CN110831207A

CN110831207A - Communication method and device

Info

Publication number: CN110831207A
Application number: CN201810891376.4A
Authority: CN
Inventors: 何青春; 常俊仁; 张向东; 宫平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-08-07
Filing date: 2018-08-07
Publication date: 2020-02-21
Also published as: WO2020029854A1

Abstract

The application provides a communication method and a device, wherein the communication method comprises the following steps: user Equipment (UE) sends a Scheduling Request (SR) to network equipment, wherein the SR is used for requesting uplink resources, the UE maintains a timer, and the UE executes BWP switching when the timer expires; the UE stops or restarts the timer when a first condition is satisfied, the first condition being related to the SR; the method comprises the steps that a network device receives a scheduling request SR sent by user equipment UE, the network device maintains a timer corresponding to the UE, the network device determines that the UE performs switching of a part of bandwidth BWP when the timer expires, the network device stops or restarts the timer when the SR is received, so that the UE timer is stopped or restarted, the timer corresponding to the UE maintained by the network device is stopped or restarted, the expiration of the UE timer is delayed, and the increase of transmission delay caused by the BWP switching of the UE is avoided.

Description

Communication method and device

Technical Field

The present application relates to the field of mobile communications technologies, and in particular, to a communication method and apparatus.

Background

According to the partial Bandwidth (BWP) technique proposed by the New Radio (NR), BWP can be considered as a partial bandwidth of a cell, and each User Equipment (UE) can be configured to operate on several BWPs, but only one BWP is active at the same time, and if the UE wants to change the active BWP, BWP handover is required. The BWP deactivation timer is one of the ways to control the BWP switching, and if the BWP deactivation timer maintained by the UE expires (expired), the UE will switch from the currently activated BWP to the initial BWP (initial BWP) or the default BWP (default BWP).

However, the data transmission of the UE is limited during BWP handover, which results in an increase in the transmission delay of the UE.

Disclosure of Invention

The present application provides a communication method and apparatus for solving the technical problem of increased UE transmission delay due to BWP handover.

In a first aspect, a communication method provided in an embodiment of the present application includes: user Equipment (UE) sends a Scheduling Request (SR) to network equipment, wherein the SR is used for requesting uplink resources, the UE maintains a timer, and the UE executes BWP switching when the timer expires; the UE stops or restarts the timer when a first condition is satisfied, the first condition being related to the SR; the network equipment receives a scheduling request SR sent by user equipment UE, the network equipment maintains a timer corresponding to the UE, the network equipment determines that the UE performs switching of a partial bandwidth BWP when the timer expires, and the network equipment stops or restarts the timer when the SR is received.

By adopting the method, the UE timer can be stopped or restarted according to the SR sent by the UE to the network equipment, and the timer corresponding to the UE maintained by the network equipment can be stopped or restarted, so that the expiration of the timer of the UE is delayed, and the increase of transmission delay caused by BWP switching of the UE is avoided. The timer here may refer to a BWP deactivation timer.

In one possible design, the first condition may include the UE triggering the SR, and/or the UE transmitting the SR.

In one possible design, the UE may stop or restart the timer when the SR is triggered; alternatively, the UE may stop or restart the timer after triggering the SR; or, when the UE sends the SR to the network device, the UE stops or restarts the timer; or, after the UE sends the SR to the network device, the UE stops or restarts the timer.

In one possible design, the UE may send the SR one or more times within the first duration. Thus, the UE may stop or restart the timer each time the SR is triggered or transmitted, further deferring the expiration of the timer.

In one possible design, the UE may send the SR to the network device when determining to send uplink data to the network device. Therefore, when determining that uplink data needs to be sent to the network device, the UE may defer the expiration of the timer by using the communication method provided in the embodiment of the present application, so as to avoid an increase in transmission delay caused by BWP handover.

In one possible design, the UE may perform the stopping or restarting of the timer according to the cell covered by the network device: if the first cell covered by the network device is the primary serving cell of the UE, the UE may stop or restart the timer corresponding to the first BWP, where the first BWP is the BWP governed by the first cell, and the network device may stop or restart the timer corresponding to the first BWP corresponding to the UE; if the second cell covered by the network device is the secondary serving cell of the UE, the UE may stop or restart the timer corresponding to the first BWP and/or the timer corresponding to the second BWP, and the network device may stop or restart the timer corresponding to the first BWP and/or the timer corresponding to the second BWP, where the first BWP is the BWP managed by the first cell, the first cell is the primary serving cell of the UE, and the second BWP is the BWP managed by the second cell. In an implementation, the network device may perform synchronization maintenance of the timer with the UE.

In a possible design, if the second cell covered by the network device is the secondary serving cell of the UE, and the first cell is the primary serving cell of the UE, the UE may receive uplink grant information for indicating uplink resources through at least one downlink BWP on the first cell; and/or the UE may receive the uplink grant information through at least one downlink BWP on the second cell.

In a second aspect, a communication method provided in an embodiment of the present application includes: the UE receives a first message from the network equipment, wherein the first message is a broadcast message or a paging message sent by the network equipment, the UE maintains a timer, and the UE executes the switching of BWP when the timer expires; the UE stops or restarts the timer when a second condition is satisfied, the first condition being related to a response message of the first message; the network device receives a response message of a first message sent by User Equipment (UE), maintains a timer corresponding to the UE, determines that the UE performs switching of a partial bandwidth BWP when the timer expires, and stops or restarts the timer when receiving the response message.

By adopting the method, the UE receiving the broadcast message or the paging message of the network equipment can stop or restart the UE timer according to the response message sent to the network equipment, and the network equipment can stop or restart the timer corresponding to the UE maintained by the network equipment so as to delay the expiration of the timer of the UE and avoid the increase of transmission delay caused by the BWP switching of the UE. The timer here may refer to a BWP deactivation timer.

In one possible design, the second condition may include the UE triggering the response message and/or the UE sending the response message.

In one possible design, the UE may stop or restart the timer when the response message is triggered; alternatively, the UE may stop or restart the timer after triggering the response message; alternatively, the UE may stop or restart the timer when sending the response message to the network device; alternatively, the UE may stop or restart the timer after sending the response message to the network device.

In one possible design, the UE may send the response message one or more times within a second duration after receiving the first message. Thus, the UE may stop or restart the timer each time a response message is triggered or sent, further deferring the expiration of the timer.

In one possible design, the response message sent by the UE may include an SR or an SRs.

In one possible design, the response message is used to indicate that the UE received the first message.

In one possible design, the UE may perform the stopping or restarting of the timer according to the cell covered by the network device: if the first cell covered by the network device is the primary serving cell of the UE, the UE may stop or restart the timer corresponding to the first BWP, where the first BWP is the BWP governed by the first cell, and the network device may stop or restart the timer corresponding to the first BWP corresponding to the UE; if the second cell covered by the network device is the secondary serving cell of the UE, the UE may stop or restart the timer corresponding to the first BWP and/or the timer corresponding to the second BWP, where the first BWP is the BWP managed by the first cell, the first cell is the primary serving cell of the UE, the network device may stop or restart the timer corresponding to the first BWP and/or the timer corresponding to the second BWP, and the second BWP is the BWP managed by the second cell. In an implementation, the network device may perform synchronization maintenance of the timer with the UE.

In one possible design, the network device may send a feedback message to the UE after receiving the response message to indicate that it received the response message.

In a third aspect, an UE provided in an embodiment of the present application includes a transceiver module and a processing module, where based on the communication method in the first aspect, the transceiver module is configured to send a scheduling request SR to a network device, where the SR is used to request an uplink resource, the UE maintains a timer, and when the timer expires, the UE performs a handover of a partial bandwidth BWP; the processing module may be configured to stop or restart the timer when a first condition is satisfied, the first condition being related to the SR.

In one possible design, the first condition includes at least one of the following conditions: the UE triggers the SR; alternatively, the transceiver module transmits the SR.

In one possible design, the processing module is configured to stop or restart the timer when a first condition is met, and includes: the processing module is used for stopping or restarting the timer when the SR is triggered; or, the processing module is configured to stop or restart the timer after triggering the SR; or, the processing module is configured to stop or restart the timer when sending the SR to the network device; or, the processing module is configured to stop or restart the timer after sending the SR to the network device.

In one possible design, the transceiver module is configured to transmit a scheduling request SR to a network device, and includes: the transceiver module is configured to transmit the SR one or more times within a first duration.

In one possible design, the processing module is further configured to determine to send uplink data to the network device.

In one possible design, the first cell covered by the network device is a primary serving cell of the UE; the processing module is used for stopping or restarting the timer, and comprises: the processing module is configured to stop or restart a timer corresponding to a first BWP, where the first BWP is a BWP governed by the first cell.

In one possible design, a first cell covered by the network device is a primary serving cell of the UE, and a second cell covered by the network device is a secondary serving cell of the UE; the processing module is configured to stop the timer, and includes: the processing module is configured to stop a timer corresponding to a first BWP and/or a timer corresponding to a second BWP, where the first BWP is the BWP administered by the first cell, and the second BWP is the BWP administered by the second cell; the processing module is configured to restart the timer, and includes: the processing module is configured to restart a timer corresponding to the first BWP and/or a timer corresponding to the second BWP.

In one possible design, the transceiver module is further configured to receive uplink grant information on at least one downlink BWP in the first cell, where the uplink grant information is used to indicate uplink resources; and/or receiving the uplink grant information on at least one downlink BWP on the second cell.

Based on the communication method in the second aspect, the transceiver module in the UE according to this embodiment of the present application may be further configured to receive a first message from a network device, where the first message is a broadcast message or a paging message sent by the network device, and the UE maintains a timer, and when the timer expires, the UE performs handover of the partial bandwidth BWP; the processing module may be further configured to stop or restart the timer when a second condition is satisfied, the second condition being related to a response message to the first message.

In one possible design, the second condition includes at least one of the following conditions:

the UE triggers the response message; or

The transceiver module transmits the response message.

In one possible design, the processing module is configured to stop or restart the timer when a second condition is met, and includes at least one of: the processing module is used for stopping or restarting the timer when the response message is triggered; or, the processing module is configured to stop or restart the timer after triggering the response message; or, the processing module is configured to stop or restart the timer when sending the response message to the network device; or, the processing module is configured to stop or restart the timer after sending the response message to the network device.

In one possible design, the transceiver module is further configured to send the response message one or more times within a second duration after receiving the first message.

In one possible design, the response message includes a scheduling request SR or a sounding reference signal SRs.

In one possible design, the response message may indicate that the UE received the first message.

In a fourth aspect, an embodiment of the present application further provides a network device, where the network device includes a transceiver module and a processing module. Based on the communication method in the first aspect, the transceiver module may be configured to receive a scheduling request SR sent by a user equipment UE, where the SR is used to request an uplink resource, the network device maintains a timer corresponding to the UE, and the network device determines that the UE performs handover of a partial bandwidth BWP when the timer expires; the processing module may be configured to stop or restart the timer upon receiving the SR.

Based on the communication method in the second aspect, the transceiver module in the network device according to the embodiment of the present application may be further configured to receive a response message of a first message sent by a user equipment UE after the network device sends the first message, where the first message is a broadcast message or a paging message, the network device maintains a timer corresponding to the UE, and when the timer expires, the network device determines that the UE performs handover of a partial bandwidth BWP; the processing module may be further configured to stop or restart the timer upon receiving the SR.

In one possible design, a first cell covered by the network device is a primary serving cell of the UE, and a second cell covered by the network device is a secondary serving cell of the UE;

the processing module is configured to stop the timer, and includes:

the processing module is configured to stop a timer corresponding to a first BWP and/or a timer corresponding to a second BWP, where the first BWP is the BWP administered by the first cell, and the second BWP is the BWP administered by the second cell; the processing module is configured to restart the timer, and includes: the processing module is configured to restart a timer corresponding to the first BWP and/or a timer corresponding to the second BWP.

In a fifth aspect, an embodiment of the present application provides a user equipment UE, which includes a memory for storing instructions and a processor for executing the instructions stored by the memory, and the execution of the instructions stored in the memory causes the processor to perform the method involved in the UE in the first aspect, in any possible design of the first aspect, in the second aspect, or in any possible design of the second aspect.

In a sixth aspect, an embodiment of the present application provides a network device, which includes a memory for storing instructions and a processor for executing the instructions stored in the memory, and the execution of the instructions stored in the memory causes the processor to perform the method involved in the network device in the first aspect, any possible design of the first aspect, the second aspect, or any possible design of the second aspect.

In a seventh aspect, an embodiment of the present application provides a communications apparatus, including a memory, a processor, and a program stored on the memory and executable on the processor, where the processor executes the program to perform the method performed by the UE or the network device in the first aspect, any possible design of the first aspect, the second aspect, or any possible design of the second aspect.

In an eighth aspect, embodiments of the present application provide a computer-readable storage medium on which a computer program is stored, which when executed by a processor, implements the method performed by the UE or the network device in the first aspect, in any possible design of the first aspect, in the second aspect, or in any possible design of the second aspect.

Drawings

Fig. 1 is a schematic architecture diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of an NR scenario architecture according to an embodiment of the present disclosure;

fig. 3 is a structure of a user equipment UE according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 5 is a flowchart illustrating a communication method according to an embodiment of the present application;

fig. 6 is a flowchart illustrating another communication method according to an embodiment of the present application;

fig. 7 is a flowchart illustrating another communication method according to an embodiment of the present application;

fig. 8 is a flowchart illustrating another communication method according to an embodiment of the present application;

fig. 9 is a structure of another UE according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another network device according to an embodiment of the present application;

fig. 11 is a structure of another UE according to an embodiment of the present application;

fig. 12 is a structure of another UE according to an embodiment of the present application;

fig. 13 is a structure of another user equipment UE according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.

The following explains the words that the present application relates to or may relate to:

1. at least one means one, or more than one, i.e., including one, two, three, and more than one.

2. Carrying may mean that a certain message is used to carry certain information or data, or that a certain message is composed of certain information.

3. The mechanism is that after the BWP deactivation timer maintained by the UE expires, the UE may deactivate the currently activated BWP, and the UE switches to the initial BWP or default bwwp (i.e., activate the initial BWP or default BWP). Accordingly, the network device side also maintains a BWP deactivation timer of the UE, and before the BWP deactivation timer expires, the network device considers that the UE does not perform BWP handover, so that the network device can perform downlink transmission to the UE through the BWP.

4. The stop timer means to temporarily stop or terminate the timing of the control timer.

5. Restarting the timer means that the timer in the timing process is instructed to restart the timing, for example, the timing range of the timer is from 0 millisecond (ms) to 10ms from small to large, and after restarting the timer, the timer will restart from 0 ms.

Hereinafter, embodiments of the present application will be described in detail with reference to the drawings. First, a communication system provided in the embodiment of the present application is introduced, then a sending end device and a user device provided in the embodiment of the present application are introduced, respectively, and finally a method for controlling data transmission provided in the embodiment of the present application is introduced.

Fig. 1 is a schematic architecture diagram of a wireless communication system 100 according to an embodiment of the present application, where the wireless communication system 100 includes a UE101 and a network device 102. The wireless communication system 100 provided in the embodiment of the present application includes, but is not limited to, a next generation 5G mobile communication system (5th-generation, fifth generation mobile communication system), an NR communication system, and the like.

Illustratively, the UE101 can be a terminal (terminal), a Mobile Station (MS), a mobile terminal (mobile terminal), etc., and the UE101 can communicate with one or more network devices of one or more communication systems and can accept network services provided by the network devices, including but not limited to the illustrated network device 102. By way of example, the UE101 in the embodiments of the present application may be a mobile telephone (or "cellular" telephone), a computer with a mobile terminal, etc., and the UE101 may also be a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device. The UE101 may also be a communication chip having a communication module.

The network side device 102 may include a base station, or include a base station and a radio resource management device for controlling the base station, and the base station may be a relay station (relay device), an access point, a vehicle-mounted device, a wearable device, and a base station in a future 5G network or a base station in a future evolved Public Land Mobile Network (PLMN) network, for example, a new air interface base station, and the embodiments of the present application are not limited thereto.

It should be understood that the above-described wireless communication system 100 may be applied to an NR scenario, as shown in fig. 2, an exemplary NR scenario may include an NR core network 201, and the NR scenario may further include a new air interface access network 202, where the NR core network 201 and the new air interface access network 202 implement interaction through an interface. In the NR scenario, functional entities for implementing the communication method according to the embodiment of the present application are network equipment and user equipment. Specifically, the UE101 according to the embodiment of the present application may include a UE connected to a network device connected to a new air interface access network 202, for example, the UE 203 shown in fig. 2, where the UE 203 is connected to the network device 204 through a wireless link, and the network device 204 may be a network device in the new air interface access network 202; the UE101 according to the embodiment of the present application may further include a UE connected to a relay, for example, the UE 205 shown in fig. 2, where the UE 205 is connected to the relay device 206, and the relay device 206 is connected to the network device 204 through a relay link. The network device 102 according to the embodiment of the present application may be the network device 204 in the new air interface access network 202 shown in fig. 2, or may be the relay device 206 connected to the network device 204 shown in fig. 2.

For example, a UE101 provided in the embodiments of the present application may have a structure as shown in fig. 3, where the UE may be a UE supporting 5G and/or 4G communication. The UE101 may maintain a timer, which may refer to a BWP deactivation timer, when the timer expires, the UE will perform a BWP handover (perform deactivation operation on the currently activated BWP and activate a new BWP, such as initial BWP or default BWP). As shown in fig. 3, the UE101 may include a processor 301, a transceiver 302. The processor 301 may be configured to enable the UE101 to implement the steps involved in the UE101 in the method provided in the embodiment of the present application, for example, the processor 301 may be configured to stop or restart a timer maintained by the UE 101; the transceiver 302 can be coupled with the antenna 303 for supporting interaction by the UE101, e.g., can be used for the UE101 to transmit a Scheduling Request (SR) to the network device 102. Illustratively, the UE101 may further include a memory 304, in which computer programs, instructions are stored, and the memory 304 may be coupled with the processor 301 and/or the transceiver 302, for enabling the processor 301 to call the computer programs, instructions in the memory 304 to implement the steps involved by the UE101 in the method provided by the embodiments of the present application; in addition, the memory 304 may also be used for storing data related to embodiments of the method of the present application, for example, for storing data, instructions necessary to support the transceiver 302 to implement the interaction, and/or for storing configuration information necessary for the UE101 to perform the method of the embodiments of the present application.

Illustratively, the network device 102 provided in the embodiments of the present application may have a structure as shown in fig. 4. Network device 102 may maintain a timer for the UE that the network device determines to perform the BWP handover for the UE upon expiration of the timer, where the timer may refer to a BWP deactivation timer. According to fig. 4, the network device 102 may include a processor 401, a transceiver 402. The processor 401 may be configured to enable the network device 102 to implement the steps involved in the network device 102 in the method provided in the embodiment of the present application, for example, the processor 401 may be configured to enable the network device 102 to stop or restart a timer corresponding to a UE maintained by the network device 102; the transceiver 402 may be coupled with an antenna 403 for supporting interaction with the network device 102, e.g., may be used for the network device 102 to receive an SR transmitted by the communication device 101. Illustratively, the network device 102 may also include other interfaces 404 for enabling the network device 102 to interact via wires, for example, the other interfaces 404 may be fiber optic link interfaces, ethernet interfaces, copper wire interfaces, and the like. Illustratively, the network device 102 may further include a memory 405, in which computer programs and instructions may be stored, the memory 405 may be coupled with the processor 401, the transceiver 402 and the other interface 404, and is used for supporting the processor 401 to call the computer programs and instructions in the memory 403 to implement the steps involved in the network device 102 in the method provided by the embodiment of the present application; in addition, the memory 405 may also be used for storing data related to embodiments of the methods of the present application, for example, for storing data and instructions necessary to enable the transceiver 402 and/or other interfaces 404 to interact.

Take the wireless communication system 100 shown in fig. 1 as an example, wherein the UE101 maintains a timer, and the UE101 will perform the BWP handover when the timer expires; the network device 102 maintains a timer corresponding to the UE101, and when the timer expires, the network device determines that the UE performs BWP handover, a communication method provided in an embodiment of the present application may include the steps as shown in fig. 5:

step S101: the UE101 sends an SR to the network equipment 102, wherein the SR is used for requesting uplink resources;

step S102: the UE101 stops or restarts the timer when a first condition is satisfied, wherein the first condition relates to the SR;

step S103: when the network device 102 receives the SR, the timer corresponding to the UE101 is stopped or restarted.

By adopting the method, the UE101 can stop or restart the timer maintained by the UE101 when the first condition related to the SR is met, the activation duration of the currently activated BWP is prolonged, and the increase of transmission delay caused by invalid switching is avoided; meanwhile, the network device 102 may perform synchronization maintenance of the timer corresponding to the UE101 at the time when the SR is received, so as to avoid transmission delay caused by the fact that the network device 102 thinks that the UE101 performs BWP handover but the UE101 does not yet perform BWP handover.

It should be noted that the timer involved in the embodiments of the present application may deactivate the timer for BWP. The embodiments of the present application do not limit the number of timers maintained by the UE101, which is related to the number of BWPs activated by the UE 101; and, the present application is not limited in its strength to the number of timers corresponding to the UE101 maintained by the network device 102, which number is related to the number of BWPs activated by the UE 101.

Before the steps shown in S101 are executed, the UE101 may further determine that there is uplink data to be sent to the network device 102, so that through the execution of the steps shown in S101-S103, in the case that the UE101 needs to send uplink data and has sent an SR to the network device 102, the UE101 may be prevented from switching BWP due to the expiration of the BWP deactivation timer before receiving uplink grant information of the network device 102 for indicating an uplink resource, so as to avoid an increase in transmission delay caused by the BWP switching.

For example, in the implementation of step S101, the UE101 may send the SR to the network device 102 one or more times within the preset first duration. It should be understood that the first duration here may be a time window for uplink transmission, and the time window may be used for uplink data transmission by the UE101, for example, the first duration may be a duration corresponding to one or more time domain symbols corresponding to BWP currently activated by the UE101, or the first duration may be a duration corresponding to one or more time slots, and the first duration may also be a duration corresponding to one or more subframes.

In the implementation of the step shown in S101, the UE101 may perform SR transmission on a first BWP and/or a second BWP, where the first BWP is a BWP governed by a first cell of the UE101, the second BWP is a BWP governed by a second cell of the UE101, the first cell is a primary serving cell supporting random access and serving the UE101, and the second cell is a secondary serving cell serving the UE101 and used for increasing traffic throughput; in this case, the UE101 may maintain a timer corresponding to the first BWP and a timer corresponding to the second BWP, respectively, where the timer corresponding to the first BWP is switched from the first BWP when the timer expires, and the UE101 is switched from the second BWP before the timer corresponding to the second BWP expires.

It should be understood that the first condition involved in the step shown in S102 may be that the UE101 triggers (triggered) SR, and the timer maintained by the UE101 may be stopped or restarted from the UE101 while the transmission of SR is triggered; and/or the first condition may be that the UE101 transmits a (transmitted) SR, for example, the UE101 stops or restarts a timer corresponding to the UE101 while transmitting the SR through the antenna.

Specifically, the UE 102 may stop or restart the timer at the same time as the SR is triggered, or the UE101 may also stop or restart the timer after the SR is triggered, for example, the UE101 may be configured to stop or restart the timer within a first threshold duration after the SR is triggered, where the first threshold duration may be configured by a preset value, for example, the first threshold duration may be less than a duration represented by one or more time slots corresponding to the BWP currently activated by the UE101, or the first threshold duration may be less than a duration represented by one or more time slot symbols corresponding to the BWP currently activated by the UE101, or the first threshold duration may approach infinity. The UE 102 may also stop or restart the timer while transmitting the SR, or the UE101 may also stop or restart the timer after transmitting the SR, for example, the UE101 may be configured to stop or restart the timer within a second threshold duration after transmitting the SR, where the second threshold duration may be configured by using a preset value, for example, the second threshold duration may be less than a duration represented by one or more time slots corresponding to the currently activated BWP of the UE101, or the second threshold duration may be less than a duration represented by one or more time slot symbols corresponding to the currently activated BWP of the UE101, or the second threshold duration may approach infinity.

In the implementation of the step shown in S102, the UE101 may stop or restart the timer according to the cell covered by the network device 102, specifically, if the cell covered by the network device 102 is the first cell, the UE101 may suspend or stop the timer corresponding to the first BWP when the first condition is satisfied; if the cell covered by the network device 102 is the second cell, when the first condition is satisfied, the timer corresponding to the first BWP may be suspended or stopped; if the uplink data needs to be sent on the second BWP, the UE101 may suspend or stop the timer corresponding to the first BWP; and/or if the uplink data needs to be sent on the second BWP, the UE101 may also pause or stop the timer corresponding to the second BWP.

For example, if the first cell is a primary serving cell of the UE101 and the second cell is a secondary serving cell of the UE101, after receiving the SR through the step shown in S103, the network device 102 may further send uplink grant information on one or more downlink BWPs of the first cell, where the uplink grant information is used to indicate uplink resources; alternatively, the network device 102 may perform the sending of the uplink grant information on one or more downlink BWPs of the second cell. It should be understood that the uplink grant information referred to herein may be encapsulated as Downlink Control Information (DCI) for indicating uplink resources to the UE 101; the content of the uplink grant information includes, but is not limited to, information indicating the time-frequency domain resource, the coding modulation scheme, and the spatial channel parameter used by the UE101 for uplink transmission.

For example, the network device 102 may perform synchronous maintenance of the timer with the UE101, that is, the timer that the network device 102 stops or restarts may correspond to the timer that the UE101 stops or pauses in step S102, for example, if the UE101 stops the timer corresponding to the first BWP, the network device 102 may stop the timer corresponding to the first BWP of the UE101 that is maintained by itself; or, if the UE101 restarts the timer corresponding to the first BWP, the network device 102 may restart the timer corresponding to the first BWP of the UE101 that is maintained by itself; or, if the UE101 stops the timer corresponding to the second BWP, the network device 102 may stop the timer corresponding to the second BWP of the UE101 that is maintained by itself; or, if the UE101 restarts the timer corresponding to the second BWP, the network device 102 may restart the self-maintained timer corresponding to the second BWP of the UE 101; alternatively, if the UE101 stops the timer corresponding to the first BWP and stops the timer corresponding to the second BWP, the network device 102 may stop the timer corresponding to the first BWP of the UE101 maintained by itself and stop the timer corresponding to the second BWP of the UE101 maintained by itself; alternatively, if the UE101 restarts the timer corresponding to the first BWP and restarts the timer corresponding to the second BWP, the network device 102 may restart the timer corresponding to the first BWP of the UE101 maintained by itself and restart the timer corresponding to the second BWP of the UE101 maintained by itself.

In the implementation of step S103, the network device 102 may transmit the uplink grant information on at least one downlink BWP on the first cell and/or at least one downlink BWP on the second cell, so that the UE101 may receive the uplink grant information on at least one downlink BWP on the first cell and/or at least one downlink BWP on the second cell.

Also for example, the wireless communication system 100 shown in fig. 1, wherein the UE101 maintains a timer, and the UE101 will perform the BWP handover when the timer expires; the network device 102 maintains a timer corresponding to the UE101, and when the timer expires, the network device determines that the UE performs BWP handover, another method for reducing data reception latency according to the embodiment of the present application may include the steps as shown in fig. 6:

step S201: the UE101 receives a first message from the network device 102, where the first message is a broadcast message or a paging message sent by the network device 102;

step S202: the UE101 stops or restarts a timer maintained by the UE101 when a second condition is satisfied, the second condition being related to the response message to the first message;

step S203: the network device 102 stops or restarts the timer corresponding to the UE101 when receiving the response message of the first message sent by the UE 101.

By adopting the method, the UE101 can stop or restart the timer maintained by the UE101 when the second condition related to the response message of the first message is met, so as to prolong the activation duration of the currently activated BWP to reduce the transmission delay; when receiving the response message sent by the UE101, the network device 102 stops or restarts the timer corresponding to the UE101, so as to avoid the occurrence of asynchronous maintenance of the timers of the UE101 and the network device 102, and avoid transmission delay caused by the fact that the network device 102 thinks that the UE101 performs BWP handover but the UE101 does not actually perform BWP handover.

In the implementation of the step shown in S201, the network device 102 may send the first message on a first BWP, and/or the network device 102 may send the first message on a second BWP, where the first BWP is a BWP governed by a first cell of the UE101, the second BWP is a BWP governed by a second cell of the UE101, the first cell is a primary serving cell supporting random access and serving the UE101, and the second cell is a secondary serving cell serving the UE101 and used for increasing traffic throughput.

The first message may be a broadcast message sent by the network device 102, where the broadcast message may be scrambled by a system information radio network temporary identifier (SI-RNTI); the first message may also be a paging message, which is scrambled by a paging radio network temporary identifier (P-RNTI). For example, the first message may be a SI-RNTI scrambled DCI or the first message may be a P-RNTI scrambled DCI.

In the implementation of the step shown in S202, the response message sent by the UE101 may be a specific uplink indication message for identifying the first message, for example, the response message may be packaged as an SR or a Sounding Reference Signal (SRs). In an implementation, the response message may indicate, either explicitly or implicitly, that the UE101 received the first message.

In the implementation of the step shown in S201, the UE101 may send the response message one or more times within a second duration after receiving the first message. The second duration may be a preset duration, and the UE101 may send the response message one or more times within the second duration, for example, the second duration may be a duration corresponding to one or more time domain symbols corresponding to BWP currently activated by the UE101, or the second duration may be a duration corresponding to one or more time slots, or the second duration may be a duration corresponding to one or more subframes.

It should be understood that the second condition involved in the step shown in S202 may be that the UE101 triggers a response message, and the timer maintained by the UE101 may be stopped or restarted from the UE101 while the transmission of the response message is triggered; and/or, the second condition may be that the UE101 sends a response message, e.g., the UE101 stops or restarts a timer corresponding to the UE101 while sending the response message through the antenna.

Specifically, the UE 102 may stop or restart the timer at the same time as the response message is triggered, and the UE101 may also stop or restart the timer after the response message is triggered, for example, the UE101 may be configured to stop or restart the timer within a third threshold duration after the response message is triggered, where the third threshold duration may be configured by a preset value, for example, the third threshold duration may be less than a duration represented by one or more slots corresponding to the BWP currently activated by the UE101, or the third threshold duration may be less than a duration represented by one or more slot symbols corresponding to the BWP currently activated by the UE101, or the third threshold duration may approach infinity. The UE 102 may also stop or restart the timer while sending the response message, and the UE101 may also stop or restart the timer after sending the response message, for example, the UE101 may be configured to stop or restart the timer within a fourth threshold duration after sending the SR, where the fourth threshold duration may be configured by using a preset value, for example, the fourth threshold duration may be less than a duration represented by one or more time slots corresponding to the BWP currently activated by the UE101, or the fourth threshold duration may be less than a duration represented by one or more time slot symbols corresponding to the BWP currently activated by the UE101, or the fourth threshold duration may approach infinity.

For example, in the implementation of step S202, the UE101 may stop or restart the timer according to the cell covered by the network device 102. Specifically, if the cell covered by the network device 102 is the first cell, the UE101 receives the first message on the first BWP covered by the first cell, and the UE101 may suspend or stop the timer corresponding to the first BWP; if the cell covered by the network device 102 is the second cell, the UE101 receives the first message on the second BWP, and the UE101 may suspend or stop the timer corresponding to the first BWP; and/or, if the cell covered by the network device 102 is the second cell, the UE101 receives the first message on the second BWP, and the UE101 may further suspend or stop the timer corresponding to the second BWP.

In a possible implementation manner, after receiving the response message sent by the UE101 in the step shown in S203, the network device 102 may send a feedback message to the UE101 to indicate that the response message is received. It should be understood that the step of sending the feedback message by the network device 102 is not a necessary step of the method for reducing the data receiving delay provided in the embodiment of the present application, and the network device 102 may not send the feedback message after receiving the response message, so as to save the signaling overhead.

In the implementation of the step shown in S203, the network device 102 may trigger a timer corresponding to the UE101 and maintained by the network device 102 to stop or restart the timer at the time of receiving the response message, so as to extend the duration of the timer, and the network device 102 may determine that the UE101 does not perform BWP handover before the timer expires. For example, the network device 102 may perform synchronous maintenance of the timer with the UE101, that is, the timer that the network device 102 stops or restarts, and a specific method for the network device 102 to perform synchronous maintenance of the timer with the UE101 may be referred to the foregoing description of the embodiments of the present application.

If the first cell is a primary serving cell of the UE101 and the second cell is a secondary serving cell of the UE101, an embodiment of the present application provides a communication method, including the following steps as shown in fig. 7:

step 701: the UE101 determines that uplink data are to be sent; wherein, the UE101 maintains a timer, and when the timer expires, the UE101 performs BWP handover;

step 702: the UE101 sends a scheduling request SR to the network equipment 102 for requesting uplink resources;

step 703: the UE101 stops or restarts the timer when the SR is triggered and/or sent; in implementation, if the uplink data UE101 to be sent is uplink data to be sent on a first BWP, the UE101 may stop or restart a timer corresponding to the first BWP, where the first BWP is a BWP governed by a first cell; if the uplink data UE101 to be sent is uplink data to be sent on the second BWP, the UE101 may stop or restart the timer corresponding to the first BWP and/or the timer corresponding to the second BWP, where the second BWP is the BWP governed by the second cell;

step 704: the network device 102 stops or restarts a timer corresponding to the UE101 maintained by the network device 102 at the time of receiving the SR sent by the UE 101; the network device 102 may stop or restart the partial bandwidth timer corresponding to the first BWP maintained by the network device 102 and corresponding to the UE101, and/or the network device 102 may stop or restart the partial bandwidth timer corresponding to the second BWP maintained by the network device 102;

step 705: the network device 102 sends uplink grant information to the UE101 to indicate uplink resources and grant the UE101 for uplink transmission; in implementation, the network device 102 may send the uplink grant information on the BWP governed by the first cell and/or the second cell;

step 706: the UE101 receives uplink authorization information sent by the network equipment 102 and sends uplink data; in implementation, the UE101 may receive the uplink grant information on the BWP governed by the first cell and/or the second cell.

By adopting the method, the UE101 triggers the sending of the scheduling request SR to the network equipment 102 after determining that the uplink data needs to be sent, and when the SR is triggered or the SR is sent, the UE101 stops or restarts the timer, so that the timer reaches the expiration state later to delay the BWP switching performed by the UE101, compared with the prior art, the UE101 can keep the BWP which is activated at present and has lower transmission delay, thereby realizing the reduction of the transmission delay; the network device 102 can stop or restart the UE101 corresponding timer while receiving the SR.

For example, in the implementation of step 702 and step 703, the network device 102 may perform synchronous maintenance of the timer with the UE 101.

If the first cell is a primary serving cell of the UE101 and the second cell is a secondary serving cell of the UE101, the embodiment of the present application provides another communication method, which includes the following steps:

step 801: the UE101 receives a first message from the network device 102; wherein, the UE101 maintains a timer, and when the timer expires, the UE101 performs BWP handover; in an implementation, the first message may be a broadcast message sent by the network device 102 or a paging message sent by the network device 102; the broadcast message and/or the paging message may include downlink scheduling information DCI;

step 802: the UE101 sends a response message of the first message to the network equipment 102; in an implementation, the response message of the first message may be a scheduling request SR with a special flag for indicating, explicitly or implicitly, that the UE 102 has received the first message;

step 803: when the UE101 triggers a response message of the first message and/or the UE101 sends the response message of the first message, the UE101 stops or restarts the self-maintained timer; in implementation, the UE101 may trigger the timing stop or the timing restart of the timer while sending or triggering the sending of the response message corresponding to the first message; if the first message is received by the UE101 on the first BWP, the UE101 may stop or restart the timer corresponding to the first BWP, where the first BWP is the BWP governed by the first cell; if the first message is received by the UE101 on the second BWP, the UE101 may stop or restart the timer corresponding to the first BWP and/or the timer corresponding to the second BWP, where the second BWP is the BWP administered by the second cell;

step 804: when the network device 102 receives a response message of the first message sent by the UE101, the network device 102 stops or restarts a timer corresponding to the UE101 and maintained by the network device 102, and considers that the UE101 does not perform BWP handover before the timer expires; in an implementation, the network device 102 may stop or restart a partial bandwidth timer maintained by the network device 102 and corresponding to the first BWP corresponding to the UE 101; and/or network device 102 may stop or restart a partial bandwidth timer maintained by network device 102 corresponding to the second BWP;

step 805: the network device 102 sends a feedback message to the UE101 for indicating that the response message has been received;

step 806: the UE101 receives the feedback message, and then ends the process.

By adopting the method, after receiving the broadcast message or the paging message sent by the network device 102, the UE101 sends the response message of the first message to the network device 102, and when the response message is triggered or sent, the UE101 stops or restarts the timer, so that the timer reaches the expiration state later to delay the BWP switching of the UE101, therefore, compared with the prior art, the UE101 can maintain the currently activated BWP with lower transmission delay, thereby realizing the reduction of transmission delay; the network device 102 may stop or restart the timer corresponding to the UE101 maintained by itself while receiving the response message. Illustratively, in the implementation of step 802 and step 803, the network device 102 may perform synchronous maintenance of the timer with the UE 101.

Based on the same inventive concept, an embodiment of the present application further provides a UE, which may have a structure as shown in fig. 9 and has a behavior function of the UE101 in the foregoing method embodiment. As shown in fig. 9, the UE900 may include a processing module 901 and a transceiver module 902. In implementation, the network device 1000 may further have a storage module 1003, and the storage module 1003 may be coupled with the processing module 1001 for storing programs and instructions required by the processing module 1001 to execute functions.

Based on the communication method shown in fig. 5, the processing module 901 in the UE900 shown in fig. 9 can be used for executing the steps shown in S102 on the UE900, and the transceiving module 902 can be used for executing the steps shown in S101 on the UE 900.

In one possible design, the first condition referred to in S102 includes at least one of the following conditions:

the UE900 triggers the SR; alternatively, the first and second electrodes may be,

the transceiving module 902 transmits the SR.

In one possible design, when a first condition is satisfied, the processing module 901 is configured to stop or restart the timer when the first condition is satisfied, and includes:

the processing module 901 is configured to stop or restart the timer when the SR is triggered; alternatively, the first and second electrodes may be,

the processing module 901 is configured to stop or restart the timer after triggering the SR; alternatively, the first and second electrodes may be,

the processing module 901 is configured to stop or restart the timer when sending the SR to the network device; alternatively, the first and second electrodes may be,

the processing module 901 is configured to stop or restart the timer after sending the SR to the network device.

In one possible design, the transceiver module 902 is configured to transmit a scheduling request SR to a network device, and includes:

the transceiver module 902 is configured to transmit the SR one or more times within the first duration.

In one possible design, the processing module 901 is further configured to determine to send uplink data to the network device.

In one possible design, the first cell covered by the network device is a primary serving cell of the UE 900;

the processing module 901 is configured to stop or restart the timer, and includes:

the processing module 901 is configured to stop or restart a timer corresponding to a first BWP, where the first BWP is a BWP governed by the first cell.

In one possible design, the first cell covered by the network device is a primary serving cell of the UE900, and the second cell covered by the network device is a secondary serving cell of the UE 900;

the processing module 901 is configured to stop the timer, and includes:

the processing module 901 is configured to stop a timer corresponding to a first BWP and/or a timer corresponding to a second BWP, where the first BWP is the BWP governed by the first cell, and the second BWP is the BWP governed by the second cell;

the processing module 901 is configured to restart the timer, and includes:

the processing module 901 is configured to restart the timer corresponding to the first BWP and/or the timer corresponding to the second BWP.

In one possible design, the transceiver module 902 is further configured to,

receiving the uplink grant information on at least one downlink BWP on a first cell; and/or

Receiving the uplink grant information on at least one downlink BWP on a second cell.

Based on the communication method shown in fig. 6, the processing module 901 in the UE900 shown in fig. 9 may be configured to perform the steps shown in S202 at the UE900, and the transceiving module 902 may be configured to perform the steps shown in S201 at the UE 900.

In one possible design, the second condition involved in the step shown in S202 includes at least one of the following conditions:

the UE900 has triggered the response message; or

The transceiver module 902 transmits the response message.

In one possible design, the processing module 901 is configured to stop or restart the timer when a second condition is met, and includes at least one of the following:

the processing module 901 is configured to stop or restart the timer when the response message is triggered; alternatively, the first and second electrodes may be,

the processing module 901 is configured to stop or restart the timer after triggering the response message; alternatively, the first and second electrodes may be,

the processing module 901 is configured to stop or restart the timer when sending the response message to the network device; alternatively, the first and second electrodes may be,

the processing module 901 is configured to stop or restart the timer after sending the response message to the network device.

In one possible design, the transceiver module 902 is further configured to send the response message one or more times within a second duration after receiving the first message.

In one possible design, the response message may be used to indicate that the UE900 received the first message.

the processing module 901 is configured to stop the timer, and includes:

the processing module 901 is configured to stop a timer corresponding to a first BWP and/or a timer corresponding to a second BWP, where the first BWP is the BWP administered by the first cell, and the second BWP is the BWP administered by the second cell;

the processing module 901 is configured to restart the timer, and includes:

In addition, the UE101 according to the embodiment of the present application may also have a structure as shown in fig. 3, where the processor 301 in the UE101 shown in fig. 3 may be configured to implement the functions of the processing module 901, for example, the processor 301 may be configured to execute the steps shown in S102 and/or S202 by the UE101, and the transceiver 302 may be configured to implement the functions of the transceiver module 902, for example, the transceiver 302 may be configured to execute the steps shown in S101 and/or S201 by the UE 101.

Based on the same inventive concept, the present application further provides a network device, which may have a structure as shown in fig. 10 and has the behavior function of the network device 102 in the foregoing method embodiment. As shown in fig. 10, the network device 1000 may include a processing module 1001 and a transceiver module 1002. In implementation, the network device 1000 may further have a storage module 1003, and the storage module 1003 may be coupled with the processing module 1001 for storing programs and instructions required by the processing module 1001 to execute functions.

Based on the communication method shown in fig. 5, the processing module 1001 in the network device 1000 shown in fig. 10 may be configured to perform the steps shown as S103 in the network device 1000, and the transceiver module 1002 may be configured to receive the SR in the network device 1000.

In one possible design, the first cell covered by the network device is a primary serving cell of the UE;

the processing module 1001 is configured to stop or restart the timer, and includes:

the processing module 1001 is configured to stop or restart a timer corresponding to a first BWP, where the first BWP is a BWP governed by the first cell.

the processing module 1001 is configured to stop the timer, and includes:

the processing module 1001 is configured to stop a timer corresponding to a first BWP and/or a timer corresponding to a second BWP, where the first BWP is the BWP administered by the first cell, and the second BWP is the BWP administered by the second cell;

the processing module 1001 is configured to restart the timer, and includes:

the processing module 1001 is configured to restart the timer corresponding to the first BWP and/or the timer corresponding to the second BWP.

Based on the communication method shown in fig. 6, the processing module 901 in the network device 1000 shown in fig. 10 may be configured to execute the steps shown in S203 at the network device 1000, and the transceiving module 902 may be configured to receive the response message at the network device 1000.

the processing module 1001 is configured to stop the timer, and includes:

the processing module 1001 is configured to restart the timer, and includes:

the processing module 1001 is configured to restart a timer corresponding to the first BWP and/or a timer corresponding to the second BWP.

In one possible design, the transceiver module 1002 is configured to send a feedback message to the UE to indicate that the network device 1000 receives the response message.

In addition, the user equipment UE according to the embodiment of the present application may also have a structure that is included in the network device 102 as shown in fig. 4, where the processor 401 in the network device 102 as shown in fig. 4 may be configured to implement the functions that are included in the processing module 1001, for example, the processor 401 may be configured to execute the steps shown in S103 and/or S203 by the network device 102, and the transceiver 402 may be configured to implement the functions that are included in the transceiver module 1002, for example, the transceiver 402 may be configured to receive the response message by the network device 102.

The embodiment of the application also provides a communication device, which can be a UE or a circuit. The communications apparatus may be configured to perform the actions performed by the UE in the above-described method embodiments.

When the communication device is a UE, fig. 11 shows a simplified structural diagram of the UE. For ease of understanding and illustration, in fig. 11, the UE is exemplified by a handset. As shown in fig. 11, the UE includes a processor, a memory, radio frequency circuitry, an antenna, and input-output devices. The processor is mainly used for processing communication protocols and communication data, controlling the UE, executing software programs, processing data of the software programs, and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of UEs may not have input/output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the UE, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 11. In an actual UE product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit with transceiving function may be regarded as a transceiving unit of the UE, and the processor with processing function may be regarded as a processing unit of the UE. As shown in fig. 11, the UE includes a transceiving unit 1110 and a processing unit 1120. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Optionally, a device in the transceiver 1110 for implementing a receiving function may be regarded as a receiving unit, and a device in the transceiver 1110 for implementing a transmitting function may be regarded as a transmitting unit, that is, the transceiver 1110 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

It should be understood that the transceiver 1110 is configured to perform the transmitting operation and the receiving operation on the UE side in the above method embodiments, and the processing unit 1120 is configured to perform other operations besides the transceiving operation on the UE in the above method embodiments.

For example, in one implementation, the transceiver 1110 is configured to perform the UE-side transmission operation in step S101 in the communication method shown in fig. 5, and/or the transceiver 1110 is further configured to perform other transceiver steps in the UE-side in the embodiment of the present application. The processing unit 1120 is configured to execute step S102 in fig. 4, and/or the processing unit 1120 is further configured to execute other processing steps on the UE side in this embodiment.

For another example, in another implementation manner, the transceiver 1110 is configured to perform the transmission operation on the UE side in step S201 in fig. 6, and/or the transceiver 1120 is further configured to perform other transceiving steps on the UE side in this embodiment of the present application. The processing unit 1120 is configured to perform step S202 in fig. 6, and/or the processing unit 1120 is further configured to perform other processing steps on the UE side in the embodiment of the present application.

For another example, in another implementation manner, the transceiver 1110 is configured to perform the UE-side transmission operation in step 702 or the UE-side transmission operation in step 706 in fig. 7, and/or the transceiver 1110 is further configured to perform other transceiver steps on the UE side in this embodiment of the present application. Processing unit 1120 is configured to perform steps 701 and 703 in fig. 7, and/or processing unit 1120 is further configured to perform other processing steps on the UE side in this embodiment.

For another example, in another implementation manner, the transceiver 1110 is configured to perform the receiving operation at the UE side in steps 801 and 806 or the transmitting operation at the UE side in step 802 in fig. 8, and/or the transceiver 1110 is further configured to perform other transceiving steps at the UE side in this embodiment of the present application. Processing unit 1120 is configured to perform step 803 in fig. 8, and/or processing unit 1120 is further configured to perform other processing steps on the UE side in the embodiment of the present application.

When the communication device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.

When the communication device in this embodiment is a UE, reference may be made to the apparatus shown in fig. 12. As an example, the device may perform functions similar to processor 301 of FIG. 3. In fig. 12, the apparatus includes a processor 1210, a transmit data processor 1220, and a receive data processor 1230. The processing module 710 in the above embodiment may be the processor 1210 in fig. 12, and performs the corresponding functions. The transceiver module 720 in the above embodiments may be the transmit data processor 1220 and/or the receive data processor 1230 in fig. 12. Although fig. 12 shows a channel encoder and a channel decoder, it is understood that these blocks are not limitative and only illustrative to the present embodiment.

Fig. 13 shows another form of the present embodiment. The processing device 1300 includes modules such as a modulation subsystem, a central processing subsystem, and peripheral subsystems. The communication device in this embodiment may serve as a modulation subsystem therein. In particular, the modulation subsystem may include a processor 1303 and an interface 1304. The processor 1303 completes the functions of the processing module 710, and the interface 1304 completes the functions of the transceiver module 720. As another variation, the modulation subsystem includes a memory 1306, a processor 1303 and a program stored in the memory 1306 and executable on the processor, and the processor 1303, when executing the program, implements the method of the UE side in the above method embodiments. It should be noted that the memory 1306 may be non-volatile or volatile, and may be located inside the modulation subsystem or in the processing device 1300 as long as the memory 1306 can be connected to the processor 1303.

As another form of the present embodiment, there is provided a computer-readable storage medium having stored thereon instructions that, when executed, perform the method on the UE side in the above-described method embodiment.

As another form of the present embodiment, there is provided a computer program product containing instructions that, when executed, perform the method of the UE side in the above method embodiments.

It should be understood that the processor mentioned in the embodiments of the present invention may be a Central Processing Unit (CPU), and may also be other general purpose processors, Digital Signal Processors (DSP), Application Specific Integrated Circuits (ASIC), Field Programmable Gate Arrays (FPGA) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory referred to in this embodiment of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double data rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM).

It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the memory (memory module) is integrated in the processor.

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should also be understood that reference herein to first, second, third, fourth, and various numerical designations is made only for ease of description and should not be used to limit the scope of the present application.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While some possible embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the embodiments of the application and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method of communication, comprising:

a terminal device sends a scheduling request SR to a network device, wherein the SR is used for requesting uplink resources, the terminal device maintains a timer, and the terminal device executes the switching of a part of bandwidth BWP when the timer expires;

the terminal apparatus stops or restarts the timer when a first condition is satisfied, the first condition being related to the SR.

2. The method of claim 1, wherein the first condition comprises at least one of:

the terminal device triggers the SR; alternatively, the first and second electrodes may be,

the terminal device transmits the SR.

3. The method of claim 1, wherein the terminal device stops or restarts the timer when a first condition is satisfied, comprising at least one of:

the terminal device stops or restarts the timer when triggering the SR; alternatively, the first and second electrodes may be,

the terminal device stops or restarts the timer after triggering the SR; alternatively, the first and second electrodes may be,

the terminal device stops or restarts the timer when transmitting the SR to the network equipment; alternatively, the first and second electrodes may be,

and the terminal device stops or restarts the timer after sending the SR to the network equipment.

4. A method according to any of claims 1-3, wherein the terminal device sending a scheduling request, SR, to a network equipment, comprises:

and the terminal device sends the SR once or for multiple times within the first duration.

5. The method according to any of claims 1-4, wherein before the terminal device sends the scheduling request SR to the network equipment, further comprising:

and the terminal device determines to send uplink data to the network equipment.

6. The method according to any of claims 1-5, wherein the first cell covered by the network equipment is a primary serving cell of the terminal device;

the terminal device stopping or restarting the timer includes:

and the terminal device stops or restarts a timer corresponding to a first BWP, wherein the first BWP is the BWP administered by the first cell.

7. The method of any of claims 1-5, wherein the first cell covered by the network equipment is a primary serving cell of the terminal device, and the second cell covered by the network equipment is a secondary serving cell of the terminal device;

the terminal device stopping the timer includes:

the terminal device stops a timer corresponding to a first BWP and/or a timer corresponding to a second BWP, wherein the first BWP is the BWP administered by the first cell, and the second BWP is the BWP administered by the second cell;

the restarting, by the terminal device, the timer includes:

the terminal device restarts the timer corresponding to the first BWP and/or the timer corresponding to the second BWP.

8. The method of claim 7, wherein after the terminal device stops or restarts the timer, further comprising:

the terminal device receives uplink authorization information on at least one downlink BWP on a first cell, wherein the uplink authorization information is used for indicating uplink resources; and/or

The terminal device receives uplink grant information on at least one downlink BWP on the second cell.

9. A method for reducing transmission delay, comprising:

a network device receives a scheduling request SR sent by a terminal device, wherein the SR is used for requesting uplink resources, the network device maintains a timer corresponding to the terminal device, and the network device determines that the terminal device executes switching of a partial bandwidth BWP when the timer expires;

upon receiving the SR, the network device stops or restarts the timer.

10. The method of claim 9, wherein the first cell covered by the network equipment is a primary serving cell of the terminal apparatus;

the network device stopping or restarting the timer includes:

and the network equipment stops or restarts a timer corresponding to a first BWP, wherein the first BWP is the BWP administered by the first cell.

11. The method of claim 9, wherein the first cell covered by the network equipment is a primary serving cell of the terminal device, and the second cell covered by the network equipment is a secondary serving cell of the terminal device;

the network device stopping the timer, comprising:

the network device stops a timer corresponding to a first BWP and/or a timer corresponding to a second BWP, where the first BWP is the BWP administered by the first cell, and the second BWP is the BWP administered by the second cell;

the network device restarting the timer includes:

the network device restarts the timer corresponding to the first BWP and/or the timer corresponding to the second BWP.

12. A terminal device, comprising:

the terminal device maintains a timer, and executes the switching of the partial bandwidth BWP when the timer expires;

the processing module is configured to stop or restart the timer when a first condition is satisfied, where the first condition is related to the SR.

13. The terminal apparatus of claim 12, wherein the first condition comprises at least one of:

the transceiver module transmits the SR.

14. The terminal apparatus of claim 12, wherein the processing module is configured to stop or restart the timer when a first condition is satisfied, comprising:

the processing module is used for stopping or restarting the timer when the SR is triggered; alternatively, the first and second electrodes may be,

the processing module is used for stopping or restarting the timer after triggering the SR; alternatively, the first and second electrodes may be,

the processing module is configured to stop or restart the timer when the SR is sent to the network device; alternatively, the first and second electrodes may be,

the processing module is configured to stop or restart the timer after sending the SR to the network device.

15. The terminal apparatus according to any of claims 12-14, wherein the transceiver module is configured to transmit a scheduling request, SR, to a network device, and comprises:

the transceiver module is configured to transmit the SR one or more times within a first duration.

16. The terminal apparatus of any of claims 12-15, wherein the processing module is further configured to determine to send uplink data to the network device.

17. The terminal apparatus according to any of claims 12-16, wherein the first cell covered by the network device is a primary serving cell of the terminal apparatus;

the processing module is used for stopping or restarting the timer, and comprises:

the processing module is configured to stop or restart a timer corresponding to a first BWP, where the first BWP is a BWP governed by the first cell.

18. The terminal apparatus according to any of claims 12-16, wherein the first cell covered by the network device is a primary serving cell of the terminal apparatus, and the second cell covered by the network device is a secondary serving cell of the terminal apparatus;

the processing module is configured to stop the timer, and includes:

the processing module is configured to stop a timer corresponding to a first BWP and/or a timer corresponding to a second BWP, where the first BWP is the BWP administered by the first cell, and the second BWP is the BWP administered by the second cell;

the processing module is configured to restart the timer, and includes:

the processing module is configured to restart a timer corresponding to the first BWP and/or a timer corresponding to the second BWP.

19. The terminal apparatus of claim 18, wherein the transceiver module is further configured to,

receiving uplink authorization information on at least one downlink BWP (broadband access point) on a first cell, wherein the uplink authorization information is used for indicating uplink resources; and/or

20. A network device, comprising:

the receiving and sending module is configured to receive a scheduling request SR sent by a terminal device, where the SR is used to request an uplink resource, the network device maintains a timer corresponding to the terminal device, and the network device determines that the terminal device performs a handover of a partial bandwidth BWP when the timer expires;

the processing module is used for stopping or restarting the timer when the SR is received.

21. The network device of claim 20, wherein the first cell covered by the network device is a primary serving cell of the terminal apparatus;

22. The network device of claim 20, wherein a first cell covered by the network device is a primary serving cell of the terminal apparatus, and a second cell covered by the network device is a secondary serving cell of the terminal apparatus;

the processing module is configured to stop the timer, and includes:

the processing module is configured to restart the timer, and includes:

23. A communication apparatus comprising a memory, a processor and a program stored on the memory and executable on the processor, wherein the processor implements the communication method according to any one of claims 1 to 8 when executing the program.

24. A communication apparatus comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor implements the communication method according to any one of claims 9 to 11 when executing the program.