38results about How to "Reduce call loss rate" patented technology

The invention provides a resource allocation method for multicarrier system, which comprises: network side carries out an admission control judge to users according to the resource condition in cell, and allocates wireless resources according to the reported access capacity for the successive admission user and informs the terminal to carry out chain establishment operation through channel configuration command. The technical scheme in the invention fully considers the compatibility to all types of terminals, solves the problem of the reduction of network access ratio and capacity exists in current technology caused by that user terminal does not support the wireless resource allocation scheme when the network side allocates resources to user terminals. The execution of the invention can reduce lost call rate efficiently, and improves the network quality and the revenue of operators.

The invention provides a frequency spectrum distribution method based on a graph theory in a cognitive radio system. In the method, channel availability and channel connectivity are comprehensively considered when a priority level is calculated and distributed; a parameter of regional call loss rate is introduced at the same time, thereby reducing the call loss rate and enhancing the utilization rate of the frequency spectrum. The method comprises the following steps: firstly, calculating the frequency range degree and the connectivity degree of each node; secondly, calculating the priority level of each node according to the frequency range degree, the channel connectivity and the parameter of the regional call loss rate; selecting the node with the maximum priority level to distribute; selecting the node which has smaller frequency range degree to distribute if the nodes have the same priority level; finding out the frequency range with the minimum interference with neighboring nodethereof in the frequency range list to distribute after the distribution node is determined; after the frequency range is distributed, deleting the frequency range which has the same frequency range in the neighboring node and updating a topological graph; and returning to the first step to re-calculate the priority level until all nodes are matched completely.

The invention relates to a method and system used for telephone traffic distribution by utilizing mobile agents. The method includes steps of judging whether a current call center switch meets telephone traffic overflow condition or not after telephone traffic is received; if the current call center switch meets telephone traffic overflow condition, the telephone traffic is sent to a mobile agent soft switch; acquiring an SIM card telephone number of a mobile terminal; receiving the telephone traffic sent from the call center switch and sending a mobile agent distribution request to a telephone queuing distribution service system; receiving current accessible mobile agent information returned by the telephone queuing distribution service system according to the mobile agent distribution request, wherein the current accessible mobile agent information includes SIM card telephone numbers of mobile terminals that can be distributed; and performing telephone traffic distribution according to the SIM card telephone numbers of the mobile terminals that can be distributed. The method provided by the invention is low in deployment cost, high in expandability, and is capable of relieving call pressure in emergency and reducing call loss rate.

The invention discloses a device, a system and a method for reducing call loss in on-line billing, which belong to the field of communication. The device can be connected and communicated with an on-line billing client and a server respectively, and can comprise an internal communication module connected and communicated with the client to carry out information interaction, a call loss reducing module which receives information sent by the internal communication module, identifies a session message of the information to generate a session identifier and carries out session management, and an external communication module connected and communicated with the call loss reducing module and the server respectively to carry out information interaction. The system and the method can separately manage service logic control and session maintenance by arranging access equipment, and utilizes various mechanisms, such as redundance, dynamic load feedback, resending overtime, abnormal link and notification on busy, to protect service message security to reduce the call loss.

The invention discloses a predictive outbound method. The method comprises the following steps: initializing and acquiring outbound task information; selecting an outbound mode according to the acquired outbound task information, and calculating the number of outbound calls needing to be sent currently according to a predictive outbound algorithm corresponding to the outbound mode, the outbound mode comprises a robot customer service mode and a human-machine cooperation mode; obtaining outbound call number information in the outbound task information, and triggering a corresponding outbound task according to the number of outbound calls needing to be sent currently; and after the outbound task is completed, recording an outbound result, and updating outbound result information in the outbound task information. In addition, the invention also discloses a predictive outbound system. According to the method, outbound processing in a robot customer service mode and a human-machine cooperation mode is met, stable and efficient predictive outbound call can be realized in a human-machine cooperation scene, the average idle duration of a manual customer service is greatly reduced, and the call loss rate is effectively reduced.

The method includes following steps: a) after radio access network (RAN) receives the request for building call connection, decides if the current call is the first call in current trunking group; if yes, then builds the link for current call, and ends the current process; otherwise, goes to step b; b) decides if the trunking group has built link; if yes, the current call message is added into link message, and ends the current process; otherwise, buffers the current call; c) decides if establishment of current link is successful; if yes, the buffered link message is added into the message of link successfully built; if not, then releases the current buffered call.

When all the channels-for-calling become in a state of being used (or when traffic exceeds a specific level) in a base station, the base station stops transmitting a control channel to a mobile station. Thereby, it becomes impossible for the mobile station in a waiting state at the base station to recognize the control channel of the base station. Then, the mobile station performs switching in order to receive a control channel of another base station having a vacant channel-for-calling in the vicinity. Thus, it is possible to reduce a call-loss rate in the whole system and time of call connection from the mobile station.