Methods and apparatuses are disclosed herein for ascertaining reliability aspects for Device-to-Device (D2D) links prior to actual data transmission. In some embodiments, a method performed by a second Wireless Communication Device (WCD) comprises attempting to receive synthetic packet transmissions, each comprising R replicas of a respective synthetic packet, from a first WCD over a direct or indirect D2D link using a current resource allocation. The method further comprises determining that the D2D link violates a requirement based on results of the attempting to receive the synthetic packet transmissions and sending a violation notification to a Centralized Scheduler (CS). Corresponding embodiments of a second WCD are also disclosed. Embodiments of a method of operation of a first WCD and corresponding embodiments of the first WCD as well as embodiments of a method of operation of a CS and corresponding embodiments of the CS are also described herein.

Provided is a setting device and the like with which correct estimation of a communication band is possible. The setting device 101 has a transmission unit 102 that, on the basis of a first timing at which a first information processing device 401 transmits to a second information processing device 402 a first signal for measuring a communication band which pertains to a communication network 403, transmits to the second information processing device 402 a setting signal for setting a communication unit 407 of the second information processing device 402 to a communication-enabled state.

One embodiment according to the present specification relates to a method for performing low latency communication. A transmitting STA can transmit a low latency communication notification frame including information related to a section for low latency communication. The transmitting STA and a receiving STA can perform low latency communication in the section for low latency communication on the basis of the low latency communication notification frame. Afterward, the transmitting STA can transmit a low latency communication termination frame. The transmitting STA and the receiving STA can terminate the section for low latency communication on the basis of the low latency communication termination frame.

A jitter determination method for determining at least one jitter component of an input signal is described. The input signal is generated by a signal source. The jitter determination method includes: receiving the input signal; determining a step response based on the input signal, the step response being associated with at least the signal source; and determining at least one variation parameter associated with the determined step response, wherein the at least one variation parameter is indicative of a reliability of the determined step response. Further, a measurement instrument is described.

Physical layer devices and related methods for determining Bit Error Rates (BERs) and correcting errors in signals received through shared transmission media of wireless local area networks are disclosed. A physical layer device is configured to identify coding violations in received signal, determine a rate of the coding violations in the signal, and estimate a BER of the signal to be equal to the determined rate of the coding violations. A physical layer device is configured to invert a half symbol immediately preceding or immediately following a coding violation based, at least in part, on signal integrities of the half symbol immediately preceding and the half symbol immediately following the coding violation to correct a bit error.

A signal receiving device includes a sampling device configured to sample an input signal to output a plurality of sampling values, and an output circuit configured to output data based on the sampling values. The output circuit outputs the data by performing majority voting based on first to third sampling values of the sampling values in response to a first control signal, and outputs the data and first and second error count signals based on the first sampling value and fourth and fifth sampling values of the sampling values in response to a second control signal. The first error count signal is generated by comparing the first sampling value sampled under a reference condition with the fourth sampling value sampled under a first offset condition, and the second error count signal is generated by comparing the first sampling value with the fifth sampling value sampled under a second offset condition.

A method for recovering data included in a digitally modulated signal is described. The digitally modulated signal includes a symbol sequence. The method includes providing a mathematical model of the digitally modulated signal, the mathematical model describing the digitally modulated signal in terms of the symbol sequence and describing the digitally modulated signal in terms of a step response and/or an impulse response, and wherein the mathematical model also takes disturbances into account; and processing the digitally modulated signal based on the mathematical model, thereby recovering the data included in the digitally modulated signal. The disturbances include a random disturbance component modelled as a Gaussian disturbance, and include an inter-symbol interference component modelled as Gaussian noise, and wherein a dependence of the at least one step response on the symbol sequence is neglected within the mathematical model. Further, a measurement instrument and a measurement system are described.

A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.

Methods and systems are described for measuring a vertical opening of a signal eye of a pulse amplitude modulated (PAM) signal received over a channel to determine a vertically-centered voltage decision threshold of a sampler receiving a sampling clock, determining channel-characteristic parameters indicative of a frequency response of the channel, determining a correctional vernier value from the channel-characteristic parameters, and generating a horizontally-centered voltage decision threshold that introduces a horizontal sampling offset in the sampling clock in a direction closer to a horizontal center of the signal eye by combining the vertically-centered voltage decision threshold and the correctional vernier value.

A terminal apparatus (20) includes: a measurement unit (203) configured to measure at least one of a latency when a wireless signal is transmitted to a base station and a jitter of the wireless signal; a data processing unit (201) configured to generate information including a result of the measurement; and a wireless communication processing unit (202) configured to transmit the information to the base station.