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

Abstract

Disclosed are a signalling retransmission method and device based on Stream Control Transmission Protocol (SCTP), including: numbering an independent signalling data packet and a plurality of verification data packets, and sending the numbered independent signalling data packet and plurality of verification data packets to a receiving end in turn according to the numbering; receiving SACK messages sent by the receiving end, and judging whether or not the number of received SACK messages has reached a preset value; when the number of received SACK messages reaches the preset value, determining that the signalling data packets corresponding to the same lost signalling data packet number in the plurality of SACK messages are lost; and sending the signalling data packets that are determined as being lost to the receiving end again. According to the method, a plurality of verification data packets is sent after an independent signalling data packet is sent; in this manner, whether or not the independent signalling data packet is lost can be judged by way of the plurality of verification data packets, and the SCTP lost signalling data packets can be effectively and promptly retransmitted after it is determined that signalling data packets are lost.

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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