Test Data Re-Use Letter

FCC ID: XPYJODYW164-07A

Cover Letter(s)

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FCCID_4035065

FCC certification of JODY-W164-A product variants 1. Background This document is submitted as a cover letter to our KDB enquiry on the use and applicability of test reports obtained from JODY-W164-03A on JODY-W164-07A, furthermore to ask for instructions for additionally required tests. u-blox intend to file applications for single-modular transmitter approval for our product types JODY- W164-03A and JODY-W164-07A. The products are currently being tested at an accredited test lab. The following table provides an overview of the FCC ID and respective product variants. FCC ID u-blox product ordering code XPYJODYW164 JODY-W164-03A XPYJODYW164-07A JODY-W164-07A The JODY-W164-A product family stands for host-based multi-radio modules with Wi-Fi (802.11a/b/g/n/ac) and Bluetooth 4.2. KDB 484596 D01 provides guidance for referencing test data across separate equipment authorization applications. Since the KDB is in DRAFT status we hereby ask for confirmation that following the guidance of KDB 484595 D01 is sufficient or if additional requirements may apply? 2. Product description, technical differences Supported radio technologies and operating modes Both JODY-W164-A products offer two antenna pins, ANT0 and ANT1. The following radio technologies are available at the two antennas pins: u-blox ordering code: JODY-W164-03A JODY-W164-07A Antenna pin: ANT0 Bluetooth, Bluetooth 5 GHz Wi-Fi ANT1 2.4 GHz Wi-Fi, 2.4 GHz Wi-Fi, 5 GHz Wi-Fi 5 GHz Wi-Fi JODY-W164-03A supports 1x1 SISO operation in the 2.4 GHz band and 2x2 MIMO operation in the 5 GHz band, whereas JODY-W164-07A supports 1x1 SISO operation in both, 2.4 GHz and 5 GHz bands. Real simultaneous dual-band (RSDB) operation of 2.4 and 5 GHz Wi-Fi is supported by both product types on ANT1. Both product types support Bluetooth on ANT0.

Block diagrams Figure 1: Block diagram of JODY-W164-03A Figure 2: Block diagram of JODY-W164-07A In JODY-W164-07A, the band pass filter labelled “2.4 GHz BPF (LTE coex.)” is a BAW filter that enables co-existence with LTE. In JODY-W164-03A, the bandpass filters “2.4 GHz BPF” are ceramic bandpass filters.

RF-related design considerations Both product types are assembly variants of the same Printed Circuit Board (PCB), the trace layouts of the ANT1 antenna pin of JODY-W164-03A and JODY-W164-07A are identical. JODY-W164-07A uses a different type of 2.4 GHz band-pass filter (selected to improve co-existence with LTE transmitters operating in neighboring bands of the 2.4 GHz ISM band) that is footprint-compatible with the 2.4 GHz band-pass filter on JODY-W164-03A. The trace layouts on ANT0 differ between JODY-W164-03A and JODY-W164-07A. The diplexer component is not populated on the JODY-W164-07A design and a bypass trace connects directly to the module’s antenna pin ANT0. The radio transceiver chips used in the two products are from CYPRESS, part numbers CYP88359 and CYP89359. The difference between the two part numbers is that CYP89359 has an automotive-grade AEC-Q100 qualification. This results in extended quality assurance measures and service level agreements. The devices have identical technical specifications and are thus considered being identical for our modular transmitter certification application. Both product types use exactly the same firmware and host software running on the external host. 3. Proposed re-use of test reports Since the TX/RX RF paths for 5 GHz Wi-Fi on ANT1 are identical on both product types JODY-W164-03A and JODY-W164-07A, we ask for permission to re-use the respective test report(s) from JODY-W164-03A for JODY-W164-07A. The TX/RX RF paths for 2.4 GHz Wi-Fi on ANT1 differ only in the populated band-pass filter. Therefore we propose to perform full tests on JODY-W164-03A and only spot-check measurements for JODY-W164- 07A for worst-case conditions to provide sufficient evidence to apply the test results from JODY-W164- 03A to JODY-W164-07A. Likewise, for Bluetooth testing we propose to perform full tests on JODY-W164-03A and only spot-check measurements for JODY-W164-07A for worst-case conditions to provide sufficient evidence to apply the test results from JODY-W164-03A to JODY-W164-07A. With this letter we ask for permissions and instructions to re-use test reports on Wi-Fi 2.4 GHz, Wi-Fi 5 GHz, and Bluetooth as outlined above and summarized in Section 4 below.

4. Planned test reports as basis for FCC certification JODY-W164-03A Scope of report Standard compliance Tested model Test report reference Comments WLAN 2.4 GHz FCC 15.247 JODY-W164-03A FCCa Full tests WLAN 5 GHz FCC 15.407 JODY-W164-03A FCCb Full tests Bluetooth FCC 15.247 JODY-W164-03A FCCa Full tests DFS client FCC 15.407 JODY-W164-03A FCCb Full tests Simultaneous FCC 15.247, FCC 15.407 JODY-W164-03A FCCc WLAN 5 GHz, WLAN 2.4 GHz and Bluetooth transmission simultaneous transmission JODY-W164-07A Scope of report Standard compliance Tested model Test report reference Comments WLAN 2.4 GHz FCC 15.247 JODY-W164-03A FCCa Re-use of test report JODY-W164-07A FCCd Spotchecks WLAN 5 GHz FCC 15.407 JODY-W164-03A FCCb Re-use of test report Bluetooth FCC 15.247 JODY-W164-03A FCCa Re-use of test report JODY-W164-07A FCCd Spotchecks DFS client FCC 15.407 JODY-W164-03A FCCb Re-use of test report. JODY-W164-07A has identical 5 GHz hardware and DFS software configuration as JODY-W164-03A. Simultaneous FCC 15.247, FCC 15.407 JODY-W164-07A FCCe Full tests. transmission WLAN 5 GHz, WLAN 2.4 GHz and Bluetooth simultaneous transmission


Document Created: 2018-02-07 07:58:32
Document Modified: 2018-02-07 07:58:32
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