Systems and methods for generating preamble symbols in communication systems
US-2016330006-A1 · Nov 10, 2016 · US
Method for transmitting HE-LTF sequence and apparatus
US10645687B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10645687-B2 |
| Application number | US-201815905567-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 26, 2018 |
| Priority date | Aug 26, 2015 |
| Publication date | May 5, 2020 |
| Grant date | May 5, 2020 |
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- Title
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Abstract
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Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for sending a long training sequence in a wireless local area network, the method comprising: obtaining, by an apparatus, according to a transmission bandwidth, an HE-LTF sequence corresponding to the transmission bandwidth; and according to a size and a location of a resource block (RU) allocated to a station, mapping a sequence segment in the HE-LTF sequence to subcarriers in the allocated RU wherein the sequence segement's location correpsonds to the location of the allocated RU, and sending the sequence segment; wherein a 4× HE-LTF sequence in an 80 MHz bandwidth transmission is HE-LTF 4x (−500:500), the HE-LTF 4x (−500:400)comprises values on subcarriers with indexes −500:500, HE - LTF 4 × ( - 500 : 500 ) = [ + 1 , + 1 , - 1 , + 1 , - 1 , + 1 , - 1 , - 1 , - 1 , + 1 , - 1 , - 1 , - 1 , + 1 , + 1 , - 1 , + 1 , + 1 , + 1 , + 1 , + 1 , - 1 , - 1 , + 1 , + 1 , + 1 , + 1 , - 1 , + 1 , - 1 , + 1 , - 1 , - 1 , + 1 , + 1 , - 1 , + 1 , + 1 , + 1 , - 1 , - 1 , + 1 , - 1 , - 1 , - 1 , - 1 , + 1 , + 1 , + 1 , - 1 , - 1 , - 1 ,
Assignees
Inventors
Classifications
- H04L27/2614Primary
Peak power aspects · CPC title
Negotiating wireless communication parameters · CPC title
Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title
WLAN [Wireless Local Area Networks] · CPC title
Reduction thereof by selection of pilot symbols · CPC title
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- What does patent US10645687B2 cover?
- Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.
- Who is the assignee on this patent?
- Huawei Tech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04L27/2614. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 05 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).