Multi-user communication in wireless networks
AssigneeNewracom, Inc.
InventorYoung Hoon KWON
Life of this patent
Estimating the term…
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.
Claims16
A method implemented by an Access Point (AP) in a wireless communication system, the method comprising:
- generating a downlink frame comprising resource allocation information, wherein the resource allocation information indicates allocation of a plurality of resource units to a plurality of stations to be used for uplink transmission, wherein the downlink frame has a bandwidth that spans two or more 20 MHz channels, wherein the downlink frame comprises a trigger information, and wherein the trigger information solicits one or more stations in the plurality of stations to participate in the uplink transmission;
- transmitting the downlink frame to the plurality of stations;
- and
- receiving simultaneously a plurality of uplink frames from the plurality of stations immediately after transmitting the downlink frame, wherein a payload of a first uplink frame in the plurality of uplink frames is received from a first station using a first resource unit that is outside a bandwidth of the 20 MHz channel including the trigger information and is within the bandwidth of the downlink frame.
An apparatus comprising:
- a processor configured to generate a downlink frame comprising resource allocation information, wherein the resource allocation information indicates allocation of a plurality of resource units to a plurality of stations to be used for uplink transmission, wherein the downlink frame has a bandwidth that spans two or more 20 MHz channels, wherein the downlink frame comprises a trigger information, and wherein the trigger information solicits one or more stations in the plurality of stations to participate in the uplink transmission;
- a transmitter configured to transmitting the downlink frame to the plurality of stations;
- and
- a receiver configured to receive simultaneously a plurality of uplink frames from the plurality of stations immediately after transmitting the downlink frame, wherein a payload of a first uplink frame in the plurality of uplink frames is received from a first station using a first resource unit that is outside a bandwidth of the 20 MHz channel including the trigger information and is within the bandwidth of the downlink frame.
Dependencies are inferred from the claim text.