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Uplink enhanced data transmission method and device and user equipment

A technology for enhancing data and transmission methods, applied in the field of communication, can solve problems such as RLC Reset, waste of resources, affecting UE data transmission, etc., and achieve the effect of avoiding RLC reset and waste of air interface resources

Active Publication Date: 2019-05-07
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, since the network side does not collect all the segments of the segmented PDU in consecutive TTIs, according to the MAC-I PDU packet protocol, the network side will discard the segmented PDUs that have been correctly received, and the UE must also The unsent segmented PDU is discarded, and the PDU must be resent, which will cause unnecessary waste of resources. The flow cha

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  • Uplink enhanced data transmission method and device and user equipment
  • Uplink enhanced data transmission method and device and user equipment
  • Uplink enhanced data transmission method and device and user equipment

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] The present invention provides an uplink enhanced data transmission method, such as image 3 As shown, the method includes:

[0028] S11. If only part of the segmented PDU of the RLC PDU is sent to the network side device in the current TTI, after receiving the status PDU containing the retransmission indication sent by the network si...

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Abstract

The invention provides an uplink enhanced data transmission method, an uplink enhanced data transmission device and user equipment. The method comprises the following steps: if only a partial segmentPDU of an RLC PDU is sent to a network side device at a current TTI, after a state PDU which is sent by the network side device and contains a retransmission indication is received, the remaining segment PDUs of the RLC PDU is sent to the network side device at a next TTI; And a successfully received message sent by the network side device is received. According to the invention, the network sideequipment and the user equipment can be prevented from discarding correct data, so that RLC reset and waste of air interface resources are avoided.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an uplink enhanced data transmission method, device and user equipment. Background technique [0002] The LTE wireless access system is divided into three layers: the first layer (L1) is the physical layer (PHY, Physical), the second layer (L2) is the media access control sublayer (Media Access Control, MAC), radio link control The sublayer (Radio LinkControl, RLC) and the packet data convergence protocol sublayer (Packet Data Convergence Protocol, PDCP), the third layer (L3) is the radio resource control layer (Radio Resource Control, RRC). [0003] The RLC layer is located above the MAC layer and is a part of L2, providing segmentation (transmitter) / reassembly (receiver) and retransmission services for user and control data. RLC PDU (Protocol Data Unit, protocol data unit) is the protocol data unit of the RLC layer. The L2 uplink enhancement technology can set t...

Claims

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Application Information

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IPC IPC(8): H04W28/06
Inventor 贺元才夏少华蒋海芳
Owner SPREADTRUM COMM (SHANGHAI) CO LTD