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BACKGROUND

The following description of background art may include insights, discoveries, understandings or disclosures, or asso ciations together with disclosures not known to the relevant art prior to the present invention but provided by the inven tion. Some of such contributions of the invention may be specifically pointed out below, whereas other such contribu tions of the invention will be apparent from their context. Wireless communication systems are constantly under development. Developing systems provide a cost-effective Support of high data rates and efficient resource utilization. One communication system under development is the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE). An improved version of the Long Term Evolution radio access system is called LTE-Advanced (LTE-A). The LTE and LTE-A are designed to Support various services, Such as high-speed data. In most …