发明名称 |
Soft handoff in OFDMA system |
摘要 |
Soft handoff in an OFDMA system is disclosed. If the pilot signal strength for a base station exceeds the defined threshold, the base station is added to an active set list. Subcarriers in a plurality of orthogonal frequency division multiplexing (OFDM) symbols are divided and allocated into subchannels. The OFDM symbols are divided and multiplexed. A soft handoff zone with a first dimension of the subchannels and a second dimension of the divided and multiplexed OFDM symbols is defined. The soft handoff zone has subcarriers with a subchannel definition, for example, an identical permutation. |
申请公布号 |
US8446879(B2) |
申请公布日期 |
2013.05.21 |
申请号 |
US201213551726 |
申请日期 |
2012.07.18 |
申请人 |
MA JIANGLEI;TONG WEN;JIA MING;ZHU PEIYING;FONG MO-HAN;ZHANG HANG;APPLE INC. |
发明人 |
MA JIANGLEI;TONG WEN;JIA MING;ZHU PEIYING;FONG MO-HAN;ZHANG HANG |
分类号 |
H04W36/18;H04B7/02;H04B7/06;H04J11/00 |
主分类号 |
H04W36/18 |
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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