CN112584506B - Method and device for determining effective time - Google Patents

Abstract

The embodiment of the application discloses a method and a device for determining effective time, which relate to the technical field of communication and are used for determining the effective time of the minimum available scheduling interval on BWP after terminal switching. The method comprises the following steps: when a 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 determines the effective time of the minimum available scheduling interval on the second BWP. Or the terminal receives RRC signaling from the network device for instructing the terminal to switch from the first BWP to the second BWP, switches from the first BWP to the second BWP according to the RRC signaling, and determines an effective time of the minimum available scheduling interval on the second BWP.

Description

Method and device for determining effective time

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a method and a device for determining effective time.

Background

In Rel-15 defined by the third generation mobile communication standardization organization (3rd generation partnership project,3GPP), when a network device, such as a base station, schedules a data channel of a terminal, the network device first transmits scheduling information, through which the data channel of the terminal is scheduled, for example, the scheduling information of a physical downlink control channel (physical downlink SHARED CHANNEL, PDSCH) transmitted through a physical downlink control channel (physical downlink control channel, PDCCH) schedules the PDSCH of the terminal, or the scheduling information of a physical downlink control channel (physical downlink SHARED CHANNEL, PUSCH) transmitted through the PDCCH schedules the PUSCH of the terminal, where the scheduling information may indicate transmission parameters of the data channel, such as: and the time domain resource position of the data channel, and the like, and the terminal can receive the data channel at the time domain resource position of the data channel according to the indication of the scheduling information.

In the scheduling process, the network device may configure the terminal with a plurality of optional values of minimum available scheduling intervals, where the minimum available scheduling intervals may include a K0 minimum value and/or a K2 minimum value, for example: the network device configures an optional value of the K0 minimum value and/or the K2 minimum value based on each bandwidth part (BWP) of the terminal, so that the terminal determines a slot position of a data channel scheduled by a PDCCH on the BWP according to a minimum available scheduling interval corresponding to the BWP, and receives a PDSCH or transmits a PUSCH at the determined slot position.

Since different BWP may be configured with different minimum available scheduling interval, if BWP handover occurs, the minimum available scheduling interval on the new BWP may be updated, possibly different from the minimum available scheduling interval used on the previous BWP, and the terminal needs to enable the minimum available scheduling interval on the new BWP. But in some scenarios, such as: in the context of timer-based BWP handover, radio resource control (radio resource control, RRC) signaling-based BWP handover, etc., when the minimum available scheduling interval on the new BWP is enabled is not explicitly discussed.

Disclosure of Invention

The embodiment of the application provides a method and a device for determining effective time, which are used for determining effective time of minimum available scheduling interval on a new BWP.

In order to achieve the above purpose, the embodiment of the application adopts the following technical scheme:

in a first aspect, there is provided a method of determining an effective time, the method comprising: when a 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 minimum available scheduling interval on the second BWP.

Wherein the first BWP may be a BWP currently activated by the terminal, be it a non-default BWP, and the second BWP may be a default BWP. Based on the method of the first aspect, the terminal may determine the effective time of the minimum available scheduling time interval on the new BWP when the BWP activation timer times out and the BWP is switched, so as to avoid the problem of inconsistent understanding between the network side and the terminal about the time when the minimum available scheduling time interval starts to be started on the new BWP.

In one possible design, the BWP activation timer timeout comprises: the BWP activation timer times out in the time slot n, n being an integer greater than or equal to 0; the effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th slot; q may be determined from time slot n. Based on this possible design, the effective time of the minimum available scheduling time interval on the second BWP may be determined from the time of the BWP activation timer timeout, which is simple and easy to implement.

In one possible design, with the first aspect or any one of the possible designs of the first aspect, Q is equal toWhere μ _T is the system parameter numerology of the second BWP, μ ₁ is numerology of the first BWP and T _{BWPswitchingDalay} is the completion time of the terminal switching from the first BWP to the second BWP. Based on this possible design, the time at which the BWP switch is completed may be determined as the effective time of the smallest available scheduling interval on the second BWP.

In one possible design, with the first aspect or any one of the possible designs of the first aspect, Q is equal toWhere μ _T is numerology of the second BWP, μ ₁ is 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 numerology of the second BWP, μ ₁ is numerology of the first BWP, and X is determined according to the subcarrier spacing of the first BWP.

Based on this possible design, the minimum available scheduling interval on the new BWP may be validated at a point in time after slot n, spaced a preset length of time from slot n.

In a second aspect, the present application provides a communication device, which may be a terminal or a chip or a system on a chip in a terminal, or may be a functional module in a terminal for implementing the method of the second aspect or any of the possible designs of the second aspect. The communication device may implement the functions performed by the terminal in the aspects described above or in each possible design, which may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication device may include: a switching unit, a determining unit;

A switching unit for switching the BWP of the terminal from the first BWP to the second BWP when a BWP activation timer for instructing the terminal to switch from the activated BWP to the default BWP times out;

And the determining unit is used for determining the effective time of the minimum available scheduling interval on the second BWP.

Wherein the first BWP may be a BWP currently activated by the terminal, be it a non-default BWP, and the second BWP may be a default BWP. Based on the communication device of the second aspect, the effective time of the minimum available scheduling time interval on the new BWP can be determined when the BWP activation timer expires and the BWP is switched, so that the problem of inconsistent understanding of the time when the minimum available scheduling time interval starts to be activated on the new BWP between the network side and the terminal is avoided.

In one possible design, the BWP activation timer timeout comprises: the BWP activation timer times out in the time slot n, n being an integer greater than or equal to 0; the effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th slot; q may be determined from time slot n. Based on this possible design, the effective time of the minimum available scheduling time interval on the second BWP may be determined from the time of the BWP activation timer timeout, which is simple and easy to implement.

In one possible design, with the second aspect or any one of the possible designs of the second aspect, Q is equal toWhere μ _T is the system parameter numerology of the second BWP, μ ₁ is numerology of the first BWP and T _{BWPswitchingDalay} is the completion time of the terminal switching from the first BWP to the second BWP. Based on this possible design, the time at which the BWP switch is completed may be determined as the effective time of the smallest available scheduling interval on the second BWP.

In one possible design, with the second aspect or any one of the possible designs of the second aspect, Q is equal toWhere μ _T is numerology of the second BWP, μ ₁ is 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 numerology of the second BWP, μ ₁ is numerology of the first BWP, and X is determined according to the subcarrier spacing of the first BWP.

Based on this possible design, the minimum available scheduling interval on the new BWP may be validated at a point in time after slot n, spaced a preset length of time from slot n.

In a third aspect, a communication device is provided, which may be a terminal or a chip or a system on chip in a terminal. The communication device may implement the functions performed by the terminal in the above aspects or in each possible design, which may be implemented by hardware. In one possible design, the communication device may include: a processor and a communication interface, the processor being operable to support a communication device to implement the functionality involved in the first aspect or any one of the possible designs of the first aspect, for example: the processor is configured to switch the BWP of the terminal from the first BWP to the second BWP and determine an effective time of a minimum available scheduling interval on the second BWP when a BWP activation timer for instructing the terminal to switch from the activated BWP to the default BWP times out. In yet another possible design, the communication device may further include a memory for holding computer-executable instructions and data necessary for the communication device. When the communication device is running, the processor executes the computer-executable instructions stored in the memory to cause the communication device to perform the method of determining the validation time as described above 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, which may be a readable non-volatile storage medium, having stored therein instructions which, when run on a computer, cause the computer to perform the method of determining the validation time of the first aspect or any of the possible designs of the aspects.

In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of determining the validation time of the first aspect or any of the possible designs of the aspects.

In a sixth aspect, a communication device is provided, which may be a terminal or a chip or a system on a chip in a terminal, comprising one or more processors, one or more memories. The one or more memories are coupled to the one or more processors, the one or more memories for storing computer program code comprising computer instructions which, when executed by the one or more processors, cause the communications apparatus to perform the method of determining the validation time as described above in the first aspect or any of the possible designs of the first aspect.

The technical effects caused by any design manner of the third aspect to the sixth aspect may be referred to the technical effects caused by any possible design of the first aspect or the first aspect, and will not be described in detail.

In a seventh aspect, there is provided a method of determining an effective time, the method comprising: the terminal receives RRC signaling from the network device for instructing the terminal to switch from the first BWP to the second BWP, switches from the first BWP to the second BWP according to the RRC signaling, and determines an effective time of a minimum available scheduling interval on the second BWP.

Based on the method of the seventh aspect, the terminal may switch BWP after receiving RRC signaling for indicating BWP switching, and determine the effective time of the minimum available scheduling time interval on the new BWP, thereby avoiding the problem of inconsistent time understanding between the network side and the terminal that the minimum available scheduling time interval on the new BWP starts to be enabled.

In a possible design, with reference to the seventh aspect, RRC signaling is carried in a physical downlink shared channel PDSCH, where the PDSCH is located in a time slot n, where n is an integer greater than or equal to 0, and the minimum available scheduling interval on the second BWP takes effect no earlier than the Q-th time slot. Based on the possible design, the effective time of the minimum available scheduling time 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 to implement.

In one possible design, with reference to the seventh aspect or any one of the possible designs of the seventh aspect, Q is equal toWherein 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 slot length is the length of one slot on the second BWP. Based on this possible design, the time to parse the RRC signaling, complete the BWP handover may be determined as the effective time of the minimum available scheduling interval on the second BWP.

In one possible design, with reference to the seventh aspect or any one of the possible designs of the seventh aspect, Q is equal to n+x, x=max (Y, Z), where Y is equal to 0 and Z is equal toWherein T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the slot length is the length of one slot on the second BWP. Based on this possible design, the minimum available scheduling interval on the new BWP may be validated at a point in time spaced a preset length from slot n after slot n occupied by PDSCH carrying RRC signaling.

In one possible design, with reference to the seventh aspect or any one of the possible designs of the seventh aspect, the RRC signaling is carried in a PDSCH, the PDSCH is scheduled by a PDCCH, the PDCCH is located in a slot m, m is an integer greater than or equal to 0, an effective time of a minimum available scheduling interval on the second BWP is not earlier than an R-th slot, R is equal to m+x, and X is equal toY is the minimum available scheduling interval currently in effect by the terminal, T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the time slot length is the length of one time slot on the second BWP. Based on this possible design, the minimum available scheduling interval on the new BWP is validated at a point in time spaced a preset length from slot m after slot m occupied by the PDCCH for scheduling RRC signaling.

In an eighth aspect, the present application provides a communication device, which may be a terminal or a chip or a system on a chip in a terminal, and may be a functional module in a terminal for implementing the method of the seventh aspect or any of the possible designs of the seventh aspect. The communication device may implement the functions performed by the terminal in the aspects described above or in each possible design, which may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication device may include: a receiving unit, a switching unit and a determining unit;

a receiving unit for receiving RRC signaling from the network device for instructing the terminal to switch from the first BWP to the second BWP;

A switching unit for switching from the first BWP to the second BWP according to the RRC signaling;

And the determining unit is used for determining the effective time of the minimum available scheduling interval on the second BWP.

Based on the communication device of the eighth aspect, after receiving RRC signaling for indicating BWP handover, BWP is handed over, and the effective time of the minimum available scheduling time interval on the new BWP is determined, so that the problem of inconsistent time understanding between the network side and the terminal that the minimum available scheduling time interval on the new BWP starts to be enabled is avoided.

In a possible design, with reference to the eighth aspect, RRC signaling is carried in a physical downlink shared channel PDSCH, where the PDSCH is located in a time slot n, where n is an integer greater than or equal to 0, and the minimum available scheduling interval on the second BWP takes effect no earlier than the Q-th time slot. Based on the possible design, the effective time of the minimum available scheduling time 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 to implement.

In one possible design, with the eighth aspect or any one of the possible designs of the eighth aspect, Q is equal toWherein 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 slot length is the length of one slot on the second BWP. Based on this possible design, the time to parse the RRC signaling, complete the BWP handover may be determined as the effective time of the minimum available scheduling interval on the second BWP.

In one possible design, with reference to the eighth aspect or any one of the possible designs of the eighth aspect, Q is equal to n+x, x=max (Y, Z), where Y is equal to 0 and Z is equal toWherein T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the slot length is the length of one slot on the second BWP. Based on this possible design, the minimum available scheduling interval on the new BWP may be validated at a point in time spaced a preset length from slot n after slot n occupied by PDSCH carrying RRC signaling.

In one possible design, with reference to the eighth aspect or any one of the possible designs of the eighth aspect, the RRC signaling is carried in a PDSCH, the PDSCH is scheduled by a PDCCH, the PDCCH is located in a slot m, m is an integer greater than or equal to 0, an effective time of a minimum available scheduling interval on the second BWP is not earlier than an R-th slot, R is equal to m+x, X is equal toY is the minimum available scheduling interval currently in effect by the terminal, T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the time slot length is the length of one time slot on the second BWP. Based on this possible design, the minimum available scheduling interval on the new BWP is validated at a point in time spaced a preset length from slot m after slot m occupied by the PDCCH for scheduling RRC signaling.

In a ninth aspect, a communication device is provided, which may be a terminal or a chip or a system on chip in a terminal. The communication device may implement the functions performed by the terminal in the above aspects or in each possible design, which may be implemented by hardware. In one possible design, the communication device may include: a processor and a communication interface, the processor being operable to support the communication apparatus to carry out the functions involved in the seventh aspect or any one of the possible designs of the seventh aspect, for example: the processor receives RRC signaling from the network device over the communication interface to instruct the terminal to switch from the first BWP to the second BWP, switches from the first BWP to the second BWP according to the RRC signaling, and determines an effective time of a minimum available scheduling interval on the second BWP. In yet another possible design, the communication device further includes a memory for holding computer-executable instructions and data necessary for the communication device. When the communication device is running, the processor executes the computer-executable instructions stored in the memory to cause the communication device to perform the method of determining the validation time as described in the seventh aspect or any one of the possible designs of the seventh aspect.

In a tenth aspect, there is provided a computer readable storage medium, which may be a readable non-volatile storage medium, having stored therein instructions which, when run on a computer, cause the computer to perform the method of determining the validation time of the seventh aspect or any one of the possible designs of the aspects.

In an eleventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to carry out the method of determining the validation time of the seventh aspect or any one of the possible designs of the aspects above.

In a twelfth aspect, a communication device is provided, the communication device being a terminal or a chip or a system on a chip in a terminal, the communication device comprising one or more processors, one or more memories. The one or more memories are coupled to the one or more processors, the one or more memories for storing computer program code comprising computer instructions that, when executed by the one or more processors, cause the communications apparatus to perform the method of determining the validation time as described in the seventh aspect or any of the possible designs of the seventh aspect described above.

The technical effects of any one of the designs of the ninth aspect to the twelfth aspect may be referred to the technical effects of any one of the possible designs of the seventh aspect or the seventh aspect, and will not be described in detail.

In a thirteenth aspect, embodiments of the present application provide a communication system, which may include: a terminal, network device as in any of the second or sixth aspects; or comprises a terminal, network device according to any of the eighth or twelfth aspects.

Drawings

FIG. 1 is a simplified schematic diagram of a system architecture according to an embodiment of the present application;

Fig. 2 is a schematic diagram of a communication device according to an embodiment of the present application;

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

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

Fig. 4b is a schematic diagram illustrating yet another determination of the minimum available scheduling interval on BWP according to an embodiment of the present application;

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

FIG. 5 is a schematic view of a user browsing a webpage through a mobile phone according to an embodiment of the present application;

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

FIG. 7 is a schematic view of a scenario in which a user browses a web page through a mobile phone according to an embodiment of the present application;

Fig. 8 is a schematic diagram of a communication device 80 according to an embodiment of the present application;

Fig. 9 is a schematic diagram of a communication system according to an embodiment of the present application.

Detailed Description

Before describing the embodiments of the present application, some terms related to the embodiments of the present application will be explained:

Bandwidth part (BWP): a portion of the system bandwidth. The system bandwidth may refer to the bandwidth of one carrier, and the system bandwidth may be large, for example: which may be 200MHz or 400MHz, some terminals do not support such a large system bandwidth, so the network device may configure the terminals with BWP, such as: a portion of the system bandwidth, 20MHz, over which terminals may communicate with network devices. BWP can be classified into downlink BWP (DL BWP) and uplink BWP (UP BWP), and UP BWP can be used to transmit signals transmitted from the terminal to the network device, i.e., the terminal can transmit uplink signals on UL BWP; the downlink BWP may be used to transmit signals from the network device to the terminal, which may receive the downlink signals on the DL BWP. The network device may configure the terminal with a plurality of DL BWP and a plurality of UL BWP, and activate (active) at least one DL BWP and at least one UL BWP, and the terminal receives downlink signals transmitted by the network device, including but not limited to downlink control signaling, downlink data, on the activated DL BWP; the terminal transmits uplink signals including, but not limited to, uplink control signaling, uplink data, scheduling requests (scheduling request, SR), channel Sounding Reference Signals (SRs) REFERENCE SIGNAL, channel State Information (CSI)/channel quality indication (channel quality indicate, CQI) feedback, and the like on the activated UL BWP.

The network device may configure BWP parameters and minimum available scheduling intervals for each BWP, and the BWP parameters and minimum available scheduling intervals for different BWP configurations may be different. The BWP parameters may include coefficient parameters (numerology) of BWP, where the system parameters may also be named parameters or other names, without limitation. numerology correspond to the subcarrier spacing of BWP, the slot length of BWP, etc. The subcarrier spacing of BWP is equal to 2 ^μ x 15khz, μ is numerology of BWP. The larger the numerology of BWP, the larger the subcarrier spacing of BWP and the shorter the corresponding symbol length. For example, table one below is a BWP parameter table, and as shown in table one, numerology may take on the following values: 0 to 3, the subcarrier intervals respectively corresponding to the four values are as follows: 15kHz, 30kHz, 60kHz, 120kHz, and the corresponding time slot lengths are as follows: 1ms, 0.5ms, 0.25ms, 0.125ms.

List one

numerology	Subcarrier spacing (kHz)	Time slot length (ms)
			0	15	1
1	30	0.5
			2	60	0.25
3	120	0.125

Wherein the network device may configure one or more minimum available scheduling intervals for each BWP. Such as: the network device may configure 0, 1, or 2 minimum available scheduling intervals on one BWP for the terminal.

The minimum available scheduling interval may refer to a minimum time slot difference between a time slot occupied by a physical downlink control channel (physical downlink control channel, PDCCH) and a time slot occupied by a data channel scheduled by the PDCCH, and the time slot occupied by the PDCCH may be the same as or different from the time slot occupied by the data channel scheduled by the PDCCH. The data channels may include a Physical Uplink SHARED CHANNEL (PUSCH), a physical downlink data channel (physical downlink SHARED CHANNEL, PDSCH), which 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 time slot difference between the time slot occupied by the PDCCH and the time slot occupied by the PDSCH scheduled by the PDCCH is indicated by the K0 value, where the K0 value has a value set, and the value set may be included in a time domain resource allocation (time domain resource allocation, TDRA) table and configured to the terminal by the network device.

For example, when the second table below is a table TDRA configured by the network device for the terminal when the PDSCH is scheduled for the PDCCH, as shown in the second table, the TDRA table includes an index value (index) and a K0 value corresponding to the index value, where the K0 value may be {0,1,2 … … }. The network device may 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 slot, i.e. "simultaneous slot scheduling (single slot scheduling)". If K0>0, it means that the PDCCH and the PDSCH are not in the same slot, i.e. "cross-slot scheduling".

Watch II

Index value (index)	K0 value
		0	0
1	1
		2	1

In the 3GPP protocol, the K2 value indicates the time slot difference between the time slot occupied by the PDCCH and the time slot occupied by the PUSCH scheduled by the PDCCH, and there is a value set of the K2 value, where the value set may be configured to the terminal in the TDRA table. For example, when the following table three schedules PUSCH for PDCCH, the network device configures TDRA table for the terminal, and as shown in table three, the TDRA table includes an index value and a K2 value corresponding to the index value, and the network device may indicate the K2 value to the terminal indirectly by indicating the index value to the terminal. As shown in table three, if k2=0, it means that the PDCCH and PUSCH are in the same slot, i.e. "simultaneous slot scheduling". If K2>0, it means that the PDCCH and the PUSCH are not in the same slot, i.e. "cross-slot scheduling".

Watch III

Index value (index)	K2 value
		0	2
1	2

It should be noted that, the first table and the second table are merely exemplary tables, and the first table and the second table may include other contents besides those shown in the tables, such as: start and length indication values (STARTING AND LENGTH incdication value), mapping types (MAPPING TYPE), etc. may also be included, as the application is not limited in this regard.

A method for determining a generation time according to an embodiment of the present application is described below with reference to the accompanying drawings.

The method for determining the effective time provided by the embodiment of the application can be used for a communication system supporting various scheduling modes, such as: the method can be applied to any one of a fourth generation (4 ^th generation, 4G) system, a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) system, a New Radio (NR) system, an NR-car and anything communication (V2X) system, and can also be applied to other next generation communication systems, etc., without limitation. The method provided by the embodiment of the present application will be described below by taking the communication system shown in fig. 1 as an example.

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application, where, as shown in fig. 1, the communication system may include a network device and a plurality of terminals, for example: terminal 1, terminal 2. The terminal may be located within a coverage area of the network device and connected to the network device through a connection. In the system shown in fig. 1, a network device may configure a plurality of BWP for a terminal, each BWP configured with a minimum available scheduling interval, and the terminal may communicate with the network device through the activated BWP. For example, as shown in fig. 1, the terminal may determine a time slot position of downlink data scheduled by the PDCCH through a 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 may also determine a slot position of uplink data scheduled by the PDCCH through a minimum available scheduling interval on the uplink BWP, and transmit data to the network device at the determined slot position. It should be noted that fig. 1 is only an exemplary frame diagram, and the number of nodes included in fig. 1 is not limited, and other nodes may be included in addition to the functional nodes shown in fig. 1, for example: core network devices, gateway devices, application servers, etc., are not limited.

The network equipment is mainly used for realizing the functions of resource scheduling, wireless resource management, wireless access control and the like of the terminal. In particular, the network device may be any of a small base station, a wireless access point, a transceiver point (transmission receive point, TRP), a transmission point (transmission point, TP), and some other access node.

The terminal may be a terminal device (terminal equipment) or a User Equipment (UE) or a Mobile Station (MS) or a Mobile Terminal (MT), etc. Specifically, the terminal may be a mobile phone (mobile phone), a tablet computer, or a computer with a wireless transceiver function, and may also be a Virtual Reality (VR) terminal, an augmented reality (augmented reality, AR) terminal, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city (SMART CITY), a smart home, a vehicle-mounted terminal, and the like. In the embodiment of the present application, the device for implementing the function of the terminal may be the terminal, or may be a device capable of supporting the terminal to implement the function, for example, a chip system. The method for determining the validation time provided by the embodiment of the application is described below by taking a terminal as an example of a device for realizing the function of the terminal.

In the system shown in fig. 1, a terminal may be handed over from one BWP to another BWP, i.e., BWP handoff occurs. For example: BWP handoff can occur when the terminal is in any of the following three scenarios:

Scenario (one), terminal receives physical layer dynamic signaling from network device, such as: l1 signaling (signalliong) for instructing the terminal to switch from one BWP to another BWP, i.e., for instructing the terminal to perform BWP switching, according to the received physical layer dynamic signaling.

Currently, under the scenario (one), the physical layer dynamic signaling is carried in the PDCCH, and when the physical layer dynamic signaling is sent to the terminal in the time slot n, the terminal determines the effective time of the minimum available scheduling interval on the BWP after the handover according to the formula (1):

Wherein, Representing a rounding down, μ _{New type bwp} is numerology of BWP after switching, μ _{Old one bwp} is numerology of BWP before switching, X may be the maximum of the second and minimum values, such as: x=max (Y, Z). Y is the minimum scheduling interval in effect, 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, the greater Z may be, and, illustratively, Z is equal to 1 or greater than 1.

The scenario (two), the terminal is provided with a BWP activation timer (BWP INACTIVITY TIMER) for instructing the terminal to switch from the activated BWP to the default BWP, or it may be described that the BWP activation timer is a timer for the terminal to activate the default BWP and deactivate the activated BWP.

Wherein the default BWP may be preconfigured. The duration of the BWP activation timer may be set as needed, without limitation. Illustratively, the range of values for the duration of the BWP activation timer may be set to [2ms,2560ms ].

When the terminal receives downlink control information (downlink control information, DCI) for scheduling from the network device on a certain active BWP, i.e. the terminal receives scheduling, the terminal starts/restarts the BWP activation timer, and when the BWP activation timer times out, i.e. the terminal does not receive DCI for scheduling data for a considerable period of time, the terminal switches from the active BWP to the default (default) BWP. Further, the terminal receives or transmits data on the default BWP.

Scenario (III), the terminal receives radio resource control (radio resource control, RRC) signaling from the network device, the RRC signaling is used to instruct the terminal to switch from one BWP to another BWP, i.e. the RRC signaling is used to instruct the terminal to switch the BWP, and the terminal performs the BWP switch after receiving the RRC signaling.

Wherein the RRC signaling may include an index of a new BWP, and the terminal may switch the BWP on which the terminal is currently operating to the new BWP according to the index of the new BWP included in the RRC signaling. Further, the terminal receives or transmits 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 three scenarios, the terminal may switch to a new BWP and enable the minimum available scheduling interval on the new BWP, such as: when the terminal is in the scene (one), the terminal determines the effective time of the minimum available scheduling interval on the new BWP according to the formula (1) and the PDCCH demodulation capability of the terminal. However, when the terminal is in the scenario (two), since the time from the expiration of the BWP timer to the completion of the handoff of the BWP cannot be determined in the BWP timer expiration scenario, the terminal cannot determine the minimum available scheduling interval on the new BWP in the scenario (two) according to formula (1). Similarly, when the terminal is in the scenario (iii), the RRC signaling received by the terminal to instruct the BWP handover is carried in the PUSCH, the processing time of the RRC signaling by the terminal is different from the processing time of the terminal demodulating the PDCCH, and the processing time of the RRC signaling is longer than the physical layer signaling, so the terminal cannot determine the minimum available scheduling interval on the new BWP in the scenario (iii) according to the formula (1), so that the terminal cannot determine when to enable the minimum available scheduling interval on the new BWP in the scenario (ii) or the scenario (iii), cannot determine the time domain position of the data scheduled on the new BWP according to the minimum available scheduling interval on the new BWP, and cannot perform data transmission according to the time domain position of the data scheduled on the new BWP.

To this end, the embodiment of the present application provides a method for determining an effective time, so as to determine an effective time of a minimum available scheduling interval of a terminal on a new BWP when the terminal is in any one of the above two scenes (two) and (three). In particular, the method may be described with reference to the corresponding embodiments of fig. 3 or fig. 6.

In specific implementation, each network element shown in fig. 1 includes: the terminal, the network device may employ the constituent structure shown in fig. 2 or include the components shown in fig. 2. Fig. 2 is a schematic diagram of a communication device 200 according to an embodiment of the present application, where the communication device 200 has the function of a terminal according to an embodiment of the present application, the communication device 200 may be a terminal or a chip or a system on a chip in the terminal. When the communication apparatus 200 has the function of the network device according to the embodiment of the present application, the communication apparatus 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 also include a memory 204. 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 (central processing unit, CPU), a general purpose processor network processor (network processor, NP), a digital signal processor (DIGITAL SIGNAL processing, DSP), a microprocessor, a microcontroller, a programmable logic device (programmable logic device, PLD), or any combination thereof. The processor 201 may also be other means for processing, such as a circuit, device, or software module.

Communication line 202 is used to communicate information between the various components included in communication device 200.

Communication interface 203 for communicating with other devices or other communication networks. The other communication network may be an ethernet, a radio access network (radio access network, RAN), a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 203 may be a radio frequency module, transceiver, or any device capable of enabling communication. The embodiment of the present application is described by taking the communication interface 203 as an rf module, where the rf module may include an antenna, an rf circuit, and the like, and the rf circuit may include an rf integrated chip, a power amplifier, and the like.

Memory 204 for storing instructions. Wherein the instructions may be computer programs.

The memory 204 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and/or instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device capable of storing information and/or instructions, an EEPROM, a compact disk (compact disc read-only memory, CD-ROM) or other optical disk storage, magnetic disk storage medium or other magnetic storage device, including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.

It should be noted that, the memory 204 may exist separately from the processor 201 or may be integrated with the processor 201. Memory 204 may be used to store instructions or program code or some data, etc. The memory 204 may be located inside the communication device 200 or outside the communication device 200, and is not limited. Processor 201 is configured to execute instructions stored in memory 204 to implement the method for determining a validation time provided by the embodiments of the present application described below.

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

As an alternative implementation, the communication device 200 includes multiple processors, e.g., in addition to the processor 201 in fig. 2, a processor 207 may be included.

As an alternative implementation, the communication apparatus 200 further comprises an output device 205 and an input device 206. Illustratively, the input device 206 is a keyboard, mouse, microphone, or joystick, and the output device 205 is a display, speaker (speaker), or the like.

It should be noted that the communication apparatus 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 having a similar structure in fig. 2. Further, the constituent structure shown in fig. 2 does not constitute a limitation of the communication apparatus, and the communication apparatus may include more or less components than those shown in fig. 2, or may combine some components, or may be arranged in different components, in addition to those shown in fig. 2.

In the embodiment of the application, the chip system can be composed of chips, and can also comprise chips and other discrete devices.

The method for determining the effective time according to the embodiment of the present application is described below with reference to the communication system shown in fig. 1. Wherein each of the devices in the embodiments described below may have the components shown in fig. 2. In which the terms and the like related to the actions of the embodiments of the present application are mutually referred to, without limitation. The message names of interactions between the devices or parameter names in the messages in the embodiments of the present application are just an example, and other names may be used in specific implementations without limitation.

Fig. 3 is a method for determining an effective time according to an embodiment of the present application, so as to determine an effective time of a minimum available scheduling interval on a default BWP when a BWP activation timer in a terminal is timed out; as shown in fig. 3, the method may include:

step 301: when the BWP activation timer times out, the terminal switches from the first BWP to the second BWP.

Wherein the BWP activation timer may be a timer configured by the network device to the terminal, the BWP activation timer functioning as described above. The terminal may be any of the terminals in fig. 1, and the network device may be the network device in fig. 1.

For example, the terminal may receive configuration information from the network device, which may include indication information for setting the BWP activation timer and a duration of the BWP activation timer. The duration of the BWP activation timer may be set as required, for example: the setting may be set according to information such as the size of data transmitted on BWP, the number of times of repeated transmission of data on BWP, the quality of service (quality of service, qoS) of data transmitted on BWP, etc., without limitation.

Wherein the first BWP may be a BWP currently activated by the terminal or a non-default BWP or a BWP currently operated by the terminal, and the second BWP is a default BWP.

In one example, when there is only one radio frequency module in the terminal, the radio frequency module may support reception or transmission of one or more BWP, the switching of the terminal from the first BWP to the second BWP may include: the terminal switches the frequency band supported by the radio frequency module, switches from the frequency band of the first BWP to the frequency band of the second BWP, stops using the parameters for receiving the first BWP, enables the parameters for receiving the data transmitted on the second BWP, and so on. In yet another example, there are a plurality of radio frequency modules in the terminal, each radio frequency module supporting reception or transmission of one BWP, and the switching of the terminal from the first BWP to the second BWP may include: turning off/deactivating/disabling the radio frequency module for receiving data transmitted on the first BWP, ceasing to use parameters for receiving data transmitted on the first BWP, turning on/activating/enabling) the radio frequency module for receiving data transmitted on the second BWP, and enabling parameters for receiving data transmitted on the second BWP.

The completion time required for switching from the first BWP to the second BWP is different for terminals of different processing capabilities. In the embodiment of the present application, the time required for the terminal to switch the BWP, i.e., the BWP switch completion time, may be determined according to numerology of the BWP and the processing capability of the terminal. For example, a correspondence between numerology of the BWP and the processing capability of the terminal may be preconfigured, and the terminal may determine a completion time of the terminal switching from the first BWP to the second BWP according to the correspondence, the processing capability of the terminal, and numerology of the second BWP.

In the embodiment of the present application, the BWP switch completion time may also be referred to as BWP switch delay (BWP SWITCH DELAY) or other names, without limitation.

It should be noted that the BWP handover delay is not limited to be determined by the processing capability of the terminal, i.e. not limited to BWP SWITCH DELAY DEPENDS on UE capability, if BWP handover is accompanied by a change in subcarrier spacing (subcarrier spacing, SCS), the BWP handover delay is determined by the largest one of the handover delays corresponding to the subcarrier spacing before and after BWP handover, i.e. 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 the SCS after BWP switch.

For example, table four below shows the correspondence between numerology of BWP and processing capability of the terminal, and numerology for BWP is {0,1,2,3} when the processing capability of the terminal is type 1, BWP is {1ms, 0.5ms, 0.25ms, 0.125ms } and BWP switch completion time is {1 slot, 2 slots, 3 slots, 6 slots }, as shown in table four; when the processing capability of the terminal is type 2, numerology for BWP is {0,1,2,3}, BWP is {1ms, 0.5ms, 0.25ms, 0.125ms } and BWP switch completion time is {3 slots, 5 slots, 9 slots, 18 slots }; at this time, if the second BWP is BWP0, numerology of BWP0 is 2, and the processing capability of the terminal is type 1, the terminal can determine that the completion time required for switching from the first BWP to BWP1 is 3 slots by looking up the table four.

Table four

Step 302: the terminal determines an effective time of a minimum available scheduling interval on the second BWP.

Wherein, as described above, when the second BWP is the downlink BWP, the minimum available scheduling interval on the second BWP is K0, and when the second BWP is the 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 that the terminal starts to schedule the data channel according to the minimum available scheduling interval on the second BWP, such as: time of PDSCH, PUSCH; or the time at which the minimum available scheduling interval on the second BWP starts to take effect. The terminal may adjust its own functional module when the effective time of the minimum available scheduling interval on the second BWP comes or after the effective time of the minimum available scheduling interval on the second BWP comes before the indication of the next handover BWP comes, such as: the radio frequency module, a processing module for demodulating the PDCCH, etc., schedules the data channel according to the minimum available scheduling interval validated/used on the second BWP. For example, when the minimum available scheduling interval schedule on the second BWP is greater than 0, i.e. cross-slot scheduling, the terminal may close its radio frequency module until the scheduled data arrives after the effective time of the minimum available scheduling interval on the second BWP, including the effective time of the minimum available scheduling interval on the second BWP, so as to achieve the purpose of terminal energy saving.

Wherein the minimum available scheduling interval on the second BWP may be determined according to any one of the following (1) to (3): (1) The network device determines the minimum K0 value/K2 value in the TDRA table as the minimum available scheduling interval on the second BWP if the optional value of the minimum available scheduling interval of the second BWP configured by the network device for the terminal is 0, i.e., the optional value of the minimum available scheduling interval of the second BWP is not configured; (2) The terminal receives first configuration information including an optional value of a minimum available scheduling interval of the second BWP from the network device, and 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 determining, by the terminal, 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 determines the minimum available scheduling interval included in the first configuration information as the minimum available scheduling interval on the second BWP. Or alternatively

The first configuration information includes a plurality of minimum available scheduling intervals, the terminal determines a minimum available scheduling interval having a maximum value or a minimum value among the plurality of minimum available scheduling intervals as a minimum available scheduling interval on the second BWP, or includes a first used value among the plurality of minimum available scheduling intervals, and the terminal determines the first used value as a minimum available scheduling interval on the second BWP.

The first-used value may be preconfigured to the terminal by the network device, and the first-used value may also be referred to as a default value (default value). The first configuration information includes a plurality of minimum available scheduling intervals corresponding to index values, and the first use value may be a minimum available scheduling interval with a maximum index or a minimum index among the plurality of minimum available scheduling intervals.

Illustratively, the BWP activation timer times out within a time slot n, n being an integer greater than or equal to 0, the minimum available scheduling interval on the second BWP having an effective time not earlier than the Q-th time slot, Q being determinable from the time slot n.

Wherein, the BWP activation timer timeout in the time slot n may include: the BWP activation timer times out at the beginning symbol position of the slot n or the BWP activation timer times out at the end symbol position of the slot n, without limitation.

The time slot according to the embodiment of the present application may include a plurality of symbols, for example: one slot may include 12 or 14 symbols, etc. When one slot includes a plurality of symbols, the minimum available scheduling interval on the second BWP takes effect no earlier than the Q-th slot includes: the effective time of the minimum available scheduling interval on the second BWP is not earlier than the start symbol of the Q-th slot or not earlier than any symbol in the Q-th slot or not earlier than the end symbol of the Q-th slot, etc., or when the time length of one symbol is several tens of us, the effective time of the minimum available scheduling interval on the second BWP is a symbol in the Q-th slot, for example: the starting time of the starting symbol or any other symbol, or the effective time of the minimum available scheduling interval on the second BWP is any other time of a symbol in the Q-th slot, for example: the qth us, q in a certain symbol is an integer, etc.

In one example, Q is equal to Represents a round down, μ _T is numerology of the second BWP, μ ₁ is numerology of the first BWP, T _{BWPswitchingDalay} is the completion time of the terminal switching from the first BWP to the second BWP, i.e. the slot index pass/>, when the BWP is active and the BWP activation timer times outConverting to a slot index when the BWP activation timer times out when the second BWP works, and validating the minimum available scheduling interval on the second BWP when the BWP handover is completed after the BWP activation timer times out.

Wherein, T _{BWPswitchingDalay} can be determined by looking up table four, which is not described in detail.

In yet another example, Q is equal to

Wherein μ _T is numerology of the second BWP and μ ₁ is numerology of the first BWP. In an embodiment of the present application,May be referred to as a scaling factor, which may be used to convert the slot index correspondence on pre-handoff BWP to the slot index on post-handoff BWP when a BWP handoff occurs, in order to ensure that the slot index on the pre-handoff BWP and post-handoff BWP for the same slot are the same, since the slot lengths corresponding to different BWP may be different.

Wherein X may be BWP switch completion time or BWP SWITCH DELAY, or a slot value determined according to the subcarrier, without limitation.

Taking X as BWP SWITCH DELAY, X as an integer number of timeslots, the default BWP of the terminal is BWP0, and numerology of BWP0 is 1 as an example, as shown in fig. 4a, it is assumed that the BWP currently activated by the terminal is BWP1, and numerology of BWP1 is 1. If the BWP activation timer times out on time slot n, the terminal switches from BWP1 to BWP0 as shown in fig. 4a, according toDetermining that the time slot on BWP1 is aligned with the time slot on BWP, the index of the time slot on BWP0, BWP1 is the same for the same time slot, without conversion, and thus according to formula/>Determining that the effective time of the minimum available scheduling interval on BWP0 is not earlier than the n+xth slot, e.g.: the start position of the n+x time slot. /(I)

As another example, as shown in fig. 4b, if the BWP currently activated by the terminal is BWP2 and numerology of BWP2 is 0 and the BWP activation timer times out on the slot n, the terminal is switched from BWP2 to BWP0 as shown in fig. 4b, according to the followingIt is determined that for the same slot, the slot index of the slot on BWP2 is 2 times the slot index of the slot on BWP0, and therefore, according to the formula/>Determining that the effective time of the minimum available scheduling interval on BWP0 is not earlier than 2n+x time slots, such as: start position of 2n+x time slot.

Wherein, when X is a slot value determined according to a subcarrier, the determining of X according to the subcarrier spacing of the second BWP may include: x=max (Y, Z). The formula x=max (Y, Z) may be the determination formula of X described in the above scenario (one), and other formulas capable of determining X may be multiplexed. It should be noted that, the formula x=max (Y, Z) described in the embodiment of the present application may be applied to other scenes besides the scene (two) and the scene (three), and is not limited.

Illustratively, Y is equal to 0 and z is determined from the subcarrier spacing 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 yet another example, Q is equal toWhere μ _T is numerology of the second BWP, μ ₁ is numerology of the first BWP, and X is determined according to the subcarrier spacing of the first BWP.

Wherein, the determining of X according to the subcarrier spacing of the first BWP may include: x=max (Y, Z), Y being equal to 0, Z being determined according to the subcarrier spacing of the first BWP.

Illustratively, when the subcarrier spacing of the first BWP is 15KHz, Z is equal to 1; when the subcarrier spacing of the first BWP is 30KHz, Z is equal to 1; when the subcarrier spacing 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 fig. 3, the terminal may determine the effective time of the minimum available scheduling time interval on the new BWP in the case that the BWP activation timer times out and the BWP is switched, which provides a feasibility scheme for how to determine the effective time of the minimum available scheduling time interval on the new BWP in the BWP activation timer time-out scenario, and meanwhile, avoids the problem of inconsistent understanding between the network side and the terminal about the time when the minimum available scheduling time interval on the new BWP starts to be started.

Further, in a first embodiment of the method shown in fig. 3, the method further includes:

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

Therefore, the terminal can start the radio frequency module of the terminal in real time during the scheduling of the same time slot so as to ensure the smooth transmission of the data channel. And when the cross-time slot scheduling is performed, the radio frequency module of the terminal can be closed before the terminal transmits data in the data channel, so that the power consumption of the terminal is reduced, and the energy-saving effect of the terminal is realized.

For example, as shown in fig. 4c, the terminal receives the PDCCH transmitted on the default BWP in the t1 period, as shown in the left side of fig. 4c, the minimum available scheduling interval on the default BWP is 0, the terminal knows that there is a simultaneous slot scheduling in the current slot, and in order to avoid data and/or signal loss, the terminal must buffer data and/or signals while decoding the PDCCH after receiving the PDCCH, as shown in the left side of fig. 4c, in the t2 period, the terminal needs to turn on its own radio frequency module at all times to buffer data and/or signals. If the minimum available scheduling interval on the default BWP is greater than 0 as shown on the right side of fig. 4c, the terminal can know that the data channel scheduled by the PDCCH does not exist in the current time slot when the scheduling interval between the PDCCH and the data channel is cross-slot scheduling, and after the terminal receives the PDCCH, the terminal can close the self radio frequency module in the process of decoding the PDCCH, does not cache any data and/or signals, so as to achieve the effect of saving energy, and the shadow part corresponding to the part t2 period shown on the right side of fig. 4c is the energy saved by the terminal.

The method shown in fig. 3 will be described below with reference to a scenario in which a user browses a web page through a mobile phone, in which a terminal is the mobile phone, a network device is the base station, the terminal operates on BWP1, a default BWP in the terminal is BWP0, a BWP activation timer in the terminal is set to 2560ms, and a minimum available scheduling interval on BWP0 is k0=1.

As shown in fig. 5, after the base station establishes a radio resource control (radio resource control, RRC) connection with the mobile, the base station sends TDRA a table to the mobile and instructs the mobile to operate in BWP1.

When a user requests to browse hot news through a mobile phone, the mobile phone requests transmission resources to a base station, and under the indication of DCI1 for scheduling PUSCH sent by the base station, according to the user's browse hot news request, a download request is sent to the base station at BWP1 to request to download the hot news, and a BWP activation timer is started at the same time;

After receiving the request for downloading the hot news, the base station acquires the hot news from the server and sends the hot news to the mobile phone;

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

The user browses the time period of the hot news on the mobile phone, the mobile phone does not receive any schedule of the base station, at this time, because the time of the mobile phone which does not receive the schedule of the base station is too long, reaching 2561ms, the BWP activation timer is overtime, the mobile phone is switched from BWP1 to BWP0, and the effective time of the minimum available time slot interval on the BWP0 is determined according to the method shown in fig. 3;

subsequently, when the base station pushes the weather forecast to the mobile phone, the mobile phone receives DCI2 for scheduling PDSCH including the weather forecast in time slot 1, and then the mobile phone receives PDSCH sent by the base station in time slot 2 or a time slot after time slot 2 on BWP0 according to the minimum available time slot interval k0=1 of BWP0, and will receive the received information, such as: today's weather: the rain is 22 degrees, please carry the umbrella and present it to the user.

The methods shown in fig. 3 and fig. 5 are described with respect to how the terminal determines the minimum available scheduling interval on the BWP after the handover in the BWP activation timer timeout scenario. In still another method, the embodiment of the application also provides a method for determining the minimum available scheduling interval on the BWP after the switching in the scene of indicating the terminal to switch the BWP through the RRC signaling. Specifically, the method can be described with reference to fig. 6:

Fig. 6 is a method for determining an effective time according to an embodiment of the present application, so as to indicate a BWP of a handover terminal according to RRC signaling, and determine an effective time of a minimum available scheduling interval on the BWP after the handover; as shown in fig. 3, the method may 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 a network device in fig. 1.

Wherein 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 an index of the second BWP, and the index of the second BWP may be used to instruct the second BWP.

For example, the RRC signaling is sent to the terminal in the PDSCH. Such as: the network device transmits a PDSCH to the terminal, the PDSCH including RRC signaling.

For example, when the network device determines that the data transmitted on the first BWP is greater than a preset threshold, i.e., the first BWP is congested or overloaded, the network device sends RRC signaling to the terminal, instructing the terminal to switch from the first BWP to the second BWP.

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

For example, the terminal receives PDSCH carrying RRC signaling from the network device, and acquires 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 an effective time of the minimum available scheduling interval on the second BWP.

Wherein the first BWP and the second BWP are non-default BWP in the terminal, or the first BWP is a default BWP, the second BWP is a non-default BWP, or the first BWP is a non-default BWP, and the second BWP is a default BWP.

Wherein the terminal switching from the first BWP to the second BWP may include: the radio frequency module, parameters, etc. for receiving data transmitted on the first BWP are turned off (or deactivated or disabled), and the radio frequency module, parameters, etc. for receiving data transmitted on the second BWP are turned on (or activated or enabled). For example, the terminal may determine the completion time of switching from the first BWP to the second BWP with reference to the description in step 301, without limitation.

The determination of the minimum available scheduling interval on the second BWP and the relevant definition of the effective time of the minimum available scheduling interval on the second BWP can be described in step 302, which is not repeated.

Illustratively, the terminal may determine the effective time of the minimum available scheduling interval on the second BWP by any one of the following ways.

In the first mode, the RRC signaling is carried in the PDSCH, where the PDSCH is located in a 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 is not earlier than the Q-th time slot.

Wherein, the effective time of the minimum available scheduling interval on the second BWP is not earlier than the start symbol of the Q slot or not earlier than any symbol in the Q slot or not earlier than the end symbol of the Q slot, or when the time length of one symbol is several tens of us, the effective time of the minimum available scheduling interval on the second BWP is a certain symbol in the Q slot, such as: the starting time of the starting symbol or any other symbol, or the effective time of the minimum available scheduling interval on the second BWP is any time of a symbol in the Q-th slot, for example: the qth us, q in a certain symbol is an integer, etc.

In one example, Q is equal toI.e. the minimum available scheduling interval on the second BWP is effected upon completion of the BWP handover after the terminal receives the RRC signaling.

Wherein T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling. For example, the time for the terminal to process RRC signaling may be 10ms.

The determination method of T _{BWPswitchingDalay} is described with reference to step 301, and is not repeated herein, where T _{BWPswitchingDalay} is the completion time of the terminal switching from the first BWP to the second BWP.

Wherein the time slot length is the length of one time slot on the second BWP. Wherein the length of one slot on the second BWP can be determined by looking up a table. For example, as shown in table one, if the subcarrier spacing of the second BWP is 15kHz, the length of one slot on the corresponding second BWP is 1ms.

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

Wherein Y is equal to 0 and Z is equal to

Wherein, the T _{RRCprocessingDalay} and the slot length are as described above, and are not described in detail.

In yet another example, the RRC signaling is carried in PDSCH scheduled by PDCCH, the PDCCH is located in slot m, the minimum available scheduling interval on the second BWP is not valid for earlier than the R-th slot,

Wherein m is an integer of 0 or more.

Wherein, the effective time of the minimum available scheduling interval on the second BWP is not earlier than the start symbol of the R-th time slot or not earlier than any symbol in the R-th time slot or not earlier than the end symbol of the R-th time slot, or when the time length of one symbol is several tens of us, the effective time of the minimum available scheduling interval on the second BWP is a certain symbol in the R-th time slot, such as: the starting time of the starting symbol or any other symbol, or the effective time of the minimum available scheduling interval on the second BWP is any other time of a symbol in the R-th slot.

Wherein R is equal to m+X, X is equal to

Wherein Y is the minimum available scheduling interval at which the terminal is currently in effect.

The description of T _{RRCprocessingDalay} and the slot length may refer to the above, and will not be repeated.

Based on the method shown in fig. 6, the terminal may switch BWP after receiving the RRC signaling for indicating BWP switching, and determine the effective time of the minimum available scheduling time interval on the new BWP, which provides a feasibility scheme for determining the effective time of the minimum available scheduling interval on the new BWP by the terminal in the scenario that the RRC signaling indicates the terminal to switch BWP, so as to avoid the problem of inconsistent understanding of the time for starting to enable the minimum available scheduling time interval on the new BWP between the network side and the terminal.

Further, in the first embodiment of the method shown in fig. 6, the method further includes:

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

Therefore, the terminal can start the radio frequency module of the terminal in real time during the scheduling of the same time slot so as to ensure the smooth transmission of the data channel. And when the cross-time slot scheduling is performed, the radio frequency module of the terminal can be closed before the terminal transmits data in the data channel, so that the power consumption of the terminal is reduced, and the energy-saving effect of the terminal is realized.

For easy understanding, the method shown in fig. 6 will be described below with reference to a scenario in which a user browses a web page through a mobile phone, in which a terminal is the mobile phone, a network device is the base station, and the terminal operates on BWP 1.

As shown in fig. 7, after the base station establishes an RRC connection with the mobile phone, the base station sends TDRA a table to the mobile phone and indicates that the mobile phone is operating in BWP1.

When a user requests to browse a webpage through a mobile phone, the mobile phone requests transmission resources to a base station, and under the instruction of DCI1 for scheduling a PUSCH sent by the base station, the mobile phone sends a browse request to the base station at BWP1 according to the request of the user;

The base station receives the browse request, downloads the webpage information from the server and sends the webpage information to the mobile phone through BWP 1;

The mobile phone receives the webpage information returned by the base station and presents the received webpage information to a user for browsing;

When a plurality or a large number of users each receive/transmit data on BWP1, and the data transmitted on BWP1 is overloaded, the base station sends RRC signaling to the mobile phone, informing the mobile phone to switch BWP, and switching the operation BWP of the mobile phone from BWP1 to other relatively idle BWP, such as: BWP 2;

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

Subsequently, when the base station pushes weather prediction to the mobile phone, the mobile phone receives DCI2 for scheduling PDSCH including weather prediction in time slot 1, and then the mobile phone receives PDSCH sent by the base station in time slot 3 or a certain time slot after time slot 3 according to minimum available time slot interval k0=2 of BWP2, and will receive the received information, such as: today's weather: the rain is 22 degrees, please carry the umbrella and present it to the user.

The scheme provided by the embodiment of the application is mainly introduced from the interaction point of each node. It is understood that each node, such as a terminal, a network device, etc., includes corresponding hardware structures and/or software modules for performing each function in order to implement the functions described above. Those of skill in the art will readily appreciate that the various illustrative algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the application can divide the functional modules of the terminal, the network equipment and the like according to the method example, for example, each functional module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

Fig. 8 shows a block diagram of a communication device 80, which communication device 80 may be a terminal, or a chip in a terminal, or a system on a chip, which communication device 80 may be used to perform the functions of the terminal as referred to in the above embodiments. As one implementation, the communication device 80 shown in fig. 8 includes: a switching unit 801, a determining unit 802; further, the communication device 80 may further comprise 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 a BWP activation timer for instructing the terminal to switch from the activated BWP to the default BWP times out. For example, switching unit 801 may support communication apparatus 80 to perform step 301.

A determining unit 802, configured to determine an effective time of the minimum available scheduling interval on the second BWP. For example, the determination unit 802 may support the communication device to perform step 302.

In one possible design, the BWP activation timer timeout comprises: the BWP activation timer times out in the time slot n, n being an integer greater than or equal to 0; the effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th slot; q may be determined from time slot n.

In a possible design, Q is equal toWhere μ _T is the system parameter numerology of the second BWP, μ ₁ is numerology of the first BWP and T _{BWPswitchingDalay} is the completion time of the terminal switching from the first BWP to the second BWP.

In a possible design, Q is equal toWhere μ _T is numerology of the second BWP, μ ₁ is 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 numerology of the second BWP, μ ₁ is numerology of the first BWP, and X is determined according to the subcarrier spacing of the first BWP.

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

A switching unit 801 for switching from the first BWP to the second BWP according to RRC signaling. For example, the switching unit 801 may be configured to support the communication apparatus 80 to perform the action of switching BWP in step 603.

A determining unit 802, configured to determine an effective time of the minimum available scheduling interval on the second BWP. For example, the determining unit 802 may be configured to support the communication device 80 to perform the action of determining the validation time in step 603.

In one possible design, the RRC signaling is carried in PDSCH in time slot n, where n is an integer greater than or equal to 0, and the minimum available scheduling interval on the second BWP is not longer in time than the Q-th time slot.

In a possible design, Q is equal to/>

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

In one possible design, the RRC signaling is carried in PDSCH scheduled by PDCCH in time slots m, m being an integer greater than or equal to 0, the minimum available scheduling interval on the second BWP having an effective time not earlier than the R-th time slot, R being equal to m+x, X being equal toY is the minimum available scheduling interval currently in effect by the terminal, T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the time slot length is the length of one time slot on the second BWP.

Specifically, all relevant contents of each step related to the method embodiment shown in fig. 3 or fig. 6 may be cited in the functional description of the corresponding functional module, which is not described herein. The communication device 80 is used to perform the functions of the terminal in the method of determining the effective time shown in fig. 3 or 6, and thus the same effects as those of the method of determining the effective time described above can be achieved.

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

Wherein the processing module may be a processor or a controller. Which may implement or perform the various exemplary logic blocks, modules and circuits described in connection with this disclosure. A processor may also be a combination that performs computing functions, e.g., including one or more microprocessors, a combination of a DSP and a microprocessor, and so forth. The communication module may be a transceiver circuit or a communication interface, etc. The memory 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 according to the embodiment of the present application may be a communication device shown in fig. 3.

Fig. 9 is a block diagram of a communication system according to an embodiment of the present application, and as shown in fig. 9, the communication system may include: terminal 90, network device.

In one possible design, the terminal 90 is provided with the functionality of the communication device 80 shown in fig. 9.

For example, when a BWP activation timer for indicating a switch from an activated BWP to a default BWP times out, the terminal 90 is configured to switch from the first BWP to the second BWP and determine an effective time of the minimum available scheduling interval on the second BWP.

For another example, the terminal 90 is configured to receive RRC signaling from the network device 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 an effective time of a minimum available scheduling interval on the second BWP.

In particular, in this possible design, the specific implementation process of the terminal 90 may refer to the implementation process of the terminal in the above-mentioned method embodiment of fig. 3 or fig. 6, which is not described herein again.

Based on the communication system shown in fig. 9, the terminal 90 may switch BWP when the BWP activation timer exceeds or RRC signaling indicates BWP switch, and determine the effective time of the minimum available scheduling interval on the new BWP, which provides a feasible scheme for how to determine the effective time of the minimum available scheduling interval on the new BWP in the BWP activation timer timeout or RRC signaling indication BWP switch scenario, so as to avoid the problem of inconsistent time understanding between the network side and the terminal 90 that starts to enable the minimum available scheduling interval on the new BWP.

The embodiment of the application also provides a computer readable storage medium. All or part of the flow in the above method embodiments may be implemented by a computer program to instruct related hardware, where the program may be stored in the above computer readable storage medium, and when the program is executed, the program may include the flow in the above method embodiments. The computer readable storage medium may be the terminal apparatus of any of the foregoing embodiments, such as: the internal storage unit comprises a data transmitting end and/or a data receiving end, such as a hard disk or a memory of the terminal device. The computer-readable storage medium may be an external storage device of the terminal apparatus, for example, a plug-in hard disk, a smart card (SMART MEDIA CARD, SMC), a Secure Digital (SD) card, or a flash memory card (FLASH CARD) provided in the terminal apparatus. Further, the computer-readable storage medium may include both the internal storage unit and the external storage device of the terminal apparatus. The computer-readable storage medium is used for storing the computer program and other programs and data required by the terminal device. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

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

embodiment 1, a method of determining an effective time, comprising:

When a bandwidth portion BWP activation timer times out, the terminal switches from the first BWP to the second BWP, wherein the BWP activation timer is used for indicating the terminal to switch from the activated BWP to the default BWP;

the terminal determines an effective time of a minimum available scheduling interval on the second BWP.

Embodiment 2, the method of embodiment 1, wherein the BWP activation timer timeout comprises:

The BWP activation timer times out in a time slot n, wherein n is an integer greater than or equal to 0;

the effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th time slot;

example 3, the method according to example 2, wherein,

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

Embodiment 4, the method of embodiment 3, wherein,

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

Example 5, the method according to example 2, wherein,

The Q is equal toWherein μ _T is numerology of the second BWP, μ ₁ is numerology of the first BWP, and X is determined according to the subcarrier spacing of the second BWP.

Example 6, the method of example 2, wherein,

The Q is equal toWherein μ _T is numerology of the second BWP, μ ₁ is numerology of the first BWP, and X is determined according to the subcarrier spacing of the first BWP.

Embodiment 7, the method of 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 a subcarrier spacing.

Embodiment 8, the method of embodiment 7, wherein,

When the subcarrier spacing is 15 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.

Example 9, the method according to any one of examples 1-8, wherein,

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

Example 10, the method of any one of examples 1-9, wherein,

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

Example 11, the method according to any one of examples 1-10, wherein,

The terminal receives first configuration information from a network device, the first configuration information including a selectable value of a minimum available scheduling interval of the second BWP;

The terminal determines a 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 of any one of embodiments 1-11, wherein the method further comprises:

the terminal receives a Physical Downlink Control Channel (PDCCH) from the network equipment on the second BWP;

And the terminal demodulates the PDCCH and starts or closes the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

Embodiment 13, a method of determining an effective time, wherein the method comprises:

The terminal receives radio resource control, RRC, signaling from the network device, wherein 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 an effective time of a minimum available scheduling interval on the second BWP.

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

The minimum available scheduling interval on the second BWP is not earlier in effect than the Q-th slot.

Embodiment 15, the method of embodiment 14, wherein,

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

Embodiment 16, the method of embodiment 15, wherein,

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

Embodiment 17, the method of embodiment 14, wherein,

The Q is equal to n+x, the x=max (Y, Z), wherein the Y is equal to 0 and the Z is equal toWherein T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the slot length is the length of one slot on the second BWP.

Embodiment 18, the method of embodiment 13, wherein the RRC signaling is carried in a PDSCH scheduled by a PDCCH, the PDCCH being located in a slot m, the m being an integer greater than or equal to 0,

The minimum available scheduling interval on the second BWP has an effective time not earlier than the R-th slot,

The R is equal to m+X, and the X is equal toAnd the Y is the minimum available scheduling interval currently effective by the terminal, the T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the time slot length is the length of one time slot on the second BWP.

Embodiment 19, the method of any one of embodiments 15-18, wherein,

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

Embodiment 20, the method of any one of embodiments 13-19, wherein the method further comprises:

the terminal receives first configuration information from a network device, the first configuration information including a selectable value of a minimum available scheduling interval of the second BWP;

The terminal determines a 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 of any one of embodiment 21, embodiment 13-embodiment 20, wherein the method further comprises:

the terminal receives a Physical Downlink Control Channel (PDCCH) from the network equipment on the second BWP;

And the terminal demodulates the PDCCH and starts or closes the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

Embodiment 22, a communication device, comprising:

A switching unit configured to switch from a first BWP to a second BWP when a bandwidth part BWP activation timer times out, wherein the BWP activation timer is configured to instruct the terminal to switch from the activated BWP to a default BWP;

And the determining unit is used for determining the effective time of the minimum available scheduling interval on the second BWP.

Embodiment 23, the communication device of embodiment 22, wherein the BWP activation timer timeout comprises:

The BWP activation timer times out in a time slot n, wherein n is an integer greater than or equal to 0;

the effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th time slot;

embodiment 24, the communication device of embodiment 23, wherein,

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

Embodiment 25, the communication device of embodiment 24, wherein,

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

Embodiment 26, the communication device of embodiment 23, wherein,

The Q is equal toWherein μ _T is numerology of the second BWP, μ ₁ is numerology of the first BWP, and X is determined according to the subcarrier spacing of the second BWP.

Embodiment 27, the communication device of embodiment 23, wherein,

The Q is equal toWherein μ _T is numerology of the second BWP, μ ₁ is numerology of the first BWP, and X is determined according to the subcarrier spacing of the first BWP.

Embodiment 28, the communication device of embodiment 26 or embodiment 27, wherein,

The x=max (Y, Z), wherein the Y is equal to 0, and the Z is determined according to a subcarrier spacing.

Embodiment 29, the communication device of embodiment 28, wherein,

When the subcarrier spacing is 15 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 of any of embodiments 22-29, wherein,

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

Embodiment 31, the communication device of any one of embodiments 22-30, wherein,

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

The communication device of any one of embodiment 32 to embodiment 31, wherein the communication device further comprises: a receiving unit;

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

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

The communication device of any one of embodiment 33 to embodiment 22-32, wherein the communication device further comprises: a receiving unit;

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

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

Embodiment 34, a communication device, wherein the communication device includes:

a receiving unit for receiving radio resource control, RRC, signaling from the network device, wherein the RRC signaling is for indicating a handover from the first BWP to the second BWP,

A switching unit for switching from the first BWP to the second BWP according to the RRC signaling;

And the determining unit is used for determining the effective time of the minimum available scheduling interval on the second BWP.

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

The minimum available scheduling interval on the second BWP is not earlier in effect than the Q-th slot.

Embodiment 36, the communication device of embodiment 35, wherein,

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

Embodiment 37, the communication device of embodiment 36, wherein,

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

Embodiment 38, the communication device of embodiment 35, wherein,

The Q is equal to n+x, the x=max (Y, Z), wherein the Y is equal to 0 and the Z is equal toWherein T _{RRCprocessingDalay} is a time for processing RRC signaling, and the slot length is a length of one slot on the second BWP.

Embodiment 39, the communication device of embodiment 34, wherein the RRC signaling is carried in a PDSCH scheduled by a PDCCH, the PDCCH being located in a slot m, the m being an integer greater than or equal to 0,

The minimum available scheduling interval on the second BWP has an effective time not earlier than the R-th slot,

The R is equal to m+X, and the X is equal toThe Y is the minimum available scheduling interval currently in effect, the T _{RRCprocessingDalay} is the time for processing RRC signaling, and the slot length is the length of one slot on the second BWP.

Embodiment 40, the communication device of any one of embodiments 36-39, wherein,

The time to process RRC signaling is 31 ms for the embodiment.

Embodiment 41, the communication device of any one of embodiments 34-40, 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 a minimum available scheduling interval of the second BWP;

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

Embodiment 42, the communication device of any one of embodiment 34-embodiment 41, wherein,

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

The determining unit is further configured to demodulate the PDCCH, and turn on or off a 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:

A network device for transmitting radio resource control, RRC, signaling to a terminal, wherein the RRC signaling is for indicating a handover from a first BWP to a second BWP;

and the terminal is used for receiving the RRC signaling from the network equipment, 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.

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

The minimum available scheduling interval on the second BWP is not earlier in effect than the Q-th slot.

Embodiment 45, the communication system of embodiment 44, wherein,

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

Embodiment 46, the communication system of embodiment 45, wherein,

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

Embodiment 47, the communication system of embodiment 44, wherein,

The Q is equal to n+x, the x=max (Y, Z), wherein the Y is equal to 0 and the Z is equal toWherein T _{RRCprocessingDalay} is a time for processing RRC signaling, and the slot length is a length of one slot on the second BWP.

Embodiment 48 of the communication system of embodiment 43, wherein the RRC signaling is carried in a PDSCH, the PDSCH being scheduled by a PDCCH, the PDCCH being located in a slot m, the m being an integer greater than or equal to 0,

The minimum available scheduling interval on the second BWP has an effective time not earlier than the R-th slot,

The R is equal to m+X, and the X is equal toThe Y is the minimum available scheduling interval currently in effect, the T _{RRCprocessingDalay} is the time for processing RRC signaling, and the slot length is the length of one slot on the second BWP.

Embodiment 49, the communication system of any of embodiments 45-48, wherein,

The time to process RRC signaling is 31 ms for the embodiment.

Embodiment 50, the communication system of any of embodiments 43-49, wherein,

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

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

Embodiment 51, the communication system of any of embodiments 43-50, wherein,

The network equipment is further used for sending 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 off a radio frequency module of the terminal according to a minimum available scheduling interval of the second BWP.

Embodiment 52, a communication device, wherein the communication device includes a processor, a memory, the memory having instructions stored therein; the instructions, when executed by the processor, implement a method of determining an effective time as described in any of embodiments 1-12 or a method of determining an effective time as described in any of embodiments 13-21.

Embodiment 53, a computer-readable storage medium, wherein the computer-readable storage medium comprises computer instructions that, when run on a computer, cause the computer to perform the method of determining a validation time as described in any one of embodiments 1-12 or the method of determining a validation time as described in any one of embodiments 13-21.

Embodiment 63, a computer program product, wherein the computer program product comprises computer instructions that, when run on a computer, cause the computer to perform the method of determining an effective time as described in any of embodiments 1-12 or the method of determining an effective time as described in any of embodiments 13-21.

Embodiment 64, a chip system, comprising: the chip system comprises a processor and a memory, wherein instructions are stored in the memory; the instructions, when executed by the processor, implement a method of determining an effective time as described in any of embodiments 1-12 or a method of determining an effective time as described in any of embodiments 13-21.

It should be noted that the terms "first" and "second" and the like in the description, the claims and the drawings of the present application are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

It should be understood that, in the present application, "at least one (item)" means one or more, "a plurality" means two or more, "at least two (items)" means two or three and three or more, "and/or" for describing an association relationship of an association object, three kinds of relationships may exist, for example, "a and/or B" may mean: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

It should be understood that in embodiments of the present application, "B corresponding to a" means that B is associated with a. For example, B may be determined from a. It should also be appreciated that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. In addition, the "connection" in the embodiment of the present application refers to various connection manners such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in any way.

"Transmission" as used herein refers to bi-directional transmission, including transmitting and/or receiving, unless otherwise specified. Specifically, "transmission" in the embodiment of the present application includes transmission of data, reception of data, or transmission and reception of data. Alternatively, the data transmission herein includes uplink and/or downlink data transmission. The data may comprise channels and/or signals, uplink data transmission, i.e. uplink channel and/or uplink signal transmission, and downlink data transmission, i.e. downlink channel and/or downlink signal transmission. The "network" and the "system" appearing in the embodiments of the present application express the same concept, and the communication system is a communication network.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another apparatus, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

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

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

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be embodied essentially or partly contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing an apparatus, such as: all or part of the steps of the methods described in the various embodiments of the application may be performed by a single-chip microcomputer, chip or the like, or by a processor. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

The foregoing is merely illustrative of specific embodiments of the present application, and the scope of the present application is not limited thereto, but any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (37)

1. A method of determining an effective time, comprising:

Switching from the first BWP to the second BWP when a bandwidth part BWP activation timer is timed out, wherein the BWP activation timer is used for indicating the terminal to switch from the activated BWP to the default BWP;

determining an effective time of a minimum available scheduling interval on the second BWP;

the BWP activation timer timeout includes:

The BWP activation timer times out in a time slot n, wherein n is an integer greater than or equal to 0;

the effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th time slot;

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

2. The method of claim 1, wherein the step of determining the position of the substrate comprises,

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

3. The method according to any one of claims 1-2, wherein,

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

4. The method according to any one of claims 1-2, wherein,

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

5. The method according to any one of claims 1-2, wherein,

Receiving first configuration information, wherein the first configuration information comprises a selectable value of a minimum available scheduling interval of the second BWP;

and 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.

6. The method according to any one of claims 1-2, wherein the method further comprises:

receiving a Physical Downlink Control Channel (PDCCH) on the second BWP;

And demodulating the PDCCH, and starting or closing the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

7. A method of determining an effective time, comprising:

Switching from the first BWP to the second BWP when a bandwidth part BWP activation timer is timed out, wherein the BWP activation timer is used for indicating the terminal to switch from the activated BWP to the default BWP;

determining an effective time of a minimum available scheduling interval on the second BWP;

the BWP activation timer timeout includes:

The BWP activation timer times out in a time slot n, wherein n is an integer greater than or equal to 0;

the effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th time slot;

The Q is equal to Wherein μ _T is numerology of the second BWP, μ ₁ is numerology of the first BWP, and X is determined according to the subcarrier spacing of the second BWP.

8. The method of claim 7, wherein the step of determining the position of the probe is performed,

The x=max (Y, Z), wherein the Y is equal to 0, and the Z is determined according to a subcarrier spacing.

9. The method of claim 8, wherein the step of determining the position of the first electrode is performed,

When the subcarrier spacing is 15 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.

10. The method according to any one of claims 7 to 9, wherein,

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

11. The method according to any one of claims 7 to 9, wherein,

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

12. The method according to any one of claims 7 to 9, wherein,

Receiving first configuration information, wherein the first configuration information comprises a selectable value of a minimum available scheduling interval of the second BWP;

and 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.

13. The method according to any one of claims 7-9, further comprising:

receiving a Physical Downlink Control Channel (PDCCH) on the second BWP;

And demodulating the PDCCH, and starting or closing the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

14. A method of determining an effective time, comprising:

Switching from the first BWP to the second BWP when a bandwidth part BWP activation timer is timed out, wherein the BWP activation timer is used for indicating the terminal to switch from the activated BWP to the default BWP;

determining an effective time of a minimum available scheduling interval on the second BWP;

the BWP activation timer timeout includes:

The BWP activation timer times out in a time slot n, wherein n is an integer greater than or equal to 0;

the effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th time slot;

The Q is equal to Wherein μ _T is numerology of the second BWP, μ ₁ is numerology of the first BWP, and X is determined according to the subcarrier spacing of the first BWP.

15. The method of claim 14, wherein the step of providing the first information comprises,

The x=max (Y, Z), wherein the Y is equal to 0, and the Z is determined according to a subcarrier spacing.

16. The method of claim 15, wherein the step of determining the position of the probe is performed,

When the subcarrier spacing is 15 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.

17. The method according to any one of claims 14 to 16, wherein,

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

18. The method according to any one of claims 14 to 16, wherein,

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

19. The method according to any one of claims 14 to 16, wherein,

Receiving first configuration information, wherein the first configuration information comprises a selectable value of a minimum available scheduling interval of the second BWP;

and 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.

20. The method according to any one of claims 14-16, further comprising:

receiving a Physical Downlink Control Channel (PDCCH) on the second BWP;

And demodulating the PDCCH, and starting or closing the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

21. A method of determining an effective time, the method comprising:

receiving radio resource control, RRC, signaling, wherein the RRC signaling is used to instruct 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 an effective time of a minimum available scheduling interval on the second BWP;

the RRC signaling is carried in a physical downlink shared channel PDSCH, which is located in a slot n, where n is an integer greater than or equal to 0,

The effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th time slot;

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

22. The method of claim 21, wherein the step of determining the position of the probe is performed,

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

23. The method according to any one of claims 21 to 22, wherein,

The time to process RRC signaling is 10 milliseconds.

24. The method according to any one of claims 21-22, further comprising:

Receiving first configuration information, wherein the first configuration information comprises a selectable value of a minimum available scheduling interval of the second BWP;

and 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.

25. The method according to any one of claims 21-22, further comprising:

receiving a Physical Downlink Control Channel (PDCCH) on the second BWP;

And demodulating the PDCCH, and starting or closing the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

26. A method of determining an effective time, the method comprising:

receiving radio resource control, RRC, signaling, wherein the RRC signaling is used to instruct 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 an effective time of a minimum available scheduling interval on the second BWP;

the RRC signaling is carried in a physical downlink shared channel PDSCH, which is located in a slot n, where n is an integer greater than or equal to 0,

The effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th time slot;

the Q is equal to n+x, the x=max (Y, Z), wherein the Y is equal to 0 and the Z is equal to Wherein T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the slot length is the length of one slot on the second BWP.

27. The method of claim 26, wherein the step of determining the position of the probe is performed,

The time to process RRC signaling is 10 milliseconds.

28. The method according to any one of claims 26-27, further comprising:

Receiving first configuration information, wherein the first configuration information comprises a selectable value of a minimum available scheduling interval of the second BWP;

and 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.

29. The method according to any one of claims 26-27, further comprising:

receiving a Physical Downlink Control Channel (PDCCH) on the second BWP;

And demodulating the PDCCH, and starting or closing the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

30. A method of determining an effective time, the method comprising:

receiving radio resource control, RRC, signaling, wherein the RRC signaling is used to instruct 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 an effective time of a minimum available scheduling interval on the second BWP;

the RRC signaling is carried in a physical downlink shared channel PDSCH, which is located in a slot n, where n is an integer greater than or equal to 0,

The effective time of the minimum available scheduling interval on the second BWP is not earlier than the Q-th time slot;

The R is equal to m+X, and the X is equal to And the Y is the minimum available scheduling interval currently effective by the terminal, the T _{RRCprocessingDalay} is the time for the terminal to process RRC signaling, and the time slot length is the length of one time slot on the second BWP.

31. The method of claim 30, wherein the step of determining the position of the probe is performed,

The time to process RRC signaling is 10 milliseconds.

32. The method according to any one of claims 30-31, further comprising:

Receiving first configuration information, wherein the first configuration information comprises a selectable value of a minimum available scheduling interval of the second BWP;

and 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.

33. The method according to any one of claims 30-31, further comprising:

receiving a Physical Downlink Control Channel (PDCCH) on the second BWP;

And demodulating the PDCCH, and starting or closing the radio frequency module of the terminal according to the minimum available scheduling interval of the second BWP.

34. A communication device comprising a processor that when executing instructions implements the method of determining an effective time of any one of claims 1-6 or the method of determining an effective time of any one of claims 7-13 or the method of determining an effective time of any one of claims 14-20 or the method of determining an effective time of any one of claims 21-25 or the method of determining an effective time of any one of claims 26-29 or the method of determining an effective time of any one of claims 30-33.

35. A computer readable storage medium comprising computer instructions which, when run on a computer, cause the computer to perform the method of determining an effective time of any one of claims 1 to 6 or the method of determining an effective time of any one of claims 7 to 13 or the method of determining an effective time of any one of claims 14 to 20 or the method of determining an effective time of any one of claims 21 to 25 or the method of determining an effective time of any one of claims 26 to 29 or the method of determining an effective time of any one of claims 30 to 33.

36. A computer program product comprising computer instructions which, when run on a computer, cause the computer to perform the method of determining an effective time as claimed in any one of claims 1 to 6, or the method of determining an effective time as claimed in any one of claims 7 to 13, or the method of determining an effective time as claimed in any one of claims 14 to 20, or the method of determining an effective time as claimed in any one of claims 21 to 25, or the method of determining an effective time as claimed in any one of claims 26 to 29, or the method of determining an effective time as claimed in any one of claims 30 to 33.

37. A chip system, comprising: the system-on-chip comprises a processor which, when executing instructions, implements the method of determining an effective time as claimed in any one of claims 1 to 6 or the method of determining an effective time as claimed in any one of claims 7 to 13 or the method of determining an effective time as claimed in any one of claims 14 to 20 or the method of determining an effective time as claimed in any one of claims 21 to 25 or the method of determining an effective time as claimed in any one of claims 26 to 29 or the method of determining an effective time as claimed in any one of claims 30 to 33.