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    • 6. 发明申请
    • UPLINK ACCESS MANAGEMENT
    • 上传访问管理
    • WO2008066467A1
    • 2008-06-05
    • PCT/SE2007/050020
    • 2007-01-15
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)HANNU, HansJÖNSSON, Tomas
    • HANNU, HansJÖNSSON, Tomas
    • H04Q7/38
    • H04W72/005H04W4/10H04W48/06H04W76/45
    • 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).
    • 本发明涉及存在于通信系统(1)的相同第一小区(15)中的用户终端(210,220,230,240,250,260,270)的上行链路接入管理,并且参与涉及用户通信的通信会话 在公共下行链路信道上的数据到终端(210,220,230,240,250,260,270)。 当终端(210,220,230,240,250,260,270)希望响应用户数据传输时,它们首先必须请求上行链路接入。 根据本发明,至少一个终端(220,230,240)使用与不同于当前第一小区(15)的第二(25,35,45)小区相关联的请求信道来请求该上行链路接入。 这通过在几个小区(15,25,35,45)上分配请求而不是单个小区(15)来减少在请求信道上的上行链路接入请求的冲突的风险。
    • 7. 发明申请
    • ADAPTING PLAYOUT BUFFER BASED ON AUDIO BURST LENGTH
    • 基于音频冲击长度适配播放缓冲器
    • WO2005046133A1
    • 2005-05-19
    • PCT/SE2003/001740
    • 2003-11-11
    • TELEFONAKTIEBOLAGET LM ERICSSON (publ)JÖNSSON, TomasHANNU, Hans
    • JÖNSSON, TomasHANNU, Hans
    • H04L12/28
    • H04L65/80H04L49/90H04L49/901H04L65/4061
    • 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.
    • 本发明涉及适用于临时存储数据分组的大小可变播放缓冲器(120),所述数据分组包括在用户设备(100)上通过通信系统(1)接收的突发音频数据。 临时存储和大小变化补偿通信系统(1)上的比特率或任何传输延迟的变化。 根据本发明,基于音频突发长度来适配播放缓冲器(120)的大小。 通常,基于多个音频突发的长度值来控制缓冲器大小,例如, 多个音频突发长度的平均值,包括加权平均长度。 在平均化中要使用的音频突发长度的数量(M)优选地基于音频突发长度(平均值)来动态地确定。 播放缓冲器(120)适用于支持蜂窝通信(PoC)服务的通信系统(1)。