H04B 1/707 - Definition

Definition statement

This subclass covers:

Direct-sequence spread-spectrum techniques which directly modulate the data being transmitted by a spreading code whose frequency (chip rate) is much higher than the modulated bandwidth of the data signal (symbol rate).

Aspects relating to the codes e.g. types of codes, code generation and code allocation are classified in H04J 13.

Informative references

Attention is drawn to the following places, which may be of interest for search:

Carrier synchronization per se

H04L 7/06