System and method for synchronization for ofdma transmission
AssigneeNewracom, Inc.
InventorYounghoon KWON
Life of this patent
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Abstract
In an example of wireless communications, an access point may send a downlink frame to multiple stations. The downlink frame may include information indicative of a cyclic prefix length to be utilized by the stations. In response, some or all of the stations may transmit their respective uplink frames to the access point. A cyclic prefix for a portion of each respective uplink frame may have a cyclic prefix length corresponding to the information included in the downlink frame. The downlink frame may be, for example, a beacon frame or a trigger frame. A trigger frame may allocate resources for uplink orthogonal frequency division multiple access (OFDMA) transmission. Other methods, apparatus, and computer-readable media are also disclosed.
Claims20
An apparatus for facilitating wireless communication, the apparatus comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, the one or more processors configured to cause:
- determining a second cyclic prefix length based on a first frame received;
- generating a second frame that comprises a first set of symbols and a second set of symbols, the first set of symbols being associated with a first cyclic prefix length, the second set of symbols being associated with the second cyclic prefix length;
- and
- providing the second frame for transmission.
An apparatus fir facilitating wireless communication, the apparatus comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, the one or more processors configured to cause:
- determining a cyclic prefix length for an uplink multi-user transmission based on a first frame received from an access point, wherein the first frame includes resource allocation information for the uplink multi-user transmission and the cyclic prefix length;
- generating a second frame using the cyclic prefix length for the uplink multi-user transmission;
- and
- transmitting the second frame using the resource allocation information.
A computer-implemented method of facilitating wireless communication, the method comprising:
- generating a first frame that comprises a payload, the payload comprising information indicative of a cyclic prefix length for a plurality of stations;
- and
- providing the first frame for transmission directed to the plurality of stations.
Dependencies are inferred from the claim text.