TAG LOCATION, CLIENT LOCATION, AND COVERAGE HOLE LOCATION IN A WIRELESS NETWORK
First Claim
1. A method comprising:
- receiving path loss information from at least one wireless station or radio tag of a wireless s network, the path loss information for one or more location frames received at the respective wireless stations, each location frame transmitted by a respective radio tag or client station and having a pre-defined frame structure; and
determining the location of at least one of the wireless station or radio tags from the received path loss information using a path-loss based location determining method, wherein the radio tag or client station uses for transmitting a location frame, a common infrastructure configured for radiolocation by path loss measurement, the common infrastructure including a pre-defined protocol common for both radio tags and client stations for transmitting information for reception by the plurality of stations of the wireless network for radiolocation, the pre-defined protocol including using the location frame having the pre-defined frame structure, wherein a location frame conforming to the pre-defined frame structure includes an identifier that provides for a receiving station to recognize the frame as a frame that includes location information.
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Accused Products
Abstract
Determining the location of a radio tag or client station of a wireless network, and the location of coverage holes by receiving from a plurality of wireless stations of the wireless network path loss information of the path loss of one or more location frames received at the respective wireless stations. The location frames transmitted by the radio tag or client station having a pre-defined frame structure. The radio tags and client stations use a common infrastructure for transmitting a location frame configured for radiolocation by path loss measurement. The common infrastructure includes a pre-defined protocol common for both radio tags and client stations for transmitting information for reception by the plurality of stations of the wireless network for radiolocation. The pre-defined protocol includes using the location frame having the pre-defined frame structure.
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Citations
23 Claims
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1. A method comprising:
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receiving path loss information from at least one wireless station or radio tag of a wireless s network, the path loss information for one or more location frames received at the respective wireless stations, each location frame transmitted by a respective radio tag or client station and having a pre-defined frame structure; and
determining the location of at least one of the wireless station or radio tags from the received path loss information using a path-loss based location determining method, wherein the radio tag or client station uses for transmitting a location frame, a common infrastructure configured for radiolocation by path loss measurement, the common infrastructure including a pre-defined protocol common for both radio tags and client stations for transmitting information for reception by the plurality of stations of the wireless network for radiolocation, the pre-defined protocol including using the location frame having the pre-defined frame structure, wherein a location frame conforming to the pre-defined frame structure includes an identifier that provides for a receiving station to recognize the frame as a frame that includes location information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method comprising:
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receiving information at a plurality of stations of a wireless network using a a pre-defined protocol, the information in location frames having a pre-defined frame structure and transmitted by one or more transmitters, each transmitter in a radio tag or client station of the wireless network;
using path loss information from the location frames to determine the location of the one or more transmitting transmitters, wherein the pre-defined protocol is part of a common infrastructure for radio tags and client stations of the wireless network to be located using radiolocation by path loss measurement. - View Dependent Claims (18, 19, 20)
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21. A method comprising:
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in a client station of a wireless station or a radio tag, the client station or radio tag including a transmitter of frames that conform to a wireless network standard, transmitting location frames having a pre-defined frame structure and including information for reception by a plurality of stations of the wireless network, the location frames substantially conforming to frames of the wireless network standard, wherein the predefined frame structure is designed for conveying information needed to locate radio tags and clients using path loss measurements, and the location frames having a pre-defined frame structure are configured to be receivable by one or more substantially standard wireless stations of a substantially standard wireless local area network, such that the radio tags or client station can be located using radiolocation by path loss measurement between the radio tag or client station and the receiving stations. - View Dependent Claims (22)
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23. An apparatus for inclusion in a client station of a wireless station or in a radio tag, the apparatus comprising:
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a transmitter configured to transmit frames that conform to a wireless network standard, and further configured to transmit location frames having a pre-defined frame structure and including information for reception by a plurality of stations of the wireless network, the location frames substantially conforming to frames of the wireless network standard, wherein the predefined frame structure includes an identifier that provides for a receiving station to recognize the frame as a frame that includes location information and includes an indication of the transmit power, such that the location frame conveys information usable to locate radio tags and clients using path loss measurements, such that the radio tag or client station can be located using radiolocation by path loss measurement between the radio tag or client station and the receiving stations.
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Specification