TD-LTE与异系统互操作的调度研究
摘要
当前,LTE以其高速率、大容量、低时延等特性,被业界普遍认为是下一代无线接入网络的首选技术。但是,由于不同的国家和运营商之间现网的2G/3G网络和技术中存在较大差异,因此在进行LTE的实际部署时需要结合当地运营商的网络状况。
本文主要研究的内容是,以中国移动的网络和技术为例,研究在TD-LTE的实际部署中,TD-LTE与2G(GSM)和3G(TD-SCDMA)的无线接入网络互操作的调度和实现,即Inter-RAT (Inter-Radio Access Technology)技术,为中国移动部署TD-LTE提供可选方案。
本论文的主要工作为：
(一)首先,系统的阐述了LTE与2G和3G的无线接入网络的互操作方式,分析和比较了TD-LTE的数据域业务在RRC的空闲态和连接态等两种状态下的互操作调度和区别,重点设计了在RRC连接态的数据业务调度的三种方案,并详细阐述了三种调度的时序图,还考虑了每种方式的失败情况以实现更可靠的调度。
(二)接着,本论文在数据业务调度方案的基础上,先是分析了话音业务的互操作三种方式,并确定了话音回落的调度方式,然后,将原有的数据业务调度模式移植到话音回落调度中,设计了话音回落的三种调度方案的详细流程,并综合考虑数据和话音业务在TD-LTE基站eNodeB侧的互操作调度方式,编写代码予以实现。
(三)最后,针对TD-LTE与2G/3G的互操作目标需求,本文设计出了互操作的典型场景,并搭建仿真平台,将切换调度时间作为评价方法,比较几种调度方式,确定最优方案。
Nowadays, it has been agreed worldwidely that the Long Term Evolution (LTE) will occupy the entire next market because of its high rate, large capacity, low time delay characteristics. However, due to different countries and operators have different2G/3G networks and technologies at present, so in the actual deployment of LTE, we should take the local operators' actual network into account.
This paper research mean to take the China Mobile's network and technology as an example, research the interoperable scheduling method between TD-LTE and2G (GSM) and3G (TD-SCDMA) wireless access network in the actual deployment of TD-LTE, that is inter-RAT (Radio Access Technology), and supply alternative methods for the deployment of TD-LTE of China Mobile.
This paper's main job is as follows:
Firstly, this paper introduces the interoperability way between TD-LTE and2G and3G wireless access network in general, and detailed analyse the scheduling of TD-LTE data domain business in RRC's idle state and the connection state, especially the three kinds of scheduling design in RRC connection state, elaborates three scheduling sequence diagram, also considering each failure situation in order to achieve more reliable operation.
Secondly, based on the data domain business, this paper analyse the three interoperability scheduling methods of voice business, and confirm the scheduling mode of call session fallback, and then, creatively transfer the scheduling methods of data service into voice service, and design the three scheduling ways in detailed to complete call session fallback. Then, implement the comprehensive scheduling mode of data service and call session in LTE base station.
Finally, in view of the TD-LTE and2G/3G interoperability target demand, this paper designed the typical scene of interoperability, and set up the simulation platform, take the scheduling time as evaluation method, compare several scheduling modes and choose the optimum scheme.
本文主要研究的内容是,以中国移动的网络和技术为例,研究在TD-LTE的实际部署中,TD-LTE与2G(GSM)和3G(TD-SCDMA)的无线接入网络互操作的调度和实现,即Inter-RAT (Inter-Radio Access Technology)技术,为中国移动部署TD-LTE提供可选方案。
本论文的主要工作为：
(一)首先,系统的阐述了LTE与2G和3G的无线接入网络的互操作方式,分析和比较了TD-LTE的数据域业务在RRC的空闲态和连接态等两种状态下的互操作调度和区别,重点设计了在RRC连接态的数据业务调度的三种方案,并详细阐述了三种调度的时序图,还考虑了每种方式的失败情况以实现更可靠的调度。
(二)接着,本论文在数据业务调度方案的基础上,先是分析了话音业务的互操作三种方式,并确定了话音回落的调度方式,然后,将原有的数据业务调度模式移植到话音回落调度中,设计了话音回落的三种调度方案的详细流程,并综合考虑数据和话音业务在TD-LTE基站eNodeB侧的互操作调度方式,编写代码予以实现。
(三)最后,针对TD-LTE与2G/3G的互操作目标需求,本文设计出了互操作的典型场景,并搭建仿真平台,将切换调度时间作为评价方法,比较几种调度方式,确定最优方案。
Nowadays, it has been agreed worldwidely that the Long Term Evolution (LTE) will occupy the entire next market because of its high rate, large capacity, low time delay characteristics. However, due to different countries and operators have different2G/3G networks and technologies at present, so in the actual deployment of LTE, we should take the local operators' actual network into account.
This paper research mean to take the China Mobile's network and technology as an example, research the interoperable scheduling method between TD-LTE and2G (GSM) and3G (TD-SCDMA) wireless access network in the actual deployment of TD-LTE, that is inter-RAT (Radio Access Technology), and supply alternative methods for the deployment of TD-LTE of China Mobile.
This paper's main job is as follows:
Firstly, this paper introduces the interoperability way between TD-LTE and2G and3G wireless access network in general, and detailed analyse the scheduling of TD-LTE data domain business in RRC's idle state and the connection state, especially the three kinds of scheduling design in RRC connection state, elaborates three scheduling sequence diagram, also considering each failure situation in order to achieve more reliable operation.
Secondly, based on the data domain business, this paper analyse the three interoperability scheduling methods of voice business, and confirm the scheduling mode of call session fallback, and then, creatively transfer the scheduling methods of data service into voice service, and design the three scheduling ways in detailed to complete call session fallback. Then, implement the comprehensive scheduling mode of data service and call session in LTE base station.
Finally, in view of the TD-LTE and2G/3G interoperability target demand, this paper designed the typical scene of interoperability, and set up the simulation platform, take the scheduling time as evaluation method, compare several scheduling modes and choose the optimum scheme.
引文
[1]NGMN.Annex A (informative) of Use Cases related to Self Organising Network Overall Description [M].2007.
[2]NGMN. Next Generation Mobile Networks beyond HSPA&EVDO [M].Release 5. 2006.11.
[3]NGMN. Use Cases related to Self Organising Network Overall Description [M]. 2007.04.
[4]IEEE Wireless Communications and Networking Conference [C].2007,1506-1511.
[5]3GPP TSG RAN WG4 Meeting #42 Tdoc R4 070092 [S]. NTT DoCoMo, Throughput.
[6]赵训威.林辉.张明等.3GPP长期演进(LTE)系统架构与技术规范[J].人们邮电出版社.2011年5月： P10.
[7]沈嘉,索士强,全海洋.3GPP长期演进(LTE)技术原理与系统设计[M],人民邮电出版社,2008年11月：P30.
[8]LTE全球加快部署[OL]. http://labs.chinamobile.com/focus/157.
[9]3GPP TS 36.201, Evolved Universal Terrestrial Radio Access (E-UTRA) and Long Term Evolution (LTE) physical layer UMTS [S], p6-p9.
[10]3GPP TS 36.214. Evolved Universal Terrestrial Radio Access (E-UTRA) Physical layer-Measurements [M].2008.
[11]3GPP TS 36.300 v8.2.0, Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN) [S].
[12]3GPP TS 36.300 V10.2.0, Evolved Universal Terrestrial Radio Access and Evolv-ed Universal Terrestrial Radio Access Network (E-UTRAN) [S]; Overall Discri-ption; Stage2。
[13]3GPP TS 36.401 v9.1.0. Evolved Universal Terrestrial Radio Access Network (E-UTRAN). Archi tecture description [S].2011.3.
[14]3GPP TS 36.423.Evolved Univerasl Terrestrial Radio Acess Network (E-UTRAN) X2 Application Protocol (X2AP) [S].V8.3.0.2008.09.23.
[15]ITU-T Rec. M.733 (11/88) Transmission routine maintenance measurements on automatic and semi-automatic telephone circuits [M],2011.8.
[16]ITU-T Rec. M.650 (11/88) Routine line measurements to be made on the line repeaters of audio-frequency sections or circuits [M].2011.8.
[17]ITU-T Rec. M.1012 (11/88) Circuit control station for leased and special circuits [M].2011.8.
[18]R1071027, S SCH sequence design [S], Ericsson.
[19]程静远TD-LTE未来的系统间切换机制与实施策略研究[J]. 《中国通信学会第六届学术年会论文集(上)》2009年.
[20]李小文,李贵勇,陈贤亮等。TD-SCDMA第三代移动通信系统信令及实现[M]。人民邮电出版社,2003：400-401。
[21]3GPP R2-062862, Non-contention based and pre-synchronized access in LTE handover[S], Ericsson.
[22]3GPP R2-062865, Idle Gaps for Handover Measurements in E-UTRAN [S], Ericsson.
[23]Kim Jongnam, Kim Hoon, Han Youngnam. New preamble structures for synch-ronization and cell searching in OFDM systems [A]. Proc. IEEE VTC[C].2005, 1623-1627.
[24]Chen Chih-Liang, Chen Sau-Gee. An Efficient Cell Search Algorithm for Pream-ble-based OFDM Systems [A]. Proc. IEEE Personal, Indoor and Mobile Radio Communications[C].2008,1-5.
[25]Kim Hgyu, Han Youngnam, Chung Hyun. An Efficient Synchronization Signal Structure for OFDM-Based Cellular Systems [J]. IEEE Wireless Communications, 2010,9(1):99-105.
[26]A.Shaw, S.Srivastava. A Novel preamble structure for robust timing synchronization in OFDM system [A]. Proc. IEEE TENCON [C].2007,1-4.
[27]徐勇.七大趋势勾勒美好明天一一宽带无线接入技术发展及展望[J].中国无线电.2002年06期.
[28]R3-100201 Energy Saving for HeNBs Mitsubishi Electric [M].2009.
[29]R3-101619 Energy Saving for HeNBs Mitsubishi Electricn [M].2009.
[30]UTRAN architecture for 3G Home NodeB (HNB) [S],3GPP TS 25.467 V9.3.0 (2010-06).
[31]Architecture aspects of Home Node B (HNB)/Home enhanced Node B (HeNB) [S],3GPP TS 23.830.
[32]Service requirements for Home Node B (HNB) and Home eNode B (HeNB) [S], 3GPP TS 22.220.
[33]IMS aspects of architecture for Home Node B (HNB)[S],3GPP TS 23.232.
[34]Mobility procedures for Home Node B (HNB); Overall description; Stage[S], 3GPP TS 25.367.
[35]3GPP TR 25.813 v7.1.0, Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN) [S].
[36]王财香,张棠棣,李小文.LTE系统切换过程的实现[J],电视技术,2010年3月.
[37]赵伦,朱宇霞.一种LTE系统中的基站内切换实现方案[J].光通信研究.2012年第一期.2012年2月.
[38]杨琳琳3GPP LTE系统的切换机制研究[J].通信技术.第41卷(总第200期).2010年8月：20-21.
[39]M.Tanno, S.Nagata, Y.Kishiyana, K.Higuchi, M.Sawahashi. Physical Channel Structures and Cell Search Method for Scalable Bandwidth for OFDM Radio Access in Evolved UTRA Downlink [A].Proc.
[40]R1 071029, Detection of Hopping/No Hopping of Downlink Reference Signals [S], Ericsson.
[41]张昊,姜怡,李凯等.LTE语音解决方案三足鼎立[OL]. http://www. mscbsc.com/viewnews-59888.html.2011.11.
[42]朱建华.移动通信技术的发展,回顾和展望[J].电信科学.2011年1期.
[43]赵璐等.对现代无线通信技术若干理论问题的研究[J].民营科技.2009年9期.
[44]魏志斌.对通信技术领域热点的分析[J].黑龙江科技信息.2011年23期.
[45]马海明.无线通信技术研究及发展趋势探讨[J].硅谷.2008年14期.
[46]陶乃勇.第三代移动通信系统的QoS和资源管理[J].中国数据通信.2002年7期.
[47]刘建新等.浅析无线通信技术[J].中国电子商务.2010,年11期.
[48]田桂花.浅谈无线通信技术的发展[J].价值工程.2010年29卷22期.
[49]LTE-RRC层[OL]. http://www.docin.com/p-88454593.html.
[50]赵逸UMTS无线承载控制协议的研究与实现[M].北京邮电大学.2005年.
[51]LTE与2G/3G网络融合部署策略探究[OL]. http://www.c 114.net/media/516/ a673140.html.
[52]詹冲LTE-WLAN异构系统互联切换协议研究[J].华中科技大学.2011年
[53]叶全南TD-LTE与2G/3G互操作方案初探[J].广东通信技术.2011年31卷4期.
[54]程运.LTE终端空闲模式协议研究与实现[J].重庆邮电大学.2011.
[55]曾文豪.2G/3G互操作策略的实施[J].电信工程技术与标准化.2010年6期.
[56]魏克军.LTE语音业务解决方案--CS Fallback技术分析与探讨[J].电信技术. 2011年08期.
[57]移动宽带的生命力来自IP化[OL]. http://www.huawei.com/cn/about-huawei /publications/communicate/hw-080674-27412-17905-hw_080411-hw_080637.ht m.
[58]3GPP TS 36.331 v10.2.0. Evolved Universal Terrestrial Radio Access (E-UTRA) Radio Resource Control(RRC) [S], Protocol specification.
[59]3GPP R2-062831, LTE neighbourhood list and measurement organization [S], Siemens.
[60]3GPP R2-062785, Access Alternatives for Handover[S], Alcatel.
[61]Tseng Pin-Kai, Wang Sen-Hung, Li Chih-Peng. A Novel Low Complexity Cell Search Scheme for LTE Systems [A]. Proc.IEEE VTC[C].2010,1-5.
[62]3GPP R2-062829, Improved reporting of HO measurements[S], Siemens.
[2]NGMN. Next Generation Mobile Networks beyond HSPA&EVDO [M].Release 5. 2006.11.
[3]NGMN. Use Cases related to Self Organising Network Overall Description [M]. 2007.04.
[4]IEEE Wireless Communications and Networking Conference [C].2007,1506-1511.
[5]3GPP TSG RAN WG4 Meeting #42 Tdoc R4 070092 [S]. NTT DoCoMo, Throughput.
[6]赵训威.林辉.张明等.3GPP长期演进(LTE)系统架构与技术规范[J].人们邮电出版社.2011年5月： P10.
[7]沈嘉,索士强,全海洋.3GPP长期演进(LTE)技术原理与系统设计[M],人民邮电出版社,2008年11月：P30.
[8]LTE全球加快部署[OL]. http://labs.chinamobile.com/focus/157.
[9]3GPP TS 36.201, Evolved Universal Terrestrial Radio Access (E-UTRA) and Long Term Evolution (LTE) physical layer UMTS [S], p6-p9.
[10]3GPP TS 36.214. Evolved Universal Terrestrial Radio Access (E-UTRA) Physical layer-Measurements [M].2008.
[11]3GPP TS 36.300 v8.2.0, Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN) [S].
[12]3GPP TS 36.300 V10.2.0, Evolved Universal Terrestrial Radio Access and Evolv-ed Universal Terrestrial Radio Access Network (E-UTRAN) [S]; Overall Discri-ption; Stage2。
[13]3GPP TS 36.401 v9.1.0. Evolved Universal Terrestrial Radio Access Network (E-UTRAN). Archi tecture description [S].2011.3.
[14]3GPP TS 36.423.Evolved Univerasl Terrestrial Radio Acess Network (E-UTRAN) X2 Application Protocol (X2AP) [S].V8.3.0.2008.09.23.
[15]ITU-T Rec. M.733 (11/88) Transmission routine maintenance measurements on automatic and semi-automatic telephone circuits [M],2011.8.
[16]ITU-T Rec. M.650 (11/88) Routine line measurements to be made on the line repeaters of audio-frequency sections or circuits [M].2011.8.
[17]ITU-T Rec. M.1012 (11/88) Circuit control station for leased and special circuits [M].2011.8.
[18]R1071027, S SCH sequence design [S], Ericsson.
[19]程静远TD-LTE未来的系统间切换机制与实施策略研究[J]. 《中国通信学会第六届学术年会论文集(上)》2009年.
[20]李小文,李贵勇,陈贤亮等。TD-SCDMA第三代移动通信系统信令及实现[M]。人民邮电出版社,2003：400-401。
[21]3GPP R2-062862, Non-contention based and pre-synchronized access in LTE handover[S], Ericsson.
[22]3GPP R2-062865, Idle Gaps for Handover Measurements in E-UTRAN [S], Ericsson.
[23]Kim Jongnam, Kim Hoon, Han Youngnam. New preamble structures for synch-ronization and cell searching in OFDM systems [A]. Proc. IEEE VTC[C].2005, 1623-1627.
[24]Chen Chih-Liang, Chen Sau-Gee. An Efficient Cell Search Algorithm for Pream-ble-based OFDM Systems [A]. Proc. IEEE Personal, Indoor and Mobile Radio Communications[C].2008,1-5.
[25]Kim Hgyu, Han Youngnam, Chung Hyun. An Efficient Synchronization Signal Structure for OFDM-Based Cellular Systems [J]. IEEE Wireless Communications, 2010,9(1):99-105.
[26]A.Shaw, S.Srivastava. A Novel preamble structure for robust timing synchronization in OFDM system [A]. Proc. IEEE TENCON [C].2007,1-4.
[27]徐勇.七大趋势勾勒美好明天一一宽带无线接入技术发展及展望[J].中国无线电.2002年06期.
[28]R3-100201 Energy Saving for HeNBs Mitsubishi Electric [M].2009.
[29]R3-101619 Energy Saving for HeNBs Mitsubishi Electricn [M].2009.
[30]UTRAN architecture for 3G Home NodeB (HNB) [S],3GPP TS 25.467 V9.3.0 (2010-06).
[31]Architecture aspects of Home Node B (HNB)/Home enhanced Node B (HeNB) [S],3GPP TS 23.830.
[32]Service requirements for Home Node B (HNB) and Home eNode B (HeNB) [S], 3GPP TS 22.220.
[33]IMS aspects of architecture for Home Node B (HNB)[S],3GPP TS 23.232.
[34]Mobility procedures for Home Node B (HNB); Overall description; Stage[S], 3GPP TS 25.367.
[35]3GPP TR 25.813 v7.1.0, Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN) [S].
[36]王财香,张棠棣,李小文.LTE系统切换过程的实现[J],电视技术,2010年3月.
[37]赵伦,朱宇霞.一种LTE系统中的基站内切换实现方案[J].光通信研究.2012年第一期.2012年2月.
[38]杨琳琳3GPP LTE系统的切换机制研究[J].通信技术.第41卷(总第200期).2010年8月：20-21.
[39]M.Tanno, S.Nagata, Y.Kishiyana, K.Higuchi, M.Sawahashi. Physical Channel Structures and Cell Search Method for Scalable Bandwidth for OFDM Radio Access in Evolved UTRA Downlink [A].Proc.
[40]R1 071029, Detection of Hopping/No Hopping of Downlink Reference Signals [S], Ericsson.
[41]张昊,姜怡,李凯等.LTE语音解决方案三足鼎立[OL]. http://www. mscbsc.com/viewnews-59888.html.2011.11.
[42]朱建华.移动通信技术的发展,回顾和展望[J].电信科学.2011年1期.
[43]赵璐等.对现代无线通信技术若干理论问题的研究[J].民营科技.2009年9期.
[44]魏志斌.对通信技术领域热点的分析[J].黑龙江科技信息.2011年23期.
[45]马海明.无线通信技术研究及发展趋势探讨[J].硅谷.2008年14期.
[46]陶乃勇.第三代移动通信系统的QoS和资源管理[J].中国数据通信.2002年7期.
[47]刘建新等.浅析无线通信技术[J].中国电子商务.2010,年11期.
[48]田桂花.浅谈无线通信技术的发展[J].价值工程.2010年29卷22期.
[49]LTE-RRC层[OL]. http://www.docin.com/p-88454593.html.
[50]赵逸UMTS无线承载控制协议的研究与实现[M].北京邮电大学.2005年.
[51]LTE与2G/3G网络融合部署策略探究[OL]. http://www.c 114.net/media/516/ a673140.html.
[52]詹冲LTE-WLAN异构系统互联切换协议研究[J].华中科技大学.2011年
[53]叶全南TD-LTE与2G/3G互操作方案初探[J].广东通信技术.2011年31卷4期.
[54]程运.LTE终端空闲模式协议研究与实现[J].重庆邮电大学.2011.
[55]曾文豪.2G/3G互操作策略的实施[J].电信工程技术与标准化.2010年6期.
[56]魏克军.LTE语音业务解决方案--CS Fallback技术分析与探讨[J].电信技术. 2011年08期.
[57]移动宽带的生命力来自IP化[OL]. http://www.huawei.com/cn/about-huawei /publications/communicate/hw-080674-27412-17905-hw_080411-hw_080637.ht m.
[58]3GPP TS 36.331 v10.2.0. Evolved Universal Terrestrial Radio Access (E-UTRA) Radio Resource Control(RRC) [S], Protocol specification.
[59]3GPP R2-062831, LTE neighbourhood list and measurement organization [S], Siemens.
[60]3GPP R2-062785, Access Alternatives for Handover[S], Alcatel.
[61]Tseng Pin-Kai, Wang Sen-Hung, Li Chih-Peng. A Novel Low Complexity Cell Search Scheme for LTE Systems [A]. Proc.IEEE VTC[C].2010,1-5.
[62]3GPP R2-062829, Improved reporting of HO measurements[S], Siemens.