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US 10,856,281 B2Granted
Methods and systems for multi user uplink compatibility with legacy devices
AssigneeQUALCOMM Incorporated
InventorsMaarten Menzo Wentink, Simone Merlin, Albert Van Zelst
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Abstract
Methods and apparatus for multiple user uplink are provided. In one aspect, a method of transmitting a physical layer convergence protocol data unit on a wireless medium includes generating a first portion and a second portion of the physical layer convergence protocol data unit, transmitting the first portion at a first data rate, the first portion decodable by a first and second sets of devices, and transmitting the second portion at a second data rate higher than the first data rate, the second portion decodable by the second set of devices.
Claims20
A method for wireless communication, comprising:
- selecting a first set of devices to participate in a multi-user transmission;
- generating a physical layer convergence protocol data unit (PPDU), the PPDU comprising:
- a first portion decodable by the first set of devices and by a second set of devices, the first portion including a signal field indicating a duration that extends at least to an end of the multi-user transmission and that causes the second set of devices to defer communicating for the duration;
- and
- a second portion decodable by the first set of devices, the second portion including identification information that identifies the first set of devices, and including scheduling information indicating when each device of the first set of devices is to transmit the multi-user transmission;
- and
- transmitting the PPDU to at least the first and second sets of devices, wherein the first portion is transmitted at a first data rate and the second portion is transmitted at a second data rate higher than the first data rate.
4 more elements
A wireless communication device, comprising:
- a processor;
- and
- a memory storing processor-readable instructions that, when executed by the processor, causes the wireless communication device to:
- select a first set of devices to participate in a multi-user transmission;
- generate a physical layer convergence protocol data unit (PPDU), the PPDU comprising:
- a first portion decodable by the first set of devices and by a second set of devices, the first portion including a signal field indicating a duration that extends at least to an end of the multi-user transmission and that causes the second set of devices to defer communicating for the duration;
- and
- a second portion decodable by the first set of devices, the second portion including identification information that identifies the first set of devices, and including scheduling information indicating when each device of the first set of devices is to transmit the multi-user transmission;
- and
- transmit the PPDU to at least the first and second sets of devices, wherein the first portion is transmitted at a first data rate and the second portion is transmitted at a second data rate higher than the first data rate.
7 more elements
A method for wireless communication by a wireless communication device, comprising:
- receiving a physical layer convergence protocol data unit (PPDU), the PPDU selecting at least the wireless communication device to participate in a multi-user transmission and including:
- a first portion decodable by a first set of devices that includes the wireless communication device and by a second set of devices, the first portion including a signal field indicating a duration that extends at least to an end of the multi-user transmission and that causes the second set of devices to defer communicating for the duration;
- and
- a second portion decodable by the first set of devices, the second portion including identification information that identifies the first set of devices including the wireless communication device, and including scheduling information indicating when each device of the first set of devices including the wireless communication device is to transmit the multi-user transmission, wherein the first portion is transmitted at a first data rate and the second portion is transmitted at a second data rate higher than the first data rate;
- and
- transmitting a communication as part of the multi-user transmission based on the identification information and the scheduling information.
3 more elements
A wireless communication device, comprising:
- a processor;
- and
- a memory storing processor-readable instructions that, when executed by the processor, causes the wireless communication device to:
- receive a physical layer convergence protocol data unit (PPDU), the PPDU selecting at least the wireless communication device to participate in a multi-user transmission and including:
- a first portion decodable by a first set of devices that includes the wireless communication device and by a second set of devices, the first portion including a signal field indicating a duration that extends at least to an end of the multi-user transmission and that causes the second set of devices to defer communicating for the duration;
- and
- a second portion decodable by the first set of devices, the second portion including identification information that identifies the first set of devices including the wireless communication device, and including scheduling information indicating when each device of the first set of devices including the wireless communication device is to transmit the multi-user transmission, wherein
- the first portion is transmitted at a first data rate and the second portion is
- transmitted at a second data rate higher than the first data rate;
- and
- transmit a communication as part of the multi-user transmission based on the identification information and the scheduling information.
8 more elements
Dependencies are inferred from the claim text.