公开(公告)号：EP2332350A2

公开(公告)日：2011-06-15

申请号：EP09791364.4

申请日：2009-08-11

Applicant: Qualcomm Incorporated

Inventor： RAZDAN, Ashu ,  ROSEN, Eric ,  ROSS, David ,  BREWER, Beth ,  ANANTHANARAYANAN, Arulmozhi

IPC: H04W4/10

CPC classification number: H04L5/14 ,  H04W4/10 ,  H04W76/45

Abstract: In an embodiment, an originating device sends a request, to a server, to initiate a full-duplex session with a target device. Responsive to the full-duplex request, a half-duplex session is set-up from the originating device to the target device before the full-duplex session is set-up. The target device indicates its acceptance of the half-duplex session, receives half-duplex media from the originating device and selectively indicates its acceptance of the full-duplex session. In another embodiment, during a session currently supported either by half-duplex or full-duplex, the server arbitrating the session receives a request from one of the session participants to transition the session to another duplex-type. The server then selectively transitions the duplex-type of the session.

公开(公告)号：EP1260108B1

公开(公告)日：2010-04-28

申请号：EP01914640.6

申请日：2001-03-02

Applicant: QUALCOMM INCORPORATED

Inventor： MAGGENTI, Mark ,  CROCKETT, Douglas, M. ,  ROSEN, Eric

IPC: H04W4/10

CPC classification number: H04L63/0428 ,  H04L63/0442 ,  H04L63/065 ,  H04L63/08 ,  H04W4/10 ,  H04W76/45

Abstract: A push-to-talk communication device to participate in a group communication net (100) is claimed. The group communication net (100) comprises a controller (104) to manage the group communication net (100) and interface with the push-to-talk communication devices (108, 112 and 116). A processor converts information signals into packet data suitable for transmission over a distributed network. The processor may also have identification information, and updates its identification information when its current identification information has or is about to change. The processor then transmits its new identification information to the controller (104). The push-to-talk devices (108, 112 and 116) also comprise a transmitter to transmit packet data through a first channel to the controller. A receiver receives packet data through a second channel from the controller. The push-to-talk devices (108, 112 and 116) also comprise a user activated mechanism to activate the transmitter when a user of the communication device wishes to transmit packet data to the controller.

公开(公告)号：EP1388219B1

公开(公告)日：2010-04-07

申请号：EP02726872.1

申请日：2002-05-14

Applicant: QUALCOMM INCORPORATED

Inventor： ROSEN, Eric ,  MAGGENTI, Mark

IPC: H04B7/00

CPC classification number: H04M3/56 ,  H04M3/42 ,  H04M3/42382 ,  H04M3/566 ,  H04M2203/2044 ,  H04M2203/5027 ,  H04M2203/5072 ,  H04W4/10 ,  H04W8/22 ,  H04W52/0216 ,  H04W76/45 ,  Y02D70/1222 ,  Y02D70/23

Abstract: A method and apparatus for providing an efficient dormant mode for push-to-talk communication devices (102, 104, 106) in a group communication network (100) provides for determining whether the net has been inactive for a predetermined first time period and, if so, causing each member of the net to enter a control-hold mode, wherein each member of the net maintains its dedicated traffic channel. The method further includes the steps of determining whether each member of the net has been in the control-hold mode for a predetermined second time period and, if so, causing each member of the net to enter a dormant mode, wherein each member of the net releases its dedicated traffic channel. The method and apparatus further provides for causing each member of the net to cache its service configuration state before entering the dormant mode.

公开(公告)号：EP1613427A2

公开(公告)日：2006-01-11

申请号：EP04717997.3

申请日：2004-03-05

Applicant: QUALCOMM INCORPORATED

Inventor： ROSEN, Eric ,  CHANDHOK, Ravinder, Paul ,  CROCKETT, Douglas ,  LEVI, Jake ,  PURLIA, John ,  ROSS, David

IPC: B01J23/40

CPC classification number: G06Q10/107 ,  H04W4/06 ,  H04W68/00

Abstract: The disclosed embodiments provide methods and apparatus for exchanging attachments in a wireless communication network. The method includes receiving an indication from a user for sending an attachment to at least one target, and forwarding an alert to the at least one target, wherein the alert includes information about the attachment.

公开(公告)号：EP1393585A1

公开(公告)日：2004-03-03

申请号：EP02736838.0

申请日：2002-05-14

Applicant: QUALCOMM INCORPORATED

Inventor： ROSEN, Eric ,  MAGGENTI, Mark

IPC: H04Q7/20 ,  H04B7/00

CPC classification number: H04W72/005 ,  H04M3/42 ,  H04M3/42382 ,  H04M3/56 ,  H04M2203/2044 ,  H04W4/10 ,  H04W52/0219 ,  H04W76/19 ,  H04W76/27 ,  H04W76/45 ,  Y02D70/1222 ,  Y02D70/23

Abstract: A method and apparatus for reducing latency in a group communication network provides for a significant reduction in the actual total dormancy wakeup time and the PTT latency by exchanging group call signaling even when mobiles are dormant and no traffic channel is active. The method and apparatus provides for exchanging the group call signaling through the use of the short data burst (SDB) message signaling. The method and apparatus provides for re-establishing dedicated traffic channels for the talker mobile and the dormant listener mobiles advantageously in parallel.

Abstract translation: 用于减少组通信网络中的等待时间的方法和装置通过交换群组呼叫信令来提供实际总休眠唤醒时间和PTT等待时间的显着降低，即使当移动台休眠并且没有业务信道是活动的时候。 该方法和装置提供了通过使用短数据突发（SDB）消息信令来交换组呼叫信令。 该方法和装置提供用于有利地并行地为讲话者移动台和休眠监听器移动台重新建立专用业务信道。

公开(公告)号：EP1260056A2

公开(公告)日：2002-11-27

申请号：EP01913272.9

申请日：2001-03-02

Applicant: QUALCOMM INCORPORATED

Inventor： MAGGENTI, Mark ,  CROCKETT, Douglas, M. ,  ROSEN, Eric

IPC: H04L12/18 ,  H04Q7/28

CPC classification number: H04M3/56 ,  H04L12/189 ,  H04L29/06027 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/4038 ,  H04L65/4061 ,  H04L69/04 ,  H04M3/563 ,  H04M7/006 ,  H04M2207/18 ,  H04W4/10 ,  H04W12/06 ,  H04W28/10 ,  H04W76/20 ,  H04W76/45

Abstract: A system and method for providing group communication services. Each of a plurality of communication devices coverts information signals into data packets suitable for transmission over a data network, such as the Internet. The data packets are transmitted through the data network to a communications manager. The communications manager acts as a configurable switch, allowing communications from any communication device to be routed to the plurality of communication devices. The communications manager further allows users of other communication systems and devices to participate in group communications with each other.