Handover control system and handover control method for femtocells

摘要

A handover control method includes the follow steps. First, determining a geographical location of each femtocell and determining a maximum bandwidth provided by each femtocell, and determining which femtocells are in a same region according to the geographical information of each femtocell. Secondly, selecting one or more femtocells from one region as server femtocells of the region by comparing the maximum bandwidth of the femtocells in the same region, and transmitting identification information of each server femtocell to non-server femtocells near the server femtocell. Thirdly. transmitting registration information of all other femtocells of all regions to each server femtocell. Fourthly, when receiving a handover report from user equipment to switch from an original femtocell to a target femtocell, obtaining the registration information of the target femtocell from one server femtocell. Finally, transmitting a control signal including the obtained registration information to the user equipment.

主权项

1. A handover control system for processing handover among femtocells connected to a core network, the handover control system comprising:
a plurality of first processors each comprised in a femtocell; a second processor comprised in the core network; and a plurality of modules executed by the first processors and the second processor to perform operations of processing handover among the femtocells, the operations comprising:
determining by each of the first processors a geographical location of each femtocell and a maximum bandwidth provided by each femtocell;determining by the second processor which femtocells are in a same region according to the geographical information of each femtocell;selecting by the second processor one or more femtocells from one region as server femtocells of the region by comparing the maximum bandwidth of the femtocells in the same region;transmitting by the second processor identification information of each server femtocell to non-server femtocells near the server femtocell, transmitting by the second processor registration information of all other femtocells of all regions to each server femtocell, wherein the registration information of one femtocell is the connection information of the femtocell;when receiving a handover report from user equipment to switch from an original femtocell to a target femtocell, obtaining by the first processor of the original femtocell the registration information of the target femtocell from the original femtocell if the original femtocell is a server femtocell, and obtaining by the first processor of the original femtocell the registration information of the target femtocell from the server femtocell near the original femtocell if the original femtocell is a non-server femtocell; andtransmitting by the first processor of the original femtocell a control signal comprising the obtained registration information to the user equipment, thereby allowing the user equipment to switch from the original femtocell to the target femtocell according to the registration information of the target femtocell.