CN117135676A - Method and apparatus in a node for wireless communication - Google Patents

Abstract

A method and apparatus in a node for wireless communication is disclosed. The first node determines that a physical layer problem occurs in a first service cell; starting a first timer as a response to the phrase determining that the physical layer problem occurs in the first serving cell; transmitting a first signal; the first receiver, in response to the first signal being triggered, starting a second timer; monitoring a second signal during operation of the second timer, maintaining a wireless connection and the second timer continuing to count when the first timer expires; the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell. Aiming at the problem that a first timer in a large-delay network expires to trigger the radio link failure, the application provides a method that the first timer does not expire to trigger the radio link failure during the operation of the second timer, and expands the second timer to match the large-delay network.

Description

Method and apparatus in a node for wireless communication

The application is a divisional application of the following original application:

Filing date of the original application: 2021, 03, 24

Number of the original application: 202110313749.1

-the name of the application of the original application: method and apparatus in a node for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus with a large delay.

Background

When the Counter (Counter) N310 reaches a maximum value, indicating that a physical layer problem occurs, and starting a (Start) timer T310; when the timer T310 expires (Expire), it is determined that a radio link failure has occurred. During the operation of timer T310, when the UE satisfies the measurement configuration and transmits a measurement report, timer T312 is started; stopping the timer T312 when an RRC connection reconfiguration message carrying synchronization information is received; when the timer T312 expires, an RRC connection re-establishment procedure is performed or an rrc_idle state is entered. When the MCG (Master Cell Group ) fails in radio link, if the condition of MCG link fast recovery (Fast MCG Link Recovery) is satisfied, the UE transmits an MCG failure information message and starts a timer T316; stopping the timer T316 when the UE receives the RRC connection release message or the RRC connection reconfiguration message and completes RRC connection reconfiguration; when the timer T316 expires, the UE performs an RRC connection re-establishment procedure. The current radio link failure (Radio Link Failure, RLF) related timers (Timer) are only for the terrestrial network (Terrestrial Network ). In face of the increasing communication demands, 3GPP (3 rd Generation Partner Project, third generation partnership project) starts to study Non-terrestrial network communication (Non-Terrestrial Network, NTN), and 3GPP ran#80 conferences decide to develop a "NR (New Radio, new air interface) supporting solution for Non-terrestrial network" study project.

Disclosure of Invention

The transmission delay of the NTN network is much longer than that of the TN network. Some timers have little relation with transmission delay, such as timer T310; however, some timers require signaling interaction between the UE and the base station during operation, and are inevitably subject to large delays, such as timer T312. When the UE starts T312, it needs to wait to receive the RRC connection reconfiguration message during the operation of timer T312, and the delay time for GEO (Geostationary satellite, geosynchronous satellite) may reach 500ms, during which expiration of timer T310 easily occurs, resulting in the timer T312 to stop. Similar problems occur for timers T310 and T316. Thus, in NTN, joint design for delay sensitive timers and delay insensitive timers is required.

The present application provides a solution to the above problems. In the description for the above problems, NTN scenes are taken as an example; the application is also applicable to scenes such as TN, and achieves technical effects similar to those in NTN scenes. Furthermore, the adoption of a unified solution for different scenarios also helps to reduce hardware complexity and cost.

It should be noted that, in the case of no conflict, the embodiments 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:

determining that a physical layer problem occurs in the first serving cell; starting a first timer as a response to the phrase determining that the physical layer problem occurs in the first serving cell;

transmitting a first signal;

starting a second timer in response to the first signal being triggered; monitoring a second signal during operation of the second timer, maintaining a wireless connection and the second timer continuing to count when the first timer expires;

wherein the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

As one embodiment, the problems to be solved by the present application include: the RLF timer in TN is not applicable in NTN.

As one embodiment, the problems to be solved by the present application include: the applicability of the timer T312 in NTN is poor.

As one embodiment, the problems to be solved by the present application include: when the UE transmits a signal, the subsequent procedure of RLF may be performed due to expiration of T310 when no response signal is received due to a large delay.

As one embodiment, the problems to be solved by the present application include: a joint design is required between the delay insensitive timer and the delay sensitive timer.

As one embodiment, the features of the above method include: the delay insensitive timer in NTN does not affect the operation of the delay sensitive timer.

As one embodiment, the features of the above method include: the second timer does not stop due to expiration of the first timer.

As one embodiment, the features of the above method include: in NTN, after the UE transmits the first signal, a second timer is used to determine the time to monitor the second signal, during which the first timer does not expire.

As one embodiment, the features of the above method include: the second timer is associated with a maintaining base station of the first serving cell.

As one embodiment, the features of the above method include: the second timer is associated with NTN.

As one embodiment, the features of the above method include: the second timer comprises an NTN-specific timer.

As one embodiment, the features of the above method include: the second timer includes a timer T312.

As one embodiment, the features of the above method include: the first timer includes a timer T310.

As one example, the benefits of the above method include: after the first signal is triggered, the probability that the second signal is received is increased.

As one example, the benefits of the above method include: a second timer specific to NTN is defined.

As one example, the benefits of the above method include: the second timer is decoupled from the timer T310.

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

resetting the first counter and the second counter in response to the first signal being triggered;

wherein the first counter reaching a first value is used to determine to start the first timer; the second counter reaching a second value is used to determine to stop the first timer; the first value and the second value are non-negative integers.

As one embodiment, the features of the above method include:

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

after the first event occurs and when the second timer expires, determining that a radio connection failure has occurred;

transmitting a first signaling as a response to the behavior determining that the radio connection failure occurs;

wherein the first signaling is used to request an update of a wireless connection, the first event includes the second timer being running and the first timer expiring.

As one embodiment, the features of the above method include: the second timer expires and the first timer that occurred during operation of the second timer is used to determine that a radio connection failure occurred.

As one embodiment, the features of the above method include: RLF is triggered as soon as the second timer expires.

As one embodiment, the features of the above method include: link recovery is performed when the second timer expires and when the first timer expires during operation of the second timer.

As one embodiment, the features of the above method include: the RRC connection re-establishment is performed when the second timer expires and when the first timer expiration occurs during the second timer running.

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

receiving a second signaling;

wherein the second signaling is used to indicate a first set of parameters for the second timer; the first set of parameters includes a first expiration value and a first offset, a sum of the first expiration value and the first offset being used to determine an expiration time of the second timer.

As one embodiment, the features of the above method include: and extending the running time of the second timer by the first offset.

As one embodiment, the features of the above method include: and delaying starting the second timer by the first offset.

As one embodiment, the features of the above method include: configuration of timers for TN is multiplexed as much as possible in NTN.

As one embodiment, the features of the above method include: for NTN, enhancements are made on the basis of the TN's timer.

According to an aspect of the application, the first set of parameters comprises a first indicator, which is used to determine whether the second timer is valid.

As one embodiment, the features of the above method include: a switch is provided for the second timer.

As one embodiment, the features of the above method include: the second timer is set to active only when configuration is required.

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

receiving the second signal; in response to receiving the second signal, the second timer is stopped.

As one embodiment, the features of the above method include: the receipt of the second signal is used to trigger the stopping of the second timer.

According to one aspect of the application, the first signal is transmitted during operation of the first timer.

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

receiving a first signal;

transmitting a second signal in response to the first signal being received;

wherein the first timer is started in response to determining that the first serving cell has a physical layer problem; in response to the first signal being triggered, a second timer is started; during operation of the second timer, the second signal is monitored, when the first timer expires, a wireless connection is maintained and the second timer continues to count; the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

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

in response to the first signal being triggered, the first counter and the second counter are reset;

wherein the first counter reaching a first value is used to determine to start the first timer; the second counter reaching a second value is used to determine to stop the first timer; the first value and the second value are non-negative integers.

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

receiving a first signaling in response to determining that a radio connection failure has occurred;

wherein the radio connection failure is determined to occur after the occurrence of the first event and when the second timer expires; the first signaling is used to request an update of a wireless connection, the first event includes the second timer being running and the first timer expiring.

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

sending a second signaling;

wherein the second signaling is used to indicate a first set of parameters for the second timer; the first set of parameters includes a first expiration value and a first offset, a sum of the first expiration value and the first offset being used to determine an expiration time of the second timer.

According to an aspect of the application, the first set of parameters comprises a first indicator, which is used to determine whether the second timer is valid.

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

in response to receiving the second signal, the second timer is stopped.

According to one aspect of the application, the first signal is transmitted during operation of the first timer.

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

a first receiver for determining that a physical layer problem occurs in a first serving cell; starting a first timer as a response to the phrase determining that the physical layer problem occurs in the first serving cell;

a first transmitter that transmits a first signal;

the first receiver, in response to the first signal being triggered, starting a second timer; monitoring a second signal during operation of the second timer, maintaining a wireless connection and the second timer continuing to count when the first timer expires;

wherein the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

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

a second receiver that receives the first signal;

a second transmitter that transmits a second signal in response to the first signal being received;

Wherein the first timer is started in response to determining that the first serving cell has a physical layer problem; in response to the first signal being triggered, a second timer is started; during operation of the second timer, the second signal is monitored, when the first timer expires, a wireless connection is maintained and the second timer continues to count; the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

As an embodiment, the application aims at the problem that the first timer expires to trigger the radio link failure in the large-delay network, and proposes a method that the first timer expires without triggering the radio link failure during the operation of the second timer, and expands the second timer to match the large-delay network. Compared with the traditional scheme, the application has the following advantages;

in NTN, when timer T310 expires, timer T312 does not stop running;

the second timer may be configured according to parameters of a maintenance base station of the first serving cell;

increasing the probability that the second signal is received after the first signal is triggered;

When the second timer is running, the expiration of the first timer does not trigger a radio link failure;

defining a second timer dedicated to NTN;

the second timer is decoupled from the timer T310;

extending the length of the second timer by the first offset.

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 illustrates a flow chart of the transmission of a first signal and a second signal according to one 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 flow chart of wireless signal transmission according to an embodiment of the application;

FIG. 6 shows a schematic diagram of a first timer running when a second timer is started, according to one embodiment of the application;

FIG. 7 shows a schematic diagram of a first timer not running when a second timer is started, according to one embodiment of the application;

FIG. 8 illustrates a schematic diagram of a first offset being used to determine a length of time a second timer delays starting in accordance with one embodiment of the present application;

FIG. 9 illustrates a schematic diagram in which a first offset is used to determine the length of time a second timer is extended to run, according to one embodiment of the application;

FIG. 10 shows a schematic diagram of a second timer being started for determining resetting a first counter and a second counter according to one embodiment of the application;

FIG. 11 shows a schematic diagram where a first indicator is used to determine whether a second timer is active, according to one embodiment of the application;

FIG. 12 shows a block diagram of a processing arrangement for use in a first node according to an embodiment of the application;

fig. 13 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 signal and a second signal 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 determines in step 101 that a physical layer problem occurs in a first serving cell; starting a first timer as a response to the phrase determining that the physical layer problem occurs in the first serving cell; transmitting a first signal in step 102; starting a second timer in step 103 in response to the first signal being triggered; monitoring a second signal during operation of the second timer, maintaining a wireless connection and the second timer continuing to count when the first timer expires; wherein the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

As an embodiment, the first Serving Cell includes a Serving Cell of the first node.

As an embodiment, the first serving Cell includes a Primary Cell (PCell).

As an embodiment, the first serving Cell includes a Primary SCG Cell (PSCell) of a secondary Cell group.

As an embodiment, the first serving Cell includes a Special Cell (SpCell).

As an embodiment, the first serving Cell includes a Secondary Cell (SCell).

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

As an embodiment, the first serving cell comprises an MCG.

As an embodiment, the first serving cell comprises a secondary cell group (Secondary Cell Group ).

As an embodiment, the first serving cell comprises a cell in an MCG.

As an embodiment, the first serving cell comprises a cell in an SCG.

As an embodiment, the maintaining base station of the first serving cell includes a Master Node (MN).

As an embodiment, the maintenance base station of the first serving cell includes a Secondary Node (SN).

As one embodiment, the sentence determining that the first serving cell has a physical layer problem includes: detecting (Detecting) that the physical layer problem occurs to the first serving cell.

As one embodiment, the sentence determining that the first serving cell has a physical layer problem includes: indicating the first serving cell that the physical layer problem occurs.

As one embodiment, the physical layer problem is determined to occur with the first serving cell by radio link monitoring (Radio Link Monitoring, RLM).

As one embodiment, the physical layer problem includes: n310 out-of-sync indications (indications) from Lower layers are received.

As one embodiment, the sentence "starting a first timer in response to determining that the physical layer problem occurs with the first serving cell" includes: and starting the first timer when the physical layer problem of the first service cell is detected.

As one embodiment, the sentence "starting a first timer in response to determining that the physical layer problem occurs with the first serving cell" includes: the first timer is started when the number of out-of-sync indications (indications) received from a Lower layer reaches the maximum value of the first counter.

As one embodiment, the sentence "starting a first timer in response to determining that the physical layer problem occurs with the first serving cell" includes: when the first counter reaches a maximum value, the first timer is started.

As one embodiment, the sentence "starting a first timer in response to determining that the physical layer problem occurs with the first serving cell" includes: when the counter N310 reaches a maximum value, the first timer is started.

As one embodiment, the sentence "starting a first timer in response to determining that the physical layer problem occurs with the first serving cell" includes: when the timer T310 is running, the first timer is started.

As one embodiment, the sentence "starting a first timer in response to determining that the physical layer problem occurs with the first serving cell" includes: during the operation of timer T310, when a measurement report for one measurement identity is triggered and the first timer is configured, the first timer is started.

As one embodiment, the sentence "starting a first timer in response to determining that the physical layer problem occurs with the first serving cell" includes: starting the first timer includes determining that the physical layer problem occurred with the first serving cell.

As one embodiment, the sentence "starting a first timer in response to determining that the physical layer problem occurs with the first serving cell" includes: determining that the physical layer problem occurs with the first serving cell is a condition for the starting of the first timer.

As one embodiment, the starting the first timer includes the first timer starting to count.

As one embodiment, the starting the first timer includes starting (Start) the first timer.

As an embodiment, said starting the first timer comprises said first timer starting to run.

As an embodiment, the first timer is used to determine that the first serving cell has a physical layer problem.

As an embodiment, the physical layer problem recovery is used to stop the first timer during the first timer run.

As an embodiment, the first timer includes T310.

As an embodiment, the first timer is a timer started earlier than the timer T310.

As an embodiment, the first timer is a timer that is started later than the timer T310.

As an embodiment, the first timer is a timer started during the running of the timer T310.

As one embodiment, the first timer is maintained by the MCG.

As one embodiment, the first timer is maintained by an SCG.

As an embodiment, the first timer is associated to the first serving cell.

As an embodiment, the first timer is dedicated to the first serving cell.

As an embodiment, the first timer is configured at the first serving cell.

As an embodiment, the first timer is maintained by the first serving cell.

As an embodiment, the timing of the first timer is independent of the timing of the second serving cell.

As an embodiment, the timing of the first timer is related to the timing of the second serving cell.

As an embodiment, the second serving cell and the first serving cell serve the first node through dual connectivity.

As an embodiment, the second serving Cell includes a PSCell (Primary SCG Cell, primary Cell of secondary Cell group).

As an embodiment, the second serving cell comprises one UE.

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

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

As an embodiment, the receiver of the first signal comprises a maintenance base station of the first serving cell, and the first signal is forwarded to the serving base station of the first serving cell through the serving base station of the second serving cell.

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

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

As an embodiment, the second signal comprises PHY (Physical) layer signaling.

As an embodiment, the second signal comprises MAC (Media access control, medium access control) layer signaling.

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

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

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

As an embodiment, the first signal comprises an RRC (Radio Resource Control ) message.

As an embodiment, the first signal includes all IEs (Information Element, information elements) in one RRC message.

As an embodiment, the first signal comprises a partial IE (Information Element ) in one RRC message.

As an embodiment, the first signal includes all fields (files) in one IE in one RRC message.

As an embodiment, the first signal includes a partial field (filled) in an IE in an RRC message.

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

As an embodiment, the first signal comprises a Sidelink (sidlink) signaling.

As an embodiment, the signaling radio bearer of the first signal includes SRB1 (Signaling Radio Bearer 1).

As an embodiment, the signaling radio bearer of the first signal comprises SRB3 (Signaling Radio Bearer 3).

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

As an embodiment, the first signal comprises a measurement result (Measurement Relust).

As an embodiment, the first signal comprises MeasurementReport.

As an embodiment, the first signal comprises an RRCConnectionRequest.

As an embodiment, the first signal comprises an RRCConnectionResumeRequest.

As one embodiment, the first signal comprises an RRCEarlyDataRequest.

As an embodiment, the first signal comprises an mcgfailurenformation message.

As an embodiment, the first signal includes a FailureInformation2 message.

As an embodiment, the first signal comprises mcgfailurenformationeutra.

As an embodiment, the first signal comprises mcgfailurenformationnr.

As an embodiment, the first signal comprises SCGFailureInformation.

As an embodiment, the first signal comprises a scgfailureinformation nr.

As an embodiment, the first signal comprises scgfailurenformationeutra.

As an embodiment, the first signal includes a sidlinkiueinformation.

As an embodiment, the first signal includes a sidinkueinfformationnr.

As an embodiment, the first signal includes a sidinkueinfformationeutra.

As an embodiment, the first signal includes FailureInformation.

As an embodiment, the first signal comprises uliformationtransfermrdc. As one embodiment, the phrase responsive to the first signal being triggered includes: as a response to the first signal being sent.

As one embodiment, the phrase is sent as a response to the first signal comprising: a next action when the first signal is sent.

As one embodiment, the phrase is sent as a response to the first signal comprising: a series of actions after the first signal is transmitted.

As one embodiment, the phrase is sent as a response to the first signal comprising: when the first signal is transmitted.

As one embodiment, the phrase responsive to the first signal being triggered includes: when the first signal is ready to be transmitted.

As one embodiment, the phrase responsive to the first signal being triggered includes: during the process of the content of the first signal being set.

As one embodiment, the phrase responsive to the first signal being triggered includes: when the content in the first signal is set.

As one embodiment, the phrase responsive to the first signal being triggered includes: before the content of the first signal is set.

As one embodiment, the phrase responsive to the first signal being triggered includes: before the first signal is transmitted.

As one embodiment, the phrase responsive to the first signal being triggered includes: when the first signal is generated.

As one embodiment, the phrase responsive to the first signal being triggered includes: after the first signal is generated.

As one embodiment, the phrase responsive to the first signal being triggered includes: before the first signal is generated.

As a sub-embodiment of this embodiment, the phrase the first signal is generated comprising: the content in the first signal is set.

As a sub-embodiment of this embodiment, the phrase the first signal is generated comprising: content in the first signal is determined.

As one embodiment, the phrase responsive to the first signal being triggered includes: after the first signal is generated, and before the first signal is delivered to a lower layer including at least one of a PDCP layer or an RLC layer or a MAC layer or a PHY layer. As an embodiment, the act of starting the second timer is triggered by the first signal.

As an embodiment, the first signal is triggered when an Entry Condition (Entry Condition) corresponding to the first event is met.

As a sub-embodiment of this embodiment, the first event is related to a measurement.

As a sub-embodiment of this embodiment, the first event is time dependent.

As a sub-embodiment of this embodiment, the first Event includes at least one of Event A1, or Event A2, or Event A3, or Event A4, or Event A5, or Event A6, or Event B1, or Event B2, or Event I1, or Event C2 in section 5.5.4 in TS 38.331.

As a sub-embodiment of this embodiment, the entry condition includes Entering condition in section 5.5.4 in TS 38.331.

As a sub-embodiment of this embodiment, the entry condition corresponding to the first event is determined to be satisfied according to section 5.5.4 in TS 38.331.

As a sub-embodiment of this embodiment, the entry condition comprises the measurement result not being smaller or larger than a threshold value.

As a sub-embodiment of this embodiment, the entry condition comprises the measurement result not being greater than or less than a threshold value.

As an embodiment, the first signal is triggered when an entry condition corresponding to the first event is met.

As an embodiment, the first signal is sent in response to the first signal being triggered.

As an embodiment, the content in the first signal is set and the first signal is transmitted in response to the first signal being triggered.

As an embodiment, the second timer is started and the first signal is sent in response to the first signal being triggered.

As an embodiment, the second timer is started and the first signal is sent when the first timer is running in response to the first signal being triggered.

In one embodiment, the first signal is sent when the first timer is not running in response to the first signal being triggered, and the second timer is not started.

In one embodiment, the second timer is started in response to the first signal being triggered, and the first signal is sent.

As an embodiment, the content in the first signal is set first and then the second timer is started as a response to the first signal being triggered.

As one embodiment, the phrase that the first signal is triggered includes: a measurement reporting procedure (measurement reporting procedure) is initiated.

As one embodiment, the phrase that the first signal is triggered includes: a measurement reporting procedure is initiated.

As one embodiment, the phrase that the first signal is triggered includes: the condition for initiating a measurement reporting procedure is fulfilled.

As one embodiment, the phrase that the first signal is triggered includes: the entry condition corresponding to the first event is satisfied.

As an embodiment, the second timer is started when the first signal is triggered.

As a sub-embodiment of this embodiment, the first timer is running when the first signal is triggered.

As a sub-embodiment of this embodiment, the first timer is not running when the first signal is triggered.

As one embodiment, the second timer is started when the first signal is triggered and the first timer is running.

As an embodiment, said starting the second timer comprises said second timer starting to count.

As an embodiment, said starting the second timer comprises starting (Start) the second timer.

As an embodiment, the starting the second timer includes the second timer starting to run.

As one embodiment, expiration of the second timer is used to determine that the first serving cell has failed a radio connection.

As an embodiment, the second timer start is used to determine to perform link recovery.

As an embodiment, the second timer is started to be used for determining that an uplink signal is transmitted.

As an embodiment, the second timer comprises an RRC timer dedicated to NTN (Specific).

As an embodiment, the second timer is a timer started earlier than the first timer.

As an embodiment, the second timer is a timer that is started later than the first timer.

As an embodiment, the second timer is a timer started during the operation of the first timer.

As an embodiment, the second timer is maintained by the MCG.

As one embodiment, the second timer is maintained by an SCG.

As an embodiment, the second timer is associated to the first serving cell.

As an embodiment, the second timer is dedicated to the first serving cell.

As an embodiment, the second timer is configured at the first serving cell.

As an embodiment, the second timer is maintained by the first serving cell.

As an embodiment, the timing of the second timer is independent of the timing of the second serving cell.

As an embodiment, the timing of the second timer is related to the timing of the second serving cell.

As an embodiment, the phrase during the second timer run comprises: when the second timer is in an operating state.

As an embodiment, the phrase during the second timer run comprises: when the second timer is running.

As an embodiment, the phrase during the second timer run comprises: the second timer is started and does not expire.

As one embodiment, the phrase monitoring the second signal includes waiting to receive the second signal.

As an embodiment, the phrase monitoring the second signal includes monitoring a PDCCH (Physical Downlink Control Channel ).

As one embodiment, the phrase monitoring the second signal includes monitoring the second signal by energy detection.

As one embodiment, the phrase monitoring the second signal includes monitoring the second signal by coherent detection.

As one embodiment, the phrase monitoring the second signal includes monitoring the second signal by broadband detection.

As one embodiment, the phrase monitoring the second signal includes monitoring the second signal by correlation detection.

As one embodiment, the phrase monitoring the second signal includes monitoring the second signal by synchronous detection.

As one embodiment, the phrase monitoring the second signal includes monitoring the second signal by waveform detection.

As one embodiment, the phrase monitoring the second signal includes monitoring the second signal by maximum likelihood detection.

As an embodiment, the first node waits to receive the second signal during operation of the second timer.

As an embodiment, the first node receives the second signal to stop the second timer during operation of the second timer.

As one embodiment, the first node performs RRC reestablishment without receiving the second signal when the second timer expires.

As one embodiment, the first node performs radio link recovery without receiving the second signal when the second timer expires.

As one embodiment, the first node enters the rrc_idle state when the second timer expires without receiving the second signal.

As one embodiment, the phrase that the first timer expires includes: the run time of the first timer reaches an expiration value.

As one embodiment, the phrase that the first timer expires includes: the timing of the first timer reaches a maximum value.

As one embodiment, the phrase that the first timer expires includes: the timing of the first timer reaches an expiration value.

As one embodiment, the phrase that the first timer expires includes: the first timer is disabled.

As one embodiment, the phrase that the first timer expires includes: the timing of the first timer reaches a preset value.

As one embodiment, the second timer not running when the first timer expires is used to determine that a radio connection failure has occurred.

As one embodiment, the second timer is running when the first timer expires and is not used to determine that a radio connection failure has occurred.

As one embodiment, the second timer is running when the first timer expires is used to determine that no radio connection failure has occurred.

For one embodiment, the phrase maintaining a wireless connection includes: the next action is not triggered.

For one embodiment, the phrase maintaining a wireless connection includes: RLF is not triggered.

For one embodiment, the phrase maintaining a wireless connection includes: the current RRC connected state is maintained.

For one embodiment, the phrase maintaining a wireless connection includes: the wireless connection is not updated.

As one embodiment, the phrase the second timer continuing to count comprises: the second timer continues to run.

As one embodiment, the phrase the second timer continuing to count comprises: the operation of the second timer is not affected by the expiration of the first timer.

As one embodiment, the phrase the second timer continuing to count comprises: the timing of the second timer is independent of the expiration of the first timer.

As an embodiment, during operation of the second timer, when the first timer expires, the second signal continues to be awaited for receipt.

As an embodiment, during operation of the second timer, when the first timer expires, no radio connection failure is triggered.

As one embodiment, when the first timer expires, and the second timer is not running, it is used to determine that the radio connection failed.

As an embodiment, when the first timer expires and the second timer is not running is a condition to determine that the radio connection fails.

As one embodiment, the phrase that the first signal is used to trigger the second signal includes: the second signal is a response of the first signal.

As one embodiment, the phrase that the first signal is used to trigger the second signal includes: transmitting the first signal is used to trigger monitoring of the second signal.

As one embodiment, the phrase that the second signal is used to trigger the second signal includes: when the second signal is transmitted, if a receiver of the second signal receives the second signal, the second signal needs to be fed back.

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

As an embodiment, the sender of the second signal comprises a maintaining base station of the second serving cell.

As an embodiment, the sender of the second signal comprises a maintenance base station of the first serving cell, and the second signal is forwarded to the serving base station of the first serving cell through the serving base station of the second serving cell.

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

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

As an embodiment, the second signal comprises PHY (Physical) layer signaling.

As an embodiment, the second signal comprises MAC (Media access control, medium access control) layer signaling.

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

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

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

As an embodiment, the second signal comprises an RRC (Radio Resource Control ) message.

As an embodiment, the second signal includes all IEs (Information Element, information elements) in one RRC message.

As an embodiment, the second signal comprises a partial IE (Information Element ) in one RRC message.

As an embodiment, the second signal includes all fields (files) in one IE in one RRC message.

As an embodiment, the second signal includes a partial field (filled) in an IE in an RRC message.

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

As an embodiment, the second signal comprises a Sidelink (sidlink) signaling.

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

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

As an embodiment, the logical channel carrying the second signal comprises DCCH (Dedicated Control Channel ).

As an embodiment, the second signal comprises dlinformatiiontransfermrdc.

As an embodiment, the second signal comprises rrcrecon configuration.

As an embodiment, the second signal comprises RRCConnectionReconfiguration.

As an embodiment, the second signal comprises RRCRelease.

As an embodiment, the second signal comprises RRCConnectionRelease.

As an embodiment, the second signal comprises Msg2.

As an embodiment, the second signal comprises Msg4.

As an embodiment, the second signal comprises MsgB.

As an embodiment, the second signal comprises RRCConnectionSetup.

As an embodiment, the second signal comprises RRCConnectionReject.

As an embodiment, the second signal comprises rrcconnectionresponse.

As one embodiment, the second signal comprises RRCEarlyDataComplete.

As an embodiment, the second signal comprises RRCConnectionRelease.

As an embodiment, the phrase that the second timer relates to a parameter of a maintaining base station of the first serving cell includes: parameters of the maintenance base station of the first serving cell are used to determine parameters of the second timer.

As an embodiment, the phrase that the second timer relates to a parameter of a maintaining base station of the first serving cell includes: the second timer is configured according to parameters of the maintenance base station of the first serving cell.

As an embodiment, the parameter of the maintaining base station of the first serving cell includes a Timing Advance (TA).

As an embodiment, the parameter of the maintaining base station of the first serving cell includes a Round Trip Time (RTT).

As an embodiment, the parameter of the maintaining base station of the first serving cell comprises a base station type.

As a sub-embodiment of this embodiment, the base station type includes NTN (Non-terrestrial network communication, non-Terrestrial Network) base stations.

As an subsidiary embodiment of this sub-embodiment, the NTN base station includes one of GEO (Geostationary Earth Orbiting, geosynchronous Earth Orbit) satellite, MEO (Medium Earth Orbiting, medium Earth Orbit) satellite, LEO (Low Earth Orbit) satellite, HEO (Highly Elliptical Orbiting, high elliptical Orbit) satellite, airborne Platform (aerial platform).

As a sub-embodiment of this embodiment, the base station type includes a TN (terrestrial network communication, terrestrial Network) base station.

As an subsidiary embodiment of this sub-embodiment, the TN base station includes one of a cellular base station (Cellular Base Station), a Micro Cell (Micro Cell) base station, a Pico Cell (Pico Cell) base station, a home base station (Femtocell), an eNB, and a gNB.

As one embodiment, the parameter of the first serving cell maintaining a base station includes a base station height.

As a sub-embodiment of this embodiment, the higher the base station height, the longer the maximum run time of the second timer.

As a sub-embodiment of this embodiment, the lower the base station height, the shorter the maximum run time of the second timer.

As a sub-embodiment of this embodiment, the maximum run time of the second timer is related to the base station altitude.

As a sub-embodiment of this embodiment, the parameters of the maintaining base station of the first serving cell are determined from the base station altitude.

As an embodiment, the parameter of the maintaining base station of the first serving cell comprises a PLMN.

As a sub-embodiment of this embodiment, the PLMN is used to determine that the maintenance base station of the first serving cell is an NTN base station.

As a sub-embodiment of this embodiment, the PLMN is used to determine that the maintenance base station of the first serving cell is a TN base station.

As an embodiment, the first timer includes T310.

As an embodiment, the first signal comprises MeasurementReport.

As an embodiment, the first signal comprises mcgfailurenformation.

As an embodiment, the first signal includes a Preamble.

As an embodiment, the sending of the first signal is before the starting of the first timer.

As an embodiment, the sending of the first signal is after the starting of the first timer.

As an embodiment, the first signal is transmitted during operation of the first timer.

As an embodiment, the first timer is not running when the first signal is triggered.

As an embodiment, the first timer is timer T310 and the second timer is timer T312.

As an embodiment, the timer comprises a timer.

As an embodiment, the Timer includes a Timer.

As an embodiment, the first timer comprises a timer T310.

As an embodiment, the first timer comprises a timer T312.

As an embodiment, the second timer comprises a timer T312.

As an embodiment, the second timer comprises a timer T316.

As an embodiment, the second timer comprises a timer T300.

As an embodiment, the second timer comprises a timer T301.

As an embodiment, the second timer comprises a timer T304.

As an embodiment, the second timer includes a timer T311.

As an embodiment, the second timer includes a timer T319.

As an embodiment, the second timer comprises a timer dedicated to NTN.

As an embodiment, the second timer comprises a timer used to determine a radio connection failure.

As an embodiment, the first timer comprises a timer T310 and the second timer comprises a timer T312.

As an embodiment, the first timer comprises a timer T310 and the second timer comprises a timer T316.

As an embodiment, the first timer comprises a timer T312 and the second timer comprises a timer T316.

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 diagram of a network architecture 200 of a 5G NR (New Radio, new air interface), LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System)/EPS (Evolved Packet System ) 200 by some other suitable terminology. The 5GS/EPS200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access network) 202,5GC (5G Core Network)/EPC (Evolved Packet Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified Data Management, unified data management) 220, and 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 NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology. The gNB203 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. gNB203 is connected to 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (User Plane Function ) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.

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

As one embodiment, the UE201 supports transmissions in a non-terrestrial network (NTN).

As an embodiment, the UE201 supports transmissions in a large latency difference network.

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

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

As an embodiment, the UE201 is an aircraft.

As an embodiment, the UE201 is a vehicle terminal.

As an embodiment, the UE201 is a relay.

As an example, the UE201 is a ship.

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

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

As an embodiment, the UE201 is a device supporting low latency and high reliability transmissions.

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

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

As an embodiment, the gNB203 supports transmissions in a large latency difference network.

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

As an example, the gNB203 is a macro cell (Marco cell) base station.

As one example, the gNB203 is a Micro Cell (Micro Cell) base station.

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

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

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

As an embodiment, the gNB203 is a flying platform device.

As one embodiment, the gNB203 is a satellite device.

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

As an embodiment, the gNB203 is a gateway.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture 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 first signal in the present application is generated in the RRC306.

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

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

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

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

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

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

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

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 second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

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

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

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, the first communication device 450 at least: determining that a physical layer problem occurs in the first serving cell; starting a first timer as a response to the phrase determining that the physical layer problem occurs in the first serving cell; transmitting a first signal; starting a second timer in response to the first signal being triggered; monitoring a second signal during operation of the second timer, maintaining a wireless connection and the second timer continuing to count when the first timer expires; wherein the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

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: determining that a physical layer problem occurs in the first serving cell; starting a first timer as a response to the phrase determining that the physical layer problem occurs in the first serving cell; transmitting a first signal; starting a second timer in response to the first signal being triggered; monitoring a second signal during operation of the second timer, maintaining a wireless connection and the second timer continuing to count when the first timer expires; wherein the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

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: receiving a first signal; transmitting a second signal in response to the first signal being received; wherein the first timer is started in response to determining that the first serving cell has a physical layer problem; in response to the first signal being triggered, a second timer is started; during operation of the second timer, the second signal is monitored, when the first timer expires, a wireless connection is maintained and the second timer continues to count; the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

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: receiving a first signal; transmitting a second signal in response to the first signal being received; wherein the first timer is started in response to determining that the first serving cell has a physical layer problem; in response to the first signal being triggered, a second timer is started; during operation of the second timer, the second signal is monitored, when the first timer expires, a wireless connection is maintained and the second timer continues to count; the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 is a 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. The first node U01 is a terminal; the second node N02 is a maintenance base station of the serving cell of the first node U01; 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 followingFirst node U01Receiving a second signaling in step S5101; in step S5102, it is determined that a physical layer problem occurs in the first serving cell; in response to the phrase determining that the physical layer problem occurs in the first serving cell, starting a first timer in step S5103; sent out in step S5104Sending a first signal; in response to the first signal being triggered, a second timer is started in step S5105; the first timer expires in step S5106; receiving a second signal in step S5107; in response to receiving the second signal, stopping the second timer in step S5108; the second timer expires in step S5109; after the first event occurs and when the second timer expires, it is determined in step S5110 that a radio connection failure has occurred; in response to the action determining that a radio connection failure has occurred, first signaling is sent in step S5111.

For the followingSecond node N02The second signaling is transmitted in step S5201, the first signal is received in step S5202, the second signal is transmitted in step S5203, and the first signaling is received in step S5204.

In embodiment 5, during operation of the second timer, monitoring a second signal, when the first timer expires, maintaining a wireless connection and the second timer continues to count; the first signal is used to trigger the second signal; the second timer is related to parameters of a maintenance base station of the first serving cell; the first signaling is used to request an update of a wireless connection, the first event including the second timer being running and the first timer expiring; the second signaling is used to indicate a first set of parameters for the second timer; the first set of parameters includes a first expiration value and a first offset, a sum of the first expiration value and the first offset being used to determine an expiration time of the second timer.

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

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

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

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

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

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

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

As an embodiment, the second signaling includes all IEs (Information Element, information elements) in one RRC message.

As an embodiment, the second signaling includes a partial IE (Information Element ) in one RRC message.

As an embodiment, the second signaling includes all fields (files) in one IE in one RRC message.

As an embodiment, the second signaling includes a partial field (file) in an IE in an RRC message.

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

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

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

As an embodiment, the signaling radio bearer of the second signaling includes a sidlink SRB.

As an embodiment, the logical channel carrying the second signaling comprises DCCH.

As an embodiment, the logical channel carrying the second signaling comprises an SCCH (Sidelink Control Channel ).

As an embodiment, the logical channel carrying the second signaling comprises a BCCH (Broadcast Control Channel ).

As an embodiment, the logical channels carrying the second signaling comprise a BR-BCCH (Bandwidth Reduced Broadcast Control Channel, reduced bandwidth broadcast control channel).

As an embodiment, the second signaling is used for radio resource control connection reconfiguration.

As an embodiment, the second signaling is used for radio resource control connection release.

As an embodiment, the second signaling is used for RRC connection recovery.

As an embodiment, the second signaling is used for RRC connection reconfiguration.

As an embodiment, the second signaling is used for RRC connection establishment.

As an embodiment, the second signaling is used to broadcast system information.

As an embodiment, the second signaling is used to configure the second timer.

As an embodiment, the second signaling is used to configure the first timer.

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

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

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

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

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

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

As an embodiment, the second signaling comprises SIB1 (System Information Block, system information block 1).

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

As an embodiment, the second signaling includes a SystemInformation message.

As an embodiment, the second signaling includes a SystemInformationBlockType1 message.

As an embodiment, the second signaling includes SystemInformationBlockType2.

As an embodiment, the second signaling includes RadioResourceConfigDedicated IE.

As an embodiment, the second signaling comprises SL-CommResourcePool IE.

As an embodiment, the second signaling includes RACH-ConfigCommon IE.

As an embodiment, the second signaling includes RLF-TimersAndConstants IE.

As an embodiment, the second signaling includes UE-TimersAndConstants IE.

As an embodiment, the second signaling includes a MeasObjectNR IE.

As an embodiment, the second signaling includes MeasObjectEUTRA IE.

As an embodiment, the second signaling includes MeasObjectToAddModList IE.

As an embodiment, the second signaling includes a MeasConfig IE.

As an embodiment, the second signaling includes MeasScaleFactor IE.

As an embodiment, the second signaling includes MeasIdleConfig IE.

As an embodiment, the sentence the second signaling is used to indicate the first set of parameters of the second timer comprises: the second signaling includes the first set of parameters of the second timer.

As an embodiment, the sentence the second signaling is used to indicate the first set of parameters of the second timer comprises: the first set of parameters is one or more IEs in the second signaling.

As an embodiment, the sentence the second signaling is used to indicate the first set of parameters of the second timer comprises: the first set of parameters is one or more domains in the second signaling.

As one embodiment, the phrase the first set of parameters including a first expiration value and a first offset includes: the first expiration value and the first offset are two parameters in the first set of parameters.

As one embodiment, the phrase the first set of parameters including a first expiration value and a first offset includes: the first expiration value and the first offset are two fields in the first set of parameters.

As one embodiment, the phrase the first set of parameters including a first expiration value and a first offset includes: the first set of parameters is used to indicate the first expiration value and the first offset.

As one embodiment, the phrase the first set of parameters including a first expiration value and a first offset includes: the first set of parameters is used to determine the first expiration value and the first offset.

As an embodiment, the expiration time of the second timer comprises an expiration time of the second timer.

As an embodiment, the first expiration value comprises a maximum run time of the second timer.

As an embodiment, the first expiration value comprises a time to failure of the second timer.

As an embodiment, the first expiration value comprises a maximum time the second timer is allowed to run.

As an embodiment, the second timer expires (Expire) when the running time of the second timer reaches the first expiration value.

As an embodiment, the first expiration value comprises K1 time slots.

As a sub-embodiment of this embodiment, the time slot comprises a felt.

As a sub-embodiment of this embodiment, the slot comprises symbols (symbols).

As a sub-embodiment of this embodiment, the slot comprises a SubFrame (SubFrame).

As a sub-embodiment of this embodiment, the time slot includes a Radio Frame.

As a sub-embodiment of this embodiment, the unit of the slot includes ms (milliseconds).

As a sub-embodiment of this embodiment, the time slot comprises a predefined period of time.

As a sub-embodiment of this embodiment, the unit of the slot includes m (seconds).

As an embodiment, the first offset includes K2 slots.

As an embodiment, the (k1+k2) th time slot after the first signal is triggered is used to determine the expiration time of the second timer.

As one embodiment, the second timer is not started immediately after the first signal is triggered, and is started again after a first offset is delayed, and the maximum running time of the second timer includes the first expiration value.

As an embodiment, the second timer is started immediately after the first signal is triggered, and the maximum running time of the second timer includes the sum of the first offset and the first expiration value.

As one embodiment, the first offset is used to determine the length of time the second timer is extended to run.

As one embodiment, the first offset is used to determine the length of time the second timer delays starting.

As an embodiment, the first offset is used to delay the start time and expiration time of the second timer.

As an embodiment, the first offset is used to extend the run time of the second timer.

As an embodiment, the first offset is related to a parameter of a maintaining base station of the first serving cell.

As an embodiment, the first offset is related to a type of the first signal.

As an embodiment, the first offset is related to the number of retransmissions of the first signal.

As one embodiment, the first offset includes a length of time that the first timer is running.

As an embodiment, the maximum value that the second timer is allowed to run includes the first expiration value.

As an embodiment, the maximum value that the second timer is allowed to run comprises the sum of the first expiration value and the first offset.

As one embodiment, the phrase that the first timer expires includes: the timing of the first timer reaches a maximum value.

As one embodiment, the phrase that the first timer expires includes: the first timer expires.

As one embodiment, the phrase that the first timer expires includes: the first timer is no longer active.

As an embodiment, the second signal is received.

As an embodiment, the second signal is not received.

As one embodiment, the sentence "stopping the second timer in response to receiving the second signal" includes: when the second signal is received, the second timer is stopped (Stop).

As one embodiment, the sentence "stopping the second timer in response to receiving the second signal" includes: the receipt of the second signal is used to determine to stop the second timer.

As one embodiment, the sentence "stopping the second timer in response to receiving the second signal" includes: the receipt of the second signal is used to trigger the stopping of the second timer.

As one embodiment, the sentence "stopping the second timer in response to receiving the second signal" includes: the reception of the second signal is a condition to stop the second timer.

As one embodiment, the sentence "stopping the second timer in response to receiving the second signal" includes: the second timer is stopped when the second signal is received for a time interval.

As one embodiment, the sentence "stopping the second timer in response to receiving the second signal" includes: the condition for stopping the second timer includes the second signal being received.

As an embodiment, the second signal is received comprising completing a random access with the target cell.

As an embodiment, the second signal is received refers to receiving the second signal.

As an embodiment, the second timer is stopped when the first node U01 completes random access with the target serving cell.

As one embodiment, the sentence "after the occurrence of the first event and when the second timer expires, determining that a radio connection failure has occurred" includes: the first event occurrence and the second timer expiration are used together to determine that the radio connection failure occurred.

As one embodiment, the sentence "after the occurrence of the first event and when the second timer expires, determining that a radio connection failure has occurred" includes: the first event occurrence and the second timer expiration are used together to trigger the radio connection failure.

As one embodiment, the sentence "after the occurrence of the first event and when the second timer expires, determining that a radio connection failure has occurred" includes: when the first event occurs and the second timer expires, it is determined that the radio connection failure occurred.

For one embodiment, the phrase after the first event occurs includes: the first event has occurred.

For one embodiment, the phrase after the first event occurs includes: the first event is occurring.

As an embodiment, the first event occurrence is used to determine that the radio connection failure has occurred.

As one embodiment, expiration of the second timer is used to determine that the radio connection failure occurred.

As an embodiment, the first event occurs during the running of the second timer.

As one embodiment, the first event includes the second timer being run when the first timer expires.

As one embodiment, the first event includes the expiration of the first timer while the second timer is running.

As an embodiment, the first event occurs before the second timer expires.

As an embodiment, the first event comprises the second timer being running.

As an embodiment, the first event comprises the first timer expiring.

As one embodiment, the phrase "the first event includes the second timer being running and the first timer expiring" includes: the second timer is running and the first timer expiration is used in combination to determine the first event.

As one embodiment, the phrase "the first event includes the second timer being running and the first timer expiring" includes: the first event includes expiration of the first timer during operation of the second timer.

As one embodiment, a first indicator is generated when the first event occurs, and a radio connection failure is determined to occur when the second timer expires and the first indicator is present.

As one embodiment, the phrase that the second timer expires includes: the timing of the second timer reaches a maximum value.

As one embodiment, the phrase that the second timer expires includes: the second timer expires.

As one embodiment, the phrase that the second timer expires includes: the second timer is no longer active.

As an embodiment, the radio connection failure comprises RLF (Radio Link Failure ).

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

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

As an embodiment, the radio connection failure includes SCG link failure.

As one embodiment, the radio connection failure includes a Sidelink (Sidelink) failure.

As one embodiment, the current wireless connection is maintained when the second timer expires and the first event does not occur.

As one embodiment, when the second timer expires and the first event does not occur, no update of the wireless connection is requested.

As one embodiment, when the second timer expires and the first event does not occur, a determination is made as to whether CHO conditions are met.

As one embodiment, when the second timer expires and the first event does not occur, a determination is made as to whether a CPC condition is satisfied.

As one embodiment, RRM measurements are performed when the second timer expires and the first event does not occur.

As one embodiment, CHO is performed if there is a candidate cell satisfying CHO when the second timer expires and the first flag is not present.

As one embodiment, the sentence "send the first signaling as a response to the action determining that the radio connection failure occurs" includes: and when the wireless connection fails, sending the first signaling.

As one embodiment, the sentence "send the first signaling as a response to the action determining that the radio connection failure occurs" includes: and sending the first signaling as a subsequent action for determining that the wireless connection failure occurs.

As one embodiment, the sentence "send the first signaling as a response to the action determining that the radio connection failure occurs" includes: and sending the first signaling as a next action for determining the occurrence of the wireless connection failure.

As one embodiment, the sentence "send the first signaling as a response to the action determining that the radio connection failure occurs" includes: the act determines that a radio connection failure trigger occurs to send the first signaling.

As one embodiment, the phrase the first signaling is used to request updating of a wireless connection includes: the first signaling is used to request a change in wireless connection status.

As one embodiment, the phrase the first signaling is used to request updating of a wireless connection includes: the first signaling is used to request a radio resource control connection reconfiguration.

As one embodiment, the phrase the first signaling is used to request updating of a wireless connection includes: the first signaling is used to request a radio resource control connection release.

As one embodiment, the phrase the first signaling is used to request updating of a wireless connection includes: the first signaling is used to request a radio resource control connection re-establishment.

As one embodiment, the phrase the first signaling is used to request updating of a wireless connection includes: the first signaling is used to request configuration for a handover.

As one embodiment, the phrase the first signaling is used to request updating of a wireless connection includes: the first signaling is used to request configuration for uplink and downlink resources.

As one embodiment, the phrase the first signaling is used to request updating of a wireless connection includes: the first signaling is used to request configuration for random access.

As one embodiment, the phrase the first signaling is used to request updating of a wireless connection includes: the first signaling is used to request configuration for a handover.

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

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

As a sub-embodiment of this embodiment, the second serving cell comprises the first serving cell.

As a sub-embodiment of this embodiment, the second serving cell comprises a target cell.

As a sub-embodiment of this embodiment, the second serving cell comprises a CHO (Conditional Handover ) candidate cell.

As a sub-embodiment of this embodiment, the second serving cell comprises a target cell.

As a sub-embodiment of this embodiment, the second serving Cell includes a Cell determined by Cell Selection (Cell Selection).

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

As a sub-embodiment of this embodiment, the second serving cell comprises a maintaining base station of an SCG.

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.

As an embodiment, the first signaling includes all IEs (Information Element, information elements) in one RRC message.

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

As an embodiment, the first signaling includes all fields (files) in one IE in one RRC message.

As an embodiment, the first signaling includes a partial field (file) in an IE in an RRC message.

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

As an embodiment, the signaling radio bearer of the first signaling includes SRB0.

As an embodiment, the signaling radio bearer of the first signaling includes SRB1.

As an embodiment, the signaling radio bearer of the first signaling includes SRB3.

As an embodiment, the signaling radio bearer of the first signaling includes a sidlink SRB.

As an embodiment, the logical channel carrying the first signaling comprises DCCH.

As an embodiment, the logical channel carrying the first signaling comprises an SCCH (Sidelink Control Channel ).

As an embodiment, the first signaling is used to request RRC connection recovery.

As an embodiment, the first signaling is used to request RRC connection reconfiguration.

As an embodiment, the first signaling is used to request RRC connection re-establishment.

As an embodiment, the first signaling comprises an RRCReestablishmentRequest.

As an embodiment, the first signaling comprises an rrcconnectionreestibleshmentrequest.

As an embodiment, the first signaling comprises mcgfailurenformation.

As an embodiment, the first signaling comprises scgfailurenformation.

As an embodiment, the first signaling includes a sidinkueinformation nr.

As an embodiment, the first signaling includes a sidinkueinformation eutra.

As an embodiment, the first signaling comprises ueassistance information.

As an embodiment, the first signaling comprises ueassistance information eutra.

As an embodiment, the first signaling includes uliformationtransfermrdc.

As one embodiment, stopping the second timer includes the second timer not continuing to count.

As one embodiment, stopping the second timer includes invalidating a remaining time of the second timer.

As one embodiment, stopping the second timer includes the second timer not continuing to run.

As an example, step S5102 occurs before step S5104.

As an example, step S5102 occurs after step S5104.

As one example, step S5102 occurs concurrently with step S5104.

As an example, step S5103 occurs before step S5104.

As an example, step S5103 occurs after step S5104.

As one example, step S5103 occurs concurrently with step S5104.

As an example, step S5102 occurs before step S5105.

As an example, step S5102 occurs after step S5105.

As one example, step S5102 occurs concurrently with step S5105.

As an example, step S5103 occurs before step S5105.

As an example, step S5103 occurs after step S5105.

As one example, step S5103 occurs concurrently with step S5105.

As an embodiment, the dashed box F1 is optional.

As an embodiment, the dashed box F2 is optional.

As an embodiment, the dashed box F3 is optional.

As an embodiment, the dashed box F4 is optional.

As an embodiment, the dashed box F5 is optional.

As an embodiment, the dashed box F6 is optional.

As an example, a dashed box F1 exists.

As an example, the dashed box F1 does not exist.

As an example, a dashed box F2 exists.

As an example, the dashed box F2 does not exist.

As an example, a dashed box F3 exists.

As an example, the dashed box F3 does not exist.

As an example, a dashed box F4 exists.

As an example, the dashed box F4 does not exist.

As an example, a dashed box F5 exists.

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

As an example, a dashed box F6 exists.

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

As an embodiment, one of the dashed box F4 and the dashed box F5 exists.

As one embodiment, when the dashed box F5 is not present, the dashed box F6 is not present.

As one example, when the dashed box F5 exists, a dashed box F6 exists.

As one example, when the dashed box F5 is present, the dashed box F6 is not present.

As an embodiment, the dashed box F1 does not exist, the dashed box F2 does not exist, the dashed box F3 does not exist, the dashed box F4 does not exist, the dashed box F5 exists, and the dashed box F6 exists.

As one embodiment, dashed box F1 does not exist, dashed box F2 does not exist, dashed box F3 does not exist, dashed box F4 does not exist, dashed box F5 does exist, and dashed box F6 does not exist.

As an embodiment, the dashed box F1 does not exist, the dashed box F2 does not exist, the dashed box F3 does not exist, the dashed box F4 does not exist, the dashed box F5 exists, and the dashed box F6 exists.

As one embodiment, dashed box F1 does not exist, dashed box F2 does not exist, dashed box F3 does not exist, dashed box F4 does not exist, dashed box F5 does exist, and dashed box F6 does not exist.

As an embodiment, the dashed box F1 is present, the dashed box F2 is not present, the dashed box F3 is not present, the dashed box F4 is not present, the dashed box F5 is present, and the dashed box F6 is present.

As one embodiment, dashed box F1 is present, dashed box F2 is absent, dashed box F3 is absent, dashed box F4 is absent, dashed box F5 is present, and dashed box F6 is absent.

As an embodiment, the dashed box F1 exists, the dashed box F2 does not exist, the dashed box F3 does not exist, the dashed box F4 does not exist, the dashed box F5 exists, and the dashed box F6 exists.

As an embodiment, the dashed box F1 is present, the dashed box F2 is absent, the dashed box F3 is present, the dashed box F4 is absent, the dashed box F5 is present, and the dashed box F6 is absent.

As an embodiment, the dashed box F1 is present, the dashed box F2 is absent, the dashed box F3 is present, the dashed box F4 is present, the dashed box F5 is absent, and the dashed box F6 is absent.

As an embodiment, a dashed box F1 exists, a dashed box F2 exists, a dashed box F3 does not exist, a dashed box F4 does not exist, a dashed box F5 exists, and a dashed box F6 exists.

As an embodiment, a dashed box F1 exists, a dashed box F2 exists, a dashed box F3 does not exist, a dashed box F4 does not exist, a dashed box F5 exists, and a dashed box F6 does not exist.

As an embodiment, a dashed box F1 exists, a dashed box F2 exists, a dashed box F3 exists, a dashed box F4 does not exist, a dashed box F5 exists, and a dashed box F6 exists.

As an embodiment, a dashed box F1 exists, a dashed box F2 exists, a dashed box F3 exists, a dashed box F4 does not exist, a dashed box F5 exists, and a dashed box F6 does not exist.

As an embodiment, a dashed box F1 exists, a dashed box F2 exists, a dashed box F3 exists, a dashed box F4 exists, a dashed box F5 does not exist, and a dashed box F6 does not exist.

As an embodiment, the step S5104 precedes the step S5105.

As an embodiment, the step S5104 follows the step S5105.

Example 6

Embodiment 6 illustrates a schematic diagram of the first timer running when the second timer is started according to one embodiment of the present application. In fig. 6, a solid line box filled with oblique lines indicates a first timer; the diamond filled solid line boxes represent the second timer; the first time, the second time, the third time, and the fourth time are four times that are incremented in time.

In embodiment 6, a first node determines that a physical layer problem occurs in a first serving cell; as a response to the phrase determining that the physical layer problem occurs in the first serving cell, starting a first timer at a first time; transmitting a first signal; the first signal is transmitted during operation of the first timer; in response to the first signal being triggered, starting a second timer at a second time, monitoring a second signal during operation of the second timer; the first timer expires at a third time, when the first timer expires, the wireless connection is maintained and the second timer continues to count; the second timer expires at a fourth time; in response to receiving the second signal, the second timer is stopped.

As one embodiment, the phrase that the second timer is started during the operation of the first timer includes: the first timer running is a condition that the second timer is started.

As one embodiment, the phrase that the second timer is started during the operation of the first timer includes: the second timer is started when the first timer is running and the first signal is triggered.

As one embodiment, after the first event occurs and when the second timer expires, determining that a wireless connection failure has occurred; transmitting a first signaling as a response to the behavior determining that the radio connection failure occurs; wherein the first signaling is used to request an update of a wireless connection, the first event includes the second timer being running and the first timer expiring.

As one embodiment, the sentence the first signal is transmitted during the first timer run comprises: the first signal is sent when the first timer is running.

As one embodiment, the sentence the first signal is transmitted during the first timer run comprises: the first signal is triggered when the first timer is running.

As one embodiment, the sentence the first signal is transmitted during the first timer run comprises: the first signal is not transmitted when the first timer is running.

As one embodiment, the sentence the first signal is transmitted during the first timer run comprises: the first signal is triggered to trigger the start of the second timer when the first timer is running.

As one embodiment, the sentence the first signal is transmitted during the first timer run comprises: the first signal being sent during the first timer is a condition that the second timer is started.

As an embodiment, the first signal is transmitted at the second instant.

As an embodiment, the first timer is running when the first signal is triggered.

As an embodiment, the first signal is transmitted during operation of the first timer.

As an embodiment, the first signal is triggered during operation of the first timer and is used to trigger the start of the second timer.

As an embodiment, the difference between the third time and the first time is equal to the maximum run time of the first timer.

As an embodiment, the difference between the fourth time and the second time is equal to the maximum run time of the second timer.

As one embodiment, the first timer expires during the second timer running.

As one embodiment, the first timer does not expire during the second timer is running.

As an embodiment, the first timer is started during the operation of the second timer.

As an embodiment, the first timer is not started during the operation of the second timer.

As one embodiment, the first timer stop count comprises the first timer expiring (Expire).

As one embodiment, the first timer stopping counting includes stopping (Stop) the first timer.

As one embodiment, the second timer stop timing comprises expiration of the second timer (Expire).

As one embodiment, the second timer stopping counting comprises stopping (Stop) the second timer.

As an embodiment, the first timer comprises a timer T310.

As an embodiment, the first timer comprises a timer T312.

As an embodiment, the second timer comprises a timer T312.

As an embodiment, the second timer comprises a timer T316.

As an embodiment, the second timer comprises a timer dedicated to NTN.

As an embodiment, the second timer comprises a timer used to determine a radio connection failure.

As an embodiment, the first timer comprises a timer T310 and the second timer comprises a timer T312.

As an embodiment, the first timer comprises a timer T312 and the second timer comprises a timer T316.

Example 7

Embodiment 7 illustrates a schematic diagram of the first timer not running when the second timer is started according to one embodiment of the present application. In fig. 7, a solid line box filled with oblique lines indicates the operation time of the first timer; the solid line boxes filled with diamonds represent the run time of the second timer; the fifth time, sixth time, seventh time, and eighth time are four times of increasing time.

In embodiment 7, the first signal is transmitted at a fifth time; starting a second timer in response to the first signal being triggered; the first node determines that a physical layer problem occurs in a first service cell; starting a first timer at a sixth moment in response to the phrase determining that the physical layer problem occurs in the first serving cell; stopping timing by a first timer at a seventh moment, and when the first timer expires, maintaining wireless connection and continuing to time by a second timer; stopping timing of the second timer at the eighth moment; in response to receiving the second signal, the second timer is stopped.

As one embodiment, the phrase that the second timer does not start during the operation of the first timer includes: the first timer is not running when the second timer is started.

As one embodiment, the phrase that the second timer does not start during the operation of the first timer includes: the second timer is started irrespective of whether the first timer is running.

As one embodiment, the phrase that the second timer does not start during the operation of the first timer includes: the first timer is independent of the second timer.

As one embodiment, the first timer stop count comprises the first timer expiring (Expire).

As one embodiment, the first timer stopping counting includes stopping (Stop) the first timer.

As one embodiment, the second timer stop timing comprises expiration of the second timer (Expire).

As one embodiment, the second timer stopping counting comprises stopping (Stop) the second timer.

As an embodiment, the first signal is not transmitted during operation of the first timer.

As an embodiment, the first timer is not running when the first signal is triggered.

As an embodiment, the first timer is started during the operation of the second timer.

As one embodiment, the first timer expires during the second timer running.

As an embodiment, both the first timer being started and the expiration occurs during the second timer running.

As an embodiment, the first timer comprises a timer T310.

As an embodiment, the second timer comprises a timer T312.

As an embodiment, the second timer comprises a timer T316.

As an embodiment, the second timer comprises a timer T300.

As an embodiment, the second timer comprises a timer T301.

As an embodiment, the second timer comprises a timer T304.

As an embodiment, the second timer includes a timer T311.

As an embodiment, the second timer includes a timer T319.

Example 8

Embodiment 8 illustrates a schematic diagram in which a first offset is used to determine the length of time that a second timer delays starting, according to one embodiment of the application, as shown in fig. 8. In fig. 8, a diamond filled solid line box represents the second timer; the ninth time, tenth time, and eleventh time are three times that are incremented in time.

In embodiment 8, the first node transmits the first signal at a ninth time; the first offset is used to determine a length of time for which the second timer delays starting; determining to start the second timer at a tenth time in response to the first signal being triggered; the second timer expiring at an eleventh time; monitoring a second signal during operation of the second timer; in response to receiving the second signal, the second timer is stopped.

As one embodiment, the phrase first offset is used to determine a length of time that the second timer delays starting includes: the first offset includes a length of time that the second timer is delayed from starting.

As one embodiment, the phrase first offset is used to determine a length of time that the second timer delays starting includes: when the second timer is determined to be started, the first offset is delayed and then timing is started.

As one embodiment, the phrase first offset is used to determine a length of time that the second timer delays starting includes: and when the second timer is determined to be started, waiting for the first offset and then timing.

As one embodiment, the phrase first offset is used to determine a length of time that the second timer delays starting includes: and when the second timer meets a starting condition, delaying the first offset and then starting.

As an subsidiary embodiment of this sub-embodiment, said enabling condition comprises said first signal being triggered.

As an subsidiary embodiment of this sub-embodiment, said start condition comprises said first timer being running and said first signal being triggered.

As an subsidiary embodiment of this sub-embodiment, said start condition comprises said first timer being running and said first signal not being transmitted.

As an embodiment, the sentence "during the second timer running, monitoring the second signal" includes: the second signal is monitored from the tenth time to the eleventh time.

As an embodiment, the first node does not start the first timer from the ninth time to the tenth time.

As an embodiment, the first node does not perform radio link monitoring (Radio Link Monitoring, RLM) at the ninth time to the tenth time.

Example 9

Embodiment 9 illustrates a schematic diagram in which a first offset is used to determine the length of time that a second timer is extended run, as shown in fig. 9, according to one embodiment of the application. In fig. 9, a diamond filled dashed box represents the first offset portion of the second timer; diamond filled solid line boxes represent a first expiration value portion of the second timer; the ninth time, tenth time, and eleventh time are three times that are incremented in time.

In embodiment 9, the first node transmits the first signal at a ninth time; determining to start the second timer at a ninth time in response to the first signal being triggered; the first offset is used to determine a length of time the second timer is extended to run; the second timer expiring at an eleventh time; monitoring a second signal during operation of the second timer; in response to receiving the second signal, the second timer is stopped.

As one embodiment, the first offset portion of the second timer is used in conjunction with the first expiration value portion of the second timer to determine a maximum run time of the second timer.

As one embodiment, the phrase first offset is used to determine a length of time for which the second timer is extended to run includes: the first offset includes a length of time that the first timer is run.

As one embodiment, the phrase first offset is used to determine a length of time for which the second timer is extended to run includes: the running time of the second timer is increased by the first offset.

As one embodiment, the phrase first offset is used to determine a length of time for which the second timer is extended to run includes: the expiration time of the second timer includes a sum of a first expiration value and the first offset.

As an embodiment, the second timer run period includes a time interval from the ninth time to the eleventh time.

As an embodiment, the difference between the eleventh time and the ninth time is equal to the maximum run time of the second timer.

As an embodiment, the diamond filled dashed box and the diamond filled solid box are used together to determine the maximum run time of the second timer.

As an embodiment, the maximum run time of the second timer is equal to the sum of the first expiration value and the first offset.

As one embodiment, the expiration time of the second timer includes a maximum run time from when the first signal is triggered.

As an embodiment, the sentence "during the second timer running, monitoring the second signal" includes: the second signal is monitored from a ninth time to an eleventh time.

As one embodiment, the second timer starts counting from the ninth time, and does not stop counting at the tenth time.

Example 10

Embodiment 10 illustrates a schematic diagram in which starting a second timer is used to determine resetting a first counter and a second counter, as shown in fig. 10, according to one embodiment of the application. In fig. 10, each block represents a step, and 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.

In embodiment 10, resetting the first counter and the second counter in response to the first signal being triggered; wherein the first counter reaching a first value is used to determine to start the first timer; the second counter reaching a second value is used to determine to stop the first timer; the first value and the second value are non-negative integers.

As an embodiment, the first counter reaching the first value is used to determine that the physical layer problem occurred.

As an embodiment, the number of out-of-sync (out-of-sync) indications (indications) received from a Lower layer up to a maximum value of the first counter is used to determine that the physical layer problem occurs.

As one embodiment, the first counter is reset when a synchronization (in-sync) indication is received from a lower layer.

As an embodiment, the first counter is reset when an RRC reconfiguration message (reconfigurationWithSync) carrying a synchronization reconfiguration (rrcrecon configuration) is received.

As an embodiment, the first counter is reset when a connection re-establishment procedure is initiated.

As one embodiment, the first counter is reset when the second timer is started.

As an embodiment, the first counter is reset when the first signal is sent.

As an embodiment, the first counter is reset when the first signal is triggered.

As an embodiment, the first counter is incremented by K1 when an out-of-sync indication is received from a lower layer.

As a sub-embodiment of this embodiment, said K1 is equal to 1.

As a sub-embodiment of this embodiment, said K1 is greater than 1.

As an embodiment, the first timer is started when the first counter reaches the first value.

As an embodiment, the first counter is for the first serving cell.

As an embodiment, the first counter is for the second serving cell.

As an embodiment, the first counter is UE Specific.

As an embodiment, the first counter is Cell Specific.

As an embodiment, the first counter comprises N310.

As an embodiment, the first counter comprises N313.

As an embodiment, the first counter comprises a counter.

As an embodiment, the first counter is used for counting consecutive out-of-sync (out-sync) indications.

As an embodiment, the first counter is used to determine the number of out-of-sync indications.

As one embodiment, the second counter is reset when an out-of-sync (out-sync) indication is received from the bottom layer.

As an embodiment, the second counter is reset when an RRC reconfiguration message (reconfigurationWithSync) carrying a synchronization reconfiguration (rrcrecon configuration) is received.

As an embodiment, the second counter is reset when a connection re-establishment procedure is initiated.

As an embodiment, the second counter is reset when the second timer is started.

As one embodiment, the second counter is reset when the first signal is sent.

As an embodiment, the second counter is reset when the first signal is triggered.

As an embodiment, the second counter is incremented by K2 when a synchronization indication is received from a lower layer.

As a sub-embodiment of this embodiment, said K2 is equal to 1.

As a sub-embodiment of this embodiment, said K2 is greater than 1.

As one embodiment, the first timer is stopped when the second counter reaches the second value.

As an embodiment, the second counter is for the first serving cell.

As an embodiment, the second counter is for the second serving cell.

As an embodiment, the second counter is UE Specific.

As an embodiment, the second counter is Cell Specific.

As an embodiment, the second counter comprises N311.

As an embodiment, the second counter comprises N314.

As an embodiment, the second counter comprises a counter.

As an embodiment, the second counter is used for counting consecutive synchronization (in-sync) indications.

As an embodiment, the second counter is used to determine the number of synchronization indications.

As an embodiment, the first counter and the second counter do not count simultaneously.

As one embodiment, the first counter counts and the second counter does not count when the first timer is not running.

As an embodiment, the second counter counts while the first timer is running, and the first counter does not count.

As an embodiment, the Reset means includes Reset.

As an embodiment, the meaning of the reset includes setting to an initial value.

As an embodiment, the meaning of the reset includes setting to zero (0).

As an embodiment, the sentence "resetting the first counter and the second counter as a response to the first signal being triggered" comprises: the first counter and the second counter are reset when the first signal is triggered.

As an embodiment, the first counter is reset when the first signal is triggered.

As an embodiment, the second counter is reset when the first signal is triggered.

As one embodiment, the phrase resetting the first counter and the second counter comprises: the values of the first counter and the second counter are set to 0.

As an embodiment, the first value comprises a maximum value of the first counter.

As an embodiment, the first value is configurable.

As an embodiment, the first value is preconfigured.

As an embodiment, the first value is of fixed size.

As an embodiment, the first value is a non-negative integer.

As an embodiment, the first value comprises the N310.

As one embodiment, the first value includes the

As an embodiment, the first value is equal to 20.

As an embodiment, the first value is greater than 20.

As an embodiment, the first value relates to a parameter of a maintaining base station of the first serving cell.

As an embodiment, the second value comprises a maximum value of the first counter.

As an embodiment, the second value is configurable.

As an embodiment, the second value is preconfigured.

As an embodiment, the second value is of fixed size.

As an embodiment, the second value is a non-negative integer.

As an embodiment, the second value comprises the N311.

As an embodiment, the second value is equal to 20.

As an embodiment, the second value is greater than 20.

As an embodiment, the second value is related to a parameter of a maintaining base station of the first serving cell.

As one embodiment, the sentence wherein the first counter reaching a first value is used to determine to start the first timer comprises: when the first counter reaches a maximum value, it is determined to start the first timer.

As one embodiment, the sentence the second counter reaching a second value is used to determine to stop the first timer comprises: when the second counter reaches a maximum value, it is determined to stop the first timer.

Example 11

Embodiment 11 illustrates a schematic diagram in which a first indicator is used to determine whether a second timer is active, according to one embodiment of the application, as shown in fig. 11.

In embodiment 11, the first node receives the second signaling; the second signaling is used to indicate a first set of parameters for the second timer; the first set of parameters includes a first indicator that is used to determine whether the second timer is valid.

As one embodiment, the phrase that the first set of parameters includes a first indicator includes: the first indicator is a field in the first set of parameters.

As one embodiment, the phrase that the first set of parameters includes a first indicator includes: the first indicator is one parameter of the first set of parameters.

As one embodiment, the phrase that the first set of parameters includes a first indicator includes: the first indicator is part of the first set of parameters.

As an embodiment, the first indicator is used to explicitly indicate that the second timer is active.

As an embodiment, the first indicator is used to explicitly indicate that the second timer is invalid.

As an embodiment, the first indicator is used to implicitly indicate that the second timer is active.

As an embodiment, the first indicator is used to implicitly indicate that the second timer is invalid.

As an embodiment, the first indicator is valid only for NTN.

As an embodiment, the first indicator comprises setupelease.

As an embodiment, the first indicator comprises MCG-only.

As an embodiment, the first indicator comprises NTN-only.

As an embodiment, the first indicator is used to determine that the second timer is conditional.

As an embodiment, the first indicator comprises setup.

As an embodiment, the first indicator comprises release.

As one embodiment, the first indicator comprises wire.

As an embodiment, the first indicator comprises false.

Example 12

Embodiment 12 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. 12. In fig. 12, the processing means 1200 in the first node comprises a first receiver 1201 and a first transmitter 1202.

The first receiver 1201 determines that a physical layer problem occurs in the first serving cell; starting a first timer as a response to the phrase determining that the physical layer problem occurs in the first serving cell;

a first transmitter 1202 that transmits a first signal;

The first receiver 1201 starts a second timer in response to the first signal being triggered; during operation of the second timer, a second signal is monitored, when the first timer expires, a wireless connection is maintained and the second timer continues to count.

In embodiment 12, the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

As an embodiment, the first receiver 1201 resets the first counter and the second counter in response to the first signal being triggered; wherein the first counter reaching a first value is used to determine to start the first timer; the second counter reaching a second value is used to determine to stop the first timer; the first value and the second value are non-negative integers.

As an embodiment, the first receiver 1201 determines that a radio connection failure occurs after the first event occurs and when the second timer expires; the first transmitter 1202, as a response to the action determining that the radio connection failure occurs, sends a first signaling; wherein the first signaling is used to request an update of a wireless connection, the first event includes the second timer being running and the first timer expiring.

As an embodiment, the first receiver 1201 receives the second signaling; wherein the second signaling is used to indicate a first set of parameters for the second timer; the first set of parameters includes a first expiration value and a first offset, a sum of the first expiration value and the first offset being used to determine an expiration time of the second timer.

As an embodiment, the first set of parameters includes a first indicator that is used to determine whether the second timer is valid.

As an embodiment, the first receiver 1201 receives the second signal; in response to receiving the second signal, the second timer is stopped.

As an embodiment, the first signal is transmitted during operation of the first timer.

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

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

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

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

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

Example 13

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

A second receiver 1302 that receives the first signal;

a second transmitter 1301 for transmitting a second signal in response to the first signal being received;

in embodiment 13, a first timer is started in response to determining that the first serving cell has a physical layer problem; in response to the first signal being triggered, a second timer is started; during operation of the second timer, the second signal is monitored, when the first timer expires, a wireless connection is maintained and the second timer continues to count; the first signal is used to trigger the second signal; the second timer is related to a parameter of a maintaining base station of the first serving cell.

As an embodiment, the first counter and the second counter are reset in response to the first signal being triggered; wherein the first counter reaching a first value is used to determine to start the first timer; the second counter reaching a second value is used to determine to stop the first timer; the first value and the second value are non-negative integers.

As an embodiment, the second receiver 1302 receives the first signaling in response to determining that the radio connection failure has occurred; wherein the radio connection failure is determined to occur after the occurrence of the first event and when the second timer expires; the first signaling is used to request an update of a wireless connection, the first event includes the second timer being running and the first timer expiring.

As an embodiment, the second transmitter 1301 sends a second signaling; wherein the second signaling is used to indicate a first set of parameters for the second timer; the first set of parameters includes a first expiration value and a first offset, a sum of the first expiration value and the first offset being used to determine an expiration time of the second timer.

As an embodiment, the first set of parameters includes a first indicator that is used to determine whether the second timer is valid.

In one embodiment, the second timer is stopped in response to receiving the second signal.

As an embodiment, the first signal is transmitted during operation of the first timer.

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

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

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

As an example, the second receiver 1302 includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As an example, the second receiver 1302 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 1302 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, transmitting/receiving node), and other wireless communication devices.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any 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 (10)

1. A first node for wireless communication, comprising:

a first receiver for determining that a physical layer problem occurs in a first serving cell; starting a first timer as a response to the phrase determining that the physical layer problem occurs in the first serving cell;

a first transmitter that transmits a first signal;

the first receiver, in response to the first signal being transmitted, starting a second timer; monitoring a second signal during operation of the second timer, maintaining a wireless connection and the second timer continuing to count when the first timer expires;

wherein the first signal is used to trigger the second signal.

2. The first node of claim 1, comprising:

the first receiver resetting a first counter and a second counter in response to starting the second timer;

wherein the first counter reaching a first value is used to determine to start the first timer; the second counter reaching a second value is used to determine to stop the first timer; the first value and the second value are non-negative integers.

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

the first receiver determining that a radio connection failure occurred after the occurrence of the first event and when the second timer expires;

the first transmitter sends a first signaling as a response of the behavior determining that the wireless connection failure occurs;

wherein the first signaling is used to request an update of a wireless connection, the first event includes the second timer being running and the first timer expiring.

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

the first receiver receives a second signaling;

wherein the second signaling is used to indicate a first set of parameters for the second timer; the first set of parameters includes a first expiration value and a first offset, a sum of the first expiration value and the first offset being used to determine an expiration time of the second timer.

5. The first node of claim 4, wherein the first set of parameters includes a first indicator that is used to determine whether the second timer is valid.

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

the first receiver receives the second signal; in response to receiving the second signal, the second timer is stopped.

7. The first node according to any of claims 1 to 6, wherein the first signal is transmitted during operation of the first timer.

8. A second node for wireless communication, comprising:

a second receiver that receives the first signal;

a second transmitter that transmits a second signal in response to the first signal being received;

wherein the first timer is started in response to determining that the first serving cell has a physical layer problem; a second timer is started in response to the first signal being sent; during operation of the second timer, the second signal is monitored, when the first timer expires, a wireless connection is maintained and the second timer continues to count; the first signal is used to trigger the second signal.

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

Determining that a physical layer problem occurs in the first serving cell; starting a first timer as a response to the phrase determining that the physical layer problem occurs in the first serving cell;

transmitting a first signal;

the first receiver, in response to the first signal being transmitted, starting a second timer; monitoring a second signal during operation of the second timer, maintaining a wireless connection and the second timer continuing to count when the first timer expires;

wherein the first signal is used to trigger the second signal.

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

receiving a first signal;

transmitting a second signal in response to the first signal being received;

wherein the first timer is started in response to determining that the first serving cell has a physical layer problem; a second timer is started in response to the first signal being sent; during operation of the second timer, the second signal is monitored, when the first timer expires, a wireless connection is maintained and the second timer continues to count.