Invention Grant
- Patent Title: Method, apparatus and system for processing very-high-speed random access
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Application No.: US14600615Application Date: 2015-01-20
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Publication No.: US09674872B2Publication Date: 2017-06-06
- Inventor: Li Wan
- Applicant: HUAWEI TECHNOLOGIES CO., LTD.
- Applicant Address: CN Shenzhen
- Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee Address: CN Shenzhen
- Agency: Staas & Halsey LLP
- Priority: CN201210278680 20120807
- Main IPC: H04J11/00
- IPC: H04J11/00 ; H04W74/08 ; H04W74/00 ; H04J13/00 ; H04J13/16

Abstract:
The present invention discloses a method, an apparatus and a system for processing very-high-speed random access. The method includes: selecting a ZC sequence group according to a cell type and a first cyclic shift parameter Ncs, and setting N detection windows for each ZC sequence in the ZC sequence group, where N≧5; sending the cell type, a second Ncs, and the ZC sequence group to a UE; receiving a random access signal sent by the UE, and obtaining the random access sequence from the random access signal; performing correlation processing on the random access sequence with each ZC sequence in the ZC sequence group, detecting a valid peak value in the N detection windows of each ZC sequence, and determining an estimated value of an RTD according to the valid peak value, so that a UE in a very-high-speed scenario can normally access a network, thereby improving network access performance.
Public/Granted literature
- US20150131426A1 METHOD, APPARATUS AND SYSTEM FOR PROCESSING VERY-HIGH-SPEED RANDOM ACCESS Public/Granted day:2015-05-14
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