Invention Grant
- Patent Title: Over-the-air interference coordination among base stations
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Application No.: US16893270Application Date: 2020-06-04
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Publication No.: US11240688B2Publication Date: 2022-02-01
- Inventor: Sungwoo Park , Arumugam Chendamarai Kannan , Tao Luo , Xiaoxia Zhang , Jing Sun , Srinivas Yerramalli , Vinay Chande , Olufunmilola Omolade Awoniyi-Oteri , Sony Akkarakaran , Mostafa Khoshnevisan , Zhifei Fan , Kaushik Chakraborty
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Holland & Hart LLP
- Main IPC: H04W24/02
- IPC: H04W24/02 ; H04W72/12 ; H04B17/336

Abstract:
Methods, systems, and devices for wireless communications are described. In some systems, transmissions from a neighboring base station may interfere with downlink transmissions from a serving base station to a target user equipment (UE). To coordinate interference between the base stations (e.g., mitigate interference, stabilize interference, etc.), the serving base station may generate an interference coordination message and may transmit the message over-the-air (OTA) to one or more neighboring base stations. The message may include parameters indicating a coordination scheme for the neighboring base station(s) to use for modifying one or more scheduling decisions. The coordination scheme may be configured or dynamically selected and may include interfering beam fixation, interfering beam suppression, or interfering beam avoidance. A neighboring base station receiving the OTA interference coordination message may modify a scheduling decision to mitigate or stabilize interference when the serving base station is transmitting to the target UE.
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