1, signal cross coverage
Nowadays, in order to enhance the signal and improve the communication quality, many operators will carry out signal cross coverage in two adjacent cities, which means that everyone's mobile phone may be connected to the local signal tower or the signal tower in the adjacent city. If it is connected to the signal tower of the corresponding city, it may be located in an adjacent city.
2. System error.
Judging from the reflection of many netizens, there are not many anomalies really caused by signal crossover. For example, some people are clearly in Shenzhen and have never been out of Shenzhen, but the itinerary code is in Inner Mongolia, which is a far cry from each other.
If the travel card is marked with an asterisk, it is necessary to confirm whether it has passed through the middle and high risk area. Implement 14 days of centralized observation and 7 days of health monitoring for personnel in high-risk areas. During centralized observation, we should strictly abide by the management regulations of centralized observation points, cooperate with nucleic acid detection and health monitoring to avoid cross-infection. For personnel in moderate risk areas, implement 14 days of home observation and 7 days of health monitoring; Do not have the conditions for home observation, centralized observation. During the period of home observation, you should strictly abide by the relevant requirements of home observation, do a good job in family protection, and do not leave home. Depending on the circumstances, travel cards marked with an asterisk may not be quarantined. If the user goes to a medium-high risk area, he will be quarantined. If the user has not been to the middle and high risk area, there is no need to isolate. When going out when necessary, you should explain the situation to the destination prevention and control office and other relevant departments in advance, understand the local epidemic prevention and control requirements, and cooperate with relevant local work arrangements.