Coexistent working mode establishment method, user equipment, base station and system

A communication system, comprising:

• a base station including
• a control device, configured to pre-configure information for co-existence working mode, and
• a receiving device, configured to receive, from a user equipment in a first communication system, a mode establishing request for indicating a co-existence problem experienced by the user equipment and providing assistance information for co-existence working mode in which the user equipment performs a first communication with the base station and performs a second communication with an apparatus in a second communication system which is different from the first communication system,
• a control device, configured to encapsulate configuration information of a co-existence working mode allowed to be utilized by the user equipment into an establishing response message, and
• a transmitting device, configured to transmit the pre-configured information for co-existence working mode and the establishing response message to the user equipment,
• wherein the receiving device is further configured to receive a message indicating whether configuration of the co-existence working mode has been completed fed back from the user equipment, and
• wherein the pre-configured information of the co-existence working mode indicates whether the user equipment can deny uplink transmission of the first communication system;
• and
• the user equipment including
• a receiving device, configured to receive the pre-configured information for co-existence working mode from the base station in the first communication system,
• a information processing device, configured to generate a mode establishing request for indicating the co-existence problem experienced by the user equipment and providing the assistance information for the co-existence working mode in which the user equipment performs a first communication with a base station of the first communication system and performs a second communication with the apparatus in the second communication system which is different from the first communication system, and
• a transmitting device, configured to transmit the mode establishing request to the base station in the first communication system.