Asymmetric TDD in flexible use spectrum
First Claim
1. A method, comprising:
- sending a first signal over an asymmetric 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 without any intermediate guard band therebetween and the first frequency band being adjacent to 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 frequency division duplex (FDD) communication path, the third frequency band including a TDD communication path; and
receiving a second signal over the asymmetric TDD communication path via a second portion of the first frequency band different from the first portion of the first frequency band.
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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.
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Citations
19 Claims
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1. A method, comprising:
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sending a first signal over an asymmetric 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 without any intermediate guard band therebetween and the first frequency band being adjacent to 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 frequency division duplex (FDD) communication path, the third frequency band including a TDD communication path; and receiving a second signal over the asymmetric TDD communication path via a second portion of the first frequency band different from the first portion of the first frequency band. - View Dependent Claims (2, 3, 4, 5)
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6. A method, comprising:
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sending a first signal over an asymmetric 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 frequency division duplex (FDD) communication path, the third frequency band including a TDD communication path;
ANDreceiving a second signal over the asymmetric TDD communication path via a second portion of the first frequency band different from the first portion of the first frequency band; wherein the FDD communication path in the second frequency band is an FDD downlink path; wherein the second portion of the first frequency band is adjacent to the second frequency band and the first portion of the first frequency band is separated from the second frequency band by a predetermined guard band.
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7. A method, comprising:
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sending a first signal during a first time interval and over an asymmetric time division (TDD) communication path via a first portion of a first frequency band, the first frequency band being disposed between and mutually exclusive of a second frequency band and a third frequency band, the second frequency band being mutually exclusive of the third frequency band, wherein the third frequency band includes a synchronous TDD communication path and the third frequency band comprises a first portion and a second portion; and receiving a second signal during a second time interval and over the asymmetric TDD communication path via a second portion of the first frequency band. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification