Considerations for multi-link aggregation
Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for improved handling of adjacent channel interference in multi-link aggregation scenarios. In accordance with the described techniques, a device may establish a set of wireless links for communication with a second device, the set of wireless links supporting parallel transmission during at least a first duration of a multi-link session, the set of wireless links including at least a first wireless link and a second wireless link. The device may modify a transmission parameter for the first wireless link or a clear channel assessment (CCA) parameter for the second wireless link, or a combination thereof. The device may then perform the CCA procedure on the second wireless link and transmit at least a first portion of the message on the first wireless link based on the modified transmission parameter or modified CCA parameter.
1 . A method for wireless communication at a first wireless device, comprising:
establishing a plurality of wireless links between the first wireless device and a second wireless device, the plurality of wireless links supporting parallel transmissions during a multi-link session and comprising at least a first wireless link and a second wireless link that is different from the first wireless link;
transmitting a first data unit comprising a first portion of a message via the first wireless link and a second data unit comprising a second portion of the message via the second wireless link, the first data unit and the second data unit having aligned end times; and
receiving, via the first wireless link, a response corresponding to at least the second data unit transmitted via the second wireless link.
2 . The method of claim 1 , further comprising:
transmitting a signal to solicit an acknowledgement or a negative acknowledgement for the first data unit, or the second data unit, or a combination thereof.
3 . The method of claim 2 , wherein transmitting the signal to solicit the acknowledgement further comprises:
transmitting a block acknowledgement request to solicit the acknowledgement for at least the first data unit and the second data unit, wherein the response comprises the acknowledgement.
4 . The method of claim 3 , further comprising:
receiving a block acknowledgement based on the block acknowledgement request.
5 . The method of claim 1 , further comprising:
aligning the first data unit and the second data unit to a same start time.
6 . The method of claim 1 , wherein the first wireless link has a first primary channel and the second wireless link has a second primary channel.
7 . The method of claim 1 , wherein receiving the response further comprises:
receiving an acknowledgement or a negative acknowledgement of the first data unit and the second data unit.
8 . The method of claim 1 , wherein:
the first wireless link comprises a first wireless channel in a first radio frequency spectrum band; and
the second wireless link comprises a second wireless channel in the first radio frequency spectrum band or a second radio frequency spectrum band.
9 . The method of claim 1 , further comprising:
receiving, via the first wireless link, a second response corresponding to the first data unit transmitted via the first wireless link.
10 . A first wireless device for wireless communication, comprising:
one or more memories storing processor-executable code; and
one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the first wireless device to:
establish a plurality of wireless links between the first wireless device and a second wireless device, the plurality of wireless links supporting parallel transmissions during a multi-link session and comprising at least a first wireless link and a second wireless link that is different from the first wireless link;
transmit a first data unit comprising a first portion of a message via the first wireless link and a second data unit comprising a second portion of the message via the second wireless link, the first data unit and the second data unit having aligned end times; and
receive, via the first wireless link, a response corresponding to at least the second data unit transmitted via the second wireless link.
11 . The first wireless device of claim 10 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the first wireless device to:
transmit a signal to solicit an acknowledgement or a negative acknowledgement for the first data unit, or the second data unit, or a combination thereof.
12 . The first wireless device of claim 11 , wherein, to transmit the signal to solicit the acknowledgement, the one or more processors are individually or collectively further operable to execute the code to cause the first wireless device to:
transmit a block acknowledgement request to solicit the acknowledgement for at least the first data unit and the second data unit, wherein the response comprises the acknowledgement.
13 . The first wireless device of claim 12 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the first wireless device to:
receive a block acknowledgement based on the block acknowledgement request.
14 . The first wireless device of claim 10 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the first wireless device to:
align the first data unit and the second data unit to a same start time.
15 . The first wireless device of claim 10 , wherein the first wireless link has a first primary channel and the second wireless link has a second primary channel.
16 . The first wireless device of claim 10 , wherein, to receive the response, the one or more processors are individually or collectively further operable to execute the code to cause the first wireless device to:
receive an acknowledgement or a negative acknowledgement of the first data unit and the second data unit.
17 . The first wireless device of claim 10 , wherein:
the first wireless link comprises a first wireless channel in a first radio frequency spectrum band; and
the second wireless link comprises a second wireless channel in the first radio frequency spectrum band or a second radio frequency spectrum band.
18 . The first wireless device of claim 10 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the first wireless device to:
receive, via the first wireless link, a second response corresponding to the first data unit transmitted via the first wireless link.
19 . A non-transitory computer-readable medium storing code for wireless communication at a first wireless device, the code comprising instructions executable by one or more processors to:
establish a plurality of wireless links between the first wireless device and a second wireless device, the plurality of wireless links supporting parallel transmissions during a multi-link session and comprising at least a first wireless link and a second wireless link that is different from the first wireless link;
transmit a first data unit comprising a first portion of a message via the first wireless link and a second data unit comprising a second portion of the message via the second wireless link, the first data unit and the second data unit having aligned end times; and
receive, via the first wireless link, a response corresponding to at least the second data unit transmitted via the second wireless link.
20 . The non-transitory computer-readable medium of claim 19 , wherein the instructions are further executable by the one or more processors to:
transmit a signal to solicit an acknowledgement or a negative acknowledgement for the first data unit, or the second data unit, or a combination thereof.
21 . The non-transitory computer-readable medium of claim 20 , wherein the instructions to transmit the signal to solicit the acknowledgement are further executable by the one or more processors to:
transmit a block acknowledgement request to solicit the acknowledgement for at least the first data unit and the second data unit, wherein the response comprises the acknowledgement.
22 . The non-transitory computer-readable medium of claim 21 , wherein the instructions are further executable by the one or more processors to:
receive a block acknowledgement based on the block acknowledgement request.
23 . The non-transitory computer-readable medium of claim 19 , wherein the instructions are further executable by the one or more processors to:
align the first data unit and the second data unit to a same start time.
24 . The non-transitory computer-readable medium of claim 19 , wherein the first wireless link has a first primary channel and the second wireless link has a second primary channel.
25 . The non-transitory computer-readable medium of claim 19 , wherein the instructions to receive the response are further executable by the one or more processors to:
receive an acknowledgement or a negative acknowledgement of the first data unit and the second data unit.
26 . The non-transitory computer-readable medium of claim 19 , wherein:
the first wireless link comprises a first wireless channel in a first radio frequency spectrum band; and
the second wireless link comprises a second wireless channel in the first radio frequency spectrum band or a second radio frequency spectrum band.
27 . The non-transitory computer-readable medium of claim 19 , wherein the instructions are further executable by the one or more processors to:
receive, via the first wireless link, a second response corresponding to the first data unit transmitted via the first wireless link.
28 . A first wireless device for wireless communication, comprising:
means for establishing a plurality of wireless links between the first wireless device and a second wireless device, the plurality of wireless links supporting parallel transmissions during a multi-link session and comprising at least a first wireless link and a second wireless link that is different from the first wireless link;
means for transmitting a first data unit comprising a first portion of a message via the first wireless link and a second data unit comprising a second portion of the message via the second wireless link, the first data unit and the second data unit having aligned end times; and
means for receiving, via the first wireless link, a response corresponding to at least the second data unit transmitted via the second wireless link.
29 . The first wireless device of claim 28 , further comprising:
means for transmitting a signal to solicit an acknowledgement or a negative acknowledgement for the first data unit, or the second data unit, or a combination thereof.
30 . The first wireless device of claim 28 , further comprising:
means for receiving, via the first wireless link, a second response associated with the first data unit transmitted via the first wireless link.