Invention Grant
- Patent Title: Estimating frequency offset at a subscriber station receiver
- Patent Title (中): 估计用户台接收机的频偏
-
Application No.: US11900799Application Date: 2007-09-13
-
Publication No.: US07813437B2Publication Date: 2010-10-12
- Inventor: Sriram Mudulodu , Louay Jalloul
- Applicant: Sriram Mudulodu , Louay Jalloul
- Applicant Address: US CA Santa Clara
- Assignee: BECEEM Communications Inc.
- Current Assignee: BECEEM Communications Inc.
- Current Assignee Address: US CA Santa Clara
- Agent Brian R. Short
- Main IPC: H04L27/28
- IPC: H04L27/28

Abstract:
A method and system of estimating frequency offset at a subscriber station is disclosed. The method includes the subscriber station receiving a composite signal, in which the composite signal includes multi-carrier signals transmitted from a plurality of base stations. The subscriber station selects a subset of the plurality of base stations. The subscriber station selects at least one pair of multi-carrier symbols of the composite signal, wherein each of the at least one pair of multi-carrier symbols include a plurality of pilot sub-carriers. The subscriber station selects a subset of the plurality of pilot sub-carriers of the at least one pair of multi-carrier symbols based on transmit pilot symbols of the pilot sub-carriers of the multi-carrier signals transmitted by the subset of the plurality of base stations. The frequency offset is estimated based on a conjugate product between received symbols across at least one pair of multi-carrier symbols of each of the pilot sub-carriers of the selected subset of the plurality of pilot sub-carriers.
Public/Granted literature
- US20090074045A1 Estimating frequency offset at a subscriber station receiver Public/Granted day:2009-03-19
Information query