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Main Features Of IS-95 (cdmaone)

Main Features Of IS-95 (cdmaone). Modulation is performed using DSSS. Employs variable rate coders. Powerful low rate forward error-correcting codes. Fast power control is employed to over come the near-far problem. Soft handoff is employed.

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Main Features Of IS-95 (cdmaone)

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  1. Main Features Of IS-95 (cdmaone) Modulation is performed using DSSS. Employs variable rate coders. Powerful low rate forward error-correcting codes. Fast power control is employed to over come the near-far problem. Soft handoff is employed. Qualcomm code excited linear predictive (QCELP): 13.4 kbps

  2. Frequency and Channel Spec Reverse: 824-849MHz, forward: 869-894MHz; PCS version 1800-2000MHz Data rate 9.6kb/s; chip rate 1.2288Mchips/s, spreading factor 128. Power Control: Close-loop/open-loop Rake receiver; Soft handoff

  3. Forward CDMA channel

  4. Spec Convolution code ½. Repetition circuit depending on speech Block interleaver Long PN sequence:

  5. Power Control Open Loop Close Loop

  6. Orthogonal Covering and modulation Walsh function: page 574 Quadrature modulation

  7. Uplink

  8. Reverse Link Spec

  9. CT2 CT2 is a cordless telephony standard that was used in the early nineties to provide short-range proto-mobile phone service in some countries in Europe. It is considered the precursor to the popular DECT system.

  10. DECT Digital Enhanced (formerly European) Cordless Telecommunications is an ETSI standard for digital portable phones, commonly used for domestic or corporate purposes. DECT can also be used for wireless data transfers. DECT is recognised by the ITU as fullfilling the IMT-2000 requirements and thus qualifies as a 3G system, as a part of the IMT-2000 group of technologies,

  11. DECT functional concept Portable handset Radio fixed part Cordless controller Network-specific interface unit Supplementary services

  12. DEC spec

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