CN113597796B

CN113597796B - Communication method, device and equipment

Info

Publication number: CN113597796B
Application number: CN201980094344.4A
Authority: CN
Inventors: 尤心
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2023-09-19
Anticipated expiration: 2039-08-06
Also published as: CN113597796A; WO2021022494A1

Abstract

The embodiment of the application provides a communication method, a device and equipment, wherein the method comprises the following steps: the method comprises the steps that a terminal device obtains first information corresponding to discontinuous reception hybrid automatic repeat request (DRX-HARQ-RTT) timers, wherein the first information is obtained by determining according to motion information of the terminal device and motion information of network devices; and the terminal equipment adjusts the drx-HARQ-RTT timer of the terminal equipment according to the first information. The power consumption of the terminal equipment is lower, and the scheduling performance of the network equipment to the terminal equipment is higher.

Description

Communication method, device and equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communications method, apparatus, and device.

Background

A Non-terrestrial communication network (Non-Terrestrial Network, NTN) refers to a communication network between terminal devices and satellites (which may also be referred to as network devices).

In the practical application process, in order to reduce the power consumption of the terminal device, the terminal device may discontinuously monitor the physical downlink control channel (Physical Downlink Control Channel, PDCCH). Currently, a discontinuous reception (Discontinuous Reception, DRX) -hybrid automatic repeat (Hybrid Automatic Repeat Request, HARQ) -Round Trip Time (RTT) timer is typically configured for the terminal device by the network device, and the terminal device does not listen to the PDCCH during operation of the DRX-HARQ-RTT timer.

However, in the NTN system, if the configured drx-HARQ-RTT timer is shorter than the round trip transmission time signal transmission delay of the network device to the terminal device, the terminal device may start to monitor the PDCCH for scheduling retransmission prematurely, which increases the terminal energy consumption; if the configured drx-HARQ-RTT timer is longer than the round trip transmission time signal transmission delay of the network device to the terminal device, the terminal device starts to monitor the PDCCH of the scheduled retransmission too late, which may cause the terminal device to miss the PDCCH, thereby affecting the scheduling performance

Disclosure of Invention

The embodiment of the application provides a communication method, which enables the power consumption of terminal equipment to be lower and the scheduling performance of network equipment to the terminal equipment to be higher.

In a first aspect, an embodiment of the present application provides a communication method, including:

the method comprises the steps that a terminal device obtains first information corresponding to discontinuous reception hybrid automatic repeat request (DRX-HARQ-RTT) timer, wherein the first information is obtained by determining the motion information of the terminal device and the motion information of a network device according to the motion information of the terminal device or the motion information of the network device;

and the terminal equipment adjusts a drx-HARQ-RTT timer of the terminal equipment according to the first information.

In a second aspect, an embodiment of the present application provides a communication method, including:

the network equipment acquires information to be transmitted;

the network equipment sends the information to be sent to the terminal equipment;

the information to be sent is motion information of the network device, or the information to be sent is first information corresponding to discontinuous reception hybrid automatic repeat-round trip transmission time drx-HARQ-RTT timer, which is determined by the network device according to the motion information of the terminal device and the motion information of the network device.

In a third aspect, an embodiment of the present application provides a communication apparatus, including: a processing module, wherein,

the processing module is used for acquiring first information corresponding to a discontinuous reception hybrid automatic repeat request transmission time drx-HARQ-RTT timer, wherein the first information is determined and obtained by the terminal equipment or the network equipment according to the motion information of the terminal equipment and the motion information of the network equipment;

the processing module is further configured to adjust a drx-HARQ-RTT timer of the terminal device according to the first information.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, including: a transmitting module, wherein,

The sending module is used for sending information to be sent to the terminal equipment;

In a fifth aspect, an embodiment of the present application provides a terminal device, including: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory causes the processor to perform the communication method according to any one of the first aspects.

In a sixth aspect, an embodiment of the present application provides a network device, including: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory causes the processor to perform the communication method of any of the second aspects.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored, where the computer-executable instructions, when executed by a processor, are configured to implement the communication method according to any one of the first aspects.

In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored, where the computer-executable instructions, when executed by a processor, are configured to implement the communication method according to any one of the second aspects.

According to the communication method, the device and the equipment provided by the embodiment of the application, the terminal equipment firstly acquires the first information corresponding to the drx-HARQ-RTT timer, and then adjusts the drx-HARQ-RTT timer according to the first information. Because the first information is related to the motion information of the terminal equipment and the network equipment, the drx-HARQ-RTT timer of the terminal equipment can be accurately adjusted according to the first information, so that the time length of the terminal equipment which does not monitor the PDCCH is matched with the signal transmission time delay between the terminal equipment and the network equipment, the problem that the power consumption of the terminal is higher because the time length of the terminal equipment which does not monitor the PDCCH is smaller than the signal transmission time length is solved, the problem that the power consumption of the terminal equipment is lower and the scheduling performance of the network equipment on the terminal equipment is higher because the time length of the terminal equipment which does not monitor the PDCCH is longer than the signal transmission time length is solved.

Drawings

Fig. 1 is a schematic diagram of a communication scenario provided in an embodiment of the present application;

fig. 2 is a schematic diagram of a DRX cycle according to an embodiment of the present application;

fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 4 is a schematic diagram of an adjustment drx-HARQ-RTT timer according to an embodiment of the present application;

fig. 5 is a schematic diagram of another embodiment of adjusting a drx-HARQ-RTT timer according to the present application;

fig. 6 is a flow chart of another communication method according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a communication process according to an embodiment of the present application;

fig. 8 is a flow chart of another communication method according to an embodiment of the present application;

FIG. 9 is a schematic diagram of another communication process according to an embodiment of the present application;

fig. 10 is a flow chart of another communication method according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a communication process according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of another communication device according to an embodiment of the present application;

Fig. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

For ease of understanding, first, the concepts related to the present application will be described.

Terminal equipment: is a device with wireless receiving and transmitting function. The terminal device may be deployed on land, including indoors or outdoors, hand-held, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.). The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a vehicle-mounted terminal device, a wireless terminal in unmanned driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a wearable terminal device, or the like. The terminal device according to the embodiments of the present application may also be referred to as a terminal, a User Equipment (UE), an access terminal device, a vehicle terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus, etc. The terminal device may also be fixed or mobile.

Network equipment: is an aerial deployed device with wireless transceiver functions. The network device may have a mobile nature, i.e. the network device may be a mobile device. For example, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite, or the like. For example, LEO satellites typically have an orbital altitude ranging from 500km to 1500km, and an orbital period (period of rotation around the earth) ranging from about 1.5 hours to 2 hours. The signal propagation delay of the single-hop communication between users is about 20ms, and the single-hop communication delay between users refers to the transmission delay between terminal equipment and network equipment or the delay between network equipment and transmission equipment. The maximum satellite visibility time, which is the maximum time that the satellite beam covers a certain area of the ground, is about 20 minutes, and the LEO satellite is moving relative to the ground, and the area of the ground that it covers varies as the satellite moves. The LEO satellite has short signal propagation distance, less link loss and low requirement on the transmitting power of terminal equipment. The orbit height of GEO satellites is typically 35786km with an orbit period of 24 hours. The signal propagation delay for single hop communication between users is about 250ms. To ensure coverage of the satellites and to increase the system capacity of the communication network, the satellites may cover the ground with multiple beams, for example, one satellite may form tens or hundreds of beams to cover the ground, and one beam may cover a ground area with a diameter of tens to hundreds of kilometers.

Next, a scene to which the communication method of the present application is applied will be described with reference to fig. 1.

Fig. 1 is a schematic diagram of a communication scenario provided in an embodiment of the present application. Referring to fig. 1, the network device 101 and the terminal device 102 are included, and wireless communication is possible between the network device 101 and the terminal device 102. The network comprising network device 101 and terminal device 102 may also be referred to as NTN.

In the actual application process, in order to reduce the power consumption of the terminal device, the terminal device may discontinuously monitor the PDCCH. A DRX cycle (DRX cycle) may be preset by the network device, one DRX cycle including an active period (On Duration) and an inactive period. The terminal device monitors the PDCCH in the activation period, and the terminal device does not monitor the PDCCH in the non-activation period. Next, a DRX cycle will be described with reference to fig. 2. Fig. 2 is a schematic diagram of a DRX cycle according to an embodiment of the present application. Referring to fig. 2, the drx cycle includes an active period and an inactive period.

The network device may configure DRX configuration parameters for the terminal device, and the terminal device may monitor the PDCCH according to the DRX configuration parameters discontinuously. The DRX configuration parameters may include one or more of the following:

drx duration timer (drx-on Duration Timer): refers to a period of time that continues at the beginning of the DRX cycle. A DRX duration timer is started at a DRX start time offset after the start of a DRX cycle. For example, the terminal device may determine the time to start the DRX duration timer according to the currently used DRX cycle (DRX short cycle or DRX long cycle). For example, if the DRX cycle currently used by the terminal device is a short cycle, and the current subframe satisfies: [ (sfn×10) +subframe identification (subframe number) ]% DRX short period = DRX start time offset% DRX short period, then a DRX duration timer is started. If the DRX cycle currently used by the terminal device is a long cycle, and the current subframe satisfies: when [ (sfn×10) +subframe identification ]% DRX long cycle=drx start time offset, then a DRX duration timer is started. A drx duration timer is started at a time instant after a drx slot offset (drx-SlotOffset) of the beginning of the current subframe.

drx Slot Offset (drx-Slot Offset): refers to the time delay of starting a drx duration timer in a subframe from the start time of the subframe.

Drx Inactivity Timer (Drx-Inactivity Timer): refers to a period of time that lasts after receiving a PDCCH indicating uplink scheduling or downlink scheduling. If the terminal equipment receives a PDCCH indicating the initial downlink or uplink transmission, the terminal starts or restarts the drx inactivity timer.

Downlink (DL) drx hybrid automatic repeat request (hybrid automatic repeat request, HARQ) Round Trip Time (RTT) Timer (drx-HARQ-RTT-Timer DL): refers to the shortest time period waiting before downlink HARQ retransmission. And one downlink HARQ process corresponds to one downlink drx-HARQ-RTT timer except the broadcasting process. If the terminal device receives a PDCCH indicating downlink transmission, or if the terminal device receives a medium access control (media access control, MAC) protocol data unit (protocol data unit, PDU) on the configured downlink grant resource, the terminal starts a downlink drx-HARQ-RTT timer corresponding to the HARQ process after completing the transmission fed back for the HARQ process of this downlink transmission, and simultaneously stops a downlink drx retransmission timer corresponding to the HARQ process.

Starting time offset of downlink drx-HARQ-RTT timer: refers to a period of time that is offset before the downlink drx-HARQ-RTT timer starts. The starting time offset of the downlink drx-HARQ-RTT timer is typically a positive number, i.e. the starting of the downlink drx-HARQ-RTT timer is delayed.

Uplink (UL) drx-HARQ-RTT Timer (drx-HARQ-RTT-Timer UL): refers to the shortest duration waiting before uplink HARQ retransmissions. One uplink HARQ process corresponds to one uplink drx-HARQ-RTT timer. If the terminal device receives a PDCCH indicating uplink transmission, or if the terminal sends a MAC PDU on the configured uplink grant resource, the terminal starts an uplink drx-HARQ-RTT timer corresponding to the HARQ process after completing the uplink transmission, and simultaneously stops an uplink drx retransmission timer (drx-Retransmission Timer UL) corresponding to the HARQ process.

Starting time offset of uplink drx-HARQ-RTT timer: refers to a period of time that is offset before the uplink drx-HARQ-RTT timer starts. The starting time offset of the uplink drx-HARQ-RTT timer is typically a positive number, i.e. the start of the uplink drx-HARQ-RTT timer is delayed.

Downlink drx retransmission timer (drx-Retransmission Timer DL): refers to the longest duration of time that elapses before a downlink retransmission is received. Each downlink HARQ process corresponds to a drx downlink retransmission timer, except for the broadcast process. If a downlink drx-HARQ-RTT timer corresponding to a certain HARQ of the terminal equipment is overtime and the downlink data transmitted by using the HARQ process is unsuccessfully decoded, the terminal starts a downlink drx retransmission timer corresponding to the HARQ process.

Uplink drx retransmission timer (drx-Retransmission Timer UL): refers to the longest duration of time that lasts until an uplink retransmission is received. Each uplink HARQ process corresponds to a drx downlink retransmission timer. If the uplink drx-HARQ-RTT timer corresponding to a certain HARQ of the terminal equipment is overtime, the terminal starts the uplink drx retransmission timer corresponding to the HARQ process.

drx long cycle start time offset (drx-Long Cycle Start Offset): the long drx cycle and the drx long cycle start time offset define the subframes where the long drx cycle and the short drx cycle start.

drx Short Cycle (drx-Short Cycle): refers to a short drx cycle.

drx short cycle timer (drx-Short Cycle Timer): the duration of the short DRX cycle that the terminal device should follow.

In the practical application process, the DRX active period includes the following cases, namely, the active period of the DRX cycle in the following cases:

case 1: when any one of the following 5 timers is in an operation state, the 5 timers include: a drx duration timer, a drx inactivity timer, a downlink drx retransmission timer, an uplink drx retransmission timer, and a Random Access contention resolution timer (Random Access-Contention Resolution Timer).

Case 2: the terminal device sends a scheduling request (Scheduling Request, SR) on a physical uplink control channel (physical uplink control channel, PUCCH) and is in a waiting state.

Case 3: in the contention-based random access procedure, the terminal has not received one initial transmission of a cell radio network temporary identity (Cell Radio Network Temporary Identifier, C-RNTI) scrambled PDCCH indication after successful reception of the random access response.

In the practical application process, the terminal equipment does not monitor the PDCCH during the running period of the drx-HARQ-RTT timer (uplink drx-HARQ-RTT timer or downlink drx-HARQ-RTT timer) and the initial time offset period of the drx-HARQ-RTT timer (uplink drx-HARQ-RTT timer or downlink drx-HARQ-RTT timer). And after the timer is overtime, the terminal starts to monitor the uplink retransmission scheduling or determines whether to start monitoring the downlink retransmission scheduling according to the feedback condition. If any one of the 5 timers shown in the above case 1 is in an operation state and the drx-HARQ-RTT timer is also in an operation state at the same time, the terminal device listens to the PDCCH.

In the related technology, the terminal equipment does not monitor the PDCCH only during the running period of the drx-HARQ-RTT timer, the network equipment configures the timer length of the drx-HARQ-RTT timer for the terminal equipment, if the configured timer length of the drx-HARQ-RTT timer is smaller than the signal transmission delay, the terminal equipment can start to monitor the PDCCH for scheduling retransmission too early, and the energy consumption of the terminal equipment is increased; if the configured drx-HARQ-RTT timer is longer than the signal transmission delay, the terminal device starts to monitor the PDCCH for scheduling retransmission too late, which may cause the terminal device to miss the PDCCH, thereby affecting the scheduling performance.

In order to solve the above technical problems, the embodiments of the present application provide a communication method, which may determine, according to motion information of a terminal device and motion information of a network device, first information for adjusting a drx-HARQ-RTT timer of the terminal device, and because the first information is related to the motion information of the terminal device and the network device, the drx-HARQ-RTT timer of the terminal device may be accurately adjusted according to the first information, so that a duration of the terminal device that does not monitor a PDCCH is matched with a signal transmission delay between the terminal device and the network device, thereby reducing a problem of higher power consumption of the terminal due to a duration of the terminal device that does not monitor the PDCCH being less than a signal transmission duration, and reducing a problem of missed detection of the PDCCH due to a duration of the terminal device that does not monitor the PDCCH being greater than a signal transmission duration, so that power consumption of the terminal device is lower, and a performance of the network device for scheduling the terminal device is higher.

The "timer length" or "length of a timer" according to the present application has the same meaning, and is a duration of a specified timer, and "timer length" and "length of a timer" may also be referred to as "time window length of a timer", "duration of a timer", and so on. In other words, the timer times out after a certain period of time (the length of the timer) has elapsed after the timer is started.

The following describes the technical scheme shown in the present application in detail through specific embodiments. It should be noted that the following embodiments may exist independently or may be combined with each other, and for the same or similar content, the description will not be repeated in different embodiments.

Fig. 3 is a flow chart of a communication method according to an embodiment of the present application. Referring to fig. 3, the method may include:

s301, the terminal equipment acquires first information corresponding to a drx-HARQ-RTT timer.

The first information is determined by the terminal equipment or the network equipment according to the motion information of the terminal equipment and the motion information of the network equipment.

The drx-HARQ-RTT timer may include one or more of an uplink drx-HARQ-RTT timer or a downlink drx-HARQ-RTT timer. If the drx-HARQ-RTT timer includes an uplink drx-HARQ-RTT timer and a downlink drx-HARQ-RTT timer, the terminal device may obtain first information corresponding to the uplink drx-HARQ-RTT timer and first information corresponding to the downlink drx-HARQ-RTT timer, respectively.

In the actual application process, the first information is sent to the terminal equipment by the network equipment, in other words, the network equipment determines the first information according to the motion information of the terminal equipment and the motion information of the network equipment, and sends the first information to the terminal equipment. Alternatively, the first information is determined by the terminal device according to the motion information of the terminal device and the motion information of the network device, in other words, the first information is determined by the terminal device according to the motion information of the terminal device and the motion information of the network device. Alternatively, a part of the first information is sent by the network device to the terminal device, and the other part of the first information is determined by the terminal device according to the motion information of the terminal device and the motion information of the network device, in other words, the terminal device may receive a part of information from the network device, and the terminal device may determine another part of information according to the motion information of the terminal device and the motion information of the network device, where the first information includes the part of information and the another part of information. For example, a portion of the information may be a first timer length and another portion of the information may be first adjustment information.

The movement information of the terminal device includes a movement speed and a movement direction of the terminal device within a first preset period. The movement information of the network device includes a movement speed and a movement direction of the network device within a second preset period. The first preset period and the second preset period are respectively one period before the current time, and the first preset period and the second preset period can be the same.

The first information may comprise a first timer length and/or first adjustment information, or the first information may comprise a first start time offset and/or second adjustment information. When the contents included in the first information are different, a procedure of determining the first information according to the movement information of the terminal device and the movement information of the network device is also different, and hereinafter, a procedure of determining the first information when the different contents are included in the first information is described, respectively.

One possible implementation: the first information includes a first timer length and/or first adjustment information.

Wherein the first adjustment information includes a first adjustment period and a first adjustment step size. The first adjustment period is a period for adjusting the timer length of the drx-HARQ-RTT timer, i.e., the timer length of the drx-HARQ-RTT timer is adjusted according to the first adjustment period. The first adjustment step length is a step length for adjusting the timer length of the drx-HARQ-RTT timer, i.e. the timer length of the drx-HARQ-RTT timer is adjusted according to the first adjustment step length.

In this possible implementation manner, the distance change condition between the terminal device and the network device may be determined according to the motion information of the terminal device and the motion information of the network device, where the distance change condition between the terminal device and the network device is: distance is unchanged, distance increases and distance decreases.

If the distance between the terminal device and the network device is unchanged, the signal transmission delay between the terminal device and the network device is unchanged, it can be determined that the first timer length can be the same as the current timer length, the first adjustment step length is 0, and the first adjustment period can be a preset maximum value.

If the distance between the terminal device and the network device becomes smaller, the signal transmission delay between the terminal device and the network device becomes smaller, and it may be determined that the first timer length is smaller than the current timer length, for example, a first correspondence between the distance between the terminal device and the network device and the timer length may be preset, and accordingly, the first timer length may be determined according to the distance between the terminal device and the network device and the first correspondence. The first adjustment step is a negative number, and may be determined according to the first timer length and the current timer length. If the distance between the terminal device and the network device is rapidly reduced, the first adjustment period is smaller, and if the distance between the terminal device and the network device is slowly reduced, the first adjustment period is larger, for example, a second correspondence between the distance change speed between the terminal device and the network device and the adjustment period may be preset, and accordingly, the first adjustment period may be determined according to the distance change speed between the terminal device and the network device and the second correspondence.

If the distance between the terminal equipment and the network equipment is increased, the signal transmission time delay between the terminal equipment and the network equipment is increased, it can be determined that the first timer length is greater than the current timer length, the first adjustment step length is a positive number, if the distance between the terminal equipment and the network equipment is increased rapidly, the first adjustment period is smaller, and if the distance between the terminal equipment and the network equipment is increased slowly, the first adjustment period is larger.

It should be noted that the above is merely illustrative of the manner of determining the first information according to the movement information of the terminal device and the movement information of the network device, and is not limited to the manner of determining the first information according to the movement information of the terminal device and the movement information of the network device.

Another possible implementation: the first information includes a first start time offset and/or second adjustment information.

Wherein the second adjustment information includes a second adjustment period and a second adjustment step size. The second adjustment period is a period for adjusting the initial time offset of the drx-HARQ-RTT timer, i.e., the initial time offset of the drx-HARQ-RTT timer is adjusted according to the first adjustment period. The second adjustment step length is a step length for adjusting the initial time offset of the drx-HARQ-RTT timer, namely, the initial time offset of the drx-HARQ-RTT timer is adjusted according to the second adjustment step length.

If the distance between the terminal device and the network device is unchanged, the signal transmission delay between the terminal device and the network device is unchanged, it can be determined that the first initial time offset can be the same as the current initial time offset, the second adjustment step length is 0, and the second adjustment period can be a preset maximum value.

If the distance between the terminal device and the network device becomes smaller, the signal transmission delay between the terminal device and the network device becomes smaller, and it can be determined that the first starting time offset is smaller than the current starting time offset. The first adjustment step is a negative number. If the distance between the terminal device and the network device is rapidly reduced, the second adjustment period is smaller, and if the distance between the terminal device and the network device is slowly reduced, the second adjustment period is larger.

If the distance between the terminal equipment and the network equipment is increased, the signal transmission time delay between the terminal equipment and the network equipment is increased, the first initial time offset can be determined to be larger than the current initial time offset, the first adjustment step length is a positive number, if the distance between the terminal equipment and the network equipment is increased rapidly, the second adjustment period is smaller, and if the distance between the terminal equipment and the network equipment is increased slowly, the second adjustment period is larger.

S302, the terminal equipment adjusts a drx-HARQ-RTT timer of the terminal equipment according to the first information.

When the first information includes different contents, the manner of adjusting the drx-HARQ-RTT timer of the terminal device according to the first information is also different, and hereinafter, the manner of adjusting the drx-HARQ-RTT timer of the terminal device according to the first information when the first information includes different contents will be described, respectively.

When the first information comprises the first timer length and/or the first adjustment information, the terminal equipment adjusts the length of the drx-HARQ-RTT timer of the terminal equipment according to the first information.

If the first information includes the first timer length, the terminal device adjusts the length of the drx-HARQ-RTT timer of the terminal device to the first timer length.

If the first information includes the first adjustment information, the terminal device periodically adjusts the current length of the drx-HARQ-RTT timer according to the first adjustment period through the first adjustment step length.

If the first information includes the first timer length and the first adjustment information, the terminal device adjusts the length of the drx-HARQ-RTT timer of the terminal device to the first timer length, and periodically adjusts the current length of the drx-HARQ-RTT timer according to the first adjustment period by the first adjustment step length.

Next, a description is given of such a possible implementation with reference to fig. 4.

Fig. 4 is a schematic diagram of an adjustment drx-HARQ-RTT timer according to an embodiment of the present application. Referring to fig. 4, assume that the current drx-HARQ-RTT timer of the terminal device starts at time t1, the timer length is t2-t1, and the timeout time of the drx-HARQ-RTT timer is t3, where the terminal device does not monitor the PDCCH between time t1 and time t 2. Assuming that the adjusted timer length t3-t1 and t3 of the drx-HARQ-RTT timer is greater than t2, after the timer length of the drx-HARQ-RTT timer is adjusted, the starting time of the drx-HARQ-RTT timer is still t1, and the timeout time is t3, where the terminal device does not monitor the PDCCH between the time t1 and the time t 3.

In this possible implementation manner, by changing the timer length of the drx-HARQ-RTT timer, it is achieved to change the duration that the terminal device does not monitor the PDCCH.

When the first information comprises the first timer starting time offset and/or the second adjustment information, the terminal equipment adjusts the starting time offset of the drx-HARQ-RTT timer of the terminal equipment according to the first information.

If the first information includes the first starting time offset, the terminal device adjusts the starting time offset of the drx-HARQ-RTT timer of the terminal device to the first starting time offset.

And if the first information comprises the second adjustment information, the terminal equipment periodically adjusts the current initial moment offset of the drx-HARQ-RTT timer through the second adjustment step length according to the second adjustment period.

If the first information includes the first starting time offset and/or the second adjustment information, the terminal device adjusts the starting time offset of the drx-HARQ-RTT timer of the terminal device to the first starting time offset, and periodically adjusts the current starting time offset of the drx-HARQ-RTT timer through a second adjustment step according to a second adjustment period.

Next, a description is given of such a possible implementation with reference to fig. 5.

Fig. 5 is a schematic diagram of another embodiment of adjusting a drx-HARQ-RTT timer according to the present application. Referring to fig. 5, assuming that the current starting time offset of the drx-HARQ-RTT timer of the terminal device is a starting time offset 1 and the initial starting time of the drx-HARQ-RTT timer is t1, after the time t1 passes the starting time offset 1, the drx-HARQ-RTT timer is started, in which case the terminal device does not monitor the PDCCH between the time t1 and the time t 3. Assuming that the initial time offset of the adjusted drx-HARQ-RTT timer is the initial time offset 2, since the initial start time of the drx-HARQ-RTT timer is t1, the drx-HARQ-RTT timer starts after the initial time offset 2 passes at the time t1, in which case the terminal device does not monitor the PDCCH between the time t1 and the time t 5.

In this possible implementation manner, by changing the starting time of the drx-HARQ-RTT timer, it is achieved to change the duration that the terminal device does not monitor the PDCCH.

According to the communication method provided by the embodiment of the application, the terminal equipment firstly acquires the first information corresponding to the drx-HARQ-RTT timer, and then adjusts the drx-HARQ-RTT timer according to the first information. Because the first information is related to the motion information of the terminal equipment and the network equipment, the drx-HARQ-RTT timer of the terminal equipment can be accurately adjusted according to the first information, so that the time length of the terminal equipment which does not monitor the PDCCH is matched with the signal transmission time delay between the terminal equipment and the network equipment, the problem that the power consumption of the terminal is higher because the time length of the terminal equipment which does not monitor the PDCCH is smaller than the signal transmission time length is solved, the problem that the power consumption of the terminal equipment is lower and the scheduling performance of the network equipment on the terminal equipment is higher because the time length of the terminal equipment which does not monitor the PDCCH is longer than the signal transmission time length is solved.

In the actual application process, when the content included in the first information is different or it is determined that the execution subject (network device or terminal device) of the first information is different, the communication process may be different, and several possible communication methods are described below with reference to fig. 6 to 11.

Next, a communication method will be described with reference to fig. 6, in the embodiment shown in fig. 6, the network device determines first information corresponding to the uplink drx-HARQ-RTT timer, where the first information includes a first timer length and first adjustment information, and the terminal device periodically adjusts the timer length of the uplink drx-HARQ-RTT timer according to the first information.

Fig. 6 is a flow chart of another communication method according to an embodiment of the present application. Referring to fig. 6, the method may include:

s601, the network equipment acquires motion information of the terminal equipment and motion information of the network equipment.

In one embodiment, the terminal device may send motion information of the terminal device to the network device.

In one embodiment, the embodiment shown in fig. 6 may be performed after the network device and the terminal device establish a radio resource control (radio resource control, RRC) connection.

S602, the network equipment determines first information corresponding to an uplink drx-HARQ-RTT timer of the terminal equipment according to the motion information of the terminal equipment and the motion information of the network equipment.

The first information comprises a first timer length and first adjustment information, and the first adjustment information comprises a first adjustment period and a first adjustment step length.

It should be noted that, the execution process of S602 may refer to the process of determining the first information described in S301, and will not be described herein.

And S603, the network equipment sends the first information to the terminal equipment.

In one embodiment, the network device may send the first information to the terminal device by:

one possible implementation:

the network device sends an RRC to the terminal device, the RRC signaling including the first information.

For example, the RRC signaling may be an RRC reconfiguration message.

Another possible implementation is:

the network device transmits a MAC Control Element (CE) to the terminal device, the MAC CE including the first information.

Yet another possible implementation is:

the network equipment sends a PDCCH indicating uplink scheduling to the terminal equipment, wherein the PDCCH indicating uplink scheduling comprises first information.

When the drx-HARQ-RTT timer is a downlink drx-HARQ-RTT timer, the network device sends a PDCCH indicating downlink scheduling to the terminal device, where the PDCCH indicating downlink scheduling includes first information.

In this possible implementation manner, the network device may implement sending the first information to the terminal device without sending additional signaling to the terminal device, so that signaling overhead is smaller.

S604, the terminal equipment adjusts the timer length of the uplink drx-HARQ-RTT timer to be a first timer length.

The terminal equipment locally stores the timer length of the uplink drx-HARQ-RTT timer, and the terminal equipment can directly modify the locally stored timer length of the uplink drx-HARQ-RTT timer into a first timer length.

It should be noted that, when the first information includes the first start time offset and the second adjustment information, the step may be replaced correspondingly: and the terminal equipment adjusts the initial time offset of the uplink drx-HARQ-RTT timer to be a first initial time offset.

S605, the terminal equipment periodically adjusts the timer length of the uplink drx-HARQ-RTT timer according to the first adjustment period and the first adjustment step length.

In one embodiment, after the terminal device adjusts the timer length of the uplink drx-HARQ-RTT timer to the first timer length, the terminal device updates the timer length of the uplink drx-HARQ-RTT timer to: the current timer length of the uplink drx-HARQ-RTT timer + the first adjustment step. After a first adjustment period, the terminal device updates the length of the uplink drx-HARQ-RTT timer to be: the current timer length of the uplink drx-HARQ-RTT timer + the first adjustment step. And so on.

In the practical application process, the motion conditions of the network device and the terminal device may change at any time, so, in order to make the time length of the terminal device without monitoring the PDCCH match with the signal transmission delay between the terminal device and the network device, the network device may periodically acquire the motion information of the terminal device and the motion information of the network device, determine new first information corresponding to the uplink drx-HARQ-RTT timer of the terminal device according to the motion information of the terminal device and the motion information of the network device, and send the new first information to the terminal device, so that the terminal device adjusts the timer length of the uplink drx-HARQ-RTT timer according to the new first information. In one embodiment, the new first information may include first adjustment information, or the new first information may include a first timer length and first adjustment information. The first timer length included in the new first information and the first timer length included in the first information in S602 may be different, and the first adjustment information included in the new first information and the first adjustment information included in the first information in S602 may be different. After the terminal equipment receives the new first information, the terminal equipment adjusts the timer length of the uplink drx-HARQ-RTT timer according to the new first information.

In an embodiment, if the new first information received by the terminal device includes the first timer duration and the first adjustment information, the terminal device may adjust the timer length of the uplink drx-HARQ-RTT timer according to the manner shown in S604-S605.

In one embodiment, if the new first information received by the terminal device includes the first adjustment information, the terminal device may determine the first time first, and adjust the timer length of the uplink drx-HARQ-RTT timer of the terminal device according to the new first information at the first time. The first time may be the time when the terminal device obtains the new first information, or the first time is the time after the second time, the time difference between the first time and the second time is the first adjustment period in the new first information, and the second time is the time when the terminal device last adjusts the length of the drx-HARQ-RTT timer or the initial time offset. If the time difference between the first time and the second time is larger than the first adjustment period in the new first information, the first time is the current time.

It should be noted that, when the first information includes the first start time offset and the second adjustment information, the step may be replaced correspondingly: and the terminal equipment periodically adjusts the initial time offset of the uplink drx-HARQ-RTT timer according to the second adjustment period and the second adjustment step length.

S606, the terminal equipment performs DRX operation according to the uplink DRX-HARQ-RTT timer.

The terminal equipment performs DRX operation according to the latest uplink DRX-HARQ-RTT timer.

The terminal device may perform uplink DRX operation according to the uplink DRX-HARQ-RTT timer, for example, after the terminal device completes the uplink transmission, the terminal device starts the uplink DRX-HARQ-RTT timer corresponding to the HARQ process, and stops the uplink DRX retransmission timer corresponding to the HARQ process, where the timer length of the uplink DRX-HARQ-RTT timer is the last updated timer length of the terminal device. When the uplink drx-HARQ-RTT timer is overtime, the terminal starts the uplink drx timer corresponding to the HARQ process.

The terminal device may perform downlink DRX operation according to the downlink DRX-HARQ-RTT timer, for example, after the terminal device completes the transmission fed back by the HARQ process for this downlink transmission, start the downlink DRX-HARQ-RTT timer corresponding to the HARQ process, and stop the downlink DRX retransmission timer corresponding to the HARQ process at the same time, where the timer length of the downlink DRX-HARQ-RTT timer is the last updated timer length of the terminal device. When the downlink drx-HARQ-RTT timer is overtime, if the terminal equipment does not successfully decode the downlink data transmitted by using the HARQ process, the terminal equipment starts a downlink drx retransmission timer corresponding to the HARQ process.

It should be noted that, when the first information includes the first start time offset and the second adjustment information, a communication process between the terminal device and the network device may be similar to that shown in fig. 6, and will not be described herein.

It should be noted that, for the downlink drx-HARQ-RTT timer, the communication process between the terminal device and the network device is similar to the communication process shown in fig. 6, and will not be described herein.

In the embodiment shown in fig. 6, the network device determines that the uplink drx-HARQ-RTT timer corresponds to first information according to the motion information of the terminal device and the motion information of the network device, and sends the first information to the terminal device, so that the terminal device adjusts the timer length of the uplink drx-HARQ-RTT timer according to the first information. Because the first information is related to the motion information of the terminal equipment and the network equipment, the terminal equipment can accurately adjust the length of the uplink drx-HARQ-RTT timer of the terminal equipment according to the first information. The first information further includes first adjustment information, so that the terminal device can periodically adjust the timer length of the uplink drx-HARQ-RTT timer according to the first adjustment information, that is, the network device sends the first information to the terminal device once, so that the terminal device can adjust the timer length of the uplink drx-HARQ-RTT timer for multiple times according to the first information, and signaling overhead is smaller.

Next, a detailed description will be given of the communication method shown in the embodiment of fig. 6 by way of a specific example with reference to fig. 7. Fig. 7 is a schematic diagram of a communication process according to an embodiment of the present application.

After the network device and the terminal device establish the RRC connection, the network device acquires motion information of the terminal device and the network device in a period of time before the current time, and determines first information corresponding to the uplink drx-HARQ-RTT timer according to the motion information, where the first information is assumed to include a first timer length L1, a first adjustment period T1, and a first adjustment step d1.

Referring to the timer length maintenance procedure in fig. 7, the timer length maintenance procedure of the terminal device for the uplink drx-HARQ-RTT timer is as follows:

the network device sends the first information to the terminal device at time t 1. After receiving the first information, the terminal device sets the timer length L of the uplink drx-HARQ-RTT timer to L1. At time T3 after the time T1 from time T1, the terminal device sets the timer length L of the uplink drx-HARQ-RTT timer to l1+d1, i.e. the current timer length L1 plus d1. At time T7 after the duration of T1 from time T3, the terminal device sets the timer length L of the uplink drx-HARQ-RTT timer to l1+2×d1, i.e. adds d1 to the current timer length l1+d1.

Assume that the network device determines, at time T9, to obtain new first information, where the new first information includes a first adjustment period T2 and a first adjustment step d2. At time T12 after the time T2 from time T7, the terminal device sets the timer length L of the uplink drx-HARQ-RTT timer to l1+2×d1+d2, i.e. adds d2 to the current timer length l1+2×d1. At time T16 after the time T2 from time T12, the terminal device sets the timer length L of the uplink drx-HARQ-RTT timer to l1+2×d1+2×d2, i.e. adds d2 to the current timer length l1+2×d1+d2. And so on.

Referring to the DRX procedure in fig. 7, the procedure of the terminal device performing DRX operation according to the DRX-HARQ-RTT timer is as follows:

assuming that the time t1 to the time t11 are one DRX cycle, the terminal device starts a DRX duration timer at the time t1, and the DRX duration timer times out at the time t 4.

Assuming that the terminal device receives the PDCCH1 sent by the network device at the time t2, the PDCCH1 indicates to schedule the initial transmission of the uplink HARQ ID1, and the terminal device starts a drx inactivity timer, where the drx inactivity timer times out at the time t 6.

Assuming that the terminal equipment completes uplink transmission of the HARQ ID1 at the time t5, the terminal equipment starts an uplink drx-HARQ-RTT timer corresponding to the HARQ ID1 at the time t5, and because the timer length of the uplink drx-HARQ-RTT timer at the time is L1+d1, the uplink drx-HARQ-RTT timer is in an operating state in the L1+d1 time after the time t5, and starts an uplink drx retransmission timer at the time t8 after the time L1+d1 time is passed from the time t 5.

Suppose that the terminal device receives PDCCH2 sent by the network device at time t10, where PDCCH2 indicates scheduling of retransmission of uplink HARQ ID 1. Assuming that the terminal equipment finishes retransmission at time t13, stopping an uplink drx retransmission timer at time t13, starting an uplink drx-HARQ-RTT timer corresponding to the HARQ ID1, and starting the uplink drx-HARQ-RTT timer corresponding to the HARQ ID1 at time t15 after the time of L1+2d1+d2 from time t13 because the timer length of the uplink drx-HARQ-RTT timer at the time is L1+2d1+d2, wherein the uplink drx-HARQ-RTT timer corresponding to the HARQ ID1 is in an operating state within the time of L1+2d1+d2 after the time t13, and starting the uplink drx retransmission timer after the time of L1+2d1+d2 from time t 15.

Assuming that the time t11 to the time t14 are one DRX cycle, the terminal device starts a DRX duration timer at the time t11, and the DRX duration timer times out at the time t 14.

Next, a communication method will be described with reference to fig. 8, in the embodiment shown in fig. 8, the network device determines first information corresponding to an uplink drx-HARQ-RTT timer of the terminal device, where the first information includes a first timer length, and the network device sends the first information to the terminal device through a PDCCH indicating uplink scheduling.

Fig. 8 is a flow chart of another communication method according to an embodiment of the present application. Referring to fig. 8, the method may include:

s801, the network equipment acquires motion information of the terminal equipment and motion information of the network equipment.

S802, the network equipment determines first information corresponding to an uplink drx-HARQ-RTT timer of the terminal equipment according to the motion information of the terminal equipment and the motion information of the network equipment.

Wherein the first information includes a first timer length.

It should be noted that, the execution process of S801-S802 may refer to the execution process of S601-S602, and will not be described herein.

S803, the network device sends the PDCCH indicating the uplink scheduling to the terminal device.

The PDCCH indicating uplink scheduling comprises first information.

For the first information corresponding to the downlink drx-HARQ-RTT timer, the network device sends a PDCCH indicating downlink scheduling to the terminal device, where the PDCCH indicating downlink scheduling includes the first information corresponding to the downlink drx-HARQ-RTT timer.

In the actual application process, when the network device sends the PDCCH indicating the uplink scheduling to the terminal device, the network device may not determine the new first information corresponding to the uplink drx-HARQ-RTT timer (i.e., the network device does not determine the first information corresponding to the uplink drx-HARQ-RTT timer between sending the PDCCH indicating the uplink scheduling and sending the PDCCH indicating the uplink scheduling this time), or the new first information corresponding to the uplink drx-HARQ-RTT timer determined by the network device is the same as the first information corresponding to the uplink drx-HARQ-RTT timer determined last time by the network device, and the network device may not carry the first information in the PDCCH when sending the PDCCH indicating the uplink scheduling this time. Correspondingly, when the PDCCH received by the terminal equipment and indicating the uplink scheduling does not include the first information, the terminal equipment may not adjust the timer length of the uplink drx-HARQ-RTT timer.

It should be noted that, similar to the PDCCH indicating uplink scheduling, the PDCCH indicating downlink scheduling sent by the network device to the terminal device may not include the first information corresponding to the downlink drx-HARQ-RTT timer, and accordingly, the terminal device may not adjust the timer length of the downlink drx-HARQ-RTT timer.

S804, the terminal equipment adjusts the timer length of the uplink drx-HARQ-RTT timer to be the first timer length.

It should be noted that, the execution process of S804 may refer to the execution process of S604, which is not described herein.

In the practical application process, the motion conditions of the network device and the terminal device may change at any time, so, in order to make the time length of the terminal device without monitoring the PDCCH match with the signal transmission delay between the terminal device and the network device, the network device may periodically acquire the motion information of the terminal device and the motion information of the network device, determine new first information corresponding to the uplink drx-HARQ-RTT timer of the terminal device according to the motion information of the terminal device and the motion information of the network device, and send the new first information to the terminal device, so that the terminal device adjusts the timer length of the uplink drx-HARQ-RTT timer according to the new first information. That is, the processes shown in S801 to S804 may be periodically performed.

S805, the terminal equipment performs DRX operation according to the uplink DRX-HARQ-RTT timer.

It should be noted that, the execution process of S805 may refer to the execution process of S606, which is not described herein.

It should be noted that, when the first information includes the first start time offset, a communication process between the terminal device and the network device may be similar to that shown in fig. 8, and will not be described herein.

It should be noted that, for the downlink drx-HARQ-RTT timer, the communication process between the terminal device and the network device is similar to the communication process shown in fig. 8, and will not be described herein.

In the embodiment shown in fig. 8, the network device determines first information corresponding to the uplink drx-HARQ-RTT timer according to the motion information of the terminal device and the motion information of the network device, and sends the first information to the terminal device through a PDCCH indicating uplink scheduling. Because the first information is related to the motion information of the terminal equipment and the network equipment, the terminal equipment can accurately adjust the length of the uplink drx-HARQ-RTT timer of the terminal equipment according to the first information. The network equipment sends the first information to the terminal equipment through the PDCCH indicating the scheduling, and the network equipment can send the first information to the terminal equipment without sending additional signaling to the terminal equipment, so that signaling overhead is smaller.

Next, a communication method shown in the embodiment of fig. 8 will be described in detail by way of a specific example with reference to fig. 9. Fig. 9 is a schematic diagram of another communication process according to an embodiment of the present application.

Assuming that the time t1 to the time t8 are one DRX cycle, the terminal device starts a DRX duration timer at the time t1, and the DRX duration timer times out at the time t 3.

Before the time t2, the network device acquires motion information of the terminal device and the network device in a period of time before the current time, determines first information corresponding to an uplink drx-HARQ-RTT timer according to the motion information, and presumes that the first information comprises a first timer length L1. The network device sends a PDCCH1 to the terminal device at a time t2, the PDCCH1 indicates to schedule the initial transmission of the uplink HARQ ID1, and the PDCCH1 comprises first information (the first information comprises L1), so that the terminal device starts a drx inactivity timer, and the drx inactivity timer is overtime at a time t 5.

Assuming that the terminal equipment completes uplink transmission of the HARQ ID1 at the time t4, the terminal equipment starts an uplink drx-HARQ-RTT timer corresponding to the HARQ ID1 at the time t4, and because the timer length of the uplink drx-HARQ-RTT timer at the moment is L1, the uplink drx-HARQ-RTT timer is in an operating state in the L1 time after the time t4, and at the time t6 after the L1 time is passed from the time t4, the uplink drx-HARQ-RTT timer corresponding to the HARQ ID1 is overtime, and starts an uplink drx retransmission timer.

Before the time t7, the network device acquires motion information of the terminal device and the network device in a period of time before the current time, determines first information corresponding to an uplink drx-HARQ-RTT timer according to the motion information, and presumes that the first information comprises a first timer length L2. The network device transmits a PDCCH2 to the terminal device at time t7, the PDCCH2 indicates to schedule retransmission of the uplink HARQ ID1, and the PDCCH2 includes first information (the first information includes L2). Assuming that the terminal equipment finishes retransmission at the time t9, stopping an uplink drx retransmission timer at the time t9, starting an uplink drx-HARQ-RTT timer corresponding to the HARQ ID1, and starting the uplink drx-HARQ-RTT timer corresponding to the HARQ ID1 when the uplink drx-HARQ-RTT timer corresponding to the HARQ ID1 is in an operating state within the L2 time after the time t9 and is overtime at the time t12 after the L2 time from the time t9 because the timer length of the uplink drx-HARQ-RTT timer at the moment is L2.

Assuming that the time t8 to the time t15 is one DRX cycle, the terminal device starts a DRX duration timer at the time t8, and the DRX duration timer times out at the time t 11.

Assuming that the terminal device receives the PDCCH3 sent by the network device at time t10, the PDCCH3 indicates the primary transmission of the HARQ ID2, and the PDCCH3 does not include the first information, the terminal device starts a drx inactivity timer, and the drx inactivity timer times out at time t 13.

Assuming that the terminal equipment completes uplink transmission of the HARQ ID2 at the time t14, the terminal equipment starts an uplink drx-HARQ-RTT timer corresponding to the HARQ ID2 at the time t14, and because the timer length of the uplink drx-HARQ-RTT timer at the time is L2, the uplink drx-HARQ-RTT timer is in an operating state in the L2 time after the time t14, and at the time t16 after the L2 time from the time t14, the uplink drx-HARQ-RTT timer corresponding to the HARQ ID2 is overtime, and starts an uplink drx retransmission timer.

Next, a communication method will be described with reference to fig. 10, in the embodiment shown in fig. 10, the terminal device determines first information corresponding to the uplink drx-HARQ-RTT timer, where the first information includes first adjustment information, and the terminal device periodically adjusts the timer length of the uplink drx-HARQ-RTT timer according to the first information.

Fig. 10 is a flow chart of another communication method according to an embodiment of the present application. Referring to fig. 10, the method may include:

s1001, the terminal equipment acquires a first timer length of an uplink drx-HARQ-RTT timer.

The terminal device may obtain the first timer length of the uplink drx-HARQ-RTT timer by using two possible implementations:

One possible implementation:

the terminal equipment receives RRC configuration information sent by the network equipment, and determines the timer length of an uplink drx-HARQ-RTT timer included in the RRC configuration information as the first timer length.

For example, other parameters may be included in the RRC configuration information, such as DRX cycle, DRX duration timer, DRX inactivity timer, uplink DRX-HARQ-RTT timer, downlink DRX-HARQ-RTT timer, uplink retransmission timer, downlink retransmission timer, etc.

In such a possible implementation, it can also be understood that: the first timer length is a portion of the first information. The terminal device receives a portion of the first information (first timer length) from the network device.

Another possible implementation is:

the terminal equipment acquires the motion information of the terminal equipment and the motion information of the network equipment, and determines the first timer length of the uplink drx-HARQ-RTT timer according to the motion information of the terminal equipment and the motion information of the network equipment. This process may refer to the process of determining the first information in S301, and will not be described herein.

S1002, the terminal equipment adjusts the timer length of the uplink drx-HARQ-RTT timer to be a first timer length.

S1003, the terminal equipment acquires the motion information of the terminal equipment and the motion information of the network equipment.

For example, the network device may send motion information of the network device to the terminal device.

For example, if the terminal device acquires the motion information of the network device in S1001, the terminal device may directly use the motion information of the network device acquired in S1001 in S1003, or the terminal device may acquire the motion information of the network device again.

S1004, the terminal equipment determines first information corresponding to an uplink drx-HARQ-RTT timer of the terminal equipment according to the motion information of the terminal equipment and the motion information of the network equipment.

The first information comprises first adjustment information, and the first adjustment information comprises a first adjustment period and a first adjustment step length.

In one embodiment, after the terminal device determines to obtain the first information, the terminal device may further send the first information to the network device, for example, the terminal device may send the first information to the network device through RRC signaling or MAC CE.

Note that, the execution process of S1003 may refer to the process of determining the first information described in S301, and will not be described herein.

S1005, the terminal equipment periodically adjusts the timer length of the uplink drx-HARQ-RTT timer according to the first adjustment period and the first adjustment step length.

S1006, the terminal equipment performs DRX operation according to the uplink DRX-HARQ-RTT timer.

It should be noted that, the execution process of S1004 to S1006 may refer to the process of S604 to S606, and will not be described herein.

It should be noted that, when the first information includes the first starting time offset, the procedure of adjusting the timer length of the uplink drx-HARQ-RTT timer by the terminal device is similar to the embodiment shown in fig. 10, and will not be described herein.

It should be noted that, for the downlink drx-HARQ-RTT timer, the process of adjusting the timer length of the uplink drx-HARQ-RTT timer by the terminal device is similar to the communication process shown in fig. 8, and will not be described herein.

In the embodiment shown in fig. 10, the terminal device determines that the uplink drx-HARQ-RTT timer corresponds to the first information according to the motion information of the terminal device and the motion information of the network device, and adjusts the timer length of the uplink drx-HARQ-RTT timer according to the first information. Because the first information is related to the motion information of the terminal equipment and the network equipment, the terminal equipment can accurately adjust the length of the uplink drx-HARQ-RTT timer of the terminal equipment according to the first information. In the above process, the terminal device and the network device perform less interaction to obtain the first information, so that signaling overhead is smaller.

Next, a communication method shown in the embodiment of fig. 10 will be described in detail by way of a specific example with reference to fig. 11. Fig. 11 is a schematic diagram of a communication process according to an embodiment of the present application.

after the network device and the terminal device establish the RRC connection, the network device sends RRC configuration information to the terminal device at time t0, where the RRC configuration information includes an uplink drx-HARQ-RTT timer (or a timer length of the uplink drx-HARQ-RTT timer), and the terminal device may determine the timer length of the uplink drx-HARQ-RTT timer as a first timer length of the uplink drx-HARQ-RTT timer, and adjust the timer length of the uplink drx-HARQ-RTT timer to the first timer length.

The terminal equipment determines first information corresponding to an uplink drx-HARQ-RTT timer of the terminal equipment according to the motion information of the terminal equipment and the motion information of the network equipment at the time T2, wherein the first information comprises a first adjustment period T1 and a first adjustment step length d1. At time T3 after the time T1 from time T1, the terminal device sets the timer length L of the uplink drx-HARQ-RTT timer to l1+d1, i.e. the current timer length L1 plus d1. At time T7 after the duration of T1 from time T3, the terminal device sets the timer length L of the uplink drx-HARQ-RTT timer to l1+2×d1, i.e. adds d1 to the current timer length l1+d1.

It is assumed that the terminal device determines to obtain new first information at time T9, where the new first information includes a first adjustment period T2 and a first adjustment step d2. At time T12 after the time T2 from time T7, the terminal device sets the timer length L of the uplink drx-HARQ-RTT timer to l1+2×d1+d2, i.e. adds d2 to the current timer length l1+2×d1. At time T16 after the time T2 from time T12, the terminal device sets the timer length L of the uplink drx-HARQ-RTT timer to l1+2×d1+2×d2, i.e. adds d2 to the current timer length l1+2×d1+d2. And so on.

Referring to the DRX procedure in fig. 11, the procedure of the terminal device performing DRX operation according to the DRX-HARQ-RTT timer is as follows:

assuming that the time t0 to the time t11 are one DRX cycle, the terminal device starts the DRX duration timer at the time t0, and the DRX duration timer times out at the time t 4.

Fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication means may be provided in the terminal device. Referring to fig. 12, the communication device 10 may include a processing module 11, wherein,

the processing module 11 is configured to obtain first information corresponding to a discontinuous reception hybrid automatic repeat request transmission time drx-HARQ-RTT timer, where the first information is determined by a terminal device or a network device according to motion information of the terminal device and motion information of the network device;

The processing module 11 is further configured to adjust a drx-HARQ-RTT timer of the terminal device according to the first information.

The communication device provided by the embodiment of the application can execute the technical scheme shown in the embodiment of the method, and the implementation principle and the beneficial effects are similar, and are not repeated here.

In one possible implementation, the first information includes: a first timer length and/or first adjustment information, the first adjustment information comprising a first adjustment period and a first adjustment step size;

or,

the first information includes: the first start time offset and/or second adjustment information, the second adjustment information comprising a second adjustment period and a second adjustment step size.

In a possible implementation manner, the first information is sent by the network device to the terminal device; or,

the first information is obtained by the terminal equipment according to the motion information of the terminal equipment and the motion information of the network equipment; or,

and one part of the first information is sent by the network equipment to the terminal equipment, and the other part of the first information is determined by the terminal equipment according to the motion information of the terminal equipment and the motion information of the network equipment.

Fig. 13 is a schematic structural diagram of another communication device according to an embodiment of the present application. On the basis of the embodiment shown in fig. 12, referring to fig. 13, the communication device 20 may further include a receiving module 12, where the receiving module 12 is configured to:

receiving Radio Resource Control (RRC) signaling sent by the network equipment, wherein the RRC signaling comprises the first information; or,

receiving a medium access control unit (MAC CE) sent by the network equipment, wherein the MAC CE comprises the first information; or,

and receiving PDCCH which is sent by the network equipment and indicates scheduling, wherein the PDCCH which indicates scheduling comprises the first information.

In one possible implementation manner, the drx-HARQ-RTT timer is an uplink drx-HARQ-RTT timer, and the PDCCH indicating scheduling is a PDCCH indicating uplink scheduling; or,

the drx-HARQ-RTT timer is a downlink drx-HARQ-RTT timer, and the PDCCH for indicating the scheduling is a PDCCH for indicating the downlink scheduling.

In one possible embodiment, the processing module 11 is specifically configured to:

and according to the first information, adjusting the length of the drx-HARQ-RTT timer of the terminal equipment or the initial time offset of the timer.

In a possible implementation manner, when the first information includes the first timer length and/or the first adjustment information, the processing module is specifically configured to: according to the first information, adjusting the length of a drx-HARQ-RTT timer of the terminal equipment; or,

when the first information includes the first timer start time offset and/or the second adjustment information, the processing module is specifically configured to: and according to the first information, adjusting the initial time offset of the drx-HARQ-RTT timer of the terminal equipment.

In one possible implementation, the first information includes the first timer length; the processing module 11 is specifically configured to:

and adjusting the length of the drx-HARQ-RTT timer of the terminal equipment to the first timer length.

In a possible implementation manner, the first information includes the first adjustment information; the processing module 11 is specifically configured to:

and according to the first adjustment period, periodically adjusting the current length of the drx-HARQ-RTT timer through the first adjustment step length.

In one possible implementation, the first information includes the first timer length and the first adjustment information; the processing module 11 is specifically configured to:

And adjusting the length of the drx-HARQ-RTT timer of the terminal equipment to the first timer length, and periodically adjusting the current length of the drx-HARQ-RTT timer through the first adjustment step length according to the first adjustment period.

In a possible implementation, the first information includes the first start time offset; the processing module 11 is specifically configured to:

and adjusting the initial time offset of the drx-HARQ-RTT timer of the terminal equipment to the first initial time offset.

In a possible implementation, the first information includes the second adjustment information; the processing module 11 is specifically configured to:

and according to the second adjustment period, periodically adjusting the current initial time offset of the drx-HARQ-RTT timer through the second adjustment step length.

In a possible implementation manner, the first information includes the first start time offset and the second adjustment information; the processing module 11 is specifically configured to:

and adjusting the initial time offset of the drx-HARQ-RTT timer of the terminal equipment to the first initial time offset, and periodically adjusting the current initial time offset of the drx-HARQ-RTT timer through the second adjustment step length according to the second adjustment period.

according to the first information, a drx-HARQ-RTT timer of the terminal equipment is adjusted at a first moment; wherein the first time satisfies at least one of:

the first moment is the moment when the terminal equipment acquires the first information;

the first time is a time after the second time, a time difference between the first time and the second time is the first adjustment period or the second adjustment period, and the second time is a time when the terminal equipment last adjusts the length of the drx-HARQ-RTT timer or the initial time offset.

In a possible implementation manner, the motion information of the terminal device includes a motion speed and a motion direction of the terminal device within a first preset period;

the movement information of the network device comprises a movement speed and a movement direction of the network device in a second preset period.

Fig. 14 is a schematic structural diagram of another communication device according to an embodiment of the present application. The communication apparatus 20 may be applied to a network device. Referring to fig. 14, the communication device 20 may include a transmission module 21, wherein,

the sending module 21 is configured to send information to be sent to a terminal device;

or,

In one possible implementation, the sending module 21 is specifically configured to:

sending RRC signaling to the terminal equipment, wherein the RRC signaling comprises the information to be sent; or,

transmitting an MAC CE to the terminal equipment, wherein the MAC CE comprises the information to be transmitted; or,

and sending a PDCCH indicating scheduling to the terminal equipment, wherein the PDCCH indicating scheduling comprises the information to be sent.

Fig. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application. Referring to fig. 15, the terminal device 30 may include: a transceiver 31, a memory 32, a processor 33. The transceiver 31 may include: a transmitter and/or a receiver. The transmitter may also be referred to as a transmitter, transmit port, transmit interface, or the like, and the receiver may also be referred to as a receiver, receive port, receive interface, or the like. Illustratively, the transceiver 31, the memory 32, and the processor 33 are interconnected by a bus 34.

The memory 32 is used for storing program instructions;

the processor 33 is configured to execute the program instructions stored in the memory, so as to cause the terminal device 30 to execute any of the communication methods described above.

Wherein the receiver of the transceiver 31 is operable to perform the receiving function of the terminal device in the above-described communication method.

Fig. 16 is a schematic structural diagram of a network device according to an embodiment of the present application. Referring to fig. 16, the network device 40 may include: a transceiver 41, a memory 42, a processor 43. The transceiver 41 may include: a transmitter and/or a receiver. The transmitter may also be referred to as a transmitter, transmit port, transmit interface, or the like, and the receiver may also be referred to as a receiver, receive port, receive interface, or the like. Illustratively, the transceiver 41, the memory 42, and the processor 43 are interconnected by a bus 44.

Memory 42 is used to store program instructions;

the processor 43 is configured to execute the program instructions stored in the memory, so as to cause the terminal device 30 to execute any of the communication methods described above.

Wherein the transmitter of the transceiver 41 is operable to perform the transmitting function of the network device in the communication method described above.

Embodiments of the present application provide a computer-readable storage medium having stored therein computer-executable instructions for implementing the above-described communication method when the computer-executable instructions are executed by a processor.

Embodiments of the present application may also provide a computer program product executable by a processor, which when executed, may implement a communication method performed by any of the above-described terminal devices.

The terminal device, the computer readable storage medium and the computer program product in the embodiments of the present application can execute the communication method executed by the terminal device, and specific implementation processes and beneficial effects thereof are referred to above and are not described herein.

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

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

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

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The aforementioned computer program may be stored in a computer readable storage medium. The computer program, when executed by a processor, implements steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

1. A method of communication, comprising:

a terminal device in a non-ground communication network (NTN) system acquires motion information of the terminal device;

the terminal equipment receives the motion information of the network equipment sent by the network equipment in the NTN system, wherein the network equipment is mobile equipment with a wireless receiving and transmitting function, which is deployed in the air;

the terminal equipment acquires first information corresponding to discontinuous reception hybrid automatic repeat request transmission time drx-HARQ-RTT timer; the first information is obtained by the terminal equipment according to the motion information of the terminal equipment and the motion information of the network equipment; or, a part of the first information is sent by the network device to the terminal device, and the other part of the first information is determined by the terminal device according to the motion information of the terminal device and the motion information of the network device;

The terminal equipment adjusts a drx-HARQ-RTT timer of the terminal equipment according to the first information;

the first information includes: the first adjustment information comprises a first adjustment period and a first adjustment step length, wherein the first adjustment period is a period for adjusting the timer length of the drx-HARQ-RRT timer, the first adjustment period is smaller when the distance between the terminal equipment and the network equipment is rapidly reduced or increased, and the first adjustment period is larger when the distance between the terminal equipment and the network equipment is slowly reduced or increased;

or,

the first information includes: the first adjustment information comprises a second adjustment period and a second adjustment step length, wherein the second adjustment period is a period for adjusting the initial time offset of the drx-HARQ-RRT timer, the second adjustment period is smaller when the distance between the terminal equipment and the network equipment is rapidly reduced or increased, and the second adjustment period is larger when the distance between the terminal equipment and the network equipment is slowly reduced or increased.

2. The method according to claim 1, wherein the terminal device adjusts a drx-HARQ-RTT timer of the terminal device according to the first information, comprising:

and the terminal equipment adjusts the length of a drx-HARQ-RTT timer of the terminal equipment or the initial time offset of the timer according to the first information.

3. The method according to claim 2, wherein the terminal device adjusts a length of a drx-HARQ-RTT timer or a timer start time offset of the terminal device according to the first information, comprising:

when the first information comprises the first timer length and the first adjustment information, the terminal equipment adjusts the length of a drx-HARQ-RTT timer of the terminal equipment according to the first information; or,

and when the first information comprises the first starting moment offset and the second adjustment information, the terminal equipment adjusts the starting moment offset of the drx-HARQ-RTT timer of the terminal equipment according to the first information.

4. A method according to claim 3, characterized in that the terminal device adjusts the length of the drx-HARQ-RTT timer of the terminal device according to the first information, comprising:

And the terminal equipment adjusts the length of the drx-HARQ-RTT timer of the terminal equipment to the first timer length, and periodically adjusts the current length of the drx-HARQ-RTT timer through the first adjustment step length according to the first adjustment period.

5. A method according to claim 3, wherein the terminal device adjusts the starting time offset of the drx-HARQ-RTT timer of the terminal device according to the first information, comprising:

and the terminal equipment adjusts the initial time offset of the drx-HARQ-RTT timer of the terminal equipment to the first initial time offset, and periodically adjusts the current initial time offset of the drx-HARQ-RTT timer through the second adjustment step length according to the second adjustment period.

6. The method according to any one of claim 1 to 5, wherein,

the motion information of the terminal equipment comprises the motion speed and the motion direction of the terminal equipment in a first preset period;

7. A method of communication, comprising:

Network equipment in a non-ground communication network (NTN) system acquires motion information of terminal equipment in the NTN system and motion information of the network equipment, wherein the network equipment is mobile equipment with a wireless receiving and transmitting function deployed in the air;

the network equipment sends information to be sent to the terminal equipment;

the information to be sent is first information corresponding to discontinuous reception hybrid automatic repeat-round trip transmission time drx-HARQ-RTT timer which is determined by the network equipment according to the motion information of the terminal equipment and the motion information of the network equipment;

the first information includes: the first adjustment information comprises a first adjustment period and a first adjustment step length, wherein the first adjustment period is a period for adjusting the timer length of the drx-HARQ-RRT timer, the first adjustment period is smaller when the distance between the terminal equipment and the network equipment is rapidly reduced or increased, and the first adjustment period is larger when the distance between the terminal equipment and the network equipment is slowly reduced or increased; or,

8. The method of claim 7, wherein the network device sending the information to be sent to the terminal device comprises:

the network equipment sends Radio Resource Control (RRC) signaling to the terminal equipment, wherein the RRC signaling comprises the information to be sent; or,

the network equipment sends a medium access control unit (MAC CE) to the terminal equipment, wherein the MAC CE comprises the information to be sent; or,

and the network equipment sends a Physical Downlink Control Channel (PDCCH) indicating scheduling to the terminal equipment, wherein the PDCCH indicating scheduling comprises the information to be sent.

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

the drx-HARQ-RTT timer is an uplink drx-HARQ-RTT timer, and the PDCCH for indicating the scheduling is a PDCCH for indicating the uplink scheduling; or,

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

11. A communication apparatus for use in a terminal device in a non-terrestrial communication network NTN system, comprising: a processing module and a receiving module, wherein,

the processing module is used for acquiring the motion information of the terminal equipment;

the receiving module is used for receiving the motion information of the network equipment sent by the network equipment in the NTN system, wherein the network equipment is mobile equipment with a wireless receiving and transmitting function, which is deployed in the air; acquiring first information corresponding to discontinuous reception hybrid automatic repeat request transmission time drx-HARQ-RTT timer; the first information is obtained by the terminal equipment according to the motion information of the terminal equipment and the motion information of the network equipment; or, a part of the first information is sent by the network device to the terminal device, and the other part of the first information is determined by the terminal device according to the motion information of the terminal device and the motion information of the network device;

The processing module is further configured to adjust a drx-HARQ-RTT timer of the terminal device according to the first information;

or,

12. The apparatus of claim 11, wherein the processing module is specifically configured to:

13. The apparatus of claim 12, wherein the device comprises a plurality of sensors,

when the first information includes the first timer length and the first adjustment information, the processing module is specifically configured to: according to the first information, adjusting the length of a drx-HARQ-RTT timer of the terminal equipment; or,

when the first information includes the first start time offset and the second adjustment information, the processing module is specifically configured to: and according to the first information, adjusting the initial time offset of the drx-HARQ-RTT timer of the terminal equipment.

14. The apparatus of claim 13, wherein the processing module is specifically configured to:

15. The apparatus of claim 13, wherein the processing module is specifically configured to:

16. The device according to any one of claims 11 to 15, wherein,

17. A communication apparatus for use in a network device in a non-terrestrial communication network NTN system, comprising: a processing module and a transmitting module, wherein,

the processing module is used for acquiring the motion information of the terminal equipment and the motion information of the network equipment in the NTN system, wherein the network equipment is mobile equipment with a wireless receiving and transmitting function and deployed in the air;

18. The apparatus of claim 17, wherein the sending module is specifically configured to:

transmitting Radio Resource Control (RRC) signaling to the terminal equipment, wherein the RRC signaling comprises the information to be transmitted; or,

transmitting a medium access control unit (MAC CE) to the terminal equipment, wherein the MAC CE comprises the information to be transmitted; or,

and sending a Physical Downlink Control Channel (PDCCH) indicating scheduling to the terminal equipment, wherein the PDCCH indicating scheduling comprises the information to be sent.

19. The apparatus of claim 18, wherein the device comprises a plurality of sensors,

20. The apparatus of claim 17, wherein the device comprises a plurality of sensors,

21. A terminal device, comprising: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory causes the processor to perform the communication method of any one of claims 1 to 6.

22. A network device, comprising: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory, causing the processor to perform the communication method of any one of claims 7 to 10.

23. A computer-readable storage medium, having stored therein computer-executable instructions for implementing the communication method of any one of claims 1 to 6 or the communication method of any one of claims 7 to 10 when the computer-executable instructions are executed by a processor.