Abstract: The present invention relates to generating an interference pattern for controlling inter-cell interference, a method for signaling therefor, and an apparatus utilizing the method. The method for signaling an interference pattern according to the present invention may comprise the steps of: determining the length and cyclic shift offset for a first interference pattern to be allocated to a set reference resource from among interference pattern sets; generating a cell-specific sequence to which the cyclic shift offset of the first interference pattern has been applied; and allocating the first interference pattern and cell-specific sequence to a resource and transmitting same.

Abstract: A signal power tester in provided. The signal power tester includes at least one interface to communicatively couple the signal power tester unit to a front-haul communication link used for communicating front-haul data to a remote radio head (RRH) having one or more antenna ports. The signal power tester further comprises a programmable processor, coupled to the interface, configured to execute software, wherein the software is operable to cause the signal power tester to do the following: determine a representative segment indicative of a noise floor of a communication signal; determine whether the representative segment meets selected criterion; determine a translation factor for the representative segment; and measure power of the communication signal based on applying the translation factor.

Abstract: A system for cancelling interference in a wireless network, the system comprising apparatus for computing and outputting at least N weighting vectors; and apparatus for cancelling interference from antennae outputs received by the system using the weighting vectors respectively by converting the weighting vectors into FIR filter coefficients and applying FIR filters corresponding to the FIR filter coefficients to derivatives of antennae outputs received by the system. The apparatus for computing and outputting weighting vectors may be operative by estimating a spatial signature while distinguishing interference spatial signature from desired signal spatial signature although both are received simultaneously.

Abstract: Systems and methods for performing wavelength conflict detection are provided. These are to detect situations in optical networks where two instances of the same wavelength channel have been added. Wavelength conflict detection is performed for each of a plurality of possible wavelength channels that could be present in an optical signal, each wavelength channel that is present modulated by a pilot tone signal with a respective pilot tone frequency, the pilot tone signal carrying M-ary pilot tone data, M=2n, n?1, with a respective one of M different sequences being used to represent each of M possible data values over a data value period. Conflict detection for each wavelength channel involves performing correlation peak detection using each of the M different sequences to determine correlation peaks for each of the M different sequences, and, based on the determined correlation peaks, determining whether multiple instances of the wavelength channel are present in the optical signal.

Abstract: A method for transmitting data over an optical communication system is performed by sequentially tuning a laser beam among a plurality of optical wavelengths. At least one data signal is modulated onto the plurality of optical wavelengths by sequentially switching the modulation of the data signal among the plurality of optical wavelengths such that at any given time the data signal is only modulated onto a single one of the optical wavelengths. The sequential switching is performed at a rate equal to or greater than a response time of one or more optical amplifiers used for amplifying the optical wavelengths.

Abstract: Jamming systems uses wireless signals (e.g., radio waves) to deliberately prevent a target from accurately receiving desired wireless signals. The examples herein disclose an anti-jamming system that mitigates an effect that jamming signals have on a radio receiver. To do so, the anti-jamming system generates a plasma shield in a region of space between the target and the jamming system. Plasma is opaque to electromagnetic energy meaning that radio signals, lasers, microwave energy, and the like are unable to pass through the plasma, and instead, are absorbed by the plasma. As such, the jamming signals emitted by the jamming system are absorbed by the plasma shield and do not interfere with the target's radio receiver.

Abstract: This invention presents methods for signal detection and transmission in MU-MIMO wireless communication systems, for inverse matrix approximation error calculation, for adaptively selecting the number of multiplexed UEs in a MU-MIMO group, for adaptively choosing a modulation and channel coding scheme appropriate for the quality of MU-MIMO channels with the approximation error of matrix inverse being incorporated.

Abstract: Provided a method in a mobile communication system comprising a base station adapted to create a precoding matrix for applying to data to be transmitted to a user terminal by using a channel estimate determined from a Reference Signal (RS) transmitted from the user terminal to the base station, the user terminal being adapted to transmit to the base station a Channel State Information (CSI) report, wherein the method comprises: the base station creating a relationship between the received CSI report and Interference pluses Noise covariance matrix that reflects amount of interference and noise observed at the user terminal's antennas, the base station determining the Interference pluses Noise covariance matrix based on the created relationship, and the base station using the determined Interference pluses Noise covariance matrix to estimate SINR for each data layer conditioned on the precoding matrix.

Abstract: A method for determining a Modulation and Coding Scheme (MCS) and power control includes determining an error rate of a communication channel between the UA and at least one of the base station and the RN. When the error rate is below a first threshold, the method includes at least one of increasing the MCS, and reducing a transmission power of the UA. When the error rate is above a second threshold, the method includes at least one of decreasing the MCS, and increasing a transmission power of the UA.

Abstract: It is disclosed an optical coherent receiver comprising a number of decoding blocks configured to implement iterations of a FEC iterative message-passing decoding algorithm. The decoding blocks are distributed into two (or more) parallel chains of cascaded decoding blocks. The receiver also comprises an intermediate circuit interposed between the two parallel chains. The optical coherent receiver is switchable between (i) a first operating mode, in which the intermediate circuit is inactive and the two parallel chains separately implement the FEC message-passing decoding algorithm on respective client channels; and (ii) a second operating mode, in which the intermediate circuit is active and the two parallel chains jointly implement the FEC message-passing decoding algorithm on a same client channel, by cooperating through the intermediate circuit.

Abstract: There is provided a communication control device for controlling a communication device on a communication network, the communication control device including: a memory; a processor coupled with the memory and configured to: divide a route for a communication with the communication device into a plurality of sections; determine a communication control device for a failure recovery in a section of the plurality of sections, the communication control device for the failure recovery restoring a failure in the section of the plurality of sections; specify a section of the plurality of sections where the failure occurs when the failure is detected on the route; transmit failure information to the communication control device for the failure recovery corresponding to the section specified; and set a detour to the failure in the section, based on the failure information.

Abstract: The embodiments according to the present invention provide a method for being implemented at a Coverage Enhanced-Machine Type Communication device. The method comprises receiving information related with Total Aggregated Resource from a network device; and determining, according to the Total Aggregated Resource, the number of time domain repetitive transmissions for each aggregation level in a set of candidate aggregation levels, so as to blind decode an enhanced physical downlink control channel, wherein the aggregation level and the number of time domain repetitive transmissions are in an inverse proportional relation. The embodiments of the present invention further provide a corresponding method at a network device and corresponding apparatuses.

Abstract: Methods and systems for intelligent network checksum processing are disclosed. A method for intelligent network checksum processing may include receiving a data unit at a receiver network element sent from a sender network element, determining a success count of the sender network element, determining whether to perform a checksum validation at the receiver network element, wherein the determining may include skipping the checksum validation if the success count of the sender network element is greater than the predefined threshold success count, and performing the checksum validation if the success count of the sender network element is not greater than a predefined threshold success count, incrementing the success count of the sender network element if the checksum validation is performed and the checksum validation is successful, and resetting the success count of the sender network element if the checksum validation is performed and the checksum validation is unsuccessful.

Abstract: A method for selecting a precoding matrix indicator that optimizes a retransmission is disclosed. The method comprises causing a transmission initially, with an initial rank, on two codewords, by a base station to at least one user equipment in a wireless network. When the base station receives a negative acknowledgement such that at least one codeword was not decoded successfully, then a decision is made to retransmit using a consequent rank for retransmission, wherein the consequent rank is lower than the initial rank. A precoding matrix indicator for the consequent rank retransmission is selected and a retransmission, with the consequent rank, is made to happen on the at least one codeword that was previously not successfully decoded. Apparatus, program products, and software are also disclosed.

Abstract: Group acknowledgement of a range of consecutive sequence numbers associated with non-received data. The acknowledgement includes indication of at least one endpoint of the range. It can include, for example, the sequence numbers of the first and last non-received data or the last received data packet. The feedback can refer also to a single sequence number, relating to a single PDU. The triggering of the acknowledgement can be done by conventional gap detection or receiver timers.

Abstract: The present disclosure relates to a 5G or pre-5G communication system which will be provided in order to support a higher data transmission rate than in 4G communication systems such as LTE.

Abstract: The present invention provides a wireless communication method supporting hybrid automatic repeat request. The method includes: sending first hybrid automatic repeat request (HARQ) process quantity indication information to a user equipment UE; and if second HARQ process quantity indication information is further sent to the UE, determining a second HARQ process quantity according to the second HARQ process quantity indication information, and performing data transmission with the UE according to the determined second HARQ process quantity. Correspondingly, the present invention further provides a base station and the user equipment. In the present invention, the base station and the user equipment can perform data communication with the UE based on different HARQ timing relationships and HARQ process quantities, thereby being capable of better supporting UEs adopting different functional characteristics.

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device for a terminal to transmit an uplink signal according to a normal HARQ operation in a wireless communication system supporting a carrier merge, the method comprising the steps of: forming a first cell set with a FDD and a second serving cell set with a TDD; receiving a PHICH signal from a subframe #(n?m?p) of the first serving cell, or receiving a PDCCH signal from a subframe #(n?m) of the first serving cell; and transmitting a PUSCH signal from a subframe #n of the second serving cell, in correspondence to the PHICH signal or the PDCCH signal, wherein n is an integer greater than or equal to 0, m is an integer greater than or equal to 1, and p is an integer greater than or equal to 1.

Abstract: A system and method of variable latency data transmission. The method includes transforming a first original data frame in accordance with a first time-frequency transformation so as to provide a first transformed data frame wherein the first time-frequency transformation is associated with a first latency. The method further includes transforming a second original data frame in accordance with a second time-frequency transformation so as to provide a second transformed data frame wherein the second time-frequency transformation is associated with a second latency. Using a transmitter, elements of the first transformed data frame are transmitted over a first frame period corresponding to the first latency and elements of the second transformed data frame are transmitted over a second frame period corresponding to the second latency wherein the first frame period is different from the second frame period.

Abstract: A method may include allocating transmission resource patterns among multiple terminals. The transmission resource patterns may be associated with vectors from multiple matrices. Each element of the matrices may correspond to a different frequency-domain resource unit and each element position within the vector may correspond to a different time-domain resource unit. Each of the elements may occur at least twice within each matrix of the multiple matrices. Each element of each matrix of the multiple matrices may be unique relative to each other element of the same column of the same matrix and may be unique relative to each other element of the same row of the same matrix.

Abstract: The invention relates to a method for determining the transmission of a sounding reference signal (SRS) by a terminal in a wireless communication system, which can include a step of determining whether a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) in a first timing advance (TA) group, or an SRS in a second TA group in the same subframe, is to be transmitted when the transmission timing of the PUCCH or the PUSCH in a cell of the first TA group and the transmission timing of the SRS in a cell of the second TA group overlap each other in the same subframe.

Abstract: A method of a first cell for supporting a downlink channel demodulation at a user equipment, the method includes transmitting, by the first cell to the user equipment via a higher layer signaling, information on a Cell-specific Reference Signal (CRS) of a second cell including Multicast/Broadcast over Single Frequency Network (MBSFN) subframe configuration information of the second cell; and transmitting, by the first cell to the user equipment, a downlink signal on the downlink channel, wherein the information on the CRS of the second cell is used by the user equipment to demodulate the downlink channel from the first cell.

Abstract: A method and apparatus for facilitating communication through a wireless communication system configured for transmission of general-purpose data, are provided. A transparent radio bearer is instantiated in a device and is configured to interface with an application of the device. A transparent logical channel is also instantiated in the device and is configured to interface with a medium access layer of the device. The medium access layer forms a part of a chain of protocol layers operatively configured to facilitate communications to another device associated with the wireless communication system. The transparent radio bearer maps onto the transparent logical channel in order to bypass at least one sub-layer of the chain of protocol layers while conveying data between the application and the medium access layer of the device.

Abstract: Embodiments of the present disclosure provide an information transmission method and an apparatus, where the information transmission method includes: determining, by a base station, a first transmission resource; sending, by the base station, first information using the first transmission resource, where the first information includes at least one of system information or control information for scheduling system information; determining, by the base station, at least one second transmission resource; and sending, by the base station, second information to UE by using the second transmission resource, where the second information includes at least one of: a paging message, a random access response message, a contention resolution message, control information for scheduling a paging message, control information for scheduling a random access response message, or control information for scheduling a contention resolution message.

Abstract: Methods, apparatuses, computer readable media for downlink (DL) link adaptation with block acknowledgement (BA) feedback (FB). An apparatus of an access point comprising processing circuitry is disclosed. The processing circuitry configured to encode a first downlink (DL) multi-user (MU) physical (PHY) layer convergence procedure (PLCP) protocol data unit (PPDU)(DL MU PPDU) comprising first DL resource allocations for one or more stations and first data encoded in accordance with the first DL resource allocations. The processing circuitry further configured to decode block acknowledgments (BAs) from the one or more stations, the BAs responsive to the first data and comprising link adaptations, and determine second DL resource allocations based on the link adaptations.

Abstract: A first communication device receives a physical layer (PHY) data unit from a second communication device. The PHY data unit includes multiple medium access control (MAC) data units aggregated in an aggregate MAC data unit. The first communication device generates an acknowledgment data unit to acknowledge receipt of the multiple MAC data units. The acknowledgment data unit includes (i) a length indication that indicates a length of an acknowledgement field, and (ii) the acknowledgment field of the indicated length. The acknowledgement field includes respective acknowledgement information for the multiple MAC data units. The first communication device transmits the acknowledgment data unit to the second communication device.

Abstract: A method is provided for transmitting Acknowledgement/Negative Acknowledgement (ACK/NACK) information in a wireless communication system. A User Equipment (UE) configures a Physical Uplink Control Channel (PUCCH) format 3 for transmission of the ACK/NACK information. The UE transmits the ACK/NACK information for downlink transmission in a downlink subframe set including M downlink subframes in one uplink subframe, wherein M>1. A plurality of serving cells are configured for the UE and include one Primary Cell (PCell) and at least one Secondary Cell (SCell).

Abstract: Methods and apparatuses for CSI reporting mechanisms are provided. A user equipment (UE) includes a transceiver and a processor operably connected to the transceiver. The transceiver is configured to receive configuration information including a channel state information (CSI) process, a first multiple-input multiple-output (MIMO) Type, and a second MIMO Type. The processor is configured to calculate and report, in response to receipt of the configuration information, a CSI for each of the first and second MIMO Types. The second MIMO Type is Class B and is associated with a single non-zero-power CSI reference signal (NZP CSI-RS) resource that includes at most 8 antenna ports.

Abstract: A method and apparatus are provided for transmitting and receiving Uplink Control Information (UCI) in a wireless communication system. The method includes generating the UCI including at least one of channel quality indicator (CQI) information and hybrid automatic repeat request (HARQ) information; identifying, if the terminal is configured with a plurality of serving cells, a serving cell among the plurality of serving cells based on information on a cell index of the serving cell; and transmitting the UCI on a physical uplink shared channel (PUSCH) of the identified serving cell.

Abstract: Systems and methods for flexible channelization are provided. Different TU sizes are used for transmissions by different UEs. The different UEs may use different access schemes, and may transmit using time frequency resources that at least partially overlap.

Abstract: A data transmission method, a data transmission system, a control method, a control system, and a device having a base station function are provided. The control method includes: setting, in a frame structure in a time division duplex mode, a downlink channel detection sub-frame used for periodically detecting whether a downlink channel of an unlicensed frequency band is idle; and sending an uplink channel detection sub-frame configuration command to a terminal according to a configuration mode of the downlink channel detection sub-frame, so that the terminal sets, in the frame structure according to the uplink channel detection sub-frame configuration command, an uplink channel detection sub-frame used for periodically detecting whether an uplink channel of the unlicensed frequency band is idle.

Abstract: An information transmission method, user equipment, and a base station are provided. The method may include: obtaining, by user equipment, first subframe configuration information used to instruct to receive information on a first subband resource; determining, by the user equipment according to the first subframe configuration information, a first subframe for receiving the information on the first subband resource; and receiving, by the user equipment, the information only on the first subband resource in the first subframe.

Abstract: Improved switched multiplexer architecture for supporting carrier aggregation in front-end applications. In some embodiments, an N-plexing system can include an assembly of filters configured to provide N filtered paths, and a switching circuit in communication with the assembly of filters. The switching circuit can be configured to provide a plurality of switchable paths between the assembly of filters and an antenna port to allow simultaneous operation between the N filtered paths and the antenna port. In some embodiments, N can be 4 for a quadruplexing system or 2 for a duplexing system, and such a system can be implemented in a front-end module (FEM) for wireless devices.

Abstract: Upstream burst transmit times are dynamically communicated to the transmit unit in grants issued over time and in any order. A critical parameter is when to trigger the operation to order the buffered data stream for transmission. If the ordering operation is triggered too soon, a later grant of an earlier burst transmit time may not be accounted for and the subsequent transmission could violate the transmission order rule. If the ordering operation is triggered too late, the decision to transmit a burst at an earlier burst transmit time may violate the margin rule. To address these concerns, a fetch offset time in advance of each granted burst transmit time is assigned. As each fetch offset time is sequentially reached, a next partial data portion of the buffered data stream is prepared for burst communication.

Abstract: A signal processing method executed by a transmission device, the signal processing method includes receiving a plurality of frame signals; extracting a plurality of synchronization signals each for performing frame synchronization and separating data of each of the plurality of frame signals, from the received plurality of frame signals; storing the data of each of the plurality of frame signals in a memory intermittently, using respective pulse widths of the plurality of synchronization signals as intervals, based on timing at which the plurality of synchronization signals are extracted; detecting timing at which data at a predetermined location in the frame signal is written to the memory, from the timing at which the plurality of synchronization signals are extracted; and reading data of each of the plurality of frame signals from the memory according to the detected timing.

Abstract: Method and apparatus for generating a jitter reduced clock signal from signal transmitted over a communication medium includes receiving, with high speed data interface circuitry, a modulated signal that includes a binary encoded data stream. A recovered clock signal is generated from the modulated signal and tracks the long-term drift in the modulated signal. A jitter reduced clock signal is generated by filtering the recovered clock signal with a filtering circuit having a bandwidth sufficient to remove jitter while allowing the jitter reduced clock signal to track the drift in the modulated signal.

Abstract: An example method includes: obtaining sinusoidal signals comprising components of a first time-domain signal; shifting phases of the sinusoidal signals by amounts corresponding to a specified time-shift to produce phase-shifted signals, and converting the phase-shifted signals to the time domain to produce time-shifted signals. The shifting may be performed to more closely align an envelope of the first time-domain signal with an envelope of a second time-domain signal.

Abstract: An on-body sensor system includes a hub configured to be attached to a surface of a user. The hub being further configured to transmit electrical power and/or data signals into the surface and to receive response data signals from the surface. The system further including at least one sensor node configured to be attached to the surface. The sensor node being further configured to receive the electrical power and data signals from the hub through the surface and to transmit the response data signals into the surface. The electrical power from the hub can power the sensor node and cause or enable the at least one sensor node to generate sensor information that is transmitted back to the hub within the response data signals.

Abstract: A frequency-to-digital-converter based PLL (FDC-PLL) that implements the functionality of a charge pump and analog-to-digital converter (ADC) with a dual-mode ring oscillator (DMRO) and digital logic.

Abstract: A signal recovery circuit includes an oscillator configured to control a frequency of generating first clock, and a feedback circuit configured to control the oscillator in order that input data is synchronized with the first clock in accordance with a phase relation between the input data and the first clock, wherein the feedback circuit includes a controller configured to control the oscillator in accordance with the phase relation between the input data and the first clock, a first phase detector configured to generate a clock phase control signal in accordance with the phase relation between the input data and the first clock, and a state detection circuit configured to detect whether the signal recovery circuit is in a locked state or an unlocked state, based on a magnitude of an amplitude of a first component or a second component of the clock phase control signal.

Abstract: Methods, systems, and apparatuses for defending against cryptographic attacks using clock period randomization. The methods, systems, and apparatuses are designed to make side channel attacks and fault injection attacks more difficult by using a clock with a variable period during a cryptographic operation. In an example embodiment, a clock period randomizer includes a fixed delay generator and a variable delay generator, wherein a variable delay generated by the variable delay generator is based on a random or pseudorandom value that is changed occasionally or periodically. The methods, systems, and apparatuses are useful in hardware security applications where fault injection and/or side channel attacks are of concern.

Abstract: In a general aspect, a test method can include acquiring a plurality of value sets, each including values of a physical quantity or of logic signals, linked to the activity of a circuit to be tested when executing distinct cryptographic operations applied to a same secret data, for each value set, counting occurrence numbers of the values of the set, for each operation and each of the possible values of a part of the secret data, computing a partial result of operation, computing sums of occurrence numbers, each sum being obtained by adding the occurrence numbers corresponding to the operations which when applied to a same possible value of the part of the secret data, provide a partial operation result having a same value, and analyzing the sums of occurrence numbers to determine the part of the secret data.

Abstract: A test method can include: acquiring a plurality of value sets including measurements or signals corresponding with activity of a circuit when executing a set of cryptographic operations on secret data, for each value set, selecting at least two subsets of values, computing combined values and counting occurrence numbers of values transformed by a first surjective function applied to the combined values, for each operation and each possible value of a part of the secret data, computing a partial operation result, computing cumulative occurrence number sets by adding the occurrence number sets corresponding to the operations of the operation set, which when applied to a same value of the possible values of the part of the secret data, provide a partial operation result having a same transformed value by a second surjective function, and determine the part of the secret data from the cumulative occurrence number sets.

Abstract: A test method for a circuit can include: acquiring a plurality of value sets including values corresponding to activity of the circuit when the circuit executes an operation of an operation set of distinct cryptographic operations applied to a same secret data, selecting at least two subsets of values in each value set, for each value set and each value subset, counting occurrence numbers of values transformed by a respective first surjective function applied to the values of the subset, for each value set, forming all possible n-tuples associating together one of the occurrence numbers of each value subset of the value set, and computing a combined occurrence number for each n-tuple of the value set by multiplying together the occurrence numbers associated by the n-tuple, to form an occurrence number set for the value set, for each operation of the operation set, and each possible value of a part of the secret data, computing a partial operation result, computing cumulative occurrence number sets, obtained b

Abstract: The present invention relates to a test method of a circuit, comprising: acquiring a plurality of value sets comprising values of a physical quantity linked to the activity of a circuit to be tested when the circuit executes an operation of a set of distinct cryptographic operations applied to a secret data, selecting at least a first subset in each value set, for each value set, counting by a processing unit occurrence numbers of values transformed by a first surjective function applied to the values of the first subset of the value set, to form an occurrence number set for the value set, for each operation of the operation set, and each of the possible values of a part of the secret data, computing a partial operation result, computing cumulative occurrence number sets by adding the occurrence number sets corresponding to the operations of the operation set, which when applied to a same value or equivalent value of the possible values of the part of the secret data, provide a partial operation result having

Abstract: In a general aspect, a method for executing, by a circuit, an operation receiving an input data and providing an output data includes: selecting a substitution element in a substitution table as a function of the input data or an intermediary data, the substitution element being a first data set, each substitution element in the substitution table being selectable as a function of an input substitution data being a data set, and providing the first data set as an intermediary or final result of the operation, the first data set including the output data, and being such that in a set of transformed data resulting from a surjective function applied to the first data set, the transformed output data occurs with a probability equal to the probability of occurrence of each transformed data resulting from the application of the surjective function to the other data in the first data set.

Abstract: In a general aspect, a method for executing a target operation combining a first input data with a second input data, and providing an output data can include generating at least two pairs of input words each comprising a first input word and a second input word and applying to each pair of input words a same derived operation providing an output word including a part of the output data resulting from the application of the target operation to first and second input data parts present in the pair of input words, and a binary one's complement of the output data part.

Abstract: A method of executing a program operating on data encrypted by a homomorphic encryption. Execution of a program instruction includes the homomorphic evaluation of an associated function in the ciphertext space, homomorphic masking of the result of the evaluation with a previously encrypted random sequence decryption of the evaluation result thus masked followed by a new encryption and then homomorphic unmasking in the ciphertext space. The result of execution of the instruction does not appear in plain text at any time during execution of the instruction.

Abstract: A method, system, and computer program product encrypt data. A processor(s) obtains plaintext (plaintext data) and randomly generates multiple seed keys and obtains a user-defined password. The processor(s) randomly generates encryption parameters (pattern indicators, end pointers, pattern indicator pointers, and component sizes) and encrypts the plaintext by converting the plaintext data to shuffle-transform encrypted text and generating, from the shuffle-transform encrypted text and based on the encryption parameters, a plurality of encrypted blocks. The processor(s) implements a dynamic mathematical offset, to a portion of mathematical functions underlying the encryption parameters. The processor(s) generates an encrypted chunk for each encrypted block of the plurality of encrypted blocks, wherein the encrypted chunk for each encrypted block contains a portion of the shuffle-transform encrypted text.

Abstract: In an example, an active authentication session may b transferred from a first device to a second device. An authentication server may store a new authentication session token for the second device in session storage. The new authentication session token may be derived from an active authentication session token that was received from the first device. The authentication server may also receive an identification value from the first device, which was obtained from the second device, in response to verifying a query by the second device regarding an existence of a locator key based on the identification value in the session storage, the new authentication session token may be transmitted to the second device.