WO2024007882A1

WO2024007882A1 - Communication method and communication apparatus

Info

Publication number: WO2024007882A1
Application number: PCT/CN2023/102600
Authority: WO
Inventors: 范强
Original assignee: 华为技术有限公司
Priority date: 2022-07-08
Filing date: 2023-06-27
Publication date: 2024-01-11
Also published as: CN117412358A

Abstract

Provided in the present application are a communication method and a communication apparatus. In the method, a terminal device can receive first information, which is used by the terminal device to determine whether to start a first timer, and then on the basis of the first information, the terminal device makes a decision regarding whether to start the first timer corresponding to a transmission resource after data transmission is performed on the transmission resource, instead of necessarily starting the first timer after data transmission is completed on the transmission resource. Therefore, the method is conducive to flexibly controlling the terminal device to start the first timer at an appropriate occasion, so as to enter a discontinuous reception (DRX) active state. In addition, when the terminal device determines, on the basis of the first information, not to start the first timer, the terminal device may not enter the DRX active state. Therefore, the method is conducive to shortening the duration within which the terminal device is in the DRX active state, and reducing the power consumption of the terminal device.

Description

A communication method and communication device

This application claims priority to the Chinese patent application filed with the China Patent Office on July 8, 2022, with the application number 202210800216.0 and the invention title "A communication method and communication device", the entire content of which is incorporated into this application by reference. .

Technical field

The embodiments of the present application relate to the field of communication, and in particular, to a communication method and a communication device.

Background technique

In wireless communication systems, in order to ensure that data can be transmitted effectively and save the power consumption of terminal equipment, a discontinuous reception (DRX) mechanism is introduced to control the terminal equipment to monitor the physical downlink control channel (PDCCH) )the behavior of. Terminal equipment configured with DRX can enter the DRX activation state when it needs to monitor PDCCH or retransmission scheduling, and enter the DRX sleep state when it does not need to monitor PDCCH or retransmission scheduling, so that the terminal equipment can achieve 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 data transmission failure, the terminal device will start the discontinuous reception retransmission timer after the minimum retransmission scheduling interval configured on the network side. (drx-RetransmissionTimer) to enter the DRX activation state, so that the terminal device can receive the retransmission schedule for the aforementioned data in the DRX activation state.

However, in actual applications, not every new transmission will cause a transmission failure. Therefore, starting drx-RetransmissionTimer and entering the DRX activation state will cause unnecessary power consumption of the terminal device and reduce the energy-saving effect of the terminal device. Therefore, the current DRX mechanism requires further research.

Contents of the invention

The present application provides a communication method and communication device, which are used to shorten the time the terminal equipment is in the DRX activation state, which is beneficial to saving the power consumption of the terminal equipment.

In the first aspect, this application provides a communication method, which can be executed by a terminal device or by components of the terminal device (for example, components such as a processor, a chip, or a chip system). Taking the terminal device as an example, in this method, the terminal device can receive first information. The first information is used by the terminal device to determine whether to start a first timer. The duration of the first timer is the minimum interval of retransmission scheduling or The maximum waiting time for receiving retransmission schedule. Then, the terminal device determines whether to start the first timer based on the first information. When the terminal device determines not to start the first timer corresponding to the transmission resource based on the first information, 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 device determines not to start the first timer corresponding to the transmission resource based on When the first information determines to start the first timer corresponding to the transmission resource, the terminal device starts the first timer corresponding to the transmission resource after performing data transmission on the transmission resource.

In this application, because 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, it does not have to start the first timer after completing the data transmission on the transmission resource. , Therefore, it is beneficial to flexibly control the terminal equipment to start the first timer at an appropriate time and enter the DRX activation state. In addition, when the terminal device determines not to start the first timer based on the first information, the terminal device may not enter the DRX activation state. Therefore, it is beneficial to shorten the time the terminal device is in the DRX activation state and to save the power consumption of the terminal device.

In a possible implementation, the first information indicates a threshold, and the threshold corresponds to a preset condition. When the terminal device determines not to start the first timer corresponding to the transmission resource based on the first information, the terminal device does not start the first timer corresponding to the transmission resource after performing data transmission on the transmission resource, including: when When at least one preset condition is determined, the first timer is not started after data transmission on the transmission resource.

Optionally, the preset condition satisfies that the time interval between the start position or the end position of the transmission resource and the next time the terminal device enters the DRX activation state is less than or equal to a threshold.

In this example, since the terminal device can perform retransmission scheduling when it is in the DRX active state, if the end position of the transmission resource is shorter than the next time the terminal device enters the DRX active state, even if the terminal device is in the current transmission If the data transmitted on the resource fails to be transmitted, the terminal device will also have the opportunity to perform retransmission scheduling when it enters the DRX activation state next time.

Optionally, the preset condition satisfies the start position or end position of the transmission resource and the terminal device exits DRX within the current DRX cycle. The duration interval of the activation state is greater than or equal to the threshold.

In this example, since the terminal device is in the DRX activation state when transmitting data on this transmission resource, and the end position of the transmission resource is far from the end of the transmission resource when the terminal device exits the DRX activation state, it means that the terminal device will have DRX has been activated for a long time. Therefore, even if the data transmitted by the terminal device on the current transmission resource fails to be transmitted, the terminal device still has the opportunity to perform retransmission scheduling on the next transmission resource.

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

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

In this example, since the terminal device will start the discontinuous reception duration timer (drx-onDurationTimer) within a short period of time after the start time of the DRX cycle (for example, within one time slot after the start time of the DRX cycle), While drx-onDurationTimer is running, the terminal device is in the DRX activated state and can perform retransmission scheduling. Therefore, if the end position of the transmission resource is shorter than the start time of the next DRX cycle (for example, less than the first threshold), even if the terminal device fails to transmit the data transmitted on the current transmission resource, the terminal device still has The opportunity is to perform retransmission scheduling within the DRX activation time in the next DRX cycle. Further, if the first threshold is smaller than the PDB of the service transmitted by the transmission resource, while ensuring that the data that failed to be transmitted has the opportunity to be retransmitted, it can also ensure that the retransmitted data meets the PDB requirements without affecting the normality of the service. run.

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

In this example, since the terminal device will start drx-onDurationTimer within a short period of time after the start time of the DRX cycle (for example, within a time slot after the start time of the DRX cycle), the terminal device is in DRX is active and can perform retransmission scheduling. Therefore, if the end position of the transmission resource is shorter than the start time of the current DRX cycle (for example, less than the second threshold), the terminal device may be in the drx-onDurationTimer running period in the DRX cycle. At this time, even if the data transmitted by the terminal device on the current transmission resource fails to be transmitted, the terminal device still has the opportunity to perform retransmission scheduling on the next transmission resource.

In another possible implementation, the preset condition indicated by the threshold in the first information is a condition with the second timer as a reference. The second timer is a timer that enables the terminal device to be in a DRX activated state, that is, the terminal device is in a DRX activated state when the second timer is running. For example, the second timer may be drx-onDurationTimer, discontinuous reception activation timer (drx-InactivityTimer), uplink discontinuous reception retransmission timer (drx-RetransmissionTimerUL), downlink discontinuous reception retransmission timer (drx -RetransmissionTimerDL) and any of the sidelink discontinuous reception retransmission timer (drx-RetransmissionTimerSL).

In a possible example, the first information includes a third threshold, and the preset condition corresponding to the third threshold is: the length of time between the end position of the transmission resource and the start position of the second timer next run by the terminal device. The interval is less than or equal to the third threshold.

In this example, because the terminal device is in the DRX activated state during the running of the second timer, and the terminal device can perform retransmission scheduling when it is in the DRX activated state. Therefore, if the end position of the transmission resource is shorter than the start position of the next running second timer (for example, less than the third threshold), even if the data transmitted by the terminal device on the current transmission resource fails to be transmitted, The terminal device also has the opportunity to perform retransmission scheduling in the next period when the second timer runs.

In another possible example, the first information includes a fourth threshold, and the preset condition corresponding to the fourth threshold is: the length of time between the end position of the transmission resource and the end position of the second timer currently running on the terminal device. The interval is greater than or equal to the fourth threshold.

In this example, because the terminal device is in the DRX activated state during the running of the second timer, and the terminal device can perform retransmission scheduling when it is in the DRX activated state. Therefore, if the terminal device is currently in the running period of the second timer, and the time interval between the end position of the transmission resource and the end position of the currently running second timer is longer (for example, the time interval is greater than or equal to the fourth threshold), indicating that the second timer of the terminal device will still run for a period of time. At this time, even if the data transmitted by the terminal device on the current transmission resource fails to be transmitted, the terminal device will still have the opportunity to run the current second timer. Perform retransmission scheduling on another transmission resource within the period.

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

In this example, since the terminal device is in the DRX activated state during the running of the second timer, and the terminal device is in the DRX activated state, Retransmission scheduling can be performed when in the active state. Therefore, if the terminal device is currently in the running period of the second timer, and the time interval between the end position of the transmission resource and the start position of the currently running second timer is shorter (for example, the time interval is less than or equal to the Five thresholds), indicating that the terminal device has just started running the second timer, and the second timer may continue to run for a period of time. Therefore, even if the data transmitted by the terminal device on the current transmission resource fails to be transmitted, the terminal device still has the opportunity to perform retransmission scheduling on another transmission resource within the current period of the second timer running.

It should be noted that in practical applications, when the second timer adopts different implementations, the third threshold may be different for different second timers, and the fourth threshold may also be different for different second timers. The second timer fifth threshold may also be different.

In another possible implementation, the preset condition indicated by the threshold in the first information is a condition related to DRX activation time (or DRX activation state). Among them, during the operation of any timer in drx-onDurationTimer, drx-InactivityTimer, and drx-RetransmissionTimer (for example, drx-RetransmissionTimerUL, drx-RetransmissionTimerDL, and drx-RetransmissionTimerSL), the terminal device is in the DRX activation state, and the terminal device is in the DRX activation state. The length of time in the DRX activation state is called the DRX activation time.

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

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

It should be noted that the "end position of the transmission resource" in any of the aforementioned preset conditions can be replaced by "the starting position of the transmission resource", and the value of the threshold corresponding to each preset condition will also change.

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

Optionally, the first information includes a first sequence, the first sequence includes at least one bit, each bit corresponds to at least one transmission resource, and each bit is used to indicate that the corresponding at least one transmission resource is performing data transmission. Whether to start the first timer later. 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, thereby reducing the signaling overhead of carrying the first information.

Optionally, the first information includes a second sequence, the second sequence includes at least one bit, each bit corresponds to at least one HARQ process associated with the transmission resource configuration, and each bit is used to indicate at least one HARQ process in Whether to start the first timer after data transmission on the associated transmission resource. In this example, the position of each bit in the bit sequence implicitly indicates which HARQ process each bit corresponds to, which is beneficial to controlling the size of the first information, thereby reducing the signaling overhead of carrying the first information.

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

For example, during the uplink transmission process, the transmission resource is a physical layer uplink shared channel (PUSCH) resource, and the first timer is drx-HARQ-RTT-TimerUL.

When the first information indicates not to start the drx-HARQ-RTT-TimerUL, the terminal device does not start the drx-HARQ-RTT-TimerUL after sending uplink data on the PUSCH resource; or when the first information indicates to start the drx-HARQ-RTT-TimerUL When drx-HARQ-RTT-TimerUL is used, the terminal device starts the drx-HARQ-RTT-TimerUL after sending uplink data on the PUSCH resource.

For example, during downlink transmission, the transmission resource is a physical downlink shared channel (PDSCH) resource, and the first timer is drx-HARQ-RTT-TimerDL.

When the first information indicates not to start the drx-HARQ-RTT-TimerDL, 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 When the drx-HARQ-RTT-TimerDL is used, the terminal equipment starts the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource.

In another possible implementation, the duration of the first timer is the maximum waiting duration for receiving the retransmission schedule, and the first timer is drx-RetransmissionTimerUL or drx-RetransmissionTimerDL.

For example, during uplink transmission, the first timer is drx-RetransmissionTimerUL.

When the first information indicates not to start the drx-RetransmissionTimerUL, do not start the drx-RetransmissionTimerUL when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out; or, when the first information indicates to start the drx-RetransmissionTimerUL, Start drx-RetransmissionTimerUL when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out.

For example, during downlink transmission, the first timer is drx-RetransmissionTimerDL;

When the first information indicates not to start the drx-RetransmissionTimerDL, drx-RetransmissionTimerDL is not started when drx-HARQ-RTT-TimerDL times out; or, when the first information indicates to start the drx-RetransmissionTimerDL, when drx-HARQ- Start drx-RetransmissionTimerDL when RTT-TimerDL times out.

In a possible implementation, the first information is carried in a transmission resource configuration corresponding to the transmission resource; or, the first information is carried in activation downlink control information (DCI) used to activate the transmission resource. )middle.

In the second aspect, this application provides a communication method, which can be executed by an access network device or by a component of the access network device (for example, a processor, a chip or a chip system, etc.). Taking the access network device as an example, in this method, the access network device sends first information to the terminal device. The first information is used to indicate whether to start the first timer corresponding to the transmission resource. The duration of the first timer The minimum interval for scheduled retransmissions or the maximum waiting time for receiving retransmissions scheduled.

In this application, since the access network device can send the first information to the terminal device for determining whether to start the first timer corresponding to the transmission resource, the terminal device can decide whether to perform data transmission on the transmission resource based on the first information. Start the first timer corresponding to the transmission resource, instead of starting the first timer after completing the data transmission on the transmission resource. Therefore, it is beneficial to flexibly control the terminal equipment to start the first timer at an appropriate time and enter the DRX activation state. In addition, when the first information indicates not to start the first timer, the terminal device does not need to enter the DRX activation state after receiving the first information. Therefore, it is beneficial to shorten the time the terminal device is in the DRX activation state and save the power of the terminal device. Consumption.

In a possible implementation, when the first information indicates not to start the first timer corresponding to the transmission resource; the first timer corresponding to the transmission resource is not activated after data transmission on the transmission resource. start up.

In a possible implementation, when the first information indicates starting 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, the first information indicates a threshold, the threshold corresponds to a preset condition, and the first information is used to determine whether to perform data transmission on the transmission resource when at least one of the preset conditions is met. Start the first timer; wherein the preset condition satisfies that the time interval between the start position or the end position of the transmission resource and the next time the terminal device enters the discontinuous reception DRX activation state is less than or equal to the threshold, and/or the preset timer Assume that the condition is met that the time interval between the start position or the end position of the transmission resource and the time the terminal device exits the DRX activation state in the current DRX cycle is greater than or equal to the threshold.

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

The time interval between the start position/end position of the transmission resource and the start time of the next DRX cycle is less than or equal to the first threshold; or, the time interval between the start position/end position of the transmission resource and the start time of the current DRX cycle is The duration interval is less than or equal to the second threshold.

The time interval between the start position/end position of the transmission resource and the start position of the second timer next run by the terminal device is less than or equal to the third threshold; or, the start position/end position of the transmission resource is far from the start position of the second timer next run by the terminal device. The time interval between the end position of the second timer currently running on the terminal device is greater than or equal to the fourth threshold; or, the start position/end position of the transmission resource is distanced from the start position/end position of the second timer currently running on the terminal device. The time interval of the location is less than or equal to the fifth threshold; wherein the terminal device is in the DRX activation state when the second timer is running.

The time interval between the start position/end position of the transmission resource and the start moment of the next DRX activation time is less than or equal to the sixth threshold; or, the start position/end position of the transmission resource is within the DRX activation time and is far away from the current DRX The time interval between the end time of the activation time is greater than or equal to the seventh threshold; or, the start position/end position of the transmission resource is in the DRX activation time and the time interval from the start time of the current DRX activation time is less than or equal to the eighth threshold .

In a possible implementation, the first information includes a first sequence, the first sequence includes at least one bit, each bit corresponds to at least one transmission resource, and each bit is used to indicate the corresponding at least one transmission. Whether the resource starts the first timer after data transmission.

In a possible implementation, the first information includes a second sequence, the second sequence includes at least one bit, each of the bits corresponds to at least one HARQ process associated with the transmission resource configuration, and each of the bits is used to indicate Whether to start the first timer after at least one HARQ process performs data transmission on the associated transmission resource.

In a possible implementation, the transmission resource is a physical layer uplink shared channel PUSCH resource, and the first timer is drx-HARQ-RTT-TimerUL; the first information is used by the terminal device to send on the PUSCH resource. The drx-HARQ-RTT-TimerUL is not started after uplink data; or, the first information is used for the terminal equipment to start the drx-HARQ-RTT-TimerUL after sending uplink data on the PUSCH resource.

In a 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 by the terminal device to receive on the PDSCH resource. The drx-HARQ-RTT-TimerDL is not started after downlink data; 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 a possible implementation, the duration of the first timer is the maximum waiting duration for receiving the retransmission schedule, and the first timer is drx-RetransmissionTimerUL or drx-RetransmissionTimerDL.

In a possible implementation, the first timer is drx-RetransmissionTimerUL; the first information is used by the terminal device not to start drx-RetransmissionTimerUL when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out; or , the first information is used by the terminal device to start drx-RetransmissionTimerUL when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out.

In a possible implementation, the first timer is drx-RetransmissionTimerDL; the first information is used for the terminal device not to start drx-RetransmissionTimerDL when drx-HARQ-RTT-TimerDL times out; or, the first information Used for the terminal device to start drx-RetransmissionTimerDL when drx-HARQ-RTT-TimerDL times out.

In a possible implementation, the first information is carried in a transmission resource configuration corresponding to the transmission resource; or, the first information is carried in activation downlink control information DCI used to activate the transmission resource.

It should be noted that the specific implementation manners and beneficial effects of this aspect are similar to some of the foregoing implementation methods of the first aspect. For details, please refer to the specific implementation manners and beneficial effects of the first aspect, and will not be described again here.

In a third aspect, the present application provides a communication device, which may be a terminal device or a component of the terminal device (for example, a processor, a chip or a chip system, etc.). The communication device includes: a transceiver module and a processing module.

Wherein, the transceiver module is used to receive the first information. A processing module configured to determine whether to start the first timer based on the first information. The processing module is also configured to not start the first timer corresponding to the transmission resource after performing data transmission on the transmission resource when it is determined not to start the first timer corresponding to the transmission resource based on the first information; or, When it is determined to start the first timer corresponding to the transmission resource based on the first information, the first timer corresponding to the transmission resource is started after data transmission is performed on the transmission resource. The duration of the first timer is the minimum interval of the retransmission schedule or the maximum waiting time for receiving the retransmission schedule.

In the fourth aspect, the present application provides a communication device, which may be an access network device or a component of the access network device (for example, a processor, a chip or a chip system, etc.). The communication device includes: a transceiver module and a processing module.

Wherein, the processing module is used to generate first information. The first information is used by the terminal device to determine whether to start a first timer corresponding to the transmission resource. The duration of the first timer is the minimum interval of retransmission scheduling or receiving retransmission. The maximum waiting time for scheduling; the transceiver module is used to send the first information.

It should be noted that the specific implementation manners and beneficial effects of this aspect are similar to some of the foregoing implementation methods of the second aspect. For details, please refer to the specific implementation manners and beneficial effects of the second aspect, and will not be described again here.

In the fifth aspect, embodiments of the present application provide a communication device. The communication device may be the terminal device in the aforementioned 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 can be a processor, and the transceiver module can be a transceiver; the terminal device can also include a storage module, and the storage module can be a memory; the storage module is used to store instructions, and the processing module executes what is stored in the storage module. instructions, so that the terminal device performs the method in the first aspect or any implementation of the first aspect; or, performs the method in the first aspect or any implementation of the first aspect. When the communication device is within the terminal equipment When a chip is used, the processing module may be a processor, and the transceiver module may be an input/output interface, a pin or a circuit, etc.; the processing module executes the instructions stored in the storage module, so that the terminal device executes the first aspect or any one of the first aspects. The method in one embodiment; or, perform the method in the first aspect or any embodiment of the first aspect. The storage module may be a storage module within the chip (eg, register, cache, etc.), or may be a storage module located outside the chip in the terminal device (eg, read-only memory, random access memory, etc.).

In the sixth aspect, embodiments of the present application provide a communication device. The communication device may be the access network device in the aforementioned 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 can be a processor, and the transceiver module can be a transceiver; the access network device can also include a storage module, and the storage module can be a memory; the storage module is used to store instructions, and the processing module executes The instructions stored in the storage module are used to cause the access network device to execute the method in the second aspect or any implementation manner of the second aspect. When the communication device is a chip in the access network equipment, the processing module can be a processor, and the transceiver module can be an input/output interface, a pin or a circuit, etc.; the processing module executes the instructions stored in the storage module, so that the access network The device performs the method in the second aspect or any implementation manner of the second aspect. The storage module may be a storage module within the chip (eg, register, cache, etc.), or it may be a storage module located outside the chip in the access network device (eg, read-only memory, random access memory, etc.).

In a seventh aspect, the present application provides a communication device, which may be an integrated circuit chip. Integrated circuit chips include processors. The processor is coupled to a memory, and the memory is used to store programs or instructions. When the programs or instructions are executed by the processor, the communication device performs the method described in any one of the embodiments of the foregoing aspects.

In an eighth aspect, embodiments of the present application provide a computer program product containing instructions that, when run on a computer, cause the computer to execute the method described in any one of the embodiments of the foregoing aspects.

In a ninth aspect, embodiments of the present application provide a computer-readable storage medium, which includes instructions. When the instructions are run on a computer, the computer executes the method described in any of the embodiments of the previous aspects.

In a tenth aspect, embodiments of the present application provide a communication system. The communication system includes a terminal device that performs the foregoing first aspect and any one of the embodiments of the first aspect, and a terminal device that performs the foregoing second aspect and the second aspect. Access network equipment in any embodiment.

Description of the drawings

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

Figure 1A is an example diagram of the DRX cycle;

Figure 1B is an example diagram of a timer involved in downlink transmission;

Figure 1C is another example diagram of a timer involved in downlink transmission;

Figure 1D is an example diagram of a timer involved in uplink transmission;

Figure 1E is an example diagram of the DRX state of a terminal device in traditional technology;

Figure 2 is a flow chart of the communication method in this application;

Figure 3A is a flow chart of the communication method in this application;

Figure 3B is another flow chart of the communication method in this application;

Figure 4A is an example diagram of the DRX state of the terminal device under the action of the first information;

Figure 4B is another example diagram of the DRX state of the terminal device under the action of the first information;

Figure 4C is another example diagram of the DRX state of the terminal device under the action of the first information;

Figure 4D is another example diagram of the DRX state of the terminal device under the action of the first information;

Figure 5A is a flow chart of the communication method in this application;

Figure 5B is another flow chart of the communication method in this application;

Figure 6A is an example diagram of the preset conditions in this application;

Figure 6B is another example diagram of the preset conditions in this application;

Figure 6C is another example diagram of the preset conditions in this application;

Figure 7 is a schematic diagram of an embodiment of the communication device in this application;

Figure 8 is a schematic diagram of another embodiment of the communication device in this application;

Figure 9 is a schematic diagram of another embodiment of the communication device in this application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments.

The terms "first", "second", "third", "fourth", etc. (if present) in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects without necessarily using Used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments described herein can be practiced in other sequences than illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus that encompasses a series of steps or units and need not be limited to those explicitly listed. Those steps or elements may instead include other steps or elements not expressly listed or inherent to the process, method, product or apparatus.

It should be understood that the term "and/or" in this article is only an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and A and B exist simultaneously. , there are three situations of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

For ease of understanding, the system architecture and application scenarios of the communication method proposed in this application are first introduced below:

The communication method proposed in this application can be applied to the fifth generation mobile networks (5th generation mobile networks, 5G) new radio (NR) system, the sixth generation mobile communication technology (the 6th generation mobile communication technology, 6G) system and subsequent evolved formats, this application does not limit this. Communication systems include terminal equipment and network equipment. The network equipment may include access network equipment or core network equipment.

Among them, terminal equipment includes equipment that provides voice and/or data connectivity to users. For example, this may include a handheld device with wireless connectivity or a processing device connected to a wireless modem. The terminal device can communicate with the core network (for example, 5G core network (5th generationcore, 5GC)) via the radio access network (RAN), and can exchange voice and/or data with the RAN. Terminal equipment can also be called terminal (Terminal), user equipment (UE), wireless terminal equipment, mobile terminal (MT) equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile Station (mobile station, MS), mobile station (mobile), remote station (remote station), access point (access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal Device (user terminal), user agent (user agent), or user device (user device), etc. In addition, the terminal device can be a mobile phone (mobile phone), tablet computer (Pad), computer with wireless transceiver function, virtual reality (VR) device, augmented reality (AR) device, extended reality (extended reality) , XR) business terminal, cloud gaming (CG) business terminal, wireless terminal in industrial control (industrial control), wireless terminal in self-driving (self-driving), remote medical surgery (remote medical surgery) Wireless terminals, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc. It should be understood that all or part of the functions of the terminal device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform). The embodiments of this application do not limit the specific technology and specific equipment form used by the terminal equipment. The terminal device in this application can be any of the above-mentioned devices or chips, and there is no specific limitation here. Whether as equipment or as chips, terminal equipment can be manufactured, sold or used as independent products. In this embodiment and subsequent embodiments, a terminal device is taken as an example for introduction.

The access network device can be any device with wireless transceiver functions and can be used to be responsible for air interface-related functions, such as wireless link maintenance functions, wireless resource management functions, and some mobility management functions. In addition, the access network equipment can also be configured with a base band unit (BBU), which has baseband signal processing functions. For example, the access network device may be an access network device (radio access network, RAN) that currently provides services to the terminal device. Currently, some common examples of access network equipment are: Node B (Node B, NB), evolved Node B (evolved Node B, eNB), and next-generation Node B (Node B) in 5G new radio (new radio, NR) systems. next generation node B, gNB), nodes in the 6G system (for example, xNodeB), transmission reception point (TRP), radio network controller (RNC), base station controller, BSC), base transceiver station (BTS), home base station (for example, home evolved node (home evolved NodeB) or home node (home Node B, HNB)), etc. In addition, in network structures such as cloud radio access network (CloudRAN) or open radio access network (ORAN), the access network equipment may include a centralized unit (CU) (also called control unit) and/or distributed unit (DU) Prepare. Among them, the RAN equipment including CU and DU separates the protocol layer of gNB in the NR system. Some protocol layer functions are centralized controlled by the CU, and the remaining part or all protocol layer functions are distributed in the DU and centrally controlled by the CU. DU. It should be understood that all or part of the functions of the access network equipment in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform). The access network device in the embodiment of the present application may be any of the above devices or a chip in the above device, and is not specifically limited here. Whether as equipment or chips, access network equipment can be manufactured, sold or used as independent products. In this embodiment and subsequent embodiments, access network equipment is taken as an example for introduction.

Core network equipment refers to equipment in the core network (CN) that provides business support for terminal equipment. Currently, some common examples of core network equipment are: access and mobility management function (AMF) entities, session management function (SMF) entities, user plane function (UPF) entities ) entities, etc., which are not listed here. Among them, the AMF entity can be responsible for the access management and mobility management of the terminal device; the SMF entity can be responsible for session management, such as user session establishment, etc.; the UPF entity can be a functional entity of the user plane, mainly responsible for connecting to external networks. It should be noted that the entities in this application may also be called network elements or functional entities. For example, the AMF entity may also be called an AMF network element or an AMF functional entity; and for example, the SMF entity may also be called an SMF network element or an SMF functional entity.

It should be noted that the communication method proposed in this application is applicable to communication between terminal equipment and access network equipment, and is also applicable to communication between terminal equipment and terminal equipment. For example, in a sidelink communication scenario (ie, sidelink scenario), two terminal devices that communicate using the PC5 interface can perform the communication method proposed in this application.

Specifically, the communication method proposed in this application can be applied to the DRX mechanism (for example, the DRX mechanism (connected DRX, CDRX) in the connected state). In the DRX mechanism, the terminal device only turns on the receiver to enter the DRX active state when necessary to monitor the PDCCH, and turns off the receiver to enter the DRX sleep state at other times, thereby saving energy consumption of the terminal equipment. In the DRX mechanism, terminal equipment may involve the following timers:

Continuous timer for discontinuous reception (drx-onDurationTimer): a continuous downlink duration, indicating the length of time the terminal device maintains the wake-up state after waking up in a DRX cycle (DRX cycle). The terminal device can monitor during the operation of drx-onDurationTimer PDCCH.

Discontinuous reception activation timer (drx-InactivityTimer): a continuous downlink duration, indicating that the terminal device successfully decodes a PDCCH indicating the initial transmission of uplink or downlink data during the DRX activation time (for example, during drx-onDurationTimer operation) The length of time that PDCCH can be continuously monitored. drx-InactivityTimer is started or restarted when the terminal device receives a PDCCH indicating new transmission (indicating uplink or downlink new transmission scheduling).

For ease of understanding, the aforementioned drx-onDurationTimer and drx-InactivityTimer are introduced in conjunction with the DRX cycle shown in Figure 1A. As shown in Figure 1A, a DRX cycle mainly includes a duration period (i.e. On-duration) and a sleep period (i.e. Opportunity for DRX). The duration period is the duration period during which the terminal device is in the DRX active state and can monitor the PDCCH; the sleep period is the period during which the terminal device enters the DRX sleep state without monitoring the PDCCH in order to save power. For example, when the terminal device starts drx-onDurationTimer, the terminal device enters the DRX activation state and starts monitoring the PDCCH. If the terminal device does not receive PDCCH while drx-onDurationTimer is running, the terminal device can enter the DRX sleep state and no longer listen to PDCCH when drx-onDurationTimer times out; if the terminal device receives the instruction new If the PDCCH is transmitted, the terminal device starts or restarts the drx-InactivityTimer and continues to monitor the PDCCH. It should be noted that if the terminal device receives a message indicating entering the sleep state (for example, DRX command MAC CE) while drx-onDurationTimer or drx-InactivityTimer is running, the terminal device will immediately stop drx-onDurationTimer and drx-InactivityTimer, and may Enter DRX sleep state.

Discontinuous reception hybrid automatic repeat request round-trip delay timer (drx-HARQ-RTT-Timer): used to indicate the minimum interval at which the terminal device expects to receive retransmission schedules, which can reflect the network side's processing of data or information from the terminal device. The minimum duration of the command indicates the earliest number of symbols (symbols) before the next HARQ retransmission occurs. The terminal device will not listen to the PDCCH while drx-HARQ-RTT-Timer is running. drx-HARQ-RTT-Timer can be divided into timers that indicate the minimum interval at which uplink terminal equipment expects to receive retransmission schedules (i.e., uplink discontinuous reception hybrid automatic repeat request round-trip delay timer (drx-HARQ-RTT- TimerUL)) and a timer indicating the minimum interval at which the downlink terminal equipment expects to receive retransmission schedules (ie, downlink discontinuous reception hybrid automatic repeat request round-trip delay timer (drx-HARQ-RTT-TimerDL)).

Generally, drx-HARQ-RTT-TimerDL is started at the first symbol after the end of the HARQ feedback for downlink transmission of a HARQ process, indicating how long the terminal device needs to wait after sending HARQ feedback to the network side. Monitor for instructions PDCCH scheduled for retransmission. For example, in the example shown in Figure 1B, the terminal device receives downlink data through the PDSCH, and after receiving the downlink data on the PDSCH, the terminal device sends HARQ feedback to the network side. The terminal device starts drx-HARQ-RTT after sending the HARQ feedback. -TimerDL. Optional, in some scenarios, drx-HARQ-RTT-TimerDL is started at the first symbol after the downlink transmission of a HARQ process, indicating how long the terminal device needs to wait after receiving downlink data from the network side. Only then can the PDCCH used to indicate downlink retransmission scheduling be monitored. For example, in the example shown in Figure 1C, the terminal device starts drx-HARQ-RTT-TimerDL after receiving downlink data through PDSCH.

In addition, drx-HARQ-RTT-TimerUL is started at the first symbol after the uplink transmission of a HARQ process, indicating how long the terminal device needs to wait before it can listen for instructions after sending uplink data to the network side. Uplink retransmission scheduled PDCCH. For example, in the example shown in Figure 1D, the terminal device sends uplink data on PUSCH, and the terminal device starts drx-HARQ-RTT-TimerUL after sending the uplink data.

Discontinuous reception retransmission timer (drx-RetransmissionTimer): used to indicate the maximum waiting time for receiving retransmission scheduling, indicating the maximum time for the terminal device to wait for retransmission scheduling in the DRX activation state. drx-RetransmissionTimer can be divided into a timer that indicates the maximum waiting time for receiving uplink retransmission scheduling (i.e., uplink discontinuous reception retransmission timer (drx-RetransmissionTimerUL)) and a timer that indicates the maximum waiting time for receiving downlink retransmission scheduling (i.e., uplink non-continuous reception retransmission timer (drx-RetransmissionTimerUL)). That is, the downlink discontinuous reception retransmission timer (drx-RetransmissionTimerDL)). Optionally, in sidelink communication, drx-RetransmissionTimer may be a sidelink discontinuous reception retransmission timer (drx-RetransmissionTimerSL).

Generally, as shown in Figure 1B or Figure 1C, if the drx-RetransmissionTimerDL does not successfully decode the downlink transport block (TB) after the drx-HARQ-RTT-TimerDL of a HARQ process times out, the terminal device will -RTT-TimerDL starts at the first symbol after timeout. As shown in Figure 1D, drx-RetransmissionTimerUL is started at the first symbol after the drx-HARQ-RTT-TimerUL timeout of a HARQ process.

As shown in Figure 1D, during the operation of any timer among drx-onDurationTimer, drx-InactivityTimer, drx-RetransmissionTimerDL, and drx-RetransmissionTimerUL, the terminal device is in the DRX activation state and can monitor the PDCCH.

It should be understood that the DRX activation state involved in the introduction of the aforementioned timers only refers to the state of the DRX function, not the radio resource control (radio resource control, RRC) activation state. The RRC activation state is the RRC CONNECTED state. When the terminal device is in the RRC connected state, it can receive dedicated RRC signaling from the network side to configure the terminal device, and the terminal device can transmit RRC dedicated signaling and service data with the network side. The RRC states corresponding to the RRC active state include RRC dormant state (RRC IDLE state) (also known as RRC idle state) and RRC inactive state (RRC INACTIVE state). Generally, when the terminal device is in the RRC sleep state or the RRC inactive state, the terminal device cannot receive the dedicated configuration signaling of the network. The DRX function is an energy-saving function configured on the network side for the terminal device when the terminal device is in the RRC connection state. When the terminal device is configured with the DRX function, the terminal device can be in the DRX active state or the DRX sleep state. Among them, when the terminal device is in the DRX active state, the terminal device can monitor the PDCCH at the PDCCH monitoring opportunity to determine whether an access network device sends scheduling information to the terminal device; when the terminal device is in the DRX sleep state, the terminal device can not PDCCH monitors to achieve the purpose of energy saving. During the operation of each of the aforementioned DRX timers, the terminal device is in the RRC connected state.

As shown in Figure 1E, in the current DRX mechanism, every time the terminal device transmits on the uplink transmission resource configured on the network side, the terminal device will start drx-HARQ-RTT-TimerUL. The drx-HARQ-RTT-TimerUL After timeout, the terminal device will start drx-RetransmissionTimerUL and be in the DRX activation state in order to expect to hear the PDCCH indicated by the access network device for retransmission scheduling. However, in actual applications, not every transmission will fail. Therefore, starting drx-RetransmissionTimerUL while being in the DRX activated state may cause unnecessary power consumption to the terminal device and affect the energy-saving effect of the terminal device.

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

The main process of an embodiment of the communication method proposed in this application will be introduced below with reference to Figure 2. This embodiment may be executed by a terminal device, or may be executed by a component of the terminal device (for example, a processor, a chip, a chip system, etc.). Taking the terminal device as an example, in this method, the terminal device will perform the following steps:

Step 201: The terminal device receives the first information.

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

The transmission resources are physical resources configured by the network side to the terminal device for the terminal device to transmit data. For example, the access network device configures the transmission resources for the terminal device through the transmission resource configuration. The first information in this application is related to the transmission resources configured by the transmission resource configuration.

Transmission resources can be divided into pre-configured resources (pre-configured resources) and dynamic grant (DG) resources according to the network side configuration method. Among them, preconfigured resources are divided into configured grant (CG) resources for uplink transmission and semi-persistent scheduling (SPS) resources for downlink transmission according to different transmission directions. Optionally, the CG resource can be a configured grant type 1 (CG type 1) resource or a configured grant type 2 (CG type 2) resource.

In addition, transmission resources are divided into uplink transmission resources (for example, physical uplink shared channel (PUSCH) resources) and downlink transmission resources (for example, physical downlink shared channel (PDSCH) resources) according to the data transmission direction. ). For example, if the transmission resources configured on the network side are PUSCH resources, the terminal device can send uplink data on the PUSCH resources. For example, if the transmission resources configured on the network side are PDSCH resources, the terminal device can receive downlink data on the PDSCH resources.

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

In a possible implementation, the transmission resources are preconfigured resources. For example, CG assets or SPS assets. In this case, the first information may be information at the terminal device granularity, information at the cell granularity, or information at the BWP granularity.

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

For example, the first information is cell granular information. For example, the first information is carried in the serving cell configuration information element ServingCellConfig. At this time, different serving cell configurations may carry independent first information, and the first information carried in a certain serving cell is only valid for preconfigured resources in the same cell.

For example, the first information is information at a bandwidth part (BWP) granularity. For example, the first information is carried in the BWP configuration information element BWP-UplinkDedicated or BWP-DownlinkDedicated. At this time, different BWP configurations may carry mutually independent first information, and the first information carried in a certain BWP is only valid for the preconfigured resources in the BWP.

For example, the first information is information of preconfigured resource configuration granularity. The first information may be carried in CG resource configuration or SPS resource configuration. For example, the first information is carried in the configuredGrantConfig configuration information element of the CG. For another example, the first information is carried in the configuration information element SPS-Config of the SPS. In addition, the first information may also be carried in the activated downlink control information (DCI) corresponding to the CG resource configuration or the activated DCI corresponding to the SPS resource configuration. For example, the first information is carried in the activation DCI used to activate the configuration grant type 2 resource. For another example, the first information is carried in activation DCI used to activate SPS resources.

In another possible implementation, the transmission resources are dynamically authorized DG resources. In this case, the first information may be information at the terminal device granularity, information at the cell granularity, or information at the BWP granularity.

For example, the first information is BWP granularity information. For example, the first information is carried in the BWP configuration information element BWP-UplinkDedicated or BWP-DownlinkDedicated. At this time, different BWP configurations may carry mutually independent first information, and the first information carried in a certain BWP is only valid for the preconfigured resources in the BWP.

It should be noted that in actual applications, the access network device can use the first information of any of the aforementioned configuration granularities. Correspondingly, the terminal device can obtain the first information from the cells or signaling corresponding to the configuration granularity. This application does not limit this.

In addition, the first timer is used to indicate the minimum interval at which the terminal device expects to receive the retransmission schedule or the maximum waiting time for receiving the retransmission schedule.

In a possible implementation, the first timer is used to indicate the minimum interval at which the terminal device expects to receive the retransmission schedule, that is, the duration of the first timer is the minimum interval at which the terminal device expects to receive the retransmission schedule. For example, the first timer is drx-HARQ-RTT- TimerUL or drx-HARQ-RTT-TimerDL. For an introduction to drx-HARQ-RTT-TimerUL or drx-HARQ-RTT-TimerDL, please refer to the corresponding descriptions in Figure 1B, Figure 1C or Figure 1D, and will not be described again here.

In another possible implementation, the first timer is used to indicate the maximum waiting time for receiving the retransmission schedule, that is, the length of the first timer is the maximum waiting time for the terminal device to receive the retransmission schedule. For example, the first timer is drx-RetransmissionTimerUL or drx-RetransmissionTimerDL. For an introduction to drx-RetransmissionTimerUL or drx-RetransmissionTimerDL, please refer to the corresponding description in Figure 1B, Figure 1C or Figure 1D, and will not be described again here.

Specifically, the first information may be implemented in the following multiple ways:

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

For example, the preset condition is used to indicate that the time interval between the start position or the end position of the transmission resource and the next time the terminal device enters the DRX activation state is less than or equal to the first preset value. In this example, the first information at least includes the aforementioned first preset value. Optionally, the first preset value is less than the packet delay budget (packet delay budget, PDB) of the service transmitted by the transmission resource.

Among them, 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 the transmission resource refers to the starting time of the transmission resource. The end time in the time domain, for example, the end time of the last symbol of the transmission resource or the last time slot, etc.

In this example, since the terminal device can perform retransmission scheduling when it is in the DRX activated state, if the end position of the transmission resource is shorter than the next time the terminal device enters the DRX activated state (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 will have the opportunity to perform retransmission scheduling when it enters the DRX activation state next time. Furthermore, if the first preset value is smaller than the PDB of the service transmitted by the transmission resource, while ensuring that the data that failed to be transmitted has the opportunity to be retransmitted, it can also ensure that the retransmitted data meets the PDB requirements without affecting the service. of normal operation.

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

In this example, because the terminal device is in the DRX activation state when the terminal device performs data transmission on the transmission resource, and the end position of the transmission resource is separated from the end position of the terminal device by a long time interval from the DRX activation state (for example, the time interval is greater than or equal to the second preset value), indicating that the terminal device will remain in the DRX activation state for a long time. Therefore, even if the data transmitted by the terminal device on the current transmission resource fails to be transmitted, the terminal device still has the opportunity to perform retransmission scheduling on the next transmission resource.

For example, the preset condition is used to indicate that the start position or end position of the transmission resource is less than or equal to the third preset value from the time interval between the terminal device entering the DRX activation state in the current DRX cycle. In this example, the first information at least includes the aforementioned third preset value.

In this example, because the terminal device is in the DRX activation state when the terminal device performs data transmission on the transmission resource, and the end position of the transmission resource is shorter than the time interval when the terminal device just enters the DRX activation state (for example, the time interval less than or equal to the third preset value), it indicates that the terminal equipment has just entered the DRX activation state and the terminal equipment will be in the DRX activation state for a period of time. Therefore, even if the data transmitted by the terminal device on the current transmission resource fails to be transmitted, the terminal device still has the opportunity to perform retransmission scheduling on the next transmission resource.

For specific examples of the preset conditions, please refer to the embodiment corresponding to FIG. 5A or FIG. 5B below, which will not be described again here.

In another possible implementation, the first information serves as an indication, and the first information is used to indicate whether each of the at least one transmission resource should start the first timer after data transmission.

Optionally, the first information may include at least one character. Each character corresponds to at least one transmission resource and is used to instruct the terminal device whether to start the first timer corresponding to the transmission resource after data transmission on the transmission resource; or each character corresponds to at least one HARQ process and is used to instruct the terminal Whether the device starts the first timer corresponding to the HARQ process after transmitting data on the transmission resource associated with the HARQ process.

For example, 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, the first sequence includes at least one bit, each bit corresponds to at least one transmission resource, and each bit is used to indicate whether the corresponding at least one transmission resource is started after data transmission. the first timer. For another example, the first information includes a second sequence, the second sequence includes at least one bit, each of the bits is associated with a transmission resource allocation. Corresponding to at least one associated HARQ, each bit is used to indicate whether to start the first timer after at least one HARQ performs 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, thereby reducing the signaling overhead of carrying the first information.

For example, the first information may also be a list, and the list includes at least one character. Optionally, the list also includes a character index. The character index is used by the terminal device to determine which transmission resources or which HARQ processes the character corresponds to. In this example, the first information for indicating the effect is carried in the form of a list, which is helpful for accurately instructing the terminal device which transmission resources or which HARQ processes correspond to the first timers that need to be started or not started.

Optionally, the time interval between every two adjacent first resources in the time domain is less than or equal to the packet delay budget PDB of the 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. In this implementation manner, even if the terminal device fails to transmit on a certain transmission resource, the terminal device can schedule retransmission during the period when other timers or events trigger the terminal device to enter the DRX activation state. Not only can it ensure that data that fails to be transmitted will have the opportunity to be retransmitted, but it can also meet PDB requirements.

In addition, it should be noted that each character may have any one of two values, one of which represents starting the first timer, and the other representing not starting the first timer. For example, if the value of the character is 0, it means not starting the first timer; if the value of the character is 1, it means starting the first timer. For another example, if the value of the character is false (false), it means not starting the first timer; if the value of the character is true (true), it means starting the first timer.

For specific examples of the indication function of the first information, please refer to the embodiment corresponding to FIG. 3A or FIG. 3B below, which will not be described again here.

In practical applications, the first information can be implemented using any of the aforementioned implementation methods, and the details are not limited here.

Step 202: The terminal device determines whether to start the first timer corresponding to the transmission resource based on the first information.

Specifically, when the first information is implemented in different ways, the process of the terminal device determining whether to start the first timer based on the first information is also different. The following are introduced respectively:

In a possible implementation, the first information is used to indicate at least one preset condition, and the first information includes a threshold corresponding to each preset condition in the at least one preset condition. The terminal device determines, based on one or several preset conditions indicated by the first information, whether the time at which the current terminal device performs data transmission can meet the aforementioned preset conditions, and then the terminal device determines whether the preset conditions are satisfied based on whether the preset conditions are met. Start the first timer.

For example, when at least one preset condition is met, the terminal device determines not to start the first timer 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 the time interval between the start position or the end position of the transmission resource and the next time the terminal device enters the DRX activation state is less than or equal to the first preset value. In this case, after the terminal device performs data transmission on the transmission resource, the terminal device will determine whether the start position or end position of the data transmission is less than or equal to the first predetermined time interval from the next time the terminal device enters the DRX activation state. Set value, if yes, the terminal device does not start the first timer; otherwise, the terminal device starts the first timer. For another example, the first information includes a second preset value, and the preset condition is used to indicate that the start position or end position of the transmission resource is greater than or equal to the time interval from the terminal device exiting the DRX activation state in the current DRX cycle. 2. Default value. In this case, after the terminal device performs data transmission on the transmission resource, the terminal device will determine whether the start position or end position of the data transmission is greater than or equal to the time interval between the terminal device exiting the DRX activation state in the current DRX cycle. 2. Default value. If yes, the terminal device does not start the first timer; otherwise, the terminal device starts the first timer. For another example, the first information includes a third preset value, and the preset condition is used to indicate that the start position or end position of the transmission resource is less than or equal to the time interval between the terminal device entering the DRX activation state in the current DRX cycle and the third preset value in the current DRX cycle. Three presets. In this case, after the terminal device performs data transmission on the transmission resource, the terminal device will determine whether the start position or end position of the data transmission is less than or equal to the time interval between the terminal device entering the DRX activation state in the current DRX cycle. Three preset values, if yes, the terminal device does not start the first timer; otherwise, the terminal device starts the first timer.

For specific examples of the preset condition, please refer to the embodiment corresponding to FIG. 5A or FIG. 5B below, which will not be described again here.

In another possible implementation, the first information serves as an indication, and the first information is used to indicate whether each of the at least one transmission resource should start the first timer after data transmission. After the terminal device receives the first information, the terminal device can directly determine whether to start the first timer based on the first information without requiring other conditions or rules.

For specific examples of the preset condition, please refer to the embodiment corresponding to FIG. 3A or FIG. 3B below, which will not be described again here.

When the terminal device determines not to start the first timer based on the first information, or when the first information indicates not to start the first timer, 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 starting the first timer, the terminal device performs step 203b.

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 device determines not to start the first timer corresponding to the transmission resource based on the first information indication, or when the first information indicates not to start the first timer corresponding to the transmission resource, the terminal device performs the transmission corresponding to the first information. After data transmission is performed on a resource, the first timer corresponding to the transmission resource is not started.

In a possible implementation, the first timer is used to indicate the minimum interval at which the terminal device expects to receive the retransmission schedule, that is, the duration of the first timer is the minimum interval at 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 a possible example of this implementation, 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 not to activate the drx-HARQ-RTT-TimerUL, the terminal device does not activate the drx-HARQ-RTT-TimerUL corresponding to the PUSCH resource after sending uplink data on the PUSCH resource.

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

In another possible example of this implementation, when the first information indicates not to start the drx-HARQ-RTT-TimerDL, the terminal device sends a hybrid automatic repeat request HARQ feedback for downlink transmission on the transmission resource. The drx-HARQ-RTT-TimerDL is not started afterwards. For example, after the terminal device receives downlink data on the PDSCH resource, the terminal device will also send HARQ feedback to the access network device. The HARQ feedback may be a positive response (acknowledge, ACK), indicating that the terminal device has successfully received the data from the PDSCH. Data; HARQ feedback may also be a negative-acknowledgment (NACK), indicating that the terminal device did not successfully receive data from the PDSCH. In this example, after the terminal device sends HARQ feedback, the terminal device does not start drx-HARQ-RTT-TimerDL.

In this implementation, the terminal device will start the drx-RetransmissionTimer (for example, drx-RetransmissionTimerUL or drx -RetransmissionTimerDL). Therefore, if the terminal device does not start drx-HARQ-RTT-Timer, there will be no trigger to start drx-RetransmissionTimer due to drx-HARQ-RTT-Timer timeout. Since the terminal device will not be in the DRX activation state due to starting drx-RetransmissionTimer, it does not need to monitor the PDCCH during the running time of drx-RetransmissionTimer. Therefore, it is beneficial to shorten the time the terminal device is in the DRX activated state, thereby helping to save power consumption of the terminal device.

In another possible implementation, the first timer is used to indicate the maximum waiting time for receiving the retransmission schedule, that is, the duration of the first timer is the maximum waiting time for receiving the retransmission schedule. At this time, the first timer is drx-RetransmissionTimerUL or drx-RetransmissionTimerDL.

In a possible example of this implementation, for uplink transmission, the first timer is drx-RetransmissionTimerUL. At this time, when the first information indicates not to start the drx-RetransmissionTimerUL, the terminal device does not start the drx-RetransmissionTimerUL when the drx-HARQ-RTT-TimerUL times out.

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

In this implementation, although the terminal device can start drx-HARQ-RTT-Timer (for example, drx-HARQ-RTT-TimerUL or drx-HARQ-RTT-TimerDL), the terminal device drx-HARQ-RTT-Timer timeout is based on The first message does not start drx-RetransmissionTimer (eg, drx-RetransmissionTimerUL or drx-RetransmissionTimerDL). Therefore, the terminal device will not be in the DRX activation state due to starting drx-RetransmissionTimer, nor will it monitor PDCCH during the running time of drx-RetransmissionTimer. Therefore, it is beneficial to shorten the time the terminal device is in the DRX activated state, thereby helping to save power consumption of the terminal device.

Step 203b: After performing data transmission on the transmission resource, the terminal device starts the first timer corresponding to the transmission resource.

When the terminal device determines to start the first timer corresponding to the transmission resource based on the first information indication, or when the first information indicates to start the first timer corresponding to the transmission resource, the terminal device starts the transmission resource corresponding to the first information. After data transmission, the first timer corresponding to the transmission resource is started.

In a possible example of this implementation, 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 starting the drx-HARQ-RTT-TimerUL, the terminal device starts the drx-HARQ-RTT-TimerUL after sending uplink data on the PUSCH.

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

In another possible example of this implementation, when the first information indicates starting the drx-HARQ-RTT-TimerDL, the terminal device sends hybrid automatic retransmission of downlink transmission on the transmission resource. The drx-HARQ-RTT-TimerDL is started after requesting HARQ feedback.

In a possible example of this implementation, for uplink transmission, the first timer is drx-RetransmissionTimerUL. At this time, when the first information indicates starting the drx-RetransmissionTimerUL, the terminal device starts drx-RetransmissionTimerUL when the drx-HARQ-RTT-TimerUL times out.

In another possible example of this implementation, for downlink transmission, the first timer is drx-RetransmissionTimerDL. At this time, when the first information indicates starting the drx-RetransmissionTimerDL, the terminal device starts drx-RetransmissionTimerDL when the drx-HARQ-RTT-TimerDL times out.

In this embodiment, because the terminal device can decide based on the first information whether to start the first timer corresponding to the transmission resource after performing data transmission on any one of the at least one transmission resource, instead of completing it on the transmission resource. The first timer must be started after data transmission. Therefore, it is beneficial to flexibly control the terminal device to start the first timer at the appropriate time and enter the DRX activation state. In addition, when the terminal device determines not to start the first timer based on the first information, the terminal device may not enter the DRX activation state. Therefore, it is beneficial to shorten the time the terminal device is in the DRX activation state and to save the power consumption of the terminal device.

The communication method proposed in this application will be further introduced below with reference to Figures 3A and 3B.

As shown in Figure 3A, the first information includes at least one character, and the first timer is drx-HARQ-RTT-TimerUL or drx-HARQ-RTT-TimerDL. This embodiment may be executed by a terminal device and an access network device, or may be executed by a component of the terminal device (for example, a processor, a chip, or a chip system) and a component of the access network device (for example, a processor, a chip, or a chip system) system and other components) execution. Taking terminal equipment and access network equipment as an example, the terminal equipment and access network equipment will perform the following steps:

Step 301: The access network device sends first information to the terminal device; accordingly, the terminal device receives the first information from the access network device.

In a possible implementation, the access network device sends a transmission resource configuration including the first information to the terminal device; correspondingly, the terminal device receives the transmission resource configuration including the first information from the access network device. The transmission resource configuration is used to configure at least one transmission resource for the terminal device. When the transmission resource configuration sent by the access network device is different, the transmission resource configured by the access network device for the terminal device is different. They are introduced below:

Optionally, the aforementioned transmission resource configuration is configuration information for pre-configured resources (pre-configured resources), and the transmission resources are pre-configured resources. The preconfigured resources are divided into configured grant (CG) resources for uplink transmission and semi-persistent scheduling (SPS) resources for downlink transmission according to different transmission directions.

For example, the aforementioned transmission resource configuration is a CG resource configuration, and the aforementioned transmission resource is a CG resource. For example, the transmission resource is configured as a configured grant Type 1 (configured grant Type 1) configuration, and the transmission resource is a configured grant Type 1 resource. In addition to the first information, the configuration of configuring grant type 1 also includes the time-frequency resource location of configuring grant type 1, the period of CG resources, the number of HARQ processes using CG resources, and the modulation and coding scheme (MCS). ) and other parameters. After receiving the configuration of configuration authorization type 1, the terminal device stores the configuration authorization type 1 resource as a configured uplink grant, and then the terminal device can use the configuration authorization type 1 resource for uplink data transmission. For another example, the transmission resource is configured as configured grant Type 2. Configuration, the transmission resource is configured authorization type 2 resource. In addition to the first information, the configuration of configuration authorization type 2 also includes parameters such as the period of the CG resource and the number of HARQ processes using the CG resource. After the terminal device receives the aforementioned configuration of configuration authorization type 2, the terminal device also needs to receive the activation DCI indicating the time-frequency resource location and modem mode MCS of configuration authorization type 2 in order to store the configuration authorization type 2 resource as the configuration uplink authorization. 2. Then the terminal device can use the configured authorization type 2 resources for uplink data transmission.

Illustratively, the aforementioned transmission resource configuration is SPS resource configuration. For example, the access network device sends an SPS resource configuration to the terminal device. In addition to the first information, the SPS resource configuration also includes parameters such as the cycle of the SPS resource. After the terminal device receives the aforementioned SPS resource configuration, the terminal device also needs to receive the activation DCI indicating the time-frequency resource location of the SPS resource and the modem mode MCS before it can use the SPS resource for downlink data transmission.

In another possible implementation, the terminal device may obtain the first information from the activated DCI corresponding to the transmission resource configuration.

For example, the terminal device may obtain the first information from the activated DCI of the CG resource configuration. For example, the terminal device receives an activation DCI for configuration authorization type 2 from the access network device. The activation DCI includes first information, a time-frequency resource location indicating configuration authorization type 2, a modem MCS and other information.

For example, the terminal device may obtain the first information from the activated DCI of the SPS resource configuration. For example, the terminal device receives the activation DCI of the SPS resource configuration from the access network device. The activation DCI includes the first information, the time-frequency resource location indicating the SPS resource, the modem MCS and other information.

In practical applications, the terminal device can obtain the first information using any of the aforementioned implementation methods, and the details are not limited here.

In this embodiment, the first information includes at least one character. Among them, the value of each character is any one of two possible values, one of which means starting drx-HARQ-RTT-Timer, and the other value means not starting drx-HARQ-RTT-Timer. For example, the value of each character may be 0 or 1. If the value of the character is 0, it means that drx-HARQ-RTT-Timer is not started; if the value of the character is 1, it means that drx-HARQ-RTT-Timer is started. For another example, the value of each character may be false (false) or true (true). If the value of the character is false, it means that drx-HARQ-RTT-Timer is not started. If the value of the character is true, it means that drx-HARQ-RTT-Timer is started. This application does not limit which value is used to indicate the event of starting drx-HARQ-RTT-Timer and the event of not starting drx-HARQ-RTT-Timer.

In addition, each character in the first information corresponds to at least one transmission resource and is used to instruct the terminal device whether to start the first timer corresponding to the transmission resource after performing data transmission on the transmission resource; or, in the first information, Each character of corresponds to at least one HARQ process and is used to indicate whether the terminal device starts the first timer corresponding to the HARQ process after performing data transmission on the transmission resource associated with the HARQ process.

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

For example, 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 corresponding to each bit. Among them, a bit with a 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; a bit with a value of 1 in the bit sequence indicates that the drx-HARQ-RTT-Timer indicated by the bit is started. The drx-HARQ-RTT-Timer corresponding to the transmission resource or HARQ process.

For example, take one bit in the bit sequence corresponding to one transmission resource. If the first information is a bit sequence including 6 bits, and the 6 bits correspond to 6 consecutive transmission resources in the time domain, then the bit sequence "001000" indicates that drx-HARQ- is started only after data transmission on the third transmission resource. RTT-Timer, does not start after data transmission on several other transport resources (e.g. first transport resource, second transport resource, fourth transport resource, fifth transport resource and sixth transport resource) drx-HARQ-RTT-Timer. As another example, take one bit in the bit sequence corresponding to two transmission resources. If the first information is a bit sequence including 6 bits, and the 6 bits correspond to 12 consecutive transmission resources in the time domain, then the first "0" in the bit sequence "001000" represents the difference between the first transmission resource and the second transmission resource. The drx-HARQ-RTT-Timer will not be started after data transmission on the first transmission resource. The second "0" in "001000" means that drx will not be started after data transmission on the third and fourth transmission resources. -HARQ-RTT-Timer, "1" in "001000" means that drx-HARQ-RTT-Timer is started after data transmission on the third and fourth transmission resources, and so on, starting from the fifth to fourth transmission resources. Drx-HARQ-RTT-Timer is not started for data transmission on twelve transmission resources.

It should be understood that the situation in which one bit in the bit sequence corresponds to one HARQ process or multiple HARQ processes is similar to the foregoing example, and will not be described again here.

In another possible implementation, the first information also includes an index of each character, and the index of the character is used to display each word. The transmission resource or HARQ process corresponding to the symbol.

As an example, the characters in the first information correspond to the transmission resources. The first information includes L characters and L character indexes, where L is an integer greater than or equal to 1. The index of the character indicates which character among the L characters the character is. For example, the index of this character is 0, which means that this character is the first character among L characters. For another example, the index of the character is 1, which means that the character is the second character among L characters. For another example, the index of the character is 2, which means that the character is the third character among L characters. By analogy, we will not go into details here. At this time, the first information can be as shown in Table 1-1 below:

Table 1-1

For example, take the first information with L=3 as an example. The character with index 0 has a value of 0, which means that drx-HARQ-RTT-Timer is not started after data transmission on the first transmission resource; the character with index 1 has a value of 1, which means that drx-HARQ-RTT-Timer is not started after data transmission on the first transmission resource. drx-HARQ-RTT-Timer is started after data transmission on the third transmission resource; the value of the character with index 2 is 0, and drx-HARQ-RTT-Timer is not started after data transmission on the third transmission resource.

As an example, the characters in the first information correspond to the HARQ process. The first information includes M characters and indices of M characters, where M is an integer greater than or equal to 1. Optionally, the M character indexes are the process identifiers of the M processes respectively. For example, the process identifiers of M HARQ processes are i, i+1, i+2, ..., i+(M-1). At this time, the first information can be as shown in Table 2-1 below:

table 2-1

For example, take the first information with M=3 as an example. The first information corresponds to 3 HARQ processes. Among them, the character corresponding to the i-th HARQ process is 0, which means that drx-HARQ-RTT-Timer will not be started after data transmission on the transmission resource corresponding to the HARQ process identified as i; the (i+1)-th HARQ process corresponds to The character is 0, indicating that drx-HARQ-RTT-Timer will not be started after data transmission on the transmission resource corresponding to the HARQ process identified as (i+1); the character corresponding to the (i+2) HARQ process is 1 , indicating that drx-HARQ-RTT-Timer is started after data transmission on the transmission resource corresponding to the HARQ process identified as (i+2).

Step 302: The terminal device determines whether to start the discontinuous reception hybrid automatic repeat request round-trip delay timer corresponding to the character based on each character.

In a possible implementation, one character in the first information corresponds to at least one transmission resource. The terminal device needs to determine which character or characters in the first information corresponds to the transmission resource currently transmitting data, and then determine whether to start The drx-HARQ-RTT-Timer corresponding to this transmission resource.

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

i＝N modulo L; (Formula 1)

Among them, N represents the index of the symbol where the transmission resource to be determined whether to start the timer is located, that is, the index of the symbol where the timing of data transmission is located, hereinafter referred to as the Nth transmission resource; L represents the number of characters included in the first information ;i represents the index of the character in the first information corresponding to the Nth transmission resource.

For example, the terminal device may determine N based on the formula for calculating CG resource locations or calculating SPS resources in the MAC protocol. For example, for CG type 2, when receiving activated DCI, the location of the Nth CG resource is determined through the following formula 2:

[(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).

Among them, numberOfSlotsPerFrame is the number of time slots included in each frame; numberOfSymbolsPerSlot is the number of time slots included in each time slot. The number of symbols; SFN, slot number in the frame and symbol number in the slot are respectively the system frame number, timeslot number (i.e. the index of the slot) and symbol number (i.e. the index of the symbol) of the Nth CG resource; SFN _{start time} , slot _{start time} and symbol _{start time} are respectively the system frame number, slot number (i.e. the index of the slot) and the symbol number (i.e. the index of the symbol) of PUSCH at the first transmission opportunity of the initialized configuration authorization resource; periodicity Indicates the period for configuring authorized resources; 1024 indicates that a superframe includes 1024 frames.

It should be understood that there are many variations of Formula 2, and this application only uses the above-mentioned Formula 2 as an example to introduce.

For example, the terminal device determines the Nth transmission resource based on Formula 2, and obtains i based on Formula 1. Then, the terminal device determines whether the drx-HARQ-RTT-Timer corresponding to the N-th transmission resource is started based on the value of the i-th character in the first information. For ease of understanding, taking L=6, N=61 as an example, the terminal device determines i=61 modulo 6=1 based on Formula 1, and then the terminal device searches for the 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, indicating that drx-HARQ-RTT-Timer is started after data transmission. By analogy, the terminal device can determine the characters corresponding to each transmission resource after data transmission on the transmission resource, and then determine whether to start drx-HARQ-RTT-Timer after data transmission on each transmission resource.

In another possible implementation, one character in the first information corresponds to at least one HARQ process. The terminal device needs to determine which character or characters in the first information corresponds to the HARQ process currently transmitting data, and then determine whether Start the drx-HARQ-RTT-Timer corresponding to the HARQ process.

For example, if the process identifier of the HARQ process in which the terminal device currently transmits data is i, the terminal device can determine the value of the character corresponding to the HARQ process based on the first information (for example, the example shown in Table 2-1) as 0, indicating not to start drx-HARQ-RTT-Timer. By analogy, the terminal device can determine whether to start the drx-HARQ-RTT-Timer corresponding to each HARQ process based on the first information.

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

Step 303a: After the terminal device performs data transmission on the transmission resource corresponding to the character, it starts the corresponding discontinuous reception hybrid automatic repeat request round-trip delay timer.

After the terminal device starts the drx-HARQ-RTT-Timer corresponding to the transmission resource corresponding to the character, if the drx-HARQ-RTT-Timer times out, the terminal device will start the drx-RetransmissionTimer corresponding to the transmission resource.

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 device does not start the drx-HARQ-RTT-Timer corresponding to the transmission resource corresponding to the character, the terminal device will not start the drx-RetransmissionTimer because the drx-HARQ-RTT-Timer times out.

For ease of understanding, the starting status of each timer under the action of the first information will be introduced below with reference to FIG. 4A and FIG. 4B.

As shown in Figure 4A, in uplink transmission, the transmission resource is PUSCH resource. Assume that L=6 and the first information is "001000". At this time, the value of the character with index 0 is 0, which means that drx-HARQ-RTT-TimerUL is not started after data transmission on the first transmission resource (for example, transmission resource 1) in every 6 transmission resources; index The character with index 1 has a value of 0, indicating that drx-HARQ-RTT-TimerUL is not started after data transmission on the second transmission resource (for example, transmission resource 2); the character with index 2 has a value of 1, Indicates that drx-HARQ-RTT-TimerUL is started after data transmission on the third transmission resource (for example, transmission resource 3); the value of the character with index 3 is 0, indicating that the drx-HARQ-RTT-TimerUL is started after data transmission on the fourth transmission resource (for example, transmission resource 3) drx-HARQ-RTT-TimerUL is not started after data transmission on resource 4); the value of the character with index 4 is 0, indicating that it is not started after data transmission on the fifth transmission resource (for example, transmission resource 5) drx-HARQ-RTT-TimerUL; the character with index 5 has a value of 0, indicating that drx-HARQ-RTT-TimerUL is not started after data transmission on the sixth transmission resource (for example, transmission resource 6). It can be seen from the example shown in Figure 4A that the terminal device needs to start drx-HARQ-RTT-TimerUL after transmitting on the third transmission resource among the six adjacent transmission resources, and, in the drx corresponding to the third transmission resource -After HARQ-RTT-TimerUL times out, the drx-RetransmissionTimerUL corresponding to the third transmission resource. At this time, the terminal device enters the DRX activation state to monitor the PDCCH from the access network device for retransmission scheduling. In addition, in dynamic downlink allocation, the operation of drx-onDurationTimer and drx-InactivityTimer will also cause the terminal device to enter the activation state. Combining the duration of the terminal device entering the active state due to the running of drx-RetransmissionTimerUL, drx-onDurationTimer and drx-InactivityTimer, the DRX status of the terminal device when the aforementioned three timers are running can be obtained. The DRX status includes DRX ON (indicating the DRX active state) and DRX OFF (indicating the DRX sleep state). In Figure 4A, the white box represents the time the terminal device is in the DRX activation state, and the gray box represents the time the terminal device does not enter the DRX activation state because drx-RetransmissionTimerUL is not started. It can be seen that the time the terminal equipment is in the DRX activation state is shortened under the influence of the first information, which is beneficial to the terminal equipment saving power consumption.

As shown in Figure 4B, in downlink transmission, the transmission resource is PDSCH resource. Assume that L=6 and the first information is "001000". Similar to the example shown in Figure 4A, in Figure 4B, the terminal device needs to start drx-HARQ-RTT-TimerDL after transmitting on the third transmission resource among the six adjacent transmission resources, and, in the third After the drx-HARQ-RTT-TimerDL corresponding to the transmission resource times out, the drx-RetransmissionTimerDL corresponding to the third transmission resource. At this time, the terminal device enters the DRX activation state to monitor the PDCCH from the access network device for retransmission scheduling. In addition, in dynamic downlink allocation, the operation of drx-onDurationTimer and drx-InactivityTimer will also cause the terminal device to enter the activation state. Combining the duration of the terminal device entering the active state due to the running of drx-RetransmissionTimerDL, drx-onDurationTimer and drx-InactivityTimer, the DRX status of the terminal device when the aforementioned three timers are running can be obtained. The DRX status includes DRX ON (indicating DRX active state) and DRX OFF (indicating DRX sleep state). In Figure 4B, the white box represents the time the terminal device is in the DRX activation state, and the gray box represents the time the terminal device does not enter the DRX activation state because drx-RetransmissionTimerDL is not started. It can be seen that the role of the terminal device in the first information The duration of the DRX activation state is shortened, which helps the terminal device save power consumption.

In this embodiment, the terminal device will start the drx-RetransmissionTimer (for example, drx-RetransmissionTimerUL or drx -RetransmissionTimerDL). Therefore, when the terminal device does not start drx-HARQ-RTT-Timer, drx-HARQ-RTT-Timer will not time out, and the terminal device will not start drx-RetransmissionTimer because drx-HARQ-RTT-Timer times out. Because the terminal equipment will not enter the active state by starting drx-RetransmissionTimer, nor will it monitor the PDCCH used for retransmission scheduling. Therefore, it is beneficial to shorten the time the terminal device is in an activated state, thereby helping to save power consumption of the terminal device.

As shown in Figure 3B, another embodiment of the communication method is shown. When the first timer is used to indicate the maximum waiting time for receiving retransmission scheduling, the first timer is drx-RetransmissionTimerUL or drx-RetransmissionTimerDL. The aforementioned step 302 in Figure 3A can be replaced with step 302a as shown in Figure 3B , the aforementioned step 303a in Figure 3A can be replaced with step 303c as shown in Figure 3B , and the aforementioned step 303b in Figure 3A can be replaced with as shown in Figure 3B Step 303d shown in 3B.

Step 302a: The terminal device determines whether to start the discontinuous reception retransmission timer corresponding to the transmission resource corresponding to the character based on each character.

Specifically, step 302a in FIG. 3B is similar to step 302 in FIG. 3A. For details, please refer to the relevant description of step 302 above.

When the character indicates that drx-RetransmissionTimer is enabled, the terminal device executes step 303c; when the character indicates that drx-RetransmissionTimer is not enabled, the terminal device executes step 303d.

Step 303c: The terminal device starts the corresponding discontinuous reception retransmission timer after performing data transmission on the transmission resource corresponding to the character.

Specifically, the terminal device starts the drx-HARQ-RTT-Timer corresponding to the transmission resource after performing data transmission on the transmission resource corresponding to the character. When the drx-HARQ-RTT-Timer times out, the terminal device starts the drx-HARQ-RTT-Timer corresponding to the transmission resource. drx-RetransmissionTimer.

Step 303d: After performing data transmission on the transmission resource corresponding to the character, the terminal device does not start the corresponding discontinuous reception retransmission timer.

Specifically, the terminal device starts the drx-HARQ-RTT-Timer corresponding to the transmission resource after performing data transmission on the transmission resource corresponding to the character. When the drx-HARQ-RTT-Timer times out, the terminal device does not start the transmission resource corresponding to the character. drx-RetransmissionTimer.

For ease of understanding, the starting status of each timer under the action of the first information will be introduced below in conjunction with FIG. 4C and FIG. 4D.

As shown in Figure 4C, in uplink transmission, the transmission resource is PUSCH resource. Assume that L=6 and the first information is "001000". At this time, the value of the character with index 0 is 0, which means that drx-HARQ-RTT-TimerUL is started after data transmission on the first transmission resource in every 6 transmission resources, and, after drx-HARQ-RTT- drx-HARQ-RTT-TimerUL is not started when TimerUL times out; the value of the character with index 1 is 0, indicating that drx-HARQ-RTT-TimerUL is started after data transmission on the second transmission resource, and, after drx- drx-HARQ-RTT-TimerUL is not started when HARQ-RTT-TimerUL times out; and so on, which will not be described here. It can be seen from the example shown in Figure 4C that the terminal device will start drx-HARQ-RTT-TimerUL after performing data transmission on each of the six adjacent transmission resources. Only the drx-HARQ-RTT-TimerUL corresponding to the third transmission resource will be started. drx-RetransmissionTimerUL will be started after HARQ-RTT-TimerUL times out, and drx-RetransmissionTimerUL will not be started after drx-HARQ-RTT-TimerUL corresponding to other transmission resources times out. Since drx-HARQ-RTT-TimerUL operation will not cause the terminal device to enter the DRX activation state, the DRX activation state of the terminal device in the example shown in Figure 4C is the same as the DRX activation state of the terminal device in the example shown in Figure 4A, that is, In Figure 4C, the white box represents the time the terminal device is in the DRX activation state, and the gray box represents the time it does not enter the DRX activation state because drx-RetransmissionTimerUL is not started. It can be seen that the duration of the terminal device in the DRX activation state is shortened under the action of the first information, which is beneficial to the terminal device saving power consumption.

As shown in Figure 4D, in downlink transmission, the transmission resource is PDSCH resource. Assume that L=6 and the first information is "001000". Similar to the example shown in Figure 4C, in Figure 4D, the terminal device starts drx-HARQ-RTT-TimerDL after data transmission on each of the 6 adjacent transmission resources, only in the third transmission drx-RetransmissionTimerDL will be started after the drx-HARQ-RTT-TimerDL corresponding to the resource times out, and drx-RetransmissionTimerDL will not be started after the drx-HARQ-RTT-TimerDL corresponding to other transmission resources times out. In Figure 4D, the white box represents the time the terminal device is in the DRX activation state, and the gray box represents the time it does not enter the DRX activation state because drx-RetransmissionTimerDL is not started. It can be seen that the duration of the terminal device in the DRX activation state is shortened under the action of the first information, which is beneficial to the terminal device saving power consumption.

In this implementation, although the terminal device can start drx-HARQ-RTT-Timer (for example, drx-HARQ-RTT-TimerUL or drx-HARQ-RTT-TimerDL), the terminal device drx-HARQ-RTT-Timer timeout is based on The first message does not start drx-RetransmissionTimer (eg, drx-RetransmissionTimerUL or drx-RetransmissionTimerDL). Therefore, the terminal device will not enter the active state by starting drx-RetransmissionTimer, nor will it monitor the PDCCH used for retransmission scheduling. Therefore, it is beneficial to shorten the time the terminal device is in an activated state, thereby helping to save power consumption of the terminal device.

The communication method proposed in this application will be further introduced below with reference to Figures 5A and 5B.

As shown in Figure 5A, the first information includes at least one threshold, and the first timer is drx-HARQ-RTT-TimerUL or drx-HARQ-RTT-TimerDL. This embodiment may be executed by a terminal device and an access network device, or may be executed by a component of the terminal device (for example, a processor, a chip, or a chip system) and a component of the access network device (for example, a processor, a chip, or a chip system) system and other components) execution. Taking terminal equipment and access network equipment as an example, the terminal equipment and access network equipment will perform the following steps:

Step 501: The access network device sends first information to the terminal device; accordingly, the terminal device receives the first information from the access network device.

In this embodiment, the implementation manner in which the terminal device obtains the first information is similar to step 301. For details, please refer to the relevant description in step 301 above, which will not be described again here.

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

Specifically, based on different reference moments, there are many different implementations of the preset conditions, which are introduced below:

In a possible example, the first information includes a first threshold, and the preset condition corresponding to the first threshold is: the time interval between the end position of the transmission resource and the start moment of the next DRX cycle is less than or equal to the first threshold. . As shown in Figure 6A, uplink transmission is taken as an example. For transmission resource 1, the current DRX cycle of transmission resource 1 is DRX cycle (j-1), and the next DRX cycle is DRX cycle j. The preset condition corresponding to the first threshold is the end position of transmission resource 1 and DRX cycle j. The duration interval a1 between the starting positions in is less than or equal to the first threshold. For transmission resource 5, the current DRX cycle of transmission resource 5 is DRX cycle j, and the next DRX cycle is DRX cycle (j+1). The preset condition corresponding to the first threshold is that the end position of transmission resource 5 is equal to the DRX cycle (j+1). The duration interval a2 between the starting positions of j+1) is less than or equal to the first threshold.

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

In this example, since the terminal device will start drx-onDurationTimer within a short period of time after the start time of the DRX cycle (for example, within a time slot after the start time of the DRX cycle), the terminal device is in DRX is active and can perform retransmission scheduling. Therefore, if the end position of the transmission resource is shorter than the start time of the next DRX cycle (for example, less than the first threshold), even if the terminal device fails to transmit the data transmitted on the current transmission resource, the terminal device still has The opportunity is to perform retransmission scheduling within the DRX activation time in the next DRX cycle. Further, if the first threshold is smaller than the PDB of the service transmitted by the transmission resource, while ensuring that the data that failed to be transmitted has the opportunity to be retransmitted, it can also ensure that the retransmitted data meets the PDB requirements without affecting the normality of the service. run.

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

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

In another possible implementation, the preset condition indicated by the threshold in the first information is a condition with the second timer as a reference. The second timer is a timer that enables the terminal device to be in a DRX activated state, that is, the terminal device is in a DRX activated state when the second timer is running. For example, the second timer may be any one of drx-onDurationTimer, drx-InactivityTimer, drx-RetransmissionTimerUL, drx-RetransmissionTimerDL, and drx-RetransmissionTimerSL.

Taking the second timer as drx-onDurationTimer as an example, the preset condition corresponding to the third threshold is: the time interval between the end position of the transmission resource and the start position of the next drx-onDurationTimer run by the terminal device is less than or equal to the third timer. Three thresholds. As shown in Figure 6B, uplink transmission is taken as an example. For transmission resource 1, the current DRX cycle of transmission resource 1 is DRX cycle (j-1), and the next DRX cycle is DRX cycle j. The preset condition corresponding to the third threshold is the end position of transmission resource 1 and DRX cycle j. The duration interval c1 between the starting positions of the drx-onDurationTimer is less than or equal to the third threshold. For transmission resource 5, the current DRX cycle of transmission resource 5 is DRX cycle j, and the next DRX cycle is DRX cycle (j+1). The preset condition corresponding to the third threshold is that the end position of transmission resource 5 is equal to the DRX cycle (j+1). The duration interval c2 between the starting positions of drx-onDurationTimer in j+1) is less than or equal to the third threshold.

Taking the second timer as drx-InactivityTimer as an example, the preset condition corresponding to the third threshold is: the time interval between the end position of the transmission resource and the start position of the next drx-InactivityTimer run by the terminal device is less than or equal to the third timer. Three thresholds. As shown in Figure 6C, uplink transmission is taken as an example. For transmission resource 1, the current DRX cycle of transmission resource 1 is DRX cycle (j-1), and the next DRX cycle is DRX cycle j. The preset condition corresponding to the third threshold is the end position of transmission resource 1 and DRX cycle j. The duration interval f1 between the starting positions of drx-InactivityTimer is less than or equal to the third threshold. For transmission resource 5, the current DRX cycle of transmission resource 5 is DRX cycle j, and the next DRX cycle is DRX cycle (j+1). The preset condition corresponding to the third threshold is that the end position of transmission resource 5 is equal to the DRX cycle (j+1). The time interval f2 between the starting positions of drx-InactivityTimer in j+1) is less than or equal to the third threshold.

Taking the second timer as drx-onDurationTimer as an example, the preset condition corresponding to the fourth threshold is: the time interval between the end position of the transmission resource and the end position of the drx-onDurationTimer currently running on the terminal device is greater than or equal to the fourth threshold. In this example, the end position of the transmission resource is before the end position of the drx-onDurationTimer run of the current DRX cycle. Still taking Figure 6B as an example, for transmission resource 2, the current DRX cycle of transmission resource 2 is DRX cycle j. The preset condition corresponding to the fourth threshold is the end position of transmission resource 2 and the drx-onDurationTimer in DRX cycle j. The duration interval d1 between the end positions is greater than or equal to the fourth threshold. For transmission resource 6, the current DRX cycle of transmission resource 6 is the DRX cycle (j+1). The preset condition corresponding to the fourth threshold is the end position of transmission resource 6 and the drx-onDurationTimer in the DRX cycle (j+1). The duration interval d2 between the starting positions is greater than or equal to the fourth threshold.

Taking the second timer as drx-InactivityTimer as an example, the preset condition corresponding to the fourth threshold is: the time interval between the end position of the transmission resource and the end position of drx-InactivityTime currently running on the terminal device is greater than or equal to the fourth threshold. Still taking Figure 6C as an example, for transmission resource 3, the current DRX cycle of transmission resource 3 is DRX cycle j, and the preset condition corresponding to the fourth threshold is transmission resource 3 The duration interval g1 between the end position of and the end position of drx-InactivityTimer in DRX cycle j is greater than or equal to the fourth threshold.

Taking the second timer as drx-onDurationTimer as an example, the preset condition corresponding to the fifth and fourth thresholds is: the time interval between the end position of the transmission resource and the start position of the drx-onDurationTimer currently running on the terminal device is less than or equal to Fifth threshold. In this example, the end position of the transmission resource can be before the drx-onDurationTimer running start position of the current DRX cycle, or after the running end position. Still taking Figure 6B as an example, for transmission resource 2, the current DRX cycle of transmission resource 2 is DRX cycle j. The preset condition corresponding to the third threshold is the end position of transmission resource 2 and the drx-onDurationTimer in DRX cycle j. The time interval e1 between the starting positions is less than or equal to the fifth threshold. For transmission resource 6, the current DRX cycle of transmission resource 6 is the DRX cycle (j+1). The preset condition corresponding to the third threshold is the end position of transmission resource 6 and the drx-onDurationTimer in the DRX cycle (j+1). The duration interval e2 between the starting positions is less than or equal to the fifth threshold.

Taking the second timer as drx-InactivityTimer as an example, the preset condition corresponding to the fifth threshold is: the time interval between the end position of the transmission resource and the start position of the drx-InactivityTimer currently running on the terminal device is less than or equal to the third timer. Five thresholds. As shown in Figure 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 during the running period of drx-InactivityTimer. In this case, the preset condition corresponding to the fifth threshold is that the time interval h1 between the end position of transmission resource 3 and the start position of drx-InactivityTimer in DRX cycle j is greater than or equal to the fifth threshold.

In this example, because the terminal device is in the DRX activated state during the running of the second timer, and the terminal device can perform retransmission scheduling when it is in the DRX activated state. Therefore, if the terminal device is currently in the running period of the second timer, and the time interval between the end position of the transmission resource and the start position of the currently running second timer is shorter (for example, the time interval is less than or equal to the Five thresholds), indicating that the terminal device has just started running the second timer, and the second timer may continue to run for a period of time. Therefore, even if the data transmitted by the terminal device on the current transmission resource fails to be transmitted, the terminal device still has the opportunity to perform retransmission scheduling on another transmission resource within the current period of the second timer running.

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

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

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

In a possible implementation, if the first information only includes one threshold, the terminal device determines whether to start drx-HARQ-RTT-Timer based on the preset condition corresponding to the aforementioned threshold. Taking the first information only including the first threshold as an example, if the location of the transmission resource meets the preset condition corresponding to the first threshold, the terminal device determines not to start the drx-HARQ-RTT-Timer corresponding to the transmission resource, that is, the terminal The device will perform 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, that is, the terminal device will perform step 503b. Specifically, regarding the preset condition corresponding to the first threshold, please refer to the relevant description in step 501 above, which will not be described again here.

In another possible implementation, if the first information includes multiple thresholds, the terminal determines whether to start drx-HARQ-RTT-Timer based on preset conditions corresponding to the multiple thresholds. When at least one of the foregoing multiple preset conditions is met, the terminal device determines not to start drx-HARQ-RTT-Timer, that is, the terminal device will execute step 503a; when none of the foregoing multiple preset conditions are met, the terminal device Confirm to start drx-HARQ-RTT-Timer, that is, the terminal device will execute step 503b. As an example, the first information includes a third threshold and a fourth threshold. If the terminal device determines that the location of the transmission resource satisfies the preset condition corresponding to the third threshold and/or the preset condition corresponding to the fourth threshold, then the terminal device determines not to start the drx-HARQ-RTT-Timer corresponding to the transmission resource. , 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 third threshold, and does not meet the preset condition corresponding to the fourth threshold, then the terminal device determines to start the transmission resource corresponding to drx-HARQ-RTT-Timer, that is, the terminal device will execute step 503b.

Step 503a: After the terminal device performs data transmission on the transmission resource, it starts the corresponding discontinuous reception hybrid automatic repeat request round-trip delay timer.

After the terminal device starts the drx-HARQ-RTT-Timer corresponding to the transmission resource, if the drx-HARQ-RTT-Timer times out, the terminal device will start the drx-RetransmissionTimer corresponding to the transmission resource.

Step 503b: 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.

When the terminal device does not start the drx-HARQ-RTT-Timer corresponding to the transmission resource, the terminal device will not start the drx-RetransmissionTimer because the drx-HARQ-RTT-Timer times out.

Specifically, the starting status of each timer under the action of the first information is similar to the situation in the previous step 303a and step 303b, and will not be described again here.

As shown in Figure 5B, another embodiment of the communication method is shown. When the first timer is used to indicate the waiting time for receiving the retransmission schedule, the first timer is drx-RetransmissionTimerUL or drx-RetransmissionTimerDL.

At this time, the preset conditions introduced in step 501 can be replaced by any of the following implementation methods:

In a possible example, the first information includes a first threshold, and the preset condition corresponding to the first threshold is: the time interval between the drx-HARQ-RTT-Timer timeout moment and the start moment 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, and the preset condition corresponding to the second threshold is: the time interval between the drx-HARQ-RTT-Timer timeout moment and the start moment of the current DRX cycle is less than or equal to the second threshold.

In a possible example, the first information includes a third threshold, and the preset condition corresponding to the third threshold is: the drx-HARQ-RTT-Timer timeout is from the start of the next second timer run by the terminal device. The duration interval of the starting position is less than or equal to the third threshold.

In another possible example, the first information includes a fourth threshold, and the preset condition corresponding to the fourth threshold is: the time between the drx-HARQ-RTT-Timer timeout and the second timer currently running on the terminal device is The duration interval of the end position is greater than or equal to the fourth threshold.

In another possible example, the first information includes a fifth threshold, and the preset condition corresponding to the fifth threshold is: the drx-HARQ-RTT-Timer timeout time is a distance from the second timer currently running on the terminal device. The duration interval of the starting position is less than or equal to the fifth threshold.

In another possible implementation, the preset condition indicated by the threshold in the first information is a condition related to DRX activation time (or DRX activation state). Among them, drx-onDurationTimer, drx-InactivityTimer and drx-RetransmissionTimer (for example, drx- During the operation of any timer among RetransmissionTimerUL, drx-RetransmissionTimerDL and drx-RetransmissionTimerSL), the terminal device is in the DRX activation state, and the length of time the terminal device is in the DRX activation state is called the DRX activation time.

In a possible example, the first information includes a sixth threshold, and the preset condition corresponding to the sixth threshold is: the time interval between the drx-HARQ-RTT-Timer timeout moment and the start moment 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, and the preset condition corresponding to the seventh threshold is: the drx-HARQ-RTT-Timer timeout time is within the DRX activation time and is away from the end time of the current DRX activation time. The duration interval is greater than or equal to the seventh threshold.

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

The aforementioned step 502 in Figure 5A can be replaced with step 502a as shown in Figure 5B , the aforementioned step 503a in Figure 5A can be replaced with step 503c as shown in Figure 5B , and the aforementioned step 503b in Figure 5A can be replaced with as shown in Figure 5B Step 503d shown in 5B.

Step 502a: The terminal device determines whether to start the discontinuous reception retransmission timer corresponding to the transmission resource based on the preset condition corresponding to each threshold.

Specifically, step 502a in FIG. 5B is similar to step 502 in FIG. 5A. For details, please refer to the relevant description of step 502 above.

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

Step 503c: The terminal device starts the corresponding discontinuous reception retransmission timer after performing data transmission on the transmission resource.

Specifically, the terminal device starts the drx-HARQ-RTT-Timer corresponding to the transmission resource after performing data transmission on the transmission resource. When the drx-HARQ-RTT-Timer times out, the terminal device starts the drx-RetransmissionTimer corresponding to the transmission resource. .

Step 503d: After performing data transmission on the transmission resource, the terminal device does not start the corresponding discontinuous reception retransmission timer.

Specifically, the terminal device starts the drx-HARQ-RTT-Timer corresponding to the transmission resource after performing data transmission on the transmission resource. When the drx-HARQ-RTT-Timer times out, the terminal device does not start the drx-HARQ-RTT-Timer corresponding to the transmission resource. RetransmissionTimer.

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

The communication device 70 includes at least one processor 701 , at least one memory 702 and at least one transceiver 703 . Among them, the processor 701, the memory 702 and the transceiver 703 are connected. Optionally, communication device 70 may also include an input device 705, an output device 706, and one or more antennas 704. Among them, the antenna 704 is connected to the transceiver 703, and the input device 705 and the output device 706 are connected to the processor 701.

In this embodiment, the memory 702 is mainly used to store software programs and data. The memory 702 may exist independently and be connected to the processor 701. Alternatively, the memory 702 may be integrated with the processor 701, for example, integrated into one or more chips. Among them, the memory 702 can store the program code for executing the technical solution of the embodiment of the present application, and the execution is controlled by the processor 701. The various computer program codes executed can also be regarded as the driver of the processor 701. It should be understood that FIG. 7 in this embodiment only shows one memory and one processor. However, in actual applications, the communication device 70 may have multiple processors or multiple memories, which are not limited here. . In addition, the memory 702 may also be called a storage medium or a storage device. The memory 702 may be a storage element on the same chip as the processor (ie, an on-chip storage element), or an independent storage element, which is not limited in the embodiment of the present application.

In this embodiment, the transceiver 703 can 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 can be connected to the antenna 704. Transceiver 703 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 704 can receive radio frequency signals, and the receiver Rx of the transceiver 703 is used to receive the radio frequency signals from the antennas 704 and convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and convert the digital baseband signals into digital baseband signals. The signal or digital intermediate frequency signal is provided to the processor 701 so that the processor 701 performs further processing on the digital baseband signal or digital intermediate frequency signal, such as demodulation processing and decoding processing. In addition, the transmitter Tx in the transceiver 703 is also used to receive the modulated digital baseband signal or digital intermediate frequency signal from the processor 701, and convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and pass it through a or Multiple antennas 704 transmit the radio frequency signals. Specifically, the receiver Rx can selectively perform one or more levels 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. The sequence of the aforementioned down-mixing processing and analog-to-digital conversion processing is The order is adjustable. The transmitter Tx can selectively perform one or more levels of upmixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or digital intermediate frequency signal to obtain a radio frequency signal. The upmixing processing and digital-to-analog conversion processing The order is adjustable. Digital baseband signals and digital intermediate frequency signals can be collectively referred to as digital signals.

It should be understood that the aforementioned transceiver 703 may also be called a transceiver unit, a transceiver, a transceiver device, etc. Optionally, the devices used to implement the receiving function in the transceiver unit can be regarded as the receiving unit, and the devices used in the transceiver unit used to implement the transmitting function can be regarded as the transmitting unit, that is, the transceiver unit includes a receiving unit and a transmitting unit, and the receiving unit also It can be called a receiver, input port, receiving circuit, etc., and the sending unit can be called a transmitter, transmitter, or transmitting circuit, etc.

The processor 701 may be a baseband processor or a central processing unit (CPU). The baseband processor and the CPU may be integrated together or separated. The processor 701 can be used to implement various functions for the terminal device, for example, to process communication protocols and communication data, or to control the entire terminal device, execute software programs, and process data of software programs; or to assist Complete computing processing tasks, such as graphics and image processing or audio processing, etc.; or the processor 701 is used to implement one or more of the above functions.

In addition, the output device 706 communicates with the processor 701 and can display information in a variety of ways, which are not limited here.

Specifically, the communication device 70 is used to execute the method of the terminal device in the embodiment corresponding to FIG. 2, FIG. 3A, FIG. 3B, FIG. 5A or FIG. 5B. The transceiver 703 in the communication device 70 is used to receive 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 also configured to not start the first timer corresponding to the transmission resource after performing data transmission on the transmission resource when it is determined not to start the first timer corresponding to the transmission resource based on the first information; or, When it is determined to start the first timer corresponding to the transmission resource based on the first information, the first timer corresponding to the transmission resource is started after data transmission is performed on the transmission resource. The duration of the first timer is the minimum interval of the retransmission schedule or the maximum waiting time for receiving the retransmission schedule.

In this embodiment, because the communication device 70 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, it does not have to start the first timer after completing the data transmission on the transmission resource. The timer is therefore beneficial to flexibly controlling the communication device 70 to start the first timer at an appropriate time and enter the DRX activation 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 activation state. Therefore, it is beneficial to shorten the time the communication device 70 is in the DRX activation state and to save the power of the communication device 70. Consumption.

Optionally, the first information is carried in the transmission resource configuration corresponding to the transmission resource; or, the first information is carried in the activation downlink control information DCI used to activate the transmission resource.

In a possible implementation, the first information indicates a threshold, and the threshold corresponds to a preset condition. The processor 701 is specifically configured 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; wherein the preset condition satisfies the starting position of the transmission resource. Or the time interval between the end position and the next time the terminal device enters the DRX activation state is less than or equal to the threshold, and/or, the preset condition satisfies the start position or end position of the transmission resource and the distance between the terminal device exiting the DRX activation state in the current DRX cycle. The duration interval is greater than or equal to the threshold.

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

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

In another possible implementation, the first information includes a first sequence, the first sequence includes at least one bit, each bit corresponds to at least one transmission resource, and each bit is used to indicate the corresponding at least one Whether the transmission resource starts the first timer after data transmission.

In another possible implementation, the first information includes a second sequence, the second sequence includes at least one bit, each of the bits Corresponding to at least one HARQ process associated with the transmission resource configuration, each bit is used to indicate whether to start the first timer after at least one HARQ process performs data transmission on the associated transmission resource.

In addition, the first timer in the communication device 70 may have the following various implementation modes:

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

In a 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 start the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource when the first information indicates not to start the drx-HARQ-RTT-TimerDL; or, when the When the first information indicates starting the drx-HARQ-RTT-TimerDL, start the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource.

In a possible implementation, the first timer is drx-RetransmissionTimerUL. The processor 701 is specifically configured to not start drx-RetransmissionTimerUL when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out when the first information indicates not to start the drx-RetransmissionTimerUL; or, when the first information indicates not to start the drx-RetransmissionTimerUL When instructed to start the drx-RetransmissionTimerUL, drx-RetransmissionTimerUL is started when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out.

In a possible implementation, the first timer is drx-RetransmissionTimerDL. The processor 701 is specifically configured to not start the drx-RetransmissionTimerDL when the drx-HARQ-RTT-TimerDL times out when the first information indicates not to start the drx-RetransmissionTimerDL; or, when the first information indicates to start the drx- During RetransmissionTimerDL, drx-RetransmissionTimerDL is started when drx-HARQ-RTT-TimerDL times out.

It should be noted that the specific implementation manner and beneficial effects of this embodiment may refer to the method of the terminal device in the above embodiment, and will not be described again here.

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

The communication device 80 includes 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 through a connecting device, and the antenna 804 is connected to the transceiver 803. The aforementioned connection device may include various interfaces, transmission lines or buses, etc., which is not limited in this embodiment.

Among them, the memory 802 is mainly used to store software programs and data. The memory 802 may exist independently and be connected to the processor 801. Alternatively, the memory 802 may be integrated with the processor 801, for example, integrated into one or more chips. Among them, the memory 802 can store the program code for executing the technical solution of the embodiment of the present application, and the execution is controlled by the processor 801. The various computer program codes executed can also be regarded as the driver of the processor 801. It should be understood that FIG. 8 in this embodiment only shows one memory and one processor. However, in actual applications, the communication device 80 may have multiple processors or multiple memories, which are not limited here. . In addition, the memory 802 may also be called a storage medium or a storage device. The memory 802 may be a storage element on the same chip as the processor (ie, an on-chip storage element), or an independent storage element, which is not limited in the embodiment of the present application.

In this embodiment, the transceiver 803 can be used to support the reception or transmission of radio frequency signals between the communication device 80 and the terminal device, and the transceiver 803 can be connected to the antenna 804. Transceiver 803 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 804 can receive radio frequency signals, and the receiver Rx of the transceiver 803 is used to receive the radio frequency signals from the antennas 804 and convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and convert the digital baseband signals into digital baseband signals. The signal or digital intermediate frequency signal is provided to the processor 801, so that the processor 801 performs further processing on the digital baseband signal or digital intermediate frequency signal, such as demodulation processing and decoding processing. In addition, the transmitter Tx in the transceiver 803 is also used to receive the modulated digital baseband signal or digital intermediate frequency signal from the processor 801, and convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and pass it through a or Multiple antennas 804 transmit the radio frequency signals. Specifically, the receiver Rx can selectively perform one or more levels 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. The aforementioned down-mixing processing and analog-to-digital conversion processing The order of replacement processing is adjustable. The transmitter Tx can selectively perform one or more levels of upmixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or digital intermediate frequency signal to obtain a radio frequency signal. The upmixing processing and digital-to-analog conversion processing The order is adjustable. Digital baseband signals and digital intermediate frequency signals can be collectively referred to as digital signals.

It should be understood that the aforementioned transceiver 803 may also be called a transceiver unit, a transceiver, a transceiver device, etc. Optionally, the devices used to implement the receiving function in the transceiver unit can be regarded as the receiving unit, and the devices used in the transceiver unit used to implement the transmitting function can be regarded as the transmitting unit, that is, the transceiver unit includes a receiving unit and a transmitting unit, and the receiving unit also It can be called a receiver, input port, receiving circuit, etc., and the sending unit can be called a transmitter, transmitter, or transmitting circuit, etc.

In addition, the aforementioned processor 801 is mainly used to process communication protocols and communication data, control the entire network equipment, execute software programs, and process data of the software programs, for example, to support the communication device 80 to execute what is described in the previous embodiments. Actions. The communication device 80 may include a baseband processor and a central processor. The baseband processor is mainly used to process communication protocols and communication data. The central processor is mainly used to control the entire communication device 80, execute software programs, and process software. program data. As shown in Figure 8, the processor 801 can integrate the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit can also be independent processors, interconnected through technologies such as buses. Those skilled in the art can understand that the communication device 80 may include multiple baseband processors to adapt to different network standards, the communication device 80 may include multiple central processors to enhance its processing capabilities, and various components of the communication device 80 may be configured through various bus connection. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor, or can be stored in the memory in the form of a software program, and the processor executes the software program to implement the baseband processing function.

In addition, the aforementioned network interface 805 is used to connect the communication device 80 to other communication devices through communication links. Specifically, the network interface 805 may include a network interface between the communication device 80 and the core network element, such as the S1 interface; the network interface 805 may also include the communication device 80 and other network devices (such as other access network devices or core network devices). network interface between elements), such as X2 or Xn interface.

In a possible implementation, the communication device 80 is configured to perform the method in the corresponding embodiment of FIG. 2, FIG. 3A, FIG. 3B, FIG. 5A or FIG. 5B. Specifically, in the communication device 80, the processor 801 is used to determine the first information. The first information is used by the terminal device to determine whether to start a first timer corresponding to the transmission resource. The duration of the first timer is the retransmission schedule. The minimum interval or the maximum waiting time for receiving retransmission schedule. The transceiver 803 is used to send the first information.

In this embodiment, since the communication device 80 can send the first information to the terminal device for determining whether to start the first timer corresponding to the transmission resource, the terminal device can decide whether to perform data transmission on the transmission resource based on the first information. Start the first timer corresponding to the transmission resource, instead of starting the first timer after completing the data transmission on the transmission resource. Therefore, it is beneficial to flexibly control the terminal equipment to start the first timer at an appropriate time and enter the DRX activation state. In addition, when the first information indicates not to start the first timer, the terminal device does not need to enter the DRX activation state after receiving the first information. Therefore, it is beneficial to shorten the time the terminal device is in the DRX activation state and save the power of the terminal device. Consumption.

The time interval between the start position/end position of the transmission resource and the start position of the second timer next run by the terminal device is less than Or equal to the third threshold; or, the time interval between the start position/end position of the transmission resource and the end position of the second timer currently running on the terminal device is greater than or equal to the fourth threshold; or, the start position/end position of the transmission resource The time interval between the start position/end position and the start position of the second timer currently running on the terminal device is less than or equal to the fifth threshold; wherein the terminal device is in the DRX activation state when the second timer is running.

In another possible implementation, the first information includes a second sequence, the second sequence includes at least one bit, each of the bits corresponds to at least one HARQ process associated with the transmission resource configuration, and each of the bits is used for Indicates whether to start the first timer after at least one HARQ process performs data transmission on the associated transmission resource.

In addition, the first timer can be implemented in the following multiple ways:

It should be noted that the specific implementation manner and beneficial effects of this embodiment may refer to the method of accessing the network device in the above embodiment, and will not be described again here.

As shown in Figure 9, this application also provides a device 90. The device 90 may be a terminal device or an access network device, or may be a component (for example, an integrated circuit, a chip, etc.) of the terminal device or the access network device. The device 90 may also be other communication modules used to implement the methods in the method embodiments of this application.

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

In a possible design, one or more modules in Figure 9 may be implemented by one or more processors, or by one or more processors and memories; or by one or more processors and a transceiver; or may be implemented by one or more processors, memories, and transceivers, which are not limited in the embodiments of the present application. The processor, memory, and transceiver can be set individually, or they can Integrated into one.

The device 90 has the function of implementing the terminal equipment described in the embodiments of this application. For example, the apparatus 90 includes modules or units or means (means) corresponding to the terminal equipment executing the steps involved in the terminal equipment described in the embodiments of this application. The functions, units or means (means) can be implemented by software or hardware, The corresponding software implementation can also be executed through hardware, or it can also be implemented through a combination of software and hardware. For details, reference may be made to the corresponding descriptions in the foregoing corresponding method embodiments.

Alternatively, the device 90 has the function of implementing the access network equipment described in the embodiments of this application. For example, the apparatus 90 includes modules or units or means (means) corresponding to the access network equipment performing the steps involved in the access network equipment described in the embodiments of this application. The functions, units or means (means) can be implemented through software. , or it can be implemented through hardware, it can also be implemented through hardware to execute corresponding software, or it can also be implemented through a combination of software and hardware. For details, reference may be made to the corresponding descriptions in the foregoing corresponding method embodiments.

Optionally, each module in the device 90 in the embodiment of the present application can be used to perform the method described in Figure 2, Figure 3A, Figure 3B, Figure 5A or Figure 5B in the embodiment of the present application.

In a possible design, when the communication device 90 executes a method corresponding to the terminal device, the interface module 902 in the communication device 90 is used to receive the first information. The processing module 901 is used to determine whether to start the first timer based on the first information. The processing module 901 is also configured to not start the first timer corresponding to the transmission resource after data transmission on the transmission resource when it is determined not to start the first timer corresponding to the transmission resource based on the first information; or, When it is determined to start the first timer corresponding to the transmission resource based on the first information, the first timer corresponding to the transmission resource is started after data transmission is performed on the transmission resource. The duration of the first timer is the minimum interval of the retransmission schedule or the maximum waiting time for receiving the retransmission schedule.

In a possible implementation, the first information indicates a threshold, and the threshold corresponds to a preset condition. The processing module 901 is specifically configured 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; wherein the preset condition satisfies the starting position of the transmission resource. Or the time interval between the end position and the next time the terminal device enters the DRX activation state is less than or equal to the threshold, and/or, the preset condition satisfies the start position or end position of the transmission resource and the distance between the terminal device exiting the DRX activation state in the current DRX cycle. The duration interval is greater than or equal to the threshold.

In addition, the first timer in the communication device 90 may have the following various implementation modes:

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

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

In a 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 not start the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource when the first information indicates not to start the drx-HARQ-RTT-TimerDL; or, when the When the first information indicates starting the drx-HARQ-RTT-TimerDL, start the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource.

In a possible implementation, the first timer is drx-RetransmissionTimerUL. The processing module 901 is specifically configured to not start drx-RetransmissionTimerUL when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out when the first information indicates not to start the drx-RetransmissionTimerUL; or, when the first information indicates not to start the drx-RetransmissionTimerUL When instructed to start the drx-RetransmissionTimerUL, drx-RetransmissionTimerUL is started when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out.

In a possible implementation, the first timer is drx-RetransmissionTimerDL. The processing module 901 is specifically configured to not start the drx-RetransmissionTimerDL when the drx-HARQ-RTT-TimerDL times out when the first information indicates not to start the drx-RetransmissionTimerDL; or, when the first information indicates to start the drx- During RetransmissionTimerDL, drx-RetransmissionTimerDL is started when drx-HARQ-RTT-TimerDL times out.

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

The processing module 901 is used to determine the first information. The first information is used by the terminal device to determine whether to start the first timer corresponding to the transmission resource. The duration of the first timer is the minimum interval of the retransmission schedule or the minimum interval of receiving the retransmission schedule. Maximum waiting time. The interface module 902 is used to send the first information.

In addition, the first timer can be implemented in the following multiple ways:

In addition, the present application provides a computer program product, which includes one or more computer instructions. When computer program instructions are loaded and executed on a computer, processes or functions according to embodiments of the present application are generated in whole or in part. For example, the method related to the terminal device in the aforementioned Figure 2, Figure 3A, Figure 3B, Figure 5A or Figure 5B is implemented. For another example, implement the method related to the access network equipment in the aforementioned FIG. 2, FIG. 3A, FIG. 3B, FIG. 5A or FIG. 5B. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, e.g., computer instructions may be transmitted from a website, computer, server or data center via a wired link (e.g. , coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to transmit to another website, computer, server or data center. Computer-readable storage media can be any available media that a computer can store, or a data storage device such as a server or data center integrated with one or more available media. Available media may be magnetic media (for example, floppy disks, hard disks, tapes), optical media (for example, digital versatile disc (DVD)), or semiconductor media (for example, solid state disk (SSD)), etc. .

In addition, this application also provides a computer-readable storage medium. The storage medium stores a computer program. The computer program is executed by the processor to implement the terminal device as shown in FIG. 2, FIG. 3A, FIG. 3B, FIG. 5A or FIG. 5B. Related methods; or, execute to implement methods related to the access network equipment in the aforementioned Figure 2, Figure 3A, Figure 3B, Figure 5A or Figure 5B.

It should be understood that in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation. In addition, each of the above method embodiments can be implemented individually or in combination. Terms and related technologies involved in various embodiments may be referred to each other. That is to say, technical solutions that are not inconsistent or logically conflicting between different embodiments can be combined with each other, and are not specifically limited in this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

Claims

A communication method, characterized by including:

receive the first message;

When it is determined not to start the first timer corresponding to the transmission resource based on the first information, the first timer corresponding to the transmission resource is not started after data transmission on the transmission resource; When a message determines to start the first timer corresponding to the transmission resource, start the first timer corresponding to the transmission resource after data transmission is performed on the transmission resource;

Wherein, the duration of the first timer is the minimum interval of the retransmission schedule or the maximum waiting time for receiving the retransmission schedule.
The method according to claim 1, characterized in that the first information indicates a threshold, and the threshold corresponds to a preset condition;

When it is determined 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 on the transmission resource includes:

When at least one of the preset conditions is met, it is determined not to start the first timer after data transmission on the transmission resource;

Wherein, the preset condition satisfies that the time interval between the start position or the end position of the transmission resource and the next time the terminal device enters the discontinuous reception DRX activation state is less than or equal to a threshold, and/or the preset condition satisfies all The time interval between the start position or the end position of the transmission resource and the time the terminal device exits the DRX activation state in the current DRX cycle is greater than or equal to the threshold.
The method according to claim 2, characterized in that the preset conditions satisfy at least one of the following:

The time interval between the start position/end position of the transmission resource and the start moment of the next DRX cycle is less than or equal to the first threshold; or,

The time interval between the start position/end position of the transmission resource and the start moment of the current DRX cycle is less than or equal to the second threshold.
The method according to claim 2, characterized in that the preset conditions satisfy at least one of the following:

The time interval between the start position/end position of the transmission resource and the start position of the second timer next run by the terminal device is less than or equal to the third threshold; or,

The time interval between the start position/end position of the transmission resource and the end position of the second timer currently running on the terminal device is greater than or equal to the fourth threshold; or,

The time interval between the start position/end position of the transmission resource and the start position of the second timer currently running on the terminal device is less than or equal to the fifth threshold;

Wherein, the terminal device is in a DRX activated state when the second timer is running.
The method according to claim 2, characterized in that the preset conditions satisfy at least one of the following:

The time interval between the start position/end position of the transmission resource and the start moment of the next DRX activation time is less than or equal to the sixth threshold; or,

The start position/end position of the transmission resource is at the DRX activation time and the time interval from the end of the current DRX activation time is greater than or equal to the seventh threshold; or,

The start position/end position of the transmission resource is at the DRX activation time and the time interval from the start time of the current DRX activation time is less than or equal to the eighth threshold.
The method of claim 1, wherein the first information includes a first sequence, the first sequence includes at least one bit, each of the bits corresponds to at least one transmission resource, and each of the bits Used to indicate whether the corresponding at least one transmission resource starts the first timer after data transmission.
The method of claim 1, wherein the first information includes a second sequence, the second sequence includes at least one bit, each of the bits is associated with at least one hybrid automatic repeat transmission of a transmission resource configuration. Corresponding to the requested HARQ process, each bit is used to indicate whether to start the first timer after at least one HARQ process performs data transmission on the associated transmission resource.
The method according to any one of claims 1 to 7, characterized in that the duration of the first timer is the minimum interval of retransmission scheduling, and the first timer is drx-HARQ-RTT-TimerUL or drx-HARQ-RTT-TimerDL.
The method according to claim 8, characterized in that the transmission resource is a physical layer uplink shared channel PUSCH resource, and the first timer is drx-HARQ-RTT-TimerUL;

When it is determined 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 on the transmission resource includes:

When the first information indicates not to activate the drx-HARQ-RTT-TimerUL, the uplink data is sent on the PUSCH resource. The drx-HARQ-RTT-TimerUL is not started afterwards;

or,

When it is determined to start the first timer corresponding to the transmission resource based on the first information, starting the first timer corresponding to the transmission resource after performing data transmission on the transmission resource includes:

When the first information indicates starting the drx-HARQ-RTT-TimerUL, the drx-HARQ-RTT-TimerUL is started after sending uplink data on the PUSCH resource.
The method according to claim 8, characterized in that the transmission resource is a physical layer downlink shared channel PDSCH resource, and the first timer is drx-HARQ-RTT-TimerDL;

When it is determined 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 on the transmission resource includes:

When the first information indicates not to start the drx-HARQ-RTT-TimerDL, do not start the drx-HARQ-RTT-TimerDL after receiving downlink data on the PDSCH resource;

or,

When it is determined to start the first timer corresponding to the transmission resource based on the first information, starting the first timer corresponding to the transmission resource after performing data transmission on the transmission resource includes:

When the first information indicates starting the drx-HARQ-RTT-TimerDL, the drx-HARQ-RTT-TimerDL is started after receiving downlink data on the PDSCH resource.
The method according to any one of claims 1 to 7, characterized in that the duration of the first timer is the maximum waiting duration for receiving retransmission scheduling, and the first timer is drx-RetransmissionTimerUL or drx- RetransmissionTimerDL.
The method according to claim 11, characterized in that the first timer is drx-RetransmissionTimerUL;

When it is determined 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 on the transmission resource includes:

When the first information indicates not to start the drx-RetransmissionTimerUL, do not start the drx-RetransmissionTimerUL when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out;

or,

When it is determined to start the first timer corresponding to the transmission resource based on the first information, starting the first timer corresponding to the transmission resource after performing data transmission on the transmission resource includes:

When the first information indicates starting the drx-RetransmissionTimerUL, drx-RetransmissionTimerUL is started when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out.
The method according to claim 11, characterized in that the first timer is drx-RetransmissionTimerDL;

When it is determined 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 on the transmission resource includes:

When the first information indicates not to start the drx-RetransmissionTimerDL, do not start the drx-RetransmissionTimerDL when the drx-HARQ-RTT-TimerDL times out;

or,

When it is determined to start the first timer corresponding to the transmission resource based on the first information, starting the first timer corresponding to the transmission resource after performing data transmission on the transmission resource includes:

When the first information indicates starting the drx-RetransmissionTimerDL, drx-RetransmissionTimerDL is started when the drx-HARQ-RTT-TimerDL times out.
The method according to any one of claims 1 to 13, characterized in that the first information is carried in the transmission resource configuration corresponding to the transmission resource; or, the first information is carried in the transmission resource configuration used to activate the transmission resource. The activation of the above transmission resources is included in the downlink control information DCI.
A communication method, characterized by including:

Send first information, the first information indicating whether to start a first timer corresponding to the transmission resource, where the duration of the first timer is the minimum interval of the retransmission schedule or the maximum waiting time for receiving the retransmission schedule.
The method according to claim 15, characterized in that when the first information indicates not to start the first timer corresponding to the transmission resource; the first timer corresponding to the transmission resource is in the Data transmission on the above transmission resource is not started after transmission.
The method according to claim 15, characterized in that when the first information indicates starting the first timer corresponding to the transmission resource; the first timer corresponding to the transmission resource is in the After data transfer on the transfer resource is initiated.
The method of claim 15, wherein the first information indicates a threshold, the threshold corresponds to a preset condition, and the first information is used to determine when at least one of the preset conditions is met. The first timer is not started after data transmission on the transmission resource;

Wherein, the preset condition satisfies that the time interval between the start position or the end position of the transmission resource and the next time the terminal device enters the discontinuous reception DRX activation state is less than or equal to a threshold, and/or the preset condition satisfies all The time interval between the start position or the end position of the transmission resource and the time the terminal device exits the DRX activation state in the current DRX cycle is greater than or equal to the threshold.
The method according to claim 18, characterized in that the preset conditions satisfy at least one of the following:

The time interval between the start position/end position of the transmission resource and the start moment of the next DRX cycle is less than or equal to the first threshold; or,

The time interval between the start position/end position of the transmission resource and the start moment of the current DRX cycle is less than or equal to the second threshold.
The method according to claim 18, characterized in that the preset conditions satisfy at least one of the following:

The time interval between the start position/end position of the transmission resource and the start position of the second timer next run by the terminal device is less than or equal to the third threshold; or,

The time interval between the start position/end position of the transmission resource and the end position of the second timer currently running on the terminal device is greater than or equal to the fourth threshold; or,

The time interval between the start position/end position of the transmission resource and the start position of the second timer currently running on the terminal device is less than or equal to the fifth threshold;

Wherein, the terminal device is in a DRX activated state when the second timer is running.
The method according to claim 18, characterized in that the preset conditions satisfy at least one of the following:

The time interval between the start position/end position of the transmission resource and the start moment of the next DRX activation time is less than or equal to the sixth threshold; or,

The start position/end position of the transmission resource is at the DRX activation time and the time interval from the end of the current DRX activation time is greater than or equal to the seventh threshold; or,

The start position/end position of the transmission resource is at the DRX activation time and the time interval from the start time of the current DRX activation time is less than or equal to the eighth threshold.
The method of claim 15, wherein the first information includes a first sequence, the first sequence includes at least one bit, each of the bits corresponds to at least one transmission resource, and each of the bits Used to indicate whether the corresponding at least one transmission resource starts the first timer after data transmission.
The method of claim 15, wherein the first information includes a second sequence, the second sequence includes at least one bit, each of the bits is associated with at least one hybrid automatic repeat transmission of a transmission resource configuration. Corresponding to the requested HARQ process, each bit is used to indicate whether to start the first timer after at least one HARQ process performs data transmission on the associated transmission resource.
The method according to any one of claims 15 to 23, characterized in that the duration of the first timer is the minimum interval of retransmission scheduling, and the first timer is drx-HARQ-RTT-TimerUL or drx-HARQ-RTT-TimerDL.
The method according to claim 24, characterized in that the transmission resource is a physical layer uplink shared channel PUSCH resource, and the first timer is drx-HARQ-RTT-TimerUL;

The first information is used by 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 by the terminal equipment when the PUSCH resource is used. The drx-HARQ-RTT-TimerUL is started after sending uplink data on the resource.
The method according to claim 24, characterized in that 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 by 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 by the terminal equipment when the terminal equipment receives downlink data on the PDSCH resource. The drx-HARQ-RTT-TimerDL is started after receiving downlink data on the resource.
The method according to any one of claims 15 to 23, characterized in that the duration of the first timer is to receive retransmission adjustment. The maximum waiting time of the degree, the first timer is drx-RetransmissionTimerUL or drx-RetransmissionTimerDL.
The method according to claim 27, characterized in that the first timer is drx-RetransmissionTimerUL;

The first information is used by the terminal device not to start drx-RetransmissionTimerUL when the drx-HARQ-RTT-TimerUL corresponding to the transmission resource times out; or, the first information is used by the terminal device when the transmission resource times out; drx-RetransmissionTimerUL is started when the drx-HARQ-RTT-TimerUL corresponding to the resource times out.
The method according to claim 27, characterized in that the first timer is drx-RetransmissionTimerDL;

The first information is used for the terminal device not to start drx-RetransmissionTimerDL when drx-HARQ-RTT-TimerDL times out; or, the first information is used for the terminal device when drx-HARQ-RTT-TimerDL times out. Start drx-RetransmissionTimerDL.
The method according to any one of claims 15 to 29, characterized in that the first information is carried in the transmission resource configuration corresponding to the transmission resource; or, the first information is carried in the transmission resource configuration used to activate the transmission resource. The activation of the above transmission resources is included in the downlink control information DCI.
A communication device, characterized by including a processor and a memory;

Among them, the memory stores a computer program;

The processor calls the computer program to cause the communication device to perform the method as described in any one of claims 1 to 14; or, to perform the method as described in any one of claims 15 to 30.
A computer-readable storage medium storing instructions that, when run on a computer, cause the computer to perform the method as claimed in any one of claims 1 to 14; or, to perform the method as claimed in any one of claims 15 to 30 any of the methods described.