Radio resource sharing

A method, comprising:

• controlling a radio receiver or radio transceiver of a second radio system to receive one or more transmissions by one or more devices of a first radio system, wherein said one or more transmissions include information about use of at least one radio resource for one or more other transmissions made by one or more devices of said first radio system, wherein said one or more other transmissions are outside the control of the second radio system and said at least one radio resource is also usable for transmissions controlled by the second radio system;
• and deciding about use of said at least one radio resource for one or more transmissions controlled by the second radio system, at least partly on the basis of said information.

13-17. (canceled)

An apparatus comprising:

• a processor and memory including computer program code, wherein the memory and computer program code are configured to, with the processor, cause the apparatus to:
• control a radio transmitter or radio transceiver of a device of a first radio system to transmit to a second radio system information about use of at least one radio resource for one or more transmissions outside the control of the second radio system, wherein said at least one radio resource is also usable for transmissions controlled by the second radio system.

(canceled)

An apparatus comprising:

• a processor and memory including computer program code, wherein the memory and computer program code are configured to, with the processor, cause the apparatus to:
• control a radio receiver or radio transceiver of a second radio system to receive one or more transmissions by one or more devices of a first radio system, wherein said one or more transmissions include information about use of at least one radio resource for one or more other transmissions made by one or more devices of said first radio system, wherein said one or more other transmissions are outside the control of the second radio system and said at least one radio resource is also usable for transmissions controlled by the second radio system;
• and decide about use of said at least one radio resource for one or more transmissions controlled by the second radio system, at least partly on the basis of said information.

An apparatus comprising:

• a processor and memory including computer program code, wherein the memory and computer program code are configured to, with the processor, cause the apparatus to:
• control a radio transmitter or radio transceiver of a second radio system to make one or more transmissions to one or more devices belonging to a first radio system, said one or more transmissions including information about the use of at least one radio resource for transmissions made under the control of the second radio system, wherein said at least one radio resource is also used by said first radio system for transmissions outside the control of said second radio system.

34-42. (canceled)