Uplink transmission techniques in low latency wireless communication systems

A method for wireless communication, comprising:

• receiving an uplink resource allocation from a base station for an uplink transmission, the uplink resource allocation identifying an uplink transmission time interval (TTI) that has three orthogonal frequency division multiplexing (OFDM) symbols;
• identifying a first frequency resource for transmitting a first subset of the OFDM symbols based at least in part on the uplink resource allocation;
• identifying a second frequency resource for transmitting a second subset of the OFDM symbols based at least in part on the uplink resource allocation;
• and
• transmitting the uplink transmission using the first frequency resource and the second frequency resource.

An apparatus for wireless communication, in a system comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• receive an uplink resource allocation from a base station for an uplink transmission, the uplink resource allocation identifying uplink resources that span two or more transmission time intervals (TTIs) including a first TTI and a second TTI that have different numbers of orthogonal frequency division multiplexing (OFDM) symbols;
• identify a first uplink transmission power for the first TTI;
• apply a power offset to the first uplink transmission power to determine a second uplink transmission power for the second TTI;
• and
• transmit the uplink transmission based at least in part on the first uplink transmission power and the second uplink transmission power.

An apparatus for wireless communication, in a system comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• receive an uplink resource allocation from a base station for an uplink transmission, the uplink resource allocation identifying an uplink transmission time interval (TTI) that has three orthogonal frequency division multiplexing (OFDM) symbols;
• identify a first frequency resource for transmitting a first subset of the OFDM symbols based at least in part on the uplink resource allocation;
• identify a second frequency resource for transmitting a second subset of the OFDM symbols based at least in part on the uplink resource allocation;
• and
• transmit the uplink transmission using the first frequency resource and the second frequency resource.