The 36-year-old rapper was not in court Monday but entered his plea via attorney Blair Berk. West had pleaded not guilty in November to the misdemeanor charges of criminal battery and attempted grand theft in connection with the July 19 scuffle.
The grand theft charge was dropped in exchange for the plea. Each of the counts carried a penalty of up to six months in jail or a $1,000 fine.
The altercation between West and Ramos was caught on video, which showed the rapper heading to a car at the airport when he stopped and got into an argument with one of the numerous photographers there. West was then seen putting the photographer in a headlock and forcing him to the ground.
Ramos, who previously told reporters he was in "complete shock" by the attack, said in court Monday he was "only doing his job." Ramos said he was still suffering physically and emotionally.
Attorney Gloria Allred told reporters after the hearing Monday that she believed the sentence was "not sufficient." She said she was still "vigorously" litigating the civil suit Ramos filed against West in August.
Earlier this year, L.A. County prosecutors declined to file charges against West for allegedly punching a man at a Beverly Hills chiropractor's office after the rapper reached a civil compromise with the alleged victim.
West allegedly punched the man after he "used a racial epithet" at West's fiancee,