Techniques for symbol transmission with modified padding duration

A method for wireless communication at a user equipment (UE), comprising:

• receiving an indication of a subcarrier spacing for communications in a plurality of transmission time intervals, wherein a transmission time interval of the plurality of transmission time intervals comprises a plurality of symbols, a corresponding plurality of cyclic prefixes, and a padding duration, wherein a symbol duration of the plurality of symbols is based at least in part on the subcarrier spacing and wherein the padding duration is at least as long as the symbol duration;
• receiving a control signal indicating a configuration for the padding duration, wherein the configuration indicates that the padding duration is to be reallocated as one or more additional symbols with corresponding one or more additional cyclic prefixes, wherein the one or more additional cyclic prefixes and at least a first portion of the plurality of cyclic prefixes are reduced in duration in comparison with a remaining portion of the plurality of cyclic prefixes;
• and
• communicating during the transmission time interval using the one or more additional symbols and the plurality of symbols with the corresponding one or more additional cyclic prefixes, the first portion of the plurality of cyclic prefixes, and the remaining portion of the plurality of cyclic prefixes.

A method for wireless communication at a base station, comprising:

• transmitting, to a user equipment (UE), an indication of a subcarrier spacing for communications in a plurality of transmission time intervals, wherein a transmission time interval of the plurality of transmission time intervals comprises a plurality of symbols, a corresponding plurality of cyclic prefixes, and a padding duration, wherein a symbol duration of the plurality of symbols is based at least in part on the subcarrier spacing and wherein the padding duration is longer than the symbol duration;
• transmitting, to the UE, a control signal indicating a configuration for the padding duration, wherein the configuration indicates that at least a first portion of the padding duration is to be reallocated as one or more additional symbols with corresponding one or more additional cyclic prefixes;
• and
• communicating during the padding duration using the one or more additional symbols and the corresponding one or more additional cyclic prefixes.

A method for wireless communication at a base station, comprising:

• transmitting, to a user equipment (UE), an indication of a subcarrier spacing for communications in a plurality of transmission time intervals, wherein a transmission time interval of the plurality of transmission time intervals comprises a plurality of symbols, a corresponding plurality of cyclic prefixes, and a padding duration, wherein a symbol duration of the plurality of symbols is based at least in part on the subcarrier spacing and wherein the padding duration is at least as long as the symbol duration;
• transmitting, to the UE, a control signal indicating a configuration for the padding duration, wherein the configuration indicates that the padding duration is to be reallocated as one or more additional symbols with corresponding one or more additional cyclic prefixes, wherein the one or more additional cyclic prefixes and at least a first portion of the plurality of cyclic prefixes are reduced in duration in comparison with a remaining portion of the plurality of cyclic prefixes;
• and
• communicating during the transmission time interval using the one or more additional symbols and the plurality of symbols with the corresponding one or more additional cyclic prefixes, the first portion of the plurality of cyclic prefixes, and the remaining portion of the plurality of cyclic prefixes.