CN115278802B

CN115278802B - Method and apparatus in a communication node for wireless communication

Info

Publication number: CN115278802B
Application number: CN202110486727.5A
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: 2021-05-01
Filing date: 2021-05-01
Publication date: 2024-06-14
Anticipated expiration: 2041-05-01
Also published as: CN115278802A

Abstract

A method and apparatus in a communication node for wireless communication is disclosed. The communication node starts or restarts a first timer, the first timer being associated to a first TAG; receiving first signaling, wherein the first signaling is used for indicating a primary cell of a given cell group to change from a source cell to a target cell, and the source cell belongs to the first TAG; applying a first set of configurations; maintaining the first timer according to the state of the first node for the given cell group; when the state of the first node for the given cell group is a first state, the first node does not monitor control signaling at the given cell group, and continues to run the first timer as a response to receiving the first signaling; when the state of the first node for the given cell group is a second state, the first node monitors control signaling at the given cell group and, in response to receiving the first signaling, stops the first timer.

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 dual connection transmission method and apparatus.

Background

Release 17 supports an efficient SCG (Secondary Cell Group ) Activation/deactivation (De-Activation) mechanism for the "Multi-Radio Dual-Connectivity (MR-DC) Enhancements" Work Item (WI).

Disclosure of Invention

According to the present discussion, when a UE (User Equipment) is in an SCG deactivated state, it cannot monitor a PDCCH (Physical Downlink Control Channel ), when a timeAlignmentTimer expires, it is difficult to trigger a random access procedure to perform synchronization, and only when SCG is activated, it is possible to trigger a random access procedure to perform synchronization. When the SCG deactivation state performs PSCell (PRIMARY SCG CELL, SCG primary cell) change, a MAC (Medium Access Control ) reset needs to be triggered according to the existing protocol, which leads to expiration of the timeAlignmentTimer, when the SCG is activated, a random access procedure needs to be triggered first to acquire uplink synchronization, and for emergency services, such as MCGFailureIInformation messages, needs to be transmitted as soon as possible to restore the MCG link. Therefore, enhancement of the timeAlignmentTimer is required for the case where the PSCell change is performed for the SCG deactivation state.

The present application provides a solution to the above problems. In the description for the above problems, a DC (Dual Connectivity, dual connection) scenario is taken as an example; the application is equally applicable to scenarios such as IAB (INTEGRATED ACCESS AND backlight) or V2X (Vehicle-to-evaluation), achieving technical effects similar to those in DC scenarios. Furthermore, the adoption of a unified solution for different scenarios also helps to reduce hardware complexity and cost.

As an embodiment, the term (Terminology) in the present application is explained with reference 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 3GPP specification protocol TS38 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 explanation of terms in the present application refers to the definition of the specification protocol of IEEE (Institute of electrical and electronics engineers) ELECTRICAL AND Electronics Engineers.

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

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

Starting or restarting a first timer, the first timer being related to uplink synchronization, the first timer being associated to a first TAG; receiving first signaling, wherein the first signaling is used for indicating a primary cell of a given cell group to change from a source cell to a target cell, the source cell belongs to the first TAG, and the first signaling comprises a first configuration set; applying the first set of configurations; maintaining the first timer according to the state of the first node for the given cell group;

wherein when the state of the first node for the given cell group is a first state, the first node does not monitor control signaling at the given cell group; when the state of the first node for the given cell group is a second state, the first node monitors control signaling at the given cell group;

the act of maintaining the first timer in accordance with the state of the first node for the given cell group comprises:

continuing to run the first timer in response to receiving the first signaling when the state of the first node for the given cell group is the first state; the first timer is stopped as a response to receiving the first signaling when the state of the first node for the given cell group is the second state.

As one embodiment, when the state of the first node for the given cell group is the first state, continuing to run the first timer in response to receiving the first signaling; or stopping the first timer as a response to receiving the first signaling when the state of the first node for the given cell group is the second state.

As one embodiment, when the state of the first node for the given cell group is the first state, the first timer continues to run as a response to receiving the first signaling.

As one embodiment, the first timer is stopped in response to receiving the first signaling when the state of the first node for the given cell group is the second state.

As one embodiment, when the state of the first node for the given cell group is the first state, continuing to run the first timer in response to receiving the first signaling; and stopping the first timer as a response to receiving the first signaling when the state of the first node for the given cell group is the second state.

As one embodiment, the problems to be solved by the present application include: how to keep uplink synchronization during the handover process.

As one embodiment, the problems to be solved by the present application include: how to try to avoid performing a random access procedure when SCG is activated.

As one embodiment, the features of the above method include: the first timer is maintained according to a state of the first node for the given cell group.

As one embodiment, the features of the above method include: the first timer is maintained when the state of the first node for the given cell group is the first state.

As one embodiment, the features of the above method include: the first timer is not stopped if the first timer is running when the state of the first node for the given cell group is the first state.

As one example, the benefits of the above method include: avoiding performing a random access procedure upon SCG activation.

As one example, the benefits of the above method include: the SCG resumes uplink transmission as soon as possible upon activation.

As one example, the benefits of the above method include: in the SCG deactivated state, the uplink synchronization is kept as much as possible.

According to one aspect of the application, the first timer continues to run only if both the target cell and the source cell belong to the first TAG; wherein the state of the first node for the given cell group is the first state.

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

Resetting the MAC entity associated with the given cell group in response to receiving the first signaling;

Wherein when the state of the first node for the given cell group is the first state, the behavior resets the MAC entity associated with the given cell group not to include the behavior to stop the first timer; the act of resetting the MAC entity associated with the given cell group includes the act of stopping the first timer when the state of the first node for the given cell group is the second state.

When the state of the first node for the given cell group is the first state, in response to receiving the first signaling, relinquishing resetting the MAC entity associated with the given cell group, the act of relinquishing resetting the MAC entity associated with the given cell group including the act of continuing to run the first timer; when the state of the first node for the given cell group is the second state, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group, the act resetting the MAC entity associated with the given cell group including the act stopping the first timer.

Sending a second signaling, wherein the second signaling is triggered by the first signaling;

Wherein the second signaling is used to determine that the RRC connection reconfiguration for the given cell group is complete.

In response to the behavior applying the first set of configurations, starting a second timer;

Wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

According to an aspect of the application, it is characterized in that said behaviour of said first node for said given group of cells is that the start of a second timer is performed only after the latter of said first and second states.

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

Transmitting first signaling, wherein the first signaling is used for indicating a primary cell of a given cell group to change from a source cell to a target cell, the source cell belongs to a first TAG, and the first signaling comprises a first configuration set;

Wherein a first timer is started or restarted, the first timer being related to uplink synchronization, the first timer being associated to the first TAG; the first set of configurations is applied; the first timer is maintained for the state of the given cell group according to the recipient of the first signaling; when the state of the recipient of the first signaling for the given cell group is a first state, the recipient of the first signaling does not monitor control signaling at the given cell group; when the state of the receiver of the first signaling for the given cell group is a second state, the receiver of the first signaling monitors control signaling at the given cell group; the act of maintaining the first timer in accordance with a state of a recipient of the first signaling for the given cell group includes: when the state of the recipient of the first signaling for the given cell group is the first state, the first timer is continued to run as a response to the first signaling being received; when the state of the recipient of the first signaling for the given cell group is the second state, the first timer is stopped as a response to the first signaling being received.

According to one aspect of the application, the first timer continues to run only if both the target cell and the source cell belong to the first TAG; wherein the state of a receiver of the first signaling for the given cell group is the first state.

According to an aspect of the application, characterized in that, as a response to the first signaling being received, the MAC entity associated to the given cell group is reset; wherein when the state of the recipient of the first signaling for the given cell group is the first state, the MAC entity of the behavior associated with the given cell group is reset excluding the behavior, the first timer is stopped; when the state of the recipient of the first signaling for the given cell group is the second state, the act of the MAC entity associated with the given cell group being reset includes the act of the first timer being stopped.

According to an aspect of the application, when the state of the recipient of the first signaling for the given cell group is the first state, as a response to the first signaling being received, the MAC entity associated to the given cell group is relinquished to reset, and the act of the MAC entity associated to the given cell group being relinquished to reset includes the act of the first timer being continued to run; when the state of the recipient of the first signaling for the given cell group is the second state, as a response to the first signaling being received, the MAC entity associated with the given cell group is reset, and the act of the MAC entity associated with the given cell group being reset includes the act of the first timer being stopped.

Receiving second signaling, wherein the second signaling is triggered by the first signaling;

According to one aspect of the application, the second timer is started in response to the first set of configurations being applied; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

According to an aspect of the application, it is characterized in that said behaviour of the recipient of said first signalling for said given group of cells is that the latter of said first state and said second state, said second timer, is started before being executed.

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

a first receiver to start or restart a first timer, the first timer relating to uplink synchronization, the first timer being associated with a first TAG; receiving first signaling, wherein the first signaling is used for indicating a primary cell of a given cell group to change from a source cell to a target cell, the source cell belongs to the first TAG, and the first signaling comprises a first configuration set; applying the first set of configurations; maintaining the first timer according to the state of the first node for the given cell group;

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

a second transmitter that transmits first signaling used to instruct a primary cell of a given cell group to change from a source cell to a target cell, the source cell belonging to a first TAG, the first signaling comprising a first set of configurations;

As an embodiment, the present application has the following advantages over the conventional scheme:

avoiding performing a random access procedure upon SCG activation;

-resuming uplink transmissions as soon as possible upon SCG activation;

in SCG deactivated state, try to keep uplink synchronization.

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 the transmission of a first signaling according to an embodiment of the application;

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

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

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

fig. 6 shows a schematic diagram of a target cell and a source cell both belonging to a first TAG being used to determine that a first timer continues to run according to an embodiment of the present application;

FIG. 7 illustrates a schematic diagram of resetting a MAC entity associated with a given cell group that does not include stopping a first timer, according to one embodiment of the application;

FIG. 8 illustrates a schematic diagram of a discard reset associated with a MAC entity of a given cell group including continuing to run a first timer in accordance with an embodiment of the application;

FIG. 9 shows a schematic diagram of a first node simultaneously connecting with a second class of nodes and a third class of nodes according to one embodiment of the application;

FIG. 10 shows a block diagram of a processing arrangement for use in a first node according to an embodiment of the application;

fig. 11 shows a block diagram of a processing arrangement for use in a second node according to an embodiment of the application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of the transmission of a first signaling according to an embodiment of the 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 starts or restarts a first timer in step 101, the first timer being related to uplink synchronization, the first timer being associated to a first TAG; receiving first signaling, wherein the first signaling is used for indicating a primary cell of a given cell group to change from a source cell to a target cell, the source cell belongs to the first TAG, and the first signaling comprises a first configuration set; applying the first set of configurations; maintaining the first timer according to the state of the first node for the given cell group; wherein when the state of the first node for the given cell group is a first state, the first node does not monitor control signaling at the given cell group; when the state of the first node for the given cell group is a second state, the first node monitors control signaling at the given cell group; the act of maintaining the first timer in accordance with the state of the first node for the given cell group comprises: continuing to run the first timer in response to receiving the first signaling when the state of the first node for the given cell group is the first state; the first timer is stopped as a response to receiving the first signaling when the state of the first node for the given cell group is the second state.

In one embodiment, the first timer is started or restarted in response to receiving a cross-layer indication.

As a sub-embodiment of this embodiment, the one cross-layer indication is used to determine to start or restart the first timer.

As a sub-embodiment of this embodiment, when a RRCResume message or RRCConnectionResume message is received, the RRC layer of the first node sends the one cross-layer indication to the MAC layer of the first node.

As a sub-embodiment of this embodiment, when a RRCSetup message or RRCConnectionSetup message is received, the RRC layer of the first node sends the one cross-layer indication to the MAC layer of the first node.

As an embodiment, the first timer is started or restarted in response to receiving an RRC message.

As a sub-embodiment of this embodiment, the one RRC message is used to determine NTA of the first TAG.

As a sub-embodiment of this embodiment, NTA of the first TAG is indicated in the one RRC message.

As a sub-embodiment of this embodiment, the one RRC message is used to configure uplink resources.

As an embodiment, the first timer is started or restarted in response to receiving a MAC CE (Control Element).

As a sub-embodiment of this embodiment, the one MAC CE includes TIMING ADVANCE Command MAC CEs.

As a sub-embodiment of this embodiment, the one MAC CE includes an Absolute TIMING ADVANCE Command MAC CE.

As a sub-embodiment of this embodiment, the one MAC CE includes TIMING DELTA MAC CE.

In one embodiment, the first timer is started or restarted in response to receiving a TIMING ADVANCE Command.

As a sub-embodiment of this embodiment, the TIMING ADVANCE Command field in one MAC PDU (Protocol Data Unit ) indicates the one TIMING ADVANCE Command.

As a sub-embodiment of this embodiment, a TIMING ADVANCE Command field in a MAC RAR (random access response ) indicates the one TIMING ADVANCE Command.

As a sub-embodiment of this embodiment, the TIMING ADVANCE Command field in one fallbackRAR indicates the one TIMING ADVANCE Command.

As a sub-embodiment of this embodiment, the TIMING ADVANCE Command field in one successRAR indicates the one TIMING ADVANCE Command.

As a sub-embodiment of this embodiment, the TIMING ADVANCE Command is received at the physical layer.

As a sub-embodiment of this embodiment, the TIMING ADVANCE Command is indicated by DCI.

As an embodiment, the act of starting or restarting the first timer comprises: and if the first timer is not running, starting (start) the first timer.

As an embodiment, the act of starting or restarting the first timer comprises: restarting (restart) the first timer if the first timer is running.

As an embodiment, the act of starting the first timer comprises: the first timer counts from 0.

As an embodiment, the act of starting the first timer comprises: the first timer is started.

As an embodiment, the act of restarting the first timer includes: the first timer is cleared and the first timer starts counting from 0.

As an embodiment, the act of restarting the first timer includes: the first timer restarts counting.

As an embodiment, the act of restarting the first timer includes: setting the timing of the first timer to zero, and starting the first timer.

As one embodiment, the phrase that the first timer is related to uplink synchronization includes: the first timer is used to indicate whether L1 is synchronized.

As one embodiment, the phrase that the first timer is related to uplink synchronization includes: l1 is considered synchronized when the first timer is running, and L1 is considered unsynchronized when the first timer is not running.

As one embodiment, the phrase that the first timer is related to uplink synchronization includes: the first timer is used for how long the MAC entity considers the uplink time of the serving cell belonging to the TAG associated to the one timer to be aligned.

As one embodiment, the phrase that the first timer is related to uplink synchronization includes: during the operation of the first timer, the MAC entity considers the uplink time of the serving cell belonging to the first TAG to be aligned.

As one embodiment, the phrase that the first timer is related to uplink synchronization includes: the first timer is used to maintain uplink time alignment (TIME ALIGNMENT).

As an embodiment, the first timer comprises a timer (timer).

As an embodiment, the first timer comprises a MAC layer timer.

As an embodiment, the first timer includes a PHY (Physical) layer timer.

As an embodiment, the first timer includes a timeAlignmentTimer.

As an embodiment, the first timer includes a TAT (TIMING ALIGNMENT TIMER ).

As one embodiment, the phrase that the first timer is associated to a first TAG comprises: the first timer is a timer specific to the TAG (TAG-SPECIFIC TIMER).

As one embodiment, the phrase that the first timer is associated to a first TAG comprises: the first timer is valid for all serving cells in the first TAG.

As an embodiment, the first TAG includes TIMING ADVANCE groups.

As an embodiment, the first TAG includes TIME ALIGNMENT groups.

As an embodiment, the first TAG is one PTAG (primary TAG).

As an embodiment, the primary cell of the given cell group is included in the first TAG.

As an embodiment, the source cell is included in the first TAG.

As an embodiment, the first TAG is configured by an RRC message.

As an embodiment, the first TAG is configured by a TAG-Config IE in an RRC message.

As an example, the first TAG is associated with a TAG identification (TAG-Id).

As an embodiment, the TAG identification of the first TAG is equal to 0.

As an embodiment, the first TAG is associated to the given cell group.

As an embodiment, the first TAG is one TAG in the given cell group.

As an embodiment, the first TAG is configured in the given cell group.

As an embodiment, the serving cell in the MCG is not included in the first TAG.

As an embodiment, the first TAG does not include a serving cell belonging only to the MCG.

As an embodiment, the first TAG includes a serving cell belonging to both the MCG and the given cell group.

As an embodiment, the meaning that the source cell belongs to the first TAG includes: the source cell is included in the first TAG.

As an embodiment, the meaning that the source cell belongs to the first TAG includes: the source cell is one of the first TAGs.

As an embodiment, the meaning that the source cell belongs to the first TAG includes: at least the source cell is included in the first TAG.

As an embodiment, only the source cell is included in the first TAG.

As an embodiment, the first TAG includes at least the source cell and another cell.

As an embodiment, the target cell is included in the first TAG.

As an embodiment, the target cell is not included in the first TAG.

As an embodiment, only the source cell and the target cell are included in the first TAG.

As an embodiment, the first TAG includes at least the source cell and the target cell.

As an embodiment, the expiration value of the first timer is configurable.

As an embodiment, the expiration value of the first timer is preconfigured.

As an embodiment, the expiration value of the first timer is configured by a field in a TAG-Config IE.

As an embodiment, the expiration value of the first timer is configured by a field in MAC-CellGroupConfig IE.

As an embodiment, the expiration value of the first timer is configured by TIMEALIGNMENTTIMER fields.

As an embodiment, the expiration value of the first timer comprises at least one millisecond.

As an embodiment, the expiration value of the first timer is no greater than 10240ms.

As an embodiment, the expiration value of the first timer is infinity (infinity).

As an embodiment, the expiration value of the first timer is not greater than 102400ms.

As an embodiment, the given cell group is a secondary cell group (Secondary Cell Group, SCG).

As an embodiment, the given cell group comprises at least one special cell (SPECIAL CELL, SPCELL).

As an embodiment, the given Cell group includes at least one Secondary Cell (SCell).

As one embodiment, the given cell group includes at least PSCell (Primary SCG Cell).

As an embodiment, the given cell group includes at least one SCell therein.

As an embodiment, scells are not included in the given cell group.

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

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

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 comprises an RRC Message (Message).

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

As an embodiment, the first signaling is one RRC message of one RRC message.

For one embodiment, the first signaling includes at least one Field (Field) in an RRC message.

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

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

As an embodiment, the logical channel of the first signaling includes 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.

As an embodiment, the first signaling is RRCReconfiguration messages.

As an embodiment, the first signaling is RRCConnectionReconfiguration messages.

As an embodiment, the first signaling includes DLInformationTransferMRDC messages.

As an embodiment, the first signaling includes at least one IE in RRCReconfiguration message or RRCConnectionReconfiguration message.

As an embodiment, the first signaling includes at least one field of RRCReconfiguration messages or RRCConnectionReconfiguration messages.

As an embodiment, the first signaling is one RRCReconfiguration message of RRCReconfiguration messages.

As an embodiment, the first signaling is one RRCReconfiguration message of RRCConnectionReconfiguration messages.

As an embodiment, the first signaling is one RRCConnectionReconfiguration message of RRCConnectionReconfiguration messages.

As an embodiment, the first signaling is one RRCConnectionReconfiguration message of RRCReconfiguration messages.

As an embodiment, the first signaling is one RRCReconfiguration message of DLInformationTransferMRDC messages.

As an embodiment, the first signaling is one RRCConnectionReconfiguration message of DLInformationTransferMRDC messages.

As an embodiment, the first signaling is one RRC message, which is received in another RRC message.

As a sub-embodiment of this embodiment, the one RRC message is one of RRCReconfiguration messages or RRCConnectionReconfiguration messages.

As a sub-embodiment of this embodiment, the further RRC message is one of DLInformationTransferMRDC or RRCReconfiguration message or RRCConnectionReconfiguration message.

As an embodiment, the phrase that the one RRC message is received in another RRC message means that: the other RRC message is used to communicate the one RRC message.

As an embodiment, the further RRC message is an RRC container (container).

As an embodiment, the first signaling is one RRC message, which is not included in another RRC message.

As an embodiment, the first signaling includes at least reconfigurationWithSync fields.

As an embodiment, the first signaling includes at least MobilityControlInfoSCG fields.

As an embodiment, cellGroupConfig IE is included in the first signaling.

As an embodiment, the first signaling comprises a command (command) to modify an RRC (Radio Resource Control ) connection (modify an RRC connection).

As a sub-embodiment of this embodiment, the first signaling comprises RRCReconfiguration messages.

As a sub-embodiment of this embodiment, the first signaling comprises RRCConnectionReconfiguration messages.

As a sub-embodiment of this embodiment, the phrase that the first signaling includes a command to modify an RRC connection includes: the first signaling is a command to modify an RRC connection.

As a sub-embodiment of this embodiment, the phrase that the first signaling is a command to modify an RRC connection includes: THE FIRST SIGNALLING IS THE command to modify an RRC connection.

As an embodiment, the phrase that the first signaling is used to instruct a primary cell of a given cell group to change from a source cell to a target cell includes: the first node determines to change the primary cell of the given cell group from the source cell to the target cell according to the first signaling.

As an embodiment, the phrase that the first signaling is used to instruct a primary cell of a given cell group to change from a source cell to a target cell includes: the first signaling is used to configure the primary cell of the given cell group to change from the source cell to the target cell.

As an embodiment, the phrase that the primary cell of a given cell group is changed from the source cell to the target cell includes: the master cell group.

As an embodiment, the primary cell of the given cell group is a SpCell.

As one embodiment, the primary cell of the given cell group is a PSCell.

As an embodiment, the source cell is a source primary cell in the given cell group.

As one embodiment, the Source cell is a Source (Source) PSCell.

As one embodiment, the target cell is a target primary cell in the given cell group.

As one embodiment, the Target cell is a Target (Target) PSCell.

As an embodiment, the phrase the first signaling includes a first set of configurations including: at least one domain in the first signaling is used to configure a configuration in the first set of configurations.

As an embodiment, the phrase the first signaling includes a first set of configurations including: the first signaling is used to configure the first configuration set.

As an embodiment, the phrase the first signaling includes a first set of configurations including: the first signaling indicates the first set of configurations.

As an embodiment, the phrase the first signaling includes a first set of configurations including: at least one field in the first signaling indicates the first set of configurations.

As an embodiment, the phrase the first signaling includes a first set of configurations including: and configuring the target cell according to the configuration in the first configuration set.

As an embodiment, the first set of configurations comprises at least one configuration.

As an embodiment, the first configuration set includes PHY layer (PHYSICAL LAYER ) configurations therein.

As an embodiment, the first configuration set includes a MAC (Medium Access Control ) layer configuration.

As an embodiment, the first configuration set includes RLC (Radio Link Control, radio link layer control protocol) layer configurations.

As an embodiment, the first configuration set includes PDCP (PACKET DATA Convergence Protocol ) layer configurations.

As an embodiment, the first configuration set includes radio resource configurations.

As an embodiment, the first configuration set includes radio bearer configurations.

As an embodiment, the first configuration set includes radio link measurement configurations.

As an embodiment, at least one IE in the first signaling indicates the first configuration set.

As an embodiment, at least one field in the first signaling indicates the first set of configurations.

As an embodiment, IE ServingCellConfigCommon of the first signaling is used to configure a portion of the configurations in the first set of configurations.

As an embodiment, IE DownlinkConfigCommon of the first signaling is used to configure a portion of the configurations in the first set of configurations.

As an embodiment, IE UplinkConfigCommon of the first signaling is used to configure a portion of the configurations in the first set of configurations.

As an embodiment, PHYSCELLID of the first signaling is used to configure a portion of the configurations in the first set of configurations.

As an embodiment, IE FrequencyInfoDL of the first signaling is used to configure a portion of the configurations in the first set of configurations.

As an embodiment, the IE BWP-DownlinkCommon in the first signaling is used to configure part of the configuration in the first configuration set.

As an embodiment, the IE BWP in the first signaling is used to configure a partial configuration in the first configuration set.

As an embodiment, IE SubcarrierSpacing of the first signaling is used to configure a portion of the configurations in the first set of configurations.

As an embodiment, the first signaling indicates an expiration value of the second timer in the present application.

As an embodiment, the phrase that the primary cell of a given cell group is changed from the source cell to the target cell includes: the PSCell of the network control (Network Controled) changes.

As a sub-embodiment of this embodiment, the application of the first set of configurations is started when the first signaling is received.

As a sub-embodiment of this embodiment, the first set of configurations is applied as soon as possible when the first signaling is received.

As a sub-embodiment of this embodiment, when the first signaling is received, the first set of configurations is applied before confirming that the first message was received correctly (HARQ or ARQ).

As an embodiment, the phrase that the primary cell of a given cell group is changed from the source cell to the target cell includes: conditional PSCell change (Conditional PSCELL CHANGE, CPC).

As a sub-embodiment of this embodiment, the first node receives the first signaling, the first signaling comprising an execution condition, and when the one execution condition is met, starts to apply the first set of configurations.

As a sub-embodiment of this embodiment, when the first signaling is received, the application of the first set of configurations can only be started if the one execution condition is met.

As a sub-embodiment of this embodiment, the one execution condition is configured by condExecutionCond fields in one RRC message.

As an auxiliary embodiment of this sub-embodiment, the one RRC message includes a CondReconfigToAddMod domain, and the CondReconfigToAddMod domain includes the condExecutionCond domain.

As an subsidiary embodiment of this sub-embodiment, said one RRC message includes said first condition and said first set of configurations.

As an auxiliary embodiment of this sub-embodiment, the one RRC message includes a CondReconfigToAddMod field, a condExecutionCond field and a condRRCReconfig field in the CondReconfigToAddMod field, the condExecutionCond field indicates the one execution condition, and the condRRCReconfig field includes the first signaling.

As a sub-embodiment of this embodiment, the one execution condition is configured by triggerCondition fields in one RRC message.

As an auxiliary embodiment of this sub-embodiment, the one RRC message includes a CondReconfigurationAddMod domain, and the CondReconfigurationAddMod domain includes the triggerCondition domain.

As an auxiliary embodiment of this sub-embodiment, the one RRC message includes a CondReconfigurationAddMod field, a triggerCondition field and a condReconfigurationToApply field in the CondReconfigurationAddMod field, the triggerCondition field indicates the one execution condition, and the condReconfigurationToApply field includes the first signaling.

As a sub-embodiment of this embodiment, the one execution condition is associated to one measurement identity (MeasId).

As a sub-embodiment of this embodiment, the one execution condition includes an A3 event (event) or an A5 event.

As an embodiment, the act of applying the first set of configurations includes: execute a reconfiguration with sync.

As an embodiment, the act of applying the first set of configurations includes: the configuration in reconfigurationWithSync is used.

As an embodiment, the act of applying the first set of configurations includes: a downlink (start synchronising to the DL of THE TARGET CELL) to the target cell is started.

As an embodiment, the act of applying the first set of configurations includes: the dedicated BCCH configuration of the target cell is applied according to section 9.1.1.1 in 3gpp TS 38.331 (APPLY THE SPECIFIED BCCH configuration for THE TARGET CELL).

As an embodiment, MIB (acquire the MIB of THE TARGET CELL) of the target cell is obtained according to 3gpp TS 38.213.

As an embodiment, a value newUE-Identity is applied as the C-RNTI (apply the value of the newUE-IDENTITY AS THE C-RNTI for THE TARGET CELL) of the target cell.

As one embodiment, the lower layer (configure lower layers in accordance WITH THE RECEIVED spCellConfigCommon) is configured according to the received spCellConfigCommon.

As one embodiment, the lower layers are configured according to their additional domains not included in the above configuration in received reconfigurationWithSync (configure lower layers in accordance with any additional fields,not covered in the previous,if included in the received reconfigurationWithSync).

As an embodiment, when the state of the first node for the given cell group is the first state, the act of applying the first set of configurations does not comprise triggering a random access procedure at the target cell.

As an embodiment, when the state of the first node for the given cell group is the first state, the act of applying the first set of configurations does not comprise performing a random access procedure at the target cell.

As an embodiment, when the state of the first node for the given cell group is the first state, the act of applying the first set of configurations comprises triggering a random access procedure at the target cell.

As an embodiment, when the state of the first node for the given cell group is the first state, the act of applying the first set of configurations comprises performing a random access procedure at the target cell.

As one embodiment, the monitoring means includes searching.

As an embodiment, the monitoring means includes monitoring (monitor).

As an embodiment, the monitoring means comprises checking by CRC (Cyclic Redundancy Check ).

As an embodiment, the control signaling refers to PDCCH.

As an embodiment, the control signaling refers to DCI.

As an embodiment, the control signaling refers to a PDCCH associated to a C-RNTI (Cell Radio Network Temporary Identifier, cell radio network temporary identity).

As an embodiment, the control signaling refers to a PDCCH associated to a C-RNTI of the target cell.

For one embodiment, the control signaling refers to USS (UE SPECIFIC SEARCH SPACE, UE dedicated search space).

As an embodiment, the control signaling refers to CSS (Common SEARCH SPACE ).

As an embodiment, the control signaling refers to physical layer signaling used for uplink resource indication.

As an embodiment, the control signaling refers to physical layer signaling used for downlink resource indication.

As an embodiment, the control signaling does not include a downlink measurement signal.

As an embodiment, the control signaling does not include measurement signals used for Radio link management (Radio LIKE MANAGEMENT, RLM).

As an embodiment, the control signaling does not include measurement signals used for beam failure monitoring (Beam Failure Detection, BFD).

As an embodiment, the behavior monitoring control signaling includes: and determining whether the control signaling exists through energy monitoring.

As an embodiment, the behavior monitoring control signaling includes: and determining whether the control signaling exists through coherent detection.

As an embodiment, the behavior monitoring control signaling includes: and determining whether the control signaling exists through broadband detection.

As an embodiment, the behavior monitoring control signaling includes: and determining whether the control signaling exists through correlation detection.

As an embodiment, the behavior monitoring control signaling includes: and determining whether the control signaling exists through synchronous detection.

As an embodiment, the behavior monitoring control signaling includes: and determining whether the control signaling exists through waveform detection.

As an embodiment, the behavior monitoring control signaling includes: and determining whether the control signaling exists or not through maximum likelihood detection.

As an embodiment, the behavior monitoring control signaling includes: a PDCCH (Physical Downlink Control Channel ) is monitored to determine if there is a PDCCH transmission scrambled by a C-RNTI of the target cell, the PDCCH transmission including DCI (Downlink Control Information ).

As one embodiment, the first node receives a downlink measurement signal for the given cell group when the state of the first node for the given cell group is the first state.

As one embodiment, the first node receives a measurement signal for the given cell group that is used for RLM when the state of the first node for the given cell group is the first state.

As one embodiment, the first node receives a measurement signal for the given cell group that is used for BFD when the state of the first node for the given cell group is the first state.

As one embodiment, when the state of the first node for the given cell group is the first state, the first node has no PUSCH transmission on the given cell group.

As one embodiment, when the state of the first node for the given cell group is the first state, the first node does not listen for PDCCH transmissions on the given cell group.

As one embodiment, when the state of the first node for the given cell group is the first state, the first node does not support SCell dormancy in the given cell group on the given cell group (dormancy).

As one embodiment, the first node is in an RRC CONNECTED (rrc_connected) state for a Master Cell Group (MCG) when the state of the first node for the given cell group is the first state.

As one embodiment, when the state of the first node for the given cell group is the first state, the first node is suspended for SRB3 in the given cell group.

As one embodiment, when the state of the first node for the given cell group is the first state, the first node is suspended for split SRB1 in the given cell group.

As one embodiment, the first node receives a downlink measurement signal for the given cell group when the state of the first node for the given cell group is the second state.

As one embodiment, the first node receives a measurement signal for the given cell group that is used for RLM when the state of the first node for the given cell group is the second state.

As one embodiment, the first node receives a measurement signal for the given cell group that is used for BFD when the state of the first node for the given cell group is the second state.

As one embodiment, the first node allows PUSCH transmissions on the given cell group when the state of the first node for the given cell group is the second state.

As one embodiment, the first node is allowed to listen for PDCCH transmissions on the given cell group when the state of the first node for the given cell group is the second state.

As one embodiment, when the state of the first node for the given cell group is the second state, the first node supports SCell dormancy in the given cell group on the given cell group (dormancy).

As one embodiment, the first node is in an RRC CONNECTED (rrc_connected) state for a Master Cell Group (MCG) when the state of the first node for the given cell group is the second state.

As one embodiment, when the state of the first node for the given cell group is the second state, the first node is not suspended for at least one of SRB3 or split SRB1 in the given cell group.

As one embodiment, the phrase maintaining the first timer according to the state of the first node for the given cell group comprises: the state of the first node for the given cell group is used to determine how to handle the first timer.

As one embodiment, the phrase maintaining the first timer according to the state of the first node for the given cell group comprises: how the first timer is maintained relates to the state of the first node for the given cell group.

As an embodiment, the first timer is maintained according to a state of the first node for the given cell group in response to the behavior applying the first set of configurations.

As an embodiment, the first timer is maintained according to a state of the first node for the given cell group in response to applying one of the first set of configurations.

As one embodiment, the first timer is maintained during application of the first configuration set according to the state of the first node for the given cell group.

As one embodiment, the first timer is maintained during operation of the second timer according to the state of the first node for the given cell group.

As one embodiment, the first timer is maintained according to the state of the first node for the given cell group when synchronizing to the downlink of the target cell.

As an embodiment, the first timer is maintained according to the state of the first node for the given cell group when applying the dedicated BCCH configuration of the target cell according to section 9.1.1.1 in 3gpp TS 38.331.

As an embodiment, when obtaining the MIB of the target cell according to 3gpp TS 38.213, the first timer is maintained according to the state of the first node for the given cell group.

As an embodiment, the first timer is maintained according to the state of the first node for the given cell group before applying newUE-Identity values as the C-RNTI of the target cell.

As one embodiment, the first timer is maintained according to the state of the first node for the given cell group before configuring lower layers according to received spCellConfigCommon.

As one embodiment, the act of maintaining the first timer comprises: and continuing to run the first timer or stopping the first timer.

As one embodiment, the act of stopping the first timer comprises: the first timer is not continuously run.

As one embodiment, the act of stopping the first timer comprises: the first timer is stopped and the first timer is deemed to expire (consider THE FIRST TIMER AS expire).

As one embodiment, the act of stopping the first timer comprises: the first timer is stopped and all TIMEALIGNMENTTIMERS associated with the given cell group are deemed to expire.

As one embodiment, the act of stopping the first timer comprises: setting a value of the first timer to the expiration value of the first timer.

As one embodiment, the act of stopping the first timer comprises: in response to the act of stopping the first timer, the first timer is deemed to expire.

As one embodiment, the act of considering that the first timer expires includes: the timer of the first timer does not reach the expiration value of the first timer.

As one embodiment, the act of considering that the first timer expires includes: and the first timer is considered to expire to execute the same action as the expiration of the first timer.

As an embodiment, all HARQ buffers (flush all HARQ buffers for ALL SERVING CELLS) of all serving cells are flushed in response to the behaviour thinking that the first timer has expired.

As an embodiment, in response to the behavior regarding expiration of the first timer, if PUCCH is configured, the RRC is notified to release PUCCHs of all serving cells (notify RRC to release PUCCH for ALL SERVING CELLS, if configured).

As an embodiment, in response to the behavior regarding expiration of the first timer, the RRC is notified to release SRS for all serving cells if SRS is configured (notify RRC to RELEASE SRS for ALL SERVING CELLS, if configured).

As one embodiment, any configuration downlink assignments and configuration uplink grants are cleared (clear any configured downlink ASSIGNMENTS AND configured uplink grants) in response to the behavior deems the first timer expired.

As an embodiment, any PUSCH resources for semi-persistent CSI reporting are cleared (clear any PUSCH resource for semi-PERSISTENT CSI reporting) in response to the behavior deeming the first timer expired.

As an embodiment, in response to the act of considering that the first timer has expired, the other running TIMEALIGNMENTTIMERS of the given cell group is considered to have expired.

As an example, NTA (MAINTAIN NTA of all TAGs) of all TAGs is maintained in response to the behavior regarding expiration of the first timer.

As one embodiment, the act of stopping the first timer comprises: stopping all the timers of the first type.

As one embodiment, the act of stopping the first timer comprises: stopping all running timers of the first type.

As one embodiment, the act of stopping the first timer comprises: the first timer is stopped and the first timer is deemed to expire.

As one embodiment, the act of stopping the first timer comprises: all running timers of the first type are stopped and all timers of the first type are considered to expire.

As an embodiment, the act of continuing to run the first timer includes: and continuing to run all the timers of the first type.

As an embodiment, the act of continuing to run the first timer includes: and continuing to run all running timers of the first type.

As an embodiment, the act of continuing to run the first timer includes: continuing to run the first timer and stopping all of the first type timers other than the first timer.

As an embodiment, the act of continuing to run the first timer includes: continuing to run the first timer and stopping all running timers of the first type except the first timer.

As an embodiment, the act of continuing to run the first timer includes: continuing to run the first timer and stopping all running timers of the first type except the first timer and considering that all timers of the first type except the first timer expire.

As one embodiment, during the act of applying the first set of configurations, when the state of the first node for the given cell group is the first state, the first timer continues to run in response to receiving the first signaling.

As an embodiment, when the state of the first node for the given cell group is the first state, the act of continuing to run the first timer is related to whether the target cell belongs to the first TAG.

As an embodiment, when the state of the first node for the given cell group is the first state, the act continues to run the first timer irrespective of whether the target cell belongs to the first TAG.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to one embodiment of the 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/EPS200 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) 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 disclosure 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, serving gateway)/UPF (User Plane Function, user plane functions) 212 and P-GW (PACKET DATE 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 remains connected to both the node 203 and the node 204.

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 node 203 corresponds to the second node in the present application.

As an embodiment, the node 203 is a Base Station (BS).

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.

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 embodiment, the node 204 corresponds to the fourth 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 example, the node 204 is a relay.

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

As one embodiment, the user equipment supports transmission of a terrestrial network (Non-TERRESTRIAL NETWORK, NTN).

As one 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 includes 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 device comprises an 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 comprises a relay.

As an embodiment, the relay comprises an L3 relay.

As one embodiment, the relay comprises an L2 relay.

As an embodiment, the relay comprises a router.

As an embodiment, the relay comprises a switch.

As an embodiment, the relay comprises a user equipment.

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

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the 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 architecture in fig. 3 is applicable to the fourth node in the present application.

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.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the 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 first communication device 450, a 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: starting or restarting a first timer, the first timer being related to uplink synchronization, the first timer being associated to a first TAG; receiving first signaling, wherein the first signaling is used for indicating a primary cell of a given cell group to change from a source cell to a target cell, the source cell belongs to the first TAG, and the first signaling comprises a first configuration set; applying the first set of configurations; maintaining the first timer according to the state of the first node for the given cell group; wherein when the state of the first node for the given cell group is a first state, the first node does not monitor control signaling at the given cell group; when the state of the first node for the given cell group is a second state, the first node monitors control signaling at the given cell group; the act of maintaining the first timer in accordance with the state of the first node for the given cell group comprises: continuing to run the first timer in response to receiving the first signaling when the state of the first node for the given cell group is the first state; the first timer is stopped as a response to receiving the first signaling when the state of the first node for the given cell group is the second state.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: starting or restarting a first timer, the first timer being related to uplink synchronization, the first timer being associated to a first TAG; receiving first signaling, wherein the first signaling is used for indicating a primary cell of a given cell group to change from a source cell to a target cell, the source cell belongs to the first TAG, and the first signaling comprises a first configuration set; applying the first set of configurations; maintaining the first timer according to the state of the first node for the given cell group; wherein when the state of the first node for the given cell group is a first state, the first node does not monitor control signaling at the given cell group; when the state of the first node for the given cell group is a second state, the first node monitors control signaling at the given cell group; the act of maintaining the first timer in accordance with the state of the first node for the given cell group comprises: continuing to run the first timer in response to receiving the first signaling when the state of the first node for the given cell group is the first state; the first timer is stopped as a response to receiving the first signaling when the state of the first node for the given cell group is the second state.

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, wherein the first signaling is used for indicating a primary cell of a given cell group to change from a source cell to a target cell, the source cell belongs to a first TAG, and the first signaling comprises a first configuration set; wherein a first timer is started or restarted, the first timer being related to uplink synchronization, the first timer being associated to the first TAG; the first set of configurations is applied; the first timer is maintained for the state of the given cell group according to the recipient of the first signaling; when the state of the receiver of the first signaling for the given cell group is a first state, the first node does not monitor control signaling at the given cell group; when the state of the receiver of the first signaling for the given cell group is a second state, the receiver of the first signaling monitors control signaling at the given cell group; the phrase the first timer being maintained according to a state of a recipient of the first signaling for the given cell group includes: when the state of the recipient of the first signaling for the given cell group is the first state, the first timer is continued to run as a response to the first signaling being received; when the state of the recipient of the first signaling for the given cell group is the second state, the first timer is stopped as a response to the first signaling being received; the second communication device 410 corresponds to the second node in the present application or the second communication device 410 corresponds to the fourth 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, wherein the first signaling is used for indicating a primary cell of a given cell group to change from a source cell to a target cell, the source cell belongs to a first TAG, and the first signaling comprises a first configuration set; wherein a first timer is started or restarted, the first timer being related to uplink synchronization, the first timer being associated to the first TAG; the first set of configurations is applied; the first timer is maintained for the state of the given cell group according to the recipient of the first signaling; when the state of the receiver of the first signaling for the given cell group is a first state, the first node does not monitor control signaling at the given cell group; when the state of the receiver of the first signaling for the given cell group is a second state, the receiver of the first signaling monitors control signaling at the given cell group; the phrase the first timer being maintained according to a state of a recipient of the first signaling for the given cell group includes: when the state of the recipient of the first signaling for the given cell group is the first state, the first timer is continued to run as a response to the first signaling being received; when the state of the recipient of the first signaling for the given cell group is the second state, the first timer is stopped as a response to the first signaling being received; the second communication device 410 corresponds to the second node in the present application or the second communication device 410 corresponds to the fourth 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, at least one of the controller/processors 475 being used to transmit first signaling; wherein the second communication device 410 corresponds to the second node in the present application or the second communication device 410 corresponds to the fourth node in the present application.

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, at least one of the controller/processors 475 being configured to receive second signaling; wherein the second communication device 410 corresponds to the second node in the present application or the second communication device 410 corresponds to the third node in the present application.

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 is a user device.

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 base station device (gNB/eNB/ng-eNB).

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

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

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

Example 5

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

For the first node U01, in step S5101, a first timer related to uplink synchronization is started or restarted, the first timer being associated with a first TAG; in step S5102, first signaling is received, the first signaling being used to instruct a primary cell of a given cell group to change from a source cell to a target cell, the source cell belonging to the first TAG, the first signaling comprising a first set of configurations; in step S5103, first signaling is received; in step S5104, a second timer is started; in step S5105, the first set of configurations is applied; in step S5106, it is determined that the state of the first node U01 for the given cell group is a first state; in step S5107, when the state of the first node U01 for the given cell group is the first state, continuing to run the first timer in response to receiving the first signaling; in step S5108, it is determined that the state of the first node U01 for the given cell group is a second state; in step S5109, when the state of the first node U01 for the given cell group is the second state, stopping the first timer in response to receiving the first signaling; in step S5110, a second signaling is sent, the second signaling being triggered by the first signaling; in step S5111, a second signaling is sent; in step S5112, the change of the primary cell of the given cell group from the source cell to the target cell is successfully completed; in step S5113, the second timer is stopped; in step S5114, the second timer expires; in step S5115, it is determined that the primary cell of the given cell group failed to change from the source cell to the target cell.

For the second node N02, in step S5201, the first signaling is sent; in step S5202, the first signaling is received; in step S5203, the first signaling is transmitted.

For the third node N03, in step S5301, receiving the second signaling; in step S5302, the second signaling is received.

For the fourth node N04, in step S5401, the first signaling is received; in step S5402, the first signaling is sent; in step S5403, the first signaling is transmitted.

In embodiment 5, when the state of the first node U01 for the given cell group is the first state, the first node U01 does not monitor control signaling at the given cell group; when the state of the first node U01 for the given cell group is the second state, the first node U01 monitors control signaling at the given cell group; successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiring is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell; the second signaling is used to determine that the RRC connection reconfiguration for the given cell group is complete;

As an embodiment, the first signaling indicates an expiration value of the second timer.

As one embodiment, a first field in the first signaling indicates the expiration value of the second timer.

As a sub-embodiment of this embodiment, t304 is included in the name of the first field.

As a sub-embodiment of this embodiment, t307 is included in the name of the first field.

As an embodiment, the second timer comprises an RRC layer timer.

As an embodiment, the second timer is T304.

As an embodiment, the second timer is T307.

As one embodiment, the phrase that the primary cell of the given cell group changed from the source cell to the target cell successfully completed is used to determine to stop the second timer comprises: the second timer is stopped when the primary cell change of the given cell group from the source cell to the target cell completes successfully.

As one embodiment, when the state of the first node U01 for the given cell group is the second state, the successful completion of the random access procedure included on the target cell by the primary cell of the given cell group from the source cell to the target cell is completed successfully.

As one embodiment, when the state of the first node U01 for the given cell group is the first state, the random access procedure, which is successfully completed by the primary cell of the given cell group from the source cell to the target cell and is not included on the target cell, is successfully completed.

As one embodiment, when the state of the first node U01 for the given cell group is the first state, the successful completion of the change of the primary cell of the given cell group from the source cell to the target cell comprises the behavior applying the first configuration set is completed.

As one embodiment, when the state of the first node U01 for the given cell group is the first state, the primary cell of the given cell group changes from the source cell to the target cell to successfully complete a dedicated BCCH configuration including applying the target cell.

As an embodiment, when the state of the first node U01 for the given cell group is the first state, the changing of the primary cell of the given cell group from the source cell to the target cell successfully completes comprises acquiring MIB of the target cell according to 3gpp TS 38.213.

As one embodiment, when the state of the first node U01 for the given cell group is the first state, the primary cell of the given cell group changes from the source cell to the target cell to successfully complete the C-RNTI including the value of newUE-Identity as the target cell.

As one embodiment, when the state of the first node U01 for the given cell group is the first state, the change of the primary cell of the given cell group from the source cell to the target cell successfully completes comprises configuring lower layers according to received spCellConfigCommon.

As one embodiment, the phrase that the second timer expires is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell includes: when the second timer expires, it is determined that the primary cell of the given cell group failed to change from the source cell to the target cell.

As an embodiment, a SCGFailureInformation message or SCGFailureInformationEUTRA message or SCGFailureInformationNR message is sent over SRB1 in response to determining that the primary cell of the given cell group failed to change from the source cell to the target cell.

As an embodiment, in response to the behavior applying the first set of configurations, a second timer is started; wherein the behavior initiates a second timer domain the state of the first node U01 for the given cell group is irrelevant.

As one embodiment, the act of maintaining the first timer according to the state of the first node U01 for the given cell group comprises: continuing to run the first timer as a response to receiving the first signaling when the state of the first node U01 for the given cell group is the first state during the second timer run; when the state of the first node U01 for the given cell group is the second state, the first timer is stopped as a response to receiving the first signaling.

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

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

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

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

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

As an embodiment, the second signaling is one RRC message of one RRC message.

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

As an embodiment, the logical channel of the second signaling comprises DCCH (DEDICATED CONTROL CHANNEL ).

As an embodiment, the signaling radio bearer (SIGNALLING RADIO BEARER, SRB) 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 is RRCReconfigurationComplete messages.

As an embodiment, the second signaling is RRCConnectionReconfigurationComplete messages.

As an embodiment, the second signaling includes DLInformationTransferMRDC messages.

As an embodiment, the second signaling is one RRCReconfigurationComplete message of RRCReconfigurationComplete messages.

As an embodiment, the second signaling is one RRCReconfigurationComplete message of RRCConnectionReconfigurationComplete messages.

As an embodiment, the second signaling is one RRCConnectionReconfigurationComplete message of RRCConnectionReconfigurationComplete messages.

As an embodiment, the second signaling is one RRCConnectionReconfigurationComplete message of RRCReconfigurationComplete messages.

As an embodiment, the second signaling is one RRCReconfigurationComplete message of DLInformationTransferMRDC messages.

As an embodiment, the second signaling is one RRCConnectionReconfigurationComplete message of DLInformationTransferMRDC messages.

As one embodiment, the phrase the second signaling is used to determine that the RRC connection reconfiguration complete for the given cell group includes: the second signaling is used to determine that the RRC connection reconfiguration for the given cell group was completed successfully.

As an embodiment, the phrase the second signaling is used to determine that the RRC connection reconfiguration for the given cell group completes successfully includes ：The second Signalling is used to confirm the successful completion of the RRC connection reconfiguration for the given cell group.

As an embodiment, the phrase that the second signaling is triggered by the first signaling includes: the second signaling is used to acknowledge the first signaling.

As an embodiment, the phrase that the second signaling is triggered by the first signaling includes: the second signaling is a response to the first signaling.

As an embodiment, the behavior of the first node U01 for the given cell group is the latter of the first state and the second state, starting a second timer is performed.

As an embodiment, the meaning that the state of the first node U01 for the given cell group is the latter of the first state and the second state, the act of starting a second timer is performed comprises: the second timer is not started when the state of the first node U01 for the given cell group is the first state; the second timer is started when the state of the first node U01 for the given cell group is the second state.

As an embodiment, the meaning that the state of the first node U01 for the given cell group is the latter of the first state and the second state, the act of starting a second timer is performed comprises: in response to the behavior applying the first set of configurations, the second timer is started if the state of the first node U01 for the given set of cells is the latter of the first state and the second state.

As an embodiment, in response to the behavior applying the first set of configurations, the second timer is started if the state of the first node U01 for the given cell group is the second state.

As an embodiment, the second timer is not started if the state of the first node U01 for the given cell group is the first state in response to the behavior applying the first set of configurations.

As an embodiment, the step S5101 precedes the step S5102 or the step S5103.

As an embodiment, the step S5101 is after the step S5102 or the step S5103.

As an embodiment, the step S5101 precedes the step S5104.

As an embodiment, the step S5101 follows the step S5104.

As an embodiment, the step S5101 precedes the step S5105.

As an embodiment, the step S5101 follows the step S5105.

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

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

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

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

As an example, a dashed box F5.3 exists.

As an example, the dashed box F5.3 does not exist.

As an example, a dashed box F5.4 exists.

As an example, the dashed box F5.4 does not exist.

As an example, a dashed box F5.5 exists.

As an example, the dashed box F5.5 does not exist.

As an example, a dashed box F5.6 exists.

As an example, the dashed box F5.6 does not exist.

As an example, a dashed box F5.7 exists.

As an example, the dashed box F5.7 does not exist.

As an example, a dashed box F5.8 exists.

As an example, the dashed box F5.8 does not exist.

As an example, a dashed box F5.9 exists.

As an example, the dashed box F5.9 does not exist.

As an example, a dashed box F5.10 exists.

As an example, the dashed box F5.10 does not exist.

As an example, a dashed box F5.11 exists.

As an example, the dashed box F5.11 does not exist.

As an example, a dashed box F5.12 exists.

As an example, the dashed box F5.12 does not exist.

As an embodiment, at least one of the dashed box F5.1 and the dashed box F5.2 is not present at the same time as at least one of the dashed box F5.3 and the dashed box F5.4.

As an embodiment, the dashed box F5.1 is absent and the dashed box F5.2 is present.

As a sub-embodiment of this embodiment, the signaling radio bearer of the first signaling is SRB3 or split SRB1.

As a sub-embodiment of this embodiment, the first signaling is generated at the fourth node N04.

As an embodiment said dashed box F5.1 and said dashed box F5.2 are present at the same time.

As a sub-embodiment of this embodiment, the first signaling is generated at the second node N02.

As a sub-embodiment of this embodiment, the first signaling is an RRC message, the first signaling being received in the first RRC message.

As a sub-embodiment of this embodiment, the first signaling is one of RRCReconfiguration messages or RRCConnectionReconfiguration messages.

As a sub-embodiment of this embodiment, the first RRC message is one of DLInformationTransferMRDC or RRCReconfiguration messages or RRCConnectionReconfiguration messages.

As a sub-embodiment of this embodiment, the second node N02 sends a first inter-node message, where the first inter-node message includes the first signaling; the fourth node N04 receives the first inter-node message, assembles the first signaling in the first inter-node message into the first RRC message, and sends the first RRC message, where the first RRC message includes the first signaling.

As an subsidiary embodiment of this sub-embodiment, said first inter-node message is transmitted over at least one of an Xn interface or an X2 interface or an S1 interface.

As an subsidiary embodiment of this sub-embodiment, said first signaling is included in said first inter-node message.

As an subsidiary embodiment of this sub-embodiment, said first inter-node message comprises an IE M-NG-RAN node to S-NG-RAN node Container, said third signaling being included in said IE M-NG-RAN node to S-NG-RAN node Container.

As an embodiment, the dashed box F5.3 is absent and the dashed box F5.4 is present.

As a sub-embodiment of this embodiment, the signaling radio bearer of the first signaling is SRB1.

As an embodiment said dashed box F5.3 and said dashed box F5.4 are present at the same time.

As a sub-embodiment of this embodiment, the first signaling is an RRC message, and the first signaling is received in a second RRC message.

As a sub-embodiment of this embodiment, the second RRC message is one of RRCReconfiguration messages or RRCConnectionReconfiguration messages.

As a sub-embodiment of this embodiment, the fourth node N04 sends a second inter-node message, where the second inter-node message includes the first signaling; the second node N02 receives the second inter-node message, assembles the first signaling in the second inter-node message into the second RRC message, and sends the second RRC message, where the second RRC message includes the first signaling.

As an subsidiary embodiment of this sub-embodiment, said first signalling is included in said second inter-node message.

As an subsidiary embodiment of this sub-embodiment, said second inter-node message comprises an IE S-NG-RAN node to M-NG-RAN node Container, said first signaling being included in said IE S-NG-RAN node to M-NG-RAN node Container.

As an embodiment, the dashed box F5.6 and the dashed box F5.7 do not exist at the same time.

As an embodiment, the dashed box F5.6 is present and the dashed box F5.7 is absent.

As an embodiment, the dashed box F5.6 is absent and the dashed box F5.7 is present.

As an embodiment, the dashed box F5.8 and the dashed box F5.9 do not exist at the same time.

As an embodiment, the dashed box F5.8 is present and the dashed box F5.9 is absent.

As a sub-embodiment of this embodiment, the signaling radio bearer of the second signaling is SRB1.

As a sub-embodiment of this embodiment, the second signaling is an RRC message, and the second signaling is sent in a third RRC message.

As a sub-embodiment of this embodiment, the second signaling is one of RRCReconfigurationComplete messages or RRCConnectionReconfigurationComplete messages.

As a sub-embodiment of this embodiment, the third RRC message is one of ULInformationTransferMRDC or RRCReconfigurationComplete messages or RRCConnectionReconfigurationComplete messages.

As a sub-embodiment of this embodiment, the first node U01 sends the third RRC message, where the third RRC message includes the second signaling; the second node N02 receives the third RRC message, and sends a third inter-node message as a response to the action of receiving the third RRC message, where the third node receives the third inter-node message, and the third inter-node message includes the second signaling.

As an subsidiary embodiment of this sub-embodiment, said second signalling is included in said third inter-node message.

As an subsidiary embodiment of this sub-embodiment, said third inter-node message comprises an IE M-NG-RAN node to S-NG-RAN node Container, said second signaling being included in said IE M-NG-RAN node to S-NG-RAN node Container.

As an embodiment, the dashed box F5.8 is absent and the dashed box F5.9 is present.

As a sub-embodiment of this embodiment, the signaling radio bearer of the second signaling is SRB3 or split SRB1.

As an embodiment, the dashed box F5.10 includes at least one random access preamble transmitted.

As an example, the dashed box F5.10 includes a C-RNTI MAC CE.

As an embodiment, the dashed box F5.10 includes receiving a RAR.

As an embodiment, the dashed box F5.10 includes a receiving one successRAR.

As an embodiment, the dashed box F5.10 includes a receiving one MsgB.

As an embodiment, the dashed box F5.10 includes a receiving one UE Contention Resolution IDENTITY MAC CE.

As an embodiment, the dashed box F5.11 and the dashed box F5.12 do not exist at the same time.

As an embodiment, the dashed box F5.11 is present and the dashed box F5.12 is absent.

As an embodiment, the dashed box F5.11 is absent and the dashed box F5.12 is present.

As an example, if the dashed box F5.5 does not exist, the step S5113 and the step S5114 do not exist either.

As an example, if the dashed box F5.5 exists, the step S5113 exists or the step S5114 exists, and the step S5113 and the step S5114 do not exist at the same time.

Example 6

Embodiment 6 illustrates a schematic diagram in which both the target cell and the source cell belong to a first TAG that is used to determine that the first timer continues to run according to one embodiment of the present application.

In embodiment 6, the first timer continues to run only if both the target cell and the source cell belong to the first TAG; wherein the state of the first node for the given cell group is the first state.

As an embodiment, the first node starts or restarts a first timer in step S601, the first timer being related to uplink synchronization, the first timer being associated to a first TAG; in step S602, first signaling is received, the first signaling being used to instruct a primary cell of a given cell group to change from a source cell to a target cell, the source cell belonging to the first TAG, the first signaling comprising a first set of configurations; in step S603, the first set of configurations is applied; in step S604, it is determined whether the state of the first node for the given cell group is the second state, if so, step S605 (a) is entered, otherwise step S605 (b) is entered; in step S605 (a), stopping the first timer; in step S605 (b), determining that the state of a first node for the given cell group is the first state; in step S606, it is determined whether the target cell and the source cell both belong to the first TAG, if so, step S605 (a) is entered, otherwise step S607 is entered; in step S607, the first timer is continued to run.

As an embodiment, the source cell and the target cell belong to the same node.

As an embodiment, the source cell and the target cell belong to two different nodes.

As an embodiment, both the source cell and the target cell are cells of SN.

As an embodiment, the target cell is one serving cell of the given set of cells when the first signaling is received.

As an embodiment, the target cell is not one serving cell of the given cell group when the first signaling is received.

As an embodiment, the phrase that the target cell and the source cell both belong to the first TAG includes: the target cell belongs to the first TAG and the source cell belongs to the first TAG.

As an embodiment, the phrase that the target cell and the source cell both belong to the first TAG includes: the target cell and the source cell belong to the same node.

As an embodiment, the phrase that the target cell and the source cell both belong to the first TAG includes: the source cell is a PSCell and the target cell is an SCell in the given cell group, both the SCell and the PSCell belonging to the first TAG.

As an embodiment, the phrase that the target cell and the source cell both belong to the first TAG includes: the target cell is one serving cell of the given set of cells other than the source cell.

As an embodiment, the phrase that the target cell and the source cell both belong to the first TAG includes: the target cell is a serving cell outside the given set of cells.

As an embodiment, the meaning of the sentence "the first timer continues to run only when both the target cell and the source cell belong to the first TAG" includes: if the target cell and the source cell belong to the first TAG, continuing to operate the first timer; and if the target cell does not belong to the first TAG, stopping the first timer.

As an embodiment, the meaning of the sentence "the first timer continues to run only when both the target cell and the source cell belong to the first TAG" includes: the target cell and the source cell both belonging to the first TAG are used to determine to continue running the first timer.

As an embodiment, the meaning of the sentence "the first timer continues to run only when both the target cell and the source cell belong to the first TAG" includes: the target cell not belonging to the first TAG is used to determine not to continue running the first timer.

As a sub-embodiment of this embodiment, the act of not continuing to run the first timer comprises: and stopping the first timer.

As a sub-embodiment of this embodiment, the act of not continuing to run the first timer comprises: the first timer is deemed to expire.

As one embodiment, the act of maintaining the first timer according to the state of the first node for the given cell group comprises: continuing to run the first timer if both the target cell and the source cell belong to the first TAG when the state of the first node for the given cell group is the first state; stopping the first timer if the target cell does not belong to the first TAG when the state of the first node for the given cell group is the first state; the first timer is stopped as a response to receiving the first signaling when the state of the first node for the given cell group is the second state.

As an embodiment, when the state of the first node for the given cell group is the first state, both the target cell and the source cell belong to the first TAG are used to determine that the first timer continues to run.

As an embodiment, when the state of the first node for the given cell group is the first state, if both the target cell and the source cell belong to the first TAG, continuing to run the first timer; and if the target cell does not belong to the first TAG, stopping the first timer.

As an embodiment, the step S601 precedes the step S602.

As an embodiment, the step S601 follows the step S602.

As an embodiment, the step S601 precedes the step S603.

As an embodiment, the step S601 follows the step S603.

As an embodiment, the steps S604 to S605 (a) belong to the step S603.

As an embodiment, the steps S604 to S607 belong to the step S603.

Example 7

Embodiment 7 illustrates a schematic diagram in which resetting the MAC entity associated with a given cell group does not include stopping the first timer, according to one embodiment of the application.

In embodiment 7, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group; wherein when the state of the first node for the given cell group is the first state, the behavior resets the MAC entity associated with the given cell group not to include the behavior to stop the first timer; the act of resetting the MAC entity associated with the given cell group includes the act of stopping the first timer when the state of the first node for the given cell group is the second state.

As an embodiment, the first node starts or restarts a first timer in step S701, the first timer being related to uplink synchronization, the first timer being associated to a first TAG; in step S702, first signaling is received, the first signaling being used to instruct a primary cell of a given cell group to change from a source cell to a target cell, the source cell belonging to the first TAG, the first signaling comprising a first set of configurations; in step S703, the first configuration set is applied; in step S704, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group; in step S705, it is determined whether the state of the first node for the given cell group is the second state, if so, step S706 (a) is entered, otherwise step S706 (b) is entered; in step S706 (a), the first timer is continuously run; in step S706 (b), it is determined that the state of the first node for the given cell group is the first state; in step S707, stopping the first timer;

As one embodiment, when the state of the first node for the given cell group is the first state, the first node does not monitor control signaling at the given cell group; when the state of the first node for the given cell group is the second state, the first node monitors control signaling at the given cell group; when the state of the first node for the given cell group is the first state, the act resets the MAC entity associated with the given cell group not to include the act to stop the first timer; the act of resetting the MAC entity associated with the given cell group includes the act of stopping the first timer when the state of the first node for the given cell group is the second state.

As an embodiment, the first receiver resets the MAC entity associated to the given cell group in response to receiving the first signaling; wherein when the state of the first node for the given cell group is the first state and both the target cell and the source cell belong to the first TAG, the behavior resets the MAC entity associated with the given cell group not to include the behavior to stop the first timer; the act of resetting the MAC entity associated with the given cell group includes the act of stopping the first timer when the state of the first node for the given cell group is the second state.

As an embodiment, the sentence "reset the MAC entity associated to the given cell group as a response to receiving the first signaling" comprises: the act resets the MAC entity associated with the given cell group to be triggered by the act receiving a first signaling.

As an embodiment, the sentence "reset the MAC entity associated to the given cell group as a response to receiving the first signaling" comprises: upon receiving the first signaling, the MAC entity associated with the given cell group is reset.

As an embodiment, the sentence "reset the MAC entity associated to the given cell group as a response to receiving the first signaling" comprises: the MAC entity associated with the given cell group is reset as a subsequent action to receiving the first signaling.

As one embodiment, the action resetting the MAC entity associated to the given cell group comprises: RESET THE MAC ENTITY of THE GIVEN CELL groups.

As one embodiment, the act of resetting the MAC entity associated with the given cell group does not include the act of stopping the first timer when the state of the first node for the given cell group is the first state.

As one embodiment, when the state of the first node for the given cell group is the first state, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group, the act resetting the MAC entity associated with the given cell group not including the act stopping the first timer.

As one embodiment, when the state of the first node for the given cell group is the first state, the MAC entity associated with the given cell group is reset in response to receiving the first signaling.

As one embodiment, when the state of the first node for the given cell group is the first state, the MAC entity associated with the given cell group is not reset in response to receiving the first signaling.

As an embodiment, when the state of the first node for the given cell group is the second state, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group, the act of resetting the MAC entity associated with the given cell group includes the act of stopping the first timer.

As one embodiment, the behavior reset is associated with the MAC entity of the given cell group comprising a first set of actions comprising at least one of:

-initializing Bj of each logical channel to zero (initialize Bj for each logical channel to zero).

NDI of all uplink HARQ processes is set to 0 (SET THE NDIS for all uplink HARQ processes to the value 0).

Stopping one random access procedure if it is being performed.

Contention-free random access resource discarding explicit signal for four-step random access type and two-step random access type (discard explicitly signalled contention-free Random Access Resources for 4-step RA type and 2-step RA type).

Refresh Msg3 (Message 3 ) buffer (flush Msg3 buffer).

Refresh MsgA (Message a ) buffer (flush MsgA buffer).

-If one scheduling request procedure is triggered, cancelling said one scheduling request procedure (cancel, if any, TRIGGERED SCHEDULING REQUEST PROCEDURE).

-If one buffer status reporting procedure is triggered, cancelling said one buffer status reporting procedure (cancel, if any, TRIGGERED BUFFER STATUS REPORTING PROCEDURE).

-If one power headroom reporting procedure is triggered, cancelling said one power headroom reporting procedure (cancel, if any, TRIGGERED POWER HEADROOM REPORTING PROCEDURE).

If one continuous LBT failure is triggered, cancel the one continuous LBT (Listen Before Talk ) failure (cancel, if any, TRIGGERED CONSISTENT LBT FAILURE).

If one BFR is triggered, cancel said one BFR (Beam Failure Report ) (cancel, if any, TRIGGERED BFR).

Flush the soft buffer (flush the soft buffers for ALL DL HARQ process) of all downlink HARQ (Hybrid Automatic Repeat Request ) processes.

-Said action resetting the MAC entity associated to said given cell group comprises: for each downlink HARQ process, the next received TB (Transmission Block, transport block) transmission is considered the first transmission (for each DL HARQ process,consider the next received transmission for a TB as the very first transmission).

Releasing said Temporary C-RNTI (release, if any, temporary C-RNTI).

Reset all bfi_ COUNTERs (reset all bfi_ COUNTERs).

Reset all lbt_ COUNTERs (reset all lbt_ COUNTERs).

As an embodiment, the behavior resetting the MAC entity associated to the given cell group comprises at least: stopping all running timers (stop (if running) ALL TIMERS except THE FIRST TIMER) other than the first timer if there are other timers running than the first timer when the state of the first node for the given cell group is the first state; when the state of the first node for the given cell group is the second state, if there are timers running, all running timers (stop (if running) ALL TIMERS) are stopped, including the first timer.

As a sub-embodiment of this embodiment, the act of stopping all running timers other than the first timer includes not stopping the first timer.

As a sub-embodiment of this embodiment, the act of stopping all running timers other than the first timer means that the first timer continues to run.

As an embodiment, the behavior resetting the MAC entity associated to the given cell group comprises at least: stopping all running timers (stop (if running) ALL TIMERS except THE FIRST TYPE TIMERS) of a first type of timer if there are other timers running except the first type of timer when the state of the first node for the given cell group is the first state; when the state of the first node for the given cell group is the second state, if there are timers running, all running timers (stop (if running) ALL TIMERS) are stopped, including the first timer.

As a sub-embodiment of this embodiment, the act of stopping all running timers other than the first type of timer includes not stopping the first type of timer.

As a sub-embodiment of this embodiment, the act of stopping all running timers other than the first type of timer includes continuing to run the first type of timer.

As an embodiment, the first type of timer comprises at least one timer, the first timer being one of the first type of timers.

As one embodiment, the first type of timer includes STAG (Secondary TAG) timeAlignmentTimer.

As one example, no SpCell or PSCell is included in a STAG.

As an embodiment, one STAG includes at least one SCell therein.

As one embodiment, the first type of timer includes a timeAlignmentTimer of the PTAG.

As one embodiment, the first type of timer is associated with the given cell group.

As one embodiment, the first type of timer includes any timeAlignmentTimer in the given cell group.

As an embodiment, the first type timer comprises a timeAlignmentTimer of one TAG in the given cell group.

As a sub-embodiment of this embodiment, the one TAG is a PTAG including PSCell of the given cell group.

As a sub-embodiment of this embodiment, the one TAG is a STAG in which PSCell of the given cell group is not included.

As a sub-embodiment of this embodiment, the one TAG is associated with one TAG identification (TAG-Id).

As a sub-embodiment of this embodiment, the TAG-Id is an integer not less than 0 and not more than maxNrofTAGs-1, and the maxNrofTAGs is configurable.

As an subsidiary embodiment of this sub-embodiment, said maxNrofTAGs is equal to 4.

As a subsidiary embodiment of this sub-embodiment, said maxNrofTAGs is equal to 8.

As an embodiment, the first timer is a first type timer of which TAG-Id is equal to 0.

As one embodiment, when the state of the first node for the given cell group is the first state, the act of resetting the MAC entity associated with the given cell group does not include the act of stopping the first timer, and the act of resetting the MAC entity associated with the given cell group does not include deeming the first timer to expire.

As one embodiment, when the state of the first node for the given cell group is the first state, the act of resetting the MAC entity associated with the given cell group does not include the act of stopping the first timer, and the act of resetting the MAC entity associated with the given cell group does not include all TIMEALIGNMENTTIMERS that are considered to be associated with the given cell group expiring.

As one embodiment, when the state of the first node for the given cell group is the first state, the action resetting the MAC entity associated with the given cell group includes the first set of actions, and the action resetting the MAC entity associated with the given cell group does not include the action stopping the first timer, and the action resetting the MAC entity associated with the given cell group does not include deeming the first timer to expire.

As one embodiment, when the state of the first node for the given cell group is the second state, the act of resetting the MAC entity associated with the given cell group includes the act of stopping the first timer, and the act of resetting the MAC entity associated with the given cell group includes at least one of:

As an embodiment, the sentence "reset the MAC entity associated to the given cell group as a response to receiving the first signaling" comprises: in response to receiving the first signaling, if the RRC layer requests a reset of the MAC entity of the given cell group, the MAC layer of the first node resets the MAC entity associated with the given cell group.

As an embodiment, the sentence "reset the MAC entity associated to the given cell group as a response to receiving the first signaling" comprises: in response to receiving the first signaling, the RRC layer of the first node instructs the MAC layer of the first node to reset the MAC entity associated with the given cell group.

As an embodiment, the sentence "reset the MAC entity associated to the given cell group as a response to receiving the first signaling" comprises: in response to receiving the first signaling, the MAC entity associated with the given cell group is reset during application of the first set of configurations.

As an embodiment, the sentence "reset the MAC entity associated to the given cell group as a response to receiving the first signaling" comprises: and in response to receiving the first signaling, resetting the MAC entity associated with the given cell group after acquiring downlink synchronization of the target cell.

As an embodiment, the sentence "reset the MAC entity associated to the given cell group as a response to receiving the first signaling" comprises: in response to receiving the first signaling, the MAC entity associated with the given cell group is reset after acquiring the MIB of the target cell according to 3gpp TS 38.213.

As an embodiment, the sentence "reset the MAC entity associated to the given cell group as a response to receiving the first signaling" comprises: in response to receiving the first signaling, the MAC entity associated with the given cell group is reset before newUE-Identity in the first signaling is applied as the C-RNTI for the given cell group.

As an embodiment, the sentence "reset the MAC entity associated to the given cell group as a response to receiving the first signaling" comprises: in response to receiving the first signaling, the MAC entity associated with the given cell group is reset before configuring the lower layers of the given cell group according to spCellConfigCommon in the first signaling.

As an embodiment, the meaning of the sentence "when the state of the first node for the given cell group is the first state, the behavior resetting the MAC entity associated to the given cell group does not include the behavior stopping the first timer" includes: the first timer is not stopped in response to the behavior resetting a MAC entity associated with the given cell group when the state of the first node for the given cell group is the first state.

As one embodiment, the sentence "when the state of the first node for the given cell group is the second state, the act of resetting the MAC entity associated with the given cell group includes the act of stopping the first timer" includes: when the state of the first node for the given cell group is the second state, the first timer is stopped in response to the behavior resetting a MAC entity associated with the given cell group.

As one embodiment, the sentence "when the state of the first node for the given cell group is the first state, the behavior resets the MAC entity associated with the given cell group not to include the behavior to stop the first timer; when the state of the first node for the given cell group is the second state, the act of resetting the MAC entity associated with the given cell group includes the act of stopping the first timer "including: in response to the behavior resetting the MAC entity associated with the given cell group, the first timer is stopped only if the state of the first node for the given cell group is the second state.

As an embodiment, the step S701 precedes the step S702.

As an embodiment, the step S701 follows the step S702.

As an embodiment, the step S701 precedes the step S703.

As an embodiment, the step S701 follows the step S703.

As an embodiment, the steps S705 to S706 (a) belong to the step S704.

As an embodiment, the steps S705 to S707 belong to the step S704.

Example 8

Embodiment 8 illustrates a schematic diagram in which relinquishing resetting the MAC entity associated with the given cell group includes continuing to run the first timer in accordance with one embodiment of the present application.

In embodiment 8, when the state of the first node for the given cell group is the first state, in response to receiving the first signaling, discarding resetting the MAC entity associated with the given cell group, the act of discarding resetting the MAC entity associated with the given cell group including the act of continuing to run the first timer; when the state of the first node for the given cell group is the second state, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group, the act resetting the MAC entity associated with the given cell group including the act stopping the first timer.

As an embodiment, the sentence "when the state of the first node for the given cell group is the first state, continuing to run the first timer as a response to receiving the first signaling" includes: when the state of the first node for the given cell group is the first state, in response to receiving the first signaling, relinquishing resetting the MAC entity associated with the given cell group, the act of relinquishing resetting the MAC entity associated with the given cell group including the act of continuing to run the first timer.

As one embodiment, the sentence "stopping the first timer as a response to receiving the first signaling when the state of the first node for the given cell group is the second state" includes: when the state of the first node for the given cell group is the second state, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group, the act resetting the MAC entity associated with the given cell group including the act stopping the first timer.

As an embodiment, in step S801, the first node starts or restarts a first timer, the first timer being related to uplink synchronization, the first timer being associated to a first TAG; in step S802, first signaling is received, the first signaling being used to instruct a primary cell of a given cell group to change from a source cell to a target cell, the source cell belonging to the first TAG, the first signaling comprising a first set of configurations; in step S803, the first configuration set is applied; in step S804, it is determined whether the state of the first node for the given cell group is the second state, if so, step S805 (a) is entered, otherwise step S805 (b) is entered; in step S805 (a), when the state of the first node for the given cell group is the second state, resetting the MAC entity associated with the given cell group in response to receiving the first signaling; in step S806 (a), stopping the first timer, the act of resetting the MAC entity associated with the given cell group comprising the act of stopping the first timer; in step S805 (b), it is determined that the state of the first node for the given cell group is the first state; in step S806 (b), when the state of the first node for the given cell group is the first state, discarding resetting the MAC entity associated with the given cell group in response to receiving the first signaling; in step S807, continuing to run a first timer, said act of relinquishing resetting the MAC entity associated with the given cell group comprising said act of continuing to run the first timer; wherein when the state of the first node for the given cell group is the first state, the first node does not monitor control signaling at the given cell group; the first node monitors control signaling at the given cell group when the state of the first node for the given cell group is the second state.

As an embodiment, when the state of the first node for the given cell group is the first state, in response to receiving the first signaling, discarding resetting the MAC entity associated with the given cell group, the act of discarding resetting the MAC entity associated with the given cell group comprises the act of continuing to run the first timer; or when the state of the first node for the given cell group is the second state, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group, the act of resetting the MAC entity associated with the given cell group including the act of stopping the first timer.

As one embodiment, the act of relinquishing resetting the MAC entity associated with the given cell group includes: no action is performed to reset the MAC entity associated to the given cell group.

As one embodiment, the act of relinquishing resetting the MAC entity associated with the given cell group includes: the MAC entity associated with the given cell group is not reset.

As one embodiment, the act of relinquishing resetting the MAC entity associated with the given cell group includes: at least one action of the first set of actions is not performed.

As one embodiment, the sentence "the act of relinquishing the reset of the MAC entity associated with the given cell group includes the act of continuing to run the first timer" includes: the behavior relinquish resetting the MAC entity associated with the given cell group is used to determine to continue running the first timer.

As one embodiment, the sentence "the act of relinquishing the reset of the MAC entity associated with the given cell group includes the act of continuing to run the first timer" includes: the MAC entity associated with the given cell group is not reset and the first timer continues to run.

As one embodiment, the sentence "the act of relinquishing the reset of the MAC entity associated with the given cell group includes the act of continuing to run the first timer" includes: the MAC entity associated with the given cell group is not reset and if the first timer is running, the first timer continues to run.

As one embodiment, the sentence "the behavior resets the MAC entity associated to the given cell group includes the behavior stopping the first timer" includes: the behavior resets the MAC entity associated with the given cell group to be used to determine to stop the first timer.

As one embodiment, the sentence "the behavior resets the MAC entity associated to the given cell group includes the behavior stopping the first timer" includes: the MAC entity associated with the given cell group is reset and the first timer is stopped.

As one embodiment, the sentence "the behavior resets the MAC entity associated to the given cell group includes the behavior stopping the first timer" includes: the MAC entity associated with the given cell group is reset and the first timer is stopped if it is running.

As one embodiment, the sentence "the behavior resets the MAC entity associated to the given cell group includes the behavior stopping the first timer" includes: resetting the MAC entity associated with the given cell group, in response to resetting the MAC entity associated with the given cell group, stopping the first timer if the first timer is running.

As an embodiment, the step S801 precedes the step S802.

As an embodiment, the step S801 follows the step S802.

As an embodiment, the step S801 precedes the step S803.

As an embodiment, the step S801 follows the step S803.

As an embodiment, the steps S804 to S806 (a) belong to the step S803.

As an embodiment, the steps S804 to S807 belong to the step S803.

Example 9

Embodiment 9 illustrates a schematic diagram of a first node simultaneously connecting with a second class of nodes and a third class of nodes according to an embodiment of the present application. In fig. 9, the first node is a user equipment, and the second type node and the third type node are two base station devices, respectively; two solid lines represent links between the first node and the second class node and links between the first node and the third class node, respectively; the dashed lines represent links between the nodes of the second type and the nodes of the third type.

In embodiment 9, the first node is connected to both the second type node and the third type node through a Dual Connection (DC).

As an embodiment, the dual connection comprises MR-DC (Multi-Radio Dual Connectivity).

As an embodiment, the dual connectivity comprises NR DC (NR-NR Dual Connectivity).

As an embodiment, the dual connectivity comprises Intra-E-UTRA DC.

As an embodiment, the dual connectivity comprises NE-DC (NR-E-UTRA Dual Connectivity).

As an embodiment, the dual connectivity comprises NGEN-DC (NG-RAN E-UTRA-NR Dual Connectivity).

As an example, the dual connectivity comprises EN DC (E-UTRA-NR Dual Connectivity).

As one embodiment, the dual-connectivity wireless protocol architecture (Radio Protocol Architecture) references section 4.2 of TS 37.340.

As an embodiment, the radio protocol architecture of the user plane and control plane of the present application is referenced in section 4.2 of TS 37.340.

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

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

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

As an embodiment, the second class of nodes comprises the second node in the present application.

As an embodiment, the second class of nodes comprises Master Nodes (MN).

As an embodiment, the second class node comprises MeNB (Master eNodeB).

As an embodiment, the second class node comprises MgNB (Master eNodeB).

As an embodiment, the second class of nodes includes CUs (Centralized units).

As an embodiment, the second class of nodes comprises a node in an MCG.

As an embodiment, the second class node is a NR-enabled base station device.

As an embodiment, the second class node is a UTRA enabled base station device.

As an embodiment, the second class node is a base station device supporting EUTRA.

As an embodiment, the second class node is a base station device supporting WLAN.

As an embodiment, the second class node is a BT-enabled base station device.

As an embodiment, the third class of nodes includes the third node in the present application.

As an embodiment, the third class of nodes includes the fourth node in the present application.

As an embodiment, the third class of nodes includes a Secondary Node (SN).

As an embodiment, the third class of nodes includes senbs.

As an embodiment, the third class node includes SgNB.

As an embodiment, the third class of nodes comprises DUs.

As an embodiment, the third class of nodes comprises one node in an SCG.

As an embodiment, the third class node is a base station device supporting NR.

As an embodiment, the third class node is a UTRA enabled base station device.

As an embodiment, the third class node is a base station device supporting EUTRA.

As an embodiment, the third class node is a base station device supporting WLAN.

As an embodiment, the third class node is a base station device supporting BT.

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

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

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

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

As an embodiment, the link between the second class node and the third class node is a non-ideal backhaul (non-ideal backhaul).

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

As an embodiment, the second class node and the third class node belong to the same RAT.

As an embodiment, the second class node and the third class node belong to different RATs.

As an embodiment, the base station device comprises one of a BS or BTS or NB or gNB or eNB or ng-eNB or en-gNB.

Example 10

Embodiment 10 illustrates a block diagram of a processing apparatus for use in a first node according to one embodiment of the application; as shown in fig. 10. In fig. 10, a processing means 1000 in a first node comprises a first receiver 1001 and a first transmitter 1002.

The first receiver 1001 starts or restarts a first timer, which is related to uplink synchronization, which is associated to a first TAG; receiving first signaling, wherein the first signaling is used for indicating a primary cell of a given cell group to change from a source cell to a target cell, the source cell belongs to the first TAG, and the first signaling comprises a first configuration set; applying the first set of configurations; maintaining the first timer according to the state of the first node for the given cell group;

In embodiment 10, when the state of the first node for the given cell group is a first state, the first node does not monitor control signaling at the given cell group; when the state of the first node for the given cell group is a second state, the first node monitors control signaling at the given cell group; the act of maintaining the first timer in accordance with the state of the first node for the given cell group comprises: continuing to run the first timer in response to receiving the first signaling when the state of the first node for the given cell group is the first state; the first timer is stopped as a response to receiving the first signaling when the state of the first node for the given cell group is the second state.

As an embodiment, the first timer continues to run only if both the target cell and the source cell belong to the first TAG; wherein the state of the first node for the given cell group is the first state.

As an embodiment, the first receiver 1001 resets the MAC entity associated to the given cell group in response to receiving the first signaling; wherein when the state of the first node for the given cell group is the first state, the behavior resets the MAC entity associated with the given cell group not to include the behavior to stop the first timer; the act of resetting the MAC entity associated with the given cell group includes the act of stopping the first timer when the state of the first node for the given cell group is the second state.

As an embodiment, when the state of the first node for the given cell group is the first state, the first receiver 1001, in response to receiving the first signaling, forgoes resetting the MAC entity associated with the given cell group, the act of forgoing resetting the MAC entity associated with the given cell group comprises the act of continuing to run the first timer; when the state of the first node for the given cell group is the second state, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group, the act resetting the MAC entity associated with the given cell group including the act stopping the first timer.

As an embodiment, the first transmitter 1002 sends a second signaling, which is triggered by the first signaling; wherein the second signaling is used to determine that the RRC connection reconfiguration for the given cell group is complete.

As an embodiment, the first receiver 1001 starts a second timer in response to the behavior applying the first set of configurations; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

As an embodiment, the behavior of the first node for the given cell group is the latter of the first state and the second state, starting a second timer is performed.

As an example, the first receiver 1001 includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460 and the data source 467 of fig. 4 of the present application.

As an example, the first receiver 1001 includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, and the receive processor 456 of fig. 4 of the present application.

As an example, the first receiver 1001 includes the antenna 452, the receiver 454, and the receive processor 456 of fig. 4 of the present application.

As an example, the first transmitter 1002 includes the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an example, the first transmitter 1002 includes the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 of fig. 4 of the present application.

As an example, the first transmitter 1002 includes the antenna 452, the transmitter 454, and the transmit processor 468 of fig. 4 of the application.

Example 11

Embodiment 11 illustrates a block diagram of a processing apparatus for use in a second node according to one embodiment of the application; as shown in fig. 11. In fig. 11, the processing means 1100 in the second node comprises a second transmitter 1101 and a second receiver 1102.

A second transmitter 1101, transmitting first signaling, the first signaling being used to instruct a primary cell of a given cell group to change from a source cell to a target cell, the source cell belonging to a first TAG, the first signaling comprising a first set of configurations;

in embodiment 11, a first timer is started or restarted, the first timer being related to uplink synchronization, the first timer being associated with the first TAG; the first set of configurations is applied; the first timer is maintained for the state of the given cell group according to the recipient of the first signaling; when the state of the recipient of the first signaling for the given cell group is a first state, the recipient of the first signaling does not monitor control signaling at the given cell group; when the state of the receiver of the first signaling for the given cell group is a second state, the receiver of the first signaling monitors control signaling at the given cell group; the act of maintaining the first timer in accordance with a state of a recipient of the first signaling for the given cell group includes: when the state of the recipient of the first signaling for the given cell group is the first state, the first timer is continued to run as a response to the first signaling being received; when the state of the recipient of the first signaling for the given cell group is the second state, the first timer is stopped as a response to the first signaling being received.

As an embodiment, the first timer is started by or restarted by the receiver of said first signaling.

As an embodiment, the first set of configurations is applied by a receiver of the first signaling.

As an embodiment, the first timer is maintained by the recipient of the first signaling according to the state of the recipient of the first signaling for the given cell group.

As an embodiment, the first timer continues to run only if both the target cell and the source cell belong to the first TAG; wherein the state of a receiver of the first signaling for the given cell group is the first state.

As an embodiment, the receiver of the first signaling is the first node.

As an embodiment, the first signaling is sent by the fourth node.

As an embodiment, the first signaling is sent by the second node.

As an embodiment, the MAC entity associated to the given cell group is reset as a response to the first signaling being received; wherein when the state of the recipient of the first signaling for the given cell group is the first state, the MAC entity of the behavior associated with the given cell group is reset excluding the behavior, the first timer is stopped; when the state of the recipient of the first signaling for the given cell group is the second state, the act of the MAC entity associated with the given cell group being reset includes the act of the first timer being stopped.

As an embodiment, the MAC entity associated to the given cell group is reset by the receiver of the first signaling.

As an embodiment, when the state of the recipient of the first signaling for the given cell group is the first state, as a response to the first signaling being received, the MAC entity associated with the given cell group is relinquished to reset, the act of the MAC entity associated with the given cell group being relinquished to reset includes the act of the first timer being continued to run; when the state of the recipient of the first signaling for the given cell group is the second state, as a response to the first signaling being received, the MAC entity associated with the given cell group is reset, and the act of the MAC entity associated with the given cell group being reset includes the act of the first timer being stopped.

As an embodiment, the MAC entity coupled to the given cell group is relinquished by the receiver of the first signaling.

As an embodiment, the second receiver 1102 receives second signaling, which is triggered by the first signaling; wherein the second signaling is used to determine that the RRC connection reconfiguration for the given cell group is complete.

As an embodiment, the second signaling is received by the third node.

As an embodiment, the second signaling is received by the second node.

As an embodiment, a second timer is started in response to the first set of configurations being applied; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

As an embodiment, the second timer is started by a receiver of said first signaling.

As an embodiment, the state of the recipient of the first signaling for the given cell group is the latter of the first state and the second state, the act second timer being started before being executed.

As an example, the second transmitter 1101 includes the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As an example, the second transmitter 1101 includes the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, and the transmission processor 416 of fig. 4 of the present application.

As an example, the second transmitter 1101 includes the antenna 420 of fig. 4, the transmitter 418, and the transmitting processor 416 of the present application.

As an example, the second receiver 1102 includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As an example, the second receiver 1102 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.

As an example, the second receiver 1102 includes the antenna 420, the receiver 418, and the receive processor 470 of fig. 4 of the present application.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The user equipment, the terminal and the UE in the application comprise, but are not limited to, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control airplanes, aircrafts, mini-planes, mobile phones, tablet computers, notebooks, vehicle-mounted Communication equipment, 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 equipment, low-cost mobile phones, low-cost tablet computers and other wireless Communication equipment. 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, transmission/reception 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 modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A first node for wireless communication, comprising:

the maintaining the first timer according to the state of the first node for the given cell group comprises:

2. The first node of claim 1, wherein the first timer continues to run only if both the target cell and the source cell belong to the first TAG; wherein the state of the first node for the given cell group is the first state.

3. The first node according to claim 1 or 2, comprising:

the first receiver, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group;

Wherein when the state of the first node for the given cell group is the first state, the resetting the MAC entity associated with the given cell group does not include the stopping the first timer; the resetting the MAC entity associated with the given cell group includes the stopping the first timer when the state of the first node for the given cell group is the second state.

4. The first node according to claim 1 or 2, comprising:

-said first receiver, when said state of said first node for said given cell group is said first state, discarding resetting a MAC entity associated with said given cell group in response to receiving said first signaling, said discarding resetting a MAC entity associated with said given cell group comprising said continuing to run said first timer; when the state of the first node for the given cell group is the second state, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group, the resetting the MAC entity associated with the given cell group including the stopping of the first timer.

5. The first node according to any of claims 1 or 2, comprising:

a first transmitter that transmits a second signaling, the second signaling being triggered by the first signaling;

wherein the second signaling is used to determine RRC connection reconfiguration complete for the given cell group.

6. A first node according to claim 3, comprising: a first transmitter that transmits a second signaling, the second signaling being triggered by the first signaling; wherein the second signaling is used to determine RRC connection reconfiguration complete for the given cell group.

7. The first node of claim 4, comprising: a first transmitter that transmits a second signaling, the second signaling being triggered by the first signaling; wherein the second signaling is used to determine RRC connection reconfiguration complete for the given cell group.

8. The first node of any one of claims 1, 2, 6 or 7, comprising:

the first receiver, in response to the application of the first set of configurations, starting a second timer;

9. A first node according to claim 3, comprising: the first receiver, in response to the application of the first set of configurations, starting a second timer; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

10. The first node of claim 4, comprising: the first receiver, in response to the application of the first set of configurations, starting a second timer; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

11. The first node of claim 5, comprising: the first receiver, in response to the application of the first set of configurations, starting a second timer; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

12. The first node of claim 8, wherein the state of the first node for the given cell group is the latter of the first state and the second state, the starting of a second timer being performed.

13. The first node according to any of claims 9 to 11, wherein the state of the first node for the given cell group is the latter of the first state and the second state, the starting of a second timer being performed.

14. A second node for wireless communication, comprising:

Wherein a first timer is started or restarted, the first timer being related to uplink synchronization, the first timer being associated to the first TAG; the first set of configurations is applied; the first timer is maintained for the state of the given cell group according to the recipient of the first signaling; when the state of the recipient of the first signaling for the given cell group is a first state, the recipient of the first signaling does not monitor control signaling at the given cell group; when the state of the receiver of the first signaling for the given cell group is a second state, the receiver of the first signaling monitors control signaling at the given cell group; the receiver according to the first signaling maintaining the first timer for the state of the given cell group comprises: when the state of the recipient of the first signaling for the given cell group is the first state, the first timer is continued to run as a response to the first signaling being received; when the state of the recipient of the first signaling for the given cell group is the second state, the first timer is stopped as a response to the first signaling being received.

15. The second node of claim 14, wherein the second node comprises a second node comprising a second node,

The first timer continues to run only if both the target cell and the source cell belong to the first TAG; wherein the state of a receiver of the first signaling for the given cell group is the first state.

16. The second node according to claim 14 or 15, characterized in that,

As a response to the first signaling being received, the MAC entity associated with the given cell group is reset; wherein when the state of the recipient of the first signaling for the given cell group is the first state, the MAC entity associated with the given cell group is reset to exclude the first timer from being stopped; when the state of the recipient of the first signaling for the given cell group is the second state, the MAC entity associated with the given cell group being reset includes the first timer being stopped.

17. The second node according to any of the claims 14 or 15, characterized in,

When the state of the recipient of the first signaling for the given cell group is the first state, as a response to the first signaling being received, the MAC entity associated with the given cell group is relinquished to reset, the MAC entity associated with the given cell group being relinquished to reset including the first timer being continued to run; when the state of the recipient of the first signaling for the given cell group is the second state, as a response to the first signaling being received, a MAC entity associated with the given cell group is reset, the MAC entity associated with the given cell group being reset including the first timer being stopped.

18. The second node according to any of the claims 14 or 15, characterized in,

A second receiver that receives second signaling, the second signaling being triggered by the first signaling; wherein the second signaling is used to determine RRC connection reconfiguration complete for the given cell group.

19. The second node of claim 16, wherein a second receiver receives second signaling, the second signaling triggered by the first signaling; wherein the second signaling is used to determine RRC connection reconfiguration complete for the given cell group.

20. The second node of claim 17, wherein a second receiver receives second signaling, the second signaling triggered by the first signaling; wherein the second signaling is used to determine RRC connection reconfiguration complete for the given cell group.

21. The second node according to any of claims 14, 15, 19 or 20,

In response to the first set of configurations being applied, a second timer is started; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

22. The second node of claim 16, wherein a second timer is started in response to the first set of configurations being applied; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

23. The second node of claim 17, wherein a second timer is started in response to the first set of configurations being applied; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

24. The second node of claim 18, wherein a second timer is started in response to the first set of configurations being applied; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

25. The second node of claim 21, wherein the second node comprises a second node comprising a second node,

The state of the recipient of the first signaling for the given cell group is the latter of the first state and the second state, the second timer being started before being executed.

26. The second node according to any of the claims 22 to 24, characterized in,

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

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

The first timer continues to run only if both the target cell and the source cell belong to the first TAG; wherein the state of the first node for the given cell group is the first state.

29. A method in a first node according to claim 27 or 28, comprising:

30. The method in a first node according to any of claims 27 or 28, comprising:

Discarding resetting a MAC entity associated with the given cell group in response to receiving the first signaling when the state of the first node for the given cell group is the first state, the discarding resetting a MAC entity associated with the given cell group including the continuing to run the first timer; when the state of the first node for the given cell group is the second state, in response to receiving the first signaling, resetting the MAC entity associated with the given cell group, the resetting the MAC entity associated with the given cell group including the stopping of the first timer.

31. The method in a first node according to any of claims 27 or 28, comprising:

32. The method in the first node of claim 29, comprising: sending a second signaling, wherein the second signaling is triggered by the first signaling; wherein the second signaling is used to determine RRC connection reconfiguration complete for the given cell group.

33. The method in the first node of claim 30, comprising: sending a second signaling, wherein the second signaling is triggered by the first signaling; wherein the second signaling is used to determine RRC connection reconfiguration complete for the given cell group.

34. A method in a first node according to any of claims 27, 28, 32 or 33, comprising:

Starting a second timer in response to said applying said first set of configurations;

35. The method in the first node of claim 29, comprising: starting a second timer in response to said applying said first set of configurations; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

36. The method in the first node of claim 30, comprising: starting a second timer in response to said applying said first set of configurations; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

37. The method in the first node of claim 31, comprising: starting a second timer in response to said applying said first set of configurations; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

38. The method in the first node of claim 34, wherein the state of the first node for the given cell group is the latter of the first state and the second state, the starting of the second timer being performed.

39. The method in a first node according to any of claims 35-37, wherein the state of the first node for the given cell group is the latter of the first state and the second state, the starting of a second timer being performed.

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

41. The method in the second node of claim 40,

42. The method in the second node according to claim 40 or 41,

43. The method in a second node according to any of the claims 40 or 41,

44. A method in a second node according to any of claims 40 or 41, comprising:

45. The method in the second node of claim 42, comprising: receiving second signaling, wherein the second signaling is triggered by the first signaling; wherein the second signaling is used to determine RRC connection reconfiguration complete for the given cell group.

46. The method in the second node of claim 43, comprising: receiving second signaling, wherein the second signaling is triggered by the first signaling; wherein the second signaling is used to determine RRC connection reconfiguration complete for the given cell group.

47. The method in a second node according to any of claims 40, 41, 45 or 46,

48. The method in the second node of claim 42, wherein a second timer is started in response to the first set of configurations being applied; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

49. The method in the second node of claim 43, wherein a second timer is started in response to the first set of configurations being applied; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

50. The method of claim 44, wherein a second timer is started in response to the first set of configurations being applied; wherein successful completion of the change of the primary cell of the given cell group from the source cell to the target cell is used to determine to stop the second timer; the second timer expiration is used to indicate that the primary cell of the given cell group failed to change from the source cell to the target cell.

51. The method in the second node of claim 47, wherein,

52. The method in a second node according to any of the claims 48-50,