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US 2017/0013618 A1Published application
Low latency transmission method and apparatus
AssigneeElectronics and Telecommunications Research Institute
InventorEun-Jeong SHIN
Life of this patent
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Abstract
A base station supports a low latency mode of a terminal through a legacy downlink subframe transmitted in a first transmission time interval (TTI) unit in a downlink primary component carrier, and transmits control information and low latency downlink data to the terminal operated in the low latency mode through a downlink subslot transmitted in a second TTI unit in a downlink secondary component carrier.
Claims20
A low latency transmission method in a base station, comprising:
- supporting a low latency mode of a terminal through a legacy downlink subframe transmitted in a first transmission time interval (TTI) unit in a downlink primary component carrier;
- and
- transmitting control information and low latency downlink data to the terminal operated in the low latency mode through a downlink subslot transmitted in a second TTI unit in a downlink secondary component carrier.
A low latency transmission method in a terminal, comprising:
- receiving low latency information for a low latency mode of the terminal through a legacy downlink subframe transmitted in a first TTI unit in a downlink primary component carrier from a base station;
- and
- obtaining control information and low latency downlink data through a downlink subslot transmitted in a second TTI unit in a downlink secondary component carrier using the low latency information.
A low latency transmission apparatus comprising:
- a processor performing scheduling for transmitting data in a first TTI unit in a primary component carrier, performing scheduling for transmitting data in a second TTI unit in a secondary component carrier, and performing resource allocation for uplink and downlink physical channels for the primary component carrier and the secondary component carrier;
- and
- a transceiver transmitting data and uplink and downlink resource allocation information through the primary component carrier or the secondary component carrier,
- wherein the second TTI unit is shorter than the first TTI unit.
1 more element
Dependencies are inferred from the claim text.