Invention Grant
- Patent Title: Method for mapping physical random access channels
- Patent Title (中): 物理随机存取通道映射方法
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Application No.: US12912041Application Date: 2010-10-26
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Publication No.: US08477712B2Publication Date: 2013-07-02
- Inventor: Peng Hao , Bin Yu , Shuqiang Xia , Chunli Liang , Bo Dai
- Applicant: Peng Hao , Bin Yu , Shuqiang Xia , Chunli Liang , Bo Dai
- Applicant Address: CN Shenzhen, Gunagdong Province
- Assignee: ZTE Corporation
- Current Assignee: ZTE Corporation
- Current Assignee Address: CN Shenzhen, Gunagdong Province
- Agency: Li & Cai Intellectual Property (USA) Office
- Priority: CN200810094878 20080426
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04J4/00 ; H04L27/28
Abstract:
The present invention discloses a method for mapping physical random access channels, which comprises the following steps: the PRACHs in the same time domain location are mapped from low frequency to high frequency, or from high frequency to low frequency in usable frequency resource, wherein one PRACH occupies 6 resource blocks, and the frequency bands occupied by two adjacent PRACHs in the frequency domain do not overlap; or the PRACHs in the same time domain location are mapped from two sides to the middle in usable frequency resource, wherein one PRACH occupies 6 resource blocks, and the frequency bands occupied by two adjacent PRACHs in the frequency domain do not overlap. The present invention enables uniformly distributing the PRACHs which require to be processed by the same base station in the time domain, and decreasing the inter-cell interference of the second type PRACH to the utmost extent at the same time.
Public/Granted literature
- US20110090863A1 Method for Mapping Physical Random Access Channels Public/Granted day:2011-04-21
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