The best Side of 3GPP2 standards
The best Side of 3GPP2 standards
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HSDPA and HSUPA incorporate new capabilities on the 3G UMTS (Universal Mobile Telecommunication System) networks for FDD and TDD deployments. The main focus of HSPA (HSDPA and HSUPA) is greater little bit rates and reduce latencies. As Component of 3GPP launch five, HSDPA introduces a fresh significant-pace downlink channel shared concerning multiple end users. It utilizes a A great deal shorter transmission period of just 2 milliseconds than over 10 ms in the first UMTS (3GPP Release 99). Therefore, it is way more rapidly at switching people and responding to the switching radio network problems. Additionally, it employs quicker data website traffic scheduling which will allow it to allocate the majority of the accessible cell ability to 1 consumer so which they get superior-pace data in the short space of your time. HSDPA can flexibly use the QPSK or 16 QAM modulation schemes to utilise radio network sources proficiently. Furthermore, it employs outstanding coding procedures and more rapidly retransmission of faulty data packets.
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cdmaOne's technical heritage is reflective of both of those its delivery like a Qualcomm internal task, and the globe of then-unproven competing digital cellular standards less than which it had been developed. The expression IS-ninety five generically relates to the earlier list of protocol revisions, namely P_REV's just one by means of 5.
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信号合并： 两个基站的信号同时传输给移动终端，进行信号合并处理，确保通信的连续性。
This is a strategy of allocation of satellite channels to the consumer on need. There is a superb rise in the volume of simultaneous utilizes on dema
在算法实施后，通常需要通过仿真和实际测试来评估其性能，主要考虑以下几个方面：
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The task is to uncover the final congestion window size when the many packet drops are now being encountered via the sender. The TCP Taho
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В явном виде отсутствует временное или частотное разделение каналов, каждый абонент постоянно использует всю ширину канала, передавая сигнал в общий частотный диапазон и принимая сигнал из общего частотного диапазона. При этом широкополосные каналы приёма и передачи находятся на разных частотных диапазонах и не мешают друг другу.