Apparatus and method for transmitting/receiving a downlink signal in a communication system
First Claim
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1. A method for transmitting a Downlink (DL) signal from a Base Station (BS) in a communication system, comprising:
- dividing a DL frame into an interference cancellation interval in which an interference cancellation scheme is applied and a non-interference-cancellation interval in which no interference cancellation scheme is applied;
generating a first DL signal to be commonly received by all Mobile Stations (MSs) at the BS and a second DL signal;
transmitting the first DL signal in the interference cancellation interval by applying the first DL signal to the interference cancellation scheme; and
transmitting the second DL signal in the non-interference-cancellation interval,wherein the second DL signal comprises a dedicated control message and traffic data.
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Abstract
In a communication system, a first Downlink (DL) signal to be commonly received by all Mobile Stations (MSs) at a Base Station (BS) is generated. A second DL signal that all the MSs do not need to commonly receive is generated. The first DL signal is applied to an interference cancellation scheme. The first DL signal is transmitted in a first time interval. The second DL signal is transmitted in a second time interval.
8 Citations
38 Claims
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1. A method for transmitting a Downlink (DL) signal from a Base Station (BS) in a communication system, comprising:
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dividing a DL frame into an interference cancellation interval in which an interference cancellation scheme is applied and a non-interference-cancellation interval in which no interference cancellation scheme is applied; generating a first DL signal to be commonly received by all Mobile Stations (MSs) at the BS and a second DL signal; transmitting the first DL signal in the interference cancellation interval by applying the first DL signal to the interference cancellation scheme; and transmitting the second DL signal in the non-interference-cancellation interval, wherein the second DL signal comprises a dedicated control message and traffic data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for transmitting a Downlink (DL) signal from a Base Station (BS) in a communication system, comprising:
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(a) adding a DL MAP information element to be periodically transmitted in a DL MAP message; (b) performing an Uplink (UL) scheduling process and generating a UL MAP message reflecting a UL scheduling result; (c) scheduling a common control message; (d) scheduling a dedicated burst signal; (e) adding scheduling information to the DL MAP message on a basis of the dedicated burst signal scheduling result; (f) repeating steps (d) and (e) until DL resources to be additionally allocated are not present; (g) transmitting the DL MAP message. the UL MAP message and the scheduled common control message in a first time interval by applying the DL MAP message, the UL MAP message and the common control message to an interference cancellation scheme; and (h) transmitting the dedicated burst signal in a second time interval. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for transmitting a Downlink (DL) signal from a Base Station (BS) in a communication system, comprising:
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a controller for dividing a DL frame into an interference cancellation interval in which an interference cancellation scheme is applied and a non-interference-cancellation interval in which no interference cancellation scheme is applied; a scheduler for scheduling a first DL signal to be commonly received by all Mobile Stations (MSs) at the BS and a second DL signal; and a transmitter for transmitting the first DL signal in the interference cancellation interval by applying the first DL signal to the interference cancellation scheme, and transmitting the second DL signal in the non-interference-cancellation interval, wherein the second DL signal comprises a dedicated control message and traffic data. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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29. An apparatus for transmitting a Downlink (DL) signal from a Base Station (BS) in a communication system, comprising:
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a scheduler for adding a DL MAP information element to be periodically transmitted in a DL MAP message, performing an Uplink (UL) scheduling process and generating a UL MAP message reflecting a UL scheduling result, scheduling a common control message, scheduling a dedicated burst signal, adding scheduling information to the DL MAP message on a basis of the dedicated burst signal scheduling result, and repeating an operation for scheduling the dedicated burst signal and adding the scheduling information to the DL MAP message on the basis of the dedicated burst signal scheduling result until DL resources to be additionally allocated are not present; and a transmitter for transmitting the DL MAP message, the UL MAP message and the common control message in a first time interval by applying the DL MAP message, the UL MAP message and the common control message to an interference cancellation scheme, and transmitting the dedicated burst signal in a second time interval. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification