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Public Safety LTE ('''PS-LTE''') is a technology for next-generation public safety communication system based on [[LTE]]. |
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{{Infobox organization |
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|name= Small Cell Forum |
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|image= Small Cell Forum logo.jpg |size= 220px |
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|caption= Membership logo from 2012 |
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|formation= <!-- {{Start year and years ago |2007}} --> 2007 |
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|predecessor= Femto Forum |
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}} |
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It is being stadardized in [[3GPP]] since Release 12. Mission Critical Push-to-Talk (MCPTT) is specified in Release 13. Two additional applications (Mission Critial Video (MCVideo) and Mission Critical Data (MCData)) are currently in progress under Release 14, and is expected to be completed in 2016. |
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The '''Small Cell Forum''' is a non-profit industry [[consortium]] dedicated to the proliferation of [[Femtocell]] and [[Small cell]] deployment. Their mission statement is "''to drive the wide-scale adoption of small cells and accelerate the delivery of integrated HetNets''." |
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<ref> |
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{{cite web |
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|title=Mission Statement |
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|publisher=Small Cell Forum |
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|url=http://www.smallcellforum.org/about/what-we-do/our-mission/}}</ref> |
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Members include mobile telecommunications vendor and [[Mobile network operator]] companies. The vendor companies include types such as silicon vendors, mobile system vendors, [[Femtocell]]/[[Small cell]] vendors, and other specialized product vendors. As of 2015, there are 150 member companies consisting 65 mobile operators world-wide and represents 3 billion mobile subscribers. |
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<ref> |
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{{cite web |
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|title=Member companies |
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|publisher=Small Cell Forum |
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|url=http://www.smallcellforum.org/about/what-we-do/our-mission/}}</ref> |
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The Forum focuses on activities to promote small cell technologies and is a Market Representation Partner of [[3GPP]]. |
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The Forum was originally started as "Femto Forum" but later changed the name to the current name to adjust itself to the changing trend of the mobile technology. |
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==Background and Motivation== |
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== History == |
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Traditionally, public safety communication systems have been bespoke implementation specifically designed and implemented for public safety usage. Typically they are deployed in various types of government agencies. [These includes Terrestrial Trunked Radio] (TETRA) and [Project 25|P25]. |
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[[File:Femto Forum logo.jpg|thumb|right|Femto Forum logo: 2007 - 2011]] |
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The Forum was originally launched in 2007 as "Femto Forum" to focus on the promotion of [[Femtocell]] technology. The founding member companies are mainly start-up companies developing [[Femtocell]] technology. At that time, the term "femtocell" was synonymous to products and services intended for residential indoor coverage only. However, since 2009 onward, the deployment scenarios and use cases of femtocell expanded to enterprise, public space, and outdoor scenarios such as metro and rural deployment, in addition to residential scenario. At the same time, the mobile industry started using the term [[Small cell]] to generically refer to the type of products that are intended for these deployment scenarios. As a result, the connotation of the term [[Femtocell]] shifted toward the type of product and services intended for residential market only. |
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==Trend in the commercial deployment== |
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The Forum saw the needs to make it clear to the mobile industry that its work covers all types of products and deployment scenarios including enterprise, public space, outdoor also, not only the residential deployment. The board of the Forum approved in 2011 to change the name to Small Cell Forum. The new Forum name was officially announced in [[Mobile World Congress]] in 2012. |
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<ref> |
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{{cite web |
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|title=Femto Forum becomes Small Cell Forum |
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|publisher=Small Cell Forum |
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|url=http://www.smallcellforum.org/press-releases/femto-forum-becomes-small-cell-forum-femtocell-technology-extends-beyond-home/ |
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|accessdate=15 February 2012|language=en}}</ref> |
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==Applications== |
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It should be noted that there were similar precedences such as the original DSL Forum change to [[Broadband Forum]] as its scope expands more than DSL technology and other industry Fora merges into it. |
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Three types of applications (i.e. usages) of PS-LTE is defined in 3GPP: |
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* Mission Critical Push-to-Talk (MCPTT) |
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* Mission Critical Video (MCVideo) |
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* Mission Critical Data (MCData) |
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== |
==Technical challenges== |
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[[LTE]] technology, or [[Mobile telephony|cellular mobile communication]] in general, has been developed for consumer usage. There are inherently different technical usages in public safety usage. |
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Forum's mission is to drive the wide-scale adoption of small cells and accelerate the delivery of integrated HetNets. |
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This implies two main areas of focus: 1) Standardization, regulation & interoperability, 2) Marketing, promotion & business case. |
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In order to support public safety communication based on LTE technology, the following areas are addressed. |
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==Chairman== |
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2007 - 2011: Prof. Simon Saunders |
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==Standardization in 3GPP== |
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2012 - 2014: Gordon Mansfield ([[AT&T]]) |
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Standardization work on PS-LTE started in Rel.12. Work has been decomposed into several different areas. |
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===Group Communication=== |
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2015 - present: Alan Law ([[Vodafone]]) |
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====Improvement of MBMS operation==== |
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SC-PTM |
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===Direct Communication (D2D)=== |
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==Working Groups== |
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ProSe |
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The Forum consists of 7 Working Groups (WGs). |
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====Discovery of proximity UE==== |
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====Direct communication between UEs==== |
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====Relay operation==== |
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=== |
===Standalone Operation=== |
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IOPS |
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The Marketing Group considers how best to position small cells within the industry and to the wider public, build usage cases, agree common terminology and communicate how the small cell ecosystem is helping to remove deployment barriers. |
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==Related 3GPP Specifications== |
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===Radio (RPH) WG=== |
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The Radio and Physical Layer (RPH) Working Group looks at radio layer aspects of small cells in all of their forms, including developing standardized RF interfaces and clarifying the various capability classes of small cell. |
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===ProSe (Proximity Service) related specifications=== |
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===Network WG=== |
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The Network Group is promoting standardized requirements, architectures and interfaces for integrating small cells into the network core. |
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===Regularoty WG=== |
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The Regulatory Group identifies regulatory benefits and potential public policy issues in various strategic markets around the world and works with regulators to ensure a benign environment for rapid and efficient small cell deployment. |
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===Services WG=== |
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The Services Group investigates how small cells can introduce innovative new services that take advantage of the presence capabilities of small cells. The group aims to develop industry consensus with around common approaches, such as standard APIs. |
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===Interoperability (IOT) WG=== |
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The Interoperability Group provides clarity on how, where and when interoperability testing will take place to ensure that deployments function effectively and in accordance with the standards. |
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===Deployment (DEP) WG=== |
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The Deployment Group (DEP) aims to determine, develop and disseminate deployment best practice, especially in the context of urban and rural use cases. It works closely with the Network and Regulatory Groups. |
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==Impacts on Standardization== |
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The Forum is not a [[Standards organization|Standard Developing Organization]] (SDO), meaning that it does not create and publish standard by itself. Instead, it promotes Small Cell technologies by working with and influence other relevant SDOs such as [[3GPP]] as a Market Representation Partner. |
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The Forum has served to shape the member companies' views into a consensus prior to the standardization. In that respect, it served the role of "pre-standard discussion" venue to reach agreement and bring joint contribution to the relevant standard. |
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===3GPP Standard=== |
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In early days of the work in the Forum resulted in the Iu-h standard in 3GPP. It is the logical interface and protocols for 3G [[UMTS]] femtocell called [[Home Node B]], or HNB in short. The resulting 3GPP specification includes stage-2 and stage-3 specifications such as [[HNBAP]] (Home Node B Application Part) and RUA (RANAP User Adaption). |
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===Broadband Forum Standard=== |
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The discussion in the Forum resulted in the agreement in the [[Femtocell]]'s O&M management framework to be based on [[Broadband Forum]]'s [[TR-069]] CWMP (CPE WAN Management Protocol). The subsequent work in the Forum resulted in the publication of [[TR-196]] (Femto Access Point Service Data Model) through working with 3GPP. The official specification was created and published in 3GPP and Broadband Forum, but most of the actual work was done by the members in the Small Cell Forum. |
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===Reference Specification=== |
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The Forum defined several [[API]]s specific to the needs of [[Femtocell]] and [[Small cell]]. They are not standard "specification" per se. However, they allows common implementation framework among multiple vendors. They are supported and implemented in the industry such as silicon vendor companies. |
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====FAPI==== |
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Femto API (FAPI) defines the API between [[Baseband processor]] and the firmware that controls the baseband. |
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====Service API==== |
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Service API defines the the API at the application level to embody multiple services. It is based on [[Representational state transfer|REST]] (RESTful API). |
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==Collaboration with other Industry Fora and Consortium== |
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The Forum has partnership with industry consortium and fora such as [[Wi-Fi Alliance]] (WFA) and [[Wireless Broadband Alliance]] (WBA) on topics such as Wi-Fi / Small cell hotspot. |
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<ref> |
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{{cite web |
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|title=WBA, Small Cell Forum collaborate on Wi-Fi/small cell hotspots |
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|publisher=Firecewireless |
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|url=http://www.fiercewireless.com/tech/story/wba-small-cell-forum-collaborate-wi-fismall-cell-hotspots/2012-11-02}}</ref> |
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==Release Program== |
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The Forum started release program around 2012. It has published 5 Releases, each of them focuses on specific deployment scenario and target market segment. Each release consists of a set of whitepapers on wide range of topics from business, regulatory, to specific technical aspects. |
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<ref> |
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{{cite web |
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|title=Small Cell Forum release program |
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|publisher=Small Cell Forum |
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|url=http://www.smallcellforum.org/about/what-we-do/release-program/ |
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|language=en}}</ref> |
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The released documents can be downloaded from the archive. |
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<ref> |
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{{cite web |
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|title=Small Cell Forum released documents |
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|publisher=Small Cell Forum |
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|url=http://scf.io/en/index.php |
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|language=en}}</ref> |
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===Published Releases=== |
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{| class="wikitable" |
{| class="wikitable" |
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!width="100"|Spec # |
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!width="300"|Spec name |
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!width="100"|WG |
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!width="100"|Release |
!width="100"|Release |
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!width=" |
!width="300"|Description |
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!width="150"|Theme |
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!Number of Documents |
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|- |
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|align="center"|TR [http://www.3gpp.org/DynaReport/22803.htm 22.803] |
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|'''Release 1''' |
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|align="center"| |
|align="center"|Feasibility study for Proximity Services (ProSe) |
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|align="center"| |
|align="center"|SA1 |
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|align="center"| |
|align="center"|Rel.12 |
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|align="left"|Study of stage 1 requirement |
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|- |
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|align="center"|TS [http://www.3gpp.org/DynaReport/23303.htm 23.303] |
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|'''Release 2''' |
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|align="center"| |
|align="center"|Proximity-based services (ProSe); Stage 2 |
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|align="center"| |
|align="center"|SA2 |
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|align="center"| |
|align="center"|Rel.12 |
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|align="left"|stage 2 architecture |
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|- |
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|align="center"|TR [http://www.3gpp.org/DynaReport/23703.htm 23.703] |
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|'''Release 3 / 4''' |
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|align="center"|Study on architecture enhancements to support Proximity-based Services (ProSe) |
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|align="center"|2014 |
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|align="center"| |
|align="center"|SA2 |
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|align="center"| |
|align="center"|Rel.12 |
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|align="left"|study of stage 2 architecture |
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|} |
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===GCSE (Group Communication System Enablers) related specifications=== |
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{| class="wikitable" |
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!width="100"|Spec # |
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!width="300"|Spec name |
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!width="100"|WG |
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!width="100"|Release |
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!width="300"|Description |
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|- |
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|align="center"|TS [http://www.3gpp.org/DynaReport/22468.htm 22.468] |
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|'''Release 5''' |
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|align="center"| |
|align="center"|Group Communication System Enablers for LTE (GCSE_LTE) |
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|align="center"|SA1 |
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|align="center"|[http://scf.io/en/release_theme/Rural__Remote.php Rural & Remote] |
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|align="center"| |
|align="center"|Rel.12 |
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|align="left"|Stage 1 requirement |
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|- |
|- |
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|align="center"|TS [http://www.3gpp.org/DynaReport/23468.htm 23.468] |
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|'''Release 5.1''' |
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|align="center"| |
|align="center"|Group Communication System Enablers for LTE (GCSE_LTE); Stage 2 |
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|align="center"|SA2 |
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|align="center"|[http://scf.io/en/release_theme/Virtualization.php Virtualization] |
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|align="center"| |
|align="center"|Rel.12 |
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|align="left"|Stage 2 architecture |
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|- |
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|align="center"|TR [http://www.3gpp.org/DynaReport/23768.htm 23.768] |
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|align="center"|Study on architecture enhancements to support Group Communication System Enablers for LTE (GCSE_LTE) |
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|align="center"|SA2 |
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|align="center"|Rel.12 |
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|align="left"|Study of stage 2 architecture |
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|} |
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It should be noted that some documents are listed under more than one theme. |
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===Future Releases=== |
===Future Releases=== |
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Future releases include the following topics: |
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* License Exempt ([[LTE in unlicensed spectrum|LTE-U/LAA]]) |
* License Exempt ([[LTE in unlicensed spectrum|LTE-U/LAA]]) |
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* [[Heterogeneous network|NetNet]] & [[Self-organizing network|SON]] |
* [[Heterogeneous network|NetNet]] & [[Self-organizing network|SON]] |
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== See also == |
== See also == |
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* [[ |
* [[5G]] |
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* [[Small cell]] |
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* [[Home Node B]] |
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* [[Home eNode B]] |
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== References == |
== References == |
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== External links == |
== External links == |
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* [http://www. |
* [http://www.3gpp.org/ 3GPP] |
Revision as of 15:03, 30 January 2016
Public Safety LTE (PS-LTE) is a technology for next-generation public safety communication system based on LTE.
It is being stadardized in 3GPP since Release 12. Mission Critical Push-to-Talk (MCPTT) is specified in Release 13. Two additional applications (Mission Critial Video (MCVideo) and Mission Critical Data (MCData)) are currently in progress under Release 14, and is expected to be completed in 2016.
Background and Motivation
Traditionally, public safety communication systems have been bespoke implementation specifically designed and implemented for public safety usage. Typically they are deployed in various types of government agencies. [These includes Terrestrial Trunked Radio] (TETRA) and [Project 25|P25].
Trend in the commercial deployment
Applications
Three types of applications (i.e. usages) of PS-LTE is defined in 3GPP:
- Mission Critical Push-to-Talk (MCPTT)
- Mission Critical Video (MCVideo)
- Mission Critical Data (MCData)
Technical challenges
LTE technology, or cellular mobile communication in general, has been developed for consumer usage. There are inherently different technical usages in public safety usage.
In order to support public safety communication based on LTE technology, the following areas are addressed.
Standardization in 3GPP
Standardization work on PS-LTE started in Rel.12. Work has been decomposed into several different areas.
Group Communication
Improvement of MBMS operation
SC-PTM
Direct Communication (D2D)
ProSe
Discovery of proximity UE
Direct communication between UEs
Relay operation
Standalone Operation
IOPS
Related 3GPP Specifications
ProSe (Proximity Service) related specifications
Spec # | Spec name | WG | Release | Description |
---|---|---|---|---|
TR 22.803 | Feasibility study for Proximity Services (ProSe) | SA1 | Rel.12 | Study of stage 1 requirement |
TS 23.303 | Proximity-based services (ProSe); Stage 2 | SA2 | Rel.12 | stage 2 architecture |
TR 23.703 | Study on architecture enhancements to support Proximity-based Services (ProSe) | SA2 | Rel.12 | study of stage 2 architecture |
GCSE (Group Communication System Enablers) related specifications
Spec # | Spec name | WG | Release | Description |
---|---|---|---|---|
TS 22.468 | Group Communication System Enablers for LTE (GCSE_LTE) | SA1 | Rel.12 | Stage 1 requirement |
TS 23.468 | Group Communication System Enablers for LTE (GCSE_LTE); Stage 2 | SA2 | Rel.12 | Stage 2 architecture |
TR 23.768 | Study on architecture enhancements to support Group Communication System Enablers for LTE (GCSE_LTE) | SA2 | Rel.12 | Study of stage 2 architecture |
Future Releases
See also