Signaling for link aggregation setup and reconfiguration
Methods, systems, and devices for wireless communication are described. A wireless device may identify an aggregation capability to communicate in parallel over a plurality of wireless links. The wireless device may in some cases broadcast this aggregation capability (e.g., periodically). Additionally or alternatively, the wireless device may transmit the aggregation capability in response to a request received from another wireless device. In some cases, the first wireless device may transmit a request to a second wireless device inquiring about aggregation capabilities of the second wireless device. The second wireless device may respond with its aggregation capabilities (e.g., or may broadcast its aggregation capabilities independently of receiving the response). The wireless devices may establish a multi-link session based at least in part on the indicated aggregation capabilities.
1. An apparatus for wireless communication, comprising:
a processor;
memory in electronic communication with the processor; and
instructions stored in the memory and operable, when executed by the processor to cause the apparatus to:
identify first aggregation capability information indicating a capability of a first wireless device to communicate in parallel over a plurality of wireless links and indicating an association between one or more first traffic identifiers (TIDs) and the plurality of wireless links;
receive second aggregation capability information from a second wireless device, the second aggregation capability information indicating a capability of the second wireless device to communicate in parallel over the plurality of wireless links and indicating an association between one or more second TIDs and the plurality of wireless links;
identify, based at least in part on the first aggregation capability information and the second aggregation capability information, an association between a first set of one or more TIDs and a first set of one or more wireless links of the plurality of wireless links and between a second set of one or more TIDs and a second set of one or more wireless links of the plurality of wireless links; and
establish the multi-link session between the first wireless device and the second wireless device based at least in part on the identified first aggregation capability information, the received second aggregation capability information, and the association.
2. The apparatus of claim 1 , wherein the instructions are further executable by the processor to:
transmit a request for the second aggregation capability information of the second wireless device, wherein the second aggregation capability information is received from the second wireless device based at least in part on the transmitted request.
3. The apparatus of claim 1 , wherein the instructions are further executable by the processor to:
receive a management frame, a control frame, or a data frame that includes the second aggregation capability information.
4. The apparatus of claim 3 , wherein the management frame, the control frame, or the data frame comprises a beacon, or a probe response, or an association response, or a dedicated action frame, or a control field in the management frame, or a control field in the control frame, or a control field in the data frame, or a combination thereof.
5. The apparatus of claim 1 , wherein the instructions are further executable by the processor to:
receive a request for the first aggregation capability information from the second wireless device; and
transmit, to the second wireless device in response to the received request, the first aggregation capability information of the first wireless device.
6. The apparatus of claim 5 , wherein the first aggregation capability information comprises an indication of a duration for which the first wireless device is willing to communicate in parallel over the plurality of wireless links.
7. The apparatus of claim 5 , wherein the instructions are further executable by the processor to:
receive a management frame, a control frame, or a data frame that includes the request for the first aggregation capability information.
8. The apparatus of claim 7 , wherein the management frame, the control frame, or the data frame comprises a probe request, or an association request, or a dedicated action frame, or a control field in the management frame, or a control field in the control frame, or a control field in the data frame, or a combination thereof.
9. The apparatus of claim 5 , wherein the second aggregation capability information is received with the received request for the first aggregation capability information.
10. The apparatus of claim 1 , wherein the instructions are further executable by the processor to:
advertise the first aggregation capability information of the first wireless device.
11. The apparatus of claim 1 , wherein the first aggregation capability information, or the second aggregation capability information, or both comprise an aggregation type, or link identification information, or a receive queue size, or a block acknowledgement bitmap size, or an indication of fragmentation support, or a combination thereof.
12. The apparatus of claim 1 , wherein at least one of the plurality of wireless links comprises a channel in a shared radio frequency spectrum band.
13. A method for wireless communication, comprising:
identifying first aggregation capability information indicating a capability of a first wireless device to communicate in parallel over a plurality of wireless links and indicating an association between one or more first traffic identifiers (TIDs) and the plurality of wireless links;
receiving second aggregation capability information from a second wireless device, the second aggregation capability information indicating a capability of the second wireless device to communicate in parallel over the plurality of wireless links and indicating an association between one or more second TIDs and the plurality of wireless links;
identifying based at least in part on the first aggregation capability information and the second aggregation capability information, an association between a first set of one or more TIDs and a first set of one or more wireless links of the plurality of wireless links and between a second set of one or more TIDs and a second set of one or more wireless links of the plurality of wireless links; and
establishing the multi-link session between the first wireless device and the second wireless device based at least in part on the identified first aggregation capability information, the received second aggregation capability information, and the association.
14. The method of claim 13 , further comprising:
transmitting a request for the second aggregation capability information of the second wireless device, wherein the second aggregation capability information is received from the second wireless device based at least in part on the transmitted request.
15. The method of claim 13 , further comprising:
receiving a request for the first aggregation capability information from the second wireless device; and
transmitting, to the second wireless device in response to the received request, the first aggregation capability information of the first wireless device.
16. An apparatus for wireless communication, comprising:
means for identifying first aggregation capability information indicating a capability of a first wireless device to communicate in parallel over a plurality of wireless links and indicating an association between one or more first traffic identifiers (TIDs) and the plurality of wireless links;
means for receiving second aggregation capability information from a second wireless device, the second aggregation capability information indicating a capability of the second wireless device to communicate in parallel over the plurality of wireless links and indicating an association between one or more second TIDs and the plurality of wireless links;
means for identifying based at least in part on the first aggregation capability information and the second aggregation capability information, an association between a first set of one or more TIDs and a first set of one or more wireless links of the plurality of wireless links and between a second set of one or more TIDs and a second set of one or more wireless links of the plurality of wireless links; and
means for establishing the multi-link session between the first wireless device and the second wireless device based at least in part on the identified first aggregation capability information, the received second aggregation capability information, and the association.
17. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to:
identify first aggregation capability information indicating a capability of a first wireless device to communicate in parallel over a plurality of wireless links and indicating an association between one or more first traffic identifiers (TIDs) and the plurality of wireless links;
receive second aggregation capability information from the second wireless device, the second aggregation capability information indicating a capability of a second wireless device to communicate in parallel over the plurality of wireless links and indicating an association between one or more second TIDs and the plurality of wireless links;
identify, based at least in part on the first aggregation capability information and the second aggregation capability information, an association between a first set of one or more TIDs and a first set of one or more wireless links of the plurality of wireless links and between a second set of one or more TIDs and a second set of one or more wireless links of the plurality of wireless links; and
establish the multi-link session between the first wireless device and the second wireless device based at least in part on the identified first aggregation capability information, the received second aggregation capability information, and the association.
18. The apparatus of claim 1 , wherein the instructions to identify the association comprise instructions to:
identify that each TID of the first set of one or more TIDs is associated with each of the plurality of links and that each TID of the second set of one or more TIDs is associated with each of the plurality of links.
19. The apparatus of claim 1 , wherein the instructions to identify the association comprise instructions to:
identify that the first set of one or more TIDs comprises a first subset of the plurality of TIDs, wherein the first set of one or more links comprises a first subset of the plurality of links; and
identify that the second set of one or more TIDs comprises a second subset of the plurality of TIDs different from the first subset of the plurality of TIDs, wherein the second set of one or more links comprises a second subset of the plurality of links.
20. The apparatus of claim 1 , wherein the instructions to identify the association comprise instructions to:
identify that the first set of one or more TIDs or the second set of one or more TIDs comprises a plurality of all available TIDs; and
identify that the first set of one or more links or the second set of one or more links comprises a subset of the plurality of links.
21. The apparatus of claim 1 , wherein the instructions to identify the association comprise instructions to:
identify that the first set of one or more TIDs or the second set of one or more TIDs comprises a subset of a plurality available TIDs; and
identify that the first set of one or more links or the second set of one or more links comprises the plurality of links.