Communicating in a narrowband channel
In some examples, a wireless device transmits a narrowband downlink frame in a narrowband channel, the narrowband downlink frame comprising a beacon frame that is transmitted periodically.
1. A method of a wireless device, comprising:
transmitting a narrowband downlink frame in a narrowband channel, the narrowband downlink frame comprising a first beacon that is transmitted periodically, wherein the narrowband channel has a frequency range that is less than and within a frequency range of a wideband channel;
transmitting, in the narrowband channel, information about a wideband network comprising the wideband channel; and
prior to transmitting the narrowband downlink frame, transmitting further information containing a time period during which stations in range of the wireless device are not to initiate wideband transmissions, the time period being for narrowband communications comprising the transmitting of the first beacon and the information about the wideband network.
2. The method of claim 1 , wherein the narrowband downlink frame comprises discovery information relating to discovery or operation of a narrowband network.
3. The method of claim 2 , wherein the wireless device is a first wireless device, and wherein the discovery information is useable by a second wireless device to discover the first wireless device.
4. The method of claim 1 , wherein a frequency of transmission of first beacons in the narrowband channel is less than a frequency of transmission of second beacons in a wideband channel such that the wireless device transmits the first beacons less frequently than the second beacons.
5. The method of claim 1 , wherein the wireless device is an access point that operates according to Institute of Electrical and Electronic Engineers (IEEE) 802.11.
6. The method of claim 1 , further comprising:
prior to transmitting the narrowband downlink frame, transmitting, by the wireless device, the further information useable to avoid overlapping transmissions by multiple wireless devices on a wireless medium.
7. The method of claim 6 , wherein the further information comprises a legacy preamble.
8. The method of claim 7 , wherein the legacy preamble contains the further information.
9. The method of claim 8 , wherein the time period contained in the legacy preamble is to protect a communication in the narrowband channel from interference by communication in the wideband channel.
10. The method of claim 1 , further comprising:
sending, by the wireless device, an indication relating to Target Wake Time (TWT) operation.
11. The method of claim 10 , wherein the indication relating to the TWT operation is useable by another wireless device that a narrowband network is capable of the TWT operation during a time period.
12. A first wireless device comprising:
a communication interface to communicate wirelessly with a second wireless device; and
at least one processor configured to:
transmit a narrowband downlink frame in a narrowband channel, the narrowband downlink frame comprising a beacon frame that is transmitted periodically, wherein the narrowband channel has a frequency range that is less than and within a frequency range of a wideband channel;
transmit, in the narrowband channel, information about a wideband network comprising the wideband channel; and
prior to transmitting the narrowband downlink frame, transmit further information containing a time period during which stations in range of the first wireless device are not to initiate wideband transmissions, the time period being for narrowband communications comprising the transmitting of the beacon frame and the information about the wideband network.
13. The first wireless device of claim 12 , wherein the narrowband downlink frame comprises discovery information relating to discovery or operation of a narrowband network.
14. The first wireless device of claim 12 , wherein the first wireless device is an access point to operate according to Institute of Electrical and Electronic Engineers (IEEE) 802.11.
15. The first wireless device of claim 12 , wherein a frequency of transmission of the beacon frame in the narrowband channel is less than a frequency of transmission of a wideband beacon in the wideband channel.
16. A non-transitory storage medium storing instructions that upon execution cause an access point (AP) to:
transmit a narrowband downlink frame in a narrowband channel, the narrowband downlink frame comprising a first beacon that is transmitted periodically, wherein the narrowband channel has a frequency range that is less than and within a frequency range of a wideband channel;
transmit, in the narrowband channel, information about a wideband network comprising the wideband channel; and
prior to transmitting the narrowband downlink frame, transmit further information containing a time period during which stations in range of the AP are not to initiate wideband transmissions, the time period being for narrowband communications comprising the transmitting of the first beacon and the information about the wideband network.
17. The non-transitory storage medium of claim 16 , wherein a frequency of transmission of first beacons in the narrowband channel is less than a frequency of transmission of second beacons in a wideband channel such that the AP transmits the first beacons less frequently than the second beacons.