# US 2013/0155995 A1 · Method of making a coexistence decision on centralized topology

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- Number: US 2013/0155995 A1
- Document ID: US20130155995A1
- Status: Published application
- Kind: A1
- Application number: 13/819,503
- Filed: 2011-08-31
- Published: 2013-06-20
- Earliest claimed: 2010-09-03
- Assignees: LG Electronics Inc.
- Inventors: Junho Jo; Jihyun Lee
- Web page: https://patentgrep.com/patent/US20130155995A1

## CPC

- H04W 72/20: Control channels or signalling for resource management
- H04N 21/43637: {involving a wireless protocol, e.g. Bluetooth®, RF or wireless LAN [IEEE 802.11] (arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114)}
- H04N 21/643: Communication protocols {(network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP], H04L65/65)}
- H04W 4/00: Services specially adapted for wireless communication networks; Facilities therefor
- H04W 16/14: Spectrum sharing arrangements {between different networks}
- H04W 72/04: Wireless resource allocation
- H04W 72/56: based on priority criteria
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

Disclosed is a radio technology independent method for coexistence among dissimilar or independently operated TV Band Device (TVBD) networks and dissimilar TV Band Devices. A resource allocation method on centralized topology is disclosed, which comprises steps of receiving at least one available resource; performing a neighbor set calculation based on the received at least one available resource; calculating the resource according to the neighbor set calculation, where the calculated resource is allocated to at least one device.

## Claims

### Claim 1

A method of allocating a resource in wireless communication system, the method comprising:
receiving, by a coexistence discovery and information server (CDIS) entity, at least one available resource from a TV database (TVDB) entity;
performing, by the CDIS entity, a neighbor set calculation based on the received at least one available resource, wherein the neighbor of at least one coexistence manager (CM) entity is calculated by the neighbor set calculation; and
calculating, by the CDIS entity, the resource according to the neighbor set calculation, wherein the calculated resource is allocated to at least one TV band device (TVBD).

### Claim 2 (depends on 1)

The method of claim 1, wherein the at least one received available resource is an available TV whitespace channel list or a whitespace map.

### Claim 3 (depends on 1)

The method of claim 1, wherein the at least one received available resource is received after transmitting a request for the available resource to the TVDB entity.

### Claim 4 (depends on 1)

The method of claim 1, wherein the at least one received available resource is periodically received from the TVDB entity.

### Claim 5 (depends on 1)

The method of claim 1, wherein the neighbor set calculation includes a computation of a coexistence contour to discover the neighbor of the at least one CM entity.

### Claim 6 (depends on 1)

The method of claim 1, wherein the resource is calculated by making a coexistence whitespace map (CWM).

### Claim 7 (depends on 1)

The method of claim 1, wherein the calculated resource is allocated to the at least one TVBD entity by the CDIS entity.

### Claim 8 (depends on 1)

The method of claim 1, wherein the neighbor set calculation and the calculated resource are notified to at least one coexistence manager (CM) entity, and the at least one CM entity allocates the resource to the at least one TVBD entity.

### Claim 9 (depends on 8)

The method of claim 8, wherein the at least one CM entity is a master CM entity selected from a plurality of CM entities.

### Claim 10 (depends on 9)

The method of claim 9, wherein the master CM entity is selected by the CDIS entity.

### Claim 11 (depends on 1)

The method of claim 1, wherein the neighbor set calculation and the calculated resource are notified to the TVDB entity, and the TVDB entity announces the allocated resource to at least one TVBD.

### Claim 12 (depends on 1)

The method of claim 1, wherein all steps are implemented in IEEE 802.19.1.

### Claim 13

An apparatus for allocating a resource in wireless communication system, the apparatus comprising:
a controller to perform the steps of;
receiving at least one available resource from a TV database (TVDB) entity;
performing a neighbor set calculation based on the received at least one available resource, wherein the neighbor of at least one coexistence manager (CM) entity is calculated by the neighbor set calculation; and
calculating the resource according to the neighbor set calculation, wherein the calculated resource is allocated to at least one TV band device (TVBD).