发明名称 |
OFDMA contention-based random access channel design for mobile wireless systems |
摘要 |
Short spreading is used within a random access channel in an OFDM based network to spread data for transmission through the channel. The resource allocation of the random access channel is divided into a number of resource blocks in frequency, time, or both frequency and time. Each resource block has a dimension that is only a portion of the overall size of the resource allocation. During contention, a randomly selected short spreading code may be used to provide data spreading within a randomly selected resource block.
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申请公布号 |
US2009274105(A1) |
申请公布日期 |
2009.11.05 |
申请号 |
US20080151140 |
申请日期 |
2008.05.02 |
申请人 |
CHOI YANG-SEOK;VENKATACHALAM MUTHAIAH;YANG XIANGYING;PAPATHANASSIOU APOSTOLOS |
发明人 |
CHOI YANG-SEOK;VENKATACHALAM MUTHAIAH;YANG XIANGYING;PAPATHANASSIOU APOSTOLOS |
分类号 |
H04B7/208 |
主分类号 |
H04B7/208 |
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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