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公开(公告)号：US07756085B2
公开(公告)日：2010-07-13
申请号：US10160874
申请日：2002-05-31
IPC分类号： H04B7/216
CPC分类号： H04B1/70735 , H04B2201/70707 , H04B2201/7071
摘要： Techniques for efficient searching in asynchronous systems, such as W-CDMA, as well as multi-mode searching, are disclosed. In one aspect, step one and step three search are performed in a single search engine. In another aspect, a search engine is configurable to search the offsets of a slot in step one search, producing sequential hypothesis energies, and peak detecting and sorting those energies. In yet another aspect, the peak detector and sorter are configurable to perform step one searching or step three/multimode searching. Various other aspects of the invention are also presented. These aspects have the benefit of circuit area and search-time efficiency which translate into reduced costs, increased standby time, increased acquisition speed, higher quality signal transmission, increased data throughput, decreased power, and improved overall system capacity.
摘要翻译： 公开了用于在诸如W-CDMA的异步系统中进行有效搜索的技术以及多模式搜索。 在一个方面，在单个搜索引擎中执行步骤1和步骤3搜索。 在另一方面，搜索引擎可配置为在步骤一搜索中搜索时隙的偏移量，产生顺序假设能量，以及峰值检测和排序这些能量。 在另一方面，峰值检测器和分类器可配置为执行步骤一搜索或步骤三/多模式搜索。 还提出了本发明的各种其它方面。 这些方面具有电路面积和搜索时间效率的优点，从而降低了成本，增加了待机时间，提高了采集速度，提高了信号传输质量，提高了数据吞吐量，降低了功耗，提高了整体系统容量。
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公开(公告)号：US08331330B2
公开(公告)日：2012-12-11
申请号：US12763646
申请日：2010-04-20
IPC分类号： H04B7/216
CPC分类号： H04B1/70735 , H04B2201/70707 , H04B2201/7071
摘要： Techniques for efficient searching in asynchronous systems, such as W-CDMA, as well as multi-mode searching, are disclosed. In one aspect, step one and step three search are performed in a single search engine. In another aspect, a search engine is configurable to search the offsets of a slot in step one search, producing sequential hypothesis energies, and peak detecting and sorting those energies. In yet another aspect, the peak detector and sorter are configurable to perform step one searching or step three/multimode searching. Various other aspects of the invention are also presented. These aspects have the benefit of circuit area and search-time efficiency which translate into reduced costs, increased standby time, increased acquisition speed, higher quality signal transmission, increased data throughput, decreased power, and improved overall system capacity.
摘要翻译： 公开了用于在诸如W-CDMA的异步系统中进行有效搜索的技术以及多模式搜索。 在一个方面，在单个搜索引擎中执行步骤1和步骤3搜索。 在另一方面，搜索引擎可配置为在步骤一搜索中搜索时隙的偏移量，产生顺序假设能量，以及峰值检测和排序这些能量。 在另一方面，峰值检测器和分类器可配置为执行步骤一搜索或步骤三/多模式搜索。 还提出了本发明的各种其它方面。 这些方面具有电路面积和搜索时间效率的优点，从而降低了成本，增加了待机时间，提高了采集速度，提高了信号传输质量，提高了数据吞吐量，降低了功耗，提高了整体系统容量。
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