MAC protocol data transmission method for TD-LTE

A protocol data unit and service data unit technology, which is applied in the field of MAC protocol data transmission, can solve the problems of resource waste and underutilized status PDU, etc., and achieve the effect of maximizing resource utilization

Active Publication Date: 2016-12-07
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing MAC protocols do not make full use of the status PDU in RLCAM mode, resulting in waste of resources

Method used

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  • MAC protocol data transmission method for TD-LTE
  • MAC protocol data transmission method for TD-LTE
  • MAC protocol data transmission method for TD-LTE

Examples

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Embodiment Construction

[0013] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

[0014] Such as figure 1 A MAC protocol data unit (PDU) shown includes a MAC header, 0 or more MAC service data units (MAC SDUs), 0 or more MAC control elements, and possibly other padding.

[0015] MAC PDU is a byte-aligned bit string (that is, a multiple of 8bit) in length, and the bit string is represented in the form of a table, where the most significant bit is located at the leftmost of the first row of the table, and the least significant bit is located at the last row of the table On the far right, usually, bitstrings are read line by line from left to right. The bit sequence of each parameter field in the MAC PDU is to place the first most significant bit on the far left and the last least signific...

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PUM

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Abstract

The invention provides an MAC protocol data unit for TD-LTE. The MAC protocol data unit comprises an MAC head, an MAC service data unit and an MAC control unit, wherein the MAC head comprises a plurality of MAC sub-heads; in the plurality of MAC sub-heads, each of the other MAC sub-heads except the last MAC sub-head comprises 6 head fields R / R / E / LCID / F / L; an extension field E1 of 1bit is arranged behind the head field F of each MAC sub-head; if the extension fields E1 are set to be 1, at least another group of fields F / E1 / LI is arranged behind each of the extension fields E1; and if the extension fields E1 are set to be 0, an MAC service data unit is behind a byte behind each of the extension fields E1. The MAC protocol data unit for TD-LTE can be used for extending state PDU sub-heads under an RLC AM mode so as to achieve the maximization of resource utilization.

Description

technical field [0001] The invention relates to a MAC protocol data transmission method for TD-LTE. Background technique [0002] LTE defines a pure packet switching network, adopts a flat, all-IP network structure, minimizes the number of network elements, and optimizes the protocol level. The protocol structure of its air interface has layer one: physical layer; layer two: data link layer; layer three: network layer. And for layer 2, the data link layer is divided into four sublayers: MAC sublayer; RLC sublayer; PDCP sublayer; BMC sublayer. The RLC sublayer mainly completes receiving or distributing RLC SDUs from the upper layer, and sending or receiving RLC PDUs to or from the peer RLC entity through the lower layer. In order to complete the transmission of different data, the RLC entity configures three modes: Transparent Mode (Transparent Mode, TM), Unacknowledged Mode (Unacknowledged Mode, UM), and Acknowledged Mode (Acknowledged Mode, AM). Among them, the AM entity...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L29/06
CPCH04L1/0008H04L69/22Y02D30/50
Inventor 韩冷孙霞张毅李铮
Owner CHONGQING UNIV OF POSTS & TELECOMM
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