Invention Grant
US08526374B2 Physical random access channel (PRACH) transmission in multicarrier operation
有权
多载波操作中的物理随机接入信道(PRACH)传输
- Patent Title: Physical random access channel (PRACH) transmission in multicarrier operation
- Patent Title (中): 多载波操作中的物理随机接入信道(PRACH)传输
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Application No.: US12557485Application Date: 2009-09-10
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Publication No.: US08526374B2Publication Date: 2013-09-03
- Inventor: Jelena M. Damnjanovic , Juan Montojo , Peter Gaal , Wanshi Chen , Sai Yiu Duncan Ho
- Applicant: Jelena M. Damnjanovic , Juan Montojo , Peter Gaal , Wanshi Chen , Sai Yiu Duncan Ho
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Milan Patel
- Main IPC: H04W4/00
- IPC: H04W4/00

Abstract:
Systems and methodologies are described that facilitate selecting an uplink carrier for random access within a wireless environment having multiple carriers. Selection of an uplink carrier for random access can be randomly selected from a set of available uplink carriers. Additionally, the uplink carrier for random access can be selected based upon which uplink carrier is paired with an anchor carrier. Further, the uplink carrier for random access can be identified based upon a bandwidth related to the user equipment (UE). Reference signals can also be employed in order to identify an uplink carrier to perform random access.
Public/Granted literature
- US20100067470A1 PHYSICAL RANDOM ACCESS CHANNEL (PRACH) TRANSMISSION IN MULTICARRIER OPERATION Public/Granted day:2010-03-18
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