Asymmetric TDD in flexible use spectrum

摘要

A method according to an embodiment of the invention includes receiving and transmitting signals over a time division duplex (TDD) communication path. Signals are received over the TDD communication path via a first portion of a first frequency band. The first frequency band is adjacent to a second frequency band and to a third frequency band. The first frequency band is different from the second frequency band and from the third frequency band. A first frequency division duplex (FDD) communication path can be operable in the second frequency band. A second FDD communication path can be operable in the third frequency band. Signals are transmitted over the TDD communication path via a second portion of the first frequency band that is different from the first portion of the first frequency band.

主权项

1. An apparatus, comprising:
a communication device configured to send a first signal over a first time division duplex (TDD) communication path via a first portion of a first frequency band during a first time period, the first frequency band being disposed between and mutually exclusive of a second frequency band and a third frequency band, the second frequency band including a second TDD communication path, the second TDD communication path being an asymmetric TDD communication path, the third frequency band including a third TDD communication path synchronous with the first TDD communication path, the communication device configured to receive a second signal over the first TDD communication path via a second portion of the first frequency band during a second time period, the second portion of the first frequency band being different than the first portion of the first frequency band, the first portion of the first frequency band and the second portion of the first frequency band being contiguous with the third frequency band.