摘要:
Upstream burst noise measurement and characterization. One or more communication devices is implemented to detect and measure burst noise event(s) within channel(s) associated with communication link(s) within communication system(s) or network(s). Detection and measurement of a burst noise event may be made during active communications on one or more other channels, and may be made during active communications on two channels respectively adjacent to the channel on which the burst noise event is being detected and measured. The channel on which the burst noise event is detected and measured may be an unused channel. The detection and measurement of the burst noise event may be made during a quiet time slot within one of the channels. Correlation (e.g., with respect time) may be determined with respect to different respective layers within a communication device (e.g., with respect to MAC and PHY layers).
摘要:
Narrowband ingress estimation and characterization using equalizer taps. A equalizer including a feed forward equalizer (FFE) and a decision feedback equalizer (DFE) is implemented to process an input signal thereby generating an output signal. Analysis of the frequency response of the equalizer including the FFE and the DFE of the equalizer allows for the determination of whether or not narrowband ingress exists within the signal received by the equalizer. For example, analysis of the signal output from the equalizer provides for determination of the overall frequency response of the equalizer. In addition, analysis of the respective equalizer coefficients within one or both of the FFE and the DFE of the equalizer may be used to determine the overall frequency response of the equalizer. Narrowband ingress may be identified when the combination of the FFE (having a notch therein) and the DFE provides for an overall flat frequency response.
摘要:
A Femtocell gateway is operable to determine resource usage information among associated Femtocells in a Femtocell network. The Femtocell gateway may be enabled to allocate resources for distributing traffic among the associated Femtocells based on the determined resource usage information comprising IP usage information, radio access usage, and/or physical layer capabilities among the Femtocells. The Femtocell gateway may be enabled to identify Femtocells with excess resources assigned and Femtocells with a need for additional resources to support a particular traffic based on the determined resource usage information. The Femtocell gateway is operable to allocate and/or reallocate at least a portion of excess resources to the Femtocells with the need for the additional resource to support the particular traffic. The Femtocells that share resources with other Femtocells in the Femtocell network is rewarded with credits. The particular traffic is redirected to the Femtocells with excess resources and distributed to destinations.
摘要:
Aspects of a method and system for timely delivery of multimedia content via a femtocell are provided. In this regard, a femtocell may receive data via an upstream path and transmit data via a downstream path. One of the upstream path and downstream path may comprise a cellular path and the other may comprise a non-cellular path. One or both of the upstream path and the downstream path may be audio video bridging (AVB) paths. Data may be stored in the femtocell based on timing characteristics of one or both of the upstream path and the downstream path. Data may be delivered to the femtocell utilizing best effort delivery and the data may be forwarded by the femtocell with guaranteed quality of service. Resources in the femtocell may be reserved and/or synchronized, utilizing AVB protocols, for communication of one or more data streams.
摘要:
Aspects of a method and system for data processing in a device with integrated set-top-box and femtocell functionality are provided. Data may be received via an integrated femtocell and set-top-box device and may be synchronously processed, utilizing a common clock, to perform one or more femtocell functions and/or set-top-box functions. The common clock may be derived from global navigation satellite system signals. The integrated femtocell and set-top-box device may convert the received data from a first to a second format. The converted data may be transmitted to a cellular enabled communication device via a cellular transmitter within said integrated femtocell and set-top-box device and/or to a multimedia device via a multimedia interface within said integrated femtocell and set-top-box device. The received data may comprise multimedia content. The integrated femtocell and set-top-box device may be operable to encode, decode, transcode, encrypt, decrypt, scramble, descramble, and present the received multimedia content.
摘要:
Aspects of a method and system for controlling data distribution via cellular communications with an integrated femtocell and set-top-box (IFSTB) device are provided. In this regard, a cellular enabled communication device may detect when it is within cellular communication range of a femtocell. Upon detection of the femtocell, the cellular enabled communication device may communicate instructions to a content source instructing the content source to deliver multimedia content to the femtocell. In instances that multimedia content is already being delivered to the cellular enabled communication device prior to the detection, the instructions from the cellular enabled communication device may instruct the content source to redirect the multimedia content to the femtocell. In this regard, the multimedia content may be delivered from the content source to the cellular enabled communication device via the femtocell. The femtocell may deliver at least a portion of the multimedia content to other communication devices.
摘要:
In a DOCSIS-based communications system, different upstream channel descriptors (UCDs) all identify a single logical upsteam channel identifier (UCID) regardless of the type of cable modem (CM) to which the UCDs are sent. Different CMs having different capabilities (e.g., CMs configured according to the different DOCSIS standards 1.x, 2.0, and 3.0) receive their respective UCDs from an upstream headend. All the UCDs, however, refer to the same logical upstream channel. The different CMs therefore share this single logical upstream channel.
摘要:
Apparatus is provided for communicating data packets in variable length bursts over a physical layer in a multilayer data communication scheme. Each burst contains information data (40, 50, 60, 64, 74, 78, 82) and overhead (30, 32, 34, 36, 38, 42, 44, 62, 66, 76, 80, 84). The overhead includes forward error control (FEC) data (42, 62, 66, 76, 80, 84). Different burst modes (FIG. 2, 3, 4, 5) are provided to enable a trade-off to be made between bandwidth efficiency and data transmission robustness. The burst modes provide different combinations of modulation (such as QPSK and 16-QAM), symbol rates, FEC coding levels and frame and preamble structure. The apparatus is particularly suitable for use in upstream communications over hybrid fiber coax cable television plants.
摘要:
Aspects of a method and system for data processing in a device with integrated set-top-box and femtocell functionality are provided. Data may be received via an integrated femtocell and set-top-box device and may be synchronously processed, utilizing a common clock, to perform one or more femtocell functions and/or set-top-box functions. The common clock may be derived from global navigation satellite system signals. The integrated femtocell and set-top-box device may convert the received data from a first to a second format. The converted data may be transmitted to a cellular enabled communication device via a cellular transmitter within said integrated femtocell and set-top-box device and/or to a multimedia device via a multimedia interface within said integrated femtocell and set-top-box device. The received data may comprise multimedia content. The integrated femtocell and set-top-box device may be operable to encode, decode, transcode, encrypt, decrypt, scramble, descramble, and present the received multimedia content.
摘要:
A method for increasing upstream bandwidth per cable modem user in a cable communications system that includes a cable modem termination system (CMTS) and a plurality of cable modems is provided. The method permits a cable modem to transmit data to the CMTS on multiple upstream channels simultaneously using a technique called “channel bonding.” Channel bonding allows smaller bandwidth upstream channels to be bonded together to create a larger bandwidth pipe.