WO2021027821A1 - Procédé de traitement de sdt, dispositif et système - Google Patents

Procédé de traitement de sdt, dispositif et système 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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English (en)
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/fr

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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

Selon des modes de réalisation, la présente invention concerne un procédé de traitement de SDT, un dispositif et un système. Ledit procédé consiste : dans des cas où un UE déclenche un premier processus d'accès aléatoire SDT, à déterminer, d'après un premier nombre aléatoire de transmission, s'il faut différer une SDT ou l'annuler, le premier nombre aléatoire de transmission étant un nombre aléatoire généré par l'UE. Les modes de réalisation de la présente invention sont appliqués dans le processus durant lequel, d'après le nombre aléatoire généré, l'UE détermine s'il faut différer la SDT ou l'annuler.
PCT/CN2020/108505 2019-08-13 2020-08-11 Procédé de traitement de sdt, dispositif et système WO2021027821A1 (fr)

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Cited By (6)

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