WO2010049756A2 - Procédé, appareil et produit programme informatique pour de fournir des mécanismes de sélection de cellule et de radiomessagerie - Google Patents

Procédé, appareil et produit programme informatique pour de fournir des mécanismes de sélection de cellule et de radiomessagerie Download PDF

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Publication number
WO2010049756A2
WO2010049756A2 PCT/IB2008/054523 IB2008054523W WO2010049756A2 WO 2010049756 A2 WO2010049756 A2 WO 2010049756A2 IB 2008054523 W IB2008054523 W IB 2008054523W WO 2010049756 A2 WO2010049756 A2 WO 2010049756A2
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WO
WIPO (PCT)
Prior art keywords
node
sub
group identifier
paging group
macro
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Application number
PCT/IB2008/054523
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English (en)
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WO2010049756A3 (fr
Inventor
Haihong Zheng
Shashikant Maheshwari
Basavaraj Patil
Xiaoyi Wang
Original Assignee
Nokia Siemens Networks Oy
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.)
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Application filed by Nokia Siemens Networks Oy filed Critical Nokia Siemens Networks Oy
Priority to PCT/IB2008/054523 priority Critical patent/WO2010049756A2/fr
Publication of WO2010049756A2 publication Critical patent/WO2010049756A2/fr
Publication of WO2010049756A3 publication Critical patent/WO2010049756A3/fr

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Definitions

  • Embodiments of the present invention relate generally to communication technology and, more particularly, relate to an apparatus, method and a computer program product for cell selection and paging mechanisms.
  • WiMAX Worldwide Interoperability for Microwave Access
  • IEEE Institute of Electrical and Electronics Engineers
  • WiMAX systems typically provide wireless broadband access to users of electronic devices as an alternative to cable or digital subscriber line (DSL) access.
  • DSL digital subscriber line
  • base stations typically serve as wireless communication access points for a wireless communication device that may be referred to as a subscriber station (SS), a mobile station (MS), or user equipment (UE).
  • SS subscriber station
  • MS mobile station
  • UE user equipment
  • a SS could be a fixed device such as a personal computer (PC) or a mobile terminal such as a cellular telephone, laptop computer, or other mobile communication device.
  • PC personal computer
  • UE user equipment
  • a femto BS may be a user installed access point providing coverage to a corresponding femto cell that is located within a larger cell (e.g., macro cell) defined by the coverage area of a network installed BS (e.g., a macro BS).
  • a network installed BS e.g., a macro BS
  • the femto BS may provide in-home (or business) mobility with improved data rates and quality of service (QoS) as compared to a macro BS, which may be loaded heavily from communications with other SS and/or may be shielded somewhat by buildings or other obstructions with respect to an in-home user's SS.
  • the femto BS may access the network via a wired communication mechanism such as a DSL line. Accordingly, the femto BS does not load the macro BS in whose macro cell the femto BS may be located. Thus, a femto BS may actually increase macro BS capacity.
  • a method, apparatus and computer program product are therefore provided that may enable the provision of a mechanism for mobile terminal paging and cell selection in relation to femto cells.
  • a method of providing a cell selection mechanism may include performing a scanning operation for a sub-node within a coverage area of a macro node in a radio network, receiving indications of each of one or more sub-nodes proximate to a device performing the scanning operation, and enabling the device to attempt connection to a selected one of the one or more sub-nodes.
  • a computer program product for providing a cell selection mechanism.
  • the computer program product includes at least one computer-readable storage medium having computer-executable program code instructions stored therein.
  • the computer-executable program code instructions may include program code instructions for performing a scanning operation for a sub-node within a coverage area of a macro node in a radio network, receiving indications of each of one or more sub-nodes proximate to a device performing the scanning operation, and enabling the device to attempt connection to a selected one of the one or more sub-nodes.
  • an apparatus for providing a cell selection mechanism may include a processor.
  • the processor may be configured to perform a scanning operation for a sub-node within a coverage area of a macro node in a radio network, receive indications of each of one or more sub-nodes proximate to a device performing the scanning operation, and enable the device to attempt connection to a selected one of the one or more sub-nodes.
  • a method of providing a paging mechanism may include assigning a paging group identifier to a home sub- node within a coverage area of a macro node associated with at least a different paging group identifier, mapping an association between a terminal and at least the home sub node and an association between the home sub-node and the macro node, determining, based at least in part on the mapping and a location of the terminal in relation to a coverage area of the home sub-node and a coverage area of the macro node, a destination for a page request message, the destination including the home sub-node and any macro node associated with the paging group identifier, or any macro node associated with the different paging group identifier, and providing for generation of a page request message to the determined destination.
  • a computer program product for providing a paging mechanism.
  • the computer program product includes at least one computer-readable storage medium having computer-executable program code instructions stored therein.
  • the computer-executable program code instructions may include program code instructions for assigning a paging group identifier to a home sub- node within a coverage area of a macro node associated with at least a different paging group identifier, mapping an association between a terminal and at least the home sub node and an association between the home sub-node and the macro node, determining, based at least in part on the mapping and a location of the terminal in relation to a coverage area of the home sub-node and a coverage area of the macro node, a destination for a page request message, the destination including the home sub-node and any macro node associated with the paging group identifier, or any macro node associated with the different paging group identifier, and providing for generation of a page request message to the determined destination.
  • an apparatus for providing a paging mechanism may include a processor.
  • the processor may be configured to assign a paging group identifier to a home sub-node within a coverage area of a macro node associated with at least a different paging group identifier, map an association between a terminal and at least the home sub node and an association between the home sub-node and the macro node, determine, based at least in part on the mapping and a location of the terminal in relation to a coverage area of the home sub-node and a coverage area of the macro node, a destination for a page request message, the destination including the home sub-node and any macro node associated with the paging group identifier, or any macro node associated with the different paging group identifier, and provide for generation of a page request message to the determined destination.
  • embodiments of the present invention may enable improved network efficiency for cell selection and paging operations.
  • FIG. 1 is a schematic block diagram of a mobile terminal according to an exemplary embodiment of the present invention
  • FIG. 2 is a schematic diagram of a wireless communications system according to an exemplary embodiment of the present invention.
  • FIG. 3 is another schematic diagram of a wireless communications system according to an exemplary embodiment of the present invention.
  • FIG. 4 illustrates a schematic block diagram of an apparatus for providing paging and/or a cell selection mechanism according to an exemplary embodiment of the present invention
  • FIG. 5 shows a schematic diagram of a paging scheme that may be employed by a paging controller according to an exemplary embodiment of the present invention
  • FIG. 6 shows a schematic diagram of an alternative paging scheme that may be employed by a paging controller according to an exemplary embodiment of the present invention
  • FIG. 7 shows a schematic diagram of another alternative paging scheme that may be employed by a paging controller according to an exemplary embodiment of the present invention.
  • FIG. 8 is a flowchart according to an exemplary method for providing a paging mechanism according to an exemplary embodiment of the present invention.
  • FIG. 9 is a flowchart according to another exemplary method for providing a paging mechanism according to an exemplary embodiment of the present invention.
  • FIG. 10 is a flowchart according to an exemplary method for providing a cell selection mechansim according to an exemplary embodiment of the present invention.
  • FIG. 1 illustrates a block diagram of a mobile terminal 10 that may benefit from embodiments of the present invention.
  • a mobile terminal as illustrated and hereinafter described is merely illustrative of one type of device that may benefit from embodiments of the present invention and, therefore, should not be taken to limit the scope of embodiments of the present invention.
  • While one embodiment of the mobile terminal 10 is illustrated and will be hereinafter described for purposes of example, other types of mobile terminals, such as portable digital assistants (PDAs), pagers, mobile computers, mobile televisions, gaming devices, laptop computers, cameras, video recorders, global positioning system (GPS) devices, mobile telephones and other types of voice and text communications systems, can readily employ embodiments of the present invention.
  • PDAs portable digital assistants
  • GPS global positioning system
  • devices that are not mobile may also readily employ embodiments of the present invention.
  • the mobile terminal 10 may include an antenna 12 (or multiple antennas) in operable communication with a transmitter 14 and a receiver 16.
  • the mobile terminal 10 may further include an apparatus, such as a controller 20 or other processing element, that provides signals to and receives signals from the transmitter 14 and receiver 16, respectively.
  • the signals may include signaling information in accordance with the air interface standard of the applicable cellular system, and/or may also include data corresponding to user speech, received data and/or user generated data.
  • the mobile terminal 10 may be capable of operating with one or more air interface standards, communication protocols, modulation types, and access types.
  • the mobile terminal 10 may be capable of operating in accordance with any of a number of first, second, third and/or fourth-generation communication protocols or the like.
  • the mobile terminal 10 may be capable of operating in accordance with non-cellular communication mechanisms.
  • the mobile terminal 10 may be capable of communication in a wireless local area network (WLAN) or other communication networks.
  • WLAN wireless local area network
  • the controller 20 may include circuitry implementing, among others, audio and logic functions of the mobile terminal 10.
  • the controller 20 may comprise a digital signal processor device, a microprocessor device, and various analog to digital converters, digital to analog converters, and/or other support circuits. Control and signal processing functions of the mobile terminal 10 may be allocated between these devices according to their respective capabilities.
  • the controller 20 may also support other functionality for use in encoding, receiving and/or transmitting messages.
  • the controller 20 may include functionality to operate one or more software programs, which may be stored in memory.
  • the controller 20 may be capable of operating a connectivity program, such as a conventional Web browser.
  • the connectivity program may then allow the mobile terminal 10 to transmit and receive Web content, such as location-based content and/or other web page content, according to a Wireless Application Protocol (WAP), Hypertext Transfer Protocol (HTTP) and/or the like, for example.
  • WAP Wireless Application Protocol
  • HTTP Hypertext Transfer Protocol
  • the mobile terminal 10 may also comprise a user interface including an output device such as an earphone or speaker 24, a ringer 22, a microphone 26, a display 28, and a user input interface, which may be coupled to the controller 20.
  • the user input interface which allows the mobile terminal 10 to receive data, may include any of a number of devices allowing the mobile terminal 10 to receive data, such as a keypad 30, a touch display (not shown) or other input device.
  • the keypad 30 may include numeric (0-9) and related keys (#, *), and other hard and soft keys used for operating the mobile terminal 10.
  • the keypad 30 may include a conventional QWERTY keypad arrangement.
  • the keypad 30 may also include various soft keys with associated functions.
  • the mobile terminal 10 may include an interface device such as a joystick or other user input interface.
  • the mobile terminal 10 may further include a battery 34, such as a vibrating battery pack, for powering various circuits that are used to operate the mobile terminal 10, as well as optionally providing mechanical vibration as a detectable output.
  • the mobile terminal 10 may further include a user identity module (UIM) 38, which may generically be referred to as a smart card.
  • the UIM 38 is typically a memory device having a processor built in.
  • the UIM 38 may include, for example, a subscriber identity module (SIM), a universal integrated circuit card (UICC), a universal subscriber identity module (USIM), a removable user identity module (R-UIM), or any other smart card.
  • SIM subscriber identity module
  • UICC universal integrated circuit card
  • USIM universal subscriber identity module
  • R-UIM removable user identity module
  • the mobile terminal 10 may be equipped with memory.
  • the mobile terminal 10 may include volatile memory 40 and/or non- volatile memory 42.
  • FIG. 2 is a schematic diagram of a wireless communications system according to an exemplary embodiment of the present invention.
  • the system may include a plurality of devices comprising a communication network 44 enabling the mobile terminal 10 to communicate with other terminals or devices of the network 44.
  • the mobile terminal 10 may interface with the network 44 via one or more access points, base sites or base stations (BS), which may include macro nodes and sub-nodes.
  • BS base sites or base stations
  • the access points may be a part of one or more cellular networks (e.g., first-generation (IG), second-generation (2G), 2.5G, third-generation (3G), 3.5 G, 3.9G, fourth-generation (4G) mobile communication protocols, Long Term Evolution (LTE), and/or the like ) or data networks (e.g., local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), such as the Internet, and/or the like).
  • IG first-generation
  • 2G second-generation
  • 3G third-generation
  • 4G fourth-generation
  • LTE Long Term Evolution
  • data networks e.g., local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), such as the Internet, and/or the like.
  • the network 44 may include a collection of various different nodes, devices or functions that may be in communication with each other via corresponding wired and/or wireless interfaces.
  • FIG. 1 should be understood to be an example of a broad view of certain elements of the system and not an all inclusive or detailed view of the system or the network 44.
  • One or more communication terminals such as the mobile terminal 10 may be in communication with each other or network devices via the network 44 and each may include an antenna or antennas for transmitting signals to and for receiving signals from a base site or access point.
  • processing elements e.g., personal computers, server computers or the like
  • the mobile terminal 10 may be enabled to communicate with the other devices, for example, according to numerous communication protocols including Hypertext Transfer Protocol (HTTP) and/or the like, to thereby carry out various communication or other functions of the mobile terminal 10.
  • HTTP Hypertext Transfer Protocol
  • the mobile terminal 10 may communicate in accordance with, for example, radio frequency (RF), Bluetooth (BT), Infrared (IR) or any of a number of different wireline or wireless communication techniques, including LAN, wireless LAN (WLAN), Worldwide Interoperability for Microwave Access (WiMAX), WiFi, ultra-wide band (UWB), Wibree techniques and/or the like.
  • RF radio frequency
  • BT Bluetooth
  • IR Infrared
  • LAN wireless LAN
  • WiMAX Worldwide Interoperability for Microwave Access
  • WiFi WiFi
  • UWB ultra-wide band
  • Wibree techniques and/or the like.
  • the mobile terminal 10 may be enabled to communicate with the network 44 and other devices by any of numerous different access mechanisms.
  • W- CDMA wideband code division multiple access
  • GSM global system for mobile communications
  • GPRS general packet radio service
  • WLAN wireless access mechanisms
  • WiMAX wireless access mechanisms
  • DSL digital subscriber line
  • Ethernet Ethernet and/or the like.
  • content or data may be communicated over the system of FIG. 2 between a mobile terminal, which may be similar to the mobile terminal 10 of FIG. 1 and a network device of the system of FIG. 2 in order to execute applications for establishing communication between the mobile terminal 10 and other mobile terminals, for example, via the system of FIG. 2.
  • a mobile terminal which may be similar to the mobile terminal 10 of FIG. 1 and a network device of the system of FIG. 2 in order to execute applications for establishing communication between the mobile terminal 10 and other mobile terminals, for example, via the system of FIG. 2.
  • the system of FIG. 2 need not be employed for communication between mobile terminals or between a network device and the mobile terminal, but rather FIG. 2 is merely provided for purposes of example.
  • embodiments of the present invention may be resident on a communication device such as the mobile terminal 10, and/or may be resident on a network device or other device accessible to the communication device.
  • the mobile terminal 10 may be in communication with the network 44 via an access point having a coverage area in which the mobile terminal 10 is located.
  • access points may include one or more macro nodes (e.g., macro BS 46) having corresponding macro cells (e.g., macro cell 48) and one or more sub- nodes (e.g., femto BS 50) having corresponding femto cells (e.g., femto cell 52).
  • the macro nodes may be in communication with the network 44 via an access serving network gateway (ASN-GW) 54, which along with the macro BS 46 may be a part of the access serving network (ASN).
  • ASN-GW access serving network gateway
  • both the macro BS 46 and the femto BS 50 may be in communication with the same ASN-GW, they may not communicate directly with each other.
  • the femto BS 50 may be in communication with the network 44 and/or the ASN-GW 54 via a DSL line and perhaps an Internet service provider (ISP) router.
  • ISP Internet service provider
  • the system of FIG. 2 may further include other macro nodes forming other macro cells, some of which may overlap with each other.
  • adjacent macro cell 60 may overlap with the macro cell 48 and may be served by another macro BS.
  • more femto BSs may be located throughout the coverage area of either or both of the macro cell 48 and the adjacent macro cell 60.
  • FIG. 3 illustrates an example showing several femto BSs within different rooms of a building (e.g., an apartment or office building) such that each femto BS is within the coverage area of the macro BS 48. As can be seen from FIGS.
  • embodiments of the present invention provide examples of cell selection mechanisms and paging mechanisms that may be useful in such environments.
  • embodiments of the present invention may further include a paging controller 56 and/or a selection assistant 58 that may be embodied at a network device (e.g., the ASN-GW 54) in order to provide the mechanisms described herein.
  • FIG. 4 shows an example of an apparatus that may employ the paging controller 56 and/or selection assistant 58 according to an exemplary embodiment.
  • the paging controller 56 and the selection assistant 58 may be embodied at different network devices and thus, the embodiment of FIG. 4 is merely exemplary of one situation in which both logical devices may be embodied as logical elements of a single apparatus.
  • the apparatus may include or otherwise be in communication with a processor 70, a user interface 72, a communication interface 74 and a memory device 76.
  • the memory device 76 may include, for example, volatile and/or non-volatile memory.
  • the memory device 76 may be configured to store information, data, applications, instructions or the like for enabling the apparatus to carry out various functions in accordance with exemplary embodiments of the present invention.
  • the memory device 76 could be configured to buffer input data for processing by the processor 70.
  • the memory device 76 could be configured to store instructions for execution by the processor 70.
  • the memory device 76 may be one of a plurality of databases that store information and/or media content.
  • the processor 70 may be embodied in a number of different ways.
  • the processor 70 may be embodied as various processing means such as a processing element, a coprocessor, a controller or various other processing devices including integrated circuits such as, for example, an ASIC (application specific integrated circuit), an FPGA (field programmable gate array), a hardware accelerator, or the like.
  • the processor 70 may be configured to execute instructions stored in the memory device 76 or otherwise accessible to the processor 70.
  • the communication interface 74 may be any means such as a device or circuitry embodied in either hardware, software, or a combination of hardware and software that is configured to receive and/or transmit data from/to a network and/or any other device or module in communication with the apparatus.
  • the communication interface 74 may include, for example, an antenna (or multiple antennas) and supporting hardware and/or software for enabling communications with a wireless communication network.
  • the communication interface 74 may alternatively or also support wired communication.
  • the communication interface 74 may include a communication modem and/or other hardware/software for supporting communication via cable, digital subscriber line (DSL), universal serial bus (USB) or other mechanisms.
  • the user interface 72 may be in communication with the processor 70 to receive an indication of a user input at the user interface 72 and/or to provide an audible, visual, mechanical or other output to the user.
  • the user interface 72 may include, for example, a keyboard, a mouse, a joystick, a display, a touch screen, a microphone, a speaker, or other input/output mechanisms.
  • the apparatus is embodied as a server or some other network devices, the user interface 72 may be limited, or eliminated.
  • the processor 70 may be embodied as, include or otherwise control the paging controller 56 and/or the selection assistant 58.
  • the paging controller 56 and the selection assistant 58 may in some cases each be separate devices, modules, or functional elements. However, in other embodiments, some or all of the paging controller 56 and the selection assistant 58 may be embodied within a single device, module, or functional element, such as the processor 70.
  • the paging controller 56 and the selection assistant 58 may each be any means such as a device or circuitry embodied in hardware, software or a combination of hardware and software (e.g., processor 70 operating under software control) that is configured to perform the corresponding functions of the paging controller 56 and the selection assistant 58, respectively, as described below.
  • communication between the paging controller 56 and the selection assistant 58 may be conducted via the processor 70.
  • the paging controller 56 and the selection assistant 58 may alternatively be in direct communication with each other or may not be in communication with each other at all.
  • the paging controller 56 and the selection assistant 58 may include instructions, code, modules, applications and/or circuitry for providing paging and cell selection services, respectively.
  • code, circuitry and/or instructions associated with the paging controller 56 and/or the selection assistant 58 need not necessarily be modular.
  • the paging controller 56 may be configured to enable paging operations in accordance with the description below.
  • the paging controller 56 may be configured to provide efficient paging mechanisms that may reduce unnecessary paging messaging.
  • a macro BS may share the same paging group with each femto BS located within the macro BS (and possibly one or more adjacent macro BSs as well).
  • the paging controller 56 issues a page for the mobile terminal 10 in a particular area, the page may be communicated to all BSs in the area.
  • the mobile terminal 10 may be more likely to be within its home area (e.g., in the femto cell 50 of the home femto BS) paging by all BSs within the area may introduce unnecessary overhead and consume network resources.
  • One alternative may be to have the mobile terminal 10 always enter the idle mode with the macro BS 46 instead of with the femto BS 50 even if the mobile terminal 10 is in the femto cell 52.
  • the mobile terminal 10 may be paged by the macro BS 46.
  • this scheme also introduces extra signaling and delay for the mobile terminal 10 to switch to the femto BS 50 upon entering idle mode and for the mobile terminal 10 to switch from the macro BS 46 to the femto BS 50 after being paged by in the macro cell 48.
  • the femto BS 50 may be deployed in a coverage hole caused by building interference so that the macro BS 46 may be weak if the mobile terminal 10 is indoors or otherwise not clearly capable of receiving signaling from the macro BS 46.
  • the paging controller 56 may be configured to assign a unique paging group identifier to be shared by all the femto BSs in the network.
  • the unique paging group identifier assigned to the femto BSs (e.g., femto network) may be different from the paging group identifier used by macro BSs in the area.
  • FIG. 5 shows a schematic diagram of a paging scheme that may be employed by the paging controller 56 according to this example.
  • the macro cell 48 may have the same paging group identifier (e.g., PGl) as the adjacent macro cell 60, while the femto cell 52 may have a different paging group identifier (e.g., PGO).
  • the paging controller 56 may store an identifier of the home femto BS (e.g., a home femto BS ID or hot-spot ID (operator ID)) of the mobile along with the mobile terminal's paging group ID. Accordingly, when an idle mobile terminal moves into or out of the femto cell 52 (e.g., its home femto cell or a hotspot femto cell), the mobile terminal may perform a location update.
  • the paging controller 56 may become aware of whether or not the mobile terminal 10 is in the femto cell 52. When paging is called for, the paging controller 56 may determine which paging group (e.g., PGO or PGl) to page based on the location of the mobile terminal 10. In this regard, for example, if the mobile terminal is in the femto cell 52, a paging message may be broadcast from the femto BS 50 (e.g., the home femto BS, enterprise femto BS or hot-spot femto BS) to the mobile terminal 10 during the page listening interval. If the mobile terminal 10 is not in the femto cell 52 based on the location update, the paging message may be sent normally to the macro cells belonging to the paging group where the MS is currently located.
  • the paging group e.g., PGO or PGl
  • the macro BS 46 may also be assigned a paging group identifier that is shared with the femto BS 50.
  • the macro BS 46 may have two paging group identifiers (e.g., PGO and PGl), while the adjacent macro cells may only be associated with PGl .
  • the femto BS 50 and other femto BSs within the macro cell 48 may only have the paging group identifier PGO.
  • the paging controller 56 may determine which paging group to page based on the last location update.
  • the paging controller 56 may page paging group identifier PGO via a broadcast paging message sent from both the femto BS 50 and the macro BS 46 during the paging interval.
  • This embodiment may provide for a reduction in ping-pong location update signaling when the mobile terminal 10 is moving in and out of the femto cell 52 at the cost of transmission of additional page messages from the macro BS 46.
  • the paging controller 56 may be configured to send page messages multiple times during the page listening interval when such messages are sent via a femto network. Accordingly, reliability of page messages may be increased and dedicated resources may be provided for sending page responses instead of the mobile terminal 10 using a contention method in order to reduce idle-to-active state transition latency.
  • FIG. 6 shows a schematic diagram of a paging scheme that may be employed by the paging controller 56 according to an alternative example.
  • a unique paging group identifier may be assigned by the paging controller 56 to each femto BS within the coverage area of a particular macro BS.
  • femto BSs within the macro cell 48 may be in a first paging group and have a corresponding first paging group identifier (e.g., PGO).
  • the macro BSs in the area may share a different paging group identifier and be in a different paging group (e.g., a second paging group having a second paging group identifier (e.g., PGl)).
  • the femto BSs within another macro cell e.g., the adjacent macro cell 60
  • each macro BS may also be in a respective paging group with its corresponding femto BSs.
  • the macro BS 46 may be associated with both the first paging group identifier PGO and the second paging group identifier PGl.
  • the mobile terminal 10 may not need to perform a location update when moving between the femto BS 50 and the macro BS 46, but may instead perform location updating when moving from the macro BS 46 to the adjacent BS 60 since the mobile terminal is out of the coverage area of the same paging group (e.g., PGO).
  • the paging controller 56 may store a mapping between a mobile terminal and its home femto BS(s) and the overlay or macro BS(s).
  • the paging controller 56 may determine which paging group to page. In this regard, for example, if the mobile terminal 10 is in the vicinity of home femto coverage based on the location of the mobile terminal 10, the paging message may be sent to the home femto BS 52 of the mobile terminal and the macro BS 46, which both belong to the first paging group (i.e., PGO).
  • all femto BSs in the network may share the same unique paging group identifier (e.g., PGO) and macro BSs in a particular area may share a different paging group identifier (e.g., PGl).
  • the macro BSs which has femto BS deployed in its coverage area may also be included in the paging group of the femto BSs.
  • any macro BS which has femto BS deployed in its coverage area may also share the paging group identifier PGO.
  • the paging controller 56 may assign these paging group identifiers and store a mapping between each mobile terminal and its corresponding home femto BS(s) and macro BS(s). Accordingly, the mobile terminal 10 may not need to perform a location update when moving between the femto cell 52 and the macro cell 48. However, when the mobile terminal 10 moves out of its home femto vicinity area (e.g., the coverage area of its home femto BS 50 and the overlay macro BS 46), it performs location updating even if the adjacent cell (e.g., cell 60) shares the same paging group (e.g., PGO). By doing that the paging controller 56 may become to aware that the mobile terminal 10 already moved out of its home femto BS vicinity area.
  • the adjacent cell e.g., cell 60
  • PGO paging group
  • the paging controller 56 may determine which paging group to page. In this regard, for example, if the mobile terminal 10 is in the vicinity of home femto coverage based on the location of the mobile terminal 10, the paging message may be sent to the home femto BS 50 of the mobile terminal 10 and the macro BS 46, which both belong to the first paging group (PGO). Meanwhile, if the mobile terminal 10 is outside the vicinity of home femto coverage, the paging message may be sent normally to the paging group of the macro BSs.
  • the mobile terminal 10 may perform location updates when moving out of the macro BS.
  • the mobile terminal 10 may perform a location update.
  • the paging controller 56 may be aware that the mobile terminal 10 is no longer located in its home femto or the macro cell 48. Thus, the paging controller 56 may not send page messages via these cells even though they share the same paging group identifier.
  • the paging controller 56 may switch off power to the home femto BS when the paging controller 56 knows that the mobile terminal 10 is not in the vicinity of the home femto BS. Additionally or alternatively, the macro BS may signal to the home femto BS to turn on if the mobile terminal 10 moves into the vicinity of the home femto BS (e.g., is in the macro cell 48 or the femto cell 52).
  • the paging controller 56 may be configured to assign femto BSs within a particular macro BS with a unique paging group identifier that is different than at least one paging group identifier associated with the particular macro BS.
  • the particular macro BS may also be associated with the paging group identifier of the femto BSs within the particular macro BSs coverage area, but this is not always the case.
  • all network femto BSs may share the same unique paging group identifier, while in other embodiments only femto BSs within the same macro cell may share the same paging group identifier.
  • the paging controller 56 may also store mappings between mobile stations and their respective home femto BSs as well as the mappings between its home femto BSs and the overlay macro BS and determine whether or not the mobile stations are within the vicinity of their respective home femto BSs and send paging messages based on the determination. Accordingly, an efficient paging mechanism may be provided.
  • cell selection may also be desirable for improvement in environments such as those shown in FIGS. 2 and 3.
  • the mobile terminal 10 is in a particular room in the building of FIG. 3 and is able to receive signals from various available access points including the macro BS 46 (and perhaps an adjacent macro BS), the femto BS 50 and one or more other femto BSs
  • embodiments of the present invention may provide different mechanisms by which one of the available access points may be selected.
  • the network 44 may provide the mobile terminal with the base station identifier (BSID) of the femto BSs to which the mobile terminal may access. After obtaining the BSID, the mobile terminal may scan for the provided BSID to discover the corresponding femto BS.
  • BSID base station identifier
  • This scheme is generally simple and does not require user interface support at the mobile terminal. However, this scenario may only be applicable to femto BSs that provide access to a small number of users in a closed access scenario and does not provide an opportunity for users to choose a desired femto network to access. Additionally, this scenario of providing a list of BSIDs of femto BSs may not be scalable in some situations such as where an operator runs hot-spot networks or in enterprise networks.
  • a network service provider may choose which embodiments to employ and under what conditions to employ such embodiments based on the application scenario facing the NSP.
  • NSP network service provider
  • embodiments of the present invention may be used for open femto access (e.g., public, enterprise, hot-spot, etc.) or closed femto access (e.g., home access) for visitors and/or regular home users.
  • the selection assistant 58 may be configured to support open femto access by broadcasting an indication of the existence of one or more femto BSs within the cell of a corresponding macro BS.
  • the selection assistant 58 may be configured to broadcast an indication of the existence of the femto BS 50.
  • the femto BS 50 may provide mobile stations within its femto cell 52 with a NSP identifier (NSP ID) and NSP verbose name, as well as the verbose femto NSP name of the femto BS 50.
  • NSP ID NSP identifier
  • NSP verbose name as well as the verbose femto NSP name of the femto BS 50.
  • the NSP ID may identify the service provider (e.g., Sprint) and the NSP verbose name may identify a femto BS of the NSP (e.g., sprintfemto).
  • the NSP ID may be "Sprint”
  • the NSP verbose name may be "sprintfemto”
  • the verbose femto NSP name may be "joesmith. sprintfemto”.
  • the macro BS 46 may broadcast as little femto network information as possible.
  • the macro BS 46 may broadcast availability of the femto network, frequency information, a list of femto preambles, a list of NSP IDs, femto network verbose names and BSIDs, and/or the like.
  • the mobile terminal 10 While being aware of the presence of a femto BS (e.g., the femto BS 50), and possibly also being aware of other associated information, the mobile terminal 10 may scan its environment to try to find a suitable or at least available femto cell. Various options may be provided for the scanning.
  • the mobile terminal 10 may include a cell selector 80 (see FIG. 1), which may be any means such as a device or circuitry embodied in hardware, software or a combination of hardware and software (e.g., controller 20 operating under software control) that is configured to perform the corresponding functions of the cell selector 80 as described below.
  • the cell selector 80 may, in some cases, communicate with the selection assistant 58 in order to accomplish cell selection in accordance with embodiments of the present invention. However, in some cases the cell selector 80 and the selection assistant 58 may operate independent of one another.
  • the cell selector 80 may be configured to perform periodic blind scanning operations in order to find (via the scanning) femto BSs in the vicinity of the mobile terminal 10.
  • the cell selector 80 may also be configured to try to authenticate with each femto BS that is found until the cell selector 80 succeeds in authenticating with one of the femto BSs.
  • the cell selector 80 may be configured to perform blind scanning similar to the description above. However, rather than discovering all femto BSs in the vicinity, the cell selector 80 may be configured to, after finding a first femto BS (e.g., the femto BS 50) request from the network (e.g., from the selection assistant 58), a listing of other femto BSs in the vicinity.
  • the selection assistant 58 may be configured to store or access stored information indicative of femto BSs of which the selection assistant 58 is aware.
  • the selection assistant 58 may be configured to provide the cell selector 80 with a list (e.g., of verbose names) of the femto BSs and also possibly the corresponding BSID (or even preamble) of the femto BSs.
  • the cell selector 80 may present the list to the user to enable the user to manually select the femto BS that the user wants to attempt to use. After the user selects a femto BS (e.g., via the user interface of the mobile terminal 10), the mobile terminal 10 may attempt to connect with the selected femto BS.
  • the selection assistant 58 may broadcast the list of NSP ID, NSP verbose name, verbose femto NSP name and/or BSID in some cases. However, in other cases, the NSP ID, NSP verbose name, verbose femto NSP name and/or BSID may be requested by the mobile terminal 10 (e.g., by the cell selector 80) prior to transmission of such information.
  • each femto BS may be associated with NSP information including, for example, the NSP ID that is used to identify the service provider (e.g., Sprint), the associated verbose NSP name (e.g., sprintfemto), the verbose femto NSP name (e.g., joesmith. sprintfemto) and optionally an associated femto NSP ID.
  • the NSP information may be provided to the mobile terminal 10 in, for example, a service identity information (SII-ADV) message.
  • SII-ADV service identity information
  • the user or the network may configure femto BSs with corresponding verbose femto NSP names.
  • the cell selector 80 may be configured to scan for femto BSs in the area in order to find nearby femto BSs.
  • the found or discovered femto BSs may be identified to the user of the mobile terminal 10 by the cell selector 80 by providing a list of identities (e.g., verbose femto NSP names) provided on the user interface of the mobile terminal 10.
  • identities e.g., verbose femto NSP names
  • multiple femto operators may be available, in which case the user may select a desired femto operator using the NSP verbose name.
  • the verbose name of the femto BS(s) supported by the selected operator may be displayed in the user interface of the mobile terminal 10.
  • the user may then be enabled to select one of the identified femto BSs.
  • the user may additionally receive an indication as to whether the femto BSs identified are open access or closed access femto BSs. The user may therefore make a decision as to whether to select a particular femto BS for an attempt to connect based on the indication of whether the particular femto BS is open or closed access.
  • the cell selector 80 may be configured (either manually or via signaling from the macro BS 46 (e.g., via the selection assistant 58)) with information such as the NSP ID and/or verbose NSP name, and verbose femto NSP name and/or femto NSP ID of a femto BS to which the mobile terminal 10 is allowed to connect.
  • the cell selector 80 may be configured to scan and find its home femto BS with a preconfigured verbose femto NSP name and attempt to connect thereto. Accordingly, in this exemplary case, no manual femto BS selection may be needed by the user.
  • FIGS. 8-10 are flowcharts of a system, method and program product according to exemplary embodiments of the invention. It will be understood that each block or step of the flowcharts, and combinations of blocks in the flowcharts, can be implemented by various means, such as hardware, firmware, and/or software including one or more computer program instructions. For example, one or more of the procedures described above may be embodied by computer program instructions. In this regard, the computer program instructions which embody the procedures described above may be stored by a memory device of the mobile terminal or network device and executed by a built-in processor in the mobile terminal or network device.
  • any such computer program instructions may be loaded onto a computer or other programmable apparatus (i.e., hardware) to produce a machine, such that the instructions which execute on the computer or other programmable apparatus create means for implementing the functions specified in the flowcharts block(s) or step(s).
  • These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowcharts block(s) or step(s).
  • the computer program instructions may also be loaded onto a computer or other programmable apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer- implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowcharts block(s) or step(s).
  • blocks or steps of the flowcharts support combinations of means for performing the specified functions, combinations of steps for performing the specified functions and program instruction means for performing the specified functions. It will also be understood that one or more blocks or steps of the flowcharts, and combinations of blocks or steps in the flowcharts, can be implemented by special purpose hardware-based computer systems which perform the specified functions or steps, or combinations of special purpose hardware and computer instructions.
  • one embodiment of a method for providing a paging mechanism as provided in FIG. 8 may include assigning a paging group identifier to all the sub-nodes within a coverage area of a macro node associated with at least a different paging group identifier (although the macro node may also include the same paging group identifier as well in some cases) at operation 100.
  • the method may further include determining, based at least in part on the mapping and a location of the terminal in relation to a coverage area of the home sub-node and a coverage area of the macro node, a destination for a page request message, the destination including the home sub-node and any macro node associated with the paging group identifier at operation 110, and providing for generation of a page request message to the determined destination at operation 120.
  • the method may include further optional operations, some examples of which are shown in dashed lines in FIG. 8. Optional operations may be performed in any order and/or in combination with each other in various alternative embodiments. As such, the method may further include operations of assigning the paging group identifier to the macro node in addition to the different paging group identifier at operation 102.
  • the method may include storing a mapping between the mobile terminal and a home sub-node of the mobile terminal (and an association between the home sub-node and the macro node) to enable a determination as to whether the mobile terminal is within a vicinity of the sub-node for use in paging the device associated with the determined one of the paging group identifier or the different paging group identifier at operation 104.
  • the method may include receiving information indicative of a location update from the terminal only in response to a determination that the location of the terminal is outside of the coverage area of the home sub-node and the coverage area of the macro node at operation 121 or not providing paging to a device determined to be in a location corresponding to a coverage area in which the terminal is not located at operation 122.
  • assigning the paging group identifier in operation 100 may include assigning the paging group identifier to all sub-nodes in a network regardless of with which of a plurality of macro nodes the sub-nodes are associated.
  • assigning the paging group identifier may include assigning the paging group identifier to all sub-nodes within the coverage area of the macro node, and assigning another different paging group identifier to sub-nodes within the coverage area of other macro nodes.
  • an apparatus for performing the method of FIG. 8 above may comprise a processor (e.g., the processor 70) configured to perform some or each of the operations (100-122) described above.
  • the processor may, for example, be configured to perform the operations (100-122) by performing hardware implemented logical functions, executing stored instructions, or executing algorithms for performing each of the operations.
  • the apparatus may comprise means for performing each of the operations described above.
  • examples of means for performing operations 100-122 may comprise, for example, the processor 70, the paging controller 56, or an algorithm executed by the processor 70 for processing information as described above.
  • a method for providing a paging mechanism from the perspective of the mobile terminal is shown in FIG. 9.
  • the method may include determining whether the communication terminal is located outside a coverage area of a home sub-node and a macro node in which the home sub-node is located based at least in part on the paging group identifier of the home sub-node not matching the paging group identifier of a cell covering a current location of the communication terminal at operation 150.
  • the method may further include performing a location update in response to the determining that the communication terminal is located outside the coverage area of the home sub-node and the macro node at operation 160 and optionally performing a location update in response to determining that the communication terminal has returned to the coverage area of the home sub-node or the macro node at operation 170.
  • a method for providing a cell selection mechanism as indicated in FIG. 10 may include performing a scanning operation for a sub-node within a coverage area of a macro node in a radio network (e.g., WiMAX, LTE, etc.) at operation 200, receiving indications of each of one or more sub-nodes proximate to a device performing the scanning operation at operation 210, and enabling the device to attempt connection to a selected one of the one or more sub-nodes at operation 220.
  • a radio network e.g., WiMAX, LTE, etc.
  • the method may include further optional operations, an example of which is shown in dashed lines in FIG. 10. Optional operations may be performed in any order and/or in combination with each other in various alternative embodiments.
  • the method may further include an operation of comparing the received indications to a pre-conf ⁇ gured sub-node identity at operation 215 such that enabling the device to attempt the connection comprises initiating an attempt to connect to a sub-node corresponding to the pre-configured sub-node identity.
  • receiving the indications at operation 210 may include receiving a listing of information associated with the proximate sub-nodes in which the information includes an identity of a service provider, a verbose network service provider name, a verbose femto network service provider name, and/or a femto network service provider identifier.
  • enabling the device to attempt connection may include enabling the device to attempt connection to a user selected sub-node from the listing.
  • receiving the indications may include receiving the indications from a network device in response to a request for information identifying proximate sub-nodes.
  • an apparatus for performing the method of FIG. 10 above may comprise a processor (e.g., the controller 20) configured to perform some or each of the operations (200-220) described above.
  • the processor may, for example, be configured to perform the operations (200-220) by performing hardware implemented logical functions, executing stored instructions, or executing algorithms for performing each of the operations.
  • the apparatus may comprise means for performing each of the operations described above.
  • examples of means for performing operations 200-220 may comprise, for example, the controller 20, the cell selector 80, or an algorithm executed by the controller 20 for processing information as described above.

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

L’invention concerne un appareil destiné à fournir un mécanisme de sélection de cellule, qui comprend un processeur configuré pour effectuer une opération de balayage pour un sous-nœud à l’intérieur d’une zone de couverture de macro-nœud dans un réseau radio, recevoir des indications d’un ou de plusieurs sous-nœuds proches d’un dispositif effectuant l’opération de balayage et permettre au dispositif de tenter d’établir une connexion avec un ou plusieurs sous-nœuds sélectionnés de la pluralité de sous-nœuds. Un appareil destiné à fournir un mécanisme de radiomessagerie comprend un processeur pour affecter un identificateur de groupe de radiomessagerie à un sous-nœud local à l’intérieur d’une zone de couverture de macro-nœud associé à au moins un identificateur de groupe de radiomessagerie différent, mapper une association entre un terminal et au moins le sous-nœud local et une association entre le sous-nœud local et le macro nœud, déterminer en fonction au moins partielle du mappage et de l’emplacement du terminal en relation avec une zone de couverture du sous-nœud local et une zone de couverture du macro-nœud, une destination pour un message de demande de radiomessagerie, la destination comprenant le sous-nœud local et un macro nœud quelconque associé à l’identificateur de groupe de radiomessagerie, ou un macro nœud quelconque associé à l’identificateur de groupe de radiomessagerie différent, et générer le message de demande de radiomessagerie vers la destination déterminée.
PCT/IB2008/054523 2008-10-30 2008-10-30 Procédé, appareil et produit programme informatique pour de fournir des mécanismes de sélection de cellule et de radiomessagerie WO2010049756A2 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2521397A1 (fr) * 2011-05-06 2012-11-07 Cinterion Wireless Modules GmbH Activation de selection de cellule amélioré et de appel amélioré de dispositifs de terminaux stationnaires dans un réseau de communication mobile cellulaire
WO2013138385A3 (fr) * 2012-03-12 2013-11-28 Qualcomm Incorporated Procédés et appareils de recherche de mobile dans des réseaux hétérogènes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070105568A1 (en) * 2005-10-04 2007-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Paging for a radio access network having pico base stations
US20070184824A1 (en) * 2004-03-08 2007-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Unlicensed-radio access networks in mobile cellular communication networks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070184824A1 (en) * 2004-03-08 2007-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Unlicensed-radio access networks in mobile cellular communication networks
US20070105568A1 (en) * 2005-10-04 2007-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Paging for a radio access network having pico base stations

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NTT DOCOMO: "Paging Procedure in LTE" 3GPP DRAFT; R2-061982, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Cannes, France; 20060622, 22 June 2006 (2006-06-22), pages 1-4, XP050142008 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2521397A1 (fr) * 2011-05-06 2012-11-07 Cinterion Wireless Modules GmbH Activation de selection de cellule amélioré et de appel amélioré de dispositifs de terminaux stationnaires dans un réseau de communication mobile cellulaire
US8892095B2 (en) 2011-05-06 2014-11-18 Gemalto M2M Gmbh Enabling enhanced paging of stationary terminal devices in a cellular mobile communication network
WO2013138385A3 (fr) * 2012-03-12 2013-11-28 Qualcomm Incorporated Procédés et appareils de recherche de mobile dans des réseaux hétérogènes
US9913207B2 (en) 2012-03-12 2018-03-06 Qualcomm Incorporated Methods and apparatuses for paging in heterogeneous networks

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