METHOD OF COMMUNICATING NEIGHBOR BASE STATION INFORMATION

• US 20080051087A1
• Filed: 05/31/2007
• Published: 02/28/2008
• Est. Priority Date: 05/10/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Chang, Suk Jin, Yong, Ryu, Ki Seon
• Granted Patent: US 7,853,286 B2
• Time in Patent Office: Days
• US Class Current: 455/436
• CPC Class Codes: H04W 36/0085 Hand-off measurements
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 92/18 between terminal devices

Abstract

A method uses inter-base station control messages to provide neighbor base station information to mobile subscriber stations in a mobile communication system. The method includes obtaining, at a serving base station, physical channel information of neighbor base stations over a backbone network via, either directly or via a server; periodically transmitting the obtained physical channel information from the serving base station to a mobile subscriber station connected to the serving base station; and measuring, based on the updated physical channel information, signal quality of the at least one neighbor base station at the mobile subscriber station. Thus, the serving base station receives from the neighbor base stations the inter-base station control messages containing the neighbor base station information, updates the information, and provides the updated information to the corresponding mobile subscriber station(s), to be used for a specific purpose such as handover or network entry.

Claims

1-59. -59. (canceled)

60. A method of communicating handover-related information to a mobile station in a mobile communication system, the method comprising:

receiving a response from at least one target station, the response comprising the handover-related information corresponding to the at least one target station and transmitted over a backbone network from the at least one target station to a first station to which the mobile station is currently connected; and

transmitting the handover-related information from the first station to the mobile station.

61. The method of claim 60, wherein the response from the at least one target station comprises an identifier of the at least one target station.

62. The method of claim 61, wherein the response from the at least one target station further comprises a security field for authenticating a previous request for handover-related information.

63. The method of claim 62, wherein the response from the at least one target station further comprises an identifier of a station that sent the request for handover-related information.

64. The method of claim 60, wherein receiving the response from the at least one target station comprises transmitting the response from the at least one target station to a server that forwards the request to the first station.

65. The method of claim 64, wherein the server is a management function server.

66. The method of claim 60, wherein the handover-related information comprises parameters used by the mobile station to determine whether to perform a transition to the at least one target station.

67. A method of communicating handover-related information to a mobile station in a mobile communication system, the method comprising:

transmitting a request for the handover-related information from a first station to which the mobile station is currently connected to at least one target station over a backbone network;

receiving a response from the at least one target station, the response comprising the handover-related information corresponding to the at least one target station and transmitted from the at least one target station to the first station over the backbone network; and

transmitting the handover-related information from the first station to the mobile station.

68. The method of claim 67, wherein the request for the handover-related information comprises an identifier of the at least one target station.

69. The method of claim 68, wherein the request for the handover-related information further comprises a security field for authenticating the request.

70. The method of claim 69, wherein the request for the handover-related information further comprises an identifier of the first station requesting the handover-related information.

71. The method of claim 67, wherein the response from the at least one target station comprises an identifier of the at least one target station.

72. The method of claim 71, wherein the response from the at least one target station further comprises a security field for authenticating the request.

73. The method of claim 72, wherein the response from the at least one target station further comprises an identifier of the first station requesting the handover-related information.

74. The method of claim 67, wherein transmitting the request for the handover-related information from the first station to the at least one target station comprises transmitting the request from the first station to a server that forwards the request to the at least one target station.

75. The method of claim 74, wherein the server is a management function server.

76. The method of claim 67, wherein receiving the response from the at least one target station comprises transmitting the response from the at least one target station to a server that forwards the request to the first station.

77. The method of claim 76, wherein the server is a management function server.

78. The method of claim 67, wherein the handover-related information comprises parameters used by the mobile station to determine whether to perform a transition to the at least one target station.

79. A method of communicating handover-related information to a mobile station in a mobile communication system, the method comprising:

transmitting a request for the handover-related information from a first station to which the mobile station is currently connected to at least one target station over a backbone network, the request for the handover-related information comprising an identifier of the at least one target station, a security field for authenticating the request and an identifier of the first station;

receiving a response from the at least one target station, the response transmitted from the at least one target station to the first station over the backbone network and comprising the handover-related information corresponding to the at least one target station, an identifier of the at least one target station, a security field for authenticating the request and an identifier of the first station; and

transmitting the handover-related information from the first station to the mobile station.