Mobile network operators have reported significant interference in parts of the Enhanced GSM (EGSM) spectrum, particularly in areas near Bangladesh’s borders, during a regulator-supervised technical assessment, reports UNB.
The Bangladesh Telecommunication Regulatory Commission (BTRC) is now considering allocating EGSM spectrum to improve mobile network capacity, coverage, and internet service quality nationwide.
As part of the evaluation, the regulator approved a four-week Proof of Concept (PoC) test from April 12 to May 8, 2026, using 8.4 MHz of spectrum in the 880–888.4 MHz and 925–933.4 MHz bands.
All four mobile operators took part in the trial, using 2G technology across multiple divisions to measure performance and interference levels.
The assessment found the EGSM band to be a practical short-term option, as most mobile handsets in Bangladesh already support it for voice, SMS, and basic data services.
However, the report identified cross-border frequency interference, largely attributed to signals from India, as a key challenge affecting parts of the band.
Operators monitored interference in Rajshahi, Rangpur, Mymensingh, Sylhet, Cumilla, Chattogram, Khulna, Barishal, Cox’s Bazar, and several areas of Dhaka. Most test sites outside Dhaka were located within 5 to 50 kilometres of international borders.
For analysis, the spectrum was divided into two blocks. Block A (880–885 MHz and 925–930 MHz) showed minimal interference in Rajshahi and Khulna but significant disruption in several border regions, potentially affecting 40–50 percent of the country’s area.
Block B (885–888.4 MHz and 930–933.4 MHz) showed comparatively lower interference, with major issues mainly in Rangpur, affecting an estimated 5–10 percent of coverage.
The report said no interference was detected in parts of Dhaka, including Kachukhet and Cantonment, or in Barishal division, making them potential candidates for early deployment.
It recommended further field inspections by BTRC to address cross-border frequency pollution and refine deployment plans.
In their submissions, operators Banglalink and Robi confirmed varying levels of usability across regions, with better performance in central and southern areas and persistent issues in northern and eastern border zones.
The assessment comes as operators continue to seek additional low-band spectrum to improve coverage and service quality.
Previously, Grameenphone acquired 10 MHz in the 700 MHz band through auction, while Robi and Banglalink did not participate. State-owned Teletalk was later allocated 10 MHz in the same band, which is widely valued for its strong rural coverage and indoor penetration.
Bd-pratidin English/ Jisan
