WO2023169362A1 - 一种寻呼方法及其装置 - Google Patents

一种寻呼方法及其装置 Download PDF

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Publication number
WO2023169362A1
WO2023169362A1 PCT/CN2023/079848 CN2023079848W WO2023169362A1 WO 2023169362 A1 WO2023169362 A1 WO 2023169362A1 CN 2023079848 W CN2023079848 W CN 2023079848W WO 2023169362 A1 WO2023169362 A1 WO 2023169362A1
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WIPO (PCT)
Prior art keywords
sdt
access network
paging message
terminal device
information
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PCT/CN2023/079848
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English (en)
French (fr)
Inventor
徐敏
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Application filed by Spreadtrum Communications Shanghai Co Ltd filed Critical Spreadtrum Communications Shanghai Co Ltd
Priority to US18/844,291 priority Critical patent/US20250220636A1/en
Priority to EP23765940.4A priority patent/EP4492886A4/en
Publication of WO2023169362A1 publication Critical patent/WO2023169362A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]

Definitions

  • the present application relates to the field of communication technology, and in particular, to a paging method and a device thereof.
  • the air interface status of the terminal device includes: Radio Resource Control idle (Radio Resource Control_IDLE, RRC_idle) state, RRC connection ( RRC_connected) state and RRC inactive (RRC_inactive) state.
  • Radio Resource Control_IDLE Radio Resource Control_IDLE
  • RRC_idle Radio Resource Control
  • RRC connection RRC_connected
  • RRC_inactive RRC inactive
  • the terminal device When the terminal device is in the RRC_inactive state, the terminal device does not need to notify the base station when moving within the Radio access network-based Notification Area (RNA).
  • the terminal device can retain certain configurations (such as retaining the Packet Data Aggregation Protocol). Convergence Protocol (PDCP), Service Data Adaptation Protocol (SDAP) and other configurations), if the base station needs to schedule the terminal equipment or the terminal equipment has data to send, it needs to migrate to the RRC_connected state and restore the retained configuration for data pass.
  • PDCP Packet Data Aggregation Protocol
  • SDAP Service Data Adaptation Protocol
  • Small data transmission can send or receive data in the RRC_inactive state without migrating to the RRC_connected state.
  • the network will configure some conditions to allow the use of SDT.
  • the base station that stores the context of the terminal device or that sends the RRC Release message to the terminal device to the RRC_inactive state is called the last serving base station (last serving gNB) or the anchor base station (anchor gNB).
  • the terminal device When the terminal device is in the RRC_inactive state, the terminal device does not need to notify the base station when it moves within the RNA range. If the terminal device moves to another base station within the RNA range (such as called base station b), the mobile station is called (mobile terminated, MT) scenario , the base station (for example, called base station a) needs to send a RAN paging (paging) message through the Xn interface between base stations to notify base station b to page the terminal device. However, base station b cannot determine whether to initiate MT-SDT paging, which may result in failure to page the terminal device.
  • RAN paging paging
  • This application discloses a paging method and its device, which facilitates successful paging of the terminal device through the first paging message.
  • embodiments of the present application provide a paging method, which is applied to a first access network device.
  • the method includes: sending a first paging message to a second access network device.
  • the message includes the identification of the paged terminal equipment and instruction information for instructing the mobile station to perform paged-small packet transmission MT-SDT.
  • the method may further include: receiving first information from the core network device, where the first information includes quality of service QoS information of downlink data to be transmitted to the terminal device.
  • the method may further include: sending second information to the second access network device, the The second information includes one or more of the following: the amount of downlink data to be transmitted to the terminal device, QoS information of the downlink data, and the identification of the radio bearer RB that supports SDT.
  • the above downlink data includes predicted data to be transmitted to the terminal device.
  • the above-mentioned sending of the first paging message to the second access network device is as follows: if the identifier of the RB that supports SDT includes the RB identifier of the above-mentioned downlink data, then the first paging message is sent to the second access network device. The second access network device sends the first paging message.
  • the method may further include: receiving capability information from the second access network device, where the capability information is used to indicate whether a cell served by the second access network device supports MT-SDT.
  • embodiments of the present application provide another paging method, which is applied to terminal equipment.
  • the method includes: receiving a paging message from an access network device, where the paging message includes the paged terminal.
  • the above determination is made as to whether to use SDT resources for uplink transmission.
  • the specific implementation method is: if the identification of the RB that supports SDT includes the RB identification of the uplink data to be transmitted, then it is determined to use SDT resources for uplink transmission. Uplink transmission.
  • embodiments of the present application provide yet another paging method, applied to a second access network device.
  • the method includes: receiving a first paging message from a first access network device, and the A paging message includes the identification of the paged terminal device and instruction information for instructing the mobile station to perform paging-small packet transmission MT-SDT.
  • the method may further include: sending a second paging message to the terminal device according to the first paging message, the second paging message including the identity of the paged terminal device and the username. Instruction information instructing to perform MT-SDT.
  • the method may further include: receiving second information from the first access network device; the second information includes one or more of the following: downlink data to be transmitted to the terminal device The amount of data, the quality of service QoS information of the downlink data, and the identification of the wireless bearer RB that supports SDT; and based on the second information, send a third paging message to the terminal device, where the third paging message includes the paged terminal device The identification and the instruction information used to instruct MT-SDT.
  • the above downlink data includes predicted data to be transmitted to the terminal device.
  • the third paging message is sent to the terminal device according to the second information.
  • the specific implementation manner is: if the identity of the RB that supports SDT includes the RB identity of the downlink data, then the third paging message is sent to the terminal device.
  • the terminal device sends a third paging message.
  • the method may further include: sending capability information to the first access network device, where the capability information is used to indicate whether a cell served by the second access network device supports MT-SDT.
  • embodiments of the present application provide yet another paging method, applied to a second access network device.
  • the method includes: receiving second information from the first access network device, and the second information Including one or more of the following: the amount of downlink data to be transmitted to the terminal device, the quality of service QoS information of the downlink data, and the identification of the wireless bearer RB that supports small packet transmission SDT; and based on the second information, send to the terminal device
  • the information includes the identification of the paged terminal equipment and the instruction information used to instruct the mobile station to perform the paged-small packet transmission MT-SDT.
  • the method may further include: receiving a first paging message from the first access network device, where the first paging message includes an identification of the paged terminal device and an instruction to proceed. MT-SDT instruction information.
  • the above downlink data includes predicted data to be transmitted to the terminal device.
  • the fourth paging message is sent to the terminal device according to the second information.
  • the specific implementation manner is: if the identity of the RB that supports SDT includes the RB identity of the downlink data, Then send the fourth paging message to the terminal device.
  • the method may further include: sending capability information to the first access network device, where the capability information is used to indicate whether a cell served by the second access network device supports MT-SDT.
  • an embodiment of the present application provides a paging device, which includes a unit for implementing the method described in the first, second, third or fourth aspect.
  • an embodiment of the present application provides another paging device, including a processor; the processor is configured to execute the method described in the first aspect, the second aspect, the third aspect or the fourth aspect.
  • the paging device may further include a memory; the memory is used to store a computer program; and a processor is specifically used to call the computer program from the memory to execute the first aspect, the second aspect, The method described in the third or fourth aspect.
  • embodiments of the present application provide a chip, which is used to execute the method described in the first aspect, the second aspect, the third aspect or the fourth aspect.
  • inventions of the present application provide a chip module.
  • the chip module includes a communication interface and a chip, wherein: the communication interface is used for internal communication of the chip module, or for communication between the chip module and an external device. ;
  • the chip is used to perform the method described in the first aspect, the second aspect, the third aspect or the fourth aspect.
  • inventions of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program.
  • the computer program includes program instructions. When executed by a processor, the program instructions cause the The processor performs the method described in the first aspect, the second aspect, the third aspect or the fourth aspect.
  • embodiments of the present application provide a computer program product including a computer program or instructions.
  • the computer program or instructions When the computer program or instructions are run on a computer, the computer executes the first aspect, the second aspect, the third aspect or the fourth aspect. methods described in this regard.
  • the first paging message carries the instruction information for instructing to perform MT-SDT
  • the second access network device can determine that the MT-SDT process can be initiated. This can avoid that the second access network device cannot Determine whether a situation to initiate the MT-SDT procedure occurs, thereby facilitating successful paging of the terminal device.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic flowchart of a four-step random access provided by an embodiment of the present application
  • Figure 3 is a schematic flowchart of a two-step random access provided by an embodiment of the present application.
  • Figure 4 is a schematic flow chart of a paging method provided by an embodiment of the present application.
  • Figure 5 is a schematic flow chart of another paging method provided by an embodiment of the present application.
  • Figure 6 is a schematic flow chart of yet another paging method provided by an embodiment of the present application.
  • Figure 7 is a schematic flow chart of yet another paging method provided by an embodiment of the present application.
  • Figure 8 is a schematic flow chart of yet another paging method provided by an embodiment of the present application.
  • Figure 9 is a schematic structural diagram of a paging device provided by an embodiment of the present application.
  • Figure 10 is a schematic structural diagram of another paging device provided by an embodiment of the present application.
  • Figure 11 is a schematic structural diagram of another paging device provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a chip module provided by an embodiment of the present application.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • the communication system may include but is not limited to a first access network device, a second access network device and a terminal device.
  • the number and form of devices shown in Figure 1 are for example and do not constitute a limitation on the embodiments of the present application. Practical applications may include two or more first access network devices, second access network devices, and two or more terminal devices.
  • the communication system shown in Figure 1 includes a first access network device 101, a second access network device 102 and a terminal device 103 as an example.
  • the terminal device in the embodiment of the present application is a device with wireless transceiver function, which can be called a terminal (terminal), user equipment (UE), mobile station (MS), mobile terminal (mobile terminal) terminal, MT), access terminal equipment, vehicle-mounted terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE Devices etc.
  • Terminal equipment can be fixed or mobile.
  • the terminal device can support at least one wireless communication technology, such as long time evolution (LTE), new radio (NR), wideband code division multiple access (WCDMA) wait.
  • LTE long time evolution
  • NR new radio
  • WCDMA wideband code division multiple access
  • the terminal device may be a mobile phone (mobile phone), tablet computer (pad), desktop computer, notebook computer, all-in-one computer, vehicle-mounted terminal, virtual reality (VR) terminal device, augmented reality (AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, transportation security Wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless Wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, wearable device, future mobile communications Terminal equipment in the network or terminal equipment in the public land mobile network (PLMN) that will evolve in the future, etc.
  • PLMN public land mobile network
  • the terminal device may also be a device with transceiver functions, such as a chip module.
  • the chip module may include chips and may also include other discrete devices.
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the terminal equipment.
  • the access network (AN) device (such as the first access network device, the second access network device) is a device that provides wireless communication functions for terminal devices.
  • the access network device can be Radio access network (RAN) equipment.
  • the access network equipment may support at least one wireless communication technology, such as LTE, NR, WCDMA, etc.
  • access network equipment examples include but are not limited to: next-generation base stations (generation nodeB, gNB), evolved node B (evolved node B, eNB), wireless Network controller (radio network controller, RNC), node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (BTS), home base station (e.g., home evolved node B, or home node B, HNB), baseband unit (BBU), TRP, transmitting point (TP), mobile switching center, etc.
  • the access network device can also be a wireless controller, a centralized unit (CU) and/or a distributed unit (DU) in a cloud radio access network (CRAN) scenario.
  • CRAN cloud radio access network
  • the access network equipment may also be a device that provides wireless communication functions for terminal equipment, such as a chip module.
  • the chip module may include chips, and may also include other discrete devices. The embodiments of this application do not limit the specific technology and specific equipment form used by the access network equipment.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems.
  • LTE communication system 4th generation (4G) mobile communication system
  • 5G mobile communication system 5G NR system
  • the methods of the embodiments of this application are also applicable to various future communication systems, such as 6G systems or other communication networks.
  • the communication system shown in Figure 1 may also include core network equipment (not shown in Figure 1).
  • Core network equipment can have the following functions: provide broadband access services, realize the aggregation and forwarding of multiple services, meet the requirements of different users for transmission capacity and bandwidth utilization, and are used to terminate and manage the point-to-point protocol (Point) on users' Ethernet networks.
  • -to-Point Protocol Over Ethernet, PPPoE)/IPoE session providing authentication services, authorization services or accounting services.
  • the terminal device 103 can access the wireless network through the access network device, and register in the core network through the core network device.
  • core network equipment may include but is not limited to: mobility management network elements, user plane network elements, session management network elements, etc.
  • the mobility management network element can be an access and mobility management function (AMF) network element
  • the user plane network element can be a user plane function (UPF) network element
  • the session The management network element may be a session management function (session management function, SMF) network element.
  • the mobility management network element is the termination point of non-access stratum (NAS) signaling and is mainly responsible for user access authentication and mobility management.
  • the terminal device and the AMF can communicate through N1NAS messages, and the communication messages between the terminal device and the AMF can also be relayed through the N2 messages of the RAN.
  • NAS non-access stratum
  • the RAN and AMF communicate through N2 messages.
  • the user plane network element is used to process user packets, such as forwarding and accounting.
  • the session management network element is responsible for session management, such as user session establishment and deletion, maintaining protocol data unit (PDU) session context and user plane forwarding pipeline information, etc.
  • N1 represents the interface between the AMF network element and the terminal equipment
  • N2 represents the interface between the AMF network element and the RAN equipment.
  • the random access process refers to the process from when the user sends a random access preamble and starts trying to access the network to when a basic signaling connection is established with the network.
  • the preamble can be used by the network device to identify the identity of the terminal device during random access, or used by the network device to distinguish the device that initiates random access. It can also be used for other purposes, which is not limited in the embodiments of this application.
  • the random access process includes four-step random access and two-step random access.
  • the four-step random access can include four messages: message 1 (also called Msg1), message 2 (also called Msg2), message 3 (also called Msg3) and message 4 (also called Msg4).
  • message 1 also called Msg1
  • message 2 also called Msg2
  • message 3 also called Msg3
  • message 4 also called Msg4
  • the terminal device sends Msg1 on the Physical Random Access Channel occasion (RO), and Msg1 includes the preamble.
  • RO Physical Random Access Channel occasion
  • the network device After receiving the preamble, the network device generates a Random Access Response (RAR) for the preamble and sends the RAR (RAR can also be called Msg2).
  • RAR is carried on the Physical Downlink shared channel (PDSCH).
  • the PDSCH is scheduled by the Physical Downlink Control Channel (PDCCH).
  • the PDCCH uses a Random Access Radio Network Temporary Identifier. , RA-RNTI) scrambling.
  • RAR includes one or more of the following: Timing Advance Command (TAC), uplink grant (UL grant), Temporary Cell Radio Network Temporary Identifier (TC-RNTI).
  • TAC Timing Advance Command
  • UL grant carries TA information.
  • UL grant carries the scheduling information of Msg3 sent by the terminal device.
  • Terminal equipment without Cell Radio Network Temporary Identifier (C-RNTI) can receive Msg4 through TC-RNTI.
  • the first two steps of the random access process mainly complete the uplink time synchronization.
  • Multiple terminal devices may choose the same RO and preamble to initiate the random access process, which will cause conflicts.
  • the last two steps of the random access process can resolve the conflict and assign a unique and legal identity to the terminal device for subsequent use. data transmission.
  • the terminal device After sending Msg1, the terminal device monitors the PDCCH scrambled by RA-RNTI to receive RAR. After receiving the RAR, Msg3 is sent, and Msg3 is carried on the Physical uplink shared channel (PUSCH). For terminal equipment in non-RRC_connected state, send RRC Common Control Channel (CCCH).
  • PUSCH Physical uplink shared channel
  • CCCH RRC Common Control Channel
  • the network device receives the PUSCH sent by the terminal device, if the terminal device wins the conflict resolution, it generates a response to the PUSCH (ie, Msg4), and Msg4 is carried on the PDSCH.
  • Msg4 is carried on the PDSCH.
  • the flag used to uniquely identify the terminal device (Contention Resolution Identity (CRID)) is carried in Msg4 to indicate the winning terminal device, and other terminal devices that have not won the conflict resolution will re-initiate random access.
  • CRID Contention Resolution Identity
  • the terminal device will consider the random access successful and will Convert own TC-RNTI to C-RNTI.
  • Two-step random access consists of message A (also called MsgA) and message B (also called MsgB).
  • message A also called MsgA
  • MsgB message B
  • the flow chart of the two-step random access process is shown in Figure 3.
  • MsgA includes Msg1 and Msg3, that is, it includes the preamble sent on PRACH and the payload sent on PUSCH.
  • MsgB includes Msg2 and Msg4. If the network device only receives the preamble sent by the terminal device, it replies with the RAR of the four-step random access process, and the terminal device falls back to the four-step random access process.
  • Random access channel-SDT random access channel-SDT, RA-SDT
  • configuration authorization-SDT configured grant-SDT, CG-SDT
  • SDT includes two transmission methods: RA-SDT and CG-SDT.
  • RA-SDT refers to the sending method that can carry data (data) in addition to sending RRC messages in Msg3 of the four-step random access process.
  • RA-SDT refers to the sending method that in addition to sending RRC messages in MsgA of the two-step random access process.
  • Sending RRC messages can also carry the data sending method.
  • CG-SDT refers to a method in which the network allocates dedicated CG Type 1 resources to the terminal device. The terminal device uses this resource for transmission and has a valid TA, and can directly send data without sending a preamble. Compared with the four-step random access process, CG-SDT reduces the steps of Msg1 and Msg2.
  • the network When the terminal device transitions to the RRC_inactive state through the RRC Release (Release) message, the network will configure some conditions to allow the use of SDT. For example, configure the data amount threshold and allow the use of SDT radio bearers (radio bearers, RB), including signaling radio bearers (Signaling radio bearer, SRB) and data radio bearers (Data radio bearer, DRB).
  • radio bearers radio bearers, RB
  • SRB Signaling radio bearers
  • DRB data radio bearers
  • an RB that is allowed to use SDT can also be described as an RB that supports SDT.
  • CG-SDT is only used in the cell that receives the RRC Release message. Once the cell is reselected to a new cell, the terminal device will release the corresponding CG resources.
  • the following parameters may be different: the threshold range of RSRP change, and the signal threshold used by SSB.
  • the RSRP threshold can also be configured. RA-SDT resources are configured through the system messages of each cell. Optionally, the RSRP thresholds configured in different cells can be different.
  • Figure 4 is a schematic flow chart of a paging method provided by an embodiment of the present application.
  • the corresponding embodiment in Figure 4 mainly describes how the first access network device triggers the MT-SDT process, and further describes how the second access network device triggers the MT-SDT process.
  • the paging method may include but is not limited to the following steps:
  • the first access network device sends a first paging message to the second access network device.
  • the first paging message includes the identifier of the paged terminal device and is used to instruct the mobile station to be called-small packet transmission MT. -Instructions for SDT.
  • the second access network device receives the first paging message from the first access network device.
  • the terminal device may be in a non-RRC_connected state, and the non-RRC_connected state may refer to the RRC_idle state or the RRC_inactive state.
  • the instruction information used to instruct MT-SDT can also be described as: the instruction information used to instruct enhanced paging.
  • the first paging message includes instruction information for instructing to perform MT-SDT or instruction information for instructing to perform enhanced paging, indicating that: the first access network device determines that the MT-SDT process can be initiated. Initiating the MT-SDT process means that the terminal device in the non-RRC_connected state can use SDT resources for uplink transmission.
  • Initiating the MT-SDT process can also be described as initiating MT-SDT paging or initiating enhanced paging.
  • the second access network device can determine The MT-SDT process can be initiated to avoid the situation where the second access network device cannot determine whether to initiate the MT-SDT process because it does not have the configuration information of the terminal device (for example, the RB configuration information of whether the terminal device is allowed to use SDT). , thus facilitating successful paging of the terminal device.
  • the terminal device uses SDT resources for uplink transmission, including: the terminal device uses SDT resources to transmit uplink data and/or signaling, where the uplink data may refer to useful data to be transmitted in the terminal device, service data or User data, the signaling may include signaling in response to a paging message received by the terminal device.
  • the last access network device (or anchor access network device) corresponding to the terminal device 103 in the non-RRC_connected state is the first access network device. 101
  • the terminal device 103 moves from the RNA range to other access network devices within the RNA range (such as the second access network device 102).
  • the first access network device 101 needs to send a paging message to the second access network device 102 through the Xn interface to instruct the second access network device 102 to page the terminal device 103.
  • the second access network device 102 does not know the conditions configured by the network to allow the use of SDT when the terminal device 103 transitions to the RRC_inactive state.
  • the second access network device 102 cannot determine whether to initiate an attack on the terminal device 103.
  • MT-SDT process For example, the configuration information of the RB that allows the use of SDT (that is, a condition for allowing the use of SDT) is known only to the last access network device (the first access network device 101) corresponding to the terminal device 103, and the second access network The device 102 does not know, so the second access network device 102 cannot determine whether to initiate the MT-SDT process for the terminal device 103.
  • the second access network device can determine that the MT-SDT process can be initiated. This can prevent the second access network device from being unable to determine whether to initiate the MT-SDT process. SDT process situation occurs.
  • the first paging message may be transmitted through the Xn interface between the first access network device and the second access network device, and the first paging message is an Xn RAN Paging message.
  • the first access network device may receive first information from the core network device, where the first information includes Quality of Service (QoS) information of downlink data to be transmitted to the terminal device.
  • QoS information of the downlink data may include one or more of the following: QoS flow information of the downlink data, delay requirements, data packet size, and information related to the downlink data service.
  • the QoS flow information of the downlink data may include a QoS flow identifier.
  • the downlink data may include predicted data to be transmitted to the terminal device, and/or determined data to be transmitted to the terminal device.
  • the first information may also include downlink data to be transmitted to the terminal device.
  • the first access network device may determine whether to initiate the MT-SDT process based on the first information.
  • the first access network device may determine whether to initiate the MT-SDT process based on the first information, including: It is determined whether the identifier of the RB that supports SDT includes the RB identifier of the downlink data. If the identifier of the RB that supports SDT includes the RB identifier of the downlink data, it is determined to initiate the MT-SDT process. If the identity of the RB that supports SDT does not include the RB identity of the downlink data, the MT-SDT process does not need to be initiated.
  • the first access network device when it is determined to initiate the MT-SDT process, adds an instruction for instructing to perform MT-SDT in the paging message (ie, the first paging message) sent to the second access network device. information.
  • the first access network device sends a first paging message to the second access network device, including: if the identity of the RB that supports SDT includes the RB identity of the downlink data, the first access network device sends the first paging message to the second access network device.
  • the second access network device sends the first paging message.
  • the first access network device may not add instruction information for instructing to perform MT-SDT in the paging message sent to the second access network device.
  • the RB identifier of the downlink data is determined based on the QoS information of the downlink data. Specifically, the first access network device can determine the RB identifier of the downlink data in the following manner: in the mapping relationship between the Qos flow identifier and the RB identifier, the RB identifier mapped to the Qos flow identifier of the downlink data is the downlink identifier. The RB identifier of the data.
  • the first information may also include the data amount of the downlink data, where the data amount of the downlink data may include: the data amount of the existing downlink data to be transmitted to the terminal device, And/or, the predicted data amount of downlink data to be transmitted to the terminal device.
  • the core network device can assist the first access network device in determining whether to initiate the MT-SDT process.
  • the core network device in the embodiment of this application may be a mobility management network element (such as AMF) or a user plane network element (such as UPF).
  • AMF mobility management network element
  • UPF user plane network element
  • the first access network device before the first access network device sends the first paging message to the second access network device, whether the cell that the two can serve interactively supports MT-SDT.
  • the second access network device sends capability information to the first access network device, and the capability information is used to indicate whether the cell served by the second access network device supports MT-SDT.
  • the first access network device receives the capability information.
  • the first access network device and the second access network device may exchange whether the serving cell supports MT-SDT in the Xn setup process.
  • the first access network device can send a request message to the second access network device, and the request message requests After obtaining the aforementioned capability information, the second access network device sends a response message to the first access network device, where the response message includes the capability information.
  • the request message can be an Xn setup request message
  • the response message can be an Xn setup response message.
  • the capability information can be indicated through the Served Cell Information (Served Cell Information) NR field in the Xn setup request and Xn setup response, or a new field can be extended in the Xn setup request and Xn setup response to indicate the capability. information.
  • the second access network device may also perform the following steps:
  • the second access network device sends a second paging message to the terminal device according to the first paging message.
  • the second paging message includes the identifier of the paged terminal device and an instruction for instructing to perform MT-SDT. information.
  • the terminal device receives the second paging message.
  • the second access network device learns that the first paging message contains instruction information for instructing to perform MT-SDT, and the second access network device sends the second paging message to the terminal device, that is, initiates the MT-SDT process.
  • the information carried in the first paging message and the second paging message may be the same, but the first paging message and the second paging message are different, that is, the RAN paging message transmitted between access network devices is different from the access network device.
  • the paging messages sent by the network access device to the terminal device are different.
  • the corresponding embodiment of Figure 6 mainly describes how the terminal device determines whether it can use SDT resources for uplink transmission after receiving the paging message from the access network device.
  • the paging method shown in Figure 6 includes but is not limited to steps S601-S602.
  • the access network device sends a paging message to the terminal device.
  • the paging message includes the identifier of the paged terminal device and instruction information for instructing to perform MT-SDT.
  • the terminal device receives the paging message from the access network device.
  • the access network device in S601 may be the first access network device or the second access network device.
  • the paging message in S601 may be the above-mentioned first paging. message.
  • the first access network device directly sends the paging message to the terminal device without going through the second access network device. It can be understood that in this case, the terminal device is within the coverage of the first access network device.
  • the content of the first paging message please refer to the specific description in step S401 in the corresponding embodiment of Figure 4, which will not be described again here.
  • the paging message in S601 may be the above-mentioned second paging message, or the paging message in S601 may be the following paging message.
  • the first access network device may indirectly send the paging message to the terminal device through the second access network device.
  • the content of the second paging message, the third paging message, and the fourth paging message please refer to step S502 in the corresponding embodiment of FIG. 5, step S703 in the corresponding embodiment of FIG. 7, and step S802 in the corresponding embodiment of FIG. 8. The specific description will not be repeated here.
  • S602 If there is uplink data to be transmitted, the terminal device determines whether SDT resources can be used for uplink transmission; and/or, if there is no uplink data to be transmitted, the terminal device selects SDT resources for uplink transmission.
  • determining whether SDT resources can be used for uplink transmission includes: if the identifier of an RB that supports SDT includes the RB identifier of the uplink data to be transmitted, then determining to use SDT resources for uplink transmission.
  • SDT resources may not be used for uplink transmission. For example, non-SDT RACH resources may be used for uplink transmission.
  • the uplink data to be transmitted is allowed RB data, it is determined that SDT resources can be used for uplink transmission; if the uplink data to be transmitted is not allowed RB data, SDT resources may not be used for uplink transmission.
  • determining whether SDT resources can be used for uplink transmission includes: determining whether the identifier of an RB that supports SDT includes the RB identifier of the uplink data to be transmitted, and determining whether the amount of uplink data to be transmitted meets the data amount threshold. If the identifier of the RB that supports SDT includes the RB identifier of the uplink data to be transmitted, and the data volume of the uplink data to be transmitted meets the data volume threshold, it is determined that the SDT resource can be used for uplink transmission.
  • the SDT resource cannot be used for uplink transmission.
  • the identifier of the RB supporting SDT includes the RB identifier of the uplink data to be transmitted, it means that the uplink data to be transmitted is allowed RB data.
  • the identifier of the RB that supports SDT does not include the RB identifier of the uplink data to be transmitted, it means that the uplink data to be transmitted is not allowed RB data.
  • the identity of the SDT-capable RB can be configured by the network.
  • Whether the data amount of the uplink data to be transmitted meets the data amount threshold includes: whether the data amount of the uplink data to be transmitted is less than the data amount threshold. If the data amount of the uplink data to be transmitted is less than the data amount threshold, it can mean that the uplink data to be transmitted is less than the data amount threshold. The amount of data meets the data amount threshold; if the amount of uplink data to be transmitted is greater than or equal to the data amount threshold, it may mean that the amount of uplink data to be transmitted does not meet the data amount threshold.
  • the terminal equipment When the terminal equipment determines that SDT resources can be used for uplink transmission, it can determine which SDT resources to use (such as CG-SDT resources, four-step random access RA-SDT resources, two-step random access RA-SDT resources) through the following process.
  • SDT resources for uplink transmission: the terminal device determines whether it can use CG-SDT resources. If CG-SDT resources cannot be used, RA-SDT resources are used to send the data to be transmitted.
  • Using RA-SDT resources to send data to be transmitted includes: using RA-SDT resources of four-step random access to send data to be transmitted, or using RA-SDT resources of two-step random access to send data to be transmitted.
  • the network device For example, if the network device only receives the preamble sent by the terminal device, it will fall back to the four-step random access process. At this time, the RA-SDT resource of the two-step random access is used to send the data to be transmitted.
  • the above determination of whether the CG-SDT resource can be used includes: determining whether the TA change of the terminal device is within the valid range. If the location of the terminal device changes greatly, causing the TA to fail, the CG-SDT resource cannot be used and needs to be passed The random access process sends a preamble to obtain a valid TA.
  • step S602 if there is no uplink data to be transmitted, the SDT resource is selected for uplink transmission.
  • the transmitted uplink information may include the paging message received for the terminal device (ie, the paging message in step S601 ) response message.
  • the uplink information transmitted may include a response message for the paging message received by the terminal device, and the to-be-transmitted Upstream data.
  • the absence of uplink data to be transmitted may include: the RRC layer of the terminal device does not receive a request from the upper layer to restore the RRC connection, or the terminal device performs a periodic RNA update process but has no user data or service data to be transmitted.
  • the RRC layer can indicate to the MAC layer that there is no uplink data to be transmitted, and SDT can be used for uplink transmission.
  • the terminal device after the terminal device receives a paging message (such as a first paging message or a second paging message) including instruction information for instructing to perform MT-SDT, when there is uplink data to be transmitted, instead of directly selecting SDT resources for uplink transmission, it first determines whether SDT resources can be used for uplink transmission. In this way, it is helpful to avoid initiating the MT-SDT process when it is inappropriate to initiate the MT-SDT process.
  • a paging message such as a first paging message or a second paging message
  • the terminal device cannot perform uplink transmission through SDT resources, however, if the terminal device does not determine whether it can use SDT resources for uplink transmission, it will use SDT resources for uplink transmission after receiving the paging message, which will cause the non-SDT data to be unable to be transmitted.
  • the terminal device subsequently resends a message to notify the access network device that non-SDT data exists, and the access network device further sends a message to the terminal device to migrate the terminal device from the non-RRC_connected state to the RRC_connected state, and then transmits the non-SDT data, which will cause a longer delay.
  • the terminal device After receiving the paging message (such as the first paging message or the second paging message) including the instruction information for instructing MT-SDT, the terminal device first determines whether it can use SDT resources for uplink transmission, which can solve this problem. .
  • data can be transmitted more than once through SDT resources.
  • the access network device can continue scheduling through dynamic scheduling resources or CG resources that are still in the non-stop state.
  • the terminal device in the RRC_connected state performs uplink and downlink data transmission, and during the process of the terminal device using CG-SDT resources for uplink transmission, new non-SDT data that needs to be transmitted may appear.
  • the terminal device cannot continue to use SDT resources for uplink transmission. transmission, otherwise the non-SDT data will not be transmitted.
  • the terminal device may also perform the following steps:
  • S503 If there is uplink data to be transmitted, determine whether SDT resources can be used for uplink transmission; and/or, if there is no uplink data to be transmitted, select SDT resources for uplink transmission.
  • step S503 For the execution process of step S503, reference can be made to the specific description of step S602 in the corresponding embodiment of FIG. 6, which will not be described again here.
  • the second access network device may also perform the following steps:
  • the second access network device receives the second information from the first access network device.
  • the second information includes the following: One or more items: the data volume of the aforementioned downlink data, the QoS information of the downlink data, and the identification of the RB that supports SDT.
  • the first access network device sends the second information.
  • the second access network device sends a third paging message to the terminal device according to the second information.
  • the third paging message includes the identifier of the terminal device being paged and an instruction for instructing to perform MT-SDT. information.
  • the terminal device receives the third paging message.
  • the second access network device sends a third paging message to the terminal device according to the second information, including: if the identifier of the RB that supports SDT includes the RB identifier of the aforementioned downlink data, then sending the third paging message to the terminal device. Paging message.
  • the second access network device may add instruction information for instructing to perform MT-SDT in the paging message (ie, the third paging message) sent to the terminal device.
  • the second access network device may not add indication information for instructing to perform MT-SDT in the paging message sent to the terminal device.
  • the first access network device can assist the second access network device in determining whether to initiate the MT-SDT process, that is, assisting the second access network device in determining whether it is sending information to the terminal device.
  • Instruction information for instructing to perform MT-SDT is added to the paging message.
  • the first access network device determines to initiate the MT-SDT process, it provides second information to the second access network device to assist it in judging whether to initiate the MT-SDT process.
  • the first access network device and the second access network The equipment all performs the judgment of whether to initiate the MT-SDT process, which can make the judgment results more accurate and help avoid initiating the MT-SDT process when it is not suitable to initiate the MT-SDT process.
  • the first paging message and the second information may be carried in the same message and sent, or may be carried in different messages and sent, which is not limited in the embodiment of the present application.
  • the second access network device may also send a message to the second access network device. The second access network device sends the second information to assist the second access network device in determining whether to initiate the MT-SDT process.
  • the first access network device sends a paging message (such as a first paging message) to the second access network device, and the first access network device sends a paging message to the second access network device.
  • a paging message such as a first paging message
  • the order in which the network device sends the second information is not limited.
  • the first access network device may first send the first paging message to the second access network device, or the first access network device may first send the second information to the second access network device, or, The first access network device may send the first paging message and the second information to the second access network device at the same time.
  • the terminal device may also perform the following steps:
  • S704 If there is uplink data to be transmitted, determine whether to use SDT resources for uplink transmission; and/or, if there is no uplink data to be transmitted, select SDT resources for uplink transmission.
  • step S704 For the execution process of step S704, reference can be made to the specific description of step S602 in the corresponding embodiment of FIG. 6, which will not be described again here.
  • the first paging message carries instruction information for instructing to perform MT-SDT
  • the second access network device can determine that the MT-SDT process can be initiated, so that the second access network device can avoid It is impossible to determine whether to initiate the MT-SDT process, which is conducive to successful paging of the terminal device.
  • the first access network device sends the second information to the second access network device to assist the second access network device in judging whether to initiate the MT-SDT process, which can make the judgment result more accurate and help avoid Initiate the MT-SDT process when it is not appropriate to initiate the MT-SDT process.
  • Figure 8 is a schematic flow chart of another paging method provided by an embodiment of the present application.
  • the corresponding embodiment of Figure 8 mainly describes that the first access network device does not trigger the MT-SDT process or does not trigger the MT-SDT process.
  • the second access network device triggers the MT-SDT process.
  • the paging method may include but is not limited to the following steps:
  • the first access network device sends second information to the second access network device.
  • the second information includes one or more of the following: the amount of downlink data to be transmitted to the terminal device, and the QoS information of the downlink data. , the identification of the RB that supports SDT.
  • the second access network device receives the second information.
  • the first access network device may also send a paging message to the access network device, where the paging message includes the identifier of the paged terminal device.
  • the paging message and the second information may be carried in the same message and sent, or may be carried in different messages and sent. This is not limited in the embodiment of the present application.
  • the first access network device can determine whether to initiate the MT-SDT process. Regardless of whether the first access network device initiates the MT-SDT process, the first access network device The second information may be sent to the second access network device. Alternatively, in the embodiment corresponding to Figure 8, the first access network device may not determine whether to initiate the MT-SDT process.
  • the second access network device sends a fourth paging message to the terminal device according to the second information.
  • the fourth paging message includes the identifier of the paged terminal device and is used to instruct the mobile station to perform called-small packet transmission. MT-SDT instruction information.
  • the terminal device receives the fourth paging message.
  • steps S801 to S802 please refer to the specific description of steps S702 to S703 in the corresponding embodiment in Figure 7, and will not be described again here.
  • the method may also include: the first access network device sending a first paging message to the second access network device, where the first paging message includes the identifier of the paged terminal device and Instruction information used to instruct MT-SDT.
  • the second access network device receives the first paging message from the first access network device.
  • the specific execution process may refer to the description in the embodiment corresponding to Figure 7.
  • the fourth paging message in the embodiment corresponding to Figure 8 and the third paging message in the embodiment corresponding to Figure 7 are the same message.
  • the first access network device sends the second information to the second access network device to assist the second access network device in judging whether to initiate the MT-SDT process, which can improve the accuracy of the judgment result. Higher, which helps avoid initiating the MT-SDT process when it is inappropriate to initiate the MT-SDT process.
  • Figure 9 is a schematic structural diagram of a paging device provided by an embodiment of the present application.
  • the paging device 90 includes a sending unit 901 and a receiving unit 902.
  • the paging device 90 may perform relevant steps of the first access network device and the second access network device in the foregoing method embodiment.
  • the paging device 90 is used to implement the functions of the first access network device in the above embodiment:
  • Sending unit 901 configured to send a first paging message to the second access network device, where the first paging message includes the identifier of the paged terminal device and a message for instructing mobile station called-small packet transmission MT-SDT. Instructions.
  • the receiving unit 902 may be configured to: receive first information from the core network device, where the first information includes quality of service QoS information of downlink data to be transmitted to the terminal device.
  • the sending unit 901 may also be configured to: send second information to the second access network device, where the second information includes one or more of the following: downlink data to be transmitted to the terminal device The amount of data, the QoS information of the downlink data, and the identification of the radio bearer RB that supports SDT.
  • the above downlink data includes predicted data to be transmitted to the terminal device.
  • the sending unit 901 when used to send the first paging message to the second access network device, it is specifically used: if the identity of the RB that supports SDT includes the RB identity of the above-mentioned downlink data, Then the first paging message is sent to the second access network device.
  • the receiving unit 902 may also be configured to: receive capability information from the second access network device, where the capability information is used to indicate whether the cell served by the second access network device supports MT-SDT. .
  • the operations performed by the sending unit 901 and the receiving unit 902 may refer to the introduction about the first access network device in the embodiments corresponding to Figures 4 to 8 above, and will not be described again here.
  • the paging device 90 is used to implement the functions of the second access network device in the embodiments corresponding to Figures 4-7:
  • the receiving unit 902 is configured to receive a first paging message from the first access network device, where the first paging message includes the identification of the paged terminal device and an instruction to perform mobile station called-small packet transmission MT- SDT instructions.
  • the sending unit 901 may be configured to: send a second paging message to the terminal device according to the first paging message, where the second paging message includes the identity of the paged terminal device and Instruction information used to instruct MT-SDT.
  • the receiving unit 902 may also be configured to: receive second information from the first access network device; the second information includes one or more of the following: downlink data to be transmitted to the terminal device.
  • the sending unit 901 can also be used to: send a third paging message to the terminal device according to the second information.
  • the third paging message includes the identifier of the paged terminal device and instruction information for instructing to perform MT-SDT.
  • the above downlink data includes predicted data to be transmitted to the terminal device.
  • the sending unit 901 when the sending unit 901 is configured to send the third paging message to the terminal device according to the second information, specifically: if the identifier of the RB that supports SDT includes the RB identifier of the above-mentioned downlink data , then the third paging message is sent to the terminal device.
  • the sending unit 901 may also be configured to send capability information to the first access network device, where the capability information is used to indicate whether the cell served by the second access network device supports MT-SDT.
  • the operations performed by the sending unit 901 and the receiving unit 902 may refer to the introduction of the second access network device in the embodiments corresponding to Figures 4 to 7 above, and will not be described again here.
  • the paging device 90 is used to implement the functions of the second access network device in the corresponding embodiment of Figure 8:
  • the receiving unit 902 is configured to receive second information from the first access network device.
  • the second information includes one or more of the following: the amount of downlink data to be transmitted to the terminal device, and the quality of service QoS of the downlink data.
  • Information identification of wireless bearer RB that supports small packet transmission SDT;
  • the sending unit 901 is configured to send a fourth paging message to the terminal device according to the second information.
  • the fourth paging message includes the identifier of the paged terminal device and is used to instruct mobile station called-small packet transmission MT- SDT instructions.
  • the receiving unit 902 may also be configured to: receive a first paging message from the first access network device, where the first paging message includes the identifier of the paged terminal device and a method for Instruction information instructing to perform MT-SDT.
  • the above downlink data includes predicted data to be transmitted to the terminal device.
  • the sending unit 901 is configured to send a third message to the terminal device according to the second information.
  • sending a fourth paging message it is specifically used to: if the identifier of the RB supporting SDT includes the RB identifier of the above-mentioned downlink data, send the fourth paging message to the terminal device.
  • the sending unit 901 may also be configured to send capability information to the first access network device, where the capability information is used to indicate whether the cell served by the second access network device supports MT-SDT.
  • the operations performed by the sending unit 901 and the receiving unit 902 may refer to the introduction of the second access network device in the embodiment corresponding to Figure 8 above, and will not be described again here.
  • the paging device 100 includes a receiving unit 1001, a judging unit 1002 and a selecting unit 1003.
  • the paging device 100 may perform the relevant steps of the terminal equipment in the foregoing method embodiments.
  • the receiving unit 1001 is configured to receive a paging message from the access network device, where the paging message includes the identifier of the paged terminal device and instruction information for instructing the mobile station to perform called-small packet transmission MT-SDT;
  • the determination unit 1002 is used to determine whether to use SDT resources for uplink transmission; and/or, if there is no uplink data to be transmitted, the selection unit 1003 is used to select SDT resources for uplink transmission.
  • the judgment unit 1002 is used to judge whether to use SDT resources for uplink transmission, specifically: if the identifier of the RB that supports SDT includes the RB identifier of the uplink data to be transmitted, determine to use SDT resources for uplink transmission.
  • the paging device 100 can also be used to implement the functions of the terminal equipment in the embodiments corresponding to Figures 4 to 8, which will not be described again here.
  • the paging device 110 may include a transceiver 1101 and a processor 1102.
  • the paging device may also include a memory 1103.
  • the transceiver 1101, the processor 1102, and the memory 1103 can be connected through the bus 1104 or other means.
  • the bus is represented by a thick line in Figure 11, and the connection methods between other components are only schematically illustrated and not limited thereto.
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in Figure 11, but it does not mean that there is only one bus or one type of bus.
  • the coupling in the embodiment of this application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information interaction between devices, units or modules.
  • the specific connection medium between the above-mentioned transceiver 1101, processor 1102, and memory 1103 is not limited in the embodiment of the present application.
  • Memory 1103 may include read-only memory and random access memory and provides instructions and data to processor 1102 . A portion of memory 1103 may also include non-volatile random access memory.
  • the processor 1102 can be a central processing unit (Central Processing Unit, CPU).
  • the processor 1102 can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC). ), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor, and optionally, the processor 1102 may also be any conventional processor.
  • the processor in Figure 11 can perform the method performed by the terminal device in any of the above method embodiments.
  • the processor in Figure 11 can execute the method executed by the first access network device in any of the above method embodiments.
  • the processor in Figure 11 can execute the method executed by the second access network device in any of the above method embodiments.
  • the memory 1103 is used to store program instructions; the processor 1102 is used to call the program instructions stored in the memory 1103 to execute the terminal equipment in the corresponding embodiments of Figures 4-8. Steps performed by the first access network device and the second access network device.
  • the functions/implementation processes of the sending unit and receiving unit in Figure 9 can be realized by the processor 1102 in Figure 11 calling the computer execution instructions stored in the memory 1103.
  • the functions/implementation processes of the sending unit and receiving unit in Figure 9 can be implemented by the transceiver 1101 in Figure 11 .
  • the functions/implementation processes of the receiving unit, judging unit and selecting unit in Figure 10 can all be implemented by the processor 1102 in Figure 11 calling the computer execution instructions stored in the memory 1103.
  • the function/implementation process of the judgment unit and selection unit in Figure 10 can be implemented by the processor 1102 in Figure 11 calling the computer execution instructions stored in the memory 1103.
  • the function/implementation process of the receiving unit in Figure 10 can be implemented by Figure 11 Transceiver 1101 in the implementation.
  • a general-purpose computing device such as a computer including a CPU, a random access storage medium (Random Access Memory, RAM), a read-only storage medium (Read-Only Memory, ROM) and other processing elements and storage elements can be used.
  • a computer program (including program code) capable of executing each step involved in the above method is run on the device, and the method provided by the embodiment of the present application is implemented.
  • the computer program can be recorded on, for example, a computer-readable recording medium, loaded into the above-mentioned computing device through the computer-readable recording medium, and run therein.
  • the principles and beneficial effects of the paging device 110 provided in the embodiments of the present application are the same as the principles of solving the problems of the terminal equipment, the first access network equipment, and the second access network equipment in the method embodiments of the present application. Similar to the beneficial effects, please refer to the principles and beneficial effects of the implementation of the method. For the sake of concise description, they will not be repeated here.
  • the aforementioned paging device (such as paging device 90, paging device 100, and paging device 110) may be, for example, a chip or a chip module.
  • An embodiment of the present application also provides a chip that can execute the relevant steps of the terminal device, the first access network device, and the second access network device in the foregoing method embodiment.
  • the chip is used to: send a first paging message to a second access network device, where the first paging message includes an identification of the paged terminal device and an instruction for instructing mobile station called-small packet transmission MT-SDT. information.
  • the chip may also be configured to: receive first information from the core network device, where the first information includes quality of service QoS information of downlink data to be transmitted to the terminal device.
  • the chip can also be used to: send second information to the second access network device, where the second information includes one or more of the following: downlink data to be transmitted to the terminal device.
  • the above downlink data includes predicted data to be transmitted to the terminal device.
  • the chip when used to send the first paging message to the second access network device, specifically Used for: if the identity of the RB supporting SDT includes the RB identity of the downlink data, then sending the first paging message to the second access network device.
  • the chip may also be used to: receive capability information from the second access network device, where the capability information is used to indicate whether the cell served by the second access network device supports MT-SDT.
  • the operations performed by the chip may refer to the introduction about the first access network device in the embodiments corresponding to Figures 4 to 8 above.
  • the chip is used to: receive paging messages from access network equipment.
  • the paging messages include the identification of the paged terminal equipment and the instruction information used to instruct the mobile station to perform the called-small packet transmission MT-SDT; if there is Uplink data to be transmitted is determined whether to use SDT resources for uplink transmission; and/or, if there is no uplink data to be transmitted, SDT resources are selected for uplink transmission.
  • the chip is used to determine whether to use SDT resources for uplink transmission, specifically: if the identification of the RB that supports SDT includes the RB identification of the uplink data to be transmitted, then determine to use SDT resources for upstream transmission.
  • the operations performed by the chip may refer to the introduction of the terminal device in the embodiment corresponding to FIGS. 4-8.
  • the chip is used to: receive a first paging message from a first access network device, where the first paging message includes an identification of the paged terminal device and an instruction to perform mobile station called-small packet transmission MT-SDT. instructions.
  • the chip can also be used to: send a second paging message to the terminal device according to the first paging message, where the second paging message includes the identity of the paged terminal device and Instruction information used to instruct MT-SDT.
  • the chip can also be used to: receive second information from the first access network device; the second information includes one or more of the following: downlink data to be transmitted to the terminal device The amount of data, the quality of service QoS information of the downlink data, and the identification of the wireless bearer RB that supports SDT; and based on the second information, send a third paging message to the terminal device, the third paging message includes the paged terminal The identification of the device and the instruction information used to instruct MT-SDT.
  • the above downlink data includes predicted data to be transmitted to the terminal device.
  • the chip when used to send a third paging message to the terminal device according to the second information, it is specifically used: if the identification of the RB that supports SDT includes the RB identification of the above-mentioned downlink data, Then send the third paging message to the terminal device.
  • the chip can also be used to: send capability information to the first access network device, where the capability information is used to indicate whether the cell served by the second access network device supports MT-SDT.
  • the operations performed by the chip may refer to the introduction of the second access network device in the embodiments corresponding to Figures 4 to 7 above.
  • the chip is used to: receive second information from the first access network device, the second information includes one or more of the following: the data volume of downlink data to be transmitted to the terminal device, the quality of service QoS information of the downlink data ,Support small packet transmission
  • the identifier of the radio bearer RB of SDT and according to the second information, send a fourth paging message to the terminal device, the fourth paging message includes the identifier of the terminal device being paged and is used to instruct the mobile station to be called-small packet Transmit MT-SDT instruction information.
  • the chip can also be used to: receive a first paging message from a first access network device, where the first paging message includes an identification of the paged terminal device and an indication Instructions for performing MT-SDT.
  • the above downlink data includes predicted data to be transmitted to the terminal device.
  • the chip when used to send a fourth paging message to the terminal device according to the second information, it is specifically used: if the identification of the RB that supports SDT includes the RB of the above-mentioned downlink data identification, the fourth paging message is sent to the terminal device.
  • the chip can also be used to: send capability information to the first access network device, where the capability information is used to indicate whether the cell served by the second access network device supports MT-SDT.
  • the operation performed by the chip may refer to the introduction about the second access network device in the embodiment corresponding to FIG. 8 .
  • the above-mentioned chip includes at least one processor, at least one first memory and at least one second memory; wherein the aforementioned at least one first memory and the aforementioned at least one processor are interconnected through lines, and the aforementioned first memory Instructions are stored in the memory; the aforementioned at least one second memory and the aforementioned at least one processor are interconnected through lines, and the aforementioned second memory stores data that needs to be stored in the aforementioned method embodiment.
  • each module contained therein can be implemented in the form of circuits and other hardware, or at least some of the modules can be implemented in the form of software programs, which run on the integrated circuit inside the chip.
  • the processor and the remaining (if any) modules can be implemented in hardware such as circuits.
  • FIG. 12 is a schematic structural diagram of a chip module provided by an embodiment of the present application.
  • the chip module 120 can perform the relevant steps of the terminal device, the first access network device, and the second access network device in the aforementioned method embodiment.
  • the chip module 120 includes: a communication interface 1201 and a chip 1202.
  • the communication interface is used for internal communication of the chip module, or for the chip module to communicate with external equipment; the chip is used to implement the terminal equipment, the first access network equipment, the second access network equipment in the embodiment of the present application.
  • the chip module 120 may also include a storage module 1203 and a power module 1204.
  • the storage module 1203 is used to store data and instructions.
  • the power module 1204 is used to provide power to the chip module.
  • each module included in it can be implemented in the form of hardware such as circuits.
  • Different modules can be located in the same component of the chip module (such as chips, circuit modules, etc.) or Among different components, or at least some of the modules can be implemented in the form of software programs, which run on the processor integrated within the chip module, and the remaining (if any) modules can be implemented in hardware such as circuits.
  • Embodiments of the present application also provide a computer-readable storage medium.
  • One or more instructions are stored in the computer-readable storage medium.
  • the one or more instructions are suitable for the processor to load and execute the method provided by the above method embodiment.
  • Embodiments of the present application also provide a computer program product containing a computer program or instructions.
  • the computer program or instructions When the computer program or instructions are run on a computer, the computer is caused to execute the method provided by the above method embodiments.
  • Embodiments of the present application also provide a paging system, which may include the first access network device and the second access network device in the embodiments corresponding to Figures 4 to 8.
  • the system may also include the terminal device in the embodiment corresponding to Figures 4 to 8.
  • the system may also include the core network equipment in the embodiments corresponding to Figures 4 to 8.
  • each device and product described in the above embodiments may be software modules/units or hardware modules/units, or they may be partly software modules/units and partly hardware modules/units.
  • each module/unit included therein can be implemented in the form of hardware such as circuits, or at least some of the modules/units can be implemented in the form of a software program.
  • the software program Running on the processor integrated inside the chip, the remaining (if any) modules/units can be implemented using circuits and other hardware methods; for various devices and products applied to or integrated into the chip module, each module/unit included in it can They are all implemented in the form of hardware such as circuits.
  • Different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components.
  • at least some modules/units can be implemented in the form of software programs.
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) modules/units can be implemented using circuits and other hardware methods; for each device or product that is applied to or integrated into the terminal, each module it contains /Units can all be implemented in the form of hardware such as circuits, and different modules/units can be located in the same component (for example, chip, circuit module, etc.) or in different components within the terminal, or at least some of the modules/units can be implemented in the form of software programs.
  • the software program runs on the processor integrated inside the terminal, and the remaining (if any) modules/units can be implemented using circuits and other hardware methods.
  • Modules in the device of the embodiment of the present application can be merged, divided, and deleted according to actual needs.
  • the program can be stored in a computer-readable storage medium, and the readable storage medium can Including: flash disk, ROM, RAM, magnetic disk or optical disk, etc.

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Abstract

本申请公开了一种寻呼方法及其装置，应用于通信技术领域。该方法包括：第一接入网设备向第二接入网设备发送第一寻呼消息，该第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。通过这种方式，有利于成功寻呼终端设备。

Description

一种寻呼方法及其装置 技术领域
本申请涉及通信技术领域，尤其涉及一种寻呼方法及其装置。
背景技术
在第三代合作伙伴计划(3rd Generation Partnership Project,即3GPP)新空口(new radio，NR)协议中，终端设备的空口状态包括：无线资源控制空闲(Radio Resource Control_IDLE，RRC_idle)态、RRC连接(RRC_connected)态和RRC非活跃(RRC_inactive)态。其中，终端设备处于RRC_idle态时，终端设备与基站没有连接，需要定期发起位置更新、小区选择重选流程和接收寻呼等。终端设备处于RRC_connected态时，终端设备与网络有连接，基站会进行无线承载(radio bearer，RB)以及物理层等的相关配置，基站可以对终端设备进行上下行数据调度。终端设备处于RRC_inactive态时，终端设备在无线接入网通知区域(Radio access network-based Notification Area，RNA)范围内移动不用通知基站，终端设备可以保留一定配置(例如保留分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)、服务数据适配协议(Service Data Adaptation Protocol，SDAP)等配置)，如果基站需要调度终端设备或终端设备有数据需要发送，则需要迁移到RRC_connected态，恢复保留的配置进行数传。
小包传输(small data transmission，SDT)可以在RRC_inactive态发送或接收数据，而不需要迁移到RRC_connected态。当终端设备通过RRC释放(Release)消息迁移到RRC_inactive态时，网络会配置一些允许使用SDT的条件。将存有终端设备的上下文(context)的基站，或者给终端设备发送RRC Release消息迁移到RRC_inactive态的基站，称为最后服务的基站(last serving gNB)或者锚点基站(anchor gNB)。
终端设备处于RRC_inactive态时，终端设备在RNA范围内移动不用通知基站，如果终端设备移动到其他RNA范围内的基站(如称为基站b)，在移动台被呼(mobile terminated，MT)场景下，基站(如称为基站a)需要通过基站间的Xn接口发送RAN寻呼(paging)消息通知基站b寻呼终端设备。但是，基站b无法确定是否发起MT-SDT寻呼，这样可能导致无法寻呼终端设备。
发明内容
本申请公开了一种寻呼方法及其装置，通过第一寻呼消息，有利于成功寻呼终端设备。
第一方面，本申请实施例提供了一种寻呼方法，应用于第一接入网设备之中，所述方法包括：向第二接入网设备发送第一寻呼消息，第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
在一种可选的实施方式中，该方法还可以包括：接收来自核心网设备的第一信息，该第一信息包括待传输给终端设备的下行数据的服务质量QoS信息。
在一种可选的实施方式中，该方法还可以包括：向第二接入网设备发送第二信息，该 第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、该下行数据的QoS信息、支持SDT的无线承载RB的标识。
在一种可选的实施方式中，上述下行数据包括预测的待传输给终端设备的数据。
在一种可选的实施方式中，上述向第二接入网设备发送第一寻呼消息，具体的实施方式为：若支持SDT的RB的标识中包括上述下行数据的RB标识，则向第二接入网设备发送第一寻呼消息。
在一种可选的实施方式中，该方法还可以包括：接收来自第二接入网设备的能力信息，该能力信息用于指示第二接入网设备服务的小区是否支持MT-SDT。
第二方面，本申请实施例提供了另一种寻呼方法，应用于终端设备之中，所述方法包括：接收来自接入网设备的寻呼消息，该寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息；若存在待传输的上行数据，则判断是否使用SDT资源进行上行传输；和/或，若不存在待传输的上行数据，则选择SDT资源进行上行传输。
在一种可选的实施方式中，上述判断是否使用SDT资源进行上行传输，具体的实施方式为：若支持SDT的RB的标识中包括待传输的上行数据的RB标识，则确定使用SDT资源进行上行传输。
第三方面，本申请实施例提供了又一种寻呼方法，应用于第二接入网设备之中，所述方法包括：接收来自第一接入网设备的第一寻呼消息，该第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
在一种可选的实施方式中，该方法还可以包括：根据第一寻呼消息，向终端设备发送第二寻呼消息，该第二寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。
在一种可选的实施方式中，该方法还可以包括：接收来自第一接入网设备的第二信息；该第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、该下行数据的服务质量QoS信息、支持SDT的无线承载RB的标识；并根据第二信息，向终端设备发送第三寻呼消息，该第三寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。
在一种可选的实施方式中，上述下行数据包括预测的待传输给终端设备的数据。
在一种可选的实施方式中，上述根据第二信息，向终端设备发送第三寻呼消息，具体的实施方式为：若支持SDT的RB的标识中包括上述下行数据的RB标识，则向终端设备发送第三寻呼消息。
在一种可选的实施方式中，该方法还可以包括：向第一接入网设备发送能力信息，该能力信息用于指示第二接入网设备服务的小区是否支持MT-SDT。
第四方面，本申请实施例提供了又一种寻呼方法，应用于第二接入网设备之中，所述方法包括：接收来自第一接入网设备的第二信息，该第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、该下行数据的服务质量QoS信息、支持小包传输SDT的无线承载RB的标识；并根据第二信息，向终端设备发送第四寻呼消息，该第四寻呼消 息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
在一种可选的实施方式中，该方法还可以包括：接收来自第一接入网设备的第一寻呼消息，第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。
在一种可选的实施方式中，上述下行数据包括预测的待传输给终端设备的数据。
在一种可选的实施方式中，上述根据第二信息，向所述终端设备发送第四寻呼消息，具体的实施方式为：若支持SDT的RB的标识中包括上述下行数据的RB标识，则向终端设备发送第四寻呼消息。
在一种可选的实施方式中，该方法还可以包括：向第一接入网设备发送能力信息，该能力信息用于指示第二接入网设备服务的小区是否支持MT-SDT。
第五方面，本申请实施例提供了一种寻呼装置，所述装置包括用于实现第一方面、第二方面、第三方面或第四方面所述的方法的单元。
第六方面，本申请实施例提供另一种寻呼装置，包括处理器；该处理器，用于执行第一方面、第二方面、第三方面或第四方面所述的方法。
在一种可选的实施方式中，该寻呼装置还可以包括存储器；该存储器用于存储计算机程序；处理器，具体用于从该存储器中调用计算机程序，执行第一方面、第二方面、第三方面或第四方面所述的方法。
第七方面，本申请实施例提供一种芯片，该芯片用于执行第一方面、第二方面、第三方面或第四方面所述的方法。
第八方面，本申请实施例提供一种芯片模组，该芯片模组包括通信接口和芯片，其中：通信接口用于进行芯片模组内部通信，或者用于该芯片模组与外部设备进行通信；该芯片用于执行第一方面、第二方面、第三方面或第四方面所述的方法。
第九方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序包括程序指令，所述程序指令当被处理器执行时使所述处理器执行如第一方面、第二方面、第三方面或第四方面所述的方法。
第十方面，本申请实施例提供一种包括计算机程序或指令的计算机程序产品，当计算机程序或指令在计算机上运行时，使得计算机执行如第一方面、第二方面、第三方面或第四方面所述的方法。
通过本申请实施例，在第一寻呼消息中携带用于指示进行MT-SDT的指示信息，第二接入网设备可以确定可发起MT-SDT流程，这样可以避免第二接入网设备无法确定是否发起MT-SDT流程的情况发生，从而有利于成功寻呼终端设备。
附图说明
图1是本申请实施例提供的一种通信系统的架构示意图；
图2是本申请实施例提供的一种四步随机接入的流程示意图；
图3是本申请实施例提供的一种两步随机接入的流程示意图；
图4是本申请实施例提供的一种寻呼方法的流程示意图；
图5是本申请实施例提供的另一种寻呼方法的流程示意图；
图6是本申请实施例提供的又一种寻呼方法的流程示意图；
图7是本申请实施例提供的又一种寻呼方法的流程示意图；
图8是本申请实施例提供的又一种寻呼方法的流程示意图；
图9是本申请实施例提供的一种寻呼装置的结构示意图；
图10是本申请实施例提供的另一种寻呼装置的结构示意图；
图11是本申请实施例提供的又一种寻呼装置的结构示意图；
图12是本申请实施例提供的一种芯片模组的结构示意图。
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清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作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。
请参见图1，图1为本申请实施例提供的一种通信系统的架构示意图。该通信系统可包括但不限于一个第一接入网设备、一个第二接入网设备和一个终端设备，图1所示的设备数量和形态用于举例并不构成对本申请实施例的限定，实际应用中可以包括两个或两个以上的第一接入网设备、第二接入网设备，两个或两个以上的终端设备。图1所示的通信系统以包括一个第一接入网设备101、一个第二接入网设备102和一个终端设备103为例。
其中，本申请实施例中终端设备是一种具有无线收发功能的设备，可以称之为终端(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、接入终端设备、车载终端设备、工业控制终端设备、UE单元、UE站、移动站、远方站、远程终端设备、移动设备、UE终端设备、无线通信设备、UE代理或UE装置等。终端设备可以是固定的或者移动的。需要说明的是，终端设备可以支持至少一种无线通信技术，例如长期演进(long time evolution，LTE)、新空口(new radio，NR)、宽带码分多址(wideband code division multiple access，WCDMA)等。例如，终端设备可以是手机(mobile phone)、平板电脑(pad)、台式机、笔记本电脑、一体机、车载终端、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、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、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、个人数字助理(personal digital assistant，PDA)、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、可穿戴设备、未来移动通信网络中的终端设备或者未来演进的公共移动陆地网络(public land mobile network，PLMN)中的终端设备等。在本申请的一些实施例中，终端设备还可以是具有收发功能的装置，例如芯片模组。其中，芯片模组可以包括芯片，还可以包括其它分立器件。本申请的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
本申请实施例中接入网(access network，AN)设备(如第一接入网设备、第二接入网设备)是一种为终端设备提供无线通信功能的设备，接入网设备可以为无线接入网(radio access network，RAN)设备。其中，接入网设备可以支持至少一种无线通信技术，例如LTE、NR、WCDMA等。示例的，接入网设备包括但不限于：第五代移动通信系统(5th-generation，5G)中的下一代基站(generation nodeB，gNB)、演进型节点B(evolved node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved node B、或home node B，HNB)、基带单元(baseband unit，BBU)、TRP、发射点(transmitting point，TP)、移动交换中心等。接入网设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器、集中单元(centralized unit，CU)和/或分布单元(distributed unit，DU)。在一些实施例中，接入网设备还可以为具有为终端设备提供无线通信功能的装置，例如芯片模组。示例的，芯片模组可以包括芯片，还可以包括其它分立器件。本申请的实施例对接入网设备所采用的具体技术和具体设备形态不做限定。
需要说明的是，本申请实施例的技术方案可以应用于各种通信系统。例如：LTE通信系统、第4代(4th generation，4G)移动通信系统、5G移动通信系统、5G NR系统。可选的，本申请实施例的方法还适用于未来的各种通信系统，例如6G系统或者其他通信网络等。
可选的，图1所示通信系统还可以包括核心网设备(图1未示出)。核心网设备可具有如下功能：提供宽带接入服务、实现多种业务的汇聚与转发，满足不同用户对传输容量和带宽利用率的要求，用来终结和管理用户的以太网上的点对点协议(Point-to-Point Protocol Over Ethernet，PPPoE)/IPoE会话，提供认证服务、授权服务或计费服务。终端设备103可通过接入网设备接入无线网络，并通过核心网设备在核心网中注册。
其中，核心网设备可以包括但不限于：移动管理网元、用户面网元和会话管理网元等。在NR系统中，移动管理网元可以为接入和移动性管理功能(access and mobility management function，AMF)网元，用户面网元可以是用户面功能(user plane function，UPF)网元，会话管理网元可以为会话管理功能(session management function，SMF)网元。其中，移动管理网元为非接入层(non-access stratum，NAS)信令的终结点，主要负责用户的接入认证和移动性管理。终端设备与AMF可以通过N1NAS消息进行通信，终端设备与AMF之间的通信消息也可以通过RAN的N2消息进行中转。RAN与AMF通过N2消息进行通信。用户面网元，用于对用户报文进行处理，例如转发、计费等。会话管理网元，负责会话管理，如用户的会话建立、删除，维护协议数据单元(protocol data unit，PDU)会话上下文及用户面转发管道信息等。其中，N1表示AMF网元与终端设备之间的接口，N2表示AMF网元与RAN设备之间的接口。
可以理解的是，本申请实施例描述的通信系统是为了更加清楚的说明本申请实施例的技术方案，并不构成对本申请实施例提供的技术方案的限定，本领域技术人员可知，随着系统架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
为了更好地理解本申请实施例提供的技术方案，首先对本申请实施例涉及的技术术语进行介绍。
(1)随机接入过程
终端设备在非RRC_connected态如果需要发起数传，需要通过随机接入过程迁移到RRC_connected态。随机接入过程是指从用户发送随机接入前导码(preamble)，开始尝试接入网络到与网络间建立起基本的信令连接之前的过程。preamble，可用于随机接入时网络设备识别终端设备的身份，或者用于网络设备区分发起随机接入的设备，也可以用作其它用途，本申请实施例中不做限定。随机接入过程包括四步随机接入和两步随机接入。其中，四步随机接入可以包括消息1(又称为Msg1)、消息2(又称为Msg2)、消息3(又称为Msg3)以及消息4(又称为Msg4)四个消息，四步随机接入过程的流程示意图如图2所示。
首先，终端设备在物理随机接入信道时机(Physical Random Access Channel occasion，RO)上发送Msg1，Msg1包括preamble。
其次，网络设备接收到preamble之后，生成针对preamble的随机接入响应(Random Access Response，RAR)并发送RAR(RAR又可以称之为Msg2)。RAR承载于物理下行共享信道(Physical Downlink shared channel，PDSCH)，该PDSCH由物理下行控制信道(Physical Downlink Control Channel，PDCCH)调度，该PDCCH用随机接入无线网络临时标识(Random Access Radio Network Temporary Identifier，RA-RNTI)加扰。
RAR包括以下一项或多项：定时提前命令(Timing Advance Command，TAC)、上行授权(uplink grant，UL grant)、临时小区无线网络临时标识(Temporary Cell Radio Network Temporary Identifier，TC-RNTI)。其中，TAC携带TA信息。UL grant携带终端设备发送Msg3的调度信息。没有小区无线网络临时标识(Cell Radio Network Temporary Identifier，C-RNTI)的终端设备，可通过TC-RNTI接收Msg4。
随机接入过程的前两步主要完成了上行的时间同步。多个终端设备可能选择相同的RO和preamble发起随机接入过程，这样会产生冲突，随机接入过程的后两步可以进行冲突解决，为终端设备指定一个唯一且合法的身份，用于后续的数据传输。
终端设备发送Msg1后，监听由RA-RNTI加扰的PDCCH，以接收RAR。接收到RAR后，发送Msg3，Msg3承载于物理上行共享信道(Physical uplink shared channel，PUSCH)。对于非RRC_connected态的终端设备，发送RRC公共控制信道(Common Control Channel，CCCH)。
最后，网络设备接收到终端设备发送的PUSCH之后，如果该终端设备在冲突解决中胜出，生成针对PUSCH的响应(即Msg4)，Msg4承载于PDSCH。在Msg4中携带该用于唯一标识终端设备的标志(竞争解决标识(Contention Resolution Identity，CRID))以指示胜出的终端设备，而其它没有在冲突解决中胜出的终端设备将重新发起随机接入。如果终端设备在Msg4中接收到的PDSCH由RAR消息中指定的TC-RNTI加扰，则当成功解码出的CRID与Msg3发送的CCCH中的信息匹配时，终端设备会认为随机接入成功并将自己的TC-RNTI转化为C-RNTI。
两步随机接入由消息A(又称为MsgA)、消息B(又称为MsgB)组成，两步随机接入过程的流程示意图如图3所示。
其中，MsgA包括Msg1和Msg3，即包括在PRACH上发送的preamble和PUSCH上发送的有效载荷(payload)。MsgB包括Msg2和Msg4。如果网络设备只收到终端设备发送的preamble，则回复四步随机接入过程的RAR，终端设备回退到四步随机接入过程。
(2)随机接入-SDT(random access channel-SDT，RA-SDT)、配置授权-SDT(configured grant-SDT，CG-SDT)
SDT包括两种发送方式：RA-SDT、CG-SDT。
其中，RA-SDT是指在四步随机接入过程的Msg3中除了发送RRC消息还可以携带数据(data)的发送方式，或者，RA-SDT是指在两步随机接入过程的MsgA中除了发送RRC消息还可以携带数据的发送方式。
CG-SDT是指网络给终端设备预配专用的CG Type 1资源，终端设备使用该资源进行传输拥有有效的TA，不需要发送preamble可直接发送数据的方式。与四步随机接入过程相比，CG-SDT减少了Msg1和Msg2两个步骤。
当终端设备通过RRC释放(Release)消息迁移到RRC_inactive态时，网络会配置一些允许使用SDT的条件。示例性的，配置数据量门限、允许使用SDT的无线承载(radio bearer，RB)，包括信令无线承载(Signaling radio bearer，SRB)和数据无线承载(Data radio bearer,DRB)。在本申请实施例，允许使用SDT的RB还可以描述为支持SDT的RB。
若使用CG-SDT，还可以配置如下参数：CG资源、RSRP变化的门限范围、SSB使用的信号门限。需要说明的是，CG-SDT只在收到RRC Release消息的小区使用，一旦小区重选到新小区，终端设备会释放对应的CG资源。可选的，在不同小区中使用CG-SDT，如下参数可能会不同：RSRP变化的门限范围，SSB使用的信号门限。
若使用RA-SDT，还可以配置RSRP门限。RA-SDT的资源通过每个小区的系统消息配置，可选的，不同小区配置的RSRP门限可以不同。
请参见图4，为本申请实施例提供的一种寻呼方法的流程示意图。图4对应实施例主要描述了第一接入网设备如何触发MT-SDT流程，进一步还描述了第二接入网设备如何触发MT-SDT流程。如图4所示，该寻呼方法可以包括但不限于如下步骤：
S401、第一接入网设备向第二接入网设备发送第一寻呼消息，该第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。相应的，第二接入网设备接收来自第一接入网设备的第一寻呼消息。
其中，该终端设备可以处于非RRC_connected态，非RRC_connected态可以指RRC_idle态或RRC_inactive态。在本申请实施例中，用于指示进行MT-SDT的指示信息还可以描述为：用于指示进行增强寻呼的指示信息。该第一寻呼消息包括用于指示进行MT-SDT的指示信息或者用于指示进行增强寻呼的指示信息表示：第一接入网设备确定可以发起MT-SDT流程。发起MT-SDT流程表示处于非RRC_connected态的终端设备可以使用SDT资源进行上行传输。发起MT-SDT流程还可以描述为发起MT-SDT寻呼或者发起增强寻呼。通过在第一寻呼消息中携带用于指示进行MT-SDT的指示信息，第二接入网设备可以确定 可发起MT-SDT流程，这样可以避免第二接入网设备由于没有终端设备的配置信息(例如，终端设备是否允许使用SDT的RB配置信息)，而无法确定是否发起MT-SDT流程的情况发生，从而有利于成功寻呼终端设备。在本申请实施例中，终端设备使用SDT资源进行上行传输包括：终端设备使用SDT资源传输上行数据和/或信令，其中，该上行数据可以指终端设备中待传输的有用数据、业务数据或用户数据，该信令可以包括用于响应该终端设备接收到的寻呼消息的信令。
示例性的，如图1所示的通信系统中，若处于非RRC_connected态的终端设备103对应的最后服务的接入网设备(或称为锚点接入网设备)为第一接入网设备101，且终端设备103从RNA范围内移动至其他RNA范围内的接入网设备(如第二接入网设备102)，此时，若需要寻呼终端设备103，那么第一接入网设备101需要通过Xn接口向第二接入网设备102发送寻呼消息，以指示第二接入网设备102寻呼终端设备103。但是，第二接入网设备102不知道终端设备103迁移到RRC_inactive态时网络针对其配置的允许使用SDT的条件，那么第二接入网设备102也就无法判断能否发起针对终端设备103的MT-SDT流程。例如，允许使用SDT的RB(即允许使用SDT的一种条件)的配置信息只有终端设备103对应的最后服务的接入网设备(第一接入网设备101)知道，而第二接入网设备102不知道，所以第二接入网设备102无法判断能否发起针对终端设备103的MT-SDT流程。通过在第一寻呼消息中携带用于指示进行MT-SDT的指示信息，第二接入网设备可以确定可发起MT-SDT流程，这样可以避免第二接入网设备无法确定是否发起MT-SDT流程的情况发生。
其中，第一寻呼消息可以通过第一接入网设备与第二接入网设备之间的Xn接口传输，第一寻呼消息为Xn RAN Paging消息。
在一种实现方式中，第一接入网设备可以接收来自核心网设备的第一信息，该第一信息包括待传输给终端设备的下行数据的服务质量(Quality of Service，QoS)信息。该下行数据的QoS信息可以包括以下一项或多项：该下行数据的QoS流(flow)信息、时延需求、数据包大小以及该下行数据业务相关的信息。该下行数据的QoS flow信息可以包括QoS flow标识。可选的，该下行数据可以包括预测的待传输给该终端设备的数据，和/或，确定待传输给该终端设备的数据。可选的，该第一信息还可以包括待传输给终端设备的下行数据。
在一种实现方式中，在步骤S401之前，第一接入网设备可以根据第一信息判断是否发起MT-SDT流程，第一接入网设备根据第一信息判断是否发起MT-SDT流程包括：判断支持SDT的RB的标识中是否包括该下行数据的RB标识，若支持SDT的RB的标识中包括该下行数据的RB标识，则确定发起MT-SDT流程。若支持SDT的RB的标识中不包括该下行数据的RB标识，则可以不发起MT-SDT流程。其中，确定发起MT-SDT流程的情况下，第一接入网设备在向第二接入网设备发送的寻呼消息(即第一寻呼消息)中添加用于指示进行MT-SDT的指示信息。可选的，第一接入网设备向第二接入网设备发送第一寻呼消息，包括：若支持SDT的RB的标识中包括该下行数据的RB标识，则第一接入网设备向第二接入网设备发送第一寻呼消息。确定不发起MT-SDT流程的情况下，第一接入网设备在向第二接入网设备发送的寻呼消息中可以不添加用于指示进行MT-SDT的指示信息。
其中，该下行数据的RB标识根据该下行数据的QoS信息确定。具体的，第一接入网设备可通过如下方式确定该下行数据的RB标识：在Qos flow标识与RB标识间的映射关系中，与该下行数据的Qos flow标识相映射的RB标识为该下行数据的RB标识。
可选的，该第一信息除了包括下行数据的QoS信息以外，还可以包括该下行数据的数据量，其中该下行数据的数据量可以包括：现有待传输给终端设备的下行数据的数据量，和/或，预测的待传输给终端设备的下行数据的数据量。核心网设备通过通知第一接入网设备下行数据的数据量，可以辅助第一接入网设备判断是否发起MT-SDT流程。
可选的，本申请实施例中的核心网设备可以为移动管理网元(如AMF)或用户面网元(如UPF)。
在一种实现方式中，第一接入网设备在向第二接入网设备发送第一寻呼消息之前，两者可以交互服务的小区是否支持MT-SDT。具体的，第二接入网设备向第一接入网设备发送能力信息，该能力信息用于指示第二接入网设备服务的小区是否支持MT-SDT。相应的，第一接入网设备接收该能力信息。可选的，第一接入网设备和第二接入网设备可以在Xn建立(setup)流程中交互服务的小区是否支持MT-SDT。示例性的，以在Xn setup流程中交互第二接入网设备服务的小区是否支持MT-SDT为例，第一接入网设备可以向第二接入网设备发送请求消息，该请求消息请求获取前述能力信息，第二接入网设备向第一接入网设备发送响应消息，该响应消息包括该能力信息。其中，该请求消息可以为Xn setup request消息，响应消息可以为Xn setup response消息。可选的，可以通过Xn setup request和Xn setup response中的服务小区信息(Served Cell Information)NR字段指示该能力信息，或者，在Xn setup request和Xn setup response中扩展新字段以用于指示该能力信息。
可选的，参见图5，第二接入网设备在接收到来自第一接入网设备的第一寻呼消息之后(即步骤S401之后)，还可以执行如下步骤：
S502：第二接入网设备根据第一寻呼消息，向终端设备发送第二寻呼消息，该第二寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。相应的，该终端设备接收该第二寻呼消息。
第二接入网设备获知第一寻呼消息中包含用于指示进行MT-SDT的指示信息，该第二接入网设备向终端设备发送第二寻呼消息，即发起MT-SDT流程。需要说明的是，第一寻呼消息与第二寻呼消息中携带的信息可以相同，但是第一寻呼消息与第二寻呼消息不同，即接入网设备间传输的RAN paging消息与接入网设备向终端设备发送的paging消息不同。
参见图6，图6对应实施例主要描述终端设备接收到来自接入网设备的寻呼消息后，如何判断能否使用SDT资源进行上行传输，图6所示的寻呼方法包括但不限于步骤S601-S602。
S601：接入网设备向终端设备发送寻呼消息，该寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。相应的，终端设备接收来自该接入网设备的寻呼消息。
其中，S601中的接入网设备可以为第一接入网设备或者第二接入网设备。示例性的，S601中的接入网设备为第一接入网设备的情况下，S601中的寻呼消息可以为上述第一寻呼 消息，这种情况下，第一接入网设备直接向终端设备发送寻呼消息，而不用经过第二接入网设备。可以理解的是，这种情况下该终端设备处于第一接入网设备的覆盖范围内。关于第一寻呼消息的内容可参见图4对应实施例中步骤S401中的具体描述，此处不再赘述。示例性的，S601中的接入网设备为第二接入网设备的情况下，S601中的寻呼消息可以为上述第二寻呼消息，或者，S601中的寻呼消息可以为下文中的第三寻呼消息或第四寻呼消息。这种情况下，第一接入网设备可通过第二接入网设备间接地向终端设备发送寻呼消息。关于第二寻呼消息、第三寻呼消息、第四寻呼消息的内容可参见图5对应实施例中步骤S502、图7对应实施例中步骤S703、图8对应实施例中步骤S802中的具体描述，此处不再赘述。
S602：若存在待传输的上行数据，则终端设备判断能否使用SDT资源进行上行传输；和/或，若不存在待传输的上行数据，则终端设备选择SDT资源进行上行传输。
可选的，判断能否使用SDT资源进行上行传输，包括：若支持SDT的RB的标识中包括待传输的上行数据的RB标识，则确定使用SDT资源进行上行传输。可选的，若支持SDT的RB的标识中不包括待传输的上行数据的RB标识，则可以不使用SDT资源进行上行传输，示例性的，可使用非SDT的RACH资源进行上行传输。换言之，若待传输的上行数据是允许的RB数据，则确定可使用SDT资源进行上行传输；若待传输的上行数据不是允许的RB数据，则可不使用SDT资源进行上行传输。
或者，判断能否使用SDT资源进行上行传输，包括：判断支持SDT的RB的标识中是否包括待传输的上行数据的RB标识，并判断待传输的上行数据的数据量是否满足数据量门限。若支持SDT的RB的标识中包括待传输的上行数据的RB标识，且待传输的上行数据的数据量满足数据量门限，则确定可使用SDT资源进行上行传输。若支持SDT的RB的标识中不包括待传输的上行数据的RB标识，和/或，待传输的上行数据的数据量不满足数据量门限，则确定不能使用SDT资源进行上行传输。其中，若支持SDT的RB的标识中包括待传输的上行数据的RB标识，则表示待传输的上行数据是允许的RB数据。若支持SDT的RB的标识中不包括待传输的上行数据的RB标识，则表示待传输的上行数据不是允许的RB数据。支持SDT的RB的标识可以由网络配置。待传输的上行数据的数据量是否满足数据量门限包括：待传输的上行数据的数据量是否小于数据量门限，若待传输的上行数据的数据量小于数据量门限，则可以表示待传输的上行数据的数据量满足数据量门限；若待传输的上行数据的数据量大于或等于数据量门限，则可以表示待传输的上行数据的数据量不满足数据量门限。
终端设备确定可使用SDT资源进行上行传输的情况下，可通过如下过程确定采用何种SDT资源(如CG-SDT资源、四步随机接入的RA-SDT资源、两步随机接入的RA-SDT资源)进行上行传输：终端设备判断能否使用CG-SDT资源。若不能使用CG-SDT资源，则使用RA-SDT资源发送待传数据。使用RA-SDT资源发送待传数据包括：使用四步随机接入的RA-SDT资源发送待传数据，或者，使用两步随机接入的RA-SDT资源发送待传数据。例如，若网络设备只收到终端设备发送的preamble，则回退到四步随机接入过程，此时，使用两步随机接入的RA-SDT资源发送待传数据。示例性的，上述判断能否使用CG-SDT资源包括：判断终端设备的TA变化是否在有效范围内，若终端设备的位置改变很大，导致TA失效，则不能使用CG-SDT资源，需要通过随机接入过程发送preamble获得有效的TA。
步骤S602中，不存在待传输的上行数据的情况下，选择SDT资源进行上行传输，此时，传输的上行信息可以包括针对该终端设备接收到的寻呼消息(即步骤S601中的寻呼消息)的响应消息。存在待传输的上行数据的情况下，若判断结果为可使用SDT资源进行上行传输，此时，传输的上行信息可以包括针对该终端设备接收到的寻呼消息的响应消息，以及该待传输的上行数据。可选的，不存在待传输的上行数据可以包括：终端设备的RRC层没有收到上层请求恢复RRC连接的请求，或者，终端设备进行周期RNA更新的流程但没有用户数据或业务数据待传输。此时RRC层可以给MAC层指示不存在待传输的上行数据，可以使用SDT进行上行传输。
在一些实施例中，终端设备接收到包括用于指示进行MT-SDT的指示信息的寻呼消息(如第一寻呼消息或第二寻呼消息)后，在存在待传输的上行数据的情况下，并非直接选择SDT资源进行上行传输，而是先判断能否使用SDT资源进行上行传输。通过这种方式，有利于避免在不适合发起MT-SDT流程的情况下发起MT-SDT流程。
示例性的，若终端设备中存在的待传输的上行数据包括non-SDT数据，该non-SDT数据是指不能通过SDT资源进行传输的数据，此时，终端设备不能通过SDT资源进行上行传输，但是若终端设备并未判断能否使用SDT资源进行上行传输，就会在接收到寻呼消息后使用SDT资源进行上行传输，这样会导致该non-SDT数据无法传输。或者，终端设备后续重新发送消息通知接入网设备存在non-SDT数据，该接入网设备进一步向终端设备发送消息以将终端设备由非RRC_connected态迁移至RRC_connected态，然后再传输该non-SDT数据，这样会造成较长时延。终端设备接收到包括用于指示进行MT-SDT的指示信息的寻呼消息(如第一寻呼消息或第二寻呼消息)后，先判断能否使用SDT资源进行上行传输，可以解决该问题。
示例性的，在NR系统中，通过SDT资源可以传输不止一次数据，终端设备在使用CG-SDT资源发送第一个数据后，接入网设备可以通过动态调度资源或CG资源继续调度仍处于非RRC_connected态的终端设备进行上下行数据传输，且在终端设备使用CG-SDT资源进行上行传输的过程中，可能新出现需要传输的non-SDT数据，此时，终端设备不能继续通过SDT资源进行上行传输，否则将无法传输该non-SDT数据。终端设备通过判断能否使用SDT资源进行上行传输，有利于避免在不适合使用SDT资源进行上行传输的情况下使用SDT资源进行上行传输，从而有利于避免资源浪费以及确保更好地进行数据传输。
可选的，终端设备接收到来自第二接入网设备的第二寻呼消息(即步骤S502)后，还可以执行如下步骤：
S503(可选的)：若存在待传输的上行数据，则判断能否使用SDT资源进行上行传输；和/或，若不存在待传输的上行数据，则选择SDT资源进行上行传输。
需要说明的是，步骤S503的执行过程可参见图6对应实施例中步骤S602的具体描述，此处不再赘述。
可选的，参见图7，第二接入网设备在接收到来自第一接入网设备的第一寻呼消息之后(即步骤S401之后)，还可以执行如下步骤：
S702：第二接入网设备接收来自第一接入网设备的第二信息，该第二信息包括以下一 项或多项：前述下行数据的数据量、下行数据的QoS信息、支持SDT的RB的标识。相应的，第一接入网设备发送该第二信息。
S703：第二接入网设备根据第二信息，向该终端设备发送第三寻呼消息，该第三寻呼消息包括被寻呼的该终端设备的标识以及用于指示进行MT-SDT的指示信息。相应的，该终端设备接收该第三寻呼消息。
可选的，第二接入网设备根据第二信息，向终端设备发送第三寻呼消息，包括：若支持SDT的RB的标识中包括前述下行数据的RB标识，则向终端设备发送第三寻呼消息。换言之，若前述下行数据是允许的RB数据，则第二接入网设备可以在向终端设备发送的寻呼消息(即第三寻呼消息)中添加用于指示进行MT-SDT的指示信息。可选的，若支持SDT的RB的标识中包括前述下行数据的RB标识，则第二接入网设备可以不在向终端设备发送的寻呼消息中添加用于指示进行MT-SDT的指示信息。
第一接入网设备通过向第二接入网设备发送第二信息，可以辅助第二接入网设备判断是否发起MT-SDT流程，即辅助第二接入网设备判断是否在向终端设备发送的寻呼消息中添加用于指示进行MT-SDT的指示信息。第一接入网设备确定发起MT-SDT流程的情况下，向第二接入网设备提供第二信息以辅助其判断是否发起MT-SDT流程，第一接入网设备和第二接入网设备均执行是否发起MT-SDT流程的判断，可以使得判断结果的准确度更高，有利于避免在不适合发起MT-SDT流程的情况下发起MT-SDT流程。
需要说明的是，第一寻呼消息和第二信息可以携带于同一消息中发送，也可以携带于不同消息中发送，本申请实施例对此不做限定。可选的，在第一接入网设备向第二接入网设备发送的寻呼消息中不携带用于指示进行MT-SDT的指示信息的情况下，该第二接入网设备也可以向第二接入网设备发送第二信息以辅助第二接入网设备判断是否发起MT-SDT流程。还需要说明的是，本申请实施例对第一接入网设备向第二接入网设备发送寻呼消息(如第一寻寻呼消息)，和第一接入网设备向第二接入网设备发送第二信息的执行顺序不做限定。示例性的，第一接入网设备可以先向第二接入网设备发送第一寻呼消息，或者，第一接入网设备可以先向第二接入网设备发送第二信息，或者，第一接入网设备可以同时向第二接入网设备发送第一寻呼消息和第二信息。
可选的，终端设备接收到来自第二接入网设备的第三寻呼消息后，还可以执行如下步骤：
S704(可选的)：若存在待传输的上行数据，则判断是否使用SDT资源进行上行传输；和/或，若不存在待传输的上行数据，则选择SDT资源进行上行传输。
需要说明的是，步骤S704的执行过程可参见图6对应实施例中步骤S602的具体描述，此处不再赘述。
通过实施本申请实施例，在第一寻呼消息中携带用于指示进行MT-SDT的指示信息，第二接入网设备可以确定可发起MT-SDT流程，这样可以避免第二接入网设备无法确定是否发起MT-SDT流程的情况发生，从而有利于成功寻呼终端设备。另外，第一接入网设备通过向第二接入网设备发送第二信息，以辅助第二接入网设备判断是否发起MT-SDT流程，可以使得判断结果的准确度更高，有利于避免在不适合发起MT-SDT流程的情况下发起MT-SDT流程。
请参见图8，为本申请实施例提供的另一种寻呼方法的流程示意图，图8对应实施例主要描述了第一接入网设备不触发MT-SDT流程或未触发MT-SDT流程，而由第二接入网设备触发MT-SDT流程。如图8所示，该寻呼方法可以包括但不限于如下步骤：
S801、第一接入网设备向第二接入网设备发送第二信息，该第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、该下行数据的QoS信息、支持SDT的RB的标识。相应的，第二接入网设备接收该第二信息。
可选的，第一接入网设备还可以向接入网设备发送寻呼消息，该寻呼消息包括被寻呼的终端设备的标识。该寻呼消息和第二信息可以携带于同一消息中发送，也可以携带于不同消息中发送，本申请实施例对此不做限定。需要说明的是，在图8对应实施例中，第一接入网设备可以判断是否发起MT-SDT流程，无论第一接入网设备是否发起MT-SDT流程，该第一接入网设备均可以向第二接入网设备发送第二信息。或者，在图8对应实施例中，第一接入网设备也可以不判断是否发起MT-SDT流程。
S802、第二接入网设备根据第二信息，向终端设备发送第四寻呼消息，该第四寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。相应的，终端设备接收该第四寻呼消息。
需要说明的是，步骤S801～步骤S802的执行过程可参见图7对应实施例中步骤S702～步骤S703的具体描述，此处不再赘述。
可选的，在S801之前，该方法还可以包括：第一接入网设备向第二接入网设备发送第一寻呼消息，该第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。相应的，第二接入网设备接收来自第一接入网设备的第一寻呼消息。具体执行过程可参见图7对应实施例中的描述，此时，图8对应实施例中的第四寻呼消息与图7对应实施例中的第三寻呼消息为同一消息。
在实施本申请实施例中，第一接入网设备通过向第二接入网设备发送第二信息，以辅助第二接入网设备判断是否发起MT-SDT流程，可以使得判断结果的准确度更高，有利于避免在不适合发起MT-SDT流程的情况下发起MT-SDT流程。
请参阅图9，图9是本申请实施例提供的一种寻呼装置的结构示意图。如图9所示，该寻呼装置90包括发送单元901和接收单元902。寻呼装置90可以执行前述方法实施例中第一接入网设备、第二接入网设备的相关步骤。
对于寻呼装置90用于实现上述实施例中第一接入网设备的功能的情况：
发送单元901，用于向第二接入网设备发送第一寻呼消息，第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
在一种可选的实施方式中，接收单元902可以用于：接收来自核心网设备的第一信息，该第一信息包括待传输给终端设备的下行数据的服务质量QoS信息。
在一种可选的实施方式中，发送单元901还可以用于：向第二接入网设备发送第二信息，该第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、该下行数据的QoS信息、支持SDT的无线承载RB的标识。
在一种可选的实施方式中，上述下行数据包括预测的待传输给终端设备的数据。
在一种可选的实施方式中，发送单元901用于向第二接入网设备发送第一寻呼消息时，具体用于：若支持SDT的RB的标识中包括上述下行数据的RB标识，则向第二接入网设备发送第一寻呼消息。
在一种可选的实施方式中，接收单元902还可以用于：接收来自第二接入网设备的能力信息，该能力信息用于指示第二接入网设备服务的小区是否支持MT-SDT。
具体的，在这种情况中，发送单元901、接收单元902所执行的操作可以参照上述图4-图8对应的实施例中有关第一接入网设备的介绍，此处不再赘述。
对于寻呼装置90用于实现图4-图7对应实施例中第二接入网设备的功能的情况：
接收单元902，用于接收来自第一接入网设备的第一寻呼消息，该第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
在一种可选的实施方式中，发送单元901可以用于：根据第一寻呼消息，向终端设备发送第二寻呼消息，该第二寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。
在一种可选的实施方式中，接收单元902还可以用于：接收来自第一接入网设备的第二信息；该第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、该下行数据的服务质量QoS信息、支持SDT的无线承载RB的标识；发送单元901还可以用于：根据第二信息，向终端设备发送第三寻呼消息，该第三寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。
在一种可选的实施方式中，上述下行数据包括预测的待传输给终端设备的数据。
在一种可选的实施方式中，发送单元901用于根据第二信息，向终端设备发送第三寻呼消息时，具体用于：若支持SDT的RB的标识中包括上述下行数据的RB标识，则向终端设备发送第三寻呼消息。
在一种可选的实施方式中，发送单元901还可以用于：向第一接入网设备发送能力信息，该能力信息用于指示第二接入网设备服务的小区是否支持MT-SDT。
具体的，在这种情况中，发送单元901、接收单元902所执行的操作可以参照上述图4-图7对应的实施例中有关第二接入网设备的介绍，此处不再赘述。
对于寻呼装置90用于实现图8对应实施例中第二接入网设备的功能的情况：
接收单元902，用于接收来自第一接入网设备的第二信息，该第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、该下行数据的服务质量QoS信息、支持小包传输SDT的无线承载RB的标识；
发送单元901，用于根据第二信息，向终端设备发送第四寻呼消息，该第四寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
在一种可选的实施方式中，接收单元902还可以用于：接收来自第一接入网设备的第一寻呼消息，第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。
在一种可选的实施方式中，上述下行数据包括预测的待传输给终端设备的数据。
在一种可选的实施方式中，发送单元901用于根据第二信息，向所述终端设备发送第 四寻呼消息时，具体用于：若支持SDT的RB的标识中包括上述下行数据的RB标识，则向终端设备发送第四寻呼消息。
在一种可选的实施方式中，发送单元901还可以用于：向第一接入网设备发送能力信息，该能力信息用于指示第二接入网设备服务的小区是否支持MT-SDT。
具体的，在这种情况中，发送单元901、接收单元902所执行的操作可以参照上述图8对应的实施例中有关第二接入网设备的介绍，此处不再赘述。
请参阅图10，图10是本申请实施例提供的另一种寻呼装置的结构示意图。如图10所示，该寻呼装置100包括接收单元1001、判断单元1002和选择单元1003。寻呼装置100可以执行前述方法实施例中终端设备的相关步骤。
接收单元1001，用于接收来自接入网设备的寻呼消息，该寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息；
若存在待传输的上行数据，则判断单元1002用于判断是否使用SDT资源进行上行传输；和/或，若不存在待传输的上行数据，则选择单元1003用于选择SDT资源进行上行传输。
在一种可选的实施方式中，判断单元1002用于判断是否使用SDT资源进行上行传输时，具体用于：若支持SDT的RB的标识中包括待传输的上行数据的RB标识，则确定使用SDT资源进行上行传输。
寻呼装置100还可以用于实现图4～图8对应实施例中终端设备的功能，此处不再赘述。
请参阅图11，图11为本申请实施例提供的又一种寻呼装置110。可以用于实现上述方法实施例中终端设备的功能，或者，实现上述方法实施例中第一接入网设备的功能，或者，实现上述方法实施例中第二接入网设备的功能。该寻呼装置110可以包括收发器1101和处理器1102。可选的，该寻呼装置还可以包括存储器1103。其中，收发器1101、处理器1102、存储器1103可以通过总线1104或其他方式连接。总线在图11中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。总线可以分为地址总线、数据总线、控制总线等。为便于表示，图11中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。本申请实施例中不限定上述收发器1101、处理器1102、存储器1103之间的具体连接介质。
存储器1103可以包括只读存储器和随机存取存储器，并向处理器1102提供指令和数据。存储器1103的一部分还可以包括非易失性随机存取存储器。
处理器1102可以是中央处理单元(Central Processing Unit，CPU)，该处理器1102还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(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、分立硬件组件等。通用处理器可以是微处理器，可选的，该处理器1102也可以是任何常规的处理器等。
一种示例中，当终端设备采用图11所示的形式时，图11中的处理器可以执行上述任一方法实施例中的终端设备执行的方法。
一种示例中，当第一接入网设备采用图11所示的形式时，图11中的处理器可以执行上述任一方法实施例中的第一接入网设备执行的方法。
一种示例中，当第二接入网设备采用图11所示的形式时，图11中的处理器可以执行上述任一方法实施例中的第二接入网设备执行的方法。
在一种可选的实施方式中，存储器1103，用于存储程序指令；处理器1102，用于调用存储器1103中存储的程序指令，以用于执行图4-图8对应实施例中终端设备、第一接入网设备、第二接入网设备所执行的步骤。具体的，图9的发送单元、接收单元的功能/实现过程均可以通过图11中的处理器1102调用存储器1103中存储的计算机执行指令来实现。或者，图9的发送单元、接收单元的功能/实现过程可以通过图11中的收发器1101来实现。图10的接收单元、判断单元和选择单元的功能/实现过程均可以通过图11中的处理器1102调用存储器1103中存储的计算机执行指令来实现。或者，图10的判断单元、选择单元的功能/实现过程可以通过图11中的处理器1102调用存储器1103中存储的计算机执行指令来实现，图10的接收单元的功能/实现过程可以通过图11中的收发器1101来实现。
在本申请实施例中，可以通过在包括CPU、随机存取存储介质(Random Access Memory，RAM)、只读存储介质(Read-Only Memory，ROM)等处理元件和存储元件的例如计算机的通用计算装置上运行能够执行上述方法所涉及的各步骤的计算机程序(包括程序代码)，以及来实现本申请实施例所提供的方法。计算机程序可以记载于例如计算机可读记录介质上，并通过计算机可读记录介质装载于上述计算装置中，并在其中运行。
基于同一发明构思，本申请实施例中提供的寻呼装置110解决问题的原理与有益效果与本申请方法实施例中终端设备、第一接入网设备、第二接入网设备解决问题的原理和有益效果相似，可以参见方法的实施的原理和有益效果，为简洁描述，在这里不再赘述。
前述寻呼装置(如寻呼装置90、寻呼装置100、寻呼装置110)，例如可以是：芯片、或者芯片模组。
本申请实施例还提供一种芯片，该芯片可以执行前述方法实施例中终端设备、第一接入网设备、第二接入网设备的相关步骤。
对于芯片用于实现上述实施例中第一接入网设备的功能的情况：
该芯片用于：向第二接入网设备发送第一寻呼消息，第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
在一种可选的实施方式中，该芯片还可以用于：接收来自核心网设备的第一信息，该第一信息包括待传输给终端设备的下行数据的服务质量QoS信息。
在一种可选的实施方式中，该芯片还可以用于：向第二接入网设备发送第二信息，该第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、该下行数据的QoS信息、支持SDT的无线承载RB的标识。
在一种可选的实施方式中，上述下行数据包括预测的待传输给终端设备的数据。
在一种可选的实施方式中，该芯片用于向第二接入网设备发送第一寻呼消息时，具体 用于：若支持SDT的RB的标识中包括上述下行数据的RB标识，则向第二接入网设备发送第一寻呼消息。
在一种可选的实施方式中，该芯片还可以用于：接收来自第二接入网设备的能力信息，该能力信息用于指示第二接入网设备服务的小区是否支持MT-SDT。
具体的，在这种情况中，芯片所执行的操作可以参照上述图4-图8对应的实施例中有关第一接入网设备的介绍。
对于芯片用于实现上述实施例中终端设备的功能的情况：
该芯片用于：接收来自接入网设备的寻呼消息，该寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息；若存在待传输的上行数据，则判断是否使用SDT资源进行上行传输；和/或，若不存在待传输的上行数据，则选择SDT资源进行上行传输。
在一种可选的实施方式中，该芯片用于判断是否使用SDT资源进行上行传输时，具体用于：若支持SDT的RB的标识中包括待传输的上行数据的RB标识，则确定使用SDT资源进行上行传输。
具体的，在这种情况中，芯片所执行的操作可以参照上述图4-图8所对应的实施例中有关终端设备的介绍。
对于芯片用于实现图4-图7对应实施例中第二接入网设备的功能的情况：
该芯片用于：接收来自第一接入网设备的第一寻呼消息，该第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
在一种可选的实施方式中，该芯片还可以用于：根据第一寻呼消息，向终端设备发送第二寻呼消息，该第二寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。
在一种可选的实施方式中，该芯片还可以用于：接收来自第一接入网设备的第二信息；该第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、该下行数据的服务质量QoS信息、支持SDT的无线承载RB的标识；并根据第二信息，向终端设备发送第三寻呼消息，该第三寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。
在一种可选的实施方式中，上述下行数据包括预测的待传输给终端设备的数据。
在一种可选的实施方式中，该芯片用于根据第二信息，向终端设备发送第三寻呼消息时，具体用于：若支持SDT的RB的标识中包括上述下行数据的RB标识，则向终端设备发送第三寻呼消息。
在一种可选的实施方式中，该芯片还可以用于：向第一接入网设备发送能力信息，该能力信息用于指示第二接入网设备服务的小区是否支持MT-SDT。
具体的，在这种情况中，芯片所执行的操作可以参照上述图4-图7对应的实施例中有关第二接入网设备的介绍。
对于芯片用于实现图8对应实施例中第二接入网设备的功能的情况：
该芯片用于：接收来自第一接入网设备的第二信息，该第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、该下行数据的服务质量QoS信息、支持小包传输 SDT的无线承载RB的标识；并根据第二信息，向终端设备发送第四寻呼消息，该第四寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
在一种可选的实施方式中，该芯片还可以用于：接收来自第一接入网设备的第一寻呼消息，第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行MT-SDT的指示信息。
在一种可选的实施方式中，上述下行数据包括预测的待传输给终端设备的数据。
在一种可选的实施方式中，该芯片用于根据第二信息，向所述终端设备发送第四寻呼消息时，具体用于：若支持SDT的RB的标识中包括上述下行数据的RB标识，则向终端设备发送第四寻呼消息。
在一种可选的实施方式中，该芯片还可以用于：向第一接入网设备发送能力信息，该能力信息用于指示第二接入网设备服务的小区是否支持MT-SDT。
具体的，在这种情况中，芯片所执行的操作可以参照上述图8对应的实施例中有关第二接入网设备的介绍。
在一种可能的实现方式中，上述芯片包括至少一个处理器、至少一个第一存储器和至少一个第二存储器；其中，前述至少一个第一存储器和前述至少一个处理器通过线路互联，前述第一存储器中存储有指令；前述至少一个第二存储器和前述至少一个处理器通过线路互联，前述第二存储器中存储前述方法实施例中需要存储的数据。
对于应用于或集成于芯片的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，或者，至少部分模块可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块可以采用电路等硬件方式实现。
请参阅图12，图12为本申请实施例提供的一种芯片模组的结构示意图。该芯片模组120可以执行前述方法实施例中终端设备、第一接入网设备、第二接入网设备的相关步骤，该芯片模组120包括：通信接口1201和芯片1202。
其中，通信接口用于进行芯片模组内部通信，或者用于该芯片模组与外部设备进行通信；该芯片用于实现本申请实施例中终端设备、第一接入网设备、第二接入网设备的功能，具体参见图4-图8对应实施例。可选的，芯片模组120还可以包括存储模组1203、电源模组1204。存储模组1203用于存储数据和指令。电源模组1204用于为芯片模组提供电能。
对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，不同的模块可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块可以采用电路等硬件方式实现。
本申请实施例还提供一种计算机可读存储介质，计算机可读存储介质中存储有一条或多条指令，一条或多条指令适于由处理器加载并执行上述方法实施例所提供的方法。
本申请实施例还提供一种包含计算机程序或指令的计算机程序产品，当计算机程序或指令在计算机上运行时，使得计算机执行上述方法实施例所提供的方法。
本申请实施例还提供一种寻呼系统，该系统可以包括图4-图8对应实施例中的第一接入网设备和第二接入网设备。可选的，该系统还可以包括图4-图8对应实施例中的终端设备。 可选的，该系统还可以包括图4-图8对应实施例中的核心网设备。
关于上述实施例中描述的各个装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
需要说明的是，对于前述的各个方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某一些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本申请所必须的。
本申请实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本申请实施例装置中的模块可以根据实际需要进行合并、划分和删减。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，可读存储介质可以包括：闪存盘、ROM、RAM、磁盘或光盘等。
以上所揭露的仅为本申请一种较佳实施例而已，仅仅是本申请一部分实施例，不能以此来限定本申请之权利范围。

Claims (32)

  1. 一种寻呼方法，应用于第一接入网设备之中，其特征在于，包括：
    向第二接入网设备发送第一寻呼消息，所述第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    接收来自核心网设备的第一信息，所述第一信息包括待传输给所述终端设备的下行数据的服务质量QoS信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    向所述第二接入网设备发送第二信息，所述第二信息包括以下一项或多项：待传输给所述终端设备的下行数据的数据量、所述下行数据的QoS信息、支持SDT的无线承载RB的标识。
  4. 根据权利要求2或3所述的方法，其特征在于，所述下行数据包括预测的待传输给所述终端设备的数据。
  5. 根据权利要求2-4任一项所述的方法，其特征在于，所述向第二接入网设备发送第一寻呼消息，包括：
    若支持SDT的RB的标识中包括所述下行数据的RB标识，则向第二接入网设备发送第一寻呼消息。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述方法还包括：
    接收来自所述第二接入网设备的能力信息，所述能力信息用于指示所述第二接入网设备服务的小区是否支持MT-SDT。
  7. 一种寻呼方法，应用于终端设备之中，其特征在于，包括：
    接收来自接入网设备的寻呼消息，所述寻呼消息包括被寻呼的所述终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息；
    若存在待传输的上行数据，则判断是否使用SDT资源进行上行传输；和/或，
    若不存在待传输的上行数据，则选择SDT资源进行上行传输。
  8. 根据权利要求7所述的方法，其特征在于，所述判断是否使用SDT资源进行上行传输，包括：
    若支持SDT的RB的标识中包括所述待传输的上行数据的RB标识，则确定使用SDT资源进行上行传输。
  9. 一种寻呼方法，应用于第二接入网设备之中，其特征在于，包括：
    接收来自第一接入网设备的第一寻呼消息，所述第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  10. 根据权利要求9所述的方法，其特征在于，所述方法还包括：
    根据所述第一寻呼消息，向所述终端设备发送第二寻呼消息，所述第二寻呼消息包括被寻呼的所述终端设备的标识以及用于指示进行MT-SDT的指示信息。
  11. 根据权利要求9所述的方法，其特征在于，所述方法还包括：
    接收来自所述第一接入网设备的第二信息；所述第二信息包括以下一项或多项：待传输给所述终端设备的下行数据的数据量、所述下行数据的服务质量QoS信息、支持SDT的无线承载RB的标识；
    根据所述第二信息，向所述终端设备发送第三寻呼消息，所述第三寻呼消息包括被寻呼的所述终端设备的标识以及用于指示进行MT-SDT的指示信息。
  12. 根据权利要求11所述的方法，其特征在于，所述下行数据包括预测的待传输给所述终端设备的数据。
  13. 根据权利要求11或12所述的方法，其特征在于，所述根据所述第二信息，向所述终端设备发送第三寻呼消息，包括：
    若支持SDT的RB的标识中包括所述下行数据的RB标识，则向所述终端设备发送第三寻呼消息。
  14. 根据权利要求9-13任一项所述的方法，其特征在于，所述方法还包括：
    向所述第一接入网设备发送能力信息，所述能力信息用于指示所述第二接入网设备服务的小区是否支持MT-SDT。
  15. 一种寻呼方法，应用于第二接入网设备之中，其特征在于，包括：
    接收来自第一接入网设备的第二信息；所述第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、所述下行数据的服务质量QoS信息、支持小包传输SDT的无线承载RB的标识；
    根据所述第二信息，向所述终端设备发送第四寻呼消息，所述第四寻呼消息包括被寻呼的所述终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  16. 根据权利要求15所述的方法，其特征在于，所述方法还包括：
    接收来自所述第一接入网设备的第一寻呼消息，所述第一寻呼消息包括被寻呼的所述终端设备的标识以及用于指示进行MT-SDT的指示信息。
  17. 根据权利要求15或16所述的方法，其特征在于，所述下行数据包括预测的待传输给所述终端设备的数据。
  18. 根据权利要求15-17任一项所述的方法，其特征在于，所述根据所述第二信息，向所述终端设备发送第四寻呼消息，包括：
    若所述支持SDT的RB的标识中包括所述下行数据的RB标识，则向所述终端设备发送第四寻呼消息。
  19. 根据权利要求16所述的方法，其特征在于，所述方法还包括：
    向所述第一接入网设备发送能力信息，所述能力信息用于指示所述第二接入网设备服务的小区是否支持MT-SDT。
  20. 一种寻呼装置，其特征在于，所述装置包括发送单元；
    所述发送单元，用于向第二接入网设备发送第一寻呼消息，所述第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  21. 一种寻呼装置，其特征在于，所述装置包括接收单元、判断单元和选择单元；
    所述接收单元，用于接收来自接入网设备的寻呼消息，所述寻呼消息包括被寻呼的所述终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息；
    若存在待传输的上行数据，则所述判断单元用于判断是否使用SDT资源进行上行传输；和/或，
    若不存在待传输的上行数据，则所述选择单元用于选择SDT资源进行上行传输。
  22. 一种寻呼装置，其特征在于，所述装置包括接收单元；
    所述接收单元，用于接收来自第一接入网设备的第一寻呼消息，所述第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  23. 一种寻呼装置，其特征在于，所述装置包括接收单元和发送单元；
    所述接收单元，用于接收来自第一接入网设备的第二信息；所述第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、所述下行数据的服务质量QoS信息、支持小包传输SDT的无线承载RB的标识；
    所述发送单元，用于根据所述第二信息，向所述终端设备发送第四寻呼消息，所述第四寻呼消息包括被寻呼的所述终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  24. 一种寻呼装置，其特征在于，包括处理器；
    所述处理器，用于执行如权利要求1～19中任一项所述的方法。
  25. 一种芯片，其特征在于，
    所述芯片，用于：
    向第二接入网设备发送第一寻呼消息，所述第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  26. 一种芯片，其特征在于，
    所述芯片，用于：
    接收来自接入网设备的寻呼消息，所述寻呼消息包括被寻呼的所述终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息；
    若存在待传输的上行数据，则判断是否使用SDT资源进行上行传输；和/或，
    若不存在待传输的上行数据，则选择SDT资源进行上行传输。
  27. 一种芯片，其特征在于，
    所述芯片，用于：
    接收来自第一接入网设备的第一寻呼消息，所述第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  28. 一种芯片，其特征在于，
    所述芯片，用于：
    接收来自第一接入网设备的第二信息；所述第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、所述下行数据的服务质量QoS信息、支持小包传输SDT的无线承载RB的标识；
    根据所述第二信息，向所述终端设备发送第四寻呼消息，所述第四寻呼消息包括被寻呼的所述终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  29. 一种芯片模组，其特征在于，所述芯片模组包括通信接口和芯片，其中：
    所述通信接口用于进行芯片模组内部通信，或者用于所述芯片模组与外部设备进行通信；
    所述芯片用于：
    向第二接入网设备发送第一寻呼消息，所述第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  30. 一种芯片模组，其特征在于，所述芯片模组包括通信接口和芯片，其中：
    所述通信接口用于进行芯片模组内部通信，或者用于所述芯片模组与外部设备进行通信；
    所述芯片用于：
    接收来自接入网设备的寻呼消息，所述寻呼消息包括被寻呼的所述终端设备的标识以 及用于指示进行移动台被呼-小包传输MT-SDT的指示信息；
    若存在待传输的上行数据，则判断是否使用SDT资源进行上行传输；和/或，
    若不存在待传输的上行数据，则选择SDT资源进行上行传输。
  31. 一种芯片模组，其特征在于，所述芯片模组包括通信接口和芯片，其中：
    所述通信接口用于进行芯片模组内部通信，或者用于所述芯片模组与外部设备进行通信；
    所述芯片用于：
    接收来自第一接入网设备的第一寻呼消息，所述第一寻呼消息包括被寻呼的终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
  32. 一种芯片模组，其特征在于，所述芯片模组包括通信接口和芯片，其中：
    所述通信接口用于进行芯片模组内部通信，或者用于所述芯片模组与外部设备进行通信；
    所述芯片用于：
    接收来自第一接入网设备的第二信息；所述第二信息包括以下一项或多项：待传输给终端设备的下行数据的数据量、所述下行数据的服务质量QoS信息、支持小包传输SDT的无线承载RB的标识；
    根据所述第二信息，向所述终端设备发送第四寻呼消息，所述第四寻呼消息包括被寻呼的所述终端设备的标识以及用于指示进行移动台被呼-小包传输MT-SDT的指示信息。
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