Adaptive feedback method of cellular communication
    21.
    发明公开
    Adaptive feedback method of cellular communication 有权
    韦尔法罕zur适应Rückführungssteuerungvon zellularer Kommunikation

    公开(公告)号:EP1722512A1

    公开(公告)日:2006-11-15

    申请号:EP06008225.2

    申请日:2006-04-20

    摘要: In an adaptive feedback method for a cellular communication system having plural terminals feeding back channel information to an access point, the system selects one of an opportunistic mode and a polling mode as a feedback mode between an access point and the terminals on the basis of system and traffic parameters, sets up the access point and the terminals for the selected feedback mode, and feeds back the channel information from the terminals to the access point in the selected feedback mode. The adaptive feedback method changes the feedback mechanism adaptively to the system and traffic environment, making it possible to increase the system throughput as well as to decrease the MAC overhead regardless of the variation of the number of MSs.

    摘要翻译: 在具有多个终端向接入点反馈信道信息的蜂窝通信系统的自适应反馈方法中,系统基于系统选择机会模式和轮询模式之一作为接入点与终端之间的反馈模式 和业务参数,设置所选择的反馈模式的接入点和终端,并且在所选择的反馈模式中将信道信息从终端反馈到接入点。 自适应反馈方法将反馈机制自适应地改变为系统和业务环境,使得可以增加系统吞吐量以及降低MAC开销,而不管MS数量的变化如何。

    Method for transmitting broadcast channels in a cellular wireless communication system
    22.
    发明公开
    Method for transmitting broadcast channels in a cellular wireless communication system 有权
    在einem zellularen drahtlosen社区系统中的Verfahren zumÜbertragenvonRundsendekanälen

    公开(公告)号:EP1681812A1

    公开(公告)日:2006-07-19

    申请号:EP06000751.5

    申请日:2006-01-13

    IPC分类号: H04L12/56 H04Q7/38

    CPC分类号: H04W48/12

    摘要: A method for transmitting to one cell a frame including broadcast channels in a cellular wireless communication system in which a base station supports a plurality of physical channels corresponding to the broadcast channels. The base station generates the frame and transmits the generated frame to a mobile station. The frame includes separate broadcast channels for the respective physical channels. A position, in the frame, of a first broadcast channel for a physical channel capable of supporting a mobile station having the worst channel state is fixed in all of transmission frames. The first broadcast channel includes positional information of the remaining broadcast channels except for the first broadcast channel. The mobile station detects only an address of a broadcast channel for a physical channel allocated thereto from the first broadcast channel among broadcast channels belonging to the frame.

    摘要翻译: 一种用于在蜂窝无线通信系统中向一个小区发送包括广播信道的帧的方法,其中基站支持对应于广播信道的多个物理信道。 基站生成帧并将生成的帧发送到移动站。 该帧包括用于相应物理信道的单独的广播信道。 在帧的位置,能够支持具有最差信道状态的移动站的物理信道的第一广播信道的位置在所有传输帧中都是固定的。 第一广播频道包括除第一广播频道之外的剩余广播频道的位置信息。 移动台仅在属于该帧的广播信道中从第一广播信道检测分配给其的物理信道的广播信道的地址。

    Method for controlling operational states of a MAC layer in an OFDM mobile communication system
    23.
    发明公开
    Method for controlling operational states of a MAC layer in an OFDM mobile communication system 有权
    用于在OFDM移动通信系统中操作MAC层的状态的控制程序

    公开(公告)号:EP1487156A3

    公开(公告)日:2006-06-07

    申请号:EP04013901.6

    申请日:2004-06-14

    发明人: Cho, Sung-Hyun

    IPC分类号: H04L12/28 H04B7/26 H04Q7/38

    CPC分类号: H04W74/08 H04W76/27

    摘要: A mobile communication system includes a medium access control (MAC) layer, and the MAC layer supports an idle state (719) in which no downlink and uplink dedicated control channel and dedicated traffic channel exists and also supports an active state (711) in which the downlink and uplink dedicated control channel and dedicated traffic channel exist. The MAC layer controls transitioning to a contention state (717) and then transitioning from the contention state (717) to the active state (711) through contention-based access, if there is transmission data in the idle state; transitioning to a fast access state (713) or a slow access state (715) according to priority of the data if there is no transmission data in the active state (711) for a preset time; transitioning to the active state (711) through contention-free-based access if there is transmission data in the fast access state (713); and transitioning to the active state (711) through contention-free-based access if there is transmission data in the slow access state (715).

    HANDOVER FOR AN OFDM WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:EP1608121B1

    公开(公告)日:2018-05-30

    申请号:EP05013167.1

    申请日:2005-06-17

    IPC分类号: H04W16/12 H04W36/18

    摘要: An OFDM mobile communication system includes a system controller for dividing an OFDM symbol into a control channel and a data channel, multiplexing the control channel to control subchannels, and allocating the multiplexed control subchannels to base stations. The base stations simultaneously transmit control signals on the control allocated subchannels and data on the data channel. Mobile nodes receive an OFDM symbols with the multiplexed control channels for them and a data channel for selecting a base station according to information in the control subchannels. The mobile node simultaneously processes control subchannels received from two base stations using one physical layer module.

    Dynamic channel allocation method in an OFDMA mobile communication system
    28.
    发明公开
    Dynamic channel allocation method in an OFDMA mobile communication system 有权
    欧洲OFDMA移动通信系统中的Verfahren zur dynamischen Kanalzuteilung

    公开(公告)号:EP1740006A1

    公开(公告)日:2007-01-03

    申请号:EP06013272.7

    申请日:2006-06-27

    IPC分类号: H04Q7/38 H04Q7/36

    摘要: A method of sending feedback information used for dynamic channel allocation, and allocating resources based on the feedback information in an OFDMA mobile communication system is provided. For this purpose, an MS feeds back channel gain variations at channel status measuring points distributed across a total frequency band to a BS. The BS estimates the channel status of the MS using the channel gain variations, and allocates optimal resources to the MS according to the estimated channel status.

    摘要翻译: 提供一种发送用于动态信道分配的反馈信息的方法,并且在OFDMA移动通信系统中基于反馈信息分配资源。 为此,MS将在整个频带上分布的信道状态测量点的信道增益变化反馈给BS。 BS使用信道增益变化来估计MS的信道状态,并且根据估计的信道状态向MS分配最佳资源。

    Apparatus and method for scheduling transmission of data packets in a multichannel wireless communication system
    29.
    发明公开
    Apparatus and method for scheduling transmission of data packets in a multichannel wireless communication system 有权
    装置和方法用于规划在多信道无线通信系统中数据包的传输

    公开(公告)号:EP1739902A1

    公开(公告)日:2007-01-03

    申请号:EP06013273.5

    申请日:2006-06-27

    IPC分类号: H04L12/56

    摘要: A method and apparatus for scheduling the data packets transmitted to a plurality of mobile terminals supporting multiple quality of service (QoS) grades in a multichannel wireless communication system includes a storage device for storing queues and data packets of the mobile stations, the queue and data packets of each of the mobile stations being arranged in an order of the quality of service grades; and a scheduler for allocating resources of multiple channels to the mobile stations based on different scheduling metrics separately applied to the multiple channels according to the quality of service grades, each of the scheduling metrics applied to a particular one of channels being used to select one of the mobile stations whose data packets are transmitted through the particular channel; wherein entire data packets of the mobile stations are transmitted through the multiple channels when the allocation of the channel resources has been completed sequentially for each of the multiple channels.

    Method for transmitting uplink data during handoff in a cellular system
    30.
    发明公开
    Method for transmitting uplink data during handoff in a cellular system 有权
    在einem Zellularsystem中的VerfahrenfürAufwärtsrichtungsdatenübertragungwährenddem Weiterreichen

    公开(公告)号:EP1732348A2

    公开(公告)日:2006-12-13

    申请号:EP06012065.6

    申请日:2006-06-12

    IPC分类号: H04Q7/38

    CPC分类号: H04W36/18 H04B7/022

    摘要: Disclosed is a method for transmitting an uplink data during handoff A method for transmitting uplink data in a soft handoff system, in which a mobile station is simultaneously connected with at least two base transceiver systems under a control of a base station controller, includes selecting one of the base transceiver systems as a main base transceiver system, transmitting uplink signals to the main base transceiver system and sub-base transceiver systems, and transmitting by the sub-base transceiver systems received uplink signals to the main base transceiver system. Through the method, a main BTS for diversity combining and decoding soft bit strings is established among BTSs connected to a mobile station, so that it is possible to distribute a data processing amount centralized on a BSC to a BTS.

    摘要翻译: 公开了一种在切换期间发送上行链路数据的方法。在软切换系统中发送上行链路数据的方法,其中移动站在基站控制器的控制下与至少两个基站收发器系统同时连接,包括选择一个 的基站收发器系统作为主基站收发机系统,将上行链路信号发送到主基站收发器系统和子基站收发器系统,并且由子基站收发器系统将接收的上行链路信号发送到主基站收发信机系统。 通过该方法,在连接到移动台的BTS之间建立用于分集组合和解码软比特串的主BTS,从而可以将集中在BSC上的数据处理量分配给BTS。