Techniques for congestion control are disclosed. In one embodiment, a base station allocates a shared resource using a combination of zero or more individual grants and zero or more common grants, and generates a busy signal in response to loading conditions that exceed a pre-determined level. In another...http://www.google.de/patents/US7660282?utm_source=gb-gplus-sharePatent US7660282 - Congestion control in a wireless data network