Virtual guard bands
AssigneeParallel Wireless, Inc.
InventorsRajesh Kumar Mishra, Yang Cao, Michael Y. Saji
Life of this patent
Estimating the term…
Abstract
A radio resource scheduler at a first base station may be configured to: identify radio frequency resources in use by the first base station, identify radio frequency resources to be reserved as virtual guard bands to reduce adjacent band interference, and install virtual guard band rules for reducing interference with adjacent bands. The virtual guard band information may be hints, allocations, priorities, reservations, or scheduling instructions for avoiding certain radio resources, radio resource blocks, or frequencies.
Claims19
A system, comprising:
- a first base station of a plurality of base stations;
- a second base station of the plurality of base stations;
- and
- a radio resource scheduler at a coordinating node configured to:
- identify radio frequency bands in use by the first base station,
- identify a radio access technology in use at the first base station,
- determine that a desired band is adjacent to the identified radio frequency bands in use,
- identify virtual guard bands based on the radio access technology and the determination made that the desired band is adjacent to the identified radio frequency bands in use, and
- share the virtual guard bands with the second base station,
- wherein the first base station and the second base station are each in communication with a core network over a first radio access technology (RAT) and are also each allowing a user equipment (UE) to have connectivity with the core network over a second RAT, thereby providing a lower noise floor for adjacent in-use frequency bands for the plurality of base stations.
A method for providing a lower noise floor for adjacent in-use frequency bands at a base station, comprising:
- identifying, at a coordinating node, radio frequency bands in use by a currently-operating base station;
- identifying, at the coordinating node, a radio access technology in use at the currently-operating base station;
- determining, at the coordinating node, if the radio frequency bands in use are adjacent to each other;
- assessing, at the coordinating node, a nearby radio frequency environment for interfering frequencies;
- identifying, at the coordinating node, based on the determined radio access technology and the determination made that the radio frequency bands in use are adjacent to each other, a virtual guard band of radio resources within the allocated frequency band that cause less interference to transmissions in the in-use radio frequency band;
- identifying, at the coordinating node, a radio resource that should not be used and communicating the radio resource that should not be used via an X2 protocol message to a second base station;
- and
- installing, at the base station, rules in a scheduler to reduce use of the identified virtual guard band radio resources.
Dependencies are inferred from the claim text.