| 3G,full name is the 3rd Generation, relative to the simulate standard first Generation and the digital standard second Generation ,international telecom union(ab.ITU) have affirmed four 3G standards,including WCDMA,CDMA2000,TD-SCDMAand WiMAX。Time Division-Synchronous Code Division Multiple Access (ab. TD-SCDMA),is one of the ITU standard 3G technology criterion,which was brought forward by China and recognited international wireless communicate standard by all over the word。TD-SCDMA is a communications systems in the integration of many multiple access technology ,such as TDD, CDMA, FDMA, SDMA .It's core network is based on GSM / GPRS network evolution, maintainning their compatibility.The networks using time division duplex,smart antennas,uplinksynchronization,multi-userdetection, dynamic channel allocation, and other new technology, disrupt substantially reduced, increased system capacity and reduce the transmitter power and cost wireless base stations. Network planning is a very important link in the initial construction of communications network.This paper introduced a referral TD-SCDMA wireless network planning, firstly, introduced TD-SCDMA the basic tenets of introduction and the key technic,and then depicted the TD-SCDMA network planning process, following particular research the plan of TD-SCDMA include TD-SCDMA propagation model choice, TD-SCDMA network size estimates, TD-SCDMA wireless network survey and so on。Link with the characteristic of the TD-SCDMA,in the middle of fact work,bring forward the plans of TD-SCDMA indoors coverage solutions and the TD-SCDMA network optimization. Lastly ,combine with the two of cases to explain。... |
