Packet multiplexing method in wireless communication system

A wireless communication system and data packet technology, applied in wireless communication, transmission system, digital transmission system, etc., can solve problems such as lack of solutions, and achieve the effect of simplicity, low head overhead, and high storage utilization

Inactive Publication Date: 2007-09-26
ZTE CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In the third-generation mobile communication long-term evolution system, the ARQ entity and the HARQ entity are located in the base station of the wireless access network, and the two-layer entities can know the real-time physical channel conditions in time, so the segmentation / concatenation / filling processing can be performed The transmission block size selected based on the real-time scheduling results, but there is still a lack of a relatively complete solution

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  • Packet multiplexing method in wireless communication system
  • Packet multiplexing method in wireless communication system
  • Packet multiplexing method in wireless communication system

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Embodiment Construction

[0030]Figure 1 is a diagram of the system structure and related entities of the present invention. The user plane protocol stack of the base station includes an automatic repeat request entity (ARQ entity), an ARQ buffer, a segmentation function entity, an ARQ sequence number mapping table, a scheduling entity, and a hybrid automatic repeat Transmission request entity (HARQ entity), HARQ buffer, HARQ sequence number mapping table and multiplexing function entity, all entities are located in the media access control layer. The ARQ sequence number mapping table may be part of the ARQ buffer, and the HARQ sequence number mapping table may be part of the HARQ buffer.

[0031] FIG. 2 is a schematic diagram of the ARQ sequence number mapping table, the HARQ sequence number mapping table and their associated relationships in this embodiment, reflecting the storage management method of the protocol data unit in the corresponding buffer.

[0032] As shown in the figure, the ARQ sequenc...

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Abstract

The data package multiplexing method for a wireless communication system with both ARQ and HARQ entity on BS media access control layer comprises: pre-defining the transmission block size, then: according to set scheduling algorithm, determining the user device with available wireless resource and service data in relative business PRI sequence for next TTI, and selecting corresponding transmission block size; for every user device, segment processing the service data unit according to selected size, and adding head message to generate ARQ protocol data unit; multiplexing the said ARQ unit, and adding head message to generate a HARQ protocol data unit. This invention supports length-variable protocol data unit.

Description

technical field [0001] The invention relates to the technical field of digital mobile communication, in particular to a method for multiplexing data packets in a wireless communication system. Background technique [0002] In the radio access network of the third-generation mobile communication system, the ARQ entity is located in the radio link control layer of the radio network controller, and the HARQ entity is located in the medium access control layer of the base station, and are respectively responsible for the transmission of the protocol data unit generated by the corresponding protocol layer. / Retransmit operation. Data packets need to be segmented / concatenated / stuffed at the wireless network controller, and multiplexed / demultiplexed at the base station. [0003] Taking the downlink data packet as an example, in the radio link control layer of the radio network controller, the service data unit from the upper layer protocol layer is segmented / concatenated / filled ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04Q7/38H04W72/04H04W72/12
Inventor 张健
Owner ZTE CORP
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