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WO2008035424A1 - Station de base ratio, terminal radio, et système de communications mobiles - Google Patents

Station de base ratio, terminal radio, et système de communications mobiles Download PDF

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Publication number
WO2008035424A1
WO2008035424A1 PCT/JP2006/318760 JP2006318760W WO2008035424A1 WO 2008035424 A1 WO2008035424 A1 WO 2008035424A1 JP 2006318760 W JP2006318760 W JP 2006318760W WO 2008035424 A1 WO2008035424 A1 WO 2008035424A1
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WO
WIPO (PCT)
Prior art keywords
emergency
base station
emergency mode
radio base
wireless terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2006/318760
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English (en)
Japanese (ja)
Inventor
Kumiko Fujimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2008535242A priority Critical patent/JP4774440B2/ja
Priority to PCT/JP2006/318760 priority patent/WO2008035424A1/fr
Publication of WO2008035424A1 publication Critical patent/WO2008035424A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery

Definitions

  • Radio base station radio terminal and mobile communication system
  • the present invention relates to a mobile communication system having W-CDMA (Wideband Code Division Multiple Access) system technology.
  • W-CDMA Wideband Code Division Multiple Access
  • the present invention relates to communication between mobile devices when communication between a mobile device (MS, Mobile Station) and a mobile communication network is not possible.
  • Patent Document 1 JP 2000-201374 A
  • Non-Patent Document 2 Technical Specification Group Radio Access Network, "Physical channel and mapping of transport channels onto physical channels (FDD)", 3rd Generati on Partnership Project, 3GPP TR25.211
  • a mobile device Normally, a mobile device performs communication through a radio base station. When a radio base station cannot be used for some reason, mobile stations located in the area of the radio base station cannot communicate.
  • the present invention provides a method for transmitting data to a mobile communication network from a mobile station located within the area of the wireless base station even when communication with the wireless base station is disabled.
  • An object is to enable reception.
  • the present invention employs the following means in order to solve the above problems.
  • the present invention provides:
  • a wireless base station that is connected to a host device and provides wireless communication services to wireless terminals.
  • a determination unit that determines whether the wireless communication service can be continued
  • Wireless base station comprising
  • the present invention also provides:
  • a first receiver for receiving an emergency mode signal transmitted by the radio base station
  • a setting unit that sets the communication mode to the emergency mode when the emergency mode signal is received
  • a wireless terminal comprising: a first transmission unit that transfers the emergency information to a wireless base station that is different from the wireless base station that transmitted the emergency mode signal, or to another wireless terminal that is set to the emergency mode.
  • a mobile device located in an area of a wireless base station that cannot provide a wireless communication service can transmit emergency information.
  • the mobile device can transfer the emergency information to another mobile device or a radio base station that performs normal operation and provides (provides a wireless communication service).
  • the wireless terminal of the present invention includes a mobile device (MS).
  • the connection request of the present invention includes Emer gency Preamble is included.
  • the connection permission of the present invention includes Emergency Preamble Acknowl edge.
  • FIG. 1 is a diagram showing a configuration example of a UTMS system.
  • FIG. 2 is a diagram showing a configuration example of a radio base station (BTS).
  • BTS radio base station
  • FIG. 3 is a diagram showing a configuration example of a mobile device (MS).
  • FIG. 4 is a diagram for explaining the outline of the operation of the embodiment.
  • FIG. 5 is a diagram showing an operation flow of routing in emergency mode.
  • FIG. 6 is a diagram showing a routing operation flow in an emergency mode.
  • FIG. 7 is a diagram showing an example of emergency information transmitted using Emergency Message Part.
  • FIG. 8 is a diagram showing an operation example of a radio base station that is determined to be unable to continue the service.
  • FIG. 9 is a diagram showing an example of adding a new System information block type.
  • FIG. 10 A diagram showing an example of a new added System information block.
  • FIG. 11 is a diagram showing an example of a new System information block type 3.
  • FIG. 12 is a diagram showing an operation example of the mobile device when the area is in the emergency mode.
  • FIG. 13 is a diagram showing an operation example of a mobile device that wants to notify information urgently.
  • FIG. 14 is a diagram illustrating a configuration example of a PRACH (Physical Random Access Channel).
  • PRACH Physical Random Access Channel
  • FIG.15 A diagram showing the Uplink Emergency Message transmission format used in emergency mode.
  • FIG. 16 is a diagram showing a transmission format of a downlink emergency message used in emergency mode.
  • FIG. 17 is a diagram showing an operation example of a relay mobile device.
  • FIG. 18 is a diagram showing an operation example of a radio base station that has received emergency information on relay mobile equipment. Explanation of symbols
  • Radio Network Control (RNC) equipment 120 Radio Network Control (RNC) equipment
  • Fig. 1 shows an example of the configuration of a UTMS system.
  • the UTMS system includes a mobile station 103, a radio base station (BTS, Base Transceiver Station) 101 that terminates a radio section provided between the mobile stations 103, and a plurality of radio base stations.
  • BTS Base Transceiver Station
  • RNC radio network controller
  • FIG. 2 is a diagram illustrating a configuration example of the radio base station (BTS) of the present embodiment.
  • Radio base station 1 Radio base station 1
  • a TRX processing unit transmission / reception processing unit
  • a BB Base Band
  • SW unit switch unit
  • the TRX processing unit 230 includes an RX unit (reception unit) 201 and a TX unit (transmission unit) 202.
  • the TRX processing unit 230 communicates with the mobile device through the antenna.
  • BB processing section 240 transmits preamble reception section 208 that receives the preamble, reception control section 209 that controls the signal, message reception section 210 that receives the message, and Ack
  • the control unit 250 includes a call processing control unit 204 that performs call processing control, a storage unit 205 that stores data, a monitoring control unit 206 that performs monitoring control of devices, and a host device (such as an RNC).
  • IF section interface section, Iub), which is the interface of
  • the wireless base station 101 of the present embodiment determines the area for the mobile device 103 located in the area of the wireless base station 101. That is in emergency mode.
  • FIG. 3 is a diagram illustrating a configuration example of a mobile device (MS, Mobile Station) according to the present embodiment.
  • Mobile station (MS) 103 includes RF ⁇ 330, base node 340 340, ⁇ U ⁇ 350, and antenna 360.
  • the RF unit 330 includes an RX unit (reception unit) 301 and a TX unit (transmission unit) 302.
  • the RF unit 330 communicates with the radio base station (BTS) 101 or another mobile device 103 through the antenna 360.
  • BTS radio base station
  • Baseband section 340 includes AICH detection section 303, message reception section 304, AICH transmission section 305, Emergency preamble transmission section 306, Emergency message transmission section 307, Emergency preamble reception section 308, and Emergency message.
  • AICH detection section 303 detects that AI (Acquisition Indicator) has been received.
  • the message receiving unit 304 analyzes messages other than Emergency.
  • the AICH transmitter 305 Send AI (Acquisition Indicator).
  • Emergency Preamble Send ⁇ ! 5306 sends the Emerge ncy preamble.
  • Emergency message sending unit 307 sends an Emergency message.
  • the emergency preamble receiver 308 receives the emergency preamble.
  • the emergency message receiving unit 309 receives an emergency message.
  • the control unit 350 includes a control unit 310 that performs call processing control, and a storage unit 311 that stores data.
  • the mobile device 103 can transmit emergency information when located in the area of the emergency mode. Further, the mobile device of the present embodiment can transfer emergency information to a normally-operated radio base station or another mobile device when located in the area of the emergency mode.
  • FIG. 4 is a diagram for explaining the outline of the operation of the present embodiment.
  • FIG. 4 shows a normal operation state 1002, an emergency mode signal transmission state 1004, an emergency data transmission state 1006, and an emergency data transfer state 1008.
  • the mobile device 103a and the mobile device 103b existing in the area of the radio base station 101a communicate normally with the radio base station 101a. do. Further, the mobile device 103c located in the area of the radio base station 101a and the radio base station 101b performs normal communication with the radio base station 101a or the radio base station 101b.
  • the wireless base station 101a determines that the service cannot be continued in the mobile communication network (emergency mode signal transmission state 1004). At this time, the radio base station 101a notifies all the mobile devices 103a, 103b and 103c in the area that the area of the radio base station 101a is in the emergency mode. The mobile devices 103a, 103b, 103c, etc. in the area of the radio base station 101a receive notification that the area of the radio base station 101a is in the emergency mode.
  • the radio base station 101b receives a notification from the host device (RNC or the like) that the area of the radio base station 101a is in the emergency mode.
  • the radio base station 101b can receive emergency data.
  • the mobile station 103a in the emergency mode area needs to be notified urgently (emergency data transmission state 1006).
  • the mobile device (emergency mobile device) 103a uses an emergency signal to detect whether there is a mobile device (relay mobile device) capable of relaying (relaying) emergency information in the vicinity. To start. When a relay mobile device 103b capable of relaying emergency information is found, the emergency mobile device 103a transmits emergency information to the relay mobile device 103b after synchronization is established.
  • relay mobile station 103c checks whether there is a mobile station (relay mobile station) that can relay (relay) emergency information around it. To investigate, synchronous detection is started using an emergency signal. When a relay mobile device 103b capable of relaying emergency information is found, the relay mobile device 103b transmits emergency information to the relay mobile device 103c after synchronization is established.
  • the relay mobile device 103c searches for a relay mobile device capable of relaying surrounding emergency information in the same manner as described above. This is repeated until a relay mobile station that can communicate with the mobile communication network appears.
  • the relay mobile device 103c When the relay mobile device 103c can communicate with the mobile communication network, the relay mobile device 103c transfers the emergency information from the emergency mobile device 103a to the mobile communication network (emergency data transfer state 1008).
  • 5 and 6 are diagrams showing a routing operation flow in the emergency mode.
  • the radio base station cannot continue the service in the mobile communication network due to a failure of the radio network controller (RNC), a disconnection of the transmission path, or the like.
  • RNC radio network controller
  • the radio base station informs the mobile devices in the area that the area of the radio base station has shifted to the emergency mode.
  • Broadcast information is information transmitted from a radio base station to a mobile device at regular intervals. By newly providing notification information (SIB) notifying that the area has shifted to the emergency mode, it is possible to notify the mobile device of the emergency mode.
  • the mobile station 103 receives the broadcast information (SIB) of the radio base station power that cannot continue the service. ) To recognize that the area of the radio base station is in an emergency cell state (S1002)
  • the radio base station gives emergency cell status information and emergency monitoring CH information to mobile devices in the area.
  • a mobile station located in the emergency mode area starts emergency call monitoring.
  • the mobile station located in the emergency mode area and the normal area starts the emergency call monitoring in addition to the normal communication monitoring channel (S1004).
  • the emergency mobile station (MS) 103a that transmits emergency information starts routing.
  • the emergency mobile device 103a transmits an Emergency Preamble Channel to the nearby mobile device 103 (S1006).
  • the relay mobile station 103 When receiving the Emergency Preamble Channel, the relay mobile station 103 that is monitoring the emergency call returns an Emergency Preamble Acknowledge to the target mobile station of the Emergency Preamble Channel (S 1014). However, the relay mobile device 103 does not transmit Emergency Preamble Acknowledge (S 1012) after a certain time has not elapsed after receiving the Emergency Preamble Channel (S 1010; No).
  • the E mergency Preamble Channel that is sent without taking time is the power S that can travel the same route many times without being transmitted. The certain time is defined by the system as a parameter. This provides a guard for mobile stations that transmit Emergency Preamble Channel many times. By not returning E mergency Preamble Acknowledge for a certain period of time, it is possible to reduce the battery consumption of the mobile device 103.
  • the emergency mobile station 103a that has received the Emergency Preamble Acknowledge from the relay mobile station 103 transmits emergency information to the relay mobile station 103 using the Emergency Message Part (S1018).
  • Relay mobile station 103 receives emergency information from emergency mobile station 103a
  • FIG. 7 is a diagram illustrating an example of emergency information (Emergency Mass age) transmitted using the Emergency Message Part.
  • the emergency information includes a mobile station (MS) number, time information, and additional information.
  • the MS number is a code for identifying the mobile station that sends emergency information.
  • the time information is information indicating the date and time when the emergency information was created. Additional information is stored in the cell that the mobile station was communicating with immediately before. Cell ID, location information indicating the location of the mobile station, destination, message, etc.
  • the location information of the mobile device is obtained from the GPS (Global Positioning System) function of the mobile device.
  • the relay mobile device 103 that has received the Emergency Message determines whether or not communication with the mobile communication network is possible (S1020). If it is determined that communication is possible (S 1020; Yes), the relay mobile device 103 that has received the Emergency Message determines whether or not a call is currently being made (S 1022). When the call is not in progress (S1022; No), the relay mobile station 103 that has received the Emergency Message transfers the received Emergency Message to the radio base station of the area where the station is located with the highest priority (S1026). If communication is already in progress (S1022; Yes), transfer is performed using the multi-call function of the mobile device 103 (S1024).
  • the radio base station 101b in normal operation transfers the Emergency Message received from the relay mobile station 103 to the mobile communication network with the highest priority (S 1028).
  • the emergency information received on the mobile communication network side is forwarded to the destination (public organization: fire department, police station, etc.) as an emergency communication packet.
  • the relay mobile device 103 uses the time information of the emergency information to determine the elapsed time and the message of the routing start force. The effective time is compared to determine whether the force is within the effective time.
  • the message valid time is defined by the system as a parameter. If it is determined that the message is within the valid time (S1030; No), the relay mobile device 103 repeats the synchronous detection processing procedure (S1008 to S1016) for the other relay mobile devices. If it is determined that the valid time of the message has passed (S1030; Yes), the emergency information is discarded (S1032). Therefore, old emergency information whose valid time has passed is discarded. As a result, it is possible to prevent endless transfer between emergency information curry terminals that have expired.
  • FIG. 8 is a diagram for explaining the operation of the radio base station (BTS) that is determined to be unable to continue the radio communication service.
  • BTS radio base station
  • the control unit 250 of the radio base station 101 is monitored.
  • the visual control unit 206 detects that a failure has occurred (S202).
  • the monitoring control unit 206 notifies the call processing unit 204 of the occurrence of the failure (S203).
  • the call control unit 204 determines that the mobile communication network service cannot be continued, and transitions to the emergency mode. Further, the call control unit 204 notifies broadcast information (SIB) indicating the emergency mode to be notified to the mobile device 103 to the broadcast information transmission unit 212 of the broadband processing unit 240 via the SW unit 203 (S204). ).
  • the broadcast information transmitting unit 212 receives the SIB indicating the emergency mode from the call processing unit 204.
  • Broadcast information transmitting section 212 transmits SIB indicating the emergency mode to TX section 202 of TRX processing section 230 (S205).
  • TX section 202 transmits SIB including emergency mode to mobile station 103 in the area of radio base station 101.
  • Broadcast information is information that is issued from the radio base station to the mobile device at regular intervals. There are two methods for notifying broadcast information (SIB, System Information Block) for notifying the mobile station 103 located in the area that the area of the radio base station 101 has entered the emergency mode.
  • SIB System Information Block
  • Figure 9 shows a list of SIBs including newly added SIBs. For each SIB, it is defined in which range the same information is valid and in what circumstances the terminal can receive it. Currently, 3GPP defines SIB up to Typel8. Add a new SIB to this.
  • FIG. 10 is a diagram illustrating a configuration example of a new SIB.
  • information such as the cell status and what kind of preamble is output is registered as emergency information.
  • SIBType3 notifies the cell status (Cell Restriction). New emergency information is added to this SIBType 3. By adding emergency information to an existing SIB, it is possible to notify emergency information without creating a new LV or SIB.
  • FIG. 11 is a diagram illustrating an example of SIBType3 to which emergency information is added. Information such as cell status and what kind of preamble is output is registered as emergency information.
  • FIG. 12 is a diagram for explaining the operation of the mobile device when the area is in the emergency mode.
  • the RX unit 301 of the RF unit 330 of the mobile device 103 receives the SIB including the emergency mode from the radio base station 101.
  • the RX unit 301 notifies the received signal to the message receiving unit 304 of the baseband unit 340 (S301).
  • the message receiving unit 304 notifies the received signal to the control unit 310 of the control unit 350 (S302).
  • the control unit 310 analyzes the received message.
  • the control unit 310 recognizes that the emergency mode is included in the SIB as a result of the message analysis.
  • the control unit 310 stores in the storage unit 311 the transition to the emergency mode (S303).
  • a mobile device that has entered emergency mode can transmit emergency information to a synchronized mobile device (relay mobile device) when an emergency request occurs (emergency mobile device).
  • a mobile device that has entered emergency mode can transfer emergency information to a BTS that is operating normally or a mobile device that has entered emergency mode (relay mobile device) (relay mobile device). .
  • FIG. 13 is a diagram for explaining the operation of a mobile device that wants to notify information urgently.
  • Control unit 310 of control unit 350 of the mobile device instructs emergency preamble transmission unit 306 of baseband unit 340 to transmit emergency information (S402).
  • the Emergency Preamble Transmitter creates an Emergency Preamble Channel and transmits the Emergency Preamble Channel to nearby mobile devices via the TX unit 340 of the RF unit 330 (S403).
  • the mobile device receives an emergency preamble channel AICH (Emergency Preamble Acknowledge Channel) from the nearby mobile device in emergency mode at RX section 301 of RF section 330.
  • the RX unit 301 transmits the received signal to the AICH detection unit 303 (S404).
  • the AIC H detection unit instructs the Emergency message transmission unit 307 to transmit an Emergency message (S405).
  • the emergency message transmission unit 307 creates an emergency message and transmits the emergency message to the mobile device that transmitted the AICH via the TX unit 302 of the RF unit 330. As a result, emergency information is transferred to other mobile devices.
  • AICH Emergency Preamble Acknowledge Channel
  • Uplink is Random Access Channel ⁇ ⁇
  • D ownlink is the same as Acquisition Indicator Channel ⁇
  • Emergency Preamble Channel is set.
  • FIG. 14 is a diagram showing a configuration of an Uplink Emergency Message slot format used in the emergency mode. This is the same as the configuration of the conventional PRACH (Physical Random Access Channel). Random access transmission consists of one or more preambles (4096 chips) and a message part (10 ms or 20 ms). The preamble includes an emergency message.
  • PRACH Physical Random Access Channel
  • FIG. 15 is a diagram showing a configuration of an Uplink Emergency Message transmission format used in the emergency mode. This is the same as the configuration of the radio frame of the random access message part.
  • the 10 ms long random access message part radio frame is divided into 15 slots (slot # 0 to slot # 15).
  • One slot consists of 2560 chips.
  • Each slot is composed of a data part and a control part.
  • the data part carries layer 2 information.
  • the control part carries layer 1 control information (pilot bit and TFCI).
  • the data part and the control part are IZQ multiplexed and transmitted in parallel.
  • a 20ms long message part consists of two consecutive message part radio frames.
  • FIG. 16 is a diagram illustrating a transmission format of a downlink emergency message used in the emergency mode. This is the same as the frame structure of AICH (Acquisition Indicator Channel).
  • AICH is a downlink physical channel used for random access control, and transmits Acquisition Indicator as a result of PRACH preamble reception.
  • AICH consists of 15 consecutive access slots (AS # 0 to AS # 14). Each access slot consists of 40 bits. The first 32 bits are the AI part, and the remaining 8 bits are not transmitted. [0062] ⁇ Operation of Relay Mobile Device>
  • FIG. 17 is a diagram for explaining the operation of the relay mobile device.
  • the relay mobile device transfers emergency information from the emergency mobile device to a normal radio base station (BTS) or another relay mobile device.
  • BTS radio base station
  • the relay mobile device 103 in emergency mode receives the emergency preamble from the emergency mobile device or another relay mobile device via the RX unit 301 of the RF unit 330 at the emergency preamble receiving unit (S501).
  • AI Electronicgency Preamble Acknowledge
  • Emergency Preamble is notified to the AIC H transmission unit 305 (S502).
  • AICH transmission section 305 Upon receipt of the emergency preamble, AICH transmission section 305 transmits an AICH (Emergency Preamble Acknowledge Channel) to the transmission source mobile station via TX section 302 of RF section 330 (S503). However, if a certain time has not elapsed since the transmission of AICH, AICH transmission section 305 does not perform processing. This is to guard against those that send Emergency Preamble continuously. The fixed time is defined by the system as a parameter.
  • relay mobile device 103 transmits AICH
  • an emergency message is transmitted from the mobile device that has received AICH.
  • the emergency message receiving unit 309 of the relay mobile device 103 receives the emergency message via the RX unit 301 of the RF unit 330 (S504).
  • the emergence message receiving unit 309 notifies the control unit 310 of the control unit 350 that the emergency message has been received (S505).
  • the control unit 310 determines whether or not its own mobile device 103 has power in the area of the radio base station in normal operation (S506).
  • control unit 310 checks the effective time of Emergency Massage. To do. When the emergency message is outside the valid time, the control unit 310 discards the emergency massage. When the emergency message is within the valid time, control unit 310 determines to transfer the emergency message to a nearby mobile device in emergency mode. The control unit 310 instructs the emergency preamble transmission unit 306 to transmit the emergency preamble (S507).
  • the emergency preamble transmission unit 306 transmits an emergency preamble to the nearby emergency mode mobile device via the TX unit 302 of the RF unit 330 (S508).
  • AI Electronicgency Acknowledge
  • the RX unit 301 of the RF unit 330 of the relay mobile device 103 receives the AI.
  • the RX unit 301 notifies AI (Emergency Preamble) to the AICH detection unit 303 (S509).
  • the AICH detection unit 303 instructs the Emergency message transmission unit 307 to transmit Emergency Mess age.
  • Emergency message sending unit 307 sends an emergency massage to the mobile device that sent AI via RX unit 301 of RF unit 330 (S511).
  • relay mobile station 103 When own mobile station 103 is located in the area of a radio base station in normal operation (when communication with a higher-level device is possible), relay mobile station 103 performs normal call processing, Connect the packet and send Emergency Massage to the destination through the radio base station. At this time, when the mobile device 103 is in a call, it uses the multi-call function to connect the packets and transmits an emergency massage to the destination through the radio base station.
  • FIG. 18 is a diagram for explaining the operation of a radio base station that has received emergency information (Emergency Massage) from a relay mobile device.
  • Emergency information Emergency Massage
  • the radio base station 101 in normal operation When the radio base station 101 in normal operation receives a call connection request from the relay mobile device 103, it notifies the call processing control unit 204 (S601). The call processing control unit 204 executes a connection sequence with the higher-level device via the IF unit 207.
  • the emergency mode when it is determined that the service of the area managed by the radio base station cannot be continued, the emergency mode can be notified to the mobile station located in this area.
  • a mobile device that has been notified of the emergency mode can transition to the emergency mode.
  • Mobile devices that have entered emergency mode can transmit emergency information and relay emergency information.
  • emergency information from a mobile device can be transmitted to the mobile communication network even in an area where service cannot be continued.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Même quand la communication avec une station de base devient impraticable, une unité mobile présente dans la zone de couverture radio de la station de base est capable d'échanger des données avec un réseau de communications mobiles. Ce système de communications mobiles comprend des stations de base radio et des terminaux radio. Chacune des stations de base radio comprend, d'une part une logique de détermination qui détermine si un service de radiocommunications peut être utilisé en continu, et d'autre part un module émetteur qui émet un signal en mode d'urgence aux terminaux radio présents dans la zone de couverture radio de la station de base radio lorsque la logique de détermination détermine que le service de radiocommunications ne peut pas être utilisé en continu. Chaque terminal radio comporte un premier module récepteur qui reçoit le signal en mode urgence émis par la station de base radio, un module d'établissement qui fait passer le mode communication en mode d'urgence lorsque le signal de mode d'urgence est reçu; un deuxième module récepteur qui reçoit l'information d'urgence lorsque le mode d'urgence est établi; et un premier module émetteur qui réachemine l'information d'urgence à une station de base radio différence de la station de base radio ayant émis le signal de mode d'urgence ou à un autre terminal radio passé en son mode d'urgence.
PCT/JP2006/318760 2006-09-21 2006-09-21 Station de base ratio, terminal radio, et système de communications mobiles Ceased WO2008035424A1 (fr)

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JP2008535242A JP4774440B2 (ja) 2006-09-21 2006-09-21 無線基地局、無線端末及び移動通信システム
PCT/JP2006/318760 WO2008035424A1 (fr) 2006-09-21 2006-09-21 Station de base ratio, terminal radio, et système de communications mobiles

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
JP2012100059A (ja) * 2010-11-02 2012-05-24 Fujitsu Ltd 無線通信路中継方法、無線基地局装置及び通信端末
JPWO2011118242A1 (ja) * 2010-03-23 2013-07-04 住友電気工業株式会社 基地局装置、端末装置、受信側基地局装置、及び、無線通信方法
JP5329727B1 (ja) * 2013-02-19 2013-10-30 ソフトバンクモバイル株式会社 通信システム
JP5537714B1 (ja) * 2013-07-24 2014-07-02 ソフトバンクモバイル株式会社 通信システム及びプログラム
CN103988567A (zh) * 2011-12-08 2014-08-13 交互数字专利控股公司 用于控制交叉链路建立的方法和设备
JP2014192618A (ja) * 2013-03-26 2014-10-06 Kyocera Corp 通信システムおよび通信制御方法
WO2015025348A1 (fr) * 2013-08-19 2015-02-26 富士通株式会社 Système de communication mobile, procédé de communication dans un système de communication mobile et appareils de terminal
JP2015122673A (ja) * 2013-12-24 2015-07-02 京セラ株式会社 ユーザ端末、方法、及びプロセッサ
JP2016005156A (ja) * 2014-06-18 2016-01-12 日本電気通信システム株式会社 通信システム、端末、方法、プログラム、無線基地局、通信中継方法、およびプログラム
US20220286833A1 (en) * 2021-03-03 2022-09-08 Charter Communications Operating, Llc Emergency communication over non-persistent peer-2-peer network

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