Abstract: A method and system for detecting a roaming location of a mobile network is provided to detect the roaming location in a systematic and efficient way. The method first collects roaming call detail records (CDRs) of a subscriber of the mobile network which are generated when the subscriber roams to a roaming network and makes or receives corresponding roaming calls, and then finds at least one roaming CDR whose corresponding roaming call is occurred in a cell of the roaming network covering a registered address of the subscriber. Last, the method determines whether the registered address is the roaming location according to the found roaming CDR(s).

Abstract: A management system and method for a wireless communication network and an associated interface is provided. The management system provides a structure of data layers and a visualization design to upgrade the efficiency of network management. The management system includes a data generation module and a display module. The data module generates a plurality of data layers, which comprise at least a map layer, a network configuration layer, and an operation index layer. The network configuration layer comprises a configuration of the wireless communication network on the map layer. The operation index layer includes statistic values of an operation index of the wireless communication network under the configuration. The display module performs an overlap display of a plurality of selected layers from the data layers to show operation status of the wireless communication network.

Abstract: A system and method for identifying a mobile user cluster by call detail records (CDRs) is provided. The system and method identifies at least one mobile user cluster according to a plurality of CDRs generated by a plurality of mobile users during a first period and a second period of time. Each mobile user of the identified cluster generates at least one CDR at a same geographical location during the first period of time, and a mobile user sequence is formed between any two mobile users of the identified cluster. At least one CDR is generated between any two neighboring mobile users of the mobile user sequence during the second period of time. Examples for the mobile user cluster include cohabiting family members, familiar neighborhood, colleagues, schoolmates, etc.

Abstract: A method for constructing a mobility model for use in optimizing mobility management in a wireless communication system is disclosed, which comprises steps of collecting a plurality of network traffic statistic data of a plurality of desired items, wherein the desired items are related to the behavior of a plurality of subscribers of the wireless communication system; constructing the mobility model according to the network traffic statistic data, wherein the mobility model is for modeling the mobility behavior of the subscribers; and optimizing mobility management according to the mobility model.

Abstract: A management system and method for a wireless communication network and an associated interface is provided. The management system provides a structure of data layers and a visualization design to upgrade the efficiency of network management. The management system includes a data generation module and a display module. The data module generates a plurality of data layers, which comprise at least a map layer, a network configuration layer, and an operation index layer. The network configuration layer comprises a configuration of the wireless communication network on the map layer. The operation index layer includes statistic values of an operation index of the wireless communication network under the configuration. The display module performs an overlap display of a plurality of selected layers from the data layers to show operation status of the wireless communication network.

Abstract: A system and method for performing a network planning and mobility management optimization is provided, and it includes a graphical user interface (GUI) front-end for allowing users to operate required procedures for network planning and mobility management optimization. According to this invention, the network plan takes a network topology (NT) and its associated network statistic data as input. Accordingly, a network plan can represent an arrangement of network elements which display a superior-subordinate relationship between network elements in the mobile communication network. Moreover, the network plan comprises a plurality of statistic data reflecting a plurality of user mobility behaviors and a plurality of traffic behaviors of network elements in the mobile communication network.

Abstract: A method for deployment scheduling for a mobile communication network is disclosed. The mobile network is to be changed from a first network plan to a second network plan, and both the first and second network plans include a plurality of BSC (base station controller) areas and location areas.

Abstract: A method for determining a plurality of location areas in a wireless communication system is disclosed.

Abstract: A method for detecting and reducing ping-pong handover effect of a cellular network is disclosed. The method provides a systematic way to determine which cell pairs of the network have high probability of suffering from the ping-pong handover effect. The method comprises collecting network traffic statistic data of multiple items, wherein each of the items corresponds to a state change of multiple mobile units within cells of the network; determining whether a plurality of criteria are met according to the network traffic statistic data; and detecting the ping-pong effect between the cells according to the result of the determining step. The method also comprises changing a handover parameter for the cells with the ping-pong handover effect.

Abstract: A method for deployment scheduling for a mobile communication network is disclosed. The mobile network is to be changed from a first network plan to a second network plan, and both the first and second network plans include a plurality of BSC (base station controller) areas and location areas.

Abstract: A system and method for identifying a mobile user cluster by call detail records (CDRs) is provided. The system and method identifies at least one mobile user cluster according to a plurality of CDRs generated by a plurality of mobile users during a first period and a second period of time. Each mobile user of the identified cluster generates at least one CDR at a same geographical location during the first period of time, and a mobile user sequence is formed between any two mobile users of the identified cluster. At least one CDR is generated between any two neighboring mobile users of the mobile user sequence during the second period of time. Examples for the mobile user cluster include cohabiting family members, familiar neighborhood, colleagues, schoolmates, etc.

Abstract: A partitioning method for a mobile communication network with overlapping location areas is disclosed. The method comprises: finding at least a potential LAC labeling operation for each cell within the network; determining a respective gain for each potential LAC labeling operation; selecting one potential LAC labeling operations according to the respective gains; and adjusting the LAC list of the cell according to the selected operation. The method can provide an optimal partitioning to upgrade the network performance.

Abstract: A partitioning method for a mobile communication network with an initial partition plan is disclosed. The partitioning method comprises: performing at least one of a plurality of network partitioning algorithms to generate a following partition plan; generating a corresponding function value for each of the initial and following partition plans according to an objective function; and selecting a better one of the initial and following partition plans according to the corresponding function values. The partitioning method can generate a refined or optimized partition plan in a systematic way to reduce the network load.

Abstract: A method for detecting and reducing ping-pong handover effect of a cellular network is disclosed. The method provides a systematic way to determine which cell pairs of the network have high probability of suffering from the ping-pong handover effect. The method comprises collecting network traffic statistic data of multiple items, wherein each of the items corresponds to a state change of multiple mobile units within cells of the network; determining whether a plurality of criteria are met according to the network traffic statistic data; and detecting the ping-pong effect between the cells according to the result of the determining step. The method also comprises changing a handover parameter for the cells with the ping-pong handover effect.