Patent application number | Description | Published |
20110258669 | SYSTEM AND METHOD FOR MULTI-CARRIER MULTIPLEXING - A transmitter is provided for use with a first input signal and a second input signal. The transmitter includes a first modulating portion, a second modulating portion and a multiplexing portion. The first modulating portion can output a first plurality of code blocks based on the first input signal, wherein each of the first plurality of code blocks has a first sequence number associated therewith and is modulated with a first modulation scheme. The second modulating portion can output a second plurality of code blocks based on the second input signal, wherein each of the second plurality of code blocks has a second sequence number associated therewith and is modulated with a second modulation scheme, and wherein the second modulation scheme is different than the first modulation scheme. The multiplexing portion can a third plurality of code blocks based on the first plurality of code blocks, the second plurality of code blocks and planning code block. The planning code block associates each of the third plurality of code blocks with a respective one of the first plurality of code blocks and the second plurality of code blocks. | 10-20-2011 |
20120121023 | SYSTEM AND METHOD FOR MULTI-CARRIER MULTIPLEXING - A system for a multiplexing scheme for wideband signals in a communications system is provided. A codeblock of a multiplexed datastream is decoded. The codeblock includes a flag indicating whether the codeblock contains a timeplan, signifying a multiplexing structure of the datastream. A determination is made whether the flag indicates the presence of the timplena, and, if so, the timeplan is acquired. In response to a determination that the codeblock does not contain the timeplan, a subsequent codeblock is determined, and decoded. Each codeblock includes a an indicator of a sequence position of the codeblock within a group of codeblocks of the datastream. The subsequent codeblock is determined based on one or more of a decode rate of the processor device and the sequence position indicator. A determination is made whether the flag of the first subsequent codeblock indicates the presence of the timeplan, and, if so, the timeplan is acquired. | 05-17-2012 |
20120198502 | METHOD AND APPARATUS FOR DATA RATE CONTROLLER FOR A CODE BLOCK MULTIPLEXING SCHEME - A receiver is used with third code blocks based on first code blocks, second code blocks, and a planning code block. The first code blocks are associated with a first sequence number and modulated with a first modulation scheme. The second code blocks are associated with a second sequence number and modulated with a second modulation scheme. The planning code block associates the third code blocks with the first code blocks and the second code blocks. The receiver includes a de-multiplexing portion, which includes a code block selector and a look up table, that outputs a de-multiplexed signal based on the third code blocks. The code block selector selects a code block from the third code blocks to output as the de-multiplexed signal based on entries in the look up table. The receiver also includes a recovery portion that outputs received code blocks based on the de-multiplexed signal. | 08-02-2012 |
20130315136 | FRAME TIMING SYNCRHONIZATION IN A GEOSTATIONARY SATELLITE SYSTEM - Aspects of the invention provide a system and method to allow inroute frame timing synchronization without the aid of hub signal loopback or satellite ephemeris data. Furthermore, it allows tracking and compensating of the satellite motion to allow multiple remotes to use TDMA on the inroute frequencies, while minimizing the aperture. Two main techniques proposed are CLT and polling based approaches, which are used in combination for an optimum solution. In CLT based approach, hub transmits remote specific timing correction feedback messages on the outroute on as needed basis. In polling based approach, the remotes derive their timing based on a per-beam average delay estimate broadcast by the hub and a measured local delay specific to each outroute stream from a remote. An aspect of the invention uses triangulation method to determine satellite position. Furthermore, an aspect of the invention uses hub burst arrival method instead of polling approach. | 11-28-2013 |
20140115429 | METHOD AND APPARATUS FOR CONVOLUTIONAL CODING TO SUPPORT MULTIPLEXING IN A WIDEBAND COMMUNICATIONS SYSTEM - An approach for encoding a physical layer (PL) header of a PL data frame is provided. The PL header comprises sixteen information bits u | 04-24-2014 |
20140254474 | FRAME TIMING SYNCHRONIZATION IN A GEOSTATIONARY SATELLITE SYSTEM - Aspects of the invention provide a system and method to allow inroute frame timing synchronization without the aid of hub signal loopback or satellite ephemeris data. Furthermore, it allows tracking and compensating of the satellite motion to allow multiple remotes to use TDMA on the inroute frequencies, while minimizing the aperture. Two main techniques proposed are CLT and polling based approaches, which are used in combination for an optimum solution. In CLT based approach, hub transmits remote specific timing correction feedback messages on the outroute on as needed basis. In polling based approach, the remotes derive their timing based on a per-beam average delay estimate broadcast by the hub and a measured local delay specific to each outroute stream from a remote. An aspect of the invention uses triangulation method to determine satellite position. Furthermore, an aspect of the invention uses hub burst arrival method instead of polling approach. | 09-11-2014 |
20140337896 | METHOD AND APPARATUS FOR DATA RATE CONTROLLER FOR A CODE BLOCK MULTIPLEXING SCHEME - A receiver is used with third code blocks based on first code blocks, second code blocks, and a planning code block. The first code blocks are associated with a first sequence number and modulated with a first modulation scheme. The second code blocks are associated with a second sequence number and modulated with a second modulation scheme. The planning code block associates the third code blocks with the first code blocks and the second code blocks. The receiver includes a de-multiplexing portion, which includes a code block selector and a look up table, that outputs a de-multiplexed signal based on the third code blocks. The code block selector selects a code block from the third code blocks to output as the de-multiplexed signal based on entries in the look up table. The receiver also includes a recovery portion that outputs received code blocks based on the de-multiplexed signal. | 11-13-2014 |