Extended long range wireless packet design
This disclosure provides methods, components, devices and systems for extended long range wireless packet design. Some aspects more specifically relate to increasing a data rate, a coverage range, or both for extended long range (ELR) wireless communications systems by updating an ELR wireless packet design. A wireless communications device, such as a wireless station (STA), may transmit an ELR wireless packet to another wireless communications device, such as a wireless access point (AP), with updated preamble fields, boosted transmit power for one or more preamble fields, and/or additional repetitions for one or more preamble fields. Additionally, or alternatively, the wireless communications device may transmit an ELR wireless packet using a narrow bandwidth to increase coverage range for an ELR wireless communications system.
1 . An apparatus for wireless communications at a wireless station, comprising:
a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the apparatus to:
receive an indication to transmit an extended long range (ELR) wireless packet comprising a preamble and a data field, the ELR wireless packet associated with a frequency band that is at least 2.4 gigahertz or higher in a frequency domain and associated with orthogonal frequency division (OFDM) communications; and
transmit, in accordance with the indication and a data rate associated with ELR communications, the ELR wireless packet including the preamble and the data field, the preamble including single legacy short training field (STF) (L-STF), a single legacy long training field (LTF) (L-LTF), a single legacy signal (SIG) field (L-SIG), a single repeat of the L-SIG field (RL-SIG), a single universal SIG field (U-SIG), a single ELR STF (ELR-STF), one or more ELR LTFs (ELR-LTFs), and an ELR SIG field (ELR-SIG) that is repeated 4 times in the time domain, the data field also being repeated 4 times in the time domain, the data rate being less than a minimum data rate used for a legacy version of an Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, and the L-STF and L-LTF being transmitted with a higher power than that used for the other fields of the preamble.
2 . The apparatus of claim 1 , wherein the processing system is further configured to cause the apparatus to:
transmit a request to transmit the ELR wireless packet, the indication being received in response to transmitting the request.
3 . The apparatus of claim 1 , wherein the processing system is further configured to cause the apparatus to:
transmit a request to transmit the ELR wireless packet, a duration of the request associated at least in part with the ELR communications; and
receive the indication in response to the request, the indication comprising a trigger frame that indicates protection for the ELR wireless packet, the extended long range wireless packet comprising a trigger-based transmission associated at least in part with the trigger frame.
4 . The apparatus of claim 3 , wherein the processing system is further configured to cause the apparatus to:
transmit, via the request to transmit the ELR wireless packet, an identifier of the wireless station, information associated with a basic service set, a duration for the protection for the ELR wireless packet, or any combination thereof.
5 . The apparatus of claim 3 , wherein the processing system is further configured to cause the apparatus to:
transmit the request via a wireless packet comprising at least a short training field, a long training field, and a signal field.
6 . The apparatus of claim 1 , wherein the processing system is further configured to cause the apparatus to:
apply a carrier frequency offset to the preamble, the carrier frequency offset associated at least in part with the indication.
7 . The apparatus of claim 1 , wherein the processing system is further configured to cause the apparatus to:
transmit, via a field of the preamble, a signature sequence that is unique to ELR communications, the signature sequence associated at least in part with the indication.
8 . The apparatus of claim 1 , wherein the processing system is further configured to cause the apparatus to:
transmit the data field in accordance with an interleaving parameter, a code rate, a modulation scheme, or any combination thereof, the interleaving parameter, the code rate, and the modulation scheme associated with the data rate.
9 . The apparatus of claim 8 , wherein the modulation scheme comprises a modulation and coding scheme 0 (MCS0).
10 . The apparatus of claim 1 , wherein one or more fields of the preamble indicate whether the ELR wireless packet is for a single user or not, coding information, a length of the ELR wireless packet, a modulation and coding scheme (MCS), a bandwidth size, a resource unit size, or any combination thereof.
11 . An apparatus for wireless communications at a wireless station, comprising:
a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the apparatus to:
transmit, in accordance with a data rate associated with extended long range (ELR) communications, and via a frequency band that is at least 2.4 gigahertz or higher in a frequency domain, an (ELR) wireless packet that comprises a preamble and a data field, the preamble comprising a short training field, a long training field, or both dedicated to the (ELR) communications, a duration of the short training field associated with detection of the (ELR) wireless packet and an automatic gain control for the (ELR) wireless packet, the preamble and the data field of the (ELR) wireless packet being transmitted via a first bandwidth that is less than a threshold bandwidth for the (ELR) communications, the first bandwidth being in accordance with a downclocking ratio that is associated with a downclocking of a bandwidth of the ELR wireless packet from a second bandwidth to the first bandwidth.
12 . The apparatus of claim 11 , wherein the processing system is further configured to cause the apparatus to:
transmit the short training field, the long training field, or both in accordance with respective boosted power levels, the respective boosted power levels associated with a threshold power level value for the data rate.
13 . The apparatus of claim 11 , wherein the processing system is further configured to cause the apparatus to:
receive signaling that triggers transmission of the (ELR) wireless packet, the (ELR) wireless packet transmitted in accordance with the signaling.
14 . The apparatus of claim 11 , wherein:
the (ELR) wireless packet is associated with orthogonal frequency division (OFDM) communications; and
the OFDM communications comprise a plurality of (ELR) wireless packets comprising the (ELR) wireless packet, the plurality of (ELR) wireless packets being associated with the downclocking ratio.
15 . The apparatus of claim 11 , wherein the processing system is further configured to cause the apparatus to:
transmit the (ELR) wireless packet in accordance with a numerical quantity of repetitions in frequency associated with a target coverage range corresponding to the (ELR) communications.
16 . The apparatus of claim 11 , wherein the processing system is further configured to cause the apparatus to:
select the downclocking ratio in accordance with a carrier frequency offset correction value satisfying a threshold carrier frequency offset correction value, a range gain value satisfying a threshold range gain value, or both.
17 . The apparatus of claim 11 , wherein the processing system is further configured to cause the apparatus to:
transmit the preamble in accordance with an increased frequency spacing between one or more resources of at least one field of one or more fields of the preamble in accordance with a carrier frequency offset correction value failing to satisfy a threshold carrier frequency offset correction value.
18 . The apparatus of claim 11 , wherein the processing system is further configured to cause the apparatus to:
select the first bandwidth for the data field in accordance with a resource unit size corresponding to the preamble and the data field.
19 . The apparatus of claim 18 , wherein:
the (ELR) wireless packet is associated with orthogonal frequency division (OFDM) communications; and
the OFDM communications comprise the (ELR) wireless packet and a plurality of wireless packets in accordance with the resource unit size and a tone plan associated with the (ELR) wireless packet and the plurality of wireless packets.
20 . The apparatus of claim 18 , wherein the preamble indicates whether the (ELR) wireless packet is for a single user or not, coding information, a length of the (ELR) wireless packet, a modulation and coding scheme (MCS), a bandwidth size, the resource unit size, or any combination thereof.
21 . The apparatus of claim 18 , wherein one or more fields of the preamble are repeated in accordance with a tone plan and a duration in accordance with the resource unit size, the tone plan associated with one or more resource indices for repetitions of the one or more fields of the preamble.
22 . The apparatus of claim 11 , wherein the preamble comprises the short training field dedicated to the (ELR) communications, and a tone spacing associated with the short training field is associated at least in part with the (ELR) communications.
23 . A method for wireless communication at a wireless station, comprising:
receiving an indication to transmit an extended long range (ELR) wireless packet comprising a preamble and a data field, the ELR wireless packet associated with a frequency band that is at least 2.4 gigahertz or higher in a frequency domain and associated with orthogonal frequency division (OFDM) communications; and
transmitting, in accordance with the indication and a data rate associated with ELR communications, the ELR wireless packet including the preamble and the data field, the preamble including single legacy short training field (STF) (L-STF), a single legacy long training field (LTF) (L-LTF), a legacy signal (SIG) field (L-SIG), a single repeat of the L-SIG field (RL-SIG), a universal SIG field (U-SIG), a single ELR STF (ELR-STF), one or more ELR LTFs (ELR-LTFs), and an ELR SIG field (ELR-SIG) that is repeated 4 times in the time domain, the data field also being repeated 4 times in the time domain, the data rate being less than a minimum data rate used for a legacy version of an Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, and the L-STF and L-LTF being transmitted with a higher power than that used for the other fields of the preamble.
24 . The method of claim 23 , further comprising:
transmitting a request to transmit the (ELR) wireless packet, the indication being received in response to transmitting the request.
25 . A method for wireless communication at a wireless station, comprising:
transmitting, in accordance with a data rate associated with extended long range (ELR) communications, and via a frequency band that is at least 2.4 gigahertz or higher in a frequency domain, an (ELR) wireless packet that comprises a preamble and a data field, the preamble comprising a short training field, a long training field, or both dedicated to the (ELR) communications, a duration of the short training field associated with detection of the (ELR) wireless packet and an automatic gain control for the (ELR) wireless packet, the preamble and the data field of the (ELR) wireless packet being transmitted via a first bandwidth that is less than a threshold bandwidth for the (ELR) communications, the first bandwidth being in accordance with a downclocking ratio that is associated with a downclocking of a bandwidth of the ELR wireless packet from a second bandwidth to the first bandwidth.