H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/31
H04B 7/26 (2006.01) H04L 1/20 (2006.01) H04L 25/02 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2030607
The invention relates to a method in a mobile radio system having both digital and analog radio channels. An object of the invention is that a connection established on a digital radio channel often shall be possible to maintain even when the time dispersion on available digital radio channels exceeds the designed maximum time dispersion of equalizers in receiving stations. According the invention equalizers in the receivers of the system may be designed for a smaller maximum time dispersion than the total time dispersion the whole system shall be capable to handle. Instead handover is made to an other channel when the time dispersion of a used digital channel tends to become too big. When an other digital radio channel with low time dispersion is available handover is preferably done to this channel. Alternatively or in the absence of such a digital radio channel handover is performed to an analog radio channel.
Dahlin Jan Erik Ake Steiner
Uddenfeldt Jan Erik
Marks & Clerk
Telefonaktiebolaget Lm Ericsson
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