ENHANCED LINK ADVERTISING IN MULTI-LINK OPERATION

In wireless networks implementing multilink transmissions, a non-AP Multi-Link Device, MLD, discovers an AP MLD and registers to it. To reduce risks of registration refusal from the AP MLD, the invention proposes mechanisms to enhance link advertising in exchanged management frames. In embodiments, the beacon frames or probe response frames during ML discovery categorize the Per-STA profiles of the reported affiliated APs. Such categorization is a recommendation from the AP MLD to promote or favor some links or affiliated APs compared to others. Lists of profiles per category can be provided or each profile can be tagged with a dedicated categorizing score. In other embodiments, the non-AP MLD indicates one or more backup links as alternatives to one or more of the setup links requested for ML setup. This allows the AP MLD to switch on a backup link in case a setup link is to be refused.