Method for receiving control information in orthogonal frequency division multiplexing system of mobile communication system
First Claim
1. A method of receiving, at a mobile terminal of an orthogonal frequency division multiplexing (OFDM) system, information of OFDM symbols of a downlink control channel which is signaled through a physical control format indicator channel (PCFICH), the method comprising:
- (a) receiving information about number m of first OFDM symbols which is used for transmission of a channel that carries a hybrid automatic repeat request (HARQ) ACK/NACK; and
(b) receiving information about number n of second OFDM symbols which is used for transmission of the downlink control channel,wherein the number n is equal to or greater than the number m (n≧
m) and a transmission interval of the information about the number m is greater than a transmission interval of the information about the number n.
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Accused Products
Abstract
The present invention relates to receiving control information in an orthogonal frequency division multiplexing (OFDM) system of a mobile communication system. The present invention includes receiving information related to a number of OFDM symbols in a subframe for receiving first control information, receiving information related to a number of OFDM symbols in the subframe for receiving second control information, decoding the first control information according to the received information related to the number of OFDM symbols in the subframe for receiving the first control information, and decoding the second control information according to the received information related to the number of OFDM symbols in the subframe for receiving the second control information, wherein the number of OFDM symbols for receiving the first control information is less than or equal to the number of OFDM symbols for receiving the second control information.
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Citations
10 Claims
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1. A method of receiving, at a mobile terminal of an orthogonal frequency division multiplexing (OFDM) system, information of OFDM symbols of a downlink control channel which is signaled through a physical control format indicator channel (PCFICH), the method comprising:
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(a) receiving information about number m of first OFDM symbols which is used for transmission of a channel that carries a hybrid automatic repeat request (HARQ) ACK/NACK; and (b) receiving information about number n of second OFDM symbols which is used for transmission of the downlink control channel, wherein the number n is equal to or greater than the number m (n≧
m) and a transmission interval of the information about the number m is greater than a transmission interval of the information about the number n. - View Dependent Claims (2, 3, 4)
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5. A method of transmitting, at a base station of an orthogonal frequency division multiplexing (OFDM) system, information of OFDM symbols of a downlink control channel which is signaled through a physical control format indicator channel (PCFICH), the method comprising:
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transmitting information about number m of first OFDM symbols which is used for transmission of a channel that carries a hybrid automatic repeat request (HARQ) ACK/NACK, wherein the information about the number m is set by a layer that is higher than a physical layer; and transmitting information about number n of second OFDM symbols which is used for transmission of the downlink control channel, wherein the number n is equal to or greater than the number m (n≧
m) and a transmission interval of the number m is greater than a transmission interval of the number n.
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6. A mobile terminal configured to receive information of OFDM symbols of a downlink control channel which is signaled through a physical control format indicator channel (PCFICH) in an orthogonal frequency division multiplexing (OFDM) system, the mobile terminal comprising:
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an RF module for (a) receiving information about number m of first OFDM symbols which is used for transmission of a channel that carries a hybrid automatic repeat request (HARQ) ACK/NACK, the RF module (b) receiving information about number n of second OFDM symbols which is used for transmission of the downlink control channel, wherein the number n is equal to or greater than the number m (n≧
m) and a transmission interval of the information about the number m is greater than a transmission interval of the information about the number n. - View Dependent Claims (7, 8, 9)
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10. A base station configured to transmit information of OFDM symbols of a downlink control channel which is signaled through a physical control format indicator channel (PCFICH) in an orthogonal frequency division multiplexing (OFDM) system, the base station comprising:
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an RF module for transmitting information about number m of first OFDM symbols which is used for transmission of a channel that carries a hybrid automatic repeat request (HARQ) ACK/NACK, wherein the information about the number m is set by a layer that is higher than a physical layer, the RF module further transmitting information about number n of second OFDM symbols which is used for transmission of the downlink control channel, wherein the number n is equal to or greater than the number m (n≧
m) and a transmission interval of the number m is greater than a transmission interval of the number n.
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Specification