CN113347649B

CN113347649B - Method and arrangement in a communication node used for wireless communication

Info

Publication number: CN113347649B
Application number: CN202010136030.0A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2023-02-28
Anticipated expiration: 2040-03-02
Also published as: CN116156532A; CN113347649A

Abstract

A method and arrangement in a communication node for wireless communication is disclosed. The communication node receives a first signaling; sending a second signaling; the communication node is simultaneously connected with a second node and a third node, the third node is connected with a target core network node through a control plane, and the second node is not connected with the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; the communication node retaining second configuration information when the first signaling is sent, the second configuration information relating to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling. The method and the device aim at double-connection communication with large time delay difference between the main node and the auxiliary node, reduce service interruption time and improve service quality.

Description

Method and arrangement in a communication node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a multi-connection transmission method and apparatus.

Background

"further enhancement of MR-DC (Multi-Radio Dual-Connectivity)" and "solution in which NR (New Radio, new air interface) supports NTN (Non-Terrestrial Networks)" are two Work Items (WI) of 3gpp Release 17. The dual connectivity service is provided for the UE (User Equipment) through the NTN and the TN (Terrestrial Networks), so that coverage can be further enhanced, system capacity can be improved, and reliability of the UE can be improved.

Disclosure of Invention

In MN-DC, if a Radio Link Failure (RLF) occurs in an MN (Master Node), a general processing procedure is to perform Handover (HO) of the MN. When the UE performs dual connectivity communication through the NTN and the TN, if the MN is an NTN Node and the SN (Secondary Node, auxiliary Node) is a TN Node, when the MN needs to perform handover due to a radio link failure, the UE service interruption time is long due to a wide coverage area and a long transmission delay of the NTN compared to the TN, and it is difficult to ensure the service quality of the UE.

In view of the above, the present application provides a solution. In the description of the above problem, a dual connection scenario is taken as an example; the method and the device are also applicable to a multi-connection scene, and achieve the technical effect similar to that in a double-connection scene. In addition, the adoption of a unified solution for different scenarios also helps to reduce hardware complexity and cost.

It should be noted that, in the case of no conflict, the embodiments and features in the 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 present application discloses a method in a first node for wireless communication, comprising,

receiving a first signaling;

sending a second signaling;

the first node is simultaneously connected with a second node and a third node, the third node is connected with a target core network node through a control plane, and the second node is not connected with the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling.

As an embodiment, the problem to be solved by the present application includes: the delay difference between the primary node and the secondary node is large, and how to shorten the Service Interruption Time (Service Interruption Time) of the UE when the primary node fails in a radio link.

As an embodiment, the problem to be solved by the present application includes: how to recover the wireless link of the main node as soon as possible when the main node fails to transmit the wireless link.

As an embodiment, the problem to be solved by the present application includes: how to guarantee Service Continuity (Service Continuity) of the UE.

As an embodiment, the characteristics of the above method include: and performing RRC (Radio Resource Control) reconfiguration on the first node through the SN.

As an embodiment, the characteristics of the above method include: and when the SN reconfigures the RRC for the first node, the first node reserves the relevant configuration of the MN.

As an embodiment, the characteristics of the above method include: and establishing control plane connection between the SN and the first node through the configuration of the SN to the first node.

As an example, the benefits of the above method include: improving service continuity of the first node.

As an example, the benefits of the above method include: shortening the service interruption time of the first node.

As an example, the benefits of the above method include: and improving the service quality of the first node.

According to one aspect of the present application, there is provided a computer program product comprising,

transmitting a first signal;

wherein the first signal comprises first information relating to a radio link status of the third node; the recipient of the first signal is the second node.

As an embodiment, the characteristics of the above method include: and the first node sends the radio link failure information of the MN to a network through an SN.

As an embodiment, the benefits of the above method include: fast radio link recovery of MCG (Master Cell Group) is performed by SN.

According to one aspect of the present application, a first timer is used to determine a first length of time; the first length of time is used to determine a maximum length of time for which the first node retains the second configuration information; the receiving time of the first signaling is used for determining the starting time of the first timer; the first length of time is related to a parameter of the third node or the second node.

According to one aspect of the present application, there is provided a method comprising,

receiving a second signal;

transmitting a third signal when the first condition is satisfied;

wherein the measurement for the second signal is used to determine a first reference quality; the first condition relates to the first reference mass; the third signal is used to initiate random access; the first timer is in an active state when the third signal is sent.

According to one aspect of the present application, the first node releases the second configuration information when the first timer expires.

According to an aspect of the application, wherein third signaling is used for configuring for the second node; the third signaling comprises first information relating to a context of the first node; the sender of the third signaling is the third node; the recipient of the third signaling is the second node.

As an embodiment, the characteristics of the above method include: the MN copies the RRC connection related UE context to the SN.

As an example, the benefits of the above method include: RRC connection is established quickly at SN.

According to one aspect of the application, characterized in that the fourth signaling is used for performing a first role conversion; the first role transition is used to transition a control plane connection of the first node from the third node to the second node; the sender of the fourth signaling is the third node; the recipient of the fourth signaling is the second node.

As an embodiment, the characteristics of the above method include: and converting the SN into the MN through the fourth signaling.

As an embodiment, the benefits of the above method include: flexible handovers are made between the MN and the SN.

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

sending a first signaling;

receiving a second signaling;

the second node and the third node provide services for the first node at the same time, the third node is connected with a target core network node through a control plane, and the second node is not connected with the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; the receiver of the first signaling and the sender of the second signaling are the first node.

receiving a first signal;

wherein the first signal comprises first information relating to a radio link status of the third node.

a second signal is received by the first node;

when a first condition is met, a third signal is transmitted by the first node;

wherein the measurement for the second signal is used to determine a first reference quality; the first condition relates to the first reference mass; the third signal is used to initiate random access; when the third signal is sent, the first timer is in a running state; a sender of the second signal and a receiver of the third signal are the third nodes.

According to one aspect of the application, the second configuration information is released by the first node when the first timer expires.

receiving a third signaling;

wherein the third signaling is used to configure for the second node; the third signaling comprises first information relating to a context of the first node; the sender of the third signaling is the third node.

receiving a fourth signaling;

wherein the fourth signaling is used to perform a first role switch; the first role transition is used to transition a control plane connection of the first node from the third node to the second node; a sender of the fourth signaling is the third node.

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

sending a first signaling;

receiving a second signaling;

the first signal is transmitted by the first node;

transmitting a second signal;

receiving a third signal when the first condition is satisfied;

According to one aspect of the application, the first node releases the second configuration information when the first timer expires.

sending a third signaling;

wherein the third signaling is used to configure for the second node; the third signaling comprises first information relating to a context of the first node; the recipient of the third signaling is the second node.

sending a fourth signaling;

wherein the fourth signaling is used to perform a first role switch; the first role transition is used to transition a control plane connection of the first node from the third node to the second node; the recipient of the fourth signaling is the second node.

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

a first receiver receiving a first signaling;

a first transmitter for transmitting a second signaling;

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

a second transmitter that transmits the first signaling;

a second receiver receiving a second signaling;

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

a third transmitter that transmits the first signaling;

a third receiver for receiving the second signaling;

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

when the NTN base station and the TN base station provide dual connectivity service for the UE at the same time, and when a radio link failure occurs in the NTN base station serving as the MN, the RRC connection of the UE needs to be restored through a handover process, and because the transmission delay of the NTN network is large, service interruption time of the UE is long. According to the scheme provided by the application, the MN copies the RRC information of the UE and the context related information of the UE to the SN, and when the MN fails in a radio link, the RRC connection of the UE can be quickly switched from the MN to the SN, so that the service interruption time of the UE is shortened, and the service quality is improved.

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 shows a flow diagram of transmission of a first signal, a second signal, and a third signal according to one embodiment of the present application;

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

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

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

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

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

fig. 7 shows a flow chart for enabling a transition between a primary node and a secondary node by fourth signaling according to an embodiment of the application;

FIG. 8 illustrates a workflow diagram of a first node according to one embodiment of the present application;

FIG. 9 shows a schematic diagram of a first node simultaneously connecting with a second node and a third node according to an embodiment of the application;

FIG. 10 shows a schematic diagram of a first node simultaneously connecting with a second node and a third node according to another embodiment of the present application;

FIG. 11 shows a block diagram of a processing device for use in a first node according to an embodiment of the present application;

FIG. 12 shows a block diagram of a processing device for use in a second node according to an embodiment of the application;

fig. 13 shows a block diagram of a processing device for use in a third node according to an embodiment of the application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of transmission of first signaling and second signaling according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step, and it is particularly emphasized that the sequence of the blocks in the figure does not represent a chronological relationship between the represented steps.

In embodiment 1, a first node in the present application receives the first signaling in step 101; transmitting the second signaling in step 102; the first node is simultaneously connected with a second node and a third node, the third node is connected with a target core network node through a control plane, and the second node is not connected with the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling.

As an embodiment, the sender of the first signaling comprises the third node.

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

As an embodiment, the first signaling is sent by the third node.

As an embodiment, the first signaling is sent by the second node.

As an embodiment, the first signaling is transmitted over an air interface.

As an embodiment, the first signaling is transmitted over a wireless interface.

As an embodiment, the first signaling is transmitted through higher layer signaling.

As an embodiment, the first signaling is used for RRC reconfiguration of the first node U01.

As an embodiment, the first signaling is used for RRC connection reconfiguration of the first node U01.

As an embodiment, the first signaling is used to modify an RRC Connection (Connection).

As an embodiment, the first signaling is used to establish (establish) a Radio Bearer (RB).

As an embodiment, the first signaling is used to modify (modify) a Radio Bearer (RB).

As an embodiment, the first signaling is used to release (release) a Radio Bearer (RB).

As an embodiment, the first signaling is used to add (add) a Secondary Cell (SCell).

As an embodiment, the first signaling is used to modify (modify) a Secondary Cell (SCell).

As an embodiment, the first signaling is used to release (release) a Secondary Cell (SCell).

As an embodiment, the signaling radio bearer of the first signaling comprises SRB0.

As an embodiment, the signaling radio bearer of the first signaling comprises SRB1.

As an embodiment, the signaling radio bearer of the first signaling comprises SRB2.

As an embodiment, the signaling radio bearer of the first signaling comprises SRB3.

As an embodiment, the bearer logical channel of the first signaling includes a DCCH.

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

As an embodiment, the first signaling includes a Radio Resource Control (RRC) message.

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

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

As one embodiment, the first signaling comprises an RRC reconfiguration message.

As one embodiment, the first signaling comprises an RRC connection reconfiguration message.

As an embodiment, the first signaling includes an MCG (Master Cell Group) configuration.

As one embodiment, the first signaling includes a resource configuration used for a control plane.

As an embodiment, the first signaling includes an rrcreeconfiguration Message (Message) in 3gpp TS 36.331.

As an embodiment, the first signaling includes an RRCConnectionReconfiguration Message (Message) in 3gpp TS 38.331.

As an embodiment, the first signaling comprises a rrcreestablistering message in 3gpp TS 38.331.

As an embodiment, the first signaling includes an Information Element (rrcreconfigurable IE).

As an embodiment, the first signaling includes an RRCConnectionReconfiguration IE.

As one embodiment, the first signaling includes a radioBearerConfig field (Filed).

As an embodiment, the first signaling includes a second signaling cell group field (Filed).

As an embodiment, the first signaling comprises a measConfig field (Filed).

As an embodiment, the first signaling includes a masterCellGroup field (Filed).

As an embodiment, the first signaling comprises a fullConfig field (Filed).

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

As an embodiment, the second signaling is received by the second node.

As an embodiment, the second signaling is transmitted over an air interface.

As an embodiment, the second signaling is transmitted over a wireless interface.

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

As an embodiment, the signaling radio bearer of the second signaling comprises SRB1.

As an embodiment, the bearer logical channel of the second signaling includes a DCCH.

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

As an embodiment, the second signaling includes a Radio Resource Control (RRC) message.

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

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

As an embodiment, the second signaling includes an rrcconnectionreconfiguration complete message in 3gpp TS 36.331.

As an embodiment, the second signaling comprises an rrcconnectionreconfiguration complete message in 3gpp TS 38.331.

As an embodiment, the second signaling comprises an RRCReestabl ishment complete message in 3gpp TS 38.331.

As an example, said sentence, said first node remaining connected to both the second node and the third node comprises the following meaning: the second node and the third node simultaneously provide service for the first node.

As an example, said sentence, said first node remaining connected to both the second node and the third node comprises the following meaning: the first node is connected with the second node and the third node through a Dual Connectivity (DC).

As a sub-embodiment of this embodiment, the Dual Connectivity comprises Intra-E-UTRA DC (Dual Connectivity) in 3GPP TS 37.340.

As a sub-embodiment of this embodiment, the Dual Connectivity comprises EN DC (E-UTRA-NR Dual Connectivity) in 3GPP TS 37.340.

As a sub-embodiment of this embodiment, the Dual Connectivity comprises MR-DC (Multi-Radio Dual Connectivity) in 3GPP TS 37.340.

As a sub-embodiment of this embodiment, the Dual Connectivity comprises NE-DC (NR-E-UTRA Dual Connectivity) in 3GPP TS 37.340.

As a sub-embodiment of this embodiment, the Dual connectivity comprises NGEN-DC (NG-RAN E-UTRA-NR Dual connectivity) in 3GPP TS 37.340.

As a sub-embodiment of this embodiment, the Dual Connectivity comprises NR DC (NR-NR Dual Connectivity) in 3gpp TS 37.340.

As an embodiment, the sentence indicates that the third node is connected to the target core network node through the control plane, and the second node is not connected to the target core network node through the control plane, which includes the following meanings: only the third node is responsible for the control plane connection of the first node and the second node is not responsible for the control plane connection of the first node.

As an embodiment, the sentence indicates that the third node is connected to the target core network node through the control plane, and the second node is not connected to the target core network node through the control plane, which includes the following meanings: the control plane of the first node terminates at the third node.

As an embodiment, the sentence indicating that the third node is connected to the target core network node through the control plane, and the second node is not connected to the target core network node through the control plane includes the following meanings: the RRC state of the first node is terminated at the third node.

As an embodiment, the sentence indicates that the third node is connected to the target core network node through the control plane, and the second node is not connected to the target core network node through the control plane, which includes the following meanings: a port between the first node and the third node is used for transmitting RRC signaling, and a port between the first node and the second node is not used for transmitting RRC signaling.

As an embodiment, the sentence indicating that the third node is connected to the target core network node through the control plane, and the second node is not connected to the target core network node through the control plane includes the following meanings: a port between the first node and the third node is used to transport Control Plane (CP) signaling, and a port between the first node and the second node is used to transport User Plane (UP) signaling.

As an embodiment, the target core network node comprises an MME (Mobility Management Entity).

For one embodiment, the target core network node includes an AMF (Access and Mobility Management Function).

As one embodiment, the target Core network node comprises 5GC (5G Core network ).

As an embodiment, the target Core network node includes EPC (Evolved Packet Core, evolved Packet Core/4G Core).

As an embodiment, the phrase said first signaling comprises first configuration information comprising the following meaning: the first configuration information is one or more IEs in the first signaling.

As an embodiment, the phrase said first signaling comprises first configuration information comprising the following meaning: the first configuration information is one or more fields in the first signaling.

As an embodiment, the phrase said first signaling comprises first configuration information comprising the following meaning: the first configuration information is all or part of the first signaling.

As an embodiment, the sentence, the first configuration information related to the second node includes the following meanings: the first configuration information is for the second node.

As an embodiment, the sentence, the first configuration information related to the second node includes the following meanings: the first configuration information is a configuration of the second node.

As an embodiment, the sentence, the first configuration information related to the second node includes the following meanings: the first configuration information is used to determine a configuration of the second node.

As one embodiment, the first configuration information includes resources used for MCG.

As one embodiment, the first configuration information includes an MCG configuration.

As one embodiment, the first configuration information includes resources used for SCG (Secondary Cell Group).

As an embodiment, the first Configuration information includes a Measurement Configuration (Measurement Configuration).

As an embodiment, the first configuration information comprises an NR RRC configuration message.

As an embodiment, the first configuration information includes mobile Control (mobile bit Control).

As one embodiment, the first configuration information includes an RRC configuration.

As an embodiment, the first Configuration information includes Radio Resource Configuration (RRC).

As one embodiment, the first configuration information includes a radio bearer configuration.

AS an embodiment, the first configuration information includes AS (Access Stratum) security configuration (security configuration).

As an embodiment, said sentence said first node retaining second configuration information comprises the following meaning: the first node does not release the second configuration information.

As an embodiment, said sentence said first node retaining second configuration information comprises the following meaning: the first node continues to store the second configuration information.

As an embodiment, said sentence said first node retaining second configuration information comprises the following meaning: the first node continues to employ all or a portion of the second configuration information.

As an embodiment, the second configuration information includes resources used for MCG.

As an embodiment, the second configuration information includes an MCG configuration.

As one embodiment, the second configuration information includes resources used for SCG.

As an embodiment, the second Configuration information includes a Measurement Configuration (Measurement Configuration).

As an embodiment, the second configuration information includes Mobility Control (Mobility Control).

As an embodiment, the second configuration information includes RRC configuration.

As an embodiment, the second Configuration information includes Radio Resource Configuration (Radio Resource Configuration).

As an embodiment, the second configuration information includes a radio bearer configuration.

For one embodiment, the second configuration information includes AS security configuration.

As an embodiment, the sentence, the first configuration information related to the second node includes the following meanings: the first configuration information is in effect when the first node and the second node are in radio resource control connection.

As an embodiment, the sentence, the first configuration information and the second node comprise the following meanings: the first configuration information is valid for the second node.

As an embodiment, the sentence, the first configuration information related to the second node includes the following meanings: the first configuration information includes a configuration associated with the second node.

As an embodiment, the sentence, the second configuration information related to the third node includes the following meanings: and when the first node and the third node carry out wireless resource control connection, the second configuration information takes effect.

As an embodiment, the sentence, the second configuration information related to the third node includes the following meanings: the second configuration information is valid for the third node.

As an embodiment, the sentence, the second configuration information related to the third node includes the following meanings: the second configuration information comprises a configuration associated with the third node.

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 diagram of a network architecture 200 of a 5G NR (New Radio, new air interface), LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-Advanced) system. 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) 202,5gc (5G Core networks )/EPC (Evolved Packet Core) 210, hss (Home Subscriber Server)/UDM (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 bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5GC/EPC210 via an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management Field)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

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

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

As an embodiment, the UE201 supports transmission of a Terrestrial Network (TN).

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

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

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

As an embodiment, the gNB203 supports transmission in large latency difference networks.

As an embodiment, the gNB203 supports transmission of a Terrestrial Network (TN).

As an example, the gNB203 is a macro Cellular (Marco Cellular) base station.

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

As an embodiment, the gNB203 is a Pico Cell (Pico Cell) 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 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 radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. A layer 2 (L2 layer) 305 is above the PHY301, and includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control, radio Link layer Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering packets and provides handover support. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the Control plane 300 is responsible for obtaining Radio resources (i.e., radio bearers) and configuring lower layers using RRC signaling. The radio protocol architecture of the user plane 350, which includes layer 1 (L1 layer) and layer 2 (L2 layer), is substantially the same in the user plane 350 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.

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

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

The radio protocol architecture of fig. 3 applies, as an example, to the third node in the present application.

As an embodiment, the first signaling in this application is generated in the RRC306.

As an embodiment, the first signaling in this application is generated in the MAC302 or the MAC352.

As an embodiment, the first signaling in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the second signaling in this application is generated in the RRC306.

As an embodiment, the second signaling in this application is generated in the MAC302 or the MAC352.

As an embodiment, the second signaling in this application is generated in the PHY301 or the PHY351.

As an embodiment, the third signaling in this application is generated in the RRC306.

As an embodiment, the third signaling in this application is generated in the MAC302 or the MAC352.

As an embodiment, the third signaling in this application is generated in the PHY301 or the PHY351.

As an embodiment, the fourth signaling in this application is generated in the RRC306.

As an embodiment, the fourth signaling in this application is generated in the MAC302 or the MAC352.

As an embodiment, the fourth signaling in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the first signal in this application is generated in the RRC306.

As an embodiment, the first signal in this application is generated in the MAC302 or the MAC352.

As an embodiment, the first signal in the present application is generated in the PHY301 or the PHY351.

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

As an embodiment, the third signal in the present application is generated in the PHY301 or the PHY351.

Example 4

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

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

The second 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.

In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of the L2 layer. In transmissions from the second communications device 410 to the first communications device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communications device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal constellation based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate the physical channels that carry 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 multi-carrier 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 functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In transmissions from the second communications device 410 to the second communications device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

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

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

As an embodiment, the first communication device 450 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 at least: receiving a first signaling; sending a second signaling; the first communication device 450 is simultaneously connected to a second node and a third node, where the third node is connected to a target core network node through a control plane, and the second node is not connected to the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first communication device 450 retains second configuration information, the second configuration information being related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling.

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; sending a second signaling; the first communication device 450 maintains connection with the second node and the third node at the same time, the third node is connected with a target core network node through a control plane, and the second node is not connected with the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first communication device 450 retains second configuration information, the second configuration information relating to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling.

As an embodiment, the structure of the second node is the same as the structural block diagram of the second communication device 410.

As one embodiment, the second node 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 node at least: sending a first signaling; receiving a second signaling; the second node and the third node provide services for the first communication device 450 at the same time, the third node and the target core network node are connected through a control plane, and the second node and the target core network node are not connected through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first communication device 450 retains second configuration information, the second configuration information relating to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; the recipient of the first signaling and the sender of the second signaling are the first communication device 450.

As one embodiment, the second node 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; receiving a second signaling; the second node and the third node provide services for the first communication device 450 at the same time, the third node and the target core network node are connected through a control plane, and the second node and the target core network node are not connected through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first communication device 450 retains second configuration information, the second configuration information being related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledgement with respect to the first signaling; the recipient of the first signaling and the sender of the second signaling are the first communication device 450.

As an embodiment, the structure of the third node is the same as the structural block diagram of the second communication device 410.

As one embodiment, the third node 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 third node at least: sending a first signaling; receiving a second signaling; the second node and the third node provide services for the first communication device 450 at the same time, the third node and the target core network node are connected through a control plane, and the second node and the target core network node are not connected through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first communication device 450 retains second configuration information, the second configuration information relating to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; the recipient of the first signaling and the sender of the second signaling are the first communication device 450.

As one embodiment, the third node 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; receiving a second signaling; the second node and the third node provide services for the first communication device 450 at the same time, the third node and the target core network node are connected through a control plane, and the second node and the target core network node are not connected through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first communication device 450 retains second configuration information, the second configuration information relating to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; the recipient of the first signaling and the sender of the second signaling are the first communication device 450.

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

As one implementation, the antenna 452, the transmitter 454, the transmit processor 468, the controller/processor 459 are configured to send second signaling; at least one of the antenna 420, the receiver 418, the receive processor 470, the controller/processor 475 is configured to receive second signaling.

For one embodiment, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 are configured to receive a second signal; at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller/processor 475 is configured to transmit a second signal.

For one implementation, at least one of the antenna 452, the transmitter 454, the transmit processor 468, the controller/processor 459 is configured to transmit a first signal, the antenna 420, the receiver 418, the receive processor 470, and the controller/processor 475 is configured to receive a first signal.

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

As an example, at least one of the antenna 420, the transmitter 418, the transmit processor 416, the controller/processor 475 may be configured to send a third signaling; at least one of the antenna 420, the receiver 418, the receive processor 470, the controller/processor 475 is configured to receive third signaling.

As an example, at least one of the antenna 420, the transmitter 418, the transmit processor 416, the controller/processor 475 may be configured to send fourth signaling; at least one of the antenna 420, the receiver 418, the receive processor 470, the controller/processor 475 is configured to receive fourth signaling.

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 second communication device 410 corresponds to a third node in the present application.

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

For one embodiment, the first communication device 450 is a user equipment supporting a large delay difference.

As an embodiment, the first communication device 450 is a user equipment supporting NTN.

As an example, the first communication device 450 is an aircraft device.

For one embodiment, the first communication device 450 is location-enabled.

As an example, the first communication device 450 does not have a capability specification.

As an embodiment, the first communication device 450 is a TN-capable user equipment.

As an embodiment, the second communication device 410 is a base station device (gNB/eNB/ng-eNB).

As an embodiment, the second communication device 410 is a base station device supporting large delay inequality.

As an embodiment, the second communication device 410 is a base station device supporting NTN.

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

For one embodiment, the second communication device 410 is a flight platform device.

As an embodiment, the second communication device 410 is a base station device supporting TN.

Practice ofExample 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. The first node U01 is a User Equipment (UE); the second Node N02 is a Master Node (MN); the third Node N03 is an auxiliary Node (SN); it is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

For theFirst node U01In step S5101, the first signal is received, in step S5102, the second signal is transmitted, in step S5103, the second signal is received, in step S5104, the first signal is transmitted, in step S5105, the second signal is received, in step S5106, and the third signal is transmitted, in step S5107.

For theSecond node N02The third signaling is received in step S5201, the fourth signaling is received in step S5202, the first signaling is transmitted in step S5203, the second signaling is received in step S5204, and the first signal is received in step S5205.

ForThird node N03In step S5301, the third signal is transmitted, in step S5302, the fourth signal is transmitted, in step S5303, the first signal is transmitted, in step S5304, the second signal is received, in step S5205, the third signal is received, in step S5306.

In embodiment 5, the first node U01 is simultaneously connected to a second node N02 and a third node N03, the third node N03 is connected to a target core network node through a control plane, and the second node N02 is not connected to the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node N02; when the first signaling is sent, the first node U01 retains second configuration information, which is related to the third node N03; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; the first signal comprises first information relating to a radio link status of the third node N03; the recipient of the first signal is the second node; a first timer is used to determine a first length of time; the first time length is used to determine a maximum time length for the first node U01 to retain the second configuration information; a reception time of the first signaling is used to determine a start time of the first timer; the first time length is related to a parameter of the third node N03 or the second node N02; when a first condition is satisfied, the third signal is transmitted; the measurement results for the second signal are used to determine a first reference quality; the first condition relates to the first reference mass; the third signal is used to initiate random access; when the third signal is sent, the first timer is in a running state; when the first timer expires, the first node U01 releases the second configuration information; third signaling is used for configuring for the second node N02; the third signaling comprises first information relating to a context of the first node U01; the sender of the third signaling is the third node N03; the recipient of the third signaling is the second node N02; the fourth signaling is used to perform the first role conversion; the first role transition is used to transition the control plane connection of the first node U01 from the third node N03 to the second node N02; the sender of the fourth signaling is the third node N03; the recipient of the fourth signaling is the second node N02.

As an embodiment, the second signaling is used to acknowledge for the RRC reconfiguration.

As an embodiment, the first signal is an uplink signal.

As an embodiment, the first signal is transmitted by the second node N02.

As one embodiment, the first signal is transmitted over an air interface.

As an embodiment, the first signal is transmitted over a wireless interface.

As an embodiment, the first signaling is transmitted by physical layer signaling.

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

As an embodiment, the first signaling comprises one PUCCH signaling.

As an embodiment, the first signal is transmitted by higher layer signaling.

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

As an embodiment, the first signal comprises a MAC layer message.

As an embodiment, the first signal includes a MAC CE.

As an embodiment, the first signaling includes a MAC subheader.

As an embodiment, the first signal includes a Radio Resource Control (RRC) message.

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

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

As one embodiment, the first signal includes a Radio Link Failure (RLF) Indication (Indication)

As one embodiment, the first signal includes a Measurement Report (Measurement Report) message.

For one embodiment, the first signal is used to report the radio link status of the second node N02 to the third node N03.

As an embodiment, the first signal is used to report a radio link status of a primary Node (Master Node, MN) to a Secondary Node (SN).

As an embodiment, the resource occupied by the first signal is allocated by the second node.

As an embodiment, the first signal is sent over SRB0.

As an embodiment, the first signal is sent over SRB1.

As one embodiment, the phrase the first signal includes first information including the following meaning: the first signal includes all or part of the first information.

As one embodiment, the phrase the first signal includes first information including the following meaning: the first information is one or more IEs in the first signal.

As one embodiment, the phrase the first signal includes first information including the following meaning: the first information is one or more fields in the first signal.

As an embodiment, the sentence said first information relating to the wireless link status of the third node N03 comprises the following meaning: the first information comprises the radio link status of the third node N03.

As an embodiment, the sentence said first information relating to the wireless link status of the third node N03 comprises the following meaning: the first information is used to indicate the radio link status of the third node N03.

For one embodiment, the Radio Link status includes Radio Link Failure (RLF).

For one embodiment, the radio link status includes Beam Failure (Beam Failure).

For one embodiment, the radio link status includes Cell Quality (Cell Quality).

For one embodiment, the wireless link status includes Beam Quality (Beam Quality).

As an embodiment, the radio link status includes a Measurement Result (Measurement Result).

As one embodiment, the radio link status includes CSI (Channel State Information).

For one embodiment, the radio link status includes a received power of the first reference signal.

As a sub-embodiment of this embodiment, the first reference signal comprises CRS.

As a sub-embodiment of this embodiment, the first reference signal comprises a PSS (Primary synchronization signal).

As a sub-embodiment of this embodiment, the first reference signal comprises a SSS (second synchronization signal).

As a sub-embodiment of this embodiment, the first reference signal includes PT-RS (Phase-tracking reference signals).

As a sub-embodiment of this embodiment, the first reference signal includes DM-RS (Demodulation reference signals).

As a sub-embodiment of this embodiment, the first reference signal includes a CSI-RS (Channel-state information reference signal).

As an embodiment, the first information includes a Radio Link Failure (RLF) Indication (Indication).

As a sub-embodiment of this embodiment, the first information includes an indication that the radio link failure occurred at the third node N03.

As a sub-embodiment of this embodiment, the first information is used to indicate to the third node N03 that the radio link failure occurred.

As a sub-embodiment of this embodiment, the radio link failure means that the quality of the signal received by the first node U01 is lower than a certain threshold.

As a sub-embodiment of this embodiment, the radio link failure refers to the first node U01 going out of synchronization in the uplink.

As one embodiment, the first information includes a Beam Failure (Beam Failure) Indication (Indication).

As a sub-embodiment of this embodiment, the first information is used to indicate that the third node N03 has a beam failure.

As a sub-embodiment of this embodiment, the first information includes an indication that the third node N03 has failed to beam.

As a sub-embodiment of this embodiment, the beam failure means that the beam quality received by the first node U01 is lower than a certain threshold.

As a sub-embodiment of this embodiment, the beam failure refers to that the corresponding beam goes out of synchronization.

As an embodiment, the first information includes RSRP (Reference Signal Received Power).

As an embodiment, the first information includes RSRQ (Reference Signal Received Quality).

As one embodiment, the first information includes RSSI (Received Signal Strength Indicator)

As one embodiment, the first information includes SINR (Signal to Noise and Interference Ratio)

As one embodiment, the first Information includes a CRI (Channel State Information reference Signal resource indicator)

As an example, the sentence that the recipient of the first signal is the second node N02 includes the following meaning: the first node U01 will establish an RRC connection with the second node N02.

As an example, the sentence that the recipient of the first signal is the second node N02 includes the following meaning: the first signal is sent by the first node U01 to the second node N02.

As an example, the sentence that the recipient of the first signal is the second node N02 includes the following meaning: the recipient of the first signal is an auxiliary node.

As an example, the sentence that the recipient of the first signal is the second node N02 includes the following meaning: the recipient of the first signal is a PSCell.

As an example, the sentence that the recipient of the first signal is the second node N02 includes the following meaning: the receiver of the first signal is an SCell.

As an embodiment, the first length of time is used to determine a length of time.

As an embodiment, the first length of time is used to determine a maximum run time of the first timer.

As an embodiment, the first time length of the sentence is used to determine the maximum time length that the first node U01 retains the second configuration information includes the following meanings: the maximum time length for the first node U01 to retain the second configuration information is equal to the first time length.

As an embodiment, the first time length of the sentence is used to determine the maximum time length that the first node U01 retains the second configuration information includes the following meanings: and the first node U01 reserves the second configuration information in the running time of the first timer.

As an embodiment, when the wireless link between the first node U01 and the third node N03 is recovered, the first timer stops running.

As an embodiment, the first time length of the sentence is used to determine the maximum time length that the first node U01 retains the second configuration information includes the following meanings: during the running period of the first timer, the first node U01 retains the second configuration information.

As an embodiment, the receiving time of the sentence of the first signaling is used to determine the starting time of the first timer includes the following meanings: and when the first node U01 receives the first signaling, starting the first timer.

As an embodiment, the receiving time of the sentence of the first signaling is used to determine that the starting time of the first timer comprises the following meanings: the time when the first signaling is received by the first node U01 is used to determine the starting time of the first timer.

As an embodiment, the sentence, the first time length related to the parameter of the third node N03 or the second node N02 includes the following meanings: the first time length is related to a parameter of the third node N03.

As an embodiment, the sentence, the first time length related to the parameter of the third node N03 or the second node N02 includes the following meanings: the first length of time is related to a parameter of the second node N02.

As an embodiment, the parameter of the third node N03 or the second node N02 includes a base station height of the third node N03 or the second node N02.

As an embodiment, the parameter of the third node N03 or the second node N02 includes a base station type of the third node N03 or the second node N02.

As an embodiment, the parameter of the third node N03 or the second node comprises a Timing Advance (Timing Advance) of the third node N03 or the second node N02.

As one embodiment, a sender of the second signal includes the third node.

As an embodiment, the second signal is used for channel quality measurement.

For one embodiment, the second signal comprises a physical layer signal.

As an embodiment, the second signal is a wireless signal.

As an example, the second signal is a Baseband (Baseband) signal.

As an embodiment, the second Signal is a Reference Signal (RS).

As an embodiment, the second signal is a Physical Layer (PHY) signal.

For one embodiment, the second signal is transmitted over an air interface.

For one embodiment, the second signal is transmitted through an antenna port.

As an embodiment, the second Signal includes a second Reference Signal (RS).

As a sub-embodiment of this embodiment, the second reference signal comprises CRS.

As a sub-embodiment of this embodiment, the second reference signal includes a PSS (Primary synchronization signal).

As a sub-embodiment of this embodiment, the second reference signal comprises a SSS (second synchronization signal).

As a sub-embodiment of this embodiment, the second reference signal comprises PT-RS (Phase-tracking reference signals).

As a sub-embodiment of this embodiment, the second reference signal includes DM-RS (Demodulation reference signals).

As a sub-embodiment of this embodiment, the second reference signal includes a CSI-RS (Channel-state information reference signal).

As an embodiment, the sentence for which the measurement of the second signal is used for determining the first reference quality comprises the following meaning: the first reference mass is related to a measurement of the second signal.

As an embodiment, the first reference mass comprises RSRP.

As an embodiment, the first reference mass comprises RSRQ.

For one embodiment, the first reference quality comprises RSSI.

As an embodiment, the first reference quality comprises SINR.

As one embodiment, the first reference quality comprises a CRI.

As an embodiment, the first condition is related to a parameter of the third node.

As a sub-embodiment of this embodiment, the parameter of the third node includes a height of the third node, and the height refers to a vertical distance of the third node from the surface of the earth.

As a sub-embodiment of this embodiment, the parameter of the third node comprises an altitude of the third node.

As a sub-embodiment of this embodiment, the parameter of the third node comprises a type of the third node.

As an additional embodiment of this sub-embodiment, the type of the third node comprises an NTN base station.

As an additional embodiment of this sub-embodiment, the type of the third node includes a TN base station.

As an example, the first condition relates to a second length of time.

As a sub-embodiment of this embodiment, the second length of time comprises a Timing Advance (Timing Advance).

As a sub-embodiment of this embodiment, the second Time length includes RTT (Round Trip Time).

As a sub-embodiment of this embodiment, the second time length includes a transmission Delay (Delay) between the first node and the third node.

As an embodiment, said sentence said first condition relating to said first reference quality comprises the following meaning: the first condition includes the first reference mass being greater than a first reference threshold.

As a sub-embodiment of this embodiment, the first reference threshold is configurable.

As a sub-embodiment of this embodiment, the first reference threshold is preconfigured.

As a sub-embodiment of this embodiment, the unit of the first reference threshold is dBm.

As a sub-embodiment of this embodiment, the first reference threshold is a measurement result for another reference signal, and a sender of the another reference signal is a node other than the third node.

As an embodiment, the third signal is used to resume RRC connection with the third node N03.

For one embodiment, the third signal comprises a physical layer signal.

In one embodiment, the third signal comprises a PRACH signal.

As one embodiment, the third signal includes a Payload (Payload).

As an embodiment, the third signal comprises a Preamble sequence.

As an embodiment, the bearer channel of the third signal is a PRACH channel.

As an embodiment, said sentence said third signal is used for initiating random access comprising the following meaning: the third signal is used to perform a four-step random access procedure.

As an embodiment, said sentence said third signal is used for initiating random access comprising the following meaning: the third signal is used to initiate a two-step random access procedure.

As an embodiment, said sentence said third signal is used for initiating random access comprising the following meaning: the third signal is used to initiate a four-step random access procedure.

As an embodiment, the expiration of the first timer includes the following implications: the first signaling is received for a length of time up to the first length of time.

As an embodiment, the expiration of the first timer includes the following implications: the running time of the first timer is equal to the first time length.

As an embodiment, the expiration of the first timer includes the following implications: the first timer is stopped.

As an example, the sentence that the first node U01 releases the second configuration information includes the following meanings: the first node U01 no longer keeps the second configuration information.

As an embodiment, the sentence that the first node U01 releases the second configuration information includes the following meaning: the first node U01 no longer continues to apply the second configuration information.

As an example, the sentence that the first node U01 releases the second configuration information includes the following meanings: the first node U01 releases the configuration associated with the third node N03.

As an embodiment, when the first timer expires, the first node U01 transitions to the single-connection mode, and the first node U01 is served only by the second node N02.

As an embodiment, when the first timer expires, the third node N03 transitions to the primary node (MN) of the first node U01, and the third node N03 adds a new node as a Secondary Node (SN).

As an embodiment, the third signaling is transmitted over an air interface.

As an embodiment, the third signaling is transmitted over a wireless interface.

As an embodiment, the third signaling is transmitted through higher layer signaling.

As an embodiment, the third signaling is sent over an X2-interface.

As an embodiment, the third signaling is sent over an Xn-interface.

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

As an embodiment, said X2-, xn-, and NG-represent an interface between said second node and said third node.

As an embodiment, the third signaling is used to establish an SCG.

As an embodiment, the third signaling is used to modify an SCG.

As an embodiment, the third signaling is used to release one SCG.

As an embodiment, the third signaling is used to configure for SCG.

As an embodiment, the third signaling is used to configure for SNs.

As an embodiment, the third signaling is used for configuring the DU.

As an embodiment, the third signaling includes all or part of a higher layer signaling.

As an embodiment, the third signaling includes a Radio Resource Control (RRC) message.

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

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

As one embodiment, the third signaling includes an S-NODE ADDITION REQUEST Message (Message) in 3GPP TS 38.423.

As an embodiment, the third signaling comprises an S-NODE MODIFICATION REQUEST Message (Message) in 3GPP TS 38.423.

As one embodiment, the third signaling includes an S-NODE MODIFICATION CONFIRM Message (Message) in 3GPP TS 38.423.

As one embodiment, the third signaling includes an S-NODE CHANGE CONFIRM Message (Message) in 3GPP TS 38.423.

As one embodiment, the third signaling includes an S-NODE CHANGE REQUEST Message (Message) in 3GPP TS 38.423.

As an embodiment, the third signaling includes SCG-ConfigInfo message in 3gpp TS 36.331.

As an embodiment, the third signaling comprises a CG-ConfigInfo message in 3gpp TS 38.331.

As an embodiment, the third signaling comprises E-RAB related parameters.

As an embodiment, the third signaling includes MCG configuration information.

As an embodiment, the third signaling comprises SCG configuration information.

As an embodiment, the third signaling includes an SN (Sequence Number) ID.

As an embodiment, the third signaling comprises SN UE X2AP ID.

As an embodiment, the third signaling includes a UE Context (Context).

As an embodiment, the third signaling comprises necessary configuration information for control plane signaling.

As an embodiment, the third signaling includes RRC configuration information of the first node U01.

As an embodiment, the third signaling comprises control plane configuration information of the first node U01.

As an embodiment, the third signaling comprises a first resource pool used for the second node N02 to establish an RRC connection with the first node U01.

As one embodiment, the first resource pool

As an embodiment, the fourth signaling is transmitted over an air interface.

As an embodiment, the fourth signaling is transmitted over a wireless interface.

As an embodiment, the fourth signaling is transmitted through higher layer signaling.

As an embodiment, the fourth signaling is sent over an X2-interface.

As an embodiment, the fourth signaling is sent over an Xn-interface.

As an embodiment, the fourth signaling is sent over a NG-interface.

As an embodiment, the fourth signaling is used to convert the second node into a secondary node and the third node into a primary node.

As an embodiment, the fourth signaling is used to transfer a control plane of the first node from the second node to the third node.

As an embodiment, the fourth signaling includes all or part of a higher layer signaling.

As an embodiment, the fourth signaling includes a Radio Resource Control (RRC) message.

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

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

As an embodiment, the sender of the fourth signaling comprises the second node.

As an embodiment, the fourth signaling comprises an MCG configuration.

As an embodiment, the fourth signaling comprises SCG configuration.

As an embodiment, the fourth signaling comprises an identification of the third node.

As an embodiment, the fourth signaling includes a UE Context (Context).

As an embodiment, the fourth signaling includes SRB configuration.

As an embodiment, the fourth signaling comprises a measurement configuration.

As an embodiment, the fourth signaling includes a Role Change Request message.

As an embodiment, the fourth signaling includes a Role Switch Request message.

As an embodiment, the fourth signaling comprises a MN Change Request message.

As an embodiment, the fourth signaling includes a MN Modification Request message.

As an example, the dashed box F1 exists.

As an example, the dashed box F1 is not present.

As an example, the dashed box F2 exists and F3 does not.

As an example, the dashed box F2 is absent and F3 is present.

Example 6

Embodiment 6 illustrates a schematic diagram of a first timer according to an embodiment of the present application, as shown in fig. 6. In fig. 6, the horizontal axis represents time, the black boxes represent target signals, T1, T2, and T3 represent two different time instants, the time difference between T1 and T3 is equal to a first time length, and the time difference between T1 and T2 is equal to a target time length.

In embodiment 6, the first timer is used to determine a first length of time; the first length of time is used to determine a maximum length of time for which the first node retains the second configuration information.

For one embodiment, the first timer is maintained by the first node.

As an embodiment, the T1 is used to determine the starting time of the first timer.

As an embodiment, the T2 is used to determine the end time of the first timer.

As an embodiment, the T3 is used to determine the expiration time of the first timer.

As an embodiment, the transmission time instant of the target signal is used for determining the T1.

As an embodiment, the reception instant of the target signal is used to determine the T1.

As an embodiment, the time at which the wireless link between the first node and the third node is restored is used to determine the T2.

As an embodiment, the time between the end of the first timer and the time T2 to the time T3 is not used for determining the running time of the first timer.

As an embodiment, the first timer expires when the wireless link between the first node and the third node is not restored until time T3.

As one embodiment, the target signal includes the first signal.

As one embodiment, the target signal includes the third signal.

As an embodiment, the target signal comprises the first signaling.

As an embodiment, the first length of time is configured by the second node.

As an embodiment, the first length of time is configured by a third node.

As an embodiment, the sentence of the first length of time is used to determine a maximum length of time for which the first node retains the second configuration information includes the following meaning: and from the time T1 to the time T3, the first node reserves the second configuration information.

As one embodiment, the first length of time is related to a Timing Advance (TA).

As an embodiment, the first Time length is related to RTT (Round Trip Time).

As an example, the first time duration is related to Path Loss (PL).

As an embodiment, the first length of time is related to a time Delay (Delay) between the first node to the third node.

For one embodiment, the first length of time is configurable.

As one embodiment, the first length of time is preconfigured.

As one embodiment, the first length of time is a fixed size.

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

As an embodiment, the first timer is stopped when the wireless link between the first node and the third node is restored.

Example 7

Embodiment 7 illustrates a flowchart for implementing a transition between a primary node and a secondary node through fourth signaling according to an embodiment of the present application, as described in fig. 7. In fig. 7, the first node U01 communicates with the second node N02 and the third node N03 through a dual connection; each block represents a step, and it is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

In embodiment 7, in step S701, the first node U01 maintains an RRC connection with the third node N03; in step S702, the third node N03 sends a third signaling to the second node N02; in step S703, the third node N03 sends a fourth signaling to the second node N02; in step S704a, the second node N02 sends an RRC reconfiguration message to the first node U01; in step S704b, the third node N03 sends an RRC reconfiguration message to the first node U01; in step S705, the first node U01 disconnects the RRC connection with the third node N03 and maintains the RRC connection with the second node N02.

As an embodiment, the third signaling and the fourth signaling are the same message.

As an embodiment, the third signaling and the fourth signaling are different IEs of the same RRC message.

As an embodiment, the third signaling and the fourth signaling are different domains of the same IE of the same RRC message.

As an embodiment, the third signaling comprises configuration information used for the first node U01 to establish an RRC connection.

As an embodiment, the fourth signaling comprises an indication used to transfer the RRC connection from the third node N03 to the second node N02.

As an embodiment, the fourth signaling comprises IDs of the second node N02 and the third node N03.

As an embodiment, the fourth signaling includes configuration information for the first node U01 to establish an RRC connection.

As an embodiment, the RRC reconfiguration message is sent to the first node U01 by the second node N02 or the third node N03.

As an embodiment, the step S704a exists and the step S704b does not exist.

As an embodiment, the step S704a is absent and the step S704b is present.

Example 8

Embodiment 8 illustrates a workflow diagram of a first node according to an embodiment of the present application. It is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

In embodiment 8, the first node detects a failure of a third node to transmit a radio link in S801, transmits a first signal and starts a first timer in step S802; establishing an RRC connection with the second node in step S803; determining whether the first timer expires in step S804; if so, i.e. the first timer expires, releasing the second configuration information in step S805 a; if not, i.e. the first timer has not expired, in step S805, attempting to recover a wireless link with the third node; judging whether the wireless link of the third node is recovered in step S806; if so, i.e. the wireless link of the third node has been restored, stopping the first timer and disconnecting the RRC connection of the second node in step S807; if not, namely the wireless link of the third node is not recovered, the step S804 is skipped to, and it is determined again whether the first timer expires.

As an embodiment, the step S801 is implemented by detecting whether the uplink between the first node and the third node is synchronous.

As an embodiment, the step S802 is implemented by detecting whether the signal receiving power of the third node satisfies a condition.

As an embodiment, the step S803 is implemented by the first signaling and the second signaling in this application.

As an embodiment, the step S805 is implemented by the third signal in this application.

As an embodiment, the step S805 is implemented by a random access procedure.

Example 9

Embodiment 9 illustrates a schematic diagram in which a first node simultaneously connects with a second node and a third node according to an embodiment of the present application. In fig. 9, the first node is a User Equipment (UE), and the second node and the third node are two base station devices (BSs), respectively; two solid lines respectively represent a link between the first node and the second node and a link between the first node and the third node; the dashed line represents the link between the second node and the third node.

In embodiment 9, the first node is simultaneously connected with the second node and 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 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 and the second node are connected through a Uu interface.

As an embodiment, the first node is a device supporting dual connectivity.

For one embodiment, the first node supports MR-DC.

For one embodiment, the first node supports NR DC.

As one embodiment, the first node supports Intra-E-UTRA DC.

As an embodiment, the first node supports NE-DC.

For one embodiment, the first node supports NGEN-DC.

As one embodiment, the first node supports EN DC.

As an embodiment, the third Node comprises a Master Node (MN).

As one embodiment, the third node includes a MeNB.

As an embodiment, the third node comprises a CU.

For one embodiment, the third node comprises a node in an MCG.

As an embodiment, the second Node comprises a Secondary Node (SN).

As one embodiment, the second node comprises an SgNB.

As an embodiment, said second node comprises a DU.

For one embodiment, the second node comprises a node in an SCG.

As an embodiment, the second node is a base station device supporting LTE, and the third node is a base station device supporting NR.

As an embodiment, the second node and the third node are both base station devices supporting LTE.

As an embodiment, the second node is a base station device supporting NR, and the third node is a base station device supporting LTE.

As an embodiment, the second node is a base station device supporting NR, and the third node is a base station device supporting NR.

For one embodiment, the second node is a backup node of the third node.

As a sub-embodiment of this embodiment, the backup node is a pointer, and the second node and the third node have completely or partially the same configuration information.

As a sub-embodiment of this embodiment, the backup node means that the second node has configuration information of the third node for the first node.

Example 10

Embodiment 10 illustrates a schematic diagram of a first node simultaneously connecting with a second node and a third node according to another embodiment of the present application. In fig. 10, the first node maintains a connection with the second node and the third node simultaneously via two wireless links; two solid lines respectively represent a link between the first node and the second node and a link between the first node and the third node; the dashed line represents the link between the second node and the third node.

In embodiment 10, the second node is an auxiliary node; the third node is a primary node; the second node comprises TN base station equipment; the third node comprises an NTN base station device.

As one embodiment, the NTN base station includes an idling vehicle (Airborne vehicles).

As an example, the NTN base stations include HAPs (High availability Platforms).

As an embodiment, the NTN base station includes UAS (Unmanned Aircraft Systems).

As an embodiment, the NTN base station includes an LTA (light peak Air) UAS.

As an embodiment, the NTN base station includes an HTA (Heavier than Air) UAS.

As one example, the NTN base station includes space borne vehicles (Spaceborne vehicles).

As an embodiment, the NTN base station includes LEO (Low Earth orbit satellite).

As an example, the NTN base station comprises a MEO (Medium Earth orbit satellite).

As an embodiment, the NTN base station includes an HEO (high altitude adaptive orbit satellite).

As an embodiment, the NTN base station includes GEO (Geostationary Earth orbit).

As an example, the TN base station is a macro Cellular (Marco Cellular) base station.

As an embodiment, the TN base station is a Micro Cell base station.

As an example, the TN base station is a Pico Cell (Pico Cell) base station.

As an embodiment, the TN base station is a home base station (Femto).

As one embodiment, the TN base station comprises a base station fixed on the ground.

For one embodiment, the TN base station includes a base station that moves on the ground.

Example 11

Embodiment 11 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. 11. In fig. 11, a processing means 1100 in a first node comprises a first receiver 1101, a first transmitter 1102.

A first receiver 1101 that receives a first signaling;

a first transmitter 1102 that transmits the second signaling;

in embodiment 11, the first node is simultaneously connected to a second node and a third node, the third node is connected to a target core network node through a control plane, and the second node is not connected to the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledgement of the first signaling.

As an embodiment, the first transmitter 1102 transmits a first signal; wherein the first signal comprises first information relating to a wireless link status of the third node; the recipient of the first signal is the second node.

As an embodiment, a first timer is used to determine a first length of time; the first length of time is used to determine a maximum length of time for which the first node retains the second configuration information; the receiving time of the first signaling is used for determining the starting time of the first timer; the first length of time is related to a parameter of the third node or the second node.

For one embodiment, the first receiver 1101 receives a second signal; when a first condition is satisfied, the first transmitter 1102 transmits a third signal; wherein the measurement for the second signal is used to determine a first reference quality; the first condition relates to the first reference mass; the third signal is used to initiate random access; the first timer is in an active state when the third signal is sent.

As an embodiment, the first node releases the second configuration information when the first timer expires.

As an embodiment, third signaling is used to configure for the second node; the third signaling comprises first information relating to a context of the first node; the sender of the third signaling is the third node; the recipient of the third signaling is the second node.

As an embodiment, the fourth signaling is used to perform the first role switch; the first role transition is used to transition a control plane connection of the first node from the third node to the second node; the sender of the fourth signaling is the third node; the recipient of the fourth signaling is the second node.

For one embodiment, the first receiver 1101 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 of the present application.

For one embodiment, the first receiver 1101 includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, and the receive processor 456 of fig. 4.

For one embodiment, the first receiver 1101 includes the antenna 452, the receiver 454, and the receive processor 456 of fig. 4.

The first transmitter 1102, for one embodiment, includes the antenna 452, the transmitter 454, the multi-antenna transmit 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 transmitter 1102 includes the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, and the transmit processor 468 of fig. 4.

For one embodiment, the first transmitter 1102 includes the antenna 452, the transmitter 454, and the transmission processor 468 of fig. 4.

Example 12

Embodiment 12 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. 12. In fig. 12, the processing means 1200 in the second node comprises a second transmitter 1201 and a second receiver 1202.

A second transmitter 1201 for transmitting the first signaling;

a second receiver 1202 that receives the second signaling;

in embodiment 12, the second node and the third node provide services for the first node at the same time, the third node is connected to the target core network node through a control plane, and the second node is not connected to the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; the receiver of the first signaling and the sender of the second signaling are the first node.

For one embodiment, the second receiver 1202 receives a first signal; wherein the first signal comprises first information relating to a radio link status of the third node.

For one embodiment, a second signal is received by the first node; when a first condition is met, a third signal is transmitted by the first node; wherein the measurement for the second signal is used to determine a first reference quality; the first condition relates to the first reference mass; the third signal is used to initiate random access; when the third signal is sent, the first timer is in a running state; a sender of the second signal and a receiver of the third signal are the third nodes.

As an embodiment, the second configuration information is released by the first node when the first timer expires.

For one embodiment, the second receiver 1202 receives a third signaling; wherein the third signaling is used to configure for the second node; the third signaling comprises first information relating to a context of the first node; the sender of the third signaling is the third node.

As an embodiment, the second receiver 1202 receives a fourth signaling; wherein the fourth signaling is used to perform a first role switch; the first role transition is used to transition a control plane connection of the first node from the third node to the second node; the sender of the fourth signaling is the third node.

The second transmitter 1201 includes, for one embodiment, the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

The second transmitter 1201 includes, as an example, the antenna 420, the transmitter 418, the multi-antenna transmission processor 471 and the transmission processor 416 shown in fig. 4.

The second transmitter 1201 includes, as one example, the antenna 420, the transmitter 418, and the transmission processor 416 shown in fig. 4.

For one embodiment, the second receiver 1202 includes the antenna 420, the receiver 418, the multiple antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4.

For one embodiment, the second receiver 1202 includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, and the receive processor 470 shown in fig. 4.

For one embodiment, the second receiver 1202 includes the antenna 420, the receiver 418, and the receive processor 470 shown in fig. 4.

Example 13

Embodiment 13 illustrates a block diagram of a processing apparatus for use in a third node according to an embodiment of the present application; as shown in fig. 13. In fig. 13, a processing means 1300 in the third node comprises a third transmitter 1301 and a third receiver 1302.

A third transmitter 1301 which transmits the first signaling;

a third receiver 1302, receiving the second signaling;

in embodiment 13, a second node and a third node provide services for a first node at the same time, where the third node is connected to a target core network node through a control plane, and the second node is not connected to the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; the receiver of the first signaling and the sender of the second signaling are the first node.

As an embodiment, a first signal is transmitted by a first node; wherein the first signal comprises first information relating to a wireless link status of the third node; the recipient of the first signal is the second node.

As an example, the third transmitter 1301 transmits a second signal;

when the first condition is satisfied, the third receiver 1302 receives a third signal;

wherein the measurement for the second signal is used to determine a first reference quality; the first condition relates to the first reference mass; the third signal is used to initiate random access; when the third signal is transmitted, the first timer is in a running state.

As an embodiment, the third transmitter 1301 transmits a third signaling; wherein the third signaling is used to configure for the second node; the third signaling comprises first information relating to a context of the first node; the recipient of the third signaling is the second node.

As an embodiment, the third transmitter 1301 transmits a fourth signaling; wherein the fourth signaling is used to perform a first role switch; the first role transition is used to transition a control plane connection of the first node from the third node to the second node; the recipient of the fourth signaling is the second node.

The second transmitter 1301 includes, for one embodiment, the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

The second transmitter 1301 includes the antenna 420, the transmitter 418, the multi-antenna transmission processor 471 and the transmission processor 416 in fig. 4 of the present application, as an example.

The second transmitter 1301 includes the antenna 420, the transmitter 418, and the transmission processor 416 in fig. 4.

For one embodiment, the second receiver 1302 includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4.

For one embodiment, the second receiver 1302 includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, and the receive processor 470 shown in fig. 4.

For one embodiment, the second receiver 1302 includes the antenna 420, the receiver 418, and the receive processor 470 shown in 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 foregoing embodiments may be implemented in the form of hardware, or may be implemented in the form of software functional modules, and the present application is not limited to any specific combination of software and hardware. 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 aircraft, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle Communication equipment, wireless sensor, the network card, thing networking terminal, the RFID terminal, NB-IOT terminal, MTC (Machine Type Communication) terminal, EMTC (enhanced MTC) terminal, the data card, the network card, vehicle Communication equipment, low-cost cell-phone, wireless Communication equipment such as low-cost panel computer. The base station or 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 configured for wireless communication, comprising:

a first receiver to receive a first signaling, the first signaling comprising an RRC reconfiguration message;

a first transmitter for transmitting a second signaling;

the first node is simultaneously connected with a second node and a third node, the third node is connected with a target core network node through a control plane, and the second node is not connected with the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; a first timer is used to determine a first length of time; the first length of time is used to determine a maximum length of time for which the first node retains the second configuration information; a reception time of the first signaling is used to determine a start time of the first timer; the first length of time is related to a parameter of the third node or the second node.

2. The first node of claim 1, comprising:

the first transmitter transmits a first signal;

wherein the first signal comprises first information relating to a wireless link status of the third node; the recipient of the first signal is the second node.

3. The first node of claim 1 or 2, wherein the first configuration information comprises resources used for SCG; the second configuration information includes resources used for an MCG; the sender of the first signaling comprises the second node; the recipient of the second signaling comprises the second node.

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

the first receiver receives a second signal;

the first transmitter, when the first condition is satisfied, transmits a third signal;

5. The first node according to any of claims 1-4, wherein the first node releases the second configuration information when the first timer expires.

6. The first node according to any of claims 1-5, characterised in that third signalling is used for configuring for the second node; the third signaling comprises first information relating to a context of the first node; the sender of the third signaling is the third node; the recipient of the third signaling is the second node.

7. The first node according to any of claims 1 to 6, characterized in that fourth signaling is used to perform a first role switch; the first role transition is used to transition a control plane connection of the first node from the third node to the second node; the sender of the fourth signaling is the third node; the recipient of the fourth signaling is the second node.

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

a second transmitter to transmit a first signaling, the first signaling comprising an RRC reconfiguration message;

a second receiver that receives the second signaling;

the second node and the third node provide services for the first node at the same time, the third node is connected with a target core network node through a control plane, and the second node is not connected with the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; a receiver of the first signaling and a sender of the second signaling are the first node; a first timer is used to determine a first length of time; the first length of time is used to determine a maximum length of time for which the first node retains the second configuration information; the receiving time of the first signaling is used for determining the starting time of the first timer; the first length of time is related to a parameter of the third node or the second node.

9. The second node of claim 8, comprising:

the second receiver receives a first signal;

10. The second node according to claim 8 or 9, characterized in that the first configuration information comprises resources used for SCG; the second configuration information includes resources used for an MCG; the sender of the first signaling comprises the second node; the recipient of the second signaling comprises the second node.

11. The second node according to any of claims 8 to 10, characterized by:

a second signal is received by the first node; when a first condition is met, a third signal is transmitted by the first node;

wherein the measurement for the second signal is used to determine a first reference quality; the first condition relates to the first reference mass; the third signal is used to initiate random access; when the third signal is sent, the first timer is in a running state; the sender of the second signal and the receiver of the third signal are the third nodes.

12. Second node according to any of claims 8-11, wherein the second configuration information is released by the first node when the first timer expires.

13. The second node according to any of claims 8 to 12, characterized by:

the second receiver receives a third signaling;

14. The second node according to any of claims 8 to 13, characterized by:

the second receiver receives a fourth signaling;

15. A third node configured for wireless communication, comprising:

a third transmitter to transmit a first signaling, the first signaling comprising an RRC reconfiguration message;

a third receiver for receiving the second signaling;

16. The third node of claim 15, wherein the first signal is transmitted by the first node; wherein the first signal comprises first information relating to a radio link status of the third node; the recipient of the first signal is the second node.

17. The third node according to claim 15 or 16, characterized in that the first configuration information comprises resources used for SCG; the second configuration information includes resources used for an MCG; the sender of the first signaling comprises the second node; a recipient of the second signaling comprises the second node.

18. The third node according to any of claims 15-17, characterized by:

the third transmitter transmits a second signal;

the third receiver receiving a third signal when a first condition is satisfied;

19. The third node according to any of claims 15-18, wherein the first node releases the second configuration information when the first timer expires.

20. The third node according to any of claims 15-19, characterized by:

the third transmitter transmits a third signaling;

21. The third node according to any of claims 15-20, wherein:

the third transmitter transmits a fourth signaling;

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

receiving first signaling, wherein the first signaling comprises an RRC reconfiguration message;

sending a second signaling;

the first node is simultaneously connected with a second node and a third node, the third node is connected with a target core network node through a control plane, and the second node is not connected with the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; a first timer is used to determine a first length of time; the first length of time is used to determine a maximum length of time for which the first node retains the second configuration information; the receiving time of the first signaling is used for determining the starting time of the first timer; the first length of time is related to a parameter of the third node or the second node.

23. A method in a first node according to claim 22, comprising:

transmitting a first signal;

24. Method in a first node according to claim 22 or 23, characterised in that the first configuration information comprises resources used for SCG; the second configuration information includes resources used for an MCG; the sender of the first signaling comprises the second node; the recipient of the second signaling comprises the second node.

25. A method in a first node according to any of claims 22-24, comprising,

receiving a second signal;

transmitting a third signal when the first condition is satisfied;

26. Method in a first node according to any of claims 22-25, wherein the first node releases the second configuration information when the first timer expires.

27. Method in a first node according to any of the claims 22-26, characterised in that third signalling is used for configuring for the second node; the third signaling comprises first information relating to a context of the first node; the sender of the third signaling is the third node; the recipient of the third signaling is the second node.

28. A method in a first node according to any of claims 22-27, characterised in that fourth signalling is used for performing a first persona conversion; the first role transition is used to transition a control plane connection of the first node from the third node to the second node; the sender of the fourth signaling is the third node; the recipient of the fourth signaling is the second node.

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

transmitting first signaling, the first signaling comprising an RRC reconfiguration message;

receiving a second signaling;

the second node and the third node provide services for the first node at the same time, the third node is connected with a target core network node through a control plane, and the second node is not connected with the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledging the first signaling; a receiver of the first signaling and a sender of the second signaling are the first node; a first timer is used to determine a first length of time; the first length of time is used to determine a maximum length of time for which the first node retains the second configuration information; a reception time of the first signaling is used to determine a start time of the first timer; the first length of time is related to a parameter of the third node or the second node.

30. A method in a second node according to claim 29, comprising:

receiving a first signal;

wherein the first signal comprises first information relating to a wireless link status of the third node.

31. Method in a second node according to claim 29 or 30, characterised in that the first configuration information comprises resources used for SCG; the second configuration information includes resources used for an MCG; the sender of the first signaling comprises the second node; the recipient of the second signaling comprises the second node.

32. A method in a second node according to any of claims 29-31, comprising,

a second signal is received by the first node;

when a first condition is met, a third signal is transmitted by the first node;

33. Method in a second node according to claim 29, characterised in that the second configuration information is released by the first node when the first timer expires.

34. A method in a second node according to claim 29, comprising:

receiving a third signaling;

35. A method in a second node according to claim 29, comprising:

receiving a fourth signaling;

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

transmitting first signaling, wherein the first signaling comprises an RRC reconfiguration message;

receiving a second signaling;

the second node and the third node provide services for the first node at the same time, the third node is connected with a target core network node through a control plane, and the second node is not connected with the target core network node through the control plane; the first signaling comprises first configuration information, the first configuration information relating to the second node; when the first signaling is sent, the first node reserves second configuration information, wherein the second configuration information is related to the third node; the second configuration information is different from the first configuration information; the second signaling is used for acknowledgement with respect to the first signaling; a receiver of the first signaling and a sender of the second signaling are the first node; a first timer is used to determine a first length of time; the first length of time is used to determine a maximum length of time for which the first node retains the second configuration information; a reception time of the first signaling is used to determine a start time of the first timer; the first length of time is related to a parameter of the third node or the second node.

37. A method in a third node according to claim 36, comprising:

the first signal is transmitted by the first node;

38. A method in a third node according to claim 36 or 37, characterised in that the first configuration information comprises resources used for SCG; the second configuration information includes resources used for an MCG; the sender of the first signaling comprises the second node; the recipient of the second signaling comprises the second node.

39. A method in a third node according to any of claims 36-38, comprising,

transmitting a second signal;

receiving a third signal when the first condition is satisfied;

40. A method in a third node according to any of claims 36-39, wherein the first node releases the second configuration information when the first timer expires.

41. A method in a third node according to any of claims 36-40, comprising,

sending a third signaling;

42. A method in a third node according to any of claims 36-41, comprising,

sending a fourth signaling;