WO2022206864A1

WO2022206864A1 - Discontinuous reception control method, apparatus and system

Info

Publication number: WO2022206864A1
Application number: PCT/CN2022/084211
Authority: WO
Inventors: 刘南南; 常俊仁; 谢曦; 沙桐; 邝奕如; 徐恒书
Original assignee: 华为技术有限公司
Priority date: 2021-04-02
Filing date: 2022-03-30
Publication date: 2022-10-06
Also published as: CN115175374A

Abstract

The embodiments of the present application provide a discontinuous reception control method, an apparatus and a system, which are used to align active time periods of different terminal devices. The method comprises: first control information is received, the first control information being used to schedule first data, and the first data being multicast data or data transmitted in a multicast manner; alternatively, a first communication apparatus receives the first data, the first data being multicast data or data transmitted in a multicast manner; alternatively, the first communication apparatus receives the first control information and the first data, the first control information being used to schedule the first data, and the first data being multicast data or data transmitted in a multicast manner; and a first timer or a second timer is started or restarted according to a first time, wherein the first timer is used to indicate the duration for the first communication apparatus to receive retransmitted data, and the second timer is used to indicate the duration before the first communication apparatus receives the retransmitted data. The present application is applicable in the technical field of communications.

Description

Discontinuous reception control method, device and system

This application claims the priority of the Chinese patent application with the application number 202110363938.X and the application name "Discontinuous Reception Control Method, Device and System", which was submitted to the State Intellectual Property Office on April 2, 2021, the entire contents of which are by reference Incorporated in this application.

technical field

The present application relates to the field of communication technologies, and in particular, to a discontinuous reception control method, device, and system.

Background technique

In the wireless communication system, in order to save the power consumption of the terminal equipment on the premise of ensuring the effective transmission of data, a discontinuous reception (DRX) mechanism is introduced to control the terminal equipment to monitor the physical downlink control channel (physical downlink control channel). channel, PDCCH) behavior. A terminal device configured with a DRX mechanism can enter a "sleep state" (also known as an inactive period (opportunity for DRX)). Among them, the terminal device in the "sleep state" does not monitor the PDCCH. When it needs to monitor the PDCCH, it wakes up from the sleep state, enters the active time period, and monitors the PDCCH during the active time period, so that the terminal can be The device achieves the purpose of saving power. At present, the activation time period consists of the on-duration time period after the inactive time period and the activation extension time period that may occur subsequently. An active period and an inactive period constitute a DRX cycle.

For unicast, in the DRX mechanism, the activation extension period that may occur within the activation period is determined by at least one of InactivityTimer and RetransmissionTimerDL, where RetransmissionTimerDL only expires when the HARQ-RTT-TimerDL times out and the terminal device fails to decode the data received this time. Therefore, the activation or restart of drx-RetransmissionTimerDL or drx-HARQ-RTT-TimerDL and/or the time of activation or restart will affect the activation extension period that may occur after the on duration period, which in turn affects the activation period and The end device receives data during the activation time period.

Currently, there is no standard definition for multicast and broadcast services (MBS) in new radio (NR) systems, or for scenarios that support multicast or broadcast mode, such as vehicle to everthing , V2X) scenarios, how the DRX mechanism works. Therefore, if the DRX mechanism in unicast is applied to MBS or V2X, for multicast and/or broadcast, how to align the activation time periods of different terminal devices is an urgent problem to be solved at present.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a discontinuous reception control method, apparatus, and system, which are used to solve the problem of how to align the activation time periods of different terminal devices.

To achieve the above object, the embodiments of the present application adopt the following technical solutions:

A first aspect provides a discontinuous reception control method, the method includes: a first communication device receives first control information, the first control information is used to schedule first data, and the first data is multicast data or multicast data or, the first communication device receives the first data, and the first data is multicast data or data transmitted in a multicast mode; or, the first communication device receives the first control information and the first data, the first The control information is used to schedule first data, and the first data is multicast data or data transmitted in a multicast manner; the first communication device starts or restarts the first timer or the second timer according to the first time; wherein, the first The timer is used to instruct the first communication apparatus to receive the retransmitted data; the second timer is used to indicate the time period before the first communication apparatus receives the retransmitted data. Based on the discontinuous reception control method provided by the embodiment of the present application, the first communication device that receives data can start or restart the first timer or the second timer according to the first time. Compared with the existing DRX mechanism, it can align the The start or restart time of the first timer or the second timer, thereby aligning the activation times of different communication devices.

With reference to the above-mentioned first aspect, in a possible design, the first communication device starting or restarting the first timer or the second timer according to the first time includes: the first communication device starting or restarting the first timer at the first time or a second timer; or, the first communication device starts or restarts the first timer after or before the mth time domain resource or before the mth time domain resource or after the mth time domain resource or the second timer, m is a positive integer greater than or equal to 1.

In a second aspect, a discontinuous reception control method is provided, the method includes: a first communication device receives first control information, the first control information is used to schedule first data, and the first data is multicast data or multicast data or, the first communication device receives the first data, and the first data is multicast data or data transmitted in a multicast mode; or, the first communication device receives the first control information and the first data, the first The control information is used to schedule the first data, and the first data is multicast data or data transmitted in a multicast mode; the first communication device controls the duration of the first timer according to the first time; wherein, the first timer is used to indicate the first timer. The length of time a communication device receives retransmitted data. Based on the discontinuous reception control method provided in this embodiment of the present application, the first communication device may control the duration of the first timer according to the first time. It can be understood that in the group where the first communication device is located, all communication devices also The first time controls the duration of the first timer, so as to align the end time of the first timer by controlling the duration of the first timer, thereby aligning the activation end times of different communication devices.

With reference to the above second aspect, in a possible design, the first communication device controls the duration of the first timer according to the first time, including: the start or restart time of the first timer or the second timer is earlier than the time of the first timer or the second timer. time, the first communication device extends the duration of the first timer by the first duration; or, if the start or restart time of the first timer or the second timer is later than the first time, the first communication device extends the first timer The duration of the timer is reduced by the first duration; wherein the second timer is used to indicate the duration before the first communication apparatus receives the retransmitted data.

With reference to the above second aspect, in a possible design, the first duration is the duration between the start or restart time of the first timer or the second timer and the first time.

With reference to the above-mentioned second aspect, in a possible design, the method further includes: the first communication device sends the HARQ feedback of the first hybrid automatic repeat request; the first communication device starts or restarts the first timer or the second timer ; wherein, the first HARQ feedback is associated with the first data.

In a third aspect, a discontinuous reception control method is provided, the method comprising: a first communication device receiving first control information, where the first control information is used to schedule first data; and/or, the first communication device receiving the first control information data; the first communication device determines not to transmit the first hybrid automatic repeat request HARQ feedback, and the first HARQ feedback is associated with the first data; the first communication device starts or restarts the first timer or the second timer according to the first time ; wherein, the first timer is used to instruct the first communication device to receive the retransmitted data; the second timer is used to instruct the first communication device to receive the retransmitted data. Based on this solution, after the first communication device determines not to transmit HARQ feedback, it starts or restarts the first timer or the second timer according to the first time, so that data can be received during the start or restart of the first timer. However, according to the existing unicast DRX mechanism, after the first communication apparatus determines not to transmit HARQ feedback, it cannot start or restart the first timer or the second timer because the feedback signal is not sent. Therefore, this solution solves the problem that in the existing unicast DRX mechanism, after the first communication device determines not to transmit HARQ feedback, it cannot receive data that may be sent subsequently.

With reference to the above third aspect, in a possible design, the transmission of the first HARQ feedback collides with the first transmission; or, the transmission of the first HARQ feedback collides with the first reception.

With reference to the above third aspect, in a possible design, the priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first transmission; or, the priority corresponding to the transmission of the first HARQ feedback is lower than the priority of the first transmission receive the corresponding priority.

With reference to the above third aspect, in a possible design, the first transmission includes any one or more of the following: transmission of the second HARQ feedback, transmission of the first data, and transmission of the first sidelink.

With reference to the above third aspect, in a possible design, the first receiving includes any one or more of the following: receiving a third HARQ feedback.

With reference to the above third aspect, in a possible design, the first communication device starting or restarting the first timer or the second timer according to the first time includes: the first communication device starting or restarting the first timer at the first time or a second timer; or, the first communication device starts or restarts the first timer after or before the mth time domain resource or before the mth time domain resource or after the mth time domain resource or the second timer, m is a positive integer greater than or equal to 1.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the first control information is transmitted in a unicast manner, or the first control information is transmitted in a multicast manner.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the first time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or the time domain position of the first feedback resource. After the time domain position; or, the first time includes the xth time domain resource after or before the time domain position of the first feedback resource or before the xth time domain resource or after the xth time domain resource; or, the first The time includes the time domain position of the first transmission resource or before the time domain position of the first transmission resource or after the time domain position of the first transmission resource; or, the first time includes the time domain position after or before the first transmission resource. y time-domain resources or before the y-th time-domain resource or after the y-th time-domain resource; wherein, the first feedback resource is associated with the first data, and the first transmission resource includes the transmission of the first control information or the first data. resource.

With reference to the above-mentioned first aspect, second aspect or third aspect, in a possible design, the method further includes: the first communication device obtains indication information; the first communication device determines the first time according to the indication information; the indication information includes Any one or more of the following: information on the first feedback resource set, information on the first identifier, information on the first feedback resource, and information on the first transmission resource; wherein the first feedback resource set includes feedback corresponding to the first data resource.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the method further includes: the first feedback resource set includes the first feedback resource.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the indication information further includes: information of x, or information of y.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the first identifier includes an identifier of the communication device corresponding to the first feedback resource, or the first identifier includes an identifier of the first feedback resource; Or, the first identification includes the number of communication devices that receive the first data.

With reference to the above first aspect, the second aspect or the third aspect, in a possible design, the first feedback resource is associated with the first communication apparatus.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the time domain positions of the feedback resources corresponding to different communication apparatuses that receive the first data are different.

With reference to the first aspect, the second aspect or the third aspect, the time domain positions of the feedback resources corresponding to different communication apparatuses that receive the first data are the same.

In combination with the above-mentioned first aspect, second aspect or third aspect, the first time includes after or before the second time, and the duration from the second time is the time of the first time interval or before or after the time; or, the first time The time includes after or before the second time, and the duration from the second time is the zth time domain resource after or before the time of the first time interval or before the zth time domain resource or after the zth time domain resource.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the method further includes: the first communication device obtains indication information; the first communication device determines the first time according to the indication information; The information includes any one or more of the following: information of the second time, information of the first time interval.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the indication information further includes: z information.

With reference to the first aspect, the second aspect, or the third aspect, in a possible design, the second time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or the time domain position of the first feedback resource. After the time domain position, or, the second time includes the xth time domain resource after or before the time domain position of the first feedback resource or before the xth time domain resource or after the xth time domain resource; wherein, the first The feedback resource is associated with the first data.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the information of the second time includes any one or more of the following: the information of the first feedback resource set, the information of the first identification, The information of the first feedback resource, the information of x.

With reference to the above first aspect, the second aspect or the third aspect, in a possible design, the first feedback resource set includes the first feedback resource.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the time domain positions of the feedback resources corresponding to different communication apparatuses that receive the first data are the same.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the second time includes the time domain position of the first transmission resource or before the time domain position of the first transmission resource or the time domain position of the first transmission resource. After the time domain position, or, the first time includes the yth time domain resource after or before the time domain position of the first transmission resource or before the yth time domain resource or after the yth time domain resource; wherein, the first The transmission resources include resources for transmitting first control information or first data.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the first communication apparatus acquires indication information, where the indication information includes information of the first time. The first communication device determines the first time according to the indication information.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the first time includes the wth time domain resource or the wth time domain before or after the time domain position of the first feedback resource Before the resource or after the wth time domain resource; wherein, the first feedback resource is associated with the first communication device.

With reference to the above-mentioned first aspect, second aspect or third aspect, in a possible design, the method further includes: the first communication device obtains indication information; the first communication device determines the first time according to the indication information; the indication information includes The information of the first feedback resource, and/or the information of W.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the time domain positions of the feedback resources corresponding to different communication devices that receive the first data are the same; or, different communication devices that receive the first data The corresponding feedback resources are located within the same time domain resources.

With reference to the first aspect, the second aspect or the third aspect, in a possible design, the second timer times out, and the first timer is started or restarted.

In a fourth aspect, a first communication apparatus is provided for implementing the above method. The first communication apparatus includes corresponding modules, units, or means (means) for implementing the above method, and the modules, units, or means may be implemented by hardware, software, or hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the above fourth aspect, in a possible design, the first communication device includes: a transceiver module and a processing module; the transceiver module is used to receive the first control information, and the first control information is used to schedule the first data, The first data is multicast data or data transmitted in a multicast mode; or, receiving the first data, the first data is multicast data or data transmitted in a multicast mode; or, receiving the first control information and the first data , the first control information is used to schedule the first data, and the first data is multicast data or data transmitted in a multicast mode; the processing module is used to start or restart the first timer or the second timer according to the first time ; wherein, the first timer is used to indicate the duration of the transceiver module to receive the retransmitted data; the second timer is used to indicate the duration before the transceiver module receives the retransmitted data.

With reference to the above fourth aspect, in a possible implementation manner, the processing module may be a processor, and the transceiver module may be a transceiver.

In combination with the above fourth aspect, in a possible design, the processing module starting or restarting the first timer or the second timer according to the first time includes: the processing module starting or restarting the first timer or the second timer at the first time timer; or, the processing module starts or restarts the first timer or the second timer after the first time or before the mth time domain resource or before the mth time domain resource or after the mth time domain resource, m is a positive integer greater than or equal to 1.

In a fifth aspect, a first communication apparatus is provided for implementing the above method. The first communication apparatus includes corresponding modules, units, or means (means) for implementing the above method, and the modules, units, or means may be implemented by hardware, software, or hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the fifth aspect, in a possible design, the first communication device includes: a transceiver module and a processing module; the transceiver module is used to receive first control information, and the first control information is used to schedule the first data, The first data is multicast data or data transmitted in a multicast mode; or, receiving the first data, the first data is multicast data or data transmitted in a multicast mode; or, receiving the first control information and the first data , the first control information is used to schedule the first data, and the first data is multicast data or data transmitted in a multicast mode; the processing module is used to control the duration of the first timer according to the first time; wherein, the first The timer is used to indicate the duration of the first communication apparatus to receive the retransmitted data.

With reference to the fifth aspect, in a possible implementation manner, the processing module may be a processor, and the transceiver module may be a transceiver.

With reference to the fifth aspect, in a possible design, the processing module is configured to control the duration of the first timer according to the first time, including: the start or restart time of the first timer or the second timer is earlier than the time of the first timer or the second timer. time, the first communication device extends the duration of the first timer by the first duration; or, if the start or restart time of the first timer or the second timer is later than the first time, the first communication device extends the first timer The duration of the timer is reduced by the first duration; wherein, the second timer is used to indicate the duration of waiting before the first communication apparatus receives the retransmitted data.

With reference to the fifth aspect, in a possible design, the first duration is the duration between the start or restart time of the first timer or the second timer and the first time.

With reference to the fifth aspect, in a possible design, the transceiver module is also used to send the HARQ feedback of the first hybrid automatic repeat request; the processing module is also used to start or restart the first timer or the second timer The device; wherein the first HARQ feedback is associated with the first data.

In a sixth aspect, a first communication apparatus is provided for implementing the above method. The first communication apparatus includes corresponding modules, units, or means (means) for implementing the above method, and the modules, units, or means may be implemented by hardware, software, or hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the sixth aspect, in a possible design, the first communication device includes: a transceiver module and a processing module; the transceiver module is used to receive first control information, and the first control information is used to schedule the first data; and/or, receiving the first data; the processing module is configured to determine not to transmit the HARQ feedback of the first hybrid automatic repeat request, and the first HARQ feedback is associated with the first data; Start or restart the first timer or the second timer; wherein the first timer is used to instruct the first communication device to receive the retransmitted data; the second timer is used to instruct the first communication device to receive the retransmitted data. duration.

With reference to the above sixth aspect, in a possible implementation manner, the processing module may be a processor, and the transceiver module may be a transceiver.

With reference to the sixth aspect, in a possible implementation manner, the transmission of the first HARQ feedback collides with the first transmission; or, the transmission of the first HARQ feedback collides with the first reception.

With reference to the above sixth aspect, in a possible implementation manner, the priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first transmission; or, the priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first transmission. One receives the corresponding priority.

With reference to the sixth aspect, in a possible implementation manner, the first transmission includes any one or more of the following: transmission of the second HARQ feedback, transmission of the first data, and transmission of the first sidelink.

With reference to the above sixth aspect, in a possible implementation manner, the first receiving includes any one or more of the following: receiving a third HARQ feedback.

With reference to the sixth aspect, in a possible design, the processing module configured to start or restart the first timer or the second timer according to the first time includes: the processing module is configured to start or restart at the first time The first timer or the second timer; or, the processing module is configured to start or restart the first time domain resource after the first time or before the mth time domain resource or after the mth time domain resource Timer or second timer, m is a positive integer greater than or equal to 1.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the first control information is transmitted in a unicast manner, or the first control information is transmitted in a multicast manner.

With reference to the fourth aspect, the fifth aspect, or the sixth aspect, in a possible design, the first time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or the time domain of the first feedback resource. After the time domain position; or, the first time includes the xth time domain resource after or before the time domain position of the first feedback resource or before the xth time domain resource or after the xth time domain resource; or, the first The time includes the time domain position of the first transmission resource or before the time domain position of the first transmission resource or after the time domain position of the first transmission resource; or, the first time includes the time domain position after or before the first transmission resource. y time-domain resources or before the y-th time-domain resource or after the y-th time-domain resource; wherein, the first feedback resource is associated with the first data, and the first transmission resource includes the transmission of the first control information or the first data. resource.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the method further includes: the first communication device obtains indication information; the first communication device determines the first time according to the indication information; the indication information includes Any one or more of the following: information on the first feedback resource set, information on the first identifier, information on the first feedback resource, and information on the first transmission resource; wherein the first feedback resource set includes feedback corresponding to the first data resource.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the method further includes: the first feedback resource set includes the first feedback resource.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the indication information further includes: information of x, or information of y.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the first identifier includes an identifier of the communication device corresponding to the first feedback resource, or the first identifier includes an identifier of the first feedback resource; Or, the first identification includes the number of communication devices that receive the first data.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the first feedback resource is associated with the first communication apparatus.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the time domain positions of the feedback resources corresponding to different communication apparatuses that receive the first data are different.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, the time domain positions of the feedback resources corresponding to different communication apparatuses that receive the first data are the same.

In combination with the above fourth aspect, fifth aspect or sixth aspect, the first time includes after or before the second time, and the duration from the second time is the time of the first time interval or before or after the time; or, the first time The time includes after or before the second time, and the duration from the second time is the zth time domain resource after or before the time of the first time interval or before the zth time domain resource or after the zth time domain resource.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the method further includes: the first communication device obtains indication information; the first communication device determines the first time according to the indication information; The information includes any one or more of the following: information of the second time, information of the first time interval.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the indication information further includes: z information.

With reference to the fourth aspect, the fifth aspect, or the sixth aspect, in a possible design, the second time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or the first feedback resource. After the time domain position, or, the second time includes the xth time domain resource after or before the time domain position of the first feedback resource or before the xth time domain resource or after the xth time domain resource; wherein, the first The feedback resource is associated with the first data.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the information of the second time includes any one or more of the following: the information of the first feedback resource set, the information of the first identification, The information of the first feedback resource, the information of x.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the first feedback resource set includes the first feedback resource.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the time domain positions of the feedback resources corresponding to different communication apparatuses that receive the first data are the same.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the second time includes the time domain position of the first transmission resource or before the time domain position of the first transmission resource or the time domain position of the first transmission resource. After the time domain position, or, the first time includes the yth time domain resource after or before the time domain position of the first transmission resource or before the yth time domain resource or after the yth time domain resource; wherein, the first The transmission resources include resources for transmitting first control information or first data.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the first communication apparatus acquires indication information, and the indication information includes information of the first time. The first communication device determines the first time according to the indication information.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the first time includes the wth time domain resource or the wth time domain before or after the time domain position of the first feedback resource Before the resource or after the wth time domain resource; wherein, the first feedback resource is associated with the first communication device.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the method further includes: the first communication device obtains indication information; the first communication device determines the first time according to the indication information; the indication information includes The information of the first feedback resource, and/or the information of W.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the time domain positions of the feedback resources corresponding to different communication devices receiving the first data are the same; or, different communication devices receiving the first data The corresponding feedback resources are located within the same time domain resources.

With reference to the fourth aspect, the fifth aspect or the sixth aspect, in a possible design, the second timer times out, and the first timer is started or restarted.

Wherein, the technical effect brought by any one of the design methods in the fourth aspect, the fifth aspect or the sixth aspect can refer to the technical effects brought by the different design methods in the above-mentioned first aspect, the second aspect or the third aspect , and will not be repeated here.

In a seventh aspect, a first communication device is provided, comprising: a processor and a memory; the memory is used to store computer-executed instructions, and when the first device is running, the processor executes the computer-executed instructions stored in the memory, so that the first device executes the discontinuous reception control method according to any one of the above-mentioned first aspects.

In an eighth aspect, a first communication device is provided, comprising: a processor; the processor is configured to be coupled to a memory, and after reading an instruction in the memory, execute any one of the above-mentioned first aspects according to the instruction The discontinuous reception control method.

In a ninth aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, so that when the computer-readable storage medium runs on a computer, the computer can execute the discontinuous sequence described in any one of the above-mentioned first aspects. Receive control method.

In a tenth aspect, there is provided a computer program product containing instructions, which, when executed on a computer, enable the computer to execute the discontinuous reception control method according to any one of the above-mentioned first aspects.

An eleventh aspect provides an apparatus (for example, the apparatus may be a system-on-a-chip), the apparatus includes a processor for supporting the first communication apparatus to implement the above-mentioned first aspect, second aspect or third aspect In a possible design, the device further includes a memory for storing necessary program instructions and data of the first communication device. When the device is a system-on-chip, it may be composed of chips, or may include chips and other discrete devices.

Wherein, the technical effect brought by any one of the design methods in the seventh aspect to the eleventh aspect can refer to the technical effect brought by different design methods in the first aspect, the second aspect or the third aspect. Repeat.

Description of drawings

1 is a schematic diagram of a DRX cycle provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of the architecture of a next-generation wireless access network system according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 5 is another schematic structural diagram of a communication device provided by an embodiment of the present application;

6 is a schematic flowchart of a discontinuous reception control method provided by an embodiment of the present application;

FIG. 7a is a schematic diagram of a time domain location of a first feedback resource according to an embodiment of the present application;

FIG. 7b is a schematic diagram of a time domain location of a first transmission resource according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a time domain location of another first feedback resource provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of frequency division of feedback resources according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a time domain position sequence diagram of a first feedback resource in a feedback resource according to an embodiment of the present application;

11 is a schematic flowchart of another discontinuous reception control method provided by an embodiment of the present application;

12 is a schematic diagram of a first time and a first duration provided by an embodiment of the present application;

13 is a schematic flowchart of another discontinuous reception control method provided by an embodiment of the present application;

FIG. 14 is another schematic structural diagram of a communication apparatus provided by an embodiment of the present application.

Detailed ways

The embodiments provided in this application can be applied to the MBS topic and the V2X topic, but are not limited thereto. In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief introduction of the related technologies of the present application is first given as follows.

1. MBS.

Transmission mode of MBS: For the transmission of MBS services/data, there may be any one or more of the following transmission modes: dynamic transmission mode and/or configuration transmission mode.

The dynamic transmission mode includes a point-to-point (Point-to-Point, PTP) transmission mode and/or a PTM transmission mode.

PTP transmission mode: In this transmission mode, the sender sends a piece of data to a receiver. The PTP transmission mode can be understood as: (the network device) uses the terminal device-specific Radio Network Temporary Identity (RNTI) (for example, the cell radio network temporary identifier (Cell-RNTI, C-RNTI), the first RNTI) scrambled PDCCH/Downlink control information (Downlink control information, DCI) (for terminal equipment) scheduling terminal equipment-specific RNTI (for example, C-RNTI, first RNTI) scrambled physical downlink shared channel (Physical downlink shared channel) channel, PDSCH). The PTP transmission mode may also be referred to as the C+C transmission mode.

In this application, DCI may be replaced by PDCCH, and PDCCH may be replaced by DCI.

In this application, RNTI scrambled PDCCH/DCI/control information may be understood as: cyclic redundancy check (CRC) of RNTI scrambled PDCCH/DCI/control information, or, cyclic redundancy check (CRC) of PDCCH/DCI/control information CRC is scrambled by RNTI (PDCCH/DCI/control information with CRC scrambled by RNTI).

PTM transmission mode: Through the PTM transmission mode, the sender can send a piece of data to multiple receivers.

The PTM transmission method may include the first PTM transmission method and/or the second PTM transmission method:

The first PTM transmission mode can be understood as: (the network device) schedules the common RNTI ( For example, G-RNTI, second RNTI) scrambled PDSCH. Or it can be understood that the network side scrambles a DCI through a common RNTI, and the DCI is used to schedule a piece of data scrambled through a common RNTI. In this case, multiple communication devices receive the same DCI, and there are many The data received by each communication device is the same.

The first PTM transmission mode may also be called a G+G transmission mode.

The second PTM transmission mode can be understood as: (the network device) schedules a common RNTI (eg, G - RNTI, second RNTI) scrambled PDSCH. Or it can be understood in this way that each communication device in the plurality of communication devices respectively receives a DCI scrambled by a specific RNTI, but these DCIs are used to schedule the same data, that is, although the DCIs received by each communication device are different. The same, but the data received by the plurality of communication devices are the same.

The second PTM transmission mode may also be referred to as the C+G transmission mode.

For example, PDSCH can also be understood as data.

The configuration transmission mode can be understood as: (the network device) transmits data/multicast data on the configuration resource (to the terminal device); or, (the terminal device) receives the data/multicast data (sent by the network device) on the configuration resource.

The configuration transport mode can also be referred to as a semi-static transport mode.

Configuration resources may also be called semi-persistent scheduling (Semi-Persistent Scheduling, SPS) resources.

MBS HARQ: NR MBS supports hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ).

2. Multicast and unicast.

Multicast may include any one or more of the following: Multimedia Broadcast Multicast Service (MBMS) or broadcast in MBS; Multicast in MBMS or MBS; Multicast in MBMS or MBS; multicast; multicast in V2X; broadcast in V2X; multicast; broadcast; multicast; groupcast; broadcast.

The multicast service may include/replace with any one or more of the following: broadcast service, multicast service, MBS service, MBS broadcast service, MBS multicast service, V2X multicast service, and V2X broadcast service.

The data corresponding to the multicast service may be called multicast data.

Unicast may include any one or more of the following: unicast in V2X; unicast. Optionally, unicast can be understood as unicast transmission.

In this embodiment of the present application, the multicast mode may also include/replace with a multicast mode or a broadcast mode. In the description, the multicast mode is taken as an example for description.

3. DRX.

As described above, DRX is used to control the behavior of the terminal equipment to monitor the PDCCH, which can save the power consumption of the terminal equipment on the premise that the data can be effectively transmitted. When configuring DRX for a terminal device, the terminal device can enter the sleep period at certain times. At this time, the terminal device is in a "sleep state", and the terminal device does not need to continuously monitor the PDCCH. ", wake up and enter the "active state", that is, enter the active period. In this way, the terminal device can achieve the purpose of saving power.

A typical DRX cycle is shown in Figure 1:

On-duration: After the terminal device is woken up, the terminal device waits to receive the PDCCH. If the terminal device successfully decodes the PDCCH during the On-duration period, the terminal device will remain in the awake state and prolong the wake-up time by controlling the timers (eg, Inactivity-timer, retransmission timer, RTT timer).

Inactive time period (Opportunity for DRX): This period is the sleep time in DRX, that is, the time when the terminal device enters sleep and does not monitor the PDCCH in order to save power. The longer the time used for DRX sleep, the lower the power consumption of the terminal device, but correspondingly, the delay of service transmission will also increase.

DRX Cycle (DRX Cycle): The repetition period of on-duration, that is, the start or restart time of the next DRX Cycle is the start or restart time of on-duration. A DRX cycle consists of on-duration plus a possible subsequent activation extension period controlled by a timer and an inactive period (Opportunity for DRX).

DRX under unicast:

In the existing DRX, the timers used to control the active state of the terminal device may include (the following explanations for each timer are described by the following examples): OnDuration Timer, InactivityTimer, RetransmissionTimer, that is, during the running period of the above timer, The end device is active.

RetransmissionTimer, which is configured for each downlink HARQ process, can be understood as the maximum duration for the terminal device to receive the expected downlink retransmission data in the retransmission scenario;

HARQ-RTT-Timer, which is also configured for each downlink HARQ process, can be understood as the shortest time that the terminal device needs to wait before receiving the expected downlink retransmission data.

When DRX is configured for a terminal device, in the case of static configuration (configured assignment), the specific processing flow of the terminal device using DRX can be as follows:

1) If the terminal device receives downlink data in the configured downlink allocation during the activation period, then the terminal device starts or restarts the HARQ-RTT-Timer after sending feedback to the network device;

2) If the HARQ-RTT-Timer times out and there is data that has not been successfully decoded in the HARQ process, the terminal device starts or restarts the RetransmissionTimer after the HARQ-RTT-Timer times out to receive retransmission data.

When DRX is configured for a terminal device, in the case of dynamic scheduling, the specific processing flow of the terminal device using DRX can be as follows:

1) The terminal device monitors the PDCCH during the activation period. If the PDCCH indicates that there is downlink transmission, the terminal device can start or restart the HARQ-RTT-Timer after sending feedback to the network device;

3) The terminal device monitors the PDCCH during the activation period. If the PDCCH indicates that there is a new transmission (uplink new transmission or downlink new transmission), the terminal device starts or restarts the InactivityTimer after receiving the PDCCH.

In the unicast DRX mechanism, the activation time period of DRX may include the running time of on duration timer, inactivity timer and RetransmissionTimer. For the convenience of introduction, the HARQ-RTT-Timer may be referred to as the RTT timer, the RetransmissionTimer may be referred to as the retransmission timer, and the running time of the retransmission timer may be referred to as the retransmission activation period, which will be uniformly described here.

4. V2X.

V2X is the key technology of intelligent transportation system and is considered to be one of the fields with the most industrial potential and the clearest market demand in the IoT system. The Internet of Vehicles refers to providing vehicle information through sensors and in-vehicle terminal equipment mounted on the vehicle to realize vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-network (vehicle to network) Network, V2N) and vehicle-to-pedestrian (V2P) communication network.

Generally, in a V2X scenario, a communication link for direct communication between a terminal and other terminals may be called a sidelink (sidelink, SL) or a side link.

Unicast, multicast and broadcast are supported in NR V2X.

5. NACK only and ACK/NACK

NACK only: The communication device does not send feedback if it receives data successfully, and reports NACK if it fails to receive data.

ACK/NACK: The communication device sends ACK when receiving data successfully, and returns NACK when receiving data fails.

6. Unicast PUCCH

6.1: Unicast PUCCH Resource Configuration Mechanism

The network device configures a PUCCH configuration (PUCCH-Config) for each bandwidth part BWP.

For dynamically allocated downlink resources, the PUCCH resource (PUCCH resource) is determined by the following parameters combined with the RRC field:

PDSCH-to-HARQ_feedback timing indicator field in DCI, which indicates the slot interval between PUCCH feedback resources and PDSCH.

The PUCCH resource indicator field in the DCI indicates the time domain and frequency domain location of the PUCCH resource. For example, which symbol/symbols in a slot are transmitted.

For the SPS case, the terminal device determines the PUCCH resource through the following parameters:

The PDSCH-to-HARQ_feedback timing indicator field in the DCI, combined with the n1PUCCH-AN parameter in the RRC signaling, indicates the PUCCH resource ID (PUCCH-ResourceId), which refers to the PUCCH resource configured by the network device for the terminal device. Numbering.

6.2: Unicast PUCCH Transmission Mechanism

When the PUCCH and the PUSCH collide/overlap, the PUCCH may be routed to the PUSCH.

In ultra-reliable and low latency communications (URLLC):

For PUCCH, if PUCCHs with different priorities collide in the time domain, PUCCHs with lower priorities are dropped.

7. HARQ feedback is dropped

Currently, HARQ feedback is dropped in the following cases:

Case 1: Conflict between MBS HARQ feedback and unicast HARQ feedback/unicast PUSCH:

The PUCCH resource used by the terminal device for sending MBS HARQ feedback and the PUCCH resource used for sending unicast HARQ feedback, or conflict with the unicast PUSCH resource in the time domain, and the low-priority resource is dropped.

Case 2: Conflict between URLLC HARQ feedback and enhanced mobile broadband (eMBB) HARQ feedback/PUSCH:

The PUCCH resource used by the terminal device to send URLLC HARQ feedback and the PUCCH resource used to send eMBB HARQ feedback, or the eMBB PUSCH resource collides with the eMBB PUSCH resource in the time domain, and the low-priority resource is dropped.

Case 3: Collision of SL transmission and UL transmission (eg, UL HARQ feedback for SL):

In the V2X scenario, the transmission resources used by the terminal device to send control information or data in SL transmission conflict with the transmission resources used for UL transmission (for example, PUCCH resources for sending UL HARQ feedback of SL), and the low-priority resources are dropped .

Case 4: Conflict between the receiving resources of SL HARQ feedback and the transmitting resources of SL HARQ feedback:

In a V2X scenario, a terminal device can receive data while sending data, that is, the same terminal device can both send HARQ feedback for the received first data and receive HARQ feedback for the second data from other terminal devices. When the PSFCH resource used by the terminal device for sending HARQ feedback and the PSFCH resource used for receiving HARQ feedback collide, the resource with low priority is dropped. The PSFCH is a resource on the SL for transmitting HARQ feedback.

It can be seen from the above description that in the existing unicast communication, there is one-to-one communication between the network device and the terminal device, and the activation time periods of the network device and the terminal device are aligned. The following introduces the differences between MBS and unicast, which affect the activation time period in DRX:

Difference point 1: For the case of ACK/NACK, the feedback resources of different terminal devices may not be aligned in the time domain.

In one case, if the terminal device uses the MBS-specific PUCCH configuration (PUCCH-Config), the PUCCH resources of different terminal devices may be misaligned within the slot in the time domain.

In another case, if the terminal device uses the unicast PUCCH-Config, the PUCCH resources of different terminal devices may not be aligned between slots in the time domain. In these two cases, the PUCCH positions of different terminal devices are different in the time domain, and the time for sending feedback is also different. Therefore, the time for different terminal devices to start or restart the RTT timer is different, which leads to the time for the terminal device to start the retransmission timer. different.

Difference 2: In the case of ACK/NACK and NACK only, the PUCCH resources of a terminal device in the multicast group may be multiplexed with other PUCCH resources of the terminal device, or associated with the PUSCH resources of the terminal device. However, other terminal devices in the group do not know that the associated channel or multiplexing has occurred. At this time, the time when the terminal device sends feedback is different from the time when other terminal devices send feedback, so the time for starting or restarting the RTT timer is different, which in turn causes the time when the terminal device and other terminal devices start the retransmission timer to be different.

Difference 3: The receiving status of different terminal devices is different. For the same data, some terminal devices send ACK after receiving, and some terminal devices send NACK after receiving, resulting in different situations in which different terminal devices start or restart the retransmission timer.

Difference point 4: The transmission used to transmit the HARQ feedback may be dropped. After the HARQ feedback is dropped, the terminal equipment will not start or restart the RTT timer. Therefore, if the HARQ feedback of some terminal equipment is dropped, and the HARQ feedback of some terminal equipment is transmitted normally, it will cause different terminal equipment to start or restart the RTT timing. The situation of the retransmission timer is different, which in turn leads to different situations in which the retransmission timer is started or restarted.

Difference 5: For terminal devices that support NACK only, the terminal device does not send ACK when it successfully receives data, and only sends NACK when it fails to receive data. Therefore, a terminal device that supports NACK only does not start or restart the RTT timer when it successfully receives data, and then does not start or restart the retransmission timer, resulting in different situations in which different terminal devices start or restart the retransmission timer.

For example, in MBS, for PTM transmission, each group of multicast services corresponds to a set of DRX configurations.

Based on the differences between the multicast mode and the unicast mode described above, if the unicast DRX mechanism is applied to the DRX mechanism corresponding to the multicast, the activation time periods of different terminal devices will not be aligned.

Further, when the activation times of the terminal devices in the group are not aligned, the following two situations may exist:

Case 1: There is no common intersection between the running times of the retransmission timers of all terminal devices in the group.

Because there is no common intersection, the network device cannot pass a PTM transmission during the running period of the retransmission timers of all the terminal devices in the group, so that all the terminal devices in the group can receive the sent data packets. Therefore, in order for all terminals to receive the data transmitted by the network device, the network device has two possible operations:

Possible operation 1: The network device sends new or retransmitted data packets through PTM transmission during the common intersection of the activation time periods of all terminal devices in the MBS group.

In this DRX cycle, there is no common intersection during the retransmission timers of the terminal devices in the group. In order to implement PTM transmission, the network device needs to send the data packets that should be sent during the retransmission timer of this DRX cycle to the next A DRX cycle is sent to the terminal device during the common intersection of the activation time periods of the terminal devices in the group (that is, during the operation of the on duration timer and the inactivity timer).

It can be seen from the above description that in this possible operation, because the retransmission activation time period controlled by the retransmission timer in this DRX cycle is not aligned, the network device selects the retransmission activation segment that is not in this DRX cycle, but in the next DRX cycle. Therefore, the start of the retransmission timer in this DRX cycle is meaningless, and the terminal device performs meaningless monitoring during the retransmission activation time period; it will lead to power consumption and increase the data transmission delay. .

Possible operation 2: The network device performs multiple PTM transmissions for the same data packet during the running period of the retransmission timer of the terminal devices in the group, so that all terminal devices can receive the same data packet at least once in their respective activation time periods PTM transmission.

Because there is no common intersection, in order for all terminal devices in the group to receive data packets during the running time of the retransmission timer, the network device needs to perform execution during multiple intersection periods according to the different intersections of the running times of the retransmission timers of terminal devices in the group. Multiple PTM transfers. This possible operation requires the network device to transmit data packets multiple times, wasting communication resources.

Case 2: There is a common intersection between the running times of the retransmission timers of all terminal devices in the group;

In this case, the network device can determine the start time of the RTT timer and the start time of the retransmission timer according to the time when the terminal devices in the group send the feedback signal, and then determine the running time of the retransmission timers of all the terminal devices in the group. A common intersection is performed, and during the common intersection, PTM transmission is performed so that all terminal devices in the group can receive the transmitted data packets. However, the common intersection is determined according to the retransmission timer running time of all terminal devices in the group. For each terminal device, it is impossible to receive data packets at different retransmission times outside the common intersection, so the terminal device executes monitoring is meaningless. For example, the retransmission time of terminal device 1 in the group is from 1:00 to 3:00, the retransmission time of terminal device 2 is from 1:30 to 3:30, and the retransmission time of terminal device 3 is from 2:00 to 4:00. The common intersection of the retransmission times of all terminal devices in the group is 2:00 to 3:00, so for terminal device 1, the retransmission time from 1:00 to 2:00 is meaningless monitoring, and the same is true for other terminal devices.

Therefore, to sum up, in the DRX cycle, if the retransmission activation time period/activation time of all terminal devices in an MBS group is aligned, for the network device, a PTM transmission can be used to enable all terminals during the retransmission activation time period. The device can receive the sent data packet, and for the terminal device, the data packet may be received at the full time of the retransmission active period, and there will be no meaningless monitoring. However, if the retransmission activation time period/activation time of all terminal devices in an MBS group in a DRX cycle is not aligned, the possible manner in which the network device transmits data may lead to the adverse effects described above.

It should be noted that the above problem is described by taking the MBS scenario as an example, and the problem in V2X is similar to that, and will not be described here.

Therefore, if the unicast DRX mechanism is applied to the MBS, how to align the activation times of different terminal devices is an urgent problem to be solved at present.

Further, for various situations in which the terminal device determines not to transmit HARQ feedback, if the unicast DRX mechanism is applied to the above-mentioned various situations, the terminal device will not start the RTT timer without transmitting HARQ feedback, and will not start or The monitoring of the retransmission timer is restarted, so the terminal device that determines not to transmit HARQ feedback cannot start the retransmission timer and then receive newly transmitted or retransmitted data packets during the running of the retransmission timer. Therefore, it is necessary to provide a solution that enables the terminal device to receive subsequent data packets that should be transmitted during the running of the retransmission timer when the terminal device determines not to transmit HARQ feedback.

In order to solve the above problems, the present application proposes a discontinuous reception control method, apparatus and system to solve the problem of how to align the activation time periods of different terminal devices.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Wherein, in the description of this application, unless otherwise specified, "/" indicates that the objects associated before and after are an "or" relationship, for example, A/B can indicate A or B; in this application, "and/or" "It is only an association relationship that describes an associated object, which means that there can be three kinds of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A exists , B can be singular or plural. Also, in the description of the present application, unless stated otherwise, "plurality" means two or more than two. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple . In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and the words "first" and "second" are not necessarily different. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiments or designs described in the embodiments of the present application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner to facilitate understanding.

In addition, the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. With the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

The discontinuous reception control method provided in the embodiments of the present application may be applicable to various communication systems. For example, the discontinuous reception control method provided by the embodiments of the present application may be applied to a long term evolution (long term evolution, LTE) system, or a fifth-generation (fifth-generation, 5G) system, or other future-oriented similar new systems. This is not specifically limited in the application examples. Furthermore, the term "system" can be used interchangeably with "network".

The discontinuous reception control method provided by the embodiments of the present application can be applied to a NG-RAN (Next Generation Radio Access Networks, next generation radio access network) system. The overall architecture of NG-RAN is shown in Figure 2. Wherein, an NG-RAN node may be an NR Node B (NR Node B, gNB), which is used to provide NR user plane and control plane protocol terminals to terminal equipment. Alternatively, it can be a next generation eNodeB (ng-eNB), which is used to provide an evolved-universal terrestrial radio access (E-UTRA) user plane and control to terminal equipment surface protocol terminal. The gNB and the ng-eNB are connected through the Xn interface, and the Xn interface is the network interface between the NG-RAN nodes. The gNB or ng-eNB is connected to the 5GC through the NG interface, which is the interface between the NG-RAN node and the 5GC. Specifically, the gNB or ng-eNB is connected to the access and mobility management function (AMF) through the NG-C interface, and is connected to the user plane function (UPF) through the NG-U interface.

As shown in FIG. 3 , a communication system 30 is provided in an embodiment of the present application. The communication system 30 includes a first communication device 40 and a second communication device 50 . It should be understood that FIG. 3 is only an exemplary schematic diagram showing the architecture of the communication system 30 to which the discontinuous reception control method provided by the embodiments of the present application is applied, and it is not limited that the communication system 30 only includes a first communication device 40 or a first communication device 40. Two communication devices 50 . In other words, the communication system 30 may include a plurality of first communication apparatuses 40 and/or a plurality of second communication apparatuses 30, which are not limited in this application, and are described in a unified manner here, and will not be repeated below.

It should be noted that FIG. 3 is only a schematic diagram, although not shown, the communication system 30 may also include other network devices, for example, the communication system 30 may also include core network devices, wireless relay devices and wireless backhaul devices One or more of them are not specifically limited here. The network device may be connected to the core network device in a wireless or wired manner. The core network device and the network device 40 may be independent and different physical devices, or the functions of the core network device and the logical functions of the network device 40 may be integrated on the same physical device, or part of a physical device may be integrated. The functions of the core network device and the functions of part of the network device 40 are not specifically limited in this embodiment of the present application.

Taking the interaction between the first communication device 40 and any second communication device 50 shown in FIG. 3 as an example, in a possible implementation manner, the first communication device 40 receives the first control information from the second communication device 50, The first control information is used to schedule the first data, and the first data is multicast data or data transmitted in a multicast manner; or, the first communication device 40 receives the first data from the second communication device 50, and the first data is multicast data or data transmitted in a multicast manner; or, the first communication device 40 receives first control information and first data from the second communication device 50, the first control information is used to schedule the first data, the first One piece of data is multicast data or data transmitted in a multicast mode; the first communication device 40 starts or restarts the first timer or the second timer according to the first time; wherein the first timer is used to instruct the first communication device 40 The duration of receiving the retransmitted data; the second timer is used to indicate the duration before the first communication apparatus 40 receives the retransmitted data. The specific implementation of the solution will be described in detail in the subsequent method embodiments, which will not be repeated here. Based on the discontinuous reception control method provided by the embodiment of the present application, the first communication device that receives data can start or restart the first timer or the second timer according to the first time. Compared with the existing DRX mechanism, it can align the The start or restart time of the first timer or the second timer, thereby aligning the activation times of different communication devices.

Taking the interaction between the first communication device 40 and any second communication device 50 as an example, in a possible implementation manner, the first communication device 40 receives the first control information from the second communication device 50, and the first control information uses For scheduling the first data, the first data is multicast data or data transmitted in a multicast manner; or, the first communication device 40 receives the first data from the second communication device 50, and the first data is multicast data or data transmitted by multicast; or, the first communication device 40 receives first control information and first data from the second communication device 50, the first control information is used to schedule the first data, and the first data is multicast data or Data transmitted in a multicast mode; the first communication device 40 controls the duration of the first timer according to the first time; wherein the first timer is used to indicate the duration of the first communication device 40 to receive the retransmitted data. Since in this solution, the first communication device 40 can control the duration of the first timer according to the first time, it can be understood that in the group where the first communication device is located, all communication devices also control the first timing according to the first time By adjusting the duration of the first timer, the end time of the first timer is aligned by controlling the duration of the first timer, thereby aligning the activation end time of different communication devices.

Taking the interaction between the first communication device 40 and any second communication device 50 as an example, in a possible implementation manner, the first communication device 40 is configured to receive the first control information from the second communication device 50, and the first control The information is used to schedule the first data; and/or the first communication device 40 is used to receive the first data from the second communication device 50 . The first communication device 40 is further configured to determine not to transmit the first HARQ feedback, where the first HARQ feedback is associated with the first data. The first communication device 40 is further configured to start or restart the first timer or the second timer according to the first time; wherein the first timer is used to instruct the first communication device 40 to receive the retransmission data of the first data; The second timer is used to indicate the time period before the first communication apparatus 40 receives the retransmitted data of the first data. In this solution, after the first communication device determines not to transmit HARQ feedback, it will also start or restart the first timer or the second timer according to the first time, so that data can be received during the start or restart of the first timer, while In the prior art, after the first communication apparatus determines not to transmit the HARQ feedback, it does not start or restart the first timer or the second timer because the feedback signal is not sent. Therefore, this solution solves the problem in the prior art that after the first communication apparatus determines not to transmit HARQ feedback, it cannot receive data that may be sent subsequently.

Optionally, the second communication device in the embodiment of the present application may be a network device, and the network device is a device that accesses a terminal device to a wireless network, and may be a base station, a fourth-generation mobile communication technology ( Evolved NodeB (eNodeB), transmission reception point (TRP) in 4th generation, 4G) system, next generation NodeB (gNB) in 5G mobile communication system, future mobile communication system A base station in a wireless fidelity (wireless-fidelity, Wi-Fi) system, or an access node in a wireless-fidelity (Wi-Fi) system, also includes a transmission node, a transceiver node, a relay device, or a small station or micro station with base station functions; it can also be A module or unit that completes part of the functions of the base station, for example, can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU). The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. In this application, unless otherwise specified, network equipment refers to wireless access network equipment.

Optionally, the first communication device or the second communication device in this embodiment of the present application may be a terminal device, and the terminal device may refer to an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a relay station, a remote station, a remote station, Terminal, mobile device, user terminal (user terminal), user equipment (User Equipment, UE), terminal (terminal), wireless communication device, user agent, user equipment, cellular phone, cordless phone, session initiation protocol (session initiation protocol, SIP) telephones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices , laptop computer, wearable device, machine type communication terminal, terminal device in the future 5G network or terminal device in the future evolved PLMN or terminal device in the future Internet of Vehicles, etc. This embodiment of the present application does not limit this. .

The discontinuous reception control method provided by the embodiment of the present application will be described in detail below with reference to FIG. 1 to FIG. 5 .

It should be noted that the names of messages between network elements or the names of parameters in the messages in the following embodiments of the present application are just an example, and other names may also be used in specific implementations, which are not specified in the embodiments of the present application. limited.

As shown in FIG. 6, a discontinuous reception control method provided by an embodiment of the present application includes the following steps S601-S602:

S601. The first communication device receives first control information, where the first control information is used to schedule first data, and the first data is multicast data or data transmitted in a multicast manner; or, the first communication device receives the first data, The first data is multicast data or data transmitted in a multicast manner; or, the first communication device receives first control information and first data, the first control information is used to schedule the first data, and the first data is multicast data or data transmitted by multicast. Correspondingly, the second communication device sends first control information, the first control information is used to schedule the first data, and the first data is multicast data or data transmitted in a multicast mode; or, the second communication device sends the first data , the first data is multicast data or data transmitted in a multicast mode; or, the second communication device sends first control information and first data, the first control information is used to schedule the first data, and the first data is multicast data or data transmitted by multicast.

First, to facilitate understanding, some concepts in step S601 are described.

In this embodiment of the present application, the first control information may include/understand any one or several of the following:

(1) First DCI.

In the MBS scenario, the first control information may be DCI. Exemplarily, the first DCI is used to schedule first data, where the first data is downlink data, and the first data is multicast data or data transmitted in a multicast manner. The first communication device is a terminal device, and the second communication device is a network device.

(2) The first SCI.

In a V2X scenario, the first control information may be SCI. Exemplarily, the first SCI is used to schedule first data, the first data is SL data, and the first data is multicast data. The first communication apparatus and the second communication apparatus may be terminal equipment.

It should be noted that the first control information can also be replaced by the second information or the first DCI, etc., which is not limited in this application, and the first control information may change with the evolution of the communication system, and this application does not limit its certain for DCI or SCI.

Optionally, the first control information is transmitted in a unicast manner, or the first control information is transmitted in a multicast manner.

For example, the first control information is the first DCI, the first DCI is transmitted in a unicast manner, or the first DCI is transmitted in a multicast manner.

The first control information transmitted in a unicast manner or the first control information transmitted in a unicast manner may include/understand any one or any of the following:

(1) The first control information is transmitted on a first resource, where the first resource is a resource associated with unicast.

For example, it may be understood that the first resource is a resource associated with unicast: the first resource is in a BWP corresponding to unicast.

For example, the first resource may be a PDCCH resource.

(2) The first control information is scrambled by the first RNTI.

The first RNTI may be used for any one or more of the following: for unicast, for scheduling dynamic resources, for retransmission resources of dynamic resources, for activating configuration resources, for reactivating configuration resources, for Deactivation of configuration resources, retransmission resources used for scheduling configuration resources, used for scrambling (eg, for scrambling PDCCH or PDSCH).

Exemplarily, the first RNTI may be a C-RNTI, a configured scheduling RNTI (configured scheduling RNTI, CS-RNTI).

Exemplarily, the first control information may be understood as DCI.

In this application, DCI may be replaced by PDCCH. PDCCH can be replaced by DCI.

For example, the first control information transmitted in a unicast manner may be: PDCCH/DCI scrambled by C-RNTI, or DCI transmitted on PDCCH scrambled by C-RNTI.

It can be understood that "the first communication device receives the first control information transmitted in a unicast manner" indicates that the first control information is directed to the first communication device, that is, the first control information is specifically sent to the of the first communication device.

The first control information transmitted in a multicast manner or the first control information transmitted in a multicast manner may include/understand any one or any of the following:

(1) The first control information is transmitted on a third resource, where the third resource is a resource associated with multicast.

It can be understood that the first resource is a resource associated with the multicast: the third resource is in the public frequency resource corresponding to the multicast.

For example, the third resource may be a PDCCH resource.

(2) The first control information is scrambled by the second RNTI.

For example, the first control information transmitted in a multicast manner may be: PDCCH/DCI scrambled by G-RNTI, or DCI transmitted on PDCCH scrambled by G-RNTI.

It can be understood that "the first communication device receives the first control information transmitted by multicast" means that the first control information is directed to multiple communication devices, that is, the first control information is sent to the multicast corresponding to multiple communication devices.

The fact that the first data is data transmitted in a multicast manner may include/replace/understand that the first data is transmitted in a multicast manner.

The first data is data transmitted in a multicast manner, which may include/understand any one or any of the following:

(1) The first data is transmitted on the second resource, where the second resource is a resource associated with multicast.

It can be understood that the second resource is a resource associated with the multicast: the second resource is in a common frequency resource corresponding to the multicast, or the second resource is an SPS resource corresponding to the multicast.

The SPS resource corresponding to the multicast may be understood as the public SPS resource (eg, PDSCH resource) corresponding to the multicast. It can be understood that, for the communication device that receives the multicast, data can be received on the SPS resource corresponding to the multicast.

Exemplarily, the first communication device may use a broadcast message (for example, system information, a Multicast Control Channel (MCCH) message), a Radio Resource Control (Radio Resource Control, RRC) message (for example, a dedicated RRC message) ), medium access control (Medium Access Control, MAC) message (for example, MAC control message (Control Element, CE)), physical layer message (for example, DCI), any one or more of pre-configuration to obtain SPS resources configuration or obtain the corresponding relationship between the configuration of SPS resources/SPS resources and multicast.

For example, after the communication device acquires the configuration of the SPS, it may need to be activated (eg, activated through a physical layer message/DCI) to receive data using the resource; it may also directly use the resource to receive data (ie, no activation is required).

The public frequency resource corresponding to the multicast can be understood as: the BWP corresponding to the multicast, or the frequency range corresponding to the multicast.

For example, the second resource may be a PDSCH resource.

(2) The first data is scrambled by the second RNTI.

The second RNTI can be used for any one or more of the following: for multicast, for scheduling dynamic resources, for retransmission resources of dynamic resources, for activating configuration resources, for reactivating configuration resources, for Deactivation of configuration resources, retransmission resources used for scheduling configuration resources, used for scrambling (eg, for scrambling PDCCH or PDSCH).

Exemplarily, the second RNTI may be a G-RNTI.

For example, the first data may be multicast data.

For example, the first data may be newly transmitted data and/or retransmitted data.

For example, transmitting the first data in a multicast manner may be: PDSCH scrambled by G-RNTI, or data transmitted on PDSCH scrambled by G-RNTI: or, data scrambled by G-RNTI.

It can be understood that "the first data is data transmitted in a multicast manner" means that the first data may not be directed only to the first communication device, that is, the first data may not be specifically sent to the first communication device. of communication devices. For example, multiple communication apparatuses may receive the first data transmitted in a multicast manner, wherein the multiple communication apparatuses may be communication apparatuses interested in the first data, or may belong to the same multicast as the first communication apparatus Group/multicast communication device.

It can be understood that, because the first communication apparatus receives the first data transmitted in the multicast manner, it can be seen that the first data sent by the second communication apparatus to the multiple communication apparatuses are the same. The first data received by the plurality of communication devices are the same.

The first data being multicast data may include/understand any one or any of the following:

(2) The first data is scrambled by the second RNTI.

For example, the first data may be data transmitted in a C+G transmission manner, or may be data transmitted in a G+G transmission manner.

(3) The first control information indicates that the first data is multicast data, or the first control information indicates that the transmission corresponding to the first control information is multicast (transmission).

For example, the first SCI indicates that the first data is multicast data, or the first SCI indicates that the transmission corresponding to the first SCI is multicast (transmission).

For example, when the first data is downlink data, the first data is multicast data or data transmitted in a multicast manner.

For example, when the first data is SL data, the first data is multicast data.

The first control information used to schedule the first data transmitted in a multicast manner may include/understand any one or more of the following:

(1) The first control information indicates that the first data is transmitted in a multicast manner.

The first control information indicating that the first data is transmitted in a multicast manner includes any one or more of the following: the format of the first control information/scramble information of the first control information/indication information in the first control information (for example, a certain field) indicates that the first data is transmitted in a multicast manner.

The first communication device receives the first control information, and determines the first data according to the format of the first control information/scrambled information of the first control information/indication information (for example, one or more fields) in the first control information transmitted by multicast.

(2) The first control information indicates that the first data is scrambled by the second RNTI.

The first control information indicating that the first data is scrambled by the second RNTI includes any one or more of the following: the format of the first control information/indication information (for example, one or more fields) in the first control information indicates that the first data is scrambled by the second RNTI. A data is scrambled by the second RNTI.

For example, the first control information indicates that the first data is scrambled by G-RNTI1.

(3) The first control information indicates that the first data is data corresponding to multicast (service) 1 .

The first control information indicates that the first data is multicast (service) 1. The data corresponding to 1 includes any one or more of the following: the format of the first control information/indication information in the first control information (for example, one or more field) indicates that the first data is data corresponding to multicast (service) 1.

It can be understood that the first communication apparatus acquires the correspondence between the multicast (service) 1 and the G-RNTI1, and knows that the G-RNTI1 is used to receive the first data.

(4) The first control information is used to schedule the first data.

The first control information indicates a resource location where the first data is located and/or information required for decoding the first data. For example, time domain resources and/or frequency domain resources, modulation and coding scheme (modulation and coding scheme, MCS), HARQ process ID (HARQ process ID), new data indicator (new data indicator, NDI), SL process ID, etc.

(5) The first control information indicates downlink transmission.

The downlink transmission can be understood as the first data, for example, the downlink transmission is PDSCH, and the first control information is PDCCH/DCI scrambled by G-RNTI.

It can be understood that multiple communication apparatuses may receive different PDCCH/DCI (for example, the PDCCH/DCI received by different communication apparatuses are scrambled by the C-RNTI corresponding to each communication apparatus), and the different PDCCH/DCI scheduling is the same. PDSCH/Data.

Exemplarily, the first communication apparatus receives the DCI/PDCCH scrambled with the C-RNTI, and the DCI/PDCCH schedules the PDSCH/data scrambled with the G-RNTI.

Exemplarily, the first communication apparatus receives the G-RNTI scrambled DCI/PDCCH, and the DCI/PDCCH schedules the G-RNTI scrambled PDSCH/data.

Exemplarily, the first communication apparatus receives the G-RNTI scrambled PDSCH/data.

Optionally, the first data is associated with any one or more of multicast, first multicast, first service, and second RNTI.

The first service may include any one or more of the following: a multicast service and a first multicast service.

Any one or more of the multicast, the first multicast, and the first service are associated with the second RNTI.

The DRX associated with the multicast may be understood/replaced with any one or more of the following: the DRX associated with the first multicast, the DRX associated with the first service, and the DRX associated with the second RNTI.

For example, the DRX associated with the multicast/the DRX associated with the first multicast may be the DRX associated with the first source ID+the first destination ID.

For example, the DRX associated with the multicast/the DRX associated with the first multicast may be the DRX associated with the first source ID+the first destination ID+communication type.

Wherein, the first source ID and the first destination ID are associated with the multicast or the first multicast.

Communication types include any one or more of unicast, multicast, and broadcast. For example, the communication type is multicast.

Optionally, the communication device that receives the data corresponding to the first data/second RNTI may include/replace/understand as any one or more of the following: multicast (or multicast service) corresponding to the first data/second RNTI The communication device in, the communication device in the group corresponding to the multicast (or multicast service) corresponding to the first data/second RNTI, receives the communication of the multicast (or multicast service) corresponding to the first data/second RNTI A device, a communication device interested in the multicast (or multicast service) corresponding to the first data/second RNTI, receives any one or more of the multicast, the first multicast, the first service, and the second RNTI A communication device for corresponding data, a communication device interested in data corresponding to any one or more of multicast, first multicast, first service, and second RNTI, and a communication device for multicast, first multicast, first A communication device interested in any one or more of a service and a second RNTI, belonging to/located in a group corresponding to any one or more of the multicast, the first multicast, the first service, and the second RNTI communication device.

S602. The first communication device starts or restarts the first timer or the second timer according to the first time; wherein the first timer (or the duration of the first timer) is used to instruct the first communication device to receive the retransmitted data duration; the second timer (or the duration of the second timer) is used to indicate the duration before the first communication apparatus receives the retransmitted data.

First, to facilitate understanding, some concepts in step S602 are described.

The length of time before instructing the first communication device to receive retransmitted data may include/understand as any one or more of the following: for instructing the first communication device to receive/receive retransmitted data (eg, DL data or SL data) The duration (eg, the minimum duration) before the data), which is used to indicate the duration (eg, the minimum duration) before the first communication device expects to receive/receive the retransmitted data (eg, DL data or SL data), which is used to indicate The duration (eg, the minimum duration) to wait before the first communication device receives/receives retransmitted data (eg, DL data or SL data), used to indicate that the first communication device expects to receive/receive retransmitted data (eg, , DL data or SL data) to wait (eg, minimum time).

For example, the first data is associated with the first HARQ process.

For example, the first timer is associated with the second HARQ process.

For example, the second timer is associated with the third HARQ process.

It can be understood that the first HARQ process and the second HARQ process can be understood as the same HARQ process or two associated HARQ processes.

It can be understood that the first HARQ process and the third HARQ process can be understood as the same HARQ process or two associated HARQ processes.

It can be understood that the second HARQ process and the third HARQ process can be understood as the same HARQ process or two associated HARQ processes.

The duration for instructing the first communication device to receive the retransmitted data may include/understand as: the duration (eg, the maximum duration for instructing the first communication device to receive/receive the retransmitted data (eg, DL data or SL data)) duration).

The first timer is a timer corresponding to the DRX associated with the multicast.

Exemplarily, the first timer may be understood as a retransmission timer, or a retransmission timer corresponding to the DRX associated with the multicast.

The second timer is a timer corresponding to the DRX associated with the multicast.

Exemplarily, the second timer may be understood as an RTT timer, or an RTT timer corresponding to the DRX associated with the multicast.

To sum up, the first communication device starts or restarts the first timer or the second timer according to the first time. It can be understood that the first time is an agreement of the communication device that receives the data corresponding to the first data/second RNTI time. After the first time is determined, the communication device (for example, some or all of the communication devices) that receives the data corresponding to the first data/second RNTI will start or restart the first timer or the second timer according to the first time. Therefore, , the start or restart times of the first timer or the second timer of different communication devices that receive the data corresponding to the first data/second RNTI are aligned. And because the duration of the first timer or the second timer is fixed, the end times of the first timer or the second timer of different communication devices that receive the data corresponding to the first data/second RNTI are also aligned. , so that the activation times of different communication devices that receive the data corresponding to the first data/second RNTI can be aligned. The method takes into account the possible multiplexing and path-association problems, so that the activation times of different communication devices that receive the data corresponding to the first data/second RNTI can be aligned. Further, it is avoided that the first communication device cannot receive the data (for example, retransmitted data or newly transmitted data) sent by the second communication device because the first communication device is in a sleep state, and the reliability of data reception is improved. At the same time, meaningless monitoring by the first communication device is avoided, which is beneficial to the energy saving of the first communication device. Reduced communication delay.

In step S602, in order to start or restart the first timer or the second timer according to the first time, the first communication device needs to determine the first time. The solution for determining the first time by the first communication device is introduced below by taking solutions one to four as examples.

Solution 1. The first time may include: the time domain position of the first feedback resource, or before the time domain position of the first feedback resource, or after the time domain position of the first feedback resource; or, the first time includes the time domain of the first feedback resource. The xth time domain resource after or before the domain position or before the xth time domain resource or after the xth time domain resource; or, the time domain position of the first transmission resource or before the time domain position of the first transmission resource or After the time domain position of the first transmission resource; or, the yth time domain resource after or before the time domain position of the first transmission resource or before the yth time domain resource or after the yth time domain resource.

For example, x is a positive integer greater than or equal to 1.

For example, y is a positive integer greater than or equal to 1.

Wherein, the first feedback resource is associated with the first data.

Optionally, the first feedback resource may be a resource for the first communication apparatus to send feedback for the first data to the second communication apparatus.

It can be understood that, the first feedback resource may be feedback resources corresponding to other communication apparatuses. Wherein the other communication device is not the first communication device. For example, the other communication may be a communication device that receives data corresponding to the first data/second RNTI.

In a possible implementation, the first communication device is a terminal device, the second communication device is a network device, and the first feedback resource may be a PUCCH resource, and this implementation may be applied to an MBS scenario.

In another possible implementation, the first communication device is a terminal device, the second communication device is a terminal device, and the first feedback resource may be a PSFCH resource, and this implementation may be applied to a V2X scenario.

The first transmission resources include resources for transmitting first control information or first data. In a possible implementation, the first communication device is a terminal device, the second communication device is a network device, and the first transmission resource may be a PDCCH resource or a PDSCH resource, and this implementation may be applied to an MBS scenario.

In another possible implementation, the first communication device is a terminal device, the second communication device is a terminal device, and the first transmission resource may be a physical sidelink shared channel (PSSCH) or a physical sidelink Control channel (Physical sidelink control channel, PSCCH) resource, this implementation can be applied to V2X scenarios.

In the first solution, the first communication device needs to obtain the time domain position of the first feedback resource to determine the first time, which will be described in detail below.

First of all, for the convenience of understanding, some concepts in the scheme 1 are explained.

In this application, "the time domain position of the first feedback resource" can be understood/replaced as: the first feedback resource.

Optionally, the time domain position of the first feedback resource may include/understand/replace with: a start position (for example, a start time/moment) or an end position (for example, an end time/moment) of the first feedback resource in the time domain or an intermediate location (eg, an intermediate time/moment). For example, the temporal location of the first feedback resource may include/understand/replace: the start time (eg, start time) or end time (eg, end time) or intermediate time (eg, middle time) of the first feedback resource. Exemplarily, as shown in FIG. 7a, the first feedback resource corresponds to a period of time in the time domain. Therefore, the time domain position of the first feedback resource may include any time point or any time period (for example, any smaller time period) in the time period corresponding to the first feedback resource. For example, the time domain position of the first feedback resource may refer to a start position or an end position.

Optionally, the time domain position of the first feedback resource may include/understand/replace with: any superframe, frame, subframe, time slot, subslot, symbol, or any other time domain unit where the first feedback resource is located. One or more items; or, the start position (eg, start time/moment), end position (eg, end time/moment), or middle position (eg, middle time/moment) of the first feedback resource in the time domain Any one or more of superframes, frames, subframes, time slots, subslots, symbols, and other time domain units, or, the start time (for example, start time) or end time ( For example, the end time) or any one or more of the superframe, frame, subframe, slot, subslot, symbol, other time domain unit at which the intermediate time (eg, the intermediate time) is located. It can be understood that the time domain position of the first feedback resource may include: superframe, frame, subframe, time slot, subslot, symbol, and time domain position of the first feedback resource with granularity of other time domain units.

For example, as shown in FIG. 8 , a frame includes 10 time slots (not fully shown in FIG. 8 ), and one time slot includes 14 symbols as an example for description. The first feedback resource is located in symbols 2 to 4 of time slot n of frame a, and the time domain location of the first feedback resource may include: frame a, or, time slot n, or, time slot n of frame a, or, symbol 2 , or, symbol 3, or, symbol 4, or, symbol 4 of slot n, or, symbol 4 of slot n of frame a, or, symbols 2 to 4, or, symbols 2 to 3, etc.

In this embodiment of the present application, the time domain position before the first feedback resource may be understood as the time domain position before the time domain position of the first feedback resource. The time domain position of the first feedback resource can be understood as the time domain position after the time domain position of the first feedback resource. For example, the time domain positions of the first feedback resource are symbols 2 to 4 of time slot n, the first feedback resource may include symbol 1 of time slot n or time slot n-1 before the first feedback resource, and the symbol 5 or time slot n-1 may be included after the first feedback resource. Slot n+1. This embodiment of the present application does not limit the time-domain unit granularity of the first time when the first time includes before or after the time-domain position of the first feedback resource.

In this application, "the time domain position of the first transmission resource" can be understood/replaced as: the first transmission resource.

Optionally, the time domain position of the first transmission resource may include/understand/replace with: a start position (for example, a start time/moment) or an end position (for example, an end time/moment) of the first transmission resource in the time domain or an intermediate location (eg, an intermediate time/moment). For example, the time domain location of the first transmission resource may include/understand/replace: the start time (eg, start time) or end time (eg, end time) or intermediate time (eg, middle time) of the first transmission resource. Exemplarily, as shown in FIG. 7b, the first transmission resource corresponds to a period of time in the time domain. Therefore, the time domain position of the first transmission resource may include any time point or any time period (for example, any smaller time period) in the time period corresponding to the first transmission resource. For example, the time domain position of the first transmission resource may refer to a start position or an end position.

Optionally, the time domain position of the first transmission resource may include/understand/replace with: any superframe, frame, subframe, time slot, subslot, symbol, or any other time domain unit where the first transmission resource is located. One or more items; or, the start position (for example, the start time/moment), the end position (for example, the end time/moment), or the middle position (for example, the middle time/moment) of the first transmission resource in the time domain Any one or more of superframes, frames, subframes, time slots, subslots, symbols, and other time domain units, or, the start time (eg, start time) or end time ( For example, the end time) or any one or more of the superframe, frame, subframe, slot, subslot, symbol, other time domain unit at which the intermediate time (eg, the intermediate time) is located. It can be understood that the time domain position of the first transmission resource may include: superframe, frame, subframe, time slot, subslot, symbol, and time domain position of the first transmission resource with granularity of other time domain units.

For example, as shown in FIG. 8 , a frame includes 10 time slots and one time slot includes 14 symbols as an example for description. The first transmission resource is located in symbols 2 to 4 of time slot n of frame a, and the time domain position of the first transmission resource may include: frame a, or, time slot n, or, time slot n of frame a, or, symbol 2 , or, symbol 3, or, symbol 4, or, symbol 4 of slot n, or, symbol 4 of slot n of frame a, or, symbols 2 to 4, or, symbols 2 to 3, etc.

In the embodiment of the present application, the time domain position before the first transmission resource may be understood as the time domain position before the time domain position of the first transmission resource. The time domain position of the first transmission resource can be understood as the time domain position after the time domain position of the first transmission resource. For example, the time domain position of the first transmission resource is symbols 2 to 4 of time slot n, the first transmission resource may include symbol 1 of time slot n or time slot n-1 before the first transmission resource, and the symbol 5 or time slot n-1 may be included after the first transmission resource. Slot n+1. This embodiment of the present application does not limit the time domain unit granularity of the first time when the first time includes before or after the time domain position of the first transmission resource.

In this application, "time domain resource" can be understood/replaced as: time domain unit.

The time-domain resources may be time-domain resources/time-domain units with granularity of superframe, frame, subframe, time slot, subslot, symbol, and others.

The time-domain unit may be a time-domain unit with granularity of superframe, frame, subframe, slot, subslot, symbol, and others.

Exemplarily, the first time may be the time domain position of the first feedback resource/the xth slot/symbol after the first feedback resource.

Exemplarily, the first time may be the time domain position of the first transmission resource/the yth slot/symbol after the first feedback resource.

Then, how the first communication apparatus determines the first time will be described.

Optionally, the first communication device may determine the first time according to the following steps:

(1) The first communication device acquires instruction information.

(2) The first communication device determines the first time according to the above-mentioned indication information.

The above indication information includes any one or more of the following: information on the first feedback resource set, information on the first identifier, information on the first feedback resource, and information on the first transmission resource.

Optionally, the first feedback resource set includes any one or more of the following: feedback resources corresponding to the first data, feedback resources corresponding to the communication device receiving the data corresponding to the first data/second RNTI, and feedback resources corresponding to the first communication device. feedback resources.

It can be understood that the communication device that receives the data corresponding to the first data/second RNTI may include one or more communication devices.

For example, the feedback resource corresponding to a communication device receiving data corresponding to the first data/second RNTI may be understood/replaced as: feedback resource corresponding to a certain communication device receiving data corresponding to the first data/second RNTI. For example, a certain communication device may be the first communication device, or may be another communication device.

In this embodiment of the present application, the indication information may be sent by the second communication apparatus/network device to the first communication apparatus, or may be determined by a protocol or pre-configured, which is not limited in this application.

For example, the indication information may be carried in the first control information, or the RRC message, or the configuration corresponding to the first service, which is not limited in this application.

It should be noted that, when the indication information includes multiple pieces of information, different information can be obtained in different ways, and the present application does not limit the information included in the indication information to be obtained in the same way.

It should be noted that the information included in the indication information sent by the second communication apparatus may be an explicit indication or an implicit indication. For example, for the information indicating that the indication information indicates the first feedback resource, the display indication may be the information indicating the first feedback resource directly, and the implicit indication may be the information indicating the first feedback resource set and the information of the first identifier. The first communication device The information of the first feedback resource is determined according to the information of the first feedback resource set and the information of the first identifier.

Optionally, when the first time includes the xth time domain resource after or before the time domain position of the first feedback resource, or before the xth time domain resource or after the xth time domain resource, the above indication information also Include: Information about x.

Optionally, when the first time includes the y-th time-domain resource after or before the time-domain position of the first transmission resource, or before the y-th time-domain resource or after the y-th time-domain resource, the above-mentioned indication information also Include: y information.

Optionally, the first identifier includes: an identifier of a communication device corresponding to the first feedback resource, or, an identifier of the first feedback resource, or, the number of communication devices that receive data corresponding to the first data/second RNTI, or, group size.

For example, the identification of the communication device corresponding to the first feedback resource may include/understand/replace: the identification/number of the communication device corresponding to the first feedback resource in the communication device that receives the data corresponding to the first data/second RNTI.

For example, the identifier of the first feedback resource may include/understand/replace with: the identifier/number of the first feedback resource in the first feedback resource set.

For example, "the first identifier includes: the identifier/number of the communication device corresponding to the first feedback resource in the communication device that receives the data corresponding to the first data/second RNTI" can be understood/replaced as: the first identifier includes: the first The identifier/number of the communication device corresponding to the feedback resource in the multicast (or multicast service) corresponding to the first data, or, the communication device corresponding to the first feedback resource is in the multicast (or multicast service) corresponding to the first data. The identifier/number of the communication device in the group corresponding to the multicast service), or, the communication device corresponding to the first feedback resource is in the communication device that receives the multicast (or multicast service) corresponding to the first data/second RNTI The identifier/number of the first feedback resource, or the identifier/number of the communication device corresponding to the first feedback resource in the multicast (or multicast service) corresponding to the first data/second RNTI, or, the communication device corresponding to the first feedback resource is in the The identifier/number of the group corresponding to the multicast (or multicast service) corresponding to the first data/second RNTI, or the identifier/number of the communication device corresponding to the first feedback resource in the group corresponding to the second RNTI.

For example, the number can be understood/replaced as: member ID (member ID), or, order, or, serial number.

For example, in this embodiment of the present application, the information of the first feedback resource or the information of the first transmission resource may directly indicate the time-frequency resource of the first feedback resource or the first transmission resource, or may indicate implicitly, which is not limited in this application. . For example, the information of the first transmission resource includes configuration parameters of the first transmission resource.

The first identifier includes the identifier of the communication apparatus corresponding to the first feedback resource. Exemplarily, for the communication apparatus that receives the data corresponding to the first data/second RNTI, different communication apparatuses may correspond to different identifiers, and different communication apparatuses may correspond to different identifiers. It may correspond to different feedback resources (eg, each communication device corresponds to one feedback resource). The first communication apparatus may determine, according to the first identifier, a feedback resource corresponding to the first identifier, where the feedback resource is the first feedback resource.

The first identifier includes an identifier of the first feedback resource. Exemplarily, for the first data, there are multiple feedback resources corresponding to the first data, and different feedback resources have different identifiers (for example, each identifier corresponds to a feedback resource) resource). The first communication apparatus may determine, according to the first identifier, a feedback resource corresponding to the first identifier, where the feedback resource is the first feedback resource.

It should be noted that, for the feedback resources corresponding to the first data, the present application does not limit whether different feedback resources or feedback resources of different communication devices that receive the data corresponding to the first data/second RNTI are frequency-divided or not. Frequency division, or code division, or both time division and code division, or various other possible distribution methods.

Therefore, optionally, the time domain positions of the feedback resources corresponding to the different communication devices that receive the data corresponding to the first data/the second RNTI are the same, or, the different communication devices that receive the data corresponding to the first data/the second RNTI correspond to The time domain locations of the feedback resources are different.

The first communication device may determine the first feedback resource according to the information of the first identification and the information of the set of the first feedback resource. It can be understood that the first communication device may determine the first feedback resource based on a certain rule and/or algorithm in combination with the information of the first identifier and the information of the set of the first feedback resource. The specific rules and/or algorithms are not limited by this application.

For example, if different feedback resources are frequency-divided, the first communication apparatus may determine the first feedback resource based on the frequency domain from high to low or from low to high in combination with the information of the first identifier.

For example, if different feedback resources are time-divided, the first communication apparatus may determine the first feedback resource based on the time domain from front to back or from back to front in combination with the information of the first identifier.

If different feedback resources are frequency-division, exemplarily, as shown in FIG. 9 , different feedback resources are frequency-division, and the feedback resource number in the first feedback resource set may be numbered from 1 according to the frequency domain position of the feedback resource , the first identifier may be 2, and the first communication apparatus may find the corresponding first feedback resource according to 2 in the indication information and the first feedback resource set.

If the different feedback resources are time-divisional, it can be understood that when the second communication apparatus decides to retransmit data will affect the first communication apparatus to start or restart the first timer or the position of the first timer. For example, there are two possibilities for the second communication device to decide to retransmit:

Possibility 1: After the second communication device determines all the feedback/reception states of the first data communication device, it decides to retransmit.

Possibility 2: The second communication device decides to perform retransmission after determining that the number of communication devices that fail to receive the first data reaches a certain ratio or number.

For example, the second communication device may determine whether to perform retransmission after determining all the feedback/reception states of the first data communication device, and/or determine whether to use the C+C transmission mode, C+G transmission mode, G Which one or more of the +G transmission methods to retransmit.

For example, the second communication device may determine whether to perform retransmission after determining that the number of communication devices that fail to receive the first data reaches a certain proportion or number, and/or determine whether to use the C+C transmission method. , which one or more of the C+G transmission mode and the G+G transmission mode to perform retransmission.

For these two possibilities, the second communication device needs to obtain the feedback of the first communication device and decide according to the time when the first communication device sends the feedback (for example, according to the time domain position of the feedback resource used by the first communication device to send the feedback) Retransmission. Therefore, the time at which the second communication apparatus decides to retransmit may be related to the time domain position of the feedback resource.

Therefore, in order to correspond to these two possibilities, when the time domain positions of the feedback resources corresponding to different communication devices that receive the data corresponding to the first data/second RNTI are different, in order to make the first time and the network device determine the retransmission time Matching, or in order to avoid the problem that the first communication device misses the data retransmitted by the second communication device due to the sleep state, or to avoid the problem of power consumption caused by meaningless monitoring by the first communication device, optional The embodiment of the present application also provides a possible implementation:

The first feedback resource includes feedback resources whose time domain position order is N/first identifier among the feedback resources associated with the first data, or the first feedback resource includes the last feedback in the time domain among the feedback resources associated with the first data resource.

For example, the N/first identifier may be the number of communication apparatuses that receive the data corresponding to the first data/second RNTI, the group size, and the number of communication apparatuses in the group.

The group size or the number of communication devices in the group may be any one or more of the following: the number of communication devices in the group corresponding to the multicast (or multicast service) corresponding to the first data, the number of communication devices in the group corresponding to the second RNTI The number of communication devices in the group corresponding to the first data/second RNTI, and the number of communication devices in the group corresponding to the multicast (or multicast service) corresponding to the first data/second RNTI.

Optionally, N/first identifier is less than or equal to the number of feedback resources associated with the first data.

Exemplarily, as shown in FIG. 10 , the first feedback resource is the last feedback resource in the time domain position among all the feedback resources associated with the first data.

The above describes how the first communication apparatus determines the first feedback resource according to the first identifier and the first feedback resource set, and another determination method is described below. Optionally, the first feedback resource may be associated with the first communication apparatus. In this manner, the first communication apparatus may use the feedback resource corresponding to itself as the first feedback resource.

Optionally, when the first feedback resource is associated with the first communication apparatus, the time domain positions of the feedback resources corresponding to different communication apparatuses that receive the data corresponding to the first data/second RNTI are the same. In this manner, since the time domain positions of the feedback resources are the same, when different communication devices use their corresponding feedback resources as the first feedback resources, the determined first time is the same.

Optionally, the present application further includes that the feedback resources corresponding to the communication apparatuses that receive the data corresponding to the first data/second RNTI are the same or different.

The fact that the feedback resources corresponding to the communication apparatuses that receive the data corresponding to the first data/the second RNTI are the same can be understood as: different communication apparatuses that receive the first data share the same feedback resource.

Different feedback resources corresponding to communication apparatuses receiving data corresponding to the first data/second RNTI can be understood as: different communication apparatuses receiving data corresponding to the first data/second RNTI have different feedback resources.

Scheme 2. The first time includes after or before the second time, and the duration from the second time is the time of the first time interval or before or after the time; or, the first time includes after or before the second time, and the distance The duration of the second time is the zth time domain resource after or before the time of the first time interval or before the zth time domain resource or after the zth time domain resource.

For the content related to the time domain resources, reference may be made to the introduction in the above solution 1, and details are not repeated here.

For example, the first time may be after or before the second time, and the duration from the second time is the zth slot/symbol after or before the time of the first time interval.

In this solution, the first communication device needs to determine the first time according to the second time and the first time interval. Optionally, the first communication device may determine the first time according to the following steps:

(1) The first communication device acquires instruction information.

(2) The first communication device determines the first time according to the indication information.

For example, the indication information includes any one or more of the following: information of the second time, information of the first time interval.

The granularity of the first time interval may include superframe, frame, subframe, slot, subslot, symbol, or other time domain unit granularity.

Optionally, if the first time includes after or before the second time, and the duration from the second time is the zth time domain resource after or before the time of the first time interval, or before or before the zth time domain resource. After the z time domain resources, the above indication information further includes: z information.

A possible implementation manner of this solution is that the second time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or after the time domain position of the first feedback resource, or the second time includes the first feedback resource. The xth time domain resource after or before the time domain position of a feedback resource or before the xth time domain resource or after the xth time domain resource; wherein the first feedback resource is associated with the first data.

For the content related to the time domain position of the first feedback resource, reference may be made to the content in the above solution 1, and details are not repeated here.

Optionally, in this implementation manner, the information of the second time may include one or more of the following: information of the first feedback resource set, information of the first identifier, information of the first feedback resource, and information of x. For the content related to the above information, reference may be made to the content of Scheme 1, and details are not repeated here.

The first communication device may determine the first feedback resource according to the information of the indicated second time, and how to confirm it can refer to the content in the above solution 1, which will not be repeated here.

For the content related to the first feedback resource, reference may be made to the content in the above solution 1, which will not be repeated here.

In another possible implementation manner of the solution, the second time includes the time domain position of the first transmission resource or before the time domain position of the first transmission resource or after the time domain position of the first transmission resource, or the first time includes The y-th time-domain resource after or before the time-domain position of the first transmission resource or before the y-th time-domain resource or after the y-th time-domain resource.

The first transmission resources include resources for transmitting first control information or first data.

For the content related to the time domain position of the first transmission resource, reference may be made to the content in the above solution 1, and details are not repeated here.

Specifically, the first data is multicast data or data transmitted in a multicast manner, and the first transmission resources for transmitting the first data are shared or the same for the communication apparatuses that receive the first data. Therefore, the second time determined by different terminal devices receiving the first data is the same. Therefore, different communication devices can determine the same first time according to the same second time and first time interval.

Solution 3: The first communication device acquires indication information, where the indication information includes information of the first time. The first communication device determines the first time according to the indication information.

In this solution, the indication information includes information of the first time, and the first communication apparatus may directly determine the first time according to the indication information. For example, the indication information includes any one or more of the following information: system frame number SFN, subframe (or subframe number), time slot, subslot, and symbol.

For example, determining the first time by the first communication device according to the indication information can be understood as: the first communication device determines the system frame number SFN, subframe (or subframe number), time slot, subslot where the first time is located according to the indication information , any one or more of the symbols.

Solution 4: The first time includes the Wth time domain resource before or after the time domain position of the first feedback resource, or before the Wth time domain resource or after the Wth time domain resource.

Wherein, the first feedback resource is associated with the first data.

For example, the first feedback resource is associated with the first communication device.

In this solution, the first communication apparatus may determine the first time according to the time domain position of the first feedback resource and the parameter W.

(1) The first communication device obtains the indication information;

The indication information includes information of the first feedback resource, and/or information of W.

For example, W is a positive integer greater than or equal to 1.

In a possible implementation manner, when the indication information displays the indication, it may directly indicate the time domain resource and W where the feedback resource corresponding to the first communication device is located, and when the indication information is implicitly indicated, if the first communication device is configured with MBS specific In the case of PUCCH-Config, it is equivalent to implicitly indicating that feedback resources configured by different communication apparatuses are within one time slot, and the first communication apparatus may determine the first time according to the time domain resources where the corresponding feedback resources are located.

Optionally, on the contrary, in the case where the first communication apparatus is configured with a unicast PUCCH-Config, it is equivalent to implicitly indicating that the feedback resources of different communication apparatuses are not necessarily within one time slot. At this time, the terminal device may, according to the instruction, choose not to determine the first time according to the fourth solution.

Optionally, the time domain positions of feedback resources corresponding to different communication devices that receive data corresponding to the first data/second RNTI are the same; or, feedback resources corresponding to different communication devices that receive data corresponding to the first data/second RNTI within the same time domain resource.

For example, feedback resources corresponding to different communication apparatuses that receive data corresponding to the first data/second RNTI are located in the same time slot.

It should be noted that "feedback resources corresponding to different communication devices that receive data corresponding to the first data/second RNTI are located in the same time domain resource" does not limit that the feedback resources corresponding to different communication devices are completely aligned in the time domain. For example, feedback resources for different communication devices may be on different symbols within a time slot.

In this case, because the feedback resources corresponding to different communication devices that receive the data corresponding to the first data/second RNTI are the same, or are located in the same time domain resource, therefore, the data corresponding to the first data/second RNTI are received differently. The time domain positions of the first feedback resources determined by the communication apparatus are the same. Furthermore, different communication apparatuses that receive data corresponding to the first data/second RNTI may determine the same first time according to the time domain position and parameter W of the first feedback resource. For example, the feedback resources of different communication devices that receive data corresponding to the first data/second RNTI are in the same time slot, the time slot is time slot 2, the indication information indicates that W is 1, and the first data/second RNTI is corresponding to receiving The different communication devices of the data can determine that the first time is time slot 3 .

Optionally, starting or restarting the first timer or the second timer according to the first time by the first communication device includes:

(1) The first communication device starts or restarts the first timer or the second timer at the first time; or,

(2) The first communication device starts or restarts the first timer or the second timer at the mth time domain resource after the first time.

For example, m is a positive integer greater than or equal to 1.

Based on this solution, the first communication device starts or restarts the first timer or the second timer at a time offset after the first time, considering that the second communication device performs retransmission after receiving the feedback from the first communication device The required processing time avoids meaningless monitoring by the first communication device.

Optionally, when the second timer times out, the first communication device starts or restarts the first timer.

Optionally, when the first communication device successfully receives the first data and/or the first communication device fails to receive the first data, the first communication device starts or restarts the first timer.

Optionally, when the second timer times out, and the first communication device successfully receives the first data and/or the first communication device fails to receive the first data, the first communication device starts or restarts the first timer.

As can be seen from the above description, in the existing unicast DRX mechanism, the first timer (retransmission timer) is not started until the RTT timer expires and the first communication device fails to receive data. Therefore, according to the unicast DRX mechanism, different communication devices in the multicast group may start or restart the first timer according to different data reception conditions, and some do not start or restart the first timer, which will lead to different communication devices. The activation times are not aligned. Based on the solution provided by the embodiment of the present application, if the second timer times out, the first communication device starts or restarts the first timer regardless of whether the first communication device succeeds in receiving the first data or fails. Therefore, based on this solution, after different communication devices start or restart the second timer according to the first time, regardless of how different communication devices receive data, the first timer is started or restarted, and the activation times of different communication devices can be aligned.

Wherein, the actions of the first communication device in the above steps S601 to S602 may be executed by the processor 401 in the communication device shown in FIG. 4 calling the application code stored in the memory 402 to instruct the terminal device to execute; The actions of the two communication apparatuses can be executed by the processor 401 in the communication apparatus shown in FIG. 4 calling the application code stored in the memory 402 to instruct the network device to execute. This embodiment does not impose any limitation on this.

The embodiment of the present application further provides another discontinuous reception control method. As shown in FIG. 11 , the discontinuous reception control method includes the following steps S1101-S1102:

S1101. The first communication device receives first control information from the second communication device, where the first control information is used to schedule first data, and the first data is multicast data or data transmitted in a multicast manner; or, the first communication The device receives first data from the second communication device, and the first data is multicast data or data transmitted in a multicast manner; or, the first communication device receives the first control information and the first data from the second communication device, The first control information is used to schedule first data, where the first data is multicast data or data transmitted in a multicast manner.

S1102. The first communication apparatus controls the duration of the first timer according to the first time; wherein, the first timer is used to indicate the duration of the first communication apparatus to receive the retransmitted data.

Steps S1101-S1102 will be described below in two scenarios.

For step S1101, reference may be made to the above description of step S601, which will not be repeated here.

For step S1102, the first communication device controls the duration of the first timer according to the first time; wherein the first timer is used to instruct the first communication device to receive the duration of the retransmission data of the first data. According to the above introduction to the DRX mechanism in unicast, it can be seen that the first timer is a retransmission timer, and the first communication device controls the duration of the first timer according to the first time. The terminal equipments of 1 share a set of DRX configuration, so the other communication devices in the multicast group will also control the duration of the first timer according to the first time. Therefore, the different communication devices that receive the data corresponding to the first data/second RNTI are The duration of the first timer is controlled according to the first time, thereby aligning the end times of the first timers of different communication devices, that is, aligning the end times of the retransmission activation period.

Step S1102 will be described in detail below. In order to control the duration of the first timer according to the first time, the first communication device needs to determine the first time. For the solution for determining the first time by the first communication apparatus, reference may be made to the above description of how the first communication apparatus determines the first time in step S602.

The first communication device controls the duration of the timer according to the first time, including:

The start or restart time of the first timer or the second timer is earlier than the first time, and the first communication device extends the duration of the first timer by the first duration;

Or, the start or restart time of the first timer or the second timer is later than the first time, and the first communication device reduces the duration of the first timer by the first duration;

The second timer is used to indicate a time period before the first communication apparatus receives the retransmitted data of the first data.

Specifically, the first time can be understood as a reference time point. If the start or restart time of the first timer or the second timer is earlier than the first time, the first communication device extends the duration of the first timer by the first duration . If the start or restart time of the first timer or the second timer is later than the first time, the first communication device reduces the duration of the first timer by the first duration. In other words, the first communication device can control the duration of the first timer according to the first time, that is, control the duration of the retransmission activation period. It can be understood that different communication devices that receive data corresponding to the first data/second RNTI is to control the duration of the first timer according to the first time.

The first duration is the duration between the start or restart time of the first timer or the second timer and the first time. Referring to Figure 12, the original duration of the first timer 1 and the first timer 2 is 8 units, the start or restart time of the first timer is 2 units earlier than the first time, and the original end time should be 2 units away from the first timer. The time is 6 units, the first communication device extends the duration of the first timer 1 by 2 units, and the end time of the first timer 1 after the extension is 8 units away from the first time. The start or restart time of the first timer 2 is 2 units later than the first time, and the original end time should be 10 units (2+8) away from the first time, and the first communication device reduces the duration of the first timer 2 by 2 After the reduction, the end time of the first timer 2 is 8 units away from the first time, so that the end times of the first timer 1 and the first timer 2 are aligned. Based on this solution, the first communication device controls the duration of the first timer according to the time difference between the first time and the start or restart time of the first timer or the second timer, so that the end time of the first timer is aligned.

To sum up, based on the discontinuous reception control method provided by the embodiment of the present application, the first communication device can control the duration of the first timer according to the first time. It can be understood that in the group where the first communication device belongs, all communication The device also controls the duration of the first timer according to the first time, so as to align the end time of the first timer by controlling the duration of the first timer, thereby aligning the activation end times of different communication devices.

Optionally, the discontinuous reception control method provided by the embodiment of the present application further includes:

(1) The first communication apparatus sends the first hybrid automatic repeat request HARQ feedback.

(2) The first communication apparatus starts or restarts the first timer or the second timer; wherein the first HARQ feedback is associated with the first data. The time when the first communication device starts or restarts the first timer or the second timer is after the first communication device sends the first HARQ feedback, that is, the start or restart of the first timer or the second timer in the embodiment of the present application The time can be determined according to the existing unicast DRX mechanism.

It can be understood that, in this embodiment of the present application, when the first timer is started or restarted, it is only meaningful that the first communication device controls the duration of the first timer according to the first time. Therefore, optionally, when the second timer times out, the first timer is started or restarted. For details, refer to the above description of step 602 .

Wherein, the actions of the first communication device in the above steps S1101 to S1102 may be executed by the processor 401 in the communication device shown in FIG. 4 calling the application code stored in the memory 402 to instruct the terminal device to execute; The actions of the two communication apparatuses can be executed by the processor 401 in the communication apparatus shown in FIG. 4 calling the application code stored in the memory 402 to instruct the network device to execute. This embodiment does not impose any limitation on this.

Optionally, the discontinuous reception control method provided by the embodiment of the present application further includes: after the first communication device sends the first HARQ feedback or sends the first HARQ feedback; the first communication device starts or restarts the first timer or the second timer. timer.

Wherein, the first HARQ feedback is associated with the first data.

In a possible implementation, the time when the first communication device starts or restarts the first timer or the second timer is after the first communication device sends the first HARQ feedback, that is, the first timer or the second timer in the embodiment of the present application. The start or restart time of the timer can be determined according to the existing unicast DRX mechanism.

It can be understood that, in this embodiment of the present application, when the first timer is started or restarted, it is only meaningful that the first communication device controls the duration of the first timer according to the first time.

Optionally, when the second timer times out, the first timer is started or restarted. For related content, reference may be made to the introduction in the embodiment shown in FIG. 6 .

Further, in order to solve the problem that when the first communication device does not transmit HARQ feedback, the first communication device cannot start the second timer and the first timer, so that the second communication device cannot receive the data sent by the second communication device during the operation of the original first timer. The embodiment of the present application also provides another discontinuous reception control method. As shown in FIG. 13 , the discontinuous reception control method includes the following steps S1301-S1303:

S1301. The first communication device receives first control information, where the first control information is used to schedule the first data; and/or the first communication device receives the first data.

S1302. The first communication apparatus determines not to transmit the first HARQ feedback of the HARQ request, and the first HARQ feedback is associated with the first data.

S1303. The first communication device starts or restarts the first timer or the second timer according to the first time.

Conflicts can be understood/replaced as: overlapping, or, colliding in the time domain, or, overlapping in the time domain.

For example, the conflict between the transmission of the first HARQ feedback and the first transmission may include/understand that a resource corresponding to the transmission of the first HARQ feedback collides with a resource corresponding to the first transmission.

For example, the conflict between the transmission of the first HARQ feedback and the first reception may include/understand that the resource corresponding to the transmission of the first HARQ feedback collides with the resource corresponding to the first reception.

The first timer (or the duration of the first timer) is used to instruct the first communication device to receive the retransmitted data; the second timer (or the duration of the second timer) is used to instruct the first communication device The amount of time before receiving retransmitted data. For S1301, in this embodiment of the present application, the transmission mode of the first control information or the first data is not limited.

Optionally, the transmission mode of the first control information may include/be the transmission mode of the first control information in FIG. 6 .

Optionally, the transmission mode of the first data may include/be the transmission mode of the first data in FIG. 6 .

Optionally, the first control information may include/be the first control information in FIG. 6 .

Optionally, the first data may include/be the first data in FIG. 6 .

For content related to any one or more of the first control information, the first data, the first timer, the second timer, and the first time, reference may be made to the content in the embodiment shown in FIG. 6 , which will not be repeated here.

For S1302, the first communication apparatus determines not to transmit the first HARQ feedback, which may also be referred to as the first HARQ feedback being dropped (drop).

For example, the first HARQ feedback is feedback on the first data.

Optionally, the first communication device determining not to transmit the first HARQ feedback may include: the first communication device determining that the transmission of the first HARQ feedback collides with the first transmission; or, the first communication device determining that the transmission of the first HARQ feedback is inconsistent with the first transmission. The first reception collides; or, the transmission of the first HARQ feedback collides with the first transmission; or, the transmission of the first HARQ feedback collides with the first reception.

In this embodiment of the present application, the transmission of the first HARQ feedback includes a resource for transmitting the first HARQ feedback, or the transmission of a resource for transmitting the first HARQ feedback. Exemplarily, the resource used for transmitting the first HARQ feedback may be a resource such as PUCCH or PSFCH.

For example, the first HARQ feedback may include the first UL HARQ feedback, and/or the first SL HARQ feedback.

For example, the resources used to transmit the first UL HARQ feedback may be PUCCH resources.

For example, the resources used to transmit the first SL HARQ feedback may be PSFCH resources.

Optionally, in this embodiment of the present application, the first transmission includes any one or more of the following: transmission of the second HARQ feedback, transmission of the first data, and transmission of the first sidelink.

The transmission of the second HARQ feedback is the resource used for transmitting the second HARQ feedback, or the transmission of the resource used for transmitting the second HARQ feedback. Exemplarily, the resources fed back by the second HARQ may be PUCCH resources, or resources such as PSFCH.

For example, the second HARQ feedback may include second UL HARQ feedback, and/or, second SL HARQ feedback.

For example, the resources used to transmit the second UL HARQ feedback may be PUCCH resources.

For example, the resources used to transmit the second SL HARQ feedback may be PSFCH resources.

For example, the first data transmission may include the first uplink data transmission, and/or the first SL data transmission.

For example, the resources used for transmitting the first uplink data transmission may be PUCCH resources, or PUSCH resources.

For example, the resources used to transmit the first SL data transmission may be PSFCH resources, or PSSCH resources, or PSCCH resources.

When the first communication apparatus determines that the transmission of the first HARQ feedback collides with the first transmission, optionally, the priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first transmission. For example, PUCCH1 is used to transmit the first HARQ feedback, and PUCCH2 is the first transmission. If the priority corresponding to PUCCH1 is lower than the priority corresponding to PUCCH2, the first communication device determines that PUCCH1 and PUCCH2 collide, and determines not to transmit the first HARQ feedback. Specifically, how to determine the priority corresponding to the transmission of the first HARQ feedback and the priority corresponding to the first transmission can be referred to in the prior art, which will not be repeated here.

Optionally, the first receiving includes any one or more of the following: receiving a third HARQ feedback. Exemplarily, the receiving of the third HARQ feedback may include the receiving of the third SL HARQ feedback.

For example, the resources used to receive the third HARQ feedback may be PSFCH resources.

For example, the resources used for transmitting the third HARQ feedback may be PSFCH resources.

When the first communication apparatus determines that the transmission of the first HARQ feedback collides with the first reception, optionally, the priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first reception. The details can be found in the above introduction, and will not be repeated here.

In the following, the case where the first communication apparatus determines not to transmit the first HARQ feedback will be exemplified in combination with different scenarios:

Scenario 1. Conflict between MBS HARQ feedback and unicast HARQ feedback/unicast PUSCH.

In this scenario, the transmission of the first HARQ feedback is MBS HARQ transmission, and the first transmission is unicast HARQ feedback or unicast PUSCH.

For example, specifically, the first data is transmitted in a multicast manner. And the first communication device also receives second control information transmitted in a unicast manner, and the second control information is used to schedule the second data transmitted in a unicast manner. And/or, the first communication device receives the second data transmitted in a unicast manner. For the unicast transmission, reference may be made to the above description of step S601.

The first communications apparatus determines that the transmission of the first HARQ feedback collides with the first transmission, which is associated with the second data. For example, the transmission used by the first communication device to send the first HARQ feedback is PUCCH1, the first transmission is the transmission of the second HARQ feedback, such as PUCCH2, or the first transmission is the first data transmission, such as PUSCH1, and PUCCH1 and PUCCH2 are in A collision occurs in the same time slot, and PUCCH1 with low priority is dropped. ,

Scenario 2: Conflict between ultra-reliable and low latency communications (ultra-reliable and low latency communications, URLLC) HARQ feedback and enhanced mobile broadband (eMBB) HARQ feedback/PUSCH.

In this scenario, the transmission of the first HARQ feedback is URLLC HARQ transmission, and the first transmission is eMBB HARQ feedback transmission or PUSCH transmission.

Specifically, in this embodiment of the present application, the first data includes URLLC data. The first communication device further receives second control information, the second control information is used to schedule the second data; and/or the first communication device receives the second data; the second data includes eMBB data.

The first communications apparatus determines that the transmission of the first HARQ feedback collides with the first transmission, which is associated with the second data. For example, the transmission used by the first communication apparatus to send the first HARQ feedback is PUCCH1, the first transmission is the second HARQ feedback transmission, such as PUCCH2 for sending eMBB HARQ feedback, or the first transmission is the first data transmission, such as PUCCH1, PUCCH1 and PUCCH2 collide in the same time slot, and PUCCH1 with low priority is dropped. ,

Scenario 3. In the V2X scenario, the conflict between SL transmission and UL transmission.

In this scenario, the transmission of the first HARQ feedback is SL transmission (eg, SL HARQ feedback), and the first transmission is UL transmission.

For example, specifically, in this embodiment of the present application, the first control information or the first data is received by the first communication device through the sidelink SL.

The first communications apparatus determines that the transmission of the first HARQ feedback collides with the first transmission, the first transmission being associated with the second data. For example, the transmission used by the first communication device to send the first HARQ feedback is PSFCH1, and the first transmission is the first data transmission, such as PUCCH1, PSFCH1 and PUCCH1 collide in the same time slot, and the low-priority PSFCH1 is dropped .

Scenario 4. In the V2X scenario, the conflict between the reception of SL HARQ feedback and the transmission of SL HARQ feedback.

In this scenario, the transmission of the first HARQ feedback is the transmission of the SL HARQ feedback, and the first reception is the reception of the SL HARQ feedback.

Specifically, in this embodiment of the present application, the first communication device may receive the first control information or the first data through the SL, and send the corresponding first HARQ feedback, and the first communication device may send the second control information or the second data through the SL. data, and receive third HARQ feedback corresponding to the second control information or the second data.

The first communication device determines that the transmission of the first HARQ feedback collides with the first reception, for example, the transmission of the first HARQ feedback such as PSFCH1 is sent, and the first reception is such as PSFCH2, the collision of PSFCH1 and PSFCH2 occurs in the same time slot, and the priority is low The PSFCH1 is dropped.

For step S1303, the first communication device starts or restarts the first timer or the second timer according to the first time. Based on this solution, after the first communication device determines not to transmit HARQ feedback, it starts or restarts the first timer or the second timer according to the first time, so that data can be received during the start or restart of the first timer. However, according to the existing unicast DRX mechanism, after the first communication apparatus determines not to transmit HARQ feedback, it cannot start or restart the first timer or the second timer because the feedback signal is not sent. Therefore, this solution solves the problem that in the existing unicast DRX mechanism, after the first communication device determines not to transmit HARQ feedback, it cannot receive data that may be sent subsequently.

In this embodiment of the present application, the first communication device needs to determine the first time. For details, refer to how the first communication apparatus determines the first time in the foregoing step S602. Based on this scheme, the activation times of different communication devices can also be aligned.

After the first time is determined, optionally, the first communication device starting or restarting the first timer or the second timer according to the first time includes:

The first communication device starts or restarts the first timer or the second timer at the first time.

Alternatively, the first communication device starts or restarts the first timer or the second timer after the first time or before the mth time domain resource or before the mth time domain resource or after the mth time domain resource. For details, reference may be made to the above description of step S602, which will not be repeated here.

Based on this solution, the first communication device starts or restarts the first timer or the second timer at a time offset after the first time, considering that the second communication device performs retransmission after receiving feedback from other communication devices. The required processing time avoids meaningless monitoring by the first communication device.

Optionally, the embodiment of the present application further includes: when the second timer times out, starting or restarting the first timer. For details, reference may be made to the above description of step S602, which will not be repeated here.

Optionally, the solutions of the above steps S1301 to S1303 can also be applied to the case of NACK only. For example, in the case of NACK only, the feedback resources of different communication devices receiving the same MBS are shared, and if the HARQ feedback of the communication device is dropped, the communication device starts or restarts the first timer based on the first time determined in step S1303 above. or a second timer.

Wherein, the actions of the first communication device in the above steps S1301 to S1303 may be executed by the processor 401 in the communication device shown in FIG. 4 calling the application code stored in the memory 402 to instruct the terminal device to execute; The actions of the two communication apparatuses can be executed by the processor 401 in the communication apparatus shown in FIG. 4 calling the application code stored in the memory 402 to instruct the network device to execute. This embodiment does not impose any limitation on this.

It can be understood that, in order to implement the above-mentioned functions, the first communication device or the second communication device includes corresponding hardware structures and/or software modules for executing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the first communication device or the second communication device may be divided into functional modules according to the foregoing method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated. in a processing module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

Exemplarily, FIG. 14 shows a schematic structural diagram of a communication apparatus 140 . The communication device 140 includes a processing module 1401 and a transceiver module 1402 . The transceiver module 1402 may also be referred to as a transceiver unit to implement a transceiver function, for example, a transceiver circuit, a transceiver, a transceiver or a communication interface.

Taking the communication device 140 as the first communication device in the above method embodiment as an example, in a possible implementation manner, the transceiver module 1402 is configured to receive first control information, the first control information is used to schedule the first data, and the first control information is used to schedule the first data. One piece of data is multicast data or data transmitted in a multicast manner; or, the transceiver module 1402 is used to receive first data, and the first data is multicast data or data transmitted in a multicast manner; or, the transceiver module 1402, is used to receive first control information and first data, and the first control information is used to schedule the first data, and the first data is multicast data or data transmitted in a multicast manner; the processing module 1401 is used for according to The first timer starts or restarts the first timer or the second timer at the first time; wherein, the first timer is used to instruct the transceiver module 1402 to receive the retransmitted data; the second timer is used to instruct the transceiver module 1402 to receive the retransmitted data before length of time.

Optionally, the first time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or after the time domain position of the first feedback resource; or, the first time includes the time domain position of the first feedback resource. The xth time domain resource after or before the position or before the xth time domain resource or after the xth time domain resource; alternatively, the first time includes the time domain position of the first transmission resource or the time domain of the first transmission resource Before the position or after the time domain position of the first transmission resource; or, the first time includes the yth time domain resource after or before the time domain position of the first transmission resource or before the yth time domain resource or the yth time After the domain resource; wherein, the first feedback resource is associated with the first data, and the first transmission resource includes a resource for transmitting the first control information or the first data.

Optionally, the first time includes after or before the second time, and the duration from the second time is the time of the first time interval or before or after the time; or, the first time includes after or before the second time, and The duration from the second time is the zth time domain resource after or before the time of the first time interval or before the zth time domain resource or after the zth time domain resource.

Optionally, the second time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or after the time domain position of the first feedback resource, or the second time includes the time domain position of the first feedback resource. The xth time domain resource after or before the location or before the xth time domain resource or after the xth time domain resource; wherein the first feedback resource is associated with the first data.

Optionally, the second time includes the time domain position of the first transmission resource or before the time domain position of the first transmission resource or after the time domain position of the first transmission resource, or the second time includes the time domain position of the first transmission resource. The yth time domain resource after or before the position or before the yth time domain resource or after the yth time domain resource; wherein the first transmission resource includes a resource for transmitting first control information or first data.

Optionally, the processing module 1401 is further configured to acquire indication information, where the indication information includes information of the first time; the processing module 1401 is further configured to determine the first time according to the indication information.

Optionally, the first time includes the wth time domain resource before or after the time domain position of the first feedback resource, or before the wth time domain resource or after the wth time domain resource; wherein the first feedback resource and The first data is associated.

Optionally, the processing module 1401 configured to start or restart the first timer or the second timer according to the first time includes: the processing module 1401 is configured to start or restart the first timer or the second timer at the first time; or , the processing module 1401 is configured to start or restart the first timer or the second timer after or before the mth time domain resource or before the mth time domain resource or after the mth time domain resource.

Optionally, when the second timer times out, the first timer is started or restarted.

Taking the communication device 140 as the first communication device in the above method embodiment as an example, in a possible implementation manner, the transceiver module 1402 is configured to receive the first control information, and the first control information is used to schedule the first data; and /or, the transceiver module 1402, for receiving the first data; the processing module 1401, for determining not to transmit the HARQ feedback of the first hybrid automatic repeat request, the first HARQ feedback is associated with the first data; the processing module 1401, for Start or restart the first timer or the second timer according to the first time; wherein the first timer is used to instruct the first communication device to receive the retransmitted data; the second timer is used to instruct the first communication device to receive the retransmission time before the data.

Optionally, the transmission of the first HARQ feedback collides with the first transmission; or, the transmission of the first HARQ feedback collides with the first reception.

Optionally, the priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first transmission; or, the priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first reception.

Optionally, the first transmission includes any one or more of the following: transmission of the second HARQ feedback, first data transmission, and first sidelink transmission.

Optionally, the first receiving includes any one or more of the following: receiving a third HARQ feedback.

In this embodiment, the communication apparatus 140 is presented in the form of dividing each functional module in an integrated manner. "Module" herein may refer to a specific ASIC, circuit, processor and memory executing one or more software or firmware programs, integrated logic circuit, and/or other device that may provide the functions described above.

In a simple embodiment, those skilled in the art can imagine that the communication device 140 may take the form of the communication device 400 shown in FIG. 4 .

For example, the

processor

401 or 407 in the communication apparatus 400 shown in FIG. 4 may invoke the computer execution instructions stored in the memory 403 to cause the communication apparatus 400 to execute the data analysis method in the above method embodiment. Specifically, the function/implementation process of the processing module 1401 in FIG. 14 can be implemented by the

processor

401 or 407 in the communication apparatus 400 shown in FIG. 4 calling the computer-executed instructions stored in the memory 403 .

Since the communication device 140 provided in this embodiment can perform the above-mentioned data transmission method, the technical effect that can be obtained can be referred to the above-mentioned method embodiments, and details are not repeated here.

It should be noted that, one or more of the above modules or units may be implemented by software, hardware or a combination of both. When any of the above modules or units are implemented in software, the software exists in the form of computer program instructions and is stored in the memory, and the processor can be used to execute the program instructions and implement the above method flow. The processor can be built into a SoC (system on chip) or an ASIC, or it can be an independent semiconductor chip. In addition to the core for executing software instructions for operation or processing, the internal processing of the processor may further include necessary hardware accelerators, such as field programmable gate array (FPGA), PLD (Programmable Logic Device) , or a logic circuit that implements dedicated logic operations.

When the above modules or units are implemented in hardware, the hardware can be CPU, microprocessor, digital signal processing (DSP) chip, microcontroller unit (MCU), artificial intelligence processor, ASIC, Any or any combination of SoCs, FPGAs, PLDs, dedicated digital circuits, hardware accelerators, or non-integrated discrete devices that may or may not run the necessary software to perform the above method flows.

Optionally, an embodiment of the present application further provides a chip system, including: at least one processor and an interface, the at least one processor is coupled to the memory through the interface, and when the at least one processor executes the computer program or instruction in the memory , the method in any of the above method embodiments is executed. In a possible implementation, the communication device further includes a memory. Optionally, the chip system may be composed of chips, or may include chips and other discrete devices, which are not specifically limited in this embodiment of the present application.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or data storage devices including one or more servers, data centers, etc. that can be integrated with the medium. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like.

Although the application is described herein in conjunction with the various embodiments, those skilled in the art will understand and understand from a review of the drawings, the disclosure, and the appended claims in practicing the claimed application. Other variations of the disclosed embodiments are implemented. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that these measures cannot be combined to advantage.

Although the application has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely illustrative of the application as defined by the appended claims, and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

2.3.3.1 The technical solution of the first embodiment of the invention solution

The problem to be solved in this embodiment is how the network can correctly determine the bandwidth of the fallback BC of the terminal, so that the network does not need to reconfigure the fallback, which not only ensures the minimum capability signaling overhead, but also ensures that the network configuration of the fallback BC not supported by the terminal can be avoided. If the bandwidth is too high, the terminal communication fails, or the network cannot configure a suitable bandwidth for the terminal, resulting in excessive power consumption of the terminal or affecting the peak rate of the network.

An overview of the main inventive points of this embodiment:

If the carrier bandwidth corresponding to the Nth bandwidth combination set of the first frequency band of the first fallback frequency band combination does not completely include the carrier bandwidth corresponding to the Nth bandwidth combination set of the first frequency band of the first frequency band combination, the terminal device Report the first fallback frequency band combination to the network device.

The terminal device determines the Mth bandwidth combination set of the first fallback frequency band combination, the terminal device reports the Mth bandwidth combination set to the network device, and the first frequency band of the first fallback frequency band combination is for the Mth bandwidth combination set. The carrier bandwidth corresponding to the M bandwidth combination set includes the carrier bandwidth corresponding to the Nth bandwidth combination set of the first frequency band of the first frequency band combination;

The terminal device sends first indication information to the network device, where the first indication information is used to indicate the carrier bandwidth determination method of the fallback frequency band combination of the first frequency band combination. The above determination method includes: determining according to the bandwidth combination set of the first frequency band combination, or determining according to the carrier bandwidth of the first frequency band combination.

The determining according to the bandwidth combination set of the first frequency band combination includes: the carrier bandwidth of the fallback frequency band combination is the carrier bandwidth corresponding to the Pth bandwidth combination set, and the Pth bandwidth combination set is supported by the first frequency band combination. Bandwidth Combination Set;

The determining according to the carrier bandwidth of the first frequency band combination includes: the carrier bandwidth of the fallback frequency band combination is a carrier bandwidth corresponding to a bandwidth combination set supported by the first frequency band combination.

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate a carrier bandwidth determination manner for determining the fallback frequency band combination of the first frequency band combination. The terminal device determines the carrier bandwidth of the fallback frequency band combination of the first frequency band combination according to the determination method indicated by the second indication information. The above determination method includes: determining according to the bandwidth combination set of the first frequency band combination, or determining according to the carrier bandwidth of the first frequency band combination.

In the present invention, the Nth bandwidth combination set, the Mth bandwidth combination set, and the Pth bandwidth combination set may refer to one or more bandwidth combination sets.

In a nutshell, the main inventive points of the present invention are:

1) For a given frequency band combination (Band Combination, BC), if for the same bandwidth combination set (Bandwidth Combination Set, BCS), its fallback BC (fallback BC) cannot support the carrier bandwidth in the given frequency band on the BCS. Fully contain (less than or partially contain) the carrier bandwidth supported by the above BC (hereinafter referred to as super BC) in this frequency band, the terminal determines the BCS of the fallback BC according to the carrier bandwidth supported by the super BC, and the fallback BC corresponds to the above BCS The carrier bandwidth is not less than (same or more than) the carrier bandwidth of the super BC, and the UE displays and reports the above fallback BC.

2) When the terminal does not display and report the fallback BC, the network determines the bandwidth supported by the fallback BC according to the BCS of the super BC; if the UE displays and reports the fallback BC, then the network determines the carrier bandwidth supported by the fallback BC according to the BCS of the reported fallback BC.

3) The UE sends indication information to the network, indicating the carrier bandwidth determination method of the fallback BC. The above determination methods include: 1. Determine the carrier bandwidth supported by the fallback BC under the BCS according to the BCS of the super BC, and the fallback BC supports the same BCS as the super BC; 2. According to the carrier bandwidth of the super BC (determined according to the BCS of the super BC) Bandwidth) determines the carrier bandwidth supported by fallback BC, fallback BC supports the same carrier bandwidth as super BC.

Enhanced Mobile Broadband (eMBB) is an important scenario for 5G applications, and typical applications of this scenario include 2k/4k video and VR/AR. These applications require ultra-high transmission data rates: up to 10Gbit/s peak uplink rate, and downlink peak rate up to 20Gbit/s. The peak rate is closely related to the bandwidth available to the user. In order to increase the peak rate and meet the requirements of the eMBB scenario, only the cell bandwidth can be increased. If the bandwidth of a single cell is fixed, it may be considered to aggregate the bandwidths of multiple cells for use, which is the carrier aggregation (Carrier Aggregation, CA) technology. After CA aggregates multiple Component Carriers (CCs), the peak rate can be increased almost proportionally.

In carrier aggregation, there is one carrier called the primary carrier (PCC), and the cell corresponding to the PCC is called the primary cell (PCell). Let the management of the carrier be performed, other carriers are called secondary carriers (Secondary Carrier, SCC), and the cell corresponding to the SCC is called secondary cell (Secondary cell, SCell).

In addition, under the Dual Connectivity (DC, Dual Connectivity) architecture, carrier aggregation is also supported. In the DC, the UE is connected to the cells of two base stations at the same time (the base station here refers to the logical base station), the primary base station is the MN (Master Node), the secondary base station is the SN (Secondary Node), and both MN and SN can do CA alone. . The cell where the MN forms the CA is called the Master Cell Group (MCG), and the cell where the SN forms the CA is called the Secondary Cell Group (SCG). PCC in SCG, called PSCell.

The CA capability of the network, that is, the specification of the CA, includes how many carriers can be aggregated at most, the maximum aggregated bandwidth, and which CCs can be aggregated together. It is clearly stipulated in the protocol, and the frequency band and bandwidth requirements need to be met, which is also related to the type of CA.

There are three types of CAs:

1) In-band continuous carrier aggregation: CCs belong to the same frequency band and are continuous in the frequency domain

2) In-band non-contiguous carrier aggregation: CCs belong to the same frequency band, but are discontinuous in the frequency domain

3) Carrier aggregation between frequency bands: CCs belong to different frequency bands (because they belong to different frequency bands, multiple CCs are basically discontinuous in the frequency domain)

The above three different types of CA have different requirements for the combination of frequency bands and bandwidths. Details can be found in the relevant chapters of 3GPP TS38.101.

The specification of CA describes the CA capability of the base station from the point of view of the base station. Since the implementation of CA is strongly related to the capability of the UE, the CA capability that a UE can actually obtain is determined by the CA capability of the UE itself and the base station it is connected to. . The CA capability of the UE mainly refers to the capability related to the band combination (BC) that the UE can support.

In the initial registration process, after the base station queries the UE wireless capabilities through UE CapabilityEnquiry signaling, the UE reports the UE wireless capabilities to the base station through UE CapabilityInformation signaling. , and reports a list of frequency band combinations supported by the UE (supportedBandCombinationList), which includes the BCs supported by the UE. For each BC, the UE reports the information about the frequency bands that make up the BC, including the number of the frequency band, the bandwidth class (bandwidthClass) of the frequency band, etc. The bandwidth class (A, B, C, D, E...) of the frequency band indicates the frequency band The maximum number of consecutive aggregated carriers, the range of aggregated channel bandwidth, and the fallback group, etc., see 3GPP TS 38.101-1.

For each BC, the BandwidthCombinationSet (BCS) supported by the BC will also be reported. BCS is an identifier (for the convenience of understanding, this identifier will be referred to as the BCS ID in the following text, or it can also be directly referred to as BCS). Different bandwidth combinations for this BC. Because the bandwidth combination supported by the protocol is evolving, this identifier is added for the convenience of identifying the UE capability. The BCS reported by the UE is 0, which means that the bandwidth combination corresponding to the BCS 0 in the BC is supported.

Taking CA_n78C as an example, CA_n78C represents a CA combination with bandwidth class C on NR band n78, which supports both downstream and upstream CA. Among them, for BCS 0, the 2 contiguous carriers in the n78 band can be aggregated between carriers of {50}MHz and {60,80,100}MHz bandwidths, or carriers of {60}MHz and {60,80,100}MHz bandwidths Aggregation between {80}MHz and {80,100}MHz bandwidth carriers, or {100}MHz and {100}MHz bandwidth carriers.

CA_n3A-n78A represents the inter-band CA combination between a single carrier with bandwidth class A on NR band n3 and a single carrier with bandwidth class A on NR band n78. In the CA configuration of the CA combination, BCS0 corresponds to the bandwidth supported by each frequency band under different subcarrier spacing (SCS). Under BCS 0, for band n3, the supported bandwidths are {5,10,15,20,25,30}MHz at 15kHz SCS and {10,15,20,25, 30}MHz; for band n78, the supported bandwidths are {10,15,20,40,50}MHz at 15kHz SCS and {10,15,20,40,50, 30kHz and 60kHz SCS 60,80,90,100}MHz.

In the UE capability, for each BC, the UE reports the BCS supported by the UE for the BC through a 32-bit bit string. The first/leftmost bit of the bit string represents BCS 0, the second bit represents BCS 1, and so on. By analogy, the rightmost/last digit represents BCS 31. Bit position 1 indicates that the UE supports the corresponding BCS, and bit position 0 indicates that the UE does not support the corresponding BCS.

However, with the development of communication, more and more CA combinations are specified in the protocol, and more and more BCs are reported in the UE capability. In order to save the signaling overhead of BC reporting, a fallback BC (fallback BC) mechanism is introduced. The fallback BC refers to the BC obtained from a BC due to the release of at least one SCell or the uplink configuration of the SCell, or the SCG, and the obtained BC is called a fallback BC. The original BC uses super BC in the present invention. to refer to. For a given BC, the UE shall support all its fallback BCs. When the fallback BC has the same capability, the UE does not need to display and report the fallback BC in the UE capability, thus greatly saving signaling overhead.

When the SCell or SCell uplink configuration or SCG is released, if the obtained fallback BC has the same capability as the BC (referred to as super BC hereinafter) before the release, the UE does not need to display the ability to report the fallback BC. The capability of the BC infers the capability of the fallback BC; however, if the obtained capability of the fallback BC changes, the UE needs to report the fallback BC with additional functions.

However, according to TS 38.101, under the same BCS, different BCs support different bandwidths in the same frequency band. For example, the super BC (CA_n3A-n78C) and its fallback BC (CA_n3A-n78A) under BCS 0 support different carrier bandwidths in the n78 band.

For BC n3A-n78C, the corresponding carrier bandwidth of BCS 0 for n78 is {50, 60, 80, 100} MHz (for 30kHz/60kHz SCS);

For BC n3A-n78A, the corresponding carrier bandwidth of BCS 0 for n78 is {10,15,20,40,50,60,80,90,100}MHz (for 30kHz/60kHz SCS)

When the capabilities of the fallback BC are the same as those of the super BC, the network does not need to reconfigure the UE. At this time, the bandwidth supported by the UE in the frequency band of the fallback BC should not be less than the bandwidth supported by the super BC in the frequency band.

However, as mentioned above, since the carrier bandwidths supported by super BC and fallback BC in the same frequency band under the same BCS may be the same or different or not exactly the same, the carrier bandwidth supported by fallback BC in a certain frequency band may or may not include, Or partially contain the carrier bandwidth supported by super BC on this frequency band. Then, when the fallback BC defines the same BCS as the super BC, combined with the BCS, there are two possible ways for the network and the terminal to determine the bandwidth of the fallback BC that is not reported:

1) The fallback BC supports the same BCS as the super BC, and the carrier bandwidth supported by the fallback BC under the BCS is determined according to the BCS;

2) The fallback BC supports the same carrier bandwidth as the super BC, and the carrier bandwidth supported by the fallback BC is determined according to the bandwidth supported by the super BC under the BCS of the super BC.

Therefore, there are the following possible situations for the fallback BC bandwidth determined by BCS:

Case 1: Under the same BCS, the carrier bandwidth supported by fallback BC on the same frequency band is the same as the carrier bandwidth supported by super BC;

The carrier bandwidth supported by the Fallback BC determined by the UE and the network is the same, regardless of whether the determination method 1 or the determination method 2 is adopted.

Case 2: Under the same BCS, the carrier bandwidth supported by the fallback BC on the same frequency band is more than the carrier bandwidth supported by the super BC;

Combined with the previous example. When BC n3A-n78A is the fallback BC of BC n3A-n78C, the carrier bandwidth supported by n78 in BC n3A-n78A includes and is more than the carrier bandwidth supported by n78 in BC n3A-n78C. Then, under the above two determination methods, the carrier bandwidth supported by the n78 frequency band in BC n3A-n78A is:

Based on Mode 1: {10,15,20,40,50,60,80,90,100}MHz

Based on Mode 2: {50,60,80,100}MHz

Therefore, if the carrier bandwidth supported by the fallback BC is inconsistently determined by the network and the UE, compatibility issues will arise. If the network adopts the determination method 1, but the UE adopts the determination method 2, it will cause the network to configure the bandwidth that the UE does not support, resulting in communication interruption; if the network adopts the determination method 2 and the UE adopts the determination method 1, the network does not know some Fallback BCs. The supported carrier bandwidth results in insufficient bandwidth configured by the network. If the network cannot configure certain bandwidth values, the peak rate of the network will be affected, or the network cannot configure certain smaller bandwidth values, resulting in excessive UE energy consumption.

Case 3: Under the same BCS, the carrier bandwidth supported by the fallback BC on the same frequency band is less than or partially includes the carrier bandwidth supported by the super BC;

If the network adopts the determination method 1, since the bandwidth of the fallback BC does not completely include the super BC, the network needs to reconfigure the UE according to the carrier bandwidth supported by the fallback BC, which will increase the service delay, reduce the service quality, and affect the user experience.

Therefore, the present invention proposes a method for determining the carrier bandwidth of the fallback BC, so that both the network and the UE can keep the determined bandwidth of the fallback BC consistent, avoiding the network reconfiguring the fallback BC, and the present invention can not only ensure the capability signaling overhead It can also ensure that the terminal communication fails due to the carrier bandwidth of the fallback BC that is not supported by the terminal configured by the network, or that the network cannot configure a suitable carrier bandwidth for the terminal, resulting in excessive power consumption of the terminal or affecting the peak rate of the network.

One method one:

For the terminal, if the fallback BC supports the same BCS as the super BC, the meaning of support here includes that the BCS is defined for the fallback BC and the fallback BC also supports the BCS, and, if for the same BCS, the fallback BC is on a given frequency band The supported carrier bandwidth is not less than the carrier bandwidth supported by the super BC in this frequency band. Then, the terminal determines the carrier bandwidth supported by the fallback BC according to the BCS. The above BCS is the BCS supported by the super BC; in other words, the terminal determines the BCS based on the super BC. The carrier bandwidth supported by fallback BC. The terminal may determine the carrier bandwidth supported on each frequency band when the fallback BC performs CA according to the carrier bandwidth supported by the fallback BC. When the other capabilities and feature sets supported by fallback BC are the same as those of super BC, the terminal does not need to display and report fallback BC.

If the fallback BC supports the same BCS as the super BC (the meaning of support here is that the BCS is defined for the fallback BC and the fallback BC also supports the BCS), and, if for the same BCS as the super BC, the fallback BC is on the BCS at If the carrier bandwidth supported by a given frequency band cannot completely contain (less than or partially contain) the carrier bandwidth supported by the super BC in this frequency band, the UE displays and reports the above fallback BC. The UE determines the reported BCS of the fallback BC according to the carrier bandwidth supported by the super BC (the bandwidth determined according to the BCS of the super BC). The carrier bandwidth of super BC.

For the network, if the terminal does not report the fallback BC, the network determines the bandwidth supported by the fallback BC according to the BCS. The above BCS is the BCS supported by the super BC; in other words, the network determines the fallback BC supported by the BCS according to the BCS of the super BC. bandwidth.

If the UE displays and reports the fallback BC, the network determines the carrier bandwidth supported by the fallback BC according to the BCS that displays the reported fallback BC.

The advantage of this method is that in most cases, for the same BCS, the bandwidth supported by the UE on the frequency band of the fallback BC is not less than the bandwidth supported by the super BC on the frequency band. Therefore, in this case, the UE does not need to display the report. For fallback BC, the network can search the carrier bandwidth of the fallback BC corresponding to the BCS according to the BCS of the super BC and the CA configuration table in TS 38.101. Under this method, signaling overhead can be saved. At the same time, if for the same BCS, the bandwidth supported by the UE in the frequency band of the fallback BC is more than the bandwidth supported by the super BC in the frequency band, the network can also learn that the UE is in addition to the bandwidth supported by the super BC in this frequency band. The additional bandwidth supported by the fallback BC can correctly understand the UE capabilities, make appropriate CA configurations, effectively increase the network peak rate in the corresponding scenario, or ensure the UE energy consumption.

At the same time, if the bandwidth corresponding to the fallback BC under the same BCS is less than or only partially includes the bandwidth corresponding to the super BC under the BCS, the UE can report the fallback BC through this method and determine the reported BCS of the fallback BC, so that the network can correctly understand The capability of the carrier bandwidth supported by the UE on the fallback BC to prevent the network from reconfiguring the UE.

One method two:

The UE sends indication information to the network, indicating the carrier bandwidth determination method of the fallback BC, or the capability of the carrier bandwidth supported by the UE on the fallback BC. The above determination methods include:

1) Determine the carrier bandwidth supported by the fallback BC under the BCS according to the BCS of the super BC. It can be understood that the carrier bandwidth supported by the fallback BC is determined according to the BCS, and the above-mentioned BCS is the same as the BCS of the super BC; or, the fallback BC supports the same BCS as the super BC.

2) Determine the carrier bandwidth supported by the fallback BC according to the carrier bandwidth of the super BC (the carrier bandwidth here is the bandwidth determined according to the BCS of the super BC). It can be understood that fallback BC supports the same carrier bandwidth as super BC.

Optionally, the above-mentioned indication information is a 1-bit indication.

Optionally, the above indication information is reported in the UE capability, and the network determines the carrier bandwidth determination method of the fallback BC according to the indication information.

Optionally, the above indication information is reported for each BC, and the network determines the carrier bandwidth determination method of the Fallback BC of the BC according to the indication information.

An implementation manner is that the UE uses 1 bit information to indicate the bandwidth determination method of the fallback BC of the BC. When the BC has multiple fallback BCs, the UE determines the method of indicating to the network which carrier bandwidth of the fallback BC to use. An optional determination method is that the UE traverses all the fallback BCs of the BC. For the same BCS, the carrier bandwidth supported by the fallback BC is less than the carrier bandwidth supported by the super BC. The number of fallback BCs is A, and under the same BCS, the number of fallback BCs is A. , the carrier bandwidth supported by fallback BC is more than the carrier bandwidth supported by super BC. The number of Fallback BCs is B. When A is less than (or equal to) B, the UE indicates to the network as determination method 1. When A is greater than (or equal to) At B, the UE indicates to the network that it is the determination mode 2.

Another optional determination method is that the UE traverses all the fallback BCs of the BC. In the fallback BC bandwidth determination method 1, the UE needs to display the reported number of fallback BCs, which is less than or equal to the fallback BC bandwidth determination method 2 , when the UE needs to display the reported number of fallback BCs, the UE indicates to the network that it is the determination method 1, otherwise, in the fallback BC bandwidth determination method 1, the UE needs to display the reported number of fallback BCs, which is greater than or equal to the bandwidth determination method in the fallback BC 2, when the UE needs to display the reported number of fallback BCs, the UE indicates to the network that it is the determination mode 2.

Under the above two methods of determining the fallback BC bandwidth, for the bandwidth of the fallback BC, the UE needs to display and report the fallback BC under the following conditions:

Under determination method 1, the fallback BC that needs to be displayed and reported includes the fallback BC when at least one of the following conditions is met:

1) If the fallback BC defines and supports the same BCS as the super BC, and the carrier bandwidth supported by the fallback BC on the BCS in a given frequency band cannot fully contain (less or partially contain) the carrier bandwidth supported by the super BC on this frequency band carrier bandwidth; or

2) The fallback BC does not support the same BCS as the super BC, that is, the fallback BC supports more or less BCS than the super BC; here, the fallback BC supports more BCS than the super BC's BCS, which refers to the UE capability support The BCS of the fallback BC is more than the BCS of the super BC; the BCS supported by the fallback BC is less than the BCS of the super BC, including both the UE capability supports less BCS of the fallback BC, and the BCS defined for the fallback BC is less than that of the super BC. In the case of BC's BCS, that is, fallback BC does not define the BCS of one or more super BCs.

In determination method 2, the fallback BC that needs to be displayed and reported includes the fallback BC when at least one of the following conditions is met:

1) Under the same BCS as super BC, the carrier bandwidth supported by fallback BC is more than the carrier bandwidth supported by super BC;

In the above-mentioned indication information is reported for each BC, and the network determines the carrier bandwidth determination method of the Fallback BC of the BC according to the indication information, another implementation method is that the UE uses 1 bitmap to indicate all possible fallback BCs of the BC. bandwidth determination method. The length of the Bitmap is the maximum number of possible fallback BCs.

The advantage of this method is that it combines the advantages of the two methods of determining the Fallback BC bandwidth and saves signaling overhead to the greatest extent. The UE can indicate to the network which bandwidth determination method to use according to the corresponding bandwidths of multiple Fallback BCs under the same BCS, that is, compared with super BCs under the same BCS, whether a given frequency band supports more or less bandwidth, Therefore, it is possible to flexibly indicate to the network how to understand the bandwidth of the fallback BC, to ensure that the number of fallback BCs that need to be additionally displayed and reported is the least, so the signaling overhead is smaller.

Method 3: For a given BC, the UE indicates to the network the BCS of each fallback BC of the BC. The network determines the bandwidth of the fallback BC according to the BCS of the fallback BC indicated by the UE.

The advantage of this method is that the BCS of each fallback BC can be clearly indicated to the network. If the other capabilities of the fallback BC and the super BC are the same, then the UE does not need to report the fallback BC. The network can report the fallback BC according to the super BC. The BCS determines that the fallback BC corresponds to the carrier bandwidth of the BCS.

2.3.3.2 Technical effect of the first embodiment of the invention scheme

Through this solution, it is ensured that the carrier bandwidth supported by the fallback BC determined by the terminal and the network in the dimension of the BC combined with the BCS is consistent, avoiding the network reconfiguration of the fallback BC; and ensuring that the network can correctly configure the carrier bandwidth of the fallback BC according to the capabilities of the UE , to avoid that the network configures the carrier bandwidth of the fallback BC that exceeds the UE's capability, or avoids the network being unable to know the carrier bandwidth of the fallback BC supported by the UE's capability, resulting in insufficient configured bandwidth and inability to configure a specific bandwidth value, resulting in the network peak rate being affected. loss, or excessive UE energy consumption.

2.3.3.3 Improvements in Embodiment 1 Different from the Prior Art

The improvement of this embodiment from the prior art is that,

If for the same BCS as super BC, the carrier bandwidth supported by fallback BC on the BCS in a given frequency band cannot completely contain (less or partially contain) the carrier bandwidth supported by super BC on this frequency band, the terminal reports fallback BC, And the terminal determines the reported BCS of the fallback BC according to the carrier bandwidth supported by the super BC, and the carrier bandwidth corresponding to the fallback BC under the above BCS is not less than (same or more than) the carrier bandwidth of the super BC.

The UE sends indication information to the network, indicating the carrier bandwidth determination method of the fallback BC. The above determination methods include: 1. Determine the carrier bandwidth supported by the fallback BC under the BCS according to the BCS of the super BC, and the fallback BC supports the same BCS as the super BC; 2. According to the carrier bandwidth of the super BC (determined according to the BCS of the super BC) Bandwidth) determines the carrier bandwidth supported by fallback BC, fallback BC supports the same carrier bandwidth as super BC.

Claims

A discontinuous reception control method, characterized in that the method comprises:

The first communication device receives first control information, where the first control information is used to schedule first data, and the first data is multicast data or data transmitted in a multicast manner; or,

The first communication device receives first data, where the first data is multicast data or data transmitted in a multicast manner; or,

The first communication device receives first control information and first data, the first control information is used to schedule the first data, and the first data is multicast data or data transmitted in a multicast manner;

The first communication device starts or restarts the first timer or the second timer according to the first time;

Wherein, the first timer is used to indicate the time period for the first communication apparatus to receive the retransmitted data; the second timer is used to indicate the time period before the first communication apparatus receives the retransmitted data.
The method according to claim 1, wherein the first control information is transmitted in a unicast manner, or the first control information is transmitted in a multicast manner.
The method according to claim 1 or 2, characterized in that,

The first time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or after the time domain position of the first feedback resource; or,

The first time includes the xth time domain resource after or before the time domain position of the first feedback resource or before the xth time domain resource or after the xth time domain resource; or,

The first time includes the time domain position of the first transmission resource or before the time domain position of the first transmission resource or after the time domain position of the first transmission resource; or,

The first time includes the yth time domain resource after or before the time domain position of the first transmission resource or before the yth time domain resource or after the yth time domain resource;

The first feedback resource is associated with the first data, and the first transmission resource includes a resource for transmitting the first control information or the first data.
The method according to claim 1 or 2, characterized in that,

The first time includes after or before the second time, and the duration from the second time is the time of the first time interval or before or after the time; or,

The first time includes the time after or before the second time, and the duration from the second time is the zth time domain resource after or before the time of the first time interval or the zth time before the zth time domain resource or the zth time. after domain resources.
The method of claim 4, wherein:

The second time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or after the time domain position of the first feedback resource, or,

The second time includes the xth time domain resource after or before the time domain position of the first feedback resource or before the xth time domain resource or after the xth time domain resource;

Wherein, the first feedback resource is associated with the first data.
The method of claim 4, wherein:

The second time includes the time domain position of the first transmission resource or before the time domain position of the first transmission resource or after the time domain position of the first transmission resource, or,

The second time includes the yth time domain resource after or before the time domain position of the first transmission resource or before the yth time domain resource or after the yth time domain resource;

Wherein, the first transmission resource includes a resource for transmitting the first control information or the first data.
The method according to claim 1 or 2, wherein the method further comprises:

The first communication apparatus acquires indication information, where the indication information includes information of the first time.

The first communication device determines the first time according to the indication information.
The method according to claim 1 or 2, characterized in that,

The first time includes the wth time domain resource before or after the time domain position of the first feedback resource, or before the wth time domain resource or after the wth time domain resource;

Wherein, the first feedback resource is associated with the first data.
The method according to any one of claims 1-8, wherein the first communication device starting or restarting the first timer or the second timer according to the first time comprises:

The first communication device starts or restarts the first timer or the second timer at the first time; or,

The first communication device starts or restarts the first timer or the second timer after the first time or before the mth time domain resource or before the mth time domain resource or after the mth time domain resource .
The method according to any one of claims 1-9, wherein,

The second timer expires, and the first timer is started or restarted.
A discontinuous reception control method, characterized in that the method comprises:

the first communication device receives first control information, where the first control information is used to schedule the first data; and/or the first communication device receives the first data;

the first communication apparatus determines not to transmit a first hybrid automatic repeat request HARQ feedback, the first HARQ feedback is associated with the first data;

The first communication device starts or restarts the first timer or the second timer according to the first time; wherein the first timer is used to indicate the duration of the first communication device to receive the retransmitted data; the first timer The second timer is used to indicate the time period before the first communication apparatus receives the retransmitted data.
The method of claim 11, wherein:

The transmission of the first HARQ feedback collides with the first transmission; or,

The transmission of the first HARQ feedback collides with the first reception.
The method of claim 12, wherein:

The priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first transmission;

Alternatively, the priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first reception.
The method according to claim 11 or 12, wherein,

The first transmission includes any one or more of the following: transmission of second HARQ feedback, first data transmission, and first sidelink transmission.
The method of claim 14, wherein:

The first reception includes any one or more of the following: reception of a third HARQ feedback.
A first communication device, characterized in that the first communication device comprises: a transceiver module and a processing module;

The transceiver module is used to receive first control information, the first control information is used to schedule first data, and the first data is multicast data or data transmitted in a multicast mode; or, the transceiver module is used to receive first data, where the first data is multicast data or data transmitted in a multicast manner; or, the transceiver module is configured to receive first control information and first data, and the first control information is used to schedule the first data data, the first data is multicast data or data transmitted in a multicast mode;

The processing module is used to start or restart the first timer or the second timer according to the first time; wherein, the first timer is used to indicate the duration of the transceiver module to receive the retransmitted data; the second timer is used to indicate the transceiver module. The amount of time before receiving retransmitted data.
The communication device according to claim 16, wherein,

The first control information is transmitted in a unicast manner, or the first control information is transmitted in a multicast manner.
The communication device according to claim 16 or 17, characterized in that,

The first time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or after the time domain position of the first feedback resource; or, the first time includes after or before the time domain position of the first feedback resource The xth time domain resource of or before the xth time domain resource or after the xth time domain resource; or, the first time includes the time domain position of the first transmission resource or the time domain position of the first transmission resource before or the first time After the time domain position of a transmission resource; or, the first time includes the yth time domain resource after or before the time domain position of the first transmission resource or before the yth time domain resource or after the yth time domain resource; The first feedback resource is associated with the first data, and the first transmission resource includes a resource for transmitting the first control information or the first data.
The communication device according to claim 16 or 17, characterized in that,

The first time includes after or before the second time, and the duration from the second time is the time of the first time interval or before or after the time; alternatively, the first time includes after or before the second time, and the distance from the second time The duration is the zth time domain resource after or before the time of the first time interval or before the zth time domain resource or after the zth time domain resource.
The communication device according to claim 16 or 17, characterized in that,

The second time includes the time domain position of the first feedback resource or before the time domain position of the first feedback resource or after the time domain position of the first feedback resource, or the second time includes after or before the time domain position of the first feedback resource The xth time domain resource of or before the xth time domain resource or after the xth time domain resource; wherein, the first feedback resource is associated with the first data.
The communication device according to claim 16 or 17, characterized in that,

The second time includes the time domain position of the first transmission resource or before the time domain position of the first transmission resource or after the time domain position of the first transmission resource, or the second time includes after or before the time domain position of the first transmission resource The yth time domain resource of or before the yth time domain resource or after the yth time domain resource; wherein, the first transmission resource includes a resource for transmitting first control information or first data.
The communication device according to claim 16 or 17, characterized in that,

The processing module is further configured to acquire indication information, where the indication information includes information of the first time; the processing module is further configured to determine the first time according to the indication information.
The communication device according to claim 16 or 17, characterized in that,

The first time includes the wth time domain resource before or after the time domain position of the first feedback resource, or before the wth time domain resource or after the wth time domain resource; wherein, the first feedback resource is related to the first data link.
The communication device according to any one of claims 16-23, characterized in that:

The processing module 1401 is configured to start or restart the first timer or the second timer according to the first time, including: the processing module 1401 is configured to start or restart the first timer or the second timer at the first time; or, the processing module 1401 It is used to start or restart the first timer or the second timer after or before the mth time domain resource or before the mth time domain resource or after the mth time domain resource.
The communication device according to any one of claims 16-24, wherein,

The second timer times out, and the first timer is started or restarted.
A first communication device, characterized in that the first communication device comprises: a transceiver module and a processing module;

The transceiver module is used to receive the first control information, and the first control information is used to schedule the first data; and/or the transceiver module is used to receive the first data; the processing module is used to determine not to transmit The first HARQ feedback is requested for HARQ feedback, and the first HARQ feedback is associated with the first data; the processing module is configured to start or restart the first timer or the second timer according to the first time; wherein, the first timing The timer is used to instruct the first communication device to receive the retransmitted data; the second timer is used to instruct the first communication device to receive the retransmitted data.
The communication apparatus according to claim 26, wherein the transmission of the first HARQ feedback collides with the first transmission; or, the transmission of the first HARQ feedback collides with the first reception.
The communication device of claim 26, wherein:

The priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first transmission; or, the priority corresponding to the transmission of the first HARQ feedback is lower than the priority corresponding to the first reception.
The communication device according to claim 26 or 27, characterized in that,

The first transmission includes any one or more of the following: transmission of second HARQ feedback, first data transmission, and first sidelink transmission.
The communication device according to claim 29, wherein,

The first reception includes any one or more of the following: reception of a third HARQ feedback.