Implementation of orthogonal time frequency space modulation for wireless communications
US-12177057-B2 · Dec 24, 2024 · US
Methods and arrangements for phase tracking for multi-mode operation in wireless networks
US9008167B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9008167-B2 |
| Application number | US-201213730996-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 29, 2012 |
| Priority date | Dec 29, 2012 |
| Publication date | Apr 14, 2015 |
| Grant date | Apr 14, 2015 |
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Abstract
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Logic may comprise a single phase tracking implementation for all bandwidths of operation and the logic may adaptively change pre-defined and stored track parameters if the receiving packet is 1 MHz bandwidth. Logic may detect a packet and long training fields before performing a 1 MHz classification. Logic may auto-detect 1 MHz bandwidth transmissions by a property of the long training field sequences. Logic may auto-detect 1 MHz bandwidth transmissions by detecting a Binary Phase Shift Keying (BPSK) modulated first signal field symbol rather than the Quadrature Binary Phase Shift Keying (QBPSK) associated with the 2 MHz or greater bandwidth transmissions. Logic may perform an algorithm to determine an estimated phase correction value for a given orthogonal frequency division multiplexing symbol and several embodiments integrate this value with an intercept multiplier that may be 0.2 for 1 MHz transmissions and, e.g., 0.5 for 2 MHz or greater bandwidth communication.
First claim
Opening claim text (preview).
What is claimed is: 1. A method to multi-mode phase track with shifting pilot tones, the method comprising: receiving an orthogonal frequency division multiplexing (OFDM) transmission of a packet with pilot tones shifting locations between OFDM symbols; processing a preamble of the packet to determine whether the OFDM transmission comprises a one megahertz bandwidth or comprises a bandwidth of two megahertz or greater; setting a track intercept multiplier value to 0.2 if the O…
Assignees
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Classifications
- H04L27/2647Primary
Electricity · mapped topic
- H04L27/2662Primary
Electricity · mapped topic
Electricity · mapped topic
- H04L25/0204Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9008167B2 cover?
- Logic may comprise a single phase tracking implementation for all bandwidths of operation and the logic may adaptively change pre-defined and stored track parameters if the receiving packet is 1 MHz bandwidth. Logic may detect a packet and long training fields before performing a 1 MHz classification. Logic may auto-detect 1 MHz bandwidth transmissions by a property of the long training field s…
- Who is the assignee on this patent?
- Intel Corp
- What technology area does this patent fall under?
- Primary CPC classification H04L27/2647. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 14 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).