Mobile relay handover

Abstract

Managing a handover (e.g. over a Un or Uu connection or interface) of a mobile (moving) relay, MRN, from an eNB (source eNB) to another eNB (target eNB). The source eNB or donor eNB (DeNB) may provide a backhaul link to the mobile relay, MRN, and the MRN may provide an access link to a user equipment (UE). To manage the handover, access information (e.g. Donor eNB, DeNB, cell list) may be received (from an operation and maintenance entity, OAM), and a determination may be made regarding whether one or more target eNBs may be capable of handling the relay based on the access information (i.e. whether it is relay capable, relay accessible, supports relays or not). A target eNB, that may be capable of handing the relay based on the determination, may be selected from the one or more target eNBs to handover the relay to where the selected target eNB may have a communication (backhaul) link with the source eNB. The relay may be handed over from the source eNB to the selected target eNB using the communication link between the source eNB and selected target eNB. The relay may be configured to use radio access network (RAN) shar not ing, a mobility management entity (MME) may be selected; and/or a EUTRAN radio access bearer (E-RAB) may be modified.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of the following U.S. provisional applications: No. 61 / 678,936 filed August 2, 2012, No. 61 / 644,967 filed May 9, 2012, No. 61 filed January 27, 2012 / 591,435 and Ser. No. 61 / 522,361, filed August 11, 2011, the contents of which are hereby incorporated by reference in their entirety. Background technique [0003] Devices such as mobile phones, laptops, tablets, etc., and their use as communication media are becoming increasingly popular today in residential, office and / or school environments. Typically, such devices use wireless communication systems to access data and content. For example, current wireless communication systems include an evolved Node B (eNodeB or eNB) connected to a core network of the wireless communication system. The eNB provides access to the core network by communicating directly with the device, and thereby provides communication functions including data and c...

AI Technical Summary

Problems solved by technology

Unfortunately, the cost of such eNBs is often high, and as the demand for wireless communication systems grows and expands, the number of eNBs thus increased further drives up the cost

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