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WO2014161173A1 - Réseau de télécommunications - Google Patents

Réseau de télécommunications Download PDF

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Publication number
WO2014161173A1
WO2014161173A1 PCT/CN2013/073702 CN2013073702W WO2014161173A1 WO 2014161173 A1 WO2014161173 A1 WO 2014161173A1 CN 2013073702 W CN2013073702 W CN 2013073702W WO 2014161173 A1 WO2014161173 A1 WO 2014161173A1
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WO
WIPO (PCT)
Prior art keywords
cell
nct
secondary cell
nct secondary
power node
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/CN2013/073702
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English (en)
Inventor
Gilles Charbit
Erlin Zeng
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.)
Broadcom Corp
Original Assignee
Broadcom 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 Broadcom Corp filed Critical Broadcom Corp
Priority to PCT/CN2013/073702 priority Critical patent/WO2014161173A1/fr
Publication of WO2014161173A1 publication Critical patent/WO2014161173A1/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
    • 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

  • the present invention relates to a cellular telecommunications network.
  • the present invention relates to cell discovery in a cellular telecommunications network.
  • NCT New Carrier Types
  • a Rel-12 NCT Working Item (WI) was contributed to RAN#57 plenary (see RP-121247, 3 GPP WID, "New Carrier Type for LTE", RAN#57, Sept. 2012). It was mentioned in the NCT WI that "minimizing legacy control signalling and common reference signals reduces the interference and overhead level at low-to-medium loads, allowing for higher end-user throughput and improving system spectral efficiency. This seems especially appealing at the cell edge of homogeneous deployments, in a cell range expansion zone of heterogeneous deployments and for the enhanced local area access in the deployment scenario of low-power nodes with/without coverage of an existing macro-node layer.” The NCT will typically be used for small cell deployment.
  • small cell enhancement can benefit from synchronized deployments with respect to small cell search/measurements and interference/resource management. Therefore, time synchronized deployments of small cell clusters are prioritized in the study and new means to achieve such synchronization shall be considered.”
  • RenesasTM made the point that Primary Synchronisation Signals (PSSs) / Secondary Synchronisation Signals (SSSs) should be transmitted on CA- based (non-standalone) NCT cells regardless of whether synchronization can be acquired from a primary cell (PCell).
  • PSS/SSS is transmitted on a NCT cell
  • master information block (MIB) cyclic redundancy check (CRC) checking can be used to prevent false PSS/SSS detection in Rel-12 user equipment (UE) and confirm that the Physical Cell Identity (PCI) as obtained from PSS/SSS detection is not erroneous.
  • MIB master information block
  • CRC cyclic redundancy check
  • legacy UEs in idle state may un-necessarily select an NCT cell: in connected state, the PCell may simply not configure / activate an NCT cell for the legacy UEs, i.e. even if a legacy UE in connected state detects an NCT cell, then the NCT cell is not used as a secondary cell (SCell) for the legacy UE.
  • SCell secondary cell
  • NCT cell could be added to the list of blacklisted cells in the intraFreqBlackCellList broadcasted in system information block (SIB) SIB4.
  • SIB system information block
  • Another approach is that if the Rel-8 MIB on the physical broadcast channel (P-BCH) is not present on the NCT cell, then the legacy UE will not be able to re-select an NCT cell (see Rl-121383, "On PSS/SSS for LTE rel-11 New Carrier Type", RenesasTM, RANl#68bis March 2012).
  • the former approach will be adequate, though this effectively implies a shrinking of the PCI space for legacy UEs which may lead to a shortage of PCIs for legacy cells (for example macro, micro, pico, Home eNB (HeNB)) as there may be many new small NCT cells in a dense network deployment.
  • legacy cells for example macro, micro, pico, Home eNB (HeNB)
  • HeNB Home eNB
  • the latter approach would be an effective way to prevent legacy UEs from attempting to access NCT cells, as according to 3GPP TS 36.331 vl 0.4.0, in such a case (i.e. where certain system information is missing), the UE shall consider the cell as barred, i.e. the UE shall exclude the barred cell as a candidate for cell selection/reselection for 300 seconds.
  • Rel-12 UEs may have some drawbacks for Rel-12 UEs as further described below.
  • a Rel-12 UE acquires synchronization from PSS/SSS on a NCT SCell without using the Rel-8 MIB CRC checking for PCI verification, it could use the reduced Common Reference Signal (CRS) for PCI verification (an agreed assumption in RANI is that a NCT cell can carry 1 reference symbol (RS) port consisting of the Rel-8 CRS Port 0 REs per physical resource block (PRB) and Rel-8 sequence within 1 subframe with 5ms periodicity).
  • RS reference symbol
  • PRB physical resource block
  • Rel-8 sequence within 1 subframe with 5ms periodicity
  • ineffective PCI verification may result in a failure to select an NCT cell due to poor PSS/SSS detection peak when experiencing weak signals in deep fade conditions and/or false PSS/SSS detection due to noisy PSS/SSS detection peak resulting in erroneous DL timing acquisition or erroneous detection / discovery of a NCT cell.
  • a higher detection threshold for a PSS/SSS detector and reduced CRS detector may be needed, which will increase latency and may result in higher NCT cell selection failure (i.e. relatively stronger NCT cells may be selected, even though selection of weaker NCT cells could have been suitable).
  • a Rel-12 UE may need to differentiate between several NCT cell PCIs, where PCI collision may occur, i.e. a NCT cell#A aggregated with a macro cell#A and a neighbour NCT cell#B aggregated with a neighbour macro cell#B have the same PCI value. Further, in case a Rel-12 UE only detects NCT cell#B and reports it to macro cell #A as if NCT cell#A had been detected, the macro cell#A may wrongly assume that NCT cell#B can be aggregated, i.e. carrier aggregation of PCell#A and Scell#B.
  • a method for use in cell discovery in a cellular telecommunications network comprising, at a new carrier type (NCT) secondary cell:
  • MIB master information block
  • apparatus for use in cell discovery in a cellular telecommunications network comprising a processing system configured to, at a new carrier type (NCT) secondary cell:
  • NCT new carrier type
  • MIB master information block
  • a method for use in cell discovery in a cellular telecommunications network comprising, at a user equipment in a new carrier type (NCT) secondary cell:
  • MIB master information block
  • apparatus for use in cell discovery in a cellular telecommunications network comprising a processing system configured to, at a user equipment in a new carrier type (NCT) secondary cell:
  • NCT new carrier type
  • MIB master information block
  • a method for use in cell discovery in a cellular telecommunications network comprising, at a primary serving cell: identifying one or more NCT secondary cells in the neighbour list for a user equipment; and
  • apparatus for use in cell discovery in a cellular telecommunications network comprising a processing system configured to, at a primary serving cell: identify one or more NCT secondary cells in the neighbour list for a user equipment; and
  • a seventh aspect of the present invention there is provided computer software adapted to perform the method of any of the first, third, and fifth aspects of the present invention.
  • Embodiments comprise a computer program product comprising a non- transitory computer-readable storage medium having computer readable instructions stored thereon, the computer readable instructions being executable by a computerized device to cause the computerized device to perform the method of any of the first, third, and fifth aspects of the present invention.
  • Figure 1 shows macro PCell and NCT SCells deployment in a cellular telecommunications network according to embodiments
  • Figure 2 shows P-BCH CRC mask coefficients for different numbers of transmit antenna ports at an eNB according to embodiments
  • FIG. 3 shows a flow diagram according to embodiments
  • Figure 4 shows a flow diagram according to embodiments
  • Figure 5 shows a flow diagram according to embodiments
  • Figure 6 is a simplified block diagram of various example electronic devices and/or apparatus which are suitable for use in practicing embodiments.
  • FIG. 1 shows macro PCell and NCT SCells deployment in a cellular telecommunications network 100 according to embodiments.
  • cellular telecommunications network 100 depicts PCell and SCell aggregation on the same carrier.
  • Figure 1 comprises several other NCT SCells ('a', 'b', 'c', 'd', 'e', 'f , 'g') on carrier frequency #2 within the coverage of macro cell PCell and also several other NCT SCells ( , 'j')on carrier frequency #2 which are outside the coverage of macro cell PCell.
  • Embodiments introduce a NCT-specific MIB for phase- 1 NCT cell discovery (i.e. a non-standalone NCT cell).
  • an NCT SCell is aggregated with a legacy PCell (typically a macro cell, though could be a smaller cell such as a micro, pico or femto cell).
  • Embodiments comprise measures, including methods, apparatus, computer software and computer program products, for use in cell discovery in a cellular telecommunications network.
  • a master information block (MIB) specific to a NCT secondary cell is generated at the new carrier type (NCT) secondary cell, for example at a basestation of the NCT secondary cell, and the generated NCT secondary cell specific MIB is caused to be transmitted to at least one UE.
  • MIB master information block
  • NCT new carrier type
  • the transmittal of the NCT specific MIB comprises broadcasting to multiple UEs in the NCT secondary cell via a physical broadcast channel (P-BCH).
  • P-BCH physical broadcast channel
  • the transmitted NCT secondary cell specific MIB is received at a UE in the NCT secondary cell and is utilised by the UE in cell discovery.
  • the cellular telecommunications network comprises a Long Term Evolution (LTE) or Long Term Evolution Advanced (LTE-A) network and the NCT secondary cell comprises an evolved Node B (eNB).
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Advanced
  • eNB evolved Node B
  • the cellular telecommunications network comprises a heterogeneous network in which the primary serving cell comprises a relatively high power node and the NCT secondary cell comprises a relatively low power node, the relatively low power node having uplink and/or downlink coverage at least partially overlapping with the relatively high power node.
  • the relatively high power node comprises a macro cell and the relatively low power node comprises a micro, pico or femto cell.
  • the relatively high power node uses at least one carrier frequency which is the same as at least one carrier frequency of the relatively low power node.
  • the transmitted NCT secondary cell specific MIB payload contains new fields.
  • the information element (IE) Cellldentity is used to unambiguously identify a cell within a public land mobile network (PLMN) (see for example 3GPP TS 36.331, vlO.5.0, section 6.3.4).
  • PLMN public land mobile network
  • a known Cellldentity information element is formed as follows:
  • the cell Global ID cellldentity is indicated to UEs in SIB1.
  • the cell Global ID cellldentity is based on the cellldentity of an associated PCell so is the same for all the NCT cells that can be aggregated with a given legacy PCell.
  • a new field of the NCT secondary cell specific MIB payload comprises a cell identity mask.
  • the new carrier type (NCT) secondary cell calculates a cell identity mask on the basis of a cell global identifier (CGI) of a cell, different to the NCT secondary cell, and inserts the calculated cell identity mask into the generated NCT secondary cell specific MIB which is transmitted to the at least one UE.
  • CGI cell global identifier
  • the CGI comprises 28 bits and the calculated cell identity mask comprises less than 28 bits.
  • the calculated cell identity mask comprises, 4 bits, for example the 4 least significant bits (LSBs) of the CGI.
  • the different cell in relation to which the NCT secondary cell calculates a cell identity mask on the basis of a CGI comprises a primary serving cell for the at least one UE.
  • the NCT secondary cell is capable of performing carrier aggregation with the primary serving cell in relation to the at least one UE, for example as depicted in Figure 1.
  • the NCT secondary cell comprises a non-standalone NCT secondary cell which is unable to function outside the coverage of the primary serving cell.
  • a new field of the NCT secondary cell specific MIB payload comprises a virtual cell index.
  • Embodiments comprise the NCT secondary cell calculating a virtual cell index which uniquely identifies the NCT secondary cell, and inserting the calculated NCT secondary cell virtual cell index into the generated NCT secondary cell specific MIB which is transmitted to the at least one UE.
  • the calculated NCT secondary cell virtual cell index comprises a bitmap expansion field for the physical cell identity (PCI) of the NCT secondary cell.
  • the calculated NCT secondary cell specific virtual cell index comprises 2 bits.
  • a new field of the MIB payload comprises an L-bit bitmap virtualcelllndex field to expand the PCI field to 2 L *M, where M ⁇ 504 is the size of subset of PCIs allocated to the NCT cells in the network.
  • M ⁇ 504 is the size of subset of PCIs allocated to the NCT cells in the network.
  • an L-bit bitmap virtual cell index field is added to the new MIB payload and used in conjunction with the PCI of the NCT-cell to uniquely identify a cell.
  • two NCT cells associated with the same serving PCell may have the same PCI, but a different L-bit bitmap field.
  • Embodiments therefore allow expansion of the PCI field to 2 L *504.
  • a Rel-12 UE will first detect the PSS/SSS and perform MIB CRC checking to verify the PCI. Then, the Rel- 12 UE can check the virtual cell index which is NCT-cell specific.
  • the payload size of the generated NCT secondary cell specific MIB comprises 24 bits.
  • the NCT-specific MIB does not include the Rel-8 specified fields for a MIB, i.e. dl-banctwidth, phich-Config, systemFrameNumber. In embodiments, such fields for the NCT cell are instead indicated to the UE by a priary serving cell via dedicated signalling.
  • the generated NCT secondary cell specific MIB does not comprise data associated with one or more of downlink system bandwidth, system frame number, and physical hybrid automatic repeat request indicator channel (PHCIH) configuration.
  • PCIH physical hybrid automatic repeat request indicator channel
  • Figure 2 shows P-BCH CRC mask coefficients for different numbers of transmit antenna ports at an eNB according to embodiments.
  • a NTC-specific MIB CRC is scrambled with a new CRC mask for single transmit antenna port, 2 transmit antenna ports, and 4 transmit antenna ports as indicated by 1 *, 2*, and 4* in the table of Figure 2 (the Rel-8 CRC masks are indicated by 1, 2, 4 in the table of Figure 2).
  • the new CRC masks prevent NCT cell selection by legacy UEs .
  • the new CRC mask for PBCH for phase- 1 NCT may assume antenna port #0 which is mapped to the reduced CRS.
  • a new CRC mask is provided, as there may be a new 2 transmit diversity mode or 4 transmit diversity mode for P-BCH transmission in phase 1 NCT that will not be based on CRS.
  • the NTC-specific MIB CRC and new CRC mask have size 16 bits as in Rel-8 specifications
  • the generation of the NCT specific MIB may for example comprise scrambling the NCT specific MIB with a cyclic redundancy check (CRC) mask specific to a number of transmit antenna ports used by a basestation of the NCT secondary cell.
  • CRC cyclic redundancy check
  • the NTC secondary cell specific CRC mask may for example comprise 16 bits.
  • the NCT secondary cell specific CRC mask may for example indicate 1, 2 or 4 transmit antenna ports.
  • the legacy PCell indicates to the UE the necessary system information for a list of neighbour cells that the UE may be moving towards.
  • system information is transmitted to a given UE via dedicated signalling, for example radio resource control (RRC) signalling.
  • RRC radio resource control
  • the legacy PCell is assumed not to know beforehand with certainty or sufficient accuracy whose NCT cell specific coverage the UE is entering.
  • Embodiments comprise a UE receiving, from the primary serving cell via dedicated signalling, system information data associated with the NCT secondary cell and zero or more other NCT secondary cells in the neighbour list for the user equipment.
  • the system information data received by the UE via dedicated signalling comprises one or more of configuration data for one or more reference signals transmitted by the NCT secondary cell and the zero or more other NCT secondary cells, and system information data for accessing the NCT secondary cell and the zero or more other NCT secondary cells.
  • system information data for accessing the NCT secondary cell and the zero or more other NCT secondary cells comprises data associated with one or more of:
  • NCT secondary cell access-related information for cell selection i.e. Rel-8 SIB1 contents
  • radio resource configuration information common to user equipments in the NCT secondary cell and the zero or more other NCT secondary cells i.e. Rel-8 SIB2 contents.
  • Embodiments comprise measures performed at a primary serving cell, including methods, apparatus, computer software and computer program products, for use in cell discovery in a cellular telecommunications network.
  • a primary serving cell At the primary serving cell, one or more NCT secondary cells in the neighbour list for a UE are identified.
  • Transmittal to the UE, via dedicated signalling, of system information data associated with the one or more identified NCT secondary cells in the neighbour list for the UE is then caused.
  • the system information data received via dedicated signalling comprises one or more of configuration data for one or more reference signals transmitted by the NCT secondary cell and the zero or more other NCT secondary cells, and system information data for accessing the NCT secondary cell and the zero or more other NCT secondary cells.
  • the system information data for accessing the NCT secondary cell and the zero or more other NCT secondary cells comprises data associated with one or more of downlink system bandwidth, system frame number, physical hybrid automatic repeat request indicator channel (PHCIH) configuration, NCT secondary cell access-related information for cell selection, and radio resource configuration information common to user equipments in the NCT secondary cell and the zero or more other NCT secondary cells
  • PHCIH physical hybrid automatic repeat request indicator channel
  • the NCT-specific MIB of embodiments allows effective PCI verification in Rel-12 UEs to mitigate PSS/SSS false detection, failure to select a NCT cell, and PCI collision problems described above.
  • none of the Rel-8 MIB fields are included in the NTC- specific MIB. These Rel-8 MIB fields can be configured to Rel-12 UEs via dedicated signaling on an associated PCell.
  • payload encoding and NTC- specific MIB CRC encoding may be encoded as in the relevant 3 GPP specifications.
  • the CRC mask for P-BCH is applied to the CRC in a similar manner to the existing Rel-8 CRC masks.
  • a known Rel-8 MIB is formed as follows:
  • Embodiments provide LI signalling reduction for NCT small cell discovery.
  • Embodiments assist in preventing NCT cell selection by legacy UEs and avoid shortage of PCIs for legacy cells (i.e. pre-Rel-12 cells) due to excessive NCT cell blacklisting.
  • Embodiments assist in mitigating false PSS/SSS detection, erroneous NCT cell discovery, and erroneous DL timing acquisition by UEs (in particular Rel-12 UEs). Embodiments also assist in mitigating failure to select an NCT cell and avoiding PCI collision for UEs (in particular Rel-12 UEs).
  • Figure 3 shows a flow diagram according to embodiments.
  • Figure 3 depicts measures for use in cell discovery in a cellular telecommunications network from the perspective of a network entity/node in the form of a NCT SCell.
  • Item 300 comprises the NCT SCell generating a master information block (MIB) specific to the NCT secondary cell.
  • MIB master information block
  • Item 302 comprises the NCT SCell causing transmittal of the generated NCT secondary cell specific MIB from the network node to at least one user equipment.
  • Figure 4 shows a flow diagram according to embodiments.
  • Figure 4 depicts measures for use in cell discovery in a cellular telecommunications network from the perspective of a UE in a NCT SCell.
  • Item 400 comprises the UE receiving a master information block (MIB) specific to the NCT secondary cell.
  • MIB master information block
  • Item 402 comprises the UE utilising the received NCT secondary cell specific MIB in cell discovery.
  • Figure 5 shows a flow diagram according to embodiments.
  • Figure 5 depicts measures for use in cell discovery in a cellular telecommunications network from the perspective of a network entity/node in the form of a primary serving cell.
  • Item 500 comprises the primary serving cell identifying one or more NCT secondary cells in the neighbour list for a user equipment.
  • Item 500 comprises the primary serving cell causing transmittal to the user equipment, via dedicated signalling, of system information data associated with the one or more identified NCT secondary cells in the neighbour list for the user equipment.
  • Figures 3-5 represent results from executing a computer program or an implementing algorithm stored in the local memory of UE 50 (see Figure 6 and corresponding description below) or a network entity (such as a radio network controller (RNC) (not shown), primary serving cell 80 or NCT SCell 110) respectively as well as illustrating the operation of a method and a specific manner in which the processing system and/or processor and memory with computer program/algorithm are configured to cause UE 50 or the network entity respectively (or one or more components thereof) to operate.
  • RNC radio network controller
  • 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 embodiments of the present 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 embodiments of the present invention.
  • primary serving cell 80 is adapted for communication over a wireless link S with a UE 50, such as a mobile terminal.
  • a NCT SCell 110 is adapted for communication over a wireless link N with UE 50.
  • Primary serving cell 80 and/or NCT SCell 110 each may comprise 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.
  • UE 50 may include processing means such as a processing system and/or at least one data processor (DP) 5 OA, storing means such as at least one computer- readable memory (MEM) 5 OB 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 primary serving cell 80 and/or NCT SCell 110 and/or any other neighbouring cells (not shown) via one or more antennas 5 OF.
  • processing means such as a processing system and/or at least one data processor (DP) 5 OA
  • MEM computer- readable memory
  • PROG computer program
  • TX 50D transmitter
  • receiver RX 50E for bidirectional wireless communications with the primary serving cell 80 and/or NCT SCell 110 and/or any other neighbouring cells (not shown) via one or more antennas 5 OF.
  • apparatus such as a modem which does not comprise an antenna.
  • Primary serving cell 80 includes its own processing means such as a processing system and/or 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
  • control link S which in the 3 GPP cellular system may be implemented as an Iub interface or in E-UTRAN as an SI interface, coupling the primary serving cell 80 with network entity 30, and over which the network entity 30 and the primary serving cell 80 may exchange control messages, such as system information update requests and/or change notifications.
  • Network entity 30 may for example comprise an RNC, Mobility Management Entity (MME), or suchlike.
  • NCT SCell 110 includes its own processing means such as a processing system and/or at least one data processor (DP) 11 OA, storing means such as at least one computer-readable memory (MEM) HOB storing at least one computer program (PROG) HOC, and communicating means such as a transmitter TX HOD and a receiver RX 110E for bidirectional wireless communications with other devices under its control via one or more antennas 110F.
  • DP data processor
  • MEM computer-readable memory
  • PROG computer program
  • Network entity 30 includes processing means such as a processing system and/or at least one data processor (DP) 30A, storing means such as at least one computer-readable memory (MEM) 3 OB storing at least one computer program (PROG) 30C, and communicating means such as a modem 30H for bidirectional communication with primary serving cell 80 over control link S or with NCT SCell 110 over control link N.
  • processing means such as a processing system and/or at least one data processor (DP) 30A
  • storing means such as at least one computer-readable memory (MEM) 3 OB storing at least one computer program (PROG) 30C
  • communicating means such as a modem 30H for bidirectional communication with primary serving cell 80 over control link S or with NCT SCell 110 over control link N.
  • any of those devices may include as part of wireless communicating means a modem which may be inbuilt on a RF front end chip within those devices 50, 80, 110 30 and which chip also carries the TX 50D/80D/110D/30D and the RX 50E/80E/110E/30E.
  • UE 50 can include, but are not limited to: cellular phones (or 'mobile' phones) including so-called smartphones; data cards, USB dongles, laptop computers, personal portable digital devices having wireless communication capabilities including but not limited to laptop/palmtop/tablet/phablet computers, digital cameras and music devices, and Internet appliances.
  • cellular phones or 'mobile' phones
  • data cards including so-called smartphones
  • USB dongles including so-called smartphones
  • laptop computers personal portable digital devices having wireless communication capabilities including but not limited to laptop/palmtop/tablet/phablet computers, digital cameras and music devices, and Internet appliances.
  • At least one of the PROGs 50C in UE 50 is assumed to include program instructions that, when executed by the associated DP 5 OA, enable the device to operate in accordance with embodiments of the present invention, as detailed above.
  • Primary serving cell 80, NCT SCell 110 and network entity 30 also have software stored in their respective MEMs to implement certain aspects of these teachings.
  • embodiments of this invention may be implemented at least in part by computer software stored on the MEM 50B, 80B, HOB, 30B which is executable by the DP 50A of UE 50, DP 80A of primary serving cell 80, DP 110A of NCT SCell 110 and/or DP 30A of network entity 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 6, but 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, HOB 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, 11 OA and 80A include but are not limited to general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and multi-core processors.
  • 'legacy UE' herein refers to a UE which does not support the enhanced functionality of embodiments described herein.

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  • 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 des mesures (procédés, appareil, logiciel informatique et produits programmes d'ordinateur) pouvant être utilisées pour rechercher une cellule dans un réseau de télécommunications cellulaires. Un bloc d'informations principal (MIB) spécifique à une cellule secondaire NCT est généré à une nouvelle cellule secondaire de type porteuse (NCT). Le MIB généré spécifique à une cellule secondaire NCT est transmis à au moins un équipement d'utilisateur.
PCT/CN2013/073702 2013-04-03 2013-04-03 Réseau de télécommunications Ceased WO2014161173A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101873708A (zh) * 2009-04-27 2010-10-27 大唐移动通信设备有限公司 一种数据传输的方法、系统及装置
WO2013025547A2 (fr) * 2011-08-12 2013-02-21 Interdigital Patent Holdings, Inc. Fonctionnement souple d'une bande de fréquences dans des systèmes sans fil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101873708A (zh) * 2009-04-27 2010-10-27 大唐移动通信设备有限公司 一种数据传输的方法、系统及装置
WO2013025547A2 (fr) * 2011-08-12 2013-02-21 Interdigital Patent Holdings, Inc. Fonctionnement souple d'une bande de fréquences dans des systèmes sans fil

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HUAWEI ET AL.: "Discussion on the new carrier types", 3GPP TSG-RAN WG4 MEETING #62BIS, R4-121262, 26 March 2012 (2012-03-26) *
NOKIA SIEMENS NETWORKS ET AL.: "al., New Carrier Type for Synchronized Carriers", 3GPP TSG-RAN WG1 MEETING #69, RL-122401, 21 May 2012 (2012-05-21) *
ZTE: "On synchronized New Carrier Type", 3GPP TSG-RAN WG1 MEETING #69, RL-122124, 21 May 2012 (2012-05-21) *

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