WO2021027821A1 - Sdt processing method, device and system - Google Patents

Sdt processing method, device and system Download PDF

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Publication number
WO2021027821A1
WO2021027821A1 PCT/CN2020/108505 CN2020108505W WO2021027821A1 WO 2021027821 A1 WO2021027821 A1 WO 2021027821A1 CN 2020108505 W CN2020108505 W CN 2020108505W WO 2021027821 A1 WO2021027821 A1 WO 2021027821A1
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Prior art keywords
sdt
transmission
cell
random number
counter
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PCT/CN2020/108505
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French (fr)
Chinese (zh)
Inventor
莫毅韬
吴昱民
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维沃移动通信有限公司
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Publication of WO2021027821A1 publication Critical patent/WO2021027821A1/en

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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
    • 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
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the embodiments of the present disclosure relate to the field of communication technologies, and in particular, to an SDT processing method, device, and system.
  • UE user equipment
  • a random access process such as a four-step random access process (4-step RACH)
  • RRC radio resource control
  • SDT small data transmission (small data transmission).
  • the UE must choose to use transmission resources dedicated to SDT to initiate SDT. Therefore, when configuring transmission resources, the network equipment needs to reserve physical random access channel (PRACH) resources dedicated to SDT for UE initiation SDT. Due to the lack of transmission resources dedicated to SDT, when multiple UEs in a serving cell use PRACH resources dedicated to SDT for SDT, some UEs cannot successfully perform SDT, resulting in poor UE transmission performance .
  • PRACH physical random access channel
  • the embodiments of the present disclosure provide an SDT processing method, device, and system, which can solve the problem of poor transmission performance of the UE when multiple UEs use PRACH resources dedicated to SDT to perform SDT.
  • an SDT processing method is provided, which is applied to a UE.
  • the SDT processing method includes: when the UE triggers a first SDT random access procedure, determining whether to postpone according to the first transmission random number SDT or cancellation of SDT, the first transmission random number is a random number generated by the UE.
  • an SDT processing method is provided, which is applied to a network device.
  • the SDT processing method includes: sending configuration information to the UE, and the configuration information includes at least one of the following: each type of random access process corresponds to SDT transmission factor, the duration of the first timer, the duration of the second timer, the maximum count threshold of the first counter, the maximum count threshold of the second counter, postponement indication information, and information about neighboring cells that support SDT .
  • the first timer is used to indicate the duration of allowing the UE to determine the resumption of the postponed SDT
  • the second timer is used to indicate the duration of allowing the UE to determine the resumption of the cancelled SDT
  • the first counter is used to accumulate the number of times the UE determines to postpone the SDT
  • the second counter It is used to accumulate the number of UE cell reselection evaluations.
  • the postponement indication information is used to indicate that the UE is allowed to determine the maximum length of time to postpone SDT;
  • the information of neighboring cells that support SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, The SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
  • a third aspect of the embodiments of the present disclosure provides a UE, and the UE may include: a determining module.
  • the determining module is used to determine whether to postpone or cancel SDT according to the first transmission random number when the UE triggers the first SDT random access process, and the first transmission random number is a random number generated by the UE.
  • a network device may include a sending module.
  • the sending module is configured to send configuration information to the UE, the configuration information includes at least one of the following: SDT transmission factor corresponding to each type of random access process, the duration of the first timer, the duration of the second timer, and the first The maximum count threshold of a counter, the maximum count threshold of a second counter, postponement indication information, and information about neighboring cells that support SDT.
  • the first timer is used to indicate the duration of allowing the UE to determine the resumption of the postponed SDT
  • the second timer is used to indicate the duration of allowing the UE to determine the resumption of the cancelled SDT
  • the first counter is used to accumulate the number of times the UE determines to postpone the SDT
  • the second counter It is used to accumulate the number of UE cell reselection evaluations.
  • the postponement indication information is used to indicate that the UE is allowed to determine the maximum length of time to postpone SDT;
  • the information of neighboring cells that support SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, The SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
  • a UE in a fifth aspect of the embodiments of the present disclosure, includes a processor, a memory, and a computer program stored on the memory and capable of running on the processor.
  • the computer program implements the above-mentioned first aspect when executed by the processor. The steps in the SDT processing method.
  • a network device in a sixth aspect of the embodiments of the present disclosure, includes a processor, a memory, and a computer program that is stored on the memory and can run on the processor. The steps of the SDT processing method in the second aspect.
  • a seventh aspect of the embodiments of the present disclosure provides a communication system including the UE described in the third aspect and the network device described in the fourth aspect; or, the communication system includes the communication system described in the fifth aspect.
  • An eighth aspect of the embodiments of the present disclosure provides a computer-readable storage medium storing a computer program on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the SDT processing method as described in the first aspect are implemented , Or the steps of the SDT processing method as described in the second aspect.
  • the UE when the UE triggers the first SDT random access procedure, the UE may determine whether to postpone or cancel the SDT according to the generated first transmission random number. Since the UE can determine whether to postpone or cancel SDT according to the first random number generated randomly, that is, multiple UEs in a serving cell can randomly generate a transmission random number, and determine whether to postpone SDT according to the generated transmission random number Or cancel SDT instead of directly choosing to use SDT transmission resources for SDT. Therefore, the number of UEs that use SDT transmission resources for SDT in a serving cell can be reduced, thereby improving UE transmission performance.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the disclosure
  • FIG. 2 is one of the schematic diagrams of an SDT processing method provided by an embodiment of the disclosure
  • FIG. 3 is the second schematic diagram of an SDT processing method provided by an embodiment of the disclosure.
  • FIG. 4 is the third schematic diagram of an SDT processing method provided by an embodiment of the disclosure.
  • FIG. 5 is one of the schematic structural diagrams of a UE provided by an embodiment of the disclosure.
  • FIG. 6 is the second schematic diagram of a UE structure provided by an embodiment of the disclosure.
  • FIG. 7 is the third structural diagram of a UE provided by an embodiment of the disclosure.
  • FIG. 8 is the fourth structural diagram of a UE provided by an embodiment of the disclosure.
  • FIG. 9 is the fifth schematic diagram of a UE structure provided by an embodiment of the disclosure.
  • FIG. 10 is a schematic structural diagram of a network device provided by an embodiment of the disclosure.
  • FIG. 11 is a schematic diagram of hardware of a UE provided by an embodiment of the disclosure.
  • FIG. 12 is a schematic diagram of hardware of a network device provided by an embodiment of the disclosure.
  • first and second in the description and claims of the embodiments of the present disclosure are used to distinguish different objects, rather than to describe a specific order of objects.
  • first timer and the second timer are used to distinguish different timers, rather than to describe the specific sequence of the timers.
  • plural means two or more.
  • a plurality of elements refers to two elements or more than two elements.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • SDT also known as early data transmission (EDT): For UEs in a disconnected state (i.e. idle or inactive), small data transmission (such as water meter Automatic reporting) to avoid causing radio resource control (radio resource control, RRC) status changes and RRC signaling overhead.
  • EDT early data transmission
  • RRC radio resource control
  • LTE long term evolution
  • SDT introduces two solutions for the control plane (CP) and the user plane (UP) of the uplink (UL).
  • RRC signaling is used to piggyback the transmission of small data, avoiding the establishment of data radio bearers (DRB); there is no need to enter the RRC connection state, and all messages are in the signaling radio bearers (signaling radio bearers, SRB 0 is sent with the default configuration, and the radio link control (radio link control, RLC) transparent mode (TM) does not support RRC signaling segmentation.
  • the uplink user data can be directly attached to the uplink RRC early data request (early data request) message in a form similar to a non-access stratum (NAS) message for transmission.
  • NAS non-access stratum
  • Downlink user data can be attached to the downlink RRC early data complete message in a form similar to a NAS message for transmission.
  • the feature of the UP scheme is that when the UE has DRB configuration but is not in the RRC connected state, the UE can perform UL UP SDT.
  • the UE is in a similar inactive state. All DRBs are suspended.
  • the UE needs to restore the RRC connection and re-enter the connected state before it can send and receive data normally, while UL UP SDT It can avoid the RRC state transition, so as to achieve the purpose of small data transmission with less signaling overhead.
  • UP SDT uses DRB transmission and AS security has been activated, UP SDT can perform necessary security protection for data, such as data encryption and integrity protection. From a security perspective, since the UE may have moved to another base station in the suspended state, the security key used by the UE to retransmit the packet needs to be updated at this time. The UE may perform the next key update operation according to the parameters used by the network device to calculate the next hop key provided to the UE when the UE enters the suspended state.
  • UL UP SDT data is carried on a dedicated traffic channel (dedicated traffic channel, DTCH), and is multiplexed with an uplink RRC connection resume request (connection resume request) message for transmission. Similarly, if there is a reply downlink message, it can also be carried on the DTCH and transmitted after multiplexing with the downlink RRC connection release message. Both the upstream data and downstream data are encrypted, and the next updated key can be used for encryption.
  • the transmission mode can be RLC unacknowledged mode (UM) or acknowledged mode (AM), but no segmentation is performed.
  • message 1 sends a preamble sequence (preamble) for timing advance (TA) measurement and request
  • message 2 allocates uplink grant (UL grant) and TA
  • message 3 performs uplink common control channel (CCCH) transmission, generally in this case it is an RRC connection establishment request or an RRC connection recovery request
  • message 4 performs contention resolution.
  • CCCH uplink common control channel
  • SDT's Msg3 requires a larger UL grant to carry user data. Therefore, from the time Msg1 sends the preamble, it is necessary to distinguish between traditional RACH and SDT accompanied RACH requests to the network equipment to facilitate the network
  • the device can allocate sufficient resources for the UE in Msg2 for data transmission.
  • the embodiments of the present disclosure provide an SDT processing method, device, and system.
  • the UE can determine whether to postpone or cancel the SDT according to the generated first transmission random number. Since the UE can determine whether to postpone or cancel SDT according to the first random number generated randomly, that is, multiple UEs in a serving cell can randomly generate a transmission random number, and determine whether to postpone SDT according to the generated transmission random number Or cancel SDT instead of directly choosing to use SDT transmission resources for SDT. Therefore, the number of UEs that use SDT transmission resources for SDT in a serving cell can be reduced, thereby improving UE transmission performance.
  • the SDT processing method, device, and system provided by the embodiments of the present disclosure can be applied to a communication system. Specifically, it can be applied to a process in which the UE determines whether to postpone or cancel SDT based on the generated random number based on the communication system.
  • Fig. 1 shows a schematic structural diagram of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include UE 01 and network equipment 02. Among them, a connection and communication can be established between UE 01 and network device 02.
  • a UE is a device that provides voice and/or data connectivity to users, a handheld device with wired/wireless connection functions, or other processing devices connected to a wireless modem.
  • the UE may communicate with one or more core network devices through a radio access network (RAN).
  • RAN radio access network
  • the UE can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal.
  • PCS personal communication service
  • SIP Session Initiation Protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • the UE may also be referred to as a user agent or terminal device.
  • the network device may be a base station.
  • a base station is a device deployed in the RAN to provide wireless communication functions for the UE.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different.
  • 3G third-generation mobile communication
  • eNB Called evolved NodeB
  • gNB fifth generation mobile communication
  • the name "base station” may change.
  • the SDT processing method may include the following steps 201 and 202.
  • Step 201 When the UE triggers the first SDT random access procedure, the UE generates a first transmission random number.
  • Step 202 The UE determines whether to postpone the SDT or cancel the SDT according to the first transmission random number.
  • the foregoing first transmission random number is a random number generated by the UE.
  • the foregoing first SDT random access process may be an SDT four-step random access process (SDT 4-step RACH) or an SDT two-step random access process (SDT 2-step RACH).
  • the foregoing SDT four-step random access process can be understood as: triggering SDT in the four-step random access process
  • the foregoing SDT two-step random access process can be understood as: triggering in the two-step random access process Perform SDT.
  • the above-mentioned SDT four-step random access process may include CP-SDT 4-step RACH (for example, the third message of the 4-step random access process (ie Msg3 ) Send data) and UP-SDT 4-step RACH (for example, send data in the third message of the 4-step random access process through the data radio bearer);
  • the above-mentioned SDT two-step random access process can include CP-SDT 2- step RACH (e.g., message A (i.e. MsgA) to send data in the 2-step random access process through signaling radio bearer) and UP-SDT 2-step RACH (e.g., through the data radio bearer in the 2-step random access process Message A sends data).
  • the lower layer of the UE may trigger the random access procedure and generate the first One transmits a random number.
  • the media access control (MAC) layer for example, the media access control (MAC) layer
  • the lower layer of the UE may trigger the random access procedure and generate the first One transmits a random number.
  • the UE may generate a random number (for example, the first transmission random number) with equal probability in the interval [0, 1).
  • the UE may determine not to postpone SDT or not to cancel SDT (that is, the UE determines to choose to use SDT transmission resources for SDT) ; In the case where the UE determines that the UE is not allowed (or forbidden) to choose to use the transmission resources of the SDT for SDT according to the first transmission random number, the UE may determine to postpone the SDT or cancel the SDT.
  • transmission resources of SDT can be understood as transmission resources dedicated to SDT. If the UE decides to use the transmission resources of the SDT for SDT, the UE can select transmission resources dedicated to SDT and data transmission (that is, perform SDT on the transmission resources of the selected SDT).
  • the above-mentioned SDT transmission resources may include at least one of the following: PRACH resources dedicated to SDT, and PUSCH configuration resources associated with PRACH resources dedicated to SDT.
  • the above-mentioned first transmission random number may be used to determine whether to allow the UE to select the transmission resource of the SDT for SDT.
  • step 202 may be specifically implemented by the following step 202a or step 202b.
  • step 202b is illustrated by a dashed box.
  • Step 202a If the first transmission random number satisfies the first condition, the UE determines to use SDT transmission resources for SDT.
  • the above-mentioned first condition is: the first transmission random number is less than the first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is allowed to select the transmission resources of the SDT for SDT.
  • the foregoing first condition is: the first transmission random number is greater than or equal to the first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the transmission resource of the SDT for SDT.
  • the UE may compare the first transmission random number with the first SDT transmission factor to determine whether to postpone the SDT or cancel the SDT.
  • the foregoing first SDT transmission factor may be configured by the network device for the UE, and the first SDT transmission factor is an SDT transmission factor corresponding to the type of the first SDT random access process.
  • the UE may perform the SDT on the selected transmission resource of the SDT.
  • Step 202b If the first transmission random number does not meet the first condition, the UE determines to postpone the SDT or cancel the SDT.
  • the UE determines the selection Use SDT transmission resources for SDT; if the first transmission random number is greater than or equal to the first SDT transmission factor (the first SDT transmission factor is used to indicate the probability that the UE is allowed to select the SDT transmission resource for SDT), the UE determines to postpone SDT or cancel SDT.
  • the UE determines to use the SDT transmission resource for SDT; if the first transmission random number is less than the first SDT transmission factor (the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the SDT transmission resource for SDT), then the UE Decide to postpone or cancel SDT.
  • the UE can determine whether the first transmission random number meets the first condition to determine whether to postpone or cancel SDT, that is, multiple UEs in a serving cell can determine whether the transmission random number generated by each meets the first condition.
  • a condition to determine whether to postpone or cancel SDT instead of directly choosing to use SDT transmission resources for SDT, so it can reduce the number of UEs that use SDT transmission resources for SDT in a serving cell, thereby improving UE transmission performance .
  • the embodiment of the present disclosure provides an SDT processing method.
  • the UE can determine whether to postpone or cancel the SDT according to the generated first transmission random number. Since the UE can determine whether to postpone or cancel SDT according to the first random number generated randomly, that is, multiple UEs in a serving cell can randomly generate a transmission random number, and determine whether to postpone SDT according to the generated transmission random number Or cancel SDT instead of directly choosing to use SDT transmission resources for SDT. Therefore, the number of UEs that use SDT transmission resources for SDT in a serving cell can be reduced, thereby improving UE transmission performance.
  • the SDT processing method provided in the embodiment of the present disclosure may further include the following steps 301 and 302.
  • Step 301 The network device sends configuration information to the UE.
  • Step 302 The UE receives configuration information sent by the network device.
  • the above-mentioned configuration information includes at least one of the following: the SDT transmission factor corresponding to each type of random access process, the duration of the first timer, the duration of the second timer, and the maximum count threshold of the first counter Value, the maximum count threshold of the second counter, backoff indicator, and information about neighboring cells that support SDT.
  • the above-mentioned first timer is used to indicate the duration of allowing the UE to determine the resumption of the deferred SDT
  • the second timer is used to indicate the duration of allowing the UE to determine the resumption of the canceled SDT
  • the first counter is used to accumulate the UE’s determination to defer the SDT.
  • the second counter is used to accumulate the number of cell reselection evaluations performed by the UE, and the postponement indication information is used to indicate the maximum duration for allowing the UE to determine the postponement of SDT;
  • the information of neighboring cells that support SDT includes at least one of the following: The identity of the neighboring cell, the SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
  • the above-mentioned SDT configuration parameter information may include at least one of the following: whether the neighboring cell of the serving cell where the UE is located supports CP-SDT information, and whether the neighboring cell of the serving cell where the UE is located supports UP-SDT Information, SDT maximum allowable transmission block size (TBS) of the neighboring cell of the serving cell where the UE is located, and SDT random access resource parameters of the neighboring cell of the serving cell where the UE is located.
  • TBS maximum allowable transmission block size
  • the network device may broadcast a system message (the system message includes configuration information) to multiple UEs in a serving cell.
  • the system message includes configuration information
  • the network device may configure an SDT transmission factor for each type of random access process.
  • the SDT transmission factor configured by the network device for the four-step random access process is 0.5
  • the SDT transmission factor configured for the two-step random access process is 0.3.
  • the identifier of the neighboring cell of the serving cell where the UE is located may include at least one of the following: the frequency of the cell defining-synchronization signal block (cell definition-synchronization signal block, CD-SSB) corresponding to the neighboring cell Point, physical cell identifier (PCI), etc.
  • the frequency of the cell defining-synchronization signal block cell definition-synchronization signal block, CD-SSB
  • PCI physical cell identifier
  • the above-mentioned SDT random access resource parameter may be SDT-random access preamble.
  • the aforementioned random access resource parameters may include PRACH resources available under each coverage enhancement level (CE level).
  • the network device can send configuration information to configure multiple UEs in a serving cell with a determination condition for deferring or canceling SDT, so that multiple UEs in a serving cell can determine according to the configuration information Whether to postpone or cancel SDT instead of directly choosing to use SDT transmission resources for SDT, it can reduce the number of UEs that use SDT transmission resources for SDT in a serving cell, thereby improving UE transmission performance.
  • the SDT processing method provided in the embodiment of the present disclosure may further include the following step 401.
  • Step 401 If it is determined to postpone the SDT, the UE starts a first timer, and/or performs an operation of accumulating 1 on the first counter.
  • the MAC layer may start the first timer, and/or perform an accumulation operation on the first counter.
  • the SDT processing method provided in the embodiment of the present disclosure may further include the following step 501, step 502, and step 503 (or step 504).
  • Step 501 The UE generates a random number of duration.
  • the aforementioned random number of duration is used to indicate the duration of postponing the SDT.
  • the UE can generate a random number (an instant long random number) with equal probability from 0 to the maximum duration (that is, the maximum duration indicated by the postponement indication information that allows the UE to determine the postponement of the SDT), and combine the A random number is used as the length of time to postpone SDT.
  • a random number an instant long random number
  • the maximum duration that is, the maximum duration indicated by the postponement indication information that allows the UE to determine the postponement of the SDT
  • Step 502 After delaying the duration indicated by the SDT duration random number, the UE generates a second transmission random number.
  • the above-mentioned second transmission random number is used to determine whether the UE is allowed to select the transmission resource of the SDT for SDT.
  • the UE may generate a random number (for example, the second transmission random number) with equal probability in the interval [0, 1).
  • Step 503 If the second transmission random number satisfies the first condition, the UE determines to use the transmission resource of the SDT for SDT, stops the first timer, and/or performs a reset operation on the first counter.
  • the UE may compare the second transmission random number with the first SDT transmission factor to determine whether to postpone the SDT or cancel the SDT.
  • Step 504 If the second transmission random number does not meet the first condition, the UE determines to postpone the SDT, and if the second condition is met, determines to cancel the SDT.
  • the foregoing second condition includes at least one of the following: the first timer expires, and the cumulative number of the first counter is greater than or equal to the maximum count threshold of the first counter.
  • the UE determines the selection Use SDT transmission resources to perform SDT and stop the first timer, and/or reset the first counter; if the second transmission random number is greater than or equal to the first SDT transmission factor (the first SDT transmission factor is used In order to indicate the probability that the UE is allowed to choose to use SDT transmission resources for SDT), the UE determines to postpone the SDT (that is, continue to perform the above step 501, step 502, and step 503 (or step 504)). If the second condition is met, it determines to cancel SDT.
  • the UE determines to use SDT transmission resources for SDT, and stops the first timer, and/or resets the first counter; if the second transmission random number is less than the first SDT transmission factor (the first SDT transmission factor It is used to indicate the probability that the UE is not allowed to choose to use the transmission resources of the SDT for SDT), the UE determines to postpone the SDT, and if the second condition is met, determines to cancel the SDT.
  • the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the transmission resources of the SDT for SDT
  • the first counter performs an accumulation operation. If the UE determines that the cumulative number of postponed SDT is greater than or equal to the maximum count threshold of the first counter, the UE Confirm to cancel SDT.
  • the MAC layer may send indication information to the higher layer to indicate that the SDT is cancelled.
  • the UE can generate a random number (ie, the second transmission random number) again after deferring the duration indicated by the SDT duration random number to determine whether to continue to postpone the SDT or cancel the SDT, so as to improve the UE's transmission performance .
  • a random number ie, the second transmission random number
  • the SDT processing method provided in the embodiment of the present disclosure may further include the following step 601.
  • Step 601 If it is determined to cancel the SDT, the UE starts a second timer, and/or performs an operation of accumulating 1 on the second counter.
  • the higher layer of the UE may start the second timer, and/or perform an operation of accumulating the second counter by 1.
  • the SDT processing method provided in the embodiment of the present disclosure may further include the following step 701, step 702, and step 703 (or step 704).
  • Step 701 The UE determines a candidate cell according to the information of neighboring cells that support SDT.
  • the UE may determine the cell indicated by the information of the neighboring cell supporting SDT as a candidate cell, and the candidate cell includes at least one cell.
  • Step 702 The UE performs cell reselection evaluation on cells among the candidate cells.
  • step 702 may be specifically implemented by the following step 702a.
  • Step 702a The UE performs cell reselection evaluation on the cells of the candidate cells in sequence starting from the high priority frequency points according to the frequency point priority.
  • the UE can start from the high-priority frequency according to the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located, and sequentially evaluate whether each frequency point has a cell that meets the reselection condition.
  • Step 703 If at least one first cell among the candidate cells meets the reselection condition, the UE determines the first cell with the highest frequency point priority among the at least one first cell as the target cell, and triggers the first SDT randomly in the target cell. Access process, and stop the second timer, and/or reset the second counter.
  • the aforementioned reselection condition includes at least one of the following: the cell satisfies the reselection criterion and the SDT configuration parameter information satisfies the trigger condition corresponding to the first SDT random access procedure.
  • the aforementioned reselection criterion may include at least one of the following: an S criterion and an R criterion.
  • the above-mentioned reselection criterion may be configured by the network device or predefined (for example, stipulated by a protocol).
  • the SDT configuration parameter information includes information that the neighboring cell of the serving cell where the UE is located supports CP-SDT, the SDT configuration parameter information satisfies the trigger condition corresponding to the first SDT random access procedure.
  • the SDT configuration parameter information includes information that the neighboring cell of the serving cell where the UE is located supports UP-SDT, the SDT configuration parameter information satisfies the trigger condition corresponding to the first SDT random access procedure.
  • the SDT configuration parameter information includes the SDT maximum allowable TBS of the neighboring cell of the serving cell where the UE is located
  • the SDT configuration parameter information meeting the trigger condition corresponding to the first SDT random access procedure can be understood as:
  • the maximum allowable SDT TBS of the neighboring cell of the serving cell where the UE is located is greater than or equal to the SDT transport block size corresponding to the first SDT random access procedure.
  • the SDT configuration parameter information includes a PRACH resource dedicated to SDT or a PUSCH configuration resource associated with a PRACH resource dedicated to SDT
  • the SDT configuration parameter information satisfies the first SDT random access The trigger condition corresponding to the input process.
  • the SDT configuration parameter information includes the PRACH resource dedicated to SDT corresponding to the CE level determined by the UE, the SDT configuration parameter information satisfies the trigger condition corresponding to the first SDT random access procedure.
  • the SDT configuration parameter information includes a PRACH resource dedicated to SDT corresponding to a higher CE level than the CE level determined by the UE, the SDT configuration parameter information satisfies the first SDT random access process correspondence Trigger conditions.
  • the UE may back off to generate an RRC message to instruct the UE to trigger random Access process (that is, regular random access process).
  • the UE may back off to generate an RRC message to instruct the UE to trigger the random access procedure.
  • Step 704 If the third condition is met, the UE rolls back to generate an RRC message to instruct the UE to trigger the random access procedure.
  • the above-mentioned third condition includes at least one of the following: the second timer expires, and the cumulative number of the second counter is greater than or equal to the maximum count threshold of the second counter.
  • the foregoing RRC message may be an RRC connection request (RRC connection request), an RRC setup request (RRC setup request), an RRC connection resume request (RRC connection resume request), and an RRC resume request (RRC resume request). request) or RRC resume request1.
  • the foregoing random access process may be a two-step random access process or a four-step random access process.
  • the second counter each time the UE performs cell reselection evaluation, the second counter performs an accumulating operation of 1, if the cumulative number of times the UE performs cell reselection evaluation is greater than or equal to the maximum count threshold of the second counter Value, the UE falls back to generate an RRC message to instruct the UE to trigger the random access procedure.
  • the UE may perform cell reselection evaluation on the cells in the candidate cells, and according to the result of the cell reselection evaluation, determine whether to trigger the first SDT random access process or fall back to trigger the random access process, thereby improving The transmission performance of the UE.
  • Step 11 The network device sends configuration information related to SDT transmission to the UE through a system message.
  • the foregoing configuration information may include at least one of the following: SDT transmission factor corresponding to a certain RACH type (for example, 2-step RACH, 4-step RACH), the duration of the first timer, and the value of the second timer Duration, maximum count threshold of the first counter, maximum count threshold of the second counter, backoff indicator for SDT, information of neighboring cells that support SDT (that is, the whitelist of cells that support SDT List).
  • RACH type for example, 2-step RACH, 4-step RACH
  • the duration of the first timer for example, 2-step RACH, 4-step RACH
  • the value of the second timer Duration for example, maximum count threshold of the first counter, maximum count threshold of the second counter, backoff indicator for SDT
  • maximum count threshold of the first counter maximum count threshold of the second counter
  • backoff indicator for SDT information of neighboring cells that support SDT (that is, the whitelist of cells that support SDT List).
  • the SDT transmission factor corresponding to the 2-step RACH is configured to be 0.3 in the above system message, and the SDT transmission factor corresponding to the 4-step RACH is 0.5.
  • Step 12 The MAC layer triggers SDT upon receiving the higher layer (such as the RRC layer).
  • the MAC layer When triggering the random access process, the MAC layer generates a random number and compares the random number with the corresponding SDT transmission factor of the corresponding RACH type to determine Whether to postpone or cancel SDT.
  • the UE can generate a random number with equal probability in the interval [0,1).
  • the generated random number is greater than or equal to the SDT transmission factor corresponding to the corresponding RACH type
  • the UE can postpone the SDT And perform step 13 below, or the MAC layer can indicate to the higher layer that SDT is cancelled and perform step 14 below.
  • Step 13 When the UE determines to postpone the SDT transmission, the MAC layer starts/restarts the first timer, and/or performs an operation of adding 1 to the first counter.
  • the UE can generate a random number (an instant long random number) with equal probability within 0 and the maximum duration (that is, the maximum duration indicated by the postponement indication information that allows the UE to determine the postponement of the SDT), and use this random number as the backoff SDT duration. After postponing the duration indicated by the SDT duration random number, the UE can generate a random number again with equal probability in the interval [0,1).
  • the UE can stop the first The timer, and/or, resets the first counter (for example, sets the count of the first counter to 0), and performs SDT resource selection and data transmission according to the protocol rules. If the generated random number is greater than or equal to the SDT transmission factor corresponding to the corresponding RACH type, the UE may continue to perform step 13. If the first timer expires, and/or the accumulated number of the first counter reaches the maximum count threshold of the first counter, the MAC layer may indicate to the higher layer that the SDT is cancelled.
  • Step 14 After the upper layer of the UE receives the indication that the SDT is cancelled, the second timer can be started/restarted, and/or the second counter can be accumulated by 1, and the UE can follow the white information provided in the system message of the cell supporting SDT.
  • List list for example, the cell will broadcast the SDT configuration related information of neighboring cells
  • determine the candidate cell that can be used as the reselection cell and then perform cell reselection evaluation on the candidate cell (for example, the UE based on the order of the provided frequency priority, from High-priority frequency points start to evaluate each frequency point in turn whether there is a suitable reselection cell) to determine whether the reselection conditions are met.
  • the cell with the highest corresponding frequency priority is used as the UE's reselection cell (that is, the target cell in the above embodiment), and cell reselection/selection is performed (that is, the second cell is triggered in the reselection cell).
  • An SDT random access procedure stop the second timer, and/or reset the second counter.
  • RACH regular RACH
  • the UE can fallback to perform regular RACH (for example, RRC signaling messages and UP user data are not multiplexed in one TB, here RACH can be a 2-step RACH or 4-step RACH process.
  • RACH can be a 2-step RACH or 4-step RACH process.
  • the second timer expires, and/or the cumulative number of the second counter reaches the maximum count threshold of the second counter, the UE may fall back to performing regular RACH.
  • Step 15 If the UE performs cell reselection/selection according to the above step 14 (for example, selects a cell with a suitable SDT configuration), the UE will not perform any operations on the second timer and/or the second counter ( For example, the second timer will not be started/restarted, and/or the reset operation of the second counter will not be performed), the higher layer of the UE triggers the MAC layer to perform SDT again, and performs step 11 above.
  • step 11 to step 15 can be referred to the related description in the above embodiment, which will not be repeated here.
  • FIG. 5 shows a schematic diagram of a possible structure of a UE involved in an embodiment of the present disclosure.
  • the UE 50 provided by the embodiment of the present disclosure may include: a determining module 51.
  • the determining module 51 is configured to determine whether to postpone SDT or cancel SDT according to the first transmission random number when the UE triggers the first SDT random access procedure, and the first transmission random number is a random number generated by the UE.
  • the above determining module 51 is specifically configured to determine whether to select the transmission resource of SDT for SDT if the first transmission random number meets the first condition; or, if the first transmission random number does not meet the first condition, A condition is determined to postpone or cancel SDT.
  • the above-mentioned first condition may be: the first transmission random number is less than the first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is allowed to select the transmission resource of the SDT for SDT.
  • the foregoing first condition may be: the first transmission random number is greater than or equal to the first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the transmission resource of the SDT for SDT.
  • the UE provided in the embodiment of the present disclosure may further include: a receiving module 52.
  • the receiving module 52 is configured to receive configuration information sent by the network device before the determining module 51 determines whether to postpone or cancel the SDT according to the first transmission random number, and the configuration information includes at least one of the following: The SDT transmission factor corresponding to the process type, the duration of the first timer, the duration of the second timer, the maximum count threshold of the first counter, the maximum count threshold of the second counter, postponement indication information, and neighbors that support SDT Information about the cell.
  • the first timer is used to indicate the duration of allowing the UE to determine the resumption of the postponed SDT
  • the second timer is used to indicate the duration of allowing the UE to determine the resumption of the cancelled SDT
  • the first counter is used to accumulate the number of times the UE determines to postpone the SDT
  • the second counter It is used to accumulate the number of UE cell reselection evaluations.
  • the postponement indication information is used to indicate that the UE is allowed to determine the maximum length of time to postpone SDT;
  • the information of neighboring cells that support SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, The SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
  • the foregoing SDT configuration parameter information may include at least one of the following: information about whether the neighboring cell of the serving cell where the UE is located supports control plane CP-SDT, and whether the neighboring cell of the serving cell where the UE is located supports user plane UP -SDT information, the maximum allowable SDT transport block size of the neighboring cell of the serving cell where the UE is located, and the SDT random access resource parameters of the neighboring cell of the serving cell where the UE is located.
  • the UE provided in the embodiment of the present disclosure may further include a processing module 53.
  • the processing module 53 is configured to, if the determining module 51 determines to postpone the SDT, start the first timer, and/or perform an operation of accumulating 1 on the first counter.
  • the UE provided in the embodiment of the present disclosure may further include: a generating module 54 and a stopping module 55.
  • the generating module 54 is used to generate a duration random number, the duration random number is used to indicate the duration of postponing SDT; and after the duration indicated by the SDT duration random number is postponed, a second transmission random number is generated, the second transmission random number Used to determine whether to allow the UE to choose to use SDT transmission resources for SDT.
  • the above determining module 51 is further configured to determine that if the second transmission random number generated by the generating module 54 satisfies the first condition, it is determined to select the transmission resource of the SDT for SDT.
  • the stop module 55 is used to stop the first timer and/or to reset the first counter.
  • the above determining module 51 is further configured to determine to postpone the SDT if the second transmission random number generated by the generating module 54 does not meet the first condition, and determine to cancel the SDT if the second condition is met, the second condition includes at least one of the following : The first timer expires, and the cumulative number of the first counter is greater than or equal to the maximum count threshold of the first counter.
  • the UE provided in the embodiment of the present disclosure may further include a processing module 53.
  • the processing module 53 is configured to, if the determining module 51 determines to cancel the SDT, start the second timer, and/or perform an operation of accumulating 1 on the second counter.
  • the above-mentioned determining module 51 is further configured to determine the candidate cell according to the information of the neighboring cell supporting SDT received by the receiving module 52.
  • the UE provided by the embodiment of the present disclosure may further include: an evaluation module 56, a stop module 55, and a fallback module 57.
  • the evaluation module 56 is used to perform cell reselection evaluation on the cell among the candidate cells determined by the determining module 51.
  • the above determining module 51 is further configured to determine the first cell with the highest frequency point priority among the at least one first cell as the target cell if at least one first cell among the candidate cells meets the reselection condition.
  • the above-mentioned processing module 53 is further configured to trigger the first SDT random access procedure in the target cell determined by the determining module 51.
  • the stop module 55 is used to stop the second timer and/or reset the second counter.
  • the fallback module 57 is configured to, if the third condition is met, fallback to generate an RRC message to instruct the UE to trigger a random access procedure.
  • the reselection condition includes at least one of the following: the cell meets the reselection criterion and the SDT configuration parameter information meets the trigger condition corresponding to the first SDT random access procedure; the third condition includes at least one of the following: the second timer expires, the first The cumulative number of the second counter is greater than or equal to the maximum count threshold of the second counter.
  • the above-mentioned evaluation module 56 is specifically configured to perform cell reselection evaluation on the candidate cells in sequence starting from the high-priority frequency point according to the frequency point priority received by the receiving module 52.
  • the UE provided in the embodiments of the present disclosure can implement each process implemented by the UE in the foregoing method embodiments. To avoid repetition, the specific description will not be repeated here.
  • the embodiments of the present disclosure provide a UE. Since the UE can determine whether to postpone or cancel SDT according to the first random number generated randomly, that is, multiple UEs in a serving cell can randomly generate a random number for transmission, and according to The generated transmission random number determines whether to postpone or cancel SDT, instead of directly choosing to use SDT transmission resources for SDT, so it can reduce the number of UEs that use SDT transmission resources for SDT in a serving cell, thereby improving UE transmission performance.
  • FIG. 10 shows a schematic diagram of a possible structure of a network device involved in an embodiment of the present disclosure.
  • the network device 60 provided by the embodiment of the present disclosure may include: a sending module 61.
  • the sending module 61 is configured to send configuration information to the UE.
  • the configuration information includes at least one of the following: the SDT transmission factor corresponding to each type of random access process, the duration of the first timer, the duration of the second timer, The maximum count threshold of the first counter, the maximum count threshold of the second counter, postponement indication information, and information about neighboring cells that support SDT.
  • the first timer is used to indicate the duration of allowing the UE to determine the resumption of the postponed SDT
  • the second timer is used to indicate the duration of allowing the UE to determine the resumption of the cancelled SDT
  • the first counter is used to accumulate the number of times the UE determines to postpone the SDT
  • the second counter It is used to accumulate the number of UE cell reselection evaluations.
  • the postponement indication information is used to indicate that the UE is allowed to determine the maximum length of time to postpone SDT;
  • the information of neighboring cells that support SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, The SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
  • the above-mentioned SDT configuration parameter information may include at least one of the following: information about whether the neighboring cell of the serving cell where the UE is located supports CP-SDT, and whether the neighboring cell of the serving cell where the UE is located supports UP-SDT. , The SDT maximum allowable transport block size and random access resource parameters of the neighboring cell of the serving cell where the UE is located.
  • the network device provided in the embodiments of the present disclosure can implement the various processes implemented by the network device in the foregoing method embodiments. To avoid repetition, the specific description will not be repeated here.
  • the embodiments of the present disclosure provide a network device, which can send configuration information to configure multiple UEs in a serving cell whether to defer SDT or cancel SDT judgment conditions, so that multiple UEs in a serving cell can all be based on
  • the configuration information determines whether to postpone SDT or cancel SDT, instead of directly choosing to use SDT transmission resources for SDT. Therefore, the number of UEs that use SDT transmission resources for SDT in a serving cell can be reduced, thereby improving UE transmission performance.
  • FIG. 11 shows a hardware schematic diagram of a UE provided by an embodiment of the present disclosure.
  • the UE 110 includes but is not limited to: a radio frequency unit 111, a network module 112, an audio output unit 113, an input unit 114, a sensor 115, a display unit 116, a user input unit 117, an interface unit 118, a memory 119, The processor 120, and the power supply 121 and other components.
  • the structure of the UE shown in FIG. 11 does not constitute a limitation on the UE, and the UE may include more or less components than those shown in FIG. 11, or combine certain components. Or different component arrangements.
  • the UE includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, and a pedometer.
  • the processor 120 is configured to determine whether to postpone SDT or cancel SDT according to the first transmission random number when the UE triggers the first SDT random access process, and the first transmission random number is a random number generated by the UE.
  • the embodiments of the present disclosure provide a UE. Since the UE can determine whether to postpone or cancel SDT according to the first random number generated randomly, that is, multiple UEs in a serving cell can randomly generate a random number for transmission, and according to The generated transmission random number determines whether to postpone or cancel SDT, instead of directly choosing to use SDT transmission resources for SDT, so it can reduce the number of UEs that use SDT transmission resources for SDT in a serving cell, thereby improving UE transmission performance.
  • the radio frequency unit 111 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 120; in addition, Uplink data is sent to the base station.
  • the radio frequency unit 111 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 111 can also communicate with the network and other devices through a wireless communication system.
  • the UE provides users with wireless broadband Internet access through the network module 112, such as helping users to send and receive e-mails, browse web pages, and access streaming media.
  • the audio output unit 113 may convert the audio data received by the radio frequency unit 111 or the network module 112 or stored in the memory 119 into audio signals and output them as sounds. Moreover, the audio output unit 113 may also provide audio output related to a specific function performed by the UE 110 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 113 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 114 is used to receive audio or video signals.
  • the input unit 114 may include a graphics processing unit (GPU) 1141 and a microphone 1142.
  • the graphics processing unit 1141 is used to capture still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frame can be displayed on the display unit 116.
  • the image frame processed by the graphics processor 1141 may be stored in the memory 119 (or other storage medium) or sent via the radio frequency unit 111 or the network module 112.
  • the microphone 1142 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to the mobile communication base station via the radio frequency unit 111 for output in the case of a telephone call mode.
  • the UE 110 also includes at least one sensor 115, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 1161 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 1161 and/or when the UE 110 moves to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify UE posture (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 115 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared Sensors, etc., will not be repeated here.
  • the display unit 116 is used to display information input by the user or information provided to the user.
  • the display unit 116 may include a display panel 1161, and the display panel 1161 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 117 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the UE.
  • the user input unit 117 includes a touch panel 1171 and other input devices 1172.
  • the touch panel 1171 also known as a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 1171 or near the touch panel 1171. operating).
  • the touch panel 1171 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 120, the command sent by the processor 120 is received and executed.
  • the touch panel 1171 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 117 may also include other input devices 1172.
  • other input devices 1172 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 1171 can be overlaid on the display panel 1161.
  • the touch panel 1171 detects a touch operation on or near it, it transmits it to the processor 120 to determine the type of the touch event.
  • the type of event provides corresponding visual output on the display panel 1161.
  • the touch panel 1171 and the display panel 1161 are used as two independent components to implement the input and output functions of the UE, but in some embodiments, the touch panel 1171 and the display panel 1161 can be integrated. Realize the input and output functions of the UE, which are not specifically limited here.
  • the interface unit 118 is an interface for connecting an external device to the UE 110.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 118 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the UE 110 or can be used to communicate between the UE 110 and the external device. Transfer data between.
  • the memory 119 can be used to store software programs and various data.
  • the memory 119 may mainly include a storage program area and a storage data area.
  • the storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 119 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 120 is the control center of the UE. It uses various interfaces and lines to connect various parts of the entire UE. It executes by running or executing software programs and/or modules stored in the memory 119, and calling data stored in the memory 119. Various functions of the UE and processing data, so as to monitor the UE as a whole.
  • the processor 120 may include one or more processing units; optionally, the processor 120 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, application programs, etc., and the modem
  • the adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 120.
  • the UE 110 may also include a power supply 121 (such as a battery) for supplying power to various components.
  • a power supply 121 (such as a battery) for supplying power to various components.
  • the power supply 121 may be logically connected to the processor 120 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.
  • the UE 110 includes some functional modules not shown, which will not be repeated here.
  • an embodiment of the present disclosure further provides a UE, including a processor 120 as shown in FIG. 11, a memory 119, a computer program stored on the memory 119 and running on the processor 120, the computer program When executed by the processor 120, each process of the foregoing method embodiment is realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor 120 as shown in FIG. 11, each process of the foregoing method embodiment is implemented, And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
  • the computer-readable storage medium such as read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc.
  • Fig. 12 shows a hardware schematic diagram of a network device provided by an embodiment of the present disclosure.
  • the network device 130 includes a processor 131, a transceiver 132, a memory 133, a user interface 134, and a bus interface 135.
  • the transceiver 132 is configured to send configuration information to the UE.
  • the configuration information includes at least one of the following: the SDT transmission factor corresponding to each type of random access process, the duration of the first timer, the duration of the second timer, the first The maximum count threshold of the counter, the maximum count threshold of the second counter, postponement indication information, and information about neighboring cells that support SDT.
  • the first timer is used to indicate the duration of allowing the UE to determine the resumption of the postponed SDT
  • the second timer is used to indicate the duration of allowing the UE to determine the resumption of the cancelled SDT
  • the first counter is used to accumulate the number of times the UE determines to postpone the SDT
  • the second counter It is used to accumulate the number of UE cell reselection evaluations.
  • the postponement indication information is used to indicate that the UE is allowed to determine the maximum length of time to postpone SDT;
  • the information of neighboring cells that support SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, The SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
  • the embodiments of the present disclosure provide a network device, which can send configuration information to configure multiple UEs in a serving cell whether to defer SDT or cancel SDT judgment conditions, so that multiple UEs in a serving cell can all be based on
  • the configuration information determines whether to postpone SDT or cancel SDT, instead of directly choosing to use SDT transmission resources for SDT. Therefore, the number of UEs that use SDT transmission resources for SDT in a serving cell can be reduced, thereby improving UE transmission performance.
  • the processor 131 may be responsible for managing the bus architecture and general processing, and the processor 131 may be used to read and execute programs in the memory 133 to implement processing functions and control the network device 130.
  • the memory 133 may store data used by the processor 131 when performing operations.
  • the processor 131 and the memory 133 may be integrated, or may be independently arranged.
  • the network device 130 may further include: a computer program stored on the memory 133 and running on the processor 131, and when the computer program is executed by the processor 131, the steps of the method provided in the embodiment of the present disclosure are implemented.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 131 and various circuits of the memory represented by the memory 133 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits. These are all well-known in the art. Therefore, the embodiments of the present disclosure will not further describe them.
  • the bus interface 135 provides an interface.
  • the transceiver 132 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the user interface 134 may also be an interface capable of connecting externally and internally with required equipment.
  • the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, and a joystick.
  • the embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor 131 as shown in FIG. 12, each process of the foregoing method embodiment is implemented, And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
  • the computer-readable storage medium such as ROM, RAM, magnetic disk or optical disk, etc.
  • the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk). ) Includes several instructions to make a terminal device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present disclosure.
  • a terminal device which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

Disclosed in the embodiments of the present disclosure are an SDT processing method, a device and a system. Said method comprises: in cases where UE triggers a first SDT random access process, determining, according to a first transmission random number, whether to defer an SDT or cancel the SDT, the first transmission random number being a random number generated by the UE. The embodiments of the present disclosure are applied in the process of the UE determining, according to the generated random number, whether to defer the SDT or cancel the SDT.

Description

SDT处理方法、设备及***SDT processing method, equipment and system
本申请要求于2019年08月13日提交国家知识产权局、申请号为201910745657.3、申请名称为“一种SDT处理方法、设备及***”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office on August 13, 2019, the application number is 201910745657.3, and the application name is "a SDT processing method, equipment and system", the entire content of which is incorporated by reference In this application.
技术领域Technical field
本公开实施例涉及通信技术领域，尤其涉及一种SDT处理方法、设备及***。The embodiments of the present disclosure relate to the field of communication technologies, and in particular, to an SDT processing method, device, and system.
背景技术Background technique
在通信***中，用户设备(user equipment，UE)可以在随机接入过程(例如四步随机接入过程(4-step RACH))中进行数据传输，即处于非连接态(即空闲态或非激活态)的UE可以在不进行无线资源控制(radio resource control，RRC)状态切换的情况下便可完成数据传输，这种在随机接入过程中的数据传输即为小数据传输(small data transmission，SDT)。In a communication system, user equipment (UE) can perform data transmission in a random access process (such as a four-step random access process (4-step RACH)), that is, in a non-connected state (that is, an idle state or a non-connected state). Active UEs can complete data transmission without performing radio resource control (RRC) state switching. This kind of data transmission in the random access process is called small data transmission (small data transmission). , SDT).
UE必须选择使用专用于SDT的传输资源才能发起SDT，因此网络设备在配置传输资源时，需要预留专用于SDT的物理随机接入信道(physical random access channel，PRACH)资源，以用于UE发起SDT。由于专用于SDT的传输资源的匮乏，当一个服务小区中的有多个UE都使用专用于SDT的PRACH资源进行SDT时，则会导致部分UE无法成功进行SDT，从而导致UE的传输性能较差。The UE must choose to use transmission resources dedicated to SDT to initiate SDT. Therefore, when configuring transmission resources, the network equipment needs to reserve physical random access channel (PRACH) resources dedicated to SDT for UE initiation SDT. Due to the lack of transmission resources dedicated to SDT, when multiple UEs in a serving cell use PRACH resources dedicated to SDT for SDT, some UEs cannot successfully perform SDT, resulting in poor UE transmission performance .
发明内容Summary of the invention
本公开实施例提供一种SDT处理方法、设备及***，可以解决多个UE都使用专用于SDT的PRACH资源进行SDT时，UE的传输性能较差的问题。The embodiments of the present disclosure provide an SDT processing method, device, and system, which can solve the problem of poor transmission performance of the UE when multiple UEs use PRACH resources dedicated to SDT to perform SDT.
为了解决上述技术问题，本公开实施例采用如下技术方案：In order to solve the above technical problems, the embodiments of the present disclosure adopt the following technical solutions:
本公开实施例的第一方面，提供一种SDT处理方法，应用于UE，该SDT处理方法包括：在UE触发第一SDT随机接入过程的情况下，根据第一传输随机数，确定是否推迟SDT或取消SDT，该第一传输随机数为UE生成的随机数。In the first aspect of the embodiments of the present disclosure, an SDT processing method is provided, which is applied to a UE. The SDT processing method includes: when the UE triggers a first SDT random access procedure, determining whether to postpone according to the first transmission random number SDT or cancellation of SDT, the first transmission random number is a random number generated by the UE.
本公开实施例的第二方面，提供一种SDT处理方法，应用于网络设备，该SDT处理方法包括：向UE发送配置信息，该配置信息包括以下至少一项：每种随机接入过程类型对应的SDT传输因子、第一定时器的时长、第二定时器的时长、第一计数器的最大计数门限值、第二计数器的最大计数门限值、推迟指示信息、支持SDT的邻小区的信息。其中，第一定时器用于指示允许UE确定恢复推迟的SDT的时长，第二定时器用于指示允许UE确定恢复取消的SDT的时长，第一计数器用于累计UE确定推迟SDT的次数，第二计数器用于累计UE进行小区重选评估的次数，推迟指示信息用于指示允许UE确定推迟SDT的最大时长；支持SDT的邻小区的信息包括以下至少一项：UE所在服务小区的邻小区的标识、UE所在服务小区的邻小区的SDT配置参数信息、UE所在服务小区的邻小区对应的频点优先级。In a second aspect of the embodiments of the present disclosure, an SDT processing method is provided, which is applied to a network device. The SDT processing method includes: sending configuration information to the UE, and the configuration information includes at least one of the following: each type of random access process corresponds to SDT transmission factor, the duration of the first timer, the duration of the second timer, the maximum count threshold of the first counter, the maximum count threshold of the second counter, postponement indication information, and information about neighboring cells that support SDT . Among them, the first timer is used to indicate the duration of allowing the UE to determine the resumption of the postponed SDT, the second timer is used to indicate the duration of allowing the UE to determine the resumption of the cancelled SDT, the first counter is used to accumulate the number of times the UE determines to postpone the SDT, and the second counter It is used to accumulate the number of UE cell reselection evaluations. The postponement indication information is used to indicate that the UE is allowed to determine the maximum length of time to postpone SDT; the information of neighboring cells that support SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, The SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
本公开实施例的第三方面，提供一种UE，该UE可以包括：确定模块。其中，确定模块，用于在UE触发第一SDT随机接入过程的情况下，根据第一传输随机数，确定是否推迟SDT或取消SDT，该第一传输随机数为UE生成的随机数。A third aspect of the embodiments of the present disclosure provides a UE, and the UE may include: a determining module. Wherein, the determining module is used to determine whether to postpone or cancel SDT according to the first transmission random number when the UE triggers the first SDT random access process, and the first transmission random number is a random number generated by the UE.
本公开实施例的第四方面，提供一种网络设备，该网络设备可以包括：发送模块。其中，发送模块，用于向UE发送配置信息，该配置信息包括以下至少一项：每种随机接入过程类型对应的SDT传输因子、第一定时器的时长、第二定时器的时长、第一计数器的最大计数门限值、第二计数器的最大计数门限值、推迟指示信息、支持SDT的邻小区的信息。其中，第一定时器用于指示允许UE确定恢复推迟的SDT的时长，第二定时器用于指示允许UE确定恢复取消的SDT的时长，第一计数器用于累计UE确定推迟SDT的次数，第二计数器用于累计UE进行小区重选评估的次数，推迟指示信息用于指示允许UE确定推迟SDT的最大时长；支持SDT的邻小区的信息包括以下至少一项：UE所在服务小区的邻小区的标识、UE所在服务小区的邻小区的SDT配置参数信息、UE所在服务小区的邻小区对应的频点优先级。In a fourth aspect of the embodiments of the present disclosure, a network device is provided. The network device may include a sending module. Wherein, the sending module is configured to send configuration information to the UE, the configuration information includes at least one of the following: SDT transmission factor corresponding to each type of random access process, the duration of the first timer, the duration of the second timer, and the first The maximum count threshold of a counter, the maximum count threshold of a second counter, postponement indication information, and information about neighboring cells that support SDT. Among them, the first timer is used to indicate the duration of allowing the UE to determine the resumption of the postponed SDT, the second timer is used to indicate the duration of allowing the UE to determine the resumption of the cancelled SDT, the first counter is used to accumulate the number of times the UE determines to postpone the SDT, and the second counter It is used to accumulate the number of UE cell reselection evaluations. The postponement indication information is used to indicate that the UE is allowed to determine the maximum length of time to postpone SDT; the information of neighboring cells that support SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, The SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
本公开实施例的第五方面，提供一种UE，该UE包括处理器、存储器及存储在存储器上并可在处理器上运行的计算机程序，该计算机程序被处理器执行时实现上述第一方面中的SDT处理方法的步骤。In a fifth aspect of the embodiments of the present disclosure, a UE is provided. The UE includes a processor, a memory, and a computer program stored on the memory and capable of running on the processor. The computer program implements the above-mentioned first aspect when executed by the processor. The steps in the SDT processing method.
本公开实施例的第六方面，提供一种网络设备，该网络设备包括处理器、存储器及存储在存储器上并可在处理器上运行的计算机程序，该计算机程序被处理器执行时实现上述第二方面中的SDT处理方法的步骤。In a sixth aspect of the embodiments of the present disclosure, a network device is provided. The network device includes a processor, a memory, and a computer program that is stored on the memory and can run on the processor. The steps of the SDT processing method in the second aspect.
本公开实施例的第七方面，提供一种通信***，该通信***包括如第三方面所述的UE，以及如第四方面所述的网络设备；或者，该通信***包括如第五方面所述的UE，以及如第六方面所述的网络设备。A seventh aspect of the embodiments of the present disclosure provides a communication system including the UE described in the third aspect and the network device described in the fourth aspect; or, the communication system includes the communication system described in the fifth aspect. The UE described above, and the network equipment described in the sixth aspect.
本公开实施例的第八方面，提供一种计算机可读存储介质，该计算机可读存储介质上存储计算机程序，该计算机程序被处理器执行时实现如第一方面所述的SDT处理方法的步骤，或者如第二方面所述的SDT处理方法的步骤。An eighth aspect of the embodiments of the present disclosure provides a computer-readable storage medium storing a computer program on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the SDT processing method as described in the first aspect are implemented , Or the steps of the SDT processing method as described in the second aspect.
在本公开实施例中，在UE触发第一SDT随机接入过程的情况下，UE可以根据生成的第一传输随机数，确定是否推迟SDT或取消SDT。由于UE可以根据随机生成的第一传输随机数，确定是否推迟SDT或取消SDT，即一个服务小区中的多个UE都可以随机生成一个传输随机数，并根据生成的传输随机数确定是否推迟SDT或取消SDT，而并非直接选择使用SDT的传输资源进行SDT，因此可以减少一个服务小区中使用SDT的传输资源进行SDT的UE的数量，从而可以提高UE的传输性能。In the embodiment of the present disclosure, when the UE triggers the first SDT random access procedure, the UE may determine whether to postpone or cancel the SDT according to the generated first transmission random number. Since the UE can determine whether to postpone or cancel SDT according to the first random number generated randomly, that is, multiple UEs in a serving cell can randomly generate a transmission random number, and determine whether to postpone SDT according to the generated transmission random number Or cancel SDT instead of directly choosing to use SDT transmission resources for SDT. Therefore, the number of UEs that use SDT transmission resources for SDT in a serving cell can be reduced, thereby improving UE transmission performance.
附图说明Description of the drawings
图1为本公开实施例提供的一种通信***的架构示意图；FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the disclosure;
图2为本公开实施例提供的一种SDT处理方法的示意图之一；FIG. 2 is one of the schematic diagrams of an SDT processing method provided by an embodiment of the disclosure;
图3为本公开实施例提供的一种SDT处理方法的示意图之二；3 is the second schematic diagram of an SDT processing method provided by an embodiment of the disclosure;
图4为本公开实施例提供的一种SDT处理方法的示意图之三；FIG. 4 is the third schematic diagram of an SDT processing method provided by an embodiment of the disclosure;
图5为本公开实施例提供的一种UE的结构示意图之一；FIG. 5 is one of the schematic structural diagrams of a UE provided by an embodiment of the disclosure;
图6为本公开实施例提供的一种UE的结构示意图之二；FIG. 6 is the second schematic diagram of a UE structure provided by an embodiment of the disclosure;
图7为本公开实施例提供的一种UE的结构示意图之三；FIG. 7 is the third structural diagram of a UE provided by an embodiment of the disclosure;
图8为本公开实施例提供的一种UE的结构示意图之四；FIG. 8 is the fourth structural diagram of a UE provided by an embodiment of the disclosure;
图9为本公开实施例提供的一种UE的结构示意图之五；FIG. 9 is the fifth schematic diagram of a UE structure provided by an embodiment of the disclosure;
图10为本公开实施例提供的一种网络设备的结构示意图；10 is a schematic structural diagram of a network device provided by an embodiment of the disclosure;
图11为本公开实施例提供的一种UE的硬件示意图；FIG. 11 is a schematic diagram of hardware of a UE provided by an embodiment of the disclosure;
图12为本公开实施例提供的一种网络设备的硬件示意图。FIG. 12 is a schematic diagram of hardware of a network device provided by an embodiment of the disclosure.
具体实施方式detailed description
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.
本公开实施例的说明书和权利要求书中的术语“第一”和“第二”等是用于区别不同的对象，而不是用于描述对象的特定顺序。例如，第一定时器和第二定时器等是用于区别不同的定时器，而不是用于描述定时器的特定顺序。The terms "first" and "second" in the description and claims of the embodiments of the present disclosure are used to distinguish different objects, rather than to describe a specific order of objects. For example, the first timer and the second timer are used to distinguish different timers, rather than to describe the specific sequence of the timers.
在本公开实施例的描述中，除非另有说明，“多个”的含义是指两个或两个以上。例如，多个元件是指两个元件或两个以上元件。In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "plurality" means two or more. For example, a plurality of elements refers to two elements or more than two elements.
本文中术语“和/或”，是一种描述关联对象的关联关系，表示可以存在三种关系，例如，显示面板和/或背光，可以表示：单独存在显示面板，同时存在显示面板和背光，单独存在背光这三种情况。本文中符号“/”表示关联对象是或者的关系，例如输入/输出表示输入或者输出。The term "and/or" in this article refers to an association relationship that describes associated objects, which means that there can be three relationships, for example, a display panel and/or backlight, which can mean that there is a display panel alone, and a display panel and a backlight exist at the same time. There are three cases of backlight alone. The symbol "/" in this document indicates the relationship that the associated object is or, for example, input/output indicates input or output.
在本公开实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used as examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present disclosure should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.
下面对本公开实施例提供的SDT处理方法、设备及***中涉及的一些概念和/或术语做一下解释说明。The following explains some concepts and/or terms involved in the SDT processing method, equipment, and system provided by the embodiments of the present disclosure.
SDT(又称为早期数据传输(early data transmission，EDT))：对于处于非连接态(即空闲态或非激活态)的UE，可以通过简单的信令过程进行小数据的传输(例如水表的自动上报)，以避免造成无线资源控制(radio resource control，RRC)状态的改变和RRC信令的开销。在长期演进(long term evolution，LTE)中，SDT引入了针对上行链路(up link，UL)的控制面(control plane，CP)和用户面(user plane，UP)两种方案。SDT (also known as early data transmission (EDT)): For UEs in a disconnected state (i.e. idle or inactive), small data transmission (such as water meter Automatic reporting) to avoid causing radio resource control (radio resource control, RRC) status changes and RRC signaling overhead. In the long term evolution (LTE), SDT introduces two solutions for the control plane (CP) and the user plane (UP) of the uplink (UL).
CP方案的特点是：以RRC信令来捎带小数据的传输，避免建立数据无线承载(data radio bearer，DRB)；不需要进入RRC连接状态，所有消息均在信令无线承载(signaling radio bearers，SRB)0上以默认配置进行发送，无线链路控制(radio link control，RLC)透明模式(TM)不支持RRC信令分段。其中，上行用户数据可以直接以类似非接入层(non-access stratum，NAS)消息的形式附着在上行RRC早期数据请求(early data request)消息中进行传输。下行用户数据可以以类似NAS消息的形式附着在下行RRC早期数据完成(early data complete)消息中进行传输。The characteristics of the CP solution are: RRC signaling is used to piggyback the transmission of small data, avoiding the establishment of data radio bearers (DRB); there is no need to enter the RRC connection state, and all messages are in the signaling radio bearers (signaling radio bearers, SRB 0 is sent with the default configuration, and the radio link control (radio link control, RLC) transparent mode (TM) does not support RRC signaling segmentation. Among them, the uplink user data can be directly attached to the uplink RRC early data request (early data request) message in a form similar to a non-access stratum (NAS) message for transmission. Downlink user data can be attached to the downlink RRC early data complete message in a form similar to a NAS message for transmission.
UP方案的特点是：当UE有DRB的配置但并不处于RRC连接态的情况下，UE可以进行UL UP SDT。UE处于类似非激活(inactive)态，所有的DRB都是挂起的，按照正常传输数据的流程，UE需要先恢复RRC连接，重新进入连接态，然后才能够正常的收发数据，而UL UP SDT可以避免进行RRC状态的转换，从而以较小的信令 开销达到小数据传输的目的。The feature of the UP scheme is that when the UE has DRB configuration but is not in the RRC connected state, the UE can perform UL UP SDT. The UE is in a similar inactive state. All DRBs are suspended. According to the normal data transmission process, the UE needs to restore the RRC connection and re-enter the connected state before it can send and receive data normally, while UL UP SDT It can avoid the RRC state transition, so as to achieve the purpose of small data transmission with less signaling overhead.
UP SDT由于使用的是DRB传输，AS安全已经激活，因此UP SDT可以对数据进行必要的安全保护，例如数据加密和完整性保护等操作。从安全角度，由于UE在挂起状态有可能已经移动到其它的基站下，因此此时UE重新发包所使用的安全密钥是需要更新的。UE可以按照UE在进入挂起状态时，网络设备提供给UE的用于计算下一跳密钥的参数，进行下一个密钥的更新操作。Because UP SDT uses DRB transmission and AS security has been activated, UP SDT can perform necessary security protection for data, such as data encryption and integrity protection. From a security perspective, since the UE may have moved to another base station in the suspended state, the security key used by the UE to retransmit the packet needs to be updated at this time. The UE may perform the next key update operation according to the parameters used by the network device to calculate the next hop key provided to the UE when the UE enters the suspended state.
UL UP SDT的数据在专有业务信道(dedicated traffic channel，DTCH)上承载，与上行RRC连接恢复请求(connection resume request)消息进行复用之后进行传输。类似的，如果有回复的下行消息，也可以在DTCH上承载，与下行RRC连接释放(connection release)消息复用之后进行传输。上行数据和下行数据均是加密的，可以使用更新后的下一个密钥进行加密操作。传输模式可以是RLC非确认模式(UM)或者确认模式(AM)，但是不进行分段。UL UP SDT data is carried on a dedicated traffic channel (dedicated traffic channel, DTCH), and is multiplexed with an uplink RRC connection resume request (connection resume request) message for transmission. Similarly, if there is a reply downlink message, it can also be carried on the DTCH and transmitted after multiplexing with the downlink RRC connection release message. Both the upstream data and downstream data are encrypted, and the next updated key can be used for encryption. The transmission mode can be RLC unacknowledged mode (UM) or acknowledged mode (AM), but no segmentation is performed.
SDT过程在媒体介入控制层(media access control，MAC)层的体现，主要是影响了随机接入过程。按照原有的随机接入过程，消息1(Msg1)发送前导序列(preamble)，用于进行定时提前(timing advance，TA)测量和请求，消息2(Msg2)分配上行授权(UL grant)和TA，消息3(Msg3)进行上行公共控制信道(common control channel，CCCH)的传输，一般在这种情况下是RRC连接建立请求或者RRC连接恢复请求，消息4(Msg4)进行竞争解决。而在SDT中，由于需要进行非伴随状态转换的数据传输，因此在Msg3里就直接发送用户数据了。相比于传统的Msg3，SDT的Msg3需要更大的UL grant，才能足够承载用户数据，因此从Msg1发送preamble起，就需要向网络设备进行传统RACH和SDT伴随的RACH请求进行区分，以便于网络设备能够在Msg2为UE分配足够的资源用于数据传输。The manifestation of the SDT process at the media access control (MAC) layer mainly affects the random access process. According to the original random access procedure, message 1 (Msg1) sends a preamble sequence (preamble) for timing advance (TA) measurement and request, and message 2 (Msg2) allocates uplink grant (UL grant) and TA , Message 3 (Msg3) performs uplink common control channel (CCCH) transmission, generally in this case it is an RRC connection establishment request or an RRC connection recovery request, and message 4 (Msg4) performs contention resolution. In SDT, because of the need for data transmission without state transition, the user data is sent directly in Msg3. Compared with traditional Msg3, SDT's Msg3 requires a larger UL grant to carry user data. Therefore, from the time Msg1 sends the preamble, it is necessary to distinguish between traditional RACH and SDT accompanied RACH requests to the network equipment to facilitate the network The device can allocate sufficient resources for the UE in Msg2 for data transmission.
本公开实施例提供一种SDT处理方法、设备及***，在UE触发第一SDT随机接入过程的情况下，UE可以根据生成的第一传输随机数，确定是否推迟SDT或取消SDT。由于UE可以根据随机生成的第一传输随机数，确定是否推迟SDT或取消SDT，即一个服务小区中的多个UE都可以随机生成一个传输随机数，并根据生成的传输随机数确定是否推迟SDT或取消SDT，而并非直接选择使用SDT的传输资源进行SDT，因此可以减少一个服务小区中使用SDT的传输资源进行SDT的UE的数量，从而可以提高UE的传输性能。The embodiments of the present disclosure provide an SDT processing method, device, and system. When the UE triggers the first SDT random access procedure, the UE can determine whether to postpone or cancel the SDT according to the generated first transmission random number. Since the UE can determine whether to postpone or cancel SDT according to the first random number generated randomly, that is, multiple UEs in a serving cell can randomly generate a transmission random number, and determine whether to postpone SDT according to the generated transmission random number Or cancel SDT instead of directly choosing to use SDT transmission resources for SDT. Therefore, the number of UEs that use SDT transmission resources for SDT in a serving cell can be reduced, thereby improving UE transmission performance.
本公开实施例提供的SDT处理方法、设备及***，可以应用于通信***中。具体可以应用于基于该通信***，UE根据生成的随机数，确定是否推迟SDT或取消SDT的过程中。The SDT processing method, device, and system provided by the embodiments of the present disclosure can be applied to a communication system. Specifically, it can be applied to a process in which the UE determines whether to postpone or cancel SDT based on the generated random number based on the communication system.
图1示出了本公开实施例提供的一种通信***的架构示意图。如图1所示，该通信***可以包括UE 01和网络设备02。其中，UE 01与网络设备02之间可以建立连接并通信。Fig. 1 shows a schematic structural diagram of a communication system provided by an embodiment of the present disclosure. As shown in Figure 1, the communication system may include UE 01 and network equipment 02. Among them, a connection and communication can be established between UE 01 and network device 02.
UE是一种向用户提供语音和/或数据连通性的设备，具有有线/无线连接功能的手持式设备，或连接到无线调制解调器的其它处理设备。UE可以经过无线接入网(radio access network，RAN)与一个或多个核心网设备进行通信。UE可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，也可以是便携式、袖珍 式、手持式、计算机内置的或者车载的移动装置，它们与RAN交换语言和/或数据，例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)等设备。UE也可以称为用户代理(user agent)或者终端设备等。A UE is a device that provides voice and/or data connectivity to users, a handheld device with wired/wireless connection functions, or other processing devices connected to a wireless modem. The UE may communicate with one or more core network devices through a radio access network (RAN). The UE can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal. It can also be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device, which exchanges languages with the RAN And/or data, for example, personal communication service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants) , PDA) and other equipment. The UE may also be referred to as a user agent or terminal device.
网络设备可以为基站。基站是一种部署在RAN中用于为UE提供无线通信功能的装置。基站可以包括各种形式的宏基站、微基站、中继站、接入点等等。在采用不同的无线接入技术的***中，具备基站功能的设备的名称可能会有所不同，例如，在第三代移动通信(3G)网络中，称为基站(NodeB)；在LTE***中，称为演进型基站(evolved NodeB，eNB或eNodeB)；在第五代移动通信(5G)网络中，称为gNB等等。随着通信技术的演进，“基站”这一名称可能会发生变化。The network device may be a base station. A base station is a device deployed in the RAN to provide wireless communication functions for the UE. The base station may include various forms of macro base stations, micro base stations, relay stations, access points, and so on. In systems using different wireless access technologies, the names of devices with base station functions may be different. For example, in third-generation mobile communication (3G) networks, they are called base stations (NodeB); in LTE systems , Called evolved NodeB (eNB or eNodeB); in the fifth generation mobile communication (5G) network, called gNB and so on. With the evolution of communication technology, the name "base station" may change.
下面结合附图，通过具体的实施例及其应用场景对本公开实施例提供的一种SDT处理方法、设备及***进行详细地说明。The following describes in detail an SDT processing method, device, and system provided in the embodiments of the present disclosure through specific embodiments and application scenarios with reference to the accompanying drawings.
基于如图1所示的通信***，本公开实施例提供一种SDT处理方法，如图2所示，该SDT处理方法可以包括下述的步骤201和步骤202。Based on the communication system shown in FIG. 1, an embodiment of the present disclosure provides an SDT processing method. As shown in FIG. 2, the SDT processing method may include the following steps 201 and 202.
步骤201、在UE触发第一SDT随机接入过程的情况下，UE生成第一传输随机数。Step 201: When the UE triggers the first SDT random access procedure, the UE generates a first transmission random number.
步骤202、UE根据第一传输随机数，确定是否推迟SDT或取消SDT。Step 202: The UE determines whether to postpone the SDT or cancel the SDT according to the first transmission random number.
本公开实施例中，上述第一传输随机数为UE生成的随机数。In the embodiment of the present disclosure, the foregoing first transmission random number is a random number generated by the UE.
可选地，本公开实施例中，上述第一SDT随机接入过程可以为SDT四步随机接入过程(SDT 4-step RACH)或SDT两步随机接入过程(SDT 2-step RACH)。Optionally, in the embodiment of the present disclosure, the foregoing first SDT random access process may be an SDT four-step random access process (SDT 4-step RACH) or an SDT two-step random access process (SDT 2-step RACH).
需要说明的是，上述SDT四步随机接入过程可以理解为：触发在四步随机接入过程中进行SDT，上述SDT两步随机接入过程可以理解为：触发在两步随机接入过程中进行SDT。It should be noted that the foregoing SDT four-step random access process can be understood as: triggering SDT in the four-step random access process, and the foregoing SDT two-step random access process can be understood as: triggering in the two-step random access process Perform SDT.
可选地，本公开实施例中，上述SDT四步随机接入过程可以包括CP-SDT 4-step RACH(如，通过信令无线承载在4步随机接入过程的第3条消息(即Msg3)发送数据)和UP-SDT 4-step RACH(如，通过数据无线承载在4步随机接入过程的第3条消息发送数据)；上述SDT两步随机接入过程可以包括CP-SDT 2-step RACH(如，通过信令无线承载在2步随机接入过程的消息A(即MsgA)发送数据)和UP-SDT 2-step RACH(如，通过数据无线承载在2步随机接入过程的消息A发送数据)。Optionally, in the embodiments of the present disclosure, the above-mentioned SDT four-step random access process may include CP-SDT 4-step RACH (for example, the third message of the 4-step random access process (ie Msg3 ) Send data) and UP-SDT 4-step RACH (for example, send data in the third message of the 4-step random access process through the data radio bearer); the above-mentioned SDT two-step random access process can include CP-SDT 2- step RACH (e.g., message A (i.e. MsgA) to send data in the 2-step random access process through signaling radio bearer) and UP-SDT 2-step RACH (e.g., through the data radio bearer in the 2-step random access process Message A sends data).
可选地，本公开实施例中，UE低层(例如媒体访问控制(media access control，MAC)层)接收到高层(例如RRC层)触发SDT之后，UE低层可以触发随机接入过程，并生成第一传输随机数。Optionally, in the embodiments of the present disclosure, after the lower layer of the UE (for example, the media access control (MAC) layer) receives the SDT triggered by the higher layer (for example, the RRC layer), the lower layer of the UE may trigger the random access procedure and generate the first One transmits a random number.
可选地，本公开实施例中，UE可以在区间[0,1)内等概率生成一个随机数(例如第一传输随机数)。Optionally, in the embodiment of the present disclosure, the UE may generate a random number (for example, the first transmission random number) with equal probability in the interval [0, 1).
可以理解，在UE根据第一传输随机数，确定允许UE选择使用SDT的传输资源进行SDT的情况下，UE可以确定不推迟SDT或不取消SDT(即UE确定选择使用SDT的传输资源进行SDT)；在UE根据第一传输随机数，确定不允许(或禁止)UE选择使用SDT的传输资源进行SDT的情况下，UE可以确定推迟SDT或取消SDT。It can be understood that when the UE determines that the UE is allowed to choose to use SDT transmission resources for SDT according to the first transmission random number, the UE may determine not to postpone SDT or not to cancel SDT (that is, the UE determines to choose to use SDT transmission resources for SDT) ; In the case where the UE determines that the UE is not allowed (or forbidden) to choose to use the transmission resources of the SDT for SDT according to the first transmission random number, the UE may determine to postpone the SDT or cancel the SDT.
需要说明的是，上述SDT的传输资源可以理解为专用于SDT的传输资源。若UE 确定选择使用SDT的传输资源进行SDT，则UE可以进行专用于SDT的传输资源的选择和数据传输(即在选择的SDT的传输资源上进行SDT)。It should be noted that the above-mentioned transmission resources of SDT can be understood as transmission resources dedicated to SDT. If the UE decides to use the transmission resources of the SDT for SDT, the UE can select transmission resources dedicated to SDT and data transmission (that is, perform SDT on the transmission resources of the selected SDT).
可选地，本公开实施例中，上述SDT的传输资源可以包括以下至少一项：专用于SDT的PRACH资源、与专用于SDT的PRACH资源有关联关系的PUSCH配置资源。Optionally, in the embodiment of the present disclosure, the above-mentioned SDT transmission resources may include at least one of the following: PRACH resources dedicated to SDT, and PUSCH configuration resources associated with PRACH resources dedicated to SDT.
可以理解，本公开实施例中，上述第一传输随机数可以用于确定是否允许UE选择使用SDT的传输资源进行SDT。It can be understood that, in the embodiment of the present disclosure, the above-mentioned first transmission random number may be used to determine whether to allow the UE to select the transmission resource of the SDT for SDT.
可选地，本公开实施例中，结合图2，如图3所示，上述步骤202具体可以通过下述的步骤202a或步骤202b实现。Optionally, in the embodiment of the present disclosure, with reference to FIG. 2, as shown in FIG. 3, the above step 202 may be specifically implemented by the following step 202a or step 202b.
需要说明的是，图3中为了更加清楚地示意步骤202a和步骤202b的执行关系(即在步骤201之后，执行步骤202a或步骤202b)，步骤202b是以虚线框进行示意的。It should be noted that in FIG. 3, in order to more clearly illustrate the execution relationship between step 202a and step 202b (that is, after step 201, step 202a or step 202b is executed), step 202b is illustrated by a dashed box.
步骤202a、若第一传输随机数满足第一条件，则UE确定选择使用SDT的传输资源进行SDT。 Step 202a: If the first transmission random number satisfies the first condition, the UE determines to use SDT transmission resources for SDT.
本公开实施例中，上述第一条件为：第一传输随机数小于第一SDT传输因子，该第一SDT传输因子用于指示允许UE选择使用SDT的传输资源进行SDT的概率。或者，上述第一条件为：第一传输随机数大于或等于第一SDT传输因子，该第一SDT传输因子用于指示不允许UE选择使用SDT的传输资源进行SDT的概率。In the embodiment of the present disclosure, the above-mentioned first condition is: the first transmission random number is less than the first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is allowed to select the transmission resources of the SDT for SDT. Alternatively, the foregoing first condition is: the first transmission random number is greater than or equal to the first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the transmission resource of the SDT for SDT.
可以理解，在UE生成第一传输随机数之后，UE可以将该第一传输随机数与第一SDT传输因子进行对比，以确定是否推迟SDT或取消SDT。It can be understood that after the UE generates the first transmission random number, the UE may compare the first transmission random number with the first SDT transmission factor to determine whether to postpone the SDT or cancel the SDT.
可选地，本公开实施例中，上述第一SDT传输因子可以为网络设备为UE配置的，且该第一SDT传输因子为与第一SDT随机接入过程的类型对应的SDT传输因子。Optionally, in the embodiment of the present disclosure, the foregoing first SDT transmission factor may be configured by the network device for the UE, and the first SDT transmission factor is an SDT transmission factor corresponding to the type of the first SDT random access process.
可选地，本公开实施例中，在UE确定选择使用SDT的传输资源进行SDT之后，UE可以在选择的SDT的传输资源上进行SDT。Optionally, in the embodiment of the present disclosure, after the UE determines to select the transmission resource of the SDT to perform the SDT, the UE may perform the SDT on the selected transmission resource of the SDT.
步骤202b、若第一传输随机数不满足第一条件，则UE确定推迟SDT或取消SDT。Step 202b: If the first transmission random number does not meet the first condition, the UE determines to postpone the SDT or cancel the SDT.
可选地，本公开实施例中，若第一传输随机数小于第一SDT传输因子(该第一SDT传输因子用于指示允许UE选择使用SDT的传输资源进行SDT的概率)，则UE确定选择使用SDT的传输资源进行SDT；若第一传输随机数大于或等于第一SDT传输因子(该第一SDT传输因子用于指示允许UE选择使用SDT的传输资源进行SDT的概率)，则UE确定推迟SDT或取消SDT。Optionally, in the embodiment of the present disclosure, if the first transmission random number is less than the first SDT transmission factor (the first SDT transmission factor is used to indicate the probability that the UE is allowed to choose to use SDT transmission resources for SDT), the UE determines the selection Use SDT transmission resources for SDT; if the first transmission random number is greater than or equal to the first SDT transmission factor (the first SDT transmission factor is used to indicate the probability that the UE is allowed to select the SDT transmission resource for SDT), the UE determines to postpone SDT or cancel SDT.
可选地，本公开实施例中，若第一传输随机数大于或等于第一SDT传输因子(该第一SDT传输因子用于指示不允许UE选择使用SDT的传输资源进行SDT的概率)，则UE确定选择使用SDT的传输资源进行SDT；若第一传输随机数小于第一SDT传输因子(该第一SDT传输因子用于指示不允许UE选择使用SDT的传输资源进行SDT的概率)，则UE确定推迟SDT或取消SDT。Optionally, in the embodiment of the present disclosure, if the first transmission random number is greater than or equal to the first SDT transmission factor (the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the transmission resources of the SDT for SDT), then The UE determines to use the SDT transmission resource for SDT; if the first transmission random number is less than the first SDT transmission factor (the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the SDT transmission resource for SDT), then the UE Decide to postpone or cancel SDT.
本公开实施例中，UE可以判断第一传输随机数是否满足第一条件，以确定是否推迟SDT或取消SDT，即一个服务小区中的多个UE都可以判断各自生成的传输随机数是否满足第一条件，以确定是否推迟SDT或取消SDT，而并非直接选择使用SDT的传输资源进行SDT，因此可以减少一个服务小区中使用SDT的传输资源进行SDT的UE的数量，从而可以提高UE的传输性能。In the embodiment of the present disclosure, the UE can determine whether the first transmission random number meets the first condition to determine whether to postpone or cancel SDT, that is, multiple UEs in a serving cell can determine whether the transmission random number generated by each meets the first condition. A condition to determine whether to postpone or cancel SDT, instead of directly choosing to use SDT transmission resources for SDT, so it can reduce the number of UEs that use SDT transmission resources for SDT in a serving cell, thereby improving UE transmission performance .
本公开实施例提供一种SDT处理方法，在UE触发第一SDT随机接入过程的情况 下，UE可以根据生成的第一传输随机数，确定是否推迟SDT或取消SDT。由于UE可以根据随机生成的第一传输随机数，确定是否推迟SDT或取消SDT，即一个服务小区中的多个UE都可以随机生成一个传输随机数，并根据生成的传输随机数确定是否推迟SDT或取消SDT，而并非直接选择使用SDT的传输资源进行SDT，因此可以减少一个服务小区中使用SDT的传输资源进行SDT的UE的数量，从而可以提高UE的传输性能。The embodiment of the present disclosure provides an SDT processing method. When the UE triggers the first SDT random access procedure, the UE can determine whether to postpone or cancel the SDT according to the generated first transmission random number. Since the UE can determine whether to postpone or cancel SDT according to the first random number generated randomly, that is, multiple UEs in a serving cell can randomly generate a transmission random number, and determine whether to postpone SDT according to the generated transmission random number Or cancel SDT instead of directly choosing to use SDT transmission resources for SDT. Therefore, the number of UEs that use SDT transmission resources for SDT in a serving cell can be reduced, thereby improving UE transmission performance.
进一步地，通过减少一个服务小区中使用SDT的传输资源进行SDT的UE的数量，以避免无线资源负荷不均衡，保证数据传输的可靠性和资源利用率，减少***整体信令开销，从而可以提高***整体性能。Furthermore, by reducing the number of UEs that use SDT transmission resources for SDT in a serving cell, it is possible to avoid unbalanced radio resource load, ensure the reliability of data transmission and resource utilization, and reduce the overall signaling overhead of the system, thereby improving Overall system performance.
可选地，本公开实施例中，结合图2，如图4所示，在上述步骤201之前，本公开实施例提供的SDT处理方法还可以包括下述的步骤301和步骤302。Optionally, in the embodiment of the present disclosure, with reference to FIG. 2, as shown in FIG. 4, before the above step 201, the SDT processing method provided in the embodiment of the present disclosure may further include the following steps 301 and 302.
步骤301、网络设备向UE发送配置信息。Step 301: The network device sends configuration information to the UE.
步骤302、UE接收网络设备发送的配置信息。Step 302: The UE receives configuration information sent by the network device.
本公开实施例中，上述配置信息包括以下至少一项：每种随机接入过程类型对应的SDT传输因子、第一定时器的时长、第二定时器的时长、第一计数器的最大计数门限值、第二计数器的最大计数门限值、推迟指示信息(backoff indicator)、支持SDT的邻小区的信息。In the embodiment of the present disclosure, the above-mentioned configuration information includes at least one of the following: the SDT transmission factor corresponding to each type of random access process, the duration of the first timer, the duration of the second timer, and the maximum count threshold of the first counter Value, the maximum count threshold of the second counter, backoff indicator, and information about neighboring cells that support SDT.
本公开实施例中，上述第一定时器用于指示允许UE确定恢复推迟的SDT的时长，第二定时器用于指示允许UE确定恢复取消的SDT的时长，第一计数器用于累计UE确定推迟SDT的次数，第二计数器用于累计UE进行小区重选评估的次数，推迟指示信息用于指示允许UE确定推迟SDT的最大时长；支持SDT的邻小区的信息包括以下至少一项：UE所在服务小区的邻小区的标识、UE所在服务小区的邻小区的SDT配置参数信息、UE所在服务小区的邻小区对应的频点优先级。In the embodiment of the present disclosure, the above-mentioned first timer is used to indicate the duration of allowing the UE to determine the resumption of the deferred SDT, the second timer is used to indicate the duration of allowing the UE to determine the resumption of the canceled SDT, and the first counter is used to accumulate the UE’s determination to defer the SDT. The second counter is used to accumulate the number of cell reselection evaluations performed by the UE, and the postponement indication information is used to indicate the maximum duration for allowing the UE to determine the postponement of SDT; the information of neighboring cells that support SDT includes at least one of the following: The identity of the neighboring cell, the SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
可选地，本公开实施例中，上述SDT配置参数信息可以包括以下至少一项：UE所在服务小区的邻小区是否支持CP-SDT的信息、UE所在服务小区的邻小区是否支持UP-SDT的信息、UE所在服务小区的邻小区的SDT最大允许传输块大小(transmission block size，TBS)、UE所在服务小区的邻小区的SDT随机接入资源参数。Optionally, in the embodiments of the present disclosure, the above-mentioned SDT configuration parameter information may include at least one of the following: whether the neighboring cell of the serving cell where the UE is located supports CP-SDT information, and whether the neighboring cell of the serving cell where the UE is located supports UP-SDT Information, SDT maximum allowable transmission block size (TBS) of the neighboring cell of the serving cell where the UE is located, and SDT random access resource parameters of the neighboring cell of the serving cell where the UE is located.
可选地，本公开实施例中，网络设备可以向一个服务小区中的多个UE广播***消息(该***消息中包括配置信息)。Optionally, in the embodiment of the present disclosure, the network device may broadcast a system message (the system message includes configuration information) to multiple UEs in a serving cell.
可选地，本公开实施例中，网络设备可以对每种类型的随机接入过程分别配置一个SDT传输因子。例如，网络设备为四步随机接入过程配置的SDT传输因子为0.5，为两步随机接入过程配置的SDT传输因子为0.3。Optionally, in the embodiment of the present disclosure, the network device may configure an SDT transmission factor for each type of random access process. For example, the SDT transmission factor configured by the network device for the four-step random access process is 0.5, and the SDT transmission factor configured for the two-step random access process is 0.3.
可选地，本公开实施例中，UE所在服务小区的邻小区的标识可以包括以下至少一项：邻小区对应的小区定义的同步信号块(cell defining-synchronization signal block，CD-SSB)的频点、物理小区标识(physical cell identifier，PCI)等。Optionally, in the embodiments of the present disclosure, the identifier of the neighboring cell of the serving cell where the UE is located may include at least one of the following: the frequency of the cell defining-synchronization signal block (cell definition-synchronization signal block, CD-SSB) corresponding to the neighboring cell Point, physical cell identifier (PCI), etc.
可选地，本公开实施例中，上述SDT随机接入资源参数可以为SDT-随机接入前导码(preamble)。Optionally, in the embodiments of the present disclosure, the above-mentioned SDT random access resource parameter may be SDT-random access preamble.
可选地，本公开实施例中，上述随机接入资源参数可以包括各个覆盖增强范围(coverage enhancement level，CE level)下可用的PRACH资源。Optionally, in the embodiments of the present disclosure, the aforementioned random access resource parameters may include PRACH resources available under each coverage enhancement level (CE level).
本公开实施例中，网络设备可以发送配置信息，以向一个服务小区中的多个UE配置是否推迟SDT或取消SDT的判断条件，从而一个服务小区中的多个UE均可以根据该配置信息确定是否推迟SDT或取消SDT，而并非直接选择使用SDT的传输资源进行SDT，因此可以减少一个服务小区中使用SDT的传输资源进行SDT的UE的数量，从而可以提高UE的传输性能。In the embodiments of the present disclosure, the network device can send configuration information to configure multiple UEs in a serving cell with a determination condition for deferring or canceling SDT, so that multiple UEs in a serving cell can determine according to the configuration information Whether to postpone or cancel SDT instead of directly choosing to use SDT transmission resources for SDT, it can reduce the number of UEs that use SDT transmission resources for SDT in a serving cell, thereby improving UE transmission performance.
可选地，本公开实施例中，在上述步骤202之后，本公开实施例提供的SDT处理方法还可以包括下述的步骤401。Optionally, in the embodiment of the present disclosure, after the above step 202, the SDT processing method provided in the embodiment of the present disclosure may further include the following step 401.
步骤401、若确定推迟SDT，则UE启动第一定时器，和/或，对第一计数器进行累加1操作。Step 401: If it is determined to postpone the SDT, the UE starts a first timer, and/or performs an operation of accumulating 1 on the first counter.
可选地，本公开实施例中，若确定推迟SDT，MAC层可以启动第一定时器，和/或，对第一计数器进行累加1操作。Optionally, in the embodiment of the present disclosure, if it is determined to postpone the SDT, the MAC layer may start the first timer, and/or perform an accumulation operation on the first counter.
可选地，本公开实施例中，在上述步骤401之后，本公开实施例提供的SDT处理方法还可以包括下述的步骤501、步骤502和步骤503(或步骤504)。Optionally, in the embodiment of the present disclosure, after the above step 401, the SDT processing method provided in the embodiment of the present disclosure may further include the following step 501, step 502, and step 503 (or step 504).
步骤501、UE生成时长随机数。Step 501: The UE generates a random number of duration.
本公开实施例中，上述时长随机数用于指示推迟SDT的时长。In the embodiment of the present disclosure, the aforementioned random number of duration is used to indicate the duration of postponing the SDT.
可选地，本公开实施例中，UE可以在0到最大时长(即推迟指示信息指示的允许UE确定推迟SDT的最大时长)内等概率生成一个随机数(即时长随机数)，并将该一个随机数作为推迟SDT的时长。Optionally, in the embodiments of the present disclosure, the UE can generate a random number (an instant long random number) with equal probability from 0 to the maximum duration (that is, the maximum duration indicated by the postponement indication information that allows the UE to determine the postponement of the SDT), and combine the A random number is used as the length of time to postpone SDT.
步骤502、在推迟SDT时长随机数指示的时长之后，UE生成第二传输随机数。Step 502: After delaying the duration indicated by the SDT duration random number, the UE generates a second transmission random number.
本公开实施例中，上述第二传输随机数用于确定是否允许UE选择使用SDT的传输资源进行SDT。In the embodiment of the present disclosure, the above-mentioned second transmission random number is used to determine whether the UE is allowed to select the transmission resource of the SDT for SDT.
可选地，本公开实施例中，UE可以在区间[0,1)内等概率生成一个随机数(例如第二传输随机数)。Optionally, in the embodiment of the present disclosure, the UE may generate a random number (for example, the second transmission random number) with equal probability in the interval [0, 1).
步骤503、若第二传输随机数满足第一条件，则UE确定选择使用SDT的传输资源进行SDT，并停止第一定时器，和/或，对第一计数器进行重置操作。Step 503: If the second transmission random number satisfies the first condition, the UE determines to use the transmission resource of the SDT for SDT, stops the first timer, and/or performs a reset operation on the first counter.
可以理解，在UE生成第二传输随机数之后，UE可以将该第二传输随机数与第一SDT传输因子进行对比，以确定是否推迟SDT或取消SDT。It can be understood that after the UE generates the second transmission random number, the UE may compare the second transmission random number with the first SDT transmission factor to determine whether to postpone the SDT or cancel the SDT.
需要说明的是，上述对第一计数器进行重置操作可以理解为：将第一计数器的计数置为0。It should be noted that the above reset operation on the first counter can be understood as: setting the count of the first counter to zero.
步骤504、若第二传输随机数不满足第一条件，则UE确定推迟SDT，若满足第二条件，则确定取消SDT。Step 504: If the second transmission random number does not meet the first condition, the UE determines to postpone the SDT, and if the second condition is met, determines to cancel the SDT.
本公开实施例中，上述第二条件包括以下至少一项：第一定时器超时、第一计数器的累计次数大于或等于第一计数器的最大计数门限值。In the embodiment of the present disclosure, the foregoing second condition includes at least one of the following: the first timer expires, and the cumulative number of the first counter is greater than or equal to the maximum count threshold of the first counter.
可选地，本公开实施例中，若第二传输随机数小于第一SDT传输因子(该第一SDT传输因子用于指示允许UE选择使用SDT的传输资源进行SDT的概率)，则UE确定选择使用SDT的传输资源进行SDT，并停止第一定时器，和/或，对第一计数器进行重置操作；若第二传输随机数大于或等于第一SDT传输因子(该第一SDT传输因子用于指示允许UE选择使用SDT的传输资源进行SDT的概率)，则UE确定推迟SDT(即继续执行上述步骤501、步骤502和步骤503(或步骤504))，若满足第二 条件，则确定取消SDT。Optionally, in the embodiment of the present disclosure, if the second transmission random number is less than the first SDT transmission factor (the first SDT transmission factor is used to indicate the probability that the UE is allowed to select the transmission resources of the SDT for SDT), the UE determines the selection Use SDT transmission resources to perform SDT and stop the first timer, and/or reset the first counter; if the second transmission random number is greater than or equal to the first SDT transmission factor (the first SDT transmission factor is used In order to indicate the probability that the UE is allowed to choose to use SDT transmission resources for SDT), the UE determines to postpone the SDT (that is, continue to perform the above step 501, step 502, and step 503 (or step 504)). If the second condition is met, it determines to cancel SDT.
可选地，本公开实施例中，若第二传输随机数大于或等于第一SDT传输因子(该第一SDT传输因子用于指示不允许UE选择使用SDT的传输资源进行SDT的概率)，则UE确定选择使用SDT的传输资源进行SDT，并停止第一定时器，和/或，对第一计数器进行重置操作；若第二传输随机数小于第一SDT传输因子(该第一SDT传输因子用于指示不允许UE选择使用SDT的传输资源进行SDT的概率)，则UE确定推迟SDT，若满足第二条件，则确定取消SDT。Optionally, in the embodiment of the present disclosure, if the second transmission random number is greater than or equal to the first SDT transmission factor (the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the transmission resources of the SDT for SDT), then The UE determines to use SDT transmission resources for SDT, and stops the first timer, and/or resets the first counter; if the second transmission random number is less than the first SDT transmission factor (the first SDT transmission factor It is used to indicate the probability that the UE is not allowed to choose to use the transmission resources of the SDT for SDT), the UE determines to postpone the SDT, and if the second condition is met, determines to cancel the SDT.
可选地，本公开实施例中，UE每确定推迟SDT一次，第一计数器则进行一次累加1操作，若UE确定推迟SDT的累计次数大于或等于第一计数器的最大计数门限值，则UE确定取消SDT。Optionally, in the embodiment of the present disclosure, each time the UE determines to postpone the SDT, the first counter performs an accumulation operation. If the UE determines that the cumulative number of postponed SDT is greater than or equal to the maximum count threshold of the first counter, the UE Confirm to cancel SDT.
可选地，本公开实施例中，MAC层可以向高层发送指示信息，以指示SDT被取消。Optionally, in the embodiment of the present disclosure, the MAC layer may send indication information to the higher layer to indicate that the SDT is cancelled.
本公开实施例中，UE可以在推迟SDT时长随机数指示的时长之后，再次生成一个随机数(即第二传输随机数)，以判断是否继续推迟SDT或取消SDT，从而以提高UE的传输性能。In the embodiments of the present disclosure, the UE can generate a random number (ie, the second transmission random number) again after deferring the duration indicated by the SDT duration random number to determine whether to continue to postpone the SDT or cancel the SDT, so as to improve the UE's transmission performance .
可选地，本公开实施例中，在上述步骤202或步骤504之后，本公开实施例提供的SDT处理方法还可以包括下述的步骤601。Optionally, in the embodiment of the present disclosure, after the above step 202 or step 504, the SDT processing method provided in the embodiment of the present disclosure may further include the following step 601.
步骤601、若确定取消SDT，则UE启动第二定时器，和/或，对第二计数器进行累加1操作。Step 601: If it is determined to cancel the SDT, the UE starts a second timer, and/or performs an operation of accumulating 1 on the second counter.
可选地，本公开实施例中，UE高层在接收到MAC层发送的指示信息之后，可以启动第二定时器，和/或，对第二计数器进行累加1操作。Optionally, in the embodiment of the present disclosure, after receiving the indication information sent by the MAC layer, the higher layer of the UE may start the second timer, and/or perform an operation of accumulating the second counter by 1.
可选地，本公开实施例中，在上述步骤601之后，本公开实施例提供的SDT处理方法还可以包括下述的步骤701、步骤702和步骤703(或步骤704)。Optionally, in the embodiment of the present disclosure, after the above step 601, the SDT processing method provided in the embodiment of the present disclosure may further include the following step 701, step 702, and step 703 (or step 704).
步骤701、UE根据支持SDT的邻小区的信息确定候选小区。Step 701: The UE determines a candidate cell according to the information of neighboring cells that support SDT.
可以理解，UE可以将支持SDT的邻小区的信息指示的小区确定为候选小区，该候选小区包括至少一个小区。It can be understood that the UE may determine the cell indicated by the information of the neighboring cell supporting SDT as a candidate cell, and the candidate cell includes at least one cell.
步骤702、UE对候选小区中的小区进行小区重选评估。Step 702: The UE performs cell reselection evaluation on cells among the candidate cells.
可选地，本公开实施例中，上述步骤702具体可以通过下述的步骤702a实现。Optionally, in the embodiment of the present disclosure, the foregoing step 702 may be specifically implemented by the following step 702a.
步骤702a、UE按照频点优先级，从高优先级频点开始，依次对候选小区中的小区进行小区重选评估。Step 702a: The UE performs cell reselection evaluation on the cells of the candidate cells in sequence starting from the high priority frequency points according to the frequency point priority.
可以理解，UE可以根据UE所在服务小区的邻小区对应的频点优先级，从高优先级频点开始，依次评估每一个频点是否有满足重选条件的小区。It can be understood that the UE can start from the high-priority frequency according to the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located, and sequentially evaluate whether each frequency point has a cell that meets the reselection condition.
步骤703、若候选小区中的至少一个第一小区满足重选条件，则UE将至少一个第一小区中频点优先级最高的第一小区确定为目标小区，并在目标小区中触发第一SDT随机接入过程，以及停止第二定时器，和/或，对第二计数器进行重置操作。Step 703: If at least one first cell among the candidate cells meets the reselection condition, the UE determines the first cell with the highest frequency point priority among the at least one first cell as the target cell, and triggers the first SDT randomly in the target cell. Access process, and stop the second timer, and/or reset the second counter.
本公开实施例中，上述重选条件包括以下至少一项：小区满足重选准则和SDT配置参数信息满足第一SDT随机接入过程对应的触发条件。In the embodiment of the present disclosure, the aforementioned reselection condition includes at least one of the following: the cell satisfies the reselection criterion and the SDT configuration parameter information satisfies the trigger condition corresponding to the first SDT random access procedure.
可选地，本公开实施例中，上述重选准则可以包括以下至少一项：S准则和R准则。Optionally, in the embodiment of the present disclosure, the aforementioned reselection criterion may include at least one of the following: an S criterion and an R criterion.
需要说明的是，针对S准则和R准则的说明，可以参见相关技术中的相关描述，此处不予赘述。It should be noted that, for the description of the S criterion and the R criterion, please refer to the relevant description in the related technology, which will not be repeated here.
可选地，本公开实施例中，上述重选准则可以为网络设备配置的或预定义的(例如协议规定的)。Optionally, in the embodiment of the present disclosure, the above-mentioned reselection criterion may be configured by the network device or predefined (for example, stipulated by a protocol).
可选地，本公开实施例中，若SDT配置参数信息包括UE所在服务小区的邻小区支持CP-SDT的信息，则SDT配置参数信息满足第一SDT随机接入过程对应的触发条件。Optionally, in the embodiments of the present disclosure, if the SDT configuration parameter information includes information that the neighboring cell of the serving cell where the UE is located supports CP-SDT, the SDT configuration parameter information satisfies the trigger condition corresponding to the first SDT random access procedure.
可选地，本公开实施例中，若SDT配置参数信息包括UE所在服务小区的邻小区支持UP-SDT的信息，则SDT配置参数信息满足第一SDT随机接入过程对应的触发条件。Optionally, in the embodiment of the present disclosure, if the SDT configuration parameter information includes information that the neighboring cell of the serving cell where the UE is located supports UP-SDT, the SDT configuration parameter information satisfies the trigger condition corresponding to the first SDT random access procedure.
可选地，本公开实施例中，若SDT配置参数信息包括UE所在服务小区的邻小区的SDT最大允许TBS，则SDT配置参数信息满足第一SDT随机接入过程对应的触发条件可以理解为：UE所在服务小区的邻小区的SDT最大允许TBS大于或等于第一SDT随机接入过程对应的SDT传输块大小。Optionally, in the embodiments of the present disclosure, if the SDT configuration parameter information includes the SDT maximum allowable TBS of the neighboring cell of the serving cell where the UE is located, the SDT configuration parameter information meeting the trigger condition corresponding to the first SDT random access procedure can be understood as: The maximum allowable SDT TBS of the neighboring cell of the serving cell where the UE is located is greater than or equal to the SDT transport block size corresponding to the first SDT random access procedure.
可选地，本公开实施例中，若SDT配置参数信息包括专用于SDT的PRACH资源、或者与专用于SDT的PRACH资源有关联关系的PUSCH配置资源，则SDT配置参数信息满足第一SDT随机接入过程对应的触发条件。Optionally, in the embodiment of the present disclosure, if the SDT configuration parameter information includes a PRACH resource dedicated to SDT or a PUSCH configuration resource associated with a PRACH resource dedicated to SDT, the SDT configuration parameter information satisfies the first SDT random access The trigger condition corresponding to the input process.
可选地，本公开实施例中，若SDT配置参数信息包括UE所确定的CE level对应的专用于SDT的PRACH资源，则SDT配置参数信息满足第一SDT随机接入过程对应的触发条件。Optionally, in the embodiment of the present disclosure, if the SDT configuration parameter information includes the PRACH resource dedicated to SDT corresponding to the CE level determined by the UE, the SDT configuration parameter information satisfies the trigger condition corresponding to the first SDT random access procedure.
可选地，本公开实施例中，若SDT配置参数信息包括比UE所确定的CE level更高的等级对应的专用于SDT的PRACH资源，则SDT配置参数信息满足第一SDT随机接入过程对应的触发条件。Optionally, in the embodiments of the present disclosure, if the SDT configuration parameter information includes a PRACH resource dedicated to SDT corresponding to a higher CE level than the CE level determined by the UE, the SDT configuration parameter information satisfies the first SDT random access process correspondence Trigger conditions.
可选地，本公开实施例中，若UE对候选小区中的部分小区进行小区重选评估之后，该部分小区均不满足重选条件，则UE可以回退生成RRC消息，以指示UE触发随机接入过程(即常规随机接入过程)。Optionally, in the embodiments of the present disclosure, if the UE performs cell reselection evaluation on some of the candidate cells and none of the cells meets the reselection conditions, the UE may back off to generate an RRC message to instruct the UE to trigger random Access process (that is, regular random access process).
可选地，本公开实施例中，若候选小区中的所有小区均不满足重选条件，则UE可以回退生成RRC消息，以指示UE触发随机接入过程。Optionally, in the embodiments of the present disclosure, if all cells in the candidate cells do not meet the reselection condition, the UE may back off to generate an RRC message to instruct the UE to trigger the random access procedure.
步骤704、若满足第三条件，则UE回退生成RRC消息，以指示UE触发随机接入过程。Step 704: If the third condition is met, the UE rolls back to generate an RRC message to instruct the UE to trigger the random access procedure.
本公开实施例中，上述第三条件包括以下至少一项：第二定时器超时、第二计数器的累计次数大于或等于第二计数器的最大计数门限值。In the embodiment of the present disclosure, the above-mentioned third condition includes at least one of the following: the second timer expires, and the cumulative number of the second counter is greater than or equal to the maximum count threshold of the second counter.
可选地，本公开实施例中，上述RRC消息可以为RRC连接请求(RRC connection request)、RRC建立请求(RRC setup request)、RRC连接恢复请求(RRC connection resume request)、RRC恢复请求(RRC resume request)或RRC resume request1。Optionally, in the embodiments of the present disclosure, the foregoing RRC message may be an RRC connection request (RRC connection request), an RRC setup request (RRC setup request), an RRC connection resume request (RRC connection resume request), and an RRC resume request (RRC resume request). request) or RRC resume request1.
可选地，本公开实施例中，上述随机接入过程可以为两步随机接入过程或四步随机接入过程。Optionally, in the embodiment of the present disclosure, the foregoing random access process may be a two-step random access process or a four-step random access process.
可选地，本公开实施例中，UE每进行一次小区重选评估，第二计数器则进行一次累加1操作，若UE进行小区重选评估的累计次数大于或等于第二计数器的最大计数 门限值，则UE回退生成RRC消息，以指示UE触发随机接入过程。Optionally, in the embodiments of the present disclosure, each time the UE performs cell reselection evaluation, the second counter performs an accumulating operation of 1, if the cumulative number of times the UE performs cell reselection evaluation is greater than or equal to the maximum count threshold of the second counter Value, the UE falls back to generate an RRC message to instruct the UE to trigger the random access procedure.
本公开实施例中，UE可以对候选小区中的小区进行小区重选评估，并根据小区重选评估的结果，确定触发第一SDT随机接入过程还是回退触发随机接入过程，从而以提高UE的传输性能。In the embodiments of the present disclosure, the UE may perform cell reselection evaluation on the cells in the candidate cells, and according to the result of the cell reselection evaluation, determine whether to trigger the first SDT random access process or fall back to trigger the random access process, thereby improving The transmission performance of the UE.
下面通过具体的实施例方式(例如实施方式一)，对本公开实施例提供的SDT处理方法进行描述。The following describes the SDT processing method provided by the embodiments of the present disclosure through specific embodiments (for example, Embodiment 1).
实施方式一Implementation mode one
步骤11、网络设备通过***消息向UE发送与SDT传输有关的配置信息。Step 11. The network device sends configuration information related to SDT transmission to the UE through a system message.
本公开实施例中，上述配置信息可以包括以下至少一项：某一RACH类型(例如2-step RACH、4-step RACH)对应的SDT传输因子、第一定时器的时长、第二定时器的时长、第一计数器的最大计数门限值、第二计数器的最大计数门限值、用于SDT的推迟指示信息(backoff indicator)、支持SDT的邻小区的信息(即支持SDT的小区的白名单列表)。In the embodiments of the present disclosure, the foregoing configuration information may include at least one of the following: SDT transmission factor corresponding to a certain RACH type (for example, 2-step RACH, 4-step RACH), the duration of the first timer, and the value of the second timer Duration, maximum count threshold of the first counter, maximum count threshold of the second counter, backoff indicator for SDT, information of neighboring cells that support SDT (that is, the whitelist of cells that support SDT List).
示例性的，上述***消息中配置2-step RACH对应的SDT传输因子为0.3，4-step RACH对应的SDT传输因子为0.5。Exemplarily, the SDT transmission factor corresponding to the 2-step RACH is configured to be 0.3 in the above system message, and the SDT transmission factor corresponding to the 4-step RACH is 0.5.
步骤12：MAC层在收到高层(例如RRC层)触发SDT，在触发随机接入过程时，MAC层生成一个随机数并将该随机数与相应RACH类型对应的SDT传输因子进行对比，以判断是否推迟或取消SDT。Step 12: The MAC layer triggers SDT upon receiving the higher layer (such as the RRC layer). When triggering the random access process, the MAC layer generates a random number and compares the random number with the corresponding SDT transmission factor of the corresponding RACH type to determine Whether to postpone or cancel SDT.
可选地，本公开实施例中，UE可以在[0,1)区间内等概率生成一个随机数，当生成的该随机数大于或等于相应RACH类型对应的SDT传输因子时，UE可以推迟SDT并执行下述的步骤13，或者，MAC层可以向高层指示SDT被取消并执行下述的步骤14。Optionally, in the embodiment of the present disclosure, the UE can generate a random number with equal probability in the interval [0,1). When the generated random number is greater than or equal to the SDT transmission factor corresponding to the corresponding RACH type, the UE can postpone the SDT And perform step 13 below, or the MAC layer can indicate to the higher layer that SDT is cancelled and perform step 14 below.
步骤13：UE确定推迟SDT传输时，MAC层启动/重启第一定时器，和/或，对第一计数器进行累加1操作。UE可以在0和最大时长(即推迟指示信息指示的允许UE确定推迟SDT的最大时长)内等概率生成一个随机数(即时长随机数)，并将该一个随机数作为推迟(backoff)SDT的时长。在推迟SDT时长随机数指示的时长之后，UE可以在[0,1)区间内等概率再次生成一个随机数，如果生成的随机数小于相应RACH类型对应的SDT传输因子，那么UE可以停止第一定时器，和/或，对第一计数器进行重置操作(例如将第一计数器的计数置为0)，并按照协议规则进行SDT资源选择和数据传输。如果当生成的随机数大于或等于相应RACH类型对应的SDT传输因子，那么UE可以继续执行步骤13。如果第一定时器超时，和/或，第一计数器的累计次数达到第一计数器的最大计数门限值，MAC层可以向高层指示SDT被取消。Step 13: When the UE determines to postpone the SDT transmission, the MAC layer starts/restarts the first timer, and/or performs an operation of adding 1 to the first counter. The UE can generate a random number (an instant long random number) with equal probability within 0 and the maximum duration (that is, the maximum duration indicated by the postponement indication information that allows the UE to determine the postponement of the SDT), and use this random number as the backoff SDT duration. After postponing the duration indicated by the SDT duration random number, the UE can generate a random number again with equal probability in the interval [0,1). If the generated random number is less than the SDT transmission factor corresponding to the corresponding RACH type, the UE can stop the first The timer, and/or, resets the first counter (for example, sets the count of the first counter to 0), and performs SDT resource selection and data transmission according to the protocol rules. If the generated random number is greater than or equal to the SDT transmission factor corresponding to the corresponding RACH type, the UE may continue to perform step 13. If the first timer expires, and/or the accumulated number of the first counter reaches the maximum count threshold of the first counter, the MAC layer may indicate to the higher layer that the SDT is cancelled.
步骤14：UE高层接收到SDT被取消的指示之后，可以启动/重启第二定时器，和/或，对第二计数器进行累加1操作，UE可以根据***消息中提供的支持SDT的小区的白名单列表(例如小区会广播邻小区的SDT配置相关信息)，确定可以作为重选小区的候选小区，然后对该候选小区进行小区重选评估(例如UE基于提供的频点优先级的顺序，从高优先级频点开始依次评估每一个频点是否有合适的重选小区)，以确定是否满足重选条件。若有合适的小区，则将对应频点优先级最高的小区作为UE的重选小区(即上述实施例中的目标小区)，并进行小区重选/选择(即在该重选小区中触发第一SDT随机接入过程)，以及停止第二定时器，和/或，对第二计数器进行 重置操作。若候选小区中进行小区重选评估的小区均不满足重选条件，则UE可以回退(fallback)到进行常规RACH(例如RRC信令消息和UP的用户数据不复用在一个TB中，这里RACH可以为2-step RACH或4-step RACH)过程。或者，如果第二定时器超时，和/或，第二计数器的累计次数达到第二计数器的最大计数门限值，则UE可以回退到进行常规RACH。Step 14: After the upper layer of the UE receives the indication that the SDT is cancelled, the second timer can be started/restarted, and/or the second counter can be accumulated by 1, and the UE can follow the white information provided in the system message of the cell supporting SDT. List list (for example, the cell will broadcast the SDT configuration related information of neighboring cells), determine the candidate cell that can be used as the reselection cell, and then perform cell reselection evaluation on the candidate cell (for example, the UE based on the order of the provided frequency priority, from High-priority frequency points start to evaluate each frequency point in turn whether there is a suitable reselection cell) to determine whether the reselection conditions are met. If there is a suitable cell, the cell with the highest corresponding frequency priority is used as the UE's reselection cell (that is, the target cell in the above embodiment), and cell reselection/selection is performed (that is, the second cell is triggered in the reselection cell). An SDT random access procedure), and stop the second timer, and/or reset the second counter. If none of the candidate cells evaluated for cell reselection meets the reselection conditions, the UE can fallback to perform regular RACH (for example, RRC signaling messages and UP user data are not multiplexed in one TB, here RACH can be a 2-step RACH or 4-step RACH process. Alternatively, if the second timer expires, and/or the cumulative number of the second counter reaches the maximum count threshold of the second counter, the UE may fall back to performing regular RACH.
步骤15：如果UE按照上述步骤14进行了小区重选/选择(例如选择到一个有合适SDT配置的小区上)，此时UE不会对第二定时器和/或第二计数器进行任何操作(例如不会启动/重启第二定时器，和/或，不会对第二计数器进行重置操作)，UE高层则再次触发MAC层进行SDT，执行上述步骤11。Step 15: If the UE performs cell reselection/selection according to the above step 14 (for example, selects a cell with a suitable SDT configuration), the UE will not perform any operations on the second timer and/or the second counter ( For example, the second timer will not be started/restarted, and/or the reset operation of the second counter will not be performed), the higher layer of the UE triggers the MAC layer to perform SDT again, and performs step 11 above.
需要说明的是，对上述步骤11-步骤15中涉及到的相关内容均可以参见上述实施例中的相关描述，此处不再赘述。It should be noted that the related content involved in the above step 11 to step 15 can be referred to the related description in the above embodiment, which will not be repeated here.
图5示出了本公开实施例中涉及的UE的一种可能的结构示意图。如图5所示，本公开实施例提供的UE 50可以包括：确定模块51。FIG. 5 shows a schematic diagram of a possible structure of a UE involved in an embodiment of the present disclosure. As shown in FIG. 5, the UE 50 provided by the embodiment of the present disclosure may include: a determining module 51.
其中，确定模块51，用于在UE触发第一SDT随机接入过程的情况下，根据第一传输随机数，确定是否推迟SDT或取消SDT，该第一传输随机数为UE生成的随机数。The determining module 51 is configured to determine whether to postpone SDT or cancel SDT according to the first transmission random number when the UE triggers the first SDT random access procedure, and the first transmission random number is a random number generated by the UE.
在一种可能的实现方式中，上述确定模块51，具体用于若第一传输随机数满足第一条件，则确定选择使用SDT的传输资源进行SDT；或者，若第一传输随机数不满足第一条件，则确定推迟SDT或取消SDT。其中，上述第一条件可以为：第一传输随机数小于第一SDT传输因子，该第一SDT传输因子用于指示允许UE选择使用SDT的传输资源进行SDT的概率。或者，上述第一条件可以为：第一传输随机数大于或等于第一SDT传输因子，该第一SDT传输因子用于指示不允许UE选择使用SDT的传输资源进行SDT的概率。In a possible implementation manner, the above determining module 51 is specifically configured to determine whether to select the transmission resource of SDT for SDT if the first transmission random number meets the first condition; or, if the first transmission random number does not meet the first condition, A condition is determined to postpone or cancel SDT. The above-mentioned first condition may be: the first transmission random number is less than the first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is allowed to select the transmission resource of the SDT for SDT. Alternatively, the foregoing first condition may be: the first transmission random number is greater than or equal to the first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the transmission resource of the SDT for SDT.
在一种可能的实现方式中，结合图5，如图6所示，本公开实施例提供的UE还可以包括：接收模块52。其中，接收模块52，用于在确定模块51根据第一传输随机数，确定是否推迟SDT或取消SDT之前，接收网络设备发送的配置信息，该配置信息包括以下至少一项：每种随机接入过程类型对应的SDT传输因子、第一定时器的时长、第二定时器的时长、第一计数器的最大计数门限值、第二计数器的最大计数门限值、推迟指示信息、支持SDT的邻小区的信息。其中，第一定时器用于指示允许UE确定恢复推迟的SDT的时长，第二定时器用于指示允许UE确定恢复取消的SDT的时长，第一计数器用于累计UE确定推迟SDT的次数，第二计数器用于累计UE进行小区重选评估的次数，推迟指示信息用于指示允许UE确定推迟SDT的最大时长；支持SDT的邻小区的信息包括以下至少一项：UE所在服务小区的邻小区的标识、UE所在服务小区的邻小区的SDT配置参数信息、UE所在服务小区的邻小区对应的频点优先级。In a possible implementation manner, with reference to FIG. 5, as shown in FIG. 6, the UE provided in the embodiment of the present disclosure may further include: a receiving module 52. The receiving module 52 is configured to receive configuration information sent by the network device before the determining module 51 determines whether to postpone or cancel the SDT according to the first transmission random number, and the configuration information includes at least one of the following: The SDT transmission factor corresponding to the process type, the duration of the first timer, the duration of the second timer, the maximum count threshold of the first counter, the maximum count threshold of the second counter, postponement indication information, and neighbors that support SDT Information about the cell. Among them, the first timer is used to indicate the duration of allowing the UE to determine the resumption of the postponed SDT, the second timer is used to indicate the duration of allowing the UE to determine the resumption of the cancelled SDT, the first counter is used to accumulate the number of times the UE determines to postpone the SDT, and the second counter It is used to accumulate the number of UE cell reselection evaluations. The postponement indication information is used to indicate that the UE is allowed to determine the maximum length of time to postpone SDT; the information of neighboring cells that support SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, The SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
在一种可能的实现方式中，上述SDT配置参数信息可以包括以下至少一项：UE所在服务小区的邻小区是否支持控制面CP-SDT的信息、UE所在服务小区的邻小区是否支持用户面UP-SDT的信息、UE所在服务小区的邻小区的SDT最大允许传输块大小、UE所在服务小区的邻小区的SDT随机接入资源参数。In a possible implementation manner, the foregoing SDT configuration parameter information may include at least one of the following: information about whether the neighboring cell of the serving cell where the UE is located supports control plane CP-SDT, and whether the neighboring cell of the serving cell where the UE is located supports user plane UP -SDT information, the maximum allowable SDT transport block size of the neighboring cell of the serving cell where the UE is located, and the SDT random access resource parameters of the neighboring cell of the serving cell where the UE is located.
在一种可能的实现方式中，结合图6，如图7所示，本公开实施例提供的UE还可以包括：处理模块53。其中，处理模块53，用于若确定模块51确定推迟SDT，则启 动第一定时器，和/或，对第一计数器进行累加1操作。In a possible implementation manner, with reference to FIG. 6, as shown in FIG. 7, the UE provided in the embodiment of the present disclosure may further include a processing module 53. Wherein, the processing module 53 is configured to, if the determining module 51 determines to postpone the SDT, start the first timer, and/or perform an operation of accumulating 1 on the first counter.
在一种可能的实现方式中，结合图7，如图8所示，本公开实施例提供的UE还可以包括：生成模块54和停止模块55。其中，生成模块54，用于生成时长随机数，该时长随机数用于指示推迟SDT的时长；并在推迟SDT时长随机数指示的时长之后，生成第二传输随机数，该第二传输随机数用于确定是否允许UE选择使用SDT的传输资源进行SDT。上述确定模块51，还用于若生成模块54生成的第二传输随机数满足第一条件，则确定选择使用SDT的传输资源进行SDT。停止模块55，用于停止第一定时器，和/或，对第一计数器进行重置操作。上述确定模块51，还用于若生成模块54生成的第二传输随机数不满足第一条件，则确定推迟SDT，若满足第二条件，则确定取消SDT，该第二条件包括以下至少一项：第一定时器超时、第一计数器的累计次数大于或等于第一计数器的最大计数门限值。In a possible implementation manner, with reference to FIG. 7, as shown in FIG. 8, the UE provided in the embodiment of the present disclosure may further include: a generating module 54 and a stopping module 55. Wherein, the generating module 54 is used to generate a duration random number, the duration random number is used to indicate the duration of postponing SDT; and after the duration indicated by the SDT duration random number is postponed, a second transmission random number is generated, the second transmission random number Used to determine whether to allow the UE to choose to use SDT transmission resources for SDT. The above determining module 51 is further configured to determine that if the second transmission random number generated by the generating module 54 satisfies the first condition, it is determined to select the transmission resource of the SDT for SDT. The stop module 55 is used to stop the first timer and/or to reset the first counter. The above determining module 51 is further configured to determine to postpone the SDT if the second transmission random number generated by the generating module 54 does not meet the first condition, and determine to cancel the SDT if the second condition is met, the second condition includes at least one of the following : The first timer expires, and the cumulative number of the first counter is greater than or equal to the maximum count threshold of the first counter.
在一种可能的实现方式中，结合图6，如图7所示，本公开实施例提供的UE还可以包括：处理模块53。其中，处理模块53，用于若确定模块51确定取消SDT，则启动第二定时器，和/或，对第二计数器进行累加1操作。In a possible implementation manner, with reference to FIG. 6, as shown in FIG. 7, the UE provided in the embodiment of the present disclosure may further include a processing module 53. The processing module 53 is configured to, if the determining module 51 determines to cancel the SDT, start the second timer, and/or perform an operation of accumulating 1 on the second counter.
在一种可能的实现方式中，上述确定模块51，还用于根据接收模块52接收的支持SDT的邻小区的信息确定候选小区。结合图7，如图9所示，本公开实施例提供的UE还可以包括：评估模块56、停止模块55和回退模块57。其中，评估模块56，用于对确定模块51确定的候选小区中的小区进行小区重选评估。上述确定模块51，还用于若候选小区中的至少一个第一小区满足重选条件，则将至少一个第一小区中频点优先级最高的第一小区确定为目标小区。上述处理模块53，还用于在确定模块51确定的目标小区中触发第一SDT随机接入过程。停止模块55，用于停止第二定时器，和/或，对第二计数器进行重置操作。回退模块57，用于若满足第三条件，则回退生成RRC消息，以指示UE触发随机接入过程。其中，重选条件包括以下至少一项：小区满足重选准则和SDT配置参数信息满足第一SDT随机接入过程对应的触发条件；第三条件包括以下至少一项：第二定时器超时、第二计数器的累计次数大于或等于第二计数器的最大计数门限值。In a possible implementation manner, the above-mentioned determining module 51 is further configured to determine the candidate cell according to the information of the neighboring cell supporting SDT received by the receiving module 52. With reference to FIG. 7, as shown in FIG. 9, the UE provided by the embodiment of the present disclosure may further include: an evaluation module 56, a stop module 55, and a fallback module 57. Wherein, the evaluation module 56 is used to perform cell reselection evaluation on the cell among the candidate cells determined by the determining module 51. The above determining module 51 is further configured to determine the first cell with the highest frequency point priority among the at least one first cell as the target cell if at least one first cell among the candidate cells meets the reselection condition. The above-mentioned processing module 53 is further configured to trigger the first SDT random access procedure in the target cell determined by the determining module 51. The stop module 55 is used to stop the second timer and/or reset the second counter. The fallback module 57 is configured to, if the third condition is met, fallback to generate an RRC message to instruct the UE to trigger a random access procedure. The reselection condition includes at least one of the following: the cell meets the reselection criterion and the SDT configuration parameter information meets the trigger condition corresponding to the first SDT random access procedure; the third condition includes at least one of the following: the second timer expires, the first The cumulative number of the second counter is greater than or equal to the maximum count threshold of the second counter.
在一种可能的实现方式中，上述评估模块56，具体用于按照接收模块52接收的频点优先级，从高优先级频点开始，依次对候选小区中的小区进行小区重选评估。In a possible implementation manner, the above-mentioned evaluation module 56 is specifically configured to perform cell reselection evaluation on the candidate cells in sequence starting from the high-priority frequency point according to the frequency point priority received by the receiving module 52.
本公开实施例提供的UE能够实现上述方法实施例中UE实现的各个过程，为避免重复，具体描述此处不再赘述。The UE provided in the embodiments of the present disclosure can implement each process implemented by the UE in the foregoing method embodiments. To avoid repetition, the specific description will not be repeated here.
本公开实施例提供一种UE，由于UE可以根据随机生成的第一传输随机数，确定是否推迟SDT或取消SDT，即一个服务小区中的多个UE都可以随机生成一个传输随机数，并根据生成的传输随机数确定是否推迟SDT或取消SDT，而并非直接选择使用SDT的传输资源进行SDT，因此可以减少一个服务小区中使用SDT的传输资源进行SDT的UE的数量，从而可以提高UE的传输性能。The embodiments of the present disclosure provide a UE. Since the UE can determine whether to postpone or cancel SDT according to the first random number generated randomly, that is, multiple UEs in a serving cell can randomly generate a random number for transmission, and according to The generated transmission random number determines whether to postpone or cancel SDT, instead of directly choosing to use SDT transmission resources for SDT, so it can reduce the number of UEs that use SDT transmission resources for SDT in a serving cell, thereby improving UE transmission performance.
图10示出了本公开实施例中涉及的网络设备的一种可能的结构示意图。如图10所示，本公开实施例提供的网络设备60可以包括：发送模块61。FIG. 10 shows a schematic diagram of a possible structure of a network device involved in an embodiment of the present disclosure. As shown in FIG. 10, the network device 60 provided by the embodiment of the present disclosure may include: a sending module 61.
其中，发送模块61，用于向UE发送配置信息，该配置信息包括以下至少一项：每种随机接入过程类型对应的SDT传输因子、第一定时器的时长、第二定时器的时长、 第一计数器的最大计数门限值、第二计数器的最大计数门限值、推迟指示信息、支持SDT的邻小区的信息。其中，第一定时器用于指示允许UE确定恢复推迟的SDT的时长，第二定时器用于指示允许UE确定恢复取消的SDT的时长，第一计数器用于累计UE确定推迟SDT的次数，第二计数器用于累计UE进行小区重选评估的次数，推迟指示信息用于指示允许UE确定推迟SDT的最大时长；支持SDT的邻小区的信息包括以下至少一项：UE所在服务小区的邻小区的标识、UE所在服务小区的邻小区的SDT配置参数信息、UE所在服务小区的邻小区对应的频点优先级。The sending module 61 is configured to send configuration information to the UE. The configuration information includes at least one of the following: the SDT transmission factor corresponding to each type of random access process, the duration of the first timer, the duration of the second timer, The maximum count threshold of the first counter, the maximum count threshold of the second counter, postponement indication information, and information about neighboring cells that support SDT. Among them, the first timer is used to indicate the duration of allowing the UE to determine the resumption of the postponed SDT, the second timer is used to indicate the duration of allowing the UE to determine the resumption of the cancelled SDT, the first counter is used to accumulate the number of times the UE determines to postpone the SDT, and the second counter It is used to accumulate the number of UE cell reselection evaluations. The postponement indication information is used to indicate that the UE is allowed to determine the maximum length of time to postpone SDT; the information of neighboring cells that support SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, The SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
在一种可能的实现方式中，上述SDT配置参数信息可以包括以下至少一项：UE所在服务小区的邻小区是否支持CP-SDT的信息、UE所在服务小区的邻小区是否支持UP-SDT的信息、UE所在服务小区的邻小区的SDT最大允许传输块大小、随机接入资源参数。In a possible implementation, the above-mentioned SDT configuration parameter information may include at least one of the following: information about whether the neighboring cell of the serving cell where the UE is located supports CP-SDT, and whether the neighboring cell of the serving cell where the UE is located supports UP-SDT. , The SDT maximum allowable transport block size and random access resource parameters of the neighboring cell of the serving cell where the UE is located.
本公开实施例提供的网络设备能够实现上述方法实施例中网络设备实现的各个过程，为避免重复，具体描述此处不再赘述。The network device provided in the embodiments of the present disclosure can implement the various processes implemented by the network device in the foregoing method embodiments. To avoid repetition, the specific description will not be repeated here.
本公开实施例提供一种网络设备，网络设备可以发送配置信息，以向一个服务小区中的多个UE配置是否推迟SDT或取消SDT的判断条件，从而一个服务小区中的多个UE均可以根据该配置信息确定是否推迟SDT或取消SDT，而并非直接选择使用SDT的传输资源进行SDT，因此可以减少一个服务小区中使用SDT的传输资源进行SDT的UE的数量，从而可以提高UE的传输性能。The embodiments of the present disclosure provide a network device, which can send configuration information to configure multiple UEs in a serving cell whether to defer SDT or cancel SDT judgment conditions, so that multiple UEs in a serving cell can all be based on The configuration information determines whether to postpone SDT or cancel SDT, instead of directly choosing to use SDT transmission resources for SDT. Therefore, the number of UEs that use SDT transmission resources for SDT in a serving cell can be reduced, thereby improving UE transmission performance.
图11示出了本公开实施例提供的一种UE的硬件示意图。如图11所示，该UE 110包括但不限于：射频单元111、网络模块112、音频输出单元113、输入单元114、传感器115、显示单元116、用户输入单元117、接口单元118、存储器119、处理器120、以及电源121等部件。FIG. 11 shows a hardware schematic diagram of a UE provided by an embodiment of the present disclosure. As shown in FIG. 11, the UE 110 includes but is not limited to: a radio frequency unit 111, a network module 112, an audio output unit 113, an input unit 114, a sensor 115, a display unit 116, a user input unit 117, an interface unit 118, a memory 119, The processor 120, and the power supply 121 and other components.
需要说明的是，本领域技术人员可以理解，图11中示出的UE结构并不构成对UE的限定，UE可以包括比图11所示更多或更少的部件，或者组合某些部件，或者不同的部件布置。示例性的，在本公开实施例中，UE包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。It should be noted that those skilled in the art can understand that the structure of the UE shown in FIG. 11 does not constitute a limitation on the UE, and the UE may include more or less components than those shown in FIG. 11, or combine certain components. Or different component arrangements. Exemplarily, in the embodiments of the present disclosure, the UE includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, and a pedometer.
其中，处理器120，用于在UE触发第一SDT随机接入过程的情况下，根据第一传输随机数，确定是否推迟SDT或取消SDT，该第一传输随机数为UE生成的随机数。The processor 120 is configured to determine whether to postpone SDT or cancel SDT according to the first transmission random number when the UE triggers the first SDT random access process, and the first transmission random number is a random number generated by the UE.
本公开实施例提供一种UE，由于UE可以根据随机生成的第一传输随机数，确定是否推迟SDT或取消SDT，即一个服务小区中的多个UE都可以随机生成一个传输随机数，并根据生成的传输随机数确定是否推迟SDT或取消SDT，而并非直接选择使用SDT的传输资源进行SDT，因此可以减少一个服务小区中使用SDT的传输资源进行SDT的UE的数量，从而可以提高UE的传输性能。The embodiments of the present disclosure provide a UE. Since the UE can determine whether to postpone or cancel SDT according to the first random number generated randomly, that is, multiple UEs in a serving cell can randomly generate a random number for transmission, and according to The generated transmission random number determines whether to postpone or cancel SDT, instead of directly choosing to use SDT transmission resources for SDT, so it can reduce the number of UEs that use SDT transmission resources for SDT in a serving cell, thereby improving UE transmission performance.
应理解的是，本公开实施例中，射频单元111可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器120处理；另外，将上行的数据发送给基站。通常，射频单元111包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元111还可以通过无线通信***与网络和其他设备通信。It should be understood that, in the embodiment of the present disclosure, the radio frequency unit 111 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 120; in addition, Uplink data is sent to the base station. Generally, the radio frequency unit 111 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 111 can also communicate with the network and other devices through a wireless communication system.
UE通过网络模块112为用户提供了无线的宽带互联网访问，如帮助用户收发电子 邮件、浏览网页和访问流式媒体等。The UE provides users with wireless broadband Internet access through the network module 112, such as helping users to send and receive e-mails, browse web pages, and access streaming media.
音频输出单元113可以将射频单元111或网络模块112接收的或者在存储器119中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元113还可以提供与UE 110执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元113包括扬声器、蜂鸣器以及受话器等。The audio output unit 113 may convert the audio data received by the radio frequency unit 111 or the network module 112 or stored in the memory 119 into audio signals and output them as sounds. Moreover, the audio output unit 113 may also provide audio output related to a specific function performed by the UE 110 (for example, call signal reception sound, message reception sound, etc.). The audio output unit 113 includes a speaker, a buzzer, a receiver, and the like.
输入单元114用于接收音频或视频信号。输入单元114可以包括图形处理器(graphics processing unit，GPU)1141和麦克风1142，图形处理器1141对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元116上。经图形处理器1141处理后的图像帧可以存储在存储器119(或其它存储介质)中或者经由射频单元111或网络模块112进行发送。麦克风1142可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元111发送到移动通信基站的格式输出。The input unit 114 is used to receive audio or video signals. The input unit 114 may include a graphics processing unit (GPU) 1141 and a microphone 1142. The graphics processing unit 1141 is used to capture still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed. The processed image frame can be displayed on the display unit 116. The image frame processed by the graphics processor 1141 may be stored in the memory 119 (or other storage medium) or sent via the radio frequency unit 111 or the network module 112. The microphone 1142 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to the mobile communication base station via the radio frequency unit 111 for output in the case of a telephone call mode.
UE 110还包括至少一种传感器115，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板1161的亮度，接近传感器可在UE 110移动到耳边时，关闭显示面板1161和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别UE姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器115还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。The UE 110 also includes at least one sensor 115, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 1161 according to the brightness of the ambient light. The proximity sensor can close the display panel 1161 and/or when the UE 110 moves to the ear. Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify UE posture (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 115 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared Sensors, etc., will not be repeated here.
显示单元116用于显示由用户输入的信息或提供给用户的信息。显示单元116可包括显示面板1161，可以采用液晶显示器(liquid crystal display，LCD)、有机发光二极管(organic light-emitting diode，OLED)等形式来配置显示面板1161。The display unit 116 is used to display information input by the user or information provided to the user. The display unit 116 may include a display panel 1161, and the display panel 1161 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
用户输入单元117可用于接收输入的数字或字符信息，以及产生与UE的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元117包括触控面板1171以及其他输入设备1172。触控面板1171，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板1171上或在触控面板1171附近的操作)。触控面板1171可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器120，接收处理器120发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板1171。除了触控面板1171，用户输入单元117还可以包括其他输入设备1172。具体地，其他输入设备1172可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。The user input unit 117 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the UE. Specifically, the user input unit 117 includes a touch panel 1171 and other input devices 1172. The touch panel 1171, also known as a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 1171 or near the touch panel 1171. operating). The touch panel 1171 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 120, the command sent by the processor 120 is received and executed. In addition, the touch panel 1171 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1171, the user input unit 117 may also include other input devices 1172. Specifically, other input devices 1172 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
进一步的，触控面板1171可覆盖在显示面板1161上，当触控面板1171检测到在其上或附近的触摸操作后，传送给处理器120以确定触摸事件的类型，随后处理器120根据触摸事件的类型在显示面板1161上提供相应的视觉输出。虽然在图11中，触控 面板1171与显示面板1161是作为两个独立的部件来实现UE的输入和输出功能，但是在某些实施例中，可以将触控面板1171与显示面板1161集成而实现UE的输入和输出功能，具体此处不做限定。Further, the touch panel 1171 can be overlaid on the display panel 1161. When the touch panel 1171 detects a touch operation on or near it, it transmits it to the processor 120 to determine the type of the touch event. The type of event provides corresponding visual output on the display panel 1161. Although in FIG. 11, the touch panel 1171 and the display panel 1161 are used as two independent components to implement the input and output functions of the UE, but in some embodiments, the touch panel 1171 and the display panel 1161 can be integrated. Realize the input and output functions of the UE, which are not specifically limited here.
接口单元118为外部装置与UE 110连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元118可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到UE 110内的一个或多个元件或者可以用于在UE 110和外部装置之间传输数据。The interface unit 118 is an interface for connecting an external device to the UE 110. For example, the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc. The interface unit 118 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the UE 110 or can be used to communicate between the UE 110 and the external device. Transfer data between.
存储器119可用于存储软件程序以及各种数据。存储器119可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作***、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器119可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。The memory 119 can be used to store software programs and various data. The memory 119 may mainly include a storage program area and a storage data area. The storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones. In addition, the memory 119 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
处理器120是UE的控制中心，利用各种接口和线路连接整个UE的各个部分，通过运行或执行存储在存储器119内的软件程序和/或模块，以及调用存储在存储器119内的数据，执行UE的各种功能和处理数据，从而对UE进行整体监控。处理器120可包括一个或多个处理单元；可选地，处理器120可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作***、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器120中。The processor 120 is the control center of the UE. It uses various interfaces and lines to connect various parts of the entire UE. It executes by running or executing software programs and/or modules stored in the memory 119, and calling data stored in the memory 119. Various functions of the UE and processing data, so as to monitor the UE as a whole. The processor 120 may include one or more processing units; optionally, the processor 120 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, application programs, etc., and the modem The adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 120.
UE 110还可以包括给各个部件供电的电源121(比如电池)，可选地，电源121可以通过电源管理***与处理器120逻辑相连，从而通过电源管理***实现管理充电、放电、以及功耗管理等功能。The UE 110 may also include a power supply 121 (such as a battery) for supplying power to various components. Optionally, the power supply 121 may be logically connected to the processor 120 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.
另外，UE 110包括一些未示出的功能模块，在此不再赘述。In addition, the UE 110 includes some functional modules not shown, which will not be repeated here.
可选地，本公开实施例还提供一种UE，包括如图11所示的处理器120，存储器119，存储在存储器119上并可在所述处理器120上运行的计算机程序，该计算机程序被处理器120执行时实现上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。Optionally, an embodiment of the present disclosure further provides a UE, including a processor 120 as shown in FIG. 11, a memory 119, a computer program stored on the memory 119 and running on the processor 120, the computer program When executed by the processor 120, each process of the foregoing method embodiment is realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
本公开实施例还提供一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，该计算机程序被如图11所示的处理器120执行时实现上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等。The embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor 120 as shown in FIG. 11, each process of the foregoing method embodiment is implemented, And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here. Wherein, the computer-readable storage medium, such as read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc.
图12示出了本公开实施例提供的一种网络设备的硬件示意图。如图12所示，该网络设备130包括：处理器131、收发机132、存储器133、用户接口134和总线接口135。Fig. 12 shows a hardware schematic diagram of a network device provided by an embodiment of the present disclosure. As shown in FIG. 12, the network device 130 includes a processor 131, a transceiver 132, a memory 133, a user interface 134, and a bus interface 135.
收发机132，用于向UE发送配置信息，该配置信息包括以下至少一项：每种随机 接入过程类型对应的SDT传输因子、第一定时器的时长、第二定时器的时长、第一计数器的最大计数门限值、第二计数器的最大计数门限值、推迟指示信息、支持SDT的邻小区的信息。其中，第一定时器用于指示允许UE确定恢复推迟的SDT的时长，第二定时器用于指示允许UE确定恢复取消的SDT的时长，第一计数器用于累计UE确定推迟SDT的次数，第二计数器用于累计UE进行小区重选评估的次数，推迟指示信息用于指示允许UE确定推迟SDT的最大时长；支持SDT的邻小区的信息包括以下至少一项：UE所在服务小区的邻小区的标识、UE所在服务小区的邻小区的SDT配置参数信息、UE所在服务小区的邻小区对应的频点优先级。The transceiver 132 is configured to send configuration information to the UE. The configuration information includes at least one of the following: the SDT transmission factor corresponding to each type of random access process, the duration of the first timer, the duration of the second timer, the first The maximum count threshold of the counter, the maximum count threshold of the second counter, postponement indication information, and information about neighboring cells that support SDT. Among them, the first timer is used to indicate the duration of allowing the UE to determine the resumption of the postponed SDT, the second timer is used to indicate the duration of allowing the UE to determine the resumption of the cancelled SDT, the first counter is used to accumulate the number of times the UE determines to postpone the SDT, and the second counter It is used to accumulate the number of UE cell reselection evaluations. The postponement indication information is used to indicate that the UE is allowed to determine the maximum length of time to postpone SDT; the information of neighboring cells that support SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, The SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the frequency priority corresponding to the neighboring cell of the serving cell where the UE is located.
本公开实施例提供一种网络设备，网络设备可以发送配置信息，以向一个服务小区中的多个UE配置是否推迟SDT或取消SDT的判断条件，从而一个服务小区中的多个UE均可以根据该配置信息确定是否推迟SDT或取消SDT，而并非直接选择使用SDT的传输资源进行SDT，因此可以减少一个服务小区中使用SDT的传输资源进行SDT的UE的数量，从而可以提高UE的传输性能。The embodiments of the present disclosure provide a network device, which can send configuration information to configure multiple UEs in a serving cell whether to defer SDT or cancel SDT judgment conditions, so that multiple UEs in a serving cell can all be based on The configuration information determines whether to postpone SDT or cancel SDT, instead of directly choosing to use SDT transmission resources for SDT. Therefore, the number of UEs that use SDT transmission resources for SDT in a serving cell can be reduced, thereby improving UE transmission performance.
其中，处理器131可以负责管理总线架构和通常的处理，处理器131可以用于读取和执行存储器133中的程序以实现处理功能以及对网络设备130的控制。存储器133可以存储处理器131在执行操作时所使用的数据。处理器131和存储器133可以是集成在一起的，也可以是独立设置的。The processor 131 may be responsible for managing the bus architecture and general processing, and the processor 131 may be used to read and execute programs in the memory 133 to implement processing functions and control the network device 130. The memory 133 may store data used by the processor 131 when performing operations. The processor 131 and the memory 133 may be integrated, or may be independently arranged.
本公开实施例中，网络设备130还可以包括：存储在存储器133上并可在处理器131上运行的计算机程序，该计算机程序被处理器131执行时实现本公开实施例提供的方法的步骤。In the embodiment of the present disclosure, the network device 130 may further include: a computer program stored on the memory 133 and running on the processor 131, and when the computer program is executed by the processor 131, the steps of the method provided in the embodiment of the present disclosure are implemented.
在图12中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器131代表的一个或多个处理器和存储器133代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开实施例不再对其进行进一步描述。总线接口135提供接口。收发机132可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的UE，用户接口134还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。In FIG. 12, the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 131 and various circuits of the memory represented by the memory 133 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits. These are all well-known in the art. Therefore, the embodiments of the present disclosure will not further describe them. . The bus interface 135 provides an interface. The transceiver 132 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium. For different UEs, the user interface 134 may also be an interface capable of connecting externally and internally with required equipment. The connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, and a joystick.
本公开实施例还提供一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，该计算机程序被如图12所示的处理器131执行时实现上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如ROM、RAM、磁碟或者光盘等。The embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor 131 as shown in FIG. 12, each process of the foregoing method embodiment is implemented, And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here. Wherein, the computer-readable storage medium, such as ROM, RAM, magnetic disk or optical disk, etc.
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article or device that includes the element.
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方 法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk). ) Includes several instructions to make a terminal device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present disclosure.
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。The embodiments of the present disclosure are described above with reference to the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present disclosure, many forms can be made without departing from the purpose of the present disclosure and the scope of protection of the claims, all of which fall within the protection of the present disclosure.

Claims (26)

  1. 一种小数据传输SDT处理方法，应用于用户设备UE，所述方法包括：A small data transmission SDT processing method, applied to user equipment UE, and the method includes:
    在所述UE触发第一SDT随机接入过程的情况下，根据第一传输随机数，确定是否推迟SDT或取消SDT，所述第一传输随机数为所述UE生成的随机数。In the case that the UE triggers the first SDT random access procedure, it is determined whether to postpone or cancel the SDT according to the first transmission random number, where the first transmission random number is a random number generated by the UE.
  2. 根据权利要求1所述的方法，其中，所述根据第一传输随机数，确定是否推迟SDT或取消SDT，包括：The method according to claim 1, wherein the determining whether to postpone or cancel SDT according to the first transmission random number comprises:
    若所述第一传输随机数满足第一条件，则确定选择使用SDT的传输资源进行SDT；If the first transmission random number satisfies the first condition, it is determined to select the transmission resource of the SDT for SDT;
    若所述第一传输随机数不满足所述第一条件，则确定推迟SDT或取消SDT；If the first transmission random number does not meet the first condition, determining to postpone the SDT or cancel the SDT;
    其中，所述第一条件为：所述第一传输随机数小于第一SDT传输因子，所述第一SDT传输因子用于指示允许所述UE选择使用SDT的传输资源进行SDT的概率；Wherein, the first condition is: the first transmission random number is less than a first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is allowed to select the transmission resource of the SDT for SDT;
    或者，or,
    所述第一条件为：所述第一传输随机数大于或等于第一SDT传输因子，所述第一SDT传输因子用于指示不允许所述UE选择使用SDT的传输资源进行SDT的概率。The first condition is that: the first transmission random number is greater than or equal to a first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the transmission resource of the SDT for SDT.
  3. 根据权利要求2所述的方法，其中，所述根据第一传输随机数，确定是否推迟SDT或取消SDT之前，所述方法还包括：The method according to claim 2, wherein, before determining whether to postpone SDT or cancel SDT according to the first transmission random number, the method further comprises:
    接收网络设备发送的配置信息，所述配置信息包括以下至少一项：每种随机接入过程类型对应的SDT传输因子、第一定时器的时长、第二定时器的时长、第一计数器的最大计数门限值、第二计数器的最大计数门限值、推迟指示信息、支持SDT的邻小区的信息；Receive configuration information sent by a network device, where the configuration information includes at least one of the following: SDT transmission factor corresponding to each type of random access process, the duration of the first timer, the duration of the second timer, and the maximum value of the first counter Counting threshold, maximum counting threshold of the second counter, postponement indication information, information of neighboring cells supporting SDT;
    其中，所述第一定时器用于指示允许所述UE确定恢复推迟的SDT的时长，所述第二定时器用于指示允许所述UE确定恢复取消的SDT的时长，所述第一计数器用于累计所述UE确定推迟SDT的次数，所述第二计数器用于累计所述UE进行小区重选评估的次数，所述推迟指示信息用于指示允许所述UE确定推迟SDT的最大时长；所述支持SDT的邻小区的信息包括以下至少一项：所述UE所在服务小区的邻小区的标识、所述UE所在服务小区的邻小区的SDT配置参数信息、所述UE所在服务小区的邻小区对应的频点优先级。Wherein, the first timer is used to indicate the duration of allowing the UE to determine to resume the postponed SDT, the second timer is used to indicate the duration of allowing the UE to determine to resume the cancelled SDT, and the first counter is used to accumulate The UE determines the number of times that SDT is postponed, the second counter is used to accumulate the number of times the UE performs cell reselection evaluation, and the postponement indication information is used to indicate that the UE is allowed to determine the maximum duration of postponing SDT; the support The information of the neighboring cell of the SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, the SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the information corresponding to the neighboring cell of the serving cell where the UE is located. Frequency point priority.
  4. 根据权利要求3所述的方法，其中，所述SDT配置参数信息包括以下至少一项：所述UE所在服务小区的邻小区是否支持控制面CP-SDT的信息、所述UE所在服务小区的邻小区是否支持用户面UP-SDT的信息、所述UE所在服务小区的邻小区的SDT最大允许传输块大小、所述UE所在服务小区的邻小区的SDT随机接入资源参数。The method according to claim 3, wherein the SDT configuration parameter information includes at least one of the following: whether the neighboring cell of the serving cell where the UE is located supports control plane CP-SDT information, and the neighboring cell of the serving cell where the UE is located Information about whether the cell supports user plane UP-SDT, the maximum allowable SDT transport block size of the neighboring cell of the serving cell where the UE is located, and the SDT random access resource parameters of the neighboring cell of the serving cell where the UE is located.
  5. 根据权利要求3所述的方法，其中，所述方法还包括：The method according to claim 3, wherein the method further comprises:
    若确定推迟SDT，则启动所述第一定时器，和/或，对所述第一计数器进行累加1操作。If it is determined to postpone the SDT, the first timer is started, and/or the first counter is accumulated by one.
  6. 根据权利要求5所述的方法，其中，所述方法还包括：The method according to claim 5, wherein the method further comprises:
    生成时长随机数，所述时长随机数用于指示推迟SDT的时长；Generating a random number of duration, the random number of duration being used to indicate the duration of postponing SDT;
    在推迟SDT所述时长随机数指示的时长之后，生成第二传输随机数，所述第二传输随机数用于确定是否允许所述UE选择使用SDT的传输资源进行SDT；After deferring the duration indicated by the duration random number of the SDT, generate a second transmission random number, where the second transmission random number is used to determine whether the UE is allowed to select the transmission resource of the SDT for SDT;
    若所述第二传输随机数满足所述第一条件，则确定选择使用SDT的传输资源进行SDT，并停止所述第一定时器，和/或，对所述第一计数器进行重置操作；If the second transmission random number satisfies the first condition, determine to select the transmission resource of the SDT for SDT, stop the first timer, and/or perform a reset operation on the first counter;
    若所述第二传输随机数不满足所述第一条件，则确定推迟SDT；If the second transmission random number does not meet the first condition, determine to postpone SDT;
    若满足第二条件，则确定取消SDT，所述第二条件包括以下至少一项：所述第一定时器超时、所述第一计数器的累计次数大于或等于所述第一计数器的最大计数门限值。If the second condition is met, it is determined to cancel the SDT. The second condition includes at least one of the following: the first timer expires, and the cumulative number of the first counter is greater than or equal to the maximum count gate of the first counter Limit.
  7. 根据权利要求3或6所述的方法，其中，所述方法还包括：The method according to claim 3 or 6, wherein the method further comprises:
    若确定取消SDT，则启动所述第二定时器，和/或，对所述第二计数器进行累加1操作。If it is determined to cancel the SDT, the second timer is started, and/or the second counter is accumulated by one.
  8. 根据权利要求7所述的方法，其中，所述方法还包括：The method according to claim 7, wherein the method further comprises:
    根据所述支持SDT的邻小区的信息确定候选小区；Determining a candidate cell according to the information of the neighboring cell supporting SDT;
    对所述候选小区中的小区进行小区重选评估；Perform cell reselection evaluation on cells in the candidate cells;
    若所述候选小区中的至少一个第一小区满足重选条件，则将所述至少一个第一小区中频点优先级最高的第一小区确定为目标小区，并在所述目标小区中触发所述第一SDT随机接入过程，以及停止所述第二定时器，和/或，对所述第二计数器进行重置操作；If at least one first cell among the candidate cells meets the reselection condition, the first cell with the highest frequency point priority in the at least one first cell is determined as the target cell, and the target cell is triggered. The first SDT random access procedure, and stopping the second timer, and/or resetting the second counter;
    若满足第三条件，则回退生成无线资源控制RRC消息，以指示所述UE触发随机接入过程；If the third condition is met, back off to generate a radio resource control RRC message to instruct the UE to trigger a random access procedure;
    其中，所述重选条件包括以下至少一项：小区满足重选准则和所述SDT配置参数信息满足所述第一SDT随机接入过程对应的触发条件；所述第三条件包括以下至少一项：所述第二定时器超时、所述第二计数器的累计次数大于或等于所述第二计数器的最大计数门限值。Wherein, the reselection condition includes at least one of the following: the cell meets the reselection criterion and the SDT configuration parameter information meets the trigger condition corresponding to the first SDT random access procedure; the third condition includes at least one of the following : The second timer expires, and the cumulative number of times of the second counter is greater than or equal to the maximum count threshold of the second counter.
  9. 根据权利要求8所述的方法，其中，所述对所述候选小区中的小区进行小区重选评估，包括：The method according to claim 8, wherein the performing cell reselection evaluation on the cell among the candidate cells comprises:
    按照所述频点优先级，从高优先级频点开始，依次对所述候选小区中的小区进行小区重选评估。According to the frequency point priority, starting from the high priority frequency point, cell reselection evaluation is performed on the cells in the candidate cells in sequence.
  10. 一种小数据传输SDT处理方法，应用于网络设备，所述方法包括：A small data transmission SDT processing method, applied to a network device, the method includes:
    向用户设备UE发送配置信息，所述配置信息包括以下至少一项：每种随机接入过程类型对应的SDT传输因子、第一定时器的时长、第二定时器的时长、第一计数器的最大计数门限值、第二计数器的最大计数门限值、推迟指示信息、支持SDT的邻小区的信息；Send configuration information to the user equipment UE, where the configuration information includes at least one of the following: the SDT transmission factor corresponding to each type of random access procedure, the duration of the first timer, the duration of the second timer, and the maximum value of the first counter Counting threshold, maximum counting threshold of the second counter, postponement indication information, information of neighboring cells supporting SDT;
    其中，所述第一定时器用于指示允许所述UE确定恢复推迟的SDT的时长，所述第二定时器用于指示允许所述UE确定恢复取消的SDT的时长，所述第一计数器用于累计所述UE确定推迟SDT的次数，所述第二计数器用于累计所述UE进行小区重选评估的次数，所述推迟指示信息用于指示允许所述UE确定推迟SDT的最大时长；所述支持SDT的邻小区的信息包括以下至少一项：所述UE所在服务小区的邻小区的标识、所述UE所在服务小区的邻小区的SDT配置参数信息、所述UE所在服务小区的邻小区对应的频点优先级。Wherein, the first timer is used to indicate the duration of allowing the UE to determine to resume the postponed SDT, the second timer is used to indicate the duration of allowing the UE to determine to resume the cancelled SDT, and the first counter is used to accumulate The UE determines the number of times that SDT is postponed, the second counter is used to accumulate the number of times the UE performs cell reselection evaluation, and the postponement indication information is used to indicate that the UE is allowed to determine the maximum duration of postponing SDT; the support The information of the neighboring cell of the SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, the SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the information corresponding to the neighboring cell of the serving cell where the UE is located. Frequency point priority.
  11. 根据权利要求10所述的方法，其中，所述SDT配置参数信息包括以下至少一项：所述UE所在服务小区的邻小区是否支持控制面CP-SDT的信息、所述UE所在服务小区的邻小区是否支持用户面UP-SDT的信息、所述UE所在服务小区的邻小区 的SDT最大允许传输块大小、随机接入资源参数。The method according to claim 10, wherein the SDT configuration parameter information includes at least one of the following: whether the neighboring cell of the serving cell where the UE is located supports control plane CP-SDT information, and the neighboring cell of the serving cell where the UE is located Information about whether the cell supports the user plane UP-SDT, the maximum allowable SDT transmission block size of the neighboring cell of the serving cell where the UE is located, and random access resource parameters.
  12. 一种用户设备UE，所述UE包括：确定模块；A user equipment UE, the UE includes: a determining module;
    所述确定模块，用于在所述UE触发第一小数据传输SDT随机接入过程的情况下，根据第一传输随机数，确定是否推迟SDT或取消SDT，所述第一传输随机数为所述UE生成的随机数。The determining module is configured to determine whether to postpone SDT or cancel SDT according to the first transmission random number when the UE triggers the first small data transmission SDT random access process, and the first transmission random number is The random number generated by the UE.
  13. 根据权利要求12所述的UE，其中，所述确定模块，具体用于若所述第一传输随机数满足第一条件，则确定选择使用SDT的传输资源进行SDT；或者，若所述第一传输随机数不满足所述第一条件，则确定推迟SDT或取消SDT；The UE according to claim 12, wherein the determining module is specifically configured to determine that if the first transmission random number satisfies a first condition, determine to use SDT transmission resources for SDT; or, if the first transmission resource If the transmission random number does not meet the first condition, it is determined to postpone the SDT or cancel the SDT;
    其中，所述第一条件为：所述第一传输随机数小于第一SDT传输因子，所述第一SDT传输因子用于指示允许所述UE选择使用SDT的传输资源进行SDT的概率；Wherein, the first condition is: the first transmission random number is less than a first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is allowed to select the transmission resource of the SDT for SDT;
    或者，or,
    所述第一条件为：所述第一传输随机数大于或等于第一SDT传输因子，所述第一SDT传输因子用于指示不允许所述UE选择使用SDT的传输资源进行SDT的概率。The first condition is that: the first transmission random number is greater than or equal to a first SDT transmission factor, and the first SDT transmission factor is used to indicate the probability that the UE is not allowed to select the transmission resource of the SDT for SDT.
  14. 根据权利要求13所述的UE，其中，所述UE还包括：接收模块；The UE according to claim 13, wherein the UE further comprises: a receiving module;
    所述接收模块，用于在所述确定模块根据所述第一传输随机数，确定是否推迟SDT或取消SDT之前，接收网络设备发送的配置信息，所述配置信息包括以下至少一项：每种随机接入过程类型对应的SDT传输因子、第一定时器的时长、第二定时器的时长、第一计数器的最大计数门限值、第二计数器的最大计数门限值、推迟指示信息、支持SDT的邻小区的信息；The receiving module is configured to receive configuration information sent by a network device before the determining module determines whether to postpone or cancel SDT according to the first transmission random number, and the configuration information includes at least one of the following: The SDT transmission factor corresponding to the random access process type, the duration of the first timer, the duration of the second timer, the maximum count threshold of the first counter, the maximum count threshold of the second counter, postponement indication information, support Information of neighboring cells of SDT;
    其中，所述第一定时器用于指示允许所述UE确定恢复推迟的SDT的时长，所述第二定时器用于指示允许所述UE确定恢复取消的SDT的时长，所述第一计数器用于累计所述UE确定推迟SDT的次数，所述第二计数器用于累计所述UE进行小区重选评估的次数，所述推迟指示信息用于指示允许所述UE确定推迟SDT的最大时长；所述支持SDT的邻小区的信息包括以下至少一项：所述UE所在服务小区的邻小区的标识、所述UE所在服务小区的邻小区的SDT配置参数信息、所述UE所在服务小区的邻小区对应的频点优先级。Wherein, the first timer is used to indicate the duration of allowing the UE to determine to resume the postponed SDT, the second timer is used to indicate the duration of allowing the UE to determine to resume the cancelled SDT, and the first counter is used to accumulate The UE determines the number of times that SDT is postponed, the second counter is used to accumulate the number of cell reselection evaluations performed by the UE, and the postponement indication information is used to indicate that the UE is allowed to determine the maximum duration of postponing SDT; the support The information of the neighboring cell of the SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, the SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the information corresponding to the neighboring cell of the serving cell where the UE is located. Frequency point priority.
  15. 根据权利要求14所述的UE，其中，所述SDT配置参数信息包括以下至少一项：所述UE所在服务小区的邻小区是否支持控制面CP-SDT的信息、所述UE所在服务小区的邻小区是否支持用户面UP-SDT的信息、所述UE所在服务小区的邻小区的SDT最大允许传输块大小、所述UE所在服务小区的邻小区的SDT随机接入资源参数。The UE according to claim 14, wherein the SDT configuration parameter information includes at least one of the following: whether the neighboring cell of the serving cell of the UE supports control plane CP-SDT information, and the neighboring cell of the serving cell of the UE Information about whether the cell supports user plane UP-SDT, the maximum allowable SDT transport block size of the neighboring cell of the serving cell where the UE is located, and the SDT random access resource parameters of the neighboring cell of the serving cell where the UE is located.
  16. 根据权利要求14所述的UE，其中，所述UE还包括：处理模块；The UE according to claim 14, wherein the UE further comprises: a processing module;
    所述处理模块，用于若所述确定模块确定推迟SDT，则启动所述第一定时器，和/或，对所述第一计数器进行累加1操作。The processing module is configured to, if the determining module determines to postpone the SDT, start the first timer, and/or perform an operation of accumulating 1 on the first counter.
  17. 根据权利要求16所述的UE，其中，所述UE还包括：生成模块和停止模块；The UE according to claim 16, wherein the UE further comprises: a generating module and a stopping module;
    所述生成模块，用于生成时长随机数，所述时长随机数用于指示推迟SDT的时长；并在推迟SDT所述时长随机数指示的时长之后，生成第二传输随机数，所述第二传输随机数用于确定是否允许所述UE选择使用SDT的传输资源进行SDT；The generating module is configured to generate a duration random number, the duration random number is used to indicate the duration of postponing SDT; and after the duration indicated by the duration random number of the SDT is postponed, a second transmission random number is generated, the second The transmission random number is used to determine whether to allow the UE to choose to use the transmission resources of the SDT for SDT;
    所述确定模块，还用于若所述生成模块生成的所述第二传输随机数满足所述第一条件，则确定选择使用SDT的传输资源进行SDT；The determining module is further configured to determine that if the second transmission random number generated by the generating module satisfies the first condition, determine to select the transmission resource of the SDT for SDT;
    所述停止模块，用于停止所述第一定时器，和/或，对所述第一计数器进行重置操作；The stop module is configured to stop the first timer, and/or perform a reset operation on the first counter;
    所述确定模块，还用于若所述生成模块生成的所述第二传输随机数不满足所述第一条件，则确定推迟SDT；若满足第二条件，则确定取消SDT，所述第二条件包括以下至少一项：所述第一定时器超时、所述第一计数器的累计次数大于或等于所述第一计数器的最大计数门限值。The determining module is further configured to determine to postpone SDT if the second transmission random number generated by the generating module does not meet the first condition; if the second condition is met, determine to cancel the SDT, and the second The condition includes at least one of the following: the first timer expires, and the accumulated number of the first counter is greater than or equal to the maximum count threshold of the first counter.
  18. 根据权利要求14或17所述的UE，其中，所述UE还包括：处理模块；The UE according to claim 14 or 17, wherein the UE further comprises: a processing module;
    所述处理模块，用于若所述确定模块确定取消SDT，则启动所述第二定时器，和/或，对所述第二计数器进行累加1操作。The processing module is configured to, if the determining module determines to cancel the SDT, start the second timer, and/or perform an operation of accumulating 1 on the second counter.
  19. 根据权利要求18所述的UE，其中，所述确定模块，还用于根据所述接收模块接收的所述支持SDT的邻小区的信息确定候选小区；The UE according to claim 18, wherein the determining module is further configured to determine a candidate cell according to the information of the neighboring cell supporting SDT received by the receiving module;
    所述UE还包括：评估模块、停止模块和回退模块；The UE also includes: an evaluation module, a stop module, and a fallback module;
    所述评估模块，用于对所述确定模块确定的所述候选小区中的小区进行小区重选评估；The evaluation module is configured to perform cell reselection evaluation on the cell among the candidate cells determined by the determination module;
    所述确定模块，还用于若所述候选小区中的至少一个第一小区满足重选条件，则将所述至少一个第一小区中频点优先级最高的第一小区确定为目标小区；The determining module is further configured to determine the first cell with the highest frequency point priority among the at least one first cell as the target cell if at least one first cell among the candidate cells meets the reselection condition;
    所述处理模块，还用于在所述确定模块确定的所述目标小区中触发所述第一SDT随机接入过程；The processing module is further configured to trigger the first SDT random access procedure in the target cell determined by the determining module;
    所述停止模块，用于停止所述第二定时器，和/或，对所述第二计数器进行重置操作；The stop module is used to stop the second timer and/or reset the second counter;
    所述回退模块，用于若满足第三条件，则回退生成无线资源控制RRC消息，以指示所述UE触发随机接入过程；The fallback module is configured to, if the third condition is met, fallback to generate a radio resource control RRC message to instruct the UE to trigger a random access procedure;
    其中，所述重选条件包括以下至少一项：小区满足重选准则和所述SDT配置参数信息满足所述第一SDT随机接入过程对应的触发条件；所述第三条件包括以下至少一项：所述第二定时器超时、所述第二计数器的累计次数大于或等于所述第二计数器的最大计数门限值。Wherein, the reselection condition includes at least one of the following: the cell meets the reselection criterion and the SDT configuration parameter information meets the trigger condition corresponding to the first SDT random access process; the third condition includes at least one of the following : The second timer expires, and the cumulative number of times of the second counter is greater than or equal to the maximum count threshold of the second counter.
  20. 根据权利要求19所述的UE，其中，所述评估模块，具体用于按照所述接收模块接收的所述频点优先级，从高优先级频点开始，依次对所述候选小区中的小区进行小区重选评估。The UE according to claim 19, wherein the evaluation module is specifically configured to, according to the frequency point priority received by the receiving module, start from the high priority frequency point, and sequentially analyze the cells in the candidate cells. Perform cell reselection evaluation.
  21. 一种网络设备，所述网络设备包括：发送模块；A network device, the network device includes: a sending module;
    所述发送模块，用于向用户设备UE发送配置信息，所述配置信息包括以下至少一项：每种随机接入过程类型对应的小数据传输SDT传输因子、第一定时器的时长、第二定时器的时长、第一计数器的最大计数门限值、第二计数器的最大计数门限值、推迟指示信息、支持SDT的邻小区的信息；The sending module is configured to send configuration information to the user equipment UE. The configuration information includes at least one of the following: the small data transmission SDT transmission factor corresponding to each type of random access process, the duration of the first timer, and the second The duration of the timer, the maximum count threshold of the first counter, the maximum count threshold of the second counter, postponement indication information, and information about neighboring cells that support SDT;
    其中，所述第一定时器用于指示允许所述UE确定恢复推迟的SDT的时长，所述第二定时器用于指示允许所述UE确定恢复取消的SDT的时长，所述第一计数器用于累计所述UE确定推迟SDT的次数，所述第二计数器用于累计所述UE进行小区重选评估的次数，所述推迟指示信息用于指示允许所述UE确定推迟SDT的最大时长；所述支持SDT的邻小区的信息包括以下至少一项：所述UE所在服务小区的邻小区的标 识、所述UE所在服务小区的邻小区的SDT配置参数信息、所述UE所在服务小区的邻小区对应的频点优先级。Wherein, the first timer is used to indicate the duration of allowing the UE to determine to resume the postponed SDT, the second timer is used to indicate the duration of allowing the UE to determine to resume the cancelled SDT, and the first counter is used to accumulate The UE determines the number of times that SDT is postponed, the second counter is used to accumulate the number of times the UE performs cell reselection evaluation, and the postponement indication information is used to indicate that the UE is allowed to determine the maximum duration of postponing SDT; the support The information of the neighboring cell of the SDT includes at least one of the following: the identity of the neighboring cell of the serving cell where the UE is located, the SDT configuration parameter information of the neighboring cell of the serving cell where the UE is located, and the information corresponding to the neighboring cell of the serving cell where the UE is located. Frequency point priority.
  22. 根据权利要求21所述的网络设备，其中，所述SDT配置参数信息包括以下至少一项：所述UE所在服务小区的邻小区是否支持控制面CP-SDT的信息、所述UE所在服务小区的邻小区是否支持用户面UP-SDT的信息、所述UE所在服务小区的邻小区的SDT最大允许传输块大小、随机接入资源参数。The network device according to claim 21, wherein the SDT configuration parameter information includes at least one of the following: whether a neighboring cell of the serving cell where the UE is located supports control plane CP-SDT information, Information about whether the neighboring cell supports the user plane UP-SDT, the maximum allowable SDT transmission block size of the neighboring cell of the serving cell where the UE is located, and random access resource parameters.
  23. 一种用户设备UE，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至9中任一项所述的小数据传输SDT处理方法的步骤。A user equipment UE, comprising a processor, a memory, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor is implemented as in claims 1 to 9 Steps of any SDT processing method for small data transmission.
  24. 一种网络设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求10或11所述的小数据传输SDT处理方法的步骤。A network device, comprising a processor, a memory, and a computer program stored on the memory and capable of running on the processor, the computer program being executed by the processor to achieve as described in claim 10 or 11 The steps of the small data transmission SDT processing method.
  25. 一种通信***，所述通信***包括如权利要求12至20中任一项所述的用户设备UE，以及如权利要求21或22所述的网络设备；或者，A communication system, the communication system comprising the user equipment UE according to any one of claims 12 to 20, and the network equipment according to claim 21 or 22; or,
    所述通信***包括如权利要求23所述的UE以及如权利要求24所述的网络设备。The communication system includes the UE according to claim 23 and the network device according to claim 24.
  26. 一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如权利要求1至11中任一项所述的小数据传输SDT处理方法的步骤。A computer-readable storage medium storing a computer program on the computer-readable storage medium, and when the computer program is executed by a processor, the method for processing the small data transmission SDT according to any one of claims 1 to 11 is implemented step.
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