Method of providing extended group call service
First Claim
1. A method of providing a group call service in a radio network, comprising the steps of:
- (a) making a handover between a mobile station (MS) receiving the group call service and a first BS of a non-service area when the MS moves from a group call area (GCA) providing the group call service to an overlap area wherein the GCA and the non-service area overlap;
(b) generating and broadcasting, by the first BS, extended group call service information including information on able BSs that belong to GCA neighboring the non-service area; and
(c) selecting a second BS from the able BSs and making a handover between the MS and the second BS after the MS receives the broadcast extended group call service information.
1 Assignment
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Accused Products
Abstract
A method of providing a group call service in a radio network is provided. A BS, which does not cover a GCA but is located in a radio network near to the GCA, generates extended group call service information including information about BSs that cover an NGCA and broadcasts the extended group call service information. Upon receipt of the extended group call service information, an MS selects a BS in the best service condition among BSs set in the extended group call service information as a BS from which to receive an extended group call service and receives group call paging information from the BS. The MS analyzes the group call paging information and decides whether the group call service is available from the BS. If the group call service is available, the MS registers and connects to the selected BS and receives the group call from the BS.
13 Citations
10 Claims
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1. A method of providing a group call service in a radio network, comprising the steps of:
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(a) making a handover between a mobile station (MS) receiving the group call service and a first BS of a non-service area when the MS moves from a group call area (GCA) providing the group call service to an overlap area wherein the GCA and the non-service area overlap; (b) generating and broadcasting, by the first BS, extended group call service information including information on able BSs that belong to GCA neighboring the non-service area; and (c) selecting a second BS from the able BSs and making a handover between the MS and the second BS after the MS receives the broadcast extended group call service information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification