A method for quality of service assessment in a WiFi network, the method comprising: - an access point, of the WiFi network, receiving, from a user equipment, a request for a service; - the access point determining a service quality identifier based on the requested service; wherein determining the service quality identifier comprises mapping the requirements of the requested service in terms of at least: required bandwidth, latency and packet loss, to the available bandwidth, latency and packet loss that the access point can support for the requested service, and selecting a service quality identifier from a set of service quality identifiers on the basis of said mapping; - the access point sending, to a network node of a service provider, the service request including the service quality identifier; - the network node of the service provider analysing the received service quality identifier for determining whether or not the requested service can be supported; - if the requested service can be supported, transmitting a response to the user equipment informing that the service can be supported over the access point; - if the requested service cannot be supported, transmitting a response to the user equipment instructing the user or the user equipment to select another access point; - if the requested service can be supported over the access point, establishing a service connection with the network node over the access point to start at least one of using and consuming the requested service; the method characterized by: - monitoring, by the access point, its available capacity and determining a new service quality identifier if the available capacity changes; and - sending the new service quality identifier to the network node of the service provider; - analyzing, by the network node of the service provider, the received new service quality identifier for determining whether or not the requested service can be supported; and - if the network node determines that the requested service cannot be supported based upon the new service quality identifier, - receiving, by the user equipment, from the network node, a request to reselect a new access point. - an access point, of the WiFi network, receiving, from a user equipment, a request for a service; - the access point determining a service quality identifier based on the requested service; wherein determining the service quality identifier comprises mapping the requirements of the requested service in terms of at least: required bandwidth, latency and packet loss, to the available bandwidth, latency and packet loss that the access point can support for the requested service, and selecting a service quality identifier from a set of service quality identifiers on the basis of said mapping; - the access point sending, to a network node of a service provider, the service request including the service quality identifier; - the network node of the service provider analysing the received service quality identifier for determining whether or not the requested service can be supported; - if the requested service can be supported, transmitting a response to the user equipment informing that the service can be supported over the access point; - if the requested service cannot be supported, transmitting a response to the user equipment instructing the user or the user equipment to select another access point; - if the requested service can be supported over the access point, establishing a service connection with the network node over the access point to start at least one of using and consuming the requested service; - monitoring, by the access point, its available capacity and determining a new service quality identifier if the available capacity changes; and - sending the new service quality identifier to the network node of the service provider; - analyzing, by the network node of the service provider, the received new service quality identifier for determining whether or not the requested service can be supported; and - if the network node determines that the requested service cannot be supported based upon the new service quality identifier, - receiving, by the user equipment, from the network node, a request to reselect a new access point.