Measurement-based control of multi-link operation
On a first channel, an access point ( 10 ) of the wireless communication system maintains a first wireless link to a first wireless station ( 11 ). On a second channel, the access point ( 10 ) maintains a second wireless link to a second wireless station ( 11 ). Further, the access point receives a measurement report from the first wireless station ( 11 ). The measurement report represents a level of interference from the second channel to the first channel. Based on the measurement report, the access point ( 10 ) controls multi-link operation on the first wireless link and the second wireless link.
1 . A method of controlling wireless transmissions in a wireless communication system, the method comprising:
on a first channel, an access point of the wireless communication system maintaining a first wireless link to a first wireless station;
on a second channel, the access point maintaining a second wireless link to a second wireless station;
the access point receiving a measurement report from the first wireless station, the measurement report representing a level of interference from the second channel to the first channel; and
based on the measurement report, the access point controlling multi-link operation on the first wireless link and the second wireless link, wherein said controlling multi-link operation on the first wireless link and the second wireless link comprises selecting a type of multi-link operation.
2 . The method of claim 1 ,
wherein the measurement report is based on at least one measurement performed by the first wireless station on the first channel during a wireless transmission on the second channel.
3 . The method of claim 2 , comprising:
the access point requesting the first wireless station to perform a measurement of the level of interference concurrently with an uplink wireless transmission on the second channel from the second wireless station to the access point and to send the measurement report based on the requested measurement.
4 . The method of claim 2 , comprising:
the access point instructing the second wireless station to perform an uplink wireless transmission on the second channel.
5 . The method of claim 2 , comprising:
the access point performing a downlink wireless transmission to the second wireless station on the second channel; and
the access point requesting the first wireless station to perform a measurement of the level of interference concurrently with the downlink wireless transmission on the second channel and to send the measurement report based on the requested measurement.
6 . The method of claim 1 , comprising:
the access point receiving a further measurement report from the second wireless station, the further measurement report representing a level of interference from the first channel to the second channel,
wherein said controlling of the multi-link operation is further based on the further measurement report.
7 . The method of claim 6 ,
wherein the further measurement report is based on at least one measurement performed by the second wireless station on the second channel during at least one wireless transmission on the first channel.
8 . The method of claim 1 ,
wherein the access point requests the first wireless station to send the measurement report.
9 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises switching the first wireless link from the first channel to another channel.
10 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises switching the second wireless link from the second channel to another channel.
11 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises synchronizing a downlink wireless transmission on the first wireless link with a downlink wireless transmission on the second wireless link.
12 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises synchronizing an uplink wireless transmission on the first wireless link with an uplink wireless transmission on the second wireless link.
13 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises adjusting one or more transmit parameters of a downlink wireless transmission on the first wireless link and/or adjusting one or more transmit parameters of a downlink wireless transmission on the second wireless link.
14 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises adjusting one or more transmit parameters of an uplink wireless transmission on the first wireless link and/or adjusting one or more transmit parameters of an uplink wireless transmission on the second wireless link.
15 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises sequentially performing a downlink wireless transmission on the first wireless link and a downlink wireless transmission on the second wireless link.
16 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises sequentially performing an uplink wireless transmission on the first wireless link and an uplink wireless transmission on the second wireless link.
17 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises restricting uplink access of the first wireless station to the first channel.
18 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises restricting uplink access of the second wireless station to the second channel.
19 . The method of claim 1 ,
wherein said controlling the multi-link operation comprises avoiding to perform a downlink wireless transmission on the first wireless link concurrently with an uplink wireless transmission on the second wireless link or avoiding to perform a downlink wireless transmission on the second wireless link concurrently with an uplink wireless transmission on the first wireless link.
20 . An access point for a wireless communication system, the access point comprising radio circuitry and processing circuitry operatively coupled to the radio circuitry, the processing circuitry being configured to use the radio circuitry to:
on a first channel, maintain a first wireless link to a first wireless station;
on a second channel, maintain a second wireless link to a second wireless station;
receive a measurement report from the first wireless station, the measurement report representing a level of interference from the second channel to the first channel; and
based on the measurement report, control multi-link operation on the first wireless link and the second wireless link by selecting a type of multi-link operation.