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1. 发明授权

US11445401B2 Session management in wireless communication system 有权
公开(公告)号：US11445401B2
公开(公告)日：2022-09-13
申请号：US16795421
申请日：2020-02-19
申请人： MEDIATEK INC.
发明人： Chien-Chun Huang-Fu , Yu-Chieh Tien , Chi-Hsien Chen , Shang-Ru Mo
IPC分类号： H04W28/12 , H04W28/02 , H04W80/10 , H04W76/25
摘要： A method can include receiving a non-access stratum (NAS) message for establishing or modifying a protocol data unit (PDU) session at a user equipment (UE) from a core network, determining whether there is a quality of service (QoS) flow description resulting from the establishment or modification of the PDU session that is associated with a guaranteed bit rate (GBR) QoS flow of the PDU session, and invalid, and when it is determined that there is the invalid QoS flow description associated with the GBR QoS flow of the PDU session, performing an error handling operation.

2. 发明申请

US20200322834A1 INTERWORKING BETWEEN EVOLVED PACKET SYSTEM (EPS) SESSION MANAGEMENT (ESM) AND 5G SESSION MANAGEMENT (5GSM) 审中-公开
公开(公告)号：US20200322834A1
公开(公告)日：2020-10-08
申请号：US16828090
申请日：2020-03-24
申请人： MEDIATEK INC.
发明人： Chien-Chun HUANG-FU , Shang-Ru Mo
IPC分类号： H04W28/02 , H04W76/10
摘要： A method can include receiving a “create new evolved packet system (EPS) bearer” operation code in a mapped EPS bearer contexts information element (TB) in a first protocol data unit (PDU) session modification command message for creating a mapped EPS bearer context at a user equipment (UE) in a wireless communication system, and when there is neither a quality of service (QoS) flow descriptions IE in the first PDU session modification command message indicating a QoS flow description corresponding to an EPS bearer identity (EBI) in the mapped EPS bearer context, nor an existing QoS flow description at the UE corresponding to the EBI included in the mapped EPS bearer context, sending a PDU session modification request message including a mapped EPS bearer contexts IE to delete the mapped EPS bearer context.

3. 发明授权

US09888421B2 Method of enhanced bearer continuity for 3GPP system change 有权
公开(公告)号：US09888421B2
公开(公告)日：2018-02-06
申请号：US14854369
申请日：2015-09-15
申请人： MEDIATEK INC.
发明人： Shang-Ru Mo , Chien-Chun Huang-Fu , Yuan-Chieh Lin , Yung Hsiang Hsieh , Yung-Fu Chen
IPC分类号： H04W36/00 , H04W36/24 , H04W36/14 , H04W76/04 , H04W48/20
CPC分类号： H04W36/24 , H04W36/14 , H04W48/20 , H04W76/22
摘要： Methods and apparatus are provided for enhanced bearer continuity for the 3GPP network. In one novel aspect, the UE detects missing parameters for the inter-RAT bearer change in an idle state. The UE performs bearer preservation procedures to maintain the bearer continuity. In one embodiment, predefined/preconfigured parameter settings are used. In one embodiment, a mapping rule is used to map the missing parameter to a predefined value based on one or more known parameters. In another embodiment, the missing parameters are obtained from the network. In another embodiment, signaling procedures used to obtain the missing parameters. The signaling procedures include a service request, a UE-initiated bearer modification procedure. In one embodiment, the cell reselection is suspended such that the signaling procedure is performed to obtain the missing parameters before the cell reselection. In another embodiment, a RAU procedure is used upon detecting the missing of parameters.

4. 发明授权

US10972956B2 Enhanced handling on QoS flow description 有权
公开(公告)号：US10972956B2
公开(公告)日：2021-04-06
申请号：US16530152
申请日：2019-08-02
申请人： MEDIATEK INC.
发明人： Chien-Chun Huang-Fu , Chi-Hsien Chen , Shang-Ru Mo
IPC分类号： H04W40/02 , H04W48/12 , H04L12/813 , H04L29/06 , H04L12/725 , H04W28/02 , H04W28/12 , H04W36/00 , H04W36/14 , H04W68/02 , H04W76/27 , H04L29/08 , H04W28/04 , H04W8/18 , H04W36/08 , H04W48/18 , H04W84/04
摘要： A method of QoS rule management with enhanced handling on QoS flow description is proposed. UE checks QoS configuration received from the network for QoS operation errors. When UE receives a QoS rule associated with a specific QFI but has no QoS flow description for the QFI, UE further determines whether the QoS rule is of a GBR QoS flow. If so, UE detects a QoS operation error. If the QoS rule is the default QoS rule, then UE releases the PDU session. If the QoS rule is not the default QoS rule, then UE either rejects a PDU session modification command that carries the QoS rule or deletes the QoS rule carried by a PDU session establishment accept with a 5GSM cause value indicating the QoS operation error.

5. 发明申请

US20200162958A1 Insufficient Resources in the UE during PDU Session Establishment Procedure 审中-公开
公开(公告)号：US20200162958A1
公开(公告)日：2020-05-21
申请号：US16686868
申请日：2019-11-18
申请人： MEDIATEK INC.
发明人： Chien-Chun Huang-Fu , Chi-Hsien Chen , Shang-Ru Mo
IPC分类号： H04W28/02 , H04W76/10 , H04W76/30 , H04W80/10 , H04W56/00 , H04W88/02
摘要： A method of handling insufficient resources in a user equipment (UE) during a PDU session establishment procedure is proposed. During a PDU session establishment procedure, UE sends a PDU SESSION ESTABLISHMENT REQUEST message to the network. UE then receives a PDU SESSION ESTABLISHMENT ACCEPT message from the network, the ACCEPT message carries various PDU session parameters including authorized QoS rules and QoS flows. If UE decides to reject the addition of the new authorized QoS flow description or the new authorized QoS rule due to lack of resources, UE may initiate a PDU session release procedure with 5G session management (5GSM) cause IE #26 “insufficient resources”. In an alternative embodiment, UE may synchronize with the network by sending a PDU session modification request message to delete certain QoS rules/flow descriptions with 5GSM cause IE #26 “insufficient resources”.

6. 发明申请

US20200154379A1 Synchronization Of QoS Flows And Rules In Mobile Communications 审中-公开
公开(公告)号：US20200154379A1
公开(公告)日：2020-05-14
申请号：US16680331
申请日：2019-11-11
申请人： MediaTek Inc.
发明人： Chien-Chun Huang-Fu , Shang-Ru Mo , Chi-Hsien Chen
IPC分类号： H04W56/00 , H04W28/02 , H04W80/10 , H04W8/08 , H04W60/00 , H04W48/18
摘要： Various examples and schemes pertaining to synchronization of quality of service (QoS) flows and rules in mobile communications are described. An apparatus establishes one or more protocol data unit (PDU) sessions with a wireless network. The apparatus then transmits a message to the wireless network to result in synchronization of status of at least one or more aspects related to QoS rules or QoS flows with respect to the one or more PDU sessions.

7. 发明授权

US10257760B2 Method of inter-RAT bearer change for 3GPP system 有权
公开(公告)号：US10257760B2
公开(公告)日：2019-04-09
申请号：US14854413
申请日：2015-09-15
申请人： MEDIATEK INC.
发明人： Chien-Chun Huang-Fu , Shang-Ru Mo , Yuan-Chieh Lin , Yung Hsiang Hsieh , Yung-Fu Chen
IPC分类号： H04W36/24 , H04W76/22 , H04W36/14 , H04W48/20
摘要： Methods and apparatus are provided for inter-RAT bearer change for the 3GPP network. In one novel aspect, a bearer termination procedure is performed upon detecting one or more triggering events for the inter-RAT bearer modification. In one embodiment, the UE established the 4G EPS bearer. The UE successfully performs a bearer change from 4G to 3G. Subsequently, the UE detects missing mandatory parameters during inter-RAT bearer change from 3G to 2G in an idle state. The UE performs bearer termination by releasing the PDP context. In one embodiment, the PDP context is locally released. In other embodiments, the UE explicitly releases bearer using the PDP context deactivation procedure. The locally released procedure can be triggered by the UE, or by the network, or by both the UE and the network. The explicitly PDP context release procedure can be triggered by the UE, or by the network, or by both the UE and the network.

8. 发明申请

US20160080992A1 Method of Inter-RAT Bearer Change for 3GPP System 审中-公开
标题翻译： 3GPP系统的RAT间承载变化方法
公开(公告)号：US20160080992A1
公开(公告)日：2016-03-17
申请号：US14854413
申请日：2015-09-15
申请人： MEDIATEK INC.
发明人： Chien-Chun Huang-Fu , Shang-Ru Mo , Yuan-Chieh Lin , Yung Hsiang Hsieh , Yung-Fu Chen
IPC分类号： H04W36/00 , H04W36/24 , H04W36/14
CPC分类号： H04W36/24 , H04W36/14 , H04W48/20 , H04W76/22
摘要： Methods and apparatus are provided for inter-RAT bearer change for the 3GPP network. In one novel aspect, a bearer termination procedure is performed upon detecting one or more triggering events for the inter-RAT bearer modification. In one embodiment, the UE established the 4G EPS bearer. The UE successfully performs a bearer change from 4G to 3G. Subsequently, the UE detects missing mandatory parameters during inter-RAT bearer change from 3G to 2G in an idle state. The UE performs bearer termination by releasing the PDP context. In one embodiment, the PDP context is locally released. In other embodiments, the UE explicitly releases bearer using the PDP context deactivation procedure. The locally released procedure can be triggered by the UE, or by the network, or by both the UE and the network. The explicitly PDP context release procedure can be triggered by the UE, or by the network, or by both the UE and the network.
摘要翻译：提供了用于3GPP网络的RAT间承载变化的方法和装置。在一个新颖的方面，在检测用于RAT间承载修改的一个或多个触发事件时，执行承载终止过程。在一个实施例中，UE建立了4G EPS承载。 UE成功地执行从4G到3G的承载变化。随后，UE在空闲状态期间从3G到2G的RAT间承载变化期间检测到缺失的强制参数。 UE通过释放PDP上下文来执行承载终止。在一个实施例中，PDP上下文被本地释放。在其他实施例中，UE使用PDP上下文去激活过程明确地释放承载。本地发布的过程可以由UE触发，也可以由网络触发，或由UE和网络触发。明确的PDP上下文释放过程可以由UE或网络或UE和网络两者触发。

9. 发明授权

US11246054B2 Interworking between evolved packet system (EPS) session management (ESM) and 5G session management (5GSM) 有权
公开(公告)号：US11246054B2
公开(公告)日：2022-02-08
申请号：US16828090
申请日：2020-03-24
申请人： MEDIATEK INC.
发明人： Chien-Chun Huang-Fu , Shang-Ru Mo
IPC分类号： H04W28/02 , H04W76/10
摘要： A method can include receiving a “create new evolved packet system (EPS) bearer” operation code in a mapped EPS bearer contexts information element (IE) in a first protocol data unit (PDU) session modification command message for creating a mapped EPS bearer context at a user equipment (UE) in a wireless communication system, and when there is neither a quality of service (QoS) flow descriptions IE in the first PDU session modification command message indicating a QoS flow description corresponding to an EPS bearer identity (EBI) in the mapped EPS bearer context, nor an existing QoS flow description at the UE corresponding to the EBI included in the mapped EPS bearer context, sending a PDU session modification request message including a mapped EPS bearer contexts IE to delete the mapped EPS bearer context.

10. 发明授权

US11159976B2 Handling of mapped EPS bearer context for invalid QoS flow description 有权
公开(公告)号：US11159976B2
公开(公告)日：2021-10-26
申请号：US16687166
申请日：2019-11-18
申请人： MEDIATEK INC.
发明人： Chien-Chun Huang-Fu , Shang-Ru Mo , Chi-Hsien Chen
IPC分类号： H04W36/00 , H04W76/18 , H04W28/02 , H04W76/10 , H04W88/02 , H04W80/10 , H04W56/00 , H04W76/30
摘要： A method of handling mapped Evolved Packet System (EPS) bearer context for invalid QoS flow description is proposed. During a PDU session establishment procedure or a PDU session modification procedure, a UE may receive a mapped EPS bearer context IE for creating a new mapped EPS bearer of a PDU session. If there is no corresponding QoS flow description associated to the new mapped EPS bearer, e.g., if there is no corresponding authorized QoS flow description IE in the PDU session establishment accept message or in the PDU session modification command message, then the UE should send another PDU session modification request message to the network to delete the new mapped EPS bearer context.

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