Method and apparatus for providing location based service in wireless communication system

Abstract

A method and an apparatus for providing a location based service in a wireless communication system are provided. A method of a Base Station (BS) for a Location Based Service (LBS) in a wireless communication system includes allocating identifiers to a plurality of transmission devices in a service coverage area of the BS, generating a Reference Signal (RS) including the identifier of the corresponding transmission device and an identifier of the BS with respect to each of the transmission devices, and transmitting the RS generated for each of the transmission devices, to a Mobile Station (MS) via the corresponding transmission device.

What is claimed is: 
     
       1. A method of a Base Station base station (BS) for a Location Based Service location based service (LBS) in a wireless communication system, the method comprising:
 allocating identifiers to a plurality of Radio Frequency radio frequency (RF) transceivers included in the BS; 
 generating a plurality of reference signals for each of the plurality of RF transceivers, wherein each of the plurality of reference signals comprises an identifier of the BS and an identifier, in the allocated identifiers, of a corresponding RF transceiverof the plurality Radio Frequency (RF) transceivers; and 
 transmitting each of the plurality of reference signals generated for each of the plurality of RF transceivers, to a Mobile Station mobile station (MS) via the corresponding RF transceiver; 
 receiving a report message for each of the plurality of reference signals from the MS; and 
 determining a location of the MS based on the report message. 
 
     
     
       2. The method of  claim 1 , wherein each of the plurality of reference signals is generated based on either a Secondary Advanced secondary advanced (SA) preamble or a midamble. 
     
     
       3. The method of  claim 1 , wherein the identifier of the RF transceiver is repeated for a certain number of times within at least one of sub-blocks constituting each of the plurality of reference signals. 
     
     
       4. The method of  claim 1 , wherein the plurality of the RF transceivers comprises a Remote Radio Head remote radio head (RRH). 
     
     
       5. The method of  claim 1 , further comprising:
 receiving a report message about each of the plurality of reference signals from the MS; and   estimating a location of the MS based on the report message.   
     
     
       6. A method of a Mobile Station mobile station (MS) for a Location Based Service location based service (LBS) in a wireless communication system, the method comprising:
 receiving a plurality of reference signals from a plurality of Radio Frequency radio frequency (RF) transceivers included in a base station (BS), wherein each of the reference signals comprises identification information for the BS and identification information for each of the plurality of the RF transceivers; 
 obtaining identification information of a Base Station (BS) and identification information of an RF transceiver among a plurality of RF transceivers included in the BS from each of the plurality of received reference signals; 
 generating a report message for the LBS based on the obtained identification information for each of the plurality of the RF transceiver among the plurality of RF transceivers and the identification information for the BS; and 
 transmitting the report message to a serving BS of the MS, 
 wherein the report message is used for determining a location of the MS. 
 
     
     
       7. The method of  claim 6 , wherein each of the plurality of reference signals is generated based on either a Secondary Advanced secondary advanced (SA) preamble or a midamble. 
     
     
       8. The method of  claim 6 , wherein the identification information of for each of the plurality of the RF transceiver transceivers is repeated for a certain number of times within at least one of sub-blocks constituting each of the plurality of reference signals. 
     
     
       9. The method of  claim 6 , wherein the plurality of the RF transceivers comprises a Remote Radio Head remote radio head (RRH). 
     
     
       10. The method of  claim 6 , wherein the report message further comprises at least one of the identification information of the RF transceiver, the identification information of the BS, information for a distance between the MS and each of the plurality of the RF transceiver transceivers, and information for a reception time of each of the plurality of reference signals. 
     
     
       11. An apparatus of a Base Station base station (BS) for a Location Based Service location based service (LBS) in a wireless communication system, the apparatus comprising:
 a controller processor configured to:
 to allocate identifiers to a plurality of Radio Frequency radio frequency (RF) transceivers included in the BS, and 
 to generate a plurality of reference signals for each of the plurality of the RF transceivers, wherein each of the plurality of reference signals comprises an identifier, in the allocated identifiers, of a corresponding RF transceiver and an identifier of the BS; and, 
 a transceiver configuredcontrol to transmit each of the plurality of reference signals generated for each of the plurality of the RF transceivers, to a Mobile Stationmobile station (MS) via the corresponding RF transceiver, 
 control to receive a report message for each of the plurality of reference signals from the MS via the corresponding RF transceiver; and 
 determine a location of the MS based on the report message. 
 
 
     
     
       12. The apparatus of  claim 11 , wherein each of the plurality of the reference signals is generated based on either a Secondary Advanced secondary advanced (SA) preamble or a midamble. 
     
     
       13. The apparatus of  claim 11 , wherein the identifier of the corresponding RF transceiver is repeated for a certain number of times within at least one of sub-blocks constituting each of the plurality of the reference signals. 
     
     
       14. The apparatus of  claim 11 , wherein the plurality of the RF transceivers comprises a Remote Radio Head remote radio head (RRH). 
     
     
       15. The apparatus of  claim 11 , wherein the transceiver receives a report message about each of the plurality of reference signals from the MS and the controller estimates a location of the MS based on the report message. 
     
     
       16. An apparatus of a Mobile Station mobile station (MS) for a Location Based Service location based service (LBS) in a wireless communication system, the apparatus comprising:
 a receiver transceiver; and 
 a processor configured to:
 receive reference signals from a plurality of Radio Frequency (RF) transceivers; 
 
 a controller configured:
 to obtain identification information of a Base Station (BS) and identification information of an RF transceiver among a plurality of RF transceivers included in the BS from each of the plurality of received reference signals, and 
 control to receive, via the transceiver, reference signals from a plurality of radio frequency (RF) transceivers included in a base station (BS), wherein each of the reference signals comprises identification information for the BS and identification information for each of the plurality of the RF transceivers, 
 to generate a report message for the LBS based on the obtained identification information of for each of the plurality of the RF transceiver;  transceivers and the identification for the BS, and 
 a transmitter configuredcontrol to transmit the report message to a serving BS of the MSvia the transceiver, 
 
 wherein the report message is used for determining a location of the MS. 
 
     
     
       17. The apparatus of  claim 16 , wherein each of the plurality of reference signals is generated based on either a Secondary Advanced secondary advanced (SA) preamble or a midamble. 
     
     
       18. The apparatus of  claim 16 , wherein the identification information of for each of the plurality of the RF transceiver transceivers is repeated for a certain number of times within at least one of sub-blocks constituting each of the plurality of reference signals. 
     
     
       19. The apparatus of  claim 16 , wherein each of the plurality of the RF transceivers comprises a Remote Radio Head remote radio head (RRH). 
     
     
       20. The apparatus of  claim 16 , wherein the report message further comprises at least one of the identification information of the RF transceiver, the identification information of the BS, information for a distance between the MS and each of the plurality of the RF transceiver transceivers, and information for a reception time of each of the plurality of reference signals.