Device and Method of Handling a PDU Session in Inter-system Mobility between a LTE System and a NR/5G System
First Claim
1. A communication device for handling mobility between a new radio (NR)/fifth generation (5G) network and a long-term evolution (LTE) network, comprising:
- a storage device; and
a processing circuit, coupled to the storage device, wherein the storage device stores, and the processing circuit is configured to execute instructions of;
connecting to the NR/5G network;
communicating a Protocol Data Unit (PDU) Session identity/identifier (ID) identifying a PDU Session with the NR/5G network;
communicating data of the PDU Session with the NR/5G network;
disconnecting the NR/5G network, connecting to the LTE network and performing a tracking area update (TAU) procedure with the LTE network;
disconnecting the LTE network and connecting to the NR/5G network, after performing the TAU procedure; and
communicating the PDU Session ID identifying the PDU Session with the NR/5G network, when disconnecting the LTE network and connecting to the NR/5G network.
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Accused Products
Abstract
A communication device for handling mobility between a new radio (NR)/fifth generation (5G) network and a long-term evolution (LTE) network comprises a storage device for storing instructions and a processing circuit coupled to the storage device. The processing circuit is configured to execute the instructions stored in the storage device. The instructions comprise connecting to the NR/5G network; communicating a Protocol Data Unit (PDU) Session identity/identifier (ID) identifying a PDU Session with the NR/5G network; communicating data of the PDU Session with the NR/5G network; disconnecting the NR/5G network, connect to the LTE network and performing a tracking area update (TAU) procedure with the LTE network; disconnecting the LTE network and connect to the NR/5G network, after performing the TAU procedure; and communicating the PDU Session ID identifying the PDU Session with the NR/5G network, when disconnecting the LTE network and connecting to the NR/5G network.
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Citations
20 Claims
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1. A communication device for handling mobility between a new radio (NR)/fifth generation (5G) network and a long-term evolution (LTE) network, comprising:
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a storage device; and a processing circuit, coupled to the storage device, wherein the storage device stores, and the processing circuit is configured to execute instructions of; connecting to the NR/5G network; communicating a Protocol Data Unit (PDU) Session identity/identifier (ID) identifying a PDU Session with the NR/5G network; communicating data of the PDU Session with the NR/5G network; disconnecting the NR/5G network, connecting to the LTE network and performing a tracking area update (TAU) procedure with the LTE network; disconnecting the LTE network and connecting to the NR/5G network, after performing the TAU procedure; and communicating the PDU Session ID identifying the PDU Session with the NR/5G network, when disconnecting the LTE network and connecting to the NR/5G network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for handling mobility between a new radio (NR)/fifth generation (5G) network and a long-term evolution (LTE) network, comprising:
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the NR/5G network connecting to a communication device; the NR/5G network communicating a Protocol Data Unit (PDU) Session identity/identifier (ID) identifying a PDU Session with the communication device; the NR/5G network communicating data of the PDU Session with the communication device; the LTE network connecting to the communication device and performing a tracking area update (TAU) procedure with the communication device; the NR/5G network connecting to the communication device, after the LTE network performing the TAU procedure; and the NR/5G network communicating the PDU Session ID identifying the PDU Session with the communication device, when connecting to the communication device after the LTE network performing the TAU procedure. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A network for handling mobility between a new radio (NR)/fifth generation (5G) network and a long-term evolution (LTE) network, comprising:
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the NR/5G network, comprising; a first storage device; and a first processing circuit, coupled to the first storage device, wherein the first storage device stores, and the first processing circuit is configured to execute instructions of; connecting to a communication device; communicating a Protocol Data Unit (PDU) Session identity/identifier (ID) identifying a PDU Session with the communication device; communicating data of the PDU Session with the communication device; connecting to the communication device, after the LTE network performing a tracking area update (TAU) procedure; and communicating the PDU Session ID identifying the PDU Session with the communication device, when connecting to the communication device after the LTE network performing the TAU procedure; and the LTE network, comprising; a second storage device; and a second processing circuit, coupled to the second storage device, wherein the second storage device stores, and the second processing circuit is configured to execute an instruction of; connecting to the communication device and performing the TAU procedure with the communication device. - View Dependent Claims (17, 18, 19, 20)
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Specification