42 results about "Network packet" patented technology

The invention discloses a vehicle-mounted terminal awakening system, an awakening method, a vehicle-mounted terminal, a vehicle and a server. The awakening system comprises a control terminal, a server and a vehicle-mounted terminal, wherein wireless communication is carried out between the control terminal and the server; wireless communication is carried out between the server and the vehicle-mounted terminal; the control terminal is used for receiving a control instruction of a user and sending the control instruction to the server; when the server judges to be in a connection state with the vehicle-mounted terminal, the control instruction is sent to the vehicle-mounted terminal to awaken the vehicle-mounted terminal; the vehicle-mounted terminal is used for regularly transmitting a first network data packet to the server in a dormancy state to keep communication connection with the server and is also used for controlling the vehicle according to the control instruction after being awakened. According to the awakening system of the embodiment of the invention, the waiting time for enabling the user to remotely control the vehicle is effectively reduced, the service fee of the vehicle-mounted terminal is reduced, and the user experience is enhanced.

The invention relates to a method, which comprising initiating the establishment of a security association between a client node and a gateway node. User data is obtained from an authentication server and the user is au-thenticated. Authorization is obtained for the user for certain network services from a separate authorization node. An authorized address is provided to the client node. The authorization is checked by the gateway node for the allowing outbound packets to specific destinations.

Provided a method and device for efficiently retransmitting packets of which transmissions failed in wired/wireless network including detecting continuity by detecting whether or not a sequence ID of a received packet is continuous with a start sequence ID or an end sequence ID of packets included in reception blocks which are generated in advance of the received packet; depending on the result of the detection, manipulating reception blocks to renew or delete the reception blocks or generate a new reception block by using the sequence ID of the received packet; and transmitting an EBN (Explicit Block NACK) for requesting retransmission of lost packets in units of a block when discontinuity is detected.

The invention discloses a reorganization method of media data and a group packaging server, the group packaging server comprised a data buffer unit and a data packaging unit is used to recombine the data packages. The data buffer unit is used to queue the received data packages and then send the queued data packages group to the data packaging unit, the data packaging unit is used to recombine the queued data packages group. The reorganization method of media data includes the following steps: Step A, queuing the received data packages; Step B, recombining the data packages that will be sent the same access point. The invention can effectively improve the utilization of bandwidth and downlink efficiency of media data.

The invention discloses a network communication encrypting method and a system. The network communication encrypting method includes that a first communication party sends an encryption negotiation request to a second communication party to start encryption negotiation; the first communication party and the second communication party generate initial symmetrical secret keys respectively by means of a dissymmetrical encryption interactive mode to achieve encryption negotiation; the first communication party encrypts a data packet by using the initial symmetrical secret keys to obtain an encrypted data packet and updates the initial symmetrical secret keys by using a predetermined algorithm, and the updated initial symmetrical secret keys are used as symmetrical secret keys for next encryption; and the second communication party decrypts the encrypted data packet by using the initial symmetrical secret keys and updates the initial symmetrical secret keys by using the same predetermined algorithm, and the updated initial symmetrical secret keys are used as symmetrical secret keys for next decryption. According to the network communication encrypting method and the system, safety of information is guaranteed, simultaneously, the work amount of encryption and decryption of communication parties is reduced, and efficiencies of encryption and decryption and communication performances are improved.

The invention discloses a UART (universal asynchronous receiver/transmitter) serial port communication method based on GPIO (general purpose input/output) handshake and EDMA (enhanced direct memory access). According to the method, data migration from transmitting and receiving FIFO of UART to an external data buffer is completed automatically on the basis of an EDMA function, and frequent intervention of CPU (central processing unit) is not needed; a receiving terminal is informed through GPIO handshake signals to receive data packets, and the boundaries of the received data packets can be rapidly distinguished and an address of a next to-be-received data packet can be automatically updated; therefore, the efficiency of communication adopting UART serial ports is greatly improved, frequent interruption to CPU processing is reduced when the UART transmits and receives the data pockets, and the utilization rate of CPU resources can be increased. Meanwhile, according to the scheme, the GPIO signals are utilized to have an appointment with opposite terminal equipment, and convenience produced when the opposite terminal equipment uses the UART for receiving is improved to a certain degree, so that the work efficiency of communication adopting the UART serial ports is improved at the level of the overall system.

The invention discloses a method for sharing bandwidth among wireless devices and the wireless devices, relates to the fields of communication technique and communication, and aims to solve the problems of low internetworking flexibility, low usability and low network utilization ratio in the prior art. The method comprises the following steps that: a wireless device A issues a connection request to a wireless device B, and consults with the wireless device B to share bandwidth information and establish connection; the wireless device A judges whether local data needs to be forwarded or not; and when the local data needs to be forwarded, the wireless device A transmits a data packet to a network through the wireless device B. Each wireless device comprises a link control module, a load balancing module and a data forwarding module, wherein the link control module is used for initiating the connection request to other wireless devices and consulting with other wireless devices to share the bandwidth information and establish connection; the load balancing module is used for transmitting a forwarding signal when the wireless device judges that the local data needs to be forwarded; and the data forwarding module is used for receiving the forwarding signal and transmitting the data packet to the network through other wireless devices which are connected with the wireless device.

The present invention discloses a method and a device for transmitting data. According to the technical solution provided by the present invention, no actual end-to-end multi-bearer connection is established between a terminal and a network side, but the terminal, when locally transmitting a data packet, simulates a multi-bearer mechanism to establish multiple virtual service channels on a bearer and performs priority-based scheduling between the service channels. Through virtual multi-bearer, the present invention can balance service QoS with resource utilization under the condition that the network or the terminal does not support the multi-bearer capability or the multi-bearer capability is restricted.

The invention provides an object-oriented based automatic testing method. The object-oriented based automatic testing method includes creating a testing script for testing network protocol installed in devices to be tested, and introducing the testing script into a data packet used for providing a testing script interface; selecting one device to be tested so as to select the network protocol configured in this device to be tested as a test object, wherein the network protocol comprises a plurality of configuration attribute parameters; setting by means of prestored attribute parameters and acquiring the network protocol having had the attribute parameters as the testing object; calling a plurality of functional testing points of the network protocol using the preset testing way as the testing object; appointing default command line configuration file route for the network protocol as the testing object. The object-oriented based automatic testing method is applicable to different devices and good in expandability, and work of automatic testing of developers is simplified.

The invention relates to a method and system used for Flash balance storage. The method includes the following steps that first, whether an erase flag exists or not in a current sector in which writing will be performed is checked, and if not, the current sector is formatted, and a flag is set; second, whether data are written in the current sector for the first time or not is checked, if yes, a next sector of the current sector is formatted firstly, the ERASE_FLAG is set, and then a USED_FLAG is written into the sector; third, whether the remaining space of the current sector is enough for writing a current data package or not is judged, and if the space is enough, the data are written into the current position, and the current operating address g_SectorInfo.cur_addr is updated; if the space is not enough, the operation skips into the next sector; fourth, whether the written-in data can pass verification or not is checked, and if not, the operation skips into the next sector, and the first step is executed.

The application provides an audio and video synchronization method applied to a first terminal. The first terminal can receive an audio data packet ad a video data packet that are sent by a second terminal; and the audio data packet includes an audio time stamp and the video data packet includes a video time stamp. Because the audio time stamp and the video time stamp are generated by the second terminal based on same system time, the audio time stamp and the video time stamp have an association relation. When video data are played, the time corresponding to the video time stamp is compared with time corresponding to the audio time stamp; if the time corresponding to the video time stamp is earlier than the time corresponding to the audio time stamp, the video data packet is abandoned; and if the time corresponding to the video time stamp is later than the time corresponding to the audio time stamp, the video data are played in a delayed mode, thereby realizing audio and video synchronization. Besides, the time stamps are field data in data packets. According to the provided synchronization method, no extra bandwidth occupation is added, so that the bandwidth resources are saved.

A data transmission method is disclosed in the present invention, which includes: switching from a Device to Device (D2D) communication mode to a cell communication mode; packaging a data package failed to be transmitted in the D2D communication to a cell communication package; the packaged data packet includes indication information; said indication information is used to indicate that said packaged data packet is the one failed to be transmitted in the D2D communication, and is the divided data packet of an origin D2D communication data packet, and the sequence of the divided data packet in the origin D2D communication data packet; sending the packaged data packet to a data receiving device, wherein, said indication information is used by said data receiving device to perform identification process for the data packet. A data sending device, a data receiving device and a data transmission system are also disclosed in the present invention. By applying the embodiments of the present invention, the lossless switching from the D2D communication mode to the cell communication mode is enabled, and the correct receiving of data is implemented.

A network communication device including port control circuitry for controlling packet flow between the ports of the device, where the port control circuitry includes a port manager that directs packets between the ports and port bonding circuitry that bonds two or more of the ports into a bonded port set. For each packet to be sent via the bonded port set, the port bonding circuitry selects one of the bonded ports for transmitting the packet. More than one bonded port set may be defined in a given communication device, and each bonded port set may include from two ports up to all the ports of the device, as long as each port is included in only one bonded port set. One or more port bonding registers are provided to identify which of the plurality of ports are bonded in each bonded port set. In one embodiment, the bonded ports are selected on a packet by packet basis so as to achieve a relatively even distribution of packets sent by each bonded port. In an alternative embodiment bonded ports are assigned to packet source identifiers so as to achieve a relatively even distribution of source identifiers among the bonded ports. If bonded ports are assigned to particular source identifiers, then the traffic is preferably monitored and the assignments are periodically adjusted to achieve even distribution of packet flow on the bonded link. The bonded ports may have different bandwidths, in which case traffic is distributed on a proportionate basis.

The invention discloses a method for controlling interchanger MAC address table dual-ageing time. The method comprises the following steps: an MAC address storage module expands a zone bit in each MAC address table; a control module controls a searching module to obtain the MAC address of an external data package, searches for and judges whether the MAC address of the external data package exists in the MAC address tables according to the MAC address arranged in the MAC address storage module, and simultaneously starts and controls a short ageing timer and a long ageing timer to operate the MAC address of the external data package. The ageing state of each MAC address table is judged by searching for and calculating the zone bit of each MAC address table at regular time, so that useless and obsolete MAC addresses occupying the space of the MAC address stable for a long time can be cancelled at regular time. According to the scheme, time consumed for searching for the MAC address tables can be reduced, resource occupation is reduced, and the working efficiency of interchangers is improved.

The invention relates to a transmission method and a transmission system and a transmission device of a multicast/broadcast business MBMS. A high speed sharing data sending entity is arranged in a wireless accession network side and a high speed sharing data receiving entity is arranged in an equipment side of user. The invention is characterized in that the method comprises: the high speed sharing data sending entity of the wireless accession network sends a MBMS data packet to the equipment side of the user in a high speed downstream grouping accession transmission way; the high speed sharing data receiving entity in the equipment side of the user receives the MBMS data packet. The invention embodiment realizes providing transmission of the MBMS data packet in downstream sharing channel in the high speed downstream grouping accession transmission way via arranging the high speed sharing data sending entity in the wireless accession network side and arranging the high speed sharing data receiving entity in the equipment side of the user, so as to improve transmission speed of the MBMS.

The embodiment of the invention provides a transmission method of media data, a network-side apparatus and a communication system, wherein the transmission method of the media data comprises the steps of: determining a predicted time length required for completing the channel switching by a terminal when receiving a channel switching request sent by the terminal; determining a starting internal coding frame according to the predicted time length, wherein the starting internal coding frame is a starting frame corresponding to unicast media data to be sent to the terminal; and sending the unicast media data cached after the starting internal coding frame is determined to the terminal, and stopping sending the unicast media data to the terminal when a unicast media data packet currently sent to the terminal is same as a first multicast media data packet received by the terminal from a multicast source. The embodiment of the invention is beneficial for improving the sending efficiency of the unicast media data in the fast channel switching process.

The invention discloses a data processing method and device, a storage medium and a processor. The method comprises the following steps of combining the storage information and the authorization information of a target file, and encrypting the combined information by adopting a first public key of an authorized object to obtain a target data packet; and under the condition that the authorized object requests to access the target file, decrypting the target data packet by adopting a private key corresponding to the first public key of the authorized object, and obtaining the target file from the block chain system based on the decrypted data. Through the application, the problem that the central server is easily attacked when the file is stored on the central server and the access to the file is authorized in the related technology, so that the file is difficult to safely and accurately access, is solved.

The invention discloses a method and device for importing and exporting contacts and belongs to the communication field. The method comprises receiving user identification and a data packet of users transmitted by a receiving terminal, wherein the data packet comprises configuration files and contact files corresponding to contact groups, the configuration files are used for storing the corresponding relationships between group identification (ID) of the contact groups and file ID of the contact files, and the contact files corresponding to the contact groups are used for storing the contact information of the contacts included in the contact groups; obtaining the group ID of the contact groups and file ID of the contact files corresponding to the contact groups from the data packet; obtaining the contacts and the contact information included by the contacts and obtained from the data packet according to the file ID of the contact files; storing the corresponding relationships of the user identification of the users, the group ID of the contact groups and the contact information of the contacts included by the contact group. By means of the method and device, the group information can be reserved.

The embodiment of the invention provides a data exchange method applied to an articulated naturality web, the articulated naturality web is connected to the Internet through a security gateway, and afirst white list is pre-configured in the security gateway. The method comprises the steps of using the security gateway to receive a plurality of articulated naturality web data packets from the articulated naturality web and a plurality of Internet data packets from the Internet; carrying out white list verification on each Internet data packet and each articulated naturality web data packet, and reserving the data packets which are verified to be qualified; extracting the first articulated naturality web audio and video stream data from the articulated naturality web data packet which is verified to be qualified, and extracting the first articulated naturality web audio and video stream data from the Internet data packet which is verified to be qualified; based on each first articulatednaturality web audio and video stream data and each first Internet audio and video stream data, updating the first white list; and based on an updated second white list, extracting a second articulated naturality web data packet and a second Internet data packet, and converting each second articulated naturality web data packet and each second Internet data packet to the articulated naturality web or the Internet.

The present invention provides a method and a device for transmitting a file by using instant messaging software. The method comprises the following steps: acquiring a file to be transmitted; calculating the size of the file to be transmitted; if judging that the size of the acquired file to be transmitted exceeds a first preset threshold, cutting the file to be transmitted into a plurality of data packets; sending the plurality of data packets by using a plurality of threads, wherein each thread sends one data packet. According to the method and the device for transmitting a file by using instant messaging software provided by the present invention, a large file is cut, and the data packet obtained after cutting is subjected to concurrent transmission through multiple threads, thereby improving the large file transmission efficiency and improving the large file transmission stability.

The invention discloses a Mesh networking management method. The method comprises the following steps of receiving a simple object access protocol SOAP data packet sent by a user terminal; analyzing the SOAP data packet, and according to the message header of the SOAP data packet, determining a target extender; acquiring the message body of the SOAP data packet; according to the target extender, packaging the message body of the SOAP data packet into a hypertext transmission protocol HTTP packet; sending the HTTP packet to the target extender; and receiving the response of the target extenderbased on the received HTTP packet. The invention also discloses management equipment and the extender. By using the Mesh networking management method, the target extender can be determined according to the message header of the SOAP data packet, the HTTP packet including the message body of the SOAP data packet is sent to the target extender, and the response of the target extender based on the received HTTP packet can be received so that the management equipment can conveniently manage the extender.

The invention is applicable to the field of data transmission, and provides a method and a device for acquiring attendance verification data. The method comprises the steps of using a work attendance checking terminal to acquire permission authentication information uploaded by a mobile terminal so as to judge whether the mobile terminal has data upload permission or not; if the result shows that the mobile terminal has the data upload permission, sending a permission pass instruction to the mobile terminal, receiving an attendance verification data packet uploaded by the mobile terminal, and judging whether the attendance verification data packet is intact or not; if the judgment result shows that the attendance verification data packet is not intact, sending an upload failure instruction to the mobile terminal and receiving the attendance verification data packet again; if the judgment result shows that the attendance verification data packet is intact, sending an upload success instruction to the mobile terminal, and extracting attendance verification data in the attendance verification data packet for storing. By directly acquiring the attendance verification data from the mobile terminal, employees do not need to wait in a queue in front of the work attendance checking terminal for entering the attendance verification data, so that the acquisition of the attendance verification data becomes simple, convenient and easy.

The invention discloses a network covert channel construction method based on a Web application directory tree. The method comprises the following steps: creating a network client program and a server program; embedding secret information in an HTTP request of accessing a node in the Web application directory tree, sending an HTTP data packet to the server through the client program, and transmitting the secret information to the server at the same time; and extracting the secret information by the server through the received HTTP data packet. According to the network covert channel construction method disclosed by the invention, the normal HTTP request is simulated by accessing the Web application of the server, thereby having good imperceptibility, a plurality of Web applications are deployed on a plurality of servers, and the client accesses different Web applications, so that the covert channel has a better transmission rate.

The invention relates to a method for carrying out monitoring in packet-oriented telecommunication networks and data networks. The method makes it possible to reduce the processor performance required to carry out legal monitoring of telecommunication subscribers in switching nodes of packet-oriented telecommunication and data networks. To reduce the high number of comparably short data packets which must be respectively compared with the full list of subscriber connections which are to be monitored throughout the network and the computer power resulting therefrom required to carry out the tasks in each network node, the method is based on a reduced individual node list which is automatically generated and maintained and the number of individual verifications is kept to a minimum within a network node.

The invention discloses an information processing method and system, wherein the method comprises that: a DPI device obtains a microblog data packet transmitted in a communication network; the DPI device from the microblog data packet obtains a terminal device identification, a microblog ID and a microblog content; the corresponding relation of the terminal device identifier, microblog ID and microblog content is sent to an analysis unit; the analysis unit based on the collected corresponding relation determines whether the total number of a same terminal device identifier corresponding to different microblog IDs exceeds a preset threshold value, and the different microblog content IDs corresponding to the microblog content are consistent; otherwise, the analysis unit determines the different microblog IDs are water army IDs. The invention by using the method judges a similar content which sends the different microblog IDs is sent by the same terminal device, thereby judging the different microblog IDs are water army IDs, and further can correctly judge a social attention of the microblog content.