Multi-user communication in wireless networks
AssigneeNewracom, Inc.
InventorYoung Hoon KWON
Life of this patent
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Abstract
An Access Point (AP) performs a Multi-User (MU) transmission by allocating a plurality of resources of an Up-Link (UL) MU transmission to a first plurality of stations, and by transmitting, using one or more 20 MHz channels, a Down-Link (DL) PHY Layer Convergence Procedure (PLCP) Protocol Data Unit (PPDU). The DL PPDU includes trigger information. The trigger information solicits the first plurality of stations to participate in the UL MU transmission using the allocated resources. All of the allocated resources may be in the one or more 20 MHz channels of the DL PPDU. The allocated resources may include at least one resource in each of the one or more 20 MHz channels of the DL PPDU.
Claims20
A method implemented by an Access Point (AP) in a wireless communication system, the method comprising:
- transmitting a first Down Link (DL) Physical Protocol Data Unit (PPDU), including a plurality of trigger information, the plurality of trigger information including first trigger information initiating a first frame exchange and second trigger information initiating a second frame exchange;
- successfully receiving an Up Link (UL) PPDU;
- determining whether the UL PPDU includes a Medium Access Control (MAC) Data Protocol Unit (MPDU) from a station solicited by trigger information of the plurality of trigger information;
- and
- in response to determining that the UL PPDU includes an MPDU from at least one station solicited by the first trigger information, determining that the first and second frame exchanges are both successful.
An apparatus comprising:
- a processor;
- a transmitter;
- and
- a receiver,
- wherein the processor is configured to perform:
- generating a first Down Link (DL) Physical Protocol Data Unit (PPDU) including a plurality of trigger information, the plurality of trigger information including first trigger information initiating a first frame exchange and second trigger information initiating a second frame exchange;
- transmitting, using the transmitter, the first DL PPDU;
- successfully receiving, using the receiver, an Up Link (UL) PPDU;
- determining whether the UL PPDU includes a Medium Access Control (MAC) Data Protocol Unit (MPDU) from a station solicited by trigger information of the plurality of trigger information;
- and
- in response to determining that the UL PPDU includes an MPDU from at least one station solicited by the first trigger information, determining that the first and second frame exchanges are both successful.
A non-transitory computer-readable media comprising computer programming instructions that when executed by an apparatus, including a processor, cause the apparatus to:
- transmit a first Down Link (DL) Physical Protocol Data Unit (PPDU) including a plurality of trigger information, the plurality of trigger information including a first trigger information initiating a first frame exchange and a second trigger information initiating a second frame exchange;
- detect the successful reception of an Up Link (UL) PPDU;
- determine whether the UL PPDU includes a Medium Access Control (MAC) Data Protocol Unit (MPDU) from a station solicited by trigger information of the plurality of trigger information;
- and
- in response to determining that the UL PPDU includes an MPDU from at least one station solicited by the first trigger information, determine that the first and second frame exchanges are both successful.
Dependencies are inferred from the claim text.