Invention Grant
US08121145B2 Contention-based random access method with autonomous carrier selection
有权
基于竞争的随机接入方法与自主载波选择
- Patent Title: Contention-based random access method with autonomous carrier selection
- Patent Title (中): 基于竞争的随机接入方法与自主载波选择
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Application No.: US12255378Application Date: 2008-10-21
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Publication No.: US08121145B2Publication Date: 2012-02-21
- Inventor: Abdulrauf Hafeez , Kambiz Zangi
- Applicant: Abdulrauf Hafeez , Kambiz Zangi
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee Address: SE Stockholm
- Main IPC: H04L12/43
- IPC: H04L12/43
Abstract:
The method and apparatus described herein controls transmission from a plurality of user terminals to an access point on a random access channel in a wireless communication system. An access point determines an allowed information rate for each user terminal and transmits a rate control parameter indicative of the allowed information rates to the user terminals. The access point also computes a packet transmission probability and transmits the packet transmission probability to the use terminals on a common control channel. The packet transmission probability controls the number of user terminals that transmit in a given time slot to reduce collisions and increase the departure rate. The user terminals selectively transmit one or more packets to the access point in a time slot on the random access channel based on the allowed information rate and the packet transmission probability.
Public/Granted literature
- US20100098043A1 CONTENTION-BASED RANDOM ACCESS METHOD WITH AUTONOMOUS CARRIER SELECTION Public/Granted day:2010-04-22
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