WO2021063265A1

WO2021063265A1 - Method and apparatus for determining effective time

Info

Publication number: WO2021063265A1
Application number: PCT/CN2020/117824
Authority: WO
Inventors: 薛祎凡; 铁晓磊; 王键
Original assignee: 华为技术有限公司
Priority date: 2019-09-30
Filing date: 2020-09-25
Publication date: 2021-04-08
Also published as: CN112584506A

Abstract

Disclosed are a method and apparatus for determining an effective time, wherein same relate to the technical field of communications and are used for determining an effective time of the minimum available scheduling interval on a BWP to which a terminal switches. The method comprises: when a BWP activation timer for instructing a terminal to switch from an activated BWP to a default BWP times out, the terminal switching from a first BWP to a second BWP, and determining an effective time of the minimum available scheduling interval on the second BWP; or, the terminal receiving RRC signaling from a network device and used for instructing the terminal to switch from the first BWP to the second BWP, switching from the first BWP to the second BWP according to the RRC signaling, and determining the effective time of the minimum available scheduling interval on the second BWP.

Description

Method and device for determining effective time

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office on September 30, 2019, the application number is 201910939938.2, and the application name is "a method and device for determining effective time", the entire content of which is incorporated by reference In this application.

Technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to a method and device for determining an effective time.

Background technique

In Rel-15 specified by the 3rd generation partnership project (3GPP), when a network device, such as a base station, schedules the data channel of a terminal, the network device first sends a scheduling information, and the scheduling information is used for scheduling The terminal’s data channel, for example, the physical downlink control channel (physical downlink control channel, PDCCH) sent through the physical downlink control channel (physical downlink shared channel, PDSCH) scheduling information to schedule the terminal’s PDSCH, or the physical downlink control sent through the PDCCH The scheduling information of the physical downlink shared channel (PUSCH) schedules the PUSCH of the terminal. The scheduling information can indicate the transmission parameters of the data channel, such as the time domain resource location of the data channel. The terminal can use the scheduling information to indicate the data channel. The time domain resource location to receive the data channel.

In the above scheduling process, the network device can configure multiple optional values of the minimum available scheduling interval for the terminal, and the minimum available scheduling interval can include the minimum value of K0 and/or the minimum value of K2, for example: the network device is based on each bandwidth part of the terminal (bandwidth part, BWP) Configure the optional values of the K0 minimum and/or K2 minimum, so that the terminal can determine the time slot position of the data channel scheduled by the PDCCH on the BWP according to the minimum available scheduling interval corresponding to the BWP. The PDSCH is received or the PUSCH is transmitted at the slot position.

Since different BWPs may be configured with different minimum available scheduling intervals, if a BWP switch occurs, the minimum available scheduling interval on the new BWP will be updated, which may be different from the minimum available scheduling interval used on the previous BWP, and the terminal needs to enable the new one The minimum available scheduling interval on the BWP. However, in certain scenarios, such as: timer-based BWP handover, radio resource control (Radio Resource Control, RRC) signaling-based BWP handover, etc., when will the minimum available scheduling interval on the new BWP be activated? Not explicitly discussed.

Summary of the invention

The embodiment of the present application provides a method and device for determining the effective time, so as to determine the effective time of the minimum available scheduling interval on a new BWP.

To achieve the foregoing objectives, the following technical solutions are adopted in the embodiments of the present application:

In a first aspect, a method for determining an effective time is provided. The method includes: when the BWP activation timer for instructing the terminal to switch from the activated BWP to the default BWP expires, the terminal switches from the first BWP to the second BWP, and, The terminal determines the effective time of the smallest available scheduling interval on the second BWP.

The first BWP may be a BWP currently activated by the terminal, which is a non-default BWP, and the second BWP may be a default BWP. Based on the method described in the first aspect, the terminal can determine the effective time of the minimum available scheduling interval on the new BWP when the BWP activation timer expires and the BWP is handed over, thereby avoiding the communication between the network side and the terminal. The problem of inconsistent understanding of the time when the minimum available scheduling interval on the BWP starts to be activated.

In a possible design, the BWP activation timer timeout includes: the BWP activation timer expires in time slot n, where n is an integer greater than or equal to 0; the effective time of the smallest available scheduling interval on the second BWP is not earlier than the Qth Time slots; Q can be determined according to time slot n. Based on this possible design, the effective time of the minimum available scheduling time interval on the second BWP can be determined according to the time when the BWP activation timer expires, which is simple and easy to implement.

In a possible design, in combination with the first aspect or any possible design of the first aspect, Q is equal to

Where μ _T is the numerology of the system parameter of the second BWP, μ ₁ is the numerology of the first BWP, and T _{BWPswitchingDalay} is the completion time for the terminal to switch from the first BWP to the second BWP. Based on this possible design, the time when the BWP handover is completed can be determined as the effective time of the smallest available scheduling interval on the second BWP.

Where μ _T is the numerology of the second BWP, μ ₁ is the numerology of the first BWP, and X is determined according to the subcarrier spacing of the second BWP; or, Q is equal to

Where μ _T is the numerology of the second BWP, μ ₁ is the numerology of the first BWP, and X is determined according to the subcarrier interval of the first BWP.

Based on this possible design, the minimum available scheduling interval on the new BWP can be effective at a time point after time slot n and a preset time interval from time slot n.

In the second aspect, the present application provides a communication device. The communication device may be a terminal or a chip or a system on a chip in the terminal, and may also be a terminal used to implement the second aspect or any possible design of the second aspect. The function module of the method. The communication device can implement the functions performed by the terminal in the foregoing aspects or various possible designs, and the functions can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions. For example, the communication device may include: a switching unit and a determining unit;

The switching unit is configured to switch the BWP of the terminal from the first BWP to the second BWP when the BWP activation timer used to instruct the terminal to switch from the activated BWP to the default BWP expires;

The determining unit is used to determine the effective time of the smallest available scheduling interval on the second BWP.

The first BWP may be a BWP currently activated by the terminal, which is a non-default BWP, and the second BWP may be a default BWP. Based on the communication device described in the second aspect, when the BWP activation timer expires and the BWP is handed over, the effective time of the minimum available scheduling interval on the new BWP can be determined, which avoids the need for communication between the network side and the terminal. The problem of inconsistent understanding of the time when the minimum available scheduling interval on the BWP starts to be activated.

In a possible design, in combination with the second aspect or any possible design of the second aspect, Q is equal to

In a third aspect, a communication device is provided. The communication device may be a terminal or a chip or a system on a chip in the terminal. The communication device can implement the functions performed by the terminal in the foregoing aspects or various possible designs, and the functions can be implemented by hardware. In a possible design, the communication device may include a processor and a communication interface, and the processor may be used to support the communication device to implement the first aspect or the functions involved in any possible design of the first aspect, for example : The processor is used to switch the BWP of the terminal from the first BWP to the second BWP when the BWP activation timer for instructing the terminal to switch from the activated BWP to the default BWP expires, and to determine the validity of the minimum available scheduling interval on the second BWP time. In another possible design, the communication device may further include a memory, and the memory is used to store necessary computer-executed instructions and data of the communication device. When the communication device is running, the processor executes the computer-executable instructions stored in the memory, so that the communication device executes the method for determining the effective time as described in the first aspect or any one of the possible designs of the first aspect .

In a fourth aspect, a computer-readable storage medium is provided. The computer-readable storage medium may be a readable non-volatile storage medium, and the computer-readable storage medium stores instructions when it runs on a computer. , Causing the computer to execute the method for determining the effective time described in the first aspect or any one of the possible designs of the foregoing aspects.

In a fifth aspect, a computer program product containing instructions is provided, which when run on a computer, causes the computer to execute the method for determining the effective time described in the first aspect or any one of the possible designs of the foregoing aspects.

In a sixth aspect, a communication device is provided. The communication device may be a terminal or a chip or a system on a chip in the terminal. The communication device includes one or more processors and one or more memories. The one or more memories are coupled with the one or more processors, and the one or more memories are used to store computer program codes, and the computer program codes include computer instructions. When the one or more processors When the computer instruction is executed, the communication device is caused to execute the method for determining the effective time as described in the first aspect or any possible design of the first aspect.

Among them, the technical effects brought about by any of the design methods of the third aspect to the sixth aspect can be referred to the technical effects brought about by the above-mentioned first aspect or any possible design of the first aspect, and will not be repeated here.

In a seventh aspect, a method for determining an effective time is provided. The method includes: a terminal receives an RRC signaling from a network device for instructing the terminal to switch from a first BWP to a second BWP, and according to the RRC signaling, from the first BWP Switch to the second BWP and determine the effective time of the smallest available scheduling interval on the second BWP.

Based on the method described in the seventh aspect, the terminal can switch the BWP after receiving the RRC signaling for instructing the BWP switching, and determine the effective time of the minimum available scheduling interval on the new BWP, avoiding the network side and the terminal There is an inconsistent understanding of the time when the minimum available scheduling interval on the new BWP starts to be activated.

In a possible design, in conjunction with the seventh aspect, RRC signaling is carried in the physical downlink shared channel PDSCH. The PDSCH is located in time slot n, where n is an integer greater than or equal to 0, and the effective time of the smallest available scheduling interval on the second BWP Not earlier than the Qth time slot. Based on this possible design, the effective time of the minimum available scheduling interval on the second BWP can be determined according to the time slot occupied by the PDSCH carrying the RRC signaling, which is simple and easy.

In a possible design, combining the seventh aspect or any possible design of the seventh aspect, Q is equal to

Wherein, T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, T _{BWPswitchingDalay} is the completion time for the terminal to switch from the first BWP to the second BWP, and the length of the time slot is the length of the previous time slot of the second BWP. Based on this possible design, the time for receiving the RRC signaling, analyzing the RRC signaling, and completing the BWP handover can be determined as the effective time of the smallest available scheduling interval on the second BWP.

In a possible design, in combination with the seventh aspect or any possible design of the seventh aspect, Q is equal to n+X, X=max(Y, Z), where Y is equal to 0, and Z is equal to

Among them, T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the length of the time slot is the length of the previous time slot of the second BWP. Based on this possible design, the minimum available scheduling interval on the new BWP can be validated after the time slot n occupied by the PDSCH carrying the RRC signaling and at a time point separated from the time slot n by a preset length of time.

In a possible design, combining the seventh aspect or any possible design of the seventh aspect, RRC signaling is carried in PDSCH, PDSCH is scheduled by PDCCH, PDCCH is located in time slot m, and m is an integer greater than or equal to 0, The effective time of the smallest available scheduling interval on the second BWP is not earlier than the Rth time slot, where R is equal to m+X, and X is equal to

Y is the minimum available scheduling interval currently in effect for the terminal, T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the length of the time slot is the length of the previous time slot of the second BWP. Based on this possible design, it can be used to schedule the minimum available scheduling interval on the new BWP after the time slot m occupied by the PDCCH of the RRC signaling and at a time point separated from the time slot m by a preset length of time.

In an eighth aspect, the present application provides a communication device. The communication device may be a terminal or a chip or a system on a chip in the terminal, and may also be a terminal used to implement the seventh aspect or any possible design of the seventh aspect. The function module of the method. The communication device can implement the functions performed by the terminal in the foregoing aspects or various possible designs, and the functions can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions. For example, the communication device may include: a receiving unit, a switching unit, and a determining unit;

The receiving unit is configured to receive RRC signaling used to instruct the terminal to switch from the first BWP to the second BWP from the network device;

The switching unit is used to switch from the first BWP to the second BWP according to RRC signaling;

Based on the communication device described in the eighth aspect, after receiving the RRC signaling for instructing the BWP switching, the BWP can be switched, and the effective time of the minimum available scheduling time interval on the new BWP can be determined, thereby avoiding the network side and the terminal There is an inconsistent understanding of the time when the minimum available scheduling interval on the new BWP starts to be activated.

In a possible design, in conjunction with the eighth aspect, RRC signaling is carried in the physical downlink shared channel PDSCH. The PDSCH is located in time slot n, where n is an integer greater than or equal to 0, and the effective time of the minimum available scheduling interval on the second BWP Not earlier than the Qth time slot. Based on this possible design, the effective time of the minimum available scheduling interval on the second BWP can be determined according to the time slot occupied by the PDSCH carrying the RRC signaling, which is simple and easy.

In a possible design, in combination with the eighth aspect or any possible design of the eighth aspect, Q is equal to

In a possible design, in combination with the eighth aspect or any possible design of the eighth aspect, Q is equal to n+X, X=max(Y, Z), where Y is equal to 0, and Z is equal to

In a possible design, in combination with the eighth aspect or any possible design of the eighth aspect, the RRC signaling is carried in the PDSCH, the PDSCH is scheduled by the PDCCH, the PDCCH is located in the time slot m, and m is an integer greater than or equal to 0, The effective time of the smallest available scheduling interval on the second BWP is not earlier than the Rth time slot, where R is equal to m+X, and X is equal to

In a ninth aspect, a communication device is provided. The communication device may be a terminal or a chip or a system on a chip in the terminal. The communication device can implement the functions performed by the terminal in the foregoing aspects or various possible designs, and the functions can be implemented by hardware. In a possible design, the communication device may include a processor and a communication interface, and the processor may be used to support the communication device to implement the seventh aspect or the functions involved in any possible design of the seventh aspect, for example, : The processor receives the RRC signaling used to instruct the terminal to switch from the first BWP to the second BWP from the network device through the communication interface, and switches from the first BWP to the second BWP according to the RRC signaling, and determines that the second BWP is on The effective time of the smallest available scheduling interval. In another possible design, the communication device further includes a memory, and the memory is used to store necessary computer-executed instructions and data of the communication device. When the communication device is running, the processor executes the computer-executable instructions stored in the memory, so that the communication device executes the method for determining the effective time as described in the seventh aspect or any one of the possible designs of the seventh aspect. .

In a tenth aspect, a computer-readable storage medium is provided. The computer-readable storage medium may be a readable non-volatile storage medium, and the computer-readable storage medium stores instructions when it runs on a computer. , So that the computer executes the method for determining the effective time described in the seventh aspect or any one of the possible designs of the foregoing aspects.

In an eleventh aspect, a computer program product containing instructions is provided, which when run on a computer, causes the computer to execute the method for determining the effective time of the seventh aspect or any one of the possible designs of the foregoing aspects.

In a twelfth aspect, a communication device is provided. The communication device is a terminal or a chip or a system on a chip in the terminal. The communication device includes one or more processors and one or more memories. The one or more memories are coupled with the one or more processors, and the one or more memories are used to store computer program codes, and the computer program codes include computer instructions. When the one or more processors When the computer instruction is executed, the communication device is caused to execute the method for determining the effective time as described in the seventh aspect or any possible design of the seventh aspect.

Among them, the technical effects brought about by any one of the ninth aspect to the twelfth aspect can refer to the technical effects brought about by any possible design of the seventh aspect or the seventh aspect, and will not be repeated here.

In a thirteenth aspect, an embodiment of the present application provides a communication system. The communication system may include: the terminal or network device according to any one of the second aspect or the sixth aspect; The terminal and network equipment described in any one of the twelve aspects.

Description of the drawings

FIG. 1 is a simplified schematic diagram of a system architecture provided by an embodiment of the application;

FIG. 2 is a schematic diagram of a communication device provided by an embodiment of this application;

FIG. 3 is a flowchart of a method for determining an effective time according to an embodiment of the application;

FIG. 4a is a schematic diagram of determining the minimum available scheduling interval on the BWP according to an embodiment of the application;

FIG. 4b is another schematic diagram of determining the minimum available scheduling interval on the BWP according to an embodiment of the application;

FIG. 4c is a schematic diagram of a terminal for saving power consumption according to an embodiment of the application;

FIG. 5 is a schematic diagram of a scene in which a user browses a webpage through a mobile phone according to an embodiment of the application;

FIG. 6 is a flowchart of a method for determining an effective time according to an embodiment of the application;

FIG. 7 is a schematic diagram of another scenario in which a user browses a webpage through a mobile phone according to an embodiment of the application;

FIG. 8 is a schematic diagram of the composition of a communication device 80 provided by an embodiment of this application;

FIG. 9 is a schematic diagram of the composition of a communication system provided by an embodiment of this application.

Detailed ways

Before introducing the embodiments of the present application, some terms involved in the embodiments of the present application will be explained:

Bandwidth part (BWP): A part of the system bandwidth. The system bandwidth can refer to the bandwidth of a carrier. The system bandwidth can be very large, such as 200MHz or 400MHz. Some terminals cannot support such a large system bandwidth. Therefore, the network equipment can configure the BWP for the terminal, such as: part of the system bandwidth, 20MHz , The terminal can communicate with network equipment on 20MHz. BWP can be divided into downlink BWP (downlink BWP, DL BWP) and uplink BWP (uplink BWP, UP BWP), UP BWP can be used to transmit signals sent from the terminal to the network equipment, that is, the terminal can send uplink signals on the UL BWP; The downlink BWP can be used to transmit the signal sent from the network device to the terminal, and the terminal can receive the downlink signal on the DL BWP. The network device can configure multiple DL BWPs and multiple UL BWPs for the terminal, and activate at least one DL BWP and at least one UL BWP. The terminal receives the downlink signal sent by the network device on the activated DL BWP, including but not Limited to downlink control signaling and downlink data; the terminal sends uplink signals on the activated UL BWP, including but not limited to uplink control signaling, uplink data, scheduling request (SR), channel sounding reference signal (sounding reference signal, SRS), channel state information (channel state information, CSI)/channel quality indicator (channel quality indicator, CQI) feedback, etc.

The network device can configure the BWP parameters and the minimum available scheduling interval for each BWP, and the BWP parameters and the minimum available scheduling interval of different BWP configurations may be different. Wherein, the BWP parameter may include a BWP coefficient parameter (numerology), where the system parameter may also be named as a parameter or other names, which is not limited. numerology corresponds to the sub-carrier spacing of BWP and the length of BWP time slot. The sub-carrier spacing of BWP is equal to 2 ^μ × 15 [kHz], and μ is the numerology of BWP. The larger the numerology of the BWP, the larger the sub-carrier spacing of the BWP, and the shorter the corresponding symbol length. For example, Table 1 below is a BWP parameter table. As shown in Table 1, numerology can take values from 0 to 3. The subcarrier intervals corresponding to these four values are: 15kHz, 30kHz, 60kHz, and 120kHz. The gap length is: 1ms, 0.5ms, 0.25ms, 0.125ms.

Table I

numerologynumerology	子载波间隔(kHz)Subcarrier spacing (kHz)	时隙长度(ms)Time slot length (ms)
00	1515	11
11	3030	0.50.5
22	6060	0.250.25
33	120120	0.1250.125

Among them, the network device may configure one or more minimum available scheduling intervals for each BWP. For example, the network device can configure 0, 1, or 2 minimum available scheduling intervals on a BWP for the terminal.

The minimum available scheduling interval can refer to the minimum time slot difference between the time slot occupied by the physical downlink control channel (PDCCH) and the time slot occupied by the data channel scheduled by the PDCCH, and the time slot occupied by the PDCCH The time slot occupied by the data channel scheduled with the PDCCH may be the same or different. The data channel may include a physical uplink shared channel (PUSCH) and a physical downlink shared channel (PDSCH). The PUSCH may be referred to as an uplink data channel, and the PDSCH may be referred to as a downlink data channel.

In the 3GPP protocol, the K0 value indicates the time slot difference between the time slot occupied by the PDCCH and the time slot occupied by the scheduled PDSCH. The value of K0 has a value set, which can be included in the time domain. In the resource allocation (time domain resource allocation, TDRA) table, it is configured to the terminal by the network device.

For example, Table 2 below shows the TDRA table configured by the network device for the terminal when the PDCCH schedules the PDSCH. As shown in Table 2, the TDRA table includes the index value (index) and the K0 value corresponding to the index value. The value of K0 can be {0 , 1, 2…….}. The network device can indirectly indicate the K0 value to the terminal by indicating the index value to the terminal. If K0=0, it means that PDCCH and PDSCH are in the same time slot, that is, "single slot scheduling". If K0>0, it means that PDCCH and PDSCH are not in the same time slot, that is, "cross-slot scheduling".

Table II

索引值(index)Index	K0值K0 value
00	00
11	11
22	11

In the 3GPP protocol, the K2 value is used to indicate the time slot difference between the time slot occupied by the PDCCH and the time slot occupied by the scheduled PUSCH. The value of K2 has a value set, which can be included in the TDRA table Configured to the terminal. For example, Table 3 below shows the TDRA table configured by the network device for the terminal when the PDCCH schedules the PUSCH. As shown in Table 3, the TDRA table includes the index value and the K2 value corresponding to the index value. The network device can indicate the index value to the terminal. Indirectly indicates the K2 value to the terminal. As shown in Table 3, if K2=0, it means that PDCCH and PUSCH are in the same time slot, that is, "simultaneous slot scheduling". If K2>0, it means that PDCCH and PUSCH are not in the same time slot, that is, "cross-slot scheduling".

Table Three

索引值(index)Index	K2值K2 value
00	22
11	22

It should be noted that Table 1 and Table 2 are only exemplary tables. In addition to the content shown in the table, Table 1 and Table 2 may also include other content, such as starting and length indication values. incdication value), mapping type (mapping type), etc., this application does not limit this.

The following describes a method for determining the generation time provided by the embodiments of the present application in conjunction with the accompanying drawings in the specification.

The method for determining the effective time provided by the embodiments of the present application can be used in a communication system that supports multiple scheduling modes, such as: it can be applied to the fourth generation (4 ^th generation, 4G) system, long term evolution (long term evolution, LTE) system, Any of the fifth generation (5th generation, 5G) system, new radio (NR) system, NR-vehicle-to-everything (V2X) system, can also be applied to other downloads There are no restrictions on first-generation communication systems, etc. The following uses the communication system shown in FIG. 1 as an example to describe the method provided in the embodiment of the present application.

FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1, the communication system may include a network device and multiple terminals, such as terminal 1 and terminal 2. The terminal can be located within the coverage of the network device, and is connected to the network device. In the system shown in Figure 1, the network device can configure multiple BWPs for the terminal, each BWP is configured with a minimum available scheduling interval, and the terminal can communicate with the network device through the activated BWP. For example, as shown in Figure 1, the terminal can determine the time slot position of the downlink data scheduled by the PDCCH through the minimum available scheduling interval on the downlink BWP, and receive the downlink data sent by the network device at the determined time slot position; the terminal can also use The minimum available scheduling interval on the uplink BWP determines the time slot position of the uplink data scheduled by the PDCCH, and sends data to the network device at the determined time slot position. It should be noted that Figure 1 is only an exemplary framework diagram, the number of nodes included in Figure 1 is not limited, and in addition to the functional nodes shown in Figure 1, it can also include other nodes, such as: core network equipment, gateway equipment , Application servers, etc., are not restricted.

Among them, the network equipment is mainly used to implement functions such as terminal resource scheduling, wireless resource management, and wireless access control. Specifically, the network device may be any of a small base station, a wireless access point, a transmission receive point (TRP), a transmission point (TP), and some other access node.

The terminal may be a terminal equipment (terminal equipment) or a user equipment (user equipment, UE) or a mobile station (mobile station, MS) or a mobile terminal (mobile terminal, MT), etc. Specifically, the terminal can be a mobile phone (mobile phone), a tablet computer, or a computer with wireless transceiver function, it can also be a virtual reality (VR) terminal, an augmented reality (AR) terminal, and wireless in industrial control. Terminals, wireless terminals in unmanned driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in smart cities, smart homes, in-vehicle terminals, etc. In the embodiments of the present application, the device used to implement the function of the terminal may be a terminal, or a device capable of supporting the terminal to implement the function, such as a chip system. In the following, the method for determining the effective time provided by the embodiment of the present application is described by taking an example that the device for implementing the function of the terminal is a terminal.

In the system shown in Figure 1, the terminal can switch from one BWP to another BWP, that is, a BWP switch occurs. For example: when the terminal is in any of the following three scenarios, BWP switching can occur:

Scenario (1): The terminal receives physical layer dynamic signaling from network equipment, such as L1 signaling (signalliong), which is used to instruct the terminal to switch from one BWP to another BWP, that is, the physical layer dynamics The signaling is used to instruct the terminal to perform BWP switching, and the terminal performs BWP switching according to the received physical layer dynamic signaling.

At present, under scenario (1), the physical layer dynamic signaling is carried in the PDCCH. When the physical layer dynamic signaling is sent to the terminal in time slot n, the terminal determines the minimum available schedule on the BWP after the handover according to formula (1) Effective time of interval:

among them,

Represents rounding down, μ _{new bwp} is the numerology of the BWP after the switch, μ _{old bwp} is the numerology of the BWP before the switch, X can be the maximum of the second value and the minimum value, such as: X=max(Y, Z). Y is the effective minimum scheduling interval. Z is related to the PDCCH demodulation capability of the terminal. The stronger the PDCCH demodulation capability of the terminal, the smaller Z may be, the weaker the PDCCH demodulation capability of the terminal, and the larger Z may be, for example, Z is equal to or greater than 1.

Scenario (2): A BWP activation timer (BWP inactivity timer) is set in the terminal. The BWP activation timer is used to instruct the terminal to switch from the activated BWP to the default BWP, or it can be described as the BWP activation timer for the terminal. A timer for activating the default BWP and deactivating the activated BWP.

Among them, the default BWP can be pre-configured. The duration of the BWP activation timer can be set as required and is not limited. Exemplarily, the value range of the duration of the BWP activation timer may be set to [2ms, 2560ms].

When the terminal receives downlink control information (DCI) for scheduling from a network device on an activated BWP, that is, when the terminal receives the scheduling, the terminal starts/restarts the BWP activation timer. When the BWP The activation timer expires, that is, the terminal does not receive the DCI for scheduling data in a considerable period of time, and the terminal switches from the activated BWP to the default BWP. Further, the terminal receives or sends data on the default BWP.

Scenario (3): The terminal receives radio resource control (RRC) signaling from a network device. The RRC signaling is used to instruct the terminal to switch from one BWP to another BWP, that is, the RRC signaling is used to instruct the terminal When performing BWP switching, the terminal performs BWP switching after receiving the RRC signaling.

The RRC signaling may include the index of the new BWP, and the terminal may switch the current working BWP of the terminal to the new BWP according to the index of the new BWP included in the RRC signaling. Further, the terminal receives or sends data on the new BWP.

Since the minimum available scheduling interval on each BWP configured by the network device for the terminal may be different, when the terminal is in any of the above three scenarios, the terminal will switch to the new BWP and enable the new BWP. The minimum available scheduling interval, for example, when the terminal is in scenario (1), the terminal determines the effective time of the minimum available scheduling interval on the new BWP according to formula (1) and its own PDCCH demodulation capability. However, when the terminal is in scene (2), the time from the timeout of the BWP timer to the completion of the handover of the BWP cannot be determined due to the timeout of the BWP timer, and the terminal cannot determine the new BWP in scene (2) according to formula (1). The minimum available scheduling interval. Similarly, when the terminal is in scenario (3), the RRC signaling used to indicate the BWP switching received by the terminal is carried in the PUSCH. The processing time of the terminal on the RRC signaling is different from the time for the terminal to demodulate the PDCCH. The processing time of the command is longer than that of the physical layer signaling, so the terminal cannot determine the minimum available scheduling interval on the new BWP in the scenario (3) according to formula (1), so that the terminal in the scenario (2) or the scenario (3) It is impossible to determine when to activate the minimum available scheduling interval on the new BWP, and it is impossible to determine the time domain location of the data scheduled on the new BWP according to the minimum available scheduling interval on the new BWP, and thus cannot be based on the scheduling interval on the new BWP. The time domain position of the data for data transmission.

To this end, the embodiment of the present application provides a method for determining the effective time to determine the minimum available schedule of the terminal on the new BWP when the terminal is in any of the above-mentioned scenarios (2) and (3). The effective time of the interval. Specifically, the method can refer to the description in the embodiment corresponding to FIG. 3 or FIG. 6.

In specific implementation, each network element shown in FIG. 1, such as a terminal and a network device, may adopt the composition structure shown in FIG. 2 or include the components shown in FIG. 2. 2 is a schematic diagram of the composition of a communication device 200 provided by an embodiment of the application. When the communication device 200 has the function of the terminal described in the embodiment of the application, the communication device 200 may be a terminal or a chip or on-chip in the terminal. system. When the communication device 200 has the function of the network device described in the embodiments of the present application, the communication device 200 may be a network device or a chip or a system on a chip in the network device.

As shown in FIG. 2, the communication device 200 may include a processor 201, a communication line 202 and a communication interface 203. Further, the communication device 200 may further include a memory 204. Among them, the processor 201, the memory 204, and the communication interface 203 may be connected through a communication line 202.

The processor 201 may be a central processing unit (CPU), a general-purpose processor network processor (NP), a digital signal processing (DSP), a microprocessor, or a microcontroller. , Programmable logic device (PLD) or any combination of them. The processor 201 may also be other devices with processing functions, such as circuits, devices, or software modules.

The communication line 202 is used to transmit information between the components included in the communication device 200.

The communication interface 203 is used to communicate with other devices or other communication networks. The other communication network may be Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. The communication interface 203 may be a radio frequency module, a transceiver, or any device capable of implementing communication. The embodiment of the present application only takes the communication interface 203 as a radio frequency module as an example for description. The radio frequency module may include an antenna, a radio frequency circuit, etc., and the radio frequency circuit may include a radio frequency integrated chip, a power amplifier, and the like.

The memory 204 is used to store instructions. Among them, the instruction may be a computer program.

The memory 204 may be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and/or instructions, or may be a random access memory (RAM) or Other types of dynamic storage devices that store information and/or instructions can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory, CD- ROM) or other optical disk storage, optical disk storage, magnetic disk storage media or other magnetic storage devices. Optical disk storage includes compressed optical discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.

It should be noted that the memory 204 may exist independently of the processor 201, or may be integrated with the processor 201. The memory 204 may be used to store instructions or program codes or some data. The memory 204 may be located in the communication device 200 or outside the communication device 200 without limitation. The processor 201 is configured to execute instructions stored in the memory 204 to implement the method for determining the effective time provided in the following embodiments of the present application.

In an example, the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2.

As an optional implementation manner, the communication device 200 includes multiple processors, for example, in addition to the processor 201 in FIG. 2, it may also include a processor 207.

As an optional implementation manner, the communication apparatus 200 further includes an output device 205 and an input device 206. Exemplarily, the input device 206 is a keyboard, a mouse, a microphone, or a joystick, and the output device 205 is a display screen, a speaker, or other devices.

It should be noted that the communication device 200 may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device with a similar structure in FIG. 2. In addition, the composition structure shown in FIG. 2 does not constitute a limitation on the communication device. In addition to the components shown in FIG. 2, the communication device may include more or less components than those shown in the figure, or combine certain components. , Or different component arrangements.

In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

The method for determining the effective time provided by the embodiment of the present application will be described below in conjunction with the communication system shown in FIG. 1. Among them, each device in the following embodiments may have the components shown in FIG. 2. Among them, the actions, terms, etc. involved in the various embodiments of the present application can be referred to each other, and are not limited. In the embodiments of the present application, the names of messages or parameter names in the messages that are exchanged between devices are just an example, and other names may also be used in specific implementations, which are not limited.

FIG. 3 is a method for determining the effective time provided by an embodiment of the application to determine the expiration of the BWP activation timer in the terminal, and the effective time of the minimum available scheduling interval on the default BWP; as shown in FIG. 3, the method may include :

Step 301: When the BWP activation timer expires, the terminal switches from the first BWP to the second BWP.

The BWP activation timer may be a timer configured by the network device for the terminal, and the function of the BWP activation timer is as described above. The terminal may be any terminal in FIG. 1, and the network device may be the network device in FIG. 1.

Exemplarily, the terminal may receive configuration information from the network device, and the configuration information may include indication information for setting the BWP activation timer and the duration of the BWP activation timer. Among them, the duration of the BWP activation timer can be set according to needs, such as: it can be based on the size of the data transmitted on the BWP, the number of repeated data transmissions on the BWP, the quality of service (QoS) of the data transmitted on the BWP, etc. Information settings are not restricted.

Among them, the first BWP may be a BWP currently activated by the terminal or a non-default BWP or a BWP currently working on the terminal, and the second BWP is a default BWP.

Among them, in an example, when there is only one radio frequency module in the terminal, and the radio frequency module can support the reception or transmission of one or more BWPs, switching the terminal from the first BWP to the second BWP may include: terminal switching radio frequency module The supported frequency bands are switched from the frequency band of the first BWP to the frequency band of the second BWP, and the parameters for receiving the first BWP are stopped, and the parameters for receiving the data transmitted on the second BWP are enabled. In another example, there are multiple radio frequency modules in the terminal, and each radio frequency module supports the reception or transmission of one BWP. Switching the terminal from the first BWP to the second BWP may include: turning off/deactivating/de-enabling for receiving The radio frequency module for the data transmitted on the first BWP, stop using the parameters used to receive the data transmitted on the first BWP, turn on/or activate/enable) the radio frequency module for receiving the data transmitted on the second BWP, and enable Parameters used to receive data transmitted on the second BWP.

Terminals with different processing capabilities require different completion times for switching from the first BWP to the second BWP. In the embodiment of the present application, the time required for the terminal to switch the BWP, that is, the BWP switching completion time, can be determined according to the numerology of the BWP and the processing capability of the terminal. Exemplarily, the corresponding relationship between the numerology of the BWP and the processing capability of the terminal can be pre-configured, and the terminal can determine the switch from the first BWP to the second BWP based on the corresponding relationship, the processing capability of the terminal, and the numerology of the second BWP. Complete time.

Among them, in the embodiment of the present application, the BWP switching completion time may also be referred to as BWP switch delay (BWP switch delay) or other names, which is not limited.

It should be noted that the BWP switching delay is not limited to the processing capability of the terminal, that is, it is not limited to the BWP switch delay depends on the UE capability. If the BWP switching is accompanied by a change in subcarrier spacing (SCS), the BWP switching delay The extension is determined by the largest switching delay corresponding to the subcarrier interval before and after the BWP switch, that is, if the BWP switch involves changing of SCS, the BWP switch delay is determined by the larger one between the SCS before BWP switch and after the SCS BWP switch.

For example, the following Table 4 shows the correspondence between the numerology of the BWP and the processing capability of the terminal. As shown in Table 4, when the processing capability of the terminal is type 1, the numerology for the BWP is {0, 1, 2, 3}, BWP is the time slot length {1ms, 0.5ms, 0.25ms, 0.125ms}, and the BWP switching completion time is {1 time slot, 2 time slots, 3 time slots, 6 time slots}; When the processing capability of the terminal is type 2, the numerology for BWP is {0, 1, 2, 3}, BWP is the time slot length of {1ms, 0.5ms, 0.25ms, 0.125ms}, and the BWP switching completion time is {3 Timeslots, 5 timeslots, 9 timeslots, 18 timeslots}; at this time, if the second BWP is BWP0, the numerology of BWP0 is 2, and the processing capability of the terminal is type 1, the terminal can check the table Fourth, determine that the completion time required for switching from the first BWP to BWP1 is 3 time slots.

Table Four

Step 302: The terminal determines the effective time of the smallest available scheduling interval on the second BWP.

Wherein, as mentioned above, when the second BWP is a downlink BWP, the minimum available scheduling interval on the second BWP is K0, and when the second BWP is an uplink BWP, the minimum available scheduling interval on the second BWP is K2.

Wherein, the effective time of the minimum available scheduling interval on the second BWP may be the time when the terminal starts to schedule data channels according to the minimum available scheduling interval on the second BWP, such as: PDSCH, PUSCH; or, the minimum available scheduling interval on the second BWP The time when it became effective. When the effective time of the minimum available scheduling interval on the second BWP arrives, or after the effective time of the minimum available scheduling interval on the second BWP arrives, and before the next BWP instruction arrives, the terminal can adjust its own functional modules, such as: radio frequency The module and the processing module for demodulating the PDCCH, etc., schedule the data channel according to the minimum available scheduling interval effective/used on the second BWP. For example, when the minimum available scheduling interval scheduling on the second BWP is greater than 0, that is, cross-slot scheduling, the terminal may include the effective time of the minimum available scheduling interval on the second BWP after the effective time of the minimum available scheduling interval on the second BWP , Turn off its own radio frequency module until the scheduled data arrives, in order to achieve the purpose of terminal energy saving.

Wherein, the minimum available scheduling interval on the second BWP can be determined according to any of the following methods (1) to (3): (1) The optional value of the minimum available scheduling interval of the second BWP configured by the network device for the terminal is 0 One, that is, the optional value of the minimum available scheduling interval of the second BWP is not configured, the terminal determines the minimum K0 value/K2 value in the TDRA table as the minimum available scheduling interval on the second BWP; (2) The terminal receives from the network device The first configuration information including the optional value of the minimum available scheduling interval of the second BWP determines the minimum available scheduling interval of the second BWP according to the optional value of the minimum available scheduling interval of the second BWP.

Wherein, the terminal determining the minimum available scheduling interval of the second BWP according to the optional value of the minimum available scheduling interval of the second BWP may include: the first configuration information includes only one minimum available scheduling interval, and the terminal includes the minimum available scheduling interval of the first configuration information. The available scheduling interval is determined as the minimum available scheduling interval on the second BWP. or,

The first configuration information includes multiple minimum available scheduling intervals, and the terminal determines the minimum available scheduling interval with the largest value or the smallest value among the multiple minimum available scheduling intervals as the minimum available scheduling interval on the second BWP, or The minimum available scheduling interval includes a first used value, and the terminal determines the first used value as the minimum available scheduling interval on the second BWP.

Among them, the first used value may be pre-configured to the terminal by the network device, and the first used value may also be referred to as a default value. The multiple minimum available scheduling intervals included in the first configuration information correspond to index values, and the first used value may be the minimum available scheduling interval with the largest index or the smallest index among the multiple minimum available scheduling intervals.

Exemplarily, the BWP activation timer expires in time slot n, where n is an integer greater than or equal to 0, the effective time of the smallest available scheduling interval on the second BWP is not earlier than the Qth time slot, and Q can be based on time slot n determine.

Wherein, the timeout of the BWP activation timer in time slot n may include: the BWP activation timer timeout at the start symbol position of time slot n or the BWP activation timer timeout at the end symbol position of time slot n, which is not limited.

Wherein, the time slot described in the embodiment of the present application may include multiple symbols, for example, a time slot may include 12 or 14 symbols. When a time slot includes multiple symbols, the effective time of the minimum available scheduling interval on the second BWP is no earlier than the Qth time slot includes: the effective time of the minimum available scheduling interval on the second BWP is no earlier than the Qth time slot The start symbol of the symbol is not earlier than any symbol in the Qth time slot or not earlier than the end symbol of the Qth time slot, etc., or when the time length of a symbol is tens of us, the second BWP The effective time of the minimum available scheduling interval is a symbol in the Qth time slot, such as the starting time of the start symbol or any other symbol, or the effective time of the minimum available scheduling interval on the second BWP is the Qth time Any other time of a certain symbol in the slot, such as: the qth us in a certain symbol, q is an integer, etc.

In one example, Q is equal to

Represents rounding down, μ _T is the numerology of the second BWP, μ ₁ is the numerology of the first BWP, T _{BWPswitchingDalay} is the completion time of the terminal switching from the first BWP to the second BWP, that is, when the first BWP is working, the BWP is activated The time slot index when the timer expires is passed

It is converted into the time slot index when the BWP activation timer expires when the second BWP works, and the minimum available scheduling interval on the second BWP takes effect after the BWP activation timer expires and when the BWP switch is completed.

Among them, T _{BWPswitchingDalay} can be confirmed by referring to Table 4, so I won't repeat it.

In another example, Q is equal to

Among them, μ _T is the numerology of the second BWP, and μ ₁ is the numerology of the first BWP. In the embodiments of this application,

It can be called a scaling factor, because the length of the time slot corresponding to different BWPs may be different, so in order to ensure that the time slot index of the same time slot on the BWP before and after the switch is the same, the scaling factor needs to be used when the BWP switch occurs. The factor converts the time slot index on the BWP before the handover to the time slot index on the BWP after the handover.

Wherein, X can be the BWP switching completion time or the BWP switch delay, and can also be a time slot value determined according to the subcarrier, which is not limited.

Taking X as the BWP switch delay, X as an integer number of time slots, the default BWP of the terminal is BWP0, and the numerology of BWP0 is 1 as an example. As shown in Figure 4a, suppose that the currently activated BWP of the terminal is BWP1, and the numerology of BWP1 is 1. If the BWP activation timer expires in time slot n, as shown in Figure 4a, the terminal switches from BWP1 to BWP0, and according to

Make sure that the time slot on BWP1 is aligned with the time slot on BWP. For the same time slot, the index of the time slot on BWP0 and BWP1 is the same, without conversion, and then according to the formula

It is determined that the effective time of the minimum available scheduling interval on BWP0 is not earlier than the n+Xth time slot, such as the starting position of the n+Xth time slot.

For another example, as shown in Figure 4b, if the currently activated BWP of the terminal is BWP2, the numerology of BWP2 is 0, and the BWP activation timer expires in time slot n, then as shown in Figure 4b, the terminal switches from BWP2 to BWP0. At the same time according to

It is determined that for the same time slot, twice the time slot index of this time slot on BWP2 is the time slot index of this time slot on BWP0. Therefore, according to the formula

It is determined that the effective time of the minimum available scheduling interval on BWP0 is not earlier than the 2n+Xth time slot, such as the start position of the 2n+Xth time slot.

Wherein, when X is a time slot value determined according to the subcarrier, the determination of X according to the subcarrier interval of the second BWP may include: X=max(Y, Z). The formula X=max(Y, Z) can be the formula for determining X described in the above scenario (1), and other formulas capable of determining X can also be reused. It should be noted that the formula X=max(Y, Z) described in the embodiment of the present application can be applied to other scenarios in addition to scenario (2) and scenario (3), and is not limited.

Exemplarily, Y is equal to 0, and Z is determined according to the subcarrier interval of the second BWP.

When the subcarrier spacing of the second BWP is 15KHz, Z is equal to 1; when the subcarrier spacing of the second BWP is 30KHz, Z is equal to 1; when the subcarrier spacing of the second BWP is 60KHz, Z is equal to 1 or 2; When the subcarrier spacing of the second BWP is 120KHz, Z is equal to 2.

In another example, Q is equal to

Wherein, the determination of X according to the subcarrier interval of the first BWP may include: X=max(Y, Z), Y is equal to 0, and Z is determined according to the subcarrier interval of the first BWP.

Exemplarily, when the subcarrier interval of the first BWP is 15KHz, Z is equal to 1; when the subcarrier interval of the first BWP is 30KHz, Z is equal to 1; when the subcarrier interval of the first BWP is 60KHz, Z is equal to 1 or 2; when the subcarrier spacing of the first BWP is 120KHz, Z is equal to 2.

Based on the method shown in Figure 3, the terminal can determine the effective time of the minimum available scheduling interval on the new BWP when the BWP activation timer expires and the BWP is switched. How to determine the new BWP activation timer timeout scenario The effective time of the minimum available scheduling interval on the BWP provides a feasible solution, and at the same time, avoids the problem of inconsistent understanding of the time when the minimum available scheduling interval on the new BWP starts to be activated between the network side and the terminal.

Further, in the first implementation manner of the method shown in FIG. 3, the method further includes:

On the second BWP, the terminal receives the PDCCH from the network device, demodulates the PDCCH, and turns on or off the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

In this way, the terminal can turn on the radio frequency module of the terminal in real time during simultaneous slot scheduling to ensure the smooth transmission of the data channel. When scheduling across time slots, the terminal can turn off the radio frequency module of the terminal before transmitting data on the data channel, so as to reduce the power consumption of the terminal and realize the effect of energy saving of the terminal.

For example, as shown in Figure 4c, the terminal receives the PDCCH transmission on the default BWP during the t1 period. As shown on the left side of Figure 4c, the minimum available scheduling interval on the default BWP is 0. The terminal knows that there is simultaneous slot scheduling in the current time slot. To avoid data and/or signal loss, after receiving the PDCCH, the terminal must buffer the data and/or signal while decoding the PDCCH. As shown on the left side of Figure 4c, during the t2 period, the terminal needs to turn on its own radio module at all times to buffer the data And/or signal. If as shown on the right side of Figure 4c, the minimum available scheduling interval on the default BWP is greater than 0, the terminal can know that the PDCCH and the data channel are scheduled across time slots, and there must be no data channel scheduled by the PDCCH in the current time slot, then the terminal After receiving the PDCCH, in the process of decoding the PDCCH, you can turn off your own radio module without buffering any data and/or signals to achieve the effect of energy saving. As shown in the right side of Figure 4c, the shaded part corresponding to the t2 period is the terminal saving energy of.

In the following, in conjunction with the scenario in which a user browses a webpage through a mobile phone as shown in Figure 5, the terminal is a mobile phone, a network device is a base station, and the terminal works on BWP1. The default BWP in the terminal is BWP0, and the BWP activation timer in the terminal is set to 2560ms. The minimum available scheduling interval on BWP0 is K0=1 as an example, and the method shown in FIG. 3 is described.

As shown in Figure 5, after the base station establishes a radio resource control (RRC) connection with the mobile phone, the base station sends a TDRA form to the mobile phone and instructs the mobile phone to work in BWP1.

When a user requests to browse hot news through a mobile phone, the mobile phone requests transmission resources from the base station. Under the instruction of DCI1 for scheduling PUSCH sent by the base station, according to the user's browsing hot news request, BWP1 sends a download request to the base station to request downloading hotspots. News, and start the BWP activation timer at the same time;

After the base station receives the request to download the hot news, it obtains the hot news from the server and sends it to the mobile phone;

The mobile phone receives the hot news returned by the base station, and presents the received hot news to the user for browsing;

When the user is browsing the hot news on the mobile phone, the mobile phone does not receive any scheduling from the base station. At this time, because the mobile phone does not receive the scheduling of the base station for too long, reaching 2561ms, the BWP activation timer expires, and the mobile phone switches from BWP1 to BWP0, and determine the effective time of the minimum available time slot interval on BWP0 according to the method shown in Figure 3;

Subsequently, when the base station pushes the weather forecast to the mobile phone, the mobile phone receives the DCI2 used to schedule the PDSCH including the weather forecast in the time slot 1, and the mobile phone uses the minimum available time slot interval K0=1 of the BWP0, and the time slot 2 or the time slot 2 on the BWP0 A certain time slot after time slot 2 receives the PDSCH sent by the base station, and the received information, such as: today's weather: light rain 22 degrees, please bring an umbrella to the user.

The methods shown in FIG. 3 and FIG. 5 take as an example how the terminal determines the minimum available scheduling interval on the BWP after the handover when the BWP activation timer expires. In another method, the embodiment of the present application also provides a method for the terminal to determine the minimum available scheduling interval on the BWP after the handover in a scenario where the terminal is instructed to switch the BWP through RRC signaling. Specifically, the method can be referred to as shown in Figure 6:

Fig. 6 is a method for determining the effective time provided by an embodiment of the application, so as to indicate the BWP of the terminal to be switched according to the RRC signaling, and to determine the effective time of the minimum available scheduling interval on the BWP after the handover; as shown in Fig. 3 , The method can include:

Step 601: The network device sends RRC signaling to the terminal.

The terminal may be any terminal in FIG. 1, and the network device may be the network device in FIG. 1.

The RRC signaling may be used to instruct the terminal to switch from the first BWP to the second BWP, the RRC signaling may carry the index of the second BWP, and the index of the second BWP may be used to indicate the second BWP.

Exemplarily, the RRC signaling is carried in the PDSCH and sent to the terminal. For example, the network device sends the PDSCH to the terminal, and the PDSCH includes RRC signaling.

Exemplarily, when the network device determines that the data transmitted on the first BWP is greater than the preset threshold, that is, the first BWP is congested or overloaded, the network device sends RRC signaling to the terminal to instruct the terminal to switch from the first BWP to the first BWP. Two BWP.

Step 602: The terminal receives RRC signaling from the network device.

Exemplarily, the terminal receives the PDSCH carrying the RRC signaling from the network device, and obtains the RRC signaling from the PDSCH.

Step 603: The terminal switches from the first BWP to the second BWP according to the RRC signaling, and determines the effective time of the smallest available scheduling interval on the second BWP.

Among them, the first BWP and the second BWP are non-default BWPs in the terminal, or the first BWP is the default BWP and the second BWP is the non-default BWP, or the first BWP is the non-default BWP, and the second BWP is the default BWP .

Wherein, the terminal switching from the first BWP to the second BWP may include: turning off (or deactivating or disabling) the radio frequency module and parameters used to receive data transmitted on the first BWP, and turning on (or activating or enabling) The radio frequency module, parameters, etc. used to receive the data transmitted on the second BWP. Exemplarily, the terminal may refer to the description in step 301 to determine the completion time of switching from the first BWP to the second BWP, which is not limited.

The method for determining the minimum available scheduling interval on the second BWP and the related definition of the effective time of the minimum available scheduling interval on the second BWP can be referred to in step 302, and will not be repeated.

Exemplarily, the terminal may determine the effective time of the minimum available scheduling interval on the second BWP in any of the following manners.

Manner 1: The RRC signaling is carried in the PDSCH. The PDSCH is located in time slot n, where n is an integer greater than or equal to 0, and the effective time of the smallest available scheduling interval on the second BWP is no earlier than the Qth time slot.

Among them, the effective time of the minimum available scheduling interval on the second BWP is not earlier than the start symbol of the Qth time slot or not earlier than any symbol in the Qth time slot or not earlier than the end of the Qth time slot Symbols, etc., or, when the time length of a symbol is tens of us, the effective time of the minimum available scheduling interval on the second BWP is a symbol in the Qth time slot, such as the start symbol or the beginning of any other symbol The starting time, or the effective time of the smallest available scheduling interval on the second BWP is any time of a certain symbol in the Qth time slot, such as: the qth us in a certain symbol, where q is an integer, etc.

In one example, Q is equal to

That is, after the terminal receives the RRC signaling, the minimum available scheduling interval on the second BWP takes effect when the BWP handover is completed.

Among them, T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling. Exemplarily, the time for the terminal to process RRC signaling may be 10 ms.

Wherein, T _{BWPswitchingDalay} is the completion time for the terminal to switch from the first BWP to the second BWP, and the _method for determining T BWPswitchingDalay can refer to the description in step 301, which will not be repeated.

Wherein, the length of the time slot is the length of the previous time slot of the second BWP. Among them, the length of a time slot on the second BWP can be determined by looking up Table 1. For example, as shown in Table 1, if the subcarrier interval of the second BWP is 15 kHz, then the length of a time slot on the second BWP is 1 ms.

In another example, Q is equal to n+X, and X=max(Y, Z).

Among them, Y is equal to 0, Z is equal to

Among them, T _{RRCprocessingDalay} and the length of the time slot are as described above, and will not be repeated.

In another example, RRC signaling is carried in PDSCH, PDSCH is scheduled by PDCCH, PDCCH is located in time slot m, and the effective time of the smallest available scheduling interval on the second BWP is not earlier than the Rth time slot,

Among them, m is an integer greater than or equal to 0.

Among them, the effective time of the smallest available scheduling interval on the second BWP is not earlier than the start symbol of the Rth time slot or not earlier than any symbol in the Rth time slot or not earlier than the end of the Rth time slot Symbol, etc., or, when the time length of a symbol is tens of us, the effective time of the smallest available scheduling interval on the second BWP is a symbol in the Rth time slot, such as the start symbol or the beginning of any other symbol The start time, or the effective time of the smallest available scheduling interval on the second BWP is any other time of a certain symbol in the Rth time slot.

Among them, R is equal to m+X, and X is equal to

Among them, Y is the minimum available scheduling interval currently in effect for the terminal.

Among them, _{the relevant description of TRRCprocessingDalay} and the length of the time slot can refer to the above, and will not be repeated.

Based on the method shown in Figure 6, the terminal can switch the BWP after receiving the RRC signaling for instructing the BWP switching, and determine the effective time of the minimum available scheduling time interval on the new BWP, to instruct the terminal to switch the BWP for the RRC signaling In the scenario, how the terminal determines the effective time of the minimum available scheduling interval on the new BWP provides a feasible solution, which avoids the problem of inconsistent understanding between the network side and the terminal on the start of the minimum available scheduling interval on the new BWP .

Further, in the first implementation manner of the method shown in FIG. 6, the method further includes:

For ease of understanding, the following describes the method shown in FIG. 6 with reference to the scenario in which a user browses a webpage through a mobile phone as shown in FIG. 7, taking the terminal as a mobile phone, the network device as the base station, and the terminal working on the BWP1 as an example.

As shown in Figure 7, after the base station establishes an RRC connection with the mobile phone, the base station sends a TDRA form to the mobile phone and instructs the mobile phone to work in BWP1.

When a user requests to browse a webpage through a mobile phone, the mobile phone requests transmission resources from the base station. Under the instruction of the DCI1 sent by the base station for scheduling PUSCH, the BWP1 sends a browse request to the base station according to the user's request;

The base station receives the browse request, downloads the web page information from the server, and sends it to the mobile phone through BWP1;

The mobile phone receives the web page information returned by the base station, and presents the received web page information to the user for browsing;

When multiple or a large number of users are receiving/sending data on BWP1, which overloads the data transmitted on BWP1, the base station sends RRC signaling to the mobile phone to notify the mobile phone to switch BWP, and switch the mobile phone’s working BWP from BWP1 to other relatively idle BWP, such as: BWP2;

The user receives the RRC signaling, switches from BWP1 to BWP2 according to the instructions of the RRC signaling, and determines the effective time of the minimum available time slot interval on BWP2 according to the method shown in Figure 6;

Subsequently, when the base station pushes the weather forecast to the mobile phone, the mobile phone receives DCI2 used to schedule the PDSCH including the weather forecast in time slot 1, and the mobile phone uses the minimum available time slot interval K0=2 of BWP2 in time slot 3 or time slot 3. After receiving the PDSCH sent by the base station in a certain time slot, and the received information, such as: today's weather: light rain 22 degrees, please bring an umbrella to present to the user.

The foregoing mainly introduces the solution provided by the embodiment of the present application from the perspective of interaction between various nodes. It can be understood that, in order to realize the above-mentioned functions, each node, such as a terminal, a network device, etc., includes a hardware structure and/or software module corresponding to each function. Those skilled in the art should easily realize that in combination with the algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiments of the present application may divide functional modules of terminals, network devices, etc. according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

FIG. 8 shows a structural diagram of a communication device 80. The communication device 80 may be a terminal, or a chip in the terminal, or a system-on-chip. The communication device 80 may be used to perform the functions of the terminal involved in the foregoing embodiments. As an implementable manner, the communication device 80 shown in FIG. 8 includes: a switching unit 801 and a determining unit 802; further, the communication device 80 may also include a receiving unit 803.

In an example, the switching unit 801 is configured to switch the BWP of the terminal from the first BWP to the second BWP when the BWP activation timer used to instruct the terminal to switch from the activated BWP to the default BWP expires. For example, the switching unit 801 may support the communication device 80 to perform step 301.

The determining unit 802 is configured to determine the effective time of the smallest available scheduling interval on the second BWP. For example, the determining unit 802 may support the communication device to perform step 302.

In a possible design, the BWP activation timer timeout includes: the BWP activation timer expires in time slot n, where n is an integer greater than or equal to 0; the effective time of the smallest available scheduling interval on the second BWP is not earlier than the Qth Time slots; Q can be determined according to time slot n.

In a possible design, Q is equal to

Where μ _T is the numerology of the system parameter of the second BWP, μ ₁ is the numerology of the first BWP, and T _{BWPswitchingDalay} is the completion time for the terminal to switch from the first BWP to the second BWP.

In a possible design, Q is equal to

In another example, the receiving unit 803 is configured to receive RRC signaling from the network device for instructing the terminal to switch from the first BWP to the second BWP. For example, the receiving unit 803 is configured to support the communication device 80 to perform step 602.

The switching unit 801 is configured to switch from the first BWP to the second BWP according to RRC signaling. For example, the switching unit 801 may be used to support the communication device 80 to perform the action of switching the BWP in step 603.

The determining unit 802 is configured to determine the effective time of the smallest available scheduling interval on the second BWP. For example, the determining unit 802 may be used to support the communication device 80 to perform the action of determining the effective time in step 603.

In a possible design, the RRC signaling is carried in the PDSCH, the PDSCH is located in time slot n, where n is an integer greater than or equal to 0, and the effective time of the smallest available scheduling interval on the second BWP is no earlier than the Qth time slot.

In a possible design, Q is equal to

In a possible design, Q is equal to n + X, X = max (Y, Z), where Y is equal to 0, and Z is equal to

In a possible design, RRC signaling is carried in PDSCH, PDSCH is scheduled by PDCCH, PDCCH is located in time slot m, m is an integer greater than or equal to 0, and the effective time of the smallest available scheduling interval on the second BWP is not earlier than the first R time slots, R is equal to m+X, X is equal to

Y is the minimum available scheduling interval currently in effect for the terminal, T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the length of the time slot is the length of the previous time slot of the second BWP.

Specifically, all relevant content of each step involved in the method embodiment shown in FIG. 3 or FIG. 6 can be cited in the functional description of the corresponding functional module, and will not be repeated here. The communication device 80 is used to perform the function of the terminal in the method for determining the effective time shown in FIG. 3 or FIG. 6, and therefore can achieve the same effect as the method for determining the effective time described above.

As yet another achievable manner, the communication device 80 shown in FIG. 8 includes: a processing module and a communication module. The processing module is used to control and manage the actions of the communication device 80. For example, the processing module can integrate the functions of the switching unit 801 and the determining unit 802, and can be used to support the communication device 80 to perform steps 302, 603 and the technologies described herein. Other processes. The communication module may integrate the functions of the receiving unit 803, and may be used to support the communication device 80 to perform step 602 and communicate with other network entities, such as the communication with the functional module or network entities shown in FIG. 2. The communication device 80 may also include a storage module for storing program codes and data of the communication device 80.

Among them, the processing module may be a processor or a controller. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on. The communication module can be a transceiver circuit or a communication interface. The storage module may be a memory. When the processing module is a processor, the communication module is a communication interface, and the storage module is a memory, the communication device 80 involved in the embodiment of the present application may be the communication device shown in FIG. 3.

FIG. 9 is a structural diagram of a communication system provided by an embodiment of the application. As shown in FIG. 9, the communication system may include: a terminal 90 and a network device.

In a possible design, the terminal 90 has the function of the communication device 80 shown in FIG. 9.

For example, when the BWP activation timer used to indicate switching from the activated BWP to the default BWP expires, the terminal 90 is used to switch from the first BWP to the second BWP, and determine the effective time of the smallest available scheduling interval on the second BWP.

For another example, the terminal 90 is configured to receive RRC signaling from the network device for instructing the terminal 90 to switch from the first BWP to the second BWP, switch from the first BWP to the second BWP according to the RRC signaling, and determine the second BWP. The effective time of the smallest available scheduling interval on the BWP.

Specifically, in this possible design, the specific implementation process of the terminal 90 may refer to the execution process of the terminal involved in the method embodiment of FIG. 3 or FIG. 6, which will not be repeated here.

Based on the communication system shown in FIG. 9, the terminal 90 can switch the BWP when the BWP activation timer expires or RRC signaling indicates the BWP switch, and determine the effective time of the minimum available scheduling interval on the new BWP, which is the BWP activation timing It provides a feasible solution for determining the effective time of the minimum available scheduling interval on the new BWP in the scenario where the device timeout or RRC signaling indicates the BWP handover, and avoids the minimum available scheduling interval on the new BWP between the network side and the terminal 90 The inconsistency of understanding of the time to start the application

The embodiment of the present application also provides a computer-readable storage medium. All or part of the processes in the foregoing method embodiments may be completed by a computer program instructing relevant hardware. The program may be stored in the foregoing computer-readable storage medium. When the program is executed, it may include processes as in the foregoing method embodiments. . The computer-readable storage medium may be the terminal device of any of the foregoing embodiments, such as an internal storage unit including a data sending end and/or a data receiving end, such as a hard disk or memory of the terminal device. The computer-readable storage medium may also be an external storage device of the terminal device, such as a plug-in hard disk, a smart media card (SMC), or a secure digital (SD) card equipped on the terminal device. Flash card, etc. Further, the aforementioned computer-readable storage medium may also include both an internal storage unit of the aforementioned terminal device and an external storage device. The aforementioned computer-readable storage medium is used to store the aforementioned computer program and other programs and data required by the aforementioned terminal device. The above-mentioned computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

In combination with the above, this application also provides the following embodiments:

Embodiment 1. A method for determining the effective time, which includes:

When the bandwidth part BWP activation timer expires, the terminal switches from the first BWP to the second BWP, where the BWP activation timer is used to instruct the terminal to switch from the activated BWP to the default BWP;

The terminal determines the effective time of the smallest available scheduling interval on the second BWP.

Embodiment 2. The method according to embodiment 1, wherein the expiration of the BWP activation timer includes:

The BWP activation timer expires in time slot n, where n is an integer greater than or equal to 0;

The effective time of the smallest available scheduling interval on the second BWP is not earlier than the Qth time slot;

Embodiment 3. The method according to embodiment 2, wherein:

The Q is equal to

Wherein the μ _T is the numerology of the system parameter of the second BWP, the μ ₁ is the numerology of the first BWP, and the T _{BWPswitchingDalay} is the terminal switching from the first BWP to the second BWP The completion time.

Embodiment 4. The method according to embodiment 3, wherein:

The T _{BWPswitchingDalay is} determined according to the processing capability of the terminal, the numerology of the second BWP, and a first correspondence relationship; wherein, the first comparison relationship includes the correspondence between the numerology of the BWP, the processing capability of the terminal, and the BWP switching completion time relationship.

Embodiment 5. The method according to embodiment 2, wherein:

The Q is equal to

The μ _T is the numerology of the second BWP, the μ ₁ is the numerology of the first BWP, and the X is determined according to the subcarrier interval of the second BWP.

Embodiment 6. The method according to embodiment 2, wherein:

The Q is equal to

The μ _T is the numerology of the second BWP, the μ ₁ is the numerology of the first BWP, and the X is determined according to the subcarrier interval of the first BWP.

Embodiment 7. The method according to embodiment 5 or embodiment 6, wherein:

The X=max(Y, Z), wherein the Y is equal to 0, and the Z is determined according to the subcarrier interval.

Embodiment 8. The method according to embodiment 7, wherein:

When the sub-carrier spacing is 15 kHz KHz, the Z is equal to 1,

When the subcarrier spacing is 30KHz, the Z is equal to 1,

When the subcarrier spacing is 60KHz, the Z is equal to 1 or 2,

When the subcarrier spacing is 120KHz, the Z is equal to 2.

Embodiment 9. The method according to any one of Embodiment 1 to Embodiment 8, wherein:

The BWP activation timer is configured to the terminal by the network device.

Embodiment 10. The method according to any one of Embodiment 1 to Embodiment 9, wherein:

The first BWP is a non-default BWP, and the second BWP is a default BWP.

Embodiment 11. The method according to any one of Embodiment 1 to Embodiment 10, wherein:

Receiving, by the terminal, first configuration information from a network device, where the first configuration information includes an optional value of the minimum available scheduling interval of the second BWP;

The terminal determines the minimum available scheduling interval of the second BWP according to the optional value of the minimum available scheduling interval of the second BWP.

Embodiment 12. The method according to any one of Embodiment 1 to Embodiment 11, wherein the method further includes:

The terminal receives the physical downlink control channel PDCCH from the network device on the second BWP;

The terminal demodulates the PDCCH, and turns on or turns off the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

Embodiment 13. A method for determining the effective time, wherein the method includes:

The terminal receives radio resource control RRC signaling from the network device, where the RRC signaling is used to instruct the terminal to switch from the first BWP to the second BWP,

The terminal switches from the first BWP to the second BWP according to the RRC signaling, and determines the effective time of the smallest available scheduling interval on the second BWP.

Embodiment 14. The method according to embodiment 13, wherein the RRC signaling is carried in a physical downlink shared channel PDSCH, the PDSCH is located in time slot n, and the n is an integer greater than or equal to 0,

The effective time of the smallest available scheduling interval on the second BWP is not earlier than the Qth time slot.

Embodiment 15. The method of embodiment 14, wherein:

The Q is equal to

Wherein, the T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, the T _{BWPswitchingDalay} is the completion time for the terminal to switch from the first BWP to the second BWP, and the time slot length is the The length of a time slot on the second BWP.

Embodiment 16. The method of embodiment 15, wherein:

Embodiment 17. The method according to embodiment 14, wherein:

The Q is equal to n+X, the X=max(Y, Z), where the Y is equal to 0, and the Z is equal to

Wherein, _{TRRCprocessingDalay} is the time for the terminal to process RRC signaling, and the length of the time slot is the length of the previous time slot of the second BWP.

Embodiment 18. The method according to embodiment 13, wherein the RRC signaling is carried in the PDSCH, the PDSCH is scheduled by the PDCCH, the PDCCH is located in the time slot m, and the m is an integer greater than or equal to 0 ,

The effective time of the smallest available scheduling interval on the second BWP is not earlier than the Rth time slot,

The R is equal to m+X, and the X is equal to

The Y is the minimum available scheduling interval currently in effect for the terminal, the _{TRRCprocessingDalay} is the time for the terminal to process RRC signaling, and the length of the time slot is the length of the previous time slot of the second BWP.

Embodiment 19. The method according to any one of Embodiment 15 to Embodiment 18, wherein:

The time for the terminal to process RRC signaling is 10 milliseconds.

Embodiment 20. The method according to any one of embodiments 13 to 19, wherein the method further comprises:

Embodiment 21. The method according to any one of Embodiment 13 to Embodiment 20, wherein the method further comprises:

Embodiment 22. A communication device, including:

The switching unit is configured to switch from the first BWP to the second BWP when the BWP activation timer of the bandwidth part expires, where the BWP activation timer is used to instruct the terminal to switch from the activated BWP to the default BWP;

The determining unit is configured to determine the effective time of the minimum available scheduling interval on the second BWP.

Embodiment 23. The communication device according to embodiment 22, wherein the expiration of the BWP activation timer includes:

Embodiment 24. The communication device according to embodiment 23, wherein:

The Q is equal to

Wherein the μ _T is the numerology of the system parameter of the second BWP, the μ ₁ is the numerology of the first BWP, and the T _{BWPswitchingDalay} is the completion time of switching from the first BWP to the second BWP .

Embodiment 25. The communication device according to embodiment 24, wherein:

The T _{BWPswitchingDalay is} determined according to the processing capability of the terminal, the numerology of the second BWP, and the first correspondence; wherein, the first comparison relationship includes the correspondence between the numerology of the BWP, the processing capability of the terminal, and the BWP switching completion time.

Embodiment 26. The communication device according to embodiment 23, wherein:

The Q is equal to

Embodiment 27. The communication device according to embodiment 23, wherein:

The Q is equal to

Embodiment 28. The communication device according to embodiment 26 or embodiment 27, wherein:

Embodiment 29. The communication device according to embodiment 28, wherein:

When the sub-carrier spacing is 15 kHz KHz, the Z is equal to 1,

When the subcarrier spacing is 30KHz, the Z is equal to 1,

When the subcarrier spacing is 60KHz, the Z is equal to 1 or 2,

When the subcarrier spacing is 120KHz, the Z is equal to 2.

Embodiment 30. The communication device according to any one of Embodiment 22 to Embodiment 29, wherein:

The BWP activation timer is configured to the terminal by the network device.

Embodiment 31. The communication device according to any one of Embodiment 22 to Embodiment 30, wherein:

The first BWP is a non-default BWP, and the second BWP is a default BWP.

Embodiment 32. The communication device according to any one of embodiment 22 to embodiment 31, wherein the communication device further includes: a receiving unit;

The receiving unit is configured to receive first configuration information from a network device, where the first configuration information includes an optional value of the minimum available scheduling interval of the second BWP;

The determining unit is further configured to determine the minimum available scheduling interval of the second BWP according to the optional value of the minimum available scheduling interval of the second BWP.

Embodiment 33. The communication device according to any one of Embodiment 22 to Embodiment 32, wherein the communication device further includes: a receiving unit;

The receiving unit is configured to receive a PDCCH from a network device on the second BWP;

The determining unit is configured to demodulate the PDCCH, and turn on or turn off the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

Embodiment 34. A communication device, wherein the communication device includes:

The receiving unit is configured to receive radio resource control RRC signaling from a network device, where the RRC signaling is used to indicate handover from the first BWP to the second BWP,

A switching unit, configured to switch from the first BWP to the second BWP according to the RRC signaling;

Embodiment 35. The communication device according to embodiment 34, wherein the RRC signaling is carried in a physical downlink shared channel PDSCH, the PDSCH is located in the time slot n, and the n is an integer greater than or equal to 0,

Embodiment 36. The communication device according to embodiment 35, wherein:

The Q is equal to

Wherein, the T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, the T _{BWPswitchingDalay} is the completion time of switching from the first BWP to the second BWP, and the time slot length is the last one of the second BWP The length of the time slot.

Embodiment 37. The communication device according to embodiment 36, wherein:

Embodiment 38. The communication device according to embodiment 35, wherein:

Wherein, _{TRRCprocessingDalay} is the time for processing RRC signaling, and the length of the time slot is the length of the previous time slot of the second BWP.

Embodiment 39. The communication device according to embodiment 34, wherein the RRC signaling is carried in the PDSCH, the PDSCH is scheduled by the PDCCH, the PDCCH is located in the time slot m, and the m is greater than or equal to 0 Integer,

The R is equal to m+X, and the X is equal to

The Y is the currently effective minimum available scheduling interval, the _{TRRCprocessingDalay} is the time for processing RRC signaling, and the time slot length is the length of the previous time slot of the second BWP.

Embodiment 40. The communication device according to any one of embodiment 36 to embodiment 39, wherein:

The time for processing RRC signaling is 31 milliseconds.

Embodiment 41. The communication device according to any one of Embodiment 34 to Embodiment 40, wherein:

The receiving unit is further configured to receive first configuration information from a network device, where the first configuration information includes an optional value of the minimum available scheduling interval of the second BWP;

Embodiment 42 The communication device according to any one of Embodiment 34 to Embodiment 41, wherein:

The receiving unit is further configured to receive a physical downlink control channel PDCCH from a network device on the second BWP;

The determining unit is further configured to demodulate the PDCCH, and turn on or turn off the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

Embodiment 43: A communication system, wherein the communication system includes:

Network equipment, configured to send radio resource control RRC signaling to the terminal, where the RRC signaling is used to indicate handover from the first BWP to the second BWP;

The terminal is configured to receive RRC signaling from a network device, and according to the RRC signaling, from the first BWP

Switch to the second BWP, and determine the effective time of the smallest available scheduling interval on the second BWP.

Embodiment 44. The communication system according to embodiment 43, wherein the RRC signaling is carried in a physical downlink shared channel PDSCH, the PDSCH is located in time slot n, and n is an integer greater than or equal to 0,

Embodiment 45. The communication system according to embodiment 44, wherein:

The Q is equal to

Embodiment 46. The communication system according to embodiment 45, wherein:

Embodiment 47. The communication system according to embodiment 44, wherein:

Embodiment 48. The communication system according to embodiment 43, wherein the RRC signaling is carried in the PDSCH, the PDSCH is scheduled by the PDCCH, the PDCCH is located in the time slot m, and the m is greater than or equal to 0 Integer,

The R is equal to m+X, and the X is equal to

Embodiment 49. The communication system according to any one of Embodiment 45 to Embodiment 48, wherein:

The time for processing RRC signaling is 31 milliseconds.

Embodiment 50. The communication system according to any one of embodiment 43 to embodiment 49, wherein:

The network device is further configured to send first configuration information to the terminal, where the first configuration information includes an optional value of the minimum available scheduling interval of the second BWP;

The terminal is further configured to receive first configuration information from the network device, and determine the minimum available scheduling interval of the second BWP according to the optional value of the minimum available scheduling interval of the second BWP.

Embodiment 51. The communication system according to any one of Embodiment 43 to Embodiment 50, wherein:

The network equipment is also used to send PDCCH to the terminal;

The terminal is further configured to receive a PDCCH from a network device on the second BWP, demodulate the PDCCH, and turn on or turn off the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

Embodiment 52. A communication device, wherein the communication device includes a processor and a memory, and instructions are stored in the memory; when the instructions are executed by the processor, the implementation is as in any of the embodiments 1 to 12. One of the method for determining the effective time or the method for determining the effective time as described in any one of Embodiment 13 to Embodiment 21.

Embodiment 53: A computer-readable storage medium, wherein the computer-readable storage medium includes computer instructions, and when the computer instructions are executed on a computer, the computer is caused to execute any one of Embodiment 1 to Embodiment 12. The method for determining the effective time or the method for determining the effective time as described in any one of Embodiment 13 to Embodiment 21.

Embodiment 63. A computer program product, wherein the computer program product includes computer instructions that, when the computer instructions run on a computer, cause the computer to execute the determination described in any one of Embodiment 1 to Embodiment 12. The effective time method or the method for determining the effective time as described in any one of Embodiment 13 to Embodiment 21.

Embodiment 64. A chip system, including: the chip system includes a processor and a memory, and instructions are stored in the memory; when the instructions are executed by the processor, the implementation is as in Embodiment 1 The method for determining the effective time according to any one of 12 or the method for determining the effective time according to any one of Embodiment 13 to Embodiment 21.

It should be noted that the terms "first" and "second" in the specification, claims, and drawings of the present application are used to distinguish different objects, rather than to describe a specific sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or units, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment.

It should be understood that in this application, "at least one (item)" refers to one or more, "multiple" refers to two or more than two, and "at least two (item)" refers to two or three And three or more, "and/or" is used to describe the association relationship of the associated objects, indicating that there can be three kinds of relationships, for example, "A and/or B" can mean: there is only A, only B and A at the same time And B three cases, where A, B can be singular or plural. The character "/" generally indicates that the associated objects before and after are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a). For example, at least one of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c" ", where a, b, and c can be single or multiple.

It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A. For example, B can be determined from A. It should also be understood that determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information. In addition, the "connection" appearing in the embodiments of the present application refers to various connection modes such as direct connection or indirect connection to realize communication between devices, which is not limited in the embodiments of the present application.

Unless otherwise specified, "transmit/transmission" in the embodiments of this application refers to two-way transmission, including sending and/or receiving actions. Specifically, the "transmission" in the embodiment of the present application includes the sending of data, the receiving of data, or the sending of data and the receiving of data. In other words, the data transmission here includes uplink and/or downlink data transmission. The data may include channels and/or signals, uplink data transmission means uplink channel and/or uplink signal transmission, and downlink data transmission means downlink channel and/or downlink signal transmission. The "network" and "system" appearing in the embodiments of the present application express the same concept, and the communication system is the communication network.

Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned functions can be allocated according to needs. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be divided. It can be combined or integrated into another device, or some features can be omitted or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate. The parts displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application are essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product, and the software product is stored in a storage medium. It includes several instructions to enable a device, such as a single-chip microcomputer, a chip, etc., or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any change or replacement within the technical scope disclosed in this application shall be covered by the protection scope of this application. . Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A method for determining the effective time, characterized in that it includes:

When the bandwidth part BWP activation timer expires, the terminal switches from the first BWP to the second BWP, where the BWP activation timer is used to instruct the terminal to switch from the activated BWP to the default BWP;

The terminal determines the effective time of the smallest available scheduling interval on the second BWP.
The method according to claim 1, wherein the timeout of the BWP activation timer comprises:

The BWP activation timer expires in time slot n, where n is an integer greater than or equal to 0;

The effective time of the smallest available scheduling interval on the second BWP is not earlier than the Qth time slot.
The method of claim 2, wherein:

The Q is equal to
Wherein the μ T is the numerology of the system parameter of the second BWP, the μ 1 is the numerology of the first BWP, and the T BWPswitchingDalay is the terminal switching from the first BWP to the second BWP The completion time.
The method of claim 3, wherein:

The T BWPswitchingDalay is determined according to the processing capability of the terminal, the numerology of the second BWP, and a first correspondence; wherein, the first comparison relationship includes the numerology of the BWP, the processing capability of the terminal, and the BWP switching completion time The corresponding relationship.
The method of claim 2, wherein:

The Q is equal to
The μ T is the numerology of the second BWP, the μ 1 is the numerology of the first BWP, and the X is determined according to the subcarrier interval of the second BWP.
The method of claim 2, wherein:

The Q is equal to
The μ T is the numerology of the second BWP, the μ 1 is the numerology of the first BWP, and the X is determined according to the subcarrier interval of the first BWP.
The method according to claim 5 or 6, characterized in that,

The X=max(Y, Z), wherein the Y is equal to 0, and the Z is determined according to the subcarrier spacing.
The method according to claim 7, wherein:

When the sub-carrier spacing is 15 kHz KHz, the Z is equal to 1,

When the subcarrier spacing is 30KHz, the Z is equal to 1,

When the subcarrier spacing is 60KHz, the Z is equal to 1 or 2,

When the subcarrier spacing is 120KHz, the Z is equal to 2.
The method according to any one of claims 1-8, wherein:

The BWP activation timer is configured to the terminal by the network device.
The method according to any one of claims 1-9, wherein:

The first BWP is a non-default BWP, and the second BWP is a default BWP.
The method according to any one of claims 1-10, wherein:

Receiving, by the terminal, first configuration information from a network device, where the first configuration information includes an optional value of the minimum available scheduling interval of the second BWP;

The terminal determines the minimum available scheduling interval of the second BWP according to the optional value of the minimum available scheduling interval of the second BWP.
The method according to any one of claims 1-11, wherein the method further comprises:

The terminal receives the physical downlink control channel PDCCH from the network device on the second BWP;

The terminal demodulates the PDCCH, and turns on or turns off the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.
A method for determining the effective time, characterized in that the method includes:

The terminal receives radio resource control RRC signaling from the network device, where the RRC signaling is used to instruct the terminal to switch from the first BWP to the second BWP,

The terminal switches from the first BWP to the second BWP according to the RRC signaling, and determines the effective time of the smallest available scheduling interval on the second BWP.
The method according to claim 13, wherein the RRC signaling is carried in a physical downlink shared channel PDSCH, the PDSCH is located in time slot n, and the n is an integer greater than or equal to 0,

The effective time of the smallest available scheduling interval on the second BWP is not earlier than the Qth time slot.
The method of claim 14, wherein:

The Q is equal to
Wherein, the T RRCprocessingDalay is the time for the terminal to process RRC signaling, the T BWPswitchingDalay is the completion time for the terminal to switch from the first BWP to the second BWP, and the time slot length is the The length of a time slot on the second BWP.
The method of claim 15, wherein:

The T BWPswitchingDalay is determined according to the processing capability of the terminal, the numerology of the second BWP, and a first correspondence; wherein, the first comparison relationship includes the numerology of the BWP, the processing capability of the terminal, and the BWP switching completion time The corresponding relationship.
The method of claim 14, wherein:

The Q is equal to n+X, the X=max(Y, Z), where the Y is equal to 0, and the Z is equal to
Wherein, TRRCprocessingDalay is the time for the terminal to process RRC signaling, and the length of the time slot is the length of the previous time slot of the second BWP.
The method according to claim 13, wherein the RRC signaling is carried in the PDSCH, the PDSCH is scheduled by the PDCCH, the PDCCH is located in the time slot m, and the m is an integer greater than or equal to 0,

The effective time of the smallest available scheduling interval on the second BWP is not earlier than the Rth time slot,

The R is equal to m+X, and the X is equal to
The Y is the minimum available scheduling interval currently in effect for the terminal, the TRRCprocessingDalay is the time for the terminal to process RRC signaling, and the length of the time slot is the length of the previous time slot of the second BWP.
The method according to any one of claims 15-18, wherein:

The time for the terminal to process RRC signaling is 10 milliseconds.
The method according to any one of claims 13-19, wherein the method further comprises:

Receiving, by the terminal, first configuration information from a network device, where the first configuration information includes an optional value of the minimum available scheduling interval of the second BWP;

The terminal determines the minimum available scheduling interval of the second BWP according to the optional value of the minimum available scheduling interval of the second BWP.
The method according to any one of claims 13-20, wherein the method further comprises:

The terminal receives the physical downlink control channel PDCCH from the network device on the second BWP;

The terminal demodulates the PDCCH, and turns on or turns off the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.
A communication device, wherein the communication device includes a processor and a memory, and instructions are stored in the memory; when the instructions are executed by the processor, the determination according to any one of claims 1-12 is realized The effective time method or the method for determining the effective time according to any one of claims 13-21.
A computer-readable storage medium, wherein the computer-readable storage medium includes computer instructions, when the computer instructions run on a computer, cause the computer to execute the determining effective time according to any one of claims 1-12 Or the method for determining the effective time according to any one of claims 13-21.
A computer program product, wherein the computer program product includes a computer instruction, when the computer instruction runs on a computer, the computer is caused to execute the method for determining the effective time according to any one of claims 1 to 12 Or the method for determining the effective time according to any one of claims 13-21.
A chip system, including: the chip system includes a processor and a memory, and instructions are stored in the memory; when the instructions are executed by the processor, the implementation of any one of claims 1-12 The method for determining the effective time or the method for determining the effective time according to any one of claims 13-21.