US 7,460,515 B1 · Access control by call type

Abstract

A packet data service node (PDSN) is formed to establish a connection with a plurality of mobile terminals by way of one or more packet control function cards or devices. A packet control function (PCF) card or device is formed to provide an interface between the packet data domain and wireless domain and further to inform a base station controller/access network controller (BSC/ANC) to block the setup and establishment of any additional communication links in a specified manner until the overload condition ceases to exist. More specifically, the PCF receives loading information from each PDSN to which it is connected and determines a composite loading factor. The PCF transmits the composite loading factor to the BSC/ANC periodically or if the loading factor exceeds a specified threshold and call blocking should be initiated for packet data calls for a select group of mobile terminals.

Claims21

Dependent claims

A base station controller (BSC), comprising:

a bus coupled to a processor for transmitting computer instructions and control signals to and from the processor within the BSC;
memory coupled to the bus, the memory including computer instructions that define operational logic for causing the BSC to perform call blocking for a first select group of mobile terminals whenever a mobile terminal from the first select group generates call setup signals to establish a packet data session;
wherein the computer instructions stored within the memory define logic to prompt the processor to set a call block timer whenever call blocking is initiated for the first select group;
and
a processor coupled to the bus, the processor for executing computer instructions wherein the processor retrieves the computer instructions from the memory over the bus and executes the computer instructions to block call setup signals that ordinarily would be forwarded to a packet data service node (PDSN).

2 more elements

Dependencies are inferred from the claim text.

Access control by call type

Life of this patent

Access control by call type

Life of this patent

Abstract

Claims21