A high capacity node includes a plurality of receiver sections and a plurality of transmitter sections; and an electrical switching fabric between the plurality of receiver sections and the plurality of transmitter sections, wherein each of the plurality of receiver sections and the plurality of transmitter sections interface the electrical switching fabric at a full signal level and the electrical switching fabric is configured to perform flow switching on the full signal level between respective receiver sections and transmitter sections, and wherein the plurality of receiver sections, the plurality of transmitter sections, and one or more stages of the electrical switching fabric are implemented in one or more optoelectronic integrated circuits.

A method and apparatus for multiplexing different numerologies in a wireless communication system is provided. A network node divides a scheduling unit into a plurality of basic time resource units in time domain, and multiplexes multiple numerologies by unit of a basic time resource unit. The basic time resource unit for the multiple numerologies may be aligned with each other at a basic time resource unit level or a subframe level.

An apparatus includes a radio frequency (RF) receiver having a multi-bit observation interval. The RF receiver includes a Coordinate Rotation Digital Computer (Cordic) circuit to receive a complex signal derived from RF signals and to generate a phase signal. The RF receiver further includes a timing correlator and frequency offset estimator coupled to receive data derived from a frequency signal derived from the phase signal. The RF receiver in addition includes a Viterbi decoder coupled to provide decoded data derived from the frequency signal.

Communication reception that enables reception of a packet which may not contain an error without invalidating the same is disclosed. In one example, an information analyzing unit analyzes a data string and frame/slot information, and supplies TMCC information, slot header information, and data length information to a packet length indicating unit and a packet dividing unit. The packet length indicating unit defines the packet length in advance, and indicates the defined packet length to the packet dividing unit. The packet dividing unit performs packet division on the basis of the packet length obtained from the TMCC information, the slot header information, the data length information and the like from the information analyzing unit, and the packet length defined by the packet length indicating unit.

A receiver includes first, second, and third signal processors and a controller. The first signal processor provides a first signal in response to detecting a first attribute of a received signal. The second signal processor provides a second signal in response to detecting a second attribute of the received signal. The third signal processor provides a third signal in response to detecting a third attribute of the received signal and provides packet data. The controller enables the first signal processor in response to a receive enable signal, controls the third signal processor to provide the packet data in response to receiving the first signal and the third signal, and initializes the first signal processor and the third signal processor in response to receiving the first signal and the second signal.

A high capacity node includes a plurality of receiver sections and a plurality of transmitter sections; and an electrical switching fabric between the plurality of receiver sections and the plurality of transmitter sections, wherein each of the plurality of receiver sections and the plurality of transmitter sections interface the electrical switching fabric at a full signal level and the electrical switching fabric is configured to perform flow switching on the full signal level between respective receiver sections and transmitter sections, and wherein the plurality of receiver sections, the plurality of transmitter sections, and one or more stages of the electrical switching fabric are implemented in one or more optoelectronic integrated circuits.

The present invention provides a data transmission method and apparatus in a time division duplex wireless data transmission system, and a system. The method includes: performing, by a transmission device in a timeslot corresponding to an idle frame, interference detection on a to-be-detected frequency band corresponding to the idle frame, obtaining an interference detection result, updating interference statistics, and switching, according to the interference statistics when interference to a current operating frequency band is greater than a preset threshold, the operating frequency band to a frequency band that meets a condition. Therefore, service interruption caused by interference detection is avoided.

A high capacity node includes a plurality of transceivers each with a transmitter configured to support a wavelength within a full transparent window of one or more optical fibers; and one or more optical amplifiers covering the full transparent window, wherein the one or more optical amplifiers comprise one of (i) a single ultra-wideband amplifier covering the full transparent window and (ii) a plurality of amplifiers each supporting a different band of the full transparent window.

A bandwidth allocation device is included in a communication system having a terminal station device and a terminal device and relaying upstream data, which is received from a communication terminal by a lower device connected to the terminal device, to an upper device connected to the terminal station device. The bandwidth allocation device includes a transmission-permitted period start position determining unit configured to estimate a start position of an arrival period in which the upstream data arrives at the terminal device from the lower device; a transmission-permitted period length determining unit configured to estimate a length of the arrival period based on an amount of upstream data to be transmitted from the lower device to the terminal device; and a bandwidth allocation unit configured to allocate a bandwidth to the terminal device based on the estimated start position and the estimated length of the arrival period.