CN117412358A

CN117412358A - Communication method and communication device

Info

Publication number: CN117412358A
Application number: CN202210800216.0A
Authority: CN
Inventors: 范强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2024-01-16
Also published as: WO2024007882A1

Abstract

The application provides a communication method and a communication device, in the method, a terminal device can receive first information for determining whether to start a first timer or not by the terminal device, and then the terminal device decides whether to start the first timer corresponding to a transmission resource after data transmission is performed on the transmission resource based on the first information, instead of having to start the first timer after the data transmission is completed on the transmission resource, so that the terminal device is beneficial to flexibly controlling the terminal device to start the first timer at a proper time and enter a discontinuous reception DRX activation state. In addition, when the terminal equipment determines not to start the first timer based on the first information, the terminal equipment can not enter the DRX activation state, so that the duration of the terminal equipment in the DRX activation state is shortened, and the power consumption of the terminal equipment is saved.

Description

Communication method and communication device

Technical Field

The embodiment of the application relates to the field of communication, in particular to a communication method and a communication device.

Background

In a wireless communication system, in order to ensure that data can be effectively transmitted and save power consumption of a terminal device, a discontinuous reception (discontinuous reception, DRX) mechanism is introduced to control the behavior of the terminal device to monitor a physical downlink control channel (physical downlink control channel, PDCCH). The terminal equipment configured with the DRX can enter a DRX activation state when the PDCCH or the retransmission scheduling is required to be monitored, and enter a DRX dormancy state when the PDCCH or the retransmission scheduling is not required to be monitored, so that the terminal equipment achieves the purpose of saving power consumption.

In the current DRX mechanism, after a terminal device performs a new transmission on a certain transmission resource, in order to prevent a data transmission failure, the terminal device starts a discontinuous reception retransmission timer (DRX-retransmission timer) to enter a DRX active state after a minimum retransmission scheduling interval configured on a network side, so that the terminal device can receive a retransmission schedule of the data in the DRX active state.

However, in practical applications, transmission failure is not generated every new transmission, so starting DRX-retransmission timer to enter DRX active state may cause unnecessary power consumption of the terminal device, and reduce energy saving effect of the terminal device. Thus, current DRX mechanisms require further investigation.

Disclosure of Invention

The application provides a communication method and a communication device, which are used for shortening the duration of a terminal device in a DRX (discontinuous reception) active state, and are beneficial to saving the power consumption of the terminal device.

In a first aspect, the present application provides a communication method that may be performed by a terminal device or by a component of the terminal device (e.g., a processor, a chip, or a system-on-chip component). Taking the terminal device as an example, in the method, the terminal device can receive first information, where the first information is used for the terminal device to determine whether to start a first timer, and the duration of the first timer is the minimum interval of retransmission scheduling or the maximum waiting duration of retransmission scheduling. The terminal device then determines whether to start the first timer based on the first information. When the terminal equipment determines not to start a first timer corresponding to the transmission resource based on the first information, the terminal equipment does not start the first timer corresponding to the transmission resource after data transmission is carried out on the transmission resource; when the terminal equipment determines to start a first timer corresponding to the transmission resource based on the first information, the terminal equipment starts the first timer corresponding to the transmission resource after data transmission is carried out on the transmission resource.

In the method, the terminal equipment can decide whether to start the first timer corresponding to the transmission resource after the data transmission is performed on the transmission resource based on the first information, but not necessarily start the first timer after the data transmission is completed on the transmission resource, so that the terminal equipment can be controlled to start the first timer at a proper time flexibly to enter the DRX activation state. In addition, when the terminal equipment determines not to start the first timer based on the first information, the terminal equipment can not enter the DRX activation state, so that the duration of the terminal equipment in the DRX activation state is shortened, and the power consumption of the terminal equipment is saved.

In a possible embodiment, the first information indicates a threshold value, which corresponds to a preset condition. When the terminal equipment determines not to start the first timer corresponding to the transmission resource based on the first information, the terminal equipment does not start the first timer corresponding to the transmission resource after performing data transmission on the transmission resource, and the method comprises the following steps: when at least one preset condition is met, the first timer is not started after data transmission on the transmission resource is determined.

Optionally, the preset condition satisfies that a duration interval between a starting position or an ending position of the transmission resource and a next time the terminal device enters the DRX active state is smaller than or equal to a threshold.

In this example, since the terminal device can perform retransmission scheduling when in the DRX active state, if the end position of the transmission resource is shorter than the duration interval when the terminal device next enters the DRX active state, even if the terminal device fails to transmit data transmitted on the current transmission resource, the terminal device has an opportunity to perform retransmission scheduling when next enters the DRX active state.

Optionally, the duration interval of the terminal device exiting the DRX active state in the current DRX cycle from the starting position or the ending position of the transmission resource is greater than or equal to a threshold.

In this example, since the terminal device is in the DRX active state when the terminal device performs data transmission on the transmission resource, and the end position of the transmission resource is longer than the duration interval when the terminal device exits the DRX active state, it is indicated that the terminal device will still have a longer time to be in the DRX active state. Therefore, even if the terminal device fails to transmit data transmitted on the current transmission resource, the terminal device has an opportunity to perform retransmission scheduling on the next transmission resource.

In a possible embodiment, the preset condition indicated by the threshold in the first information is a condition with reference to the DRX cycle.

In one possible example, the first information includes a first threshold, where a preset condition corresponding to the first threshold is: the duration interval of the end position of the transmission resource from the start time of the next DRX cycle is less than or equal to the first threshold. Optionally, the first threshold is smaller than a PDB of traffic transmitted by the transmission resource.

In this example, since the terminal device starts a discontinuous reception duration timer (DRX-onduration timer) within a short time after the start time of the DRX cycle (e.g., within one slot after the start time of the DRX cycle), the terminal device is in DRX active state and capable of retransmission scheduling during the DRX-onduration timer operation. Therefore, if the end position of the transmission resource is shorter (e.g., smaller than the first threshold) than the start time of the next DRX cycle, the terminal device has an opportunity to perform retransmission scheduling in the DRX activation time of the next DRX cycle even if the terminal device fails to transmit data transmitted on the current transmission resource. Further, if the first threshold is smaller than the PDB of the service transmitted by the transmission resource, it is ensured that the retransmission scheduling is performed on the data with the transmission failure, and meanwhile, the retransmitted data can be ensured to meet the PDB requirement without affecting the normal operation of the service.

In another possible example, the first information includes a second threshold, where a preset condition corresponding to the second threshold is: the duration interval of the end position of the transmission resource from the start time of the current DRX cycle is less than or equal to the second threshold. Optionally, the second threshold is smaller than a PDB of traffic transmitted by the transmission resource.

In this example, since the terminal device starts the DRX-onduration timer a short time after the start of the DRX cycle (e.g., one slot after the start of the DRX cycle), the terminal device is in the DRX active state and is capable of retransmission scheduling during the DRX-onduration timer operation. Thus, if the end position of the transmission resource is short (e.g., less than the second threshold) from the start time of the current DRX cycle, the terminal device may be in DRX-onduration timer running in the DRX cycle. At this time, even if the terminal device fails to transmit data transmitted on the current transmission resource, the terminal device has an opportunity to perform retransmission scheduling on the next transmission resource.

In another possible embodiment, the preset condition indicated by the threshold value in the first information is a condition with reference to the second timer. The second timer is a timer capable of enabling the terminal equipment to be in the DRX active state, namely, the terminal equipment is in the DRX active state when the second timer runs. For example, the second timer may be any one of a drx-onduration timer, a discontinuous reception activation timer (drx-incarvitytimer), an uplink discontinuous reception retransmission timer (drx-retransmission timer ul), a downlink discontinuous reception retransmission timer (drx-retransmission timer dl), and a side downlink discontinuous reception retransmission timer (drx-retransmission timer sl).

In one possible example, the first information includes a third threshold, where a preset condition corresponding to the third threshold is: the duration interval of the end position of the transmission resource from the start position of the second timer operated next by the terminal device is smaller than or equal to the third threshold value.

In this example, since the terminal device is in the DRX-active state during the operation of the second timer, and the terminal device is capable of performing retransmission scheduling when in the DRX-active state. Therefore, if the end position of the transmission resource is shorter (for example, smaller than the third threshold value) than the start position of the next running second timer, the terminal device has an opportunity to perform retransmission scheduling in the period of the next second timer running even if the terminal device fails to transmit data transmitted on the current transmission resource.

In another possible example, the first information includes a fourth threshold, where a preset condition corresponding to the fourth threshold is: the duration interval of the end position of the transmission resource from the end position of the second timer currently running by the terminal device is greater than or equal to a fourth threshold.

In this example, since the terminal device is in the DRX-active state during the operation of the second timer, and the terminal device is capable of performing retransmission scheduling when in the DRX-active state. Therefore, if the terminal device is currently in the running period of the second timer, and the duration interval between the end position of the transmission resource and the end position of the second timer that is currently running is longer (for example, the duration interval is greater than or equal to the fourth threshold value), it is indicated that the second timer of the terminal device will still run for a period of time, at this time, even if the data that is transmitted by the terminal device on the current transmission resource fails, the terminal device has an opportunity to perform retransmission scheduling on another transmission resource in the period in which the current second timer runs.

In another possible example, the first information includes a fifth threshold, where a preset condition corresponding to the fifth threshold is: the duration interval of the end position of the transmission resource from the start position of the second timer currently running by the terminal device is smaller than or equal to the fifth threshold.

In this example, since the terminal device is in the DRX-active state during the operation of the second timer, and the terminal device is capable of performing retransmission scheduling when in the DRX-active state. Thus, if the terminal device is currently in the running period of the second timer, and the duration interval of the end position of the transmission resource from the start position of the second timer that is currently running is short (for example, the duration interval is less than or equal to the fifth threshold value), it is indicated that the terminal device has just started running the second timer, and the second timer may continue to run for a duration. Therefore, even if the terminal device fails to transmit data transmitted on the current transmission resource, the terminal device has an opportunity to perform retransmission scheduling on another transmission resource within the period in which the current second timer is running.

It should be noted that in practical applications, when the second timer is implemented differently, the third threshold value may be different for the different second timer, the fourth threshold value may be different for the different second timer, and the fifth threshold value may be different for the different second timer.

In another possible embodiment, the preset condition indicated by the threshold in the first information is a condition related to DRX activation time (or DRX activation state). In the process that any one of the timers (for example, DRX-3535-retransmission timer dl and DRX-retransmission timer sl) runs, the terminal device is in a DRX active state, and the duration that the terminal device is in the DRX active state is called DRX active time.

In one possible example, the first information includes a sixth threshold, where a preset condition corresponding to the sixth threshold is: the duration interval of the end position of the transmission resource from the start time of the next DRX activation time is less than or equal to the sixth threshold.

In another possible example, the first information includes a seventh threshold, where a preset condition corresponding to the seventh threshold is: the end position of the transmission resource is at the DRX activation time and a duration interval from the end time of the current DRX activation time is greater than or equal to a seventh threshold.

In another possible example, the first information includes an eighth threshold, where a preset condition corresponding to the eighth threshold is: the end position of the transmission resource is at the DRX activation time and a duration interval from a start time of the current DRX activation time is less than or equal to an eighth threshold.

It should be noted that, the "end position of the transmission resource" in any one of the foregoing preset conditions may be replaced by the "start position of the transmission resource", and the value of the threshold corresponding to each preset condition may also be changed.

In one possible embodiment, the first information may include at least one character. Each character corresponds to at least one transmission resource and is used for indicating whether the terminal equipment starts a first timer corresponding to the transmission resource after data transmission is carried out on the transmission resource; or, each character corresponds to at least one hybrid automatic repeat request (hybrid automatic repeat request, HARQ) process, and is configured to instruct the terminal device whether to start a first timer corresponding to the HARQ process after data transmission on a transmission resource associated with the HARQ process.

Optionally, the first information includes a first sequence including at least one bit, each bit corresponding to at least one transmission resource, and each bit is used to indicate whether the corresponding at least one transmission resource starts the first timer after data transmission. In this example, the position of each bit in the bit sequence implicitly indicates which transmission resources each bit corresponds to, which is beneficial to controlling the size of the first information, so as to reduce signaling overhead carrying the first information.

Optionally, the first information includes a second sequence including at least one bit, each bit corresponding to at least one HARQ process associated with a transmission resource configuration, each bit being used to indicate whether the first timer is started after data transmission by the at least one HARQ process on the associated transmission resource. In this example, the position of each bit in the bit sequence implicitly indicates which HARQ processes each bit corresponds to, which is beneficial to controlling the size of the first information, so as to reduce signaling overhead carrying the first information.

In one possible implementation, the duration of the first timer is the minimum interval of retransmission scheduling, and the first timer is drx-HARQ-RTT-timerl or drx-HARQ-RTT-TimerDL.

Illustratively, in the uplink transmission, the transmission resource is a physical layer uplink shared channel (physical uplink shared channel, PUSCH) resource, and the first timer is drx-HARQ-RTT-timer ul.

When the first information indicates that the drx-HARQ-RTT-TimerUL is not started, the terminal equipment does not start the drx-HARQ-RTT-TimerUL after uplink data is sent on a PUSCH resource; or when the first information indicates to start the drx-HARQ-RTT-timer ul, the terminal device starts the drx-HARQ-RTT-timer ul after transmitting uplink data on the PUSCH resource.

Illustratively, in the downlink transmission, the transmission resource is a physical layer downlink shared channel (physical downlink shared channel, PDSCH) resource, and the first timer is drx-HARQ-RTT-TimerDL.

When the first information indicates that the drx-HARQ-RTT-TimerDL is not started, the terminal equipment does not start the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource; or when the first information indicates to start the drx-HARQ-RTT-TimerDL, the terminal device starts the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource.

In another possible implementation manner, the duration of the first timer is the maximum waiting duration of the retransmission schedule, and the first timer is drx-retransmission timer ul or drx-retransmission timer dl.

Illustratively, in the uplink transmission, the first timer is drx-retransmission timer ul.

When the first information indicates that the drx-retransmission timer UL is not started, the drx-retransmission timer UL is not started when the drx-HARQ-RTT-timer UL corresponding to the transmission resource is overtime; or when the first information indicates to start the drx-retransmission timer ul, starting the drx-retransmission timer ul when the drx-HARQ-RTT-timer ul corresponding to the transmission resource is timed out.

Illustratively, in the downlink transmission process, the first timer is drx-retransmission timer dl;

when the first information indicates that the drx-retransmission timer is not started, the drx-retransmission timer is not started when the drx-HARQ-RTT-timer is timed out; or when the first information indicates that the drx-retransmission timer dl is started, starting the drx-retransmission timer dl when the drx-HARQ-RTT-timer dl times out.

In one possible implementation manner, the first information is carried in a transmission resource configuration corresponding to the transmission resource; alternatively, the first information is carried in activation downlink control information (downlink control information, DCI) for activating the transmission resource.

In a second aspect, the present application provides a communication method that may be performed by an access network device or by a component of the access network device (e.g., a processor, chip, or system-on-chip component). Taking an access network device as an example, in the method, the access network device sends first information to a terminal device, where the first information is used to indicate whether to start a first timer corresponding to a transmission resource, and the duration of the first timer is the minimum interval of retransmission scheduling or the maximum waiting duration of receiving retransmission scheduling.

In the application, since the access network device can send the first information for determining whether to start the first timer corresponding to the transmission resource to the terminal device, the terminal device can decide whether to start the first timer corresponding to the transmission resource after data transmission on the transmission resource based on the first information, instead of having to start the first timer after data transmission on the transmission resource is completed. Therefore, the terminal equipment is flexibly controlled to start the first timer at a proper time to enter the DRX activation state. In addition, when the first information indicates that the first timer is not started, the terminal equipment can not enter the DRX activation state after receiving the first information, so that the duration of the terminal equipment in the DRX activation state is shortened, and the power consumption of the terminal equipment is saved.

In one possible implementation, when the first information indicates that the first timer corresponding to the transmission resource is not started; the first timer corresponding to the transmission resource is not started after data transmission on the transmission resource.

In one possible implementation, when the first information indicates to start the first timer corresponding to the transmission resource; the first timer corresponding to the transmission resource is started after data transmission on the transmission resource.

In a possible implementation manner, the first information indicates a threshold value, where the threshold value corresponds to a preset condition, and the first information is used to determine that the first timer is not started after data transmission on the transmission resource when at least one preset condition is met; the preset condition satisfies that a duration interval between a starting position or an ending position of the transmission resource and a next time the terminal device enters a Discontinuous Reception (DRX) active state is smaller than or equal to a threshold value, and/or the preset condition satisfies that a duration interval between the starting position or the ending position of the transmission resource and a terminal device in a current DRX period exits the DRX active state is larger than or equal to the threshold value.

In one possible embodiment, the preset condition satisfies at least one of the following:

the duration interval of the starting position/ending position of the transmission resource from the starting time of the next DRX cycle is smaller than or equal to a first threshold value; alternatively, the duration interval of the start position/end position of the transmission resource from the start time of the current DRX cycle is less than or equal to the second threshold.

the duration interval of the starting position/ending position of the transmission resource from the starting position of the second timer operated next by the terminal equipment is smaller than or equal to a third threshold value; or, the duration interval between the starting position/ending position of the transmission resource and the ending position of the second timer currently running by the terminal equipment is greater than or equal to a fourth threshold value; or the duration interval of the starting position/ending position of the transmission resource from the starting position of the second timer currently running by the terminal equipment is smaller than or equal to a fifth threshold value; wherein the terminal device is in a DRX active state when the second timer is running.

the duration interval of the starting position/ending position of the transmission resource from the starting moment of the next DRX activation time is less than or equal to a sixth threshold; or, the starting position/ending position of the transmission resource is at the DRX activation time and the duration interval from the ending time of the current DRX activation time is greater than or equal to a seventh threshold; alternatively, the starting position/ending position of the transmission resource is at the DRX activation time and a duration interval from the starting time of the current DRX activation time is less than or equal to the eighth threshold.

In one possible embodiment, the first information includes a first sequence including at least one bit, each bit corresponding to at least one transmission resource, each bit being used to indicate whether the corresponding at least one transmission resource starts the first timer after data transmission.

In one possible implementation, the first information includes a second sequence including at least one bit, each bit corresponding to at least one HARQ process associated with a transmission resource configuration, each bit being used to indicate whether the first timer is started after data transmission by the at least one HARQ process on the associated transmission resource.

In one possible implementation manner, the transmission resource is a physical layer uplink shared channel PUSCH resource, and the first timer is drx-HARQ-RTT-timer ul; the first information is used for enabling the terminal equipment not to start the drx-HARQ-RTT-TimerUL after uplink data is sent on the PUSCH resource; or, the first information is used for starting the drx-HARQ-RTT-timer ul after the terminal device sends uplink data on the PUSCH resource.

In one possible implementation, the transmission resource is a physical layer downlink shared channel PDSCH resource, and the first timer is drx-HARQ-RTT-TimerDL; the first information is used for the terminal equipment not to start the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource; or, the first information is used for the terminal equipment to start the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource.

In one possible implementation, the duration of the first timer is the maximum waiting duration of the received retransmission schedule, and the first timer is drx-retransmission timer ul or drx-retransmission timer dl.

In one possible implementation, the first timer is drx-retransmission timer ul; the first information is used for the terminal equipment not starting the drx-retransmission timer UL when the drx-HARQ-RTT-timer UL corresponding to the transmission resource is timed out; or the first information is used for starting the drx-retransmission timer UL when the drx-HARQ-RTT-timer UL corresponding to the transmission resource is timed out by the terminal equipment.

In one possible implementation, the first timer is drx-retransmission timer dl; the first information is used for enabling the terminal equipment not to start the drx-retransmission timertl when the drx-HARQ-RTT-timertl is timed out; or the first information is used for the terminal equipment to start the drx-retransmission TimerDL when the drx-HARQ-RTT-TimerDL times out.

In one possible implementation manner, the first information is carried in a transmission resource configuration corresponding to the transmission resource; or, the first information is carried in the downlink control information DCI for activating the transmission resource.

It should be noted that, the embodiments and the beneficial effects of the present aspect are similar to some of the embodiments in the first aspect, and specific reference may be made to the embodiments and the beneficial effects of the first aspect, which are not described herein.

In a third aspect, the present application provides a communication apparatus, which may be a terminal device, or may be a component of a terminal device (e.g., a component such as a processor, a chip, or a chip system). The communication device includes: a transceiver module and a processing module.

The transceiver module is used for receiving the first information. And the processing module is used for determining whether to start the first timer based on the first information. The processing module is further configured to, when determining that the first timer corresponding to the transmission resource is not started based on the first information, not start the first timer corresponding to the transmission resource after performing data transmission on the transmission resource; or when the first timer corresponding to the transmission resource is determined to be started based on the first information, starting the first timer corresponding to the transmission resource after data transmission is performed on the transmission resource. The time length of the first timer is the minimum interval of retransmission scheduling or the maximum waiting time length of receiving retransmission scheduling.

In a fourth aspect, the present application provides a communications apparatus that may be an access network device or may be a component (e.g., a processor, a chip, or a system-on-chip component) of an access network device. The communication device includes: a transceiver module and a processing module.

The processing module is used for generating first information, wherein the first information is used for determining whether to start a first timer corresponding to transmission resources by the terminal equipment, and the duration of the first timer is the minimum interval of retransmission scheduling or the maximum waiting duration of receiving retransmission scheduling; and the transceiver module is used for transmitting the first information.

It should be noted that, the embodiments and the advantages of the present aspect are similar to some of the embodiments in the second aspect, and specific reference may be made to the embodiments and the advantages of the second aspect, which are not described herein.

In a fifth aspect, an embodiment of the present application provides a communication device, which may be a terminal device in the foregoing embodiment or may be a chip in the terminal device. The communication device may include a processing module and a transceiver module. When the communication device is a terminal device, the processing module may be a processor, and the transceiver module may be a transceiver; the terminal device may further include a storage module, which may be a memory; the storage module is used for storing instructions, and the processing module executes the instructions stored by the storage module, so that the terminal equipment executes the method in the first aspect or any implementation manner of the first aspect; alternatively, the method of the first aspect or any implementation of the first aspect is performed. When the communication device is a chip in the terminal equipment, the processing module may be a processor, and the transceiver module may be an input/output interface, a pin, a circuit, or the like; the processing module executes the instructions stored by the storage module to cause the terminal device to perform the method of the first aspect or any implementation of the first aspect; alternatively, the method of the first aspect or any implementation of the first aspect is performed. The memory module may be a memory module (e.g., register, cache, etc.) within the chip, or may be a memory module (e.g., read-only memory, random access memory, etc.) within the terminal device that is external to the chip.

In a sixth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may be an access network device in the foregoing embodiment, or may be a chip in the access network device. The communication device may include a processing module and a transceiver module. When the communication device is an access network device, the processing module may be a processor, and the transceiver module may be a transceiver; the access network device may further comprise a storage module, which may be a memory; the storage module is configured to store instructions, and the processing module executes the instructions stored by the storage module, to cause the access network device to perform the second aspect or the method in any implementation manner of the second aspect. When the communication device is a chip in the access network device, the processing module may be a processor, and the transceiver module may be an input/output interface, a pin, a circuit, or the like; the processing module executes instructions stored by the storage module to cause the access network device to perform the second aspect or any implementation of the method of the second aspect. The memory module may be a memory module (e.g., register, cache, etc.) within the chip, or may be a memory module (e.g., read only memory, random access memory, etc.) within the access network device that is external to the chip.

In a seventh aspect, the present application provides a communication device, which may be an integrated circuit chip. The integrated circuit chip includes a processor. The processor is coupled to a memory for storing programs or instructions which, when executed by the processor, cause the communications apparatus to perform the method as described in any of the embodiments of the various aspects described above.

In an eighth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method as described in any one of the embodiments of the preceding aspects.

In a ninth aspect, embodiments of the present application provide a computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform a method as described in any one of the preceding aspects.

In a tenth aspect, an embodiment of the present application provides a communication system, where the communication system includes a terminal device performing any one of the foregoing first aspect and the first aspect, and an access network device performing any one of the foregoing second aspect and the second aspect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application.

Fig. 1A is an example diagram of a DRX cycle;

fig. 1B is an exemplary diagram of a timer involved in downlink transmission;

fig. 1C is another exemplary diagram of a timer involved in downlink transmission;

fig. 1D is an exemplary diagram of a timer involved in uplink transmission;

fig. 1E is an exemplary diagram of a DRX state of a terminal device in the conventional art;

FIG. 2 is a flow chart of a communication method of the present application;

FIG. 3A is a flow chart of a communication method of the present application;

FIG. 3B is another flow chart of a communication method of the present application;

fig. 4A is an exemplary diagram of a DRX state of a terminal device under the first information;

fig. 4B is another exemplary diagram of a DRX state of a terminal device under the first information;

fig. 4C is another exemplary diagram of a DRX state of a terminal device under the first information;

fig. 4D is another exemplary diagram of a DRX state of the terminal device under the first information;

FIG. 5A is a flow chart of a communication method of the present application;

FIG. 5B is another flow chart of a communication method of the present application;

FIG. 6A is an exemplary diagram of preset conditions in the present application;

FIG. 6B is another exemplary diagram of preset conditions in the present application;

FIG. 6C is another exemplary diagram of preset conditions in the present application;

FIG. 7 is a schematic diagram of one embodiment of a communication device of the present application;

FIG. 8 is a schematic diagram of another embodiment of a communication device of the present application;

fig. 9 is a schematic diagram of another embodiment of a communication device in the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims of this application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are capable of operation in other sequences than illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

For easy understanding, the system architecture and application scenario of the communication method proposed in the present application are described below:

the communication method proposed in the present application can be applied to a fifth generation mobile network (5th generation mobile networks,5G) New Radio (NR) system, a sixth generation mobile communication technology (the 6th generation mobile communication technology,6G) system, and a subsequent evolution system, which is not limited in this application. The communication system includes a terminal device and a network device. The network device may include an access network device or a core network device, among others.

Wherein the terminal device comprises a device for providing voice and/or data connectivity to the user. For example, a handheld device with wireless connectivity or a processing device connected to a wireless modem may be included. The terminal device may communicate with a core network (e.g., a 5G core network (5th generationcore,5GC)) via a radio access network (radio access network, RAN) with which voice and/or data may be exchanged. The Terminal device may also be referred to as a Terminal (Terminal), a User Equipment (UE), a wireless Terminal device, a Mobile Terminal (MT) device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a Mobile Station (MS), a mobile station (mobile), a remote station (remote station), an Access Point (AP), a remote Terminal device (remote Terminal), an access Terminal device (access Terminal), a user Terminal device (user Terminal), a user agent (user agent), or a user equipment (user device), etc. Further, the terminal device may be a mobile phone (mobile phone), a tablet (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, an augmented reality (XR) service terminal, a Cloud Gaming (CG) service terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (self-driving), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), or the like. It should be understood that all or part of the functionality of the terminal device in the present application may also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (e.g. a cloud platform). The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the terminal equipment. The terminal device in the present application may be any device or chip, which is not limited herein. The terminal device can be manufactured, sold or used as a stand-alone product, whether as a device or as a chip. In this and subsequent embodiments, a terminal device is taken as an example to describe the present embodiment.

An access network device, which may be any device having a radio transceiver function, may be used to take charge of air interface related functions, such as radio link maintenance functions, radio resource management functions, and partial mobility management functions. In addition, the access network device may be further configured with a baseband unit (BBU), and has a baseband signal processing function. The access network device may be, for example, an access network device (radio access network, RAN) currently serving the terminal device. Currently, some common examples of access network devices are: a Node B (Node B, NB), an evolved Node B (eNB), a next generation Node B (next generation Node B, gNB) in a 5G New Radio (NR) system, a Node (e.g., xNodeB) in a 6G system, a transmission reception point (transmission reception point, TRP), a radio network controller (radio network controller, RNC), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved Node (home evolved NodeB) or home Node B, HNB), and the like. Further, in a network structure such as a cloud access network (cloud radio access network, cloudRAN) or an open access network (open radio access network, ora), the access network device may be a device including a Centralized Unit (CU) (also referred to as a control unit) and/or a Distributed Unit (DU). The RAN equipment comprising the CU and the DU splits the protocol layers of the gNB in the NR system, the functions of part of the protocol layers are controlled in the CU in a centralized way, and the functions of the rest part or all of the protocol layers are distributed in the DU, so that the CU controls the DU in a centralized way. It should be understood that all or part of the functionality of the access network device in this application may also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (e.g. a cloud platform). The access network device in the embodiments of the present application may be any one of the foregoing devices or a chip in the foregoing device, which is not limited herein specifically. The access network device may be manufactured, sold, or used as a stand-alone product, whether as a device or as a chip. In this and subsequent embodiments, access network devices are described as an example.

The core network device refers to a device in a Core Network (CN) that provides service support for the terminal device. Currently, some common examples of core network devices are: access and mobility management function (access and mobility management function, AMF) entities, session management function (session management function, SMF) entities, user plane function (user plane function, UPF) entities, and the like, to name but a few. The AMF entity can be responsible for access management and mobility management of the terminal equipment; the SMF entity may be responsible for session management, such as session establishment for the user, etc.; the UPF entity may be a functional entity of the user plane, mainly responsible for connecting to external networks. It should be noted that, in this application, an entity may also be referred to as a network element or a functional entity. For example, the AMF entity may also be referred to as an AMF network element or an AMF functional entity; for another example, the SMF entity may also be referred to as an SMF network element or an SMF functional entity, etc.

It should be noted that the communication method proposed in the present application is applicable to communication between a terminal device and an access network device, and also to communication between a terminal device and a terminal device. For example, in a side-link communication scenario (i.e., a sidelink scenario), two communication terminal devices using a PC5 interface may execute the communication method proposed in the present application.

Specifically, the communication method proposed in the present application may be applied to a DRX mechanism (e.g., connected DRX (CDRX)). In the DRX mechanism, the terminal equipment only opens the receiver to enter the DRX active state at necessary time to monitor the PDCCH, and closes the receiver to enter the DRX dormant state at other time, thereby saving the energy consumption of the terminal equipment. In the DRX mechanism, the terminal device may involve several timers as follows:

discontinuous reception (drx-onduration timer): and a continuous downlink duration, which indicates a duration of a terminal device that maintains an awake state after waking up in a DRX cycle, and during a DRX-onduration timer operation period, the terminal device can monitor the PDCCH.

Discontinuous reception activation timer (drx-InactivityTimer): a continuous downlink duration indicates a duration that the terminal device can continuously monitor the PDCCH after successfully decoding a PDCCH indicating the primary uplink or downlink data at the DRX activation time (e.g., during the DRX-onduration timer operation). The drx-InactivityTimer is started or restarted when the terminal equipment receives the PDCCH indicating the new transmission (indicating uplink or downlink new transmission scheduling).

For ease of understanding, the foregoing DRX-onduration timer and DRX-Inactivitytimer are described in connection with the DRX cycle (DRX cycle) shown in FIG. 1A. As shown in fig. 1A, one DRX cycle mainly includes a duration (i.e., on-duration) and a sleep period (i.e., opportunity for DRX). The duration time is a duration time period in which the terminal equipment is in a DRX activation state and can monitor the PDCCH; the sleep period is a period in which the terminal device does not listen to the PDCCH in order to save power to enter the DRX sleep state. For example, when the terminal device starts DRX-onduration timer, the terminal device enters DRX active state to start listening to PDCCH. If the terminal equipment does not receive the PDCCH during the operation of the DRX-onduration timer, the terminal equipment can enter a DRX sleep state when the DRX-onduration timer times out and does not monitor the PDCCH any more; if the terminal equipment receives the PDCCH indicating the new transmission during the operation period of the drx-onduration timer, the terminal equipment starts or restarts the drx-Inactivitytimer so as to continuously monitor the PDCCH. It should be noted that if the terminal device receives a cell (e.g., DRX command MAC CE) indicating to enter sleep state during the DRX-onduration timer or DRX-incarvitytimer operation, the terminal device will immediately stop DRX-onduration timer and DRX-incarvitytimer and may enter DRX sleep state.

Discontinuous reception hybrid automatic repeat request round trip delay Timer (drx-HARQ-RTT-Timer): the minimum interval for indicating that the terminal device expects to receive retransmission scheduling can reflect the shortest duration of processing data or signaling from the terminal device by the network side, which indicates how many symbols (symbols) the next HARQ retransmission occurs at the earliest. The terminal device does not monitor the PDCCH during the drx-HARQ-RTT-Timer operation. The drx-HARQ-RTT-Timer may be divided into a Timer indicating a minimum interval at which an uplink terminal device desires to receive a retransmission schedule (i.e., an uplink discontinuous reception hybrid automatic repeat request round trip delay Timer (drx-HARQ-RTT-timertl)) and a Timer indicating a minimum interval at which a downlink terminal device desires to receive a retransmission schedule (i.e., a downlink discontinuous reception hybrid automatic repeat request round trip delay Timer (drx-HARQ-RTT-timertl)).

In general, drx-HARQ-RTT-TimerDL is started at the first symbol after the end of HARQ feedback for downlink transmission of one HARQ process, which means how long it takes for a terminal device to wait until the terminal device can monitor a PDCCH for indicating downlink retransmission scheduling after sending HARQ feedback to a network side. For example, in the example shown in fig. 1B, the terminal device receives downlink data through the PDSCH, and after receiving the downlink data on the PDSCH, the terminal device transmits HARQ feedback to the network side, and the terminal device starts drx-HARQ-RTT-TimerDL after transmitting the HARQ feedback. Optionally, in some scenarios, the drx-HARQ-RTT-TimerDL is started at the first symbol after downlink transmission of one HARQ process, which means how long it takes for the terminal device to wait until it is possible to monitor the PDCCH for indicating downlink retransmission scheduling after the terminal device receives downlink data from the network side. For example, in the example shown in fig. 1C, the terminal device starts drx-HARQ-RTT-TimerDL after receiving downlink data through PDSCH.

In addition, the drx-HARQ-RTT-timer ul is started at the first symbol after uplink transmission of one HARQ process, which means how long the terminal device needs to wait to monitor the PDCCH for indicating uplink retransmission scheduling after the terminal device sends uplink data to the network side. For example, in the example shown in fig. 1D, the terminal device transmits uplink data on PUSCH, and the terminal device starts drx-HARQ-RTT-TimerUL after transmitting the uplink data.

Discontinuous reception retransmission timer (drx-retransmission timer): the maximum waiting time for indicating to receive the retransmission schedule indicates the maximum time for which the terminal device is in the DRX active state waiting for the retransmission schedule. The drx-retransmission timer may be divided into a timer indicating a maximum waiting time period for receiving an uplink retransmission schedule (i.e., an uplink discontinuous reception retransmission timer (drx-retransmission timer ul)) and a timer indicating a maximum waiting time period for receiving a downlink retransmission schedule (i.e., a downlink discontinuous reception retransmission timer (drx-retransmission timer dl)). Alternatively, in side-uplink communication, the drx-retransmission timer may be a side-uplink discontinuous reception retransmission timer (drx-retransmission timer sl).

Generally, as shown in fig. 1B or fig. 1C, if the downlink Transport Block (TB) is not successfully decoded after the drx-HARQ-RTT-TimerDL timeout of one HARQ process, the terminal device starts at the first symbol after the drx-HARQ-RTT-TimerDL timeout. As shown in fig. 1D, drx-retransmission timer ul starts at the first symbol after drx-HARQ-RTT-timer ul timeout for one HARQ process.

As shown in fig. 1D, the terminal device is in a DRX active state during the running of any one of the timers DRX-onDurationTimer, DRX-InactivityTimer, DRX-RetransmissionTimerDL, DRX-retransmission timer ul, and can monitor the PDCCH.

It should be understood that the DRX active state referred to in the description of the aforementioned several timers refers only to the state of the DRX function, not to the radio resource control (radio resource control, RRC) active state. The RRC active state is the RRC connected state (RRC CONNECTED state). When the terminal equipment is in an RRC connection state, the special RRC signaling for configuring the terminal equipment by the network side can be received, and the special RRC signaling and the transmission of service data can be carried out between the terminal equipment and the network side. The RRC states corresponding to the RRC active state include an RRC dormant state (RRC IDLE state) (also referred to as RRC IDLE state) and an RRC inactive state (RRC INACTIVE state). In general, in the RRC dormant state and the RRC inactive state, the terminal device cannot receive the dedicated configuration signaling of the network. And the DRX function is an energy-saving function configured for the terminal equipment by the network side when the terminal equipment is in an RRC connection state. The terminal device may be in a DRX active state or a DRX dormant state when the terminal device is configured with a DRX function. When the terminal equipment is in a DRX activation state, the terminal equipment can monitor the PDCCH at a PDCCH monitoring time so as to determine whether the access network equipment sends scheduling information to the terminal equipment; when the terminal equipment is in the DRX dormant state, the terminal equipment can not monitor the PDCCH, so that the aim of saving energy is fulfilled. During the operation of each DRX timer, the terminal device is in RRC connected state.

As shown in fig. 1E, in the current DRX mechanism, after each time the terminal device performs transmission on an uplink transmission resource configured on the network side, the terminal device starts a DRX-HARQ-RTT-timer ul, and after the DRX-HARQ-RTT-timer ul is timed out, the terminal device starts a DRX-retransmission timer ul and is in a DRX active state, so as to expect to monitor a PDCCH indicated by the access network device for retransmission scheduling. However, in practical applications, not every transmission will fail, and thus, starting DRX-retransmission timer ul in the DRX active state may bring unnecessary power consumption to the terminal device, and affect the energy saving effect of the terminal device.

In this regard, the present application provides a communication method and a communication device, which are used to shorten the duration that the terminal device is in the DRX active state, which is beneficial to saving the power consumption of the terminal device.

The main flow of one embodiment of the communication method proposed in the present application will be described below with reference to fig. 2. The present embodiment may be performed by a terminal device or may be performed by a component of the terminal device (e.g., a processor, a chip, or a system-on-chip component). Taking a terminal device as an example, in the method, the terminal device will execute the following steps:

In step 201, the terminal device receives first information.

The first information is used to indicate whether the terminal device starts the first timer after data transmission on the transmission resource, which can also be understood that the first information is used for the terminal device to determine whether the terminal device starts the first timer after data transmission on the transmission resource.

The transmission resource is a physical resource configured to the terminal equipment by the network side and used for the terminal equipment to transmit data. For example, the access network device configures transmission resources configured to the terminal device through the transmission resources. The first information in the present application relates to transmission resources of a transmission resource configuration.

The transmission resources may be divided into pre-configured resources (pre-configured resources) and Dynamic Grant (DG) resources according to a network side configuration manner. The preconfigured resources are divided into Configuration Grant (CG) resources for uplink transmission and semi-persistent scheduling (semi-persistent scheduling, SPS) resources for downlink transmission according to transmission directions. Alternatively, CG resources may be configuration grant type 1 (configured grant type, CG type 1) resources, or configuration grant type 2 (configured grant type, CG type 2) resources.

In addition, transmission resources are divided into uplink transmission resources (e.g., uplink physical shared channel (physical uplink shared channel, PUSCH) resources) and downlink transmission resources (e.g., downlink physical shared channel (physical downlink shared channel, PDSCH) resources) according to the data transmission direction. For example, if the transmission resource configured by the network side is a PUSCH resource, the terminal device may send uplink data on the PUSCH resource. For example, if the transmission resource configured by the network side is a PDSCH resource, the terminal device may receive downlink data on the PDSCH resource.

In addition, under different application scenarios, the first information may adopt different configuration granularities, i.e. the range in which the first information takes effect may be different.

In one possible implementation, the transmission resource is a pre-configured resource. Such as CG resources or SPS resources. In this case, the first information may be information of granularity of the terminal device, information of granularity of the cell, or information of granularity of the BWP.

The first information is, for example, information of granularity of the terminal device. For example, the first information is carried in a MAC entity configuration cell MAC-CellGroupConfig cell. At this time, the first information is valid for each preconfigured resource.

Illustratively, the first information is information of cell granularity. For example, the first information is carried in a serving cell configuration cell ServingCellConfig. At this time, the configuration of different service cells may carry independent first information, and the first information carried in a certain service cell is only valid for the preconfigured resource in the same cell.

Illustratively, the first information is information of a partial bandwidth part (BWP) granularity. For example, the first information is carried in BWP configuration cells BWP-UpLinkD or BWP-Downlinkedd. At this time, the first information independent of each other may be carried in different BWP configurations, and the first information carried in a certain BWP is only valid for the preconfigured resource in the BWP.

Illustratively, the first information is information of a pre-configured resource allocation granularity. The first information may be carried in CG resource configuration or SPS resource configuration. For example, the first information is carried in the configuration cell configuredGrantConfig of the CG. For another example, the first information is carried in the configuration cell SPS-Config of the SPS. In addition, the first information may be carried in active downlink control information (downlink control information, DCI) corresponding to CG resource configuration or active DCI corresponding to SPS resource configuration. For example, the first information is carried in an activation DCI for activating a configuration grant type 2 resource. For another example, the first information is carried in an activation DCI for activating SPS resources.

In another possible implementation, the transmission resource is a dynamically granted DG resource. In this case, the first information may be information of granularity of the terminal device, information of granularity of the cell, or information of granularity of the BWP.

Illustratively, the first information is BWP granularity information. For example, the first information is carried in BWP configuration cells BWP-UpLinkD or BWP-Downlinkedd. At this time, the first information independent of each other may be carried in different BWP configurations, and the first information carried in a certain BWP is only valid for the preconfigured resource in the BWP.

It should be noted that, in practical application, the access network device may use the first information with any of the foregoing configuration granularity, and accordingly, the terminal device may obtain the first information from the cells or signaling corresponding to the configuration granularity, which is not limited in this application.

In addition, the first timer is used for indicating a minimum interval of the terminal equipment expecting to receive the retransmission schedule or indicating a maximum waiting time for receiving the retransmission schedule.

In a possible implementation manner, the first timer is used for indicating the minimum interval in which the terminal device expects to receive the retransmission schedule, that is, the duration of the first timer is the minimum interval in which the terminal device expects to receive the retransmission schedule. The first timer is, for example, drx-HARQ-RTT-timerl or drx-HARQ-RTT-TimerDL. For the description of drx-HARQ-RTT-timer ul or drx-HARQ-RTT-timer dl, refer to the corresponding descriptions in fig. 1B, fig. 1C, or fig. 1D, and are not repeated here.

In another possible implementation manner, the first timer is used for indicating a maximum waiting duration for receiving the retransmission schedule, that is, the duration of the first timer is the maximum waiting duration for enabling the terminal device to receive the retransmission schedule. Illustratively, the first timer is drx-retransmission timer UL or drx-retransmission timer DL. For the description of the drx-retransmission timer ul or drx-retransmission timer dl, refer to the corresponding descriptions in fig. 1B, 1C or 1D, and are not repeated here.

Specifically, the first information may have the following various embodiments:

In a possible embodiment, the first information is used to indicate at least one preset condition, and the first information includes a threshold value corresponding to each preset condition in the at least one preset condition.

For example, the preset condition is used to indicate that the duration interval between the starting position or the ending position of the transmission resource and the next time the terminal device enters the DRX active state is smaller than or equal to a first preset value. In this example, the first information at least includes the aforementioned first preset value. Optionally, the first preset value is smaller than a packet data packet delay budget (packet delay budget, PDB) of traffic transmitted by the transmission resource.

Wherein, the starting position of the transmission resource refers to the starting time of the transmission resource in the time domain, for example, the starting time of the first symbol or the first time slot of the transmission resource, etc.; the end position of a transmission resource refers to the end time of the transmission resource in the time domain, for example, the end time of the last symbol or the last slot of the transmission resource, etc.

In this example, since the terminal device can perform retransmission scheduling when in the DRX active state, if the end position of the transmission resource is shorter than the duration interval of the terminal device entering the DRX active state next time (for example, the duration interval is shorter than or equal to the first preset value), even if the data transmitted by the terminal device on the current transmission resource fails to be transmitted, the terminal device has an opportunity to perform retransmission scheduling when entering the DRX active state next time. Further, if the first preset value is smaller than the PDB of the service transmitted by the transmission resource, it is ensured that retransmission scheduling is performed on the data with transmission failure, and meanwhile, the retransmitted data can be ensured to meet the PDB requirement without affecting normal operation of the service.

For example, the preset condition is used to indicate that the duration interval of the start position or the end position of the transmission resource from the terminal device to exit the DRX active state in the current DRX cycle is greater than or equal to a second preset value. In this example, the first information at least includes the aforementioned second preset value.

In this example, since the terminal device is in the DRX active state when the terminal device performs data transmission on the transmission resource, and the end position of the transmission resource is longer than the duration interval during which the terminal device exits the DRX active state (for example, the duration interval is greater than or equal to the second preset value), it is indicated that the terminal device will still have a longer time to stay in the DRX active state. Therefore, even if the terminal device fails to transmit data transmitted on the current transmission resource, the terminal device has an opportunity to perform retransmission scheduling on the next transmission resource.

For example, the preset condition is used to indicate that the duration interval between the starting position or the ending position of the transmission resource and the terminal device entering the DRX active state in the current DRX cycle is smaller than or equal to a third preset value. In this example, the first information at least includes the aforementioned third preset value.

In this example, since the terminal device is in the DRX active state when the terminal device performs data transmission on the transmission resource, and the end position of the transmission resource is shorter than the duration interval of the terminal device that has just entered the DRX active state (for example, the duration interval is less than or equal to the third preset value), it is indicated that the terminal device has just entered the DRX active state and the terminal device will also have a duration in the DRX active state. Therefore, even if the terminal device fails to transmit data transmitted on the current transmission resource, the terminal device has an opportunity to perform retransmission scheduling on the next transmission resource.

For specific examples of the preset conditions, please refer to the corresponding embodiment of fig. 5A or fig. 5B, and the description thereof is omitted here.

In another possible embodiment, the first information is indicative of whether each of the at least one transmission resource starts the first timer after the data transmission.

Alternatively, the first information may include at least one character. Each character corresponds to at least one transmission resource and is used for indicating whether the terminal equipment starts a first timer corresponding to the transmission resource after data transmission is carried out on the transmission resource; or, each character corresponds to at least one HARQ process, and is configured to instruct the terminal device whether to start a first timer corresponding to the HARQ process after data transmission on a transmission resource associated with the HARQ process.

The first information may be a bit sequence, and one character in the first information is information carried by one bit in the bit sequence. The information carried by each bit in the bit sequence corresponds to at least one transmission resource, or the information carried by each bit in the bit sequence corresponds to at least one HARQ process. For example, the first information includes a first sequence including at least one bit, each of the bits corresponding to at least one transmission resource, each of the bits indicating whether the corresponding at least one transmission resource starts the first timer after data transmission. For another example, the first information includes a second sequence including at least one bit, each bit corresponding to at least one HARQ associated with a transmission resource configuration, each bit being used to indicate whether the first timer is started after data transmission on the associated transmission resource. In this example, the position of each bit in the bit sequence implicitly indicates which transmission resources or which HARQ processes each bit corresponds to, which is beneficial to controlling the size of the first information, so as to reduce signaling overhead carrying the first information.

The first information may also be, for example, a list comprising at least one character. Optionally, the list further includes an index of a character, where the index of the character is used by the terminal device to determine which transmission resources or which HARQ processes the character corresponds to. In this example, the first timer used for indicating the first information is carried in a list form, which is beneficial to accurately indicating which transmission resources or which HARQ processes of the terminal equipment are required to be started or not started.

Optionally, a time interval between every two adjacent first resources in the time domain is smaller than or equal to a packet delay budget PDB of a service transmitted by the transmission resource. The first resource is a transmission resource indicating that the first timer needs to be started after data transmission is performed. In this embodiment, even if the terminal device fails to transmit on a certain transmission resource, the terminal device may perform retransmission scheduling during other timers or periods when the event triggers the terminal device to enter the DRX active state. Not only can the transmission failure data be guaranteed to have the opportunity to carry out retransmission scheduling, but also the PDB requirement can be met.

Furthermore, it should be noted that each character may be any one of two values, where one value represents that the first timer is started and the other value represents that the first timer is not started. For example, if the value of the character is 0, it means that the first timer is not started, and if the value of the character is 1, it means that the first timer is started. For another example, if the value of the character is false, the first timer is not started, and if the value of the character is true, the first timer is started.

For a specific example of the first information for indicating the effect, refer to the corresponding embodiment of fig. 3A or fig. 3B, which will not be described herein.

In practical applications, the first information may be implemented by any one of the foregoing embodiments, which is not limited herein.

In step 202, the terminal device determines whether to start a first timer corresponding to the transmission resource based on the first information.

Specifically, when the implementation manner adopted by the first information is different, the process of determining whether to start the first timer based on the first information by the terminal device is also different. The following description will be made respectively:

in a possible embodiment, the first information is used to indicate at least one preset condition, and the first information includes a threshold value corresponding to each preset condition in the at least one preset condition. The terminal equipment judges whether the moment of the current terminal equipment after data transmission can meet the preset conditions or not based on one or a plurality of preset conditions indicated by the first information, and further the terminal equipment determines whether to start the first timer based on whether the preset conditions are met or not.

For example, when at least one preset condition is met, the terminal device determines that the first timer is not started after data transmission on the transmission resource. For example, the first information includes a first preset value, and the preset condition is used to indicate that a starting position or an ending position of the transmission resource is less than or equal to the first preset value from a duration interval of a next time the terminal device enters the DRX active state. In this case, after the terminal device performs data transmission on the transmission resource, the terminal device determines whether the duration interval between the start position or the end position of the data transmission and the next time the terminal device enters the DRX active state is less than or equal to a first preset value, if yes, the terminal device does not start the first timer; otherwise, the terminal device starts a first timer. For another example, the first information includes a second preset value, and the preset condition is used to indicate that a duration interval of the start position or the end position of the transmission resource from the terminal device to exit the DRX active state in the current DRX cycle is greater than or equal to the second preset value. In this case, after the terminal device performs data transmission on the transmission resource, the terminal device determines whether a duration interval of the terminal device exiting from the DRX active state in the current DRX cycle is greater than or equal to a second preset value, if yes, the terminal device does not start the first timer; otherwise, the terminal device starts a first timer. For another example, the first information includes a third preset value, and the preset condition is used to indicate that a duration interval of the starting position or the ending position of the transmission resource from the terminal device entering the DRX active state in the current DRX cycle is less than or equal to the third preset value. In this case, after the terminal device performs data transmission on the transmission resource, the terminal device determines whether the starting position or the ending position of the data transmission is less than or equal to a third preset value from the duration interval of the terminal device entering the DRX active state in the current DRX cycle, if yes, the terminal device does not start the first timer; otherwise, the terminal device starts a first timer.

In another possible embodiment, the first information is indicative of whether each of the at least one transmission resource starts the first timer after the data transmission. After receiving the first information, the terminal device can directly determine whether to start the first timer based on the first information without being based on other conditions or rules.

For specific examples of the preset conditions, please refer to the corresponding embodiment of fig. 3A or fig. 3B, and the description thereof is omitted here.

When the terminal device determines that the first timer is not started based on the first information, or when the first information indicates that the first timer is not started, the terminal device performs step 203a; when the terminal device determines to start the first timer based on the first information, or when the first information indicates to start the first timer, the terminal device performs step 203b.

In step 203a, the terminal device does not start the first timer corresponding to the transmission resource after performing data transmission on the transmission resource.

When the terminal equipment determines not to start the first timer corresponding to the transmission resource based on the first information indication, or when the first information indication does not start the first timer corresponding to the transmission resource, the terminal equipment does not start the first timer corresponding to the transmission resource after data transmission is performed on the transmission resource corresponding to the first information.

In a possible implementation manner, the first timer is used for indicating the minimum interval in which the terminal device expects to receive the retransmission schedule, i.e. the duration of the first timer is the minimum interval in which the terminal device expects to receive the retransmission schedule. At this time, the first timer is drx-HARQ-RTT-TimerUL or drx-HARQ-RTT-TimerDL.

In one possible example of this embodiment, for uplink transmission, the transmission resource is a physical layer uplink shared channel PUSCH resource, and the first timer is drx-HARQ-RTT-TimerUL. At this time, when the first information indicates that the drx-HARQ-RTT-timer ul is not started, the terminal device does not start the drx-HARQ-RTT-timer ul corresponding to the PUSCH resource after sending uplink data on the PUSCH resource.

In another possible example of this embodiment, for downlink transmission, the transmission resource is a physical layer downlink shared channel PDSCH resource, and the first timer is drx-HARQ-RTT-TimerDL. At this time, when the first information indicates that the drx-HARQ-RTT-TimerDL is not started, the terminal device does not start the drx-HARQ-RTT-TimerDL corresponding to the PDSCH resource after receiving downlink data on the PDSCH resource.

In another possible example of this embodiment, when the first information indicates that the drx-HARQ-RTT-TimerDL is not started, the terminal device does not start the drx-HARQ-RTT-TimerDL after sending the HARQ feedback for the downlink transmission on the transmission resource. For example, after the terminal device receives downlink data on the PDSCH resource, the terminal device may also send HARQ feedback to the access network device, where the HARQ feedback may be an Acknowledgement (ACK) indicating that the terminal device has successfully received data from the PDSCH; the HARQ feedback may also be a negative-acknowledgement (NACK) indicating that the terminal device did not successfully receive data from the PDSCH. In this example, after the terminal device sends the HARQ feedback, the terminal device does not start drx-HARQ-RTT-TimerDL.

In this embodiment, the terminal device starts the drx-retransmission Timer (e.g., drx-retransmission Timer ul or drx-retransmission Timer dl) only when the drx-HARQ-RTT-Timer (e.g., drx-HARQ-RTT-Timer ul or drx-HARQ-Timer dl) times out. Therefore, when the terminal equipment does not start the drx-HARQ-RTT-Timer, the triggering of starting the drx-retransmission Timer due to timeout of the drx-HARQ-RTT-Timer does not exist. Since the terminal device is not in the DRX active state due to the DRX-retransmission timer being started, the terminal device may not monitor the PDCCH in the DRX-retransmission timer running time. Therefore, the method is beneficial to shortening the duration of the terminal equipment in the DRX activation state, and further beneficial to saving the power consumption of the terminal equipment.

In another possible implementation manner, the first timer is used for indicating a maximum waiting time length of receiving retransmission schedule, that is, the time length of the first timer is the maximum waiting time length of receiving retransmission schedule. At this time, the first timer is drx-retransmission timer UL or drx-retransmission timer DL.

In one possible example of this embodiment, for uplink transmission, the first timer is drx-retransmission timer ul. At this time, when the first information indicates that the drx-retransmission timer ul is not started, the terminal device does not start the drx-retransmission timer ul when the drx-HARQ-RTT-timer ul times out.

In another possible example of this embodiment, for downlink transmission, the first timer is drx-retransmission timer dl. At this time, when the first information indicates that the drx-retransmission TimerDL is not started, the terminal device does not start the drx-retransmission TimerDL when the drx-HARQ-RTT-TimerDL times out.

In this embodiment, although the terminal device can start the drx-HARQ-RTT-Timer (for example, drx-HARQ-RTT-Timer ul or drx-HARQ-RTT-Timer dl), the terminal device drx-HARQ-RTT-Timer timeout does not start the drx-retransmission Timer (for example, drx-retransmission Timer ul or drx-retransmission Timer dl) based on the first information. Therefore, the terminal equipment is not in the DRX activation state because of starting the DRX-retransmission timer, and does not monitor the PDCCH in the operation duration of the DRX-retransmission timer. Therefore, the method is beneficial to shortening the duration of the terminal equipment in the DRX activation state, and further beneficial to saving the power consumption of the terminal equipment.

In step 203b, the terminal device starts a first timer corresponding to the transmission resource after performing data transmission on the transmission resource.

When the terminal equipment determines to start a first timer corresponding to the transmission resource based on the first information indication, or when the first information indication starts the first timer corresponding to the transmission resource, the terminal equipment starts the first timer corresponding to the transmission resource after performing data transmission on the transmission resource corresponding to the first information.

In one possible example of this embodiment, for uplink transmission, the transmission resource is a physical layer uplink shared channel PUSCH resource, and the first timer is drx-HARQ-RTT-TimerUL. At this time, when the first information indicates to start the drx-HARQ-RTT-timer ul, the terminal device starts the drx-HARQ-RTT-timer ul after transmitting uplink data on the PUSCH.

In another possible example of this embodiment, for downlink transmission, the transmission resource is a physical layer downlink shared channel PDSCH resource, and the first timer is drx-HARQ-RTT-TimerDL. At this time, when the first information indicates to start the drx-HARQ-RTT-TimerDL, the terminal device starts the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH.

In another possible example of this embodiment, when the first information indicates to start the drx-HARQ-RTT-TimerDL, the terminal device starts the drx-HARQ-RTT-TimerDL after sending a hybrid automatic repeat request, HARQ, feedback for downlink transmission on the transmission resource.

In one possible example of this embodiment, for uplink transmission, the first timer is drx-retransmission timer ul. At this time, when the first information indicates to start the drx-retransmission timer ul, the terminal device starts the drx-retransmission timer ul when the drx-HARQ-RTT-timer ul times out.

In another possible example of this embodiment, for downlink transmission, the first timer is drx-retransmission timer dl. At this time, when the first information indicates to start the drx-retransmission timer dl, the terminal device starts the drx-retransmission timer dl when the drx-HARQ-RTT-timer dl times out.

In this embodiment, since the terminal device can decide whether to start the first timer corresponding to the transmission resource after data transmission is performed on any one of the at least one transmission resource based on the first information, instead of having to start the first timer after data transmission is completed on the transmission resource, it is beneficial to flexibly control the terminal device to start the first timer at a proper time and enter the DRX active state. In addition, when the terminal equipment determines not to start the first timer based on the first information, the terminal equipment can not enter the DRX activation state, so that the duration of the terminal equipment in the DRX activation state is shortened, and the power consumption of the terminal equipment is saved.

The communication method proposed in the present application will be further described with reference to fig. 3A and 3B.

As shown in fig. 3A, the first information includes at least one character, and the first timer is drx-HARQ-RTT-timerl or drx-HARQ-RTT-TimerDL. The present embodiment may be performed by a terminal device and an access network device, or may be performed by a component of a terminal device (e.g., a component of a processor, a chip, or a chip system) and a component of an access network device (e.g., a component of a processor, a chip, or a chip system). Taking terminal equipment and access network equipment as examples, the terminal equipment and the access network equipment will perform the following steps:

step 301, an access network device sends first information to a terminal device; accordingly, the terminal device receives the first information from the access network device.

In one possible implementation, the access network device sends a transmission resource configuration containing the first information to the terminal device; accordingly, the terminal device receives a transmission resource configuration containing the first information from the access network device. Wherein the transmission resource configuration is used for configuring at least one transmission resource for the terminal device. When the transmission resource configurations sent by the access network equipment are different, the transmission resources configured by the access network equipment for the terminal equipment are different. The following description will be made respectively:

Optionally, the foregoing transmission resource is configured as configuration information for a pre-configured resource (pre-configured resources), which is a pre-configured resource. The pre-configured resources are divided into a Configured Grant (CG) resource for uplink transmission and a semi-persistent scheduling (SPS) resource for downlink transmission according to transmission directions.

Illustratively, the foregoing transmission resource configuration is CG resource configuration, and the foregoing transmission resource is CG resource. For example, the transmission resources are configured as configuration grant type 1 (configured grant Type 1) and the transmission resources are configuration grant type 1 resources. The configuration of the configuration grant type 1 includes parameters such as a time-frequency resource location, a period of CG resources, the number of HARQ processes using CG resources, a modulation and demodulation scheme (modulation and coding scheme, MCS), and the like of the configuration grant type 1, in addition to the first information. After the terminal device receives the configuration of the configuration authorization type 1, the configuration authorization type 1 resource is stored as a configuration uplink authorization (configured uplink grant), and then the terminal device can use the configuration authorization type 1 resource to perform uplink data transmission. As another example, the transmission resource is configured as a configuration of configuration grant type 2 (configured grant Type 2), and the transmission resource is a configuration grant type 2 resource. The configuration of the configuration grant type 2 includes parameters such as a period of CG resources, the number of HARQ processes using CG resources, and the like, in addition to the first information. After the terminal equipment receives the configuration of the configuration authorization type 2, the terminal equipment also needs to receive the activation DCI indicating the time-frequency resource position and the modulation-demodulation mode MCS of the configuration authorization type 2, so that the configuration authorization type 2 resource can be stored as the configuration uplink authorization 2, and the terminal equipment can use the configuration authorization type 2 resource to carry out uplink data transmission.

Illustratively, the foregoing transmission resource configuration is an SPS resource configuration. For example, the access network device transmits an SPS resource configuration to the terminal device, where the SPS resource configuration includes parameters such as a period of SPS resources in addition to the first information. After receiving the SPS resource configuration, the terminal device also needs to receive the activated DCI indicating the time-frequency resource location of the SPS resource and the modulation and demodulation scheme MCS, so as to use the SPS resource to perform downlink data transmission.

In another possible implementation manner, the terminal device may acquire the first information from the active DCI corresponding to the transmission resource configuration.

For example, the terminal device may acquire the first information from the activation DCI of the CG resource configuration. For example, the terminal device receives, from the access network device, an activation DCI for configuration grant type 2, where the activation DCI includes first information, information indicating a time-frequency resource location and a modulation and demodulation scheme MCS of the configuration grant type 2, and the like.

For example, the terminal device may acquire the first information from the activation DCI of the SPS resource configuration. For example, the terminal device receives, from the access network device, an activation DCI of SPS resource configuration, where the activation DCI includes first information, information indicating a time-frequency resource location of SPS resources, a modulation and demodulation scheme MCS, and the like.

In practical applications, the terminal device may use any of the foregoing embodiments to obtain the first information, which is not limited herein.

In this embodiment, the first information includes at least one character. Wherein, the value of each character is any one of two possible values, one value represents starting the drx-HARQ-RTT-Timer, and the other value represents not starting the drx-HARQ-RTT-Timer. For example, the value of each character may be 0 or 1. If the value of the character is 0, the drx-HARQ-RTT-Timer is not started; if the value of the character is 1, the method represents starting the drx-HARQ-RTT-Timer. For another example, the value of each character may be false or true. If the value of the character is false, the drx-HARQ-RTT-Timer is not started, and if the value of the character is true, the drx-HARQ-RTT-Timer is started. The application does not limit what value is used to represent the event of starting the drx-HARQ-RTT-Timer and the event of not starting the drx-HARQ-RTT-Timer.

In addition, each character in the first information corresponds to at least one transmission resource, and is used for indicating whether the terminal equipment starts a first timer corresponding to the transmission resource after data transmission is performed on the transmission resource; or, each character in the first information corresponds to at least one HARQ process, and is configured to instruct the terminal device whether to start a first timer corresponding to the HARQ process after data transmission on a transmission resource associated with the HARQ process.

In one possible implementation, the permutation order between the characters in the first information implicitly indicates the transmission resource or HARQ process corresponding to each character.

The first information is a bit sequence, and one character in the first information is information carried by one bit in the bit sequence. The position of each bit in the bit sequence implicitly indicates the transmission resource or HARQ process to which each bit corresponds. Wherein, the bit with the value of 0 in the bit sequence indicates that the transmission resource indicated by the bit or the drx-HARQ-RTT-Timer corresponding to the HARQ process is not started; and a bit with a value of 1 in the bit sequence represents that a transmission resource indicated by the bit or a drx-HARQ-RTT-Timer corresponding to the HARQ process is started.

For example, taking one bit in the bit sequence as an example for one transmission resource. If the first information is a bit sequence including 6 bits, where the 6 bits correspond to 6 transmission resources that are consecutive in the time domain, the bit sequence "001000" indicates that the drx-HARQ-RTT-Timer is started only after data transmission is performed on the third transmission resource, and the drx-HARQ-RTT-Timer is not started after data transmission is performed on the other transmission resources (e.g., the first transmission resource, the second transmission resource, the fourth transmission resource, the fifth transmission resource, and the sixth transmission resource). For another example, two transmission resources are allocated for one bit in the bit sequence. If the first information is a bit sequence including 6 bits, and the 6 bits correspond to 12 continuous transmission resources in the time domain, a first "0" in the bit sequence "001000" indicates that the drx-HARQ-RTT-Timer is not started after data transmission is performed on the first transmission resource and the second transmission resource, a second "0" in the bit sequence "001000" indicates that the drx-HARQ-RTT-Timer is not started after data transmission is performed on the third transmission resource and the fourth transmission resource, a "1" in the bit sequence "001000" indicates that the drx-HARQ-RTT-Timer is started after data transmission is performed on the third transmission resource and the fourth transmission resource, and so on, and the drx-HARQ-RTT-Timer is not started when data transmission is performed on the fifth to the twelve transmission resources.

It should be appreciated that the case where one bit in the bit sequence corresponds to one HARQ process or a plurality of HARQ processes is similar to the foregoing example, and will not be repeated here.

In another possible implementation, the first information further includes an index of each character, the index of the character being used to indicate, in a display, a transmission resource or HARQ process to which each character corresponds.

Illustratively, the character in the first information corresponds to a transmission resource. The first information includes L characters and indexes of the L characters, wherein L is an integer greater than or equal to 1. The index of the character indicates what character is among the L characters. For example, the index of the character is 0, indicating that the character is the first character of the L characters. For another example, the index of the character is 1, indicating that the character is the second character of the L characters. For another example, the index of the character is 2, indicating that the character is the third character of the L characters. And so on, are not described in detail herein. At this time, the first information may be as shown in the following table 1-1:

TABLE 1-1

Index of each character	0	1	2	3	…	(L-2)	(L-1)
								Value of each character	0	1	0	1	…	0	1

For example, taking first information of l=3 as an example. The value of the character with the index of 0 is 0, which means that the drx-HARQ-RTT-Timer is not started after the data transmission is carried out on the first transmission resource; the value of the character with the index of 1 is 1, and the drx-HARQ-RTT-Timer is started after data transmission is carried out on the second transmission resource; the value of the character with index of 2 is 0, and the drx-HARQ-RTT-Timer is not started after the data transmission is performed on the third transmission resource.

Illustratively, the characters in the first information correspond to HARQ processes. The first information includes M characters and indexes of the M characters, wherein M is an integer greater than or equal to 1. Optionally, the indexes of the M characters are process identifications of M processes respectively. For example, the process identities of the M HARQ processes are i, i+1, i+2, …, i+ (M-1), respectively. At this time, the first information may be as shown in the following table 2-1:

TABLE 2-1

For example, taking first information of m=3 as an example. The first information corresponds to 3 HARQ processes. The character corresponding to the ith HARQ process is 0, which means that the drx-HARQ-RTT-Timer is not started after data transmission is performed on the transmission resource corresponding to the HARQ process marked as i; the character corresponding to the (i+1) th HARQ process is 0, which means that the drx-HARQ-RTT-Timer is not started after data transmission is performed on the transmission resource corresponding to the HARQ process identified as (i+1); the character corresponding to the (i+2) th HARQ process is 1, which means that the drx-HARQ-RTT-Timer is started after data transmission is performed on the transmission resource corresponding to the HARQ process identified as (i+2).

In step 302, the terminal device determines, based on each character, whether to start a discontinuous reception hybrid automatic repeat request round trip delay timer corresponding to the character.

In one possible implementation manner, one character in the first information corresponds to at least one transmission resource, and the terminal device needs to determine which character or characters in the first information corresponds to the transmission resource currently performing data transmission, so as to determine whether to start the drx-HARQ-RTT-Timer corresponding to the transmission resource.

Illustratively, the terminal device, after receiving the first information, can calculate which character in the first information is used by the current transmission resource based on the following equation 1.

i=n modular L; (equation 1)

Wherein N represents an index of a symbol where a transmission resource of the timer is to be determined to be started, i.e., an index of a symbol where a timing of data transmission is located, hereinafter referred to as an nth transmission resource; l represents the number of characters contained in the first information; i represents an index of a character in the first information corresponding to the nth transmission resource.

Illustratively, the terminal device may determine N based on a formula in the MAC protocol that calculates CG resource locations or SPS resources. For example, for CG type 2, upon receiving the activation DCI, the location of the nth CG resource is determined by equation 2 as follows:

[(SFN×numberOfSlotsPerFrame×numberOfSymbolsPerSlot)+(slot number in the frame×numberOfSymbolsPerSlot)+symbol number in the slot]＝

[(SFN _{start time} ×numberOfSlotsPerFrame×numberOfSymbolsPerSlot+slot _{start time} ×numberOfSymbolsPerSlot+symbol _{start time} )+N×periodicity]modulo(1024×numberOfSlotsPerFrame×numberOfSymbolsPerSlot).

wherein numberOfSlotsPerFrame is the number of slots each frame contains; number symbols is the number of symbols contained in each slot; SFN, slot number in the frame and symbol number in the slot are system frame numbers of the Nth CG resource respectively A slot number (i.e., index to instant slot) and a symbol number (i.e., index to symbol); SFN (SFN) _{start time} 、slot _{start time} And symbol _{start time} A system frame number, a slot number (index of instant slot) and a symbol number (i.e., index of symbol) of a PUSCH configuring a first transmission occasion of the grant resource for the initialization, respectively; the periodicity represents the period of configuring the authorized resources; 1024 indicates that one super frame includes 1024 frames.

It should be appreciated that there are variations of equation 2, and this application will be described with reference to equation 2 only.

Illustratively, the terminal device determines the nth transmission resource based on equation 2 and derives i based on equation 1. And then, the terminal equipment determines whether the drx-HARQ-RTT-Timer corresponding to the Nth transmission resource is started or not based on the value of the ith character in the first information. For ease of understanding, taking l=6 and n=61 as an example, the terminal device determines i=61 modular 6=1 based on equation 1, and then the terminal device searches for a character with index 1 in the first information. Taking table 1-1 as an example, the terminal device determines that the value of the character with index 1 is 1, which means that the drx-HARQ-RTT-Timer is started after data transmission. And so on, the terminal equipment can determine the character corresponding to the transmission resource after carrying out data transmission on each transmission resource, and further determine whether to start the drx-HARQ-RTT-Timer after carrying out data transmission on each transmission resource.

In another possible implementation manner, one character in the first information corresponds to at least one HARQ process, and the terminal device needs to determine which character or characters in the first information corresponds to the HARQ process currently performing data transmission, so as to determine whether to start the drx-HARQ-RTT-Timer corresponding to the HARQ process.

For example, if the process identifier of the HARQ process currently performing data transmission by the terminal device is i, the terminal device can determine, based on the first information (for example, an example shown in table 2-1), that the value of the character corresponding to the HARQ process is 0, which indicates that the drx-HARQ-RTT-Timer is not started. And so on, the terminal equipment can determine whether to start the drx-HARQ-RTT-Timer corresponding to each HARQ process based on the first information.

When the character indicates to start the drx-HARQ-RTT-Timer, the terminal device executes step 303a; when the character indicates that the drx-HARQ-RTT-Timer is not started, the terminal device performs step 303b.

In step 303a, the terminal device starts a corresponding discontinuous reception hybrid automatic repeat request round trip delay timer after performing data transmission on the transmission resource corresponding to the character.

After the terminal equipment starts the drx-HARQ-RTT-Timer corresponding to the transmission resource corresponding to the character, if the drx-HARQ-RTT-Timer is overtime, the terminal equipment starts the drx-retransmission Timer corresponding to the transmission resource.

In step 303b, the terminal device does not start the corresponding discontinuous reception hybrid automatic repeat request round trip delay timer after performing data transmission on the transmission resource corresponding to the character.

When the terminal equipment does not start the drx-HARQ-RTT-Timer corresponding to the transmission resource corresponding to the character, the terminal equipment does not start the drx-retransmission Timer because of the excessive time of the drx-HARQ-RTT-Timer.

For ease of understanding, the start states of the respective timers under the action of the first information will be described below with reference to fig. 4A and 4B, respectively.

As shown in fig. 4A, in uplink transmission, the transmission resource is PUSCH resource. Let l=6, the first information is "001000". At this time, the value of the character with index 0 is 0, which means that the drx-HARQ-RTT-timerl is not started after data transmission on the first transmission resource (for example, transmission resource 1) in every 6 transmission resources; the value of the index 1 character is 0, which indicates that drx-HARQ-RTT-timer ul is not started after data transmission on the second transmission resource (e.g., transmission resource 2); the value of the index 2 character is 1, which indicates that drx-HARQ-RTT-TimerUL is started after data transmission is performed on a third transmission resource (e.g., transmission resource 3); the value of the index 3 character is 0, which indicates that drx-HARQ-RTT-timer ul is not started after data transmission on the fourth transmission resource (e.g., transmission resource 4); the value of the index 4 character is 0, which indicates that drx-HARQ-RTT-timer ul is not started after data transmission on the fifth transmission resource (e.g., transmission resource 5); the value of the index 5 character is 0, indicating that drx-HARQ-RTT-timer ul is not started after data transmission on the sixth transmission resource (e.g., transmission resource 6). As can be seen from the example shown in fig. 4A, the terminal device needs to start the drx-HARQ-RTT-timer ul after transmitting on the third transmission resource of the 6 adjacent transmission resources, and after the drx-HARQ-RTT-timer ul corresponding to the third transmission resource is overtime, the drx-retransmission timer ul corresponding to the third transmission resource. At this time, the terminal device enters a DRX active state to monitor a PDCCH for retransmission scheduling from the access network device. In addition, in the dynamic downlink allocation, the operation of the drx-onduration timer and the drx-incactivity timer may also cause the terminal device to enter an active state. The DRX state of the terminal equipment when the three timers are operated can be obtained by combining the time length of the terminal equipment entering the active state caused by the operation of the three timers of the DRX-RetransmissionTimerUL, DRX-onduration timer and the DRX-Inactivitytimer. The DRX state includes DRX ON (indicating DRX active state) and DRX OFF (indicating DRX sleep state). The white box in fig. 4A indicates a period in which the terminal device is in the DRX active state, and the gray box indicates a period in which the DRX active state is not entered due to the non-activation of the DRX-retransmission timer ul. Therefore, the duration that the terminal equipment is in the DRX activation state under the action of the first information is shortened, and the power consumption of the terminal equipment is saved.

As shown in fig. 4B, in downlink transmission, the transmission resource is PDSCH resource. Let l=6, the first information is "001000". Similar to the example shown in fig. 4A, in fig. 4B, the terminal device needs to start drx-HARQ-RTT-TimerDL after transmitting on the third transmission resource of the adjacent 6 transmission resources, and after the drx-HARQ-RTT-TimerDL corresponding to the third transmission resource is overtime, drx-retransmission TimerDL corresponding to the third transmission resource. At this time, the terminal device enters a DRX active state to monitor a PDCCH for retransmission scheduling from the access network device. In addition, in the dynamic downlink allocation, the operation of the drx-onduration timer and the drx-incactivity timer may also cause the terminal device to enter an active state. The DRX state of the terminal equipment when the three timers are operated can be obtained by combining the time length of the terminal equipment entering the active state caused by the operation of the three timers of the DRX-RetransmissionTimerDL, DRX-onduration timer and the DRX-Inactivitytimer. The DRX state includes DRX ON (indicating DRX active state) and DRX OFF (indicating DRX sleep state). In fig. 4B, the white box indicates the duration of the terminal device in the DRX active state, and the gray box indicates the duration of the terminal device not entering the DRX active state because the DRX-retransmission timer dl is not started, so that it can be seen that the duration of the terminal device in the DRX active state under the action of the first information is shortened, which is beneficial for the terminal device to save power consumption.

In this embodiment, the terminal device starts the drx-retransmission Timer (e.g., drx-retransmission Timer ul or drx-retransmission Timer dl) only when the drx-HARQ-RTT-Timer (e.g., drx-HARQ-RTT-Timer ul or drx-HARQ-Timer dl) times out. Therefore, under the condition that the terminal equipment does not start the drx-HARQ-RTT-Timer, the drx-HARQ-RTT-Timer cannot be overtime, and the terminal equipment cannot start the drx-retransmission Timer because of the overtime of the drx-HARQ-RTT-Timer. Since the terminal device does not enter an active state due to the start of drx-retransmission timer, and does not monitor the PDCCH for retransmission scheduling. Therefore, the method is beneficial to shortening the time of the terminal equipment in the activated state, and further beneficial to saving the power consumption of the terminal equipment.

As shown in fig. 3B, another embodiment of a communication method is provided. The first timer is used for indicating the maximum waiting time of the received retransmission schedule, and is drx-retransmission timer UL or drx-retransmission timer DL. Step 302 in fig. 3A may be replaced with step 302a shown in fig. 3B, step 303A in fig. 3A may be replaced with step 303c shown in fig. 3B, and step 303B in fig. 3A may be replaced with step 303d shown in fig. 3B.

In step 302a, the terminal device determines, based on each character, whether to start a discontinuous reception retransmission timer corresponding to a transmission resource corresponding to the character.

Specifically, step 302a in fig. 3B is similar to step 302 in fig. 3A, and reference is made to the description of step 302.

When the character indicates to start drx-retransmission timer, the terminal device executes step 303c; when the character indicates that drx-retransmission timer is not started, the terminal device performs step 303d.

In step 303c, the terminal device starts a corresponding discontinuous reception retransmission timer after performing data transmission on the transmission resource corresponding to the character.

Specifically, after data transmission is performed on a transmission resource corresponding to the character, the terminal equipment starts a drx-HARQ-RTT-Timer corresponding to the transmission resource, and after the drx-HARQ-RTT-Timer is overtime, the terminal equipment starts a drx-retransmission Timer corresponding to the transmission resource.

In step 303d, the terminal device does not start the corresponding discontinuous reception retransmission timer after data transmission on the transmission resource corresponding to the character.

Specifically, after data transmission is performed on a transmission resource corresponding to the character, the terminal equipment starts a drx-HARQ-RTT-Timer corresponding to the transmission resource, and after the drx-HARQ-RTT-Timer is overtime, the terminal equipment does not start the drx-retransmission Timer corresponding to the transmission resource.

For ease of understanding, the start states of the respective timers under the action of the first information will be described below with reference to fig. 4C and 4D, respectively.

As shown in fig. 4C, in uplink transmission, the transmission resource is PUSCH resource. Let l=6, the first information is "001000". At this time, the value of the character with index of 0 is 0, which means that the drx-HARQ-RTT-TimerUL is started after the data transmission is performed on the first transmission resource in every 6 transmission resources, and the drx-HARQ-RTT-TimerUL is not started when the drx-HARQ-RTT-TimerUL is timed out; the value of the character with index of 1 is 0, which means that the drx-HARQ-RTT-TimerUL is started after the data transmission is performed on the second transmission resource, and the drx-HARQ-RTT-TimerUL is not started when the drx-HARQ-RTT-TimerUL is overtime; and so on, are not described in detail herein. As can be seen from the example shown in fig. 4C, the terminal device starts the drx-HARQ-RTT-timer ul after data transmission on each of the 6 adjacent transmission resources, starts the drx-retransmission timer ul only after the drx-HARQ-RTT-timer ul corresponding to the third transmission resource is overtime, and does not start the drx-retransmission timer ul after the drx-HARQ-RTT-timer ul corresponding to the other transmission resources is overtime. Since DRX-HARQ-RTT-timer ul operation does not cause the terminal device to enter the DRX active state, the DRX active state of the terminal device in the example shown in fig. 4C is the same as the DRX active state of the terminal device in the example shown in fig. 4A, i.e., a white box in fig. 4C indicates a duration in which the terminal device is in the DRX active state, and a gray box indicates a duration in which the DRX active state is not entered due to the DRX-retransmission timer ul being not activated. Therefore, the duration that the terminal equipment is in the DRX activation state under the action of the first information is shortened, and the power consumption of the terminal equipment is saved.

As shown in fig. 4D, in downlink transmission, the transmission resource is PDSCH resource. Let l=6, the first information is "001000". Similar to the example shown in fig. 4C, in fig. 4D, the terminal device starts drx-HARQ-RTT-TimerDL after data transmission on each of the 6 adjacent transmission resources, starts drx-retransmission TimerDL only after the drx-HARQ-RTT-TimerDL corresponding to the third transmission resource times out, and does not start drx-retransmission TimerDL after the drx-HARQ-RTT-TimerDL corresponding to the other transmission resources times out. The white box in fig. 4D represents a period in which the terminal device is in the DRX active state, and the gray box represents a period in which the DRX active state is not entered due to the non-activation of DRX-retransmission timer dl. Therefore, the duration that the terminal equipment is in the DRX activation state under the action of the first information is shortened, and the power consumption of the terminal equipment is saved.

In this embodiment, although the terminal device can start the drx-HARQ-RTT-Timer (for example, drx-HARQ-RTT-Timer ul or drx-HARQ-RTT-Timer dl), the terminal device drx-HARQ-RTT-Timer timeout does not start the drx-retransmission Timer (for example, drx-retransmission Timer ul or drx-retransmission Timer dl) based on the first information. Therefore, the terminal device does not enter an active state by starting the drx-retransmission timer, nor does it monitor the PDCCH for retransmission scheduling. Therefore, the method is beneficial to shortening the time of the terminal equipment in the activated state, and further beneficial to saving the power consumption of the terminal equipment.

The communication method proposed in the present application will be further described with reference to fig. 5A and 5B.

As shown in fig. 5A, the first information includes at least one threshold, and the first timer is drx-HARQ-RTT-timerl or drx-HARQ-RTT-TimerDL. The present embodiment may be performed by a terminal device and an access network device, or may be performed by a component of a terminal device (e.g., a component of a processor, a chip, or a chip system) and a component of an access network device (e.g., a component of a processor, a chip, or a chip system). Taking terminal equipment and access network equipment as examples, the terminal equipment and the access network equipment will perform the following steps:

step 501, an access network device sends first information to a terminal device; accordingly, the terminal device receives the first information from the access network device.

In this embodiment, the implementation manner of obtaining the first information by the terminal device is similar to that of step 301, and please refer to the description of step 301, which is omitted here.

In this embodiment, the first information includes at least one threshold, and each threshold corresponds to a preset condition. It is also understood that the first information is used to indicate at least one preset condition. Optionally, the first information further includes an identifier of a preset condition corresponding to each threshold, so as to indicate the preset condition corresponding to the threshold.

Specifically, the preset conditions are in various different embodiments based on the difference of the reference moments, and the following description is given respectively:

In one possible example, the first information includes a first threshold, where a preset condition corresponding to the first threshold is: the duration interval of the end position of the transmission resource from the start time of the next DRX cycle is less than or equal to the first threshold. As shown in fig. 6A, uplink transmission is taken as an example. For the transmission resource 1, the DRX cycle in which the transmission resource 1 is currently located is a DRX cycle (j-1), the next DRX cycle is a DRX cycle j, and the preset condition corresponding to the first threshold is that a duration interval a1 between the end position of the transmission resource 1 and the start position in the DRX cycle j is less than or equal to the first threshold. For the transmission resource 5, the DRX cycle in which the transmission resource 5 is currently located is a DRX cycle j, the next DRX cycle is a DRX cycle (j+1), and the preset condition corresponding to the first threshold is that a duration interval a2 between the end position of the transmission resource 5 and the start position of the DRX cycle (j+1) is smaller than or equal to the first threshold.

Optionally, the first threshold is smaller than a PDB of traffic transmitted by the transmission resource.

In this example, since the terminal device starts the DRX-onduration timer a short time after the start of the DRX cycle (e.g., one slot after the start of the DRX cycle), the terminal device is in the DRX active state and is capable of retransmission scheduling during the DRX-onduration timer operation. Therefore, if the end position of the transmission resource is shorter (e.g., smaller than the first threshold) than the start time of the next DRX cycle, the terminal device has an opportunity to perform retransmission scheduling in the DRX activation time of the next DRX cycle even if the terminal device fails to transmit data transmitted on the current transmission resource. Further, if the first threshold is smaller than the PDB of the service transmitted by the transmission resource, it is ensured that the retransmission scheduling is performed on the data with the transmission failure, and meanwhile, the retransmitted data can be ensured to meet the PDB requirement without affecting the normal operation of the service.

In another possible example, the first information includes a second threshold, where a preset condition corresponding to the second threshold is: the duration interval of the end position of the transmission resource from the start time of the current DRX cycle is less than or equal to the second threshold. Still taking fig. 6A as an example, for the transmission resource 5, the DRX cycle in which the transmission resource 5 is currently located is the DRX cycle j, and the preset condition corresponding to the second threshold is that the duration interval b2 between the end position of the transmission resource 5 and the start position of the DRX cycle j is less than or equal to the second threshold. For the transmission resource 2, the DRX cycle in which the transmission resource 2 is currently located is a DRX cycle j, and the preset condition corresponding to the second threshold is that a duration interval b1 between the end position of the transmission resource 2 and the start position of the DRX cycle j is less than or equal to the second threshold.

Optionally, the second threshold is smaller than a PDB of traffic transmitted by the transmission resource.

In another possible embodiment, the preset condition indicated by the threshold value in the first information is a condition with reference to the second timer. The second timer is a timer capable of enabling the terminal equipment to be in the DRX active state, namely, the terminal equipment is in the DRX active state when the second timer runs. For example, the second timer may be any one of drx-onDurationTimer, drx-InactivityTimer, drx-RetransmissionTimerUL, drx-retransmission timer dl and drx-retransmission timer sl.

Taking the second timer as a drx-onduration timer as an example, the preset condition corresponding to the third threshold is: the duration interval between the end position of the transmission resource and the start position of the next running drx-onduration timer of the terminal device is smaller than or equal to a third threshold. As shown in fig. 6B, uplink transmission is taken as an example. For the transmission resource 1, the DRX cycle in which the transmission resource 1 is currently located is a DRX cycle (j-1), the next DRX cycle is a DRX cycle j, and the preset condition corresponding to the third threshold is that a duration interval c1 between an end position of the transmission resource 1 and a start position of a DRX-onduration timer in the DRX cycle j is smaller than or equal to the third threshold. For the transmission resource 5, the DRX cycle in which the transmission resource 5 is currently located is a DRX cycle j, the next DRX cycle is a DRX cycle (j+1), and the preset condition corresponding to the third threshold is that a duration interval c2 between an end position of the transmission resource 5 and a start position of a DRX-onduration timer in the DRX cycle (j+1) is smaller than or equal to the third threshold.

Taking the second timer as a drx-InactivityTimer as an example, the preset condition corresponding to the third threshold is: the duration interval between the end position of the transmission resource and the start position of the next running drx-InactivityTimer of the terminal device is smaller than or equal to a third threshold. As shown in fig. 6C, uplink transmission is taken as an example. For the transmission resource 1, the current DRX cycle of the transmission resource 1 is a DRX cycle (j-1), the next DRX cycle is a DRX cycle j, and the preset condition corresponding to the third threshold value is that a duration interval f1 between the end position of the transmission resource 1 and the start position of the DRX-InactvityTimer in the DRX cycle j is smaller than or equal to the third threshold value. For the transmission resource 5, the DRX cycle in which the transmission resource 5 is currently located is a DRX cycle j, the next DRX cycle is a DRX cycle (j+1), and the preset condition corresponding to the third threshold is that a duration interval f2 between an end position of the transmission resource 5 and a start position of a DRX-incaivitytimer in the DRX cycle (j+1) is smaller than or equal to the third threshold.

Taking the second timer as a drx-onduration timer as an example, the preset condition corresponding to the fourth threshold is: the duration interval between the end position of the transmission resource and the end position of the drx-onduration timer currently running by the terminal device is greater than or equal to a fourth threshold. In this example, the end position of the transmission resource is before the DRX-onduration timer running end position of the current DRX cycle. Still taking fig. 6B as an example, for the transmission resource 2, the DRX cycle in which the transmission resource 2 is currently located is the DRX cycle j, and the preset condition corresponding to the fourth threshold is that a duration interval d1 between the end position of the transmission resource 2 and the end position of the DRX-onduration timer in the DRX cycle j is greater than or equal to the fourth threshold. For the transmission resource 6, the DRX cycle in which the transmission resource 6 is currently located is the DRX cycle (j+1), and the preset condition corresponding to the fourth threshold is that the duration interval d2 between the end position of the transmission resource 6 and the start position of the DRX-onduration timer in the DRX cycle (j+1) is greater than or equal to the fourth threshold.

Taking the second timer as a drx-InactivityTimer as an example, the preset condition corresponding to the fourth threshold is: the duration interval of the end position of the transmission resource from the end position of the drx-incactivity time currently running by the terminal device is greater than or equal to a fourth threshold. Still taking fig. 6C as an example, for the transmission resource 3, the DRX cycle in which the transmission resource 3 is currently located is a DRX cycle j, and the preset condition corresponding to the fourth threshold is that a duration interval g1 between an end position of the transmission resource 3 and an end position of a DRX-inactivity timer in the DRX cycle j is greater than or equal to the fourth threshold.

Taking the second timer as a drx-onduration timer as an example, the preset condition corresponding to the fifth threshold is: the duration interval between the end position of the transmission resource and the start position of the drx-onduration timer currently running by the terminal device is smaller than or equal to a fifth threshold. In this example, the end position of the transmission resource may be before the DRX-onduration timer operation start position of the current DRX cycle, or after the operation end position. Still taking fig. 6B as an example, for the transmission resource 2, the DRX cycle in which the transmission resource 2 is currently located is the DRX cycle j, and the preset condition corresponding to the third threshold is that the duration interval e1 between the end position of the transmission resource 2 and the start position of the DRX-onduration timer in the DRX cycle j is less than or equal to the fifth threshold. For the transmission resource 6, the DRX cycle in which the transmission resource 6 is currently located is the DRX cycle (j+1), and the preset condition corresponding to the third threshold is that a duration interval e2 between the end position of the transmission resource 6 and the start position of the DRX-onduration timer in the DRX cycle (j+1) is less than or equal to a fifth threshold.

Taking the second timer as a drx-InactivityTimer as an example, the preset condition corresponding to the fifth threshold is: the duration interval of the end position of the transmission resource from the start position of the drx-InactivityTimer currently running by the terminal device is smaller than or equal to a fifth threshold. As shown in fig. 6C, in uplink transmission, for transmission resource 3, the DRX cycle in which transmission resource 3 is currently located is DRX cycle j, and the time domain position of transmission resource 3 is located during DRX-incaactytimer operation. In this case, the preset condition corresponding to the fifth threshold is that the duration interval h1 between the end position of the transmission resource 3 and the start position of the DRX-incaactytimer in the DRX cycle j is greater than or equal to the fifth threshold.

It should be understood that, in practical applications, the network side may also configure preset conditions related to other factors, which are not listed here.

Step 502, the terminal device determines whether to start a discontinuous reception hybrid automatic repeat request round trip delay timer corresponding to the transmission resource based on the preset condition corresponding to each threshold.

When the terminal device meets at least one of preset conditions corresponding to the threshold carried by the first information, the terminal device executes step 503a; when the terminal device does not meet all preset conditions corresponding to the threshold carried by the first information, the terminal device executes step 503b.

In one possible implementation manner, if the first information includes only one threshold, the terminal device determines whether to start the drx-HARQ-RTT-Timer based on a preset condition corresponding to the one threshold. Taking the example that the first information only includes the first threshold, if the position of the transmission resource meets the preset condition corresponding to the first threshold, the terminal device determines that the drx-HARQ-RTT-Timer corresponding to the transmission resource is not started, that is, the terminal device will execute step 503a; if the location of the transmission resource does not meet the preset condition corresponding to the first threshold, the terminal device determines to start the drx-HARQ-RTT-Timer corresponding to the transmission resource, i.e. the terminal device will execute step 503b. Specifically, please refer to the related description in the foregoing step 501 for the preset condition corresponding to the first threshold, which is not described herein.

In another possible implementation manner, if the first information includes a plurality of thresholds, the terminal determines whether to start the drx-HARQ-RTT-Timer based on a preset condition corresponding to the plurality of thresholds. When at least one of the plurality of preset conditions is satisfied, the terminal device determines that the drx-HARQ-RTT-Timer is not started, i.e. the terminal device will execute step 503a; when none of the above mentioned preset conditions is met, the terminal device determines to start the drx-HARQ-RTT-Timer, i.e. the terminal device will execute step 503b. Taking the example that the first information comprises a third threshold value and a fourth threshold value. If the terminal device determines that the position of the transmission resource meets the preset condition corresponding to the third threshold value and/or the preset condition corresponding to the fourth threshold value, the terminal device determines that the drx-HARQ-RTT-Timer corresponding to the transmission resource is not started, that is, the terminal device will execute step 503a; if the position of the transmission resource does not meet the preset condition corresponding to the third threshold and does not meet the preset condition corresponding to the fourth threshold, the terminal device determines to start the drx-HARQ-RTT-Timer corresponding to the transmission resource, i.e. the terminal device will execute step 503b.

In step 503a, the terminal device starts a corresponding discontinuous reception hybrid automatic repeat request round trip delay timer after performing data transmission on the transmission resource.

After the terminal equipment starts the drx-HARQ-RTT-Timer corresponding to the transmission resource, if the drx-HARQ-RTT-Timer is overtime, the terminal equipment starts the drx-retransmission Timer corresponding to the transmission resource.

In step 503b, the terminal device does not start the corresponding discontinuous reception hybrid automatic repeat request round trip delay timer after data transmission on the transmission resource.

When the terminal equipment does not start the drx-HARQ-RTT-Timer corresponding to the transmission resource, the terminal equipment does not start the drx-retransmission Timer because of the excessive time of the drx-HARQ-RTT-Timer.

Specifically, the starting state of each timer under the action of the first information is similar to that of the previous step 303a and step 303b, and will not be described herein.

As shown in fig. 5B, another embodiment of a communication method is provided. The first timer is used for indicating the waiting time of receiving retransmission scheduling, and the first timer is drx-retransmission timer UL or drx-retransmission timer DL.

At this time, the preset conditions described in the foregoing step 501 may be replaced by any one of the following embodiments:

In one possible example, the first information includes a first threshold, where a preset condition corresponding to the first threshold is: the duration interval of the DRX-HARQ-RTT-Timer timeout time from the start time of the next DRX cycle is less than or equal to the first threshold.

In another possible example, the first information includes a second threshold, where a preset condition corresponding to the second threshold is: and the duration interval between the DRX-HARQ-RTT-Timer timeout time and the starting time of the current DRX cycle is smaller than or equal to a second threshold.

In one possible example, the first information includes a third threshold, where a preset condition corresponding to the third threshold is: and the duration interval of the overtime moment of the drx-HARQ-RTT-Timer from the starting position of the second Timer running next by the terminal equipment is smaller than or equal to a third threshold value.

In another possible example, the first information includes a fourth threshold, where a preset condition corresponding to the fourth threshold is: and the duration interval between the time-out moment of the drx-HARQ-RTT-Timer and the end position of the second Timer currently running by the terminal equipment is larger than or equal to a fourth threshold value.

In another possible example, the first information includes a fifth threshold, where a preset condition corresponding to the fifth threshold is: and the duration interval of the overtime moment of the drx-HARQ-RTT-Timer from the starting position of the second Timer currently running by the terminal equipment is smaller than or equal to a fifth threshold value.

In one possible example, the first information includes a sixth threshold, where a preset condition corresponding to the sixth threshold is: the duration interval of the DRX-HARQ-RTT-Timer timeout time from the start time of the next DRX activation time is less than or equal to the sixth threshold.

In another possible example, the first information includes a seventh threshold, where a preset condition corresponding to the seventh threshold is: the DRX-HARQ-RTT-Timer timeout is at the DRX activation time and the duration interval from the end of the current DRX activation time is greater than or equal to the seventh threshold.

In another possible example, the first information includes an eighth threshold, where a preset condition corresponding to the eighth threshold is: the DRX-HARQ-RTT-Timer timeout is at the DRX activation time and the duration interval from the start time of the current DRX activation time is less than or equal to the eighth threshold.

Step 502 in fig. 5A may be replaced with step 502a shown in fig. 5B, step 503a in fig. 5A may be replaced with step 503c shown in fig. 5B, and step 503B in fig. 5A may be replaced with step 503d shown in fig. 5B.

In step 502a, the terminal device determines whether to start a discontinuous reception retransmission timer corresponding to the transmission resource based on a preset condition corresponding to each threshold.

Specifically, step 502a in fig. 5B is similar to step 502 in fig. 5A, and reference is made to the description of step 502.

When the terminal device meets at least one of preset conditions corresponding to the threshold carried by the first information, the terminal device executes step 503c; when the terminal device does not meet all preset conditions corresponding to the threshold carried by the first information, the terminal device executes step 503d.

In step 503c, the terminal device starts a corresponding discontinuous reception retransmission timer after data transmission on the transmission resource.

Specifically, after data transmission is performed on the transmission resource, the terminal equipment starts the drx-HARQ-RTT-Timer corresponding to the transmission resource, and after the drx-HARQ-RTT-Timer is overtime, the terminal equipment starts the drx-retransmission Timer corresponding to the transmission resource.

In step 503d, the terminal device does not start the corresponding discontinuous reception retransmission timer after the data transmission on the transmission resource.

Specifically, after data transmission is performed on the transmission resource, the terminal equipment starts the drx-HARQ-RTT-Timer corresponding to the transmission resource, and after the drx-HARQ-RTT-Timer is overtime, the terminal equipment does not start the drx-retransmission Timer corresponding to the transmission resource.

As shown in fig. 7, a schematic structural diagram of a communication device 70 according to the present embodiment is provided. It should be understood that the terminal device in the foregoing method embodiment corresponding to fig. 2, 3A, 3B, 5A or 5B may be based on the structure of the communication apparatus 70 shown in fig. 7 in this embodiment.

The communication device 70 comprises at least one processor 701, at least one memory 702 and at least one transceiver 703. Wherein the processor 701, the memory 702 and the transceiver 703 are connected. Optionally, the communication apparatus 70 may further comprise an input device 705, an output device 706, and one or more antennas 704. Wherein an antenna 704 is coupled to the transceiver 703, and an input device 705 and an output device 706 are coupled to the processor 701.

In this embodiment, the memory 702 is mainly used for storing software programs and data. The memory 702 may be separate and coupled to the processor 701. Alternatively, the memory 702 may be integrated with the processor 701, for example within one or more chips. The memory 702 is capable of storing program codes for implementing the technical solutions of the embodiments of the present application, and is controlled to be executed by the processor 701, and various types of computer program codes executed may also be regarded as drivers of the processor 701. It should be understood that fig. 7 in the present embodiment shows only one memory and one processor, but in practical application, the communication device 70 may have a plurality of processors or a plurality of memories, which is not limited herein. Further, the memory 702 may also be referred to as a storage medium or storage device or the like. The memory 702 may be a storage element on the same chip as the processor (i.e., an on-chip storage element) or a separate storage element, which is not limited in this embodiment of the present application.

In this embodiment, a transceiver 703 may be used to support the reception or transmission of radio frequency signals between the communication device 70 and the access network equipment, and the transceiver 703 may be connected to an antenna 704. The transceiver 703 includes a transmitter Tx and a receiver Rx. Specifically, the one or more antennas 704 may receive radio frequency signals, and the receiver Rx of the transceiver 703 is configured to receive the radio frequency signals from the antennas 704, convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to the processor 701, so that the processor 701 performs further processing, such as demodulation processing and decoding processing, on the digital baseband signals or digital intermediate frequency signals. The transmitter Tx in the transceiver 703 is also operative to receive and convert modulated digital baseband signals or digital intermediate frequency signals from the processor 701 to radio frequency signals and transmit the radio frequency signals via the one or more antennas 704. Specifically, the receiver Rx may selectively perform one or more steps of down-mixing processing and analog-to-digital conversion processing on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal, where the order of the down-mixing processing and the analog-to-digital conversion processing is adjustable. The transmitter Tx may selectively perform one or more stages of up-mixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or the digital intermediate frequency signal to obtain a radio frequency signal, and the sequence of the up-mixing processing and the digital-to-analog conversion processing may be adjustable. The digital baseband signal and the digital intermediate frequency signal may be collectively referred to as a digital signal.

It should be appreciated that the aforementioned transceiver 703 may also be referred to as a transceiver unit, transceiver device, etc. Alternatively, a device for implementing a receiving function in the transceiver unit may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiver unit may be regarded as a transmitting unit, that is, the transceiver unit includes a receiving unit and a transmitting unit, where the receiving unit may also be referred to as a receiver, an input port, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, or a transmitting circuit, etc.

The processor 701 may be a baseband processor or a central processing unit (central processing unit, CPU), and the baseband processor and the CPU may be integrated or separated. The processor 701 may be configured to perform various functions for the terminal device, for example, to process a communication protocol and communication data, or to control the entire terminal device, execute a software program, and process data of the software program; or to assist in completing computational processing tasks such as processing graphics images or audio, etc.; or the processor 701 may be configured to implement one or more of the functions described above.

In addition, the output device 706 is in communication with the processor 701, and may display information in a variety of ways, particularly without limitation.

Specifically, the communication device 70 is configured to perform the method of the terminal device in the foregoing corresponding embodiment of fig. 2, fig. 3A, fig. 3B, fig. 5A, or fig. 5B. The transceiver 703 in the communication device 70 is for receiving the first information. The processor 701 is configured to determine whether to start the first timer based on the first information. The processor 701 is further configured to, when determining, based on the first information, not to start the first timer corresponding to the transmission resource after performing data transmission on the transmission resource; or when the first timer corresponding to the transmission resource is determined to be started based on the first information, starting the first timer corresponding to the transmission resource after data transmission is performed on the transmission resource. The time length of the first timer is the minimum interval of retransmission scheduling or the maximum waiting time length of receiving retransmission scheduling.

In this embodiment, since the communication device 70 is capable of deciding whether to start the first timer corresponding to the transmission resource after the data transmission on the transmission resource based on the first information, rather than having to start the first timer after the data transmission on the transmission resource is completed, it is beneficial to flexibly control the communication device 70 to start the first timer at a suitable time to enter the DRX active state. In addition, when the communication device 70 determines not to start the first timer based on the first information, the communication device 70 may not enter the DRX-active state, and thus, it is advantageous to shorten the duration in which the communication device 70 is in the DRX-active state, and to save power consumption of the communication device 70.

Optionally, the first information is carried in a transmission resource configuration corresponding to the transmission resource; or, the first information is carried in the downlink control information DCI for activating the transmission resource.

In a possible embodiment, the first information indicates a threshold value, which corresponds to a preset condition. The processor 701 is specifically configured to determine that the first timer is not started after data transmission on the transmission resource when at least one of the preset conditions is satisfied; the preset condition satisfies that a duration interval between a starting position or an ending position of the transmission resource and a next time the terminal device enters the DRX active state is smaller than or equal to a threshold value, and/or the preset condition satisfies that a duration interval between the starting position or the ending position of the transmission resource and a terminal device exits the DRX active state in a current DRX period is larger than or equal to the threshold value.

In one possible example, the preset condition satisfies at least one of:

In another possible example, the preset condition satisfies at least one of:

In another possible embodiment, the first information includes a first sequence including at least one bit, each bit corresponding to at least one transmission resource, each bit being used to indicate whether the corresponding at least one transmission resource starts the first timer after data transmission.

In another possible embodiment, the first information comprises a second sequence comprising at least one bit, each corresponding to at least one HARQ process associated with a transmission resource configuration, each bit being for indicating whether the first timer is started after data transmission by the at least one HARQ process on the associated transmission resource.

Further, the first timer in the communication device 70 may have various embodiments as follows:

In one possible implementation, the transmission resource is a physical layer uplink shared channel PUSCH resource, and the first timer is drx-HARQ-RTT-timer ul. The processor 701 is specifically configured to, when the first information indicates that the drx-HARQ-RTT-timer ul is not started, not start the drx-HARQ-RTT-timer ul after uplink data is sent on the PUSCH resource; or when the first information indicates to start the drx-HARQ-RTT-timer ul, starting the drx-HARQ-RTT-timer ul after uplink data is transmitted on the PUSCH resource.

In one possible implementation, the transmission resource is a physical layer downlink shared channel PDSCH resource, and the first timer is drx-HARQ-RTT-TimerDL. The processor 701 is specifically configured to not activate the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource when the first information indicates that the drx-HARQ-RTT-TimerDL is not activated; or when the first information indicates to start the drx-HARQ-RTT-TimerDL, starting the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource.

In one possible implementation, the first timer is drx-retransmission timer ul. The processor 701 is specifically configured to, when the first information indicates that the drx-retransmission timer ul is not started, not start the drx-retransmission timer ul when the drx-HARQ-RTT-timer ul corresponding to the transmission resource is timed out; or when the first information indicates to start the drx-retransmission timer ul, starting the drx-retransmission timer ul when the drx-HARQ-RTT-timer ul corresponding to the transmission resource is timed out.

In one possible implementation, the first timer is drx-retransmission timer dl. The processor 701 is specifically configured to not activate drx-retransmission timer dl when drx-HARQ-RTT-timer dl times out when the first information indicates that drx-retransmission timer dl is not activated; or when the first information indicates that the drx-retransmission timer dl is started, starting the drx-retransmission timer dl when the drx-HARQ-RTT-timer dl times out.

It should be noted that, the specific implementation and the beneficial effects of the present embodiment may refer to the method of the terminal device in the foregoing embodiment, which is not described herein again.

As shown in fig. 8, a schematic structural diagram of a communication device 80 according to the present embodiment is provided. It should be understood that the access network device in the foregoing method embodiment corresponding to fig. 2, 3A, 3B, 5A, or 5B may be based on the structure of the communication apparatus 80 shown in fig. 8 in this embodiment.

The communication device 80 comprises at least one processor 801, at least one memory 802, at least one transceiver 803, at least one network interface 805, and one or more antennas 804. The processor 801, the memory 802, the transceiver 803 and the network interface 805 are connected by connection means, and the antenna 804 is connected to the transceiver 803. The connection device may include various interfaces, transmission lines, buses, and the like, which are not limited in this embodiment.

The memory 802 is mainly used for storing software programs and data. The memory 802 may be separate and coupled to the processor 801. Alternatively, the memory 802 may be integrated with the processor 801, for example within one or more chips. The memory 802 is capable of storing program codes for executing the technical solutions of the embodiments of the present application, and the processor 801 controls the execution, and various types of executed computer program codes can also be regarded as drivers of the processor 801. It should be understood that fig. 8 in the present embodiment shows only one memory and one processor, but in practical application, the communication device 80 may have a plurality of processors or a plurality of memories, which is not limited herein. Further, the memory 802 may also be referred to as a storage medium or a storage device, etc. Memory 802 may be a memory element on the same chip as the processor (i.e., an on-chip memory element) or a separate memory element, as embodiments of the present application are not limited in this regard.

In this embodiment, the transceiver 803 may be used to support reception or transmission of radio frequency signals between the communication device 80 and the terminal device, and the transceiver 803 may be connected to the antenna 804. The transceiver 803 includes a transmitter Tx and a receiver Rx. Specifically, the one or more antennas 804 may receive radio frequency signals, and the receiver Rx of the transceiver 803 is configured to receive the radio frequency signals from the antennas 804, convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to the processor 801, so that the processor 801 performs further processing, such as demodulation processing and decoding processing, on the digital baseband signals or digital intermediate frequency signals. The transmitter Tx in the transceiver 803 is also operative to receive modulated digital baseband signals or digital intermediate frequency signals from the processor 801, to convert the modulated digital baseband signals or digital intermediate frequency signals to radio frequency signals, and to transmit the radio frequency signals via the one or more antennas 804. Specifically, the receiver Rx may selectively perform one or more steps of down-mixing processing and analog-to-digital conversion processing on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal, where the order of the down-mixing processing and the analog-to-digital conversion processing is adjustable. The transmitter Tx may selectively perform one or more stages of up-mixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or the digital intermediate frequency signal to obtain a radio frequency signal, and the sequence of the up-mixing processing and the digital-to-analog conversion processing may be adjustable. The digital baseband signal and the digital intermediate frequency signal may be collectively referred to as a digital signal.

It should be appreciated that the aforementioned transceiver 803 may also be referred to as a transceiver unit, transceiver device, etc. Alternatively, a device for implementing a receiving function in the transceiver unit may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiver unit may be regarded as a transmitting unit, that is, the transceiver unit includes a receiving unit and a transmitting unit, where the receiving unit may also be referred to as a receiver, an input port, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, or a transmitting circuit, etc.

Further, the foregoing processor 801 is mainly used for processing communication protocols and communication data, and controlling the entire network device, executing software programs, and processing data of the software programs, for example, for supporting the communication apparatus 80 to perform the actions described in the foregoing embodiments. The communication device 80 may include a baseband processor that is mainly used to process the communication protocol and the communication data, and a central processor that is mainly used to control the entire communication device 80, execute a software program, and process the data of the software program. As the processor 801 in fig. 8 may integrate the functions of a baseband processor and a central processing unit, those skilled in the art will appreciate that the baseband processor and the central processing unit may also be separate processors, interconnected by bus technology, etc. Those skilled in the art will appreciate that the communication device 80 may include a plurality of baseband processors to accommodate different network formats, the communication device 80 may include a plurality of central processors to enhance its processing capabilities, and the various components of the communication device 80 may be connected by various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in a memory in the form of a software program, which is executed by the processor to realize the baseband processing function.

In addition, the aforementioned network interface 805 is used to connect the communication device 80 with other communication devices through a communication link. In particular, the network interface 805 may comprise a network interface between the communication device 80 and a core network element, such as an S1 interface; the network interface 805 may also comprise a network interface, such as an X2 or Xn interface, between the communication device 80 and other network equipment, such as other access network equipment or core network elements.

In one possible implementation, the communication device 80 is configured to perform the method in the foregoing corresponding embodiment of fig. 2, 3A, 3B, 5A, or 5B. Specifically, in the communication apparatus 80, the processor 801 is configured to determine first information, where the first information is used for determining whether to start a first timer corresponding to a transmission resource, where a duration of the first timer is a minimum interval of retransmission scheduling or a maximum waiting duration of receiving retransmission scheduling. The transceiver 803 is for transmitting the first information.

In this embodiment, since the communication device 80 can send the first information for determining whether to start the first timer corresponding to the transmission resource to the terminal device, the terminal device can decide whether to start the first timer corresponding to the transmission resource after the data transmission on the transmission resource based on the first information, instead of having to start the first timer after the data transmission on the transmission resource is completed. Therefore, the terminal equipment is flexibly controlled to start the first timer at a proper time to enter the DRX activation state. In addition, when the first information indicates that the first timer is not started, the terminal equipment can not enter the DRX activation state after receiving the first information, so that the duration of the terminal equipment in the DRX activation state is shortened, and the power consumption of the terminal equipment is saved.

In one possible example, the preset condition satisfies at least one of:

In another possible example, the preset condition satisfies at least one of:

Further, the first timer may have the following various embodiments:

It should be noted that, the specific implementation and the beneficial effects of this embodiment may refer to the method of the access network device in the foregoing embodiment, which is not described herein again.

As shown in fig. 9, the present application also provides an apparatus 90. The apparatus 90 may be a terminal device or an access network device, or may be a component (e.g., an integrated circuit, a chip, etc.) of a terminal device or an access network device. The apparatus 90 may also be other communication modules for implementing the methods in the method embodiments of the present application.

The apparatus 90 may comprise a processing module 901 (or referred to as a processing unit). Optionally, an interface module 902 (or referred to as a transceiver unit or transceiver module) and a storage module 903 (or referred to as a storage unit) may also be included. The interface module 902 is used to enable communication with other devices. The interface module 902 may be, for example, a transceiver module or an input-output module.

In one possible design, one or more modules as in FIG. 9 may be implemented by one or more processors or by one or more processors and memory; or by one or more processors and transceivers; or by one or more processors, memories, and transceivers, to which embodiments of the present application are not limited. The processor, the memory and the transceiver can be arranged separately or integrated.

The apparatus 90 has a function of implementing the terminal device described in the embodiment of the present application. For example, the apparatus 90 includes a module or a unit or means (means) corresponding to the steps involved in the terminal device executing the terminal device described in the embodiments of the present application, where the function or the unit or means (means) may be implemented by software, or implemented by hardware, or implemented by executing corresponding software by hardware, or implemented by a combination of software and hardware. Reference is further made in detail to the corresponding description in the foregoing corresponding method embodiments.

Alternatively, the apparatus 90 has a function of implementing the access network device described in the embodiments of the present application. For example, the apparatus 90 includes a module or a unit or means (means) corresponding to the steps involved in the access network device in executing the access network device described in the embodiments of the present application, where the function or the unit or means (means) may be implemented by software, or implemented by hardware, or implemented by executing corresponding software by hardware, or implemented by a combination of software and hardware. Reference is further made in detail to the corresponding description in the foregoing corresponding method embodiments.

Alternatively, each module in the apparatus 90 in the embodiments of the present application may be used to perform the method described in fig. 2, fig. 3A, fig. 3B, fig. 5A, or fig. 5B in the embodiments of the present application.

In one possible design, the interface module 902 in the communication device 90 is configured to receive the first information when the communication device 90 performs a method corresponding to the terminal device. The processing module 901 is configured to determine whether to start the first timer based on the first information. The processing module 901 is further configured to, when determining, based on the first information, that a first timer corresponding to a transmission resource is not started, not start the first timer corresponding to the transmission resource after performing data transmission on the transmission resource; or when the first timer corresponding to the transmission resource is determined to be started based on the first information, starting the first timer corresponding to the transmission resource after data transmission is performed on the transmission resource. The time length of the first timer is the minimum interval of retransmission scheduling or the maximum waiting time length of receiving retransmission scheduling.

In a possible embodiment, the first information indicates a threshold value, which corresponds to a preset condition. The processing module 901 is specifically configured to determine that the first timer is not started after data transmission is performed on the transmission resource when at least one of the preset conditions is satisfied; the preset condition satisfies that a duration interval between a starting position or an ending position of the transmission resource and a next time the terminal device enters the DRX active state is smaller than or equal to a threshold value, and/or the preset condition satisfies that a duration interval between the starting position or the ending position of the transmission resource and a terminal device exits the DRX active state in a current DRX period is larger than or equal to the threshold value.

In one possible example, the preset condition satisfies at least one of:

In another possible example, the preset condition satisfies at least one of:

Further, the first timer in the communication device 90 may have various embodiments as follows:

In one possible implementation, the transmission resource is a physical layer uplink shared channel PUSCH resource, and the first timer is drx-HARQ-RTT-timer ul. The processing module 901 is specifically configured to, when the first information indicates that the drx-HARQ-RTT-timer ul is not started, not start the drx-HARQ-RTT-timer ul after uplink data is sent on the PUSCH resource; or when the first information indicates to start the drx-HARQ-RTT-timer ul, starting the drx-HARQ-RTT-timer ul after uplink data is transmitted on the PUSCH resource.

In one possible implementation, the transmission resource is a physical layer downlink shared channel PDSCH resource, and the first timer is drx-HARQ-RTT-TimerDL. The processing module 901 is specifically configured to, when the first information indicates that the drx-HARQ-RTT-TimerDL is not started, not start the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource; or when the first information indicates to start the drx-HARQ-RTT-TimerDL, starting the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource.

In one possible implementation, the first timer is drx-retransmission timer ul. The processing module 901 is specifically configured to, when the first information indicates that the drx-retransmission timer ul is not started, not start the drx-retransmission timer ul when the drx-HARQ-RTT-timer ul corresponding to the transmission resource is timed out; or when the first information indicates to start the drx-retransmission timer ul, starting the drx-retransmission timer ul when the drx-HARQ-RTT-timer ul corresponding to the transmission resource is timed out.

In one possible implementation, the first timer is drx-retransmission timer dl. The processing module 901 is specifically configured to, when the first information indicates that the drx-retransmission timer dl is not started, not start the drx-retransmission timer dl when the drx-HARQ-RTT-timer dl is timed out; or when the first information indicates that the drx-retransmission timer dl is started, starting the drx-retransmission timer dl when the drx-HARQ-RTT-timer dl times out.

In another possible design, the communication device 90 performs the method corresponding to the access network equipment when the communication device 90 performs the method corresponding to the access network equipment

The processing module 901 is configured to determine first information, where the first information is used for determining whether to start a first timer corresponding to a transmission resource, where a duration of the first timer is a minimum interval of retransmission scheduling or a maximum waiting duration of receiving retransmission scheduling. The interface module 902 is configured to send the first information.

In one possible example, the preset condition satisfies at least one of:

In another possible example, the preset condition satisfies at least one of:

Further, the first timer may have the following various embodiments:

Furthermore, the present application provides a computer program product comprising one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are produced in whole or in part. For example, the method related to the terminal device in fig. 2, 3A, 3B, 5A or 5B as described above is implemented. As another example, the method associated with the access network device of fig. 2, 3A, 3B, 5A, or 5B as described above may be implemented. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). Computer readable storage media can be any available media that can be stored by a computer or data storage devices such as servers, data centers, etc. that contain an integration of one or more available media. Usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital versatile discs (digital versatile disc, DVDs)), or semiconductor media (e.g., solid State Disks (SSDs)), or the like.

Furthermore, the present application also provides a computer-readable storage medium storing a computer program to be executed by a processor to implement a method related to a terminal device as in the foregoing fig. 2, 3A, 3B, 5A, or 5B; or to implement the method associated with the access network device as in the previous figures 2, 3A, 3B, 5A or 5B.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, the method embodiments described above may be implemented alone or in combination. The terminology and related techniques involved in the various embodiments may be referenced to each other. That is, the technical solutions of different embodiments that do not contradict or logically conflict may be combined, and the application is not limited.

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

Claims

1. A method of communication, comprising:

receiving first information;

when the first timer corresponding to the transmission resource is not started based on the first information, not starting the first timer corresponding to the transmission resource after data transmission is carried out on the transmission resource; when a first timer corresponding to a transmission resource is determined to be started based on the first information, starting the first timer corresponding to the transmission resource after data transmission is performed on the transmission resource;

the time length of the first timer is the minimum interval of retransmission scheduling or the maximum waiting time length of receiving retransmission scheduling.

2. The method of claim 1, wherein the first information indicates a threshold value, the threshold value corresponding to a preset condition;

when determining not to start the first timer corresponding to the transmission resource based on the first information, not starting the first timer corresponding to the transmission resource after data transmission is performed on the transmission resource, including:

when at least one preset condition is met, determining that the first timer is not started after data transmission is performed on the transmission resource;

and the preset condition satisfies that the duration interval between the starting position or the ending position of the transmission resource and the next time the terminal equipment enters the Discontinuous Reception (DRX) active state is smaller than or equal to a threshold value, and/or the duration interval between the starting position or the ending position of the transmission resource and the terminal equipment in the current DRX period exits the DRX active state is larger than or equal to the threshold value.

3. The method of claim 2, wherein the preset condition satisfies at least one of:

the duration interval of the starting position/ending position of the transmission resource from the starting moment of the next DRX cycle is smaller than or equal to a first threshold value; or,

and the duration interval of the starting position/ending position of the transmission resource from the starting moment of the current DRX cycle is smaller than or equal to a second threshold value.

4. The method of claim 2, wherein the preset condition satisfies at least one of:

the duration interval of the starting position/ending position of the transmission resource from the starting position of the second timer operated next by the terminal equipment is smaller than or equal to a third threshold value; or,

the duration interval of the starting position/ending position of the transmission resource from the ending position of the second timer currently running by the terminal equipment is larger than or equal to a fourth threshold value; or,

the duration interval of the starting position/ending position of the transmission resource from the starting position of the second timer currently running by the terminal equipment is smaller than or equal to a fifth threshold value;

and the terminal equipment is in a DRX activation state when the second timer runs.

5. The method of claim 2, wherein the preset condition satisfies at least one of:

the duration interval of the starting position/ending position of the transmission resource from the starting moment of the next DRX activation time is smaller than or equal to a sixth threshold; or,

the starting position/ending position of the transmission resource is positioned at the DRX activation time, and the duration interval from the ending time of the current DRX activation time is larger than or equal to a seventh threshold value; or,

the starting position/ending position of the transmission resource is at the DRX activation time and a duration interval from the starting time of the current DRX activation time is less than or equal to an eighth threshold.

6. The method of claim 1, wherein the first information comprises a first sequence comprising at least one bit, each bit corresponding to at least one transmission resource, each bit being used to indicate whether the corresponding at least one transmission resource starts the first timer after data transmission.

7. The method of claim 1, wherein the first information comprises a second sequence comprising at least one bit, each bit corresponding to at least one hybrid automatic repeat request, HARQ, process associated with a transmission resource configuration, each bit being used to indicate whether the first timer is started after data transmission by the at least one HARQ process on the associated transmission resource.

8. The method according to any of claims 1 to 7, characterized in that the duration of the first timer is the minimum interval of retransmission scheduling, the first timer being drx-HARQ-RTT-timerl or drx-HARQ-RTT-TimerDL.

9. The method of claim 8, wherein the transmission resource is a physical layer uplink shared channel PUSCH resource, and the first timer is drx-HARQ-RTT-timer ul;

when the first information indicates that the drx-HARQ-RTT-TimerUL is not started, not starting the drx-HARQ-RTT-TimerUL after uplink data is sent on the PUSCH resource;

or,

when determining to start a first timer corresponding to a transmission resource based on the first information, starting the first timer corresponding to the transmission resource after data transmission is performed on the transmission resource, including:

and when the first information indicates to start the drx-HARQ-RTT-TimerUL, starting the drx-HARQ-RTT-TimerUL after uplink data is sent on the PUSCH resource.

10. The method of claim 8, wherein the transmission resource is a physical layer downlink shared channel, PDSCH, resource and the first timer is drx-HARQ-RTT-TimerDL;

when the first information indicates that the drx-HARQ-RTT-TimerDL is not started, not starting the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource;

or,

and when the first information indicates to start the drx-HARQ-RTT-TimerDL, starting the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource.

11. The method according to any one of claims 1 to 7, wherein the duration of the first timer is a maximum waiting duration for receiving a retransmission schedule, and the first timer is drx-retransmission timer ul or drx-retransmission timer dl.

12. The method of claim 11, wherein the first timer is drx-retransmission timer ul;

when the first information indicates that the drx-retransmission timer UL is not started, the drx-retransmission timer UL is not started when the drx-HARQ-RTT-timer UL corresponding to the transmission resource is overtime;

or,

when the first information indicates to start the drx-retransmission timer UL, starting the drx-retransmission timer UL when the drx-HARQ-RTT-timer UL corresponding to the transmission resource is timed out.

13. The method of claim 11, wherein the first timer is drx-retransmission timer dl;

When the first information indicates that the drx-retransmission TimerDL is not started, the drx-retransmission TimerDL is not started when the drx-HARQ-RTT-TimerDL is timed out;

or,

when the first information indicates that the drx-retransmission timer DL is started, the drx-retransmission timer DL is started when the drx-HARQ-RTT-timer DL is timed out.

14. The method according to any one of claims 1 to 13, wherein the first information is carried in a transmission resource configuration corresponding to the transmission resource; or, the first information is carried in downlink control information DCI for activating the transmission resource.

15. A method of communication, comprising:

and sending first information, wherein the first information indicates whether to start a first timer corresponding to the transmission resource, and the duration of the first timer is the minimum interval of retransmission scheduling or the maximum waiting duration of receiving retransmission scheduling.

16. The method of claim 15, wherein when the first information indicates that the first timer corresponding to the transmission resource is not started; the first timer corresponding to the transmission resource is not started after data transmission on the transmission resource.

17. The method of claim 15, wherein when the first information indicates that the first timer corresponding to the transmission resource is started; the first timer corresponding to the transmission resource is started after data transmission on the transmission resource.

18. The method of claim 15, wherein the first information indicates a threshold value, the threshold value corresponding to a preset condition, the first information being used to determine not to start the first timer after data transmission on the transmission resource when at least one of the preset conditions is met;

19. The method of claim 18, wherein the preset condition satisfies at least one of:

20. The method of claim 18, wherein the preset condition satisfies at least one of:

21. The method of claim 18, wherein the preset condition satisfies at least one of:

22. The method of claim 15, wherein the first information comprises a first sequence comprising at least one bit, each bit corresponding to at least one transmission resource, each bit indicating whether the corresponding at least one transmission resource starts the first timer after data transmission.

23. The method of claim 15, wherein the first information comprises a second sequence comprising at least one bit, each bit corresponding to at least one hybrid automatic repeat request, HARQ, process associated with a transmission resource configuration, each bit being used to indicate whether the first timer is started after data transmission by the at least one HARQ process on the associated transmission resource.

24. The method according to any of the claims 15 to 23, characterized in that the duration of the first timer is the minimum interval of retransmission scheduling, the first timer being drx-HARQ-RTT-timerl or drx-HARQ-RTT-TimerDL.

25. The method of claim 24, wherein the transmission resource is a physical layer uplink shared channel, PUSCH, resource, and the first timer is drx-HARQ-RTT-timer ul;

the first information is used for the terminal equipment not to start the drx-HARQ-RTT-TimerUL after sending uplink data on the PUSCH resource; or, the first information is used for starting the drx-HARQ-RTT-timer ul after the terminal device sends uplink data on the PUSCH resource.

26. The method of claim 24, wherein the transmission resource is a physical layer downlink shared channel, PDSCH, resource and the first timer is drx-HARQ-RTT-TimerDL;

the first information is used for enabling the terminal equipment not to start the drx-HARQ-RTT-TimerDL after the downlink data is received on the PDSCH resource; or, the first information is used for the terminal equipment to start the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource.

27. The method according to any one of claims 15 to 23, wherein the duration of the first timer is a maximum waiting duration for receiving a retransmission schedule, and the first timer is drx-retransmission timer ul or drx-retransmission timer dl.

28. The method of claim 27, wherein the first timer is drx-retransmission timer ul;

the first information is used for the terminal equipment not to start the drx-retransmission timer UL when the drx-HARQ-RTT-timer UL corresponding to the transmission resource is timed out; or the first information is used for starting the drx-retransmission timer UL when the drx-HARQ-RTT-timer UL corresponding to the transmission resource is timed out by the terminal equipment.

29. The method of claim 27, wherein the first timer is drx-retransmission timer dl;

the first information is used for enabling the terminal equipment not to start the drx-retransmission timertdl when the drx-HARQ-RTT-timertl is time-out; or the first information is used for starting the drx-retransmission TimerDL when the drx-HARQ-RTT-TimerDL times out by the terminal equipment.

30. The method according to any one of claims 15 to 29, wherein the first information is carried in a transmission resource configuration corresponding to the transmission resource; or, the first information is carried in downlink control information DCI for activating the transmission resource.

31. A communication device comprising a processor and a memory;

wherein the memory stores a computer program;

the processor invoking the computer program to cause the communication device to perform the method of any of claims 1-14; alternatively, a method according to any of claims 15 to 30 is performed.

32. A computer readable storage medium storing instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 14; alternatively, a method according to any of claims 15 to 30 is performed.