CN111869288B

CN111869288B - Method and device for starting timer and terminal

Info

Publication number: CN111869288B
Application number: CN201880091309.2A
Authority: CN
Inventors: 石聪; 杨宁
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-10-18
Filing date: 2018-10-26
Publication date: 2021-12-24
Anticipated expiration: 2038-10-26
Also published as: CN111869288A; WO2020077667A1

Abstract

The embodiment of the application provides a method, a device and a terminal for starting a timer, wherein the method comprises the following steps: the terminal receives a control signaling, and if the control signaling indicates that there is scheduling of data transmission and switches the first BWP to the second BWP, the terminal starts a first timer.

Description

Method and device for starting timer and terminal

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a method, a device and a terminal for starting a timer.

Background

Fifth generation (5G, 5) to reduce terminal power consumption and complexity^thGeneration) New Radio (NR) systems propose the concept of bandwidth Part (BWP), which is smaller than the system bandwidth.

The working bandwidth of the terminal may be switched from one BWP to another BWP with a switching delay. On the other hand, Media Access Control (MAC) protocols define timers for implementing different functions, and these timers may time out during BWP handover, and if the timer times out during BWP handover, the timer will fail, resulting in that the corresponding function cannot be implemented.

Disclosure of Invention

The embodiment of the application provides a method and a device for starting a timer and a terminal.

The method for starting the timer provided by the embodiment of the application comprises the following steps:

the terminal receives a control signaling, and if the control signaling indicates that there is scheduling of data transmission and switches the first BWP to the second BWP, the terminal starts a first timer.

The device for starting the timer provided by the embodiment of the application comprises:

a receiving unit, configured to receive a control signaling;

a starting unit, configured to start a first timer if the control signaling indicates that there is scheduling of data transmission and the first bandwidth part BWP is switched to the second BWP.

The terminal provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method for starting the timer.

The chip provided by the embodiment of the application is used for realizing the method for starting the timer.

Specifically, the chip includes: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes the method for starting the timer.

A computer-readable storage medium provided in an embodiment of the present application is used for storing a computer program, and the computer program enables a computer to execute the method for starting a timer.

The computer program product provided by the embodiment of the present application includes computer program instructions, which enable a computer to execute the method for starting the timer.

The computer program provided by the embodiment of the present application, when running on a computer, causes the computer to execute the method for starting the timer.

By the technical scheme, the switching time delay in the BWP switching process is considered, the first timer is started in the switching process, and the overtime moment of the first timer is ensured to be always after the BWP switching process is finished, so that the validity of the timer is ensured, and the corresponding function of the timer is realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

fig. 2 is a schematic flowchart of a method for starting a timer according to an embodiment of the present application;

fig. 3(a) is a schematic diagram of a first principle of starting a timer according to an embodiment of the present application;

fig. 3(b) is a schematic diagram of a start timer according to an embodiment of the present application;

fig. 3(c) is a schematic diagram of a third principle of starting a timer according to an embodiment of the present application;

fig. 3(d) is a schematic diagram of a start timer according to an embodiment of the present application;

fig. 3(e) is a schematic diagram of a start timer according to an embodiment of the present application;

fig. 3(f) is a schematic diagram six of a start timer provided in the embodiment of the present application;

fig. 4 is a schematic structural component diagram of an apparatus for starting a timer according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a chip of an embodiment of the present application;

fig. 7 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a 5G System.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or may be a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network-side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal 120 located within the coverage area of the network device 110. As used herein, "terminal" includes, but is not limited to, connection via a wireline, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a Digital cable, a direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., to a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal that is arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal can refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal in a 5G network, or a terminal in a future evolved PLMN, etc.

Optionally, a Device to Device (D2D) communication may be performed between the terminals 120.

Alternatively, the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.

Fig. 1 exemplarily shows one network device and two terminals, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminals within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal 120 having a communication function, and the network device 110 and the terminal 120 may be the specific devices described above and are not described again here; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing 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.

Fig. 2 is a schematic flowchart of a method for starting a timer according to an embodiment of the present application, and as shown in fig. 2, the method for starting the timer includes the following steps:

step 201: the terminal receives a control signaling, and starts a first timer if the control signaling indicates that there is scheduling of data transmission and switches the first bandwidth part BWP to the second BWP.

In the embodiment of the application, the terminal may be any device capable of communicating with a network, such as a mobile phone, a tablet computer, a vehicle-mounted terminal, a notebook computer, and a wearable device.

In this embodiment, the terminal is configured with at least two BWPs, namely a first BWP and a second BWP, respectively, and the terminal may use the first BWP as a working bandwidth and may use the second BWP as a working bandwidth, where the first BWP and the second BWP have at least different bandwidth sizes and/or different bandwidth positions and/or different Subcarrier spacings (SCS).

Assuming that the current working bandwidth of the terminal is the first BWP, the network side may send an indication message to the terminal to instruct the terminal to switch the first BWP to the second BWP. In a specific implementation, the indication Information may be implemented by a Control signaling carried in a Downlink Control Channel (PDCCH), and further, the Control signaling is Downlink Control Information (DCI).

In the embodiment of the present application, the MAC protocol defines a first timer, and a specific implementation of the first timer is described below.

The implementation mode is as follows: the first timer is used for the terminal to monitor the PDCCH during the operation period of the first timer.

For example: in Discontinuous Reception (DRX), the first timer is DRX-inactivity timer, during which a MAC entity of the terminal is in DRX active time, and monitors a PDCCH in the DRX active time, where the PDCCH monitored by the terminal is scrambled by some Radio Network Temporary Identifier (RNTI). It should be noted that the DRX inactivity timer is triggered by some event, such as receiving a PDCCH (which schedules new data transmission), and then is started or restarted.

One DRX cycle includes two periods, one is a DRX active time and the other is a DRX inactive time. The period of time that the DRX-inactivity timer is operated belongs to the DRX activation time.

The implementation mode two is as follows: the first timer is used for the terminal not transmitting first data (the first data is newly transmitted data) on uplink resources corresponding to a first Hybrid Automatic Repeat reQuest (HARQ) process during the operation period of the first timer, the first HARQ process has a corresponding relation with the first timer, the first data is data except second data, and the second data is data occupying the first HARQ process.

Here, the uplink resource corresponding to the first HARQ process is an uplink configuration resource, and the uplink resource is configured semi-statically, and includes the following two types:

type1 configured grant: configured by RRC and activated after configuration;

type2 configured grant: configured by RRC, but DCI signaling activation is required after configuration, and use is started after activation.

For example: in HARQ, the first timer is a configurable grant timer, where the configurable grant timer is configured for a certain HARQ process (referred to as a first HARQ process in this embodiment), and the HARQ process has a corresponding uplink resource (referred to as a configurable grant), and during the operation of the configurable grant timer, the configurable grant is limited to be occupied by the HARQ process, and the terminal does not newly transmit data (the newly transmitted data may be uplink data and/or downlink data) on the configurable grant corresponding to the HARQ process.

In this embodiment, the network side may send an indication information to the terminal to indicate that there is scheduling of data transmission, and further, the indication information is used to indicate that there is scheduling of newly transmitted data (the newly transmitted data may be uplink data and/or downlink data). In specific implementation, the indication information may be implemented by a control signaling carried in the PDCCH, and further, the control signaling is DCI.

In an embodiment, the control signaling indicating scheduling of data transmission and the control signaling indicating switching the first BWP to the second BWP are the same control signaling, for example: and the network side sends a PDCCH to the terminal, and the DCI in the PDCCH indicates that the scheduling of the newly transmitted data exists and also indicates to switch from the first BWP to the second BWP, so that the terminal realizes the transmission of new data on the second BWP after switching from the first BWP to the second BWP.

In another embodiment, the control signaling indicating the scheduling of data transmission is different from the control signaling indicating the switching of the first BWP to the second BWP. For example: and the network side sends a first DCI and a second DCI to the terminal, wherein the first DCI indicates that the scheduling of the newly transmitted data exists, and the second DCI indicates that the first BWP is switched to the second BWP.

In this embodiment of the present application, if the control signaling received by the terminal indicates both scheduling of data transmission and switching of the first BWP to the second BWP, the terminal starts the first timer, so that the timeout time of the first timer is after successful BWP switching, thereby implementing the corresponding function of the first timer. It should be noted that the terminal starts to perform the handover from the first BWP to the second BWP at the time of receiving the control signaling. Further, the manner of the terminal starting the first timer during the BWP handover may have the following ways:

the first method is as follows: and the terminal starts the first timer on the first time domain symbol after the control signaling is received. Wherein the duration of the first timer is a first duration of a network configuration.

Further, when the first timer times out, if the terminal does not complete the handover from the first BWP to the second BWP, the terminal restarts the first timer. Wherein the duration of the restarted first timer is configured by a network; or the duration of the restarted first timer is the switching delay from the first BWP to the second BWP; or the duration of the restarted first timer is the specified minimum switching delay of the BWP.

Wherein the prescribed BWP minimum handoff delay is determined by capabilities of the terminal.

For example: the terminal receives a PDCCH at time T1, where DCI in the PDCCH is used to indicate scheduling of newly transmitted data and indicate switching from BWP #1 to BWP #2, the terminal starts a BWP handover procedure from time T1, completes the BWP handover procedure at time T2, where the BWP handover time is delayed to be T2-T1, the terminal starts a first timer on a first Orthogonal Frequency Division Multiplexing (OFDM) symbol after time T1, the duration of the first timer is configured as T1 by the network, and the first timer runs according to T1, where one is located in the BWP handover procedure, as shown in fig. 3 (b); another method is to refer to fig. 3(a) after BWP switching is completed. For the case of fig. 3(b), when the first timer times out, the terminal restarts the first timer, the duration of the restarted first timer is T2(T2 may be equal to or different from T1), T2 may be configured by the network, or equal to the BWP handover delay, or equal to the BWP minimum handover delay specified by 38.133, so that the timeout time of the restarted first timer is after the BWP handover ends. It should be noted that, if the timeout time of the first timer is still within the handover delay after the first timer is restarted, the first timer is continuously restarted until the timeout time of the first timer is after successful handover.

Further, when the first timer times out, if the terminal does not complete the handover from the first BWP to the second BWP, then:

1) the terminal is switched from the first BWP to a default BWP; or, 2) the terminal switches from the first BWP to the second BWP, and restarts the first timer on the second BWP.

Referring to fig. 3(e), the terminal starts the first timer on a first time domain symbol after the PDCCH is received, and the first timer times out in a handover delay from the first BWP to the second BWP, where the PDCCH is used to indicate the second BWP to be handed over. The terminal may select 1): switch to initial/default BWP; or, 2) switching to BWP #2 indicated by the PDCCH, and then restarting the first timer on the BWP # 2. It should be noted that the first timer may be bwp-inactivity timer.

Referring to fig. 3(f), the terminal starts the first timer on a first time domain symbol after the PDCCH is received, and the first timer times out in a handover delay from the first BWP to the second BWP, where the PDCCH is used to schedule an RRC message, and the RRC message is used to indicate the second BWP to be handed over. The terminal may select 1): switch to initial/default BWP; or, 2) switching to BWP #2 indicated by the RRC message, and then restarting the first timer on the BWP # 2. It should be noted that the first timer may be bwp-inactivity timer.

The second method comprises the following steps: and the terminal starts the first timer on the first time domain symbol after the control signaling is received. Wherein the duration of the first timer is determined based on a first duration configured by the network and a second duration. Specifically, the duration of the first timer is the first duration plus the second duration.

Wherein the second duration is configured by a network; or the second duration is a handover delay from the first BWP to the second BWP; or, the second duration is a specified BWP minimum handover delay.

For example: the terminal receives the PDCCH at time T1, the DCI in the PDCCH is used to indicate the scheduling of newly transmitted data and indicate switching from BWP #1 to BWP #2, the terminal starts to perform the BWP handover procedure at time T1, completes the BWP handover procedure at time T2, the BWP handover delay is T2-T1, the terminal starts a first timer at the first OFDM symbol after time T1, and the duration of the first timer is determined by T1 configured by the network and another delay duration T3, for example: the duration of the first timer is equal to T1+ T3, see fig. 3(c), where T3 may be configured by the network, or equal to the BWP handoff delay, or equal to the BWP minimum handoff delay specified by 38.133, such that the timeout time of the first timer is after the end of the BWP handoff.

In the above-described scheme, the BWP minimum handoff delay defined by 38.133 may be determined by the capability of the terminal, may be the maximum value, or may be determined by the network and the terminal according to the capability.

The third method comprises the following steps: the terminal starts the first timer at a first time after the control signaling is received, wherein the first time has a first time offset from the receiving time of the control signaling. Wherein the duration of the first timer is a first duration of a network configuration.

Specifically, the first time offset is a handover latency of the first BWP to the second BWP; or, the first time offset is a specified BWP minimum handover delay. Wherein the first time offset is configured by a network; alternatively, the first time offset is agreed upon by a protocol.

For example: the terminal receives the PDCCH at time t1, where the DCI in the PDCCH is used to indicate scheduling of newly transmitted data and indicate switching from BWP #1 to BWP #2, the terminal starts to perform a BWP handover procedure from time t1, completes the BWP handover procedure at time t2, where the BWP handover delay is t2-t1, and after the terminal extends a time period t (offset) after time t1, the terminal starts a first timer, where, referring to fig. 3(d), t (offset) is equal to the BWP handover delay or is equal to the BWP minimum handover delay specified by 38.133, so that the timeout time of the first timer is after the BWP handover is completed.

In an embodiment of the present application, the method further includes: the terminal starts a second timer if the control signaling does not indicate to switch the first BWP to the second BWP.

In a specific implementation, the terminal starts the second timer on a first time domain symbol after the control signaling is received. In this embodiment, the second timer and the first timer may be the same timer. The duration of the second timer may be a network configured duration.

It should be noted that the above technical solution of the embodiment of the present application is implemented in the MAC layer of the terminal, and is executed by the MAC entity of the terminal.

Fig. 4 is a schematic structural component diagram of an apparatus for starting a timer according to an embodiment of the present application, and as shown in fig. 4, the apparatus includes:

a receiving unit 401, configured to receive a control signaling;

a starting unit 402, configured to start a first timer if the control signaling indicates that there is a schedule for data transmission and the first BWP is switched to the second BWP.

In an embodiment, the starting unit 402 is configured to start the first timer on a first time domain symbol after the control signaling is received.

In one embodiment, the duration of the first timer is a first duration of a network configuration.

In an embodiment, the starting unit 402 is further configured to restart the first timer if the terminal does not complete the handover from the first BWP to the second BWP when the first timer expires.

In one embodiment, the duration of the restarted first timer is configured by a network; or the duration of the restarted first timer is the switching delay from the first BWP to the second BWP; or the duration of the restarted first timer is the specified minimum switching delay of the BWP.

In an embodiment, when the first timer expires, if the terminal does not complete the handover from the first BWP to the second BWP, then: the terminal is switched from the first BWP to a default BWP; or, the terminal switches from the first BWP to the second BWP, and restarts the first timer on the second BWP.

Further, the starting unit starts the first timer on a first time domain symbol after the PDCCH is received, where the first timer times out in a handover delay from the first BWP to the second BWP, and the PDCCH is used to indicate the second BWP to be handed over.

Further, the starting unit starts the first timer on a first time domain symbol after the PDCCH is received, and the first timer times out in a handover delay from the first BWP to the second BWP, where the PDCCH is used to schedule a radio resource control RRC message, and the RRC message is used to indicate the second BWP to be handed over.

In one embodiment, the duration of the first timer is determined based on a first duration of a network configuration and a second duration.

In one embodiment, the determining the duration of the first timer based on the first duration of the network configuration and the second duration includes:

the duration of the first timer is the first duration plus the second duration.

In one embodiment, the second duration is configured by a network; or the second duration is a handover delay from the first BWP to the second BWP; or, the second duration is a specified BWP minimum handover delay.

In an embodiment, the prescribed BWP minimum handover delay is determined by the capabilities of the terminal.

In an embodiment, the starting unit 402 is configured to start the first timer at a first time after the control signaling is received, where the first time and the receiving time of the control signaling have a first time offset.

In an embodiment, the first time offset is configured by a network; alternatively, the first time offset is agreed upon by a protocol.

In an embodiment, the first time offset is a handover latency of the first BWP to the second BWP; or, the first time offset is a specified BWP minimum handover delay.

In an embodiment, the first timer is configured to monitor a downlink control channel PDCCH by the terminal during an operation period of the first timer.

In an embodiment, the first timer is configured to not transmit first data on an uplink resource corresponding to a first HARQ process during an operation period of the first timer, where the first HARQ process has a corresponding relationship with the first timer, the first data is data other than second data, and the second data is data occupying the first HARQ process.

In an embodiment, the starting unit 402 is further configured to start a second timer if the control signaling does not indicate to switch the first BWP to the second BWP.

In an embodiment, the starting unit 402 is configured to start the second timer on a first time domain symbol after the control signaling is received.

In one embodiment, the second timer and the first timer are the same timer.

In one embodiment, the control signaling indicating that there is scheduling for data transmission and the control signaling indicating to switch the first BWP to the second BWP are the same control signaling; alternatively, the control signaling indicating the scheduling of the data transmission and the control signaling indicating the switching of the first BWP to the second BWP are different control signaling.

It should be understood by those skilled in the art that the above description of the apparatus for starting a timer according to the embodiments of the present application can be understood by referring to the description of the method for starting a timer according to the embodiments of the present application.

Fig. 5 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. The communication device may be a terminal, and the communication device 600 shown in fig. 5 includes a processor 610, and the processor 610 may call and execute a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 5, the communication device 600 may further include a memory 620. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 620 may be a separate device from the processor 610, or may be integrated into the processor 610.

Optionally, as shown in fig. 5, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 630 may include a transmitter and a receiver, among others. The transceiver 630 may further include one or more antennas.

Optionally, the communication device 600 may specifically be a network device in the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the communication device 600 may specifically be a mobile terminal/terminal according to this embodiment, and the communication device 600 may implement a corresponding process implemented by the mobile terminal/terminal in each method according to this embodiment, which is not described herein again for brevity.

Fig. 6 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 700 shown in fig. 6 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 6, the chip 700 may further include a memory 720. From the memory 720, the processor 710 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 720 may be a separate device from the processor 710, or may be integrated into the processor 710.

Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the mobile terminal/terminal in the embodiment of the present application, and the chip may implement a corresponding process implemented by the mobile terminal/terminal in each method in the embodiment of the present application, and for brevity, no further description is given here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 7 is a schematic block diagram of a communication system 900 provided in an embodiment of the present application. As shown in fig. 7, the communication system 900 includes a terminal 910 and a network device 920.

The terminal 910 may be configured to implement the corresponding function implemented by the terminal in the foregoing method, and the network device 920 may be configured to implement the corresponding function implemented by the network device in the foregoing method, which is not described herein again for brevity.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can 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 the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of starting a timer, the method comprising:

a terminal receives control signaling, and if the control signaling indicates that there is scheduling of data transmission and switches a first bandwidth part BWP to a second BWP, the terminal starts a first timer in the process of switching from the first BWP to the second BWP; the terminal starts the first timer according to one of the following modes:

the first method is as follows: the terminal starts the first timer on a first time domain symbol after the control signaling is received, wherein the duration of the first timer is a first duration configured by a network;

the second method comprises the following steps: the terminal starts the first timer on a first time domain symbol after the control signaling is received, wherein the duration of the first timer is determined based on a first duration configured by a network and a second duration, and the duration of the first timer is the sum of the first duration and the second duration;

the third method comprises the following steps: the terminal starts the first timer at a first time after the control signaling is received, wherein the first time and the receiving time of the control signaling have a first time offset, and the duration of the first timer is a first duration configured by a network.

2. The method of claim 1, wherein the method further comprises:

and when the first timer is overtime, if the terminal does not complete the switching from the first BWP to the second BWP, the terminal restarts the first timer.

3. The method of claim 2, wherein,

the duration of the restarted first timer is configured by a network; alternatively, the first and second electrodes may be,

the duration of the restarted first timer is the switching time delay from the first BWP to the second BWP; alternatively, the first and second electrodes may be,

the duration of the restarted first timer is the specified BWP minimum switching delay.

4. The method of claim 1, wherein the method further comprises:

when the first timer is overtime, if the terminal does not complete the handover from the first BWP to the second BWP, then:

the terminal is switched from the first BWP to a default BWP; alternatively, the first and second electrodes may be,

the terminal switches from the first BWP to the second BWP and restarts the first timer on the second BWP.

5. The method of claim 4, wherein the terminal starts the first timer on a first time domain symbol after a Physical Downlink Control Channel (PDCCH) is received, and the first timer times out in a handover delay from the first BWP to the second BWP, wherein the PDCCH is used for indicating the second BWP to be handed over.

6. The method of claim 4, wherein the terminal starts the first timer on a first time domain symbol after the PDCCH is received, and the first timer times out in a handover delay from the first BWP to the second BWP, wherein the PDCCH is used for scheduling a Radio Resource Control (RRC) message indicating the second BWP to be handed over.

7. The method of claim 1, wherein,

the second duration is configured by a network; alternatively, the first and second electrodes may be,

the second duration is a handover latency from the first BWP to the second BWP; alternatively, the first and second electrodes may be,

the second duration is the specified minimum BWP handoff delay.

8. The method according to claim 3 or 7, wherein the prescribed BWP minimum handover latency is determined by the capabilities of the terminal.

9. The method of claim 1, wherein,

the first time offset is configured by a network; alternatively, the first and second electrodes may be,

the first time offset is agreed upon by a protocol.

10. The method of claim 1, wherein,

the first time offset is a handover latency of the first BWP to the second BWP; alternatively, the first and second electrodes may be,

the first time offset is a prescribed BWP minimum handover delay.

11. The method according to any one of claims 1 to 7, wherein the first timer is used for the terminal to monitor a downlink control channel (PDCCH) during operation of the first timer.

12. The method according to any one of claims 1 to 7, wherein the first timer is used for the terminal not to transmit first data on uplink resources corresponding to a first hybrid automatic repeat request (HARQ) process during operation of the first timer, the first HARQ process has a corresponding relationship with the first timer, the first data is data other than second data, and the second data is data occupying the first HARQ process.

13. The method of any of claims 1 to 7, wherein the method further comprises:

the terminal starts a second timer if the control signaling does not indicate to switch the first BWP to the second BWP.

14. The method of claim 13, wherein the terminal starting a second timer comprises:

the terminal starts the second timer on the first time domain symbol after the control signaling is received.

15. The method of claim 13, wherein the second timer and the first timer are the same timer.

16. The method of any one of claims 1 to 7,

the control signaling for indicating the scheduling of data transmission and the control signaling for indicating the switching of the first BWP to the second BWP are the same control signaling; alternatively, the first and second electrodes may be,

the control signaling indicating scheduling with data transmission is different from the control signaling indicating switching the first BWP to the second BWP.

17. An apparatus to start a timer, the apparatus comprising:

a receiving unit, configured to receive a control signaling;

a starting unit, configured to start a first timer in a process that a terminal switches from a first BWP to a second BWP if the control signaling indicates that there is a schedule for data transmission and the first BWP is switched to the second BWP; wherein the starting unit starts the first timer according to one of the following modes:

the first method is as follows: starting the first timer on a first time domain symbol after the control signaling is received, wherein the duration of the first timer is a first duration configured by a network;

the second method comprises the following steps: starting the first timer on a first time domain symbol after the control signaling is received, wherein the duration of the first timer is determined based on a first duration configured by a network and a second duration, and the duration of the first timer is the sum of the first duration and the second duration;

the third method comprises the following steps: starting the first timer at a first time after the control signaling is received, wherein the first time has a first time offset from the receiving time of the control signaling, and the duration of the first timer is a first duration configured by a network.

18. The apparatus of claim 17, wherein the starting unit is further configured to restart the first timer if a terminal does not complete the handover from the first BWP to the second BWP when the first timer times out.

19. The apparatus of claim 18, wherein,

20. The apparatus of claim 17, wherein, when the first timer times out, if a terminal does not complete a handover from the first BWP to the second BWP:

21. The apparatus of claim 20, wherein the starting unit starts the first timer on a first time-domain symbol after the PDCCH is received, the first timer times out in a handover delay from the first BWP to the second BWP, wherein the PDCCH indicates the second BWP to be handed over.

22. The apparatus of claim 20, wherein the starting unit starts the first timer on a first time domain symbol after the PDCCH is received, and the first timer times out in a handover delay from the first BWP to the second BWP, wherein the PDCCH is used for scheduling a Radio Resource Control (RRC) message indicating the second BWP to be handed over.

23. The apparatus of claim 17, wherein,

the second duration is the specified minimum BWP handoff delay.

24. The apparatus according to claim 19 or 23, wherein the prescribed BWP minimum handover latency is determined by capabilities of the terminal.

25. The apparatus of claim 17, wherein,

the first time offset is agreed upon by a protocol.

26. The apparatus of claim 17, wherein,

the first time offset is a prescribed BWP minimum handover delay.

27. The apparatus according to any one of claims 17 to 23, wherein the first timer is configured to monitor a downlink control channel PDCCH by the terminal during operation of the first timer.

28. The apparatus according to any one of claims 17 to 23, wherein the first timer is configured to transmit, by the terminal, first data on uplink resources corresponding to a first HARQ process during operation of the first timer, where the first HARQ process has a corresponding relationship with the first timer, the first data is data other than second data, and the second data is data occupying the first HARQ process.

29. The apparatus according to any of claims 17 to 23, wherein the starting unit is further configured to start a second timer if the control signaling does not indicate to switch the first BWP to the second BWP.

30. The apparatus of claim 29, wherein the means for starting starts the second timer on a first time domain symbol after the control signaling is received.

31. The apparatus of claim 29, wherein the second timer and the first timer are the same timer.

32. The apparatus of any one of claims 17 to 23,

33. A terminal, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 16.

34. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 16.

35. A computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 16.