US 8,948,130 B2 · Zone switching method in a broadband wireless access system having regard to security association and device for same

Abstract

The present invention relates to a wireless access system, and more particularly, to a method for supporting security during a handover performance through a zone switch and to a device performing same. According to one embodiment of the present invention, switching a zone by a terminal in a broadband wireless access system comprises the following steps: creating at least one service flow in a first zone that supports the legacy mode of a base station; receiving at the base station a first message, which indicates a zone switch to a second zone that supports an advanced mode; and performing the zone switch, wherein performing the zone switch may further comprise a step for receiving from the second zone a second message, which includes security association information that indicates the security association applied to at least one service flow in the second zone.

Claims15

Dependent claims

A method of performing zone switch at a mobile station (MS) in a broadband radio access system, the method comprising:

performing the zone switch from a first zone supporting a legacy mode of a base station (BS) to a second zone supporting an advanced mode of the BS,
wherein the performing the zone switch includes receiving, from the second zone, a second message including security association (SA) information, the SA information indicating at least one second zone service flow that is mapped to at least one second zone SA, and
wherein the at least one second zone SA that is mapped to the at least one second zone service flow is selected from a plurality of available second zone SAs based on a type of a first zone connection identifier corresponding to the second zone service flow, the first zone connection identifier being used in the first zone before performing the zone switch.

A mobile station (MS) for performing zone switch in a broadband radio access system, the MS comprising:

a processor configured to perform the zone switch from a first zone supporting a legacy mode of a base station (BS) to a second zone supporting an advanced mode of the BS;
and
a radio frequency (RF) module configured to transmit and receive an RF signal to and from an external device under control of the processor,
wherein the processor controls the RF module to receive from the second zone, a second message including security association (SA) information, the SA information indicating at least one second zone service flow that is mapped to at least one second zone SA, and
wherein the at least one second zone SA that is mapped to the at least one second zone service flow is selected from a plurality of available second zone SAs based on a type of a first zone connection identifier corresponding to the second zone service flow, the first zone connection identifier being used in the first zone before performing the zone switch.

2 more elements

Dependencies are inferred from the claim text.

Zone switching method in a broadband wireless access system having regard to security association and device for same

Life of this patent

Zone switching method in a broadband wireless access system having regard to security association and device for same

Life of this patent

Abstract

Claims15