Method for detecting random access of user equipment
US7554955B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Aug 31, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method for detecting random access of User Equipment (UE), applicable to a mobile communication system consisting of at least one Base Station (BS) and a group of UEs; wherein the BS and the group of UE use a set of N (N is a positive integer) orthogonal or quasi-orthogonal pseudo-random sequence codes for UEs' random access. The method comprises: BS receiving a random access signal, and making correlation operation of the received signal with each pseudo-random sequence code in said code set successively to obtain a corresponding correlation result window; finding the maximum correlation peak in the correlation result window, and then dividing a correlation peak window and the front-side and rear-side windows thereof; setting one or more thresholds and comparing them with correlation results in the correlation peak window or in the correlation peak window and the front-side and rear-side windows; when conditions are satisfied, determining that the pseudo-random sequence code involved in the above correlation operation is the pseudo-random sequence code selected by the UE randomly accessed at the moment; thereby, detecting each randomly accessed UE…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.