Data transmission method and device, storage medium and base station

A data transmission method and data technology, applied in the field of communication, can solve problems such as data loss, affecting user experience, and inability to accurately know whether a source base station has not transmitted data packets to UE, so as to improve user experience and avoid data packet loss Effect

Inactive Publication Date: 2019-11-29
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0005] However, the above method can only be used for scenarios where the data flow mapping does not change during switching
If the data flow mapping changes during handover, for the data flow mapped to the new bearer, the target base station cannot accurately know whether the source base station has any data packets that have not been transmitted to the UE before the handover, which may cause data loss and affect user experience

Method used

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  • Data transmission method and device, storage medium and base station
  • Data transmission method and device, storage medium and base station
  • Data transmission method and device, storage medium and base station

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Embodiment Construction

[0049] As described in the background, the above methods in the prior art can only be used for the scenario where the data flow mapping does not change during switching. If the data flow mapping changes during handover, for the data flow mapped to the new bearer, the target base station cannot accurately know whether the source base station has any data packets that have not been transmitted to the UE before the handover, which may cause data loss and affect user experience .

[0050] The technical solution of the present invention notifies the user equipment of the data flow information of the data packet that has not been successfully transmitted, so that the user equipment can generate a status report for the data flow and send it to the target base station; thus, the target base station after handover can know The state of the user equipment actually receiving the data packets can accurately send the data packets not received by the user equipment to the user equipment in ...

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Abstract

The invention discloses a data transmission method and device, a storage medium and a base station, and the method comprises the steps: obtaining a second mapping relation between a data flow before switching and a data radio bearer when a switching request is received; after a switching completion signaling sent by the user equipment is received, receiving a status report of an unsuccessfully transmitted data packet sent by the user equipment; and determining a receiving state of the unsuccessfully transmitted data packet according to a first mapping relationship between the switched data stream and a data radio bearer, the second mapping relationship and the state report. According to the technical scheme, lossless transmission of data during switching can be realized.

Description

technical field [0001] This application is a divisional application of a patent application with an application date of March 23, 2017, an application number of 201710178216.0, and an invention title of data transmission method, device and user equipment. [0002] The present invention relates to the technical field of communications, in particular to a data transmission method and device, a storage medium, and a base station. Background technique [0003] In the fifth-generation mobile communication technology (5th-Generation, 5G), in order to realize the separation of the control plane and the user plane, the service data packet will contain the service quality (Quality of Service, QoS) information of the service. For the downlink, after receiving the data packet sent by the core network, the base station adopts an appropriate scheduling policy to schedule transmission resources according to the QoS information contained therein, so as to send the data packet to the user e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/02H04W36/08
CPCH04W36/023H04W36/08
Inventor 邓云
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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