Operating parameter update with wider bandwidth

Patent metadata

Field	Value
Publication number	US-11924668-B2
Application number	US-202117203383-A
Country	US
Kind code	B2
Filing date	Mar 16, 2021
Priority date	Mar 16, 2020
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

Various embodiments relate to a method performed by a first wireless device for announcing operating capabilities to a second wireless device, wherein the first wireless device and second wireless device support a first protocol and a second protocol, including: announcing by the first device original capabilities to the second device; receiving an announcement of capabilities from the second device; receiving frames from the second device in PHY Protocol Data Units (PPDUs) following the first protocol and the second protocol; announcing by the first device a change in its capabilities to the second device; and receiving frames from the second device in PPDUs transmitted using the changed capabilities following the first protocol and the second protocol, wherein the change in the capabilities includes a change in a one of a puncture parameter, bandwidth parameter, mode and coding scheme (MCS) parameter, and a number of simultaneous streams (Nss) parameter.

First claim

What is claimed is:

1. A first wireless device for announcing operating capabilities to a second wireless device, wherein the first wireless device and second wireless device support a first protocol and a second protocol, comprising:
a processor configured to,
announce original capabilities to the second wireless device;
receive an announcement of capabilities from the second wireless device;
receive frames from the second wireless device in PHY Protocol Data Units (PPDUs) encoded using the first protocol and the second protocol;
announce a change in the first wireless device operating parameters to the second wireless device; and
receive frames from the second wireless device in PPDUs transmitted using the changed operating parameters encoded using the first protocol and the second protocol,
wherein the change in the operating parameters includes a change in a one of a bandwidth parameter, modulation and coding scheme (MCS) parameter, and a number of simultaneous streams (Nss) parameter;
wherein the operating parameter changes are carried in either HE (High Efficiency) OM (Operating Mode) Control field or another element;
wherein the processor is further configured to define a new EHT (Extreme High Throughput) OM (Operating Mode) Control field to announce EHT operating parameter changes; and
wherein the processor is further configured to combine the new EHT OM Control field with the HE OM Control field to announce the operating parameter changes when either Rx/Tx Nss is more than 8 or a bandwidth is more than 160 MHz.

2. The first wireless device of claim 1 ,
wherein the processor is configured to announce a static puncture parameter that defines a non-OFDMA (Orthogonal Frequency Division Multiplexing Access) puncture pattern between the first station and the second station.

3. The first wireless device of claim 2 ,
wherein the static puncture parameter is announced using a basic service set (BSS) operating element.

4. The first wireless device of claim 1 ,
wherein the processor is configured to announce a the static puncture parameter that defines a bitmap describing whether puncture is allowed for each 20 MHz channel.

5. The first wireless device of claim 4 ,
wherein the static puncture parameter is applied across a basic service set (BSS).

6. The first wireless device of claim 4 ,
wherein the static puncture parameter is applied to all bandwidths.

7. The first wireless device of claim 4 ,
wherein the static puncture parameter is announced using one bitmap in a basic service set (BSS) operating element, or another element.

8. The first wireless device of claim 1 ,
wherein the new EHT OM Control field includes
a 1-bit Additional Rx BW, indicating whether the bandwidth is 320 MHz or not,
4-bit Additional Rx Nss where 8 values are for Nss values of 9 to 16 and an additional one value is used to indicate Rx Nss=8 where this value indicates the maximal Nss at 80 MHz, and
4-bit Additional Tx Nss where 8 values are for Nss values of 9 to 16 and additional one value is used to indicate Rx Nss=8 and this value indicates the maximal Nss at 80 MHz.

9. The first wireless device of claim 1 ,
wherein the operating parameters further include:
1-bit Additional BW, indicating whether the bandwidth is 320 MHz or not;
4-bit Additional Rx Nss where 8 values are for Nss values of 9 to 16 and an additional one value is used to indicate Rx Nss=8 and this value indicates the maximal Nss at 80 MHz; and
4-bit Additional Tx Nss where 8 values are for Nss values of 9 to 16 and additional one value is used to indicate Rx Nss=8 and this value indicates the maximal Nss at 80 MHz.

10. The first wireless device of claim 1 ,
wherein the first wireless device announcements enable the second wireless device to derive the operating parameters of the first wireless device based upon the announcement carried in the HE Control field or the another element.

11. The first wireless device of claim 10 ,
wherein the derived operating parameters of the first wireless device at different bandwidths and MCS values for the first protocol are based upon announced respective bandwidths and MCS values for the first protocol of the original capabilities.

12. The first wireless device of claim 11 ,
wherein the derived operating parameters for the second protocol at different bandwidths and MCS values are based upon the derived Nss for the first protocol at the respective bandwidths and MCS values.

13. The first wireless device of claim 11 ,
wherein the processor in the first wireless device is configured to determine EHT transmit (Tx) and receive (Rx) Nss values;
wherein the first wireless device is configured to set the HE transmit Nss value at a bandwidth and MCS combination to a value of 8 if the EHT transmit (Tx) Nss value is greater than 8 at the bandwidth and MCS combination, otherwise set the HE transmit Nss value to the EHT transmit (Tx) and receive (Rx) Nss value at the bandwidth and MCS combination.

14. The first wireless device of claim 11 ,
wherein the processor in the first wireless device is configured to determine an EHT receive (Rx) Nss value;
wherein the first wireless device is configured to set the HE receive Nss value at a bandwidth and MCS combination to a value of 8 if the EHT receive (Rx) Nss value is greater than 8 at the bandwidth and MCS combination, otherwise set the HE receive Nss value to the EHT receive (Rx) Nss value at the bandwidth and MCS combination.

15. The first wireless device of claim 11 ,
wherein the processor in the first wireless device is configured to determine an EHT Rx Nss value EHTRxNss_SPECIFICBW_SPECIFICMCS having a bandwidth value of SPECIFICBW and an MCS value of SPECIFICMCS wherein SPECIFICBW is one of 160 MHz and 320 MHz to be:
EHTRxNss_SPECIFICBW_SPECIFICMCS=floor {Max_EHTRxNss_SPECIFICBW_SPECIFICMCS*(EHT Rx NSS)/Max_EHTRxNss_80MHZ_All_MCS},

where Max_EHTRxNss_SPECIFICBW_SPECIFICMCS is the Rx EHT Nss at a bandwidth of SPECIFICBW and an MCS of SPECIFICMCS, Max_EHTRxNss_80 MHZ_All_MCS is the maximal EHT Rx Nss at a bandwidth of 80 MHz and all MCS values, and EHT Rx NSS is the Nss value announced in an EHT OM.

16. The first wireless device of claim 11 ,
wherein the processor in the first wireless device is configured to determine an EHT Tx Nss value EHTTxNss_SPECIFICBW_SPECIFICMCS having a bandwidth value of SPECIFICBW and an MCS value of SPECIFICMCS wherein SPECIFICBW is one of 160 MHz and 320 MHz to be:
EHTTxNss_SPECIFICBW_SPECIFICMCS=floor {Max_EHTTxNss_SPECIFICBW_SPECIFICMCS*(EHT Tx NSS)/Max_EHTTxNss_80MHZ_All_MCS},

where Max_EHTTxNss_SPECIFICBW_SPECIFICMCS is the Tx EHT Nss at a bandwidth of SPECIFICBW and an MCS of SPECIFICMCS, Max_EHTTxNss_80 MHZ_All_MCS is the maximal EHT Tx Nss at a bandwidth of 80 MHz and all MCS values, and EHT Tx NSS is the Nss value announced in an EHT OM.

17. The first wireless device of claim 11 ,
wherein the processor in the first wireless device is configured to determine an EHT Rx Nss value EHTRxNss_80 MHZ_SPECIFICMCS at 80 MHz and an MCS value of SPECIFICMCS wherein a SPECIFICBW is ≤80 MHz to:
EHTRxNss_80MHZ_SPECIFICMCS=floor {Max_EHTRxNss_80MHZ_SPECIFICMCS*(EHT Rx NSS)/Max_EHTRxNss_80MHZ_All_MCS}

where Max_EHTRxNss_80 MHZ_SPECIFICMCS is the Rx EHT Nss at a bandwidth of 80 MHz and an MCS value of SPECIFICMCS, Max_EHTRxNss_80 MHZ_All_MCS is the maximal EHT Rx Nss at a bandwidth of 80 MHz and all MCS values, and EHT Rx NSS is the Nss value announced in one of an EHT OM, an EHT OM, and an Operating Mode Notification with EHT additional BW/Nss field.

Assignees

• Nxp Usa Inc

Inventors

• Chu Liwen
• Kwon Young Hoon
• Zhang Hongyuan
• Lou Huiling
• Cao Rui

Classifications

• H04W28/0215 Primary

  based on user or device properties, e.g. MTC-capable devices (services for machine-to-machine communication [M2M] or machine type communication [MTC] H04W4/70; wireless resource selection or allocation plan definition based on terminal or device properties H04W72/51) · CPC title