WO2021218907A1 - Information acquisition method, information determination method, apparatus, and related device - Google Patents

Information acquisition method, information determination method, apparatus, and related device Download PDF

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Publication number
WO2021218907A1
WO2021218907A1 PCT/CN2021/089869 CN2021089869W WO2021218907A1 WO 2021218907 A1 WO2021218907 A1 WO 2021218907A1 CN 2021089869 W CN2021089869 W CN 2021089869W WO 2021218907 A1 WO2021218907 A1 WO 2021218907A1
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WO
WIPO (PCT)
Prior art keywords
harq
ack
related information
pdsch
multicast
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PCT/CN2021/089869
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French (fr)
Chinese (zh)
Inventor
李娜
潘学明
沈晓冬
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维沃移动通信有限公司
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Publication of WO2021218907A1 publication Critical patent/WO2021218907A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1861Physical mapping arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK

Definitions

  • This application belongs to the field of communication technology, and in particular relates to an information acquisition method, information determination method, device, and related equipment.
  • Some communication systems support multicast services, such as Multimedia Broadcast Multicast Service (MBMS).
  • MBMS Multimedia Broadcast Multicast Service
  • the multicast service is mainly scheduled through multicast Downlink Control Information (DCI), such as the physical downlink shared channel (PDSCH) scheduled by the multicast DCI.
  • DCI Downlink Control Information
  • PDSCH physical downlink shared channel
  • the network side does not send information related to the hybrid automatic repeat request (Hybrid Automatic Repeat request Acknowledgement, HARQ-ACK) of the multicast service to the terminal, so that the terminal cannot obtain the HARQ-ACK related information.
  • HARQ-ACK Hybrid Automatic Repeat request Acknowledgement
  • the embodiments of the present application provide an information acquisition method, information determination method, device, and related equipment, which can solve the problem that the terminal cannot obtain HARQ-ACK related information.
  • an embodiment of the present application provides an information acquisition method, which is applied to a terminal, and includes:
  • the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, wherein the HARQ-ACK related information includes at least one of the following:
  • the first HARQ-ACK related information included in the unicast DCI detected by the terminal
  • the second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
  • the embodiments of the present application provide an information determination method, which is applied to network equipment, including:
  • the HARQ-ACK related information is used for HARQ-ACK feedback of the terminal's multicast PDSCH, wherein the HARQ-ACK related information includes at least one of the following:
  • the first HARQ-ACK related information included in the unicast DCI sent to the terminal
  • the second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
  • an information acquisition device including:
  • the obtaining module is configured to obtain HARQ-ACK related information, the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, wherein the HARQ-ACK related information includes at least one of the following:
  • the first HARQ-ACK related information included in the unicast DCI detected by the terminal
  • the second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
  • an information determination device including:
  • the determining module is configured to determine HARQ-ACK related information, the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, wherein the HARQ-ACK related information includes at least one of the following:
  • the first HARQ-ACK related information included in the unicast DCI sent to the terminal
  • the second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
  • an embodiment of the present application provides a terminal, including a memory, a processor, and a program or instruction stored on the memory and capable of running on the processor, and the program or instruction is executed by the processor.
  • the steps in the information acquisition method provided in the embodiments of the present application are implemented during execution.
  • an embodiment of the present application provides a network device, including: a memory, a processor, and a program or instruction stored on the memory and running on the processor, and the program or instruction is processed by the processor.
  • the steps in the information determination method provided in the embodiments of the present application are implemented when the device is executed.
  • an embodiment of the present application provides a readable storage medium with a program or instruction stored on the readable storage medium.
  • the program or instruction is executed by a processor, the information acquisition method provided by the embodiment of the present application is implemented
  • the program or instruction is executed by a processor, the steps in the information determination method provided in the embodiments of the present application are implemented.
  • an embodiment of the present application provides a chip.
  • the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the embodiment of the present application.
  • HARQ-ACK related information is obtained, and the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, where the HARQ-ACK related information includes at least one of the following: The first HARQ-ACK related information included in the unicast DCI detected by the terminal; the second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
  • the terminal can obtain the aforementioned HARQ-ACK related information. And it can also enable the terminal to support the HARQ-ACK feedback of the multicast service, thereby improving the reliability of the multicast service transmission.
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present application
  • FIG. 2 is a flowchart of an information acquisition method provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of an information determination method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of DCI scheduling provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another DCI scheduling provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another DCI scheduling provided by an embodiment of the present application.
  • FIG. 7 is a structural diagram of an information acquisition device provided by an embodiment of the present application.
  • FIG. 8 is a structural diagram of another information acquisition device provided by an embodiment of the present application.
  • FIG. 9 is a structural diagram of an information determination device provided by an embodiment of the present application.
  • FIG. 10 is a structural diagram of an information determining device provided by an embodiment of the present application.
  • FIG. 11 is a structural diagram of a terminal provided by an embodiment of the present application.
  • Fig. 12 is a structural diagram of a network device provided by an embodiment of the present application.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • the uplink resource determination method, indication method, terminal, and network device provided in the embodiments of the present invention can be applied to a wireless communication system.
  • the wireless communication system can be a New Radio (NR) system, or other systems, such as: Evolved Long Term Evolution (eLTE) system or Long Term Evolution (LTE) system, or subsequent evolution Communication system, etc. Further, it can be applied to the unlicensed band (Unlicensed Band) in the above-mentioned wireless communication system.
  • NR New Radio
  • eLTE Evolved Long Term Evolution
  • LTE Long Term Evolution
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present invention. As shown in FIG. 1, it includes a terminal 11 and a network device 12.
  • the terminal 11 may be a User Equipment (UE). ) Or other terminal side devices, such as: mobile phones, tablet computers (Tablet Personal Computer), laptop computers (Laptop Computer), personal digital assistants (personal digital assistant, PDA), mobile Internet devices (Mobile Internet Device, MID),
  • UE User Equipment
  • PDA personal digital assistant
  • mobile Internet devices Mobile Internet Device, MID
  • For terminal-side devices such as wearable devices (Wearable Devices) or robots, it should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present invention.
  • the aforementioned network device 12 may be a 4G base station, or a 5G base station, or a base station of a later version, or a base station in other communication systems, or it is called Node B, Evolved Node B, or Transmission Reception Point (TRP), Or access point (Access Point, AP), or other vocabulary in the field, as long as the same technical effect is achieved, the network device is not limited to a specific technical vocabulary.
  • the aforementioned network device 12 may be a master node (Master Node, MN) or a secondary node (Secondary Node, SN). It should be noted that, in the embodiment of the present invention, only a 5G base station is taken as an example, but the specific type of network equipment is not limited.
  • FIG. 2 is a flowchart of an information acquisition method provided by an embodiment of the present application. The method is applied to a terminal, as shown in FIG. 2, and includes the following steps:
  • Step 201 Obtain HARQ-ACK related information, where the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, where the HARQ-ACK related information includes at least one of the following:
  • the first HARQ-ACK related information included in the unicast DCI detected by the terminal
  • the second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
  • the foregoing obtaining HARQ-ACK related information may include at least one of the following:
  • HARQ-ACK related information may refer to related information used for HARQ-ACK feedback, for example: used to determine the time domain, frequency domain, and space domain resources for feeding back HARQ-ACK, number of bits, transmission power, etc. Related Information.
  • the first HARQ-ACK related information obtained in step 201 includes at least one of the foregoing first HARQ-ACK related information and the foregoing second HARQ-ACK related information can be understood as:
  • the first HARQ-ACK related information acquired in step 201 includes the foregoing first HARQ-ACK related information
  • the first HARQ-ACK related information obtained in step 201 includes the foregoing second HARQ-ACK related information
  • the first HARQ-ACK related information obtained in step 201 includes the foregoing first HARQ-ACK related information and the foregoing second HARQ-ACK related information.
  • the above-mentioned first HARQ-ACK related information and the above-mentioned second HARQ-ACK related information may not have an intersection.
  • this is not limited, and there may also be an intersection.
  • the priority of these intersections can be predefined
  • the HARQ-ACK related information included in the predefined unicast DCI has a higher priority than the pre-acquired HARQ-ACK related information.
  • the above-mentioned pre-acquired HARQ-ACK related information may be HARQ-ACK related information pre-defined by the protocol or pre-configured by the network side to the terminal.
  • the multicast PDSCH of the aforementioned terminal may be one or more multicast PDSCHs, and the HARQ-ACK of these PDSCHs may be fed back on the same or different resources. For example: all are fed back on one resource corresponding to the above-mentioned first HARQ-ACK related information, or multiple multicast PDSCHs are fed back on multiple resources corresponding to the above-mentioned first HARQ-ACK related information, such as feedback on multiple time slots .
  • the terminal can obtain the HARQ-ACK related information, so that the terminal can support the HARQ-ACK feedback of the multicast service, thereby improving the reliability of the multicast service transmission.
  • unicast DCI may be one or more DCIs.
  • the foregoing unicast DCI includes: the first unicast DCI detected by the terminal after the multicast DCI of the multicast PDSCH is scheduled.
  • the foregoing multicast DCI may be all the DCIs of the multicast PDSCH of the terminal in step 201.
  • the multicast DCI in this embodiment refers to scheduling these multiple multicast PDSCHs. Of one or more DCIs.
  • the terminal can accurately and timely determine the first HARQ-ACK related information of the multicast PDSCH.
  • the multicast DCI of two multicast PDSCHs is before the first unicast DCI
  • the multicast DCI of the other two multicast PDSCHs is after the first unicast DCI
  • the second unicast DCI then the first two The first HARQ-ACK related information of the multicast PDSCH is the HARQ-ACK related information in the first unicast DCI
  • the first HARQ-ACK related information of the last two multicast PDSCHs is the HARQ-ACK in the second unicast DCI Related Information.
  • the above unicast DCI includes: after the multicast PDSCH (for example, at least one of the start symbol or the end symbol of the DCI is after the start symbol or the end symbol of the multicast PDSCH) The first unicast DCI detected by the terminal.
  • This method can be applied to the situation that the multicast PDSCH does not have a corresponding scheduling DCI, for example, the multicast PDSCH is transmitted in a specific time-frequency domain according to the high-level configuration (such as determining the transmission time-frequency resource of the multicast PDSCH according to SPS PDSCH or MBSFN) .
  • the foregoing first HARQ-ACK related information includes at least one of the following:
  • Downlink assignment indicator (Downlink Assignment Index, DAI), feedback timing indicator, PUCCH resource indicator (PUCCH Resource Indicator, PRI), transmit power indicator, priority indicator (priority indicator).
  • DAI Downlink Assignment Index
  • PRI PUCCH Resource Indicator
  • the above DAI may include counting DAI (counting DAI, C-DAI), and may also include total DAI (T-DAI), or may include only T-DAI.
  • the above feedback timing indicator can indicate the HARQ-ACK feedback time, for example, it can include the PDSCH-to-HARQ feedback timing indicator (PDSCH-to-HARQ_feedback timing indicator), that is, the k1 indicator, such as k1 indicating the difference between the PDSCH and the corresponding HARQ-ACK time interval.
  • PDSCH-to-HARQ_feedback timing indicator PDSCH-to-HARQ_feedback timing indicator
  • the foregoing transmit power indicator may indicate the power indicator fed back by the HARQ-ACK, for example, includes a transmit power control (transmit power control, TPC) indicator.
  • TPC transmit power control
  • the foregoing priority indication may indicate the priority of HARQ-ACK.
  • the other part of the indicator can be indicated by the DCI of the multicast PDSCH. Either pre-configured, or agreed by agreement, such as configured through the above-mentioned second HARQ-ACK related information.
  • the foregoing at least one item may be included by one or more DCIs.
  • one DCI includes the foregoing DAI
  • the other DCI includes at least one of a feedback timing indicator, a PRI, a transmit power indicator, and a priority indicator.
  • the DAI includes:
  • the first bit and/or the second bit wherein the first bit is used to indicate unicast PDSCH, and the second bit is used to indicate multicast PDSCH;
  • the third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  • the above-mentioned indication of unicast PDSCH may be an indication of scheduling of unicast PDSCH
  • the above-mentioned indication of multicast PDSCH may be an indication of scheduling of multicast PDSCH.
  • the above-mentioned joint indication of unicast PDSCH and multicast PDSCH may be respectively indicating unicast PDSCH scheduling and multicast PDSCH in a joint indication manner, or indicating the sum of unicast PDSCH and multicast PDSCH.
  • Unicast DCI contains X bits of DAI to indicate unicast PDSCH scheduling, and DCI also contains Y bits of DAI for multicast PDSCH scheduling, or unicast DCI contains Z bits of DAI to indicate unicast PDSCH and multicast PDSCH scheduling.
  • the unicast DCI includes the DCI for scheduling the PUSCH.
  • PUSCH physical uplink shared channel
  • the at least one multicast PDSCH that the HARQ-ACK is multiplexed on the physical uplink shared channel PUSCH for transmission may be part or all of the multicast PDSCH in step 201.
  • the HARQ-ACK related information includes the HARQ-ACK related information of the DCI that schedules the PUSCH, so that the HARQ-ACK of the PDSCH can be correctly replicated. It is used for transmission on PUSCH to avoid inconsistent understanding of HARQ-ACK bits between base station and terminal, thereby improving the effectiveness and reliability of the communication system.
  • the first HARQ-ACK related information in step 201 may be included in the above-mentioned DCI for scheduling the PUSCH, or may be included after the above-mentioned DCI for scheduling the PUSCH and the multicast DCI for scheduling the multicast PDSCH.
  • the first unicast DCI detected by the terminal is included together.
  • the DCI that schedules the PUSCH includes the above-mentioned T-DAI
  • the above-mentioned first unicast DCI includes feedback timing indication, PRI, transmit power indication, and priority indication. At least one of. That is, HARQ-ACK related information included in multiple DCIs can be used for HARQ-ACK feedback to ensure correct feedback of HARQ-ACK information.
  • the HARQ-ACK of the at least one multicast PDSCH may be multiplexed for transmission, and the terminal may multiplex the HARQ-ACK of the at least one multicast PDSCH for transmission, so the foregoing implementation manner can be understood as follows:
  • the terminal multiplexes the HARQ-ACK of at least one multicast PDSCH on the PUSCH for transmission, and the unicast DCI includes the DCI for scheduling the PUSCH
  • the first HARQ in the unicast DCI detected by the terminal -ACK related information includes the DAI indication information
  • the DAI indication information may include:
  • the first bit and the second bit wherein the first bit is used to indicate unicast PDSCH, and the second bit is used to indicate multicast PDSCH;
  • the third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  • the aforementioned unicast DCI includes the DCI for scheduling PUSCH transmission, in this way, only T-DAI may be included in the DCI, that is, an uplink grant (UL grant), and no other information may be included.
  • UL grant uplink grant
  • T-DAI in the UL grant a scenario where the terminal only has multicast PDSCH and no unicast downlink scheduling can be considered, that is, there is no first bit, only the second bit, or the third bit.
  • the DCI for scheduling the PUSCH may be a non-fallback DCI, and the DCI may include only T-DAI but not C-DAI.
  • the HARQ-ACK of the multicast PDSCH can be multiplexed on the PUSCH for transmission.
  • the multicast PDSCH of the terminal corresponds to Q different radio network temporary identifiers (RNTI):
  • the second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
  • Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
  • the multicast PDSCH of the terminal above corresponds to Q different RNTIs
  • the T multicast PDSCHs of the terminal correspond to Q different RNTIs, where T is an integer greater than or equal to Q, that is, there may be multiple multicast PDSCHs.
  • T is an integer greater than or equal to Q
  • the foregoing RNTI may be a group radio network temporary identifier (g-RNTI).
  • g-RNTI group radio network temporary identifier
  • the above-mentioned second bit contains N 1 , N 2 , ..., N Q T-DAIs respectively corresponding to the multicast PDSCHs corresponding to different RNTIs.
  • the aforementioned Q may be less than or equal to a certain threshold.
  • the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
  • the above-mentioned DAI includes the first bit, or the above-mentioned DAI includes the first bit and the second bit, or the above-mentioned DAI includes the third bit, etc.
  • this is not limited, and it can be Agreement stipulated.
  • the second HARQ-ACK related information obtained by the terminal in advance includes: second HARQ-ACK related information configured by higher layer signaling, or predefined second HARQ-ACK related information;
  • the second HARQ-ACK related information implicitly determined by the terminal includes: the second HARQ-ACK related information determined according to the service type or service priority of the multicast PDSCH.
  • the foregoing second HARQ-ACK related information may include: the HARQ-ACK priority of the multicast PDSCH, such as a codebook priority index corresponding to the HARQ-ACK of the multicast PDSCH.
  • the HARQ-ACK priority of the multicast PDSCH such as a codebook priority index corresponding to the HARQ-ACK of the multicast PDSCH.
  • PRI can be included.
  • the terminal may determine the codebook priority index corresponding to HARQ-ACK of the multicast PDSCH according to the high-level signaling configuration; or, pre-define the codebook priority index corresponding to the HARQ-ACK of the multicast PDSCH, such as low priority, or according to The service type or service priority corresponding to the PDSCH reported by the terminal determines the codebook priority index of the HARQ-ACK of the multicast PDSCH.
  • the foregoing second HARQ-ACK related information determined according to the service type of the multicast PDSCH may be determined according to the corresponding relationship between the service type or service priority obtained in advance and the HARQ-ACK related information according to the multicast PDSCH The second HARQ-ACK related information determined by the service type.
  • the above method further includes:
  • the HARQ-ACK feedback of the multicast PDSCH may be determined by determining the HARQ-ACK feedback resource, priority and other information of the multicast PDSCH according to the HARQ-ACK related information, and then The HARQ-ACK feedback of the multicast PDSCH is performed based on the determined information, so as to improve the transmission reliability of the multicast PDSCH.
  • the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
  • the multicast DCI does not include the HARQ-ACK related information may be that the multicast DCI does not include related content in the HARQ-ACK related information included in step 201.
  • the DAI of the multicast PDSCH is obtained from the DAI indication in the unicast DCI, and the multicast DCI does not include the DAI indication.
  • the k1 of the multicast PDSCH is obtained by the k1 indication in the nearest unicast DCI after the multicast DCI, where the multicast DCI does not include the feedback timing indicator field (for example: PDSCH-to-HARQ_feedback timing indicator field) .
  • the terminal can transmit the HARQ-ACK corresponding to the multicast PDSCH in the time slot n, where the time slot n is indicated according to the feedback timing indicator field in the unicast DCI, and the unicast DCI can be any PDCCH after the multicast DCI.
  • the first unicast DCI detected by the detection opportunity.
  • the UE determines the PUCCH resource for feeding back HARQ-ACK according to the PRI indication in the unicast DCI, where the multicast DCI does not include the PRI indication.
  • the terminal can transmit the HARQ-ACK of the multicast PDSCH on PUCCH1, where PUCCH1 is determined according to the PRI indication in the unicast DCI, and the unicast DCI includes the first one detected by any PDCCH detection opportunity after the multicast DCI.
  • Unicast DCI Unicast DCI.
  • the terminal determines the codebook priority index corresponding to the HARQ-ACK of the multicast PDSCH according to the priority indication of the unicast DCI, where the priority indication field is not included in the multicast DCI, and the unicast DCI includes the multicast DCI The first unicast DCI detected by any one of the PDCCH detection opportunities.
  • HARQ-ACK related information is obtained, and the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, where the HARQ-ACK related information includes at least one of the following: The first HARQ-ACK related information included in the unicast DCI detected by the terminal; the second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
  • the terminal can obtain the aforementioned HARQ-ACK related information. And it can also enable the terminal to support the HARQ-ACK feedback of the multicast service, thereby improving the reliability of the multicast service transmission.
  • FIG. 3 is a flowchart of an information determination method provided by an embodiment of the present application. The method is applied to a network device. As shown in FIG. 3, it includes the following steps:
  • Step 301 Determine HARQ-ACK related information, where the HARQ-ACK related information is used for HARQ-ACK feedback of the terminal's multicast channel PDSCH, where the HARQ-ACK related information includes at least one of the following:
  • the first HARQ-ACK related information included in the unicast DCI sent to the terminal
  • the second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
  • the unicast DCI includes: the first unicast DCI sent to the terminal after the multicast DCI of the multicast PDSCH is scheduled.
  • the first HARQ-ACK related information includes at least one of the following:
  • Downlink allocation indicator DAI feedback timing indicator
  • PUCCH resource indicator PRI transmit power indicator
  • priority indicator transmit power indicator
  • the DAI includes:
  • the first bit and/or the second bit wherein the first bit is used to indicate a unicast channel PDSCH, and the second bit is used to indicate a multicast PDSCH;
  • the third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  • the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on the physical uplink shared channel PUSCH for transmission, then the unicast DCI includes the DCI for scheduling the PUSCH.
  • the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identifiers RNTI:
  • the second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
  • Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
  • the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
  • the second HARQ-ACK related information obtained by the network device in advance includes: high-layer signaling configuration second HARQ-ACK related information, or predefined second HARQ-ACK related information;
  • the second HARQ-ACK related information implicitly determined by the network device includes: the second HARQ-ACK related information determined according to the service type of the multicast PDSCH.
  • the second HARQ-ACK related information includes: the HARQ-ACK priority of the multicast PDSCH.
  • the method further includes:
  • the HARQ-ACK feedback of the multicast PDSCH is received.
  • the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
  • this embodiment is used as an implementation on the network device side corresponding to the embodiment shown in FIG. This embodiment will not be repeated.
  • the terminal can also obtain HARQ-ACK related information.
  • Embodiment 1 As shown in Figure 4, DCI 1-4 schedule PDSCH 1-4 respectively, where DCI 1-2 is multicast DCI, multicast PDSCH 1-2 is scheduled, DCI 3-4 is unicast DCI, and the scheduling list Broadcast PDSCH3-4.
  • the multicast DCI 1-2 does not include the DAI indication, and the DAI information of the scheduled PDSCH is obtained according to the first unicast DCI afterwards.
  • DCI3 contains 2-bit C-DAI or T-DAI to indicate multicast PDSCH, and the value of C-DAI or T-DAI is 2, which means that the current PDCCH receiver will schedule two multicast PDSCHs.
  • the unicast DCI also contains 2 bit C-DAI for unicast PDSCH, and the C-DAI value is 1, indicating that the currently scheduled unicast PDSCH is the first unicast PDSCH.
  • multicast DCI 1-2 may not include PDSCH to HARQ-ACK feedback timing indication information.
  • the timing indication information is obtained from the first unicast DCI afterwards.
  • PDSCH to HARQ-ACK in DCI3 The value of the feedback timing indication information (k1) is 2, which means that the end symbol is fed back in the PDSCH3 of the time slot n in the time slot n+2, and the UE will feedback the HARQ-ACK of the PDSCH 1 and PDSCH2 in the time slot n+2, and also That is, the UE determines the time slot for feeding back the HARQ-ACK of PDSCH1 and PDSCH2 according to the PDSCH to HARQ-ACK feedback timing indication information in DCI3.
  • the multicast DCI 1-2 may not include PRI indication information, and the terminal determines the PUCCH resource for feeding back HARQ-ACK according to the unicast DCI indication.
  • the terminal determines to feed back the PUCCH resources of PDSCH1, PDSCH2, and PDSCH3 according to the indication of DCI3.
  • the terminal feeds back the HARQ-ACK of PDSCH 1, PDSCH 2, PDSCH 3, and PDSCH 4 in time slot n+2, and the terminal controls the PRI and OR of the last DCI (last DCI) in unicast DCI.
  • the channel element index (Control Channel Elements index, CCE index) determines the PUCCH resource for HARQ-ACK feedback.
  • the multicast DCI may not include TPC indication information, and the terminal determines the transmission power of the PUCCH according to the TPC in the unicast DCI.
  • the terminal can separately construct the HARQ-ACK (sub)codebook of the multicast PDSCH1-2 and the HARQ-ACK of the unicast PDSCH 3-4. (Sub)codebook, and concatenate two (sub)codebooks into one codebook.
  • the unicast DCI contains only one DAI indicator, which is used to indicate unicast and multicast PDSCH scheduling.
  • DAI 3 in DCI3, which means that the current PDCCH receiver will be the current DCI ,
  • a total of 3 PDSCHs are scheduled, that is, in addition to the current PDSCH3 scheduled by DCI3, two PDSCHs are also scheduled before DCI3, namely PDSCH 1 and PDSCH2.
  • the terminal feeds back the HARQ-ACK of multicast PDSCH 1-2 and unicast PDSCH 3-4 in time slot n+2.
  • the PUSCH scheduled by DCI 5 overlaps with HARQ-ACK PUCCH resources, and the terminal will HARQ- ACK is multiplexed and transmitted on PUSCH.
  • DCI5 can include T-DAI.
  • T-DAI there are two T-DAIs in DCI5, and the first DAI is used to indicate multicast PDSCH.
  • the terminal can determine that the terminal has missed the third multicast DCI.
  • only one T-DAI indication is included in the UL grant.
  • the T-DAI is applied to multicast PDSCH and unicast PDSCH, and represents the total number of multicast PDSCH and unicast PDSCH fed back in the current time slot. In this way, there is only one T-DAI, the bit overhead is small, and the impact of missed downlink DCI detection on PUSCH transmission is avoided.
  • the T-DAI is applied to unicast PDSCH, which represents the total number of unicast PDSCH fed back in the current time slot.
  • the T-DAI is applied to the multicast PDSCH, which represents the total number of multicast PDSCHs fed back in the current time slot.
  • the UL grant includes multiple T-DAI indications for the multicast PDSCH.
  • the number of T-DAIs is determined according to the number of g-RNTIs configured by the UE for scheduling multicast PDSCH or according to higher-layer signaling.
  • Each T-DAI corresponds to a g-RNTI, which is used to indicate the total number of PDSCHs scheduled by the g-RNTI fed back in the time slot.
  • the T-DAI indication mode of the UL grant can be when there is a DAI indication in the multicast DCI, or there is no DAI indication in the multicast DCI, that is, the DAI indication mode in the UL grant has nothing to do with the DAI indication mode of the multicast DCI .
  • the DCI schedules the unicast PDSCH, it can also indicate the codebook priority index corresponding to the HARQ-ACK of the PDSCH, such as the priority indicator field in the DCI.
  • the terminal can determine which codebook the HARQ-ACK belongs to according to the priority index, and the processing method of the terminal when the HARQ-ACK PUCCH conflicts with other uplink transmission time domain resources (for example, HARQ-ACK PUCCH with high priority and PUCCH with low priority).
  • the terminal discards the PUSCH and transmits the PUCCH. If the PUCCH and PUSCH have the same priority, the terminal multiplexes UCI on the PUSCH for transmission).
  • the codebook priority index problem corresponding to the HARQ-ACK of the multicast PDSCH can be indicated in any of the following ways:
  • Default priority i.e. pre-defined priority index
  • the service type or service priority corresponding to the multicast PDSCH is determined.
  • the execution subject of the information acquisition method provided in the embodiments of the present application may be an information acquisition device, or a control module in the information acquisition device for executing the method for acquiring loading information.
  • the method for acquiring the loaded information executed by the information acquisition method device is taken as an example to illustrate the information acquisition method provided by the embodiment of the present application.
  • the execution subject may be an information determination device, or a control module in the information determination device for executing the method for determining loading information.
  • the method for determining loading information executed by the information determining apparatus is taken as an example to illustrate the information determining method provided in the embodiments of the present application.
  • FIG. 7 is a structural diagram of an information acquisition device provided by an embodiment of the present application. As shown in FIG. 7, the information acquisition device 700 includes:
  • the acquiring module 700 is configured to acquire HARQ-ACK related information of the hybrid automatic repeat request confirmation, and the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast physical downlink shared channel PDSCH of the terminal, wherein the HARQ -ACK related information includes at least one of the following:
  • the second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
  • the unicast DCI includes: the first unicast DCI detected by the terminal after the multicast DCI of the multicast PDSCH is scheduled.
  • the first HARQ-ACK related information includes at least one of the following:
  • Downlink allocation indicator DAI feedback timing indicator
  • PUCCH resource indicator PRI transmit power indicator
  • priority indicator transmit power indicator
  • the DAI includes:
  • the first bit and/or the second bit wherein the first bit is used to indicate unicast PDSCH, and the second bit is used to indicate multicast PDSCH;
  • the third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  • the unicast DCI includes the DCI for scheduling the PUSCH.
  • the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identifiers RNTI:
  • the second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
  • Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
  • the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
  • the second HARQ-ACK related information obtained by the terminal in advance includes: second HARQ-ACK related information configured by higher layer signaling, or predefined second HARQ-ACK related information;
  • the second HARQ-ACK related information implicitly determined by the terminal includes: the second HARQ-ACK related information determined according to the service type of the multicast PDSCH.
  • the second HARQ-ACK related information includes: the HARQ-ACK priority of the multicast PDSCH.
  • the device includes:
  • the feedback module 702 is configured to perform HARQ-ACK feedback of the multicast PDSCH according to the HARQ-ACK related information.
  • the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
  • the information acquisition device provided in the embodiment of the present invention can implement each process in the method embodiment of FIG.
  • the information acquiring device in the embodiment of the present application may be a device, or a component, an integrated circuit, or a chip in a terminal.
  • FIG. 9 is a structural diagram of an information determining apparatus provided by an embodiment of the present application. As shown in FIG. 9, the information determining apparatus 900 includes:
  • the determining module 901 is configured to determine the HARQ-ACK related information of the hybrid automatic repeat request confirmation, and the HARQ-ACK related information is used for HARQ-ACK feedback of the terminal's multicast physical downlink shared channel PDSCH, wherein the HARQ-ACK
  • the relevant information includes at least one of the following:
  • the second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
  • the unicast DCI includes: the first unicast DCI sent to the terminal after the multicast DCI of the multicast PDSCH is scheduled.
  • the first HARQ-ACK related information includes at least one of the following:
  • Downlink allocation indicator DAI feedback timing indicator
  • PUCCH resource indicator PRI transmit power indicator
  • priority indicator transmit power indicator
  • the DAI includes:
  • the first bit and/or the second bit wherein the first bit is used to indicate a unicast channel PDSCH, and the second bit is used to indicate a multicast PDSCH;
  • the third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  • the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on the physical uplink shared channel PUSCH for transmission, then the unicast DCI includes the DCI for scheduling the PUSCH.
  • the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identifiers RNTI:
  • the second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
  • Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
  • the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
  • the second HARQ-ACK related information obtained by the network device in advance includes: high-layer signaling configuration second HARQ-ACK related information, or predefined second HARQ-ACK related information;
  • the second HARQ-ACK related information implicitly determined by the network device includes: the second HARQ-ACK related information determined according to the service type of the multicast PDSCH.
  • the second HARQ-ACK related information includes: the HARQ-ACK priority of the multicast PDSCH.
  • the device further includes:
  • the receiving module 802 is configured to receive HARQ-ACK feedback of the multicast PDSCH according to the HARQ-ACK related information.
  • the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
  • the information determining apparatus provided in the embodiment of the present invention can implement each process in the method embodiment of FIG. 3. To avoid repetition, details are not described here, and the terminal can obtain HARQ-ACK related information.
  • the obtaining and determining apparatus in the embodiment of the present application may be an apparatus, or a component, integrated circuit, or chip in a network device.
  • FIG. 11 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
  • the terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, a processor 1110 and other components .
  • the terminal 1100 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 1110 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 structure of the electronic device shown in FIG. 11 does not constitute a limitation on the electronic device.
  • the electronic device may include more or less components than those shown in the figure, or some components may be combined, or different component arrangements, which will not be repeated here. .
  • the radio frequency unit 1101 or the processor 1110 is configured to obtain HARQ-ACK related information for the hybrid automatic repeat request confirmation, and the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast physical downlink shared channel PDSCH of the terminal ,
  • the HARQ-ACK related information includes at least one of the following:
  • the second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
  • the unicast DCI includes: the first unicast DCI detected by the terminal after the multicast DCI of the multicast PDSCH is scheduled.
  • the first HARQ-ACK related information includes at least one of the following:
  • Downlink allocation indicator DAI feedback timing indicator
  • PUCCH resource indicator PRI transmit power indicator
  • priority indicator transmit power indicator
  • the DAI includes:
  • the first bit and/or the second bit wherein the first bit is used to indicate unicast PDSCH, and the second bit is used to indicate multicast PDSCH;
  • the third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  • the unicast DCI includes the DCI for scheduling the PUSCH.
  • the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identifiers RNTI:
  • the second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
  • Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
  • the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
  • the second HARQ-ACK related information obtained by the terminal in advance includes: second HARQ-ACK related information configured by higher layer signaling, or predefined second HARQ-ACK related information;
  • the second HARQ-ACK related information implicitly determined by the terminal includes: the second HARQ-ACK related information determined according to the service type of the multicast PDSCH.
  • the second HARQ-ACK related information includes: the HARQ-ACK priority of the multicast PDSCH.
  • the radio frequency unit 1101 is also used for:
  • the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
  • the foregoing terminal may obtain the foregoing HARQ-ACK related information. And it can also enable the terminal to support the HARQ-ACK feedback of the multicast service, thereby improving the reliability of the multicast service transmission.
  • an embodiment of the present invention further provides a terminal, including a processor 1110, a memory 1109, and a program or instruction stored on the memory 1109 and capable of running on the processor 1110.
  • the program or instruction is executed by the processor 1110.
  • Fig. 12 is a structural diagram of a network device provided by an embodiment of the present invention.
  • the network device 1200 includes: a processor 1201, a transceiver 1202, a memory 1203, and a bus interface, where:
  • the transceiver 1202 or the processor 1201 is configured to determine the HARQ-ACK related information of the hybrid automatic repeat request confirmation, and the HARQ-ACK related information is used for HARQ-ACK feedback of the terminal's multicast physical downlink shared channel PDSCH, where
  • the HARQ-ACK related information includes at least one of the following:
  • the second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
  • the unicast DCI includes: the first unicast DCI sent to the terminal after the multicast DCI of the multicast PDSCH is scheduled.
  • the first HARQ-ACK related information includes at least one of the following:
  • Downlink allocation indicator DAI feedback timing indicator
  • PUCCH resource indicator PRI transmit power indicator
  • priority indicator transmit power indicator
  • the DAI includes:
  • the first bit and/or the second bit wherein the first bit is used to indicate a unicast channel PDSCH, and the second bit is used to indicate a multicast PDSCH;
  • the third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  • the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on the physical uplink shared channel PUSCH for transmission, then the unicast DCI includes the DCI for scheduling the PUSCH.
  • the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identifiers RNTI:
  • the second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
  • Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
  • the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
  • the second HARQ-ACK related information obtained by the network device in advance includes: high-layer signaling configuration second HARQ-ACK related information, or predefined second HARQ-ACK related information;
  • the second HARQ-ACK related information implicitly determined by the network device includes: the second HARQ-ACK related information determined according to the service type of the multicast PDSCH.
  • the second HARQ-ACK related information includes: the HARQ-ACK priority of the multicast PDSCH.
  • the transceiver 1202 is also used for:
  • the HARQ-ACK feedback of the multicast PDSCH is received.
  • the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
  • the foregoing network device may enable the terminal to obtain the foregoing HARQ-ACK related information. And it can also enable the terminal to support the HARQ-ACK feedback of the multicast service, thereby improving the reliability of the multicast service transmission.
  • the transceiver 1202 is configured to receive and send data under the control of the processor 1201, and the transceiver 1202 includes at least two antenna ports.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1201 and various circuits of the memory represented by the memory 1203 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 1202 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the user interface 1204 may also be an interface capable of externally connecting internally required equipment, and the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1203 can store data used by the processor 1201 when performing operations.
  • the embodiment of the present invention also provides a network device, including a processor 1201, a memory 1203, a program or instruction stored on the memory 1203 and running on the processor 1201, and the program or instruction is executed by the processor 1201.
  • a network device including a processor 1201, a memory 1203, a program or instruction stored on the memory 1203 and running on the processor 1201, and the program or instruction is executed by the processor 1201.
  • the embodiment of the present application further provides a readable storage medium, the readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, each process of the foregoing information acquisition method or information determination method embodiment is implemented, And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
  • the processor is the processor in the terminal or network device 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), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk.
  • An embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a program or an instruction to implement the above-mentioned information acquisition method or information determination
  • the processor is used to run a program or an instruction to implement the above-mentioned information acquisition method or information determination
  • chips mentioned in the embodiments of the present application may also be referred to as system-level chips, system-on-chips, system-on-chips, or system-on-chips.
  • modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, Other electronic units or combinations thereof that perform the functions described in this application.
  • ASICs application specific integrated circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing equipment
  • PLD Programmable Logic Device
  • Field-Programmable Gate Array Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.
  • a terminal which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

Abstract

Disclosed in the present application are an information acquisition method, an information determination method, an apparatus, and a related device. The information acquisition method comprises: acquiring HARQ-ACK related information, the HARQ-ACK related information being used for HARQ-ACK feedback of a multicast PDSCH of a terminal, and the HARQ-ACK related information comprising at least one among the following: first HARQ-ACK related information comprised in unicast DCI detected by the terminal, and second HARQ-ACK related information that is pre-acquired or implicitly determined by the terminal.

Description

信息获取方法、信息确定方法、装置和相关设备Information acquisition method, information determination method, device and related equipment
相关申请的交叉引用Cross-references to related applications
本申请主张在2020年4月30日在中国提交的中国专利申请号No.202010368259.7的优先权,其全部内容通过引用包含于此。This application claims the priority of Chinese Patent Application No. 202010368259.7 filed in China on April 30, 2020, the entire content of which is incorporated herein by reference.
技术领域Technical field
本申请属于通信技术领域,尤其涉及一种信息获取方法、信息确定方法、装置和相关设备。This application belongs to the field of communication technology, and in particular relates to an information acquisition method, information determination method, device, and related equipment.
背景技术Background technique
一些通信系统(例如:5G系统)支持组播业务,例如:多媒体广播组播业务(Multimedia Broadcast Multicast Service,MBMS)。其中,组播业务主要是通过组播下行控制信息(Downlink Control Information,DCI)调度,如组播DCI调度的物理下行共享信道(Physical downlink shared channel,PDSCH)。且目前这些通信系统中网络侧不会向终端发送组播业务的混合自动重传请求确认(Hybrid Automatic Repeat request Acknowledgement,HARQ-ACK)相关信息,导致终端无法获得HARQ-ACK相关信息。Some communication systems (for example, 5G systems) support multicast services, such as Multimedia Broadcast Multicast Service (MBMS). Among them, the multicast service is mainly scheduled through multicast Downlink Control Information (DCI), such as the physical downlink shared channel (PDSCH) scheduled by the multicast DCI. In addition, in these communication systems, the network side does not send information related to the hybrid automatic repeat request (Hybrid Automatic Repeat request Acknowledgement, HARQ-ACK) of the multicast service to the terminal, so that the terminal cannot obtain the HARQ-ACK related information.
发明内容Summary of the invention
本申请实施例提供一种信息获取方法、信息确定方法、装置和相关设备,能够解决终端无法获得HARQ-ACK相关信息的问题。The embodiments of the present application provide an information acquisition method, information determination method, device, and related equipment, which can solve the problem that the terminal cannot obtain HARQ-ACK related information.
第一方面,本申请实施例提供一种信息获取方法,应用于终端,包括:In the first aspect, an embodiment of the present application provides an information acquisition method, which is applied to a terminal, and includes:
获取HARQ-ACK相关信息,所述HARQ-ACK相关信息用于所述终端的组播PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:Acquire HARQ-ACK related information, the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, wherein the HARQ-ACK related information includes at least one of the following:
所述终端检测到的单播DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast DCI detected by the terminal;
所述终端预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
第二方面,本申请实施例提供一种信息确定方法,应用于网络设备,包 括:In the second aspect, the embodiments of the present application provide an information determination method, which is applied to network equipment, including:
确定HARQ-ACK相关信息,所述HARQ-ACK相关信息用于终端的组播PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:Determine HARQ-ACK related information, the HARQ-ACK related information is used for HARQ-ACK feedback of the terminal's multicast PDSCH, wherein the HARQ-ACK related information includes at least one of the following:
向所述终端发送的单播DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast DCI sent to the terminal;
所述网络设备预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
第三方面,本申请实施例提供一种信息获取装置,包括:In a third aspect, an embodiment of the present application provides an information acquisition device, including:
获取模块,用于获取HARQ-ACK相关信息,所述HARQ-ACK相关信息用于所述终端的组播PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:The obtaining module is configured to obtain HARQ-ACK related information, the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, wherein the HARQ-ACK related information includes at least one of the following:
所述终端检测到的单播DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast DCI detected by the terminal;
所述终端预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
第四方面,本申请实施例提供一种信息确定装置,包括:In a fourth aspect, an embodiment of the present application provides an information determination device, including:
确定模块,用于确定HARQ-ACK相关信息,所述HARQ-ACK相关信息用于终端的组播PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:The determining module is configured to determine HARQ-ACK related information, the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, wherein the HARQ-ACK related information includes at least one of the following:
向所述终端发送的单播DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast DCI sent to the terminal;
所述网络设备预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
第五方面,本申请实施例提供一种终端,包括:存储器、处理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者指令,所述程序或者指令被所述处理器执行时实现本申请实施例提供的信息获取方法中的步骤。In a fifth aspect, an embodiment of the present application provides a terminal, including a memory, a processor, and a program or instruction stored on the memory and capable of running on the processor, and the program or instruction is executed by the processor. The steps in the information acquisition method provided in the embodiments of the present application are implemented during execution.
第六方面,本申请实施例提供一种网络设备,包括:存储器、处理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者指令,所述程序或者指令被所述处理器执行时实现本申请实施例提供的信息确定方法中的步骤。In a sixth aspect, an embodiment of the present application provides a network device, including: a memory, a processor, and a program or instruction stored on the memory and running on the processor, and the program or instruction is processed by the processor. The steps in the information determination method provided in the embodiments of the present application are implemented when the device is executed.
第七方面,本申请实施例提供一种可读存储介质,所述可读存储介质上存储有程序或指令,所述程序或指令被处理器执行时实现本申请实施例提供的信息获取方法中的步骤,或者所述程序或指令被处理器执行时实现本申请实施例提供的信息确定方法中的步骤。In a seventh aspect, an embodiment of the present application provides a readable storage medium with a program or instruction stored on the readable storage medium. When the program or instruction is executed by a processor, the information acquisition method provided by the embodiment of the present application is implemented When the program or instruction is executed by a processor, the steps in the information determination method provided in the embodiments of the present application are implemented.
第八方面,本申请实施例提供了一种芯片,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,实现本申请实施例提供的信息获取方法或者信息确定方法。In an eighth aspect, an embodiment of the present application provides a chip. The chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the embodiment of the present application. Provide information acquisition method or information determination method.
本申请实施例中,获取HARQ-ACK相关信息,所述HARQ-ACK相关信息用于所述终端的组播PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:所述终端检测到的单播DCI包括的第一HARQ-ACK相关信息;所述终端预先获取或者隐式确定的第二HARQ-ACK相关信息。这样终端可以获取上述HARQ-ACK相关信息。且还可以使得终端可以支持组播业务的HARQ-ACK反馈,进而提高组播业务传输的可靠性。In the embodiment of the present application, HARQ-ACK related information is obtained, and the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, where the HARQ-ACK related information includes at least one of the following: The first HARQ-ACK related information included in the unicast DCI detected by the terminal; the second HARQ-ACK related information obtained in advance or implicitly determined by the terminal. In this way, the terminal can obtain the aforementioned HARQ-ACK related information. And it can also enable the terminal to support the HARQ-ACK feedback of the multicast service, thereby improving the reliability of the multicast service transmission.
附图说明Description of the drawings
图1是本申请实施例可应用的一种网络系统的结构图;FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present application;
图2是本申请实施例提供的一种信息获取方法的流程图;FIG. 2 is a flowchart of an information acquisition method provided by an embodiment of the present application;
图3是本申请实施例提供的一种信息确定方法的流程图;FIG. 3 is a flowchart of an information determination method provided by an embodiment of the present application;
图4是本申请实施例提供的一种DCI调度示意图;FIG. 4 is a schematic diagram of DCI scheduling provided by an embodiment of the present application;
图5是本申请实施例提供的另一种DCI调度示意图;FIG. 5 is a schematic diagram of another DCI scheduling provided by an embodiment of the present application;
图6是本申请实施例提供的另一种DCI调度示意图;FIG. 6 is a schematic diagram of another DCI scheduling provided by an embodiment of the present application;
图7是本申请实施例提供的一种信息获取装置的结构图;FIG. 7 is a structural diagram of an information acquisition device provided by an embodiment of the present application;
图8是本申请实施例提供的另一种信息获取装置的结构图;FIG. 8 is a structural diagram of another information acquisition device provided by an embodiment of the present application;
图9是本申请实施例提供的一种信息确定装置的结构图;FIG. 9 is a structural diagram of an information determination device provided by an embodiment of the present application;
图10是本申请实施例提供的一种信息确定装置的结构图;FIG. 10 is a structural diagram of an information determining device provided by an embodiment of the present application;
图11是本申请实施例提供的一种终端的结构图;FIG. 11 is a structural diagram of a terminal provided by an embodiment of the present application;
图12是本申请实施例提供的一种网络设备的结构图。Fig. 12 is a structural diagram of a network device provided by an embodiment of the present application.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形,意图 在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一,例如A和/或B,表示包含单独A,单独B,以及A和B都存在三种情况。The term "including" in the specification and claims of this application and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to clear Instead, those steps or units listed below may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment. In addition, the use of "and/or" in the specification and claims means at least one of the connected objects, such as A and/or B, which means that A and B alone are included, and there are three cases for both A and B.
在本发明实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本发明实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。In the embodiments of the present invention, words such as "exemplary" or "for example" are used to represent examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.
下面结合附图介绍本发明的实施例。本发明实施例提供的上行资源确定方法、指示方法、终端和网络设备可以应用于无线通信系统中。该无线通信系统可以为新空口(New Radio,NR)系统,或者其他系统,例如:演进型长期演进(Evolved Long Term Evolution,eLTE)系统或者长期演进(Long Term Evolution,LTE)系统,或者后续演进通信系统等。进一步,可以应用于上述无线通信系统中的非授权频段(Unlicensed Band)。The embodiments of the present invention will be described below in conjunction with the drawings. The uplink resource determination method, indication method, terminal, and network device provided in the embodiments of the present invention can be applied to a wireless communication system. The wireless communication system can be a New Radio (NR) system, or other systems, such as: Evolved Long Term Evolution (eLTE) system or Long Term Evolution (LTE) system, or subsequent evolution Communication system, etc. Further, it can be applied to the unlicensed band (Unlicensed Band) in the above-mentioned wireless communication system.
请参见图1,图1是本发明实施例可应用的一种网络系统的结构图,如图1所示,包括终端11和网络设备12,其中,终端11可以是用户终端(User Equipment,UE)或者其他终端侧设备,例如:手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant,PDA)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或者机器人等终端侧设备,需要说明的是,在本发明实施例中并不限定终端11的具体类型。上述网络设备12可以是4G基站,或者5G基站,或者以后版本的基站,或者其他通信系统中的基站,或者称之为节点B,演进节点B,或者传输接收点(Transmission Reception Point,TRP),或者接入点(Access Point,AP),或者所述领域中其他词汇,只要达到相同的技术效果,所述网络设备不限于特定技术词汇。另外,上述网络设备12可以是主节点(Master Node,MN),或者辅节点(Secondary Node,SN)。需要说明的是,在本发明实施例中仅以5G基站为例,但是并不限定网络设备的具体类型。Please refer to FIG. 1. FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present invention. As shown in FIG. 1, it includes a terminal 11 and a network device 12. The terminal 11 may be a User Equipment (UE). ) Or other terminal side devices, such as: mobile phones, tablet computers (Tablet Personal Computer), laptop computers (Laptop Computer), personal digital assistants (personal digital assistant, PDA), mobile Internet devices (Mobile Internet Device, MID), For terminal-side devices such as wearable devices (Wearable Devices) or robots, it should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present invention. The aforementioned network device 12 may be a 4G base station, or a 5G base station, or a base station of a later version, or a base station in other communication systems, or it is called Node B, Evolved Node B, or Transmission Reception Point (TRP), Or access point (Access Point, AP), or other vocabulary in the field, as long as the same technical effect is achieved, the network device is not limited to a specific technical vocabulary. In addition, the aforementioned network device 12 may be a master node (Master Node, MN) or a secondary node (Secondary Node, SN). It should be noted that, in the embodiment of the present invention, only a 5G base station is taken as an example, but the specific type of network equipment is not limited.
请参见图2,图2是本申请实施例提供的一种信息获取方法的流程图,该方法应用于终端,如图2所示,包括以下步骤:Please refer to FIG. 2. FIG. 2 is a flowchart of an information acquisition method provided by an embodiment of the present application. The method is applied to a terminal, as shown in FIG. 2, and includes the following steps:
步骤201、获取HARQ-ACK相关信息,所述HARQ-ACK相关信息用于所述终端的组播PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:Step 201: Obtain HARQ-ACK related information, where the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, where the HARQ-ACK related information includes at least one of the following:
所述终端检测到的单播DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast DCI detected by the terminal;
所述终端预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
其中,上述获取HARQ-ACK相关信息可以包括如下至少一项:Wherein, the foregoing obtaining HARQ-ACK related information may include at least one of the following:
接收网络设备发送的HARQ-ACK相关信息;Receive HARQ-ACK related information sent by network equipment;
读取预先获取的HARQ-ACK相关信息。Read the HARQ-ACK related information obtained in advance.
在本申请实施例中,HARQ-ACK相关信息可以是指用于HARQ-ACK反馈的相关信息,例如:用于确定反馈HARQ-ACK的时域、频域、空域资源,比特数,传输功率等相关信息。In the embodiments of the present application, HARQ-ACK related information may refer to related information used for HARQ-ACK feedback, for example: used to determine the time domain, frequency domain, and space domain resources for feeding back HARQ-ACK, number of bits, transmission power, etc. Related Information.
另外,步骤201获取的第一HARQ-ACK相关信息包括上述第一HARQ-ACK相关信息和上述第二HARQ-ACK相关信息中的至少一项可以理解为:In addition, the first HARQ-ACK related information obtained in step 201 includes at least one of the foregoing first HARQ-ACK related information and the foregoing second HARQ-ACK related information can be understood as:
步骤201获取的第一HARQ-ACK相关信息包括上述第一HARQ-ACK相关信息;The first HARQ-ACK related information acquired in step 201 includes the foregoing first HARQ-ACK related information;
或者,步骤201获取的第一HARQ-ACK相关信息包括上述第二HARQ-ACK相关信息;Or, the first HARQ-ACK related information obtained in step 201 includes the foregoing second HARQ-ACK related information;
或者,步骤201获取的第一HARQ-ACK相关信息包括上述第一HARQ-ACK相关信息和上述第二HARQ-ACK相关信息。该情况下,上述第一HARQ-ACK相关信息和上述第二HARQ-ACK相关信息可以不存在交集,当然,对此不作限定,也可以存在交集,当存在交集时可以预先定义这些交集的优先级,如预先定义单播DCI包括的HARQ-ACK相关信息的优先级高于预先获取的HARQ-ACK相关信息。Alternatively, the first HARQ-ACK related information obtained in step 201 includes the foregoing first HARQ-ACK related information and the foregoing second HARQ-ACK related information. In this case, the above-mentioned first HARQ-ACK related information and the above-mentioned second HARQ-ACK related information may not have an intersection. Of course, this is not limited, and there may also be an intersection. When there is an intersection, the priority of these intersections can be predefined For example, the HARQ-ACK related information included in the predefined unicast DCI has a higher priority than the pre-acquired HARQ-ACK related information.
上述预先获取的HARQ-ACK相关信息可以是,协议预先定义或者网络侧预先配置给终端的HARQ-ACK相关信息。The above-mentioned pre-acquired HARQ-ACK related information may be HARQ-ACK related information pre-defined by the protocol or pre-configured by the network side to the terminal.
另外,上述终端的组播PDSCH可以是一个或者多个组播PDSCH,且这些PDSCH的HARQ-ACK可以是相同或者不同的资源上反馈。例如:均在上 述第一HARQ-ACK相关信息对应一个资源上反馈,或者多个组播PDSCH分别在上述第一HARQ-ACK相关信息对应的多个资源上反馈,如在多个时隙上反馈。In addition, the multicast PDSCH of the aforementioned terminal may be one or more multicast PDSCHs, and the HARQ-ACK of these PDSCHs may be fed back on the same or different resources. For example: all are fed back on one resource corresponding to the above-mentioned first HARQ-ACK related information, or multiple multicast PDSCHs are fed back on multiple resources corresponding to the above-mentioned first HARQ-ACK related information, such as feedback on multiple time slots .
本申请中通过上述步骤可以实现端获取上述HARQ-ACK相关信息,使得终端可以支持组播业务的HARQ-ACK反馈,进而提高组播业务传输的可靠性。In this application, through the above steps, the terminal can obtain the HARQ-ACK related information, so that the terminal can support the HARQ-ACK feedback of the multicast service, thereby improving the reliability of the multicast service transmission.
另外,本申请中,由于可以包括单播DCI的第一HARQ-ACK相关信息,这样可以使得接收组播PDSCH的多个终端可以在不同的时间单元反馈HARQ-ACK,达到HARQ-ACK荷载均衡的效果。In addition, in this application, since the first HARQ-ACK related information of unicast DCI can be included, multiple terminals receiving multicast PDSCH can feed back HARQ-ACK in different time units, so as to achieve HARQ-ACK load balance. Effect.
需要说明的是,上述单播DCI可以是一个或者多个DCI。It should be noted that the foregoing unicast DCI may be one or more DCIs.
作为一种可选的实施方式,上述单播DCI包括:调度所述组播PDSCH的组播DCI之后所述终端检测到的第一个单播DCI。As an optional implementation manner, the foregoing unicast DCI includes: the first unicast DCI detected by the terminal after the multicast DCI of the multicast PDSCH is scheduled.
其中,上述组播DCI可以是步骤201中终端的组播PDSCH的全部DCI,例如:步骤201中的组播PDSCH为多个,则该实施方式的组播DCI是指调度这多个组播PDSCH的一个或者多个DCI。Wherein, the foregoing multicast DCI may be all the DCIs of the multicast PDSCH of the terminal in step 201. For example, if there are multiple multicast PDSCHs in step 201, the multicast DCI in this embodiment refers to scheduling these multiple multicast PDSCHs. Of one or more DCIs.
该实施方式中,由于单播DCI包括组播DCI之后所述终端检测到的第一个单播DCI,这样可以使得终端可以准确、及时地确定组播PDSCH的第一HARQ-ACK相关信息。例如:某两个组播PDSCH的组播DCI在第一单播DCI之前,另两个组播PDSCH的组播DCI在第一单播DCI之后,在第二单播DCI之前,则前面两个组播PDSCH的第一HARQ-ACK相关信息为第一单播DCI中的HARQ-ACK相关信息,后两个组播PDSCH的第一HARQ-ACK相关信息为第二单播DCI中的HARQ-ACK相关信息。In this embodiment, since the unicast DCI includes the first unicast DCI detected by the terminal after the multicast DCI, the terminal can accurately and timely determine the first HARQ-ACK related information of the multicast PDSCH. For example: the multicast DCI of two multicast PDSCHs is before the first unicast DCI, and the multicast DCI of the other two multicast PDSCHs is after the first unicast DCI, and before the second unicast DCI, then the first two The first HARQ-ACK related information of the multicast PDSCH is the HARQ-ACK related information in the first unicast DCI, and the first HARQ-ACK related information of the last two multicast PDSCHs is the HARQ-ACK in the second unicast DCI Related Information.
作为一种可选的实施方式,上述单播DCI包括:所述组播PDSCH之后(例如DCI的起始或结束符号中的至少一项在所述组播PDSCH的开始符号或结束符号之后)所述终端检测到的第一个单播DCI。该方法可以适用于组播PDSCH没有对应的调度DCI的情况,例如组播PDSCH按照高层配置(如根据SPS PDSCH,或MBSFN确定组播PDSCH的传输时频资源)在特定的时频域传输的情况。As an optional implementation manner, the above unicast DCI includes: after the multicast PDSCH (for example, at least one of the start symbol or the end symbol of the DCI is after the start symbol or the end symbol of the multicast PDSCH) The first unicast DCI detected by the terminal. This method can be applied to the situation that the multicast PDSCH does not have a corresponding scheduling DCI, for example, the multicast PDSCH is transmitted in a specific time-frequency domain according to the high-level configuration (such as determining the transmission time-frequency resource of the multicast PDSCH according to SPS PDSCH or MBSFN) .
作为一种可选的实施方式,上述第一HARQ-ACK相关信息包括如下至 少一项:As an optional implementation manner, the foregoing first HARQ-ACK related information includes at least one of the following:
下行分配指示(Downlink Assignment Index,DAI)、反馈定时指示、PUCCH资源指示(PUCCH Resource Indicator,PRI)、发射功率指示、优先级指示(priority indicator)。Downlink assignment indicator (Downlink Assignment Index, DAI), feedback timing indicator, PUCCH resource indicator (PUCCH Resource Indicator, PRI), transmit power indicator, priority indicator (priority indicator).
其中,上述DAI可以包括计数DAI(counting DAI,C-DAI),以及还可以包括总DAI(total DAI,T-DAI),或者可以是只包括T-DAI。Wherein, the above DAI may include counting DAI (counting DAI, C-DAI), and may also include total DAI (T-DAI), or may include only T-DAI.
上述反馈定时指示可以指示HARQ-ACK的反馈时间,例如:可以包括PDSCH到HARQ反馈时间指示(PDSCH-to-HARQ_feedback timing indicator),即k1指示,如k1指示PDSCH与对应的HARQ-ACK之间的时间间隔。The above feedback timing indicator can indicate the HARQ-ACK feedback time, for example, it can include the PDSCH-to-HARQ feedback timing indicator (PDSCH-to-HARQ_feedback timing indicator), that is, the k1 indicator, such as k1 indicating the difference between the PDSCH and the corresponding HARQ-ACK time interval.
上述发射功率指示可以指示HARQ-ACK反馈的功率指示,如包括发射功率控制(transmit power control,TPC)指示。The foregoing transmit power indicator may indicate the power indicator fed back by the HARQ-ACK, for example, includes a transmit power control (transmit power control, TPC) indicator.
上述优先级指示可以指示HARQ-ACK的优先级。The foregoing priority indication may indicate the priority of HARQ-ACK.
需要说明的是,如果第一HARQ-ACK相关信息只包括上述DAI、反馈定时指示、PRI、发射功率指示、优先级指示中的部分时,另一部分指示可以者通过所述组播PDSCH的DCI指示或者预先配置,或者协议约定,如通过上述第二HARQ-ACK相关信息配置。It should be noted that if the first HARQ-ACK related information only includes part of the above DAI, feedback timing indicator, PRI, transmit power indicator, and priority indicator, the other part of the indicator can be indicated by the DCI of the multicast PDSCH. Either pre-configured, or agreed by agreement, such as configured through the above-mentioned second HARQ-ACK related information.
另外,上述至少一项可以是由一个或者多个DCI包括,例如:一个DCI包括上述DAI,另一个DCI包括反馈定时指示、PRI、发射功率指示、优先级指示中的至少一项。In addition, the foregoing at least one item may be included by one or more DCIs. For example, one DCI includes the foregoing DAI, and the other DCI includes at least one of a feedback timing indicator, a PRI, a transmit power indicator, and a priority indicator.
可选的,所述DAI包括:Optionally, the DAI includes:
第一比特和/或第二比特,其中,所述第一比特用于指示单播PDSCH,所述第二比特用于指示组播PDSCH;或者The first bit and/or the second bit, wherein the first bit is used to indicate unicast PDSCH, and the second bit is used to indicate multicast PDSCH; or
第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
其中,上述指示单播PDSCH可以是,指示单播PDSCH的调度,上述指示组播PDSCH可以是,指示组播PDSCH的调度。Wherein, the above-mentioned indication of unicast PDSCH may be an indication of scheduling of unicast PDSCH, and the above-mentioned indication of multicast PDSCH may be an indication of scheduling of multicast PDSCH.
上述联合指示单播PDSCH和组播PDSCH可以是,以联合指示的方式分别指示单播PDSCH调度和组播PDSCH,或者指示单播PDSCH和组播PDSCH的和。The above-mentioned joint indication of unicast PDSCH and multicast PDSCH may be respectively indicating unicast PDSCH scheduling and multicast PDSCH in a joint indication manner, or indicating the sum of unicast PDSCH and multicast PDSCH.
例如:单播DCI中包含X比特DAI,用于指示单播PDSCH的调度,DCI 中还包括Y比特DAI用于组播PDSCH调度,或者,单播DCI中包含Z比特DAI,用于指示单播PDSCH和组播PDSCH调度。For example: Unicast DCI contains X bits of DAI to indicate unicast PDSCH scheduling, and DCI also contains Y bits of DAI for multicast PDSCH scheduling, or unicast DCI contains Z bits of DAI to indicate unicast PDSCH and multicast PDSCH scheduling.
可选的,若所述终端的至少一个组播PDSCH的HARQ-ACK复用在物理上行共享信道(Physical uplink shared channel,PUSCH)上传输,则所述单播DCI包括调度所述PUSCH的DCI。Optionally, if the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on a physical uplink shared channel (PUSCH) for transmission, the unicast DCI includes the DCI for scheduling the PUSCH.
其中,上述HARQ-ACK复用在物理上行共享信道PUSCH上传输的至少一个组播PDSCH可以是步骤201中的部分或者全部组播PDSCH。Wherein, the at least one multicast PDSCH that the HARQ-ACK is multiplexed on the physical uplink shared channel PUSCH for transmission may be part or all of the multicast PDSCH in step 201.
该实施方式中,可以实现组播PDSCH的HARQ-ACK复用PUSCH上传输时,HARQ-ACK相关信息包括调度所述PUSCH的DCI的HARQ-ACK相关信息,这样可以使得PDSCH的HARQ-ACK正确复用在PUSCH上传输,避免基站和终端对HARQ-ACK比特数理解不一致,从而提高通信系统的有效性和可靠性。In this embodiment, when the HARQ-ACK of the multicast PDSCH is multiplexed and transmitted on the PUSCH, the HARQ-ACK related information includes the HARQ-ACK related information of the DCI that schedules the PUSCH, so that the HARQ-ACK of the PDSCH can be correctly replicated. It is used for transmission on PUSCH to avoid inconsistent understanding of HARQ-ACK bits between base station and terminal, thereby improving the effectiveness and reliability of the communication system.
可选的,步骤201中的第一HARQ-ACK相关信息可以由上述调度所述PUSCH的DCI包含,也可以是由上述调度所述PUSCH的DCI和调度所述组播PDSCH的组播DCI之后所述终端检测到的第一个单播DCI共同包含,如调度所述PUSCH的DCI包含上述T-DAI,而上述第一个单播DCI包含反馈定时指示、PRI、发射功率指示、优先级指示中的至少一项。即可以使用多个DCI包括的HARQ-ACK相关信息进行HARQ-ACK反馈,保证HARQ-ACK信息的正确反馈。Optionally, the first HARQ-ACK related information in step 201 may be included in the above-mentioned DCI for scheduling the PUSCH, or may be included after the above-mentioned DCI for scheduling the PUSCH and the multicast DCI for scheduling the multicast PDSCH. The first unicast DCI detected by the terminal is included together. For example, the DCI that schedules the PUSCH includes the above-mentioned T-DAI, and the above-mentioned first unicast DCI includes feedback timing indication, PRI, transmit power indication, and priority indication. At least one of. That is, HARQ-ACK related information included in multiple DCIs can be used for HARQ-ACK feedback to ensure correct feedback of HARQ-ACK information.
需要说明的是,上述至少一个组播PDSCH的HARQ-ACK复用在上传输可以是,终端将上述至少一个组播PDSCH的HARQ-ACK复用在上传输,从而上述实施方式可以理解为如下:It should be noted that, the HARQ-ACK of the at least one multicast PDSCH may be multiplexed for transmission, and the terminal may multiplex the HARQ-ACK of the at least one multicast PDSCH for transmission, so the foregoing implementation manner can be understood as follows:
若所述终端将至少一个组播PDSCH的HARQ-ACK复用在PUSCH上传输,且所述单播DCI包括调度所述PUSCH的DCI,则所述终端检测到的单播DCI中的第一HARQ-ACK相关信息包括该DAI指示信息,且该DAI指示信息可以包括:If the terminal multiplexes the HARQ-ACK of at least one multicast PDSCH on the PUSCH for transmission, and the unicast DCI includes the DCI for scheduling the PUSCH, the first HARQ in the unicast DCI detected by the terminal -ACK related information includes the DAI indication information, and the DAI indication information may include:
第一比特和第二比特,其中,所述第一比特用于指示单播PDSCH,所述第二比特用于指示组播PDSCH;或者The first bit and the second bit, wherein the first bit is used to indicate unicast PDSCH, and the second bit is used to indicate multicast PDSCH; or
第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
另外,由于上述单播DCI包括调度PUSCH传输的DCI,这样可以在DCI即上行授权(UL grant)中只包含T-DAI,不包含其他的信息。例如:对于UL grant中的T-DAI,可以考虑终端只有组播PDSCH,没有单播下行调度的场景,即没有第一比特,只有第二比特,或者是第三比特。In addition, since the aforementioned unicast DCI includes the DCI for scheduling PUSCH transmission, in this way, only T-DAI may be included in the DCI, that is, an uplink grant (UL grant), and no other information may be included. For example, for the T-DAI in the UL grant, a scenario where the terminal only has multicast PDSCH and no unicast downlink scheduling can be considered, that is, there is no first bit, only the second bit, or the third bit.
进一步的,上述实施方式中,调度所述PUSCH的DCI可以是非回退(non-fallback)DCI,且该DCI可以只包括T-DAI,不包括C-DAI。且组播PDSCH的HARQ-ACK可以复用在上述PUSCH上传输。Further, in the foregoing implementation manner, the DCI for scheduling the PUSCH may be a non-fallback DCI, and the DCI may include only T-DAI but not C-DAI. In addition, the HARQ-ACK of the multicast PDSCH can be multiplexed on the PUSCH for transmission.
可选的,在所述终端的组播PDSCH对应Q个不同的无线网络临时标识(Radio network temporary identifier,RNTI)的情况下:Optionally, in the case that the multicast PDSCH of the terminal corresponds to Q different radio network temporary identifiers (RNTI):
所述第二比特包括Q个比特组,所述Q个比特组分别用于指示所述Q个RNTI对应的组播PDSCH;The second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
其中,Q为大于或者等于1的整数,或者,Q为大于或者等于1,且小于或者等于预设阈值的整数。Wherein, Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
其中,上述终端的组播PDSCH对应Q个不同的RNTI可以是,终端的T个组播PDSCH对应Q个不同的RNTI,其中,T为大于或者等于Q的整数,即可以存在多个组播PDSCH同一的RNTI的情况。Wherein, the multicast PDSCH of the terminal above corresponds to Q different RNTIs, and the T multicast PDSCHs of the terminal correspond to Q different RNTIs, where T is an integer greater than or equal to Q, that is, there may be multiple multicast PDSCHs. The same RNTI situation.
另外,上述RNTI可以是组无线网络临时标识(Group Radio network temporary identifier,g-RNTI)。In addition, the foregoing RNTI may be a group radio network temporary identifier (g-RNTI).
例如:上述第二比特比特包含N 1,N 2,…,N Q个T-DAI分别对应不同RNTI对应的组播PDSCH。 For example, the above-mentioned second bit contains N 1 , N 2 , ..., N Q T-DAIs respectively corresponding to the multicast PDSCHs corresponding to different RNTIs.
进一步的,上述Q可以是小于或者等于一定的阈值。Further, the aforementioned Q may be less than or equal to a certain threshold.
可选的,所述DAI指示PDSCH的方式由高层信令配置。Optionally, the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
即上述DAI包括第一比特,或者上述DAI包括第一比特和第二比特,或者上述DAI包括第三比特等方式可以由高层信令配置具体采用哪种方式,当然,对此不作限定,也可以协议约定。That is, the above-mentioned DAI includes the first bit, or the above-mentioned DAI includes the first bit and the second bit, or the above-mentioned DAI includes the third bit, etc. can be configured by higher-layer signaling. Of course, this is not limited, and it can be Agreement stipulated.
作为一种可选的实施方式,所述终端预先获取的第二HARQ-ACK相关信息包括:高层信令配置第二HARQ-ACK相关信息,或者预定义的第二HARQ-ACK相关信息;As an optional implementation manner, the second HARQ-ACK related information obtained by the terminal in advance includes: second HARQ-ACK related information configured by higher layer signaling, or predefined second HARQ-ACK related information;
或者,or,
所述终端隐式确定的第二HARQ-ACK相关信息包括:按照所述组播PDSCH的业务类型或业务优先级确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information implicitly determined by the terminal includes: the second HARQ-ACK related information determined according to the service type or service priority of the multicast PDSCH.
其中,上述第二HARQ-ACK相关信息可以包括:所述组播PDSCH的HARQ-ACK的优先级,如组播PDSCH的HARQ-ACK对应的码本(codebook)优先级索引。当然,对此不作限定,例如:可以包括PRI。Wherein, the foregoing second HARQ-ACK related information may include: the HARQ-ACK priority of the multicast PDSCH, such as a codebook priority index corresponding to the HARQ-ACK of the multicast PDSCH. Of course, this is not limited, for example: PRI can be included.
例如:终端可以根据高层信令配置确定组播PDSCH的HARQ-ACK对应的codebook优先级索引;或者,预定义组播PDSCH的HARQ-ACK对应的codebook优先级索引,例如低优先级,或者,根据终端上报的PDSCH对应的业务类型或者业务优先级确定组播PDSCH的HARQ-ACK的codebook优先级索引。For example, the terminal may determine the codebook priority index corresponding to HARQ-ACK of the multicast PDSCH according to the high-level signaling configuration; or, pre-define the codebook priority index corresponding to the HARQ-ACK of the multicast PDSCH, such as low priority, or according to The service type or service priority corresponding to the PDSCH reported by the terminal determines the codebook priority index of the HARQ-ACK of the multicast PDSCH.
另外,上述按照所述组播PDSCH的业务类型确定的第二HARQ-ACK相关信息可以是,根据预先获取的业务类型或业务优先级与HARQ-ACK相关信息的对应关系确定按照所述组播PDSCH的业务类型确定的第二HARQ-ACK相关信息。In addition, the foregoing second HARQ-ACK related information determined according to the service type of the multicast PDSCH may be determined according to the corresponding relationship between the service type or service priority obtained in advance and the HARQ-ACK related information according to the multicast PDSCH The second HARQ-ACK related information determined by the service type.
该实施方式中,由于第二HARQ-ACK相关信息可以提前获取,从而可以节约传输开销。In this implementation manner, since the second HARQ-ACK related information can be obtained in advance, transmission overhead can be saved.
作为一种可选的实施方式,上述方法还包括:As an optional implementation manner, the above method further includes:
按照所述HARQ-ACK相关信息,进行所述组播PDSCH的HARQ-ACK反馈。Perform HARQ-ACK feedback of the multicast PDSCH according to the HARQ-ACK related information.
上述按照所述HARQ-ACK相关信息,进行所述组播PDSCH的HARQ-ACK反馈可以是,按照所述HARQ-ACK相关信息确定组播PDSCH的HARQ-ACK的反馈资源、优先级等信息,之后基于确定的这些信息进行所述组播PDSCH的HARQ-ACK反馈,以提高组播PDSCH的传输可靠性。According to the HARQ-ACK related information, the HARQ-ACK feedback of the multicast PDSCH may be determined by determining the HARQ-ACK feedback resource, priority and other information of the multicast PDSCH according to the HARQ-ACK related information, and then The HARQ-ACK feedback of the multicast PDSCH is performed based on the determined information, so as to improve the transmission reliability of the multicast PDSCH.
作为一种可选的实施方式,调度所述组播PDSCH的组播DCI不包括所述HARQ-ACK相关信息。As an optional implementation manner, the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
其中,组播DCI不包括所述HARQ-ACK相关信息可以是,组播DCI不包括步骤201包括的HARQ-ACK相关信息中的相关内容。Wherein, the multicast DCI does not include the HARQ-ACK related information may be that the multicast DCI does not include related content in the HARQ-ACK related information included in step 201.
例如:组播PDSCH的DAI由单播DCI中的DAI指示得到,组播DCI中不包含DAI指示。For example, the DAI of the multicast PDSCH is obtained from the DAI indication in the unicast DCI, and the multicast DCI does not include the DAI indication.
又例如:组播PDSCH的k1由该组播DCI后的最近一个单播DCI中的k1指示得到,其中,组播DCI中不包含反馈定时指示域(例如:PDSCH-to-HARQ_feedback timing indicator field)。这样,终端可以将组播PDSCH对应的HARQ-ACK在时隙n传输,其中时隙n根据单播DCI中的反馈定时指示域指示,该单播DCI具体可以为组播DCI之后的任意一个PDCCH检测机会检测到的第一个单播DCI。For another example: the k1 of the multicast PDSCH is obtained by the k1 indication in the nearest unicast DCI after the multicast DCI, where the multicast DCI does not include the feedback timing indicator field (for example: PDSCH-to-HARQ_feedback timing indicator field) . In this way, the terminal can transmit the HARQ-ACK corresponding to the multicast PDSCH in the time slot n, where the time slot n is indicated according to the feedback timing indicator field in the unicast DCI, and the unicast DCI can be any PDCCH after the multicast DCI. The first unicast DCI detected by the detection opportunity.
又例如:UE根据单播DCI中的PRI指示确定反馈HARQ-ACK的PUCCH资源,其中,组播DCI中不包含PRI指示。这样,终端可以将组播PDSCH的HARQ-ACK在PUCCH1上传输,其中PUCCH1根据单播DCI中的PRI指示确定,该单播DCI包括组播DCI之后的任意一个PDCCH检测机会检测到的第一个单播DCI。For another example, the UE determines the PUCCH resource for feeding back HARQ-ACK according to the PRI indication in the unicast DCI, where the multicast DCI does not include the PRI indication. In this way, the terminal can transmit the HARQ-ACK of the multicast PDSCH on PUCCH1, where PUCCH1 is determined according to the PRI indication in the unicast DCI, and the unicast DCI includes the first one detected by any PDCCH detection opportunity after the multicast DCI. Unicast DCI.
又例如:终端根据单播DCI的优先级指示确定组播PDSCH的HARQ-ACK对应的codebook优先级索引,其中,组播DCI中不包含优先级指示域,且该单播DCI包括组播DCI之后的任意一个PDCCH检测机会检测到的第一个单播DCI。For another example: the terminal determines the codebook priority index corresponding to the HARQ-ACK of the multicast PDSCH according to the priority indication of the unicast DCI, where the priority indication field is not included in the multicast DCI, and the unicast DCI includes the multicast DCI The first unicast DCI detected by any one of the PDCCH detection opportunities.
本申请实施例中,获取HARQ-ACK相关信息,所述HARQ-ACK相关信息用于所述终端的组播PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:所述终端检测到的单播DCI包括的第一HARQ-ACK相关信息;所述终端预先获取或者隐式确定的第二HARQ-ACK相关信息。这样终端可以获取上述HARQ-ACK相关信息。且还可以使得终端可以支持组播业务的HARQ-ACK反馈,进而提高组播业务传输的可靠性。In the embodiment of the present application, HARQ-ACK related information is obtained, and the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast PDSCH of the terminal, where the HARQ-ACK related information includes at least one of the following: The first HARQ-ACK related information included in the unicast DCI detected by the terminal; the second HARQ-ACK related information obtained in advance or implicitly determined by the terminal. In this way, the terminal can obtain the aforementioned HARQ-ACK related information. And it can also enable the terminal to support the HARQ-ACK feedback of the multicast service, thereby improving the reliability of the multicast service transmission.
请参见图3,图3是本申请实施例提供的一种信息确定方法的流程图,该方法应用于网络设备,如图3所示,包括以下步骤:Please refer to FIG. 3, which is a flowchart of an information determination method provided by an embodiment of the present application. The method is applied to a network device. As shown in FIG. 3, it includes the following steps:
步骤301、确定HARQ-ACK相关信息,所述HARQ-ACK相关信息用于终端的组播道PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:Step 301: Determine HARQ-ACK related information, where the HARQ-ACK related information is used for HARQ-ACK feedback of the terminal's multicast channel PDSCH, where the HARQ-ACK related information includes at least one of the following:
向所述终端发送的单播DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast DCI sent to the terminal;
所述网络设备预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
可选的,所述单播DCI包括:调度所述组播PDSCH的组播DCI之后发 送给所述终端的第一个单播DCI。Optionally, the unicast DCI includes: the first unicast DCI sent to the terminal after the multicast DCI of the multicast PDSCH is scheduled.
可选的,所述第一HARQ-ACK相关信息包括如下至少一项:Optionally, the first HARQ-ACK related information includes at least one of the following:
下行分配指示DAI、反馈定时指示、PUCCH资源指示PRI、发射功率指示、优先级指示。Downlink allocation indicator DAI, feedback timing indicator, PUCCH resource indicator PRI, transmit power indicator, priority indicator.
可选的,所述DAI包括:Optionally, the DAI includes:
第一比特和/或第二比特,其中,所述第一比特用于指示单播道PDSCH,所述第二比特用于指示组播PDSCH;或者The first bit and/or the second bit, wherein the first bit is used to indicate a unicast channel PDSCH, and the second bit is used to indicate a multicast PDSCH; or
第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
可选的,所述终端的至少一个组播PDSCH的HARQ-ACK复用在物理上行共享信道PUSCH上传输,则所述单播DCI包括调度所述PUSCH的DCI。Optionally, the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on the physical uplink shared channel PUSCH for transmission, then the unicast DCI includes the DCI for scheduling the PUSCH.
可选的,在所述终端的组播PDSCH对应Q个不同的无线网络临时标识RNTI的情况下:Optionally, in the case that the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identifiers RNTI:
所述第二比特包括Q个比特组,所述Q个比特组分别用于指示所述Q个RNTI对应的组播PDSCH;The second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
其中,Q为大于或者等于1的整数,或者,Q为大于或者等于1,且小于或者等于预设阈值的整数。Wherein, Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
可选的,所述DAI指示PDSCH的方式由高层信令配置。Optionally, the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
可选的,所述网络设备预先获取的第二HARQ-ACK相关信息包括:高层信令配置第二HARQ-ACK相关信息,或者预定义的第二HARQ-ACK相关信息;Optionally, the second HARQ-ACK related information obtained by the network device in advance includes: high-layer signaling configuration second HARQ-ACK related information, or predefined second HARQ-ACK related information;
或者,or,
所述网络设备预隐式确定的第二HARQ-ACK相关信息包括:按照所述组播PDSCH的业务类型确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information implicitly determined by the network device includes: the second HARQ-ACK related information determined according to the service type of the multicast PDSCH.
可选的,所述第二HARQ-ACK相关信息包括:所述组播PDSCH的HARQ-ACK的优先级。Optionally, the second HARQ-ACK related information includes: the HARQ-ACK priority of the multicast PDSCH.
可选的,所述方法还包括:Optionally, the method further includes:
按照所述HARQ-ACK相关信息,接收所述组播PDSCH的HARQ-ACK反馈。According to the HARQ-ACK related information, the HARQ-ACK feedback of the multicast PDSCH is received.
可选的,调度所述组播PDSCH的组播DCI不包括所述HARQ-ACK相 关信息。Optionally, the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
需要说明的是,本实施例作为与图2所示的实施例中对应的网络设备侧的实施方式,其具体的实施方式可以参见图2所示的实施例的相关说明,以为避免重复说明,本实施例不再赘述。本实施例中,同样可以使得终端获取HARQ-ACK相关信息。It should be noted that this embodiment is used as an implementation on the network device side corresponding to the embodiment shown in FIG. This embodiment will not be repeated. In this embodiment, the terminal can also obtain HARQ-ACK related information.
下面以通过多个实施例对本申请实施例提供的信息获取方法进行举例说明,可以包括以下:The following uses multiple embodiments to illustrate the information acquisition method provided by the embodiments of the present application, which may include the following:
实施例1:如图4所示,DCI 1-4分别调度PDSCH 1-4,其中DCI 1-2为组播DCI,调度组播PDSCH 1-2,DCI 3-4为单播DCI,调度单播PDSCH3-4。Embodiment 1: As shown in Figure 4, DCI 1-4 schedule PDSCH 1-4 respectively, where DCI 1-2 is multicast DCI, multicast PDSCH 1-2 is scheduled, DCI 3-4 is unicast DCI, and the scheduling list Broadcast PDSCH3-4.
其中,组播DCI 1-2中不包含DAI指示,调度的PDSCH的DAI信息根据之后的第一个单播DCI得到。如图4中,DCI3中包含2比特C-DAI或者T-DAI用于指示组播PDSCH,C-DAI或者T-DAI值为2,表示到当前PDCCH接收机会调度了两个组播PDSCH。同时单播DCI中还包含2比他C-DAI用于单播PDSCH,C-DAI值为1,表示当前调度的单播PDSCH为第一个单播PDSCH。Among them, the multicast DCI 1-2 does not include the DAI indication, and the DAI information of the scheduled PDSCH is obtained according to the first unicast DCI afterwards. As shown in Figure 4, DCI3 contains 2-bit C-DAI or T-DAI to indicate multicast PDSCH, and the value of C-DAI or T-DAI is 2, which means that the current PDCCH receiver will schedule two multicast PDSCHs. At the same time, the unicast DCI also contains 2 bit C-DAI for unicast PDSCH, and the C-DAI value is 1, indicating that the currently scheduled unicast PDSCH is the first unicast PDSCH.
另外,组播DCI 1-2中可以不包含PDSCH到HARQ-ACK反馈定时指示信息,其定时指示信息根据之后的第一个单播DCI得到,如图4中,DCI3中的PDSCH到HARQ-ACK反馈定时指示信息的值(k1)为2,则表示结束符号在时隙n的PDSCH3在时隙n+2反馈,且UE将在n+2时隙反馈PDSCH 1和PDSCH2的HARQ-ACK,也就是说,UE根据DCI3中的PDSCH到HARQ-ACK反馈定时指示信息确定反馈PDSCH1和PDSCH2的HARQ-ACK的时隙。In addition, multicast DCI 1-2 may not include PDSCH to HARQ-ACK feedback timing indication information. The timing indication information is obtained from the first unicast DCI afterwards. As shown in Figure 4, PDSCH to HARQ-ACK in DCI3 The value of the feedback timing indication information (k1) is 2, which means that the end symbol is fed back in the PDSCH3 of the time slot n in the time slot n+2, and the UE will feedback the HARQ-ACK of the PDSCH 1 and PDSCH2 in the time slot n+2, and also That is, the UE determines the time slot for feeding back the HARQ-ACK of PDSCH1 and PDSCH2 according to the PDSCH to HARQ-ACK feedback timing indication information in DCI3.
另外,组播DCI 1-2中还可以不包含PRI指示信息,终端根据单播DCI的指示确定反馈HARQ-ACK的PUCCH资源。如图4中,如果没有DCI 4,则终端根据DCI3的指示确定反馈PDSCH1、PDSCH2、PDSCH3的PUCCH资源。如图4中,终端在时隙n+2中反馈PDSCH 1、PDSCH 2、PDSCH 3和PDSCH 4的HARQ-ACK,则终端根据单播DCI中的最后一个DCI(last DCI)的PRI和或控制信道单元索引(Control Channel Elements index,CCE index) 确定反馈HARQ-ACK的PUCCH资源。同理,组播DCI中可以不包含TPC指示信息,终端根据单播DCI中的TPC确定PUCCH的传输功率。In addition, the multicast DCI 1-2 may not include PRI indication information, and the terminal determines the PUCCH resource for feeding back HARQ-ACK according to the unicast DCI indication. As shown in Figure 4, if there is no DCI 4, the terminal determines to feed back the PUCCH resources of PDSCH1, PDSCH2, and PDSCH3 according to the indication of DCI3. As shown in Figure 4, the terminal feeds back the HARQ-ACK of PDSCH 1, PDSCH 2, PDSCH 3, and PDSCH 4 in time slot n+2, and the terminal controls the PRI and OR of the last DCI (last DCI) in unicast DCI. The channel element index (Control Channel Elements index, CCE index) determines the PUCCH resource for HARQ-ACK feedback. Similarly, the multicast DCI may not include TPC indication information, and the terminal determines the transmission power of the PUCCH according to the TPC in the unicast DCI.
另外,终端在时隙n+2反馈PDSCH 1-4的HARQ-ACK时,终端可以分别构建组播PDSCH1-2的HARQ-ACK(子)码本,以及单播PDSCH 3-4的HARQ-ACK(子)码本,并将两个(子)码本级联成一个码本。In addition, when the terminal feeds back the HARQ-ACK of the PDSCH 1-4 in the time slot n+2, the terminal can separately construct the HARQ-ACK (sub)codebook of the multicast PDSCH1-2 and the HARQ-ACK of the unicast PDSCH 3-4. (Sub)codebook, and concatenate two (sub)codebooks into one codebook.
另一种实施方式中,如图5所示,单播DCI中只包含一个DAI指示,用于指示单播和组播PDSCH调度,如图中DCI3中DAI=3,表示当前PDCCH接收机会当前DCI,共调度了3个PDSCH,即除当前DCI3调度的PDSCH3之外,DCI3前还调度了两个PDSCH,即PDSCH 1和PDSCH2。In another embodiment, as shown in FIG. 5, the unicast DCI contains only one DAI indicator, which is used to indicate unicast and multicast PDSCH scheduling. In the figure, DAI=3 in DCI3, which means that the current PDCCH receiver will be the current DCI , A total of 3 PDSCHs are scheduled, that is, in addition to the current PDSCH3 scheduled by DCI3, two PDSCHs are also scheduled before DCI3, namely PDSCH 1 and PDSCH2.
实施例2:Example 2:
如图6所示,终端在时隙n+2时隙反馈组播PDSCH 1-2和单播PDSCH3-4的HARQ-ACK,DCI 5调度的PUSCH与HARQ-ACK PUCCH资源重叠,终端将HARQ-ACK复用在PUSCH上传输。As shown in Figure 6, the terminal feeds back the HARQ-ACK of multicast PDSCH 1-2 and unicast PDSCH 3-4 in time slot n+2. The PUSCH scheduled by DCI 5 overlaps with HARQ-ACK PUCCH resources, and the terminal will HARQ- ACK is multiplexed and transmitted on PUSCH.
其中,DCI5可以包含T-DAI。一种实施方式中,DCI5中两个T-DAI,第一个DAI用于指示组播PDSCH,如图6中,如果第一个T-DAI=3,则表示终端要在当前时隙反馈三个组播PDSCH,终端根据C-DAI和T-DAI可以判断终端漏检了第三个组播DCI。DCI5中还包含第二个T-DAI,用于单播PDSCH,如图6中,如果第二个T-DAI=2,则表示UE在当前时隙反馈两个PDSCH,即PDSCH3和PDSCH4。Among them, DCI5 can include T-DAI. In one implementation, there are two T-DAIs in DCI5, and the first DAI is used to indicate multicast PDSCH. As shown in Figure 6, if the first T-DAI=3, it means that the terminal needs to feed back three times in the current time slot. According to the C-DAI and T-DAI, the terminal can determine that the terminal has missed the third multicast DCI. DCI5 also contains a second T-DAI for unicast PDSCH. As shown in Figure 6, if the second T-DAI=2, it means that the UE feeds back two PDSCHs in the current time slot, namely PDSCH3 and PDSCH4.
另一种实施方式中,UL grant中只包含一个T-DAI指示。一种方式中该T-DAI应用于组播PDSCH和单播PDSCH,表示在当前时隙反馈的组播PDSCH和单播PDSCH的总数目。该方式中,T-DAI只有一个,比特开销小,且避免了下行DCI漏检对PUSCH传输的影响。另一种方式中,该T-DAI应用于单播PDSCH,表示在当前时隙反馈的单播PDSCH的总数。另一种方式中该T-DAI应用于组播PDSCH,表示在当前时隙反馈的组播PDSCH的总数。In another implementation manner, only one T-DAI indication is included in the UL grant. In one mode, the T-DAI is applied to multicast PDSCH and unicast PDSCH, and represents the total number of multicast PDSCH and unicast PDSCH fed back in the current time slot. In this way, there is only one T-DAI, the bit overhead is small, and the impact of missed downlink DCI detection on PUSCH transmission is avoided. In another way, the T-DAI is applied to unicast PDSCH, which represents the total number of unicast PDSCH fed back in the current time slot. In another way, the T-DAI is applied to the multicast PDSCH, which represents the total number of multicast PDSCHs fed back in the current time slot.
另一种实施方式中,UL grant中针对组播PDSCH包含多个T-DAI指示。一种方式中T-DAI的个数根据UE配置的调度组播PDSCH的g-RNTI的个数确定或者根据高层信令确定。每个T-DAI对应一个g-RNTI,用于指示在该时隙反馈的该g-RNTI调度的PDSCH总数。In another implementation manner, the UL grant includes multiple T-DAI indications for the multicast PDSCH. In one mode, the number of T-DAIs is determined according to the number of g-RNTIs configured by the UE for scheduling multicast PDSCH or according to higher-layer signaling. Each T-DAI corresponds to a g-RNTI, which is used to indicate the total number of PDSCHs scheduled by the g-RNTI fed back in the time slot.
另外,上述UL grant的T-DAI指示方式,可以在组播DCI中有DAI指示时,可以是组播DCI中没有DAI指示,即UL grant中的DAI指示方式与组播DCI的DAI指示方式无关。In addition, the T-DAI indication mode of the UL grant can be when there is a DAI indication in the multicast DCI, or there is no DAI indication in the multicast DCI, that is, the DAI indication mode in the UL grant has nothing to do with the DAI indication mode of the multicast DCI .
实施例3:Example 3:
DCI在调度单播PDSCH时,还可以指示PDSCH的HARQ-ACK对应的codebook优先级索引,例如DCI中的priority indicator域指示。终端可以根据优先级索引指示确定HARQ-ACK属于哪个codebook,以及该HARQ-ACK PUCCH与其他上行传输时域资源冲突时,终端的处理方式(例如高优先级的HARQ-ACK PUCCH与低优先级的PUSCH冲突时,终端丢弃PUSCH,传输PUCCH,如果PUCCH和PUSCH具有相同优先级,则终端将UCI复用在PUSCH上传输)。对于组播PDSCH的HARQ-ACK对应的codebook优先级索引问题,可以通过如下任意方式指示:When the DCI schedules the unicast PDSCH, it can also indicate the codebook priority index corresponding to the HARQ-ACK of the PDSCH, such as the priority indicator field in the DCI. The terminal can determine which codebook the HARQ-ACK belongs to according to the priority index, and the processing method of the terminal when the HARQ-ACK PUCCH conflicts with other uplink transmission time domain resources (for example, HARQ-ACK PUCCH with high priority and PUCCH with low priority). When the PUSCH conflicts, the terminal discards the PUSCH and transmits the PUCCH. If the PUCCH and PUSCH have the same priority, the terminal multiplexes UCI on the PUSCH for transmission). The codebook priority index problem corresponding to the HARQ-ACK of the multicast PDSCH can be indicated in any of the following ways:
高层信令配置;High-level signaling configuration;
默认优先级(即预定义优先级索引);Default priority (i.e. pre-defined priority index);
组播PDSCH对应的DCI指示;The DCI indication corresponding to the multicast PDSCH;
通过组播PDSCH之后的单播DCI确定。Determined by unicast DCI after multicast PDSCH.
通过组播PDSCH对应的业务类型或业务优先级确定。The service type or service priority corresponding to the multicast PDSCH is determined.
需要说明的是,本申请实施例提供的信息获取方法,执行主体可以为信息获取装置,或者信息获取装置中的用于执行加载信息获取方法的控制模块。本申请实施例中以信息获取方法装置执行加载信息获取方法为例,说明本申请实施例提供的信息获取方法。以及本申请实施例提供的信息确定方法,执行主体可以为信息确定装置,或者信息确定装置中的用于执行加载信息确定方法的控制模块。本申请实施例中以信息确定装置执行加载信息确定方法为例,说明本申请实施例提供的信息确定方法。It should be noted that the execution subject of the information acquisition method provided in the embodiments of the present application may be an information acquisition device, or a control module in the information acquisition device for executing the method for acquiring loading information. In the embodiment of the present application, the method for acquiring the loaded information executed by the information acquisition method device is taken as an example to illustrate the information acquisition method provided by the embodiment of the present application. As for the information determination method provided in the embodiments of the present application, the execution subject may be an information determination device, or a control module in the information determination device for executing the method for determining loading information. In the embodiments of the present application, the method for determining loading information executed by the information determining apparatus is taken as an example to illustrate the information determining method provided in the embodiments of the present application.
请参见图7,图7是本申请实施例提供的一种信息获取装置的结构图,如图7所示,信息获取装置700包括:Please refer to FIG. 7. FIG. 7 is a structural diagram of an information acquisition device provided by an embodiment of the present application. As shown in FIG. 7, the information acquisition device 700 includes:
获取模块700,用于获取混合自动重传请求确认HARQ-ACK相关信息,所述HARQ-ACK相关信息用于所述终端的组播物理下行共享信道PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:The acquiring module 700 is configured to acquire HARQ-ACK related information of the hybrid automatic repeat request confirmation, and the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast physical downlink shared channel PDSCH of the terminal, wherein the HARQ -ACK related information includes at least one of the following:
所述终端检测到的单播下行控制信息DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast downlink control information DCI detected by the terminal;
所述终端预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
可选的,所述单播DCI包括:调度所述组播PDSCH的组播DCI之后所述终端检测到的第一个单播DCI。Optionally, the unicast DCI includes: the first unicast DCI detected by the terminal after the multicast DCI of the multicast PDSCH is scheduled.
可选的,所述第一HARQ-ACK相关信息包括如下至少一项:Optionally, the first HARQ-ACK related information includes at least one of the following:
下行分配指示DAI、反馈定时指示、PUCCH资源指示PRI、发射功率指示、优先级指示。Downlink allocation indicator DAI, feedback timing indicator, PUCCH resource indicator PRI, transmit power indicator, priority indicator.
可选的,所述DAI包括:Optionally, the DAI includes:
第一比特和/或第二比特,其中,所述第一比特用于指示单播PDSCH,所述第二比特用于指示组播PDSCH;或者The first bit and/or the second bit, wherein the first bit is used to indicate unicast PDSCH, and the second bit is used to indicate multicast PDSCH; or
第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
可选的,若所述终端的至少一个组播PDSCH的HARQ-ACK复用在物理上行共享信道PUSCH上传输,则所述单播DCI包括调度所述PUSCH的DCI。Optionally, if the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on the physical uplink shared channel PUSCH for transmission, the unicast DCI includes the DCI for scheduling the PUSCH.
可选的,在所述终端的组播PDSCH对应Q个不同的无线网络临时标识RNTI的情况下:Optionally, in the case that the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identifiers RNTI:
所述第二比特包括Q个比特组,所述Q个比特组分别用于指示所述Q个RNTI对应的组播PDSCH;The second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
其中,Q为大于或者等于1的整数,或者,Q为大于或者等于1,且小于或者等于预设阈值的整数。Wherein, Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
可选的,所述DAI指示PDSCH的方式由高层信令配置。Optionally, the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
可选的,所述终端预先获取的第二HARQ-ACK相关信息包括:高层信令配置第二HARQ-ACK相关信息,或者预定义的第二HARQ-ACK相关信息;Optionally, the second HARQ-ACK related information obtained by the terminal in advance includes: second HARQ-ACK related information configured by higher layer signaling, or predefined second HARQ-ACK related information;
或者,or,
所述终端隐式确定的第二HARQ-ACK相关信息包括:按照所述组播PDSCH的业务类型确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information implicitly determined by the terminal includes: the second HARQ-ACK related information determined according to the service type of the multicast PDSCH.
可选的,所述第二HARQ-ACK相关信息包括:所述组播PDSCH的HARQ-ACK的优先级。Optionally, the second HARQ-ACK related information includes: the HARQ-ACK priority of the multicast PDSCH.
可选的,如图8所示,所述装置包括:Optionally, as shown in FIG. 8, the device includes:
反馈模块702,用于按照所述HARQ-ACK相关信息,进行所述组播PDSCH的HARQ-ACK反馈。The feedback module 702 is configured to perform HARQ-ACK feedback of the multicast PDSCH according to the HARQ-ACK related information.
可选的,调度所述组播PDSCH的组播DCI不包括所述HARQ-ACK相关信息。Optionally, the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
本发明实施例提供的信息获取装置能够实现图2的方法实施例中的各个过程,为避免重复,这里不再赘述,且可以使得终端获取HARQ-ACK相关信息。The information acquisition device provided in the embodiment of the present invention can implement each process in the method embodiment of FIG.
需要说明的是,本申请实施例中的获取信息装置可以是装置,也可以是终端中的部件、集成电路、或芯片。It should be noted that the information acquiring device in the embodiment of the present application may be a device, or a component, an integrated circuit, or a chip in a terminal.
请参见图9,图9是本申请实施例提供的一种信息确定装置的结构图,如图9所示,信息确定装置900包括:Please refer to FIG. 9. FIG. 9 is a structural diagram of an information determining apparatus provided by an embodiment of the present application. As shown in FIG. 9, the information determining apparatus 900 includes:
确定模块901,用于确定混合自动重传请求确认HARQ-ACK相关信息,所述HARQ-ACK相关信息用于终端的组播物理下行共享信道PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:The determining module 901 is configured to determine the HARQ-ACK related information of the hybrid automatic repeat request confirmation, and the HARQ-ACK related information is used for HARQ-ACK feedback of the terminal's multicast physical downlink shared channel PDSCH, wherein the HARQ-ACK The relevant information includes at least one of the following:
向所述终端发送的单播下行控制信息DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast downlink control information DCI sent to the terminal;
所述网络设备预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
可选的,所述单播DCI包括:调度所述组播PDSCH的组播DCI之后发送给所述终端的第一个单播DCI。Optionally, the unicast DCI includes: the first unicast DCI sent to the terminal after the multicast DCI of the multicast PDSCH is scheduled.
可选的,所述第一HARQ-ACK相关信息包括如下至少一项:Optionally, the first HARQ-ACK related information includes at least one of the following:
下行分配指示DAI、反馈定时指示、PUCCH资源指示PRI、发射功率指示、优先级指示。Downlink allocation indicator DAI, feedback timing indicator, PUCCH resource indicator PRI, transmit power indicator, priority indicator.
可选的,所述DAI包括:Optionally, the DAI includes:
第一比特和/或第二比特,其中,所述第一比特用于指示单播道PDSCH,所述第二比特用于指示组播PDSCH;或者The first bit and/or the second bit, wherein the first bit is used to indicate a unicast channel PDSCH, and the second bit is used to indicate a multicast PDSCH; or
第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
可选的,所述终端的至少一个组播PDSCH的HARQ-ACK复用在物理上行共享信道PUSCH上传输,则所述单播DCI包括调度所述PUSCH的DCI。Optionally, the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on the physical uplink shared channel PUSCH for transmission, then the unicast DCI includes the DCI for scheduling the PUSCH.
可选的,在所述终端的组播PDSCH对应Q个不同的无线网络临时标识 RNTI的情况下:Optionally, in the case that the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identifiers RNTI:
所述第二比特包括Q个比特组,所述Q个比特组分别用于指示所述Q个RNTI对应的组播PDSCH;The second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
其中,Q为大于或者等于1的整数,或者,Q为大于或者等于1,且小于或者等于预设阈值的整数。Wherein, Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
可选的,所述DAI指示PDSCH的方式由高层信令配置。Optionally, the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
可选的,所述网络设备预先获取的第二HARQ-ACK相关信息包括:高层信令配置第二HARQ-ACK相关信息,或者预定义的第二HARQ-ACK相关信息;Optionally, the second HARQ-ACK related information obtained by the network device in advance includes: high-layer signaling configuration second HARQ-ACK related information, or predefined second HARQ-ACK related information;
或者,or,
所述网络设备预隐式确定的第二HARQ-ACK相关信息包括:按照所述组播PDSCH的业务类型确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information implicitly determined by the network device includes: the second HARQ-ACK related information determined according to the service type of the multicast PDSCH.
可选的,所述第二HARQ-ACK相关信息包括:所述组播PDSCH的HARQ-ACK的优先级。Optionally, the second HARQ-ACK related information includes: the HARQ-ACK priority of the multicast PDSCH.
可选的,如图10所示,所述装置还包括:Optionally, as shown in FIG. 10, the device further includes:
接收模块802,用于按照所述HARQ-ACK相关信息,接收所述组播PDSCH的HARQ-ACK反馈。The receiving module 802 is configured to receive HARQ-ACK feedback of the multicast PDSCH according to the HARQ-ACK related information.
可选的,调度所述组播PDSCH的组播DCI不包括所述HARQ-ACK相关信息。Optionally, the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
本发明实施例提供的信息确定装置能够实现图3的方法实施例中的各个过程,为避免重复,这里不再赘述,且可以使得终端获取HARQ-ACK相关信息。The information determining apparatus provided in the embodiment of the present invention can implement each process in the method embodiment of FIG. 3. To avoid repetition, details are not described here, and the terminal can obtain HARQ-ACK related information.
需要说明的是,本申请实施例中的获取确定装置可以是装置,也可以是网络设备中的部件、集成电路、或芯片。It should be noted that the obtaining and determining apparatus in the embodiment of the present application may be an apparatus, or a component, integrated circuit, or chip in a network device.
图11为实现本申请实施例的一种终端的硬件结构示意图。FIG. 11 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
该终端1100包括但不限于:射频单元1101、网络模块1102、音频输出单元1103、输入单元1104、传感器1105、显示单元1106、用户输入单元1107、接口单元1108、存储器1109、以及处理器1110等部件。The terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, a processor 1110 and other components .
本领域技术人员可以理解,终端1100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1110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11中示出的电子设备结构并不构成对电子设备的限定,电子设备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。Those skilled in the art can understand that the terminal 1100 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 1110 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions. The structure of the electronic device shown in FIG. 11 does not constitute a limitation on the electronic device. The electronic device may include more or less components than those shown in the figure, or some components may be combined, or different component arrangements, which will not be repeated here. .
其中,射频单元1101或者处理器1110,用于获取混合自动重传请求确认HARQ-ACK相关信息,所述HARQ-ACK相关信息用于所述终端的组播物理下行共享信道PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:Wherein, the radio frequency unit 1101 or the processor 1110 is configured to obtain HARQ-ACK related information for the hybrid automatic repeat request confirmation, and the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast physical downlink shared channel PDSCH of the terminal , Wherein the HARQ-ACK related information includes at least one of the following:
所述终端检测到的单播下行控制信息DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast downlink control information DCI detected by the terminal;
所述终端预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
可选的,所述单播DCI包括:调度所述组播PDSCH的组播DCI之后所述终端检测到的第一个单播DCI。Optionally, the unicast DCI includes: the first unicast DCI detected by the terminal after the multicast DCI of the multicast PDSCH is scheduled.
可选的,所述第一HARQ-ACK相关信息包括如下至少一项:Optionally, the first HARQ-ACK related information includes at least one of the following:
下行分配指示DAI、反馈定时指示、PUCCH资源指示PRI、发射功率指示、优先级指示。Downlink allocation indicator DAI, feedback timing indicator, PUCCH resource indicator PRI, transmit power indicator, priority indicator.
可选的,所述DAI包括:Optionally, the DAI includes:
第一比特和/或第二比特,其中,所述第一比特用于指示单播PDSCH,所述第二比特用于指示组播PDSCH;或者The first bit and/or the second bit, wherein the first bit is used to indicate unicast PDSCH, and the second bit is used to indicate multicast PDSCH; or
第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
可选的,若所述终端的至少一个组播PDSCH的HARQ-ACK复用在物理上行共享信道PUSCH上传输,则所述单播DCI包括调度所述PUSCH的DCI。Optionally, if the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on the physical uplink shared channel PUSCH for transmission, the unicast DCI includes the DCI for scheduling the PUSCH.
可选的,在所述终端的组播PDSCH对应Q个不同的无线网络临时标识RNTI的情况下:Optionally, in the case that the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identifiers RNTI:
所述第二比特包括Q个比特组,所述Q个比特组分别用于指示所述Q个RNTI对应的组播PDSCH;The second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
其中,Q为大于或者等于1的整数,或者,Q为大于或者等于1,且小于或者等于预设阈值的整数。Wherein, Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
可选的,所述DAI指示PDSCH的方式由高层信令配置。Optionally, the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
可选的,所述终端预先获取的第二HARQ-ACK相关信息包括:高层信令配置第二HARQ-ACK相关信息,或者预定义的第二HARQ-ACK相关信息;Optionally, the second HARQ-ACK related information obtained by the terminal in advance includes: second HARQ-ACK related information configured by higher layer signaling, or predefined second HARQ-ACK related information;
或者,or,
所述终端隐式确定的第二HARQ-ACK相关信息包括:按照所述组播PDSCH的业务类型确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information implicitly determined by the terminal includes: the second HARQ-ACK related information determined according to the service type of the multicast PDSCH.
可选的,所述第二HARQ-ACK相关信息包括:所述组播PDSCH的HARQ-ACK的优先级。Optionally, the second HARQ-ACK related information includes: the HARQ-ACK priority of the multicast PDSCH.
可选的,射频单元1101还用于:Optionally, the radio frequency unit 1101 is also used for:
按照所述HARQ-ACK相关信息,进行所述组播PDSCH的HARQ-ACK反馈。Perform HARQ-ACK feedback of the multicast PDSCH according to the HARQ-ACK related information.
可选的,调度所述组播PDSCH的组播DCI不包括所述HARQ-ACK相关信息。Optionally, the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
上述终端可以获取上述HARQ-ACK相关信息。且还可以使得终端可以支持组播业务的HARQ-ACK反馈,进而提高组播业务传输的可靠性。The foregoing terminal may obtain the foregoing HARQ-ACK related information. And it can also enable the terminal to support the HARQ-ACK feedback of the multicast service, thereby improving the reliability of the multicast service transmission.
可选的,本发明实施例还提供一种终端,包括处理器1110,存储器1109,存储在存储器1109上并可在所述处理器1110上运行的程序或指令,该程序或指令被处理器1110执行时实现上述上行信息确定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。Optionally, an embodiment of the present invention further provides a terminal, including a processor 1110, a memory 1109, and a program or instruction stored on the memory 1109 and capable of running on the processor 1110. The program or instruction is executed by the processor 1110. Each process of the foregoing uplink information determining method embodiment is implemented during execution, and the same technical effect can be achieved. To avoid repetition, details are not described herein again.
参见图12,图12是本发明实施例提供的一种网络设备的结构图,如图12所示,该网络设备1200包括:处理器1201、收发机1202、存储器1203和总线接口,其中:Referring to Fig. 12, Fig. 12 is a structural diagram of a network device provided by an embodiment of the present invention. As shown in Fig. 12, the network device 1200 includes: a processor 1201, a transceiver 1202, a memory 1203, and a bus interface, where:
收发机1202或者处理器1201,用于确定混合自动重传请求确认HARQ-ACK相关信息,所述HARQ-ACK相关信息用于终端的组播物理下行共享信道PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:The transceiver 1202 or the processor 1201 is configured to determine the HARQ-ACK related information of the hybrid automatic repeat request confirmation, and the HARQ-ACK related information is used for HARQ-ACK feedback of the terminal's multicast physical downlink shared channel PDSCH, where The HARQ-ACK related information includes at least one of the following:
向所述终端发送的单播下行控制信息DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast downlink control information DCI sent to the terminal;
所述网络设备预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
可选的,所述单播DCI包括:调度所述组播PDSCH的组播DCI之后发 送给所述终端的第一个单播DCI。Optionally, the unicast DCI includes: the first unicast DCI sent to the terminal after the multicast DCI of the multicast PDSCH is scheduled.
可选的,所述第一HARQ-ACK相关信息包括如下至少一项:Optionally, the first HARQ-ACK related information includes at least one of the following:
下行分配指示DAI、反馈定时指示、PUCCH资源指示PRI、发射功率指示、优先级指示。Downlink allocation indicator DAI, feedback timing indicator, PUCCH resource indicator PRI, transmit power indicator, priority indicator.
可选的,所述DAI包括:Optionally, the DAI includes:
第一比特和/或第二比特,其中,所述第一比特用于指示单播道PDSCH,所述第二比特用于指示组播PDSCH;或者The first bit and/or the second bit, wherein the first bit is used to indicate a unicast channel PDSCH, and the second bit is used to indicate a multicast PDSCH; or
第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
可选的,所述终端的至少一个组播PDSCH的HARQ-ACK复用在物理上行共享信道PUSCH上传输,则所述单播DCI包括调度所述PUSCH的DCI。Optionally, the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on the physical uplink shared channel PUSCH for transmission, then the unicast DCI includes the DCI for scheduling the PUSCH.
可选的,在所述终端的组播PDSCH对应Q个不同的无线网络临时标识RNTI的情况下:Optionally, in the case that the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identifiers RNTI:
所述第二比特包括Q个比特组,所述Q个比特组分别用于指示所述Q个RNTI对应的组播PDSCH;The second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
其中,Q为大于或者等于1的整数,或者,Q为大于或者等于1,且小于或者等于预设阈值的整数。Wherein, Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
可选的,所述DAI指示PDSCH的方式由高层信令配置。Optionally, the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
可选的,所述网络设备预先获取的第二HARQ-ACK相关信息包括:高层信令配置第二HARQ-ACK相关信息,或者预定义的第二HARQ-ACK相关信息;Optionally, the second HARQ-ACK related information obtained by the network device in advance includes: high-layer signaling configuration second HARQ-ACK related information, or predefined second HARQ-ACK related information;
或者,or,
所述网络设备预隐式确定的第二HARQ-ACK相关信息包括:按照所述组播PDSCH的业务类型确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information implicitly determined by the network device includes: the second HARQ-ACK related information determined according to the service type of the multicast PDSCH.
可选的,所述第二HARQ-ACK相关信息包括:所述组播PDSCH的HARQ-ACK的优先级。Optionally, the second HARQ-ACK related information includes: the HARQ-ACK priority of the multicast PDSCH.
可选的,收发机1202还用于:Optionally, the transceiver 1202 is also used for:
按照所述HARQ-ACK相关信息,接收所述组播PDSCH的HARQ-ACK反馈。According to the HARQ-ACK related information, the HARQ-ACK feedback of the multicast PDSCH is received.
可选的,调度所述组播PDSCH的组播DCI不包括所述HARQ-ACK相 关信息。Optionally, the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
上述网络设备可以使得终端获取上述HARQ-ACK相关信息。且还可以使得终端可以支持组播业务的HARQ-ACK反馈,进而提高组播业务传输的可靠性。The foregoing network device may enable the terminal to obtain the foregoing HARQ-ACK related information. And it can also enable the terminal to support the HARQ-ACK feedback of the multicast service, thereby improving the reliability of the multicast service transmission.
其中,收发机1202,用于在处理器1201的控制下接收和发送数据,所述收发机1202包括至少两个天线端口。The transceiver 1202 is configured to receive and send data under the control of the processor 1201, and the transceiver 1202 includes at least two antenna ports.
在图12中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1201代表的一个或多个处理器和存储器1203代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1202可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口1204还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。In FIG. 12, the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1201 and various circuits of the memory represented by the memory 1203 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein. The bus interface provides the interface. The transceiver 1202 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium. For different user equipment, the user interface 1204 may also be an interface capable of externally connecting internally required equipment, and the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
处理器1201负责管理总线架构和通常的处理,存储器1203可以存储处理器1201在执行操作时所使用的数据。The processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1203 can store data used by the processor 1201 when performing operations.
优选的,本发明实施例还提供一种网络设备,包括处理器1201,存储器1203,存储在存储器1203上并可在所述处理器1201上运行的程序或者指令,该程序或者指令被处理器1201执行时实现上述信息确定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。Preferably, the embodiment of the present invention also provides a network device, including a processor 1201, a memory 1203, a program or instruction stored on the memory 1203 and running on the processor 1201, and the program or instruction is executed by the processor 1201. Each process of the foregoing information determination method embodiment is realized during execution, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.
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信息获取方法或者信息确定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。The embodiment of the present application further provides a readable storage medium, the readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, each process of the foregoing information acquisition method or information determination method embodiment is implemented, And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
其中,所述处理器为上述实施例中所述的终端或者网络设备中的处理器。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。Wherein, the processor is the processor in the terminal or network device 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), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk.
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,实现上述信息获取方法或者信息确定方法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。An embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a program or an instruction to implement the above-mentioned information acquisition method or information determination Each process of the method embodiment can achieve the same technical effect. In order to avoid repetition, it will not be repeated here.
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。It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-level chips, system-on-chips, system-on-chips, or system-on-chips.
可以理解的是,本公开描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,模块、单元、子模块、子单元等可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。It can be understood that the embodiments described in the present disclosure can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, Other electronic units or combinations thereof that perform the functions described in this application.
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。It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. The functions are performed, for example, the described method may be performed in a different order from the described order, and various steps may also be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
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,空 调器,或者网络设备等)执行本申请各个实施例所述的方法。Through the description of the above implementation manners, those skilled in the art can clearly understand that the above-mentioned embodiment method can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.
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。The embodiments of the application are described above with reference to the accompanying drawings, but the application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of this application, many forms can be made without departing from the purpose of this application and the scope of protection of the claims, all of which fall within the protection of this application.

Claims (36)

  1. 一种信息获取方法,应用于终端,包括:An information acquisition method, applied to a terminal, includes:
    获取混合自动重传请求确认HARQ-ACK相关信息,所述HARQ-ACK相关信息用于所述终端的组播物理下行共享信道PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:Acquire HARQ-ACK related information of the hybrid automatic repeat request confirmation, the HARQ-ACK related information is used for the HARQ-ACK feedback of the multicast physical downlink shared channel PDSCH of the terminal, wherein the HARQ-ACK related information includes the following At least one:
    所述终端检测到的单播下行控制信息DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast downlink control information DCI detected by the terminal;
    所述终端预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
  2. 如权利要求1所述的方法,其中,所述单播DCI包括:调度所述组播PDSCH的组播DCI之后所述终端检测到的第一个单播DCI。The method of claim 1, wherein the unicast DCI comprises: the first unicast DCI detected by the terminal after the multicast DCI of the multicast PDSCH is scheduled.
  3. 如权利要求1所述的方法,其中,所述第一HARQ-ACK相关信息包括如下至少一项:The method of claim 1, wherein the first HARQ-ACK related information includes at least one of the following:
    下行分配指示DAI、反馈定时指示、PUCCH资源指示PRI、发射功率指示、优先级指示。Downlink allocation indicator DAI, feedback timing indicator, PUCCH resource indicator PRI, transmit power indicator, priority indicator.
  4. 如权利要求3所述的方法,其中,所述DAI包括:The method of claim 3, wherein the DAI comprises:
    第一比特和/或第二比特,其中,所述第一比特用于指示单播PDSCH,所述第二比特用于指示组播PDSCH;或者The first bit and/or the second bit, wherein the first bit is used to indicate unicast PDSCH, and the second bit is used to indicate multicast PDSCH; or
    第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  5. 如权利要求4所述的方法,其中,若所述终端的至少一个组播PDSCH的HARQ-ACK复用在物理上行共享信道PUSCH上传输,则所述单播DCI包括调度所述PUSCH的DCI。The method according to claim 4, wherein if the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on the physical uplink shared channel PUSCH for transmission, the unicast DCI includes DCI for scheduling the PUSCH.
  6. 如权利要求5所述的方法,其中,在所述终端的组播PDSCH对应Q个不同的无线网络临时标识RNTI的情况下:The method according to claim 5, wherein, in the case that the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identification RNTIs:
    所述第二比特包括Q个比特组,所述Q个比特组分别用于指示所述Q个RNTI对应的组播PDSCH;The second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
    其中,Q为大于或者等于1的整数,或者,Q为大于或者等于1,且小于或者等于预设阈值的整数。Wherein, Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
  7. 如权利要求4或5所述的方法,其中,所述DAI指示PDSCH的方式 由高层信令配置。The method according to claim 4 or 5, wherein the way in which the DAI indicates the PDSCH is configured by higher layer signaling.
  8. 如权利要求1所述的方法,其中,所述终端预先获取的第二HARQ-ACK相关信息包括:高层信令配置第二HARQ-ACK相关信息,或者预定义的第二HARQ-ACK相关信息;The method according to claim 1, wherein the second HARQ-ACK related information obtained by the terminal in advance comprises: second HARQ-ACK related information configured by higher layer signaling, or predefined second HARQ-ACK related information;
    或者,or,
    所述终端隐式确定的第二HARQ-ACK相关信息包括:按照所述组播PDSCH的业务类型或者业务优先级确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information implicitly determined by the terminal includes: the second HARQ-ACK related information determined according to the service type or service priority of the multicast PDSCH.
  9. 如权利要求1或8所述的方法,其中,所述第二HARQ-ACK相关信息包括:所述组播PDSCH的HARQ-ACK的优先级。The method according to claim 1 or 8, wherein the second HARQ-ACK related information comprises: the priority of the HARQ-ACK of the multicast PDSCH.
  10. 如权利要求1所述的方法,还包括:The method of claim 1, further comprising:
    按照所述HARQ-ACK相关信息,进行所述组播PDSCH的HARQ-ACK反馈。Perform HARQ-ACK feedback of the multicast PDSCH according to the HARQ-ACK related information.
  11. 如权利要求1所述的方法,其中,调度所述组播PDSCH的组播DCI不包括所述HARQ-ACK相关信息。The method of claim 1, wherein the multicast DCI scheduling the multicast PDSCH does not include the HARQ-ACK related information.
  12. 一种信息确定方法,应用于网络设备,包括:A method for determining information, applied to network equipment, including:
    确定混合自动重传请求确认HARQ-ACK相关信息,所述HARQ-ACK相关信息用于终端的组播物理下行共享信道PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:It is determined that the HARQ-ACK related information of the hybrid automatic repeat request acknowledgement is used for HARQ-ACK feedback of the terminal's multicast physical downlink shared channel PDSCH, wherein the HARQ-ACK related information includes at least one of the following item:
    向所述终端发送的单播下行控制信息DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast downlink control information DCI sent to the terminal;
    所述网络设备预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
  13. 如权利要求12所述的方法,其中,所述单播DCI包括:调度所述组播PDSCH的组播DCI之后发送给所述终端的第一个单播DCI。The method of claim 12, wherein the unicast DCI comprises: the first unicast DCI sent to the terminal after the multicast DCI of the multicast PDSCH is scheduled.
  14. 如权利要求12所述的方法,其中,所述第一HARQ-ACK相关信息包括如下至少一项:The method according to claim 12, wherein the first HARQ-ACK related information includes at least one of the following:
    下行分配指示DAI、反馈定时指示、PUCCH资源指示PRI、发射功率指示、优先级指示。Downlink allocation indicator DAI, feedback timing indicator, PUCCH resource indicator PRI, transmit power indicator, priority indicator.
  15. 如权利要求14所述的方法,其中,所述DAI包括:The method of claim 14, wherein the DAI comprises:
    第一比特和/或第二比特,其中,所述第一比特用于指示单播道PDSCH, 所述第二比特用于指示组播PDSCH;或者The first bit and/or the second bit, wherein the first bit is used to indicate a unicast channel PDSCH, and the second bit is used to indicate a multicast PDSCH; or
    第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  16. 如权利要求15所述的方法,其中,所述终端的至少一个组播PDSCH的HARQ-ACK复用在物理上行共享信道PUSCH上传输,则所述单播DCI包括调度所述PUSCH的DCI。The method according to claim 15, wherein the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on a physical uplink shared channel PUSCH for transmission, and the unicast DCI includes DCI for scheduling the PUSCH.
  17. 如权利要求16所述的方法,其中,在所述终端的组播PDSCH对应Q个不同的无线网络临时标识RNTI的情况下:The method according to claim 16, wherein, in the case that the multicast PDSCH of the terminal corresponds to Q different wireless network temporary identification RNTIs:
    所述第二比特包括Q个比特组,所述Q个比特组分别用于指示所述Q个RNTI对应的组播PDSCH;The second bit includes Q bit groups, and the Q bit groups are respectively used to indicate the multicast PDSCH corresponding to the Q RNTIs;
    其中,Q为大于或者等于1的整数,或者,Q为大于或者等于1,且小于或者等于预设阈值的整数。Wherein, Q is an integer greater than or equal to 1, or Q is an integer greater than or equal to 1, and less than or equal to a preset threshold.
  18. 如权利要求15所述的方法,其中,所述DAI指示PDSCH的方式由高层信令配置。The method according to claim 15, wherein the manner in which the DAI indicates the PDSCH is configured by higher layer signaling.
  19. 如权利要求12所述的方法,其中,所述网络设备预先获取的第二HARQ-ACK相关信息包括:高层信令配置第二HARQ-ACK相关信息,或者预定义的第二HARQ-ACK相关信息;The method according to claim 12, wherein the second HARQ-ACK related information obtained by the network device in advance comprises: high-layer signaling configuration second HARQ-ACK related information, or predefined second HARQ-ACK related information ;
    或者,or,
    所述网络设备预隐式确定的第二HARQ-ACK相关信息包括:按照所述组播PDSCH的业务类型或者业务优先级确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information implicitly determined by the network device includes: the second HARQ-ACK related information determined according to the service type or service priority of the multicast PDSCH.
  20. 如权利要求12或19所述的方法,其中,所述第二HARQ-ACK相关信息包括:所述组播PDSCH的HARQ-ACK的优先级。The method according to claim 12 or 19, wherein the second HARQ-ACK related information comprises: HARQ-ACK priority of the multicast PDSCH.
  21. 如权利要求12所述的方法,还包括:The method of claim 12, further comprising:
    按照所述HARQ-ACK相关信息,接收所述组播PDSCH的HARQ-ACK反馈。According to the HARQ-ACK related information, the HARQ-ACK feedback of the multicast PDSCH is received.
  22. 如权利要求12所述的方法,其中,调度所述组播PDSCH的组播DCI不包括所述HARQ-ACK相关信息。The method of claim 12, wherein the multicast DCI for scheduling the multicast PDSCH does not include the HARQ-ACK related information.
  23. 一种信息获取装置,包括:An information acquisition device includes:
    获取模块,用于获取混合自动重传请求确认HARQ-ACK相关信息,所述HARQ-ACK相关信息用于所述终端的组播物理下行共享信道PDSCH的 HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:The acquiring module is configured to acquire HARQ-ACK related information of hybrid automatic repeat request confirmation, and the HARQ-ACK related information is used for HARQ-ACK feedback of the multicast physical downlink shared channel PDSCH of the terminal, wherein the HARQ- ACK related information includes at least one of the following:
    所述终端检测到的单播下行控制信息DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast downlink control information DCI detected by the terminal;
    所述终端预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the terminal.
  24. 如权利要求23所述的装置,其中,所述第一HARQ-ACK相关信息包括如下至少一项:The apparatus of claim 23, wherein the first HARQ-ACK related information includes at least one of the following:
    下行分配指示DAI、反馈定时指示、PUCCH资源指示PRI、发射功率指示、优先级指示。Downlink allocation indicator DAI, feedback timing indicator, PUCCH resource indicator PRI, transmit power indicator, priority indicator.
  25. 如权利要求24所述的装置,其中,所述DAI包括:The device of claim 24, wherein the DAI comprises:
    第一比特和/或第二比特,其中,所述第一比特用于指示单播PDSCH,所述第二比特用于指示组播PDSCH;或者The first bit and/or the second bit, wherein the first bit is used to indicate unicast PDSCH, and the second bit is used to indicate multicast PDSCH; or
    第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  26. 如权利要求25所述的装置,其中,若所述终端的至少一个组播PDSCH的HARQ-ACK复用在物理上行共享信道PUSCH上传输,则所述单播DCI包括调度所述PUSCH的DCI。The apparatus according to claim 25, wherein if the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on a physical uplink shared channel PUSCH for transmission, the unicast DCI includes DCI for scheduling the PUSCH.
  27. 一种信息确定装置,包括:An information determining device includes:
    确定模块,用于确定混合自动重传请求确认HARQ-ACK相关信息,所述HARQ-ACK相关信息用于终端的组播物理下行共享信道PDSCH的HARQ-ACK反馈,其中,所述HARQ-ACK相关信息包括如下至少一项:The determining module is used to determine the HARQ-ACK related information of the hybrid automatic repeat request confirmation, and the HARQ-ACK related information is used for the HARQ-ACK feedback of the terminal's multicast physical downlink shared channel PDSCH, where the HARQ-ACK is related The information includes at least one of the following:
    向所述终端发送的单播下行控制信息DCI包括的第一HARQ-ACK相关信息;The first HARQ-ACK related information included in the unicast downlink control information DCI sent to the terminal;
    所述网络设备预先获取或者隐式确定的第二HARQ-ACK相关信息。The second HARQ-ACK related information obtained in advance or implicitly determined by the network device.
  28. 如权利要求27所述的装置,其中,所述第一HARQ-ACK相关信息包括如下至少一项:The apparatus according to claim 27, wherein the first HARQ-ACK related information includes at least one of the following:
    下行分配指示DAI、反馈定时指示、PUCCH资源指示PRI、发射功率指示、优先级指示。Downlink allocation indicator DAI, feedback timing indicator, PUCCH resource indicator PRI, transmit power indicator, priority indicator.
  29. 如权利要求28所述的装置,其中,所述DAI包括:The device of claim 28, wherein the DAI comprises:
    第一比特和/或第二比特,其中,所述第一比特用于指示单播道PDSCH,所述第二比特用于指示组播PDSCH;或者The first bit and/or the second bit, wherein the first bit is used to indicate a unicast channel PDSCH, and the second bit is used to indicate a multicast PDSCH; or
    第三比特,所述第三比特用于联合指示单播PDSCH和组播PDSCH。The third bit is used to jointly indicate unicast PDSCH and multicast PDSCH.
  30. 如权利要求29所述的装置,其中,若所述终端的至少一个组播PDSCH的HARQ-ACK复用在物理上行共享信道PUSCH上传输,则所述单播DCI包括调度所述PUSCH的DCI。The apparatus according to claim 29, wherein if the HARQ-ACK of at least one multicast PDSCH of the terminal is multiplexed on the physical uplink shared channel PUSCH for transmission, the unicast DCI includes DCI for scheduling the PUSCH.
  31. 一种终端,包括:存储器、处理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者指令,所述程序或者指令被所述处理器执行时实现如权利要求1至11中任一项所述的信息获取方法中的步骤。A terminal comprising: a memory, a processor, and a program or instruction that is stored on the memory and can run on the processor, and the program or instruction is executed by the processor as claimed in claims 1 to 11 Steps in the information acquisition method described in any one of.
  32. 一种网络设备,包括:存储器、处理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者指令,所述程序或者指令被所述处理器执行时实现如权利要求12至22中任一项所述的信息确定方法中的步骤。A network device, comprising: a memory, a processor, and a program or instruction stored on the memory and capable of running on the processor, and the program or instruction is executed by the processor as claimed in claim 12 to Steps in the method for determining information according to any one of 22.
  33. 一种可读存储介质,其中,所述可读存储介质上存储有程序或指令,所述程序或指令被处理器执行时实现如权利要求1至11中任一项所述的信息获取方法中的步骤,或者所述程序或指令被处理器执行时实现如权利要求12至22中任一项所述的信息确定方法中的步骤。A readable storage medium, wherein a program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the information acquisition method according to any one of claims 1 to 11 is implemented Or when the program or instruction is executed by a processor, the steps in the information determination method according to any one of claims 12 to 22 are implemented.
  34. 一种芯片,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,实现如权利要求1至11中任一项所述的信息获取方法中的步骤,或者实现如权利要求12至22中任一项所述的信息确定方法中的步骤。A chip comprising a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a program or an instruction to implement the information acquisition method according to any one of claims 1 to 11 , Or implement the steps in the information determination method according to any one of claims 12 to 22.
  35. 一种计算机程序产品,其中,所述计算机程序产品被至少一个处理器执行时实现如权利要求1至11中任一项所述的信息获取方法中的步骤,或者实现如权利要求12至22中任一项所述的信息确定方法中的步骤。A computer program product, wherein the computer program product, when executed by at least one processor, implements the steps in the information acquisition method as claimed in any one of claims 1 to 11, or implements the steps in the information acquisition method as claimed in claims 12 to 22 Any of the steps in the method for determining information.
  36. 一种通信设备,其中,所述通信设备被配置为用于执行如权利要求1至11中任一项所述的信息获取方法中的步骤,或者如权利要求12至22中任一项所述的信息确定方法中的步骤。A communication device, wherein the communication device is configured to perform the steps in the information acquisition method as claimed in any one of claims 1 to 11, or as claimed in any one of claims 12 to 22 The information determines the steps in the method.
PCT/CN2021/089869 2020-04-30 2021-04-26 Information acquisition method, information determination method, apparatus, and related device WO2021218907A1 (en)

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