WO2022236965A1 - Procédé de communication sans fil, dispositif terminal et dispositif de réseau - Google Patents

Procédé de communication sans fil, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2022236965A1
WO2022236965A1 PCT/CN2021/108661 CN2021108661W WO2022236965A1 WO 2022236965 A1 WO2022236965 A1 WO 2022236965A1 CN 2021108661 W CN2021108661 W CN 2021108661W WO 2022236965 A1 WO2022236965 A1 WO 2022236965A1
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WIPO (PCT)
Prior art keywords
subcarrier spacing
terminal device
timing value
uplink
timing
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PCT/CN2021/108661
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English (en)
Chinese (zh)
Inventor
吴作敏
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Oppo广东移动通信有限公司
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Priority to CN202180097302.3A priority Critical patent/CN117203924A/zh
Publication of WO2022236965A1 publication Critical patent/WO2022236965A1/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

Definitions

  • the embodiments of the present application relate to the communication field, and in particular to a wireless communication method, a terminal device, and a network device.
  • a terminal device needs to consider timing advance (Timing Advance, TA) when performing uplink transmission.
  • Timing Advance TA
  • NTN non-Terrestrial Networks
  • network equipment needs to broadcast a common timing value for TA adjustment when terminal equipment in an idle state, inactive state, or connected state performs uplink channel or uplink signal transmission.
  • the present application provides a wireless communication method, a terminal device and a network device, capable of timely adjusting the uplink transmission of the terminal device.
  • a wireless communication method including: a terminal device determines a first timing value according to first information sent by a network device, wherein the first information is used to indicate the first timing value according to a first subcarrier interval A certain timing value; the terminal device determines timing information of the first uplink transmission according to the first timing value.
  • a wireless communication method including: a network device sending first information to a terminal device, where the first information is used to indicate a first timing value according to a first subcarrier interval, and the first The timing value is used to determine the timing information of the first uplink transmission.
  • a terminal device configured to execute the method in the foregoing first aspect or various implementation manners thereof.
  • the terminal device includes a functional module for executing the method in the above first aspect or its various implementation manners.
  • a network device configured to execute the method in the foregoing second aspect or various implementation manners thereof.
  • the network device includes a functional module for executing the method in the above second aspect or each implementation manner thereof.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.
  • a sixth aspect provides a network device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above second aspect or its various implementations.
  • a chip is provided for implementing any one of the above first aspect to the second aspect or the method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first to second aspects or any of the implementations thereof. method.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.
  • a ninth aspect provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above first to second aspects or the method in each implementation manner.
  • a computer program which, when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
  • the terminal device can determine the first timing value according to the first information indicated by the network device according to the first subcarrier spacing, and further determine the timing information of the first uplink transmission according to the first timing value, so that the terminal device can Before performing the first uplink transmission, TA adjustment can be performed based on the timing information. Based on the above TA adjustment, it is beneficial to ensure that both the timing accuracy of the initial transmission and the subsequent slow timing adjustment value meet the indicators required for uplink transmission.
  • FIGS. 1A-1C are schematic diagrams of an application scenario provided by an embodiment of the present application.
  • Fig. 2 is a schematic diagram of a timing relationship of an NTN system provided by the present application.
  • Fig. 3 is a schematic diagram of another NTN system timing relationship provided by the present application.
  • Fig. 4 is a schematic diagram of the timing relationship between the downlink frame and the uplink frame of the terminal equipment in the NTN system.
  • Fig. 5 is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.
  • Fig. 6 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a network device provided according to an embodiment of the present application.
  • Fig. 8 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 9 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • Fig. 10 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.
  • GSM Global System of Mobile
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in the embodiment of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and can also be applied to an independent (Standalone, SA ) meshing scene.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA independent meshing scene
  • the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to a licensed spectrum, Wherein, the licensed spectrum can also be regarded as a non-shared spectrum.
  • the communication system in the embodiment of the present application can be applied to the FR1 frequency band (corresponding to the frequency range of 410MHz to 7.125GHz), and can also be applied to the FR2 frequency band (corresponding to the frequency range of 24.25GHz to 52.6GHz), and can also be applied to The new frequency band corresponds to, for example, a high-frequency frequency band ranging from 52.6 GHz to 71 GHz.
  • the embodiments of the present application may be applied to a non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, and may also be applied to a terrestrial communication network (Terrestrial Networks, TN) system.
  • NTN non-terrestrial communication network
  • TN terrestrial communication network
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • wireless communication device user agent or user device
  • the terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) terminal Equipment
  • wireless terminal equipment in industrial control wireless terminal equipment in self driving
  • wireless terminal equipment in remote medical wireless terminal equipment in smart grid
  • wireless terminal equipment in transportation safety wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • the terminal equipment involved in the embodiments of the present application may also be referred to as terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station , remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • Terminal equipment can also be fixed or mobile.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device may be a device for communicating with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , or a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolutional Node B, eNB or eNodeB evolved base station
  • LTE Long Term Evolutional Node B, eNB or eNodeB
  • gNB network equipment in the network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network equipment may be a satellite or a balloon station.
  • the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
  • the network device may also be a base station installed on land, water, and other locations.
  • the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), and the small cell here may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell ( Pico cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the transmission resources for example, frequency domain resources, or spectrum resources
  • the cell may be a network device (
  • the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell)
  • the small cell here may include: a metro cell (Metro cell), a micro cell (Micro
  • FIG. 1A is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • a communication system 100 may include a network device 110, and the network device 110 may be a device for communicating with a terminal device 120 (or called a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area.
  • FIG. 1A exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.
  • FIG. 1B is a schematic structural diagram of another communication system provided by an embodiment of the present application.
  • a terminal device 1101 and a satellite 1102 are included, and wireless communication can be performed between the terminal device 1101 and the satellite 1102 .
  • the network formed between the terminal device 1101 and the satellite 1102 may also be referred to as NTN.
  • the satellite 1102 may function as a base station, and the terminal device 1101 and the satellite 1102 may communicate directly. Under the system architecture, the satellite 1102 can be referred to as a network device.
  • the communication system may include multiple network devices 1102, and the coverage of each network device 1102 may include other numbers of terminal devices, which is not limited in this embodiment of the present application.
  • FIG. 1C is a schematic structural diagram of another communication system provided by an embodiment of the present application.
  • it includes a terminal device 1201 , a satellite 1202 and a base station 1203 , wireless communication can be performed between the terminal device 1201 and the satellite 1202 , and communication can be performed between the satellite 1202 and the base station 1203 .
  • the network formed among the terminal equipment 1201, the satellite 1202 and the base station 1203 may also be referred to as NTN.
  • the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be relayed through the satellite 1202 .
  • the base station 1203 may be called a network device.
  • the communication system may include multiple network devices 1203, and the coverage of each network device 1203 may include other numbers of terminal devices, which is not limited in this embodiment of the present application.
  • Fig. 1A-Fig. 1C are only illustrations of the systems to which this application is applicable.
  • the methods shown in the embodiments of this application can also be applied to other systems, for example, 5G communication systems, LTE communication systems, etc. , which is not specifically limited in this embodiment of the present application.
  • the wireless communication system shown in FIG. 1A-FIG. 1C may also include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF), etc. , which is not limited in this embodiment of the present application.
  • MME Mobility Management Entity
  • AMF Access and Mobility Management Function
  • a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device.
  • the communication equipment may include a network equipment 110 and a terminal equipment 120 with communication functions, and the network equipment 110 and the terminal equipment 120 may be the specific equipment described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • “configuration” may include that the network device sends instruction information to the terminal device to complete.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • predefined or “preconfigured” can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
  • the application does not limit its specific implementation.
  • pre-defined may refer to defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, which is not limited in the present application.
  • NTN generally adopts satellite communication to provide communication services to ground users.
  • satellite communication has many unique advantages.
  • satellite communication is not restricted by the user's region.
  • general land communication cannot cover areas such as oceans, mountains, deserts, etc. that cannot be equipped with communication equipment or are not covered by communication due to sparse population.
  • satellite communication due to a Satellites can cover a large area of the ground, and satellites can orbit the earth, so theoretically every corner of the earth can be covered by satellite communications.
  • satellite communication has great social value.
  • Satellite communication can be covered at a lower cost in remote mountainous areas, poor and backward countries or regions, so that people in these regions can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital gap with developed regions and promoting development of these areas.
  • the distance of satellite communication is long, and the cost of communication does not increase significantly with the increase of communication distance; finally, the stability of satellite communication is high, and it is not limited by natural disasters.
  • Communication satellites are divided into Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (MEO) satellites, Geostationary Earth Orbit (GEO) satellites, and high elliptical orbit satellites according to their orbital heights. (High Elliptical Orbit, HEO) satellites and so on.
  • LEO Low-Earth Orbit
  • MEO Medium-Earth Orbit
  • GEO Geostationary Earth Orbit
  • HEO High Elliptical Orbit
  • Low orbit satellites range in altitude from 500km to 1500km, and the corresponding orbit period is about 1.5 hours to 2 hours.
  • the signal propagation delay of single-hop communication between users is generally less than 20ms.
  • the maximum satellite visible time is 20 minutes.
  • the signal propagation distance is short, the link loss is small, and the requirements for the transmission power of the user terminal equipment are not high.
  • Geosynchronous Orbit (GEO) satellites have an orbital altitude of 35786km and a 24-hour rotation period around the Earth.
  • the signal propagation delay of single-hop communication between users is generally 250ms.
  • satellites use multi-beams to cover the ground.
  • a satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover tens to hundreds of kilometers in diameter. ground area.
  • the propagation delay of signal communication is usually less than 1 ms.
  • the propagation delay of signal communication is very large, ranging from tens of milliseconds to hundreds of milliseconds, depending on the satellite orbital height and The business type of satellite communication is related.
  • the timing relationship of the NTN system needs to be enhanced relative to the NR system.
  • the UE In the NTN system (such as NR-NTN system or Internet of Things NTN (Internet of Things NTN, IoT-NTN) system), like the NR system, UE needs to consider the impact of timing advance (Timing Advance, TA) when performing uplink transmission . Since the propagation delay in the system is relatively large, the range of the TA value is also relatively large.
  • TA Timing Advance
  • the UE When the UE is scheduled to perform uplink transmission in time unit (such as time slot or subframe) n, the UE considers the round-trip propagation delay and transmits in advance during uplink transmission, so that the uplink transmission on the network device side can be realized when the signal arrives at the network device side time unit n.
  • the timing relationship in the NTN system may include two situations, as shown in Fig. 2 and Fig. 3 below respectively.
  • Case 1 As shown in FIG. 2 , the downlink (downlink, DL) time unit and the uplink (uplink, UL) time unit on the network device side are aligned. Correspondingly, in order to make the uplink transmission of the UE arrive at the network device side aligned with the uplink time unit of the network device side, the UE needs to use a larger TA value. In some cases, the TA value corresponds to an offset value Koffset.
  • Case 2 is shown in FIG. 3 , there is an offset value between the downlink time unit and the uplink time unit on the network device side.
  • the UE if the uplink transmission of the UE is to be aligned with the uplink time unit of the network device when it arrives at the network device side, the UE only needs to use a smaller TA value.
  • the TA value corresponds to an offset value Koffset.
  • the RTT of the UE corresponds to the offset value Koffset.
  • network equipment needs to send synchronization assistance information such as ephemeris information (satellite moving speed and/or satellite position), reference point position, public timing value (such as timing value between network equipment and reference point, and/or, the timing value between the network equipment and the satellite, and/or, the timing value between the satellite and the reference point (in some cases, also known as the timing value of the feeder link), time At least one item of information such as a timestamp (timestamp) is used for the terminal device to complete time domain and/or frequency domain synchronization.
  • timestamp time At least one item of information
  • the terminal device needs to obtain the synchronization assistance information sent by the network device, and at the same time complete corresponding time domain and/or frequency domain synchronization according to its own GNSS capability.
  • a terminal device should obtain at least one of the following information based on its GNSS capabilities: position, time reference and frequency reference of the terminal device. Moreover, based on the above information, as well as the synchronization assistance information indicated by the network device (such as ephemeris information or time stamp of the serving satellite), the terminal device can calculate the timing and/or frequency offset, and apply the timing in the idle state or the inactive state or the connected state. Advance compensation and/or frequency offset adjustment.
  • the terminal device may calculate the TA value according to the following formula, and perform uplink channel or uplink signal transmission according to the determined TA.
  • T TA (N TA +N TA,UE-specific +N TA,offset +N TA,common )*Tc
  • the terminal device needs to jointly estimate or update the TA according to at least one of the TA value estimated by the terminal device itself, the public timing offset value, and the TA value indicated by the network device.
  • FIG. 4 shows a schematic diagram of the timing relationship between the downlink frame and the uplink frame of the terminal equipment in the NTN system.
  • network devices need to broadcast a public timing value, which is used to determine TA adjustment when terminal devices in an idle state, inactive state, or connected state perform uplink channel or uplink signal transmission.
  • a public timing value which is used to determine TA adjustment when terminal devices in an idle state, inactive state, or connected state perform uplink channel or uplink signal transmission.
  • how to notify the public timing value for example, how to determine the granularity corresponding to the notification of the public timing value, so that terminal equipment in the idle state, inactive state or connected state can complete the corresponding TA when performing uplink channel or uplink signal transmission Adjustment is an urgent problem.
  • FIG. 5 is a schematic interaction diagram of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 5 , the wireless communication method 200 may include at least part of the following content:
  • the network device sends first information to the terminal device, where the first information is used to indicate a first timing value according to the first subcarrier spacing;
  • the terminal device receives the first information sent by the network device.
  • the terminal device determines the first timing value according to the first information sent by the network device;
  • the terminal device determines timing information of the first uplink transmission according to the first timing value.
  • the first uplink transmission may be performed based on timing information of the first uplink transmission.
  • the embodiment of the present application can be applied to the NTN network, or can also be applied to other networks that need to adjust the timing information, which is not limited in the present application.
  • the embodiment of the present application may be applied to a terminal device in any state, for example, a terminal device in an idle state, and/or a terminal device in an inactive state, and/or a terminal device in a connected state.
  • the first information is sent through a system message or a public radio resource control (Radio Resource Control, RRC) message.
  • RRC Radio Resource Control
  • the first information may be cell-level information, that is, the first information may be applicable to all terminal devices in the cell.
  • the first information may be sent through a public message or channel.
  • the first subcarrier spacing is determined according to at least one of the following:
  • the subcarrier spacing corresponding to the first bandwidth part (Band Width Part, BWP);
  • RAR Random Access Response
  • the system corresponding to the network device.
  • the first subcarrier interval is associated with a frequency band.
  • the first subcarrier interval is determined according to a first frequency band, and the first frequency band is a frequency band used by a system corresponding to the network device to provide services.
  • the first subcarrier spacing is the maximum subcarrier spacing supported by the first frequency band.
  • the first subcarrier spacing is the minimum subcarrier spacing supported by the first frequency band.
  • the first subcarrier spacing supported by the system corresponding to the network device on the first frequency band includes ⁇ 15kHz, 30kHz ⁇ , and the first subcarrier spacing is the maximum subcarrier spacing supported by the first frequency band, then the first subcarrier spacing is 30kHz .
  • the first subcarrier spacing supported by the system corresponding to the network device on the first frequency band includes ⁇ 60kHz, 120kHz ⁇ , and the first subcarrier spacing is the maximum subcarrier spacing supported by the first frequency band, then the first subcarrier spacing is 120kHz.
  • the first subcarrier spacing supported by the system corresponding to the network device on the first frequency band includes ⁇ 15kHz, 30kHz, 60kHz, 120kHz ⁇ , and the first subcarrier spacing is the maximum subcarrier spacing supported by the first frequency band, then the first The subcarrier spacing is 120kHz.
  • the first subcarrier spacing is associated with a first BWP.
  • the first subcarrier spacing is determined according to the first BWP.
  • the first BWP is an initial downlink BWP.
  • the first subcarrier spacing is a subcarrier spacing corresponding to downlink transmission on the initial downlink BWP.
  • the downlink transmission may be any downlink channel or signal transmission except a synchronization signal block (Synchronization Signal/physical broadcast channel Block, SS/PBCH block or SSB).
  • a synchronization signal block Synchronization Signal/physical broadcast channel Block, SS/PBCH block or SSB
  • the downlink transmission may include at least one of the following:
  • PDSCH Physical Downlink Shared Channel
  • PDCCH Physical Downlink Control Channel
  • CSI-RS Channel State Information Reference Signal
  • the first subcarrier interval corresponding to the PDSCH transmission carrying system information on the initial downlink BWP is 30 kHz.
  • the first BWP is an initial uplink BWP.
  • the first subcarrier spacing is the subcarrier spacing corresponding to the uplink transmission on the initial uplink BWP.
  • the uplink transmission may be any uplink channel or signal transmission.
  • the uplink transmission may include at least one of the following:
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • PRACH Physical Random Access Channel
  • SRS Sounding Reference Signal
  • the first subcarrier spacing is 15 kHz.
  • the first subcarrier spacing is determined according to a subcarrier spacing corresponding to SSB transmission. For example, if the subcarrier spacing corresponding to SSB transmission is 30 kHz, then the first subcarrier spacing is 30 kHz.
  • the first subcarrier spacing is determined according to the subcarrier spacing corresponding to the first uplink transmission after the terminal device receives the RAR. For example, if the subcarrier interval corresponding to the first uplink transmission after the terminal device receives the RAR is 15 kHz, then the first subcarrier interval is 15 kHz.
  • the first subcarrier spacing is determined according to the subcarrier spacing corresponding to the timing value in the RAR sent by the network device. For example, if the subcarrier interval corresponding to the timing indication TA value included in the RAR is 15 kHz, then the first subcarrier interval is 15 kHz.
  • the RAR includes: RAR in 4-step random access, one of fallback RAR and successful RAR in 2-step random access.
  • the first subcarrier interval is associated with a system corresponding to the network device.
  • the first subcarrier interval is 15 kHz.
  • the system corresponding to the network device is the NR system
  • the first frequency band is FR1
  • the interval between the first subcarriers is 30kHz; or if the first frequency band is FR2, the first subcarrier interval The interval is 120kHz.
  • the first subcarrier spacing is predefined, or configured by the network device.
  • the first subcarrier spacing is configured through at least one of a system message and an RRC message.
  • the first information is sent through a dedicated RRC message of the terminal device.
  • the first subcarrier spacing is the subcarrier spacing of the uplink activated BWP of the terminal device.
  • the terminal device has one uplink activated BWP, and the first subcarrier interval may be the subcarrier interval of the one uplink activated BWP.
  • the terminal device has multiple uplink active BWPs, and the first subcarrier spacing is the largest subcarrier spacing or the smallest subcarrier spacing among the subcarrier spacings corresponding to the multiple uplink active BWPs .
  • the uplink active BWP of the terminal device is switched, and the first subcarrier spacing is determined according to the subcarrier spacing of the switched uplink active BWP. For example, if the terminal device switches the uplink active BWP before receiving the TA command and applying the timing value corresponding to the TA command to adjust the TA, the first subcarrier interval is the switched (or new) uplink active BWP Subcarrier spacing of BWP.
  • P is 16 ⁇ 64/2 ⁇ 1 , that is, the unit of the first timing value is 16 ⁇ 64/2 ⁇ 1 T c .
  • the unit of the first timing value is 16 ⁇ 64 ⁇ T c /2 ⁇ 1 , where ⁇ 1 represents the subcarrier spacing configuration corresponding to the first subcarrier spacing, that is, the first subcarrier spacing is 2 ⁇ 1 ⁇ 15kHz .
  • ⁇ 1 is 1, which means that the first subcarrier interval is 30 kHz, and the unit of the first timing value is 512 ⁇ T c .
  • ⁇ 1 is 0, which means that the first subcarrier interval is 15 kHz, and the unit of the first timing value is 1024 ⁇ T c .
  • the unit of the first timing value is one of time slot, subframe, millisecond and nanosecond.
  • the first timing value is used to determine the timing value of the feeder link of the terminal device, or the first timing value includes the timing value of the feeder link of the terminal device.
  • the unit of the first timing value is 16 ⁇ 64 ⁇ T c /2 ⁇ 1 , that is, the unit of the first timing value is 16 ⁇ 64/2 ⁇ 1 T c
  • the S220 may specifically include:
  • the terminal device determines the first timing value according to the following formula:
  • N TA common corresponds to the first timing value
  • ⁇ 1 indicates the subcarrier spacing configuration corresponding to the first subcarrier spacing
  • T A1 indicates the first timing indication indicated by the first information.
  • N TA, common and T c represent the first timing value.
  • the N TA,common corresponding to the first timing value, the N TA,UE-specific corresponding to the second timing value, and the N TA corresponding to the third timing value are all expressed in Tc as the unit
  • the first timing value, the second timing value, and the third timing value can also be represented by actual timing values
  • N TA_new N TA_old +(T A3 - 31) ⁇ 16 ⁇ 64 ⁇ T c /2 ⁇ 3
  • T A1 is the first timing indication
  • T A2 is the second timing indication
  • T A3 is the third timing indication
  • the application for the first timing value the units and expressions of the second timing value and the third timing value
  • the timing values in the embodiments of this application are expressed in units of Tc.
  • the first timing value N TA,common represents N TA,common Tc
  • the second timing value N TA,UE-specific represents N TA,UE -specific Tc
  • the third timing value represents N TA Tc.
  • it can also be replaced by other units, only need to adjust the corresponding formula, which is not limited in this application.
  • the S230 may include:
  • the terminal device determines the timing information of the first uplink transmission according to the first timing value and the second timing value, wherein the second timing value is determined by the terminal device according to a second subcarrier interval.
  • the second timing value is a timing value estimated by the terminal device itself.
  • the second timing value is used to determine the timing value of the service link of the terminal device, or the second timing value includes the timing value of the service link of the terminal device.
  • a unit of the second timing value is 16 ⁇ 64 ⁇ T c /2 ⁇ 2 , where ⁇ 2 represents a subcarrier spacing configuration corresponding to the second subcarrier spacing.
  • the first uplink transmission includes PRACH transmission or message A (MsgA) transmission
  • the MsgA is the first message in the two-step random access.
  • the MsgA is the first message in contention-based two-step random access.
  • the terminal device is a terminal device in an idle state or an inactive state.
  • the terminal device in the non-connected state can determine the first timing value according to the first subcarrier interval and the first information indicated by the network device, and the second timing value determined by the terminal device according to the second subcarrier interval.
  • the timing value determines the timing information of the first uplink transmission, so that the terminal device can perform TA adjustment based on the timing information before performing the first uplink transmission, which is beneficial to ensure the timing accuracy of the initial transmission and the subsequent slow timing adjustment value Both meet the indicators for uplink transmission requirements.
  • the second subcarrier spacing is determined according to at least one of the following:
  • the first subcarrier spacing is the first subcarrier spacing.
  • the terminal device when the second subcarrier spacing is based on the subcarrier spacing corresponding to the first frequency band, the subcarrier spacing corresponding to the first bandwidth part BWP, and the subcarrier spacing corresponding to SSB transmission, the terminal device The subcarrier interval corresponding to the first uplink transmission after receiving the random access response RAR, the subcarrier interval corresponding to the timing value indicated by the RAR, when the system corresponding to the network device determines, the second subcarrier interval
  • the method for determining the first subcarrier spacing can refer to the method for determining the first subcarrier spacing mentioned above, and for the sake of brevity, details are not repeated here.
  • the terminal device using the method for determining the second subcarrier spacing is a terminal device in an idle state or an inactive state.
  • the terminal device is a terminal device in a connected state
  • the second subcarrier interval is a subcarrier interval of an uplink activated BWP of the terminal device.
  • the implementation manner that the second subcarrier spacing is the subcarrier spacing of the uplink activated BWP of the terminal device can refer to the foregoing description that the first subcarrier spacing is the subcarrier spacing of the uplink activated BWP of the terminal device
  • the implementation method will not be repeated here.
  • the second subcarrier spacing is the same as the first subcarrier spacing.
  • the timing units corresponding to the first timing value and the second timing value are the same.
  • both the first timing value and the second timing value are quantized values of a specific timing unit.
  • the first timing value is rounded according to the timing unit corresponding to the first target subcarrier interval, for example, rounded up, rounded up, or rounded down.
  • the second timing value is rounded according to the timing unit corresponding to the first target subcarrier interval, for example, rounded up, rounded up, or rounded down.
  • the first subcarrier interval is 15kHz
  • the second subcarrier interval is 30kHz
  • the first target If the subcarrier interval is 15kHz, the first timing value and the second timing value must be quantized to 1024Tc as the timing unit.
  • the second timing value is 9 512Tc
  • the second timing value is rounded and rounded according to the timing unit corresponding to 15kHz to obtain 5 1024Tc.
  • the first target subcarrier spacing is the maximum value of the first subcarrier spacing and the second subcarrier spacing.
  • the first target subcarrier spacing is the minimum value of the first subcarrier spacing and the second subcarrier spacing.
  • the first target subcarrier spacing is the subcarrier spacing of the uplink active BWP of the terminal device.
  • the first target subcarrier spacing may be the subcarrier spacing of the one uplink activated BWP.
  • the terminal device has multiple uplink active BWPs, and the first target subcarrier spacing is the largest subcarrier spacing or the smallest subcarrier spacing among the subcarrier spacings corresponding to the multiple uplink active BWPs interval.
  • the terminal device determines the timing information of the first uplink transmission according to the first timing value and the second timing value, including:
  • T TA (N TA,UE-specific +N TA,offset +N TA,common ) ⁇ Tc
  • T TA is the timing information of the first uplink transmission
  • N TA,UE-specific corresponds to the second timing value estimated by the terminal equipment itself
  • N TA,common corresponds to the first timing value
  • N TA,offset is the timing advance offset
  • the N TA,offset is provided by the network device to the terminal device. If the network device does not provide it, the N TA,offset is 0.
  • the S230 may include:
  • the terminal device determines the timing information of the first uplink transmission according to the first timing value, the second timing value and the third timing value, where the second timing value is determined by the terminal device according to the second The subcarrier interval is determined, and the third timing value is determined by the terminal device according to the third subcarrier interval and the second information sent by the network device.
  • the second timing value is a timing value estimated by the terminal device itself.
  • the second timing value is used to determine the timing value of the service link of the terminal device, or the second timing value includes the timing value of the service link of the terminal device.
  • the unit of the second timing value is 16 ⁇ 64 ⁇ T c /2 ⁇ 2 , that is, the unit of the second timing value is 16 ⁇ 64/2 ⁇ 2 T c , wherein ⁇ 2 represents the first The subcarrier spacing configuration corresponding to the two subcarrier spacing.
  • the second subcarrier spacing is determined according to at least one of the following:
  • the third subcarrier spacing is the third subcarrier spacing.
  • the terminal device when the second subcarrier spacing is based on the subcarrier spacing corresponding to the first frequency band, the subcarrier spacing corresponding to the first bandwidth part BWP, and the subcarrier spacing corresponding to SSB transmission, the terminal device The subcarrier interval corresponding to the first uplink transmission after receiving the random access response RAR, the subcarrier interval corresponding to the timing value indicated by the RAR, when the system corresponding to the network device determines, the second subcarrier interval
  • the method for determining the first subcarrier spacing can refer to the method for determining the first subcarrier spacing mentioned above, and for the sake of brevity, details are not repeated here.
  • the terminal device using the method for determining the second subcarrier spacing is a terminal device in an idle state or an inactive state.
  • the terminal device is a terminal device in a connected state
  • the second subcarrier interval is a subcarrier interval of an uplink activated BWP of the terminal device.
  • the implementation manner that the second subcarrier spacing is the subcarrier spacing of the uplink activated BWP of the terminal device can refer to the foregoing description that the first subcarrier spacing is the subcarrier spacing of the uplink activated BWP of the terminal device
  • the implementation method will not be repeated here.
  • the second subcarrier spacing is determined according to the first subcarrier spacing and the third subcarrier spacing.
  • the second subcarrier spacing is the larger value of the first subcarrier spacing and the third subcarrier spacing.
  • the second subcarrier spacing is the smaller value of the first subcarrier spacing and the third subcarrier spacing.
  • the first subcarrier spacing and the third subcarrier spacing are the same or different. For example, for a terminal device in a connected state, the first subcarrier spacing and the third subcarrier spacing may be the same; for a terminal device in an idle state or an inactive state, the first subcarrier spacing and the third subcarrier spacing may be the same.
  • the subcarrier spacing can be different.
  • timing units corresponding to the first timing value, the second timing value and the third timing value are the same.
  • the first timing value, the second timing value and the third timing value are quantized values of a specific timing unit.
  • the first timing value is rounded according to the timing unit corresponding to the second target subcarrier interval, for example, rounded up, rounded up, or rounded down.
  • the second timing value is rounded according to the timing unit corresponding to the second target subcarrier interval, for example, rounded up, rounded up, or rounded down.
  • the third timing value is rounded according to the timing unit corresponding to the second target subcarrier interval, for example, rounded up, rounded up, or rounded down.
  • the first subcarrier interval is 15kHz
  • the second subcarrier interval is 30kHz
  • the second subcarrier The interval is 15kHz
  • the second target subcarrier interval is 15kHz
  • the second timing value is 9 512Tc
  • the second timing value is rounded and rounded according to the timing unit corresponding to 15kHz to obtain 5 1024Tc.
  • the second target subcarrier spacing is the maximum value of the first subcarrier spacing, the second subcarrier spacing and the third subcarrier spacing.
  • the second target subcarrier spacing is the minimum value among the first subcarrier spacing, the second subcarrier spacing and the third subcarrier spacing.
  • the second target subcarrier spacing is the subcarrier spacing of the uplink active BWP of the terminal device.
  • the first target subcarrier spacing may be the subcarrier spacing of the one uplink activated BWP.
  • the terminal device has multiple uplink active BWPs, and the first target subcarrier spacing is the largest subcarrier spacing or the smallest subcarrier spacing among the subcarrier spacings corresponding to the multiple uplink active BWPs interval.
  • the second information is sent through a RAR message.
  • the third subcarrier interval may be the subcarrier interval corresponding to the first uplink transmission after the RAR.
  • the RAR message includes a second timing indication T A2 , and the second timing indication T A2 is used to determine the third timing value N TA .
  • the unit of the third timing value is 16 ⁇ 64 ⁇ T c /2 ⁇ 3 , that is, the unit of the third timing value may be 16 ⁇ 64/2 ⁇ 3 T c , where ⁇ 3 represents the third subcarrier interval The corresponding subcarrier spacing configuration.
  • N TA and T c represent the third timing value.
  • the terminal device determines the timing information of the first uplink transmission according to the first timing value, the second timing value, and the third timing value, including:
  • T TA (N TA +N TA,UE-specific +N TA,offset +N TA,common )*Tc
  • T TA is the timing information of the first uplink transmission
  • N TA, UE-specific corresponds to the second timing value estimated by the terminal device itself
  • N TA corresponds to the third timing value determined according to the RAR message of the network device
  • N TA, common corresponds to the first timing value
  • N TA,offset is a timing advance offset
  • the N TA,offset may be provided by the network device to the terminal device, if not provided by the network device, N TA,offset is 0.
  • the first uplink transmission includes the PUSCH scheduled by the RAR uplink authorization, the PUSCH scheduled by the fallback RAR uplink authorization and the successful RAR corresponding to the hybrid automatic request retransmission-response (Hybrid Automatic Repeat request) Acknowledgment, HARQ-ACK) information PUCCH at least one.
  • Hybrid Automatic Repeat request Hybrid Automatic Repeat request
  • the terminal device is a terminal device in an idle state or an inactive state.
  • the terminal device in the non-connected state can determine the first timing value according to the first subcarrier interval and the first information indicated by the network device, the second timing value determined by the terminal device itself according to the second subcarrier interval, and the RAR of the network device
  • the third timing value determined by the second information in the message determines the timing information of the first uplink transmission, so that the terminal device can perform TA adjustment based on the timing information before performing the first uplink transmission, which is beneficial to ensure the initial transmission
  • the timing accuracy and the subsequent slow timing adjustment value all meet the indicators required for uplink transmission.
  • the second information is sent through a medium access control MAC control element CE
  • the third subcarrier interval is the subcarrier interval of the uplink active BWP of the terminal device.
  • the MAC CE includes a third timing indication T A3 , and the third timing indication T A3 is used to determine the third timing value.
  • the unit of the third timing value is 16 ⁇ 64 ⁇ T c /2 ⁇ 3 , that is, the unit of the third timing value may be 16 ⁇ 64/2 ⁇ 3 T c , where ⁇ 3 represents the third subcarrier interval The corresponding subcarrier spacing configuration.
  • the third timing value corresponds to N TA_new . That is, N TA_new T c represent the third timing value.
  • the terminal device determines the timing information of the first uplink transmission according to the first timing value, the second timing value, and the third timing value, including:
  • T TA (N TA +N TA,UE-specific +N TA,offset +N TA,common )*Tc
  • T TA is the timing information of the first uplink transmission
  • N TA, UE-specific corresponds to the second timing value estimated by the terminal device itself
  • N TA corresponds to the third timing value determined according to the MAC CE of the network device
  • N TA, common corresponds to the first timing value
  • N TA,offset is a timing advance offset.
  • the N TA,offset can be provided by the network device to the terminal device. If the network device does not provide it, N TA,offset is 0.
  • the terminal device has multiple uplink activated BWPs, and the third subcarrier spacing is the largest subcarrier spacing among the subcarrier spacings corresponding to the multiple uplink activated BWPs; or,
  • the uplink active BWP of the terminal device is switched, and the third subcarrier interval is the subcarrier interval of the uplink active BWP after switching.
  • the first uplink transmission includes at least one kind of uplink transmission except the following uplink transmissions:
  • Msg1 is the first message in the four-step random access
  • MsgA is the first message in the two-step random access.
  • the terminal device is a terminal device in a connected state.
  • the first timing value is 0. For example, in the foregoing formula for determining T TA , if the network device does not send the first information to the terminal device, the terminal device determines that N TA,common is 0.
  • the first information may be the aforementioned first timing indication, second timing indication or third timing indication.
  • the first information is carried in a system message or a public RRC message.
  • the wireless communication method according to the embodiment of the present application may include some or all of the following steps:
  • the terminal equipment is provided with a timing advance offset value N TA,offset , wherein the N TA,offset value is determined according to the frequency domain range of the cell and the multiplexing mode of uplink transmission. For example, it is determined according to the network deployment frequency band and the coexistence of LTE or NR.
  • the terminal device receives the first information sent by the network device, and determines the first timing value N TA,common (that is, the common timing value) according to the first information and the first subcarrier spacing.
  • N TA common
  • the terminal device estimates and obtains the second timing value N TA,UE-specific by itself according to the second subcarrier spacing.
  • N TA the second timing value
  • the third subcarrier interval may be, for example, the subcarrier interval of the terminal device's first uplink transmission after receiving the RAR.
  • T TA (N TA +N TA,UE-specific +N TA,offset +N TA,common ) ⁇ Tc
  • the terminal device receives a timing advance command (Timing Advance Command, TAC) MAC CE
  • the TAC MAC CE includes a TA command
  • the TA command includes a third timing indication T A3
  • the value of T A3 may be, for example, 0, 1, 2, . . . , 63, and ⁇ 3 represents a subcarrier spacing configuration corresponding to the third subcarrier spacing.
  • the third subcarrier interval may be, for example, the subcarrier interval of the uplink activated BWP; or, if the terminal device has multiple uplink activated BWPs, the third subcarrier interval may be the subcarrier interval corresponding to the multiple uplink activated BWPs.
  • T TA (N TA +N TA,UE-specific +N TA,offset +N TA,common ) ⁇ Tc, and performs the second uplink transmission according to the determined timing information.
  • - Uplink transmission for example, other uplink transmissions except Msg1, MsgA, PUSCH scheduled by RAR uplink grant, PUSCH scheduled by fallback RAR uplink grant, and PUCCH carrying HARQ-ACK information corresponding to successful RAR).
  • the first information is carried in a dedicated RRC message of the terminal device.
  • the wireless communication method according to the embodiment of the present application may include some or all of the following steps:
  • the terminal equipment is provided with a timing advance offset value N TA,offset , wherein the N TA,offset value is determined according to the frequency domain range of the cell and the multiplexing mode of uplink transmission. For example, it is determined according to the network deployment frequency band and the coexistence of LTE or NR.
  • N TA,common TA1 ⁇ 16 ⁇ 64 /2 ⁇ 1 , where ⁇ 1 represents the subcarrier spacing configuration corresponding to the first subcarrier spacing, and T A1 represents the value indicated by the first information.
  • the terminal device estimates and obtains the second timing value N TA,UE-specific by itself according to the second subcarrier spacing.
  • N TA the second timing value
  • the value of T A3 may be, for example, 0, 1, 2, . . . , 63, and ⁇ 1 represents the subcarrier spacing configuration corresponding to the first subcarrier spacing.
  • the first subcarrier spacing may be the subcarrier spacing of the uplink activated BWP; or if the terminal device has multiple uplink activated BWPs, it is the largest subcarrier spacing among the subcarrier spacings corresponding to the multiple uplink activated BWPs; or If the terminal device performs an uplink active BWP switch between receiving the TA command and applying the corresponding timing information to adjust, the subcarrier interval of the new uplink active BWP is used.
  • Uplink transmission for example, other uplink transmissions except Msg1, MsgA, PUSCH scheduled by RAR uplink grant, PUSCH scheduled by fallback RAR uplink grant, and PUCCH carrying HARQ-ACK information corresponding to successful RAR).
  • the terminal device in the non-connected state can determine the first timing value determined according to the first subcarrier interval and the first information indicated by the network device, and the second timing value determined by the terminal device according to the second subcarrier interval.
  • the timing information of the first uplink transmission so that the terminal device can perform TA adjustment based on the timing information before performing the first uplink transmission.
  • the terminal device in the non-connected state may determine the first timing value based on the first subcarrier spacing and the first information indicated by the network device, the second timing value determined by the terminal device itself according to the second subcarrier spacing, and the The third timing value determined by the second information in the RAR message indicates determining the timing information of the first uplink transmission, so that the terminal device can perform TA adjustment based on the timing information before performing the first uplink transmission.
  • the terminal device in the connected state can determine the first timing value based on the first subcarrier interval and the first information indicated by the network device, the second timing value determined by the terminal device itself according to the second subcarrier interval, and the MAC address of the network device.
  • the third timing value determined by the second information in the CE indicates to determine the timing information of the first uplink transmission, so that the terminal device can perform TA adjustment based on the timing information before performing the first uplink transmission. Based on the above TA adjustment, it is beneficial to ensure that both the timing accuracy of the initial transmission and the subsequent slow timing adjustment value meet the index required by the uplink transmission.
  • Fig. 6 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes:
  • a processing unit 410 configured to determine a first timing value according to first information sent by the network device, where the first information is used to indicate the first timing value according to a first subcarrier spacing;
  • the timing information of the first uplink transmission is determined according to the first timing value.
  • the first information is sent through a system message or a public radio resource control RRC message.
  • the first subcarrier spacing is determined according to at least one of the following:
  • the system corresponding to the network device.
  • the first frequency band is a frequency band used by a system corresponding to the network device to provide services.
  • the first subcarrier spacing is a maximum subcarrier spacing supported by the first frequency band, or a minimum subcarrier spacing supported by the first frequency band.
  • the first BWP is an initial uplink BWP, or an initial downlink BWP.
  • the first subcarrier spacing is predefined, or configured by the network device.
  • the first subcarrier spacing is configured through at least one of a system message and an RRC message.
  • the first information is sent through a dedicated RRC message of the terminal device.
  • the first subcarrier spacing is a subcarrier spacing of an uplink activated BWP of the terminal device.
  • the terminal device has multiple uplink activated BWPs, and the first subcarrier spacing is the largest subcarrier spacing among the subcarrier spacings corresponding to the multiple uplink activated BWPs; or,
  • the uplink active BWP of the terminal device is switched, and the first subcarrier interval is the subcarrier interval of the uplink active BWP after switching.
  • the unit of the first timing value is 16 ⁇ 64 ⁇ T c /2 ⁇ 1 , where ⁇ 1 represents the subcarrier spacing configuration corresponding to the first subcarrier spacing; or
  • a unit of the first timing value is one of time slot, subframe, millisecond and nanosecond.
  • the unit of the first timing value is 16 ⁇ 64 ⁇ T c /2 ⁇ 1
  • the processing unit 410 is specifically used for:
  • N TA common corresponds to the first timing value
  • ⁇ 1 indicates the subcarrier spacing configuration corresponding to the first subcarrier spacing
  • T A1 indicates the value indicated by the first information.
  • the processing unit 410 is specifically configured to:
  • the terminal device determines the timing information of the first uplink transmission according to the first timing value and the second timing value, wherein the second timing value is determined by the terminal device according to a second subcarrier interval.
  • the second subcarrier spacing is determined according to at least one of the following:
  • the first subcarrier spacing is the first subcarrier spacing.
  • the second timing value is a timing value estimated by the terminal device itself.
  • the first timing value is rounded according to the timing unit corresponding to the first target subcarrier interval; and/or,
  • the second timing value is rounded according to the timing unit corresponding to the first target subcarrier interval.
  • the first target subcarrier spacing is the maximum value of the first subcarrier spacing and the second subcarrier spacing; or,
  • the first target subcarrier spacing is the minimum value of the first subcarrier spacing and the second subcarrier spacing; or,
  • the first target subcarrier spacing is the subcarrier spacing of the uplink active BWP of the terminal device.
  • the first uplink transmission includes physical random access channel PRACH transmission or message A transmission, and the message A is the first message in contention-based two-step random access.
  • the terminal device is a terminal device in an idle state or an inactive state.
  • the processing unit 410 is further configured to:
  • the second information is sent through a RAR message
  • the third subcarrier interval is the subcarrier interval corresponding to the first uplink transmission after the RAR.
  • the first uplink transmission includes the physical uplink shared channel PUSCH scheduled by the RAR uplink grant, the PUSCH scheduled by the fallback RAR uplink grant and the hybrid automatic retransmission request-response HARQ-ACK corresponding to the successful RAR At least one of physical uplink control channels PUCCH for information.
  • the terminal device is a terminal device in an idle state or an inactive state.
  • the second information is sent through a MAC control element CE
  • the third subcarrier spacing is a subcarrier spacing of an uplink activated BWP of the terminal device.
  • the terminal device has multiple uplink activated BWPs, and the third subcarrier spacing is the largest subcarrier spacing among the subcarrier spacings corresponding to the multiple uplink activated BWPs; or,
  • the uplink active BWP of the terminal device is switched, and the third subcarrier interval is the subcarrier interval of the uplink active BWP after switching.
  • the first uplink transmission includes at least one type of uplink transmission except the following uplink transmissions:
  • message A the PUSCH scheduled by the RAR uplink grant, the PUSCH scheduled by the fallback RAR uplink grant, and the PUCCH carrying the HARQ-ACK information corresponding to the successful RAR.
  • the terminal device is a terminal device in a connected state.
  • the first timing value is rounded according to the timing unit corresponding to the second target subcarrier interval; and/or,
  • the second timing value is rounded according to the timing unit corresponding to the second target subcarrier interval; and/or,
  • the third timing value is rounded according to the timing unit corresponding to the second target subcarrier spacing.
  • the second target subcarrier spacing is the maximum value among the first subcarrier spacing, the second subcarrier spacing, and the third subcarrier spacing; or,
  • the second target subcarrier spacing is the minimum of the first subcarrier spacing, the second subcarrier spacing and the third subcarrier spacing; or,
  • the second target subcarrier spacing is the subcarrier spacing of the uplink active BWP of the terminal device.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 400 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are to realize the method shown in FIG. 5
  • the corresponding process of the terminal device in 200 will not be repeated here.
  • Fig. 7 shows a schematic block diagram of a network device 500 according to an embodiment of the present application.
  • the network device 500 includes:
  • the communication unit 510 is configured to send first information to the terminal device, where the first information is used to indicate a first timing value according to the first subcarrier spacing, and the first timing value is used to determine the timing of the first uplink transmission information.
  • the first information is sent through a system message or a public radio resource control RRC message.
  • the first subcarrier spacing is determined according to at least one of the following:
  • the system corresponding to the network device.
  • the first frequency band is a frequency band used by a system corresponding to the network device to provide services.
  • the first subcarrier spacing is a maximum subcarrier spacing supported by the first frequency band, or a minimum subcarrier spacing supported by the first frequency band.
  • the first BWP is an initial uplink BWP, or an initial downlink BWP.
  • the first subcarrier spacing is predefined, or configured by the network device.
  • the first subcarrier spacing is configured through at least one of a system message and an RRC message.
  • the first information is sent through a dedicated RRC message of the terminal device.
  • the first subcarrier spacing is a subcarrier spacing of an uplink activated BWP of the terminal device.
  • the terminal device has multiple uplink activated BWPs, and the first subcarrier spacing is the largest subcarrier spacing among the subcarrier spacings corresponding to the multiple uplink activated BWPs; or,
  • the uplink active BWP of the terminal device is switched, and the first subcarrier interval is the subcarrier interval of the uplink active BWP after switching.
  • the unit of the first timing value is 16 ⁇ 64 ⁇ T c /2 ⁇ 1 , where ⁇ 1 represents the subcarrier spacing configuration corresponding to the first subcarrier spacing; or
  • a unit of the first timing value is one of time slot, subframe, millisecond and nanosecond.
  • the unit of the first timing value is 16 ⁇ 64 ⁇ T c /2 ⁇ 1
  • the terminal device determines the first timing value according to the first information sent by the network device, including:
  • the terminal device determines the first timing value according to the following formula:
  • N TA common corresponds to the first timing value
  • ⁇ 1 indicates the subcarrier spacing configuration corresponding to the first subcarrier spacing
  • T A1 indicates the value indicated by the first information.
  • the first uplink transmission includes physical random access channel PRACH transmission or message A transmission, and the message A is the first message in contention-based two-step random access.
  • the first uplink transmission includes the physical uplink shared channel PUSCH scheduled by the RAR uplink grant, the PUSCH scheduled by the fallback RAR uplink grant and the hybrid automatic retransmission request-response HARQ-ACK corresponding to the successful RAR At least one of physical uplink control channels PUCCH for information.
  • the terminal device is a terminal device in an idle state or an inactive state.
  • the first uplink transmission includes at least one type of uplink transmission except the following uplink transmissions:
  • message A the PUSCH scheduled by the RAR uplink grant, the PUSCH scheduled by the fallback RAR uplink grant, and the PUCCH carrying the HARQ-ACK information corresponding to the successful RAR.
  • the terminal device is a terminal device in a connected state.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the network device 500 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 500 are for realizing the method shown in FIG. 5
  • the corresponding processes of the network devices in 200 will not be repeated here.
  • FIG. 8 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • the communication device 600 shown in FIG. 8 includes a processor 610, and the processor 610 can invoke and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620 .
  • the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
  • the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 600 may specifically be the mobile terminal/terminal device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, for the sake of brevity , which will not be repeated here.
  • FIG. 9 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 9 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
  • the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may also include an input interface 730 .
  • the processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.
  • the chip 700 may also include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • Fig. 10 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 10 , the communication system 900 includes a terminal device 910 and a network device 920 .
  • the terminal device 910 can be used to realize the corresponding functions realized by the terminal device in the above method
  • the network device 920 can be used to realize the corresponding functions realized by the network device in the above method.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • 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 Direct Memory Bus Random Access Memory
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a 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 (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application , for the sake of brevity, it is not repeated here.
  • the embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the Let me repeat for the sake of brevity, the Let me repeat.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, For the sake of brevity, details are not repeated here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program executes each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device
  • the corresponding process will not be repeated here.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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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 demande concernent un procédé de communication sans fil, un dispositif terminal et un dispositif de réseau. Le procédé comprend les étapes suivantes : un dispositif terminal détermine une première valeur de synchronisation en fonction de premières informations envoyées par un dispositif de réseau, les premières informations étant utilisées pour indiquer la première valeur de synchronisation en fonction d'un premier espacement de sous-porteuse ; et le dispositif terminal détermine des informations de synchronisation pour une première transmission de liaison montante en fonction de la première valeur de synchronisation.
PCT/CN2021/108661 2021-05-14 2021-07-27 Procédé de communication sans fil, dispositif terminal et dispositif de réseau WO2022236965A1 (fr)

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CN110351027A (zh) * 2018-04-04 2019-10-18 华为技术有限公司 一种反馈信息的传输方法和装置
CN111431681A (zh) * 2019-01-10 2020-07-17 北京三星通信技术研究有限公司 传输harq-ack信息的方法、装置、电子设备及存储介质
US20210021397A1 (en) * 2019-07-15 2021-01-21 Samsung Electronics Co., Ltd. Method and apparatus for efficiently operating dormant bandwidth part in a next generation mobile communication system

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WO2017023352A1 (fr) * 2015-08-06 2017-02-09 Intel IP Corporation Réalisation de communications critiques de mission au niveau d'un équipement d'utilisateur (ue)
CN110351027A (zh) * 2018-04-04 2019-10-18 华为技术有限公司 一种反馈信息的传输方法和装置
CN111431681A (zh) * 2019-01-10 2020-07-17 北京三星通信技术研究有限公司 传输harq-ack信息的方法、装置、电子设备及存储介质
US20210021397A1 (en) * 2019-07-15 2021-01-21 Samsung Electronics Co., Ltd. Method and apparatus for efficiently operating dormant bandwidth part in a next generation mobile communication system

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