Authorized shared access carrier aggregation with sensing
A method for managing spectrum resources by a network node in a wireless communication system may include determining an availability of a first channel of a spectrum, and assigning a second channel to a secondary carrier in response to determining that the first channel is available. In the alternative, or in addition, the method may include unassigning the second channel to the secondary carrier in response to determining that the first channel is unavailable. The spectrum may be, or include, Authorized Shared Access (ASA) spectrum. The method may be performed by one or more nodes of a network that is a secondary user of the spectrum. The channel may be deemed unavailable when in use by a primary user of the ASA spectrum. A wireless communication apparatus include a processor coupled to a memory holding instructions for execution by the processor to cause the apparatus to perform operations as described above.
1. A method for managing authorized shared access (ASA) spectrum resources in a wireless communication system to reduce interference, the method comprising:
receiving a sensing result from a user equipment (UE),
wherein the ASA spectrum comprises a first channel and a second channel;
determining, based on receiving the sensing result, an availability of the first channel for use,
wherein the first channel is an intended candidate for use,
wherein the second channel is not an intended candidate for use,
wherein a use of the second channel indicates the availability of the first channel, and
wherein, when the sensing result indicates that the first channel is busy with activity, the first channel is determined to be unavailable; and
propagating an ASA indicator message indicating the availability of the first channel,
wherein the ASA indicator message is propagated via neighbor nodes via a backhaul protocol,
wherein the backhaul protocol comprises at least one of an X2 protocol or an Iu protocol, and
wherein, upon a node receiving the ASA indicator message from one of the neighbor nodes, the node performs one of:
assigning the first channel to at least one of a primary component carrier (PCC) or a secondary component carrier (SCC) when the first channel is available, or
unassigning the first channel to at least one of the PCC or the SCC when at least one of the first channel or the second channel is unavailable.
2. The method of claim 1 , further compromising at least one of:
activating the PCC or the SCC when the availability of the first channel indicates that the first channel is available, or
deactivating the PCC or the SCC when the availability of the first channel indicates that the first channel is unavailable.
3. The method of claim 1 ,
wherein the method further comprises:
transmitting simultaneously on the PCC and the SCC.
4. The method of claim 1 , wherein the first channel and the second channel have a predetermined usage correlation that indicates the availability of the first channel based on availability of the second channel.
5. The method of claim 1 ,
wherein the second channel is an uplink channel, and
wherein the first channel is a downlink channel.
6. The method of claim 1 , wherein the first channel is a channel used for communication by a mobile entity.
7. The method of claim 1 , wherein the availability of the first channel indicates that the first channel is available when transmissions are detected on the first channel.
8. The method of claim 1 , wherein the first channel and the second channel are ASA channels.
9. An apparatus for managing authorized shared access (ASA) spectrum resources in a wireless communication system to reduce interference, the apparatus comprising:
at least one processor configured to:
receive a sensing result from a user equipment (UE),
wherein the ASA spectrum comprises a first channel and a second channel,
determine, based on receiving the sensing result, an availability of the first channel for use,
wherein the first channel is an intended candidate for use,
wherein the second channel is not an intended candidate for use,
wherein a use of the second channel indicates the availability of the first channel, and
wherein, when the sensing result indicates that the first channel is busy with activity, the first channel is determined to be unavailable, and
propagate an ASA indicator message indicating the availability of the first channel,
wherein the ASA indicator message is propagated via neighbor nodes via a backhaul protocol,
wherein the backhaul protocol comprises at least one of an X2 protocol or an Iu protocol, and
wherein, upon a node receiving the ASA indicator message from one of the neighbor nodes, the node performs one of:
assigning the first channel to at least one of a primary component carrier (PCC) or a secondary component carrier (SCC) when the first channel is available, or
unassigning the first channel to at least one of the PCC or the SCC when at least one of the first channel or the second channel is unavailable; and
a memory coupled to the at least one processor for storing data.
10. The apparatus of claim 9 , wherein the at least one processor is further configured to:
activate the PCC or the SCC when the availability of the first channel indicates that the first channel is available, or
deactivate the PCC or the SCC when the availability of the first channel indicates that the first channel is unavailable.
11. The apparatus of claim 9 , wherein the at least one processor is further configured to:
transmit simultaneously on the PCC and the SCC.
12. The apparatus of claim 9 ,
wherein the first channel is a downlink channel, and
wherein the second channel is an uplink channel.
13. The apparatus of claim 9 , wherein the first channel and the second channel have a predetermined usage correlation that indicates the availability of the first channel based on availability of the second channel.
14. The apparatus of claim 9 , wherein the availability of the first channel indicates that the first channel is available when transmissions are detected on the first channel.
15. The apparatus of claim 9 , wherein the first channel and the second channel are ASA channels.
16. An apparatus for managing authorized shared access (ASA) spectrum resources in a wireless communication system to reduce interference, the apparatus comprising:
means for receiving a sensing result from a user equipment (UE),
wherein the ASA spectrum comprises a first channel and a second channel;
means for determining, based on receiving the sensing result, an availability of the first channel of a spectrum is available for use,
wherein the first channel is an intended candidate for use,
wherein the second channel is not an intended candidate for use,
wherein a use of the second channel indicates the availability of the first channel, and
wherein, when the sensing result indicates that the first channel is busy with activity, the first channel is determined to be unavailable; and
means for propagating an ASA indicator message indicating the availability of the first channel,
wherein the ASA indicator message is propagated via neighbor nodes via a backhaul protocol,
wherein the backhaul protocol comprises at least one of an X2 protocol or an Iu protocol, and
wherein, upon a node receiving the ASA indicator message from one of the neighbor nodes, the node performs one of:
assigning the first channel to at least one of a primary component carrier (PCC) or a secondary component carrier (SCC) when the first channel is available, or
unassigning the first channel to at least one of the PCC or the SCC when at least one of the first channel or the second channel is unavailable.
17. The apparatus of claim 16 , further comprising:
means for activating the PCC or the SCC when the availability of the first channel indicates that the first channel is available, or
means for deactivating the PCC or the SCC when the availability of the first channel indicates that the first channel is unavailable.
18. The apparatus of claim 16 , further comprising:
means for transmitting simultaneously on the PCC and the SCC.
19. The apparatus of claim 16 ,
wherein the first channel is a downlink channel, and
wherein the second channel is an uplink channel.
20. The apparatus of claim 16 , wherein the first channel and the second channel have a predetermined usage correlation that indicates the availability of the first channel based on availability of the second channel.
21. The apparatus of claim 16 , wherein the availability of the first channel indicates that the first channel is available when transmissions are detected on the first channel.
22. The apparatus of claim 16 , wherein the first channel and the second channel are ASA channels.
23. A non-transitory computer-readable medium storing instructions for managing authorized shared access (ASA) spectrum resources in a wireless communication system to reduce interference, the instructions comprising:
one or more instructions that, when executed by at least one computer, cause the at least one computer to:
receive a sensing result from a user equipment (UE),
wherein the ASA spectrum comprises a first channel and a second channel;
determine, based on receiving the sensing result, an availability of the first channel for use,
wherein the first channel is an intended candidate for use,
wherein the second channel is not an intended candidate for use,
wherein a use of the second channel indicates the availability of the first channel, and
wherein, when the sensing result indicates that the first channel is busy with activity, the first channel is determined to be unavailable; and
propagate an ASA indicator message indicating the availability of the first channel,
wherein the ASA indicator message is propagated via neighbor nodes via a backhaul protocol,
wherein the backhaul protocol comprises at least one of an X2 protocol or an Iu protocol, and
wherein, upon a node receiving the ASA indicator message from one of the neighbor nodes, the node performs one of:
assigning the first channel to at least one of a primary component carrier (PCC) or a secondary component carrier (SCC) when the first channel is available,
unassigning the first channel to at least one of the PCC or the SCC when at least one of the first channel or the second channel is unavailable.
24. The non-transitory computer-readable medium of claim 23 , wherein the instructions further comprise:
one or more instructions that, when executed by the at least one computer, cause the at least one computer to:
activate the PCC or the SCC when the availability of the first channel indicates that the first channel is available, or
deactivate the PCC or the SCC when the availability of the first channel indicates that the first channel is unavailable.
25. The non-transitory computer-readable medium of claim 23 , wherein the instructions further comprise:
one or more instructions that, when executed by the at least one computer, cause the at least one computer to:
transmit simultaneously on the PCC and the SCC.
26. The non-transitory computer-readable medium of claim 23 ,
wherein the first channel is a downlink channel, and
wherein the second channel is an uplink channel.
27. The non-transitory computer-readable medium of claim 23 , wherein the first channel and the second channel have a predetermined usage correlation that indicates the availability of the first channel based on availability of the second channel.
28. The non-transitory computer-readable medium of claim 23 , wherein the availability of the first channel indicates that the first channel is available when transmissions are detected on the first channel.
29. The non-transitory computer-readable medium of claim 23 , wherein the first channel and the second channel are ASA channels.