问题已开启
(普通问题)
WCDMA SCCPCH的发射功率多大?
提问者: aoshicanglong 提问时间: 2012-04-27
• SM系统信源采用MCPA(1台)+RRH(5台),PCCPCH信道功率按照40dBm取定进行链路预算 2015-06-06
• 鼎立软件TD网络中PCCPCH_ISCP值有-70左右,代表什么意思,是不是上行有干扰? 2015-06-06
• 华为TDPCCPCHPOWER问题 2015-05-15
• TD中UE计算路损使用的码道是UpPCH还是PCCPCH? 2014-11-18
• WCDMA中终端如何区分CPICH和PCCPCH物理信道 2014-09-03
• DWPCH信道绝对功率的范围是从-150到400,PCCPCH功率能不能改到360 2014-08-13
• RRC建立在DCH信道上的时候,SCCPCH信道容量会不会影响RRC建立 2014-05-19
• TD中的PCCPCH功率和小区最大发射功率 2014-05-10
• 鼎立软件TD网络中PCCPCH_ISCP值有-70左右,代表什么意思,是不是上行有干扰? 2015-06-06
• 华为TDPCCPCHPOWER问题 2015-05-15
• TD中UE计算路损使用的码道是UpPCH还是PCCPCH? 2014-11-18
• WCDMA中终端如何区分CPICH和PCCPCH物理信道 2014-09-03
• DWPCH信道绝对功率的范围是从-150到400,PCCPCH功率能不能改到360 2014-08-13
• RRC建立在DCH信道上的时候,SCCPCH信道容量会不会影响RRC建立 2014-05-19
• TD中的PCCPCH功率和小区最大发射功率 2014-05-10
问题答案
( 1 )
1. except piolt for coherent demodulation in S-CCPCH, pilot from P-CPICH also could assist for demodulation.
2. simply said, more pilot bits, more better performance on demodulation with expense on system capacity.
also pilot bits are not used in this release. thus, normally this bits should be 0
SCCPCH #0 for PCH,
SCCPCH #1 for 2 FACH (one is mapped with DTCH, another is mapped with DCCH, CCCH or BCCH)
SCCPCH #3 for 2 FACH (one is mapped with CTCH (one Cell Broadcast Service is actived), another is mapped with BCCH and CCCH)
所以个人认为配置多条的主要目的是保证paging 和信令的可靠性和容量, 使其不受FACH上需要映射的traffic影响.
2. simply said, more pilot bits, more better performance on demodulation with expense on system capacity.
also pilot bits are not used in this release. thus, normally this bits should be 0
SCCPCH #0 for PCH,
SCCPCH #1 for 2 FACH (one is mapped with DTCH, another is mapped with DCCH, CCCH or BCCH)
SCCPCH #3 for 2 FACH (one is mapped with CTCH (one Cell Broadcast Service is actived), another is mapped with BCCH and CCCH)
所以个人认为配置多条的主要目的是保证paging 和信令的可靠性和容量, 使其不受FACH上需要映射的traffic影响.
回答者:
lbblbblbb
回答时间:2012-04-27 11:28
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