Methods, architectures, apparatuses and systems directed to physical layer signaling in a wireless local area network (“WLAN”) system
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed physical layer signaling in a wireless local area network system are provided. Among the methods is a method that may include any of generating an extremely high throughput (EHT) physical (PHY) layer protocol data unit (PDU) (PPDU) based on a PPDU format defining a preamble comprising (i) a fixed duration universal signaling (U-SIG) field, (ii) an EHT signaling (EHT-SIG) field, and (iii) an EHT short training field (EHT-STF), wherein the U-SIG and EHT-SIG fields respectively comprise an extra signaling indicator and extra signaling to support a third feature; and transmitting the U-SIG and EHT-SIG fields on a first bandwidth segment, followed by the EHT-STF on any of the first bandwidth segment and a second bandwidth segment, followed by (iii) an EHT data field on any of the first and second bandwidth segments.
1 . A method comprising:
generating an extremely high throughput (EHT) physical (PHY) layer protocol data unit (PDU) (PPDU) comprising a preamble, wherein the preamble comprises (I) a fixed duration universal signaling (U-SIG) field, (ii) an EHT-SIG (EHT-SIG) field, and (iii) an EHT short training field (EHT-STF), wherein the EHT-SIG field comprises signaling, and the signaling supports one or more features; and
transmitting (I) at least the U-SIG and EHT-SIG fields on resources of a first bandwidth segment, and (ii) the EHT-STF on any of the resources of the first bandwidth segment and resources of a second bandwidth segment, wherein the EHT PPDU and another PPDU transmitted concurrently with the EHT PPDU align at first and second boundaries of the EHT-STF and a short training field of the other PPDU, respectively.
2 . The method of claim 1 , wherein generating the EHT PPDU comprises: generating information to null at least one subsegment of the first bandwidth segment during transmission of at least the U-SIG and EHT-SIG fields, the method comprising: applying the information to null the at least one subsegment prior to transmitting the U-SIG and EHT-SIG fields on the resources of the first bandwidth segment.
3 . The method of claim 1 , wherein generating the EHT PPDU comprises: generating a replica of at least one of the U-SIG and EHT-SIG fields, and the method comprising: transmitting the replica on resources of at least one subsegment of the first bandwidth segment during transmission of the corresponding at least one of the U-SIG and EHT-SIG fields.
4 . The method of claim 1 , wherein generating the EHT PPDU comprises:
generating a first user block field indicating a first resource unit (RU) of the first bandwidth segment allocated to a first STA; and
generating a second user block field indicating a second RU of the second bandwidth segment allocated to a second STA; and
transmitting the EHT-SIG field comprises transmitting the second user block field followed by the first user block field.
5 . The method of claim 1 , comprising transmitting the other PPDU concurrently with the EHT PPDU.
6 . The method of claim 5 , wherein at least a preamble of the other PPDU is transmitted on a subsegment of the first bandwidth segment.
7 . The method of claim 1 , wherein the EHT-SIG field and the signaling field of the other PPDU have first and second durations, respectively, the method comprising:
adjusting at least one of the first and second durations to align the EHT PPDU and the other PPDU at the first and second boundaries.
8 . The method of claim 7 , wherein adjusting at least one of the first and second durations comprises:
prepending additional training signals to the corresponding at least one of the EHT-STF and the short training field of the other PPDU.
9 . The method of claim 1 , wherein the first and second boundaries occur on an OFDM symbol boundary.
10 . The method of claim 1 , wherein at least one of:
(i) the signaling comprises user-specific information and/or common information;
(ii) the signaling is carried in an signaling (E-SIG) field of the EHT-SIG field;
(iii) the U-SIG field comprises first signaling, the first signaling supports a first set of features, the EHT-SIG field comprises second signaling, the second signaling supports a second set of features, and the method comprises determining that the one or more features are not supported by the first signaling and the second signaling;
(iv) the transmission of the U-SIG and EHT-SIG fields uses a first numerology, transmission of the EHT data field uses a second numerology, and the first and second numerologies are different;
(v) the one or more features comprise any of a hybrid automatic repeat request (HARQ) transmission, a coordinated multi-AP (C-MAP) transmission and a midamble transmission;
(vi) the one or more features comprise any of an optional feature and a feature supported by phase two release of IEEE 802.11be and not supported by phase one release of IEEE 802.11be;
(vii) the one or more features comprise non-preamble physical layer signaling;
(viii) the non-preamble physical layer signaling comprises one or more reference signals; and
(ix) the one or more reference signals comprise a midamble.
11 . A station (STA) comprising circuitry, including a transmitter, a receiver, a processor and memory, configured to:
generate an extremely high throughput (EHT) physical (PHY) layer protocol data unit (PDU) (PPDU) comprising a preamble, wherein the preamble comprises (i) a fixed duration universal signaling (U-SIG) field, (ii) an EHT-SIG (EHT-SIG) field, and (iii) an EHT short training field (EHT-STF), wherein the EHT-SIG field comprises the signaling, and wherein the signaling supports one or more features; and
transmit (i) at least the U-SIG and EHT-SIG fields on resources of a first bandwidth segment, and (ii) the EHT-STF on any of the resources of the first bandwidth segment and resources of a second bandwidth segment wherein the EHT PPDU and another PPDU transmitted concurrently with the EHT PPDU align at first and second boundaries of the EHT-STF and a short training field of the other PPDU, respectively.
12 . The STA of claim 11 , wherein the circuitry being configured to generate the EHT PPDU comprises the circuitry being configured to generate information to null at least one subsegment of the first bandwidth segment during transmission of at least the U-SIG and EHT-SIG fields, and wherein the circuitry is configured to apply the information to null the at least one subsegment prior to transmitting the U-SIG and EHT-SIG fields on the resources of the first bandwidth segment.
13 . The STA of claim 11 , wherein the circuitry being configured to generate the EHT PPDU comprises the circuitry being configured to generate a replica of at least one of the U-SIG and EHT-SIG, and wherein the circuitry is configured to transmit the replica on resources of at least one subsegment of the first bandwidth segment during transmission of the corresponding at least one of the U-SIG and EHT-SIG fields.
14 . The STA of claim 11 , wherein
the circuitry being configured to generate the EHT PPDU comprises the circuitry being configured to:
generate a first user block field indicating a first resource unit (RU) of the first bandwidth segment allocated to a first STA; and
generate a second user block field indicating a second RU of the second bandwidth segment allocated to a second STA; and
the circuitry being configured to transmit the EHT-SIG field comprises the circuitry being configured to transmit the second user block field followed by the first user block field.
15 . The STA of the claims 11 , wherein the circuitry is configured to transmit the other PPDU concurrently with the EHT PPDU.
16 . The STA of claim 15 , wherein at least a preamble of the other PPDU is transmitted on a subsegment of the first bandwidth segment.
17 . The STA of claim 11 , wherein the EHT-SIG field and the signaling field of the other PPDU have first and second durations, respectively, and wherein the circuitry is configured to: adjust at least one of the first and second durations to align the EHT PPDU and the other PPDU at the first and second boundaries.
18 . The STA of claim 17 , wherein the circuitry being configured to adjust at least one of the first and second durations comprises the circuitry being configured to prepend additional training signals to the corresponding at least one of the EHT-STF and the short training field of the other PPDU.
19 . The STA of claim 11 , wherein the first and second boundaries occur on an OFDM symbol boundary.
20 . The STA of claim 11 , wherein at least one of:
(i) the signaling comprises user-specific information and/or common information;
(ii) the signaling is carried in an signaling (E-SIG) field of the EHT-SIG field;
(iii) the U-SIG field comprises first signaling, the first signaling supports a first set of features, the EHT-SIG field comprises second signaling, the second signaling supports a second set of features, and the circuitry is configured to determine that the one or more features are not supported by the first signaling and the second signaling;
(iv) the transmission of the U-SIG and EHT-SIG fields uses a first numerology, transmission of the EHT data field uses a second numerology, and the first and second numerologies are different;
(v) the one or more features comprise any of a hybrid automatic repeat request (HARQ) transmission, a coordinated multi-AP (C-MAP) transmission and a midamble transmission;
(vi) the one or more features comprise any of an optional feature and a feature supported by phase two release of IEEE 802.11be and not supported by phase one release of IEEE 802.11be;
(vii) the one or more features comprise non-preamble physical layer signaling;
(viii) the non-preamble physical layer signaling comprises one or more reference signals;
(ix) the one or more reference signals comprise a midamble; and
(x) the STA comprises as an access point.