CN112543463B

CN112543463B - Method and apparatus in a node used for wireless communication

Info

Publication number: CN112543463B
Application number: CN201910900382.6A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2022-07-01
Anticipated expiration: 2039-09-23
Also published as: CN115022898A; WO2021057598A1; CN112543463A

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A first node first receives first information, which is used to determine a first time value; secondly receiving a first signal, said first signal being used to determine a first channel quality; then the first node determines that a first timer is overtime and executes RRC operation; the first channel quality is used to determine a first offset, the first time value and the first offset are collectively used to determine T1, the T1 is a positive integer, and an expiration time of the first timer is equal to T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 represents the first timer timing out. The method and the device determine the T1 by adopting the first channel quality, and further optimize the timer configuration of the first node so as to adapt to different application scenarios in wireless communication.

Description

Method and device used in node of wireless communication

Technical Field

The present invention relates to a transmission method and apparatus in a wireless communication system, and in particular, to a transmission method and apparatus in a Non-Terrestrial network (NTN) in wireless communication.

Background

In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of multiple application scenarios, a New air interface technology (NR, New Radio) (or 5G) is determined to be studied on #72 bunions of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network), and standardization Work on NR is started after a Work Item of the New air interface technology (NR, New Radio) passes through a WI (Work Item) of the New air interface technology (NR, New Radio) on #75 bunions of 3GPP RAN.

In order to be able to adapt to various application scenarios and meet different requirements, the 3GPP RAN #75 time congress also passed a Non-Terrestrial Networks (NTN) research project under NR, which started in version R15. The decision to start the study of solutions in NTN networks was made on 3GPP RAN #79 full meeting, and then WI was initiated to standardize the related art in R16 or R17 release.

Disclosure of Invention

In the NTN network, User Equipment (UE) and a satellite or an aircraft communicate through a 5G network, and a distance from the satellite or the aircraft to the User Equipment is far greater than a distance from a ground base station to the User Equipment, so that a long transmission Delay (Propagation Delay) exists when the satellite or the aircraft and the User Equipment perform communication transmission. In addition, when a satellite is used as a relay device for a ground station, the delay of a Feeder Link (Feeder Link) between the satellite and the ground station may further increase the transmission delay between the user equipment and the base station. On the other hand, since the coverage of satellites and aircraft is much larger than that of Terrestrial Networks (Terrestrial Networks), and since the inclination angles of Terrestrial devices to satellites or aircraft are different, under the same satellite service in the NTN, different terminals are located at the center and edge of the satellite coverage, resulting in a large difference in TA (Timing Advance). In an existing LTE (Long Term Evolution) or 5G NR system, a terminal may maintain a plurality of timers to be applied to the determination of steps or operations such as RRC (Radio Resource Control) reestablishment (Re-establishment), Cell reselection (Cell-reselection), and entering into an RRC _ IDLE state, and then the configuration of the starting value of the timer is usually based on the characteristics of a ground network, and the consideration of characteristics such as large transmission delay and processing delay in an NTN network is relatively small.

The application provides a solution to the problem of large delay in large delay networks, especially in NTN communication scenarios. It should be noted that, in the above description of the problem, the NTN scenario is only an example of an application scenario of the solution provided in the present application; the method and the device are also applicable to the scenes such as the ground network, and achieve the technical effect similar to the NTN scene. Similarly, the present application is also applicable to scenarios where there is a network of UAVs (Unmanned Aerial vehicles), or internet of things devices, for example, to achieve technical effects in NTN-like scenarios. Furthermore, employing a unified solution for different scenarios (including but not limited to NTN scenarios and ground network scenarios) also helps to reduce hardware complexity and cost.

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

The application discloses a method in a first node used for wireless communication, characterized by comprising:

receiving first information, the first information being used to determine a first time value;

receiving a first signal, the first signal being used to determine a first channel quality;

determining that a first timer expires and performing RRC operation;

wherein the first channel quality is used to determine a first offset, the first time value and the first offset are used together to determine T1, the T1 is a positive integer, and an expiration time of the first timer is equal to T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the countdown of the first timer to 0 indicates that the first timer has expired.

As an example, one benefit of the above approach is that: and the first node estimates the transmission delay and the processing delay between the first node and the sender of the first information through the first channel quality, and adds the first offset on the basis of the configured first time value, thereby optimizing the design of the timer according to the delay actually sensed by the first node.

As an example, another benefit of the above method is: the first offset is indicated without additional signaling, so that the signaling overhead is reduced, and the spectrum efficiency is improved.

As an example, a further benefit of the above method is that: the method only needs the first node to determine the first offset through the first channel quality, and does not need to know other information such as the altitude of the sender of the first information, the satellite type and the like, so that the method is a scheme with wider application range and stronger adaptability.

As an example, the essence of the above method is: the first node deduces the delay from the sender of the first information to the second node through the first channel quality, and then adjusts the starting value of the timer in the RRC operation of the first node to tolerate higher delay, avoid frequent switching among multiple RRC states or operations, and improve system efficiency.

According to an aspect of the application, the above method is characterized in that the first channel quality is used for determining a path loss of a sender of the first signal to the first node.

As an example, the above method has the benefits of: the path loss can indirectly reflect the transmission delay, and therefore the first node can be helped to accurately adjust the first offset.

According to an aspect of the application, the above method is characterized in that the first channel quality is used for determining a second time value between the sender of the first signal and the first node.

As an example, the above method has the benefits of: when the first channel quality is directly used for representing the transmission delay, the second time value can be directly used for adjusting the initial value of the timer, and therefore the design of the timer is optimized.

According to one aspect of the application, the method described above is characterized by comprising:

receiving a second signaling;

transmitting a second signal;

wherein the second signaling is used to trigger sending of the second signal, a time interval between a starting time of a time domain resource occupied by the second signaling and a starting time of a time domain resource occupied by the second signal is equal to a first time interval, and the first time interval is associated with the first offset; the unit of the first time interval is milliseconds.

As an example, the above method has the benefits of: and establishing a relation between the first time interval and the first offset to further optimize various scheduling delays, wherein when the indication of the scheduling delays is indicated by dynamic signaling, the method avoids introducing excessive dynamic signaling bits, and introduces additional offset on the first node side only by the first offset so as to adapt to different transmission delay scenes to cope with the conditions that the second node is located at different heights and the first node is located at different positions in the application.

According to an aspect of the application, the above method is characterized in that the first channel quality is used for determining the type of service supported by the sender of the first signal.

As an example, the above method has the benefits of: changing the type of service that the first node can be provided with according to the different transmission delays perceived by the first node; that is, when the delay is large, the service with high requirement on the delay will not be provided, and the performance of the whole network is optimized.

According to an aspect of the application, the method as described above is characterized in that the first timer is used for initiating an RRC connection reestablishment operation in handover, the first timer expires, and the performing the RRC operation includes initiating an RRC connection reestablishment.

According to one aspect of the present application, the method as described above is characterized in that the first timer is used to determine whether the first node is out of synchronization, the first timer expires, and the performing the RRC operation includes initiating a connection re-establishment.

receiving a third signal;

wherein the third signal is used to indicate third information, which is used to determine the first set of time values, to which the first time value belongs.

As an example, the above method has the benefits of: establishing a relation between third information and the height of a sender of the first information, and then determining the value range of the first time value by the first node through the third information, so that the value precision of the first time value is improved, and the problem of overlarge system signaling cost caused by the fact that the first information occupies too many bits is avoided.

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

transmitting first information, the first information being used to determine a first time value;

transmitting a first signal, the first signal being used to determine a first channel quality;

wherein the first channel quality is used to determine a first offset, the first time value and the first offset are used together to determine T1, the T1 is a positive integer, the recipient of the first information comprises a first node comprising a first timer, an expiration time of the first timer equals T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired; when the first timer expires, the first node performs an RRC operation.

According to an aspect of the application, the above method is characterized in that the first channel quality is used for determining the path loss of the second node to the first node.

According to an aspect of the application, the above method is characterized in that the first channel quality is used for determining a second time value between the second node and the first node.

sending a second signaling;

receiving a second signal;

According to an aspect of the application, the above method is characterized in that the first channel quality is used for determining the type of traffic supported by the second node.

transmitting a third signal;

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

a first receiver to receive first information, the first information being used to determine a first time value;

a second receiver receiving a first signal, the first signal being used to determine a first channel quality;

a first transceiver for determining expiration of a first timer and performing an RRC operation;

wherein the first channel quality is used to determine a first offset, the first time value and the first offset are used together to determine T1, the T1 is a positive integer, and an expiration time of the first timer is equal to T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired.

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

a first transmitter to transmit first information, the first information being used to determine a first time value;

a second transmitter to transmit a first signal, the first signal being used to determine a first channel quality;

wherein the first channel quality is used to determine a first offset, the first time value and the first offset are used together to determine T1, the T1 is a positive integer, the recipient of the first information comprises a first node comprising a first timer, an expiration time of the first timer equals T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the countdown of the first timer to 0 indicates expiration of the first timer; when the first timer expires, the first node performs an RRC operation.

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

the first node deduces the delay from the sender of the first message to the second node through the first channel quality, and then adjusts the starting value of the timer in the RRC operation of the first node to tolerate a higher delay, avoid frequent switching between multiple RRC states or operations, and improve system efficiency;

the first offset is added on the basis of the configured first time value, and then the design of the timer is optimized according to the actual perceived delay of the first node under the condition that the configuration flexibility is ensured through the first time value; the first offset is indicated without additional signaling, so that the signaling overhead is reduced, and the spectrum efficiency is improved;

establishing a relationship between the first time interval and the first offset to optimize various scheduling delays, and when the indication of the scheduling delays is indicated by dynamic signaling, in this way, too many dynamic signaling bits are prevented from being introduced, and only the first offset is used to introduce extra offset to the first node side, so as to adapt to different scenarios of transmission delay, so as to cope with different scenarios of the second node in different heights and different scenarios of the first node in the present application.

Drawings

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

FIG. 1 illustrates a process flow diagram of a first node according to one embodiment of the present application;

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

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

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

FIG. 5 shows a flow diagram of first information according to an embodiment of the present application;

FIG. 6 shows a flow diagram of a second signal according to an embodiment of the present application;

FIG. 7 illustrates a flow diagram for determining whether a first timer has expired according to one embodiment of the present application;

FIG. 8 shows a diagram of a first channel quality according to an embodiment of the present application;

FIG. 9 shows a diagram of a first channel quality and a first offset according to an embodiment of the application;

figure 10 shows a schematic diagram of second signaling and a second signal according to an embodiment of the present application;

FIG. 11 shows a schematic diagram of traffic types according to an embodiment of the present application;

figure 12 shows a schematic diagram of an application scenario for RRC operation according to the present application;

figure 13 shows a schematic diagram of another application scenario for RRC operation according to the present application;

FIG. 14 shows a schematic of a first class of time value sets according to the present application;

FIG. 15 shows a block diagram of a structure used in a first node according to an embodiment of the present application;

fig. 16 shows a block diagram of a structure used in a second node according to an embodiment of the present application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives first information in step 101, the first information being used to determine a first time value; receiving a first signal at step 102, the first signal being used to determine a first channel quality; it is determined in step 103 that the first timer has expired and an RRC operation is performed.

In embodiment 1, the first channel quality is used to determine a first offset, the first time value and the first offset are used together to determine T1, the T1 is a positive integer, and the expiration time of the first timer is equal to T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired.

As one embodiment, the unit of the first time value is milliseconds.

As an embodiment, the unit of the first offset is milliseconds.

For one embodiment, the first time value is equal to T2 milliseconds, the first offset is equal to T3 millimeters, and T1 is equal to the sum of T2 and T3.

As one embodiment, the first time value is equal to T2 milliseconds, the first offset is equal to T3 millimeters, and the T1 is equal to the difference between the T2 and the T3.

As a sub-embodiment of the above two embodiments, the T2 and the T3 are both positive integers.

As a sub-embodiment of the two above embodiments, the T2 is greater than the T3.

As an embodiment, the first information is cell-common.

As one embodiment, the first information is specific to a user equipment.

As an embodiment, the signaling carrying the first information is RRC signaling.

As an embodiment, the signaling carrying the first information is broadcast signaling.

As an embodiment, the signaling carrying the first Information is SIB (System Information Block).

As an embodiment, RLF-timersandstandards IE (Information Elements) in TS (Technical Specification) 38.331 includes the first Information.

As an embodiment, the UE-timersanddates IE in TS 38.331 includes the first information.

As one embodiment, the first signal is a wireless signal.

As one embodiment, the first signal is a baseband signal.

For one embodiment, the phrase that the first timer expires means to include that the first timer expires (Expire).

As an example, the phrase above that the first timer expires means that the first timer is equal to 0.

As an embodiment, the first timer is T300 in TS 38.331, and the first node sets the value of the first timer to the T1 milliseconds according to the transmission of the RRCSetupRequest and starts counting down.

As an embodiment, the first timer is T300 in TS 38.331, and the first node stops counting down of the first timer according to reception of RRCSetup or reception of RRCReject.

As one embodiment, the first timer is used to determine whether the first node RRC Setup was successful within the T1 milliseconds.

As an embodiment, the RRC operation includes resetting (Reset) MAC (Medium Access Control).

For one embodiment, the RRC operation includes releasing (Release) MAC configuration.

As an embodiment, the RRC operation includes re-establishing RLC for all radio bearers.

For one embodiment, the RRC operation includes notifying a higher layer of an RRC connection setup failure.

As an example, the first timer is T301 in TS 38.331.

As an embodiment, the first node sets the value of the first timer to T1 ms according to the transmission of rrcreestablemarginequest, and starts a countdown.

As an embodiment, the first node stops the countdown of the first timer according to the reception of rrcelestablishment or the reception of RRCSetup Message (Message).

As an embodiment, the first timer is used to determine whether the first node needs to enter an RRC IDLE state.

For one embodiment, the RRC operation includes entering an RRC IDLE state.

As an example, the first timer is T302 in TS 38.331.

As an embodiment, the first node sets the value of the first timer to the T1 milliseconds and starts a countdown according to the reception of RRCReject when operating RRC connection establishment or recovery.

As an embodiment, the first node stops the countdown of the first timer according to entering the RRC _ CONNECTED state and according to the cell reselection.

As an embodiment, the first timer is used to determine whether the first node needs to enter RRC reestablishment.

As one embodiment, the RRC operation includes notifying a higher layer Barring mitigation (Barring mitigation).

For one embodiment, the first timer is T304 in TS 38.331.

As an embodiment, the first node sets the value of the first timer to the T1 msec and starts a countdown according to reception of the RRCReconfiguration message included in the reconfigurationWithSync.

As an embodiment, the first node stops the countdown of the first timer according to successful completion of the random access of the relevant serving cell.

As an embodiment, the first timer is used in a cell handover of the first node.

As an embodiment, before the first timer counts down to "0", the first node does not complete the cell handover, and the first node enters an RRC Reestablishment (Procedure) Procedure.

For one embodiment, the RRC operation includes initiating an RRC reestablishment procedure.

As an example, the first timer is T310 in TS 38.331.

As an embodiment, the first node sets the value of the first timer to the T1 ms according to a detected (Detecting) serving cell physical layer channel problem, and starts to count down.

For one embodiment, the first node sets the value of the first timer to the T1 milliseconds and starts a countdown according to the received N310 out-of-sync (out-of-sync) indication.

As an embodiment, the first node stops the countdown of the first timer according to the received N311 synchronization (in-sync) indication.

As an embodiment, the first node stops the countdown of the first timer according to the received rrcreconfigurable withsync.

As an embodiment, the first node stops the countdown of the first timer according to initiating a connection reestablishment procedure.

As an embodiment, the first timer is used to determine whether an RRC connection reestablishment procedure needs to be entered.

As an embodiment, the first node enters an RRC connection reestablishment procedure when the first timer counts down to "0".

As an embodiment, the first timer is used to determine whether a cell reselection procedure needs to be entered.

As an embodiment, the first node enters a cell reselection procedure when the first timer counts down to "0".

As an example, the first timer is T311 in TS 38.331.

As an embodiment, the first node sets the value of the first timer to T1 ms and starts a countdown according to initiating an RRC reestablishment procedure.

As an embodiment, the first node stops the countdown of the first timer according to selection of a suitable NR cell or selection of a suitable other RAT (Radio Access Technology ) cell.

As an embodiment, the first timer is used to determine the time from the start of RRC reestablishment to the entry into RRC IDLE.

As an embodiment, the first node enters an RRC IDLE state when the first timer counts down to "0".

As an embodiment, the RRC operation includes entering RRC IDLE.

As an example, the first timer is T319 in TS 38.331.

For one embodiment, the first node sets the value of the first timer to T1 ms according to the transmission of RRCResumeRequest, and starts a countdown.

As an embodiment, the first node stops the countdown of the first timer according to reception of rrcresum, reception of RRCSetup, reception of RRCRelease including suspendConfig, or reception of RRCReject message, or cell reselection, or connection re-establishment cancellation.

As one embodiment, the first timer is used to determine the time for RRC recovery (Resume).

For one embodiment, the first node determines that RRC recovery failed when the first timer counts down to "0".

As an embodiment, the RRC operation includes entering into performing related operations entering RRC IDLE and releasing cause (cause) "RRC recovery failure".

For one embodiment, the first signal includes a reference signal.

As one embodiment, the first Signal includes a CSI-RS (Channel State Information Reference Signal).

For one embodiment, the first Signal includes a PTRS (Phase Tracking Reference Signal).

As one embodiment, the first Signal includes PRS (Positioning Reference Signal).

As one embodiment, the first Signal includes a DMRS (Demodulation Reference Signal).

As an example, the above phrase that the expiration time of the first timer equals T1 ms means that: the time from the beginning of the first timer to the expiration is equal to T1 milliseconds.

As an example, the above phrase that the expiration time of the first timer equals T1 ms means that: the starting time when the first timer starts is T1 ms, and the first timer is considered to expire when counted down to 0.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Fig. 2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, EPCs (Evolved Packet cores)/5G-CNs (5G-Core networks) 210, HSS (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 connects to the EPC/5G-CN 210 through the S1/NG interface. The EPC/5G-CN 210 includes MME (Mobility Management Entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 211, other MMEs/AMF/UPF 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through the S-GW212, and the S-GW212 itself is connected to the P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

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

As an embodiment, the air interface between the UE201 and the gNB203 is a Uu interface.

As an embodiment, the radio link between the UE201 and the gNB203 is a cellular link.

As an embodiment, the first node in this application is a terminal within the coverage of the gNB 203.

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

As an embodiment, the UE201 supports transmission in a large delay network.

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

As an embodiment, the gNB203 supports transmission in a large delay network.

As an embodiment, the first node has GPS (Global Positioning System) capability.

As an example, the first node has GNSS (Global Navigation Satellite System) capability.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the first communication node device (UE, RSU in gbb or V2X) and the second communication node device (gbb, RSU in UE or V2X), or the control plane 300 between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the first and second communication node devices and the two UEs through PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets and provides handoff support between second communication node devices to the first communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e. Radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

The radio protocol architecture of fig. 3 applies to the first node in this application as an example.

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

For one embodiment, the first information is generated in the MAC352 or the MAC 302.

As an embodiment, the first information is generated at the RRC 306.

For one embodiment, the first signal is generated from the PHY301 or the PHY 351.

For one embodiment, the first signal is generated at the MAC352 or the MAC 302.

For one embodiment, the first timer is located in the PHY301 or the PHY 351.

For one embodiment, the first timer is located at the MAC352 or the MAC 302.

As an embodiment, the first timer is located in the RLC303 or the RLC 353.

For one embodiment, the first timer is located in the PDCP304, or the PDCP 354.

As an embodiment, the first timer is located at RRC 306.

As an embodiment, the RRC operation is completed at the RRC 306.

For one embodiment, the second signaling is generated from the PHY301 or the PHY 351.

For one embodiment, the second signaling is generated in the MAC352 or the MAC 302.

For one embodiment, the second signal is generated from the PHY301 or the PHY 351.

For one embodiment, the second signal is generated at the MAC352 or the MAC 302.

As an embodiment, the second signal is generated at the RRC 306.

For one embodiment, the third signal is generated at the MAC352 or the MAC 302.

As an embodiment, the third signal is generated at the RRC 306.

Example 4

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first communication device 450 apparatus at least: first receiving first information, the first information being used to determine a first time value; secondly receiving a first signal, said first signal being used to determine a first channel quality; then determining that the first timer expires, and performing RRC operation; the first channel quality is used to determine a first offset, the first time value and the first offset are collectively used to determine T1, the T1 is a positive integer, and an expiration time of the first timer is equal to T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: first receiving first information, the first information being used to determine a first time value; secondly receiving a first signal, said first signal being used to determine a first channel quality; then determining that the first timer expires, and performing RRC operation; the first channel quality is used to determine a first offset, the first time value and the first offset are collectively used to determine T1, the T1 is a positive integer, and an expiration time of the first timer is equal to T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired.

As an embodiment, the second communication device 410 apparatus 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 means at least: first sending first information, the first information being used to determine a first time value; secondly transmitting a first signal, said first signal being used to determine a first channel quality; the first channel quality is used to determine a first offset, the first time value and the first offset are used together to determine a T1, the T1 is a positive integer, the recipient of the first information includes a first node, the first node includes a first timer, an expiration time of the first timer equals T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired; when the first timer expires, the first node performs an RRC operation.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: first sending first information, the first information being used to determine a first time value; secondly transmitting a first signal, said first signal being used to determine a first channel quality; the first channel quality is used to determine a first offset, the first time value and the first offset are collectively used to determine T1, the T1 is a positive integer, the recipient of the first information comprises a first node, the first node comprises a first timer, an expiration time of the first timer equals T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired; when the first timer expires, the first node performs an RRC operation.

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.

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

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

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

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

For one embodiment, the first communication device 450 is a near-earth terminal.

For one embodiment, the first communication device 450 is an aircraft.

As an example, the first communication device 450 is a water surface vehicle.

For one embodiment, the second communication device 410 is a non-terrestrial base station.

As an example, the second communication device 410 is a GEO (Geostationary Earth orbit) satellite.

As an example, the second communication device 410 is a MEO (Medium Earth orbit) satellite.

As an example, the second communication device 410 is a LEO (Low Earth Orbit) satellite.

As an example, the second communication device 410 is a HEO (high elliptic orbit) satellite.

As an example, the second communication device 410 is an Airborne Platform.

For one embodiment, at least one of the antenna 452, the receiver 454, the multiple antenna receive processor 458, the receive processor 456, the controller/processor 459 is configured to receive first information; at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 is configured to transmit the first information.

For one embodiment, at least one of the antenna 452, the receiver 454, the multiple antenna receive processor 458, the receive processor 456, the controller/processor 459 is configured to receive a first signal; at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 is configured to transmit a first signal.

For one embodiment, at least one of the transmit processor 468, the receive processor 456, the controller/processor 459 is configured to determine that a first timer has expired.

For one embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 is configured to perform RRC operations.

As one implementation, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 is configured to perform RRC operations.

For one embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 is configured to receive second signaling; at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 is configured to send second signaling.

As one implementation, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 is configured to transmit a second signal; at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 is configured to receive a second signal.

For one embodiment, at least one of the antenna 452, the receiver 454, the multiple antenna receive processor 458, the receive processor 456, the controller/processor 459 is configured to receive a third signal; at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 is configured to transmit a third signal.

Example 5

Embodiment 5 illustrates a flow chart of the first signaling, as shown in fig. 5. In FIG. 5, the first node U1 communicates with the second node N2 via a wireless link, wherein the step identified at block F0 is optional.

For theFirst node U1Receiving a third signal in step S10; receiving the first information in step S11; receiving a first signal in step S12; it is determined that the first timer expires in step S13, and an RRC operation is performed.

For theSecond node N2A third signal is transmitted in step S20; transmitting the first information in step S21; the first signal is transmitted in step S22.

In embodiment 5, the first information is used to determine a first time value, and the first signal is used to determine a first channel quality; the first channel quality is used to determine a first offset, the first time value and the first offset are collectively used to determine T1, the T1 is a positive integer, and an expiration time of the first timer is equal to T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired; the third signal is used to indicate third information, which is used to determine the first set of time values, to which the first time value belongs.

For one embodiment, the first channel quality is used to determine a path loss of the second node N2 to the first node U1.

As a sub-embodiment of this embodiment, the first signal comprises a reference signal.

As a sub-embodiment of this embodiment, the first Signal comprises SSB (Synchronization Signal Block).

As a sub-embodiment of this embodiment, the first signal comprises CSI-RS.

As a sub-embodiment of this embodiment, the Physical layer Channel carrying the first signal includes a PDCCH (Physical Downlink Control Channel).

As a sub-embodiment of this embodiment, the unit of the first channel quality is dBm (millidecibels).

As a sub-embodiment of this embodiment, the first channel quality is RSRP (Reference Signal Received Power).

As a sub-embodiment of this embodiment, the first node U1 knows a transmit power value of the first signal, the first channel quality is a receive power value of the first signal, and the transmit power value and the receive power value are used to determine the path loss from the second node N2 to the first node U1.

As a sub-embodiment of this embodiment, the unit of the path loss is dB.

As a sub-embodiment of this embodiment, the first time value is independent of the first channel quality.

As a sub-embodiment of this embodiment, the first offset increases with an increase in the path loss.

As a sub-embodiment of this embodiment, the first offset amount decreases as the path loss decreases.

As a sub-embodiment of this embodiment, the value of T1 increases as the path loss increases.

As a sub-embodiment of this embodiment, the value of T1 decreases as the path loss decreases.

As a sub-embodiment of this embodiment, the first offset is equal to one of K1 candidate values, the K1 candidate values respectively correspond to K1 value ranges of the path loss in a one-to-one manner, and K1 is a positive integer greater than 1.

As a sub-embodiment of this sub-embodiment, the path loss is equal to a given value range of the K1 value ranges, the given value range corresponds to a given candidate value among the K1 candidate values, and the first offset is equal to the given candidate value.

For one embodiment, the first channel quality is used to determine a second time value between the second node N2 and the first node U1.

As an additional embodiment of this sub-embodiment, said first signal comprises Msg-3 in a random access procedure.

As an additional embodiment of this sub-embodiment, the unit of the second time value is milliseconds.

As an additional embodiment of this sub-embodiment, the second time value is a transmission delay of the second node N2 to the first node U1.

As a subsidiary embodiment of this sub-embodiment, said second time value is the Timing Advance (Timing Advance) of said first node U1 to said second node N2.

As an additional embodiment of this sub-embodiment, the first channel quality comprises the second time value.

As a subsidiary embodiment of this sub-embodiment, said first offset increases with increasing said second time value.

As a subsidiary embodiment of this sub-embodiment, said first offset decreases with decreasing said second time value.

As a sub-embodiment of this sub-embodiment, the value of T1 increases with increasing second time value.

As a sub-embodiment of this sub-embodiment, the value of T1 decreases as the value of the second time decreases.

As an auxiliary embodiment of this sub-embodiment, the first offset is equal to one of K2 candidate values, the K2 candidate values respectively correspond to K2 value ranges of the second time value one by one, and K2 is a positive integer greater than 1.

As an additional embodiment of this sub-embodiment, the second time value is equal to a given value range of the K2 value ranges, the given value range corresponds to a given candidate value among the K2 candidate values, and the first offset is equal to the given candidate value.

As an embodiment, the unit of the first time value is milliseconds.

For one embodiment, the first time value is a transmission delay of the second node N2 to the first node U1.

As one embodiment, the first time value is a reference Timing Advance (Timing Advance) of the first node U1 to the second node N2.

As a sub-embodiment of this embodiment, the reference timing advance refers to a TA calculated by the second node N2 according to the distance to the close-by terminal.

For one embodiment, the first channel quality includes the first time value.

As one example, the value of T1 increases as the first time value increases.

As one example, the value of T1 decreases as the first time value decreases.

As an embodiment, the T1 is equal to one of K2 candidate values, the K2 candidate values respectively correspond to K2 value ranges of the first time value in a one-to-one manner, and the K2 is a positive integer greater than 1.

For one embodiment, the first channel quality is used to determine the type of traffic supported by the second node N2.

As a sub-embodiment of this embodiment, the service type supported by the second node N2 is one candidate service type of K3 candidate service types, the first channel quality belongs to one of K3 value ranges, and the K3 value ranges are respectively in one-to-one correspondence with the K3 candidate service types.

As a sub-embodiment of this embodiment, the second node N2 supports only one traffic type for the first node U1.

In one embodiment, the first timer is used for initiating RRC connection reestablishment in handover, the first timer expires, and the performing RRC operation includes initiating RRC connection reestablishment.

As a sub-embodiment of this embodiment, the first timer is T304 in TS 38.331.

As a sub-embodiment of this embodiment, the first node U1 initiates a handover before starting the first timer.

As a sub-embodiment of this embodiment, the first node U1 sends a Measurement Report (Measurement Report) to the second node N2 before starting the first timer.

As a sub-embodiment of this embodiment, the first node U1 completes synchronization and random access with the target cell in handover with the first node U1 before starting the first timer.

For one embodiment, the first timer is used to determine whether the first node U1 is out of synchronization, the first timer expires, and the performing the RRC operation includes initiating a connection re-establishment.

As a sub-embodiment of this embodiment, the first timer is T310 in TS 38.331.

As a sub-embodiment of this embodiment, the first node U1 finds the occurrence of out-of-sync before starting the first timer.

As a sub-embodiment of this embodiment, the first node U1 finds that the reception performance of the PDCCH is below a first threshold before starting the first timer.

As an additional embodiment of this sub-embodiment, the first threshold is BLER (Block Error Rate).

As a sub-embodiment of this embodiment, the first node U1 finds that the RSRP of the received first signal is less than a second threshold before starting the first timer.

As a sub-embodiment of this embodiment, the connection re-establishment comprises an RRC connection re-establishment.

As one embodiment, the first information is used to indicate the first time value from the first class of time value sets.

As an embodiment, the first class time value set includes Q1 first class time values, the Q1 is a positive integer greater than 1, and the first time value is one of the Q1 first class time values.

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

As an embodiment, the third signal is a baseband signal.

As an embodiment, the third information is used to determine the altitude of the second node N2.

For one embodiment, the third information is used to determine a downtilt angle of the second node N2 to the first node U1.

As an embodiment, the third information is used to indicate that the second node N2 is a GEO (Geostationary Earth orbit) satellite.

As an embodiment, the third information is used to indicate that the second node N2 is a MEO (Medium Earth orbit) satellite.

As an embodiment, the third information is used to indicate that the second node N2 is a LEO (Low Earth Orbit) satellite.

As an embodiment, the third information is used to indicate that the second node N2 is a HEO (high elliptic orbit) satellite.

As an embodiment, the third information is used to indicate that the second node N2 is an airbone Platform.

For one embodiment, the second node N2 provides coverage of M1 Beam regions (Beam spots), the first node U1 is located in one of the M1 Beam regions, and the third information is used to indicate the Beam region of the M1 Beam regions in which the first node U1 is located; the M1 is a positive integer greater than 1.

For one embodiment, the third information is used to indicate a down tilt of the second node N2 to the first node U1.

For one embodiment, the second node N2 is an attached base station of a cell serving the first node U1, and the third information is used to indicate that the first node U1 is located at an edge of the cell.

For one embodiment, the second node N2 is an attached base station of a cell serving the first node U1, and the third information is used to indicate that the first node U1 is located at the center of the cell.

As an embodiment, the third information is used to indicate that the second node N2 is a terrestrial base station.

Example 6

Example 6 illustrates a flow chart of a second signal, as shown in fig. 6. In FIG. 6, a first node U3 communicates with a second node N4 via a wireless link.

For theFirst node U3Receiving a second signaling in step S30; a second signal is sent in step S31.

For theSecond node N4Transmitting a second signaling in step S40; the second signal is received in step S41.

In embodiment 6, the second signaling is used to trigger sending of the second signal, where a time interval between a starting time of a time domain resource occupied by the second signaling and a starting time of a time domain resource occupied by the second signal is equal to a first time interval, and the first time interval is associated with the first offset; the unit of the first time interval is milliseconds.

As an embodiment, the second signaling includes second information used to indicate a second time interval, the unit of the second time interval is milliseconds, and the first time interval is equal to the sum of the second time interval and the first offset.

As an embodiment, the second signaling includes second information used to indicate a second time interval, the unit of the second time interval is milliseconds, and the first time interval is equal to a difference between the second time interval and the first offset.

As an embodiment, the first offset is used to determine the first time interval.

As an embodiment, the time domain resource occupied by the second signaling is a time slot, and the starting time of the time domain resource occupied by the second signaling is the starting time of the time slot occupied by the second signaling.

As a sub-embodiment of this embodiment, the second signaling occupies all or part of the multicarrier symbols included in the timeslot.

As an embodiment, the time domain resource occupied by the second signal is a time slot, and the starting time of the time domain resource occupied by the second signal is the starting time of the time slot occupied by the second signal.

As a sub-embodiment of this embodiment, the second signal occupies all or part of the multicarrier symbols comprised by the time slot.

As an embodiment, the second signaling comprises Msg-3 in a random access procedure, and the second signal comprises Msg-4 in a random access procedure.

As an embodiment, the second signaling is a DCI (Downlink Control Information), and the second signaling is scheduled by the second signaling.

As a sub-embodiment of this embodiment, the Physical layer Channel carrying the second signal includes a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the second signaling is a DCI, the second signal includes CSI, and the second signaling includes a CSI Request (Request) for the CSI.

As a sub-embodiment of this embodiment, the physical layer channel carrying the second signal comprises PUSCH.

As a sub-embodiment of this embodiment, the Physical layer Channel carrying the second signal includes a PUCCH (Physical Uplink Control Channel).

As an embodiment, the second signaling is a DCI, and the DCI is used to schedule a downlink signal; the second signal includes HARQ (Hybrid Automatic Repeat reQuest) feedback for the downlink signal.

As a sub-embodiment of this embodiment, the physical layer channel carrying the second signal comprises a PUCCH.

For one embodiment, the second signal is a physical layer signal.

As one embodiment, the second signal is a baseband signal.

Example 7

Embodiment 7 illustrates a flow chart for determining whether a first timer has expired according to one embodiment of the present application; as shown in fig. 7. In embodiment 7, the first node performs the steps of:

determining whether the first condition is satisfied in step 700, if the first condition is satisfied, proceeding to step 701, if the first condition is not satisfied, returning to step 700;

start a first timer and set the initial value to T1 milliseconds at step 701;

in step 702, it is determined whether the second condition is satisfied, if so, the process proceeds to step 703, and if not, the process proceeds to step 704;

stopping the first timer in step 703 and returning to step 700;

subtracting 1 from the value of the first timer in step 704, and determining whether the value of the first timer is 0, if the value of the first timer is 0, entering step 705, if the value of the first timer is not 0, entering step 702;

RRC operation is performed in step 705 and returns to step 703.

As one embodiment, the first timer is T300.

As a sub-embodiment of this embodiment, the first condition comprises transmitting an RRCSetupRequest.

As a sub-embodiment of this embodiment, the second condition comprises receipt of a RRCSetup message.

As a sub-embodiment of this embodiment, the second condition comprises receiving a RRCReject message.

As a sub-embodiment of this embodiment, the second condition comprises initiating a cell reselection.

As a sub-embodiment of this embodiment, the second condition comprises a higher layer abandoning the connection re-establishment.

As a sub-embodiment of this embodiment, the RRC operation includes resetting the MAC.

As a sub-embodiment of this embodiment, the RRC operation includes releasing the MAC configuration.

As a sub-embodiment of this embodiment, the RRC operation includes re-establishing RLC for all radio bearers.

As a sub-embodiment of this embodiment, the RRC operation includes notifying a higher layer of RRC connection establishment failure.

As one embodiment, the first timer is T301.

As a sub-embodiment of this embodiment, the first condition comprises transmitting a rrcreestableblisterrequest.

As a sub-embodiment of this embodiment, the second condition comprises receiving a RRCReestablishment message.

As a sub-embodiment of this embodiment, the second condition comprises that selecting a cell becomes unsuitable (unsuitable).

As a sub-embodiment of this embodiment, the RRC operation includes entering an RRC IDLE state.

As one embodiment, the first timer is T302.

As a sub-embodiment of this embodiment, the first condition includes receiving RRCReject when RRC connection reestablishment or recovery is performed.

As a sub-embodiment of this embodiment, the second condition comprises entering RRC _ CONNECTED, or entering cell reselection.

As a sub-embodiment of this embodiment, the RRC operation includes notifying higher layers to inhibit mitigation.

As one embodiment, the first timer is T304.

As a sub-embodiment of this embodiment, the first condition comprises receiving a rrcreeconfiguration message comprising a reconfigurationWithSync.

As a sub-embodiment of this embodiment, the second condition comprises successful completion of random access of the associated serving cell.

As a sub-embodiment of this embodiment, the RRC operation includes initiating an RRC reestablishment procedure.

As one embodiment, the first timer is T310.

As a sub-embodiment of this embodiment, the first condition comprises a detected serving cell physical layer channel problem.

As a sub-embodiment of this embodiment, the first condition comprises a received N310 sustained out-of-sync indication.

As a sub-embodiment of this embodiment, the second condition comprises a received N311 synchronization indication.

As a sub-embodiment of this embodiment, the second condition includes receiving rrcreeconfigurationwithsync.

As a sub-embodiment of this embodiment, the second condition comprises initiating a connection re-establishment procedure.

As a sub-embodiment of this embodiment, the RRC operation includes notifying RLF (Radio Link Failure).

As a sub-embodiment of this embodiment, the RRC operation includes entering RRC IDLE.

As a sub-embodiment of this embodiment, the RRC operation includes initiating a connection re-establishment procedure.

As a sub-embodiment of this embodiment, the RRC operation includes initiating an SCG (Secondary Cell Group) Failure.

As an embodiment, the first timer is T311.

As a sub-embodiment of this embodiment, the first condition comprises initiating an RRC reestablishment procedure.

As a sub-embodiment of this embodiment, the second condition comprises selection to a suitable NR cell, or selection to a suitable other RAT cell.

As one embodiment, the first timer is T311.

As a sub-embodiment of this embodiment, the first condition comprises transmitting a RRCResumeRequest.

As a sub-embodiment of this embodiment, the second condition includes receiving RRCResume.

As a sub-embodiment of this embodiment, the second condition comprises receiving an RRCSetup.

As a sub-embodiment of this embodiment, the second condition includes receiving a rrcreelease that includes a suspendeconfig.

As a sub-embodiment of this embodiment, the second condition comprises cell reselection.

As a sub-embodiment of this embodiment, the second condition comprises connection reestablishment cancellation.

As a sub-embodiment of this embodiment, the RRC operation includes entering into performing related operations into RRC IDLE and releasing reason (cause) "RRC recovery failure".

Example 8

Embodiment 8 illustrates a schematic diagram of a first channel quality according to an embodiment of the present application, as shown in fig. 8. In fig. 8, the value of the first channel quality belongs to one of X value ranges, where schematic position diagrams of terminals corresponding to the X value ranges are area #1 to area # X in the drawing, respectively, and X is a positive integer greater than 1. The distances between the areas #1 to # X shown in fig. 8 and the second node shown in the figure are gradually increased, the area #1 corresponds to the center position covered by the second node, and the area # X corresponds to the edge position covered by the second node.

As an embodiment, the region #1 to the region # X correspond to X candidate values, respectively, a value range to which the first channel quality value belongs corresponds to a given region of the region #1 to the region # X, and the first offset is equal to a candidate value corresponding to the given region of the X candidate values.

Example 9

Embodiment 9 illustrates a diagram of a first channel quality and a first offset according to an embodiment of the present application, as shown in fig. 9. In fig. 9, the first channel quality belongs to one of Y value ranges, the Y value ranges respectively correspond to Y candidate values, and the first offset is equal to a candidate value corresponding to the value range to which the first channel quality belongs in the Y candidate values; y is a positive integer greater than 1; w in the figure represents the first channel quality; the Y value ranges are respectively the value range #1 to the value range # Y, and Y in the figure_L(1) And y_U(1) Respectively representing the upper and lower bounds, y, of the value range #1_L(2) And y_U(2) Respectively represent the upper and lower bounds of the value range #2, and so on_L(Y) and Y_U(Y) represents the upper and lower bounds of the numeric area # Y, respectively; candidate #1 to candidate # Y shown in the figure correspond to the Y candidates, respectively.

As an embodiment, the first channel quality belongs to a given value range of Y value ranges, the given value range corresponds to a given candidate value of the Y candidate values, and the first offset is equal to the given candidate value.

As an embodiment, the unit of the upper limit and the lower limit of any of the Y value ranges is dBm.

As an embodiment, the unit of the values of the upper limit and the lower limit of any of the Y value ranges is dB.

As an embodiment, the units of the upper limit and the lower limit of any of the Y value ranges are ms.

As an example, y_U(i) And y_L(i +1) is equal, i is a positive integer greater than 1 and less than (Y-1).

Example 10

Embodiment 10 illustrates a schematic diagram of second signaling and a second signal according to an embodiment of the present application, as shown in fig. 10. In fig. 10, the first node receives the second signaling in a first time window and transmits a second signal in a second time window; the time interval between the start time of the first time window and the second time window is equal to a first time interval, which is associated with the first offset.

As an embodiment, the first time window and the second time window are each one time Slot (Slot).

As an embodiment, the first time window and the second time window are each one Subframe (Subframe).

As an embodiment, the first time window and the second time window are each one micro-slot (Sub-slot).

As an embodiment, the first time window comprises a positive integer number of consecutive multicarrier symbols, the positive integer number being smaller than 14.

As an embodiment, the second time window comprises a positive integer number of consecutive multicarrier symbols, the positive integer number being smaller than 14.

Example 11

Embodiment 11 illustrates a schematic diagram of a service type according to an embodiment of the present application, as shown in fig. 11. In fig. 11, the first channel quality is used to determine the type of service provided by the second node to the first node. The first channel quality value belongs to ZA value range in the value ranges, the position schematic diagrams of the terminals corresponding to the Z value ranges are respectively area #1 to area # Z in the figure, and Z is a positive integer greater than 1; the Z areas respectively correspond to Z service types; the first channel quality value belongs to a given value range in Z value ranges, the given value range corresponds to a given service type in the Z service types, and the second node provides the given service type for the first node; w in the figure represents the first channel quality; the Z value ranges are respectively from a value range #1 to a value range # Z, and y in the figure_L(1) And y_U(1) Respectively representing the upper and lower bounds, y, of the value range #1_L(2) And y_U(2) Respectively represent the upper and lower bounds of the value range #2, and so on for y_L(Z) and y_U(Z) represents the upper and lower bounds of the numeric area # Z, respectively; service types 1 to Z shown in the figure correspond to the Z service types, respectively.

As an example, y_U(i) And y_L(i +1) is equal, i is a positive integer greater than 1 and less than (Z-1).

Example 12

Embodiment 12 illustrates an application scenario diagram of RRC operation according to an embodiment of the present application, as shown in fig. 12. In fig. 12, the first timer is used for RRC connection reestablishment initiated by the first node during Handover (Handover) from the serving cell to a neighboring cell, the first timer expires, and the performing RRC operation includes initiating RRC connection reestablishment.

As an embodiment, the base station to which the serving cell is attached is shown as the second node in this application.

As an embodiment, the base station to which the neighboring cell attaches is shown in the figure as a base station device other than the second node in the present application.

As an example, the serving cell shown in the figure is a Beam Spot (Beam Spot) provided by the second node in the present application, and the neighboring cell shown in the figure is another Beam Spot (Beam Spot) provided by the second node in the present application.

Example 13

Embodiment 13 illustrates a schematic application scenario of RRC operation according to another embodiment of the present application, as shown in fig. 13. In fig. 13, the first timer is used to determine whether the first node is out of synchronization in the serving cell, the first timer expires, and the performing the RRC operation includes initiating connection reestablishment.

As an example, the serving cell shown in the figure is a beam point provided by the second node in the present application.

Example 14

Embodiment 14 illustrates a schematic diagram of a first class of time value sets according to an embodiment of the present application, as shown in fig. 14. In fig. 14, the first class of time value sets is one of P candidate time value sets; any one of the P sets of candidate time values comprises a plurality of candidate time values; the third information is used to determine the first class of time value set from the P candidate time value sets; p is a positive integer greater than 1; the P candidate time value sets respectively correspond to P height areas, and the height of the second node is one of the P height areas. The P height regions shown in the figure are height region 1 to height region P, respectively, and the height regions 1 to P correspond to candidate time value sets #1 to # P, respectively.

Example 15

Embodiment 15 illustrates a block diagram of the structure in a first node, as shown in fig. 15. In fig. 15, a first node 1500 comprises a first receiver 1501, a second receiver 1502 and a first transceiver 1503.

A first receiver 1501 receiving first information, the first information being used to determine a first time value;

a second receiver 1502 that receives a first signal, which is used to determine a first channel quality;

a first transceiver 1503 that determines that a first timer has expired and performs an RRC operation;

in embodiment 15, the first channel quality is used to determine a first offset, the first time value and the first offset are used together to determine T1, the T1 is a positive integer, and the expiration time of the first timer is equal to T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired.

As one embodiment, the first channel quality is used to determine a path loss of a sender of the first signal to the first node.

As one embodiment, the first channel quality is used to determine a second time value between a sender of the first signal and the first node.

For one embodiment, the second receiver 1502 receives a second signal, and the first transceiver 1503 transmits a second signal; the second signaling is used for triggering the sending of the second signal, and a time interval between a starting time of a time domain resource occupied by the second signaling and a starting time of the time domain resource occupied by the second signal is equal to a first time interval, and the first time interval is associated with the first offset; the unit of the first time interval is milliseconds.

As an embodiment, the first channel quality is used to determine a type of traffic supported by a sender of the first signal.

As an embodiment, the first timer is used to determine whether the first node is out of synchronization, the first timer expires, and the performing the RRC operation includes initiating connection reestablishment.

For one embodiment, the first receiver 1501 receives a third signal; the third signal is used to indicate third information, which is used to determine the first set of time values, to which the first time value belongs.

For one embodiment, the first receiver 1501 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

For one embodiment, the second receiver 1502 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

The first transceiver 1503 includes at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the receive processor 456, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 of embodiment 4.

Example 16

Embodiment 16 illustrates a block diagram of the structure in a second node, as shown in fig. 16. In fig. 16, the second node 1600 comprises a first transmitter 1601 and a second transmitter 1602.

A first transmitter 1601 to transmit first information, the first information being used to determine a first time value;

a second transmitter 1602 that transmits a first signal, the first signal being used to determine a first channel quality;

in embodiment 16, the first channel quality is used to determine a first offset, the first time value and the first offset are used together to determine T1, the T1 is a positive integer, the recipient of the first information comprises a first node comprising a first timer, an expiration time of the first timer equals T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired; when the first timer expires, the first node performs an RRC operation.

As one embodiment, the first channel quality is used to determine a path loss of the second node to the first node.

As one embodiment, the first channel quality is used to determine a second time value between the second node and the first node.

For one embodiment, the second transmitter 1602 transmits the second signaling, and the second node 1600 further comprises a third receiver 1603, the third receiver 1603 receives the second signal; the second signaling is used for triggering the sending of the second signal, and a time interval between a starting time of a time domain resource occupied by the second signaling and a starting time of the time domain resource occupied by the second signal is equal to a first time interval, and the first time interval is associated with the first offset; the unit of the first time interval is milliseconds.

As an embodiment, the first channel quality is used to determine the type of traffic supported by the second node.

As an example, the first transmitter 1601 transmits a third signal; the third signal is used to indicate third information, which is used to determine the first set of time values, to which the first time value belongs.

For one embodiment, the first transmitter 1601 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the second transmitter 1602 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the third receiver 1603 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. First node and second node in this application include but not limited to cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, vehicles, vehicle, RSU, aircraft, unmanned aerial vehicle, wireless communication equipment such as remote control plane. The base station 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, an eNB, a gNB, a transmission reception node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, an RSU, and other wireless communication devices.

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

Claims

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

wherein the first channel quality is used to determine a first offset; the sum of the first time value and the first offset is used to determine T1, or the difference of the first time value and the first offset is used to determine T1; the T1 is a positive integer and the expiration time of the first timer is equal to T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired.

2. The first node of claim 1, wherein the first channel quality is used to determine a path loss from a sender of the first signal to the first node.

3. The first node of claim 1, wherein the first channel quality is used to determine a second time value between a sender of the first signal and the first node.

4. The first node according to claim 1 or 2, wherein the second receiver receives a second signaling and the first transceiver transmits a second signal; the second signaling is used for triggering the sending of the second signal, and a time interval between a starting time of a time domain resource occupied by the second signaling and a starting time of the time domain resource occupied by the second signal is equal to a first time interval, and the first time interval is associated with the first offset; the unit of the first time interval is milliseconds.

5. The first node of claim 3, wherein the second receiver receives a second signaling and the first transceiver transmits a second signal; the second signaling is used for triggering the sending of the second signal, and a time interval between a starting time of a time domain resource occupied by the second signaling and a starting time of the time domain resource occupied by the second signal is equal to a first time interval, and the first time interval is associated with the first offset; the unit of the first time interval is milliseconds.

6. The first node of claim 1 or 2, wherein the first channel quality is used to determine the type of traffic supported by the sender of the first signal.

7. The first node of claim 3, wherein the first channel quality is used to determine a type of traffic supported by a sender of the first signal.

8. The first node according to claim 1 or 2, wherein the first timer is used for initiating an RRC connection re-establishment operation in handover, wherein the first timer expires, and wherein the performing an RRC operation comprises initiating an RRC connection re-establishment.

9. The first node of claim 3, wherein the first timer is used to initiate an RRC connection reestablishment operation during handover, wherein the first timer expires, and wherein performing the RRC operation comprises initiating an RRC connection reestablishment.

10. The first node according to claim 1 or 2, wherein the first timer is used for determining whether the first node is out of synchronization, wherein the first timer expires, and wherein the performing the RRC operation comprises initiating a connection re-establishment.

11. The first node of claim 3, wherein the first timer is used to determine whether the first node is out of synchronization, wherein the first timer expires, and wherein performing the RRC operation comprises initiating a connection re-establishment.

12. The first node of claim 1 or 2, wherein the first receiver receives a third signal; the third signal is used to indicate third information, which is used to determine a first set of time values, to which the first time value belongs.

13. The first node of claim 3, wherein the first receiver receives a third signal; the third signal is used to indicate third information, which is used to determine a first set of time values, to which the first time value belongs.

14. A second node configured for wireless communication, comprising:

wherein the first channel quality is used to determine a first offset; the sum of the first time value and the first offset is used to determine T1, or the difference of the first time value and the first offset is used to determine T1; the T1 is a positive integer, the recipient of the first information comprises a first node, the first node comprises a first timer, an expiration time of the first timer equals T1 milliseconds; the starting time value of the first timer is the T1 milliseconds, and the first timer counting down to 0 indicates that the first timer has expired; when the first timer expires, the first node performs an RRC operation.

15. The second node of claim 14,

the first channel quality is used to determine a path loss of the second node to the first node.

16. The second node of claim 14,

the first channel quality is used to determine a second time value between the second node and the first node.

17. The second node according to claim 14 or 15, wherein the second transmitter transmits second signaling, and the second node further comprises a third receiver, the third receiver receiving a second signal; the second signaling is used for triggering the sending of the second signal, and a time interval between a starting time of a time domain resource occupied by the second signaling and a starting time of the time domain resource occupied by the second signal is equal to a first time interval, and the first time interval is associated with the first offset; the unit of the first time interval is milliseconds.

18. The second node of claim 16, wherein the second transmitter transmits second signaling and the second node further comprises a third receiver that receives a second signal; the second signaling is used for triggering the sending of the second signal, and a time interval between a starting time of a time domain resource occupied by the second signaling and a starting time of the time domain resource occupied by the second signal is equal to a first time interval, and the first time interval is associated with the first offset; the unit of the first time interval is milliseconds.

19. The second node according to claim 14 or 15, characterized in that the first channel quality is used for determining the type of traffic supported by the second node.

20. The second node of claim 16, wherein the first channel quality is used to determine the type of traffic supported by the second node.

21. The second node according to claim 14 or 15, wherein the first timer is used for initiating RRC connection re-establishment operation in handover, wherein the first timer expires, and wherein the performing RRC operation comprises initiating RRC connection re-establishment.

22. The second node according to claim 16, wherein the first timer is used for initiating RRC connection reestablishment in handover, wherein the first timer expires, and wherein the performing RRC operation comprises initiating RRC connection reestablishment.

23. The second node according to claim 14 or 15, wherein the first timer is used for determining whether the first node is out of synchronization, wherein the first timer expires, and wherein the performing the RRC operation comprises initiating a connection re-establishment.

24. The second node of claim 16, wherein the first timer is used to determine whether the first node is out of synchronization, wherein the first timer expires, and wherein performing the RRC operation comprises initiating a connection re-establishment.

25. The second node according to claim 14 or 15, characterized in that the first transmitter transmits a third signal; the third signal is used to indicate third information, which is used to determine a first set of time values, to which the first time value belongs.

26. The second node of claim 16, wherein the first transmitter transmits a third signal; the third signal is used to indicate third information, which is used to determine a first set of time values, to which the first time value belongs.

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

determining that a first timer expires and performing RRC operation;

28. The method in the first node according to claim 27, wherein the first channel quality is used for determining the path loss from the sender of the first signal to the first node.

29. The method in the first node according to claim 27, wherein the first channel quality is used for determining a second time value between the sender of the first signal and the first node.

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

receiving a second signaling;

transmitting a second signal;

31. A method in a first node according to claim 29, comprising:

receiving a second signaling;

transmitting a second signal;

32. A method in a first node according to claim 27 or 28, characterised in that the first channel quality is used for determining the type of traffic supported by the sender of the first signal.

33. The method in a first node according to claim 29, characterised in that the first channel quality is used for determining the type of traffic supported by the sender of the first signal.

34. A method in a first node according to claim 27 or 28, wherein the first timer is used for initiating an RRC connection re-establishment operation in handover, the first timer expires, and the performing an RRC operation comprises initiating an RRC connection re-establishment.

35. The method in a first node according to claim 29, wherein the first timer is used in handover to initiate RRC connection re-establishment operation, the first timer expires, and the performing RRC operation comprises initiating RRC connection re-establishment.

36. A method in a first node according to claim 27 or 28, wherein the first timer is used for determining whether the first node is out of synchronisation, wherein the first timer expires, and wherein performing the RRC operation comprises initiating a connection re-establishment.

37. The method in a first node according to claim 29, wherein the first timer is used to determine whether the first node is out of synchronization, wherein the first timer expires, and wherein performing the RRC operation comprises initiating a connection re-establishment.

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

receiving a third signal;

wherein the third signal is used to indicate third information, which is used to determine a first set of time values, to which the first time value belongs.

39. A method in a first node according to claim 29, comprising:

receiving a third signal;

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

41. A method in a second node according to claim 40, characterised in that the first channel quality is used for determining the path loss of the second node to the first node.

42. The method in the second node according to claim 40, wherein the first channel quality is used for determining a second time value between the second node and the first node.

43. A method in a second node according to claim 40 or 41, comprising:

sending a second signaling;

receiving a second signal;

wherein the second signaling is used for triggering the sending of the second signal, and a time interval between a starting time of a time domain resource occupied by the second signaling and a starting time of a time domain resource occupied by the second signal is equal to a first time interval, and the first time interval is associated with the first offset; the unit of the first time interval is milliseconds.

44. A method in a second node according to claim 42, comprising:

sending a second signaling;

receiving a second signal;

45. A method in a second node according to claim 40 or 41, characterised in that the first channel quality is used for determining the type of traffic supported by the second node.

46. The method in the second node according to claim 42, wherein the first channel quality is used for determining the type of traffic supported by the second node.

47. A method in a second node according to claim 40 or 41, wherein the first timer is used for initiating RRC connection reestablishment in handover, the first timer expires, and the performing RRC operation comprises initiating RRC connection reestablishment.

48. The method in a second node according to claim 42, wherein the first timer is used in handover to initiate RRC connection reestablishment, wherein the first timer expires, and wherein performing RRC operation comprises initiating RRC connection reestablishment.

49. A method in a second node according to claim 40 or 41, wherein the first timer is used for determining whether the first node is out of synchronisation, wherein the first timer expires, and wherein performing RRC operation comprises initiating a connection re-establishment.

50. The method in a second node according to claim 42, wherein the first timer is used to determine whether the first node is out of synchronization, wherein the first timer expires, and wherein performing RRC operation comprises initiating a connection re-establishment.

51. A method in a second node according to claim 40 or 41, comprising:

transmitting a third signal;

52. A method in a second node according to claim 42, comprising:

transmitting a third signal;