SWRA536 February   2016 CC2520 , CC2520 , CC2530 , CC2530 , CC2530-RF4CE , CC2530-RF4CE , CC2533 , CC2533 , CC2540 , CC2540 , CC2541 , CC2541 , CC2640 , CC2640 , CC2640R2F , CC2640R2F , CC2640R2F-Q1 , CC2640R2F-Q1 , CC2640R2L , CC2640R2L , CC2650 , CC2650 , CC2650MODA , CC2650MODA

 

  1.   ETSI EN 300 328 RX Blocking Test for Bluetooth Low Energy
    1.     Trademarks
    2. 1 Introduction
    3. 2 ETSI EN 300 328 V2.1.1 Requirement
    4. 3 Test Setup
      1. 3.1 Test Equipment
      2. 3.2 R&S Waveform
      3. 3.3 Connection
      4. 3.4 TX Setup
      5. 3.5 RX Setup
    5. 4 Measurement Data
      1. 4.1 TX CW Blocker Setup
      2. 4.2 Low Channel Sensitivity (2402 MHz)
      3. 4.3 High Channel Sensitivity (2480 MHz)
      4. 4.4 BLE PER vs Blocking Requirement (ETSI EN 300 328 V2.1.1)
    6. 5 References

2 ETSI EN 300 328 V2.1.1 Requirement

The ETSI specification divides receivers into three different categories: category 1 to category 3. The categorization can be found in the Categorization section in the ETSI specification (V2.1.1, 2016, p.15). Bluetooth low energy devices fall in either category 2 or category 3 based on Medium Utilization (MU), a product of TX duty cycle and output power. Category 2 covers devices with output power between 0 and 10 dBm assuming 100% duty cycle, and has stricter requirements than category 3. As the CC2640 easily fulfills the requirements for category 2, we will only focus on these requirements throughout this document.

The blocking requirements for receiver category 2 is found in the Receiver Category 2 section in the ETSI specification (V2.1.1, 2016, p. 38).

Table 1. Receiver Blocking Parameters Receiver Category 2 Equipment

Wanted Signal Mean Power
From Companion Device (dBm)		 Blocking Signal Frequency (MHz) Blocking SIgnal Power (dBm)
(see (2))		 Type of Blocking Signal
Pmin + 6 dB
(see (1))		 2380
2503.5		 -57 CW
Pmin + 6 dB
(see (1))		 2300
2583.5		 -47 CW
(1) Pmin is the minimum level of the wanted signal (in dBm) required to meet the minimum performance criteria as defined in the clause in the Performance Criteria section of ETSI EN 300 328 V2.1.1 in the absence of any blocking signal.
(2) The levels specified are levels in front of the UUT antenna. In case of conducted measurements, the levels have to be corrected by the actual antenna assembly gain.

Tests should be performed at both lowest and highest operating frequency according to the Test Conditions section in the ETSI specification (V2.1.1, 2016, p. 72).