APPARATUS FOR TRANSCEIVING A SIGNAL IN A DISTRIBUTED ANTENNA SYSTEM
First Claim
1. A base station in a distributed antenna system (DAS), comprising:
- a transmission module for transmitting a signal;
an antenna module which includes a plurality of antennas, and in which a predetermined number of pilot patterns are used in accordance with the size of the coverage area, which is a signal transmission range for each of the plurality of antennas, and in accordance with the number of overlapped coverage areas of the plurality of antennas; and
a processor which transmits, through the transmission module, a signal to a user equipment using a pilot pattern corresponding to at least one of the plurality of antennas,wherein the same pilot pattern is used for the antennas of which coverage areas are not overlapped with each other, among the plurality of antennas.
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Abstract
The present invention relates to a signal-transceiving apparatus for a base station in a distributed antenna system (DAS), comprising: a transmitting module for transmitting a signal; an antenna module which includes a plurality of antennas, and in which a predetermined number of pilot patterns are used in accordance with the size of the coverage area, which is a signal-transmitting range for each of the plurality of antennas, and in accordance with the number of overlapping antenna coverage areas; and a processor which transmits, via the transmitting module, a signal to a terminal using a pilot pattern corresponding to a portion of the plurality of antennas. The same pilot pattern is used for the antennas, the antenna coverage areas of which do not overlap, from among the plurality of antennas.
65 Citations
14 Claims
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1. A base station in a distributed antenna system (DAS), comprising:
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a transmission module for transmitting a signal; an antenna module which includes a plurality of antennas, and in which a predetermined number of pilot patterns are used in accordance with the size of the coverage area, which is a signal transmission range for each of the plurality of antennas, and in accordance with the number of overlapped coverage areas of the plurality of antennas; and a processor which transmits, through the transmission module, a signal to a user equipment using a pilot pattern corresponding to at least one of the plurality of antennas, wherein the same pilot pattern is used for the antennas of which coverage areas are not overlapped with each other, among the plurality of antennas. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A user equipment in a distributed antenna system (DAS), comprising:
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a reception module for receiving a signal; and a processor which performs channel estimation for a channel over which the signal is transmitted, by using the received signal, wherein the processor performs the channel estimation for each of pilot patterns for the received signal on the basis of information on a predetermined number of the pilot patterns used in accordance with the size of the coverage area, which is a signal transmission range for each of a plurality of antennas, and in accordance with the number of overlapped coverage areas of the plurality of antennas received from a base station that includes the plurality of antennas, through the reception module. - View Dependent Claims (9, 10)
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11. A method for transmitting a signal from a base station to a user equipment in a distributed antenna system (DAS), the method comprising the steps of:
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allocating a predetermined number of pilot patterns to a plurality of antennas in accordance with the size of the coverage area, which is a signal transmission range for each of the plurality of antennas, and in accordance with the number of overlapped coverage areas of the plurality of antennas; and transmitting the signal to the user equipment through a specific antenna or antenna group associated with the user equipment in accordance with pilot patterns allocated to the plurality of antennas, wherein the same pilot pattern is allocated to the antennas of which coverage areas are not overlapped with each other, among the plurality of antennas. - View Dependent Claims (12)
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13. A method for receiving a signal in a user equipment from a base station in a distributed antenna system (DAS), the method comprising the steps of:
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receiving control information from the base station, which includes a plurality of antennas, the control information including pilot pattern allocation information on a predetermined number of pilot patterns allocated in accordance with the size of the coverage area, which is a signal transmission range for each of the plurality of antennas, and in accordance with the number of overlapped coverage areas of the plurality of antennas; and receiving the signal transmitted in accordance with the pilot pattern allocation information through a specific antenna or antenna group of the base station, wherein the same pilot pattern is allocated to the antennas of which coverage areas are not overlapped with each other, among the plurality of antennas. - View Dependent Claims (14)
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Specification