Catalonia's separatist leaders had on Tuesday signed an independence declaration but said they were suspending it in the hope Madrid would negotiate.
The Catalan president says he has a mandate to declare independence for the northeastern region, but proposes waiting "a few weeks" in order to facilitate a dialogue.
Catalonia's leader has vowed to declare independence within days, claiming a mandate from Sunday's referendum which was declared illegal by Madrid and the Spanish courts.
The far-left party CUP says the Catalan government plans to present the results of last Sunday's disputed referendum on Monday, which will trigger a declaration of independence.
Breaking weeks of virtual silence on the subject, the European Commission said the referendum was "not legal" under Spanish law and was an "internal matter" for Madrid.
Lionel Messi scored twice as Barcelona beat Las Palmas 3-0 in a match played behind closed doors after the Spanish league refused Barca's plea to postpone the game.
Police fired rubber bullets at Barcelona polling stations, and have clashed with protestors throughout Catalonia on a banned referendum on breaking away from Spain.
Spain's government announced it would take over the payment of essential services and public workers' salaries in Catalonia to prevent it from spending money on the referendum slated for October 1.
Draped in red, yellow and blue separatist flags -- with one banner reading "Goodbye Spain" -- they marched through central Barcelona in what many hope will be the last protest before independence.
Spain's Deputy Prime Minister blasted the parliament's agreement to vote on the referendum bill with little debate as an "act of force" that is characteristic of "dictatorial regimes".
Catalonia's regional parliament on Wednesday agreed to vote on a disputed bill that paves the way for a referendum on independence from Spain on October 1.