WO2017118012A1 - Procédé, appareil, et système de transmission de données - Google Patents

Procédé, appareil, et système de transmission de données Download PDF

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Publication number
WO2017118012A1
WO2017118012A1 PCT/CN2016/094009 CN2016094009W WO2017118012A1 WO 2017118012 A1 WO2017118012 A1 WO 2017118012A1 CN 2016094009 W CN2016094009 W CN 2016094009W WO 2017118012 A1 WO2017118012 A1 WO 2017118012A1
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WO
WIPO (PCT)
Prior art keywords
wireless connection
establishment
terminal
side device
network side
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PCT/CN2016/094009
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English (en)
Chinese (zh)
Inventor
余媛芳
杜忠达
沙秀斌
戴谦
陆婷
Original Assignee
中兴通讯股份有限公司
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Publication of WO2017118012A1 publication Critical patent/WO2017118012A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment

Definitions

  • the present invention relates to the field of communications, and in particular to a data transmission method, apparatus and system.
  • M2M (Machine to Machine) communication is an important subject of the fifth generation of mobile communication technology (5G), and an important application field for wireless communication in the future.
  • 5G mobile communication technology
  • NB-IoT Narrow Band-Internet of Things
  • Low-cost terminals provide low-throughput wireless communication services.
  • the NB-IoT system mainly considers scenarios supporting ultra-low bandwidth, small data packets, deep coverage, delay tolerance, and long standby time; currently, based on Long Term Evolution (LTE) technology, the NB-IoT system is built and targeted.
  • LTE Long Term Evolution
  • the NB-IoT scenario and service features optimize the existing LTE technology system.
  • the NB-IoT system generally inherits the LTE architecture, both the air interface protocol stack and the core network will have different degrees of change: for example, because the supported service types are relatively simple, the air interface protocol stack is in media access control (MAC, Media).
  • MAC media access control
  • the Access Control layer will be greatly simplified; in order to meet the requirements of deep coverage, data transmission needs to consider more reliable mechanisms, such as more repeated transmissions to ensure reception, etc.; in order to meet the requirements of long standby time (10 years) Above), the processing of the wireless connection (connection establishment, connection reconfiguration, etc.) is simplified.
  • FIG. 1 is a schematic flowchart of a wireless connection re-establishment of an existing LTE.
  • step 101 The terminal sends a radio connection re-establishment request message to the base station;
  • Step 102 The base station sends a radio connection re-establishment message to the terminal;
  • Step 103 The terminal sends a radio connection re-establishment completion message to the base station;
  • Step 104 The base station sends a radio connection reconfiguration message to the terminal;
  • Step 105 The terminal sends a radio connection reconfiguration complete message to the base station.
  • the radio connection re-establishment operation is used to recover the radio signaling bearer 1 (SRB1, Signaling Radio Bearer 1), and the security is severe. Live and configuration of the primary cell; in the existing LTE wireless connection re-establishment operation, the signaling radio bearer can only be restored first. In order to recover the data radio bearer, it must be reconfigured through the wireless connection after the wireless connection re-establishment operation.
  • the process is to restore the data radio bearer; the above specific content can refer to the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) TS36.331 protocol.
  • the air interface signaling of the wireless link (for example, completion of wireless connection establishment, completion of wireless connection re-establishment, etc.) can be transmitted through SRB1.
  • Small data transmission wireless communication systems typified by NB-IoT systems (for example, the system bandwidth required by these systems may be different, some bandwidths are only 200k, some may reach 1.4M, etc., but have similar business requirements), although It is desirable to simplify the signaling process of the wireless connection, but the re-establishment process of the wireless connection is considered to be beneficial, and the scenario triggering the reconnection of the wireless connection is still present in the small data transmission wireless communication system represented by NB-IoT. .
  • FIG. 2a is a schematic flowchart of reusing the existing LTE wireless connection re-establishment operation to resume data transmission.
  • steps 201 to 203 are the same as steps 101 to 103.
  • the power consumption of the terminal when transmitting the message is much greater than when receiving and standby, therefore, the transmission of the uplink information transmission message increases the terminal. Power consumption, to some extent reduce the standby time of the terminal.
  • FIG. 2b is a schematic diagram of a process for reusing the wireless connection re-establishment operation of the existing LTE to recover data transmission through the data radio bearer.
  • the steps S201 to S203 are different from the steps S201 to S203 in FIG. 2a.
  • the data radio bearer is recovered through the radio connection reconfiguration process, and the signaling interaction causes the terminal power consumption to increase and the delay of recovering the data transmission becomes longer, affecting Terminal standby time and business performance. Therefore, it is necessary to consider the recovery process of optimizing the radio bearer.
  • the radio link re-establishment operation discards the data that the signaling radio bearer SRB has not transmitted, for example, the air interface packet data convergence layer PDCP module involved in data transmission will Discarding data that has not been transmitted on the SRB, this processing mode will cause the terminal to take longer to receive data even if the radio bearer is restored, resulting in increased terminal power consumption. Therefore, it is necessary to consider the recovery process of optimizing the radio bearer.
  • Embodiments of the present invention provide a data transmission method, apparatus, and system, which can re-establish fast recovery data transmission through a wireless connection.
  • a data transmission method including: a terminal transmitting a wireless connection re-establishment request message to a network side device; and the terminal re-establishing a message according to a wireless connection received from the network side device, Sending a wireless connection re-establishment completion message carrying the uplink data to the network side device.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the reason includes: the radio link fails, and the radio link control RLC maximum retransmission times is reached.
  • the wireless connection re-establishment message carries a radio signaling bearer SRB1 configuration parameter.
  • a data transmission method including: a network side device receiving a wireless connection re-establishment request message sent by a terminal; and the network side device sending a wireless connection re-establishment message to the terminal; The network side device receives a wireless connection re-establishment complete message carrying the uplink data that is sent by the terminal according to the wireless connection re-establishment message.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the network side device further includes the following at least one step: when the wireless connection When the re-establishment request message carries the small data transmission indication information, the network side device configures a logical channel configuration parameter for the terminal according to the small data transmission indication information carried in the wireless connection re-establishment request message; when the wireless connection is re-established please When the message does not carry the small data transmission indication information, the network side device configures the logical channel configuration parameter for the terminal according to its own condition; when the wireless connection re-establishment request message carries the reason for triggering the current wireless connection re-establishment request The network side device configures a radio link control RLC configuration parameter according to the reason for triggering the current radio connection re-establishment request carried in the radio connection re-establishment request message; when the radio connection
  • the wireless connection re-establishment message carries a radio signaling bearer SRB1 configuration parameter.
  • the method further includes: when the network side device receives the wireless connection establishment request message sent by the terminal, the network side device sends a wireless connection establishment message carrying the wireless signaling bearer SRB1 configuration parameter to the terminal.
  • the SRB1 configuration parameter includes: an SRB1 configuration parameter of the first SRB1 and/or an SRB1 configuration parameter of the second SRB1, where the first SRB1 is used for transmitting signaling, and the second SRB1 is used for transmitting data.
  • the SRB1 configuration parameter includes at least one of the following: an SRB1 identifier, a logical channel configuration parameter, and a radio link control RLC configuration parameter.
  • the logical channel configuration parameter includes at least one of the following: a priority bit rate, a token bucket size time.
  • the RLC configuration parameter includes an RLC maximum retransmission number that is greater than 32.
  • a data transmission apparatus which is applied to a terminal, and includes: a first sending module configured to send a wireless connection re-establishment request message to a network side device; and a second sending module configured to And transmitting, according to the wireless connection re-establishment message received from the network side device, a wireless connection re-establishment completion message carrying the uplink data to the network side device.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the wireless connection re-establishment message carries a radio signaling bearer SRB1 configuration parameter.
  • a data transmission apparatus which is applied to a network side device, and includes: a first receiving module configured to receive a wireless connection re-establishment request message sent by the terminal; and a third sending module, configured Re-establishing a message to the terminal for sending a wireless connection; the second receiving module is configured to receive a wireless connection re-establishment complete message carrying the uplink data sent by the terminal according to the wireless connection re-establishment message.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the wireless connection re-establishment message carries a radio signaling bearer SRB1 configuration parameter.
  • a data transmission method including: a terminal sending a wireless connection re-establishment request message to a network side device; and the network side device transmitting a request message according to the wireless connection, sending a wireless The connection re-establishment message is sent to the terminal; the terminal re-establishes a message according to the wireless connection, and sends a wireless connection re-establishment completion message carrying the uplink data to the network side device.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the wireless connection re-establishment message carries a radio signaling bearer SRB1 configuration parameter.
  • a data transmission system includes: a terminal and a network side device; the terminal configured to send a wireless connection re-establishment request message to a network side device; And configured to send a wireless connection re-establishment message to the terminal according to the wireless connection re-establishment request message, where the terminal is further configured to send a wireless connection re-establishment complete message carrying the uplink data according to the wireless connection re-establishment message To the network side device.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the wireless connection re-establishment message carries a radio signaling bearer SRB1 configuration parameter.
  • a data transmission method including: a terminal sending a wireless connection re-establishment request message to a network side device; after receiving the wireless connection recovery message sent by the network side device, the terminal receives the wireless connection recovery message Perform an operation to restore the wireless connection.
  • the terminal after the terminal resumes the operation of restoring the wireless connection according to the received wireless connection recovery message, the terminal sends a wireless connection recovery complete message to the network side device.
  • the performing, by the terminal, the operation of restoring the wireless connection includes at least one of: resetting a timer T301; re-establishing a lower layer entity, where the lower layer entity includes an RLC and/or a PDCP entity; and recovering the radio bearer, where
  • the radio bearer includes a signaling radio bearer and/or a data radio bearer; the reactivation access layer security, wherein the access layer security includes at least one of the following: integrity protection and encryption on the signaling radio bearer; Encryption on the radio bearer.
  • the performing, by the terminal, the PDCP re-establishment operation includes: when the PDCP layer of the terminal receives the PDCP re-establishment indication, the terminal performs a PDCP re-establishment process of the signaling radio bearer.
  • the re-establishment process performed by the terminal includes at least one of the following: for the data sent by the terminal, when the PDCP layer receives the PDCP re-establishment indication, the PDCP re-establishment process of the terminal includes at least one of the following: Retransmitting a data packet that has not been successfully transmitted, and performing security protection operations on the data packet; wherein the security protection operation includes encryption and integrity protection; and when the PDCP layer receives the PDCP re-establishment indication for the data received by the terminal
  • the PDCP re-establishment process of the terminal includes at least one of: processing a data packet received from a lower layer, and performing a security protection operation on the data packet; wherein the security protection operation includes decryption and integrity protection verification.
  • a data transmission method including: a terminal sending a wireless connection re-establishment request message to a network side device; after receiving the wireless connection re-establishment message sent by the network side device, the terminal receives the wireless connection re-establishment message , perform the operation of reestablishing the wireless connection.
  • the performing, by the terminal, the operation of reestablishing the wireless connection at least includes: performing, by the terminal, an operation of re-connecting the PDCP.
  • the performing, by the terminal, the operation of performing PDCP reconnection includes: at least: PDCP of the terminal
  • the layer performs the PDCP re-establishment process of the signaling radio bearer.
  • the re-establishment process includes at least one of the following: for the data sent by the terminal, when the PDCP layer receives the PDCP re-establishment indication, the PDCP re-establishment process of the terminal includes at least one of the following: The data packet is retransmitted and the security protection operation is performed on the data packet; wherein the security protection operation includes encryption and integrity protection; and for the data received by the terminal, when the PDCP layer receives the PDCP re-establishment indication, the terminal
  • the PDCP re-establishment process includes at least one of: processing a data packet received from a lower layer, and performing a security protection operation on the data packet; wherein the security protection operation includes decryption and integrity protection verification.
  • a computer readable storage medium storing computer executable instructions that, when executed, implement the above-described data transmission method on the terminal side.
  • a computer readable storage medium storing computer executable instructions that, when executed, implement the above-described data transmission method on the network side.
  • the terminal when the terminal performs the wireless connection re-establishment operation, if there is uplink data to be sent, the terminal transmits the uplink data to the network side device through the wireless connection re-establishment completion message. In this way, re-establishing fast recovery data transmission over a wireless connection is achieved.
  • the network side device configures the logical channel configuration parameter and the RLC configuration parameter for the terminal according to the small data transmission indication information. In this way, while the data connection is restored through the wireless connection re-establishment operation, the fairness of the resource usage is ensured, thereby achieving the optimal performance of the entire network.
  • FIG. 1 is a schematic flowchart of a wireless connection re-establishment of an existing LTE
  • 2a is a schematic flowchart of reusing the existing LTE wireless connection re-establishment operation to resume data transmission;
  • 2b is a schematic diagram of a process of restoring data transmission by using a data radio bearer by reusing the existing LTE wireless connection re-establishment operation;
  • FIG. 3a is a flowchart 1 of a data transmission method according to an embodiment of the present invention.
  • FIG. 3b is a second flowchart of a data transmission method according to an embodiment of the present invention.
  • 3c is a flowchart 3 of a data transmission method according to an embodiment of the present invention.
  • FIG. 4 is another flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 5a is a flowchart 1 of a data transmission method according to Embodiment 1 of the present invention.
  • FIG. 5b is a second flowchart of a data transmission method according to Embodiment 1 of the present invention.
  • FIG. 6 is a flowchart of a data transmission method according to Embodiment 2 of the present invention.
  • FIG. 7 is a schematic diagram of a data transmission system according to an embodiment of the present invention. .
  • FIG. 3a is a flowchart 1 of a data transmission method according to an embodiment of the present invention. As shown in FIG. 3a, the data transmission method provided in this embodiment includes the following steps:
  • Step 301a The terminal sends a wireless connection re-establishment request message to the network side device.
  • Step 302 The terminal re-establishes a message according to the wireless connection received from the network side device, and sends a wireless connection re-establishment completion message carrying the uplink data to the network side device.
  • the wireless connection re-establishment request message carries the small data transmission indication information and/or the reason for triggering the current wireless connection re-establishment request.
  • the reason includes: the radio link fails to reach a maximum number of retransmissions of the radio link control (RLC).
  • RLC radio link control
  • the wireless connection re-establishment message carries a radio signaling bearer 1 (SRB1, Signaling Radio Bearer 1) Configuration parameters.
  • SRB1 Radio Signaling Bearer 1
  • FIG. 3b is a second flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 3b, the steps of the method include:
  • Step S301b The terminal sends a wireless connection re-establishment request message to the network side device;
  • Step S302b After receiving the wireless connection recovery message sent by the network side device, the terminal performs an operation of restoring the wireless connection.
  • the terminal after the terminal resumes the operation of restoring the wireless connection according to the received wireless connection recovery message, the terminal sends a wireless connection recovery complete message to the network side device.
  • the operation of the terminal to perform the restoration of the wireless connection includes at least one of the following: resetting the timer T301; re-establishing the lower layer entity, where the lower layer entity includes the RLC and/or the PDCP (Packet Data Convergence Protocol) entity Recovering the radio bearer, wherein the radio bearer comprises a signaling radio bearer and/or a data radio bearer; re-enabling the access layer security, wherein the access layer security comprises at least one of the following: integrity protection on the signalling radio bearer Encryption; encryption on the data radio bearer.
  • PDCP Packet Data Convergence Protocol
  • the performing, by the terminal, the PDCP re-establishment operation includes: when the PDCP layer of the terminal receives the PDCP re-establishment indication, the terminal performs a PDCP re-establishment process of the signaling radio bearer.
  • the re-establishment process performed by the terminal includes: when the PDCP layer receives the PDCP re-establishment indication, the PDCP re-establishment process of the terminal includes at least one of the following: loading the data packet that is not successfully sent.
  • the security protection operation is performed on the data packet.
  • the security protection operation includes encryption and integrity protection.
  • the terminal performs the PDCP re-establishment process to include at least one of the following: The data packets received from the lower layer are processed and the data packets are secured.
  • the security protection operations include decryption and integrity protection verification.
  • FIG. 3c is a third flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 3c, the steps of the method include:
  • Step S301c The terminal sends a wireless connection re-establishment request message to the network side device.
  • Step S302c After receiving the wireless connection re-establishment message sent by the network side device, the terminal performs an operation of reestablishing the wireless connection.
  • the performing, by the terminal, the operation of reestablishing the wireless connection includes at least the operation of the terminal performing the PDCP reconnection.
  • the performing, by the terminal, the PDCP reconnection process includes: performing a PDCP re-establishment process of the signaling radio bearer when the PDCP layer of the terminal receives the PDCP re-establishment indication.
  • the re-establishment process includes at least one of the following: for the data sent by the terminal, when the PDCP layer receives the PDCP re-establishment indication, the terminal performs the PDCP re-establishment process to include at least one of the following: performing the data packet that is not successfully sent.
  • the security protection operation includes encryption and integrity protection
  • the terminal performs the PDCP re-establishment process including at least one of the following : Processing packets received from the lower layer and performing security protection operations on the data packets; wherein the security protection operations include decryption and integrity protection verification.
  • FIG. 4 is another flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 4, the data transmission method provided in this embodiment includes the following steps:
  • Step 401 The network side device receives a wireless connection re-establishment request message sent by the terminal.
  • Step 402 The network side device sends a wireless connection re-establishment message to the terminal.
  • Step 403 The network side device receives the wireless connection re-establishment completion message carrying the uplink data sent by the terminal according to the wireless connection re-establishment message.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the wireless connection re-establishment message carries an SRB1 configuration parameter.
  • the SRB1 configuration parameter includes: an SRB1 configuration parameter of the first SRB1 and/or an SRB1 configuration parameter of the second SRB1; the first SRB1 is used for transmitting signaling, and the signaling may include a non-access bearer. Signaling (eg, attach, re-attach, etc.), and/or signaling of the access bearer (eg, wireless connection setup completion, wireless connection release, capability query, etc.)
  • the second SRB1 is used to transmit data.
  • the SRB1 configuration parameter includes at least one of the following: an SRB1 identifier, a logical channel configuration parameter, and an RLC configuration parameter.
  • the SRB1 identifier may be used to identify the first SRB1 and the second SRB1.
  • the SRB1 configuration parameter of the first SRB1 includes at least one of the following: an SRB1 identifier of the first SRB1, a logical channel configuration parameter of the first SRB1, and a first SRB1.
  • the logical channel configuration parameter includes at least one of the following: a priority bit rate, and a token bucket size time.
  • the priority bit rate is a minimum rate requirement guarantee for each logical channel, and is configured to be infinite, meaning that a logical channel lower than its priority is considered only when the resources of the logical channel are satisfied.
  • SRB1 since SRB1 generally transmits control signaling, it has high requirements on delay and reliability. Therefore, SRB1 has the highest priority, and resource configuration will be preferentially guaranteed. However, if SRB1 is used, Data transmission, if the highest priority is still used for resource configuration, since the general data packet requires more resources than the control signaling, it may affect the reliability of true control signaling transmission and the fairness of resource usage. .
  • the priority bit rate of the logical channel of the second SRB1 is configured to be infinite (ie, the logical channel configuration parameter of the second SRB1 includes the value not being infinite. Priority bit rate) to avoid the impact of general data packets on true control signaling.
  • the RLC configuration parameter includes an RLC maximum retransmission number that is greater than 32.
  • step 401 before step 402, the method further includes at least one of the following steps:
  • the network side device configures the logical channel configuration parameter for the terminal according to the small data transmission indication information carried in the wireless connection re-establishment request message;
  • the network side device configures the logical channel configuration parameter for the terminal according to its own condition
  • the network-side device configures the RLC configuration parameter for the terminal according to the reason for triggering the current wireless connection re-establishment request carried in the wireless connection re-establishment request message;
  • the network-side device configures the RLC configuration parameter for the terminal according to the self-condition or the small data transmission indication information carried in the wireless connection re-establishment request message.
  • the method further includes: when the network side device receives the wireless connection establishment request message sent by the terminal, the network side device sends a wireless connection establishment message carrying the SRB1 configuration parameter to the terminal.
  • the specific content of the SRB1 configuration parameter is the same as that described above, and thus is not described herein.
  • the embodiment of the present invention further provides a data transmission method, including the following steps: the terminal sends a wireless connection re-establishment request message to the network side device; the network side device sends a wireless connection re-establishment message to the terminal according to the wireless connection re-establishment request message.
  • the terminal re-establishes a message according to the wireless connection, and sends a wireless connection re-establishment completion message carrying the uplink data to the network side device.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the wireless connection re-establishment message carries an SRB1 configuration parameter.
  • FIG. 5a is a flowchart of a data transmission method according to Embodiment 1 of the present invention.
  • the network side device is a base station.
  • the data transmission method provided in this embodiment includes the following steps:
  • Step 501a The terminal sends a radio connection re-establishment request message to the base station.
  • the terminal re-establishes the request message through the wireless connection to indicate that there is a small data transmission.
  • the wireless connection re-establishment request message carries small data transmission indication information to indicate that there is a small data transmission; or the small data transmission indication information carried by the wireless connection re-establishment message indicates that there is a small data transmission.
  • the terminal carries the reason for triggering the re-establishment operation of the wireless connection in the wireless connection re-establishment request message, where the reason may be: the radio link fails, and the maximum number of retransmissions of the RLC is reached.
  • Step 502a The base station receives the radio connection re-establishment request message, and sends a radio connection re-establishment message carrying the SRB1 configuration parameter to the terminal.
  • the SRB1 configuration parameter is encapsulated in a dedicated radio resource configuration parameter, and the dedicated radio resource configuration parameter further includes other parameters related to radio transmission.
  • the SRB1 configuration parameter includes a logical channel configuration parameter, where the logical channel configuration parameter includes one or a combination of the following: a priority bit rate, a token bucket size time.
  • the SRB1 configuration parameter includes an RLC configuration parameter, where the RLC configuration parameter includes an RLC maximum retransmission number that is greater than 32.
  • the base station configures a logical channel configuration parameter for the terminal according to the small data transmission indication information.
  • the base station configures the RLC configuration parameter for the terminal according to the wireless connection re-establishment failure reason.
  • Step 503a The terminal carries the uplink data to the base station by using a radio connection re-establishment completion message.
  • a small data wireless communication system typified by an NB-IoT system
  • the wireless connection re-establishment can be triggered.
  • the SRB1 is quickly restored by the RRC (Radio Resource Control) re-establishment process, that is, the connection layer (AS, Access Stratum) triggers the recovery of the connection.
  • RRC Radio Resource Control
  • the embodiment of the present invention can reduce the uplink message transmission, thereby reducing the power consumption of the terminal, increasing the standby time of the terminal to a certain extent, thereby achieving better terminal battery life.
  • FIG. 5b is a flowchart of a data transmission method according to Embodiment 1 of the present invention.
  • the network side device is a base station.
  • the data transmission method provided in this embodiment includes the following steps:
  • Step S501b a wireless connection re-establishment request
  • Step S502b the wireless connection is restored
  • Step S503b the wireless connection recovery is completed
  • Step S504b Data transmission.
  • FIG. 6 is a flowchart of a data transmission method according to Embodiment 2 of the present invention.
  • the wireless connection setup message may carry the SRB1 configuration parameter
  • the SRB1 configuration parameter includes: the first SRB1, in addition to the wireless connection re-establishment message carrying the SRB1 configuration parameter.
  • step 601 the terminal sends a wireless connection establishment request message to the base station, and optionally, the wireless connection establishment request message carries small data transmission indication information;
  • Step 602 The station sends a radio connection setup message carrying the SRB1 configuration parameter to the terminal.
  • Step 603 The terminal sends a radio connection setup complete message carrying the uplink data to the base station.
  • the specific content of the SRB1 configuration parameter is the same as that in the foregoing embodiment, and therefore will not be further described herein.
  • the embodiment of the present invention further provides a data transmission apparatus, which is applied to a terminal, and includes: a first sending module configured to send a wireless connection re-establishment request message to the network side device; and a second sending module configured to be based on the slave network side
  • the wireless connection re-establishment message received by the device sends a wireless connection re-establishment completion message carrying the uplink data to the network side device.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the wireless connection re-establishment message carries an SRB1 configuration parameter.
  • the embodiment of the present invention further provides a data transmission apparatus, which is applied to a network side device, and includes: a first receiving module configured to receive a wireless connection re-establishment request message sent by the terminal; and a third sending module configured to send a wireless connection And re-establishing the message to the terminal; the second receiving module is configured to receive, by the receiving terminal, the wireless connection re-establishment completion message that carries the uplink data according to the wireless connection re-establishment message.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the wireless connection re-establishment message carries an SRB1 configuration parameter.
  • the embodiment of the present invention further provides a data transmission system, including: a terminal and a network side device; the terminal is configured to send a wireless connection re-establishment request message to the network side device; and the network side device is configured to be heavy according to the wireless connection
  • the request message is sent, and the wireless connection re-establishment message is sent to the terminal.
  • the terminal is further configured to re-establish the message according to the wireless connection, and send a wireless connection re-establishment completion message carrying the uplink data to the network side device.
  • the wireless connection re-establishment request message carries small data transmission indication information and/or a reason for triggering the current wireless connection re-establishment request.
  • the wireless connection re-establishment message carries an SRB1 configuration parameter.
  • FIG. 7 is a schematic diagram of a data transmission system according to an embodiment of the present invention.
  • the data transmission system provided in this embodiment includes a terminal and a network side device.
  • the terminal includes a first sending module and a second sending module
  • the network side device includes a first receiving module, a second receiving module, and a third sending module.
  • the first sending module sends a wireless connection re-establishment request message to the network side device
  • the first receiving module receives the wireless connection re-establishment request message
  • the third sending module sends a wireless connection according to the wireless connection re-establishment request message.
  • the second sending module the wireless connection re-establishment completion message carrying the uplink data
  • the second receiving module receiving the wireless connection re-establishment completion message carrying the uplink data.
  • the first sending module, the second sending module, and the third sending module are, for example, wireless communication components having a transmitting function
  • the first receiving module and the second receiving module are, for example, wireless communication components having a receiving function.
  • the terminal when the terminal performs the wireless connection re-establishment operation, the terminal re-establishes the completion message through the wireless connection to carry the uplink data to the network side device. In this way, re-establishing fast recovery data transmission over a wireless connection is achieved.
  • the embodiment of the present invention further provides a terminal, including: a first wireless communication unit and a second wireless communication unit, where the first wireless communication unit is connected to the second wireless communication unit, and the first wireless communication unit is configured to send a wireless connection re-establishment request message.
  • the second wireless communication unit is configured to receive a wireless connection re-establishment message from the network side device, and the first wireless communication unit is further configured to send a wireless connection re-establishment completion message carrying the uplink data to the network side device.
  • the first wireless communication unit is, for example, a wireless communication component having a transmitting function
  • the second wireless communication unit is, for example, a wireless communication component having a receiving function.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, where the computer-executable instructions are executed to implement the foregoing data transmission on the terminal side. method.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions are implemented to implement the data transmission method on the network side.
  • each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function.
  • the invention is not limited to any specific form of combination of hardware and software.
  • the terminal when the terminal performs the wireless connection re-establishment operation, if there is uplink data to be sent, the terminal transmits the uplink data to the network side device through the wireless connection re-establishment completion message. In this way, re-establishing fast recovery data transmission over a wireless connection is achieved.
  • the network side device configures the logical channel configuration parameter and the RLC configuration parameter for the terminal according to the small data transmission indication information. In this way, while the data connection is restored through the wireless connection re-establishment operation, the fairness of the resource usage is ensured, thereby achieving the optimal performance of the entire network.

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

Abstract

L'invention concerne un procédé, un appareil et un système de transmission de données. Le procédé comprend les étapes suivantes : un terminal envoie un message de demande de rétablissement de connexion sans fil à un appareil sur le côté réseau; et le terminal envoie un message d'accomplissement de rétablissement de connexion sans fil contenant des données de liaison montante à l'appareil sur le côté réseau en réponse à un message de rétablissement de connexion sans fil reçu de l'appareil sur le côté réseau. Le procédé, l'appareil et le système de transmission de données décrits dans la présente invention peuvent réaliser une récupération rapide de transmission de données via le rétablissement d'une connexion sans fil.
PCT/CN2016/094009 2016-01-07 2016-08-08 Procédé, appareil, et système de transmission de données WO2017118012A1 (fr)

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WO2019140619A1 (fr) * 2018-01-19 2019-07-25 Oppo广东移动通信有限公司 Procédé et dispositif d'indication d'informations, et support de stockage informatique
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