Method of transmitting and receiving radio access information in a wireless mobile communications system
AssigneeLG Electronics Inc.
InventorsSung Jun Park, Young Dae Lee, Sung Duck Chun, Myung Cheul Jung
Life of this patent
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Abstract
In a wireless mobile communications system, a method of transmitting and receiving radio access information that allows a faster and an efficient way of establishing a radio connection between a terminal and a target base station while performing a handover for the terminal to a cell of the target base station. The network transmits in advance, the radio access information and the like, to the terminal so that the terminal can be connected with the target cell in a faster manner which minimizes the total time for the handover process.
Claims26
A method of transmitting access information in a mobile communications system, the method comprising:
- deciding to perform a handover for a terminal to a cell of a target base station;
- transmitting, from a source base station to the target base station, a handover request for performing a handover of the terminal from the source base station to the target base station;
- receiving, at the source base station, access information from the target base station that received the handover request, wherein the receiving of the access information occurs after the transmitting of the handover request;
- and
- transmitting, from the source base station to the terminal, the access information being configured to permit the terminal to access the target base station;
- wherein the access information includes preamble information for a random access procedure,
- wherein the preamble information is a dedicated preamble used only for a specific terminal, and
- wherein the dedicated preamble is determined by the target base station.
A method of transmitting access information in a mobile communications system, the method comprising:
- receiving, at a target base station from a source base station, a handover request for performing a handover of a terminal from the source base station to the target base station;
- and
- transmitting, from the target base station to the source base station, access information upon receiving the handover request, wherein the access information is used to allow the terminal to access the target base station,
- wherein the access information includes preamble information for a random access procedure,
- wherein the preamble information is a dedicated preamble used only for a specific terminal, and
- wherein the dedicated preamble is determined by the target base station.
A method of receiving access information in a mobile communications system, the method comprising:
- receiving access information from a source base station after a handover request is accepted by a target base station,
- wherein the access information includes preamble information for a random access procedure,
- wherein the preamble information is a dedicated preamble used only for a specific terminal, and
- wherein the dedicated preamble is determined by the target base station;
- and
- performing the random access procedure with the target base station using the received access information, such that the access information is configured to permit the terminal to access the target base station.
A mobile terminal for establishing a radio connection to a target base station in a mobile communications system, the mobile terminal comprising:
- a radio protocol adapted to receive access information from a source base station after a handover request is accepted by the target base station and to perform a random access procedure with the target base station using the received access information, such that the access information is configured to permit the terminal to access the target base station,
- wherein the access information includes preamble information for the random access procedure,
- wherein the preamble information is a dedicated preamble used only for a specific terminal, and
- wherein the dedicated preamble is determined by the target base station.
Dependencies are inferred from the claim text.