A location area management method performed by a core network controller, the method comprising: • receiving a location update request message sent by a user equipment, UE, in a first network standard, wherein the location update request message is carried in a location update trigger message, wherein the location update trigger message carries first location information of the first network standard and second location information of a second network standard, and there is a mapping relationship between the first location information and the second location information, and the first location information is used to indicate a location in which the UE is located when sending the location update request message in the first network standard; • generating a paging area list, wherein the paging area list comprises at least a first location area identity used to indicate a location area of the first network standard and a second location area identity used to indicate a location area of the second network standard, wherein the first network standard is a LTE network standard and the second network standard is a 2G/3G network standard, wherein the generating the paging area list comprises: ∘ determining according to the first location information the first location area identity used to indicate the location area of the first network standard, wherein the first location area identity is not determined based on the second location information; ∘ determining according to the second location information the second location area identity used to indicate the location area of the second network standard, wherein the second location area identity is not determined based on the first location information; and ∘ generating the paging area list according to the first location area identity and the second location area identity, and • adding the paging area list to a location update accept message and sending the location update accept message to the UE. • receiving a location update request message sent by a user equipment, UE, in a first network standard, wherein the location update request message is carried in a location update trigger message, wherein the location update trigger message carries first location information of the first network standard and second location information of a second network standard, and there is a mapping relationship between the first location information and the second location information, and the first location information is used to indicate a location in which the UE is located when sending the location update request message in the first network standard; • generating a paging area list, wherein the paging area list comprises at least a first location area identity used to indicate a location area of the first network standard and a second location area identity used to indicate a location area of the second network standard, wherein the first network standard is a LTE network standard and the second network standard is a 2G/3G network standard, wherein the generating the paging area list comprises: ∘ determining according to the first location information the first location area identity used to indicate the location area of the first network standard, wherein the first location area identity is not determined based on the second location information; ∘ determining according to the second location information the second location area identity used to indicate the location area of the second network standard, wherein the second location area identity is not determined based on the first location information; and ∘ generating the paging area list according to the first location area identity and the second location area identity, and ∘ determining according to the first location information the first location area identity used to indicate the location area of the first network standard, wherein the first location area identity is not determined based on the second location information; ∘ determining according to the second location information the second location area identity used to indicate the location area of the second network standard, wherein the second location area identity is not determined based on the first location information; and ∘ generating the paging area list according to the first location area identity and the second location area identity, and • adding the paging area list to a location update accept message and sending the location update accept message to the UE.