WO2021134650A1

WO2021134650A1 - Wireless communication device

Info

Publication number: WO2021134650A1
Application number: PCT/CN2019/130870
Authority: WO
Inventors: 陈长根; 李向甲; 徐君; 徐利; 张珍奇
Original assignee: 深圳迈瑞生物医疗电子股份有限公司
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-08
Also published as: CN114073125A

Abstract

Provided is a wireless communication device, comprising: a communication module used for communicating with a wireless medical device and/or receiving an interference signal; a processor used for obtaining the bandwidth of the communication signal and determining the bandwidth of the interference signal when it is determined that a communication signal between the wireless communication device and the wireless medical device is interfered with by the interference signal, wherein the communication frequency band of the communication signal is at least partly not overlapped with that of the interference signal; calculating the target bandwidth of the communication signal on the basis of the bandwidth of the communication signal and the bandwidth of the interference signal; sending a setting instruction to a baseband controller, wherein the setting instruction carries a target bandwidth; and a baseband controller used for setting a channel bandwidth to the target bandwidth after receiving the setting instruction. The wireless communication device can adjust the bandwidth of its own communication channel according to the bandwidth of the interference signal so as to reduce the interference. In addition, further provided are other related devices and a storage medium.

Description

Communication channel bandwidth setting method and related equipment

Technical field

This application relates to the technical field of medical equipment, and more specifically, a communication channel bandwidth setting method and related equipment.

Background technique

In the medical field, real-time monitoring of patient objects can be achieved through telemetry systems. The telemetry system is a medical communication system, as shown in Figure 1, it may include: a portable monitoring device, a wireless communication device (Access Point, AP for short), and a remote monitoring center. The portable monitoring device can also be called a telemetry box, which is worn on the patient's body and can collect the physiological parameters of the monitored object in real time. The portable monitoring device sends the collected physiological parameters to the remote monitoring center through the wireless communication device, and the remote monitoring center can also send control instructions to the portable monitoring device through the wireless communication device.

The wireless communication equipment is deployed in a certain spatial range, and wireless communication equipment of a variety of telemetry systems may be deployed in the spatial range, or wireless communication equipment of other medical communication systems other than the telemetry system may be deployed. There may be communication interference between different medical communication systems, or there may be co-frequency interference between the same medical communication systems.

Summary of the invention

In a first aspect, the present application provides a wireless communication device, where the wireless communication device is connected to at least one wireless medical device, including:

The communication module is used to communicate with the wireless medical device and/or receive interference signals;

The processor is configured to obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal when it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal; wherein the communication The signal and the interference signal do not overlap at least part of the communication frequency band; based on the bandwidth of the communication signal and the bandwidth of the interference signal, calculate the target bandwidth of the communication signal; send a setting instruction to the baseband controller, and the setting instruction carries all The target bandwidth;

The baseband controller is configured to set the channel bandwidth to the target bandwidth after receiving the setting instruction.

In a second aspect, the present application provides a wireless communication device connected to at least one wireless medical device, including:

The communication module is used to communicate with wireless medical equipment and/or receive interference signals;

The processor is configured to detect, in the communication gap between the wireless communication device and the wireless medical device, that an interference signal having a communication frequency band that is at least partially different from the communication frequency band of the wireless communication device is received, to obtain the bandwidth of the communication signal, and to determine The bandwidth of the interference signal; calculate the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal; send a setting instruction to the baseband controller, the setting instruction carrying the target bandwidth;

In a third aspect, the present application provides a communication channel bandwidth setting method, which is applied to a wireless communication device, and the wireless communication device is connected to at least one wireless medical device. The method includes:

When it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal, obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal; wherein the communication signal and the interference signal are at least Some communication frequency bands do not overlap;

Calculating the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal;

The channel bandwidth of the wireless communication device is set to the target bandwidth.

In a fourth aspect, the present application provides a communication channel bandwidth setting method, which is applied to a wireless communication device, and the wireless communication device is connected to at least one wireless medical device. The method includes:

In the communication gap between the wireless communication device and the wireless medical device, it is determined that an interference signal whose communication frequency band and the communication frequency band of the wireless communication device are at least partially non-overlapping is received;

Obtaining the bandwidth of the communication signal and determining the bandwidth of the interference signal;

When the medical communication system is interfered by other medical communication systems, the wireless communication device adjusts the bandwidth of its own communication channel according to the bandwidth of the interference signal to reduce or even eliminate the interference received by the wireless communication device.

In a fifth aspect, the present application provides a wireless medical device, where the wireless medical device is connected to a wireless communication device, including:

The communication module is used to communicate with the wireless communication device and/or receive interference signals;

A processor, configured to determine that the communication signal between the wireless medical device and the wireless communication device is interfered by the interference signal, obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal; wherein the communication signal At least part of the communication frequency band does not overlap with the interference signal; calculate the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal; send a setting instruction to the baseband controller, and the setting instruction carries the Target bandwidth

In a sixth aspect, this application provides a communication channel bandwidth setting method, which is applied to wireless medical equipment, and the method includes:

When it is determined that the communication signal between the wireless medical device and the wireless communication device is interfered by the interference signal, obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal; wherein the communication signal and the interference signal are at least Some communication frequency bands do not overlap;

The channel bandwidth of the wireless medical device and/or the wireless communication device is set as the target bandwidth.

When the medical communication system is interfered by other medical communication systems, the wireless medical device adjusts the bandwidth of its communication channel according to the bandwidth of the interference signal to reduce or even eliminate the interference received by the wireless medical device.

In a seventh aspect, this application provides a medical communication system management device, including:

A processor, configured to obtain the total channel bandwidth that the medical communication system needs to set to, where the medical communication system includes a number of wireless communication devices; determine the target channel bandwidth that the wireless communication device needs to set to, according to the total channel bandwidth; Based on the target channel bandwidth that the wireless communication device needs to be set to, determine the first maximum number of wireless medical devices that the wireless communication device can connect to; determine the number of wireless medical devices that the wireless communication device can connect to under the current channel bandwidth A second maximum number; if the first maximum number does not exceed the second maximum number, send a setting instruction to the communication module, the setting instruction carrying the target channel bandwidth;

The communication module is configured to send the setting instruction to the wireless communication device, where the setting instruction is used to instruct the wireless communication device to set the channel bandwidth to the target channel bandwidth.

In an eighth aspect, this application provides a communication channel bandwidth setting method, which is applied to a medical communication system management device, and the method includes:

Obtain the total channel bandwidth that the medical communication system needs to be set to, where the medical communication system includes several wireless communication devices;

Determine the target channel bandwidth that the wireless communication device needs to set to according to the total channel bandwidth;

Determine the first maximum number of wireless medical devices that the wireless communication device can connect to based on the target channel bandwidth that the wireless communication device needs to be set to;

Determining the second maximum number of wireless medical devices that the wireless communication device can connect to under the current channel bandwidth;

When the first maximum number is less than or equal to the second maximum number, the channel bandwidth of the wireless communication device is set as the target channel bandwidth.

In the case of shortening the total channel bandwidth of the medical communication system, the medical communication system management device can adjust the channel bandwidth of the wireless communication device according to the adjusted total channel bandwidth and the number of wireless communication devices, and the adjusted channel bandwidth capacity meets the requirements of the wireless medical device Connection requirements.

In a ninth aspect, the present application provides a readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the communication channel bandwidth setting method of any one of the above is implemented.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a schematic diagram of an architecture of a medical communication system;

Figure 2A is a schematic diagram of a 600MHz spectrum distribution diagram;

Figure 2B is a schematic diagram of communication interference between the WMTS system and the UFH system;

FIG. 3 is a schematic flowchart of an embodiment of a method for setting a communication channel bandwidth;

Figure 4A is a schematic diagram of communication channel adjustment;

4B is a schematic diagram of a wireless communication device adjusting a communication channel in a network deployment structure scenario;

FIG. 5 is a schematic flowchart of another embodiment of a method for setting a communication channel bandwidth;

Figure 6 is another schematic diagram of a wireless communication device adjusting a communication channel in a network deployment structure scenario;

FIG. 7 is a schematic flowchart of another embodiment of a method for setting a communication channel bandwidth;

FIG. 8 is another schematic diagram of a wireless communication device adjusting a communication channel in a network deployment structure scenario;

Fig. 9 is a schematic diagram of a structure of a wireless communication device.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Hospitals usually deploy medical communication systems to send data from medical equipment on one side to medical equipment on the other side. A specific structure of the medical communication system is shown in Figure 1. The portable monitoring device communicates with the remote monitoring center through the wireless communication device. A portable monitoring device can communicate with one or more wireless communication devices, and a wireless communication device can also communicate with one or more wireless communication devices. Can communicate with one or more portable monitoring devices. It should be noted that the medical communication system shown in FIG. 1 may also be referred to as a telemetry system.

In the medical communication system, wireless medical equipment and wireless communication equipment use wireless communication resources for communication, such as 608~614MHz, 1395~1400MHz, 1427~1432MHz and other special telemetry frequency bands or 433MHz, 2.4GHz, 5.8GHz and other ISM (Industrial Scientific Medical, industrial science medical) frequency band.

It should be noted that when a communication network is deployed in actual applications, multiple different medical communication systems may be deployed in the same space, and different medical communication systems use different communication frequency bands. The different communication frequency bands may not overlap or partially overlap each other. Does not overlap. As shown in Figure 2A, the 600MHz spectrum distribution diagram, UHF (Ultra High Frequency) system uses 36 channels of communication frequency band, RAS (Radio Astronomy Service, wireless astronomy service) system or WMTS (Wireless Medical Telemetry Services, wireless The medical telemetry service) system uses 37-channel communication frequency band. The communication frequency bands of the two channels are completely non-overlapping and adjacent, and the communication signals of the two medical communication systems will interfere with each other. As shown in Figure 2B, the communication signal of the WMTS system may be interfered by the communication signal of the UHF system, thereby superimposing an interference noise in the communication signal of the WMTS system. Noise interference will affect the quality of communication, resulting in a decrease in communication rate or even communication interruption, which in turn affects medical operations such as normal monitoring or treatment.

In order to solve the communication interference of different medical communication systems, you can consider changing the network layout, such as increasing the distance between the wireless communication devices of different medical communication systems, etc. However, this requires re-planning and changing the deployment location of the wireless communication devices, and the engineering cost is relatively high. High and time-consuming, low efficiency.

This application provides a communication channel bandwidth setting method, which is applied to a wireless communication device. As shown in FIG. 1, the wireless communication device is connected to at least one wireless medical device such as a portable monitoring device in a wireless manner. See Fig. 3, which shows a flow of an embodiment of a method for setting a communication channel bandwidth, which specifically includes S301 to S303.

S301: When it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal, obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal.

Among them, the wireless communication device and the wireless medical device belong to the same medical communication system. In order to distinguish it from other medical communication systems, the medical communication system becomes the current medical communication system. Wireless communication signals are used for communication between wireless communication devices and wireless medical devices, and the communication signals may be interfered by communication signals of other medical communication systems. At least part of the communication frequency bands of the communication signal and the interference signal do not overlap, that is, the communication frequency bands of the communication signal and the interference signal do not overlap at all or partially do not overlap.

The wireless communication device detects whether the communication signal between itself and the wireless medical device is interfered by interference signals. This application provides the following detection methods, which can also be used in combination.

One detection method may be to detect whether the interference power of the interference signal received by the wireless communication device reaches a preset interference power threshold.

Specifically, the wireless communication device performs frequency domain analysis on the received digital signal. The digital signal includes the communication signal of the medical communication system where it is located, and may also include interference signals from other medical communication signals. Frequency domain analysis can determine whether there are interference signals. . If there is an interference signal, calculate the power of the interference signal, and this power is called the interference power.

Since the interference of this medical communication system may come from many different aspects, for example, there may be interference between wireless communication devices in this medical communication system. Therefore, in order to accurately determine that the interference is caused by other medical communication systems, according to other medical communication systems The interference intensity that the communication system may cause to the wireless communication equipment, the interference power threshold is preset. The calculated interference power is compared with the interference power threshold, and if the interference power is greater than or equal to the interference power threshold, it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered. It should be noted that the interference power threshold may be set to different values according to actual application conditions, and this application does not limit the specific value.

Another detection method is to determine whether the communication channel of the wireless communication device is a boundary communication channel in the communication frequency band where it is located, and if so, whether the communication signal between the wireless communication device and the wireless medical device is interfered by interference signals.

Specifically, the communication frequency band used by this medical communication system may be divided into multiple communication channels. The communication channel may be a boundary communication channel in the communication frequency band. The boundary communication channel refers to the communication channel corresponding to the lowest or highest communication frequency band. It is understandable that there will be interference between adjacent communication channels, and the interference of non-adjacent communication channels may not necessarily occur. In other words, the boundary communication channel of this medical communication system is more likely to be interfered by other medical communication systems. Therefore, the wireless communication device can first determine whether its own communication channel is a boundary communication channel, and if so, then detect whether the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal. The detection method can refer to the first detection method. .

In this detection method, not all wireless communication devices in the medical communication system need to detect interference signals, and only wireless communication devices that use boundary communication channels need to perform detection, thereby avoiding waste of resources.

Of course, this detection method can also be automatically implemented based on pre-configuration, that is, which wireless communication devices use which communication channels are pre-configured, and the detection process is opened for wireless communication devices that use the boundary communication channel. Only the wireless communication device that starts the detection process will automatically It is detected whether the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal, but the wireless communication device that has not started the detection process will not perform the detection, thereby avoiding the waste of resources.

Another detection method is to detect whether the communication state between the wireless communication device and the wireless medical device is a preset poor communication state, and if so, detect whether the communication signal between the wireless communication device and the wireless medical device is interfered by interference signals .

Specifically, the wireless communication device first detects whether the communication state between itself and the wireless medical device is poor. If the communication state is poor, it may be interfered, and then specifically detects the communication signal between the wireless communication device and the wireless medical device. Whether it is interfered by interference signals, the detection method can refer to the first detection method. It should be noted that the wireless communication device can obtain the communication state between the wireless communication device and the wireless medical device, and determine whether the communication state is a preset poor communication state. Of course, the communication state can be detected by the wireless communication device itself, or sent to the wireless communication device by other devices such as wireless medical devices.

Or in order to further reduce resource consumption, when the communication state is a preset poor communication state, it is directly determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal.

Another detection method is to receive the notification information sent by the wireless medical device, and when the notification information sent by the wireless medical device is received, then detect whether the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal.

Specifically, the wireless medical device may send notification information to the wireless communication device for notifying that the communication state between the wireless communication device itself and the wireless communication device is a preset poor communication state. After receiving the notification message, the wireless communication device can directly determine that the communication state between the two devices is poor, so as to detect whether the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal. The detection method can be Refer to the first detection method. This detection method can prevent the wireless communication device from periodically detecting whether the communication status is poor, thereby reducing the resource consumption of the wireless communication device.

Or in order to further reduce resource consumption, when the wireless communication device receives the notification information sent by the wireless medical device, it directly determines that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal.

Another detection method is to periodically detect whether the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal. Specifically, the wireless communication device detects whether the communication signal between itself and the wireless medical device is interfered according to a preset detection cycle, and the detection method can refer to the first detection method.

Regardless of any of the above detection methods, if the detection result is that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal, the bandwidth of the communication signal and the bandwidth of the interference signal need to be determined. For example, after a wireless communication device receives a digital signal, it performs frequency domain analysis on the data signal to determine the bandwidth of the interference signal.

S302: Calculate the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal.

Among them, in order to reduce the interference of the interference signal, the overlapping part of the communication signal and the interference signal can be narrowed. For example, the bandwidth of the communication signal can be subtracted from the entire bandwidth of the interference signal to obtain the target bandwidth of the communication signal. For another example, the bandwidth of the communication signal can be subtracted from the part of the bandwidth of the interference signal to obtain the target bandwidth of the communication signal. For another example, the bandwidth of the interference signal may be multiplied by a multiple value greater than 1, and the bandwidth of the communication signal may be subtracted from the above product value to obtain the target bandwidth of the communication signal.

As shown in FIG. 4A, the wireless communication device of the WMTS system detects the interference signal of the UHF system, and then subtracts the bandwidth of the interference signal from the default bandwidth of the communication channel to obtain the target bandwidth of the communication channel. The frequency spectrum of the communication signals of the two systems almost no longer overlap, thereby reducing the communication interference between the two.

S303: Set the channel bandwidth of the wireless communication device as the target bandwidth.

Wherein, by setting the channel bandwidth as the target bandwidth, the wireless communication device can transmit and/or receive communication signals according to the target bandwidth. As shown in Figure 4B, in a specific deployment diagram of a medical communication system, wireless communication equipment APs are distributed in locations near the ward and the nurse station, and can communicate with wireless medical equipment. Each wireless communication device AP is assigned to use a certain communication channel. Since communication channel 1 is a boundary communication channel, it will be interfered by other medical communication channels' adjacent frequency band communication signals, so the wireless communication device AP using communication channel 1 will reduce the channel bandwidth Shorten it to reduce interference from other medical communication systems.

It can be seen from the above technical solutions that when the medical communication system is interfered by other medical communication systems, the wireless communication device adjusts the bandwidth of its own communication channel according to the bandwidth of the interference signal to reduce or even eliminate the interference received by the wireless communication device. In addition, this solution does not need to adjust the network deployment status of wireless communication equipment, and does not require manual intervention to eliminate interference sources.

In addition to setting the channel bandwidth of the wireless communication device as the target bandwidth, the wireless communication device may also send setting information to the wireless medical device connected to the wireless communication device. The setting information is used to notify the wireless medical device to set the channel bandwidth as the target bandwidth. After the wireless medical device sets its own channel bandwidth as the target bandwidth, it can transmit and/or receive communication signals according to the target bandwidth, so as to reduce the interference of the interference signal on the communication signal of the wireless medical device.

The foregoing communication channel bandwidth setting method is executed in the communication process between the wireless communication device and the wireless medical device. Of course, the wireless communication device can also adjust the communication channel bandwidth in the communication gap with the wireless medical device. Specifically, see FIG. 5, which shows a flow of another embodiment of a method for setting a communication channel bandwidth applied to a wireless communication device, which specifically includes S501 to S504.

S501: In the communication gap between the wireless communication device and the wireless medical device, it is determined that an interference signal whose communication frequency band and the communication frequency band of the wireless communication device are at least partially non-overlapping is received.

Among them, the wireless communication device and the wireless medical device can communicate with each other, and a communication signal will be generated during the communication process. The wireless communication device can determine whether there is interference to the wireless communication device by detecting whether the communication signal is interfered. Of course, the wireless communication device can also scan for interference signals during the communication gap with the wireless medical device. The interference signal comes from other medical communication systems, and the communication frequency band of the interference signal and the communication frequency band of the wireless communication device may partially overlap or overlap.

S502: Obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal.

Among them, when it is determined that the interference signal is received, the communication signal and the bandwidth of the interference signal are determined.

S503: Calculate the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal;

S504: Set the channel bandwidth of the wireless communication device as the target bandwidth.

It should be noted that, for the description of steps S503 to S504 in this embodiment, reference may be made to the description of steps S302 to S303 in FIG. 3, which will not be repeated here. In addition, the wireless communication device may also send notification information to the wireless medical device to instruct the wireless medical device to set the channel bandwidth of the communication channel to the target bandwidth.

It can be seen from the above technical solutions that the wireless communication device in this embodiment can adjust the communication channel bandwidth in the communication gap, avoid the influence of the channel bandwidth adjustment on the communication signal during the communication process, and improve the stability of the communication signal.

The above communication channel bandwidth setting method is applied to wireless communication equipment. The wireless communication equipment can be connected to one or more wireless medical equipment. When the wireless communication equipment is connected to only one wireless medical equipment, this method can also be applied to wireless medical equipment. equipment. Specifically, when the wireless medical device determines that the communication signal between the wireless medical device and the wireless communication device is interfered by the interference signal, it obtains the bandwidth of the communication signal and determines the bandwidth of the interference signal; wherein the communication signal and the interference signal have at least a part of the communication frequency band different from the interference signal. Overlap; calculate the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal; set the channel bandwidth of the wireless medical device as the target bandwidth. Or, the wireless medical device sends notification information to the connected wireless communication device to instruct the wireless communication device to set the channel bandwidth as the target bandwidth.

Another situation encountered in practical applications is that wireless spectrum resources are very precious. It may be necessary to compress the communication channel bandwidth used by the medical communication system for reasons such as the need to share spectrum resources. In this way, for the medical communication system, the number of channels that can be used by wireless communication devices is reduced, the distance between wireless communication devices using the same channel will be reduced, co-channel interference will increase, and the coverage of communication signals will also be increased. Deterioration, the communication quality of wireless medical equipment in weak network coverage areas will deteriorate or even drop, which will have a greater impact on scenarios that require real-time monitoring.

See Figure 6, which shows a layout scenario of a wireless communication device AP in a medical communication system. Due to the adjustment of the communication channel bandwidth, the number of communication channels is changed from 4 to 2, and the communication channel used by the wireless communication device AP will also be With corresponding adjustments, the distance between APs of wireless communication devices with the same communication channel will be shortened after adjustment. For example, the distance between two APs of wireless communication devices using communication channel 1 will be shortened from 45 meters to 15 meters, and the same frequency interference will increase. The system works in the 1.4GHz frequency band, and the typical value of communication loss caused by co-frequency interference is 60dB, which has a greater impact on the quality of the communication signal of the wireless communication device AP.

This application provides a communication channel bandwidth setting method, which is applied to medical communication system management equipment. The medical communication system management equipment can be connected to one or more wireless communication devices for unified management of this wireless communication device, such as configuring wireless Network parameters of communication equipment, etc. As shown in Fig. 7, the communication channel bandwidth setting method specifically includes steps S701 to S705.

S701: Obtain the total channel bandwidth that the medical communication system needs to set to.

The medical communication system management device can obtain the total channel bandwidth input by the user, the total channel bandwidth is the total channel bandwidth that the medical communication system needs to set to, and the total channel bandwidth is smaller than the current total channel bandwidth of the medical communication system. It is understandable that the total channel bandwidth that needs to be set to is the total channel bandwidth after adjustment, and the current total channel bandwidth is the total channel bandwidth before adjustment.

S702: According to the total channel bandwidth, determine the target channel bandwidth that the wireless communication device needs to set to.

Among them, the medical communication system includes one or more wireless communication devices, and it is necessary to determine the channel bandwidth to which each wireless communication device needs to be adjusted. For ease of description, the channel bandwidth that needs to be adjusted is called the target channel bandwidth. One way to determine is to assign different target channel bandwidths to each wireless communication device, and the target channel bandwidths may or may not overlap; the other way to determine is to assign the same target to each wireless communication device. Channel bandwidth, and each target channel bandwidth does not overlap. Specifically, the total channel bandwidth is divided by the number of wireless communication devices to obtain the target channel bandwidth that each wireless communication device needs to be set to.

S703: Based on the target channel bandwidth that the wireless communication device needs to set to, determine the first maximum number of wireless medical devices that the wireless communication device can connect to.

Wherein, after the target channel bandwidth of the wireless communication device is determined, the wireless communication device can determine the maximum number of wireless medical devices that can be connected under the bandwidth according to the bandwidth occupied by the communication with the wireless medical device. In an embodiment, the medical communication system calculates the data volume of each monitoring device based on the monitoring information, and considering other interactive information overhead, it can calculate the approximate maximum data volume required by each wireless medical device. The wireless communication device calculates the maximum number of wireless medical devices that can be carried based on the total data volume corresponding to the total channel bandwidth and the maximum data volume required by each wireless medical device. For ease of description, the maximum number may be referred to as the first maximum number. It can be understood that the first maximum number is the maximum number of wireless medical devices that can be connected to the wireless communication device after the total channel bandwidth is adjusted. However, the maximum number may exceed the maximum number of wireless medical devices that the wireless communication device can connect to before the total channel bandwidth is adjusted. If it exceeds, the deployment strategy of the wireless communication device needs to be adjusted, and step S704 needs to be performed to determine the total channel bandwidth before adjustment. The maximum number is called the second maximum number.

S704: Determine the second maximum number of wireless medical devices that the wireless communication device can connect to under the current channel bandwidth.

Among them, the wireless communication device determines the maximum number of wireless medical devices that can be connected under the current channel bandwidth according to the bandwidth occupied by the communication with the wireless medical device. It should be noted that the maximum number is the maximum number of wireless medical devices that can be connected to the wireless communication device, not the number of wireless medical devices actually connected to the wireless communication device.

S705: When the first maximum number is less than or equal to the second maximum number, set the channel bandwidth of the wireless communication device as the target channel bandwidth.

Wherein, the first maximum number is compared with the second maximum number, and if the first maximum number does not exceed the second maximum number, it means that the target channel bandwidth set for the wireless communication device is appropriate, so that the target channel bandwidth is sent to the wireless communication device , So that the wireless communication device sets the channel bandwidth to the target channel bandwidth. See Figure 8, still taking the wireless communication device AP layout scenario shown in Figure 6 as an example. After the total channel bandwidth is shortened, the wireless communication device AP’s layout strategy remains unchanged, but in order to avoid co-channel interference, the wireless communication device AP adjusts its own Channel bandwidth, after comparison, it can be seen that the adjusted channel bandwidth becomes narrower.

It can be seen from the above technical solutions that in this embodiment, the channel bandwidth of the wireless communication device can be adjusted according to the total channel bandwidth and the number of wireless communication devices, and the adjusted channel bandwidth capacity meets the connection requirements of the wireless medical device. In addition, this embodiment does not need to adjust the layout strategy of wireless communication devices, which saves network deployment costs.

Of course, if the first maximum number exceeds the second maximum number, the number of wireless communication devices in the medical communication system needs to be increased to meet the connection requirements of more wireless medical devices. The specific number of additions is set according to actual communication requirements, and this application does not make specific limitations.

In order to ensure the application and implementation of the above method in practice, this application also provides wireless communication equipment, wireless medical equipment, and medical communication system management equipment.

See Figure 9, which shows a schematic structural diagram of a wireless communication device. The wireless communication device is connected to at least one wireless medical device. As shown in FIG. 9, the wireless communication device specifically includes: an antenna, a radio frequency circuit, a processor, a power supply module, and a baseband controller.

Wherein, the antenna is connected to the radio frequency circuit. In an embodiment, the antenna and the radio frequency circuit can be considered as a communication module, and the communication module is used to communicate with wireless medical equipment and/or receive interference signals.

The processor is respectively connected with the power module, the radio frequency circuit, and the baseband controller.

The processor is used to obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal when it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal; wherein at least part of the communication frequency bands of the communication signal and the interference signal do not overlap; Based on the bandwidth of the communication signal and the bandwidth of the interference signal, calculate the target bandwidth of the communication signal; send a setting instruction to the baseband controller, and the setting instruction carries the target bandwidth.

The processor can also be used to set the relevant parameters of the baseband controller and the radio frequency circuit.

The baseband controller may be a baseband chip, which can set the channel bandwidth. Specifically, after receiving the setting instruction, the baseband controller sets the channel bandwidth as the target bandwidth.

It should be noted that, in the wireless communication device, the baseband controller, antenna, and radio frequency circuit may be one group or multiple groups.

In a specific implementation, the processor is also used to generate setting information and send the setting information to the communication module; wherein the setting information is used to notify the wireless medical device to set the channel bandwidth as the target bandwidth; the communication module is also used to send the wireless The medical device sends setting information.

In a specific implementation, when the processor determines that the communication signal between the wireless communication device and the wireless medical device is interfered, it is specifically used to: determine the interference power of the interference signal received by the wireless communication device; When the interference power threshold is set, it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered.

In a specific implementation, when the processor calculates the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal, it is specifically used to: subtract the bandwidth of the communication signal from the bandwidth of the interference signal to obtain the communication signal's bandwidth. Target bandwidth.

In a specific implementation manner, when the processor determines that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal, it is specifically used to: determine that the communication channel of the wireless communication device is the boundary communication in the communication frequency band where it is located. Channel and the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal.

In a specific implementation manner, when the processor determines that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal, it is specifically configured to: determine that the communication state between the wireless communication device and the wireless medical device is a predetermined It is assumed that the communication state is not good and the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal.

In a specific implementation, the communication module is also used to receive notification information sent by the wireless medical device, and send the notification information to the processor, where the notification information is used to indicate that the communication status between the wireless medical device and the wireless communication device is Preset a poor communication state; when the processor determines that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal, it is specifically used to: if the notification information sent by the wireless medical device is received, determine the wireless communication The communication signal between the device and the wireless medical device is interfered by interference signals.

In a specific implementation manner, when the processor determines that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal, it is specifically used to: periodically detect the communication signal between the wireless communication device and the wireless medical device , It is determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal.

In order to adjust the channel bandwidth in the communication gap, this application provides a wireless communication device. The communication device specifically includes: a communication module, a processor, and a baseband controller.

The processor is configured to detect, in the communication gap between the wireless communication device and the wireless medical device, an interference signal with a communication frequency band that is at least partially different from the communication frequency band of the wireless communication device, obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal; The bandwidth of the communication signal and the bandwidth of the interference signal, calculate the target bandwidth of the communication signal; send a setting instruction to the baseband controller, and the setting instruction carries the target bandwidth;

The baseband controller is used to set the channel bandwidth to the target bandwidth after receiving the setting instruction.

It can be seen from the above technical solutions that when the wireless communication device is interfered by other medical communication systems, the wireless communication device adjusts the bandwidth of its own communication channel according to the bandwidth of the interference signal to reduce or even eliminate the interference received by the wireless communication device. In addition, this solution does not need to adjust the network deployment status of wireless communication equipment, and does not require manual intervention to eliminate interference sources.

The application also provides a wireless medical device, which is connected to a wireless communication device. The wireless medical equipment specifically includes: a communication module, a processor, and a baseband controller.

The communication module is used to communicate with wireless communication equipment and/or receive interference signals;

The processor is used to determine that the communication signal between the wireless medical device and the wireless communication device is interfered by the interference signal, obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal; wherein at least part of the communication frequency bands of the communication signal and the interference signal do not overlap ; Calculate the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal; send a setting instruction to the baseband controller, and the setting instruction carries the target bandwidth;

In order to solve the same frequency interference caused by compressing the communication channel bandwidth of the medical communication system, the present application provides a medical communication system management device, which includes a processor and a communication module.

The processor is used to obtain the total channel bandwidth that the medical communication system needs to be set to, where the medical communication system includes several wireless communication devices; according to the total channel bandwidth, determine the target channel bandwidth that the wireless communication device needs to be set to; based on the wireless communication device needs to be set For the target channel bandwidth, determine the first maximum number of wireless medical devices that the wireless communication device can connect to; determine the second maximum number of wireless medical devices that the wireless communication device can connect to under the current channel bandwidth; if the first maximum number does not exceed The second maximum number is to send a setting instruction to the communication module, and the setting instruction carries the target channel bandwidth;

The communication module is used to send a setting instruction to the wireless communication device, and the setting instruction is used to instruct the wireless communication device to set the channel bandwidth as the target channel bandwidth.

In a specific implementation, when the processor determines the target channel bandwidth that the wireless communication device needs to be set to according to the total channel bandwidth, it is specifically used to: divide the total channel bandwidth by the number of wireless communication devices to obtain each wireless communication device. The target channel bandwidth that the communication device needs to be set to.

In a specific implementation manner, the processor is further configured to increase the number of wireless communication devices in the medical communication system if the first maximum number exceeds the second maximum number.

The present application also provides a readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the communication channel bandwidth setting method of any one of the above is implemented.

It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts between the various embodiments, refer to each other. can.

It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations. There is any such actual relationship or order between. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes those that are not explicitly listed Other elements of, or also include elements inherent to this process, method, article or equipment. Without more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article or equipment including the above elements.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims

A wireless communication device connected to at least one wireless medical device, characterized in that it comprises:

The communication module is used to communicate with the wireless medical device and/or receive interference signals;

The processor is configured to obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal when it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal; wherein the communication The signal and the interference signal do not overlap at least part of the communication frequency band; based on the bandwidth of the communication signal and the bandwidth of the interference signal, calculate the target bandwidth of the communication signal; send a setting instruction to the baseband controller, and the setting instruction carries all The target bandwidth;

The baseband controller is configured to set the channel bandwidth to the target bandwidth after receiving the setting instruction.
The wireless communication device according to claim 1, wherein:

The processor is further configured to generate setting information and send the setting information to the communication module; wherein the setting information is used to notify the wireless medical device to set the channel bandwidth as the target bandwidth;

The communication module is also used to send setting information to the wireless medical device.
The wireless communication device according to claim 1, wherein the processor is specifically configured to: when determining that a communication signal between the wireless communication device and the wireless medical device is interfered:

Determine the interference power of the interference signal received by the wireless communication device;

When detecting that the interference power reaches a preset interference power threshold, it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered.
The wireless communication device according to claim 1, wherein the processor is specifically configured to: when calculating the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal:

The bandwidth of the interference signal is subtracted from the bandwidth of the communication signal to obtain the target bandwidth of the communication signal.
The wireless communication device according to claim 1, wherein the processor is specifically configured to: when determining that the communication signal between the wireless communication device and the wireless medical device is interfered by an interference signal:

It is determined that the communication channel of the wireless communication device is a boundary communication channel in the communication frequency band where it is located, and the communication signal between the wireless communication device and the wireless medical device is interfered by interference signals.
The wireless communication device according to claim 1, wherein the processor is specifically configured to: when determining that the communication signal between the wireless communication device and the wireless medical device is interfered by an interference signal:

It is determined that the communication state between the wireless communication device and the wireless medical device is a preset poor communication state and the communication signal between the wireless communication device and the wireless medical device is interfered by an interference signal.
The wireless communication device according to claim 1, wherein:

The communication module is further configured to receive notification information sent by the wireless medical device, and send the notification information to the processor, where the notification information is used to indicate the communication between the wireless medical device and the wireless communication device The communication status is the preset poor communication status;

When determining that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal, the processor is specifically configured to:

If the notification information sent by the wireless medical device is received, it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal.
The wireless communication device according to claim 1, wherein the processor is specifically configured to: when determining that the communication signal between the wireless communication device and the wireless medical device is interfered by an interference signal:

Periodically detect the communication signal between the wireless communication device and the wireless medical device, and determine that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal.
A wireless communication device connected to at least one wireless medical device, characterized in that it comprises:

The communication module is used to communicate with wireless medical equipment and/or receive interference signals;

The processor is configured to detect, in the communication gap between the wireless communication device and the wireless medical device, that an interference signal having a communication frequency band that is at least partially different from the communication frequency band of the wireless communication device is received, to obtain the bandwidth of the communication signal, and to determine The bandwidth of the interference signal; calculate the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal; send a setting instruction to the baseband controller, the setting instruction carrying the target bandwidth;

The baseband controller is configured to set the channel bandwidth to the target bandwidth after receiving the setting instruction.
A wireless medical device, which is connected to a wireless communication device, characterized in that it includes:

The communication module is used to communicate with the wireless communication device and/or receive interference signals;

A processor, configured to determine that the communication signal between the wireless medical device and the wireless communication device is interfered by the interference signal, obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal; wherein the communication signal At least part of the communication frequency band does not overlap with the interference signal; calculate the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal; send a setting instruction to the baseband controller, and the setting instruction carries the Target bandwidth

The baseband controller is configured to set the channel bandwidth to the target bandwidth after receiving the setting instruction.
A medical communication system management equipment, which is characterized in that it comprises:

A processor, configured to obtain the total channel bandwidth that the medical communication system needs to set to, where the medical communication system includes a number of wireless communication devices; determine the target channel bandwidth that the wireless communication device needs to set to, according to the total channel bandwidth; Based on the target channel bandwidth that the wireless communication device needs to be set to, determine the first maximum number of wireless medical devices that the wireless communication device can connect to; determine the number of wireless medical devices that the wireless communication device can connect to under the current channel bandwidth A second maximum number; if the first maximum number does not exceed the second maximum number, send a setting instruction to the communication module, the setting instruction carrying the target channel bandwidth;

The communication module is configured to send the setting instruction to the wireless communication device, where the setting instruction is used to instruct the wireless communication device to set the channel bandwidth to the target channel bandwidth.
The medical communication system management device according to claim 11, wherein the processor is specifically configured to: when determining the target channel bandwidth that the wireless communication device needs to be set to according to the total channel bandwidth:

Divide the total channel bandwidth by the number of wireless communication devices to obtain the target channel bandwidth that each wireless communication device needs to be set to.
The medical communication system management device according to claim 11, wherein:

The processor is further configured to increase the number of wireless communication devices in the medical communication system if the first maximum number exceeds the second maximum number.
A method for setting the bandwidth of a communication channel is characterized in that it is applied to a wireless communication device, and the wireless communication device is connected to at least one wireless medical device. The method includes:

When it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal, obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal; wherein the communication signal and the interference signal are at least Some communication frequency bands do not overlap;

Calculating the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal;

The channel bandwidth of the wireless communication device is set to the target bandwidth.
The communication channel bandwidth setting method according to claim 14, further comprising:

Sending setting information to the wireless medical device, where the setting information is used to notify the wireless medical device to set the channel bandwidth to the target bandwidth.
The communication channel bandwidth setting method of claim 14, wherein determining that the communication signal between the wireless communication device and the wireless medical device is interfered comprises:

Determine the interference power of the interference signal received by the wireless communication device;

When the interference power reaches a preset interference power threshold, it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered.
The communication channel bandwidth setting method according to claim 14, wherein calculating the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal comprises:

The bandwidth of the interference signal is subtracted from the bandwidth of the communication signal to obtain the target bandwidth of the communication signal.
The communication channel bandwidth setting method of claim 14, wherein determining that the communication signal between the wireless communication device and the wireless medical device is interfered by an interference signal comprises:

It is determined that the communication channel of the wireless communication device is a boundary communication channel in the communication frequency band where it is located, and the communication signal between the wireless communication device and the wireless medical device is interfered by interference signals.
The communication channel bandwidth setting method of claim 14, wherein determining that the communication signal between the wireless communication device and the wireless medical device is interfered by an interference signal comprises:

Obtaining the communication status between the wireless communication device and the wireless medical device;

When the communication state is a preset poor communication state, it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal.
The communication channel bandwidth setting method of claim 14, wherein determining that the communication signal between the wireless communication device and the wireless medical device is interfered by an interference signal comprises:

When the notification information sent by the wireless medical device is received, it is determined that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal; wherein the notification information is used to indicate that the wireless medical device and the wireless medical device are The communication state between the wireless communication devices is a preset poor communication state.
The communication channel bandwidth setting method of claim 14, wherein determining that the communication signal between the wireless communication device and the wireless medical device is interfered by an interference signal comprises:

Periodically detect the communication signal between the wireless communication device and the wireless medical device, and determine that the communication signal between the wireless communication device and the wireless medical device is interfered by the interference signal.
A method for setting the bandwidth of a communication channel is characterized in that it is applied to a wireless communication device, and the wireless communication device is connected to at least one wireless medical device. The method includes:

In the communication gap between the wireless communication device and the wireless medical device, it is determined that an interference signal whose communication frequency band and the communication frequency band of the wireless communication device are at least partially non-overlapping is received;

Obtaining the bandwidth of the communication signal and determining the bandwidth of the interference signal;

Calculating the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal;

The channel bandwidth of the wireless communication device is set to the target bandwidth.
A method for setting communication channel bandwidth is characterized in that it is applied to wireless medical equipment, and the method includes:

When it is determined that the communication signal between the wireless medical device and the wireless communication device is interfered by the interference signal, obtain the bandwidth of the communication signal and determine the bandwidth of the interference signal; wherein the communication signal and the interference signal are at least Some communication frequency bands do not overlap;

Calculating the target bandwidth of the communication signal based on the bandwidth of the communication signal and the bandwidth of the interference signal;

The channel bandwidth of the wireless medical device and/or the wireless communication device is set as the target bandwidth.
A method for setting communication channel bandwidth, characterized in that it is applied to a medical communication system management device, and the method includes:

Obtain the total channel bandwidth that the medical communication system needs to be set to, where the medical communication system includes several wireless communication devices;

Determine the target channel bandwidth that the wireless communication device needs to set to according to the total channel bandwidth;

Determine the first maximum number of wireless medical devices that the wireless communication device can connect to based on the target channel bandwidth that the wireless communication device needs to be set to;

Determining the second maximum number of wireless medical devices that the wireless communication device can connect to under the current channel bandwidth;

When the first maximum number is less than or equal to the second maximum number, the channel bandwidth of the wireless communication device is set as the target channel bandwidth.
The communication channel bandwidth setting method according to claim 24, wherein the determining the target channel bandwidth to be set to by the wireless communication device according to the total channel bandwidth comprises:

Divide the total channel bandwidth by the number of wireless communication devices to obtain the target channel bandwidth that each wireless communication device needs to be set to.
The communication channel bandwidth setting method according to claim 24, further comprising:

When the first maximum number exceeds the second maximum number, the number of wireless communication devices in the medical communication system is increased.
A readable storage medium with a computer program stored thereon, wherein the computer program implements the communication channel bandwidth setting method according to any one of claims 14 to 26 when the computer program is executed by a processor.