US2002052204A1

3G

Title

METHOD AND APPARATUS FOR RAPID ASSIGNMENT OF A TRAFFIC CHANNEL IN DIGITAL CELLULAR COMMUNICATION SYSTEMS

Application Number:

US20010007206

Publication Date:

02-05-2002

Family ID:

Application Date:

09-11-2001

Publication Country:

US

Priority Date:

22-09-1998

Declaring Company:

Abstract  Abstract

A method and apparatus for rapidly assigning traffic channels to a plurality of mobile stations in a wide area high-speed packet data cellular communication system. Mobile stations transmit access probes on randomly selected access channels to selected base stations to initiate traffic channel assignments. The access probe comprises a pilot preamble a traffic channel request and a pilot/data request channel (DRC). The pilot preamble allows the selected base station to easily detect the access probe transmission. The traffic channel request includes data that identifies the mobile station. Immediately after transmitting the traffic channel request the mobile station begins communicating with the base station on both the forward and reverse communication links. The selected base station immediately supervises the mobile stations transmission power. The mobile station selects from a group of available power control sub-channels. The mobile station selects an available channel and an associated power control sub-channel from the list.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.