WO2013190501A2 - Système et procédé de communication sans fil - Google Patents

Système et procédé de communication sans fil Download PDF

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Publication number
WO2013190501A2
WO2013190501A2 PCT/IB2013/055081 IB2013055081W WO2013190501A2 WO 2013190501 A2 WO2013190501 A2 WO 2013190501A2 IB 2013055081 W IB2013055081 W IB 2013055081W WO 2013190501 A2 WO2013190501 A2 WO 2013190501A2
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WO
WIPO (PCT)
Prior art keywords
system information
user equipment
neighbouring cell
notification
cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2013/055081
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English (en)
Other versions
WO2013190501A3 (fr
Inventor
Brian Martin
Keiichi Kubota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renesas Electronics Corp
Original Assignee
Renesas Mobile Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renesas Mobile Corp filed Critical Renesas Mobile Corp
Publication of WO2013190501A2 publication Critical patent/WO2013190501A2/fr
Publication of WO2013190501A3 publication Critical patent/WO2013190501A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present invention relates to wireless communication systems, methods, devices and computer programs, and more specifically relates to provisioning of system information to a user equipment in a communications network.
  • a geographical area is divided into several "cells" each of which is served by a base station (BS) having a radio coverage area.
  • Base stations are in turn connected to a radio network controller (RNC).
  • the wireless communications link (e.g., radio interface) between a mobile terminal or a wireless transmit/receive unit or a user equipment, and a corresponding base station includes a number of different logical channels which may be separated into two broad categories: traffic channels and control channels.
  • Traffic channels are utilized by a serving base station controller to communicate call data (e.g., voice data) with a user equipment travelling within the cell defined by the base station.
  • Control channels are utilized by the serving radio network controller or serving cell to communicate control data (e.g., system information) necessary to implement the connection of call data with the user equipment.
  • control channels include broadcast channels (BCH), Common Control Channels (CCCH) and Dedicated Control Channels (DCCH).
  • Each of the above three categories of control channels may still further be subdivided into a number of logical channels for transporting different types of information between the serving base station (BS) and a user equipment.
  • Broadcast control channels may be used to broadcast general system information defined by the broadcasting base station about the cell to mobile stations located within or near the cell.
  • system information parameters are defined in order to provide network configuration, adaptation, and optimization options.
  • Exemplary cell parameters include cell descriptions, location area identity, neighbouring cell description or relation, physical cell parameters, cell traffic load, traffic measurement information and/or core network information. Certain of these parameter values must be known by a user equipment before a first attempt to access the network can be made by that user equipment. Therefore, the parameters (cell parameters or system information parameters) are typically broadcast regularly via control channel(s) in every cell of the network via so-called system information blocks (SIB).
  • SIB system information blocks
  • the serving cell may communicate limited system information in relation to one or more neighbouring cells via SIBs 11, l lbis and 12, or user equipments may acquire system information in relation to neighbouring cell by monitoring a BCCH corresponding to the neighbouring cell.
  • SIBs 11, l lbis and 12 or user equipments may acquire system information in relation to neighbouring cell by monitoring a BCCH corresponding to the neighbouring cell.
  • Embodiments are directed towards providing updated neighbouring cell system information to user equipments.
  • an apparatus for use in maintaining system information at a user equipment in a communications network, the system information corresponding to a plurality of cells, the plurality of cells comprising a serving cell currently serving the user equipment and a neighbouring cell that is a neighbour of the serving cell, and the user equipment comprising a memory arranged to store at least system information corresponding to the neighbouring cell, wherein the apparatus comprises a processing system arranged to cause the apparatus to: whilst being served by the serving cell, receive a notification, said notification comprising data indicative of a change to system information corresponding to the neighbouring cell; and thereafter selectively monitor for a BCCH corresponding to the neighbouring cell, whereby to update the stored system information corresponding to the neighbouring cell.
  • a method of maintaining system information at a user equipment in a communications network the system information corresponding to a plurality of cells, the plurality of cells comprising a serving cell currently serving the user equipment and a neighbouring cell that is a neighbour of the serving cell, and the user equipment comprising a memory arranged to store at least system information corresponding to the neighbouring cell
  • the method comprises: whilst being served by the serving cell, receiving a notification, said notification comprising data indicative of a change to system information corresponding to the neighbouring cell; and thereafter selectively monitoring for a BCCH corresponding to the neighbouring cell, whereby to update the stored system information corresponding to the neighbouring cell.
  • the first and second exemplary embodiments are most conveniently implemented in a user equipment.
  • Embodiments also include a computer program comprising a set of instructions, which, when executed by a user equipment, cause the user equipment to perform a method according to the second embodiment.
  • a third exemplary embodiment of the invention there is provided an apparatus for use in facilitating provisioning of system information to a user equipment in a communications network, said system information corresponding to a plurality of cells, the plurality of cells comprising a serving cell currently serving the user equipment and a neighbouring cell that is a neighbour of the serving cell, the apparatus comprising a processing system arranged to cause the apparatus to: receive a notification comprising data indicative of a change to system information corresponding to the neighbouring cell; and whilst the user equipment is being served by the serving cell, transmit data indicative of said notification for receipt by the user equipment, whereby to cause the user equipment to selectively monitor for a Broadcast Control Channel (BCCH) corresponding to said neighbouring cell in order to update the system information corresponding to the neighbouring
  • a method of facilitating provisioning of system information to a user equipment in a communications network said system information corresponding to a plurality of cells, the plurality of cells comprising a serving cell currently serving the user equipment and a neighbouring cell that is a neighbour of the serving cell, the method comprising: receiving a notification comprising data indicative of a change to system information corresponding to the neighbouring cell; and whilst the user equipment is being served by the serving cell, transmitting data indicative of said notification for receipt by the user equipment, whereby to cause the user equipment to selectively monitor for a Broadcast Control Channel (BCCH) corresponding to said neighbouring cell in order to update the system information corresponding to the neighbouring cell maintained thereon.
  • BCCH Broadcast Control Channel
  • Embodiments are most conveniently implemented in a radio network controller or a base station.
  • Embodiments also include a computer program comprising a set of instructions, which, when executed by a radio network controller or a base station, cause the radio access node or the base station to perform a method according to the fourth embodiment.
  • Embodiments generally involve methods, computer programs and apparatus for notifying a user equipment of a change to system information relating to a cell that is a neighbour of the cell currently serving the user equipment.
  • the notification may be provided via an RRC message sent directly from a radio access node, or via system information block information broadcast by the serving cell.
  • These notifications can cause the user equipment to monitor for a BCCH corresponding to the neighbour cell and the user equipment can thereafter identify and store changed system information for the neighbour cell.
  • Figure 1 is a simplified block diagram of a communication network within which embodiments operate.
  • Figure 2 is a logic flow diagram that illustrates the operation of a method, and a result of execution of computer program instructions embodied on a computer readable memory, in accordance with exemplary embodiments.
  • Figure 3 is a flow diagram that illustrates the various steps performed by UE, serving cell, neighbouring cell and radio network controller according to embodiments.
  • Figure 4 is a logic flow diagram that illustrates the operation of a method, and a result of execution of computer program instructions embodied on a computer readable memory, in accordance with exemplary embodiments.
  • Figure 5 is a flow diagram that illustrates the various steps performed by UE, serving cell, neighbouring cell and radio network controller according to embodiments.
  • Figure 6 is a logic flow diagram that illustrates the operation of a method, and a result of execution of computer program instructions embodied on a computer readable memory, in accordance with exemplary embodiments.
  • FIG. 7 is a simplified block diagram of various network devices, which are exemplary electronic devices suitable for use in practicing the exemplary embodiments. Detailed Description
  • Embodiments are concerned with facilitating provisioning of system information to a user equipment in a communications network.
  • a basic system architecture of a communication network where examples of embodiments are practised may comprise a commonly known architecture of one or more communication networks comprising a wired or wireless access network subsystem and a core network.
  • An exemplary communication network will now be described with reference to Figure 1.
  • the communication network 10 may comprise a serving cell 80 that is currently serving a user equipment 50, a neighbouring cell 81 that is a neighbour of the serving cell 80 and a radio network controller (RNC) 30.
  • the serving cell 80 and the neighbouring cell 81 each comprise a base station for serving user equipments within their radio coverage area.
  • the user equipment 50 or another wireless transmit/receive device having a similar function such as a modem chipset, a chip, a module etc., which can also be part of a user equipment or attached as a separate element to a user equipment, or the like, is able to communicate with the serving cell 80 or the neighbouring cell 81 via one or more channels for transmitting several types of data.
  • the communication network 10 may additionally be in communication with various mobility management entities (not shown), which facilitate mobility of user equipments across various carriers, and/or network management entities, which manage resources of the communication network 10.
  • various mobility management entities not shown
  • network management entities which manage resources of the communication network 10.
  • the RNC 30 facilitates provisioning of system information to the user equipment 50 in the communications network 10.
  • the RNC 30 provisions system information corresponding to individual cells, such as serving cell 80 and neighbouring cell 81, to user equipments within the respective cells.
  • the RNC 30 is configured to provision the system information in response to receipt of a notification (hereinafter 'change notification') indicating that a change has been made to system information held by the neighbouring cell 81 (step 201).
  • a notification hereinafter 'change notification'
  • Such a change notification may be received from the neighbouring cell 81 that has received a system information update request from the RNC 30 (step 301).
  • the neighbouring cell 81 In response to receiving the system information update request (step 301), the neighbouring cell 81 updates its Master Information Block (MIB), Scheduling Block (SB) and one or more information elements of System Information Block (SIB) in accordance with the system information update request, and confirms to the RNC 30 that its system information has been updated via the aforementioned notification (step 201).
  • MIB Master Information Block
  • SB Scheduling Block
  • SIB System Information Block
  • the RNC 30 transmits data indicative of the change notification for receipt by the user equipment via the serving cell 80, whereby to cause the user equipment to selectively monitor for a Broadcast Control Channel (BCCH) corresponding to said neighbouring cell in order to update the system information corresponding to the neighbouring cell (step 203).
  • BCCH Broadcast Control Channel
  • the RNC 30 may transmit the message indicated at step 203 automatically, e.g. the RNC 30 may automatically generate the message a predetermined time after transmitting a system information update request to the neighbouring cell 81, i.e. it being implicit that the neighbouring cell 81 has updated the system information as instructed by the RNC 30.
  • the user equipment 50 in response to receiving the change notification, then monitors for the BCCH corresponding to the neighbouring cell 81 in order to obtain system information corresponding to the neighbouring cell 81.
  • This system information may include a number of SIBs and a MIB.
  • the MIB comprises data indicative of a corresponding Public Land Mobile Network (PLMN) identity to which a corresponding cell is associated with and the SIBs comprise system information corresponding to the cell.
  • PLMN Public Land Mobile Network
  • the RNC 30 causes the system information corresponding to the neighbouring cell 81 to be updated, thereby providing a mechanism for maintaining up-to-date neighbouring cell system information.
  • Prior to the invention there were no mechanisms for triggering user equipments to update their stored neighbouring cell system information.
  • the aforementioned change notification comprises data indicative of a MIB value tag corresponding to said neighbouring cell 81.
  • the MIB value tag is indicative of whether or not system broadcasted on a corresponding BCCH has changed.
  • the RNC 30 can indicate to user equipments whether or not system information corresponding to the neighbouring cell 81 has changed.
  • the user equipment 50 in response to receiving the MIB value tag corresponding to the neighbouring cell 81, compares the received MIB value tag with a stored MIB value tag corresponding to the neighbouring cell 81 in order to determine whether or not the stored system information has changed, in which case the user equipment 50 acquires the updated system information by monitoring for the BCCH corresponding to the neighbouring cell 81.
  • the RNC 30 can notify user equipments of changes to the system information by utilising conventional system information elements.
  • the RNC 30 may transmit a Radio Resource Control (RRC) message comprising the change notification, which may include the MIB value tag corresponding to the neighbouring cell 81.
  • RRC Radio Resource Control
  • the RNC 30 could transmit the RRC message to every user equipment under its control, or only to user equipments that are being served by the serving cell 80.
  • the RNC 30 may include change notifications relating to one or more further neighbouring cells in the RRC message.
  • the RRC message may further comprise data indicative of a Primary
  • PSC Scrambling Code
  • the RNC 30 may transmit the aforementioned change notification for receipt by the aforementioned serving cell 80, which then broadcasts the change notification for receipt by the user equipment 50. An overview of this process will now be explained with reference to Figures 4 and 5.
  • the serving cell 80 in response to receiving the aforementioned change notification from the RNC 30 or another network entity (step 401), transmits data indicative of the received change notification for receipt by the user equipment 50.
  • the serving cell 80 may, for example, transmit the received change notification via an RRC message, or it may broadcast the received change notification on a BCCH of the serving cell for receipt by the user equipment 50.
  • the RNC 30 may instruct the serving cell 80 to select a particular transmission mechanism for transmitting the change notification to the user equipment 50.
  • the RNC 30 may instruct the serving cell 80 to transmit the received change notification via an RRC message.
  • the RNC 30 transmits a monitoring notification for receipt by the user equipment 50 (step 505), thereby triggering the user equipment 50 to monitor the BCCH corresponding to the serving cell.
  • the RNC 30 notifies the user equipment 50 when to monitor for and receive transmissions on the BCCH associated with the serving cell 80, thereby relieving the user equipment 50 from repeatedly monitoring the BCCH associated with the serving cell 80. This means that the resources of the user equipment 50 can be utilised more efficiently.
  • the serving cell 80 subsequently broadcasts the aforementioned change notification in one of the SIBs, such as SIB 11, l lbis or 12, transmitted on the BCCH associated therewith.
  • a conventional SIB such as SIB 11, l lbis or 12 may be expanded by addition of an information element for providing the change notification.
  • this information element comprises data indicative of the MIB value tag corresponding to the neighbouring cell 81.
  • the user equipment 50 is notified of changes to the system information corresponding to the neighbouring cell by means of data received via the BCCH of the serving cell 80.
  • the monitoring notification may alternatively be transmitted to the user equipment 50 by the serving cell 80 or the neighbouring cell 81.
  • the user equipment 50 comprises a memory for storing system information corresponding to the neighbouring cell 81, which may have been provided earlier by the serving cell 80 by means of SIBs 11, 1 Ibis and 12, and/or by means of data received on the BCCH associated with the neighbouring cell 81.
  • the user equipment 50 Whilst being served by the serving cell 80, the user equipment 50 receives the change notification (step 601). This causes the user equipment 50 to monitor for the BCCH corresponding to the neighbouring cell 81 in order to update the stored system information corresponding to the neighbouring cell (step 603).
  • the change notification itself comprises sufficient information to enable the user equipment 50 to determine whether or not the neighbour cell system information has changed, and only monitors for the BCCH channel in the event that this information has changed.
  • the user equipment 50 in response to receiving the change notification, the user equipment 50 may monitor for the BCCH associated with the neighbouring cell 81 and acquire the MIB value tag corresponding to the neighbouring cell 81 via the BCCH. This MIB value tag is then compared with the stored system information for the neighbour cell.
  • the user equipment 50 may selectively receive one or more SIBs transmitted on the BCCH corresponding to the neighbouring cell 81 in order to acquire one or more changes to the stored system information for the neighbour cell.
  • each of the SIBs transmitted on the BCCH is accompanied by a value tag for use by user equipments in determining whether or not system information in the corresponding SIB has changed.
  • the user equipment 50 acquires the value tag corresponding thereto, and in the event that the value tag is indicative of a change to the corresponding SIB, the user equipment 50 proceeds with acquiring the corresponding SIB, thereby updating the stored system information for the neighbour cell.
  • the change notification may be received by the user equipment 50 via the aforementioned RRC message.
  • the RRC message may further comprise data indicative of the aforementioned PSC corresponding to the neighbouring cell 81, in which case the user equipment 50 may identify the aforementioned BCCH associated with the neighbouring cell 81 on the basis of the received PSC.
  • the user equipment 50 may receive the change notification via the aforementioned BCCH corresponding to the serving cell 80, in which case the change notification may comprise data indicative of at least in part of one of the aforementioned SIBs 11, l lbis or 12, which may in turn comprise data indicative of the MIB value tag associated with the neighbouring cell 81.
  • the user equipment 50 may continuously or periodically monitor for transmissions on the BCCH associated with the serving cell 80, or, as described above, it may do so in response to receiving the aforementioned monitoring notification from a network entity, such as the RNC 30 or the serving cell 80.
  • the user equipment 50 may monitor the BCCH corresponding to the neighbouring cell 81 on the basis of, for example, whether the neighbouring cell's 81 system information is relevant to the user equipment 50. For example, if the user equipment 50 is transiting into the coverage area of a further cell (not shown in the Figures), of which the neighbouring cell 81 is not considered to be a neighbour, then the user equipment 50 may disregard the change notification.
  • FIG. 2 is a logic flow diagram which describes, broadly, the above exemplary embodiments from the perspective of a RNC 30.
  • Figure 4 is a logic flow diagram which describes, broadly, the above exemplary embodiments from the perspective of a serving cell 80.
  • Figure 6 is a logic flow diagram which describes, broadly, the above exemplary embodiments from the perspective of a user equipment 50.
  • Figures 2, 4 and 6 represent results from executing a computer program or an implementing algorithm stored in the local memory of the RNC 30, the serving cell 80 and the user equipment 50 respectively as well as illustrating the operation of a method and a specific manner in which the processor and memory with computer program/algorithm are configured to cause the RNC 30, the serving cell 80 and the user equipment 50 respectively (or one or more components thereof) to operate.
  • the various blocks shown in these Figures may also be considered as a plurality of coupled logic circuit elements constructed to carry out the associated function(s), or specific result or function of strings of computer program code stored in a computer readable memory.
  • Such blocks and the functions they represent are non-limiting examples, and may be practiced in various components such as integrated circuit chips and modules, and that the exemplary embodiments of this invention may be realized in an apparatus that is embodied as an integrated circuit.
  • the integrated circuit, or circuits may comprise circuitry (as well as possibly firmware) for embodying at least one or more of a data processor or data processors, a digital signal processor or processors, baseband circuitry and radio frequency circuitry that are configurable so as to operate in accordance with the exemplary embodiments of this invention.
  • a serving cell 80 or a neighbouring cell 81 is adapted for communication over a wireless link with a user equipment 50, such as a mobile terminal.
  • the serving cell 80 or the neighbouring cell 81 may be a macro Node B, an eNodeB, a remote radio head, relay station, a femto cell or home NodeB, or other type of base station/cellular network access node.
  • the user equipment 50 may include processing means such as at least one data processor (DP) 50A, storing means such as at least one computer-readable memory (MEM) 50B storing at least one computer program (PROG) 50C, and also communicating means such as a transmitter TX 50D and a receiver RX 50E for bidirectional wireless communications with the serving cell 80 and/or the neighbouring cell 81 via one or more antennas 50F.
  • processing means such as at least one data processor (DP) 50A
  • MEM computer-readable memory
  • PROG computer program
  • the serving cell 80 includes its own processing means such as at least one data processor (DP) 80A, storing means such as at least one computer-readable memory (MEM) 80B storing at least one computer program (PROG) 80C, and communicating means such as a transmitter TX 80D and a receiver RX 80E for bidirectional wireless communications with other devices under its control via one or more antennas 80F.
  • DP data processor
  • MEM computer-readable memory
  • PROG computer program
  • the serving cell 80 also has stored in its local memory at 80B the database which may comprise data indicative of system information transmitted on a BCCH corresponding thereto, as the case may be for the various embodiments detailed above.
  • the neighbouring cell 81 includes its own processing means such as at least one data processor (DP) 81A, storing means such as at least one computer- readable memory (MEM) 8 IB storing at least one computer program (PROG) 81C, and communicating means such as a transmitter TX 8 ID and a receiver RX 8 IE for bidirectional wireless communications with other devices under its control via one or more antennas 8 IF.
  • DP data processor
  • MEM computer- readable memory
  • PROG computer program
  • communicating means such as a transmitter TX 8 ID and a receiver RX 8 IE for bidirectional wireless communications with other devices under its control via one or more antennas 8 IF.
  • the RNC 30 includes processing means such as at least one data processor (DP) 30A, storing means such as at least one computer-readable memory (MEM) 30B storing at least one computer program (PROG) 30C, and communicating means such as a modem 30H for bidirectional communication with the Node B 80 over the control link.
  • processing means such as at least one data processor (DP) 30A
  • MEM computer-readable memory
  • PROG computer program
  • communicating means such as a modem 30H for bidirectional communication with the Node B 80 over the control link.
  • Various embodiments of the user equipment 50 can include, but are not limited to: cellular telephones; data cards, USB dongles, laptop computers, personal portable digital devices having wireless communication capabilities including but not limited to laptop/palmtop/tablet computers, digital cameras and music devices, and Internet appliances.
  • At least one of the PROGs 50C in the user equipment 50 is assumed to include program instructions that, when executed by the associated DP 50A, enable the device to operate in accordance with the exemplary embodiments of this invention, as detailed above.
  • the serving cell 80, the neighbouring cell 81 and the RNC 30 also have software stored in their respective MEMs to implement certain aspects of these teachings.
  • the exemplary embodiments of this invention may be implemented at least in part by computer software stored on the MEM 50B, 80B, 8 IB, 30B which is executable by the DP 50A of the user equipment 50, DP 80A of the serving cell 80, DP 81A of the neighbouring cell 81 and/or DP 30A of the RNC 30, or by hardware, or by a combination of tangibly stored software and hardware (and tangibly stored firmware).
  • Electronic devices implementing these aspects of the invention need not be the entire devices as depicted at Figure 7, but exemplary embodiments may be implemented by one or more components of same such as the above described tangibly stored software, hardware, firmware and DP, or a system on a chip SOC, an application specific integrated circuit ASIC or a digital signal processor DSP.
  • Various embodiments of the computer readable MEMs 50B, 80B, 81B and 30B include any data storage technology type which is suitable to the local technical environment, including but not limited to semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory, removable memory, disc memory, flash memory, DRAM, SRAM, EEPROM and the like.
  • Various embodiments of the DPs 50A, 30A, 81 A and 80A include but are not limited to general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and multi-core processors.

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

Abstract

Des modes de réalisation de l'invention portent sur des procédés, des dispositifs et des programmes informatiques conçus pour faciliter la fourniture d'informations système à un équipement utilisateur (UE) dans un réseau de communication. Un mode de réalisation comprend un appareil destiné à être utilisé pour maintenir des informations système au niveau d'un équipement utilisateur dans un réseau de communication, les informations système correspondant à une pluralité de cellules, la pluralité de cellules comprenant une cellule de desserte desservant actuellement l'équipement utilisateur et une cellule voisine qui est une voisine de la cellule de desserte, l'équipement utilisateur comprenant une mémoire conçue pour stocker au moins des informations système correspondant à la cellule voisine, l'appareil comprenant un système de traitement conçu pour amener l'appareil à : pendant qu'il est desservi par la cellule de desserte, recevoir une notification, ladite notification comprenant des données indicatives d'un changement d'informations système correspondant à la cellule voisine ; et ensuite, surveiller sélectivement un BCCH correspondant à la cellule voisine afin de mettre ainsi à jour les informations système stockées correspondant à la cellule voisine.
PCT/IB2013/055081 2012-06-20 2013-06-20 Système et procédé de communication sans fil Ceased WO2013190501A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1210984.9 2012-06-20
GB201210984A GB2503264A (en) 2012-06-20 2012-06-20 Providing updated neighbouring cell system information to a user equipment

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WO2013190501A2 true WO2013190501A2 (fr) 2013-12-27
WO2013190501A3 WO2013190501A3 (fr) 2014-07-24

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6628946B1 (en) * 1999-05-20 2003-09-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for broadcasting system information in a cellular communications network
EP1553798B1 (fr) * 2004-01-09 2006-04-12 M-Stack Limited Répétition de notification de changement d'informations de système dans un système universel de télécommunications mobiles
KR100725056B1 (ko) * 2005-11-09 2007-06-08 삼성전자주식회사 이동통신 단말기의 인접 셀 관리 방법
EP1909523A1 (fr) * 2006-10-02 2008-04-09 Matsushita Electric Industrial Co., Ltd. Acquisition améliorée d'informations de système d'une autre cellule
US8843115B2 (en) * 2008-06-23 2014-09-23 Qualcomm Incorporated Method and apparatus for managing system information modification in a wireless communication system
US8885577B2 (en) * 2009-06-23 2014-11-11 Motorola Mobility Llc Method of assigning and managing gaps for reading system information of neighboring cells
US9131418B2 (en) * 2010-02-12 2015-09-08 Qualcomm Incorporated Reading and caching of system information to reduce call setup delay
ES2624277T3 (es) * 2010-12-20 2017-07-13 Telefonaktiebolaget Lm Ericsson (Publ) Métodos y nodos para ajustar valores de parámetros del sistema usados en un sistema de comunicación inalámbrica

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GB2503264A (en) 2013-12-25
WO2013190501A3 (fr) 2014-07-24

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