FIELD: information technology.
SUBSTANCE: described are methods of sending messages for accessing a system. In one version, user equipment (UE) sends a first message with power margin information and buffer size information to access the system. Node B determines at least one parameter (for example, permission to use resources, power control information etc) based on power margin information and buffer size information. Node B sends a second message with said parameter(s). UE sends a third message based on said parameter(s), for example using uplink channel resources, given through permission to use resources, radiation power, determined based on power control information, etc. In another version, UE sends in the third message a report on the radio communication medium. This report can be used to select a cell and/or frequency for the UE. In another version, the second message includes power control information, and UE sends a third message based on power control information.
EFFECT: efficient messaging to provide system accessing.
32 cl, 17 dwg
