Radio bearer repeat transmission processing method and device

A technology of repeated transmission and wireless bearer, which is applied in the direction of transmission system, wireless communication, digital transmission system, etc., and can solve problems such as uncontrollable repeated transmission mechanism

Active Publication Date: 2017-10-10
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0007] The present invention provides a method and device for processing repeated transmission of wireless bea

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  • Radio bearer repeat transmission processing method and device
  • Radio bearer repeat transmission processing method and device
  • Radio bearer repeat transmission processing method and device

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Embodiment Construction

[0066] Repeated transmission is to ensure data reliability. If all data is transmitted repeatedly, it will cause a great waste of wireless resources. However, there is no repeated transmission control mechanism at present. Therefore, an effective duplicate transmission control mechanism needs to be introduced.

[0067] Based on this, an embodiment of the present invention provides a repeated transmission control scheme. In this scheme, the sending end autonomously activates or deactivates repeated transmission of PDCP PDUs through the feedback of the reception status of the underlying data packets. Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0068] In the explanation process, the implementation of the sending end will be mainly explained, and then the downlink data transmission of the sending end as the base station and the receiving end as the terminal, and the uplink data transmission example of the s...

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Abstract

The invention discloses a radio bearer repeat transmission processing method and device. The method comprises the steps that a sending terminal determines a receiving condition of an underlying data package; and the sending terminal activates or deactivates repeat transmission of a protocol data unit of a packet data convergence protocol according to the receiving condition. Through adoption of the radio bearer repeat transmission processing method and device, the sending terminal feeds back according to the receiving condition of the underlying data package, and automatically activates or deactivates repeat transmission of the protocol data unit of the packet data convergence protocol. A manner that an underlying layer in the sending terminal informs the packet data convergence protocol layer of interaction is adopted, so that repeat transmission and deactivation of repeat transmission are realized rapidly and efficiently, high reliability due to repeat transmission is ensured, further, the radio resources are used more efficiently, and resource waste is prevented.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for processing repeated transmission of radio bearers. Background technique [0002] The 5G NR (next generation Radio) system mainly supports three types of services: [0003] eMBB (enhanced Mobile Broadband, enhanced broadband communication), mMTC (massive MachineType Communications, a large number of machine type communications), URLLC (Ultra-Reliable and Low Latency Communications, high reliability and low latency communications). [0004] For URLLC, due to its relatively high requirements on delay and reliability, a solution currently proposed by 3GPP is to introduce a duplication (repetition) mechanism, that is, to transmit the same PDCP (Packet Data Convergence Protocol, packet Data Aggregation Protocol) layer PDU (Protocol Data Unit, Protocol Data Unit), improves transmission reliability and reduces transmission delay through mul...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/18H04W72/12
CPCH04L1/0023H04L1/1806H04W72/54H04W72/20
Inventor 谌丽刘佳敏皮埃尔
Owner DATANG MOBILE COMM EQUIP CO LTD
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