METHOD FOR IMPROVING OR ENABLING RADIO COVERAGE FOR A USER EQUIPMENT WITH RESPECT TO A MOBILE COMMUNICATION NETWORK USER EQUIPMENT ADAPTED FOR HAVING AN IMPROVED RADIO COVERAGE RELAY USER EQUIPMENT ADAPTED FOR PROVIDING AN IMPROVED RADIO COVERAGE TO A USER EQUIPMENT SYSTEM FOR IMPROVING OR ENABLING RADIO COVERAGE FOR A USER EQUIPMENT MOBILE COMMUNICATION NETWORK PROGRAM AND COMPUTER PROGRAM PRODUCT

摘要

The invention relates to a method for improving or enabling radio coverage for user equipment in connection with a mobile communication network, wherein the user equipment and the relay user equipment are adapted to use a device to device communication mode (D2D mode) And the base station entity also sends an indication related to the discovery time interval and the relay user equipment is connected to the base station entity and the user equipment is connected to the base station entity of the access network of the mobile communication network or other base station entity The method comprising at least one of a first step and a second step or a third step, wherein the method comprises at least a first step and a second step, In a first step, the user equipment transmits a first discovery signal, the first discovery signal is received by the relay user equipment, the first discovery signal comprises a time limit in relation to the discovery time interval, and / Or synchronization indication, wherein the synchronization indication is related to an estimated timer deviation of a timer in the user equipment in relation to a master timing schedule of the base station entity, - in a second step subsequent to the first step, the relay user equipment applies reception capabilities during a first reception time interval, upon receipt of a first discovery signal from the user equipment, And the first reception time interval depends on the synchronization indication and / or the time limit of the first detection signal, - in a third step, the relay user equipment transmits a second discovery signal, the second discovery signal indicates to the user equipment the master timing schedule of the base station entity, and the user equipment, during a second reception time interval, And the second reception time interval includes but is greater than the detection time interval in time and the second reception time interval is related to the estimated timer deviation of the timer in the user equipment in relation to the master timing schedule of the base station entity .