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US 9,071,990 B2Granted
Dual interpretation of a length field of a signal unit
AssigneeQUALCOMM Incorporated
InventorsSameer Vermani, Mohammad Hossein Taghavi Nasrabadi, Simone Merlin, Santosh Paul Abraham
Life of this patent
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Abstract
A method includes receiving, at a wireless device, a frame via a sub-1 gigahertz (GHz) wireless network. The frame includes a signal (SIG) unit including a length field and an aggregation field. The length field may be interpreted as a number of bytes or as a number of symbols based on a value of the aggregation field and based on whether the frame is associated with a 1 megahertz (MHz) bandwidth mode, based on whether the frame includes either a short format preamble or a long format preamble, or based on whether the frame is determined to be a single user (SU) frame or a multi user (MU) frame.
Claims20
A method comprising:
- receiving, at a wireless device, a frame via a sub-1 gigahertz (GHz) wireless network, wherein the frame includes a signal (SIG) unit comprising a length field and an aggregation field;
- in response to determining that the frame is associated with a 1 megahertz (MHz) bandwidth mode, interpreting the length field as a number of bytes or a number of symbols based on a value of the aggregation field;
- in response to determining that the frame is not associated with the 1 MHz bandwidth mode, determining whether the frame includes a short format preamble or a long format preamble;
- in response to determining that the frame includes the short format preamble, interpreting the length field as a number of bytes or a number of symbols based on the value of the aggregation field;
- in response to determining that the frame includes the long format preamble, determining whether the frame is a single user (SU) frame or a multi user (MU) frame;
- in response to determining that the frame is the SU frame, interpreting the length field as a number of bytes or a number of symbols based on the value of the aggregation field;
- and
- in response to determining that the frame is the MU frame, interpreting the length field as a number of symbols.
5 more elements
An apparatus comprising:
- a receiver configured to receive, via a sub-1 gigahertz (GHz) wireless network, a frame having a signal (SIG) unit comprising a length field and an aggregation field;
- and
- a processor configured to:
- in response to determining that the frame is associated with a 1 megahertz (MHz) bandwidth mode, interpret the length field as a number of bytes or a number of symbols based on a value of the aggregation field;
- in response to determining that the frame is not associated with the 1 MHz bandwidth mode, determine whether the frame includes a short format preamble or a long format preamble;
- in response to determining that the frame includes the short format preamble, interpret the length field as a number of bytes or a number of symbols based on the value of the aggregation field;
- in response to determining that the frame includes the long format preamble, determine whether the frame is a single user (SU) frame or a multi user (MU) frame;
- in response to determining that the frame is the SU frame, interpret the length field as a number of bytes or a number of symbols based on the value of the aggregation field;
- and
- in response to determining that the frame is the MU frame, interpret the length field as a number of symbols.
7 more elements
An apparatus comprising:
- means for receiving, via a sub-1 gigahertz (GHz) wireless network, a frame having a signal (SIG) unit comprising a length field and an aggregation field;
- and
- a processor configured to:
- in response to determining that the frame is associated with a 1 megahertz (MHz) bandwidth mode, interpret the length field as a number of bytes or a number of symbols based on a value of the aggregation field;
- in response to determining that the frame is not associated with the 1 MHz bandwidth mode, determine whether the frame includes a short format preamble or a long format preamble;
- in response to determining that the frame includes the short format preamble, interpret the length field as a number of bytes or a number of symbols based on the value of the aggregation field;
- in response to determining that the frame includes the long format preamble, determine whether the frame is a single user (SU) frame or a multi user (MU) frame;
- in response to determining that the frame is the SU frame, interpret the length field as a number of bytes or a number of symbols based on the value of the aggregation field;
- and
- in response to determining that the frame is the MU frame, interpret the length field as a number of symbols.
7 more elements
A non-transitory computer-readable medium comprising instructions that, when executed by a computer, cause the computer to:
- receive, via a sub-1 gigahertz (GHz) wireless network, a frame having a signal (SIG) unit comprising a length field and an aggregation field;
- in response to determining that the frame is associated with a 1 megahertz (MHz) bandwidth mode, interpret the length field as a number of bytes or a number of symbols based on a value of the aggregation field;
- in response to determining that the frame is not associated with the 1 MHz bandwidth mode, determine whether the frame includes a short format preamble or a long format preamble;
- in response to determining that the frame includes the short format preamble, interpret the length field as a number of bytes or a number of symbols based on the value of the aggregation field;
- in response to determining that the frame includes the long format preamble, determine whether the frame is a single user (SU) frame or a multi user (MU) frame;
- in response to determining that the frame is the SU frame, interpret the length field as a number of bytes or a number of symbols based on the value of the aggregation field;
- and
- in response to determining that the frame is the MU frame, interpret the length field as a number of symbols.
5 more elements
Dependencies are inferred from the claim text.