WO2023279295A1 - Information processing method and apparatus, terminal device, and storage medium - Google Patents
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H—ELECTRICITY
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- H04W72/12—Wireless traffic scheduling
Definitions
- the embodiments of the present application relate to the field of communication technologies, and in particular, to an information processing method, device, terminal device, and storage medium.
- Uplink Hybrid Automatic Repeat Request-Acknowledgment (HARQ-ACK) feedback is a kind of feedback sent by the network device to the terminal device based on the reception of the Physical Uplink Shared Channel (PUSCH). Feedback.
- HARQ-ACK Uplink Hybrid Automatic Repeat Request-Acknowledgment
- Non-Terrestrial Network NTN
- RTT Round Trip Time
- Embodiments of the present application provide an information processing method, device, terminal equipment, and storage medium, which can clarify the response behavior of the terminal equipment after receiving uplink HARQ-ACK feedback. Described technical scheme is as follows:
- an information processing method is provided, the method is executed by a terminal device, and the method includes:
- the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
- an information processing device includes: a response module;
- the response module is configured to respond to the uplink HARQ-ACK feedback based on the time difference
- the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
- a terminal device includes a processor
- the processor is configured to respond to uplink HARQ-ACK feedback based on the time difference
- the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
- a computer-readable storage medium is provided, and a computer program is stored in the storage medium, and the computer program is used for execution by a processor, so as to implement the above information processing method on the terminal device side.
- a chip is provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement the above information processing method on the terminal device side.
- a computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and a processor reads from the The computer-readable storage medium reads and executes the computer instructions, so as to implement the above information processing method on the terminal device side.
- a response method to uplink HARQ-ACK feedback is provided.
- a terminal device receives uplink HARQ-ACK feedback fed back by a network device, it determines a response method to uplink HARQ-ACK feedback based on a time difference, wherein, The time difference is the difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the last repeated transmission of the uplink transmission, which clarifies the behavior of the terminal device, and, because the uplink HARQ - When responding with ACK feedback, the time difference is taken into account in response to the signal transmission delay between the terminal device and the network side in the NTN system, which ensures that the terminal device can correctly respond to the uplink HARQ-ACK based on the time difference Feedback in response.
- 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 device provided by an exemplary embodiment of the present application.
- Fig. 8 is a schematic structural diagram of a terminal device provided by an exemplary embodiment of the present application.
- the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
- the evolution of the technology and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.
- Satellite communication is not restricted by the user's region. For example, general land communication cannot cover areas such as oceans, mountains, deserts, etc. that cannot be equipped with communication equipment or are not covered by communication due to sparse population. For satellite communication, due to a Satellites can cover a large area of the ground, and satellites can orbit the earth, so theoretically every corner of the earth can be covered by satellite communications. Secondly, satellite communication has great social value.
- Satellite communication can be covered at a lower cost in remote mountainous areas, poor and backward countries or regions, so that people in these regions can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital gap with developed regions and promoting development of these areas.
- the distance of satellite communication is long, and the cost of communication does not increase significantly with the increase of communication distance; finally, the stability of satellite communication is high, and it is not limited by natural disasters.
- LEO Low-Earth Orbit
- MEO Medium-Earth Orbit
- GEO Geostationary Earth Orbit
- HEO High Elliptical Orbit
- the altitude range of low-orbit satellites is 500km to 1500km, and the corresponding orbital period is about 1.5 hours to 2 hours.
- the signal propagation delay of single-hop communication between users is generally less than 20ms.
- the maximum satellite visible time is 20 minutes.
- the signal propagation distance is short, the link loss is small, and the requirements for the transmission power of the user terminal equipment are not high.
- Satellites in geosynchronous orbit have an orbital altitude of 35786km and a period of 24 hours around the earth.
- the signal propagation delay of single-hop communication between users is generally 250ms.
- satellites use multi-beams to cover the ground.
- a satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover tens to hundreds of kilometers in diameter. ground area.
- NTN networks There are at least two kinds of NTN networks: a transparent payload NTN network, as shown in FIG. 1 ; and a regenerative payload (regenerative payload) NTN network, as shown in FIG. 2 .
- a transparent payload NTN network as shown in FIG. 1
- a regenerative payload (regenerative payload) NTN network as shown in FIG. 2 .
- the NTN network consists of the following network elements:
- Feeder link The link used for communication between the gateway and the satellite.
- Service link a link used for communication between the terminal and the satellite.
- ⁇ Satellite From the functions it provides, it can be divided into two types: transparent transmission load and regenerative load.
- Transparent transmission load only provide wireless frequency filtering, frequency conversion and amplification functions, only provide transparent forwarding of signals, and will not change the waveform signal it forwards.
- Regenerative load In addition to providing radio frequency filtering, frequency conversion and amplification functions, it can also provide demodulation/decoding, routing/conversion, encoding/modulation functions. It has part or all of the functions of the base station.
- Inter-Satellite Links Exists in regenerative load scenarios.
- eMTC Enhanced Machine Type Communication
- MTC Physical Downlink Control Channel (MTC Physical Downlink Control Channel, MPDCCH) is used to send scheduling information, based on LTE R11 enhanced physical downlink control channel (Enhanced Physical Downlink Control Channel, EPDCCH) design, terminal equipment based on demodulation reference signal (Demodulation Reference Signal, DMRS) to receive control information, support functions such as control information precoding and beamforming, 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 ⁇ , each ECCE is composed of multiple Enhanced Resource Element Groups (EREG).
- the maximum number of repetitions Rmax of MPDCCH can be configured, and the value range is ⁇ 1, 2, 4, 8, 16, 32, 64, 128, 256 ⁇ .
- the eMTC Physical Downlink Shared Channel is basically the same as the LTE PDSCH channel, but repetition and inter-narrowband frequency hopping are added to improve PDSCH channel coverage and interference averaging.
- eMTC terminal equipment can work in Mode A and Mode B: in Mode A, the maximum number of uplink and downlink Hybrid Automatic Repeat Request (HARQ) processes is 8, and in this mode, the number of PDSCH repetitions is ⁇ 1, 4, 16, 32 ⁇ ; In Mode B mode, the maximum number of uplink and downlink HARQ processes is 2. In this mode, the number of PDSCH repetitions is ⁇ 4, 16, 64, 128, 256, 512, 1024, 2048 ⁇ .
- HARQ Hybrid Automatic Repeat Request
- the eMTC Physical Uplink Control Channel (PUCCH) frequency domain resource format is the same as that of LTE, and supports frequency hopping and repeated transmission.
- Mode A supports sending HARQ-ACK/NACK, scheduling request (Scheduling Request, SR), channel state information (Channel State Information, CSI) on PUCCH, that is, supports PUCCH format 1/1a/2/2a, and the number of repetitions supported is ⁇ 1,2,4,8 ⁇ ;
- Mode B does not support CSI feedback, that is, it only supports PUCCH format 1/1a, and the number of repetitions supported is ⁇ 4,8,16,32 ⁇ .
- eMTC Physical Uplink Shared Channel is the same as LTE, but the maximum number of schedulable resource blocks (Resource Block, RB) is limited to 6.
- Mode A and Mode B are supported.
- the number of repetitions of Mode A can be ⁇ 8, 16, 32 ⁇ , supporting up to 8 processes, and the rate is high;
- Mode B covers a longer distance, and the number of repetitions can be ⁇ 192, 256, 384, 512, 768, 1024, 1536, 2048 ⁇ , supporting a maximum of 2 uplink HARQ processes.
- the network can configure the DRX function for the terminal equipment, so that the terminal equipment monitors the PDCCH discontinuously, so as to achieve the purpose of power saving of the terminal equipment.
- Each Media Access Control (MAC) entity has a DRX configuration, and the DRX configuration parameters include:
- -drx cycle DRX cycle
- -drx-onDurationTimer DRX duration timer
- -drx-InactivityTimer DRX inactivity timer
- -drx-RetransmissionTimer DRX downlink retransmission timer, each downlink HARQ process except the broadcast HARQ process corresponds to a drx-RetransmissionTimer;
- each uplink HARQ process corresponds to a drx-ULRetransmissionTimer.
- the terminal device If the terminal device is configured with DRX, the terminal device needs to monitor the PDCCH during the DRX activation period.
- the DRX activation period includes the following situations:
- DRX duration timer drx-InactivityTimer (DRX inactivity timer), drx-RetransmissionTimer (DRX downlink retransmission timer), drx-RetransmissionTimerShortTTI (DRX downlink short TTI retransmission timer), drx- ULRetransmissionTimer (DRX uplink retransmission timer), drx-ULRetransmissionTimerShortTTI (DRX uplink short TTI retransmission timer) and mac-ContentionResolutionTimer (contention resolution timer) Any one of the 7 timers is running.
- PUCCH/SPUCCH Short PUCCH
- the terminal device has not received the cell-radio network temporary identifier (Cell-Radio Network Temporary Identifier, C-RNTI) scrambled PDCCH indication after successfully receiving the random access response an initial transfer.
- C-RNTI Cell-Radio Network Temporary Identifier
- An uplink grant (UL grant) can be received for a pending HARQ retransmission, and there is data in the HARQ buffer (buffer) of the synchronous HARQ process.
- the terminal device determines the time to start drx-onDurationTimer according to whether it is currently in a short DRX cycle (short DRX cycle) or a long DRX cycle (long DRX cycle).
- the specific regulations are as follows:
- the conditions for the terminal device to start or restart the HARQ RTT Timer are:
- the terminal device receives a PDCCH indicating downlink transmission, or if the terminal has a configured downlink grant in this subframe, then:
- the terminal device is an eMTC terminal device, then:
- the terminal device If the physical layer indicates that multiple transmission block (Transport Block, TB) transmissions are scheduled, the terminal device starts the transmission in the multiple TBs in the subframe where the last repeated transmission of the PDSCH of the last TB of the multiple TBs is received.
- the HARQ RTT Timer corresponding to the downlink HARQ process used by the PDSCH of each TB.
- the terminal device 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.
- the terminal device starts the DRX downlink retransmission timer (drx-RetransmissionTimer) corresponding to the downlink HARQ process.
- the conditions for the terminal device to start or restart the UL HARQ RTT Timer are:
- the terminal device receives a PDCCH indicating an uplink transmission using an asynchronous HARQ process, or if the terminal device has a configured uplink grant for an asynchronous HARQ process in this subframe, or if the terminal device receives a PDCCH indicating an uplink transmission using an automatic HARQ process transfer, then:
- the terminal device If the physical layer indicates that multiple TB transmissions are scheduled, the terminal device starts the PUSCH of each of the multiple TBs in the subframe where the last repeated transmission of the PUSCH of the last TB of the multiple TBs is completed The UL HARQ RTT Timer corresponding to the uplink HARQ process.
- the terminal device starts the 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.
- the terminal device starts or restarts the drx-ULRetransmissionTimer corresponding to the uplink HARQ process used in the subframe where the last repeated transmission of the PUSCH is completed.
- the terminal device If the UL HARQ RTT Timer corresponding to an uplink HARQ process times out, the terminal device starts the drx-ULRetransmissionTimer corresponding to the uplink HARQ process.
- PUSCH transmission in Mode B requires 2048 repeated transmissions.
- the network device receives the PUSCH, it tries to decode the repeated transmissions one by one, that is, the network device does not start to decode after receiving all 2048 repeated transmissions, so the network device may successfully receive after receiving part of the repeated transmissions. PUSCH.
- the network equipment can feed back an uplink HARQ-ACK feedback as soon as possible, so that the eMTC terminal equipment can stop the subsequent repeated transmission of PUSCH in time after receiving it, so as to achieve the purpose of energy saving .
- the time for the network equipment to respond to the uplink HARQ-ACK feedback mainly considers the processing delay after the terminal equipment completes the PUSCH transmission, which is usually a few milliseconds, and is greater than the RTT of the signal transmission between the terminal equipment and the network. During the processing time, respond to the subsequent scheduling of the terminal device according to the uplink reception situation.
- the signal propagation delay between the terminal equipment and the network in NTN is greatly increased, and its RTT is much larger than the terminal processing time considered in the existing terrestrial network standards, which also gives the uplink HARQ-ACK feedback mechanism New questions were raised.
- the network successfully receives the PUSCH after receiving a partial repetition (repetition).
- the terminal device may transmit the PUSCH after receiving the uplink HARQ-ACK feedback (ie All repetitions) have ended, at which point the behavior of the end device needs to be defined.
- a response method for uplink HARQ-ACK feedback is provided.
- the response method to the uplink HARQ-ACK feedback is determined based on the time difference, where the time difference is the first time point when the terminal device receives the uplink HARQ-ACK feedback and the latest uplink transmission.
- the difference between the second time points of a repeated transmission clarifies the behavior of the terminal device, and since the time difference is considered when responding to the uplink HARQ-ACK feedback, it is guaranteed that the terminal device can Correctly respond to the uplink HARQ-ACK feedback.
- FIG. 3 shows a flowchart of an information processing method provided by an embodiment of the present application.
- the method can be applied to a terminal device in the communication system shown in FIG. 1 or FIG. 2 .
- the method may include the steps of:
- Step 302 Respond to the uplink HARQ-ACK feedback based on the time difference, where the time difference is the difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission difference.
- the uplink transmission supports repeated transmission (repetition), that is, for the same uplink transmission, the uplink transmission is repeatedly transmitted.
- the terminal device determines a response mode to the uplink HARQ-ACK feedback based on the time difference between the first time point of receiving the uplink HARQ-ACK feedback sent by the network device and the second time point of the latest repeated transmission of the uplink transmission, wherein , the first time point is a time point not earlier than the second time point in the time domain position.
- the first time point is a time point not earlier than the second time point in the time domain position.
- the first time point is after the second time point in the time domain position; it can also be understood as the first time point The time point is at the same temporal position as the second time point.
- the second time point can be understood as the start moment of the latest repeated transmission of the uplink transmission, or it can be understood as the middle moment of the latest repeated transmission of the uplink transmission, or it can be understood as the latest repeated transmission of the uplink transmission The end moment of the transfer.
- the uplink HARQ-ACK feedback is mainly aimed at the following usage scenarios: first, it is aimed at the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving the uplink transmission using partial repeated transmission. Second, for the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmissions of all uplink HARQ processes.
- the time difference is used to assist the terminal device in determining a usage scenario of the uplink HARQ-ACK feedback. Further, the terminal device responds to the uplink HARQ-ACK feedback based on the determined usage scenario of the uplink HARQ-ACK feedback.
- the uplink transmission includes: PUSCH.
- the repeated transmission corresponds to the number of repetitions.
- the number of repetitions supported by the uplink transmission is ⁇ 8, 16, 32 ⁇ .
- the number of repetitions supported by the uplink transmission is ⁇ 192, 256, 384, 512, 768, 1024, 1536, 2048 ⁇ .
- the latest repeated transmission refers to the repeated transmission that is closest to the first time point in the time domain among the repeated transmissions that have completed the uplink transmission.
- the total number of repetitions of the PUSCH is 8, and the terminal device has received the uplink HARQ-ACK feedback before sending the 4th repeated transmission after sending the 3rd repeated transmission, then the latest repeated transmission refers to For the third repeated transmission, correspondingly, the 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 third repeated transmission.
- the total number of repetitions of PUSCH is 8, and the terminal device receives the uplink HARQ-ACK feedback after sending the eighth repeated transmission, then the latest repeated transmission refers to the eighth repeated transmission, correspondingly,
- the 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 eighth repeated transmission.
- the terminal equipment includes at least one of the following types of terminal equipment: eMTC terminal equipment; low-capability terminal equipment.
- the resource used by the terminal device to send the uplink transmission includes: the resource corresponding to the uplink transmission of the first asynchronous HARQ process indicated by the physical downlink control channel PDCCH received by the terminal device; or, the terminal device for the second asynchronous HARQ process There are resources corresponding to the configured uplink grant; or, resources corresponding to the uplink transmission of the automatic HARQ process indicated by the PDCCH received by the terminal device.
- the method provided in this embodiment provides a response method to the uplink HARQ-ACK feedback.
- the terminal device receives the uplink HARQ-ACK feedback fed back by the network device, based on the time difference, determine Response to uplink HARQ-ACK feedback, where the time difference is the difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
- the time difference is the difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
- the terminal device responds to the uplink HARQ-ACK feedback based on the value between the time difference and the RTT.
- the terminal determines the usage scenario of the uplink HARQ-ACK feedback based on the value between the time difference and the RTT, and then responds to the uplink HARQ-ACK feedback based on the usage scenario of the uplink HARQ-ACK feedback.
- the uplink HARQ-ACK feedback is mainly aimed at the following usage scenarios: first, it is aimed at the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving the uplink transmission using partial repeated transmission. Second, an exemplary description is given for a scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmissions of all uplink HARQ processes.
- the time difference is less than the RTT, for the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmission using partial repeated transmission.
- the time at which the terminal device receives the uplink HARQ-ACK feedback is less than the RTT from the time of the latest repeated transmission of the uplink transmission, which means that the network device successfully decodes the uplink transmission using partial repetition. At this time, the behavior of the network device is to expect to pass The uplink HARQ-ACK feedback is used to terminate the subsequent repeated transmission of the uplink transmission.
- step 301 is replaced by step 301a: when the time difference is less than the RTT and the repeated transmission of the uplink transmission has not ended, stop the remaining repeated transmission of the uplink transmission.
- step 301 is replaced by step 301b: when the time difference is less than RTT and the repeated transmission of uplink transmission has ended, stop the DRX uplink retransmission timer corresponding to the HARQ process of uplink transmission.
- the repeated transmission of the uplink transmission corresponds to the number of repetitions
- the repeated transmission of the uplink transmission has not ended means: the number of repeated transmissions of the uplink transmission that the terminal device has sent and completed is less than the number of repetitions; the repeated transmission of the uplink transmission has ended It refers to: the number of repeated transmissions of the uplink transmission that the terminal device has sent is equal to the number of repetitions; the remaining repeated transmission of the uplink transmission refers to: in the number of repeated transmissions of the uplink transmission, minus the number of repeated transmissions that the terminal device has sent Repeat the transmission of the uplink transmission, and repeat the transmission of the rest.
- the number of repeated transmissions of the uplink transmission is 8 in total.
- the terminal device stops the remaining 7th retransmission and 8th retransmission.
- the number of repeated transmissions of the uplink transmission is 8 in total.
- the terminal device stops the DRX corresponding to the HARQ process of the uplink transmission. Uplink retransmission timer.
- the usage scenario representing uplink HARQ-ACK feedback is the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmission using partial repeated transmission.
- the behavior of the network device is It is expected to terminate the subsequent repeated transmission of the uplink transmission through the uplink HARQ-ACK feedback. If the repeated transmission of the uplink transmission has not ended, stop the remaining repeated transmission of the uplink transmission. After the repeated transmission of the uplink transmission has ended and the uplink When the DRX uplink retransmission timer corresponding to the transmitted HARQ process is running, stop the DRX uplink retransmission timer corresponding to the running HARQ process, so as to achieve the purpose of energy saving of the terminal device.
- the terminal device starts the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, and the third time point is the time point when the terminal device sends the last repeated transmission of the uplink transmission; or, After the fourth time point, the terminal device starts the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, and the fourth time point is a time point after the third time point.
- RTT is a value obtained by rounding one of the following parameters:
- the RTT value between the terminal device and the access network device is the RTT value between the terminal device and the access network device
- Timing Advance (Timing Advance, TA) value of the terminal equipment
- the RTT value between the terminal device and the satellite is the RTT value between the terminal device and the satellite
- the network processing time includes access network device processing time and/or satellite processing time.
- rounding is round up or round down.
- the network processing time is carried in at least one of the following signaling: system message; radio resource control (Radio Resource Control, RRC) dedicated signaling; MAC control letter element (Control Element, CE); downlink control information ( Downlink Control Information, DCI).
- RRC Radio Resource Control
- CE MAC control letter element
- DCI Downlink Control Information
- the terminal device When receiving the uplink grant (UL grant) 401, the terminal device sends PUSCH 402 based on the scheduling of the uplink grant 401.
- the HARQ process corresponding to PUSCH 402 is marked as HARQ ID 0, and after the last repeated transmission of PUSCH 402 is completed After a period of time, the DRX uplink retransmission timer corresponding to HARQ ID 0 is started.
- the terminal device receives the uplink grant 403, based on the scheduling of the uplink grant 403, it sends PUSCH 404, and the HARQ process mark corresponding to PUSCH 404 It is HARQ ID 1, and after a period of time after the last repeated transmission of PUSCH 404 is completed, start the DRX uplink retransmission timer corresponding to HARQ ID 1.
- the terminal device completes the last repeated transmission of PUSCH 404 at time point t1, and receives uplink HARQ-ACK feedback 405 at time point t2, and the time length between time point t1 and time point t2 is the time difference, as can be seen from Figure 4 , the time difference is less than RTT, and the PUSCH 404 of the terminal device has completed all repeated transmissions, the terminal device does not need to continue to monitor the retransmission scheduling for the HARQ process corresponding to the PUSCH 404, so it needs to stop the DRX uplink corresponding to the running HARQ ID 1 Retransmission timer to achieve the purpose of energy saving of terminal equipment.
- the terminal device When receiving the uplink authorization 501, the terminal device sends PUSCH 502 based on the scheduling of the uplink authorization 501, and the HARQ process corresponding to PUSCH 502 is marked as HARQ ID 0, and after a period of time after the last repeated transmission of PUSCH 502 is completed , start the DRX uplink retransmission timer corresponding to HARQ ID 0, and then, when the terminal device receives the uplink grant 503, based on the scheduling of the uplink grant 503, send PUSCH 504, and the HARQ process corresponding to PUSCH 504 is marked as HARQ ID 1 .
- the terminal device completes a repeated transmission of PUSCH 504 at time point t3, and receives uplink HARQ-ACK feedback 505 at subsequent time point t4, and the time length between time point t3 and time point t4 is the time difference, as shown in Figure 5 It can be seen that if the time difference is less than the RTT, and the PUSCH 504 of the terminal device has not completed all repeated transmissions, the terminal device does not need to transmit the remaining repeated transmissions of the PUSCH 504, so as to achieve the purpose of energy saving of the terminal device.
- the method provided in this embodiment when the time difference is less than RTT, represents the use scenario of uplink HARQ-ACK feedback is the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmission using partial repeated transmission , at this time, the behavior of the network device is to expect to terminate the subsequent repeated transmission of the uplink transmission through the uplink HARQ-ACK feedback, then stop the remaining repeated transmission of the uplink transmission when the repeated transmission of the uplink transmission has not ended.
- the time difference is greater than the RTT, for the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmissions of all uplink HARQ processes.
- the moment when the terminal device receives the uplink HARQ-ACK feedback is greater than the RTT from the last retransmission of the uplink transmission, which means that the network device has received the retransmission of the uplink transmission of all uplink HARQ processes including the uplink transmission, and succeeded. Decode all uplink transmissions. At this time, the behavior of the network device is to terminate the retransmission scheduling monitoring of all HARQ processes through uplink HARQ-ACK feedback.
- step 301 is replaced with step 301c: when the time difference is greater than the RTT, stop the DRX uplink retransmission timers corresponding to all HARQ processes of the terminal device.
- the usage scenario of uplink HARQ-ACK feedback is the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmissions of all uplink HARQ processes.
- the behavior of the network device It is expected to terminate the retransmission scheduling monitoring of all HARQ processes through uplink HARQ-ACK feedback, then the terminal device stops the DRX uplink retransmission timers corresponding to all HARQ processes, so as to achieve the purpose of energy saving of the terminal device.
- the terminal device starts the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, and the third time point is the time point when the terminal device sends the last repeated transmission of the uplink transmission; or, After the fourth time point, the terminal device starts the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, and the fourth time point is a time point after the third time point.
- RTT is a value obtained by rounding one of the following parameters:
- the RTT value between the terminal device and the access network device is the RTT value between the terminal device and the access network device
- the RTT value between the terminal device and the satellite is the RTT value between the terminal device and the satellite
- the network processing time includes access network device processing time and/or satellite processing time.
- rounding is round up or round down.
- the network processing time is carried in at least one of the following signaling: system message; RRC dedicated signaling; MAC CE; DCI.
- the terminal device When receiving the uplink grant 601, the terminal device sends PUSCH 602 based on the scheduling of the uplink grant 601.
- the HARQ process corresponding to PUSCH 602 is marked as HARQ ID 0, and after a period of time after the last repeated transmission of PUSCH 602 is completed , start the DRX uplink retransmission timer corresponding to HARQ ID 0, and then, when the terminal device receives the uplink grant 603, based on the scheduling of the uplink grant 603, send PUSCH 604, and the HARQ process corresponding to PUSCH 604 is marked as HARQ ID 1 , and after a period of time after the last repeated transmission of PUSCH 604 is completed, start the DRX uplink retransmission timer corresponding to HARQ ID 1.
- the terminal device completes the last repeated transmission of PUSCH 604 at time point t5, and receives uplink HARQ-ACK feedback 605 at time point t6, and the time length between time point t5 and time point t6 is the time difference, as shown in Figure 6 , the time difference is greater than RTT, which means that the network device has received all the repeated transmissions of the PUSCH of all uplink HARQ processes and successfully decoded all the PUSCHs. At this time, the behavior of the network device is to expect to terminate the retransmission of all HARQ processes through the uplink HARQ-ACK feedback Schedule monitoring.
- the terminal device needs to stop all DRX uplink retransmission timers that are running in the uplink HARQ process, including: the DRX uplink retransmission timer corresponding to HARQ ID 0 and the DRX uplink retransmission timer corresponding to HARQ ID 1, so as to reach the terminal device
- the terminal device needs to stop all DRX uplink retransmission timers that are running in the uplink HARQ process, including: the DRX uplink retransmission timer corresponding to HARQ ID 0 and the DRX uplink retransmission timer corresponding to HARQ ID 1, so as to reach the terminal device
- the purpose of energy saving including: the DRX uplink retransmission timer corresponding to HARQ ID 0 and the DRX uplink retransmission timer corresponding to HARQ ID 1, so as to reach the terminal device The purpose of energy saving.
- the method provided in this embodiment when the time difference is greater than RTT, represents the usage scenario of uplink HARQ-ACK feedback is that the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmissions of all uplink HARQ processes Scenario, at this time, the behavior of the network device is to expect to terminate the retransmission scheduling monitoring of all HARQ processes through the uplink HARQ-ACK feedback, then the terminal device stops the DRX uplink retransmission timer corresponding to all HARQ processes, so as to achieve energy saving of the terminal device Purpose.
- FIG. 7 shows a block diagram of an information processing device provided by an embodiment of the present application.
- the apparatus has the function of implementing the above example method on the terminal device side, and the function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
- the device can be the terminal equipment introduced above, or it can be set in the terminal equipment. As shown in FIG. 7, the device 700 may include: a response module 702;
- the response module 702 is configured to respond to the uplink HARQ-ACK feedback based on the time difference
- the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
- the responding module 702 is configured to respond to the uplink HARQ ACK feedback based on the value between the time difference and the RTT.
- the response module 702 is configured to stop the uplink transmission when the time difference is less than the RTT and the repeated transmission of the uplink transmission has not ended The rest are repeated for transmission.
- the response module 702 is configured to stop the HARQ transmission of the uplink transmission when the time difference is less than the RTT and the repeated transmission of the uplink transmission has ended.
- the discontinuous reception DRX uplink retransmission timer corresponding to the process.
- 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.
- the RTT is a value obtained by rounding one of the following parameters:
- the RTT value between the terminal device and the access network device is the RTT value between the terminal device and the access network device
- the TA value of the terminal device
- the RTT value between the terminal device and the satellite is the RTT value between the terminal device and the satellite
- the network processing time includes access network device processing time and/or satellite processing time.
- the rounding is rounding up or rounding down.
- the rounding is in milliseconds.
- the network processing time is carried in at least one of the following signaling: system message; RRC dedicated signaling; MAC CE; DCI.
- the device further includes: a timer starting module
- the timer starting module is configured to start a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a third time point, where the third time point is when the terminal device finishes sending the uplink transmission The time point of the last repeated transmission of ;
- the timer starting module is configured to start the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a fourth time point, where the fourth time point is one after the third time point point in time.
- the uplink transmission includes PUSCH.
- the latest repeated transmission refers to the repeated transmission that is closest to the first time point in the time domain among the repeated transmissions that have been completed in the uplink transmission.
- the terminal equipment includes at least one of the following types of terminal equipment:
- the device provided by the above embodiment realizes its functions, it only uses the division of the above-mentioned functional modules as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
- FIG. 8 shows a schematic structural diagram of a terminal device provided by 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 can be implemented as a transceiver 806, and the transceiver 806 can be a communication chip.
- the memory 804 is connected to the processor 801 through the bus 805 .
- the memory 804 may be used to store a computer program, and the processor 801 is used to execute the computer program, so as to implement various steps performed by the terminal device in the foregoing method embodiments.
- the memory 804 can be realized by any type of volatile or nonvolatile storage device or their combination, and the volatile or nonvolatile storage device includes but not limited to: RAM (Random-Access Memory, Random Access Memory) And ROM (Read-Only Memory, read-only memory), EPROM (Erasable Programmable Read-Only Memory, erasable programmable read-only memory), EEPROM (Electrically Erasable Programmable Read-Only Memory, electrically erasable programmable read-only memory memory), flash memory or other solid-state storage technology, CD-ROM (Compact Disc Read-Only Memory, CD-ROM), DVD (Digital Video Disc, high-density digital video disc) or other optical storage, tape cartridges, tapes, disks storage or other magnetic storage devices.
- RAM Random-Access Memory
- ROM Read-Only Memory
- EPROM Erasable Programmable Read-Only Memory, erasable programmable read-only memory
- EEPROM Electrically Erasable Programmable Read-Only
- the processor 801 is configured to respond to the uplink HARQ-ACK feedback based on the time difference;
- the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
- the processor 801 is configured to respond to the uplink HARQ ACK feedback based on a value between the time difference and the RTT.
- the processor 801 is configured to stop the remaining repeated transmission of the uplink transmission when the time difference is smaller than the RTT and the repeated transmission of the uplink transmission has not ended.
- the processor 801 is configured to stop the discontinuous process corresponding to the HARQ process of the uplink transmission when the time difference is less than the RTT and the repeated transmission of the uplink transmission has ended.
- Receive DRX uplink retransmission timer Receive DRX uplink retransmission timer.
- 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.
- the RTT is a value obtained by rounding one of the following parameters:
- the RTT value between the terminal device and the access network device is the RTT value between the terminal device and the access network device
- the TA value of the terminal device
- the RTT value between the terminal device and the satellite is the RTT value between the terminal device and the satellite
- the network processing time includes access network device processing time and/or satellite processing time.
- the rounding is rounding up or rounding down.
- the rounding is in milliseconds.
- the network processing time is carried in at least one of the following signaling: system message; RRC dedicated signaling; MAC CE; DCI.
- the processor 801 is configured to start a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a third time point, where the third time point is when the terminal device finishes sending all The time point of the last repeated transmission of the above-mentioned uplink transmission;
- the processor 801 is configured to start a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a fourth time point, where the fourth time point is a time after the third time point point.
- the uplink transmission includes PUSCH.
- the latest repeated transmission refers to the repeated transmission that is closest to the first time point in the time domain among the repeated transmissions that have been completed in the uplink transmission.
- the terminal equipment includes at least one of the following types of terminal equipment:
- An embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor of a terminal device, so as to implement the above information processing method on the terminal device side.
- the computer-readable storage medium may include: ROM (Read-Only Memory, read-only memory), RAM (Random-Access Memory, random access memory), SSD (Solid State Drives, solid state drive) or an optical disc, etc.
- the random access memory may include ReRAM (Resistance Random Access Memory, resistive random access memory) and DRAM (Dynamic Random Access Memory, dynamic random access memory).
- the embodiment of the present application also provides a chip, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on the terminal device, it is used to implement the above information processing method on the terminal device side.
- the embodiment of the present application also provides a computer program product or computer program, the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor of the terminal device reads from the computer The readable storage medium reads and executes the computer instructions, so as to implement the above information processing method on the terminal device side.
- the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
- a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
- the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
- the "plurality” mentioned herein means two or more.
- “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
- the character “/” generally indicates that the contextual objects are an "or” relationship.
- the numbering of the steps described herein only exemplarily shows a possible sequence of execution among the steps.
- the above-mentioned steps may not be executed according to the order of the numbers, such as two different numbers
- the steps are executed at the same time, or two steps with different numbers are executed in the reverse order as shown in the illustration, which is not limited in this embodiment of the present application.
- the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof.
- the 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.
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Abstract
The present application relates to the technical field of communications, and discloses an information processing method and apparatus, a terminal device, and a storage medium. The method is performed by the terminal device. The method comprises: responding to an uplink HARQ-ACK feedback on the basis of a time difference, wherein the time difference is a difference between a first time point when the terminal device receives the uplink HARQ-ACK feedback and a second time point of the latest repeated transmission of uplink transmission. In view of the long delay of wireless signal transmission between the terminal device and the network in an NTN system, on the basis of the solution provided in embodiments of the present application, the behavior of the terminal device can be specified when the uplink HARQ-ACK feedback is received.
Description
本申请实施例涉及通信技术领域,特别涉及一种信息处理方法、装置、终端设备及存储介质。The embodiments of the present application relate to the field of communication technologies, and in particular, to an information processing method, device, terminal device, and storage medium.
上行混合自动重传请求(Hybrid Automatic Repeat Request-Acknowledgement,HARQ-ACK)反馈(feedback)是网络设备基于对物理上行共享信道(Physical Uplink Shared Channel,PUSCH)的接收情况,发送给终端设备的一种反馈信息。Uplink Hybrid Automatic Repeat Request-Acknowledgment (HARQ-ACK) feedback (feedback) is a kind of feedback sent by the network device to the terminal device based on the reception of the Physical Uplink Shared Channel (PUSCH). Feedback.
在非地面网络(Non-Terrestrial Network,NTN)***中,由于终端设备与网络设备之间的信号传播时延大幅增加,其往返传输时间(Round Trip Time,RTT)远大于现有地面网络标准中考虑的终端处理时间。在NTN***中,终端设备如何基于上述情况对接收到的上行HARQ-ACK反馈进行响应,相关技术尚未提供较好的解决方案。In the non-terrestrial network (Non-Terrestrial Network, NTN) system, because the signal propagation delay between the terminal equipment and the network equipment is greatly increased, its round-trip transmission time (Round Trip Time, RTT) is much longer than that in the existing terrestrial network standard. Consider terminal processing time. In the NTN system, how the terminal equipment responds to the received uplink HARQ-ACK feedback based on the above situation, related technologies have not yet provided a better solution.
发明内容Contents of the invention
本申请实施例提供了一种信息处理方法、装置、终端设备及存储介质,可以明确终端设备在接收到上行HARQ-ACK反馈之后的响应行为。所述技术方案如下:Embodiments of the present application provide an information processing method, device, terminal equipment, and storage medium, which can clarify the response behavior of the terminal equipment after receiving uplink HARQ-ACK feedback. Described technical scheme is as follows:
根据本申请实施例的一个方面,提供了一种信息处理方法,所述方法由终端设备执行,所述方法包括:According to an aspect of an embodiment of the present application, an information processing method is provided, the method is executed by a terminal device, and the method includes:
基于时间差值,对上行HARQ-ACK反馈进行响应;Respond to the uplink HARQ-ACK feedback based on the time difference;
其中,所述时间差值是所述终端设备接收所述上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值。Wherein, the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
根据本申请实施例的一个方面,提供了一种信息处理装置,所述装置包括:响应模块;According to an aspect of an embodiment of the present application, an information processing device is provided, and the device includes: a response module;
所述响应模块,用于基于时间差值,对上行HARQ-ACK反馈进行响应;The response module is configured to respond to the uplink HARQ-ACK feedback based on the time difference;
其中,所述时间差值是所述终端设备接收所述上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值。Wherein, the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
根据本申请实施例的一个方面,提供了一种终端设备,所述终端设备包括处理器;According to an aspect of an embodiment of the present application, a terminal device is provided, and the terminal device includes a processor;
所述处理器,用于基于时间差值,对上行HARQ-ACK反馈进行响应;The processor is configured to respond to uplink HARQ-ACK feedback based on the time difference;
其中,所述时间差值是所述终端设备接收所述上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值。Wherein, the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
根据本申请实施例的一个方面,提供了一种计算机可读存储介质,所述存 储介质中存储有计算机程序,所述计算机程序用于处理器执行,以实现上述终端设备侧的信息处理方法。According to an aspect of an embodiment of the present application, a computer-readable storage medium is provided, and a computer program is stored in the storage medium, and the computer program is used for execution by a processor, so as to implement the above information processing method on the terminal device side.
根据本申请实施例的一个方面,提供了一种芯片,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片运行时,用于实现上述终端设备侧的信息处理方法。According to an aspect of an embodiment of the present application, a chip is provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement the above information processing method on the terminal device side.
根据本申请实施例的一个方面,提供了一种计算机程序产品或计算机程序,所述计算机程序产品或计算机程序包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质读取并执行所述计算机指令,以实现上述终端设备侧的信息处理方法。According to an aspect of the embodiments of the present application, a computer program product or computer program is provided, the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and a processor reads from the The computer-readable storage medium reads and executes the computer instructions, so as to implement the above information processing method on the terminal device side.
本申请实施例提供的技术方案可以带来如下有益效果:The technical solutions provided in the embodiments of the present application can bring the following beneficial effects:
提供了一种对上行HARQ-ACK反馈的响应方式,终端设备在接收到网络设备反馈的上行HARQ-ACK反馈的情况下,基于时间差值,确定对上行HARQ-ACK反馈的响应方式,其中,时间差值是终端设备接收上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值,明确了终端设备的行为,且,由于在对上行HARQ-ACK反馈进行响应时,针对NTN***中终端设备与网络侧之间的信号传输时延大幅增加的特性,考虑了时间差值,保障了终端设备可以基于时间差值正确地对上行HARQ-ACK反馈进行响应。A response method to uplink HARQ-ACK feedback is provided. When a terminal device receives uplink HARQ-ACK feedback fed back by a network device, it determines a response method to uplink HARQ-ACK feedback based on a time difference, wherein, The time difference is the difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the last repeated transmission of the uplink transmission, which clarifies the behavior of the terminal device, and, because the uplink HARQ - When responding with ACK feedback, the time difference is taken into account in response to the signal transmission delay between the terminal device and the network side in the NTN system, which ensures that the terminal device can correctly respond to the uplink HARQ-ACK based on the time difference Feedback in response.
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.
图1是本申请一个示例性实施例提供的通信***的示意图;Fig. 1 is a schematic diagram of a communication system provided by an exemplary embodiment of the present application;
图2是本申请一个示例性实施例提供的通信***的示意图;Fig. 2 is a schematic diagram of a communication system provided by an exemplary embodiment of the present application;
图3是本申请一个示例性实施例提供的信息处理方法的流程图;Fig. 3 is a flowchart of an information processing method provided by an exemplary embodiment of the present application;
图4是本申请一个示例性实施例提供的信息处理方法的示意图;Fig. 4 is a schematic diagram of an information processing method provided by an exemplary embodiment of the present application;
图5是本申请一个示例性实施例提供的信息处理方法的示意图;Fig. 5 is a schematic diagram of an information processing method provided by an exemplary embodiment of the present application;
图6是本申请一个示例性实施例提供的信息处理方法的示意图;Fig. 6 is a schematic diagram of an information processing method provided by an exemplary embodiment of the present application;
图7是本申请一个示例性实施例提供的信息处理装置的框图;Fig. 7 is a block diagram of an information processing device provided by an exemplary embodiment of the present application;
图8是本申请一个示例性实施例提供的终端设备的结构示意图。Fig. 8 is a schematic structural diagram of a terminal device provided by an exemplary embodiment of the present application.
为使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施方式作进一步地详细描述。In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.
本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案,并不构成对本申请实施例提供的技术方案的限定,本领域 普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。The network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. The evolution of the technology and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.
目前,相关标准组织正在研究NTN技术,NTN技术一般采用卫星通信的方式向地面用户提供通信服务。相比于地面的蜂窝通信网络,卫星通信具有很多独特的优点。首先,卫星通信不受用户地域的限制,例如一般的陆地通信不能覆盖海洋、高山、沙漠等无法搭设通信设备或由于人口稀少而不做通信覆盖的区域,而对于卫星通信来说,由于一颗卫星即可以覆盖较大的地面,加之卫星可以围绕地球做轨道运动,因此理论上地球上每一个角落都可以被卫星通信覆盖。其次,卫星通信有较大的社会价值。卫星通信在边远山区、贫穷落后的国家或地区都可以以较低的成本覆盖到,从而使这些地区的人们享受到先进的语音通信和移动互联网技术,有利于缩小与发达地区的数字鸿沟,促进这些地区的发展。再次,卫星通信距离远,且通信距离增大通讯的成本没有明显增加;最后,卫星通信的稳定性高,不受自然灾害的限制。At present, relevant standard organizations are studying NTN technology, which generally uses satellite communication to provide communication services to ground users. Compared with the cellular communication network on the ground, satellite communication has many unique advantages. First of all, satellite communication is not restricted by the user's region. For example, general land communication cannot cover areas such as oceans, mountains, deserts, etc. that cannot be equipped with communication equipment or are not covered by communication due to sparse population. For satellite communication, due to a Satellites can cover a large area of the ground, and satellites can orbit the earth, so theoretically every corner of the earth can be covered by satellite communications. Secondly, satellite communication has great social value. Satellite communication can be covered at a lower cost in remote mountainous areas, poor and backward countries or regions, so that people in these regions can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital gap with developed regions and promoting development of these areas. Thirdly, the distance of satellite communication is long, and the cost of communication does not increase significantly with the increase of communication distance; finally, the stability of satellite communication is high, and it is not limited by natural disasters.
通信卫星按照轨道高度的不同分为低地球轨道(Low-Earth Orbit,LEO)卫星、中地球轨道(Medium-Earth Orbit,MEO)卫星、地球同步轨道(Geostationary Earth Orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等等。目前阶段主要研究的是LEO和GEO。Communication satellites are divided into Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (MEO) satellites, Geostationary Earth Orbit (GEO) satellites, and high elliptical orbit satellites according to their orbital heights. (High Elliptical Orbit, HEO) satellites and so on. At present, the main researches are LEO and GEO.
1、LEO1.LEO
低轨道卫星高度范围为500km~1500km,相应轨道周期约为1.5小时~2小时。用户间单跳通信的信号传播延迟一般小于20ms。最大卫星可视时间20分钟。信号传播距离短,链路损耗少,对用户终端设备的发射功率要求不高。The altitude range of low-orbit satellites is 500km to 1500km, and the corresponding orbital period is about 1.5 hours to 2 hours. The signal propagation delay of single-hop communication between users is generally less than 20ms. The maximum satellite visible time is 20 minutes. The signal propagation distance is short, the link loss is small, and the requirements for the transmission power of the user terminal equipment are not high.
2、GEO2. GEO
地球同步轨道卫星,轨道高度为35786km,围绕地球旋转周期为24小时。用户间单跳通信的信号传播延迟一般为250ms。Satellites in geosynchronous orbit have an orbital altitude of 35786km and a period of 24 hours around the earth. The signal propagation delay of single-hop communication between users is generally 250ms.
为了保证卫星的覆盖以及提升整个卫星通信***的***容量,卫星采用多波束覆盖地面,一颗卫星可以形成几十甚至数百个波束来覆盖地面;一个卫星波束可以覆盖直径几十至上百公里的地面区域。In order to ensure satellite coverage and improve the system capacity of the entire satellite communication system, satellites use multi-beams to cover the ground. A satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover tens to hundreds of kilometers in diameter. ground area.
存在至少两种NTN网络:透传载荷(transparent payload)NTN网络,如图1所示;再生载荷(regenerative payload)NTN网络,如图2所示。There are at least two kinds of NTN networks: a transparent payload NTN network, as shown in FIG. 1 ; and a regenerative payload (regenerative payload) NTN network, as shown in FIG. 2 .
NTN网络由以下网元组成:The NTN network consists of the following network elements:
·1个或者多个网络设备,用于连接卫星和地面公共网络。·One or more network devices, used to connect satellite and terrestrial public network.
·馈线链路:用于网关和卫星之间通信的链路。· Feeder link: The link used for communication between the gateway and the satellite.
·服务链路:用于终端和卫星之间通信的链路。• Service link: a link used for communication between the terminal and the satellite.
·卫星:从其提供的功能上可以分为透传载荷和再生载荷这两种。·Satellite: From the functions it provides, it can be divided into two types: transparent transmission load and regenerative load.
透传载荷:只提供无线频率滤波,频率转换和放大的功能,只提供信号的透明转发,不会改变其转发的波形信号。Transparent transmission load: only provide wireless frequency filtering, frequency conversion and amplification functions, only provide transparent forwarding of signals, and will not change the waveform signal it forwards.
再生载荷:除了提供无线频率滤波,频率转换和放大的功能,还可以提供 解调/解码,路由/转换,编码/调制的功能。其具有基站的部分或者全部功能。Regenerative load: In addition to providing radio frequency filtering, frequency conversion and amplification functions, it can also provide demodulation/decoding, routing/conversion, encoding/modulation functions. It has part or all of the functions of the base station.
·星间链路(Inter-Satellite Links,ISL):存在于再生载荷场景下。Inter-Satellite Links (ISL): Exists in regenerative load scenarios.
在介绍本申请技术方案之前,先对本申请涉及的一些背景技术知识进行介绍说明。Before introducing the technical solution of this application, some background technical knowledge involved in this application will be introduced.
1、增强的机器类通信(enhanced Machine Type Communication,eMTC)及其物理信道1. Enhanced Machine Type Communication (eMTC) and its physical channel
MTC物理下行控制信道(MTC Physical Downlink Control Channel,MPDCCH)用于发送调度信息,基于LTE R11的增强的物理下行控制信道(Enhanced Physical Downlink Control Channel,EPDCCH)设计,终端设备基于解调参考信号(Demodulation Reference Signal,DMRS)来接收控制信息,支持控制信息预编码和波束赋形等功能,一个EPDCCH传输一个或多个增强的控制信道资源(Enhanced Control Channel Element,ECCE),聚合等级为{1,2,4,8,16,32},每个ECCE由多个增强的资源粒子组(Enhanced Resource Element Group,EREG)组成。MPDCCH最大重复次数Rmax可配,取值范围{1,2,4,8,16,32,64,128,256}。MTC Physical Downlink Control Channel (MTC Physical Downlink Control Channel, MPDCCH) is used to send scheduling information, based on LTE R11 enhanced physical downlink control channel (Enhanced Physical Downlink Control Channel, EPDCCH) design, terminal equipment based on demodulation reference signal (Demodulation Reference Signal, DMRS) to receive control information, support functions such as control information precoding and beamforming, 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}, each ECCE is composed of multiple Enhanced Resource Element Groups (EREG). The maximum number of repetitions Rmax of MPDCCH can be configured, and the value range is {1, 2, 4, 8, 16, 32, 64, 128, 256}.
eMTC物理下行共享信道(Physical Downlink Shared Channel,PDSCH)与LTE PDSCH信道基本相同,但增加了重复和窄带间跳频,用于提高PDSCH信道覆盖能力和干扰平均化。eMTC终端设备可工作在ModeA和ModeB两种模式:在Mode A模式下,上行和下行混合自动重传请求(Hybrid Automatic Repeat Request,HARQ)进程数最大为8,在该模式下,PDSCH重复次数为{1,4,16,32};在Mode B模式下,上行和下行HARQ进程数最大为2,在该模式下,PDSCH重复次数为{4,16,64,128,256,512,1024,2048}。The eMTC Physical Downlink Shared Channel (PDSCH) is basically the same as the LTE PDSCH channel, but repetition and inter-narrowband frequency hopping are added to improve PDSCH channel coverage and interference averaging. eMTC terminal equipment can work in Mode A and Mode B: in Mode A, the maximum number of uplink and downlink Hybrid Automatic Repeat Request (HARQ) processes is 8, and in this mode, the number of PDSCH repetitions is {1, 4, 16, 32}; In Mode B mode, the maximum number of uplink and downlink HARQ processes is 2. In this mode, the number of PDSCH repetitions is {4, 16, 64, 128, 256, 512, 1024, 2048}.
eMTC物理上行控制信道(Physical Uplink Control Channel,PUCCH)频域资源格式与LTE相同,支持跳频和重复发送。Mode A支持PUCCH上发送HARQ-ACK/NACK、调度请求(Scheduling Request,SR)、信道状态信息(Channel State Information,CSI),即支持PUCCH format 1/1a/2/2a,支持的重复次数为{1,2,4,8};Mode B不支持CSI反馈,即仅支持PUCCH format 1/1a,支持的重复次数为{4,8,16,32}。The eMTC Physical Uplink Control Channel (PUCCH) frequency domain resource format is the same as that of LTE, and supports frequency hopping and repeated transmission. Mode A supports sending HARQ-ACK/NACK, scheduling request (Scheduling Request, SR), channel state information (Channel State Information, CSI) on PUCCH, that is, supports PUCCH format 1/1a/2/2a, and the number of repetitions supported is { 1,2,4,8}; Mode B does not support CSI feedback, that is, it only supports PUCCH format 1/1a, and the number of repetitions supported is {4,8,16,32}.
eMTC物理上行共享信道(Physical Uplink Shared Channel,PUSCH)与LTE一样,但可调度的最大资源块(Resource Block,RB)数限制为6个。支持Mode A和Mode B两种模式,Mode A重复次数可以是{8,16,32},支持最多8个进程,速率较高;Mode B覆盖距离更远,重复次数可以是{192,256,384,512,768,1024,1536,2048},最多支持上行2个HARQ进程。eMTC Physical Uplink Shared Channel (PUSCH) is the same as LTE, but the maximum number of schedulable resource blocks (Resource Block, RB) is limited to 6. Mode A and Mode B are supported. The number of repetitions of Mode A can be {8, 16, 32}, supporting up to 8 processes, and the rate is high; Mode B covers a longer distance, and the number of repetitions can be {192, 256, 384, 512, 768, 1024, 1536, 2048}, supporting a maximum of 2 uplink HARQ processes.
2、LTE非连续接收(Discontinuous Reception,DRX)过程2. LTE discontinuous reception (Discontinuous Reception, DRX) process
在LTE中,网络可以为终端设备配置DRX功能,使终端设备非连续地监听PDCCH,以达到终端设备省电的目的。每个媒体接入控制(Medium Access Control,MAC)实体有一个DRX配置,DRX的配置参数包含:In LTE, the network can configure the DRX function for the terminal equipment, so that the terminal equipment monitors the PDCCH discontinuously, so as to achieve the purpose of power saving of the terminal equipment. Each Media Access Control (MAC) entity has a DRX configuration, and the DRX configuration parameters include:
-drx cycle:DRX周期;-drx cycle: DRX cycle;
-drx-onDurationTimer:DRX持续定时器;-drx-onDurationTimer: DRX duration timer;
-drx-StartOffset:终端设备启动drx-onDurationTimer的时延;-drx-StartOffset: The delay for the terminal device to start drx-onDurationTimer;
-drx-InactivityTimer:DRX非激活定时器;-drx-InactivityTimer: DRX inactivity timer;
-drx-RetransmissionTimer:DRX下行重传定时器,除广播HARQ进程之外的每个下行HARQ进程对应一个drx-RetransmissionTimer;-drx-RetransmissionTimer: DRX downlink retransmission timer, each downlink HARQ process except the broadcast HARQ process corresponds to a drx-RetransmissionTimer;
-drx-ULRetransmissionTimer:DRX上行重传定时器,每个上行HARQ进程对应一个drx-ULRetransmissionTimer。-drx-ULRetransmissionTimer: DRX uplink retransmission timer, each uplink HARQ process corresponds to a drx-ULRetransmissionTimer.
如果终端设备配置了DRX,则终端设备需要在DRX激活期监听PDCCH。DRX激活期包括如下几种情况:If the terminal device is configured with DRX, the terminal device needs to monitor the PDCCH during the DRX activation period. The DRX activation period includes the following situations:
-drx-onDurationTimer(DRX持续定时器),drx-InactivityTimer(DRX非激活定时器),drx-RetransmissionTimer(DRX下行重传定时器),drx-RetransmissionTimerShortTTI(DRX下行短TTI重传定时器),drx-ULRetransmissionTimer(DRX上行重传定时器),drx-ULRetransmissionTimerShortTTI(DRX上行短TTI重传定时器)以及mac-ContentionResolutionTimer(竞争解决定时器)这7个定时器中的任何一个定时器正在运行。-drx-onDurationTimer (DRX duration timer), drx-InactivityTimer (DRX inactivity timer), drx-RetransmissionTimer (DRX downlink retransmission timer), drx-RetransmissionTimerShortTTI (DRX downlink short TTI retransmission timer), drx- ULRetransmissionTimer (DRX uplink retransmission timer), drx-ULRetransmissionTimerShortTTI (DRX uplink short TTI retransmission timer) and mac-ContentionResolutionTimer (contention resolution timer) Any one of the 7 timers is running.
-在PUCCH/SPUCCH(Short PUCCH)上发送了SR并处于等待(pending)状态。- SR is sent on PUCCH/SPUCCH (Short PUCCH) and is in a pending state.
-在基于竞争的随机接入过程中,终端设备在成功接收到随机接入响应后还没有接收到小区-无线网络临时标识(Cell-Radio Network Temporary Identifier,C-RNTI)加扰的PDCCH指示的一次初始传输。- In the contention-based random access process, the terminal device has not received the cell-radio network temporary identifier (Cell-Radio Network Temporary Identifier, C-RNTI) scrambled PDCCH indication after successfully receiving the random access response an initial transfer.
-对于一个pending HARQ重传可以接收上行授权(UL grant),并且该同步HARQ进程的HARQ缓冲区(buffer)里有数据。- An uplink grant (UL grant) can be received for a pending HARQ retransmission, and there is data in the HARQ buffer (buffer) of the synchronous HARQ process.
-配置了针对MPDCCH的上行HARQ-ACK反馈(mpdcch-UL-HARQ-ACK-FeedbackConfig)并且当前正在进行一个捆绑(bundle)内的重复传输。- Uplink HARQ-ACK feedback for MPDCCH (mpdcch-UL-HARQ-ACK-FeedbackConfig) is configured and repeated transmission within a bundle is currently in progress.
终端设备根据当前是处于短DRX周期(short DRX cycle)还是长DRX周期(long DRX cycle),来决定启动drx-onDurationTimer的时间,具体规定如下:The terminal device determines the time to start drx-onDurationTimer according to whether it is currently in a short DRX cycle (short DRX cycle) or a long DRX cycle (long DRX cycle). The specific regulations are as follows:
-1>如果使用的是Short DRX Cycle,并且当前子帧满足[(***帧号(System Frame Number,SFN)×10)+subframe number]modulo(drx-ShortCycle)=(drxStartOffset)modulo(drx-ShortCycle);或者-1> If Short DRX Cycle is used, and the current subframe satisfies [(System Frame Number (SFN)×10)+subframe number]modulo(drx-ShortCycle)=(drxStartOffset)modulo(drx-ShortCycle );or
-1>如果使用的是Long DRX Cycle,并且当前子帧满足[(SFN×10)+subframe number]modulo(drx-LongCycle)=drx-StartOffset;-1> If Long DRX Cycle is used, and the current subframe satisfies [(SFN×10)+subframe number]modulo(drx-LongCycle)=drx-StartOffset;
-2>如果是NB-IoT(Narrow Band Internet of Things,窄带物联网),则:-2> If it is NB-IoT (Narrow Band Internet of Things, Narrow Band Internet of Things), then:
-3>如果至少存在一个HARQ进程对应的HARQ RTT定时器(HARQ RTT Timer)或上行HARQ RTT定时器(UL HARQ RTT Timer)没有运行,则启动drx-onDurationTimer。-3> If there is at least one HARQ RTT timer (HARQ RTT Timer) corresponding to the HARQ process or the uplink HARQ RTT timer (UL HARQ RTT Timer) is not running, start drx-onDurationTimer.
-2>否则,启动drx-onDurationTimer。-2> Otherwise, start drx-onDurationTimer.
终端设备启动或重启HARQ RTT Timer的条件为:The conditions for the terminal device to start or restart the HARQ RTT Timer are:
如果终端设备接收到一个指示下行传输的PDCCH,或者如果终端在该子帧有配置的下行授权,则:If the terminal device receives a PDCCH indicating downlink transmission, or if the terminal has a configured downlink grant in this subframe, then:
a)如果该终端设备为eMTC终端设备,则:a) If the terminal device is an eMTC terminal device, then:
a1)如果物理层指示调度了多个传输块(Transport Block,TB)传输,则终端设备在接收该多个TB的最后一个TB的PDSCH的最后一次重复传输所在子帧启动该多个TB中的每个TB的PDSCH所使用的下行HARQ进程对应的HARQ RTT Timer。a1) If the physical layer indicates that multiple transmission block (Transport Block, TB) transmissions are scheduled, the terminal device starts the transmission in the multiple TBs in the subframe where the last repeated transmission of the PDSCH of the last TB of the multiple TBs is received. The HARQ RTT Timer corresponding to the downlink HARQ process used by the PDSCH of each TB.
a2)否则,终端设备在接收该PDSCH的最后一次重复传输所在子帧启动该PDSCH所使用的下行HARQ进程对应的HARQ RTT Timer。a2) Otherwise, the terminal device 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)否则,启动该PDSCH所使用的下行HARQ进程对应的HARQ RTT Timer。b) Otherwise, start the HARQ RTT Timer corresponding to the downlink HARQ process used by the PDSCH.
如果HARQ RTT Timer超时,则:如果该HARQ进程的数据解码失败,则终端设备启动该下行HARQ进程对应的DRX下行重传定时器(drx-RetransmissionTimer)。If the HARQ RTT Timer times out, then: if the data decoding of the HARQ process fails, the terminal device starts the DRX downlink retransmission timer (drx-RetransmissionTimer) corresponding to the downlink HARQ process.
终端设备启动或重启UL HARQ RTT Timer的条件为:The conditions for the terminal device to start or restart the UL HARQ RTT Timer are:
如果终端设备接收到PDCCH指示一个使用异步HARQ进程的上行传输,或者如果终端设备在该子帧对于某个异步HARQ进程有配置的上行授权,或者终端设备接收到PDCCH指示使用一个自动HARQ进程的上行传输,则:If the terminal device receives a PDCCH indicating an uplink transmission using an asynchronous HARQ process, or if the terminal device has a configured uplink grant for an asynchronous HARQ process in this subframe, or if the terminal device receives a PDCCH indicating an uplink transmission using an automatic HARQ process transfer, then:
a)如果没有配置mpdcch-UL-HARQ-ACK-FeedbackConfig,则:a) If mpdcch-UL-HARQ-ACK-FeedbackConfig is not configured, then:
a1)如果物理层指示调度了多个TB传输,则终端设备在完成该多个TB的最后一个TB的PUSCH的最后一次重复传输所在子帧启动该多个TB中的每个TB的PUSCH所使用的上行HARQ进程对应的UL HARQ RTT Timer。a1) If the physical layer indicates that multiple TB transmissions are scheduled, the terminal device starts the PUSCH of each of the multiple TBs in the subframe where the last repeated transmission of the PUSCH of the last TB of the multiple TBs is completed The UL HARQ RTT Timer corresponding to the uplink HARQ process.
a2)否则,终端设备在完成该PUSCH的最后一次重复传输所在子帧启动该PUSCH所使用的上行HARQ进程对应的UL HARQ RTT Timer。a2) Otherwise, the terminal device starts the 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)如果配置了mpdcch-UL-HARQ-ACK-FeedbackConfig,且直到PUSCH的最后一次重复传输都没有接收到UL HARQ-ACK feedback(上行HARQ-ACK反馈),则:b) If mpdcch-UL-HARQ-ACK-FeedbackConfig is configured, and UL HARQ-ACK feedback (uplink HARQ-ACK feedback) is not received until the last repeated transmission of PUSCH, then:
b1)终端设备在完成该PUSCH的最后一次重复传输所在子帧启动或重启所使用的上行HARQ进程对应的drx-ULRetransmissionTimer。b1) The terminal device starts or restarts the drx-ULRetransmissionTimer corresponding to the uplink HARQ process used in the subframe where the last repeated transmission of the PUSCH is completed.
如果某个上行HARQ进程对应的UL HARQ RTT Timer超时,则终端设备启动该上行HARQ进程对应的drx-ULRetransmissionTimer。If the UL HARQ RTT Timer corresponding to an uplink HARQ process times out, the terminal device starts the drx-ULRetransmissionTimer corresponding to the uplink HARQ process.
3、UL HARQ-ACK feedback(上行HARQ-ACK反馈)3. UL HARQ-ACK feedback (uplink HARQ-ACK feedback)
对于网络覆盖较差的eMTC终端设备,物理信道传输时需要进行较多次数的重复传输,例如最差情况下处于Mode B时PUSCH传输需要进行2048次重复传输。网络设备在接收PUSCH时是逐个重复传输进行尝试译码的,即网络设备不是接收完全部2048个重复传输后才开始进行译码,因此网络设备是有可能在接收到部分重复传输后就成功接收了PUSCH。为了降低全双工(可以同时收发)eMTC终端设备的功耗,网络设备可以尽早地反馈一个上行HARQ-ACK反馈,使得eMTC终端设备在接收后能及时停止后续的PUSCH重复传输,达到 节能的目的。For eMTC terminal devices with poor network coverage, a large number of repeated transmissions are required for physical channel transmission. For example, in the worst case, PUSCH transmission in Mode B requires 2048 repeated transmissions. When the network device receives the PUSCH, it tries to decode the repeated transmissions one by one, that is, the network device does not start to decode after receiving all 2048 repeated transmissions, so the network device may successfully receive after receiving part of the repeated transmissions. PUSCH. In order to reduce the power consumption of full-duplex (can send and receive at the same time) eMTC terminal equipment, the network equipment can feed back an uplink HARQ-ACK feedback as soon as possible, so that the eMTC terminal equipment can stop the subsequent repeated transmission of PUSCH in time after receiving it, so as to achieve the purpose of energy saving .
在LTE***中,对于上行HARQ-ACK反馈的使用,其中一个目的是为了终止PUSCH传输,另一个目的是为了终止MPDCCH监听。前者对应于网络设备利用部分重复传输(repetition)即接收成功PUSCH,后者对应于网络设备成功接收了所有HARQ进程的PUSCH。地面网络中,网络设备响应上行HARQ-ACK反馈的时间主要考虑终端设备完成PUSCH传输之后的处理时延,通常是几毫秒,且大于终端设备与网络之间的信号传输的RTT,即网络可以在该处理时间内根据上行接收情况响应终端设备后续的调度。In the LTE system, for the use of uplink HARQ-ACK feedback, one purpose is to terminate PUSCH transmission, and the other purpose is to terminate MPDCCH monitoring. The former corresponds to the network device successfully receiving the PUSCH by using partial repetition (repetition), and the latter corresponds to the network device successfully receiving the PUSCH of all HARQ processes. In the terrestrial network, the time for the network equipment to respond to the uplink HARQ-ACK feedback mainly considers the processing delay after the terminal equipment completes the PUSCH transmission, which is usually a few milliseconds, and is greater than the RTT of the signal transmission between the terminal equipment and the network. During the processing time, respond to the subsequent scheduling of the terminal device according to the uplink reception situation.
与传统地面蜂窝网络相比,NTN中终端设备与网络之间的信号传播时延大幅增加,其RTT远大于现有地面网络标准中考虑的终端处理时间,这也给上行HARQ-ACK反馈的机制提出了新的问题。例如,网络在接收部分重复传输(repetition)后即成功接收了PUSCH,然而当网络响应上行HARQ-ACK反馈后,由于RTT时间过长,终端设备收到上行HARQ-ACK反馈后可能PUSCH传输(即所有repetition)已经结束,此时,终端设备的行为需要定义。Compared with the traditional terrestrial cellular network, the signal propagation delay between the terminal equipment and the network in NTN is greatly increased, and its RTT is much larger than the terminal processing time considered in the existing terrestrial network standards, which also gives the uplink HARQ-ACK feedback mechanism New questions were raised. For example, the network successfully receives the PUSCH after receiving a partial repetition (repetition). However, after the network responds to the uplink HARQ-ACK feedback, due to the long RTT time, the terminal device may transmit the PUSCH after receiving the uplink HARQ-ACK feedback (ie All repetitions) have ended, at which point the behavior of the end device needs to be defined.
在本申请实施例中,针对NTN***中终端设备与网络之间的无线信号传输时延较大的特性,提供了一种对上行HARQ-ACK反馈的响应方式,终端设备在接收到网络设备反馈的上行HARQ-ACK反馈的情况下,基于时间差值,确定对上行HARQ-ACK反馈的响应方式,其中,时间差值是终端设备接收上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值,明确了终端设备的行为,且,由于在对上行HARQ-ACK反馈进行响应时,考虑了时间差值,保障了终端设备可以基于时间差值正确地对上行HARQ-ACK反馈进行响应。In the embodiment of this application, aiming at the characteristics of relatively large wireless signal transmission delay between the terminal device and the network in the NTN system, a response method for uplink HARQ-ACK feedback is provided. When the terminal device receives the feedback from the network device In the case of uplink HARQ-ACK feedback, the response method to the uplink HARQ-ACK feedback is determined based on the time difference, where the time difference is the first time point when the terminal device receives the uplink HARQ-ACK feedback and the latest uplink transmission The difference between the second time points of a repeated transmission clarifies the behavior of the terminal device, and since the time difference is considered when responding to the uplink HARQ-ACK feedback, it is guaranteed that the terminal device can Correctly respond to the uplink HARQ-ACK feedback.
下面,通过几个实施例对本申请技术方案进行介绍说明。In the following, the technical solution of the present application will be described through several embodiments.
请参考图3,其示出了本申请一个实施例提供的信息处理方法的流程图。该方法可应用于图1或图2所示的通信***中的终端设备中。该方法可以包括如下步骤:Please refer to FIG. 3 , which shows a flowchart of an information processing method provided by an embodiment of the present application. The method can be applied to a terminal device in the communication system shown in FIG. 1 or FIG. 2 . The method may include the steps of:
步骤302,基于时间差值,对上行HARQ-ACK反馈进行响应,时间差值是终端设备接收上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值。Step 302: Respond to the uplink HARQ-ACK feedback based on the time difference, where the time difference is the difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission difference.
在本申请中,上行传输支持重复传输(repetition),即,针对同一上行传输,对该上行传输进行重复传输。终端设备基于接收网络设备发送的上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的时间差值,确定对上行HARQ-ACK反馈的响应方式,其中,第一时间点是在时域位置上不早于第二时间点的一个时间点。示例性的,第一时间点是在时域位置上不早于第二时间点的一个时间点可以理解为第一时间点在时域位置上在第二时间点之后;也可理解为第一时间点在时域位置上与第二时间点相同。示例性的,第二时间点可以理解为是上行传输的最近一次重复传输的开始时刻, 也可以理解为是上行传输的最近一次重复传输的中间时刻,也可以理解为是上行传输的最近一次重复传输的结束时刻。In this application, the uplink transmission supports repeated transmission (repetition), that is, for the same uplink transmission, the uplink transmission is repeatedly transmitted. The terminal device determines a response mode to the uplink HARQ-ACK feedback based on the time difference between the first time point of receiving the uplink HARQ-ACK feedback sent by the network device and the second time point of the latest repeated transmission of the uplink transmission, wherein , the first time point is a time point not earlier than the second time point in the time domain position. Exemplarily, the first time point is a time point not earlier than the second time point in the time domain position. It can be understood that the first time point is after the second time point in the time domain position; it can also be understood as the first time point The time point is at the same temporal position as the second time point. Exemplarily, the second time point can be understood as the start moment of the latest repeated transmission of the uplink transmission, or it can be understood as the middle moment of the latest repeated transmission of the uplink transmission, or it can be understood as the latest repeated transmission of the uplink transmission The end moment of the transfer.
相关技术中,上行HARQ-ACK反馈主要针对以下使用场景:第一,针对网络使用部分重复传输成功接收上行传输后发送上行HARQ-ACK反馈的场景。第二,针对网络成功接收所有上行HARQ进程的上行传输后发送上行HARQ-ACK反馈的场景。In related technologies, the uplink HARQ-ACK feedback is mainly aimed at the following usage scenarios: first, it is aimed at the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving the uplink transmission using partial repeated transmission. Second, for the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmissions of all uplink HARQ processes.
可选的,时间差值用于辅助终端设备确定上行HARQ-ACK反馈的使用场景,进一步的,终端设备基于确定的上行HARQ-ACK反馈的使用场景,对上行HARQ-ACK反馈进行响应。Optionally, the time difference is used to assist the terminal device in determining a usage scenario of the uplink HARQ-ACK feedback. Further, the terminal device responds to the uplink HARQ-ACK feedback based on the determined usage scenario of the uplink HARQ-ACK feedback.
可选的,上行传输包括:PUSCH。Optionally, the uplink transmission includes: PUSCH.
可选的,重复传输对应有重复次数。示例性的,针对Mode A类型的上行传输,上行传输支持的重复次数为{8,16,32}。示例性的,针对ModeB类型的上行传输,上行传输支持的重复次数为{192,256,384,512,768,1024,1536,2048}。Optionally, the repeated transmission corresponds to the number of repetitions. Exemplarily, for Mode A uplink transmission, the number of repetitions supported by the uplink transmission is {8, 16, 32}. Exemplarily, for the uplink transmission of the Mode B type, the number of repetitions supported by the uplink transmission is {192, 256, 384, 512, 768, 1024, 1536, 2048}.
可选的,最近一次重复传输指的是在上行传输已完成的重复传输中,与第一时间点在时域上最靠近的一次重复传输。Optionally, the latest repeated transmission refers to the repeated transmission that is closest to the first time point in the time domain among the repeated transmissions that have completed the uplink transmission.
示例性的,PUSCH的重复次数共为8,终端设备在已发送完第3次重复传输,还没发送第4次重复传输的时候接收到了上行HARQ-ACK反馈,则最近一次重复传输指的是第3次重复传输,相应的,时间差值指的是终端设备接收上行HARQ-ACK反馈的第一时间点与终端设备发送第3次重复传输的第二时间点之间的差值。Exemplarily, the total number of repetitions of the PUSCH is 8, and the terminal device has received the uplink HARQ-ACK feedback before sending the 4th repeated transmission after sending the 3rd repeated transmission, then the latest repeated transmission refers to For the third repeated transmission, correspondingly, the 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 third repeated transmission.
示例性的,PUSCH的重复次数共为8,终端设备在已发送完第8次重复传输的时候接收到了上行HARQ-ACK反馈,则最近一次重复传输指的是第8次重复传输,相应的,时间差值指的是终端设备接收上行HARQ-ACK反馈的第一时间点与终端设备发送第8次重复传输的第二时间点之间的差值。Exemplarily, the total number of repetitions of PUSCH is 8, and the terminal device receives the uplink HARQ-ACK feedback after sending the eighth repeated transmission, then the latest repeated transmission refers to the eighth repeated transmission, correspondingly, The 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 eighth repeated transmission.
可选的,终端设备包括如下类型的终端设备中的至少一种:eMTC终端设备;低能力终端设备。Optionally, the terminal equipment includes at least one of the following types of terminal equipment: eMTC terminal equipment; low-capability terminal equipment.
可选的,终端设备发送上行传输所使用的资源包括:终端设备接收到的物理下行控制信道PDCCH指示的第一异步HARQ进程的上行传输所对应的资源;或,终端设备对于第二异步HARQ进程有配置的上行授权所对应的资源;或,终端设备接收到的PDCCH指示的自动HARQ进程的上行传输所对应的资源。Optionally, the resource used by the terminal device to send the uplink transmission includes: the resource corresponding to the uplink transmission of the first asynchronous HARQ process indicated by the physical downlink control channel PDCCH received by the terminal device; or, the terminal device for the second asynchronous HARQ process There are resources corresponding to the configured uplink grant; or, resources corresponding to the uplink transmission of the automatic HARQ process indicated by the PDCCH received by the terminal device.
综上所述,本实施例提供的方法,提供了一种对上行HARQ-ACK反馈的响应方式,终端设备在接收到网络设备反馈的上行HARQ-ACK反馈的情况下,基于时间差值,确定对上行HARQ-ACK反馈的响应方式,其中,时间差值是终端设备接收上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值,明确了终端设备的行为,且,由于在对上行HARQ-ACK反馈进行响应时,针对NTN***中终端设备与网络侧之间的信号传输时延大幅增加的特性,考虑了时间差值,保障了终端设备可以基于时间差值正确地对上行HARQ-ACK反馈进行响应。To sum up, the method provided in this embodiment provides a response method to the uplink HARQ-ACK feedback. When the terminal device receives the uplink HARQ-ACK feedback fed back by the network device, based on the time difference, determine Response to uplink HARQ-ACK feedback, where the time difference is the difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission. In response to the uplink HARQ-ACK feedback, the signal transmission delay between the terminal device and the network side in the NTN system is greatly increased, and the time difference is considered to ensure that the terminal device The uplink HARQ-ACK feedback can be correctly responded based on the time difference.
在示意性实施例中,终端设备基于时间差值与RTT之间的数值大小,对上行HARQ-ACK反馈进行响应。In an exemplary embodiment, the terminal device responds to the uplink HARQ-ACK feedback based on the value between the time difference and the RTT.
可选的,终端基于时间差值与RTT之间的数值大小,确定上行HARQ-ACK反馈的使用场景,再基于上行HARQ-ACK反馈的使用场景,对上行HARQ-ACK反馈进行响应。Optionally, the terminal determines the usage scenario of the uplink HARQ-ACK feedback based on the value between the time difference and the RTT, and then responds to the uplink HARQ-ACK feedback based on the usage scenario of the uplink HARQ-ACK feedback.
下面,以上行HARQ-ACK反馈主要针对以下使用场景:第一,针对网络使用部分重复传输成功接收上行传输后发送上行HARQ-ACK反馈的场景。第二,针对网络成功接收所有上行HARQ进程的上行传输后发送上行HARQ-ACK反馈的场景,进行示例性的说明。In the following, the uplink HARQ-ACK feedback is mainly aimed at the following usage scenarios: first, it is aimed at the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving the uplink transmission using partial repeated transmission. Second, an exemplary description is given for a scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmissions of all uplink HARQ processes.
(1)时间差值小于RTT,针对网络使用部分重复传输成功接收上行传输后发送上行HARQ-ACK反馈的场景。(1) The time difference is less than the RTT, for the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmission using partial repeated transmission.
终端设备接收到上行HARQ-ACK反馈的时刻距离上行传输的最近一次重复传输的时刻小于RTT,代表网络设备使用部分重复传输(repetition)即成功解码上行传输,此时,网络设备的行为是期待通过上行HARQ-ACK反馈来终止该上行传输的后续重复传输。The time at which the terminal device receives the uplink HARQ-ACK feedback is less than the RTT from the time of the latest repeated transmission of the uplink transmission, which means that the network device successfully decodes the uplink transmission using partial repetition. At this time, the behavior of the network device is to expect to pass The uplink HARQ-ACK feedback is used to terminate the subsequent repeated transmission of the uplink transmission.
可选的,步骤301替换实现为步骤301a:当时间差值小于RTT,且上行传输的重复传输还没有结束的情况下,则停止上行传输的剩余的重复传输。Optionally, step 301 is replaced by step 301a: when the time difference is less than the RTT and the repeated transmission of the uplink transmission has not ended, stop the remaining repeated transmission of the uplink transmission.
可选的,步骤301替换实现为步骤301b:当时间差值小于RTT,且上行传输的重复传输已经结束的情况下,则停止上行传输的HARQ进程对应的DRX上行重传定时器。Optionally, step 301 is replaced by step 301b: when the time difference is less than RTT and the repeated transmission of uplink transmission has ended, stop the DRX uplink retransmission timer corresponding to the HARQ process of uplink transmission.
可选的,上行传输的重复传输对应有重复次数,上行传输的重复传输还没有结束指的是:终端设备已发送完成的上行传输的重复传输的次数小于重复次数;上行传输的重复传输已经结束指的是:终端设备已发送完成的上行传输的重复传输的次数等于重复次数;上行传输的剩余的重复传输指的是:在上行传输的重复次数个重复传输中,减去终端设备已发送完成的上行传输的重复传输,剩余的重复传输。Optionally, the repeated transmission of the uplink transmission corresponds to the number of repetitions, and the repeated transmission of the uplink transmission has not ended means: the number of repeated transmissions of the uplink transmission that the terminal device has sent and completed is less than the number of repetitions; the repeated transmission of the uplink transmission has ended It refers to: the number of repeated transmissions of the uplink transmission that the terminal device has sent is equal to the number of repetitions; the remaining repeated transmission of the uplink transmission refers to: in the number of repeated transmissions of the uplink transmission, minus the number of repeated transmissions that the terminal device has sent Repeat the transmission of the uplink transmission, and repeat the transmission of the rest.
示例性的,上行传输的重复传输的重复次数共为8,当时间差值小于RTT,且终端设备已发送完第1次重复传输至第6次重复传输的情况下,则终端设备停止剩余的第7次重复传输和第8次重复传输。Exemplarily, the number of repeated transmissions of the uplink transmission is 8 in total. When the time difference is less than the RTT and the terminal device has sent the first repeated transmission to the sixth repeated transmission, the terminal device stops the remaining 7th retransmission and 8th retransmission.
示例性的,上行传输的重复传输的重复次数共为8,当时间差值小于RTT,且终端设备已发送完第8次重复传输的情况下,则终端设备停止上行传输的HARQ进程对应的DRX上行重传定时器。Exemplarily, the number of repeated transmissions of the uplink transmission is 8 in total. When the time difference is less than RTT and the terminal device has sent the 8th repeated transmission, the terminal device stops the DRX corresponding to the HARQ process of the uplink transmission. Uplink retransmission timer.
也即,在时间差值小于RTT的情况下,代表上行HARQ-ACK反馈的使用场景是网络使用部分重复传输成功接收上行传输后发送上行HARQ-ACK反馈的场景,此时,网络设备的行为是期待通过上行HARQ-ACK反馈来终止该上行传输的后续重复传输,则在上行传输的重复传输还没有结束的情况下,停止上行传输的剩余的重复传输,在上行传输的重复传输已经结束且上行传输的 HARQ进程对应的DRX上行重传定时器正在运行的情况下,停止正在运行的HARQ进程对应的DRX上行重传定时器,以达到终端设备节能的目的。That is to say, when the time difference is less than RTT, the usage scenario representing uplink HARQ-ACK feedback is the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmission using partial repeated transmission. At this time, the behavior of the network device is It is expected to terminate the subsequent repeated transmission of the uplink transmission through the uplink HARQ-ACK feedback. If the repeated transmission of the uplink transmission has not ended, stop the remaining repeated transmission of the uplink transmission. After the repeated transmission of the uplink transmission has ended and the uplink When the DRX uplink retransmission timer corresponding to the transmitted HARQ process is running, stop the DRX uplink retransmission timer corresponding to the running HARQ process, so as to achieve the purpose of energy saving of the terminal device.
可选的,在第三时间点后,终端设备启动上行传输的HARQ进程对应的DRX上行重传定时器,第三时间点是终端设备发送完上行传输的最后一次重复传输的时间点;或,在第四时间点后,终端设备启动上行传输的HARQ进程对应的DRX上行重传定时器,第四时间点是在第三时间点之后的一个时间点。Optionally, after the third time point, the terminal device starts the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, and the third time point is the time point when the terminal device sends the last repeated transmission of the uplink transmission; or, After the fourth time point, the terminal device starts the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, and the fourth time point is a time point after the third time point.
可选的,RTT是对以下参数中的一种进行取整得到的值:Optionally, RTT is a value obtained by rounding one of the following parameters:
终端设备与接入网设备之间的RTT值;The RTT value between the terminal device and the access network device;
终端设备的定时提前(Timing Advance,TA)值;The timing advance (Timing Advance, TA) value of the terminal equipment;
终端设备与卫星之间的RTT值;The RTT value between the terminal device and the satellite;
终端设备与接入网设备之间的RTT值与网络处理时间之和;The sum of the RTT value between the terminal device and the access network device and the network processing time;
终端设备的TA值与网络处理时间之和;The sum of the TA value of the terminal device and the network processing time;
终端设备与卫星之间的RTT与网络处理时间之和。The sum of RTT and network processing time between the end device and the satellite.
可选的,网络处理时间包括接入网设备处理时间和/或卫星处理时间。Optionally, the network processing time includes access network device processing time and/or satellite processing time.
可选的,取整为向上取整或向下取整。Optionally, rounding is round up or round down.
可选的,取整以毫秒为单位。Optional, rounded in milliseconds.
可选的,网络处理时间携带在如下信令中的至少一种:***消息;无线资源控制(Radio Resource Control,RRC)专用信令;MAC控制信元(Control Element,CE);下行控制信息(Downlink Control Information,DCI)。Optionally, the network processing time is carried in at least one of the following signaling: system message; radio resource control (Radio Resource Control, RRC) dedicated signaling; MAC control letter element (Control Element, CE); downlink control information ( Downlink Control Information, DCI).
示例性的,结合参考图4对针对网络使用部分重复传输成功接收上行传输后发送上行HARQ-ACK反馈的场景进行示例性的说明。Exemplarily, with reference to FIG. 4 , an exemplary description is given for the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmission using partially repeated transmission.
终端设备在接收到上行授权(UL grant)401的情况下,基于上行授权401的调度,发送PUSCH 402,PUSCH 402对应的HARQ进程标记为HARQ ID 0,并在PUSCH 402的最后一次重复传输完成后的一段时间后,启动HARQ ID 0对应的DRX上行重传定时器,随后,终端设备在接收到上行授权403的情况下,基于上行授权403的调度,发送PUSCH 404,PUSCH 404对应的HARQ进程标记为HARQ ID 1,并在PUSCH 404的最后一次重复传输完成后的一段时间后,启动HARQ ID 1对应的DRX上行重传定时器。When receiving the uplink grant (UL grant) 401, the terminal device sends PUSCH 402 based on the scheduling of the uplink grant 401. The HARQ process corresponding to PUSCH 402 is marked as HARQ ID 0, and after the last repeated transmission of PUSCH 402 is completed After a period of time, the DRX uplink retransmission timer corresponding to HARQ ID 0 is started. Then, when the terminal device receives the uplink grant 403, based on the scheduling of the uplink grant 403, it sends PUSCH 404, and the HARQ process mark corresponding to PUSCH 404 It is HARQ ID 1, and after a period of time after the last repeated transmission of PUSCH 404 is completed, start the DRX uplink retransmission timer corresponding to HARQ ID 1.
终端设备在时间点t1完成PUSCH 404的最后一次重复传输,并在时间点t2接收到上行HARQ-ACK反馈405,时间点t1至时间点t2之间的时间长度为时间差值,由图4可知,时间差值小于RTT,且终端设备的PUSCH 404已完成全部重复传输,则终端设备无需为该PUSCH 404对应的HARQ进程继续监听重传调度,因此需要停止正在运行的HARQ ID 1对应的DRX上行重传定时器,以达到终端设备节能的目的。The terminal device completes the last repeated transmission of PUSCH 404 at time point t1, and receives uplink HARQ-ACK feedback 405 at time point t2, and the time length between time point t1 and time point t2 is the time difference, as can be seen from Figure 4 , the time difference is less than RTT, and the PUSCH 404 of the terminal device has completed all repeated transmissions, the terminal device does not need to continue to monitor the retransmission scheduling for the HARQ process corresponding to the PUSCH 404, so it needs to stop the DRX uplink corresponding to the running HARQ ID 1 Retransmission timer to achieve the purpose of energy saving of terminal equipment.
示例性的,结合参考图5对针对网络使用部分重复传输成功接收上行传输后发送上行HARQ-ACK反馈的场景进行示例性的说明。Exemplarily, with reference to FIG. 5 , an exemplary description is given for the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmission using partially repeated transmission.
终端设备在接收到上行授权501的情况下,基于上行授权501的调度,发送PUSCH 502,PUSCH 502对应的HARQ进程标记为HARQ ID 0,并在PUSCH 502的最后一次重复传输完成后的一段时间后,启动HARQ ID 0对应的DRX上 行重传定时器,随后,终端设备在接收到上行授权503的情况下,基于上行授权503的调度,发送PUSCH 504,PUSCH 504对应的HARQ进程标记为HARQ ID 1。When receiving the uplink authorization 501, the terminal device sends PUSCH 502 based on the scheduling of the uplink authorization 501, and the HARQ process corresponding to PUSCH 502 is marked as HARQ ID 0, and after a period of time after the last repeated transmission of PUSCH 502 is completed , start the DRX uplink retransmission timer corresponding to HARQ ID 0, and then, when the terminal device receives the uplink grant 503, based on the scheduling of the uplink grant 503, send PUSCH 504, and the HARQ process corresponding to PUSCH 504 is marked as HARQ ID 1 .
终端设备在时间点t3完成PUSCH 504的一次重复传输,并在随后的时间点t4接收到上行HARQ-ACK反馈505,时间点t3至时间点t4之间的时间长度为时间差值,由图5可知,时间差值小于RTT,且终端设备的PUSCH 504未完成全部重复传输,则终端设备无需传输PUSCH 504的剩余的重复传输,以达到终端设备节能的目的。The terminal device completes a repeated transmission of PUSCH 504 at time point t3, and receives uplink HARQ-ACK feedback 505 at subsequent time point t4, and the time length between time point t3 and time point t4 is the time difference, as shown in Figure 5 It can be seen that if the time difference is less than the RTT, and the PUSCH 504 of the terminal device has not completed all repeated transmissions, the terminal device does not need to transmit the remaining repeated transmissions of the PUSCH 504, so as to achieve the purpose of energy saving of the terminal device.
综上所述,本实施例提供的方法,在时间差值小于RTT的情况下,代表上行HARQ-ACK反馈的使用场景是网络使用部分重复传输成功接收上行传输后发送上行HARQ-ACK反馈的场景,此时,网络设备的行为是期待通过上行HARQ-ACK反馈来终止该上行传输的后续重复传输,则在上行传输的重复传输还没有结束的情况下,停止上行传输的剩余的重复传输,在上行传输的重复传输已经结束且上行传输的HARQ进程对应的DRX上行重传定时器正在运行的情况下,停止正在运行的HARQ进程对应的DRX上行重传定时器,以达到终端设备节能的目的。To sum up, the method provided in this embodiment, when the time difference is less than RTT, represents the use scenario of uplink HARQ-ACK feedback is the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmission using partial repeated transmission , at this time, the behavior of the network device is to expect to terminate the subsequent repeated transmission of the uplink transmission through the uplink HARQ-ACK feedback, then stop the remaining repeated transmission of the uplink transmission when the repeated transmission of the uplink transmission has not ended. When the repeated transmission of the uplink transmission has ended and the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission is running, stop the DRX uplink retransmission timer corresponding to the running HARQ process, so as to achieve the purpose of energy saving of the terminal device.
(2)时间差值大于RTT,针对网络成功接收所有上行HARQ进程的上行传输后发送上行HARQ-ACK反馈的场景。(2) The time difference is greater than the RTT, for the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmissions of all uplink HARQ processes.
终端设备接收到上行HARQ-ACK反馈的时刻距离上行传输的最近一次重传传输的时刻大于RTT,代表网络设备接收完包括该上行传输在内的所有上行HARQ进程的上行传输的重复传输,并成功解码所有上行传输,此时,网络设备的行为是期待通过上行HARQ-ACK反馈来终止所有HARQ进程的重传调度监听。The moment when the terminal device receives the uplink HARQ-ACK feedback is greater than the RTT from the last retransmission of the uplink transmission, which means that the network device has received the retransmission of the uplink transmission of all uplink HARQ processes including the uplink transmission, and succeeded. Decode all uplink transmissions. At this time, the behavior of the network device is to terminate the retransmission scheduling monitoring of all HARQ processes through uplink HARQ-ACK feedback.
可选的,步骤301替换实现为步骤301c:当时间差值大于RTT的情况下,则停止终端设备的所有HARQ进程对应的DRX上行重传定时器。Optionally, step 301 is replaced with step 301c: when the time difference is greater than the RTT, stop the DRX uplink retransmission timers corresponding to all HARQ processes of the terminal device.
也即,在时间差值大于RTT的情况下,代表上行HARQ-ACK反馈的使用场景是网络成功接收所有上行HARQ进程的上行传输后发送上行HARQ-ACK反馈的场景,此时,网络设备的行为是期待通过上行HARQ-ACK反馈来终止所有HARQ进程的重传调度监听,则终端设备停止所有HARQ进程对应的DRX上行重传定时器,以达到终端设备节能的目的。That is to say, when the time difference is greater than RTT, the usage scenario of uplink HARQ-ACK feedback is the scenario where the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmissions of all uplink HARQ processes. At this time, the behavior of the network device It is expected to terminate the retransmission scheduling monitoring of all HARQ processes through uplink HARQ-ACK feedback, then the terminal device stops the DRX uplink retransmission timers corresponding to all HARQ processes, so as to achieve the purpose of energy saving of the terminal device.
可选的,在第三时间点后,终端设备启动上行传输的HARQ进程对应的DRX上行重传定时器,第三时间点是终端设备发送完上行传输的最后一次重复传输的时间点;或,在第四时间点后,终端设备启动上行传输的HARQ进程对应的DRX上行重传定时器,第四时间点是在第三时间点之后的一个时间点。Optionally, after the third time point, the terminal device starts the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, and the third time point is the time point when the terminal device sends the last repeated transmission of the uplink transmission; or, After the fourth time point, the terminal device starts the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, and the fourth time point is a time point after the third time point.
可选的,RTT是对以下参数中的一种进行取整得到的值:Optionally, RTT is a value obtained by rounding one of the following parameters:
终端设备与接入网设备之间的RTT值;The RTT value between the terminal device and the access network device;
终端设备的TA值;TA value of the terminal device;
终端设备与卫星之间的RTT值;The RTT value between the terminal device and the satellite;
终端设备与接入网设备之间的RTT值与网络处理时间之和;The sum of the RTT value between the terminal device and the access network device and the network processing time;
终端设备的TA值与网络处理时间之和;The sum of the TA value of the terminal device and the network processing time;
终端设备与卫星之间的RTT与网络处理时间之和。The sum of RTT and network processing time between the end device and the satellite.
可选的,网络处理时间包括接入网设备处理时间和/或卫星处理时间。Optionally, the network processing time includes access network device processing time and/or satellite processing time.
可选的,取整为向上取整或向下取整。Optionally, rounding is round up or round down.
可选的,取整以毫秒为单位。Optional, rounded in milliseconds.
可选的,网络处理时间携带在如下信令中的至少一种:***消息;RRC专用信令;MAC CE;DCI。Optionally, the network processing time is carried in at least one of the following signaling: system message; RRC dedicated signaling; MAC CE; DCI.
示例性的,结合参考图6对针对网络成功接收所有上行HARQ进程的上行传输后发送上行HARQ-ACK反馈的场景进行示例性的说明。Exemplarily, with reference to FIG. 6 , the scenario of sending uplink HARQ-ACK feedback after the network successfully receives uplink transmissions of all uplink HARQ processes is exemplarily described.
终端设备在接收到上行授权601的情况下,基于上行授权601的调度,发送PUSCH 602,PUSCH 602对应的HARQ进程标记为HARQ ID 0,并在PUSCH 602的最后一次重复传输完成后的一段时间后,启动HARQ ID 0对应的DRX上行重传定时器,随后,终端设备在接收到上行授权603的情况下,基于上行授权603的调度,发送PUSCH 604,PUSCH 604对应的HARQ进程标记为HARQ ID 1,并在PUSCH 604的最后一次重复传输完成后的一段时间后,启动HARQ ID 1对应的DRX上行重传定时器。When receiving the uplink grant 601, the terminal device sends PUSCH 602 based on the scheduling of the uplink grant 601. The HARQ process corresponding to PUSCH 602 is marked as HARQ ID 0, and after a period of time after the last repeated transmission of PUSCH 602 is completed , start the DRX uplink retransmission timer corresponding to HARQ ID 0, and then, when the terminal device receives the uplink grant 603, based on the scheduling of the uplink grant 603, send PUSCH 604, and the HARQ process corresponding to PUSCH 604 is marked as HARQ ID 1 , and after a period of time after the last repeated transmission of PUSCH 604 is completed, start the DRX uplink retransmission timer corresponding to HARQ ID 1.
终端设备在时间点t5完成PUSCH 604的最后一次重复传输,并在时间点t6接收到上行HARQ-ACK反馈605,时间点t5至时间点t6之间的时间长度为时间差值,由图6可知,时间差值大于RTT,代表网络设备接收完所有上行HARQ进程的PUSCH的所有重复传输并成功解码所有PUSCH,此时网络设备的行为是期待通过上行HARQ-ACK反馈来终止所有HARQ进程的重传调度监听。因此,终端设备需要停止所有上行HARQ进程正在运行的DRX上行重传定时器,包括:HARQ ID 0对应的DRX上行重传定时器和HARQ ID 1对应的DRX上行重传定时器,以达到终端设备节能的目的。The terminal device completes the last repeated transmission of PUSCH 604 at time point t5, and receives uplink HARQ-ACK feedback 605 at time point t6, and the time length between time point t5 and time point t6 is the time difference, as shown in Figure 6 , the time difference is greater than RTT, which means that the network device has received all the repeated transmissions of the PUSCH of all uplink HARQ processes and successfully decoded all the PUSCHs. At this time, the behavior of the network device is to expect to terminate the retransmission of all HARQ processes through the uplink HARQ-ACK feedback Schedule monitoring. Therefore, the terminal device needs to stop all DRX uplink retransmission timers that are running in the uplink HARQ process, including: the DRX uplink retransmission timer corresponding to HARQ ID 0 and the DRX uplink retransmission timer corresponding to HARQ ID 1, so as to reach the terminal device The purpose of energy saving.
综上所述,本实施例提供的方法,在时间差值大于RTT的情况下,代表上行HARQ-ACK反馈的使用场景是网络成功接收所有上行HARQ进程的上行传输后发送上行HARQ-ACK反馈的场景,此时,网络设备的行为是期待通过上行HARQ-ACK反馈来终止所有HARQ进程的重传调度监听,则终端设备停止所有HARQ进程对应的DRX上行重传定时器,以达到终端设备节能的目的。To sum up, the method provided in this embodiment, when the time difference is greater than RTT, represents the usage scenario of uplink HARQ-ACK feedback is that the network sends uplink HARQ-ACK feedback after successfully receiving uplink transmissions of all uplink HARQ processes Scenario, at this time, the behavior of the network device is to expect to terminate the retransmission scheduling monitoring of all HARQ processes through the uplink HARQ-ACK feedback, then the terminal device stops the DRX uplink retransmission timer corresponding to all HARQ processes, so as to achieve energy saving of the terminal device Purpose.
可以理解的是,上述方法实施例可以单独实施,也可以组合实施,本申请对此不加以限制。It can be understood that the above method embodiments may be implemented individually or in combination, which is not limited in the present application.
下述为本申请装置实施例,可以用于执行本申请方法实施例。对于本申请装置实施例中未披露的细节,请参照本申请方法实施例。The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.
请参考图7,其示出了本申请一个实施例提供的信息处理装置的框图。该装置具有实现上述终端设备侧的方法示例的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的终端设备,也 可以设置在终端设备中。如图7所示,该装置700可以包括:响应模块702;Please refer to FIG. 7 , which shows a block diagram of an information processing device provided by an embodiment of the present application. The apparatus has the function of implementing the above example method on the terminal device side, and the function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The device can be the terminal equipment introduced above, or it can be set in the terminal equipment. As shown in FIG. 7, the device 700 may include: a response module 702;
所述响应模块702,用于基于时间差值,对上行HARQ-ACK反馈进行响应;The response module 702 is configured to respond to the uplink HARQ-ACK feedback based on the time difference;
其中,所述时间差值是所述终端设备接收所述上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值。Wherein, the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
在一个可选的实施例中,所述响应模块702,用于基于所述时间差值与RTT之间的数值大小,对所述上行HARQ ACK反馈进行响应。In an optional embodiment, the responding module 702 is configured to respond to the uplink HARQ ACK feedback based on the value between the time difference and the RTT.
在一个可选的实施例中,所述响应模块702,用于当所述时间差值小于所述RTT,且所述上行传输的重复传输还没有结束的情况下,则停止所述上行传输的剩余的重复传输。In an optional embodiment, the response module 702 is configured to stop the uplink transmission when the time difference is less than the RTT and the repeated transmission of the uplink transmission has not ended The rest are repeated for transmission.
在一个可选的实施例中,所述响应模块702,用于当所述时间差值小于所述RTT,且所述上行传输的重复传输已经结束的情况下,则停止所述上行传输的HARQ进程对应的非连续接收DRX上行重传定时器。In an optional embodiment, the response module 702 is configured to stop the HARQ transmission of the uplink transmission when the time difference is less than the RTT and the repeated transmission of the uplink transmission has ended. The discontinuous reception DRX uplink retransmission timer corresponding to the process.
在一个可选的实施例中,所述响应模块702,用于当所述时间差值大于所述RTT的情况下,则停止所述终端设备的所有HARQ进程对应的DRX上行重传定时器。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.
在一个可选的实施例中,所述RTT是对以下参数中的一种进行取整得到的值:In an optional embodiment, the RTT is a value obtained by rounding one of the following parameters:
所述终端设备与接入网设备之间的RTT值;The RTT value between the terminal device and the access network device;
所述终端设备的TA值;The TA value of the terminal device;
所述终端设备与卫星之间的RTT值;The RTT value between the terminal device and the satellite;
所述终端设备与接入网设备之间的RTT值与网络处理时间之和;The sum of the RTT value between the terminal device and the access network device and the network processing time;
所述终端设备的TA值与网络处理时间之和;The sum of the TA value of the terminal device and the network processing time;
所述终端设备与卫星之间的RTT与网络处理时间之和。The sum of RTT and network processing time between the terminal device and the satellite.
在一个可选的实施例中,所述网络处理时间包括接入网设备处理时间和/或卫星处理时间。In an optional embodiment, the network processing time includes access network device processing time and/or satellite processing time.
在一个可选的实施例中,所述取整为向上取整或向下取整。In an optional embodiment, the rounding is rounding up or rounding down.
在一个可选的实施例中,所述取整以毫秒为单位。In an optional embodiment, the rounding is in milliseconds.
在一个可选的实施例中,所述网络处理时间携带在如下信令中的至少一种:***消息;RRC专用信令;MAC CE;DCI。In an optional embodiment, the network processing time is carried in at least one of the following signaling: system message; RRC dedicated signaling; MAC CE; DCI.
在一个可选的实施例中,所述装置还包括:定时器启动模块;In an optional embodiment, the device further includes: a timer starting module;
所述定时器启动模块,用于在第三时间点后,启动所述上行传输的HARQ进程对应的DRX上行重传定时器,所述第三时间点是所述终端设备发送完所述上行传输的最后一次重复传输的时间点;The timer starting module is configured to start a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a third time point, where the third time point is when the terminal device finishes sending the uplink transmission The time point of the last repeated transmission of ;
或,or,
所述定时器启动模块,用于在第四时间点后,启动所述上行传输的HARQ进程对应的DRX上行重传定时器,所述第四时间点是在所述第三时间点之后的一个时间点。The timer starting module is configured to start the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a fourth time point, where the fourth time point is one after the third time point point in time.
在一个可选的实施例中,所述上行传输包括PUSCH。In an optional embodiment, the uplink transmission includes PUSCH.
在一个可选的实施例中,所述最近一次重复传输指的是在所述上行传输已 完成的重复传输中,与所述第一时间点在时域上最靠近的一次重复传输。In an optional embodiment, the latest repeated transmission refers to the repeated transmission that is closest to the first time point in the time domain among the repeated transmissions that have been completed in the uplink transmission.
在一个可选的实施例中,所述终端设备包括如下类型的终端设备中的至少一种:In an optional embodiment, the terminal equipment includes at least one of the following types of terminal equipment:
eMTC终端设备;低能力终端设备。eMTC Terminal Device; Low Capability Terminal Device.
需要说明的一点是,上述实施例提供的装置在实现其功能时,仅以上述各个功能模块的划分进行举例说明,实际应用中,可以根据实际需要而将上述功能分配由不同的功能模块完成,即将设备的内容结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。It should be noted that when the device provided by the above embodiment realizes its functions, it only uses the division of the above-mentioned functional modules as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述,此处将不做详细阐述说明。Regarding the apparatus in the foregoing embodiments, the specific manner in which each module executes operations has been described in detail in the embodiments related to the method, and will not be described in detail here.
请参考图8,其示出了本申请一个实施例提供的终端设备的结构示意图。该终端设备可以包括:处理器801、接收器802、发射器803、存储器804和总线805。Please refer to FIG. 8 , which shows a schematic structural diagram of a terminal device provided by 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 .
处理器801包括一个或者一个以上处理核心,处理器801通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。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.
接收器802和发射器803可以实现为一个收发器806,该收发器806可以是一块通信芯片。The receiver 802 and the transmitter 803 can be implemented as a transceiver 806, and the transceiver 806 can be a communication chip.
存储器804通过总线805与处理器801相连。The memory 804 is connected to the processor 801 through the bus 805 .
存储器804可用于存储计算机程序,处理器801用于执行该计算机程序,以实现上述方法实施例中终端设备执行的各个步骤。The memory 804 may be used to store a computer program, and the processor 801 is used to execute the computer program, so as to implement various steps performed by the terminal device in the foregoing method embodiments.
此外,存储器804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:RAM(Random-Access Memory,随机存储器)和ROM(Read-Only Memory,只读存储器)、EPROM(Erasable Programmable Read-Only Memory,可擦写可编程只读存储器)、EEPROM(Electrically Erasable Programmable Read-Only Memory,电可擦写可编程只读存储器)、闪存或其他固态存储其技术,CD-ROM(Compact Disc Read-Only Memory,只读光盘)、DVD(Digital Video Disc,高密度数字视频光盘)或其他光学存储、磁带盒、磁带、磁盘存储或其他磁性存储设备。In addition, the memory 804 can be realized by any type of volatile or nonvolatile storage device or their combination, and the volatile or nonvolatile storage device includes but not limited to: RAM (Random-Access Memory, Random Access Memory) And ROM (Read-Only Memory, read-only memory), EPROM (Erasable Programmable Read-Only Memory, erasable programmable read-only memory), EEPROM (Electrically Erasable Programmable Read-Only Memory, electrically erasable programmable read-only memory memory), flash memory or other solid-state storage technology, CD-ROM (Compact Disc Read-Only Memory, CD-ROM), DVD (Digital Video Disc, high-density digital video disc) or other optical storage, tape cartridges, tapes, disks storage or other magnetic storage devices.
可选的,所述处理器801,用于基于时间差值,对上行HARQ-ACK反馈进行响应;Optionally, the processor 801 is configured to respond to the uplink HARQ-ACK feedback based on the time difference;
其中,所述时间差值是所述终端设备接收所述上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值。Wherein, the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
可选的,所述处理器801,用于基于所述时间差值与RTT之间的数值大小,对所述上行HARQ ACK反馈进行响应。Optionally, the processor 801 is configured to respond to the uplink HARQ ACK feedback based on a value between the time difference and the RTT.
可选的,所述处理器801,用于当所述时间差值小于所述RTT,且所述上行传输的重复传输还没有结束的情况下,则停止所述上行传输的剩余的重复传输。Optionally, the processor 801 is configured to stop the remaining repeated transmission of the uplink transmission when the time difference is smaller than the RTT and the repeated transmission of the uplink transmission has not ended.
可选的,所述处理器801,用于当所述时间差值小于所述RTT,且所述上行 传输的重复传输已经结束的情况下,则停止所述上行传输的HARQ进程对应的非连续接收DRX上行重传定时器。Optionally, the processor 801 is configured to stop the discontinuous process corresponding to the HARQ process of the uplink transmission when the time difference is less than the RTT and the repeated transmission of the uplink transmission has ended. Receive DRX uplink retransmission timer.
可选的,所述处理器801,用于当所述时间差值大于所述RTT的情况下,则停止所述终端设备的所有HARQ进程对应的DRX上行重传定时器。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.
可选的,所述RTT是对以下参数中的一种进行取整得到的值:Optionally, the RTT is a value obtained by rounding one of the following parameters:
所述终端设备与接入网设备之间的RTT值;The RTT value between the terminal device and the access network device;
所述终端设备的TA值;The TA value of the terminal device;
所述终端设备与卫星之间的RTT值;The RTT value between the terminal device and the satellite;
所述终端设备与接入网设备之间的RTT值与网络处理时间之和;The sum of the RTT value between the terminal device and the access network device and the network processing time;
所述终端设备的TA值与网络处理时间之和;The sum of the TA value of the terminal device and the network processing time;
所述终端设备与卫星之间的RTT与网络处理时间之和。The sum of RTT and network processing time between the terminal device and the satellite.
可选的,所述网络处理时间包括接入网设备处理时间和/或卫星处理时间。Optionally, the network processing time includes access network device processing time and/or satellite processing time.
可选的,所述取整为向上取整或向下取整。Optionally, the rounding is rounding up or rounding down.
可选的,所述取整以毫秒为单位。Optionally, the rounding is in milliseconds.
可选的,所述网络处理时间携带在如下信令中的至少一种:***消息;RRC专用信令;MAC CE;DCI。Optionally, the network processing time is carried in at least one of the following signaling: system message; RRC dedicated signaling; MAC CE; DCI.
可选的,所述处理器801,用于在第三时间点后,启动所述上行传输的HARQ进程对应的DRX上行重传定时器,所述第三时间点是所述终端设备发送完所述上行传输的最后一次重复传输的时间点;Optionally, the processor 801 is configured to start a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a third time point, where the third time point is when the terminal device finishes sending all The time point of the last repeated transmission of the above-mentioned uplink transmission;
或,or,
所述处理器801,用于在第四时间点后,启动所述上行传输的HARQ进程对应的DRX上行重传定时器,所述第四时间点是在所述第三时间点之后的一个时间点。The processor 801 is configured to start a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a fourth time point, where the fourth time point is a time after the third time point point.
可选的,所述上行传输包括PUSCH。Optionally, the uplink transmission includes PUSCH.
可选的,所述最近一次重复传输指的是在所述上行传输已完成的重复传输中,与所述第一时间点在时域上最靠近的一次重复传输。Optionally, the latest repeated transmission refers to the repeated transmission that is closest to the first time point in the time domain among the repeated transmissions that have been completed in the uplink transmission.
可选的,所述终端设备包括如下类型的终端设备中的至少一种:Optionally, the terminal equipment includes at least one of the following types of terminal equipment:
eMTC终端设备;低能力终端设备。eMTC Terminal Device; Low Capability Terminal Device.
本申请实施例还提供了一种计算机可读存储介质,所述存储介质中存储有计算机程序,所述计算机程序用于被终端设备的处理器执行,以实现上述终端设备侧的信息处理方法。An embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor of a terminal device, so as to implement the above information processing method on the terminal device side.
可选地,该计算机可读存储介质可以包括:ROM(Read-Only Memory,只读存储器)、RAM(Random-Access Memory,随机存储器)、SSD(Solid State Drives,固态硬盘)或光盘等。其中,随机存取记忆体可以包括ReRAM(Resistance Random Access Memory,电阻式随机存取记忆体)和DRAM(Dynamic Random Access Memory,动态随机存取存储器)。Optionally, the computer-readable storage medium may include: ROM (Read-Only Memory, read-only memory), RAM (Random-Access Memory, random access memory), SSD (Solid State Drives, solid state drive) or an optical disc, etc. Wherein, the random access memory may include ReRAM (Resistance Random Access Memory, resistive random access memory) and DRAM (Dynamic Random Access Memory, dynamic random access memory).
本申请实施例还提供了一种芯片,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片在终端设备上运行时,用于实现上述终端设备侧的信息处理 方法。The embodiment of the present application also provides a chip, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on the terminal device, it is used to implement the above information processing method on the terminal device side.
本申请实施例还提供了一种计算机程序产品或计算机程序,所述计算机程序产品或计算机程序包括计算机指令,所述计算机指令存储在计算机可读存储介质中,终端设备的处理器从所述计算机可读存储介质读取并执行所述计算机指令,以实现上述终端设备侧的信息处理方法。The embodiment of the present application also provides a computer program product or computer program, the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor of the terminal device reads from the computer The readable storage medium reads and executes the computer instructions, so as to implement the above information processing method on the terminal device side.
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。It should be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
在本文中提及的“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。The "plurality" mentioned herein means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship.
另外,本文中描述的步骤编号,仅示例性示出了步骤间的一种可能的执行先后顺序,在一些其它实施例中,上述步骤也可以不按照编号顺序来执行,如两个不同编号的步骤同时执行,或者两个不同编号的步骤按照与图示相反的顺序执行,本申请实施例对此不作限定。In addition, the numbering of the steps described herein only exemplarily shows a possible sequence of execution among the steps. In some other embodiments, the above-mentioned steps may not be executed according to the order of the numbers, such as two different numbers The steps are executed at the same time, or two steps with different numbers are executed in the reverse order as shown in the illustration, which is not limited in this embodiment of the present application.
本领域技术人员应该可以意识到,在上述一个或多个示例中,本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。Those skilled in the art should be aware that, in the foregoing one or more examples, the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof. When implemented in software, the 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.
以上所述仅为本申请的示例性实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。The above are only exemplary embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection of the application. within range.
Claims (32)
- 一种信息处理方法,其特征在于,所述方法由终端设备执行,所述方法包括:An information processing method, characterized in that the method is executed by a terminal device, and the method includes:基于时间差值,对上行混合自动重传请求确认HARQ-ACK反馈进行响应;Based on the time difference, respond to the uplink hybrid automatic repeat request confirmation HARQ-ACK feedback;其中,所述时间差值是所述终端设备接收所述上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值。Wherein, the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
- 根据权利要求1所述的方法,其特征在于,所述基于时间差值,对上行HARQ-ACK反馈进行响应,包括:The method according to claim 1, wherein the responding to the uplink HARQ-ACK feedback based on the time difference comprises:基于所述时间差值与往返传输时间RTT之间的数值大小,对所述上行HARQ-ACK反馈进行响应。Respond to the uplink HARQ-ACK feedback based on a numerical value between the time difference and the round-trip transmission time RTT.
- 根据权利要求2所述的方法,其特征在于,所述基于所述时间差值与RTT之间的数值大小,对所述上行HARQ-ACK反馈进行响应,包括:The method according to claim 2, wherein the responding to the uplink HARQ-ACK feedback based on the value between the time difference and RTT includes:当所述时间差值小于所述RTT,且所述上行传输的重复传输还没有结束的情况下,则停止所述上行传输的剩余的重复传输。When the time difference is smaller than the RTT and the repeated transmission of the uplink transmission has not ended, stop the remaining repeated transmission of the uplink transmission.
- 根据权利要求2所述的方法,其特征在于,所述基于所述时间差值与RTT之间的数值大小,对所述上行HARQ-ACK反馈进行响应,包括:The method according to claim 2, wherein the responding to the uplink HARQ-ACK feedback based on the value between the time difference and RTT includes:当所述时间差值小于所述RTT,且所述上行传输的重复传输已经结束的情况下,则停止所述上行传输的HARQ进程对应的非连续接收DRX上行重传定时器。When the time difference is smaller than the RTT and the repeated transmission of the uplink transmission has ended, stop the discontinuous reception DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission.
- 根据权利要求2所述的方法,其特征在于,所述基于所述时间差值与RTT之间的数值大小,对所述上行HARQ-ACK反馈进行响应,包括:The method according to claim 2, wherein the responding to the uplink HARQ-ACK feedback based on the value between the time difference and RTT includes:当所述时间差值大于所述RTT的情况下,则停止所述终端设备的所有HARQ进程对应的DRX上行重传定时器。When the time difference is greater than the RTT, stop the DRX uplink retransmission timers corresponding to all HARQ processes of the terminal device.
- 根据权利要求2至5任一所述的方法,其特征在于,所述RTT是对以下参数中的一种进行取整得到的值:The method according to any one of claims 2 to 5, wherein the RTT is a value obtained by rounding one of the following parameters:所述终端设备与接入网设备之间的RTT值;The RTT value between the terminal device and the access network device;所述终端设备的定时提前TA值;The timing of the terminal equipment is advanced by a TA value;所述终端设备与卫星之间的RTT值;The RTT value between the terminal device and the satellite;所述终端设备与接入网设备之间的RTT值与网络处理时间之和;The sum of the RTT value between the terminal device and the access network device and the network processing time;所述终端设备的TA值与网络处理时间之和;The sum of the TA value of the terminal device and the network processing time;所述终端设备与卫星之间的RTT与网络处理时间之和。The sum of RTT and network processing time between the terminal device and the satellite.
- 根据权利要求6所述的方法,其特征在于,The method according to claim 6, characterized in that,所述网络处理时间包括接入网设备处理时间和/或卫星处理时间。The network processing time includes access network device processing time and/or satellite processing time.
- 根据权利要求6或7所述的方法,其特征在于,The method according to claim 6 or 7, characterized in that,所述取整为向上取整或向下取整。The rounding is rounding up or rounding down.
- 根据权利要求6至8任一所述的方法,其特征在于,The method according to any one of claims 6 to 8, characterized in that,所述取整以毫秒为单位。The rounding is in milliseconds.
- 根据权利要求6至9任一所述的方法,其特征在于,所述网络处理时间 携带在如下信令中的至少一种:The method according to any one of claims 6 to 9, wherein the network processing time is carried in at least one of the following signalings:***消息;system information;无线资源控制RRC专用信令;Radio resource control RRC dedicated signaling;媒体接入控制控制信元MAC CE;Media Access Control Control Cell MAC CE;下行控制信息DCI。Downlink control information DCI.
- 根据权利要求1至10任一所述的方法,其特征在于,所述方法还包括:The method according to any one of claims 1 to 10, further comprising:在第三时间点后,启动所述上行传输的HARQ进程对应的DRX上行重传定时器,所述第三时间点是所述终端设备发送完所述上行传输的最后一次重复传输的时间点;After the third time point, start the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, the third time point is the time point when the terminal device sends the last repeated transmission of the uplink transmission;或,or,在第四时间点后,启动所述上行传输的HARQ进程对应的DRX上行重传定时器,所述第四时间点是在所述第三时间点之后的一个时间点。After the fourth time point, start the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission, where the fourth time point is a time point after the third time point.
- 根据权利要求1至11任一所述的方法,其特征在于,The method according to any one of claims 1 to 11, characterized in that,所述上行传输包括物理上行共享信道PUSCH。The uplink transmission includes a physical uplink shared channel PUSCH.
- 根据权利要求1至12任一所述的方法,其特征在于,The method according to any one of claims 1 to 12, characterized in that,所述最近一次重复传输指的是在所述上行传输已完成的重复传输中,与所述第一时间点在时域上最靠近的一次重复传输。The latest repeated transmission refers to the repeated transmission that is closest to the first time point in the time domain among the repeated transmissions that have been completed in the uplink transmission.
- 根据权利要求1至13任一所述的方法,其特征在于,所述终端设备包括如下类型的终端设备中的至少一种:The method according to any one of claims 1 to 13, wherein the terminal equipment includes at least one of the following types of terminal equipment:增强的机器类型通信eMTC终端设备;Enhanced machine type communication eMTC terminal equipment;低能力终端设备。Low-capability terminal equipment.
- 一种信息处理装置,其特征在于,所述装置包括:响应模块;An information processing device, characterized in that the device includes: a response module;所述响应模块,用于基于时间差值,对上行混合自动重传请求确认HARQ-ACK反馈进行响应;The response module is configured to respond to the uplink hybrid automatic repeat request confirmation HARQ-ACK feedback based on the time difference;其中,所述时间差值是所述终端设备接收所述上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值。Wherein, the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
- 根据权利要求15所述的装置,其特征在于,The device according to claim 15, characterized in that,所述响应模块,用于基于所述时间差值与往返传输时间RTT之间的数值大小,对所述上行HARQ-ACK反馈进行响应。The responding module is configured to respond to the uplink HARQ-ACK feedback based on a numerical value between the time difference and a round-trip transmission time RTT.
- 根据权利要求16所述的装置,其特征在于,The device according to claim 16, characterized in that,所述响应模块,用于当所述时间差值小于所述RTT,且所述上行传输的重复传输还没有结束的情况下,则停止所述上行传输的剩余的重复传输。The response module is configured to stop the remaining repeated transmission of the uplink transmission when the time difference is less than the RTT and the repeated transmission of the uplink transmission has not ended.
- 根据权利要求16所述的装置,其特征在于,The device according to claim 16, characterized in that,所述响应模块,用于当所述时间差值小于所述RTT,且所述上行传输的重复传输已经结束的情况下,则停止所述上行传输的HARQ进程对应的非连续接收DRX上行重传定时器。The response module is configured to stop the discontinuous reception DRX uplink retransmission corresponding to the HARQ process of the uplink transmission when the time difference is less than the RTT and the repeated transmission of the uplink transmission has ended timer.
- 根据权利要求16所述的装置,其特征在于,The device according to claim 16, characterized in that,所述响应模块,用于当所述时间差值大于所述RTT的情况下,则停止所述终端设备的所有HARQ进程对应的DRX上行重传定时器。The response module 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.
- 根据权利要求16至19任一所述的装置,其特征在于,所述RTT是对以下参数中的一种进行取整得到的值:The device according to any one of claims 16 to 19, wherein the RTT is a value obtained by rounding one of the following parameters:所述终端设备与接入网设备之间的RTT值;The RTT value between the terminal device and the access network device;所述终端设备的定时提前TA值;The timing of the terminal equipment is advanced by a TA value;所述终端设备与卫星之间的RTT值;The RTT value between the terminal device and the satellite;所述终端设备与接入网设备之间的RTT值与网络处理时间之和;The sum of the RTT value between the terminal device and the access network device and the network processing time;所述终端设备的TA值与网络处理时间之和;The sum of the TA value of the terminal device and the network processing time;所述终端设备与卫星之间的RTT与网络处理时间之和。The sum of RTT and network processing time between the terminal device and the satellite.
- 根据权利要求20所述的装置,其特征在于,The device according to claim 20, characterized in that,所述网络处理时间包括接入网设备处理时间和/或卫星处理时间。The network processing time includes access network device processing time and/or satellite processing time.
- 根据权利要求20或21所述的装置,其特征在于,Apparatus according to claim 20 or 21, characterized in that,所述取整为向上取整或向下取整。The rounding is rounding up or rounding down.
- 根据权利要求20至22任一所述的装置,其特征在于,Apparatus according to any one of claims 20 to 22, characterized in that,所述取整以毫秒为单位。The rounding is in milliseconds.
- 根据权利要求20至23任一所述的装置,其特征在于,所述网络处理时间携带在如下信令中的至少一种:The device according to any one of claims 20 to 23, wherein the network processing time is carried in at least one of the following signalings:***消息;system information;无线资源控制RRC专用信令;Radio resource control RRC dedicated signaling;媒体接入控制控制信元MAC CE;Media Access Control Control Cell MAC CE;下行控制信息DCI。Downlink control information DCI.
- 根据权利要求16至24任一所述的装置,其特征在于,所述装置还包括:定时器启动模块;The device according to any one of claims 16 to 24, wherein the device further comprises: a timer starting module;所述定时器启动模块,用于在第三时间点后,启动所述上行传输的HARQ进程对应的DRX上行重传定时器,所述第三时间点是所述终端设备发送完所述上行传输的最后一次重复传输的时间点;The timer starting module is configured to start a DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a third time point, where the third time point is when the terminal device finishes sending the uplink transmission The time point of the last repeated transmission of ;或,or,所述定时器启动模块,用于在第四时间点后,启动所述上行传输的HARQ进程对应的DRX上行重传定时器,所述第四时间点是在所述第三时间点之后的一个时间点。The timer starting module is configured to start the DRX uplink retransmission timer corresponding to the HARQ process of the uplink transmission after a fourth time point, where the fourth time point is one after the third time point point in time.
- 根据权利要求16至25任一所述的装置,其特征在于,A device according to any one of claims 16 to 25, wherein所述上行传输包括物理上行共享信道PUSCH。The uplink transmission includes a physical uplink shared channel PUSCH.
- 根据权利要求16至26任一所述的装置,其特征在于,Apparatus according to any one of claims 16 to 26, characterized in that,所述最近一次重复传输指的是在所述上行传输已完成的重复传输中,与所述第一时间点在时域上最靠近的一次重复传输。The latest repeated transmission refers to the repeated transmission that is closest to the first time point in the time domain among the repeated transmissions that have been completed in the uplink transmission.
- 根据权利要求16至27任一所述的装置,其特征在于,所述终端设备包括如下类型的终端设备中的至少一种:The apparatus according to any one of claims 16 to 27, wherein the terminal equipment includes at least one of the following types of terminal equipment:增强的机器类型通信eMTC终端设备;Enhanced machine type communication eMTC terminal equipment;低能力终端设备。Low-capability terminal equipment.
- 一种终端设备,其特征在于,所述终端设备包括处理器;A terminal device, characterized in that the terminal device includes a processor;所述处理器,用于基于时间差值,对上行混合自动重传请求确认HARQ-ACK反馈进行响应;The processor is configured to respond to the uplink hybrid automatic repeat request confirmation HARQ-ACK feedback based on the time difference;其中,所述时间差值是所述终端设备接收所述上行HARQ-ACK反馈的第一时间点与上行传输的最近一次重复传输的第二时间点之间的差值。Wherein, the time difference is a difference between the first time point when the terminal device receives the uplink HARQ-ACK feedback and the second time point of the latest repeated transmission of the uplink transmission.
- 一种计算机可读存储介质,其特征在于,所述存储介质中存储有计算机程序,所述计算机程序用于被处理器执行,以实现如权利要求1至14任一项所述的信息处理方法。A computer-readable storage medium, wherein a computer program is stored in the storage medium, and the computer program is used to be executed by a processor to implement the information processing method according to any one of claims 1 to 14 .
- 一种芯片,其特征在于,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片运行时,用于实现如权利要求1至14任一项所述的信息处理方法。A chip, characterized in that the chip includes programmable logic circuits and/or program instructions, which are used to implement the information processing method according to any one of claims 1 to 14 when the chip is running.
- 一种计算机程序产品或计算机程序,其特征在于,所述计算机程序产品或计算机程序包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质读取并执行所述计算机指令,以实现如权利要求1至14任一项所述的信息处理方法。A computer program product or computer program, characterized in that the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor reads the computer-readable storage medium from the computer-readable storage medium And execute the computer instructions to realize the information processing method according to any one of claims 1 to 14.
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