TD LTE secondary component carrier in unlicensed bands
A method is provided for communication in a wireless telecommunication system. The method comprises adaptively designating, by a network element following a frame-based communication protocol, for use as a secondary component carrier in a carrier aggregation scheme, at least a portion of radio resources on an unlicensed band.
1. A method performed by a first network element of a wireless telecommunication system, the method comprising:
determining, by the first network element, an order for a plurality of component carriers (CC) corresponding to wireless channels according to a rank;
selecting, by the first network element, one of the plurality of CCs having a highest rank according to the rank for the plurality of CCs;
sending, by the first network element to a second network element, data describing the selected one of the plurality of CCs having the highest rank;
receiving, by the first network element from the second network element, a confirmation indicating that traffic from a first CC is permitted to be offloaded onto the selected one of the plurality of CCs having the highest rank; and
enabling, by the first network element, traffic from the first CC to be offloaded onto the selected one of the plurality of CCs having the highest rank in response to receiving the confirmation from the second network element.
2. The method of claim 1 , further comprising:
sending, by the first network element to the second network element, data describing a second CC of the plurality of CCs having a next highest rank according to the rank for the plurality of CCs, wherein the second CC is different from the first CC and the selected one of the plurality of CCs;
receiving, by the first network element from the second network element, a negative confirmation indicating that traffic from the first CC is not permitted to be offloaded onto the second CC of the plurality of CCs; and
selecting, by the first network element, another CC of the plurality of CCs having a next highest rank according to the rank for the plurality of CCs in response to receiving the negative confirmation from the second network element, wherein the other CC of the plurality of CCs is different from the first CC, the second CC, and the selected one of the plurality of CCs.
3. The method of claim 1 , wherein the plurality of CCs are ordered according to the rank based on measurement feedback received from one or more User Equipment (UE), wherein the measurement feedback comprises at least one of Wi-Fi beacon transmission parameters, path loss, traffic load of a Wi-Fi system, or a maximum access control (MAC) payload size set by a Wi-Fi access point (AP).
4. The method of claim 1 , wherein the second network element is at least one of a self-organizing network entity or a network server.
5. The method of claim 1 , wherein the second network element is a home Evolved Universal Terrestrial Radio Access Network (E-UTRAN) node B (eNB) (HeNB) gateway.
6. The method of claim 1 , wherein the one of the plurality of CCs having the highest rank corresponds to a CC in an unlicensed band.
7. A first network element, comprising:
at least one memory device; and
a processor configured to execute instructions stored on the at least one memory device such that when executed, cause the first network element to:
determine an order for a plurality of component carriers (CC) corresponding to wireless channels according to a rank;
select one of the plurality of CCs having a highest rank according to the rank for the plurality of CCs;
transmit data describing the selected one of the plurality of CCs having the highest rank to a second network element;
receive, from the second network element, a confirmation indicating that traffic from a first CC is permitted to be offloaded onto the selected one of the plurality of CCs having the highest rank; and
enable traffic from the first CC to be offloaded onto the selected one of the plurality of CCs having the highest rank in response to receiving the confirmation from the second network element.
8. The first network element of claim 7 , wherein the processor is further configured to execute the instructions stored on the at least one memory device such that when executed, cause the first network element to:
send, to the second network element, data describing a second CC of the plurality of CCs having a next highest rank according to the rank for the plurality of CCs, wherein the second CC is different from the first CC and the selected one of the plurality of CCs;
receive, from the second network element, a negative confirmation indicating that traffic from the first CC is not permitted to be offloaded onto the second CC of the plurality of CCs; and
select another CC of the plurality of CCs having a next highest rank according to the rank for the plurality of CCs in response to receiving the negative confirmation from the second network element, wherein the other CC of the plurality of CCs is different from the first CC, the second CC, and the selected one of the plurality of CCs.
9. The first network element of claim 7 , wherein the plurality of CCs are ordered according to the rank based on measurement feedback received from one or more User Equipment (UE), wherein the measurement feedback comprises at least one of Wi-Fi beacon transmission parameters, path loss, traffic load of a Wi-Fi system, or a maximum access control (MAC) payload size set by a Wi-Fi access point (AP).
10. The first network element of claim 7 , wherein the second network element is at least one of a self-organizing network entity or a network server.
11. The first network element of claim 7 , wherein the second network element is a home Evolved Universal Terrestrial Radio Access Network (E-UTRAN) node B (eNB) (HeNB) gateway.
12. The first network element of claim 7 , wherein the one of the plurality of CCs having the highest rank corresponds to a CC in an unlicensed band.
13. A non-transitory computer medium storing instructions executable by a processor of a first network element such that when executed, cause the first network element to perform a method, the method comprising:
determining, by the first network element, an order for a plurality of component carriers (CC) corresponding to wireless channels according to a rank;
selecting, by the first network element, one of the plurality of CCs having a highest rank according to the rank for the plurality of CCs;
sending, by the first network element to a second network element, data describing the selected one of the plurality of CCs having the highest rank;
receiving, by the first network element from the second network element, the confirmation indicating that traffic from a first CC is permitted to be offloaded onto the selected one of the plurality of CCs having the highest rank; and
enabling, by the first network element, traffic from the first CC to be offloaded onto the selected one of the plurality of CCs having the highest rank in response to receiving the confirmation from the second network element.
14. The non-transitory computer medium of claim 13 , wherein the method further comprises:
sending, by the first network element to the second network element, data describing a second CC of the plurality of CCs having a next highest rank according to the rank for the plurality of CCs, wherein the second CC is different from the first CC and the selected one of the plurality of CCs;
receiving, by the first network element from the second network element, a negative confirmation indicating that traffic from the first CC is not permitted to be offloaded onto the second CC of the plurality of CCs having the highest rank; and
selecting, by the first network element, another CC of the plurality of CCs having a next highest rank according to the rank for the plurality of CCs in response to receiving the negative confirmation from the second network element, wherein the other CC of the plurality of CCs is different from the first CC, the second CC, and the selected one of the plurality of CCs.
15. The non-transitory computer medium of claim 13 , wherein the plurality of CCs are ordered according to the rank based on measurement feedback received from one or more User Equipment (UE), wherein the measurement feedback comprises at least one of Wi-Fi beacon transmission parameters, path loss, traffic load of a Wi-Fi system, or a maximum access control (MAC) payload size set by a Wi-Fi access point (AP).
16. The non-transitory computer medium of claim 13 , wherein the second network element is at least one of a self-organizing network entity, a network server, or a home Evolved Universal Terrestrial Radio Access Network (E-UTRAN) node B (eNB) (HeNB) gateway.
17. The non-transitory computer medium of claim 13 , wherein the one of the plurality of CCs having the highest rank corresponds to a CC in an unlicensed band.