WO2017022444A1 - Terminal device, communication method and program - Google Patents

Terminal device, communication method and program Download PDF

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Publication number
WO2017022444A1
WO2017022444A1 PCT/JP2016/070831 JP2016070831W WO2017022444A1 WO 2017022444 A1 WO2017022444 A1 WO 2017022444A1 JP 2016070831 W JP2016070831 W JP 2016070831W WO 2017022444 A1 WO2017022444 A1 WO 2017022444A1
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WO
WIPO (PCT)
Prior art keywords
communication
wireless lan
laa
frequency band
access point
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PCT/JP2016/070831
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French (fr)
Japanese (ja)
Inventor
山崎 敦史
勝利 石倉
秀章 新明
佐藤 保
嵯峨 洋行
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シャープ株式会社
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Priority to JP2015154228 priority Critical
Priority to JP2015-154228 priority
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2017022444A1 publication Critical patent/WO2017022444A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation

Abstract

This terminal device is provided with: a communication unit which uses a first frequency band or a second frequency band to communicatively connect to a first network; a detecting unit which detects second network communication executed by using the second frequency band; and a control unit which stops the communication unit from using the second frequency band, when the result detected by the detecting unit satisfies a prescribed interference avoidance condition.

Description

Terminal, communication method and program

The present invention is a terminal device, a communication method and a program.
The present application, on August 4, 2015, claiming priority based on Japanese Patent Application No. 2015-154228, filed in Japan, the contents of which are incorporated here.

With the increase in demand for data communications, in order to improve communication speed and communication efficiency, the use of LAA (License Assisted Access using LTE) has been studied. LAA is, unlicensed band (unlicensed band) LTE using the (Long Term Evolution, LTE is a registered trademark) is a communication system that utilizes. The LTE, is a third generation (3G) standard that speeds up data communication of mobile phones, is also referred to as 3.9G.

Base station utilizing the LAA, license other networks that utilize unnecessary band, for example, when detecting the presence of the wireless LAN communication, so as not to interference, the wireless LAN (Local Area Network; Local Area Network) communication there it is necessary to perform communication, such as avoiding the frequency band used. Therefore, the wireless device described in Patent Document 1, when detecting a radio wave interference between the LAA and the wireless LAN communication, and requests the handover to the base station of the LAA, to change the frequency band LAA is used. Thus, the wireless device communicates with a wireless LAN communication radio wave interference does not frequency band.

JP-T 2013-535139 JP

Meanwhile, the wireless LAN access point when detecting the deterioration of the communication quality, it is possible to voluntarily modify to communication quality recover frequency band to be used. However, when the frequency band after changing wireless LAN access point wireless device is already used it may happen that radio interference hinders the recovery of the communication quality of the wireless LAN communication occurs.

Some embodiments of the present invention has been made in view of the above, the terminal device can communicate with hardly interfere with the recovery of the communication quality of the wireless LAN communication, to provide a communication method and a program.

(1) some aspects of the present invention has been made to solve the above problems, as one aspect of the present invention, first by using the first frequency band or a second frequency band a communication unit for communicating to a network connection, a detector for detecting the communication of the second network is performed using a second frequency band, a detection result of said detecting unit, satisfies a predetermined interference avoidance conditions If a terminal device and a control unit for stopping the use of the said communication unit a second frequency band.

(2) Further, as an embodiment of the present invention, the interference avoidance conditions are described is to detect that the identifier that identifies the access point of the second network corresponds to a specific identifier (1) it is a terminal device.

(3) Further, as an embodiment of the present invention, the interference avoidance conditions, the interference between the radio wave of the said radio wave of the second frequency band in a communication connection to the first network the second network a terminal device according to is to detect (1).

(4) Further, as an embodiment of the present invention, line using a communication step of communicating connection to the first network using a first frequency band or the second frequency band, the second frequency band a detection step of detecting the communication of the second network dividing, detection results in the detecting step, if it satisfies a predetermined interference avoidance conditions, control step of stopping the use of the second frequency band in the communication step When a communication method having.

(5) Further, as an embodiment of the present invention, the computer, and a communication step of using a first frequency band or second frequency band to the communication connection to the first network, using the second frequency band a detection step of detecting a to communication of the second network to be performed, the detection result in the detecting step, if it satisfies a predetermined interference avoidance conditions, stop using the second frequency band in the communication step is a program for executing a control step of.

According to some embodiments of the present invention, communication can be performed while hardly interfere with the recovery of the communication quality of the wireless LAN communication.

Is a schematic diagram showing an example of a configuration of a communication system according to this embodiment. Is a block diagram showing an example of a configuration of a terminal apparatus in a communication system according to this embodiment. Is a diagram showing an example of a registration of SSID list configuration in the communication system according to the present embodiment. Is a flowchart illustrating an example of operation of the terminal device in the communication system according to this embodiment. Is a schematic diagram showing an example of a configuration of a communication system according to a modification of the present embodiment.

(Embodiment)
Embodiments of the present invention will be described with reference to the drawings.
Figure 1 is a schematic diagram showing an example of a configuration of a communication system according to this embodiment.
Communication system 1 includes a terminal device 10 (10-1, 10-2), a wireless LAN terminal 11, a first communication base station 21, a second communication base station 22, and a wireless LAN access point 23 constructed.

Terminal 10 (10-1, 10-2) is, in the communication method of the LAA adaptable, a terminal device supporting the LTE communication (first network). The terminal device 10 (10-1, 10-2) is, by receiving radio waves transmitted from the access point of a wireless LAN communication (the second network), it is possible to detect an access point. Terminal 10 (10-1, 10-2) is, for example, a smart phone, and the tablet device or a personal computer.

Wireless LAN terminal 11 is a terminal device corresponding to the wireless LAN communication. Wireless LAN terminal 11, for example, a smart phone, and the tablet device or a personal computer.
The first communication base station 21, the LTE communication using the license band (first frequency band), a communication base station device that communicates connected to terminal device 10 (10-1, 10-2).
Second communication base station 22, the LTE communication using unlicensed band (second frequency band), a communication base station device that communicates connected to terminal device 10 (10-1, 10-2).

First communication base station 21 and the second communication base station 22 is composed of, for example, a eNodeB (evolved Node B). eNodeB and is a wireless base station corresponding to the radio communication of the LTE scheme. Note that the license band is a frequency band available undergoing approval by the authorities, and the unlicensed band is a frequency band available without requiring approval by the agency (e.g., 5 MHz band).

As described above, the terminal device 10 (10-1, 10-2) is adaptable to the communication method of the LAA. Incidentally, LAA (or, also called LTE-U) and a communication method for performing communication by LTE or LTE-Advanced (LTE-A) using the unlicensed band is also used in wireless LAN communication. 2015 of May, in the standardization project of the mobile communication system "3GPP (3rd Generation Partnership Project)", the introduction of the LAA has been studied, discussed in order to be incorporated in the "Release 13" release target March 2016 It has been made.

LAA may be used in combination with LTE communication using a license band is assumed. LAA is, while maintaining the LTE communication to use the license band, in the case unlicensed band that can be communication to use is used by bundling the line you want to use the line and unlicensed band to use the license band, to enable the realization of the so-called "carrier aggregation".

Wireless LAN access point 23 is a device for communication connection with the wireless LAN terminal 11 by the wireless LAN communication. Wireless LAN access point 23 is composed of, for example, a wireless LAN router. In addition, the wireless LAN communication, the communication connection using the unlicensed band.

And unlicensed bands second communication base station 22 is used, the unlicensed band wireless LAN access point 23 is utilized, a common frequency band (e.g., 5 GHz band) are included. Therefore, the LTE communication by the second communication base station 22, the wireless LAN communication by the wireless LAN access point 23, may occur when using the same frequency band simultaneously. In that case, because it can radio interference occurs, it is necessary that the same frequency band at the same time not used.

In Figure 1, cell first communication base station 21 forms are cells A21. Note that the cell is a range in which communication base station covers. Therefore, the terminal device 10-1 and 10-2 located in the cell A21 may be the first communication base station 21, communicates connected by LTE communication using a license band.

Similarly, cells in which the second communication base station 22 forms are cells A22. Therefore, the terminal device 10-1 and 10-2 located in the cell A22 may be the second communication base station 22, communicates connected by LTE communication (LAA) to use the unlicensed band. Specifically, the first communication base station 21, LAA primary cell; to form a (Primary Cell PCELL), the second communication base station 22, LAA secondary cell corresponding to the primary cell (Secondary Cell; SCELL) to form. Primary cell here is a cell communication for data communications and control information. Secondary cells, data communication using the control information communicated by the primary cell is a cell to be performed. For example, a primary cell, a secondary cell, a primary cell of LTE-A, respectively, is the secondary cell. Second communication base station 22 forms a secondary cell using an unlicensed band.

Range wireless LAN access point 23 is covered is a wireless LAN area A23. Wireless LAN terminal 11 within the wireless LAN area A23 includes a wireless LAN access point 23 may be communicatively coupled by a wireless LAN communication. The wireless LAN access point 23 is likewise unlicensed band and the second communication base station 22 (e.g., 5 GHz band) to the communication connection with the wireless LAN terminal 11 using.

As shown in FIG. 1, the terminal device 10-1, and located in the cell A21 and the cell A22, it is located where a service area of ​​the wireless LAN area A23. Terminal 10-1, bundled and LTE communication using a license band by the communication connection between the first communication base station 21, the LTE communication and using unlicensed bands by a communication connection with a second communication base station 22 it is possible to perform LAA communication.

Further, as shown in FIG. 1, the terminal device 10-2 located in the cell A21 and the cell A22, and is positioned in a location that is within the wireless LAN area A23. As described above, the terminal device 10 (10-1, 10-2) is capable of detecting an access point of a wireless LAN communication, the terminal device 10-2 detects a wireless LAN access point 23. Terminal 10-2, when detecting the access point of a wireless LAN communication, in order to avoid radio interference, to disable the function of performing LAA communication. That is, the terminal device 10-2 performs only LTE communication using a license band by the communication connection between the first communication base station 21, LTE communication using unlicensed bands by a communication connection with a second communication base station 22 It is not performed. Thus, the terminal device 10-2, can avoid interference between the LTE communication and wireless LAN communication by the unlicensed band.

(Configuration of the terminal device)
Next, a detailed description of a configuration of the terminal apparatus 10 (10-1, 10-2).
Figure 2 is a block diagram showing an example of a configuration of a terminal device according to the present embodiment.
Terminal device 10 is configured to include a communication unit 100, a control unit 110, a storage unit 120, a display unit 130, an operation input unit 140, include.

The communication unit 100 includes a communication connection and the first communication base station 21 and the second communication base station 22, performs detection of the access point of a wireless LAN communication. Configuration communication unit 100 includes a LTE processor 101, an LTE-RF unit 102, an LAA processing unit 103, a LAA-RF unit 104, a wireless LAN processor 105, a wireless LAN-RF unit 106, including a It is.
Control unit 110 controls various operations of the terminal device 10. Control unit 110 includes a LAA invalid control unit 111, a timer control unit 112, include.

LTE processor 101 via the LTE-RF unit 102 and the antenna, using the LTE communication system, transmits and receives various data and the first communication base station 21.
LTE-RF unit 102 includes an intermediate frequency signal indicative of data input and output between the LTE processor 101 and the LTE-RF unit 102, the high input and output between the antenna and the LTE-RF unit 102 to convert the frequency of the signal.

LAA processing unit 103, through the LAA-RF unit 104 and the antenna, using the communication method of the LAA, transmits and receives various data and the second communication base station 22.
LAA-RF unit 104 includes an intermediate frequency signal indicative of data input and output between the LAA processing unit 103 and the LAA-RF unit 104, the high input and output between the antenna and the LAA-RF unit 104 to convert the frequency of the signal.

Wireless LAN processing unit 105 (detection unit) via the wireless LAN-RF unit 106 and the antenna, attempts periodically (e.g., every 10 seconds) detecting access points nearby wireless LAN communication. Wireless LAN processing unit 105, the access point SSID detected; the list a is detected SSID list (Service Set Identifier Service Set Identifier), and outputs to the LAA disable controller 111 to be described later. The wireless LAN processing unit 105, even if you have not acquired even one SSID, and outputs to the LAA disable controller 111 to be described later empty detection SSID list.
Wireless LAN-RF unit 106, the high frequency signal input from an antenna, converted to an intermediate frequency signal indicating SSID, and outputs to the wireless LAN processing unit 105.

LAA disable control unit 111 controls the disabling process of the LAA communication function. Specifically, LAA disable control unit 111 disables the LAA communication function by stopping the power supply to the LAA processing unit 103 and the LAA-RF unit 104. Incidentally, how to disable the LAA communication function may be a method other than the method of stopping the power supply. For example, a method to disable the LAA communication function may be a way to disable the communication function under software control, or a method to disable the communication function by physically switched off.

Storage unit 120 stores in advance a registration SSID list is a list of SSID of the wireless LAN. Registration SSID list is a list SSID corresponding to the wireless LAN communication access points that may cause LAA communication and radio interference listed. For more information about the registration SSID list the configuration of which will be described later. Storage unit 120 of the storage medium, for example, a hard disk drive (HDD; Hard Disk Drive), a flash memory, Ii Prom (EEPROM; Electrically Erasable Programmable Read Only Memory), ROM (Read Only Memory; read only memory), RAM (Random Access read / write memory; composed readable and writable memory), or include any combination thereof.

Display unit 130 displays various kinds of information. The display unit 130 displays, for example, a liquid crystal display or an organic electroluminescence; configured to include a (EL Electroluminescence) display.

The operation input unit 140 receives various operation inputs from a user of the terminal device 10. The operation input unit 140 is configured to include an operation input member, for example, operation buttons or the keyboard.
SSID registered in registration SSID list, for example, it is registered by the user of the terminal device 10 to input via the operation input unit 140 with reference to the display unit 130.

LAA disable control unit 111 compares the SSID included the SSID included in the detection SSID list acquired from the wireless LAN processing unit 105, the stored registered SSID list storage unit 120. SSID matching the SSID included in the registration SSID list, if included in one still detected SSID list, LAA disable control unit 111, the power supply to the LAA processing unit 103 and the LAA-RF unit 104 to stop. SSID matching the SSID included in the registration SSID list, if not included in the detection SSID list, LAA disable control unit 111, a non-detection signal indicating that the corresponding SSID is not detected, later and outputs to the timer control unit 112.

As described above, the wireless LAN processing unit 105 periodically detects the access points nearby wireless LAN communication, and outputs a detection result (detection SSID list) to LAA disable controller 111.
After LAA disabling controller 111 disables the LAA communication function, SSID that matches the SSID contained in the registration SSID list, if no longer included in the detection SSID list, the LAA invalid controller 111 LAA communication function return to a valid state again.

However, such as when the reception of the radio wave is unstable by being located terminal apparatus 10 around the outer edge of the wireless LAN area A23, there may not be obtained temporarily SSID for some reason. Accordingly, SSID is a predetermined time the state that are no longer included in the detection SSID list (e.g., one minute) when continued for more than, LAA disable controller 111 LAA communication function that matches the SSID contained in the registration SSID list the better to return to the re-enabled state is preferred.

Timer control unit 112 functions as a timer for measuring the predetermined time described above. Specifically, timer control unit 112 stores the timer start flag. Timer start flag timer when switched from "off" to "on" is activated. Timer is terminated when a predetermined time (e.g., 1 minute) elapses.

Timer control unit 112, when acquiring the non-detection signal from the LAA disable controller 111, if LAA communication function is disabled state timer start flag is "off", the timer start flag to "on". The timer control unit 112, when acquiring the non-detection signal from the LAA disable controller 111, a LAA communication function is disabled state timer start flag "on", and if the timer has ended, switch the timer start flag to "off".
Timer control unit 112, when switching timer start flag to "off", and outputs a timer end signal indicating timer end to LAA disable controller 111. LAA disable controller 111, when the timer control unit 112 acquires the timer end signal, to enable re LAA communication function. That, LAA disable control unit 111 restarts the power supply to the LAA processing unit 103 and the LAA-RF unit 104.
Incidentally, even without providing the above fixed time (i.e., even certain time 0 seconds) may.

(The configuration of the registration SSID list)
Next, a detailed description of the construction of the registration SSID list.
Figure 3 is a diagram showing an example of the configuration of the registration SSID list according to the present embodiment.
As shown, the registration SSID list, "No.", "String", and "retrieval type" for a 2-dimensional table format table consists of a sequence of three items. Each row of the registration SSID list, respectively, represent the matching condition of the SSID. It should be noted that, "No." Items may or may not, registration SSID list, may be a table in which at least a "string" and "search type" are associated with each other. For example, registration SSID list, "String", and "retrieval type" for may be a two-dimensional table format in the table consisting of two items of the column.

In the item "No.", number assigned to identify each matching condition is stored. In the item of "character string", part or all of the character string of the SSID is stored. In the item of "search type", the search rules of the string is stored.
For example, the value of each item in the first row of the registration SSID list is the "No.1", "AAA001", and "perfect match". That is, the first row of the registration SSID list, indicating that that the character string of the SSID is completely consistent with the "AAA001", is a condition that. In addition, the third line of the registration SSID list, indicating that that the character string of the SSID to forward consistent with the "BBB", with the proviso that. Thus, true conditions of the character string of the SSID is not limited to the condition that the SSID included in the SSID and registration SSID list included in detected SSID list is "exact match", "forward match", "backward match" , it may be a "(specific) contains the string", or "free of (specific) string" conditions such as.

(Operation of the receiver)
Next the operation of the terminal device 10.
Figure 4 is a flow chart showing an example of the operation of a terminal apparatus according to the present embodiment.
This flowchart wireless LAN processing unit 105 starts when attempting to detect an access point of the surrounding wireless LAN communication.

(Step S101) wireless LAN processing unit 105, the detection completed access point of the wireless LAN communication, and outputs a detection SSID list to the LAA disable controller 111. Then, the process proceeds to step S102.

(Step S102) LAA disable control unit 111 compares the SSID included the SSID included in the detection SSID list acquired from the wireless LAN processing unit 105, the stored registered SSID list storage unit 120. If the SSID corresponding to the list of registered SSID is included in the detected SSID list, the process proceeds to step S103. Otherwise, the process proceeds to step S107.

(Step S103) LAA disable controller 111, either LAA communication function is a valid state, checks whether an invalid state. That, LAA disable control unit 111 that either the power supply to the LAA processing unit 103 and the LAA-RF unit 104 is being performed, to check whether the state has stopped. If LAA communication function is a valid state, the flow proceeds to step S104. Otherwise, the process of this flowchart ends.

(Step S104) the control unit 110 confirms whether the LAA processing unit 103 is communicating with the second communication base station 22. If it is communicating, the flow advances to step S105. Otherwise, the process proceeds to step S106.

(Step S105) the control unit 110 disconnects the communication with the LAA processing unit 103 and the second communication base station 22. Thereafter, the flow advances to step S106.

(Step S106) LAA disable control unit 111 disables the LAA communication function. That, LAA disable control unit 111 disables the LAA communication function by stopping the power supply to the LAA processing unit 103 and the LAA-RF unit 104. This is the end of the process of this flowchart.

(Step S107) LAA disable control unit 111 outputs a non-detection signal to the timer control unit 112.
LAA disable control unit 111, either LAA communication function is a valid state, checks whether an invalid state. That, LAA disable control unit 111 that either the power supply to the LAA processing unit 103 and the LAA-RF unit 104 is being performed, to check whether the state has stopped. If LAA communication function is disabled, the process proceeds to step S108. Otherwise, the process of this flowchart ends.

(Step S108) the timer controller 112, the timer start flag to confirm whether it is "on", "off". Timer start flag is "on", the process proceeds to step S109. Otherwise, the process proceeds to step S112.

(Step S109) the timer control unit 112 checks whether or not the timer has ended.
If the timer has been completed, the process proceeds to step S110. Otherwise, the process of this flowchart ends.

(Step S110) the timer controller 112, the timer start flag to "off". Then, the process proceeds to step S111.

(Step S 111) LAA disable controller 111 to enable the LAA communication function. That, LAA disable controller 111 to enable the LAA communication function by resuming the power supply to the LAA processing unit 103 and the LAA-RF unit 104. This is the end of the process of this flowchart.

(Step S112) the timer controller 112, the timer start flag to "on". Then, the process proceeds to step S113.

(Step S113) the timer control unit 112 starts a timer. This is the end of the process of this flowchart.

As described above, the terminal device 10 according to the present embodiment detects an access point of a wireless LAN communication using unlicensed bands contained a specific SSID in SSID of the detected access point If, to disable the LAA communication ability to use the unlicensed band. Previously, the SSID of the access point of a wireless LAN communication that may LAA communication and radio wave interference occurs, by registering the registration SSID list as a specific SSID, the terminal device 10 to be less likely to cause interference it can.

For example, a wireless LAN access point 23 detects the deterioration of the communication quality, it is possible to voluntarily modify to communication quality recover frequency band to be used. At this time, if the frequency band after the wireless LAN access point 23 has changed is already used between the terminal device 10 and the second communication base station 22, the terminal device 10 to disable the LAA communication function Accordingly, it is possible not interfere with the recovery of the communication quality of the wireless LAN communication.

Thus, the terminal device 10 according to the present embodiment can perform communication while hardly interfere with the recovery of the communication quality of the wireless LAN communication.

(Modification of Embodiment)
Next, a modified example of the embodiment of the present invention will be described with reference to the drawings.
Figure 5 is a schematic diagram showing an example of a configuration of a communication system according to a modification of the present embodiment.
Communication system 2 includes a terminal device 10 (10-3 and 10-4), a wireless LAN terminal 11, a first communication base station 24, a second communication base station 25, the wireless LAN access point 26, wireless LAN It constructed an access point 27, the wireless LAN access point 28, and a wireless LAN access point 29.

Terminal 10 (10-3 and 10-4) are also the communication method of the LAA adaptable, a terminal device supporting the LTE communication (first network). The terminal device 10 (10-3 and 10-4), by receiving radio waves transmitted from the access point of a wireless LAN communication (the second network), it is possible to detect an access point. Terminal 10 (10-3 and 10-4), for example, a smart phone, and the tablet device or a personal computer.

Wireless LAN terminal 11 is a terminal device corresponding to the wireless LAN communication. Wireless LAN terminal 11, for example, a smart phone, and the tablet device or a personal computer.
The first communication base station 24, the LTE communication using the license band (first frequency band), a communication base station device that communicates connected to terminal device 10 (10-3 and 10-4).
Second communication base station 25, the LTE communication using unlicensed band (second frequency band), a communication base station device that communicates connected to terminal device 10 (10-3 and 10-4).

The first communication base station 24 and the second communication base station 25 is composed of, for example, a eNodeB (evolved Node B).

Wireless LAN access point 26, wireless LAN access point 27, wireless LAN access point 28 and the wireless LAN access point 29, is a device that communication connection with the wireless LAN terminal 11 by the wireless LAN communication. Wireless LAN access point 23 is composed of, for example, a wireless LAN router. In addition, the wireless LAN communication, the communication connection using the unlicensed band.

Further, the wireless LAN access point 26, wireless LAN access point 27, wireless LAN access point 28 and the wireless LAN access point 29, are each installed access points in the building 3 is building.

Wireless LAN access point 26, wireless LAN access point 27, the unlicensed band wireless LAN access point 28 and the wireless LAN access point 29, is utilized, a common frequency band and the unlicensed band second communication base station 25 is used (for example, 5GHz band) are included. Therefore, the wireless LAN access point 26, wireless LAN access point 27, a wireless LAN communication by the wireless LAN access point 28 and the wireless LAN access point 29, and the LTE communication by the second communication base station 22, the same frequency band at the same time If you want to use it may occur. In that case, because it can radio interference occurs, it is necessary that the same frequency band at the same time not used.

5, cells first communication base station 24 forms are cells A24. Terminals 10-3 and 10-4 located in the cell A24 may be the first communication base station 24, communicates connected by LTE communication using a license band.

Similarly, cells in which the second communication base station 25 forms are cells A25. Therefore, the terminal device 10-3 and 10-4 located in the cell A25 may be the second communication base station 25, communicates connected by LTE communication (LAA) to use the unlicensed band. Specifically, the first communication base station 24 forms a primary cell of the LAA, the second communication base station 25 forms a secondary cell of the LAA in correspondence with the primary cell. For example, a primary cell, a secondary cell, a primary cell of LTE-A, respectively, is the secondary cell. Second communication base station 25 forms a secondary cell using an unlicensed band.

Wireless LAN access point 26, wireless LAN access point 27, the range of the wireless LAN access point 28 and the wireless LAN access point 29, covers, respectively, a wireless LAN area A26, the wireless LAN area A27, the wireless LAN area A28, and a wireless LAN an area A29. Wireless LAN terminal 11 within the wireless LAN area A29 includes a wireless LAN access point 29 may be communicatively coupled by a wireless LAN communication. The wireless LAN access point 29 is likewise unlicensed band and the second communication base station 25 (e.g., 5 GHz band) to the communication connection with the wireless LAN terminal 11 using.

The wireless LAN terminal 11, a wireless LAN access point 26, since the wireless LAN access point 27 and the wireless LAN access point 28, not visited, the wireless LAN access point 26, wireless LAN access point 27, and the wireless LAN It can not be the communication connection to the access point 28.

As shown in FIG. 5, the terminal apparatus 10-3 located in the cell A24 and the cell A25, wireless LAN area A26, the wireless LAN area A27, the wireless LAN area A28, and the out-of-service and a location of a wireless LAN area A29 positioned. Terminal 10-3, were bundled and LTE communication using a license band by the communication connection between the first communication base station 24, the LTE communication and using unlicensed bands by a communication connection with a second communication base station 25 it is possible to perform LAA communication.

Further, as shown in FIG. 1, the terminal device 10-4, and located in the cell A24 and the cell A25, and is positioned in a location that is within the wireless LAN area A26. As described above, the terminal device 10 (10-3 and 10-4) is capable of detecting an access point of a wireless LAN communication, the terminal device 10-4 detects a wireless LAN access point 26. Terminal 10-4 when it detects the access point of a wireless LAN communication, in order to avoid radio interference, to disable the function of performing LAA communication. That is, the terminal device 10-4 performs only LTE communication using a license band by the communication connection between the first communication base station 24, LTE communication using unlicensed bands by a communication connection with a second communication base station 25 It is not performed. Thus, the terminal device 10-4 can avoid interference between the LTE communication and wireless LAN communication by the unlicensed band.

The terminal device 10-4 can detect a wireless LAN access point 26 included in the wireless LAN area A26 that visited wireless LAN access point in the wireless LAN area A27 in the non-serving area 27, it is impossible to detect the wireless LAN access point 29 constituting the wireless LAN access point 28, and the wireless LAN area A29 in the wireless LAN area A28.

As described above, in a variation of this embodiment, within the range of cells A25 to the second communication base station 25 forms a plurality of wireless LAN access point (wireless LAN access point 26, wireless LAN access point 27, wireless LAN access point 28, and the wireless LAN access point 29) is present.

Also, SSID of the wireless LAN access point 26, wireless LAN access point 27, wireless LAN access point 28 and the wireless LAN access point 29, are all assumed to have been registered in the registration SSID list. The wireless LAN access point 26, wireless LAN access point 27, the SSID of the wireless LAN access point 28 and the wireless LAN access point 29, may be the same SSID, or may be a different SSID.

According to the configuration of the communication system 2 according to a modification of the present embodiment, not only it causes less interference with the wireless LAN communication by the wireless LAN access point 26 capable terminal device 10-4 detects, terminal can not device 10-4 detects a wireless LAN access point (i.e., a wireless LAN access point 27, wireless LAN access point 28 and the wireless LAN access point 29) to be less susceptible also interference with the wireless LAN communication by it can.

Because the terminal device 10-4 wireless LAN access point SSID registered in registration SSID list is attached (i.e., there is a possibility that the LAA communication and interference to which the own terminal apparatus 10-4 performs occurs wirelessly when detecting the wireless LAN access point) that perform LAN communication even one, the terminal device 10-4, to avoid radio interference, to disable the function of performing LAA communication.
Therefore, although a wireless LAN communication by the wireless LAN access point performs the terminal device 10-4 can not be detected, the wireless LAN communication LAA communication and radio interference by the terminal device 10-4 performs might occur also, the terminal device 10-4 can be less susceptible to interference.

For example, the terminal device 10-4 that is present on the first floor of the building 3 detects the wireless LAN access point 26 is installed on the first floor of the building 3. Terminal 10-4 recognizes that SSID of the wireless LAN access point 26 is detected, a SSID registered in registration SSID list. Terminal 10-4, for example, can not detect the wireless LAN access point 29 is installed the third floor of the building, by detecting the wireless LAN access point 26, to disable the function of performing LAA communication. Thus, the terminal device 10-4, can be difficult to cause radio wave interference between the wireless LAN communication is wireless LAN access point 29 can not be detected conducted.

For example, a wireless LAN access point 29 detects the deterioration of the communication quality, it is possible to voluntarily modify to communication quality recover frequency band to be used. At this time, if the frequency band after the wireless LAN access point 29 has changed is already used between the terminal device 10 and the second communication base station 25, the terminal device 10 to disable the LAA communication function Accordingly, it is possible not interfere with the recovery of the communication quality of the wireless LAN communication.

Thus, the terminal device 10 according to a modification of the present embodiment can perform communication while hardly interfere with the recovery of the communication quality of the wireless LAN communication wireless LAN access point can not be detected is performed.

Having thus described in detail embodiments of the present invention, the specific configuration is not limited to those described above, it can be various design changes and the like within a scope not departing from the gist of the invention is there.

The condition of the terminal device 10 to disable LAA communication function (predetermined interference avoidance condition) is not limited to the condition based on the detection of the specific SSID. For example, conditions to disable the LAA communication function may be a condition based on the detection of the radio wave interference between the LAA communication and wireless LAN communication. For example, based on changes in the field intensity of radio waves unlicensed band received by the LAA-RF unit 104, the control unit 110 determines the presence of radio interference, may be invalid control of the LAA communication function.

Incidentally, it is also possible to implement part or all of the terminal device 10 in the computer in the embodiment described above. In this case, by recording a program for realizing the control function on a computer-readable recording medium, to read the program recorded in this recording medium into a computer system, it may be realized by executing.

Here, the "computer system" may be a computer system incorporated in the terminal device 10 is intended to include an OS and hardware such as peripheral devices. The "computer-readable recording medium" refers to flexible disks, magneto-optical disks, ROM, portable media such as a CD-ROM, and a storage device such as a hard disk built in the computer system.

Even more, the "computer-readable recording medium", such as a communication line when the program is transmitted via a communication line such as a network or a telephone line such as the Internet, a short time, holds the dynamic program, such as a volatile memory inside a computer system serving as a server or a client in that case, it may also include those that holds the program for a certain time. The program may be one for implementing part of the above functions, may further be implemented in combination with previously recorded program being above functions in a computer system.

The terminal device 10 according to the embodiment described above, and may be implemented as an integrated circuit such as LSI (Large Scale Integration). Each functional block of the terminal device 10 may be a processor implemented individually, partially, or may be the processor by being integrated whole. Further, the method of circuit integration may be realized by a dedicated circuit or a general-purpose processor is not limited to LSI. Further, if integrated circuit technology replacing the LSI appears with the progress of semiconductor technology, it may be used integrated circuit according to the art.

Some embodiments of the present invention is applicable wireless LAN communication of the communication quality of restoring disturbed hardly while it is necessary terminal apparatus for communicating, such as the communication method, and a program.

1 ... communication system, 2 ... communication system, 3 ... Building, 10 ... terminal (10-1, 10-2, 10-3, 10-4), 11 ... Wireless LAN terminal, 21 ... first communication base station, 22 ... second communication base station, 23 ... wireless LAN access point, 24 ... first communication base station, 25 ... second communication base station , 26 ... wireless LAN access point, 27 ... wireless LAN access point, 28 ... wireless LAN access point, 29 ... wireless LAN access point, 100 ... communication unit, 101 ... LTE processing parts, 102 ... LTE-RF unit, 103 ... LAA processing unit, 104 ... LAA-RF unit, 105 ... wireless LAN processing unit, 106 ... wireless LAN-RF unit, 110 ... and control unit, 111 ··· LA Disable control unit, 112 ... timer control unit, 120 ... storage unit, 130 ... display unit, 140 ... operation input unit

Claims (5)

  1. A communication unit for communication connection to the first network using a first frequency band or a second frequency band,
    A detector for detecting the communication of the second network is performed using the second frequency band,
    A detection result of the detecting section, when satisfying the predetermined interference avoidance conditions, and a control unit for stopping the use of the second frequency band to the communication unit,
    Terminal device comprising a.
  2. The interference avoidance conditions, the terminal device according to claim 1 identifier identifying the access point of the second network is to detect that corresponding to the particular identifier.
  3. The interference avoidance conditions, the terminal device according to claim 1 that is is to detect the radio wave interference with radio waves of the said radio wave of the second frequency band a second network in communication connection to the first network .
  4. A communication step of communicating connection to the first network using a first frequency band or a second frequency band,
    A detection step of detecting the communication of the second network is performed using the second frequency band,
    Detection result of said detecting step, if it satisfies a predetermined interference avoidance conditions, a control step of stopping the use of the second frequency band in the communication step,
    Communication method with.
  5. On the computer,
    A communication step of communicating connection to the first network using a first frequency band or a second frequency band,
    A detection step of detecting the communication of the second network is performed using the second frequency band,
    Detection result of said detecting step, if it satisfies a predetermined interference avoidance conditions, a control step of stopping the use of the second frequency band in the communication step,
    Program for the execution.
PCT/JP2016/070831 2015-08-04 2016-07-14 Terminal device, communication method and program WO2017022444A1 (en)

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