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Method and Apparatus of Improving Reset of Evolved Media Access Control Protocol Entity in a Wireless Communications System

a technology of wireless communications system and protocol entity, applied in the field of methods and apparatus for improving the reset of evolved media access control protocol entity, can solve the problems of reducing bandwidth utility rate and data processing efficiency, not executing the operation of discarding pdu segments still existing in the reassembly entity, and affecting the operation of mac-ehs protocol entity reset.

Inactive Publication Date: 2008-11-13
INNOVATIVE SONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]It is therefore an objective of the present invention to provide a method and apparatus for improving reset of a MAC-ehs protocol entity in a user equipment of a wireless communications system.

Problems solved by technology

However, this decreases bandwidth utility rate and data processing efficiency, especially for high data rate applications, such as High Speed Downlink Package Access (HSDPA) and High Speed Uplink Package Access (HSUPA) in the 3G mobile telecommunications system.
However, when the MAC-ehs reset procedure is performed, operation of discarding PDU segments still existing in the reassembly entity is not executed.
In this situation, after resetting the MAC-ehs protocol entity, later-received reordering PDUs may be incorrectly concatenated with the stored PDU segments in the reassembly entity, resulting in a data error of the UE.

Method used

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  • Method and Apparatus of Improving Reset of Evolved Media Access Control Protocol Entity in a Wireless Communications System
  • Method and Apparatus of Improving Reset of Evolved Media Access Control Protocol Entity in a Wireless Communications System
  • Method and Apparatus of Improving Reset of Evolved Media Access Control Protocol Entity in a Wireless Communications System

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Embodiment Construction

[0020]Please refer to FIG. 2, which is a functional block diagram of a communications device 100. For the sake of brevity, FIG. 2 only shows an input device 102, an output device 104, a control circuit 106, a central processing unit (CPU) 108, a memory 110, a program code 112, and a transceiver 114 of the communications device 100. In the communications device 100, the control circuit 106 executes the program code 112 in the memory 110 through the CPU 108, thereby controlling an operation of the communications device 100. The communications device 100 can receive signals input by a user through the input device 102, such as a keyboard, and can output images and sounds through the output device 104, such as a monitor or speakers. The transceiver 114 is used to receive and transmit wireless signals, delivering received signals to the control circuit 106, and outputting signals generated by the control circuit 106 wirelessly. From a perspective of a communications protocol framework, t...

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Abstract

A method of improving reset of an evolved media access control (MAC-ehs) protocol entity for a user equipment of a wireless communications system is disclosed. The MAC-ehs entity includes a plurality of reordering queues and a plurality of reassembly entities. The method includes receiving a reset request for resetting the MAC-ehs entity, delivering all reordering packet data units (PDUs) stored in the plurality of reordering queues to the corresponding reassembly entities for performing a reassembly process to deliver complete upper layer PDUs to an upper layer entity, and discarding all PDU segments still existing in the plurality of reassembly entities.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 60916546, filed on May 7, 2007 and entitled “Method and Apparatus for allocating HARQ configuration and concatenation and delivery of MAC PDUs”, the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a method and apparatus for improving reset of an evolved media access control, named MAC-ehs hereinafter, protocol entity in a user equipment of a wireless communications system, and more particularly to a method and apparatus for resetting the MAC-ehs protocol entity by correctly discarding previously stored packet data unit segments in a user equipment in a wireless communications system.[0004]2. Description of the Prior Art[0005]The third generation (3G) mobile telecommunications system has adopted a Wideband Code Division Multiple Access (WCDMA) wireless air interface ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04W28/04H04W28/06H04W72/04H04W92/10
CPCH04L1/0091H04L1/1835H04L69/324H04B7/2612
Inventor TSENG, LI-CHIH
Owner INNOVATIVE SONIC
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