Multiple radio access technologies interference reduction
AssigneeVodafone IP Licensing Limited
InventorsRazieh Razavi, Timothy James Frost, Alper Ucar
Life of this patent
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Abstract
A method is provided for operating a station for simultaneous communication over: a first, Frequency Division Duplex (FDD) Radio Access Network (RAN) using a first carrier signal; and a second, Time Division Duplex (TDD) RAN using a second carrier signal at a higher frequency than a frequency of the first carrier signal, wherein transmissions from the station using the first carrier signal cause interference to reception at the station over the second, TDD RAN. The method comprises aligning a timing of transmissions from the station over the first, FDD RAN to a timing for transmissions from the station over the second, TDD RAN.
Claims11
A method for operating a station for simultaneous communication over:
- a first, Frequency Division Duplex (FDD) Radio Access Network (RAN) using a first carrier signal;
- and a second, Time Division Duplex (TDD) RAN using a second carrier signal at a higher frequency than a frequency of the first carrier signal, wherein transmissions from the station using the first carrier signal cause interference to reception at the station over the second, TDD RAN, the method comprising:
- aligning a timing of Receipt Acknowledgement message transmissions from the station over the first, FDD RAN to a timing for transmissions from the station over the second, TDD RAN;
- and
- wherein the step of aligning comprises delaying or advancing Receipt Acknowledgement messages transmissions in respect of the first, FDD RAN compared with a fixed, predetermined timing for Receipt Acknowledgement messages transmissions by Transmission Time Interval (TTI) bundling of the Receipt Acknowledgement messages transmissions in respect of the first, FDD RAN, such that the delayed or advanced Receipt Acknowledgement messages transmissions in respect of the first, FDD RAN are transmitted in a same time slot as transmissions in respect of the second, TDD RAN.
A method for configuring a station for simultaneous communication over:
- a first, Frequency Division Duplex (FDD) Radio Access Network (RAN) using a first carrier signal;
- and a second, Time Division Duplex (TDD) RAN using a second carrier signal at a higher frequency than a frequency of the first carrier signal, wherein transmissions from the station using the first carrier signal cause interference to reception at the station over the second, TDD RAN, the method comprising:
- communicating a downlink control signal to the station, the control signal instructing the station to align a timing of Receipt Acknowledgement messages transmissions from the station over the first, FDD RAN to a timing for transmissions from the station over the second, TDD RAN by delaying or advancing Receipt Acknowledgement message transmissions in respect of the first, FDD RAN compared with a fixed, predetermined timing for Receipt Acknowledgement message transmissions by Transmission Time Interval (TTI) bundling of the Receipt Acknowledgement message transmissions in respect of the first, FDD RAN, such that the delayed or advanced Receipt Acknowledgement message transmissions in respect of the first, FDD RAN are transmitted in a same time slot as transmissions in respect of the second, TDD RAN.
A station for a cellular network, the station comprising:
- a processor configured to operate the station for simultaneous communication over:
- a first, Frequency Division Duplex (FDD) Radio Access Network (RAN) using a first carrier signal;
- and a second, Time Division Duplex (TDD) RAN using a second carrier signal at a higher frequency than a frequency of the first carrier signal, wherein transmissions from the station using the first carrier signal cause interference to reception at the station over the second, TDD RAN;
- wherein the processor is further configured to align a timing of transmissions from the station over the first, FDD RAN to a timing for transmissions from the station over the second, TDD RAN, and
- wherein the aligning comprises delaying or advancing Receipt Acknowledgement messages transmissions in respect of the first, FDD RAN compared with a fixed, predetermined timing for Receipt Acknowledgement messages transmissions by Transmission Time Interval (TTI) bundling of the Receipt Acknowledgement messages transmissions in respect of the first, FDD RAN, such that the delayed or advanced Receipt Acknowledgement messages transmissions in respect of the first, FDD RAN are transmitted in a same time slot as transmissions in respect of the second, TDD RAN.
Dependencies are inferred from the claim text.