Institute for Information Industry

Yi-Chih Tung

Chih-Hsiang Ho

Wen-Jyi Hwang

Pang-Fu Liu

Hao-Gen Wong

Shu-Min Chuang

Li-Sheng Chen

Ding-Jie Huang

Muh Wu

A frequency calibration apparatus and method are provided. An oscillator of the frequency calibration apparatus has an operation frequency. The frequency calibration apparatus receives a plurality of time packets from an NTP server at a plurality of first time points. Each of the time packets records a second time point that the NTP server transmits the time packet. The frequency calibration apparatus calculates an offset for each of the time packets in a subset of all the time packets, calculates a clock skew according to the first time points and the offsets of the time packets in the subset, calculates a difference between the clock skew and a standard frequency value, determines that an absolute value of the difference is greater than a threshold, and adjusts the operation frequency to an initial frequency after determining that the absolute value of the difference is greater than the threshold.

Frequency calibration apparatus and method

A rendezvous flow control apparatus, method, and non-transitory tangible computer readable medium thereof are provided. The rendezvous flow control apparatus includes a plurality of transceiving interfaces and a processing unit. Each of the transceiving interfaces is individually assigned with a first allocated bandwidth. The transceiving interfaces transmit a first data flow of a network service to a network apparatus by the first allocated bandwidths at a first stage. The transceiving interfaces receive a piece of feedback information from the network apparatus. The processing unit assigns a second allocated bandwidth to each of the transceiving interfaces according to the piece of feedback information. The transceiving interfaces transmit a second data flow of the network service to the network apparatus by the second allocated bandwidths at a second stage.

Rendezvous flow control apparatus, method, and non-transitory tangible computer readable medium

A heterogeneous network system, network apparatus, and rendezvous path selection method thereof are provided. The heterogeneous network system includes partner network apparatuses and a network apparatus. The transceiving interfaces of the network apparatus and the partner network apparatuses are not all the same. The network apparatus measures at least one first transmission parameter and receives a plurality of second transmission parameters. Each of the at least one first transmission parameter is associated with transmission from the network apparatus to one of its neighboring network apparatuses. Each of the second transmission parameters is associated with transmission between two network apparatuses neighboring each other. The network apparatus enumerates a plurality of paths from itself to a target network apparatus and calculates a path cost for each of the paths according to at least a portion of a combination of the at least one first transmission parameter and the second transmission parameters.

Heterogeneous network system, network apparatus, and rendezvous path selection method thereof

A coverage hole detection apparatus and method are provided. The coverage hole detection apparatus decides two boundary locations of a coverage hole according to (a) a time length from a time point when a user equipment (UE) has detected a disconnection from a first base station to a time point when the UE determines that a Radio Link Failure (RLF) has happened, (b) a time length from a time point when the UE receives an RLF report request from a second base station to a time point when the UE transmits an RLF report response to the second base station, (c) a location that the UE determines that the RLF has happened, and (d) a location where the UE transmits the RLF report response. The coverage hole detection apparatus decides the coverage hole according to the two boundary locations and a sensitivity range of the UE.

Growing community of inventors

Taipei, Taiwan

Yi-Chih Tung