Method of changing frequency assignment status in broadband wireless access system
First Claim
1. A method of changing a frequency assignment (FA) status in a base station of a broadband wireless access system, the method comprising:
- determining an FA of which status is to be changed;
transmitting a status change request of the decided FA to a terminal; and
receiving a completion response of the status change request of the FA from the terminal,wherein the determining of the FA includes;
determining whether a load of a primary FA, among a plurality of FAs communicating with the terminal, for transmitting main control signals and data traffic needs to be adjusted by the base station; and
when the load of the primary FA needs to be adjusted, determining a secondary FA of which status is to be changed into the state of the primary FA,wherein the secondary FA is one of the plurality of FAs communicating with the terminal other than the primary FA.
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Abstract
The present invention relates to a method of changing a frequency assignment (FA) status in an improved broadband wireless access system where terminals and base stations communicate with each other by using a plurality of FAs. The base station changes the status of one of secondary FA into the status of the pFA in order to adjust a load of the primary FA, and communicates with the terminal through the pFA of which status is changed. When a response is received from the terminal, the base station changes the status of the pFA and communicates with the pFA of the terminal through a new pFA. The status of a previous pFA between the base station and the terminal is changed into the status of the sFA, and a previous sFA is changed into the pFA, so that communication is performed through new FAs.
15 Citations
19 Claims
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1. A method of changing a frequency assignment (FA) status in a base station of a broadband wireless access system, the method comprising:
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determining an FA of which status is to be changed; transmitting a status change request of the decided FA to a terminal; and receiving a completion response of the status change request of the FA from the terminal, wherein the determining of the FA includes; determining whether a load of a primary FA, among a plurality of FAs communicating with the terminal, for transmitting main control signals and data traffic needs to be adjusted by the base station; and when the load of the primary FA needs to be adjusted, determining a secondary FA of which status is to be changed into the state of the primary FA, wherein the secondary FA is one of the plurality of FAs communicating with the terminal other than the primary FA. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of changing a Frequency Assignment FA status in a terminal of a broadband wireless access system, the method comprising:
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receiving a status change request of an FA from a base station through a primary FA, among a plurality of FAs communicating with the terminal, the primary FA transmitting main control signals and data traffic; confirming an FA of which status is to be changed in the base station; changing the status of the FA; and transmitting a response, which represents the completion of the change of the FA, to the base station, wherein in the confirming of the FA, the primary FA of the terminal confirms the change of the status of the primary FA of the base station through the status change request of the FA, and confirms the status of a secondary FA of the base station which status is changed into the status of the primary FA, wherein the secondary FA is one of the plurality of FAs communicating with the terminal other than the primary FA. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification