US 9,002,396 B2Granted

Push to talk mobile station, mobile communication system, and program

AssigneeKYOCERA Corporation

InventorNoritake Shiga

Life of this patent

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Abstract

A mobile station 100 monitors, in Slotted mode, a Paging Channel Slot in a monitor cycle. The mobile station 100 includes: a user interface 53 which receives a PTT setting operation from a user for setting a PTT (Push to Talk) mode; a PTT communication control unit 51 which transmits an allocation request to the radio base station when the PTT setting operation is received; a slot cycle switching unit 52 which switches, when the PTT setting operation is received, the monitor cycle to a predetermined short cycle which is shorter than a cycle at the time of receiving the PTT setting operation; and a voice signal processing unit 40 which receives a voice packet after a PTT CALL is detected in a message transmitted from the radio base station to the mobile station, and reproduces a voice based on the voice packet.

Claims2

Dependent claims

A mobile station which (i) monitors, in a monitor cycle, a paging channel slot which stores a message therein and is transmitted by a radio base station in a transmission cycle, and (ii) performs a process according to the message, comprising:

a PTT setting reception unit operable to receive a PTT setting operation from a user for setting a PTT (Push to Talk) mode, in which a voice packet communication is available;
a monitor cycle switching unit operable to switch, when the PTT setting reception unit receives the PTT setting operation, the monitor cycle to a predetermined short cycle which is shorter than a cycle at a time of receiving the PTT setting operation;
a voice reproduction unit operable to receive a voice packet which is transmitted from the radio base station after a PTT CALL is detected in the message, and reproducing a voice based on the voice packet, the PTT CALL being a request for the voice packet communication;
and
a PTT cancel reception step of receiving a PTT cancel operation from the user for canceling the PTT mode, wherein
when the PTT cancel reception unit receives the PTT cancel operation, the monitor cycle switching unit switches the monitor cycle to a predetermined long cycle which is longer than a cycle at a time of receiving the PTT cancel operation.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/314,980Filed 25 Jun 2014 · continuation
Priority: JP 2003-28453131 Jul 2003
Published: US 2014/0308985 A116 Oct 2014
Granted: 7 Apr 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04W 4/10
Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective…:…
H04W 68/005
User notification, e.g. alerting and paging, for incoming communication, change of service or the like: transmission of information for alerting…
H04W 68/02
User notification, e.g. alerting and paging, for incoming communication, change of service or the like: arrangements for increasing efficiency of…
H04W 84/08
Large scale networks; Deep hierarchical networks: trunked mobile radio systems

Family

Application10/895,725Parent of this division · filed 21 Jul 2004
Application12/563,884Parent of this continuation · filed 21 Sep 2009
Application13/728,751Parent of this continuation · filed 27 Dec 2012
US 2014/0308985 A1Pre-grant publication · published 16 Oct 2014
US 8,792,927 B2Parent of this continuation
US 8,364,190 B2Parent of this continuation
US 7,620,411 B2Parent of this division
Application12/563,884Parent of this division
US 2005/0043024 A1Published application
US 2010/0009709 A1Published application
US 2013/0122954 A1Published application
US 9,002,396 B2This patent

From the US filing history. Foreign family members aren’t listed.