WO2020142985A1 - Procédé et appareil d'émission et de réception d'informations de rétroaction - Google Patents

Procédé et appareil d'émission et de réception d'informations de rétroaction Download PDF

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Publication number
WO2020142985A1
WO2020142985A1 PCT/CN2019/071179 CN2019071179W WO2020142985A1 WO 2020142985 A1 WO2020142985 A1 WO 2020142985A1 CN 2019071179 W CN2019071179 W CN 2019071179W WO 2020142985 A1 WO2020142985 A1 WO 2020142985A1
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WIPO (PCT)
Prior art keywords
feedback information
control channel
uplink control
resource
physical uplink
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PCT/CN2019/071179
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English (en)
Chinese (zh)
Inventor
杨现俊
张健
张磊
王昕�
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Fujitsu Ltd
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Fujitsu Ltd
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Priority to PCT/CN2019/071179 priority Critical patent/WO2020142985A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the embodiments of the present invention relate to the field of communication technologies, and in particular, to a method and a device for sending and receiving feedback information.
  • HARQ Hybrid Automatic Repeat Question
  • ACK/NACK Hybrid Automatic Repeat Question
  • the report is mainly designed for enhanced mobile broadband (eMBB, enhanced Mobile Broadband) services, and limits the maximum number of physical uplink control channel (PUCCH, Physical Uplink Control, CHannel) resources to send HARQ feedback information in a time slot.
  • eMBB enhanced Mobile Broadband
  • PUCCH Physical Uplink Control channel
  • RAN1 # 95 meeting RAN1 agreed to support a slot there is more than one PUCCH resource for transmitting HARQ feedback information, in order to meet the high reliability Low-latency communication (URLLC, Ultra-Reliable and Low-Latency Communication) business requirements.
  • URLLC Low-latency communication
  • Ultra-Reliable and Low-Latency Communication Low-Latency Communication
  • embodiments of the present invention provide a method and apparatus for sending and receiving feedback information.
  • a method for sending feedback information including:
  • the terminal device determines the feedback information of the hybrid automatic repeat request
  • the terminal device uses the determined physical uplink control channel resource to send the hybrid automatic repeat request feedback information.
  • an apparatus for sending feedback information including:
  • Information determination unit which determines the feedback information of the hybrid automatic repeat request
  • the resource determining unit determines the physical uplink control channel resource that sends the hybrid automatic repeat request feedback information according to one of the downlink control information received from multiple downlink control information that points to the same time slot and the same physical uplink control channel resource ;as well as
  • a sending unit which uses the determined physical uplink control channel resource to send the hybrid automatic repeat request feedback information.
  • a method for receiving feedback information including:
  • the network device sends one or more downlink control information to the terminal device;
  • the network device receives the hybrid automatic retransmission request feedback information sent by the terminal device using the physical uplink control channel resource; wherein the physical uplink control channel resource is directed by the terminal device to the same time slot and the same physical uplink control channel resource according to the received One of the multiple downlink control information is determined by the downlink control information.
  • a feedback information receiving apparatus including:
  • a sending unit which sends one or more downlink control information to the terminal device.
  • a receiving unit which receives hybrid automatic retransmission request feedback information sent by a terminal device using a physical uplink control channel resource; wherein the physical uplink control channel resource is directed by the terminal device to the same time slot and the same physical uplink control according to the received One of the plurality of downlink control information of the channel resource is determined by the downlink control information.
  • a communication system including:
  • the terminal device determines the feedback information of the hybrid automatic retransmission request; determines to send the hybrid automatic retransmission request according to one of the downlink control information received from multiple downlink control information directed to the same time slot and the same physical uplink control channel resource Physical uplink control channel resources for feedback information; and using the determined physical uplink control channel resources to send the hybrid automatic repeat request feedback information;
  • a network device that sends one or more downlink control information to the terminal device; and receives the hybrid automatic retransmission request feedback information sent by the terminal device using the physical uplink control channel resource.
  • the terminal device determines the PUCCH for sending HARQ feedback information according to one DCI in a plurality of downlink control information (DCI, Downlink Control Information) that points to the same time slot and the same PUCCH resource.
  • DCI Downlink Control Information
  • PUCCH resources of different services such as URLLC and eMBB
  • URLLC Ultra Mobile Broadband
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a method for sending feedback information according to an embodiment of the present invention
  • FIG. 3 is an exemplary diagram of communication between a network device and a terminal device according to an embodiment of the present invention
  • FIG. 4 is another schematic diagram of a method for sending feedback information according to an embodiment of the present invention.
  • FIG. 5 is another schematic diagram of a method for sending feedback information according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a method for receiving feedback information according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an apparatus for sending feedback information according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a feedback information receiving apparatus according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a network device according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a terminal device according to an embodiment of the present invention.
  • the terms “first”, “second”, etc. are used to distinguish different elements in terms of titles, but do not mean the spatial arrangement or chronological order of these elements, and these elements should not be used by these terms Restricted.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having” and the like refer to the stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
  • the term “communication network” or “wireless communication network” may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), wideband code division multiple access (WCDMA, Wideband Code Division Multiple Access), high-speed message access (HSPA, High-Speed Packet Access) and so on.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • LTE-A Long Term Evolution-A
  • LTE- Advanced wideband code division multiple access
  • WCDMA Wideband Code Division Multiple Access
  • High-speed message access High-Speed Packet Access
  • the communication between devices in the communication system can be performed according to any stage of the communication protocol, for example, it can include but is not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G , New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
  • 1G generation
  • 2G 2.5G
  • 2.75G 3G
  • 5G New Radio
  • NR, New Radio New Radio
  • Network device refers to, for example, a device that connects a terminal device to a communication network and provides services for the terminal device in a communication system.
  • Network equipment may include but is not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.
  • the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB) and 5G base station (gNB), etc., and may also include a remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low power node (such as femeto, pico, etc.).
  • NodeB Node B
  • eNodeB or eNB evolved Node B
  • gNB 5G base station
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low power node such as femeto, pico, etc.
  • base station may include some or all of their functions, and each base station may provide communication coverage for a specific geographic area.
  • the term "cell” may refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "user equipment” (UE, User Equipment) or “terminal equipment” (TE, Terminal Equipment or Terminal Device) refers to, for example, a device that accesses a communication network through a network device and receives network services.
  • the terminal equipment may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), terminal, subscriber station (SS, Subscriber Station), access terminal (AT, Access Terminal), station, and so on.
  • terminal devices may include but are not limited to the following devices: cellular phones (Cellular), personal digital assistants (PDA, Personal Digital Assistant), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, Cordless phones, smart phones, smart watches, digital cameras, etc.
  • Cellular Cellular
  • PDA Personal Digital Assistant
  • wireless modems wireless communication devices
  • handheld devices machine-type communication devices
  • laptop computers Cordless phones
  • smart phones smart watches, digital cameras, etc.
  • the terminal device may also be a machine or device that performs monitoring or measurement.
  • the terminal device may include, but is not limited to: machine type communication (MTC, Machine Type Communication) terminal, Vehicle-mounted communication terminals, device-to-device (D2D, Device to Device) terminals, machine-to-machine (M2M, Machine to Machine) terminals, and so on.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • network side or “network device side” refers to a side of the network, which may be a certain base station or may include one or more network devices as above.
  • user side or “terminal side” or “terminal device side” refers to the side of the user or terminal, which may be a certain UE or may include one or more terminal devices as above.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, and schematically illustrates a case where a terminal device and a network device are taken as an example.
  • the communication system 100 may include a network device 101 and a terminal device 102.
  • FIG. 1 only takes one terminal device and one network device as examples, but the embodiment of the present invention is not limited thereto.
  • the network device 101 and the terminal device 102 can perform existing service or service transmission that can be implemented in the future.
  • these services may include but are not limited to: enhanced mobile broadband (eMBB, enhanced Mobile Broadband), large-scale machine type communication (mMTC, massive Machine Type Communication), and highly reliable low-latency communication (URLLC, Ultra-Reliable and Low -Latency Communication), etc.
  • eMBB enhanced mobile broadband
  • mMTC large-scale machine type communication
  • URLLC Ultra-Reliable and Low -Latency Communication
  • Embodiments of the present invention provide a method for sending feedback information, which will be described from the terminal device side (that is, the sending side of feedback information).
  • FIG. 2 is a schematic diagram of a method for sending feedback information according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step 201 The terminal device determines hybrid automatic repeat request (HARQ) feedback information
  • Step 202 The terminal device determines a PUCCH to send the HARQ feedback information according to one DCI (may be any DCI, for example, the last DCI) among the multiple DCIs that point to the same time slot and the same PUCCH resource. Resources; and
  • Step 203 The terminal device uses the determined PUCCH resource to send the HARQ feedback information.
  • PUCCH resources of different services such as eMBB and URLLC
  • the resources can be determined independently of each other, and can meet the requirements of high reliability and low latency in certain scenarios (such as URLLC) when performing HARQ feedback.
  • the multiple DCIs may first sort the different serving cell indexes of the same physical downlink control channel (PDCCH, Physical Downlink Control CHannel) detection opportunity index in ascending order, and then sort the different PDCCH detection opportunity indexes in ascending order.
  • the terminal device may detect one or more DCIs sent by the network device.
  • PDSCH Physical Downlink Shared CHannel
  • a network device may send multiple data information to a terminal device (eg, UE), for example, through multiple PDSCHs. Bearer; for these data information, the UE may feed back HARQ feedback information (HARQ-ACK codebook) to the gNB, for example, bearer via PUCCH.
  • HARQ-ACK codebook HARQ feedback information
  • the gNB can also send multiple DCIs to the UE, which are carried on the PDCCH.
  • PDCCH 1 (carrying DCI 1) is used to indicate PDSCH 1
  • PDCCH 2 (carrying DCI 2) is used to indicate PDSCH 2
  • PDCCH 3 (carrying DCI 3) is used to indicate PDSCH 3.
  • the HARQ feedback information corresponding to the three PDSCHs can be sent in a HARQ-ACK codebook through the PUCCH.
  • the same PUCCH resource is determined at least according to the identifier of the PUCCH resource set and the indication value of the PUCCH resource.
  • the identifier of the PUCCH resource set is the value of the parameter PUCCH-ResourceSetId in the PUCCH configuration information PUCCH-config
  • the indication value of the PUCCH resource is the value ⁇ PRI of the PUCCH resource indication field in DCI format 1_0 or DCI format 1_1;
  • the PUCCH resource can also be determined according to parameters such as slot offset K 1 and slot offset K 0 between PDSCH and HARQ feedback.
  • the present invention is not limited to this.
  • the identification of the PUCCH resource set and the indication value of the PUCCH resource it is not limited to K 0 and K 1 , and other parameters or more parameters may be used.
  • the HARQ feedback information forms a semi-static HARQ-ACK codebook.
  • FIG. 4 is another schematic diagram of a method for sending feedback information according to an embodiment of the present invention, which will be described from the sending side and the receiving side. As shown in Figure 4, the method includes:
  • Step 401 The terminal device determines the time slot range included in the semi-static HARQ-ACK codebook and/or the type of the corresponding PDSCH.
  • the monitoring time window for candidate PDSCH reception or Semi-Persistent Scheduling (SPS, Semi-Persistent Scheduling) PDSCH release may be less than a predetermined value, which is, for example, a value defined in the standard.
  • a predetermined value which is, for example, a value defined in the standard.
  • the size of the set of time slot offsets K 1 between the PDSCH and HARQ feedback associated with the activated uplink partial bandwidth (BWP) that needs to be monitored is reduced.
  • the HARQ-ACK codebook independent of the low-priority service e.g. eMBB
  • semi-static for high-priority service e.g. URLLC
  • M A C candidate PDSCH reception or SPS PDSCH release
  • A/N high-priority user equipment feedback ACK/NACK
  • the set ⁇ 1,2,3,4,5,6,7,8 ⁇ in the DCI format 1_0 corresponding to the high-priority service can be reduced, for example, reduced Is ⁇ 1,2 ⁇ ; for another example, when K 1 is provided by the high-level parameter'dl-DataToUL-ACK', the set of K 1 in the high-level parameter corresponding to the high-priority service can be set to ⁇ 1,2 ⁇ .
  • the feedback delay of high-priority services can be reduced.
  • the HARQ feedback information may be sent separately according to different types of PDSCH. That is, the HARQ feedback information of the first service carries the feedback information bits of the PDSCH of the first type, and the HARQ feedback information of the second service having a different priority from the first service carries the feedback of the PDSCH of the second type Information bits.
  • type A PDSCH and type B PDSCH can be distinguished in their respective code books.
  • the codebook of the high-priority service only carries the HARQ-ACK information bits of type B PDSCH
  • the codebook of the low-priority service only carries the HARQ-ACK information bits of type A PDSCH.
  • the HARQ feedback information is separately transmitted according to the type of PDSCH, and the redundancy between HARQ-ACK codebooks of different services (for example, high-priority service and low-priority service) can be reduced.
  • the method may further include:
  • step 402 the terminal device determines a set including one or more candidate PDSCH receptions or SPS PDSCH releases.
  • the first pseudo code in section 9.1.2.1 of 3GPP TS 38.213 can be executed to determine the set containing MA A and C candidate PDSCH receptions or SPS PDSCH releases. These candidate PDSCHs have a chance to send the corresponding time slot n HARQ feedback information.
  • the terminal device may also adjust the set of candidate PDSCH reception or SPS PDSCH release according to the processing capability parameter N 3 .
  • the processing capability parameter N 3 reference may be made to the following embodiments, or related technologies.
  • the method may further include:
  • Step 403 the terminal device receives one or more DCIs sent by the network device
  • the terminal device may detect one or more DCIs in a time slot. It is worth noting that step 403 is not necessarily executed after step 402, but may also be executed before step 402 or step 401, or executed in parallel with steps 402 and 401.
  • Step 404 the terminal device determines a semi-static HARQ-ACK code book
  • the terminal device may execute the second pseudo code in section 9.1.2.1 of 3GPP TS 38.213 to determine O ACK HARQ feedback information bits in the semi-static HARQ-ACK codebook.
  • Step 405 the terminal device determines the PUCCH resource for sending the semi-static HARQ-ACK codebook
  • the terminal device may send a PUCCH carrying HARQ feedback information based on all detected DCI format 1_0 or DCI format 1_1, the field'PDSCH-to-HARQ_feedback timing' indicator points to the same time slot, and the same PUCCH resource
  • a PUCCH resource indicator field in DCI format 1_0 or DCI format 1_1 determines the PUCCH resource for sending HARQ-ACK codebooks.
  • different serving cell indexes of the same PDCCH detection opportunity index can be sorted in ascending order, and then different PDCCH monitoring opportunity indexes can be sorted in ascending order.
  • the UE has detected a total of 5 DCIs, namely DCI1, DCI2, DCI3, DCI4 and DCI5, where DCI1, DCI3 and DCI4 are DCI format 1_0, DCI2 and DCI5 are DCI formats 1_1, the'PDSCH-to-HARQ_feedback timing' indicators of these 5 DCIs all point to the same time slot and the same PUCCH resource, then the UE determines to send HARQ-ACK according to the PUCCH resource indication field in one of the DCIs (eg DCI 5) PUCCH resources for codebooks.
  • the method may further include:
  • Step 406 The terminal device sends the semi-static HARQ-ACK codebook on the determined PUCCH resource.
  • FIG. 4 only schematically illustrates the embodiments of the present invention, but the present invention is not limited thereto.
  • the execution order between the various steps can be adjusted appropriately, and in addition, other steps can be added or some of the steps can be reduced.
  • Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description in FIG. 4 described above.
  • PUCCH resources when determining PUCCH resources, PUCCH resources can be determined independently of each other by pointing to the same time slot and DCI of the same PUCCH resource; in addition, by reducing the monitoring time window and/or sending HARQ feedback according to the type of PDSCH
  • the semi-static HARQ-ACK codebooks can be determined independently of each other, and can meet the requirements of high reliability and low latency for HARQ feedback in certain scenarios (such as URLLC).
  • the HARQ feedback information forms a dynamic codebook.
  • FIG. 5 is another schematic diagram of a method for sending feedback information according to an embodiment of the present invention, which will be described from the sending side and the receiving side. As shown in Figure 5, the method includes:
  • step 501 the terminal device determines a PDCCH detection opportunity for scheduling PDSCH reception or SPS PDSCH release DCI.
  • time slots may be offset between the PDSCH in accordance with the HARQ feedback K 1, the time domain resource allocation PDSCH slot offset K 0, indicating the value of the identification PUCCH resource set and PUCCH resources ⁇ PRI, such that The HARQ feedback information received by the PDSCH or released by the SPS PDSCH is sent on the same time slot and the same PUCCH resource.
  • the PDCCH monitoring opportunities of DCI format 1_0 or DCI format 1_1 for scheduling PDSCH reception or SPS PDSCH release can be determined, and based on the following information, the UE can be in the same time slot and the same PUCCH
  • the HARQ-ACK information bits of the above PDSCH reception or SPS PDSCH release are sent on the resource:
  • -PUCCH resource indicator value ⁇ PRI which is the value of the PUCCH resource indicator (PRI) field in the corresponding DCI format 1_0 or DCI format 1_1.
  • the above parameters are only examples of the present invention, but the present invention is not limited thereto.
  • the identification of the PUCCH resource set and the indication value of the PUCCH resource it is not limited to K 0 and K 1 , and other parameters or more parameters may be used.
  • the method may further include:
  • Step 502 The terminal device adjusts the PDCCH detection opportunity according to the processing capability parameter N 3 .
  • the set of PDCCH monitoring opportunities determined in step 501 includes PDCCHs outside the processing range of the UE, and if so, PDCCHs beyond the processing range of the UE are removed from the set.
  • the terminal device detects that the first DCI indicates the first resource sent by the PUCCH carrying the corresponding HARQ feedback information in a time slot, and then detects the second DCI indication in the same time slot In the case of the second resource sent by the PUCCH carrying the corresponding HARQ feedback information, if the PDCCH reception time including the second DCI is not earlier than N 3 symbols of the start symbol of the first resource sent by the PUCCH, The terminal device determines that the HARQ feedback information corresponding to the second DCI is not multiplexed on the PUCCH resource in the time slot, or the terminal device does not expect to multiplex on the PUCCH resource in the time slot HARQ feedback information corresponding to the second DCI.
  • the UE detects that the first DCI format 1_0 or DCI format 1_1 indicates the first resource sent by the PUCCH carrying the corresponding HARQ feedback information in a time slot, and detects it at a later time in the same time slot
  • the second DCI format 1_0 or DCI format 1_1 indicates the second resource sent by the PUCCH carrying the corresponding HARQ feedback information
  • the PDCCH containing the second DCI format is received no earlier than the start of the first resource sent by the PUCCH Symbol N 3 symbols, the UE does not expect to multiplex the HARQ feedback information corresponding to the second DCI format on the PUCCH resource in the above time slot.
  • the method may further include:
  • the terminal device receives one or more DCIs sent by the network device that include a counter downlink assignment indicator (C-DAI, counter downlink assignment) and a total downlink assignment indicator (T-DAI, total downlink assignment indicator);
  • C-DAI counter downlink assignment indicator
  • T-DAI total downlink assignment indicator
  • the terminal device may detect one or more DCIs in a time slot. It is worth noting that step 503 is not necessarily executed after step 502, but may also be executed before step 502 or step 501, or executed in parallel with steps 502 and 501.
  • the network device calculates the C-DAI and the T-DAI; in addition, the DCI used to calculate the C-DAI and the T-DAI is indicated in the same time slot and on the same PUCCH resource Send HARQ feedback information.
  • C-DAI is the number of ⁇ serving cell, PDCCH monitoring opportunities ⁇ pairs that have accumulated up to the current serving cell and the current PDCCH monitoring opportunities, and the DCI format 1_0 or DCI format 1_1 associated with PDSCH reception or SPS PDSCH release
  • the above DCI not only indicates that HARQ feedback information is sent on the same slot (slot), but also indicates that HARQ feedback information is sent on the same PUCCH resource.
  • T-DAI is the total number of ⁇ serving cell, PDCCH monitoring opportunity ⁇ pairs in DCI format 1_0 or DCI format 1_1 associated with PDSCH reception or SPS PDSCH release as of the current PDCCH monitoring opportunity, and with the PDCCH monitoring opportunity Update and update; wherein the above DCI not only indicates that HARQ feedback information is sent on the same slot, but also indicates that HARQ feedback information is sent on the same PUCCH resource.
  • the method may further include:
  • Step 504 the terminal device determines the dynamic HARQ-ACK code book
  • the terminal device may execute the pseudo code of section 9.1.2.1 in 3GPP TS 38.213 to determine O ACK HARQ feedback information bits in the dynamic HARQ-ACK codebook.
  • Step 505 the terminal device determines the PUCCH resource for sending the dynamic HARQ-ACK code book
  • the terminal device may send a PUCCH carrying HARQ feedback information based on all detected DCI format 1_0 or DCI format 1_1, the field'PDSCH-to-HARQ_feedback timing' indicator points to the same time slot, and the same PUCCH resource
  • a PUCCH resource indicator field in DCI format 1_0 or DCI format 1_1 determines the PUCCH resource for sending HARQ-ACK codebooks.
  • different serving cell indexes of the same PDCCH detection opportunity index can be sorted in ascending order, and then different PDCCH monitoring opportunity indexes can be sorted in ascending order.
  • the UE has detected a total of 5 DCIs, namely DCI1, DCI2, DCI3, DCI4 and DCI5, where DCI1, DCI3 and DCI4 are DCI format 1_0, DCI2 and DCI5 are DCI formats 1_1, the'PDSCH-to-HARQ_feedback timing' indicators of these 5 DCIs all point to the same time slot and the same PUCCH resource, then the UE determines to send HARQ-ACK according to the PUCCH resource indication field in one of the DCIs (eg DCI 5) PUCCH resources for codebooks.
  • the method may further include:
  • Step 506 The terminal device sends the dynamic HARQ-ACK codebook on the determined PUCCH resource.
  • the PUCCH resource when determining the PUCCH resource, can be independently determined by DCI pointing to the same time slot and the same PUCCH resource; in addition, the dynamic HARQ-ACK codebook can be independently determined to satisfy a certain Some scenarios (such as URLLC) require high reliability and low latency when performing HARQ feedback.
  • FIG. 5 only schematically illustrates the embodiments of the present invention, but the present invention is not limited thereto.
  • the execution order between the various steps can be adjusted appropriately, and in addition, other steps can be added or some of the steps can be reduced.
  • Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of FIG. 5 described above.
  • the terminal device determines the PUCCH resource for sending HARQ feedback information according to one DCI among the multiple DCIs that point to the same time slot and the same PUCCH resource. Therefore, PUCCH resources of different services (such as URLLC and eMBB) can be determined independently of each other, which can meet the requirements of high reliability and low latency when performing HARQ feedback in certain scenarios (such as URLLC).
  • PUCCH resources of different services such as URLLC and eMBB
  • An embodiment of the present invention provides a method for receiving feedback information, which will be described from the network device side (that is, the receiving side of the feedback information), and the same content as that in Embodiment 1 will not be repeated.
  • FIG. 6 is a schematic diagram of a feedback information receiving method according to an embodiment of the present invention. As shown in FIG. 6, the method includes:
  • Step 601 the network device sends one or more DCIs to the terminal device.
  • the network device can also send data information through the PDSCH.
  • the PDCCH, DCI, and PDSCH, and how to send and receive refer to the prior art.
  • Step 602 the network device receives HARQ feedback information sent by the terminal device using PUCCH resources; wherein, the PUCCH resource is determined by the terminal device according to the received multiple DCIs that point to the same time slot and the same PUCCH resource One DCI.
  • the multiple DCIs may first sort different serving cell indexes of the same physical downlink control channel (PDCCH) detection opportunity index, and then sort the different PDCCH detection opportunity indexes in ascending order.
  • PDCCH physical downlink control channel
  • the same PUCCH resource is determined at least according to the identifier of the PUCCH resource set and the indication value of the PUCCH resource.
  • the identifier of the PUCCH resource set is the value of the parameter PUCCH-ResourceSetId in the PUCCH configuration information PUCCH-config;
  • the indication value of the PUCCH resource is the value ⁇ PRI of the PUCCH resource indication field in DCI format 1_0 or DCI format 1_1.
  • the HARQ feedback information forms a semi-static codebook; the terminal device determines a set including one or more candidate PDSCH reception or semi-static scheduling (SPS) physical downlink shared channel (PDSCH) release.
  • SPS semi-static scheduling
  • the monitoring time window for the candidate PDSCH reception or SPS PDSCH release is less than a predetermined value. For example, the size of the set of time slot offsets K 1 between the PDSCH and HARQ feedback associated with the activated uplink partial bandwidth (BWP) that needs to be monitored is reduced.
  • the HARQ feedback information is sent separately according to the type of PDSCH.
  • the HARQ feedback information of the first service carries feedback information bits of the PDSCH of the first type
  • the HARQ feedback information of the second service having a different priority from the first service carries the second type The PDSCH feedback information bit.
  • the HARQ feedback information forms a dynamic codebook; the terminal device determines a PDCCH detection opportunity for scheduling DCI reception of PDSCH reception or SPS PDSCH release.
  • the terminal device further adjusts the PDCCH detection opportunity according to the processing capability parameter N 3 .
  • the terminal device when the terminal device detects that the first DCI indicates the first resource sent by the PUCCH carrying the corresponding feedback information in a time slot, and then detects the second DCI indication in the same time slot In the case of the second resource sent by the PUCCH carrying the corresponding feedback information,
  • the terminal device determines that the PUCCH resource in the time slot does not return Use the feedback information corresponding to the second DCI, or the terminal device does not expect to multiplex the feedback information corresponding to the second DCI on the PUCCH resources in the time slot.
  • the network device may also calculate a counted downlink allocation indication (C-DAI) and a total downlink allocation indication (T-DAI); wherein, the DCI indication used to calculate the C-DAI and the T-DAI HARQ feedback information is sent on the same time slot and the same PUCCH resource; and the network device sends the count downlink assignment indication (C-DAI) and total downlink assignment indication (T-DAI) to the terminal device.
  • C-DAI counted downlink allocation indication
  • T-DAI total downlink allocation indication
  • the terminal device determines the PUCCH resource for sending HARQ feedback information according to one DCI among the multiple DCIs that point to the same time slot and the same PUCCH resource. Therefore, PUCCH resources of different services (such as URLLC and eMBB) can be determined independently of each other, which can meet the requirements of high reliability and low latency when performing HARQ feedback in certain scenarios (such as URLLC).
  • PUCCH resources of different services such as URLLC and eMBB
  • An embodiment of the present invention provides a feedback information sending device.
  • the apparatus may be, for example, a terminal device, or may be one or some components or components configured on the terminal device.
  • the content of the third embodiment is the same as that of the first embodiment.
  • the apparatus 700 for sending feedback information includes:
  • Information determination unit 701 which determines the feedback information of the hybrid automatic repeat request
  • Resource determination unit 702 which determines the physical uplink control channel that sends the feedback information of the hybrid automatic repeat request according to one piece of downlink control information received from multiple pieces of downlink control information that points to the same time slot and the same physical uplink control channel resource Resources;
  • the multiple downlink control information may first sort the different serving cell indexes of the same physical downlink control channel detection opportunity index in ascending order, and then sort the different physical downlink control channel detection opportunity indexes in ascending order.
  • the same physical uplink control channel resource is determined based at least on the identifier of the physical uplink control channel resource set and the indicator value of the physical uplink control channel resource.
  • the identifier of the physical uplink control channel resource set is the value of the parameter PUCCH-ResourceSetId in the physical uplink control channel configuration information PUCCH-config; the indicator value of the physical uplink control channel resource is the downlink control information format 1_0 or the value ⁇ PRI of the physical uplink control channel resource indication field in the downlink control information format 1_1.
  • the hybrid automatic repeat request feedback information forms a semi-static codebook.
  • the resource determination unit 702 may also be used to determine a set containing one or more candidate physical downlink shared channel receptions or semi-static physical downlink shared channel releases.
  • the monitoring time window for the candidate physical downlink shared channel reception or semi-statically scheduled physical downlink shared channel release is less than a predetermined value.
  • the size of the set of time slot offsets K 1 between the physical downlink shared channel and the hybrid automatic repeat request feedback associated with the activated upstream partial bandwidth that needs to be monitored is reduced.
  • the feedback information of the hybrid automatic repeat request is sent separately according to different types of physical downlink shared channels.
  • the feedback information of the hybrid automatic retransmission request of the first service carries feedback information bits of a physical downlink shared channel of the first type
  • the second service has a priority of a second service different from the first service.
  • the feedback information of the hybrid automatic repeat request carries the feedback information bits of the second type of physical downlink shared channel.
  • the hybrid automatic repeat request feedback information forms a dynamic codebook.
  • the resource determination unit 702 may also be used to determine a physical downlink control channel detection opportunity for scheduling downlink control information received by the physical downlink shared channel or released by semi-static scheduling of the physical downlink shared channel.
  • a physical downlink shared channel time-domain resource allocation slot offset K 1 physical uplink control channel and the physical resource set identifier
  • the indication value ⁇ PRI of the uplink control channel resource makes the hybrid automatic retransmission request feedback information received by the physical downlink shared channel or released by the semi-statically scheduled physical downlink shared channel in the same time slot and on the same physical uplink control channel resource send.
  • the resource determination unit 702 may be further configured to: adjust the set of candidate physical downlink shared channel reception or semi-statically scheduled physical downlink shared channel release according to the processing capability parameter N 3 , or adjust the physical downlink control channel Detection opportunities.
  • the first downlink control information detected in one time slot indicates the first resource sent by the physical uplink control channel carrying the corresponding feedback information
  • the second downlink control is detected in the same time slot In the case that the information indicates the second resource sent by the physical uplink control channel carrying the corresponding feedback information
  • the Feedback information corresponding to the second downlink control information is not multiplexed on the physical uplink control channel resource, or it is not desired to multiplex the second downlink control information corresponding to the second downlink control information on the physical uplink control channel resource in the time slot Feedback.
  • the apparatus 700 for sending feedback information may further include:
  • the receiving unit 704 receives one or more DCIs sent by the network device.
  • the receiving unit 704 may also be used to receive a count downlink allocation indication and a total downlink allocation indication; wherein, the downlink control information indication used to calculate the count downlink allocation indication and the total downlink allocation indication is in the same
  • the hybrid automatic repeat request feedback information is sent on the time slot and on the same physical uplink control channel resource.
  • the apparatus 700 for sending feedback information may further include other components or modules.
  • the apparatus 700 for sending feedback information may further include other components or modules.
  • FIG. 7 only exemplarily shows the connection relationship or signal direction between various components or modules, but those skilled in the art should understand that various related technologies such as bus connection can be used.
  • the above-mentioned various components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present invention does not limit this.
  • the terminal device determines the PUCCH resource for sending HARQ feedback information according to one DCI among the multiple DCIs that point to the same time slot and the same PUCCH resource. Therefore, PUCCH resources of different services (such as URLLC and eMBB) can be determined independently of each other, which can meet the requirements of high reliability and low latency when performing HARQ feedback in certain scenarios (such as URLLC).
  • PUCCH resources of different services such as URLLC and eMBB
  • An embodiment of the present invention provides a feedback information receiving device.
  • the apparatus may be, for example, a network device, or may be one or some components or components configured on the network device.
  • the contents of this Embodiment 4 that are the same as those of Embodiment 1 or 2 will not be repeated.
  • FIG. 8 is a schematic diagram of a feedback information receiving apparatus according to an embodiment of the present invention. As shown in FIG. 8, the feedback information receiving apparatus 800 includes:
  • a sending unit 801 which sends one or more DCIs to the terminal device.
  • the receiving unit 802 receives hybrid automatic retransmission request feedback information sent by a terminal device using physical uplink control channel resources; wherein the physical uplink control channel resource is directed by the terminal device to the same time slot and the same physical uplink according to the received One of the downlink control information of the plurality of downlink control information of the control channel resource is determined.
  • the same physical uplink control channel resource is determined based at least on the identifier of the physical uplink control channel resource set and the indicator value of the physical uplink control channel resource.
  • the feedback information of the hybrid automatic repeat request forms a semi-static codebook; the terminal device determines a set containing one or more candidate physical downlink shared channel receptions or semi-statically scheduled physical downlink shared channel releases.
  • the feedback information of the hybrid automatic repeat request forms a dynamic codebook; the physical downlink determined by the terminal device is used for scheduling downlink control information for receiving physical downlink shared channels or releasing semi-statically scheduled physical downlink shared channels. Control channel detection opportunities.
  • the feedback information receiving apparatus 800 may further include:
  • a calculation unit 803 which calculates the counted downlink allocation indication and the total downlink allocation indication; wherein, the downlink control information used to calculate the counted downlink allocation indication and the total downlink allocation indication is in the same time slot and the same physical uplink control channel Send mixed automatic retransmission request feedback information on resources; and
  • the sending unit 801 may be further configured to send the count downlink allocation indication and the total downlink allocation indication to the terminal device.
  • the feedback information receiving device 800 may further include other components or modules. For specific contents of these components or modules, reference may be made to related technologies.
  • FIG. 8 only exemplarily shows the connection relationship or signal direction between various components or modules, but those skilled in the art should understand that various related technologies such as bus connection may be used.
  • the above-mentioned various components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present invention does not limit this.
  • the terminal device determines the PUCCH resource for sending HARQ feedback information according to one DCI among the multiple DCIs that point to the same time slot and the same PUCCH resource. Therefore, PUCCH resources of different services (such as URLLC and eMBB) can be determined independently of each other, which can meet the requirements of high reliability and low latency when performing HARQ feedback in certain scenarios (such as URLLC).
  • PUCCH resources of different services such as URLLC and eMBB
  • an embodiment of the present invention also provides a communication system.
  • the communication system 100 may include:
  • the terminal device 102 determines the feedback information of the hybrid automatic retransmission request; determines to send the hybrid automatic retransmission according to one piece of downlink control information received from multiple pieces of downlink control information directed to the same time slot and the same physical uplink control channel resource A physical uplink control channel resource requesting feedback information; and using the determined physical uplink control channel resource to send the hybrid automatic retransmission request feedback information;
  • the network device 101 sends one or more downlink control information to the terminal device; and receives the hybrid automatic retransmission request feedback information sent by the terminal device 102 using the physical uplink control channel resource.
  • An embodiment of the present invention further provides a network device, which may be, for example, a base station, but the present invention is not limited to this, and may also be other network devices.
  • a network device which may be, for example, a base station, but the present invention is not limited to this, and may also be other network devices.
  • the network device 900 may include: a processor 910 (for example, a central processing unit CPU) and a memory 920; the memory 920 is coupled to the processor 910.
  • the memory 920 can store various data; in addition, a program 930 for information processing is stored, and the program 930 is executed under the control of the processor 910.
  • the processor 910 may be configured to execute a program to implement the feedback information receiving method as described in Embodiment 2.
  • the processor 910 may be configured to perform the following control: send one or more downlink control information to the terminal device; and receive feedback information of the hybrid automatic repeat request sent by the terminal device using the physical uplink control channel resource; wherein, the physical The uplink control channel resource is determined by the terminal device according to one of the received downlink control information that points to the same time slot and the same physical uplink control channel resource.
  • the network device 900 may further include: a transceiver 940 and an antenna 950, etc.; where the functions of the above components are similar to those in the prior art, and will not be described here. It is worth noting that the network device 900 does not necessarily include all the components shown in FIG. 9; in addition, the network device 900 may also include components not shown in FIG. 9, and reference may be made to the prior art.
  • An embodiment of the present invention further provides a terminal device, but the present invention is not limited to this, and may also be other devices.
  • the terminal device 1000 may include a processor 1010 and a memory 1020; the memory 1020 stores data and programs, and is coupled to the processor 1010. It is worth noting that the figure is exemplary; other types of structures can also be used to supplement or replace the structure to implement telecommunications functions or other functions.
  • the processor 1010 may be configured to execute a program to implement the feedback information transmission method as described in Embodiment 1.
  • the processor 1010 may be configured to perform the following control: determine the feedback information of the hybrid automatic repeat request; according to one of the received downlink control information directed to the same time slot and the same physical uplink control channel resource, Determining a physical uplink control channel resource that sends the hybrid automatic repeat request feedback information; and using the determined physical uplink control channel resource to send the hybrid automatic repeat request feedback information.
  • the terminal device 1000 may further include: a communication module 1030, an input unit 1040, a display 1050, and a power supply 1060. Among them, the functions of the above components are similar to those in the prior art, and will not be repeated here. It is worth noting that the terminal device 1000 does not necessarily include all the components shown in FIG. 10, and the above components are not necessary; in addition, the terminal device 1000 may also include components not shown in FIG. Have technology.
  • An embodiment of the present invention also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the feedback information sending method described in Embodiment 1.
  • An embodiment of the present invention also provides a storage medium storing a computer program, wherein the computer program causes the terminal device to execute the feedback information sending method described in Embodiment 1.
  • An embodiment of the present invention also provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the feedback information receiving method described in Embodiment 2.
  • An embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program causes the network device to execute the feedback information receiving method described in Embodiment 2.
  • the above device and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to such a computer-readable program which, when executed by a logic component, can enable the logic component to implement the above-described device or constituent component, or enable the logic component to implement the various methods described above Or steps.
  • the invention also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memories, and so on.
  • the method/apparatus described in conjunction with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams and/or one or more combinations of the functional block diagrams shown in the figures may correspond to each software module of the computer program flow or each hardware module.
  • These software modules can respectively correspond to the steps shown in the figure.
  • These hardware modules can be realized by solidifying these software modules using, for example, a field programmable gate array (FPGA).
  • FPGA field programmable gate array
  • the software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium may be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module may be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • the functional blocks described in the drawings and/or one or more combinations of the functional blocks it can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in the present invention ), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessing Processor, one or more microprocessors in communication with the DSP, or any other such configuration.
  • Appendix 1 A method for sending feedback information, including:
  • the terminal device determines the hybrid automatic repeat request (HARQ) feedback information
  • the terminal device determines a PUCCH resource to send the HARQ feedback information according to one DCI of a plurality of downlink control information (DCI) received that points to the same time slot and the same physical uplink control channel (PUCCH) resource; and
  • DCI downlink control information
  • the terminal device uses the determined PUCCH resource to send the HARQ feedback information.
  • Appendix 2 The method according to Appendix 1, wherein the multiple DCIs first sort the different serving cell indexes of the same physical downlink control channel (PDCCH) detection opportunity index in ascending order, and then the different physical downlink control channels ( PDCCH) detection opportunity indexes are arranged in ascending order.
  • PDCCH physical downlink control channel
  • Appendix 3 The method according to Appendix 1 or 2, wherein the same PUCCH resource is determined at least according to the identifier of the PUCCH resource set and the indication value of the PUCCH resource.
  • Appendix 4 The method according to Appendix 3, wherein the identifier of the PUCCH resource set is the value of a parameter (eg, PUCCH-ResourceSetId) in PUCCH configuration information (eg, PUCCH-config);
  • a parameter eg, PUCCH-ResourceSetId
  • PUCCH configuration information eg, PUCCH-config
  • the indication value of the PUCCH resource is the value of the PUCCH resource indication field (for example, ⁇ PRI ) in the DCI format (for example, DCI format 1_0 or DCI format 1_1).
  • Appendix 5 The method according to any one of Appendixes 1 to 4, wherein the HARQ feedback information forms a semi-static codebook; the method further includes:
  • the terminal device determines a set including one or more candidate PDSCH receptions or semi-static scheduling (SPS) physical downlink shared channel (PDSCH) releases.
  • SPS semi-static scheduling
  • PDSCH physical downlink shared channel
  • Appendix 6 The method according to Appendix 5, wherein the monitoring time window for the candidate PDSCH reception or SPS PDSCH release is less than a predetermined value.
  • Appendix 7 The method according to Appendix 6, wherein the size of the set of time slot offsets K 1 between the PDSCH and HARQ feedback associated with the activated uplink partial bandwidth (BWP) to be monitored is reduced .
  • Appendix 8 The method according to Appendix 5, wherein the HARQ feedback information is sent separately according to the type of PDSCH.
  • Appendix 9 The method according to Appendix 8, wherein the HARQ feedback information of the first service carries the feedback information bits of the PDSCH of the first type, and has the second service of a different priority from the first service
  • the HARQ feedback information carries feedback information bits of the second type of PDSCH.
  • Appendix 10 The method according to any one of Appendixes 1 to 4, wherein the HARQ feedback information forms a dynamic code book; the method further includes:
  • the terminal device determines a PDCCH detection opportunity for scheduling the DCI for PDSCH reception or SPS PDSCH release.
  • Appendix The Appendix claim 10, wherein, according to a slot between the PDSCH and the HARQ feedback offset K 1, PDSCH resource allocation time domain slot offset K 0, PUCCH and PUCCH resource set identifier
  • the indicator value ⁇ PRI of the resource causes HARQ feedback information received by the PDSCH or released by the SPS PDSCH to be sent on the same time slot and the same PUCCH resource.
  • Appendix 12 The method according to any one of Appendixes 1 to 11, wherein the method further comprises:
  • the terminal device also adjusts the set of candidate PDSCH reception or SPS PDSCH release according to the processing capability parameter N 3 , or adjusts the PDCCH detection opportunity.
  • Appendix 13 The method according to Appendix 12, wherein the terminal device detects that the first DCI indicates the first resource sent by the PUCCH carrying the corresponding feedback information in a time slot and is in the same time slot When it is detected that the second DCI indicates the second resource sent by the PUCCH carrying the corresponding feedback information,
  • the terminal device determines that the PUCCH resource in the time slot does not return Use the feedback information corresponding to the second DCI, or the terminal device does not expect to multiplex the feedback information corresponding to the second DCI on the PUCCH resources in the time slot.
  • Appendix 14 The method according to Appendix 10, wherein the method further comprises:
  • the terminal device receives the counted downlink allocation indication (C-DAI) and the total downlink allocation indication (T-DAI) sent by the network device; wherein, the DCI indication used for calculating the C-DAI and the T-DAI is the same HARQ feedback information is sent on one slot and on the same PUCCH resource.
  • C-DAI counted downlink allocation indication
  • T-DAI total downlink allocation indication
  • Appendix 15 A method for receiving feedback information, including:
  • the network device sends one or more downlink control information to the terminal device;
  • the network device receives HARQ feedback information sent by the terminal device using PUCCH resources; wherein the PUCCH resource is determined by the terminal device according to multiple received resources that point to the same time slot and the same physical uplink control channel (PUCCH) resource One DCI in the downlink control information (DCI) is determined.
  • PUCCH resources wherein the PUCCH resource is determined by the terminal device according to multiple received resources that point to the same time slot and the same physical uplink control channel (PUCCH) resource
  • PUCCH physical uplink control channel
  • Appendix 16 The method according to Appendix 15, wherein the multiple DCIs first sort the different serving cell indexes of the same physical downlink control channel (PDCCH) detection opportunity index in ascending order, and then the different physical downlink control channels ( PDCCH) detection opportunity indexes are arranged in ascending order.
  • PDCCH physical downlink control channel
  • Appendix 17 The method according to Appendix 15 or 16, wherein the same PUCCH resource is determined at least according to the identifier of the PUCCH resource set and the indication value of the PUCCH resource.
  • Appendix 18 The method according to Appendix 17, wherein the identifier of the PUCCH resource set is the value of a parameter (such as PUCCH-ResourceSetId) in PUCCH configuration information (such as PUCCH-config);
  • a parameter such as PUCCH-ResourceSetId
  • PUCCH configuration information such as PUCCH-config
  • the indication value of the PUCCH resource is the value of the PUCCH resource indication field (for example, ⁇ PRI ) in the DCI format (for example, DCI format 1_0 or DCI format 1_1).
  • Appendix 19 The method according to any one of Appendixes 15 to 18, wherein the HARQ feedback information forms a semi-static codebook; the terminal device determines to include one or more candidate PDSCH reception or semi-static scheduling ( SPS) Physical Downlink Shared Channel (PDSCH) release set.
  • SPS semi-static scheduling
  • PDSCH Physical Downlink Shared Channel
  • Appendix 20 The method according to Appendix 19, wherein the monitoring time window of the candidate PDSCH reception or SPS PDSCH release is less than a predetermined value.
  • Appendix 21 The method according to Appendix 20, wherein the size of the set of time slot offsets K 1 between the PDSCH and HARQ feedback associated with the activated uplink partial bandwidth (BWP) to be monitored is reduced .
  • Appendix 22 The method according to Appendix 19, wherein the HARQ feedback information is sent separately according to the type of PDSCH.
  • Appendix 23 The method according to Appendix 22, wherein the HARQ feedback information of the first service carries feedback information bits of the PDSCH of the first type, and has a second service of different priority from the first service.
  • the HARQ feedback information carries feedback information bits of the second type of PDSCH.
  • Appendix 24 The method according to any one of Appendixes 15 to 18, wherein the HARQ feedback information forms a dynamic codebook; the PDCCH detection by the terminal device to determine the DCI for scheduling PDSCH reception or SPS PDSCH release opportunity.
  • Appendix 25 according to Appendix 24, wherein, according to a slot between the PDSCH and the HARQ feedback offset K 1, PDSCH resource allocation time domain slot offset K 0, PUCCH and PUCCH resource set identifier
  • the indicator value ⁇ PRI of the resource causes HARQ feedback information received by the PDSCH or released by the SPS PDSCH to be sent on the same time slot and the same PUCCH resource.
  • Appendix 26 according to Appendix 24, wherein the terminal device further parameter N 3 opportunity to adjust the PDCCH detection processing capability.
  • Supplement 27 The method according to supplement 26, wherein the terminal device detects that the first DCI indicates the first resource sent by the PUCCH carrying the corresponding feedback information in a time slot, and is in the same time slot When it is detected that the second DCI indicates the second resource sent by the PUCCH carrying the corresponding feedback information,
  • the terminal device determines that the PUCCH resource in the time slot does not return Use the feedback information corresponding to the second DCI, or the terminal device does not expect to multiplex the feedback information corresponding to the second DCI on the PUCCH resources in the time slot.
  • Appendix 28 The method according to Appendix 24, wherein the method further comprises:
  • the network device calculates a counted downlink allocation indication (C-DAI) and a total downlink allocation indication (T-DAI); wherein, the DCI indication used to calculate the C-DAI and the T-DAI is in the same time slot and Send HARQ feedback information on the same PUCCH resource; and
  • the network device sends the count downlink assignment indication (C-DAI) and the total downlink assignment indication (T-DAI) to the terminal device.
  • C-DAI count downlink assignment indication
  • T-DAI total downlink assignment indication
  • Appendix 29 A method for sending feedback information, including:
  • the terminal device determines a set containing one or more candidate PDSCH receptions or semi-static scheduling (SPS) physical downlink shared channels (PDSCH) release;
  • SPS semi-static scheduling
  • PDSCH physical downlink shared channels
  • the monitoring time window for the candidate PDSCH reception or SPS PDSCH release is less than a predetermined value.
  • Appendix 30 The method according to Appendix 29, wherein the size of the set of time slot offsets K 1 between the PDSCH and HARQ feedback associated with the activated uplink partial bandwidth (BWP) to be monitored is reduced .
  • a method for sending feedback information including:
  • the terminal device determines a set containing one or more candidate PDSCH receptions or semi-static scheduling (SPS) physical downlink shared channels (PDSCH) release;
  • SPS semi-static scheduling
  • PDSCH physical downlink shared channels
  • HARQ feedback information is sent separately according to the type of PDSCH.
  • Appendix 32 The method according to Appendix 31, wherein the HARQ feedback information of the first service carries feedback information bits of the PDSCH of the first type, and has a second service of a different priority from the first service.
  • the HARQ feedback information carries feedback information bits of the second type of PDSCH.
  • Appendix 33 A method for sending feedback information, including:
  • the terminal device determines a PDCCH detection opportunity for scheduling the DCI for PDSCH reception or SPS PDSCH release;
  • HARQ feedback information released by the SPS PDSCH is sent on the same time slot and the same PUCCH resource.
  • a terminal device including a memory and a processor, the memory stores a computer program, the processor is configured to execute the computer program to implement any one of supplements 1 to 14, 29 to 33 The method for sending the feedback information.
  • a network device including a memory and a processor, the memory stores a computer program, the processor is configured to execute the computer program to implement the feedback according to any one of Appendix 15 to 28 Information receiving method.

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Abstract

Les modes de réalisation de la présente invention concernent un procédé et un appareil d'émission et de réception d'informations de rétroaction. Le procédé comporte des étapes lors desquelles un dispositif terminal: détermine des informations de rétroaction de HARQ, détermine, selon une DCI d'une pluralité de DCI reçues pointant vers le même créneau temporel et la même ressource de PUCCH, une ressource de PUCCH pour émettre les informations de rétroaction de HARQ, et émet les informations de rétroaction de HARQ en utilisant la ressource de PUCCH déterminée. Par conséquent, les ressources de PUCCH de différents services peuvent être déterminées indépendamment les unes des autres pour satisfaire les exigences d'ultra-fiablilité et de faible latence de certaines scènes pendant la rétroaction de HARQ.
PCT/CN2019/071179 2019-01-10 2019-01-10 Procédé et appareil d'émission et de réception d'informations de rétroaction Ceased WO2020142985A1 (fr)

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