CN112437496B

CN112437496B - Method and apparatus in a communication node for wireless communication

Info

Publication number: CN112437496B
Application number: CN202010270106.9A
Authority: CN
Inventors: 刘铮; 杨中志
Original assignee: Quectel Wireless Solutions Co Ltd
Current assignee: Quectel Wireless Solutions Co Ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2024-02-09
Anticipated expiration: 2040-04-08
Also published as: CN112437496A

Abstract

A method and apparatus in a communication node for wireless communication is disclosed. The communication node receives RRCReconfiguration; determining a wireless connection failure; generating a VarRLF-report and selecting a first target cell in response to the determination of radio connection failure; obtaining effective system information of the first target cell; according to the effective system information of the first target cell, completing random access with the first target cell; setting a first sub-message in the VarLF-Report as the identification of the first target cell; when the first target cell belongs to a first candidate cell set, setting the type of the first target cell in the VarLF-Report as a first type, and sending RRCReconfigurationcomplete; setting the type of the first target cell in the VarRRLF-report as a second type when the first target cell is not one candidate cell in the first candidate cell set, and sending an RRCReestablishentrequest; the rrcrecon configuration indicates the first set of candidate cells; the RRCRECONfigure complete includes rlf-InfoAvailable. The method and the device are beneficial to network optimization.

Description

Method and apparatus in a communication node for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus for a radio link failure report.

Background

Radio link failure (Radio Link Failure, RLF) reports are used for coverage optimization and mobility robustness optimization, and the UE (user equipment) stores information about the latest RLF or handover failure (HandoverFailure, HOF) and indicates RLF report availability at each subsequent RRC (RadioResource Control ) connection re-establishment and handover cell until the network acquires the RLF report or discards 48 hours after RLF. Self-organizing networks (Self-Organising Networks, SON) include network Self-configuration and Self-optimization, 3GPP (the 3rd Generation Partnership Project, third generation partnership project) has passed the data collection enhancement "work item (work item, WI) of" NR (new radio, new air interface) SON/MDT (Minimization of Drive Tests, minimization drive test) at ran#86, supporting SON data collection characteristics including mobility enhancement optimization, successful handover reporting, UE history information in EN-DC (E-UTRA NR Dual Connectivity); MDT data collection characteristics are supported, including 2-stepACH (random Access channel) optimization, RLF reporting and the like. Release 16 investigated the standardization work of conditional handover (ConditionalHandover, CHO) in the "NR and LTE (Long Term Evolution ) mobility enhancement" work item, supporting radio link Recovery (Recovery) by CHO after RLF of the UE. Release 16 studied MCG (Master cell group) fast recovery (FastMCGRECover) in the "Dual connectivity and Carrier aggregation enhancement (ehancedDual Connectivity and Carrier Aggregation, eDCCA)" work project, supporting MCGRLF followed by MCG radio link recovery via SCG (Secondary cell group).

Disclosure of Invention

Before Release 16, when RLF occurs in the UE, the UE remains in RRC CONNECTED state (rrc_connected), selects one cell and performs RRC connection Reestablishment (Reestablishment), and if no suitable cell is selected, enters RRC IDLE state (rrc_idle). Release 16 introduces CHO and supports recovery of radio links by CHO, performs CHO procedures when the UE selected cell is a CHO candidate cell, otherwise performs RRC connection reestablishment. When the UE performs RRC connection reestablishment, the selected cell identity is stored in the radio link failure related message. However, when the UE selects a CHO candidate cell and performs CHO procedure, the radio connection failure is recovered by performing RRC connection reconfiguration without performing RRC connection re-establishment, and at this time, the UE does not store the selected cell identity, and the radio link failure related message stored by the UE only includes information when the radio connection failure has just occurred, so that when the base station receives the RLF report, network coverage optimization and mobility enhancement are not facilitated. Therefore, enhancements to the radio link failure report are needed.

In view of the above problems, the present application provides a solution. In the description of the problems, the recovery of a scene by CHO after RLF is adopted as an example; the method and the device are also applicable to a scene which is quickly recovered through MCG after MCG failure, and achieve the technical effect similar to that in a scene recovered through CHO after RLF. Furthermore, 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 in any node of the present application and the features in the embodiments may be applied to any other node. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

The application discloses a method used in a first node of wireless communication, comprising the following steps:

receiving the RRCRECONfigure; determining a wireless connection failure; generating a VarRLF-report and selecting a first target cell in response to the determination of radio connection failure; obtaining effective system information of the first target cell;

according to the effective system information of the first target cell, completing random access with the first target cell;

setting a first sub-message in the VarLF-Report as the identification of the first target cell; when the first target cell belongs to a first candidate cell set, setting the type of the first target cell in the VarLF-Report as a first type, and sending RRCReconfigurationcomplete; setting the type of the first target cell in the VarRRLF-report as a second type when the first target cell is not one candidate cell in the first candidate cell set, and sending an RRCReestablishentrequest;

Wherein the rrcrecon configuration indicates the first set of candidate cells; the RRCRECONfigure complete includes rlf-InfoAvailable.

As one embodiment, the problems to be solved by the present application include: according to the current specifications, when the UE fails in radio connection and selects one CHO cell, the RLF report sent by the UE to the base station cannot reflect the UE's behavior, i.e., the base station does not know whether the UE has entered the IDLE state or performed CHO.

As one embodiment, the problems to be solved by the present application include: according to the current specifications, when the UE fails in radio connection and selects one CHO cell, the identity of the selected CHO cell is not reported.

As one embodiment, the problems to be solved by the present application include: according to the current specifications, after the UE fails in radio connection and performs radio link failure recovery, the network cannot acquire information related to the radio link failure recovery from the RLF report of the UE, which is not beneficial to network coverage optimization and mobility enhancement.

As one embodiment, the features of the above method include: when the UE fails in radio connection and selects one CHO cell, the UE stores the identity of the selected CHO cell to VarRLF-Report.

As one embodiment, the features of the above method include: when the UE transmits a radio connection failure and selects one CHO cell, the UE stores the selected CHO cell type to VarRLF-Report.

As one embodiment, the features of the above method include: when the UE fails to transmit a radio connection and selects a non-CHO cell, the UE stores the type of the selected cell to VarRLF-Report.

As one example, the benefits of the above method include: and network coverage optimization is facilitated.

As one example, the benefits of the above method include: facilitating mobility enhancement.

As one example, the benefits of the above method include: providing a more efficient RLF report, avoiding uncertainty in the network's interpretation of the UE behavior.

According to one aspect of the application, the name of the first sub-message in the VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report.

As one embodiment, the features of the above method include: the VarRLF-Report includes the first sub-message, a name of the first sub-message indicating a type of the first target cell.

As one example, the benefits of the above method include: the type of the first target cell is visually indicated by the name of the field or IE.

According to one aspect of the application, the VarRLF-Report comprises a second sub-message, which is used to indicate the type of the first target cell in the VarRLF-Report.

As one embodiment, the features of the above method include: the first sub-message indicates the name of the first target cell and the second sub-message indicates the type of the first target cell.

As one example, the benefits of the above method include: the introduction of a new field or IE indicates the type of the first target cell.

As one example, the benefits of the above method include: the expandability is strong.

According to one aspect of the present application, it is characterized by comprising:

receiving a UEInformationRequest;

transmitting a UEInformationresponse;

wherein the ueinfo request is used to request the radio link failure related message; the ueinformation response includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report. As one embodiment, the features of the above method include: the RLF-Report includes information related to performing radio connection failure recovery after RLF.

As one embodiment, the features of the above method include: the RLF-Report includes information about CHO execution after RLF.

As one embodiment, the features of the above method include: if the UE executes CHO after RLF, when the network schedules UE information, the UE carries the identification of the CHO candidate cells selected after RLF in an RLF report.

According to one aspect of the present application, characterized in that,

when the first target cell is not one candidate cell in the first set of candidate cells, comprising:

receiving RRCReeastablischent;

transmitting RRCReestablischentcomplete;

wherein the RRCReestinglent is used to trigger the RRCReestinglentComplete, which includes the rlf-InfoAvailable.

According to one aspect of the present application, characterized in that,

the rrcrecon configuration comprises a first indicator and a first configuration, the first indicator being used to indicate whether the first node is allowed to apply the first configuration; the first configuration is related to RRC reconfiguration.

According to one aspect of the present application, characterized in that,

setting a third sub-message in the VarRLF-Report as a first condition when the first target cell belongs to the first candidate cell set, the first condition being used to determine a condition under which the first configuration is applied, the rrcrecon configuration indicating the first condition.

As one embodiment, the features of the above method include: if CHO is performed after the UE transmits RLF, varRLF-Report includes a first condition.

As one example, the benefits of the above method include: providing more efficient information to the network, facilitating mobility enhancement.

The application discloses a method used in a second node of wireless communication, comprising the following steps:

according to the effective system information of a first target cell, completing random access with the first target cell;

setting a first sub-message in a VarLF-Report as an identification of the first target cell; setting the type of the first target cell in the VarRLF-Report as a first type when the first target cell belongs to a first candidate cell set, and receiving RRCRECONfigure complete; setting the type of the first target cell in the VarRLF-Report to be a second type when the first target cell is not one candidate cell in the first candidate cell set, and receiving an RRCReestablishmentRequest;

Wherein the first set of candidate cells is indicated by rrcrecon configuration; in response to determining the radio connection failure, a VarRLF-Report is generated and a first target cell is selected; the valid system information of the first target cell is obtained; the VarRLF-Report is associated with a radio link failure related message; the RRCRECONfigure complete includes rlf-InfoAvailable.

According to one aspect of the present application, characterized in that,

the name of the first sub-message in the VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report.

According to one aspect of the present application, characterized in that,

the VarRLF-Report includes a second sub-message that is used to indicate the type of the first target cell in the VarRLF-Report.

transmitting a UEInformationRequest;

receiving a UEInformationresponse;

wherein the ueinfo request is used to request the radio link failure related message; the ueinformation response includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

According to an aspect of the application, when the first target cell is not one candidate cell in the first set of candidate cells, it comprises:

transmitting RRCReeastablischent;

receiving RRCReestablischentcomplete;

According to one aspect of the present application, characterized in that,

the rrcrecon configuration comprises a first indicator and a first configuration, the first indicator being used to indicate whether a recipient of the rrcrecon configuration is allowed to apply the first configuration; the first configuration is related to RRC reconfiguration.

According to one aspect of the present application, characterized in that,

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

a first receiver that receives the RRCRECONfigure; determining a wireless connection failure; generating a VarRLF-report and selecting a first target cell in response to the determination of radio connection failure; obtaining effective system information of the first target cell;

the first transceiver completes random access with the first target cell according to the effective system information of the first target cell;

a first transmitter, setting a first sub-message in the VarLF-Report as an identifier of the first target cell; when the first target cell belongs to a first candidate cell set, setting the type of the first target cell in the VarLF-Report as a first type, and sending RRCReconfigurationcomplete; setting the type of the first target cell in the VarRRLF-report as a second type when the first target cell is not one candidate cell in the first candidate cell set, and sending an RRCReestablishentrequest;

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

the second transceiver completes random access with the first target cell according to the effective system information of the first target cell;

the second receiver sets a first sub-message in the VarLF-Report as the identification of the first target cell; setting the type of the first target cell in the VarRLF-Report as a first type when the first target cell belongs to a first candidate cell set, and receiving RRCRECONfigure complete; setting the type of the first target cell in the VarRLF-Report to be a second type when the first target cell is not one candidate cell in the first candidate cell set, and receiving an RRCReestablishmentRequest;

wherein the first set of candidate cells is indicated by rrcrecon configuration; in response to determining a radio connection failure, the VarRLF-Report is generated and a first target cell is selected; the valid system information of the first target cell is obtained; the VarRLF-Report is associated with a radio link failure related message; the RRCRECONfigure complete includes rlf-InfoAvailable.

As an example, compared to the conventional solution, the present application has the following advantages:

when the UE generates RLF to select a cell, if the selected cell is a CHO candidate cell, and the UE can try CHO after being configured with RLF, the UE tries to execute CHO, when the CHO is executed, the UE stores the identification of the selected cell and carries the stored identification of the selected cell when the RLF is reported;

when the UE generates RLF to select a cell, if the selected cell is a CHO candidate cell, and the UE can try CHO after being configured with RLF, the UE tries to execute CHO, when the CHO is executed, the UE stores the CHO execution condition and carries the stored CHO execution condition when the RLF is reported;

storing the type of the selected cell when the RLF selection of one cell occurs to the UE, and carrying the type of the selected cell when RLF reporting is performed;

different cell types are distinguished using different names;

the different cell types are distinguished by an independent domain using the same name.

Drawings

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

FIG. 1 illustrates a flow chart of the transmission of RRCReconfiguration, RRCReconfigurationComplete and RRCReestablishentrequest according to one embodiment of the present application;

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

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

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

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

fig. 6 shows a schematic diagram of transmission of ueinfomation request and ueinfomation response according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of a process in which VarLF-Report is set, according to one embodiment of the present application;

fig. 8 shows a schematic diagram in which the name of a first sub-message in VarRLF-Report is used to determine the type of a first target cell in VarRLF-Report according to one embodiment of the application;

fig. 9 shows a schematic diagram in which a second sub-message is used to indicate the type of first target cell in VarRLF-Report according to one embodiment of the application;

FIG. 10 shows a schematic diagram of an RLF-Report including a first condition according to one embodiment of the present application;

FIG. 11 shows a schematic diagram of RRCRECONfigure including a first indicator and a first configuration according to an embodiment of the application;

FIG. 12 shows an illustration of VarLF-Report including a first condition according to one embodiment of the present application;

FIG. 13 illustrates a schematic diagram of a second set of sub-messages including K types of values according to one embodiment of the present application;

FIG. 14 illustrates a block diagram of a processing device for use in a first node according to one embodiment of the present application;

fig. 15 shows a block diagram of a processing arrangement for use in a second node according to an embodiment of the present application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of RRCReconfiguration, RRCReconfigurationComplete and rrcreestablischentrequest transmissions according to one embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step, and it is emphasized that the order of the blocks in the drawing does not represent temporal relationships between the represented steps.

In embodiment 1, a first node receives rrcrecon configuration in step 101; determining a wireless connection failure; generating a VarRLF-report and selecting a first target cell in response to the determination of radio connection failure; obtaining effective system information of the first target cell; in step 102, according to the effective system information of the first target cell, completing random access with the first target cell; setting a first sub-message in the VarRLF-Report as an identifier of the first target cell in step 103; when the first target cell belongs to a first candidate cell set, setting the type of the first target cell in the VarLF-Report as a first type, and sending RRCReconfigurationcomplete; setting the type of the first target cell in the VarRRLF-report as a second type when the first target cell is not one candidate cell in the first candidate cell set, and sending an RRCReestablishentrequest; wherein the rrcrecon configuration indicates the first set of candidate cells; the RRCRECONfigure complete includes rlf-InfoAvailable.

As an embodiment, the sender of the rrcrecon configuration comprises a maintaining base station of the first serving cell.

As a sub-embodiment of this embodiment, the first serving cell comprises a source serving cell.

As a sub-embodiment of this embodiment, the first serving Cell includes a Source Cell.

As a sub-embodiment of this embodiment, the first serving cell includes a serving cell in which a radio connection failure occurs.

As a sub-embodiment of this embodiment, the first serving Cell comprises a Primary Cell (PCell) of a Primary Cell group (MasterCellGroup, MCG).

As an embodiment, the first serving cell and the first target cell belong to the same PLMN (Public Land Mobile Network ).

As an embodiment, the RAT (Radio Access Technology ) adopted by the PLMN is NR (New Radio).

As an embodiment, the RAT employed by the PLMN is LTE (Long Term Evolution ).

As an embodiment, the rrcrecon configuration is used for configuring for the conditional handover (Conditional Handover, CHO).

As an embodiment, the rrcrecon configuration includes an RRC (Radio Resource Control ) Message (Message).

As an embodiment, the rrcrecon configuration includes all or part of an IE (Information Element ) of an RRC message.

As an example, the rrcrecon configuration includes all or part of the Field (Field) in an IE of an RRC message.

As an embodiment, the rrcrecon configuration includes ConditionalReconfiguration IE.

As an embodiment, the rrcrecon configuration includes a condcon configuration to addmodlist field.

As an embodiment, the rrcrecon configuration includes a condcon figtoremovelist field.

As an embodiment, the rrcrecon configuration includes an attemptcondereconfig field.

As an embodiment, the rrcrecon configuration includes a condcon configuration id IE.

As an embodiment, the rrcrecon configuration includes CondConfigToAddModList IE.

As an embodiment, the rrcrecon configuration includes a condcon configuration id field.

As an embodiment, the rrcrecondonconfiguration includes a condexecu-nd field.

As an embodiment, the rrcrecondonconfiguration includes a condrrcrecondonfig field.

As an embodiment, the sentence rrcrecon configuration indicates that the first set of candidate cells includes the following meanings: the rrcrecon configuration comprises all or part of the first set of candidate cells.

As an embodiment, the sentence rrcrecon configuration indicates that the first set of candidate cells includes the following meanings: the first set of candidate cells includes one or more domains in the rrcrecon configuration.

As an embodiment, the first set of candidate cells comprises a plurality of candidate serving cells.

As an embodiment, the first set of candidate cells comprises a CHO set of candidate cells.

As an embodiment, the radio connection failure includes MCG failure.

As one embodiment, the radio connection failure includes a primary cell group synchronization reconfiguration (re-configuration with sync) failure.

As one embodiment, the radio connection failure includes an RRC connection re-establishment (Reestablishment) failure.

As an embodiment, the radio connection failure comprises a radio link failure (Radio Link Failure, RLF).

As one embodiment, the radio connection Failure includes a Handover Failure (HOF).

As a sub-embodiment of this embodiment, the handover failure comprises the conditional handover failure.

As a sub-embodiment of this embodiment, the handover failure comprises a conventional handover failure.

As a sub-embodiment of this embodiment, the handover failure comprises DAPS (Dual Active Protocol Stack) handover failure.

As one embodiment, the determining that the wireless connection fails includes: the first node determines that a radio connection with the first serving cell fails.

As one embodiment, the first node determines a radio connection failure based on the radio measurements.

As a sub-embodiment of this embodiment, the wireless measurement is for the first serving cell.

As a sub-embodiment of this embodiment, the wireless measurement comprises a measurement synchronization signal (Synchronization Signal, SS).

As a sub-embodiment of this embodiment, the wireless measurements include Cell-specific reference signals (Cell-specific Reference Signal, CRS).

As a sub-embodiment of this embodiment, the wireless measurement includes a synchronization reference signal (Synchronization Signal Reference Signal, SS-RS).

As a sub-embodiment of this embodiment, the wireless measurement comprises a synchronization signal block (Synchronization Signal Block, SSB).

As a sub-embodiment of this embodiment, the wireless measurement includes a primary synchronization signal (Primary Synchronization Signal).

As a sub-embodiment of this embodiment, the wireless measurement comprises a secondary synchronization signal (Secondary Synchronization Signal, SSS).

As a sub-embodiment of this embodiment, the wireless measurements include measuring SS/PBCH blocks.

As a sub-embodiment of this embodiment, the wireless measurement includes measuring a channel state indication reference signal (Channel State Information Reference Signal, CSI-RS).

As a sub-embodiment of this embodiment, the wireless measurement comprises measuring a cell common physical downlink control channel (Physical Downlink Control Channel, PDCCH).

As a sub-embodiment of this embodiment, the wireless measurement includes measuring a physical broadcast channel (Physical Broadcast Channel, PBCH).

As one embodiment, when the timer T310 expires, the first node determines that the radio connection has failed; wherein the T310 is for a first serving cell.

As one embodiment, the first node determines that the radio connection fails when the timer T312 expires; wherein the T312 is for a first serving cell.

As one embodiment, the first node determines that the radio connection has failed when an indication of the maximum number of retransmissions is received from the MCG RLC (Radio Link Control ).

As one embodiment, the first node determines that the radio connection fails when receiving an indication from the MCG RLC to reach a maximum number of retransmissions of one SRB or DRB.

As an embodiment, the first node determines that the radio connection with the first serving cell fails when a random access problem indication from the MCG MAC (Medium Access Control ) is received and none of the timers T300, T301, T304, T311 and T319 are running.

As an embodiment, the first node determines that the radio connection with the first serving cell fails when a random access problem indication is received from the MCG MAC and none of the timers T300, T301, T304 and T311 are running.

As an embodiment, the first node determines that the radio connection with the first serving cell fails, the first serving cell belonging to the MCG.

As an embodiment, the VarRLF-Report is used to store the radio link failure related message.

As a sub-embodiment of this embodiment, the radio link failure related message comprises information of the RLF.

As a sub-embodiment of this embodiment, the radio link failure related message comprises information of the HOF.

As an embodiment, the sentence as a response to the determining that the radio connection failed, generating VarRLF-Report and selecting the first target cell comprises the following meanings: the generating VarRLF-Report and selecting a first target cell is triggered by the radio connection failure.

As an embodiment, the sentence as a response to the determining that the radio connection failed, generating VarRLF-Report and selecting the first target cell comprises the following meanings: when the first node fails the radio connection, a VarLF-Report is generated and a first target cell is selected.

As an embodiment, the phrase as a response to the determination of radio connection failure includes the following meanings: as a next step in said determining a radio connection failure.

As an embodiment, the phrase as a response to the determination of radio connection failure includes the following meanings: as a next action the first node asserts (Declare) the radio connection failure.

As an embodiment, the phrase as a response to the determination of radio connection failure includes the following meanings: a procedure performed when the MCG is considered to have failed the radio connection.

As one example, the phrase generating VarRLF-Report includes the following meanings: storing the radio link failure related message to the VarRLF-Report.

As one example, the phrase generating VarRLF-Report includes the following meanings: one or more fields in the VarRLF-Report are set to content related to the radio link failure.

As one example, the phrase generating VarRLF-Report includes the following meanings: and if the VarLF-Report stores the content, firstly clearing the content of the VarLF-Report, and then storing the radio link failure related message.

As an embodiment, the VarRLF-Report is implemented on a UE basis.

As one example, the VarRLF-Report includes a rlf-Report domain.

As an example, the VarRLF-Report includes a plmn-identity list field.

As one example, the VarRLF-Report includes a plmn-Identity domain.

As one example, the value of VarRLF-Report includes RLF-Report.

As an embodiment, the value of VarRLF-Report includes a first sub-message.

As an embodiment, the phrase selecting the first target cell includes the following meanings: the Cell selected by the first node through a Cell Selection (Cell Selection) procedure is the first target Cell.

As an embodiment, the phrase selecting the first target cell includes the following meanings: the first node determines the first target cell.

As an embodiment, the first target cell comprises a cell selected based on the measurement result.

As an embodiment, the first target cell comprises one neighbor cell of the source serving cell.

As an embodiment, the first target cell comprises a CHO candidate cell.

As an embodiment, the first target cell belongs to a first set of candidate cells.

As an embodiment, the first target cell does not belong to the first set of candidate cells.

As an embodiment, the sentence obtaining the valid system information of the first target cell includes the following meanings: and receiving effective system information of the first target cell.

As an embodiment, the sentence obtaining the valid system information of the first target cell includes the following meanings: updating the system information of the first node into the system information of the first target cell.

As an embodiment, the sentence obtaining the valid system information of the first target cell includes the following meanings: and applying the effective system information of the first target cell.

As one embodiment, the valid system information includes SIB1 (System Information Block, system information block 1) information.

As an embodiment, the valid system information includes MIB (Master Information Block ) information.

As one embodiment, the valid system information includes SI (System Information ).

As an embodiment, the active system information comprises a PLMN.

As an embodiment, the sentence setting the first sub-message in the VarRLF-Report as the identification of the first target cell includes the following meanings: the VarRLF-Report includes the first sub-message that is used to determine the identity of the first target cell.

As a sub-embodiment of this embodiment, the determination means an indication.

As a sub-embodiment of this embodiment, the determination is meant to include.

As an embodiment, the first sub-message includes one or more fields in the VarRLF-Report.

As an embodiment, the first sub-message comprises the identification of the first target cell.

As an embodiment, the first sub-message relates to an identification of the first target cell.

As an embodiment, the identification of the first target cell comprises a global cell identification (CellGlobalIdentity, CGI) of the first target cell.

As an embodiment, the identification of the first target cell comprises an evolved cell global identification (Evolved Cell Global Identifier, ECGI) of the first target cell.

As an embodiment, the identification of the first target cell comprises a physical cell identification (PhysicalCellIdentity, PCI) of the first target cell.

As an embodiment, the phrase that the first target cell belongs to the first set of candidate cells includes the following meanings: the first target cell is one candidate cell in the first set of candidate cells.

As an embodiment, the phrase that the first target cell belongs to the first set of candidate cells includes the following meanings: the first node selects a suitable cell and the selected cell is a CHO candidate cell.

As an embodiment, the sentence sets the type of the first target cell in the VarRLF-Report to a first type including the following meanings: the first sub-message in the VarRLF-Report is associated to a first type of the first target cell.

As an embodiment, the sentence sets the type of the first target cell in the VarRLF-Report to a first type including the following meanings: the type of the first target cell is indicated as a first type.

As an embodiment, the type of the first target cell comprises the first type when the first target cell belongs to the first set of candidate cells.

As an embodiment, the first type is used to determine that the reconfiguration procedure of the radio resource control is performed after the first target cell is selected.

As an embodiment, the first type is used to perform a recovery procedure of the radio connection failure after the first target cell is selected.

As an embodiment, the first type is used to determine that a Conditional Handover (CHO) procedure is performed after the first target cell is selected.

As an embodiment, the first type is used to determine that the conditional configuration procedure is performed after the first target cell is selected.

As a sub-embodiment of this embodiment, the conditional configuration comprises a Conditional Handover (CHO) of a primary cell (PCell).

As a sub-embodiment of this embodiment, the condition configuration includes a condition change (CPC) of a primary secondary cell (PSCell).

As an embodiment, the receiver of the rrcrecon configuration complete includes a maintaining base station of the first target cell.

As an embodiment, the receiver of the rrcrecon configuration complete includes a PCell where a radio link failure occurs.

As an embodiment, the rrcrecon configuration complete includes an RRC message.

As an embodiment, the rrcrecon configuration complete includes all or part of an RRC message IE.

As an embodiment, the rrcrecon configuration complete includes all or part of the fields in an IE of an RRC message.

As an example, the phrase rrcrecon configuration complete includes rlf-infoaavailable including the following meanings: the rlf-InfoAvailable is a field or IE in the RRCReconfigurationComplete.

As an example, the phrase rrcrecon configuration complete includes rlf-infoaavailable including the following meanings: when the content in the rrcrecouturecomplete is set, if the first node stores the radio link failure related message in the VarRLF-Report, the rlf-infoaAvailable is included in the rrcrecouturecomplete.

As an embodiment, the phrase that the first target cell is not one candidate cell of the first set of candidate cells comprises the following meanings: the first target cell is not a CHO candidate cell.

As an embodiment, the phrase that the first target cell is not one candidate cell of the first set of candidate cells comprises the following meanings: the first target cell does not belong to the first set of candidate cells.

As an embodiment, the phrase that the first target cell is not one candidate cell of the first set of candidate cells comprises the following meanings: the first node selects a suitable cell and the selected cell is not a CHO candidate cell.

As an embodiment, the sentence sets the type of the first target cell in the VarRLF-Report to a second type including the following meanings: the first sub-message in the VarRLF-Report is associated to a second type of the first target cell.

As an embodiment, the type of the first target cell is the second type when the first target cell does not belong to the first set of candidate cells.

As an embodiment, the second type is used to determine that the re-establishment procedure of the radio resource control is performed after the first target cell is selected.

As an embodiment, the second type is used to determine that the first target cell does not belong to the first set of candidate cells.

As an embodiment, the RRCReestablishmentRequest includes an RRC (Radio Resource Control ) Message (Message).

As an embodiment, the RRCReestablishmentRequest includes all or part of an IE (Information Element ) of an RRC message.

As an example, the RRCReestablishmentRequest includes all or part of the Field (Field) in an IE of an RRC message.

As an example, the RLF-infoaavailable is used to determine if RLF information is present in the VarRLF-Report.

As an example, the rlf-infoaavailable is used to determine if HOF information is present in the VarRLF-Report.

As an embodiment, the type of the first target cell comprises an effect of the first target cell.

As an embodiment, the type of the first target cell is used to determine a procedure to be subsequently performed by the first node.

As an embodiment, the type of the first target cell comprises that the first target cell is a cell used for performing a re-establishment of a radio resource control connection.

As an embodiment, the type of the first target cell comprises that the first target cell is a cell used for performing a reconfiguration of a radio resource control connection.

As an embodiment, the type of the first target cell comprises that the first target cell is a cell used for performing radio connection failure recovery.

As a sub-embodiment of this embodiment, the radio connection failure recovery includes recovery by CHO after the radio connection failure.

When the type of the first target cell in the VarRLF-Report is set to a second type, the VarRLF-Report includes the first sub-message.

As an embodiment, the first type and the second type are the same.

As an embodiment, the first type and the second type are different.

As an embodiment, the first type and the second type are used to determine that the first target cell is used to perform different procedures.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to one 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, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5 GSystem)/EPS (Evolved Packet System ) 200, or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access network) 202,5GC (5G Core Network)/EPC (Evolved Packet Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified Data Management, unified data management) 220, and internet service 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 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 gNB203 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 (transmit receive node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the 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. gNB203 is connected to 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (userplaneflection) 212, and P-GW (Packet Date Network Gateway, 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 Protocal, 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 assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.

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

As an embodiment, the UE201 supports transmissions in a Non-terrestrial network (Non-terrestrial Networks, NTN).

As an embodiment, the UE201 supports transmissions in a large latency difference network.

As an embodiment, the UE201 supports transmission of a terrestrial network (Terrestrial Networks, TN).

As an embodiment, the UE201 supports dual connectivity (Dual Connectivity, DC) transmissions.

As an embodiment, the UE201 is a user equipment (UserEquipment, UE).

As an embodiment, the UE201 is a terminal device (end).

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

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

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

As an embodiment, the gNB203 supports transmissions in a large latency difference network.

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

As an embodiment, the gNB203 supports Dual Connection (DC) transmissions.

As an embodiment, the gNB203 is a macro cell (marcocelluar) base station.

As one example, the gNB203 is a Micro Cell (Micro Cell) base station.

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

As an example, the gNB203 is a home base station (Femtocell).

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture according to one user plane and control plane of the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 with three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) 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 the data packets and handover support. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data 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 the various radio resources (e.g., resource blocks) in one cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), in which user plane 350 the radio protocol architecture is substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355 and MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service Data Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic.

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

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

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

As an embodiment, the rrcrecon configuration in the present application is generated in the RRC306.

As an embodiment, the rrcrecon configuration complete in the present application is generated in the RRC306.

As an embodiment, the rrcreestablischentrequest in the present application is generated in the RRC306.

As an embodiment, the rrcreestablischent in the present application is generated in the RRC306.

As an example, the rrcreestablischentcomplete in the present application is generated in the RRC306.

As an embodiment, the UEInformationRequest in the present application is generated in the RRC306.

As an embodiment, the ueinformation response in the present application is generated in the RRC306.

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

The second communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-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, upper layer data packets from the core network are provided to a controller/processor 475 at the second communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication 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., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal clusters 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 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, 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 a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.

In a transmission from the second communication device 410 to the first communication device 450, each receiver 454 receives a signal at the first communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for 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. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the 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 signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in 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 that were transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the 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 the transmission from the second communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In the transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. 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 it to an antenna 452.

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

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, the first communication device 450 at least: receiving the RRCRECONfigure; determining a wireless connection failure; generating a VarRLF-report and selecting a first target cell in response to the determination of radio connection failure; obtaining effective system information of the first target cell; according to the effective system information of the first target cell, completing random access with the first target cell; setting a first sub-message in the VarLF-Report as the identification of the first target cell; when the first target cell belongs to a first candidate cell set, setting the type of the first target cell in the VarLF-Report as a first type, and sending RRCReconfigurationcomplete; setting the type of the first target cell in the VarRRLF-report as a second type when the first target cell is not one candidate cell in the first candidate cell set, and sending an RRCReestablishentrequest; wherein the rrcrecon configuration indicates the first set of candidate cells; the RRCRECONfigure complete includes rlf-InfoAvailable.

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, produce acts comprising: receiving the RRCRECONfigure; determining a wireless connection failure; generating a VarRLF-report and selecting a first target cell in response to the determination of radio connection failure; obtaining effective system information of the first target cell; according to the effective system information of the first target cell, completing random access with the first target cell; setting a first sub-message in the VarLF-Report as the identification of the first target cell; when the first target cell belongs to a first candidate cell set, setting the type of the first target cell in the VarLF-Report as a first type, and sending RRCReconfigurationcomplete; setting the type of the first target cell in the VarRRLF-report as a second type when the first target cell is not one candidate cell in the first candidate cell set, and sending an RRCReestablishentrequest; wherein the rrcrecon configuration indicates the first set of candidate cells; the RRCRECONfigure complete includes rlf-InfoAvailable.

As one embodiment, the second communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 at least: setting a first sub-message in the VarLF-Report as an identification of a first target cell; setting the type of the first target cell in the VarRLF-Report as a first type when the first target cell belongs to a first candidate cell set, and receiving RRCRECONfigure complete; setting the type of the first target cell in the VarRLF-Report to be a second type when the first target cell is not one candidate cell in the first candidate cell set, and receiving an RRCReestablishmentRequest; according to the effective system information of the first target cell, completing random access with the first target cell; wherein the first set of candidate cells is indicated by rrcrecon configuration; in response to determining the radio connection failure, a VarRLF-Report is generated and a first target cell is selected; effective system information of the first target cell is obtained; the VarRLF-Report is associated with a radio link failure related message; the RRCRECONfigure complete includes rlf-InfoAvailable.

As one embodiment, the second communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: setting a first sub-message in the VarLF-Report as an identification of a first target cell; setting the type of the first target cell in the VarRLF-Report as a first type when the first target cell belongs to a first candidate cell set, and receiving RRCRECONfigure complete; setting the type of the first target cell in the VarRLF-Report to be a second type when the first target cell is not one candidate cell in the first candidate cell set, and receiving an RRCReestablishmentRequest; according to the effective system information of the first target cell, completing random access with the first target cell; wherein the first set of candidate cells is indicated by rrcrecon configuration; in response to determining the radio connection failure, a VarRLF-Report is generated and a first target cell is selected; effective system information of the first target cell is obtained; the VarRLF-Report is associated with a radio link failure related message; the RRCRECONfigure complete includes rlf-InfoAvailable.

As an embodiment, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 is used to receive rrcrecon configuration; the antenna 420, the transmitter 418, the transmit processor 416, at least one of the controller/processors 475 is used to transmit rrcrecon configuration.

As one implementation, the antenna 452, the transmitter 454, the transmit processor 468, the controller/processor 459 is used to transmit rrcrecon configuration complete; the antenna 420, the receiver 418, the receive processor 470, at least one of the controller/processors 475 is configured to receive rrcrecon configuration complete.

As an example, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 is used to receive rrcreestiblastbin; the antenna 420, the transmitter 418, the transmit processor 416, at least one of the controller/processors 475 is used to transmit RRCReestablishment.

As one implementation, the antenna 452, the transmitter 454, the transmit processor 468, the controller/processor 459 is used to transmit RRCReestablishmentRequest and rrcreestablishcomplete; the antenna 420, the receiver 418, the receive processor 470, at least one of the controller/processor 475 is used to receive RRCReestablishmentRequest and rrcreestablishcomplete.

As an example, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 is used to receive ueinfomation request; the antenna 420, the transmitter 418, the transmit processor 416, at least one of the controller/processors 475 is used to transmit ueinformationrequests.

As one implementation, the antenna 452, the transmitter 454, the transmit processor 468, the controller/processor 459 is used to transmit UEInformationResponse; the antenna 420, the receiver 418, the receive processor 470, at least one of the controller/processors 475 is used to receive ueinformation responses.

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.

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

As an embodiment, the first communication device 450 is a user device supporting dual connectivity.

As an embodiment, the first communication device 450 is a user device supporting a large delay difference.

As an embodiment, the first communication device 450 is a NTN-enabled user device.

As an embodiment, the first communication device 450 is a TN enabled user device.

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 a large delay difference.

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

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

Example 5

Embodiment 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the present application, as shown in fig. 5. The first node U01 is a user terminal; the second node N02 is a maintenance base station of the first target cell; the third node N03 is a maintenance base station of the source cell of the first node U01; it is specifically noted that the order in this example is not limiting of the order of signal transmission and the order of implementation in this application.

For the followingFirst node U01 RRCReconfi is received in step S5101The method includes the steps of determining, in step S5102, rrcrecescents, in step S5103, rrcrestableblentrequest, in step S5104, rrcrestableblentcomplete, in step S5105, ueformationrequest, in step S5106, and ueformationresponse, in step S5107.

For the followingSecond node N02Rrcreceonstructioncomplete is received in step S5201, rrcresitaglessrequest is received in step S5202, rrcresitaglessent is transmitted in step S5203, rrcresitaglesscomplete is received in step S5204, UEInformationRequest is transmitted in step S5205, and UEInformationResponse is received in step S5206.

For the followingThird node N03Rrcrecon configuration is transmitted in step S5301.

In embodiment 5, a radio connection failure is determined; generating a VarRLF-report and selecting a first target cell in response to the determination of radio connection failure; obtaining effective system information of the first target cell; according to the effective system information of the first target cell, completing random access with the first target cell; setting a first sub-message in the VarLF-Report as the identification of the first target cell; setting the type of the first target cell in the VarRLF-Report as a first type when the first target cell belongs to a first candidate cell set; setting the type of the first target cell in the VarRLF-report to be a second type when the first target cell is not one candidate cell in the first set of candidate cells; the rrcrecon configuration indicates the first set of candidate cells; the RRCReconfigurationcomplete comprises rlf-InfoAvailable; when the first target cell is not one of the first set of candidate cells, the rrcreestablishent is used to trigger the rrcreestablishcomplete, the rrcreestablishcomplete comprising the rlf-infoaavailable; the ueinfo request is used to request the radio link failure related message; the ueinformation response includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

As an embodiment, the sender of the rrcrecon configuration includes a second node N02.

As an embodiment, the sender of the rrcrecon configuration includes a third node N03.

As an embodiment, the second node N02 comprises a maintenance base station of a CHO candidate cell.

As an embodiment, the second node N02 includes a maintaining base station of the PCell.

As an embodiment, the third node N03 includes a maintenance base station of a PSCell.

As an embodiment, the third node N03 comprises a maintaining base station of the first serving cell.

As an embodiment, the first node U01 and the second node N02 fail in the radio connection.

As an embodiment, the first node U01 and the third node N03 fail in the radio connection.

As an embodiment, the first receiver generates the radio link failure related message.

As an embodiment, the first transmitter generates the radio link failure related message.

As an embodiment, the first node U01 generates the radio link failure related message.

As one embodiment, the name of the first sub-message in the sentence VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report including the following meanings: the type of the first target cell in the VarRLF-Report includes a name of the first sub-message in the VarRLF-Report.

As one embodiment, the name of the first sub-message in the sentence VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report including the following meanings: the name of the first sub-message in the VarRLF-Report is used to indicate the type of the first target cell in the VarRLF-Report.

As one embodiment, the name of the first sub-message in the sentence VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report including the following meanings: the type of the first target cell in the VarRLF-Report is distinguished by the name of the first sub-message in the VarRLF-Report.

As an embodiment, the name of the first sub-message is associated to the first type when the first target cell is used to perform a reconfiguration of the radio resource control connection.

As an embodiment, when the first target cell belongs to the first candidate cell set, setting a first sub-message in the VarRLF-Report as an identifier of the first target cell, setting a type of the first target cell in the VarRLF-Report as a first type, and determining a name of the first sub-message in the VarRLF-Report as the type of the first target cell in the VarRLF-Report.

As an embodiment, when the first target cell belongs to the first set of candidate cells, the name of the first sub-message comprises a first name, the first name being used to indicate that the type of the first target cell in the VarRLF-Report is a first type.

As a sub-embodiment of this embodiment, the first name indicates that the first target cell is associated with the first type.

As a sub-embodiment of this embodiment, the first name indicates that the first target cell is CHO-related.

As a sub-embodiment of this embodiment, the first name indicates that the first target cell is associated with a conditional configuration.

As a sub-embodiment of this embodiment, the first name indicates that the first target cell is associated with RRC connection reconfiguration.

As a sub-embodiment of this embodiment, the first name indicates that the first target cell is associated with RLF recovery.

As a sub-embodiment of this embodiment, the first name includes a resestablishmentcellid.

As a sub-embodiment of this embodiment, the first name includes a conditional handovercellid.

As a sub-embodiment of this embodiment, the first name includes a conditional handleovercellid.

As a sub-embodiment of this embodiment, the first name includes a conditional on configuration cell id.

As a sub-embodiment of this embodiment, the first name includes a recoverycllid.

As a sub-embodiment of this embodiment, the first name includes previouspclellid.

As a sub-embodiment of this embodiment, the first name includes faiedPCellId.

As a sub-embodiment of this embodiment, the first name includes a selected cellid.

As an embodiment, the name of the first sub-message is associated to the second type when the first target cell is used to perform the re-establishment of the radio resource control connection.

As an embodiment, when the first target cell is not one candidate cell in the first set of candidate cells, setting a first sub-message in the VarRLF-Report as an identification of the first target cell, setting a type of the first target cell in the VarRLF-Report as a second type, and the name of the first sub-message in the VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report.

As one embodiment, when the first target cell is not one of the first set of candidate cells, the name of the first sub-message includes a second name, the second name being used to indicate that the type of the first target cell in the VarRLF-Report is a second type.

As a sub-embodiment of this embodiment, the second name indicates that the first target cell is associated with the second type.

As a sub-embodiment of this embodiment, the second name indicates that the first target cell is related to RRC connection re-establishment.

As a sub-embodiment of this embodiment, the second name includes a resestablishmentcellid.

As a sub-embodiment of this embodiment, the second name includes a conditional handovercellid.

As a sub-embodiment of this embodiment, the second name includes a conditional handleovercellid.

As a sub-embodiment of this embodiment, the second name includes a conditional on configuration cell id.

As a sub-embodiment of this embodiment, the second name includes a recoverycllid.

As a sub-embodiment of this embodiment, the second name includes previouspclellid.

As a sub-embodiment of this embodiment, the second name includes faiedPCellId.

As a sub-embodiment of this embodiment, the second name includes a selected cellid.

As an embodiment, the previousPCellid is used to determine that the type of the first target cell in the VarRLF-Report is a first type; the resessablischentcellid is used to determine that the type of the first target cell in the VarRLF-Report is a second type.

As one embodiment, the faiedPCellid is used to determine that the type of the first target cell in the VarRLF-Report is a first type; the resessablischentcellid is used to determine that the type of the first target cell in the VarRLF-Report is a second type.

As a sub-embodiment of the above embodiment, when the first target cell belongs to the first candidate cell set, connectionFailureType in the first information block is set to RLF.

As one embodiment, when the first target cell belongs to the first set of candidate cells, the VarRLF-Report includes the first sub-message and does not include the second sub-message; the second variable includes the first sub-message and does not include the second sub-message when the first target cell is not one of the first set of candidate cells.

As an embodiment, the second sub-message indicates whether the first target cell belongs to a CHO candidate cell.

As an embodiment, the second sub-message indicates whether the first target cell belongs to one cell of the first set of candidate cells.

As an embodiment, the second sub-message indicates the role of the first target cell.

As an embodiment, the second sub-message indicates that the first target cell is used for RRC connection re-establishment.

As an embodiment, the second sub-message indicates that the first target cell is used for conditional handover.

As an embodiment, the second sub-message indicates the type of the first target cell in the radio link failure related message from among the first type and the second type.

As an embodiment, the second sub-message indicates a type of re-establishment of the radio resource control connection.

As an embodiment, the second sub-message comprises a field in the VarRLF-Report.

As an embodiment, the value of the second sub-message comprises a numeric value of an enumerated type.

As an embodiment, the second sub-message includes one or more fields in the VarRLF-Report.

As an embodiment, the value of VarRLF-Report includes a second sub-message.

As one embodiment, the name of the second sub-message in the VarRLF-Report includes a reestiskishenttype.

As one embodiment, the name of the second sub-message in the VarRLF-Report includes a resessablischentcellidtype.

As one embodiment, the name of the second sub-message in the VarRLF-Report includes a selected cellidtype.

As one embodiment, the name of the second sub-message in the VarRLF-Report includes a selected celltype.

As one embodiment, the name of the second sub-message in the VarRLF-Report includes a recoupertype.

As an embodiment, the value of the second sub-message includes a first type (type 1).

As an embodiment, the value of the second sub-message includes a second type (type 2).

As an embodiment, the value of the second sub-message comprises a resessabism.

As an embodiment, the value of the second sub-message includes a conditional handle.

As an embodiment, the value of the second sub-message includes a conditional configuration.

As an embodiment, the value of the second sub-message comprises cho.

As an embodiment, the value of the second sub-message comprises recovery.

As an embodiment, the value of the second sub-message comprises mcgreovery.

As an embodiment, the name of the first sub-message is not used to distinguish the type of the first target cell when the second sub-message is present.

As one embodiment, when the second sub-message exists, the name of the first sub-message includes a resessablischentcellid.

As one embodiment, when the second sub-message exists, the name of the first sub-message includes a selected cellid.

As an embodiment, when the second sub-message exists, the name of the first sub-message includes a recoverycllid.

As an embodiment, the second sub-message exists when the type of the first target cell in the VarRLF-Report is set to a first type.

As one embodiment, the second sub-message does not exist when the type of the first target cell in the VarRLF-Report is set to a first type.

As an embodiment, the second sub-message exists when the type of the first target cell in the VarRLF-Report is set to a second type.

As one embodiment, the second sub-message does not exist when the type of the first target cell in the VarRLF-Report is set to a second type.

As an embodiment, the RRCReestablishment includes an RRC (Radio Resource Control ) Message (Message).

As an embodiment, the RRCReestablishment includes all or part of an IE (Information Element ) of an RRC message.

As an example, the rrcreestablischent includes all or part of the Field (Field) in an IE of an RRC message.

As an embodiment, the sentence the rrcreestablischent is used to trigger the rrcreestablischentcomplete to include the following meanings: and sending the RRCReestingmentcomplete as a response for receiving the RRCReestingment.

As an embodiment, the sentence the rrcreestablischent is used to trigger the rrcreestablischentcomplete to include the following meanings: the rrcreestaminmentcomplete is used to acknowledge for the rrcreestaminent.

As an embodiment, the rrcreestablischentcomplete includes an RRC message.

As an embodiment, the rrcreestablischentcomplete includes all or part of an RRC message IE.

As an embodiment, the rrcreestablischentcomplete includes all or part of the fields in an IE of an RRC message.

As an embodiment, the sentence the rrcreescitablentcomplete includes the rlf-infoaavailable includes the following meanings: the rlf-InfoAvailable is a domain in the RRCReestagmentcomplete.

As an embodiment, the sender of the ueinfomation request is the same as the second node N02 in the present application.

As an embodiment, the sender of the ueinfomation request is different from the second node N02 in the present application.

As an embodiment, the sender of the ueinfomation request is the same as the third node N03 in the present application.

As an embodiment, the sender of the ueinfomation request is different from the third node N03 in the present application.

As an embodiment, the sender of the ueinfomation request includes a maintaining base station of a serving cell to which the first node U01 is currently connected.

As a sub-embodiment of this embodiment, the serving cell to which the first node U01 is currently connected is different from the first target cell.

As a sub-embodiment of this embodiment, the serving cell to which the first node U01 is currently connected is the same as the first target cell.

As a sub-embodiment of this embodiment, the serving cell to which the first node U01 is currently connected is different from the first serving cell.

As a sub-embodiment of this embodiment, the serving cell to which the first node U01 is currently connected is the same as the first serving cell.

As an embodiment, the ueinfomation request includes an RRC message.

As an embodiment, the ueinfo request includes all or part of an IE of the RRC message.

As an embodiment, the ueinfo request includes all or part of the fields in one IE of the RRC message.

As an embodiment, the ueinfomation request includes an RLF-ReportReq IE.

As an embodiment, the ueinfomation request is used to trigger the transmission of the ueinfomation response.

As an embodiment, the sentence ueinfo request is used to request the radio link failure related message including the following meanings: one field in the ueinfo request is used to determine the request for the radio link failure related message.

As an embodiment, the ueinfomation request is used to determine a request for the radio link failure recovery related message.

As an embodiment, the ueinfomation request is used to determine a request for a successful handover related message.

As an embodiment, the ueinfomation request includes a rlf-ReportReq field.

As an embodiment, the receiver of the third set of messages is the same as the sender of the ueinfo request.

As an embodiment, the ueinfo response includes an RRC message.

As an embodiment, the ueinfo response includes all or part of an RRC message IE.

As an embodiment, the ueinfo response includes all or part of the fields in an IE of an RRC message.

As an embodiment, the ueinfomation response comprises an RLF-Report field.

As an embodiment, the ueinfomation response includes an nr-RLF-Report field.

As an embodiment, the ueinfomation response includes an eutra-RLF-Report field.

As an example, the ueinfomation response includes a rlf-Report field.

As an embodiment, the sentence said UEInformationResponse comprises RLF-Report comprising the following meanings: the ueinformation response includes all or part of the RLF-Report.

As an embodiment, the sentence said UEInformationResponse comprises RLF-Report comprising the following meanings: the RLF-Report is one or more fields in the ueinfo response.

As an embodiment, the RLF-Report includes a RLF-Report field.

As an embodiment, the sentence RLF-Report related to the radio link failure related message comprises the following meanings: the RLF-Report includes all of the radio link failure related messages.

As an embodiment, the sentence RLF-Report related to the radio link failure related message comprises the following meanings: the RLF-Report includes a portion of the radio link failure related message.

As an embodiment, the sentence RLF-Report related to the radio link failure related message comprises the following meanings: the RLF-Report is set according to the radio link failure related message.

As an embodiment, the sentence RLF-Report related to the radio link failure related message comprises the following meanings: the RLF-Report is used to carry the radio link failure related message.

As an embodiment, the sentence wherein the RLF-Report comprises the value of VarRLF-Report comprises the following meanings: the RLF-Report in the ueinformation response is set according to the value in the VarRLF-Report.

As an embodiment, the sentence wherein the RLF-Report comprises the value of VarRLF-Report comprises the following meanings: the value in the RLF-Report in the ueinformation response is set to the value in the VarRLF-Report.

As one example, the value of the VarRLF-Report includes rlf-Report.

As one embodiment, the value of the VarRLF-Report includes the radio link failure related message stored in the VarRLF-Report.

As an embodiment, the sentence wherein the RLF-Report comprises the value of VarRLF-Report comprises the following meanings: setting the RLF-Report to the value of the VarRLF-Report.

As an embodiment, the dashed box F1 is optional.

As an embodiment, the dashed box F2 is optional.

As one embodiment, dashed box F1 exists and dashed box F2 does not exist.

As one embodiment, the dashed box F1 does not exist and the dashed box F2 exists.

Example 6

Embodiment 6 illustrates a schematic diagram of completing random access with a first target cell according to one embodiment of the present application, as shown in fig. 6. In fig. 6, the first node U01 is a user terminal; the second node N02 is a maintenance base station of the first target cell; it is specifically noted that the order in this example is not limiting of the order of signal transmission and the order of implementation in this application.

For the followingFirst node U01In step S6101, msg1 is transmitted, in step S6102, msg2 is received, in step S6103, msg3 is received, in step S6104, msg4 is transmitted, in step S6105, msgA is transmitted, and in step S6106, msgB is received.

For the followingSecond node N02Msg1 is received in step S6201, msg2 is transmitted in step S6202, msg3 is received in step S6203, msg4 is transmitted in step S6204, msgA is received in step S6205, and MsgB is transmitted in step S5206.

As an embodiment, the random access comprises a four-step random access (4-step RACH).

As an embodiment, the random access comprises a two-step random access (2-step RACH).

As an embodiment, the random access comprises a contention-based random access (Contention Based Random Access, CBRA).

As an embodiment, the random access comprises a non-contention based random access (Contention Free Random Access, CFRA).

As an embodiment, the Msg1, the Msg2, the Msg3 and the Msg4 are used to perform contention-based four-step random access.

As a sub-embodiment of this embodiment, the Msg1 comprises a first preamble sequence, which is selected by the first node U01.

As a sub-embodiment of this embodiment, the Msg1 comprises a Preamble.

As a sub-embodiment of this embodiment, the Msg2 comprises a random access response (Random Access Response, RAR).

As a sub-embodiment of this embodiment, the Msg2 includes uplink resources that are used for Msg3.

As a sub-embodiment of this embodiment, the Msg3 comprises a first uplink scheduled transmission.

As a sub-embodiment of this embodiment, the Msg3 comprises an RRC handover confirm message.

As a sub-embodiment of this embodiment, the Msg4 is used for contention resolution, the Msg4 comprising a C-RNTI (Cell Radio Network Temporary Identifier ) of the first node U01.

As an embodiment, the Msg1 and the Msg2 are used to perform non-contention based two-step random access.

As a sub-embodiment of this embodiment, the Msg1 comprises a second preamble sequence allocated by a maintaining base station of a serving cell of the first node.

As an embodiment, the MsgA and the MsgB are used to perform two-step random access.

As a sub-embodiment of this embodiment, the MsgA includes the Msg1 and the Msg3.

As a sub-embodiment of this embodiment, the MsgB includes the Msg2 and the Msg4.

As one embodiment, dashed box F3 exists, and dashed box F4 and dashed box F5 do not exist.

As an embodiment, a dashed box F3 and a dashed box F4 are present, and a dashed box F5 is absent.

As one embodiment, dashed box F5 exists, and dashed box F3 and dashed box F4 do not exist.

Example 7

Embodiment 7 illustrates a schematic diagram of a process in which VarRLF-Report is set according to one embodiment of the present application, as shown in fig. 7. In fig. 7, each block represents a step, and it is emphasized that the order of the blocks in the drawing does not represent temporal relationships between the represented steps.

In embodiment 7, the first node receives rrcrecon configuration in step S701; determining a radio connection failure in step S702; generating a VarRLF-Report and selecting a first target cell in step S703; judging in step S704 whether the first target cell belongs to a first candidate cell set; if the first target cell belongs to the first candidate cell set, setting a first sub-message in the VarRLF-Report as an identifier of the first target cell in step S705 (a), and setting a type in the first target cell in the VarRLF-Report as a first type; transmitting rrcrecon configuration complete in step S706 (a); if the first target cell does not belong to the first candidate cell set, setting a first sub-message in the VarRLF-Report as an identifier of the first target cell in step S705 (b), and setting a type in the first target cell in the VarRLF-Report as a second type; in step S706 (b), an RRCReestablishmentRequest is transmitted.

As an embodiment, the step S705 (a) and the step S706 (a) occur simultaneously.

As an embodiment, the step S705 (a) occurs before the step S706 (a).

As an embodiment, the step S705 (a) occurs after the step S706 (a).

As an embodiment, the step S705 (b) and the step S706 (b) occur simultaneously.

As an embodiment, the step S705 (b) occurs before the step S706 (b).

As an embodiment, said generating VarRLF-Report occurs before said selecting said first target cell.

As an embodiment, said generating VarRLF-Report occurs after said selecting said first target cell.

As an embodiment, said generating VarRLF-Report and said selecting said first target cell occur simultaneously.

As an embodiment, when the first node determines that the first target cell belongs to the first candidate cell set, setting a first sub-message in the VarRLF-Report as an identifier of the first target cell, and setting a type in the first target cell in the VarRLF-Report as a first type.

As a sub-embodiment of this embodiment, the sentence comprises the following meanings when the first node determines that the first target cell belongs to the first set of candidate cells: when the first node determines that the first target cell belongs to a first set of candidate cells and the first node determines that the first target cell belongs to the first set of candidate cells.

As a sub-embodiment of this embodiment, the sentence comprises the following meanings when the first node determines that the first target cell belongs to the first set of candidate cells: when the first node determines to perform a conditional handoff.

As a sub-embodiment of this embodiment, the sentence comprises the following meanings when the first node determines that the first target cell belongs to the first set of candidate cells: when the first node performs conditional switching is completed.

As a sub-embodiment of this embodiment, the sentence comprises the following meanings when the first node determines that the first target cell belongs to the first set of candidate cells: when the rrcrecon configuration complete is sent.

As a sub-embodiment of this embodiment, the sentence comprises the following meanings when the first node determines that the first target cell belongs to the first set of candidate cells: the rrcrecon configuration complete is sent before.

As a sub-embodiment of this embodiment, the sentence comprises the following meanings when the first node determines that the first target cell belongs to the first set of candidate cells: after the rrcrecon configuration complete is sent.

As an embodiment, when the first node determines that the first target cell does not belong to the first candidate cell set, setting a first sub-message in the VarRLF-Report as an identifier of the first target cell, and setting a type in the first target cell in the VarRLF-Report as a second type.

As a sub-embodiment of this embodiment, the sentence comprises the following meanings when the first node determines that the first target cell does not belong to the first set of candidate cells: when the RRCReestablishmentRequest is sent.

As a sub-embodiment of this embodiment, the sentence comprises the following meanings when the first node determines that the first target cell does not belong to the first set of candidate cells: after the rrcreestablischentrequest is sent.

As a sub-embodiment of this embodiment, the sentence comprises the following meanings when the first node determines that the first target cell does not belong to the first set of candidate cells: the rrcreestablischentrequest is sent before.

Example 8

Embodiment 8 illustrates a schematic diagram in which the name of the first sub-message in VarRLF-Report is used to determine the type of the first target cell in VarRLF-Report, as shown in fig. 8, according to one embodiment of the application. In fig. 8, a dashed box represents a first sub-message including a first sub-field and a second sub-field; the solid line box represents the RLF-Report domain description; ellipses represent other fields or IEs.

In embodiment 8, the name of the first sub-message in the VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report; the first sub-message includes a first sub-field and a second sub-field; the ueinformation response includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

As an embodiment, fig. 8 is a schematic diagram of a message structure of the ueinformation response.

As an embodiment, the-ASN 1START represents the START of an asn.1 message.

As an example, the-TAG-ueinfo information response-START indicates the START of the ueinfo information response message.

As an example, said-TAG-ueinfo information response-STOP indicates the end of the ueinfo information response message.

As an embodiment, the RLF-Report includes a partial field in the ueinfo response.

As an embodiment, the first sub-field is used to indicate that the type of the first target cell is a first type.

As an embodiment, the first subdomain is one of VarRLF-Report.

As an embodiment, the first subdomain comprises the first name.

As an embodiment, the second sub-field is used to indicate that the type of the first target cell is a second type.

As an embodiment, the second subdomain is one of VarRLF-Report.

As an embodiment, the second sub-field comprises the second name.

As an embodiment, the first sub-field is set to the identification of the first target cell when the first target cell belongs to the first set of candidate cells.

As an embodiment, the first sub-field is not set to the identification of the first target cell when the first target cell does not belong to the first set of candidate cells.

As a sub-embodiment of this embodiment, the first sub-field is an arbitrary value.

As a sub-embodiment of this embodiment, the first sub-field is default.

As a sub-embodiment of this embodiment, the first sub-field is a preconfigured value.

As an embodiment, when the first target cell is not one candidate cell of the first set of candidate cells, the name of the second sub-field is set to the identification of the first target cell.

As an embodiment, when the first target cell is one candidate cell of the first set of candidate cells, the name of the second sub-field is not set to the identification of the first target cell.

As a sub-embodiment of this embodiment, the second sub-field is an arbitrary value.

As a sub-embodiment of this embodiment, the second sub-field is default.

As a sub-embodiment of this embodiment, the second sub-field is a preconfigured value.

As an embodiment, the first subfield and the second subfield are not set at the same time.

As an embodiment, the first subfield and the second subfield are set simultaneously.

As an embodiment, the first sub-field and the second sub-field are not reported at the same time.

As an embodiment, the first sub-field and the second sub-field are reported simultaneously.

Example 9

Embodiment 9 illustrates a schematic diagram in which a second sub-message is used to indicate the type of the first target cell in the VarRLF-Report, as shown in fig. 9, according to one embodiment of the present application. In fig. 9, a solid line box represents the RLF-Report domain description; ellipses represent other fields or IEs.

In embodiment 9, setting a first sub-message in the VarRLF-Report as an identity of the first target cell; the VarRLF-Report includes a second sub-message that is used to indicate a type of the first target cell in the VarRLF-Report; ue information response includes RLF-Report, which is related to the radio link failure related message, including the value of the VarRLF-Report.

As an embodiment, fig. 9 is a schematic diagram of a message structure of the ueinformation response.

As an embodiment, the-ASN 1START represents the START of an asn.1 message.

As an embodiment, the-ASN 1STOP represents the end of the asn.1 message.

As an embodiment, the first sub-message is used to indicate the identity of the first target cell.

As an embodiment, the second sub-message is used to refer to the type of the first target cell.

As an embodiment, the value of the second sub-message includes a first type and a second type.

As one embodiment, the VarRLF-Report includes the first sub-message and the second sub-message when the first target cell belongs to the first set of candidate cells; the VarRLF-Report includes the first sub-message and the second sub-message when the first target cell does not belong to the first set of candidate cells.

As an embodiment, when the first target cell belongs to the first candidate cell set, a first sub-message in the VarRLF-Report is set as an identity of the first target cell, and the second sub-message is used to indicate the type of the first target cell in the VarRLF-Report, and the type of the first target cell in the VarRLF-Report is set as a first type.

As an embodiment, when the first target cell does not belong to the first candidate cell set, a first sub-message in the VarRLF-Report is set as an identity of the first target cell, and the second sub-message is used to indicate the type of the first target cell in the VarRLF-Report, and the type of the first target cell in the VarRLF-Report is set as a second type.

Example 10

Embodiment 10 illustrates a schematic diagram of an RLF-Report according to the present application including a first condition, as shown in fig. 10. In fig. 10, a solid line box represents the RLF-Report domain description; ellipses represent other fields or IEs.

In embodiment 10, setting a first sub-message in the VarRLF-Report as an identity of the first target cell; the name of the first sub-message in the VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report; setting a third sub-message in the VarRLF-Report as a first condition when the first target cell belongs to the first candidate cell set; the ueinformation response includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

As an example, fig. 10 is a schematic diagram of a message structure of the ueinformation response.

As an embodiment, the-ASN 1START represents the START of an asn.1 message.

As an embodiment, the third sub-message includes one or more fields in the VarRLF-Report.

As an embodiment, the value of VarRLF-Report includes a first sub-message.

As an embodiment, the first sub-field and the third sub-message are included in the RLF-Report when the first target cell belongs to the first set of candidate cells.

As a sub-embodiment of this embodiment, the first sub-field is used to indicate the first target cell, the type of which is a first type.

As a sub-embodiment of this embodiment, the third sub-message is used to indicate the first condition.

As an embodiment, the second sub-domain is included in the RLF-Report and the third sub-message is not included when the first target cell does not belong to the first set of candidate cells.

As a sub-embodiment of this embodiment, the second sub-field is used to indicate the first target cell, the type of which is a second type.

As an embodiment, one of the first subfield and the second subfield is set.

As an embodiment, the first sub-field and the third sub-message belong to the same field.

As an embodiment, the first sub-field and the third sub-message are set simultaneously.

As one embodiment, the VarRLF-Report includes the first sub-message and the second sub-message when the first target cell belongs to the first set of candidate cells; the second variable includes the first sub-message and does not include the second sub-message when the first target cell is not one of the first set of candidate cells.

Example 11

Embodiment 11 illustrates a schematic diagram of rrcrecon configuration including a first indicator and a first configuration according to one embodiment of the present application, as shown in fig. 11.

In embodiment 11, the rrcrecon configuration comprises a first indicator and a first configuration, the first indicator being used to indicate whether the first node is allowed to attempt to apply the first configuration; the first configuration is related to RRC reconfiguration.

As an embodiment, the rrcrecon configuration includes a condReconfigurationId field.

As an embodiment, the rrcrecon configuration includes a condreconfigurationtopapplied domain.

As an embodiment, the rrcrecon configuration includes an attemptcondecon field.

As an embodiment, the first indicator comprises a field in the rrcrecon configuration.

As an embodiment, the first indicator is used to indicate that the first node may perform the first configuration if the selected first cell is one cell of the first set of candidate cells after the radio connection fails.

As an embodiment, the first indicator is configured to indicate that the first node is allowed to attempt to perform the first configuration.

As a sub-embodiment of this embodiment, the configuration refers to presence.

As an embodiment, the first indicator is not configured to indicate that the first node is not allowed to attempt to perform the first configuration.

As a sub-embodiment of this embodiment, the non-configured means not present.

As an embodiment, the first configuration is associated to the first target cell, and the first target cell satisfying the first condition is used to trigger the application of the first configuration.

As an embodiment, the first configuration comprises an RRC configuration of the first target cell.

As one embodiment, setting a first sub-message in the VarRLF-Report as the identity of the first target cell; setting the type of the first target cell in the VarRRLF-Report as a first type when the first target cell belongs to the first candidate cell set and the first indicator is configured, and sending RRCRECONfigure complete; setting the type of the first target cell in the VarRRLF-Report to a second type and sending an RRCReestablishmentrequest when the first target cell belongs to the first candidate cell set and the first indicator is not configured.

Example 12

Example 12 illustrates a schematic diagram of a VarRLF-Report including a first condition according to one embodiment of the application, as shown in fig. 12.

In embodiment 12, when the first target cell belongs to the first candidate cell set, setting a third sub-message in the VarRLF-Report as a first condition, the first condition being used to determine a condition under which the first configuration is applied, the rrcrecon configuration indicating the first condition.

As an embodiment, the rrcrecon configuration indicates that the first condition includes the following meanings: the rrcrecon configuration includes the first condition.

As an embodiment, the rrcrecon configuration indicates that the first condition includes the following meanings: the first condition is one or more domains in the rrcrecon configuration.

As an embodiment, the rrcrecondonconfiguration includes a condexecu-nd field.

As an embodiment, the rrcrecon configuration includes a triggerCondition field.

As an embodiment, the sentence setting the third sub-message in the VarRLF-Report as the first condition includes the following meanings: the third sub-message is related to the first condition.

As an embodiment, the sentence setting the third sub-message in the VarRLF-Report as the first condition includes the following meanings: the third sub-message includes the first condition.

As an embodiment, the first condition is used to determine an execution condition when the first configuration is applied.

As an embodiment, the first condition comprises one or more trigger conditions.

As an embodiment, the first condition comprises one or two trigger conditions.

As one embodiment, the first condition includes an A3 event.

As one embodiment, the first condition includes an A5 event.

As an embodiment, the first condition includes an execution threshold.

As an embodiment, the first condition includes a condition configuration identification.

As an embodiment, the first condition includes all of the execution conditions.

As an embodiment, the first condition comprises a portion of an execution condition.

Example 13

Embodiment 13 illustrates a schematic diagram of a second set of sub-messages according to an embodiment of the present application including K types, as shown in fig. 13.

In embodiment 13, the value set of the second sub-message includes K types, one of which is used to indicate the type of the first target cell in the VarRLF-Report in the present application; the first type and the second type are each one of the K types.

As an embodiment, the K is a positive integer greater than 2.

As an embodiment, the phrase the value set of the second sub-message includes K types including the following meanings: the value of the second sub-message includes one of the K types.

As an embodiment, the phrase the value set of the second sub-message includes K types including the following meanings: the second sub-message is as an embodiment that the K types are used to determine different roles of the first target cell.

As an embodiment, the K types are used to determine different procedures to be performed after the first target cell is selected.

As an embodiment, one of the K types is used to perform a re-establishment procedure of the radio resource control after the first target cell is determined to be selected.

As an embodiment, one of the K types is used to perform the reconfiguration procedure of the radio resource control after the first target cell is determined to be selected.

As an embodiment, one of the K types is used to perform the recovery procedure of the radio connection failure after the first target cell is determined to be selected.

As one embodiment, one of the K types is used to determine that a Conditional Handover (CHO) procedure is performed after the first target cell is selected.

As one embodiment, one of the K types is used to perform an MCG fast recovery procedure after determining that the first target cell is selected.

As an embodiment, one of the K types is used to determine that the first node enters an IDLE state.

As an embodiment, the determined meaning comprises an indication.

As an embodiment, the other sub-message in the radio link failure related message indicates the type of the first target cell in the radio link failure related message from among the K types, the K being an integer greater than 2, the first type and the second type being two types different from each other among the K types.

Example 14

Embodiment 14 illustrates a block diagram of a processing apparatus for use in a first node according to one embodiment of the present application; as shown in fig. 14. In fig. 14, the processing means 1400 in the first node comprises a first receiver 1401, a first transmitter 1402 and a first transceiver 1403.

A first receiver 1401 receiving rrcrecon configuration; determining a wireless connection failure; generating a VarRLF-report and selecting a first target cell in response to the determination of radio connection failure; obtaining effective system information of the first target cell;

a first transceiver 1403 performing random access with the first target cell according to the valid system information of the first target cell;

A first transmitter 1402 that sets a first sub-message in the VarRLF-Report as an identity of the first target cell; when the first target cell belongs to a first candidate cell set, setting the type of the first target cell in the VarLF-Report as a first type, and sending RRCReconfigurationcomplete; setting the type of the first target cell in the VarRRLF-report as a second type when the first target cell is not one candidate cell in the first candidate cell set, and sending an RRCReestablishentrequest;

in embodiment 14, the rrcrecon configuration indicates the first set of candidate cells; the RRCRECONfigure complete includes rlf-InfoAvailable.

As one embodiment, the name of the first sub-message in the VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report.

As one embodiment, the VarRLF-Report includes a second sub-message that is used to indicate the type of the first target cell in the VarRLF-Report.

As an embodiment, the first receiver 1401 receives a ueinfomation request; the first transmitter 1402 transmits ueinfo response; wherein the ueinfo request is used to request the radio link failure related message; the ueinformation response includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

As one embodiment, when the first target cell is not one candidate cell in the first set of candidate cells, comprising: the first receiver 1401 receives RRCReestablishment; the first transmitter 1402 sends rrcreestablishcomplete; wherein the RRCReestinglent is used to trigger the RRCReestinglentComplete, which includes the rlf-InfoAvailable.

As an embodiment, the rrcrecon configuration comprises a first indicator and a first configuration, the first indicator being used to indicate whether the first node is allowed to apply the first configuration; the first configuration is related to RRC reconfiguration.

As an embodiment, when the first target cell belongs to the first candidate cell set, setting a third sub-message in the VarRLF-Report as a first condition, the first condition being used to determine a condition under which the first configuration is applied, the rrcrecon configuration indicating the first condition.

As an example, the first receiver 1401 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.

As an example, the first receiver 1401 includes an antenna 452, a receiver 454, a multi-antenna receiving processor 458, and a receiving processor 456 shown in fig. 4 of the present application.

As an example, the first receiver 1401 includes an antenna 452, a receiver 454, and a receiving processor 456 as shown in fig. 4 of the present application.

As an example, the first transmitter 1402 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.

As an example, the first transmitter 1402 includes an antenna 452, a transmitter 454, a multi-antenna transmit processor 457, and a transmit processor 468 of fig. 4 of the present application.

As an example, the first transmitter 1402 includes the antenna 452, the transmitter 454, and the transmission processor 468 of fig. 4 of the present application.

As an example, the first transceiver 1403 includes an antenna 452, a receiver 454, a multi-antenna receive processor 458, a receive processor 456, a controller/processor 459, a memory 460 and a data source 467, a transmitter 454, a multi-antenna transmit processor 457, and a transmit processor 468 of fig. 4 of the present application.

As an example, the first transceiver 1403 includes an antenna 452, a receiver 454, a multi-antenna receive processor 458, a receive processor 456, a transmitter 454, a multi-antenna transmit processor 457, and a transmit processor 468 in fig. 4 of the present application.

As an example, the first transceiver 1403 includes an antenna 452, a receiver 454, a receiving processor 456, a transmitter 454, and a transmitting processor 468 in fig. 4 of the present application.

Example 15

Embodiment 15 illustrates a block diagram of a processing apparatus for use in a second node according to one embodiment of the present application; as shown in fig. 15. In fig. 15, the processing means 1500 in the second node comprises a second transmitter 1501, a second receiver 1502 and a second transceiver 1503.

A second transceiver 1503 for completing random access with the first target cell according to the effective system information of the first target cell;

a second receiver 1502 that sets a first sub-message in a VarRLF-Report as an identity of the first target cell; setting the type of the first target cell in the VarRLF-Report as a first type when the first target cell belongs to a first candidate cell set, and receiving RRCRECONfigure complete; setting the type of the first target cell in the VarRLF-Report to be a second type when the first target cell is not one candidate cell in the first candidate cell set, and receiving an RRCReestablishmentRequest;

In embodiment 15, the first set of candidate cells is indicated by rrcrecon configuration; in response to determining a radio connection failure, the VarRLF-Report is generated and a first target cell is selected; the valid system information of the first target cell is obtained; the VarRLF-Report is associated with a radio link failure related message; the RRCRECONfigure complete includes rlf-InfoAvailable.

As an embodiment, the second transmitter 1501 transmits a ueinfomation request; the second receiver 1502 receives ueinfo response; wherein the ueinfo request is used to request the radio link failure related message; the ueinformation response includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

As one embodiment, when the first target cell is not one candidate cell in the first set of candidate cells, comprising: the second transmitter 1501 sends RRCReestablishment; the second receiver 1502 receives RRCReestablentcomplete; wherein the RRCReestinglent is used to trigger the RRCReestinglentComplete, which includes the rlf-InfoAvailable.

As an embodiment, the rrcrecon configuration comprises a first indicator and a first configuration, the first indicator being used to indicate whether a recipient of the rrcrecon configuration is allowed to apply the first configuration; the first configuration is related to RRC reconfiguration.

As an example, the second transmitter 1501 includes 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.

As an example, the second transmitter 1501 includes the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, and the transmitting processor 416 in fig. 4 of the present application.

As an example, the second transmitter 1501 includes an antenna 420, a transmitter 418, and a transmitting processor 416 shown in fig. 4 of the present application.

As an example, the second receiver 1502 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 of the present application.

As an example, the second receiver 1502 includes the antenna 420, the receiver 418, the multi-antenna receiving processor 472, and the receiving processor 470 of fig. 4 of the present application.

As an example, the second receiver 1502 includes the antenna 420, the receiver 418, and the receiving processor 470 shown in fig. 4 of the present application.

As an example, the second transceiver 1503 includes the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476, the receiver 418, the multi-antenna receive processor 472, and the receive processor 470 of fig. 4 of the present application.

As an example, the second transceiver 1503 includes the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, the receiver 418, the multi-antenna receiving processor 472, and the receiving processor 470 shown in fig. 4 of the present application.

As an example, the second transceiver 1503 includes an antenna 420, a transmitter 418, a transmitting processor 416, a receiver 418, and a receiving processor 470 shown in fig. 4 of the present application.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on 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 using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the application is not limited to any specific combination of software and hardware. User equipment, terminals and UEs in the present application include, but are not limited to, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control airplanes, aircraft, mini-planes, mobile phones, tablet computers, notebooks, vehicle-mounted communication devices, wireless sensors, network cards, internet of things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication ) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low cost mobile phones, low cost tablet computers, and other wireless communication devices. 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, transmitting and receiving node), and other wireless communication devices.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims

1. A first node for wireless communication, comprising:

2. The first node of claim 1, wherein a name of the first sub-message in the VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report.

3. The first node of claim 1 or 2, wherein the VarRLF-Report comprises a second sub-message, the second sub-message being used to indicate the type of the first target cell in the VarRLF-Report.

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

the first receiver receives a UEInformationRequest;

the first transmitter transmits a UEInformationResponse;

wherein the ueinfomation request is used to request a radio link failure related message; the ueinformation response includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

5. The first node according to any of claims 1 to 4, characterized by, when the first target cell is not one candidate cell of the first set of candidate cells, comprising:

The first receiver receives RRCReestinishivent;

the first transmitter transmits RRCReessablischentcomplete;

wherein the RRCReestinglent is used to trigger the RRCReestinglentComplete, which includes the rlf-InfoAvai table.

6. The first node according to any of claims 1 to 5, wherein the rrcrecon configuration comprises a first indicator and a first configuration, the first indicator being used to indicate whether the first node is allowed to apply the first configuration; the first configuration is related to RRC reconfiguration.

7. The first node of claim 6, wherein a third sub-message in the VarRLF-Report is set to a first condition when the first target cell belongs to the first set of candidate cells, the first condition being used to determine a condition under which the first configuration is applied, the rrcrecon configuration indicating the first condition.

8. A second node for wireless communication, comprising:

9. The second node of claim 8, wherein a name of the first sub-message in the VarRLF-Report is used to determine the type of the first target cell in the VarRLF-Report.

10. The second node according to claim 8 or 9, characterized in that the VarRLF-Report comprises a second sub-message, which is used to indicate the type of the first target cell in the VarRLF-Report.

11. The second node according to any of claims 8 to 10, characterized by a second transmitter transmitting ueinfomation request; the second receiver receives UEInformat ionResponse; wherein the ueinfo request is used to request the radio link failure related message; the ueinformation response includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

12. The second node according to any of claims 8 to 11, characterized by, when the first target cell is not one of the first set of candidate cells, comprising: the second transmitter transmits RRCReelastiblastment; the second receiver receives RRCReestinghmentcomplete; wherein the RRCReestinglent is used to trigger the RRCReestinglentComplete, which includes the rlf-InfoAvailable.

13. The second node according to any of claims 8 to 12, wherein the rrcrecon configuration comprises a first indicator and a first configuration, the first indicator being used to indicate whether a recipient of the rrcrecon configuration is allowed to apply the first configuration; the first configuration is related to RRC reconfiguration.

14. The second node according to any of claims 8 to 13, wherein when the first target cell belongs to the first set of candidate cells, a third sub-message in the VarRLF-Report is set to a first condition, the first condition being used to determine a condition under which the first configuration is applied, the RRCReconfigurat ion indicating the first condition.

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

16. The method in a first node according to claim 15,

17. The method in a first node according to claim 15 or 16, wherein the VarRLF-Report comprises a second sub-message, the second sub-message being used to indicate the type of the first target cell in the VarRLF-Report.

18. The method in a first node according to any of the claims 15 to 17, comprising:

receiving UEInformat ionRequest;

transmitting UEInformat ionResponse;

wherein the ueinfomation request is used to request a radio link failure related message; the ueinformation response includes an RLF-Report, the RLF-Report being related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report, the RLF-Report including information related to performing radio connection failure recovery after RLF.

19. The method in a first node according to any of the claims 15 to 18,

receiving RRCReeastablischent;

transmitting RRCReestablischentcomplete;

20. The method in a first node according to any of the claims 15 to 19, characterized in,

the RRCReconfigurat ion includes a first indicator and a first configuration, the first indicator being used to indicate whether the first node is allowed to apply the first configuration; the first configuration is related to RRC reconfiguration.

21. The method in a first node according to any of the claims 15 to 20, characterized in,

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

setting a first sub-message in the VarLF-Report as an identification of a first target cell; setting the type of the first target cell in the VarRLF-Report as a first type when the first target cell belongs to a first candidate cell set, and receiving RRCRECONfigure complete; setting the type of the first target cell in the VarRLF-Report to be a second type when the first target cell is not one candidate cell in the first candidate cell set, and receiving an RRCReestablishmentRequest;

wherein the first set of candidate cells is indicated by rrcrecon configuration; in response to determining the radio connection failure, a VarRLF-Report is generated and a first target cell is selected; effective system information of the first target cell is obtained; the VarRLF-Report is associated with a radio link failure related message; the RRCRECONfigure complete includes rlf-InfoAvailable.

23. The method in the second node of claim 22,

24. Method in a second node according to claim 22 or 23, characterized in that,

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

transmitting UEInformat ionRequest;

receiving UEInformat ionResponse;

wherein the UEInformat ionRequest is used to request the radio link failure related message; the ueinformation response includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

26. The method in the second node according to any of the claims 22 to 25, comprising, when the first target cell is not one of the first set of candidate cells:

transmitting RRCReeastablischent;

receiving RRCReestablischentcomplete;

27. The method in a second node according to any of the claims 22 to 26,

the RRCReconfigurat ion includes a first indicator and a first configuration, the first indicator being used to indicate whether the recipient of the RRCReconfigurat ion is permitted to apply the first configuration; the first configuration is related to RRC reconfiguration.

28. The method in the second node of claim 27,