Wireless communication system and wireless communication device

Abstract

To provide a technique that enables efficient continuous transmission of data sequences with different priorities when wireless communication is performed by a frequency hopping method.SOLUTION: A wireless communication device includes: a resource allocation unit 107 that performs resource allocation of selecting a frequency channel with good transmission quality based on the transmission quality of each frequency channel, and preferentially allocating a time slot in a frequency hopping pattern corresponding to the selected frequency channel as a time slot used for transmission of a data sequence; and a control unit 104 that controls the transmission of the data sequence using the time slot allocated by the resource allocation unit 107 and the frequency channel. When a plurality of data sequences are continuously transmitted, the resource allocation unit 107 allocates resources according to a priority set for each data sequence.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to wireless communication System and wireless communication device This is regarding. [Background technology]

[0002] Conventionally, the following method has been disclosed as a method of allocating resources when performing wireless communication using a frequency hopping method.

[0003] Patent Document 1 discloses a method of allocating resources in such a way that, based on the transmission quality of each frequency channel, a frequency channel with good transmission quality is selected, and a time slot in a frequency hopping pattern corresponding to the selected frequency channel is preferentially allocated as a time slot to be used for transmitting a data sequence, and when multiple data sequences are transmitted continuously, the resource allocation is performed so as to minimize the transmission error rate of the data sequence with the highest expected transmission error rate. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2019 / 229952 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the method described in Patent Document 1, the priority of a data sequence is not taken into consideration when multiple data sequences are transmitted in succession, so resources are allocated regardless of the priority of the data sequence, and resources are not preferentially allocated to a data sequence with a high priority. As a result, there is a problem that data sequences with different priorities cannot be transmitted in succession efficiently.

[0006] Therefore, an object of the present disclosure is to provide a technique that enables efficient continuous transmission of data sequences with different priorities when performing wireless communication using frequency hopping. [Means for solving the problem]

[0007] Wireless communication according to the present disclosure system teeth, A wireless communication system that is configured with a wireless device master station and a wireless device slave station and is capable of continuously transmitting a plurality of data series between the wireless device master station and the wireless device slave station, the wireless device master station comprising: Based on the transmission quality of each frequency channel, a frequency channel having a good transmission quality is selected, and a time slot in a frequency hopping pattern corresponding to the selected frequency channel is set as a time slot in the frequency hopping pattern. The above a resource allocation unit that performs resource allocation for preferentially allocating time slots to be used for transmitting a data sequence; and a control unit that performs control for transmitting the data sequence using the time slots and the frequency channels allocated by the resource allocation unit. 、 When a plurality of the data series are continuously transmitted, the resource allocation unit A set for each type of device that communicates with the wireless device slave station The resource allocation is carried out according to the priority. Effect of the Invention

[0008] According to the present disclosure, when performing wireless communication using frequency hopping, it is possible to efficiently transmit data sequences having different priorities in succession. [Brief description of the drawings]

[0009] [Figure 1] 1 is a configuration diagram of a wireless communication system according to a first embodiment. [Diagram 2] 1 is a block diagram of a wireless device master station included in a wireless communication system according to a first embodiment. [Diagram 3] 2 is a block diagram of a wireless device slave station included in the wireless communication system according to the first embodiment. [Figure 4] 4 is a diagram showing a configuration of a frame used when wireless communication is performed between a wireless device master station and a wireless device slave station in the first embodiment. [Diagram 5]4 is a diagram showing the relationship between frequency channels used by each wireless device master station and slots of each frame in the first embodiment. FIG. [Figure 6] 4 is a diagram showing resources used when wireless communication is performed between each wireless device master station and its subordinate wireless device slave stations in the first embodiment. FIG. [Figure 7] FIG. 11 is a diagram showing resource allocation in a case where, among resources used in the first embodiment, one slot is generated from each wireless device slave station and a data sequence for two slots is generated per frame. [Figure 8] 5 is a diagram showing the priority of data sequences of wireless device slave stations under a wireless device master station in the first embodiment. FIG. [Figure 9] 5 is a diagram showing evaluation values ​​of transmission quality between a wireless device master station and subordinate wireless device slave stations in the first embodiment. FIG. [Figure 10] FIG. 4 is a diagram showing resource allocation in the first embodiment. [Figure 11] FIG. 11 is a configuration diagram of a wireless communication system according to a second embodiment. [Figure 12] 11 is a block diagram of a wireless device slave station included in a wireless communication system according to a second embodiment. FIG. [Figure 13] 2 is a diagram showing an example of a configuration of a processing circuit included in a wireless device master station and a wireless device slave station in the first and second embodiments. FIG. [Figure 14] 13 is a diagram illustrating another example of the configuration of the processing circuit included in the wireless device master station and the wireless device slave station in the first and second embodiments. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] <Embodiment 1> The first embodiment will be described below with reference to the drawings. Fig. 1 is a configuration diagram of a wireless communication system according to the first embodiment.

[0011] As shown in FIG. 1, the wireless communication system includes wireless device parent stations 1A, 1B, and 1C, wireless device child stations 2A and 2B, a sensor 3, a camera 4, a sensor monitoring and control device 5, a video receiving device 6, a radio wave environment monitoring device 7, and a wired network 8.

[0012] The wireless device master station 1A is a wireless communication device installed to realize wireless communication with the wireless device slave stations 2A and 2B. When the wireless device slave stations 2A and 2B are not distinguished from each other, they may be referred to as wireless device slave stations 2. The wireless device master stations 1B and 1C are wireless device master stations installed in a different location from the wireless device master station 1A. When the wireless device master stations 1A, 1B, and 1C are not distinguished from each other, they may be referred to as wireless device master station 1. The wireless device master station 1 includes an antenna 101 shown in FIG. 1. The wireless device slave station 2 includes an antenna 201 shown in FIG. 1.

[0013] The sensor 3 is connected to a wired network 8 via wireless communication between the wireless device slave station 2 and the wireless device master station 1. The sensor 3 communicates monitoring data detected by the sensor 3 and control data transmitted from the sensor monitoring control device 5 with a sensor monitoring control device 5 that is connected to the wired network 8.

[0014] The camera 4 is connected to a wired network 8 via wireless communication between the wireless device slave station 2 and the wireless device master station 1. The camera 4 communicates video data captured by the camera 4 with a video receiving device 6 that is also connected to the wired network 8.

[0015] The radio wave environment monitoring device 7 collects the radio wave environment, that is, the transmission quality, measured between the wireless device master station 1 and the wireless device slave station 2, and stores the collected information in a database.

[0016] The wireless device master station 1 and the wireless device slave station 2 perform wireless communication using a frequency hopping method in which the frequency channel used is switched for each time slot. In the following description, the time slot may be simply referred to as a slot. In FIG. 1, the wireless device slave station 2 is shown only under the wireless device master station 1A, but it may also be installed under the wireless device master stations 1B and 1C.

[0017] Next, a description will be given of the configuration of the wireless device master station 1. Fig. 2 is a block diagram of the wireless device master station 1 included in the wireless communication system according to the first embodiment.

[0018] As shown in FIG. 2, the wireless device master station 1 includes an antenna 101, an RF (Radio Frequency) unit 102, a modulation / demodulation unit 103, a control unit 104, a transmission quality measurement unit 105, a transmission quality holding unit 106, a resource allocation unit 107, and a priority holding unit 108.

[0019] The antenna 101 radiates a radio signal into the air during transmission and receives the radio signal propagated through the air. The RF unit 102 converts a digitally modulated signal into an analog signal during transmission, frequency-converts it to a carrier frequency and outputs it to the antenna 101, and frequency-converts it to a baseband received by the antenna 101 during reception, converting it into a digital signal. The modulation / demodulation unit 103 performs coding and modulation processing on the data sequence during transmission, and performs demodulation and decoding processing on the received signal during reception. When transmitting a data sequence, the control unit 104 controls the transmission of the data sequence using resources allocated by the resource allocation unit 107, i.e., slots and frequency channels.

[0020] The transmission quality measurement unit 105 measures radio waves in the frequency band used by the wireless device master station 1, and performs transmission quality evaluation of the wireless device master station 1 based on the signal power value of the desired wave and the interference power value of jamming waves and the like. The transmission quality storage unit 106 stores transmission quality information such as the power value measured by the transmission quality measurement unit 105 and the data series collected by the radio wave environment monitoring device 7. The resource allocation unit 107 allocates resources to the data series to be transmitted based on a resource request from the control unit 104 and the transmission quality information for each frequency channel stored by the transmission quality storage unit 106. Details of resource allocation in the resource allocation unit 107 will be described later.

[0021] Next, a description will be given of the configuration of the wireless device slave station 2. Fig. 3 is a block diagram of the wireless device slave station 2 included in the wireless communication system according to the first embodiment.

[0022] As shown in Fig. 3, the wireless device slave station 2 includes an antenna 201, an RF unit 202, a modulation / demodulation unit 203, a control unit 204, and a transmission quality measurement unit 205. The antenna 201, the RF unit 202, the modulation / demodulation unit 203, the control unit 204, and the transmission quality measurement unit 205 are configured similarly to the antenna 101, the RF unit 102, the modulation / demodulation unit 103, the control unit 104, and the transmission quality measurement unit 105 included in the wireless device master station 1, respectively. The control unit 204 generates a data sequence based on data from the sensor 3 or the camera 4 during transmission and outputs the data sequence to the modulation / demodulation unit 203, and controls the output of the demodulated data output from the modulation / demodulation unit 203 to the sensor 3 or the camera 4 during reception. The measurement result of the transmission quality measurement unit 205 is used when the resource allocation unit 107 allocates resources together with the measurement result of the transmission quality measurement unit 105 of the wireless device master station 1.

[0023] Next, a description will be given of a frame configuration used when performing wireless communication between the wireless device master station 1 and the wireless device slave station 2. Fig. 4 is a diagram showing a frame configuration used when performing wireless communication between the wireless device master station 1 and the wireless device slave station 2 in the first embodiment.

[0024] As shown in Fig. 4, each frame is composed of slots of a fixed time length. The first slot of the frame is a slot in which broadcast information is stored. The broadcast information includes information to be transmitted from the wireless device master station 1 to all wireless device slave stations 2 within the cell. The information to be transmitted includes, for example, information required to generate a hopping pattern of the frame, a frame number, a cell number, and slot allocation information.

[0025] In the frame shown in Fig. 4, slots for transmitting information from the wireless device master station 1 to each wireless device slave station 2 in the cell are arranged in a number equal to the number of wireless device slave stations 2 connectable to the wireless device master station 1. In the frame shown in Fig. 4, after the slots for transmitting information from the wireless device master station 1 to the wireless device slave stations 2, slots for transmitting information from each wireless device slave station 2 to the wireless device master station 1 are arranged in a number equal to the number of wireless device slave stations 2 connectable to the wireless device master station 1.

[0026] Next, a frequency channel switching control when transmitting the frame shown in Fig. 4 between the wireless device master station 1 and the wireless device slave station 2 will be described. Fig. 5 is a diagram showing the relationship between the frequency channel used by each wireless device master station 1 and the slot of each frame in the first embodiment. In Fig. 5, the vertical axis indicates the frequency channel. As an example in Fig. 5, the number of frequency channels is 3, and the number of slots in the frame is 5. In Fig. 5, for ease of explanation, the slots of the broadcast information shown in Fig. 4 are omitted, and the wireless communication directions of the wireless device master station 1 and the wireless device slave station 2 are not distinguished. In Fig. 5, A, B, and C indicate frequency channels corresponding to the wireless device master stations 1A, 1B, and 1C, respectively.

[0027] In this embodiment, the wireless communication system employs a frequency hopping method, and the wireless device master stations 1A, 1B, and 1C change the frequency channel to be used for each slot. As shown in Fig. 5, the frequency channels used by each wireless device master station 1 are arranged to be different in the same slot, thereby preventing interference between the cells of each wireless device master station 1. Therefore, if a certain wireless device master station 1 uses a frequency channel different from the frequency channel based on a predetermined hopping pattern because the transmission quality of a specific frequency channel is poor, there is a possibility that it will interfere with the cells of other wireless device master stations 1 and deteriorate the transmission quality.

[0028] Fig. 6 is a diagram showing resources used when performing wireless communication between each wireless device master station 1 and its subordinate wireless device slave station 2 in the first embodiment. The resources used by the wireless device master station 1A shown in Fig. 6 are obtained by extracting the resources used by the wireless device master station 1A from the resources used by the wireless device master stations 1A, 1B, and 1C shown in Fig. 5. As shown in Fig. 6, the wireless device master station 1 and its subordinate wireless device slave station 2 use only resources marked with A to perform resource allocation for a data sequence to be transmitted.

[0029] 7 is a diagram showing resource allocation in the case where one slot of the resources used in the first embodiment is generated from each wireless device slave station 2 and two slots of data sequence are generated per frame. In the wireless device master station 1A, the resource allocation unit 107 performs resource allocation on a frame-by-frame basis. Fig. 7 shows a simple allocation example in which the resource allocation unit 107 allocates data sequences (1), (3), and (5) from the wireless device slave station 2A under the wireless device master station 1A and data sequences (2), (4), and (6) from the wireless device slave station 2B from the first slot of each frame.

[0030] Next, details of resource allocation in the resource allocation unit 107 will be described. As shown in Fig. 2, the resource allocation unit 107 changes the resources to be used according to the transmission quality based on the radio wave environment and the priority set for each data sequence. The transmission quality measurement unit 105 of the wireless device master station 1 constantly measures the radio wave environment during operation. The transmission quality measurement unit 105 measures the power of a received desired signal as a signal power value, and measures the power of a received radio wave during a period when no communication is being performed as an interference power value.

[0031] 1 and 2, the wireless device master station 1 transmits the measurement data of the transmission quality measurement unit 105 to the radio wave environment monitoring device 7 via the wired network 8, and the data is collected in the radio wave environment monitoring device 7. The radio wave environment monitoring device 7 averages the measurement data to evaluate the transmission quality. The radio wave environment monitoring device 7 calculates a signal power to interference power ratio for each wireless device master station 1, each frequency channel, and each subordinate wireless device slave station 2, for example, and classifies the wireless device slave stations according to the signal power to interference power ratio value. In addition, the control unit 104 sets a priority of the data series for each subordinate wireless device slave station 2 of the wireless device master station 1, and holds the priority in the priority holding unit 108.

[0032] Fig. 8 is a diagram showing the priority of data sequences of wireless device slave stations 2A and 2B under the wireless device master station 1A in the embodiment 1. The priority shown in Fig. 8 shows an example in which the priority is classified into two levels, 0 and 1, for each wireless device slave station 2. In Fig. 8, 2A and 2B respectively denote the wireless device slave stations 2A and 2B.

[0033] 8, priority 1 is a high priority, and priority 0 is a low priority. That is, priority 1 is a higher priority than priority 0. This is because the data series related to monitoring and control, such as the monitoring data detected by the sensor 3 and the control data transmitted from the sensor monitoring control device 5, are high-priority data series in which data loss is not permitted, and the data series related to video, such as the video data captured by the camera 4, are low-priority data series in which data loss is permitted. As a result, the data series of the wireless device slave station 2A is set to a high priority, and the data series of the wireless device slave station 2B is set to a low priority.

[0034] Fig. 9 is a diagram showing evaluation values ​​of transmission quality between wireless device master station 1A and subordinate wireless device slave stations 2A and 2B in embodiment 1. In Fig. 9, 2A and 2B respectively denote wireless device slave stations 2A and 2B. In Fig. 9, evaluation value 1 indicates less interference and good transmission quality, and evaluation value 0 indicates more interference and poor transmission quality.

[0035] The radio wave environment monitoring device 7 transmits the calculated evaluation value of the transmission quality to the wireless device master station 1 at regular intervals. In the wireless device master station 1, the transmission quality holding unit 106 holds the evaluation value of the transmission quality transmitted from the radio wave environment monitoring device 7. When allocating resources, the resource allocation unit 107 refers to the evaluation value of the transmission quality held in the transmission quality holding unit 106 and the priority set for each data sequence held in the priority holding unit 108, i.e., the priority of the data sequence set for each wireless device slave station 2.

[0036] Fig. 10 is a diagram showing resource allocation in the embodiment 1. In Fig. 10, resources are preferentially allocated to channel 2 with good transmission quality for data series (1), (3), and (5) of wireless device local station 2A with high priority, and resources are allocated to channel 0 or 1 with poor transmission quality for data series (2), (4), and (6) of wireless device local station 2B with low priority.

[0037] As described above, in the first embodiment, the wireless communication device includes a resource allocation unit 107 that performs resource allocation by selecting a frequency channel with good transmission quality based on the transmission quality of each frequency channel and preferentially allocating a time slot in a frequency hopping pattern corresponding to the selected frequency channel as a time slot to be used for transmitting a data sequence, and a control unit 104 that controls transmission of the data sequence using the time slot and frequency channel allocated by the resource allocation unit 107. When multiple data sequences are transmitted continuously, the resource allocation unit 107 allocates resources according to the priority set for each data sequence.

[0038] Therefore, when performing wireless communication using the frequency hopping method, it is possible to efficiently transmit successive data sequences having different priorities.

[0039] In addition, the wireless communication device is a wireless communication system formed together with a plurality of wireless device sub-stations 2, and is a wireless device master station 1 capable of transmitting a plurality of data series successively between the plurality of wireless device sub-stations 2, and the wireless device master station 1 further includes a priority holding unit 108 that holds a priority set for each wireless device sub-station 2.

[0040] Therefore, between the wireless device master station 1 and multiple wireless device slave stations 2, data sequences can be efficiently transmitted in succession for a high-priority data sequence in which data loss is not permitted and a low-priority data sequence in which data loss is permitted.

[0041] <Embodiment 2> Next, a wireless communication system according to the second embodiment will be described. Fig. 11 is a configuration diagram of the wireless communication system according to the second embodiment. Fig. 12 is a block diagram of a wireless device substation 2 included in the wireless communication system according to the second embodiment. Note that in the second embodiment, the same components as those described in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

[0042] In the first embodiment, the wireless device master station 1 holds the priority of the data series for each wireless device slave station 2, and allocates resources according to the priority of the data series for each wireless device slave station 2. However, when multiple data series with different priorities exist in the same wireless device slave station 2, they have the same priority, so it is not possible to allocate resources taking into account the priority of the data series. In the second embodiment, even when multiple data series with different priorities exist in the same wireless device slave station 2, it is possible to allocate resources taking into account the priority of the data series by adding a priority to each data series.

[0043] As shown in Fig. 11, the wireless communication system includes wireless device master stations 1A, 1B, and 1C, a wireless device slave station 2A, a sensor 3, a camera 4, a sensor monitoring control device 5, a video receiving device 6, a radio wave environment monitoring device 7, and a wired network 8. In Fig. 11, the wireless device slave station 2A is shown only under the wireless device master station 1A, but it may also be installed under the wireless device master stations 1B and 1C.

[0044] Next, a description will be given of the configuration of the wireless device slave station 2 in the embodiment 2. As shown in Fig. 12, the wireless device slave station 2 includes an antenna 201, an RF unit 202, a modulation / demodulation unit 203, a control unit 204, a transmission quality measurement unit 205, and a priority holding unit 208.

[0045] The control unit 204 sets a priority for each data series and holds it in the priority holding unit 208. Although not shown, the priority for each data series held in the priority holding unit 208 is classified into two levels, 0 and 1, for each data series. Regarding the priority for each data series, data series related to monitoring and control, such as monitoring data detected by the sensor 3 and control data transmitted from the sensor monitoring control device 5, are set as high priority data series in which data loss is not permitted, and data series related to images, such as image data captured by the camera 4, are set as low priority data series in which data loss is permitted.

[0046] When transmitting, the control unit 204 generates a data series to which the priority stored in the priority storage unit 208 is added based on the data from the sensor 3 or camera 4, and outputs the data series to the modulation / demodulation unit 203, and when receiving, controls the output of the demodulated data output from the modulation / demodulation unit 203 to the sensor 3 or camera 4.

[0047] The data series output to the modem unit 203 is radiated into the air as a radio signal from the antenna 201 via the RF unit 202 and is received by the antenna 101 of the wireless device master station 1A shown in Fig. 11. As shown in Fig. 2, the radio signal received by the antenna 101 is input to the resource allocation unit 107 via the RF unit 102, the modem unit 103, and the control unit 104. When a plurality of data series are transmitted in succession, the resource allocation unit 107 performs resource allocation according to the priority added to the data series and transmitted from the control unit 204 of the wireless device slave station 2A. Here, the control unit 104 of the wireless device master station 1A corresponds to a first control unit, and the control unit 204 of the wireless device slave station 2A corresponds to a second control unit.

[0048] As described above, in the second embodiment, the wireless device parent station 1 includes a resource allocation unit 107 that performs resource allocation to select a frequency channel with good transmission quality based on the transmission quality of each frequency channel and preferentially allocate a time slot in a frequency hopping pattern corresponding to the selected frequency channel as a time slot to be used for transmitting a data sequence, and a control unit 104 that controls transmission of the data sequence using the time slot and frequency channel allocated by the resource allocation unit 107. The wireless device parent station 2A includes a control unit 204 that controls transmission of the data sequence by adding a priority set for each data sequence to the data sequence. When multiple data sequences are transmitted continuously, the resource allocation unit 107 performs resource allocation according to the priority added to the data sequence and transmitted by the control unit 204.

[0049] Therefore, even if multiple data series with different priorities exist in the same wireless device slave station 2A, resources can be allocated taking into account the priority of each data series by assigning a priority to each data series, thereby enabling efficient continuous transmission of data series with different priorities.

[0050] Here, a description will be given of the hardware configuration of the wireless device master station 1 and the wireless device slave station 2 described in the first and second embodiments. The antenna 101 of the wireless device master station 1 and the antenna 201 of the wireless device slave station 2 are antenna elements. The RF unit 102 of the wireless device master station 1 and the RF unit 202 of the wireless device slave station 2 are composed of an analog circuit that performs frequency conversion, an analog-to-digital converter, a digital-to-analog converter, and the like.

[0051] In the wireless device master station 1, the modulation / demodulation unit 103, the control unit 104, the transmission quality measurement unit 105, the transmission quality holding unit 106, the resource allocation unit 107, and the priority holding unit 108 are realized by processing circuits. In the wireless device slave station 2, the modulation / demodulation unit 203, the control unit 204, the transmission quality measurement unit 205, and the priority holding unit 208 are realized by processing circuits.

[0052] The processing circuit may be a dedicated hardware, or may be a control circuit including a memory and a processor that executes a program stored in the memory. The processor may be a CPU (Central Processing Unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, a DSP (Digital Signal Processor), etc. The memory may be, for example, a non-volatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD (Digital Versatile Disk), etc.

[0053] Fig. 13 is a diagram showing an example of the configuration of a processing circuit included in the wireless device master station 1 and the wireless device slave station 2 in the first and second embodiments. When the processing circuit is realized by dedicated hardware, the processing circuit is a processing circuit 90 shown in Fig. 13. The processing circuit 90 is, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination of these.

[0054] 14 is a diagram showing another example of the configuration of the processing circuit included in the wireless device master station 1 and the wireless device slave station 2 in the first and second embodiments. The processing circuit includes a processor 91 and a memory 92. The processing circuit is realized by the processor 91 executing a program corresponding to each component stored in the memory 92. The memory 92 is also used as a temporary memory for each process performed by the processor 91.

[0055] It should be noted that the embodiments can be freely combined, and each embodiment can be modified or omitted as appropriate. [Explanation of symbols]

[0056] 1, 1A to 1C wireless device master stations, 2, 2A, 2B wireless device slave stations, 104 control unit, 107 resource allocation unit, 108 priority holding unit, 204 control unit.

Claims

1. A wireless communication system comprising a wireless device master station and a wireless device slave station, and capable of continuously transmitting a plurality of data series between the wireless device master station and the wireless device slave station, a resource allocation unit in the wireless device master station that selects a frequency channel having good transmission quality based on a transmission quality of each frequency channel and performs resource allocation by preferentially allocating a time slot in a frequency hopping pattern corresponding to the selected frequency channel as a time slot to be used for transmitting the data sequence; a control unit that controls transmission of the data sequence using the time slot and the frequency channel allocated by the resource allocation unit, When a plurality of the data series are transmitted in succession, the resource allocation unit allocates the resources according to a priority set for each type of device communicating with the wireless device slave station.

2. The wireless communication system described in claim 1, wherein the wireless device sub-station communicates with at least two of the heterogeneous devices, and adds the priority to the data series and transmits it to the wireless device parent station.

3. a resource allocation unit that performs resource allocation for selecting a frequency channel having good transmission quality based on the transmission quality of each frequency channel, and preferentially allocating a time slot in a frequency hopping pattern corresponding to the selected frequency channel as a time slot to be used for transmitting a data sequence; a control unit that controls transmission of the data sequence using the time slot and the frequency channel allocated by the resource allocation unit, a wireless communication system including a wireless device master station and a plurality of wireless device slave stations, the wireless device master station being capable of continuously transmitting a plurality of data sequences between the plurality of wireless device slave stations, When the wireless device master station transmits a plurality of the data series in succession, the resource allocation unit allocates the resources according to a priority set for each type of device communicating with the wireless device slave station.

4. The wireless communication device described in claim 3, wherein the wireless device parent station transmits multiple data series continuously between at least two wireless device sub-stations that communicate with different types of devices, and the resource allocation unit allocates the resources according to the priority attached to the data series and transmitted from the wireless device sub-station.

5. A wireless communication system including a wireless device master station and a wireless device slave station, and capable of continuously transmitting a plurality of data sequences between the wireless device master station and the wireless device slave station, a resource allocation unit in the wireless device master station that selects a frequency channel having good transmission quality based on a transmission quality of each frequency channel and performs resource allocation by preferentially allocating a time slot in a frequency hopping pattern corresponding to the selected frequency channel as a time slot to be used for transmitting the data sequence; a first control unit that controls transmission of the data sequence using the time slot and the frequency channel allocated by the resource allocation unit, the wireless device slave station includes a second control unit that performs control to add a priority set for each of the data series to the data series and transmit the data series; a resource allocation unit that allocates resources according to the priority that is added to the data series and transmitted from the second control unit when a plurality of the data series are transmitted continuously.

6. a resource allocation unit that performs resource allocation for selecting a frequency channel having good transmission quality based on the transmission quality of each frequency channel, and preferentially allocating a time slot in a frequency hopping pattern corresponding to the selected frequency channel as a time slot to be used for transmitting a data sequence; a control unit that controls transmission of the data sequence using the time slot and the frequency channel allocated by the resource allocation unit, When a plurality of the data series are continuously transmitted, the resource allocation unit performs the resource allocation according to a priority set for each of the data series; a wireless communication system including a wireless device master station and a plurality of wireless device slave stations, the wireless device master station being capable of continuously transmitting a plurality of data sequences between the plurality of wireless device slave stations, When the wireless device master station transmits a plurality of the data series in succession, the resource allocation unit allocates the resources according to the priority added to the data series and transmitted from the wireless device slave station.

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