<Dl> <Dd> SF = chip rate symbol rate (\ displaystyle \ (\ mbox (SF)) = (\ frac (\ mbox (chip rate)) (\ mbox (symbol rate)))) </Dd> </Dl> <Dd> SF = chip rate symbol rate (\ displaystyle \ (\ mbox (SF)) = (\ frac (\ mbox (chip rate)) (\ mbox (symbol rate)))) </Dd> <P> Orthogonal variable spreading factor (OVSF) is an implementation of code division multiple access (CDMA) where before each signal is transmitted, the signal is spread over a wide spectrum range through the use of a user's code . Users' codes are carefully chosen to be mutually orthogonal to each other . </P> <P> These codes are derived from an OVSF code tree, and each user is given a different code . An OVSF code tree is a complete binary tree that reflects the construction of Hadamard matrices . </P>

Length of a chip sequence used in cdma phone systems