Techniques for determining a handoff profile between telecommunications networks

An apparatus, comprising:

• a processor component;
• communication link handoff (CLH) logic to be executed by the processor component to:
• obtain IP stream call quality values X1(i) and X2(i) over a sampled time period (N) of (j) samples for an ongoing telephone call over (a) a first IP communication link carrying a first IP stream and (b) a second IP communication link carrying a second IP stream;
• determine call quality values Xb(i) for a combined version of the first and second IP streams;
• store the IP stream call quality values X1(i), X2(i), and Xb(i);
• calculate a first instantaneous annoyance value a1(j), a2(j), and ab(j) for each of the stored call quality values X1(j), X2(j), and Xb(j) within sampled time period (N);
• calculate a first current accumulated annoyance value for each IP stream A1(i), A2(i), and Ab(i) by summing the instantaneous annoyance values a1(j), a2(j), and ab(j);
• initiate a handoff of the telephone call from the IP communication links to a circuit-switched cellular communication link if the accumulated annoyance value for the combined version of the IP streams, Ab(i), is greater than a handoff threshold value for the combined version of the IP streams, Hb(i);
• otherwise
• determine whether A2(i) is greater than a handoff threshold value for the second IP stream, H2(i);
• determine whether the first IP stream over the first IP communication link is predicted to disconnect imminently;
• and if so
• initiate a handoff of the telephone call from the combined IP stream communication links to a circuit-switched cellular communication link when the second accumulated annoyance value A2(i) is greater than a second handoff threshold value H2(i).

A computer implemented method operative on a processor component, the method comprising:

• obtaining IP stream call quality values X1(i) and X2(i) over a sampled time period (N) of (j) samples for an ongoing telephone call over (a) a first IP communication link carrying a first IP stream and (b) a second IP communication link carrying a second IP stream;
• determining call quality values Xb(i) for a combined version of the first and second IP streams;
• storing the IP stream call quality values X1(i), X2(i), and Xb(i);
• calculating a first instantaneous annoyance value a1(j), a2(j), and ab(j) for each of the stored call quality values X1(j), X2(j), and Xb(j) within sampled time period (N);
• calculating a first current accumulated annoyance value for each IP stream A1(i), A2(i), and Ab(i) by summing the instantaneous annoyance values a1(j), a2(j), and ab(j);
• initiating a handoff of the telephone call from the IP communication links to a circuit-switched cellular communication link if the accumulated annoyance value for the combined version of the IP streams, Ab(i), is greater than a handoff threshold value for the combined version of the IP streams, Hb(i);
• otherwise
• determining whether A2(i) is greater than a handoff threshold value for the second IP stream, H2(i);
• determining whether the first IP stream over the first IP communication link is predicted to disconnect imminently;
• and if so
• initiating a handoff of the telephone call from the combined IP stream communication links to a circuit-switched cellular communication link when the second accumulated annoyance value A2(i) is greater than a second handoff threshold value H2(i).