WO2022011682A1 - 无线通信方法、终端设备和网络设备 - Google Patents

无线通信方法、终端设备和网络设备 Download PDF

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Publication number
WO2022011682A1
WO2022011682A1 PCT/CN2020/102692 CN2020102692W WO2022011682A1 WO 2022011682 A1 WO2022011682 A1 WO 2022011682A1 CN 2020102692 W CN2020102692 W CN 2020102692W WO 2022011682 A1 WO2022011682 A1 WO 2022011682A1
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WIPO (PCT)
Prior art keywords
terminal device
srs
timer
cell
network device
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PCT/CN2020/102692
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English (en)
French (fr)
Inventor
尤心
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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 EP20945188.9A priority Critical patent/EP4161169A4/en
Priority to CN202080099645.9A priority patent/CN115380579A/zh
Priority to CN202410348037.7A priority patent/CN118042587A/zh
Priority to PCT/CN2020/102692 priority patent/WO2022011682A1/zh
Publication of WO2022011682A1 publication Critical patent/WO2022011682A1/zh
Priority to US18/081,097 priority patent/US20230108216A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/004Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • H04W74/0841Random access procedures, e.g. with 4-step access with collision treatment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/30Connection release

Definitions

  • the embodiments of the present application relate to the field of communication, and more particularly, to a wireless communication method, terminal device, and network device.
  • a New Radio New Radio, NR
  • SRS Sounding Reference Signal
  • the terminal device needs to send the SRS in the idle state or the deactivated state. How to realize the SRS transmission in the idle state or the deactivated state is an urgent problem to be solved.
  • Embodiments of the present application provide a wireless communication method, a terminal device, and a network device, where the terminal device can perform uplink synchronization in an idle state or a deactivated state, thereby implementing SRS transmission.
  • a wireless communication method comprising:
  • the terminal device determines the first TA
  • the terminal device sends the SRS according to the first TA;
  • the terminal device is in an idle state, or the terminal device is in a deactivated state.
  • a wireless communication method comprising:
  • the network device receives the SRS sent by the terminal device according to the first TA, where the terminal device is in an idle state, or the terminal device is in a deactivated state.
  • a terminal device for executing the method in the above-mentioned first aspect.
  • the terminal device includes functional modules for executing the method in the first aspect.
  • a network device for executing the method in the second aspect.
  • the network device includes functional modules for executing the method in the second aspect above.
  • 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 first aspect.
  • 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 second aspect.
  • an apparatus for implementing the method in any one of the above-mentioned first to second aspects.
  • the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device on which the apparatus is installed executes the method in any one of the first to second aspects above.
  • a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method in any one of the first to second aspects above.
  • a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method in any one of the first to second aspects above.
  • a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-mentioned first to second aspects.
  • the terminal device can send the SRS according to the first TA in the idle state or the deactivated state. That is, the terminal device can realize uplink synchronization based on the first TA in the idle state or the deactivated state, thereby ensuring that the terminal device can send the SRS in the idle state or the deactivated state.
  • FIG. 1 is a schematic diagram of a communication system architecture to which an embodiment of the present application is applied.
  • FIG. 2 is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.
  • FIG. 3 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • FIG. 4 is a schematic block diagram of a network device provided according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 6 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber 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 subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device can be a station (STATION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end 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 airplanes, 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, and 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, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • 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, etc.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, 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 device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellites may be low earth orbit (LEO) satellites, medium earth orbit (MEO) satellites, geostationary earth orbit (GEO) satellites, High Elliptical Orbit (HEO) satellites ) satellite etc.
  • the network device may also be a base station set in a location such as land or water.
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
  • Pico cell Femto 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 communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • GNSS Global Navigation Satellite System
  • radio technologies such as LTE networks, which provide multiple options to locate users, wireless networks, ground beacon systems, etc.
  • IMUs Inertial Measurement Units
  • sensors e.g. tracking user location based on accelerometers, gyroscopes, magnetic force instrument or use the barometric pressure sensor for vertical positioning.
  • the 3rd Generation Partnership Project (3GPP) NR's enhanced positioning capabilities bring additional gains.
  • the operation of low and high frequency bands (i.e. FR1 and FR2) and the use of a large number of antenna arrays provide additional degrees of freedom, greatly improving positioning accuracy.
  • Positioning based on Time Difference of Arrival (Observed Time Difference of Arrival, OTDOA), Uplink Time Difference of Arrival (UTDOA), Cell-ID or Enhanced Cell-ID (E-Cell-ID) technology that utilizes a large bandwidth (low and high frequency bands) for time measurement brings better performance for user positioning.
  • massive antenna systems such as massive multiple-input multiple-output (massive MIMO) systems, more accurate user locations are achieved by combining temporal measurements with the spatial and angular domains of the propagation channel.
  • Sounding Reference Signal is one of the main reference signals used for positioning. Based on the SRS sent by the terminal device, the network device can measure the time of arrival, signal strength, and inclination of arrival to determine the location information of the terminal device. In addition, the Sounding Reference Signal (SRS) is also one of the main reference signals for uplink measurement, and the terminal device can perform uplink beam management based on the SRS signal, so as to determine the analog beam used for uplink transmission.
  • SRS Sounding Reference Signal
  • the activation and deactivation of the SRS can be realized based on the Media Access Control Control Element (MAC CE) signaling, which is used to activate/deactivate the SRS for positioning and its corresponding signaling. the spatial relationship.
  • MAC CE Media Access Control Control Element
  • the configuration and transmission of the SRS are performed by the terminal device in the connected state, because the terminal device is synchronized with the network side in the connected state. Then, when the terminal device enters an idle (IDLE) state or an inactive (inactive) state, because it is not synchronized with the network, it cannot receive the network side configuration and send the SRS.
  • IDLE idle
  • inactive inactive
  • the present application proposes a solution for sending SRS, and the terminal device can send the SRS according to the first TA in an idle state or a deactivated state. That is, the terminal device can realize uplink synchronization based on the first TA in the idle state or the deactivated state, thereby ensuring that the terminal device can send the SRS in the idle state or the deactivated state.
  • FIG. 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 2 , the method 200 may include at least part of the following contents:
  • the terminal device determines the first TA
  • the terminal device sends an SRS to the network device according to the first TA, wherein the terminal device is in an idle state, or the terminal device is in a deactivated state;
  • the network device receives the SRS sent by the terminal device according to the first TA.
  • the terminal device in the idle state or the deactivated state can realize uplink synchronization based on the first TA, thereby ensuring that the terminal device can send the SRS in the idle state or the deactivated state.
  • the terminal device may send the SRS in the idle state or the deactivated state, that is, the terminal device does not need to send the SRS after entering the connected state, thereby realizing energy saving of the terminal.
  • the SRS includes at least one of the following:
  • SRS for uplink measurement SRS for positioning.
  • the first TA represents a timing advance between the terminal device and the network device.
  • the first TA represents the timing advance between the reference point in the cell where the terminal equipment resides and the base station.
  • the first TA represents the timing advance between the reference point in the cell where the terminal device resides and the network device.
  • the first TA represents the timing advance between the reference point in the cell where the terminal device resides and the access network device.
  • the reference point is located at the edge of the camping cell, or the reference point is located at the center of the camping cell, or the reference point is the location of the terminal equipment in the camping cell, or the The reference point is a pre-configured or agreed upon location in the camping cell.
  • the camping cell can also be understood as the cell where the terminal device is currently located, or the camping cell can also be understood as the cell before the terminal device enters the idle state/inactive state service area.
  • the first TA may be obtained through the following two solutions of Example 1 and Example 2.
  • Example 1 the terminal device determines the first TA according to the second TA and/or the TA timer.
  • the second TA is the TA before the terminal device leaves the connected state, or the second TA is the TA broadcast by the network device after the terminal device enters the idle state or the deactivated state, or the second TA is a random connection TA obtained during the entry process.
  • the second TA may be the TA newly obtained before the terminal device leaves the connection state.
  • the second TA is the TA obtained in the random access process
  • the second TA can carry, for example, the second piece of information (message 2, Msg 2) in the four-step random access process or In the fourth piece of information (message 4, Msg 4); for example, the second TA can also be carried in the second piece of information (message B, Msg B) in the two-step random access process; for example, the second TA can also be It is carried in the information sent by the network device after the random access is successful.
  • the second TA may also be a TA obtained by adjusting the TA command (command) media access control element (Media Access Control Control Element, MAC CE) sent by the network after the terminal device randomly accesses successfully.
  • command command
  • media access control element Media Access Control Element
  • the terminal device determines the first TA according to the second TA. For example, after acquiring the second TA, the terminal device directly determines the second TA as the first TA. For another example, after acquiring the second TA, the terminal device determines the sum of the second TA and the TA offset value as the first TA, where the TA offset value may be pre-configured or agreed in a protocol, or , the TA offset value is configured by the network device through broadcasting.
  • the terminal device determines the first TA according to the second TA and the TA timer. For example, during the running of the TA timer, the terminal device determines the second TA as the first TA. That is, during the running period of the TA timer, the second TA is the first TA. And when the TA timer expires, the second TA is invalid, and at this time, the terminal device cannot determine the first TA, and cannot follow the SRS sent by the first TA.
  • the start or restart condition of the TA timer includes at least one of the following:
  • the terminal device enters an idle state or a deactivated state
  • the terminal device receives the configuration information of the TA timer
  • the terminal device receives the indication information for updating the configuration of the TA timer
  • the terminal device receives the TA or the TA adjustment value sent by the network device.
  • the stopping condition of the TA timer includes at least one of the following:
  • the terminal device enters the connected state
  • the terminal device initiates a random access procedure
  • the terminal equipment moves from the current cell to another cell
  • the terminal device moves from the current tracking area to another tracking area
  • the terminal equipment moves from the coverage of the current Radio Access Network (RAN) to the coverage of other RANs;
  • RAN Radio Access Network
  • the terminal equipment moves from the current SRS effective area to another SRS effective area.
  • current can be understood as the time or moment when the terminal device determines the first TA.
  • the terminal device receives configuration information, where the configuration information is used to configure the TA timer.
  • the terminal device when the terminal device is in a connected state, the terminal device receives the configuration information sent by the network device.
  • the configuration information is carried in radio resource control (Radio Resource Control, RRC) reconfiguration information, or the configuration information is carried in RRC release information.
  • RRC Radio Resource Control
  • the configuration information may also be carried in system information. That is, the terminal device may receive the configuration information in an idle state or a deactivated state, and in this case, the configuration information may further include the second TA.
  • Example 1 when the TA timer expires, the terminal device initiates a random access procedure, and/or the terminal device stops sending the SRS.
  • the terminal device initiates a random access procedure, the purpose of which may be one or more of the following:
  • Example 2 the terminal device receives a system broadcast message, where the system broadcast message is used to indicate the first TA; and the terminal device determines the first TA according to the system broadcast message.
  • the system broadcast message is a periodic broadcast message. That is, the network device may periodically broadcast the first TA. For example, the network device may determine the location and/or movement track of the terminal device based on the received SRS, and periodically update the first TA based on the determined content.
  • the terminal device after the terminal device leaves the TA effective area, the terminal device re-initiates the random access procedure, wherein the terminal device updates the first TA in the random access procedure.
  • the network device updates the first TA in the random access procedure re-initiated after the terminal device leaves the TA valid area.
  • the TA effective area includes at least one of the following:
  • a specific area in the cell coverage, RAN coverage, Tracking Area, and SRS effective area is a specific area in the cell coverage, RAN coverage, Tracking Area, and SRS effective area.
  • the terminal device determines whether to leave the coverage of the cell according to the physical cell identifier (Physical Cell Identifier, PCI) in the system message.
  • PCI Physical Cell Identifier
  • the terminal device may determine whether to leave the coverage of the cell according to whether the PCI in the system message changes.
  • the terminal device can send the SRS according to the first TA in the idle state or the deactivated state. That is, the terminal device can realize uplink synchronization based on the first TA in the idle state or the deactivated state, thereby ensuring that the terminal device can send the SRS in the idle state or the deactivated state.
  • FIG. 3 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
  • the terminal device 300 includes:
  • a processing unit 310 configured to determine a first timing advance amount TA
  • the communication unit 320 is configured to send a sounding reference signal SRS according to the first TA, wherein the terminal device is in an idle state, or the terminal device is in a deactivated state.
  • processing unit 310 is specifically used for:
  • the first TA is determined according to the second TA and/or the TA timer
  • the second TA is the TA before the terminal device leaves the connected state, or the second TA is the TA broadcast by the network device after the terminal device enters the idle state or the deactivated state, or the second TA is a random connection TA obtained during the entry process.
  • processing unit 310 is specifically used for:
  • the second TA is determined to be the first TA.
  • the start or restart condition of the TA timer includes at least one of the following:
  • the terminal device enters an idle state or a deactivated state
  • the terminal device receives the configuration information of the TA timer
  • the terminal device receives the indication information for updating the configuration of the TA timer
  • the terminal device receives the TA or the TA adjustment value sent by the network device.
  • the stopping condition of the TA timer includes at least one of the following:
  • the terminal device enters the connected state
  • the terminal device initiates a random access procedure
  • the terminal equipment moves from the current cell to another cell
  • the terminal equipment moves from the current tracking area to another tracking area;
  • the terminal equipment moves from the current radio access network RAN coverage to another RAN coverage;
  • the terminal equipment moves from the current SRS effective area to another SRS effective area.
  • the communication unit 320 is further configured to receive configuration information, where the configuration information is used to configure the TA timer.
  • the communication unit 320 is specifically used for:
  • the configuration information is received.
  • the configuration information is carried in the radio resource control RRC reconfiguration information, or the configuration information is carried in the RRC release information.
  • the communication unit 310 is further configured to initiate a random access procedure, and/or the communication unit 320 is further configured to stop sending the SRS.
  • the communication unit 320 is further configured to receive a system broadcast message, where the system broadcast message is used to indicate the first TA;
  • the processing unit 310 is further configured to determine the first TA according to the system broadcast message.
  • the system broadcast message is a periodic broadcast message.
  • the communication unit 320 is further configured to re-initiate the random access procedure, wherein the terminal device updates the first TA in the random access procedure.
  • the TA effective area includes at least one of the following:
  • a specific area among cell coverage, RAN coverage, tracking area, and SRS effective area is a specific area among cell coverage, RAN coverage, tracking area, and SRS effective area.
  • the processing unit 310 is further configured to determine whether to leave the coverage of the cell according to the physical cell identifier PCI in the system message when the effective area of the TA is the coverage of the cell.
  • the first TA represents the timing advance between the reference point in the cell where the terminal device resides and the base station, or the first TA represents the timing advance between the terminal device and the network device.
  • the reference point is located at the edge of the camping cell, or the reference point is located at the center of the camping cell, or the reference point is the location of the terminal equipment in the camping cell, or the The reference point is a pre-configured or agreed upon location in the camping cell.
  • the SRS includes at least one of the following: an SRS for uplink measurement and an SRS for positioning.
  • 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 300 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of the various units in the terminal device 300 are respectively for realizing the method shown in FIG. 2 .
  • the corresponding process of the terminal device in 200 is not repeated here for brevity.
  • FIG. 4 shows a schematic block diagram of a network device 400 according to an embodiment of the present application.
  • the network device 400 includes:
  • the communication unit 410 is configured to receive the sounding reference signal SRS sent by the terminal device according to the first timing advance TA, where the terminal device is in an idle state, or the terminal device is in a deactivated state.
  • the first TA is determined according to the second TA and/or the TA timer
  • the second TA is the TA before the terminal device leaves the connected state, or the second TA is the TA broadcast by the network device after the terminal device enters the idle state or the deactivated state, or the second TA is a random connection TA obtained during the entry process.
  • the second TA is the first TA.
  • the start or restart condition of the TA timer includes at least one of the following:
  • the terminal device enters an idle state or a deactivated state
  • the terminal device receives the configuration information of the TA timer
  • the terminal device receives the indication information for updating the configuration of the TA timer
  • the terminal device receives the TA or the TA adjustment value sent by the network device.
  • the stopping condition of the TA timer includes at least one of the following:
  • the terminal device enters the connected state
  • the terminal device initiates a random access procedure
  • the terminal equipment moves from the current cell to another cell
  • the terminal equipment moves from the current tracking area to another tracking area;
  • the terminal equipment moves from the current radio access network RAN coverage to another RAN coverage;
  • the terminal equipment moves from the current SRS effective area to another SRS effective area.
  • the communication unit 410 is further configured to send configuration information to the terminal device, where the configuration information is used to configure the TA timer.
  • the communication unit 410 is specifically used for:
  • the configuration information is sent to the terminal device.
  • the configuration information is carried in the radio resource control RRC reconfiguration information, or the configuration information is carried in the RRC release information.
  • the communication unit 410 is further configured to send a system broadcast message, where the system broadcast message is used to indicate the first TA.
  • the system broadcast message is a periodic broadcast message.
  • the network device 400 further includes:
  • the processing unit 420 is configured to update the first TA in the random access procedure re-initiated after the terminal device leaves the TA valid area.
  • the TA effective area includes at least one of the following:
  • a specific area among cell coverage, RAN coverage, tracking area, and SRS effective area is a specific area among cell coverage, RAN coverage, tracking area, and SRS effective area.
  • the first TA represents the timing advance between the reference point in the cell where the terminal device resides and the base station, or the first TA represents the timing advance between the terminal device and the network device.
  • the reference point is located at the edge of the camping cell, or the reference point is located at the center of the camping cell, or the reference point is the location of the terminal equipment in the camping cell, or the The reference point is a pre-configured or agreed upon location in the camping cell.
  • the SRS includes at least one of the following: an SRS for uplink measurement and an SRS for positioning.
  • 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 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 network device 400 are respectively for realizing the method shown in FIG. 2 .
  • the corresponding process of the network device in 200 is not repeated here for brevity.
  • FIG. 5 is a schematic structural diagram of a communication device 500 provided by an embodiment of the present application.
  • the communication device 500 shown in FIG. 5 includes a processor 510, and the processor 510 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 500 may further include a memory 520 .
  • the processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application.
  • the memory 520 may be a separate device independent of the processor 510 , or may be integrated in the processor 510 .
  • the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the transceiver 530 may include a transmitter and a receiver.
  • the transceiver 530 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 500 may specifically be a network device in this embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For brevity, details are not repeated here. .
  • the communication device 500 may specifically be the mobile terminal/terminal device of the embodiments of the present application, and the communication device 500 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and will not be repeated here.
  • FIG. 6 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 600 shown in FIG. 6 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the apparatus 600 may further include a memory 620 .
  • the processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.
  • the memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .
  • the apparatus 600 may further include an input interface 630 .
  • the processor 610 may control the input interface 630 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the apparatus 600 may further include an output interface 640 .
  • the processor 610 can control the output interface 640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.
  • the apparatus can be applied to the mobile terminal/terminal equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 7 is a schematic block diagram of a communication system 700 provided by an embodiment of the present application. As shown in FIG. 7 , the communication system 700 includes a terminal device 710 and a network device 720 .
  • the terminal device 710 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 720 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction 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 Programming 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 conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • 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 this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • 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) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • 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 various 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 various 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 each method of the embodiments of the present application. , and are not repeated here for brevity.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. 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 each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.
  • the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application.
  • the corresponding process for the sake of brevity, will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus 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 may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and 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 in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请实施例提供了一种无线通信方法、终端设备和网络设备,终端设备能够在空闲态或者去激活态下进行上行同步,从而实现SRS的发送。该无线通信方法包括:终端设备确定第一TA;该终端设备根据该第一TA发送SRS,其中,该终端设备处于空闲态,或者,该终端设备处于去激活态。

Description

无线通信方法、终端设备和网络设备 技术领域
本申请实施例涉及通信领域,并且更具体地,涉及一种无线通信方法、终端设备和网络设备。
背景技术
在新空口(New Radio,NR)系统中,探测参考信号(Sounding Reference Signal,SRS)配置以及发送都是终端设备在连接态时进行的。然而,在一些场景下,终端设备需要在空闲态或者去激活态发送SRS,如何实现空闲态或者去激活态时的SRS发送,是一个亟待解决的问题。
发明内容
本申请实施例提供了一种无线通信方法、终端设备和网络设备,终端设备能够在空闲态或者去激活态下进行上行同步,从而实现SRS的发送。
第一方面,提供了一种无线通信方法,该方法包括:
终端设备确定第一TA;
该终端设备根据该第一TA发送SRS;
其中,该终端设备处于空闲态,或者,该终端设备处于去激活态。
第二方面,提供了一种无线通信方法,该方法包括:
网络设备接收终端设备根据第一TA发送的SRS,其中,该终端设备处于空闲态,或者,该终端设备处于去激活态。
第三方面,提供了一种终端设备,用于执行上述第一方面中的方法。
具体地,该终端设备包括用于执行上述第一方面中的方法的功能模块。
第四方面,提供了一种网络设备,用于执行上述第二方面中的方法。
具体地,该网络设备包括用于执行上述第二方面中的方法的功能模块。
第五方面,提供了一种终端设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面中的方法。
第六方面,提供了一种网络设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第二方面中的方法。
第七方面,提供了一种装置,用于实现上述第一方面至第二方面中的任一方面中的方法。
具体地,该装置包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该装置的设备执行如上述第一方面至第二方面中的任一方面中的方法。
第八方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
第九方面,提供了一种计算机程序产品,包括计算机程序指令,所述计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
第十方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
通过上述技术方案,终端设备能够在空闲态或者去激活态下根据第一TA发送SRS。也即,终端设备在空闲态或者去激活态下能够基于第一TA实现上行同步,从而,保障终端设备可以在空闲态或者去激活态时发送SRS。
附图说明
图1是本申请实施例应用的一种通信系统架构的示意性图。
图2是根据本申请实施例提供的一种无线通信方法的示意性流程图。
图3是根据本申请实施例提供的一种终端设备的示意性框图。
图4是根据本申请实施例提供的一种网络设备的示意性框图。
图5是根据本申请实施例提供的一种通信设备的示意性框图。
图6是根据本申请实施例提供的一种装置的示意性框图。
图7是根据本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。针对本申请中的实施例,本领域普通技术人员在 没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、新空口(New Radio,NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、非地面通信网络(Non-Terrestrial Networks,NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、第五代通信(5th-Generation,5G)系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信,或车联网(Vehicle to everything,V2X)通信等,本申请实施例也可以应用于这些通信系统。
可选地,本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
可选地,本申请实施例中的通信系统可以应用于非授权频谱,其中,非授权频谱也可以认为是共享频谱;或者,本申请实施例中的通信系统也可以应用于授权频谱,其中,授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例,其中,终端设备也可以称为用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STATION,ST),可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。
在本申请实施例中,终端设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中,终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality,VR)终端设备、增强现实(Augmented Reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中,网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及NR网络中的网络设备或者基站(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定,在本申请实施例中,网络设备可以具有移动特性,例如网络设备可以为移动的设备。可选地,网络设备可以为卫星、气球站。例如,卫星可以为低地球轨道(low earth orbit,LEO)卫星、中地球轨道(medium earth orbit,MEO)卫星、地球同步轨道(geostationary earth orbit,GEO) 卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等。可选地,网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中,网络设备可以为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
示例性的,本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110,网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备进行通信。
图1示例性地示出了一个网络设备和两个终端设备,可选地,该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
可选地,该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。
应理解,本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例,通信设备可包括具有通信功能的网络设备110和终端设备120,网络设备110和终端设备120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信系统100中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
应理解,位置是目前生活中不可或缺的应用之一,同时对定位的延迟和准确性要求也越来越严格。在许多定位应用中,精确定位通常是通过多种技术的组合来实现的,比如1)基于全球导航卫星系统(Global Navigation Satellite System,GNSS)提供户外场景中的位置信息;2)无线电技术(例如LTE网络,提供多种选项来定位用户,无线网络,地面信标系统,等等);3)惯性测量单元(Inertial Measurement Units,IMU)或传感器(例如基于加速计追踪用户位置、陀螺仪、磁力仪或利用大气压力传感器进行垂直定位)。这些技术都有望在未来实现准确的用户定位方面发挥重要作用。
第三代合作伙伴计划(The 3rd Generation Partnership Project,3GPP)NR的增强定位能力带来额外的增益。低频段和高频段(即FR1和FR2)的操作和大量天线阵列的使用提供了额外的自由度,大大提高了定位精度。基于到达时间差定位法(Observed Time Difference of Arrival,OTDOA)和上行到到时间差(Uplink Time Difference of Arrival,UTDOA)、小区标识(Cell-ID)或增强的小区标识(E-Cell-ID)等定位技术,利用大带宽(低频段以及高频段)进行时间测量为用户定位带来了更好的性能。利用大规模天线系统,如大规模(massive)多输入多输出(Multiple-Input Multiple-Output,massive MIMO)系统,通过结合时间测量以及传播信道的空间和角度域来实现更准确的用户位置。
探测参考信号(SRS)是定位使用的主要参考信号之一,基于终端设备发送的SRS,网络设备可以测量到达时间、信号强度、到达倾角等,从而确定终端设备的位置信息。此外,探测参考信号(SRS)也是上行测量的主要参考信号之一,终端设备可以基于SRS信号进行上行波束管理,从而确定上行传输所用的模拟波束。
SRS的激活与去激活可以基于媒体接入控制控制元素(Media Access Control Control Element,MAC CE)信令实现,该MAC CE信令用于激活/去激活用于定位(positioning)的SRS以及其对应的空间关系(spatial relation)。
需要说明的是,现阶段SRS的配置及发送都是终端设备在连接态时进行的,因为终端设备在连接态的时候与网络侧是同步的。那么当终端设备进入空闲(IDLE)态或者去激活(inactive)态的时候,由于未与网络同步,无法接收网络侧配置并发送SRS。
基于上述问题,本申请提出了一种发送SRS的方案,终端设备能够在空闲态或者去激活态下根据第一TA发送SRS。也即,终端设备在空闲态或者去激活态下能够基于第一TA实现上行同步,从 而,保障终端设备可以在空闲态或者去激活态时发送SRS。
以下通过具体实施例详述本申请的技术方案。
图2是根据本申请实施例的无线通信方法200的示意性流程图,如图2所示,该方法200可以包括如下内容中的至少部分内容:
S210,终端设备确定第一TA;
S220,该终端设备根据该第一TA向网络设备发送SRS,其中,该终端设备处于空闲态,或者,该终端设备处于去激活态;
S230,该网络设备接收该终端设备根据该第一TA发送的SRS。
在本申请实施例中,处于空闲态或者去激活态的终端设备能够基于第一TA实现上行同步,从而,保障终端设备可以在空闲态或者去激活态时发送SRS。
需要说明的是,在一些场景下,终端设备可以在空闲态或者去激活态时发送SRS,即终端设备无需进入连接态之后发送SRS,从而实现终端节能。
可选地,在本申请实施例中,该SRS包括以下中的至少一种:
用于上行测量的SRS,用于定位的SRS。
可选地,在本申请实施例中,该第一TA表示该终端设备与网络设备之间的定时提前量。或者,该第一TA表示该终端设备驻留小区中的参考点与基站之间的定时提前量。或者,该第一TA表示该终端设备驻留小区中的参考点与网络设备之间的定时提前量。又或者,该第一TA表示该终端设备驻留小区中的参考点与接入网设备之间的定时提前量。
可选地,该参考点位于该驻留小区的边缘,或者,该参考点位于该驻留小区的中心,或者,该参考点为该驻留小区中该终端设备所处的位置,或者,该参考点为该驻留小区中预配置或者协议约定的一个位置。
需要说明的是,在一些情况下,该驻留小区也可以理解为是该终端设备当前所处的小区,或者,该驻留小区也可以理解为是该终端设备进入空闲态/非激活态之前的服务小区。
可选地,在本申请实施例中,该第一TA可以通过如下示例1和示例2两种方案获取。
示例1,该终端设备根据第二TA和/或TA定时器确定该第一TA。
其中,该第二TA为该终端设备离开连接态前的TA,或者,该第二TA为该终端设备进入空闲态或者去激活态之后网络设备广播的TA,或者,该第二TA为随机接入过程中获取的TA。
需要说明的是,若该第二TA为该终端设备离开连接态前的TA,此种情况下,该第二TA可以是该终端设备离开连接态前最新获取到的TA。
此外,若该第二TA为随机接入过程中获取的TA,此种情况下,该第二TA例如可以承载在四步随机接入过程中的第二条信息(message 2,Msg 2)或者第四条信息(message 4,Msg 4)中;该第二TA例如也可以承载在两步随机接入过程中的第二条信息(message B,Msg B)中;该第二TA例如还可以承载在随机接入成功之后网络设备发送的信息中。进一步的,该第二TA还可以是终端设备随机接入成功后基于网络发送的TA命令(command)媒体接入控制控制元素(Media Access Control Control Element,MAC CE)调整获得的TA。
可选地,在示例1中,该终端设备根据该第二TA确定该第一TA。例如,该终端设备在获取该第二TA之后,直接将该第二TA确定为该第一TA。又例如,该终端设备在获取该第二TA之后,将该第二TA与TA偏移值的和确定为该第一TA,其中,该TA偏移值可以是预配置或者协议约定的,或者,该TA偏移值为网络设备通过广播的方式配置的。
可选地,在示例1中,该终端设备根据该第二TA和该TA定时器确定该第一TA。例如,在该TA定时器运行期间,该终端设备将该第二TA确定为该第一TA。即在该TA定时器运行期间,该第二TA即为该第一TA。以及在该TA定时器超时的情况下,该第二TA失效,此时,该终端设备无法确定该第一TA,也就无法根据该第一TA发送的SRS。
可选地,该TA定时器的启动或者重启条件包括以下中的至少一种:
该终端设备进入空闲态或者去激活态;
该终端设备接收到该TA定时器的配置信息;
该终端设备接收到用于更新该TA定时器的配置的指示信息;
该终端设备接收到网络设备发送的TA或TA调整值。
可选地,该TA定时器的停止条件包括以下中的至少一种:
该终端设备进入连接态;
该终端设备发起随机接入流程;
该终端设备从当前小区移动至其他小区;
该终端设备从当前跟踪区(tracking area)移动至其他跟踪区;
该终端设备从当前无线接入网(Radio Access Network,RAN)覆盖范围移动至其他RAN覆盖范围;
该终端设备从当前SRS有效区域移动至其他SRS有效区域。
需要说明的是,“当前”可以理解为是终端设备确定第一TA的时间或者时刻。
可选地,在示例1中,该终端设备接收配置信息,该配置信息用于配置该TA定时器。
例如,在该终端设备处于连接态的情况下,该终端设备接收该网络设备发送的该配置信息。
可选地,该配置信息承载在无线资源控制(Radio Resource Control,RRC)重配置信息中,或者,该配置信息承载在RRC释放信息中。
可选地,该配置信息也可以承载在系统信息中。即该终端设备可以在空闲态或者去激活态时接收该配置信息,此种情况下,该配置信息还可以包括该第二TA。
可选地,在示例1中,在该TA定时器超时的情况下,该终端设备发起随机接入流程,和/或,该终端设备停止发送该SRS。
需要说明的是,在该TA定时器超时的情况下,该终端设备发起随机接入流程,其目的可以是以下中的一种或者多种:
为了进入连接态,并在连接态发送SRS;
为了通过随机接入过程获取该第一TA,以及基于该第一TA继续发送SRS;
为了重新获取用于配置该TA定时器的配置信息。
示例2,该终端设备接收系统广播消息,该系统广播消息用于指示该第一TA;以及该终端设备根据该系统广播消息确定该第一TA。
可选地,该系统广播消息为周期性的广播消息。即网络设备可以周期性的广播该第一TA。例如,网络设备可以基于接收到的SRS,确定终端设备的位置和/或移动轨迹,并基于所确定的内容,周期性的更新该第一TA。
可选地,在一些实施例中,在该终端设备离开TA有效区域之后,该终端设备重新发起随机接入流程,其中,该终端设备在该随机接入流程中更新该第一TA。
相应的,网络设备在终端设备离开TA有效区域之后重新发起的随机接入流程中更新该第一TA。
可选地,该TA有效区域包括以下中的至少一种:
小区覆盖范围、RAN覆盖范围、跟踪区(Tracking Area)、SRS有效区域中的一个特定区域。
可选地,在该TA有效区域为小区覆盖范围的情况下,该终端设备根据系统消息中的物理小区标识(Physical Cell Identifier,PCI)确定是否离开该小区的覆盖范围。
例如,在该TA有效区域为小区覆盖范围的情况下,该终端设备可以根据系统消息中的PCI是否改变,确定是否离开该小区的覆盖范围。
因此,在本申请实施例中,终端设备能够在空闲态或者去激活态下根据第一TA发送SRS。也即,终端设备在空闲态或者去激活态下能够基于第一TA实现上行同步,从而,保障终端设备可以在空闲态或者去激活态时发送SRS。
上文结合图2,详细描述了本申请的方法实施例,下文结合图3至图7,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。
图3示出了根据本申请实施例的终端设备300的示意性框图。如图3所示,该终端设备300包括:
处理单元310,用于确定第一定时提前量TA;
通信单元320,用于根据该第一TA发送探测参考信号SRS,其中,该终端设备处于空闲态,或者,该终端设备处于去激活态。
可选地,该处理单元310具体用于:
根据第二TA和/或TA定时器确定该第一TA,
其中,该第二TA为该终端设备离开连接态前的TA,或者,该第二TA为该终端设备进入空闲态或者去激活态之后网络设备广播的TA,或者,该第二TA为随机接入过程中获取的TA。
可选地,该处理单元310具体用于:
在该TA定时器运行期间,将该第二TA确定为该第一TA。
可选地,该TA定时器的启动或者重启条件包括以下中的至少一种:
该终端设备进入空闲态或者去激活态;
该终端设备接收到该TA定时器的配置信息;
该终端设备接收到用于更新该TA定时器的配置的指示信息;
该终端设备接收到网络设备发送的TA或TA调整值。
可选地,该TA定时器的停止条件包括以下中的至少一种:
该终端设备进入连接态;
该终端设备发起随机接入流程;
该终端设备从当前小区移动至其他小区;
该终端设备从当前跟踪区移动至其他跟踪区;
该终端设备从当前无线接入网RAN覆盖范围移动至其他RAN覆盖范围;
该终端设备从当前SRS有效区域移动至其他SRS有效区域。
可选地,该通信单元320还用于接收配置信息,该配置信息用于配置该TA定时器。
可选地,该通信单元320具体用于:
在该终端设备处于连接态的情况下,接收该配置信息。
可选地,该配置信息承载在无线资源控制RRC重配置信息中,或者,该配置信息承载在RRC释放信息中。
可选地,在该TA定时器超时的情况下,该通信单元310还用于发起随机接入流程,和/或,该通信单元320还用于停止发送该SRS。
可选地,该通信单元320还用于接收系统广播消息,该系统广播消息用于指示该第一TA;
该处理单元310还用于根据该系统广播消息确定该第一TA。
可选地,该系统广播消息为周期性的广播消息。
可选地,在该终端设备离开TA有效区域之后,该通信单元320还用于重新发起随机接入流程,其中,该终端设备在该随机接入流程中更新该第一TA。
可选地,该TA有效区域包括以下中的至少一种:
小区覆盖范围、无线接入网RAN覆盖范围、跟踪区、SRS有效区域中的一个特定区域。
可选地,该处理单元310还用于在该TA有效区域为小区覆盖范围的情况下,根据系统消息中的物理小区标识PCI确定是否离开该小区的覆盖范围。
可选地,该第一TA表示该终端设备驻留小区中的参考点与基站之间的定时提前量,或者,该第一TA表示该终端设备与网络设备之间的定时提前量。
可选地,该参考点位于该驻留小区的边缘,或者,该参考点位于该驻留小区的中心,或者,该参考点为该驻留小区中该终端设备所处的位置,或者,该参考点为该驻留小区中预配置或者协议约定的一个位置。
可选地,该SRS包括以下中的至少一种:用于上行测量的SRS,用于定位的SRS。
可选地,在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备300可对应于本申请方法实施例中的终端设备,并且终端设备300中的各个单元的上述和其它操作和/或功能分别为了实现图2所示方法200中终端设备的相应流程,为了简洁,在此不再赘述。
图4示出了根据本申请实施例的网络设备400的示意性框图。如图4所示,该网络设备400包括:
通信单元410,用于接收终端设备根据第一定时提前量TA发送的探测参考信号SRS,其中,该终端设备处于空闲态,或者,该终端设备处于去激活态。
可选地,该第一TA为根据第二TA和/或TA定时器确定的,
其中,该第二TA为该终端设备离开连接态前的TA,或者,该第二TA为该终端设备进入空闲态或者去激活态之后网络设备广播的TA,或者,该第二TA为随机接入过程中获取的TA。
可选地,在该TA定时器运行期间,该第二TA为该第一TA。
可选地,该TA定时器的启动或者重启条件包括以下中的至少一种:
该终端设备进入空闲态或者去激活态;
该终端设备接收到该TA定时器的配置信息;
该终端设备接收到用于更新该TA定时器的配置的指示信息;
该终端设备接收到网络设备发送的TA或TA调整值。
可选地,该TA定时器的停止条件包括以下中的至少一种:
该终端设备进入连接态;
该终端设备发起随机接入流程;
该终端设备从当前小区移动至其他小区;
该终端设备从当前跟踪区移动至其他跟踪区;
该终端设备从当前无线接入网RAN覆盖范围移动至其他RAN覆盖范围;
该终端设备从当前SRS有效区域移动至其他SRS有效区域。
可选地,该通信单元410还用于向该终端设备发送配置信息,该配置信息用于配置该TA定时器。
可选地,该通信单元410具体用于:
在该终端设备处于连接态的情况下,向该终端设备发送该配置信息。
可选地,该配置信息承载在无线资源控制RRC重配置信息中,或者,该配置信息承载在RRC释放信息中。
可选地,该通信单元410还用于发送系统广播消息,该系统广播消息用于指示该第一TA。
可选地,该系统广播消息为周期性的广播消息。
可选地,该网络设备400还包括:
处理单元420,用于在该终端设备离开TA有效区域之后重新发起的随机接入流程中更新该第一TA。
可选地,该TA有效区域包括以下中的至少一种:
小区覆盖范围、无线接入网RAN覆盖范围、跟踪区、SRS有效区域中的一个特定区域。
可选地,该第一TA表示该终端设备驻留小区中的参考点与基站之间的定时提前量,或者,该第一TA表示该终端设备与网络设备之间的定时提前量。
可选地,该参考点位于该驻留小区的边缘,或者,该参考点位于该驻留小区的中心,或者,该参考点为该驻留小区中该终端设备所处的位置,或者,该参考点为该驻留小区中预配置或者协议约定的一个位置。
可选地,该SRS包括以下中的至少一种:用于上行测量的SRS,用于定位的SRS。
可选地,在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的网络设备400可对应于本申请方法实施例中的网络设备,并且网络设备400中的各个单元的上述和其它操作和/或功能分别为了实现图2所示方法200中网络设备的相应流程,为了简洁,在此不再赘述。
图5是本申请实施例提供的一种通信设备500示意性结构图。图5所示的通信设备500包括处理器510,处理器510可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图5所示,通信设备500还可以包括存储器520。其中,处理器510可以从存储器520中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器520可以是独立于处理器510的一个单独的器件,也可以集成在处理器510中。
可选地,如图5所示,通信设备500还可以包括收发器530,处理器510可以控制该收发器530与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器530可以包括发射机和接收机。收发器530还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备500具体可为本申请实施例的网络设备,并且该通信设备500可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备500具体可为本申请实施例的移动终端/终端设备,并且该通信设备500可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
图6是本申请实施例的装置的示意性结构图。图6所示的装置600包括处理器610,处理器610可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图6所示,装置600还可以包括存储器620。其中,处理器610可以从存储器620中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。
可选地,该装置600还可以包括输入接口630。其中,处理器610可以控制该输入接口630与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该装置600还可以包括输出接口640。其中,处理器610可以控制该输出接口640与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该装置可应用于本申请实施例中的网络设备,并且该装置可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该装置可应用于本申请实施例中的移动终端/终端设备,并且该装置可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
可选地,本申请实施例提到的装置也可以是芯片。例如可以是系统级芯片,系统芯片,芯片系统或片上系统芯片等。
图7是本申请实施例提供的一种通信系统700的示意性框图。如图7所示,该通信系统700包括终端设备710和网络设备720。
其中,该终端设备710可以用于实现上述方法中由终端设备实现的相应的功能,以及该网络设备720可以用于实现上述方法中由网络设备实现的相应的功能为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的移动终端/终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执 行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。针对这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (74)

  1. 一种无线通信方法,其特征在于,包括:
    终端设备确定第一定时提前量TA;
    所述终端设备根据所述第一TA发送探测参考信号SRS;
    其中,所述终端设备处于空闲态,或者,所述终端设备处于去激活态。
  2. 如权利要求1所述的方法,其特征在于,所述终端设备确定第一TA,包括:
    所述终端设备根据第二TA和/或TA定时器确定所述第一TA,
    其中,所述第二TA为所述终端设备离开连接态前的TA,或者,所述第二TA为所述终端设备进入空闲态或者去激活态之后网络设备广播的TA,或者,所述第二TA为随机接入过程中获取的TA。
  3. 如权利要求2所述的方法,其特征在于,所述终端设备根据第二TA和/或TA定时器确定所述第一TA,包括:
    在所述TA定时器运行期间,所述终端设备将所述第二TA确定为所述第一TA。
  4. 如权利要求2或3所述的方法,其特征在于,所述TA定时器的启动或者重启条件包括以下中的至少一种:
    所述终端设备进入空闲态或者去激活态;
    所述终端设备接收到所述TA定时器的配置信息;
    所述终端设备接收到用于更新所述TA定时器的配置的指示信息;
    所述终端设备接收到网络设备发送的TA或TA调整值。
  5. 如权利要求2至4中任一项所述的方法,其特征在于,所述TA定时器的停止条件包括以下中的至少一种:
    所述终端设备进入连接态;
    所述终端设备发起随机接入流程;
    所述终端设备从当前小区移动至其他小区;
    所述终端设备从当前跟踪区移动至其他跟踪区;
    所述终端设备从当前无线接入网RAN覆盖范围移动至其他RAN覆盖范围;
    所述终端设备从当前SRS有效区域移动至其他SRS有效区域。
  6. 如权利要求2至5中任一项所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收配置信息,所述配置信息用于配置所述TA定时器。
  7. 如权利要求6所述的方法,其特征在于,所述终端设备接收配置信息,包括:
    在所述终端设备处于连接态的情况下,所述终端设备接收所述配置信息。
  8. 如权利要求6或7所述的方法,其特征在于,
    所述配置信息承载在无线资源控制RRC重配置信息中,或者,所述配置信息承载在RRC释放信息中。
  9. 如权利要求2至8中任一项所述的方法,其特征在于,所述方法还包括:
    在所述TA定时器超时的情况下,所述终端设备发起随机接入流程,和/或,所述终端设备停止发送所述SRS。
  10. 如权利要求1所述的方法,其特征在于,所述终端设备确定第一TA,包括:
    所述终端设备接收系统广播消息,所述系统广播消息用于指示所述第一TA;
    所述终端设备根据所述系统广播消息确定所述第一TA。
  11. 如权利要求10所述的方法,其特征在于,所述系统广播消息为周期性的广播消息。
  12. 如权利要求1至11中任一项所述的方法,其特征在于,所述方法还包括:
    在所述终端设备离开TA有效区域之后,所述终端设备重新发起随机接入流程,其中,所述终端设备在所述随机接入流程中更新所述第一TA。
  13. 如权利要求12所述的方法,其特征在于,所述TA有效区域包括以下中的至少一种:
    小区覆盖范围、无线接入网RAN覆盖范围、跟踪区、SRS有效区域中的一个特定区域。
  14. 如权利要求13所述的方法,其特征在于,所述方法还包括:
    在所述TA有效区域为小区覆盖范围的情况下,所述终端设备根据系统消息中的物理小区标识PCI确定是否离开所述小区的覆盖范围。
  15. 如权利要求1至14中任一项所述的方法,其特征在于,
    所述第一TA表示所述终端设备驻留小区中的参考点与基站之间的定时提前量,或者,所述第一TA表示所述终端设备与网络设备之间的定时提前量。
  16. 如权利要求15所述的方法,其特征在于,所述参考点位于所述驻留小区的边缘,或者,所 述参考点位于所述驻留小区的中心,或者,所述参考点为所述驻留小区中所述终端设备所处的位置,或者,所述参考点为所述驻留小区中预配置或者协议约定的一个位置。
  17. 如权利要求1至16中任一项所述的方法,其特征在于,所述SRS包括以下中的至少一种:
    用于上行测量的SRS,用于定位的SRS。
  18. 一种无线通信方法,其特征在于,包括:
    网络设备接收终端设备根据第一定时提前量TA发送的探测参考信号SRS,其中,所述终端设备处于空闲态,或者,所述终端设备处于去激活态。
  19. 如权利要求18所述的方法,其特征在于,
    所述第一TA为根据第二TA和/或TA定时器确定的,
    其中,所述第二TA为所述终端设备离开连接态前的TA,或者,所述第二TA为所述终端设备进入空闲态或者去激活态之后网络设备广播的TA,或者,所述第二TA为随机接入过程中获取的TA。
  20. 如权利要求19所述的方法,其特征在于,
    在所述TA定时器运行期间,所述第二TA为所述第一TA。
  21. 如权利要求19或20所述的方法,其特征在于,所述TA定时器的启动或者重启条件包括以下中的至少一种:
    所述终端设备进入空闲态或者去激活态;
    所述终端设备接收到所述TA定时器的配置信息;
    所述终端设备接收到用于更新所述TA定时器的配置的指示信息;
    所述终端设备接收到网络设备发送的TA或TA调整值。
  22. 如权利要求19至21中任一项所述的方法,其特征在于,所述TA定时器的停止条件包括以下中的至少一种:
    所述终端设备进入连接态;
    所述终端设备发起随机接入流程;
    所述终端设备从当前小区移动至其他小区;
    所述终端设备从当前跟踪区移动至其他跟踪区;
    所述终端设备从当前无线接入网RAN覆盖范围移动至其他RAN覆盖范围;
    所述终端设备从当前SRS有效区域移动至其他SRS有效区域。
  23. 如权利要求19至22中任一项所述的方法,其特征在于,所述方法还包括:
    所述网络设备向所述终端设备发送配置信息,所述配置信息用于配置所述TA定时器。
  24. 如权利要求23所述的方法,其特征在于,所述网络设备向所述终端设备发送配置信息,包括:
    在所述终端设备处于连接态的情况下,所述网络设备向所述终端设备发送所述配置信息。
  25. 如权利要求23或24所述的方法,其特征在于,
    所述配置信息承载在无线资源控制RRC重配置信息中,或者,所述配置信息承载在RRC释放信息中。
  26. 如权利要求18所述的方法,其特征在于,所述方法还包括:
    所述网络设备发送系统广播消息,所述系统广播消息用于指示所述第一TA。
  27. 如权利要求26所述的方法,其特征在于,所述系统广播消息为周期性的广播消息。
  28. 如权利要求18至27中任一项所述的方法,其特征在于,所述方法还包括:
    所述网络设备在所述终端设备离开TA有效区域之后重新发起的随机接入流程中更新所述第一TA。
  29. 如权利要求28所述的方法,其特征在于,所述TA有效区域包括以下中的至少一种:
    小区覆盖范围、无线接入网RAN覆盖范围、跟踪区、SRS有效区域中的一个特定区域。
  30. 如权利要求18至29中任一项所述的方法,其特征在于,
    所述第一TA表示所述终端设备驻留小区中的参考点与基站之间的定时提前量,或者,所述第一TA表示所述终端设备与网络设备之间的定时提前量。
  31. 如权利要求30所述的方法,其特征在于,所述参考点位于所述驻留小区的边缘,或者,所述参考点位于所述驻留小区的中心,或者,所述参考点为所述驻留小区中所述终端设备所处的位置,或者,所述参考点为所述驻留小区中预配置或者协议约定的一个位置。
  32. 如权利要求18至31中任一项所述的方法,其特征在于,所述SRS包括以下中的至少一种:
    用于上行测量的SRS,用于定位的SRS。
  33. 一种终端设备,其特征在于,包括:
    处理单元,用于确定第一定时提前量TA;
    通信单元,用于根据所述第一TA发送探测参考信号SRS;
    其中,所述终端设备处于空闲态,或者,所述终端设备处于去激活态。
  34. 如权利要求33所述的终端设备,其特征在于,所述处理单元具体用于:
    根据第二TA和/或TA定时器确定所述第一TA,
    其中,所述第二TA为所述终端设备离开连接态前的TA,或者,所述第二TA为所述终端设备进入空闲态或者去激活态之后网络设备广播的TA,或者,所述第二TA为随机接入过程中获取的TA。
  35. 如权利要求34所述的终端设备,其特征在于,所述处理单元具体用于:
    在所述TA定时器运行期间,将所述第二TA确定为所述第一TA。
  36. 如权利要求34或35所述的终端设备,其特征在于,所述TA定时器的启动或者重启条件包括以下中的至少一种:
    所述终端设备进入空闲态或者去激活态;
    所述终端设备接收到所述TA定时器的配置信息;
    所述终端设备接收到用于更新所述TA定时器的配置的指示信息;
    所述终端设备接收到网络设备发送的TA或TA调整值。
  37. 如权利要求34至36中任一项所述的终端设备,其特征在于,所述TA定时器的停止条件包括以下中的至少一种:
    所述终端设备进入连接态;
    所述终端设备发起随机接入流程;
    所述终端设备从当前小区移动至其他小区;
    所述终端设备从当前跟踪区移动至其他跟踪区;
    所述终端设备从当前无线接入网RAN覆盖范围移动至其他RAN覆盖范围;
    所述终端设备从当前SRS有效区域移动至其他SRS有效区域。
  38. 如权利要求34至37中任一项所述的终端设备,其特征在于,所述通信单元还用于接收配置信息,所述配置信息用于配置所述TA定时器。
  39. 如权利要求38所述的终端设备,其特征在于,所述通信单元具体用于:
    在所述终端设备处于连接态的情况下,接收所述配置信息。
  40. 如权利要求38或39所述的终端设备,其特征在于,
    所述配置信息承载在无线资源控制RRC重配置信息中,或者,所述配置信息承载在RRC释放信息中。
  41. 如权利要求34至40中任一项所述的终端设备,其特征在于,
    在所述TA定时器超时的情况下,所述通信单元还用于发起随机接入流程,和/或,所述通信单元还用于停止发送所述SRS。
  42. 如权利要求33所述的终端设备,其特征在于,
    所述通信单元还用于接收系统广播消息,所述系统广播消息用于指示所述第一TA;
    所述处理单元还用于根据所述系统广播消息确定所述第一TA。
  43. 如权利要求42所述的终端设备,其特征在于,所述系统广播消息为周期性的广播消息。
  44. 如权利要求33至43中任一项所述的终端设备,其特征在于,
    在所述终端设备离开TA有效区域之后,所述通信单元还用于重新发起随机接入流程,其中,所述终端设备在所述随机接入流程中更新所述第一TA。
  45. 如权利要求44所述的终端设备,其特征在于,所述TA有效区域包括以下中的至少一种:
    小区覆盖范围、无线接入网RAN覆盖范围、跟踪区、SRS有效区域中的一个特定区域。
  46. 如权利要求45所述的终端设备,其特征在于,所述处理单元还用于在所述TA有效区域为小区覆盖范围的情况下,根据系统消息中的物理小区标识PCI确定是否离开所述小区的覆盖范围。
  47. 如权利要求33至46中任一项所述的终端设备,其特征在于,
    所述第一TA表示所述终端设备驻留小区中的参考点与基站之间的定时提前量,或者,所述第一TA表示所述终端设备与网络设备之间的定时提前量。
  48. 如权利要求47所述的终端设备,其特征在于,所述参考点位于所述驻留小区的边缘,或者,所述参考点位于所述驻留小区的中心,或者,所述参考点为所述驻留小区中所述终端设备所处的位置,或者,所述参考点为所述驻留小区中预配置或者协议约定的一个位置。
  49. 如权利要求33至48中任一项所述的终端设备,其特征在于,所述SRS包括以下中的至少一种:
    用于上行测量的SRS,用于定位的SRS。
  50. 一种网络设备,其特征在于,包括:
    通信单元,用于接收终端设备根据第一定时提前量TA发送的探测参考信号SRS,其中,所述终端设备处于空闲态,或者,所述终端设备处于去激活态。
  51. 如权利要求50所述的网络设备,其特征在于,
    所述第一TA为根据第二TA和/或TA定时器确定的,
    其中,所述第二TA为所述终端设备离开连接态前的TA,或者,所述第二TA为所述终端设备进入空闲态或者去激活态之后网络设备广播的TA,或者,所述第二TA为随机接入过程中获取的TA。
  52. 如权利要求51所述的网络设备,其特征在于,
    在所述TA定时器运行期间,所述第二TA为所述第一TA。
  53. 如权利要求51或52所述的网络设备,其特征在于,所述TA定时器的启动或者重启条件包括以下中的至少一种:
    所述终端设备进入空闲态或者去激活态;
    所述终端设备接收到所述TA定时器的配置信息;
    所述终端设备接收到用于更新所述TA定时器的配置的指示信息;
    所述终端设备接收到网络设备发送的TA或TA调整值。
  54. 如权利要求51至53中任一项所述的网络设备,其特征在于,所述TA定时器的停止条件包括以下中的至少一种:
    所述终端设备进入连接态;
    所述终端设备发起随机接入流程;
    所述终端设备从当前小区移动至其他小区;
    所述终端设备从当前跟踪区移动至其他跟踪区;
    所述终端设备从当前无线接入网RAN覆盖范围移动至其他RAN覆盖范围;
    所述终端设备从当前SRS有效区域移动至其他SRS有效区域。
  55. 如权利要求51至54中任一项所述的网络设备,其特征在于,所述通信单元还用于向所述终端设备发送配置信息,所述配置信息用于配置所述TA定时器。
  56. 如权利要求55所述的网络设备,其特征在于,所述通信单元具体用于:
    在所述终端设备处于连接态的情况下,向所述终端设备发送所述配置信息。
  57. 如权利要求55或56所述的网络设备,其特征在于,
    所述配置信息承载在无线资源控制RRC重配置信息中,或者,所述配置信息承载在RRC释放信息中。
  58. 如权利要求50所述的网络设备,其特征在于,所述通信单元还用于发送系统广播消息,所述系统广播消息用于指示所述第一TA。
  59. 如权利要求58所述的网络设备,其特征在于,所述系统广播消息为周期性的广播消息。
  60. 如权利要求50至59中任一项所述的网络设备,其特征在于,所述网络设备还包括:
    处理单元,用于在所述终端设备离开TA有效区域之后重新发起的随机接入流程中更新所述第一TA。
  61. 如权利要求60所述的网络设备,其特征在于,所述TA有效区域包括以下中的至少一种:
    小区覆盖范围、无线接入网RAN覆盖范围、跟踪区、SRS有效区域中的一个特定区域。
  62. 如权利要求50至61中任一项所述的网络设备,其特征在于,
    所述第一TA表示所述终端设备驻留小区中的参考点与基站之间的定时提前量,或者,所述第一TA表示所述终端设备与网络设备之间的定时提前量。
  63. 如权利要求62所述的网络设备,其特征在于,所述参考点位于所述驻留小区的边缘,或者,所述参考点位于所述驻留小区的中心,或者,所述参考点为所述驻留小区中所述终端设备所处的位置,或者,所述参考点为所述驻留小区中预配置或者协议约定的一个位置。
  64. 如权利要求50至63中任一项所述的网络设备,其特征在于,所述SRS包括以下中的至少一种:
    用于上行测量的SRS,用于定位的SRS。
  65. 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至17中任一项所述的方法。
  66. 一种网络设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述 处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求18至32中任一项所述的方法。
  67. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至17中任一项所述的方法。
  68. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求18至32中任一项所述的方法。
  69. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至17中任一项所述的方法。
  70. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求18至32中任一项所述的方法。
  71. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至17中任一项所述的方法。
  72. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求18至32中任一项所述的方法。
  73. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至17中任一项所述的方法。
  74. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求18至32中任一项所述的方法。
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