Method, system and device for transmitting data
First Claim
1. A data transmission method comprising:
- a Mobility Management Entity (MME) receiving a data transmission message, sent from a user equipment, carrying a Packet Data Network (PDN) Connectivity Request message and a data packet to be transmitted;
the MME establishing a PDN connection only at a core network side; and
the MME sending the data packet to be transmitted, to a Serving Gateway (SGW) over the PDN connection to instruct the SGW to send the data packet to be transmitted, to a Packet Data Gateway (PGW) over the PDN connection;
wherein after the MME receives the data transmission message and before the MME establishes the PDN connection at the core network side, the method further comprises;
the MME determining from subscription information of the user equipment whether a small data transfer feature is applicable to the data packet to be transmitted; and
wherein the MME establishing the PDN connection at the core network side comprises;
the MME establishing the PDN connection only at the core network side after the MME determines that the small data transfer feature is applicable to the data packet to be transmitted.
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Accused Products
Abstract
The invention embodiments disclose a method, system and device for transmitting data, relate to wireless communication technical art, and resolve the question that terminal how to transmit data when packet data network (PDN) connection is not be established. In the invention, when the terminal needs to transmit data and the PDN connection for transmitting the data is not be established, the terminal sends data transmitting message which carries a PDN connection request message and package to be transmitted to mobility management entity (MME). The PDN connection is only established by core network side when the MME receives the data transmitting message, and the package to be transmitted is sent out by the PDN connection. Therefore, the invention enables UE to transmit data when PDN connection is not be established.
9 Citations
15 Claims
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1. A data transmission method comprising:
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a Mobility Management Entity (MME) receiving a data transmission message, sent from a user equipment, carrying a Packet Data Network (PDN) Connectivity Request message and a data packet to be transmitted; the MME establishing a PDN connection only at a core network side; and the MME sending the data packet to be transmitted, to a Serving Gateway (SGW) over the PDN connection to instruct the SGW to send the data packet to be transmitted, to a Packet Data Gateway (PGW) over the PDN connection; wherein after the MME receives the data transmission message and before the MME establishes the PDN connection at the core network side, the method further comprises; the MME determining from subscription information of the user equipment whether a small data transfer feature is applicable to the data packet to be transmitted; and wherein the MME establishing the PDN connection at the core network side comprises; the MME establishing the PDN connection only at the core network side after the MME determines that the small data transfer feature is applicable to the data packet to be transmitted. - View Dependent Claims (2, 3, 4, 5)
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6. A Mobility Management Entity (MME) comprising:
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a receiver configured to receive a data transmission message, sent from a user equipment, carrying a Packet Data Network (PDN) Connectivity Request message and a data packet to be transmitted; a processor configured to establish a PDN connection only at a core network side; and a transmitter configured to send the data packet to be transmitted, to a Serving Gateway (SGW) over the PDN connection to instruct the SGW to send the data packet to be transmitted to a Packet Data Gateway (PGW) over the PDN connection; wherein the processor is further configured to determine from subscription information of the user equipment whether a small data transfer feature is applicable to the data packet to be transmitted after the data transmission message is received and before the PDN connection at the core network side is established, and wherein the processor is further configured to establish the PDN connection at the core network side after it is determined that the small data transfer feature is applicable to the data packet to be transmitted. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A wireless communication system comprising:
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a user equipment configured to determine, when there is data to be transmitted, whether there is a Packet Data Network (PDN) connection established for transmitting the data; and
to send to a Mobility Management Entity (MME) a data transmission message carrying a PDN Connectivity Request message and a data packet to be transmitted after determining that there is no PDN connection established for transmitting the data; andthe MME configured to receive the data transmission message and establish a PDN connection only at the core network side, and to send the data packet to be transmitted, to a Serving Gateway (SGW) over the established PDN connection to instruct the SGW to send the data packet to be transmitted, to a Packet Data Gateway (PGW) over the PDN connection; wherein after the MME receives the data transmission message and before the MME establishes the PDN connection at the core network side, the MME is configured to determine from subscription information of the user equipment whether a small data transfer feature is applicable to the data packet to be transmitted, and wherein the MME is further configured to establish the PDN connection only at the core network side after the MME determines that the small data transfer feature is applicable to the data packet to be transmitted.
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Specification