Browse > Article
http://dx.doi.org/10.7840/kics.2013.38B.5.355

Error Handling and Data Synchronization in Policy and Charging Control Architecture in WiMAX  

Seol, Soonuk (한국기술교육대학교 전기전자통신공학부)
Cho, Sungsoo (KT 종합기술원)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.38B, no.5, 2013 , pp. 355-367 More about this Journal
Abstract
In the Policy and Charging Control(PCC) architecture of the 3GPP and WiMAX forum, the Policy and Charging Rule Function(PCRF) controls and configures the policies of quality of services(QoS) and accounting to a Policy and Charging Rule Enforcement Function(PCEF). In this paper, we categorize the errors into three types that include a disconnection with peer entity, a delayed or no response and a response with failure result, and propose a scheme to automatically synchronize the data between the PCRF and the PCEF for each type of error. Also, we conduct a quantitative analysis to see how much it can help to maintain the cell capacity of the mobile VoIP service in a WiBro network, which is implemented in Korea according to the standards of WiMAX. We can see that our proposed scheme improves the performances of PCC by preventing the waste of radio resources, the overload of systems, the memory leakage of servers, the system shutdown, and so on. We have validated the scheme by implementation, and reflected it in WiMAX standard documents.
Keywords
Error Handling; Synchronization; WiMAX; mVoIP; PCC;
Citations & Related Records
연도 인용수 순위
  • Reference
1 ETSI TISPAN, "Resource and Admission Control Sub-system (RACS); Functional Architecture," ETSI ES 282 003, June 2006.
2 3GPP Release 5, "End-to-end Quality of Service (QoS) signalling flows," 3GPP TS 29.208, Nov. 2001.
3 3GPP Release 6, "End-to-end Quality of Service (QoS) signalling flows," 3GPP TS 29.208, June 2004.
4 3GPP Release 7, "Policy and charging control signalling flows and Quality of Service (QoS) parameter mapping," 3GPP TS 29.213, Sep. 2006.
5 3GPP Release 8, "Policy and charging control signalling flows and Quality of Service (QoS) parameter mapping," 3GPP TS 29.213, June 2008.
6 WiMAX Forum, "WiMAX Forum Network Architecture (Stage 2: Architecture Tenets, Reference Models and Reference Points) [Part 2]," WMF-T32-003-R010v04, Mar. 28, 2007.
7 L. Nuaymi, I. Sato, A. Bouabdallah, "Improving Radio Resource Usage with Suitable Policy and Charging Control in LTE," in Proc. IEEE Int. Conf. Next Generation Mobile Applicat., Services and Technologies (NGMAST), pp. 158-163, Paris, France, Sep. 2012.
8 S. S. Cho, S. U. Seol, H. S. Kim, and Y. C. Jun, "Analysis and measurement on the cell capacity for the mobile VoIP service over the WiBro network," in Proc. KICS Symp., vol. 2008, no. 11, pp. 746-749, Seoul, Korea, Nov. 2008.
9 S. U. Seol, S. S. Cho and H. S. Kim, "Implementation of the standard WiMAX QoS framework and the verification of quality and capacity of mobile VoIP service," 5th Excellent Proc. TTA, pp. 53-75, Dec. 2009.
10 J.-J. P. Balbas, S. Rommer, and J. Stenfelt, "Policy and charging control in the evolved packet system," IEEE Commun. Mag., vol. 47, no. 2, pp. 68-74, 2009.
11 IEEE Standard, "IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed Broadband Wireless Access Systems," IEEE 802.16e/D11, Sep. 2005.
12 ITU-T, "Coding of speech at 8 kbit/s using conjugate-structure algebraic- code-excited linear prediction (CS-ACELP)," ITU-T G.729, June 2005.
13 TTA Standard, "Specifications for 2.3GHz band Portable Internet Service - Physical & Medium Access Control Layer," TTAS.KO-06.0082, June 2005.