Transceiver requirements for new modulation and coding schemes

Patent metadata

Field	Value
Publication number	US-2025300864-A1
Application number	US-202519231971-A
Country	US
Kind code	A1
Filing date	Jun 9, 2025
Priority date	Jun 10, 2024
Publication date	Sep 25, 2025
Grant date	—

Abstract

This disclosure describes systems, methods, and devices related to optimized transceiver capabilities. A device may provide support for multiple modulation and coding schemes (MCSs), including QPSK 2/3, 16-QAM 2/3, 256-QAM 2/3, and 16-QAM 5/6, with relaxed constellation error requirements to enhance throughput and range in wireless communication. The device may cause to implement enhanced transmitter constellation error requirements for improved signal quality in 802 11bn networks. The device may provide support for extended range modulation and coding schemes (ELR MCSs), including BPSK 1/2 and QPSK 1/2 with 4× duplication, to optimize network performance.

First claim

1 . An apparatus of an access point (AP) device, the AP device comprising processing circuitry coupled to storage, the processing circuitry configured to:
generate a physical layer (PHY) protocol data unit (PPDU) using an MCS of quadrature phase-shift keying (QPSK) 2/3 code rate, 16-quadrature amplitude modulation (16-QAM) 2/3 code rate, 256-QAM 2/3 code rate, 16-QAM 5/6 code rate, binary phase-shift keying (BPSK) ½ code rate with 4× duplication or QPSK ½ code rate with 4× duplication, and cause to send the PPDU, wherein an error vector magnitude (EVM) of the PPDU is less than or equal to a threshold less than or equal to −4 decibel-milliwatts (dBm).

2 . The apparatus of claim 1 , wherein the MCS is the QPSK 2/3 code rate, and wherein the threshold is −12 dBm.

3 . The apparatus of claim 1 , wherein the MCS is the 16-QAM 2/3 code rate, and wherein the threshold is −18 dBm.

4 . The apparatus of claim 1 , wherein the MCS is the 256-QAM 2/3 code rate, and wherein the threshold is −29 dBm.

5 . The apparatus of claim 1 , wherein the MCS is the 16-QAM 5/6 code rate, and wherein the threshold is −20 dBm.

6 . The apparatus of claim 1 , wherein the MCS is the BPSK ½ code rate with 4× duplication, and wherein the threshold is −4 dBm.

7 . The apparatus of claim 1 , wherein the MCS is the QPSK ½ code rate with 4× duplication, and wherein the threshold is −5 dBm.

8 . The apparatus of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals comprising the PPDU.

9 . The apparatus of claim 8 , further comprising an antenna coupled to the transceiver to cause to send a frame comprising a second PPDU.

10 . A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors of an access point (AP) device result in performing operations comprising:
identify a received physical layer (PHY) protocol data unit (PPDU) using an MCS of quadrature phase-shift keying (QPSK) 2/3 code rate, 16-quadrature amplitude modulation (16-QAM) 2/3 code rate, 256-QAM 2/3 code rate, 16-QAM 5/6 code rate, binary phase-shift keying (BPSK) ½ code rate with 4× duplication or QPSK ½ code rate with 4× duplication, wherein a receiver sensitivity for receiving the PPDU is between −48-−88 decibel-milliwatts (dBm), wherein an adjacent band rejection threshold for receiving the PPDU is between −6-−12 dBm, and wherein a non-adjacent band rejection threshold for receiving the PPDU is between 10-28 dBm.

11 . The non-transitory computer-readable medium of claim 10 , wherein for a 20 MHz bandwidth for the PPDU:
the MCS is the QPSK 2/3 code rate and the receiver sensitivity is −78 dBm, the MCS is the 16-QAM 2/3 code rate and the receiver sensitivity is −71 dBm, the MCS is the 256-QAM 2/3 code rate and the receiver sensitivity is from −60 dBm, the MCS is the 16-QAM 5/6 code rate and the receiver sensitivity is −69 dBm, the MCS is the BPSK ½ code rate with 4× duplication and the receiver sensitivity is −82 dBm, or the MCS is the QPSK ½ code rate with 4× duplication and the receiver sensitivity is −82 dBm.

12 . The non-transitory computer-readable medium of claim 10 , wherein for a 40 MHz bandwidth for the PPDU:
the MCS is the QPSK 2/3 code rate and the receiver sensitivity is −75 dBm, the MCS is the 16-QAM 2/3 code rate and the receiver sensitivity is −68 dBm, the MCS is the 256-QAM 2/3 code rate and the receiver sensitivity is −57 dBm, or the MCS is the 16-QAM 5/6 code rate and the receiver sensitivity is −66 dBm.

13 . The non-transitory computer-readable medium of claim 10 , wherein for a 80 MHz bandwidth for the PPDU:
the MCS is the QPSK 2/3 code rate and the receiver sensitivity is −72 dBm, p1 the MCS is the 16-QAM 2/3 code rate and the receiver sensitivity is −65 dBm, the MCS is the 256-QAM 2/3 code rate and the receiver sensitivity is −54 dBm, or the MCS is the 16-QAM 5/6 code rate and the receiver sensitivity is −63 dBm.

14 . The non-transitory computer-readable medium of claim 10 , wherein for a 160 MHz bandwidth for the PPDU:
the MCS is the QPSK 2/3 code rate and the receiver sensitivity is −69 dBm, the MCS is the 16-QAM 2/3 code rate and the receiver sensitivity is −62 dBm, the MCS is the 256-QAM 2/3 code rate and the receiver sensitivity is −51 dBm, or the MCS is the 16-QAM 5/6 code rate and the receiver sensitivity is −60 dBm.

15 . The non-transitory computer-readable medium of claim 10 , wherein for a 320 MHz bandwidth for the PPDU:
the MCS is the QPSK 2/3 code rate and the receiver sensitivity is −66 dBm, the MCS is the 16-QAM 2/3 code rate and the receiver sensitivity is −59 dBm, the MCS is the 256-QAM 2/3 code rate and the receiver sensitivity is −48 dBm, the MCS is the 16-QAM 5/6 code rate and the receiver sensitivity is −57 dBm.

16 . The non-transitory computer-readable medium of claim 10 , wherein the MCS is the QPSK 2/3 code rate, the adjacent band rejection threshold is 12 dBm, and the non-adjacent band rejection threshold is 28 dBm.

17 . The non-transitory computer-readable medium of claim 10 , wherein the MCS is the 16-QAM 2/3 code rate, the adjacent band rejection threshold is 5 dBm, and wherein the non-adjacent band rejection threshold is 21 dBm.

18 . The non-transitory computer-readable medium of claim 10 , wherein the MCS is the 256-QAM 2/3 code rate, the adjacent band rejection threshold is −6 dBm, and wherein the non-adjacent band rejection threshold is −10 dBm.

19 . The non-transitory computer-readable medium of claim 10 , wherein the MCS is the 16-QAM 5/6 code rate, the adjacent band rejection threshold is 3 dBm, and wherein the non-adjacent band rejection threshold is 19 dBm.

20 . A method, comprising:
generating, by processing circuitry of an access point (AP) device, a physical layer (PHY) protocol data unit (PPDU) using an MCS of quadrature phase-shift keying (QPSK) 2/3 code rate, 16-quadrature amplitude modulation (16-QAM) 2/3 code rate, 256-QAM 2/3 code rate, 16-QAM 5/6 code rate, binary phase-shift keying (BPSK) ½ code rate with 4× duplication or QPSK ½ code rate with 4× duplication, and causing to send, by the processing circuitry, the PPDU,
wherein an error vector magnitude (EVM) of the PPDU is less than or equal to a threshold of less than or equal to −4 decibel-milliwatts (dBm).

Assignees

• Li Qinghua
• Fang Juan
• Gurevitz Assaf
• Stein Jeremy
• Friedman Avishay

Inventors

• Li Qinghua
• Fang Juan
• Gurevitz Assaf
• Stein Jeremy
• Friedman Avishay

Classifications

• H04W74/0816

  with collision avoidance · CPC title

• H04W64/00

  Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04L1/0003

  by switching between different modulation schemes · CPC title

• H04L27/2082 Primary

  for offset or staggered quadrature phase shift keying · CPC title