Selectively providing system information in a heterogeneous network environment
First Claim
1. An apparatus for selectively providing system information in a heterogeneous network environment including a first network overlaid on a second network, the apparatus comprising:
- a location determination unit configured to receive an uplink signal transmitted from user equipment and to determine a first network base station in the first network, which is located in a comparatively close distance to the user equipment;
a mapping table configured to store information on at least one second network cell in a second network, which is overlaid on a first network cell of the determined first network base station, and is spatially in a comparatively close distance to the determined first network base station in the first network among entire second network cells overlaid on the first network cell of the determined first network base station; and
a signal processor configured to determine, among the entire second network cells overlaid on the first network cell of the determined first network base station, at least one second network cell spatially close to the determined first network base station based on the mapping table, to obtain system information of the determined at least one second network cell, and to transmit the obtained system information to the user equipment instead of system information on the entire second network cells overlaid on the first network cell of the determined first network base station.
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Abstract
Described embodiments provide an apparatus and method for selectively providing system information in a heterogeneous network environment including a first network overlaid on a second network. The apparatus may include a location determination unit, a mapping table, and a signal processor. The location determination unit may be configured to determine a first network base station in the first network. The mapping table may be configured to store information on at least one second network cell in a second network, which is spatially in a comparatively close distance to each first network base station in the first network. The signal processor may be configured to determine at least one second network cell spatially close to the determined first network base station based on the mapping table and to transmit system information of the at least one second network cell to the user equipment.
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Citations
20 Claims
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1. An apparatus for selectively providing system information in a heterogeneous network environment including a first network overlaid on a second network, the apparatus comprising:
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a location determination unit configured to receive an uplink signal transmitted from user equipment and to determine a first network base station in the first network, which is located in a comparatively close distance to the user equipment; a mapping table configured to store information on at least one second network cell in a second network, which is overlaid on a first network cell of the determined first network base station, and is spatially in a comparatively close distance to the determined first network base station in the first network among entire second network cells overlaid on the first network cell of the determined first network base station; and a signal processor configured to determine, among the entire second network cells overlaid on the first network cell of the determined first network base station, at least one second network cell spatially close to the determined first network base station based on the mapping table, to obtain system information of the determined at least one second network cell, and to transmit the obtained system information to the user equipment instead of system information on the entire second network cells overlaid on the first network cell of the determined first network base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for selectively providing system information in a heterogeneous network environment including a first network overlaid on a second network, the method comprising:
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receiving an uplink signal transmitted from user equipment; determining a first network base station in the first network located in a comparatively close distance to the user equipment; and determining, among entire second network cells overlaid on a first network cell of the determined first network base station, at least one second network cell spatially close to the determined first network base station based on a mapping table; obtaining system information of the determined at least one second network cell; and providing the obtained system information to the user equipment. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for selectively providing system information of cells in a universal mobile telecommunication system radio access network (UTRAN) in a heterogeneous network environment including a long term evolution (LTE) network overlaid on the UTRAN, the apparatus comprising:
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a location determination unit configured to receive an uplink signal transmitted from user equipment and to determine a LTE base station located in a comparatively close distance to the user equipment; a mapping table configured to store information on at least one UTRAN cell which is overlaid on a LTE cell of the determined LTE base station and is spatially in a comparatively close distance to the determined LTE base station overlaid on UTRAN cells among entire second network cells overlaid on the LTE cell of the determined LTE base station; and a signal processor configured to determine, among the entire UTRAN cells overlaid on the LTE cell of the determined LTE base station, at least one UTRAN cell spatially close to the determined LTE base station based on the mapping table, to obtain system information of the determined at least one UTRAN cell, and to transmit the obtained system information to the user equipment instead of transmitting system information on the entire UTRAN cells overlaid on the LTE cell of the determined LTE network base station. - View Dependent Claims (20)
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Specification