# US 12,114,219 B2 · Method for moving between communications systems and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,114,219 B2 - Document ID: US12114219B2 - Status: Granted - Kind: B2 - Application number: 17/328,825 - Filed: 2021-05-24 - Published: 2021-11-18 - Granted: 2024-10-08 - Earliest claimed: 2017-05-08 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Hui Jin; Fenghui Dou; Haorui Yang; Yue He; Guowei Ouyang - Web page: https://patentgrep.com/patent/US12114219B2 ## CPC - H04W 76/10: Connection setup - H04W 28/0252: {per individual bearer or channel (dynamic wireless traffic scheduling H04W72/12)} - H04W 28/0268: {using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] (negotiating SLA or negotiating QoS H04W28/24)} - H04W 36/0005: {Control or signalling for completing the hand-off} - H04W 36/0022: {for transferring data sessions between adjacent core network technologies} - H04W 36/00695: {using split of the control plane or user plane} - H04W 36/14: Reselecting a network or an air interface - H04W 36/1443: {between licensed networks} - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - 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 moving between communications systems and an apparatus, where the method includes: receiving, by a user equipment (UE), a first message, where the first message is used to set up or modify a first evolved packet system (EPS) bearer for the UE in the first communications system, and the first message includes first quality of service (QoS) flow information that is of the second communications system and corresponds to the first EPS bearer; storing, by the UE, the first QoS flow information; moving, by the UE, from the first communications system to the second communications system; and determining, by the UE based on a first condition, QoS flow information used by the UE in the second communications system, where the first condition includes the first QoS flow information. ## Claims ### Claim 1 An apparatus comprising: one or more processors; and a memory coupled to the one or more processors and configured to store instructions that, when executed by the one or more processors, cause the apparatus to: receive a first message indicating an establishment of a first evolved packet system (EPS) bearer or a modification of the first EPS bearer in a first communications system, wherein the first message comprises a quality of service (QOS) rule for a second communications system and a session aggregation maximum bit rate (AMBR) for the second communications system, wherein the QoS rule and the session AMBR correspond to the first EPS bearer, and wherein the first EPS bearer is a default bearer; store the QoS rule and the session AMBR; move from the first communications system to the second communications system; and determine, based on the session AMBR, a session AMBR used in the second communications system, and communicate with the second communications system by using the QOS rule. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the instructions, when executed by the one or more processors, cause the apparatus to store the QoS rule and the session AMBR by storing a correspondence between an EPS bearer context of the first EPS bearer, and the QoS rule and the session AMBR. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the instructions, when executed by the one or more processors, further cause the apparatus to send first information to a first core network entity in a process of establishing a packet data network (PDN) connection in the first communications system, and wherein the first information indicates that the PDN connection can be moved from the first communications system to the second communications system. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the QoS rule and the session AMBR are comprised in a protocol configuration option (PCO) field of the first message. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the QoS rule comprises at least one of a QoS rule identifier, a QoS flow identifier, a packet filter, or a precedence. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the first communications system is a fourth generation communications system, and wherein the second communications system is a fifth generation communications system. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the instructions, when executed by the one or more processors, cause the apparatus to move from the first communications system to the second communications system by receiving a handover command from a base station in the first communications system, and wherein the handover command comprises a QoS flow identifier and a session identifier. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein the instructions, when executed by the one or more processors, cause the apparatus to receive the first message by receiving the first message from a session management function entity +control plane PDN gateway. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein the first message further comprises at least one of a service and session continuity mode or a PDU session identifier. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the one or more processors are further configured to cause the apparatus to: establish the first EPS bearer or the modification of the first EPS bearer in the first communication system; and receive, in response to establishing the first EPS bearer or the modification of the first EPS bearer in the first communication system, the first message. ### Claim 11 A computer program product comprising instructions stored on a non-transitory computer-readable medium that, when executed by one or more processors, cause an apparatus to: receive a first message indicating an establishment of a first evolved packet system (EPS) bearer or a modification of the first EPS bearer in a first communications system, wherein the first message comprises a quality of service (QOS) rule for a second communications system and a session aggregation maximum bit rate (AMBR) for the second communications system, wherein the QOS rule and the session AMBR correspond to the first EPS bearer, and wherein the first EPS bearer is a default bearer; store the QoS rule and the session AMBR; move from the first communications system to the second communications system; and determine, based on the session AMBR, a session AMBR used in the second communications system, and communicate with the second communications system by using the QoS rule. ### Claim 12 (depends on 11) The computer program product of claim 11, wherein the instructions, when executed by the one or more processors, cause the apparatus to store the QoS rule and the session AMBR by storing a correspondence between an EPS bearer context of the first EPS bearer, and the QoS rule and the session AMBR. ### Claim 13 A method, comprising: receiving a first message indicating an establishment of a first evolved packet system (EPS) bearer or a modification of the first EPS bearer in a first communications system, wherein the first message comprises a quality of service (QOS) rule for a second communications system and a session aggregation maximum bit rate (AMBR) for the second communications system, wherein the QoS rule and the session AMBR correspond to the first EPS bearer, and wherein the first EPS bearer is a default bearer; storing the QoS rule and the session AMBR; moving from the first communications system to the second communications system; and determining, based on the session AMBR, a session AMBR used in the second communications system, and communicating with the second communications system by using the QoS rule. ### Claim 14 (depends on 13) The method of claim 13, wherein storing the QoS rule and the session AMBR comprises storing a correspondence between an EPS bearer context of the first EPS bearer, and the QoS rule and the session AMBR. ### Claim 15 (depends on 13) The method of claim 13, wherein before receiving the first message, the method further comprises sending first information to a first core network entity in a process of establishing a packet data network (PDN) connection in the first communications system, and wherein the first information indicates that the PDN connection can be moved from the first communications system to the second communications system. ### Claim 16 (depends on 13) The method of claim 13, wherein the QoS rule and the session AMBR are comprised in a protocol configuration option (PCO) field of the first message. ### Claim 17 (depends on 13) The method of claim 13, wherein the QoS rule comprises at least one of a QoS rule identifier, a QOS flow identifier, a packet filter, or a precedence. ### Claim 18 (depends on 13) The method of claim 13, wherein the first communications system is a fourth generation communications system, and wherein the second communications system is a fifth generation communications system. ### Claim 19 (depends on 13) The method of claim 13, wherein moving from the first communications system to the second communications system comprises receiving a handover command from a base station in the first communications system, and wherein the handover command comprises a QoS flow identifier and a session identifier. ### Claim 20 (depends on 13) The method of claim 13, wherein receiving the first message comprises receiving the first message from a session management function entity+control plane PDN gateway. ### Claim 21 (depends on 13) The method of claim 13, wherein the first message further comprises at least one of a service and session continuity mode or a PDU session identifier.