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Method For Transmitting He-Ltf Sequence And Apparatus
Patent No. EP3937445 (titled "Method For Transmitting He-Ltf Sequence And Apparatus") was filed by Huawei on Aug 26, 2016. The application was issued on Jun 7, 2023.
Patent Summary
Reducing peak-to-average power ratio (PAPR) in wireless local area network (WLAN) transmissions by optimizing the long training field (LTF) sequence used for channel estimation in orthogonal frequency division multiple access (OFDMA) WLAN systems like WiFi 6 (802.11ax). The method involves generating the LTF sequence specifically for the WLAN tone plan and resource unit (RU) sizes. This reduces PAPR compared to reusing sequences from older OFDM systems. The LTF is generated by selecting subcarriers corresponding to scheduled resource blocks instead of padding with zeros. This provides a better match between the LTF and data subcarriers.
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Patent Oppositions (2)
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Dossier Documents
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Date
Description
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EP3937445
- Application Number
- EP21165745A
- Filing Date
- Aug 26, 2016
- Status
- Granted And Under Opposition
- May 5, 2023
- Publication Date
- Jun 7, 2023
- External Links
- Slate, EP3937445B1, Google Patents