WO2010054378A1 - Procédé et appareil pour l’exécution d’un système d’alerte destiné au public - Google Patents

Procédé et appareil pour l’exécution d’un système d’alerte destiné au public Download PDF

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Publication number
WO2010054378A1
WO2010054378A1 PCT/US2009/063882 US2009063882W WO2010054378A1 WO 2010054378 A1 WO2010054378 A1 WO 2010054378A1 US 2009063882 W US2009063882 W US 2009063882W WO 2010054378 A1 WO2010054378 A1 WO 2010054378A1
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WIPO (PCT)
Prior art keywords
pws
information
wtru
notification information
field
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PCT/US2009/063882
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English (en)
Inventor
Behrouz Aghili
Marian Rudolf
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Interdigital Patent Holdings, Inc.
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 Interdigital Patent Holdings, Inc. filed Critical Interdigital Patent Holdings, Inc.
Publication of WO2010054378A1 publication Critical patent/WO2010054378A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Definitions

  • the subject matter disclosed relates to wireless communications.
  • PWS Public Warning Systems
  • AM, FM, and the like conventional radio
  • TV television
  • EWS Emergency Broadcast channels to urgently announce the occurrence of events that pose significant threats in terms of life or property within a certain geographical area.
  • wireless networks e.g., cellular networks
  • the objectives of PWS may pose challenges for wireless networks in terms of delivery guarantees, notification timeliness, information accuracy and the amount of detail required to deliver useful PWS messages to users.
  • a wireless device that is currently receiving or transmitting data over a wireless network may not be able to receive other information, such as a PWS message, until the device is finished receiving or transmitting the data.
  • the wireless device may not receive the PWS message from the wireless network at all (if the wireless network has since stopped transmitting the PWS message) or may receive the PWS message after the emergency has already occurred.
  • the wireless device may be operating in a low-power mode (e.g., an idle mode), which may generally be used to conserve battery power.
  • a low-power mode e.g., an idle mode
  • the wireless device may reduce its power consumption by listening for messages at the beginning or end of periodic time intervals. These time intervals may reach up to several seconds or more and any reduction in the time intervals may have a negative impact on battery life and stand-by times.
  • the wireless network may transmit the PWS message more than once to improve the probability that a significant portion of the wireless devices (including those currently in an idle mode) will receive the PWS message at some point in time.
  • the wireless network may repeatedly transmit the PWS message over a period lasting up to several tens of seconds in duration. For many emergency events (such as earthquakes or tornados), warnings may be issued only a few seconds before the actual occurrence of the event. Consequently, at least some of the wireless devices may not receive the PWS message until after the occurrence of the event.
  • An additional challenge for wireless networks may include the limited size of the network's payload data. Specifically, the amount information in a PWS message needed to effectively convey the type, scope, and/or degree of an emergency may be greater than the size of the available payload data that can be transmitted by the wireless network. Further, signals transmitted by the wireless network may include a number of overhead fields, and may carry large amounts of control information and/or information related to the translation of message contents to different languages. These additional overhead fields and control information may further limit the amount of space available to carry PWS information.
  • Figure 1 is a flow diagram of a PWS based on WTRU mode
  • Figure 2 is a signal flow diagram illustrating the use of System
  • Figure 3 is an illustration of the use of paging resources to convey
  • Figure 4 is a flow diagram of a method for using paging resources to convey PWS information
  • FIG. 5 shows a Fast Associated Control Channel (FACCH) frame for carrying PWS information
  • Figure 6 is a detailed view of the address field in the FACCH frame of Figure 5;
  • Figure 7 is a detailed view of the length indicator field in the
  • Figure 8 shows a method for using the FACCH frame of Figure 6 to transmit PWS data
  • Figure 9 shows a method wherein a WTRU terminates a resource assignment procedure in response to receiving a PWS message
  • FIG. 10 is a block diagram of a WTRU and a base station configured to implement the methods and features described with reference to
  • a wireless transmit/receive unit comprises a receiver and a processor.
  • the receiver is configured to receive a Paging Request message that includes PWS notification information
  • the processor is configured to decode the PWS notification information.
  • a base station comprises a transmitter configured to transmit a Paging Request message that includes public warning system (PWS) notification information.
  • a WTRU begins a procedure for the assignment of a radio resource for the WTRU. The WTRU may monitor a control channel for an assignment message related to the radio resource. In response to receiving a PWS notification, the WTRU may terminate the resource assignment procedure.
  • wireless transmit/receive unit includes but is not limited to a user equipment (UE), a mobile station, a fixed or mobile subscriber unit, a pager, a cellular telephone, a personal digital assistant (PDA), a computer, or any other type of device capable of operating in a wireless environment.
  • UE user equipment
  • PDA personal digital assistant
  • computer or any other type of device capable of operating in a wireless environment.
  • base station includes but is not limited to a Node-B, a wireless router, a site controller, an access point (AP), or any other type of interfacing device capable of operating in a wireless environment.
  • Cellular technologies that may be used for the purpose of disseminating PWS information include but are not limited to networks based on technologies such as Global System for Mobile Communications (GSM), Enhanced Data Rates for GSM Evolution (EDGE) Radio Access Network (GERAN), General Packet Radio Service (GPRS), Enhanced GPRS (EGRPS), and EGPRS-2.
  • GSM Global System for Mobile Communications
  • EDGE Enhanced Data Rates for GSM Evolution
  • GPRS General Packet Radio Service
  • GRPS Enhanced GPRS
  • EGPRS-2 Enhanced GPRS
  • EGPRS-2 Enhanced GPRS-2
  • EGPRS-2 Enhanced GPRS
  • EGPRS-2 Enhanced GPRS
  • EGPRS-2 Enhanced GPRS
  • EGPRS-2 Enhanced GPRS
  • EGPRS-2 Enhanced GPRS
  • EGPRS-2 Enhanced GPRS
  • EGPRS-2 Enhanced GPRS
  • EGPRS-2 Enhanced GPRS
  • EGPRS Earthquake Tsunami
  • a WTRU may be attached to both a circuit switched (CS) (GSM) domain and a packet switched (PS) (GPRS) domain at the same time.
  • the WTRU has a Radio Resource Control (RRC) state.
  • RRC Radio Resource Control
  • the WTRU may be either in RRC idle mode or RRC dedicated mode.
  • the WTRU may be in either RRC packet idle mode or RRC packet transfer mode.
  • the modes of operation in the CS and PS domains are generally independent, which means that a WTRU may be in CS dedicated mode and PS packet idle mode at the same time.
  • GERAN ETWS is an example of a primary/secondary PWS notification system.
  • a primary notification may be sent first, and the primary notification may be followed by a secondary notification containing additional information.
  • the secondary notification may include information that is specific to a WTRU or group of WTRUs based on, for example, geographic location, proximity to a specific event, and other information.
  • the primary notification may be time critical, while the secondary notification may lag slightly.
  • FIG. 1 shows an example method for the transmission and reception of PWS information in a primary/secondary notification system.
  • An emergency event may trigger 110 the public warning system.
  • a primary notification may be transmitted 130 by a base station to the WTRU.
  • the primary notification may be transmitted 130 to the WTRU via a system information message broadcast by the base station, via paging resources, or via Cell Broadcast System (CBS) messaging.
  • CBS Cell Broadcast System
  • the WTRU may include an active radio resource.
  • This active resource may allow a primary PWS notification to be sent 150 via dedicated messaging or using short messaging service (SMS) messaging.
  • SMS short messaging service
  • a primary notification maybe sent 170 using paging resources or it may be included in an assignment message.
  • a secondary notification message may then be sent 180 at an appropriate time containing additional information regarding the emergency situation.
  • a new field or Information Element may be added to the System Information (or Packet System Information) message(s) indicating System Information messages will be used for broadcasting PWS information. Subsequently transmitted System Information messages may then be used for communicating both primary notifications and secondary notifications. Additionally, upon an emergency event that triggers the PWS, the base station may use the remaining resources in a multi-frame for sending the warning messages (resources that are typically used for sending other System Information messages and/or the assignment/paging messages).
  • the network may use all of the blocks that are reserved for Common Control Channels (CCCH) on the broadcast control channel (BCCH ) carrier.
  • CCCH Common Control Channels
  • BCCH broadcast control channel
  • PCCH packet common control channel
  • the network may send the notification for a sufficiently long period of time in order to comply with current technical requirements. For example, a PWS primary notification maybe delivered over a four second time period. Since various WTRUs operating in a given geographic region will likely have differing DRX schedules, this time period may ensure the PWS primary notification is received by all WTRUs.
  • a signal flow diagram 200 illustrates use of
  • a base station 210 serves a plurality of WTRUs, 220i, 22ON.
  • a first System Information message 230 may be broadcast to the plurality of WTRUs, 220i, 22ON, and may include an indication of PWS support by the base station 210.
  • the base station 210 may broadcast another System Information message 240 to the plurality of WTRUs, 220i, 22ON, that includes a primary notification of the emergency.
  • the System Information message 240 may also include the indication of PWS support as in System Information message 230.
  • a WTRU may be preconfigured with various PWS messages or components of PWS messages that correspond to particular emergency categories and/or actions.
  • This preconfigured PWS information may include emergency category, action codes, immediacy of emergency event, location of emergency event, and/or other PWS data fields.
  • This preconfigured information may be stored in the WTRU in any appropriate storage medium, such as a subscriber identity module (SIM), and may be stored in any appropriate structure, such as a look-up table.
  • SIM subscriber identity module
  • Table 1 illustrates an example set of codes and corresponding emergency situations. The code points allow operator definable emergency descriptions that provide users a great deal of information while utilizing minimal data capacity in over-the-air messaging.
  • Table 2 below shows another example of preconfigured information indicating the duration of a given emergency event.
  • the network may send a System Information message containing short code(s) and/or type field(s) corresponding to full PWS notification messages as described above.
  • the WTRU may then receive the message, decode the short code(s) and then perform a look-up procedure of the preconfigured PWS information to determine the actual corresponding PWS message and/or action and display it to the user in a manner appropriate to the capabilities of a particular WTRU.
  • the WTRU may also take corresponding actions (such as pre-empting ongoing voice calls, and the like).
  • This method may be independent of the actual delivery mechanism used by the network and therefore may apply to dedicated PWS notification messaging services and other types of messaging services such as Paging, short message service (SMS), Cell Broadcast System (CBS), that will be described below in greater detail.
  • Paging short message service
  • SMS Short message service
  • CBS Cell Broadcast System
  • the content of the PWS messages may alternatively be compressed using approaches such as, for example, Huffmann coding, symbol codes, stream codes, integer codes, and the like.
  • Use of these coding techniques includes the exchange of "code tables" or probability tables that are similar in principle to the preconfigured PWS information as described above.
  • preconfigured PWS information may be stored on a Universal Telecommunications System (UMTS) subscriber identity module
  • UMTS Universal Telecommunications System
  • USB Universal Integrated Circuit Card
  • UICC Universal Integrated Circuit Card
  • the base station may transmit PWS configuration information using any one of or combination of an Internet protocol (IP) -based server using configuration protocols and over-the-air messaging, Open Mobile IP (IP) -based server using configuration protocols and over-the-air messaging, Open Mobile IP (IP) -based server using configuration protocols and over-the-air messaging, Open Mobile IP (IP) -based server using configuration protocols and over-the-air messaging, Open Mobile IP (IP) -based server using configuration protocols and over-the-air messaging, Open Mobile IP
  • OMA radio resource control
  • NAS non-access stratum
  • WTRU firmware updates over-the-air or through proprietary means such as universal serial bus (USB) and the like.
  • a WTRU may be preconfigured with code points that allow for multi-lingual support of PWS messaging.
  • the lookup table may contain multiple language codes for each PWS code or component. Alternatively, there may be more than one stored entry in the look-up table(s) corresponding to a given PWS or component code. This may be desirable for operators in regions where multiple languages are commonly spoken.
  • CBS messaging may also be used for disseminating PWS messaging to WTRUs.
  • a base station may indicate to an associated WTRU that CBS is "on" in the cell.
  • the base station may include primary and/or secondary notification messages in extensions to one or more CBS messages. Alternatively or additionally, one or more dedicated CBS messages for communicating primary and/or secondary notification messages may be used.
  • the WTRU may then decode the indicated Cell Broadcast Channel (CBCH) and receive the PWS information.
  • CBCH Cell Broadcast Channel
  • PWS information may be disseminated via paging resources to WTRUs in GSM idle mode and GPRS packet idle mode.
  • the base station may use paging channels to send a primary PWS notification.
  • the base station may transmit the paging messages over a subset of or all of the available paging channels.
  • the base station may transmit the paging messages over the subset of or all of the paging channels for a period of time.
  • the base station may also duplicate the transmission of the primary notification to ensure that all WTRUs receive it.
  • the duplication may help a WTRU to receive the primary notification in any order.
  • a WTRU may decode the message to obtain the PWS information contained therein.
  • the WTRU then may respond to the PWS information by indicating to a user that PWS information has been received. This may include, for example, displaying an alert message on a user interface or playing an alert sound.
  • a displayed alert message may include, for example, a textual and/or graphical representation of the PWS information.
  • Different paging messages may be used to transmit PWS information to a WTRU in GSM Radio Resource Control (RRC) idle mode and GPRS packet idle mode.
  • RRC Radio Resource Control
  • primary and/or secondary PWS notification messages may be included in a single Paging Request or single Packet Paging Request message.
  • a primary and/or secondary notification message may be spread throughout two or more Paging Request messages or two or more Packet Paging Request messages, or throughout a combination of at least one Paging Request message and at least one Packet Packing Request message.
  • a plurality of WTRUs 310I...310N are in a
  • base station 320 transmits a PWS page message 330 using paging channels available to base station 320 for a period of time long enough to ensure that all WTRUs in a DRX mode receive the PWS page message 330.
  • a method 400 for transmitting PWS information via paging resources begins with an emergency event that triggers 410 the PWS.
  • a base station may analyze 420 DRX cycles of all associated WTRUs. The base station may then determine 430 the time period that would facilitate reception of the PWS paging message by all WTRUs associated with the base station.
  • the determined time period may be based on one or more parameters such as, for example, the length of the DRX cycle, a paging period length, the number of frames or multiframes sent in a paging period, an average of the number of frames or multiframes sent in a paging period, the number of WTRUs currently in DRX mode, or one or more parameter analyzed 420 by the base station related to WTRU DRX cycles.
  • the base station then transmits 440 a PWS primary notification over all paging channels for the determined time period so that all WTRUs associated with the base station receive the PWS paging message, even those WTRUs in DRX modes of operation.
  • a WTRU is in GSM RRC dedicated mode or
  • the WTRU may have either a stand-alone Dedicated Control Channel (SDCCH), traffic channel (TCH), or a GPRS radio resource which is called a Temporary block Flow (TBF).
  • SDCCH Stand-alone Dedicated Control Channel
  • TCF Traffic channel
  • PWS information may be transmitted directly to the WTRU using these dedicated resources.
  • a base station may send a primary notification message to the WTRU using these dedicated resources.
  • the TCH may be accompanied by two control channels for signaling purposes, the Slow Associated Control Channel (SACCH) and the Fast Associated Control Channel (FACCH).
  • the FACCH may be used in "stealing mode", which is a well known concept in GSM systems and refers to the FACCH stealing from TCH resources in order to convey rapid and time sensitive signaling messages. It is noted that this "stealing mode" may also be used when a WTRU is in dual transfer mode (DTM), as DTM operation includes the use of a TCH.
  • DTM dual transfer mode
  • the actual delivery of the notification may be accomplished by, for example, modifying an existing message or introducing a new message that is understood by the ETWS/PWS capable WTRUs.
  • the base station may transmit a new Radio Link Control /Medium Access Control (RLC/MAC) Control Block containing the primary PWS notification.
  • RLC/MAC Radio Link Control /Medium Access Control
  • This message may be read by all WTRUs that are multiplexed on the same Packet Data Channel (PDCH).
  • PDCH Packet Data Channel
  • the base station may repeat the transmission of the RLC/MAC message over several radio blocks.
  • the actual delivery of the notification may be accomplished by, for example, modifying an existing message or introducing a new message that is understood by the ETWS/PWS capable WTRUs.
  • SMS messaging may be used to transmit PWS notifications to a WTRU in GSM dedicated mode or GPRS packet transfer mode.
  • SMS messaging may be received by the WTRU from the base station over FACCH or SDCCH resources.
  • the SMS messages for the WTRU in GSM dedicated mode, are normally sent over the SACCH.
  • the base station may first send a primary notification in a Control Block including a new RLC/MAC message to the WTRU.
  • the WTRU will ignore any downlink (DL) identity (such as DL temporary block flow (TBF)) if included in the radio block header of the following RLC/MAC data blocks.
  • the WTRU will instead decode the blocks to obtain any additional PWS information.
  • the base station may also use a distribution type message (such as a broadcast message) that does not include any particular identity in the header.
  • a FACCH frame 500 for carrying PWS information may include an address field 512, control field 514, length indicator field 516, information field 518, and fill bits 520.
  • the address field 512, control field 514, and length indicator field 516 may be one octet in length each.
  • the information field 518 may be a variable number of octets in length.
  • the fill bits 520 may be used to pad the FACCH frame 500 out to a standard size.
  • Figure 6 shows a detailed view of the contents of the address field
  • the address field 512 may include eight bits. Bit 1 of the address field 512 (shown furthest to the right) maybe an extended address (EA) bit 602. Bit two of the address field 512 may be a command/response (C/R) bit 604. Bits three to five may be service access point identifier (SAPI) bits 606. Bits six and seven may be Link Protocol Discriminator (LPD) bits 608. Bit 8 ( shown furthest to the left) in the address field 512 may be spare bit 610. The spare bit 610 may be used to indicate that the information field 518 includes a primary and/or secondary PWS notification message.
  • EA extended address
  • C/R command/response
  • SAPI service access point identifier
  • LPD Link Protocol Discriminator
  • FIG. 516 may be used to indicate that the information field 518 contains PWS data.
  • Figure 7 shows a detailed view of the length indicator field 516.
  • Bit 1 of the length indicator field 516 (shown furthest to the right) may be an extension bit 702.
  • Bit two of the length indicator field 516 may be a more data (M) bit 704.
  • Bits three through eight may be length indicator (L) bits 706.
  • the L bits 706 may have a maximum theoretical value of twenty-two, although the L bits 706 have the capacity to represent a higher number.
  • FIG. 8 shows a method 800 for using a FACCH frame as described with reference to Figures 5-7 for the transmission of PWS data.
  • a base station may generate 802 a FACCH frame and transmit 804 the FACCH frame to a WTRU.
  • the WTRU may be in CS dedicated mode.
  • the FACCH frame may include a spare bit, LPD field, and/or length indicator field that is set to indicate that the information field in the FACCH frame contains PWS data, as described above with reference to Figures 5-7.
  • the WTRU may receive and process 806 the FACCH frame, including the PWS primary and/or secondary notification messages contained in the information field in the FACCH frame.
  • Figure 9 shows a method 900 for receiving PWS information at a
  • the WTRU may receive 902 one or more parameters related to how the resource assignment procedure should be performed. These parameters may relate to, for example, how many times the WTRU may retry a request for a resource, and/or specify a time period during which further request messages can be sent.
  • the parameter related to how many times the WTRU may retry a request for a resource may be a Max Retrans parameter, and the parameter specifying a time period during which further request messages can be sent may be a Tx-integer parameter.
  • the Max Retrans parameter may be one of the four values ⁇ 1, 2, 4, or 7 ⁇ , meaning that the WTRU may be in a retransmit situation for eight (total) attempts.
  • the Tx-integer parameter defines the time period between the attempts and the allowed interval during which the WTRU may transmit another message to request a resource.
  • An example value for the Tx-integer is 32, which defines a range of 32 consecutive TDMA frames between 217 and 248 frames after the previously sent request.
  • a WTRU may be configured to send request messages for several seconds.
  • the WTRU begins 904 the resource assignment procedure.
  • the WTRU may begin 904 the resource assignment procedure by, for example, sending a request message that indicates a request for the resource.
  • the request message may be, for example, a Channel Request message, Packet Channel Request message, an EGPRS Packet Channel Request message, or other message.
  • the WTRU may monitor 906 a control channel in order to find an assignment message that indicates an assignment for a resource as requested in the request message.
  • the assignment message may be, for example, an Immediate Assignment message or other assignment message.
  • the control channel may be, for example, a Common Control Channel (CCCH), Access Grant Channel (AGCH), or other control channel.
  • the WTRU may repeat the request for the resources, according to the received parameters.
  • the WTRU may receive 908 a PWS notification.
  • the WTRU makes no further attempts to request a radio resource. Rather, the WTRU may terminate 910 the resource assignment procedure and process the PWS notification.
  • the WTRU may receive 908 different PWS notifications.
  • the WTRU may receive the PWS notification on a Paging Channel (PCH) or on a broadcast channel.
  • PCH Paging Channel
  • the WTRU may make a determination to not perform additional attempts to request a radio resource.
  • the WTRU may then terminate 910 the resource assignment procedure and process the PWS information.
  • WTRU may receive 908 the PWS notification in the assignment message for which the WTRU is monitoring.
  • the assignment message, generated and transmitted by the base station may include an indication (for example, in the form of an IE) that the assignment message includes PWS information.
  • the assignment message may be, for example, an Immediate Assignment message or other assignment message.
  • the WTRU may then receive 908 the assignment message, decode the message, and determine that a PWS primary notification is included in the assignment message.
  • the WTRU may receive 908 the assignment message on a channel such as the CCCH, the AGCH, or another channel.
  • the WTRU may terminate 910 the resource assignment procedure and process the PWS information.
  • the resource assignment procedure described in Figure 9 may be, for example, a GERAN Random Access Channel (RACH) procedure (which is used by a WTRU that is in CS idle mode and PS idle mode to enter dedicated mode), or may be any other procedure related to the assignment of a radio resource.
  • RACH GERAN Random Access Channel
  • the method 900 of Figure 9 is applicable to assignment procedures related to radio resources that include but are not limited to dedicated channels, temporary block flows, radio access bearers, and/or any other type of allocation or configuration of wireless bandwidth for use by a WTRU.
  • FIG. 10 shows an example block diagram of a wireless communication system configurable to implement the method and features for transmission/reception of PWS information described above with reference to Figures 1-9.
  • the wireless communication system includes a WTRU 100, a base station 1005, a base station controller (BSC), and may include other additional base stations, WTRUs, and network- side components (not depicted).
  • the WTRU 1000 may include at least one transceiver (Tx/Rx) 1010, at least one processor 1015, and at least one antenna 1052.
  • the WTRU may also additionally include a SIM card 1020 or other identification card.
  • the processor 1015 is configured to generate and process data such as the PWS-related data described above.
  • the transceiver 1010 is in communication with the processor 1015 and the antenna 1052 to facilitate the transmission and reception of wireless communications, including but not limited to the PWS-related information described above.
  • the processor 1015 may be configured to decode received data to recover PWS information as described above.
  • the SIM card 1020 may include stored PWS short codes that may be accessed by the processor 1015 for decoding received PWS messages.
  • the WTRU 1000 may also optionally include a display (not depicted) in communication with the processor 1015.
  • the display may be based on liquid crystal display (LCD), organic light- emitting diode (OLED), or other display technology.
  • the processor 1015 is maybe configured to process the PWS-related data as described above, and communicate data to the display to render graphical and/or textual representations of the PWS-related data to a user of the WTRU.
  • the base station 1005 may include at least one transceiver (Tx/Rx) 1025, at least one processor 1030, at least one antenna 1062, and a PWS message generator 1035.
  • the processor 1030 is to process data related to PWS information as described above with reference to Figures 1-9.
  • the processor 1030, the PWS message generator 1035, and/or the combination of the processor 1030 and the message generator 1035 may be configured to generate the PWS-related messages described above.
  • the base station 1005 also may be also be configured to operate a CBS; in such an instance, the PWS message generator 1035, the processor 1030, and/or the combination of the PWS message generator 1035 and processor 1030 may be configured to generate the necessary CBS messages.
  • the transceiver 1025 is in communications with the processor 1030, PWS message generator 1035, and antenna 1062 to facilitate the transmission and reception of wireless communications, including the PWS-related messages described above.
  • the base station 1005 may be in wired or wireless communication with a base station controller (BSC) 1040, as well as other additional network side components (not shown). Information related to emergency event triggers and DRX scheduling, as well as other information related to the transmission/reception of PWS information as described above, may be received and stored in BSC 1040.
  • BSC base station controller
  • PWS notifications may be sent using any combination of SMS, CBS, Paging, BCCH, Multimedia Broadcast/Multicast Service (MBMS), or any combination thereof.
  • PWS modes for primary and secondary notifications may be different.
  • a base station may advertise the PWS delivery mode(s) through capability or configuration bits, bit fields, information elements in System Information, or extensions to CS or PS control messages sent to WTRUs.
  • PWS Public Land Mobile Network
  • a WTRU may select the appropriate delivery mode based upon its respective configuration and its respective PWS rules.
  • PWS rules may be a function of WTRU states (CS idle/connected, PS attached/idle) and/or WTRU activity (when in a CS call, when in a PS session, and the like).
  • the PWS rules may also include priority of how a WTRU may attempt to monitor for the occurrence of PWS messages sent by a GSM/GPRS/EGPRS base station.
  • a method for use in wireless communications comprising: receiving a message that includes Public Warning System (PWS) notification information.
  • PWS Public Warning System
  • control channel is a common control channel (CCCH), a broadcast control channel channel (BCCH), a packet common control channel (PCCCH), or a multimedia broadcast/multicast service (MBMS) channel.
  • CCCH common control channel
  • BCCH broadcast control channel channel
  • PCCH packet common control channel
  • MBMS multimedia broadcast/multicast service
  • the stored PWS notification information includes at least one of: a PWS message; a component of a PWS message; a PWS code; a PWS type field; a category; and a PWS data field.
  • SMS short message service
  • a wireless transmit/receive unit configured to perform the method of any one of embodiments 1-33.
  • the WTRU comprises one or more of: a processor; a transceiver; a transmitter; a receiver; and a display.
  • a method for use in wireless communications comprising: transmitting a message that includes Public Warning System (PWS) information.
  • PWS Public Warning System
  • control channel is a common control channel (CCCH), a broadcast control channel (BCCH), a packet common control channel (PCCCH), or a multimedia broadcast/multicast service (MBMS) channel.
  • CCCH common control channel
  • BCCH broadcast control channel
  • PCCH packet common control channel
  • MBMS multimedia broadcast/multicast service
  • SMS short message service
  • An integrated circuit configured to perform the method of any one of embodiments 37-61.
  • a base station configured to perform the method of any one of embodiments 37-61.
  • the base station of embodiment 63 wherein the base station comprises one or more of: a processor; a transceiver; a transmitter; and a receiver.
  • a wireless communication system comprising one or more of: the integrated circuit of embodiment 34; the WTRU of embodiment 35; the WTRU of embodiment 36; the integrated circuit of embodiment 62; the base station of embodiment 63; and the base station of embodiment 64.
  • Examples of computer-readable storage mediums include a read only memory (ROM), a random access memory (RAM), a register, cache memory, semiconductor memory devices, magnetic media such as internal hard disks and removable disks, magneto-optical media, and optical media such as CD-ROM disks, and digital versatile disks (DVDs).
  • ROM read only memory
  • RAM random access memory
  • register cache memory
  • semiconductor memory devices magnetic media such as internal hard disks and removable disks, magneto-optical media, and optical media such as CD-ROM disks, and digital versatile disks (DVDs).
  • Suitable processors include, by way of example, a general purpose processor, a special purpose processor, a conventional processor, a digital signal processor (DSP), a plurality of microprocessors, one or more microprocessors in association with a DSP core, a controller, a microcontroller, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) circuits, any other type of integrated circuit (IC), and/or a state machine.
  • a processor in association with software may be used to implement a radio frequency transceiver for use in a wireless transmit receive unit (WTRU), user equipment (UE), terminal, base station, radio network controller (RNC), or any host computer.
  • WTRU wireless transmit receive unit
  • UE user equipment
  • RNC radio network controller
  • the WTRU may be used in conjunction with modules, implemented in hardware and/or software, such as a camera, a video camera module, a videophone, a speakerphone, a vibration device, a speaker, a microphone, a television transceiver, a hands free headset, a keyboard, a Bluetooth® module, a frequency modulated (FM) radio unit, a liquid crystal display (LCD) display unit, an organic light- emitting diode (OLED) display unit, a digital music player, a media player, a video game player module, an Internet browser, and/or any wireless local area network (WLAN) or Ultra Wide Band (UWB) module.
  • modules implemented in hardware and/or software, such as a camera, a video camera module, a videophone, a speakerphone, a vibration device, a speaker, a microphone, a television transceiver, a hands free headset, a keyboard, a Bluetooth® module, a frequency modulated (FM) radio unit, a liquid crystal display (LCD) display

Abstract

L’invention concerne des procédés et un appareil pour la diffusion d’informations d’un système d’alerte destiné au public (PWS). Dans un mode de réalisation, une unité d’émission/réception sans fil (WTRU) reçoit un message de demande de radiomessagerie qui comprend des informations de notification PWS. Dans un autre mode de réalisation, une station de base est configurée pour émettre un message de demande de radiomessagerie qui comprend des informations de notification du système d’alerte destiné au public (PWS). Dans un autre mode de réalisation, une WTRU commence une procédure d’attribution d’une ressource radio à la WTRU. La procédure peut être, par exemple, une procédure d’accès aléatoire (canal d’accès aléatoire, RACH). La WTRU peut surveiller un canal de commande pour un message d’attribution associé à la ressource radio. En réponse à la réception de la notification PWS, la WTRU peut mettre un terme à la procédure d’attribution de ressource.
PCT/US2009/063882 2008-11-10 2009-11-10 Procédé et appareil pour l’exécution d’un système d’alerte destiné au public WO2010054378A1 (fr)

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US8995947B2 (en) 2012-07-20 2015-03-31 Google Technology Holdings LLC Configuration of display settings for broadcast messaging while roaming
CN107211451A (zh) * 2014-11-26 2017-09-26 Idac控股公司 高频无线系统中的初始接入
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US11569969B2 (en) 2017-12-29 2023-01-31 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for downlink BWP activation and deactivation, and terminal device

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