Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Data buffer structure for asynchronously received physical channels in a CDMA system










Image Number 9 for United States Patent #6624767.

A receiver unit for use in a CDMA system and including a channel processor, a buffer, and a data processor. The channel processor processes samples for one or more physical channels for each time interval to provide symbols. The buffer is operated as a number of memory banks. Each memory bank is associated with a respective time interval and stores symbols associated with that time interval. The data processor retrieves symbols for a particular "traffic" from one or more memory banks and processes the retrieved symbols. For the W-CDMA system, each traffic includes one or more radio frames for a particular transmission time interval. The receiver unit typically further includes a controller that directs the storage and retrieval of symbols to and from the memory banks and a decoder that decodes symbols processed by the data processor. For each time interval, radio frames for physical channels received starting within that time interval can be stored to permutated locations of designated sections of the memory bank. Radio frames associated with a particular CCTrCH can be stored to contiguous sections of the memory bank. Symbols for a particular traffic can be retrieved from one or more memory banks in permutated order.








 
 
  Recently Added Patents
Golf club cover
Negative active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery comprising the same
Taxi cab key chain
Image processing apparatus and image processing method
Method of controlling semiconductor device, signal processing method, semiconductor device, and electronic apparatus
Image processing unit, image processing method and program
Antitumoral compounds
  Randomly Featured Patents
Compact frequency doubler/multiplier circuitry
Method and apparatus for processing packets originating from local and neighboring basic service sets
Rotation angle sensor
Systems and methods for providing dynamic integration and access to disparate data sources
System and method for measuring wave directional spectrum and wave height
System and method for ranking search results based on tracked user preferences
Method of packaging food products
Two-step hydrodesulfurization of heavy hydrocarbon oil
Hepatitis a virus cell culture in vitro
System and method for reducing the rendering load for high depth complexity scenes on a computer graphics display