The chapter concentrates on the transition of some RRM capabilities such as the packet scheduler into NodeB. The adjustments in RRM capabilities with the network nodes triggered added modifications of HSDPA air interface which include introduction of increased‐order modulation and coding strategies, and modification of the MAC protocol architecture for enabling the rapidly scheduling inside the BTS.
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Video clip Conferencing: EVDO's bidirectional data abilities and reduced latency have been beneficial for movie conferencing and online video calling applications. It allowed for smoother and a lot more dependable online video interaction.
Every BTS dedicates an important volume of output electrical power to a pilot channel, which happens to be an unmodulated PN sequence (To paraphrase, spread with Walsh code 0). Just about every BTS sector while in the network is assigned a PN offset in actions of sixty four chips.
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ms prolonged, and its body boundary is aligned towards the pilot. The sync channel constantly transmits only one information, the Sync Channel Message, which has a length and articles depending on the P_REV.
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Throughout this technique, the channel bandwidth is subdivided into a variety of sub-channels. This multiple access approach useful for voice and data transmission. During this method t
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As of this producing, HSDPA deployments are still part of the main period. In the second phase, HSDPA devices will be able to reach approximately forty two Mbps data rates. This is quicker than a few of now’s land-based mostly broadband connections.
Mistake Correction and Top quality of Company (QoS): EVDO incorporates error correction tactics to make sure the integrity of data for the duration of transmission, even in disorders with signal interference or sound.
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