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Dear Chong, Nancy,
I have had a different understanding of the second graph. What I suggested as a baseband implementation, besides the bulky down-conversion graph, is enclosed.
I have removed the radio-specific parts and the bias addition point before the OFE because this is different at least in HHI OFEs which are always AC coupled. The bias settings are not usually accessible. I have left the DC block in in case some alien OFEs would outputs any spurious DC signals. In my personal opinion, one could leave the bias and DC block out of the entire chain. The RF folks will ask us as experts anyway in case they want to use an OFE. It should always be AC-coupled, both ways.
Please let me know if the enclosed figure is fine with you.
Best regards - Volker
Von: ** STDS-802-11-TGbb -- Light Communication Task Group** <STDS-802-11-TGBB@xxxxxxxxxxxxxxxxx> im Auftrag von Chong Han <chong.han@xxxxxxxxxxxx>
Gesendet: Montag, 25. Oktober 2021 16:19:51 An: STDS-802-11-TGBB@xxxxxxxxxxxxxxxxx Betreff: Re: [STDS-802-11-TGBB] [EXTERNAL] [STDS-802-11-TGBB] doc. 11-21/1688r2 uploaded Dear all, The document is updated to version 3 with the figure changed. The current figure contains both the modifications for LC and the original figure from Fig. 17-12.
Link:
https://mentor.ieee.org/802.11/dcn/21/11-21-1688-03-00bb-proposed-changes-for-tgbb-draft-0-6.docx Regards, Chong From: ** STDS-802-11-TGbb -- Light Communication Task Group** <STDS-802-11-TGBB@xxxxxxxxxxxxxxxxx>
On Behalf Of Chong Han CAUTION: This email originated from
outside of pureLiFi. Do not click links or open attachments unless you recognize the sender and know for certain that the content is safe. Dear all, I’ve uploaded the doc. 11-21/1688r2 which has the updated 40 MHz channel in the 2.4 GHz band mapping, the Figure 1 and its description, and the subclauses moved to the general PHY section.
The link is here:
https://mentor.ieee.org/802.11/dcn/21/11-21-1688-02-00bb-proposed-changes-for-tgbb-draft-0-6.docx Regards, Chong To unsubscribe from the STDS-802-11-TGBB list, click the following link:
https://listserv.ieee.org/cgi-bin/wa?SUBED1=STDS-802-11-TGBB&A=1 To unsubscribe from the STDS-802-11-TGBB list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=STDS-802-11-TGBB&A=1 To unsubscribe from the STDS-802-11-TGBB list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=STDS-802-11-TGBB&A=1 |
Attachment:
Drawing in baseband_Tx_Rx_chain.pdf
Description: Drawing in baseband_Tx_Rx_chain.pdf