CN112437496A

CN112437496A - Method and arrangement in a communication node used for wireless communication

Info

Publication number: CN112437496A
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: 2021-03-02
Anticipated expiration: 2040-04-08
Also published as: CN112437496B

Abstract

A method and arrangement in a communication node for wireless communication is disclosed. The communication node receives RRCRECONFITTION; determining that a radio connection has failed; generating a VarRLF-report and selecting a first target cell in response to said determining that the radio connection failed; obtaining valid system information of the first target cell; completing random access with the first target cell according to the effective system information of the first target cell; setting a first sub-message in the VarRLF-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 VarRLF-Report as a first type, and sending RRCREConfigurationcomplete; when the first target cell is not one candidate cell in the first candidate cell set, setting the type of the first target cell in the VarRLF-report to be a second type, and sending a rrcreetablestablishmentrequest; the RRCRECONFIfiguration indicates the first set of candidate cells; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable. The method and the device are beneficial to network optimization.

Description

Method and arrangement in a communication node used for wireless communication

Technical Field

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

Background

Radio Link Failure (RLF) reports are used for coverage optimization and mobility robustness optimization, and a UE (user equipment) stores the latest RLF or handover Failure (HOF) related information and indicates RLF report availability when each subsequent RRC (Radio resource Control) connection is reestablished and a cell is handed over until the RLF report is acquired by a network or discarded after 48 hours after RLF. Self-organizing Networks (SON) include network Self-configuration and Self-optimization, 3GPP (the 3rd Generation Partnership Project) passes through a data collection enhancement Work Item (WI) of NR (new radio, new air interface) SON/MDT (Minimization of Drive Tests) in RAN #86, supports SON data collection characteristics including mobility enhancement optimization, successful handover report, and UE history information in EN-DC (E-UTRA NR Dual Connectivity); the MDT data collection characteristics are supported, and the characteristics comprise 2-stepRACH (random Access channel) optimization, RLF (radio Link Format) reporting and the like. Release 16 studies standardization work of Conditional Handover (CHO) in a work project of "NR and LTE (Long Term Evolution ) mobility enhancement", and supports radio link Recovery (Recovery) through CHO after RLF occurs to UE. Release 16 studies MCG (mastercell group ) fast recovery (fastmcg) in the work project of "dual Connectivity and Carrier Aggregation enhancement (edca)", and performs MCG wireless link recovery through SCG (secondarycell group ) after supporting MCGRLF.

Disclosure of Invention

Before Release 16, when the UE has RLF, it keeps in RRC CONNECTED state (RRC _ CONNECTED), selects a cell and performs RRC connection Reestablishment (Reestablishment), and if no suitable cell is selected, enters into RRC IDLE state (RRC _ IDLE). Release 16 introduces CHO and supports the recovery of radio link through CHO, when the cell selected by UE is a CHO candidate cell, executing CHO process, otherwise, executing 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 the CHO procedure, the radio connection failure is recovered by performing the RRC connection reconfiguration without performing the 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 just after the radio connection failure occurs, so that when the base station receives the RLF report, it is not beneficial to the network coverage optimization and the mobility enhancement. Therefore, there is a need for an enhanced radio link failure report.

In view of the above, the present application provides a solution. In the description of the above problem, a scenario of recovery by CHO after RLF is taken as an example; the method is also applicable to scenes of fast recovery through MCG after MCG failure, and achieves the technical effect similar to that of recovery through CHO after RLF. In addition, the adoption of a unified solution for different scenarios also helps to reduce hardware complexity and cost.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in any node of the present application may be applied to any other node. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

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

receiving RRCRECONFITTION; determining that a radio connection has failed; generating a VarRLF-report and selecting a first target cell in response to said determining that the radio connection failed; obtaining valid system information of the first target cell;

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

setting a first sub-message in the VarRLF-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 VarRLF-Report as a first type, and sending RRCREConfigurationcomplete; when the first target cell is not one candidate cell in the first candidate cell set, setting the type of the first target cell in the VarRLF-report to be a second type, and sending a rrcreetablestablishmentrequest;

wherein the RRCRECONFITTION indicates the first set of candidate cells; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable.

As an embodiment, the problem to be solved by the present application includes: according to the current specifications, when a radio connection failure occurs in the UE and a CHO cell is selected, the RLF report sent by the UE to the base station does not reflect the behavior of the UE, i.e. the base station does not know whether the UE enters IDLE state or CHO is performed.

As an embodiment, the problem to be solved by the present application includes: according to the current specification, when the UE fails in radio connection and selects a CHO cell, the identity of the selected CHO cell is not reported.

As an embodiment, the problem to be solved by the present application includes: according to the current specification, when 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 favorable for network coverage optimization and mobility enhancement.

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

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

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

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

As an example, the benefits of the above method include: which is advantageous for mobility enhancement.

As an example, the benefits of the above method include: more efficient RLF reporting is provided, avoiding uncertainty in the network interpretation of the UE behavior.

According to one aspect of the present 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 an embodiment, the characteristics 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 an example, the benefits of the above method include: the type of the first target cell is indicated visually by the name of the field or IE.

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

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

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

According to one aspect of the application, the method is characterized by comprising the following steps:

receiving a UEInformationRequest;

sending UEInformationResponse;

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

As an embodiment, the characteristics of the above method include: the RLF-Report includes information about post-RLF CHO execution.

As an embodiment, the characteristics 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 cell selected after RLF in the RLF report.

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

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

receiving RRCREESTABLIShment;

sending RRCREESTABLISHMETCOMPLETE;

wherein the RRCREESTABLISHIment is used for triggering the RRCREESTABLISHITECCOMPLETE, and the RRCREESTABLISHITECCOMPLETE comprises the rlf-InfoAvailable.

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

the RRCRECONFITTION comprises a first indicator and a first configuration, the first indicator being used for indicating whether the first node is allowed to apply the first configuration; the first configuration relates to an RRC reconfiguration.

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

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

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

As an example, the benefits of the above method include: more effective information is provided for the network, and mobility enhancement is facilitated.

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

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 the VarRLF-Report as an identifier of the first target cell; setting the type of the first target cell in the VarRLF-Report to a first type and receiving rrcreeconfigurationcomplete when the first target cell belongs to a first candidate cell set; when the first target cell is not one of the first candidate cell set, setting the type of the first target cell in the VarRLF-Report to a second type, and receiving a rrcreetablestablishrequest;

wherein the first candidate cell set is indicated by RRCRECONFITTION; in response to determining that the radio connection failed, 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 related to a radio link failure related message; the RRCRECONFIfigurationcomplete 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 used to indicate the type of the first target cell in the VarRLF-Report.

sending a UEInformationRequest;

receiving UEInformationResponse;

wherein the UEInformationRequest is used to request the radio link failure related message; the UEInformationResponse includes a 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 present application, when the first target cell is not one candidate cell in the first candidate cell set, the method comprises:

sending RRCREESTABLIShment;

receiving RRCREESTABLISHMETCOMPLETE;

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

the RRCRECONFITTION includes a first indicator and a first configuration, the first indicator being used to indicate whether a recipient of the RRCRECONFITTION is allowed to apply the first configuration; the first configuration relates to an RRC reconfiguration.

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

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

a first receiver that receives rrcreeconfiguration; determining that a radio connection has failed; generating a VarRLF-report and selecting a first target cell in response to said determining that the radio connection failed; obtaining valid system information of the first target cell;

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

a first transmitter, configured to set a first sub-message in the VarRLF-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 VarRLF-Report as a first type, and sending RRCREConfigurationcomplete; when the first target cell is not one candidate cell in the first candidate cell set, setting the type of the first target cell in the VarRLF-report to be a second type, and sending a rrcreetablestablishmentrequest;

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

the second transceiver completes the 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 VarRLF-Report as the identifier of the first target cell; setting the type of the first target cell in the VarRLF-Report to a first type and receiving rrcreeconfigurationcomplete when the first target cell belongs to a first candidate cell set; when the first target cell is not one of the first candidate cell set, setting the type of the first target cell in the VarRLF-Report to a second type, and receiving a rrcreetablestablishrequest;

wherein the first candidate cell set is indicated by RRCRECONFITTION; in response to determining that the radio connection failed, 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 related to a radio link failure related message; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable.

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

when the UE performs RLF to select a cell, if the selected cell is a CHO candidate cell and the UE is configured with RLF, the UE may attempt CHO, the UE attempts to perform CHO, and when the CHO is performed, the UE stores the identity of the selected cell and carries the stored identity of the selected cell when performing RLF reporting;

when the UE performs RLF to select a cell, if the selected cell is a CHO candidate cell and the UE is configured with RLF, the UE may attempt CHO, and the UE attempts to perform CHO, and when the CHO is performed, the UE stores the CHO performing condition and carries the stored CHO performing condition when performing RLF reporting;

when the UE generates RLF to select a cell, the type of the selected cell is stored, and the selected cell is carried when the RLF is reported;

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 following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

fig. 1 illustrates a flow diagram of the transmission of rrcreeconfiguration, rrcreeconfiguration complete, and rrcreestablstrimentrequest according to one embodiment of the present application;

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

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

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

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

fig. 6 shows a schematic diagram of transmissions of a UEInformationRequest and UEInformationResponse according to an embodiment of the application;

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

fig. 8 illustrates a diagram in which 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 an embodiment of the present application;

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

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

fig. 11 shows a schematic diagram of rrcreeconfiguration including a first indicator and a first configuration according to one embodiment of the present application;

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

fig. 13 illustrates a diagram that a value set of a second sub-message includes K types according to an embodiment of the present application;

FIG. 14 shows a block diagram of a processing device for use in a first node according to an 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 solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments in the present application can be arbitrarily combined with each other without conflict.

Example 1

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

In embodiment 1, the first node receives rrcreeconfiguration in step 101; determining that a radio connection has failed; generating a VarRLF-report and selecting a first target cell in response to said determining that the radio connection failed; obtaining valid system information of the first target cell; in step 102, according to the valid 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 VarRLF-Report as a first type, and sending RRCREConfigurationcomplete; when the first target cell is not one candidate cell in the first candidate cell set, setting the type of the first target cell in the VarRLF-report to be a second type, and sending a rrcreetablestablishmentrequest; wherein the RRCRECONFITTION indicates the first set of candidate cells; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable.

As an embodiment, the sender of the rrcreeconfiguration includes 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 (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 Master Cell Group (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, a RAT (Radio Access Technology ) adopted by the PLMN is NR (New Radio).

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

As an embodiment, the rrcreconfigurable is used to configure for the Conditional Handover (CHO).

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

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

As an embodiment, the RRCReconfiguration includes all or a part of a Field (Field) in an IE of an RRC message.

As an embodiment, the RRCReconfiguration comprises a configurable reconfiguration IE.

As an embodiment, the rrcreeconfiguration comprises a confconfonfigugtoadmodlist field.

As an embodiment, the rrcreeconfiguration comprises a condconfigugtoremovelist field.

As an embodiment, the rrcreeconfiguration comprises an attemptCondReconfig field.

As an embodiment, the rrcreeconfiguration comprises a configid IE.

As an embodiment, the rrcreeconfiguration comprises a configtoaddmodlist IE.

As an embodiment, the rrcreconfigurable includes a confconfigid field.

As one embodiment, the RRCReconfiguration includes a condExecutionCond field.

As an embodiment, the RRCReconfiguration comprises a condrrcreconfiguring field.

As an embodiment, the sentence rrcreeconfiguration indicates that the first set of candidate cells includes the following meaning: the RRCReconfiguration includes all or part of the first set of candidate cells.

As an embodiment, the sentence rrcreeconfiguration indicates that the first set of candidate cells includes the following meaning: the first set of candidate cells includes one or more fields in the rrcreeconfiguration.

As one embodiment, the first set of candidate cells includes a plurality of candidate serving cells.

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

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

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

For one embodiment, the radio connection failure comprises an RRC connection Reestablishment (Reestablishment) failure.

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

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

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

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

As a sub-embodiment of this embodiment, the handover failure includes a daps (dual Active Protocol stack) handover failure.

As one embodiment, the determining that the radio connection fails comprises: the first node determines that a radio connection with the first serving cell has failed.

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

As a sub-embodiment of this embodiment, the radio measurements are for the first serving cell.

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

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

As a sub-embodiment of this embodiment, the wireless measurements include a Synchronization Signal Reference Signal (SS-RS).

As a sub-embodiment of this embodiment, the wireless measurements include a 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 includes a 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 (CSI-RS).

As a sub-embodiment of this embodiment, the radio measurement includes measuring a Physical Downlink Control Channel (PDCCH) common to the cells.

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

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

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

As an embodiment, when receiving an indication of reaching a maximum number of retransmissions from an MCG RLC (Radio Link Control), the first node determines that a Radio connection failed.

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

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

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

As one embodiment, the first node determines that a radio connection with a first serving cell, the first serving cell belonging to an MCG, has failed.

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 includes information of the RLF.

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

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

As an embodiment, the sentence, in response to the determining that the radio connection fails, generating the VarRLF-Report and selecting the first target cell comprises the following: and when the radio connection failure occurs to the first node, generating a VarRLF-Report and selecting a first target cell.

As an example, the phrase, in response to the determination of the failure of the wireless connection, includes the following meanings: as a next action for the determination of the radio connection failure.

As an example, the phrase, in response to the determination of the failure of the wireless connection, includes the following meanings: as a next action of the first node declaring (delete) the radio connection failure.

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

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

As one embodiment, the phrase generation VarRLF-Report includes the following meanings: setting one or more fields in the VarRLF-Report to content related to the radio link failure.

As one embodiment, the phrase generation VarRLF-Report includes the following meanings: if the VarRLF-Report stores the content, the content of the VarRLF-Report is cleared first, and then the radio link failure related message is stored.

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

For one embodiment, the VarRLF-Report includes rlf-Report fields.

As one embodiment, the VarRLF-Report includes a plmn-IdentityList field.

As one embodiment, the VarRLF-Report includes a plmn-Identity field.

As one embodiment, the value of the VarRLF-Report comprises a 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) process 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 according to measurement results.

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

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

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

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

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

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

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

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

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

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

For one embodiment, the valid system information includes a PLMN.

As an embodiment, the sentence setting the identification of the first sub-message in the VarRLF-Report as the first target cell includes the following meanings: the VarRLF-Report includes the first sub-message, which 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 determining is meant to include.

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

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

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

As one embodiment, the identification of the first target cell includes a Cell Global Identity (CGI) of the first target cell.

As one embodiment, the identity of the first target Cell includes an Evolved Cell Global Identity (ECGI) of the first target Cell.

As one embodiment, the identification of the first target cell includes a Physical Cell Identification (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 candidate cell set.

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 setting the type of the first target cell in the VarRLF-Report to a first type includes 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 setting the type of the first target cell in the VarRLF-Report to a first type includes 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 candidate set of 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 determine that the first target cell is selected and then perform a recovery procedure for the radio connection failure.

As one 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 first target cell is selected before performing a conditional configuration procedure.

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

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

As an embodiment, the receiver of the rrcreconfigurable complete includes a maintenance base station of the first target cell.

As an embodiment, the recipient of the rrcreconfigurable complete includes a PCell in which a radio link failure occurs.

As an embodiment, the rrcreconfigurable complete includes an RRC message.

As an embodiment, the rrcconfigurationcomplete includes all or a part of IE of one RRC message.

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

As an example, the phrase rrcreeconfigurationcomplete includes rlf-InfoAvailable includes the following meanings: the rlf-InfoAvailable is a field or IE in the RRCRECONFIfigurationComplete.

As an example, the phrase rrcreeconfigurationcomplete includes rlf-InfoAvailable includes the following meanings: when the content in the RRCReconfigurationComplete is set, if the first node stores the radio link failure related message in the VarRLF-Report, the rlf-InfoAvailable is included in the RRCReconfigurationComplete.

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

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

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

As an embodiment, the sentence setting the type of the first target cell in the VarRLF-Report to the second type includes 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 candidate cell set.

As an embodiment, the second type is used to determine that the radio resource control re-establishment procedure 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 candidate set of cells.

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

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

As an embodiment, the rrcreestablemarginrequest includes all or a part of a Field (Field) in an IE of an RRC message.

As one example, the RLF-InfoAvailable is used to determine whether RLF information is present in the VarRLF-Report.

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

As one embodiment, the type of the first target cell includes a role of the first target cell.

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

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

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

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 an embodiment of the present application, as shown in fig. 2. Fig. 2 illustrates a diagram of a network architecture 200 of a 5G NR (new radio, new air interface), LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-Advanced) system. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, 5 GCs (5G Core networks )/EPCs (Evolved Packet cores) 210, HSS (Home Subscriber Server)/UDMs (Unified Data Management) 220, and internet services 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 5GS/EPS provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (user plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

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

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

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

As an embodiment, the UE201 supports Dual Connectivity (DC) transmission.

As an embodiment, the UE201 is a User Equipment (UE).

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

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

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

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

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

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

As one embodiment, the gNB203 supports Dual Connectivity (DC) transmission.

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

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

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

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

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 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 PHY 301. Above the PHY301, a layer 2(L2 layer) 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link 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 packets and provides handover support. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e., Radio bearers) and configuring the lower layers using RRC signaling. The radio protocol architecture of the user plane 350, which includes layer 1(L1 layer) and layer 2(L2 layer), is substantially the same in the user plane 350 as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services.

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

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

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

As an embodiment, the rrcreconfigurable operation in the present application is generated in the RRC 306.

As an embodiment, the rrcreconfigurable complete in the present application is generated in the RRC 306.

As an embodiment, the RRCReestablishmentRequest in the present application is generated in the RRC 306.

As an embodiment, the rrcreestablistering in the present application is generated in the RRC 306.

As an embodiment, the rrcreestablistering complete in the present application is generated in the RRC 306.

As an embodiment, the UEInformationRequest in the present application is generated in the RRC 306.

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

Example 4

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first communication device 450 at least: receiving RRCRECONFITTION; determining that a radio connection has failed; generating a VarRLF-report and selecting a first target cell in response to said determining that the radio connection failed; obtaining valid system information of the first target cell; completing random access with the first target cell according to the effective system information of the first target cell; setting a first sub-message in the VarRLF-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 VarRLF-Report as a first type, and sending RRCREConfigurationcomplete; when the first target cell is not one candidate cell in the first candidate cell set, setting the type of the first target cell in the VarRLF-report to be a second type, and sending a rrcreetablestablishmentrequest; wherein the RRCRECONFITTION indicates the first set of candidate cells; the RRCRECONFIfigurationcomplete 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 result in actions comprising: receiving RRCRECONFITTION; determining that a radio connection has failed; generating a VarRLF-report and selecting a first target cell in response to said determining that the radio connection failed; obtaining valid system information of the first target cell; completing random access with the first target cell according to the effective system information of the first target cell; setting a first sub-message in the VarRLF-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 VarRLF-Report as a first type, and sending RRCREConfigurationcomplete; when the first target cell is not one candidate cell in the first candidate cell set, setting the type of the first target cell in the VarRLF-report to be a second type, and sending a rrcreetablestablishmentrequest; wherein the RRCRECONFITTION indicates the first set of candidate cells; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable.

As an embodiment, the second communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 at least: setting a first sub-message in the VarRLF-Report as an identifier of a first target cell; setting the type of the first target cell in the VarRLF-Report to a first type and receiving rrcreeconfigurationcomplete when the first target cell belongs to a first candidate cell set; when the first target cell is not one of the first candidate cell set, setting the type of the first target cell in the VarRLF-Report to a second type, and receiving a rrcreetablestablishrequest; completing random access with the first target cell according to the effective system information of the first target cell; wherein the first candidate cell set is indicated by RRCRECONFITTION; in response to determining that the radio connection failed, a VarRLF-Report is generated and a first target cell is selected; obtaining valid system information for the first target cell; the VarRLF-Report is related to a radio link failure related message; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable.

As an embodiment, the second communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: setting a first sub-message in the VarRLF-Report as an identifier of a first target cell; setting the type of the first target cell in the VarRLF-Report to a first type and receiving rrcreeconfigurationcomplete when the first target cell belongs to a first candidate cell set; when the first target cell is not one of the first candidate cell set, setting the type of the first target cell in the VarRLF-Report to a second type, and receiving a rrcreetablestablishrequest; completing random access with the first target cell according to the effective system information of the first target cell; wherein the first candidate cell set is indicated by RRCRECONFITTION; in response to determining that the radio connection failed, a VarRLF-Report is generated and a first target cell is selected; obtaining valid system information for the first target cell; the VarRLF-Report is related to a radio link failure related message; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable.

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

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

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

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

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

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

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

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

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

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

For one embodiment, the first communication device 450 is a user equipment supporting dual connectivity.

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

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

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

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

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

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

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 chart according to an embodiment of the present application, as shown in fig. 5. The first node U01 is a user terminal; the second node N02 is the maintaining base station of the first target cell; the third node N03 is the maintaining base station of the source cell of the first node U01; it is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

For theFirst node U01In step S5101, rrcreeconfiguration is received, rrcreeconfiguration complete is sent in step S5102, rrcreestablstringrequest is sent in step S5103, rrcreestablstringrequest is received in step S5104, rrcreestablstringcomplete is sent in step S5105, UEInformationRequest is received in step S5106, and UEInformationResponse is sent in step S5107.

For theSecond node N02In step S5201, rrcreeconfigurationcomplete complete is received, in step S5202, rrcreestablstringrequest is received, in step S5203, rrcreestablstringrequest is transmitted, in step S5204, rrcreetastablestabletcomplete is received, in step S5205, UEInformationRequest is transmitted, and in step S5206, UEInformationResponse is received.

For theThird node N03In step S5301, rrcreeconfiguration is transmitted.

In embodiment 5, a radio connection failure is determined; generating a VarRLF-report and selecting a first target cell in response to said determining that the radio connection failed; obtaining valid system information of the first target cell; completing random access with the first target cell according to the effective system information of the first target cell; setting a first sub-message in the VarRLF-Report as an identifier of the first target cell; setting the type of the first target cell in the VarRLF-Report to 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 a second type when the first target cell is not one of the first set of candidate cells; the RRCRECONFIfiguration indicates the first set of candidate cells; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable; when the first target cell is not a candidate cell in the first candidate cell set, the rrcreestablstringcomplete is used to trigger the rrcreestablstringcomplete, which includes the rlf-InfoAvailable; the UEInformationRequest is used to request the radio link failure related message; the UEInformationResponse includes a 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 rrcreeconfiguration includes the second node N02.

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

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

For one embodiment, the second node N02 comprises a maintenance base station of a PCell.

For one embodiment, the third node N03 includes a maintenance base station of the PSCell.

For one embodiment, the third node N03 includes a maintaining base station of the first serving cell.

For one embodiment, the first node U01 and the second node N02 have the wireless connection failure.

For one embodiment, the first node U01 and the third node N03 have the wireless connection failure.

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.

For one embodiment, the first node U01 generates the radio link failure related message.

As one embodiment, the sentence name of the first sub-message in the VarRLF-Report is used to determine that the type of the first target cell in the VarRLF-Report includes 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 sentence name of the first sub-message in the VarRLF-Report is used to determine that the type of the first target cell in the VarRLF-Report includes 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 sentence name of the first sub-message in the VarRLF-Report is used to determine that the type of the first target cell in the VarRLF-Report includes the following meanings: the type of the first target cell in the VarRLF-Report is distinguished by a 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 for performing the 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 identity of the first target cell, setting a type of the first target cell in the VarRLF-Report as a first type, and 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.

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 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 related to 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 related to a conditional configuration.

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

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

As a sub-embodiment of this embodiment, the first name comprises a resessabelishmenticellid.

As a sub-embodiment of this embodiment, the first name comprises a conditional handlevercellid.

As a sub-embodiment of this embodiment, the first name comprises a conditionhandlevercellid.

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

As a sub-embodiment of this embodiment, the first name comprises a retrievcelld.

As a sub-embodiment of this embodiment, the first name comprises previousps cellid.

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

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

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

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

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

As a sub-embodiment of this embodiment, the second name indicates that the first target cell is related to 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 comprises a resessabelishmenticellid.

As a sub-embodiment of this embodiment, the second name comprises a conditional handlevercellid.

As a sub-embodiment of this embodiment, the second name comprises a conditionhandlevercellid.

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

As a sub-embodiment of this embodiment, the second name comprises a retrievcelld.

As a sub-embodiment of this embodiment, the second name comprises previousps cellid.

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

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

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

As an embodiment, the faiedPCellid is used to determine that the type of the first target cell in the VarRLF-Report is a first type; the resessabelitemcellid 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-mentioned embodiment, when the first target cell belongs to the first candidate cell set, the connectionFailureType in the first information block is set to RLF.

As one embodiment, the VarRLF-Report includes the first sub-message and does not include 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.

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 candidate set of cells.

As an embodiment, the second sub-message indicates a 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 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.

For one embodiment, the second sub-message includes a field in the VarRLF-Report.

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

For one 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.

For one embodiment, the name of the second sub-message in the VarRLF-Report comprises a resendabelishmenttype.

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

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

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

As an embodiment, the name of the second sub-message in the VarRLF-Report includes retrievytype.

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

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

For one embodiment, the value of the second sub-message comprises a resendapalishment.

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

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

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

For one embodiment, the value of the second sub-message comprises recovery.

As one embodiment, the value of the second sub-message includes MCGrecovery.

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

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

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

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

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

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

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

As an embodiment, the rrcreestablishing includes all or part of a Field (Field) in an IE of an RRC message.

As an embodiment, the sentence rrcreestablstringe is used to trigger the rrcreestablstringecomplete to include the following meanings: and sending the RRCREESTABLISHMENT complete as a response of receiving the RRCREESTABLISHMENT.

As an embodiment, the sentence rrcreestablstringe is used to trigger the rrcreestablstringecomplete to include the following meanings: the RRCREESTABLISHMETE complete is used for confirmation against the RRCREESTABLISHMETE.

For one embodiment, the rrcreestablistercomplete includes an RRC message.

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

For one embodiment, the rrcreestablistering complete includes all or part of a field in an IE of an RRC message.

As an embodiment, the sentence rrcreestablishcomplete includes that the rlf-InfoAvailable includes the following meanings: the rlf-InfoAvailable is a field in the RRCREESTABLISHMENT complete.

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

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

As an example, the sender of the UEInformationRequest is the same as the third node N03 in the present application.

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

As an embodiment, the sender of the UEInformationRequest 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 one embodiment, the UEInformationRequest includes an RRC message.

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

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

As one embodiment, the UEInformationRequest includes an RLF-ReportReq IE.

As an embodiment, the UEInformationRequest is used to trigger the sending of the UEInformationResponse.

As an embodiment, the sentence, the UEInformationRequest, is used to request the radio link failure related message to include the following meanings: a field in the UEInformationRequest is used to determine that the radio link failure related message is requested.

As an embodiment, the UEInformationRequest is used to determine that the radio link failure recovery related message is requested.

As an embodiment, the UEInformationRequest is used to determine that a successful handover-related message is requested.

For one embodiment, the UEInformationRequest includes an rlf-ReportReq field.

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

As one embodiment, the UEInformationResponse includes an RRC message.

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

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

As one embodiment, the UEInformationResponse includes an RLF-Report field.

As one embodiment, the UEInformationResponse includes an nr-RLF-Report field.

As one embodiment, the UEInformationResponse includes an eutra-RLF-Report field.

The UEInformationResponse includes, as one embodiment, an rlf-Report field.

As an embodiment, the UEInformationResponse including RLF-Report includes the following meanings: the UEInformationResponse includes all or part of the RLF-Report.

As an embodiment, the UEInformationResponse including RLF-Report includes the following meanings: the RLF-Report is one or more fields in the UEInformationResponse.

For one embodiment, the RLF-Report includes RLF-Report fields.

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

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

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

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

As an example, the value of the RLF-Report comprising the VarRLF-Report of the sentence includes the following meanings: the RLF-Report in the UEInformationResponse is set according to the value in the VarRLF-Report.

As an example, the value of the RLF-Report comprising the VarRLF-Report of the sentence includes the following meanings: the value in the RLF-Report in the UEInformationResponse is set to the value in the VarRLF-Report.

For one embodiment, the value for 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 example, the value of the RLF-Report comprising the VarRLF-Report of the sentence includes the following meanings: setting the RLF-Report to the value of the VarRLF-Report.

As one embodiment, dashed box F1 is optional.

As one embodiment, dashed box F2 is optional.

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

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

Example 6

Embodiment 6 illustrates a schematic diagram of completing random access with a first target cell according to an 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 the maintaining base station of the first target cell; it is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

For theFirst node U01In step S6101, Msg1 is sent, in step S6102, Msg2 is received, in step S6103, Msg3 is received, in step S6104, Msg4 is sent, in step S6105, MsgA is sent, and in step S6106, MsgB is received.

For theSecond node N02In step S6201, Msg1 is received, Msg2 is sent in step S6202, Msg3 is received in step S6203, Msg4 is sent in step S6204, MsgA is received in step S6205, and MsgB is sent in step S5206.

As one embodiment, the random access includes a four-step random access (4-step RACH).

As one embodiment, the random access includes a two-step random access (2-step RACH).

As one embodiment, the Random Access includes Contention Based Random Access (CBRA).

As one embodiment, the Random Access includes a non-Contention based 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 includes a first preamble sequence selected by the first node U01.

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

As a sub-embodiment of this embodiment, the Msg2 includes a Random Access Response (RAR).

As a sub-embodiment of this embodiment, the Msg2 includes an upstream resource used for Msg 3.

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

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

As a sub-embodiment of this embodiment, the Msg4 is used for contention resolution, and the Msg4 includes 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 includes a second preamble sequence that is assigned by a maintaining base station of the 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 comprises the Msg1 and the Msg 3.

As a sub-embodiment of this embodiment, the MsgB comprises the Msg2 and the Msg 4.

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

As an example, dashed box F3 and dashed box F4 are present and dashed box F5 is not present.

As one example, 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 the VarRLF-Report is set according to an embodiment of the present application, as shown in fig. 7. In fig. 7, each block represents a step, and it is particularly emphasized that the order of the blocks in the figure does not represent a chronological relationship between the represented steps.

In embodiment 7, the first node receives rrcreeconfiguration in step S701; determining that the radio connection fails in step S702; generating a VarRLF-Report and selecting a first target cell in step S703; determining in step S704 whether the first target cell belongs to a first candidate set of cells; 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, and setting a type in the first target cell in the VarRLF-Report as a first type in step S705 (a); transmitting rrcreeconfigurationcomplete 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, and setting a type in the first target cell in the VarRLF-Report as a second type in step S705 (b); in step S706(b), RRCReestablishmentRequest is transmitted.

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

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

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

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

As an example, 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, the first sub-message in the VarRLF-Report is set as the identifier of the first target cell, and the type in the first target cell in the VarRLF-Report is set as the first type.

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

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

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

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

As a sub-embodiment of this embodiment, the sentence when the first node determines that the first target cell belongs to the first set of candidate cells comprises the following meaning: before the RRCRECONFIfigurationComplete is transmitted.

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

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

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

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

Example 8

Embodiment 8 illustrates a schematic diagram in which 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 an embodiment of the present application, as shown in fig. 8. In fig. 8, a dashed box represents a first sub-message comprising a first sub-domain and a second sub-domain; the solid boxes represent the RLF-Report field descriptions; 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 comprises a first sub-domain and a second sub-domain; the UEInformationResponse includes a 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 UEInformationResponse.

As an example, the ASN1START represents the beginning of an ASN.1 message.

As an example, the-TAG-UEInformationResponse-START indicates the START of the UEInformationResponse message.

As an embodiment, the-TAG-UEInformationResponse-STOP indicates the end of the UEInformationResponse message.

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

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

For one embodiment, the first sub-domain is one of the VarRLF-Report.

For one embodiment, the first subdomain includes the first name.

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

For one embodiment, the second sub-domain is one of the VarRLF-Report.

For one embodiment, the second subdomain includes the second name.

As an embodiment, the first subzone is set to the identity of the first target cell when the first target cell belongs to the first set of candidate cells.

As an embodiment, the first subzone is not set to the identity of the first target cell when the first target cell does not belong to the first candidate set of 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 subdomain defaults.

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

As an embodiment, when the first target cell is not one of the first set of candidate cells, the name of the second subzone is set to the identity of the first target cell.

As an embodiment, when the first target cell is one of the first set of candidate cells, the name of the second subzone is not set to the identity 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 subdomain is default.

As a sub-embodiment of this embodiment, the second sub-field is a pre-configured 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 simultaneously set.

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

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

Example 9

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

In embodiment 9, setting a first sub-message in the VarRLF-Report as an identifier of the first target cell; the VarRLF-Report includes a second sub-message used to indicate a type of the first target cell in the VarRLF-Report; UEInformationResponse includes an RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

Fig. 9 is a schematic diagram of a message structure of the UEInformationResponse, as an embodiment.

As an example, the ASN1START represents the beginning of an ASN.1 message.

As an example, the ASN1STOP represents the end of the ASN.1 message.

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

As an embodiment, the second sub-message is used to refer to a 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 an 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, setting a first sub-message in the VarRLF-Report as an identity of the first target cell, the second sub-message being used to indicate the type of the first target cell in the VarRLF-Report, and setting the type of the first target cell in the VarRLF-Report as a first type.

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

Example 10

Embodiment 10 illustrates a schematic diagram in which an RLF-Report according to the present application includes a first condition, as shown in fig. 10. In fig. 10, the solid-line boxes represent the RLF-Report field descriptions; ellipses represent other fields or IEs.

In embodiment 10, setting a first sub-message in the VarRLF-Report as an identifier 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 to a first condition when the first target cell belongs to the first set of candidate cells; the UEInformationResponse includes a RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

Fig. 10 is a schematic diagram of a message structure of the UEInformationResponse, as an embodiment.

As an example, the ASN1START represents the beginning of an ASN.1 message.

For one 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, when the first target cell belongs to the first candidate cell set, the first sub-domain and the third sub-message are included in the RLF-Report.

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

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

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

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

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

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

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

As an 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 rrcreeconfiguration including a first indicator and a first configuration according to an embodiment of the present application, as shown in fig. 11.

In embodiment 11, the rrcreeconfiguration 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 relates to an RRC reconfiguration.

As an embodiment, the rrcreconfigurable includes a confconfigid field.

As an embodiment, the rrcreconfigurable includes a configureid field.

As one embodiment, the rrcreconfigurable includes a configureToApply field.

As an embodiment, the RRCReconfiguration comprises an attemptCondReconf field.

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

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 of the first candidate set of cells after the radio connection failure.

As one 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 configured means present.

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

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

As an embodiment, the first configuration is associated to the first target cell, the first target cell satisfying the first condition being used to trigger applying the first configuration.

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

As an embodiment, setting a first sub-message in the VarRLF-Report as an identifier of the first target cell; setting the type of the first target cell in the VarRLF-Report to a first type and transmitting rrcreeconfiguration complete when the first target cell belongs to the first candidate cell set and the first indicator is configured; setting the type of the first target cell in the VarRLF-Report to a second type and transmitting a rrcreetablestablishrequest when the first target cell belongs to the first candidate cell set and the first indicator is not configured.

Example 12

Embodiment 12 illustrates a schematic diagram of a VarRLF-Report including a first condition according to an embodiment of the present 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 used to determine a condition under which the first configuration is applied, the rrcrconfiguration indicating the first condition.

As an embodiment, the rrcreconfigurable indicates that the first condition includes the following meaning: the RRCReconfiguration includes the first condition.

As an embodiment, the rrcreconfigurable indicates that the first condition includes the following meaning: the first condition is one or more fields in the rrcreconfigurable.

As one embodiment, the RRCReconfiguration includes a condExecutionCond field.

As an embodiment, the rrcreconfigurable includes a triggerconfiguration field.

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

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

For one embodiment, the first condition includes one or more trigger conditions.

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

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

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

For one embodiment, the first condition includes an execution threshold.

For one embodiment, the first condition includes a conditional configuration identification.

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

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

Example 13

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

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

As one example, K is a positive integer greater than 2.

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

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

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 determine that the first target cell is selected and then perform the radio resource control re-establishment procedure.

As an embodiment, one of the K types is used to determine that the first target cell is selected and then perform the reconfiguration procedure for radio resource control.

As an embodiment, one of the K types is used to determine that the first target cell is selected and then perform a recovery procedure for the radio connection failure.

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

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

As one embodiment, the determined meaning includes 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 from among the K types.

Example 14

Embodiment 14 illustrates a block diagram of a processing apparatus for use in a first node according to an embodiment of the present application; as shown in fig. 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 that receives rrcreeconfiguration; determining that a radio connection has failed; generating a VarRLF-report and selecting a first target cell in response to said determining that the radio connection failed; obtaining valid system information of the first target cell;

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

a first transmitter 1402, configured to set a first sub-message in the VarRLF-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 VarRLF-Report as a first type, and sending RRCREConfigurationcomplete; when the first target cell is not one candidate cell in the first candidate cell set, setting the type of the first target cell in the VarRLF-report to be a second type, and sending a rrcreetablestablishmentrequest;

in embodiment 14, the rrcreeconfiguration indicates the first candidate cell set; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable.

As an 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 used to indicate the type of the first target cell in the VarRLF-Report.

As an example, the first receiver 1401 receives a UEInformationRequest; the first transmitter 1402, which transmits UEInformationResponse; wherein the UEInformationRequest is used to request the radio link failure related message; the UEInformationResponse includes a RLF-Report related to the radio link failure related message, the RLF-Report including a value of the VarRLF-Report.

As an embodiment, when the first target cell is not one of the first candidate cell set, the method includes: the first receiver 1401, receive rrcreestablistering; the first transmitter 1402, transmitting rrcreestablishcomplete; wherein the RRCREESTABLISHIment is used for triggering the RRCREESTABLISHITECCOMPLETE, and the RRCREESTABLISHITECCOMPLETE comprises the rlf-InfoAvailable.

As an embodiment, the rrcreeconfiguration 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 relates to an 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 to which the first configuration is applied, the RRCReconfiguration indicating the first condition.

The first receiver 1401, for one embodiment, includes the antenna 452, the receiver 454, the multiple antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

For one embodiment, the first receiver 1401 includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, and the receive processor 456 of fig. 4.

For one embodiment, the first receiver 1401 includes the antenna 452, the receiver 454, and the receive processor 456 of fig. 4.

The first transmitter 1402 may include, for example, 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.

The first transmitter 1402 includes, as one example, the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, and the transmission processor 468 of fig. 4.

The first transmitter 1402 includes the antenna 452, the transmitter 454, and the transmitting processor 468 of fig. 4.

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

For one embodiment, the first transceiver 1403 includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the transmitter 454, the multi-antenna transmit processor 457, and the transmit processor 468 shown in fig. 4.

For one embodiment, the first transceiver 1403 includes the antenna 452, the receiver 454, the receive processor 456, the transmitter 454, and the transmit processor 468 shown in fig. 4.

Example 15

Embodiment 15 illustrates a block diagram of a processing apparatus for use in a second node according to an embodiment of the present application; as shown in fig. 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, which completes random access with a first target cell according to valid system information of the first target cell;

a second receiver 1502, configured to set a first sub-message in the VarRLF-Report as an identifier of the first target cell; setting the type of the first target cell in the VarRLF-Report to a first type and receiving rrcreeconfigurationcomplete when the first target cell belongs to a first candidate cell set; when the first target cell is not one of the first candidate cell set, setting the type of the first target cell in the VarRLF-Report to a second type, and receiving a rrcreetablestablishrequest;

in embodiment 15, the first candidate cell set is indicated by rrcreconfigration; in response to determining that the radio connection failed, 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 related to a radio link failure related message; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable.

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

As an embodiment, when the first target cell is not one of the first candidate cell set, the method includes: the second transmitter 1501, sending rrcreestablistering; the second receiver 1502 receives rrcelestablishcomplete; wherein the RRCREESTABLISHIment is used for triggering the RRCREESTABLISHITECCOMPLETE, and the RRCREESTABLISHITECCOMPLETE comprises the rlf-InfoAvailable.

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

The second transmitter 1501 includes, for one embodiment, the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

The second transmitter 1501 includes the antenna 420, the transmitter 418, the multi-antenna transmit processor 471 and the transmit processor 416 of fig. 4.

The second transmitter 1501 includes the antenna 420, the transmitter 418, and the transmit processor 416 of fig. 4 of the present application, as one example.

For one embodiment, 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.

For one embodiment, the second receiver 1502 includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, and the receive processor 470 shown in fig. 4.

For one embodiment, the second receiver 1502 includes the antenna 420, the receiver 418, and the receive processor 470 shown in fig. 4.

The second transceiver 1503 includes, for one embodiment, 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 shown in fig. 4 of the present application.

The second transceiver 1503 includes, for one embodiment, the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the receiver 418, the multi-antenna receive processor 472, and the receive processor 470 in fig. 4 of the present application.

The second transceiver 1503 includes the antenna 420, the transmitter 418, the transmit processor 416, the receiver 418, and the receive processor 470 shown in fig. 4 of the present application, for example.

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

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

Claims

1. A first node configured 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 used to indicate the type of the first target cell in the VarRLF-Report.

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

the first receiver receives a UEInformationRequest;

the first transmitter is used for transmitting UEInformationResponse;

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

the first receiver receives RRCREESTABLISHMENT;

the first transmitter transmits RRCREESTABLISHMETCOMPLETE;

6. The first node according to any of claims 1 to 5, wherein the RRCReconfiguration 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 relates to an RRC reconfiguration.

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

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

the second receiver sets the first sub-message in the VarRLF-Report as the identifier of the first target cell; setting the type of the first target cell in the VarRLF-Report to a first type and receiving rrcreeconfigurationcomplete when the first target cell belongs to a first candidate cell set; when the first target cell is not one of the first candidate cell set, setting the type of the first target cell in the VarRLF-Report to a second type, and receiving a rrcreetablestablishrequest;

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

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

setting a first sub-message in the VarRLF-Report as an identifier of a first target cell; setting the type of the first target cell in the VarRLF-Report to a first type and receiving rrcreeconfigurationcomplete when the first target cell belongs to a first candidate cell set; when the first target cell is not one of the first candidate cell set, setting the type of the first target cell in the VarRLF-Report to a second type, and receiving a rrcreetablestablishrequest;

wherein the first candidate cell set is indicated by RRCRECONFITTION; in response to determining that the radio connection failed, a VarRLF-Report is generated and a first target cell is selected; obtaining valid system information for the first target cell; the VarRLF-Report is related to a radio link failure related message; the RRCRECONFIfigurationcomplete includes rlf-InfoAvailable.