CN114080064A

CN114080064A - Method and arrangement in a communication node used for wireless communication

Info

Publication number: CN114080064A
Application number: CN202010810406.1A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2022-02-22

Abstract

A method and arrangement in a communication node for wireless communication is disclosed. The communication node determines that the first cell has radio connection failure; when the second cell is in the first state, determining that the second cell enters a third state and sending a first message as a response to determining that the first cell has the radio connection failure; when the second cell is in the second state, as a response for determining that the first cell has the radio connection failure, sending a second message; when the second cell is in a third state, sending the first message as a response to determining that the radio connection failure occurs in the first cell; the first message is used for wireless connection recovery; the second message is used for wireless connection re-establishment; when the second cell is in the first state, not monitoring control signaling on the second cell; monitoring the control signaling on the second cell while the second cell is in the third state.

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 dual connectivity.

Background

Release 16 researches a Fast MCG (Master Cell Group) Fast Recovery (Fast MCG Recovery) in a Work Item (Work Item, WI) of "Dual Connectivity and Carrier Aggregation enhancement (edca)", and recovers an MCG Link through an SCG (Secondary Cell Group ) after supporting an MCG RLF (Radio Link Failure). Release 17 supports an efficient SCG Activation/deactivation (De-Activation) mechanism for a Multi-Radio Dual-Connectivity (MR-DC) Enhancements work item.

Disclosure of Invention

When the MCG generates RLF, if a certain condition is satisfied, the link recovery may be performed through the SCG without triggering RRC (Radio Resource Control) connection re-establishment (Reestablishment). After introducing the activation/deactivation mechanism of SCG, it is necessary to enhance how to support MCG fast recovery when SCG is in the deactivated state.

In view of the above, the present application provides a solution. In the above description of the problem, a Terrestrial Network (TN) scenario is taken as an example; the method and the device are also applicable to Non-Terrestrial Network (NTN) scenes, and achieve technical effects similar to those in Terrestrial transmission scenes. In addition, the adoption of a unified solution for different scenarios also helps to reduce hardware complexity and cost.

As an example, the interpretation of the term (telematics) in the present application refers to the definition of the specification protocol TS36 series of the 3GPP (the 3rd Generation Partnership Project).

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

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

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

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:

determining that a radio connection failure occurs in a first cell;

when the second cell is in the first state, determining that the second cell enters a third state and sending a first message as a response to determining that the first cell has the radio connection failure; when the second cell is in the second state, sending a second message as a response for determining that the radio connection failure occurs in the first cell; when the second cell is in a third state, sending the first message as a response to determining that the radio connection failure occurs in the first cell;

wherein the first message is used for wireless connection recovery; the second message is used for wireless connection re-establishment; when the second cell is in the first state, the first node does not monitor control signaling on the second cell; the first node monitors the control signaling on the second cell when the second cell is in the third state.

As an embodiment, the problem to be solved by the present application includes: when RLF occurs in a first cell, if a second cell is in a dormant state, whether link recovery of the first cell can be performed through the second cell.

As an embodiment, the problem to be solved by the present application includes: how to activate the second cell when RLF occurs in the first cell and the second cell is in a dormant state.

As an embodiment, the problem to be solved by the present application includes: when the first cell is RLF, if the second cell is in a dormant state, whether the MCG Failure Information procedure can be performed.

As an embodiment, the problem to be solved by the present application includes: how to avoid performing RRC connection re-establishment if the second cell is in a dormant state when RLF occurs in the first cell.

As an embodiment, the characteristics of the above method include: when RLF occurs in the first cell, if the second cell is in a dormant state, the second cell is activated first, and then the MCG Failure Information process is executed.

As an embodiment, the characteristics of the above method include: and the UE controls the second cell to be activated from the dormant state.

As an example, the benefits of the above method include: the reliability is improved.

As an example, the benefits of the above method include: the robustness is improved.

As an example, the benefits of the above method include: avoiding triggering RRC connection re-establishment.

According to an aspect of the application, wherein the act of determining that the second cell enters the third state comprises resuming radio bearers with the second cell.

According to an aspect of the application, wherein the act of determining that the second cell enters the third state comprises:

transmitting a first wireless signal;

wherein the first wireless signal is used to trigger the second cell to enter a third state.

receiving a second wireless signal;

wherein the second radio signal is used to trigger the second cell to enter a third state.

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

receiving a first signaling;

wherein the first signaling is used to instruct the second cell to enter the first state.

receiving a second signaling;

starting a first timer when the first condition set is satisfied; transitioning the second cell to the third state and stopping the first timer during operation of the first timer; when the first timer is expired, initiating an RRC connection reestablishment process;

wherein the second signaling comprises a first expiration value, the first expiration value being used to determine a maximum run time of the first timer.

receiving a third signaling;

wherein the third signaling is used to indicate whether the second cell enters the third state from the first state.

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

determining that the second cell enters a third state and receiving a first message in response to the first cell being determined to have a radio connection failure when the second cell is in the first state; receiving a second message in response to the first cell being determined to have a radio connection failure when the second cell is in the second state; receiving the first message in response to the first cell being determined to have a radio connection failure when the second cell is in a third state;

According to an aspect of the application, wherein the act of determining that the second cell enters the third state comprises resuming a radio bearer between the sender of the first message and the second cell.

receiving a first wireless signal;

transmitting a second wireless signal;

sending a first signaling;

sending a second signaling;

wherein the second signaling comprises a first expiration value, the first expiration value being used to determine a maximum run time of a first timer; when the first condition set is satisfied, a first timer is started; the second cell is transitioned to the second state and the first timer is stopped during the first timer operation; when the first timer expires, an RRC connection re-establishment procedure is initiated.

sending a third signaling;

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

the first receiver is used for determining that the radio connection failure occurs in the first cell;

a first transmitter, configured to determine that a second cell enters a third state and transmit a first message in response to determining that the first cell has the radio connection failure when the second cell is in the first state; when the second cell is in the second state, sending a second message as a response for determining that the radio connection failure occurs in the first cell; when the second cell is in a third state, sending the first message as a response to determining that the radio connection failure occurs in the first cell;

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

a second type receiver, which determines that the second cell enters a third state and receives a first message as a response to the first cell being determined to have a radio connection failure when the second cell is in the first state; receiving a second message in response to the first cell being determined to have a radio connection failure when the second cell is in the second state; receiving the first message in response to the first cell being determined to have a radio connection failure when the second cell is in a third state;

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

improving reliability;

improving robustness;

avoid triggering RRC connection re-establishment.

Drawings

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

FIG. 1 illustrates a flow diagram of transmission of a first message and a second message according to one embodiment of the present application;

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

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

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

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

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

FIG. 7 illustrates a wireless signal transmission flow diagram according to yet another embodiment of the present application;

fig. 8 shows a transmission flow diagram of the second signaling and the third signaling according to an embodiment of the application;

figure 9 shows a schematic diagram of the behaviour of a first node when a second cell is in a different state according to one embodiment of the application;

FIG. 10 shows a schematic diagram of a first domain being used to indicate a reason for transmitting a first wireless signal according to one embodiment of the present application;

fig. 11 shows a schematic diagram in which a first bit map is used to indicate the status of a second cell according to an embodiment of the application;

FIG. 12 shows a schematic diagram of a first node simultaneously connecting with a second node and a third node according to an embodiment of the present application;

FIG. 13 shows a block diagram of a processing device for use in a first node according to an embodiment of the present application;

fig. 14 shows a block diagram of a processing device for use in a node of the second type according to an embodiment of the present application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of transmission of a first message and a second message 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 determines that a radio connection failure occurs in a first cell in step 101; determining that the second cell enters a third state and transmitting a first message in response to determining that the radio connection failure occurs in the first cell when the second cell is in the first state in step 102; when the second cell is in the second state, sending a second message as a response for determining that the radio connection failure occurs in the first cell; when the second cell is in a third state, sending the first message as a response to determining that the radio connection failure occurs in the first cell; wherein the first message is used for wireless connection recovery; the second message is used for wireless connection re-establishment; when the second cell is in the first state, the first node does not monitor control signaling on the second cell; the first node monitors the control signaling on the second cell when the second cell is in the third state.

For one embodiment, the act of determining that the first cell has a radio connection failure comprises: determining that a radio connection between the first node and the first cell failed.

For one embodiment, the act of determining that the first cell has a radio connection failure comprises: consider that the radio connection failure is detected for the first cell.

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

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

As a sub-example of this embodiment, the Handover failure comprises a Conditional Handover (CHO) failure.

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

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

As an embodiment, when the action determines that a radio connection failure occurs in the first cell, a DAPS (Dual Active Protocol Stack) Bearer (Bearer) is not configured.

As one embodiment, the first node determines that the radio connection failed based on radio measurements.

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

As a sub-embodiment of this embodiment, the wireless measurement includes measurement for at least one of { Synchronization Signal (Synchronization Signal), Cell-specific Reference Signal (CRS), SS-RS (Synchronization Signal Reference Signal, Synchronization Reference Signal), SSB (Synchronization Signal Block ), Primary Synchronization Signal (Primary Synchronization Signal), Secondary Synchronization Signal (SSs), SS Synchronization Signal/PBCH (Physical Broadcast Channel) Block (Block), Channel State indication Reference Signal (CSI-RS), Physical Downlink Control Channel (PDCCH) common to the cells, PBCH }.

As an embodiment, when a Timer (Timer) T310 in the first cell expires (expires), it is determined that the radio connection failure occurs in the first cell.

For one embodiment, the radio connection failure of the first cell is determined when the timer T312 of the first cell expires.

As an embodiment, when a Random Access (RA) problem indication from a Medium Access Control (MCG MAC) is received and none of the timers T300, T301, T304, T311, and T319 are running, it is determined that the radio connection failure occurs in the first cell.

As an embodiment, when receiving an indication of reaching a maximum number of retransmissions from a Master Cell Group (MCG) Radio Link Control (RLC), it is determined that the Radio connection failure occurs in the first Cell.

As an embodiment, if the connection is made as an iab (integrated Access and backhaul) node, when a BH RLF indication is received from an MCG at a BAP entity, it is determined that the radio connection failure occurs in the first cell.

As an embodiment, when the timer T304 is not running and a Listen Before Talk (LBT) failure indication of a continuous uplink of the MCG MAC is received, it is determined that the radio connection failure occurs in the first cell.

For one embodiment, the first cell is determined to have the radio connection failure when the timer T304 expires.

As an embodiment, when receiving an indication of a maximum number of retransmissions to reach one SRB (Signaling Radio Bearer) or DRB (Data Radio Bearer) from the MCG RLC, it is determined that a Radio connection failure occurs in the first cell.

As an embodiment, when a random access problem indication from the MCG MAC is received and none of the timers T300, T301, T304, and T311 are running, it is determined that a radio connection failure occurs in the first cell.

As one embodiment, the first Cell includes a Serving Cell (Serving Cell).

As one embodiment, the first Cell includes a Special Cell (SPCell).

As a sub-embodiment of this embodiment, the special Cell includes a Primary Cell (PCell).

As an additional embodiment of this sub-embodiment, the primary cell comprises an MCG.

As an additional embodiment of the sub-embodiment, the maintaining base station of the primary cell includes a primary Node (Master Node, MN).

As a sub-embodiment of this embodiment, the special Cell includes a Primary secondary Cell (PSCell).

As an additional embodiment of this sub-embodiment, the primary and Secondary cells include SCGs (Secondary Cell groups).

As a subsidiary embodiment of the sub-embodiment, the maintaining base station of the primary cell includes a Secondary Node (SN).

As one embodiment, the first cell includes a secondary cell.

As one embodiment, the first cell does not include a secondary cell.

As an embodiment, the first cell is a cell in an MCG.

As one embodiment, the second cell comprises a serving cell.

As one embodiment, the second cell includes a special cell.

As one embodiment, the second cell includes a secondary cell.

As an embodiment, the second cell does not include a secondary cell.

As an embodiment, the second cell is a cell in an SCG.

As one embodiment, the first cell includes an MCG and the second cell includes an SCG.

As one embodiment, the first cell includes a PCell and the second cell includes a PSCell.

As one embodiment, the first cell includes an SCG and the second cell includes an MCG.

As one embodiment, the first cell includes a PSCell and the second cell includes a PCell.

As an embodiment, the first cell and the second cell are both serving cells of the first node.

As an embodiment, the first node maintains a connection with the first cell and the second cell through a dual connection.

As one embodiment, the first state is for the second cell.

As an embodiment, the first state is for a cell group in which the second cell is located, the cell group comprising an SCG or an MCG.

For one embodiment, the first state includes a sleep (dormant) state.

For one embodiment, the first state includes a Deep sleep (Deep sleep) state.

For one embodiment, the first state includes a DRX (Discontinuous Reception) state.

For one embodiment, the first state comprises a deactivated state.

For one embodiment, the first state comprises an inactive state.

For one embodiment, the first state comprises a suspend state.

As a sub-embodiment of this embodiment, said means to suspend includes suspend.

As a sub-embodiment of this embodiment, the meaning of Suspend includes Suspend.

For one embodiment, the first state includes an SCG deactivation state.

For one embodiment, the first state comprises an SCG activation state.

For one embodiment, the first state includes an SCG dormant state.

For one embodiment, the first state comprises an SCG suspended state.

For one embodiment, the first state comprises an RRC _ INACTIVE state.

As an embodiment, when a second cell is in a first state, the first node does not monitor a PDCCH for the second cell.

As an embodiment, when a second cell is in a first state, the first node performs RLM (Radio Link Monitor) measurement for the second cell.

As an embodiment, the first state includes that no RLF occurs in the second cell.

For one embodiment, the first status includes that the SCG has not detected RLF.

For one embodiment, the first state includes that no synchronization reconfiguration failure of the SCG has occurred.

For one embodiment, the first state includes no configuration failure of the SCG.

As an embodiment, the first state includes that the SCG has not occurred with an integrity check failure indication of the lower layer with respect to SRB3 (signaling Radio Bearer 3).

As an embodiment, the first state belongs to a CM _ CONNECTED state.

As an embodiment, the first cell belongs to an RRC CONNECTED state (RRC _ CONNECTED).

As an embodiment, when the second cell is in the first state, the first cell is in an RRC CONNECTED state (RRC _ CONNECTED).

As an embodiment, when the second cell of the first node is in the first state, the behavior of the first node comprises several first-class behaviors.

As a sub-embodiment of this embodiment, the first type of behavior comprises not monitoring a PDCCH for the second cell.

As a sub-embodiment of this embodiment, the first type of behavior includes not performing uplink transmission for the second cell.

As a sub-embodiment of this embodiment, the first type of behavior comprises not performing CSI measurements for the second cell.

As a sub-embodiment of this embodiment, the first type of behavior includes not reporting CSI of the second cell.

As a sub-embodiment of this embodiment, the first type of behavior comprises reserving RRC configuration for the second cell.

As a sub-embodiment of this embodiment, the first type of behavior comprises performing RLM measurements for the second cell.

As a sub-embodiment of this embodiment, the first type of behavior comprises performing CSI measurements for the second cell.

As a sub-embodiment of this embodiment, the first type of behavior includes performing RRM (Radio Resource Management) measurements for the second cell.

As a sub-embodiment of this embodiment, the first type of behavior comprises suspending the SRB for the second cell.

As a sub-embodiment of this embodiment, the first type of behavior includes suspending a DRB (Data Radio Bearer) for the second cell.

As a sub-embodiment of this embodiment, the first type of behavior comprises continuing Beam Management (BM) for the second cell.

As a sub-embodiment of this embodiment, the first type of behavior comprises not performing random access in the second cell.

As a sub-embodiment of this embodiment, the first type of behavior includes that random access may be performed at the second cell.

As a sub-embodiment of this embodiment, the first type of behavior includes not sending SRS (Sounding Reference Signal) in the second cell.

As a sub-embodiment of this embodiment, the first type of behavior comprises not transmitting UL-sch (uplink Shared channel) in the second cell.

As a sub-embodiment of this embodiment, the first behavior includes not transmitting a PUCCH (Physical Uplink Control Channel) in the second cell.

As a sub-embodiment of this embodiment, the number of first-type behaviors includes T1 first-type behaviors, and T1 is a positive integer.

As a sub-embodiment of this embodiment, the plurality of first-type behaviors includes all of the first-type behaviors in this application.

As a sub-embodiment of this embodiment, the plurality of first-type behaviors includes some of the first-type behaviors in this application.

As an embodiment, the first node performs channel measurements on the second cell when the second cell is in the first state.

As a sub-embodiment of this embodiment, the channel measurements include RSRP (Reference Signal Received Power) measurements.

As a sub-embodiment of this embodiment, the channel measurements include RSRQ (Reference Signal Received Quality) measurements.

As a sub-embodiment of this embodiment, the channel measurement includes SINR (Signal to Interference plus Noise Ratio) measurement.

As a sub-embodiment of this embodiment, the Channel measurement includes CSI (Channel State Information) measurement.

As a sub-embodiment of this embodiment, the channel measurement includes a downlink synchronization measurement.

As one embodiment, the phrase, in response to determining that the first cell has failed the wireless connection, includes: when the radio connection failure occurs in the first cell.

As one embodiment, the phrase, in response to determining that the first cell has failed the wireless connection, includes: as a next act of determining that the radio connection failure occurred with the first cell.

As one embodiment, the phrase, in response to determining that the first cell has failed the wireless connection, includes: as feedback to determine that the radio connection failure occurred with the first cell.

As one embodiment, the act of determining that the second cell enters the third state comprises: transitioning the second cell from the first state to the third state.

As one embodiment, the act of determining that the second cell enters the third state comprises: and judging that the second cell meets the condition that the second cell enters the third state.

As one embodiment, the third state is for the second cell.

As an embodiment, the third state is for a group of cells in which the second cell is located.

For one embodiment, the third state includes normal PSCell operation.

As one embodiment, the third state includes a connected state.

For one embodiment, the third state comprises an active state.

As an embodiment, the third state is not a DRX state.

For one embodiment, the third state comprises an active state.

As one embodiment, the third state is not a suspended state.

As an embodiment, when the second cell is in the third state, the first node transmits an SRS in the second cell.

As an embodiment, when the second cell is in the third state, the first node reports CSI for the second cell.

As an embodiment, when the second cell is in the third state, the first node monitors a PDCCH in the second cell.

As an embodiment, when the second cell is in the third state, the first node monitors a PDCCH for the second cell.

As an embodiment, when the second cell is in the third state, the first node transmits a PUCCH in the second cell if the PUCCH for the second cell is configured.

As an embodiment, the third state includes that all SRBs and all DRBs of the second cell are not suspended.

For one embodiment, the third state includes that the SRB of the second cell is available.

As an embodiment, the third state includes that the SRB of the second cell is established.

For one embodiment, the third state includes that the SRB of the second cell is restored.

As an embodiment, the third state includes that DRBs of the second cell are restored.

As one embodiment, the third state includes that PSCell Change (Change) is not running (ingoing).

For one embodiment, the third state includes that the timer T304 of the second cell is not running.

As an embodiment, the third state includes that the timer T307 of the second cell is not running.

For one embodiment, the third status includes that the SCG has not detected RLF.

For one embodiment, the third status includes that no synchronization reconfiguration failure of the SCG has occurred.

For one embodiment, the third state includes no configuration failure of the SCG.

For one embodiment, the third state includes an integrity check failure indication that the SCG has not occurred at a lower level with respect to SRB 3.

As one embodiment, the third state includes that a PSCell change is being performed.

As one embodiment, the phrase the first message used for wireless connection recovery includes: the first message is used to initiate the wireless connection recovery.

As one embodiment, the phrase the first message used for wireless connection recovery includes: the first message is used to determine to perform the radio connection recovery procedure.

As one embodiment, the phrase the first message used for wireless connection recovery includes: transmitting the first message when it is determined to perform the wireless connection recovery.

As one embodiment, the wireless connection recovery comprises CHO.

As one embodiment, the wireless connection restoration includes restoring the MCG link through the SCG.

As one embodiment, the wireless connection restoration includes an MCG Failure Information procedure.

As one embodiment, the radio connection recovery includes recovering an RRC connection of the MCG.

As an embodiment, the recipient of the second message comprises a maintaining base station of the second cell.

For one embodiment, the first message is transmitted over an air interface.

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

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

As one embodiment, the first message includes higher layer signaling.

For one embodiment, the first message includes all or part of higher layer signaling.

For one embodiment, the first message comprises an RRC message.

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

As an embodiment, the first message includes all or part of a field (Filed) in an IE of an RRC message.

As an embodiment, the first message includes an Uplink (UL) signaling.

For one embodiment, the signaling radio bearer of the first message includes SRB 1.

For one embodiment, the signaling radio bearer of the first message includes SRB 3.

As an embodiment, the logical Channel carrying the first message includes a DCCH (Dedicated Control Channel).

For one embodiment, the first message comprises an MCGFailureInformation message.

For one embodiment, the first message comprises a FailureInformation2 message.

As one embodiment, the first message comprises an MCGFailureInformationEUTRA message.

For one embodiment, the first message comprises an MCGFailureInformationNR message.

For one embodiment, the first message comprises a SCGFailureInformation message.

For one embodiment, the first message comprises a SCGFailureInformationNR message.

As one embodiment, the first message includes an SCGFailureInformationEUTRA message.

As one embodiment, the first message includes a SidelinkUEInformation message.

As one embodiment, the first message comprises a sildelinkueinformationnr message.

As one embodiment, the first message comprises a sildelinkueinformationeutra message.

For one embodiment, the first message comprises a FailureInformation message.

As one embodiment, the first message comprises a ULInformationTransferMRDC message.

As one embodiment, the first message includes a measurement report.

As an embodiment, the first message comprises a ULInformationTransferMRDC message comprising an MCGFailureInformation message.

For one embodiment, the first message comprises an MCGFailureInformation message that is transmitted via SRB 1.

As an embodiment, the first message comprises a ULInformationTransferMRDC message, which is transmitted through SRB 3.

As an embodiment, the first message is sent after the act of determining that the second cell enters the third state.

As an embodiment, the first message is sent during the course of the action determining that the second cell enters the third state.

As one embodiment, the first message is transmitted on the second cell.

As an embodiment, the first message is sent in one cell in an SCG, the SCG comprising the second cell.

As one embodiment, the second state is for the second cell.

For one embodiment, the second state includes RLF.

For one embodiment, the second state includes an SCG suspend state.

As an embodiment, the second state includes the second cell failing in the radio connection.

As an embodiment, the second state comprises that a group of cells in which the second cell is located is suspended.

As an embodiment, the second status comprises a synchronization reconfiguration with sync failure of a cell group in which the second cell is located.

As one embodiment, the second state includes a cell group Change (Change) failure in which the second cell is located.

As an embodiment, the second state includes a cell group configuration failure in which the second cell is located.

For one embodiment, the second state includes receipt of an integrity check failure indication for SRB3 at a cell group lower layer where the second cell is located.

As one embodiment, the second state includes the second cell performing a change of PSCell.

As an example, in the second state, all srbs(s) and drbs(s) of the second cell are suspended (Suspend).

As an embodiment, in the second state, the MAC of the second cell is reset.

As an embodiment, in the second state, the timer T304 in the second cell is stopped.

As an embodiment, in said second state, the CPC Conditional reconfiguration evaluation is stopped if CPC (Conditional PSCell Change ) is configured.

As an embodiment, the first node does not perform the channel measurement on the second cell when the second cell is in the second state.

As one embodiment, the phrase that the second message is used for wireless connection re-establishment includes: the second message is used to request an RRC Connection (Connection) reestablishment (re-establishment).

As one embodiment, the phrase that the second message is used for wireless connection re-establishment includes: the second signal is used to initiate a radio connection re-establishment.

As one embodiment, the phrase that the second message is used for wireless connection re-establishment includes: the second message is sent during the connection re-establishment procedure.

As one embodiment, the phrase that the second message is used for wireless connection re-establishment includes: transmitting the second message when it is determined that the radio connection re-establishment is performed.

For one embodiment, the recipient of the second message comprises a first base station.

As a sub-embodiment of this embodiment, the first node performs Cell Selection (Cell Selection) to determine the first base station.

As a sub-embodiment of this embodiment, the first base station is the same as the maintaining base station of the first cell.

As a sub-embodiment of this embodiment, the first base station is different from the maintaining base station of the first cell.

As a sub-embodiment of this embodiment, the first base station is the same as the maintaining base station of the second cell.

As a sub-embodiment of this embodiment, the first base station is different from the maintaining base station of the second 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.

As an embodiment, the second message includes an Uplink (UL) signaling.

For one embodiment, the signaling radio bearer of the second message includes SRB 0.

As an embodiment, the logical Channel carrying the second message includes a Common Control Channel (CCCH).

For one embodiment, the second message comprises a rrcreestablishrequest message.

For one embodiment, the second message comprises an RRCConnectionReestablishmentRequest message.

As one embodiment, the phrase the first node not monitoring control signaling on the second cell includes: the first node does not monitor the control signaling for the second cell.

As one embodiment, the phrase the first node not monitoring control signaling on the second cell includes: and the first node does not monitor the control signaling sent by the second cell.

As one embodiment, the phrase the first node monitoring the control signaling on the second cell includes: the first node monitors the control signaling for the second cell.

As one embodiment, the phrase the first node monitoring the control signaling on the second cell includes: and the first node monitors the control signaling sent by the second cell.

As an embodiment, the monitoring control signaling includes: the control signaling is monitored (Monitor).

As an embodiment, the monitoring control signaling includes: and detecting whether the control signaling exists on a channel occupied by the control signaling.

As an embodiment, the monitoring includes a CRC (Cyclic Redundancy Check) Check.

As one embodiment, the monitoring includes blind detection.

As one embodiment, the monitoring includes coherent detection of the signature sequence.

As one embodiment, the control signaling includes DCI.

As one embodiment, the control signaling includes UCI.

As one embodiment, the control signaling includes PDCCH.

In one embodiment, the control signaling comprises PUCCH.

As an embodiment, the channel occupied by the control signaling includes a PDCCH.

In one embodiment, the channel occupied by the control signaling comprises a PUCCH.

As one embodiment, a radio connection failure is determined for a first cell; when the second cell is in the first state and when the first set of conditions is satisfied, in response to determining that the first cell has failed the radio connection, determining that the second cell enters a third state, and sending a first message.

For one embodiment, the first set of conditions includes M1 first type conditions, the M1 being a positive integer.

As a sub-embodiment of this embodiment, the first type of condition comprises the third signaling instructing the second cell to enter the third state from the first state.

As a sub-embodiment of this embodiment, the first type of condition comprises the third signaling indicating that the first node has the capability to transition the second cell from the first state to the third state.

As a sub-embodiment of this embodiment, the first node determines to transition the second cell from the first state to the third state.

As a sub-embodiment of this embodiment, the first type of condition includes that the second cell is in the first state.

As a sub-embodiment of this embodiment, the first type of condition includes that the first cell fails the radio connection.

As a sub-embodiment of this embodiment, the first type of condition includes that the first node is configured with split SRB 1.

As a sub-embodiment of this embodiment, the first type of condition includes that the first node is configured with an SRB 3.

As a sub-embodiment of this embodiment, the first type of condition includes that the MCG is not suspended (Suspend).

As a sub-embodiment of this embodiment, the first type of condition includes that the SCG is not suspended.

As a sub-embodiment of this embodiment, the first type of condition includes that a first timer is configured and the first timer is not running.

As an additional embodiment of this sub-embodiment, the first timer comprises T316.

As an additional embodiment of this sub-embodiment, the first timer comprises T310.

As a sub-embodiment of this embodiment, the M1 first-class conditions are all satisfied for determining that the first set of conditions is satisfied.

As a sub-implementation of this embodiment, M2 of the M1 first-type conditions being satisfied are used to determine that the first set of conditions is satisfied, the M2 being a positive integer no greater than M1.

As an embodiment, the first set of conditions being met includes that the first node may perform an MCG Failure Information procedure and the second cell is in the first state.

As one embodiment, a radio connection failure is determined for a first cell; when the second cell is in the third state and when the first set of conditions is satisfied, sending a first message in response to determining that the radio connection failure occurred with the first cell.

As one embodiment, a radio connection failure is determined for a first cell; sending a second message in response to determining that the first cell failed the radio connection when the second cell is in the second state and when the first set of conditions is not satisfied.

As a sub-embodiment of this embodiment, the first set of conditions not being satisfied includes the SCG being detected as an RLF.

As a sub-embodiment of this embodiment, the first set of conditions not being satisfied includes an SCG failing to synchronize reconfiguration.

As a sub-embodiment of this embodiment, the first set of conditions not being satisfied includes an SCG failing to configure.

As a sub-embodiment of this embodiment, the first set of conditions not being satisfied includes an SCG occurrence low-level integrity check failure indication with respect to SRB 3.

As a sub-embodiment of this embodiment, the first set of conditions not being satisfied includes that a PSCell change is being performed.

As one embodiment, a radio connection failure is determined for a first cell; and when the second cell is in the second state, sending a second message as a response for determining that the radio connection failure occurs in the first cell.

As an embodiment, the second cell in the given state means: the second cell is in a given state for the first node; the given state is the first state, or the second state, or the third state.

As an embodiment, the second cell in the given state means: the second cell of the first node is in the given state; the given state is the first state, or the second state, or the third state.

As an embodiment, the second cell in the given state means: the state of the second cell belongs to the given state; the given state is the first state, or the second state, or the third state.

As an embodiment, the second cell in the given state means: the first node performing the behavior of the given state for the second cell; the given state is the first state, or the second state, or the third state.

As an embodiment, the second cell in the given state means: the first node's behavior in the first cell is in a given state; the given state is the first state, or the second state, or the third state.

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 transmissions of a Terrestrial Network (TN).

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

As an embodiment, the UE201 is an aircraft.

As an embodiment, the UE201 is a vehicle-mounted terminal.

As an embodiment, the UE201 is a relay.

As an embodiment, the UE201 is a ship.

As an embodiment, the UE201 is an internet of things terminal.

As an embodiment, the UE201 is a terminal of an industrial internet of things.

As an embodiment, the UE201 is a device supporting low-latency high-reliability transmission.

As an embodiment, the gNB203 corresponds to the second type 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 an example, the gNB203 is a macro Cellular (Marco Cellular) base station.

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

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

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

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

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

As an embodiment, the gNB203 is a satellite device.

As an embodiment, the gNB203 is a UE (user equipment).

As an embodiment, the gNB203 is a gateway.

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 type of node in this application.

As an embodiment, the first message 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 first radio signal in this application is generated in the RRC 306.

As an embodiment, the first wireless signal in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first wireless signal in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the second wireless signal in this application is generated in the RRC 306.

As an embodiment, the second wireless signal in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the second wireless signal in the present application is generated in the PHY301 or the PHY 351.

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

As an embodiment, the first signaling in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first signaling in the present application is generated in the PHY301 or the PHY 351.

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.

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: determining that a radio connection failure occurs in a first cell; when the second cell is in the first state, determining that the second cell enters a third state and sending a first message as a response to determining that the first cell has the radio connection failure; when the second cell is in the second state, sending a second message as a response for determining that the radio connection failure occurs in the first cell; when the second cell is in a third state, sending the first message as a response to determining that the radio connection failure occurs in the first cell; wherein the first message is used for wireless connection recovery; the second message is used for wireless connection re-establishment; when the second cell is in the first state, the first node does not monitor control signaling on the second cell; the first node monitors the control signaling on the second cell when the second cell is in the third state.

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: determining that a radio connection failure occurs in a first cell; when the second cell is in the first state, determining that the second cell enters a third state and sending a first message as a response to determining that the first cell has the radio connection failure; when the second cell is in the second state, sending a second message as a response for determining that the radio connection failure occurs in the first cell; when the second cell is in a third state, sending the first message as a response to determining that the radio connection failure occurs in the first cell; wherein the first message is used for wireless connection recovery; the second message is used for wireless connection re-establishment; when the second cell is in the first state, the first node does not monitor control signaling on the second cell; the first node monitors the control signaling on the second cell when the second cell is in the third state.

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: determining that the second cell enters a third state and receiving a first message in response to the first cell being determined to have a radio connection failure when the second cell is in the first state; receiving the first message in response to the first cell being determined to have a radio connection failure when the second cell is in a third state; wherein the first message is used for wireless connection recovery; when the second cell is in the first state, the first node does not monitor control signaling on the second cell; the first node monitors the control signaling on the second cell when the second cell is in the third state.

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: receiving a second message in response to the first cell being determined to have a radio connection failure when the second cell is in the second state; the second message is used for wireless connection re-establishment.

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: determining that the second cell enters a third state and receiving a first message in response to the first cell being determined to have a radio connection failure when the second cell is in the first state; receiving the first message in response to the first cell being determined to have a radio connection failure when the second cell is in a third state; wherein the first message is used for wireless connection recovery; when the second cell is in the first state, the first node does not monitor control signaling on the second cell; the first node monitors the control signaling on the second cell when the second cell is in the third state.

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: 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: receiving a second message in response to the first cell being determined to have a radio connection failure when the second cell is in the second state; the second message is used for wireless connection re-establishment.

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

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

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

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

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.

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

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

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

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

As a sub-embodiment of this embodiment, the second type of node comprises a maintaining base station of the first cell.

As a sub-embodiment of this embodiment, the second type of node comprises a maintaining base station of the second cell.

As a sub-embodiment of this embodiment, the second type node comprises a recipient of the first message.

As a sub-embodiment of this embodiment, the second type node comprises a recipient of the second message.

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

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

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

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

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

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

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

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

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

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

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

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

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. 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 U01Receiving a first signaling in step S5101; step S5102, determining that a radio connection failure occurs in the first cell; the second cell is in the first state in step S5103; when the second cell is in the first state, determining that the second cell enters a third state as a response to determining that the first cell has the radio connection failure; in step S5104, a first wireless signal is transmitted, in step S5105, a second wireless signal is received, in step S5106, a radio bearer with the second cell is restored, in step S5107, the second cell is in a third state, and in step S5108, a first message is transmitted.

For theSecond node N02The first signaling is transmitted in step S5201.

For theThird node N03The first signaling is transmitted in step S5301, the first wireless signal is received in step S5302, the second wireless signal is transmitted in step S5303, and the first message is received in step S5304.

In embodiment 5, the first message is used for wireless connection recovery; when the second cell is in the first state, the first node does not monitor control signaling on the second cell; the first node monitoring the control signaling on the second cell when the second cell is in the third state; the first radio signal is used to trigger the second cell to enter a third state, or the second radio signal is used to trigger the second cell to enter a third state; the first signaling is used to instruct the second cell to enter the first state.

As one embodiment, the act of determining that the second cell entered the third state includes restoring a radio bearer with the second cell.

As one embodiment, the act of determining that the second cell enters the third state comprises: a first wireless signal is transmitted.

As one embodiment, the act of determining that the second cell enters the third state comprises: a second wireless signal is received.

As an example, the second node N02 is a node of the second type in this application.

As an embodiment, the third node N03 is a node of the second type in this application.

As one embodiment, the phrase the first signaling is used to indicate that the second cell enters the first state includes: determining to transition the second cell to the first state when the first node receives the first signaling and the first signaling comprises a first indication.

As a sub-embodiment of this embodiment, the first signaling is used to carry the first indication.

As a sub-embodiment of this embodiment, the first signaling carries the first indication.

As a sub-embodiment of this embodiment, the first indication comprises 1 bit.

As a sub-embodiment of this embodiment, the first indication comprises K1 bits, the K1 being an integer greater than 1.

As a sub-embodiment of this embodiment, the first indication is a field in the first signaling.

As a sub-embodiment of this embodiment, the first indication is an IE in the first signaling.

As a sub-embodiment of this embodiment, the first indication comprises the first bit map in the present application.

As one embodiment, the phrase the first signaling is used to indicate that the second cell enters the first state includes: the first signaling is used to determine to transition the second cell to the first state.

As one embodiment, the phrase the first signaling is used to indicate that the second cell enters the first state includes: the first signaling indicates the second cell of the first node to enter a dormant state.

As an embodiment, the sender of the first signaling comprises a maintaining base station of the first cell.

As an embodiment, the sender of the first signaling comprises a maintaining base station of the second cell.

As an embodiment, the first signaling is all or part of one RRC signaling.

As an embodiment, the first signaling is all or part of one or more ies(s) in one RRC signaling.

As an embodiment, the first signaling is all or part of one or more fields in an IE in one RRC signaling.

As an embodiment, the first signaling comprises a rrcreeconfiguration message.

As an embodiment, the first signaling comprises an RRCConnectionReconfiguration message.

For one embodiment, the signaling radio bearer for the first signaling comprises SRB 1.

For one embodiment, the signaling radio bearer for the first signaling comprises SRB 3.

As one embodiment, the first signaling includes MAC layer signaling.

As one embodiment, the first signaling includes a MAC CE.

As an embodiment, the first signaling includes a MAC Subheader (Subheader).

As one embodiment, the first signaling includes physical layer signaling.

As one embodiment, the first signaling includes DCI.

As one embodiment, the phrase that the first wireless signal is used to trigger the second cell to enter the third state includes: the first wireless signal is transmitted on a predefined resource and is used to trigger the second cell to enter a third state.

As one embodiment, the phrase that the first wireless signal is used to trigger the second cell to enter the third state includes: transmitting the first wireless signal when the first node recovers the radio bearer of the second cell.

As one embodiment, the phrase that the first wireless signal is used to trigger the second cell to enter the third state includes: transmitting the first wireless signal when the first node transitions the second cell to the third state.

As one embodiment, the phrase that the first wireless signal is used to trigger the second cell to enter the third state includes: the first wireless signal carrying the first field of the present application is used to apply for transitioning the second cell to the third state.

As a sub-embodiment of this embodiment, the first domain instructs the second cell to enter a third state.

As one embodiment, the recipient of the first wireless signal comprises a maintaining base station of the second cell.

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

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

As an embodiment, the first wireless signal is transmitted through a uu port.

As an embodiment, the first wireless signal includes an Uplink (UL) signal.

For one embodiment, the first wireless signal includes a Baseband (Baseband) signal.

As one embodiment, the first wireless Signal includes all or part of a Physical Layer (Signal).

As one embodiment, the first wireless signal includes all or part of MAC signaling.

As an embodiment, the first wireless signal includes all or part of a field of a MAC CE (Control Element).

For one embodiment, the first wireless signal includes all or a portion of a MAC header.

For one embodiment, the first wireless signal includes all or a part of a field of one MAC PDU.

As an embodiment, the first Radio signal includes a C-RNTI (Cell Radio Network Temporary Identifier) MAC CE.

For one embodiment, the first wireless signal includes a CCCH SDU.

For one embodiment, the first wireless signal includes all or part of higher layer signaling.

As one embodiment, the first wireless signal includes all or part of higher layer signaling.

As an embodiment, the first wireless signal includes an RRC message.

In one embodiment, the first radio signal includes one or more ies(s) in an RRC message.

As an embodiment, the first radio signal includes one or more fields in an IE in an RRC message.

As one embodiment, the first wireless signal is used to initiate a random access procedure.

As one embodiment, the first wireless signal is used to initiate a first type of random access.

As a sub-embodiment of this embodiment, the first type of random access comprises a 4-step RA.

As a sub-embodiment of this embodiment, the first type of random access comprises contention-based random access.

As a sub-embodiment of this embodiment, the first type of random access includes non-contention based random access.

As a sub-embodiment of this embodiment, the first type of random access includes message 1, message 2, message 3, and message 4.

As an additional embodiment of this sub-embodiment, the first wireless signal comprises message 1.

As an additional embodiment of this sub-embodiment, the first wireless signal comprises message 3.

As an additional embodiment of this sub-embodiment, said second signal comprises message 2.

As an additional embodiment of this sub-embodiment, said second signal comprises a message 4.

As a sub-embodiment of this embodiment, the first type of random access includes message 1 and message 2.

As an embodiment, the first radio signal is used to initiate a second type of random access.

As a sub-embodiment of this embodiment, the second type of random access comprises a 2-step RA.

As a sub-embodiment of this embodiment, the second type of random access comprises contention-based random access.

As a sub-embodiment of this embodiment, the second type of random access includes non-contention based random access.

As a sub-embodiment of this embodiment, the second type of random access includes message a and message B.

As an additional embodiment of this sub-embodiment, the first wireless signal comprises message a.

As an additional embodiment of this sub-embodiment, the second signal comprises a message B.

As an additional embodiment of this sub-embodiment, the message a includes all or part of the message 1 in the present application.

As an additional embodiment of this sub-embodiment, the message a comprises all or part of the message 3 in the present application.

As an additional embodiment of this sub-embodiment, the message B comprises all or part of the message 2 in the present application.

As an additional embodiment of this sub-embodiment, the message B comprises all or part of the message 4 in the present application.

As an embodiment, the first wireless signal comprises all or part of message 1.

As a sub-embodiment of this embodiment, the message 1 includes a Preamble Sequence (Sequence).

As a sub-embodiment of this embodiment, the message 1 comprises a bit string.

As a sub-embodiment of this embodiment, the message 1 comprises a Sequence (Sequence).

As a sub-embodiment of this embodiment, the message 1 comprises a ZC sequence.

As a sub-embodiment of this embodiment, the message 1 comprises a Gold sequence.

As a sub-embodiment of this embodiment, the message 1 includes a Preamble.

As a sub-embodiment of this embodiment, the message 1 includes a PRACH signal.

As a sub-embodiment of this embodiment, the message 1 comprises an NPRACH signal.

As an embodiment, the first wireless signal comprises all or part of message 3.

As a sub-embodiment of this embodiment, the message 3 includes PUSCH.

As a sub-embodiment of this embodiment, the message 3 comprises a Payload (Payload).

As a sub-embodiment of this embodiment, the message 3 includes MAC information.

As a sub-embodiment of this embodiment, the message 3 includes RRC information.

As a sub-embodiment of this embodiment, the message 3 comprises the RRCResumeRequest1 message.

As a sub-embodiment of this embodiment, the message 3 comprises a RRCResumeRequest message.

As a sub-embodiment of this embodiment, the message 3 comprises an rrcconnectionresumerrequest message.

As a sub-embodiment of this embodiment, the message 3 includes a UE identifier.

As a sub-embodiment of this embodiment, the message 3 comprises a C-RNTI.

As a sub-embodiment of this embodiment, the message 3 includes a BSR (Buffer Status Report).

As a sub-embodiment of this embodiment, the message 3 comprises a Resume ID.

As a sub-embodiment of this embodiment, the message 3 comprises an I-RNTI.

As a sub-embodiment of this embodiment, the message 3 comprises an indicator of the amount of data.

As a sub-embodiment of this embodiment, the message 3 includes a NAS UE identifier.

As one embodiment, the phrase that the first wireless signal is used to trigger the second cell to enter the third state includes: the first wireless signal

As one embodiment, the phrase that the second wireless signal is used to trigger the second cell to enter the third state includes: the second wireless signal is used to determine to transition the second cell to the third state.

As one embodiment, the phrase that the second wireless signal is used to trigger the second cell to enter the third state includes: the second wireless signal indicates that the second cell of the first node enters an active state.

As one embodiment, the phrase that the second wireless signal is used to trigger the second cell to enter the third state includes: determining to transition the second cell to the third state when the first node receives the second wireless signal and the second wireless signal includes a second indication.

As a sub-embodiment of this embodiment, the second wireless signal is used to carry the second indication.

As a sub-embodiment of this embodiment, the second wireless signal carries the second indication.

As a sub-embodiment of this embodiment, the second indication comprises 1 bit.

As a sub-embodiment of this embodiment, the second indication includes K1 bits, the K1 being an integer greater than 1.

As a sub-embodiment of this embodiment, the second indication is a field in the second wireless signal.

As a sub-embodiment of this embodiment, the second indication is an IE in the second wireless signal.

As a sub-embodiment of this embodiment, the second indication comprises the first bit map in the present application.

As one embodiment, the sender of the second wireless signal comprises a maintaining base station of the first cell.

As one embodiment, the sender of the second wireless signal comprises a maintaining base station of the second cell.

As an embodiment, the second radio signal is all or part of an RRC signaling.

As an embodiment, the second radio signal is all or part of one or more ies(s) in an RRC signaling.

As an embodiment, the second radio signal is all or part of one or more fields in an IE in an RRC signaling.

As one embodiment, the second wireless signal includes a rrcreeconfiguration message.

For one embodiment, the second wireless signal includes an RRCConnectionReconfiguration message.

For one embodiment, the second wireless signal includes a rrcreesume message.

For one embodiment, the second wireless signal includes a rrcconnectionresponse message.

For one embodiment, the signaling radio bearer for the second wireless signal includes SRB 1.

For one embodiment, the signaling radio bearer for the second wireless signal includes SRB 3.

For one embodiment, the second wireless signal includes MAC layer signaling.

For one embodiment, the second wireless signal includes a MAC CE.

For one embodiment, the second wireless signal includes a MAC Subheader (Subheader).

For one embodiment, the second wireless signal includes physical layer signaling.

As one embodiment, the second wireless signal includes DCI.

As an embodiment, the second wireless signal includes the first bit map in this application.

As an embodiment, the second radio signal includes the same RRC message as the first signaling.

As an embodiment, the second wireless signal is the same as the first signaling.

As one embodiment, the second wireless signal is different from the first signaling.

As an embodiment, the second radio signal does not include the same RRC message as the first signaling.

As one embodiment, the meaning of the recovery includes Resume.

As one embodiment, the meaning of Restore includes Restore.

For one embodiment, the Radio Bearer comprises a Radio Bearer (RB).

For one embodiment, the Radio bearer comprises an srb (signalling Radio bearer).

As a sub-embodiment of this embodiment, the SRB is used for transmitting control signaling.

As a sub-embodiment of this embodiment, the SRB is used to transport RRC messages.

As a sub-embodiment of this embodiment, the SRB is used to transport NAS messages.

As a sub-embodiment of this embodiment, the SRB comprises SRB 0.

As a sub-embodiment of this embodiment, the SRB comprises SRB 1.

As a sub-embodiment of this embodiment, the SRB comprises SRB 2.

As a sub-embodiment of this embodiment, the SRB comprises SRB 3.

As a sub-embodiment of this embodiment, the SRB comprises a Split SRB.

As an adjunct embodiment of this sub-embodiment, the Split SRB is used for Dual Connectivity (DC).

As an adjunct to this sub-embodiment, the Split SRB supports transport over MCG and SCG.

As one embodiment, the radio bearer includes a DRB.

As a sub-embodiment of this embodiment, the DRB is used to transmit data.

As a sub-embodiment of this embodiment, the DRB is used to carry user plane data.

As one embodiment, the radio Bearer comprises a DAPS Bearer (Bearer).

As a sub-embodiment of this embodiment, during DAPS handover, the protocol stack carried by the DAPS is located in both the serving base station of the source cell and the serving base station of the target cell.

As a subsidiary embodiment of this sub-embodiment, said source cell comprises said first cell.

As an additional embodiment of this sub-embodiment, the serving base station of the source cell includes a source gNB.

As a subsidiary embodiment of this sub-embodiment, the serving base station of the target cell comprises a target gNB.

As a sub-embodiment of this embodiment, during DAPS handover, the DAPS carries while using the resources of the serving base station of the source cell and the serving base station of the target cell.

As an embodiment, the action recovery and the radio bearer between the second cell include: restoring the SRB with the second cell.

As an embodiment, the action recovery and the radio bearer between the second cell include: restoring the SRB1 with the second cell.

As an embodiment, the action recovery and the radio bearer between the second cell include: recovering a Split SRB1 with the second cell.

As an embodiment, the action recovery and the radio bearer between the second cell include: restoring the SRB3 with the second cell.

As an embodiment, the action recovery and the radio bearer between the second cell include: recovering the DRB with the second cell.

As one embodiment, the act of determining that the second cell enters the third state comprises: recovering a radio bearer with the second cell; transmitting a first wireless signal; wherein the first wireless signal is used to trigger the second cell to enter a third state.

As a sub-embodiment of this embodiment, when the second cell enters the third state, the radio bearer with the second cell is restored first, and then the first radio signal is transmitted.

As a sub-embodiment of this embodiment, when the second cell enters the third state, the first radio signal is sent first, and then the radio bearer with the second cell is recovered.

As one embodiment, the act of determining that the second cell enters the third state comprises: recovering a radio bearer with the second cell; transmitting the first wireless signal; receiving the second wireless signal, wherein the second wireless signal is used to trigger the second cell to enter a third state.

As a sub-embodiment of this embodiment, when the second cell enters the third state, the radio bearer with the second cell is recovered first; and then transmitting the first wireless signal and receiving the second wireless signal.

As a sub-embodiment of this embodiment, when the second cell enters the third state, the first wireless signal is first sent, and the second wireless signal is received; and then recovering the radio bearer with the second cell.

As a sub-embodiment of this embodiment, when the second cell enters the third state, the first wireless signal is first transmitted; recovering the radio bearer with the second cell; and receiving the second wireless signal.

As an embodiment, the first radio signal or the second radio signal is used to trigger the second cell to enter a third state.

As an embodiment, the first radio signal is used to trigger the second cell to enter the third state.

As an example, the sentence "the behavior determines that the second cell enters the third state comprises: transmitting a first wireless signal; "comprises: transmitting the first wireless signal is one act of the act of determining that the second cell enters a third state.

As an example, the sentence "the behavior determines that the second cell enters the third state comprises: transmitting a first wireless signal; "comprises: the behavior determines that the second cell entering the third state comprises a plurality of actions, the transmitting the first wireless signal being one of the plurality of actions.

As one embodiment, dashed box F1 is optional.

As one example, dashed box F1 exists.

As one example, dashed box F1 is not present.

As one embodiment, dashed box F2 is optional.

As one example, dashed box F2 exists.

As one example, dashed box F2 is not present.

As one embodiment, dashed box F3 is optional.

As one example, dashed box F3 exists.

As one example, dashed box F3 is not present.

As one embodiment, dashed box F4 is optional.

As one example, dashed box F4 exists.

As one example, dashed box F4 is not present.

Example 6

Embodiment 6 illustrates a wireless signal transmission flowchart according to another embodiment of the present application, as shown in fig. 6. 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, it is determined that the first cell has a radio connection failure, in step S6102, the second cell is in the second state, and in step S6103, the second message is sent.

For theFourth node N04The second message is received in step S6401.

In embodiment 6, it is determined that a radio connection failure occurs in a first cell; when the second cell is in the second state, sending a second message as a response for determining that the radio connection failure occurs in the first cell; wherein the second message is used for wireless connection re-establishment.

For one embodiment, the first node U01 includes a user device.

For one embodiment, the first node U01 is connected to both the second node N02 and the third node N03.

As an embodiment, the first cell is a cell in the second node N02.

As an embodiment, the second cell is a cell in the third node N03.

As an example, the fourth node N04 is a node of the second type in this application.

As an embodiment, the fourth node N04 is determined by Cell Selection (Cell Selection).

As an example, the fourth node N04 is determined by Cell reselection (Cell Re-selection).

As an embodiment, the fourth node N04 is determined by cell measurements.

As an embodiment, the fourth node N04 is different from the maintaining base station of the first cell and the maintaining base station of the second cell.

As an embodiment, the fourth node N04 is the same as the maintaining base station of the first cell.

As an embodiment, the fourth node N04 is the same as the maintaining base station of the second cell.

As an embodiment, the step S6101 occurs simultaneously with the step S6102.

As an embodiment, the step S6101 precedes the step S6102.

As an embodiment, the step S6101 is after the step S6102.

Example 7

Embodiment 7 illustrates a wireless signal transmission flow diagram according to yet another embodiment of the present application, as shown in fig. 7. 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 U01Determining that a radio connection failure occurs in the first cell in step S7101; the second cell is in the third state in step S7102; a first message is sent in step S7103.

For theThird node N03The first message is received in step S7301.

In embodiment 7, it is determined that a radio connection failure occurs in a first cell; when the second cell is in a third state, sending the first message as a response to determining that the radio connection failure occurs in the first cell; wherein the first message is used for wireless connection recovery; the first node monitors the control signaling on the second cell when the second cell is in the third state.

For one embodiment, the first node U01 includes a user device.

As an example, the first node U01 is connected to both the second node N02 in this application and the third node N03 in this application.

As an embodiment, the first cell is one cell in the second node N02 in this application.

As an embodiment, the second cell is a cell in the third node N03.

As an example, the step S7101 occurs simultaneously with the step S7102.

As an example, the step S7101 precedes the step S7102.

As an example, the step S7101 follows the step S7102.

Example 8

Embodiment 8 illustrates a transmission flow chart of the second signaling and the third signaling according to an embodiment of the present application, as shown in fig. 8. 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 U01Receiving a second signaling in step S8101; a third signaling is received in step S8102.

For theFifth node N05Transmitting a second signaling in step S8501; the third signaling is transmitted in step S8502.

In embodiment 8, when a first condition set is satisfied, a first timer is started; transitioning the second cell to the third state and stopping the first timer during operation of the first timer; when the first timer is expired, initiating an RRC connection reestablishment process; the second signaling comprises a first expiration value, the first expiration value being used to determine a maximum run time of a first timer; the third signaling is used to indicate whether the second cell enters the third state from the first state.

For one embodiment, the fifth node N05 includes the second node N02.

For one embodiment, the fifth node N05 includes the third node N03.

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

As an embodiment, the second signaling is sent through an antenna port.

For one embodiment, the second signaling includes a Downlink (DL) signal.

As an embodiment, the second signaling includes a Sidelink (SL) signal.

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

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

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

As an embodiment, the second signaling comprises all or part of a Field (Field) in an IE in an RRC message.

As an embodiment, the second signaling includes UE-timersanddates.

For one embodiment, the second signaling includes RLF-TimersAndContonstants.

For one embodiment, the second signaling includes SIB 1.

As an embodiment, the second signaling comprises a rrcreeconfiguration message.

As an embodiment, the second signaling comprises an RRCConnectionReconfiguration message.

For one embodiment, the phrase the second signaling including the first expiration value includes: the second signaling indicates the first expiration value.

For one embodiment, the phrase the second signaling including the first expiration value includes: the second signaling is applied to configure the first expiration value for the first timer.

For one embodiment, the phrase the second signaling including the first expiration value includes: the second signaling is used to determine the first expiration value.

For one embodiment, the phrase the second signaling including the first expiration value includes: the first outdated value is a field in the second signaling.

As one embodiment, the phrase that the first expiration value is used to determine a maximum run time of the first timer includes: the first expiration value is equal to a maximum run time of the first timer.

As one embodiment, the phrase that the first expiration value is used to determine a maximum run time of the first timer includes: the first timer expires when the running time of the first timer reaches the first expiration value.

As one embodiment, the phrase that the first expiration value is used to determine a maximum run time of the first timer includes: and when the running time of the first timer reaches the first expiration value, the first timer does not continue to count time.

As one embodiment, the action initiating the first timer includes: the first timer starts to time.

As one embodiment, the action initiating the first timer includes: the first timer starts to run.

As one embodiment, the action stopping the first timer includes: the first timer stops counting time.

As one embodiment, the action stopping the first timer includes: the first timer does not continue to run.

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

As an embodiment, the third signaling is sent through an antenna port.

For one embodiment, the third signaling includes a Downlink (DL) signal.

As an embodiment, the third signaling includes a Sidelink (SL) signal.

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

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

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

As an embodiment, the third signaling comprises all or part of a Field (Field) in an IE in an RRC message.

As an embodiment, the third signaling is all or part of a field in the RRCReconfiguration message.

As an embodiment, the third signaling is all or part of a field in an RRCConnectionReconfiguration message.

As an embodiment, the third signaling is all or part of a field in the rrcreesume message.

As an embodiment, the third signaling is all or part of a field in an rrcconnectionresponse message.

As an embodiment, the third signaling is all or part of a field in the rrcreestablishing message.

For one embodiment, the third signaling is all or part of a field in an RRCConnectionReestablishment message.

As an embodiment, the third signaling is all or part of a field in the RRCSetup message.

As an embodiment, the third signaling is all or part of a field in the RRCConnectionSetup message.

As an embodiment, the third signaling is all or part of the fields in the SIB1 message.

As an embodiment, the third signaling is all or part of a field in a systemlnformationblocktype 1 message.

As an embodiment, the third signaling comprises attemptsgresume.

As an embodiment, the third signaling comprises attemptsgaction.

As an embodiment, the third signaling comprises attemptsgrestore.

As one embodiment, the third signaling comprises restoreSCG.

As one embodiment, the third signaling comprises resumesg.

As an embodiment, the third signaling comprises activateSCG.

As an embodiment, the third signaling and the first signaling belong to the same RRC message.

As an embodiment, the third signaling is a different IEs of the same RRC message as the first signaling.

As an embodiment, the third signaling is a different domain of the same IE of the same RRC message as the first signaling.

As an embodiment, the phrase the third signaling is used to indicate whether the second cell enters the third state from the first state comprises: whether the third signaling is present is used to indicate whether the second cell enters the third state from the first state.

As a sub-embodiment of this embodiment, the third signaling presence is used to instruct the second cell to enter the third state from the first state.

As a sub-embodiment of this embodiment, the absence of the third signaling is used to indicate that the second cell does not enter the third state from the first state.

As an embodiment, the third signaling is used to indicate whether the second cell enters the third state from the first state when the second cell is in the first state and it is determined that the first cell has a radio connection failure.

As one embodiment, the third signaling indicates whether the first node is capable of transitioning the second cell from the first state to the third state.

As an embodiment, the third signaling comprises one bit.

As an embodiment, the third signaling includes P1 bits, the P1 is a positive integer.

As an embodiment, the second cell is instructed to enter the third state from the first state when the third signaling is set to true.

As a sub-embodiment of this embodiment, the true value includes true.

As a sub-embodiment of this embodiment, the true value includes 1.

As an embodiment, when the third signaling is set to a false value, the second cell is instructed not to enter the third state from the first state.

As a sub-embodiment of this embodiment, the false value includes false.

As a sub-embodiment of this embodiment, the false value comprises 1.

As one embodiment, the transitioning the second cell to the third state includes receiving the second wireless signal.

As one embodiment, the transitioning the second cell to the third state includes resuming a radio bearer between the first node and the second cell.

As one embodiment, the act of determining that the second cell enters the third state comprises: the first timer is started.

As one embodiment, the act of determining that the second cell enters the third state comprises: the third signaling indicates that the second cell enters the third state from the first state.

As an embodiment, the sentence "start the first timer when the first set of conditions is satisfied" includes: starting the first timer when the first node determines to transition the second cell from the first state to the third state.

As one embodiment, when the first set of conditions is satisfied, the first timer is started and the first wireless signal is transmitted.

As an embodiment, the sentence "transition the second cell to the third state and stop the first timer during the operation of the first timer" includes: stopping the first timer if the second cell transitions to the second state when the running time of the first timer is not greater than the first expiration value.

As an embodiment, the sentence "transition the second cell to the third state and stop the first timer during the operation of the first timer" includes: stopping the first timer if a radio bearer between the first node and the second cell is restored during operation of the first timer.

As an embodiment, during the operation of the first timer, the first timer is stopped when the second wireless signal is received.

As an embodiment, the sentence "initiating the RRC connection reestablishment procedure when the first timer expires" includes: initiating an RRC connection reestablishment procedure when the running time of the first timer reaches the first expiration value.

As an embodiment, the sentence "initiating the RRC connection reestablishment procedure when the first timer expires" includes: performing an RRC connection re-establishment procedure when the operation time of the first timer reaches the first expiration value.

As an embodiment, the RRC IDLE state is entered when the first timer expires.

As an embodiment, a cell reselection procedure is performed when the first timer expires.

As one embodiment, dashed box F5 is optional.

As one embodiment, dashed box F6 is optional.

As one embodiment, one of the dashed box F5 and the dashed box F6 exists.

As one example, both dashed box F5 and dashed box F6 exist.

As an example, neither dashed box F5 nor dashed box F6 is present.

Example 9

Embodiment 9 illustrates a schematic diagram of the behavior of a first node when a second cell is in a different state according to an embodiment of the present application, as shown in fig. 9. It is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

In embodiment 9, the first node determines in step S901 that a radio connection failure occurs in a first cell; if the second cell is in the first state, entering step S902(a), then executing step S903(a), determining that the second cell enters the third state, then jumping to step S902(b), where the second cell is in the third state in step S902(b), then executing step S903(b), and sending a first message; if the second cell is in the third state, the method proceeds to step S902(b), and executes step S903(b), and sends a first message; if the second cell is in the second state, the process proceeds to step S902(c), and step S903(c) is executed to send a second message.

As an example, the step S902(a), the step S902(b), and the step S902(c) do not occur simultaneously.

As an embodiment, the step S902(a), the step S902(b), and the step S902(c) precede the step S901.

As an embodiment, the step S902(a), the step S902(b), and the step S902(c) follow the step S901.

As an embodiment, before sending the first message, if the second cell is in the first state, the step S903(a) is performed to transition the second cell to the third state.

Example 10

Embodiment 10 illustrates a schematic diagram in which a first domain is used to indicate a reason for transmitting a first wireless signal according to an embodiment of the present application, as shown in fig. 10.

In embodiment 10, the act of determining that the second cell enters the third state in this application comprises: transmitting a first wireless signal, the first wireless signal comprising a first domain; wherein the first radio signal is used to trigger the second cell to enter a third state, and the first domain is used to indicate a reason for transmitting the first radio signal.

For one embodiment, the phrase the first wireless signal comprises a first domain comprising: the first domain is one domain in the first wireless signal.

For one embodiment, the phrase the first wireless signal comprises a first domain comprising: the first field is an IE in the first wireless signal.

For one embodiment, the phrase the first wireless signal comprises a first domain comprising: the first domain is all or part of the first wireless signal.

As one embodiment, the phrase that the first domain is used to indicate a reason for transmitting a first wireless signal includes: the first wireless signal includes an RRC connection recovery request message, and the first domain indicates a reason for initiating RRC connection recovery.

As one embodiment, the phrase that the first domain is used to indicate a reason for transmitting a first wireless signal includes: the first domain indicates the second cell to transition to the third state.

As one embodiment, the phrase that the first domain is used to indicate a reason for transmitting a first wireless signal includes: the first domain instructs the second cell to transition from a dormant state to a non-dormant state.

As one embodiment, the phrase that the first domain is used to indicate a reason for transmitting a first wireless signal includes: the first domain indicates the second cell to transition the first state to the third state.

As one embodiment, the phrase that the first domain is used to indicate a reason for transmitting a first wireless signal includes: the first domain indicates that the MCG is RLF-enabled.

As one embodiment, the phrase that the first domain is used to indicate a reason for transmitting a first wireless signal includes: the first domain indicates that MCG link recovery is performed over SCG.

As one embodiment, the phrase that the first domain is used to indicate a reason for transmitting a first wireless signal includes: the first field indicates that an MCG Failure Information process is performed.

As one embodiment, the phrase that the first domain is used to indicate a reason for transmitting a first wireless signal includes: the first domain indicates activation of SCG.

For one embodiment, the first domain comprises resumecuse.

For one embodiment, the first domain comprises an estabilishment cause.

As one embodiment, the first domain includes delayTolerantAccess.

For one embodiment, the name of the first domain comprises resumecuse.

For one embodiment, the first domain includes scg-Activation.

As one embodiment, the first domain comprises a scgaactuation.

For one embodiment, the first domain includes pscell-Activation.

For one embodiment, the first domain includes pscellActivation.

For one embodiment, the first domain includes mcg-Recovery.

For one embodiment, the first domain comprises mcgFailureInformation.

For one embodiment, the first domain comprises mcg-RLF.

For one embodiment, the first domain includes emergency.

As one embodiment, the first domain comprises highprioritylaccess.

For one embodiment, the first domain comprises mt-Access.

As one embodiment, the first domain comprises a mo-Signalling.

For one embodiment, the first domain includes mo-Data.

For one embodiment, the first domain comprises a mo-VoiceCall.

As one embodiment, the first domain includes a mo-VideoCall.

As one embodiment, the first domain includes mo-SMS.

For one embodiment, the first domain includes an rn a-Update.

For one embodiment, the first domain comprises mps-prioritylaccess.

For one embodiment, the first domain includes mcs-PriorityAccess.

Example 11

Embodiment 11 illustrates a schematic diagram in which a first bit map according to an embodiment of the present application is used to indicate a status of a second cell, as shown in fig. 11. In fig. 11, each solid-line box represents one bit, the dotted-line box represents the first bit bitmap, and 1/0 represents one bit set to 1 or 0.

In embodiment 11, the first signaling includes a first bit map (Bitmap) used to indicate a state of the second cell; the first bit map includes Q1 bits, the Q1 bits respectively correspond to Q1 cells, and the second cell is one of the Q1 cells.

In embodiment 11, the second wireless signal comprises a first bit map, the first bit map being used to indicate a status of the second cell; the first bit map includes Q1 bits, the Q1 bits respectively correspond to Q1 cells, and the second cell is one of the Q1 cells.

As an embodiment, the first bit map is used to indicate that the second cell enters the first state.

As an embodiment, the first bit map is used to indicate that the second cell enters the third state.

As an embodiment, when one bit of the Q1 bits is set to 1, it indicates that one cell corresponding to the one bit is set to the first state.

As an embodiment, when one bit of the Q1 bits is set to 0, it indicates that one cell corresponding to the one bit is set to the third state.

As an embodiment, when one bit of the Q1 bits is set to 0, it indicates that one cell corresponding to the one bit is set to the first state.

As an embodiment, when one bit of the Q1 bits is set to 1, it indicates that one cell corresponding to the one bit is set to the third state.

As one example, the Q1 is equal to a non-negative integer multiple of 8.

As one example, Q1 is equal to 8.

As one example, Q1 is equal to 16.

As one example, Q1 is equal to 24.

As one example, the Q1 is equal to 32.

As an example, the Q1 cells are all associated to the same SCG.

As a sub-embodiment of this embodiment, one of the Q1 cells includes a PSCell.

As a sub-embodiment of this embodiment, one of the Q1 cells includes an SCell.

As a sub-embodiment of this embodiment, when the bit corresponding to the PSCell is set to 0, the remaining bits of the Q1 bits are set to 0.

As a sub-embodiment of this embodiment, when a PSCell is set to the first state, an SCell in the SCG is set to the first state.

As a sub-embodiment of this embodiment, when a PSCell is set to the third state, an SCell in the SCG is set to the first state or the third state.

As an example, the Q1 cells are all associated with Q1 scgs(s).

As a sub-embodiment of this embodiment, one of the Q1 cells includes a PSCell.

As a sub-embodiment of this embodiment, one of the Q1 cells includes an SCG.

As a sub-embodiment of this embodiment, the bit corresponding to Q2 of the Q1 cells is set to 0, and Q2 is a non-negative integer no greater than Q1.

Example 12

Embodiment 12 illustrates a schematic diagram in which a first node simultaneously connects with a second node and a third node according to an embodiment of the present application. In fig. 12, the first node is a user equipment, and the second node and the third node are two base station devices, respectively; two solid lines respectively represent a link between the first node and the second node and a link between the first node and the third node; the dashed line represents the link between the second node and the third node.

In embodiment 12, the first node is simultaneously connected with the second node and the third node.

As an example, the second node includes the second node N02 in this application.

As an embodiment, the second node includes the third node N03 in this application.

As an embodiment, the second node is a node of the second kind in this application.

As an embodiment, the third node is a node of the second type in this application.

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

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

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

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

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

In one embodiment, the second node and the third node are connected by an optical fiber.

As an embodiment, the second node and the third node are connected by wireless.

As an embodiment, the second node and the third node are connected by a wire.

As an embodiment, the second node and the third node are connected through a multi-hop connection.

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

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

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

For one embodiment, the first node supports MR-DC (Multi-Radio Dual Connectivity).

For one embodiment, the first node supports NR DC (NR-NR Dual Connectivity).

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

As an embodiment, the first node supports NE-DC (NR-E-UTRA Dual Connectivity).

As an embodiment, the first node supports NGEN-DC (NG-RAN E-UTRA-NR Dual Connectivity).

As one embodiment, the first node supports EN DC (E-UTRA-NR Dual Connectivity).

For one embodiment, the signaling radio bearer between the first node and the second node comprises an SRB 1.

For one embodiment, the signaling radio bearer between the first node and the second node comprises an SRB 2.

For one embodiment, the signaling radio bearer between the first node and the second node comprises an SRB 3.

For one embodiment, the signaling radio bearer between the first node and the third node comprises SRB 1.

For one embodiment, the signaling radio bearer between the first node and the third node comprises SRB 2.

For one embodiment, the signaling radio bearer between the first node and the third node comprises SRB 3.

For one embodiment, the second node comprises a primary node and the third node comprises a secondary node.

For one embodiment, the second node comprises menb (master enodeb) and the third node comprises SgNB.

As an embodiment, the second node comprises a CU (Centralized Unit) and the third node comprises a DU.

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

For one embodiment, the second node comprises a secondary node and the third node comprises a primary node.

As an embodiment, the second node comprises an sgnb (secondary enodeb), and the third node comprises a MeNB.

As an embodiment, the second node comprises a DU (Distributed Unit) and the third node comprises a CU.

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

As one embodiment, the second node comprises a maintenance base station of a PCell and the third node comprises a maintenance base station of a PSCell.

As one embodiment, the second node comprises a maintenance base station of a PSCell and the third node comprises a maintenance base station of a PCell.

Example 13

Embodiment 13 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. 13. In fig. 13, a processing arrangement 1300 in a first node comprises a first receiver 1301 and a first transmitter 1302.

The first receiver 1301, which determines that the radio connection failure occurs in the first cell;

a first transmitter 1302, when the second cell is in the first state, determining that the second cell enters a third state in response to determining that the radio connection failure occurs in the first cell, and transmitting a first message; when the second cell is in the second state, sending a second message as a response for determining that the radio connection failure occurs in the first cell; when the second cell is in a third state, sending the first message as a response to determining that the radio connection failure occurs in the first cell;

in embodiment 12, the first message is used for wireless connection recovery; the second message is used for wireless connection re-establishment; when the second cell is in the first state, the first node does not monitor control signaling on the second cell; the first node monitors the control signaling on the second cell when the second cell is in the third state.

As one embodiment, the act of determining that the second cell enters the third state comprises: the first transmitter 1302, configured to transmit a first wireless signal; wherein the first wireless signal is used to trigger the second cell to enter a third state.

As one embodiment, the act of determining that the second cell enters the third state comprises: the first receiver 1301 receives a second wireless signal; wherein the second radio signal is used to trigger the second cell to enter a third state.

As an embodiment, the first receiver 1301 receives a first signaling; wherein the first signaling is used to instruct the second cell to enter the first state.

As an embodiment, the first receiver 1301 receives a second signaling; starting a first timer when the first condition set is satisfied; transitioning the second cell to the third state and stopping the first timer during operation of the first timer; when the first timer is expired, initiating an RRC connection reestablishment process; wherein the second signaling comprises a first expiration value, the first expiration value being used to determine a maximum run time of the first timer.

As an embodiment, the first receiver 1301 receives a third signaling; wherein the third signaling is used to indicate whether the second cell enters the third state from the first state.

For one embodiment, the first receiver 1301 includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4.

For one embodiment, the first receiver 1301 includes the antenna 452, the receiver 454, the multi-antenna receiving processor 458, and the receiving processor 456 of fig. 4.

For one embodiment, the first receiver 1301 includes the antenna 452, the receiver 454, and the receiving processor 456 in fig. 4.

For one embodiment, the first transmitter 1302 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 1302 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 1302 includes the antenna 452, the transmitter 454, and the transmitting processor 468 of fig. 4.

Example 14

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

A second type receiver 1402, when the second cell is in the first state, determining that the second cell enters the third state as a response to the first cell being determined to have a radio connection failure, and receiving the first message; receiving a second message in response to the first cell being determined to have a radio connection failure when the second cell is in the second state; receiving the first message in response to the first cell being determined to have a radio connection failure when the second cell is in a third state;

in embodiment 14, the first message is used for wireless connection recovery; the second message is used for wireless connection re-establishment; when the second cell is in the first state, the first node does not monitor control signaling on the second cell; the first node monitors the control signaling on the second cell when the second cell is in the third state.

As an embodiment, the second type of node used for receiving the first message comprises a maintaining base station of the first cell.

As an embodiment, the second type of node used for receiving the first message comprises a maintaining base station of the second cell.

For one embodiment, the second type of node comprises a recipient of the second message.

As an embodiment, the recipient of the second message is determined by cell selection.

For one embodiment, the second type of node comprises a recipient of the first message.

As one embodiment, the act of determining that the second cell entered the third state includes restoring a radio bearer between a sender of the first message and the second cell.

As one embodiment, the act of determining that the second cell enters the third state comprises: the second type receiver 1402, which receives a first wireless signal; wherein the first wireless signal is used to trigger the second cell to enter a third state.

As an embodiment, the second type of node used for receiving the first wireless signal comprises a maintenance base station of the second cell.

As one embodiment, the act of determining that the second cell enters the third state comprises: the second type transmitter 1401, which transmits a second wireless signal; wherein the second radio signal is used to trigger the second cell to enter a third state.

As an embodiment, the second type of node used for transmitting the second wireless signal comprises a maintenance base station of the second cell.

As an example, the second type transmitter 1401 transmits a first signaling; wherein the first signaling is used to instruct the second cell to enter the first state.

As an embodiment, the second type of node used for sending the first signaling comprises a maintaining base station of the second cell.

As an embodiment, the second type of node used for sending the first signaling comprises a maintaining base station of the first cell.

As an example, the second type transmitter 1401 transmits a second signaling; wherein the second signaling comprises a first expiration value, the first expiration value being used to determine a maximum run time of a first timer; when the first condition set is satisfied, a first timer is started; the second cell is transitioned to the second state and the first timer is stopped during the first timer operation; when the first timer expires, an RRC connection re-establishment procedure is initiated.

As an embodiment, the second type of node used for sending the second signaling comprises a maintaining base station of the second cell.

As an embodiment, the second type of node used for sending the second signaling comprises a maintaining base station of the first cell.

As an example, the second type transmitter 1401 transmits a third signaling; wherein the third signaling is used to indicate whether the second cell enters the third state from the first state.

As an embodiment, the second type of node used for sending the third signaling comprises a maintaining base station of the second cell.

As an embodiment, the second type of node used for sending the third signaling comprises a maintaining base station of the first cell.

For one embodiment, the second type of transmitter 1401 includes the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

The second type of transmitter 1401 includes, as an example, the antenna 420, the transmitter 418, the multi-antenna transmission processor 471 and the transmission processor 416 shown in fig. 4 of the present application.

The second type of transmitter 1401 includes, as an embodiment, the antenna 420, the transmitter 418, and the transmission processor 416 shown in fig. 4 of the present application.

The second type receiver 1402 includes, for one embodiment, the antenna 420, the receiver 418, the multiple antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

For one embodiment, the second type receiver 1402 includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, and the receive processor 470 shown in fig. 4.

The second receiver 1402 includes the antenna 420, the receiver 418, and the receive processor 470 shown in fig. 4 of the present application.

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

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

Claims

1. A first node configured for wireless communication, comprising:

2. The first node of claim 1, wherein the act of determining that the second cell entered the third state comprises resuming radio bearers with the second cell.

3. The first node of claim 1 or 2, wherein the act of determining that the second cell enters the third state comprises:

the first transmitter transmits a first wireless signal;

4. The first node according to any of claims 1 to 3, wherein the act of determining that the second cell enters the third state comprises:

the first receiver receives a second wireless signal;

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

the first receiver receives a first signaling;

6. The first node according to any of claims 1 to 5, comprising:

the first receiver receives a second signaling; starting a first timer when the first condition set is satisfied; transitioning the second cell to the third state and stopping the first timer during operation of the first timer; when the first timer is expired, initiating an RRC connection reestablishment process;

7. The first node according to any of claims 1 to 6, comprising:

the first receiver receives a third signaling;

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

a second receiver which determines that the second cell enters a third state as a response to the first cell being determined to have a radio connection failure when the second cell is in the first state, and receives a first message; receiving a second message in response to the first cell being determined to have a radio connection failure when the second cell is in the second state; receiving the first message in response to the first cell being determined to have a radio connection failure when the second cell is in a third state;

wherein the first message is used for wireless connection recovery; the second message is used for wireless connection re-establishment; when the second cell is in the first state, the sender of the first message does not monitor control signaling on the second cell; the sender of the second message monitors the control signaling on the second cell while the second cell is in the third state.

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

determining that a radio connection failure occurs in a first cell;

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