33results about How to "Improve handover success rate" patented technology

Provided is a handover control device and method of a multi-mode mobile communication terminal. The device includes a first processing module; a second processing module connected in its inter-chip path with the first processing module; and an application processor for controlling the first processing module to transmit an IMSI (international mobile subscriber identity) to the second processing module when a traffic handover event from a first mode to a second mode occurs.

Disclosed herein is a handover method and apparatus for providing mobile Internet Protocol Television (IPTV) service over wireless communication networks. The handover method includes checking whether the strength of a signal received from a first base station of a serving first wireless network falls within a predetermined first threshold range; if the strength of the signal falls within the range, checking whether the strength of a signal received from at least one base station of a second wireless network is higher than a second threshold value required for handover; estimating the velocity and direction of a Mobile Node (MN) using location information received from a satellite; predicting a handover target base station using the estimated velocity and estimated location information; and, if the predicted target base station is one of base stations having the second threshold value, performing handover to the target base station.

A method and device for an inter-RAT handover for a PS service in a dual-mode RNC are disclosed in the present invention, which are used to support an inter-RAT handover optimization flow of the PS service in the dual-mode RNC, thereby solving the problem that the current inter-RAT handover optimization flow does not support the PS handover. With the present invention, in the inter-RAT handover optimization flow, an inter-RAT relocation flow and a radio resource allocation flow of a destination system are executed in parallel, and an encryption indication is sent to a central network through inter-RAT relocation required message; a BSC forwards user data to the central network according to the encryption indication.

A method for transmitting Coordinated Multipoint transmission / reception (CoMP) coordinated group information and an Evolved NodeB (eNB) thereof are provided in the present invention. The method includes: the eNB sends the CoMP coordinated group information of the CoMP coordinated group to which the local service cell belongs, and / or the CoMP coordinated group information of the CoMP coordinated group to which the neighboring cell of the local service cell belongs to other eNBs via the X2 interface message. The eNB is configured with an X2 interface unit and a storage unit. The present invention can improve the CoMP transmission handover success rate of the network and improve the network performance.

The invention discloses a method for cell switchover suitable for a TD-LTE public network trunking system. The method for cell switchover suitable for the TD-LTE public network trunking system comprises the steps that when a group composed of a plurality of mobile radio stations conducts cross-cell switchover, a temporary small network is constituted by the mobile radio stations needing switchover according to a preset threshold; a bridge group user is selected from the small network, wherein two sets of transceivers are assembled to the bridge group user so that communication can be conducted on networks at two different frequencies at the same time; information sent by a source base station is transmitted to other group users in the temporary small network by the bridge group user. Switchover from the source access station to a target access station is achieved through the bridge group user and after the bridge group user enters a target network, the other group users sequentially enter the target access station through negotiation between the bridge group user and the target access station. According to the scheme, collision in the process of switchover of the group is remarkably reduced, so that time of interruption of services of the mobile radio stations is reduced, and the mobile radio stations are compatible with an existing wireless network.