ENHANCED SIGNALING FOR UNEQUAL MODULATION AND MODULATION AND CODING SCHEMES IN SINGLE USER WIRELESS TRANSMISSIONS
This disclosure describes systems, methods, and devices for signaling multiple modulation and coding schemes for a single user. A device may generate a common field of an ultra-high reliability signal (UHR-SIG) content channel field, the common field including signaling for station devices; generate a number of spatial streams (NSS) subfield of a user specific field of the UHR-SIG content channel field, the user specific field addressed to a first station device of the multiple station devices; generate a 6-bit modulation and coding scheme (MCS) subfield of the user specific field, wherein the 6-bit MCS subfield maps, based on a number of spatial streams signaled by the NSS subfield, to one or more MCSs assigned to the first station device; generate a frame including the UHR-SIG content channel field, wherein a user field of the user specific field includes at least 22 bits including the MCS subfield; and send the frame.
1 . An apparatus of a device for signaling multiple modulation and coding schemes for a single user, the apparatus comprising processing circuitry coupled to storage, the processing circuitry configured to:
generate a common field of an ultra-high reliability (UHR) signal (UHR-SIG) content channel field, wherein the common field comprises signaling for multiple station devices;
generate a number of spatial streams (NSS) subfield of a user specific field of the UHR-SIG content channel field, wherein the user specific field is addressed to a first station device of the multiple station devices;
generate a 6-bit modulation and coding scheme (MCS) subfield of the user specific field, wherein the 6-bit MCS subfield maps, based on a number of spatial streams signaled by the NSS subfield, to one or more MCSs assigned to the first station device;
generate a frame comprising the UHR-SIG content channel field, wherein a user field of the user specific field comprises at least 22 bits comprising the MCS subfield; and
cause to send the frame.
2 . The apparatus of claim 1 , wherein the user field is a 22-bit user field comprising an 11-bit identifier of the first station device, the 6-bit MCS subfield, the NSS subfield, and a 1-bit beamforming subfield.
3 . The apparatus of claim 1 , wherein the user field is a 24-bit user field comprising an 11-bit identifier of the first station device, the 6-bit MCS subfield, a reserved bit, the NSS subfield, a 1-bit beamforming subfield, and a 1-bit coding subfield, and wherein the common field is a 20-bit common field.
4 . The apparatus of claim 1 , wherein the common field is an 18-bit common field comprising a 2-bit disregard subfield, and wherein the user field is a 24-bit user field comprising an 11-bit identifier of the first station device, the 6-bit MCS subfield, a reserved bit, the NSS subfield, a 1-bit beamforming subfield, and a 1-bit coding subfield.
5 . The apparatus of claim 1 , wherein the number of spatial stream is two, and wherein the 6-bit MCS subfield maps to the one or more MCSs assigned to the first station device based on a first mapping scheme signaled by the NSS.
6 . The apparatus of claim 5 , wherein the first mapping scheme consists of 41 MCSs.
7 . The apparatus of claim 1 , wherein the number of spatial stream is three or four, and wherein the 6-bit MCS subfield maps to the one or more MCSs assigned to the first station device based on a second mapping scheme signaled by the NSS.
8 . The apparatus of claim 7 , wherein the second mapping scheme consists of 51 MCSs.
9 . The apparatus of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals comprising the frame.
10 . The apparatus of claim 9 , further comprising one or more antennas coupled to the transceiver.
11 . A non-transitory computer-readable storage medium comprising instructions to cause processing circuitry of a device for signaling multiple modulation and coding schemes for a single user, upon execution of the instructions by the processing circuitry, to:
generate a common field of an ultra-high reliability (UHR) signal (UHR-SIG) content channel field, wherein the common field comprises signaling for multiple station devices;
generate a number of spatial streams (NSS) subfield of a user specific field of the UHR-SIG content channel field, wherein the user specific field is addressed to a first station device of the multiple station devices;
generate a 6-bit modulation and coding scheme (MCS) subfield of the user specific field, wherein the 6-bit MCS subfield maps, based on a number of spatial streams signaled by the NSS subfield, to one or more MCSs assigned to the first station device;
generate a frame comprising the UHR-SIG content channel field, wherein a user field of the user specific field comprises at least 22 bits comprising the MCS subfield; and
cause to send the frame.
12 . The non-transitory computer-readable medium of claim 11 , wherein the user field is a 22-bit user field comprising an 11-bit identifier of the first station device, the 6-bit MCS subfield, the NSS subfield, and a 1-bit beamforming subfield.
13 . The non-transitory computer-readable medium of claim 11 , wherein the user field is a 24-bit user field comprising an 11-bit identifier of the first station device, the 6-bit MCS subfield, a reserved bit, the NSS subfield, a 1-bit beamforming subfield, and a 1-bit coding subfield, and wherein the common field is a 20-bit common field.
14 . The non-transitory computer-readable medium of claim 11 , wherein the common field is an 18-bit common field comprising a 2-bit disregard subfield, and wherein the user field is a 24-bit user field comprising an 11-bit identifier of the first station device, the 6-bit MCS subfield, a reserved bit, the NSS subfield, a 1-bit beamforming subfield, and a 1-bit coding subfield.
15 . The non-transitory computer-readable medium of claim 11 , wherein the number of spatial stream is two, wherein the 6-bit MCS subfield maps to the one or more MCSs assigned to the first station device based on a first mapping scheme signaled by the NSS, and wherein the first mapping scheme consists of 41 MCSs.
16 . The non-transitory computer-readable medium of claim 11 , wherein the number of spatial stream is three or four, and wherein the 6-bit MCS subfield maps to the one or more MCSs assigned to the first station device based on a second mapping scheme signaled by the NSS and wherein the second mapping scheme consists of 51 MCSs.
17 . A method for signaling multiple modulation and coding schemes for a single user, the method comprising:
generating, by processing circuitry of an access point device, a common field of an ultra-high reliability (UHR) signal (UHR-SIG) content channel field, wherein the common field comprises signaling for multiple station devices;
generating, by the processing circuitry, a number of spatial streams (NSS) subfield of a user specific field of the UHR-SIG content channel field, wherein the user specific field is addressed to a first station device of the multiple station devices;
generating, by the processing circuitry, a 6-bit modulation and coding scheme (MCS) subfield of the user specific field, wherein the 6-bit MCS subfield maps, based on a number of spatial streams signaled by the NSS subfield, to one or more MCSs assigned to the first station device;
generating, by the processing circuitry, a frame comprising the UHR-SIG content channel field, wherein a user field of the user specific field comprises at least 22 bits comprising the MCS subfield; and
causing to send, by the processing circuitry, the frame.
18 . The method of claim 17 , wherein the user field is a 22-bit user field comprising an 11-bit identifier of the first station device, the 6-bit MCS subfield, the NSS subfield, and a 1-bit beamforming subfield.
19 . The method of claim 17 , wherein the user field is a 24-bit user field comprising an 11-bit identifier of the first station device, the 6-bit MCS subfield, a reserved bit, the NSS subfield, a 1-bit beamforming subfield, and a 1-bit coding subfield, and wherein the common field is a 20-bit common field.
20 . The method of claim 17 , wherein the common field is an 18-bit common field comprising a 2-bit disregard subfield, and wherein the user field is a 24-bit user field comprising an 11-bit identifier of the first station device, the 6-bit MCS subfield, a reserved bit, the NSS subfield, a 1-bit beamforming subfield, and a 1-bit coding subfield.