Method for transmitting uplink signal for location-based service and user device, and method for measuring location of user device using uplink signal and base station
AssigneeLG Electronics Inc.
InventorsJin Soo Choi, Han Gyu Cho, Jin Sam Kwak
Life of this patent
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Abstract
In the present invention, an uplink synchronization signal for measuring a location of a user device is assigned to a predetermined uplink sub-frame and a predetermined sub-band and is transmitted to one or adjacent cells as well as a serving cell in a predetermined period. Since the synchronization signal for measuring the location is transmitted to a plurality of cells through the same wireless resource, other date are not transmitted to the same wireless resource and a near-far effect can be reduced in each cell.
Claims18
A method for transmitting, by a user equipment, an uplink location measurement signal for a location based service (LBS) in a wireless communication system, the method comprising:
- transmitting the uplink location measurement signal to a serving base station and one or more neighboring base stations in a predetermined uplink subframe during an uplink LBS zone configured for transmission of the uplink location measurement signal,
- wherein the uplink location measurement signal is transmitted through a subband of which index is the highest among a plurality of subbands used at each of the serving and neighboring base stations when the uplink LBS zone is configured in a frequency division multiplexing (FDM) based uplink partial usage of subchannels (PUSC) zone, or the lowest among the plurality of subbands used at each of the serving and neighboring base stations.
A method for receiving, by a base station, an uplink location measurement signal for a location based service (LBS) in a base station of a wireless communication system, the method comprising:
- receiving the uplink location measurement signal from a user equipment in a predetermined uplink subframe during an uplink LBS zone configured for reception of the uplink location measurement signal,
- wherein the uplink location measurement signal is received through a subband of which index is the highest among a plurality of subbands used at the base station, when the uplink LBS zone is configured in a frequency division multiplexing (FDM) based uplink partial usage of subchannels (PUSC) zone, or the lowest among the plurality of subbands used at the base station.
A user equipment for transmitting an uplink location measurement signal for a location based service (LBS) in a wireless communication system, the user equipment comprising:
- a receiver;
- a transmitter;
- and
- a processor configured to control the receiver and the transmitter,
- wherein the processor is configured to control the transmitter to transmit the uplink location measurement signal to a serving base station and one or more neighboring base stations in a predetermined uplink subframe during an uplink LBS zone configured for transmission of the uplink location measurement signal, and
- wherein the processor is configured to control the transmitter to transmit the uplink location measurement signal through a subband of which index is the highest among a plurality of subbands used at each of the serving and neighboring base stations, when the uplink LBS zone is configured in a frequency division multiplexing (FDM) based uplink partial usage of subchannels (PUSC) zone, or the lowest among the plurality of subbands used at each of the serving and neighboring base stations.
A base station for receiving an uplink location measurement signal for a location based service (LBS) in a wireless communication system, the base station comprising:
- a receiver;
- a transmitter;
- and
- a processor configured to control the receiver and the transmitter,
- wherein the processor is configured to control the receiver to receive the uplink location measurement from a user equipment in a predetermined uplink subframe during an uplink LBS zone configured for reception of the uplink location measurement signal, and
- wherein the processor is configured to receive the uplink location measurement signal through a subband of which index is the highest among a plurality of subbands used at each of the serving and neighboring base stations, when the uplink LBS zone is configured in a frequency division multiplexing (FDM) based uplink partial usage of subchannels (PUSC) zone, or the lowest among the plurality of subbands used at each of the serving and neighboring base stations.
Dependencies are inferred from the claim text.