Signaling retransmission method and apparatus based on Stream Control Transmission Protocol and system

Abstract

The invention discloses a signaling retransmission method and an apparatus based on Stream Control Transmission Protocol (SCTP). The method comprises the steps of numbering an independent signaling data packet and a plurality of validation data packets, and transmitting the independent signaling data packet and the plurality of validation data packets to a receiving end in order; receiving SACK message transmitted from the receiving end and determining whether the number of the SACK message reaches to a preset value; making sure the loss of signaling data packets corresponding to the lost signaling data packets of a plurality of SACK message in terms of number, when the number of the received SACK message reaches to the preset value; retransmitting the signaling data packets that are determined to be lost to the receiving end. The method transmits a plurality of validation data packets after transmitting the independent signaling data packet, and thereby it can be determined whether the independent signaling data packet is lost or not through the plurality of validation data packets. When it is ensured that the signaling data packet is lost, the lost signaling data packet based onSCTP can be effectively retransmitted in time.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a signaling retransmission method, device and system based on a flow control transmission protocol. Background technique [0002] Femto (femtocell base station) is a network device that provides wireless access services for home / business users based on a fixed IP transmission network. As a supplementary technology of WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) macro cell, it can enable operators to provide better wireless broadband voice services and data services for home users at a lower cost. As a new technology of fixed-mobile convergence, and the market combination point of personal mobile communication and home broadband communication, Femto will be an important means for full-service operators to provide differentiated services. Because the IP network is used for transmission between the Femto and the core network,...

AI Technical Summary

Problems solved by technology

When network congestion occurs and performance drops, network packet loss increases, transmission delay increases, signaling and business data may not arrive on time

During a call establishment process, there are more than 10 interactive signaling between HNB (Home NodeB, home base station) and HNB-GW (Home NodeB GateWay, home base station gateway). Any signaling packet loss during this period will cause a timeout The accumulation of time will increase the delay of call establishment. When the packet loss is serious, the call establishment will fail.

And for other base stations of WCDMA, such as Micro and Pico, because they also use public network transmission, the same problem also exists

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