Interference mitigation in asymmetric lte deployment
AssigneeQUALCOMM Incorporated
InventorsNeng Wang, Jilei Hou, Jiming Guo, Minghai Feng
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Abstract
Interference mitigation solutions are disclosed for interference experienced based on asymmetric uplink (UL)/downlink (DL) slot configuration. The aggressor/victim network entities are identified using either measurement or static/semi-static means, such that the victim network entities that may be impacted by interference from aggressor network entity transmissions are identified. Inter Cell Interference Coordination (ICIC) mechanisms are extended to negotiate and address scheduling that intelligently mitigates interference that occurs in the colliding slots.
Claims52
A method of wireless communication, comprising:
- obtaining condition quality measurements by an aggressor evolved nodeB (eNB) associated with one or more network entities;
- identifying, by the eNB, one or more victim network entities subject to interference from asymmetric uplink (UL)/downlink (DL) slots based on the condition quality measurements;
- and
- transmitting a control signal to the one or more network entities, wherein the control signal relates to mitigation of the interference.
A method of wireless communication, comprising:
- receiving a control signal at a victim evolved nodeB (eNB) from an aggressor eNB, wherein the control signal indicates transmission conditions indicative of interference at the victim eNB;
- and
- scheduling, by the victim eNB, transmissions associated with the victim eNB to mitigate the interference.
An apparatus configured for wireless communication, comprising:
- means for obtaining condition quality measurements by an aggressor evolved nodeB (eNB) associated with one or more network entities;
- means for identifying, by the eNB, one or more victim network entities subject to interference from asymmetric uplink (UL)/downlink (DL) slots based on the condition quality measurements;
- and
- means for transmitting a control signal to the one or more network entities, wherein the control signal relates to mitigation of the interference.
An apparatus configured for wireless communication, comprising:
- means for receiving a control signal at a victim evolved nodeB (eNB) from an aggressor eNB, wherein the control signal indicates transmission conditions indicative of interference at the victim eNB;
- and
- means for scheduling, by the victim eNB, transmissions associated with the victim eNB to mitigate the interference.
A computer program product for wireless communications in a wireless network, comprising:
- a non-transitory computer-readable medium having program code recorded thereon, the program code including:
- program code for causing a computer to obtain condition quality measurements by an aggressor evolved nodeB (eNB) associated with one or more network entities;
- program code for causing the computer to identify, by the eNB, one or more victim network entities subject to interference from asymmetric uplink (UL)/downlink (DL) slots based on the condition quality measurements;
- and
- program code for causing the computer to transmit a control signal to the one or more network entities, wherein the control signal relates to mitigation of the interference.
A computer program product for wireless communications in a wireless network, comprising:
- a non-transitory computer-readable medium having program code recorded thereon, the program code including:
- program code for causing a computer to receive a control signal at a victim evolved nodeB (eNB) from an aggressor eNB, wherein the control signal indicates transmission conditions indicative of interference at the victim eNB;
- and
- program code for causing the computer to schedule, by the victim eNB, transmissions associated with the victim eNB to mitigate the interference.
An apparatus configured for wireless communication, the apparatus comprising:
- at least one processor;
- and
- a memory coupled to the at least one processor,
- wherein the at least one processor is configured:
- to obtain condition quality measurements by an aggressor evolved nodeB (eNB) associated with one or more network entities;
- to identify, by the eNB, one or more victim network entities subject to interference from asymmetric uplink (UL)/downlink (DL) slots based on the condition quality measurements;
- and
- to transmit a control signal to the one or more network entities, wherein the control signal relates to mitigation of the interference.
An apparatus configured for wireless communication, the apparatus comprising:
- at least one processor;
- and
- a memory coupled to the at least one processor,
- wherein the at least one processor is configured:
- to receive a control signal at a victim evolved nodeB (eNB) from an aggressor eNB, wherein the control signal indicates transmission conditions indicative of interference at the victim eNB;
- and
- to schedule, by the victim eNB, transmissions associated with the victim eNB to mitigate the interference.
Dependencies are inferred from the claim text.