Patent ID: 9596060
Date: 2017-03-14
CPC Classifications: H04L,H04W

Claim:
1. A method, comprising: selecting a number of devices in a group of multiple devices to which an orthogonal frequency division multiple access (OFDMA) data unit is to be transmitted; selecting a block allocation that indicates respective integer numbers of different tone blocks of a wireless local area network (WLAN) communication channel to be assigned to each device in the group of multiple devices; determining a single index to a codebook, and including an indicator of the single index in a first field of a signal field of the OFDMA data unit, wherein the indicator of the single index specifies a single entry in the codebook that indicates both (i) the selected block allocation of each device in the group of multiple devices and (ii) a number of sub-fields in a plurality of subfields in a second field of the signal field; encoding the plurality of sub-fields in the second field of the signal field of the OFDMA data unit to indicate a respective device identifier for each device in the group of multiple devices; and transmitting the OFDMA data unit to each device in the group of multiple devices.