DOCUMENT #:
GSC15-GRSC-07
FOR:
Presentation
SOURCE:
CCSA
AGENDA ITEM:
4.3
CONTACT(S):
yang.guang@zte.com.cn
CCSA Standardization Activities on
Cognitive Radio System
ZTE Corporation – CCSA
Global Standards Collaboration (GSC)
GSC-15
Current Activities in CCSA
 Current Studies on CRS are undertaken in Working
Group 8 of Wireless Technical Committee, CCSA.
 The project was first discussed in WG8’s 27th
meeting in Nov, 2008; and initiated the work in its
28th meeting in Dec, 2008.
 Current activities can be summarized as two subprojects:
• Technical Report for WRC12 Agenda Item (AI) 1.19
• CR(S) Techniques and its relevant spectrum issues
2
Current Activities in CCSA (cont.)
 The original target of the project was for the
WRC12 Agenda Item 1.19.
 It is believed the techniques research is necessary
and critical for the AI1.19, the scope of the project
extended subsequently.
 Two sub-projects aimed or emphasized different
aspects but have internal relation.
• CRS techniques aspects and relevant spectrum issues
• On regulatory and policy aspects (AI 1.19)
 Two sub-projects’ life cycles are different.
3
Challenges of CRS standardization
 How to transfer CRS work from academia to
industry?
• Concrete use cases and scenarios for CRS deployment
• Tradeoff between advanced theory and industrial reality
 Different environment of regulation
• CRS deployment more influenced by regulation polices
than other radio technologies
• Common ground for consensus in standardization and
scale of economy
Strategic directions
 CRS for IMT system
• Intra-operator scenario
 Spectrum sharing among cells in one RAN
 Standard or mode handover for multi-standard/multi-mode terminal
 Spectrum sharing among different RANs
• Inter-operators scenario is FFS
 CRS for tri-network convergence
• Facilitate the Integration of telecommunications networks, cable TV
networks and the Internet
 Allow different operators to share TVWS band for different service
requirements
 Seamless coverage for different services between different networks
Next step
 To continue CRS work in CCSA
• To complete Technical Report for WRC12 Agenda Item
(AI) 1.19 by mid-2011.
 To promote collaboration between academia and
industry on CRS study
• Research projects on CRS in China: 863, 973…
 To promote collaboration among different regions
on CRS standardization
• In ITU-R, AWF…
Supplemental Slides
7
Researches on the deployment of CRS
 CRS capability could improve IMT systems’
performance
 Upgrading a pre-existing RAT or deploy of a new RAT
to a pre-existing network
 Multi-modes coexistence
 Multi-standards coexistence
 Optimized Resource Usage
 Temporary high capacity coverage
 Tri-Networks integration
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Example: Use case of CR in IMT System
 Different RATs or
modes, could share the
resources with CRS
capabilities, including
wireless resources,
equipment software and
hardware process
resources, etc.
 IMT RATs with CRS
capability could utilize
the TVWS resource and
transfer service from
different networks.
Core Network
RAT 1
RAT 2
RAT 1
RAT 2
RAT 3
TV
TV
TV
TV
RAT 1
RAT 2
RAT 2
TV Band
TV Programm
RAT 3
Type1 UE
Initial Allocation of
Spectrum
Type2 UE
Dynamic Allocation of
Spectrum
Type3 UE
Access Link
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