Mobile Station Buffer Status Reporting for Radio Base Station Control

The patent segments the buffer status reporting by introducing separate logical channel groups: one for radio base station interface data and another for inter-mobile station interface data. Each logical channel is assigned to a specific interface type, allowing the mobile station to transmit targeted buffer status information for each interface through dedicated logical channels. This segmentation enables the radio base station to independently control data transmission on different interfaces based on specific buffer status reports, improving control reliability without requiring a completely new reporting mechanism.

The patent implements a universal buffer status reporting mechanism where the existing uplink shared channel and buffer status report structure are reused for dual-purpose: reporting both radio base station interface buffer status and inter-mobile station interface buffer status. By assigning different logical channel groups to represent different interfaces and allowing the radio base station to interpret the same reporting structure in multiple ways, the system achieves multi-functionality without increasing information processing complexity. The radio base station can optimize resource allocation for both interfaces using the same reporting framework.