Data receiving, transmitting and processing method and equipment for data link layer

A technology of data link layer and processing equipment, applied in the field of communication
CN101932128BActive Publication Date: 2013-03-13DATANG MOBILE COMM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
DATANG MOBILE COMM EQUIP CO LTD
Publication Date
2013-03-13

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Abstract

The invention discloses a data receiving, transmitting and processing method and data receiving, transmitting and processing equipment for a data link layer. The method comprises the following steps of: performing hearder compression on a packet data convergence protocol layer service data unit in a packet data convergence protocol layer and cascading the packet data convergence protocol layer service data unit; encrypting the cascaded packet data convergence protocol layer service data unit to form a packet data convergence protocol layer packet data unit and transmitting the packet data convergence protocol layer packet data unit to a radio link control layer; and after a transport format indication transmitted by a media access control layer is received, processing a radio link control layer service data unit in the radio link control layer to form a radio link control layer packet data unit and transmitting the radio link control layer packet data unit. Requirements on high-speed service transmission as well as high transmission speed and processing complexity of a long term evolution upgrade system can be met.
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Description

technical field

[0001] The present invention relates to communication technology, in particular to a data link layer data sending and receiving processing method and equipment. Background technique

[0002] figure 1 It is a structural diagram of the uplink data link layer (Layer 2, layer 2). As shown in the figure, in the LTE (Long Term Evolution, long-term evolution) system, the user data packet reaches the PDCP (Packet Data Convergence Protocol, packet data convergence protocol) layer , after PDCP performs operations such as header compression, encryption, and header structure addition, a PDCP PDU (Packet Data Unit, packet data unit) is formed and sent to the RLC (Radio Link Control, radio link control) layer. The RLC layer further performs appropriate concatenation, segmentation (segmentation) on these RLC SDUs (Service Data Unit, business data unit) according to the requirements of the specific transmission format of the MAC layer, and adds a header structure to form an...

Claims

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