A method for configuring UE and a related network function entity or node at a network side, the method comprising: determining an attribute of a User Equipment, UE, when the UE accesses the network; determining a configuration parameter corresponding to the UE based upon the attribute of the UE, wherein the configuration parameter comprises any one or more of: a mobility state allowed for the UE, a mobility state of the network side, and a transmission tunnel type of the network side; and indicating the UE to configure or configuring the UE, according to the configuration parameter, and/or indicating a related network function entity or node to configure, or configuring the related network function entity or the node at the network side, according to the configuration parameter; wherein the attribute of the UE comprises a capability of the UE and a set of mobility states of the UE, and the determining the configuration parameter corresponding to the UE based upon the attribute of the UE comprises: obtaining the determined set of mobility states of the UE; determining whether the obtained set of mobility states of the UE is appropriate, according to a part or all of: a mobility limitation, a mobility model, a reachability requirement, and the capability of the UE; and determining a set of Non-Access Stratum, NAS, mobility states of the network side upon determining that the obtained set of mobility states of the UE is appropriate; and after the determining the set of NAS mobility states of the network side, the method further comprises: generating a Radio Resource Control, RRC, layer mobility state, or assisting an access network node in determining a mobility state parameter, according to a part or all of: the set of mobility states, the mobility limitation, and the mobility model, of the UE. determining an attribute of a User Equipment, UE, when the UE accesses the network; determining a configuration parameter corresponding to the UE based upon the attribute of the UE, wherein the configuration parameter comprises any one or more of: a mobility state allowed for the UE, a mobility state of the network side, and a transmission tunnel type of the network side; and indicating the UE to configure or configuring the UE, according to the configuration parameter, and/or indicating a related network function entity or node to configure, or configuring the related network function entity or the node at the network side, according to the configuration parameter; wherein the attribute of the UE comprises a capability of the UE and a set of mobility states of the UE, and the determining the configuration parameter corresponding to the UE based upon the attribute of the UE comprises: obtaining the determined set of mobility states of the UE; determining whether the obtained set of mobility states of the UE is appropriate, according to a part or all of: a mobility limitation, a mobility model, a reachability requirement, and the capability of the UE; and determining a set of Non-Access Stratum, NAS, mobility states of the network side upon determining that the obtained set of mobility states of the UE is appropriate; and after the determining the set of NAS mobility states of the network side, the method further comprises: generating a Radio Resource Control, RRC, layer mobility state, or assisting an access network node in determining a mobility state parameter, according to a part or all of: the set of mobility states, the mobility limitation, and the mobility model, of the UE. obtaining the determined set of mobility states of the UE; determining whether the obtained set of mobility states of the UE is appropriate, according to a part or all of: a mobility limitation, a mobility model, a reachability requirement, and the capability of the UE; and determining a set of Non-Access Stratum, NAS, mobility states of the network side upon determining that the obtained set of mobility states of the UE is appropriate; and after the determining the set of NAS mobility states of the network side, the method further comprises: generating a Radio Resource Control, RRC, layer mobility state, or assisting an access network node in determining a mobility state parameter, according to a part or all of: the set of mobility states, the mobility limitation, and the mobility model, of the UE. generating a Radio Resource Control, RRC, layer mobility state, or assisting an access network node in determining a mobility state parameter, according to a part or all of: the set of mobility states, the mobility limitation, and the mobility model, of the UE.