Asymmetric TDD in flexible use spectrum
First Claim
1. A method, comprising:
- sending a first signal over a first time division duplex (TDD) communication path via a first portion of a first frequency band, the first frequency band being adjacent to a second frequency band and a third frequency band, the first frequency band being different from the second frequency band and the third frequency band, the second frequency band including a second TDD communication path asynchronous with the first TDD communication path, the third frequency band including a third TDD communication path synchronous with the first TDD communication path; and
receiving a second signal over the first TDD communication path via a second portion of the first frequency band.
7 Assignments
0 Petitions
Accused Products
Abstract
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.
39 Citations
12 Claims
-
1. A method, comprising:
-
sending a first signal over a first time division duplex (TDD) communication path via a first portion of a first frequency band, the first frequency band being adjacent to a second frequency band and a third frequency band, the first frequency band being different from the second frequency band and the third frequency band, the second frequency band including a second TDD communication path asynchronous with the first TDD communication path, the third frequency band including a third TDD communication path synchronous with the first TDD communication path; and receiving a second signal over the first TDD communication path via a second portion of the first frequency band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. 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 asynchronous with the first TDD communication path and 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 first portion of the first frequency band being separated from the second frequency band by a first guard band, the second portion of the first frequency band being separated from the second frequency band by a second guard band, the first portion and the second portion of the first frequency band being contiguous with the third frequency band. - View Dependent Claims (10, 11, 12)
Specification