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    • 4. 发明申请
    • Dynamic RS coverage in multi-hop cellular networks
    • 多跳蜂窝网络中的动态RS覆盖
    • US20070184869A1
    • 2007-08-09
    • US11505253
    • 2006-08-16
    • Changhoi KooPurva R. RajkotiaJoseph R. Cleveland
    • Changhoi KooPurva R. RajkotiaJoseph R. Cleveland
    • H04B7/00
    • H04B7/15535H04B7/2606H04W16/26H04W52/343
    • For use in a wireless network, a controller for relay stations. The relay station increases cell coverage and user data rates while employing power consumption saving techniques. The relay station compares a threshold power setting with a current power setting. If the threshold power setting is greater than the current power setting, the relay station increments the threshold power setting and decreases the cell coverage. If the threshold power setting is less than or equal to the current power setting, the relay station decreases the threshold power setting until the threshold power setting is equal to a total power setting of the relay station. The relay station also employs load balancing techniques by comparing a threshold power setting with a current load setting. If the threshold power setting is greater than the current load setting, the relay station increases the cell coverage based on the available bandwidth.
    • 用于无线网络,用于中继站的控制器。 中继站在采用省电技术的同时增加了小区覆盖率和用户数据速率。 中继站将阈值功率设置与当前功率设置进行比较。 如果阈值功率设置大于当前功率设置,则中继站递增阈值功率设置并减小蜂窝区覆盖。 如果阈值功率设置小于或等于当前功率设置,则中继站降低阈值功率设置,直到阈值功率设置等于中继站的总功率设置为止。 中继站还通过将阈值功率设置与当前负载设置进行比较来采用负载平衡技术。 如果阈值功率设置大于当前负载设置,则中继站将根据可用带宽增加小区覆盖范围。
    • 8. 发明授权
    • Channel configuration and bandwidth allocation in multi-hop cellular communication networks
    • 多跳蜂窝通信网络中的信道配置和带宽分配
    • US08391254B2
    • 2013-03-05
    • US11465944
    • 2006-08-21
    • Changhoi KooPurva R. Rajkotia
    • Changhoi KooPurva R. Rajkotia
    • H04W4/00
    • H04W88/04H04B7/15542H04B7/2606H04W28/20H04W72/00H04W72/0453H04W84/047H04W84/12
    • A multi-hop wireless communication network is disclosed, which includes a fixed communication unit, at least one mobile communication unit, and a relay communication unit. The relay communication unit is operable to relay a plurality of signals bi-directionally between the fixed communication unit and the at least one mobile communication unit, by receiving a first signal on at least one of a dedicated sub-carrier and a dynamic sub-carrier in a first downlink channel segment from the fixed communication unit, and transmitting the received first signal to the at least one mobile communication unit on a dynamic sub-carrier in a second downlink channel segment. Also, the relay communication unit is operable to receive a second signal on a dynamic sub-carrier in a first uplink channel segment from the at least one mobile communication unit, and transmit the received second signal to the fixed communication unit on at least one of a dedicated sub-carrier and a dynamic sub-carrier in a second uplink channel segment. Also, the fixed communication unit can allocate bandwidth dynamically or in a fixed amount in the first downlink channel segment, the relay communication unit can allocate bandwidth dynamically in the second downlink channel segment based on at least one Quality of Service value received from the at least one mobile communication unit, the relay communication unit can allocate bandwidth dynamically for the at least one mobile communication unit in the first uplink channel segment, and the fixed communication unit can allocate bandwidth dynamically or in a fixed amount for the relay communication unit in the second uplink channel segment.
    • 公开了一种多跳无线通信网络,其包括固定通信单元,至少一个移动通信单元和中继通信单元。 中继通信单元可操作以通过在专用子载波和动态子载波中的至少一个上接收第一信号来在固定通信单元与至少一个移动通信单元之间双向中继多个信号 在来自固定通信单元的第一下行链路信道段中,并且在第二下行链路信道段中的动态子载波上将所接收的第一信号发送到所述至少一个移动通信单元。 此外,中继通信单元可操作以在来自至少一个移动通信单元的第一上行链路信道段中的动态子载波上接收第二信号,并且将所接收的第二信号发送到固定通信单元 第二上行链路信道段中的专用子载波和动态子载波。 此外,固定通信单元可以在第一下行链路信道段中动态地或固定地分配带宽,中继通信单元可以基于从至少一个接收到的至少一个服务质量值在第二下行链路信道段中动态地分配带宽 一个移动通信单元,所述中继通信单元可以为所述第一上行链路信道段中的所述至少一个移动通信单元动态地分配带宽,并且所述固定通信单元可以在所述第二上行链路信道中为所述中继通信单元动态地或以固定的量分配带宽 上行信道段。
    • 9. 发明授权
    • Bandwidth allocation and soft handoff in multi-hop cellular communication networks
    • 多跳蜂窝通信网络中的带宽分配和软切换
    • US08059590B2
    • 2011-11-15
    • US11534050
    • 2006-09-21
    • Purva R. RajkotiaChanghoi KooWilliam Joseph Semper
    • Purva R. RajkotiaChanghoi KooWilliam Joseph Semper
    • H04B3/36
    • H04B7/2123H04B7/022H04B7/0669H04L1/0041H04L1/0045H04L1/0606H04L1/0618H04L2001/0093H04W36/18H04W72/0413H04W72/042H04W72/0453
    • Methods and systems for allocating bandwidth and performing soft handoffs in multi-hop cellular communication networks are disclosed. For example, a method for allocating bandwidth is disclosed, which includes the steps of a first communication device transmitting a first bandwidth allocation request, responsive to receipt of the first bandwidth allocation request, a second communication device transmitting a first bandwidth allocation value, responsive to receipt of the first bandwidth allocation request, a third communication device transmitting a second bandwidth allocation value, the first communication device comparing the first bandwidth allocation value with the second bandwidth allocation value, a fourth communication device transmitting a third bandwidth allocation request, and responsive to receipt of the third bandwidth allocation request and the comparing step, the first communication device transmitting a third bandwidth allocation value, the third bandwidth allocation value including at least one of the first bandwidth allocation value and the second allocation value.
    • 公开了在多跳蜂窝通信网络中分配带宽和执行软切换的方法和系统。 例如,公开了一种用于分配带宽的方法,其包括响应于接收到第一带宽分配请求而发送第一带宽分配请求的第一通信设备的步骤,发送第一带宽分配值的第二通信设备,响应于 接收第一带宽分配请求,发送第二带宽分配值的第三通信装置,将第一带宽分配值与第二带宽分配值进行比较的第一通信装置,发送第三带宽分配请求的第四通信装置, 接收第三带宽分配请求和比较步骤,第一通信设备发送第三带宽分配值,第三带宽分配值包括第一带宽分配值和第二分配值中的至少一个。