Abstract:
There is provided a method of retransmission for a base station in a wireless communication system supporting beamforming. The method includes transmitting data at least once using a first beam; detecting a link disconnection within a retransmission request interval at the media access control (MAC) layer; determining, when a link disconnection is detected, a second beam; and retransmitting the data using the second beam.
Abstract:
A physical layer low power communication method and apparatus are provided. The physical layer low power communication method may include receiving a data packet from a transmitter, measuring a channel quality using a preamble and signal field information included in the data packet and determining whether recovery of the data packet is possible, calculating an error generation rate according to a determination result, and discarding the data packet and operating in a power save mode when the error generation rate is higher than a predetermined reference.
Abstract:
Methods and apparatus for processing data received at a user equipment comprises determining a protocol data unit (PDU)-specific Layer 1 decoding metric of a Layer 1 decoded PDU. The methods and apparatus further comprises determining whether to perform a Layer 2 decoding of the Layer 1 decoded PDU based on the PDU-specific Layer 1 decoding metric.
Abstract:
A physiologic transmitter manages multiple communications between physiologic data acquisition devices attached to the patient and a receiver attached to an MRI or CT scanner. The transmitter's processor is able to generate waveform data and trigger data based upon the acquired physiologic data and transmit the data to a physiologic receiver attached to the host scanner. The receiver then is able to deliver a trigger signal to the host scanner for imaging the patient during a selected time frame based upon cardiac and/or respiratory cycles of the patient.
Abstract:
This disclosure describes techniques for operating a client device to communicate with a wireless access point to validate data within a frame by comparing channel quality metrics and duration metrics to thresholds. Information received within a validity window may be treated as correctly received even if the frame fails a subsequent verification process or if reception of the frame is terminated prior to the end of the frame.
Abstract:
Embodiments of an Evolved Node-B (eNB) and methods for HARQ transmission are disclosed herein. The eNB may transmit, to a reduced-latency User Equipment (UE), an initial HARQ block and a diversity HARQ block for a reduced-latency data block. A sub-frame spacing between the transmissions of the HARQ blocks may be less than a sub-frame spacing used for transmissions of HARQ blocks to UEs not operating as reduced-latency UEs. The HARQ blocks for the reduced-latency data block may be transmitted in a reduced-latency region of time and frequency resources reserved for HARQ processes with reduced-latency UEs. In addition, HARQ blocks may be transmitted in time and frequency resources exclusive of the reduced-latency region to other UEs not operating as reduced-latency UEs.
Abstract:
A multimedia transceiver apparatus continuously generates a model of a video scene, and then uses the generated model to estimate missing sections (e.g., image frames) of the video stream by morphing and/or modifying available uncorrupted video data based on the model. By estimating the missing sections, the subjective quality of video under error conditions (e.g., image frame loss, image frame corruption, video signal interruption, etc.) is improved.
Abstract:
A method and an apparatus for selectively performing packet error classification of multiple packet streams multiplexed to the same are provided. According to the method, generating an MMT packet can include: encapsulating an AU provided from a media codec layer to generate an MPU; and packetizing the generated MPU to generate the MMT packet. The MMT packet can include a packet header including a substream sequence number. Multiple substreams can be multiplexed and transmitted to a single port, and it is possible to detect, if a packet loss occurs, to which substream the lost packet belongs. Furthermore, based on this, an automatic repeat request (ARQ) can be made differently for each subframe and an error control policy can be taken differently for each subframe.
Abstract:
Systems and methods for detecting defect propagation in a networked environment comprising a defect detection component to detect defects in an aggregate signal and/or in individual signals; and a replacement signal component to generate a maintenance signal to replace defective signals detected by the defect detection component. The maintenance signal can be a uniform signal type regardless of a type associated with a defective signal. The maintenance signal can replace a defective signal during aggregation, by an aggregation component. In another aspect, the maintenance signal can replace the defective signal during de-aggregation
Abstract:
In described embodiments, data pattern-based detection of loss of signal (LOS) is employed for a receive path of serializer/deserializer (SerDes) devices. Pattern-based LOS detection allows for detection of data loss over variety of types of connection media, and is generally insensitive to signal attenuation. More specifically, some described embodiments disclose reliable pattern-based detection of LOS across different connection media for incoming receive data when discreet time decision feedback equalization (DFE) is employed.