发明授权
US07471659B2 Method for determining packet transmission system availability for packet data call origination during hybrid operation
有权
用于在混合操作期间确定分组数据呼叫发起的分组传输系统可用性的方法
- 专利标题： Method for determining packet transmission system availability for packet data call origination during hybrid operation
- 专利标题（中）： 用于在混合操作期间确定分组数据呼叫发起的分组传输系统可用性的方法
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申请号： US10434677申请日： 2003-05-09
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公开(公告)号： US07471659B2公开(公告)日： 2008-12-30
- 发明人: Sen-Der Huang , Don N. Andrus , James A. Hutchison , Rotem Cooper , Simon Turner
- 申请人： Sen-Der Huang , Don N. Andrus , James A. Hutchison , Rotem Cooper , Simon Turner
- 申请人地址： US CA San Diego
- 专利权人： QUALCOMM, Incorporated
- 当前专利权人： QUALCOMM, Incorporated
- 当前专利权人地址： US CA San Diego
- 代理商 Kam T. Tam; Darren M. Simon; Thomas R. Rouse
- 主分类号： H04B7/216
- IPC分类号： H04B7/216
摘要：
A system and method for determining 1xEV-DO availability for a packet data call in a wireless device is presented. When the wireless device receives a request to initiate a packet data call, the device determines if it currently has access to a preferred 1xEV-DO channel. The determination can be made by consulting a 1xEV-DO availability list stored in persistent memory on the wireless device. If available, the wireless device originates the packet data call on the 1xEV-DO channel. If the device is using a CDMA system that has 1xEV-DO channels but the availability or usability of those channels are unknown, the device polls the signal strength on the 1xEV-DO channels to determine the best 1xEV-DO channel to use for the packet data call. If no 1xEV-DO channel is available or if none of the available 1xEV-DO channels are usable, then the device originates the packet data call on a CDMA channel.