| 11.1 | In order to avoid interference between TDD networks operating in adjacent frequency carriers, the radio transmissions of adjacent TDD networks should be synchronized with the uplink and downlink frames aligned in time. Such synchronization of TDD networks is very important because it is the best way to avoid interference between networks and ensures efficient use of spectrum resources by avoiding inter-operator guard bands and additional base station filtering. Otherwise, the uplink and downlink interference cannot be eliminated or avoided in terms of technical measures. |