Abstract:
In certain aspects, an apparatus comprises an interface configured to output a first signal for transmission via at least one first antenna, to output a second signal for transmission via at least one second antenna, to receive the transmitted first signal via the at least one second antenna, and to receive the transmitted second signal via the at least one first antenna. The apparatus also comprises a processing system configured to measure a phase of the received first signal and a phase of the received second signal, to determine a phase correction for the at least one first antenna based on the measured phase of the received first signal and the measured phase of the received second signal, and to shift a phase of a transmit signal by the phase correction, wherein the interface is configured to output the transmit signal for transmission via the at least one first antenna.
Abstract:
Described are apparatuses and methods for reducing channel physical layer (C-PHY) switching jitter. An apparatus may include a pattern dependent delay circuit to detect a switching pattern of at least three data signals on respective wires and adaptively change delays of the at least three data signals based on the switching pattern. The apparatus may further include a transmitter, coupled to the pattern dependent delay circuit, to transmit the at least three data signals.
Abstract:
In a multi-wire channel that includes at least three wires, each unique wire pair of the multi-wire channel has approximately the same signal propagation time. In this way, jitter can be mitigated in the multi-wire channel for signaling where, for a given data transfer, a differential signal is transmitting on a particular pair of the wires and every other wire is floating. In some implementations, matching of the signal propagation times involves providing additional delay for at least one of the wires. The additional delay is provided using passive signal delay techniques and/or active signal delay techniques.
Abstract:
본 발명의 일 실시 예에 따르는 통신 시스템에서 단말의 시간 분할 듀플렉스(Time Division Duplex, TDD) 설정 방법은 기지국으로부터 제1 TDD 설정을 수신하는 단계; 상기 기지국으로부터 동적 TDD 설정관련 정보를 포함하는 메시지를 수신하는 단계; 상기 수신한 동적 TDD 설정관련 정보에 따라 제2 TDD 설정을 수신하는 단계; 상기 기지국으로부터 역방향 그랜트(Uplink grant)를 수신하는 단계; 및 상기 역방향 그랜트가 수신된 방법을 기반으로 상기 제1 TDD 설정 또는 상기 제2 TDD 설정을 적용하는 것을 결정하는 단계를 포함한다. 본 발명의 일 실시 예에 따르면 무선 통신 시스템에서 TDD를 지원하는 단말에TDD 설정시 보다 짧은 주기로 설정하는 것이 가능하며 통신 상황에 따라 가변적으로 보다 신속히 단말에 TDD를 설정하는 것이 가능한 효과가 있다.
Abstract:
Systems and methods for FEC encoding, for example for 10GEPON are provided. For the upstream or downstream, multiple FEC encoding and decoding profiles are implemented that include various levels of FEC encoding. Then, for a given ONU, a selection between these FEC encoding profiles is made. The OLT can instruct the ONU which FEC encoding profile to use for upstream, and which FEC decoding profile to use for downstream.
Abstract:
A method comprising transmitting a delay value to each of a plurality of digital subscriber line (DSL) transceivers, by a distribution point unit (DPU), and receiving a plurality of signals at substantially the same time, wherein each of the plurality of signals is from a different DSL transceiver in the plurality of DSL transceivers and transmitted at different times based on the delay value and a corresponding propagation delay.