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Method and apparatus for providing a low-latency, high-accuracy indication-to-speak and abandon call

A technology of instruction and call request, applied in the field of communication systems, which can solve problems such as the inability to establish PoC

Inactive Publication Date: 2005-12-14
LUCENT TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Instead, the calling mobile station waits for the call to be established, only to find that the PoC cannot be established

Method used

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  • Method and apparatus for providing a low-latency, high-accuracy indication-to-speak and abandon call
  • Method and apparatus for providing a low-latency, high-accuracy indication-to-speak and abandon call
  • Method and apparatus for providing a low-latency, high-accuracy indication-to-speak and abandon call

Examples

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Embodiment Construction

[0029]Exemplary embodiments of the present invention will be described below. In the interest of clarity, not all features of an actual implementation are described in this specification. It should of course be appreciated that in the development of any such practical embodiment, a number of implementation-specific decisions should be made in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, which are important for each It is different for each implementation. Furthermore, it should be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine procedure for those of ordinary skill in the art having the benefit of this disclosure.

[0030] The present invention is more advanced than the prior art by providing a call indication which has a waiting time equal to that of an unconfirmed call indication and an accuracy equal to that of a confirmed call in...

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Abstract

A push-to-talk over cellular (PoC) system is provided in which a negative-to-talk indication can be delivered to a requesting unit when the requested wireless unit is unavailable. In one embodiment of the invention, the first wireless unit is paged in response to receiving a request from said second wireless unit to transmit a message to said first wireless unit. A paging response signal is received from the first wireless unit, and the negative talk indication for the second wireless unit is delivered to the second wireless unit in response to receiving the paging response signal.

Description

technical field [0001] The present invention generally relates to a communication system providing a one-to-many conference mode, and more particularly to a short-waiting, high-accuracy negative call indication for a Push-to-talk over Cellular (PoC) system. Background technique [0002] In general, PoC systems provide a one-to-many transmission mode similar to conventional police or fire radio systems, which are usually wireless. In an analog system with a single base station, the first user captures the base station with an initial transmission activated by a push-to-talk button. Voice transmissions from the first user are received by the base station and retransmitted to the other users. The first user's transmission ends when the first user releases a push-to-talk button. This allows an other user to answer the first user, or initiate a new transmission by activating his / her radio with a push-to-talk button. In these types of systems, the wait time to talk is relativel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/10H04W4/16
CPCH04W4/10H04W4/16H04L65/4061H04L65/1016H04W76/45H04B7/24H04L12/28
Inventor 托马斯·L.·希勒戴维·A.·罗塞蒂
Owner LUCENT TECH INC