Asymmetric TDD in flexible use spectrum
First Claim
1. A method, comprising:
- transmitting a first signal over a time division duplex (TDD) communication path via a first portion of a first frequency band;
receiving a second signal over the TDD communication path via a second portion of the first frequency band;
wherein the first portion uses a smaller spectrum bandwidth than the second portion;
wherein the first frequency hand is adjacent to a second frequency band;
wherein the second frequency band includes a second TDD communication path having a third portion and a fourth portion;
wherein a first guard band separates the first portion from each of the third portion and, for a limited time segment, the fourth portion;
wherein the first frequency band is adjacent to a third frequency band; and
wherein the third frequency band includes a third TDD communication path having a fifth portion and a sixth portion.
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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 sent over the TDD communication path via a first portion and are received via a second portion of a first frequency band, wherein the first portion uses a smaller spectrum bandwidth than the second portion. The first frequency band is adjacent to a second frequency band and to a third frequency band. The second frequency band includes a first temporally-asymmetric TDD communication path having a third portion and a fourth portion. The third frequency band includes a second temporally-asymmetric TDD communication path having a fifth portion and a sixth portion.
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Citations
18 Claims
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1. A method, comprising:
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transmitting a first signal over a time division duplex (TDD) communication path via a first portion of a first frequency band; receiving a second signal over the TDD communication path via a second portion of the first frequency band; wherein the first portion uses a smaller spectrum bandwidth than the second portion; wherein the first frequency hand is adjacent to a second frequency band; wherein the second frequency band includes a second TDD communication path having a third portion and a fourth portion; wherein a first guard band separates the first portion from each of the third portion and, for a limited time segment, the fourth portion; wherein the first frequency band is adjacent to a third frequency band; and wherein the third frequency band includes a third TDD communication path having a fifth portion and a sixth portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method, comprising:
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sending a first signal over a first time division duplex (TDD) communication path via a first portion of a first frequency band; receiving a second signal over the first TDD communication path via a second portion of the first frequency band different; wherein the first portion of the first frequency band uses a larger spectrum bandwidth than the second portion of the first frequency band; wherein the first frequency band is adjacent to and mutually exclusive of a second frequency band; wherein the second frequency band includes a second TDD communication path that comprises a first temporally-asymmetric path including a third portion and a fourth portion; wherein a first guard hand separates the first portion from each of the fourth portion and, for a limited time segment, the third portion; wherein the first frequency band is adjacent to and mutually exclusive of a third frequency band; wherein the third frequency band includes a third TDD communication path, that comprises a second temporally-asymmetric path including a fifth portion and a sixth portion; and wherein a second guard band separates the first portion from each of the sixth portion and, for a limited time segment, the fit portion.
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16. 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; -
receiving a second signal over the first TDD communication path via a second portion of the first frequency band different from the first portion of the first frequency band; wherein the first frequency band is adjacent to a second frequency band and a third frequency band; wherein, the first frequency band is different from the second frequency band and the third frequency band; wherein the second frequency band includes a second TDD communication path; wherein the second TDD communication path comprises a first temporally-asymmetric path including a third portion and a fourth portion; wherein the third frequency band includes a third TDD communication path; wherein the third TDD communication path comprises a second temporally-asymmetric path including a fifth portion and a sixth portion; and wherein the third portion of the first temporally-asymmetric path is synchronous with the sixth portion of the second temporally-asymmetric path; wherein a first guard band separates the first portion from; each of the third portion and, for a limited time segment, the fourth portion;
oreach of the fourth portion and, for a limited time segment, the third portion. - View Dependent Claims (17, 18)
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Specification