Invention Grant
- Patent Title: Transceiver architecture that maintains legacy timing by inserting and removing cyclic prefix at legacy sampling rate
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Application No.: US15736258Application Date: 2016-07-12
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Publication No.: US10069666B2Publication Date: 2018-09-04
- Inventor: Xingqin Lin , Asbjörn Grövlen , Niklas Johansson , Yi-Pin Eric Wang , Christian Hoymann
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Withrow & Terranova, PLLC
- International Application: PCT/IB2016/054160 WO 20160712
- International Announcement: WO2017/013533 WO 20170126
- Main IPC: H04B15/00
- IPC: H04B15/00 ; H04L27/26 ; H04B7/04 ; H04L25/02 ; H04B1/10

Abstract:
Systems and methods relating to a transceiver architecture that maintains legacy timing by inserting and removing a cyclic prefix at a legacy sampling rate are disclosed. In some embodiments, a system for a receiver comprises an upsampling subsystem, a cyclic prefix removal unit, and a downsampling subsystem. The upsampling subsystem is operable to process a first baseband receive signal that is at a first sampling rate to generate an upsampled baseband receive signal at a second sampling rate that is greater than the first sampling rate. The cyclic prefix removal unit is operable to remove a cyclic prefix from the upsampled baseband receive signal to provide a second baseband receive signal at the second sampling rate. The downsampling subsystem is operable to process the second baseband receive signal to generate a downsampled baseband receive signal at the first sampling rate. In this manner, complexity and power consumption are reduced.
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