Overlaying wireless networks

1. A radio access provider, comprising:

one or more processing unit(s);

and one or more computer-readable media having thereon instructions executable to cause the processing unit(s) to perform operations comprising:

receiving, in a first frequency sub-band, control information of a first network having a first type;

transmitting, in a second, different frequency sub-band, control information of a second network having a second, different type;

determining respective channel quality values for individual candidate first-network channels of a plurality of candidate first-network channels based at least in part on second-network usage data of the candidate first-network channels;

selecting a first first-network channel from the candidate first-network channels based at least in part on the channel quality values;

transmitting media information of the first network via the first first-network channel and a second first-network channel, wherein the first and second first-network channels are spaced apart in frequency within a third frequency sub-band; and

transmitting media information of the second network via a second-network channel arranged in frequency between the first and second first-network channels within the third frequency sub-band,

so that the first network having the first type and the second network having the second, different type can operate within a single, common band.

2. The radio access provider according to claim 1 , wherein the operations further comprise:

selecting the second first-network channel randomly from a plurality of candidate channels of the first network.

3. The radio access provider according to claim 1 , wherein the operations further comprise:

selecting, as the second first-network channel, one of a plurality of candidate channels closest to the first first-network channel and having a signal-quality value meeting a selected criterion.

4. The radio access provider according to claim 1 , wherein the operations further comprise:

selecting, as the second first-network channel, one of a plurality of candidate channels most different in frequency from the first-network channel.

5. The radio access provider according to claim 1 , wherein the operations further comprise:

receiving a device-specific channel quality value from a wireless communication device of the first network; and

determining at least one of the channel quality values further based on the device-specific channel quality value.

6. The radio access provider according to claim 1 , wherein the operations further comprise:

after transmitting the media information of the first network via the first and second first-network channels, transmitting second media information of the first network via a third first-network channel, the channel being within the third frequency sub-band and different from the first and second first-network channels.

7. The radio access provider according to claim 1 , wherein the operations further comprise:

detecting interference in transmissions of the second network; and

in response, reducing a reference-signal power of the first network.

8. The radio access provider according to claim 1 , wherein the third frequency sub-band is disjoint from the second frequency sub-band.

9. The radio access provider according to claim 1 , wherein the first type is an LTE type and the second type is a GSM type.

10. The radio access provider according to claim 1 , wherein: the radio access provider further comprises a first transceiver and a second transceiver; and

the operations further comprise:

transmitting the media information of the first network using the first transceiver; and

transmitting the media information of the second network via the second transceiver.

11. The radio access provider according to claim 1 , wherein the operations further comprise:

determining a plurality of first-network channels comprising the first first-network channel and the second first-network channel;

selecting an additional second-network channel, the additional second-network channel different in frequency from the second-network channel and at least partly overlapping in frequency with the second first-network channel; and

transmitting second media information of the first network via the plurality of first-network channels except for the second first-network channel.

12. A radio access provider, comprising:

a first radio and a second, different radio, wherein the first radio and the second radio are tuned to operate within a common frequency band;

one or more antennas connected to at least the first radio or the second radio; and

a processor communicatively connected with the first radio and the second radio and configured to perform operations comprising:

receiving, via the first radio and in a first frequency sub-band, control information of a first network having a first type;

transmitting, via the second radio and in a second, different frequency sub-band, control information of a second network having a second, different type;

determining respective channel quality values for individual candidate first-network channels of a plurality of candidate first-network channels based at least in part on second-network usage data of the candidate first-network channels;

selecting a first first-network channel from the candidate first-network channels based at least in part on the channel quality values; transmitting, via the first radio, media information of the first network via the first first-network channel and a second first-network channel, wherein the first and second first-network channels are spaced apart in frequency within a third frequency sub-band; and

transmitting, via the second radio, media information of the second network via a second-network channel arranged in frequency between the first and second first-network channels within the third frequency sub-band,

so that the first network having the first type and the second network having the second, different type can operate within a single, common band.

13. The radio access provider according to claim 12 , wherein the operations further comprise:

selecting the second first-network channel randomly from a plurality of candidate channels of the first network.

14. The radio access provider according to claim 12 , wherein the operations further comprise:

selecting, as the second first-network channel, one of a plurality of candidate channels most different in frequency from the second-network channel.

15. The radio access provider according to claim 12 , wherein the operations further comprise:

after transmitting the media information of the first network via the first and second first-network channels, transmitting second media information of the first network via a third first-network channel within the third frequency sub-band different from the first and second first-network channels.

16. The radio access provider according to claim 12 , wherein the operations further comprise:

determining the first frequency sub-band closer to the center of a common band than the second frequency sub-band.

17. The radio access provider according to claim 12 , wherein the operations further comprise:

determining a plurality of first-network channels comprising the first first-network channel and the second first-network channel;

selecting an additional second-network channel, the additional second-network channel different in frequency from the second-network channel and at least partly overlapping in frequency with the second first-network channel; and

transmitting second media information of the first network via the plurality of first-network channels except for the second first-network channel.