38results about How to "Reduce message size" patented technology

The present invention concerns a novel form of communication within a cellular wireless communication network. One aspect of the invention concerns a User Equipment for a cellular network, wherein the UE inter alia includes a first interface for UE-to-Basestation communication configured to communicate with a base station of the cellular network and a second interface for UE-to-UE communication configured to communicate with one or more other UEs of a UE-Group to which the UE belongs. According to the invention the UE is configured to receive via its first interface configuration data for configuring its second interface, and to coordinate, via the second interface, a communication within the UE Group.

A method, user terminal and network entity sets up channels in a wireless communications network by receiving a broadcast message including at least one predefined radio configuration at a user terminal. The method also includes receiving a configuration message from a network controller at the user terminal. The configuration message includes an indication to configure the user terminal to adopt the predefined radio configuration for a new transmission channel. The method also includes indicating that the user terminal is configured to transmit data to the network controller according to the predefined radio configuration.

In a tree-structural key distribution system, renewed data of a master key and medium key are sent along with a key renewal block (KRB). KRB is such that each of devices included as leaves of a tree structure has a leaf key and restricted node key. A specific KRB can be generated for a group identified by a specific node and distributed to the group to restrict a device for which the key can be renewed. Any device not belonging to the group cannot decrypt the key, whereby the security of key distribution can be assured. Especially in a system using a generation-managed master key, a master key renewed with KRB can be distributed.

The invention relates to a method for reducing the header size of data packets by removing inner headers from the data packets, wherein at least an outer header remains for routing purposes. When removing the inner headers from a data packet, a newly configured address of the receiving and/or the transmitting entity is inserted in the remaining outer header of the data packet. Context information is provided in the receiving entities for reconstructing the removed inner headers, wherein the context information is referred to by the newly configured address that is in the source and/or destination address of the outer header. The reduced data packet is transmitted with only one header, thereby significantly reducing the size of each data packet. The original packet is completely reconstructed at the receiving entity thereby allowing to proceed with the usual processing of each data packet.

Provided is a radio communication base station device capable of reducing a message size in a call connection. In the device, a report information creation unit (203) creates report information by allocating cell level information as Preconfiguration information managed at a cell level and PLMN level information as Preconfiguration information managed at a PLMN level to different transmission units and the created report information is reported from a report information transmission unit (204) to UE. A Preconfiguration use decision unit (208) judges whether the UE which sets a channel can use Preconfiguration. If yes, a control information creation unit (209) includes the corresponding Index in control information and the control information is transmitted from a control information transmission unit (210) to the UE.

A secure hardware-based module or Security Electronic Control Unit (SECU) for a Controller Area Network (CAN) prevents an attacker from sending malicious messages through the CAN bus to take over control of a vehicle. The SECU shares a unique key and counter with each ECU on the CAN bus. When a legitimate ECU sends a message, it first compresses the message and then generates a MAC of the counter and a secret key. The counter is increased by one for each transmitted message. The ECU then fits the compressed message and the MAC into one CAN frame and sends it onto the CAN bus. The SECU performs the message verification on behalf of the intended receiver(s) of the message. If the verification passes, the receiver(s) simply decompress the message and use it as a normal CAN message. If the verification fails, the SECU will corrupt the CAN frame before it is fully received by the intended receiver(s). The corrupted CAN frame will be ignored by the intended receiver(s) as if it was never received. Therefore, a malicious message generated by an attacker will inflict no damage on the system.

A system and method in which query load balancing process is performed in a cluster of middle-tier computing elements according to the load on at least one, but more preferably a plurality, of the computing elements of the group, this by passing pointers to queries between machines with information or processes pertinent to the query. Optionally the balancing may be carried out in two stages. The first stage performed rapidly, preferably implemented as a hardware device such as a switch for example in which a plurality of queries is distributed to a plurality of computing elements according to at least one descriptor attached to each query or a simple algorithm is used. The second stage preferably performed as above by at least one computing element of the group, but may optionally be performed by a plurality of such elements. Alternatively, the second stage may be performed by a separate computer.

An apparatus and method for reducing responses when executing a session protocol operation is disclosed. In accordance with an embodiment of the disclosure, a mobile device generates a binary encoded message having an indication from which a server can determine a session protocol operation to be performed without communicating all responses for the SIP transaction. The binary encoded message is sent from the mobile device and received by the server. In accordance with an embodiment of the disclosure, the server determines, based on the indication in the binary encoded message, the SIP transaction to be performed without communicating all SIP responses relating to the SIP transaction. The server then attempts the SIP transaction. By reducing the number of SIP responses, communication resources for the mobile device can be conserved. Also battery power for the mobile device can be conserved apparatus and method for reducing responses when executing a session initiation protocol operation

A method and apparatus are provided to facilitate communications with MTC devices. An apparatus may include processing circuitry configured at least to receive a broadcasted triggering message and to determine whether the triggering message identifies a machine-type communication (MTC) gateway or another device within a capillary network supported by the MTC gateway. The processing circuitry may cause at least a portion of the triggering message to be provided to a device within the capillary network in an instance in which the triggering message identifies the device within the capillary network. The processing circuitry may also be configured to determine an action requested by the triggering message in an instance in which the triggering message identifies the MTC gateway.

A wireless communication terminal apparatus, a wireless communication base station apparatus, a wireless communication system and a telephone call connecting method wherein the message size in a telephone call connection can be reduced. A broadcast information producing part (203) assigns cell level information, which is preconfiguration information managed by the cell level, and PLMN level information, which is preconfiguration information managed by the PLMN level, to different transmission units to produce broadcast information, which is then broadcasted from a broadcast information transmitting part (204) to UEs. A preconfiguration usage deciding part (208) determines whether a UE, which sets a channel, can use a preconfiguration. If the UE can use a preconfiguration, a control information producing part (209) causes control information to include the corresponding index, and then the control information is transmitted from a control information transmitting part (210) to the UE.

A method for improving the reliability and performance of Vehicle-to-Vehicle (V2V) networks where digital certificates are necessary for message authentication and some messages may be lost in transmission. The method uses a variable inter-certificate refresh period to optimize communications throughput based on network conditions such as node density and bandwidth saturation. In some network conditions, the inter-certificate refresh period may be increased, such that more certificate digests are sent between full digital certificates, to decrease average message size. In other network conditions, the inter-certificate refresh period may be decreased, to allow for more frequent message authentication by receiving nodes. Empirical data and an adaptive controller are used to select the refresh period which will provide the best performance based on network conditions.

Embodiments of the present invention provide techniques for refreshing a session. A session is refreshed using a refresh message that is enhanced for a refresh. For example, the refresh message does not include an SDP or any other message body. The message includes only a reduced header. This reduces time spent building and parsing the refresh message. Also, less bandwidth is used in sending the refresh messages.

A computer implemented method of reducing a size of a message intercepted on a communication channel of a vehicle, comprising using one or more processors of a vehicular device. The processor(s) is adapted for receiving one or more of a plurality of messages intercepted by one or more devices adapted to monitor messages transmitted via one or more segments of one or more communication channels of a vehicle, applying one or more trained machine learning models to identify one or more of a plurality of data patterns in one or more of the messages, adjusting one or more of the messages by replacing each of the identified data pattern(s) with a respective predefined lossless representation having a reduced size compared to the identified data pattern and transmitting the adjusted message(s) to a remote system via one or more upload communication channels.

A schema for a mark-up language provides a meaningful name and a short name, both of which are valid, for each of a plurality of data fields in messages coded in a mark-up language such as extensible mark-up language (XML). Code conversion of legacy data to use the short names reduces data volume for transmission, storage and processing while allowing the message to be automatically displayed for inspection, diagnostics and data synchronization during a transformation project such as an upgrade of a data processing system for verification of system operation. The ability to display meaningful names only for such purposes allows text editor arrangements to be used for data synchronization while use of short names improves virtually all aspects of system performance.

A method for geolocating a terminal of a wireless communication system. The terminal includes a positioning device for obtaining a precise geographical position of the terminal. An access network of the communication system estimates an approximate geographical position of the terminal. In order to limit the size of the messages exchanged between the terminal and the access network, only a truncated part of the information about the precise geographical position of the terminal is transmitted by the terminal to the access network. The access network determines the precise geographical position of the terminal by combining the truncated information received from the terminal with the approximate geographical position estimated by the access network.

This application relates to devices and methods of authenticating messages exchanged over a network between a transmitter and a receiver, the method comprising: at a transmitter side, for transmitting a message, generating a truncated MAC code by selecting or generating predetermined bits from a message authentication code (MAC) computed over a concatenation of a predetermined part of the message with at least one predetermined part of a previously transmitted message; wherein a bitlength of truncated MAC code is smaller than a bitlength of the message authentication code (MAC) appending the truncated MAC code to the message for transmission; at a receiver side, for authenticating a message, receiving a previously transmitted message, the message and the truncated MAC code, generating an expected truncated MAC code by selecting or generating predetermined bits from a message authentication code (MAC) computed over a concatenation of a predetermined part of the message with at least one predetermined part of a previously transmitted message; authenticating the message and the previously transmitted message if the truncated MAC code as received is identical to the expected truncated MAC code.

A method and system for correlating messages within a wireless transaction, each of the messages requiring a unique message identifier, the method having the steps of: creating a transaction identifier, the transaction identifier being the same for related messages; and adding to the transaction identifier a message index, the message index corresponding to a number of a message within a transaction, whereby the transaction identifier and message index form the unique message identifier for each of the messages.