Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus for robust automatic frequency control in CDMA systems with constant pilot signals










Image Number 3 for United States Patent #8107512.

There is provided a method for generating an error signal for an automatic frequency control (AFC) loop in a Code Division Multiple Access (CDMA) system. Sign information relating to phase differences in received pilot signals is accumulated. In one embodiment, the accumulated sign information is compared against predetermined threshold levels. The error signal is generated when at least one of the predetermined threshold levels is satisfied. In a second embodiment, the accumulated sign information is decimated. An output of the decimating step is utilized as the error signal for the AFC loop.








 
 
  Recently Added Patents
Garden tool handle
Method for forming contact hole
Vehicle front fender
Methods and systems for assessing sales activity of a merchant
Communications in an asynchronous cellular wireless network
Hypallergenic mosaic antigens and methods of making same
Preparation and use of meristematic cells belonging to the Dendrobium phalaenopsis, Ansellia, Polyrrhiza, Vanilla, Cattleya and Vanda genera with high content of phenylpropanoids, hydrosoluble
  Randomly Featured Patents
Method and apparatus for scan testing of multi-phase logic
Method and apparatus for creating and exposing order status within a supply chain having disparate systems
Cartridge fed apparatus for forming curved rectangular bodied needles
Self-retaining nut and method of applying to a panel
Liner protection in deep trench etching
Process for treating natural polyamide fibres of asymmetric structure, such as wool, with liquid ammonia
Methods of creating a virtual window
Hybrid image editor
Apparatus for transmitting/receiving data on a packet data control channel in a communication system
High pressure tin halide discharge lamp