METHOD FOR CONTROLLING THE ACTIVITY OF A BASE STATION ENTITY IN A MOBILE COMMUNICATION NETWORK, BASE STATION ENTITY, MOBILE COMMUNICATION NETWORK AND PROGRAM COMPRISING A COMPUTER READABLE PROGRAM CODE
FIG1 schematically illustrates a mobile communication network comprising a base station entity and a mobile device 
In FIG1, a mobile communication network 10 is schematically shown having a base station entity 11. The base station entity 11 typically comprises a transmitter chain and a receiver chain (or components providing the transmitting functionality of the base station entity, and components providing the transmitting functionality of the base station entity), and has a radio coverage area 11' and a mobile device 20 is depicted being located within the radio coverage area 11' of the base station entity 11. The base station entity 11 is able to be operated in at least a first operational mode and a second operational mode. The first operational mode corresponds to the base station entity 11 transmitting radio frequency signals such that a control channel is received in the radio coverage area 11' of the base station entity 11 by the mobile device 20. This corresponds to the normal (and standardized) behaviour and situation of both the mobile device 20 and the base station entity 11. According to the present invention, the base station entity is able to be operated in the second operational mode which corresponds to the base station entity 11 being at least partly switched off. This means that at least during power saving time intervals the control channel is not provided in the radio coverage area 11' of the base station entity 11 as the transmitter chain of the of base station entity 11 is switched off (or is deactivated) in the second operational mode. According to the normal (standardized) behaviour of the mobile device 20 and the base station entity 11 (or the mobile communication network 10), the mobile device 20 interprets this situation as a situation where a specific requested service of the mobile communication network 10 is not available and an attachment, e.g. to a high bitrate Packet Switched (PS) service, is not possible. According to the present invention, also the receiver chain of the base station entity 11 is switched off (or is deactivated) (during the second operational mode) at least during a predetermined inactivation time interval. During a predetermined sensitive time interval (during the second operational mode of the base station entiy), the receiver chain is switched on (or is activated).
schematic
11
base station entity
22
second reactivation information
1
aspect
20
mobile device
10
mobile communication network
21
first reactivation information
["1. Method for controlling the activity of a base station entity (11) in a mobile communication network (10) by means of a mobile device (20), wherein the base station entity (11) is able to be operated in at least a first and a second operational mode, wherein the base station entity (11) comprises a transmitter chain and a receiver chain, wherein the first operational mode corresponds to the base station entity (11) transmitting radio frequency signals such that a control channel is received in a radio coverage area (11') of the base station entity (11) by the mobile device (20), wherein the second operational mode corresponds to the base station entity (11) -- switching off the transmitter chain for only parts related to certain transmission channels of the base station entity (11), and not providing the control channel in the radio coverage area (11') of the base station entity (11), -- switching off the receiver chain of the base station entity (11) for a predetermined inactivation time interval, and -- switching on the receiver chain of the base station entity (11) for a predetermined sensitive time interval, wherein the method comprises the following steps: -- in a first step, the mobile device (20) receives a first reactivation information (21) from the base station entity (11), wherein an activated broadcast control channel to transmit the first reactivation information (21) is temporarily provided for some periods of time by the base station entity (11), the first reactivation information (21) being related to the possibility and/or to the manner for the mobile device (20) to activate the first operational mode of the base station entity (11) starting from the second operational mode of the base station entity (11), -- in a second step, the mobile device (20) transmits a second reactivation information (22) to the base station entity (11) during the predetermined sensitive time interval of the base station entity (11), wherein dependent on a reception of the second reactivation information (22) by the base station entity (11) the first operational mode of the base station entity (11) is applied, wherein the second reactivation information (22) is a message or signal compliant to a communication on a Random Access Channel, RACH, of the base station entity (11)."]