WO2020243933A1

WO2020243933A1 - Working bandwidth switching method, user equipment, and network device

Info

Publication number: WO2020243933A1
Application number: PCT/CN2019/090210
Authority: WO
Inventors: 石聪; 徐婧
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-12-10
Also published as: CN112997444B; CN112997444A

Abstract

The present application relates to a working bandwidth switching method, user equipment, and a network device, comprising: determining a target working bandwidth part (BWP) and a BWP-inactivity timer; and switching to the target BWP and starting the BWP-inactivity timer. By means of the specific implementation provided in the present application, the BWP-inactivity timer may also be dynamically adjusted when the user equipment performs BWP switching, so that the user equipment switches to a small BWP as soon as possible without sending and receiving data again, thereby further saving energy consumption of the user equipment.

Description

Working bandwidth switching method, user equipment and network equipment

【Technical Field】

This application relates to the field of communication technology, and in particular to a working bandwidth switching method in a communication process.

【Background technique】

In the New Radio (NR, New Radio) system of the fifth generation (5G, 5 Generation) mobile communication system, whenever a user equipment (UE, User Equipment) or terminal is on the currently activated working bandwidth (BWP, Bandwidth Part) When receiving the BWP switching information of the Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel), the working bandwidth inactivity timer (bwp-InactivityTimer, Bandwidth Part Inactivity Timer) must be restarted.

In the existing BWP configuration, since the working bandwidth inactivation timer is semi-statically configured by RRC, it cannot be dynamically adjusted according to the actual demand of working bandwidth service scheduling, which is not conducive to user equipment or terminal power saving.

[Content of the invention]

The technical problem to be solved by this application is to provide a working bandwidth switching method, user equipment and network equipment, which can dynamically adjust the BWP inactivity timer when the user equipment performs BWP switching.

This application provides the following technical solutions:

A working bandwidth switching method, which is used for user equipment, includes:

Determine the target BWP and BWP inactive timer;

Switch to the target BWP and start the BWP inactivity timer.

A user equipment, which includes:

The confirmation module is used to determine the target BWP and the BWP inactivation timer when the instruction information to start the BWP inactivity timer is received;

The switching module is used to switch the current BWP to the target BWP;

The start module is used to start the BWP inactive timer.

A user equipment includes: a processor and a memory, characterized in that: a working bandwidth switching program stored in the memory and running on the processor; when the processor executes the working bandwidth switching program, any one is used for the user The working bandwidth switching method of the device.

A computer-readable storage medium, wherein a working bandwidth switching program is stored on the computer-readable storage medium, and when the working bandwidth switching program is executed by a processor, any working bandwidth switching method for user equipment is implemented.

A working bandwidth switching method, which is applied to a network device, includes: sending switching information of a working bandwidth BWP to a user equipment, the switching information includes an identifier of a target BWP to be switched.

A network device includes: sending indication information of whether to start a working bandwidth BWP inactivation timer and BWP switching information to a user equipment, the switching information includes a target BWP identifier.

A network device includes: a processor and a memory, characterized in that: a working bandwidth switching program stored in the memory and running on the processor; when the processor executes the working bandwidth switching program, any one is used for the network The working bandwidth switching method of the device.

A computer-readable storage medium, wherein a working bandwidth switching program is stored on the computer-readable storage medium, and when the working bandwidth switching program is executed by a processor, any working bandwidth switching method for network equipment is implemented.

The beneficial effect of this application is that the specific implementation provided by this application first determines the target working bandwidth BWP and the BWP inactivation timer to be switched, and starts the BWP inactivation timer at the same time when switching to the target working bandwidth BWP. Therefore, The BWP inactive timer can be dynamically adjusted when the user equipment performs BWP switching, so that the user equipment can switch to a BWP with a smaller bandwidth as soon as possible without the need to send and receive data, thereby further saving the energy consumption of the user equipment .

【Explanation of drawings】

FIG. 1 is a flowchart of a working bandwidth switching method provided in the first embodiment of this application.

FIG. 2 is a schematic diagram of a module structure of a user equipment 200 provided in the second embodiment of this application.

FIG. 3 is a schematic diagram of the hardware structure of a user equipment provided in the third embodiment of this application.

FIG. 4 is a flowchart of a working bandwidth switching method provided by Embodiment 4 of this application.

FIG. 5 is a schematic diagram of a module structure of a network device 500 provided in the fifth embodiment of this application.

FIG. 6 is a schematic diagram of a hardware structure of a network device provided by Embodiment 6 of this application.

FIG. 7A is a flowchart of a working bandwidth switching process provided in the seventh embodiment of this application.

FIG. 7B is a schematic diagram of a working bandwidth switching process provided in the seventh embodiment of this application.

FIG. 7C is a time relationship diagram between the WUS cycle and the DRX cycle in the working bandwidth switching process provided by the seventh embodiment of this application.

FIG. 8A is a flowchart of a working bandwidth switching process provided by Embodiment 8 of this application.

FIG. 8B is a schematic diagram of a working bandwidth switching process provided by Embodiment 8 of this application.

FIG. 9 is a flowchart of a working bandwidth switching process provided in the ninth embodiment of this application.

【Detailed ways】

In order to make the purpose, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and not used to limit the application. However, this application can be implemented in a variety of different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. The terms used in the specification of the application herein are only for the purpose of describing specific embodiments, and are not intended to limit the application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

The specific implementation manners of this application disclose a working bandwidth switching method, user equipment, and network equipment. Among them, the network device generates and delivers a working bandwidth BWP switching message to the user equipment, and the user equipment determines the target working bandwidth BWP and BWP inactivation timer to be switched according to the switching message, and according to the target working bandwidth BWP and BWP inactivation timer , Switch to the target working bandwidth BWP, and start the BWP inactivity timer.

The specific implementation of this application sends different types of BWP handover messages on the network equipment to instruct the user equipment to switch to a new BWP, and how the user equipment dynamically adjusts the BWP inactivation timer when performing BWP handover, thereby realizing energy saving of the user equipment Electricity.

The following is the corresponding table of the abbreviations of the key techniques and their Chinese and English names in this application:

In order to provide a greater data transmission rate, 5G NR further increases the system bandwidth on the basis of 4G. For frequency bands below 6GHz, the maximum bandwidth supported by a single carrier is 100MHz; for frequency bands above 6GHz, the maximum bandwidth supported by a single carrier is 400MHz . For a large carrier bandwidth, such as 100HMz, the bandwidth that the user equipment needs to use is often very limited. If the user equipment always performs detection and measurement on the entire bandwidth, it will bring great challenges to the power consumption of the user equipment, which is not conducive to the terminal. Power saving. Therefore, the concept of BWP is introduced in 5G NR, that is, a part of continuous bandwidth is divided into the entire large-bandwidth carrier for user equipment to send and receive data. The user equipment only needs to perform related operations within this part of the bandwidth of the network configuration, thereby achieving the effect of terminal energy saving. Based on the 5G NR Rel-15 standard, network equipment configures one or more BWPs for the user equipment in each serving cell. At each moment, the user equipment can only have one active BWP on the serving cell, and the user equipment can only Data is sent and received on the activated BWP. Considering factors such as the diversity of user equipment services and the differences of different services, the user equipment needs to adjust the BWP. For example, when a terminal has a large business volume and wants to obtain a high-rate service, a BWP with a large bandwidth needs to be used for data transmission for this terminal. When the terminal service volume is small, a small bandwidth BWP can be used for data transmission for this terminal. The BWP activated by the terminal on this serving cell can be changed by means of BWP handover.

The following specific implementation manners of the present application will elaborate on the process of switching the current working bandwidth when the user equipment receives different types of BWP switching messages sent by the network device. Therefore, when the user equipment no longer needs a larger BWP to send and receive data services, it can switch to a BWP with a smaller bandwidth as soon as possible, thereby further saving energy consumption of the user equipment.

Specific embodiment one

The "plurality" mentioned in all the specific embodiments of this application is at least two.

Please refer to FIG. 1, the first specific implementation manner of the present application provides a working bandwidth switching method. This method is applied to user equipment. The method includes:

Step 110: Determine the target BWP and BWP inactivation timer;

Optionally, before the step of determining the target BWP and BWP inactivity timer, the method further includes:

Receive indication information for indicating whether to start the BWP inactive timer;

When the instruction information determines to start the BWP inactivation timer, execute the step of determining the target BWP and the BWP inactivation timer, and switch to the target BWP, and start the BWP inactivation timer A step of;

When the indication information determines not to start the BWP inactivation timer, the method further includes:

Determine the target BWP;

Switch to the target BWP.

Optionally, the indication information is scheduling information in WUS information or scheduling information in PDCCH information.

Optionally, the method further includes: receiving network RRC information, where the RRC information includes one or more BWPs and one or more BWP inactivity timers configured for the user equipment. There is no correspondence between the BWP and the BWP inactive timer. The number of BWP and BWP inactive timers can be one or more. At this time, the BWP switching information sent by the network device to the user equipment includes the target BWP identifier for terminal switching and the BWP inactivation timer identifier that takes effect when switching to the target BWP. Among them, the multiple mentioned in all the specific implementation manners of the present application include two or more situations.

Specifically, step 110 includes: receiving handover information of the BWP, the handover information including the target BWP identification ID of the terminal handover, and the BWP inactivation timer identification ID that is effective when switching to the target BWP; according to the target BWP identification and validity The BWP inactivation timer identification of the BWP, the target BWP and the effective BWP inactivation timer are obtained from the RRC information.

Optionally, the method further includes: receiving network RRC information, where the configuration information includes one or more BWPs configured for the user equipment, and a BWP corresponding to a BWP corresponding to each of the one or more BWPs. Activate the timer. There is a one-to-one correspondence between the BWP and the BWP inactive timer. The number of BWP and BWP inactive timers can be one or more. At this time, the BWP switching information sent by the network device to the user equipment only needs to include the target BWP identifier of the terminal switching, because according to the BWP identifier, the BWP inactivation timer corresponding to the BWP identifier can be found in the RRC information.

Specifically, step 110 includes: receiving handover information of the BWP, the handover information including the target BWP identifier of the terminal handover; according to the target BWP identifier, obtaining the target BWP and the BWP corresponding to the target BWP inactive from the RRC information Timer.

Optionally, the user equipment stores an index table associated with the BWP and the BWP inactivation timer, searches for the target BWP in the RRC information according to the target BWP identifier, and searches for the BWP inactivity timing corresponding to the target BWP in the index table Device.

In practical applications, the BWP is a downlink DL BWP, and the BWP identifier is a DL BWP identifier.

In actual applications, the network RRC information sent by the network device to the user equipment also includes discontinuous reception DRX related parameters and/or wake-up signal WUS related parameters, and the DRX related parameters include DRX cycle and/or DRX duration timer, so The WUS related parameters include the WUS cycle and/or the time offset between the start of WUS and the start of DRX. Wherein, the WUS cycle is an integer multiple of the DRX cycle.

Specifically, the BWP switching information is BWP switching information triggered based on the wake-up signal WUS or BWP switching information based on the physical downlink control channel PDCCH.

For example, when the BWP handover information is WUS information, within the WUS cycle time, the user equipment monitors WUS in the currently active BWP and determines whether it receives the BWP handover information triggered by WUS; when it receives WUS trigger from the network device When determining whether to start the DRX duration timer in the DRX cycle, when the DRX duration timer is started in the DRX cycle, determine the target working bandwidth BWP to be switched and the corresponding BWP inactive timer.

Step 120: Switch to the target working bandwidth BWP, and start the BWP inactivity timer;

According to the target working bandwidth BWP and the BWP inactivation timer determined in step 110, the current BWP is switched to the target BWP, and the BWP inactivation timer is started at the same time. When the BWP inactivation timer expires, it automatically switches to the default BWP or the initial BWP.

Optionally, the method further includes: determining the target BWP and switching to the target BWP when receiving the indication information that the working bandwidth BWP inactivation timer is not to be started.

The indication information is scheduling information in WUS information or scheduling information in PDCCH information. When the WUS information carries scheduling information, the WUS information indicates whether to start the BWP inactivity timer. The PDCCH information can also be used to indicate whether to start the BWP inactivity timer.

Through the working bandwidth switching method in this embodiment, first determine the target working bandwidth BWP and the BWP inactivation timer to be switched, then switch to the target working bandwidth BWP, and start the corresponding BWP inactive timer, and switch automatically after the timing ends. It is the default BWP, which enables the user equipment to dynamically adjust the BWP inactive timer when performing BWP switching, so that the user equipment can switch to a BWP with a smaller bandwidth as soon as possible without the need for data transmission and reception, thereby further saving Energy consumption of user equipment.

Specific embodiment two

Please refer to FIG. 2, which is a schematic diagram of a user equipment module provided in the second embodiment of the present application. The user equipment 200 includes:

The confirmation module 210 determines the target working bandwidth BWP and the BWP inactivity timer;

The switching module 220 is configured to switch the current working bandwidth to the target working bandwidth BWP;

The start module 230 is used to start the BWP inactive timer.

Optionally, the user equipment further includes a receiving module 240, configured to receive indication information of whether to start the working bandwidth BWP inactivation timer, and when the indication information determines to start the BWP inactivation timer, the confirmation module 210 determines the target BWP, the switching module 220 switches the current BWP to the target BWP; when the indication information determines not to start the BWP inactivation timer, the confirmation module 210 determines the target BWP, and the switching module 220 Switch the current BWP to the target BWP.

Optionally, the receiving module 240 is further configured to receive network RRC information, where the RRC information includes one or more BWPs and one or more BWP inactivation timers configured for the user equipment, and the confirmation module is configured from the network In the RRC information, the target BWP and BWP inactivation timer are obtained.

Correspondingly, the confirmation module 210 is specifically configured to:

Receiving BWP handover information, where the handover information includes a target BWP identifier and a BWP inactive timer identifier;

According to the target BWP identifier and the inactive timer identifier, determine the target BWP and the BWP inactive timer.

Optionally, the receiving module 240 is further configured to receive network RRC information, where the RRC information includes one or more BWPs configured for the user equipment, and the BWP non-relevant BWP corresponding to each of the one or more BWPs. An activation timer, the confirmation module obtains a target BWP and a BWP inactivation timer corresponding to the BWP from the network RRC information.

Correspondingly, the confirmation module 210 is specifically configured to:

Receiving handover information of the BWP, where the handover information includes the target BWP identifier;

According to the target BWP identifier, a target BWP and a BWP inactivation timer corresponding to the BWP are determined.

In practical applications, the network RRC information further includes discontinuous reception DRX related parameters and/or wake-up signal WUS related parameters, the DRX related parameters include DRX cycle and/or DRX duration timer, and the WUS related parameters include WUS The period and/or the time offset between the start of WUS and the start of DRX. Wherein, the WUS cycle is an integer multiple of the DRX cycle.

The BWP handover information is WUS information or physical downlink control channel PDCCH information.

Optionally, when the BWP handover information is WUS information, within the WUS cycle time, the confirmation module is specifically used to:

Monitor WUS in the currently active BWP and determine whether it receives BWP switching information triggered by WUS; when receiving BWP switching information triggered by WUS from network equipment, determine whether to start the DRX duration timer in the DRX cycle. The DRX duration timer is started in the cycle, and the target working bandwidth BWP to be switched and the corresponding BWP inactive timer are determined at the same time.

When the BWP inactivation timer expires, the switching module 220 automatically switches the current BWP to the initial BWP of the default BWP.

Optionally, the BWP is a downlink DL BWP, and the BWP identifier is a DL BWP identifier.

Through the user equipment in this embodiment, first determine the target working bandwidth BWP and BWP inactivation timer to be switched, and then switch to the target working bandwidth BWP, and start the corresponding BWP inactive timer, and automatically switch to the default after the timing ends. BWP, which can dynamically adjust the BWP inactive timer when performing BWP switching, so that the user equipment can switch to a BWP with a smaller bandwidth as soon as possible without the need to send and receive data, thereby further saving the energy of the user equipment. Consumption.

Specific embodiment three

Please refer to FIG. 3, which is a schematic diagram of the hardware structure of a user equipment according to the third embodiment of the present application. The user equipment 300 includes a processor 310, a memory 320, a user interface 330, and a network interface 340. The above-mentioned components of the user equipment realize the communication connection between each other through the bus system.

The user interface 330 may be a hardware device that can interact with a user by a display or a pointing device (touch panel or touch screen, etc.). An operating system and application programs are stored in the memory 320.

After the processor 310 receives the working bandwidth switching message issued by the network device through the above-mentioned network structure 340, it reads the operating system and/or application program stored in the memory 320, and executes the steps in the above-mentioned specific embodiment 1, and first determines to switch The target working bandwidth BWP and the BWP inactivation timer are switched to the target BWP, and the corresponding BWP inactivation timer is started, so that the BWP inactivation timer is adjusted while switching the working bandwidth.

The processor 310 may also be an independent component or a collective name for multiple processing elements. For example, it may be a CPU, an ASIC, or one or more integrated circuits configured to implement the above methods, such as at least one microprocessor DSP, or at least one programmable gate FPGA.

In the above specific implementation manner of this application, first determine the target working bandwidth BWP and BWP inactivation timer to be switched, then switch to the target working bandwidth BWP, and start the corresponding BWP inactivation timer, and automatically switch to the default BWP after the timing ends. In this way, the BWP inactivation timer can be dynamically adjusted when performing BWP switching, so that the user equipment can switch to a BWP with a smaller bandwidth as soon as possible without the need to send and receive data, thereby further saving the energy consumption of the user equipment .

Specific embodiment four

Please refer to FIG. 4, which is a flowchart of a working bandwidth switching method provided in the fourth embodiment of the present application. The method is used in network equipment, and includes:

Step 410: Send BWP handover information to the user equipment, where the handover information includes the target BWP identifier.

Optionally, the method further includes:

Send instruction information for indicating whether to start the BWP inactivity timer to the user equipment.

Optionally, the method further includes:

Send network radio resource control RRC information to the user equipment, where the RRC information includes one or more BWPs and one or more BWP inactive timers configured for the user equipment, and the handover information also includes a BWP inactive timer identifier.

Optionally, sending network RRC information to the user equipment specifically includes:

Send network RRC information to the user equipment, where the RRC information includes one or more BWPs configured for the user equipment, and a BWP inactivation timer corresponding to each of the one or more BWPs.

In practical applications, the network RRC information further includes discontinuous reception DRX related parameters and/or wake-up signal WUS related parameters, the DRX related parameters include DRX cycle and/or DRX duration timer, and the WUS related parameters include WUS The period and/or the time offset between the start of WUS and the start of DRX. The WUS cycle is an integer multiple of the DRX cycle.

Step 420: Send BWP handover information to the user equipment, where the handover information includes a target working bandwidth BWP identifier to be handed over.

Optionally, the BWP may be a downlink DL BWP, and the BWP identifier may be a DL BWP identifier.

Optionally, the BWP handover information is wake-up signal WUS information or physical downlink control channel PDCCH information.

Through the working bandwidth switching method in this embodiment, the network device sends information including the identification of the target working bandwidth BWP to be switched to the user equipment, and the user equipment switches to the target working bandwidth BWP according to the switching information, and starts the corresponding BWP inactive timing After the timing ends, it will automatically switch to the default BWP, which can dynamically adjust the BWP inactive timer when the user equipment performs BWP switching, so that the user equipment can switch to a smaller bandwidth as soon as possible without the need for data transmission and reception. BWP, which further saves the energy consumption of user equipment.

Specific embodiment five

Please refer to FIG. 5, which is a schematic diagram of a network device module provided in the fifth embodiment of the present application. The user equipment 500 includes:

The sending module 510 is configured to send BWP handover information to the user equipment, where the handover information includes the target BWP identifier.

Optionally, the sending module is further configured to send indication information for indicating whether to start the BWP inactivity timer to the user equipment.

Optionally, the network device further includes:

The first configuration module 520 is configured to send network radio resource control RRC information to the user equipment, where the RRC information includes one or more BWPs and one or more BWP inactivation timers configured for the user equipment, and the switching information is also Including the BWP inactive timer flag.

Since there is no correspondence between the BWP inactivity timer and the BWP in the RRC information, correspondingly, the BWP switching information sent by the network device also includes the BWP inactivity timer identifier.

Optionally, the network device further includes:

The second configuration module is configured to send network RRC information to the user equipment, where the RRC information includes a BWP configured for the user equipment and a BWP inactivation timer corresponding to each of the one or more BWPs.

Because there is a one-to-one correspondence between the BWP inactive timer and the BWP in the RRC information. Correspondingly, the switching information may only include the target working bandwidth BWP identifier to be switched.

The network device in this embodiment sends information including the identification of the target working bandwidth BWP to be switched to the user equipment, and the user equipment switches to the target working bandwidth BWP according to the switching information, and starts the corresponding BWP inactivation timer. After the timing ends Automatically switch to the default BWP, so that the user equipment can dynamically adjust the BWP inactivation timer when performing BWP switching, so that the user equipment can switch to the BWP with a smaller bandwidth as soon as possible without the need for data transmission and reception. The energy consumption of user equipment is saved.

Specific embodiment six

Please refer to FIG. 6, which is a schematic diagram of the hardware structure of a network device 600 provided in the sixth embodiment of the present application. The network device 600 includes an antenna 610, a radio frequency device 620, and a baseband device 630. In the uplink direction, the radio frequency device 620 receives the information uploaded by the user equipment through the antenna 610, and sends the received information to the baseband device 630 for processing. In the downlink direction, the baseband device 630 sends the processed information to the radio frequency device 620, and the radio frequency device 620 processes the received information and sends it out through the antenna 610.

The baseband device 630 executes the steps of the working bandwidth switching method provided in the fourth embodiment.

Specifically, the baseband device 630 includes a processor 631, a memory 632, and a network interface 633. The processor 631 calls a program in the memory 632 to execute the steps of a working bandwidth switching method provided in the first embodiment. The network interface 633 exchanges information with the radio frequency device 620, and sends the signal processed by the processor 631 to the radio frequency device 620.

The processor 631 may be an independent component or a collective name for multiple processing components. For example, it may be a CPU, an ASIC, or one or more integrated circuits configured to implement the above methods, such as at least one microprocessor DSP, or at least one programmable gate FPGA.

The following will specifically describe the implementation process of this application in combination with three different application scenarios.

Specific embodiment seven

Please refer to FIGS. 7A and 7B, which are respectively a flowchart and a schematic diagram of a working bandwidth switching process provided in the seventh embodiment of this application.

In this embodiment, the network device configures at least one DL BWP and at least one BWP inactivity timer bwp-InactivityTimer for the user equipment.

The following example describes the entire working bandwidth switching process.

Step 710: The user equipment UE receives RRC information sent by the network equipment.

Step 710 is the RRC configuration process for the UE by the network device. Multiple BWP handover processes can share the same RRC configuration, or RRC configuration can be performed once for each BWP handover process.

In this embodiment, the RRC information includes: Default BWP, BWP1 and BWP2; bwp-InactivityTimer1 and bwp-InactivityTimer2; the time offset WUSTimeOffset between the start time of WUS occasion and the start time of subsequent DRX on duration. The WUS information also includes scheduling information indicating to start the BWP inactivity timer.

The time relationship between the WUS cycle and the DRX cycle is shown in FIG. 7C, and Ts is the time offset between the start time of the WUS cycle and the start time of the subsequent DRX cycle. In the figure, 1 ^st DRX cycle is the first DRX cycle, and 2 ^st DRX cycle is the second DRX cycle. In each DRX cycle, WUS has an active state and a sleep state. In the WUS activation time period in the figure, WUS is active.

Step 720: The UE monitors WUS on the currently activated BWP1 in the first WUS cycle, and the UE receives the BWP handover information triggered by WUS;

In this embodiment, the BWP handover information includes the start drx-OnDurationTimer, the handover target BWP ID, namely BWP2, and the BWP inactivity timer ID, namely bwp-InactivityTimer1.

Step 730: According to the received BWP switching information, the UE normally starts drx-OnDurationTimer in the first DRX cycle afterwards, switches the working bandwidth to DL BWP2, and starts the timer bwp-InactivityTimer1;

If shown in 7B, at t1, the working bandwidth is switched from BWP1 to BWP2, and the timer bwp-InactivityTimer1 is started.

Step 740: The UE receives PDCCH-based BWP handover information sent by the network device in the first DRX cycle;

In this embodiment, the PDCCH-based BWP handover information includes the handover target BWP ID, which is BWP1, and the BWP inactivity timer ID, which is bwp-InactivityTimer1.

Step 750: Switch the working bandwidth to BWP1 according to the received BWP switching information, and restart bwp-InactivityTimer1;

As shown in FIG. 7B, at time t2, the working bandwidth is switched from BWP2 to BWP1, and the timer bwp-InactivityTimer1 is started.

Step 760, the timer bwp-InactivityTimer1 times out, and the UE automatically switches to the default BWP;

As shown in Fig. 7B, at time t3, the timer bwp-InactivityTimer1 times out and automatically switches to the default BWP.

Step 770: In the second WUS cycle, the UE monitors WUS on the currently activated default BWP, and the UE receives BWP handover information triggered by WUS;

In this embodiment, the WUS-triggered BWP handover information monitored by the UE in the second WUS occasion includes the start drx-OnDurationTimer, the handover target BWP ID, namely BWP1, and the BWP inactivity timer ID, namely bwp-InactivityTimer2.

Step 780: According to the received BWP switching information, the UE normally starts the drx-OnDurationTimer in the subsequent second DRX cycle, switches the working bandwidth to BWP1, and starts the timer bwp-InactivityTimer2.

As shown in FIG. 7B, at t4, the default BWP is switched to BWP1, and the timer bwp-InactivityTimer2 is started.

Before the UE receives the BWP switching information in the next WUS occasion, bwp-InactivityTimer2 is used regardless of whether the active BWP of the UE is BWP1 or BWP2. When the UE receives the BWP handover information in the next WUS occasion, it repeats step 710 to step 780, which will not be repeated here.

In the working bandwidth switching process provided in this embodiment, the scheduling information in the WUS information indicates to start the BWP inactivity timer.

However, in other application scenarios, the scheduling information in the WUS information indicates that the UE does not start the BWP inactivation timer, and the UE receives the BWP switching information and switches the BWP without starting the BWP inactivity timer. When the data transmission and reception is completed After that, the working bandwidth is immediately switched back to the default BWP or the initial BWP.

In another application scenario, when the WUS information does not include scheduling information, the PDCCH information may indicate whether to start the BWP inactivity timer, and the WUS information or PDCCH information may indicate the switching of the BWP.

Specific embodiment eight

Please refer to FIGS. 8A and 8B, which are respectively a flowchart and a schematic diagram of another working bandwidth switching process provided in Embodiment 8 of this application.

In this embodiment, the network device configures the user equipment with at least one BWP and at least one BWP bwp-InactivityTimer.

The following example describes the entire working bandwidth switching process.

Step 810, the user equipment UE receives RRC information sent by the network equipment;

The RRC information includes: Default BWP, BWP1, BWP2, BWP3; bwp-InactivityTimer1 and bwp-InactivityTimer2.

Step 810 is the RRC configuration process for the UE by the network device. Multiple BWP handover processes can share the same RRC configuration, or RRC configuration can be performed once for each BWP handover process.

Step 820: The UE receives the BWP switching information of the first PDCCH sent by the network device on the currently activated BWP1;

In this embodiment, the BWP switching information of the first PDCCH includes the BWP ID indicating the switching target, namely BWP2, and the BWP inactivity timer ID, namely bwp-InactivityTimer1.

Step 830: According to the received BWP switching information of the first PDCCH, the UE switches the working bandwidth to DL BWP2, and starts the timer bwp-InactivityTimer1;

As shown in FIG. 8B, at time t1, the working bandwidth is switched from BWP1 to BWP2, and the timer bwp-InactivityTimer1 is started.

Step 840, the timer bwp-InactivityTimer1 times out, and the UE automatically switches to the default BWP;

As shown in FIG. 8B, at time t2, the timer bwp-InactivityTimer1 times out, and the UE automatically switches to the default BWP.

Step 850, the UE receives the BWP switching information of the second PDCCH sent by the network device on the currently activated default BWP;

In this embodiment, the BWP switching information of the second PDCCH includes the switching target BWP ID, namely DL BWP1, and the BWP inactivity timer ID, namely bwp-InactivityTimer2.

Step 860: Switch the working bandwidth to BWP1 according to the BWP switching information of the second PDCCH, and start bwp-InactivityTimer2;

As shown in FIG. 8B, at time t3, the working bandwidth is switched from the default BWP to BWP1, and the timer bwp-InactivityTimer2 is started.

Step 870, the UE receives the BWP switching information of the third PDCCH sent by the network device on the currently activated BWP1;

In this embodiment, the BWP switching information of the third PDCCH includes the switching target BWP ID, namely BWP2, and not starting the BWP inactivation timer.

Step 880: Switch the working bandwidth to BWP2 according to the BWP switching information of the third PDCCH.

As shown in Figure 8B, at t4, the working bandwidth is switched from BWP1 to BWP2, and the BWP inactivation timer is not started.

After the UE completes data reception in BWP2, it automatically switches to the default BWP.

In the working bandwidth switching process provided in this embodiment, in the working bandwidth switching information based on the PDCCH, the target working bandwidth to be switched is indicated while indicating whether to start the BWP inactive timer and which BWP inactive timer to use, The BWP inactive timer can be flexibly adjusted according to current needs.

Specific implementation mode nine

Please refer to FIG. 9, which is a flowchart of another working bandwidth switching process provided in the ninth embodiment of this application.

In this embodiment, the network device configures at least one BWP for the user equipment, and each configured BWP corresponds to a bwp-InactivityTimer.

The following example describes the entire working bandwidth switching process.

Step 910, the UE receives the BWP handover information sent by the network device;

In this embodiment, the BWP switching information may be PDCCH or WUS-based BWP switching information. The BWP switching information includes the target BWP ID of the handover.

Before the UE receives the BWP handover information sent by the network device, the network device sends network RRC information to the UE in advance. The RRC information includes: default BWP, at least one BWP, and bwp-InactivityTimer corresponding to the BWP.

Step 920: According to the received BWP switching information, the UE switches the working bandwidth to the BWP indicated by the target BWP ID, and starts the bwp-InactivityTimer corresponding to the target BWP;

In step 930, the timer bwp-InactivityTimer expires, and the UE automatically switches to the default BWP.

In the working bandwidth switching process provided in this embodiment, the BWP and the corresponding working bandwidth inactivation timer are configured for the UE in the network RCC information. In the working bandwidth switching information based on PDCCH or WUS, it is only necessary to indicate the switch to be switched. For the target working bandwidth, the UE can start the corresponding BWP inactivation timer while switching the working bandwidth according to the RCC information.

This application is described with reference to flowcharts and/or block diagrams of methods, equipment (systems), and computer program products according to the embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment can be generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram. The program may be stored in a computer-readable storage medium, which may include: read only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.

The foregoing specific embodiments illustrate but do not limit the application, and those skilled in the art can design multiple alternative examples within the scope of the claims. Those skilled in the art should be aware that, within the scope of this application as defined by the appended claims, appropriate adjustments and modifications can be made to the specific implementation scheme. Therefore, any modifications and changes made in accordance with the spirit and principles of this application are within the scope of this application as defined by the appended claims.

Claims

A working bandwidth switching method, the method is used in user equipment, and is characterized in that the method includes:

Determine the target BWP and BWP inactive timer;

Switch to the target BWP and start the BWP inactivity timer.
The method according to claim 1, characterized in that, before the step of determining the target BWP and BWP inactivity timer, the method further comprises:

Receive indication information for indicating whether to start the BWP inactive timer;

When the instruction information determines to start the BWP inactivation timer, execute the step of determining the target BWP and the BWP inactivation timer, and switch to the target BWP, and start the BWP inactivation timer A step of;

When the indication information determines not to start the BWP inactivation timer, the method further includes:

Determine the target BWP;

Switch to the target BWP.
The method according to claim 2, wherein the indication information is scheduling information in WUS information or scheduling information in PDCCH information.
The method according to claim 1, wherein said determining the target BWP and BWP inactivation timer comprises:

Receiving BWP handover information, where the handover information includes a target BWP identifier and a BWP inactive timer identifier;

According to the target BWP identifier and the BWP inactive timer identifier, the target BWP and the BWP inactive timer are determined.
The method of claim 4, wherein the determining the target BWP and the BWP inactivation timer according to the target BWP identifier and the BWP inactivation timer identifier comprises:

Obtain the target BWP and the BWP inactivation timer from network radio resource control RRC information, where the RRC information includes one or more BWPs and one or more BWP inactivity timers configured for the user equipment.
The method according to claim 1, wherein the determining the target working bandwidth BWP and the BWP inactivation timer comprises:

Receiving handover information of the BWP, where the handover information includes the target BWP identifier;

According to the target BWP identifier, a target BWP and a BWP inactivation timer corresponding to the BWP are determined.
The method according to claim 6, wherein the determining the target BWP and the BWP inactivity timer corresponding to the BWP according to the target BWP identifier comprises:

Obtain the target BWP and the BWP inactivation timer corresponding to the BWP from the RRC information. The RRC information includes one or more BWPs configured for the user equipment, and the BWP associated with each of the one or more BWPs. The corresponding BWP inactive timer.
The method according to any one of claims 4-7, wherein the BWP handover information includes at least one of wake-up signal WUS information or physical downlink control channel PDCCH information.
The method according to claim 8, wherein when the BWP handover information is WUS information, the receiving BWP handover information comprises:

In the WUS cycle time, judge whether the BWP switching information is received;

When the BWP switching information is received, it is determined whether to start the DRX duration timer within the DRX cycle, and if so, the DRX duration timer is started.
The method according to any one of claims 1-9, wherein the BWP is a downlink DL BWP, and the BWP identifier is a DL BWP identifier.
The method according to any one of claims 1-10, wherein the method further comprises:

When the activated BWP inactivity timer expires, it will automatically switch to the default BWP or the initial BWP.
A user equipment, characterized in that the user equipment includes:

Confirmation module to determine the target BWP and BWP inactive timer;

The switching module is used to switch the current BWP to the target BWP;

The start module is used to start the BWP inactive timer.
The user equipment according to claim 12, wherein the user equipment further comprises:

The receiving module is used to receive the indication information of whether to start the working bandwidth BWP inactivation timer. When the indication information determines to start the BWP inactivation timer, the confirmation module determines the target BWP and the BWP inactivation timer, so The switching module switches the current BWP to the target BWP, and the starting module starts the BWP inactivity timer; when the indication information determines that the BWP inactivity timer is not to be started, the confirmation module determines the target BWP , The switching module switches the current BWP to the target BWP.
The user equipment according to claim 13, wherein the indication information is scheduling information in WUS information or scheduling information in PDCCH information.
The user equipment according to claim 12, wherein the confirmation module is specifically configured to:

Receiving BWP handover information, where the handover information includes a target BWP identifier and a BWP inactive timer identifier;

According to the target BWP identifier and the inactive timer identifier, determine the target BWP and the BWP inactive timer.
The user equipment according to claim 15, wherein the receiving module is further configured to receive network radio resource control RRC information, and the RRC information includes one or more BWPs, one or more BWPs configured for the user equipment Inactive timer, the confirmation module obtains the target BWP and BWP inactive timer from the network RRC information.
The user equipment according to claim 12, wherein the confirmation module is further specifically configured to:

Receiving handover information of the BWP, where the handover information includes the target BWP identifier;

According to the target BWP identifier, a target BWP and a BWP inactivation timer corresponding to the BWP are determined.
The user equipment according to claim 17, wherein the receiving module is further configured to receive network RRC information, and the RRC information includes one or more BWPs configured for the user equipment, and the one or more BWPs. The BWP inactivation timer corresponding to each BWP in the above, the confirmation module obtains the target BWP and the BWP inactivation timer corresponding to the BWP from the network RRC information.
The user equipment according to any one of claims 15-18, wherein the handover information of the BWP is wake-up signal WUS information or physical downlink control channel PDCCH information.
The user equipment according to claim 19, wherein when the BWP handover information is WUS information, the confirmation module receiving the BWP handover information specifically includes:

In the WUS cycle time, judge whether the BWP switching information is received;

When the BWP switching information is received, it is determined whether to start the DRX duration timer within the DRX cycle, and if so, the DRX duration timer is started.
The user equipment according to claims 12-20, wherein the BWP is a downlink DL BWP, and the BWP identifier is a DL BWP identifier.
The user equipment according to claims 12-21, wherein the switching module is further configured to: automatically switch to the default BWP or the initial BWP when the activated BWP inactivation timer expires.
A user equipment, the user equipment comprising: a processor and a memory, characterized in that:

A working bandwidth switching program stored in the memory and running on the processor, when the processor executes the working bandwidth switching program, the working bandwidth switching according to any one of claims 1 to 11 is realized method.
A computer-readable storage medium, characterized in that a working bandwidth switching program program is stored on the computer-readable storage medium, and when the upper working bandwidth switching program program is executed by a processor, any one of claims 1 to 11 is implemented. One of the described work bandwidth switching procedures.
A working bandwidth switching method, the method is applied to a network device, characterized in that the working bandwidth switching method includes:

Send BWP handover information to the user equipment, where the handover information includes the target BWP identifier.
The method of claim 25, wherein the method further comprises:

Send instruction information for indicating whether to start the BWP inactivity timer to the user equipment.
The method according to claim 26, wherein the indication information is scheduling information in WUS information or scheduling information in PDCCH information.
The method of claim 25, wherein the method further comprises:

Send network radio resource control RRC information to the user equipment, where the RRC information includes one or more BWPs and one or more BWP inactive timers configured for the user equipment, and the handover information also includes a BWP inactive timer identifier.
The method of claim 25, wherein the method further comprises:

Send network RRC information to the user equipment, where the RRC information includes one or more BWPs configured for the user equipment, and a BWP inactivation timer corresponding to each of the one or more BWPs.
The method according to any one of claims 25-29, wherein the switching information of the BWP is wake-up signal WUS information or physical downlink control channel PDCCH information.
The method according to any one of claims 25-30, wherein the BWP is a downlink DL BWP, and the BWP identifier is a DL BWP identifier.
A network device, characterized in that, the network device includes:

The sending module is configured to send BWP handover information to the user equipment, where the handover information includes the target BWP identifier.
The network device according to claim 32, wherein the sending module is further configured to send indication information for indicating whether to start the BWP inactivity timer to the user equipment.
The network device according to claim 33, wherein the indication information is scheduling information in WUS information or scheduling information in PDCCH information.
The network device according to claim 32, wherein the network device further comprises:

The first configuration module is configured to send network radio resource control RRC information to the user equipment. The RRC information includes one or more BWPs and one or more BWP inactive timers configured for the user equipment, and the handover information also includes BWP inactive timer identification.
The network device according to claim 32, wherein the network device further comprises:

The second configuration module is configured to send network RRC information to the user equipment, where the RRC information includes a BWP configured for the user equipment and a BWP inactivation timer corresponding to each of the one or more BWPs.
The network device according to any one of claims 32-36, the BWP handover information is wake-up signal WUS information or physical downlink control channel PDCCH information.
The network device according to any one of claims 32-37, wherein the BWP is a downlink DL BWP, and the BWP identifier is a DL BWP identifier.
A network device comprising: a processor and a memory, characterized in that:

A working bandwidth switching program stored in the memory and running on the processor, when the processor executes the working bandwidth switching program, the working bandwidth switching according to any one of claims 25 to 31 is realized Transmission method.
A computer-readable storage medium, wherein a working bandwidth switching program is stored on the computer-readable storage medium, and when the working bandwidth switching program is executed by a processor, the above-mentioned any one of claims 25 to 31 is implemented. The transmission method of working bandwidth switching described above.