Radio resources management method for WLL system
First Claim
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1. A radio resources management method for a Wireless Local Loop (WLL) system, comprising:
- setting reference information of the WLL system according to a cell plan;
storing present information of a request message when the request message is received from a subscriber terminal;
judging a compatibility of a radio environment of the WLL system by comparing the set reference information with the present information of the received request message to determine if the radio environment is in an abnormal or normal state; and
adjusting a direction of an antenna of a home cell base station of the subscriber terminal in the WLL system when the radio environment is determined to be in the abnormal state,wherein the abnormal state of the radio environment corresponds to a directivity of the antenna of the home cell base station being altered due to the abnormal state of the radio environment.
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Abstract
In a radio resources management method for a Wireless Local Loop (WLL) system, the compatibility of a radio environment can be judged by setting and storing information of a home base station, of a WLL subscriber terminal, and comparing the stored information with information of a base station currently relaying communications with the WLL subscriber terminal. Compatibility of the radio environment can also be judged by comparing the reception time intervals of a power ON/OFF message, position registration request message, or call processing request message with a reference time, at certain audit cycles.
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Citations
27 Claims
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1. A radio resources management method for a Wireless Local Loop (WLL) system, comprising:
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setting reference information of the WLL system according to a cell plan; storing present information of a request message when the request message is received from a subscriber terminal; judging a compatibility of a radio environment of the WLL system by comparing the set reference information with the present information of the received request message to determine if the radio environment is in an abnormal or normal state; and adjusting a direction of an antenna of a home cell base station of the subscriber terminal in the WLL system when the radio environment is determined to be in the abnormal state, wherein the abnormal state of the radio environment corresponds to a directivity of the antenna of the home cell base station being altered due to the abnormal state of the radio environment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A radio resources management method for a Wireless Local Loop (WLL) system, comprising:
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setting first position information of a plurality of subscriber terminals in accordance with a cell plan; storing second position information of a pertinent one of the plurality of subscriber terminals, when a particular request message is received from the pertinent subscriber terminal; judging a compatibility of a radio environment by comparing the first and second position information to determine if the radio environment is in an abnormal state; and adjusting a direction of an antenna of a home base station corresponding to the first position information based on juding the compatibility of the radio environment, wherein the abnormal condition of the radio environment corresponds to a directivity of the antenna of the home cell base station being altered due to the abnormal state of the radio environment. - View Dependent Claims (12, 13, 14)
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15. A radio resources management method for a Wireless Local Loop (WLL) system, comprising:
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setting repeating subscriber audit cycles; storing a reception time for each of a plurality of pertinent request messages when the pertinent request message is received from a subscriber terminal; judging a compatibility of a radio environment by comparing intervals of the reception times at each of the repeating subscriber audit cycles; determining the radio environment to be in an abnormal state when the intervals of the reception times are judged to exceed a reference time; and changing a direction of an antenna used in a home base station corresponding to the subscriber terminal when the radio environment is judged to be in the abnormal state, wherein the abnormal condition of the radio environment corresponds to a directivity of the antenna of the home cell base station being altered due to the abnormal state of the radio environment. - View Dependent Claims (16, 17, 18, 19)
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20. A radio resources management method for a wireless local loop (WLL) system, comprising:
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determining reference information regarding a subscriber terminal'"'"'s communication with base stations of the WLL system; determining current information regarding the subscriber terminal'"'"'s communication with the base stations of the WLL system; determining an operational status of the WLL system, with respect to the subscriber terminal, based on the current and reference information; setting an abnormal operation signal to inform the WLL system operator of an abnormal condition of the operational status, when the current and reference information differ by a predetermined extent; and adjusting a propagation characteristic of an antenna included in a current base station communicating with the subscriber terminal, when the operational status is in the abnormal condition for the subscriber terminal, wherein the abnormal condition corresponds to a directivity of the antenna of a home base station being altered due to the abnormal state of the radio environment. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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Specification