# US 11,122,540 B2 · Light connection control method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,122,540 B2 - Document ID: US11122540B2 - Status: Granted - Kind: B2 - Application number: 16/802,393 - Filed: 2020-02-26 - Published: 2020-06-18 - Granted: 2021-09-14 - Earliest claimed: 2016-05-13 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd - Inventors: Xiaowan Ke; Hong Wang; Lixiang Xu - Web page: https://patentgrep.com/patent/US11122540B2 ## CPC - H04W 68/02: Arrangements for increasing efficiency of notification or paging channel - H04W 8/02: Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks - H04W 68/00: User notification, e.g. alerting and paging, for incoming communication, change of service or the like - H04W 76/10: Connection setup - H04W 76/25: Maintenance of established connections - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - H04W 76/19: Connection re-establishment - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present application provides a method for light connection control for a User Equipment (UE), comprising the following steps of: acquiring, by a first radio access network node, light connection information for a UE; storing, by the first radio access network node, the acquired light connection Information; and, performing, by the first radio access network node, light connection control of the UE based on the acquired light connection information for the UE. By adopting the technical scheme disclosed in the present application, the signaling overhead can be saved, and the delay of the UE access network can be reduced. ## Claims ### Claim 1 A method performed by a first base station in a communication system, the method comprising: receiving, from a core network, inactive state assistance information; determining whether a user equipment (UE) is moved to an inactive state based on the inactive state assistance information; transmitting, to the UE, a control message for entering into the inactive state for the UE, the control message including an identifier associated with a context of the UE in the inactive state, in case that the UE is moved to the inactive state based on the inactive state assistance information; and transmitting, to a second base station, a paging message including the identifier associated with the context of the UE in the inactive state, wherein the inactive state is a state in which a connection between the UE and the core network is maintained, a connection between the UE and a base station is suspended, and the context of the UE is maintained. ### Claim 2 (depends on 1) The method of claim 1, wherein the control message further includes paging area information and paging cycle information. ### Claim 3 (depends on 2) The method of claim 2, wherein the paging area information includes at least one of a list of tracking areas or a list of cell identities. ### Claim 4 (depends on 1) The method of claim 1, wherein the inactive state assistance information includes at least one of discontinuous reception (DRX) information or mobility area information. ### Claim 5 (depends on 1) The method of claim 1, wherein the paging message further includes paging priority information. ### Claim 6 (depends on 1) The method of claim 1, further comprising: receiving, from the UE, capability information including information indicating the UE supports the inactive state. ### Claim 7 (depends on 1) The method of claim 1, further comprising: receiving, from the second base station, a request message for a retrieval of the context of the UE; and transmitting, to the second base station, a response message as a response to the request message, the response message including the context of the UE. ### Claim 8 A method performed by a second base station in a communication system, the method comprising: receiving, from a first base station, a first paging message including an identifier associated with a context of a user equipment (UE) in an inactive state; transmitting, to the UE, a second paging message for the UE based on the first paging message, the second paging message including the identifier associated with the context of the UE in the inactive state; and receiving, from the UE, a control message for requesting resumption of a radio resource control (RRC) connection, wherein the inactive state is a state in which a connection between the UE and a core network is maintained, a connection between the UE and a base station is suspended, and the context of the UE is maintained. ### Claim 9 (depends on 8) The method of claim 8, further comprising: transmitting, to the first base station, a request message for a retrieval of the context of the UE; and receiving, from the first base station, a response message as a response to the request message, the response message including the context of the UE. ### Claim 10 (depends on 9) The method of claim 9, further comprising: transmitting, to the core network, a path switch request message after a complete of the resumption of the RRC connection; and receiving, from the core network, a response message as a response to the path switch request message. ### Claim 11 (depends on 10) The method of claim 10, wherein the response message as a response to the path switch request message includes inactive state assistance information. ### Claim 12 (depends on 11) The method of claim 11, wherein the inactive state assistance information includes at least one of discontinuous reception (DRX) information or mobility area information. ### Claim 13 (depends on 8) The method of claim 8, wherein the first paging message further includes paging priority information. ### Claim 14 A first base station in a communication system, the first base station comprising: a transceiver; and a controller coupled with the transceiver and configured to: receive, from a core network, inactive state assistance information, determine whether a user equipment (UE) is moved to an inactive state based on the inactive state assistance information, transmit, to the UE, a control message for entering into the inactive state for the UE, the control message including an identifier associated with a context of the UE in the inactive state, in case that the UE is moved to the inactive state based on the inactive state assistance information, and transmit, to a second base station, a paging message including the identifier associated with the context of the UE in the inactive state, wherein the inactive state is a state in which a connection between the UE and the core network is maintained, a connection between the UE and a base station is suspended, and the context of the UE is maintained. ### Claim 15 (depends on 14) The first base station of claim 14, wherein the control message further includes paging area information and paging cycle information. ### Claim 16 (depends on 15) The first base station of claim 15, wherein the paging area information includes at least one of a list of tracking areas or a list of cell identities. ### Claim 17 (depends on 14) The first base station of claim 14, wherein the inactive state assistance information includes at least one of discontinuous reception (DRX) information or mobility area information. ### Claim 18 (depends on 14) The first base station of claim 14, wherein the paging message further includes paging priority information. ### Claim 19 (depends on 14) The first base station of claim 14, wherein the controller is further configured to receive, from the UE, capability information including information indicating the UE supports the inactive state. ### Claim 20 (depends on 14) The first base station of claim 14, wherein the controller is further configured to: receive, from the second base station, a request message for a retrieval of the context of the UE, and transmit, to the second base station, a response message as a response to the request message, the response message including the context of the UE. ### Claim 21 A second base station in a communication system, the second base station comprising: a transceiver; and a controller coupled with the transceiver and configured to: receive, from a first base station, a first paging message including an identifier associated with a context of a user equipment (UE) in an inactive state, transmit, to the UE, a second paging message for the UE based on the first paging message, the second paging message including the identifier associated with the context of the UE in the inactive state, and receive, from the UE, a control message for requesting resumption of a radio resource control (RRC) connection, wherein the inactive state is a state in which a connection between the UE and a core network is maintained, a connection between the UE and a base station is suspended, and the context of the UE is maintained. ### Claim 22 (depends on 21) The second base station of claim 21, wherein the controller is further configured to: transmit, to the first base station, a request message for a retrieval of the context of the UE, and receive, from the first base station, a response message as a response to the request message, the response message including the context of the UE. ### Claim 23 (depends on 22) The second base station of claim 22, wherein the controller is further configured to: transmit, to the core network, a path switch request message after a complete of the resumption of the RRC connection; and receive, from the core network, a response message as a response to the path switch request message. ### Claim 24 (depends on 23) The second base station of claim 23, wherein the response message as a response to the path switch request message includes inactive state assistance information. ### Claim 25 (depends on 24) The second base station of claim 24, wherein the inactive state assistance information includes at least one of discontinuous reception (DRX) information or mobility area information. ### Claim 26 (depends on 21) The second base station of claim 21, wherein the first paging message further includes paging priority information.