发明名称 |
SWITCHING BETWEEN CELLULAR AND LICENSE-EXEMPT (SHARED) BANDS |
摘要 |
A method and an apparatus for switching D2D data communications between a licensed and a license-exempt band are disclosed. A D2D device receives from a cellular network a pre-switch notification to prepare for a switch of its D2D communications, and in response adopts a temporary strategy for conducting its D2D transmissions prior to the switch. After the switch the D2D device discontinues the temporary strategy. In one embodiment the temporary strategy and its duration are indicated in the pre-switch notification. Two example temporary strategies are presented: ‘no-new-data’ where new data transmissions are suspended and data re-transmissions are sent with high reliability; and ‘no-feedback’ where new data is sent with high reliability and data re-transmissions are suspended. Different embodiments have the cellular network access node or D2D device contending for the radio resource in the license-exempt frequency band. |
申请公布号 |
US2014308954(A1) |
申请公布日期 |
2014.10.16 |
申请号 |
US201114235241 |
申请日期 |
2011.07.28 |
申请人 |
Wang Haifeng;Li Zhenhong;Zou Wei;Xu Jing;Zhou Ting;Du Jinling |
发明人 |
Wang Haifeng;Li Zhenhong;Zou Wei;Xu Jing;Zhou Ting;Du Jinling |
分类号 |
H04W36/16 |
主分类号 |
H04W36/16 |
代理机构 |
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代理人 |
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主权项 |
1. A method, comprising:
in response to receiving a pre-switch notification to prepare for a switch between a licensed frequency band and a license-exempt frequency band, adopting a temporary strategy for conducting data-related transmissions prior to the switch; and after the switch, discontinuing the temporary strategy. |
地址 |
Shanghai CN |