发明名称 |
System, method, and apparatus for improved space-time coding and dynamic switching with advanced receivers |
摘要 |
Methods and apparatus for allocating time-frequency resources to mobile terminals in a wireless communications system in which time-frequency resources may be selectively used according to a first multiple-input multiple-output (MIMO) transmission scheme or a second MIMO transmission scheme that differs from the first MIMO transmission scheme. An exemplary method comprises, for at least a first scheduling instance, identifying a first group of mobile terminals corresponding to the first MIMO transmission scheme and a second group of mobile terminals corresponding to the second MIMO transmission scheme, allocating time-frequency resources in a first pre-determined time-frequency zone exclusively to mobile terminals belonging to the first group, and allocating time-frequency resources in one or more additional pre-determined time-frequency zones to one or more mobile terminals belonging to the second group. This method may be implemented in a base station of a WiMAX system, for example. |
申请公布号 |
US8750240(B2) |
申请公布日期 |
2014.06.10 |
申请号 |
US20090561711 |
申请日期 |
2009.09.17 |
申请人 |
Telefonaktiebolaget L M Ericsson (Publ) |
发明人 |
Balachandran Kumar;Koorapaty Havish;Ramesh Rajaram |
分类号 |
H04W4/00 |
主分类号 |
H04W4/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method of allocating time-frequency resources to mobile terminals in a wireless communications system in which allocated time-frequency resources may be selectively used according to a first multiple-input multiple-output (MIMO) transmission scheme or a second MIMO transmission scheme that differs from the first MIMO transmission scheme, the method comprising, for at least a first scheduling instance:
identifying a first group of mobile terminals corresponding to the first MIMO transmission scheme and a second group of mobile terminals corresponding to the second MIMO transmission scheme; allocating time-frequency resources in a first pre-determined time-frequency zone exclusively to mobile terminals belonging to the first group; and allocating time-frequency resources in one or more additional pre-determined time-frequency zones to one or more mobile terminals belonging to the second group; wherein the first MIMO transmission scheme comprises either a space-time or a space-frequency coding transmission scheme and the second MIMO transmission scheme comprises a spatial multiplexing transmission scheme.
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地址 |
Stockholm SE |