Wireless communication device and wireless communication method
AssigneePanasonic Intellectual Property Corporation of America
InventorsLILEI WANG, AYAKO HORIUCHI, ALEXANDER GOLITSCHEK EDLER VON ELBWART, MASAYUKI HOSHINO
Life of this patent
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Abstract
Provided are wireless communication devices and methods. A wireless communication device can comprise: circuitry operative to map at least a first type of reference signals (RSs) onto orthogonal frequency division multiplexing (OFDM) symbol (s) other than the OFDM symbols onto which shortened transmission time intervals (TTIs) are mapped in a subframe, each of the shortened TTIs comprising 1-7 OFDM symbols; and a transmitter operative to transmit a physical channel in one of the shortened TTIs and transmit at least the first type of RSs.
Claims20
A wireless communication device comprising:
- circuitry operative to map at least a first type of reference signals (RSs) onto orthogonal frequency division multiplexing (OFDM) symbol(s) other than the OFDM symbols onto which shortened transmission time intervals (TTIs) are mapped in a subframe, each of the shortened TTIs comprising 1-7 OFDM symbols;
- and
- a transmitter operative to transmit a physical channel in one of the shortened TTIs and transmit at least the first type of RSs.
A wireless communication method comprising:
- mapping at least a first type of reference signals (RSs) onto orthogonal frequency division multiplexing (OFDM) symbol(s) other than the OFDM symbols onto which shortened transmission time intervals (TTIs) are mapped in a subframe, each of the shortened TTIs comprising 1-7 OFDM symbols;
- and
- transmitting a physical channel in one of the shortened TTIs and transmitting at least the first type of RSs.
A wireless communication device comprising:
- a receiver operative to receive at least a first type of reference signals (RSs) and receive a physical channel in a shortened transmission time interval (TTI) which comprises 1-7 orthogonal frequency division multiplexing (OFDM) symbols;
- and
- circuitry operative to demodulate the physical channel based on at least the first type of RSs, wherein
- the first type of RSs are mapped onto OFDM symbol(s) onto which no shortened TTIs are mapped.
A wireless communication method comprising:
- receiving at least a first type of reference signals (RSs) and receiving a physical channel in a shortened transmission time interval (TTI) which comprises 1-7 orthogonal frequency division multiplexing (OFDM) symbols;
- and
- demodulating the physical channel based on at least the first type of RSs, wherein
- the first type of RSs are mapped onto OFDM symbol(s) onto which no shortened TTIs are mapped.
A wireless communication device comprising:
- circuitry operative to map at most one type of reference signals (RSs) from cell-specific reference signals (CRSs) and demodulation reference signals (DMRSs) in each shorten transmission time interval (TTI) in a subframe, each shortened TTI comprising 1-7 orthogonal frequency division multiplexing (OFDM) symbols;
- and
- a transmitter operative to transmit a physical channel in a shorten TTI, the RSs within the OFDM symbol(s) of or before the shorten TTI transmitting the physical channel being used to demodulate the physical channel at a receiving side.
A wireless communication method comprising:
- mapping at most one type of reference signals (RSs) from cell-specific reference signals (CRSs) and demodulation reference signals (DMRSs) in each shorten transmission time interval (TTI) in a subframe, each shortened TTI comprising 1-7 orthogonal frequency division multiplexing (OFDM) symbols;
- and
- transmitting a physical channel in a shorten TTI, the RSs within the OFDM symbol(s) of or before the shorten TTI transmitting the physical channel being used to demodulate the physical channel at a receiving side.
A wireless communication device comprising:
- a receiver operative to receive a physical channel in a shorten transmission time interval (TTI);
- and
- circuitry operative to demodulate the physical channel based on reference signals (RSs) within orthogonal frequency division multiplexing (OFDM) symbol(s) of or before the shorten TTI, wherein
- at most one type of RSs from cell-specific reference signals (CRSs) and demodulation reference signals (DMRSs) are mapped in each shorten TTI in a subframe, and each shortened TTI comprises 1-7 OFDM symbols.
A wireless communication method comprising:
- receiving a physical channel in a shorten transmission time interval (TTI);
- and
- demodulating the physical channel based on reference signals (RSs) within orthogonal frequency division multiplexing (OFDM) symbol(s) of or before the shorten TTI, wherein
- at most one type of RSs from cell-specific reference signals (CRSs) and demodulation reference signals (DMRSs) are mapped in each shorten TTI in a subframe, and each shortened TTI comprises 1-7 OFDM symbols.
Dependencies are inferred from the claim text.