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39 条记录 (耗时 0.016 秒)

    CONTROLLING UPLINK MULTI-ANTENNA TRANSMISSIONS IN A TELECOMMUNICATION SYSTEM
    22.
    发明公开
    CONTROLLING UPLINK MULTI-ANTENNA TRANSMISSIONS IN A TELECOMMUNICATION SYSTEM 有权
    控制与多个天线的上行链路传输，电信系统中

    公开(公告)号：EP2702704A1

    公开(公告)日：2014-03-05

    申请号：EP12708176.8

    申请日：2012-02-13

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： HULTELL, Johan ,  BERGMAN, Johan

    IPC分类号： H04B7/06

    CPC分类号： H04B7/0652 ,  H04B7/0404 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0654 ,  H04B7/0656 ,  H04L25/03343

    摘要： The disclosure relates to controlling uplink transmissions according to closed loop techniques such as closed loop uplink transmit diversity and uplink multiple- input multiple-output (MIMO). An exemplary method for use in a user equipment (61) configured for multi-antenna transmissions comprises a step of receiving (62), in a downlink channel, pre-coding vector information indicating a preceding vector for uplink transmission. The method further comprises a step of determining (63) whether the pre-coding vector indicated by the received pre- coding vector information is reliable or unreliable and steps of applying (64) the pre-coding vector indicated by the received pre-coding vector information for uplink transmission only if the pre-coding vector is determined to be reliable and applying (66) a pre-determined pre-coding vector when the pre-coding vector indicated by the received pre-coding vector information is determined to be unreliable.

    MULTIPLE CARRIER ACKNOWLEDGMENT SIGNALING
    23.
    发明公开
    MULTIPLE CARRIER ACKNOWLEDGMENT SIGNALING 有权
    更多车确认信令

    公开(公告)号：EP2353243A1

    公开(公告)日：2011-08-10

    申请号：EP09786270.0

    申请日：2009-09-21

    申请人： Telefonaktiebolaget L M Ericsson (PUBL)

    发明人： BERGMAN, Johan ,  WANG, Yi-Pin, Eric ,  LARSSON, Erik

    IPC分类号： H04L1/00 ,  H04L1/18

    CPC分类号： H04L1/0057 ,  H04L1/0073 ,  H04L1/1607 ,  H04L2001/125

    摘要： Acknowledgment signaling in a multiple carrier environment is enabled with a multiple carrier codebook having code words that jointly encode acknowledgment for at least two carriers. For an example embodiment, there is a method in a remote terminal for acknowledgment uplink signaling in a multiple-carrier mode. First, a code word is determined that jointly encodes acknowledgment signaling for at least two carriers from a multiple carrier codebook that is stored in the remote terminal. The multiple carrier codebook includes eight code words that are defined to have a single carrier codebook as a sub-codebook of the multiple carrier codebook, each code word of the eight code words having a length of ten. The multiple carrier codebook achieves a minimum Hamming distance of four among the eight code words. Second, an uplink signaling message that includes the determined code word is transmitted from the remote terminal to a wireless network node.

    FAST RANDOM ACCESS FOR AN ENHANCED UPLINK DEDICATED CHANNEL
    25.
    发明公开
    FAST RANDOM ACCESS FOR AN ENHANCED UPLINK DEDICATED CHANNEL 有权
    快速直达晚期专用上行通道

    公开(公告)号：EP2204064A1

    公开(公告)日：2010-07-07

    申请号：EP08845730.4

    申请日：2008-10-30

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： GERSTENBERGER, Dirk ,  BERGMAN, Johan ,  WANG, Yi-Pin Eric ,  PRADAS, José Luis ,  WAGER, Stefan ,  EDHOLM, Christer

    IPC分类号： H04W74/08

    CPC分类号： H04W74/006 ,  H04W74/0833 ,  H04W74/0866

    摘要： The present invention relates to fast random access methods and arrangements for the enhanced uplink dedicated channel of E-UTRAN (Evolved Universal terrestrial radio access network). A user equipment (UE) being in a low activity state sends a random access request comprising a preamble on a physical random access channel (PRACH) to a NodeB. The NodeB receives the request and sends in response to the received random access request a response comprising information associated with detection of the preamble on an acquisition indicator channel (AICH). The response comprises further in an extension of the AICH an indication of an action to be taken by the UE. In an embodiment of the present invention the action is to access the E-DCH and the response comprises configuration parameters to the E-DCH.

    SYNCHRONIZATION SIGNAL DESIGN FOR WIRELESS DEVICES IN A LONG RANGE EXTENSION MODE
    26.
    发明公开
    SYNCHRONIZATION SIGNAL DESIGN FOR WIRELESS DEVICES IN A LONG RANGE EXTENSION MODE 审中-公开
    DRAFT同步信号。第一个LRE模式无线装置的

    公开(公告)号：EP2946619A2

    公开(公告)日：2015-11-25

    申请号：EP14704670.0

    申请日：2014-01-17

    申请人： Telefonaktiebolaget L M Ericsson (Publ)

    发明人： BALDEMAIR, Robert ,  FRENGER, Pål ,  DIMOU, Konstantinos ,  BERGMAN, Johan

    IPC分类号： H04W56/00 ,  H04L27/26

    CPC分类号： H04B1/7073 ,  H04L5/0048 ,  H04L27/2655 ,  H04L27/2692 ,  H04W56/00 ,  H04W56/001 ,  H04W56/0015

    摘要： Systems and methods related to a synchronization signal particularly well suited for wireless devices in an extended coverage area of a cell of a cellular communications network are disclosed. In one embodiment, a base station transmits a synchronization signal including multiple repetitions of a basic synchronization block during a coherence time of a downlink channel over which the synchronization signal is transmitted. The multiple repetitions of the basic synchronization block during the coherence time enable coherent combining during detection of the synchronization signal at wireless devices located in the cellular communications network. This coherent combining enables, for example, wireless devices located in an extended coverage area of a cell served by the base station to synchronize to the cell using a shorter synchronization signal than that which would be required if only non-coherent combining were used.

    METHODS AND DEVICES FOR UPLINK MULTI-ANTENNA TRANSMISSIONS IN A TELECOMMUNICATION SYSTEM
    30.
    发明公开
    METHODS AND DEVICES FOR UPLINK MULTI-ANTENNA TRANSMISSIONS IN A TELECOMMUNICATION SYSTEM 有权
    方法和设备与电信系统中多个天线的上行链路发射

    公开(公告)号：EP2702705A2

    公开(公告)日：2014-03-05

    申请号：EP12708413.5

    申请日：2012-02-13

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： HULTELL, Johan ,  BERGMAN, Johan

    IPC分类号： H04B7/06

    CPC分类号： H04B7/0456 ,  H04B7/0404 ,  H04B7/0421 ,  H04B7/0634 ,  H04B7/0689 ,  H04W52/545

    摘要： The disclosure relates to controlling uplink transmissions according to closed loop multi-antenna techniques such as closed loop uplink transmit diversity and uplink multiple-input multiple-output (MIMO). An exemplary method for use in a user equipment (81) configured for multi-antenna transmissions comprises a step of estimating (62) reception quality of a physical channel carrying pre-coding weight information to the user equipment (61). The method further comprises a step of determining (64) that the reception quality of the physical channel is inferior if the estimated reception quality is below a threshold and otherwise considering (65) the reception quality of the physical channel to be sufficient, in a further step the UE (61) applies (52) the pre-coding weight information received on the physical channel for uplink transmission only if the reception quality of the physical channel is considered to be sufficient