Abstract: A plurality of base station devices are linked together and synchronized to facilitate communication between the respective base station devices and respective downlink subscriber stations. According to one embodiment of the invention, one of the base station devices is designated as a master device, and the other base station devices are designated as slave devices. The respective base station devices are connected to each other by means of a synchronization bus. The master base station device then generates and broadcasts a future time stamp value, which is received by the respective slave base station devices. When the time stamp counter in the master base station device reaches the transmitted value, a control signal is broadcast over the synchronization bus. The slave base station devices then retrieve the time stamp value and reset their respective local time stamp counters to the received value. In this manner, the base station devices are synchronized.

Abstract: A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.

Abstract: A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.

Abstract: Embodiments herein provide systems and methods of transferring data in a communication system. An embodiment transfers data by assigning a portion of data among groups of channels coupled to a remote node, such assigning being based on the respective flows to which the portion is associated. The portion of data across is at least two channels in the assigned group of channels, and the split portions are transferred substantially simultaneously among the channels to which they are assigned.

Abstract: A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.

Abstract: A method and apparatus are provided for establishing communication between entities in a communication system. The time required to establish network connectivity for CPE devices can be reduced by prioritizing and/or reducing contention between the CPE devices. The CPE devices can be divided into acquisition groups and assigned specific upstream channels on which to range. The CPE devices can randomly or pseudo-randomly range on upstream channels.

Abstract: A communication system that includes a supervisory node (e.g., a headend) and one or more remote nodes (e.g., cable modems). Packets are transmitted between the supervisory node and the one or more remote nodes via RF channels. A plurality of the RF channels are bonded, such that packets may be transmitted via any one or more of the RF channels that are bonded. Bonding may include higher-layer bonding and/or lower-layer bonding. In higher-layer bonding, the communication system further includes a forwarder and a plurality of edge modulators. Each edge modulator is connected to a different RF channel or group of RF channels. The forwarder determines to which edge modulator one or more packets or flows are to be transmitted. In lower-layer bonding, a packet is split into pieces. The pieces are assigned to respective RF channels that are associated with an edge modulator for transmission to a remote node.

Abstract: A system, method and computer program product is provided for mitigating the effects of burst noise on packets transmitted in a communications system. A transmitting device applies an outer code, which may include, for example, a block code, an exclusive OR (XOR) code, or a repetition code, to one or more packets prior to adaptation of the packets for transmission over the physical (PHY) layer of the communications system, wherein the PHY layer adaptation may include FEC encoding of individual packets. The outer coded packets are then separately transmitted over a channel of the communications system. A receiving device receives the outer coded packets, performs PHY level demodulation and optional FEC decoding of the packets, and then applies outer code decoding to the outer coded packets in order to restore packets that were erased during transmission due to burst noise or other impairments on the channel.

Abstract: A system, method and computer program product is provided for mitigating the effects of burst noise on packets transmitted in a communications system. A transmitting device applies an outer code, which may include, for example, a block code, an exclusive OR (XOR) code, or a repetition code, to one or more packets prior to adaptation of the packets for transmission over the physical (PHY) layer of the communications system, wherein the PHY layer adaptation may include FEC encoding of individual packets. The outer coded packets are then separately transmitted over a channel of the communications system. A receiving device receives the outer coded packets, performs PHY level demodulation and optional FEC decoding of the packets, and then applies outer code decoding to the outer coded packets in order to restore packets that were erased during transmission due to burst noise or other impairments on the channel.

Abstract: Providing Quality of Service (QoS) information regarding video content delivery to a requesting wireless device. QoS/position information is first collected by, for each wireless device of a plurality of serviced wireless devices operating within a service area, receiving position information regarding a wireless device during delivery of video content and determining QoS provided during delivery of the video content, the QoS provided during delivery of the video content delivery varying over time and respective to the position information. The collected QoS/position information is then consolidated and a QoS map for the service area is produced based upon the consolidated collected QoS/position information. Finally, the QoS map for the service area is downloaded to the requesting wireless device. The QoS map may be tailored for the requesting wireless device based upon a current position/mobility of the requesting wireless device.

Abstract: A video processing system includes a communications interface and video processing circuitry. The communications interface receives video data from a video source, receives at least one operating parameter regarding a remote wireless device, and transmits an output video stream to the remote wireless device. The video processing circuitry couples to the communications interface, receives the video data and the at least one operating parameter, determines video processing parameters based upon the video data and the at least one operating parameter, processes the video data based upon the video processing parameters to produce the output video stream, and provides the output video stream to the communications interface for transmission to the remote wireless device. The video data (incoming video stream) may be processed by altering a frame rate, PCRs, pixel resolution, color resolution, color content, and/or region of interest content of the incoming video data to produce the output video stream.

Abstract: A video processing device receives a request to forward a video stream from a video source to a remote wireless device and, based upon characteristics of the video stream, determines data throughput requirement sufficient to transport the video stream. The video processing device establishes a wireless communication link with the remote wireless device via a servicing wireless network with wireless link parameters that support the data throughput requirement. The video processing device may be required to establish/alter the wireless communication link with the remote wireless device via differing wireless link parameters that support a differing data throughput that is less than the data throughput requirement and process the video stream to alter its characteristics to meet the differing data throughput. In either case, the video processing device transmits the video stream to the remote wireless device via at least the differing wireless communication link.

Abstract: Processing video data for delivery to a remote wireless includes receiving video data from a video source and receiving position and motion information regarding the remote wireless device. Operation also includes, based upon the position and motion information regarding the remote wireless device, determining an anticipated Quality of Service (QoS) available for servicing of transmissions to the remote wireless device and determining video processing parameters based upon the video data and the anticipated QoS. Operation further includes processing the video data based upon the video processing parameters to produce an output video stream and transmitting the output video stream for delivery to the remote wireless device. Operation may also/alternatively include altering wireless transmission parameters of a transport stream servicing delivery of the video data to alter the anticipated QoS.

Abstract: Processing a video stream using upon Program Clock References (PCRs) contained therein in preparation for transmission to a wireless device. Operation includes receiving video frames of the video stream, buffering the video frames, and extracting PCRs from at least some of the video frames of the video stream. Operation further includes, based upon at least the values of the PCRs, determining transmission parameters, and transmitting video frames of the video stream to the wireless device according to the transmission parameters. Operation may further include determining a round trip delay of transmissions to the wireless device and acknowledgements from the wireless device, adjusting PCRs of at least some video frames of the video stream based upon the round trip delay, and transmitting the video frames of the video stream to the wireless device.

Abstract: A video processing system and method of operation transports a video stream between a video source and a remote wireless device and includes a communication interface and processing circuitry. The processing circuitry couples to the communication interface, establishes a reception verified communication link with the remote wireless device via the communication interface, and establishes a non-reception verified communication link with the video source via the communication interface. The processing circuitry further receives the video stream (and an audio stream) from the video source via the communication interface using the non-reception verified communication link and transmits the video stream (and audio stream) to the remote wireless device via the communication interface using the reception verified communication link.

Abstract: Processing a video stream intended for a remote wireless device by a video processing system based upon identified area of interest information to produce an output video stream having lesser required data throughput. Operation commences with receiving the video stream and buffering the video stream. Then the video processing system identifies an area of interest corresponding to at least one video frame of the video stream. The video processing system the processes the video frames of the video stream based upon the identified area of interest to produce an output video stream. The video processing system then transmits the output video stream for delivery to the remote wireless device. Processing video frames of the video stream may include altering pixel resolution, color resolution, and/or cropping video information of the video frames outside of the area of interest.

Abstract: A video processing system includes a video decoder that decodes a first video signal based on at least one first conditional access code. A video control module maintains a key table that includes the at the at least one first conditional access code and at least one second conditional access code for use in conjunction with a second video signal.

Abstract: A mobile video device includes a transceiver module that receives navigation data corresponding to a plurality of video programs including at least one unicast video program and at least one multicast video program, that transmits selection data and that receives a video signal in response thereto. An interface module receives interface data in response to actions of a user. A video display device generates a selection display based on selection display data in a video selection mode and that generates a video display in a video display mode based on the video signal. A video application module generates the selection display data based on navigation data, that generates selection data based on user interface data.

Abstract: A video processing system includes a video encoder that encodes a video stream into a independent video layer stream and a first dependent video layer stream based on a motion vector data or grayscale and color data.

Abstract: A video transmission system includes a video server module that selectively operates in a unicast mode and a multicast mode, wherein the video server module generates a video signal that includes a unicast video signal when the video server module is in the unicast mode and that includes a multicast video signal when the video server module is in the multicast mode. A wireless access device transmits the video signal to at least one mobile video device.