Relay Enhanced Cellular Telecommunication Network
First Claim
1. A method comprising:
- selecting a single mobility management entity pool for all user equipments connected to a specified relay node associated with a donor base station; and
communicating the identity of the selected mobility management entity pool to the specified relay node.
1 Assignment
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Accused Products
Abstract
Systems and techniques for avoiding inefficiencies resulting from failed handover attempts. A base station selects one or more mobility management entity (MME) pools for assignment to a relay nod; with the selection being performed so as to minimize or eliminate handover attempts requiring that a target device support a particular MME pool when the MME pool is not supported by the MME. A base station selects, when communicating with a relay node, a subset of the MME pools that it supports and assigns the subset to the base station. UEs served by the relay node are assigned the MME pool or MME pools assigned to the relay node. The relay node is informed of the MME pools supported by one or more neighbor nodes and, when attempting a handover to a neighbor node, attempts an X2 handover only to neighbor nodes supporting an MME pool assigned to the relay node.
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Citations
17 Claims
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1. A method comprising:
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selecting a single mobility management entity pool for all user equipments connected to a specified relay node associated with a donor base station; and communicating the identity of the selected mobility management entity pool to the specified relay node. - View Dependent Claims (2)
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3. A method comprising:
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identifying a mobility management entity pool serving a user equipment associated with a relay node operating in a wireless network; receiving information identifying one or more mobility management entity pools supported by a handover target; comparing the one or more mobility management entity pools supported by the handover target to the mobility management entity pool serving the user equipment; if the handover target supports the mobility management entity pool serving the user equipment, initiating an X2 handover to handover the mobility management entity to the target; and if the handover target does not support the mobility management entity pool serving the user equipment, initiating an S1 handover to handover the user equipment to the target. - View Dependent Claims (4, 5, 6, 7)
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8. A non-transitory computer readable medium storing a program of instructions, execution of which by a processor causes an apparatus to at least:
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identify a mobility management entity pool serving a user equipment associated with a relay node operating in a wireless network; receive information identifying one or more mobility management entity pools supported by a handover target; compare the one or more mobility management entity pools supported by the handover target to the mobility management entity pool serving the user equipment; if the handover target supports the mobility management entity pool serving the user equipment, initiate an X2 handover to handover the user equipment to the target; and if the handover target does not support the mobility management entity pool serving the user equipment, initiate an S1 handover to handover the user equipment to the target.
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9. An apparatus comprising:
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at least one processor; memory storing computer program code; wherein the memory storing the computer program code is configured, with the processor, to cause the apparatus to at least; identify a mobility management entity pool serving a user equipment associated with a relay node operating in a wireless network; receive information identifying one or more mobility management entity pools supported by a handover target; compare the one or more mobility management entity pools supported by the handover target to the mobility management entity pool serving the user equipment; if the handover target supports the mobility management entity pool serving the user equipment, initiate an X2 handover to handover the user equipment to the target; and if the handover target does not support the mobility management entity pool serving the user equipment, initiate an S1 handover to handover the user equipment to the target. - View Dependent Claims (10, 11, 12, 13)
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14. An apparatus comprising:
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at least one processor; memory storing computer program code; wherein the memory storing the computer program code is configured, with the processor, to cause the apparatus to at least; select a single mobility management entity pool for all user equipments connected to a specified relay node associated with a donor base station; and communicate the identity of the selected mobility management entity pool to the specified relay node. - View Dependent Claims (15)
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16. A non-transitory computer-readable medium storing a program of instructions, execution of which by a processor configures an apparatus to at least:
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select a single mobility management entity pool for all user equipments connected to a specified relay node associated with a donor base station; and communicate the identity of the selected mobility management entity pool to the specified relay node. - View Dependent Claims (17)
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Specification