US20110105105A1 - Methods and Arrangements in a Wireless Communication System - Google Patents

Methods and Arrangements in a Wireless Communication System Download PDF

Info

Publication number
US20110105105A1
US20110105105A1 US12/833,545 US83354510A US2011105105A1 US 20110105105 A1 US20110105105 A1 US 20110105105A1 US 83354510 A US83354510 A US 83354510A US 2011105105 A1 US2011105105 A1 US 2011105105A1
Authority
US
United States
Prior art keywords
cell
information
system information
apply
broadcasted
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.)
Abandoned
Application number
US12/833,545
Other languages
English (en)
Inventor
Mats Fredrik Sâgfors
Robert Baldemair
Magnus Lindström
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US12/833,545 priority Critical patent/US20110105105A1/en
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) reassignment TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LINDSTROM, MAGNUS, BALDEMAIR, ROBERT, SAGFORS, MATS
Publication of US20110105105A1 publication Critical patent/US20110105105A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information

Definitions

  • the present invention generally relates to methods and arrangements in a wireless communication system supporting carrier aggregation. In particular it relates to methods and arrangements for transmitting and applying system information broadcasted in multiple aggregated cells.
  • the Universal Mobile Telecommunication System is one of the 3G mobile communication technologies designed to succeed GSM.
  • 3GPP Long Term Evolution LTE is a project within the 3 rd Generation Partnership Project (3GPP) to improve the UMTS standard to cope with future requirements in terms of improved services such as higher data rates, improved efficiency, and lowered costs.
  • the Universal Terrestrial Radio Access Network (UTRAN) is the radio access network of a UMTS system and evolved UTRAN (E-UTRAN) is the radio access network of an LTE system. As illustrated in FIG.
  • a radio access network typically comprises user equipment (UE) 150 wirelessly connected to radio base stations (RBS) 110 a - c , commonly referred to as NodeB (NB) in UTRAN and eNodeB (eNB) in E-UTRAN.
  • UE user equipment
  • RBS radio base stations
  • NB NodeB
  • eNB eNodeB
  • E-UTRA according to Release 8 (Rel-8) of the 3GPP specifications supports bandwidths up to 20 MHz.
  • one of the requirements of future releases of this standard is expected to be the support of bandwidths larger than 20 MHz.
  • a further important requirement on such releases is to assure backward compatibility with Rel-8.
  • This should also include spectrum compatibility. That would imply that a future-release carrier, wider than 20 MHz, should appear as a number of Rel-8 carriers to a Rel-8 UE.
  • Each such carrier is sometimes referred to as a Component Carrier (CC).
  • CC Component Carrier
  • Carrier aggregation implies that a future-release UE can receive and send on multiple CCs, where the CCs have, or at least have the possibility of having, the same structure as a Rel-8 carrier.
  • Carrier aggregation is illustrated in FIG. 2 a where five CCs 210 , each of 20 MHz bandwidth, have been aggregated together to form an aggregated bandwidth 220 of 100 MHz.
  • Carrier aggregation is planned for Release 10 (Rel-10) of the 3GPP LTE specifications.
  • Carriers can be aggregated contiguously, as illustrated in FIG. 2 a , or they may be aggregated from discontinuous portions in the frequency domain (sometimes also called spectrum aggregation).
  • FIG. 2 b illustrates schematically an example with non-contiguous carriers.
  • the LTE carrier or spectrum aggregation has some similarities with concepts such as Dual- or Multi-Carrier (DC or MC) HSPA, where one or multiple carriers in UTRAN are combined.
  • DC or MC Dual- or Multi-Carrier
  • carrier aggregation can be viewed as a UE-centric concept, in that one UE may be configured to use, e.g., the two left-most CCs ( 230 ) in FIG. 2 b , another UE may be configured to use only a single CC such as the right-most CC ( 250 ) in FIG. 2 b , and a third UE may be configured to use all of the CC ( 230 , 240 , 250 ) depicted in FIG. 2 b .
  • a UE may be configured with component carriers (CCs), on a carrier of a specific frequency within the same frequency band or within different frequency bands.
  • CCs component carriers
  • Uplink (UL) and downlink (DL) CCs are configured independently of each other, meaning that they are not necessarily configured as UL/DL pairs as in Rel-8/9 of the 3GPP LTE specifications.
  • Asymmetric configurations are possible, where the number of configured UL CCs differ from the number of configured DL CCs.
  • the UE will be configured with one UL/DL CC pair on which it makes the initial random access.
  • These CCs are called Primary Component Carriers (PCC).
  • PCC Primary Component Carriers
  • SCC Secondary Component Carriers
  • a carrier is a portion of the frequency spectrum that can be used for transmission in UL and/or DL.
  • the notion of cell is normally used to denote the radio network object that can be uniquely identified by a UE.
  • UTRAN e.g., a cell is identified thanks to a cell identification that is broadcasted over a geographical area from one UTRAN access point.
  • a cell is associated with a single pair of UL and DL carriers in FDD, and a single carrier that provides both UL and DL resources, if the mode is TDD.
  • CC component carriers
  • cell being the radio network object associated with a certain CC—a cell that may be identified by the UE—a UE using carrier aggregation in connected mode may also be referred to as being connected to multiple aggregated cells: one primary cell (referred to as PCC above, and for which notations such as PCell, primary serving cell and serving cell are also used), and additional configured CCs that are part of another set of secondary cells (referred to as SCC above, and for which notations such as SCell, secondary serving cell, and secondary cell are also used).
  • PCC primary cell
  • SCC additional configured CCs that are part of another set of secondary cells
  • a particular and relevant example of a plausible carrier aggregation scenario includes the case when two or more Rel-8 downlink carriers/cells, are aggregated for a UE. It should be noted that carrier aggregation is typically and mainly relevant for a connected UE, which is a UE that is actively involved in transmission to and from the eNB, and thus has a connection with the eNB controlling the aggregated carriers/cells.
  • the aggregated carriers/cells may thus also be available for Rel-8 UEs, meaning that each of the carriers/cells may be independently available for single-cell operation.
  • a single-cell operation includes idle mode camping when the UE is typically inactive, and connected mode operation in single-cell mode. Therefore, these Rel-8 compatible carriers/cells will have to provide System Information (SI) that is broadcasted in the cell, such that UEs may perform, e.g., idle mode camping and cell selection according to the rules set by the parameters broadcasted in SI.
  • SI System Information
  • Other sets of particular relevance that also must be broadcast in each of the Rel-8 carriers/cells are parameters related but not limited to:
  • SI also includes, e.g., sets of parameters related to cell and radio access technology (RAT) selection.
  • RAT radio access technology
  • “Common parameters” is used to denote parameters that many or all UEs in a cell are required to acquire according to specific rules in specifications. Such common parameters will typically be read and used by many UEs. Deviations from this general rule may be specified.
  • the SI of relevance for a connected mode UE is distributed in the Master Information Block (MIB), and the first two System Information Blocks (SIB 1 and SIB 2 ). It may be specified that the UE should maintain updated information of this required SI, as specified in the 3GPP standard. When the SI changes the UEs are notified by different means, in order for them to re-acquire the required SI.
  • MIB Master Information Block
  • SIB 1 and SIB 2 the first two System Information Blocks
  • non-backwards compatible carriers/cells may be available for idle mode camping and single-cell operation.
  • these carriers/cells will also have to broadcast SI with sets of cell-specific parameters similar to the ones described above.
  • the DL of a cell will typically include broadcast of SI parameters that are relevant for this cell, including parameters of relevance both for the DL and the UL.
  • SI parameters that are relevant for this cell, including parameters of relevance both for the DL and the UL.
  • broadcast parameters associated with a second cell on the DL of a first cell may not be preferable, since the parameters associated with the second cell should then often also be broadcast on the DL of the second cell. This duplication is not desirable, and 3GPP has therefore agreed to, in Rel-10, not broadcast information related to a second cell on a first cell.
  • a UE 310 will first be connected to a single cell, also called the primary cell, following an RRC connection setup procedure 301 similar to those known from Rel-8. Only then, the eNB 320 may, based on different criteria, decide to configure the UE 310 for reception (DL) and transmission (UL) on multiple aggregated carriers/cells. This means that the eNB 320 may send a configuration message, typically an RRCConnectionReconfiguration message 302 , including information about the additional UL and DL CCs that the UE is supposed to take into use. The UE replies to the configuration message, typically with an RRCConnection ReconfigurationComplete message 303 .
  • Such a connected mode UE will now have knowledge of multiple UL and DL CCs, which may aggregate up to a very large bandwidth, and the UE is now ready to be scheduled on all of the CCs—sometimes on individual CC, and sometimes on all CC at the same time. Said in another way, the UE is now ready to be scheduled on the DL and/or the UL in all of the cells.
  • SI available on multiple DL CC or cells that the UE has been configured with.
  • this required SI is of relevance also for UEs operating in single-cell mode, such as for Rel-8 UEs that lack the capability for carrier aggregation.
  • SI of relevance for single-cell operation is broadcasted in all cells in order to, e.g., provide backwards compatibility, but when a cell should be used for carrier aggregation this single-cell SI is not optimal.
  • the primary cell that includes both a configuration of a DL and an UL, and that the UE is configured to aggregate one additional DL carrier of a secondary cell.
  • SI of relevance to the DL carriers is broadcasted in both the primary and the secondary cell.
  • the SI broadcasted on each of the cells will provide SI of relevance also for single-carrier operation.
  • the SI broadcasted in the secondary cell will include information about a corresponding UL configuration, including, e.g., UL bandwidth and frequency, RACH, PUCCH and PUSCH parameters.
  • an RBS is in control of three UL and DL carriers in three cells, here denoted UL 1 /DL 1 /cell 1 , UL 2 /DL 2 /cell 2 , and UL 3 /DL 3 /cell 3 .
  • the carriers When operated in single-cell mode, the carriers are coupled such that UL 1 is operated together with DL 1 , UL 2 with DL 2 , and UL 3 with DL 3 , respectively.
  • any SI of relevance for ULx/DLx is broadcasted on cellx, as illustrated in FIG. 2 c .
  • Note that the example does not rule out that ULx is on the same frequency as DLx, which is the case for a TDD mode.
  • a UE is connected to the cell 2 defined by DL 2 , i.e., the UE 310 follows known Rel-8 procedures, reads required SI on DL 2 , and uses UL 2 for UL transmissions (state 304 in signaling diagram of FIG. 3 b ).
  • the eNB 320 now wants to configure the UE 310 with two additional DL carriers, since the eNB concludes that the UE needs a larger DL bandwidth.
  • the eNB sends a configuration message in 305 including information that the UE may additionally use DL 1 in cell 1 and DL 3 in cell 3 , in addition to the already existing DL 2 .
  • RA Random Access
  • both cell's SI include RA parameters, offering the UE a possibility to perform RA on both of the UL carriers.
  • the eNB wants to constrain the UE to perform RA only on one particular of the available ULs. With present art, this is not possible, since the UE will read SI comprising RA parameters on both cells and thus perform RA on both ULs.
  • a further example concerns, e.g., PUCCH control. It has recently been agreed that it shall be possible to provide all PUCCH control information on one single UL carrier, regardless of how many UL and DL carriers that are configured for a UE. In the examples illustrated above, each cell will provide independent PUCCH parameters. However, the UE should only follow PUCCH parameters broadcasted on one of the cells.
  • Each of the aggregated cells may provide independent timer and constant values that might be different in value.
  • the timers and constants may not be relevant per cell, but rather per UE.
  • a UE may, e.g., maintain only a single timer t 1 that expires when the value T 1 is reached, but SI on all the cells is offering different values for this T 1 , and it is unclear which one of the values that the UE should apply.
  • a method for a user equipment in a wireless communication system supporting carrier aggregation is provided.
  • the user equipment is configured to receive data from a radio base station in a first cell, and the radio base station is configured to broadcast system information comprising configuration parameters in the first and a second cell.
  • the method comprises receiving configuration information for an aggregation of the first and the second cell from the radio base station, as well as information on how to apply the system information broadcasted in the second cell from the radio base station.
  • a method for a radio base station in a wireless communication system supporting carrier aggregation is provided.
  • the radio base station is configured to transmit data to a user equipment in a first cell.
  • the method comprises broadcasting system information comprising configuration parameters in the first and in a second cell, and transmitting configuration information for an aggregation of the first and second cells to the user equipment. It also comprises transmitting information on how to apply the system information broadcasted in the second cell to the user equipment.
  • a user equipment configured to be used in a wireless communication system supporting carrier aggregation.
  • the user equipment is also configured to receive data from a radio base station in a first cell, and system information comprising configuration parameters is broadcasted in the first and a second cell by the radio base station.
  • the user equipment comprises a receiving unit adapted to receive configuration information for an aggregation of the first and the second cell, and information on how to apply the system information broadcasted in the second cell from the radio base station.
  • a radio base station configured to be used in a wireless communication system supporting carrier aggregation, and to transmit data to a user equipment in a first cell.
  • the radio base station comprises a broadcasting unit adapted to broadcast system information comprising configuration parameters in the first and in a second cell. It also comprises a transmitting unit adapted to transmit configuration information for an aggregation of the first and second cells, and information on how to apply the system information broadcasted in the second cell to the user equipment.
  • An advantage of embodiments of the present invention is that they allow carrier aggregation in a flexible way, such that configuration information that is common to both single-cell operation and carrier aggregation operation is read and obeyed by all UEs, but where additional parameters and rules are provided for UEs operating in carrier aggregation mode.
  • Another advantage of embodiments of the present invention is that they provide a lean way of signaling, such that the overhead in signaling can be minimized.
  • a further advantage of embodiments of the present invention is that it is possible to configure a UE specific, asymmetric UL & DL configuration, where each UL and DL pair corresponds to Rel-8 backwards compatible cells.
  • Still another advantage of embodiments of the present invention is that it makes it possible to control, e.g., the RACH selection and pooling in carrier aggregation mode, such that a UE can be assigned a particular RACH resource, even if SI in the multiple aggregated cells provide different sets of RACH resources, primarily intended for single-cell use.
  • FIG. 1 illustrates schematically a conventional radio access network wherein the present invention may be implemented.
  • FIGS. 2 a - b illustrate schematically carrier aggregation according to prior art.
  • FIG. 2 c illustrates schematically example uplink and downlink carriers and the corresponding system information flow according to prior art.
  • FIGS. 3 a - b illustrate signaling diagrams for the RRC connection reconfiguration procedure according to prior art.
  • FIG. 4 is a flowchart of the method in the user equipment according to embodiments of the present invention.
  • FIG. 5 is a flowchart of the method in the radio base station according to embodiments of the present invention.
  • FIGS. 6 a - b illustrate schematically a block diagram of a UE and a UE control unit respectively, according to embodiments of the present invention.
  • FIGS. 7 a - b illustrate schematically a block diagram of an eNB and a eNB control unit respectively, according to embodiments of the present invention.
  • FIG. 8 illustrates schematically a block diagram of a UE and an eNB according to embodiments of the present invention.
  • the problem that system information (SI) broadcasted in the cells of a wireless communication system is not adapted for a UE that operates in a carrier aggregation mode is addressed by a solution where a UE, when it is configured by the eNB to aggregate two cells, receives information from the eNB on how to apply the SI broadcasted in the second aggregated cell.
  • the information may also include configuration parameters that override or replace SI parameters broadcasted in the second cell.
  • Particular embodiments include:
  • the eNB is configured to broadcast SI that comprises a set of configuration parameters, and to transmit information, to a UE operating in carrier aggregation mode, which releases the UE of applying at least some of the parameters in the set of configuration parameters that are broadcasted.
  • SI that comprises a set of configuration parameters
  • a UE that is configured to receive data and read SI in a first cell
  • the UE is informed by the eNB on how it should apply the broadcasted SI in the second cell.
  • the eNB may in one embodiment instruct the UE to follow, i.e., read and apply, SI from only the first cell.
  • Further embodiments of the eNB may comprise the following embodiments implemented either each one by itself or in combination with other embodiments:
  • a basic concept of embodiments of the present invention is thus to provide a method of reading, applying and overriding SI configuration parameters of relevance for single cell operation, such that an eNB can configure the UE to read and apply SI configuration parameters in a UE specific way, when it is operating in carrier aggregation mode.
  • an eNB is in control of three UL and DL carriers in three cells, here denoted UL 1 /DL 1 /cell 1 , UL 2 /DL 2 /cell 2 , and UL 3 /DL 3 /cell 3 .
  • the DL carriers provide SI of relevance for each DL & UL pair, such that ULx is configured in the SI provided on DLx in cellx.
  • a UE is establishing a connection to the cell defined by the SI on a first DL carrier (e.g., cell 1 and DL 1 ), i.e., after the establishment, the UE is prepared to send and receive (i.e., to be scheduled) on UL 1 and DL 1 , respectively.
  • the eNB now configures the UE to also use DL 2 in cell 2 , typically by sending the dedicated RRCConnectionReconfiguration message, comprising configuration information for an aggregation of cell 1 and cell 2 and thus including information about the additional DL 2 and cell 2 that the UE is supposed to take into use.
  • the eNB may send a dedicated configuration message to the UE, which configures the UE to read and apply SI broadcasted in cell 1 and cell 2 in a UE specific way.
  • the dedicated configuration message thus comprises information on how to apply SI broadcasted in cell 2 .
  • the dedicated configuration message may be the same message as the one used for transmitting configuration information for the aggregation of cell and cell 2 , and may, e.g., be the RRC Connection Reconfiguration message.
  • the message thus includes configuration parameters of relevance for DL 2 and cell 2 , such that the UE, after receiving the configuration message, is prepared to receive data also on DL 2 , and information related to the relevance of SI broadcasted on cell 2 .
  • the information related to the relevance of SI broadcasted on cell 2 may in a first alternative embodiment comprise an instruction to obey (or apply) some of the parameters and related functionality read in the SI broadcasted on cell 2 , and to not obey others.
  • the information may comprise an instruction to the UE to apply or not apply SI broadcasted on cell 2 .
  • the information related to the relevance of SI broadcasted on cell 2 may comprise configuration parameters that override or replace the configuration parameters read in the SI broadcasted on cell 2 .
  • the third embodiment may be combined with either the first or the second embodiment.
  • the UE may be instructed not to read and apply the SI on DL 2 in cell 2 .
  • the UE may be instructed to apply only parts of the SI on DL 2 , e.g., to not apply the parameters that configures the UL 2 .
  • An advantage of this embodiment is that it is possible to configure a UE specific, asymmetric UL & DL configuration, where each UL and DL pair corresponds to Rel-8 backwards compatible cells.
  • the information related to the relevance of the SI broadcasted on cell 2 comprises information related to the RACH configuration.
  • the information may include an instruction to not apply the RACH configuration provided in SI on cell 2 .
  • the information may include RACH parameters that override the configuration parameters provided in SI on cell 2 . This embodiment makes it possible to control the RACH selection and pooling, such that a UE can be assigned a particular RACH resource, even if SI in multiple cells provide different sets of RACH resources, where the RACH configuration provided in the SI is primarily intended for single-cell use.
  • the information on how to apply the SI broadcasted in cell 2 is broadcasted together with the SI, instead of transmitted in a dedicated message as in embodiment A.
  • the SI broadcasted in cell 2 thus comprises configuration parameters of relevance for single cell operation, and in addition, the SI comprises at least one of:
  • Both embodiment A and B of the present invention may be used for adapting, e.g., RACH, PUCCH and/or PUSCH parameters in SI to a carrier aggregation situation.
  • Other parameters may also be considered such as timers and constants.
  • FIG. 4 is a flowchart of the method of the UE in a wireless communication system supporting carrier aggregation, according to one embodiment of the present invention.
  • the UE is configured to receive data from an RBS in a first cell, i.e., the primary cell.
  • the RBS is an eNB.
  • the eNB is configured to broadcast SI comprising configuration parameters in both the first primary cell and in a second cell.
  • the method illustrated in the flowchart comprises the following steps:
  • the received information comprises an instruction to not apply SI broadcasted in the second cell, which means that the UE will not read and apply any SI in that secondary cell.
  • the received information may also comprise one or more configuration parameters that replace a corresponding configuration parameter in the SI broadcasted in the second cell, according to the third embodiment described above. It may, e.g., be a configuration parameter that corresponds to a parameter in the SI from the second cell that the UE is instructed not to apply.
  • the information on how to apply the SI broadcasted in the second cell is received in a dedicated message, e.g., in the RRCConnectionReconfiguration message which also comprises the configuration information as described in 410 above.
  • the information is received in a broadcast message together with the SI broadcasted in the first or the second cell.
  • FIG. 5 is a flowchart of the method of the RBS, in a wireless communication system supporting carrier aggregation.
  • the RBS is in this embodiment an eNB in an E-UTRAN.
  • the eNB is configured to transmit data to a user equipment in a first cell.
  • the method illustrated in the flowchart comprises the following:
  • the transmitted information comprises in the first alternative embodiment an instruction to apply only a part of the configuration parameters in the SI broadcasted in the second cell.
  • the transmitted information comprises an instruction to not apply SI broadcasted in the second cell, which means that the UE will not read and apply any SI in that cell.
  • the transmitted information may also comprise one or more configuration parameters that replace a corresponding configuration parameter in the SI broadcasted in the second cell, according to the third embodiment. It may, e.g., be a configuration parameter that corresponds to a parameter in the SI from the second cell that the UE is instructed not to apply.
  • the information on how to apply the SI broadcasted in the second cell is transmitted in a dedicated message, e.g., in the RRCConnectionReconfiguration message which also comprises the configuration information as described in 520 above.
  • the information is transmitted in a broadcast message in one or both of the cells together with the SI.
  • FIG. 6 a is a simplified block diagram of the UE 150 according to embodiments of the present invention, and discloses an antenna connected to a transceiver unit 61 that forwards control information received in the DL to a control unit 62 .
  • the control unit 62 comprises a SI Unit that controls the operation of the UE in accordance with the SI received. It also comprises a Further Information Unit that controls the operation of a UE in carrier aggregation operation in accordance with the received further information on how to apply the SI broadcasted in the second cell.
  • the control unit 62 , the Further Information Unit and the SI Unit may be implemented as hardware, software or a combination of the two.
  • FIG. 6 b is a block diagram illustrating the control unit 62 as implemented in a combination of hardware and software according to embodiments of the present invention. It comprises a processor unit 620 , and interface 624 to the transceiver units. Furthermore the control unit 62 comprises at least one computer program product 621 in the form of a non-volatile memory, e.g., an EEPROM, a flash memory and a disk drive.
  • the computer program product 621 comprises a computer program, which comprises code means which when run on the processor unit 620 causes the processor unit 620 to perform the steps of the procedures or methods described earlier in conjunction with FIG. 4 .
  • FIG. 7 a is a simplified block diagram of the eNB according to embodiments of the present invention, and discloses a transceiver unit 71 , connected to an antenna, and controlled by a control unit 72 that, among other things, controls what control information that is transmitted from the transceiver 71 .
  • the control unit 72 comprises a SI Unit that controls the SI broadcasted. It also comprises a Further Information Unit that controls information sent to a UE in carrier aggregation operation.
  • the control unit 72 , the Further Information Unit and the SI Unit may be implemented as hardware, software or a combination of the two.
  • FIG. 7 b is a block diagram illustrating the control unit 72 as implemented in a combination of hardware and software according to embodiments of the present invention. It comprises a processor unit 720 , and interface 724 to the transceiver units. Furthermore the control unit comprises at least one computer program product 721 in the form of a non-volatile memory, e.g., an EEPROM, a flash memory and a disk drive.
  • the computer program product 721 comprises a computer program, which comprises code means which when run on the processor unit 720 causes the processor unit 720 to perform the steps of the procedures described earlier in conjunction with FIG. 5 .
  • the UE 150 and the eNB 110 are also schematically illustrated in FIG. 8 , according to embodiments of the present invention.
  • the UE 150 is configured to be used in a wireless communication system supporting carrier aggregation, and to receive data from the eNB 110 in a first cell.
  • the eNB 110 is configured to broadcast SI comprising configuration parameters in the first and a second cell.
  • the UE comprises a receiving unit 151 adapted to receive configuration information for an aggregation of the first and the second cell from the eNB.
  • the receiving unit 151 is further adapted to receive information on how to apply the SI broadcasted in the second cell from the eNB.
  • the eNB 110 correspondingly comprises a broadcasting unit 111 adapted to broadcast SI comprising configuration parameters in the first and in the second cell. It also comprises a transmitting unit 112 adapted to transmit configuration information for an aggregation of the first and second cells, and information on how to apply the system information broadcasted in the second cell to the user equipment.
  • the information on how to apply the SI broadcasted in the second cell comprises an instruction to apply only a part of the configuration parameters in the SI broadcasted in the second cell
  • the UE further comprises a reading unit 152 adapted to read the SI broadcasted in the second cell, and an applying unit 153 adapted to apply the read SI in accordance with the received instruction.
  • the information comprises an instruction to not apply SI broadcasted in the second cell, which means that no reading and applying unit is needed in the UE.
  • the information may also comprise one or more configuration parameters that replace a corresponding configuration parameter in the SI broadcasted in the second cell, according to the third embodiment. It may, e.g., be a configuration parameter that corresponds to a parameter in the SI from the second cell that the UE is instructed not to apply.
  • the information on how to apply the SI broadcasted in the second cell is transmitted/received in a dedicated message.
  • the information is transmitted/received in a broadcast message together with the SI broadcasted in the first or the second cells.
  • the units 152 - 153 may be circuits integrated in a processing logic including, e.g., a processor, microprocessor, an ASIC, or the like or maybe separate units/circuits. It should be noted that the embodiments described herein are not limited to any specific combination of hardware circuitry and software.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
US12/833,545 2009-11-02 2010-07-09 Methods and Arrangements in a Wireless Communication System Abandoned US20110105105A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/833,545 US20110105105A1 (en) 2009-11-02 2010-07-09 Methods and Arrangements in a Wireless Communication System

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25720109P 2009-11-02 2009-11-02
US12/833,545 US20110105105A1 (en) 2009-11-02 2010-07-09 Methods and Arrangements in a Wireless Communication System

Publications (1)

Publication Number Publication Date
US20110105105A1 true US20110105105A1 (en) 2011-05-05

Family

ID=43922335

Family Applications (2)

Application Number Title Priority Date Filing Date
US12/833,545 Abandoned US20110105105A1 (en) 2009-11-02 2010-07-09 Methods and Arrangements in a Wireless Communication System
US12/833,540 Active 2031-11-26 US8812006B2 (en) 2009-11-02 2010-07-09 Methods and arrangements in a wireless communication system

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/833,540 Active 2031-11-26 US8812006B2 (en) 2009-11-02 2010-07-09 Methods and arrangements in a wireless communication system

Country Status (9)

Country Link
US (2) US20110105105A1 (enExample)
EP (2) EP2497327A4 (enExample)
JP (3) JP2013509798A (enExample)
CN (3) CN102668688B (enExample)
BR (1) BR112012010264A8 (enExample)
IN (1) IN2012DN03406A (enExample)
MX (1) MX2012005046A (enExample)
RU (1) RU2557763C2 (enExample)
WO (2) WO2011053218A1 (enExample)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120213141A1 (en) * 2011-02-22 2012-08-23 Qualcomm Incorporated Enhanced multimedia broadcast multicast service carriers in carrier aggregation
CN102958059A (zh) * 2011-08-17 2013-03-06 上海贝尔股份有限公司 用于载波聚合中时分双工配置的方法和设备
US8433308B2 (en) * 2010-04-30 2013-04-30 Htc Corporation Apparatuses and methods for updating configurations of radio resources with system information
US20130322389A1 (en) * 2011-02-10 2013-12-05 Mitsubishi Electric Corporation Communication system
CN104488339A (zh) * 2012-07-24 2015-04-01 富士通株式会社 无线终端、无线基站、无线通信系统以及无线通信方法
EP2730137A4 (en) * 2011-07-05 2015-04-01 Nokia Solutions & Networks Oy METHOD AND DEVICE FOR RESOURCE AGGREGATION IN WIRELESS COMMUNICATION
US9467885B2 (en) 2010-11-08 2016-10-11 Qualcomm Incorporated Inter-frequency measurement control in a multi-carrier system
US20180049159A1 (en) * 2016-08-12 2018-02-15 Spreadtrum Communications (Shanghai) Co., Ltd. Method and device for updating system information, method and device for acquiring system information
US11265879B2 (en) * 2019-07-05 2022-03-01 Qualcomm Incorporated Group component carrier based updates
US11431375B2 (en) 2018-12-11 2022-08-30 Nxp Usa, Inc. Leakage cancellation in a radar receiver

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110159867A1 (en) * 2009-12-24 2011-06-30 Richard Lee-Chee Kuo Method and apparatus to allocate random access channel (rach) resources for carrier aggregation in a wireless communication network
CN105208625B (zh) 2010-01-08 2021-05-18 索尼公司 电子装置和电子装置的通信方法
GB2496821B (en) 2010-09-13 2018-11-21 Lg Electronics Inc Method and device for transmitting control information
GB2488971B (en) 2011-02-18 2015-06-24 Sca Ipla Holdings Inc Communication units and methods for resource change notification in broadcast communication
US9813953B2 (en) * 2012-07-04 2017-11-07 Telefonaktiebolaget Lm Ericsson (Publ) Radio network node, a user equipment and methods therein
US9066273B2 (en) 2012-07-30 2015-06-23 Qualcomm Incorporated Cell selection based on favorable ULDL configuration in LTE/TDD networks
JP2014090396A (ja) * 2012-10-04 2014-05-15 Ntt Docomo Inc 移動局及び無線基地局
JP6312992B2 (ja) * 2013-06-27 2018-04-18 株式会社Ｎｔｔドコモ 移動局
WO2015151293A1 (ja) * 2014-04-04 2015-10-08 富士通株式会社 システム、基地局および端末
US10484979B2 (en) * 2015-02-27 2019-11-19 Qualcomm Incorporated Fast enhanced component carrier activation
US9924526B2 (en) 2015-03-09 2018-03-20 Ofinno Technologies, Llc Radio resource control mechanism in a wireless device and wireless network
EP3335472B1 (en) * 2015-08-14 2019-05-15 Telefonaktiebolaget LM Ericsson (PUBL) System information broadcasting in a wireless network
WO2017051659A1 (ja) * 2015-09-25 2017-03-30 シャープ株式会社 基地局装置、端末装置および通信方法
TWI653903B (zh) * 2016-08-12 2019-03-11 聯發科技股份有限公司 用戶設備及系統資訊擷取方法
JP6989618B2 (ja) * 2017-05-05 2022-01-05 テレフオンアクチーボラゲット エルエム エリクソン（パブル） システム情報（ｓｉ）収集時間を低減するための方法およびシステム
CN109756295B (zh) * 2017-11-02 2024-04-12 华为技术有限公司 一种通信方法及装置
US11064532B2 (en) 2018-08-09 2021-07-13 Telefonaktiebolaget Lm Ericsson (Publ) Channel quality reporting in LTE-M

Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040218533A1 (en) * 2003-04-29 2004-11-04 Lg Electronics Inc. Apparatus and method for controlling reverse-link data transmission rate during handoff
US20090080428A1 (en) * 2007-09-25 2009-03-26 Maxxan Systems, Inc. System and method for scalable switch fabric for computer network
US20100120442A1 (en) * 2008-11-12 2010-05-13 Motorola, Inc. Resource sharing in relay operations within wireless communication systems
US20100227569A1 (en) * 2008-10-20 2010-09-09 Interdigital Patent Holdings, Inc. Control channel signaling and acquisition for carrier aggregation
US20100240367A1 (en) * 2007-10-05 2010-09-23 Lg Electronics Inc. Method of performing cell reselection in wireless communication system
US20100265847A1 (en) * 2009-04-21 2010-10-21 Lg Electronics Inc. Method of configuring carrier in multi-carrier system
US20100273515A1 (en) * 2009-04-27 2010-10-28 Motorola, Inc. Uplink Scheduling Support in Multi-Carrier Wireless Communication Systems
US20100281985A1 (en) * 2007-05-16 2010-11-11 Hitachi Cable, Ltd. Optical fiber vibration sensor
US20110034175A1 (en) * 2009-08-07 2011-02-10 Mo-Han Fong System and method for a virtual carrier for multi-carrier and coordinated multi-point network operation
US20110039593A1 (en) * 2009-07-28 2011-02-17 Lg Electronics Inc. Method for performing carrier management procedure in a multi-carrier supported wideband wireless communication system and apparatus for the same
US20110134759A1 (en) * 2008-07-08 2011-06-09 Dong Cheol Kim Method and apparatus for controlling uplink power in a wireless communication system
US20110159903A1 (en) * 2008-09-05 2011-06-30 Young Soo Yuk Method and apparatus for communication using multiple carriers
US20110177807A1 (en) * 2008-09-23 2011-07-21 Cho Joon Young Downlink channel transmission method and apparatus and common channel reception method and apparatus in cellular communication system supporting bandwidth scalability
US20110194514A1 (en) * 2008-07-30 2011-08-11 Moon Il Lee Method and apparatus of receiving data in wireless communication system
US20110211541A1 (en) * 2008-07-08 2011-09-01 Young Soo Yuk Method for generating a carrier group and method for transmitting carrier group information
US20110211522A1 (en) * 2008-10-31 2011-09-01 Jae Hoon Chung Method and Apparatus for Performing HARQ Process in Wireless Communication System
US20110243034A1 (en) * 2008-12-04 2011-10-06 Shohei Yamada Communication system and mobile station apparatus
US20120044922A1 (en) * 2009-04-28 2012-02-23 Ntt Docomo, Inc. Mobile communication system, radio base station, and control method
US20120093103A1 (en) * 2009-04-09 2012-04-19 Lg Electronics Inc. Method and apparatus for executing carrier management process in multi-carrier supporting broadband wireless communication system
US20120115468A1 (en) * 2009-02-04 2012-05-10 Telefonaktiebolaget L M Ericsson (Publ) Technique for anchor carrier selection in a telecommunication system
US20120157103A1 (en) * 2009-05-08 2012-06-21 Frenger Paal Method and Arrangement In A Radio Communications System for Supporting DTX
US20120214541A1 (en) * 2011-02-21 2012-08-23 Motorola Mobility, Inc. Signal Measurement on Component Carriers in Wireless Communication Systems

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100566201B1 (ko) * 2002-04-22 2006-03-29 삼성전자주식회사 직교 주파수 분할 다중 접속 방식을 사용하는 이동 통신시스템에서 레인징 방법
KR100773131B1 (ko) * 2003-06-27 2007-11-02 노키아 코포레이션 무선 통신 네트워크에서 패킷 결합을 위한 방법 및 장치
CN1722895B (zh) * 2004-07-12 2010-09-29 中兴通讯股份有限公司 一种多载波小区中的主载频重配置方法
US7894417B2 (en) * 2005-11-01 2011-02-22 Nokia Corporation Signal arrangement for multi-bandwidth OFDM system
CN101098294B (zh) * 2006-06-26 2010-05-12 大唐移动通信设备有限公司 高速下行链路分组接入技术中载波分配的方法和装置
WO2008093997A1 (en) * 2007-01-31 2008-08-07 Lg Electronics Inc. Method for receiving system information in multimedia broadcast/multicast service
EP1986367B1 (en) * 2007-04-27 2009-11-04 Research In Motion Limited Apparatus and method for handling broadcast system information in telecommunications system user equipment
KR20090106962A (ko) * 2008-04-07 2009-10-12 삼성전자주식회사 다중 홉 릴레이 방식의 광대역 무선통신 시스템에서 서로다른 시스템 지원 장치 및 방법
CN101404526B (zh) 2008-11-03 2013-05-01 中兴通讯股份有限公司 下行控制信息处理方法
CN101515809B (zh) * 2009-03-17 2014-03-12 中兴通讯股份有限公司南京分公司 载波聚合场景中降低参考信号cm的方法和装置
CN101541036B (zh) 2009-04-27 2015-05-20 中兴通讯股份有限公司 增强长期演进系统终端的工作方法和系统
CN101541029B (zh) * 2009-04-27 2015-01-28 中兴通讯股份有限公司 载波聚合情况下测量参考信号的发送方法和装置
CN101557641B (zh) * 2009-05-07 2010-12-08 浙江大学 一种适用于蜂窝中继系统的子载波和功率分配方法

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040218533A1 (en) * 2003-04-29 2004-11-04 Lg Electronics Inc. Apparatus and method for controlling reverse-link data transmission rate during handoff
US20100281985A1 (en) * 2007-05-16 2010-11-11 Hitachi Cable, Ltd. Optical fiber vibration sensor
US20090080428A1 (en) * 2007-09-25 2009-03-26 Maxxan Systems, Inc. System and method for scalable switch fabric for computer network
US20100240367A1 (en) * 2007-10-05 2010-09-23 Lg Electronics Inc. Method of performing cell reselection in wireless communication system
US20110134759A1 (en) * 2008-07-08 2011-06-09 Dong Cheol Kim Method and apparatus for controlling uplink power in a wireless communication system
US20110211541A1 (en) * 2008-07-08 2011-09-01 Young Soo Yuk Method for generating a carrier group and method for transmitting carrier group information
US20110194514A1 (en) * 2008-07-30 2011-08-11 Moon Il Lee Method and apparatus of receiving data in wireless communication system
US20110159903A1 (en) * 2008-09-05 2011-06-30 Young Soo Yuk Method and apparatus for communication using multiple carriers
US20110177807A1 (en) * 2008-09-23 2011-07-21 Cho Joon Young Downlink channel transmission method and apparatus and common channel reception method and apparatus in cellular communication system supporting bandwidth scalability
US20100227569A1 (en) * 2008-10-20 2010-09-09 Interdigital Patent Holdings, Inc. Control channel signaling and acquisition for carrier aggregation
US20110211522A1 (en) * 2008-10-31 2011-09-01 Jae Hoon Chung Method and Apparatus for Performing HARQ Process in Wireless Communication System
US20100120442A1 (en) * 2008-11-12 2010-05-13 Motorola, Inc. Resource sharing in relay operations within wireless communication systems
US20110243034A1 (en) * 2008-12-04 2011-10-06 Shohei Yamada Communication system and mobile station apparatus
US20120115468A1 (en) * 2009-02-04 2012-05-10 Telefonaktiebolaget L M Ericsson (Publ) Technique for anchor carrier selection in a telecommunication system
US20120093103A1 (en) * 2009-04-09 2012-04-19 Lg Electronics Inc. Method and apparatus for executing carrier management process in multi-carrier supporting broadband wireless communication system
US20100265847A1 (en) * 2009-04-21 2010-10-21 Lg Electronics Inc. Method of configuring carrier in multi-carrier system
US20100273515A1 (en) * 2009-04-27 2010-10-28 Motorola, Inc. Uplink Scheduling Support in Multi-Carrier Wireless Communication Systems
US20120044922A1 (en) * 2009-04-28 2012-02-23 Ntt Docomo, Inc. Mobile communication system, radio base station, and control method
US20120157103A1 (en) * 2009-05-08 2012-06-21 Frenger Paal Method and Arrangement In A Radio Communications System for Supporting DTX
US20110039593A1 (en) * 2009-07-28 2011-02-17 Lg Electronics Inc. Method for performing carrier management procedure in a multi-carrier supported wideband wireless communication system and apparatus for the same
US20110034175A1 (en) * 2009-08-07 2011-02-10 Mo-Han Fong System and method for a virtual carrier for multi-carrier and coordinated multi-point network operation
US20120214541A1 (en) * 2011-02-21 2012-08-23 Motorola Mobility, Inc. Signal Measurement on Component Carriers in Wireless Communication Systems

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8433308B2 (en) * 2010-04-30 2013-04-30 Htc Corporation Apparatuses and methods for updating configurations of radio resources with system information
US9467885B2 (en) 2010-11-08 2016-10-11 Qualcomm Incorporated Inter-frequency measurement control in a multi-carrier system
US20190364441A1 (en) * 2011-02-10 2019-11-28 Mitsubishi Electric Corporation Communication system, communication terminal device and primary cell
US20160309536A1 (en) * 2011-02-10 2016-10-20 Mitsubishi Electric Corporation Communication system to provide services using carrier aggregation
US10893421B2 (en) * 2011-02-10 2021-01-12 Mitsubishi Electric Corporation Communication system, communication terminal device and primary cell
US10575191B2 (en) * 2011-02-10 2020-02-25 Mitsubishi Electric Corporation Communication system to provide services using carrier aggregation
US9066329B2 (en) * 2011-02-10 2015-06-23 Mitsubishi Electric Corporation Communication system
US20130322389A1 (en) * 2011-02-10 2013-12-05 Mitsubishi Electric Corporation Communication system
US20150237514A1 (en) * 2011-02-10 2015-08-20 Mitsubishi Electric Corporation Communication system
US9386467B2 (en) * 2011-02-10 2016-07-05 Mitsubishi Electric Corporation Communication system to provide services using carrier aggregation
US20120213141A1 (en) * 2011-02-22 2012-08-23 Qualcomm Incorporated Enhanced multimedia broadcast multicast service carriers in carrier aggregation
US9853781B2 (en) 2011-07-05 2017-12-26 Nokia Solutions And Networks Oy Method and apparatus for resource aggregation in wireless communications
EP2730137A4 (en) * 2011-07-05 2015-04-01 Nokia Solutions & Networks Oy METHOD AND DEVICE FOR RESOURCE AGGREGATION IN WIRELESS COMMUNICATION
US10680768B2 (en) 2011-07-05 2020-06-09 Hmd Global Oy Method and apparatus for resource aggregation in wireless communications
CN102958059A (zh) * 2011-08-17 2013-03-06 上海贝尔股份有限公司 用于载波聚合中时分双工配置的方法和设备
EP2879449A4 (en) * 2012-07-24 2015-08-19 Fujitsu Ltd WIRELESS DEVICE, WIRELESS BASE STATION, WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION PROCESS
CN104488339A (zh) * 2012-07-24 2015-04-01 富士通株式会社 无线终端、无线基站、无线通信系统以及无线通信方法
US20180049159A1 (en) * 2016-08-12 2018-02-15 Spreadtrum Communications (Shanghai) Co., Ltd. Method and device for updating system information, method and device for acquiring system information
US10080212B2 (en) * 2016-08-12 2018-09-18 Spreadtrum Communications (Shanghai) Co., Ltd. Method and device for updating system information, method and device for acquiring system information
US11431375B2 (en) 2018-12-11 2022-08-30 Nxp Usa, Inc. Leakage cancellation in a radar receiver
US11265879B2 (en) * 2019-07-05 2022-03-01 Qualcomm Incorporated Group component carrier based updates

Also Published As

Publication number Publication date
CN102598838B (zh) 2016-06-08
CN102668688B (zh) 2015-09-09
US8812006B2 (en) 2014-08-19
IN2012DN03406A (enExample) 2015-10-23
BR112012010264A2 (pt) 2017-07-04
JP2013509798A (ja) 2013-03-14
JP5580902B2 (ja) 2014-08-27
EP2497326A4 (en) 2016-08-10
CN102668688A (zh) 2012-09-12
US20110105165A1 (en) 2011-05-05
CN105071909A (zh) 2015-11-18
RU2012122537A (ru) 2013-12-10
WO2011053218A1 (en) 2011-05-05
JP2015164352A (ja) 2015-09-10
BR112012010264A8 (pt) 2018-04-24
EP2497327A1 (en) 2012-09-12
RU2557763C2 (ru) 2015-07-27
EP2497326A1 (en) 2012-09-12
JP2013509799A (ja) 2013-03-14
EP2497326B1 (en) 2019-01-02
JP6073960B2 (ja) 2017-02-01
CN102598838A (zh) 2012-07-18
WO2011053217A1 (en) 2011-05-05
MX2012005046A (es) 2012-09-07
CN105071909B (zh) 2019-08-13
EP2497327A4 (en) 2016-08-24

Similar Documents

Publication Publication Date Title
US8812006B2 (en) Methods and arrangements in a wireless communication system
US11876658B2 (en) Method for connecting to a base station with flexible bandwidth
US12295058B2 (en) Method and device for using uplink bandwidth part for radio resource control inactive state uplink data communications
EP4236485B1 (en) Bwp management method and device
RU2602819C2 (ru) Определение интервала канала для агрегирования несущих
CN106471858B (zh) 在载波聚合中切换到双连接性的方法和用户设备
US9794845B2 (en) Method and terminal for applying changed system information
WO2016070417A1 (en) Improved resource allocation for transmissions on unlicensed carriers
US9763239B2 (en) Data transmission method and apparatus for half-duplex devices
US12156125B2 (en) Method and radio communication equipment for signaling a physical layer profile
WO2018057612A1 (en) User equipment capability determination for multiple radio capability groups
CA3217433A1 (en) Early time alignment acquisition for fast cell switching
EP3665935B1 (en) Radio network node, wireless device and methods performed therein
EP3306983A1 (en) Frequency-hopping method, terminal, and base station
KR102244326B1 (ko) 다중 요소 반송파 시스템에서 서빙 셀을 그룹핑하는 방법 및 장치
HK1173599A (en) Methods and arrangements for providing proper system information at carrier aggregation in a wireless communication system

Legal Events

Date Code Title Description
AS Assignment

Owner name: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), SWEDEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SAGFORS, MATS;BALDEMAIR, ROBERT;LINDSTROM, MAGNUS;SIGNING DATES FROM 20100807 TO 20100909;REEL/FRAME:024980/0735

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION