# US 2016/0262154 A1 · System and method for autonomous dynamic wireless spectrum assignment

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- Number: US 2016/0262154 A1
- Document ID: US20160262154A1
- Status: Published application
- Kind: A1
- Application number: 14/636,446
- Filed: 2015-03-03
- Published: 2016-09-08
- Earliest claimed: 2015-03-03
- Inventors: Ahmed ALSOHAILY; Elvino Silveira Medina de SOUSA
- Web page: https://patentgrep.com/patent/US20160262154A1

## CPC

- H04W 16/14: Spectrum sharing arrangements {between different networks}
- H04W 24/02: Arrangements for optimising operational condition
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A system and method for autonomous dynamic spectrum assignment for operating and configuring a cellular wireless communication network, employing multiple Radio Access Technologies (RATs). The method consists of: partitioning the system radio frequency resources (spectrum) into fixed and pooled spectrum blocks; autonomously assigning pooled spectrum blocks at individual system access points or radio units or groups thereof; dynamically adapting the assignment of pooled spectrum blocks at individual system APs/RUs or groups of APs/RUs; implementation of the pooled block assignment function and integration with radio resource assignment functions of co-deployed RATs.

## Claims

### Claim 1

A system for autonomous spectrum assignment for a cellular wireless communication network, the system comprising a radio resource management unit configured to:
a. segment an available spectrum into a plurality of spectrum blocks comprising a set of fixed blocks and a set of pooled blocks;
b. assign at least one of the fixed blocks to each of a plurality of supported radio access technologies;
c. determine traffic conditions for the plurality of supported radio access technologies;
d. assign each of the pooled blocks to one of the radio access technologies on the basis of the traffic conditions.

### Claim 2 (depends on 1)

The system of claim 1, wherein the radio resource management unit communicates with additional radio resource management units to commonly assign the pooled blocks.

### Claim 3 (depends on 1)

The system of claim 1, wherein the traffic conditions comprise system traffic reflected as utilization of available spectrum and utilization of each radio access technology.

### Claim 4 (depends on 1)

The system of claim 1, wherein each fixed block has a bandwidth greater than or equal to the respective radio access technology carrier bandwidth.

### Claim 5 (depends on 1)

The system of claim 1, wherein each pooled block has a bandwidth greater than or equal to the least common multiple of the supported radio access technologies' carrier bandwidths.

### Claim 6 (depends on 1)

The system of claim 1, wherein the fixed blocks are contiguous.

### Claim 7 (depends on 1)

The system of claim 1, wherein the fixed blocks are non-contiguous.

### Claim 8 (depends on 1)

The system of claim 1, wherein the fixed blocks are commonly assigned a system-wide.

### Claim 9 (depends on 1)

The system of claim 1, wherein the radio resource management unit is provided by an access point.

### Claim 10 (depends on 1)

The system of claim 1, wherein the radio resource management unit is provided at a centralized device that administers spectrum assignment for a plurality of access points.

### Claim 11

A method for autonomous spectrum assignment for a cellular wireless communication network, the method comprising configuring a radio resource management unit to:
a. segment an available spectrum into a plurality of spectrum blocks comprising a set of fixed blocks and a set of pooled blocks;
b. assign at least one of the fixed blocks to each of a plurality of supported radio access technologies;
c. determine traffic conditions for the plurality of supported radio access technologies;
d. assign each of the pooled blocks to one of the radio access technologies on the basis of the traffic conditions.

### Claim 12 (depends on 11)

The method of claim 11, wherein the radio resource management unit communicates with additional radio resource management units to commonly assign the pooled blocks.

### Claim 13 (depends on 11)

The method of claim 11, wherein the traffic conditions comprise system traffic reflected as utilization of available spectrum and utilization of each radio access technology.

### Claim 14 (depends on 11)

The method of claim 11, wherein each fixed block has a bandwidth greater than or equal to the respective radio access technology carrier bandwidth.

### Claim 15 (depends on 11)

The method of claim 11, wherein each pooled block has a bandwidth greater than or equal to the least common multiple of the supported radio access technologies' carrier bandwidths.

### Claim 16 (depends on 11)

The method of claim 11, wherein the fixed blocks are contiguous.

### Claim 17 (depends on 11)

The method of claim 11, wherein the fixed blocks are non-contiguous.

### Claim 18 (depends on 11)

The method of claim 11, wherein the fixed blocks are commonly assigned a system-wide.

### Claim 19

A system for autonomous spectrum assignment for a cellular wireless communication network co-deploying a plurality of radio access technologies, the system comprising a plurality of access points and radio resource management units configured to assign spectrum at access points irrespective of a corresponding spectrum assignment for each of the other access points.