Britain Proposes New Ulster Rale
GB offers proposals on Oct 30 for sweeping overhaul of N Ireland govt that will broaden powers of Roman Catholic minority; pledges that N Ireland will remain part of United Kingdom as long as people wish it; offers Catholics new 'assembly or authority' to represent minority as well as majority; GB 'green paper', dealing with const reform and reorgn, is 1st official set of proposals to discuss new govt since Prime Min Heath imposed direct rule on province last March; calls for provincial assembly to direct most domestic affairs except law enforcement, which would be controlled by Parliament in London; says that Repub of Ireland must be taken into account in all arrangements; paper was drafted by W Whitelaw, Briton who is Sec of State for N Ireland under direct rule, and by his staff