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8.2.2 CARRIER AGGREGATION<br />
Figure 8.3. Potential Gain of <strong>DL</strong> CoMP.<br />
In Rel-10, the carrier aggregation work in RAN4 was focused mainly on generic intra-band and inter-band<br />
cases. As discussed in Section 7.4, carrier aggregation will be treated as a release independent feature.<br />
Thus, the Rel-11 work item process will concentrate on band-specific issues related to RF performance,<br />
inter-mod analysis and conformance testing for a real carrier aggregation band combination (which can<br />
be included in TS 36.307 prior to the completion of Rel-11 as explained in Section 7.4). While many band<br />
combinations are expected to be studied over the next few years, RAN-4 and RAN-5 will have early focus<br />
on the following combinations:<br />
a. Inter-band carrier aggregation of Band-4 and Band-13<br />
b. Inter-band carrier Aggregation of Band-4 and Band-17<br />
8.2.3 ENHANCED ICIC<br />
The inclusion of Enhanced ICIC topics has been postponed until March 2011. The following items were<br />
proposed to be studied under this item:<br />
a. Data channel ICIC enhancements, e.g., FDM/TDM coordination and enhanced signaling for<br />
resource allocation<br />
b. Higher layer enhancements, e.g., for idle mode operation and mobility enhancements (RAN1,<br />
RAN2, RAN3, RAN4)<br />
c. Uplink enhancements (e.g. uplink interference mitigation for Macro-Pico and Macro-Femto)<br />
www.4gamericas.org February 2011 Page 85
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