PHYSICAL CHANNEL STRUCTURE FOR COMMUNICATION IN UNLICENSED FREQUENCY BAND

摘要

Communication equipment communicates in a licensed frequency band using a licensed band physical channel structure (licensed structure) and communicates in an unlicensed frequency communication band using an unlicensed band physical channel structure (unlicensed structure) where the unlicensed structure includes at least the same symbol times and subcarrier frequency divisions as in the licensed structure. The symbol times and subcarriers form a plurality of time-frequency communication resource elements. A set of symbol times and subcarrier frequency divisions form a licensed reference subset of communication resource elements that are allocated for reference signal transmission in the licensed structure. The same set of symbol times and subcarrier frequency divisions form an unlicensed reference subset of communication resource elements that are allocated for reference signal transmission in the unlicensed structure.

主权项

1. A method comprising:
transmitting, from communication equipment, first signals within a licensed frequency band using a licensed physical channel structure comprising a first plurality of time-frequency communication resource elements formed by a plurality of symbol times and a plurality of subcarrier divisions dividing the licensed frequency band; and transmitting, from the communication equipment, second signals within an unlicensed frequency band using an unlicensed physical channel structure comprising a second plurality of time-frequency communication resources formed by the plurality of symbol times and the plurality of subcarrier divisions dividing the unlicensed frequency band.