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Method for performing an enhanced random access using information of forward common channels in a mobile communication system
| Details |
Inventors: Youn, Young Sik;
Assignee: LG Information and Communications, Ltd. (Seoul, KR)
Primary Examiner: Gesesse; Tilahun
Assistant Examiner:
Attorney, Agent or Firm: Fleshner & Kim, LLP
Method for performing a random access in a mobile communication system, including the steps of monitoring at base station a state of a reverse common channel, determining state information of the reverse common channel corresponding to a result of the monitoring using one slot allocated to a forward common channel, and transmitting the state information to respective mobile stations through the forward common channel, whereby improving a message transmission efficiency because one random access slot allocated to the forward common channel is used, not entirely, but partly, or the state information of the reverse common channel is transmitted repeatedly for a given times in a case when the base station transmits state information of the reverse common channel to all mobile stations within cells of sectors of its own. |
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DETAILED DESCRIPTION Accordingly, the present invention is directed to an improved method for performing a random access in a mobile communication system that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.
An object of the present invention is to provide an improved method for performing a random access in a mobile communication system which can improve a message transmission efficiency and minimize random access failures.
Other object of the present invention is to provide a random access slot architecture which can improve a transmission efficiency or minimize a ratio of failure when a base station transmits information on a reverse common channel state to respective mobile stations.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention.
The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described, the method for performing a random access in a mobile communication system, includes the steps of monitoring at base station a state of a reverse common channel, determining state information of the reverse common channel corresponding to a result of the monitoring using one slot allocated to a forward common channel, and transmitting the state information to respective mobile stations through the forward common channel.
The method for performing a random access in a mobile communication system of the present invention can improve a message transmission efficiency because one random access slot allocated to the forward common channel is used, not entirely, but partly(for a quarter), or the state information of the reverse common channel is transmitted repeatedly for a given times in a case when the base station transmits state information of the reverse common channel to all mobile stations within cells of sectors of its own
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