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US 9,071,992 B2Granted
Signaling for extended MPDU, A-MPDU and A-MSDU frame formats
AssigneeQUALCOMM Incorporated
InventorsSimone Merlin, Maarten Menzo Wentink, Santosh Paul Abraham
Life of this patent
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Abstract
Certain aspects of the present disclosure provide techniques for signaling extended sizes for Medium Access Control (MAC) Protocol Data Unit (MPDU), Aggregated MPDU (A-MPDU) and Aggregated MAC Service Data Unit (A-MSDU) frame formats. A first technique proposes modifications to the current specifications of the IEEE 802.11n standard in order to allow for longer MPDUs in an A-MPDU. This technique reuses the IEEE 802.11n signaling format and utilizes reserved bits to convey the new information. The second technique proposes a new signaling mechanism to convey the extended sizes for the MPDU, A-MPDU and the A-MSDU through a very high throughput (VHT) capability element.
Claims32
An apparatus for wireless communications, comprising:
- a circuit configured to generate a frame comprising a very high throughput (VHT) capability element comprising at least one of:
- an indication about a maximum length for a Medium Access Control (MAC) Protocol Data Unit (MPDU), an indication about a maximum length for an Aggregated MPDU (A-MPDU) or an indication about a maximum length for an Aggregated MAC Service Data Unit (A-MSDU), wherein the maximum MPDU length comprises a value greater than 8191 bytes, the maximum A-MPDU length comprises a value greater than 256 kilobytes, and the maximum A-MSDU length comprises a value greater than 7935 bytes and the indication about the maximum A-MPDU length is expressed as a maximum A-MPDU length exponent field using three bits in the VHT capability element;
- and
- a transmitter configured to transmit the frame.
1 more element
A method for wireless communications, comprising:
- generating a frame comprising a very high throughput (VHT) capability element comprising at least one of:
- an indication about a maximum length for a Medium Access Control (MAC) Protocol Data Unit (MPDU), an indication about a maximum length for an Aggregated MPDU (A-MPDU) or an indication about a maximum length for an Aggregated MAC Service Data Unit (A-MSDU), wherein the maximum MPDU length comprises a value greater than 8191 bytes, the maximum A-MPDU length comprises a value greater than 256 kilobytes, and the maximum A-MSDU length comprises a value greater than 7935 bytes and the indication about the maximum A-MPDU length is expressed as a maximum A-MPDU length exponent field using three bits in the VHT capability element;
- and
- transmitting the frame.
1 more element
An apparatus for wireless communications, comprising:
- means for generating a frame comprising a very high throughput (VHT) capability element comprising at least one of:
- an indication about a maximum length for a Medium Access Control (MAC) Protocol Data Unit (MPDU), an indication about a maximum length for an Aggregated MPDU (A-MPDU) or an indication about a maximum length for an Aggregated MAC Service Data Unit (A-MSDU), wherein the maximum MPDU length comprises a value greater than 8191 bytes, the maximum A-MPDU length comprises a value greater than 256 kilobytes, and the maximum A-MSDU length comprises a value greater than 7935 bytes and the indication about the maximum A-MPDU length is expressed as a maximum A-MPDU length exponent field using three bits in the VHT capability element;
- and
- means for transmitting the frame.
1 more element
A computer-program product for wireless communications, comprising a non-transitory computer-readable medium comprising instructions executable for:
- generating a frame comprising a very high throughput (VHT) capability element comprising at least one of:
- an indication about a maximum length for a Medium Access Control (MAC) Protocol Data Unit (MPDU), an indication about a maximum length for an Aggregated MPDU (A-MPDU) or an indication about a maximum length for an Aggregated MAC Service Data Unit (A-MSDU), wherein the maximum MPDU length comprises a value greater than 8191 bytes, the maximum A-MPDU length comprises a value greater than 256 kilobytes, and the maximum A-MSDU length comprises a value greater than 7935 bytes and the indication about the maximum A-MPDU length is expressed as a maximum A-MPDU length exponent field using three bits in the VHT capability element;
- and
- transmitting the frame.
1 more element
An access point for wireless communications, comprising:
- at least one antenna;
- a circuit configured to generate a frame comprising a very high throughput (VHT) capability element comprising at least one of:
- an indication about a maximum length for a Medium Access Control (MAC) Protocol Data Unit (MPDU), an indication about a maximum length for an Aggregated MPDU (A-MPDU) or an indication about a maximum length for an Aggregated MAC Service Data Unit (A-MSDU), wherein the maximum MPDU length comprises a value greater than 8191 bytes, the maximum A-MPDU length comprises a value greater than 256 kilobytes, and the maximum A-MSDU length comprises a value greater than 7935 bytes and the indication about the maximum A-MPDU length is expressed as a maximum A-MPDU length exponent field using three bits in the VHT capability element;
- and
- a transmitter configured to transmit the frame via the at least one antenna.
2 more elements
An apparatus for wireless communications, comprising:
- a circuit configured to generate a frame comprising a capability element comprising at least one of:
- an indication about a maximum length for a Medium Access Control (MAC) Protocol Data Unit (MPDU), an indication about a maximum length for an Aggregated MPDU (A-MPDU) or an indication about a maximum length for an Aggregated MAC Service Data Unit (A-MSDU), wherein the maximum MPDU length comprises a value greater than 8191 bytes, the maximum A-MPDU length comprises a value greater than 256 kilobytes, and the maximum A-MSDU length comprises a value greater than 7935 bytes and the indication about the maximum A-MPDU length is expressed as a maximum A-MPDU length exponent field using a plurality of bits in the capability element;
- and
- a transmitter configured to transmit the frame.
1 more element
A method for wireless communications, comprising:
- generating a frame comprising a capability element comprising at least one of:
- an indication about a maximum length for a Medium Access Control (MAC) Protocol Data Unit (MPDU), an indication about a maximum length for an Aggregated MPDU (A-MPDU) or an indication about a maximum length for an Aggregated MAC Service Data Unit (A-MSDU), wherein the maximum MPDU length comprises a value greater than 8191 bytes, the maximum A-MPDU length comprises a value greater than 256 kilobytes, and the maximum A-MSDU length comprises a value greater than 7935 bytes and the indication about the maximum A-MPDU length is expressed as a maximum A-MPDU length exponent field using a plurality of bits in the capability element;
- and
- transmitting the frame.
1 more element
Dependencies are inferred from the claim text.