Title:
【発明の名称】無線通信システム
Document Type and Number:
Japanese Patent JP2003506965
Kind Code:
A
Abstract:
A radio communication system has a random access channel for the transmission of data (214) from a secondary station to a primary station. Such a channel is intended for use by secondary stations having data (214) to transmit to a primary station while not actually engaged in a call.A secondary station requesting access chooses a signature corresponding to the resource it requires to encode an access preamble (202). It may be known, from a resource availability message (402) broadcast by the primary station, that certain resources are unavailable. In this case the primary and secondary stations dynamically re-assign signatures corresponding to the unavailable resources to available resources, thereby reducing the probability of collisions between different secondary stations requesting the same resource.
Inventors:
Moorsley Timothy Jay
Hunt Bernardo
Hunt Bernardo
Application Number:
JP2001515579A
Publication Date:
February 18, 2003
Filing Date:
July 26, 2000
Export Citation:
Assignee:
Konin Krekka Philips Electronics NV
International Classes:
H04L12/28; H04L1/16; H04L12/56; H04W74/08; H04W28/04; H04W48/12; H04W48/14; H04W72/04; (IPC1-7): H04L12/28; H04Q7/36
Attorney, Agent or Firm:
Susumu Tsugaru (1 person outside)