System and method for heterogenous spectrum sharing between commercial cellular operators and legacy incumbent users in wireless networks
AssigneesFederated Wireless, Inc., Virginia Tech Intellectual Properties, Inc.
InventorsAshwin Amanna, III, Joseph Mitola, III, Thomas Charles Clancy, III, Jeffrey H. Reed, Robert W. McGweir, Avik Sengupta, Akshay Kumar
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Abstract
Described herein are systems and methods for telecommunications spectrum sharing between multiple heterogeneous users, which leverage a hybrid approach that includes both distributed spectrum sharing, spectrum-sensing, and use of geo-reference databases.
Claims20
A method for dynamic spectrum sharing between primary users of a spectrum band and secondary users in a cellular network of a commercial cellular operator, the method comprising:
- transmitting a spectrum request to a government entity owning a frequency band of interest, wherein the spectrum request includes desired frequency band parameters,
- receiving a spectrum band assignment in response to the spectrum request, wherein the spectrum band assignment includes a plurality of primary resource blocks,
- building a radio environment map (REM) relating to local radio conditions sensed within a cell in the cellular network of the cellular operator, and
- allocating the received spectrum band assignment via a resource optimization process that is based on at least one of an average achievable rate of a primary resource block of the spectrum band assignment, an average demand factor of secondary users within the cell, and the radio environment map.
A method for dynamic spectrum sharing between primary users of a spectrum band and secondary users in a cellular network of a commercial cellular operator, the method comprising:
- transmitting a spectrum request to a government entity owning a frequency band of interest, wherein the spectrum request includes desired frequency band parameters,
- receiving a spectrum band assignment in response to the spectrum request, wherein the spectrum band assignment includes a plurality of primary resource blocks and conditions on use,
- building a radio environment map (REM) relating to local radio conditions sensed within a cell in the cellular network of the cellular operator, and
- allocating the received spectrum band assignment via a first resource optimization process that allocates the primary resource blocks to one of a set of zones of the cell based on at least one of an average achievable rate of a primary resource block of the spectrum band assignment, an average demand factor of secondary users within the cell, and the radio environment map, and via a second resource optimization process that allocates the resources in each cell zone to secondary users with the corresponding zone according to a predetermined utility function.
A system for dynamic spectrum sharing between primary users of a spectrum band and secondary users, the system comprising:
- a cellular network of a commercial cellular operator,
- sensors for sensing local radio conditions within a cell of the cellular network, and
- a spectrum server for transmitting a spectrum request to a government entity owning a frequency band of interest, wherein the spectrum request includes desired frequency band parameters, for receiving a spectrum band assignment in response to the spectrum request, wherein the spectrum band assignment includes a plurality of primary resource blocks and conditions on use, for building a radio environment map (REM) using information from the sensors, and for allocating the received spectrum band assignment via a resource optimization process that is based on at least one of an average achievable rate of a primary resource block of the spectrum band assignment, an average demand factor of secondary users within the cell, and the radio environment map.
Dependencies are inferred from the claim text.