5g is coming, and so are the changes in the medical industry. Let’s first look at what changes 5g can bring to the medical industry? What are the demands of the Internet? From the perspective of medical industry use scenarios, it can be divided into three scenarios: in hospital, between hospitals and outside hospitals
In hospital: 5g technology can realize wireless monitoring, wireless infusion, mobile nursing, real-time location acquisition and monitoring of patients, real-time access to patients’ image diagnosis, etc., such applications involve patient privacy, network isolation, high security and reliability requirements.
Due to the large number and frequent use of image download and data acquisition, the demand for bandwidth is large.
Between hospitals: 5g technology can realize remote real-time consultation, wireless operation teaching, remote ultrasound, wireless specialist diagnosis and other applications.
Taking remote ultrasound examination as an example, the requirements of high-definition image transmission and real-time operation, single service network bandwidth requirement of 30m, network delay should be less than 20ms. Medical business also needs resource isolation, using special pipeline to isolate from ordinary users.
Outside the hospital: 5g technology provides the possibility for doctors to intervene in advance for Mobile Rescue and critical hospital transfer scenarios, implement treatment in the golden rescue time, and improve the cure rate of patients. This kind of application has strong mobility, random traffic, bandwidth requirement of about 50M / vehicle and delay less than 50ms. When the vehicle undertakes the rescue task, the diagnosis and treatment data and real-time images need special pipeline support, and resources can be released after completing the relevant tasks.
From the perspective of network, the three scenarios of hospital, inter hospital and out of hospital all need high security and reliability of network. According to different scenarios, they can be divided into long-term occupation and temporary emergency demand.
Some people may ask, can’t the traditional network guarantee the demand of these medical scenarios? Why 5g smart medical network must be needed? Now let’s take a look at the strength of 5g smart medical network.
Network traffic burst and conflict are the main culprits of large delay
For the bearer network, under normal circumstances, the delay of a single device is at us level. The main reason for the delay increase is that there is a traffic burst in the network, which will lead to packet loss and delay increase.
Many small partners will naturally think, is it OK to raise the priority of medical business? Things are far from that simple. Facing the 5g era, QoS with only eight priorities can not cope with many types of services.
In order to meet the needs of business isolation, long-term occupation and temporary emergency in the medical industry, 5g smart medical network puts forward the solutions of exclusive channel and preferential channel based on elastic slice, and adopts 5g SA networking mode to realize the end-to-end SLA quality assurance of wireless, network and core network.
Exclusive channel: three key technologies to realize the promise of SLA and realize the high quality of routine business in the medical industry
(1) Network slicing flex hard isolation, SLA manageable. As a new generation of Ethernet technology, flex (flexible Ethernet) can divide a physical link into multiple sub pipelines based on time slot scheduling. The flow between pipelines is strictly isolated to ensure that the business of the pipeline will not be affected in case of other pipeline flow emergencies, just like opening a special lane for ambulances in the transportation system,
It can meet the requirements of bandwidth, delay and service isolation of Medical Union private network.
(2) Ifit + telemetry business level detection, SLA quality real-time perception guarantee, the premise of SLA is business level SLA visible positioning, still take the highway as an example, the traditional detection technology can only through the end-to-end detection method, similar to the highway fixed-point camera way to find a section of road congestion, real-time and accuracy are not enough. Ifit technology adds a message header to the current network traffic, which is equivalent to installing a camera on each vehicle, so that the traffic conditions can be seen at a glance. It can not only realize hop by hop detection, 100% packet loss detection, delay accuracy up to 10-6s, give medical industry users real-time service perception at microsecond level, and realize fast and accurate fault location.
(3) Compared with the traditional best effort forwarding, the exclusive channel realizes the intelligent routing based on network SLA such as delay and bandwidth, which is similar to the way of online map before departure. According to different needs, the path is determined in advance according to the high-speed priority, time priority and shortest path. Ensure that the sliced network can meet the exclusive bandwidth and delay requirements of medical services.
Youxiang channel: dynamic optimization of emergency medical service requirements for ambulances
The emergency rescue scene outside the hospital has strict requirements on suddenness, mobility and safety. There is no need to occupy the exclusive channel for a long time, which belongs to the temporary high experience requirement scene. Youxiang channel solution can dynamically select different flex slices based on business strategy to realize the isolation between multiple services. Even in the case of network congestion, the network indicators in the slice can be guaranteed not to be affected and the medical business experience can be guaranteed.
After testing, the single hop delay can be reduced from 100 ms level to us level. After the end of business, resources can be released at any time to reduce network occupation and cost.
With 5g smart medical network, mobile ward round, wireless monitoring, medical image access, mobile prescription can be realized in the hospital, which reduces the work intensity of medical staff, improves service efficiency, and reduces the coordination time between departments, so as to provide better services for patients and improve medical service satisfaction.
Hospitals can realize telemedicine consultation, remote inspection, video teaching, etc., which greatly improves the skills of grassroots medical units and the level of medical service in remote areas. It is conducive to the integration of medical resources, help hierarchical diagnosis and treatment, and realize medical mutual assistance, so that patients do not have to travel thousands of miles to large hospitals for medical treatment.
In the scene of out of hospital emergency rescue, the critically ill patients are intervened in advance for observation and treatment, and professional medical services are provided to patients in the golden rescue time to improve the cure rate.