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WO2024152181A1 - Transmission de petites données - Google Patents

Transmission de petites données Download PDF

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Publication number
WO2024152181A1
WO2024152181A1 PCT/CN2023/072473 CN2023072473W WO2024152181A1 WO 2024152181 A1 WO2024152181 A1 WO 2024152181A1 CN 2023072473 W CN2023072473 W CN 2023072473W WO 2024152181 A1 WO2024152181 A1 WO 2024152181A1
Authority
WO
WIPO (PCT)
Prior art keywords
sdt
procedure
terminal device
paging message
sdt procedure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/072473
Other languages
English (en)
Inventor
Jussi-Pekka Koskinen
Samuli Heikki TURTINEN
Chunli Wu
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.)
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Original Assignee
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Shanghai Bell Co Ltd, Nokia Solutions and Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co Ltd
Priority to CN202380091329.0A priority Critical patent/CN120548758A/zh
Priority to PCT/CN2023/072473 priority patent/WO2024152181A1/fr
Publication of WO2024152181A1 publication Critical patent/WO2024152181A1/fr
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
    • 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
    • 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
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • Various example embodiments relate to the field of telecommunication and in particular, to methods, devices, apparatuses, and computer readable storage media for small data transmission (SDT) .
  • SDT small data transmission
  • NR New Radio
  • NR New Radio
  • NR New Radio
  • NR New Radio
  • a transmission scheme called SDT has been proposed to facilitate data transmission.
  • SDT data interaction between a base station and a UE may be achieved, while the UE is in the RRC_INACTIVE state during the transmission.
  • RRC_INACTIVE radio resource control INACTIVE
  • RRC_CONNECTED Radio resource control INACTIVE
  • SDT data interaction between a base station and a UE may be achieved, while the UE is in the RRC_INACTIVE state during the transmission.
  • example embodiments of the present disclosure provide a solution related to SDT.
  • a terminal device comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the terminal device at least to: receive, from a network device, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure, wherein the paging message addresses the one or more terminal devices; and initiate the SDT procedure based on determining to initiate the SDT procedure based on at least the paging message.
  • a network device comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the network device at least to: generate, for a plurality of terminal devices, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure, wherein the paging message addresses the one or more terminal devices; and transmit the paging message to the one or more terminal devices.
  • a method implemented at a network device comprises generating, for a plurality of terminal devices, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure, wherein the paging message addresses the one or more terminal devices; and transmitting the paging message to the one or more terminal devices.
  • an apparatus comprises means for receiving, at a terminal device, from a network device, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure, wherein the paging message addresses the one or more terminal devices; and means for initiating the SDT procedure based on determining to initiate the SDT procedure based on at least the paging message.
  • an apparatus comprises means for generating, at a terminal device, for a plurality of terminal devices, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure, wherein the paging message addresses the one or more terminal devices; and means for transmitting the paging message to the one or more terminal devices.
  • a non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the method according to any one of the above third to fourth aspect.
  • a computer program comprising instructions, which, when executed by an apparatus, cause the apparatus at least to perform at least the method according to any one of the above third to fourth aspect.
  • a terminal device comprising receiving circuitry configured to receive, from a network device, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure, wherein the paging message addresses the one or more terminal devices; and initiating circuitry configured to initiate the SDT procedure based on determining to initiate the SDT procedure based on at least the paging message.
  • a network device comprising generating circuitry configured to generate, for a plurality of terminal devices, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure, wherein the paging message addresses the one or more terminal devices; and transmitting circuitry configured to transmit the paging message to the one or more terminal devices.
  • FIG. 1 illustrates an example environment in which example embodiments of the present disclosure can be implemented
  • FIG. 2 illustrates a signaling flow between the terminal device and the network device according to some example embodiments of the present disclosure
  • FIG. 3 illustrates a flowchart of a method implemented at a terminal device according to some embodiments of the present disclosure
  • FIG. 4 illustrates a flowchart of a method implemented at a network device according to some embodiments of the present disclosure
  • FIG. 5 illustrates a simplified block diagram of a device that is suitable for implementing some example embodiments of the present disclosure.
  • FIG. 6 illustrates a block diagram of an example of a computer readable medium in accordance with some example embodiments of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • first and second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments.
  • the term “and/or” includes any and all combinations of one or more of the listed terms.
  • circuitry may refer to one or more or all of the following:
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
  • the term “communication network” refers to a network following any suitable communication standards, such as Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) and so on.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • NB-IoT Narrow Band Internet of Things
  • the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the third generation (3G) , the fourth generation (4G) , 4.5G, the future fifth generation (5G) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of
  • the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom.
  • the network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a New Radio (NR) NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, a low power node such as a femto, a pico, and so forth, depending on the applied terminology and technology.
  • BS base station
  • AP access point
  • NodeB or NB node B
  • eNodeB or eNB evolved NodeB
  • NR New Radio
  • RRU Remote Radio Unit
  • RH radio header
  • RRH remote radio head
  • terminal device refers to any end device that may be capable of wireless communication.
  • a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) .
  • UE user equipment
  • SS Subscriber Station
  • MS Mobile Station
  • AT Access Terminal
  • the terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (loT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and/
  • an SDT procedure allows data transmission while remaining in the RRC_INACTIVE state (i.e. without transitioning to the RRC_CONNECTED state) .
  • mobile originated (MO) SDT is enabled on a radio bearer basis and is initiated by the UE only if one or more conditions are fulfilled, for example, less than a configured amount of uplink data awaits transmission across all radio bearers for which SDT is enabled, measured reference signal received power (RSRP) in a cell is above a configured threshold, and a valid resource for the SDT procedure is available.
  • RSRP reference signal received power
  • Mobile terminated (MT) -SDT is triggered by a network device by sending a paging message with an MT-SDT indication. It is assumed that the UE shall check certain conditions (such as an RSRP threshold, time advance (TA) validity, a data radio bearer (DRB) configured for the SDT procedure, a data volume, etc. ) .
  • certain conditions such as an RSRP threshold, time advance (TA) validity, a data radio bearer (DRB) configured for the SDT procedure, a data volume, etc.
  • RACH random access channel
  • the purpose of the SDT procedure (that is, the MT-SDT indication with at least one bit) is explicitly included per UE via a paging message.
  • the MT-SDT indication per UE increases the size of the paging message, because one or more bits need to be added per UE which are paged for MT-SDT.
  • a terminal device receives, from a network device, a paging message comprising an indication indicating one or more terminal devices to initiate an SDT procedure.
  • the paging message addresses the one or more terminal devices.
  • the indication may be one indication common for the one or more terminal devices.
  • the terminal device initiates the SDT procedure based on determining to initiate the SDT procedure based on at least the paging message.
  • This scheme optimizes the SDT procedure by utilizing a common indication to indicate one or more terminal devices to initiate the SDT procedure. In this way, it is possible to avoid additional signalling overhead, save power consumption and improve transmission efficiency.
  • FIG. 1 illustrates an example environment 100 in which example embodiments of the present disclosure can be implemented.
  • the environment 100 which may be a part of a communication network, comprises a terminal device 110 and a network device 120 communicating with each other or with other devices via each other.
  • the environment 100 may comprise any suitable number of devices and cells.
  • the terminal device 110 and the network device 120 can communicate data and control information with each other.
  • a link from the network device 120 to the terminal device 110 is referred to as a downlink (DL)
  • a link from the terminal device 110 to the network device 120 is referred to as an uplink (UL) .
  • the environment 100 may comprise a further device to communicate with the terminal device 110 and network device 120.
  • the communications in the environment 100 may follow any suitable communication standards or protocols, which are already in existence or to be developed in the future, such as Universal Mobile Telecommunications System (UMTS) , long term evolution (LTE) , LTE-Advanced (LTE-A) , the fifth generation (5G) New Radio (NR) , Wireless Fidelity (Wi-Fi) and Worldwide Interoperability for Microwave Access (WiMAX) standards, and employs any suitable communication technologies, including, for example, Multiple-Input Multiple-Output (MIMO) , Orthogonal Frequency Division Multiplexing (OFDM) , time division multiplexing (TDM) , frequency division multiplexing (FDM) , code division multiplexing (CDM) , Bluetooth, ZigBee, and machine type communication (MTC) , enhanced mobile broadband (eMBB) , massive machine type communication (mMTC) , ultra-reliable low latency communication (URLLC) , Carrier Aggregation (CA) , Dual Connectivity (DC) ,
  • FIG. 2 illustrates a signaling flow 200 between the terminal device and the network device according to some example embodiments of the present disclosure.
  • the signaling flow 200 will be described with reference to FIG. 1.
  • the network device 120 generates (205) , for a plurality of terminal devices, a paging message comprising an indication indicating one or more terminal devices to initiate an SDT procedure.
  • the paging message addresses the one or more terminal devices.
  • the terminal device 110 may be one of the one or more terminal devices.
  • the plurality of terminal devices may comprise other terminals devices in addition to the one or more terminal devices and the paging message may address the other terminal devices in addition to the one or more terminal devices.
  • at least one of the other terminal devices may not support SDT or SDT procedure (MT SDT and/or MO SDT procedure) or may not be configured with SDT configuration (e.g., MT SDT and/or MO SDT configuration) .
  • the indication may be one indication common for the one or more terminal devices.
  • the indication may be a common indication to instruct the one or more terminal devices to initiate the SDT procedure.
  • the network device 120 may indicate a common SDT indication in the paging message for the one or more terminal devices addressed in the paging message, rather than indicating individual indication per terminal device.
  • the SDT procedure may be an MT SDT procedure.
  • the SDT procedure may be an MO SDT procedure, for example, in case there is uplink data in a buffer of the terminal device 110 to be transmitted to the network device 120.
  • the network device 120 may determine that at least one of the one or more terminal devices supports the SDT procedure, and then, on this basis, the network device 120 may generate the paging message common for the one or more terminal devices, to instruct the one or more terminal devices to initiate the SDT procedure.
  • the network device 120 may determine that all the one or more terminal devices support the SDT procedure, and then generate the paging message for at least the one or more terminal devices. That is, in this case, the network device 120 may determine that at least one of a plurality of terminal devices supports the SDT procedure, and then the determined at least one terminal device may be considered as the one or more terminal devices as described above.
  • the network device 120 may include the common SDT indication in the paging message, for example, in case there are one or more terminal devices supporting the SDT procedure addressed in the paging message.
  • the paging message may further indicate a type of the SDT procedure.
  • the indication may comprise the type of the SDT procedure.
  • the type of the SDT procedure may comprise a random access (RA) based SDT procedure.
  • the type of the SDT procedure may comprise a configured grant (CG) based SDT procedure.
  • the network device 120 may determine that at least one of the one or more terminal devices supports the type of the SDT procedure, and then on this basis, the network device 120 may generate the paging message comprising the indication indicating the type of the SDT procedure.
  • the network device 120 may comprise, in the paging message, an indication indicating the RA based SDT procedure in case there are one or more terminal devices supporting the RA based SDT procedure addressed in the paging message.
  • the network device 120 may comprise, in the paging message, an indication indicating the CG based SDT procedure in case there are one or more terminal devices supporting the CG based SDT procedure addressed in the paging message.
  • the network device 120 may comprise, in the paging message, an indication indicating both the CG based SDT procedure and the RA based SDT in case there are at least one of the one or more terminal devices supporting the CG based SDT procedure and at least one of the one or more terminal devices supporting the RA based SDT procedure.
  • the network device 120 transmits (210) the paging message to the one or more terminal devices. Accordingly, the terminal device 110 receives (215) the paging message from the network device 120. Then, the terminal device 110 initiates (220) the SDT procedure based on determining to initiate the SDT procedure based on at least the paging message.
  • the terminal device 110 may determine to initiate the SDT procedure if it determines that the paging message is addressing the terminal device 110 with an identity of the terminal device 110. As another example, the terminal device 110 may determine to initiate the SDT procedure if it determines that the paging message comprises the indication indicating the SDT procedure. In other words, if the terminal device 110 supports the SDT procedure, it may initiate the SDT procedure in case it receives the paging message with the indication indicating the SDT procedure.
  • the terminal device 110 may need to check a condition for the SDT procedure. In this case, if the terminal device 120 determines that the condition for the SDT procedure is satisfied, it may determine to initiate the SDT procedure. For example, the terminal device 110 supporting such common SDT indication may check an SDT condition (such as an RSRP threshold, TA validity, a DRB configured for SDT, a data volume, etc. ) after it has received the common indication in the paging message.
  • an SDT condition such as an RSRP threshold, TA validity, a DRB configured for SDT, a data volume, etc.
  • the terminal device 110 may initiate the SDT procedure by transmitting, to the network device 120, a resume request message indicating an initiation of the SDT procedure.
  • the terminal device 110 may be configured by the network device 120 to enable the SDT procedure. In this case, the terminal device 110 may resume one or more bearers configured for the SDT procedure. In this case, if the terminal device 110 is configured with SDT, it may resume the one or more bearers configured for the SDT procedure upon receiving the paging message with the common indication indicating the SDT procedure before transmitting the resume request message, such as, an RRCResumeRequest message. For example, if the terminal device 110 determines to initiate an MT SDT procedure, it may resume one or more bearers configured for the MT SDT procedure. As another example, if the terminal device 110 determines to initiate the MO SDT procedure, it may resume one or more bearers configured for the MO SDT procedure.
  • the terminal device 110 may not be configured by the network device 120 to enable the SDT procedure but it may support the SDT procedure. In this case, the terminal device 110 may resume at least one bearer configured for the terminal device 110. For example, if the terminal device 110 is not configured with SDT but supports SDT, it may resume all the configured bearers upon receiving the paging message with the common indication indicating the SDT procedure before transmitting the RRCResumeRequest message. Alternatively or additionally, the terminal device 110 may determine to initiate a normal resume procedure, that is, a non-SDT resume procedure, and in this case, it may transmit, to the network device 120, a resume request message indicating a non-SDT resume.
  • a normal resume procedure that is, a non-SDT resume procedure
  • the terminal device 110 may not support the SDT procedure. In this case, the terminal device 110 may determine to initiate a non-SDT resume procedure. Then, the terminal device 110 may transmit, to the network device 120, a resume request message indicating a non-SDT resume. Alternatively or additionally, if the terminal device 110 does not support the above common indication received in the paging message, it may determine to initiate a non-SDT resume procedure. Then, the terminal device 110 may transmit, to the network device 120, a resume request message indicating a non-SDT resume.
  • a non-SDT resume procedure is an RRC resume procedure which does not involve SDT specific resources or any indication about SDT or resumption of any radio bearers (except signaling radio bearer (SRB1) ) before the terminal device 110 receives an RRC resume message from the network device 120.
  • SRB1 signaling radio bearer
  • the terminal device 110 may initiate the SDT procedure based on the type of the SDT procedure. For example, if the indication indicates a RA based SDT procedure and the terminal device 110 supports the RA based SDT procedure, the terminal device 110 may initiate the RA based SDT procedure. In other words, the terminal device 110 may initiate the RA based SDT procedure in case it receives the paging message with the common indication indicating the RA based SDT procedure.
  • the terminal device 110 may initiate the CG based SDT procedure.
  • the terminal device 110 may initiate the CG based SDT procedure in case it receives the paging message with the common indication indicating the CG based SDT procedure.
  • the indication may indicate both the RA based SDT procedure and the CG based SDT procedure.
  • the terminal device 110 may determine to initiate one of the RA based SDT procedure or the CG based SDT procedure based on a configuration and a capability of the terminal device 110. Then, the terminal device 110 may initiate the SDT procedure by transmitting, to the network device 120, a resume request message indicating an initiation of the one of the RA based SDT procedure or the CG based SDT procedure.
  • the terminal device 110 may first evaluate whether one or more conditions to initiate CG based SDT procedure are fulfilled, e.g., based on synchronization signal block (SSB) beam availability (based on RSRP of the SSB beam) for which CG SDT resources are configured, uplink timing adjustment validity, etc. As an example, if the CG based SDT procedure cannot be initiated (e.g., at least one of the the one or more conditions to initiate CG based SDT procedure is not fulfilled) , the terminal device 110 may attempt to initiate RA based SDT procedure.
  • SSB synchronization signal block
  • the network device 120 may use either the common indication or individual (for example, per terminal device) indication depending on whether it intends one or more terminal devices supporting SDT in the paging list of the paging message to perform SDT or only specific terminal device (s) to perform SDT, respectively. For example, if the network device 120 determines that the one or more terminal devices are to perform the SDT procedure, it may determine to use the common indication by generating the paging message comprising the indication. As another example if the network device 120 determines that a terminal device, taking the terminal device 110 as an example, among the one or more terminal devices is to perform the SDT procedure, it may determine to use the individual indication. In this case, the network device 120 may transmit, to the terminal device 110, a paging message comprising an individual indication to indicate the terminal device 110 to initiate the SDT procedure.
  • the network device 120 may transmit, to the terminal device 110, a paging message comprising an individual indication to indicate the terminal device 110 to initiate the SDT procedure.
  • the paging message size is decreased because there is no need to indicate SDT per terminal device. Therefore, it is possible to avoid additional signalling overhead, save power consumption and improve transmission efficiency.
  • FIG. 3 illustrates a flowchart 300 of a method implemented at a terminal device 110 according to some embodiments of the present disclosure. For the purpose of discussion, the method 300 will be described from the perspective of the terminal device 110 with reference to FIG. 1.
  • the terminal device 110 receives, from a network device 120, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure.
  • the paging message addresses the one or more terminal devices.
  • the terminal device 110 initiates the SDT procedure based on determining to initiate the SDT procedure based on at least the paging message.
  • the indication is one indication common for the one or more terminal devices.
  • the terminal device 110 may determine to initiate the SDT procedure based on determining that the paging message is addressing the terminal device 110 with an identity of the terminal device 110.
  • the terminal device 110 may determine to initiate the SDT procedure based on determining that the paging message comprises the indication indicating the SDT procedure.
  • the SDT procedure is a mobile terminated (MT) SDT procedure or a mobile originated (MO) SDT procedure.
  • the terminal device 110 supports the SDT procedure, and the terminal device 110 transmits, to the network device 120, a resume request message indicating an initiation of the SDT procedure.
  • the terminal device 110 is configured by the network device 120 to enable the SDT procedure, and the terminal device 110 further resumes one or more bearers configured for the SDT procedure.
  • the terminal device 110 may resume one or more bearers configured for the MT SDT procedure based on determining to initiate an MT SDT procedure.
  • the terminal device 110 may resume one or more bearers configured for the MO SDT procedure based on determining to initiate an MO SDT procedure.
  • the terminal device 110 is not configured by the network device 120 to enable the SDT procedure but supports the SDT procedure, and the terminal device 110 further resumes at least one bearer configured for the terminal device 110.
  • the terminal device 110 supports the SDT procedure, and in order to initiate the SDT procedure, the terminal device 110 may determine to initiate the SDT procedure based on determining that a condition for the SDT procedure is satisfied.
  • the paging message further indicates a type of the SDT procedure, and the terminal device 110 initiates the SDT procedure based on the type of the SDT procedure.
  • the indication comprises the type of the SDT procedure.
  • the type of the SDT procedure comprises a random access, RA, based SDT procedure, a configured grant, CG, based SDT procedure, or any combination of the above-mentioned items.
  • the indication indicates both the RA based SDT procedure and the CG based SDT procedure
  • the terminal device 110 may determine to initiate one of the RA based SDT procedure or the CG based SDT procedure based on a configuration and a capability of the terminal device 110. Then, the terminal device 110 may initiate the SDT procedure by transmitting a resume request message indicating an initiation of the one of the RA based SDT procedure or the CG based SDT procedure.
  • the terminal device 110 is not configured by the network device 120 to enable the SDT procedure but supports the SDT procedure, and the terminal device 110 further transmits, to the network device 120, a resume request message indicating a non-SDT resume.
  • the terminal device 110 does not support the SDT procedure, and the terminal device 110 further transmits, to the network device 120, a resume request message indicating a non-SDT resume.
  • FIG. 4 illustrates a flowchart 400 of a method implemented at a network device 120 according to some embodiments of the present disclosure. For the purpose of discussion, the method 400 will be described from the perspective of the network device 120 with reference to FIG. 1.
  • the network device 120 generates, for a plurality of terminal devices, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure.
  • the paging message addresses the one or more terminal devices.
  • the network device 120 transmits the paging message to the one or more terminal devices.
  • the indication is one indication common for the one or more terminal devices.
  • the SDT procedure is a mobile terminated (MT) SDT procedure or a mobile originated (MO) SDT procedure.
  • the network device 120 may generate the paging message based on determining that at least one of the one or more terminal devices supports the SDT procedure.
  • the paging message further indicates a type of the SDT procedure.
  • the indication comprises the type of the SDT procedure.
  • the type of the SDT procedure comprises a random access, RA, based SDT procedure, a configured grant, CG, based SDT procedure, or any combination of the above-mentioned items.
  • the indication indicates both the RA based SDT procedure and the CG based SDT procedure, and the network device 120 further receives a resume request message indicating an initiation of one of the RA based SDT procedure or the CG based SDT procedure.
  • the network device 120 may, based on determining that at least one of the one or more terminal devices supports the type of the SDT procedure, generate the paging message comprising the indication indicating the type of the SDT procedure.
  • the network device 120 may, based on determining that the one or more terminal devices are to perform the SDT procedure, generate the paging message comprising the indication. In some example embodiments, the network device 120 further, based on determining that a terminal device among the one or more terminal devices is to perform the SDT procedure, transmits, to the terminal device 110, a paging message comprising an individual indication to indicate the terminal device 110 to initiate the SDT procedure.
  • an apparatus capable of performing the method 300 may comprise means for receiving, from a network device 120, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure, wherein the paging message addresses the one or more terminal devices; and means for means for initiating the SDT procedure based on determining to initiate the SDT procedure based on at least the paging message.
  • the indication is one indication common for the one or more terminal devices.
  • the means for determining to initiate the SDT procedure comprises: means for determining to initiate the SDT procedure based on determining that the paging message is addressing the terminal device 110 with an identity of the terminal device 110.
  • the means for determining to initiate the SDT procedure comprises: means for determining to initiate the SDT procedure based on determining that the paging message comprises the indication indicating the SDT procedure.
  • the SDT procedure is a mobile terminated (MT) SDT procedure or a mobile originated (MO) SDT procedure.
  • the terminal device 110 supports the SDT procedure
  • the means for initiating the SDT procedure comprise means for transmitting, to the network device 120, a resume request message indicating an initiation of the SDT procedure.
  • the terminal device 110 is configured by the network device 120 to enable the SDT procedure, and the apparatus further comprises: means for resuming one or more bearers configured for the SDT procedure.
  • the means for resuming the one or more bearers configured for the SDT procedure comprises one of the following: means for, based on determining to initiate an MT SDT procedure, resuming one or more bearers configured for the MT SDT procedure; or means for, based on determining to initiate an MO SDT procedure, resuming one or more bearers configured for the MO SDT procedure.
  • the terminal device 110 is not configured by the network device 120 to enable the SDT procedure but supports the SDT procedure, and the apparatus further comprises: means for resuming at least one bearer configured for the terminal device 110.
  • the terminal device 110 supports the SDT procedure
  • the means for determining to initiate the SDT procedure comprises: means for determining to initiate the SDT procedure based on determining that a condition for the SDT procedure is satisfied.
  • the paging message further indicates a type of the SDT procedure
  • the means for initiating the SDT procedure compries: means for initiating the SDT procedure based on the type of the SDT procedure.
  • the indication comprises the type of the SDT procedure.
  • the type of the SDT procedure comprises at least one of the following: a random access, RA, based SDT procedure; or a configured grant, CG, based SDT procedure.
  • the indication indicates both the RA based SDT procedure and the CG based SDT procedure
  • the means for initiating the SDT procedure comprises: means for determining to initiate one of the RA based SDT procedure or the CG based SDT procedure based on a configuration and a capability of the terminal device 110; and means for initiating the SDT procedure by transmitting a resume request message indicating an initiation of the one of the RA based SDT procedure or the CG based SDT procedure.
  • the terminal device 110 is not configured by the network device 120 to enable the SDT procedure but supports the SDT procedure, and the apparatus further comprises: means for transmitting, to the network device 120, a resume request message indicating a non-SDT resume.
  • the terminal device 110 does not support the SDT procedure, and the apparatus further comprises: means for transmitting, to the network device 120, a resume request message indicating a non-SDT resume.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 300.
  • the means comprises at least one processor and at least one memory including computer program code. The at least one memory and computer program code are configured to, with the at least one processor, cause the performance of the apparatus.
  • an apparatus capable of performing the method 400 may comprise means for performing the respective steps of the method 400.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises means for generating, for a plurality of terminal devices, a paging message comprising an indication indicating one or more terminal devices to initiate a small data transmission, SDT, procedure, wherein the paging message addresses the one or more terminal devices; and means for transmitting the paging message to the one or more terminal devices.
  • the indication is one indication common for the one or more terminal devices.
  • the SDT procedure is a mobile terminated (MT) SDT procedure or a mobile originated (MO) SDT procedure.
  • the means for generating the paging message comprises: means for, based on determining that at least one of the one or more terminal devices supports the SDT procedure, generating the paging message.
  • the paging message further indicates a type of the SDT procedure.
  • the indication comprises the type of the SDT procedure.
  • the type of the SDT procedure comprises at least one of the following: a random access, RA, based SDT procedure; or a configured grant, CG, based SDT procedure.
  • the indication indicates both the RA based SDT procedure and the CG based SDT procedure, and apparatus further compries: means for receiving a resume request message indicating an initiation of one of the RA based SDT procedure or the CG based SDT procedure.
  • the means for generating the paging message compries: means for, based on determining that at least one of the one or more terminal devices supports the type of the SDT procedure, generating the paging message comprising the indication indicating the type of the SDT procedure.
  • the means for generating the paging message comprise: means for, based on determining that the one or more terminal devices are to perform the SDT procedure, generating the paging message comprising the indication.
  • the apparatus further compries: means for, based on determining that a terminal device 110 among the one or more terminal devices is to perform the SDT procedure, transmitting, to the terminal device 110, a paging message comprising an individual indication to indicate the terminal device 110 to initiate the SDT procedure.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 400.
  • the means comprises at least one processor and at least one memory including computer program code. The at least one memory and computer program code are configured to, with the at least one processor, cause the performance of the apparatus.
  • FIG. 5 illustrates a simplified block diagram of a device 500 that is suitable for implementing some example embodiments of the present disclosure.
  • the device 500 may be provided to implement the communication device, for example, the terminal device 110, or the network device 120 as shown in FIG. 1.
  • the device 500 includes one or more processors 510, one or more memories 520 coupled to the processor 510, and one or more communication modules 540 coupled to the processor 510.
  • the communication module 540 is for bidirectional communications.
  • the communication module 540 has at least one antenna to facilitate communication.
  • the communication interface may represent any interface that is necessary for communication with other network elements.
  • the processor 510 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 500 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • the memory 520 may include one or more non-volatile memories and one or more volatile memories.
  • the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 524, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , and other magnetic storage and/or optical storage.
  • the volatile memories include, but are not limited to, a random access memory (RAM) 522 and other volatile memories that will not last in the power-down duration.
  • a computer program 530 includes computer executable instructions that are executed by the associated processor 510.
  • the program 530 may be stored in the ROM 524.
  • the processor 510 may perform any suitable actions and processing by loading the program 530 into the RAM 522.
  • the embodiments of the present disclosure may be implemented by means of the program 530 so that the device 500 may perform any process of the disclosure as discussed with reference to FIG. 2.
  • the embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • the program 530 may be tangibly contained in a computer readable medium which may be included in the device 500 (such as in the memory 520) or other storage devices that are accessible by the device 500.
  • the device 500 may load the program 530 from the computer readable medium to the RAM 522 for execution.
  • the computer readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • FIG. 6 illustrates a block diagram of an example of a computer readable medium 600 in accordance with some example embodiments of the present disclosure.
  • the computer readable medium 600 has the program 530 stored thereon. It is noted that although the computer readable medium 600 is depicted in form of CD or DVD in FIG. 6, the computer readable medium 600 may be in any other form suitable for carry or hold the program 530.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the method as described above with reference to any of FIGS. 4-5.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the computer program codes or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above.
  • Examples of the carrier include a signal, computer readable medium, and the like.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • non-transitory is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs.ROM) .

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

Abstract

Des modes de réalisation de la présente divulgation concernent la transmission de petites données (SDT) Un dispositif terminal reçoit, en provenance d'un dispositif de réseau, un message de radiomessagerie comprenant une indication signalant à un ou à plusieurs dispositifs terminaux de lancer une procédure de transmission de petites données (SDT), le message de radiomessagerie s'adressant au ou aux dispositifs terminaux. De plus, le dispositif terminal lance la procédure de SDT suite à la détermination de lancer la procédure de SDT sur la base au moins du message de radiomessagerie. Par conséquent, il est possible d'éviter un surdébit de signalisation supplémentaire, d'économiser la consommation d'énergie et d'améliorer l'efficacité de transmission.
PCT/CN2023/072473 2023-01-16 2023-01-16 Transmission de petites données Ceased WO2024152181A1 (fr)

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CN202380091329.0A CN120548758A (zh) 2023-01-16 2023-01-16 小数据传输
PCT/CN2023/072473 WO2024152181A1 (fr) 2023-01-16 2023-01-16 Transmission de petites données

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106792608A (zh) * 2016-09-29 2017-05-31 展讯通信（上海）有限公司 小数据包传输方法、装置及终端
US20190159168A1 (en) * 2016-08-31 2019-05-23 Huawei Technologies Co., Ltd. Small data transmission method and related device and system
US20220377800A1 (en) * 2021-05-04 2022-11-24 FG Innovation Company Limited User equipment and method for small data transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190159168A1 (en) * 2016-08-31 2019-05-23 Huawei Technologies Co., Ltd. Small data transmission method and related device and system
CN106792608A (zh) * 2016-09-29 2017-05-31 展讯通信（上海）有限公司 小数据包传输方法、装置及终端
US20220377800A1 (en) * 2021-05-04 2022-11-24 FG Innovation Company Limited User equipment and method for small data transmission

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