract

The invention discloses a method and an apparatus in a node used for wireless communication. A first node receives a first signaling, wherein the first signaling indicates a first identification list; sending a second signaling, wherein the second signaling indicates a second identification list; the first identifier list comprises K identifiers, the K identifiers indicate K MBMS services, the K MBMS services are sent by a first service cell, and K is a positive integer; the second list of tokens includes K1 tokens of K tokens, the K1 being a positive integer no greater than the K; at least one of the first signaling and the second signaling is used to determine the first serving cell identity. The method and the device can acquire the receiving state of the MBMS with the cell as the granularity, thereby adjusting the transmission mode of the MBMS of a single cell.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to transmission methods and apparatus in wireless communication systems, and more particularly, to multicast and broadcast related transmission schemes and apparatus 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, research on New Radio interface (NR) technology (or fine Generation, 5G) is decided over 72 sessions of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network), and standardization Work on NR is started over WI (Work Item) where NR passes through 75 sessions of 3GPP RAN.

One of the key technologies of NR is to support BWP (Bandwidth Part). BWP is a subset of the entire bandwidth of the cell; the size of each BWP, and the used SCS (sub-carrier Spacing) and CP (Cyclic Prefix) types can be flexibly configured. The BWP functions as follows: the capability requirements of the UE may be reduced, for example, the UE may support only a small bandwidth (e.g., 20MHz) instead of supporting the entire bandwidth (e.g., 100 MHz); the larger bandwidth can be used when a large amount of traffic is transmitted, and the smaller bandwidth can be used when no traffic or only a small amount of traffic is transmitted, so that the power consumption of the UE is reduced. The UE may be configured with one or more BWPs, and perform BWP handover (switching/switch) between the configured BWPs through RRC signaling, DCI, inactivity timer, or initiation with random access.

Broadcast (Broadcast)/Multicast (Multicast) transmission techniques are widely used in cellular systems, such as MBMS (Multimedia Broadcast Multicast Service) in 4G LTE (Long Term Evolution) system. The broadcast/multicast transmission is mainly characterized in that the network equipment can simultaneously transmit the same broadcast/multicast data to a plurality of terminal nodes, and the broadcast/multicast transmission has important value in scenes such as broadcast television, disaster early warning, emergency service, industrial control, vehicle networking and the like. In LTE MBMS, an eNB schedules a plurality of terminal nodes to receive a PDSCH (Physical Downlink Shared Channel) or a PMCH (Physical Multicast Channel) containing broadcast/Multicast data through one PDCCH (Physical Downlink Control Channel). The broadcast/multicast-related identifiers include an SC-RNTI (Single Cell RNTI ), an SC-N-RNTI (Single Cell Notification RNTI ) and a G-RNTI (Group RNTI, Group RNTI).

The standardization Work for the NR to provide Multicast and broadcast services in a Single Cell Point-to-MultiPoint (SC-PTM) manner is started after the WI (Work Item) of the NR Multicast is passed through the 3GPP RAN #86 at the next meeting.

Disclosure of Invention

The inventor finds, through research, that there is no mechanism for querying the MBMS service reception status in a single cell, so that the reception status of the MBMS service with cell granularity may not be obtained, and the transmission mode of the MBMS service may not be adjusted according to the reception status of the MBMS service in the single cell.

In view of the above, the present application discloses a solution. It should be noted that, although the above description uses the scenario of communication between the network device and the terminal device as an example, the present application is also applicable to other communication scenarios (for example, the scenario of terminal-to-terminal communication), and achieves similar technical effects. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to scenarios of communication between network devices and terminals and terminal-to-terminal communication) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features in embodiments in a first node of the present application may be applied to a second node and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

As an example, the term (telematics) in the present application is explained with reference to the definition of the specification protocol TS36 series of 3 GPP.

As an example, the terms in the present application are explained with reference to the definitions of the 3GPP specification protocol TS38 series.

As an example, the terms in the present application are explained with reference to the definitions of the 3GPP specification protocol TS37 series.

As an example, the terms in the present application are explained with reference to the definition of the specification protocol of IEEE (Institute of Electrical and Electronics Engineers).

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

a first receiver to receive a first signaling, the first signaling indicating a first list of identities;

a first transmitter for transmitting a second signaling, the second signaling indicating a second identifier list;

the first identifier list comprises K identifiers, the K identifiers indicate K MBMS services, the K MBMS services are sent by a first service cell, and K is a positive integer; the second list of tokens includes K1 tokens of K tokens, the K1 being a positive integer no greater than the K; at least one of the first signaling and the second signaling is used to determine the first serving cell identity.

As one embodiment, the first signaling is non-unicast.

As one embodiment, the phrase first signaling is non-unicast including: the first signaling is identified by a non-unicast index.

As an embodiment, the non-unicast index used to identify the first signaling is a G-RNTI.

As an embodiment, the non-unicast index used to identify the first signaling is SC-RNTI.

As one embodiment, the non-unicast index used to identify the first signaling is used to scramble a CRC of the first signaling.

As an embodiment, the non-unicast index for identifying the first signaling is used to determine a time-frequency resource location occupied by the first signaling.

As an embodiment, the first signaling is sent by way of SC-PTM.

As an embodiment, the second signaling is unicast.

As one embodiment, the phrase second signaling is unicast including: the second signaling is identified by a unicast index.

As an embodiment, the unicast index used to identify the second signaling corresponds to the second serving cell.

As an embodiment, the unicast index for identifying the second signaling corresponds to a CG (Cell Group) in which the second serving Cell is located.

As an embodiment, the unicast index for identifying the second signaling is C-RNTI (Cell RNTI ).

As one embodiment, the unicast index identifying the second signaling comprises 16 bits.

As an embodiment, the phrase "the target recipient of the second signaling comprises a second serving cell" includes: the identity of the second cell is used to generate an RS sequence of the DMRS at the time of the second signaling.

Specifically, according to an aspect of the present application, the method is characterized by further comprising:

the target recipient of the second signaling comprises a second serving cell.

As an embodiment, the phrase "the target recipient of the second signaling comprises a second serving cell" includes: the identity of the second cell is used to scramble the CRC of the second signaling.

As an embodiment, the phrase "the target recipient of the second signaling comprises a second serving cell" includes: and the uplink synchronization when the second signaling is sent takes the downlink synchronization of the second service cell as reference.

As an embodiment, the phrase "the target recipient of the second signaling comprises a second serving cell" includes: and sending a second signaling in the time-frequency resource allocated by the second cell.

As an embodiment, the first Cell identity is a PCI (Physical Cell Identifier) of the first Cell.

As an embodiment, the first Cell identity is an NCGI (NR Cell Global Identifier) of the first Cell.

As an embodiment, the first Cell identity is an NCI (NR Cell identity) of the first Cell.

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

sending a first signaling, wherein the first signaling indicates a first identification list;

the first identifier list includes K identifiers, where the K identifiers indicate K MBMS services, the K MBMS services are transmitted by a first serving cell, and K is a positive integer.

receiving a second signaling, wherein the second signaling indicates a second identification list;

wherein the second list of tokens includes K1 tokens of the K tokens, the K1 being a positive integer no greater than the K.

As an embodiment, the K1 identifiers indicate K1 MBMS services among the K MBMS services.

As an embodiment, the K1 MBMS services are being received, or are of interest to be received.

As an embodiment, the K1 MBMS services are being received by the first node or are interested in being received by the first node.

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

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

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

a second transmitter to transmit a first signaling, the first signaling indicating a first identification list;

the first identifier list includes K identifiers, where the K identifiers indicate K MBMS services, the K MBMS services are sent by a first serving cell, and K is a positive integer.

a second receiver to receive a second signaling, the second signaling indicating a second list of identities;

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

a third receiver to receive a second signaling, the second signaling indicating a second list of identities;

As an example, the present application has the following advantages: and acquiring the receiving state of the MBMS with the cell as granularity, thereby adjusting the transmission mode of the MBMS of a single cell.

Drawings

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

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

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

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

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

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

FIG. 6 illustrates a wireless signal transmission flow diagram according to yet another embodiment of the present application;

FIG. 7 shows a block diagram of a processing arrangement for use in the first node;

FIG. 8 shows a block diagram of a processing means for use in the second node;

fig. 9 shows a block diagram of a processing means for use in the third node.

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step. In particular, the order of steps in blocks does not represent a particular chronological relationship between the various steps.

In embodiment 1, a first node in the present application receives a first signaling in step 101, where the first signaling indicates a first identifier list; step 102, sending a second signaling, wherein the second signaling indicates a second identifier list;

the first identifier list comprises K identifiers, the K identifiers indicate K MBMS services, the K MBMS services are sent by a first service cell, and K is a positive integer; the second list of tokens includes K1 tokens of K tokens, the K1 being a positive integer no greater than the K; at least one of the first signaling and the second signaling is used to determine the first serving cell.

As an embodiment, the first signaling is RRC signaling.

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

As an embodiment, the first signaling is sent by SC-PTM.

As an embodiment, the first signaling is sent at a first serving cell.

As one embodiment, the first signaling is non-unicast.

As an embodiment, the non-unicast index for identifying the first signaling is used to generate an RS sequence of a DMRS (DeModulation Reference Signal) of the first signaling.

As one embodiment, the non-unicast index used to identify the first signaling is used to determine whether the first signaling is received correctly.

As one embodiment, the phrase first signaling is non-unicast including: the first signaling is transmitted on an MCCH (Multicast Control Channel).

As one embodiment, the phrase first signaling is non-unicast including: the first signaling is transmitted on a SC-MCCH (Single Cell Multicast Control Channel).

As one embodiment, the phrase first signaling is non-unicast including: the first signaling is sent on a broadcast or multicast channel.

As an embodiment, the first signaling is sent on a PDSCH (Physical Downlink Shared Channel).

As an embodiment, 1 identifier of the K identifiers corresponds to 1 MBMS service of the K MBMS services one to one.

As an embodiment, the K identifiers correspond to the K MBMS services one to one.

As an embodiment, any one of the K identifiers is G-RNTI.

As an embodiment, any one of the K identifiers is an MBMS service (service) identifier.

As an embodiment, any one of the K identifiers is an MBMS session (session) identifier.

As an embodiment, the phrase that the K MBMS services are transmitted by the first serving cell includes: and the K MBMS services are transmitted in a mode of SC-PTM in the first service cell.

As an embodiment, the phrase that the K MBMS services are transmitted by the first serving cell includes: any one of the K MBMS services is being transmitted by the first serving cell, or will be transmitted by the first serving cell.

As an embodiment, the phrase that the K MBMS services are transmitted by the first serving cell includes: and the session of any one MBMS service in the K MBMS services is sent by the first service cell.

As an embodiment, the first signaling indicates scheduling information of K MBMS services.

As an embodiment, the first signaling indicates scheduling information of a session of any one of K MBMS services.

As an embodiment, the first identification list corresponds to the first serving cell.

As an embodiment, the act of sending the second signaling is a response to the act of receiving the first signaling.

As an embodiment, the second signaling indicates that K1 MBMS services of the K MBMS services are being received or are interested in being received.

As an embodiment, the second signaling indicates that K1 MBMS services of the K MBMS services are being received by the first node or are interested in being received by the first node.

As an embodiment, the sender of the second signaling is the first node.

As an embodiment, the recipient of the second signaling is a second node.

As an embodiment, the recipient of the second signaling is a third node.

As an embodiment, the second signaling is RRC signaling.

As an embodiment, the second signaling comprises all or part of one RRC signaling.

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

As an embodiment, the second signaling is MAC layer signaling.

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

As an embodiment, the second signaling is unicast.

As one embodiment, the unicast index used to identify the second signaling is used to scramble a CRC of the second signaling.

As an embodiment, the unicast index for identifying the second signaling is used to determine a time-frequency resource location occupied by the second signaling.

As one embodiment, the unicast index used to identify the second signaling is used to generate an RS sequence for the DMRS for the second signaling.

As one embodiment, the unicast index used to identify the second signaling is used to determine whether the second signaling is correctly received.

As one embodiment, the phrase second signaling is unicast including: the second signaling is transmitted in a unicast mode.

As one embodiment, the phrase second signaling is unicast including: the second signaling is sent on a unicast channel.

As one embodiment, the phrase second signaling is unicast including: the second signaling is sent on a DCCH (Dedicated Control Channel).

As one embodiment, the phrase second signaling is unicast including: the second signaling is user equipment specific.

As an example, the second signaling is sent on SRB 0.

As an example, the second signaling is sent on SRB 1.

As an example, the second signaling is sent on SRB 2.

As an example, the second signaling is sent on SRB 3.

As an embodiment, the phrase "at least one of the first signaling and the second signaling is used to determine the first serving cell identity" includes: the second signaling indicates a first serving cell identity.

As an embodiment, the phrase "at least one of the first signaling and the second signaling is used to determine the first serving cell identity" includes: the second signaling indicates a first index, and the first index corresponds to a first serving cell identifier one to one, or the first index corresponds to the first serving cell one to one.

As an embodiment, the phrase "at least one of the first signaling and the second signaling is used to determine the first serving cell identity" includes: the serving cell identity receiving the second signaling is determined to be the first serving cell identity.

As a sub-embodiment of the foregoing embodiment, a correspondence relationship between the first index and the first serving cell is configured in advance.

As an embodiment, the first signaling comprises first information used to indicate that the second signaling comprises a first cell identity.

As an embodiment, when the first information is set, the second signaling includes the first cell identity.

As an embodiment, when the first information is set or the first information does not occur, the second signaling does not include the first cell identity.

As an embodiment, the first information is 1 bit.

As a sub-embodiment of the above embodiment, the setting of the first information means that the first information is set to 1.

As a sub-embodiment of the above embodiment, the setting of the first information means that the first information is set to 0.

As an embodiment, the first information is 1 boolean variable.

As a sub-embodiment of the above embodiment, the setting of the first information indicates that the first information is set to TRUE.

As a sub-embodiment of the above embodiment, the setting of the first information indicates that the first information is set to FALSE.

As one embodiment, the first information is 1 enumerated type variable.

As an embodiment, the phrase "at least one of the first signaling and the second signaling is used to determine the first serving cell identity" includes: the first signaling indicates a first serving cell identity and the second signaling indicates the first serving cell identity.

As an embodiment, the phrase "at least one of the first signaling and the second signaling is used to determine the first serving cell identity" includes: the first signaling indicates a first index, the second signaling indicates a first index, and the first index corresponds to the first serving cell identifier one to one, or the first index corresponds to the first serving cell one to one.

As an embodiment, the phrase "at least one of the first signaling and the second signaling is used to determine the first serving cell identity" includes: the first signaling comprises Q identification lists, the Q identification lists comprise a first identification list, the Q identification lists correspond to Q service cells, the Q service cells comprise a first service cell, the first identification list corresponds to the first service cell, and Q is a positive integer; the second signaling at least indicates a second identification list and a first sequence number, and the first sequence number is the sequence number of the first identification list in the Q identification lists.

As an embodiment, the phrase "at least one of the first signaling and the second signaling is used to determine the first serving cell identity" includes: the first signaling comprises Q identification lists, wherein the Q identification lists comprise a first identification list, any one of the Q identification lists comprises a serving cell identification, the serving cell identification included in the first identification list indicates a first serving cell, and Q is a positive integer; the second signaling indicates at least a second list of identities and a serving cell identity comprised by the first list of identities.

As an embodiment, any one of the Q identity lists includes M identities, where the M identities indicate M MBMS services, the M MBMS services are transmitted by corresponding serving cells, and M is a positive integer.

As an embodiment, the phrase that the M MBMS services are transmitted by the corresponding serving cell includes: and the M MBMS services are transmitted in a mode of SC-PTM in the corresponding service cell.

As an embodiment, the phrase that the M MBMS services are transmitted by the corresponding serving cell includes: the M MBMS services are being transmitted, or are to be transmitted, in the corresponding serving cell.

As an embodiment, the phrase that the M MBMS services are transmitted by a first serving cell includes: the session of any one of the M MBMS services is being transmitted, or is to be transmitted, in the corresponding serving cell.

As an embodiment, the phrase "at least one of the first signaling and the second signaling is used to determine the first serving cell identity" includes: the first signaling comprises Q identification lists, the Q identification lists comprise a first identification list, the Q identification lists correspond to Q service cells, the Q service cells comprise a first service cell, the first identification list corresponds to the first service cell, and Q is a positive integer; and the second signaling feeds back the Q identification lists in sequence, the sequence during the feedback corresponds to Q service cell identifications, the second signaling comprises a second identification list, and the second identification list corresponds to the first service cell.

As a sub-embodiment of the foregoing embodiment, the feedback on any one of the Q id lists includes M1 ids of the M ids, where M1 is an integer greater than or equal to 0 and less than or equal to M.

As a sub-embodiment of the above embodiment, the feedback to any one of the Q identifier lists does not include any one of the M identifiers.

As an embodiment, the first serving Cell Identifier is a PCI (Physical Cell Identifier) of the first serving Cell.

As one embodiment, the first signaling is received at a first serving cell.

As an embodiment, the first serving Cell Identifier is an NCGI (NR Cell Global Identifier) of the first serving Cell.

As an embodiment, the first serving Cell identity is an NCI (NR Cell identity) of the first serving Cell.

As an embodiment, the first serving cell identifier is an index, and the index corresponds to the first serving cell one to one.

As a sub-embodiment of the above embodiment, the correspondence relationship between the index and the first serving cell is configured in advance.

As an embodiment, the above method has an advantage that the number of bits occupied by the index is much smaller than that of PCI and NCI, which can effectively reduce signaling overhead.

As one embodiment, the target recipient of the second signaling comprises a first serving cell.

As an embodiment, the phrase "the target recipient of the second signaling comprises a first serving cell" includes: the identity of the first serving cell is used to generate an RS sequence of the DMRS at the time of the second signaling transmission.

As an embodiment, the phrase "the target recipient of the second signaling comprises a first serving cell" includes: the identity of the first serving cell is used to scramble a CRC of second signaling.

As an embodiment, the phrase "the target recipient of the second signaling comprises a first serving cell" includes: and the uplink synchronization when the second signaling is sent takes the downlink synchronization of the first service cell as reference.

As an embodiment, the phrase "the target recipient of the second signaling comprises a first serving cell" includes: and sending a second signaling in the time-frequency resource allocated in the first service area.

As one embodiment, the target recipient of the second signaling comprises a second serving cell.

As an embodiment, the phrase "the target recipient of the second signaling comprises a second serving cell" includes: the identity of the second serving cell is used to generate an RS sequence of the DMRS at the time of the second signaling.

As an embodiment, the phrase "the target recipient of the second signaling comprises a second serving cell" includes: the identity of the second serving cell is used to scramble a CRC of the second signaling.

As an embodiment, the phrase "the target recipient of the second signaling comprises a second serving cell" includes: and sending a second signaling on the time-frequency resource allocated by the second serving cell.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System )/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, 5 GCs (5G Core networks )/EPCs (Evolved Packet cores) 210, HSS (Home Subscriber Server)/UDMs (Unified Data Management) 220, and internet services 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 5GS/EPS provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node 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.

As an embodiment, the first node in the present application includes the UE 201.

As an embodiment, the second node in this application includes the gNB 203.

As an embodiment, the third node in this application includes the gNB 204.

As an embodiment, the first node and the second node in this application are the UE201 and the gNB203, respectively.

As an embodiment, the first node, the second node and the third node in this application are the UE201, the gNB203 and the gNB204, respectively.

As an embodiment, the UE201 and the gNB203 are connected through a Uu interface.

As an embodiment, the first node in this application includes the UE 241.

As an embodiment, the second node in this application includes the gNB 203.

As an embodiment, the first node and the second node in this application are the UE241 and the gNB203, respectively.

As an embodiment, the first node and the second node in this application are the UE241, the gNB203 and the gNB204, respectively.

As an embodiment, the UE241 and the gNB203 are connected through a Uu interface.

As an embodiment, the radio link from the UE201 to the gNB203 is an uplink.

As an embodiment, the radio link from the gNB203 to the UE201 is a downlink.

As an embodiment, the second node in the present application includes the UE 201.

As an embodiment, the second node in this application includes the gNB 204.

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

As an embodiment, the UE241 is included in the user equipment in this application.

As an embodiment, the base station apparatus in this application includes the gNB 203.

As an embodiment, the base station device in this application includes the gNB 204.

As an embodiment, the UE201 supports sidelink transmission.

As an embodiment, the UE201 supports a PC5 interface.

As an embodiment, the UE201 supports the Uu interface.

For one embodiment, the UE241 supports sidelink transmission.

As an embodiment, the UE241 supports a PC5 interface.

As an embodiment, the gNB203 supports the Uu interface.

As an example, the gNB203 supports Integrated Access and Backhaul (IAB).

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

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

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

As an embodiment, the gNB203 is a satellite device.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the first node (RSU in UE or V2X, car equipment or car communication module) and the second node (gNB, RSU in UE or V2X, car equipment or car communication module) or the control plane 300 between two UEs in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above the PHY301, and is responsible for the links between the first and second nodes and the two UEs through the 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. The PDCP sublayer 304 provides data ciphering and integrity protection, and the PDCP sublayer 304 also provides handover support for a second node by a first node. The RLC sublayer 303 provides segmentation and reassembly of packets, retransmission of missing packets by ARQ, and the RLC sublayer 303 also provides duplicate packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell between the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e., Radio bearers) and configuring the lower layers using RRC signaling between the second node and the first node. The radio protocol architecture of the user plane 350 includes layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second nodes is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first node may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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

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

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

As an example, the L2 layer 305 belongs to a higher layer.

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

As an example, the PDCP sublayer 354 belongs to a higher layer.

As an example, the SDAP sublayer 356 belongs to higher layers.

As an example, the L3 level belongs to a higher layer.

As an example, the MAC sublayer 302 belongs to a higher layer.

Example 4

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

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

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

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

In a transmission from the first communications device 410 to the second communications device 450, at the second communications device 450, each receiver 454 receives a signal through its respective antenna 452. 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 second communication device 450. The symbols on each spatial stream are demodulated and recovered at a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communications device 410 on the physical channel. The upper layer data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the 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 first communications device 410 to the second communications device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

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

In a transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the receiving functionality at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multiple antenna receive processor 472 collectively implement the 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 transmissions from the second communications device 450 to the first communications device 410, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer data packets from the controller/processor 475 may be provided to a core network.

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 450 means at least: receiving a first signaling, wherein the first signaling indicates a first identification list; sending a second signaling, wherein the second signaling indicates a second identification list; the first identifier list comprises K identifiers, the K identifiers indicate K MBMS services, the K MBMS services are sent by a first service cell, and K is a positive integer; the second list of tokens includes K1 tokens of K tokens, the K1 being a positive integer no greater than the K; at least one of the first signaling and the second signaling is used to determine the first serving cell identity.

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 a first signaling, wherein the first signaling indicates a first identification list; sending a second signaling, wherein the second signaling indicates a second identification list; the first identifier list comprises K identifiers, the K identifiers indicate K MBMS services, the K MBMS services are sent by a first service cell, and K is a positive integer; the second list of tokens includes K1 tokens of K tokens, the K1 being a positive integer no greater than the K; at least one of the first signaling and the second signaling is used to determine the first serving cell identity.

As an embodiment, the second communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: sending a first signaling, wherein the first signaling indicates a first identification list; the first identifier list includes K identifiers, where the K identifiers indicate K MBMS services, the K MBMS services are sent by a first serving cell, and K is a positive integer.

As an embodiment, the second communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending a first signaling, wherein the first signaling indicates a first identification list; the first identifier list includes K identifiers, where the K identifiers indicate K MBMS services, the K MBMS services are sent by a first serving cell, and K is a positive integer.

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.

As an embodiment, the first node in this application includes the first communication device 450, and the second node in this application includes the second communication device 410.

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

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

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

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

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

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

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

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

As one example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 may be utilized to receive the first wireless signal as described herein.

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

As one example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for transmitting the first wireless signal in the present application.

As an example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for transmitting the first signaling in the present application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. In fig. 5, communication between the first node U1 and the second node N1 is over an air interface. In fig. 5, the order of the steps in the blocks does not represent a specific chronological relationship between the individual steps.

For the first node U1, receiving a first signaling in step S5101, the first signaling indicating a first list of identities; in step S5102, second signaling is sent, where the second signaling indicates a second list of identities.

For the second node N1, a first signaling is sent in step S5201; the second signaling is received in step S5202.

As an embodiment, the first node and the second node are connected through a Uu interface.

For one embodiment, the first serving cell is at a second node.

For one embodiment, the second serving cell is at a second node.

As an embodiment, the first serving Cell and the second serving Cell belong to the same CG (Cell Group).

As an example, the first serving Cell is a PCell (Primary Cell, Primary Cell of MCG)

As an embodiment, the first serving Cell is a PSCell (Primary Secondary Cell of SCG).

As an embodiment, the first serving Cell is a SCell (Secondary Cell).

As one embodiment, the second serving cell is a PCell.

As one embodiment, the second serving cell is a PSCell.

As one embodiment, the second serving cell is an SCell.

As an embodiment, the first serving cell is an SCell and the second serving cell is a PCell.

As an embodiment, the first serving cell is an SCell and the second serving cell is a PSCell.

As an example, the second signaling is sent on SRB 0.

As an example, the second signaling is sent on SRB 1.

As an example, the second signaling is sent on SRB 2.

As an example, the second signaling is sent on SRB 3.

As an embodiment, the first node receives the K1 MBMS services from the first serving cell and sends the second signaling to the second serving cell.

As an embodiment, the second node sends a third signaling to the fourth node, where the third signaling indicates at least one of the second identifier list, the first serving cell identifier, and the first node identifier.

As an embodiment, the second node and the fourth node are connected through an MBMS-related interface.

As an embodiment, the second node and the fourth node are connected through an MBMS control interface.

For one embodiment, the fourth node is a gbb.

As an embodiment, the fourth node is a core network node.

For one embodiment, the fourth node is a logical node.

As an embodiment, the fourth node includes a control function of the MBMS, where the control function of the MBMS is used to determine a receiving state of the MBMS service or determine a transmission mode of the MBMS service.

As an embodiment, the transmission mode of the MBMS service comprises at least one of unicast, SC-PTM and MBSFN.

Example 6

Embodiment 6 illustrates a wireless signal transmission flow diagram according to yet another embodiment of the present application, as shown in fig. 6. In FIG. 6, communication between the first node U1 and the second node N1 is via an air interface; the second node N1 and the third node N2 communicate with each other via a wired interface. In fig. 6, the order of the steps in the blocks does not represent a specific chronological relationship between the individual steps.

For the first node U1, receiving a first signaling in step S6101, the first signaling indicating a first list of identities; in step S6102, a second signaling is sent, where the second signaling indicates a second identifier list and a first serving cell identifier.

For the second node N1, sending a first signaling in step S6201; the third signaling is received in step S6203.

For the third node N2, receiving second signaling in step S6302; in step S6303, a third signaling is sent, where the third signaling indicates the second identifier list and the first serving cell identifier.

Here, step S6203 and step S6303 included in the dashed line box F1 are optional.

For one embodiment, the first serving cell is at a second node.

As an embodiment, the second serving cell is at a third node.

As an embodiment, the first serving Cell is a PCell (Primary Secondary Cell, Primary Cell or Primary Cell of MCG).

As an embodiment, the first serving Cell is a SCell (Secondary Cell).

As an embodiment, the first serving Cell belongs to an MCG (Master Cell Group).

As an embodiment, the first serving Cell belongs to a SCG (Secondary Cell Group).

As an embodiment, the second serving cell belongs to an SCG.

As an embodiment, the second serving cell belongs to an MCG.

As one embodiment, the second serving cell is a PCell.

As one embodiment, the second serving cell is a PSCell.

As one embodiment, the second serving cell is an SCell.

As an embodiment, the first serving Cell and the second serving Cell belong to different CGs (Cell groups), respectively.

As an embodiment, the second node is a MN (Master node).

As an embodiment, the second node is a SN (Secondary node).

As an embodiment, the third node is a MN.

As an embodiment, the third node is a SN.

As an embodiment, the third node is a MN and the second node is a SN.

For one embodiment, the second node is a MN and the third node is a SN.

As an embodiment, the MCG includes a serving cell at the MN.

As an embodiment, the SCG comprises a serving cell at SN.

As an embodiment, the MN refers to a radio access node providing a control plane connection to a core network.

As an embodiment, the SN refers to a radio access node that does not provide a control plane connection to the core network.

As an embodiment, the interface between the second node and the third node is an Xn port.

As an embodiment, when the first serving cell is not in the third node.

As an embodiment, the third signaling comprises a first node identification.

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

As an embodiment, the first node identifier is an IMSI (International Mobile Subscriber identity).

As an example, the second signaling is sent on SRB 0.

As an example, the second signaling is sent on SRB 1.

As an example, the second signaling is sent on SRB 2.

As an example, the second signaling is sent on SRB 3.

As an embodiment, the second signaling is transmitted on the SRB1 when the first node is configured with at least SRB1 and SRB 3.

As an embodiment, the second signaling is transmitted on the SRB2 when the first node is configured with at least SRB2 and SRB 3.

As an embodiment, the second signaling is transmitted on the SRB3 when the first node is configured with at least SRB1 and SRB 3.

As an embodiment, the second signaling is transmitted on the SRB3 when the first node is configured with at least SRB2 and SRB 3.

As an embodiment, the second signaling is transmitted on the MCG when the first node is configured with the MCG and the SCG.

As an embodiment, the first node is connected to both the second node and the third node.

As an embodiment, the first node receives the K1 MBMS services from the second node, and sends the second signaling to the third node.

As an embodiment, the second node and the third node are connected through an Xn interface.

As an embodiment, the second node and the third node are connected through an X2 interface.

As an embodiment, the second node and the third node are connected through an Xn-C interface.

As an embodiment, the second node and the third node are connected through an X2-C interface.

As an example, the link between the second node and the third node is a non-ideal backhaul.

As an embodiment, the link between the second node and the third node is an ideal backhaul.

As an embodiment, the first node and the third node are connected through a Uu interface.

As an embodiment, the first node receives the K1 MBMS services from the first serving cell.

As an embodiment, the first node sends the second signaling to the second serving cell.

As an embodiment, the first node receives the K1 MBMS services from the second node.

As an embodiment, the first node sends the second signaling to the third node.

Example 7

Embodiment 7 illustrates a block diagram of a processing apparatus used in a first node, as shown in fig. 7. In embodiment 7, the first node processing apparatus 700 includes a first receiver 701 and a first transmitter 702.

The first receiver 701 receives a first signaling, where the first signaling indicates a first identifier list.

In embodiment 7, the first identifier list includes K identifiers, where the K identifiers indicate K MBMS services, the K MBMS services are transmitted by a first serving cell, and K is a positive integer.

As an embodiment, the first transmitter 702 transmits a second signaling, where the second signaling indicates a second identifier list.

In embodiment 7, said second list of identities comprises K1 identities of K identities, said K1 being a positive integer no greater than said K; at least one of the first signaling and the second signaling is used to determine the first serving cell identity.

For one embodiment, the first node processing apparatus 700 is a user equipment.

As an embodiment, the first node processing apparatus 700 is a relay node.

For one embodiment, the first node processing apparatus 700 is a base station.

For one embodiment, the first node processing apparatus 700 is a vehicle-mounted communication device.

As an embodiment, the first node processing apparatus 700 is a user equipment supporting V2X communication.

As an embodiment, the first node processing apparatus 700 is a relay node supporting V2X communication.

As an embodiment, the first node processing apparatus 700 is a base station device supporting IAB.

For one embodiment, the first transmitter 702 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.

The first transmitter 702 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 701 includes at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4.

For one embodiment, the first receiver 701 includes 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.

Examples8

Embodiment 8 is a block diagram illustrating a processing apparatus used in a second node, as shown in fig. 8. In embodiment 8, the second node processing apparatus 800 includes a second receiver 801 and a second transmitter 802.

The second receiver 801 receives a second signaling, where the second signaling indicates a second identifier list.

In embodiment 8, the second list of tokens includes K1 tokens of the K tokens, the K1 being a positive integer no greater than the K.

As an embodiment, the second transmitter 802 transmits a first signaling, where the first signaling indicates the first identifier list.

In embodiment 8, the first identifier list includes K identifiers, where the K identifiers indicate K MBMS services, the K MBMS services are sent by a first serving cell, and the K is a positive integer.

For one embodiment, the second node processing apparatus 800 is a user equipment.

In one embodiment, the second node processing apparatus 800 is a relay node.

For one embodiment, the second node processing apparatus 800 is a base station.

As an embodiment, the second node processing apparatus 800 is a vehicle-mounted communication device.

As an embodiment, the second node processing apparatus 800 is a user equipment supporting V2X communication.

As an embodiment, the second node processing apparatus 800 is a relay node supporting V2X communication.

As an embodiment, the second node processing apparatus 800 is a base station device supporting IAB.

The second transmitter 802 includes, for one embodiment, 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 second transmitter 802 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 second receiver 801 includes at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4.

For one embodiment, the second receiver 801 includes 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 9

Embodiment 9 is a block diagram illustrating a processing apparatus used in a third node, as shown in fig. 9. In fig. 9, the third node processing apparatus 900 includes a third receiver 901 and a third transmitter 902.

The third receiver 901 receives a second signaling, where the second signaling indicates a second identifier list.

In embodiment 9, the second list of tokens includes K1 tokens of the K tokens, the K1 being a positive integer no greater than the K.

As an embodiment, the third transmitter 902 transmits a third signaling, where the third signaling indicates the second identifier list.

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

As an embodiment, the first node processing apparatus 900 is a relay node.

For one embodiment, the first node processing apparatus 900 is a base station.

As an embodiment, the first node processing apparatus 900 is a vehicle-mounted communication device.

For one embodiment, the first node processing apparatus 900 is a user equipment supporting V2X communication.

As an embodiment, the first node processing apparatus 900 is a relay node supporting V2X communication.

As an embodiment, the first node processing apparatus 900 is a base station device supporting IAB.

For one embodiment, the first transmitter 902 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 902 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 901 includes at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4.

For one embodiment, the first receiver 901 includes an antenna 452, a receiver 454, a multi-antenna receive processor 458, a receive processor 456, a controller/processor 459, a memory 460, and a data source 467 of fig. 4.

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

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

Claims

1. A first node for wireless communication, comprising:

2. The first node of claim 1, comprising: the target recipient of the second signaling comprises a second serving cell.

3. The first node according to any of claims 1-2, comprising: the first signaling is non-unicast.

4. The first node according to any of claims 1 to 3, comprising: the action sending the second signaling is a response to the action receiving the first signaling.

5. A second node for wireless communication, comprising:

6. The second node of claim 5, comprising:

7. The second node according to any of claims 5 to 6, comprising: the K1 MBMS services are being received by the first node or are of interest to be received by the first node.

8. A third node for wireless communication, comprising:

a third receiver, configured to receive a second signaling, where the second signaling indicates a second identifier list and a first serving cell identifier;

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

receiving a first signaling, wherein the first signaling indicates a first identification list;

sending a second signaling, wherein the second signaling indicates a second identification list;

the first identifier list comprises K identifiers, the K identifiers indicate K MBMS services, the K MBMS services are sent by a first service cell, and K is a positive integer; the second list of 0 tokens includes K1 tokens of K tokens, the K1 being a positive integer no greater than the K; at least one of the first signaling and the second signaling is used to determine the first serving cell identity.

10. The method according to claim 9, for use in a first node, comprising: the target recipient of the second signaling comprises a second serving cell.

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

12. The method as claimed in claim 11, for use in a second node, comprising:

receiving a second signaling, wherein the second signaling indicates a second identifier list and a first serving cell identifier;

13. A method in a third node used for wireless communication, comprising: