Describe High Speed Packet Access
Describe High Speed Packet Access?
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High Speed Packet Access (or HSPA) is a group of two mobile telephony protocols, High Speed Downlink Packet Access (or HSDPA) and High Speed Uplink Packet Access (or HSUPA), which extends and enhances the performance of existing WCDMA protocols. The further standard, Evolved HSPA (also termed as HSPA+), was introduced late in 2008 with subsequent adoption globally into 2010.
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The DES algorithm derives the sixteen 48-bit subkeys, for utilization in each of 16 rounds, from 56-bit secret key supplied by the user. This is fascinating to consider the effect of employing a 768-bit key (divided to sixteen 48-bit subkeys) in place of sixteen assoc
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