Invention Grant
- Patent Title: Correction of specific intermodulation products in a concurrent multi-band system
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Application No.: US16641180Application Date: 2017-08-30
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Publication No.: US11265201B2Publication Date: 2022-03-01
- Inventor: Arthur Thomas Gerald Fuller , Mark Edward Rollins
- 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/IB2017/055225 WO 20170830
- International Announcement: WO2019/043434 WO 20190307
- Main IPC: H04L27/36
- IPC: H04L27/36 ; H03F1/32 ; H03F3/213 ; H04B1/04

Abstract:
Systems and methods are disclosed herein for selectively compensating for a specific Intermodulation Distortion (IMO) product(s) of an arbitrary order in a transmitter system. In some embodiments, a method of compensating for one or more specific IMO products in a concurrent multi-band transmitter system comprises generating an IMO correction signal for a specific IMO product as a function of two or more frequency band input signals for two or more frequency bands of a concurrent multi-band signal, the IMO product being an arbitrary order IMD product. The method further comprises frequency translating the IMD correction signal to a desired frequency that corresponds to a Radio Frequency (RF) location of the specific IMO product and, after frequency translating the IMO correction signal to the desired frequency, utilizing the IMO correction signal to compensate for the specific IMO product.
Public/Granted literature
- US20210144046A1 CORRECTION OF SPECIFIC INTERMODULATION PRODUCTS IN A CONCURRENT MULTI-BAND SYSTEM Public/Granted day:2021-05-13
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