公开(公告)号：US20240088935A1

公开(公告)日：2024-03-14

申请号：US18460531

申请日：2023-09-01

Applicant: Parallel Wireless, Inc.

Inventor： Ofir Ben Ari Katzav ,  Baruch Navon ,  Randy Rutherford ,  Ran Leviev ,  Keren Gertner Aleb

IPC: H04B1/40

CPC classification number: H04B1/40 ,  H04W88/06

Abstract: Various embodiments of a radio frequency front end (RFFE) are disclosed, in one embodiment comprising: a 2G Global System for Mobile telecommunications (GSM) transceiver; a 4G Long Term Evolution (LTE) transceiver; and a combiner coupled to the 2G GSM transceiver and to the 4G LTE transceiver and to a radio head, coupled to the radio head via at least one stream of IQ samples, the at least one stream carrying samples derived from the 2G GSM transceiver and samples derived from the 4G LTE transceiver. The RFFE may be configured to provide downlink for 2G and 4G. The combiner may be configured to upsample 2G signals from the 2G GSM transceiver to a 4G carrier frequency. The RFFE may be configured to transmit both 2G and 4G on a same frequency band.