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18、MAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-5004 Revision History Date Publication Description March 2014 TIA-5004 Initial version of this document. TIA-5004 (This page intentionally left blank) TIA-
19、5004 Table of Contents 1 Foreword . ii 2 1 Introduction 1 3 1.1 Overview 1 4 1.1.1 Purpose . 1 5 1.1.2 Scope 1 6 1.1.3 Document Convention . 1 7 1.2 References 2 8 1.2.1 Normative References 2 9 1.2.2 Informative References 2 10 1.3 Terminology . 2 11 1.3.1 Acronyms . 2 12 1.3.2 Definitions . 3 13 2
20、 Wireless Priority Service . 5 14 3 1x RAN WPS Enhancements . 7 15 4 IWS WPS Enhancements . 39 16 17 18 i TIA-5004 Foreword 1 This foreword is not part of this document. 2 This document describes the modifications to TIA-878-D and TIA-2001.4-D-3 interface protocols and 3 procedures to support Wirele
21、ss Priority Services. 4 This document was produced by TIA TR-45.4. This document was developed in accordance with the 5 procedural guidelines of 3GPP2 and its Organizational Partners, and represents the consensus position of 6 these groups. 7 8 ii TIA-5004 1 Introduction 1 2 1.1 Overview 3 This docu
22、ment includes a description of the modifications to TIA-878-D 1 and TIA-2001.4-E-3 2 4 interface protocols and procedures to support Wireless Priority Services (WPS). Conformance to this 5 standard may be claimed on a feature by feature and/or interface by interface basis. If conformance on a 6 give
23、n interface is claimed for a feature, it shall be supported as defined in this standard. 7 This document specifies enhancements to 1 and 2 to provide priority treatment in the Access Network. 8 The existing WPS specification in TIA-917-A 3 provides National Security / Emergency Preparedness 9 (NS/EP
24、) priority service in the cdma2000 network to authorized call originating users (based on their 10 identification through their subscription profile) and to call termination from an authorized NS/EP user. 11 This document specifies procedures for the Access Network node(s) between the MS and MSC (i.
25、e., the 12 node(s) that handle the A1 interface) with the objective to recognize potential NS/EP calls and handle 13 their signaling with priority. This should be prior to the calls being recognized and authorized as NS/EP 14 calls by the MSC for further call processing and transport through the net
26、work. 15 These access network procedures provide additional protection from congestion for a potential NS/EP call 16 at any of the nodes between the MS and MSC, before the call is shed or not delivered to the MSC. The 17 specified procedures also adjust the utilization of the Random Access channel b
27、y priority treatment of the 18 A1 interface signaling (i.e., Page messages) and dynamic adjustment of user access through the Access 19 Control Overload Class. 20 In addition, the priority treatment transition during an eCSFB procedure from E-UTRAN to cdma2000 is 21 clarified. 22 1.1.1 Purpose 23 Th
28、e purpose of this document is to provide a set of deltas to 1 and 2 interface protocols and procedures 24 to support WPS within the Radio Access Network (RAN). 25 1.1.2 Scope 26 This document provides an interoperability specification for a RAN that supports WPS. This document 27 contains additions
29、to message procedures and formats defined in 1 and 2 necessary to obtain this inter-28 operability. 29 This document defines mechanisms to provide priority treatment to NS/EP calls so as to increase the 30 probability of an NS/EP call origination or termination to proceed at times of congestion in t
30、he signaling 31 access network. The scope of these mechanisms is to provide priority treatment for: 32 a) NS/EP call setup messaging over the Reverse Access (RACH) and Paging (PCH) Channels, and 33 b) NS/EP call setup message processing during real-time processing overload. 34 1.1.3 Document Convent
31、ion 35 “Shall” and “shall not” identify requirements to be followed strictly to conform to this document and from 36 which no deviation is permitted. “Should” and “should not” indicate that one of several possibilities is 37 recommended as particularly suitable, without mentioning or excluding other
32、s; that a certain course of 38 action is preferred but not necessarily required; or (in the negative form) that a certain possibility or 39 course of action is discouraged but not prohibited. “May” and “need not” indicate a course of action 40 permissible within the limits of the standard. “Can” and
33、 “cannot” are used for statements of possibility 41 and capability, whether material, physical, or causal. 42 1 TIA-5004 1.2 References 1 References are either normative or informative. A normative reference is used to include another 2 document as a mandatory part of a 3GPP2 specification. Document
34、s that provide additional non-essential 3 information are included in the informative references section. 4 1.2.1 Normative References 5 The following standards contain provisions which, through reference in this text, constitute provisions of 6 this standard. At the time of publication, the edition
35、s indicated were valid. All standards are subject to 7 revision, and parties to agreements based upon this standard are encouraged to investigate the possibility 8 of applying the most recent editions of the standards indicated below. ANSI and TIA maintain registers of 9 currently valid national sta
36、ndards published by them. 10 1 TIA-878-D, Interoperability Specification (IOS) for High Rate Packet Data (HRPD) Radio 11 Access Network Interfaces with Session Control in the Access Network, March 2013. 12 2 TIA-2001.4-E-3, Interoperability Specification (IOS) for cdma2000 Access Network Interfaces
37、13 Part 4 (A1, A1p, A2, and A5 Interfaces), November 2013. 14 3 TIA-917-A, Wireless Priority Service Enhancements for CDMA Systems, March 2014. 15 4 TIA-2000.1-F, Introduction to cdma2000 Standards for Spread Spectrum Systems, December 16 2012. 17 5 TIA-2000.2-F, Physical Layer Standard for cdma2000
38、 Spread Spectrum Systems, December 18 2012. 19 6 TIA-2000.3-F, Medium Access Control (MAC) Standard for cdma2000 Spread Spectrum 20 Systems, December 2012. 21 7 TIA-2000.4-F, Signaling Link Access Control (LAC) Standard for cdma2000 Spread Spectrum 22 Systems, December 2012. 23 8 TIA-2000.5-F, Upper
39、 Layer (Layer 3) Signaling Standard for cdma2000 Spread Spectrum 24 Systems, December 2012. 25 9 TIA-1184-A, E-UTRAN-cdma2000 1x Connectivity and Interworking Air Interface 26 Specification, July 2013. 27 1.2.2 Informative References 28 None. 29 1.3 Terminology 30 31 1.3.1 Acronyms 32 BS Base Statio
40、n CSFB Circuit Switched Fallback e1xCSFB Enhanced 1x Circuit Switched Fallback E-UTRAN Enhanced Universal Terrestrial Radio Access Network GCSNA Generic Circuit Services Notification Application GETS Government Emergency Telecommunication Service HRPD High Rate Packet Data IE Information Element IOS
41、 Interoperability Specification 2 TIA-5004 IP Internet Protocol IWS Interworking Solution MMPS Multimedia Priority Service MS Mobile Station MSC Mobile Switching Center NS/EP National Security / Emergency Preparedness RAN Radio Access Network WPS Wireless Priority Service 1 1.3.2 Definitions 2 1x Th
42、e term “1x” refers to the cdma2000 1x radio interface defined in 4 3 through 8. 4 A21 end point An end point for 1x tunneling in support of HRPD CSNA or GCSNA or 5 both. 6 A21 end point for another technology 7 An entity of another technology (e.g., an MME in E-UTRAN) that supports 8 A21 signaling a
43、s defined in this document (e.g., the S102 interface). 9 Circuit-Switched MSC The MSC provides signaling capability via an SS7-based connection to the 10 AN on the A1 interface. The A2 interface may be used to connect with the 11 IWS function. 12 GCSNA message GCSNA message may be either TLACEncapsu
44、lated1xL3PDU with GCSNA 13 header or GCSNA information. Refer to 9. 14 IWS Function Interworking Solution (IWS) Function enables cdma2000 1x system 15 interworking with other systems to support HRPD Interworking solution, E-16 UTRAN to cdma2000 1x Circuit Switched Fallback solution or E-UTRAN to 17
45、cdma2000 1x Single Radio Voice Call Continuity solution. The IWS 18 Function is logically collocated at the 1x BS, or as a standalone entity. When 19 providing support for HRPD interworking, the IWS can be logically 20 collocated at the HRPD AN. In this standard the term IWS is used without 21 regar
46、d to the location of the IWS. When it is necessary to make a distinction 22 with regard to the location of the IWS, that is explicitly stated. IWS provides 23 the following functions: 24 Message Translation: This function translates between IOS A1/A1p 25 messages received from/sent to a Mobile Switc
47、hing Center (MSC) and 26 1x air interface signaling messages sent/received over tunneled air 27 interfaces (e.g., HRPD or E-UTRAN). 28 1x Parameters Storage: This function stores 1x radio parameters required 29 for CSNA or GCSNA support. 30 1x PN Offset and BTS Cell ID Mapping: This function enables
48、 to map a 31 pair of 1x PN pilot information and HRPD sector information into BTS 32 Cell ID. 33 RAND Generation: This optional function provides the RAND used for 34 1x authentication. This function may be in the HRPD AN. When several 35 nodes in the RAN have this function, the RAND value provided
49、by the 36 IWS is used. 37 3 TIA-5004 Mobile Switching Center The MSC switches MS/AT-originated or MS/AT-terminated traffic. An MSC 1 connects to one or more ANs . It may connect to other public networks 2 (PSTN, ISDN, etc.), other MSCs in the same network, or MSCs in different 3 networks. (It has been referred to as Mobile Telephone Switching Office, 4 MTSO.) It provides the interface for user traffic between the wireless 5 network and other public switched networks, or other MSCs. 6 In this document, for signaling, the term MSC refers t
