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Method and apparatus for handling a contention-based random acces procedure

A random access and communication device technology, applied in wireless communication, error prevention/detection using the return channel, digital transmission system, etc., can solve the problems of client power consumption, interference with other client uplink transmissions, etc.

Active Publication Date: 2009-09-16
INNOVATIVE SONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, continuing to schedule retransmissions of transmission messages will result in unnecessary consumption of client power
In addition, since the base station may have allocated the channel resources originally used by the client to transmit the scheduled transmission message to other clients, the retransmission of the scheduled transmission message will also interfere with the uplink transmission of other clients

Method used

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  • Method and apparatus for handling a contention-based random acces procedure
  • Method and apparatus for handling a contention-based random acces procedure
  • Method and apparatus for handling a contention-based random acces procedure

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Embodiment Construction

[0018] Please refer to figure 2 , figure 2 It is a schematic diagram of a wireless communication system 10. The wireless communication system 10 is preferably a Long Term Evolution (LTE) system, which is briefly composed of a network terminal and multiple clients. in figure 2 In, the network side and the client side are used to illustrate the structure of the wireless communication system 10; in fact, the network side may include multiple base stations, wireless network controllers, etc. depending on different needs; and the client side may be mobile phones, computer systems And other equipment.

[0019] Please refer to image 3 , image 3 It is a functional block diagram of the wireless communication device 100 of a wireless communication system. The wireless communication device 100 can be used to implement figure 2 In the client. For simplicity, image 3 Only an input device 102, an output device 104, a control circuit 106, a central processing unit 108, a storage device 11...

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Abstract

The invention discloses a method and apparatus for handling a contention-based random access procedure in a user equipment (UE) of a wireless communication system. The method includes steps of sending a Scheduled Transmission message, the Scheduled Transmission message applying an HARQ (Hybrid Automatic Repeat request) process for transmission, starting a Contention Resolution Timer and monitoring a PDCCH (Physical Downlink Control Channel), and flushing a buffer of the HARQ process used for transmission of the Scheduled Transmission message when a contention result of the random access procedure is determined.

Description

Technical field [0001] The present invention refers to a method for processing a contention type random access program and its related communication device, in particular to a method for processing a contention type random access program in a wireless communication system and its related communication device, to Terminate the retransmission of a scheduled transmission message in a timely manner. Background technique [0002] The Long Term Evolution (LTE) wireless communication system is an advanced high-speed wireless communication system built on the third-generation mobile communication system (such as the Global Mobile Telecommunications System). It only needs to support packet switching transmission and wireless The radio link control (RLC) communication protocol layer and the medium access control (MAC) communication protocol layer can be integrated into the same communication network unit, such as the base station (Node B), without the need It is located in the base station...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08
CPCH04W74/0833H04L1/1874H04W72/1284H04L1/1887H04W72/21H04W74/0838H04L1/18H04W74/08
Inventor 郭丰旗
Owner INNOVATIVE SONIC