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| Article Name : | | | Methods for spectrum Assignment ,Pricing and Sensing Mechanism | | Author Name : | | | G.M.Kadhar Nawaz,A.JayanthilaDevi | | Publisher : | | | Ashok Yakkaldevi | | Article Series No. : | | | GRT-693 | | Article URL : | |  | Author Profile View PDF In browser | | Abstract : | | | In India, mobile service operators have always had to scramble for more spectrum allocation. However, in the last two years, the fight for spectrum has further intensified, mainly because the mobile subscriber base has grown at a very fast pace. Spectrum is like oxygen for mobile operators and lack of it leads to call drops (calls being disconnected) and congestion in the network. In India, allocation is handled by the Wireless Planning & Coordination (WPC) wing of the department of telecommunications (DoT). The two primary technologies in use today are GSM and CDMA. Both operate in different spectrum bands on account of their different technological requirements. The following spectrum bands are in use in India:GSM: Frequency bands 890-902.5 MHz paired with 935-947.5 MHz and 902.5-915 MHz paired with 947.5-960 MHz has been allocated to GSM technology. Initially, GSM operators are allocated a chunk of 4.4 Mhz and subsequent allocations are in multiples of 0.6 Mhz. This makes it a total of 25 + 25 MHz.CDMA: For CDMA, the frequency band earmarked is 824-844 MHz/869-889 MHz A total band of 20+20 MHz The allocation for CDMA, therefore, is slightly lower than that for GSM. CDMA operators are demanding that they be allocated as much spectrum as GSM which the latter is opposing. | | Keywords : | | |
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