发明名称 |
UPSTREAM PILOT STRUCTURE IN POINT TO MULTIPOINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM |
摘要 |
A central access network unit comprising a processor configured to assign a plurality of upstream training blocks from an upstream OFDM symbol to a plurality of downstream network units, wherein the OFDM symbol comprises a plurality of pilot subcarriers equally spaced across an upstream RF spectrum in a pre-determined time interval, and wherein each upstream training block comprises a different subset of the pilot subcarriers that are non-consecutive and situated across the upstream RF spectrum, and generate one or more messages comprising assignments of the upstream training blocks, and a transmitter coupled to the processor and configured to transmit the messages to the plurality of downstream network units via a network, wherein the messages instruct at least one of the plurality of downstream network units to transmit a modulated pre-determined sequence at the pilot subcarriers corresponding to the upstream training block assigned to the downstream network unit. |
申请公布号 |
WO2014164762(A1) |
申请公布日期 |
2014.10.09 |
申请号 |
WO2014US23410 |
申请日期 |
2014.03.11 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD.;FUTUREWEI TECHNOLOGIES INC. |
发明人 |
ZHANG, XIAOFENG;OU, YANGTAO;PAN, DAO;SI, XIAOSHU;RAHMAN, SYED |
分类号 |
H04L5/00;H04L27/26 |
主分类号 |
H04L5/00 |
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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