Method and apparatus for protecting a primary service in WLAN system
First Claim
1. A method of protecting a primary service by a station as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate, the method comprising:
- acquiring a list of identified available channels for the operation of the unlicensed device and maximum allowed transmission powers of the identified available channels from a regulatory domain database system, wherein the list of identified available channels indicates frequencies permitted by the regulatory domain database system;
generating a white space map (WSM) comprising the list of identified available channels and the maximum allowed transmission powers of the identified available channels;
updating the WSM when the station retrieves updated available channel information; and
transmitting the updated WSM to another station such that the another station moves to another channel if the another station is operating on the specific channel,wherein the updated WSM is used for the another station to determine a white space operation state of the another station,wherein, if the another station fails to retrieve the updated WSM within a predetermined time, the another station changes the white space operation state to unenabled and stops transmitting within the white space, andwherein the station has a regulatory database access capability, and the another station lacks regulatory database access capability.
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Accused Products
Abstract
A method and an apparatus for protecting a primary service as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate are disclosed. For protecting a primary service by a station as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate, the unlicensed device acquires a list of identified available channels for the operation of the unlicensed device and maximum allowed transmission powers of the identified available channels from a regulatory domain database system; generates a white space map (WSM) comprising the list of identified available channels and the maximum allowed transmission powers of the identified available channels; updates the WSM when the station acquires information that a primary service signal is detected on a specific channel which is indicated as available in the WSM; and transmits the updated WSM to another station such that the another station moves to another channel if the another station is operating on the specific channel.
104 Citations
24 Claims
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1. A method of protecting a primary service by a station as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate, the method comprising:
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acquiring a list of identified available channels for the operation of the unlicensed device and maximum allowed transmission powers of the identified available channels from a regulatory domain database system, wherein the list of identified available channels indicates frequencies permitted by the regulatory domain database system; generating a white space map (WSM) comprising the list of identified available channels and the maximum allowed transmission powers of the identified available channels; updating the WSM when the station retrieves updated available channel information; and transmitting the updated WSM to another station such that the another station moves to another channel if the another station is operating on the specific channel, wherein the updated WSM is used for the another station to determine a white space operation state of the another station, wherein, if the another station fails to retrieve the updated WSM within a predetermined time, the another station changes the white space operation state to unenabled and stops transmitting within the white space, and wherein the station has a regulatory database access capability, and the another station lacks regulatory database access capability. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for protecting a primary service as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate, the apparatus comprising:
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a processor configured to acquire a list of identified available channels for the operation of the unlicensed device and maximum allowed transmission powers of the identified available channels from a regulatory domain database system, wherein the list of identified available channels indicates frequencies permitted by the regulatory domain database system, generate a white space map (WSM) comprising the list of identified available channels and the maximum allowed transmission powers of the identified available channels, and update the WSM when the station retrieves updated available channel; and a transceiver configured to transmit the updated WSM to another station such that the another station moves to another channel if the another station is operating on the specific channel, wherein the updated WSM is used for the another station to determine a white space operation state of the another station, and wherein, if the another station fails to retrieve the updated WSM within a predetermined time, the another station changes the white space operation state to unenabled and stops transmitting within the white space, and wherein the station has a regulatory database access capability, and the another station lacks regulatory database access capability. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification