Invention Grant
US09112691B2 Methods and systems for downlink flow control in a wireless communication system
有权
无线通信系统中下行链路流量控制的方法和系统
- Patent Title: Methods and systems for downlink flow control in a wireless communication system
- Patent Title (中): 无线通信系统中下行链路流量控制的方法和系统
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Application No.: US13208203Application Date: 2011-08-11
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Publication No.: US09112691B2Publication Date: 2015-08-18
- Inventor: Navid Eshan , Thomas Klingenbrunn , Shailesh Maheshwari , Gang Andy Xiao
- Applicant: Navid Eshan , Thomas Klingenbrunn , Shailesh Maheshwari , Gang Andy Xiao
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Patterson & Sheridan, L.L.P.
- Main IPC: H04L1/18
- IPC: H04L1/18 ; H04L1/00 ; H04L1/16 ; H04L12/801 ; H04W72/12

Abstract:
Methods and apparatus for downlink rate control by a user equipment (UE) (e.g., when an overload condition happens at the UE) are provided. For example, the UE may experience CPU overload, CPU near-overload, memory overload, memory near-overload, overheating or near-overheating. For certain aspects, the UE may simulate a “degraded channel” in order to cause an eNodeB to lower a transmission rate or block-size as it would in response to receiving an indication of bad channel conditions. The UE may simulate a degraded channel by modifying a channel quality indicator (CQI) and transmitting negative acknowledgment (NACK) messages to the eNodeB. Therefore, the eNodeB may be responsible for guaranteeing quality of service (QoS) based on the new degraded channel condition. In other aspects, UE downlink flow control is achieved by dropping hybrid automatic repeat request (HARM) packets or reducing a radio link control (RLC) receive window size when an overload condition occurs.
Public/Granted literature
- US20120039176A1 METHODS AND SYSTEMS FOR DOWNLINK FLOW CONTROL IN A WIRELESS COMMUNICATION SYSTEM Public/Granted day:2012-02-16
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