When the VHT-SIG-A STBC field is set to 1, a symbol operation shall occur between the constellation mapper and the spatial mapper as defined in this subclause. 438 Hart, Brian 22.3.11.8.3 127 43 TR In d_{k,1,m}, the As in comment 1 should be a i, 7x in this clause Proposed resolution: Accept in principle Discussion: Implement as per commenter, and also add a further improvement. It is a curious thing that in 11n, and again in 11ac, \tilde(d)k,i,n actually refers to two quantities: the 2i-1-th and 2i-th STSs. This ambiguity can be avoided by some very simple notational changes, and then we have a more solid mathematical description of the transform from NSS to NSTS. Change 22.3.11.8.3 Space-time block coding If STBC is applied, the stream of complex numbers, = 0 = 1 NSS; = 0 dk,,n; k NSD-1; i n NSYM-1, … … … generated by the constellation mapper, is the input of the STBC encoder, which produces as output the stream of complex numbers For given values of \tilde(d)k,,n; = 0 = 1 = 0 k k … NSD-1; i … NSS; n … NSYM-1. STBC processing operates on the complex modulation symbols in sequential pairs of OFDM and i, symbols so that the value of depend on \tilde(d)k,,2m and and \tilde(d)k,,2m+1 also depend on dk,,2m dk,,2m+1 and as defined in Table 22-16. dk,,2m dk,,2m+1, Error! No text of specified style in document.--Constellation mapper output to spatial mapper input for STBC NSTS NSS iSTS 1 2 1 2 1 2 4 2 3 4 1 2 3 6 3 4 5 6 1 2 3 4 8 4 5 6 7 8 If STBC is not applied, and . STBC is applied, an odd number of space time streams per user is not allowed, and . NOTE--When
When the VHT-SIG-A STBC field is set to 1, a symbol operation shall occur between the constellation mapper and the spatial mapper as defined in this subclause. 438 Hart, Brian 22.3.11.8.3 127 43 TR In d_{k,1,m}, the 1 should be a i, 7x in this clause As in comment Proposed resolution: Accept in principle Discussion: Implement as per commenter, and also add a further improvement. It is a curious thing that in 11n, and again in 11ac, \tilde(d)k,i,n actually refers to two quantities: the 2i-1-th and 2i-th STSs. This ambiguity can be avoided by some very simple notational changes, and then we have a more solid mathematical description of the transform from NSS to NSTS. Change 22.3.11.8.3 Space-time block coding If STBC is applied, the stream of complex numbers, dk,,n; k = 0 … NSD-1; i = 1 … NSS; n = 0 … NSYM-1, generated by the constellation mapper, is the input of the STBC encoder, which produces as output the stream of complex numbers \tilde(d)k,,n; k = 0 … NSD-1; i = 1 … NSS; n = 0 … NSYM-1. For given values of k and i, STBC processing operates on the complex modulation symbols in sequential pairs of OFDM symbols so that the value of \tilde(d)k,,2m depend on dk,,2m and dk,,2m+1 and \tilde(d)k,,2m+1 also depend on dk,,2m and dk,,2m+1, as defined in Table 22-16. Error! No text of specified style in document.--Constellation mapper output to spatial mapper input for STBC NSTS NSS iSTS 2 1 1 2 4 2 1 2 3 4 6 3 1 2 3 4 5 6 8 4 1 2 3 4 5 6 7 8 If STBC is not applied, and . NOTE--When STBC is applied, an odd number of space time streams per user is not allowed, and .