CN113453244A - Method and arrangement in a communication node used for wireless communication - Google Patents

Method and arrangement in a communication node used for wireless communication Download PDF

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Publication number
CN113453244A
CN113453244A CN202010223482.2A CN202010223482A CN113453244A CN 113453244 A CN113453244 A CN 113453244A CN 202010223482 A CN202010223482 A CN 202010223482A CN 113453244 A CN113453244 A CN 113453244A
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signaling
message
target cell
cell
node
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CN202010223482.2A
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CN113453244B (en
Inventor
张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Priority to CN202310327159.3A priority Critical patent/CN116233894A/en
Priority to CN202310349827.2A priority patent/CN116405959A/en
Priority to CN202010223482.2A priority patent/CN113453244B/en
Priority to PCT/CN2021/080151 priority patent/WO2021180156A1/en
Publication of CN113453244A publication Critical patent/CN113453244A/en
Priority to US17/889,398 priority patent/US20220400417A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method and arrangement in a communication node for wireless communication is disclosed. A communication node receiving first signaling, the first signaling indicating a first set of candidate cells; determining that a radio connection has failed; selecting a first target cell in response to said determining that the radio connection failed; transmitting a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including a first message; one of the second signaling and the third signaling is transmitted; the first message is used to determine whether the radio link failure related message is present. The scheme that the related information of the radio link failure is not reported after the radio connection failure is recovered is provided, unnecessary information reporting can be avoided, signaling overhead is reduced, and network optimization is facilitated.

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) reporting by the UE may be used for coverage optimization and mobility robustness optimization, and the UE stores the latest RLF or information related to handover Failure and indicates RLF reporting availability at each subsequent RRC (Radio resource Control) connection re-establishment and cell handover until the network acquires an RLF report or 48 hours after the RLF or detects a handover Failure. Self-organizing Networks (SON) include network Self-configuration and Self-optimization, and 3GPP (the 3rd Generation Partnership Project) supports data collection and enhancement Work Items (WI) of SON through NR (new radio, new air interface) SON/MDT (Minimization of Drive Tests) in RAN #86, and data collection characteristics of SON including mobility enhancement optimization, successful handover report, and UE (user equipment) history information in EN-DC (E-UTRA NR Dual Connectivity); the data collection characteristics of the MDT are supported, and include 2-stepRACH (random Access channel) optimization, RLF (radio Link Format) reporting and the like. Release16 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. Release16 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 Release16, 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). Release16 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 selects a CHO candidate cell and performs a CHO procedure, the radio connection failure is recovered by performing RRC connection reconfiguration without performing RRC connection re-establishment. Since the UE already stores the radio link failure related message, the RRC connection completion confirmation message carries an indication that the UE has the radio link failure related message, so that the UE reports the current RLF when the base station schedules the UE information. Since the radio connection failure has been recovered, the UE reporting the currently stored RLF information may have an impact on network optimization and mobility enhancement, and the radio link failure report needs to be enhanced.
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 first signaling, the first signaling indicating a first set of candidate cells; determining that a radio connection has failed; selecting a first target cell in response to said determining that the radio connection failed;
transmitting a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is transmitted;
wherein the first message is used to determine whether the radio link failure related message is present.
As an embodiment, the problem to be solved by the present application includes: in the conventional scheme, even if radio link recovery is performed after RLF, the UE still reports the RLF information, thereby affecting the network optimization strategy.
As an embodiment, the problem to be solved by the present application includes: when the UE experiences RLF and recovers, the base station is still informed of the RLF information on the UE side through the RRC connection reconfiguration complete message.
As an embodiment, the problem to be solved by the present application includes: when the MCG generates RLF and performs MCG fast recovery through the SCG, the UE stores the RLF information and notifies the base station that the UE has the RLF information in the RRC connection reconfiguration complete message.
As an embodiment, the problem to be solved by the present application includes: when the serving cell has Radio Link Failure (RLF) and recovers through Conditional Handover (CHO), the UE stores the RLF information and informs the base station that the UE has the RLF information in an RRC connection reconfiguration complete message.
As an embodiment, the problem to be solved by the present application includes: when RLF occurs and recovers, which does not have much impact on network coverage optimization and mobility enhancement, the UE stores and occurs RLF reports increasing signaling overhead.
As an embodiment, the problem to be solved by the present application includes: RLF reporting after RLF occurrence and recovery increases the complexity of network optimization.
As an embodiment, the characteristics of the above method include: after RLF occurred and recovered, no statistics were performed as RLF.
As an embodiment, the characteristics of the above method include: after RLF, a CHO cell is selected for link recovery, and RLF reporting is not needed.
As an embodiment, the characteristics of the above method include: after MCG RLF is carried out, the SCG carries out MCG fast recovery without RLF reporting.
As an embodiment, the characteristics of the above method include: after RLF, a cell is selected, and if the selected cell is a CHO cell, CHO recovery is performed without performing an RRC connection re-establishment procedure.
As an embodiment, the characteristics of the above method include: and selecting a cell after RLF, and if the selected cell belongs to the MCG, performing fast recovery of the MCG without performing RRC connection reestablishment process.
As an example, the benefits of the above method include: reducing the RLF information storage at the UE side.
As an example, the benefits of the above method include: unnecessary RLF reporting is reduced.
As an example, the benefits of the above method include: and the optimization of the network coverage strategy is facilitated.
As an example, the benefits of the above method include: mobility robustness optimization is facilitated.
As an example, the benefits of the above method include: signaling overhead is reduced.
As an example, the benefits of the above method include: and the complexity of network optimization is reduced.
According to one aspect of the application, the method is characterized by comprising the following steps:
receiving a second message;
sending a third set of information;
wherein the second message is used to trigger transmission of the third set of information, the third set of information comprising a first sub-information block comprising the radio link failure related message; the first target cell does not belong to the first candidate set of cells.
As an embodiment, the characteristics of the above method include: the third set of information does not include the radio link failure related message when the first target cell belongs to the first set of candidate cells.
As an embodiment, the characteristics of the above method include: and when the RLF is recovered, the third information set does not comprise the RLF report.
As an example, the benefits of the above method include: reducing the RLF information storage at the UE side.
As an example, the benefits of the above method include: unnecessary RLF reporting is reduced.
According to one aspect of the application, the method is characterized by comprising the following steps:
sending a fourth signaling;
receiving a fifth signaling;
wherein the fifth signaling is used to trigger the second signaling.
According to one aspect of the application, the radio link failure related message is generated in response to the determination of the radio connection failure.
As an embodiment, the characteristics of the above method include: the UE stores the radio link failure related message after RLF.
According to one aspect of the present application, the radio link failure related message is cleared; wherein the first target cell is one candidate cell in the first set of candidate cells.
As an embodiment, the characteristics of the above method include: clearing the radio link failure related message when selecting a CHO candidate cell.
As an embodiment, the characteristics of the above method include: clearing the radio link failure related message when selecting the MCG cell.
As an embodiment, the characteristics of the above method include: and clearing the related message of the radio link failure before sending the message of completing RRC connection reconfiguration.
As an embodiment, the characteristics of the above method include: and clearing the related message of the radio link failure after the RRC connection reconfiguration completion message is sent.
As an embodiment, the characteristics of the above method include: and clearing the radio link failure related message after completing RLF recovery.
As an embodiment, the characteristics of the above method include: after the RLF is recovered, when the base station schedules the UE information request, the UE side already clears the RLF information.
As an example, the benefits of the above method include: and ensuring that the UE cannot report the RLF related information.
As an example, the benefits of the above method include: reducing the RLF information storage at the UE side.
As an example, the benefits of the above method include: avoiding the UE from RLF reporting.
According to an aspect of the application, characterized in that the first signaling indicates a first condition and a first configuration, the first configuration being 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 characteristics of the above method include: the CHO configuration includes the execution conditions and the RRC configuration of the first target cell.
According to an aspect of the present application, the first sub information block comprises a first identifier and the first condition, the first identifier being used to indicate the first target cell.
As an embodiment, the characteristics of the above method include: and after the RLF recovery fails, the UE reports the CHO execution condition.
As an example, the benefits of the above method include: and the optimization of the network coverage strategy is facilitated.
The application discloses a method in a second node used for wireless communication, characterized by comprising:
receiving a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; receiving third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is received;
wherein the first message is used to determine whether a radio link failure related message exists; the first set of candidate cells is indicated by first signaling; in response to determining that the radio connection failed, the first target cell is selected.
According to one aspect of the application, the method is characterized by comprising the following steps:
sending a second message;
receiving a third set of information;
wherein the second message is used to trigger reception of the third set of information, the third set of information comprising a first sub-information block comprising the radio link failure related message; the first target cell does not belong to the first candidate set of cells.
According to one aspect of the application, the method is characterized by comprising the following steps:
receiving a fourth signaling;
transmitting a fifth signaling;
wherein the fifth signaling is used to trigger the second signaling.
According to one aspect of the application, the radio link failure related message is generated in response to the determination of the radio connection failure.
According to one aspect of the present application, the radio link failure related message is cleared; wherein the first target cell is one candidate cell in the first set of candidate cells.
According to an aspect of the application, characterized in that the first signaling indicates a first condition and a first configuration, the first configuration being associated to the first target cell, the first target cell satisfying the first condition being used to trigger applying the first configuration.
According to an aspect of the present application, the first sub information block comprises a first identifier and the first condition, the first identifier being used to indicate the first target cell.
The present application discloses a first node for wireless communication, comprising:
a first receiver to receive a first signaling, the first signaling indicating a first set of candidate cells; determining that a radio connection has failed; selecting a first target cell in response to said determining that the radio connection failed;
a first transmitter configured to transmit a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling including a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is transmitted;
wherein the first message is used to determine whether the radio link failure related message is present.
The present application discloses a second node for wireless communication, comprising:
a second receiver that receives a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling including the first message; receiving third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is received;
wherein the first message is used to determine whether a radio link failure related message exists; the first set of candidate cells is indicated by first signaling; in response to determining that the radio connection failed, the first target cell is selected.
As an example, compared with the conventional scheme, the method has the following advantages:
when UE experiences radio link failure and recovers through CHO, no RLF reporting is done.
When the UE experiences MCG failure and recovers quickly through MCG, RLF reporting is not performed.
When the UE recovers after experiencing radio link failure, no RLF reporting is performed.
Saving signalling overhead.
Providing more efficient RLF reporting for the network side.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:
fig. 1 shows a flow diagram of the transmission of a first signaling, a second signaling and a third signaling according to an embodiment of the 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 wireless signal transmission flow diagram according to another embodiment of the present application;
fig. 7 shows a schematic diagram of generating and clearing a radio link failure related message according to an embodiment of the application;
fig. 8 shows a schematic diagram of generating and clearing a radio link failure related message according to another embodiment of the present application;
figure 9 shows a schematic diagram of a first signaling indicating a first condition and a first configuration according to an embodiment of the application;
fig. 10 shows a schematic diagram of a first sub information block comprising a first identification and a first condition according to the present application;
fig. 11 shows a schematic diagram of first signaling comprising K1 first type signaling according to an embodiment of the application;
FIG. 12 shows a block diagram of a processing device for use in a first node according to an embodiment of the present application;
figure 13 shows a block diagram of a processing arrangement for use in a second node according to an embodiment of the present application;
fig. 14 shows a schematic diagram of the sending of the third signaling or the second signaling in relation to whether the first target cell belongs to the first candidate cell set according to an embodiment of the application, as shown in fig. 14.
Detailed Description
The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments in the present application can be arbitrarily combined with each other without conflict.
Example 1
Embodiment 1 illustrates a flow chart of transmission of first signaling, second signaling and third signaling according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step, and it is particularly emphasized that the sequence of the blocks in the figure does not represent a chronological relationship between the represented steps.
In embodiment 1, a first node in the present application receives a first signaling in step 101, where the first signaling indicates a first candidate cell set; determining that a radio connection has failed; selecting a first target cell in response to said determining that the radio connection failed; transmitting second signaling when the first target cell does not belong to the first candidate set of cells in step 102, the second signaling comprising a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is transmitted; wherein the first message is used to determine whether the radio link failure related message is present.
As an embodiment, the first signaling is used to configure for Conditional Handover (CHO), which refers to a Handover decided to be performed by the first node when one or more execution conditions are fulfilled.
As an embodiment, the first signaling is used to configure for conditional primary and secondary Cell (PSCell) change (CPC), which is a change of PSCell decided to be performed by the first node when one or more execution conditions are satisfied.
As an embodiment, the first signaling is used to configure for Conditional PSCell Addition (CPA), which refers to addition of pscells decided to be performed by the first node when one or more execution conditions are met.
As one embodiment, the sender of the first signaling comprises a maintaining base station of a 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 (SourceCell).
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 includes a Source (Source) primary cell (PrimaryCell).
As a sub-embodiment of this embodiment, the first serving cell includes a cell that transmits the first signaling.
As an embodiment, the first signaling is used for configuring for the conditional handover.
As an embodiment, the first signaling is used for configuring a candidate cell list for the conditional handover, the candidate cell list being used for adding/deleting/modifying candidate cells of the primary cell.
As an embodiment, the first signaling is used to configure for the conditional primary and secondary cell addition/change.
As an embodiment, the first signaling is used for configuring a candidate cell list for conditional primary and secondary cell addition/modification, and the candidate cell list is used for adding/deleting/modifying candidate cells of the primary and secondary cells.
As an embodiment, the first signaling is transmitted over an air interface.
As an embodiment, the first signaling is transmitted over a wireless interface.
As an embodiment, the first signaling is transmitted through higher layer signaling.
As one embodiment, the first signaling comprises higher layer signaling.
As an embodiment, the first signaling comprises all or part of a higher layer signaling.
As an embodiment, the signaling Radio Bearer of the first signaling includes SRB1 (signaling Radio Bearer 1).
As an embodiment, the signaling Radio Bearer of the first signaling includes SRB3 (signaling Radio Bearer 3).
For one embodiment, the first signaling comprises a Downlink (DL) signaling.
As an embodiment, the logical Channel carrying the first signaling includes a DCCH (Dedicated Control Channel).
As an embodiment, the first signaling includes a Radio Resource Control (RRC) Message (Message).
As an embodiment, the first signaling includes all or part of an IE (Information Element) of an RRC message.
As an embodiment, the first signaling comprises all or part of a Field (Field) in an IE of an RRC message.
As an embodiment, the first signaling comprises a rrcreeconfiguration message.
As an embodiment, the first signaling includes RRCReconfiguration IE.
As an embodiment, the first signaling comprises a conditional reconfiguration field.
As an embodiment, the first signaling comprises a conditional reconfiguration IE.
As an embodiment, the first signaling comprises a condconfonfigtoaddmodlist field.
As an embodiment, the first signaling comprises a condConfigToRemoveList field.
As an embodiment, the first signaling comprises an attemptcondereconfig field.
As an embodiment, the first signaling comprises a CondConfigId IE.
As an embodiment, the first signaling comprises a condconfonfigtoaddmodlist IE.
For one embodiment, the first signaling includes a condExecutionCond field.
As an embodiment, the first signaling includes a condRRCReconfig field.
As an embodiment, the first signaling comprises an RRCConnectionReconfiguration message.
As an embodiment, the first signaling comprises a conditional reconfiguration IE.
As an embodiment, the first signaling comprises a conditional reconfiguration IE.
As an embodiment, the first signaling comprises an attemptconde reconf field.
As an embodiment, the first signaling comprises a condReconfigurationToAddModList field.
As an embodiment, the first signaling includes a condensationtoremovelist field.
As an embodiment, the first signaling comprises a conditionalReconfiguration Id IE.
As one embodiment, the first signaling includes a configurementtoaddmodlist IE.
As an embodiment, the first signaling includes a con reconfigurationtoapply field.
As one embodiment, the first signaling includes a triggerCondition field.
As an embodiment, the sentence said first signaling indicates that the first set of candidate cells comprises the following meaning: the first signaling includes all or part of the first set of candidate cells.
As one embodiment, the first set of candidate cells includes at least one Inactive (Inactive) serving cell.
As one embodiment, the first set of candidate cells includes a plurality of serving cells.
As an embodiment, the first candidate cell set includes K first class candidate cells, where K is a positive integer; the K first type candidate cells are selected based on a measurement report of the first node.
As one embodiment, the radio connection failure includes a Master Cell Group (MCG) radio link failure.
As one embodiment, the radio connection failure comprises a primary cell group synchronization reconfiguration failure (re-configuration with sync).
For one embodiment, the radio connection failure comprises an RRC connection re-establishment (rrcreestablishing) failure.
For one embodiment, the radio connection failure includes a Radio Link Failure (RLF).
For one embodiment, the radio connection Failure includes Handover (HO) Failure (Failure).
As a sub-embodiment of this embodiment, the handover failure comprises a Conditional Handover (CHO) failure.
As a sub-embodiment of this embodiment, the Handover Failure includes a Regular Handover Failure (Failure).
As a sub-embodiment of this embodiment, the Handover Failure includes a daps (dual Active Protocol stack) Handover Failure (HOF).
As one embodiment, the radio connection failure includes a Master Cell Group (MCG) link failure.
As one embodiment, the determining that the radio connection fails comprises: the first node determines that a radio connection with a 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 a first serving cell.
As a sub-embodiment of this embodiment, the wireless measurement includes a measurement Synchronization Signal (Synchronization Signal).
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 SS-RS (Synchronization Signal Reference Signal).
As a sub-embodiment of this embodiment, the wireless measurement includes SSB (Synchronization Signal Block).
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 measurements include a Secondary Synchronization Signal (SSS)
As a sub-embodiment of this embodiment, the wireless measurements comprise measuring SS/PBCH blocks (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, the first node determines that the radio connection failed when timer T310 expires.
As a sub-embodiment of this embodiment, the T310 is for a first serving cell.
For one embodiment, the first node determines that the radio connection failed when timer T312 expires.
As a sub-embodiment of this embodiment, the T312 is for the 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 first target cell is a neighbor cell of the source serving cell.
For one embodiment, the first target cell is a source serving cell.
As an embodiment, the first target cell is a cell selected according to a measurement result.
As an embodiment, the first target cell is a cell selected by a cell selection procedure.
As one embodiment, the first Target Cell includes a Target Candidate Cell (Target Candidate Cell).
As an embodiment, said sentence, in response to said determining that the radio connection fails, selecting the first target cell comprises the following meaning: selecting said first target cell when said first node asserts (clear) that said radio connection fails.
As an embodiment, said sentence, in response to said determining that the radio connection fails, selecting the first target cell comprises the following meaning: when the first node declares the radio connection failure, the cell selected by the first node through performing a cell selection procedure is the first target cell.
As an embodiment, said sentence, in response to said determining that the radio connection fails, selecting the first target cell comprises the following meaning: the selecting the first target cell is triggered by the radio connection failure.
As an embodiment, said sentence, in response to said determining that the radio connection fails, selecting the first target cell comprises the following meaning: after determining that the radio connection fails, a cell selection procedure is triggered, the selected cell being the first target cell.
As one embodiment, the meaning of the response includes the next action.
As one example, the meaning of the response includes feedback.
As an embodiment, the phrase that the first target cell does not belong to the first set of candidate cells includes the following meanings: the first target cell is not one of the first set of candidate cells.
As an embodiment, the phrase that the first target cell does not belong to the first set of candidate cells includes the following meanings: the first target cell is one cell outside the first candidate set of cells.
As an embodiment, the receiver of the second signaling comprises a maintaining base station of the first target cell, the first target cell being one cell outside the first candidate set of cells.
As an embodiment, the second signaling is transmitted over an air interface.
As an embodiment, the second signaling is transmitted over a wireless interface.
As an embodiment, the second signaling is transmitted through higher layer signaling.
As an embodiment, the second signaling comprises higher layer signaling.
As an embodiment, the second signaling comprises all or part of a higher layer signaling.
As one embodiment, the second signaling comprises an RRC message.
As an embodiment, the second signaling includes all or part of an IE of an RRC message.
As an embodiment, the second signaling comprises all or part of a field in an IE of an RRC message.
As an embodiment, the second signaling is used for RRC connection reestablishment procedure.
As an embodiment, the second signaling is used to confirm that the RRC connection reestablishment is successfully completed.
For one embodiment, the signaling radio bearer for the second signaling comprises SRB 1.
As an embodiment, the second signaling includes an Uplink (UL) signaling.
As an embodiment, the logical Channel carrying the second signaling includes a DCCH (Dedicated Control Channel).
For one embodiment, the second signaling comprises a rrcreestablshmenticomplete message.
As an embodiment, the second signaling comprises an rrcconnectionreestablishingcomplete message.
As an embodiment, the sentence, when the first target cell does not belong to the first set of candidate cells, sending second signaling comprises the following meaning: initiating an RRC connection re-establishment procedure when the first target cell selected by the first node is not a CHO candidate cell.
As an embodiment, when the first target cell is one of the first set of candidate cells and the first node fails to establish a connection with the first target cell, sending a second signaling.
As an embodiment, the phrase the second signaling includes that the first message includes the following meaning: the second signaling is used to indicate the presence of the radio link failure related message by the first node.
As an embodiment, the phrase that the first target cell is one of the first set of candidate cells includes the following meanings: the first target cell belongs to the first candidate set of cells.
As an embodiment, the recipient of the third signaling is a maintaining base station of the first target cell.
As an embodiment, the third signaling is transmitted over an air interface.
As an embodiment, the third signaling is transmitted over a wireless interface.
As an embodiment, the third signaling is transmitted through higher layer signaling.
As an embodiment, the third signaling comprises higher layer signaling.
As an embodiment, the third signaling comprises all or part of a higher layer signaling.
As an embodiment, the third signaling comprises an RRC message.
As an embodiment, the third signaling includes all or part of an IE of an RRC message.
As an embodiment, the third signaling comprises all or part of a field in an IE of an RRC message.
As an embodiment, the third signaling is used for RRC connection reconfiguration procedure.
As an embodiment, the third signaling is used for a recovery procedure of the radio connection failure.
As an embodiment, the third signaling is used to confirm that the RRC connection reconfiguration is successfully completed.
As an embodiment, the signaling radio bearer of the third signaling comprises SRB 1.
As an embodiment, the signaling radio bearer of the third signaling comprises SRB 3.
As an embodiment, the third signaling includes an uplink signaling.
As an embodiment, the logical channel carrying the third signaling comprises a DCCH.
As an embodiment, the third signaling includes an rrcconnectionreconfiguration complete message.
As an embodiment, the third signaling includes a rrcreeconfigurationcomplete message.
As an embodiment, the sentence when the first target cell is one candidate cell in the first set of candidate cells, sending a third signaling includes the following meaning: initiating an RRC connection reconfiguration procedure when the first target cell selected by the first node is a CHO candidate cell.
As an embodiment, when the first target cell is one of the first candidate cell set and the first node establishes a connection with the first target cell successfully, third signaling is sent.
As an embodiment, the phrase the third signaling excluding the first message includes the following meanings: the second signaling is used to indicate that the first node is absent the radio link failure related message.
As an embodiment, when the first target cell does not belong to the first candidate cell set, sending a second signaling, the second signaling comprising a first message; and when the first target cell is one of the first set of candidate cells, sending third signaling, the third signaling not including the first message; one of the second signaling and the third signaling is transmitted.
As an embodiment, the second signaling and the third signaling are different RRC messages.
As an embodiment, the receiver of the second signaling and the receiver of the third signaling are different.
As an embodiment, said sentence, one of said second signaling and said third signaling is sent comprising the following meaning: transmitting the second signaling and not transmitting the third signaling.
As an embodiment, said sentence, one of said second signaling and said third signaling is sent comprising the following meaning: transmitting the third signaling and not transmitting the second signaling.
As an embodiment, said sentence, one of said second signaling and said third signaling is sent comprising the following meaning: the second signaling and the third signaling are not transmitted simultaneously.
As an embodiment, the first information is used to determine whether a Radio Link Failure (RLF) related message exists in the VarRLF-Report.
As an embodiment, the first information is used to determine whether there is Handover Failure (HOF) related information in the VarRLF-Report.
As an embodiment, the first message comprises all or part of higher layer signaling.
As an embodiment, the first message comprises all or part of RRC signaling.
As an embodiment, the first message indicates whether the first node currently stores the radio link failure related message.
As an embodiment, the first message indicates whether there is the radio link failure related message that has not been reported yet.
As an embodiment, the first message is used by a receiver to schedule the first node to report a UE information response (UEInformationResponse).
For one embodiment, the first message includes rlf-InfoAvailable.
As one embodiment, the sentence the first message is used to determine whether the radio link failure related message exists includes the following meanings: the first message is used to explicitly indicate whether the radio link failure related message is present.
As a sub-embodiment of this embodiment, the first message includes a boolean value, the boolean value including a true value (Ture) and a non-true value (False).
As an additional embodiment of this sub-embodiment, the first message indicates that the radio link failure related message is present when the first message includes a true value.
As an additional embodiment of this sub-embodiment, when the first message includes a non-true value, the first message indicates that the radio link failure related message is not present.
As an additional embodiment of this sub-embodiment, the true value includes 1, and the non-true value includes 0.
As one embodiment, the sentence the first message is used to determine whether the radio link failure related message exists includes the following meanings: the first message is used to implicitly indicate whether the radio link failure related message is present.
As a sub-embodiment of this embodiment, when the first message exists, the first message indicates that the radio link failure related message exists.
As an adjunct embodiment to this sub-embodiment, the phrase said first message presence includes the following meanings: the first message is set to a true value (true).
As a sub-embodiment of this embodiment, when the first message is absent, the first message indicates that the radio link failure related message is absent.
As an additional embodiment of this sub-embodiment, the phrase the first message does not exist with the following meaning: the first message is default.
As an embodiment, the phrase the second signaling includes that the first message includes the following meaning: the first message is present in the second signaling.
As an embodiment, the phrase the second signaling includes that the first message includes the following meaning: said first message in said second signaling includes a true value.
As an embodiment, the phrase the third signaling excluding the first message includes the following meanings: the first message is absent in the third signaling.
As an embodiment, the phrase the second signaling includes that the first message includes the following meaning: said first message in said second signaling includes a non-true value.
As an embodiment, the radio link failure related message is generated by the first node.
As an embodiment, the radio link failure related message is stored by the first node.
As an embodiment, the radio link failure related message is higher layer information.
As an embodiment, the radio link failure related message relates to the radio connection failure.
As an embodiment, the radio link failure related message is used to determine a serving cell in which the radio connection fails.
As an embodiment, the radio link failure related message is used for determining the radio connection failure related measurement result.
As an embodiment, the radio link failure related message is used to determine the type of the radio connection failure.
As an embodiment, the radio link failure related message is used to determine a cause of the radio connection failure.
As an embodiment, the radio link failure related message is stored in VarRLF-Report.
As an embodiment, the radio link failure related message includes information stored in VarRLF-Report.
As an embodiment, the radio link failure related message includes partial information stored in VarRLF-Report.
As an embodiment, the radio link failure related message is generated and stored when the first node detects (Detected) a radio connection failure.
As an embodiment, the radio link failure related message is generated and stored when the first node asserts (clear) radio connection failure.
As an example, the radio link failure related message is cleared (Clear) when Detected (Detected) for more than 48 hours.
As an embodiment, the last radio connection failure is used to trigger the generation of the radio link failure related message.
As an embodiment, the radio link failure related information includes plmn-IdentityList.
For one embodiment, the radio link failure related information includes measResultLastServCellIE.
As an embodiment, the radio link failure related information includes measresultneighcellsis ie.
As an embodiment, the radio link failure related information comprises previousps cellid.
As an embodiment, the radio link failure related information comprises a failed pcellid.
For one embodiment, the radio link failure related information includes connectionFailureType.
For one embodiment, the radio link failure related information includes rlf-Cause.
As an embodiment, the Message (Message), ie (informationelement), and domain (Filed) in the present application include different versions in 3GPP evolution.
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 an embodiment, the gNB203 corresponds to the fourth 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 example, the radio protocol architecture in fig. 3 is applicable to the fourth node in this application.
As an embodiment, the first signaling in this application is generated in the RRC 306.
As an embodiment, the second signaling in this application is generated in the RRC 306.
As an embodiment, the third signaling in this application is generated in the RRC 306.
As an embodiment, the fourth signaling in this application is generated in the RRC 306.
As an embodiment, the fifth signaling in this application is generated in the RRC 306.
As an embodiment, the second message in this application is generated in the RRC 306.
As an embodiment, the third set of information 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 first signaling, the first signaling indicating a first set of candidate cells; determining that a radio connection has failed; selecting a first target cell in response to said determining that the radio connection failed; transmitting a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is transmitted; wherein the first message is used to determine whether the radio link failure related message is present.
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 first signaling, the first signaling indicating a first set of candidate cells; determining that a radio connection has failed; selecting a first target cell in response to said determining that the radio connection failed; transmitting a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is transmitted; wherein the first message is used to determine whether the radio link failure related message is present.
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: first signaling is sent, the first signaling indicating a first set of candidate cells; a radio connection failure is determined; in response to said determining that the radio connection failed, a first target cell is selected; receiving second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; receiving third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is received. Wherein the first message is used to determine whether the radio link failure related message is present.
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: first signaling is sent, the first signaling indicating a first set of candidate cells; a radio connection failure is determined; in response to said determining that the radio connection failed, a first target cell is selected; receiving second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; receiving third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is received. Wherein the first message is used to determine whether the radio link failure related message is present.
For one embodiment, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 are configured to receive a first signaling; at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller/processor 475 is configured to send first signaling.
As one implementation, the antenna 452, the transmitter 454, the transmit processor 468, the controller/processor 459 are configured to send third signaling; at least one of the antenna 420, the receiver 418, the receive processor 470, the controller/processor 475 is configured to receive third signaling.
For one embodiment, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 are configured to receive fifth signaling; at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller/processor 475 is configured to send fifth signaling.
As one implementation, the antenna 452, the transmitter 454, the transmit processor 468, the controller/processor 459 are configured to send second signaling and fourth signaling; at least one of the antenna 420, the receiver 418, the receive processor 470, the controller/processor 475 is configured to receive second signaling and fourth signaling.
For one embodiment, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 are configured to receive a second message; at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller/processor 475 is configured to send a second message.
For one implementation, the antenna 452, the transmitter 454, the transmit processor 468, the controller/processor 459 are configured to send a third set of information; at least one of the antenna 420, the receiver 418, the receive processor 470, the controller/processor 475 is configured to receive a third set of information.
As an embodiment, the first communication device 450 corresponds to a first node in the present application.
As an embodiment, the second communication device 410 corresponds to a second node in the present application.
As an embodiment, the second communication device 410 corresponds to a third node in the present application.
As an embodiment, the second communication device 410 corresponds to a fourth 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 second node N02 is the maintaining base station of the cell determined by the first node U01 through cell selection; 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, the first signaling is received, in step S5102, the third signaling is sent, in step S5103, the fourth signaling is sent, in step S5104, the fifth signaling is received, in step S5105, the second signaling is received, in step S5106, the second message is received, and in step S5107, the third information set is sent.
For theSecond node N02In step S5201, the third signaling is received, in step S5202, the fourth signaling is received, in step S5203, the fifth signaling is sent, in step S5204, the second signaling is received, in step S5205, the second message is sent, and in step S5206, the third set of information is received.
For theThird node N03In step S5301, the first signaling is transmitted.
In embodiment 5, the first signaling indicates a first set of candidate cells; determining that a radio connection has failed; generating the radio link failure related message in response to the determination of the radio connection failure; selecting a first target cell in response to said determining that the radio connection failed; transmitting a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; clearing the radio link failure related message; the first target cell is one candidate cell of the first set of candidate cells; one of the second signaling and the third signaling is transmitted; the first message is used to determine whether the radio link failure related message is present; the fifth signaling is used to trigger the second signaling; the second message is used to trigger transmission of the third set of information, the third set of information comprising a first sub-information block comprising the radio link failure related message; the first target cell does not belong to the first candidate set of cells.
As an embodiment, the second node N02 is a maintaining base station of the first target cell.
As an embodiment, the second node N02 is a maintaining base station of a CHO candidate cell.
As an embodiment, the second node N02 is not a maintaining base station of a CHO candidate cell.
As an embodiment, the third node N03 is a maintaining base station of a cell in which the radio connection failure occurs.
As an embodiment, the third node N03 is a maintenance base station of the cell configuring the CHO.
As an embodiment, the first receiver generates the radio link failure related message.
For one embodiment, the first node U01 generates the radio link failure related message.
As an embodiment, the sentence, in response to the determining that the radio connection fails, generating the radio link failure related message includes the following meanings: and generating the radio link failure related message after determining that the radio connection fails.
As an embodiment, the sentence, in response to the determining that the radio connection fails, generating the radio link failure related message includes the following meanings: and when the radio connection failure occurs, generating the radio link failure related message.
As an embodiment, the sentence, in response to the determining that the radio connection fails, generating the radio link failure related message includes the following meanings: generating said radio link failure related message when said first node U01 asserts (Decare) that said radio connection failed.
As one embodiment, the generating includes storing (Store).
As one embodiment, the generating includes saving (Save).
As one embodiment, the generating includes setting (Set).
As one embodiment, the generating includes recording (Log).
As an example, the phrase generating the radio link failure related message includes the following meanings: setting a field in the VarRLF-Report to information related to the radio connection failure.
As an example, the phrase generating the radio link failure related message includes the following meanings: storing the radio link failure related message to the VarRLF-Report.
As an embodiment, the first receiver clears the radio link failure related message.
For one embodiment, the first node U01 clears the radio link failure related message.
As an example, the sentence "clear the radio link failure related message; the first target cell being one candidate cell of the first set of candidate cells "comprises the following meanings: in response to selecting the first target cell, clearing the radio link failure related message.
As an example, the sentence "clear the radio link failure related message; the first target cell being one candidate cell of the first set of candidate cells "comprises the following meanings: clearing the radio link failure related message when the selected cell is a CHO candidate cell.
As an example, the sentence "clear the radio link failure related message; the first target cell being one candidate cell of the first set of candidate cells "comprises the following meanings: clearing the generated radio link failure related message in response to the first target cell being one of the first set of candidate cells.
As an example, the sentence "clear the radio link failure related message; the first target cell being one candidate cell of the first set of candidate cells "comprises the following meanings: clearing the radio link failure related message when the first target cell is one of the first set of candidate cells and the first node recovers a radio link through the first target cell.
In one embodiment, the radio link failure related message is cleared in response to the phrase sending the third signaling.
As one embodiment, the meaning of clearing includes deleting (Clear).
As one example, the meaning of clearing includes Discard (Discard).
As an example, the meaning of clearance includes Release (Release).
As one embodiment, the sentence clearing the radio link failure related message comprises clearing the radio link failure related message stored in the VarRLF-Report.
As an embodiment, the fourth signaling is transmitted over an air interface.
As an embodiment, the fourth signaling is transmitted over a wireless interface.
As an embodiment, the fourth signaling is transmitted through higher layer signaling.
As an embodiment, the fourth signaling comprises higher layer signaling.
As an embodiment, the fourth signaling comprises all or part of a higher layer signaling.
As an embodiment, the fourth signaling includes a Radio Resource Control (RRC) Message (Message).
As an embodiment, the fourth signaling includes all or part of IE (Information Element) of an RRC message.
As an embodiment, the fourth signaling comprises all or part of a Field (Field) in an IE of an RRC message.
As an embodiment, the signaling radio Bearer for carrying the fourth signaling includes SRB0(SignallingRadio Bearer 1).
As an embodiment, the logical Channel carrying the fourth signaling includes a Common Control Channel (CCCH).
As an embodiment, the fourth signaling is used to initiate an RRC connection reestablishment request.
For one embodiment, the fourth signaling comprises a rrcreestablishrequest message.
For one embodiment, the fourth signaling includes an rrcconnectionreestablishinrequest message.
As an embodiment, the fourth signaling is used to trigger the fifth signaling.
As an embodiment, the fifth signaling is transmitted over an air interface.
As an embodiment, the fifth signaling is transmitted over a wireless interface.
As an embodiment, the fifth signaling is transmitted through higher layer signaling.
As an embodiment, the fifth signaling comprises higher layer signaling.
As an embodiment, the fifth signaling comprises all or part of a higher layer signaling.
As an embodiment, the fifth signaling includes a Radio Resource Control (RRC) Message (Message).
As an embodiment, the fifth signaling includes all or part of IE (Information Element) of an RRC message.
As an embodiment, the fifth signaling comprises all or part of a Field (Field) in an IE of an RRC message.
As an embodiment, the signaling radio bearer carrying said fifth signaling comprises SRB 0.
As an embodiment, the signaling radio Bearer for carrying the fifth signaling includes SRB1(SignallingRadio Bearer 2).
As an embodiment, the logical channel carrying the fifth signaling comprises a DCCH.
As an embodiment, the logical channel carrying the fifth signaling includes a CCCH.
As an embodiment, the fifth signaling is used to reconstruct the SRB 1.
For one embodiment, the fifth signaling comprises a rrcreestablistering message.
For one embodiment, the fifth signaling comprises an RRCConnectionReestablishment message.
As an embodiment, said sentence said fifth signaling is used to trigger said second signaling comprising the following meaning: and when the first node U01 receives the fifth signaling, sending the second signaling.
As an embodiment, said sentence said fifth signaling is used to trigger said second signaling comprising the following meaning: and when the first node U01 successfully completes RRC connection reestablishment according to the fifth signaling, sending the second signaling.
As an embodiment, the second signaling comprises an rrcconnectionreestablishingcomplete message.
For one embodiment, the second signaling comprises a rrcreestablshmenticomplete message.
As an embodiment, the sender of the second message is the same as the sender of the first signaling.
As an embodiment, the sender of the second message is the same as the recipient of the second signaling.
As an embodiment, the sender of the second message is the same as the receiver of the third signaling.
As an embodiment, a sender of the second message is different from a sender of the first signaling, a receiver of the second signaling, and a receiver of the third signaling.
As an embodiment, the sender of the second message comprises a maintaining base station of the first target cell.
As one embodiment, the sender of the second message comprises a maintaining base station of the first serving cell.
As an embodiment, the sender of the second message comprises 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.
For one embodiment, the second message is transmitted over an air interface.
As an embodiment, the second message is transmitted over a wireless interface.
As an embodiment, the second message is transmitted by higher layer signaling.
For one embodiment, the second message includes higher layer signaling.
For one embodiment, the second message includes all or part of higher layer signaling.
For one embodiment, the second message comprises an RRC message.
For one embodiment, the second message includes all or a portion of an IE of an RRC message.
As an embodiment, the second message includes all or part of a field in one IE of an RRC message.
For one embodiment, the second message includes a Downlink (DL) signaling.
For one embodiment, the signaling radio bearer of the second message includes SRB 1.
As an embodiment, the logical channel carrying the second message comprises a DCCH.
As an embodiment, the second message is used to request user equipment information (UEInformation).
As an embodiment, the second message is used to Request (Request) radio link failure related information.
As one embodiment, the second message includes a UEInformationRequest message.
For one embodiment, the second message includes an RLF-ReportReq IE.
For one embodiment, the second message includes rlf-ReportReq field.
For one embodiment, the rlf-ReportReq in the second message, when set to true, is used to request the radio link failure related message.
For one embodiment, when the rlf-ReportReq is not set to true in the second message, the second message is used to not request the radio link failure related message.
As an embodiment, said sentence said second message is used to trigger the sending of said third set of information comprising the following meanings: when the first node U01 receives the second message, the third set of information is sent.
As an embodiment, said sentence said second message is used to trigger the sending of said third set of information comprising the following meanings: the first node U01 determines the information in the third set of information from the received second message.
As an embodiment, the receiver of the third set of messages is the same as the sender of the second message.
For one embodiment, the third set of information is transmitted over an air interface.
As an embodiment, the third set of information is transmitted over a wireless interface.
As an embodiment, the third set of information is transmitted by higher layer signaling.
As an embodiment, the third set of information comprises higher layer signaling.
As an embodiment, the third set of information comprises all or part of a higher layer signaling.
For one embodiment, the third set of information comprises an RRC message.
As an embodiment, the third set of information includes all or part of an IE of an RRC message.
As an embodiment, the third set of information includes all or part of fields in an IE of an RRC message.
As an embodiment, the third information set includes an Uplink (UL) message.
As an embodiment, the third set of information is used for a user equipment information response.
As an embodiment, the third set of information is used for reporting a radio link failure related message.
For one embodiment, the signaling radio bearer for the third set of information includes SRB 1.
As an embodiment, the signaling radio Bearer of the third signaling set includes SRB2(SignallingRadio Bearer 2).
As an embodiment, the logical channel carrying the third set of information comprises a DCCH.
As an embodiment, the third set of information comprises a UEInformationResponse message.
For one embodiment, the third set of information includes rlf-Report IE, and the rlf-Report IE includes the radio link failure related message.
As an embodiment, the sentence, the third set of information comprises a first sub-block of information comprising the following meaning: the first sub information block is one or more IEs in the third information set message.
As an embodiment, the sentence, the third set of information comprises a first sub-block of information comprising the following meaning: the first sub-information block is one or more fields of an IE in the third information set message.
For one embodiment, the first sub information block includes rlf-Report field.
For one embodiment, the first sub information block includes a partial field in the RLF-Report-r 9.
For one embodiment, the first sub information block includes a partial field in the RLF-Report-r 16.
For one embodiment, the first sub information block includes all fields in the RLF-Report-r 9.
For one embodiment, the first sub information block includes all fields in the RLF-Report-r 16.
As an embodiment, the phrase the first sub information block comprising the radio link failure related message comprises the following meaning: the first sub information block includes all of the radio link failure related messages.
As an embodiment, the phrase the first sub information block comprising the radio link failure related message comprises the following meaning: the first sub information block comprises part of the radio link failure related message.
As one embodiment, the first message is used to determine the sending of the second message.
As one embodiment, the first message is used to trigger the second message.
As an embodiment, the receiver of the first message determines the sending time of the second message from the first message.
As an embodiment, the receiver of the first message determines the sending time of the second message based on the assistance of the first message.
As an embodiment, the sending time of the second message is determined by the recipient of the first message.
As an embodiment, the receiver of the first message determines the transmission time of the second message according to the first message and the scheduling result of the scheduler.
As one embodiment, dashed box F1 is optional.
As one embodiment, dashed box F2 is optional.
As one embodiment, the dashed box F1 exists, and the dashed box F2 does not exist.
As one embodiment, the dashed box F1 does not exist, and the dashed box F2 exists.
Example 6
Embodiment 6 illustrates a wireless signal transmission flowchart according to another embodiment of the present application, as shown in fig. 6. The second node N02 is the maintaining base station of the cell determined by the first node U01 through cell selection; the third node N03 is a maintaining base station of the first node U01's source cell; the fourth node N04 is a secondary node; 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(a), a sixth signaling is transmitted or in step S6101(b), the first signaling is received in step S6102, the third signaling is transmitted in step S6103, the fourth signaling is transmitted in step S6104, the fifth signaling is received in step S6105, the second signaling is transmitted in step S6106, the second message is received in step S6107, and the third information set is transmitted in step S6108.
For theSecond node N02In step S6201, the fourth signaling is received, in step S6202, the fifth signaling is sent, in step S6203, the second signaling is received, in step S6204, the second message is sent, and in step S6205, the third information set is received.
For theThird node N03The sixth signaling is received in step S6301, and the third signaling is received in step S6302.
For theFourth node N04The sixth signaling is received in step S6401, and the first signaling is transmitted in step S6402.
In embodiment 6, a radio connection failure is determined; generating the radio link failure related message in response to the determination of the radio connection failure; selecting a first target cell in response to said determining that the radio connection failed; the sixth signaling is used to indicate the radio connection failure; the first signaling indicates a first set of candidate cells; transmitting a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; clearing the radio link failure related message; the first target cell is one candidate cell of the first set of candidate cells; one of the second signaling and the third signaling is transmitted; the first message is used to determine whether the radio link failure related message is present; the fifth signaling is used to trigger the second signaling; the second message is used to trigger transmission of the third set of information, the third set of information comprising a first sub-information block comprising the radio link failure related message; the first target cell does not belong to the first candidate set of cells.
In embodiment 6, a first receiver determines that a radio connection has failed; selecting a first target cell in response to said determining that the radio connection failed; receiving first signaling, the first signaling indicating a first set of candidate cells; a first transmitter configured to transmit a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling including a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is transmitted; the first message is used to determine whether the radio link failure related message is present.
For one embodiment, the first node U01 is connected to the third node N03 and the fourth node N04 via dual connections, the third node N03 being a primary node and the fourth node N04 being a secondary node.
As an embodiment, the third node N03 comprises a master node, which is associated to a Master Cell Group (MCG) comprising one Primary Cell (Primary Cell, PCell) and M1 secondary cells (secondary Cell, SCell), the M1 being a non-negative integer.
As an embodiment, the fourth node N04 comprises secondary nodes, the secondary cells being associated to a Secondary Cell Group (SCG) comprising one Primary secondary Cell (PSCell) and M2 secondary cells (SCell), the M2 being a non-negative integer.
For one embodiment, the first node U01 determines that the radio connection failure comprises a radio link failure of the MCG.
For one embodiment, the first node U01 determines that the radio connection failure comprises a radio link failure of the SCG.
As an embodiment, said sentence, in response to said determining that the radio connection fails, selecting the first target cell comprises the following meaning: and selecting to execute RRC connection reestablishment or RRC connection recovery as the response of the determined radio connection failure.
As an embodiment, said sentence, in response to said determining that the radio connection fails, selecting the first target cell comprises the following meaning: in response to the determination of the radio connection failure, selecting to send the sixth signaling to the third node N03 or the fourth signaling to the second node N02.
As an embodiment, said sentence, in response to said determining that the radio connection fails, selecting the first target cell comprises the following meaning: the first target cell comprises the PCell if the first node U01 is configured to perform recovery of MCG; otherwise, the first target cell includes a cell determined by the first node U01 through cell reselection.
For one embodiment, the first target cell comprises a source serving cell.
As one embodiment, the first target cell includes a PCell.
As one embodiment, the first target cell includes one cell determined by cell reselection.
As an embodiment, the first target cell is associated to the second node N02.
As an embodiment, the first target cell is associated to the third node N03.
As one embodiment, the sentence selecting the first target cell includes determining the first target cell.
As an embodiment, the first transmitter transmits sixth signaling, which is used to indicate MCG transmission radio connection failure.
As an embodiment, the receiver of the sixth signaling comprises the third node N03.
As an embodiment, the receiver of the sixth signaling comprises the fourth node N04.
As an embodiment, the sixth signaling is transmitted over an air interface.
As an embodiment, the sixth signaling is transmitted over a wireless interface.
As an embodiment, the sixth signaling is transmitted through higher layer signaling.
As an embodiment, the signaling Radio Bearer for carrying the sixth signaling includes SplitSRB1 (signaling Radio Bearer 1).
As an embodiment, the signaling Radio Bearer for carrying the sixth signaling includes SRB3 (signaling Radio Bearer 3).
As an embodiment, when the SRB3 is configured, the sixth signaling is sent to the fourth node N04 through the SRB 3; when the SRB3 is not configured, the sixth signaling is sent to the third node N03 through the SRB 1.
As an embodiment, the logical Channel carrying the sixth signaling includes a DCCH (Dedicated Control Channel).
As an embodiment, the sixth signaling comprises higher layer signaling.
As an embodiment, the sixth signaling includes all or part of a higher layer signaling.
As an embodiment, the sixth signaling includes a Radio Resource Control (RRC) Message (Message).
As an embodiment, the sixth signaling includes all or part of IE (Information Element) of an RRC message.
As an embodiment, the sixth signaling comprises all or part of a Field (Field) in an IE of an RRC message.
As an embodiment, the sixth signaling includes the radio link failure related message.
As an embodiment, the sixth signaling includes a measurement result of the MCG.
As an embodiment, the sixth signaling includes a reason for MCG failure.
As an embodiment, the sixth signaling comprises a measurement of SCG.
As an embodiment, the sixth signaling includes an MCGFailureInformation message.
As one embodiment, the first signaling is used to configure for MCG failure recovery.
As an embodiment, the first signaling comprises a dlinformation transfermrdc message.
As an embodiment, the first signaling comprises dl-DCCH-MessageNR IE.
As an embodiment, the first signaling is used for transmitting a rrcreeconfiguration message.
As an embodiment, the first signaling is used to transmit a rrcreelease message.
As an embodiment, the first signaling comprises dl-DCCH-MessageEUTRA IE.
As an embodiment, the first signaling is used for transmitting an RRCConnectionReconfiguration message.
As an embodiment, the first signaling is used for transmitting an RRCConnectionRelease message.
As an embodiment, the signaling radio bearer carrying said first signaling comprises SRB 3.
As an embodiment, the sender of the first signaling comprises the fourth node N04.
As an embodiment, the sentence said first signaling indicates that the first set of candidate cells comprises the following meaning: the first signaling is associated to the first set of candidate cells.
As an embodiment, the sentence said first signaling indicates that the first set of candidate cells comprises the following meaning: the first signaling relates to the first set of candidate cells.
As an embodiment, the sentence said first signaling indicates that the first set of candidate cells comprises the following meaning: the first signaling is used to configure for the first set of candidate cells.
As one embodiment, the first set of candidate cells includes an MCG.
As one embodiment, the first set of candidate cells includes a PCell.
For one embodiment, the first set of candidate cells includes a source cell.
As an embodiment, the first set of candidate cells is associated to the third node N03.
As an embodiment, the sentence clears the radio link failure related message; the first target cell being one of the first set of candidate cells comprises the following meanings: clearing the radio link failure related message in response to the first target cell being one of the first set of candidate cells.
As an embodiment, the sentence clears the radio link failure related message; the first target cell being one of the first set of candidate cells comprises the following meanings: clearing the radio link failure related message when the first target cell is the PCell.
As an embodiment, the sentence clears the radio link failure related message; the first target cell being one of the first set of candidate cells comprises the following meanings: and clearing the radio link failure related message when MCG fast recovery is performed.
As an embodiment, the sentence when the first target cell is one candidate cell in the first set of candidate cells, sending a third signaling includes the following meaning: transmitting the third signaling when the first target cell is a PCell of an MCG.
As an embodiment, the third signaling is used to confirm that RRC connection reconfiguration is successfully completed.
As an embodiment, the receiver of the third signaling comprises the third node N03.
As an embodiment, the receiver of the third signaling comprises the PCell.
As an embodiment, the third signaling includes a rrcreeconfigurationcomplete message.
As an embodiment, the third signaling includes an rrcconnectionreconfiguration complete message.
As an embodiment, the third signaling does not include the first message.
As an embodiment, the third signaling is used to indicate that the first node U01 does not have the radio link failure related message.
As an embodiment, the sentence, when the first target cell does not belong to the first set of candidate cells, sending second signaling comprises the following meaning: transmitting the second signaling when the first target cell is one determined by cell selection.
For one embodiment, the fourth signaling comprises a rrcreestablishrequest message.
For one embodiment, the fourth signaling includes an rrcconnectionreestablishinrequest message.
For one embodiment, the fifth signaling comprises a rrcreestablistering message.
For one embodiment, the fifth signaling comprises an RRCConnectionReestablishment message.
As an embodiment, the second signaling is used to confirm that RRC connection reestablishment is successfully completed.
As an embodiment, the receiver of the second signaling comprises the second node N02.
As an embodiment, the receiver of the second signaling comprises a maintaining base station of a cell other than the first target cell.
For one embodiment, the second signaling comprises a rrcreestablshmenticomplete message.
As an embodiment, the second signaling comprises an rrcconnectionreestablishingcomplete message.
As an embodiment, the second signaling is used to indicate the presence of the radio link failure related message to the first node U01.
As an embodiment, before the third signaling is sent, the radio link failure related message is cleared.
As an embodiment, after the third signaling is sent, the radio link failure related message is cleared.
As an embodiment, the second message is not used for requesting the RLF report when the third signaling is sent.
For one embodiment, the second message does not include rlf-ReportReq when the third signaling is sent.
As an embodiment, when the third signaling is sent, the third set of information does not include the first sub-information block.
As an embodiment, the third set of information does not include the radio link failure related message when the third signaling is sent.
As an embodiment, the dashed boxes F1, F2, F3 are used to perform RRC connection recovery.
As an example, the dashed box F4 is used to perform RRC connection re-establishment.
As one embodiment, dashed box F1 is optional.
As one embodiment, dashed box F2 is optional.
As one embodiment, dashed box F3 is optional.
As one embodiment, dashed box F4 is optional.
As one embodiment, the dashed box F1 exists, and the dashed box F2 does not exist.
As one embodiment, the dashed box F1 does not exist, and the dashed box F2 exists.
As one embodiment, the dashed box F3 exists, and the dashed box F4 does not exist.
As one embodiment, the dashed box F3 does not exist, and the dashed box F4 exists.
Example 7
Embodiment 7 illustrates a schematic diagram of generating and clearing a radio link failure related message according to an embodiment of the present application. 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, a first node receives a first signaling in step S701; determining that the radio connection fails in step S702; generating a radio link failure related message as a response to the determination of the radio connection failure in step S703; selecting a first target cell in step S704, the first target cell belonging to a first candidate cell set; transmitting a third signaling in step S705; the radio link failure related message is cleared in step S706.
As one embodiment, the sender of the first signaling includes the first target cell.
As an embodiment, the first signaling comprises a rrcreeconfiguration message.
As an embodiment, the first signaling comprises an RRCConnectionReconfiguration message.
For one embodiment, the radio connection failure includes a Radio Link Failure (RLF) of the MCG.
As an embodiment, the radio connection failure includes a re-configuration with sync (re-configuration) failure of the MCG.
As an embodiment, the radio connection failure triggers cell selection, by which the selected cell is the first target cell.
As an embodiment, the first signaling comprises a first indicator used to indicate whether the first node is allowed to attempt to perform the first configuration in the present application.
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 a sub-embodiment of this embodiment, the first indicator is configured to indicate that the first node is allowed to attempt to perform the first configuration in the present application.
As a sub-embodiment of this embodiment, the first indicator is not configured to indicate that the first node is not allowed to attempt to perform the first configuration in the present application.
As a sub-embodiment of this embodiment, the configured means present and the unconfigured means absent.
As a sub-embodiment of this embodiment, the first indicator is a field in the first signaling.
As a sub-embodiment of this embodiment, the first indicator comprises an attemptcondereconfig field.
As a sub-embodiment of this embodiment, the first indicator comprises an attemptconderconf field.
As an embodiment, the first indicator is configured in the first signaling.
As an embodiment, the sentence that the first target cell belongs to the first set of candidate cells includes the following meanings: the first target cell is one cell in a first candidate set of cells.
As an embodiment, the first node applies the first configuration if the first target cell belongs to the first candidate set of cells, the first configuration being associated to the first target cell.
As an embodiment, the first node sends the third signaling in response to applying the first configuration.
As an embodiment, the third signaling includes an rrcconnectionreconfiguration complete message.
As an embodiment, the third signaling includes a rrcreeconfigurationcomplete message.
As an embodiment, the third signaling does not include the first message in this application.
As an embodiment, the first node does not add the first message to the third signaling.
As an embodiment, the first node does not include the first message when setting the content of the third signaling.
As an embodiment, when the content in the third signaling is set, the radio link failure related message exists in the first node.
As an embodiment, when the content in the third signaling is set, the first node has the radio link failure related message in VarRLF-Report.
In one embodiment, the first node clears the radio link failure related message in response to sending the third signaling.
As an embodiment, after the third signaling is successfully sent, the first node clears the radio link failure related message.
As an embodiment, the step S801 receiving the first signaling is before the step S802 determining that the radio connection fails.
As an embodiment, the step S801 receiving the first signaling is after the step S802 determining that the wireless connection fails.
Example 8
Embodiment 8 illustrates a schematic diagram of generating and clearing a radio link failure related message according to another embodiment of the present application, as shown in fig. 8. In fig. 8, 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 8, the first node receives a first signaling in step S801; determining that the radio connection fails in step S802; generating a radio link failure related message as the response to the determination of the radio connection failure in step S803; selecting a first target cell in step S804, wherein the first target cell belongs to a first candidate cell set; clearing the radio link failure related message in step S805; the third signaling is transmitted in step S806.
As one embodiment, the sender of the first signaling includes the first target cell.
As an embodiment, the first signaling comprises a rrcreeconfiguration message.
As an embodiment, the first signaling comprises an RRCConnectionReconfiguration message.
For one embodiment, the radio connection failure includes a Radio Link Failure (RLF) of the MCG.
As an embodiment, the radio connection failure includes a re-configuration with sync (re-configuration) failure of the MCG.
As an embodiment, the radio connection failure triggers cell selection, by which the selected cell is the first target cell.
As an embodiment, the first node is allowed to attempt to perform the first configuration in the present application.
As an embodiment, the sentence that the first target cell belongs to the first set of candidate cells includes the following meanings: the first target cell is one cell in a first candidate set of cells.
As an embodiment, the sentence that the first target cell belongs to the first set of candidate cells includes the following meanings: the first target cell is a CHO candidate cell.
As an embodiment, the first node applies the first configuration if the first target cell belongs to the first candidate set of cells, the first configuration being associated to the first target cell.
As an embodiment, the first node clears the radio link failure related message in response to applying the first configuration.
In one embodiment, the first node clears the radio link failure related message in response to selecting the first target cell.
As an embodiment, before the third signaling is sent, the first node clears the radio link failure related message.
As an embodiment, after the radio link failure related message is cleared, the first node sends the third signaling.
As an embodiment, after the radio link failure related message is cleared, the first node does not have the radio link failure related message in VarRLF-Report.
As an embodiment, in response to clearing the radio link failure related message, the third signaling does not include the first message in this application when the first node sets the third signaling.
As an example, the phrase the third signaling does not include that the first message in this application includes the following meanings: the first node does not add the first message to the third signaling.
As an embodiment, when the third signaling is set, the first node does not have the radio link failure related message in VarRLF-Report.
As an embodiment, the radio link failure related message in the VarRLF-Report has been cleared when the third signaling is set.
As an embodiment, the third signaling includes an rrcconnectionreconfiguration complete message.
As an embodiment, the third signaling includes a rrcreeconfigurationcomplete message.
As an embodiment, the step S801 receiving the first signaling is before the step S802 determining that the radio connection fails.
As an embodiment, the step S801 receiving the first signaling is after the step S802 determining that the wireless connection fails.
Example 9
Embodiment 9 illustrates a schematic diagram of a first signaling indication first condition and a first configuration according to an embodiment of the present application, as shown in fig. 9.
In embodiment 9, the first signaling indicates a first condition and a first configuration, the first configuration being associated to the first target cell, the first target cell satisfying the first condition being used to trigger application of the first configuration.
As an embodiment, the phrase said first signalling indicates that the first condition and the first configuration comprise the following meanings: the first signaling includes the first condition and the first configuration.
As an embodiment, the phrase said first signalling indicates that the first condition and the first configuration comprise the following meanings: the first condition and the first configuration are one or more fields in the first signaling, respectively.
For one embodiment, the first Condition includes an Execution Condition (Execution Condition).
As an embodiment, the first condition is used to determine a condition under which the first configuration is applied.
As an embodiment, the first condition is used to determine a condition that an execution condition configuration (Conditional Reconfiguration) is triggered to need to be satisfied.
As an embodiment, the first condition is used to determine an execution condition of the Conditional Handover (CHO) in the present application.
As an embodiment, the first condition is used to determine an execution condition for the conditional PSCell change in the present application.
For one embodiment, the first condition includes a condExecutionCond field.
For one embodiment, the first condition includes a triggerCondition field.
As an embodiment, the first configuration relates to the first target cell.
As an embodiment, the first configuration comprises an RRC configuration of the first target cell.
For one embodiment, the first configuration includes a condRRCReconfig field.
As one embodiment, the first configuration includes a condreconfigurationToApply field.
As an embodiment, said sentence that said first target cell satisfies said first condition is used to trigger application of said first configuration comprises the following meanings: the first configuration of the first target cell is applied by the first node when the first condition is satisfied.
As an embodiment, when the radio connection fails, the first condition need not be evaluated when the first configuration is applied if the selected cell is the first target cell.
For one embodiment, the first condition is satisfied when the first configuration is executed.
For one embodiment, the first condition is not satisfied when the first configuration is executed.
Example 10
Embodiment 10 illustrates a schematic diagram of a first sub information block including a first identifier and a first condition according to an embodiment of the present application, as shown in fig. 10.
In embodiment 10, the first sub information block comprises a first identity and the first condition, the first identity being used to indicate the first target cell.
As an embodiment, the first identity is related to the first target cell.
As one embodiment, the first identification is used to determine a cell used for radio link failure recovery.
As an embodiment, the first identity is used to determine the first target cell.
As an embodiment, the first identity includes a Cell Global Identity (CGI) of the first target cell.
As one embodiment, the first identity includes an Evolved Cell Global Identity (ECGI) of the first target Cell.
As an embodiment, the first identity includes a Physical Cell Identity (PCI) of the first target cell.
As one embodiment, the first identity includes cellglobaliideeutra of the first target cell.
As an embodiment, the first identity comprises a CGI-Info-Logging of the first target cell.
For one embodiment, the first identifier comprises a resessabelishmentcellid.
As one embodiment, the first identifier comprises a reconfigurationCellId.
As one embodiment, the first identifier includes a retrievcelld.
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 condExecutionCond.
As one embodiment, the first condition includes triggerCondition.
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.
As one embodiment, the Trigger quantity (Trigger quantites) evaluating the first condition includes RSRP (Reference Signal Received Power).
As one embodiment, the trigger to evaluate the first condition includes RSRQ (Reference Signal Received Quality).
As an embodiment, the trigger for evaluating the first condition includes SINR (Signal to Interference plus Noise Ratio).
As an embodiment, the trigger evaluating the first condition comprises RSRP and RSRQ.
As an embodiment, the trigger evaluating the first condition comprises RSRP and SINR.
As one example, the trigger quantity includes a Measurement quantity (Measurement quality).
As an embodiment, after the radio connection fails, a radio connection failure recovery failure is performed through the conditional handover in the present application.
As an embodiment, the radio connection failure recovery failure means that the first configuration application fails.
As an embodiment, after the radio connection fails, the radio connection failure recovery is successfully executed through the conditional handover in this application.
As an embodiment, the radio connection failure recovery success means that the first configuration application is successful.
As an embodiment, after the radio connection failure recovery fails, an RRC (radio resource control) connection re-establishment procedure is performed.
As an embodiment, the second signaling is transmitted.
As an embodiment, after the radio connection failure recovery is successful, an RRC connection reconfiguration procedure is performed.
As an embodiment, the third signaling is transmitted.
As an embodiment, the first configuration application fails and the second signaling is sent.
As an embodiment, when the fourth signaling is set, the radio connection failure related message is stored in the VarRLF-Report, and the radio connection failure related message includes the first identifier and the first condition.
As an embodiment, when the fourth signaling is set, the radio connection failure related message is stored in the VarRLF-Report, and the radio connection failure related message includes the first identifier.
As an embodiment, when the fourth signaling is set, the radio connection failure related message is stored in the VarRLF-Report, and the radio connection failure related message includes the first condition.
As an embodiment, the time when the fourth signaling is set is before the fourth signaling is sent.
As an embodiment, when the first target cell is one candidate cell of the first set of candidate cells and the first node fails to apply the first configuration, the first sub information block comprises the radio connection failure related message, which comprises the first identity and the first condition.
As an embodiment, the first sub information block comprises the first identification and the first condition comprises the following meaning: the third set of information comprises a first identification and the first condition.
As an embodiment, when the first target cell is one of the first set of candidate cells and the first node fails to apply the first configuration, the first transmitter sends second signaling, the second signaling comprising the first message.
Example 11
Embodiment 11 illustrates a schematic diagram of first signaling including K1 first-type signaling according to an embodiment of the present application, as shown in fig. 11.
In embodiment 11, the first signaling comprises the K1 first-type signaling; any sub-signaling of the K1 first class of signaling is used to indicate all or part of the first set of candidate cells; the K1 is a positive integer.
As an embodiment, any sub-signaling in the K1 first-type signaling has the same signaling format as the first signaling.
As an embodiment, any sub-signaling in the K1 first-type signaling has a different signaling format from the first signaling.
As an embodiment, any sub-signaling in the K1 first-type signaling is used to carry related information of one or more candidate cells in the first candidate cell set.
As an embodiment, the K1 first-type signaling do not belong to the same RRC (radio resource control) message.
As an embodiment, the candidate cells carried in the K1 first-type signaling collectively form the first candidate cell set.
As an embodiment, any sub-signaling in the K1 first-type signaling includes an rrcreeconfiguration message.
As an embodiment, any sub-signaling in the K1 first-type signaling includes an RRCConnectionReconfiguration message.
As an embodiment, any sub-signaling in the K1 first-type signaling includes an RRCConnectionReconfiguration message.
As an embodiment, any sub-signaling in the K1 first-type signaling includes a conditional reconfiguration ie.
As an embodiment, any sub-signaling in the K1 first-type signaling includes a conditional reconfiguration IE.
As an embodiment, the K1 senders of the first type signaling are the same.
As an embodiment, the K1 senders of the first type signaling are different.
As an embodiment, the K1 first-type signaling is used for configuring for CHO (conditional handover).
As an embodiment, the K1 first-type signaling is used for configuring CPC (conditional pscellchange).
As an embodiment, one of the K1 first-type signaling is sent through SRB1 (signaling Radio Bearer 1).
As an embodiment, one of the K1 first-type signaling is sent through SRB3 (signaling Radio Bearer 3).
Example 12
Embodiment 12 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. 12. In fig. 12, the processing means 1200 in the first node comprises a first receiver 1201, a first transmitter 1202.
The first receiver 1201, receiving a first signaling, the first signaling indicating a first candidate set of cells; determining that a radio connection has failed; selecting a first target cell in response to said determining that the radio connection failed;
the first transmitter 1202, when the first target cell does not belong to the first candidate set of cells, transmitting second signaling, the second signaling comprising a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is transmitted;
in embodiment 12, the first message is used to determine whether the radio link failure related message is present.
For one embodiment, the first receiver 1201 receives a second message; the first transmitter 1202, transmitting a third set of information; wherein the second message is used to trigger transmission of the third set of information, the third set of information comprising a first sub-information block comprising the radio link failure related message; the first target cell does not belong to the first candidate set of cells.
For one embodiment, the first transmitter 1202 transmits the fourth signaling; the first receiver 1201 receives a fifth signaling; wherein the fifth signaling is used to trigger the second signaling.
In one embodiment, the radio link failure related message is generated in response to the determination of the radio connection failure.
As an embodiment, the radio link failure related message is cleared; wherein the first target cell is one candidate cell in the first set of candidate cells.
As an embodiment, the first signaling indicates a first condition and a first configuration, the first configuration being 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 sub information block comprises a first identity and the first condition, the first identity being used to indicate the first target cell.
For one embodiment, the first receiver 1201 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.
For one embodiment, the first receiver 1201 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 1201 includes the antenna 452, the receiver 454, and the receive processor 456 of fig. 4.
For one embodiment, the first transmitter 1202 includes the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4.
For one embodiment, the first transmitter 1202 includes the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, and the transmit processor 468 of fig. 4.
For one embodiment, the first transmitter 1202 includes the antenna 452, the transmitter 454, and the transmitting processor 468 of fig. 4.
Example 13
Embodiment 13 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. 13. In fig. 13, the processing means 1300 in the second node comprises a second transmitter 1301 and a second receiver 1302.
A second receiver 1302, receiving second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising the first message; receiving third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is received;
in embodiment 13, the first message is used to determine whether a radio link failure related message exists; the first set of candidate cells is indicated by first signaling; in response to determining that the radio connection failed, the first target cell is selected.
For one embodiment, the second transmitter 1301, sends a second message; the second receiver 1302, receiving a third set of information; wherein the second message is used to trigger reception of the third set of information, the third set of information comprising a first sub-information block comprising the radio link failure related message; the first target cell does not belong to the first candidate set of cells.
For an embodiment, the second receiver 1302 receives a fourth signaling; the second transmitter 1301, which transmits a fifth signaling; wherein the fifth signaling is used to trigger the second signaling.
As an embodiment, the radio link failure related message is generated in response to the determination of the radio connection failure.
As an embodiment, the radio link failure related message is cleared; wherein the first target cell is one candidate cell in the first set of candidate cells.
As an embodiment, the radio link failure related message is cleared by the first node in the present application.
As an embodiment, the first signaling indicates a first condition and a first configuration, the first configuration being 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 sub information block comprises a first identity and the first condition, the first identity being used to indicate the first target cell.
For one embodiment, the second transmitter 1301 includes the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4.
The second transmitter 1301 includes the antenna 420, the transmitter 418, the multi-antenna transmission processor 471 and the transmission processor 416 in fig. 4.
The second transmitter 1301 includes the antenna 420, the transmitter 418, and the transmission processor 416 of fig. 4.
For one embodiment, the second receiver 1302 includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4.
For one embodiment, the second receiver 1302 includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, and the receive processor 470 shown in fig. 4.
For one embodiment, the second receiver 1302 includes the antenna 420, the receiver 418, and the receive processor 470 shown in fig. 4.
Example 14
Embodiment 14 illustrates a schematic diagram of transmitting the third signaling or the second signaling and whether the first target cell belongs to the first candidate cell set according to an embodiment of the present application, as shown in fig. 14.
In embodiment 14, the first node determines in step S1401 whether the first target cell belongs to the first candidate cell set; transmitting the third signaling in step S1402(a) if the first target cell belongs to the first candidate set of cells; if the first target cell does not belong to the first candidate cell, fourth signaling is sent in step S1402(b), fifth signaling is received in step S1403, and the second signaling is sent in step S1404.
As an embodiment, when the first target cell does not belong to the first candidate cell set, sending the second signaling, the second signaling comprising a first message; transmitting the third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message;
as an embodiment, the step S1402(a) is used for performing RRC connection reconfiguration.
As an embodiment, the step S1402(b), the step S1403, and the step S1404 are used to perform RRC connection re-establishment.
For one embodiment, the first target cell includes a cell selected by a cell reselection (CellSelection) process.
As an embodiment, the first target cell comprises a PCell (primary cell).
As an embodiment, the first set of candidate cells comprises a list of candidate cells for CHO (conditional handover).
As an embodiment, the first set of candidate cells comprises an MCG (MasterCellGroup).
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 (10)

1. A first node configured for wireless communication, comprising:
a first receiver to receive a first signaling, the first signaling indicating a first set of candidate cells; determining that a radio connection has failed; selecting a first target cell in response to said determining that the radio connection failed;
a first transmitter configured to transmit a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling including a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is transmitted;
wherein the first message is used to determine whether the radio link failure related message is present.
2. The first node of claim 1, comprising:
the first receiver receives a second message;
the first transmitter transmits a third information set;
wherein the second message is used to trigger transmission of the third set of information, the third set of information comprising a first sub-information block comprising the radio link failure related message; the first target cell does not belong to the first candidate set of cells.
3. The first node of claim 2, comprising:
the first transmitter transmits a fourth signaling;
the first receiver receives a fifth signaling;
wherein the fifth signaling is used to trigger the second signaling.
4. The first node according to claim 1, wherein the radio link failure related message is generated in response to the determination of the radio connection failure.
5. The first node according to claim 4, wherein the radio link failure related message is cleared; wherein the first target cell is one candidate cell in the first set of candidate cells.
6. The first node according to any of claims 1 to 5, wherein the first signaling indicates a first condition and a first configuration, the first configuration being associated to the first target cell, the first target cell satisfying the first condition being used to trigger applying the first configuration.
7. The first node according to any of claims 2, 3 and 6, wherein the first sub information block comprises a first identity and the first condition, the first identity being used to indicate the first target cell.
8. A second node configured for wireless communication, comprising:
a second receiver that receives a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling including the first message; receiving third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is received;
wherein the first message is used to determine whether a radio link failure related message exists; the first set of candidate cells is indicated by first signaling; in response to determining that the radio connection failed, the first target cell is selected.
9. A method in a first node used for wireless communication, comprising:
receiving first signaling, the first signaling indicating a first set of candidate cells; determining that a radio connection has failed; selecting a first target cell in response to said determining that the radio connection failed;
transmitting a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; transmitting third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is transmitted;
wherein the first message is used to determine whether the radio link failure related message is present.
10. A method in a second node used for wireless communication, comprising:
receiving a second signaling when the first target cell does not belong to the first candidate cell set, the second signaling comprising a first message; receiving third signaling when the first target cell is one of the first set of candidate cells, the third signaling not including the first message; one of the second signaling and the third signaling is received;
wherein the first message is used to determine whether a radio link failure related message exists; the first set of candidate cells is indicated by first signaling; in response to determining that the radio connection failed, the first target cell is selected.
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PCT/CN2021/080151 WO2021180156A1 (en) 2020-03-12 2021-03-11 Methods and devices for mobility enhancement and optimisation in wireless communication
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