Data transmission method and system
A data transmission method and data packet technology, which are applied in the field of data transmission data transmission methods and systems, and can solve problems such as waste of network resources
Active Publication Date: 2016-08-03
HUAWEI TECH CO LTD
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Problems solved by technology
In the WCDMA system, the service sending source such as the MTCserver will also continue to send unreachable data to the user equipment because it does not know that the data is discarded because the user equipment is in a disconnected state, and the data packet needs to go through the GGSN and then to the SGSN are discarded, resulting in a large waste of network resources
Method used
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Embodiment Construction
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
[0022] Such as image 3 As shown, for some user equipment or services with delay tolerance features, Embodiment 2 of the present invention provides a data transmission method, including:
[0023] Step 101a, when the user equipment is in an idle state, the serving gateway discards the data packet sent to the user equipment according to the delay tolerance characteristics of the user equipment or the bearer.
[0024] Specifically, after the user equipment changes from the connected state to the idle state...
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A method and system for transmitting data, comprising: when a user equipment is in an idle state, on the basis of a delay tolerance specification of a bearer where a data packet to be transmitted to the user equipment is located or of a delay tolerance specification of the user equipment, a service gateway discarding the data packet to be transmitted to the user equipment; then the service gateway instructing a packet data gateway that the user equipment is in an unreachable idle state; and upon receiving the instruction, the packet data gateway discarding subsequently received data packets to be transmitted to the unreachable user equipment. When the data packet to be transmitted to the unreachable user equipment is discarded by the service gateway of the embodiment on the basis of the delay tolerance specification of the user equipment or the bearer, and the packet data gateway is instructed that the user equipment is in the unreachable state, the packet data gateway is allowed to discard directly the subsequently received data packets, thus reducing invalid transmission of data between core network devices such as the service gateway and the packet data gateway, thereby reducing network load and at the same time reducing waste of network resources.
Description
technical field [0001] The present invention relates to the technical field of communication, and in particular to a data transmission method and system. Background technique [0002] In the existing network communication, there are some service sending sources, such as Machine Type Communications (MTC, Machine Type Communications), which are usually network communication between one or more network elements without human participation, such as In traffic control and management, remote meter reading, remote monitoring, mobile payment, location tracking, medical monitoring and other application fields. [0003] This type of service sending source usually has the characteristics of delay tolerance, that is to say, after the service sending source sends out business data, it does not care whether the business data can reach the other party in real time, and can accept a long time delay, such as several Hours, or even tens of hours of delay. [0004] MTC and other service tran...
Claims
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IPC IPC(8): H04W28/06H04W76/02
CPCH04W28/06
Inventor 郭雅莉张万强胡华东
Owner HUAWEI TECH CO LTD