发明名称 |
METHOD AND APPARATUS FOR COMMUNICATION IN SYSTEM EMPLOYING DIFFERING TRANSMISSION PROTOCOLS |
摘要 |
PROBLEM TO BE SOLVED: To provide a method and apparatus for channel estimation in a system employing differing transmission protocols as broadcast/multicast and unicast protocols.SOLUTION: The number of pilot tones used for a broadcast transmission is greater than the number of pilot tones used for a unicast transmission. The channel estimation may be significantly degraded when a symbol from a broadcast transmission slot is adjacent to a symbol from a unicast transmission slot. Therefore, it is determined whether a first time slot of one transmission protocol (multicast slot) is adjacent to a second time slot of another transmission protocol (unicast slot). The pilot power and/or the number of the pilot sub-carriers are/is increased for the edge symbol of the multicast slot for purposes of channel estimation using the edge symbol. |
申请公布号 |
JP2013258724(A) |
申请公布日期 |
2013.12.26 |
申请号 |
JP20130150978 |
申请日期 |
2013.07.19 |
申请人 |
QUALCOMM INC |
发明人 |
MANTRAVADI ASHOK;MALLADI DURGA PRASAD;AGRAWAL AVNEESH;ANASTASIOS STAMOULIS |
分类号 |
H04W52/04;H04J1/00;H04J11/00;H04W4/06;H04W28/18;H04W52/32 |
主分类号 |
H04W52/04 |
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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