Base station and reception method for receiving repetition signals using a channel format that accommodates SRS transmission
AssigneePanasonic Intellectual Property Corporation of America
InventorsTetsuya Yamamoto, Hidetoshi Suzuki, Ayako Horiuchi
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Abstract
A repeater generates repetition signals by repeating an uplink signal over a plurality of subframes. If the plurality of subframes do not include a transmission candidate subframe of a sounding reference signal used to measure uplink reception quality, a controller sets a first transmission format to all the plurality of subframes, and if the plurality of subframes include the transmission candidate subframe, the controller sets a second transmission format to all the plurality of subframes. A transmitter transmits the repetition signals using the set transmission format.
Claims12
A base station comprising:
- a transmitter which, in operation, transmits control information indicating SRS (Sounding Reference Signal) transmission candidate subframes;
- and
- a receiver which, in operation, receives repetition signals repeating a PUCCH (Physical Uplink Control Channel) signal over a plurality of consecutive subframes;
- wherein,
- a normal PUCCH format, which maps a response signal to symbols including the last symbol of a subframe, is used in the plurality of subframes, in a first case where the plurality of consecutive subframes do not include any one of the SRS transmission candidate subframes, and
- a shortened PUCCH format, which maps a response signal to symbols other than the last symbol of a subframe, is used in the plurality of consecutive subframes, in a second case where the plurality of consecutive subframes include at least one of the SRS transmission candidate subframes and include at least one subframe that is not any of the SRS transmission candidate subframes.
A method comprising:
- transmitting control information indicating SRS (Sounding Reference Signal) transmission candidate subframes;
- and
- receiving repetition signals repeating a PUCCH (Physical Uplink Control Channel) signal over a plurality of consecutive subframes;
- wherein,
- a normal PUCCH format, which maps a response signal to symbols including the last symbol of a subframe, is used in the plurality of consecutive subframes, in a first case where the plurality of consecutive subframes do not include any one of the SRS transmission candidate subframes, and
- a shortened PUCCH format, which maps a response signal to symbols other than the last symbol of a subframe, is used in the plurality of consecutive subframes, in a second case where the plurality of consecutive subframes include at least one of the SRS transmission candidate subframes and include at least one subframe that is not any of the SRS transmission candidate subframes.
Dependencies are inferred from the claim text.