WO2021253411A1 - 数据传输方法、设备及存储介质 - Google Patents

数据传输方法、设备及存储介质 Download PDF

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Publication number
WO2021253411A1
WO2021253411A1 PCT/CN2020/097128 CN2020097128W WO2021253411A1 WO 2021253411 A1 WO2021253411 A1 WO 2021253411A1 CN 2020097128 W CN2020097128 W CN 2020097128W WO 2021253411 A1 WO2021253411 A1 WO 2021253411A1
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Prior art keywords
random access
uplink data
preset
prohibition
signal strength
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PCT/CN2020/097128
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English (en)
French (fr)
Inventor
夏欣
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深圳传音控股股份有限公司
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Publication date
Application filed by 深圳传音控股股份有限公司 filed Critical 深圳传音控股股份有限公司
Priority to PCT/CN2020/097128 priority Critical patent/WO2021253411A1/zh
Priority to CN202080101936.7A priority patent/CN115702594A/zh
Publication of WO2021253411A1 publication Critical patent/WO2021253411A1/zh

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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

Definitions

  • This application relates to the field of communication technology, and in particular to a data transmission method, device and storage medium.
  • 5G fifth-generation mobile communication technology
  • UE User Equipment, terminal equipment
  • Access process is still required in 5G technology.
  • 5G technology introduces a 2-step-random access process, which simplifies and optimizes the traditional 4-step-random access process, and improves the performance of terminal equipment accessing the network and sending data. The delay is reduced to meet the diverse business needs of 5G.
  • terminal equipment uses a 2-step random access process to access the network. Due to the influence of network signal quality, network load, UE distribution, traffic volume and other factors, terminal equipment frequently fails to access and reduces the overall performance of the network. .
  • the embodiments of the present application provide a data transmission method, device, and storage medium to solve the problem that the terminal device in the prior art uses a 2-step random access process to access the network, due to the signal quality, network load, UE distribution, and traffic volume of the network.
  • an embodiment of the present application provides a data transmission method, including:
  • the uplink data is sent using a 2-step random access procedure.
  • it also includes:
  • the uplink data is sent using a 4-step random access procedure.
  • the uplink data meets the conditions and includes at least one of the following:
  • the QCI (QoS Classification Identifier, QoS Classification Identifier) of the service corresponding to the uplink data belongs to a preset type set, and the preset type set includes at least one QCI.
  • the method further includes: receiving the preset type set.
  • the preset type set is included in an RRC (Radio Resource Control, radio resource control) message or a system broadcast message.
  • RRC Radio Resource Control, radio resource control
  • it also includes:
  • the reference signal strength is RSRP (Reference Signal Receiving Power) or RSRQ (Reference Signal Receiving Quality, Reference Signal Receiving Quality).
  • it also includes:
  • the prohibition indication information includes at least one of the following information: cell broadcast information, physical layer signaling, medium access control layer control element, or RRC message.
  • the prohibition indication information further includes a preset prohibition time period
  • the method further includes:
  • the 4-step random access procedure is adopted to send the uplink data.
  • an embodiment of the present application provides a data transmission method, including:
  • the uplink data sent by the terminal device using the 2-step-random access process is received, and the uplink data is sent by the terminal device when the reference signal strength is greater than or equal to a preset threshold and the uplink data meets the conditions.
  • it also includes:
  • it also includes:
  • the terminal device Receiving uplink data sent by the terminal device using a 4-step-random access process, where the uplink data is when the reference signal strength of the terminal device is less than the preset threshold, or the uplink data does not meet the conditions, or Sent when a prohibition instruction message is received.
  • the prohibition indication information further includes a preset prohibition time period
  • the method further includes:
  • the uplink data meets the conditions and includes at least one of the following:
  • the QCI of the service corresponding to the uplink data belongs to a preset type set, and the preset type set includes at least one QCI.
  • it also includes:
  • the preset type set is included in an RRC message or a system broadcast message.
  • it also includes:
  • the prohibition indication information includes at least one of the following information: cell broadcast information, physical layer signaling, medium access control layer control element, or RRC message.
  • the reference signal strength is RSRP or RSRQ.
  • an embodiment of the present application provides a terminal device, including:
  • the memory stores computer execution instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the data transmission method according to any one of the foregoing first aspects.
  • an embodiment of the present application provides a network device, including:
  • the memory stores computer execution instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the data transmission method according to any one of the above-mentioned second aspects.
  • a computer-readable storage medium has computer-executable instructions stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, they are used to implement any of the above-mentioned first or second aspects.
  • a data transmission method, device, and storage medium provided in the embodiments of the present application are used for terminal equipment UE that is configured with a 2-step-random access process and a 4-step-random access process at the same time.
  • the UE Based on the reference signal strength and whether the uplink data to be transmitted meets the conditions, select whether to use the 2-step random access process.
  • the reference signal strength is greater than or equal to the preset threshold and the uplink data to be sent meets the conditions, that is, When the current signal strength is strong enough and the uplink random access data service meets the conditions, select the 2-step-random access method for access, which not only avoids frequent access failures when the signal is weak, but also allows flexible settings
  • the conditions that must be met by the uplink data transmitted using the 2-step random access process can improve the success rate of the uplink random access of the terminal equipment, reduce the signaling burden of the network, and thereby improve the overall performance of the network.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of a 4-step random access process provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of a 2-step random access process provided by an embodiment of this application.
  • FIG. 5 is a flowchart of a data transmission method provided in Embodiment 2 of this application.
  • FIG. 6 is a schematic structural diagram of a terminal device provided in Embodiment 3 of this application.
  • FIG. 7 is a schematic structural diagram of a terminal device provided in Embodiment 4 of this application.
  • FIG. 8 is a schematic structural diagram of a network device provided in Embodiment 5 of this application.
  • FIG. 9 is a schematic structural diagram of a network device provided in Embodiment 6 of this application.
  • FIG. 10 is a schematic structural diagram of a terminal device provided in Embodiment 7 of this application.
  • FIG. 11 is a schematic structural diagram of a network device provided in Embodiment 8 of this application.
  • the communication system includes: a network device and a plurality of terminal devices. It is assumed that the plurality of terminal devices include terminal device 1, terminal device 2, terminal device 3, and terminal device 4 in the figure.
  • the communication system shown in Figure 1 can be applied to different network standards, for example, it can be applied to GSM (Global System of Mobile communication, global mobile communications), CDMA (Code Division Multiple Access, code division multiple access) , WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), LTE (Long Term Evolution, Long Term Evolution) systems and future Network standards such as 5G.
  • GSM Global System of Mobile communication, global mobile communications
  • CDMA Code Division Multiple Access, code division multiple access
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access
  • LTE Long Term Evolution, Long Term Evolution
  • future Network standards such as 5G.
  • the foregoing communication system may be a system in a scenario of URLLC (Ultra-Reliable and Low Latency Communications) transmission in a 5G communication
  • the aforementioned network equipment can be a BTS (Base Transceiver Station, base station) and/or a base station controller in GSM or CDMA, or a NB (NodeB, base station) and/or RNC (Radio Network) in WCDMA. Controller, radio network controller), can also be an eNB (Evolutional Node B, base station) or eNodeB) in LTE, or a relay station or access point, or a base station (gNB) in the future 5G network. Not limited.
  • the aforementioned terminal device may be a wireless terminal or a wired terminal.
  • a wireless terminal may be a device that provides voice and/or other service data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • a wireless terminal can communicate with one or more core network devices via a RAN (Radio Access Network).
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) or a mobile phone with a mobile terminal.
  • Computers for example, can be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • the wireless terminal may also be a PCS (Personal Communication Service) phone, a cordless phone, a SIP (Session Initiation Protocol, Session Initiation Protocol) phone, a WLL (Wireless Local Loop, wireless local loop) station, a PDA ( Personal Digital Assistant, personal digital assistant) and other equipment.
  • Wireless terminal can also be called system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), mobile station (Mobile Station), mobile station (Mobile), remote station (Remote Station), remote terminal (Remote Terminal), connection
  • the access terminal Access Terminal
  • user terminal User Terminal
  • user agent User Agent
  • user equipment User Equipment
  • the aforementioned terminal device may also be a smart watch, a tablet computer, or other devices.
  • the "random access message” can refer to the MSGA in the 2-step random access process
  • the "random access feedback message” can refer to 2
  • the "first message” can refer to MSG1 in the 4-step random access process
  • the "second message” can refer to MSG2 in the 4-step random access process
  • the "third message” can refer to MSG2 in the 4-step random access process.
  • the “message” may refer to MSG3 in the 4-step random access process
  • the "fourth message” may refer to MSG4 in the 4-step random access process.
  • Fig. 2 is a schematic diagram of a 4-step random access process provided by an embodiment of the application. As shown in Figure 2, the 4-step-random access process can include the following steps:
  • Step S11 The UE sends a first message MSG1 to the network device, where MSG1 includes a random access preamble.
  • MSG1 may include a random access preamble, and may also include other information, which will not be repeated here in this embodiment.
  • the UE sends MSG1 to the network device through PRACH (Physical Random Access Channel).
  • PRACH Physical Random Access Channel
  • Step S12 The network device sends a second message MSG2 to the UE.
  • MSG2 can be a random access response message, but it is not limited to this message.
  • MSG2 may also include one or more of fallback instructions, uplink authorization information, and random access network temporary identifiers. Of course, MSG2 may also include other information, which will not be repeated here in this embodiment.
  • Step S13 The UE sends a third message MSG3 to the network device.
  • MSG3 can be an RRC connection request message, but it is not limited to this message.
  • the MSG3 may include the system architecture evolution temporary mobile station identifier, etc., and may also include other information, which will not be repeated here in this embodiment.
  • Step S14 The network measurement equipment sends a fourth message MSG4 to the UE.
  • MSG4 can establish a message for the RRC connection, but it is not limited to this message.
  • MSG4 may include contention resolution (Contention Resolution), etc., and MSG4 may also include other information, which is not repeated here in this embodiment.
  • Fig. 3 is a schematic diagram of a 2-step random access process provided by an embodiment of the application. As shown in Figure 3, the 2-step-random access process can include the following steps:
  • Step S21 The UE sends a random access message MSGA to the network device.
  • the MSGA includes a random access preamble and a payload (Payload) sent on a PUSCH (Physical Uplink Shared Channel).
  • Payload Physical Uplink Shared Channel
  • the UE sends a random access preamble on the PRACH, and sends a payload (Payload) to the network device through the PUSCH.
  • the MSGA may also carry other information such as the UE identifier, which is not repeated here in this embodiment.
  • Step S22 The network device sends a feedback message MSGB to the UE, and the MSGB includes a confirmation indication.
  • the MSGB may include a confirmation instruction.
  • the MSGB may also include other information such as the UE identifier, which will not be repeated in this embodiment.
  • the 2-step-random access process simplifies and optimizes the traditional 4-step-random access process, improves the performance of terminal devices to access the network and sends data, reduces the delay, and meets 5G diversification. Business needs.
  • the terminal equipment UE is configured with 2-step random access and 4-step random access at the same time.
  • the UE can choose to use any one of the random access procedures to access.
  • Step 2- The success of the random access process depends on many factors such as network signal quality, network load, UE distribution, traffic volume, etc. Although it has brought certain performance and delay improvements, improper configuration and use, on the contrary It will reduce the overall performance of the network, and frequent access failures will greatly reduce the user experience.
  • the data transmission method provided in this application aims to solve the above technical problems.
  • FIG. 4 is a flowchart of a data transmission method provided in Embodiment 1 of this application. As shown in Figure 4, the specific steps of the method are as follows:
  • Step S201 The UE determines the strength of the reference signal.
  • the UE may be in a TA (Timing Advance, uplink timing advance) out-of-synchronization situation. Therefore, in order to ensure the quality of base station reception and signal demodulation, the UE cannot be too far away from the base station.
  • TA Timing Advance, uplink timing advance
  • the UE may first determine the current reference signal strength, and based on the current reference signal strength, determine whether to choose to use the 2-step-random access process to access the network.
  • the reference signal strength may be RSRP or RSRQ.
  • the UE can be implemented by using any method for determining the strength of the reference signal in the prior art, which will not be repeated in this embodiment.
  • Step S202 If the reference signal strength is greater than or equal to the preset threshold, and the uplink data to be sent meets the conditions, the UE uses a 2-step-random access process to send the uplink data.
  • the preset threshold value may be the minimum signal strength configured by the network device to allow the UE to use the 2-step-random access method for access.
  • the preset threshold value can be set according to actual application scenarios, and this embodiment does not specifically limit the preset threshold value here.
  • the UE determines that the current reference signal strength is less than the preset threshold, it means that the current signal is weak and the UE cannot use the 2-step-random access process, but should use the 4-step-random access process to send uplink data, that is A 4-step-random access process is used for access.
  • condition that the uplink data to be sent meets may be a condition configured by the network device to allow the UE to use the 2-step-random access process to access the uplink data to be transmitted.
  • this condition you can configure which types of service data the UE can use 2-step-random access process for access, and when transmitting other types of service data, it must use 4-step-random access process. Access is performed during the access process.
  • the conditions that the uplink data to be sent meet can be flexibly configured according to actual application scenarios, which is not specifically limited in this embodiment.
  • the 2-step random access procedure is used to send the uplink data.
  • a type set can be preset.
  • the UE is not allowed to use the 2-step-random access process for access.
  • the UE can use the 4-step-random access procedure for access.
  • the QCIs of the services corresponding to the uplink data contained in the preset type set and the number of QCIs contained can be set according to actual application scenarios, which is not specifically limited in this embodiment.
  • the preset type set can be set through a network device.
  • the network device may send the preset type set to the UE, and the UE may receive the preset type set.
  • the network device may include the preset type set in an RRC message and send it to the UE, or the network device may include the preset type set in a system broadcast message and send it to the UE, so that the UE can receive the preset type set .
  • Step S203 The network device receives the uplink data sent by the UE using the 2-step-random access procedure.
  • the uplink data is sent by the UE when the reference signal strength is greater than or equal to the preset threshold and the uplink data meets the conditions.
  • Step S204 If the reference signal strength is less than the preset threshold, or the uplink data does not meet the conditions, the UE uses a 4-step-random access process to send the uplink data.
  • the UE determines that the current reference signal strength is less than the preset threshold, it means that the current signal is weak, and the UE cannot use the 2-step-random access process, but should use the 4-step-random access process to send Uplink data is accessed using a 4-step-random access process.
  • the UE determines that the uplink data to be sent does not meet the conditions, it means that the current uplink data corresponding to the business is not suitable for access using the 2-step-random access process. Therefore, the UE chooses to use the 4-step-random access process to send Uplink data is accessed using a 4-step-random access process.
  • Step S205 The network device receives the uplink data sent by the UE using the 4-step-random access procedure.
  • the uplink data is sent by the terminal equipment when the reference signal strength is less than a preset threshold or the uplink data does not meet the conditions.
  • the UE selects whether to use the 2-step- Random access process. If the reference signal strength is greater than or equal to the preset threshold, and the uplink data to be sent meets the conditions, that is, when the current signal strength is strong enough and the uplink random access data service meets the conditions, the 2-step random access is selected.
  • the 4-step-random access process for access, which can avoid frequent access when the signal is weak In the case of failure, it can also flexibly set the conditions that need to be met by the uplink data transmitted by the 2-step-random access process, which can improve the success rate of the uplink random access of the terminal equipment, reduce the signaling burden on the network, and thus improve the network The overall performance.
  • FIG. 5 is a flowchart of a data transmission method provided in Embodiment 2 of this application.
  • the network device can send prohibition indication information to the UE according to the current network congestion status.
  • the 2-step randomization is not used. Access process, and use the 4-step random access process for access.
  • Step S301 The network device sends prohibition indication information to the UE.
  • the network device can send prohibition indication information to the UE when it detects that the network is congested or not suitable for 2-step-random access.
  • the prohibition indication information is used to instruct the UE not to use 2-step-random access temporarily. Access process.
  • the detection method for network equipment to detect network congestion and other situations that are not suitable for 2-step-random access can adopt SON/MDT technology to automatically collect the current state and feedback of the network, or can adopt any of the existing technologies.
  • the method is implemented, and this embodiment will not be repeated here.
  • the prohibition indication information may be included in at least one of the following information: cell broadcast information, physical layer signaling, medium access control layer control element, or RRC message.
  • the network device may generate the prohibition indication information to the UE through a cell broadcast message, or may also dynamically send the prohibition indication information to the UE in the form of physical layer signaling, media access control layer control element, or RRC message.
  • the preferred method in this embodiment is to dynamically send the prohibition indication information to the UE through a broadcast message. Improve the access performance of the UE and reduce unnecessary burdens on the system.
  • the prohibition indication information can use 1-bit information to dynamically indicate whether the UE can adopt the 2-step-random access process for access. For example, if the prohibition indication information is 1, it means that the UE is temporarily prohibited from using the 2-step-random access procedure for access; if the prohibition indication information is 0, it means that the UE is allowed to temporarily take the 2-step-random access procedure for access. enter.
  • the specific implementation of the prohibition indication information is not specifically limited.
  • Step S302 If the UE receives the prohibition indication information, the UE chooses to use the 4-step-random access procedure to send uplink data.
  • the prohibition indication information may also include a preset prohibition time period.
  • the preset prohibition time period refers to a period during which the UE is prohibited from using the 2-step random access procedure for access. During this period, the UE is prohibited from using 2 Step-random access process for access.
  • the prohibition instruction information can specify a preset prohibition time period within a certain period of time after receiving the prohibition instruction information, or it can specify a fixed preset prohibition time period every day, etc., this embodiment does not make specific details here. limited.
  • the network device may carry the preset prohibition time period in the prohibition indication information and send it to the UE.
  • the network device may pre-arrange the preset prohibition time period with the UE; or, the network device may also send a separate notification to the UE.
  • the preset prohibition time period corresponding to the prohibition indication information sent by the UE; this embodiment is not specifically limited here.
  • this step can be implemented in the following way:
  • the UE accesses the network, if it has previously received barring indication information and within the preset barring time period, it cannot use the 2-step-random access process for access, and A 4-step-random access process is used for access.
  • this embodiment can also be combined with the foregoing Embodiment 1 or Embodiment 2 to produce a variety of possible implementation manners.
  • the UE chooses to use the 2-step-random access process for access; when the reference signal strength is less than the preset threshold, or the UE receives When it reaches the prohibition indication information, choose to use the 4-step-random access process for access.
  • the first condition the reference signal strength is less than the preset threshold
  • the second condition the uplink data to be sent does not meet the conditions
  • the third condition the prohibition indication information is received.
  • the UE When the UE does not meet these three conditions at the same time, it chooses to use the 2-step random access process for access; when the UE meets any of the above three conditions, it does not choose to use the 2-step random access process Perform access, and select the 4-step-random access process for access.
  • the UE determines that the reference signal strength is less than the preset threshold, it means that the current signal strength is weak. If the UE uses the 2-step-random access process for access, it may cause frequent access failures. When the UE selects the 4-step-random access procedure for access.
  • the reference signal strength is RSRP or RSRQ.
  • the preset threshold value may be the minimum signal strength value configured by the network device to allow the UE to use the 2-step-random access process for access.
  • the preset threshold value can be set according to actual application scenarios, and this embodiment does not specifically limit the preset threshold value here.
  • the preset threshold value of the UE can be set through a network device.
  • the network device may send the preset threshold value to the UE, and the UE may receive the preset threshold value.
  • the network device includes the preset threshold value in the radio resource control RRC message and sends it to the UE, or the network device includes the preset threshold value in the system broadcast message and sends it to the UE, so that the UE can receive Preset threshold value.
  • the UE determines that the uplink data to be sent does not meet the conditions, it means that the current uplink data corresponding to the business is not suitable for access using the 2-step random access process. Therefore, the UE chooses 4-step -Random access process for access.
  • a type set can be preset.
  • the UE is not allowed to use the 2-step-random access process for access.
  • the UE can use the 4-step-random access procedure for access.
  • the QCIs of the services corresponding to the uplink data contained in the preset type set and the number of QCIs contained can be set according to actual application scenarios, which is not specifically limited in this embodiment.
  • the preset type set can be set through a network device.
  • the network device may send the preset type set to the UE, and the UE may receive the preset type set.
  • the network device may include the preset type set in an RRC message and send it to the UE, or the network device may include the preset type set in a system broadcast message and send it to the UE, so that the UE can receive the preset type set .
  • the UE receives the prohibition indication information, it means that due to network congestion and other reasons, the network equipment temporarily prohibits the UE from using the 2-step random access procedure to access. At this time, the UE can only choose 4-step- Access is performed during random access.
  • the barring indication information may also include a preset barring time period.
  • the preset barring time period refers to a period during which the UE is prohibited from using the 2-step random access procedure for access. During this period, the UE is prohibited from using 2-step -Random access process for access.
  • the prohibition instruction information can specify a preset prohibition time period within a certain period of time after receiving the prohibition instruction information, or it can specify a fixed preset prohibition time period every day, etc., this embodiment does not make specific details here. limited.
  • the network device may carry the preset prohibition time period in the prohibition indication information and send it to the UE.
  • the network device may pre-arrange the preset prohibition time period with the UE; or, the network device may also send a separate notification to the UE.
  • the UE sends a preset prohibition time period; this embodiment does not make a specific limitation here.
  • the UE accesses the network, if it receives the barring indication information before and within the preset barring time period, it cannot use the 2-step-random access process for access, but uses the 4-step-random access process for access. Access.
  • Step S303 The network device receives the uplink data sent by the UE using the 4-step-random access procedure.
  • the UE uses a 4-step-random access procedure to access, that is, the UE uses a 4-step-random access procedure to send uplink data to the network device.
  • the network device receives the uplink data sent by the UE using the 4-step-random access procedure.
  • the prohibition indication information may also include a preset prohibition time period
  • the network device may also receive the UE using the 4-step-random access process to send uplink data when the UE receives the prohibition indication information and within the preset prohibition time period.
  • the network device when it is detected that the network is in a congested state, the network device sends prohibition indication information to the UE to instruct the UE to temporarily prohibit the use of the 2-step-random access process to access the network.
  • the UE When the UE is accessing the network, if it receives the prohibition indication information, it temporarily does not select the 2-step-random access process, but selects the 4-step-random access process for access, thereby avoiding random access under the network congestion condition. Data transmission failure caused by access failure improves user experience.
  • FIG. 6 is a schematic structural diagram of a terminal device provided in Embodiment 3 of this application.
  • the terminal device provided in the embodiment of the present application may execute the processing procedure of the UE in the first embodiment.
  • the terminal device 30 includes: a processing module 301 and a sending module 302.
  • the processing module 301 is used to determine the reference signal strength.
  • the sending module 302 is configured to use a 2-step random access procedure to send the uplink data if the reference signal strength is greater than or equal to the preset threshold and the uplink data to be sent meets the conditions.
  • the terminal device provided in the embodiment of the present application may be specifically used to execute the processing procedure performed by the UE in the first embodiment above, and the specific functions will not be repeated here.
  • the UE selects whether to use the 2-step- Random access process. If the reference signal strength is greater than or equal to the preset threshold, and the uplink data to be sent meets the conditions, that is, when the current signal strength is strong enough and the uplink random access data service meets the conditions, the 2-step random access is selected.
  • the 4-step-random access process for access, which can avoid frequent access when the signal is weak In the case of failure, it can also flexibly set the conditions that need to be met by the uplink data transmitted by the 2-step-random access process, which can improve the success rate of the uplink random access of the terminal equipment, reduce the signaling burden on the network, and thus improve the network The overall performance.
  • FIG. 7 is a schematic structural diagram of a terminal device provided in Embodiment 4 of this application.
  • the sending module 301 is also used to:
  • the 4-step-random access process is used to send the uplink data
  • the uplink data meets the conditions, including at least one of the following:
  • the QCI of the service corresponding to the uplink data belongs to a preset type set, and the preset type set includes at least one QCI.
  • the terminal device 30 may further include a receiving module 303.
  • the receiving module 303 is configured to: receive a set of preset types.
  • the preset type set is included in the RRC message or system broadcast message.
  • the receiving module 303 is also used to:
  • the reference signal strength is RSRP or RSRQ.
  • the sending module 301 is also used to:
  • the 4-step-random access procedure is used to send uplink data.
  • the prohibition indication information includes at least one of the following information: cell broadcast information, physical layer signaling, medium access control layer control element, or RRC message.
  • the prohibition indication information also includes a preset prohibition time period
  • the sending module 301 is also used to: if the prohibition indication information is received and within the preset prohibition time period, use 4-step random access The process sends uplink data.
  • the terminal device provided in the embodiment of the present application may be specifically used to execute the processing procedure performed by the UE in the second embodiment above, and the specific functions will not be repeated here.
  • the network device when it is detected that the network is in a congested state, the network device sends prohibition indication information to the UE to instruct the UE to temporarily prohibit the use of the 2-step-random access process to access the network.
  • the UE When the UE is accessing the network, if it receives the prohibition indication information, it temporarily does not select the 2-step-random access process, but selects the 4-step-random access process for access, thereby avoiding random access under the network congestion condition. Data transmission failure caused by access failure improves user experience.
  • FIG. 8 is a schematic structural diagram of a network device provided in Embodiment 5 of this application.
  • the network device provided in the embodiment of this application can execute the processing procedure of the network device in the first embodiment.
  • the network device 40 includes: a receiving module 401.
  • the receiving module 401 is configured to receive uplink data sent by a terminal device using a 2-step-random access process.
  • the uplink data is sent by the terminal device when the reference signal strength is greater than or equal to a preset threshold and the uplink data meets the conditions. .
  • the terminal device provided in the embodiment of the present application may be specifically used to execute the processing procedure performed by the network device in the first embodiment above, and the specific functions will not be repeated here.
  • the UE selects whether to use the 2-step- Random access process. If the reference signal strength is greater than or equal to the preset threshold, and the uplink data to be sent meets the conditions, that is, when the current signal strength is strong enough and the uplink random access data service meets the conditions, the 2-step random access is selected.
  • FIG. 9 is a schematic structural diagram of a network device provided in Embodiment 6 of this application.
  • the receiving module 401 is also used to: receive the uplink data sent by the terminal device using the 4-step-random access process. Sent when the limit value, or the uplink data does not meet the conditions, or when the prohibition instruction message is received.
  • the prohibition indication information further includes a preset prohibition time period
  • the receiving module 401 is further configured to: the receiving terminal device uses 4-step random access within the preset prohibition time period after receiving the prohibition indication information. Uplink data sent during the process.
  • the uplink data meets the conditions, including at least one of the following:
  • the QCI of the service corresponding to the uplink data belongs to a preset type set, and the preset type set includes at least one QCI.
  • the network device 40 further includes a sending module 402.
  • the sending module 402 is configured to send the preset type set to the terminal device.
  • the preset type set is included in the RRC message or system broadcast message.
  • the sending module 402 is further configured to send a preset threshold value to the terminal device, where the preset threshold value is included in an RRC message or a system broadcast message.
  • the prohibition indication information includes at least one of the following information: cell broadcast information, physical layer signaling, medium access control layer control element, or RRC message.
  • the reference signal strength is RSRP or RSRQ.
  • the terminal device provided in the embodiment of the present application may be specifically used to execute the processing procedure executed by the network device in the second embodiment above, and the specific functions will not be repeated here.
  • the network device when it is detected that the network is in a congested state, the network device sends prohibition indication information to the UE to instruct the UE to temporarily prohibit the use of the 2-step-random access process to access the network.
  • the UE When the UE is accessing the network, if it receives the prohibition indication information, it temporarily does not select the 2-step-random access process, but selects the 4-step-random access process for access, thereby avoiding random access under the network congestion condition. Data transmission failure caused by access failure improves user experience.
  • FIG. 10 is a schematic structural diagram of a terminal device provided in Embodiment 7 of this application.
  • the terminal device 80 includes a processor 81 and a memory 82.
  • the memory 82 stores computer execution instructions.
  • the processor 81 executes the computer-executable instructions stored in the memory 82, so that the processor 81 executes the method procedure executed by the UE in any of the foregoing method embodiments.
  • the UE selects whether to use the 2-step- Random access process. If the reference signal strength is greater than or equal to the preset threshold, and the uplink data to be sent meets the conditions, that is, when the current signal strength is strong enough and the uplink random access data service meets the conditions, the 2-step random access is selected.
  • the 4-step-random access process for access, which can avoid frequent access when the signal is weak In the case of failure, it can also flexibly set the conditions that need to be met by the uplink data transmitted by the 2-step-random access process, which can improve the success rate of the uplink random access of the terminal equipment, reduce the signaling burden on the network, and thus improve the network The overall performance.
  • FIG. 11 is a schematic structural diagram of a network device provided in Embodiment 8 of this application. As shown in FIG. 11, the network device 90 includes a processor 91 and a memory 92.
  • the memory 92 stores computer-executable instructions; the processor 91 executes the computer-executable instructions stored in the memory 92, so that the processor 91 executes the method flow executed by the network device in any of the foregoing method embodiments.
  • the UE selects whether to use the 2-step- Random access process. If the reference signal strength is greater than or equal to the preset threshold, and the uplink data to be sent meets the conditions, that is, when the current signal strength is strong enough and the uplink random access data service meets the conditions, the 2-step random access is selected.
  • the 4-step-random access process for access, which can avoid frequent access when the signal is weak In the case of failure, it can also flexibly set the conditions that need to be met by the uplink data transmitted by the 2-step-random access process, which can improve the success rate of the uplink random access of the terminal equipment, reduce the signaling burden on the network, and thus improve the network The overall performance.
  • the embodiments of the present application also provide a computer-readable storage medium.
  • the computer-readable storage medium stores computer-executable instructions. When the computer-executable instructions are executed by a processor, they are used to implement the execution of the UE in any of the foregoing method embodiments. Method flow.
  • the embodiments of the present application also provide a computer-readable storage medium.
  • the computer-readable storage medium stores computer-executable instructions. When the computer-executable instructions are executed by a processor, they are used to implement the network device in any of the foregoing method embodiments. The method flow of execution.
  • first, second, third, etc. may be used herein to describe various information, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as second information, and similarly, the second information may also be referred to as first information.
  • the word “if” as used herein can be interpreted as “when” or “when” or “in response to determination”.
  • singular forms “a”, “an” and “the” are intended to also include plural forms, unless the context indicates to the contrary.

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Abstract

本申请提供一种数据传输方法、设备及存储介质。本申请的方法包括：终端设备确定参考信号强度；若所述参考信号强度大于或等于预设门限值，且待发送的上行数据符合条件，则采用2步-随机接入过程发送上行数据。本申请的方法，对于同时配置了2步-随机接入过程和4步-随机接入过程的终端设备，能够提高终端设备上行随机接入的成功率，减少网络的信令负担，从而进一步提高网络的整体性能。

Description

数据传输方法、设备及存储介质 技术领域
本申请涉及通信技术领域，尤其涉及一种数据传输方法、设备及存储介质。
背景技术
随着通信技术的不断发展，第五代移动通信技术(5th-Generation，5G)应用场景广泛，由于UE(User Equipment，终端设备)需要接入到网络设备中，进而在5G技术中依然需要随机接入的过程。
其中，低延时是5G技术的重要特征之一。但是，对于一些频发的数据传输，尤其是数据量较小的传输，会给网络造成不必要且较大的信令负担。在减小数据发送信令负担方面，5G技术引入了2步-随机接入过程，对传统4步-随机接入过程进行了简化和优化，提升了终端设备接入网络和发送数据的性能，减少了延时，用以满足5G多样化的业务需求。
但是，终端设备采用2步-随机接入过程接入网络，由于网络的信号质量、网络负载、UE分布、业务量等多种因素的影响，导致终端设备频繁接入失败，降低网络的整体性能。
前面的叙述在于提供一般的背景信息，并不一定构成现有技术。
发明内容
本申请实施例提供一种数据传输方法、设备及存储介质，以解决现有技术中终端设备采用2步-随机接入过程接入网络，由于网络的信号质量、网络负载、UE分布、业务量等多种因素的影响，导致终端设备频繁接入失败，降低网络的整体性能的问题。
第一方面，本申请实施例提供一种数据传输方法，包括：
确定参考信号强度；
若所述参考信号强度大于或等于预设门限值，且待发送的上行数据符合 条件，则采用2步-随机接入过程发送所述上行数据。
在一种可能的设计中，还包括：
若所述参考信号强度小于所述预设门限值，或者所述上行数据不符合条件，则采用4步-随机接入过程发送所述上行数据。
在一种可能的设计中，所述上行数据符合条件，包括以下至少一种：
所述上行数据对应的业务的QCI(QoS Classification Identifier，服务质量分类标识)属于预设类型集合，所述预设类型集合包括至少一个QCI。
在一种可能的设计中，还包括：接收所述预设类型集合。
在一种可能的设计中，所述预设类型集合包含在RRC(Radio Resource Control，无线资源控制)消息中或系统广播消息中。
在一种可能的设计中，还包括：
接收所述预设门限值，其中，所述预设门限值包含在RRC消息中或系统广播消息。
在一种可能的设计中，所述参考信号强度为RSRP(Reference Signal Receiving Power，参考信号接收功率)或者RSRQ(Reference Signal Receiving Quality，参考信号接收质量)。
在一种可能的设计中，还包括：
若接收到禁止指示信息，则采用4步-随机接入过程发送所述上行数据。
在一种可能的设计中，所述禁止指示信息包含在如下信息中的至少一种：小区广播信息、物理层信令、媒体访问控制层控制元素或RRC消息。
在一种可能的设计中，所述禁止指示信息还包括预设禁止时间段，所述方法还包括：
若接收到禁止指示信息，且在所述预设禁止时间段内，则采用4步-随机接入过程发送所述上行数据。
第二方面，本申请实施例提供一种数据传输方法，包括：
接收终端设备采用2步-随机接入过程发送的上行数据，所述上行数据为所述终端设备在参考信号强度大于或等于预设门限值且所述上行数据符合条件时发送的。
在一种可能的设计中，还包括：
向所述终端设备发送禁止指示信息。
在一种可能的设计中，还包括：
接收所述终端设备采用4步-随机接入过程发送的上行数据，所述上行数据为所述终端设备在参考信号强度小于所述预设门限值、或者所述上行数据不符合条件、或者接收到禁止指示信息时发送的。
在一种可能的设计中，所述禁止指示信息还包括预设禁止时间段，所述方法还包括：
接收所述终端设备在接收到禁止指示信息且在所述预设禁止时间段内采用4步-随机接入过程发送的上行数据。
在一种可能的设计中，所述上行数据符合条件，包括以下至少一种：
所述上行数据对应的业务的QCI属于预设类型集合，所述预设类型集合包括至少一个QCI。
在一种可能的设计中，还包括：
向所述终端设备发送所述预设类型集合。
在一种可能的设计中，所述预设类型集合包含在RRC消息中或系统广播消息中。
在一种可能的设计中，还包括：
向所述终端设备发送所述预设门限值，其中，所述预设门限值包含在RRC消息中或系统广播消息。
在一种可能的设计中，所述禁止指示信息包含在如下信息中的至少一种：小区广播信息、物理层信令、媒体访问控制层控制元素或RRC消息。
在一种可能的设计中，所述参考信号强度为RSRP或者RSRQ。
第三方面，本申请实施例提供一种终端设备，包括：
处理器、存储器；
所述存储器存储计算机执行指令；
所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执行上述第一方面中任一项所述的数据传输方法。
第四方面，本申请实施例提供一种网络设备，包括：
处理器、存储器；
所述存储器存储计算机执行指令；
所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执 行上述第二方面中任一项所述的数据传输方法。
第五方面，一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机执行指令，当所述计算机执行指令被处理器执行时用于实现上述第一方面或第二方面中任一项所述的数据传输方法。
本申请实施例提供的一种数据传输方法、设备及存储介质，该方法对于同时配置了2步-随机接入过程和4步-随机接入过程的终端设备UE，在接入网络时，UE基于参考信号强度和待传输的上行数据是否满足条件来选择是否采用2步-随机接入过程，若参考信号强度大于或等于预设门限值，且待发送的上行数据符合条件，也就是在当前信号强度足够强且上行随机接入的数据业务符合条件时，选择2步-随机接入方法进行接入，这样不仅可以避免信号较弱时频繁接入失败的情况，而且还可以灵活地设置采用2步-随机接入过程传输的上行数据所需满足的条件，能够提高终端设备上行随机接入的成功率，减少网络的信令负担，从而提高网络的整体性能。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的通信系统架构示意图；
图2为本申请实施例提供的一种4-步随机接入过程的示意图；
图3为本申请实施例提供的一种2-步随机接入过程的示意图；
图4为本申请实施例一提供的一种数据传输方法流程图；
图5为本申请实施例二提供的一种数据传输方法流程图；
图6为本申请实施例三提供的一种终端设备的结构示意图；
图7为本申请实施例四提供的一种终端设备的结构示意图；
图8为本申请实施例五提供的一种网络设备的结构示意图；
图9为本申请实施例六提供的一种网络设备的结构示意图；
图10为本申请实施例七提供的一种终端设备的结构示意图；
图11为本申请实施例八提供的一种网络设备的结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请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申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，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，都属于本申请保护的范围。
本申请提供的数据传输的方法，可以适用于图1所示的通信系统架构示意图。如图1所示，该通信系统包括：网络设备以及多个终端设备，假设多个终端设备包括图中的终端设备1、终端设备2、终端设备3和终端设备4。需要说明的是，图1所示的通信系统可以适用于不同的网络制式，例如，可以适用于GSM(Global System of Mobile communication，全球移动通讯)、CDMA(Code Division Multiple Access，码分多址)、WCDMA(Wideband Code Division Multiple Access，宽带码分多址)、TD-SCDMA(Time Division-Synchronous Code Division Multiple Access，时分同步码分多址)、LTE(Long Term Evolution，长期演进)系统及未来的5G等网络制式。可选的，上述通信系统可以为5G通信系统中URLLC(Ultra-Reliable and Low Latency Communications，高可靠低时延通信)传输的场景中的系统。
故而，可选的，上述网络设备可以是GSM或CDMA中的BTS(Base Transceiver Station，基站)和/或基站控制器，也可以是WCDMA中的NB(NodeB，基站)和/或RNC(Radio Network Controller，无线网络控制器)，还可以是LTE中的eNB(Evolutional Node B，基站)或eNodeB)，或者中继站或接入点，或者未来5G网络中的基站(gNB)等，本申请在此并不限定。
上述终端设备可以是无线终端也可以是有线终端。无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备，具有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他处理设备。无线终端可以经RAN(Radio Access Network，无线接入网)与一个或多个核心网设备进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，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，它们与无线接入网交换语言和/或数据。再例如，无线终端还可以是 PCS(Personal Communication Service，个人通信业务)电话、无绳电话、SIP(Session Initiation Protocol，会话发起协议)话机、WLL(Wireless Local Loop，无线本地环路)站、PDA(Personal Digital Assistant，个人数字助理)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)，在此不作限定。可选的，上述终端设备还可以是智能手表、平板电脑等设备。
需要说明的是，本申请的说明书和权利要求书及上述附图中，“随机接入消息”可以是指2步-随机接入过程中的MSGA，“随机接入反馈消息”可以是指2步随机接入过程中的MSGB，“第一消息”可以是指4步-随机接入过程中的MSG1，“第二消息”可以是指4步-随机接入过程中的MSG2，“第三消息”可以是指4步-随机接入过程中的MSG3，“第四消息”可以是指4步-随机接入过程中的MSG4。
图2为本申请实施例提供的一种4-步随机接入过程的示意图。如图2所示，4步-随机接入过程可以包括以下步骤：
步骤S11、UE向网络设备发送第一消息MSG1，MSG1包括随机接入前导码。
该步骤中，MSG1可以包括随机接入前导码，还可以包括其他信息，本实施例此处不再赘述。UE通过PRACH(Physical Random Access Channel，物理随机接入信道)向网络设备发送MSG1。
步骤S12、网络设备向UE发送第二消息MSG2。
该步骤中，MSG2可以为随机接入响应消息，但不限于此消息。MSG2还可以包括回退指示、上行授权信息、随机接入网络临时标识中的一项或者多项，当然，MSG2还可以包括其他信息，本实施例此处不再赘述。
步骤S13、UE向网络设备发送第三消息MSG3。
该步骤中，MSG3可以为RRC连接请求消息，但不限于此消息。MSG3可以包括系统架构演进临时移动站标识符等，还可以包括其他信息，本实施例此处不再赘述。
步骤S14、网络测设备向UE发送第四消息MSG4。
该步骤中，MSG4可以为RRC连接建立消息，但不限于此消息。MSG4可以包括竞争解决(Contention Resolution)等，MSG4还可以包括其他信息，本实施例此处不再赘述。
图3为本申请实施例提供的一种2-步随机接入过程的示意图。如图3所示，2步-随机接入过程可以包括如下步骤：
步骤S21、UE向网络设备发送随机接入消息MSGA，MSGA包括随机接入前导码和在PUSCH(Physical Uplink Shared Channel，上行物理共享信道)上发送的载荷(Payload)。
该步骤中，UE通过PRACH上发送随机接入前导码，通过PUSCH向网络设备发送载荷(Payload)。另外，MSGA还可以携带UE标识等其他信息，本实施例此处不再赘述。
步骤S22、网络设备向UE发送反馈消息MSGB，MSGB包括确认指示。
该步骤中，MSGB可以包括确认指示。MSGB还可以包括UE标识等其他信息，本实施例此处不再赘述。
由此可见，2步-随机接入过程对传统4步-随机接入过程进行了简化和优化，提升了终端设备接入网络和发送数据的性能，减少了延时，用以满足5G多样化的业务需求。
本申请具体的应用场景：终端设备UE同时配置了2步-随机接入和4步随机接入，在接入网络时，UE可以选择使用其中任意一种随机接入过程接入。2步-随机接入过程的成功取决于网络的信号质量、网络负载、UE分布、业务量等多种因素，其虽然带来了一定的性能和延时提升，但是不当的配置和使用，反而会降低网络的整体性能，频繁的接入失败，会极大的降低用户的体验。
本申请提供的数据传输的方法，旨在解决上述技术问题。
下面以具体地实施例对本申请的技术方案以及本申请的技术方案如何解决上述技术问题进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例中不再赘述。下面将结合附图，对本申请的实施例进行描述。
图4为本申请实施例一提供的一种数据传输方法流程图。如图4所示， 该方法具体步骤如下：
步骤S201、UE确定参考信号强度。
对于2步-随机接入过程而言，UE可能是处于TA(Timing Advance，上行定时提前)失步的情况下，因此为了保证基站接收和信号解调质量，UE不能距离基站太远。
本实施例中，在接入网络之前，UE可以先确定当前的参考信号强度，并基于当前的参考信号强度来判断是否选择采用2步-随机接入过程接入网络。
示例性地，参考信号强度可以为RSRP或者RSRQ。另外，该步骤中UE可以采用现有技术中任意一种确定参考信号强度的方法实现，本实施例此处不再赘述。
步骤S202、若参考信号强度大于或等于预设门限值，且待发送的上行数据符合条件，则UE采用2步-随机接入过程发送上行数据。
其中，预设门限值可以是网络设备配置的允许UE采用2步-随机接入方法进行接入时的最小信号强度。预设门限值可以根据实际应用场景进行设定，本实施例此处对于预设门限值不做具体限定。
如果UE确定当前的参考信号强度小于该预设门限值，则说明当前信号较弱，UE不能采用2步-随机接入过程，而应采用4步-随机接入过程发送上行数据，也就是采用4步-随机接入过程进行接入。
其中，待发送的上行数据符合的条件可以是通过网络设备配置的、允许UE采用2步-随机接入过程进行接入时所要传送的上行数据所需满足的条件。通过这一条件的设定，可以配置UE在传送哪些类型的业务的数据时可以采用2步-随机接入过程进行接入，而在传送其他类型的业务的数据时，须采用4步-随机接入过程进行接入。另外，待发送的上行数据符合的条件可以根据实际应用场景进行灵活地配置，本实施例此处不做具体限定。
本实施例中，如果UE确定当前的参考信号强度大于或者等于该预设门限值，并且待发送的上行数据符合条件时，则采用2步-随机接入过程发送上行数据。
示例性地，可以预先设定一个类型集合，当UE要发送的上行数据对应的业务的QCI不属于该预设类型集合时，不允许UE采用2步-随机接入过程进行接入，此时UE可以采用4步-随机接入过程进行接入。
另外，预设类型集合中包含哪些上行数据对应的业务的QCI，以及包含的QCI的数量均可以根据实际应用场景进行设定，本实施例此处不做具体限定。
可选地，预设类型集合可以通过网络设备进行设定。网络设备可以向UE发送预设类型集合，UE可以接收到预设类型集合。例如，网络设备可以将预设类型集合包含在RRC消息中发送给UE，或者，网络设备可以将预设类型集合包含在系统广播消息中发送给UE，这样，UE就可以接收到预设类型集合。
步骤S203、网络设备接收UE采用2步-随机接入过程发送的上行数据。
其中，上行数据是UE在参考信号强度大于或等于预设门限值且上行数据符合条件时发送的。
步骤S204、若参考信号强度小于预设门限值，或者上行数据不符合条件，则UE采用4步-随机接入过程发送上行数据。
本实施例中，如果UE确定当前的参考信号强度小于该预设门限值，则说明当前信号较弱，UE不能采用2步-随机接入过程，而应采用4步-随机接入过程发送上行数据，也就是采用4步-随机接入过程进行接入。
如果UE确定待发送的上行数据不符合条件，则说明对于当前的上行数据对应的业务，不适合采用2步-随机接入过程进行接入，因此，UE选择采用4步-随机接入过程发送上行数据，也就是采用4步-随机接入过程进行接入。
步骤S205、网络设备接收UE采用4步-随机接入过程发送的上行数据。
其中，上行数据为终端设备在参考信号强度小于预设门限值或者上行数据不符合条件时发送的。
本申请实施例对于同时配置了2步-随机接入过程和4步-随机接入过程的UE，在接入网络时，UE基于参考信号强度和上行数据是否符合条件来选择是否采用2步-随机接入过程。如果参考信号强度大于或等于预设门限值，且待发送的上行数据符合条件，也就是在当前信号强度足够强且上行随机接入的数据业务符合条件时，则选择采用2步-随机接入过程进行接入；如果参考信号强度小于预设门限值或者待发送的上行数据不符合条件，则选择采用4步-随机接入过程进行接入，这样可以避免信号较弱时频繁接入失败的情况，而且还可以灵活地设置采用2步-随机接入过程传输的上行数据所需满足的条 件，能够提高终端设备上行随机接入的成功率，减少网络的信令负担，从而提高网络的整体性能。
图5为本申请实施例二提供的一种数据传输方法流程图。在上述实施例一的基础上，本实施例中，网络设备可以根据当前网络拥塞状态来向UE发送禁止指示信息，在接入网络时，若UE接收到禁止指示信息，则不采用2步随机接入过程，而采用4步随机接入过程进行接入。
如图5所示，该方法具体步骤如下：
步骤S301、网络设备向UE发送禁止指示信息。
通常2步-随机接入过程在发送随机接入前导码时，同时需要在PUSCH上传输数据，如果网络当前处于一定的拥塞状态，比如大量UE或者上行业务过多，则会导致频繁的随机接入失败，例如随机接入前导码发送失败、或者MSGA发送失败、或者基站无法正确接收到上行数据等等均会导致随机接入失败，这样反而会降低系统性能。
本实施例中，网络设备可以在检测到网络发生拥塞等不适合进行2步-随机接入的情况下，向UE发送禁止指示信息，该禁止指示信息用于指示UE暂时不采用2步-随机接入过程。
其中，网络设备检测网络发生拥塞等不适合进行2步-随机接入的情况的检测方法可以采用SON/MDT技术自动搜集网络当前的状态和反馈，或者可以采用现有技术中任意一种类似的方法实现，本实施例此处不再赘述。
具体地，禁止指示信息可以包含在如下信息中的至少一种：小区广播信息、物理层信令、媒体访问控制层控制元素或RRC消息。
例如，网络设备可以通过小区广播消息向UE发生禁止指示信息，或者，还可以通过物理层信令、媒体访问控制层控制元素或RRC消息等形式动态地向UE发送禁止指示信息。
另外，如果一个小区用户本来已经很多，那么通过RRC消息来发送禁止指示信息可能会增加信令负担，因此本实施例中优选的方式是通过广播消息来动态来向UE发送禁止指示信息，这样能够提升UE的接入性能和减少系统不必要的负担。
示例性地，禁止指示信息可以使用1比特的信息，实现动态地指示UE是否可以采取2步-随机接入过程进行接入。例如，如果该禁止指示信息为1， 则表示禁止UE暂时采取2步-随机接入过程进行接入；如果该禁止指示信息为0，则表示允许UE暂时采取2步-随机接入过程进行接入。本实施例中对于禁止指示信息的具体实现方式不做具体限定。
步骤S302、若UE接收到禁止指示信息，则UE选择采用4步-随机接入过程发送上行数据。
本实施例中，禁止指示信息还可以包括预设禁止时间段，预设禁止时间段是指禁止UE采用2步-随机接入过程进行接入的时段，在这一时段内，禁止UE采用2步-随机接入过程进行接入。例如，禁止指示信息可以指定在接收到禁止指示信息起一定时长内的预设禁止时间段，或者可以指定在每天的一个固定的预设禁止时间段，等等，本实施例此处不做具体限定。
网络设备可以将预设禁止时间段携带在禁止指示信息中发送给UE，本实施例的其他实施方式中，网络设备可以与UE预先约定好预设禁止时间段；或者，网络设备还可以单独向UE发送禁止指示信息对应的预设禁止时间段；本实施例此处不做具体限定。
相应地，该步骤具体可以采用如下方式实现：UE在接入网络时，如果之前接收到禁止指示信息，并且在预设禁止时间段，则不能采用2步-随机接入过程进行接入，而采用4步-随机接入过程进行接入。
另外，本实施例还可以与上述实施例一或实施例二结合，产生多种可能的实施方式。
将本实施例与上述实施例一结合，得到一种可能的实施方式为：
UE在参考信号强度大于或者等于预设门限值，并且未接收到禁止指示信息时，选择采用2步-随机接入过程进行接入；UE在参考信号强度小于预设门限值，或者接收到禁止指示信息时，选择采用4步-随机接入过程进行接入。
将本实施例与上述实施例二结合，得到另一种可能的实施方式为：
对于以下三个条件：第一个条件，参考信号强度小于预设门限值；第二个条件，待发送的上行数据不符合条件；第三个条件，接收到禁止指示信息。
UE在同时不满足这三个条件时，则选择采用2步-随机接入过程进行接入；UE在满足以上这三个条件中的任意一个条件时，不选择采用2步-随机接入过程进行接入，而选择4步-随机接入过程进行接入。
对于上述第一个条件，如果UE确定参考信号强度小于预设门限值，则 说明当前信号强度较弱，若UE采用2步-随机接入过程进行接入可能会导致频繁接入失败，此时，UE选择4步-随机接入过程进行接入。
其中，参考信号强度为RSRP或者RSRQ。预设门限值可以是通过网络设备配置的允许UE采用2步-随机接入过程进行接入时的最小信号强度值。预设门限值可以根据实际应用场景进行设定，本实施例此处对于预设门限值不做具体限定。
可选地，可以通过网络设备设定UE的预设门限值。网络设备可以向UE发送预设门限值，UE可以接收到预设门限值。例如，通过网络设备将预设门限值包含在无线资源控制RRC消息中发送给UE，或者通过网络设备将预设门限值包含在系统广播消息中发送给UE，这样，UE就可以接收到预设门限值。
对于上述第二个条件，如果UE确定待发送的上行数据不符合条件，则说明对于当前的上行数据对应的业务，不适合采用2步-随机接入过程进行接入，因此，UE选择4步-随机接入过程进行接入。
示例性地，可以预先设定一个类型集合，当UE要发送的上行数据对应的业务的QCI不属于该预设类型集合时，不允许UE采用2步-随机接入过程进行接入，此时UE可以采用4步-随机接入过程进行接入。另外，预设类型集合中包含哪些上行数据对应的业务的QCI，以及包含的QCI的数量均可以根据实际应用场景进行设定，本实施例此处不做具体限定。
可选地，预设类型集合可以通过网络设备进行设定。网络设备可以向UE发送预设类型集合，UE可以接收到预设类型集合。例如，网络设备可以将预设类型集合包含在RRC消息中发送给UE，或者，网络设备可以将预设类型集合包含在系统广播消息中发送给UE，这样，UE就可以接收到预设类型集合。
对于上述第三个条件，如果UE接收到禁止指示信息，则说明由于网络拥塞等原因，网络设备暂时禁止UE采用2步-随机接入过程进行接入，此时，UE只能选择4步-随机接入过程进行接入。
可选地，禁止指示信息还可以包括预设禁止时间段，预设禁止时间段是指禁止UE采用2步-随机接入过程进行接入的时段，在这一时段内，禁止UE采用2步-随机接入过程进行接入。例如，禁止指示信息可以指定在接收到禁 止指示信息起一定时长内的预设禁止时间段，或者可以指定在每天的一个固定的预设禁止时间段，等等，本实施例此处不做具体限定。
网络设备可以将预设禁止时间段携带在禁止指示信息中发送给UE，本实施例的其他实施方式中，网络设备可以与UE预先约定好预设禁止时间段；或者，网络设备还可以单独向UE发送预设禁止时间段；本实施例此处不做具体限定。
相应地，UE在接入网络时，如果之前接收到禁止指示信息，并且在预设禁止时间段，则不能采用2步-随机接入过程进行接入，而采用4步-随机接入过程进行接入。
步骤S303、网络设备接收UE采用4步-随机接入过程发送的上行数据。
在UE满足上述三个条件中的任意一个条件时，UE采用4步-随机接入过程进行接入，也就是UE采用4步-随机接入过程向网络设备发送的上行数据。此时，网络设备接收UE采用4步-随机接入过程发送的上行数据。
另外，禁止指示信息还可以包括预设禁止时间段，网络设备还可以接收述UE在接收到禁止指示信息且在预设禁止时间段内时采用4步-随机接入过程发送上行数据。
本申请实施例通过在检测到网络处于拥塞状态时，网络设备向UE发送禁止指示信息，以指示UE暂时禁止采用2步-随机接入过程进行接入网络。UE在接入网络时，如果接收到禁止指示信息，则暂时不选择2步-随机接入过程，而选择4步-随机接入过程进行接入，从而避免了在网络拥塞状况下，随机接入失败而造成的数据传输失败，改善用户体验。
图6为本申请实施例三提供的一种终端设备的结构示意图。本申请实施例提供的终端设备可以执行实施例一中UE的处理流程。如图6所示，该终端设备30包括：处理模块301和发送模块302。
具体地，处理模块301，用于确定参考信号强度。
发送模块302，用于若参考信号强度大于或等于预设门限值，且待发送的上行数据符合条件，则采用2步-随机接入过程发送上行数据。
本申请实施例提供的终端设备可以具体用于执行上述实施例一中UE所执行的处理流程，具体功能此处不再赘述。
本申请实施例对于同时配置了2步-随机接入过程和4步-随机接入过程的 UE，在接入网络时，UE基于参考信号强度和上行数据是否符合条件来选择是否采用2步-随机接入过程。如果参考信号强度大于或等于预设门限值，且待发送的上行数据符合条件，也就是在当前信号强度足够强且上行随机接入的数据业务符合条件时，则选择采用2步-随机接入过程进行接入；如果参考信号强度小于预设门限值或者待发送的上行数据不符合条件，则选择采用4步-随机接入过程进行接入，这样可以避免信号较弱时频繁接入失败的情况，而且还可以灵活地设置采用2步-随机接入过程传输的上行数据所需满足的条件，能够提高终端设备上行随机接入的成功率，减少网络的信令负担，从而提高网络的整体性能。
图7为本申请实施例四提供的一种终端设备的结构示意图。在上述实施例三的基础上，本实施例中，发送模块301还用于：
若参考信号强度小于预设门限值，或者上行数据不符合条件，则采用4步-随机接入过程发送上行数据
在一种可能的设计中，上行数据符合条件，包括以下至少一种：
上行数据对应的业务的QCI属于预设类型集合，预设类型集合包括至少一个QCI。
在一种可能的设计中，如图8所示，终端设备30还可以包括接收模块303。接收模块303用于：接收预设类型集合。
在一种可能的设计中，预设类型集合包含在RRC消息中或系统广播消息中。
在一种可能的设计中，接收模块303还用于：
接收预设门限值，其中，预设门限值包含在RRC消息中或系统广播消息。
在一种可能的设计中，参考信号强度为RSRP或者RSRQ。
在一种可能的设计中，发送模块301还用于：
若接收到禁止指示信息，则采用4步-随机接入过程发送上行数据。
在一种可能的设计中，禁止指示信息包含在如下信息中的至少一种：小区广播信息、物理层信令、媒体访问控制层控制元素或RRC消息。
在一种可能的设计中，禁止指示信息还包括预设禁止时间段，发送模块301还用于：若接收到禁止指示信息，且在预设禁止时间段内，则采用4步-随机接入过程发送上行数据。
本申请实施例提供的终端设备可以具体用于执行上述实施例二中UE所执行的处理流程，具体功能此处不再赘述。
本申请实施例通过在检测到网络处于拥塞状态时，网络设备向UE发送禁止指示信息，以指示UE暂时禁止采用2步-随机接入过程进行接入网络。UE在接入网络时，如果接收到禁止指示信息，则暂时不选择2步-随机接入过程，而选择4步-随机接入过程进行接入，从而避免了在网络拥塞状况下，随机接入失败而造成的数据传输失败，改善用户体验。
图8为本申请实施例五提供的一种网络设备的结构示意图。本申请实施例提供的网络设备可以执行实施例一中网络设备的处理流程。如图8所示，该网络设备40包括：接收模块401。
具体地，接收模块401，用于接收终端设备采用2步-随机接入过程发送的上行数据，上行数据为终端设备在参考信号强度大于或等于预设门限值且上行数据符合条件时发送的。
本申请实施例提供的终端设备可以具体用于执行上述实施例一中网络设备所执行的处理流程，具体功能此处不再赘述。
本申请实施例对于同时配置了2步-随机接入过程和4步-随机接入过程的UE，在接入网络时，UE基于参考信号强度和上行数据是否符合条件来选择是否采用2步-随机接入过程。如果参考信号强度大于或等于预设门限值，且待发送的上行数据符合条件，也就是在当前信号强度足够强且上行随机接入的数据业务符合条件时，则选择采用2步-随机接入过程进行接入；如果参考信号强度小于预设门限值或者待发送的上行数据不符合条件，则选择采用4步-随机接入过程进行接入，这样可以避免信号较弱时频繁接入失败的情况，而且还可以灵活地设置采用2步-随机接入过程传输的上行数据所需满足的条件，能够提高终端设备上行随机接入的成功率，减少网络的信令负担，从而提高网络的整体性能。图9为本申请实施例六提供的一种网络设备的结构示意图。在上述实施例五的基础上，本实施例中，接收模块401还用于：接收终端设备采用4步-随机接入过程发送的上行数据，上行数据为终端设备在参考信号强度小于预设门限值、或者上行数据不符合条件、或者接收到禁止指示信息时发送的。
在一种可能的设计中，禁止指示信息还包括预设禁止时间段，接收模块401还用于：接收终端设备在接收到禁止指示信息且在预设禁止时间段内采用4步-随机接入过程发送的上行数据。
在一种可能的设计中，上行数据符合条件，包括以下至少一种：
上行数据对应的业务的QCI属于预设类型集合，预设类型集合包括至少一个QCI。
在一种可能的设计中，如图9所示，网络设备40还包括：发送模块402。发送模块402用于：向终端设备发送预设类型集合。
在一种可能的设计中，预设类型集合包含在RRC消息中或系统广播消息中。
在一种可能的设计中，发送模块402还用于：向终端设备发送预设门限值，其中，预设门限值包含在RRC消息中或系统广播消息。
在一种可能的设计中，禁止指示信息包含在如下信息中的至少一种：小区广播信息、物理层信令、媒体访问控制层控制元素或RRC消息。
在一种可能的设计中，参考信号强度为RSRP或者RSRQ。
本申请实施例提供的终端设备可以具体用于执行上述实施例二中网络设备所执行的处理流程，具体功能此处不再赘述。
本申请实施例通过在检测到网络处于拥塞状态时，网络设备向UE发送禁止指示信息，以指示UE暂时禁止采用2步-随机接入过程进行接入网络。UE在接入网络时，如果接收到禁止指示信息，则暂时不选择2步-随机接入过程，而选择4步-随机接入过程进行接入，从而避免了在网络拥塞状况下，随机接入失败而造成的数据传输失败，改善用户体验。
图10为本申请实施例七提供的一种终端设备的结构示意图。如图10所示，该终端设备80包括：处理器81、存储器82。存储器82存储计算机执行指令。
处理器81执行存储器82存储的计算机执行指令，使得处理器81执行上述任一方法实施例中UE所执行的方法流程。
本申请实施例对于同时配置了2步-随机接入过程和4步-随机接入过程的UE，在接入网络时，UE基于参考信号强度和上行数据是否符合条件来选择是否采用2步-随机接入过程。如果参考信号强度大于或等于预设门限值，且 待发送的上行数据符合条件，也就是在当前信号强度足够强且上行随机接入的数据业务符合条件时，则选择采用2步-随机接入过程进行接入；如果参考信号强度小于预设门限值或者待发送的上行数据不符合条件，则选择采用4步-随机接入过程进行接入，这样可以避免信号较弱时频繁接入失败的情况，而且还可以灵活地设置采用2步-随机接入过程传输的上行数据所需满足的条件，能够提高终端设备上行随机接入的成功率，减少网络的信令负担，从而提高网络的整体性能。
图11为本申请实施例八提供的一种网络设备的结构示意图。如图11所示，该网络设备90包括：处理器91、存储器92。
存储器92存储计算机执行指令；处理器91执行存储器92存储的计算机执行指令，使得处理器91执行如上述任一方法实施例中网络设备所执行的方法流程。
本申请实施例对于同时配置了2步-随机接入过程和4步-随机接入过程的UE，在接入网络时，UE基于参考信号强度和上行数据是否符合条件来选择是否采用2步-随机接入过程。如果参考信号强度大于或等于预设门限值，且待发送的上行数据符合条件，也就是在当前信号强度足够强且上行随机接入的数据业务符合条件时，则选择采用2步-随机接入过程进行接入；如果参考信号强度小于预设门限值或者待发送的上行数据不符合条件，则选择采用4步-随机接入过程进行接入，这样可以避免信号较弱时频繁接入失败的情况，而且还可以灵活地设置采用2步-随机接入过程传输的上行数据所需满足的条件，能够提高终端设备上行随机接入的成功率，减少网络的信令负担，从而提高网络的整体性能。
另外，本申请实施例还提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机执行指令，当计算机执行指令被处理器执行时用于实现上述任一方法实施例中UE所执行的方法流程。
另外，本申请实施例还提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机执行指令，当计算机执行指令被处理器执行时用于实现上述任一方法实施例中网络设备所执行的方法流程。
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。在以下各实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
应当理解，尽管在本文可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本文范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语"如果"可以被解释成为"在……时"或"当……时"或"响应于确定"。再者，如同在本文中所使用的，单数形式“一”、“一个”和“该”旨在也包括复数形式，除非上下文中有相反的指示.应当进一步理解，术语“包含”、“包括”表明存在所述的特征、步骤、操作、元件、组件、项目、种类、和/或组，但不排除一个或多个其他特征、步骤、操作、元件、组件、项目、种类、和/或组的存在、出现或添加.此处使用的术语“或”和“和/或”被解释为包括性的，或意味着任一个或任何组合。因此，“A、B或C”或者“A、B和/或C”意味着“以下任一个：A；B；C；A和B；A和C；B和C；A、B和C”。仅当元件、功能、步骤或操作的组合在某些方式下内在地互相排斥时，才会出现该定义的例外。
应该理解的是，虽然上述实施例中的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，其可以以其他的顺序执行。而且，图中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，其执行顺序也不必然是依次进行，而是可以与其他步骤或者其他步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或对其中部分或全部技术特征进行等同替换；而这些修改或替换，并不使相 应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (23)

  1. 一种数据传输方法，其中，应用于终端设备，包括：
    确定参考信号强度；
    若所述参考信号强度大于或等于预设门限值，且待发送的上行数据符合条件，则采用2步-随机接入过程发送所述上行数据。
  2. 根据权利要求1所述的方法，其中，还包括：
    若所述参考信号强度小于所述预设门限值，或者所述上行数据不符合条件，则采用4步-随机接入过程发送所述上行数据。
  3. 根据权利要求1所述的方法，其中，所述上行数据符合条件，包括以下至少一种：
    所述上行数据对应的业务的QCI属于预设类型集合，所述预设类型集合包括至少一个QCI。
  4. 根据权利要求3所述的方法，其中，还包括：
    接收所述预设类型集合。
  5. 根据权利要求4所述的方法，其中，所述预设类型集合包含在RRC消息中或系统广播消息中。
  6. 根据权利要求1所述的方法，其中，还包括：
    接收所述预设门限值，其中，所述预设门限值包含在RRC消息中或系统广播消息。
  7. 根据权利要求1所述的方法，其中，所述参考信号强度为RSRP或者RSRQ。
  8. 根据权利要求1至7中任一项所述的方法，其中，还包括：
    若接收到禁止指示信息，则采用4步-随机接入过程发送所述上行数据。
  9. 根据权利要求8所述的方法，其中，所述禁止指示信息包含在如下信息中的至少一种：小区广播信息、物理层信令、媒体访问控制层控制元素或RRC消息。
  10. 根据权利要求8所述的方法，其中，所述禁止指示信息还包括预设禁止时间段，所述方法还包括：
    若接收到禁止指示信息，且在所述预设禁止时间段内，则采用4步-随机接入过程发送所述上行数据。
  11. 一种数据传输方法，其中，应用于网络设备，包括：
    接收终端设备采用2步-随机接入过程发送的上行数据，所述上行数据为所述终端设备在参考信号强度大于或等于预设门限值且所述上行数据符合条件时发送的。
  12. 根据权利要求11所述的方法，其中，还包括：
    向所述终端设备发送禁止指示信息。
  13. 根据权利要求12所述的方法，其中，还包括：
    接收所述终端设备采用4步-随机接入过程发送的上行数据，所述上行数据为所述终端设备在参考信号强度小于所述预设门限值、或者所述上行数据不符合条件、或者接收到禁止指示信息时发送的。
  14. 根据权利要求12所述的方法，其中，所述禁止指示信息还包括预设禁止时间段，所述方法还包括：
    接收所述终端设备在接收到禁止指示信息且在所述预设禁止时间段内采用4步-随机接入过程发送的上行数据。
  15. 根据权利要求11所述的方法，其中，所述上行数据符合条件，包括以下至少一种：
    所述上行数据对应的业务的QCI属于预设类型集合，所述预设类型集合包括至少一个QCI。
  16. 根据权利要求15所述的方法，其中，还包括：
    向所述终端设备发送所述预设类型集合。
  17. 根据权利要求16所述的方法，其中，所述预设类型集合包含在RRC消息中或系统广播消息中。
  18. 根据权利要求11所述的方法，其中，还包括：
    向所述终端设备发送所述预设门限值，其中，所述预设门限值包含在RRC消息中或系统广播消息。
  19. 根据权利要求12所述的方法，其中，所述禁止指示信息包含在如下信息中的至少一种：小区广播信息、物理层信令、媒体访问控制层控制元素或RRC消息。
  20. 根据权利要求11所述的方法，其中，所述参考信号强度为RSRP或者RSRQ。
  21. 一种终端设备，其中，包括：
    处理器、存储器；
    所述存储器存储计算机执行指令；
    所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执行如权利要求1所述的数据传输方法。
  22. 一种网络设备，其中，包括：
    处理器、存储器；
    所述存储器存储计算机执行指令；
    所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执 行如权利要求11所述的数据传输方法。
  23. 一种计算机可读存储介质，其中，所述计算机可读存储介质中存储有计算机执行指令，当所述计算机执行指令被处理器执行时用于实现如权利要求1或11所述的数据传输方法。
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