It is very likely that Mobile IP will be used by cellular devices. Must support compression of headers of arbitrary RTP streams. There must be a generic scheme which can compress reasonably well for any payload type and traffic pattern. 2.3 Efficiency 1. The error rate should only marginally increase the overhead under expected operating conditions.
Spectrum efficiency is a primary goal.
RFC2508 does not perform well enough. The relative overhead is the average header overhead relative to the payload. Error propagation due to header compression should be kept at an absolute minimum. Error propagation is defined as the loss or damage of headers subsequent to headers lost or damaged by the link, even if those subsequent headers are not lost or damaged. Error propagation reduces spectral efficiency and reduces quality.