WO2024113189A1 - 小数据传输sdt方法、装置、通信设备及存储介质 - Google Patents
小数据传输sdt方法、装置、通信设备及存储介质 Download PDFInfo
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- WO2024113189A1 WO2024113189A1 PCT/CN2022/135176 CN2022135176W WO2024113189A1 WO 2024113189 A1 WO2024113189 A1 WO 2024113189A1 CN 2022135176 W CN2022135176 W CN 2022135176W WO 2024113189 A1 WO2024113189 A1 WO 2024113189A1
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- sdt
- configuration information
- parameter threshold
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- data transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
- H04L5/0096—Indication of changes in allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/115—Grant-free or autonomous transmission
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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- 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
- the present disclosure relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular to a small data transmission (SDT) method, apparatus, communication equipment and storage medium.
- SDT small data transmission
- the terminal In the communication system, the terminal is allowed to perform small data transmission (SDT) in the inactive state (INACTIVE) of the radio resource control (RRC) and the idle state (IDLE) of the RRC. In this way, the terminal can complete the data transmission without entering the RRC connected state, so as to reduce the waste of time and frequency resources, shorten the data transmission delay and save the terminal energy consumption.
- SDT small data transmission
- RRC radio resource control
- IDLE idle state
- the embodiments of the present disclosure disclose a small data transmission (SDT) method, apparatus, communication equipment and storage medium.
- SDT small data transmission
- a small data transmission (SDT) method is provided, wherein the method is performed by an access network device, and the method includes:
- the configuration information is used to indicate a parameter threshold of a triggering condition for triggering SDT.
- the sending of configuration information to the terminal includes at least one of the following:
- the configuration information is sent to the terminal through a broadcast message.
- the configuration information includes bearer indication information for indicating a data radio bearer DRB or a signaling radio bearer SRB.
- the configuration information also indicates whether SDT can be initiated; the SDT includes mobile calling small data transmission MO SDT and/or mobile called small data transmission MT SDT.
- the parameter threshold includes at least one of the following:
- SINR value Signal-to-interference ratio
- the parameter threshold includes at least one of the following:
- a first parameter threshold wherein the first parameter threshold is a threshold used to determine whether to trigger a mobile terminating small data transmission MT SDT;
- the second parameter threshold value wherein the second parameter threshold value is a threshold value used to determine whether to trigger the mobile originating small data transmission MO SDT.
- the first parameter threshold is equal to the second parameter threshold.
- the parameter threshold is a threshold used to determine data transmission through a random access process; and/or the parameter threshold is a threshold used to determine data transmission by configuring authorized CG resources.
- the configuration information is also used to indicate uplink resources of SDT; the uplink resources are used to initiate initial access, or the uplink resources are used to send uplink data.
- the configuration of the uplink resource includes random access resource information, configuration grant resource information and/or demodulation reference signal DMRS information.
- a small data transmission SDT method is provided, wherein the method is performed by a terminal, and the method includes:
- the configuration information is used to indicate a parameter threshold of a triggering condition for triggering SDT.
- the method further comprises:
- determining the configuration information includes at least one of the following:
- the configuration information is determined according to the received information sent by the access network device.
- the receiving the configuration information sent by the access network device includes at least one of the following:
- the configuration information sent by the access network device is received through a broadcast message.
- the configuration information includes bearer indication information for indicating a data radio bearer DRB or a signaling radio bearer SRB.
- the configuration information also indicates whether SDT can be initiated; the SDT includes mobile calling small data transmission MO SDT and/or mobile called small data transmission MT SDT.
- the parameter threshold includes at least one of the following:
- SINR value Signal-to-interference ratio
- the parameter threshold includes at least one of the following:
- the first parameter threshold is a threshold used to determine whether to trigger the mobile terminating small data transmission MT SDT.
- the second parameter threshold is the threshold used to determine whether to trigger the mobile outgoing small data transmission MO SDT.
- the first parameter threshold is equal to the second parameter threshold.
- the parameter threshold is a threshold used to determine data transmission through a random access process; and/or, the parameter threshold is a threshold used to determine data transmission by configuring authorized CG resources.
- the configuration information further indicates an uplink resource of the SDT; the uplink resource is used to initiate initial access; or the uplink resource is used to send uplink data.
- the configuration of the uplink resource includes random access resource information, configuration grant resource information and/or demodulation reference signal DMRS information.
- performing SDT according to the configuration information includes:
- the SDT is executed according to a trigger condition determined based on the configuration information.
- the trigger condition includes at least one of the following:
- the first trigger condition includes: in response to a signal measurement result of the terminal being greater than or equal to the parameter threshold, executing SDT;
- the second trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, performing SDT based on the uplink resources corresponding to MO SDT;
- the third trigger condition includes: in response to the configuration information configuring an uplink resource, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, performing SDT based on the uplink resource;
- a fourth trigger condition includes: in response to a bearer of the terminal being configured to allow use of MT SDT and MO SDT, performing SDT based on an uplink resource corresponding to MO SDT;
- a fifth trigger condition includes: in response to the configuration information, uplink resources are configured, and SDT is performed based on the uplink resources.
- the method further comprises:
- the predetermined condition includes one of the following:
- the signal measurement result of the terminal is less than or equal to the parameter threshold
- the number of times the terminal sends data is greater than or equal to the quantity threshold
- the scheduled timer has expired.
- the number of transmissions includes one of the following:
- the number of times data is sent for the first time during the SDT process.
- the start condition of the timer includes one of the following:
- the random access preamble is sent for the first time.
- the stop condition of the timer includes one of the following:
- a confirmation message of a random access procedure is received.
- An indication message indicating that data reception is complete is received.
- the method further comprises:
- the preset threshold is used to determine a triggering condition for performing SDT based on the uplink resource.
- the measurement signal corresponding to the signal measurement result includes one of the following:
- the measurement signal corresponding to the signal measurement result is a synchronization signal block SSB or a channel state information reference signal CSI-RS.
- a small data transmission SDT device wherein the device includes:
- a sending module used for sending configuration information to the terminal
- the configuration information is used to indicate a parameter threshold of a triggering condition for triggering SDT.
- a small data transmission SDT device wherein the device includes:
- a receiving module used for executing SDT according to the configuration information
- the configuration information is used to indicate a parameter threshold of a triggering condition for triggering SDT.
- a communication device including:
- a memory for storing instructions executable by the processor
- the processor is configured to implement the method described in any embodiment of the present disclosure when running the executable instructions.
- a computer storage medium stores a computer executable program, and when the executable program is executed by a processor, the method described in any embodiment of the present disclosure is implemented.
- configuration information is sent to a terminal; wherein the configuration information is used to indicate a parameter threshold of a trigger condition for triggering SDT.
- the configuration information indicates the parameter threshold of a trigger condition for triggering SDT
- the terminal can determine the trigger condition for triggering SDT based on the parameter threshold of the network configuration.
- SDT can be triggered.
- the terminal can execute SDT under the control of the network side. Compared with SDT that is not controlled by the network, the failure of SDT is reduced, and the transmission reliability of SDT can be improved.
- Fig. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment.
- Fig. 2 is a schematic flow chart showing a small data transmission SDT method according to an exemplary embodiment.
- Fig. 3 is a schematic flow chart showing a small data transmission SDT method according to an exemplary embodiment.
- Fig. 4 is a schematic flow chart showing a small data transmission SDT method according to an exemplary embodiment.
- Fig. 5 is a schematic flow chart showing a small data transmission SDT method according to an exemplary embodiment.
- Fig. 6 is a schematic flow chart showing a small data transmission SDT method according to an exemplary embodiment.
- Fig. 7 is a schematic flow chart showing a small data transmission SDT method according to an exemplary embodiment.
- Fig. 8 is a schematic flow chart showing a small data transmission SDT method according to an exemplary embodiment.
- Fig. 9 is a schematic diagram showing the structure of a terminal according to an exemplary embodiment.
- Fig. 10 is a block diagram of a base station according to an exemplary embodiment.
- first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
- first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
- word "if” as used herein may be interpreted as "at the time of” or "when” or "in response to determining”.
- FIG1 shows a schematic diagram of the structure of a wireless communication system provided by an embodiment of the present disclosure.
- the wireless communication system is a communication system based on mobile communication technology, and the wireless communication system may include: a plurality of user equipments 110 and a plurality of base stations 120 .
- the user equipment 110 may be a device that provides voice and/or data connectivity to a user.
- the user equipment 110 may communicate with one or more core networks via a radio access network (RAN).
- RAN radio access network
- the user equipment 110 may be an IoT user equipment, such as a sensor device, a mobile phone, and a computer with an IoT user equipment, for example, a fixed, portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted device.
- a station STA
- a subscriber unit a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote user equipment (remote terminal), an access terminal, a user device (user terminal), a user agent, a user device, or a user equipment (user equipment).
- the user equipment 110 may also be a device of an unmanned aerial vehicle.
- the user device 110 may be a vehicle-mounted device, such as a driving computer with wireless communication function, or a wireless user device connected to a driving computer.
- the user device 110 may be a roadside device, such as a street lamp, a signal lamp, or other roadside device with wireless communication function.
- the base station 120 may be a network-side device in a wireless communication system.
- the wireless communication system may be a 4th generation mobile communication (4G) system, also known as a long term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new air interface system or a 5G NR system. Alternatively, the wireless communication system may be a next generation system of the 5G system.
- the access network in the 5G system may be called NG-RAN (New Generation-Radio Access Network).
- the base station 120 can be an evolved base station (eNB) adopted in a 4G system.
- the base station 120 can also be a base station (gNB) adopting a centralized distributed architecture in a 5G system.
- the base station 120 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed units, DU).
- the centralized unit is provided with a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, a radio link layer control protocol (Radio Link Control, RLC) layer, and a media access control (Media Access Control, MAC) layer protocol stack;
- the distributed unit is provided with a physical (Physical, PHY) layer protocol stack.
- the specific implementation method of the base station 120 is not limited in the embodiments of the present disclosure.
- a wireless connection may be established between the base station 120 and the user equipment 110 via a wireless air interface.
- the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or, the wireless air interface may also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.
- an E2E (End to End) connection may also be established between the user devices 110.
- V2X vehicle-to-everything
- V2V vehicle to vehicle
- V2I vehicle to Infrastructure
- V2P vehicle to pedestrian
- the above-mentioned user equipment can be considered as the terminal equipment of the following embodiments.
- the wireless communication system may further include a network management device 130 .
- the network management device 130 may be a core network device in a wireless communication system, for example, the network management device 130 may be a mobility management entity (MME) in an evolved packet core (EPC). Alternatively, the network management device may also be other core network devices, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF) or a home subscriber server (HSS).
- SGW serving gateway
- PGW public data network gateway
- PCRF policy and charging rules function
- HSS home subscriber server
- the embodiments of the present disclosure list multiple implementation methods to clearly illustrate the technical solutions of the embodiments of the present disclosure.
- the multiple embodiments provided by the embodiments of the present disclosure can be executed separately, or can be executed together with the methods of other embodiments of the embodiments of the present disclosure, or can be executed together with some methods in other related technologies separately or in combination; the embodiments of the present disclosure do not limit this.
- the terminal in SDT, according to the resources configured by the network side, when the terminal is in the RRC IDLE or INACTIVE state, the terminal can directly send data to the network side in a predetermined manner.
- the predetermined manner includes one of the following:
- MsgA is sent via the 2-step random access procedure of initial access (or, it can be called 2-step RACH SDT);
- PUSCH Physical Uplink Shared Channel
- CG Configuration Grant
- PUR Preallocated Uplink Resource
- the network side sends a downlink paging message to allow the terminal to initiate a connection recovery (or establishment) process in the RRC IDLE or RRC INACTIVE state. This allows the terminal to remain in the RRC IDLE or RRC INACTIVE state and receive downlink data sent by the network side.
- This process is called mobile terminated (MT) SDT.
- MT-SDT After triggering MT-SDT, the terminal receives data by restoring the bearer corresponding to MT-SDT.
- this embodiment provides a small data transmission SDT method, wherein the method is performed by an access network device, and the method includes:
- Step 21 Send configuration information to the terminal
- the configuration information is used to indicate a parameter threshold of a triggering condition for triggering SDT.
- the terminal involved in the present disclosure may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a road side unit (RSU, Road Side Unit), a smart home terminal, an industrial sensor device and/or a medical device, etc.
- the terminal may be a Redcap terminal or a predetermined version of a new air interface NR terminal (for example, an R17 NR terminal).
- the access network equipment involved in the present disclosure may be a base station, and the base station may be various types of base stations, for example, a base station of a third generation mobile communication (3G) network, a base station of a fourth generation mobile communication (4G) network, a base station of a fifth generation mobile communication (5G) network, or other evolved base stations.
- 3G third generation mobile communication
- 4G fourth generation mobile communication
- 5G fifth generation mobile communication
- the trigger condition includes at least one of the following:
- the first trigger condition includes: in response to a signal measurement result of the terminal being greater than or equal to the parameter threshold, executing SDT;
- the second trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, performing SDT based on the uplink resources corresponding to MO SDT;
- the third trigger condition includes: in response to the configuration information configuring an uplink resource, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, performing SDT based on the uplink resource;
- a fourth trigger condition includes: in response to a bearer of the terminal being configured to allow use of MT SDT and MO SDT, performing SDT based on an uplink resource corresponding to MO SDT;
- a fifth trigger condition includes: in response to the configuration information, uplink resources are configured, and SDT is performed based on the uplink resources.
- the first trigger condition includes: executing MT and/or MO SDT in response to a signal measurement result of the terminal being greater than or equal to the parameter threshold.
- the second trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, executing MO SDT based on the uplink resources corresponding to MO SDT.
- the third trigger condition includes: in response to the configuration information, uplink resources are configured, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, and MO SDT is performed based on the uplink resources.
- the fourth trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, executing MO SDT based on the uplink resources corresponding to MO SDT.
- the fifth trigger condition includes: configuring uplink resources in response to configuration information, and executing MO SDT based on the uplink resources.
- configuration information is sent to the terminal via an RRC message, wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering SDT.
- the configuration information is sent to the terminal via a terminal-specific message, wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering SDT.
- the dedicated message may be an RRC release message.
- the configuration information is sent to the terminal via a broadcast message, wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering SDT.
- the broadcast message may be a system message SIB1.
- configuration information is sent to a terminal; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the parameter threshold includes at least one of: a reference signal received strength (RSRP, Reference Signal Received Power) value; a reference signal received quality (RSRQ, Reference Signal Received Quality) value; and a signal to interference ratio (SINR, Signal to Interference and Noise Ratio) value.
- RSRP Reference Signal Received Power
- RSRQ Reference Signal Received Quality
- SINR Signal to Interference and Noise Ratio
- configuration information is sent to a terminal; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the configuration information includes bearer indication information, which is used to indicate a data radio bearer (DRB) or a signaling radio bearer (SRB).
- DRB data radio bearer
- SRB signaling radio bearer
- the SDT includes mobile calling small data transmission MO SDT and/or mobile called small data transmission MT SDT.
- configuration information is sent to a terminal; wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering SDT, and wherein the configuration information includes bearer indication information for indicating a DRB or an SRB.
- the configuration information when the configuration information includes bearer indication information, the configuration information may also indicate whether a mobile originating small data transmission MO SDT (or, uplink SDT) can be initiated.
- a network-side device may send configuration information to a terminal device, the configuration information being used to indicate a parameter threshold of a trigger condition for triggering SDT, and the configuration information may also indicate that a mobile originating small data transmission MO SDT (or, uplink SDT) can be initiated.
- the terminal When the terminal receives the configuration information, the terminal may initiate a mobile originating small data transmission MO SDT according to the trigger condition.
- the configuration information may also indicate that a mobile originating small data transmission MO SDT (or, uplink SDT) cannot be initiated, the terminal does not initiate a mobile originating small data transmission MO SDT even if the terminal meets the trigger condition.
- configuration information is sent to a terminal; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the configuration information includes bearer indication information for indicating DRB or SRB; in response to the configuration information including the bearer indication information, the configuration information also indicates whether indication information of a mobile called small data transmission MT SDT can be initiated.
- configuration information is sent to the terminal; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the configuration information includes bearer indication information of MT SDT, which is used to indicate DRB or SRB; in response to the configuration information including the bearer indication information, the configuration information also indicates whether it is possible to initiate indication information of a mobile originating small data transmission MO SDT (or, uplink SDT).
- configuration information is sent to the terminal; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the parameter threshold includes at least one of the following: a first parameter threshold, wherein the first parameter threshold is a threshold for determining whether to trigger a mobile called small data transmission MT SDT; and a second parameter threshold, wherein the second parameter threshold is a threshold for determining whether to trigger a mobile calling small data transmission MO SDT.
- configuration information is sent to a terminal; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the parameter threshold includes at least one of the following: a first parameter threshold, wherein the first parameter threshold is a threshold for determining whether to trigger a mobile called small data transmission MT SDT; and a second parameter threshold, wherein the second parameter threshold is a threshold for determining whether to trigger a mobile calling small data transmission MO SDT; the first parameter threshold is equal to the second parameter threshold.
- configuration information is sent to a terminal; wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering SDT; the parameter threshold includes: a first parameter threshold, wherein the first parameter threshold is a threshold for determining whether to trigger mobile called small data transmission MT SDT; the parameter threshold is a threshold for determining data transmission through a random access process; and/or the parameter threshold is a threshold for determining data transmission through configuring authorized CG resources.
- configuration information is sent to the terminal; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the parameter threshold includes: a second parameter threshold, wherein the second parameter threshold is a threshold for determining whether to trigger mobile originating small data transmission MO SDT; the parameter threshold is a threshold for determining data transmission through a random access process; and/or the parameter threshold is a threshold for determining data transmission through configuring authorized CG resources.
- configuration information is sent to a terminal; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the configuration information is also used to indicate an uplink resource of MO SDT; wherein the uplink resource is used to initiate initial access, or the uplink resource is used to send uplink data.
- configuration information is sent to the terminal; wherein the configuration information is used to indicate at least one of the following: a parameter threshold of a triggering condition for triggering SDT; an uplink resource of SDT; the uplink resource is used to initiate initial access; and the uplink resource is used to send uplink data.
- the configuration of the uplink resources includes random access resource information, configuration authorization resource information and/or demodulation reference signal (DMRS) information.
- the random access resource information may be information on physical random access channel (PRACH) time-frequency resources and/or PRACH code domain resources (e.g., preamble code number).
- the configuration authorization resource information may be information on physical uplink shared channel (PUSCH) time-frequency resources or PUSCH code domain resources (e.g., Radio Network Temporary Identity (RNTI)).
- PUSCH physical uplink shared channel
- RNTI Radio Network Temporary Identity
- configuration information is sent to a terminal; wherein the configuration information is used to indicate a parameter threshold of a trigger condition for triggering SDT.
- the configuration information indicates the parameter threshold of a trigger condition for triggering SDT
- the terminal can determine the trigger condition for triggering SDT based on the parameter threshold of the network configuration.
- SDT can be triggered.
- the terminal can execute SDT under the control of the network side. Compared with SDT that is not controlled by the network, the failure of SDT is reduced, and the transmission reliability of SDT can be improved.
- this embodiment provides a small data transmission SDT method, wherein the method is performed by an access network device, and the method includes:
- Step 31 Send configuration information to the terminal; wherein the configuration information is used to indicate a parameter threshold of a trigger condition for triggering SDT, and the configuration information is also used to indicate at least one of the following:
- Bearer indication information used to indicate a data radio bearer DRB or a signaling radio bearer SRB.
- the uplink resources of SDT are used to initiate initial access or to send uplink data.
- configuration information is sent to the terminal; wherein the configuration information is used to indicate a parameter threshold of a trigger condition for triggering MO SDT, and the configuration information is also used to indicate at least one of the following: bearer indication information, used to indicate a data radio bearer DRB or a signaling radio bearer SRB; and an uplink resource of MO SDT, wherein the uplink resource is used to initiate initial access or to send uplink data.
- the uplink resources are not limited to the uplink resources of MO SDT, but can also be the uplink resources of MT SDT, or other uplink resources, which is not limited in the present disclosure.
- the configuration of the uplink resources includes random access resource information, configuration authorization resource information and/or demodulation reference signal (DMRS) information.
- the random access resource information may be information on physical random access channel (PRACH) time-frequency resources and/or PRACH code domain resources (e.g., preamble code number).
- the configuration authorization resource information may be information on physical uplink shared channel (PUSCH) time-frequency resources or PUSCH code domain resources (e.g., Radio Network Temporary Identity (RNTI)).
- PUSCH physical uplink shared channel
- RNTI Radio Network Temporary Identity
- this embodiment provides a small data transmission SDT method, wherein the method is executed by a terminal, and the method includes:
- Step 41 executing SDT according to the configuration information
- the configuration information is used to indicate a parameter threshold of a triggering condition for triggering SDT.
- the terminal involved in the present disclosure may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a road side unit (RSU, Road Side Unit), a smart home terminal, an industrial sensor device and/or a medical device, etc.
- the terminal may be a Redcap terminal or a predetermined version of a new air interface NR terminal (for example, an R17 NR terminal).
- the access network equipment involved in the present disclosure may be a base station, and the base station may be various types of base stations, for example, a base station of a third generation mobile communication (3G) network, a base station of a fourth generation mobile communication (4G) network, a base station of a fifth generation mobile communication (5G) network, or other evolved base stations.
- 3G third generation mobile communication
- 4G fourth generation mobile communication
- 5G fifth generation mobile communication
- the configuration information is determined according to a predetermined communication protocol. According to the configuration information, the SDT is executed; wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering the SDT.
- the configuration information sent by the access network device is received.
- the SDT is executed; wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering the SDT.
- the trigger condition includes at least one of the following:
- the first trigger condition includes: in response to a signal measurement result of the terminal being greater than or equal to the parameter threshold, executing SDT;
- the second trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, performing SDT based on the uplink resources corresponding to MO SDT;
- the third trigger condition includes: in response to the configuration information configuring an uplink resource, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, performing SDT based on the uplink resource;
- a fourth trigger condition includes: in response to a bearer of the terminal being configured to allow use of MT SDT and MO SDT, performing SDT based on an uplink resource corresponding to MO SDT;
- a fifth trigger condition includes: in response to the configuration information, uplink resources are configured, and SDT is performed based on the uplink resources.
- the first trigger condition includes: executing MT and/or MO SDT in response to a signal measurement result of the terminal being greater than or equal to the parameter threshold.
- the second trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, executing MO SDT based on the uplink resources corresponding to MO SDT.
- the third trigger condition includes: in response to the configuration information, uplink resources are configured, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, and MO SDT is performed based on the uplink resources.
- the fourth trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, executing MO SDT based on the uplink resources corresponding to MO SDT.
- the fifth trigger condition includes: configuring uplink resources in response to configuration information, and executing MO SDT based on the uplink resources.
- the configuration information sent by the access network device is received through an RRC message, wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering SDT.
- the configuration information sent by the access network device is received via a terminal dedicated message, wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering SDT.
- the dedicated message may be an RRC release message.
- the configuration information sent by the access network device is received via a broadcast message, wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering SDT.
- the broadcast message may be a system message SIB1.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the configuration information includes bearer indication information, which is used to indicate a data radio bearer (DRB) or a signaling radio bearer (SRB).
- DRB data radio bearer
- SRB signaling radio bearer
- the configuration information also indicates whether SDT can be initiated; the SDT includes mobile calling small data transmission MO SDT and/or mobile called small data transmission MT SDT.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the configuration information includes bearer indication information for indicating DRB or SRB; in response to the configuration information including the bearer indication information, the configuration information also indicates whether a mobile originating small data transmission MO SDT (or, uplink SDT) can be initiated.
- the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the configuration information includes bearer indication information for indicating DRB or SRB; in response to the configuration information including the bearer indication information, the configuration information also indicates whether a mobile originating small data transmission MO SDT (or, uplink SDT) can be initiated.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the configuration information includes bearer indication information for indicating DRB or SRB; in response to the configuration information including the bearer indication information, the configuration information also indicates whether indication information of mobile called small data transmission MT SDT can be initiated.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the configuration information includes bearer indication information of MO SDT, which is used to indicate DRB or SRB; in response to the configuration information including the bearer indication information, the configuration information also indicates whether the indication information of the mobile called small data transmission MT SDT can be initiated.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the parameter threshold includes at least one of the following: a first parameter threshold, wherein the first parameter threshold is a threshold for determining whether to trigger a mobile called small data transmission MT SDT; and a second parameter threshold, wherein the second parameter threshold is a threshold for determining whether to trigger a mobile calling small data transmission MO SDT.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the parameter threshold includes at least one of the following: a first parameter threshold, wherein the first parameter threshold is a threshold for determining whether to trigger a mobile called small data transmission MT SDT; and a second parameter threshold, wherein the second parameter threshold is a threshold for determining whether to trigger a mobile calling small data transmission MO SDT; the first parameter threshold is equal to the second parameter threshold.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the parameter threshold includes: a first parameter threshold, wherein the first parameter threshold is a threshold for determining whether to trigger mobile called small data transmission MT SDT; the first parameter threshold is a threshold for determining data transmission through a random access process; and/or the first parameter threshold is a threshold for determining data transmission through configuring authorized CG resources.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering SDT; the parameter threshold includes: a second parameter threshold, wherein the second parameter threshold is a threshold for determining whether to trigger mobile originating small data transmission MO SDT; the second parameter threshold is a threshold for determining data transmission through a random access process; and/or, the parameter threshold is a threshold for determining data transmission through configuration of authorized CG resources.
- the first parameter threshold may be the same as the second parameter threshold, that is, the relevant configuration parameters for determining whether to initiate the MT-SDT process and the relevant configuration parameters for determining whether to initiate the MO SDT process may be configured through the same signaling, and the configuration parameters may be, for example, parameter thresholds or bearer indications.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT; the configuration information is also used to indicate an uplink resource of MO SDT; wherein the uplink resource is used to initiate initial access, or the uplink resource is used to send uplink data.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate at least one of the following: a parameter threshold of a trigger condition for triggering SDT; an uplink resource of SDT; the uplink resource is used to initiate initial access; and the uplink resource is used to send uplink data.
- the configuration of the uplink resources includes random access resource information, configuration authorization resource information and/or demodulation reference signal (DMRS) information.
- the random access resource information may be information on physical random access channel (PRACH) time-frequency resources and/or PRACH code domain resources (e.g., preamble code number).
- the configuration authorization resource information may be information on physical uplink shared channel (PUSCH) time-frequency resources or PUSCH code domain resources (e.g., Radio Network Temporary Identity (RNTI)).
- PUSCH physical uplink shared channel
- RNTI Radio Network Temporary Identity
- SDT is performed according to a trigger condition determined based on the configuration information; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT.
- the trigger condition includes at least one of the following:
- the first trigger condition includes: in response to a signal measurement result of the terminal being greater than or equal to the parameter threshold, executing SDT;
- the second trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, performing SDT based on the uplink resources corresponding to MO SDT;
- the third trigger condition includes: in response to the configuration information configuring an uplink resource, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, performing SDT based on the uplink resource;
- a fourth trigger condition includes: in response to a bearer of the terminal being configured to allow use of MT SDT and MO SDT, performing SDT based on an uplink resource corresponding to MO SDT;
- a fifth trigger condition includes: in response to the configuration information, uplink resources are configured, and SDT is performed based on the uplink resources.
- the measurement signal corresponding to the signal measurement result is a synchronization signal block (SSB, Synchronous Signal Block) or a channel state information reference signal (CSI-RS, Channel State Information Reference Signaling).
- SSB Synchronous Signal Block
- CSI-RS Channel State Information Reference Signaling
- SDT is performed; wherein the configuration information is used to indicate: a parameter threshold of the triggering condition for triggering SDT.
- a random access process based on a predetermined random access resource is performed; wherein the predetermined condition includes one of the following: a signal measurement result of the terminal is less than or equal to the parameter threshold; the number of data transmissions of the terminal is greater than or equal to the quantity threshold; and a predetermined timer times out.
- the number of transmissions includes one of the following:
- the number of times data is sent for the first time during the SDT process.
- the random access preamble code will be sent multiple times.
- first data transmission is unsuccessful, multiple retransmissions will be caused.
- multiple first data transmissions are performed through CG resources.
- the start condition of the timer includes one of the following:
- the random access preamble is sent for the first time.
- the stop condition of the timer includes one of the following:
- a confirmation message of a random access procedure is received.
- An indication message indicating that data reception is complete is received.
- the state transition instruction may be sent via one of the following messages: an RRC release message, an RRC configuration message, and an RRC recovery message.
- the confirmation message may be Msg4 of 4-step random access or MsgB of 2-step random access.
- the indication information may be C-RNTI PDCCH indication information.
- the measurement signal corresponding to the signal measurement result includes one of the following:
- the designated measurement object may be a service measurement object.
- the measurement signal corresponding to the signal measurement result is a synchronization signal block SSB or a channel state information reference signal CSI-RS.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering SDT.
- the parameter threshold is ignored; wherein the preset threshold is used to determine the triggering condition for performing SDT based on the uplink resources.
- SDT is performed according to configuration information; wherein the configuration information is used to indicate a parameter threshold of a trigger condition for triggering SDT.
- the configuration information indicates the parameter threshold of a trigger condition for triggering SDT
- the terminal can determine the trigger condition for triggering SDT based on the parameter threshold of the network configuration.
- SDT can be triggered.
- the terminal can execute SDT under the control of the network side. Compared with SDT that is not controlled by the network, the failure of SDT is reduced, and the transmission reliability of SDT can be improved.
- this embodiment provides a small data transmission SDT method, wherein the method is executed by a terminal, and the method includes:
- Step 51 Receive the configuration information sent by the access network device; wherein the configuration information is used to indicate a parameter threshold of a triggering condition for triggering SDT and at least one of the following:
- Bearer indication information used to indicate a data radio bearer DRB or a signaling radio bearer SRB.
- the uplink resources of SDT are used to initiate initial access or to send uplink data.
- the configuration information sent by the access network device is received; wherein the configuration information is used to indicate the parameter threshold of the trigger condition for triggering the MO SDT, and the configuration information is also used to indicate at least one of the following: bearer indication information, used to indicate the data radio bearer DRB or the signaling radio bearer SRB; and the uplink resources of the MO SDT, the uplink resources are used to initiate initial access or to send uplink data.
- uplink resources are not limited to the uplink resources of MO SDT, but can also be the uplink resources of MT SDT, which is not limited here.
- the configuration of the uplink resources includes random access resource information, configuration authorization resource information and/or demodulation reference signal (DMRS) information.
- the random access resource information may be information on physical random access channel (PRACH) time-frequency resources and/or PRACH code domain resources (e.g., preamble code number).
- the configuration authorization resource information may be information on physical uplink shared channel (PUSCH) time-frequency resources or PUSCH code domain resources (e.g., Radio Network Temporary Identity (RNTI)).
- PUSCH physical uplink shared channel
- RNTI Radio Network Temporary Identity
- this embodiment provides a small data transmission SDT method, wherein the method is executed by a terminal, and the method includes:
- Step 61 Execute SDT according to a trigger condition determined based on configuration information; wherein the configuration information is used to indicate: a parameter threshold of a trigger condition for triggering SDT.
- the configuration information is determined according to a predetermined communication protocol. According to the configuration information, the SDT is executed; wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering the SDT.
- the configuration information sent by the access network device is received.
- the SDT is executed; wherein the configuration information is used to indicate: a parameter threshold of a triggering condition for triggering the SDT.
- the trigger condition includes at least one of the following:
- the first trigger condition includes: in response to a signal measurement result of the terminal being greater than or equal to the parameter threshold, executing SDT;
- the second trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, performing SDT based on the uplink resources corresponding to MO SDT;
- the third trigger condition includes: in response to the configuration information configuring an uplink resource, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, performing SDT based on the uplink resource;
- a fourth trigger condition includes: in response to a bearer of the terminal being configured to allow use of MT SDT and MO SDT, performing SDT based on an uplink resource corresponding to MO SDT;
- a fifth trigger condition includes: in response to the configuration information, uplink resources are configured, and SDT is performed based on the uplink resources.
- the measurement signal corresponding to the signal measurement result includes one of the following:
- the measurement signal corresponding to the signal measurement result is a synchronization signal block SSB or a channel state information reference signal CSI-RS.
- the first trigger condition includes: executing MT and/or MO SDT in response to a signal measurement result of the terminal being greater than or equal to the parameter threshold.
- the second trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, executing MO SDT based on the uplink resources corresponding to MO SDT.
- the third trigger condition includes: in response to the configuration information, uplink resources are configured, and the signal measurement result of the terminal is greater than or equal to the parameter threshold, and MO SDT is performed based on the uplink resources.
- the fourth trigger condition includes: in response to the bearer of the terminal being configured to allow the use of MT SDT and MO SDT, executing MO SDT based on the uplink resources corresponding to MO SDT.
- the fifth trigger condition includes: configuring uplink resources in response to configuration information, and executing MO SDT based on the uplink resources.
- SDT is performed; wherein the configuration information is used to indicate: a parameter threshold of the triggering condition for triggering SDT.
- a random access process based on a predetermined random access resource is performed; wherein the predetermined condition includes one of the following: a signal measurement result of the terminal is less than or equal to the parameter threshold; the number of data transmissions of the terminal is greater than or equal to the quantity threshold; and a predetermined timer times out.
- the number of transmissions includes one of the following:
- the number of times data is sent for the first time during the SDT process.
- the start condition of the timer includes one of the following:
- the random access preamble is sent for the first time.
- the stop condition of the timer includes one of the following:
- a confirmation message of a random access procedure is received.
- An indication message indicating that data reception is complete is received.
- the parameter threshold value in response to a preset threshold value of the amount of uplink data transmitted using uplink resources, the parameter threshold value is ignored; wherein the preset threshold value is used to determine a trigger condition for performing SDT based on the uplink resources.
- an embodiment of the present disclosure provides a small data transmission SDT device, wherein the device includes:
- a sending module 71 used to send configuration information to a terminal
- the configuration information is used to indicate a parameter threshold of a triggering condition for triggering SDT.
- an embodiment of the present disclosure provides a small data transmission SDT device, wherein the device includes:
- a receiving module 81 configured to execute SDT according to configuration information
- the configuration information is used to indicate a parameter threshold of a triggering condition for triggering SDT.
- the present disclosure provides a communication device, the communication device comprising:
- a memory for storing processor-executable instructions
- the processor is configured to implement the method applied to any embodiment of the present disclosure when running executable instructions.
- the processor may include various types of storage media, which are non-temporary computer storage media that can continue to memorize information stored thereon after the communication device loses power.
- the processor may be connected to the memory via a bus or the like to read the executable program stored in the memory.
- An embodiment of the present disclosure further provides a computer storage medium, wherein the computer storage medium stores a computer executable program, and when the executable program is executed by a processor, the method of any embodiment of the present disclosure is implemented.
- an embodiment of the present disclosure provides a structure of a terminal.
- this embodiment provides a terminal 800 , which may be a mobile phone, a computer, a digital broadcast terminal, a message transceiver, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
- the terminal 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input/output (I/O) interface 812 , a sensor component 814 , and a communication component 816 .
- the processing component 802 generally controls the overall operation of the terminal 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
- the processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method.
- the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components.
- the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.
- the memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phone book data, messages, pictures, videos, etc.
- the memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
- SRAM static random access memory
- EEPROM electrically erasable programmable read-only memory
- EPROM erasable programmable read-only memory
- PROM programmable read-only memory
- ROM read-only memory
- magnetic memory flash memory
- flash memory magnetic disk or optical disk.
- the power component 806 provides power to various components of the terminal 800.
- the power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the terminal 800.
- the multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user.
- the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
- the touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
- the multimedia component 808 includes a front camera and/or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
- the audio component 810 is configured to output and/or input audio signals.
- the audio component 810 includes a microphone (MIC), and when the terminal 800 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal.
- the received audio signal can be further stored in the memory 804 or sent via the communication component 816.
- the audio component 810 also includes a speaker for outputting audio signals.
- I/O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
- the sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the terminal 800.
- the sensor assembly 814 can detect the open/closed state of the device 800, the relative positioning of the components, such as the display and keypad of the terminal 800, and the sensor assembly 814 can also detect the position change of the terminal 800 or a component of the terminal 800, the presence or absence of contact between the user and the terminal 800, the orientation or acceleration/deceleration of the terminal 800 and the temperature change of the terminal 800.
- the sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
- the sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
- the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
- the communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices.
- the terminal 800 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
- the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel.
- the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication.
- the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
- RFID radio frequency identification
- IrDA infrared data association
- UWB ultra-wideband
- Bluetooth Bluetooth
- terminal 800 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above methods.
- ASICs application-specific integrated circuits
- DSPs digital signal processors
- DSPDs digital signal processing devices
- PLDs programmable logic devices
- FPGAs field programmable gate arrays
- controllers microcontrollers, microprocessors or other electronic components to perform the above methods.
- a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by the processor 820 of the terminal 800 to complete the above method.
- the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
- an embodiment of the present disclosure shows a structure of a base station.
- the base station 900 may be provided as a network-side device.
- the base station 900 includes a processing component 922, which further includes one or more processors, and a memory resource represented by a memory 932 for storing instructions executable by the processing component 922, such as an application.
- the application stored in the memory 932 may include one or more modules, each corresponding to a set of instructions.
- the processing component 922 is configured to execute instructions to execute any method of the aforementioned method applied to the base station.
- the base station 900 may also include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to the network, and an input/output (I/O) interface 958.
- the base station 900 may operate based on an operating system stored in the memory 932, such as Windows Server TM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
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Abstract
Description
Claims (34)
- 一种小数据传输SDT方法,其中,所述方法由接入网设备执行,所述方法包括:向终端发送配置信息;其中,所述配置信息用于指示触发SDT的触发条件的参数阈值。
- 根据权利要求1所述的方法,其中,所述向终端发送配置信息,包括以下至少一项:通过终端专用消息向所述终端发送所述配置信息;通过广播消息向所述终端发送所述配置信息。
- 根据权利要求1所述的方法,其中,所述配置信息包括承载指示信息,用于指示数据无线承载DRB或者信令无线承载SRB。
- 根据权利要求3所述的方法,其中,所述配置信息还用于指示是否能够发起SDT的指示信息;所述SDT包括移动主叫小数据传输MO SDT和/或移动被叫小数据传输MT SDT。
- 根据权利要求1所述的方法,其中,所述参数阈值包括以下至少之一:参考信号接收强度RSRP值;参考信号接收质量RSRQ值;以及信号干扰比SINR值。
- 根据权利要求1所述的方法,其中,所述参数阈值包括以下至少之一:第一参数阈值,其中,所述第一参数阈值为用于确定是否触发移动被叫小数据传输MT SDT的阈值;以及第二参数阈值,其中,所述第二参数阈值为用于确定是否触发移动主叫小数据传输MO SDT的阈值。
- 根据权利要求6所述的方法,其中,所述第一参数阈值等于所述第二参数阈值。
- 根据权利要求1所述的方法,其中,所述参数阈值为用于确定通过随机接入过程进行数据传输的阈值;和/或所述参数阈值为用于确定通过配置授权CG资源进行数据传输的阈值。
- 根据权利要求1所述的方法,其中,所述配置信息还用于指示SDT的上行资源,其中,所述上行资源用于发起初始接入,或者,所述上行资源用于发送上行数据。
- 根据权利要求9所述的方法,其中,所述上行资源的配置包括随机接入资源信息、配置授权资源信息和/或解调参考信号DMRS信息。
- 一种小数据传输SDT方法,其中,所述方法由终端执行,所述方法包括:根据配置信息执行SDT;其中,所述配置信息用于指示触发SDT的触发条件的参数阈值。
- 根据权利要求11所述的方法,其中,所述方法还包括:确定所述配置信息,其中,所述确定所述配置信息包括以下至少一项:根据预定通信协议确定所述配置信息;根据接收到的接入网设备发送的信息确定所述配置信息。
- 根据权利要求12所述的方法,其中,所述接收接入网设备发送的所述配置信息,包括以下至少一项:通过终端专用消息接收接入网设备发送的所述配置信息;通过广播消息接收接入网设备发送的所述配置信息。
- 根据权利要求11所述的方法,其中,所述配置信息包括承载指示信息,用于指示数据无线承载DRB或者信令无线承载SRB。
- 根据权利要求14所述的方法,其中,所述配置信息还指示是否能够发起SDT的指示信息;所述SDT包括移动主叫小数据传输MO SDT和/或移动被叫小数据传输MT SDT。
- 根据权利要求11所述的方法,其中,所述参数阈值包括以下至少之一:参考信号接收强度RSRP值;参考信号接收质量RSRQ值;以及信号干扰比SINR值。
- 根据权利要求11所述的方法,其中,所述参数阈值包括以下至少之一:第一参数阈值,为用于确定是否触发移动被叫小数据传输MT SDT的阈值;以及第二参数阈值,为用于确定是否触发移动主叫小数据传输MO SDT的阈值。
- 根据权利要求17所述的方法,其中,所述第一参数阈值等于所述第二参数阈值。
- 根据权利要求11所述的方法,其中,所述参数阈值为用于确定通过随机接入过程进行数据传输的阈值;和/或,所述参数阈值为用于确定通过配置授权CG资源进行数据传输的阈值。
- 根据权利要求11所述的方法,其中,所述配置信息还指示SDT的上行资源;其中,所述上行资源用于发起初始接入;或者,所述上行资源用于发送上行数据。
- 根据权利要求20所述的方法,其中,所述上行资源的配置包括随机接入资源信息、配置授权资源信息和/或解调参考信号DMRS信息。
- 根据权利要求11所述的方法,其中,所述根据配置信息执行SDT,包括:根据基于所述配置信息确定的触发条件,执行SDT。
- 根据权利要求22所述的方法,其中,所述触发条件包括以下至少之一:第一触发条件,包括:响应于终端的信号测量结果大于或者等于所述参数阈值,执行SDT;第二触发条件,包括:响应于终端的承载被配置为允许使用MT SDT和MO SDT,且终端的信号测量结果大于或者等于所述参数阈值,基于MO SDT对应的上行资源执行SDT;第三触发条件,包括:响应于配置信息配置了上行资源,且终端的信号测量结果大于或者等于所述参数阈值,基于所述上行资源执行SDT;第四触发条件,包括:响应于终端的承载被配置为允许使用MT SDT和MO SDT,基于MO SDT对应的上行资源执行SDT;以及第五触发条件,包括:响应于配置信息配置了上行资源,基于所述上行资源执行SDT。
- 根据权利要求23所述的方法,其中,所述方法还包括:响应于预定条件满足,执行基于预定随机接入资源的随机接入过程;其中,所述预定条件包括以下之一:终端的信号测量结果小于或者等于所述参数阈值;终端的数据发送次数大于或者等于数量阈值;以及预定定时器超时。
- 根据权利要求24所述的方法,其中,所述发送次数包括以下之一:在SDT过程中首次发送数据时发送的随机接入前导码的次数;以及在SDT过程中首次发送数据的次数。
- 根据权利要求24所述的方法,其中,所述定时器的启动条件包括以下之一:SDT被触发;首次发送上行数据;以及首次发送随机接入前导码。
- 根据权利要求25所述的方法,其中,所述定时器的停止条件包括以下之一:接收到无线资源控制RRC状态转换指令;接收到随机接入过程的确认消息;以及接收到数据接收完成的指示信息。
- 根据权利要求23所述的方法,其中,所述方法还包括:响应于配置有使用上行资源传输的上行数据的数据量的预设阈值,忽略所述参数阈值;其中,所述预设阈值用于确定基于所述上行资源执行SDT的触发条件。
- 根据权利要求23所述的方法,其中,所述信号测量结果对应的测量信号包括以下之一:路径损耗参考信号;指定测量对象的信号;当前驻留小区的信号;以及发起SDT的小区的信号。
- 根据权利要求23所述的方法,其中,所述信号测量结果对应的测量信号为同步信号块SSB或者信道状态信息参考信号CSI-RS。
- 一种小数据传输SDT装置,其中,所述装置包括:发送模块,用于向终端发送配置信息;其中,所述配置信息用于指示触发SDT的触发条件的参数阈值。
- 一种小数据传输SDT装置,其中,所述装置包括:接收模块,用于根据配置信息执行SDT;其中,所述配置信息用于指示触发SDT的触发条件的参数阈值。
- 一种通信设备,其中,包括:天线;存储器;处理器,分别与所述天线及存储器连接,被配置为通过执行存储在所述存储器上的计算机可执行指令,控制所述天线的收发,并能够实现权利要求1至10或者11至30任一项提供的方法。
- 一种计算机存储介质,所述计算机存储介质存储有计算机可执行指令,所述计算机可执行指令被处理器执行后能够实现权利要求1至10或者11至30任一项提供的方法。
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| CN202280005280.8A CN118414810A (zh) | 2022-11-29 | 2022-11-29 | 小数据传输sdt方法、装置、通信设备及存储介质 |
| EP22966787.8A EP4629573A1 (en) | 2022-11-29 | 2022-11-29 | Small data transmission (sdt) method and apparatus, and communication device and storage medium |
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| WO2022031809A1 (en) * | 2020-08-05 | 2022-02-10 | Idac Holdings, Inc. | Idle/inactive mobility for small data transmission |
| WO2022056788A1 (zh) * | 2020-09-17 | 2022-03-24 | 北京小米移动软件有限公司 | 通信方法及装置、网络设备、ue及存储介质 |
| WO2022067771A1 (zh) * | 2020-09-30 | 2022-04-07 | Oppo广东移动通信有限公司 | 数据传输方法和终端设备 |
| WO2022206678A1 (zh) * | 2021-04-02 | 2022-10-06 | 大唐移动通信设备有限公司 | 数据传输方法、装置及存储介质 |
| WO2022205380A1 (zh) * | 2021-04-01 | 2022-10-06 | 北京小米移动软件有限公司 | 小数据传输sdt退回到非sdt的处理方法及其装置 |
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- 2022-11-29 CN CN202280005280.8A patent/CN118414810A/zh active Pending
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| CN118414810A (zh) | 2024-07-30 |
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