Invention Grant
- Patent Title: Random access scheme for preventing unnecessary retransmission and user equipment for the same
- Patent Title (中): 用于防止不必要的重传和用户设备的随机接入方案
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Application No.: US12670773Application Date: 2010-01-05
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Publication No.: US09078236B2Publication Date: 2015-07-07
- Inventor: Sung Duck Chun , Sung Jun Park , Seung June Yi
- Applicant: Sung Duck Chun , Sung Jun Park , Seung June Yi
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2009-0130622 20091224
- International Application: PCT/KR2010/000036 WO 20100105
- International Announcement: WO2010/077122 WO 20100708
- Main IPC: H04W74/00
- IPC: H04W74/00 ; H04W56/00 ; H04W74/08
Abstract:
A random access scheme for preventing unnecessary retransmission and a user equipment for the same are disclosed. If a Contention Resolution (CR) timer expires in contention resolution during a random access procedure or if a Physical Downlink Control Channel (PDCCH) signal or a Physical Downlink Shared Channel (PDSCH) signal associated with the PDCCH signal does not match an identifier of a terminal, a Hybrid Automatic Repeat Request (HARQ) buffer for storing a Medium Access Control Packet Data Unit (MAC PDU) transmitted in the random access procedure is flushed such that unnecessary data retransmission can be prevented.
Public/Granted literature
- US20110261763A1 RANDOM ACCESS SCHEME FOR PREVENTING UNNECESSARY RETRANSMISSION AND USER EQUIPMENT FOR THE SAME Public/Granted day:2011-10-27
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