14203 485 40 HE-SIG-A field consists of as in comment Revised. many fields as shown in Table 28-18. Bandwidth 11ax editor, please see subfield should be modified the discussion for with Bandwidth field instructions of CIDs 13765, 14202, 14203, 14204 and 14205 in doc IEEE 14204 485 43 HE-SIG-A field consists of as in comment Revised. many fields as shown in Table 28-18. Bandwidth 11ax editor, please see subfield should be modified the discussion for with Bandwidth field instructions of CIDs 13765, 14202, 14203, 14204 and 14205 in doc IEEE 14205 485 44 HE-SIG-A field consists of as in comment Revised. many fields as shown in Table 28-18. Bandwidth 11ax editor, please see subfield should be modified the discussion for with Bandwidth field instructions of CIDs 13765, 14202, 14203, 14204 and 14205 in doc IEEE 14320 494 12 In draft 2.0, 28.3.11.16 Please evaluate and Rejected. Midamble is added to suggested a support long packets in fast reasonable long Midamble is an optional fading environment, i.e. packets for EVM feature and it is not insert midamble every 10 or test, which essential to the EVM 20 OFDM symbol. However eventually will tests. In the 11ax spec, the EVM measurement guarantee a good the following sentence is method is not updated throughput in real added to exclude the accordingly in 28.3.18.4.4 operation. Maybe we EVM tests with Transmitter modulation should use 32 midamble. accuracy (EVM) test. OFDM for all cases, Specifically, EVM test only which will at least requests 16 OFDM symbol include one for user occupies more than midamble. Or if 26 tones. Good long packet chipset companies EVM performance is has a more practical essential for good number that will throughput. We need to review system increase the number of performance in long OFDM symbol for EVM test. packets. Discussions for CID 11897:
14203 485 40 HE-SIG-A field consists of many fields as shown in Table 28-18. Bandwidth subfield should be modified with Bandwidth field as in comment Revised. 11ax editor, please see the discussion for instructions of CIDs 13765, 14202, 14203, 14204 and 14205 in doc IEEE 14204 485 43 HE-SIG-A field consists of many fields as shown in Table 28-18. Bandwidth subfield should be modified with Bandwidth field as in comment Revised. 11ax editor, please see the discussion for instructions of CIDs 13765, 14202, 14203, 14204 and 14205 in doc IEEE 14205 485 44 HE-SIG-A field consists of many fields as shown in Table 28-18. Bandwidth subfield should be modified with Bandwidth field as in comment Revised. 11ax editor, please see the discussion for instructions of CIDs 13765, 14202, 14203, 14204 and 14205 in doc IEEE 14320 494 12 In draft 2.0, 28.3.11.16 Midamble is added to support long packets in fast fading environment, i.e. insert midamble every 10 or 20 OFDM symbol. However the EVM measurement method is not updated accordingly in 28.3.18.4.4 Transmitter modulation accuracy (EVM) test. Specifically, EVM test only requests 16 OFDM symbol for user occupies more than 26 tones. Good long packet EVM performance is essential for good throughput. We need to increase the number of OFDM symbol for EVM test. Please evaluate and suggested a reasonable long packets for EVM test, which eventually will guarantee a good throughput in real operation. Maybe we should use 32 OFDM for all cases, which will at least include one midamble. Or if chipset companies has a more practical number that will review system performance in long packets. Rejected. Midamble is an optional feature and it is not essential to the EVM tests. In the 11ax spec, the following sentence is added to exclude the EVM tests with midamble. Discussions for CID 11897:
11-18-0475-00-00ax-lb230-comment-resolution-on-cids-for-28-3-part-2.docx