公开(公告)号：US09319514B1

公开(公告)日：2016-04-19

申请号：US14849189

申请日：2015-09-09

Applicant: Sprint Spectrum L.P.

Inventor： Baoquan Zhang ,  Tong Zhou

IPC: H04M3/42 ,  H04W4/16

CPC classification number: H04M3/42357 ,  H04M3/42017 ,  H04M3/42068 ,  H04M3/4211 ,  H04M3/4285

Abstract: A node in a telephone network such as a switch stores associations between called and calling parties and colored ringback media played by the called party. Later, when the same calling party calls the called party, the node retrieves the stored ringback media and forwards the media to the calling party on behalf of the called party. In one embodiment, the node comprises a switch. In other embodiments, the node is a central server caching called/calling party combinations and associated ringback media and provides the ringback media forwarding function for a distributed population of called parties. Such called parties may comprise wireless phones.

公开(公告)号：US08639279B2

公开(公告)日：2014-01-28

申请号：US13852356

申请日：2013-03-28

Applicant: Sprint Spectrum L.P.

Inventor： Tong Zhou ,  Ronald E. Lewis

IPC: H04B7/00

CPC classification number: H04W76/005 ,  H04W76/45

Abstract: An originating mobile station seeks to establish a push-to-talk (PTT) communication session with a destination mobile station. To do this, the originating mobile station transmits a first request message that requests the PTT session. Before receiving a predefined indication that the requested PTT session has been accepted, the originating mobile station transmits a first continuation message that includes first session description information to facilitate establishment of the PTT session. A PTT server receives the first request message and, before receiving the first continuation message, transmits to the destination mobile station a second request message that requests the PTT session. The PTT server then transmits a second continuation message that includes second session description information. The destination mobile station receives the second request message and, before receiving the second continuation message, transmits an acceptance message indicating acceptance of the requested PTT session.

Abstract translation: 始发移动台寻求与目的地移动台建立一键通（PTT）通信会话。 为此，始发移动台发送请求PTT会话的第一请求消息。 在接收到所请求的PTT会话已被接受的预定义指示之前，始发移动台发送包括第一会话描述信息的第一连续消息以便于建立PTT会话。 PTT服务器接收第一请求消息，并且在接收到第一连续消息之前向目标移动台发送请求PTT会话的第二请求消息。 PTT服务器然后发送包括第二会话描述信息的第二连续消息。 目的地移动站接收第二请求消息，并且在接收到第二连续消息之前，发送表示接受所请求的PTT会话的接受消息。

公开(公告)号：US20130210476A1

公开(公告)日：2013-08-15

申请号：US13852356

申请日：2013-03-28

Applicant: Sprint Spectrum L.P.

Inventor： Tong Zhou ,  Ronald E. Lewis

IPC: H04W76/00

CPC classification number: H04W76/005 ,  H04W76/45

Abstract: An originating mobile station seeks to establish a push-to-talk (PTT) communication session with a destination mobile station. To do this, the originating mobile station transmits a first request message that requests the PTT session. Before receiving a predefined indication that the requested PTT session has been accepted, the originating mobile station transmits a first continuation message that includes first session description information to facilitate establishment of the PTT session. A PTT server receives the first request message and, before receiving the first continuation message, transmits to the destination mobile station a second request message that requests the PTT session. The PTT server then transmits a second continuation message that includes second session description information. The destination mobile station receives the second request message and, before receiving the second continuation message, transmits an acceptance message indicating acceptance of the requested PTT session.

Abstract translation: 始发移动台寻求与目的地移动台建立一键通（PTT）通信会话。 为此，始发移动台发送请求PTT会话的第一请求消息。 在接收到所请求的PTT会话已被接受的预定义指示之前，始发移动台发送包括第一会话描述信息的第一连续消息以便于建立PTT会话。 PTT服务器接收第一请求消息，并且在接收到第一连续消息之前向目标移动台发送请求PTT会话的第二请求消息。 PTT服务器然后发送包括第二会话描述信息的第二连续消息。 目的地移动站接收第二请求消息，并且在接收到第二连续消息之前，发送表示接受所请求的PTT会话的接受消息。

公开(公告)号：US08655318B2

公开(公告)日：2014-02-18

申请号：US13851845

申请日：2013-03-27

Applicant: Sprint Spectrum L.P.

Inventor： Tong Zhou ,  George Jason Schnellbacher

IPC: H04M1/66

CPC classification number: H04W60/00 ,  H04L63/068 ,  H04L63/0892 ,  H04W8/12 ,  H04W12/06

Abstract: A mobile node and its home system generate synchronized time-based codes at periodic time intervals. Each time-based code is valid for a predetermined time period. To facilitate anonymous operation when roaming, the mobile node identifies itself with a coded identifier instead of a public identifier. The coded identifier used at a given time includes the time-based code that is valid for that given time. To authenticate the mobile node, a serving system receives authentication information from the mobile node and forwards the authentication information to a home system. The authentication information includes the current time-based code and a timestamp. The home system identifies the mobile node from the current time-based code and the timestamp. The home system then uses the authentication information to authenticate the mobile node.

Abstract translation: 移动节点及其家庭系统以周期性的时间间隔生成同步的基于时间的代码。 每个基于时间的代码在预定时间段内有效。 为了便于漫游时的匿名操作，移动节点识别自己的编码标识符而不是公共标识符。 在给定时间使用的编码标识符包括对该给定时间有效的基于时间的代码。 为了认证移动节点，服务系统从移动节点接收认证信息，并将认证信息转发给家庭系统。 认证信息包括当前基于时间的代码和时间戳。 家庭系统从当前基于时间的代码和时间戳识别移动节点。 然后，家庭系统使用认证信息来认证移动节点。

公开(公告)号：US20130210391A1

公开(公告)日：2013-08-15

申请号：US13851845

申请日：2013-03-27

Applicant: Sprint Spectrum L.P.

Inventor： Tong Zhou ,  George Jason Schnellbacher

IPC: H04W60/00

CPC classification number: H04W60/00 ,  H04L63/068 ,  H04L63/0892 ,  H04W8/12 ,  H04W12/06

Abstract: A mobile node and its home system generate synchronized time-based codes at periodic time intervals. Each time-based code is valid for a predetermined time period. To facilitate anonymous operation when roaming, the mobile node identifies itself with a coded identifier instead of a public identifier. The coded identifier used at a given time includes the time-based code that is valid for that given time. To authenticate the mobile node, a serving system receives authentication information from the mobile node and forwards the authentication information to a home system. The authentication information includes the current time-based code and a timestamp. The home system identifies the mobile node from the current time-based code and the timestamp. The home system then uses the authentication information to authenticate the mobile node.

Abstract translation: 移动节点及其家庭系统以周期性的时间间隔生成同步的基于时间的代码。 每个基于时间的代码在预定时间段内有效。 为了便于漫游时的匿名操作，移动节点识别自己的编码标识符而不是公共标识符。 在给定时间使用的编码标识符包括对该给定时间有效的基于时间的代码。 为了认证移动节点，服务系统从移动节点接收认证信息，并将认证信息转发给家庭系统。 认证信息包括当前基于时间的代码和时间戳。 家庭系统从当前基于时间的代码和时间戳识别移动节点。 然后，家庭系统使用认证信息来认证移动节点。