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WO2024138295A1 - Procédé de transmission de données, et dispositif terminal et dispositif de réseau - Google Patents

Procédé de transmission de données, et dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2024138295A1
WO2024138295A1 PCT/CN2022/141831 CN2022141831W WO2024138295A1 WO 2024138295 A1 WO2024138295 A1 WO 2024138295A1 CN 2022141831 W CN2022141831 W CN 2022141831W WO 2024138295 A1 WO2024138295 A1 WO 2024138295A1
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WIPO (PCT)
Prior art keywords
sdt
terminal device
trigger condition
resource
reason
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Ceased
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PCT/CN2022/141831
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English (en)
Chinese (zh)
Inventor
林雪
尤心
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2022/141831 priority Critical patent/WO2024138295A1/fr
Priority to CN202280099754.XA priority patent/CN119790710A/zh
Publication of WO2024138295A1 publication Critical patent/WO2024138295A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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

Definitions

  • a method for transmitting data comprises: if a terminal device receives an SDT indication sent by a network device and the terminal device receives a first request, the terminal device determines whether to trigger a target process; wherein the target process comprises an SDT process or an RRC connection recovery process, and the first request is used to request an access layer of the terminal device to restore the RRC connection.
  • a method for transmitting data includes: if a first trigger condition and a second trigger condition are met, a network device receives first indication information sent by a terminal device; wherein the first trigger condition corresponds to a first SDT process triggered by the terminal device, the second trigger condition corresponds to a second SDT process triggered by the network device, and the first indication information is used to indicate that the triggering reason of the SDT process is that both the first trigger condition and the second trigger condition are met.
  • a terminal device comprising a processor, a memory and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer programs in the memory so that the terminal device executes part or all of the steps in the method of the first aspect.
  • a network device comprising a processor, a memory, and a transceiver, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer programs in the memory so that the network device executes part or all of the steps in the method of the second aspect.
  • the terminal device can determine whether to trigger the SDT process or whether to trigger the RRC recovery process. In some cases, the terminal device can determine to trigger the SDT process to avoid unnecessary power consumption and signaling overhead; in some cases, the terminal device can determine to trigger the RRC recovery process to meet data transmission requirements.
  • FIG1 is a wireless communication system applied in an embodiment of the present application.
  • FIG. 2 is a flowchart showing an example of the MO-EDT process.
  • FIG4 is a schematic flowchart of a method for transmitting data provided in an embodiment of the present application.
  • FIG5 is a schematic structural diagram of a terminal device provided in an embodiment of the present application.
  • FIG6 is a schematic structural diagram of a network device provided in an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a device for communication provided in an embodiment of the present application.
  • FIG1 is a wireless communication system 100 used in an embodiment of the present application.
  • the wireless communication system 100 may include a network device 110 and a terminal device 120.
  • the network device 110 may be a device that communicates with the terminal device 120.
  • the network device 110 may provide communication coverage for a specific geographical area, and may communicate with the terminal device 120 located in the coverage area.
  • FIG1 exemplarily shows a network device and two terminals.
  • the wireless communication system 100 may include multiple network devices and each network device may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.
  • the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), etc.
  • 5G fifth generation
  • NR new radio
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD time division duplex
  • future communication systems such as the sixth generation mobile communication system, satellite communication system, etc.
  • the terminal device in the embodiment of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc.
  • the terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.
  • the UE can be used to act as a base station.
  • the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc.
  • a cellular phone and a car communicate with each other using a sidelink signal.
  • the cellular phone and the smart home device communicate with each other without relaying the communication signal through the base station.
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be referred to as an access network device or a wireless access network device, such as a base station.
  • the network device in the embodiment of the present application may refer to a wireless access network (RAN) node (or device) that connects a terminal device to a wireless network.
  • RAN wireless access network
  • Base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc.
  • the base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof.
  • the base station can also refer to a communication module, a modem or a chip used to be arranged in the aforementioned device or apparatus.
  • the base station can also be a mobile switching center and a device to device D2D, vehicle-to-everything (V2X), a device that performs the base station function in machine-to-machine (M2M) communications, a network side device in a 6G network, and a device that performs the base station function in future communication systems.
  • the base station can support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment.
  • Base stations can be fixed or mobile.
  • a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station.
  • a helicopter or drone can be configured to act as a device that communicates with another base station.
  • the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU.
  • the gNB may also include an AAU.
  • the network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air.
  • the embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.
  • EDT technology In some communication systems (such as LTE systems), EDT technology is introduced. EDT technology can realize small data transmission. During the EDT process, the terminal device can remain in an idle state, a suspended state, or an inactive state, and complete the transmission of small uplink and/or downlink data packets. EDT can be divided into mobile originated early data transmission (MO-EDT) and mobile terminated early data transmission (MT-EDT). The difference between MO-EDT and MT-EDT is that the communication devices that trigger EDT are different.
  • MO-EDT mobile originated early data transmission
  • MT-EDT mobile terminated early data transmission
  • FIG. 2 is an example diagram of the MO-EDT air interface transmission process.
  • the process shown in FIG. 2 may include steps S201, S202, S210, and S280.
  • Step S201 The terminal device sends a random access preamble to the network device to trigger the MO-EDT process.
  • the network device may allocate random access resources dedicated to MO-EDT to the terminal device to distinguish whether the current random access process is triggered by MO-EDT.
  • the RAR may include an uplink grant (UL grant).
  • the terminal device may use the obtained uplink grant to transmit uplink data. If the current random access process is triggered by MO-EDT, the network device may allocate a larger uplink grant through the RAR for transmitting uplink data.
  • the MT-EDT process is an EDT process initiated by a network device.
  • the network device that initiates the MT-EDT process may be a mobility management entity (MME).
  • MME mobility management entity
  • the MT-EDT process is described below using Figure 3 as an example.
  • Figure 3 is a flowchart of the MT-EDT process.
  • the terminal device can also initiate the MO-EDT process, which is different from the normal MO-EDT process.
  • the MO-EDT process initiated during the MT-EDT process meets one or more of the following conditions: the terminal device uses the legacy random access channel (RACH) resources to initiate random access, that is, the terminal device does not use the random access resources dedicated to MO-EDT used in the normal MO-EDT process; the resume cause is set to mt-EDT to inform the network device of the purpose or reason for the current connection establishment; the network device side can further determine whether to instruct the terminal device to enter the connection state through the pending data indication sent by the core network, where the pending data indication is used to indicate whether the network device has further downlink data transmission requirements.
  • RACH legacy random access channel
  • the terminal device can trigger the MO-SDT process; if the triggering conditions of the MO-SDT process are not met, the terminal device can trigger the RRC connection resumption process. Based on the RRC connection recovery process, the terminal device can be converted from the RRC inactive state to the RRC connected state to perform normal data transmission.
  • the target process may include an SDT process or an RRC connection recovery process.
  • the terminal device may determine whether to trigger the SDT process, or the terminal device may determine whether to trigger the RRC connection recovery process.
  • the terminal device can determine whether to trigger the SDT process or whether to trigger the RRC recovery process. In some cases, the terminal device can determine to trigger the SDT process to avoid unnecessary power consumption and signaling overhead; in some cases, the terminal device can determine to trigger the RRC recovery process to meet data transmission requirements.
  • the target process is determined based on one or more of the following: configuration information of the network device, pre-configuration information of the terminal device, implementation of the terminal device, and triggering conditions of the SDT process.
  • the configuration information of the network device may include one or more of the following information: an indication of whether the terminal device is allowed to trigger the first SDT process, a radio bearer allowed to trigger the first SDT process, and a radio bearer allowed to trigger the second SDT process.
  • the target process may be: a second SDT process initiated by the network device, or an RRC connection recovery process. For example, if the second trigger condition is met, the terminal device may initiate the second SDT process. If the second trigger condition is not met, the terminal device may initiate the RRC connection recovery process.
  • whether the terminal device is allowed to trigger the first SDT process may be determined by the configuration information of the radio bearer that triggers the SDT process. For example, if the network device does not configure the first bearer set for the terminal device, the terminal device may not be allowed to trigger the first SDT process. If the network device configures the first bearer set for the terminal device, the terminal device may be allowed to trigger the first SDT process.
  • the second trigger condition can be determined based on one or more of the following: an SDT indication sent by a network device, and the wireless link quality of the terminal device.
  • the second trigger condition may include one or more of the following: receiving a first paging message, and the paging message includes an identifier and/or an SDT indication of the terminal device; the downlink signal quality of the terminal device is greater than or equal to a second threshold.
  • the second threshold and the first signal quality threshold in the first trigger condition may be the same configuration or different configurations.
  • the downlink signal quality may be represented by RSRP, for example.
  • the terminal device may trigger the SDT process corresponding to the one condition, thereby triggering the appropriate SDT type, and thus enabling the transmission of a small amount of data by the terminal device in the RRC non-activated state.
  • the terminal device may trigger the RRC connection recovery process.
  • Example 1 Example 1
  • the terminal device may execute step 530 .
  • Step 540 The terminal device triggers the RRC connection recovery process or the MT-SDT process.
  • the second trigger condition may be a condition for triggering MT-SDT.
  • the second trigger condition may include, for example: receiving a paging message including a terminal device ID and an MT-SDT indication; and/or, the downlink RSRP is greater than or equal to a second RSRP threshold.
  • the first RSRP threshold and the second RSRP threshold may be the same configuration or different configurations.
  • step 640 may further include step 642 .
  • the terminal device may execute step 650 .
  • Embodiment 2 also provides a method for determining whether a terminal device is allowed to trigger the MO-SDT process.
  • the terminal device can determine that the terminal device is allowed to trigger the MO-SDT process: the system broadcast message contains RA-SDT resources; the RRC connection release message contains CG-SDT resources; the system broadcast message contains the first data volume threshold and/or the first RSRP threshold for triggering MO-SDT; the terminal device receives a second indication information, and the second indication information is used to indicate that the terminal device can trigger MO-SDT when receiving a paging message containing an MT-SDT indication.
  • FIG5 is a terminal device 500 provided in an embodiment of the present application.
  • the terminal device 500 includes: a determination unit 510 .
  • the terminal device 500 also includes: a first receiving unit, used to receive first configuration information, wherein the first configuration information is used to indicate one or more of the following information: the wireless bearer allowed to trigger the first SDT process is a first bearer set, and the wireless bearer allowed to trigger the second SDT process is a second bearer set; a recovery unit, used to restore the wireless bearers of the first bearer set and/or the second bearer set.
  • the first indication information satisfies one of the following: the first indication information includes a first recovery reason, and the first recovery reason is used to indicate that the terminal device satisfies the first trigger condition and the second trigger condition; the first indication information includes a second recovery reason, and when the terminal device selects the resources corresponding to the first SDT process, the second recovery reason is used to indicate that the terminal device satisfies the second trigger condition, and when the terminal device selects the resources corresponding to the second SDT process, the second recovery reason is used to indicate that the terminal device satisfies the first trigger condition; the first indication information includes a third recovery reason and a fourth recovery reason, and the third recovery reason is used to indicate that the terminal device satisfies the first trigger condition, and the fourth recovery reason is used to indicate that the terminal device satisfies the second trigger condition; if the SDT process is the first SDT process, the first indication information is used to indicate that the terminal device satisfies the second trigger condition, and if the SDT process is the first SDT
  • the target process is the second SDT process, wherein the second bearer set is a wireless bearer that allows triggering the second SDT process.
  • the second trigger condition is determined based on one or more of the following: the SDT indication; the wireless link quality of the terminal device.
  • the second trigger condition is determined based on one or more of the following: the SDT indication; the carrier of uplink data of the terminal device; the amount of uplink data of the terminal device; the carrier of uplink signaling of the terminal device; the wireless link quality of the terminal device; and whether there are valid SDT resources.
  • the second trigger condition includes one or more of the following: receiving a first paging message, and the first paging message includes the identifier of the terminal device and/or the SDT indication; the wireless bearer corresponding to the uplink data is a wireless bearer that allows triggering SDT; the wireless bearer corresponding to the uplink signaling is a wireless bearer that allows triggering SDT; the data volume of the uplink data is less than or equal to the first threshold; the downlink signal quality of the terminal device is greater than or equal to the second threshold; there are valid SDT resources.
  • the target process is: the second SDT process initiated by the network device; or the RRC connection recovery process.
  • the uplink resource used for the first transmission of uplink data/signaling satisfies one of the following: when the CG-SDT resource is valid, the uplink resource is the CG-SDT resource; when the CG-SDT resource is invalid and the RA-SDT resource is valid, the uplink resource is the RA-SDT resource; when both the CG-SDT resource and the RA-SDT resource are invalid, the uplink resource is the normal RACH resource; when the CG-SDT resource is valid, the uplink resource is the CG-SDT resource; when the CG-SDT resource is invalid, the uplink resource is the normal RACH resource; the uplink resource is the normal RACH resource.
  • Fig. 6 is a schematic structural diagram of a network device 600 provided in an embodiment of the present application.
  • the network device 600 includes: a second receiving unit 610 .
  • the first indication information satisfies one of the following: the first indication information includes a first recovery reason, and the first recovery reason is used to indicate that the terminal device satisfies the first trigger condition and the second trigger condition; the first indication information includes a second recovery reason, and when the terminal device selects the resources corresponding to the first SDT process, the second recovery reason is used to indicate that the terminal device satisfies the second trigger condition, and when the terminal device selects the resources corresponding to the second SDT process, the second recovery reason is used to indicate that the terminal device satisfies the first trigger condition; the first indication information includes a third recovery reason and a fourth recovery reason, and the third recovery reason is used to indicate that the terminal device satisfies the first trigger condition, and the fourth recovery reason is used to indicate that the terminal device satisfies the second trigger condition; if the SDT process is the first SDT process, the first indication information is used to indicate that the terminal device satisfies the second trigger condition, and if the SDT process is the first SDT
  • the second receiving unit 610 may be a transceiver 730, and the determining unit 510 may be a processor 710.
  • the terminal device 500 or the network device 600 may further include a memory 720, as specifically shown in FIG.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product includes a program.
  • the computer program product can be applied to the terminal or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal or network device in each embodiment of the present application.
  • the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, B can be obtained through C; it can also mean that there is an association relationship between A and B.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean determining B only according to A, and B can also be determined according to A and/or other information.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.
  • pre-definition or “pre-configuration” can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method.
  • pre-definition can refer to what is defined in the protocol.
  • the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.
  • the term "and/or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.
  • the size of the serial numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a digital video disc (DVD)
  • DVD digital video disc
  • SSD solid state disk

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Abstract

La présente invention porte sur un procédé de transmission de données, et un dispositif terminal, et un dispositif de réseau. Le procédé comprend les étapes suivantes : si un dispositif terminal a reçu une indication SDT envoyée par un dispositif de réseau et que le dispositif terminal a reçu une première demande, le dispositif terminal détermine s'il faut déclencher un processus cible, le processus cible comprenant un processus SDT ou un processus de récupération de connexion RRC, et la première demande étant utilisée pour demander qu'une couche d'accès du dispositif terminal récupère une connexion RRC. Si le dispositif terminal reçoit simultanément l'indication SDT déclenchée par le dispositif de réseau, et la première demande (c'est-à-dire qu'il existe des données/signalisation de liaison montante qui sont arrivées), le dispositif terminal peut déterminer s'il faut déclencher le processus SDT ou s'il faut déclencher le processus de récupération RRC. Dans certains cas, le dispositif terminal peut déterminer de déclencher le processus SDT, de façon à éviter une consommation d'énergie inutile et des surdébits de signalisation ; et dans certains cas, le dispositif terminal peut déterminer de déclencher le processus de récupération RRC, de façon à satisfaire une exigence de transmission de données.
PCT/CN2022/141831 2022-12-26 2022-12-26 Procédé de transmission de données, et dispositif terminal et dispositif de réseau Ceased WO2024138295A1 (fr)

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PCT/CN2022/141831 WO2024138295A1 (fr) 2022-12-26 2022-12-26 Procédé de transmission de données, et dispositif terminal et dispositif de réseau
CN202280099754.XA CN119790710A (zh) 2022-12-26 2022-12-26 用于传输数据的方法、终端设备以及网络设备

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WO2022207279A1 (fr) * 2021-04-01 2022-10-06 Nokia Technologies Oy Plage de volume de données pour initier une transmission de petites données
CN115460625A (zh) * 2021-06-08 2022-12-09 大唐移动通信设备有限公司 数据传输方法、设备及存储介质

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Publication number Priority date Publication date Assignee Title
CN113133110A (zh) * 2019-12-30 2021-07-16 中移雄安信息通信科技有限公司 数据传输方法、终端和网络侧设备
WO2021203252A1 (fr) * 2020-04-07 2021-10-14 Oppo广东移动通信有限公司 Procédé et dispositif de transmission et de réception de données dans un état inactif, et équipement utilisateur
CN114390557A (zh) * 2020-10-21 2022-04-22 大唐移动通信设备有限公司 数据传输控制方法、装置及存储介质
CN114727414A (zh) * 2021-01-04 2022-07-08 华为技术有限公司 数据传输方法及相关装置
WO2022207279A1 (fr) * 2021-04-01 2022-10-06 Nokia Technologies Oy Plage de volume de données pour initier une transmission de petites données
CN115460625A (zh) * 2021-06-08 2022-12-09 大唐移动通信设备有限公司 数据传输方法、设备及存储介质

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