US 8661079

US8661079 — Patent Overview

Title: Method and apparatus for establishing an invite-first communication session
Patent number: US8661079B2
Assignee (current and original, per listing): Qualcomm Inc
Application number: US10/371,338
Filed / priority date: 2003-02-20
Publication date (grant): 2014-02-25
Legal status (as listed): Expired – Fee Related; adjusted expiration 2030-05-25
Inventors: David Jonathan Ross; Ravinder Chandhok; Gil Balaoing; Eric C. Rosen
Source: https://patents.google.com/patent/US8661079/en

Purpose. The patent addresses point-to-point and point-to-multipoint wireless communications, where a dormant packet data session must be reactivated, a transition the text says is accompanied by "considerable delay in the system response." It targets dispatch-type services (push-to-talk), whose key feature is that "communication is quick and spontaneous," and where PTT latency is "a critical parameter."

Plain-language scope. Instead of a talker simply seizing the floor, the disclosed approach invites before connecting. Per the definitions section, a method "includes receiving an invite message from an inviter, forwarding the invite message to at least one invitee, receiving a response from one of the at least one invitee in response to the invite message, and establishing a communication session between the inviter and the at least one invitee." A parallel formulation begins from "receiving an input from an inviter who wishes to invite at least one invitee." The excerpt also recites an apparatus comprising "a memory unit, a receiver, a transmitter, and a processor communicatively coupled with the memory unit, the receiver, and the transmitter," where the processor carries out the above methods. Disclosed figures include a group communications system (FIG. 1), device interaction with a group communication server (FIG. 2), a wireless infrastructure (FIG. 3), first and second invite-first call setup processes (FIGs. 4–5), and a group call server (FIG. 6).

What the excerpt does not establish. The supplied text contains no claims, no full written description, no figures, and no cited prior art. It does not establish the number or exact wording of claims, claim scope, the full specification, dependent embodiments, prosecution history, or the accuracy of the listed legal status. No litigation, ownership-transfer, validity, or prior-art analysis is included or implied here.