Control information for multi-user transmissions in WLAN systems
A method is provided. The method includes transmitting, by an access point (AP), a physical layer protocol data unit (PPDU) comprising a plurality of resource units (RUs), each comprising a number of one or more of subcarriers or tones upon which one or more modulated signals are positioned, each of the plurality of RUs sharing a common frequency and mirroring symmetrically or conjugate symmetrically, information between each of the plurality of RUs with respect to a DC tone.
1 . A method, comprising:
transmitting, by an access point (AP), a physical layer protocol data unit (PPDU) comprising a plurality of resource units (RUs), each comprising a number of one or more of subcarriers or tones upon which one or more data modulated signals are positioned, each of the plurality of RUs sharing a common frequency and including portions that are mirrored symmetrically or conjugate symmetrically, information between each of the subcarriers that comprise the plurality of RUs with respect to a center tone included in each RU, each of the mirrored portions are scrambled with a different sequence and the plurality of RUs are transmitted simultaneously.
2 . The method of claim 1 , wherein the PPDU comprises a preamble and a data field, wherein the data field comprises the plurality of RUs.
3 . The method of claim 1 , wherein one or more RUs of the plurality of RUs are transmitted to a same station (STA).
4 . The method of claim 1 , comprising:
applying one or more RUs of the plurality of RUs to a trigger frame.
5 . The method of claim 1 , comprising:
applying one or more RUs of the plurality of RUs to a beacon frame.
6 . The method of claim 1 , comprising:
duplicating one or more RUs of the plurality of RUs, wherein each duplicated RU is multiplied by a different scrambling sequence.
7 . The method of claim 6 , wherein duplicated RUs are one of continuous or non-continuous in frequency.
8 . The method of claim 1 , wherein a channel bandwidth of frames including RUs allocated to the PPDU is equal to one of 80 MHz or 160 MHz.
9 . The method of claim 1 , wherein a signaling of a multi-resource signal transmission is conveyed in one of a common information field or a user-specific information field of a signaling field.
10 . The method of claim 1 , comprising:
assigning a continuous or non-continuous RU comprising two or more duplicated RUs to an STA using RUs, wherein a receiving STA allows any size of received RU.
11 . The method of claim 1 , wherein one of the mirrored portions is transmitted without modification, wherein the other one of the mirrored portions is transmitted using a scrambling sequence.
12 . An access point (AP), comprising:
a processor; and
a memory, coupled to the processor, comprising instructions that when executed by the processor are configured to:
transmit a physical layer protocol data unit (PPDU) comprising a plurality of resource units (RUs), each comprising a number of one or more of subcarriers or tones upon which one or more data modulated signals are positioned, each of the plurality of RUs share a common frequency and include portions that are mirrored symmetrically or conjugate symmetrically, information between each of the subcarriers that comprise the plurality of RUs with respect to a center tone are included in each RU, each of the mirrored portions are scrambled with a different sequence and the plurality of RUs are transmitted simultaneously.
13 . The AP of claim 12 , wherein the PPDU comprises a preamble and a data field, wherein the data field comprises the plurality of RUs.
14 . The AP of claim 12 , wherein the processor is configured to transmit one or more RUs of the plurality of RUs to a same station (STA).
15 . The AP of claim 12 , wherein the processor is configured to apply one or more RUs of the plurality of RUs to a trigger frame.
16 . The AP of claim 12 , wherein the processor is configured to apply one or more RUs of the plurality of RUs to a beacon frame.
17 . The AP of claim 12 , wherein the processor is configured to duplicate one or more RUs of the plurality of RUs, wherein each duplicated RU is multiplied by a different scrambling sequence.
18 . The AP of claim 17 , wherein duplicated RUs are one of continuous or non-continuous in frequency.
19 . The AP of claim 12 , wherein a channel bandwidth of frames including RUs allocated to the PPDU is equal to one of 80 MHz or 160 MHz.
20 . The AP of claim 12 , wherein a signaling of a multi-resource signal transmission is conveyed in one of a common information field or a user-specific information field of a signaling field.
21 . The AP of claim 12 , wherein the processor is configured to assign a continuous or non-continuous RU comprising two or more duplicated RUs to an STA using RUs, wherein a receiving STA allows any size of received RU.
22 . The AP of claim 12 , wherein one of the mirrored portions is transmitted without modification, wherein the other one of the mirrored portions is transmitted using a scrambling sequence.
23 . A non-transitory computer readable storage medium comprising instructions, that when read by a processor, cause the processor to perform:
transmitting, by an access point (AP), a physical layer protocol data unit (PPDU) comprising a plurality of resource units (RUs), each comprising a number of one or more of subcarriers or tones upon which one or more data modulated signals are positioned, each of the plurality of RUs sharing a common frequency and include portions that are mirrored symmetrically or conjugate symmetrically, information between each of the subcarriers that comprise the plurality of RUs with respect to a center tone included in each RU, each of the mirrored portions are scrambled with a different sequence and the plurality of RUs are transmitted simultaneously.
24 . The non-transitory computer readable storage medium of claim 23 , wherein the PPDU comprises a preamble and a data field, wherein the data field comprises the plurality of RUs.
25 . The non-transitory computer readable storage medium of claim 23 , wherein one or more RUs of the plurality of RUs are transmitted to a same station (STA).
26 . The non-transitory computer readable storage medium of claim 23 , wherein the instructions cause the processor to perform:
applying one or more RUs of the plurality of RUs to a trigger frame.
27 . The non-transitory computer readable storage medium of claim 23 , wherein the instructions cause the processor to perform:
applying one or more RUs of the plurality of RUs to a beacon frame.
28 . The non-transitory computer readable storage medium of claim 23 , wherein the instructions cause the processor to perform:
duplicating one or more RUs of the plurality of RUs, wherein each duplicated RU is multiplied by a different scrambling sequence.
29 . The non-transitory computer readable storage medium of claim 28 , wherein duplicated RUs are one of continuous or non-continuous in frequency.
30 . The non-transitory computer readable storage medium of claim 23 , wherein a channel bandwidth of frames including RUs allocated to the PPDU is equal to one of 80 MHz or 160 MHz.
31 . The non-transitory computer readable storage medium of claim 23 , wherein a signaling of a multi-resource signal transmission is conveyed in one of a common information field or a user-specific information field of a signaling field.
32 . The non-transitory computer readable storage medium of claim 23 , wherein the instructions cause the processor to perform:
assigning a continuous or non-continuous RU comprising two or more duplicated RUs to an STA using RUs, wherein a receiving STA allows any size of received RU.
33 . The non-transitory computer readable storage medium of claim 23 , wherein one of the mirrored portions is transmitted without modification, wherein the other one of the mirrored portions is transmitted using a scrambling sequence.