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What is Forward Link Channel Parameters? cdmaguru 28-May-2008 10:08:42 AMComments In my point of View Forward Link Channel Parameters are: * 64 orthogonal Walsh codes per sector to identify channels * Long code (period 2 42 -1) to scramble data * DS-SS at 1.2288 Mcps * Every cell uses the same PN sequence (period 2 15 or 26.67ms) and is identified by a pre-defined offset (64 x n chips) * Coherent QPSK demodulation * Diversity o Time diversity: coding + interleaving o Path diversity: soft handoff and RAKE receiver Posted by jahangir1983 In my point of View Forward Link Channel Parameters are: * 64 orthogonal Walsh codes per sector to identify channels * Long code (period 2 42 -1) to scramble data * DS-SS at 1.2288 Mcps * Every cell uses the same PN sequence (period 2 15 or 26.67ms) and is identified by a pre-defined offset (64 x n chips) * Coherent QPSK demodulation * Diversity o Time diversity: coding + interleaving o Path diversity: soft handoff and RAKE receiver Posted by jahangir1983 In my point of View Forward Link Channel Parameters are: * 64 orthogonal Walsh codes per sector to identify channels * Long code (period 2 42 -1) to scramble data * DS-SS at 1.2288 Mcps * Every cell uses the same PN sequence (period 2 15 or 26.67ms) and is identified by a pre-defined offset (64 x n chips) * Coherent QPSK demodulation * Diversity o Time diversity: coding + interleaving o Path diversity: soft handoff and RAKE receiver Posted by jahangir1983 Channel Sync Paging Traffic Data rate 1200 4800 9600 1200 2400 4800 9600 bps Code repetition 2 2 1 8 4 2 1 Modulation Symbol rate 4800 19,200 19,200 19,200 19,200 19,200 19,200 sps PN chips/ Modulation symbol 256 64 64 64 64 64 64 PN chips/bit 1024 256 128 1024 512 256 128 Posted by sean In my point of View Forward Link Channel Parameters are: * 64 orthogonal Walsh codes per sector to identify channels * Long code (period 2 42 -1) to scramble data * DS-SS at 1.2288 Mcps * Every cell uses the same PN sequence (period 2 15 or 26.67ms) and is identified by a pre-defined offset (64 x n chips) * Coherent QPSK demodulation * Diversity o Time diversity: coding + interleaving o Path diversity: soft handoff and RAKE receiver Posted by sagitraz |
Posted: 29-May-2008 02:44:56 AM By: sagitraz In my point of View Forward Link Channel Parameters are: * 64 orthogonal Walsh codes per sector to identify channels * Long code (period 2 42 -1) to scramble data * DS-SS at 1.2288 Mcps * Every cell uses the same PN sequence (period 2 15 or 26.67ms) and is identified by a pre-defined offset (64 x n chips) * Coherent QPSK demodulation * Diversity o Time diversity: coding + interleaving o Path diversity: soft handoff and RAKE receiver | |
Posted: 29-May-2008 09:10:23 AM By: sean Channel Sync Paging Traffic Data rate 1200 4800 9600 1200 2400 4800 9600 bps Code repetition 2 2 1 8 4 2 1 Modulation Symbol rate 4800 19,200 19,200 19,200 19,200 19,200 19,200 sps PN chips/ Modulation symbol 256 64 64 64 64 64 64 PN chips/bit 1024 256 128 1024 512 256 128 | |
Posted: 31-January-2009 12:35:13 PM By: jahangir1983 In my point of View Forward Link Channel Parameters are: * 64 orthogonal Walsh codes per sector to identify channels * Long code (period 2 42 -1) to scramble data * DS-SS at 1.2288 Mcps * Every cell uses the same PN sequence (period 2 15 or 26.67ms) and is identified by a pre-defined offset (64 x n chips) * Coherent QPSK demodulation * Diversity o Time diversity: coding + interleaving o Path diversity: soft handoff and RAKE receiver | |
Posted: 31-January-2009 12:36:28 PM By: jahangir1983 In my point of View Forward Link Channel Parameters are: * 64 orthogonal Walsh codes per sector to identify channels * Long code (period 2 42 -1) to scramble data * DS-SS at 1.2288 Mcps * Every cell uses the same PN sequence (period 2 15 or 26.67ms) and is identified by a pre-defined offset (64 x n chips) * Coherent QPSK demodulation * Diversity o Time diversity: coding + interleaving o Path diversity: soft handoff and RAKE receiver | |
Posted: 31-January-2009 12:37:18 PM By: jahangir1983 In my point of View Forward Link Channel Parameters are: * 64 orthogonal Walsh codes per sector to identify channels * Long code (period 2 42 -1) to scramble data * DS-SS at 1.2288 Mcps * Every cell uses the same PN sequence (period 2 15 or 26.67ms) and is identified by a pre-defined offset (64 x n chips) * Coherent QPSK demodulation * Diversity o Time diversity: coding + interleaving o Path diversity: soft handoff and RAKE receiver |