CN116017332A

CN116017332A - Method and apparatus in a communication node for wireless communication

Info

Publication number: CN116017332A
Application number: CN202111236985.4A
Authority: CN
Inventors: 于巧玲; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2021-10-24
Filing date: 2021-10-24
Publication date: 2023-04-25
Anticipated expiration: 2041-10-24
Also published as: CN118741623A; CN116017332B

Abstract

A method and apparatus in a communication node for wireless communication is disclosed. The communication node receiving first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; transmitting second signaling, the second signaling being used for acknowledgement for the first signaling; in response to the first condition being met, determining whether to send third signaling on the first serving cell based on whether at least a first bearer is configured, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; the act of determining whether to send third signaling on the first serving cell based on whether at least the first bearer is configured comprises: transmitting the third signaling on the first serving cell if the first bearer is configured; and if the first bearer is not configured, not transmitting the third signaling on the first serving cell.

Description

Method and apparatus in a communication node for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus for mobility.

Background

3GPP (3 rd Generation Partnership Project, third Generation partnership project) Release 16 introduced conditional reconfiguration (Conditional Reconfiguration) including CHO (Conditional Handover ) and PSCell (Primary SCG (Secondary Cell Group ) Cell, SCG Primary Cell) Change, dual protocol stack (Dual Active Protocol Stack, DAPS) handover, shortened handover latency and CHO and DAPS could not be configured simultaneously.

Disclosure of Invention

When the trigger condition of a CHO candidate cell is met, the User Equipment (UE) starts to apply RRC (Radio Resource Control ) configuration of the CHO candidate cell, and the existing protocols do not support CHO and DAPS simultaneous configuration. Combining the advantages of CHO and DAPS, respectively, the CHO and DAPS simultaneous configuration may further optimize mobility performance, how CHO and DAPS are supported simultaneously, and existing protocols need to be enhanced.

In view of the above problems, the present application provides a solution. In the description for the above problems, a switching scenario is taken as an example; the present application is also applicable to scenarios such as Sidelink (SL) transmission and IAB (Integrated Access and Backhaul, integrated access backhaul) transmission, achieving technical effects in similar handover scenarios. Furthermore, the adoption of a unified solution for different scenarios also helps to reduce hardware complexity and cost.

As an embodiment, the term (terminality) in the present application is explained with reference to the definition of the 3GPP specification protocol TS38 series.

As an embodiment, the explanation of the terms in the present application refers to the definition of the 3GPP specification protocol TS36 series.

As an embodiment, the explanation of the terms in the present application refers to the definition of the specification protocol TS37 series of 3 GPP.

As one example, the term in the present application is 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 in any node of the present application and the features in the embodiments may be applied to any other node. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

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

receiving first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell;

transmitting second signaling, the second signaling being used for acknowledgement for the first signaling;

In response to the first condition being met, determining whether to send third signaling on the first serving cell based on whether at least a first bearer is configured, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met;

wherein the first serving cell is a source serving cell of the first node, and the first candidate cell is a target candidate cell of the first node; the first configuration comprises at least the identification of the first node in the first candidate cell and the cell identification of the first candidate cell; the act of determining whether to send third signaling on the first serving cell based on whether at least the first bearer is configured comprises:

transmitting the third signaling on the first serving cell if the first bearer is configured;

and if the first bearer is not configured, not transmitting the third signaling on the first serving cell.

As one embodiment, the problems to be solved by the present application include: how to support both condition reconfiguration and DAPS simultaneous configuration.

As one embodiment, the problems to be solved by the present application include: how to support CHO and DAPS simultaneous configuration.

As one embodiment, the features of the above method include: when a conditional reconfiguration (Conditional Reconfiguration) is performed, the UE sends the third signaling to the source base station if the first node is configured with a DAPS.

As one embodiment, the features of the above method include: when a trigger cell (triggered cell) configured with the DAPS is selected as a selected cell (selected cell) performing the conditional reconfiguration, the UE transmits the third signaling to the source base station.

As one embodiment, the features of the above method include: when a trigger cell (triggered cell) is selected as a selected cell (selected cell) for performing the conditional reconfiguration, the UE determines whether to send the third signaling to the base station according to whether the selected cell is allowed to perform the DAPS handoff.

As one embodiment, the features of the above method include: when a CHO execution condition is met, the UE determines whether to send the third signaling to the base station based on whether the candidate cell associated with the CHO execution condition is allowed to perform a DAPS handoff.

As one example, the benefits of the above method include: the base station determines that a CHO candidate cell configured with the DAPS is selected as the selected cell according to the third signaling.

As one example, the benefits of the above method include: the third signaling is used to guide the behavior of the base station.

As one example, the benefits of the above method include: the base station and the UE are prevented from understanding the dyssynchrony.

As one example, the benefits of the above method include: avoiding resource waste.

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

in response to the act of sending the third signaling, fourth signaling is received, the fourth signaling being used to acknowledge the third signaling.

As one embodiment, the features of the above method include: the third signaling needs to be acknowledged by the fourth signaling.

As one embodiment, the features of the above method include: and the reliability is ensured.

According to an aspect of the application, the third signaling is used to indicate that the first condition is met comprises: the third signaling is used to trigger a first message used to indicate PDCP SN (Sequence Number) and HFN (Hyper Frame Number, superframe Number) of a target PDCP SDU (Service Data Unit ); the target PDCP SDU is a first forwarded PDCP SDU of the first bearer.

As one embodiment, the features of the above method include: the first message is a EARLY STATUS TRANSFER message.

As one embodiment, the features of the above method include: the base station determines whether to send the first message according to whether the third signaling is received.

According to an aspect of the application, the third signaling is used to trigger release of a given set of configurations including at least one of a CA (Carrier Aggregation ) configuration, or a DC (Dual Connectivity ) configuration, or a SUL (Supplementary Uplink ) configuration, or a multi-TRP (Transmit/Receive Point) configuration, or an EHC (Ethernet Header Compression ) configuration, or a sidelink configuration.

As one embodiment, the features of the above method include: releasing the given set of configurations if it is determined to send the third signaling.

releasing the given set of configurations with the third signaling; the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling is used to indicate that the given set of configurations is released.

As one embodiment, the features of the above method include: releasing the given set of configurations is related to the third signaling.

releasing the given set of configurations in response to the act receiving fourth signaling; the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling triggers the fourth signaling, which is used to command the release of the given set of configurations.

As one embodiment, the features of the above method include: releasing the given set of configurations is related to the fourth signaling.

According to an aspect of the application, characterized in that whether a second message is sent is related to whether at least a first bearer is configured, the second message being used to indicate PDCP SN and HFN of a given PDCP SDU, which is the first forwarded PDCP SDU of the first bearer, if the second message is sent, the second signaling being used to trigger the second message; whether the phrase second message is sent in relation to whether at least a first bearer is configured includes: if the first bearer is configured, the second message is not sent; the second message is sent or not sent if the first bearer is not configured.

According to an aspect of the application, characterized in that whether a second message is sent is related to whether at least a first bearer is configured, the second message being used to indicate PDCP SN and HFN of a given PDCP SDU, which is the first forwarded PDCP SDU of the first bearer, if the second message is sent, the second signaling being used to trigger the second message; whether the phrase second message is sent in relation to whether at least a first bearer is configured includes: if the first bearer is configured, the second message is sent; the second message is sent or not sent if the first bearer is not configured.

a first data packet is received, the first data packet belonging to the first bearer, and the third signaling is used to trigger the first data packet.

performing a synchronous reconfiguration procedure in accordance with the first configuration in response to the first condition being met;

wherein if the first bearer is configured, the synchronous reconfiguration procedure includes: and establishing the same logical channel configuration in the cell group of the first candidate cell as the logical channel configuration in the cell group of the first service cell for the first bearer.

starting a first timer along with the third signaling; and stopping the first timer as a response to the act of receiving fourth signaling.

in response to the first condition being met, if the first bearer is configured, the RRC layer of the first node sends a first indication to a lower layer of the first node; the lower layer of the first node receives the first indication; the act of the lower layer of the first node receiving the first indication is used to trigger the third signaling.

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

transmitting first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell;

receiving second signaling, the second signaling being used for acknowledgement for the first signaling;

receiving a third signaling;

wherein the first condition is met and a first bearer is configured to determine that the third signaling is sent in a first serving cell, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; the first configuration comprises at least the identification of the receiver of the first signaling in the first candidate cell and the cell identification of the first candidate cell; the first serving cell is a source serving cell of a receiver of the first signaling and the first candidate cell is a target candidate cell of the receiver of the first signaling.

in response to the act of receiving the third signaling, fourth signaling is sent, the fourth signaling being used to acknowledge the third signaling.

in response to the act of receiving the third signaling, a first message is sent, the first message being used to indicate a PDCP SN and HFN of a target PDCP SDU, the target PDCP SDU being a first forwarded PDCP SDU of the first bearer.

According to an aspect of the application, the third signaling is used to trigger the release of a given set of configurations, including at least one of a CA configuration, or a DC configuration, or a SUL configuration, or a multi-TRP configuration, or an EHC configuration, or a sidelink configuration.

According to one aspect of the application, the phrase the third signaling is used to trigger the release of a given set of configurations comprises: the third signaling is used to indicate that the given set of configurations is released.

According to one aspect of the application, the phrase the third signaling is used to trigger the release of a given set of configurations comprises: the third signaling triggers the fourth signaling, which is used to command the release of the given set of configurations.

in response to receiving the second signaling, determining whether to send a second message based on whether at least the first bearer is configured;

wherein if the second message is sent, the second message is used to indicate PDCP SN and HFN of a given PDCP SDU that is the first forwarded PDCP SDU of the first bearer; the act of determining whether to send the second message based on whether at least the first bearer is configured includes:

if the first bearer is configured, not sending the second message;

and if the first bearer is not configured, sending or not sending the second message.

Sending the second message if the first bearer is configured;

and as a response of the action receiving the third signaling, sending a first data packet, wherein the first data packet belongs to the first bearing.

According to an aspect of the application, a synchronous reconfiguration procedure is performed according to the first configuration in response to the first condition being met; if the first bearer is configured, the synchronous reconfiguration procedure includes: and establishing the same logical channel configuration in the cell group of the first candidate cell as the logical channel configuration in the cell group of the first service cell for the first bearer.

sending a third message; receiving a fourth message in response to the act of sending the third message;

Wherein the third message includes an identity of the first candidate cell and a C-RNTI (Cell Radio Network Temporary Identifier, cell radio network temporary identity) of the first node in the first serving cell; the third message is used to request a conditional reconfiguration; the fourth message includes at least a portion of the first configuration.

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

receiving a first message, the first message being used to indicate PDCP SN and HFN of a target PDCP SDU, the target PDCP SDU being a first forwarded PDCP SDU of a first bearer; or, receiving a second message, the second message being used to indicate PDCP SN and HFN of a given PDCP SDU, the given PDCP SDU being a first forwarded PDCP SDU of the first bearer;

wherein the first signaling is used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; the second signaling is used to acknowledge the first signaling; the first condition is met and the first bearer is configured to determine that the third signaling is sent in the first serving cell, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; the first configuration comprises at least the identification of the sender of the third signaling in the first candidate cell and the cell identification of the first candidate cell; the first serving cell is a source serving cell of a sender of the first signaling, and the first candidate cell is a target candidate cell of the sender of the first signaling.

receiving a third message; transmitting a fourth message in response to the act of receiving the third message;

wherein the third message includes an identifier of the first candidate cell and a C-RNTI of the first node in the first serving cell; the third message is used to request a conditional reconfiguration; the fourth message includes at least a portion of the first configuration.

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

a first receiver that receives first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell;

a first transmitter that transmits second signaling, the second signaling being used for acknowledgement for the first signaling;

the first transmitter, in response to the first condition being met, determining whether to send third signaling on a first serving cell based on whether at least a first bearer is configured, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met;

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

a second transmitter that transmits first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated with a first candidate cell;

a second receiver that receives second signaling, the second signaling being used for acknowledgement for the first signaling;

the second receiver receives a third signaling;

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

a third receiver receiving a first message, the first message being used to indicate PDCP SN and HFN of a target PDCP SDU, the target PDCP SDU being a first forwarded PDCP SDU of a first bearer; or, receiving a second message, the second message being used to indicate PDCP SN and HFN of a given PDCP SDU, the given PDCP SDU being a first forwarded PDCP SDU of the first bearer;

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

supporting simultaneous configuration of DAPS and CHO, and avoiding handover failure caused by too late handover command based on network control;

supporting the simultaneous configuration of DAPS and CHO, avoiding data interruption in the CHO execution process, and reducing the data interruption time;

said third signaling is used to guide the behavior of the base station, avoiding that the base station and the UE understand out of sync;

determining to release the given set of configurations according to the third signaling, avoiding premature release of the given set of configurations;

determining to trigger data forwarding according to the third signaling, so as to avoid resource waste caused by premature data forwarding;

avoiding resource waste.

Drawings

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

fig. 1 shows a flow chart of transmission of first, second and third signaling according to an embodiment of the present application;

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

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

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

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

fig. 6 shows a wireless signaling flow diagram of whether a second message is sent in relation to whether at least a first bearer is configured according to one embodiment of the present application;

fig. 7 shows a wireless signaling flow diagram of whether a second message is sent in relation to whether at least a first bearer is configured according to another embodiment of the present application;

fig. 8 illustrates a wireless signaling flow diagram in which third signaling is used to trigger a first message according to one embodiment of the present application;

FIG. 9 illustrates a schematic diagram in which third signaling is used to trigger release of a given set of configurations, according to one embodiment of the present application;

fig. 10 illustrates a wireless signaling flow diagram in which third signaling is used to trigger release of a given set of configurations according to one embodiment of the present application;

fig. 11 illustrates a wireless signaling flow diagram in which third signaling is used to trigger release of a given set of configurations according to another embodiment of the present application;

FIG. 12 illustrates a block diagram of a processing device for use in a first node according to one embodiment of the present application;

FIG. 13 shows a block diagram of a processing apparatus for use in a second node according to one embodiment of the present application;

FIG. 14 shows a block diagram of a processing arrangement for use in a third node according to one embodiment of the present application;

FIG. 15 shows a schematic diagram of a first timer according to one embodiment of the present application;

FIG. 16 shows a schematic diagram of a first indication according to an embodiment of the present application;

fig. 17 shows a wireless signal transmission flow diagram for conditional reconfiguration preparation according to one embodiment of the present application.

Detailed Description

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

Example 1

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

In embodiment 1, a first node in the present application receives, in step 101, first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; in step 102, second signaling is sent, the second signaling being used for acknowledgement for the first signaling; in step 103, in response to the first condition being met, determining whether to send third signaling on the first serving cell based on whether at least a first bearer is configured, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; wherein the first serving cell is a source serving cell of the first node, and the first candidate cell is a target candidate cell of the first node; the first configuration comprises at least the identification of the first node in the first candidate cell and the cell identification of the first candidate cell; the act of determining whether to send third signaling on the first serving cell based on whether at least the first bearer is configured comprises: transmitting the third signaling on the first serving cell if the first bearer is configured; and if the first bearer is not configured, not transmitting the third signaling on the first serving cell.

As an embodiment, the first bearer is one DAPS bearer associated to the first candidate cell.

As an embodiment, the first bearer is one DAPS bearer for the first candidate cell.

As one embodiment, the phrase the first signaling is used to determine at least a first condition and a first configuration comprises: the first signaling indicates at least the first condition and the first configuration.

As one embodiment, the phrase the first signaling is used to determine at least a first condition and a first configuration comprises: the first signaling is used to configure at least the first signaling and the first configuration.

As one embodiment, the phrase the first signaling is used to determine at least a first condition and a first configuration comprises: at least the first condition and the first configuration are included in the first signaling.

As an embodiment, the first signaling is used to configure a conditional reconfiguration.

As an embodiment, the first signaling is used to add or modify or release a configuration of a condition reconfiguration.

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

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

As an embodiment, the sender of the first signaling includes a MN (Master Node).

As an embodiment, the sender of the first signaling includes an SN (Secondary Node).

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

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

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

As an embodiment, the first signaling comprises higher layer signaling.

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

As an embodiment, the first signaling includes a Downlink (DL) signaling.

As an embodiment, the logical channel of the first signaling comprises DCCH (Dedicated Control Channel ).

As an embodiment, the signaling radio bearer (Signalling Radio Bearer, SRB) of the first signaling is SRB1.

As an embodiment, the signaling radio bearer of the first signaling is SRB3 (Signalling Radio Bearer 3, signaling radio bearer 3).

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

As an embodiment, the first signaling includes at least one RRC IE (Information Element ).

As an embodiment, the first signaling includes at least one RRC domain (filled).

As an embodiment, the first signaling includes an RRC message, and the name of the RRC message includes an RRCConnectionReconfiguration message.

As an embodiment, the first signaling includes an RRC message, and a name of the RRC message includes an rrcrecon configuration message.

As an embodiment, the first signaling includes one RRC IE, and the name of the one RRC IE includes CellGroupConfig.

As an embodiment, the first signaling includes one RRC IE, and the name of the one RRC IE includes condreconfigtoadmodlist.

As an embodiment, the first signaling includes one RRC IE, and the name of the one RRC IE includes a configurable reconfiguration.

As an embodiment, the first signaling includes one RRC IE, and the name of the one RRC IE includes a CondReconfigId.

As an embodiment, the first signaling includes one RRC IE, and the name of the one RRC IE includes ServingCellConfigCommon.

As an embodiment, the first signaling includes an RRC domain, and the name of the RRC domain includes reconfigurationwisync.

As an embodiment, the first signaling includes one RRC domain, and the name of the one RRC domain includes condexecu-cond.

As an embodiment, the first signaling includes one RRC domain, and the name of the one RRC domain includes condrrcrecon.

As an embodiment, the first signaling includes one RRC domain, a name of the one RRC domain includes condrrcrecondonfig, the one RRC domain of the at least one RRC domain includes one RRC message, the one RRC message includes a rrcrecondonconfiguration message, the one RRC message includes one RRC domain, and a name of the one RRC domain includes a ReconfigurationWithSync domain.

As an embodiment, the first signaling comprises one RRC domain indicating one measurement identity (MeasId) which is used for determining the first condition.

As an embodiment, the first condition is associated to at least one trigger event.

As an embodiment, the first condition is associated to a triggering event.

As an embodiment, the first condition is associated to at least one measurement identity.

As an embodiment, the first condition is associated to a measurement identity.

As an embodiment, the first signaling comprises a first configuration identification (CondReconfigId).

As one embodiment, the phrase the first condition and the first configuration being associated to a first candidate cell comprises: the first condition and the first configuration are for the first candidate cell.

As one embodiment, the phrase the first condition and the first configuration being associated to a first candidate cell comprises: the first condition and the first configuration are associated to the same cond reconfigid, which is associated to the first candidate cell.

As one embodiment, the phrase that the second signaling is used to acknowledge for the first signaling includes: the second signaling is an acknowledgement message of the first signaling.

As one embodiment, the phrase that the second signaling is used to acknowledge for the first signaling includes: the first signaling triggers the second signaling.

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

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

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

As an embodiment, the second signaling comprises higher layer signaling.

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

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

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

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

As an embodiment, the signaling radio bearer of the second signaling is SRB3.

As an embodiment, the second signaling comprises at least one RRC message.

As an embodiment, the second signaling includes at least one RRC IE.

As an embodiment, the second signaling includes at least one RRC domain.

As an embodiment, the second signaling comprises an rrcrecon configuration complete message.

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

As an embodiment, the cell identity of the first candidate cell is included in the second signaling.

As an embodiment, the cell identity of the first candidate cell is not included in the second signaling.

As an embodiment, the act of determining whether to send the third signaling on the first serving cell based on whether at least the first bearer is configured comprises: determining whether to send the third signaling on the first serving cell based only on whether the first bearer is configured.

As an embodiment, the act of determining whether to send the third signaling on the first serving cell based on whether at least the first bearer is configured comprises: determining whether to send the third signaling on the first serving cell based on whether the first bearer is configured and at least one other condition.

As an embodiment, the first node determines whether the first bearer is configured according to a domain in the first signaling.

As an embodiment, the first signaling includes one RRC IE, a name of the one RRC IE includes radio bearconfig, a first field in the one RRC IE indicates an Identity of the first bearer, a second field in the one RRC IE indicates whether the first bearer is configured as a DAPS bearer, a name of the first field in the one RRC IE includes drb-Identity, and a name of the second field in the one RRC IE includes DAPS-Config.

As a sub-embodiment of this embodiment, the value of the second field in the one RRC IE being set to wire indicates that the first bearer is configured as a DAPS bearer; the value of the second field in the one RRC IE not being set to wire indicates that the first bearer is not configured as a DAPS bearer.

As a sub-embodiment of this embodiment, the second field in the one RRC IE is set to indicate that the first bearer is configured as a DAPS bearer; the second field in the one RRC IE is not set to indicate that the first bearer is not configured as a DAPS bearer.

As an embodiment, the first bearer is not released until the first signaling is received that the first condition is met.

As an embodiment, the first condition comprises a trigger event.

As an embodiment, the first condition is related to a measurement.

As an embodiment, the first condition is associated to at least one measurement identity (measId).

As an embodiment, the first condition comprises a measurement configuration.

As one embodiment, the first condition includes Event A3.

As one embodiment, the first condition includes CondEvent A3.

As an embodiment, the first condition includes that the first candidate cell is better than the first serving cell.

As an embodiment, the first condition comprises that the first candidate cell is better (offset better than) than the first serving cell on an offset basis.

As an embodiment, the first condition includes that the first candidate cell is better than (a cell than) a given threshold (threshold).

As an embodiment, the first condition comprises that the first candidate cell is better (amount of offset better than) than the first serving cell on the basis of a total amount of bias.

As an embodiment, the first condition includes the first serving cell being worse than (worse than) the first threshold and the first candidate cell being better than a second threshold (threshold).

As one embodiment, the first condition includes one entry condition including Inequality (Inequality) A3-1: mn+Ofn+Ocn-Hys > Mp+ Ofp + Ocp +off.

As a sub-example of this embodiment, the definitions of the sections 5.5.4.4 of Mn, ofn, ocn, hys, mp, ofp, ocp and Off reference TS 38.331.

As a sub-embodiment of this embodiment, the first serving cell corresponds to a SpCell and the first candidate cell corresponds to a neighbor cell (neighbouring cell).

As a sub-embodiment of this embodiment, the Ofn, the Ocn, the Ofp, and the Ocp are configured in one RRC IE, the name of which includes measObjectNR.

As a sub-embodiment of this embodiment, the Hys and the Off are configured in one RRC IE, the name of which includes ReportConfigNR.

As a sub-embodiment of this embodiment, the Mn is a measurement of the first candidate cell, and the Mn does not consider any offset (offset).

As a sub-embodiment of this embodiment, the Mp is a measurement result of the first serving cell, and the Mp does not consider any offset (offset).

As one embodiment, the first condition includes one entry condition including Inequality (Inequality) A4-1: mn+Ofn+Ocn-Hys > Thresh.

As a sub-embodiment of this embodiment, the Mn, the Ofn, the Ocn, the Hys and the Thresh refer to the definition of section 5.5.4.5 of TS 38.331.

As a sub-embodiment of this embodiment, the first candidate cell corresponds to a neighboring cell (neighbouring cell).

As a sub-embodiment of this embodiment, the Ofn and the Ocn are configured in one RRC IE, the name of which includes measObjectNR.

As a sub-embodiment of this embodiment, the Hys and Thresh are configured in one RRC IE, the name of which includes ReportConfigNR.

As one embodiment, the first condition includes one entry condition including Inequality (Inequality) A5-1: mp+Hys < Thresh1 and Inequality A5-2 (entry conditions): mn+Ofn+Ocn-Hys > Thresh2.

As a sub-embodiment of this embodiment, the Mp, the Hys, the Thresh1, the Mn, the Ofn, the Ocn, and the Thresh2 refer to the definition of section 5.5.4.6 of TS 38.331.

As a sub-embodiment of this embodiment, the Hys, thresh1 and Thresh2 are configured in one RRC IE, the name of which includes ReportConfigNR.

As an embodiment, the first candidate cell is a target serving cell of the first node.

As an embodiment, the first candidate cell is one neighbor cell (neighbouring cell) of the first serving cell.

As an embodiment, the first candidate cell is a conditional reconfiguration candidate cell.

As an embodiment, the first candidate cell is a CHO candidate cell.

As an embodiment, the first candidate cell is a conditional PSCell change (Conditional PSCell Change, CPC) candidate cell.

As an embodiment, the first serving Cell is a serving Cell of the first node, and the serving Cell is a SpCell (Special Cell) or an SCell (Secondary Cell).

As an embodiment, the first serving cell is a SpCell of the first node.

As an embodiment, the first serving cell is a PCell of the first node.

As an embodiment, the first serving cell is a PSCell of the first node.

As an embodiment, the first serving cell is one SCell of the first node.

As an embodiment, the first serving cell is a PCell and the first candidate cell is a CHO candidate cell.

As an embodiment, the first serving cell is a PSCell and the first candidate cell is a CPC candidate cell.

As an embodiment, the first serving cell is a serving cell of the first node, and the first candidate cell is a CHO candidate cell.

As an embodiment, the first serving cell is a serving cell of the first node, and the first candidate cell is a CPC candidate cell.

As an embodiment, the first configuration indicates the first condition.

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

As an embodiment, the first condition is configured in the first signaling.

As an embodiment, the first condition is configured in an RRC message other than the first signaling.

As an embodiment, the time when the first configuration is applied is not earlier than the time when the second signaling is sent.

As an embodiment, the first candidate cell is determined to be a trigger cell after the first condition is satisfied.

As one embodiment, the first candidate cell is determined to be the selected cell after the first condition is satisfied.

As one embodiment, the response to the phrase being satisfied as the first condition includes: when the first condition is satisfied.

As one embodiment, the response to the phrase being satisfied as the first condition includes: if the first condition is satisfied.

As an embodiment, the first node is configured with at least one candidate cell, the first candidate cell being one of the at least one candidate cell.

As one embodiment, the first signaling is used to determine a second condition and a second configuration, the second condition and the second configuration being associated to a second candidate cell.

As a sub-embodiment of this embodiment, the first condition is satisfied and the second condition is satisfied.

As an subsidiary embodiment of this sub-embodiment, said first node selects said first candidate cell among said first candidate cell and said second candidate cell.

As an subsidiary embodiment of this sub-embodiment, said first node enables selection of said first candidate cell based on UE.

As an subsidiary embodiment of this sub-embodiment, said first node selects said first candidate cell based on beam and beam quality.

As an adjunct to this sub-embodiment, the first node selects the first candidate cell based on whether the DAPS bearer is configured.

As a sub-embodiment of this embodiment, the first condition is satisfied and the second condition is not satisfied.

As an embodiment, the phrase that the first bearer is a DAPS bearer includes: the first bearer is a DRB (user) Data Radio Bearer configured DAPS.

As an embodiment, the phrase that the first bearer is a DAPS bearer includes: the first bearer is a DRB that supports DAPS reconfiguration.

As an embodiment, the phrase that the first bearer is a DAPS bearer includes: the first bearer is a DRB and the first bearer is configured as a DAPS bearer.

As an embodiment, the first bearer is identified by drb-Identity.

As an embodiment, the first bearer comprises an AM (Acknowledged Mode ) DRB.

As an embodiment, the first bearer comprises a UM (Unacknowledged Mode ) DRB.

As an embodiment, the first bearer is associated to an RLC-AM bearer.

As an embodiment, the first bearer is associated to an RLC-UM bearer.

As an embodiment, the first bearer is any DAPS bearer associated to the first candidate cell.

As an embodiment, for the first bearer, the PDCP entity is configured with two sets of security functions and keys and two sets of header compression protocols (header compression protocols).

As one embodiment, the first bearer is one in which a protocol stack is located at the second node and the third node to use resources of the second node and the third node during a DAPS handoff.

As an embodiment, the first bearer is one bearer in which a protocol stack is located at a maintenance base station of the first serving cell and a maintenance base station of the first candidate cell to use resources of the maintenance base station of the first serving cell and the maintenance base station of the first candidate cell during a DAPS handover.

As one embodiment, the first node is configured with at least one DAPS bearer, any of which is located at the second node and the third node to use resources of the second node and the third node during a DAPS handoff.

As one embodiment, one DAPS bearer is one in which the protocol stack is located at the source base station and the target base station to use the resources of the source base station and the target base station during a DAPS handoff.

As an embodiment, PDCP entities are associated to at least 2 UM RLM entities for one DAPS bearer.

As an embodiment, PDCP entities are associated to 2 UM RLC entities for one DAPS bearer.

As an embodiment, PDCP entities are associated to 4 UM RLC entities for one DAPS bearer.

As one embodiment, PDCP entities are associated to at least 2 AM RLC entities for one DAPS bearer.

As one embodiment, PDCP entities are associated to 2 AM RLC entities for one DAPS bearer.

As one embodiment, PDCP entities are associated to 4 AM RLC entities for one DAPS bearer.

As an embodiment, the third signaling comprises an RRC message.

As an embodiment, the third signaling is an RRC message.

As an embodiment, the third signaling includes an RRC IE.

As an embodiment, the third signaling comprises an RRC domain.

As an embodiment, the third signaling includes a uliformationtransfer message.

As an embodiment, the third signaling includes a field in the ulinfo information transfer message.

As an embodiment, the third signaling comprises a ueassistance information message.

As an embodiment, the third signaling comprises a field in a ueassistance information message.

As an embodiment, the third signaling comprises a MeasurementReport message.

As an embodiment, the third signaling comprises a field in a MeasurementReport message.

As an embodiment, the third signaling comprises a MAC layer signaling.

As an embodiment, the third signaling is a MAC layer signaling.

As an embodiment, the third signaling includes a MAC CE.

As an embodiment, the third signaling includes a MAC PDU (Protocol Data Unit ).

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

As an embodiment, the LCID (logic channel identifier, logical channel identification) field in the MAC subheader in the third signaling is set to an integer not less than 35 and not more than 46.

As an embodiment, the third signaling includes a MAC CE and a MAC subheader.

As an embodiment, the third signaling includes a MAC sub-header, and does not include a MAC CE (Control Element).

As an embodiment, the third signaling comprises a physical layer signaling.

As an embodiment, the third signaling is a physical layer signaling.

As an embodiment, the third signaling comprises a domain in a physical layer signaling.

As an embodiment, the third signaling includes one field in UCI (Uplink Control Information ).

As an embodiment, the third signaling includes a UCI.

As an embodiment, the third signaling comprises a boolean value.

As an embodiment, the third signaling comprises a non-negative integer.

As an embodiment, the third signaling comprises one bit.

As an embodiment, the third signaling comprises K1 bits, the K1 being an integer greater than 1 and not greater than 8.

As an embodiment, the third signaling comprises a string.

As an embodiment, the third signaling includes an identification of the first candidate cell.

As an embodiment, the third signaling indicates the first candidate cell identity.

As one embodiment, the phrase the third signaling is used to indicate that the first condition is satisfied includes: the third signaling display indicates the first candidate cell.

As one embodiment, the phrase the third signaling is used to indicate that the first condition is satisfied includes: the third signaling implicitly indicates the first candidate cell.

As one embodiment, the phrase the third signaling is used to indicate that the first condition is satisfied includes: the third signaling includes an identification of the first candidate cell.

As one embodiment, the phrase the third signaling is used to indicate that the first condition is satisfied includes: the third signaling includes the PCI of the first candidate cell.

As one embodiment, the phrase the third signaling is used to indicate that the first condition is satisfied includes: the third signaling includes the first configuration identifier, which is associated with the first candidate cell.

As one embodiment, the phrase the third signaling is used to indicate that the first condition is satisfied includes: the third signaling is used to indicate that the first condition associated with the first candidate cell is satisfied.

As one embodiment, the phrase the third signaling is used to indicate that the first condition is satisfied includes: the third signaling is used to indicate that the cell used for conditional reconfiguration execution is the first candidate cell.

As one embodiment, the phrase the third signaling is used to indicate that the first condition is satisfied includes: the third signaling is used to indicate that the selected cell is the first candidate cell.

As an embodiment, in response to the first condition being met, if the first bearer is configured, the RRC layer of the first node sends a first indication to a lower layer of the first node; the lower layer of the first node receives the first indication; the third signaling is sent on the first serving cell in response to the lower layer of the first node receiving the first indication as the act.

As an embodiment, the first serving cell is a source serving cell of the first node, and the first candidate cell is a target candidate cell of the first node.

As an embodiment, the phrase that the first serving cell is a serving cell of the first node includes: the ServCellIndex of the first serving cell is equal to 0.

As an embodiment, the phrase that the first serving cell is a serving cell of the first node includes: for the first node, the first serving cell is configured with a ServCellIndex.

As an embodiment, the phrase that the first serving cell is a serving cell of the first node includes: the first node uses resources of the first serving cell.

As an embodiment, the phrase that the first serving cell is a serving cell of the first node includes: the first serving cell is a source serving cell of the first node.

As an embodiment, an IE or a field in the first configuration is used to determine the identity of the first node in the first candidate cell.

As an embodiment, the first configuration indicates at least the identity of the first node in the first candidate cell and the cell identity of the first candidate cell.

As an embodiment, the first configuration includes the identification of the first node in the first candidate cell.

As an embodiment, the first configuration includes a newUE-Identity field, and a value of the newUE-Identity field indicates the Identity of the first node in the first candidate cell.

As an embodiment, the first configuration includes an RNTI-Value IE, and a Value of the RNTI-Value IE indicates the identity of the first node in the first candidate cell.

As an embodiment, the identification of the first node in the first candidate cell comprises one RNTI (Radio Network Temporary Identity).

As an embodiment, the identification of the first node in the first candidate cell is an integer not less than 0 and not more than 65535.

As an embodiment, the identification of the first node in the first candidate cell is assigned by the first candidate cell.

As an embodiment, one IE or one field in the first configuration is used to determine the cell identity of the first candidate cell.

As an embodiment, the first configuration includes the cell identity of the first candidate cell.

As an embodiment, the first configuration includes a physiocellid field, a value of which indicates the identity of the first candidate cell.

As an embodiment, the first configuration includes a physiocellid IE, a value of which indicates the cell identity of the first candidate cell.

As an embodiment, the cell identity of the first candidate cell comprises a physical cell identity (physical cell identity, PCI).

As one embodiment, the cell identity of the first candidate cell is an integer not less than 0 and not greater than 1007.

As an embodiment, the first bearer is configured to refer to: for the first candidate cell, a DAPS bearer is configured.

As an embodiment, the first bearer is configured to refer to: in response to the first condition being met, the protocol stack is located at both the second node and the third node during at least one time slot during which the first configuration is applied.

As an embodiment, the first bearer is configured to refer to: in response to the first condition being met, the protocol stack is located at both the maintaining base station of the first serving cell and the maintaining base station of the first candidate cell during at least one time slot during which the first configuration is applied.

As an embodiment, the first bearer is not configured to mean: for the first candidate cell, the DAPS bearer is not configured.

As an embodiment, the first bearer is not configured to mean: in response to the first condition being met, the protocol stack is not located at both the second node and the third node at any time during application of the first configuration.

As an embodiment, the first bearer is not configured to mean: in response to the first condition being met, the protocol stack is not located at the maintaining base station of the first serving cell and the maintaining base station of the first candidate cell at any time during application of the first configuration.

As an embodiment, the act of determining whether to send the third signaling on the first serving cell based on whether at least the first bearer is configured comprises: the first bearer is configured as a requirement for transmitting the third signaling on the first serving cell.

As an embodiment, the act of determining whether to send the third signaling on the first serving cell based on whether at least the first bearer is configured comprises: whether or not to send third signaling on the first serving cell is related to at least whether or not the first bearer is configured.

As an embodiment, the act of determining whether to send the third signaling on the first serving cell based on whether at least the first bearer is configured comprises: it is determined whether to send the third signaling on the first serving cell based only on whether the first bearer is configured.

As an embodiment, the act of determining whether to send the third signaling on the first serving cell based on whether at least the first bearer is configured comprises: whether to send third signaling on the first serving cell is determined based on whether the first bearer is configured and whether DAPS handoff is allowed.

As an embodiment, the sender of the first signaling is the second node in the present application.

As an embodiment, the sender of the first signaling is a base station device outside the second node in the present application.

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

As an embodiment, the SRB of the first signaling is SRB1.

As an embodiment, the SRB of the first signaling is SRB3.

As an embodiment, the SRB of the first signaling is split SRB1.

As an embodiment, the receiver of the second signaling is the second node in the present application.

As an embodiment, the receiver of the second signaling is a base station device outside the second node in the present application.

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

As an embodiment, the receiver of the second signaling comprises a maintenance base station of one serving cell of the first node.

As an embodiment, the SRB of the second signaling is SRB1.

As an embodiment, the SRB of the second signaling is SRB3.

As an embodiment, the SRB of the second signaling is split SRB1.

As an embodiment, the sender of the first signaling and the receiver of the second signaling are the same.

As an embodiment, the receiver of the third signaling is the second node in the present application.

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

As an embodiment, the receiver of the third signaling comprises a maintenance base station of one serving cell of the first node.

As an embodiment, the receiver of the third signaling includes a maintaining base station of the SpCell of the first node.

As an embodiment, the third signaling is transmitted through the UL-SCH.

As an embodiment, the SRB of the third signaling is SRB1.

As an embodiment, the SRB of the third signaling is SRB3.

As an embodiment, the sender of the first data packet includes a maintaining base station of the SpCell of the first node.

As an embodiment, the first node determines whether the first bearer is configured according to whether a daps-Config field exists in radio bearconfig or radio bearconfig 2.

As a sub-embodiment of this embodiment, the first bearer is configured if the daps-Config field is present in the radiobearconfig or the radiobearconfig 2.

As a sub-embodiment of this embodiment, the first bearer is not configured if the daps-Config domain is not present in the radiobeareconfig or the radiobeareconfig 2.

As an embodiment, the first node determines whether the first bearer is configured according to whether there is a daps-Config field in DRB-ToAddMod in radio bearconfig or radio bearconfig 2, and DRB-Identity in the DRB-ToAddMod is used to indicate an Identity (DRB-Identity) of the first bearer.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to one embodiment of the present application, as shown in fig. 2. Fig. 2 illustrates a network architecture 200 of a 5G NR (New Radio)/LTE (Long-Term Evolution)/LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR/LTE-a network architecture 200 may be referred to as 5GS (5G System)/EPS (Evolved Packet System ) 200, or some other suitable terminology. The 5GS/EPS 200 includes at least one of a UE (User Equipment) 201, a ran (radio access network) 202,5GC (5G Core Network)/EPC (Evolved Packet Core, evolved packet core) 210, an hss (Home Subscriber Server )/UDM (Unified Data Management, unified data management) 220, and an internet service 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 5GS/EPS provides packet switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The RAN includes node 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards UE 201. Node 203 may be connected to other nodes 204 via an Xn interface (e.g., backhaul)/X2 interface. Node 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology. The node 203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The node 203 is connected to the 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (User Plane Function ) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.

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

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

As an embodiment, the UE201 is a Base Station (BS).

As an embodiment, the node 203 corresponds to the second node in the present application.

As an embodiment, the node 203 is a base station device.

As an example, the node 203 is a base transceiver station (Base Transceiver Station, BTS).

As an embodiment, the node 203 is a node B (NodeB, NB).

As an embodiment, the node 203 is a gNB.

As an embodiment, the node 203 is an eNB.

As an embodiment, the node 203 is a ng-eNB.

As an embodiment, the node 203 is an en-gNB.

As an embodiment, the node 203 is a user equipment.

As an embodiment, the node 203 is a relay device.

As an embodiment, the node 203 is a Gateway (Gateway).

As an embodiment, the node 204 corresponds to the third node in the present application.

As an example, the node 204 is a BS.

For one embodiment, the node 204 is a BTS.

As an example, the node 204 is an NB.

As an example, the node 204 is a gNB.

As an embodiment, the node 204 is an eNB.

As an example, the node 204 is a ng-eNB.

As one example, the node 204 is an en-gNB.

As an embodiment, the node 204 is a user equipment.

As an embodiment, the node 204 is a relay device.

As an embodiment, the node 204 is a Gateway (Gateway).

As an embodiment, the user equipment supports transmission of a terrestrial network (Non-Terrestrial Network, NTN).

As an embodiment, the user equipment supports transmission of a non-terrestrial network (Terrestrial Network ).

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

As an embodiment, the user equipment supports Dual Connection (DC) transmission.

As an embodiment, the user device comprises an aircraft.

As an embodiment, the user equipment includes a vehicle-mounted terminal.

As an embodiment, the user equipment comprises a watercraft.

As an embodiment, the user equipment includes an internet of things terminal.

As an embodiment, the user equipment includes a terminal of an industrial internet of things.

As an embodiment, the user equipment comprises a device supporting low latency high reliability transmissions.

As an embodiment, the user equipment comprises a test equipment.

As an embodiment, the user equipment comprises a signaling tester.

As an embodiment, the base station device supports transmissions on a non-terrestrial network.

As one embodiment, the base station apparatus supports transmissions in a large delay network.

As an embodiment, the base station device supports transmission of a terrestrial network.

As an embodiment, the base station device comprises a macro Cellular (Marco Cellular) base station.

As one embodiment, the base station apparatus includes a Micro Cell (Micro Cell) base station.

As one embodiment, the base station apparatus includes a Pico Cell (Pico Cell) base station.

As an embodiment, the base station device comprises a home base station (Femtocell).

As an embodiment, the base station apparatus includes a base station apparatus supporting a large delay difference.

As an embodiment, the base station device comprises a flying platform device.

As an embodiment, the base station device comprises a satellite device.

As an embodiment, the base station device comprises a TRP (Transmitter Receiver Point, transmitting receiving node).

As an embodiment, the base station apparatus includes a CU (Centralized Unit).

As an embodiment, the base station apparatus includes a DU (Distributed Unit).

As an embodiment, the base station device comprises a test device.

As an embodiment, the base station device comprises a signaling tester.

As an embodiment, the base station apparatus comprises a IAB (Integrated Access and Backhaul) -node.

As an embodiment, the base station device comprises an IAB-donor.

As an embodiment, the base station device comprises an IAB-donor-CU.

As an embodiment, the base station device comprises an IAB-donor-DU.

As an embodiment, the base station device comprises an IAB-DU.

As an embodiment, the base station device comprises an IAB-MT.

As an embodiment, the relay device comprises a relay.

As an embodiment, the relay device comprises an L3 relay.

As an embodiment, the relay device comprises an L2 relay.

As an embodiment, the relay device comprises a router.

As an embodiment, the relay device comprises a switch.

As an embodiment, the relay device comprises a user equipment.

As an embodiment, the relay device comprises a base station device.

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

As an embodiment, the first node is a user equipment, the second node is a user equipment, and the third node is a user equipment.

As an embodiment, the first node is a user equipment, the second node is a relay device, and the third node is a relay device.

As an embodiment, the first node is a base station device, the second node is a user device, and the third node is a user device.

As a sub-embodiment of this embodiment, the second node is a source base station of the first node and the third node is a target base station of the first node.

As a sub-embodiment of this embodiment, the second node is a maintaining base station of the first serving cell and the third node is a maintaining base station of the first candidate cell.

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

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

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

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

As an embodiment, the first node is a NR-enabled device.

As an embodiment, the first node is an LTE enabled device.

As an embodiment, the first node is connected to both the second node and the third node through DAPS at least one time slot in which the first configuration is applied.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture according to one user plane and control plane of the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 with three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (Packet Data Convergence Protocol ) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering the data packets and handover support. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out of order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), in which user plane 350 the radio protocol architecture is substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355 and MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service Data Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic.

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

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

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

As an embodiment, the radio protocol stack of the first node is associated to both the second node and the third node at least one time slot where the first configuration is applied.

As one embodiment, a control plane wireless protocol stack of the first node is located at the second node and the third node during a DAPS handoff.

As one embodiment, a wireless protocol stack for a DAPS bearer for a user plane of the first node is located at the second node and the third node during a DAPS handoff.

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

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

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

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

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

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

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

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

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

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

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

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

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

As an embodiment, the first message in the present application is generated in the MAC302 or the MAC352.

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

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

As an embodiment, the second message in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the second message in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the first data packet in the present application is generated at a higher layer.

As an embodiment, the first data packet in the present application is generated in the RRC306.

As an embodiment, the first data packet in the present application is generated in the PDCP304 or the PDCP354.

As an embodiment, the first data packet in the present application is generated in the MAC302 or the MAC352.

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

Example 4

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, the first communication device 450 at least: receiving first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; transmitting second signaling, the second signaling being used for acknowledgement for the first signaling; in response to the first condition being met, determining whether to send third signaling on the first serving cell based on whether at least a first bearer is configured, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; wherein the first serving cell is a source serving cell of the first node, and the first candidate cell is a target candidate cell of the first node; the first configuration comprises at least the identification of the first node in the first candidate cell and the cell identification of the first candidate cell; the act of determining whether to send third signaling on the first serving cell based on whether at least the first bearer is configured comprises: transmitting the third signaling on the first serving cell if the first bearer is configured; if the first bearer is not configured, not transmitting the third signaling on the first serving cell; the first communication device 450 corresponds to a first node in the present application, and the second communication device 410 corresponds to a second node in the present application.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; transmitting second signaling, the second signaling being used for acknowledgement for the first signaling; in response to the first condition being met, determining whether to send third signaling on the first serving cell based on whether at least a first bearer is configured, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; wherein the first serving cell is a source serving cell of the first node, and the first candidate cell is a target candidate cell of the first node; the first configuration comprises at least the identification of the first node in the first candidate cell and the cell identification of the first candidate cell; the act of determining whether to send third signaling on the first serving cell based on whether at least the first bearer is configured comprises: transmitting the third signaling on the first serving cell if the first bearer is configured; if the first bearer is not configured, not transmitting the third signaling on the first serving cell; the first communication device 450 corresponds to a first node in the present application, and the second communication device 410 corresponds to a second node in the present application.

As one embodiment, the second communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 at least: transmitting first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; receiving second signaling, the second signaling being used for acknowledgement for the first signaling; receiving a third signaling; wherein the first condition is met and a first bearer is configured to determine that the third signaling is sent in a first serving cell, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; the first configuration comprises at least the identification of the receiver of the first signaling in the first candidate cell and the cell identification of the first candidate cell; the first serving cell is a source serving cell of a receiver of the first signaling, and the first candidate cell is a target candidate cell of the receiver of the first signaling; the first communication device 450 corresponds to a first node in the present application, and the second communication device 410 corresponds to a second node in the present application.

As one embodiment, the second communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; receiving second signaling, the second signaling being used for acknowledgement for the first signaling; receiving a third signaling; wherein the first condition is met and a first bearer is configured to determine that the third signaling is sent in a first serving cell, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; the first configuration comprises at least the identification of the receiver of the first signaling in the first candidate cell and the cell identification of the first candidate cell; the first serving cell is a source serving cell of a receiver of the first signaling, and the first candidate cell is a target candidate cell of the receiver of the first signaling; the first communication device 450 corresponds to a first node in the present application, and the second communication device 410 corresponds to a second node in the present application.

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, the first communication device 450 at least: in response to the act of receiving the third signaling, sending a first message, the first message being used to indicate a PDCP SN and HFN of a target PDCP SDU, the target PDCP SDU being a first forwarded PDCP SDU of the first bearer; the first communication device 450 corresponds to a third node in the present application, and the second communication device 410 corresponds to a second node in the present application.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: in response to the act of receiving the third signaling, sending a first message, the first message being used to indicate a PDCP SN and HFN of a target PDCP SDU, the target PDCP SDU being a first forwarded PDCP SDU of the first bearer; the first communication device 450 corresponds to a third node in the present application, and the second communication device 410 corresponds to a second node in the present application.

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, the first communication device 450 at least: in response to receiving the second signaling, determining whether to send a second message based on whether at least the first bearer is configured; wherein if the second message is sent, the second message is used to indicate PDCP SN and HFN of a given PDCP SDU that is the first forwarded PDCP SDU of the first bearer; the act of determining whether to send the second message based on whether at least the first bearer is configured includes: if the first bearer is configured, not sending the second message; if the first bearer is not configured, sending or not sending the second message; alternatively, the act of determining whether to send the second message based on whether at least the first bearer is configured comprises: if the first bearer is configured, not sending the second message; if the first bearer is not configured, sending or not sending the second message; the first communication device 450 corresponds to a third node in the present application, and the second communication device 410 corresponds to a second node in the present application.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: in response to receiving the second signaling, determining whether to send a second message based on whether at least the first bearer is configured; wherein if the second message is sent, the second message is used to indicate PDCP SN and HFN of a given PDCP SDU that is the first forwarded PDCP SDU of the first bearer; the act of determining whether to send the second message based on whether at least the first bearer is configured includes: if the first bearer is configured, not sending the second message; if the first bearer is not configured, sending or not sending the second message; alternatively, the act of determining whether to send the second message based on whether at least the first bearer is configured comprises: if the first bearer is configured, not sending the second message; if the first bearer is not configured, sending or not sending the second message; the first communication device 450 corresponds to a third node in the present application, and the second communication device 410 corresponds to a second node in the present application.

As one embodiment, the second communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 at least: a third receiver receiving a first message, the first message being used to indicate PDCP SN and HFN of a target PDCP SDU, the target PDCP SDU being a first forwarded PDCP SDU of a first bearer; or, receiving a second message, the second message being used to indicate PDCP SN and HFN of a given PDCP SDU, the given PDCP SDU being a first forwarded PDCP SDU of the first bearer; wherein the first signaling is used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; the second signaling is used to acknowledge the first signaling; the first condition is met and the first bearer is configured to determine that the third signaling is sent in the first serving cell, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; the first configuration comprises at least the identification of the sender of the third signaling in the first candidate cell and the cell identification of the first candidate cell; the first serving cell is a source serving cell of a sender of the first signaling, and the first candidate cell is a target candidate cell of the sender of the first signaling; the first communication device 450 corresponds to a third node in the present application, and the second communication device 410 corresponds to a second node in the present application.

As one embodiment, the second communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: a third receiver receiving a first message, the first message being used to indicate PDCP SN and HFN of a target PDCP SDU, the target PDCP SDU being a first forwarded PDCP SDU of a first bearer; or, receiving a second message, the second message being used to indicate PDCP SN and HFN of a given PDCP SDU, the given PDCP SDU being a first forwarded PDCP SDU of the first bearer; wherein the first signaling is used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; the second signaling is used to acknowledge the first signaling; the first condition is met and the first bearer is configured to determine that the third signaling is sent in the first serving cell, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; the first configuration comprises at least the identification of the sender of the third signaling in the first candidate cell and the cell identification of the first candidate cell; the first serving cell is a source serving cell of a sender of the first signaling, and the first candidate cell is a target candidate cell of the sender of the first signaling; the first communication device 450 corresponds to a third node in the present application, and the second communication device 410 corresponds to a second node in the present application.

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

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

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

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

As an example, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 is used to receive a first data packet; the antenna 420, the transmitter 418, the transmit processor 416, and at least one of the controller/processors 475 are used to transmit a first data packet.

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

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

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

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

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

As an embodiment, the first communication device 450 corresponds to a first node in the present application, and the second communication device 410 corresponds to a second node in the present application.

As an embodiment, the first communication device 450 corresponds to a third node in the present application, and the second communication device 410 corresponds to a second node in the present application.

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

As an embodiment, the first communication device 450 is a base station device (gNB/eNB/ng-eNB).

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

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

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

For one embodiment, the first communication device 450 is provided with positioning capabilities.

For one embodiment, the first communication device 450 is not capable.

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

As an embodiment, the second communication device 410 is a user device.

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

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

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

As an embodiment, the second communication device 410 is a satellite device.

As an example, 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.

As an embodiment, the first communication device 450 is a user equipment and the second communication device 410 is a base station device.

As an embodiment, the first communication device 450 is a user device and the second communication device 410 is a user device.

As an embodiment, the first communication device 450 is a base station device and the second communication device 410 is a base station device.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the present application, as shown in fig. 5. It is specifically noted that the order in this example is not limiting of the order of signal transmission and the order of implementation in this application.

For the followingFirst node U01In step S5101, first signaling is received, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; in step S5102, second signaling is sent, the second signaling being used for acknowledgement for the first signaling; in step S5103, it is determined that the first condition is satisfied; in response to the first condition being met, determining whether to send third signaling on the first serving cell based on whether at least a first bearer is configured, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met in step S5104; if the first bearer is configured, go to step S5105, otherwise not go to step S5105; in step S5105, the third signaling is sent on the first serving cell; in step S5106, in response to the act of transmitting the third signaling, receiving fourth signaling, the fourth signaling being used for acknowledgement with respect to the third signaling; in step S5107, as a response to the first condition being satisfied, performing a synchronous reconfiguration process according to the first configuration; in step S5108, a first data packet is received, the first data packet belonging to the first bearer, and the third signaling is used to trigger the first data packet.

For the followingSecond node N02In step S5201, the first signaling is sent; in step S5202, the second signaling is received; in step S5203, receiving the third signaling; in step S5204, in response to the act of receiving the third signaling, sending the fourth signaling; in step S5205, the first data packet is transmitted.

In embodiment 5, the first serving cell is a source serving cell of the first node U01, and the first candidate cell is a target candidate cell of the first node U01; the first configuration comprises at least the identification of the first node U01 in the first candidate cell and the cell identification of the first candidate cell; the act of determining whether to send third signaling on the first serving cell based on whether at least the first bearer is configured comprises: transmitting the third signaling on the first serving cell if the first bearer is configured; if the first bearer is not configured, not transmitting the third signaling on the first serving cell; if the first bearer is configured, the synchronous reconfiguration procedure includes: and establishing the same logical channel configuration in the cell group of the first candidate cell as the logical channel configuration in the cell group of the first service cell for the first bearer.

As an embodiment, the second node N02 is a maintaining base station of the first serving cell.

As an embodiment, the meaning of the sentence "send third signaling as a response to the action, and receive fourth signaling" includes: the third signaling triggers the fourth signaling.

As an embodiment, the meaning of the sentence "send third signaling as a response to the action, and receive fourth signaling" includes: and after the third signaling is sent, receiving the fourth signaling in a certain time interval.

As an embodiment, the meaning of the sentence "send third signaling as a response to the action, and receive fourth signaling" includes: after the third signaling is sent, the fourth signaling is monitored for a time interval.

As an embodiment, the meaning of the sentence "send third signaling as a response to the action, and receive fourth signaling" includes: starting a first timer along with the third signaling; the fourth signaling is received during operation of the first timer.

As an embodiment, the fourth signaling is an RRC message.

As an embodiment, the fourth signaling is a PDCP control PDU.

As an embodiment, the fourth signaling is an RLC PDU.

As an embodiment, the fourth signaling is a physical layer signaling.

As an embodiment, the fourth signaling is an acknowledgement message for the third signaling.

As an embodiment, the fourth signaling is a physical layer acknowledgement for the third signaling.

As an embodiment, the fourth signaling is a lower layer acknowledgement for the third signaling to be successfully submitted.

As an embodiment, the sender of the first data packet includes the second node N02.

As an embodiment, the sender of the first data packet is a maintaining base station of the first serving cell.

As an embodiment, the sender of the first data packet includes a maintaining base station of one serving cell in a cell group to which the first serving cell belongs.

As an embodiment, the PDCP SN of the first data packet is allocated by a maintaining base station of the first serving cell.

As an embodiment, the PDCP SN of the first data packet is allocated by the second node N02.

As an embodiment, the first data packet includes at least one PDCP SDU.

As an embodiment, the first data packet includes at least one PDCP Control (Control) PDU.

As one embodiment, the first Data packet includes at least one PDCP Data (Data) PDU.

As an embodiment, the first data packet includes at least one PDCP header (header).

As an embodiment, the first data packet includes a PDCP SN.

As an embodiment, the first data packet includes at least one downlink packet (downlink packets).

As an embodiment, the phrase that the first data packet belongs to the first bearer includes: the first data packet is associated with the first bearer.

As an embodiment, the phrase that the first data packet belongs to the first bearer includes: the first data packet is received on the first bearer.

As an embodiment, the phrase that the first data packet belongs to the first bearer includes: the first data packet is sent on the first bearer.

As an embodiment, the second node N02 sends the first data packet in response to the second node N02 receiving the third signaling.

As an embodiment, the first candidate cell is considered to be a trigger cell in response to the first condition being met.

As an embodiment, in response to the first condition being met, the first candidate cell is considered to be a trigger cell; if at least one trigger cell exists, the first candidate cell is selected as the selected cell among the at least one trigger cell.

As a sub-embodiment of this embodiment, the first candidate cell is the selected cell if the first candidate cell is the only trigger cell.

As a sub-embodiment of this embodiment, if there are at least two trigger cells, the first node U01 selects the first candidate cell as the selected cell among the at least two trigger cells according to the UE implementation.

As a sub-embodiment of this embodiment, if there are at least two trigger cells, and there is at least one trigger cell configured with a DAPS bearer and at least one trigger cell not configured with a DAPS bearer in the at least two trigger cells, the first node U01 selects the first candidate cell according to whether a DAPS bearer is configured in the at least one trigger cell configured with a DAPS bearer; wherein the first candidate cell is included in the at least one trigger cell configured with a DAPS bearer.

As one embodiment, the sentence "in response to the first condition being satisfied, performing a synchronous reconfiguration process according to the first configuration" includes: in response to the first condition being met, if the first candidate Cell is a Selected Cell, performing a synchronization reconfiguration procedure according to the first configuration.

As an embodiment, the cell group to which the first serving cell belongs is a source cell group.

As an embodiment, the cell group to which the first candidate cell belongs is a target cell group.

As an embodiment, the configuration identity comprises configuration parameters identity.

As an embodiment, the configuration identity comprises the value of the state variable being the same.

As an embodiment, the synchronous reconfiguration procedure includes any one of a first set of actions, whether or not the first bearer is configured; the first set of actions includes at least one of the following actions:

-stop timer T312;

-starting a timer T304;

-if a frequencyInfoDL is included in the first configuration, consider the first candidate cell to be a cell on SSB (SS (Synchronization Signal, synchronization signal)/PBCH (Physical Broadcast Channel ) block, SS/PBCH block) frequency indicated by frequencyInfoDL, the physical cell identity of the first candidate cell being identified by a physiocellid in the first configuration; otherwise, consider the first candidate cell to be a cell on the SSB frequency of the first serving cell, the physical cell identity of the first candidate cell being identified by the physiocellid in the first configuration;

-starting synchronization to the downlink of the first candidate cell;

-applying a BCCH (Broadcast Channel ) configuration of the first candidate cell;

-obtaining a MIB (Master Information Block ) of the first candidate cell, a scheduling reference 3gpp ts 38.213 of the MIB;

as an embodiment, the synchronous reconfiguration procedure includes any one of a second set of actions, whether or not the first bearer is configured; the second set of actions includes at least one of the following actions:

-applying the Identity (newUE-Identity) of the first node U01 in the first candidate cell comprised in the first configuration as a C-RNTI of the first node in the cell group to which the first candidate cell belongs;

-configuring a lower layer of the first candidate cell according to the spCellConfigCommon in the first configuration;

-configuring lower layers of the first candidate cell according to other domains in the first configuration.

As an embodiment, the synchronous reconfiguration procedure includes performing a random access procedure on the first candidate cell, whether or not the first bearer is configured.

As an embodiment, the first set of actions is performed before the second set of actions.

As an embodiment, after the first set of actions is executed, the actions of "establishing, for the first bearer, RLC entities in the cell group to which the first candidate cell belongs with the same RLC entity configuration in the cell group to which the first serving cell belongs, and establishing, for the first bearer, logical channels in the cell group to which the first candidate cell belongs with the same logical channel configuration in the cell group to which the first serving cell belongs".

As an embodiment, before the second set of actions is executed, the actions are performed "establish, for the first bearer, an RLC entity in the cell group to which the first candidate cell belongs with the same RLC entity configuration in the cell group to which the first serving cell belongs, and establish, for the first bearer, a logical channel in the cell group to which the first candidate cell belongs with the same logical channel configuration in the cell group to which the first serving cell belongs.

As an embodiment, if the first bearer is configured, the synchronous reconfiguration procedure includes: and creating the MAC entity of the cell group of the first candidate cell, which is configured identically to the MAC entity of the cell group of the first service cell.

As an embodiment, if the first bearer is configured, the synchronous reconfiguration procedure includes: and establishing the same logical channel configuration in the cell group of the first candidate cell as the logical channel configuration in the cell group of the first service cell for the first bearer.

As an example, the dashed box F5.1 is optional.

As an example, the dashed box F5.1 exists.

As a sub-embodiment of this embodiment, the fourth signaling is present.

As a sub-embodiment of this embodiment, the fourth signaling is sent.

As a sub-embodiment of this embodiment, the fourth signaling is sent and the fourth signaling is received.

As an example, the dashed box F5.1 does not exist.

As a sub-embodiment of this embodiment, the fourth signaling is not present.

As a sub-embodiment of this embodiment, the fourth signaling is not sent.

As an example, the dashed box F5.2 is optional.

As an example, the dashed box F5.2 exists.

As a sub-embodiment of this embodiment, the first data packet is transmitted.

As a sub-embodiment of this embodiment, the first data packet is transmitted and the first data packet is not received.

As an example, the dashed box F5.2 does not exist.

As a sub-embodiment of this embodiment, the first data packet is not transmitted.

Example 6

Embodiment 6 illustrates a wireless signaling flow diagram as to whether at least a first bearer is configured, as shown in fig. 6, if a second message is sent according to one embodiment of the present application. It is specifically noted that the order in this example is not limiting of the order of signal transmission and the order of implementation in this application.

For the followingSecond node N02In step S6201, receiving second signaling, the second signaling being used for acknowledgement for the first signaling; in step S6202, in response to receiving the second signaling, determining whether to send a second message according to whether at least the first bearer is configured; in step S6203, the second message is transmitted.

For the followingThird node N03 In step S6301, the second message is received.

In embodiment 6, the first signaling is used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; if the second message is sent, the second message is used to indicate PDCP SN and HFN of a given PDCP SDU, the given PDCP SDU being the first forwarded PDCP SDU of the first bearer; the act of determining whether to send the second message based on whether at least the first bearer is configured includes: if the first bearer is configured, not sending the second message; and if the first bearer is not configured, sending or not sending the second message.

As an embodiment, forSecond node N02The second node N02 forwards the given PDCP SDU with the second message; for the followingThird node N03And receiving the given PDCP SDU.

As an embodiment, the first message is sent after the given PDCP SDU is forwarded.

As an embodiment, the first message is sent before the given PDCP SDU is forwarded.

As an embodiment, the given PDCP SDU is one PDCP SDU.

As an embodiment, the given PDCP SDU is a data PDU of one DRB.

As an embodiment, the given PDCP SDU is a data PDU of a sidelink DRB.

As an embodiment, the structure of the given PDCP SDU is referred to section 6.2.2 in 3gpp TS 38.323.

As an embodiment, the definition of PDCP SN refers to reference 3gpp TS 38.323.

As an embodiment, the definition of HFN refers to reference 3gpp TS 38.323.

As an embodiment, the action of determining whether to send the second message according to at least whether the first bearer is configured means that: whether the second message is sent is related to whether at least the first bearer is configured.

As an embodiment, the act of receiving the second signaling triggers the act of determining whether to send the second message based on at least whether the first bearer is configured.

As an embodiment, after the act of receiving the second signaling, it is determined whether to send the second message based on at least whether the first bearer is configured.

As one embodiment, the phrase the second message is used to indicate PDCP SN and HFN of a given PDCP SDU includes: the second message displays the PDCP SN and the HFN indicating the given PDCP SDU.

As one embodiment, the phrase the second message is used to indicate PDCP SN and HFN of a given PDCP SDU includes: the second message implicitly indicates the PDCP SN and the HFN of the given PDCP SDU.

As one embodiment, the phrase the second message is used to indicate PDCP SN and HFN of a given PDCP SDU includes: the second message indicates a COUNT value of the given PDCP SDU that is used to determine the PDCP SN and the HFN of the given PDCP SDU.

As one embodiment, the phrase the second message is used to indicate PDCP SN and HFN of a given PDCP SDU includes: the second message indicates a COUNT value of the given PDCP SDU including the PDCP SN and the HFN of the given PDCP SDU.

As one embodiment, the phrase the second message is used to indicate PDCP SN and HFN of a given PDCP SDU includes: the second message indicates a COUNT value of the given PDCP SDU consisting of the HFN and the PDCP SN of the given PDCP SDU.

As an embodiment, the second message comprises a EARLY STATUS TRANSFER message.

As an embodiment, the second message comprises EarlyStatusTransfer PDU.

As one embodiment, the second message includes EarlyStatusTransferIEs

As an embodiment, the second message comprises a drbsubjecttoearlystatus transfer-List IE.

As an embodiment, the second message comprises a drbsubjecttoearlystatus transfer-Item.

As an embodiment, the second message includes dlCount.

As an embodiment, the second message includes a first dlcount indicating a COUNT value of a first downlink SDU forwarded by the second node N02 to the third node N03.

As an embodiment, the second message comprises a ProcedureStageChoice.

As an embodiment, the second message comprises a drbsid indicating an identity of the first bearer (DRB-ID).

As an embodiment, the phrase that the given PDCP SDU is the first forwarded PDCP SDU of the first bearer comprises: for the first bearer, none of the PDCP SDUs are forwarded to the third node N03 before the given PDCP SDU is forwarded.

As an embodiment, the phrase that the given PDCP SDU is the first forwarded PDCP SDU of the first bearer comprises: after the first bearer is configured, none of the PDCP SDUs are forwarded to the third node N03 before the given PDCP SDU is forwarded for the first bearer.

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

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

As an embodiment, the third node N03 is a candidate target node of interest to the second node N02.

As an embodiment, the third node N03 is a candidate target node selected by the second node N02 from a plurality of candidate target nodes.

As one embodiment, the DAPS reconfiguration in this application includes a DAPS handoff.

As one embodiment, the DAPS reconfiguration in this application includes a DAPS CPC.

As an embodiment, the phrase that the given PDCP SDU is the first forwarded PDCP SDU of the first bearer comprises: the given PDCP SDU is the first PDCP SDU forwarded from the second node N02 to the third node N03 for the first bearer.

As an embodiment, the phrase that the given PDCP SDU is the first forwarded PDCP SDU of the first bearer comprises: the given PDCP SDU is a first PDCP SDU for the first bearer forwarded from a maintaining base station of the first serving cell to a maintaining base station of the first candidate cell.

As an embodiment, if the second message is sent, the second message is sent earlier than the first data packet.

As an embodiment, if the second message is sent, the second message is sent later than the first data packet.

As an embodiment, the sentence "the second signaling is used for acknowledgement for the first signaling" includes: the second signaling is used to trigger the second message.

As an embodiment, if the first bearer is not configured, whether to send the second message is determined by the first node U01 according to UE implementation.

As an embodiment, if the first bearer is not configured, the first node U01 decides whether to send the second message.

As an embodiment, the first node U01 sends the second message if the first bearer is not configured.

As an embodiment, the first node U01 does not send the second message if the first bearer is not configured.

As an embodiment, the second message is not sent if the first bearer is configured.

As an example, the dashed box F6.1 is optional.

As an example, the dashed box F6.1 exists.

As a sub-embodiment of this embodiment, the second message is sent.

As an example, the dashed box F6.1 does not exist.

As a sub-embodiment of this embodiment, the second message is not sent.

Example 7

Embodiment 7 illustrates a wireless signaling flow diagram as to whether at least a first bearer is configured, as shown in fig. 7, if a second message is sent according to another embodiment of the present application. It is specifically noted that the order in this example is not limiting of the order of signal transmission and the order of implementation in this application.

For the followingSecond node N02In step S7201, receiving second signaling, said second signaling being used for acknowledgement for said first signaling; in step S7202, in response to receiving the second signaling, determining whether to send a second message according to whether at least the first bearer is configured; in step S7203, transmitting the second message; in step S7204, the second message is transmitted.

For the followingThird node N03In step S7301, the second message is received; in step S7302, the second message is received.

In embodiment 7, the first signaling is used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; if the second message is sent, the second message is used to indicate PDCP SN and HFN of a given PDCP SDU, the given PDCP SDU being the first forwarded PDCP SDU of the first bearer; the act of determining whether to send the second message based on whether at least the first bearer is configured includes: sending the second message if the first bearer is configured; and if the first bearer is not configured, sending or not sending the second message.

As an embodiment, the second message is sent if the first bearer is configured.

As an example, the dashed box F7.1 is optional.

As an example, the dashed box F7.1 exists.

As a sub-embodiment of this embodiment, the second message is sent.

As an example, the dashed box F7.1 does not exist.

As a sub-embodiment of this embodiment, the second message is not sent.

Example 8

Embodiment 8 illustrates a wireless signaling flow diagram in which third signaling is used to trigger a first message according to one embodiment of the present application, as shown in fig. 8. It is specifically noted that the order in this example is not limiting of the order of signal transmission and the order of implementation in this application.

For the followingSecond node N02In step S8201, third signaling is received, the first condition is satisfied and a first bearer is configured to determine that the third signaling is transmitted in a first serving cell, the first bearer is a DAPS bearer, and the third signaling is used to indicate that the first condition is satisfied; in step S8202, in response to the act of receiving the third signaling, sending fourth signaling, the fourth signaling being used to acknowledge the third signaling; in step S8203, in response to the act of receiving the third signaling, a first message is sent, the first message being used to indicate PDCP SN and HFN of a target PDCP SDU, the target PDCP SDU being a first forwarded PDCP SDU of the first bearer.

For the followingThird node N03In step S8301, the first message is received.

In embodiment 8, the first signaling is used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; the second signaling is used to acknowledge the first signaling; the first configuration comprises at least the identification of the receiver of the first signaling in the first candidate cell and the cell identification of the first candidate cell; the first serving cell is a source serving cell of a receiver of the first signaling and the first candidate cell is a target candidate cell of the receiver of the first signaling.

As an embodiment, forSecond node N02Accompanying stationThe first message, the second node N02 forwards the target PDCP SDU; for the followingThird node N03And receiving the target PDCP SDU.

As an embodiment, the first message is sent after the target PDCP SDU is forwarded.

As an embodiment, the first message is sent before the target PDCP SDU is forwarded.

As an embodiment, the target PDCP SDU is one PDCP SDU.

As an embodiment, the target PDCP SDU is a data PDU of one DRB.

As an embodiment, the target PDCP SDU is a data PDU of a sidelink DRB.

As an embodiment, the structure of the target PDCP SDU is referred to section 6.2.2 in 3gpp TS 38.323.

As one embodiment, the phrase the first message being used to indicate PDCP SN and HFN of a target PDCP SDU comprises: the first message displays the PDCP SN and the HFN indicating the target PDCP SDU.

As one embodiment, the phrase the first message being used to indicate PDCP SN and HFN of a target PDCP SDU comprises: the first message implicitly indicates the PDCP SN and the HFN of the target PDCP SDU.

As one embodiment, the phrase the first message being used to indicate PDCP SN and HFN of a target PDCP SDU comprises: the first message indicates a COUNT value of the target PDCP SDU, which is used to determine the PDCP SN and the HFN of the target PDCP SDU.

As one embodiment, the phrase the first message being used to indicate PDCP SN and HFN of a target PDCP SDU comprises: the first message indicates a COUNT value of the target PDCP SDU including the PDCP SN and the HFN of the target PDCP SDU.

As one embodiment, the phrase the first message being used to indicate PDCP SN and HFN of a target PDCP SDU comprises: the first message indicates a COUNT value of the target PDCP SDU, the COUNT value of the target PDCP SDU consisting of the HFN and the PDCP SN of the target PDCP SDU.

As an embodiment, the first message comprises a EARLY STATUS TRANSFER message.

As an embodiment, the first message comprises EarlyStatusTransfer PDU.

As one embodiment, the first message comprises earlystatus transfer-IEs.

As an embodiment, the first message comprises a drbsubjecttoearlystatus transfer-List IE.

As an embodiment, the first message comprises a drbsubjecttoearlystatus transfer-Item.

As an embodiment, the first message includes dlCount.

As an embodiment, the first message includes a first dlcount indicating a COUNT value of a first downlink SDU forwarded by the second node N02 to the third node N03.

As an embodiment, the first message comprises a ProcedureStageChoice.

As an embodiment, the first message comprises a drbsid indicating an identity of the first bearer (DRB-ID).

As an embodiment, the phrase that the target PDCP SDU is the first forwarded PDCP SDU of the first bearer comprises: for the first bearer, none of the PDCP SDUs are forwarded to the third node N03 before the target PDCP SDU is forwarded.

As an embodiment, the phrase that the target PDCP SDU is the first forwarded PDCP SDU of the first bearer comprises: after the first condition is met, none of the PDCP SDUs is forwarded to the third node N03 before the target PDCP SDU is forwarded for the first bearer.

As an embodiment, the phrase that the target PDCP SDU is the first forwarded PDCP SDU of the first bearer comprises: after the first bearer is configured, none of the PDCP SDUs are forwarded to the third node N03 before the target PDCP SDU is forwarded for the first bearer.

As an embodiment, the second transmitter sends or does not send a second message in response to receiving the second signaling; in response to the act of receiving the third signaling, if the second message is sent, not sending the first message, if the second message is not sent, sending the first message.

As an embodiment, the second transmitter, in response to receiving the second signaling, does not send a second message if the first bearer is configured; and sending the first message as a response to the act of receiving the third signaling.

As an embodiment, the second transmitter, in response to receiving the second signaling, does not send a second message if the first bearer is configured; in response to the act of receiving the third signaling, the first message is not sent.

As an embodiment, the second transmitter, in response to receiving the second signaling, sends a second message if the first bearer is configured; in response to the act of receiving the third signaling, the first message is not sent.

As an embodiment, the second transmitter, in response to receiving the second signaling, sends a second message if the first bearer is configured; and sending the first message as a response to the act of receiving the third signaling.

As an embodiment, if the first message is not sent and the second message is not sent, a SN STATUS TRANSFER message is sent.

As an example, the dashed box F8.1 is optional.

As an example, the dashed box F8.1 exists.

As an example, the dashed box F8.1 does not exist.

Example 9

Embodiment 9 illustrates a schematic diagram in which third signaling is used to trigger release of a given configuration set, as shown in fig. 9, according to one embodiment of the present application.

In embodiment 9, the third signaling is used to trigger release of a given set of configurations including at least one of a CA configuration, or a DC configuration, or a SUL configuration, or a multi-TRP configuration, or an EHC configuration, or a sidelink configuration.

As an embodiment, the given set of configurations is maintained before the first signaling is received and the first condition is met.

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

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

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

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

As one embodiment, the phrase the third signaling is used to trigger release of a given set of configurations includes: the given set of configurations is released before the third signaling is sent.

As one embodiment, the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling is triggered to determine to release the given set of configurations.

As one embodiment, the phrase the third signaling is used to trigger release of a given set of configurations includes: the condition for sending the third signaling is satisfied and is used to determine to release the given set of configurations.

As one embodiment, the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling is sent for determining to release the given set of configurations.

As one embodiment, the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling is generated to be used in determining to release the given set of configurations.

As one embodiment, the phrase the third signaling is used to trigger release of a given set of configurations includes: an acknowledgement message for the third signaling is received to be used in determining to release the given set of configurations.

As one embodiment, the phrase the third signaling is used to trigger release of a given set of configurations includes: releasing the given set of configurations is related to the third signaling.

As one embodiment, the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling is used to indicate that the given set of configurations is released.

As one embodiment, the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling triggers the fourth signaling, which is used to command the release of the given set of configurations.

As an embodiment, with the third signaling, releasing the given set of configurations; the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling is used to indicate that the given set of configurations is released.

As an embodiment, releasing the given set of configurations in response to the act of receiving fourth signaling; the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling triggers the fourth signaling, which is used to command the release of the given set of configurations.

As an embodiment, releasing a configuration refers to deleting the one configuration.

As one example, releasing a configuration refers to not using a configuration.

As one embodiment, the CA configuration includes Carrier Aggregation.

As an embodiment, the CA configuration comprises SCell.

As an embodiment, the CA configuration includes scells in a cell group to which the first serving cell belongs.

As an embodiment, the CA configuration includes a configuration of all scells in a cell group to which the first serving cell belongs.

As one embodiment, the CA configuration includes SCellIndex.

As an embodiment, the CA configuration comprises a configuration in ScellConfig.

As one embodiment, the CA configuration includes a configuration in ServingCellConfigCommon associated with SCellIndex.

As one embodiment, the CA configuration includes a configuration in ServingCellConfig associated to SCellIndex.

As one embodiment, the CA configuration includes a configuration in SMTC (SSB based measurement timing configuration) (smtc) associated with SCellIndex.

As one embodiment, the CA configuration includes a configuration of SCell state (sCellState) associated with SCellIndex.

As one embodiment, the DC configuration includes SRB3.

As one embodiment, the DC configuration comprises a configuration of an SCG.

As an embodiment, the DC configuration comprises a measurement configuration (measConfig) associated to the SCG.

As one embodiment, the DC configuration includes a bap-Config associated to an SCG.

As an embodiment, the DC configuration comprises other configurations (otherConfig) associated to SCG.

As one embodiment, the multi-TRP configuration includes DL BWP (Bandwidth Part) based on multi-DCI (Downlink Control Information )/multi-TRP of single DCI (multi-DCI/single-DCI based multi-TRP).

As one embodiment, the SUL configuration includes a supplemental uplink (supplementary uplink).

As one embodiment, the SUL configuration includes a supplemental uplink (supplementary uplink) configuration.

As one embodiment, the SUL configuration includes a configuration in supplementaryUplink.

As one embodiment, the SUL configuration includes a configuration in supplementaryUplinkConfig.

As an embodiment, the SUL configuration comprises a configuration in RACH-ConfigDedicated.

As one embodiment, the SUL configuration includes a configuration in UplinkConfig.

As one embodiment, the SUL configuration comprises the configuration in UplinkConfigCommon IE.

As one embodiment, the SUL configuration comprises the configuration in UplinkConfigCommonSIB IE.

As an embodiment, the fourth signaling includes a field, where a name of the field includes a supplementaryuplink release, and the field is used to command release of the SUL configuration.

As an embodiment, the fourth signaling includes a field, where the name of the field includes ethernet header compression, and the field is set to release to instruct the EHC configuration to be released.

As an embodiment, the fourth signaling includes a field, where a name of the field includes sl-radio bearetorrelease list, and the field is used to indicate release of the sidelink configuration.

As an embodiment, the fourth signaling includes a field, where a name of the field includes sl-RLC-bearetorrelease list, and the field is used to indicate release of the sidelink configuration.

As an embodiment, the fourth signaling includes a field, where a name of the field includes slrb-ConfigToReleaseList, and the field is used to indicate that the sidelink configuration is released.

As one embodiment, the EHC configuration includes ethernet header compression (Ethernet Header Compresssion, EHC).

As one embodiment, the EHC configuration includes ethernet header compression.

As one embodiment, the EHC configuration includes a configuration in ethernet header compression.

As an example, the EHC configuration includes the Length of the CID (Context Identifier) field of the EHC packet (EHC-CID-Length).

As an embodiment, the EHC configuration comprises the length of the CID field of the EHC packet.

As an embodiment, the EHC configuration comprises a value of a max_cid_ehc_ul parameter (maxCID-EHC-UL) in 3gpp TS 38.323.

As an embodiment, the EHC configuration includes an indication (drb-continuehc-DL) that the PDCP entity continues or resets the downlink EHC header compression protocol during PDCP re-establishment.

As an embodiment, the EHC configuration includes an indication (drb-continuehc-UL) that the PDCP entity continues or resets the uplink EHC header compression protocol during PDCP re-establishment.

As an embodiment, the sidelink configuration includes an NR (New Radio) sidelink configuration.

As one embodiment, the sidelink configuration comprises a V2X sidelink configuration.

As an embodiment, the sidelink configuration comprises a sidelink DRB.

As one embodiment, the sidelink configuration includes a PDCP entity associated with NR sidelink communications of the sidelink DRB.

As one embodiment, the sidelink configuration includes RLC entities and corresponding logical channels of NR sidelink communications associated with the sidelink DRB.

As an embodiment, the sidelink configuration comprises an RLC configuration (SL-RLC-Config) of the sidelink.

As an embodiment, the sidelink configuration comprises a sidelink PDCP configuration (SL-PDCP-Config).

As an embodiment, the sidelink configuration comprises a sidelink measurement configuration (SL-MeasConfigCommon).

Example 10

Embodiment 10 illustrates a wireless signaling flow diagram in which third signaling is used to trigger release of a given set of configurations, as shown in fig. 10, according to one embodiment of the present application. It is specifically noted that the order in this example is not limiting of the order of signal transmission and the order of implementation in this application.

For the followingFirst node U01In step S10101, it is determined that a first condition is satisfied and a first bearer is configured, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is satisfied; transmitting the third signaling on the first serving cell in step S10102; in step S10103, releasing the given set of configurations with the third signaling; in step S10104, in response to the act of sending the third signaling, fourth signaling is received, the fourth signaling being used to acknowledge the third signaling.

As one embodiment, the first signaling is used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; the first serving cell is a source serving cell of the first node U01, and the first candidate cell is a target candidate cell of the first node U01; the first configuration comprises at least the identification of the first node U01 in the first candidate cell and the cell identification of the first candidate cell; the third signaling being used to indicate that the first condition is satisfied includes: the third signaling is used to trigger release of the given set of configurations including at least one of a CA configuration, or a DC configuration, or a SUL configuration, or a multi-TRP configuration, or an EHC configuration, or a sidelink configuration; the phrase the third signaling is used to trigger release of the given set of configurations includes: the third signaling is used to indicate that the given set of configurations is released.

As an embodiment, with the third signaling, the given set of configurations is released if configured.

As an embodiment, with the third signaling, if the given configuration set is configured, releasing part of the configurations in the given configuration set.

As an embodiment, with the third signaling, if the given set of configurations is configured, releasing all configurations in the given set of configurations.

As an embodiment, the phrase accompanying the third signaling includes: if the first condition is satisfied and the first bearer is configured.

As an embodiment, the phrase accompanying the third signaling includes: the third signaling is triggered.

As an embodiment, the phrase accompanying the third signaling includes: the third signaling is generated.

As an embodiment, the phrase accompanying the third signaling includes: the third signaling is sent.

As an embodiment, the phrase accompanying the third signaling includes: before the third signaling is sent.

As an embodiment, the phrase accompanying the third signaling includes: UE Assistance Information process is initiated (Initiation).

As an embodiment, the phrase accompanying the third signaling includes: before the third signaling is triggered and the content in the third signaling is set.

As an embodiment, the phrase accompanying the third signaling includes: as a response to the third signaling being submitted to a lower layer.

As an example, the Release means Release.

As an embodiment, with the third signaling, at least one of the act of "releasing the given configuration set", or the act of "starting a first timer", or the act of "establishing, for the first bearer, an RLC entity in the cell group to which the first candidate cell belongs with the same RLC entity configuration in the cell group to which the first serving cell belongs, and establishing, for the first bearer, a logical channel in the cell group to which the first candidate cell belongs with the same logical channel configuration in the cell group to which the first serving cell belongs" is performed.

As one embodiment, the phrase the third signaling is used to indicate that the given set of configurations is released includes: the third signaling display indicates that the given set of configurations is released.

As one embodiment, the phrase the third signaling is used to indicate that the given set of configurations is released includes: the third signaling implicitly indicates that the given set of configurations is released.

As one embodiment, the phrase the third signaling is used to indicate that the given set of configurations is released includes: after the given set of configurations is released, the third signaling is sent.

As one embodiment, the phrase the third signaling is used to indicate that the given set of configurations is released includes: the third signaling is sent when releasing the given set of configurations is triggered.

As one embodiment, the phrase the third signaling is used to indicate that the given set of configurations is released includes: the third signaling is triggered to determine to release the given set of configurations.

As one embodiment, the phrase the third signaling is used to indicate that the given set of configurations is released includes: releasing the given set of configurations is triggered by the third signaling.

Example 11

Embodiment 11 illustrates a wireless signaling flow diagram in which third signaling is used to trigger release of a given set of configurations according to another embodiment of the present application, as shown in fig. 11. It is specifically noted that the order in this example is not limiting of the order of signal transmission and the order of implementation in this application.

For the following First node U01In step S11101, it is determined that a first condition is satisfied and a first bearer is configured, the first bearer being a DAPS bearer, the third signaling being used to indicate the first conditionIs satisfied; transmitting the third signaling on the first serving cell in step S11102; in step S11103, in response to the act of transmitting the third signaling, receiving fourth signaling, the fourth signaling being used for acknowledgement for the third signaling; in step S11104, releasing the given set of configurations in response to the behavior receiving fourth signaling;

as one embodiment, the first signaling is used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; the first serving cell is a source serving cell of the first node U01, and the first candidate cell is a target candidate cell of the first node U01; the first configuration comprises at least the identification of the first node U01 in the first candidate cell and the cell identification of the first candidate cell; the third signaling being used to indicate that the first condition is satisfied includes: the third signaling is used to trigger release of the given set of configurations including at least one of a CA configuration, or a DC configuration, or a SUL configuration, or a multi-TRP configuration, or an EHC configuration, or a sidelink configuration; the phrase the third signaling is used to trigger release of the given set of configurations includes: the third signaling triggers the fourth signaling, which is used to command the release of the given set of configurations.

As an embodiment, in response to the act of receiving fourth signaling, the given set of configurations is released if configured.

As an embodiment, in response to the act of receiving fourth signaling, all configurations in the given set of configurations are released if the given set of configurations is configured.

As an embodiment, in response to the act of receiving fourth signaling, if the given set of configurations is configured, releasing a portion of the configurations in the given set of configurations.

As an embodiment, the phrase in response to the act receiving the fourth signaling means: when the fourth signaling is received.

As an embodiment, the phrase in response to the act receiving the fourth signaling means: if the fourth signaling is received.

As an embodiment, the phrase in response to the act receiving the fourth signaling means: as a response to the fourth signaling being received.

As one embodiment, the phrase the fourth signaling is used to command release of the given set of configurations includes: the fourth signaling is used to implicitly indicate the release of the given set of configurations.

As one embodiment, the phrase the fourth signaling is used to command release of the given set of configurations includes: the fourth signaling is received for determining to release the given set of configurations.

As one embodiment, the phrase the fourth signaling is used to command release of the given set of configurations includes: the fourth signaling is used to display an indication to release the given set of configurations.

As one embodiment, the phrase the fourth signaling is used to command release of the given set of configurations includes: the fourth signaling includes an indication that instructs the release of the given set of configurations.

As one embodiment, the phrase the fourth signaling is used to command release of the given set of configurations includes: the given set of configurations is not released until the fourth signaling is received.

As an embodiment, if a field in the fourth signaling is set, the fourth signaling is used to command the release of the given set of configurations.

As an embodiment, if one of the fields in the fourth signaling is set to wire, the fourth signaling is used to command the release of the given set of configurations.

Example 12

Embodiment 12 illustrates a block diagram of a processing apparatus for use in a first node according to one embodiment of the present application; as shown in fig. 12. In fig. 12, the processing means 1200 in the first node comprises a first receiver 1201 and a first transmitter 1202.

A first receiver 1201 receiving first signaling, the first signaling being used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell;

a first transmitter 1202 that transmits second signaling, the second signaling being used for acknowledgement for the first signaling;

the first transmitter 1202, in response to the first condition being met, determines whether to send third signaling on a first serving cell based on whether at least a first bearer is configured, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met;

in embodiment 12, the first serving cell is a source serving cell of the first node, and the first candidate cell is a target candidate cell of the first node; the first configuration comprises at least the identification of the first node in the first candidate cell and the cell identification of the first candidate cell; the act of determining whether to send third signaling on the first serving cell based on whether at least the first bearer is configured comprises: transmitting the third signaling on the first serving cell if the first bearer is configured; and if the first bearer is not configured, not transmitting the third signaling on the first serving cell.

As an embodiment, the first receiver 1201 receives, in response to the act of sending the third signaling, fourth signaling, which is used to acknowledge the third signaling.

As an embodiment, the third signaling is used to indicate that the first condition is satisfied comprises: the third signaling is used to trigger a first message that is used to indicate PDCP SN and HFN of the target PDCP SDU; the target PDCP SDU is a first forwarded PDCP SDU of the first bearer.

As an embodiment, the third signaling is used to trigger the release of a given set of configurations including at least one of a CA configuration, or a DC configuration, or a SUL configuration, or a multi-TRP configuration, or an EHC configuration, or a sidelink configuration.

As an embodiment, the first receiver 1201, accompanied by the third signaling, releases the given set of configurations; the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling is used to indicate that the given set of configurations is released.

As an embodiment, the first receiver 1201 releases the given set of configurations in response to the act of receiving fourth signaling; the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling triggers the fourth signaling, which is used to command the release of the given set of configurations.

As an embodiment, whether a second message is sent is related to whether at least a first bearer is configured, the second message being used to indicate PDCP SN and HFN of a given PDCP SDU, the given PDCP SDU being the first forwarded PDCP SDU of the first bearer, the second signaling being used to trigger the second message, if the second message is sent; whether the phrase second message is sent in relation to whether at least a first bearer is configured includes: if the first bearer is configured, the second message is not sent; the second message is sent or not sent if the first bearer is not configured.

As an embodiment, whether a second message is sent is related to whether at least a first bearer is configured, the second message being used to indicate PDCP SN and HFN of a given PDCP SDU, the given PDCP SDU being the first forwarded PDCP SDU of the first bearer, the second signaling being used to trigger the second message, if the second message is sent; whether the phrase second message is sent in relation to whether at least a first bearer is configured includes: if the first bearer is configured, the second message is sent; the second message is sent or not sent if the first bearer is not configured.

As an embodiment, the first receiver 1201 receives a first data packet, where the first data packet belongs to the first bearer, and the third signaling is used to trigger the first data packet.

As an embodiment, the first transmitter 1202 performs a synchronous reconfiguration procedure according to the first configuration in response to the first condition being met;

As an embodiment, the first transmitter 1202 starts a first timer along with the third signaling; the first receiver 1201 stops the first timer in response to the act of receiving fourth signaling.

As an embodiment, the first receiver 1201, in response to the first condition being met, if the first bearer is configured, the RRC layer of the first node sends a first indication to a lower layer of the first node; the lower layer of the first node receives the first indication; the act of the lower layer of the first node receiving the first indication is used to trigger the third signaling.

As an example, the first receiver 1201 includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an embodiment, the first receiver 1201 includes an antenna 452, a receiver 454, a multi-antenna receiving processor 458, and a receiving processor 456 in fig. 4 of the present application.

As an embodiment, the first receiver 1201 includes the antenna 452, the receiver 454, and the receiving processor 456 of fig. 4 of the present application.

As an example, the first transmitter 1202 includes an antenna 452, a transmitter 454, a multi-antenna transmit processor 457, a transmit processor 468, a controller/processor 459, a memory 460, and a data source 467 of fig. 4 of the present application.

As an example, the first transmitter 1202 includes an antenna 452, a transmitter 454, a multi-antenna transmit processor 457, and a transmit processor 468 of fig. 4 of the present application.

As an example, the first transmitter 1202 includes an antenna 452, a transmitter 454, and a transmission processor 468 of fig. 4 of the present application.

Example 13

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

A second transmitter 1301 transmitting first signaling, which is used to determine at least a first condition and a first configuration, which are associated to a first candidate cell;

a second receiver 1302 that receives second signaling, the second signaling being used for acknowledging the first signaling;

the second receiver 1302 receives third signaling;

in embodiment 13, the first condition is met and a first bearer is configured to determine that the third signaling is sent in the first serving cell, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; the first configuration comprises at least the identification of the receiver of the first signaling in the first candidate cell and the cell identification of the first candidate cell; the first serving cell is a source serving cell of a receiver of the first signaling and the first candidate cell is a target candidate cell of the receiver of the first signaling.

As an embodiment, the second transmitter 1301 sends fourth signaling in response to the act of receiving third signaling, the fourth signaling being used for acknowledging the third signaling.

As an embodiment, the second transmitter 1301 sends a first message as a response to the action receiving the third signaling, the first message being used to indicate PDCP SN and HFN of a target PDCP SDU, which is the first forwarded PDCP SDU of the first bearer.

As an embodiment, the second transmitter 1301, in response to receiving the second signaling, determines whether to send a second message according to whether at least the first bearer is configured; wherein if the second message is sent, the second message is used to indicate PDCP SN and HFN of a given PDCP SDU that is the first forwarded PDCP SDU of the first bearer; the act of determining whether to send the second message based on whether at least the first bearer is configured includes: if the first bearer is configured, not sending the second message; and if the first bearer is not configured, sending or not sending the second message.

As an embodiment, the second transmitter 1301, in response to receiving the second signaling, determines whether to send a second message according to whether at least the first bearer is configured; wherein if the second message is sent, the second message is used to indicate PDCP SN and HFN of a given PDCP SDU that is the first forwarded PDCP SDU of the first bearer; the act of determining whether to send the second message based on whether at least the first bearer is configured includes: sending the second message if the first bearer is configured; and if the first bearer is not configured, sending or not sending the second message.

As an embodiment, the second transmitter 1301 sends a first data packet as a response to the action receiving the third signaling, where the first data packet belongs to the first bearer.

As an embodiment, in response to the first condition being met, a synchronous reconfiguration procedure is performed according to the first configuration; if the first bearer is configured, the synchronous reconfiguration procedure includes: and establishing the same logical channel configuration in the cell group of the first candidate cell as the logical channel configuration in the cell group of the first service cell for the first bearer.

As an embodiment, the second transmitter 1301 transmits a third message; the second receiver 1302 receives a fourth message in response to the act of sending the third message; wherein the third message includes an identifier of the first candidate cell and a C-RNTI of the first node in the first serving cell; the third message is used to request a conditional reconfiguration; the fourth message includes at least a portion of the first configuration.

As an example, the second transmitter 1301 includes the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

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

As an embodiment, the second transmitter 1301 includes the antenna 420 in fig. 4 of the present application, the transmitter 418, and the transmitting processor 416.

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

The second receiver 1302, for one embodiment, includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, and the receive processor 470 of fig. 4 of the present application.

The second receiver 1302, as one embodiment, includes the antenna 420, the receiver 418, and the receive processor 470 of fig. 4 of the present application.

Example 14

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

A third receiver 1402 that receives a first message that is used to indicate PDCP SN and HFN of a target PDCP SDU that is a first forwarded PDCP SDU of a first bearer; or, receiving a second message, the second message being used to indicate PDCP SN and HFN of a given PDCP SDU, the given PDCP SDU being a first forwarded PDCP SDU of the first bearer;

in embodiment 14, the first signaling is used to determine at least a first condition and a first configuration, the first condition and the first configuration being associated to a first candidate cell; the second signaling is used to acknowledge the first signaling; the first condition is met and the first bearer is configured to determine that the third signaling is sent in the first serving cell, the first bearer being a DAPS bearer, the third signaling being used to indicate that the first condition is met; the first configuration comprises at least the identification of the sender of the third signaling in the first candidate cell and the cell identification of the first candidate cell; the first serving cell is a source serving cell of a sender of the first signaling, and the first candidate cell is a target candidate cell of the sender of the first signaling.

As an embodiment, the sender of the first message is the second node in the present application.

As an embodiment, the sender of the second message is the second node in the present application.

As an embodiment, the sender of the first signaling is the first node in the present application.

As an embodiment, the receiver of the second signaling is the first node in the present application.

As an embodiment, the sender of the third signaling is the first node in the present application.

As an embodiment, the receiver of the first signaling is a maintenance base station of one serving cell of the first node in the present application.

As an embodiment, the sender of the second signaling is a maintaining base station of one serving cell of the first node in the present application.

As an embodiment, the receiver of the third signaling is a maintaining base station of one serving cell of the first node in the present application.

As an embodiment, the receiver of the first signaling is the sender of the first message or the second message.

As an embodiment, the sender of the second signaling is the sender of the first message or the second message.

As an embodiment, the receiver of the third signaling is the sender of the first message or the second message.

As an embodiment, the source serving cell refers to a source PCell, and the target candidate cell is at least a target candidate PCell.

As an embodiment, the first serving cell is a PCell of the first node.

As an embodiment, the first serving cell is a PSCell of the first node.

As an embodiment, the first serving cell is a SpCell of the first node.

As an embodiment, the first serving cell is a primary cell in a cell group of the first node.

As an embodiment, the first serving cell is a serving cell of the first node.

As an embodiment, the source serving cell refers to the serving cell before the conditional reconfiguration is completed.

As an embodiment, the target candidate cell refers to a serving cell after the conditional reconfiguration is completed.

As an embodiment, the third receiver 1401 receives a third message; in response to the act of receiving the third message, the third transmitter 1402 sends a fourth message; wherein the third message includes an identifier of the first candidate cell and a C-RNTI of the first node in the first serving cell; the third message is used to request a conditional reconfiguration; the fourth message includes at least a portion of the first configuration.

The third receiver 1401, as an example, includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

The third receiver 1401 includes, as an example, an antenna 452, a receiver 454, a multi-antenna receive processor 458, and a receive processor 456 of fig. 4 of the present application.

As an example, the third receiver 1401 includes an antenna 452, a receiver 454, and a receiving processor 456 according to fig. 4 of the present application.

As an example, the third transmitter 1402 includes the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an example, the third transmitter 1402 includes the antenna 452, the transmitter 454, the multi-antenna transmitting processor 457, and the transmitting processor 468 shown in fig. 4 of the present application.

As an example, the third transmitter 1402 includes the antenna 452, the transmitter 454, and the transmitting processor 468 shown in fig. 4 of the present application.

Example 15

Embodiment 15 illustrates a schematic diagram of a first timer according to one embodiment of the present application, as shown in fig. 15. In fig. 15, the horizontal axis identifies time, and the box filled with diagonal lines represents the time interval between when the first timer is started to when it is stopped; the blank box represents the remaining time of the first timer; the leftmost side of the diagonally filled box is the starting time of the first timer, and the rightmost side of the diagonally filled box is the stopping time of the first timer; the time interval between the leftmost side of the diagonally filled box and the rightmost side of the blank box is equal to the expiration value of the first timer.

In embodiment 15, starting a first timer with the third signaling; and stopping the first timer as a response to the act of receiving fourth signaling.

As an embodiment, the fourth signaling is received during the operation of the first timer.

As an embodiment, the first timer is an RRC layer timer.

As an embodiment, the first timer is a MAC layer timer.

As one embodiment, the first serving cell is considered to be detected as radio connection failure (Radio Link Failure, RLF) when the first timer expires.

As an embodiment, when the first timer expires, the cell group to which the first serving cell belongs is considered to be detected as radio connection failure (Radio Link Failure, RLF).

As one embodiment, the DAPS reconfiguration is aborted when the first timer expires.

As an embodiment, when the first timer expires, the MAC entity of the cell group to which the first serving cell belongs is reset.

As an embodiment, the connection of the first serving cell is released when the first timer expires.

As an embodiment, when the first timer expires, all DRBs in the cell group of the first serving cell are suspended.

As an embodiment, the act of starting the first timer comprises: the first timer is started (start).

As an embodiment, the act of starting the first timer comprises: and starting the first timer.

As one embodiment, the act of stopping the first timer comprises: the first timer does not continue to count.

As one embodiment, the act of stopping the first timer comprises: and stopping the first timer.

As an embodiment, the expiration of the first timer means that the running time of the first timer reaches an expiration value of the first timer.

As an embodiment, the expiration of the first timer means that the value of the first timer reaches the expiration value of the first timer.

As an embodiment, the expiration value of the first timer is configurable.

As an embodiment, the expiration value of the first timer is configured by an RRC message.

As one embodiment, the expiration value of the first timer comprises at least 1 millisecond.

Example 16

Embodiment 16 illustrates a schematic diagram of a first indication according to one embodiment of the present application, as shown in fig. 16.

As an embodiment, in response to the first condition being met, if the first bearer is configured, the RRC layer of the first node sends a first indication to a lower layer of the first node; the lower layer of the first node receives the first indication; the act of the lower layer of the first node receiving the first indication is used to trigger the third signaling.

As an embodiment, the first indication is transmitted inside the first node.

As an embodiment, the first indication is inter-layer signaling of the first node.

As an embodiment, the first indication is used to trigger the third signaling.

As an embodiment, the lower layer is a protocol layer below the RRC layer.

As an embodiment, the lower layer is a MAC layer.

As an embodiment, the lower layer is a physical layer.

As an embodiment, the RRC layer of the first node does not send the first indication to the lower layer of the first node as a response to the first condition being met if the first bearer is not configured.

As an embodiment, the phrase the act of the lower layer of the first node receiving the first indication is used to trigger the third signaling comprises: the third signaling is sent on the first serving cell in response to the lower layer of the first node receiving the first indication as the act.

As an embodiment, the phrase the act of the lower layer of the first node receiving the first indication is used to trigger the third signaling comprises: the third signaling is sent when the first indication is received by the lower layer of the first node.

Example 17

Embodiment 17 illustrates a wireless signal transmission flow diagram for conditional reconfiguration preparation according to one embodiment of the present application, as shown in fig. 7. It is specifically noted that the order in this example is not limiting of the order of signal transmission and the order of implementation in this application.

For the followingSecond node N02In step S17201, a third message is sent; in step S17202, a fourth message is received in response to the act of sending the third message.

For the followingThird node N03In step S17301, the third message is received; in step S17302, the fourth message is sent.

In embodiment 17, the third message includes an identification of the first candidate cell and a C-RNTI of the first node in the first serving cell; the third message is used to request a conditional reconfiguration; the fourth message includes at least a portion of the first configuration.

As an embodiment, the third message comprises a HANDOVER REQUEST message.

As an embodiment, the third message is used to request a conditional reconfiguration and a DAPS reconfiguration for at least the first bearer.

As an embodiment, the third message includes DAPS request information (Request Information).

As an embodiment, DAPS Indicator IE is included in the third message.

As a sub-embodiment of this embodiment, the DAPS Indicator is set to a DAPS HO required indication requesting a DAPS handoff.

As a sub-embodiment of this embodiment, the DAPS Indicator is set to DAPS CPC required to indicate that the DAPS CPC is requested.

As a sub-embodiment of this embodiment, the DAPS Indicator is set to DAPS Reconfiguration required to indicate that a DAPS reconfiguration is requested.

As an embodiment, conditional Handover Information Request IE is included in the third message.

As an embodiment, the third message includes a CHOinformation-Req.

As an embodiment, the third message includes a field, and a name of the field includes a cho-trigger.

As an embodiment, the third message includes a field, and the name of the field includes DAPSRequestInfo.

As an embodiment, the third message includes first information therein, the first information being used to request a DAPS reconfiguration for at least the first bearer.

As an embodiment, conditional Handover Information Acknowledge IE is included in the fourth message.

As an embodiment, the fourth message includes an IE, where the name of the IE is a CHOinformation-Ack.

As an embodiment, the fourth message includes a field, where the name of the field is a requestedTargetCellGlobalID.

As an embodiment, the fourth message includes a field, where maxCHOoperations are included in a name of the field.

As an embodiment, the fourth message includes an IE, and the name of the IE includes DAPSResponseInfo-List.

As an embodiment, the fourth message includes a field, and the name of the field includes DAPSResponseInfo-Item.

As an embodiment, the fourth message includes a field, and the name of the field includes drbhd.

As an embodiment, the fourth message includes a field, and the name of the field includes a dapsResponseBinder.

As an embodiment, the drbhd field in the fourth message is set to the DRB-ID of the first bearer.

As an embodiment, the fourth message includes a DAPS response message (Response Information).

As an embodiment, DAPS Response Information IE is included in the fourth message.

As an embodiment, the fourth message includes a DRB ID, where the DRB ID indicates the first bearer.

As an embodiment, DAPS Response Indicator is included in the fourth message.

As a sub-embodiment of this embodiment, the DAPS Response Indicator is set to DAPS HO accepted indicates that the requested DAPS handoff is accepted.

As a sub-embodiment of this embodiment, the DAPS Response Indicator is set to DAPS CPC required to indicate that the requesting DAPS CPC is accepted.

As a sub-embodiment of this embodiment, the DAPS Response Indicator is set to DAPS Reconfiguration required to indicate that the requested DAPS reconfiguration is accepted.

As an embodiment, the fourth message is a CHO response.

The fourth message, as one embodiment, comprises a HANDOVER (HO) REQUEST ACKNOWLEDGE message.

As an embodiment, the fourth message includes the first condition and the first configuration.

As an embodiment, the fourth message includes a configuration of the first candidate cell.

As an embodiment, the fourth message includes an RRC container (container).

As an embodiment, the HANDOVER REQUEST ACKNOWLEDGE message includes second information therein, which is used to indicate whether the DAPS reconfiguration for at least the first bearer is accepted.

As an embodiment, it is determined from the second information that the maintaining base station of the first candidate cell is a candidate target node of interest to the second node N02.

As an embodiment, the second information indicates that the DAPS reconfiguration for at least the first bearer is accepted to be used to determine that the maintaining base station of the first candidate cell is a candidate target node of interest to the second node N02.

As an embodiment, the first bearer is configured and the second information indicates that the DAPS reconfiguration for at least the first bearer is accepted to be used to determine that the maintaining base station of the first candidate cell is a candidate target node of interest to the second node N02.

As an embodiment, the act of "determining whether to send a second message based on at least whether the first bearer is configured" comprises: in response to receiving the second signaling, determining whether to send a second message based on whether the first bearer is configured and the second information.

As a sub-embodiment of this embodiment, if the first bearer is configured and the second information indicates that the DAPS reconfiguration for at least the first bearer is accepted, not sending the second message; if the first bearer is not configured and the second information indicates that the DAPS reconfiguration for at least the first bearer is not accepted, the second message is sent or not sent.

As a sub-embodiment of this embodiment, if the first bearer is configured and the second information indicates that the DAPS reconfiguration for at least the first bearer is accepted, sending the second message; if the first bearer is not configured and the second information indicates that the DAPS reconfiguration for at least the first bearer is not accepted, the second message is sent or not sent.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the application is not limited to any specific combination of software and hardware. User equipment, terminals and UEs in the present application include, but are not limited to, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control airplanes, aircraft, mini-planes, mobile phones, tablet computers, notebooks, vehicle-mounted communication devices, wireless sensors, network cards, internet of things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication ) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low cost mobile phones, low cost tablet computers, and other wireless communication devices. The base station or system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, a gNB (NR node B) NR node B, a TRP (Transmitter Receiver Point, transmitting and receiving node), and other wireless communication devices.

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

Claims

1. A first node for wireless communication, comprising:

2. The first node of claim 1, comprising:

the first receiver receives, in response to the act of transmitting third signaling, fourth signaling, the fourth signaling being used to acknowledge the third signaling.

3. The first node according to claim 1 or 2, wherein the third signaling is used to indicate that the first condition is met comprises: the third signaling is used to trigger a first message that is used to indicate PDCP SN and HFN of the target PDCP SDU; the target PDCP SDU is a first forwarded PDCP SDU of the first bearer.

4. A first node according to any of claims 1-3, characterized in that the third signaling is used to trigger the release of a given set of configurations, including at least one of a CA configuration, or a DC configuration, or a SUL configuration, or a multi-TRP configuration, or an EHC configuration, or a sidelink configuration.

5. The first node of claim 4, comprising:

the first receiver, accompanying the third signaling, releasing the given set of configurations; the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling is used to indicate that the given set of configurations is released.

6. The first node of claim 4, comprising:

the first receiver releasing the given set of configurations in response to the act of receiving fourth signaling; the phrase the third signaling is used to trigger release of a given set of configurations includes: the third signaling triggers the fourth signaling, which is used to command the release of the given set of configurations.

7. The first node according to any of claims 1 to 6, characterized in that if a second message is sent regarding whether at least a first bearer is configured, the second message is used to indicate PDCP SN and HFN of a given PDCP SDU, which is the first forwarded PDCP SDU of the first bearer, if the second message is sent, the second signaling is used to trigger the second message; whether the phrase second message is sent in relation to whether at least a first bearer is configured includes: if the first bearer is configured, the second message is not sent; the second message is sent or not sent if the first bearer is not configured.

8. The first node according to any of claims 1 to 6, characterized in that if a second message is sent regarding whether at least a first bearer is configured, the second message is used to indicate PDCP SN and HFN of a given PDCP SDU, which is the first forwarded PDCP SDU of the first bearer, if the second message is sent, the second signaling is used to trigger the second message; whether the phrase second message is sent in relation to whether at least a first bearer is configured includes: if the first bearer is configured, the second message is sent; the second message is sent or not sent if the first bearer is not configured.

9. The first node according to any of claims 1 to 8, comprising:

the first receiver receives a first data packet, the first data packet belongs to the first bearer, and the third signaling is used to trigger the first data packet.

10. The first node according to any of claims 1 to 9, comprising:

the first transmitter performing a synchronous reconfiguration procedure in accordance with the first configuration in response to the first condition being met;

11. A second node for wireless communication, comprising:

the second receiver receives a third signaling;

12. A third node for wireless communication, comprising:

a third receiver receiving a first message, third signaling being received for triggering transmission of the first message, the first message being used for indicating PDCP SN and HFN of a target PDCP SDU, the target PDCP SDU being a first forwarded PDCP SDU of a first bearer; or, receiving a second message, the second signaling being used to trigger the sending of the second message, the second message being used to indicate PDCP SN and HFN of a given PDCP SDU, the given PDCP SDU being the first forwarded PDCP SDU of the first bearer;

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

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

receiving a third signaling;

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