Contextual and predictive prioritization of spectrum access

Patent metadata

Field	Value
Publication number	US-9749870-B2
Application number	US-201414178372-A
Country	US
Kind code	B2
Filing date	Feb 12, 2014
Priority date	Feb 21, 2013
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

A method for optimizing network spectrum utilization of a wireless communications network utilizing a radiofrequency spectrum includes determining, by a processor, spectrum resources at a location by determining the properties of the communication nodes and the utilization of bandwidth by all priority classes of user terminals in a defined area. Future geo-located contextual network needs for users terminals of a plurality of priority classes in the defined area is predicted by the processor based on historical profiles. The use of the radiofrequency spectrum is optimized by the processor based on the priority classes of the user terminals and the future geo-located contextual network needs of the user terminals in the defined area.

First claim

The invention claimed is:

1. A method for optimizing network spectrum utilization for a wireless communications network utilizing radiofrequency spectrum resources, at least two different classes of access priorities for the radiofrequency spectrum resources, and at least two different priority classes of user terminals, wherein the wireless communication network includes multiple communication nodes, including base stations and user terminals, the method comprising:
determining, by a processor, available radiofrequency spectrum resources at a specific user terminal location by determining the properties of the communication nodes and the utilization of the radiofrequency spectrum resources by all priority classes of user terminals in a defined area proximate to the user terminal location or a projected route of the user terminal;
predicting, by the processor, future geo-located contextual network needs for user terminals of all priority classes in the defined area, based on historical profiles, wherein the future geo-located contextual network needs are contextual application needs; and
optimizing, by the processor, the use of the radiofrequency spectrum resources based on the priority classes of the user terminals and the future geo-located contextual network needs of the user terminals in the defined area;
wherein the determined available frequency spectrum resources at each user terminal location of any priority class is continuously updated and stored in a network database together with associated user terminal geo-located contextual network needs;
wherein the optimizing includes prioritizing geo-located contextual network needs of higher priority user terminals over geo-located contextual network needs of lower priority user terminals; and
wherein the method further comprises:
determining an estimated Quality of Experience corresponding to the user terminal's future location, and in response to determining that the estimated Quality of Experience falls below a threshold, increasing a data transfer rate for the user terminal.

2. The method according to claim 1 , wherein the priority of a user terminal is based on a Subscriber Identity Module (SIM) of the user terminal, an application running on the user terminal, and/or network services used by the user terminal.

3. The method according to claim 1 , wherein the priority of a user terminal is based on network utilization, latency, and/or maximum radiofrequency spectrum resources of the user terminal.

4. The method according to claim 1 , further comprising:
determining specific user terminal location and properties of communication nodes of the wireless communications network in proximity to a new user terminal of a known priority class, current user terminal location and predicted future path;
determining current spectrum needs and predicting future spectrum needs of all other classes of user terminals in the current user terminal location of the new user terminal and/or which lie along the predicted future path of the new user terminal;
computing user terminal location-specific properties of spectrum resources at the current user terminal location and along the predicted future path of the new user terminal; and
ranking, arbitrating and/or prioritizing the needs of the new user terminal and different classes of user terminals based on available network radiofrequency spectrum resources and/or user terminal application context.

5. The method according to claim 1 , further comprising:
determining radiofrequency spectrum resources at a specific user terminal location by determining the properties of communication nodes of the wireless communication network and utilization of radiofrequency spectrum resourcesbandwidth by all priority classes of user terminals and iterating over multiple user terminals across a wide area such that a database indicating temporal radiofrequency spectrum resources (SR) is established;
predicting future geo-located contextual network needs for users terminals of all priority classes in the defined area, by using location aware nodes/user terminals, which are likely to travel along historically, mapped or peer-defined routes;
collecting and storing contextual application need information at a Geo-Located Contextual Use (GLCU) database;
accessing the GLCU database and computing a predicted set of application data needs for each user terminal along a predicted route, and storing the predicted set of application data needs in a Predicted Geo-Located Contextual Use (PGLCU) database;
calculating a dynamic mapping between records of the PGLCU and SR databases according to ranked priority classes of users represented in the PGLCU database, wherein users having the highest priority class are ranked most highly and allocated radiofrequency spectrum resources suited to their geo-located contextual network needs, and wherein users of a lower priority class are ranked less highly and allocated remaining radiofrequency spectrum resources.

6. The method according to claim 5 , wherein the mapping between the PGLCU and SR databases is dynamic and the rankings of users are updated when a new user enters the Defined Area.

7. The method according to claim 1 , wherein the optimizing takes into account use of white space resources.

8. The method according to claim 1 , wherein to maximize the Quality of Experience, application needs are matched to available network radiofrequency spectrum resources, and future needs are anticipated by predicting future application needs and location-based routes for user terminals based on profiling user applications.

9. A wireless communications network utilizing a radiofrequency spectrum and configured to optimize network spectrum utilization, the wireless communication network comprising:
multiple communication nodes, including base stations and user terminals, utilizing the radiofrequency spectrum, wherein the radiofrequency spectrum has at least two different classes of access priorities for radiofrequency spectrum resources, and wherein the user terminals comprise user terminals of at least two different priority classes corresponding to the access priorities; and
a computer system configured to:
determine available radiofrequency spectrum resources at a specific user terminal location by determining the properties of the nodes and the utilization of the radiofrequency spectrum resources by all priority classes of user terminals in a defined area proximate to the user terminal location or a projected route of the user terminal;
predict future geo-located contextual network needs for the user terminals of all priority classes in the defined area, based on historical profiles, wherein the future geo-located contextual network needs are contextual application needs;
optimize use of the radiofrequency spectrum resources based on the priority classes and the future geo-located contextual network needs of the user terminals in the defined area;

wherein the determined available frequency spectrum resources at each user terminal location of any priority class is continuously updated and stored in a network database together with associated user terminal geo-located contextual network needs;
wherein the optimizing includes prioritizing geo-located contextual network needs of higher priority user terminals over geo-located contextual network needs of lower priority user terminals; and
wherein the computer system is further configured to:
determine an estimated Quality of Experience corresponding to the user terminal's future location, and in response to determining that the estimated Quality of Experience falls below a threshold, increase a data transfer rate for the user terminal.

10. The wireless communicati

Assignees

• Deutsche Telekom Ag
• Deustsche Telekom Ag

Inventors

• Kadel Gerhard
• Nolan Julian Charles

Classifications

• H04W72/56

  based on priority criteria · CPC title

• H04W16/14 Primary

  Spectrum sharing arrangements {between different networks} · CPC title

• H04W4/028

  Electricity · mapped topic

• H04W28/26

  Resource reservation · CPC title

• H04W72/10

  Electricity · mapped topic