Paclitaxel (commonly known as Taxol) is usually weekly. 12 doeses ( over 3 months) is a fairly standard teratment so probably that's what you will have. Always worth checking through, I failed entirely first go t realise I had Herceptin for a year not just three months!!
A round or cycle usually refers to one treatment, but some are weekly (usually because it is too hard on the body to do a larger dose infrequently) and others are three weekly, but could be two. The aim is to balance inconvenience, travel and initial reactions with minimising longer term negative reactions as far as is possible for an effective, or therapeutic dose.