Invention Grant
- Patent Title: Methods and apparatuses for user equipment-based enhancements of radio link control for multi-point wireless transmission
- Patent Title (中): 用于多点无线传输的无线链路控制用户基于设备增强的方法和装置
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Application No.: US13429927Application Date: 2012-03-26
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Publication No.: US09294235B2Publication Date: 2016-03-22
- Inventor: Danlu Zhang , Weiyan Ge , Rohit Kapoor , Bibhu Prasad Mohanty
- Applicant: Danlu Zhang , Weiyan Ge , Rohit Kapoor , Bibhu Prasad Mohanty
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Darren M. Simon
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04L1/18 ; H04L1/00

Abstract:
In aspects of the present disclosure, a user equipment receives inter-NodeB multi-point transmissions, and a multipoint aggregation component detects a gap in the sequence numbers, delays transmitting a not acknowledged signal (NAK) by starting a NAK delay timer, and transmits, by a transceiver, NAK for the gap in sequence numbers in response to the NAK delay timer expiring and detecting that the gap has not been filled during the delaying. If the Medium Access Control (MAC) entity as the respective NodeB identifies itself to the Radio Link Control (RLC), out-of-order delivery (skew) can eventually be distinguished from genuine data loss before the NAK delay timer expires based upon tracking the highest sequence numbers received. Adaptive NAK delay timer can be performed by monitoring skew duration.
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