42results about How to "Reduce message volume" patented technology

The invention discloses an efficient road traffic anti-collision warning method based on vehicle-to-vehicle communication. According to the method, whether collision warning needs to be carried out is judged according to running state information of a vehicle and an adjacent vehicle, coordinates of a later joint of running routes of the vehicle and the adjacent vehicle are calculated, when the joint is located in front of the vehicle running route, time different of reaching the joint of the two vehicles is calculated, and finally a safety coefficient is set according to the actual road traffic condition and the time difference, namely the emergency situation level of warning is set. The method provides a novel warning mechanism based on the time-domain characteristic of the later joint, achieves dynamic safety warning decision based on partial geographical location information of the vehicle and vehicle running state information, guarantees efficient and reliable safety warning, is low in communication calculation cost, reduces vehicle power consumption, can improve vehicle traffic capacity on a road, and is an available and simple method for an application for assisting vehicle running safety in a car networking mode.

The method includes following steps: (1) borderline net elements in optical network route domain generate current network topology of this route; (2) calculating available information of wavelengths between borderline net elements; (3) constructing a new star type topology of current route; (4) optimizing the said star type topology, and generating final conglomerated topology of current route domain. Advantages are: building up needed message of exchanging routes between different route domain; protecting information inside route domain, enhancing safety of network, reducing size of message inside network, moderating bandwidth of signaling network, and suitable to requirement of dynamic characteristics of optical network in large scale.

The invention provides a cloud computing service realization method and a system thereof and relates to the cloud computing field. By using the method and the system of the invention, a problem of wasting a data transmission resource is solved. The method comprises the following steps that a computational node initiates a request of acquiring information to a mirror image node after receiving a request of creating a virtual machine of a user; the computational node creates a virtual machine instance according to mirror image information on a storage node through an interface which is between the computational node and the storage node after acquiring the mirror image information. A technical scheme provided in the invention is suitable for network resource management and a common storage device which is in a storage node mode is realized.

The invention discloses a message pushing method, device and system and belongs to the technical field of communication. The method comprises: receiving a release request sent by a client of a releaser account, wherein the release request is used for releasing the dynamic message of a user; inquiring active accounts in a friend list of the releaser account; obtaining a message ID of the dynamic message; and pushing the message ID to the message boxes of the active accounts, wherein the active accounts refer to accounts that have released and/or browsed the dynamic message within predetermined time and are used for reading the dynamic message according to the message ID. The problem of a serious delay in the release of the dynamic messages due to a fact that a great amount of pushed messages produce heavy pressure on a pushing server when a plurality of users need to release the dynamic messages is solved, and the effects of reducing the amount of pushed messages and the pressure of the pushing server by only pushing the dynamic messages to the message boxes of the active accounts, and thus rapidly delivering the dynamic messages are achieved.

The present invention discloses a synchronizing or desynchronizing state reporting method for downlinks of physical layers, which includes steps below: In an initial synchronizing phase, a physical layer judges whether initial synchronizing conditions are met and then reports synchronizing state information of downlinks to a senior layer of protocol to enter into a synchronizing state. The protocol approves downlinks to create initial synchronization according to state information reported by the physical layer. In synchronizing state, the physical layer verifies whether desynchronizing conditions are met, the physical layer reports desynchronizing state information of downlinks to the senior layer of protocol. In desynchronizing state, the physical layer verifies the synchronizing condition is satisfied and reports synchronizing state information of downlinks to the senior layer of protocol to enter into the synchronizing state. The present invention can reduce remarkably synchronizing and desynchronizing message volume reported by the physical layer, save system signaling consumption and improve system efficiency.

The invention relates to an OCS (Online Charging System), a PCEF (Policy and Charging Enforcement Function), a PCRF (Policy and Charging Rules Function) and a terminal bandwidth control method. The OCS comprises a first receiving module, and a building module. The first receiving module is used for receiving a session identifier with an Sy session sent by the PCEF via a Gy session and a first credit control request message of a session identifier of the Gy session, and the first credit control request message is used for requesting to carry out authentication reservation on the concerned terminal. The building module is connected with the first receiving module for building and storing correlation between the Sy session and the Gy session according to the first credit control request message. According to the OCS, the PCEF, the PCRF and the terminal bandwidth control method, accurate bandwidth control can be provided for different terminals using the same account, the message amount between the OCS and the PCRF is reduced, and the interactive performance between devices is enhanced.

The invention discloses a method for quickly updating a ranging result of an optical network unit through an optical line terminal. The method comprises the following steps that: the optical line terminal (OLT) transmits the acquired ranging difference to all optical network units (ONU); and the current ONU quickly updates the ranging result thereof according to the acquired ranging difference. The invention also discloses a system for quickly updating the ranging result of the optical network unit through the optical line terminal. In the system, a transmitting unit is used for transmitting the acquired ranging difference to all ONUs through the OLT; and an updating unit is used for quickly updating the ranging result of the current ONU according to the acquired ranging difference through the current ONU. The method and the system save the information quantity, and can realize quick switching in a protected state so as to effectively realize protected reversing.

The invention discloses a real-time data observing method used in a network management system, when starting observation, a network management background builds observation request information to transmit to a network management foreground, where there is a word segment expressing observing period in the observation request information, the foreground collects data at regular time according to the observation period and return the collected data to the background; when ending observation, the background transmits observation end request information to the foreground and the foreground stops collecting data. It takes the measure of the foreground reporting real-time data at regular time, reducing information quantity transmitted between the foreground and background and enhancing reliability and stability of network management system.

An embodiment of the invention provides a hot spare method and system for the TCP (transmission control protocol). The method comprises the following steps: a main board sends an acknowledgement packet to an opposite end connected with the TCP for data read by a TCP application layer protocol process, wherein the opposite end is a common opposite end for nodes where the main board and a spare board are located; when the spare board is switched to the main board, the opposite end retransmits data that are not acknowledged by the acknowledgement packet to the spare board. According to the method, the TCP only acknowledges the data read by the process, only one serial number is needed to spare for the receiving direction, the implementation complexity is reduced, the hot spare message capacity is reduced, and the bandwidth between the main board and the spare board is saved.

The invention relates to the field of communications, the invention relates to a load balancing method and device based on multi-carrier aggregation which can reduce a system load for realizing load balancing based on carrier aggregation under C-RAN. The method comprises the following steps of: in a C-RAN architecture, collecting the equivalent PRB utilization rate of each cell in a system in a signaling layer by taking BBU as a unit; wherein theBBU can use PRB according to the collected equivalent PRB utilization rate; screening out to-be-equalized cells are locally; performing load balancingbetween the to-be-balanced cell and the corresponding target cell with a CA relationship. Thus, the message amount of equivalent PRB utilization rate interaction of the BBU on the service layer according to the CA relationship can be effectively reduced, so that the performance of the network load balancing algorithm is effectively improved. The system load is reduced, the network quality is alsoimproved, and the user experience is effectively improved.

The embodiment of the invention discloses a message processing method, device and system based on Redis, a server and a medium. A specific embodiment of the method comprises the following steps: in response to a received delay message task, determining a delay queue set receiving the delay message task as a target delay queue set, the target delay queue set comprises a delay queue set which is selected from at least two preset delay queue sets and matched with the delay message task; selecting a target process from a process set matched with the target delay queue set; querying a to-be-processed delay message task in the target delay queue through the target process; and sending the delay message task to be processed to a preset message consumption queue. According to the embodiment, the information accumulation in the delay queue set is reduced, the obvious reduction of the message processing efficiency is avoided, and the efficiency and the reliability of the whole system are improved.

An embodiment in the present invention provides a method, a registration server and a terminal of a service release. The method for service releases comprises: a registration server receiving a registration message sent by a session initiation protocol (SIP) terminal, the registration message carrying a support subscription identifier; the registration server sending a registration response message to the SIP terminal according to the registration message; the registration server sending a service release message to the SIP terminal according to the support subscription identifier so as to enable the SIP terminal to use a service corresponding to a service message carried by the service release message. The method is used to solve the problem of excess messages between the SIP terminal and the registration server in the prior art.

The invention discloses a method for detecting malicious nodes of a vehicle-mounted network based on assistance of an unmanned aerial vehicle, and relates to a communication security technology of a vehicle-mounted ad hoc network. A trust model between vehicle nodes is established through direct trust and indirect trust, and then an adaptive threshold detection mechanism between the nodes is added, vehicle-level aggregation and RSU-level aggregation is performed by selecting a corresponding cluster head under the assistance of an unmanned aerial vehicle, and finally a global blacklist (GBL, Gobal black list) is generated, so that the privacy of the vehicle is protected, and malicious nodes are detected. The solution is not to evaluate the trust value of the vehicle in different time periods and then measure the variability of the evaluation, but to evaluate the trust value of the vehicle during the whole experiment, which provides greater flexibility and accuracy compared with the previously existing solution. In addition, the cluster technology based on the unmanned aerial vehicle can reduce the amount of messages exchanged between the vehicles, so that the vehicle communication in the vehicle-mounted network is more efficient.

The invention relates to a network data set search method. At a beginning of any appointed source node in a wireless sensor network, a smaller node set stored with one data set is searched through limited message transmission (searching message is controlled in an as small as possible range near a source node during transmitting in the node). The method is realized in each node in a distributed manner, the searched node set dynamically changes in a searching process so that an accumulative searching mode is realized, and the searched node set is gradually enlarges till that storage positions of all the data in the searched data set are searched.