Devices, base stations, and methods for communicating scheduling requests via an underlay control channel in a wireless communication system
First Claim
Patent Images
1. A user equipment device, comprising:
- at least one processor configured to;
generate a scheduling request (SR) signal and transmit the SR signal to a base station via an underlay control channel below a noise level for a communication spectrum; and
generate data packets and transmit the data packets to the base station over an overlay channel above the noise level for the communication spectrum, the user equipment device configured to transmit the SR signal to the base station via the underlay control channel while the user equipment device is also communicating with the base station via an active band overlay signal.
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Accused Products
Abstract
Wireless communication systems, base stations, and user equipment are disclosed that enable communication of scheduling requests via an underlay control channel that has an energy below a noise level of the spectrum. The scheduling requests may be sent and received at any time, including during downlink and uplink data communication periods of the base station.
20 Citations
19 Claims
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1. A user equipment device, comprising:
at least one processor configured to; generate a scheduling request (SR) signal and transmit the SR signal to a base station via an underlay control channel below a noise level for a communication spectrum; and generate data packets and transmit the data packets to the base station over an overlay channel above the noise level for the communication spectrum, the user equipment device configured to transmit the SR signal to the base station via the underlay control channel while the user equipment device is also communicating with the base station via an active band overlay signal. - View Dependent Claims (2, 3, 4, 5)
- 6. A base station comprising at least one of one or more transmitters and one or more receivers configured to communicate uplink data and downlink data with one or more user equipments (UEs) using active sub-carriers of a spectrum, and simultaneously communicate scheduling requests with a user equipment (UE) of the one or more UEs using an underlay control channel below a noise level of the spectrum.
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12. A method comprising:
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sending a scheduling request from a user equipment to a base station via an underlay control channel below a noise level of a spectrum; receiving the scheduling request by the base station; and transmitting a scheduling request grant from the base station to the user equipment, wherein receiving the scheduling request and transmitting the scheduling request are performed in parallel with other data communication between the base station and other user equipment. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification