WO2017215937A1 - Activation de recherche de réseau autonome - Google Patents

Activation de recherche de réseau autonome Download PDF

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Publication number
WO2017215937A1
WO2017215937A1 PCT/EP2017/063331 EP2017063331W WO2017215937A1 WO 2017215937 A1 WO2017215937 A1 WO 2017215937A1 EP 2017063331 W EP2017063331 W EP 2017063331W WO 2017215937 A1 WO2017215937 A1 WO 2017215937A1
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WIPO (PCT)
Prior art keywords
radio
network
communication device
configuration information
carriers
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PCT/EP2017/063331
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English (en)
Inventor
Jari Pekka Mustajarvi
Claudio Rosa
Jarkko Tuomo Koskela
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Nokia Solutions And Networks Oy
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Publication of WO2017215937A1 publication Critical patent/WO2017215937A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

Definitions

  • the present invention relates to the field of wireless communications. More specifically, the present invention relates to methods, apparatus, systems and computer programs for control of autonomous network search in a mobile network.
  • a communication system can be seen as a facility that enables communication sessions between two or more entities such as user terminals, base stations and/or other nodes by providing carriers between the various entities involved in the communications path.
  • a communication system can be provided for example by means of a communication network and one or more compatible communication devices.
  • the communication sessions may comprise, for example, communication of data for carrying communications such as voice, electronic mail (email), text message, multimedia and/or content data and so on.
  • Non- limiting examples of services provided comprise two-way or multi-way calls, data communication or multimedia services and access to a data network system, such as the Internet.
  • wireless communication system at least a part of a communication session between at least two stations occurs over a wireless link.
  • wireless systems comprise public land mobile networks (PLMN), satellite based communication systems and different wireless local networks, for example wireless local area networks (WLAN).
  • PLMN public land mobile networks
  • WLAN wireless local area networks
  • the wireless systems can typically be divided into cells, and are therefore often referred to as cellular systems.
  • a user can access the communication system by means of an appropriate communication device or terminal.
  • a communication device of a user is often referred to as user equipment (UE).
  • UE user equipment
  • a communication device is provided with an appropriate signal receiving and transmitting apparatus for enabling communications, for example enabling access to a communication network or communications directly with other users.
  • the communication device may access a carrier provided by a station, for example a base station of a cell, and transmit and/or receive communications on the carrier.
  • the communication system and associated devices typically operate in accordance with a given standard or specification which sets out what the various entities associated with the system are permitted to do and how that should be achieved. Communication protocols and/or parameters, which shall be used for the connection are also typically defined.
  • An example of attempts to solve the problems associated with the increased demands for capacity is an architecture that is known as the long-term evolution (LTE) of the Universal Mobile Telecommunications System (UMTS) radio-access technology.
  • LTE long-term evolution
  • UMTS Universal Mobile Telecommunications System
  • 3GPP 3rd Generation Partnership Project
  • the various development stages of the 3GPP LTE specifications are referred to as releases.
  • LTE-A LTE-Advanced
  • Communication systems may be configured to use a mechanism for aggregating radio carriers to support wider transmission bandwidth.
  • this mechanism is referred to as carrier aggregation (CA) and can, according to LTE Rel. 12 specifications, support a transmission bandwidth up to 100 MHz.
  • CA carrier aggregation
  • the communication device with reception and/or transmission capabilities for CA can simultaneously receive and/or transmit on multiple component carriers (CCs) corresponding to multiple serving cells, for which the communication device has acquired/monitors system information needed for initiating connection establishment.
  • the communication device has only one radio resource control (RRC) connection with the network.
  • RRC radio resource control
  • one serving cell provides the non-access stratum (NAS) mobility information, such as tracking area identity information.
  • NAS non-access stratum
  • RRC connection (re)establishment or handover one serving cell provides the security input. This cell is referred to as the primary serving cell (PCell), and other cells are referred to as the secondary serving cells (SCells).
  • PCell primary serving cell
  • SCells secondary serving cells
  • SCells can be configured to form together with the PCell a set of serving cells under CA.
  • the carrier corresponding to the PCell is the downlink primary component carrier (DL PCC), while in the uplink it is the uplink primary component carrier (UL PCC).
  • DL PCC downlink primary component carrier
  • U PCC uplink primary component carrier
  • a SCell needs to be configured by the network using RRC signaling before usage in order to provide necessary information, such as DL radio carrier frequency and physical cell identity (PCI) information, to the communication device.
  • PCI physical cell identity
  • a SCell for which such necessary information has been provided to a communication device is referred to as configured cell for this communication device.
  • the information available at the communication device after cell configuration is in particular sufficient for carrying out cell measurements.
  • a configured SCell is in a deactivated state after cell configuration for energy saving.
  • the communication device When a SCell is deactivated, the communication device does in particular not monitor/receive the physical dedicated control channel (PDCCH) or enhanced physical dedicated control channel (EPDCCH) or physical downlink shared channel (PDSCH) in the SCell. In other words the communication device cannot communicate in a SCell after cell configuration, and the SCell needs to be activated before data transmission from/the communication device can be initiated in the SCell.
  • LTE provides for a mechanism for activation and deactivation of SCells via media access control (MAC) control elements to the communication device.
  • MAC media access control
  • Communication systems may be configured to support simultaneous communication with two or more access nodes.
  • this mechanism is referred to as dual connectivity (DC).
  • a communication device may be configured in LTE to communicate with a master eNB (MeNB) and a secondary eNB (SeNB).
  • the MeNB may typically provide access to a macrocell, while the SeNB may provide on a different radio carrier access to a relatively small cell, such as a picocell.
  • MME mobility management entity
  • LTE supports two different user plane architectures for communication devices in DC mode.
  • the MeNB In the first architecture (split bearer) only the MeNB is connected via an S1 -U interface to the serving gateway (S-GW) and the user plane data is transferred from the MeNB to the SeNB via an X2 interface.
  • the SeNB In the second architecture the SeNB is directly connected to the S-GW, and the MeNB is not involved in the transport of user plane data to the SeNB.
  • DC in LTE reuses with respect to the radio interface concepts introduced for CA in LTE.
  • a first group of cells can be provided for a communication device by the MeNB and may comprise one PCell anc one or more SCells
  • a second group of cells referred to as seconday cell group (SCG)
  • SCG seconday cell group
  • PSCell primary SCell
  • This second group of cells may further comprise one or more SCells.
  • Future networks such as 5G, may progressively integrate data transmissions of different radio
  • communication devices may be able to operate simultaneously on more than one radio access technology, and carrier aggregation and dual connectivity may not be limited to the use of radio carriers of only one radio access technology. Rather, aggregation of radio carriers according to different radio access technologies and concurrent communication on such aggregated carriers may be supported.
  • Small cells such as picocells
  • Integration of radio access technologies and/or a high number of small cells may bring about that a communication device may detect more and more cells in future networks, which are suitable candidates for connection establishment.
  • Enhancements of carrier aggregation and dual connectivity mechanisms may be needed to make best use of these cells in future radio access networks.
  • Such enhancements may allow for an aggregation of a high number of radio carriers at a communication device, for example up to 32 are currently specified in LTE Rel. 13, and in particular an integration of radio carriers operated on unlicensed spectrum.
  • Aggregation of radio carriers for communication to/from a communication device and simultaneous communication with two or more access nodes may in particular be used for operating cells on unlicensed (license exempt) spectrum.
  • Wireless communication systems may be licensed to operate in particular spectrum bands.
  • a technology, for example LTE, may operate, in addition to a licensed band, in an unlicensed band.
  • LTE operation in the unlicensed spectrum may be based on the LTE Carrier Aggregatior (CA) framework where one or more low power secondary cells (SCells) operate in the unlicensed spectrum and may be either downlink-only or contain both uplink (UL) and downlink (DL), and where the primary cell (PCell) operates in the licensed spectrum and can be either LTE Frequency Division Duplex (FDD) or LTE Time Division Duplex (TDD).
  • CA Carrier Aggregatior
  • SCells low power secondary cells
  • UL uplink
  • DL downlink
  • PCell primary cell
  • TDD Time Division Duplex
  • LTE-LAA LTE Licensed-Assisted Access
  • LTE-U LTE in Unlicensed Spectrum
  • LTE-LAA specified in 3GPP as part of Rel. 13
  • LTE-U LTE-U as defined by the LTE-U Forum
  • the licensed and unlicensed bands may be operated together using, e.g., carrier aggregation or dual connectivity.
  • carrier aggregation between a primary cell (PCell) on a licensed band and one or more secondary cells (SCells) on unlicensed band may be applied, and uplink control information of the SCells is communicated in the PCell on licensed spectrum.
  • PCell primary cell
  • SCells secondary cells
  • stand-alone operation using unlicensed carrier only may be used.
  • stand-alone operation at least some of the functions for access to cells on unlicensed spectrum and data transmission in these cells are performed without or with only minimum assistance or signaling support from license- based spectrum.
  • Dual connectivity operation for unlicensed bands can be seen as an example of the scenario with minimum assistance or signaling from licensed-based spectrum.
  • Unlicensed band technologies may need to abide by certain rules, e.g. a clear channel assessment procedure, such as Listen-Before-Talk (LBT), in order to provide fair coexistence between LTE and other technologies such as Wi-Fi as well as between LTE operators.
  • LBT Listen-Before-Talk
  • respective rules may be specified in regulations.
  • a radio access network (RAN) providing access via a technology operated in unlicensed spectrum may be connected to the core network of a mobile network operator (MNO), such as the 3GPP evolved packet core network (EPC).
  • MNO mobile network operator
  • EPC 3GPP evolved packet core network
  • the RAN may provide additional access points to a public land mobile network (PLMN).
  • PLMN public land mobile network
  • the MNO of a PLMN may act as a service provider for communication devices in the RAN in unlicensed spectrum, and the communication devices may receive services similar to communication devices connected to, for example, a RAN for LTE or any other 3GPP technology.
  • This access mode is in the following referred to as PLMN access mode.
  • a communication device may need an identity module, such as a universal subscriber identity module (USIM), for access to the network of a MNO in PLMN access mode.
  • a RAN in unlicensed spectrum may support access to multiple participating service providers (PSP), which offer authentication and connectivity via the RAN in unlicensed spectrum.
  • PSP participating service providers
  • the RAN may support multiple PSPs, from which a communication device may select a preferred PSP during initial access to the network. This access mode is often referred to a neutral host network (NHN) mode.
  • a RAN supporting NHN access mode is primarily intended for local internet access, similar to WLAN.
  • a communication device may not need an identity module for access to a network in NHN access mode.
  • MF PLMN access mode and NHN access mode are currently specified by the MulteFire Alliance for a new access technology MulteFire (MF).
  • MF is intended for stand-alone operation of radio access networks (RAN) in unlicensed spectrum.
  • RAN radio access networks
  • MF is a LTE-based technology and shall feature
  • MF-RANs may be in included in the network selection mechanism for LTE/EUTRA.
  • access stratum (AS) functions in communication devices may be configured to search for both, RANs supporting conventional LTE access and/or MF-RANs supporting PLMN access mode.
  • a communication device may in particular be able to change easily between these two types of RANs.
  • Radio access technology selection and frequencies for network discovery may be controlled via idle mode network selection rules broadcast in system information blocks (SIBs). These rules guide network/cell selection procedures of all communication devices in a cell. Additionally or alternatively, an access point may provide a communication device with device-specific selection rules on dedicated channels, for example, when the RRC connection to the communication device is released. A respective RRC connection release message may include device-specific network discovery and selection rules for the communication device in idle mode. The communication device may after RRC connection release still be reachable via a paging mechanism.
  • SIBs system information blocks
  • MF may primarily be used in small cells, and the number of potential carrier frequencies in unlicensed spectrum may significantly exceed the number of carrier frequencies in licensed spectrum. Therefore, there may be a plurality of available MF cells operated on different carrier frequencies in the coverage area of a LTE cell.
  • Network/cell selection requires measurements of signal strengths from available cells at the communication devices. Given the high number of available MF cells configuration and control of respective measurement objects for MF cells by an eNB in a LTE cell may not be possible, or may at leasl be very inefficient. Therefore, there is a need in PLMN access mode for a flexible control mechanism which supports explicit configuration of MF frequencies for network/cell selection and
  • a method comprising receiving, for a first radio access technology, configuration information for network and/or cell selection comprising an indication of a degree of autonomous search by a communication device on one or more radio carriers, and using the configuration information for network and/or cell selection based on the first radio access technology on one of the radic carriers, wherein the one or more radio carriers potentially provide access to the communication device foi extension of a mobile network using a second radio access technology under control of a mobile network operator.
  • the configuration information may be indicative to search autonomously in all of the one or more radic carriers.
  • the configuration information is indicative to activate or deactivate autonomous search autonomously in a least one of the one or more radio carriers.
  • a method comprising determining, for a first radio access technology, configuration information for network and/or cell selection comprising an indication of a degree of autonomous search by a communication device on one or more radio carriers, and causin transmission of the configuration information for use in network and/or cell selection based on the firs radio access technology on one of the radio carriers, wherein the one or more radio carriers potentially provide access to a communication device for extension of a mobile network using a second radio access technology under control of a mobile network operator.
  • the configuration information may be indicative to search autonomously in all of the one or more radic carriers.
  • the configuration information is indicative to activate or deactivate autonomous search autonomously in a least one of the one or more radio carriers.
  • an apparatus comprising at least one processor; and a least one memory including computer program code, the at least one memory and the computer prograrr code configured, with the at least one processor, to cause the apparatus at least to receive, for a first radic access technology, configuration information for network and/or cell selection comp rising an indication o a degree of autonomous search by a communication device on one or more radio carriers; and use the configuration information for network and/or cell selection based on the first radio access technology or one of the radio carriers, wherein the one or more radio carriers potentially provide access to the communication device for extension of a mobile network using a second radio access technology unde control of a mobile network operator.
  • the configuration information may be indicative to search autonomously in all of the one or more radic carriers.
  • the configuration information is indicative to activate or deactivate autonomous search autonomously in a least one of the one or more radio carriers.
  • an apparatus comprising at least one processor; and a least one memory including computer program code, the at least one memory and the computer prograrr code configured, with the at least one processor, to cause the apparatus at least to determine, for a firs radio access technology, configuration information for network and/or cell selection comprising ar indication of a degree of autonomous search by a communication device on one or more radio carriers and cause transmission of the configuration information for use in network and/or cell selection based or the first radio access technology on one of the radio carriers, wherein the one or more radio carriers potentially provide access to a communication device for extension of a mobile network using a seconc radio access technology under control of a mobile network operator.
  • the configuration information may be indicative to search autonomously in all of the one or more radic carriers.
  • the configuration information is indicative to activate or deactivate autonomous search autonomously in a least one of the one or more radio carriers.
  • an apparatus comprising means for performing a method according to embodiments of the first aspect.
  • an apparatus comprising means for performing a method according to embodiments of the second aspect.
  • Figure 1 shows a schematic diagram of an example communication system comprising a base station and a plurality of communication devices
  • Figure 2 shows a schematic diagram of an example mobile communication device
  • Figure 3 shows an example method of a mobile communication device for control of autonomous network/cell search
  • Figure 4 shows an example method of an access node for control of autonomous network/cell search at a communication device
  • FIG. 5 shows a schematic diagram of an example control apparatus
  • mobile communication devices or user equipment (UE) 102, 104, 105 are provided wireless access via at least one base station or similai wireless transmitting and/or receiving node or point.
  • Base stations are typically controlled by at least one appropriate controller apparatus, so as to enable operation thereof and management of mobile
  • the controller apparatus may be located in a radio access network (e.g. wireless communication system 100) or in a core network (CN) (not shown) and may be implemented as one central apparatus or its functionality may be distributed over several apparatus.
  • the controller apparatus may be part of the base station and/or provided by a separate entity such as a Radio Network Controller.
  • control apparatus 108 and 109 are shown to control the respective macro level base stations 106 and 107.
  • the control apparatus of a base station can be interconnected with other control entities.
  • the control apparatus is typically provided with memory capacity and at least one data processor.
  • the control apparatus and functions may be distributed betweer a plurality of control units. In some systems, the control apparatus may additionally or alternatively be provided in a radio network controller.
  • LTE systems may however be considered to have a so-called "flat" architecture, without the provision of RNCs; rather the (e)NB is in communication with a system architecture evolution gateway (SAE-GW) and a mobility management entity (MME), which entities may also be pooled meaning that a plurality of these nodes may serve a plurality (set) of (e)NBs.
  • SAE-GW is a "high-level" user plane core network element in LTE, which may consist of the S-GW and the P-GW (serving gateway and packet data network gateway, respectively). The functionalities of the S-GW and P-GW are separated and they are not required to be co-located.
  • base stations 106 and 107 are shown as connected to a wider communications network 1 13 via gateway 1 12.
  • a further gateway function may be provided to connect to another network.
  • the smaller base stations 1 16, 1 18 and 120 may also be connected to the network 1 13, for example by a separate gateway function and/or via the controllers of the macro level stations.
  • the base stations 1 16, 1 18 and 120 may be pico or femto level base stations or the like. In the example, stations 1 16 and 1 18 are connected via a gateway 1 1 1 whilst station 120 connects via the controller apparatus 108. In some embodiments, the smaller stations may not be provided. Smaller base stations 1 16, 1 18 and 120 may be part of a second network, for example WLAN and may be WLAN APs.
  • a possible mobile communication device will now be described in more detail with reference to Figure 2 showing a schematic, partially sectioned view of a communication device 200.
  • a communication device is often referred to as user equipment (UE) or terminal.
  • An appropriate mobile communication device may be provided by any device capable of sending and receiving radio signals.
  • Non-limiting examples comprise a mobile station (MS) or mobile device such as a mobile phone or what is known as a 'smart phone', a computer provided with a wireless interface card or other wireless interface facility (e.g., USB dongle), personal data assistant (PDA) or a tablet provided with wireless communication capabilities, or any combinations of these or the like.
  • a mobile communication device may provide, for example, communication of data for carrying communications such as voice, electronic mail (email), text message, multimedia and so on. Users may thus be offered and provided numerous services via their
  • Non-limiting examples of these services comprise two-way or multi-way calls, data communication or multimedia services or simply an access to a data communications network system, such as the Internet. Users may also be provided broadcast or multicast data.
  • Non-limiting examples of the content comprise downloads, television and radio programs, videos, advertisements, various alerts and other information.
  • the mobile device 200 may receive signals over an air or radio interface 207 via appropriate apparatus foi receiving and may transmit signals via appropriate apparatus for transmitting radio signals.
  • transceiver apparatus is designated schematically by block 206.
  • the transceiver apparatus 206 may be provided for example by means of a radio part and associated antenna arrangement.
  • the antenna arrangement may be arranged internally or externally to the mobile device.
  • a mobile device is typically provided with at least one data processing entity 201 , at least one memory 20. and other possible components 203 for use in software and hardware aided execution of tasks it is designed to perform, including control of access to and communications with access systems and other communication devices.
  • the data processing, storage and other relevant control apparatus can be provided on an appropriate circuit board and/or in chipsets. This feature is denoted by reference 204.
  • the user may control the operation of the mobile device by means of a suitable user interface such as key pad 205, voice commands, touch sensitive screen or pad, combinations thereof or the like.
  • a display 208, a speaker and a microphone can be also provided.
  • a mobile communication device may comprise appropriate connectors (either wired or wireless) to other devices and/or for connecting external accessories, for example hands-free equipment, thereto.
  • the communication devices 102, 104, 105 may access the communication system based on various access techniques, such as code division multiple access (CDMA), or wideband CDMA (WCDMA).
  • CDMA code division multiple access
  • WCDMA wideband CDMA
  • Other non-limiting examples comprise time division multiple access (TDMA), frequency division multiple access (FDMA) and various schemes thereof such as the interleaved frequency division multiple access (IFDMA) ; single carrier frequency division multiple access (SC-FDMA) and orthogonal frequency division multiple access (OFDMA), space division multiple access (SDMA) and so on.
  • ICDMA interleaved frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SDMA space division multiple access
  • Signaling mechanisms and procedures which may enable a device to address in-device coexistence (ID
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • LTE-A LTE Advanced
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • Base stations of such systems are known as evolved or enhanced Node Bs (eNBs) and provide E-UTRAN features sucr as user plane Packet Data Convergence/Radio Link Control/Medium Access Control/Physical layer protocol (PDCP/RLC/MAC/PHY) and control plane Radio Resource Control (RRC) protocol terminations towards the communication devices.
  • eNBs evolved or enhanced Node Bs
  • RRC Radio Resource Control
  • Other examples of radio access system comprise those provided by base stations of systems that are based on technologies such as wireless local area network (WLAN) and/or WiMax (Worldwide Interoperability for Microwave Access).
  • WLAN wireless local area network
  • WiMax Worldwide Interoperability for Microwave Access
  • Such a mechanism may comprise the transmission of first configuration information for network and/or eel selection on one or more radio carriers.
  • the configuration information may be received at a
  • the communication device may comprise an indication of a degree of autonomous search by the communication device for network and/or cell selection via a first radio access technology on the one or more radio carriers, wherein the one or more radio carriers potentially provide access to the
  • the beneficial effect of such a mechanism is to be seen in that it reduces the effort for configuring measurement objects on the side of the access points, and it allows for a flexible control of the effort for autonomous search on the side of the communication devices.
  • autonomous search may be deactivated for a certain radio access technology or certain combinations of radio access technologies and radio carriers at a communication device, if required subscription information is not available.
  • autonomous search may be activated at a communication device for a certain radio access technology or certain combinations of radio access technologies and radio carriers, if detailed information on available radio carriers and radio access technologies is unknown at the access point of a network.
  • autonomous search may be activated selectively for a certain radio access technology or certain combinations of radio access technologies and radio carriers.
  • Figure 3 shows an example method of a communication device for control of autonomous network/cell search.
  • the communication device receive, for a first radio access technology, configuration information for network and/or cell selection comprising an indication of a degree of autonomous search by a communication device on one or more radio carriers.
  • the method proceeds to step 320.
  • the communication device uses the configuration information for network and/or cell selection based on the first radio access technology on one of the radio carriers, wherein the one or more radio carriers potentially provide access to the communication device for extension of a mobile network using a second radio access technology under control of a mobile network operator.
  • Figure 4 shows an example method of an access node for control of autonomous network/cell search at a communication device.
  • the access node determines, for a first radio access technology, configuration information for network and/or cell selection comprising an indication of a degree of autonomous search by a
  • step 420 The method proceeds to step 420.
  • the access node transmits the configuration information for use in network and/or cell selection based on the first radio access technology on one of the radio carriers, wherein the one or more radio carriers potentially provide access to a communication device for extension of a mobile network using a second radio access technology under control of a mobile network operator.
  • ARFCN Absolute radio frequency channel numbers
  • EARFCN Absolute radio frequency channel numbers
  • EARFCN2 may be used to indicate a specific carrier frequency in measurement commands and for network and/or cell selection/discovery.
  • ARFCN values for LTE/EUTRA are defined in 3GPP specification TS 36.101 in Table 5.7.3-1 "E-UTRA channel number". Different radio access types may be associated with type-specific ARFCN values.
  • 3GPP specification TS 36.101 defines a specific set of ARFCNs for LAA, specifically ARFCNs in the range 46790 - 54539. Communication devices uses these ARFCNs values to measure specific LAA frequencies for enabling access points to setup dual connectivity to a communication device via a secondary access point/eNB operated in unlicensed spectrum.
  • MF may re-use LAA ARFCNs or a dedicated a dedicated ARFCN range for measurement configuration.
  • a set of ARFCNs may be used to provide configuration information comprising an indication of a degree o autonomous search by a communication device. These ARFCNs may only be interpreted by accordingly configured communication devices, and may be ignored by legacy devices. The used ARFCNs may not be allocated to specific channel numbers in a standard.
  • An ARFCN in the set may be used to instruct a communication device to search autonomously in the complete set of radio carriers potentially providing access to a radio access technology, for example MF.
  • the complete set of radio carriers may be preconfigured or predetermined by the network, for example by respective system information, or may be available in a communication device, for example in the USIM.
  • An ARFCN in the set may be used to instruct a communication device to activate or deactivate
  • An ARFCN in the set may be used to instruct a communication device to activate or deactivate
  • radio carriers for example a certain frequency range or band or group of radio carriers.
  • These frequency ranges or bands or group of radio carriers may be preconfigured or predetermined by the network, for example by respective system information, or may be available in a communication device, for example in the USIM.
  • the configuration information may be provided in a cell of the first radio access technology, for example MF, or in a cell of the second radio access technology, for example LTE.
  • information similar to the idleModeMobilityControllnfo in 3GPP specification TS 36.331 may be used to specify a set of ARFCNs for providing an indication of a degree of autonomous search, as discussed above.
  • the control information in idleModeMobilityControllnfo provides in LTE/EUTRAN dedicated cell reselection priorities, used for cell reselection as specified in 3GPP specification TS 36.304.
  • IdleModeMobilityControllnfo SEQUENCE ⁇
  • the information element freqPriorityl_istExtEUTRA-r12 contains all frequencies a communication device is supposed to monitor.
  • the carreirFrequency information element in MeasObjectEUTRA contains information on the specific carrier frequency on which the measurement object is configured.
  • An access point may configure one measurement object indicating with a single EARFCN2 value that a communication device should perform measurements on multiple or all carriers in the corresponding frequency band, instead of separately configuring one measurement objects for each of the available carriers, for example in a frequency band for MF.
  • the communication device may then scan the set of configured carriers and report measurements according to the configured reporting criteria.
  • the communication may or may not need to report the specific EARFCN2 value corresponding to the carrier frequency of the detected cell.
  • FIG. 5 shows an example of a control apparatus for a communication system, for example to be coupled to and/or for controlling a station of an access system, such as a RAN node, e.g. a base station, (e) node B or 5G AP, a central unit of a cloud architecture or a node of a core network such as an MME or S-GW, a scheduling entity, or a server or host.
  • the method may be implantec in a single control apparatus or across more than one control apparatus.
  • the control apparatus may be integrated with or external to a node or module of a core network or RAN.
  • base stations comprise a separate control apparatus unit or module.
  • the control apparatus can be another network element such as a radio network controller or a spectrum controller.
  • each base station may have such a control apparatus as well as a control apparatus being provided in a radio network controller.
  • the control apparatus 300 can be arranged to provide control on communications in the service area of the system.
  • the control apparatus 300 comprises at least one memory 301 , at least one data processing unit 302, 303 and an input/output interface 304. Via the interface the control apparatus can be coupled to a receiver and a transmitter of the base station.
  • the receiver and/or the transmitter may be implemented as a radio front end or a remote radio head.
  • the control apparatus 300 can be configured to execute an appropriate software code to provide the control functions.
  • Control functions may comprise providing configuration information for network and/or cell selection comprising an indication of a degree of autonomous search by a communication device.
  • apparatuses may comprise or be coupled to other units or modules etc., such as radio parts or radio heads, used in or for transmission and/or reception.
  • apparatuses have been described as one entity, different modules and memory may be implemented in one or more physical or logical entities.
  • the various embodiments may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects of the invention may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device, although the invention is not limited thereto. While various aspects of the invention may be illustrated and described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that these blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the embodiments of this invention may be implemented by computer software executable by a data processor of the mobile device, such as in the processor entity, or by hardware, or by a combination of software and hardware.
  • Computer software or program also called program product, including software routines, applets and/or macros, may be stored in any apparatus-readable data storage medium and they comprise program instructions to perform particular tasks.
  • a computer program product may comprise one or more computer-executable components which, when the program is run, are configured to carry out embodiments.
  • the one or more computer-executable components may be at least one software code or portions of it.
  • any blocks of the logic flow as in the Figures may represent program steps, or interconnected logic circuits, blocks and functions, or a combination of program steps and logic circuits, blocks and functions.
  • the software may be stored on such physical media as memory chips, or memory blocks implemented within the processor, magnetic media such as hard disk or floppy disks, and optical media such as for example DVD and the data variants thereof, CD.
  • the physical media is a non-transitory media.
  • the memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory.
  • the data processors may be of any type suitable to the local technical environment, and may comprise one or more of general purpose computers, special purpose computers, microprocessors, digita signal processors (DSPs), application specific integrated circuits (ASIC), FPGA, gate level circuits and processors based on multi core processor architecture, as non-limiting examples.
  • Embodiments of the inventions may be practiced in various components such as integrated circuit modules.
  • the design of integrated circuits is by and large a highly automated process. Complex and powerful software tools are available for converting a logic level design into a semiconductor circuit design ready to be etched and formed on a semiconductor substrate.

Landscapes

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

Abstract

L'invention concerne un procédé consistant à recevoir, pour une première technologie d'accès radio, des informations de configuration pour une sélection de réseau et/ou de cellule comprenant une indication d'un degré de recherche autonome par un dispositif de communication sur une ou plusieurs porteuses radio, et utiliser les informations de configuration pour la sélection de réseau et/ou de cellule sur la base de la première technologie d'accès radio sur une des porteuses radio, où la ou les porteuses radio fournissent potentiellement un accès au dispositif de communication pour l'extension d'un réseau mobile grâce à une deuxième technologie d'accès radio commandée par un opérateur de réseau mobile.
PCT/EP2017/063331 2016-06-14 2017-06-01 Activation de recherche de réseau autonome WO2017215937A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP2016063646 2016-06-14
EPPCT/EP2016/063646 2016-06-14

Publications (1)

Publication Number Publication Date
WO2017215937A1 true WO2017215937A1 (fr) 2017-12-21

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PCT/EP2017/063331 WO2017215937A1 (fr) 2016-06-14 2017-06-01 Activation de recherche de réseau autonome

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111247868A (zh) * 2018-06-20 2020-06-05 谷歌有限责任公司 释放信息以改善在不同的资源控制状态下的小区选择

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2249609A1 (fr) * 2009-05-04 2010-11-10 Research In Motion Limited Système pour indiquer des informations de technologie d'accès radio aux stations mobiles et procédé correspondant
US20150296486A1 (en) * 2014-04-15 2015-10-15 Sharp Laboratories Of America, Inc. Systems and methods for secondary cell id selection
WO2016038762A1 (fr) * 2014-09-12 2016-03-17 日本電気株式会社 Station sans fil, terminal sans fil et procédé associé

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2249609A1 (fr) * 2009-05-04 2010-11-10 Research In Motion Limited Système pour indiquer des informations de technologie d'accès radio aux stations mobiles et procédé correspondant
US20150296486A1 (en) * 2014-04-15 2015-10-15 Sharp Laboratories Of America, Inc. Systems and methods for secondary cell id selection
WO2016038762A1 (fr) * 2014-09-12 2016-03-17 日本電気株式会社 Station sans fil, terminal sans fil et procédé associé
EP3193548A1 (fr) * 2014-09-12 2017-07-19 Nec Corporation Station sans fil, terminal sans fil et procédé associé

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111247868A (zh) * 2018-06-20 2020-06-05 谷歌有限责任公司 释放信息以改善在不同的资源控制状态下的小区选择

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