Hewlett Packard Enterprise Development LP

Jiguang Zheng

Bo Wang

Yuying Chen

Jianpo Han

Kuanyue Li

Implementations of the present disclosure relate to a system for transmitting time-sensitive signals between an access point (AP) and a universal serial bus (USB) dongle device inserted into the AP. The AP is configured to generate a time-sensitive signal and comprises a modulator configured to obtain the TSS and two power voltages and modulate the TSS with the two power voltages to generate a modulated TSS. The USB dongle device operates at the same frequency as the AP and comprises a demodulator for demodulating the modulated TSS to obtain the demodulated TSS, wherein the modulated TSS is transmitted via a power supply pin at the USB interface of the AP and a power reception pin of the USB dongle device. In this manner, the delay of the demodulated TSS relative to the original TSS can be low, fixed, and measurable.

Transmission of time sensitive signal

In embodiments of the present disclosure, a method is provided for managing an AP position for an access point. In the method, a magnetic distribution map is obtained for an indoor area, the magnetic distribution map representing a plurality of reference magnetic values that are collected at a plurality of reference positions in the indoor area. A plurality of magnetic measurements are received, here the plurality of magnetic measurements are respectively collected at a plurality of access point (AP) positions at which a plurality of APs are deployed within the indoor area, and the plurality of AP positions are unknown. The plurality of AP positions are mapped to a portion of the plurality of reference positions based on the plurality of magnetic measurements and the plurality of reference magnetic values. The plurality of AP positions are determined based on the portion of the plurality of reference positions. Therefore, AP positions may be determined accurately and effectively in an indoor environment.

Indoor access point position management

Implementations of the present disclosure relate to positioning and synchronization of network device. A positioning and synchronization apparatus comprises an antenna. The apparatus also comprises a small form factor pluggable (SFP) connector comprising a first pin connected to a first pin of a SFP fiber port of a network device and a second pin connected to a second pin of the SFP fiber port. The apparatus also comprises a Global Navigation Satellite System (GNSS) receiver. The GNSS receiver is configured to receive signals comprising positioning-related information over the antenna and to provide a positioning signal over the first pin of the SFP connector and a pulse per second (PPS) signal over the second pin of the SFP connector.

Positioning and synchronization

Examples relate to communicating synchronization information from a satellite to a power supply device to enable time synchronization between the satellite and the power supply device. The power supply device includes a port to receive, from a modulator, a modulated current corresponding to a power consumption across a dummy load, where a level pattern of the modulated current indicates the synchronization information received from the satellite. The power supply device includes a power consumption analyzer configured to receive a modulated voltage, across a shunt resistor, corresponding to the modulated current and recover, from the modulated voltage, the synchronization information.

Synchronization of power supply devices

Embodiments of the present disclosure relate to a power supply device, an electronic system and a method. The electronic system comprises an electronic device and the power supply device transmitting synchronization information from a satellite to the electronic system. The power supply device comprises a first modulator configured to receive a signal from a satellite and to generate a first modulated supply voltage, a level pattern of the first modulated supply voltage indicating synchronization information included in the satellite signal; and a first transformer configured to provide the first modulated supply voltage to an electronic device to enable a synchronization between the satellite and the electronic device based on the synchronization information. The electronic device demodulates the first modulated supply voltage to determine the synchronization information for synchronizing with the satellite. By using the embodiments of the disclosure, cost for manufacturing the electronic devices can be significantly reduced.

Growing community of inventors

Beijing, China

Jiguang Zheng