Self-optimizing communication network with criteria class-based functions
View Patent ↗The present disclosure is directed to a self-optimizing network (SON) and ways of designing and operating the SON to achieve maximum efficiency and best subscriber experience metrics. Aspects of the invention use criteria classes and class-based self-optimizing network functions in a SON of a wireless communication architecture, apply filtering criteria to said criteria classes and determine worst-performing network objects or relations by coordination of multiple SON functions and function rules.
1. A method for optimizing the performance of a configurable mobile communication system (MCS) in a multi-cell network, comprising:
defining and encoding into a server that controls the performance of said MCS a plurality of self-optimizing network (SON) optimization functions for optimizing respective performance indicators of said MCS, wherein said SON optimization functions include at least a mobility robustness optimization (MRO) function, a mobility load balancing (MLB) function, and a coverage and capacity optimization (CCO) function;
defining and encoding into said server a plurality of criteria classes in the form of an electronic criteria classes library that can be accessed by said plurality of SON optimization functions in said server, said criteria classes comprising data and instructions for identifying a set of candidate cells of said multi-cell network on which to carry out said SON optimization functions so as to improve the performance of said MCS; and
defining and encoding into said server a rules-based function selector that selects a best subset of said SON optimization functions to be carried out in said candidate cells of said multi-cell network.
2. The method of claim 1 , further comprising automatic optimization of the performance of said MCS by said server without human intervention to simultaneously optimize a common parameter used in more than one of said subset of SON optimization functions so that the simultaneous optimization would render an improved performance of said MCS even though separately optimizing one such SON optimization function on its own would conflict with a best setting of another such SON optimization function.
3. The method of claim 2 , said automatic optimization comprising determining an optimum value of the common parameter and further comprises preventing said common parameter from oscillating or hunting due to said conflict among the subset of SON functions.
4. The method of claim 2 , said multi-cell network comprising a plurality of mobile communication cells in a given geographic area, said step of automatic optimization comprising determining an optimum value of said common parameter over an entirety of said geographic area.
5. The method of claim 1 , further comprising determining a priority-based policy by said rules-based function selector so as to select said best subset of SON optimization functions.
6. The method of claim 1 , further comprising determining a weight-cost based policy by said rules-based function selector so as to select said best subset of SON optimization functions.
7. A system for automatically optimizing the performance of a mobile communication system (MCS) in a multi-cell network, comprising:
a server including a processor coupled to a memory storage unit and a data interface unit, the memory storage unit storing data and instructions for operating the computer and the data interface unit for exchanging data and instructions between said server and other computers coupled thereto over a data communication network;
a plurality of instructions encoded into said memory storage unit including instructions representing self-optimizing network (SON) optimization functions and instructions representing an electronic criteria classes library; and
a rules-based function selector including instructions encoded into said memory storage unit and including instructions configured to cause said server to automatically select a best subset of said SON optimization functions for operation on candidate cells of said multi-cell network.