Flow control method and system for wireless network

A technology of flow control and flow control strategy, which is applied in the field of communication, can solve problems such as inconsistency between usage flow and billing system, overcharging, damage to user interests, etc., and achieve the effect of improving differentiated service performance

Active Publication Date: 2011-12-28
CHINA TELECOM CORP LTD
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Problems solved by technology

[0004] On the other hand, a wireless network in a congested state needs to continuously discard data packets entering the network to maintain the balance of network inbound and outbound traffic, and this part of the discarded traffic has been

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  • Flow control method and system for wireless network
  • Flow control method and system for wireless network
  • Flow control method and system for wireless network

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[0031] The invention will be described in more detail hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated. In the drawings, the same reference numerals denote the same or similar components or elements.

[0032] figure 1 It is a schematic diagram of an application scenario 100 according to an embodiment of the present invention. The application scenario 100 includes: an access terminal 101 , a base station 102 , a base station controller 104 , a packet data gateway 106 and a policy server 108 .

[0033] The access terminal 101, that is, the user accessing the wireless network, can be a mobile phone, a netbook, or a PC with a network card that supports 3G mobile communication standards such as WCDMA, CDMA2000, and TD-SCDMA, and can access the packet core network through dialing, etc. , to realize the presentation of multimedia services such as audio, video and text.

[0034] The base station 102 can maintai...

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Abstract

The invention, which relates to the communication technology, provides a flow control method and a system thereof for a wireless network. The flow control method comprises the following steps that: a base station monitors a length of a shared data buffer queue that is maintained by the base station, wherein the shared data buffer queue comprises all downstream user flows that are from a packet core network and belong to the base station; according to a monitored congestion state of the shared data buffer queue, the base station reports indication information on the congestion state to a base station controller; the base station controller transmits a congestion state indication through a signaling protocol of a packet data gateway, wherein the signaling protocol is established between the base station controller and the core network; and the packet data gateway sends a flow control request to a strategy server; the strategy server determines flow control strategies for data flows of different users under the base station; and the packet data gateway carried out flow controls on data flows of the different users according to the flow control strategies. According to the invention, on the basis of monitoring on a congestion state of a shared data buffer queue by a base station, a strategy server and a packet data gateway can carry out differential flow controls on data flows of different users.

Description

technical field [0001] The present invention relates to communication technology, in particular to a flow control method and system of a wireless network. Background technique [0002] The third generation (3G) mobile communication technology refers to the cellular mobile communication technology that supports high-speed data transmission and can simultaneously provide multimedia services such as audio, video and text. At present, the International Telecommunication Union (ITU) has determined the wireless interface standards of WCDMA, CDMA2000, and TD-SCDMA. With the large-scale deployment of 3G networks by major operators around the world, and the continuous enrichment and development of mobile Internet services, the number of 3G mobile users is also growing rapidly, and more and more users will enjoy the new benefits brought by 3G networks. business experience. Therefore, how to efficiently use limited wireless resources to meet individualized and differentiated user req...

Claims

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Application Information

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IPC IPC(8): H04W28/14
Inventor 何晓明
Owner CHINA TELECOM CORP LTD
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