Abstract: In an example, the present invention includes an integrated system on chip device. The device is configured on a single silicon substrate member. The device has a data input/output interface provided on the substrate member. The device has an input/output block provided on the substrate member and coupled to the data input/output interface. The device has a signal processing block provided on the substrate member and coupled to the input/output block. The device has a driver module provided on the substrate member and coupled to the signal processing block. In an example, the device has a driver interface provided on the substrate member and coupled to the driver module and configured to be coupled to a silicon photonics device. The device also has an interface configured to communicate between the silicon photonics device and the control block.

Abstract: A device, such as a transceiver or a sensor, is provided. An interface circuit of the device terminates a signal line with an impedance matching an impedance of the signal line. A controller of the device is configured to transmit or receive data on the signal line through the interface circuit and according to a communication protocol employing pulse width modulation (PWM) for data encoding. A system having two or more devices with impedance matching interface circuits, and a method for communication with a device having an impedance matching interface circuit, are also provided.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus that may be used to perform joint spatial processing for space frequency block coding and/or non-space frequency block coding channels in a wireless communications system. In aspects, apparatus and methods are provided for wireless communications, comprising receiving a signal from a serving cell and zero or more interfering cells, and processing the received signal, wherein the processing includes joint processing of at least two Resource Elements (REs), selected to conform to a Space Frequency Block Coding (SFBC) scheme in which transmitted data is modulated across two REs, to detect an interfering cell signal and canceling of the detected interfering cell signal from the received signal.

Abstract: Aspects of the subject disclosure provide a reader device for managing operation of an automatic gain control (AGC) sub-circuit on a host device computing device. In some implementations, a reader device of the subject technology can include a controller, a noise generator, noise coupling circuitry, and a 3.5 mm audio plug including an audio bus that is configured for insertion into a headphone port of a host device, such as a smart phone or tablet computer. Upon connection of the reader device to the host computing device, the reader device can provide an intentional noise signal to the host device via a signal path where the intentional noise signal is configured to establish a substantially stable gain amount at the AGC sub-circuit.

Abstract: The present invention provides a method, a device, and a system for processing a communications system signal. The method includes: acquiring, by a communications system of a first standard, a first message, where the first message carries a signal strength, sent by a communications system of a second standard, on a frequency where interference of the communications system of the second standard on the communications system of the first standard exists; and performing, by the communications system of the first standard, according to the signal strength, filtering processing for a signal to be processed of the communications system of the first standard. In embodiments of the present invention, interference can be reduced and receiving performance can be improved.

Abstract: The present invention and its embodiments are made to provide for a feasible solution for determining transport block size in a wireless communication system. The method comprising of selecting plurality of transport block sizes near to the queue size of the user data and calculating the code rate for the plurality of selected transport block sizes and calculating code rate derived from Channel Quality Information (CQI) index. The method further comprising of comparing the code rates of the plurality of selected transport block sizes with the code rate derived from CQI index and filtering the selected transport block sizes having number of zero padding below a threshold value and having code rates equal or less than the code rate derived from CQI index and selecting one transport block for each modulation order from among the filtered transport block sizes which require lower number of Physical Resource Blocks (PRBs) to transmit.

Abstract: A method for supervision of faults in a receiving signal chain of a wireless communication comprises providing (210) of data representing measured received powers in the receiving signal chain at a number of time instances. The method further comprises determining of (220) a noise floor value at a number of time instances based on the data representing measured received powers. A time evolution of the determined noise floor values is registered (230) and any occurrence of a fault in the receiving signal chain is detected (240) based on the registered time evolution. An arrangement for performing supervision of faults in a receiving signal chain is also presented.

Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for broadcasting a local signal B that corresponds to a coverage hole in a remote signal B. The system includes a first transmitter at a first location and a second transmitter at the first location that transmits local signal B corresponding to remote signal B transmitted from a remote transmitter. The second transmitter broadcasts the local signal B to at least part of a coverage hole in a coverage area of remote signal B. Also disclosed is a method for consolidating allocated wireless spectrum. The method includes identifying a guard band in an allocated band of wireless spectrum, reassigning an existing channel occupying a portion of the allocated band of wireless spectrum to the guard band via selective single frequency network infill to yield a reassigned channel, and freeing the portion of the allocated band of wireless spectrum.

Abstract: A mobile terminal and a method for transmitting and receiving radio frequency signals, including: an antenna, a wireless communication transmitting module and a mobile multimedia broadcast receiving module which are connected to the antenna, a first filter which is connected between the wireless communication transmitting module and the antenna, and a second filter which is connected between the mobile multimedia broadcast receiving module and the antenna, wherein the first filter and the second filter are configured to suppress sideband noise generated on the mobile multimedia broadcast receiving module when the wireless communication transmitting module transmits signals.

Abstract: A vehicle and a method for controlling the same are provided. In particular, linking information of a broadcast signal having been output during a turn-off mode is transmitted to a DAB receiver upon receiving a turn-on signal. The vehicle includes a Digital Audio Broadcasting (DAB) receiver that is configured to receive a first DAB signal that corresponds to a selected first broadcast signal. In addition, a speaker outputs the first broadcast signal based on the received first DAB signal or a first frequency-modulation (FM) signal corresponding to the first broadcast signal. In response to receiving a turn-on signal, a controller transmits linking information of the first broadcast signal from among linking information of a plurality of broadcast signals to the DAB receiver to output the first broadcast signal output during a turn-off mode.

Abstract: An end user can sample a radio or television broadcast, generate a user representation of the broadcast sample, and send the user representation to a comparison system, which also receives known representations of content broadcast by multiple different stations. The known representations are stored in a continuous fashion, and represent actually broadcast content. The comparison system identifies the source of the broadcast sample by comparing the user representation to the known representations associated with each of the different stations using a bit count method, such as the Hamming distance. By comparing two representations of content that was actually broadcast, a broadcast source can be identified without requiring the use of watermarks, timestamps, or a database of discreet content items.

Abstract: A method, apparatus, and computer program for interference cancellation in communication systems is provided. The method includes controlling of code block to physical layer mapping. The controlling includes mapping code blocks to the physical layer such that interfering signals become self-decodable at a receiving bandwidth of the user equipment.

Abstract: An apparatus includes an AWG demultiplexer having first and second adjacent input ports. The first input port is configured to receive a first WDM data-bearing signal, the second input port is configured to receive a first WDM LO signal. The first and second input ports are located such that individual channels of said WDM data-bearing signal route to a first set of output ports, and individual channels of said WDM LO signal route to a second set of output ports interleaved with the first set.

Abstract: Example embodiments of the present invention relate to an optical node comprising of at least two optical degrees; a plurality of directionless add/drop ports; and at least one wavelength equalizing array, wherein the at least one wavelength equalizing array is used to both select wavelengths for each degree, and to perform directionless steering for the add/drop ports.

Abstract: A distributed antenna system includes a plurality of remote units configured to service different regions of a service area, and a head-end unit configured to process and transmit downlink signals from base stations to the remote units over optical cables, and to process and transmit uplink signals from the remote units to the base stations, wherein the remote units are configured to adjust or filter a level of downlink signals from the head-end unit and to transmit the adjusted or filtered downlink signals to mobile stations, and to process and transmit uplink signals from mobile stations to the head-end unit over the optical cables.

Abstract: A WDM system having at least two channels, each of which employs two polarizations, is arranged so that the start times of symbols carried by one polarization of a channel are displaced in time from the start times of symbols carried by the other polarization of that channel, e.g., the start time for each symbol on one polarization is not substantially synchronized with the closest-in-time symbol start time on the other polarization of that channel. Preferably, the data signals are modulated using a return-to-zero (RZ) format and the start times of the symbols of the data signal carried by one polarization of a channel is offset from the start time of the symbols data signal carried by the other polarization of that channel by between 20% to 80%—preferably 50%—of the symbol period of the data signals, when the data signals have the same symbol period.

Abstract: Methods and apparatus at an evolved Node B (eNB) and user equipment (UE) in cells operating in time division duplex with a first configuration and having a neighbor cell eNB operating in time division duplex with a second configuration, the methods and apparatus: identifying potential eNB-to-eNB; UE-to-UE; eNB-to-UE; and UE-to-eNB interference. Further methods and apparatus to report interference including enumerated interference types to neighbor cell eNBs. Further, methods and apparatus for interference mitigation.

Abstract: A method, apparatus and computer program product are provided for enhancing data exchange between an access point (AP) and station (STA) in a wireless network when the exchange must be interrupted for the AP to perform other services while data remains buffered for later exchange. AP downlinks an indicator that more data remains for exchange together with a request for the STA to enter sleep mode for a duration scheduled by the AP. Sleep duration may be sent in the medium access control (MAC) header of a data frame, with the indicator of more data and the indicator of the sleep mode request being contained in the frame control (FC) segment of the MAC header. The STA may uplink an acknowledgement (ACK) of the sleep mode. Alternatively, the AP may downlink an ACK of the STA's indication of more data confirmation together with sleep mode indication and duration.

Abstract: Outer loop link adaptation for device resumption. A user equipment (UE) and base station (BS) may be in communication in a first network (e.g., an LTE network). Communication between the UE and the BS may be interrupted, e.g., due to a long fading environment, the UE tuning away to a second network (e.g., a CDMA network). Accordingly, the measured error rate may increase dramatically. After resumption from the interruption, a negative offset may be applied to a reported SINR value from the UE due to the previous increase in error rate. Upon improvement in the error rate, a larger, positive offset adjustment may be added to the negative offset, allowing the estimated SINR to return to reported SINR more quickly. Additionally, the error rate estimation may be adjusted to converge to a more recently measured more quickly by decreasing a feedback filter coefficient.

Abstract: When a base station apparatus and a mobile station apparatus communicate with each other using a wider frequency band consists of multiple carrier components, efficient communication is achieved without increasing control information (control signal) notified from the base station apparatus to the mobile station apparatus. The base station apparatus and the mobile station apparatus communicate with each other such that each of multiple uplink carrier components corresponds to each of multiple downlink carrier components or multiple downlink carrier component groups including multiple downlink carrier components.

Abstract: Aspects of the present disclosure relate to techniques for communicating Channel State Information (CSI) feedback. According to certain aspects, a method for wireless communications is provided. The method may include determining a modulation coding scheme (MCS) or a rate for receiving channel state information. The method may further include transmitting a frame comprising a control field indicating the determined MCS or the determined rate and at least one field indicating that at least a portion of channel state information is requested.

Abstract: One embodiment describes a method for real time error correction in a data transmission system that includes receiving a first communication signal on a first programmable logic device from a second programmable logic device via a first serial link, receiving a second communication signal on the first programmable logic device from the second programmable logic device via a second serial link, in which the first serial link and the second serial link are disposed in parallel with each other and are configured to communicate over a single conduit, and the first communication signal and the second communication signal are representative of identical information.

Abstract: A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. An encoding part subjects transport data to a block encoding process to form block encoded data. A modulating part modulates the block encoded data to form data symbols; and an arranging (interleaving) part arranges (interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged (interleaved) block encoded data to the modulating part. In this way, there can be provided a transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.

Abstract: A power amplifier system includes an input operable to receive an original value that reflects information to be communicated and an address data former operable to generate a digital lookup table key. The power amplifier system also includes a predistortion lookup table coupled to the address data former and a power amplifier having an output and coupled to the predistortion lookup table. The power amplifier system further includes a feedback loop providing a signal associated with the output of the power amplifier to the predistortion lookup table and a switch disposed in the feedback loop and operable to disconnect the predistortion lookup table from the output of the power amplifier.

Abstract: Logic for direct current (DC) estimation of a wireless communication packet. Logic may determine a first DC estimation based upon a first set of sequences in a preamble of the wireless communication packet. Logic may determine a second DC estimation based upon a second set of sequences in the preamble. Logic may select one of the DC estimations based upon a frequency-offset estimation. Logic may remove one of the DC estimations from the packet. Logic to null DC bins that result from a Fourier transform of the packet to mitigate transmitter DC bias. And logic to determine a correction for the packet based upon a difference between a predetermined guard interval value and a received guard interval value and to apply the correction to the packet.

Abstract: Methods described herein are for wireless communication systems. One aspect of the invention is directed to a method for a HARQ process, in which the HARQ process includes a first transmission of an encoder packet and at least one retransmission. The method involves allocating a transmission resource for each respective transmission. The method involves transmitting control information from a base station to a mobile station for each respective transmission. The control information includes information to uniquely identify the HARQ process and an identification of one of a time resource, a frequency resource and a time and frequency resource that is allocated for the transmission. In some embodiments of the invention, specific control information is signalled from a base station to a mobile station to enable RAS-HARQ operation. In some embodiments of the invention, retransmission signaling in included as part of regular unicast signaling used for both first transmission and retransmissions.

Abstract: A method of transmitting data in a communication network is provided, wherein the method includes receiving an error message indicating that a data packet precoded by using a first matrix and transmitted a first time by using a cooperative transmission scheme is not decoded correctly, preparing an recoded data packet by precoding the data packet using a second matrix which is different to the first matrix, and retransmitting the recoded data packet.

Abstract: A radio device/user equipment determines that a later received grant of bundled uplink resources collides with an earlier received grant of bundled uplink resources. The earlier received grant has associated with it an active re-transmission process. In response to that collision determination, at least a re-transmission (HARQ) buffer associated with the earlier received grant is flushed. In one embodiment all HARQ buffers are flushed; in another the HARQ buffer associated with the earlier received grant is flushed while the one associated with the later received grant is not. Several ways are described to determine whether there is a collision: whether the later received grant aligns with a boundary of the resources granted by the earlier received grant, and whether there is an actual collision among the different HARQ processes. Calculating HARQ process numbers is also described where an offset is used to account for the grants allocating bundled TTIs.

Abstract: Certain aspects of the present disclosure provide methods and apparatuses for determining a packet number for a packet, based on a transmit packet number (TPN), transmitted with the packet, a locally maintained base packet number (BPN), and a value of the TPN relative to one or more edges of a locally-maintained receive window. An example method generally includes receiving a packet having a transmitted packet number (TPN), maintaining a base packet number (BPN), maintaining a receive window defined by a first edge a and a second edge b, determining a value i of the TPN relative to at least one of the first edge a or the second edge b of the receive window, and calculating a packet number (PN) for the packet based on the TPN, the BPN, and the determination.

Abstract: A sample voltage is received from a device at a first slicer element and a second slicer element. A decision by the first slicer element based on the sample voltage is identified and compared with a decision of the second slicer element based on the sample voltage. The decision of the second slicer element is to be generated from a comparison of the sample voltage with a reference voltage for the second slicer element. Comparing the decisions can be the basis of a soft error ratio determined for a device.

Abstract: The present invention relates to methods of allocating a Timing Advance (TA) value used for at least one timing advance group in a wireless access system for supporting carrier aggregation (CA). According to one embodiment of the present invention, a method of adjusting transmission timing for at least one TA group in a wireless access system for supporting CA includes: receiving, by a terminal, a physical downlink control channel (PDCCH) signal including a reserved bit indicating at least one TA group; receiving a medium access control (MAC) message including at least one TA value corresponding to at least one TA group; and transmitting an uplink signal by applying a TA value corresponding to a TA group in the TA group that the reserved bit indicates. At this point, each of the at least one TA group may include at least one primary cell.

Abstract: The present invention provides a transmission method and apparatus for cancelling inter-carrier interference in wireless communication systems. Particular carriers are not used for data transmission but carry weighted data to cancel the ici interference of a first group of interfering sub-carriers onto a second group of victim sub-carriers. The weights are inversely proportional to the frequency offset between the interfering sub-carriers and the victim sub-carriers.

Abstract: A wireless communication system serves a first wireless device with a first access node using a frequency band and serves a second wireless device in an adjacent cell with a second access node that uses the same frequency band. The communication of a first resource block is scheduled between the first wireless device and the first access node. The communication of a second resource block between the second wireless device and the second access node is also scheduled. The scheduling of the first resource block and the second resource block correspond in time and frequency. The first resource block is encoded with a first orthogonal code from a family of orthogonal codes. The second resource block is encoded with a second orthogonal code from the family of orthogonal codes. After encoding, the first resource block and the second resource blocks are transmitted using the frequency band.

Abstract: Methods and apparatuses are provided for transmitting control information in an SC-FDMA system. A UE determines cyclic shift values for SC-FDMA symbols. The UE acquires cyclic shift sequences by the cyclic shift values. The UE applies the cyclic shift sequences to the control information on an SC-FDMA symbol basis. The control information applied with the cyclic shift sequences in the SC-FDMA symbols is transmitted to a Node B.

Abstract: The invention concerns a method of scheduling the reception of at least one System Information block by a mobile device being adapted to be associated with at least a first Subscriber Identity and a second Subscriber Identity, the System Information block being intended to the second Subscriber Identity and being broadcasted with a first periodicity over a network by at least one base station of the network in the form of a plurality of bursts, according to a given frame structure having TDMA frames, each TDMA frame comprising a plurality of time gaps, at least one first time gap of a first TDMA frame being allocated to communication activity on the first Subscriber Identity, at least one burst of the System Information block being broadcasted over the network during a second time gap of a second TDMA frame.

Abstract: A method for allocating uplink and downlink physical channels to improve throughput of a wireless access system is disclosed. A method for allocating channels to optimize a wireless access system which supports radio frequencies comprises configuring one or more physical channels in a transmitter; allocating first physical channels to a receiver considering features of the one or more physical channels; and transmitting one or more control channels to the receiver through a predetermined physical channel of the first physical channels, the control channels including configuration information of the first physical channels allocated to the receiver.

Abstract: Multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) communication is provided which allows high accuracy estimation of frequency offset, high accuracy estimation of a transmission path fluctuation and high accuracy synchronization/signal detection. Pilot symbol mapping is provided for forming pilot carriers by assigning orthogonal sequences to corresponding subcarriers among OFDM signals which are transmitted at the same time from respective antennas in the time domain. Even when pilot symbols are multiplexed among a plurality of channels (antennas), this allows frequency offset/phase noise to be estimated with high accuracy.

Abstract: Multiple antennas employed at transmitting and receiving nodes can significantly increase a MIMO system capacity, especially when channel knowledge of link(s) between the transmitting and receiving nodes is available at the transmitting node. Channel knowledge may be acquired through feedback provided by the receiving node based on a plurality of common pilots transmitted by the transmitting node. The common pilots may include legacy and non-legacy pilots. If the feedback indicates that data demodulation at the receiving node can be enhanced, the transmitting node may also transmit demodulation pilot signal(s), which may coincide with the transmission of data. The receiving node can use the demodulation pilot signal(s), alone or with the common pilot signal(s), to demodulate data received from the transmitting node. The transmitting node may notify the receiving node to monitor for the demodulation pilot signal(s) through higher layer signaling and/or scheduling orders over a control channel.

Abstract: A method and an apparatus of transmitting scheduling request (SR) in a wireless communication system are provided. The method includes configuring a physical uplink control channel (PUCCH) for a SR in a subframe, the subframe comprising a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols, wherein one SC-FDMA symbol on the PUCCH is punctured and transmitting the SR on the PUCCH in the subframe.

Abstract: Method and apparatus for controlling in-device coexistence (IDC) interference in a wireless communication system are described in the present invention. The present invention includes transmitting UE capability information whether the UE has a capability to measure IDC, to a base station (BS); receiving measurement configuration information whether the UE is allowed to send IDC indication, from the BS; and transmitting the IDC indication and at least one of measurements which are a measurement in consideration of IDC and a measurement without consideration of IDC to the BS. It is possible to control reducing occurrence of in-device coexistence interference.

Abstract: There is provided a communication apparatus communicating with a master apparatus generating events at a constant time interval via a network, including: a clocking unit clocking a time; an event generator generating an event based on the clocking unit in accordance with event interval information specifying a time interval for event generation; a storage storing a first timestamp representing a time when the event is generated in the event generator; a receiver receiving, from the master apparatus, a frame containing a second timestamp representing a time of the event generated in the master apparatus; and an event interval corrector correcting the event interval information so as to make a timing of event generation in the event generator closer to a timing of event generation in the master apparatus based on the first timestamp, the second timestamp, and a pre-acquired time difference between the clocking unit and the master apparatus.

Abstract: Aspects of the present disclosure provide communications between local and remote devices having low-frequency (LF) and high-frequency (HF) circuits. As may be implemented in accordance with one or more embodiments, the local device transmits an LF signal to the remote device, which synchronizes its clock based on the LF signal. Another LF signal is communicated from the local device to the remote device using a reduced quality factor, which can be implemented to facilitate synchronization. The clock is resynchronized based on the second LF signal and used to transmit an HF signal with a time delay. The local device synchronizes its clock based on the HF signal, and transmits another HF signal to the remote device using the clock and another time delay. The remote device re-synchronizes its clock based on the second HF signal while accounting for a trip time for communicating the first and/or second HF signals.

Abstract: A method, an apparatus, and a computer program product are described. The apparatus generates a receive clock signal for receiving data from a multi-wire open-drain link by determining a transition in a signal received from the multi-wire open-drain link, generating a clock pulse responsive to the transition, delaying the clock pulse by a preconfigured first interval if the transition is in a first direction, and delaying the clock by a preconfigured second interval if the transition is in a second direction. The preconfigured first and/or second intervals are configured based on a rise time and/or a fall time associated with the communication interface and may be calibrated by measuring respective delays associated with clock pulses generated for first and second calibration transitions.

Abstract: The present application is directed to data communication. More specifically, embodiments of the present invention provide a SerDes system that includes multiple communication lanes that are aligned using a clock signal. Each of the communication lanes comprises a receiver, a buffer, and a transmitter. The receiver uses multiple sampling lanes for data sampling and clock recovery. Sampled data are stored at the buffer and transmitted by the transmitter. There are other embodiments as well.

Abstract: Disclosed are a method for conducting data encryption and decryption using a symmetric cryptography algorithm and a table look-up device. The method comprises: when it is determined that it is required to use S-boxes to look up a table in a symmetric cryptography algorithm, determining all types of S-boxes to be used; for each type of S-box, determining the total number Ni of the type of S-box, and when Ni is larger than 1, determining that the type of S-box meets a multiplexing condition; and when data encryption and decryption are conducted using the symmetric cryptography algorithm, multiplexing at least one type of S-box which meets the multiplexing condition. The present application can reduce the occupation by the symmetric cryptography algorithm of hardware resources under the condition of comparative shortage of hardware resources.

Abstract: A method and apparatus are described securely testing an integrated circuit (IC). When the IC is powered on, a first bit stream including unencrypted data bits and encrypted data bits is received by the IC, a second bit stream is generated based on a pseudorandom pattern, a third bit stream is generated by convolving the first bit stream with the second bit stream, the third bit stream is fed to at least one selected test data register (TDR), (i.e., a shift register), in the IC, a fourth bit stream is generated by delaying the second bit stream, and a fifth bit stream is generated by convolving a sixth bit stream output by the at least one selected TDR with the fourth bit stream. The fifth bit stream includes the same unencrypted data bits and encrypted data bits as the first bit stream.

Abstract: The present invention relates to a technique which provides a function of compressed encryption large pieces of plaintext information in a single ciphertext in order to improve a space efficiency of the encryption data which occupies most of a storage space to design an efficient SHE technique which is a base of the FHE technique design. More specifically, the present invention relates to a technique which is designed to improve a structure in which only one bit is encrypted/decrypted in the technique of the prior art to encrypt/decrypt multiple bit information to improve the space efficiency for storing a ciphertext.

Abstract: A user device is configured for communication with a distributed verification system over a network. The user device generates first and second keys from a master key for a password vault or other credential store, provides the first key to the distributed verification system, encrypts the credential store based at least in part on the second key, and provides the encrypted credential store to the distributed verification system. The credential store is encrypted utilizing the second key and information that is stored in a distributed manner over a plurality of servers of the distributed verification system. For example, encrypting the credential store illustratively comprises generating a ciphertext by encrypting the credential store utilizing the second key, obtaining a third key stored in the distributed manner over the servers, and encrypting the ciphertext utilizing the third key to generate the encrypted credential store that is provided to the distributed verification system.

Abstract: A capability for secure communication of data from a source device to a destination device is presented. The source device has a device identifier associated therewith. The source device stores an encrypted version of the device identifier that is encrypted based on a master key of the destination device. The source device stores an encryption key. The source device communicates data to the destination device in a secure manner by encrypting the data using the encryption key and propagating the encrypted version of the device identifier and the encrypted data to the destination device. The destination device recovers the data sent by the source device by decrypting the encrypted version of the device identifier based on the master key to determine the device identifier, determining a decryption key based on the device identifier, and decrypting the encrypted data based on the decryption key to recover the data sent by the source device.

Abstract: A method of allowing inclusion of a structural component which is the confidential property of an owner in a third party remote product simulation, the method comprising, in owner modelling software: importing a component model including geometry of the component, mesh data and at least one material property of the component; encrypting a secure part of the component model which is to remain confidential to the owner using a software key, and leaving an interface part of the component model unencrypted; adding a restriction to the component model before the component model is exported, the restriction specifying simulation result data which is not to be visible to the third party; and exporting the partially encrypted component model to the third party for use in third party modelling software.