Patent ID: 9635699
Date: 2017-04-25
CPC Classifications: H04L,H04W

Claim:
1. A method, comprising: storing, in a memory of a network device, back-off definitions for different service categories of machine-type communications (MTC), wherein the back-off definitions include at least four different admission control levels for the different service categories, and wherein each of the different admission control levels corresponds to a different delay sensitivity for the different service categories; receiving a service connection request originating from a wireless terminal, wherein the service connection request includes an indication of one of the different service categories for the service connection request; identifying, by the network device and based on the indication, the service connection request as a MTC request; selecting, by the network device and based on the indication, an admission control level, of the at least four different admission control levels in the back-off definitions, for the MTC request; identifying, by the network device, a real-time available bandwidth capacity for at least one portion of a network associated with the MTC request; associating, by the network device, the real-time available bandwidth capacity with one of multiple congestion levels in the back-off definitions; selecting, by the network device and from the back-off definitions, a retry interval for the MTC request, wherein the retry interval corresponds to the selected admission control level for the MTC request and the one of multiple congestion levels; and sending, by the network device, the retry interval with a response for the MTC request.