×

Packet data communication device and method in mobile communication system

  • US 6,636,496 B1
  • Filed: 08/26/1999
  • Issued: 10/21/2003
  • Est. Priority Date: 08/26/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for establishing a channel between a mobile station and a base station in a mobile communication system, the system comprising the steps of:

  • generating a broadcast channel frame including status information indicating whether channel codes are occupied or not, the status of channel codes changing in real time;

    transmitting said broadcast channel frame every predetermined time period by a base station;

    receiving, at a mobile station, the broadcast channel frame at the time period;

    selecting an available channel code based on information in the received broadcast channel frame;

    determining whether an access is allowed or not by calculating access probability;

    generating a channel assignment request message when the access is allowed, transmitting the channel assignment request message on a random access channel by a mobile station; and

    assigning, at the base station, the channel code selected by the mobile station on a forward access channel, upon reception of the channel assignment request message on the random access channel.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×