发明名称 |
Additional information for voice group call service |
摘要 |
A method and system for providing the active members of a Voice Group Call Service with additional information. The additional information is transmitted in a message on the associated control channel for the downlink traffic channel of the voice group. The additional information is transmitted simultaneously to an ongoing voice group call.
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申请公布号 |
US7460875(B2) |
申请公布日期 |
2008.12.02 |
申请号 |
US20040580093 |
申请日期 |
2004.11.19 |
申请人 |
T-MOBILE DEUTSCHLAND GMBH |
发明人 |
BRASS VOLKER;GRETHE WALTER;SIEREDZKI THOMAS |
分类号 |
H04B7/00;H04W4/06 |
主分类号 |
H04B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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