WO2021072608A1 - Procédé et appareil permettant de notifier un décalage d'unité de temps minimal - Google Patents

Procédé et appareil permettant de notifier un décalage d'unité de temps minimal Download PDF

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Publication number
WO2021072608A1
WO2021072608A1 PCT/CN2019/111104 CN2019111104W WO2021072608A1 WO 2021072608 A1 WO2021072608 A1 WO 2021072608A1 CN 2019111104 W CN2019111104 W CN 2019111104W WO 2021072608 A1 WO2021072608 A1 WO 2021072608A1
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WO
WIPO (PCT)
Prior art keywords
time unit
offset
indication information
time
unit
Prior art date
Application number
PCT/CN2019/111104
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English (en)
Chinese (zh)
Inventor
黄雯雯
铁晓磊
花梦
周涵
张战战
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/111104 priority Critical patent/WO2021072608A1/fr
Publication of WO2021072608A1 publication Critical patent/WO2021072608A1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the base station configures one or two minimum time slot offsets to the UE through radio resource control (RRC) signaling. If the base station only configures one minimum time slot offset, the base station uses the physical downlink The control channel (physical downlink control channel, PDCCH) indicates whether the subsequent actual scheduling is limited by the minimum time slot offset. If the base station configures two minimum time slot offsets, the base station indicates through the PDCCH that one of the minimum time slot offsets is used Subsequent actual scheduling.
  • RRC radio resource control
  • the first time unit is the latest time unit of the second time unit and the third time unit, wherein the third time unit includes at least one of the following Time unit: the time unit offset from the preset first time length from the time unit at which the network device sends the first indication information, and the second smallest offset from the time unit at which the network device sends the first indication information The time unit after the time unit offset.
  • a method for notifying a minimum time unit offset which includes a terminal device receiving second indication information sent by a network device, where the second indication information is used to indicate the third minimum time unit offset;
  • the terminal device receives the third indication information sent by the network device, the third indication information is used to indicate the fourth minimum time unit offset, where the fourth minimum time unit offset is the same as the third minimum time unit
  • the offset is the same, wherein the start time of the first time period is no earlier than the time unit where the terminal device receives the second indication information, and the end time of the first time period is no earlier than the network device passes the first time unit.
  • the second indication information is the fourth time unit for uplink information transmission indicated by the terminal device.
  • the terminal device receives the second indication information sent by the network device, where the second indication information is used to indicate the third minimum time unit offset, and the terminal device receives the sending third indication information sent by the network device,
  • the uplink information includes feedback information of a physical downlink shared channel or a physical uplink shared channel.
  • a method for notifying a minimum time unit offset which includes a network device sending fourth indication information to a terminal device, where the fourth indication information is used to indicate the fifth minimum time unit offset;
  • the terminal device sends fifth indication information, where the fifth indication information is used to indicate the sixth minimum time unit offset, where the fifth minimum time unit offset is different from the sixth minimum time unit offset, and the network device sends the
  • the time unit in which the fifth indication information is located is after the time unit in which the network device sends the fourth indication information, and the time unit in which the network device sends the fifth indication information is offset from the effective time of the fifth minimum time unit Before the unit;
  • the network device uses the sixth minimum time unit offset to communicate with the terminal device in the sixth time unit, wherein the sixth time unit is not earlier than the effective time unit offset of the fifth minimum time unit offset
  • the time unit after the second duration, the second duration is the time required for the sixth minimum time unit offset to take effect; or if the fifth indication information is sent within the second time period, the network device ignores the fifth The minimum
  • one method is to After the minimum time unit offset takes effect, the offset for a period of time before the sixth time unit offset takes effect; another method is to determine whether the fifth indication information is in the second time period, and if it is in the second time period, disable it If the fifth minimum time unit offset is outside the second time period, the sixth minimum time unit offset is disabled. Both methods can avoid frequent switching of the minimum time unit offset and reduce the complexity of terminal device implementation.
  • the notification method further includes: The terminal device sends the information of the third duration.
  • a method for notifying a minimum time unit offset which includes a terminal device receiving fourth indication information sent by a network device, where the fourth indication information is used to indicate the fifth minimum time unit offset; the terminal device receives The fifth indication information sent by the network device is used to indicate the sixth minimum time unit offset, where the fifth minimum time unit offset is different from the sixth minimum time unit offset, and the terminal device
  • the time unit at which the fifth indication information is received is located after the time unit at which the terminal device receives the fourth indication information, and the time unit at which the terminal device receives the fifth indication information is offset by the fifth smallest time unit Before the effective time unit; the terminal device uses the sixth minimum time unit offset to communicate with the network device in the sixth time unit, wherein the sixth time unit is not earlier than the effective time unit of the fifth minimum time unit offset
  • the time unit shifted by the second duration, the second duration is the time required for the sixth minimum time unit offset to take effect; or if the fifth indication information is received within the second time period, the terminal device ignores the The fifth minimum time
  • the communication device is a terminal device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the above-mentioned processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit may be, for example, but not limited to, output to the transmitter and transmitted by the transmitter, and the input circuit and output
  • the circuit can be the same circuit, which is used as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • the processor in the above-mentioned twelfth aspect may be a chip, and the processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software
  • the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory.
  • the memory may be integrated in the processor, may be located outside the processor, and exist independently.
  • a computer program product includes: a computer program (also called code, or instruction), when the computer program is executed, the computer executes the first to sixth aspects. Aspect and the method in any one of the possible implementation manners of the first aspect to the sixth aspect.
  • a computer-readable medium stores a computer program (also called code, or instruction) when it runs on a computer, so that the computer executes the above-mentioned first aspect to The sixth aspect and the method in any one of the possible implementation manners of the first aspect to the sixth aspect.
  • a computer program also called code, or instruction
  • FIG. 5 is a schematic diagram of another method for notifying the minimum time unit offset provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of another method for notifying the minimum time unit offset provided by an embodiment of the present application.
  • the terminal device may be a device that provides voice/data connectivity to the user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and so on.
  • some examples of terminal devices are: mobile phones (mobile phones), tablet computers, notebook computers, handheld computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving (self-driving), wireless terminals in remote medical surgery, and smart grid (smart grid) Wireless terminals in transportation safety (transportation safety), wireless terminals in smart city (smart city), wireless terminals in smart home (smart home), cellular phones, cordless phones, session initiation protocols (session initiation) protocol, SIP) telephone, wireless local loop (WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device or other processing device connected to wireless modem, In-vehicle equipment, wearable equipment, terminal equipment in the future 5G network or terminal
  • each frame In the time domain, it can be divided into frames with a time length of 10ms. Each frame is divided into 10 subframes with the same size and a length of 1ms. Each subframe can contain one or more time slots. The number of time slots can be determined according to the sub-carrier spacing. For example, when the sub-carrier is 15 kHz, each sub-frame contains one time slot.
  • the time slot n2 where the HARQ-ACK is fed back is the second time slot
  • the first time slot is the second time slot n2 or a time slot after the second time slot n2.
  • the network equipment and the terminal equipment can Use the first minimum time slot offset to communicate from the first time slot (it can also be expressed that the first minimum time slot offset takes effect in the first time slot).
  • the first time slot may be the latest time slot among the time slots in which the second time slot n2 and the time slot n1 where the DCI is located are offset by the second minimum time slot offset, where the second minimum time slot offset Shift is the smallest slot offset currently in effect.
  • the network device When the network device does not receive the PUSCH sent by the terminal device in the time slot n4, it is considered that the terminal device has not received the DCI indicating the first minimum time slot offset, and the network device and the terminal device ignore the first minimum time slot, that is, the network device Continue to communicate with the terminal device using the currently effective second minimum time slot offset, and not update to the indicated first minimum time slot offset.
  • the time slot where the HARQ-ACK feedback used to determine the end time slot of the first time period is located may refer to: in the second indication information Then, between the time slot where the HARQ-ACK feedback corresponding to the PDSCH scheduled by the second indication information is located, there are other DCI scheduled PDSCHs, and among the other DCI scheduled PDSCHs between the PDSCH scheduled by the second indication information and the aforementioned time period, The time slot where the earliest HARQ-ACK is fed back.
  • the end time slot of the first time period is no earlier than the time slot in which the terminal device sends the second indication information to the network device the HARQ-ACK corresponding to the PDSCH scheduled by the DCI.
  • the second indication information is DCI, and DCI is used to indicate the third minimum slot offset.
  • the terminal equipment When the second indication information is uplink scheduling DCI, the terminal equipment will send the second indication information DCI scheduled PUSCH to the network equipment in the corresponding time slot.
  • the terminal equipment When the third indication information is uplink scheduling DCI, the terminal equipment will send the corresponding DCI to the network equipment.
  • the time slot sends the PUSCH scheduled by the third indication information DCI.
  • the start time slot of the first time period is no earlier than the time slot where the network device sends the second indication information
  • the end time slot of the first time period is no earlier than where the terminal device sends the PUSCH to the network device. Time slot.
  • the end time slot of the first time period can also be the end time slot of the first time period or the terminal
  • the device sends the time slot where the PUSCH is located, the time slot where the second indication information DCI is offset from the time slot after the currently effective minimum time slot offset, and the time slot where the second indication information DCI is offset from the first time slot.
  • the latest time slot is then offset from the time slot determined by the offset value configured by the network device.
  • FIG. 10 is a schematic diagram of another method for notifying the minimum time unit offset provided by an embodiment of the present application.
  • the network device Before the fifth minimum time slot offset takes effect, the network device sends fifth indication information to the terminal device between time slot n and time slot n+X.
  • the fifth indication information is used to indicate the sixth minimum time slot offset.
  • the sixth minimum slot offset is different from the fifth minimum slot offset.
  • FIG. 11 is a schematic diagram of another method for notifying the minimum time unit offset provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of another method for notifying the minimum time unit offset provided by an embodiment of the present application.
  • the start time of the second time period is the time slot n for sending the fourth indication information, and the end time of the second time period is not later than the effective time slot of the fifth smallest time slot offset.
  • the time interval of the second time period can be configured by the network device or a time parameter is predefined, which is not limited here.
  • each network element such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above-mentioned functions.
  • this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of protection of this application.
  • the embodiments of the present application can divide the transmitting end device or the receiving end device into functional modules based on the foregoing method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one process.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other feasible division methods in actual implementation. The following is an example of dividing each function module corresponding to each function as an example.
  • the communication device 1300 may be used to perform the actions performed by the network device in the above method embodiment.
  • the communication device 1300 may be a network device or a component configurable in the network device, and the transceiver unit 1310 is used to perform the above
  • the processing unit 1320 is configured to perform the processing-related operations on the network device side in the above method embodiments for the operations related to receiving and sending on the network device side.
  • the first duration is determined according to at least one of the following parameters: the processing capability of the terminal device, and the subcarrier interval used by the transceiver unit.
  • the uplink information includes feedback information of a physical downlink shared channel or a physical uplink shared channel.
  • the uplink information includes feedback information of a physical downlink shared channel or a physical uplink shared channel.
  • the communication device 1400 includes one or more processors 1410.
  • the communication device 1400 is used to implement the operations performed by the terminal device in the foregoing method embodiments.
  • the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device.
  • FIG. 16 shows a simplified schematic diagram of the base station structure.
  • the base station includes 1616 parts and 1620 parts.
  • the 1616 part is mainly used for receiving and sending radio frequency signals and the conversion between radio frequency signals and baseband signals; the 1620 part is mainly used for baseband processing and controlling the base station.
  • the 1616 part can generally be called a transceiver unit, transceiver, transceiver circuit, or transceiver.
  • the 1620 part is usually the control center of the base station, and can usually be called a processing unit, which is used to control the base station to perform the processing operations on the network device side in the above method embodiment.
  • the 1620 part may include one or more single boards, and each single board may include one or more processors and one or more memories.
  • the processor is used to read and execute programs in the memory to implement baseband processing functions and control the base station. If there are multiple boards, each board can be interconnected to enhance processing capabilities. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processing at the same time. Device.
  • the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to: wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM).
  • RAM can be used as an external cache.
  • RAM may include the following various forms: static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM) , Double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) and Direct RAM Bus RAM (DR RAM).
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous DRAM
  • Double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Direct RAM Bus RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.
  • the functional units in the various embodiments of the present application may be integrated into one unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer may be a personal computer, a server, or a network device.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the medium can include but is not limited to: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

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

Abstract

L'invention concerne un procédé et un appareil permettant de notifier un décalage d'unité de temps minimal, ce qui permet d'améliorer la fiabilité et la précision de communication. Le procédé comprend les étapes suivantes : un dispositif réseau envoie des premières informations d'indication à un dispositif terminal, les premières informations d'indication étant utilisées pour indiquer un premier décalage d'unité de temps minimal, et le décalage d'unité de temps minimal actuellement utilisé par le dispositif terminal et le dispositif réseau étant un second décalage d'unité de temps minimal ; et si le dispositif réseau reçoit des informations de liaison montante envoyées par le dispositif terminal dans une première unité de temps ou avant la première unité de temps, le dispositif réseau communique avec le dispositif terminal au moyen du premier décalage d'unité de temps minimal, la première unité de temps n'étant pas antérieure à une seconde unité de temps utilisée pour la transmission d'informations de liaison montante et indiquée au dispositif terminal par le dispositif réseau au moyen des premières informations d'indication, et une unité de temps de démarrage que le dispositif réseau utilise pour communiquer avec le dispositif terminal au moyen du premier décalage d'unité de temps minimal n'étant pas antérieure à la première unité de temps.
PCT/CN2019/111104 2019-10-14 2019-10-14 Procédé et appareil permettant de notifier un décalage d'unité de temps minimal WO2021072608A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108631969A (zh) * 2017-03-21 2018-10-09 中国移动通信有限公司研究院 一种指示信息的发送方法、接收方法、基站及终端
WO2019031834A1 (fr) * 2017-08-08 2019-02-14 Samsung Electronics Co., Ltd. Procédé et appareil d'émission et de réception d'informations permettant de demander un accès aléatoire dans un système de communication sans fil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108631969A (zh) * 2017-03-21 2018-10-09 中国移动通信有限公司研究院 一种指示信息的发送方法、接收方法、基站及终端
WO2019031834A1 (fr) * 2017-08-08 2019-02-14 Samsung Electronics Co., Ltd. Procédé et appareil d'émission et de réception d'informations permettant de demander un accès aléatoire dans un système de communication sans fil

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MEDIATEK INC.: "Summary of Offline on Cross-Slot Scheduling", 3GPP DRAFT; R1-1905819_SUMMARY OF OFFLINE ON CROSS-SLOT SCHEDULING_0411_FINAL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Xi’an, China; 20190408 - 20190412, 15 April 2019 (2019-04-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051707866 *
QUALCOMM INCORPORATED: "Cross-slot scheduling power saving techniques", 3GPP DRAFT; R1-1911130 CROSS-SLOT SCHEDULING POWER SAVING TECHNIQUES, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 5 October 2019 (2019-10-05), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051789906 *

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