WO2012102547A2 - 정전 리포트를 전송 및 수신하는 방법과 이를 위한 장치 - Google Patents
정전 리포트를 전송 및 수신하는 방법과 이를 위한 장치 Download PDFInfo
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- WO2012102547A2 WO2012102547A2 PCT/KR2012/000596 KR2012000596W WO2012102547A2 WO 2012102547 A2 WO2012102547 A2 WO 2012102547A2 KR 2012000596 W KR2012000596 W KR 2012000596W WO 2012102547 A2 WO2012102547 A2 WO 2012102547A2
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- message
- power failure
- base station
- indicator
- report
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/50—Connection management for emergency connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to wireless communications, and more particularly, to a method and apparatus for transmitting and receiving a power outage report.
- Machine-to-machine communication refers to communication between the electronic device and the electronic device as it is. Broadly, it means wired or wireless communication between electronic devices or communication between a device controlled by a person and a machine. Recently, however, it is generally referring to wireless communication between an electronic device and an electronic device, that is, device-to-device performed without human involvement.
- M2M communication In the early 1990s, when the concept of M2M communication was first introduced, it was recognized as a concept of remote control or telematics, and the market itself was very limited. However, in the past few years, M2M communication has been rapidly gaining worldwide attention. Grew. In particular, intelligent metering that measures flow management, remote monitoring of machinery and equipment, operating hours on construction machinery and automatic measurement of heat or electricity usage in point-of-sales and security-related applications. It showed great influence in the field of (Smart Meter). M2M communication in the future will be utilized for more various purposes in connection with existing mobile communication and wireless high-speed Internet, or low-power communication solutions such as Wi-Fi and Zigbee, and will no longer be limited to the business-to-business market. It will be the foundation to expand into the market.
- M2M communication technology can be used in numerous devices and equipment such as automobiles, trucks, trains, containers, vending machines, gas tanks, and the like.
- An object of the present invention is to provide a method for transmitting a power outage report by the M2M device.
- Another object of the present invention is to provide a method for a base station to receive a power outage report.
- Another technical problem to be achieved in the present invention is to provide an M2M device for transmitting a power outage report.
- Another object of the present invention is to provide a base station apparatus for receiving a power outage report.
- a method of transmitting a power outage report by a machine to machine (M2M) device includes a predefined bandwidth request when a power failure occurs.
- Request, BR comprising the step of transmitting a first message including the index value, wherein the predefined BR index value is assigned to indicate that the power failure situation to the M2M device.
- the first message may be a message regarding a bandwidth request.
- the M2M device may be a device operating in a connected mode.
- the method further comprises receiving from the base station a second message comprising an indication as to whether the M2M device should stop the bandwidth request process, wherein the second message does not stop the bandwidth request process. If instructed, the M2M device may perform the remaining bandwidth request.
- the predefined BR index value may be assigned to a value corresponding to a specific value of a BR action field in a DSA (Dynamic Service Addition) process, and the specific value of the BR action field may be 0b11. .
- a method of transmitting a power outage report by a machine to machine (M2M) device may notify a occurrence of a power failure situation from a base station.
- Receiving a first message for instructing to suspend or postpone transmission of the power failure indicator for, based on the first message can hold and wait for transmission of the power failure indicator for a predetermined time period.
- the method includes receiving from the base station a second message comprising resource allocation information for transmitting the power failure indicator; And transmitting the power failure indicator through a corresponding resource based on the second message.
- the first message may be an AAI-RNG-ACK message, an AAI-RNG-RSP message, an AAI-M2M-PO-IND message, a non-user specific A-MAP IE, or a NUS A-MAP IE. , Extended NUS A-MAP IE, Superframe Header IE, or BR-ACK A-MAP IE Message.
- a method for receiving a power outage report of a machine to machine (M2M) device in a wireless communication system is defined in advance from an M2M device in which a power failure occurs. And receiving a first message including a predetermined bandwidth request (BR) index value, wherein the predefined BR index value may be allocated to indicate that a power failure situation has occurred to the M2M device. have.
- M2M machine to machine
- a machine to machine (M2M) device that transmits a power outage report in a wireless communication system according to the present invention includes a predefined bandwidth request when a power failure occurs.
- Request, BR includes a transmitter for transmitting a first message including the index value, the predefined BR index value may be assigned to indicate that the power failure situation to the M2M device.
- the M2M device may further include a receiver for receiving a second message from the base station, the second message including an indication of whether the M2M device should stop the bandwidth request process, wherein the second message stops the bandwidth request process. If not instructed, the M2M device may further include a processor for controlling to perform the remaining bandwidth request.
- a base station receiving a power outage report of a machine to machine (M2M) device in a wireless communication system is previously defined from an M2M device in which a power failure occurs.
- BR bandwidth request
- collision resolution between the M2M devices and the base station is prevented, which reduces unnecessary power consumption of the M2M devices and significantly increases the efficiency of system resources.
- FIG. 1 is a diagram for schematically explaining a device configuration such as an M2M device and a base station according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating an example for describing a process in which M2M devices perform communication with a base station when a power failure occurs.
- FIG. 3 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station in a situation where a power failure occurs.
- FIG. 4 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station in a situation where a power failure occurs.
- FIG. 5 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station when a power failure occurs.
- 6 and 7 are diagrams illustrating still another example for explaining a process in which M2M devices communicate with a base station when a power failure occurs.
- FIG. 8 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station when a power failure occurs.
- FIG. 9 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station when a power failure occurs.
- FIG. 10 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station in a situation in which a power failure occurs.
- a terminal collectively refers to a mobile or fixed user terminal device such as a user equipment (UE), a mobile station (MS), an advanced mobile station (AMS), a machine to machine (M2M) device, and the like.
- the base station collectively refers to any node of the network side that communicates with the terminal such as a Node B, an eNode B, a Base Station, and an Access Point (AP).
- a user equipment may receive information from a base station through downlink, and the terminal may also transmit information through uplink.
- Information transmitted or received by the terminal includes data and various control information, and various physical channels exist according to the type and purpose of information transmitted or received by the terminal.
- CDMA code division multiple access
- FDMA frequency division multiple access
- TDMA time division multiple access
- OFDMA orthogonal frequency division multiple access
- SC-FDMA single carrier frequency division multiple access
- CDMA may be implemented with a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000.
- TDMA may be implemented with wireless technologies such as Global System for Mobile communications (GSM) / General Packet Radio Service (GPRS) / Enhanced Data Rates for GSM Evolution (EDGE).
- GSM Global System for Mobile communications
- GPRS General Packet Radio Service
- EDGE Enhanced Data Rates for GSM Evolution
- OFDMA may be implemented in a wireless technology such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, Evolved UTRA (E-UTRA).
- UTRA is part of the Universal Mobile Telecommunications System (UMTS).
- 3rd Generation Partnership Project (3GPP) long term evolution (LTE) employs OFDMA in downlink and SC-FDMA in uplink as part of Evolved UMTS (E-UMTS) using E-UTRA.
- LTE-A Advanced is an evolution of 3GPP LTE.
- M2M device refers to a terminal capable of supporting communication of the M2M device as described above.
- An access service network for an M2M service is defined as an M2M ASN (M2M Access Service Network), and a network entity communicating with M2M devices is called an M2M server.
- the M2M server executes an M2M application and provides an M2M specific service for one or more M2M devices.
- An M2M feature is a feature of an M2M application, and one or more features may be needed to provide the application.
- An M2M device group refers to a group of M2M devices that share one or more features in common.
- M2M devices M2M communication devices, machine type communication (MTC) devices, etc.
- MTC machine type communication
- the types of device applications under discussion include (1) security, (2) public safety, (3) tracking and tracing, (4) payment, and (5) healthcare.
- M2M devices Another characteristic of M2M devices is low mobility or no mobility. Significantly less or no mobility means that M2M devices are stationary for a long time.
- An M2M communication system is a specific M2M with a fixed location, such as secured access and surveillance, public safety, payment, remote maintenance and control, metering, and so on. Mobility-related operations for the application can be simplified or optimized.
- M2M communication is applied to a wireless communication system (for example, IEEE 802.16e / m).
- a wireless communication system for example, IEEE 802.16e / m.
- the present invention is not limited thereto, and the embodiment of the present invention may be applied to other wireless communication systems such as 3GPP LTE system in the same manner.
- FIG. 1 is a diagram for schematically explaining a device configuration such as an M2M device and a base station according to an embodiment of the present invention.
- the M2M device 100 (or may be referred to as an M2M communication device, hereinafter referred to as an M2M device) and the base station 150 are RF units 110 and 160, processors 120 and 170, and optionally, respectively. Memory 130 and 180.
- each of the RF units 110 and 160 may include transmitters 111 and 161 and receivers 112 and 162.
- the transmitter 111 and the receiver 112 are configured to transmit and receive signals with the base station 150 and other M2M devices
- the processor 120 is the transmitter 111 and the receiver.
- the transmitter 111 and the receiver 112 may be configured to control a process of transmitting and receiving signals with other devices.
- the processor 120 may perform various types of processing on the signal to be transmitted and then transmit the signal to the transmitter 111, and may perform processing on the signal received by the receiver 112. If necessary, the processor 120 may store information included in the exchanged message in the memory 130. With such a structure, the M2M device 100 may perform the methods of the various embodiments described below.
- the M2M device 100 may include various additional configurations according to the device application type.
- the M2M device 100 may include an additional configuration for power measurement, and the like.
- the power measurement operation may be performed by the processor 120 illustrated in FIG. 1. May be controlled, or may be controlled by a separately configured processor (not shown).
- FIG. 1 illustrates an example in which communication is performed between the M2M device 100 and the base station 150, the M2M communication method according to the present invention may occur between M2M devices, and each of the devices is shown in FIG. 1.
- the method according to various embodiments described below may be performed in the same form as each device configuration shown in FIG.
- Transmitter 161 and receiver 162 of base station 150 are configured to transmit and receive signals with other base stations, M2M servers, and M2M devices, and processor 170 is functional with transmitter 161 and receiver 162. Connected to, the transmitter 161 and the receiver 162 may be configured to control the process of transmitting and receiving signals with other devices. In addition, the processor 170 may perform various processing on the signal to be transmitted and then transmit the signal to the transmitter 161, and may perform the processing on the signal received by the receiver 162. If necessary, the processor 170 may store information included in the exchanged message in the memory 130. With this structure, the base station 150 may perform the methods of the various embodiments described above.
- Processors 120 and 170 of each of the M2M device 110 and the base station 150 instruct (eg, control, coordinate, manage, etc.) operation at the M2M device 110 and the base station 150, respectively.
- Each of the processors 120 and 170 may be connected to memories 130 and 180 that store program codes and data.
- the memories 130 and 180 are coupled to the processors 120 and 170 to store operating systems, applications, and general files.
- the processors 120 and 170 may also be referred to as a controller, a microcontroller, a microprocessor, a microcomputer, or the like.
- the processors 120 and 170 may be implemented by hardware or firmware, software, or a combination thereof.
- ASICs application specific integrated circuits
- DSPs digital signal processors
- DSPDs digital signal processing devices
- PLDs programmable logic devices
- FPGAs Field programmable gate arrays
- firmware or software when implementing embodiments of the present invention using firmware or software, the firmware or software may be configured to include a module, a procedure, or a function for performing the functions or operations of the present invention, and to perform the present invention.
- Firmware or software configured to be may be included in the processors 120 and 170 or may be stored in the memories 130 and 180 to be driven by the processors 120 and 170.
- the idle mode refers to a paging group and a paging cycle approved by the base station through signaling between the terminal and the base station in order to save power of the terminal (including the M2M device).
- This mode is to operate paging offset. That is, even if the terminal roams a wireless link environment having a plurality of base stations over a wide area, a mechanism for periodically receiving a downlink broadcast message without registering with a specific base station is performed.
- Idle mode stops all normal operations as well as handovers (HOs) and adjusts only downlink synchronization to receive paging messages, which are broadcast messages, over a period of time. It is set.
- the paging message is a message instructing the paging action (paging action) to the terminal.
- paging operations include ranging, network reentry, and the like.
- the idle mode may be initiated by the terminal or initiated by the base station. That is, the terminal idles by transmitting a deregistration request message (for example, an AAI-DREG-REQ message) to the base station and receiving a deregistration response message (for example, an AAI-DREG-RSP) message from the base station in response thereto. You can enter the mode.
- the base station may enter the idle mode by transmitting an unsolicited deregistration response message or a deregistration command message (for example, an AAI-DREG-CMD message) to the terminal.
- Idle State or Idle Mode operation generally supports the transmission of downlink broadcast traffic periodically even when the UE moves in a radio link environment composed of multiple base stations, even if it is not registered to a specific base station. It refers to the action that makes.
- the terminal may transition to the idle state to save power.
- the terminal transitioning to the idle mode receives a broadcast message (eg, paging message) broadcasted by the base station during an available interval (AI) and transitions to the normal mode or remains idle. You can judge.
- a broadcast message eg, paging message
- the idle state can benefit the terminal by eliminating the active and general operational requirements associated with the handover.
- the idle state may limit the terminal activity to be scanned in discrete cycles, thereby saving power and operational resources used by the terminal.
- the idle state provides a simple and appropriate way to inform the terminal of downlink traffic pending, and removes the network interface and network handover (HO) traffic from the inactive terminal.
- the base station can benefit.
- Paging refers to a function of identifying a location (eg, any base station or a switching center) of a corresponding terminal when an incoming call occurs in mobile communication.
- a plurality of base stations supporting the idle state or the idle mode may belong to a specific paging group to configure a paging area.
- the paging group represents a logical group.
- the purpose of a paging group is to provide an adjacent coverage area that can be paged in downlink if there is traffic targeting the terminal.
- the paging group is preferably configured to meet the condition that a particular terminal is large enough to exist for most of the time in the same paging group, and that the paging load should be small enough to maintain an appropriate level.
- the paging group may include one or more base stations, and one base station may be included in one or more paging groups.
- Paging groups are defined in the management system. Paging groups can use paging group-action backbone network messages.
- the paging controller may manage a list of idle terminals and manage initial paging of all base stations belonging to a paging group by using a paging-announce message, which is one of backbone network messages.
- the present invention proposes various embodiments for reducing an unnecessary contention resolution process of an M2M device.
- Table 1 below shows information masking information on A-MAP IE in IEEE 802.16m system.
- A-MAP IE represents control information transmitted from the base station to the terminal in the IEEE 802.16m system.
- Table 2 shows a description of the masking code for 001 by the type indicator of Table 1.
- the masking code value (Decimal value) 1 is a value used to mask the BR-ACK A-MAP IE, and 2 to 128 mask the group resource allocation A-MAP IE. This is the value used to.
- Table 3 shows a description of the masking code of the type indicator of Table 1 for 010.
- a masking code value 4095 may be used to mask broadcast allocation A-MAP IE for multicast allocation.
- the M2M device may transmit to the base station through a power outage report indicator to inform the power failure situation. Connected mode where a power outage occurs The power outage contention BR stop indicator or ranging stop indicator is set before the M2M device issues a contention bandwidth request (contention BR) for power outage reports.
- the processor 120 of the M2M device may control to wait for polling for the power failure report from the base station for a specific time without performing the competing BR.
- the processor 120 of the M2M device does not immediately perform the contention BR and the base station for a specific time. Control to wait for polling for power outage reports. However, if the polling is not received for a specific time, the M2M device may be allocated resources through contention-based BR or ranging, and may report the power outage situation to the allocated resources. In contrast, when an M2M device having a power failure receives polling from the base station, power outage information may be transmitted to the base station as a corresponding resource.
- a base station When a base station receives a power outage report indicator from one or more M2M devices, the base station is referred to as a power outage contention BR stop indicator / ranging stop indicator (hereafter referred to as a PCS indicator, but limited to these names only). Can be sent to the M2M device. After the base station sends the PCS indicator may poll the terminals in the connected mode. At this time, both individual resource allocation or group resource allocation can be used. Power outage polling is possible in the same frame as well as in other frames.
- the PCS indicator used in the present invention indicates that the M2M devices in which the power failure has occurred may cause the base station to stop the random access (competitive BR or competitive ranging) in order to report the power failure or to delay the random access for a predetermined time. Indicates information transmitted to M2M devices that are out of power.
- These names are used as PCS indicators as an example for ease of understanding, and may be used as other names. For example, it may be referred to as a power outage random access deferment indicator (PRD indicator) or the like.
- a method of delivering the PCS indicator to the M2M device by the base station will be proposed in various ways depending on the timing and signaling method, which is not limited only to the example of the present invention.
- the signal received from the M2M device to send the PCS indicator to the base station may also be various depending on the time or method of transmitting the M2M device, which is also limited to the example of the present invention. It doesn't happen.
- the embodiments are separated by distinguishing the idle mode M2M device or the connected mode M2M device for easy understanding, but each method may be applied regardless of whether the M2M device is in the idle mode or the connected mode.
- the base station may transmit such a PCS indicator in a multicast form or a broadcast type in order to receive M2M devices having a power failure in the cell.
- the power failure report indicator transmitted by the M2M device and the PCS indicator transmitted by the base station may be classified as follows.
- the M2M device may transmit a power failure indicator indicating a power outage situation to the base station by using a specific ranging code or a ranging opportunity.
- the base station may allocate a specific ranging code for the power failure indicator, and when the power failure occurs, the M2M device may perform the power failure report by transmitting a designated ranging code assigned to the base station for this purpose. Meanwhile, the base station may allocate a dedicated ranging opportunity instead of the ranging code. Alternatively, the base station may assign a dedicated ranging code and ranging opportunity for power outage indicator purposes.
- the M2M device may transmit a power failure indicator to the base station using a ranging request message (eg, an AAI-RNG-REQ message).
- a ranging request message eg, an AAI-RNG-REQ message.
- the M2M device notifies the base station of the power outage by allocating and transmitting the ranging purpose of the ranging request message as power outage.
- a power failure indicator may be added so that the M2M device may transmit the power failure indicator to the base station.
- the M2M device may transmit a power failure report indicator to a base station using a 5-step dedicated BR preamble sequence.
- the base station allocates a BR preamble sequence for power failure, and the M2M device may transmit a power failure indicator to the base station using the BR preamble sequence for power failure when a power failure occurs.
- this may only apply to connected mode M2M devices.
- the M2M device may transmit a power failure indicator to the base station using a quick access message (ie, assigning a BR index for power failure) in a 3-step bandwidth request process.
- the base station may allocate a specific BR index for the use of the power failure indicator. This also applies to connected mode M2M devices only.
- the base station may transmit the PCS indicator to the M2M device using the AAI-RNG-ACK message in response to the CDMA ranging request during the initial ranging.
- the base station transmits the AAI-RNG-ACK message for the ranging code
- the base station includes the PCS indicator.
- the AAI-RNG-ACK message may be transmitted in the form of broadcast or multicast.
- the base station when the base station transmits a CDMA allocation MAP IE message to the M2M device, it may include the PCS indicator. At this time, the CDMA allocation MAP IE message may be transmitted in the form of broadcast or multicast.
- the base station when the base station receives the power failure indicator from the M2M device through the BR code of step 5 or the step 3 quick access message, the base station includes the PCS indicator in the BR-ACK A-MAP IE message in response to the M2M device You can also send it to.
- the BR-ACK A-MAP IE message is a message indicating the decoding state of the transmitted BR preamble sequence.
- the BR-ACK A-MAP IE message may be transmitted in the form of broadcast or multicast.
- the M2M device may transmit a ranging request message (eg, an AAI-RNG-REQ message) to the base station by including a power failure indicator indicating a power outage situation.
- a ranging request message eg, an AAI-RNG-REQ message
- the PCS indicator may be included in the AAI-RNG-RSP message and transmitted to the M2M device.
- the ranging response message may be transmitted in a broadcast or multicast type.
- the base station may use a new MAC message or a MAC header (using a signaling header or an extended header) including a PCS indicator.
- this new MAC message may be transmitted in broadcast or multicast type.
- the name of the new MAC message is named as an AAI-M2M-PO-IND message as an example, and a detailed description thereof will be described below.
- the base station may also include a superframe header (SFH) or a non-user specific A-MAP IE / NUS A-MAP IE / extended NUS A-MAP IE message.
- the PCS indicator may be transmitted to the M2M device by using a downlink control channel such as the above.
- the base station receives the power failure indicator from the M2M device as described above, the base station sends the PCS indicator to the M2M device through a superframe header, a NUS A-MAP IE message or an extended NUS A-MAP IE message in response. Can be.
- some message formats in the existing IEEE 802.16m system need modification. It is necessary to reserve a BR code and a ranging code for power outage reports for M2M devices operating in connected mode.
- the connected mode M2M device transmits an indicator for power failure report (for example, a BR code for power failure indicator) to the base station, and the M2M device operating in idle mode ranges for power failure report. You can send the code.
- FIG. 2 is a diagram illustrating an example for describing a process in which M2M devices perform communication with a base station when a power failure occurs.
- the base station may receive a power failure indicator or power failure report indicator from at least one M2M device (eg, M2M device N) among the M2M devices in which an unwanted power failure occurs, through a BR code or ranging code for power failure report. (S210).
- the processor 170 of the base station determines that an unwanted power failure occurs in one or more M2M devices in the cell, and the remaining M2M devices (eg, M2M device 1, M2M device) in the cell that did not send an unwanted power failure indicator.
- the PCS indicator may be transmitted to 2) (S220).
- the PCS indicator may be a blackout contention BR or ranging stop indicator and may be transmitted in a multicast or broadcast type.
- the M2M devices (eg, M2M device 1 and M2M device 2) that have received the PCS indicator from the base station delay the report on the power failure situation and wait to receive polling for the power failure report from the base station (S230). This wait can last for the time value of a particular timer.
- M2M devices for example, M2M device 1, M2M device 2
- M2M devices for example, M2M device 1, M2M device 2
- the power failure report may be transmitted to the base station through the corresponding resource allocated through the S250.
- the base station receives a power failure indicator or a power failure report indicator from at least one M2M device (for example, M2M device N) among undesired power failures through a BR code or ranging code for power failure report, etc.
- the processor 170 of the base station determines that an unwanted power failure has occurred in one or more M2M devices in the cell, and the processor 170 of the base station determines AAI-RNG- for the power failure report ranging code to reduce the collision resolution process.
- An ACK message can be sent.
- an AAI-RNG-ACK message including the PCS indicator may be broadcast or multicasted to the M2M device so that the M2M devices having the power failure may receive the PCS indicator.
- the base station may assign a multicast identifier (ID) for the PCS indicator.
- the base station may include a multicast ID in the corresponding MAP IE and transmit or mask and transmit a CRC (Cyclic Redundancy Check). Subsequently, the processor 120 of the M2M devices having an unwanted power failure will attempt to decode the AAI-RNG-ACK message using the corresponding multicast ID.
- Table 4 is a table for explaining the masking code for the type indicator 001.
- Table 4 Decimal Value Description 0 Used to mask Broadcast Assignment A-MAP IE One Used to mask BR-ACK A-MAP IE 2-128 Used to mask Group Resource Allocation A-MAP IE (group ID) 129 Used to mask Broadcast Assignment A-MAP IE for power outage random access stop indicator 130 -4095 Reserved
- the masking code values of Nos. 2 to 128 are broadcast assignment A-MAP IEs.
- the masking code value 1 is allocated for the BR-ACK A-MAP IE and the masking code value 0 is allocated for the group resource allocation A-MAP IE (GRA A-MAP IE). These are for general terminals used in human-to-human communication rather than M2M communication.
- the masking code value (or ID) of the 130th (ie, 129th) to 212th (ie, 211) may not be used for general terminals, and a part of the masking code, for example, the 129th
- the value may be assigned to the multicast ID used to mask the broadcast assignment A-MAP IE for the blackout random access stop indicator.
- Table 5 below shows a masking code for the type indicator 010.
- a masking code value of 4094 may be assigned to be used to mask a broadcast allocation A-MAP IE for a blackout random access stop indicator.
- the masking code value 4095 may be used to mask broadcast allocation A-MAP IE for multicast allocation.
- the base station may transmit an AAI-RNG-ACK message including a power outage random access stop indicator to the M2M device.
- the power failure random access stop indicator is an indicator that instructs the M2M device having the power failure to wait without immediately starting the random connection.
- the base station may, for example, mask a masking code value of 4094 with a CRC of the broadcast allocation A-MAP IE and transmit it to the M2M device.
- the processor 120 of the M2M device may decode the CRC of the broadcast allocation A-MAP IE and the masked masking code value so that the broadcast allocation A-MAP IE is for the power failure random access stop indicator.
- Table 6 below shows an example of the AAI-RNG-ACK message format.
- the base station may include the PCS indicator field in the AAI-RNG-ACK message and transmit to the M2M device. For example, if the PCS indicator value is 1, this indicates to defer or suspend competing BR or ranging of M2M devices having a power failure for a certain period of time.
- the processor 120 of the M2M device may decode the indication value of the PCS indicator and accordingly suspend and delay the contention BR or ranging transmission for a certain period of time.
- FIG. 3 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station in a situation where a power failure occurs.
- the base station may receive a power failure indicator or a power failure report indicator from the at least one M2M device (for example, M2M device N) among the M2M devices that have an unwanted power failure through a ranging code for a power failure report (S310). .
- the processor 170 of the base station determines that an unwanted power failure occurs in one or more M2M devices in the cell, and not only the M2M device N but the remaining M2M devices in the cell that did not send the power failure indicator (for example, M2M device 1).
- the PCS indicator may also be transmitted to the M2M device 2 through an AAI-RNG-ACK message (S320).
- the PCS indicator may be a ranging stop indicator or a blackout contention BR stop indicator, and may be transmitted in a multicast or broadcast type.
- Each processor 120 of the M2M devices (e.g., M2M device 1, M2M device 2, ..., M2M device N) attempts to decode the AAI-RNG-ACK message, before attempting random access.
- M2M device 1 e.g., M2M device 1, M2M device 2, ..., M2M device N
- M2M device N e.g., M2M device 1, M2M device 2, ..., M2M device N
- M2M devices (M2M device 1, M2M device 2) that have not yet reported the occurrence of the power failure
- M2M devices eg, M2M device 1, M2M device 2
- M2M devices (for example, M2M device 1, M2M device 2) that has not yet reported the occurrence of the power failure will transmit a power failure report including the power failure report to the base station through the corresponding resources allocated through polling. It may be (S350).
- the M2M device N transmitted through the BR code or the ranging code for the power failure report receives an AAI-RNG-ACK message from the base station (S320), and then a ranging process (or network) corresponding to itself. Entry or location update process) may be performed (S335).
- the M2M device may report it to the base station using a specific ranging code.
- the M2M device transmits a general ranging code to the base station and then a ranging request message (for example, , AAI-RNG-REQ message) may be reported to the base station the outage. That is, the M2M device may include an indicator in the AAI-RNG-REQ message indicating that an unwanted power outage has occurred (e.g., it may additionally assign a specific value in the ranging purpose field for this purpose). Can be sent to.
- the base station receives the AAI-RNG-REQ message from the M2M device and transmits an AAI-RNG-RSP message in response to the AAI-RNG-REQ message, where the PCS indicator may be included in the AAI-RNG-RSP message and transmitted.
- the base station may transmit the AAI-RNG-RSP message in a multicast or broadcast type so that all of the M2M devices having a power failure can receive it.
- the processor 120 of the M2M device in which an unwanted power failure occurs may control to delay or suspend performing the random access procedure for a specific period when receiving the PCS indicator from the base station before random access.
- Table 7 shows an example of a ranging response message (eg, AAI-RNG-RSP message) format including a PCS indicator.
- the base station may transmit to the M2M device including the PCS indicator in the AAI-RNG-RSP message. If the indicator value of the PCS indicator indicates that the competitive BR or random access procedure of the M2M devices in which the power outage has occurred is delayed or stopped for a specific period, the processor 120 of the M2M device specifies the competitive BR or random access procedure. You can control it to postpone or stop for a period of time.
- FIG. 4 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station in a situation where a power failure occurs.
- M2M devices for example, M2M device 1, M2M device 2, ..., M2M device N.
- the M2M device N having an unwanted power failure situation may transmit a general ranging code to the base station (S410), and may receive an AAI-RNG-ACK message from the base station (S420). Thereafter, the M2M device N may transmit a power outage report regarding an unwanted power outage generation to the base station through a ranging request message (eg, AAI-RNG-REQ message) (S430).
- a ranging request message eg, AAI-RNG-REQ message
- the processor 170 of the base station When the base station receives a power failure indicator or power failure report indicator for power failure report from at least one M2M device (for example, M2M device N) among the unsuccessful power failure (S430), the processor 170 of the base station is Determining that an unwanted power failure has occurred in one or more M2M devices in the cell, the PCS indicator is applied to not only M2M device N but also the remaining M2M devices (eg, M2M device 1, M2M device 2) in the cell that did not send the power failure indicator. As an example, it may be transmitted through an AAI-RNG-RSP message (S440).
- M2M device for example, M2M device N
- the remaining M2M devices eg, M2M device 1, M2M device 2
- the PCS indicator may be a power failure contention BR or ranging stop indicator, and may be transmitted in a multicast or broadcast type.
- a multicast ID for power outage may be reserved in advance, and the multicast ID may be reserved for M-M devices having a power outage. It may be used in the A-MAP IE for transmitting the AAI-RNG-RSP message to decode the MAP IE.
- the processor 120 of M2M devices that did not report a power outage report attempts to decode the AAI-RNG-RSP message, which includes a PCS indicator before attempting random access.
- the AAI-RNG-RSP message Upon receiving the AAI-RNG-RSP message, it may be controlled to delay performing the random access procedure for a specific time (S450).
- M2M devices (M2M device 1, M2M device 2) that have not yet reported the occurrence of the power failure
- M2M devices eg, M2M device 1, M2M device 2
- M2M devices (for example, M2M device 1, M2M device 2) that has not yet reported the occurrence of the power failure will transmit a power failure report including the power failure report to the base station through the corresponding resources allocated through polling. It may be (S470).
- the base station used the AAI-RNG-RSP message to transmit the PCS indicator, it can be distinguished from this message can be sent to the PCS indicator in the form of a new broadcast or multicast message.
- Table 8 shows a new M2M blackout indication message (eg, AAI-M2M-PO-IND message) including a PCS indicator.
- Table 8 Field Size Value / Description power outage contention BR / ranging stop (PCS) indicator One 1: indicates to postpone or stop a competing BR or random access procedure of M2M devices having a power outage for a certain period of time.
- PCS power outage contention BR / ranging stop
- the AAI-RNG-RSP message can be transmitted in the form of unicast or initial ranging without including the PCS indicator.
- This AAI-M2M-PO-IND message may be sent in the form of multicast / broadcast instead of a power outage indicator (AAI-RNG-RSP message), and as in the above example, the M2M device uses a ranging code.
- the base station may transmit the AAI_M2M-PO-IND including the PCS indicator to the M2M device, instead of the AAI-RNG-ACK message including the PCS indicator. In this case, there is an advantage that there is no need to modify the AAI-RNG-ACK message or AAI-RNG-RSP message.
- FIG. 5 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station when a power failure occurs.
- M2M devices for example, M2M device 1, M2M device 2, ..., M2M device N.
- the M2M device N may transmit a general ranging code to the base station (S510), and may receive an AAI-RNG-ACK message from the base station (S520). Thereafter, the M2M device N may transmit a power outage report regarding an unwanted power outage generation to the base station through a ranging request message (eg, an AAI-RNG-REQ message) (S530). In response to the ranging request message, the base station transmits the ranging response message to the M2M device N (S540).
- a ranging request message eg, an AAI-RNG-REQ message
- the processor 170 of the base station Determining that an unwanted power failure has occurred in one or more M2M devices in the cell, the PCS indicator is applied to not only M2M device N but also the remaining M2M devices (eg, M2M device 1, M2M device 2) in the cell that did not send the power failure indicator. As an example it can be transmitted through the AAI-M2M-PO-IND message (S550).
- the PCS indicator may be a power failure contention BR or ranging stop indicator, and may be transmitted in a multicast or broadcast type.
- the processor 120 of M2M devices (eg, M2M device 1 and M2M device 2) that did not report a power outage report attempts to decode the AAI-M2M-PO-IND message, before the PCS indicator attempts to access random access.
- the random access procedure may be controlled to be delayed or stopped for a specific time (S560).
- M2M devices M2M device 1 and M2M device 2
- M2M devices that have not yet reported a power failure occurrence
- the M2M device 1 and the M2M device 2 may transmit a power failure report including a power failure to the base station through a corresponding resource allocated through polling (S580).
- Non-user specific A-MAP IE or NUS A-MAP IE which is one of downlink control channels in IEEE 802.16m system, or extended non-user specific A-MAP IE A-MAP IE) (in this case, the extension flag of the NUS A-MAP IE is set to 1)
- the base station may transmit a PCS indicator to the M2M devices, and the processor 120 of the M2M device may transmit the NUS A-MAP.
- the PCS indicator When the PCS indicator is received through the IE or the extended non-NUS A-MAP IE, it may be controlled to delay or suspend the random access (ranging or contention BR) process for a specific period of time.
- the base station may transmit the PCS indicator to the M2M device through a broadcast channel (eg, a superframe header (SFH IE)) rather than a downlink control channel.
- a broadcast channel eg, a superframe header (SFH IE)
- 6 and 7 are diagrams illustrating still another example for explaining a process in which M2M devices communicate with a base station when a power failure occurs.
- step S650 the base station transmits the message through the NUS A-MAP IE or the extended non NUS A-MAP IE message. That is, there is a difference only in the message type for transmitting the PCS indicator.
- the base station transmits the PCS indicator through the AAI-M2M-PO-IND message in step S550, in this embodiment, the base station transmits the PCS indicator to the broadcast channel (eg, a superframe header (SFH IE) in step S750. There is a difference in transmitting to M2M device through)).
- the broadcast channel eg, a superframe header (SFH IE)
- FIG. 8 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station when a power failure occurs.
- M2M devices for example, M2M device 1, M2M device 2, ..., M2M device N.
- an M2M device operating in connected mode i.e., M2M device N
- M2M device N sends specific BR codes for power outage reports instead of ranging codes to alert the base station to an involuntary power outage situation. Can be informed (S810).
- the base station When receiving the BR code / indicator for the power failure report from the M2M device N, the base station includes the PCS indicator in the BR-ACK A-MAP IE message to transmit the BR code / indicator for the power failure report.
- Other M2M devices for example, M2M device 1 and M2M device 2 in the same cell may be transmitted (S820).
- the BR-ACK A-MAP IE message format may be as shown in Table 9 below. Table 9 below shows an example of a BR-ACK A-MAP IE message format.
- the BR-ACK A-MAP IE message may include a 1-bit PCS indicator.
- the M2M devices (M2M 1 and M2M device 2) that do not transmit the power failure report receive a BR-ACK A-MAP IE message including a PCS indicator from the base station before performing the random access procedure (S820), the M2M devices
- Each processor 120 of the M2M 1 and the M2M device 2 may delay or stop performing the random access process for a specific period of time and wait to receive an allocation of resources from the base station (S830).
- M2M devices M2M device 1 and M2M device 2
- M2M devices that have not yet reported a power failure occurrence
- the M2M device 1 and the M2M device 2 may transmit an outage report including a power outage to the base station through a corresponding resource allocated through polling (S850).
- the M2M device N transmitting the BR code for the power failure report may receive a BR-ACK A-MAP IE message from the base station (S820), and may perform a BR process corresponding to itself (S835). .
- the M2M devices include the indication value 1 of the PCS indicator (ie, indicating to delay or stop the competition BR or random access procedure of the M2M devices for a specific period) of the BR-ACK A-MAP IE message from the base station for a predetermined period of time. If the BR-ACK A-MAP IE message is not received, the random access procedure is performed.
- the PCS indicator ie, indicating to delay or stop the competition BR or random access procedure of the M2M devices for a specific period
- FIG. 9 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station when a power failure occurs.
- M2M devices for example, M2M device 1, M2M device 2, ..., M2M device N.
- the base station includes the PCS indicator in the BR-ACK A-MAP IE message, as well as the M2M devices N transmitting the BR code / indicator for the power failure report, as well as other M2M devices in the same cell as the corresponding M2M devices. (For example, M2M device 1, M2M device 2), but in step S920 of FIG. 9, the base station transmits the power failure report without including the PCS indicator in the BR-ACK A-MAP IE message. Send only to device N.
- the base station includes the PCS indicator in the NUS A-MAP IE, Extended NUS A-MAP IE, or broadcast channel (for example, superframe header (SFH)) in the same cell as well as M2M device N
- M2M devices for example, M2M device 1, M2M device 2
- the steps S940, S945, S950, and S960 are the same as the steps S830, S835, S840, and S850 of FIG. 8, respectively.
- the M2M device uses a three step BR process using a quick access message. Can alert you to unwanted power outages.
- the specific BR index includes the function of the power failure report.
- Table 10 shows an example of an AAI-DSA-REQ (Advanced Air Interface-Dynamic Service Addition-request) message including a BR index in a quick access message.
- AAI-DSA-REQ Advanced Air Interface-Dynamic Service Addition-request
- the AAI-DSA-REQ message may be a message initiated by the base station (BS-initiated) and transmitted to the M2M device.
- the AAI-DSA-REQ message may be a message that the M2M device exchanges between the base station and the M2M device before a power failure situation occurs.
- the AAI-DSA-REQ message may include a predefined BR index field and a BR action field.
- the base station may set the BR action field set to a value of 0b11 to indicate a power outage indicator, and when the BR action field value is 0b11, the corresponding BR index value may be determined in advance.
- the M2M device If the base station transmits the BR index value information corresponding to the BR action field value 0b11 determined to the M2M device through the AAI-DSA-REQ message, the M2M device relates to the power failure indicator through the AAI-DSA-REQ message. Information can be obtained.
- the BR action field value when the BR action field value is Ob11, it indicates that the predefined BR index included in the AAI-DSA-REQ message is for the power failure indicator. As such, one value of the BR action field for the BR index may be used as the power failure indicator. If the BR action field value is Ob10, the AAI-DSA-REQ message may further include a BR size field, where the BR size field indicates the number of bytes requested by the predefined BR index.
- the base station assigns a predefined BR index to a specific value of the BR action field in the DSA process for transmission of the power failure indicator of the M2M device.
- the M2M device uses the BR index defined for the power failure indicator on the system without DSA.
- the power failure indicator may be transmitted to the base station to inform the power failure situation.
- FIG. 10 is a diagram illustrating another example for explaining a process in which M2M devices communicate with a base station in a situation in which a power failure occurs.
- M2M devices for example, M2M device 1, M2M device 2, ..., M2M device N.
- the M2M device N may transmit a BR preamble sequence and a quick access message to the base station using the last value of the BR index (eg, 0b1111) (S1010).
- the last value of the BR index (eg 0b1111) is a predefined index for power outage reports.
- the base station may transmit a BR-ACK A-MAP IE message indicating the decoding state of the BR preamble sequence to the M2M device N (S1020).
- the processor 170 of the base station Determining that an unwanted power failure has occurred in one or more M2M devices in the cell, the PCS indicator is applied to not only M2M device N but also the remaining M2M devices (eg, M2M device 1, M2M device 2) in the cell that did not send the power failure indicator.
- the BR-ACK A-MAP IE may be transmitted through an AAI-M2M-PO-IND, a NUS A-MAP IE, an extended NUS A-MAP IE, or an SFH IE message (S1030).
- BR-ACK A-MAP IE AAI-M2M-PO-IND
- NUS A-MAP including PCS indicator before M2M devices (M2M 1, M2M device 2) that do not send outage report perform random access procedure.
- each processor 120 of the M2M devices (M2M 1 and M2M device 2) delays performing a random access procedure for a specific period of time. Alternatively, it may be controlled to stop waiting for the resource allocation from the base station (S1040).
- the M2M device N transmitting the BR code for the power failure report receives a BR-ACK A-MAP IE message from the base station (S1020) and then receives a PCS indicator instructing to perform random access (S1030).
- the M2M device N performs the remaining BR process.
- M2M devices M2M device 1 and M2M device 2
- M2M devices that have not yet reported the power failure occurrence
- the M2M device 1 and the M2M device 2 may transmit an outage report including a power outage to the base station through a corresponding resource allocated through polling (S1060).
- the M2M device may inform the base station of power outage through signaling defined in the IEEE 802. 16m system, and the base station may transmit the PCS indicator to the M2M devices having the blackout.
- the PCS indicator may be transmitted through a multicast or broadcast type (eg, broadcast CID or multicast CID).
- a three-step BR quick access message, AAI-RNG-ACK, BR-ACK A-MAP IE, SFH, NUS A-MAP IE which is a dedicated method of the IEEE 802.16m system. The method cannot be used.
- DCD may be used instead of SFH.
- an involuntary power outage of M2M devices may occur in the M2M system, and in this case, an unwanted power failure may occur in most M2M devices at a branch belonging to the M2M device.
- the corresponding M2M devices When there is a power outage, the corresponding M2M devices will report it to the base station at the same time, which increases the possibility of contention due to a large ranging process in the M2M devices in idle mode. M2M devices in (connected mode) are more likely to compete in the bandwidth request process.
- collision resolution between the M2M devices and the base station is prevented, which reduces unnecessary power consumption and significantly increases the efficiency of system resources. Can be.
- Methods for transmitting and receiving a power outage report and apparatus therefor are industrially available in various communication systems such as 3GPP LTE, LTE-A, IEEE 802, and the like.
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Abstract
Description
Decimal Value | Description |
0 | Used to mask Broadcast Assignment A-MAP IE |
1 | Used to mask BR-ACK A-MAP IE |
2-128 | Used to mask Group Resource Allocation A-MAP IE (group ID) |
129 | Used to mask Broadcast Assignment A-MAP IE for power outage random access stop indicator |
130 -4095 | Reserved |
Decimal Value | Description |
4094 | Used to mask Broadcast Assignment A-MAP IE for power outage random access stop indicator |
4095 | Used to mask Broadcast Assignment A-MAP IE for multicast assignment |
others | Reserved |
Field | Size | Value/Description |
If (transmitted in a DL resourceallocated by Broadcast assignmentA-MAP IE) { | ||
power outage contention BR/ranging stop (PCS) indicator | 1 | 1: 정전(Power outage)가 발생한 M2M 기기들의 경쟁 BR 또는 임의접속 과정을 특정 기간 동안 연기하거나 멈추는 것을 지시. |
} else if (transmitted in a DLresource allocated by DL basicassignment A-MAP IE) { |
Field | Size | Value/Description |
power outage contention BR/ranging stop (PCS) indicator | 1 | 1: 정전(Power outage)가 발생한 M2M 기기들의 경쟁 BR 또는 임의접속 과정을 특정 기간 동안 연기하거나 멈추는 것을 지시. |
Field | Size | Value/Description |
power outage contention BR/ranging stop (PCS) indicator | 1 | 1: 정전(Power outage)가 발생한 M2M 기기들의 경쟁 BR 또는 임의접속 과정을 특정 기간 동안 연기하거나 멈추는 것을 지시. |
Syntax | Size | Notes |
BR-ACK_A-MAP_ IE() { | ||
A-MAP IE Type | 4 | BR-ACK A-MAP IE |
.. | ||
power outage contention BR/ranging stop (PCS) indicator | 1 | 1: 정전(Power outage)가 발생한 M2M 기기들의 경쟁 BR 또는 임의접속 과정을 특정 기간 동안 연기하거나 멈추는 것을 지시. |
Field | Size | Value/Description |
For(i=0; i<N-Predefined-BR indices; i++) { | The mapping of predefined BR index used in quick access message to BR size and BR actions N-Predefined-BR-indices is the number of predefined BR indices [1..15] | |
Predefined BR index | 4 | Predefined BR index |
BR action | 2 | 0b00: ertPS service flow requests to resume to maximum sustained rate 0b01: aGP service flow requests to switch to Primary QoS parameters 0b10: BR 0b11: Power outage indicator |
If(BR action == 0b10) { | ||
BR size | 11 | Number of bytes requested by the predefined BR index |
} | ||
} | ||
Claims (17)
- 무선통신 시스템에서 M2M(Machine to Machine) 기기가 정전(power outage) 리포트를 전송하는 방법에 있어서,정전 상황이 발생한 경우 사전에 정의된 대역폭 요청(Bandwidth Request, BR) 인덱스값을 포함하는 제 1 메시지를 기지국으로 전송하는 단계를 포함하되,상기 사전에 정의된 BR 인덱스 값은 상기 M2M 기기에게 정전 상황이 발생한 것을 지시하기 위해 할당된 것을 특징으로 하는 M2M 기기의 정전 리포트 전송 방법.
- 제 1항에 있어서,상기 제 1 메시지는 대역폭 요청에 관한 메시지인 것을 특징으로 하는 M2M 기기의 정전 리포트 전송 방법.
- 제 2항에 있어서,상기 M2M 기기는 연결모드(connected mode) 상태에서 동작중인 기기인 것을 특징으로 하는 M2M 기기의 정전 리포트 전송 방법.
- 제 1항에 있어서,상기 기지국으로부터 상기 M2M 기기가 대역폭 요청 과정을 중지해야 하는지 여부에 관한 지시를 포함하는 제 2 메시지를 수신하는 단계를 더 포함하는, M2M 기기의 정전 리포트 전송 방법.
- 제 4항에 있어서,상기 제 2 메시지가 상기 대역폭 요청 과정을 중지하지 말 것을 지시하는 경우, 상기 M2M 기기는 나머지 대역폭 요청을 수행하는 것을 특징으로 하는 M2M 기기의 정전 리포트 전송 방법.
- 제 1항에 있어서,상기 사전에 정의된 BR 인덱스 값은 DSA(Dynamic Service Addition) 수행 과정에서 BR 액션(action) 필드의 특정 값에 대응되는 값으로 할당된 것을 특징으로 하는 M2M 기기의 정전 리포트 전송 방법.
- 제 6항에 있어서,상기 BR 액션 필드의 특정값은 0b11인 것을 특징으로 하는 M2M 기기의 정전 리포트 전송 방법.
- 무선통신 시스템에서 M2M(Machine to Machine) 기기가 정전(power outage) 리포트를 전송하는 방법에 있어서,기지국으로부터 정전 상황의 발생을 알리기 위한 정전 지시자 전송을 중지 또는 연기할 것을 지시하는 제 1 메시지를 수신하는 단계를 포함하되,상기 제 1 메시지에 기초하여 사전에 설정된 시간구간 동안 정전 지시자 전송을 보류하고 대기하는 것을 특징으로 하는 M2M 기기의 정전 리포트 전송 방법.
- 제 8항에 있어서,상기 기지국으로부터 상기 정전 지시자 전송을 자원 할당 정보를 포함하는 제 2 메시지를 수신하는 단계; 및상기 제 2 메시지에 기초하여 해당 자원을 통해 상기 정전 지시자를 전송하는 단계를 더 포함하는 것을 특징으로 하는 M2M 기기의 정전 리포트 전송 방법.
- 제 8항에 있어서,상기 제 1 메시지는 AAI-RNG-ACK 메시지, AAI-RNG-RSP 메시지, AAI-M2M-PO-IND 메시지, 비 사용자 특정 A-MAP IE(Non User Specific A-MAP IE, NUS A-MAP IE), 확장 NUS A-MAP IE, 수퍼프레임 헤더 IE, 또는 BR-ACK A-MAP IE 메시지인 것을 특징으로 하는 M2M 기기의 정전 리포트 전송 방법.
- 무선통신 시스템에서 기지국이 M2M(Machine to Machine) 기기의 정전(power outage) 리포트를 수신하는 방법에 있어서,정전 상황이 발생한 M2M 기기로부터 사전에 정의된 대역폭 요청(Bandwidth Request, BR) 인덱스값을 포함하는 제 1 메시지를 수신하는 단계를 포함하되,상기 사전에 정의된 BR 인덱스 값은 상기 M2M 기기에게 정전 상황이 발생한 것을 지시하기 위해 할당한 것을 특징으로 하는 기지국의 정전 리포트 수신 방법.
- 제 11항에 있어서,상기 제 1 메시지는 대역폭 요청에 관한 메시지인 것을 특징으로 하는 기지국의 정전 리포트 수신 방법.
- 제 11항에 있어서,상기 M2M 기기로 상기 M2M 기기가 대역폭 요청 과정을 중지해야 하는지 여부에 관한 지시를 포함하는 제 2 메시지를 전송하는 단계를 더 포함하는 것을 특징으로 하는 기지국의 정전 리포트 수신 방법.
- 무선통신 시스템에서 정전(power outage) 리포트를 전송하는 M2M(Machine to Machine) 기기에 있어서,정전 상황이 발생한 경우 사전에 정의된 대역폭 요청(Bandwidth Request, BR) 인덱스값을 포함하는 제 1 메시지를 기지국으로 전송하는 송신기를 포함하되,상기 사전에 정의된 BR 인덱스 값은 상기 M2M 기기에게 정전 상황이 발생한 것을 지시하기 위해 할당된 것을 특징으로 하는 M2M 기기.
- 제 14항에 있어서,상기 기지국으로부터 상기 M2M 기기가 대역폭 요청 과정을 중지해야 하는지 여부에 관한 지시를 포함하는 제 2 메시지를 수신하는 수신기를 더 포함하는, M2M 기기.
- 제 15항에 있어서,상기 제 2 메시지가 상기 대역폭 요청 과정을 중지하지 말 것을 지시하는 경우, 상기 M2M 기기는 나머지 대역폭 요청을 수행하도록 제어하는 프로세서를 더 포함하는, M2M 기기.
- 무선통신 시스템에서 M2M(Machine to Machine) 기기의 정전(power outage) 리포트를 수신하는 기지국에 있어서,정전 상황이 발생한 M2M 기기로부터 사전에 정의된 대역폭 요청(Bandwidth Request, BR) 인덱스값을 포함하는 제 1 메시지를 수신하는 수신기를 포함하되,상기 사전에 정의된 BR 인덱스 값은 상기 M2M 기기에게 정전 상황이 발생한 것을 지시하기 위해 할당한 것을 특징으로 하는 기지국.
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CN201280012415.XA CN103430463B (zh) | 2011-01-25 | 2012-01-25 | 发送和接收断电报告的方法及用于该方法的装置 |
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CN103430463B (zh) | 2016-07-06 |
KR20140012645A (ko) | 2014-02-03 |
US9319894B2 (en) | 2016-04-19 |
WO2012102547A3 (ko) | 2012-12-20 |
CN103430463A (zh) | 2013-12-04 |
US20130315074A1 (en) | 2013-11-28 |
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