CN116982385A

CN116982385A - Information processing method, device, terminal equipment and storage medium

Info

Publication number: CN116982385A
Application number: CN202180095540.0A
Authority: CN
Inventors: 李海涛; 胡奕
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2023-10-31
Also published as: WO2023279295A1

Abstract

The application discloses an information processing method, an information processing device, terminal equipment and a storage medium, and relates to the technical field of communication. The method is performed by a terminal device, the method comprising: responding to the uplink HARQ-ACK feedback based on the time difference value; the time difference is a difference between a first time point when the terminal equipment receives the feedback of the uplink HARQ-ACK and a second time point when the terminal equipment receives the last repeated transmission of the uplink transmission. Based on the scheme provided by the embodiment of the application, aiming at the characteristic of larger wireless signal transmission delay between the terminal equipment and the network in the NTN, the behavior of the terminal equipment can be clarified under the condition of receiving the feedback of the uplink HARQ-ACK.

Description

Information processing method, device, terminal equipment and storage medium

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to an information processing method, an information processing device, terminal equipment and a storage medium.

Background

An uplink hybrid automatic repeat request (HARQ-ACK) feedback (feedback) is a feedback information sent by a network device to a terminal device based on a reception situation of a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).

In Non-terrestrial network (Non-Terrestrial Network, NTN) systems, the Round Trip Time (RTT) is much longer than the terminal processing Time considered in existing terrestrial network standards due to the substantial increase in signal propagation delay between the terminal device and the network device. In the NTN system, how the terminal device responds to the received uplink HARQ-ACK feedback based on the above situation, and the related art has not provided a better solution.

Disclosure of Invention

The embodiment of the application provides an information processing method, an information processing device, terminal equipment and a storage medium, which can be used for determining the response behavior of the terminal equipment after receiving uplink HARQ-ACK feedback. The technical scheme is as follows:

according to an aspect of an embodiment of the present application, there is provided an information processing method, which is performed by a terminal device, the method including:

responding to the uplink HARQ-ACK feedback based on the time difference value;

the time difference is a difference between a first time point when the terminal equipment receives the feedback of the uplink HARQ-ACK and a second time point when the terminal equipment receives the last repeated transmission of the uplink transmission.

According to an aspect of an embodiment of the present application, there is provided an information processing apparatus including: a response module;

The response module is used for responding to the uplink HARQ-ACK feedback based on the time difference value;

According to an aspect of an embodiment of the present application, there is provided a terminal device including a processor;

the processor is used for responding to the uplink HARQ-ACK feedback based on the time difference value;

According to an aspect of the embodiments of the present application, there is provided a computer-readable storage medium having stored therein a computer program for execution by a processor to implement the above-described information processing method on the terminal device side.

According to an aspect of the embodiment of the present application, there is provided a chip including a programmable logic circuit and/or program instructions for implementing the above-mentioned information processing method on the terminal device side when the chip is running.

According to an aspect of the embodiments of the present application, there is provided a computer program product or a computer program including computer instructions stored in a computer-readable storage medium, from which a processor reads and executes the computer instructions to implement the above-described information processing method on the terminal device side.

The technical scheme provided by the embodiment of the application can bring the following beneficial effects:

the method comprises the steps that under the condition that uplink HARQ-ACK feedback fed back by network equipment is received, a terminal equipment determines the response mode of the uplink HARQ-ACK feedback based on a time difference value, wherein the time difference value is a difference value between a first time point of the terminal equipment receiving the uplink HARQ-ACK feedback and a second time point of the last repeated transmission of the uplink transmission, the behavior of the terminal equipment is clarified, and due to the fact that the response of the uplink HARQ-ACK feedback is carried out, the characteristic that the signal transmission delay between the terminal equipment and a network side in an NTN system is greatly increased is considered, and the fact that the terminal equipment can respond to the uplink HARQ-ACK feedback correctly based on the time difference value is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a communication system provided by an exemplary embodiment of the present application;

FIG. 2 is a schematic diagram of a communication system provided by an exemplary embodiment of the present application;

FIG. 3 is a flowchart of an information processing method provided by an exemplary embodiment of the present application;

fig. 4 is a schematic diagram of an information processing method provided by an exemplary embodiment of the present application;

fig. 5 is a schematic diagram of an information processing method provided by an exemplary embodiment of the present application;

fig. 6 is a schematic diagram of an information processing method provided by an exemplary embodiment of the present application;

fig. 7 is a block diagram of an information processing apparatus provided by an exemplary embodiment of the present application;

fig. 8 is a schematic structural diagram of a terminal device according to an exemplary embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

Currently, the related standards organization is researching NTN technology, which generally provides communication services to terrestrial users by adopting a satellite communication mode. Satellite communications have many unique advantages over terrestrial cellular communication networks. First, satellite communications are not limited by the user region, for example, general land communications cannot cover areas where communication devices cannot be installed, such as oceans, mountains, deserts, etc., or communication coverage is not performed due to rarity of population, while for satellite communications, since one satellite can cover a larger ground, and the satellite can orbit around the earth, theoretically every corner on the earth can be covered by satellite communications. And secondly, satellite communication has great social value. Satellite communication can be covered in remote mountain areas, poor and backward countries or regions with lower cost, so that people in the regions enjoy advanced voice communication and mobile internet technology, and the digital gap between developed regions is reduced, and the development of the regions is promoted. Again, the satellite communication distance is far, and the cost of communication is not obviously increased when the communication distance is increased; and finally, the satellite communication has high stability and is not limited by natural disasters.

Communication satellites are classified into Low Earth Orbit (LEO) satellites, medium Earth Orbit (MEO) satellites, geosynchronous Orbit (Geostationary Earth Orbit, GEO) satellites, high elliptical Orbit (High Elliptical Orbit, HEO) satellites, and the like according to the Orbit heights. LEO and GEO are the main studies at the present stage.

1、LEO

The low orbit satellite has a height ranging from 500km to 1500km and a corresponding orbit period of about 1.5 hours to 2 hours. The signal propagation delay for single hop communications between users is typically less than 20ms. The maximum satellite visibility time is 20 minutes. The signal propagation distance is short, the link loss is less, and the requirement on the transmitting power of the user terminal equipment is not high.

2、GEO

Geosynchronous orbit satellites have an orbit height of 35786km and a period of 24 hours around the earth. The signal propagation delay for single hop communications between users is typically 250ms.

In order to ensure the coverage of the satellite and improve the system capacity of the whole satellite communication system, the satellite adopts multiple beams to cover the ground, and one satellite can form tens or hundreds of beams to cover the ground; a satellite beam may cover a ground area of several tens to hundreds of kilometers in diameter.

There are at least two NTN networks: a transparent load (transparent payload) NTN network, as shown in fig. 1; the regeneration load (regenerative payload) NTN network is shown in fig. 2.

The NTN network consists of the following network elements:

1 or more network devices for connecting satellites to a terrestrial public network.

Feeder link: a link for communication between the gateway and the satellite.

Service link: a link for communication between a terminal and a satellite.

Satellite: the functions provided by the device can be divided into transmission load and regeneration load.

And the transparent load is that only the functions of wireless frequency filtering, frequency conversion and amplification are provided, only the transparent forwarding of signals is provided, and the forwarded waveform signals are not changed.

The regeneration load can provide demodulation/decoding, routing/conversion, encoding/modulation functions in addition to the functions of radio frequency filtering, frequency conversion and amplification. Which has some or all of the functionality of the base station.

Inter-Satellite Links (ISL): exists in a regenerative load scenario.

Before describing the technical scheme of the application, a few background technical knowledge related to the application is described.

1. Enhanced machine-type communication (enhanced Machine Type Communication, eMTC) and physical channels therefor

The MTC physical downlink control channel (MTC Physical Downlink Control Channel, MPDCH) is used for sending scheduling information, the enhanced physical downlink control channel (Enhanced Physical Downlink Control Channel, EPDCCH) design based on LTE R11 is used for receiving control information based on demodulation reference signals (Demodulation Reference Signal, DMRS), the functions of control information precoding, beamforming and the like are supported, one EPDCCH transmits one or more enhanced control channel resources (Enhanced Control Channel Element, ECCE), the aggregation level is {1,2,4,8,16,32}, and each ECCE is composed of a plurality of enhanced resource element groups (Enhanced Resource Element Group, EREG). The MPDCH maximum repetition number Rmax is configurable, and the value range {1,2,4,8,16,32,64,128,256}.

The eMTC physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) is substantially the same as the LTE PDSCH channel, but with the addition of repetition and inter-narrowband hopping for improved PDSCH channel coverage and interference averaging. The eMTC terminal device may operate in two modes, modeA and ModeB: in Mode a, the number of uplink and downlink hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) processes is at most 8, and in this Mode, the number of PDSCH repetitions is {1,4, 16,32 }; in Mode B, the number of uplink and downlink HARQ processes is 2 at maximum, and in this Mode, the PDSCH repetition number is {4, 16, 64, 128, 256, 512, 1024, 2048}.

The frequency domain resource format of the eMTC physical uplink control channel (Physical Uplink Control Channel, PUCCH) is the same as that of LTE, and supports frequency hopping and repeated transmission. Mode A supports the transmission of HARQ-ACK/NACK, scheduling request (Scheduling Request, SR) and channel state information (Channel State Information, CSI) on the PUCCH, namely, supports PUCCH format 1/1a/2/2a, and the number of supported repetition times is {1,2,4,8}; mode B does not support CSI feedback, i.e., only PUCCH format 1/1a is supported, the number of repetitions supported is {4,8,16,32}.

eMTC physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) is the same as LTE, but the number of maximum Resource Blocks (RBs) that can be scheduled is limited to 6. The method supports two modes of Mode A and Mode B, the repetition number of Mode A can be {8, 16,32}, and the method supports at most 8 processes, and has higher speed; mode B covers a longer distance and the number of repetitions may be {192, 256, 384, 512, 768, 1024, 1536, 2048}, supporting a maximum of 2 HARQ processes upstream.

2. LTE discontinuous reception (Discontinuous Reception, DRX) procedure

In LTE, the network may configure a DRX function for the terminal device, so that the terminal device discontinuously monitors the PDCCH, so as to achieve the purpose of power saving of the terminal device. Each medium access control (Medium Access Control, MAC) entity has a DRX configuration, the configuration parameters of the DRX comprising:

-drx cycle: a DRX cycle;

-drx-onDurationTimer: a DRX duration timer;

-drx-StartOffset: the terminal equipment starts the time delay of drx-ondurationTimer;

-drx-inactivatytimer: a DRX inactivity timer;

-drx-retransmission timer: DRX downlink retransmission timer, each downlink HARQ process except broadcast HARQ process corresponds to a DRX-retransmission timer;

-drx-ulretransmission timer: and each DRX uplink retransmission timer corresponds to one DRX-ULRransmission timer.

If the terminal device is configured with DRX, the terminal device needs to monitor PDCCH during the DRX activation period. The DRX active period includes several cases:

any one of 7 timers, DRX-onduration timer, DRX-incarvitytimer, DRX-retransmission timer, DRX-ul retransmission timer, and mac-c-contentioresolution timer, is running.

-SR is sent on PUCCH/SPUCCH (Short PUCCH) and in a waiting (pending) state.

-in the contention-based random access procedure, the terminal device 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.

An uplink grant (UL grant) may be received for one pending HARQ retransmission and there is data in the HARQ buffer (buffer) of the synchronous HARQ process.

Uplink HARQ-ACK feedback (MPDCCH-UL-HARQ-ACK-FeedbackConfig) for MPDCCH is configured and is currently in repeated transmission within one bundle (bundle).

The terminal device decides the time for starting the DRX-onduration timer according to whether the terminal device is currently in a short DRX cycle (short DRX cycle) or a long DRX cycle (long DRX cycle), which is specifically defined as follows:

-1> if Short DRX Cycle is used, and the current subframe satisfies [ (system frame number (System Frame Number, SFN) ×10) +subframe number ] module (DRX-Short Cycle) = (drxStartOffset) module (DRX-Short Cycle); or alternatively

-1> if Long DRX Cycle is used, and the current subframe satisfies [ (sfn×10) +subframe number ] module (DRX-LongCycle) =drx-StartOffset;

-2> if NB-IoT (Narrow Band Internet of Things ), then:

-3> if there is at least one HARQ RTT Timer (HARQ RTT Timer) corresponding to the HARQ process or an uplink HARQ RTT Timer (UL HARQ RTT Timer) is not running, starting drx-onduration Timer.

-2> otherwise, drx-onDurationTimer is started.

The condition for starting or restarting the HARQ RTT Timer by the terminal equipment is as follows:

if the terminal device receives a PDCCH indicating downlink transmission, or if the terminal has configured downlink grant in the subframe, then:

a) If the terminal device is an eMTC terminal device, then:

a1 If the physical layer indicates that a plurality of Transport Block (TB) transmissions are scheduled, the terminal device starts a HARQ RTT Timer corresponding to a downlink HARQ process used by the PDSCH of each of the plurality of TBs in a subframe in which the last repeated transmission of the PDSCH of the last TB of the plurality of TBs is received.

a2 Otherwise, the terminal equipment starts the HARQ RTT Timer corresponding to the downlink HARQ process used by the PDSCH in the subframe where the last repeated transmission of the PDSCH is received.

b) Otherwise, starting the HARQ RTT Timer corresponding to the downlink HARQ process used by the PDSCH.

If the HARQ RTT Timer times out, then: if the data decoding of the HARQ process fails, the terminal device starts a DRX downlink retransmission timer (DRX-retransmission timer) corresponding to the downlink HARQ process.

The conditions for starting or restarting UL HARQ RTT Timer the terminal device are:

if the terminal device receives the PDCCH indicating an uplink transmission using an asynchronous HARQ process, or if the terminal device has a configured uplink grant for a certain asynchronous HARQ process in the subframe, or if the terminal device receives the PDCCH indicating an uplink transmission using an automatic HARQ process, then:

a) If mpdcch-UL-HARQ-ACK-FeedbackConfig is not configured, then:

a1 If the physical layer indicates that the plurality of TBs transmission is scheduled, the terminal device starts UL HARQ RTT Timer corresponding to the uplink HARQ process used by the PUSCH of each of the plurality of TBs in the subframe where the last retransmission of the PUSCH of the last TB of the plurality of TBs is completed.

a2 Otherwise, the terminal equipment starts UL HARQ RTT Timer corresponding to the uplink HARQ process used by the PUSCH in the subframe where the last repeated transmission of the PUSCH is completed.

b) If mpdcch-UL-HARQ-ACK-feedfeedback is configured and UL HARQ-ACK feedback is not received until the last repeated transmission of PUSCH, then:

b1 The terminal equipment starts or restarts the drx-ULRransmission timer corresponding to the uplink HARQ process used in the subframe where the last retransmission of the PUSCH is completed.

If UL HARQ RTT Timer corresponding to a certain uplink HARQ process is overtime, the terminal equipment starts the drx-ULRranspossessionTimer corresponding to the uplink HARQ process.

3. UL HARQ-ACK feedback (uplink HARQ-ACK feedback)

For eMTC terminal equipment with poor network coverage, more times of repeated transmission are required during physical channel transmission, for example 2048 times of repeated transmission are required during PUSCH transmission at Mode B in the worst case. The network device attempts decoding by repeating transmission one by one when receiving PUSCH, that is, the network device does not start decoding after receiving the entire 2048 repeated transmissions, so that the network device may successfully receive PUSCH after receiving a part of repeated transmissions. In order to reduce the power consumption of the full duplex (capable of receiving and transmitting simultaneously) eMTC terminal equipment, the network equipment can feed back an uplink HARQ-ACK feedback as early as possible, so that the eMTC terminal equipment can stop subsequent PUSCH repeated transmission in time after receiving, and the purpose of energy saving is achieved.

In LTE systems, for the use of uplink HARQ-ACK feedback, one of the purposes is to terminate PUSCH transmissions and the other is to terminate MPDCCH listening. The former corresponds to the network device receiving a successful PUSCH with partial retransmission (repetition), and the latter corresponds to the network device successfully receiving the PUSCH of all HARQ processes. In the ground network, the time of the network equipment responding to the uplink HARQ-ACK feedback mainly considers the processing time delay after the terminal equipment finishes the PUSCH transmission, which is usually several milliseconds and is larger than the RTT of the signal transmission between the terminal equipment and the network, namely the network can respond to the subsequent scheduling of the terminal equipment according to the uplink receiving condition in the processing time.

Compared with the traditional ground cellular network, the signal propagation delay between the terminal equipment and the network in the NTN is greatly increased, and the RTT is far longer than the terminal processing time considered in the existing ground network standard, so that a new problem is also provided for an uplink HARQ-ACK feedback mechanism. For example, the network successfully receives the PUSCH after receiving part of the retransmission, however, when the network responds to the uplink HARQ-ACK feedback, the RTT is too long, and the terminal device may end PUSCH transmission (i.e. all the retransmission) after receiving the uplink HARQ-ACK feedback, and at this time, the behavior of the terminal device needs to be defined.

In the embodiment of the application, aiming at the characteristic of larger wireless signal transmission delay between terminal equipment and a network in an NTN system, a response mode for uplink HARQ-ACK feedback is provided, and under the condition that the terminal equipment receives the uplink HARQ-ACK feedback fed back by the network equipment, the response mode for the uplink HARQ-ACK feedback is determined based on a time difference, wherein the time difference is the difference between the first time point when the terminal equipment receives the uplink HARQ-ACK feedback and the second time point when the terminal equipment repeatedly transmits the uplink transmission, the behavior of the terminal equipment is clarified, and the time difference is considered when the terminal equipment responds to the uplink HARQ-ACK feedback, so that the terminal equipment can respond to the uplink HARQ-ACK feedback correctly based on the time difference.

The technical scheme of the application is described and illustrated by the following examples.

Referring to fig. 3, a flowchart of an information processing method according to an embodiment of the application is shown. The method can be applied to a terminal device in the communication system shown in fig. 1 or fig. 2. The method may comprise the steps of:

step 302, the uplink HARQ-ACK feedback is responded based on a time difference, which is a difference between a first time point when the terminal device receives the uplink HARQ-ACK feedback and a second time point when the terminal device receives the last repeated transmission of the uplink transmission.

In the present application, the uplink transmission supports retransmission (retransmission), i.e., the uplink transmission is repeated for the same uplink transmission. The terminal equipment determines a response mode to the uplink HARQ-ACK feedback based on a time difference value between a first time point of the uplink HARQ-ACK feedback sent by the receiving network equipment and a second time point of the last repeated transmission of the uplink transmission, wherein the first time point is a time point which is not earlier than the second time point in a time domain position. For example, a first point in time being a point in time that is not earlier than a second point in time domain position may be understood as the first point in time being after the second point in time domain position; it is also understood that the first point in time is identical in time domain position to the second point in time. The second time point may be understood as a starting time of the last retransmission of the uplink transmission, may be understood as an intermediate time of the last retransmission of the uplink transmission, and may be understood as an ending time of the last retransmission of the uplink transmission.

In the related art, the uplink HARQ-ACK feedback is mainly directed to the following usage scenarios: first, a scenario is aimed at a network that uplink HARQ-ACK feedback is sent after uplink transmission is successfully received by using partial retransmission. Secondly, the method aims at the scene that the network successfully receives the uplink transmission of all uplink HARQ processes and then sends uplink HARQ-ACK feedback.

Optionally, the time difference is used to assist the terminal device in determining a usage scenario of uplink HARQ-ACK feedback, and further, the terminal device responds to the uplink HARQ-ACK feedback based on the determined usage scenario of uplink HARQ-ACK feedback.

Optionally, the uplink transmission includes: PUSCH.

Optionally, the repeated transmission corresponds to a number of repetitions. For example, for Mode a type of uplink transmission, the number of repetitions supported by the uplink transmission is {8, 16, 32}. For example, for a ModeB type of uplink transmission, the number of repetitions supported by the uplink transmission is {192, 256, 384, 512, 768, 1024, 1536, 2048}.

Alternatively, the last retransmission refers to a retransmission closest to the first time point in time domain among the retransmissions that have completed the uplink transmission.

For example, the number of repetitions of PUSCH is 8, when the terminal device has already sent the 3 rd repetition transmission and has received the uplink HARQ-ACK feedback when the 4 th repetition transmission has not yet been sent, the last repetition transmission refers to the 3 rd repetition transmission, and the corresponding time difference refers to the difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point when the terminal device sends the 3 rd repetition transmission.

For example, the number of repetitions of PUSCH is 8, and when the terminal device receives the uplink HARQ-ACK feedback when the 8 th repetition transmission has been sent, the last repetition transmission refers to the 8 th repetition transmission, and the corresponding time difference refers to the difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point when the terminal device sends the 8 th repetition transmission.

Optionally, the terminal device comprises at least one of the following types of terminal devices: eMTC terminal equipment; low capability terminal equipment.

Optionally, the resources used by the terminal device to send the uplink transmission include: resources corresponding to uplink transmission of a first asynchronous HARQ process indicated by a physical downlink control channel PDCCH received by a terminal device; or, the terminal equipment has the resources corresponding to the configured uplink grant for the second asynchronous HARQ process; or, the terminal equipment receives the resource corresponding to the uplink transmission of the automatic HARQ process indicated by the PDCCH.

In summary, the method provided in this embodiment provides a response manner for uplink HARQ-ACK feedback, where the terminal device determines, based on a time difference, a response manner for uplink HARQ-ACK feedback when receiving uplink HARQ-ACK feedback fed back by the network device, where the time difference is a difference between a first time point when the terminal device receives uplink HARQ-ACK feedback and a second time point when uplink transmission is repeated last time, and determines a behavior of the terminal device, and because when the terminal device responds to the uplink HARQ-ACK feedback, regarding to a characteristic that a signal transmission delay between the terminal device and the network side in the NTN system is greatly increased, the time difference is considered, so that the terminal device can correctly respond to the uplink HARQ-ACK feedback based on the time difference is ensured.

In an exemplary embodiment, the terminal device responds to the uplink HARQ-ACK feedback based on the magnitude of the value between the time difference and the RTT.

Optionally, the terminal determines a usage scenario of uplink HARQ-ACK feedback based on a value between the time difference and RTT, and responds to the uplink HARQ-ACK feedback based on the usage scenario of the uplink HARQ-ACK feedback.

In the following, the uplink HARQ-ACK feedback is mainly directed to the following usage scenarios: first, a scenario is aimed at a network that uplink HARQ-ACK feedback is sent after uplink transmission is successfully received by using partial retransmission. Second, an exemplary description is made with respect to a scenario in which the network successfully receives uplink transmissions of all uplink HARQ processes and then transmits uplink HARQ-ACK feedback.

(1) The time difference is smaller than RTT, and the method aims at the scene that the network sends uplink HARQ-ACK feedback after the uplink transmission is successfully received by using partial repeated transmission.

The time when the terminal device receives the feedback of the uplink HARQ-ACK is less than RTT from the time of the last retransmission of the uplink transmission, which represents that the network device successfully decodes the uplink transmission by using partial retransmission (repetition), where the network device acts as a subsequent retransmission that expects to terminate the uplink transmission through the feedback of the uplink HARQ-ACK.

Alternatively, step 301 is alternatively implemented as step 301a: and stopping the rest repeated transmission of the uplink transmission when the time difference is smaller than the RTT and the repeated transmission of the uplink transmission is not finished.

Alternatively, step 301 is alternatively implemented as step 301b: and stopping the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission when the time difference value is smaller than the RTT and the repeated transmission of the uplink transmission is ended.

Optionally, the repeated transmission of the uplink transmission corresponds to the number of repetitions, and the fact that the repeated transmission of the uplink transmission has not ended indicates that: the number of repeated transmissions of the uplink transmission which is sent by the terminal equipment is smaller than the number of repeated transmissions; the repeated transmission of the uplink transmission has ended is that: the number of repeated transmissions of the uplink transmission which is sent by the terminal equipment is equal to the number of repeated transmissions; the remaining repeated transmissions of the uplink transmission refer to: and subtracting the repeated transmission of the uplink transmission which is finished by the terminal equipment from the repeated transmission of the uplink transmission in the repeated times of the uplink transmission, and the rest repeated transmission.

For example, when the number of repetitions of the uplink transmission is 8, the time difference is smaller than RTT, and the terminal device has sent the 1 st to 6 th repetition, the terminal device stops the remaining 7 th and 8 th repetition.

For example, the number of repetitions of the uplink transmission is 8, and when the time difference is smaller than RTT and the terminal device has sent the 8 th repetition, the terminal device stops the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission.

That is, when the time difference is smaller than RTT, the usage scenario representing uplink HARQ-ACK feedback is a scenario in which the network uses partial retransmission to successfully receive uplink transmission and then send uplink HARQ-ACK feedback, and at this time, the network device is expected to terminate subsequent retransmission of the uplink transmission through uplink HARQ-ACK feedback, if the retransmission of the uplink transmission has not yet ended, the remaining retransmission of the uplink transmission is stopped, and if the retransmission of the uplink transmission has ended and a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission is running, the DRX uplink retransmission timer corresponding to the HARQ process that is running is stopped, so as to achieve the purpose of energy saving of the terminal device.

Optionally, after a third time point, the terminal device starts a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, where the third time point is a time point when the terminal device has sent the last retransmission of the uplink transmission; or after a fourth time point, the terminal equipment starts a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, wherein the fourth time point is one time point after the third time point.

Optionally, RTT is a value obtained by rounding one of the following parameters:

RTT value between terminal equipment and access network equipment;

a Timing Advance (TA) value of the terminal device;

RTT value between the terminal device and the satellite;

the sum of RTT value and network processing time between the terminal equipment and the access network equipment;

the sum of the TA value of the terminal equipment and the network processing time;

the sum of RTT between the terminal device and the satellite and network processing time.

Optionally, the network processing time includes access network device processing time and/or satellite processing time.

Alternatively, rounding is either up or down.

Alternatively, the rounding is in milliseconds.

Optionally, the network processing time is carried in at least one of the following signaling: a system message; radio resource control (Radio Resource Control, RRC) dedicated signaling; MAC Control Element (CE); downlink control information (Downlink Control Information, DCI).

Exemplary, a scenario in which uplink HARQ-ACK feedback is transmitted after successful reception of uplink transmission using partial duplicate transmission for a network is described in conjunction with fig. 4.

The terminal device sends PUSCH 402 based on the scheduling of uplink grant 401 under the condition that uplink grant (UL grant) 401 is received, the HARQ process corresponding to PUSCH 402 is marked as HARQ ID 0, and starts a DRX uplink retransmission timer corresponding to HARQ ID 0 after a period of time after the last repeated transmission of PUSCH 402 is completed, and then, the terminal device sends PUSCH 404 based on the scheduling of uplink grant 403 under the condition that uplink grant 403 is received, the HARQ process corresponding to PUSCH 404 is marked as HARQ ID 1, and starts a DRX uplink retransmission timer corresponding to HARQ ID 1 after a period of time after the last repeated transmission of PUSCH 404 is completed.

The terminal device completes the last repeated transmission of the PUSCH 404 at the time point t1, receives the uplink HARQ-ACK feedback 405 at the time point t2, and the time length between the time point t1 and the time point t2 is a time difference, as can be seen from fig. 4, the time difference is smaller than RTT, and the PUSCH 404 of the terminal device has completed all the repeated transmissions, so that the terminal device does not need to continue to monitor the retransmission schedule for the HARQ process corresponding to the PUSCH 404, and therefore, needs to stop the DRX uplink retransmission timer corresponding to the running HARQ ID 1, so as to achieve the purpose of terminal device energy saving.

Exemplary, a scenario in which uplink HARQ-ACK feedback is transmitted after successful reception of uplink transmission using partial duplicate transmission for a network is described in conjunction with fig. 5.

The terminal device sends the PUSCH 502 based on the scheduling of the uplink grant 501 under the condition that the terminal device receives the uplink grant 501, the HARQ process corresponding to the PUSCH 502 is marked as HARQ ID 0, and starts the DRX uplink retransmission timer corresponding to the HARQ ID 0 after a period of time after the last repeated transmission of the PUSCH 502 is completed, and then, the terminal device sends the PUSCH 504 based on the scheduling of the uplink grant 503 under the condition that the terminal device receives the uplink grant 503, and the HARQ process corresponding to the PUSCH 504 is marked as HARQ ID 1.

The terminal device completes one repetition transmission of the PUSCH 504 at a time point t3, receives the uplink HARQ-ACK feedback 505 at a subsequent time point t4, and the time length between the time point t3 and the time point t4 is a time difference, as can be seen from fig. 5, the time difference is smaller than RTT, and the PUSCH 504 of the terminal device does not complete all repetition transmission, so that the terminal device does not need to transmit the remaining repetition transmission of the PUSCH 504, so as to achieve the purpose of terminal device energy saving.

In summary, in the method provided in this embodiment, when the time difference is smaller than RTT, the usage scenario representing uplink HARQ-ACK feedback is a scenario in which the network uses partial retransmission to successfully receive uplink transmission and then send uplink HARQ-ACK feedback, and at this time, the network device is expected to terminate subsequent retransmission of the uplink transmission through uplink HARQ-ACK feedback, if the retransmission of the uplink transmission has not yet ended, the remaining retransmission of the uplink transmission is stopped, and if the retransmission of the uplink transmission has ended and a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission is running, the DRX uplink retransmission timer corresponding to the HARQ process that is running is stopped, so as to achieve the purpose of energy saving of the terminal device.

(2) The time difference is larger than RTT, and the scene of sending uplink HARQ-ACK feedback after the network successfully receives the uplink transmission of all uplink HARQ processes is aimed at.

The time when the terminal equipment receives the uplink HARQ-ACK feedback is greater than RTT from the time when the terminal equipment receives the latest retransmission of the uplink transmission, which represents that the network equipment receives the repeated transmission of the uplink transmission of all uplink HARQ processes including the uplink transmission and successfully decodes all the uplink transmission, and at the moment, the network equipment acts as a retransmission scheduling monitor for expecting to terminate all the HARQ processes through the uplink HARQ-ACK feedback.

Alternatively, step 301 is alternatively implemented as step 301c: and if the time difference value is larger than the RTT, stopping the DRX uplink retransmission timers corresponding to all the HARQ processes of the terminal equipment.

That is, when the time difference is greater than RTT, the usage scenario representing uplink HARQ-ACK feedback is a scenario in which the network successfully receives uplink transmissions of all uplink HARQ processes and then sends the uplink HARQ-ACK feedback, and at this time, the network device is expected to terminate retransmission scheduling monitoring of all HARQ processes through the uplink HARQ-ACK feedback, so that the terminal device stops DRX uplink retransmission timers corresponding to all HARQ processes, so as to achieve the purpose of energy saving of the terminal device.

RTT value between terminal equipment and access network equipment;

TA value of the terminal equipment;

RTT value between the terminal device and the satellite;

Alternatively, rounding is either up or down.

Alternatively, the rounding is in milliseconds.

Optionally, the network processing time is carried in at least one of the following signaling: a system message; RRC dedicated signaling; a MAC CE; DCI (DCI).

Exemplary, a scenario in which uplink HARQ-ACK feedback is transmitted after the network successfully receives uplink transmissions for all uplink HARQ processes is described in conjunction with fig. 6.

The terminal device sends the PUSCH 602 based on the scheduling of the uplink grant 601, the HARQ process corresponding to the PUSCH 602 is marked as HARQ ID 0, and starts the DRX uplink retransmission timer corresponding to the HARQ ID 0 after a period of time after the last repeated transmission of the PUSCH 602 is completed, and then sends the PUSCH 604 based on the scheduling of the uplink grant 603, the HARQ process corresponding to the PUSCH 604 is marked as HARQ ID 1 after a period of time after the last repeated transmission of the PUSCH 604 is completed, and starts the DRX uplink retransmission timer corresponding to the HARQ ID 1 when the terminal device receives the uplink grant 603.

The terminal device completes the last repeated transmission of PUSCH 604 at time point t5, receives uplink HARQ-ACK feedback 605 at time point t6, and the time length between time point t5 and time point t6 is a time difference, and as can be seen from fig. 6, the time difference is greater than RTT, which represents that the network device receives all repeated transmissions of PUSCHs of all uplink HARQ processes and successfully decodes all PUSCHs, and at this time, the network device acts as expecting to terminate retransmission scheduling interception of all HARQ processes through uplink HARQ-ACK feedback. Therefore, the terminal device needs to stop the DRX uplink retransmission timer that all uplink HARQ processes are running, including: DRX uplink retransmission timer corresponding to HARQ ID 0 and DRX uplink retransmission timer corresponding to HARQ ID 1, so as to achieve the purpose of terminal equipment energy saving.

In summary, in the method provided in this embodiment, when the time difference is greater than RTT, the usage scenario representing uplink HARQ-ACK feedback is a scenario in which the network successfully receives uplink transmissions of all uplink HARQ processes and then sends uplink HARQ-ACK feedback, and at this time, the network device is expected to terminate retransmission scheduling monitoring of all HARQ processes through uplink HARQ-ACK feedback, and then the terminal device stops DRX uplink retransmission timers corresponding to all HARQ processes, so as to achieve the purpose of terminal device energy saving.

It will be appreciated that the above method embodiments may be implemented alone or in combination, and the application is not limited in this regard.

The following are examples of the apparatus of the present application that may be used to perform the method embodiments of the present application. For details not disclosed in the embodiments of the apparatus of the present application, please refer to the embodiments of the method of the present application.

Referring to fig. 7, a block diagram of an information processing apparatus according to an embodiment of the present application is shown. The device has the function of realizing the method example of the terminal equipment side, and the function can be realized by hardware or can be realized by executing corresponding software by hardware. The device may be the terminal device described above, or may be provided in the terminal device. As shown in fig. 7, the apparatus 700 may include: a response module 702;

The response module 702 is configured to respond to uplink HARQ-ACK feedback based on the time difference;

In an alternative embodiment, the response module 702 is configured to respond to the uplink HARQ ACK feedback based on a value between the time difference and RTT.

In an alternative embodiment, the response module 702 is configured to stop the remaining repeated transmissions of the uplink transmission when the time difference is smaller than the RTT and the repeated transmissions of the uplink transmission have not ended.

In an alternative embodiment, the response module 702 is configured to stop the DRX uplink retransmission timer corresponding to the HARQ process for uplink transmission if the time difference is smaller than the RTT and the repeated transmission for uplink transmission has ended.

In an optional embodiment, the response module 702 is configured to stop DRX uplink retransmission timers corresponding to all HARQ processes of the terminal device when the time difference is greater than the RTT.

In an alternative embodiment, the RTT is a value obtained by rounding one of the following parameters:

RTT value between the terminal device and the access network device;

the TA value of the terminal equipment;

RTT value between the terminal device and the satellite;

the sum of the RTT value between the terminal equipment and the access network equipment and the network processing time;

and the sum of RTT between the terminal equipment and the satellite and network processing time.

In an alternative embodiment, the network processing time includes access network device processing time and/or satellite processing time.

In an alternative embodiment, the rounding is an upward rounding or a downward rounding.

In an alternative embodiment, the rounding is in milliseconds.

In an alternative embodiment, the network processing time is carried in at least one of the following signaling: a system message; RRC dedicated signaling; a MAC CE; DCI (DCI).

In an alternative embodiment, the apparatus further comprises: a timer starting module;

the timer starting module is configured to start a DRX uplink retransmission timer corresponding to the uplink HARQ process after a third time point, where the third time point is a time point when the terminal device has sent the last retransmission of the uplink transmission;

Or alternatively, the first and second heat exchangers may be,

the timer starting module is configured to start a DRX uplink retransmission timer corresponding to the uplink transmission HARQ process after a fourth time point, where the fourth time point is a time point after the third time point.

In an alternative embodiment, the uplink transmission includes PUSCH.

In an alternative embodiment, the last retransmission refers to a retransmission closest to the first time point in time domain among the retransmissions that the uplink transmission has completed.

In an alternative embodiment, the terminal device comprises at least one of the following types of terminal devices:

eMTC terminal equipment; low capability terminal equipment.

It should be noted that, when the apparatus provided in the foregoing embodiment performs the functions thereof, only the division of the respective functional modules is used as an example, in practical application, the foregoing functional allocation may be performed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules, so as to perform all or part of the functions described above.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

Fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device may include: a processor 801, a receiver 802, a transmitter 803, a memory 804, and a bus 805.

The processor 801 includes one or more processing cores, and the processor 801 executes various functional applications and information processing by running software programs and modules.

The receiver 802 and the transmitter 803 may be implemented as one transceiver 806, which transceiver 806 may be a communication chip.

The memory 804 is connected to the processor 801 through a bus 805.

The memory 804 may be used for storing a computer program, and the processor 801 is used for executing the computer program to implement the steps executed by the terminal device in the above-described method embodiment.

Further, the memory 804 may be implemented by any type of volatile or nonvolatile storage device, including but not limited to: RAM (Random-Access Memory) and ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other solid state Memory technology, CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc, high density digital video disc) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices.

Optionally, the processor 801 is configured to respond to uplink HARQ-ACK feedback based on the time difference value;

Optionally, the processor 801 is configured to respond to the uplink HARQ ACK feedback based on a value between the time difference and RTT.

Optionally, the processor 801 is configured to stop remaining retransmission of the uplink transmission when the time difference is smaller than the RTT and retransmission of the uplink transmission has not ended.

Optionally, the processor 801 is configured to stop the discontinuous reception DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission when the time difference is smaller than the RTT and the retransmission of the uplink transmission has ended.

Optionally, the processor 801 is configured to stop DRX uplink retransmission timers corresponding to all HARQ processes of the terminal device when the time difference is greater than the RTT.

Optionally, the RTT is a value obtained by rounding one of the following parameters:

RTT value between the terminal device and the access network device;

the TA value of the terminal equipment;

RTT value between the terminal device and the satellite;

Optionally, the rounding is an upward rounding or a downward rounding.

Optionally, the rounding is in milliseconds.

Optionally, the processor 801 is configured to start a DRX uplink retransmission timer corresponding to the uplink HARQ process after a third time point, where the third time point is a time point when the terminal device has sent the last retransmission of the uplink transmission;

or alternatively, the first and second heat exchangers may be,

the processor 801 is configured to start a DRX uplink retransmission timer corresponding to the uplink HARQ process after a fourth time point, where the fourth time point is a time point after the third time point.

Optionally, the uplink transmission includes PUSCH.

Optionally, the last retransmission refers to a retransmission closest to the first time point in time domain in the retransmission in which the uplink transmission is completed.

Optionally, the terminal device includes at least one of the following types of terminal devices:

eMTC terminal equipment; low capability terminal equipment.

The embodiment of the application also provides a computer readable storage medium, wherein the storage medium stores a computer program, and the computer program is used for being executed by a processor of terminal equipment to realize the information processing method at the terminal equipment side.

Alternatively, the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives, solid State disk), optical disk, or the like. The random access memory may include ReRAM (Resistance Random Access Memory, resistive random access memory) and DRAM (Dynamic Random Access Memory ), among others.

The embodiment of the application also provides a chip, which comprises a programmable logic circuit and/or program instructions and is used for realizing the information processing method at the terminal equipment side when the chip runs on the terminal equipment.

The embodiment of the application also provides a computer program product or a computer program, wherein the computer program product or the computer program comprises computer instructions, the computer instructions are stored in a computer readable storage medium, and a processor of the terminal equipment reads and executes the computer instructions from the computer readable storage medium so as to realize the information processing method at the side of the terminal equipment.

It should be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct correspondence or an indirect correspondence between the two, or may indicate that there is an association between the two, or may indicate a relationship between the two and the indicated, configured, etc.

References herein to "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

In addition, the step numbers described herein are merely exemplary of one possible execution sequence among steps, and in some other embodiments, the steps may be executed out of the order of numbers, such as two differently numbered steps being executed simultaneously, or two differently numbered steps being executed in an order opposite to that shown, which is not limiting.

Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The foregoing description of the exemplary embodiments of the application is not intended to limit the application to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the application.

Claims

An information processing method, characterized in that the method is performed by a terminal device, the method comprising:

based on the time difference value, responding to the HARQ-ACK feedback;

the time difference is a difference between a first time point when the terminal equipment receives the feedback of the uplink HARQ-ACK and a second time point when the terminal equipment receives the last repeated transmission of the uplink transmission.
The method of claim 1, wherein the responding to the uplink HARQ-ACK feedback based on the time difference value comprises:

and responding to the uplink HARQ-ACK feedback based on the value between the time difference and the round trip transmission time RTT.
The method of claim 2, wherein the responding to the uplink HARQ-ACK feedback based on a magnitude between the time difference and RTT comprises:

and stopping the rest repeated transmission of the uplink transmission when the time difference value is smaller than the RTT and the repeated transmission of the uplink transmission is not finished yet.
The method of claim 2, wherein the responding to the uplink HARQ-ACK feedback based on a magnitude between the time difference and RTT comprises:

And stopping the Discontinuous Reception (DRX) uplink retransmission timer corresponding to the HARQ process of the uplink transmission under the condition that the time difference value is smaller than the RTT and the repeated transmission of the uplink transmission is ended.
The method of claim 2, wherein the responding to the uplink HARQ-ACK feedback based on a magnitude between the time difference and RTT comprises:

and stopping DRX uplink retransmission timers corresponding to all HARQ processes of the terminal equipment when the time difference value is larger than the RTT.
The method according to any one of claims 2 to 5, characterized in that the RTT is a value obtained by rounding one of the following parameters:

RTT value between the terminal device and the access network device;

the timing advance TA value of the terminal equipment;

RTT value between the terminal device and the satellite;

the sum of the RTT value between the terminal equipment and the access network equipment and the network processing time;

the sum of the TA value of the terminal equipment and the network processing time;

and the sum of RTT between the terminal equipment and the satellite and network processing time.
The method of claim 6, wherein the step of providing the first layer comprises,

The network processing time includes access network equipment processing time and/or satellite processing time.
The method according to claim 6 or 7, wherein,

the rounding is upward rounding or downward rounding.
A method according to any one of claims 6 to 8, wherein,

the rounding is in milliseconds.
The method according to any of claims 6 to 9, wherein the network processing time is carried in at least one of the following signalling:

a system message;

radio resource control, RRC, dedicated signaling;

a medium access control cell (MAC CE);

downlink control information DCI.
The method according to any one of claims 1 to 10, further comprising:

starting a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a third time point, wherein the third time point is the time point of the last repeated transmission of the uplink transmission sent by the terminal equipment;

or alternatively, the first and second heat exchangers may be,

and after a fourth time point, starting a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, wherein the fourth time point is a time point after the third time point.
The method according to any one of claims 1 to 11, wherein,

The uplink transmission comprises a Physical Uplink Shared Channel (PUSCH).
The method according to any one of claims 1 to 12, wherein,

the last retransmission refers to a retransmission closest to the first time point in time domain among the retransmissions that the uplink transmission has completed.
The method according to any of the claims 1 to 13, characterized in that the terminal device comprises at least one of the following types of terminal devices:

enhanced machine type communication eMTC terminal devices;

low capability terminal equipment.
An information processing apparatus, characterized in that the apparatus comprises: a response module;

the response module is used for responding to the HARQ-ACK feedback based on the time difference;

the time difference is a difference between a first time point when the terminal equipment receives the feedback of the uplink HARQ-ACK and a second time point when the terminal equipment receives the last repeated transmission of the uplink transmission.
The apparatus of claim 15, wherein the device comprises a plurality of sensors,

and the response module is used for responding to the uplink HARQ-ACK feedback based on the value between the time difference and the round trip transmission time RTT.
The apparatus of claim 16, wherein the device comprises a plurality of sensors,

and the response module is used for stopping the rest repeated transmission of the uplink transmission when the time difference value is smaller than the RTT and the repeated transmission of the uplink transmission is not finished yet.
The apparatus of claim 16, wherein the device comprises a plurality of sensors,

and the response module is used for stopping the Discontinuous Reception (DRX) uplink retransmission timer corresponding to the HARQ process of the uplink transmission when the time difference value is smaller than the RTT and the repeated transmission of the uplink transmission is finished.
The apparatus of claim 16, wherein the device comprises a plurality of sensors,

and the response module is used for stopping the DRX uplink retransmission timers corresponding to all HARQ processes of the terminal equipment when the time difference value is larger than the RTT.
The apparatus according to any one of claims 16 to 19, wherein the RTT is a value obtained by rounding one of the following parameters:

RTT value between the terminal device and the access network device;

the timing advance TA value of the terminal equipment;

RTT value between the terminal device and the satellite;

the sum of the RTT value between the terminal equipment and the access network equipment and the network processing time;

The sum of the TA value of the terminal equipment and the network processing time;

and the sum of RTT between the terminal equipment and the satellite and network processing time.
The apparatus of claim 20, wherein the device comprises a plurality of sensors,

the network processing time includes access network equipment processing time and/or satellite processing time.
The apparatus of claim 20 or 21, wherein the device comprises a plurality of sensors,

the rounding is upward rounding or downward rounding.
The apparatus according to any one of claims 20 to 22, wherein,

the rounding is in milliseconds.
The apparatus according to any of claims 20 to 23, wherein the network processing time is carried in at least one of the following signaling:

a system message;

radio resource control, RRC, dedicated signaling;

a medium access control cell (MAC CE);

downlink control information DCI.
The apparatus according to any one of claims 16 to 24, further comprising: a timer starting module;

the timer starting module is configured to start a DRX uplink retransmission timer corresponding to the uplink HARQ process after a third time point, where the third time point is a time point when the terminal device has sent the last retransmission of the uplink transmission;

Or alternatively, the first and second heat exchangers may be,

the timer starting module is configured to start a DRX uplink retransmission timer corresponding to the uplink transmission HARQ process after a fourth time point, where the fourth time point is a time point after the third time point.
The apparatus according to any one of claims 16 to 25, wherein,

the uplink transmission comprises a Physical Uplink Shared Channel (PUSCH).
The apparatus according to any one of claims 16 to 26, wherein,

the last retransmission refers to a retransmission closest to the first time point in time domain among the retransmissions that the uplink transmission has completed.
The apparatus according to any of claims 16 to 27, wherein the terminal device comprises at least one of the following types of terminal devices:

enhanced machine type communication eMTC terminal devices;

low capability terminal equipment.
A terminal device, characterized in that the terminal device comprises a processor;

the processor is used for responding to the HARQ-ACK feedback based on the time difference;

the time difference is a difference between a first time point when the terminal equipment receives the feedback of the uplink HARQ-ACK and a second time point when the terminal equipment receives the last repeated transmission of the uplink transmission.
A computer-readable storage medium, in which a computer program is stored for execution by a processor to implement the information processing method according to any one of claims 1 to 14.
A chip comprising programmable logic circuits and/or program instructions for implementing the information processing method according to any one of claims 1 to 14 when the chip is running.
A computer program product or computer program, characterized in that it comprises computer instructions stored in a computer-readable storage medium, from which a processor reads and executes the computer instructions to implement the information processing method according to any one of claims 1 to 14.