Implement method of uplink/downlink control channel

This invention discloses a method for realizing uplink and downlink control channel, which distributes a first shared resource tank, a second and a third shared resource tank for the up control channel,and the up control channel of a user uses said first shared resource tank to transmit downlink data, the resource distribution of the up control channel of a user is corresponding to the distribution state of its downlink shared control channel and when a user sends uplink data, its uplink control channel uses said second shared resource tank and transmits them so as to multiplex the uplink control channel of a user with its uplink data channel, when a user does not transmit uplink data and downlink data, its uplink control channel uses said third shared resource tank and carries with user ID information. The realization method for the downlink control channel is similar to the uplink control channel.