GEO-LOCATION IN A WIRELESS COMMUNICATION NETWORK

• US 20130288709A1
• Filed: 06/24/2013
• Published: 10/31/2013
• Est. Priority Date: 01/13/2009
• Status: Abandoned Application

• Current Assignee: JDSU UK Limited (Lumentum Holdings Inc.)
• Original Assignee: Arieso Limited (Lumentum Holdings Inc.)
• Inventors: Flanagan, Michael Joseph
• Application Number:
  US13/925,082
• Publication Number:
  US 20130288709A1
• Time in Patent Office: Days
• US Class Current: 455/456.1
• CPC Class Codes: G01S 2205/06 Emergency
• CPC Class Codes: G01S 5/02 using radio waves using satellite radio beacon systems for determining position G01S19/00
• CPC Class Codes: G01S 5/0278 involving statistical or probabilistic considerations G01S5/0252, G01S5/0294 take precedence
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 64/006 with additional information processing, e.g. for direction or speed determination

Abstract

A method for geo-location of a wireless communication unit (410) is provided. The communication unit (410) communicates with a wireless communication network (430) of a wireless communication system (400). A probability density function is derived for the location of the wireless communication unit (410), from measured information and/or information about the wireless communication network (430). The probability density function is sampled to provide spatial and probability information about each of at least two possible locations for the wireless communication unit (410). A wireless communication system (400) and a method of selecting enhancements to a wireless communication system (400) are also provided.

Claims

1. A method of selecting enhancements to a wireless communication system, the wireless communication system comprising wireless communication units and a wireless communication network, each wireless communication unit being connectable via a wireless communication link to the wireless communication network, the method comprising:

(a) deriving a probability density function for a location of a wireless communication unit, from at least one of the group of;

(i) measurement information from the wireless communication unit;

(ii) network information about the wireless communication network;

(b) sampling the probability density function to provide output information, the output information comprising spatial information and probability information about the location of the wireless communication unit;

(c) deriving a quality rating for the wireless communication link between the wireless communication unit and the wireless communication network; and

(d) using the output information and the quality rating in a decision on enhancements to the wireless communication system.

2. A method of selecting enhancements to a wireless communication system as in claim 1, wherein:

output information and quality ratings derived from many wireless communication units and/or many wireless communication links are used in the decision on enhancements to the wireless communication system.

3. A method of selecting enhancements to a wireless communication system as in claim 1, wherein:

the decision on enhancements to the wireless communication system comprises at least one from the group of;

deciding to re-direct an antenna in a base station of the wireless communication network;

deciding to upgrade an antenna in a base station of the wireless communication network;

or deciding to change the transmission power level of an antenna in a base station of the wireless communication network.

4. A method of selecting enhancements to a wireless communication system as in claim 1, wherein:

the decision on enhancements to the wireless communication system comprises at least one from the group of;

choosing a site for an additional base station in the wireless communication network;

re-locating an existing base station to a new site;

or moving a mobile or temporary base station.

5. A method of selecting enhancements to a wireless communication system as in claim 1, wherein:

the quality rating is derived from at least one from the group of;

data about the number of times when it was not possible to establish a communication link, and/or data about the number of times that the communication link breaks;

data about the number of times when it was not possible to place a call and/or data about the rate of calls being dropped during the call;

one or more received signal powers recorded by the wireless communication unit from network sectors of the wireless communication network;

or one or more measurements of the received signal-to-noise ratio recorded by the wireless communication unit from network sectors of the wireless communication network.

6. A method of selecting enhancements to a wireless communications system as in claim 1, where the method is adapted to perform on a wireless communication unit.

7. A wireless communication system, the wireless communication system comprising wireless communication units and a wireless communication network, each wireless communication unit being connectable via a wireless communication link to the wireless communication network, the wireless communication system comprising:

(a) a processor adapted to derive a probability density function for a location of a wireless communication unit, from at least one of the group of;

(i) measurement information from the wireless communication unit;

(ii) network information about the wireless communication network;

(b) a prediction module adapted to sample the probability density function to provide output information, the output information comprising spatial information and probability information about the location of the wireless communication unit;

(c) a quality rating module, adapted to rate the quality of the wireless communication link between the wireless communication unit and the wireless communication network, thereby providing a quality rating; and

(d) a decision module adapted to select enhancements to the wireless communication system on the basis of the output information and the quality rating.