M2M device retry instruction to non-peak network time

摘要

A network device stores back-off definitions for different service categories of machine-type communications (MTC). The network device receives a service connection request originating from a wireless terminal and identifies the service connection request as a MTC request. The network device identifies an available bandwidth capacity for at least one portion of a network associated with the MTC request and determines, when the available bandwidth is below an admission threshold capacity, an admission control level for the MTC request. The admission control level is selected from a group of different admission control levels. The network device calculates a retry interval for the MTC request based on the determined admission control level for the MTC request and the available bandwidth capacity, and sends the retry interval with a response for the MTC request.

主权项

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.