FIELD: radio engineering, communication.
SUBSTANCE: block spreading generating partial orthogality is applied for the uplink control channel for E-UTRA. Maximising multiplexing capacity leads to numerology causing odd-length sequences which do not have the favourable property of even-length sequences. In one example, the spreading factor of block spreading is changed to an even number, e.g., from 7 to 6. This enables usage of the partial orthogonality properties of constant-amplitude zero auto-correlation (CAZAC) sequences and as a result inter-code interference in the case of high Doppler shift is reduced.
EFFECT: achieving maximum multiplexing capacity without losing performance capacity with high Doppler shift by modifying the preceding scheduling request schemes.
61 cl, 12 dwg
