WO2019033392A1 - Procédé d'émission de signal, dispositif terminal et dispositif réseau - Google Patents

Procédé d'émission de signal, dispositif terminal et dispositif réseau Download PDF

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Publication number
WO2019033392A1
WO2019033392A1 PCT/CN2017/098036 CN2017098036W WO2019033392A1 WO 2019033392 A1 WO2019033392 A1 WO 2019033392A1 CN 2017098036 W CN2017098036 W CN 2017098036W WO 2019033392 A1 WO2019033392 A1 WO 2019033392A1
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WIPO (PCT)
Prior art keywords
physical resource
dci
terminal device
synchronization signal
signal block
Prior art date
Application number
PCT/CN2017/098036
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English (en)
Chinese (zh)
Inventor
陈文洪
张治�
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Oppo广东移动通信有限公司
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Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201780048039.2A priority Critical patent/CN109565768B/zh
Priority to PCT/CN2017/098036 priority patent/WO2019033392A1/fr
Publication of WO2019033392A1 publication Critical patent/WO2019033392A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access

Definitions

  • the embodiments of the present application relate to the field of wireless communications, and, more particularly, to a method, a terminal device, and a network device for signal transmission.
  • the terminal device completes the initial access process by detecting a Synchronizing Signal Block (SS Block), and each synchronization signal block includes a Primary Synchronization Signal (PSS). , Secondary Synchronization Signal (SSS) and Physical Broadcast Channel (PBCH).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Physical Broadcast Channel
  • the terminal device can detect the synchronization signal on multiple transmission resources distributed on a periodic basis, but the network device does not necessarily send the synchronization signal block on each transmission resource, and the terminal device does not know that the transmission resources can be detected.
  • the sync signal block if the terminal device detects the sync signal block on each transmission resource, adds unnecessary detection complexity.
  • the first aspect provides a method for signal transmission, including: detecting, by a terminal device, downlink control information DCI on a physical downlink control channel PDCCH, where the DCI is used for scheduling transmission of a signal on a first physical resource; When the device detects the DCI, the synchronization signal block is not detected on the first physical resource.
  • the terminal device may not detect the synchronization signal block on the first physical resource scheduled by the DCI, thereby reducing the detection complexity of the synchronization signal block by the terminal device.
  • the method further includes: if the terminal device does not detect the DCI, detecting the synchronization signal block on the first physical resource.
  • the method further includes: when detecting the DCI, the terminal device detects the signal of the DCI scheduling on the first physical resource.
  • the first physical resource and the second physical resource are at least partially Overlap
  • the second physical resource is a reserved physical resource for transmitting a synchronization signal block.
  • the first physical resource includes a time domain resource, a frequency domain resource, or a time-frequency resource.
  • the time domain resource includes an orthogonal frequency division multiplexing OFDM symbol, a time slot, or a mini time slot.
  • the first physical resource is a time slot or a mini time slot for transmitting the PDCCH.
  • the signal of the DCI scheduling includes a physical uplink shared channel (PUSCH), a physical downlink shared channel (PDSCH), an aperiodic channel state indication reference signal (CSI-RS), or a periodic sounding reference signal.
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink shared channel
  • CSI-RS aperiodic channel state indication reference signal
  • SRS periodic sounding reference signal
  • the network device sends the DCI on the PDCCH, and does not send the synchronization signal on the first physical resource scheduled by the DCI, so that the terminal device does not detect the synchronization signal on the first physical resource when detecting the DCI on the PDCCH.
  • the block reduces the detection complexity of the synchronization signal block by the terminal device.
  • the first physical resource and the second physical resource at least partially overlap, and the second physical resource is a reserved physical resource for transmitting a synchronization signal block.
  • the network device does not send the synchronization signal block on the first physical resource, including: the network device is not reserved in the first physical resource for transmitting a synchronization signal block. On the physical resource, the synchronization signal block is transmitted.
  • the first physical resource includes a time domain resource, a frequency domain resource, or a time-frequency resource.
  • the time domain resource includes an orthogonal frequency division multiplexing OFDM symbol Number, time slot or mini time slot.
  • the first physical resource is a time slot or a mini time slot for transmitting the PDCCH.
  • the signal of the DCI scheduling includes a physical uplink shared channel (PUSCH), a physical downlink shared channel (PDSCH), an aperiodic channel state indication reference signal (CSI-RS), or a periodic sounding reference signal.
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink shared channel
  • CSI-RS aperiodic channel state indication reference signal
  • SRS periodic sounding reference signal
  • a terminal device which can perform the operations of the terminal device in the above first aspect or any optional implementation manner of the first aspect.
  • the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the first aspect or the first aspect described above.
  • a network device which can perform the operations of the network device in any of the foregoing optional implementations of the second aspect or the second aspect.
  • the network device may comprise a modular unit for performing the operations of the network device in any of the possible implementations of the second aspect or the second aspect described above.
  • a terminal device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in the first aspect or any possible implementation manner of the first aspect, or the execution causes the terminal device to implement the terminal provided by the third aspect device.
  • a network device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the network device to perform the method in any of the possible implementations of the second aspect or the second aspect, or the execution causes the network device to implement the network provided by the fourth aspect device.
  • a computer readable storage medium storing a program causing the terminal device to perform the signal transmission of any of the above first aspects, and various implementations thereof Methods.
  • a computer readable storage medium storing a program causing a network device to perform the second aspect described above, and various implementations thereof Any of the methods of signal transmission.
  • a system chip comprising an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing The method of any of the first aspect or any of the possible implementations of the first aspect.
  • a system chip includes an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing The method of any of the second aspect or any possible implementation of the second aspect.
  • a computer program product comprising instructions which, when executed on a computer, cause the computer to perform the method of any of the second aspect or the second aspect of the second aspect.
  • FIG. 1 is a schematic structural diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for signal transmission according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for signal transmission in an embodiment of the present application.
  • FIG. 4 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Multiple access
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • Universal Mobile Telecommunications System Universal Mobile Telecommunication System, UMTS
  • future 5G communication systems such as a Global System of Mobile Communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a wideband code.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • Universal Mobile Telecommunications System Universal Mobile Telecommunications System
  • UMTS Universal Mobile Telecommunications System
  • the present application describes various embodiments in connection with a terminal device.
  • the terminal device may also refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user agent.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • PLMN public land mobile network
  • the present application describes various embodiments in connection with a network device.
  • the network device may be a device for communicating with the terminal device, for example, may be a base station (Base Transceiver Station, BTS) in the GSM system or CDMA, or may be a base station (NodeB, NB) in the WCDMA system, or may be An evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a network side device in a future 5G network or a future evolved PLMN network. Network side devices, etc.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system in FIG. 1 may include a network device 10 and a terminal device 20.
  • the network device 10 is configured to provide communication services for the terminal device 20 and access the core network.
  • the terminal device 20 can access the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 10, thereby performing communication with the network.
  • the arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 20 and the network device 10.
  • the network in the embodiment of the present application may refer to a Public Land Mobile Network (PLMN) or a Device to Device (D2D) network or a Machine to Machine/Man (M2M) network.
  • PLMN Public Land Mobile Network
  • D2D Device to Device
  • M2M Machine to Machine/Man
  • FIG. 1 is only a simplified schematic diagram of an example, and other terminal devices may also be included in the network, which are not shown in FIG.
  • FIG. 2 is a schematic flowchart of a method for signal transmission according to an embodiment of the present application.
  • the method shown in FIG. 2 can be performed by a terminal device, which can be, for example, the terminal device 20 shown in FIG. 1.
  • the method for transmitting signals includes:
  • the terminal device detects DCI on the PDCCH, wherein the DCI is used to schedule transmission of signals on the first physical resource.
  • the first physical resource includes a time domain resource, a frequency domain resource, or a time-frequency resource.
  • the time domain resource includes an Orthogonal Frequency Division Multiplexing (OFDM) symbol, a slot, or a mini-slot.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the first physical resource is a time slot or a mini time slot in which the PDCCH is located.
  • the first physical resource and the second physical resource at least partially overlap, and the second physical resource is a reserved physical resource for transmitting the synchronization signal block SS Block.
  • the SS Block may include a synchronization signal (PSS, SSS) and a PBCH.
  • the first physical resource may be a reserved physical resource for transmitting the synchronization signal block SS Block, or a time domain between the first physical resource and the reserved physical resource for transmitting the synchronization signal block. / or overlap in the frequency domain.
  • the second physical resource may be, for example, a reserved time domain resource for transmitting a synchronization signal block, such as a number of OFDM symbols reserved for transmission of a synchronization signal block; or may be reserved for transmitting a synchronization signal block Frequency domain resources, such as several PRBs reserved for the transmission of synchronization signal blocks.
  • the second physical resource may include multiple physical resources that are periodically distributed.
  • the second physical resource may be, for example, pre-approved by the network device and the terminal device, and pre-stored in the terminal device.
  • the terminal device detects the DCI, the synchronization signal block is not detected on the first physical resource.
  • the terminal device detects the DCI on the PDCCH, and if the terminal device detects the DCI, does not detect the synchronization signal block on the first physical resource scheduled by the DCI. Since the terminal device may not detect the synchronization signal block on the first physical resource when detecting the DCI, the detection complexity of the synchronization signal block by the terminal device may be reduced.
  • the terminal device detects the DCI, detecting the synchronization signal block on the first physical resource, if the terminal device detects the DCI, not in the first physical resource. Detecting the synchronization signal on a reserved physical resource for transmitting a synchronization signal block Piece.
  • the method further includes: sending, by the network device, the signal of the DCI scheduling on the first physical resource.
  • the network device does not send the synchronization signal block on the first physical resource, including: the network device is not on the physical resource for transmitting the synchronization signal block reserved in the first physical resource, and is sent The sync signal block.
  • the network device may not send the synchronization signal block in the time slot in which the PDCCH is located.
  • the network device may not send the synchronization signal block in the M symbols. However, on other symbols than the M symbols in the time slot, the network device can transmit a synchronization signal block.
  • the first physical resource includes a time domain resource, a frequency domain resource, or a time-frequency resource.
  • the time domain resource comprises an orthogonal frequency division multiplexing OFDM symbol, a time slot or a mini time slot.
  • the first physical resource is a time slot or a mini time slot for transmitting the PDCCH.
  • the signal of the DCI scheduling includes a physical uplink shared channel PUSCH, and The downlink shared channel PDSCH, the aperiodic channel state indication reference signal CSI-RS, or the periodic sounding reference signal SRS.
  • the network device determines the specific details of the process of not transmitting the synchronization signal block on the physical resources. For reference, the related description of the terminal device in FIG. 2 is omitted, and details are not described herein for brevity.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application.
  • the implementation of the examples constitutes any limitation.
  • FIG. 4 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 4, the terminal device 400 includes a detecting unit 410, and the detecting unit 410 is configured to:
  • the downlink control information DCI is detected on the physical downlink control channel PDCCH, where the DCI is used to schedule transmission of a signal on the first physical resource; if the DCI is detected, the synchronization signal block is not detected on the first physical resource.
  • the terminal device may not detect the synchronization signal block on the first physical resource scheduled by the DCI, thereby reducing the detection complexity of the synchronization signal block by the terminal device.
  • the detecting unit 410 is further configured to: when the DCI is not detected, detect the synchronization signal block on the first physical resource.
  • the detecting unit 410 is further configured to: when the DCI is detected, detect the signal of the DCI scheduling on the first physical resource.
  • the first physical resource and the second physical resource at least partially overlap, and the second physical resource is a reserved physical resource for transmitting a synchronization signal block.
  • the first physical resource includes a time domain resource, a frequency domain resource, or a time-frequency resource.
  • the time domain resource comprises an orthogonal frequency division multiplexing OFDM symbol, a time slot or a mini time slot.
  • the signal of the DCI scheduling includes a physical uplink shared channel (PUSCH), a physical downlink shared channel (PDSCH), an aperiodic channel state indication reference signal (CSI-RS), or a periodic sounding reference signal SRS.
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink shared channel
  • CSI-RS aperiodic channel state indication reference signal
  • SRS periodic sounding reference signal
  • FIG. 5 is a schematic block diagram of a network device 500 in accordance with an embodiment of the present application.
  • the network device 500 includes a transmitting unit 510 and a determining unit 520. among them:
  • the sending unit 510 is configured to send downlink control information DCI on the physical downlink control channel PDCCH, where the DCI is used to schedule transmission of a signal on the first physical resource;
  • the determining unit 520 is configured to determine that the synchronization signal block is not sent on the first physical resource.
  • the network device sends the DCI on the PDCCH, and does not send the synchronization signal on the first physical resource scheduled by the DCI, so that the terminal device does not detect the synchronization signal on the first physical resource when detecting the DCI on the PDCCH.
  • the block reduces the detection complexity of the synchronization signal block by the terminal device.
  • the sending unit 510 is further configured to: send the signal of the DCI scheduling on the first physical resource.
  • the first physical resource and the second physical resource at least partially overlap, and the second physical resource is a reserved physical resource for transmitting a synchronization signal block.
  • the determining unit 520 is specifically configured to: determine to send the synchronization signal block on a physical resource that is not reserved in the first physical resource for transmitting a synchronization signal block.
  • the first physical resource includes a time domain resource, a frequency domain resource, or a time-frequency resource.
  • the time domain resource comprises an orthogonal frequency division multiplexing OFDM symbol, a time slot or a mini time slot.
  • the first physical resource is a time slot or a mini time slot for transmitting the PDCCH.
  • the signal of the DCI scheduling includes a physical uplink shared channel (PUSCH), a physical downlink shared channel (PDSCH), an aperiodic channel state indication reference signal (CSI-RS), or a periodic sounding reference signal SRS.
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink shared channel
  • CSI-RS aperiodic channel state indication reference signal
  • SRS periodic sounding reference signal
  • FIG. 6 is a schematic structural diagram of a terminal device 600 according to an embodiment of the present application.
  • the terminal device includes a processor 610, a transceiver 620, and a memory 630, wherein the processor 610, the transceiver 620, and the memory 630 communicate with each other through an internal connection path.
  • the memory 630 is configured to store instructions for executing the instructions stored by the memory 630 to control the transceiver 620 to receive signals or transmit signals.
  • the transceiver 620 is configured to:
  • the downlink control information DCI is detected on the physical downlink control channel PDCCH, where the DCI is used to schedule transmission of a signal on the first physical resource; if the DCI is detected, the synchronization signal block is not detected on the first physical resource.
  • the transceiver 620 is further configured to: if the DCI is not detected, detect the synchronization signal block on the first physical resource.
  • the transceiver 620 is further configured to: when the DCI is detected, detect the signal of the DCI scheduling on the first physical resource.
  • the transceiver 620 is specifically configured to: if the DCI is detected, not detecting the synchronization signal block on a physical resource for transmitting a synchronization signal block reserved in the first physical resource.
  • the first physical resource includes a time domain resource, a frequency domain resource, or a time-frequency resource.
  • the time domain resource comprises an orthogonal frequency division multiplexing OFDM symbol, a time slot or a mini time slot.
  • the first physical resource is a time slot or a mini time slot for transmitting the PDCCH.
  • the signal of the DCI scheduling includes a physical uplink shared channel (PUSCH), a physical downlink shared channel (PDSCH), an aperiodic channel state indication reference signal (CSI-RS), or a periodic sounding reference signal SRS.
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink shared channel
  • CSI-RS aperiodic channel state indication reference signal
  • SRS periodic sounding reference signal
  • the time domain resource comprises an orthogonal frequency division multiplexing OFDM symbol, a time slot or a mini time slot.
  • the first physical resource is a time slot or a mini time slot for transmitting the PDCCH.
  • the signal of the DCI scheduling includes a physical uplink shared channel (PUSCH), a physical downlink shared channel (PDSCH), an aperiodic channel state indication reference signal (CSI-RS), or a periodic sounding reference signal SRS.
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink shared channel
  • CSI-RS aperiodic channel state indication reference signal
  • SRS periodic sounding reference signal
  • the processor 710 may be a central processing unit (CPU), and the processor 710 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • FIG. 8 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • the system chip 800 of FIG. 8 includes an input interface 801, an output interface 802, at least one processor 803, and a memory 804.
  • the input interface 801, the output interface 802, the processor 803, and the memory 804 are interconnected by an internal connection path.
  • the processor 803 is configured to execute code in the memory 804.
  • the processor 803 can implement the method 300 performed by the network device in a method embodiment. For the sake of brevity, it will not be repeated here.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one monitoring unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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

Abstract

La présente invention concerne un procédé d'émission de signal, un dispositif terminal et un dispositif réseau. Le procédé comprend les étapes suivantes : le dispositif terminal détecte des informations de commande de liaison descendante (DCI) sur un canal de commande de liaison descendante physique (PDCCH), les DCI étant utilisées pour programmer l'émission d'un signal sur une première ressource physique; si les DCI sont détectées par le dispositif terminal, le dispositif terminal ne détecte pas un bloc de signaux de synchronisation sur la première ressource physique. Par conséquent, lorsque les DCI sont détectées par le dispositif terminal, le dispositif terminal peut ne pas détecter le bloc de signaux de synchronisation sur la première ressource physique programmée par les DCI, afin de réduire la complexité de détection du dispositif terminal sur le bloc de signaux de synchronisation.
PCT/CN2017/098036 2017-08-18 2017-08-18 Procédé d'émission de signal, dispositif terminal et dispositif réseau WO2019033392A1 (fr)

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CN201780048039.2A CN109565768B (zh) 2017-08-18 2017-08-18 信号传输的方法、终端设备和网络设备
PCT/CN2017/098036 WO2019033392A1 (fr) 2017-08-18 2017-08-18 Procédé d'émission de signal, dispositif terminal et dispositif réseau

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CN112888066B (zh) * 2019-11-29 2023-07-25 中国移动通信有限公司研究院 Pdcch的发送方法、接收方法、装置及节点设备
WO2021155602A1 (fr) * 2020-02-07 2021-08-12 Oppo广东移动通信有限公司 Procédé, appareil et dispositif de transmission de signal

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