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    • 2. 发明授权
    • Dynamic DCH allocation methodology for packet data services in a wireless communications system
    • 用于无线通信系统中分组数据业务的动态DCH分配方法
    • US07206286B2
    • 2007-04-17
    • US10202271
    • 2002-07-24
    • Santosh P AbrahamChing-Roung ChouMooi Choo ChuahPhilip Charles SapianoSteven E. Sommars
    • Santosh P AbrahamChing-Roung ChouMooi Choo ChuahPhilip Charles SapianoSteven E. Sommars
    • H04J1/16
    • H04W36/26
    • In a UMTS network, each packet data service user requires a dedicated channel (DCH) to transmit at high data rates. However, the number of DCHs available is small due to code and power limitations. Thus many users will have to be allocated the same DCH on a time sharing basis. Such sharing will not impact the quality of service for users whose applications are not delay sensitive and whose traffic generation pattern toggles between transmit and idle states. Such applications include web browsing, FTP sessions and E-mail. The present invention discloses four algorithms that can be used to dynamically allocate DCH channels to a contending user based on the user's need according to its traffic generation. One embodiment of the invention discloses a methodology of allocating user channels for packet data services in a wireless communications network, a first type channel having a given data rate and a second type channel having a lower data rate, including the steps of determining an estimated bandwidth requirement for the packet data services, switching a user to the second channel type from said first channel type if said estimated bandwidth requirement is below a first threshold, and switching a user to the first channel type from said second channel type if the estimated bandwidth requirement is greater than a second threshold. Another embodiment discloses methodology of allocating user channels for packet data services in a wireless communications network, a first type channel having a given data rate and a second type channel having a lower data rate, comprising the steps of providing an inactivity timer per user, and switching from the first channel type to said second channel type depending on a state of said inactivity timer.
    • 在UMTS网络中,每个分组数据业务用户需要专用信道(DCH)以高数据速率进行发送。 然而,由于代码和功率限制,DCH的数量很少。 因此,许多用户将必须在时间分配的基础上分配相同的DCH。 这种共享不会影响其应用不延迟敏感并且其业务生成模式在发送和空闲状态之间切换的用户的服务质量。 这样的应用程序包括网页浏览,FTP会话和电子邮件。 本发明公开了四种算法,可以根据用户的流量生成,根据用户需要,动态地向竞争用户分配DCH信道。 本发明的一个实施例公开了一种在无线通信网络中分配用户信道用于分组数据业务的方法,具有给定数据速率的第一类型信道和具有较低数据速率的第二类型信道,包括以下步骤:确定估计带宽 对于分组数据业务的要求,如果所述估计的带宽要求低于第一阈值,则从所述第一信道类型切换用户到第二信道类型,并且如果估计的带宽需求,则将用户切换到来自所述第二信道类型的第一信道类型 大于第二阈值。 另一实施例公开了在无线通信网络中分配用户信道用于分组数据业务的方法,具有给定数据速率的第一类型信道和具有较低数据速率的第二类型信道,包括以下步骤:为每个用户提供不活动定时器,以及 根据所述不活动定时器的状态,从第一通道类型切换到所述第二通道类型。
    • 4. 发明授权
    • Method and apparatus for distributing data traffic among the trunks
connecting communication switches
    • 在连接通信交换机的中继线之间分配数据业务的方法和装置
    • US5386414A
    • 1995-01-31
    • US123317
    • 1993-09-17
    • Ching-Roung ChouPaul A. RupsisDavid H. Shur
    • Ching-Roung ChouPaul A. RupsisDavid H. Shur
    • H04L12/56H04Q3/66H04Q11/04
    • H04L49/3081H04L12/56H04Q11/0478H04Q3/66H04L2012/5619H04Q2213/13141H04Q2213/13164H04Q2213/13166H04Q2213/13332H04Q2213/13353
    • A method and apparatus that uses the number of in-service trunks in each trunk group connected to a communication switch as the number of indices that are contained in its respective trunk group distribution table. Each of the indices of each trunk group distribution table corresponds to a single trunk ID of a respective in-service trunk of the trunk group. The method provides for a uniform distribution of call assignments among the indices. Thus, with the uniform distribution of indices, the assignment of trunks to calls will also be uniformly distributed. With trunk traffic distributed among all the trunks of a trunk group, the overall efficiency of the trunk group will be very high. Further, if a trunk group has a loss or an addition of one or more of its trunks, the method and apparatus also provides for a dynamic reforming of its trunk group distribution table such that each of the indices of the reformed table corresponds to a single trunk ID of an in-service trunk, thereby maintaining the uniform distribution and high efficiencies even when there is a change in equipment.
    • 使用连接到通信交换机的每个中继线群中的在役中继线的数量作为其各自中继线群组分发表中包含的索引的数量的方法和装置。 每个中继线组分配表的每个索引对应于中继线组的相应的在役中继线的单个中继线ID。 该方法提供了指数之间呼叫分配的均匀分布。 因此,随着指数的统一分配,中继线对呼叫的分配也将统一分配。 中继线分配在中继线组的所有中继线之间,中继线总线的总效率将非常高。 此外,如果中继线群具有一个或多个中继线的丢失或添加,则该方法和装置还提供其中继线群组分布表的动态重构,使得重整表中的每个索引对应于单个 即使在设备发生变化的情况下,仍然保持了均匀的分配和高效率。