WO2022077295A1 - Procédé et appareil de planification conjointe de multiples blocs de transport, dispositif de communication et support d'enregistrement - Google Patents

Procédé et appareil de planification conjointe de multiples blocs de transport, dispositif de communication et support d'enregistrement Download PDF

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Publication number
WO2022077295A1
WO2022077295A1 PCT/CN2020/120976 CN2020120976W WO2022077295A1 WO 2022077295 A1 WO2022077295 A1 WO 2022077295A1 CN 2020120976 W CN2020120976 W CN 2020120976W WO 2022077295 A1 WO2022077295 A1 WO 2022077295A1
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Prior art keywords
dci
indication
control information
downlink control
dedicated
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PCT/CN2020/120976
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English (en)
Chinese (zh)
Inventor
乔雪梅
牟勤
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202080002738.5A priority Critical patent/CN112514316B/zh
Priority to PCT/CN2020/120976 priority patent/WO2022077295A1/fr
Publication of WO2022077295A1 publication Critical patent/WO2022077295A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present disclosure relates to the field of wireless communication technologies, but is not limited to the field of wireless communication technologies, and in particular, to a method, apparatus, communication device, and storage medium for jointly scheduling multiple transmission blocks.
  • a new type of equipment is introduced, namely reduced capability user equipment (Redcap UE, reduced capability user equipment).
  • the reduced capability user equipment (Redcap UE) usually needs to meet the following requirements: 1. Low cost and low complexity; 2. Coverage enhancement; 3. Power saving. Since the new radio interface (NR, New Radio) is designed for high-end terminals such as high-speed and low-latency, it cannot meet the above requirements. Therefore, new radio (NR) systems need to be retrofitted to meet the above requirements.
  • NR New Radio
  • the base station uses Downlink Control Information (DCI, Downlink Control Information) signaling to schedule physical resources and modulation and coding formats required by a transmission block (TB, Transmission Block). Since the terminal cannot know the specific bearing position of the downlink control information (DCI), the terminal needs to perform blind detection in the search space when receiving the downlink control information (DCI). In this way, the blind detection of the terminal is highly complex, and multiple blind detections need to be performed. Excessive blind detection times will increase the power consumption of the terminal and cannot meet the power saving requirement.
  • DCI Downlink Control Information
  • DCI Downlink Control Information
  • the embodiments of the present disclosure disclose a method, an apparatus, a communication device, and a storage medium for jointly scheduling multiple transmission blocks.
  • a method for jointly scheduling multiple transport blocks wherein, applied in a base station, the method includes:
  • DCI Send downlink control information (DCI) of multiple transport blocks (TB);
  • the downlink control information includes: common downlink control information (DCI) and multiple dedicated downlink control information (DCI) corresponding to the multiple transport blocks (TB) one-to-one;
  • DCI common downlink control information
  • DCI carrying the indication information of the time-frequency domain position for transmitting the dedicated downlink control information
  • DCI downlink control information
  • the dedicated downlink control information is used to carry scheduling information of the corresponding transport block (TB).
  • the common downlink control information (DCI) is issued before the dedicated downlink control information (DCI).
  • the common downlink control information includes at least one of the following: a format indication for distinguishing uplink scheduling and downlink scheduling, a bandwidth part (BWP) indication, and jointly scheduled transport blocks (TBs) number, Hybrid Automatic Repeat Request (HARQ) starting process number and slot offset indication.
  • DCI includes at least one of the following: a format indication for distinguishing uplink scheduling and downlink scheduling, a bandwidth part (BWP) indication, and jointly scheduled transport blocks (TBs) number, Hybrid Automatic Repeat Request (HARQ) starting process number and slot offset indication.
  • the dedicated downlink control information includes at least one of the following: modulation and coding strategy information (MCS) and time-frequency domain resource allocation information.
  • MCS modulation and coding strategy information
  • the common downlink control information includes: common downlink control information (DCI) for uplink scheduling and common downlink control information (DCI) for downlink scheduling; wherein the common downlink control information (DCI) for uplink scheduling
  • DCI common downlink control information
  • the number of bits of the scheduled common downlink control information (DCI) and the common downlink control information (DCI) used for downlink scheduling are the same.
  • the method further includes:
  • the indication mode includes:
  • a first indication manner used to indicate that the common downlink control information (DCI) explicitly indicates the indication information
  • the second indication mode is used to indicate that the common downlink control information (DCI) implicitly indicates the indication information.
  • DCI downlink control information
  • the information of the sending indication mode includes:
  • RRC radio resource control
  • the common downlink control information (DCI) carries time-frequency domain location information for transmitting the dedicated downlink control information (DCI) in a time slot;
  • the common downlink control information implicitly indicates the time-frequency domain position for transmitting the dedicated downlink control information (DCI) in the time slot and the transmission of the common downlink control information
  • the time-frequency domain location of the information (DCI) is the same.
  • the time-frequency domain location of the user-specific search space (USS) used to carry the common downlink control information (DCI) is different from that for transmitting the dedicated downlink Time-frequency domain location of control information (DCI).
  • the dedicated downlink control information (DCI) of the transport block (TB) transmitted by the first one of the plurality of transport blocks (TBs) is in the time slot in which the common downlink control information (DCI) is transmitted transmitted on adjacent time slots.
  • the common downlink control information (DCI) carries a time slot position indication of the dedicated downlink control information (DCI); the time slot position indication is used to indicate the transmission of the dedicated downlink control information (DCI) ) transmission method.
  • the transmission method for transmitting dedicated downlink control information (DCI) includes:
  • the first transmission mode the dedicated downlink control information (DCI) of each transport block (TB) is sequentially transmitted on non-consecutive time slots;
  • DCI dedicated downlink control information
  • the second transmission mode the dedicated downlink control information (DCI) of each transport block (TB) is sequentially transmitted on consecutive time slots.
  • DCI dedicated downlink control information
  • the dedicated downlink control information (DCI) of the Nth transport block (TB) is transmitted after the (N-th transmission block) is completed.
  • the transmission is performed on the first time slot after the time slots of the transport blocks (TB); wherein, the N is a positive integer, and the N is the number of the plurality of transport blocks (TB).
  • the common downlink control information (DCI) carries a time slot offset indication, and the time slot offset indication is used to indicate the time slot in which the transport block (TB) is transmitted and the time slot in which the transport block is transmitted.
  • the dedicated downlink control information (DCI) carries a symbol position indication; the symbol position indication is used to indicate the start symbol position and symbol length of the transport block (TB) transmitted in the time slot.
  • a method for jointly scheduling multiple transport blocks includes: receiving downlink control information (DCI) of multiple transport blocks (TBs). Downlink Control Information (DCI);
  • the downlink control information includes: common downlink control information (DCI) and multiple dedicated downlink control information (DCI) corresponding to the multiple transport blocks (TB) one-to-one;
  • DCI common downlink control information
  • DCI carrying the indication information of the time-frequency domain position for transmitting the dedicated downlink control information
  • DCI downlink control information
  • the dedicated downlink control information is used to carry scheduling information for a single transport block (TB).
  • the common downlink control information (DCI) is received prior to the dedicated downlink control information (DCI).
  • the common downlink control information includes at least one of the following: a format indication for distinguishing uplink scheduling from downlink scheduling, a bandwidth part (BWP, Bandwidth Part) indication, a jointly scheduled transport block (TB) number and slot offset indication.
  • DCI includes at least one of the following: a format indication for distinguishing uplink scheduling from downlink scheduling, a bandwidth part (BWP, Bandwidth Part) indication, a jointly scheduled transport block (TB) number and slot offset indication.
  • the dedicated downlink control information includes at least one of the following: modulation and coding strategy information (MCS, Modulation and Coding Scheme) and time-frequency domain resource allocation information.
  • MCS modulation and coding strategy information
  • MCS Modulation and Coding Scheme
  • the common downlink control information includes: common downlink control information (DCI) for uplink scheduling and common downlink control information (DCI) for downlink scheduling; wherein the common downlink control information (DCI) for uplink scheduling
  • DCI common downlink control information
  • the number of bits of the scheduled common downlink control information (DCI) and the common downlink control information (DCI) used for downlink scheduling are the same.
  • the method further includes:
  • the indication mode includes:
  • a first indication manner used to indicate that the common downlink control information (DCI) explicitly indicates the indication information
  • the second indication manner is used to indicate that the common downlink control information (DCI) implicitly indicates the indication information.
  • DCI downlink control information
  • the information of the receiving instruction mode includes:
  • RRC radio resource control
  • the common downlink control information (DCI) carries time-frequency domain location information for transmitting the dedicated downlink control information (DCI) in a time slot;
  • the common downlink control information implicitly indicates the time-frequency domain position for transmitting the dedicated downlink control information (DCI) in the time slot and the transmission of the common downlink control information
  • the time-frequency domain location of the information (DCI) is the same.
  • the time-frequency domain location of the user-specific search space (USS) used to carry the common downlink control information (DCI) is different from that for transmitting the dedicated downlink Time-frequency domain location of control information (DCI).
  • the dedicated downlink control information (DCI) of the transport block (TB) transmitted by the first one of the plurality of transport blocks (TBs) is in the time slot in which the common downlink control information (DCI) is received. received on adjacent time slots.
  • the common downlink control information (DCI) carries a time slot position indication of the dedicated downlink control information (DCI); the time slot position indication is used to indicate the transmission of the dedicated downlink control information (DCI) ) transmission method.
  • the transmission method for transmitting dedicated downlink control information (DCI) includes:
  • the first transmission mode the dedicated downlink control information (DCI) of each transport block (TB) is sequentially transmitted on non-consecutive time slots;
  • DCI dedicated downlink control information
  • the second transmission mode the dedicated downlink control information (DCI) of each transport block (TB) is sequentially transmitted on consecutive time slots.
  • DCI dedicated downlink control information
  • the dedicated downlink control information (DCI) of the Nth transport block (TB) is transmitted after the (N-th transmission block) is completed.
  • the transmission is performed on the first time slot after the time slots of the transport blocks (TB); wherein, the N is a positive integer, and the N is the number of the plurality of transport blocks (TB).
  • the common downlink control information (DCI) carries a time slot offset indication, and the time slot offset indication is used to indicate the time slot in which the transport block (TB) is transmitted and the time slot in which the transport block is transmitted.
  • the dedicated downlink control information (DCI) carries a symbol position indication; the symbol position indication is used to indicate the start symbol position and symbol length of the transport block (TB) transmitted in the time slot.
  • an apparatus for jointly scheduling multiple transport blocks wherein, when applied to a base station, the apparatus includes a delivery module, wherein:
  • the sending module is configured to send downlink control information (DCI) of multiple transport blocks (TB);
  • DCI downlink control information
  • TB transport blocks
  • the downlink control information includes: common downlink control information (DCI) and multiple dedicated downlink control information (DCI) corresponding to the multiple transport blocks (TB) one-to-one;
  • the common downlink control information (DCI) carries the indication information of the time-frequency domain position for transmitting the dedicated downlink control information (DCI);
  • DCI downlink control information
  • the dedicated downlink control information is used to carry scheduling information of the corresponding transport block (TB).
  • an apparatus for jointly scheduling multiple transport blocks wherein, when applied in a terminal, the apparatus includes a receiving module, wherein,
  • the receiving module is configured to receive downlink control information (DCI) of a plurality of transport blocks (TBs);
  • DCI downlink control information
  • the downlink control information includes: common downlink control information (DCI) and multiple dedicated downlink control information (DCI) corresponding to the multiple transport blocks (TB) one-to-one;
  • DCI common downlink control information
  • DCI carrying the indication information of the time-frequency domain position for transmitting the dedicated downlink control information
  • DCI downlink control information
  • the dedicated downlink control information is used to carry scheduling information of the corresponding transport block (TB).
  • a communication device comprising:
  • a memory for storing the processor-executable instructions
  • the processor is configured to: when executing the executable instructions, implement the method described in any embodiment of the present disclosure.
  • a computer storage medium stores a computer-executable program, and when the executable program is executed by a processor, implements the method described in any embodiment of the present disclosure.
  • downlink control information (DCI) of multiple transport blocks (TB) is delivered; wherein, the downlink control information (DCI) includes: common downlink control information (DCI) and a Block (TB) one-to-one corresponding multiple dedicated downlink control information (DCI); the common downlink control information (DCI) carries the indication information of the time-frequency domain position for transmitting the dedicated downlink control information (DCI); The common downlink control information (DCI) is used to carry the common scheduling information for the multiple transport blocks (TBs); the dedicated downlink control information (DCI) is used to carry the corresponding scheduling information.
  • DCI downlink control information
  • DCI includes: common downlink control information (DCI) and a Block (TB) one-to-one corresponding multiple dedicated downlink control information (DCI);
  • the common downlink control information (DCI) carries the indication information of the time-frequency domain position for transmitting the dedicated downlink control information (DCI);
  • the common downlink control information (DCI) is used to carry the common scheduling information for the multiple
  • the common downlink control information (DCI) carries the indication information of the time-frequency domain location for transmitting the dedicated downlink control information (DCI)
  • the terminal By using the indication information of the common downlink control information (DCI), the time-frequency domain position of the dedicated downlink control information (DCI) can be known. In this way, when receiving the dedicated downlink control information (DCI), the terminal no longer needs to perform blind detection, and can receive the dedicated downlink control information (DCI) at the time-frequency domain position indicated by the common downlink control information (DCI). ).
  • the number of blind detections when receiving downlink control information (DCI) can be reduced, and the complexity of blind detection can be reduced. And reduce the power consumption caused by blind detection.
  • FIG. 1 is a schematic structural diagram of a wireless communication system.
  • Fig. 2 is a schematic diagram showing a scheduling transport block according to an exemplary embodiment.
  • Fig. 3 is a schematic diagram showing a scheduling transport block according to an exemplary embodiment.
  • Fig. 4 is a flowchart of a method for jointly scheduling multiple transport blocks according to an exemplary embodiment.
  • Fig. 5 is a schematic diagram showing a scheduling transport block according to an exemplary embodiment.
  • Fig. 6 is a flowchart of a method for jointly scheduling multiple transport blocks according to an exemplary embodiment.
  • FIG. 7 is a schematic diagram illustrating resource division according to an exemplary embodiment.
  • Fig. 8 is a schematic diagram showing a scheduling transport block according to an exemplary embodiment.
  • Fig. 9 is a schematic diagram showing a scheduling transport block according to an exemplary embodiment.
  • Fig. 10 is a schematic diagram showing a scheduling transport block according to an exemplary embodiment.
  • FIG. 11 is a flowchart illustrating a method for jointly scheduling multiple transport blocks according to an exemplary embodiment.
  • Fig. 12 is a flowchart of a method for jointly scheduling multiple transport blocks according to an exemplary embodiment.
  • Fig. 13 is a schematic diagram of an apparatus for jointly scheduling multiple transport blocks according to an exemplary embodiment.
  • Fig. 14 is a schematic diagram of an apparatus for jointly scheduling multiple transport blocks according to an exemplary embodiment.
  • Fig. 15 is a block diagram of a user equipment according to an exemplary embodiment.
  • Fig. 16 is a block diagram of a base station according to an exemplary embodiment.
  • first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the word "if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • the terms “greater than” or “less than” are used herein when characterizing the relationship of size. However, those skilled in the art can understand that: based on the corresponding technical scenarios and technical solutions, the term “greater than” can also cover the meaning of “greater than or equal to”, and “less than” can also cover the meaning of "less than or equal to”.
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several user equipments 110 and several base stations 120 .
  • the user equipment 110 may be a device that provides voice and/or data connectivity to the user.
  • User equipment 110 may communicate with one or more core networks via a Radio Access Network (RAN), and user equipment 110 may be IoT user equipment such as sensor devices, mobile phones (or "cellular" phones) ) and a computer with IoT user equipment, for example, may be stationary, portable, pocket-sized, hand-held, computer-built or vehicle-mounted.
  • RAN Radio Access Network
  • IoT user equipment such as sensor devices, mobile phones (or "cellular" phones)
  • a computer with IoT user equipment for example, may be stationary, portable, pocket-sized, hand-held, computer-built or vehicle-mounted.
  • station Ses, STA
  • subscriber unit subscriber unit
  • subscriber station subscriber station
  • mobile station mobile station
  • mobile station mobile station
  • remote station remote station
  • access terminal remote user equipment
  • the user equipment 110 may also be a device of an unmanned aerial vehicle.
  • the user equipment 110 may also be an in-vehicle device, for example, a trip computer with a wireless communication function, or a wireless user equipment connected to an external trip computer.
  • the user equipment 110 may also be a roadside device, for example, a street light, a signal light or other roadside devices with a wireless communication function.
  • the base station 120 may be a network-side device in a wireless communication system.
  • the wireless communication system may be a fourth generation mobile communication (the 4th generation mobile communication, 4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; or, the wireless communication system may also be a 5G system, Also known as New Radio System or 5G NR System.
  • the wireless communication system may also be a next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network, a new generation of radio access network).
  • the base station 120 may be an evolved base station (eNB) used in the 4G system.
  • the base station 120 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system.
  • eNB evolved base station
  • gNB base station
  • the base station 120 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control Protocol (Radio Link Control, RLC) layer, and a Media Access Control (Media Access Control, MAC) layer; distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 120 is not limited in this embodiment of the present disclosure.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control Protocol
  • MAC Media Access Control
  • distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 120 is not limited in this embodiment of the present disclosure.
  • a wireless connection can be established between the base station 120 and the user equipment 110 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a 5G next-generation mobile communication network technology standard.
  • an E2E (End to End, end-to-end) connection may also be established between the user equipments 110 .
  • V2V vehicle to vehicle, vehicle-to-vehicle
  • V2I vehicle to Infrastructure, vehicle-to-roadside equipment
  • V2P vehicle to pedestrian, vehicle-to-person communication in vehicle-to-everything (V2X) communication etc. scene.
  • the above-mentioned user equipment may be regarded as the terminal equipment of the following embodiments.
  • the above wireless communication system may further include a network management device 130 .
  • the network management device 130 may be a core network device in a wireless communication system, for example, the network management device 130 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME). Alternatively, the network management device may also be other core network devices, such as a serving gateway (Serving GateWay, SGW), a public data network gateway (Public Data Network GateWay, PGW), a policy and charging rules functional unit (Policy and Charging Rules) Function, PCRF) or home subscriber server (Home Subscriber Server, HSS), etc.
  • the implementation form of the network management device 130 is not limited in this embodiment of the present disclosure.
  • MTC Machine-Type Communications
  • NB-IoT Narrow Band Internet of Things
  • MTC Machine-Type Communications
  • MTC Machine Type Communication
  • reduced-capability user equipment Similar to IoT devices in long-term evolution wireless communication systems, reduced-capability user equipment (Redcap UE) usually needs to meet the following requirements: 1. Low cost, low complexity; 2. Coverage enhancement; 3. Power saving. Since the new radio interface (NR) is designed for high-end terminals such as high-speed and low-latency, it cannot meet the above requirements. Therefore, the new air interface (NR) system needs to be modified to meet the above requirements. For example, in order to meet the requirements of low cost and low complexity, the radio frequency bandwidth of the reduced-capability user equipment (Redcap UE) can be limited; for example, to 5MHz or 10MHz, or the cache of the reduced-capability user equipment (Redcap UE) can be limited. , which in turn limits the size of each received transport block (TB), and so on. For power saving, a possible optimization direction is to simplify the communication process and reduce the number of times the downlink control channel is detected by the reduced capability user equipment (Redcap UE).
  • the base station schedules physical resources and modulation and coding formats required by a transport block (TB) through downlink control information (DCI) signaling.
  • the base station can perform time slot scheduling, please refer to FIG. 2 for details.
  • the base station can also perform cross-slot scheduling, as shown in FIG. 3 for details.
  • the transmission of downlink control information (DCI) has a plurality of physical downlink control channel (PDCCH, Physical Downlink Control Channel) candidate positions, and these candidate positions are located in the search space, and are controlled by the base station through the upper layer Radio Resource Control (RRC)
  • RRC Radio Resource Control
  • the time slot transmission may be that the time slot for transmitting the transport block (TB) and the time slot for transmitting the downlink control information (DCI) of the transport block (TB) belong to the same time slot.
  • the transmission across time slots may be at least one time slot between the time slot in which the transport block (TB) is transmitted and the time slot in which the downlink control information (DCI) of the transport block (TB) is transmitted.
  • this embodiment provides a method for jointly scheduling multiple transport blocks, which is applied to a base station, where the method includes:
  • Step 41 Deliver downlink control information (DCI) of multiple transport blocks (TBs).
  • DCI downlink control information
  • the downlink control information includes: common downlink control information (DCI) and multiple dedicated downlink control information (DCI) corresponding to multiple transport blocks (TBs) one-to-one; common downlink control information (DCI), which carries There is indication information of the time-frequency domain location for transmitting dedicated downlink control information (DCI); common downlink control information (DCI), which is used to carry common scheduling information for multiple transport blocks (TB); dedicated downlink control information (DCI), Scheduling information for carrying the corresponding transport block (TB).
  • DCI dedicated downlink control information
  • DCI dedicated downlink control information
  • Scheduling information for carrying the corresponding transport block (TB).
  • the terminal may be a terminal that receives downlink control information (DCI) for multiple transport blocks (TBs).
  • DCI downlink control information
  • the terminal may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a roadside unit (RSU, Road Side Unit), a smart home terminal, an industrial sensing device, and/or a medical device, etc.
  • the terminal may be a reduced capability user equipment (Redcap UE).
  • the base station is an interface device for the terminal to access the network.
  • the base station may be various types of base stations, for example, a base station of a third generation mobile communication (3G) network, a base station of a fourth generation mobile communication (4G) network, a base station of a fifth generation mobile communication (5G) network, or other evolved base station.
  • 3G third generation mobile communication
  • 4G fourth generation mobile communication
  • 5G fifth generation mobile communication
  • downlink control information may be information instructing the terminal to perform transmission scheduling.
  • Transmission scheduling includes, but is not limited to, downlink transmission scheduling and/or downlink transmission scheduling.
  • downlink control information is information for performing data scheduling on a physical downlink shared channel (PDSCH).
  • the downlink control information is information for performing data scheduling on the physical uplink shared channel (PUSCH).
  • the aforementioned uplink transmission scheduling may be referred to as uplink scheduling for short; the aforementioned downlink transmission scheduling may be referred to as downlink scheduling for short.
  • whether the downlink control information (DCI) is the information for downlink scheduling or the information for uplink scheduling may be indicated by distinguishing the format indication of uplink scheduling and downlink scheduling. For example, when the format for distinguishing uplink scheduling and downlink scheduling indicates that the bit value of the corresponding field is "0", the downlink control information (DCI) is information instructing the terminal to perform uplink scheduling. When the bit value of the corresponding field of the format indication for distinguishing uplink scheduling and downlink scheduling is "1", the downlink control information (DCI) is information instructing the terminal to perform downlink scheduling.
  • the common downlink control information may be control information for at least one unspecific transport block (TB).
  • DCI common downlink control information
  • TB transport blocks
  • DCI Dedicated Downlink Control Information
  • TB specific transport block
  • the format indication for distinguishing uplink scheduling and downlink scheduling may be carried in common downlink control information (DCI).
  • DCI downlink control information
  • the number of the plurality of transport blocks (TBs) may be indicated by the number of jointly scheduled transport blocks (TBs).
  • the jointly scheduled (TB) number may be carried in common downlink control information (DCI). For example, if the number of jointly scheduled transport blocks (TB) is 4, the number of jointly scheduled multiple transport blocks (TB) is 4.
  • DCI downlink control information
  • the time-frequency domain location may include a time domain location where dedicated downlink control information (DCI) is transmitted.
  • DCI dedicated downlink control information
  • the time domain location may include the location of the slot and/or the location of the symbol.
  • the position of the symbol can be determined according to the starting position of the symbol and the length of the symbol.
  • the location of the time slot may be indicated by a dedicated downlink control information (DCI) time domain location indication, and the dedicated downlink control information (DCI) time domain location indication may be carried in common downlink control information (DCI).
  • DCI dedicated downlink control information
  • DCI dedicated downlink control information
  • DCI dedicated downlink control information
  • DCI dedicated downlink control information
  • DCI dedicated downlink control information
  • the time-frequency domain location may include a frequency domain location where Dedicated Downlink Control Information (DCI) is transmitted.
  • the frequency domain location may contain a Bandwidth Part (BWP) indication.
  • BWP Bandwidth Part
  • the bandwidth part (BWP) indication may be carried in common downlink control information (DCI).
  • the transmission of multiple transport blocks (TBs) may be co-slot transmissions.
  • the time slot transmission may be that the time slot for transmitting the transport block (TB) and the time slot for transmitting the dedicated downlink control information (DCI) of the transport block (TB) belong to the same time slot.
  • DCI dedicated downlink control information
  • the transmission of multiple transport blocks (TBs) may be transmission across time slots.
  • the cross-slot transmission may be at least one time slot between the time slot for transmitting the transport block (TB) and the time slot for transmitting the dedicated downlink control information (DCI) of the transport block (TB).
  • DCI dedicated downlink control information
  • the common downlink control information (DCI) carries a time slot offset indication, which is used to indicate the time slot in which the transport block (TB) is transmitted and the dedicated downlink in which the transport block (TB) is transmitted.
  • the common downlink control information (DCI) carries a slot location indication of the dedicated downlink control information (DCI).
  • the time slot position indication of the dedicated downlink control information (DCI) is used to indicate the time slot position relationship between different dedicated downlink control information (DCI) for transmission.
  • Dedicated Downlink Control Information carries an indication of the location of the time slot in which the transport block (TB) is transmitted and the location of the symbols in the time domain.
  • the common scheduling information for multiple transport blocks (TBs) is scheduling information that needs to be used for transmitting multiple transport blocks (TBs).
  • the scheduling information for a single transport block (TB) is the scheduling information needed to transmit the corresponding transport block (TB).
  • transport block TB1 transport block TB1
  • transport block TB2 transport block TB3
  • transport block TB4 transport block TB4
  • transport block TBn transport block TBn
  • G1 is the common downlink control information (DCI) of the transport block TB1 to the transport block TBn
  • Z1 is the dedicated downlink control information (DCI) of the transport block TB1
  • Z2 is the dedicated downlink control information (DCI) of the transport block TB2
  • Z3 is the transport block Dedicated Downlink Control Information (DCI) for TB3.
  • the terminal since the common downlink control information (DCI) carries the indication information of the time-frequency domain position of the transmission dedicated downlink control information (DCI), the terminal, after receiving the common downlink control information (DCI), according to the common downlink control information (DCI) Information (DCI) indication information, it is possible to know the time-frequency domain position of the dedicated downlink control information (DCI) transmission. In this way, the terminal does not need to perform blind detection when receiving dedicated downlink control information (DCI), and can receive dedicated downlink control information (DCI) at the time-frequency domain position indicated by the common downlink control information (DCI).
  • DCI common downlink control information
  • the number of blind detections when receiving downlink control information (DCI) can be reduced, and the complexity of blind detection can be reduced. And reduce the power consumption caused by blind detection.
  • the common downlink control information (DCI) is issued before the dedicated downlink control information (DCI).
  • the terminal can receive dedicated downlink control information (DCI) at the time-frequency domain position according to the received indication information of the time-frequency domain position carried in the common downlink control information (DCI).
  • the common downlink control information includes at least one of the following: a format indication for distinguishing uplink scheduling and downlink scheduling, a bandwidth part (BWP) indication, the number of jointly scheduled transport blocks (TB), Hybrid Automatic Repeat Request (HARQ) starting process number and slot offset indication.
  • DCI includes at least one of the following: a format indication for distinguishing uplink scheduling and downlink scheduling, a bandwidth part (BWP) indication, the number of jointly scheduled transport blocks (TB), Hybrid Automatic Repeat Request (HARQ) starting process number and slot offset indication.
  • the format indication used to distinguish uplink scheduling and downlink scheduling is used to indicate whether the common downlink control information (DCI) is used for uplink scheduling or downlink scheduling.
  • the Bandwidth Part (BWP) indication is used to indicate the bandwidth used to transmit this transport block.
  • the number of jointly scheduled transport blocks (TB) is used to indicate the number of jointly scheduled transport blocks.
  • the starting process number of the hybrid automatic repeat request (HARQ) is the process number corresponding to the first transport block (TB) in the jointly scheduled N transport blocks (TB).
  • HARQ hybrid automatic repeat request
  • different transport blocks (TBs) correspond to different process numbers
  • the process number corresponding to the nth TB is: n+starting process number.
  • n and N are positive integers greater than or equal to 1.
  • dedicated downlink control information includes at least one of the following: modulation and coding strategy information (MCS) and time-frequency domain resource allocation information.
  • MCS modulation and coding strategy information
  • the time domain resource allocation information is used to indicate the start symbol position and symbol length in the time slot.
  • the start symbol is the 1st symbol and the symbol length is 3 symbols.
  • the common downlink control information includes: common downlink control information (DCI) used for uplink scheduling and common downlink control information (DCI) used for downlink scheduling; wherein, the common downlink control information (DCI) used for uplink scheduling
  • DCI common downlink control information
  • the number of bits of control information (DCI) and common downlink control information (DCI) used for downlink scheduling is the same.
  • common downlink control information (DCI) for uplink scheduling is used to schedule uplink transport blocks (TBs).
  • Common Downlink Control Information (DCI) for downlink scheduling is used to schedule downlink transport blocks (TBs).
  • DCI Downlink Control Information
  • DCI by filling the bits of the common downlink control information with "0", the number of bits of the common downlink control information (DCI) for uplink and the common downlink control information (DCI) for downlink are the same, so as to reduce the number of bits in the common downlink control information (DCI).
  • DCI common downlink control information
  • DCI common downlink control information
  • this embodiment provides a method for jointly scheduling multiple transport blocks, wherein the method further includes:
  • Step 61 Send the information of the instruction mode; wherein, the instruction mode includes:
  • the first indication mode is used to indicate common downlink control information (DCI) explicit indication indication information
  • the second indication mode is used to indicate common downlink control information (DCI) implicit indication indication information.
  • DCI downlink control information
  • the common downlink control information in response to the indication mode being the first indication mode, carries time-frequency domain location information for transmitting dedicated downlink control information (DCI) in the time slot;
  • the common downlink control information implicitly indicates the time-frequency domain position for transmitting dedicated downlink control information (DCI) and the time-frequency domain for transmitting common downlink control information (DCI) in the time slot Same location.
  • the common downlink control information explicitly indicates that the indication information may be that the common downlink control information (DCI) carries the symbol position and frequency domain in the time slot corresponding to the transmission-specific downlink control information (DCI). Location field.
  • the indication information is valid for all jointly scheduled N transport blocks (TBs). That is, the dedicated downlink control information (DCI) of all transport blocks (TBs) are transmitted at the symbol position and frequency domain position within the indicated time slot.
  • DCI dedicated downlink control information
  • dedicated downlink control information (DCI) for the first transport block (TB) of the joint scheduling is transmitted on a slot adjacent to the common downlink control information (DCI).
  • the transmission resources of common downlink control information (DCI) and dedicated downlink control information (DCI) can be independently configured, which can effectively reduce the user-specific search space.
  • Probability of control channel congestion in (USS) USS
  • the channel format of the physical downlink control channel (PDCCH) carrying the dedicated downlink control information may be consistent with the channel format of the physical downlink control channel of the common downlink control information, that is, the channel format of the physical downlink control channel (PDCCH) carrying the dedicated downlink control information may be consistent with
  • the physical downlink control channel (PDCCH) of the dedicated downlink control information (DCI) uses the same aggregation level and the same control channel element (CCE, Control Channel Element) interleaving method as the common downlink control information (DCI) (including the parameters required for interleaving). configuration) etc.
  • CCE Control Channel Element
  • the common downlink control information (DCI) implicitly indicates that the indication information may be that the common downlink control information (DCI) does not carry the symbol position and frequency in the time slot corresponding to the transmission-specific downlink control information (DCI).
  • the field for the domain location the symbol position and frequency domain position of the dedicated downlink control information (DCI) in the time slot are the same as the symbol position and frequency domain position of the common downlink control information in the time slot.
  • the dedicated downlink control information (DCI) of the first transport block (TB) of the joint scheduling is compared with the common downlink control information (DCI). transmitted on adjacent time slots.
  • the dedicated downlink control information (DCI) occupies the position of a candidate channel in the dedicated search space (USS), so the downlink control information (DCI) for other services of the same terminal and the The time-frequency domain resource location is no longer used in the corresponding time slot.
  • the terminal selects the first indication method or the second indication method to determine the time-frequency domain position of the dedicated downlink control information (DCI).
  • the base station determines the independent configuration of Dedicated Downlink Control Information (DCI) and User Dedicated Search Space (USS). In one embodiment, the base station may adjust the allocated resources in real time according to the specific usage of the physical resources.
  • DCI Dedicated Downlink Control Information
  • USS User Dedicated Search Space
  • the information indicating the mode is sent, including:
  • RRC Radio Resource Control
  • the indication mode is carried in the radio resource control (RRC) message, which can improve the signaling compatibility of the radio resource control (RRC) message.
  • RRC radio resource control
  • the time-frequency domain location of the user-specific search space (USS) used to carry the common downlink control information (DCI) is different from the location of the user-specific search space (USS) used to transmit the dedicated downlink control information (DCI). time-frequency domain location.
  • the time-frequency domain position of the user-specific search space (USS) for carrying the common downlink control information (DCI) may not overlap with the time-frequency domain position of the transmission dedicated downlink control information (DCI). In this way, the situation of resource blocking can be reduced.
  • the dedicated downlink control information (DCI) of the first transport block (TB) of the plurality of transport blocks (TB) is in a time slot adjacent to the time slot in which the common downlink control information (DCI) is transmitted transfer up.
  • the dedicated downlink control information (DCI) of the first transmitted transport block (TB) can be transmitted in adjacent time slots of the common downlink control information (DCI) time slot, the transmission delay can be reduced.
  • the common downlink control information includes: carrying a time slot position relationship indication between dedicated downlink control information (DCI); a time slot position indication for indicating transmission of the dedicated downlink control information (DCI) transmission Way.
  • the first transmission mode the dedicated DCI of each transport block (TB) is sequentially transmitted on non-consecutive time slots;
  • the second transmission mode the dedicated downlink control information (DCI) of each transport block (TB) is sequentially transmitted on consecutive time slots.
  • DCI dedicated downlink control information
  • non-consecutive time slots are separated by at least one time slot.
  • the non-consecutive inter-slot intervals have the same number of time slots.
  • the dedicated downlink control information (DCI) of the Nth transport block (TB) is transmitted after the (N-1)th transmission mode is completed. Transmission is performed on the first time slot after the time slots of the transport blocks (TBs); wherein, N is a positive integer, and N is the number of multiple transport blocks (TBs).
  • the transmission of the transport block (TB) is a transmission across time slots, and the dedicated downlink control information (DCI) of the nth transport block (TB) is transmitted at the same time as the (n-1)th transmission. Transmission occurs on the first time slot after the end of the block (TB) transmission.
  • DCI dedicated downlink control information
  • the complexity requirements of the terminal are low, but there will be a large transmission delay, which is applicable to services and/or terminals that can tolerate long delays.
  • the transmission of the transport block (TB) is transmission across time slots, and the dedicated downlink control information (DCI) is sequentially transmitted on consecutive time slots.
  • DCI dedicated downlink control information
  • the transmission of the transport block (TB) is time-slot transmission, and the dedicated downlink control information (DCI) is sequentially transmitted on consecutive time slots.
  • DCI dedicated downlink control information
  • the common downlink control information (DCI) carries a time slot offset indication, which is used to indicate the time slot in which the transport block (TB) is transmitted and the dedicated downlink in which the transport block (TB) is transmitted.
  • the transmission of multiple transport blocks (TBs) may be co-slot transmissions.
  • the time slot transmission may be that the time slot for transmitting the transport block (TB) and the time slot for transmitting the dedicated downlink control information (DCI) of the transport block (TB) belong to the same time slot.
  • DCI dedicated downlink control information
  • the transmission of multiple transport blocks (TBs) may be transmission across time slots.
  • the cross-slot transmission may be at least one time slot between the time slot for transmitting the transport block (TB) and the time slot for transmitting the dedicated downlink control information (DCI) of the transport block (TB).
  • DCI dedicated downlink control information
  • the dedicated downlink control information (DCI) carries a symbol position indication; the symbol position indication is used to indicate the starting symbol position and symbol length of the transport block (TB) in the time slot.
  • the terminal can receive the transport block (TB) at the start symbol position indicated by the symbol position and the time domain position corresponding to the symbol length according to the symbol position indication.
  • the downlink common downlink control information includes at least one of the following indications: format indication for distinguishing uplink scheduling and downlink scheduling, bandwidth part indication, time slot offset indication, zero Power reference power trigger indication, start process number, sounding reference signal request indication, demodulation reference signal sequence initialization indication, physical uplink control channel power control indication, physical uplink control channel resource indication, number of transport blocks (TB) for joint transmission,
  • Downlink Dedicated Downlink Control Information includes at least one of the following information: frequency domain resource allocation indication, symbol location indication, mapping indication from virtual resource blocks to physical resource blocks, physical Resource block binding size indication, modulation and coding strategy information indication, new data indication, redundancy version indication, downlink allocation indication, physical downlink shared channel to hybrid automatic repeat request feedback timing indication, code block group transmission information indication and coding Block group clear information indication. It should be noted that the downlink dedicated downlink control information (DCI) is applicable to the first indication manner and the second indication manner.
  • the uplink common downlink control information includes at least one of the following indications: format indication for distinguishing uplink scheduling and downlink scheduling, bandwidth part indication, time slot offset indication, Initial process number, sounding reference signal request indication, phase tracking reference signal and demodulation reference signal association indication, demodulation reference signal sequence initialization indication, channel state information request, number of transport blocks (TB) for joint transmission, dedicated downlink control information ( Time slot location indication of DCI), symbol location indication of dedicated downlink control information (DCI), and frequency domain location indication of dedicated downlink control information (DCI).
  • format indication for distinguishing uplink scheduling and downlink scheduling bandwidth part indication
  • time slot offset indication Initial process number
  • sounding reference signal request indication indicates phase tracking reference signal and demodulation reference signal association indication
  • demodulation reference signal sequence initialization indication demodulation reference signal sequence initialization indication
  • channel state information request number of transport blocks (TB) for joint transmission
  • dedicated downlink control information Time slot location indication of DCI
  • symbol location indication of dedicated downlink control information DCI
  • the uplink dedicated downlink control information includes at least one of the following: frequency domain resource allocation indication, symbol location indication, frequency hopping flag, modulation and coding strategy information indication, new data indication , redundancy version indication, downlink allocation indication, physical uplink shared channel power control indication, code block group transmission information indication, coding block group clearing information indication and Beta offset indication.
  • control information in Tables 1 to 4 may not be the order of the fields corresponding to the control information.
  • DCI downlink control information
  • DCI dedicated downlink control information
  • the base station may set different transport block lengths, Modulation method, time-frequency domain resources and interleaving method, etc.
  • the value of N has the following determination rules: In uplink transmission, the terminal reports The buffer status report of the base station, the current link quality status, equipment energy saving requirements and other factors are jointly determined; in downlink transmission, the amount of data to be transmitted in the base station buffer, the current link quality status, equipment energy saving requirements, etc. factors determine together.
  • the present invention is also applicable to the non-reduced-capability user equipment in the existing mobile communication system.
  • the original downlink control information (DCI) signaling that is, the fallback format downlink control information (DCI) signaling
  • DCI fallback format downlink control information
  • this embodiment provides a method for jointly scheduling multiple transport blocks, which is applied to a terminal, where the method includes:
  • Step 111 Receive downlink control information (DCI) of multiple transport blocks (TB);
  • the downlink control information includes: common downlink control information (DCI) and multiple dedicated downlink control information (DCI) corresponding to multiple transport blocks (TBs) one-to-one; common downlink control information (DCI), which carries There is indication information of the time-frequency domain location for transmitting dedicated downlink control information (DCI); common downlink control information (DCI), which is used to carry common scheduling information for multiple transport blocks (TB); dedicated downlink control information (DCI), Scheduling information for the corresponding single transport block (TB).
  • DCI dedicated downlink control information
  • DCI dedicated downlink control information
  • Scheduling information for the corresponding single transport block (TB).
  • the terminal may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a roadside unit (RSU, Road Side Unit), a smart home terminal, an industrial sensing device, and/or a medical device, etc.
  • the terminal may be a reduced capability user equipment (Redcap UE).
  • the base station may issue downlink control information (DCI) of multiple transport blocks (TB), and the base station is an interface device for the terminal to access the network.
  • DCI downlink control information
  • the base station may be various types of base stations, for example, a base station of a third-generation mobile communication (3G) network, a base station of a fourth-generation mobile communication (4G) network, a base station of a fifth-generation mobile communication (5G) network, or other evolved base station.
  • 3G third-generation mobile communication
  • 4G fourth-generation mobile communication
  • 5G fifth-generation mobile communication
  • downlink control information may be information instructing the terminal to perform transmission scheduling.
  • Transmission scheduling includes, but is not limited to, downlink transmission scheduling and/or downlink transmission scheduling.
  • DCI downlink control information
  • PDSCH physical downlink shared channel
  • the downlink control information is information for performing data scheduling on the physical uplink shared channel (PUSCH).
  • the aforementioned uplink transmission scheduling may be referred to as uplink scheduling for short; the aforementioned downlink transmission scheduling may be referred to as downlink scheduling for short.
  • whether the downlink control information (DCI) is the information for downlink scheduling or the information for uplink scheduling may be indicated by distinguishing the format indication of uplink scheduling and downlink scheduling. For example, when the format for distinguishing uplink scheduling and downlink scheduling indicates that the bit value of the corresponding field is "0", the downlink control information (DCI) is information instructing the terminal to perform uplink scheduling. When the bit value of the corresponding field of the format indication for distinguishing uplink scheduling and downlink scheduling is "1", the downlink control information (DCI) is information instructing the terminal to perform downlink scheduling.
  • the common downlink control information may be control information for at least one unspecific transport block (TB).
  • DCI common downlink control information
  • TB transport blocks
  • DCI Dedicated Downlink Control Information
  • TB specific transport block
  • the format indication for distinguishing uplink scheduling and downlink scheduling may be carried in common downlink control information (DCI).
  • DCI downlink control information
  • the number of the plurality of transport blocks (TBs) may be indicated by the number of jointly scheduled transport blocks (TBs).
  • the jointly scheduled (TB) number may be carried in common downlink control information (DCI). For example, if the number of jointly scheduled transport blocks (TB) is 4, the number of jointly scheduled multiple transport blocks (TB) is 4.
  • DCI downlink control information
  • the time-frequency domain location may include a time domain location where dedicated downlink control information (DCI) is transmitted.
  • the time domain position may include the position of the slot and/or the position of the symbol in the time domain.
  • the coincident position can be determined according to the starting position of the symbol and the length of the symbol.
  • the location of the time slot may be indicated by a dedicated downlink control information (DCI) time domain location indication, and the dedicated downlink control information (DCI) time domain location indication may be carried in common downlink control information (DCI).
  • DCI dedicated downlink control information
  • DCI dedicated downlink control information
  • DCI dedicated downlink control information
  • DCI dedicated downlink control information
  • DCI dedicated downlink control information
  • the time-frequency domain location may include a frequency domain location where Dedicated Downlink Control Information (DCI) is transmitted.
  • the frequency domain location may contain a Bandwidth Part (BWP) indication.
  • BWP Bandwidth Part
  • the bandwidth part (BWP) indication may be carried in common downlink control information (DCI).
  • the transmission of multiple transport blocks (TBs) may be co-slot transmissions.
  • the time slot transmission may be that the time slot for transmitting the transport block (TB) and the time slot for transmitting the dedicated downlink control information (DCI) of the transport block (TB) belong to the same time slot.
  • DCI dedicated downlink control information
  • the transmission of multiple transport blocks (TBs) may be transmission across time slots.
  • the cross-slot transmission may be at least one time slot between the time slot for transmitting the transport block (TB) and the time slot for transmitting the dedicated downlink control information (DCI) of the transport block (TB).
  • DCI dedicated downlink control information
  • the common downlink control information (DCI) carries a time slot offset indication, which is used to indicate the time slot in which the transport block (TB) is transmitted and the dedicated downlink in which the transport block (TB) is transmitted.
  • the common downlink control information (DCI) carries a slot location indication of the dedicated downlink control information (DCI).
  • the time slot position indication of the dedicated downlink control information (DCI) is used to indicate the time slot position relationship between different dedicated downlink control information (DCI) for transmission.
  • Dedicated Downlink Control Information carries an indication of the location of the time slot in which the transport block (TB) is transmitted and the location of the symbols in the time domain.
  • the common scheduling information for multiple transport blocks (TBs) is scheduling information that needs to be used to transmit multiple transport blocks (TBs).
  • the scheduling information for a single transport block (TB) is the scheduling information needed to transmit the corresponding transport block (TB).
  • transport block TB1 transport block TB1
  • transport block TB2 transport block TB3
  • transport block TB4 transport block TB4
  • transport block TBn transport block TBn
  • G1 is the common downlink control information (DCI) of the transport block TB1 to the transport block TBn
  • Z1 is the dedicated downlink control information (DCI) of the transport block TB1
  • Z2 is the dedicated downlink control information (DCI) of the transport block TB2
  • Z3 is the transport block Dedicated Downlink Control Information (DCI) for TB3.
  • the terminal since the common downlink control information (DCI) carries the indication information of the time-frequency domain position of the transmission dedicated downlink control information (DCI), the terminal, after receiving the common downlink control information (DCI), according to the common downlink control information (DCI) Information (DCI) indication information, it is possible to know the time-frequency domain position of the dedicated downlink control information (DCI) transmission. In this way, the terminal does not need to perform blind detection when receiving dedicated downlink control information (DCI), and can receive dedicated downlink control information (DCI) at the time-frequency domain position indicated by the common downlink control information (DCI).
  • DCI common downlink control information
  • the number of blind detections when receiving downlink control information (DCI) can be reduced, and the complexity of blind detection can be reduced. And reduce the power consumption caused by blind detection.
  • the common downlink control information (DCI) is issued before the dedicated downlink control information (DCI).
  • the terminal can receive dedicated downlink control information (DCI) at the time-frequency domain position according to the received indication information of the time-frequency domain position carried in the common downlink control information (DCI).
  • the common downlink control information includes at least one of the following: a format indication for distinguishing uplink scheduling and downlink scheduling, a bandwidth part (BWP) indication, the number of jointly scheduled transport blocks (TB), Hybrid Automatic Repeat Request (HARQ) starting process number and slot offset indication.
  • DCI includes at least one of the following: a format indication for distinguishing uplink scheduling and downlink scheduling, a bandwidth part (BWP) indication, the number of jointly scheduled transport blocks (TB), Hybrid Automatic Repeat Request (HARQ) starting process number and slot offset indication.
  • the format indication used to distinguish uplink scheduling and downlink scheduling is used to indicate whether the common downlink control information (DCI) is used for uplink scheduling or downlink scheduling.
  • the Bandwidth Part (BWP) indication is used to indicate the bandwidth used to transmit this transport block.
  • the number of jointly scheduled transport blocks (TB) is used to indicate the number of jointly scheduled transport blocks.
  • the starting process number of the hybrid automatic repeat request (HARQ) is the process number corresponding to the first transport block (TB) in the jointly scheduled N transport blocks (TB).
  • HARQ hybrid automatic repeat request
  • different transport blocks (TBs) correspond to different process numbers
  • the process number corresponding to the nth TB is: n+starting process number.
  • n and N are positive integers greater than or equal to 1.
  • dedicated downlink control information includes at least one of the following: modulation and coding strategy information (MCS) and time-frequency domain resource allocation information.
  • MCS modulation and coding strategy information
  • the time domain resource allocation information is used to indicate the start symbol position and symbol length in the time slot.
  • the start symbol is the 1st symbol and the symbol length is 3 symbols.
  • the common downlink control information includes: common downlink control information (DCI) used for uplink scheduling and common downlink control information (DCI) used for downlink scheduling; wherein, the common downlink control information (DCI) used for uplink scheduling
  • DCI common downlink control information
  • the number of bits of control information (DCI) and common downlink control information (DCI) used for downlink scheduling is the same.
  • common downlink control information (DCI) for uplink scheduling is used to schedule uplink transport blocks (TBs).
  • Common Downlink Control Information (DCI) for downlink scheduling is used to schedule downlink transport blocks (TBs).
  • DCI Downlink Control Information
  • DCI by filling the bits of the common downlink control information with "0", the number of bits of the common downlink control information (DCI) for uplink and the common downlink control information (DCI) for downlink are the same, so as to reduce the number of bits in the common downlink control information (DCI).
  • DCI common downlink control information
  • DCI common downlink control information
  • this embodiment provides a method for jointly scheduling multiple transport blocks, where the method includes:
  • Step 121 receiving the information of the indication mode; wherein, the indication mode includes:
  • the first indication mode is used to indicate that the common downlink control information (DCI) explicitly indicates the indication information
  • the second indication mode is used to indicate that the common downlink control information (DCI) implicitly indicates the indication information.
  • DCI downlink control information
  • the common downlink control information in response to the indication mode being the first indication mode, carries time-frequency domain location information for transmitting dedicated downlink control information (DCI) in the time slot;
  • the common downlink control information implicitly indicates the time-frequency domain position for transmitting dedicated downlink control information (DCI) and the time-frequency domain for transmitting common downlink control information (DCI) in the time slot Same location.
  • the common downlink control information explicitly indicates that the indication information may be that the common downlink control information (DCI) carries the symbol position and frequency domain in the time slot corresponding to the transmission-specific downlink control information (DCI). Location field.
  • the indication information is valid for all jointly scheduled N transport blocks (TBs). That is, the dedicated downlink control information (DCI) of all transport blocks (TBs) are transmitted at the symbol position and frequency domain position within the indicated time slot.
  • DCI dedicated downlink control information
  • dedicated downlink control information (DCI) for the first transport block (TB) of the joint scheduling is transmitted on a slot adjacent to the common downlink control information (DCI).
  • the transmission resources of common downlink control information (DCI) and dedicated downlink control information (DCI) can be independently configured, which can effectively reduce the need for user-specific search Probability of generating control channel congestion in space (USS).
  • DCI common downlink control information
  • DCI dedicated downlink control information
  • the channel format of the physical downlink control channel (PDCCH) carrying dedicated downlink control information may be consistent with the channel format of the physical downlink control channel of the common downlink control information, that is, carrying
  • the physical downlink control channel (PDCCH) of the dedicated downlink control information (DCI) uses the same aggregation level and the same control channel element (CCE, Control Channel Element) interleaving method as the common downlink control information (DCI) (including the parameters required for interleaving). configuration) etc.
  • CCE Control Channel Element
  • the common downlink control information (DCI) implicitly indicates that the indication information may be that the common downlink control information (DCI) does not carry the symbol position and frequency in the time slot corresponding to the transmission-specific downlink control information (DCI).
  • the field for the domain location the symbol position and frequency domain position of the dedicated downlink control information (DCI) in the time slot are the same as the symbol position and frequency domain position of the common downlink control information in the time slot.
  • the dedicated downlink control information (DCI) of the first transport block (TB) of the joint scheduling is compared with the common downlink control information (DCI). transmitted on adjacent time slots.
  • the dedicated downlink control information (DCI) occupies the position of a candidate channel in the dedicated search space (USS), so the downlink control information (DCI) for other services of the same terminal and the The time-frequency domain resource location is no longer used in the corresponding time slot.
  • the terminal selects the first indication method or the second indication method to determine the time-frequency domain position of the dedicated downlink control information (DCI).
  • the base station determines the independent configuration of Dedicated Downlink Control Information (DCI) and User Dedicated Search Space (USS). In one embodiment, the base station may adjust the allocated resources in real time according to the specific usage of the physical resources.
  • DCI Dedicated Downlink Control Information
  • USS User Dedicated Search Space
  • receiving information indicating the manner includes:
  • Radio Resource Control (RRC) message carrying an indication.
  • the indication mode is carried in the radio resource control (RRC) message, which can improve the signaling compatibility of the radio resource control (RRC) message.
  • RRC radio resource control
  • the time-frequency domain location of the user-specific search space (USS) used to carry the common downlink control information (DCI) is different from the location of the user-specific search space (USS) used to transmit the dedicated downlink control information (DCI). time-frequency domain location.
  • the time-frequency domain position of the user-specific search space (USS) for carrying the common downlink control information (DCI) may not overlap with the time-frequency domain position of the transmission dedicated downlink control information (DCI). In this way, the situation of resource blocking can be reduced.
  • the dedicated downlink control information (DCI) of the first transport block (TB) of the plurality of transport blocks (TB) is in a time slot adjacent to the time slot in which the common downlink control information (DCI) is transmitted transfer up.
  • the dedicated downlink control information (DCI) of the first transmitted transport block (TB) can be transmitted in adjacent time slots of the common downlink control information (DCI) time slot, the transmission delay can be reduced.
  • the common downlink control information includes: carrying a time slot position relationship indication between dedicated downlink control information (DCI); a time slot position indication for indicating transmission of the dedicated downlink control information (DCI) transmission Way.
  • the first transmission mode the dedicated DCI of each transport block (TB) is sequentially transmitted on non-consecutive time slots;
  • the second transmission mode the dedicated downlink control information (DCI) of each transport block (TB) is sequentially transmitted on consecutive time slots.
  • DCI dedicated downlink control information
  • non-consecutive time slots are separated by at least one time slot.
  • the non-consecutive inter-slot intervals have the same number of time slots.
  • the dedicated downlink control information (DCI) of the Nth transport block (TB) is transmitted after the (N-1)th transmission mode is completed. Transmission is performed on the first time slot after the time slots of the transport blocks (TBs); wherein, N is a positive integer, and N is the number of multiple transport blocks (TBs).
  • the transmission of the transport block (TB) is a transmission across time slots, and the dedicated downlink control information (DCI) of the nth transport block (TB) is the same as the (n-1)th Transmission occurs on the first time slot after the end of a transport block (TB) transmission.
  • DCI dedicated downlink control information
  • the complexity requirements of the terminal are low, but there will be a large transmission delay, which is applicable to services and/or terminals that can tolerate long delays.
  • the transmission of the transport block (TB) is transmission across time slots, and the dedicated downlink control information (DCI) is sequentially transmitted on consecutive time slots.
  • DCI dedicated downlink control information
  • the transmission of the transport block (TB) is a time slot transmission
  • the dedicated downlink control information (DCI) is sequentially transmitted in consecutive time slots.
  • the common downlink control information (DCI) carries a time slot offset indication, which is used to indicate the time slot in which the transport block (TB) is transmitted and the dedicated downlink in which the transport block (TB) is transmitted.
  • the transmission of multiple transport blocks (TBs) may be co-slot transmissions.
  • the time slot transmission may be that the time slot for transmitting the transport block (TB) and the time slot for transmitting the dedicated downlink control information (DCI) of the transport block (TB) belong to the same time slot.
  • DCI dedicated downlink control information
  • the transmission of multiple transport blocks (TBs) may be across time slots.
  • the cross-slot transmission may be at least one time slot between the time slot for transmitting the transport block (TB) and the time slot for transmitting the dedicated downlink control information (DCI) of the transport block (TB).
  • DCI dedicated downlink control information
  • the dedicated downlink control information (DCI) carries a symbol position indication; the symbol position indication is used to indicate the starting symbol position and symbol length of the transport block (TB) in the time slot.
  • the terminal can receive the transport block (TB) at the start symbol position indicated by the symbol position and the time domain position corresponding to the symbol length according to the symbol position indication.
  • the downlink common downlink control information includes at least one of the following indications: format indication for distinguishing uplink scheduling and downlink scheduling, bandwidth part indication, time slot offset indication, Zero-power reference power trigger indication, starting process number, sounding reference signal request indication, demodulation reference signal sequence initialization indication, physical uplink control channel power control indication, physical uplink control channel resource indication, number of transport blocks (TB) for joint transmission , the time slot position indication of dedicated downlink control information (DCI), the symbol position indication of dedicated downlink control information (DCI), and the frequency domain position indication of dedicated downlink control information (DCI).
  • “yes” indicates the control information included in the common downlink control information (DCI) in the corresponding indication mode.
  • Downlink dedicated downlink control information includes at least one of the following information: frequency domain resource allocation indication, symbol location indication, mapping indication from virtual resource blocks to physical resource blocks, Physical resource block binding size indication, modulation and coding strategy information indication, new data indication, redundancy version indication, downlink allocation indication, physical downlink shared channel to hybrid automatic repeat request feedback timing indication, code block group transmission information indication and Coded block group clear information indication. It should be noted that the downlink dedicated downlink control information (DCI) is applicable to the first indication manner and the second indication manner.
  • the uplink common downlink control information includes at least one of the following indications: format indication for distinguishing uplink scheduling and downlink scheduling, bandwidth part indication, time slot offset indication, Start process number, sounding reference signal request indication, phase tracking reference signal and demodulation reference signal association indication, demodulation reference signal sequence initialization indication, channel state information indication, number of transport blocks (TB) for joint transmission, dedicated downlink control information (DCI) slot position indication, dedicated downlink control information (DCI) symbol position indication and dedicated downlink control information (DCI) frequency domain position indication.
  • the uplink dedicated downlink control information includes at least one of the following: frequency domain resource allocation indication, symbol location indication, frequency hopping flag modulation and coding strategy information indication, new data indication , redundancy version indication, downlink allocation indication, physical uplink shared channel power control indication, code block group transmission information indication, coding block group clearing information indication and Beta offset indication.
  • this embodiment provides an apparatus for jointly scheduling multiple transport blocks, wherein, when applied to a base station, the apparatus includes a delivery module 131 , wherein,
  • the sending module 131 is configured to send downlink control information (DCI) of multiple transport blocks (TB);
  • DCI downlink control information
  • TB transport blocks
  • the downlink control information includes: common downlink control information (DCI) and multiple dedicated downlink control information (DCI) corresponding to multiple transport blocks (TB) one-to-one;
  • DCI Common downlink control information
  • DCI which carries the indication information of the time-frequency domain position of the transmission dedicated downlink control information (DCI);
  • DCI Downlink Control Information
  • DCI Dedicated Downlink Control Information
  • this embodiment provides an apparatus for jointly scheduling multiple transport blocks, wherein, when applied to a terminal, the apparatus includes a receiving module 141, wherein,
  • a receiving module 141 configured to receive downlink control information (DCI) of multiple transport blocks (TB);
  • DCI downlink control information
  • TB transport blocks
  • the downlink control information includes: common downlink control information (DCI) and multiple dedicated downlink control information (DCI) corresponding to multiple transport blocks (TB) one-to-one;
  • DCI Common downlink control information
  • DCI which carries the indication information of the time-frequency domain position of the transmission dedicated downlink control information (DCI);
  • DCI Downlink Control Information
  • DCI Dedicated Downlink Control Information
  • Embodiments of the present disclosure provide a communication device, the communication device includes:
  • memory for storing processor-executable instructions
  • the processor is configured to, when executing the executable instructions, implement the method applied to any embodiment of the present disclosure.
  • the processor may include various types of storage media, which are non-transitory computer storage media that can continue to memorize and store information on the communication device after the power is turned off.
  • the processor may be connected to the memory through a bus or the like for reading executable programs stored on the memory.
  • An embodiment of the present disclosure further provides a computer storage medium, wherein the computer storage medium stores a computer-executable program, and when the executable program is executed by a processor, the method of any embodiment of the present disclosure is implemented. .
  • FIG. 15 is a block diagram of a user equipment (UE) 800 according to an exemplary embodiment.
  • user device 800 may be a mobile phone, computer, digital broadcast user device, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • the user equipment 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814 , and the communication component 816 .
  • the processing component 802 generally controls the overall operation of the user equipment 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 802 can include one or more processors 820 to execute instructions to perform all or some of the steps of the methods described above.
  • processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components.
  • processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.
  • Memory 804 is configured to store various types of data to support operation at user equipment 800 . Examples of such data include instructions for any application or method operating on user device 800, contact data, phonebook data, messages, pictures, videos, and the like. Memory 804 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power supply component 806 provides power to various components of user equipment 800 .
  • Power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to user equipment 800 .
  • Multimedia component 808 includes a screen that provides an output interface between the user device 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action.
  • the multimedia component 808 includes a front-facing camera and/or a rear-facing camera. When the user equipment 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 810 is configured to output and/or input audio signals.
  • audio component 810 includes a microphone (MIC) that is configured to receive external audio signals when user device 800 is in operating modes, such as call mode, recording mode, and voice recognition mode.
  • the received audio signal may be further stored in memory 804 or transmitted via communication component 816 .
  • audio component 810 also includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of user equipment 800 .
  • the sensor component 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the user device 800, the sensor component 814 can also detect the user device 800 or a component of the user device 800
  • the position of the user equipment 800 changes, the presence or absence of user contact with the user equipment 800, the orientation or acceleration/deceleration of the user equipment 800, and the temperature of the user equipment 800 changes.
  • Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 816 is configured to facilitate wired or wireless communications between user device 800 and other devices.
  • User equipment 800 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • user equipment 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A programmed gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A programmed gate array
  • controller microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • non-transitory computer-readable storage medium including instructions, such as a memory 804 including instructions, executable by the processor 820 of the user equipment 800 to perform the above method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • an embodiment of the present disclosure shows a structure of a base station.
  • the base station 900 may be provided as a network-side device.
  • base station 900 includes processing component 922, which further includes one or more processors, and a memory resource represented by memory 932 for storing instructions executable by processing component 922, such as application programs.
  • An application program stored in memory 932 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 922 is configured to execute instructions to perform any of the aforementioned methods applied to the base station.
  • the base station 900 may also include a power supply assembly 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input output (I/O) interface 958.
  • Base station 900 may operate based on an operating system stored in memory 932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un procédé de planification conjointe de multiples blocs de transport (TB), qui est appliqué à des stations de base. Le procédé consiste à : émettre des informations de commande en liaison descendante (DCI) de multiples TB, les DCI comprenant : des DCI communes et de multiples DCI dédiées ayant une correspondance biunivoque avec les multiples TB, les DCI communes transportant des informations d'indication d'une position de domaine temps-fréquence pour transmettre les DCI dédiées, les DCI communes étant utilisées pour transporter des informations de planification communes pour les TB multiples, et les DCI dédiées étant utilisées pour transporter des informations de planification d'un TB correspondant.
PCT/CN2020/120976 2020-10-14 2020-10-14 Procédé et appareil de planification conjointe de multiples blocs de transport, dispositif de communication et support d'enregistrement WO2022077295A1 (fr)

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CN202080002738.5A CN112514316B (zh) 2020-10-14 2020-10-14 联合调度多个传输块的方法、装置、通信设备及存储介质
PCT/CN2020/120976 WO2022077295A1 (fr) 2020-10-14 2020-10-14 Procédé et appareil de planification conjointe de multiples blocs de transport, dispositif de communication et support d'enregistrement

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