WO2022222879A1 - Pdsch传输、接收方法、装置及通信设备 - Google Patents
Pdsch传输、接收方法、装置及通信设备 Download PDFInfo
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- WO2022222879A1 WO2022222879A1 PCT/CN2022/087336 CN2022087336W WO2022222879A1 WO 2022222879 A1 WO2022222879 A1 WO 2022222879A1 CN 2022087336 W CN2022087336 W CN 2022087336W WO 2022222879 A1 WO2022222879 A1 WO 2022222879A1
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- 238000000034 method Methods 0.000 title claims abstract description 199
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- 230000000694 effects Effects 0.000 description 11
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04L1/1607—Details of the supervisory signal
- H04L1/1685—Details of the supervisory signal the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04L1/1829—Arrangements specially adapted for the receiver end
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
Definitions
- the present application relates to the field of communication technologies, and in particular, to a PDSCH transmission and reception method, apparatus, and communication device.
- a user equipment User Equipment, UE
- UE User Equipment
- HARQ-ACK Hybrid automatic repeat request acknowledgement
- the base station cannot schedule the PDSCH of the same process until the expected HARQ-ACK transmission ends.
- the HARQ-ACK may not be fed back. If the existing solution is adopted, the base station cannot determine when scheduling the PDSCH with the same HARQ process as the group common PDSCH. its scheduling time.
- the embodiments of the present application provide a PDSCH transmission and reception method, apparatus, and communication device, which can solve the problem that the existing PDSCH scheduling method is not suitable for transmitting a group common PDSCH of a multicast/broadcast service.
- a PDSCH transmission method including:
- the network side device determines the first time;
- the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH, the first time is related to the first information, and the first information indicates whether the terminal feeds back the hybrid automatic of the first PDSCH.
- Retransmission request acknowledgement HARQ-ACK
- the network side device sends the second PDSCH at a time not earlier than the first time.
- a PDSCH receiving method including:
- the terminal receives the second PDSCH;
- the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH;
- the first time is related to first information, and the first information indicates whether the terminal feeds back the HARQ-ACK of the hybrid automatic repeat request of the first PDSCH.
- a PDSCH transmission apparatus including:
- the first determining module is configured to determine the first time when the second HARQ process corresponding to the second physical downlink shared channel PDSCH scheduled by the network side device is the same as the first HARQ process corresponding to the first PDSCH ; wherein, the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH, the first time is related to the first information, and the first information indicates whether the terminal feeds back the first PDSCH Hybrid automatic repeat request for PDSCH acknowledges HARQ-ACK;
- a first transmission module configured to transmit the second PDSCH at a time not earlier than the first time.
- a PDSCH receiving apparatus including:
- the first receiving module is used for the second HARQ process corresponding to the second physical downlink shared channel PDSCH to be the same as the first HARQ process corresponding to the first PDSCH, and the transmission time of the second PDSCH is not earlier than In the case of the first time, the terminal receives the second PDSCH;
- the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH;
- the first time is related to first information, and the first information indicates whether the terminal feeds back the HARQ-ACK of the hybrid automatic repeat request of the first PDSCH.
- a network-side device in a fifth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the first aspect when executed.
- a network side device including a processor and a communication interface, wherein the processor is used for a second hybrid automatic repeat request HARQ process corresponding to a second physical downlink shared channel PDSCH scheduled by the network side device
- the processor is used for a second hybrid automatic repeat request HARQ process corresponding to a second physical downlink shared channel PDSCH scheduled by the network side device
- determine the first time wherein the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH, and the first time
- the first information indicates whether the terminal feeds back the HARQ-ACK of the HARQ-ACK of the first PDSCH
- the communication interface is configured to transmit the second PDSCH at a time no earlier than the first time.
- a terminal in a seventh aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor. The steps of implementing the method of the second aspect.
- a terminal including a processor and a communication interface, wherein the communication interface is used for a second hybrid automatic repeat request HARQ process corresponding to the second physical downlink shared channel PDSCH corresponding to the first PDSCH. If the first HARQ process is the same, and the transmission time of the second PDSCH is not earlier than the first time, the terminal receives the second PDSCH;
- the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH;
- the first time is related to first information, and the first information indicates whether the terminal feeds back the HARQ-ACK of the hybrid automatic repeat request of the first PDSCH.
- a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps as described in the first aspect are implemented.
- the steps of the method of the second aspect are implemented.
- a tenth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect , or implement the method described in the second aspect.
- a computer program product is provided, the computer program product is stored in a non-transitory storage medium, the computer program product is executed by at least one processor to implement the first aspect or the second aspect the steps of the method.
- a twelfth aspect provides a communication device configured to perform the steps of the method of the first aspect or the second aspect.
- the first time is determined, and the first time is not earlier than the first time.
- send the second PDSCH so that when the first PDSCH does not feed back the HARQ-ACK
- the sending time of the second PDSCH can also be determined, that is, the embodiment of the present application can be applied to the group common PDSCH or It is a PDSCH that does not feed back HARQ-ACK information, and ensures that the terminal has enough time to process the received PDSCH, which improves the effectiveness of system communication.
- FIG. 1 shows a structural diagram of a communication system to which an embodiment of the present application can be applied
- FIG. 2 shows a schematic flowchart of a PDSCH transmission method according to an embodiment of the present application
- FIG. 3 shows a schematic diagram of the position between PDSCH1 and PDSCH2 in the embodiment of the present application
- FIG. 4 shows a schematic flowchart of a PDSCH receiving method according to an embodiment of the present application
- FIG. 5 shows a schematic diagram of a PDSCH transmission module according to an embodiment of the present application
- FIG. 6 shows a structural block diagram of a network side device according to an embodiment of the present application.
- FIG. 7 shows a schematic diagram of a PDSCH receiving module according to an embodiment of the present application.
- FIG. 8 shows a structural block diagram of a communication device according to an embodiment of the present application.
- FIG. 9 shows a structural block diagram of a terminal according to an embodiment of the present application.
- first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
- the first object may be one or multiple.
- “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
- LTE Long Term Evolution
- LTE-Advanced LTE-Advanced
- LTE-A Long Term Evolution-Advanced
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-carrier Frequency-Division Multiple Access
- system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
- NR New Radio
- the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the following description, these techniques are also applicable to applications other than NR system applications, such as 6th Generation (6th Generation ) , 6G) communication system.
- 6th Generation 6th Generation
- 6G 6th Generation
- FIG. 1 shows a structural diagram of a wireless communication system to which an embodiment of the present application can be applied.
- the wireless communication system includes a terminal 11 and a network-side device 12 .
- the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), PDA, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device ( Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, headphones, glasses, etc.
- the network side device 12 may be a base station or a core network device, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic Service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Networks, WLAN) access point, Wireless Fidelity (Wireless Fidelity, WiFi) node, Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station does not Limited to specific technical vocabulary, it should be noted that in the embodiments of this application, only the base station in the NR system is used as an example, but the specific type of the base
- an embodiment of the present application provides a PDSCH transmission method, including:
- Step 201 In the case that the second HARQ process corresponding to the second physical downlink shared channel PDSCH scheduled by the network side device is the same as the first HARQ process corresponding to the first PDSCH, the network side device determines the first time;
- the first PDSCH is a PDSCH scheduled by the network side device before scheduling the second PDSCH, the first time is related to first information, and the first information indicates whether the terminal feeds back the first PDSCH
- the HARQ-ACK is acknowledged by the HARQ-ACK.
- the network side device determines the first time.
- the first PDSCH is a group common PDSCH.
- Step 202 The network side device sends the second PDSCH at a time not earlier than the first time.
- the second PDSCH is sent at a time not earlier than the first time (that is, the start position of the second PDSCH is not earlier than the first time) to ensure that the terminal has enough time to process the received first PDSCH.
- the network side device may send the second PDSCH at any time not earlier than the first time.
- the first time is determined, and the first time is not earlier than the first time.
- the second PDSCH is sent, so that when the first PDSCH does not feed back the HARQ-ACK, the sending time of the second PDSCH can also be determined, that is, the embodiment of the present application can be applied to the group common transmission of multicast/broadcast services.
- the PDSCH or the PDSCH that does not feed back HARQ-ACK information can ensure that the terminal has enough time to process the received PDSCH, which improves the effectiveness of system communication.
- the network-side device determining the first time includes:
- the network-side device determines the first time according to at least one of an indication manner of the first information and content of the first information
- the indication manner includes at least one of the following:
- Radio Resource Control Radio Resource Control
- MAC CE Medium Access Control Element
- Downlink Control Information Downlink Control Information
- Mechanisms for determining the first time include:
- the first time is determined according to a feedback timing indication or a predefined rule in the first downlink control information DCI.
- different mechanisms are used to determine the first time, so as to ensure that the terminal has enough time to process the received first PDSCH before receiving the second PDSCH.
- the network-side device determines the first time according to at least one of an indication manner of the first information and content of the first information, including:
- the network side device In the case that the first information is indicated by higher layer signaling, such as RRC, and the first information indicates that the terminal does not feed back the HARQ-ACK of the first PDSCH, the network side device according to the first downlink the feedback timing indication or predefined rule in the control information DCI to determine the first time;
- the first DCI is the DCI for scheduling the first PDSCH.
- the network-side device determines the first time according to at least one of an indication manner of the first information and content of the first information, including:
- the network side device determines the first time according to a predefined rule, or determines the first time according to the content of the first information.
- determining the first time according to the content of the first information includes:
- the first information indicates that the terminal feeds back the HARQ-ACK of the first PDSCH, according to the end position of the transmission of HARQ-ACK for the first PDSCH (the end of the transmission of HARQ-ACK for the first PDSCH) PDSCH, or the end of the transmission of HARQ-ACK for that HARQ process), determine the first time, that is, the end position of the HARQ-ACK of the first PDSCH as the first time;
- the first time is determined according to a feedback timing indication or a predefined rule in the first downlink control information DCI;
- the first DCI is the DCI for scheduling the first PDSCH.
- one PDSCH corresponds to one HARQ process.
- the determining of the first time according to the feedback timing indication in the first downlink control information DCI includes:
- the target position of the time unit for feeding back the HARQ-ACK is determined as the first time.
- the above-mentioned time unit can be a time slot or a sub-slot or a symbol
- the target position includes one of the following:
- the PUCCH or PUSCH that transmits HARQ-ACK may be the PUCCH or PUSCH resource determined when it is assumed that the first PDSCH needs to feed back HARQ-ACK, but actually the first PDSCH may not send HARQ-ACK (for example, because the first PDSCH does not need to send HARQ-ACK) Feedback HARQ-ACK without sending HARQ-ACK (PUCCH or PUCCH or PUSCH channel cannot be transmitted due to other reasons), or, the above-mentioned PUCCH or PUSCH for transmitting HARQ-ACK may be based on other needs to feed back HARQ-ACK in this time unit PUCCH or PUSCH resources determined by HARQ-ACK feedback of PDSCH and/or other types of uplink control information (Uplink Control Information UCI), where other types of UCI may be channel state information (Channel State Information, CSI) or scheduling request (Scheduling Request, SR).
- UCI Uplink Control Information
- the predefined rules include:
- the first time is determined according to a position at time T1 after the end position of the first PDSCH.
- the T1 time is predefined, or the T1 time is determined according to the processing time of the PDSCH, or the T1 time is determined according to the subcarrier interval of the PDSCH, or the T1 time and
- the terminal capability is related, or the T1 time is reported by the terminal to the network side device, or the T1 time is an end time corresponding to the maximum number of retransmissions.
- the unit of the T1 time may be a symbol, a time unit, or an absolute time length.
- the duration corresponding to T1 is ⁇ times the processing time of PDSCH, 0 ⁇ 1.
- ⁇ is used to represent the subcarrier spacing of PDSCH or PDCCH scheduling PDSCH or the minimum subcarrier spacing between the subcarrier spacing of PDSCH and the subcarrier spacing of PDCCH scheduling PDSCH, wherein the subcarrier spacing is expressed as 15*2 ⁇ kHz.
- the network side device configures the group public PDSCH (optional, the group public PDSCH here is not the PDSCH scrambled by the system information RNTI (System Information RNTI, SI-RNTI), mainly refers to the PDSCH that transmits multicast/broadcast services, such as Whether the PDSCH scrambled by the group RNTI (Group RNTI, G-RNTI) or the PDSCH scrambled by the group configuration scheduling RNTI (Group Configured Scheduling RNTI, G-CS-RNTI) is fed back HARQ-ACK. For example, for UE1, the network side device configures it not to feed back the HARQ-ACK of the group common PDSCH.
- system information RNTI System Information RNTI
- SI-RNTI System Information RNTI
- the network side equipment schedules PDSCH1, and its end position is symbol i, where the HARQ process ID (HARQ process ID) of PDSCH1 is x, after PDSCH1, the base station schedules PDSCH2, and the HARQ process ID of PDSCH2 is also x, where x is a non-integer, and the value of x ranges from 0 to Y, where Y is the maximum number of HARQ processes supported by PDSCH on the scheduled cell. For example, if x is 0, 1, 2, ...., 15, then PDSCH2 needs to meet at least one of the following conditions:
- DCI scheduling PDSCH1 is DCI 1
- DCI 1 contains the timing indication of PDSCH to HARQ-ACK feedback (such as the indication field PDSCH-to-HARQ_feedback timing indicator)
- the timing indication in DCI 1 refers to k1
- the UE determines the time unit corresponding to PDSCH1 feedback HARQ-ACK according to k1, and ensures that PDSCH2 and the determined time unit satisfy one of the following:
- the starting position of PDSCH2 is not earlier than the starting position, ending position or predefined position of the determined time unit (such as the middle position of the time unit);
- the UE determines to feed back the transmission resource corresponding to the HARQ-ACK according to the HARQ-ACK of PDSCH1, and the starting position of PDSCH2 is not earlier than the end position of the HARQ-ACK transmission resource corresponding to PDSCH1;
- the time unit corresponding to PDSCH1 feedback HARQ-ACK may also be determined according to the feedback timing indication configured by RRC, for example, through d1-DataToUL-ACK, d1 -
- the value configured by at least one parameter in DataToUL-ACK-r16 and dl-DataToUL-ACKForDCIFormat1_2 determines the feedback timing indication.
- Condition 2 The starting position of PDSCH2 cannot be earlier than the first time determined according to the predefined rule
- the predefined rule is to determine the first time according to the position at time T1 after the end position of the first PDSCH, that is, the end position of T1 is the first time.
- T1 includes a preset number of symbols, and under different subcarrier intervals and/or different PDSCH processing capabilities, the number of symbols included in T1 is different; or, the TI is a predefined time, for example, PDSCH processing time.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the network side device indicates through DCI whether the group common PDSCH (optionally, the group common PDSCH here is not the PDSCH scrambled by SI-RNTI, mainly refers to the PDSCH transmitting multicast/broadcast services) whether to feed back HARQ-ACK.
- the network side device indicates whether the UE feeds back the HARQ-ACK of the group of common PDSCH through the DCI of the scheduling group common PDSCH, for example, by using a specific field in the DCI of the scheduling group common PDSCH to indicate directly or implicitly indicate through other means, which is not performed here. limited.
- the network side equipment schedules PDSCH1, and its end position is symbol i, where the HARQ process ID of PDSCH1 is 0, after PDSCH1, the network side equipment schedules PDSCH2, and the HARQ process ID of PDSCH2 is also 0, then PDSCH2 needs to meet at least one of the following conditions:
- Condition 1 Determine the first time according to whether the DCI instructs the UE to feed back the HARQ-ACK information of the first PDSCH, and the starting position of PDSCH2 is not earlier than the first time;
- the first time is the end position of the first PDSCH HARQ-ACK transmission, that is, the start position of PDSCH2 is not earlier than the end position of the HARQ-ACK transmission of PDSCH1 (the end of the transmission of HARQ-ACK for PDSCH1, or the end of the transmission of HARQ-ACK for that HARQ process);
- the first time is determined according to the feedback timing indication of the DCI terminal or the above-mentioned predefined rule.
- Condition 2 The starting position of PDSCH2 is not earlier than the first time determined according to a predefined rule.
- the UE determines the first time according to a predefined rule.
- the HARQ-ACK of the first PDSCH includes at least one of an acknowledgement (Acknowledgement, ACK) and a non-acknowledgement (Non Acknowledgement, NACK).
- the embodiments of the present application are also applicable to PDSCH configured with NACK only feedback mode.
- the UE For PDSCH configured with NACK only feedback mode, the UE only feeds back NACK when it fails to decode the PDSCH successfully, otherwise the UE does not need to Feedback HARQ information.
- the definition of the first time in this embodiment of the present application is also applicable to the PDSCH in this mode.
- the base station sends the first PDSCH, and if NACK is received, the first time is determined according to the transmission end position of the NACK, and if no NACK is received, the first time is determined according to the above-mentioned predefined manner or the timing indication in the DCI.
- the embodiments of the present application are also applicable to the PDSCH configured with the feedback mode of NACK skipping or ACK skipping, wherein, for the PDSCH configured with the NACK skipping feedback mode, the UE does not need to feedback NACK when it fails to successfully decode the PDSCH, or, For PDSCH configured with ACK skipping feedback mode, ACK does not need to be fed back when PDSCH is successfully decoded.
- the definition of the first time in this embodiment of the present application is also applicable to the PDSCH in this mode. That is, the base station sends the first PDSCH.
- the first time is determined according to the transmission end position of ACK/NACK, and if ACK/NACK is not received, according to The above-mentioned predefined manner or the timing indication in the DCI determines the first time.
- the first time is determined, and the first time is not earlier than the first time.
- the second PDSCH is sent, so that when the first PDSCH does not feed back HARQ-ACK, the sending time of the second PDSCH can also be determined, that is, the embodiment of the present application can be applied to the group common PDSCH that transmits multicast/broadcast services Or it is a PDSCH that does not feed back HARQ-ACK information, and ensures that the terminal has enough time to process the received PDSCH, which improves the effectiveness of system communication.
- an embodiment of the present application also provides a PDSCH receiving method, including:
- Step 401 The second HARQ process corresponding to the second physical downlink shared channel PDSCH is the same as the first HARQ process corresponding to the first PDSCH, and the transmission time of the second PDSCH is not earlier than the first time.
- the terminal receives the second PDSCH;
- the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH;
- the first time is related to first information, and the first information indicates whether the terminal feeds back the HARQ-ACK of the HARQ-ACK of the first PDSCH.
- the first PDSCH is a group common PDSCH.
- the network side device determines the first time, and the first time is not earlier than the first time.
- the terminal receives the second PDSCH at a time not earlier than the first time. In this way, when the first PDSCH does not feed back HARQ-ACK, the sending time of the second PDSCH can also be determined.
- the embodiments of the present application can be applied to the group common PDSCH for transmitting multicast/broadcast services or the PDSCH that does not feed back HARQ-ACK information, and it is guaranteed that the terminal has enough time to process the received PDSCH, which improves the system communication efficiency. effectiveness.
- the method of the embodiment of the present application further includes:
- the terminal does not expect to receive the HARQ process before the first time PDSCH (the UE is not expected to receive another PDSCH for a given HARQ process starting earlier than T1).
- the terminal determines that the scheduling is wrong.
- the method before the receiving the second PDSCH, the method further includes:
- the first PDSCH is received.
- the second PDSCH is received under the condition that the transmission time of the second PDSCH is not earlier than the first time, so as to ensure that the terminal has enough time to process the received first PDSCH.
- the network side device determines the first time, and the first time is not earlier than the first time.
- the terminal receives the second PDSCH at a time not earlier than the first time. In this way, when the first PDSCH does not feed back HARQ-ACK, the sending time of the second PDSCH can also be determined.
- the embodiments of the present application can be applied to the group common PDSCH for transmitting multicast/broadcast services or the PDSCH that does not feed back HARQ-ACK information, and it is guaranteed that the terminal has enough time to process the received PDSCH, which improves the system communication efficiency. effectiveness.
- the execution subject may be a PDSCH transmission apparatus, or a control module in the PDSCH transmission apparatus for executing the PDSCH transmission method.
- the PDSCH transmission device provided by the embodiments of the present application is described by taking the PDSCH transmission method performed by the PDSCH transmission device as an example.
- an embodiment of the present application further provides a PDSCH transmission apparatus 500, including:
- the first determining module 501 is configured to determine the first HARQ process corresponding to the second HARQ process corresponding to the second physical downlink shared channel PDSCH scheduled by the network side device is the same as the first HARQ process corresponding to the first PDSCH. time; wherein, the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH, the first time is related to first information, and the first information indicates whether the terminal feeds back the first PDSCH HARQ-ACK for a PDSCH HARQ-ACK;
- the first transmission module 502 is configured to transmit the second PDSCH at a time not earlier than the first time.
- the first determining module is configured to determine the first time according to at least one of an indication manner of the first information and content of the first information;
- the indication manner includes at least one of the following:
- the first determining module is configured to, when the first information is indicated by high-layer signaling, and the first information indicates that the terminal does not feed back the HARQ-ACK of the first PDSCH, the The network side device determines the first time according to the feedback timing indication or predefined rule in the first downlink control information DCI;
- the first DCI is the DCI for scheduling the first PDSCH.
- the first determining module is configured to determine, by the network-side device, the first time according to a predefined rule when the first information is indicated by the DCI, or, according to the first The content of the information determines the first time.
- the first determining module is configured to, when the first information indicates that the terminal feeds back the HARQ-ACK of the first PDSCH, according to the end position of the HARQ-ACK of the first PDSCH, determining said first time;
- the first time is determined according to a feedback timing indication or a predefined rule in the first downlink control information DCI;
- the first DCI is the DCI for scheduling the first PDSCH.
- the first determining module includes:
- a first determination submodule configured to determine a time unit for feeding back the HARQ-ACK according to the feedback timing indication in the first DCI
- the second determination submodule is configured to determine the target position of the time unit for feeding back the HARQ-ACK as the first time.
- the target location includes one of the following:
- the predefined rules include:
- the first time is determined according to a position at time T1 after the end position of the first PDSCH.
- the T1 time is predefined, or the T1 time is determined according to the processing time of the PDSCH, or the T1 time is determined according to the subcarrier interval of the PDSCH, or the T1 time It is related to the capability of the terminal, or the T1 time is reported by the terminal to the network side device, or the T1 time is an end time corresponding to the maximum number of retransmissions.
- the first time is determined, and the first time is not earlier than the first time.
- the second PDSCH is sent, so that when the first PDSCH does not feed back the HARQ-ACK, the sending time of the second PDSCH can also be determined, that is, the embodiment of the present application can be applied to the group common transmission of multicast/broadcast services.
- the PDSCH or the PDSCH that does not feed back HARQ-ACK information can ensure that the terminal has enough time to process the received PDSCH, which improves the effectiveness of system communication.
- the apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment of FIG. 2 and achieve the same technical effect, and to avoid repetition, details are not described here.
- the embodiment of the present application also provides a network side device, including a processor and a communication interface, where the processor is used for the second hybrid automatic repeat request HARQ process corresponding to the second physical downlink shared channel PDSCH scheduled by the network side device and the first HARQ process. If the first HARQ process corresponding to the PDSCH is the same, determine the first time; wherein, the first PDSCH is the PDSCH scheduled by the network-side device before scheduling the second PDSCH, and the first time is the same as the first time. Information related, the first information indicates whether the terminal feeds back the HARQ-ACK of the HARQ-ACK of the first PDSCH; the communication interface is used to send the second PDSCH at a time not earlier than the first time .
- This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
- the network device 600 includes: an antenna 601 , a radio frequency device 602 , and a baseband device 603 .
- the antenna 601 is connected to the radio frequency device 602 .
- the radio frequency device 602 receives information through the antenna 601, and sends the received information to the baseband device 603 for processing.
- the baseband device 603 processes the information to be sent and sends it to the radio frequency device 602
- the radio frequency device 602 processes the received information and sends it out through the antenna 601 .
- the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 603 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 603 , where the baseband apparatus 603 includes a processor 604 and a memory 605 .
- the baseband device 603 may include, for example, at least one baseband board on which multiple chips are arranged. As shown in FIG. 6 , one of the chips is, for example, the processor 604, which is connected to the memory 605 to call the program in the memory 605 to execute The network-side device shown in the above method embodiments operates.
- the baseband device 603 may further include a network interface 606 for exchanging information with the radio frequency device 602, the interface being, for example, Common Public Radio Interface (CPRI).
- CPRI Common Public Radio Interface
- the network-side device in this embodiment of the present application further includes: instructions or programs that are stored in the memory 605 and run on the processor 604, and the processor 604 invokes the instructions or programs in the memory 605 to execute the modules shown in FIG. 5 .
- an embodiment of the present application further provides a PDSCH receiving apparatus 700, including:
- the first receiving module 701 is used for the second HARQ process corresponding to the second physical downlink shared channel PDSCH to be the same as the first HARQ process corresponding to the first PDSCH, and the transmission time of the second PDSCH is not earlier In the case of the first time, the terminal receives the second PDSCH;
- the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH;
- the first time is related to first information, and the first information indicates whether the terminal feeds back the HARQ-ACK of the hybrid automatic repeat request of the first PDSCH.
- the device in the embodiment of the present application further includes:
- the second determining module is configured to determine the first time.
- the first time may be determined through network instructions or predefined rules.
- the device in the embodiment of the present application further includes:
- the first processing module is used for if the second hybrid automatic repeat request HARQ process corresponding to the second physical downlink shared channel PDSCH scheduled by the network side device is the same as the first HARQ process corresponding to the first PDSCH, it is not expected that the second HARQ process corresponding to the first PDSCH
- the second PDSCH is received a time ago (the UE is not expected to receive another PDSCH for a given HARQ process starting earlier than T1).
- the device in the embodiment of the present application further includes:
- the second receiving module is configured to receive the first PDSCH before the first receiving module receives the second PDSCH.
- the first PDSCH is a group common PDSCH.
- the network side device determines the first time, and the first time is not earlier than the first time.
- the terminal receives the second PDSCH at a time not earlier than the first time.
- the first PDSCH when it does not feed back HARQ-ACK, it can also determine the sending of the second PDSCH Time, that is, the embodiments of this application can be applied to the group common PDSCH for transmitting multicast/broadcast services or the PDSCH that does not feed back HARQ-ACK information, and it is guaranteed that the terminal has enough time to process the received PDSCH, which improves system communication. effectiveness.
- the PDSCH receiving apparatus in this embodiment of the present application may be an apparatus, an apparatus having an operating system or an electronic device, and may also be a component, an integrated circuit, or a chip in a terminal.
- the apparatus or electronic device may be a mobile terminal or a non-mobile terminal.
- the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
- the apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment in FIG. 4 and achieve the same technical effect, and to avoid repetition, details are not described here.
- an embodiment of the present application further provides a communication device 800, including a processor 801, a memory 802, a program or instruction stored in the memory 802 and executable on the processor 801,
- a communication device 800 including a processor 801, a memory 802, a program or instruction stored in the memory 802 and executable on the processor 801
- the communication device 800 is a terminal
- the program or instruction is executed by the processor 801
- each process of the above-mentioned embodiments of the PDSCH receiving method applied to the terminal can be achieved, and the same technical effect can be achieved.
- the communication device 800 is a network-side device
- the program or instruction is executed by the processor 801
- each process of the above-mentioned embodiment of the PDSCH transmission method applied to the network-side device can be realized, and the same technical effect can be achieved. To avoid repetition, here No longer.
- An embodiment of the present application further provides a terminal, including a processor and a communication interface, where the communication interface is used for: a second HARQ process corresponding to a second physical downlink shared channel PDSCH and a first HARQ process corresponding to the first PDSCH If the process is the same, and the transmission time of the second PDSCH is not earlier than the first time, the terminal receives the second PDSCH;
- the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH;
- the first time is related to first information, and the first information indicates whether the terminal feeds back the HARQ-ACK of the hybrid automatic repeat request of the first PDSCH.
- FIG. 9 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.
- the terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, and a display unit 906 , the user input unit 907 , the interface unit 908 , the memory 909 , and at least some of the components in the processor 910 and the like.
- the terminal 900 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 910 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
- a power source such as a battery
- the terminal structure shown in FIG. 9 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
- the input unit 904 may include a graphics processor (Graphics Processing Unit, GPU) 9041 and a microphone 9042. Such as camera) to obtain still pictures or video image data for processing.
- the display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
- the user input unit 907 includes a touch panel 9071 and other input devices 9072 .
- the touch panel 9071 is also called a touch screen.
- the touch panel 9071 may include two parts, a touch detection device and a touch controller.
- Other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
- the radio frequency unit 901 receives the downlink data from the network side device, and then processes it to the processor 910; in addition, sends the uplink data to the network side device.
- the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
- Memory 909 may be used to store software programs or instructions as well as various data.
- the memory 909 may mainly include a storage program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
- the memory 909 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- ROM Read-Only Memory
- PROM programmable read-only memory
- PROM erasable programmable read-only memory
- Erasable PROM Erasable PROM
- EPROM electrically erasable programmable read-only memory
- EEPROM electrically erasable programmable read-only memory
- flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
- the processor 910 may include one or more processing units; optionally, the processor 910 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 910.
- the radio frequency unit 901 is used for the second HARQ process corresponding to the second physical downlink shared channel PDSCH to be the same as the first HARQ process corresponding to the first PDSCH, and the transmission time of the second PDSCH is not earlier. In the case of the first time, the terminal receives the second PDSCH;
- the first PDSCH is the PDSCH scheduled by the network side device before scheduling the second PDSCH;
- the first time is related to first information, and the first information indicates whether the terminal feeds back the HARQ-ACK of the hybrid automatic repeat request of the first PDSCH.
- the radio frequency unit 901 is further configured to, if the second HARQ process corresponding to the second physical downlink shared channel PDSCH scheduled by the network side device is the same as the first HARQ process corresponding to the first PDSCH, the terminal does not The second PDSCH is received before the first time.
- the radio frequency unit 901 is further configured to receive the first PDSCH before receiving the second PDSCH.
- the first PDSCH is a group common PDSCH.
- the network side device determines the first time and does not earlier than the first time
- the terminal receives the second PDSCH at a time not earlier than the first time.
- the first PDSCH when it does not feed back HARQ-ACK, it can also determine the sending of the second PDSCH Time, that is, the embodiments of this application can be applied to the group common PDSCH for transmitting multicast/broadcast services or the PDSCH that does not feed back HARQ-ACK information, and it is guaranteed that the terminal has enough time to process the received PDSCH, which improves system communication. effectiveness.
- the embodiments of the present application further provide a readable storage medium, the readable storage medium may be non-volatile or volatile, and a program or an instruction is stored on the readable storage medium, and the program or instruction is stored in the readable storage medium.
- a readable storage medium may be non-volatile or volatile
- a program or an instruction is stored on the readable storage medium, and the program or instruction is stored in the readable storage medium.
- the processor is the processor in the terminal described in the foregoing embodiment.
- the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
- An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above PDSCH receiving method or PDSCH transmission
- the chip includes a processor and a communication interface
- the communication interface is coupled to the processor
- the processor is configured to run a program or an instruction to implement the above PDSCH receiving method or PDSCH transmission
- the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
- An embodiment of the present application further provides a computer program product, wherein the computer program product is stored in a non-transitory readable storage medium, and the computer program product is executed by at least one processor to implement the above PDSCH transmission method Or each process of the PDSCH receiving method embodiment, and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
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Abstract
本申请公开了一种PDSCH传输、接收方法、装置及通信设备,属于通信技术领域,本申请实施例的PDSCH传输方法包括:在网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,网络侧设备确定第一时间;其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH,所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK;所述网络侧设备在不早于所述第一时间的时刻,发送所述第二PDSCH。
Description
相关申请的交叉引用
本申请主张在2021年04月22日在中国提交的中国专利申请No.202110437444.1的优先权,其全部内容通过引用包含于此;同时,本申请主张在2022年03月30日在中国提交的中国专利申请No.202210334304.6的优先权,其全部内容通过引用包含于此。
本申请涉及通信技术领域,特别涉及一种PDSCH传输、接收方法、装置及通信设备。
相关技术中,由于用户设备(User Equipment,UE)处理物理下行共享信道(Physical Downlink Shared Channel,PDSCH)需要一定的时间,基站在调度PDSCH时需要满足一定的条件,当UE反馈PDSCH的混合自动重传请求确认(Hybrid automatic repeat request acknowledgement,HARQ-ACK)时,基站在期待的HARQ-ACK传输结束之前,不能调度相同进程的PDSCH。但是对于传输广播/多播(broadcast/multicast)业务的组公共PDSCH,其可以不反馈HARQ-ACK,若采用现有方案,则基站在调度与组公共PDSCH具有相同HARQ进程的PDSCH时,无法确定其调度时间。
发明内容
本申请实施例提供了一种PDSCH传输、接收方法、装置及通信设备,能够解决现有PDSCH调度方式不适用于传输多播/广播业务的组公共PDSCH的问题。
第一方面,提供了一种PDSCH传输方法,包括:
在网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,网络侧设备确定第一时间;其中,所述第一PDSCH为所述网络侧设备在调度所述 第二PDSCH之前调度的PDSCH,所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK;
所述网络侧设备在不早于所述第一时间的时刻,发送所述第二PDSCH。
第二方面,提供了一种PDSCH接收方法,包括:
在第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,且所述第二PDSCH的发送时间不早于第一时间的情况下,终端接收所述第二PDSCH;
其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH;
所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK。
第三方面,提供了一种PDSCH传输装置,包括:
第一确定模块,用于在网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,确定第一时间;其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH,所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK;
第一传输模块,用于在不早于所述第一时间的时刻,发送所述第二PDSCH。
第四方面,提供了一种PDSCH接收装置,包括:
第一接收模块,用于在第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,且所述第二PDSCH的发送时间不早于第一时间的情况下,终端接收所述第二PDSCH;
其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH;
所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK。
第五方面,提供了一种网络侧设备,该网络侧设备包括处理器、存储器及 存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种网络侧设备,包括处理器及通信接口,其中,所述处理器用于在网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,确定第一时间;其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH,所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK
所述通信接口用于在不早于所述第一时间的时刻,发送所述第二PDSCH。
第七方面,提供了一种终端,该终端包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第二方面所述的方法的步骤。
第八方面,提供了一种终端,包括处理器及通信接口,其中,所述通信接口用于在第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,且所述第二PDSCH的发送时间不早于第一时间的情况下,终端接收所述第二PDSCH;
其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH;
所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK。
第九方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第十方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法,或实现如第二方面所述的方法。
第十一方面,提供了一种计算机程序产品,所述计算机程序产品被存储在非瞬态的存储介质中,所述计算机程序产品被至少一个处理器执行以实现如第 一方面或第二方面所述的方法的步骤。
第十二方面,提供了一种通信设备,被配置为执行如第一方面或第二方面所述的方法的步骤。
在本申请实施例中,在网络侧设备调度的第二PDSCH对应的HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,确定第一时间,并在不早于第一时间的时刻,发送上述第二PDSCH,这样,在上述第一PDSCH不反馈HARQ-ACK时,也能确定第二PDSCH的发送时间,即本申请实施例能够适用于传输多播/广播业务的组公共PDSCH或者是不反馈HARQ-ACK信息的PDSCH,且保证能够保证终端有足够的时间处理接收到的PDSCH,提高了系统通信的有效性。
图1表示本申请实施例可应用的一种通信系统的结构图;
图2表示本申请实施例的PDSCH传输方法的流程示意图;
图3表示本申请实施例中PDSCH1与PDSCH2之间的位置示意图;
图4表示本申请实施例的PDSCH接收方法的流程示意图;
图5表示本申请实施例的PDSCH传输模块的示意图;
图6表示本申请实施例的网络侧设备的结构框图;
图7表示本申请实施例的PDSCH接收模块的示意图;
图8表示本申请实施例的通信设备的结构框图;
图9表示本申请实施例的终端的结构框图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类 似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,这些技术也可应用于NR系统应用以外的应用,如第6代(6
th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的结构图。无线通信系统包括终端11和网络侧设备12。其中,终端11也可以称作终端设备或者用户终端(User Equipment,UE),终端11可以是手机、平板电脑(Tablet Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)等终端侧设备,可穿戴式设备包括:智能手表、手环、耳机、眼镜等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网设备,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、 无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、无线局域网(Wireless Local Area Networks,WLAN)接入点、无线保真(Wireless Fidelity,WiFi)节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的PDSCH传输方法进行详细地说明。
如图2所示,本申请实施例提供了一种PDSCH传输方法,包括:
步骤201:在网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,网络侧设备确定第一时间;其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH,所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK。
本步骤中,在一个被调度的小区上(In a given scheduled cell),在网络侧设备调度的第二PDSCH对应的第二HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下(或者说HARQ process ID相同),网络侧设备确定第一时间。
可选地,所述第一PDSCH为组公共PDSCH。
步骤202:网络侧设备在不早于所述第一时间的时刻,发送所述第二PDSCH。
这里,在不早于该第一时间的时刻发送第二PDSCH(即第二PDSCH的起始位置不早于第一时间),以保证终端有足够的时间处理接收到的第一PDSCH。
本申请实施例中,在没有特殊传输要求的情况下,网络侧设备可以在不早于第一时间的任意时刻发送第二PDSCH。
本申请实施例的PDSCH传输方法,在网络侧设备调度的第二PDSCH对应的HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,确定第一时间,并在不早于第一时间的时刻,发送上述第二PDSCH,这样,在上述第一 PDSCH不反馈HARQ-ACK时,也能确定第二PDSCH的发送时间,即本申请实施例能够适用于传输多播/广播业务的组公共PDSCH或者是不反馈HARQ-ACK信息的PDSCH,且保证能够保证终端有足够的时间处理接收到的PDSCH,提高了系统通信的有效性。
可选地,所述网络侧设备确定第一时间包括:
所述网络侧设备根据第一信息的指示方式和第一信息的内容中的至少一项,确定所述第一时间;
其中,所述指示方式包括以下至少一项:
通过高层信令指示,如通过无线资源控制(Radio Resource Control,RRC)和媒体接入控制单元(Medium Access Control Control Element,MAC CE)中的至少一项指示,其中,通过RRC和MAC CE中的至少一项指示也可以描述为通过RRC和MAC CE中的至少一项配置;
通过下行控制信息(Downlink Control Information,DCI)指示。
确定第一时间的机制包括:
根据第一下行控制信息DCI中的反馈定时指示或预定义规则,确定第一时间。
这里,根据不同的指示方式或第一信息不同的内容,采用不同的机制确定第一时间,以保证终端在接收第二PDSCH之前有足够的时间处理已接收到的第一PDSCH。
作为第一种可选地实现方,所述网络侧设备根据第一信息的指示方式和第一信息的内容中的至少一项,确定所述第一时间,包括:
在所述第一信息是通过高层信令,如RRC指示的,且所述第一信息指示终端不反馈所述第一PDSCH的HARQ-ACK的情况下,所述网络侧设备根据第一下行控制信息DCI中的反馈定时指示或预定义规则,确定所述第一时间;
其中,所述第一DCI为调度所述第一PDSCH的DCI。
作为第二种可选地实现方式,所述网络侧设备根据第一信息的指示方式和第一信息的内容中的至少一项,确定所述第一时间,包括:
在所述第一信息是通过DCI指示的情况下,所述网络侧设备根据预定义规 则,确定所述第一时间,或者,根据所述第一信息的内容,确定所述第一时间。
具体地,上述第一种可选地实现方式中或第二种可选地实现方式中,根据所述第一信息的内容,确定所述第一时间,包括:
在所述第一信息指示所述终端反馈所述第一PDSCH的HARQ-ACK的情况下,根据所述第一PDSCH的HARQ-ACK的结束位置(the end of the transmission of HARQ-ACK for the first PDSCH,or the end of the transmission of HARQ-ACK for that HARQ process),确定所述第一时间,即将第一PDSCH的HARQ-ACK的结束位置作为所述第一时间;
或者,在所述第一信息指示终端不反馈所述第一PDSCH的HARQ-ACK的情况下,根据第一下行控制信息DCI中的反馈定时指示或预定义规则,确定所述第一时间;
其中,所述第一DCI为调度所述第一PDSCH的DCI。另外,本申请实施例中一个PDSCH对应一个HARQ process。
上述第一种可选地实现方式中或第二种可选地实现方式中,所述根据第一下行控制信息DCI中的反馈定时指示,确定所述第一时间,包括:
根据第一DCI中的反馈定时指示,确定反馈HARQ-ACK的时间单元;
将反馈HARQ-ACK的时间单元的目标位置,确定为所述第一时间。
其中,上述时间单元可以是时隙或子时隙或符号;
进一步地,所述目标位置包括以下其中一项:
结束位置;
起始位置;
预定义符号的起始/结束位置;
传输HARQ-ACK的PUCCH或PUSCH的结束位置。
这里,传输HARQ-ACK的PUCCH或PUSCH可以是假设该第一PDSCH需要反馈HARQ-ACK时所确定的PUCCH或PUSCH资源,实际该第一PDSCH可以不发送HARQ-ACK(例如由于第一PDSCH不需要反馈HARQ-ACK而不需要发送HARQ-ACK PUCCH或者由于其他原因导致PUCCH或PUSCH信道无法传输),或者,上述传输HARQ-ACK的PUCCH或PUSCH可以是根据该时 间单元内其他需要反馈HARQ-ACK的PDSCH的HARQ-ACK反馈和/或其他类型上行控制信息(Uplink Control Information UCI)所确定的PUCCH或PUSCH资源,其中,其他类型UCI可以是信道状态信息(Channel State Information,CSI)或调度请求(Scheduling Request,SR)。
上述第一种可选地实现方式中或第二种可选地实现方式中,所述预定义规则包括:
根据位于所述第一PDSCH的结束位置之后T1时间的位置,确定所述第一时间。
进一步地,所述T1时间是预定义的,或者,所述T1时间是根据PDSCH的处理时间确定的,或者,所述T1时间是根据PDSCH的子载波间隔确定的,或者,所述T1时间与所述终端能力有关,或者,所述T1时间是由所述终端上报给所述网络侧设备的,或者,所述T1时间是根据最大重传次数对应的结束时间。
这里,T1时间的单位可以是符号、时间单元或者绝对时间长度。
例如,T1对应的时长为PDSCH的处理时间的α倍,0<α≤1。
又例如,T1=N1,N1与PDSCH和/或调度PDSCH的PDCCH的子载波间隔有关,具体的,μ=0时,N1=13;μ=1时,N1=13;μ=2时,N1=20;μ=0时,N1=24。其中μ用于表示PDSCH或调度PDSCH的PDCCH的子载波间隔或者表示PDSCH的子载波间隔和调度PDSCH的PDCCH的子载波间隔中的最小子载波间隔,其中子载波间隔表示为15*2
μkHz。
下面结合具体实施例对本申请的PDSCH传输方法进行说明。
实施例一:
网络侧设备通过高层配置组公共PDSCH(可选的,这里的组公共PDSCH不是系统信息RNTI(System Information RNTI,SI-RNTI)加扰的PDSCH,主要是指传输多播/广播业务的PDSCH,例如通过群组RNTI(Group RNTI,G-RNTI)加扰的PDSCH或通过群组配置调度RNTI(Group Configured Scheduling RNTI,G-CS-RNTI)加扰的PDSCH)是否反馈HARQ-ACK。例如,对于UE1来说,网络侧设备配置其不反馈组公共PDSCH的HARQ-ACK。
在某个被调度的小区上,网络侧设备调度PDSCH1,其结束位置为符号i,其中PDSCH1的HARQ进程标识(HARQ process ID)为x,在PDSCH1之后,基站调度PDSCH2,PDSCH2的HARQ process ID也是x,其中x为非整数,x的取值范围为0至Y,其中Y为被调度的小区上PDSCH支持的最大HARQ process数目,例如,x为0,1,2,….,15,则PDSCH2需要满足如下至少一个条件:
条件1:假设调度PDSCH1的DCI为DCI 1,且DCI 1中包含PDSCH到HARQ-ACK反馈的定时指示(如指示域PDSCH-to-HARQ_feedback timing indicator),DCI 1中的定时指示指为k1,则UE根据k1确定PDSCH1反馈HARQ-ACK对应的时间单元,并保证PDSCH2与确定的时间单元满足以下其中一项:
(a)PDSCH2的起始位置不早于确定的时间单元的起始位置、结束位置或预定义的位置(如时间单元的中间位置);
(b)UE按照反馈PDSCH1的HARQ-ACK,确定反馈该HARQ-ACK对应的传输资源,PDSCH2的起始位置不早于PDSCH1对应的HARQ-ACK传输资源的结束位置;
(c)如果在上述确定的时间单元内,UE需要反馈其他PDSCH的HARQ-ACK,则PDSCH2的起始位置不早于其他PDSCH对应的HARQ-ACK传输资源的结束位置;
另外,当DCI 1中不包含上述PDSCH到HARQ-ACK反馈的定时指示时,还可以根据RRC配置的反馈定时指示,确定PDSCH1反馈HARQ-ACK对应的时间单元,例如通过dl-DataToUL-ACK、dl-DataToUL-ACK-r16和dl-DataToUL-ACKForDCIFormat1_2中至少一个参数配置的值确定反馈定时指示。
条件2:PDSCH2的起始位置不能早于根据预定义规则确定的第一时间;
其中,如图3所示,预定义规则为根据位于所述第一PDSCH的结束位置之后T1时间的位置,确定所述第一时间,即T1的结束位置为所述第一时间。
具体的,T1包含预设数量个符号,不同子载波间隔和/或不同PDSCH处理 能力下,T1包含的符号数不同;或者,所述TI为预定义的时间,例如,为PDSCH的处理时间。
实施例二:
网络侧设备通过DCI指示组公共PDSCH(可选的,这里的组公共PDSCH不是SI-RNTI加扰的PDSCH,主要是指传输多播/广播业务的PDSCH)是否反馈HARQ-ACK。例如,网络侧设备通过调度组公共PDSCH的DCI指示UE是否反馈该组公共PDSCH的HARQ-ACK,例如通过在调度组公共PDSCH的DCI中使用特定域直接指示或者通过其他方式隐式指示,这里不作限定。
在某个被调度的小区上,网络侧设备调度PDSCH1,其结束位置为符号i,其中PDSCH1的HARQ process ID为0,在PDSCH1之后,网络侧设备调度PDSCH2,PDSCH2的HARQ process ID也是0,则PDSCH2需要满足如下至少一个条件:
条件1:根据DCI是否指示UE反馈第一PDSCH的HARQ-ACK信息确定第一时间,PDSCH2的起始位置不早于该第一时间;
其中,如果DCI中指示UE反馈第一PDSCH的HARQ-ACK,则第一时间为第一PDSCH HARQ-ACK传输的结束位置,即PDSCH2的起始位置不早于PDSCH1的HARQ-ACK传输的结束位置(the end of the transmission of HARQ-ACK for PDSCH1,or the end of the transmission of HARQ-ACK for that HARQ process);
如果DCI中指示UE不反馈第一PDSCH的HARQ-ACK,则根据该DCI终端的反馈定时指示或上述预定义规则,确定第一时间。
条件2:PDSCH2的起始位置不早于根据预定义规则确定的第一时间。
这里,不管DCI是否指示UE反馈第一PDSCH的HARQ-ACK,只要是组公共PDSCH,或者,不管是DCI指示UE是否反馈第一PDSCH的HARQ-ACK,还是高层信令指示是否反馈第一PDSCH的HARQ-ACK,只要是不反馈HARQ-ACK的第一PDSCH,则UE按照预定义规则确定第一时间。
需要说明的是,第一PDSCH的HARQ-ACK包括确认(Acknowledgement,ACK)和非确认(Non Acknowledgement,NACK)中的至少一项。其中,本申 请实施例也适用于配置了只有NACK(NACK only)的反馈模式的PDSCH,对于配置了NACK only反馈模式的PDSCH,UE只有在未能成功解码PDSCH的时候反馈NACK,否则UE不需要反馈HARQ信息。本申请实施例中的第一时间的定义同样适用于此模式下的PDSCH。即基站发送第一PDSCH,如果接收到NACK,则按照NACK的传输结束位置确定第一时间,如果未接收到NACK,则按照上述预定义方式或者DCI中的定时指示确定第一时间。
另外,本申请实施例也适用于配置了NACK skipping或ACK skipping的反馈模式的PDSCH,其中,对于配置了NACK skipping反馈模式的PDSCH,UE在未能成功解码PDSCH的时候不需要反馈NACK,或者,对于配置了ACK skipping反馈模式的PDSCH,在成功解码PDSCH的时候不需要反馈ACK。本申请实施例中的第一时间的定义同样适用于此模式下的PDSCH。即基站发送第一PDSCH,如果接收到ACK(对于NACK skipping模式)/NACK(对于ACK skipping模式),则按照ACK/NACK的传输结束位置确定第一时间,如果未接收到ACK/NACK,则按照上述预定义方式或者DCI中的定时指示确定第一时间。
本申请实施例的PDSCH传输方法,网络侧设备调度的第二PDSCH对应的HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,确定第一时间,并在不早于第一时间的时刻,发送上述第二PDSCH,这样,在上述第一PDSCH不反馈HARQ-ACK时,也能确定第二PDSCH的发送时间,即本申请实施例能够适用于传输多播/广播业务的组公共PDSCH或者是不反馈HARQ-ACK信息的PDSCH,且保证能够保证终端有足够的时间处理接收到的PDSCH,提高了系统通信的有效性。
如图4所示,本申请实施例还提供了一种PDSCH接收方法,包括:
步骤401:在第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,且所述第二PDSCH的发送时间不早于第一时间的情况下,终端接收所述第二PDSCH;
其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH;
所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一 PDSCH的混合自动重传请求确认HARQ-ACK。
可选地,所述第一PDSCH为组公共PDSCH。
本申请实施例中,在网络侧设备调度的第二PDSCH对应的HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,网络侧设备确定第一时间,并在不早于第一时间的时刻,发送上述第二PDSCH,则终端在不早于第一时间的时刻接收所述第二PDSCH,这样,在上述第一PDSCH不反馈HARQ-ACK时,也能确定第二PDSCH的发送时间,即本申请实施例能够适用于传输多播/广播业务的组公共PDSCH或者是不反馈HARQ-ACK信息的PDSCH,且保证能够保证终端有足够的时间处理接收到的PDSCH,提高了系统通信的有效性。
可选地,本申请实施例的方法,还包括:
若网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,则终端不期望在所述第一时间之前接收所述PDSCH(the UE is not expected to receive another PDSCH for a given HARQ process starting earlier than T1)。
也就是说,若网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,终端确定调度错误。
可选地,所述接收所述第二PDSCH之前,还包括:
接收所述第一PDSCH。
这里,在接收第一PDSCH之后,在所述第二PDSCH的发送时间不早于第一时间的情况下,接收所述第二PDSCH,以保证终端有足够的时间处理接收到的第一PDSCH。
本申请实施例中,在网络侧设备调度的第二PDSCH对应的HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,网络侧设备确定第一时间,并在不早于第一时间的时刻,发送上述第二PDSCH,则终端在不早于第一时间的时刻接收所述第二PDSCH,这样,在上述第一PDSCH不反馈HARQ-ACK时,也能确定第二PDSCH的发送时间,即本申请实施例能够适用于传输多播/广播业务的组公共PDSCH或者是不反馈HARQ-ACK信息的PDSCH,且保证 能够保证终端有足够的时间处理接收到的PDSCH,提高了系统通信的有效性。
需要说明的是,本申请实施例提供的PDSCH传输方法,执行主体可以为PDSCH传输装置,或者,该PDSCH传输装置中的用于执行PDSCH传输方法的控制模块。本申请实施例中以PDSCH传输装置执行PDSCH传输方法为例,说明本申请实施例提供的PDSCH传输装置。
如图5所示,本申请实施例还提供了一种PDSCH传输装置500,包括:
第一确定模块501,用于在网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,确定第一时间;其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH,所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK;
第一传输模块502,用于在不早于所述第一时间的时刻,发送所述第二PDSCH。
可选地,所述第一确定模块用于根据第一信息的指示方式和第一信息的内容中的至少一项,确定所述第一时间;
其中,所述指示方式包括以下至少一项:
通过高层信令指示;
通过下行控制信息DCI指示。
可选地,所述第一确定模块用于在所述第一信息是通过高层信令指示的,且所述第一信息指示终端不反馈所述第一PDSCH的HARQ-ACK的情况下,所述网络侧设备根据第一下行控制信息DCI中的反馈定时指示或预定义规则,确定所述第一时间;
其中,所述第一DCI为调度所述第一PDSCH的DCI。
可选地,所述第一确定模块用于在所述第一信息是通过DCI指示的情况下,所述网络侧设备根据预定义规则,确定所述第一时间,或者,根据所述第一信息的内容,确定所述第一时间。
可选地,所述第一确定模块用于在所述第一信息指示所述终端反馈所述第 一PDSCH的HARQ-ACK的情况下,根据所述第一PDSCH的HARQ-ACK的结束位置,确定所述第一时间;
或者,在所述第一信息指示终端不反馈所述第一PDSCH的HARQ-ACK的情况下,根据第一下行控制信息DCI中的反馈定时指示或预定义规则,确定所述第一时间;
其中,所述第一DCI为调度所述第一PDSCH的DCI。
可选地,所述第一确定模块包括:
第一确定子模块,用于根据第一DCI中的反馈定时指示,确定反馈HARQ-ACK的时间单元;
第二确定子模块,用于将反馈HARQ-ACK的时间单元的目标位置,确定为所述第一时间。
可选地,所述目标位置包括以下其中一项:
结束位置;
起始位置;
预定义符号的起始/结束位置;
传输HARQ-ACK的PUCCH或PUSCH的结束位置。
可选地,所述预定义规则包括:
根据位于所述第一PDSCH的结束位置之后T1时间的位置,确定所述第一时间。
可选地,所述T1时间是预定义的,或者,所述T1时间是根据PDSCH的处理时间确定的,或者,所述T1时间是根据PDSCH的子载波间隔确定的,或者,所述T1时间与所述终端能力有关,或者,所述T1时间是由所述终端上报给所述网络侧设备的,或者,所述T1时间是根据最大重传次数对应的结束时间。
本申请实施例的PDSCH传输装置,在网络侧设备调度的第二PDSCH对应的HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,确定第一时间,并在不早于第一时间的时刻,发送上述第二PDSCH,这样,在上述第一PDSCH不反馈HARQ-ACK时,也能确定第二PDSCH的发送时间,即本申请实施例能够适用于传输多播/广播业务的组公共PDSCH或者是不反馈 HARQ-ACK信息的PDSCH,且保证能够保证终端有足够的时间处理接收到的PDSCH,提高了系统通信的有效性。
本申请实施例提供的装置能够实现图2方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供了一种网络侧设备,包括处理器和通信接口,处理器用于在网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,确定第一时间;其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH,所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK;通信接口用于在不早于所述第一时间的时刻,发送所述第二PDSCH。该网络侧设备实施例是与上述网络侧设备方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中,且能达到相同的技术效果。
具体地,本申请实施例还提供了一种网络侧设备。如图6所示,该网络设备600包括:天线601、射频装置602、基带装置603。天线601与射频装置602连接。在上行方向上,射频装置602通过天线601接收信息,将接收的信息发送给基带装置603进行处理。在下行方向上,基带装置603对要发送的信息进行处理,并发送给射频装置602,射频装置602对收到的信息进行处理后经过天线601发送出去。
上述频带处理装置可以位于基带装置603中,以上实施例中网络侧设备执行的方法可以在基带装置603中实现,该基带装置603包括处理器604和存储器605。
基带装置603例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图6所示,其中一个芯片例如为处理器604,与存储器605连接,以调用存储器605中的程序,执行以上方法实施例中所示的网络侧设备操作。
该基带装置603还可以包括网络接口606,用于与射频装置602交互信息,该接口例如为通用公共无线接口(Common Public Radio Interface,CPRI)。
具体地,本申请实施例的网络侧设备还包括:存储在存储器605上并可在 处理器604上运行的指令或程序,处理器604调用存储器605中的指令或程序执行图5所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
如图7所示,本申请实施例还提供了一种PDSCH接收装置700,包括:
第一接收模块701,用于在第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,且所述第二PDSCH的发送时间不早于第一时间的情况下,终端接收所述第二PDSCH;
其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH;
所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK。
可选地,本申请实施例的装置,还包括:
第二确定模块,用于确定第一时间。
这里,可通过网络指示或预定义规则,确定第一时间。
可选地,本申请实施例的装置,还包括:
第一处理模块,用于若网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,则不期望在所述第一时间之前接收所述第二PDSCH(the UE is not expected to receive another PDSCH for a given HARQ process starting earlier than T1)。
可选地,本申请实施例的装置,还包括:
第二接收模块,用于在第一接收模块接收所述第二PDSCH之前,接收所述第一PDSCH。
可选地,所述第一PDSCH为组公共PDSCH。
本申请实施例的装置,在网络侧设备调度的第二PDSCH对应的HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,网络侧设备确定第一时间,并在不早于第一时间的时刻,发送上述第二PDSCH,则终端在不早于第一时间的时刻接收所述第二PDSCH,这样,在上述第一PDSCH不反馈HARQ-ACK时,也能确定第二PDSCH的发送时间,即本申请实施例能够适用 于传输多播/广播业务的组公共PDSCH或者是不反馈HARQ-ACK信息的PDSCH,且保证能够保证终端有足够的时间处理接收到的PDSCH,提高了系统通信的有效性。
本申请实施例中的PDSCH接收装置可以是装置,具有操作系统的装置或电子设备,也可以是终端中的部件、集成电路、或芯片。该装置或电子设备可以是移动终端,也可以为非移动终端。示例性的,移动终端可以包括但不限于上述所列举的终端11的类型,非移动终端可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(personal computer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
本申请实施例提供的装置能够实现图4方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,如图8所示,本申请实施例还提供一种通信设备800,包括处理器801,存储器802,存储在存储器802上并可在所述处理器801上运行的程序或指令,例如,该通信设备800为终端时,该程序或指令被处理器801执行时实现上述应用于终端的PDSCH接收方法实施例的各个过程,且能达到相同的技术效果。该通信设备800为网络侧设备时,该程序或指令被处理器801执行时实现上述应用于网络侧设备的PDSCH传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种终端,包括处理器和通信接口,通信接口用于:在第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,且所述第二PDSCH的发送时间不早于第一时间的情况下,终端接收所述第二PDSCH;
其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH;
所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK。
该终端实施例是与上述终端侧方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。 具体地,图9为实现本申请实施例的一种终端的硬件结构示意图,该终端900包括但不限于:射频单元901、网络模块902、音频输出单元903、输入单元904、传感器905、显示单元906、用户输入单元907、接口单元908、存储器909、以及处理器910等中的至少部分部件。
本领域技术人员可以理解,终端900还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器910逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图9中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元904可以包括图形处理器(Graphics Processing Unit,GPU)9041和麦克风9042,图形处理器9041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元906可包括显示面板9061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板9061。用户输入单元907包括触控面板9071以及其他输入设备9072。触控面板9071,也称为触摸屏。触控面板9071可包括触摸检测装置和触摸控制器两个部分。其他输入设备9072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元901将来自网络侧设备的下行数据接收后,给处理器910处理;另外,将上行的数据发送给网络侧设备。通常,射频单元901包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器909可用于存储软件程序或指令以及各种数据。存储器909可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器909可以包括高速随机存取存储器,还可以包括非易失性存储器,其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器 (Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器910可包括一个或多个处理单元;可选的,处理器910可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序或指令等,调制解调处理器主要处理无线通信,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器910中。
所述射频单元901,用于在第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,且所述第二PDSCH的发送时间不早于第一时间的情况下,终端接收所述第二PDSCH;
其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH;
所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK。
所述射频单元901,还用于若网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,则终端不期望在所述第一时间之前接收所述第二PDSCH。
所述射频单元901,还用于在接收所述第二PDSCH之前,接收所述第一PDSCH。
可选地,所述第一PDSCH为组公共PDSCH。
本申请实施例的终端,在网络侧设备调度的第二PDSCH对应的HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,网络侧设备确定第一时间,并在不早于第一时间的时刻,发送上述第二PDSCH,则终端在不早于第一时间的时刻接收所述第二PDSCH,这样,在上述第一PDSCH不反馈HARQ-ACK时,也能确定第二PDSCH的发送时间,即本申请实施例能够适用于传输多播/广播业务的组公共PDSCH或者是不反馈HARQ-ACK信息的PDSCH,且保证能够保证终端有足够的时间处理接收到的PDSCH,提高了系统通信的有效性。
本申请实施例还提供一种可读存储介质,所述可读存储介质可以是非易失的,也可以是易失的,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述PDSCH传输方法或PDSCH接收方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述PDSCH接收方法或PDSCH传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序产品,其中,所述计算机程序产品被存储在非瞬态的可读存储介质中,所述计算机程序产品被至少一个处理器执行以实现上述PDSCH传输方法或PDSCH接收方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实 施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。
Claims (35)
- 一种PDSCH传输方法,包括:在网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,网络侧设备确定第一时间;其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH,所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK;所述网络侧设备在不早于所述第一时间的时刻,发送所述第二PDSCH。
- 根据权利要求1所述的方法,其中,所述网络侧设备确定第一时间包括:所述网络侧设备根据第一信息的指示方式和第一信息的内容中的至少一项,确定所述第一时间;其中,所述指示方式包括以下至少一项:通过高层信令指示;通过下行控制信息DCI指示。
- 根据权利要求2所述的方法,其中,所述网络侧设备根据第一信息的指示方式和第一信息的内容中的至少一项,确定所述第一时间,包括:在所述第一信息是通过高层信令指示的,且所述第一信息指示终端不反馈所述第一PDSCH的HARQ-ACK的情况下,所述网络侧设备根据第一下行控制信息DCI中的反馈定时指示或预定义规则,确定所述第一时间;其中,所述第一DCI为调度所述第一PDSCH的DCI。
- 根据权利要求2所述的方法,其中,所述网络侧设备根据第一信息的指示方式和第一信息的内容中的至少一项,确定所述第一时间,包括:在所述第一信息是通过DCI指示的情况下,所述网络侧设备根据预定义规则,确定所述第一时间,或者,根据所述第一信息的内容,确定所述第一 时间。
- 根据权利要求1或4所述的方法,其中,根据所述第一信息的内容,确定所述第一时间,包括:在所述第一信息指示所述终端反馈所述第一PDSCH的HARQ-ACK的情况下,根据所述第一PDSCH的HARQ-ACK的结束位置,确定所述第一时间;或者,在所述第一信息指示终端不反馈所述第一PDSCH的HARQ-ACK的情况下,根据第一下行控制信息DCI中的反馈定时指示或预定义规则,确定所述第一时间;其中,所述第一DCI为调度所述第一PDSCH的DCI。
- 根据权利要求3或5所述的方法,其中,所述根据第一下行控制信息DCI中的反馈定时指示,确定所述第一时间,包括:根据第一DCI中的反馈定时指示,确定反馈HARQ-ACK的时间单元;将反馈HARQ-ACK的时间单元的目标位置,确定为所述第一时间。
- 根据权利要求6所述的方法,其中,所述目标位置包括以下其中一项:结束位置;起始位置;预定义符号的起始/结束位置;传输HARQ-ACK的PUCCH或PUSCH的结束位置。
- 根据权利要求3至5任一项所述的方法,其中,所述预定义规则包括:根据位于所述第一PDSCH的结束位置之后T1时间的位置,确定所述第一时间。
- 根据权利要求8所述的方法,其中,所述T1时间是预定义的,或者,所述T1时间是根据PDSCH的处理时间确定的,或者,所述T1时间是根据PDSCH的子载波间隔确定的,或者,所述T1时间与所述终端能力有关,或者,所述T1时间是由所述终端上报给所述网络侧设备的,或者,所述T1时间是根据最大重传次数对应的结束时间。
- 一种PDSCH接收方法,包括:在第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,且所述第二PDSCH的发送时间不早于第一时间的情况下,终端接收所述第二PDSCH;其中,所述第一PDSCH为网络侧设备在调度所述第二PDSCH之前调度的PDSCH;所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK。
- 根据权利要求10所述的方法,其中,所述第一时间根据所述第一PDSCH的HARQ-ACK的结束位置确定,所述第一信息指示所述终端反馈所述第一PDSCH的HARQ-ACK;或者,所述第一时间根据预定义规则确定,所述第一信息指示终端不反馈所述第一PDSCH的HARQ-ACK。
- 根据权利要求11所述的方法,其中,所述预定义规则包括:根据位于所述第一PDSCH的结束位置之后T1时间的位置,确定所述第一时间。
- 根据权利要求12所述的方法,其中,所述T1时间是预定义的,或者,所述T1时间是根据PDSCH的处理时间确定的,或者,所述T1时间是根据PDSCH的子载波间隔确定的,或者,所述T1时间与所述终端能力有关,或者,所述T1时间是由所述终端上报给所述网络侧设备的。
- 根据权利要求10所述的方法,其中,还包括:若网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,则终端不期望在所述第一时间之前接收所述第二PDSCH。
- 根据权利要求10所述的方法,其中,所述接收所述第二PDSCH之前,还包括:接收所述第一PDSCH。
- 根据权利要求10所述的方法,其中,所述第一PDSCH为组公共 PDSCH。
- 一种PDSCH传输装置,包括:第一确定模块,用于在网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同的情况下,确定第一时间;其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH,所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK;第一传输模块,用于在不早于所述第一时间的时刻,发送所述第二PDSCH。
- 根据权利要求17所述的装置,其中,所述第一确定模块用于根据第一信息的指示方式和第一信息的内容中的至少一项,确定所述第一时间;其中,所述指示方式包括以下至少一项:通过高层信令指示;通过下行控制信息DCI指示。
- 根据权利要求18所述的装置,其中,所述第一确定模块用于在所述第一信息是通过高层信令指示的,且所述第一信息指示终端不反馈所述第一PDSCH的HARQ-ACK的情况下,所述网络侧设备根据第一下行控制信息DCI中的反馈定时指示或预定义规则,确定所述第一时间;其中,所述第一DCI为调度所述第一PDSCH的DCI。
- 根据权利要求18所述的装置,其中,所述第一确定模块用于在所述第一信息是通过DCI指示的情况下,所述网络侧设备根据预定义规则,确定所述第一时间,或者,根据所述第一信息的内容,确定所述第一时间。
- 根据权利要求17或20所述的装置,其中,所述第一确定模块用于在所述第一信息指示所述终端反馈所述第一PDSCH的HARQ-ACK的情况下,根据所述第一PDSCH的HARQ-ACK的结束位置,确定所述第一时间;或者,在所述第一信息指示终端不反馈所述第一PDSCH的HARQ-ACK 的情况下,根据第一下行控制信息DCI中的反馈定时指示或预定义规则,确定所述第一时间;其中,所述第一DCI为调度所述第一PDSCH的DCI。
- 根据权利要求19或21所述的装置,其中,所述第一确定模块包括:第一确定子模块,用于根据第一DCI中的反馈定时指示,确定反馈HARQ-ACK的时间单元;第二确定子模块,用于将反馈HARQ-ACK的时间单元的目标位置,确定为所述第一时间。
- 根据权利要求22所述的装置,其中,所述目标位置包括以下其中一项:结束位置;起始位置;预定义符号的起始/结束位置;传输HARQ-ACK的PUCCH或PUSCH的结束位置。
- 根据权利要求19至21任一项所述的装置,其中,所述预定义规则包括:根据位于所述第一PDSCH的结束位置之后T1时间的位置,确定所述第一时间。
- 根据权利要求24所述的装置,其中,所述T1时间是预定义的,或者,所述T1时间是根据PDSCH的处理时间确定的,或者,所述T1时间是根据PDSCH的子载波间隔确定的,或者,所述T1时间与所述终端能力有关,或者,所述T1时间是由所述终端上报给所述网络侧设备的,或者,所述T1时间是根据最大重传次数对应的结束时间。
- 一种PDSCH接收装置,包括:第一接收模块,用于在第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,且所述第二PDSCH的发送时间不早于第一时间的情况下,终端接收所述第二 PDSCH;其中,所述第一PDSCH为所述网络侧设备在调度所述第二PDSCH之前调度的PDSCH;所述第一时间与第一信息相关,所述第一信息指示终端是否反馈所述第一PDSCH的混合自动重传请求确认HARQ-ACK。
- 根据权利要求26所述的装置,其中,还包括:第一处理模块,用于若网络侧设备调度的第二物理下行共享信道PDSCH对应的第二混合自动重传请求HARQ进程与第一PDSCH对应的第一HARQ进程相同,则不期望在所述第一时间之前接收所述第二PDSCH。
- 根据权利要求26所述的装置,其中,还包括:第二接收模块,用于在第一接收模块接收所述第二PDSCH之前,接收所述第一PDSCH。
- 根据权利要求26所述的装置,其中,所述第一PDSCH为组公共PDSCH。
- 一种网络侧设备,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求1至9任一项所述的PDSCH传输方法的步骤。
- 一种终端,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求10至16任一项所述的PDSCH接收方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,其中,所述程序或指令被处理器执行时实现如权利要求1至9任一项所述的PDSCH传输方法的步骤,或者,实现如权利要求10至16任一项所述的PDSCH接收方法的步骤。
- 一种芯片,所述芯片包括处理器和通信接口,其中,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如权利要求1至9任一项所述的PDSCH传输方法的步骤,或者,实现如权利要求10至16任一项所述的PDSCH接收方法的步骤。
- 一种计算机程序产品,所述计算机程序产品被存储在非瞬态的存储介质中,其中,所述计算机程序产品被至少一个处理器执行以实现如权利要求1至9任一项所述的PDSCH传输方法的步骤,或者,实现如权利要求10至16任一项所述的PDSCH接收方法的步骤。
- 一种通信设备,被配置为执行如权利要求1至9任一项所述的PDSCH传输方法的步骤,或者,执行如权利要求10至16任一项所述的PDSCH接收方法的步骤。
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