Abstract: A message transmission method for a roadside equipment includes the following steps. A plurality of external sensor information is received. A road intersection sign phase information and a road map information are inputted. An object position analysis, a speed analysis, and an sign analysis in object moving direction are performed based on the external sensor information, the road intersection sign phase information, and the road map information, and a classification of dangerous objects in different groups is outputted. According to a current transmission bandwidth limitation and the classification of the dangerous objects, a dangerous object message with a higher classification of the dangerous objects is preferentially selected and transmitted within available transmission bandwidth.

Abstract: An object tracking system including a plurality of electronic devices and a server platform is provided. The server platform generates a tracking message based on received event message, and sends the tracking message to at least one of the electronic devices located within a first predetermined range corresponding to the received event message. When one of the electronic devices detects a vehicle matched with one or more vehicle features of the event message according to the received tracking message, the one of the electronic devices generates and sends a notification message to the server platform.

Abstract: An object tracking system including a plurality of electronic devices and a server platform is provided. The server platform generates a tracking message based on received event message, and sends the tracking message to at least one of the electronic devices located within a first predetermined range corresponding to the received event message. When one of the electronic devices detects a vehicle matched with one or more vehicle features of the event message according to the received tracking message, the one of the electronic devices generates and sends a notification message to the server platform.

Abstract: Examples pertaining to prevention of crosstalk during single-ended line testing are described. In a far-end crosstalk (FEXT) cancelled single-point-to-multi-point time-division duplexing (TDD) orthogonal frequency-division multiplexing (OFDM) communication system, a first communication device may signal a plurality of second communication devices that there is a quiet period where one port of multiple ports of the first communication device will transmit zero energy on a plurality of communications channels between the first communication device and the second communication devices. The first communication device may transmit a stimulus on a selected port during the quiet period. The first communication device may derive loop parameters from an echo response of the stimulus.

Abstract: Various examples of mechanisms, systems, methods, techniques and devices for dynamic rate adaptation in a vectored G.fast (G.9701) system are described. A first communication device may perform estimation of a residual noise to derive signal-to-noise ratio (SNR) loss for each carrier of one or more carriers with respect to a transmitting port of the first communication device. The residual noise may be an increased noise expected to be experienced by a second communication device when one or more other ports in a vectored group of a plurality of ports of the first communication device are switched off. The first communication device may adapt to the residual noise during time slots of one or more downstream symbol positions where the one or more other ports in the vectored group are switched off by dynamically changing bit-loading.

Abstract: The present disclosure provides an event reconstruction system including a communication unit, a key information integration device, a storage unit and a computation unit. The key information integration device receives key information from a plurality of image capturing device through the communication unit. The key information includes a first identification code and a second identification code retrieved from a first image capturing device and a second image capturing device respectively. The storage unit stores the key information. The computation unit extracts the key information and confirms the second image capturing device transmitting the second identification code according to the first identification code and the second identification code in the key information.

Abstract: Various embodiments of a mechanism of dynamic allocation of bandplan are provided. In one aspect, a communication device utilizes a bandplan during initialization in a digital communication system. The communication device modifies the bandplan after one or more channel estimations to optimize data rates of communications in a downstream direction and an upstream direction.

Abstract: A protecting cover detachably disposed at an electronic device is provided. The electronic device has an arc side and a first magnetic element disposed in the arc side. The protecting cover includes a covering part and a pivot part. The pivot part is connected to the covering part, and the pivot part includes an arc area and a second magnetic element disposed in the arc area. The outer line of the arc area corresponds to the arc side, and the first magnetic element is magnetically attracted with the second magnetic element to make the pivot part detachably connected to the arc side. The protecting cover uses the second magnetic element in the pivot part to attract the electronic device with the first magnetic element in the arc side, and thus the protecting cover can be fixed at the electronic device.

Abstract: In the present disclosure, several techniques are proposed to estimate the worst-case crosstalk noise and use it for bit-loading and SRA calculations so that fluctuating crosstalk when PET mode is enabled does not lead to system instability. One of the proposed techniques involves strategically placing some marker tones in the transmitters of the affecting lines. The noise floor may be inferred by interpolating the noise observed on these marker tones (tones that are always-on) and applying to the entire frequency band on the victim line. Another proposed technique involves periodically transmitting a set of marker symbols (fully loaded OFDM symbols), so that a victim channel can estimate the SNRs in a worst case crosstalk scenario.

Abstract: The present disclosure outlines mechanisms, systems, methods, techniques and devices that reposition a RMC symbol in a TDD frame. In one aspect, a method queues data transmission units (DTUs) for transmission in a TDD OFDM communication system, with each of the DTUs occupying a single symbol partially or fully, or multiple symbols, of a series of symbols in a TDD frame. The method also forms a management symbol for transmission in a kth symbol position of the series of symbol positions, k>1. The method further transmits the symbols sequentially in the TDD frame.

Abstract: The present disclosure outlines mechanisms, systems, methods, techniques and devices that reposition a RMC symbol in a TDD frame. In one aspect, a method queues data transmission units (DTUs) for transmission in a TDD OFDM communication system, with each of the DTUs occupying a single symbol partially or fully, or multiple symbols, of a series of symbols in a TDD frame. The method also forms a management symbol for transmission in a kth symbol position of the series of symbol positions, k>1. The method further transmits the symbols sequentially in the TDD frame.

Abstract: Various embodiments of a power saving scheme in data communication are provided. In one aspect, a method transmits a plurality of symbols each of which containing an overhead portion and at least a portion of a respective data transmission unit (DTU). In particular, the method transmits the overhead portion of a first symbol of the plurality of symbols and the at least a portion of a respective DTU of the first symbol when the at least a portion of the respective DTU of the first symbol contains payload data. The method transmits the overhead portion of a second symbol of the plurality of symbols without transmitting the at least a portion of a respective DTU of the second symbol when the at least a portion of the respective DTU of the second symbol contains no payload data.

Abstract: The present disclosure provides mechanisms, systems, methods, techniques and devices for dynamic rate adaptation in a vectored G.fast system. More specifically, a flexible framework that incorporates with residual crosstalk noise is provided.

Abstract: Various embodiments of a mechanism of dynamic allocation of bandplan are provided. In one aspect, a communication device utilizes a bandplan during initialization in a digital communication system. The communication device modifies the bandplan after one or more channel estimations to optimize data rates of communications in a downstream direction and an upstream direction.

Abstract: A foldable supporting bracket for a portable electronic apparatus includes a supporting arm, a holding element, and two load-bearing bars. The supporting arm has a first pivot shaft at one terminal thereof and the holding element has a second pivot shaft at one terminal thereof. The two load-bearing bars are separated to each other and pivotally arranged between the first pivot shaft and the second pivot shaft to form a hollow containing region. The supporting arm and the holding element are pivotally connected to the two load-bearing bars via the first pivot shaft and the second pivot shat, respectively, so that the supporting arm and the holding element are flipped toward the hollow containing region. Accordingly, the supporting arm and the holding element are folded in the hollow containing region and then levelly arranged to the two load-bearing bars, thus reducing occupied space and increasing carry convenience.

Abstract: A method and module for estimating after-charge drivable range of an electric vehicle and a driving assistant device are provided. The method includes a power supplement location selecting step, a planned charging time determining step, an after-charge total power estimating step, and an after-charge drivable range estimating step. The planned charging time determining step calculates an estimated driving time for arriving at each power supplement location and an estimated charge waiting time, and determines a planned charging time at each power supplement location. The after-charge total power estimating step calculates an estimated power increment of the electric vehicle and an estimated after-charge total power. The after-charge drivable range estimating step calculates an estimated after-charge drivable range of the electric vehicle centering at each power supplement location according to the current driving information and each estimated after-charge total power.

Abstract: A protecting cover detachably disposed at an electronic device is provided. The electronic device has an arc side and a first magnetic element disposed in the arc side. The protecting cover includes a covering part and a pivot part. The pivot part is connected to the covering part, and the pivot part includes an arc area and a second magnetic element disposed in the arc area. The outer line of the arc area corresponds to the arc side, and the first magnetic element is magnetically attracted with the second magnetic element to make the pivot part detachably connected to the arc side. The protecting cover uses the second magnetic element in the pivot part to attract the electronic device with the first magnetic element in the arc side, and thus the protecting cover can be fixed at the electronic device.

Abstract: The present disclosure outlines mechanisms, systems, methods, techniques and devices that reposition a RMC symbol in a TDD frame. In one aspect, a method queues data transmission units (DTUs) for transmission in a TDD OFDM communication system, with each of the DTUs occupying a single symbol partially or fully, or multiple symbols, of a series of symbols in a TDD frame. The method also forms a management symbol for transmission in a kth symbol position of the series of symbol positions, k>1. The method further transmits the symbols sequentially in the TDD frame.

Abstract: Various embodiments of a power saving scheme in data communication are provided. In one aspect, a method transmits a plurality of symbols each of which containing an overhead portion and at least a portion of a respective data transmission unit (DTU). In particular, the method transmits the overhead portion of a first symbol of the plurality of symbols and the at least a portion of a respective DTU of the first symbol when the at least a portion of the respective DTU of the first symbol contains payload data. The method transmits the overhead portion of a second symbol of the plurality of symbols without transmitting the at least a portion of a respective DTU of the second symbol when the at least a portion of the respective DTU of the second symbol contains no payload data.