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63 条记录 (耗时 0.023 秒)

    MULTI-USER COMMUNICATION SESSION MANAGEMENT
    5.
    发明授权
    MULTI-USER COMMUNICATION SESSION MANAGEMENT 有权
    多个用户通信管理会议

    公开(公告)号：EP2087767B1

    公开(公告)日：2016-07-13

    申请号：EP07709413.4

    申请日：2007-01-15

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： HANNU, Hans ,  JÖNSSON, Tomas

    IPC分类号： H04W72/00 ,  H04W4/10 ,  H04W48/06 ,  H04W76/00

    CPC分类号： H04W72/005 ,  H04W4/10 ,  H04W48/06 ,  H04W76/45

    摘要： The invention involves uplink access management for user terminals (210, 220, 230, 240, 250, 260, 270) present in a same first cell (15) of a communication system (1) and participating in a communication session involving communication of user data on a common downlink channel to the terminals (210, 220, 230, 240, 250, 260, 270). When the terminals (210, 220, 230, 240, 250, 260, 270) want to respond to the user data transmission, they first have to request uplink access. According to the invention, at least one of the terminals (220, 230, 240) requests this uplink access using a request channel associated with a second (25, 35, 45) cell different from the current first cell (15). This reduces the risk of collision of uplink access requests on the request channel by distributing the requests over several cells (15, 25, 35, 45) instead of a single cell (15).

    METHOD FOR CONTROLLING CHANGE OF A RADIO RESOURCE CONTROL (RRC) STATE FOR A USER EQUIPMENT
    6.
    发明公开
    METHOD FOR CONTROLLING CHANGE OF A RADIO RESOURCE CONTROL (RRC) STATE FOR A USER EQUIPMENT 有权
    方法用于控制无线资源控制状态的改造用户设备

    公开(公告)号：EP2578045A1

    公开(公告)日：2013-04-10

    申请号：EP11790077.9

    申请日：2011-05-17

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： CHRISTOFFERSSON, Jan ,  ERICSON, Mårten ,  HANNU, Hans ,  FAN, Rui

    IPC分类号： H04W76/04

    CPC分类号： H04W76/27

    摘要： The present invention relates to an apparatus and method for triggering change of a Radio Resource Control (RRC) state for a user equipment operating in a cellular network. According to the method a Radio Link Control (RLC) buffer threshold associated with a Radio Link Control buffer is set to an initial value upon the user equipment entering a CELL_FACH RRC state. The RLC buffer threshold is decreased as a function of time. A RRC state change for the user equipment between the CELL_FACH RRC state and a CELL_DCH RRC state is triggered according to a predetermined rule based on a current size of the RLC buffer and the RLC buffer threshold. The method facilitates achieving a desired RRC state transition behavior for some types of users.

    ADAPTING PLAYOUT BUFFER BASED ON AUDIO BURST LENGTH
    8.
    发明授权
    ADAPTING PLAYOUT BUFFER BASED ON AUDIO BURST LENGTH 有权
    基于AUDIO-BURST长度的播放缓冲器的适应

    公开(公告)号：EP1683305B1

    公开(公告)日：2010-01-13

    申请号：EP03818974.2

    申请日：2003-11-11

    申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)

    发明人： JÖNSSON, Tomas ,  HANNU, Hans

    IPC分类号： H04L12/28 ,  H04L12/56 ,  H04W88/02

    CPC分类号： H04L65/80 ,  H04L49/90 ,  H04L49/901 ,  H04L65/4061

    摘要： The invention relates to a size variable playout buffer (120) adapted for temporarily storing data packets comprising bursty audio data received over a communications system (1) at user equipment (100). The temporary storage and size variability compensates for changes in bit-rate or any transmission delay over the communications system (1). According to the invention, the size of the playout buffer (120) is adapted based on the audio burst length. Typically, the buffer size is controlled based on length values of multiple audio bursts, e.g. an average of multiple audio burst lengths, including a weighted average length. The number (M) of audio burst lengths to be employed in the averaging is preferably dynamically determined based on an audio burst length (average) value. The playout buffer (120) is adapted for use in a communications system (1) supporting Push to talk over Cellular (PoC) services.

    UPLINK ACCESS MANAGEMENT
    9.
    发明公开
    UPLINK ACCESS MANAGEMENT 有权
    多个用户通信管理会议

    公开(公告)号：EP2087767A1

    公开(公告)日：2009-08-12

    申请号：EP07709413.4

    申请日：2007-01-15

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： HANNU, Hans ,  JÖNSSON, Tomas

    IPC分类号： H04Q7/38

    CPC分类号： H04W72/005 ,  H04W4/10 ,  H04W48/06 ,  H04W76/45

    摘要： The invention involves uplink access management for user terminals (210, 220, 230, 240, 250, 260, 270) present in a same first cell (15) of a communication system (1) and participating in a communication session involving communication of user data on a common downlink channel to the terminals (210, 220, 230, 240, 250, 260, 270). When the terminals (210, 220, 230, 240, 250, 260, 270) want to respond to the user data transmission, they first have to request uplink access. According to the invention, at least one of the terminals (220, 230, 240) requests this uplink access using a request channel associated with a second (25, 35, 45) cell different from the current first cell (15). This reduces the risk of collision of uplink access requests on the request channel by distributing the requests over several cells (15, 25, 35, 45) instead of a single cell (15).

    REDUNDANCY ACTIVATION FOR VOICE OVER INTERNET TRANSMISSIONS
    10.
    发明公开
    REDUNDANCY ACTIVATION FOR VOICE OVER INTERNET TRANSMISSIONS 审中-公开
    冗余激活用于语音互联网广播

    公开(公告)号：EP1980043A1

    公开(公告)日：2008-10-15

    申请号：EP06733488.8

    申请日：2006-05-12

    申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)

    发明人： HANNU, Hans ,  ERICSON, Mårten ,  WÄNSTEDT, Stefan

    IPC分类号： H04L1/18 ,  H04L29/06 ,  H04L12/26 ,  H04L12/56

    CPC分类号： H04L47/14 ,  H04L1/0009 ,  H04L1/0014 ,  H04L1/0015 ,  H04L1/0025 ,  H04L1/08 ,  H04L12/6418 ,  H04L43/026 ,  H04L43/0852 ,  H04L43/087 ,  H04L43/16 ,  H04L47/10 ,  H04L47/11 ,  H04L47/18 ,  H04L47/2416 ,  H04L47/2441 ,  H04L47/25 ,  H04L47/263 ,  H04L47/283 ,  H04L47/29 ,  H04L47/30 ,  H04L47/32 ,  H04L47/33 ,  H04L47/38 ,  H04W28/12

    摘要： Adaptive redundancy is implemented (either switched on or off) for a voice over internet protocol (VoIP) packet connection by a basic two step approach. A first step of adaptive redundancy implementation involves monitoring relevant sources or indicators to determine when the need for redundancy (e.g., redundancy coding) may arise. The monitored sources can be one or more of a transmission buffer(s); a receiving buffer(s): sender and/or receiver statistics. An example of such statistics are the statistics which can be obtained from RTCP protocol, e.g., number of packets/data bytes sent, number of packets/data bytes lost, jitter, etc. A second step of adaptive redundancy implementation involves the triggering of redundancy implementation events when the monitored sources reach or obtain certain threshold value(s) (threshold). Examples of such thresholds (one or more of which may be utilized) include: a number of packets (or bytes of data) in an transmission buffer; a number of lost packets (or bytes of data) calculated from a reception buffer; and, requisite sender and receiver statistics (such as number of packets/data bytes sent and/or being lost has reached a maximum/minimum amount). Examples of the second step implementation events thusly triggered include one or more of the following: ( 1 ) dropping or removing a number of packets (or bytes of data) in the transmission buffer, and (2) triggering a signaling message to the sending client and/or receiving client to switch on/off redundancy coding. The first and second steps of redundancy implementation can be repeated as needed. Scenarios of adaptive redundancy implementation include both network-initiated implementations (e.g.. implementations initiated by a radio access network (RAN)) and mobile-initiated implementations (e.g.. implementations initiated by a wireless station).