Title :
Compressed mode techniques for inter-frequency measurements in a wide-band DS-CDMA system
Author :
Gustafsson, Maria ; Jamal, Karim ; Dahlman, Erik
Author_Institution :
Ericsson Radio Syst. AB, Stockholm, Sweden
Abstract :
We discuss inter-frequency hand-over (IFHO) in third generation cellular systems based on wide-band DS-CDMA. In order to provide maximum flexibility for future radio network design, it is important to develop a technique allowing reliable IFHO in the system. The compressed mode (CM) scheme first presented by Baier et. al (see IEEE JSAC, vol.12, no.4, p.733-43, 1994) facilitates the use of the mobile-assisted hand-over (MAHO) technique commonly used in all second generation systems, also for IFHO in a CDMA system. We present and analyze four different ways of achieving a CM mechanism in a CDMA system. It is found that methods based on a variable spreading factor and coding-rate increment may be of most interest for practical use
Keywords :
broadband networks; cellular radio; channel capacity; code division multiple access; coding errors; data compression; encoding; error statistics; frequency measurement; packet radio networks; spread spectrum communication; BER performance; coding-rate increment; compressed mode techniques; inter-frequency measurements; mobile-assisted hand-over; packet transmission; radio network design; third generation cellular systems; variable spreading factor; wide-band DS-CDMA system; Electronic mail; Frequency; GSM; Interference; Internet; Multiaccess communication; Radio network; Speech; Transmitters; Wideband;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-3871-5
DOI :
10.1109/PIMRC.1997.624398
