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1. 发明申请

US20060184598A1 Optimized discrete fourier transform method and apparatus using prime factor algorithm 有权
公开(公告)号：US20060184598A1
公开(公告)日：2006-08-17
申请号：US11400566
申请日：2006-04-07
申请人： Ryan Buchert , Sharif Shahrier , Peter Becker
发明人： Ryan Buchert , Sharif Shahrier , Peter Becker
IPC分类号： G06F17/14
CPC分类号： G06F17/144
摘要： An apparatus and method for DFT processing using prime factor algorithm (PFA) on a selected number P of midamble chip values received by a CDMA receiver, where P has a plurality M of relatively prime factors F, and the DFT process is divided into M successive F-point DFT processes. The P data values are retrieved from a single input port memory and selectively permuted by a controller into parallel caches to optimize factoring with associated twiddle factors stored in parallel registers. The permuted inputs are factored in two or more parallel PFA circuits that comprise adders and multipliers arranged to accommodate any size F-point DFT. The outputs of the PFA circuits are processed by consolidation circuitry in preparation for output permutation of the values which are sent to memory for subsequent DFT cycles.

2. 发明申请

US20070025366A1 Method and system for a low-overhead mobility management protocol in the internet protocol layer 有权
标题翻译：互联网协议层的低开销移动性管理协议的方法和系统
公开(公告)号：US20070025366A1
公开(公告)日：2007-02-01
申请号：US11542842
申请日：2006-10-04
申请人： Sharif Shahrier , Prabhakar Chitrapu
发明人： Sharif Shahrier , Prabhakar Chitrapu
IPC分类号： H04L12/56
CPC分类号： H04W36/0083 , C07C43/313 , C07C69/63 , C07D307/79 , H04L29/06 , H04L29/12009 , H04L29/1233 , H04L29/12367 , H04L29/12424 , H04L29/12462 , H04L45/26 , H04L61/25 , H04L61/2514 , H04L61/2535 , H04L61/255 , H04W8/04 , H04W8/082 , H04W8/26 , H04W40/36 , H04W80/04 , H04W84/105 , H04W88/005
摘要： A system and method for supporting mobile Internet communication is provided which employs a plurality of Routers and a plurality of Mobile Nodes (MNs). Each Router has a unique communication address. Each MN is associated with a home Router. Each Router has an associated Mobile Node Location List identifying each MN for which the Router is the home Router and the communication address of a Router corresponding to a current location of each such MN. Each MN is movable from an old location where the MN communicates with the Internet via one Router to a current location where the MN communicates with the Internet via a different Router. Communication at the current location via the different Router is established by communicating to the MN's home Router the communication address of the different Router as the communication address corresponding to the MN's current location. Accordingly, a data communication from a corresponding node (CN) to a selected MN is communicated to the selected MN by accessing the Mobile Node Location List of the selected MN's home Router to determine the communication address corresponding to the selected MN's current location and directing the data communication to that determined communication address.
摘要翻译：提供一种用于支持移动因特网通信的系统和方法，其采用多个路由器和多个移动节点（MN）。每个路由器都有一个独特的通讯地址。每个MN与归属路由器相关联。每个路由器具有相关联的移动节点位置列表，其标识路由器是家庭路由器的每个MN，以及对应于每个这样的MN的当前位置的路由器的通信地址。每个MN可以从MN通过一个路由器与因特网通信的旧位置移动到MN通过不同路由器与因特网通信的当前位置。通过与MN的归属路由器通信，将不同路由器的通信地址作为与MN当前位置对应的通信地址进行通信，建立通过不同路由器在当前位置的通信。因此，通过访问所选MN的归属路由器的移动节点位置列表来确定与所选择的MN的当前位置相对应的通信地址，并将所指示的MN的当前位置的通信地址指向数据通信到确定的通信地址。

3. 发明申请

US20050273676A1 Third generation FDD modem interleaver 失效
标题翻译：第三代FDD调制解调器交织器
公开(公告)号：US20050273676A1
公开(公告)日：2005-12-08
申请号：US11141961
申请日：2005-06-01
申请人： Sharif Shahrier
发明人： Sharif Shahrier
IPC分类号： H03M13/27 , H04J13/00 , H04L1/00 , G06F11/00 , G01R31/28
CPC分类号： H04L1/0071 , H03M13/271 , H03M13/2764 , H04L1/0052
摘要： A method and apparatus are disclosed for deinterleaving expanded interleaved data blocks, particularly for use in a wireless telecommunications system such as provided by the Third Generation Partnership Project (3G) standard. The data is processed on a sequential element basis where each element has a pre-determined number of bits M which bits are contained in a block of sequential data words W′. The elements are extracted from the block of words W′ in sequential order, each element being extracted from either a single or two sequential interleaved words within the set of words W′. The elements are stored in selective location within a set of words W of a deinterleaver memory such that upon completion of the extraction and writing of all the elements, the words W from the deinterleaver memory can be sequentially read out to correspond to an original data block of bits from which the block of interleaved elements was created. Additional conventional processing results in the contraction of the deinterleaved expanded words to reproduce the data block of bits in a receiver as originally designated for transmission in a transmitter.
摘要翻译：公开了用于对扩展的交错数据块进行解交织的方法和装置，特别是用于诸如由第三代合作伙伴计划（3G）标准提供的无线电信系统中。以顺序元素为基础对数据进行处理，其中每个元素具有预定数量的位M，这些位包含在顺序数据字W'的块中。从单词W'的块中按顺序提取元素，每个元素从单词W'中的单个或两个顺序交织单词中提取出来。元素被存储在解交织器存储器的一组字W内的选择性位置，使得在完成所有元素的提取和写入时，来自解交织器存储器的字W可被顺序读出以对应于原始数据块从中创建交织元素块。额外的常规处理导致解交织的扩展字的收缩，以再现原始指定用于在发射机中传输的接收机中的比特的数据块。

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