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US 2019/0058571 A1Published application
Asymmetric TDD in Flexible Use Spectrum
OwnerMariam Sorond, Peter Corea +2inventors
InventorsMariam Sorond, Peter Corea, Doug Hyslop, Tom Peters
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Abstract
Methods and apparatuses are described for allocating transmission and reception times arising over three time division duplex communication paths, where the transmission and reception times for each path are asynchronous with respect to each of the other paths, and wherein guard bands are utilized between disposing signal paths, where such paths overlap during a given time span.
Claims20
A method, comprising:
- sending a first time division duplex (TDD) signal via a first uplink portion of a first time division duplex (TDD) communication path;
- wherein the first TDD communication path arises over a first band;
- wherein the first uplink portion arises over a first uplink period;
- receiving a second signal via a first downlink portion of the first TDD communication path;
- wherein the second downlink portion arises over a first downlink period;
- wherein the first TDD communication path is disposed between and mutually exclusive of a second TDD communication path and a third TDD communication path;
- wherein the second TDD communication path arises over a second band and includes a second uplink portion and a second downlink portion;
- wherein the third TDD communication path arises over a third band and includes a third uplink portion and a third downlink portion;
- wherein the first TDD communication path is asynchronous with each of the second TDD communication path and the third TDD communication;
- wherein the second TDD communication path is asynchronous with the third TDD communication path;
- and
- wherein the first band is disposed between and mutually exclusive of each of the second band and the third band;
- wherein each of the first TDD communication path, the second TDD communication path and the third TDD communication path are configured to operate over a communication time (t0-t4) spanning, in sequence, an initial time (t0), a first time (t1), a second time (t2), and third time (t3), and a fourth time (t4);
- wherein for the first TDD communication path, the communication time is first allocated into a first TDD receive time slot and a first TDD transmit time slot;
- wherein for the second TDD communication path, the communication time is second allocated into a second TDD receive time slot and a second TDD transmit time slot;
- wherein the second TDD receive time slot begins with the first TDD receive time slot;
- and
- wherein the second TDD transmit time slot ends with the first TDD transmit time slot.
15 more elements
An apparatus, comprising:
- a communications device configured to:
- send a first time division duplex (TDD) signal via a first uplink portion of a first time division duplex (TDD) communication path;
- and
- receive a second signal via a first downlink portion of the first TDD communication path;
- wherein the first uplink portion arises over a first uplink period;
- wherein the second downlink portion arises over a first downlink period;
- wherein the first TDD communication path is disposed between and mutually exclusive of a second TDD communication path and a third TDD communication path;
- wherein the second TDD communication path includes a second uplink portion and a second downlink portion;
- wherein the third TDD communication path includes a third uplink portion and a third downlink portion;
- wherein the first TDD communication path is asynchronous with each of the second TDD communication path and the third TDD communication;
- and
- wherein the second TDD communication path is asynchronous with the third TDD communication path.
9 more elements
An apparatus, comprising:
- a communications device configured to:
- send a first time division duplex (TDD) signal via a first uplink portion of a first time division duplex (TDD) communication path;
- receive a second signal via a first downlink portion of the first TDD communication path;
- wherein the first uplink portion arises over a first uplink period;
- and
- wherein the second downlink portion arises over a first downlink period, wherein the first TDD communication path is disposed between and mutually exclusive of a second TDD communication path and a third TDD communication path;
- wherein the second TDD communication path includes a second uplink portion and a second downlink portion;
- wherein the third TDD communication path includes a third uplink portion and a third downlink portion;
- wherein the first TDD communication path is asynchronous with each of the second TDD communication path and the third TDD communication;
- wherein the second TDD communication path is asynchronous with the third TDD communication path;
- wherein the first uplink portion is separated from and contiguous with the second uplink portion;
- and
- the first down link portion is separated from and contiguous with the third downlink portion.
10 more elements
Dependencies are inferred from the claim text.