# US 2019/0357014 A1 · Method for Establishing Local Network Connection, Terminal and Network Device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0357014 A1 - Document ID: US20190357014A1 - Status: Published application - Kind: A1 - Application number: 16/511,531 - Filed: 2019-07-15 - Published: 2019-11-21 - Earliest claimed: 2017-04-19 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Yong Hu; Qianghua Zhu; Fenqin Zhu - Web page: https://patentgrep.com/patent/US20190357014A1 ## CPC - H04W 4/029: Location-based management or tracking services - H04W 48/16: Discovering, processing access restriction or access information - H04W 8/08: Mobility data transfer - H04W 36/34: Reselection control - H04W 76/11: Allocation or use of connection identifiers - H04W 80/10: adapted for {application} session management, e.g. SIP [Session Initiation Protocol] {(connection management H04W76/00; arrangements for session management H04L67/14)} - H04W 48/12: using downlink control channel - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method for establishing a local network connection, where the method includes: obtaining, by a terminal, broadcast information sent by a base station; if the broadcast information includes a first local data network (LDN) list, determining a target local network identifier based on the first LDN list, where the first LDN list includes at least one local network identifier; and establishing, by the terminal, a session connection using the target local network identifier. ## Claims ### Claim 1 A communication method, performed by a control plane node, wherein the method comprises: obtaining first information, wherein the first information comprises local network access indication information or local network identification information; determining, based on the first information, local network information available to a user equipment (UE); and sending the local network information to the UE, wherein the control plane node comprises an access and mobility management function (AMF) entity or a Session Management Function (SMF) entity. ### Claim 2 (depends on 1) The method according to claim 1, wherein the method further comprises obtaining location area information of the UE. ### Claim 3 (depends on 2) The method according to claim 2, wherein determining the local network information available to the UE based on the first information comprises determining the local network information available to the UE based on local network information obtained by the control plane node, the local network access indication information, and the location area information of the UE. ### Claim 4 (depends on 3) The method according to claim 3, wherein when the local network access indication information indicates that the UE is allowed to access a local network, determining the local network information available to the UE comprises obtaining local network information corresponding to the location area information of the UE from configured local network information or from a first network element. ### Claim 5 (depends on 1) The method according to claim 1, wherein the method further comprises obtaining location area information of the UE. ### Claim 6 (depends on 5) The method according to claim 5, wherein determining local network information available to the UE based on the first information comprises determining the local network information available to the UE based on local network information obtained by the control plane node, the local network identification information, and the location area information of the UE. ### Claim 7 (depends on 6) The method according to claim 6, wherein determining the local network information available to the UE based on the local network information obtained by the control plane node, the local network identification information, and the location area information of the UE comprises: obtaining, based on the local network identification information, local network service coverage information corresponding to the local network identification information; and determining that the local network information available to the UE is the local network service coverage information when the local network information comprises the local network identification information and the local network service coverage information corresponding to the local network identification information comprises the location area information of the UE. ### Claim 8 A communications apparatus, comprising: at least one processor; and a computer readable medium in communication with the at least one processor, the computer readable medium storing computer readable instructions that, when executed by the at least one processor, cause the communications apparatus to: obtain first information, wherein the first information comprises local network access indication information or local network identification information; determine local network information available to user equipment (UE); and send the local network information to the UE, wherein the communications apparatus comprises an access and mobility management function (AMF) entity or a Session Management Function (SMF) entity. ### Claim 9 (depends on 8) The communications apparatus according to claim 8, wherein the computer readable instructions when further executed by the at least one processor, cause the communications apparatus to: obtain location area information of the UE; and determine the local network information available to the UE based on local network information obtained by the communications apparatus, the local network access indication information, and the location area information of the UE. ### Claim 10 (depends on 9) The communications apparatus according to claim 9, wherein the computer readable instructions when further executed by the at least one processor, cause the communications apparatus to: when the local network access indication information indicates that the UE is allowed to access a local network, obtain local network information corresponding to the location area information of the UE from configured local network information or from a first network element. ### Claim 11 (depends on 8) The communications apparatus according to claim 8, wherein the computer readable instructions when further executed by the at least one processor, cause the communications apparatus to obtain location area information of the UE. ### Claim 12 (depends on 11) The communications apparatus according to claim 11, wherein the computer readable instructions when further executed by the at least one processor, cause the communications apparatus to determine the local network information available to the UE based on local network information obtained by the communications apparatus, the local network identification information, and the location area information of the UE. ### Claim 13 (depends on 12) The communications apparatus according to claim 12, wherein the computer readable instructions when further executed by the at least one processor, cause the communications apparatus to: obtain, based on the local network identification information, local network service coverage information corresponding to the local network identification information; and determine that the local network information available to the UE is the local network service coverage information when the local network information comprises the local network identification information and the local network service coverage information corresponding to the local network identification information comprises the location area information of the UE. ### Claim 14 A communication system, comprising: a user equipment (UE); and a control plane node configured to: obtain first information, wherein the first information comprises local network access indication information or local network identification information; determine local network information available to the UE based on the first information; and send the local network information to the UE, wherein the UE is configured to receive the local network information from the control plane node, and wherein the control plane node comprises an access and mobility management function (AMF) entity or a Session Management Function (SMF) entity. ### Claim 15 (depends on 14) The communication system according to claim 14, wherein the control plane node is further configured to obtain location area information of the UE. ### Claim 16 (depends on 15) The communication system according to claim 15, wherein the control plane node is configured to determine the local network information available to the UE based on local network information obtained by the control plane node, the local network access indication information, and the location area information of the UE. ### Claim 17 (depends on 16) The communication system according to claim 16, wherein when the local network access indication information indicates that the UE is allowed to access a local network, the control plane node is configured to determine the local network information available to the UE by obtaining local network information corresponding to the location area information of the UE from configured local network information or from a first network element. ### Claim 18 (depends on 14) The communication system according to claim 14, wherein the control plane node is configured to obtain location area information of the UE, and wherein the control plane node is configured to determine the local network information available to the UE based on local network information obtained by the control plane node, the local network identification information, and the location area information of the UE. ### Claim 19 (depends on 18) The communication system according to claim 18, wherein the control plane node is configured to determine the local network information available to the UE by obtaining, based on the local network identification information, local network service coverage information corresponding to the local network identification information. ### Claim 20 (depends on 19) The communication system according to claim 19, wherein the control plane node is configured to determine that the local network information available to the UE is the local network service coverage information when the local network information comprises the local network identification information and the local network service coverage information corresponding to the local network identification information comprises the location area information of the UE.