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    • 71. 发明授权
    • Wireless communication system
    • 无线通信系统
    • US08175598B2
    • 2012-05-08
    • US12752720
    • 2010-04-01
    • Shigeyasu KuboYosuke TakahashiAkihiko YoshidaDaigo Takayanagi
    • Shigeyasu KuboYosuke TakahashiAkihiko YoshidaDaigo Takayanagi
    • H04W4/00
    • H04W60/00H04W8/205H04W68/00
    • A wireless communication system including a wireless terminal, a plurality of base stations and a call processing control unit is disclosed. The wireless terminal, upon reception of the notification information from any of the base stations, judges whether the area included in the notification information is contained in the location registration area list stored in a storage unit, and in the case where the particular area is not so contained, sends a location registration request to the call processing control unit. On the other hand, the call processing control unit creates a new location registration area list based on the area included in the notification information and the neighboring areas, and sends the location registration area list to the wireless terminal.
    • 公开了一种包括无线终端,多个基站和呼叫处理控制单元的无线通信系统。 无线终端在从任何基站接收到通知信息后,判断包含在通知信息中的区域是否包含在存储单元中存储的位置登录区域列表中,并且在特定区域不存在的情况下 如此包含,向呼叫处理控制单元发送位置登记请求。 另一方面,呼叫处理控制单元基于包含在通知信息和相邻区域中的区域来创建新的位置注册区域列表,并将位置登记区域列表发送到无线终端。
    • 73. 发明授权
    • Radio communication apparatus
    • 无线通信装置
    • US08094600B2
    • 2012-01-10
    • US12055824
    • 2008-03-26
    • Akihiko YoshidaShiro MazawaKiyoshi KawamotoYosuke TakahashiKeiji Usuba
    • Akihiko YoshidaShiro MazawaKiyoshi KawamotoYosuke TakahashiKeiji Usuba
    • H04H20/71
    • H04W28/12H04B7/2659H04L12/189H04W4/06
    • A radio communication system including: ANs (Access Networks) for wirelessly communicating with an AT (Access Terminal); and a communication control apparatus for controlling the AN, wherein the communication control apparatus includes: a control unit for sending transmission cycle information and control information to the AN, and wherein the AN includes: a memory for storing information necessary for transmitting the communication information to the AT; a control unit for transmitting the transmission cycle information received from the communication control apparatus to the AT, calculating a transmission slot number necessary for sending the communication information in the transmission cycle, determining a transmission timing indicating a period in the predetermined transmission cycle allocated for the communication information, and transmitting the communication information in the determined transmission timing to the AT.
    • 一种无线电通信系统,包括:用于与AT(接入终端)进行无线通信的AN(接入网络); 以及用于控制AN的通信控制装置,其中,所述通信控制装置包括:控制单元,用于向所述AN发送发送周期信息和控制信息,并且其中所述AN包括:存储器,用于存储将所述通信信息发送到 AT; 控制单元,用于将从通信控制装置接收到的发送周期信息发送给AT,计算在发送周期中发送通信信息所需的发送时隙号,确定指示在为该发送周期分配的预定发送周期中的周期的发送定时 通信信息,并将所确定的发送定时中的通信信息发送给AT。
    • 75. 发明申请
    • COMMUNICATION SYSTEM USING MULTIPLE WIRELESS RESOURCES DURING A SOFT HANDOFF
    • 在软件中使用多个无线资源的通信系统
    • US20110142007A1
    • 2011-06-16
    • US13031542
    • 2011-02-21
    • May TakadaYosuke TakahashiShiro MazawaRintaro Katayama
    • May TakadaYosuke TakahashiShiro MazawaRintaro Katayama
    • H04W36/00
    • H04W36/18H04W36/28
    • In a wireless communications system operating according to CDMA or the like, when one terminal simultaneously performs communication using multiple wireless resources (e.g., multiple carriers), there was a problem that when it was attempted to guarantee network mobility by the same soft handoff system as in the case where communication was performed using only one wireless resource, efficiency suffered from the viewpoint of network forwarding load, processing load and wireless resource occupancy time. Soft handoff termination is judged and soft handoff is forcibly terminated according to whether or not the data rate obtained for all resources on the network side satisfies a requested rate, based on a reception state notification from a terminal concerning wireless resources. By performing this processing, the soft handoff period is shortened, sufficient received strength in the terminal is maintained and terminal mobility is guaranteed, while at the same time network forwarding load, terminal processing load and wireless resource occupancy time are suppressed to the absolute minimum.
    • 在根据CDMA等操作的无线通信系统中,当一个终端同时使用多个无线资源(例如,多个载波)进行通信时,存在如下问题:当尝试通过相同的软切换系统来保证网络移动性时 在仅使用一个无线资源进行通信的情况下,从网络转发负载,处理负荷和无线资源占用时间的观点来看,效率受到影响。 根据来自有关无线资源的终端的接收状态通知,根据网络侧所有资源获得的数据速率是否满足请求速率,判断软切换终止,并强制终止软越区切换。 通过执行该处理,可以缩短软切换时段,维持终端的接收强度,确保终端移动性,同时将网络转发负载,终端处理负荷和无线资源占用时间抑制到绝对最小。
    • 77. 发明申请
    • Wireless Communication System, Session Reference Network Controller, and Session Reference Network Control Method
    • 无线通信系统,会话参考网络控制器和会话参考网络控制方法
    • US20100081436A1
    • 2010-04-01
    • US12486867
    • 2009-06-18
    • Shigeyasu KUBOYosuke TakahashiAkihiko YoshidaDaigo Takayanagi
    • Shigeyasu KUBOYosuke TakahashiAkihiko YoshidaDaigo Takayanagi
    • H04W60/00
    • H04W60/04H04W84/042H04W88/12
    • In a conventional system, there is a possibility that human errors are generated in setting registration information because a maintenance engineer manually enters registration information into a session reference network controller which integrally controls access terminals and base stations. To improve the system, session reference network controller a session reference network controller stores the number of access terminals, N, in advance. And, when a “base distance” setting request is received from an access terminal via a base station, the session reference network controller or an OAM (Operation, Administration and Maintenance) server determines a base station, which is one of a plurality of controlled base stations and is Nth nearest from the base station that has transmitted the setting request, and sets the distance between the base station, which has transmitted the setting request, and the base station, which is Nth nearest, as the “base distance”.
    • 在常规系统中,由于维护工程师将注册信息手动输入到整体控制接入终端和基站的会话参考网络控制器中,因此在设置注册信息中存在人为错误的可能性。 为了改进系统,会话参考网络控制器一个会话参考网络控制器预先存储接入终端数量N。 而且,当经由基站从接入终端接收到“基本距离”设定请求时,会话参考网络控制器或OAM(Operation,Administration and Maintenance)服务器确定基站,其为多个被控制的 并且与已经发送设置请求的基站最近的Nth,并且将已经发送了设置请求的基站与第N个最近的基站之间的距离设置为“基本距离”。
    • 79. 发明申请
    • RADIO BASE STATION AND SCHEDULING METHOD
    • 无线基站和调度方法
    • US20090196241A1
    • 2009-08-06
    • US12336655
    • 2008-12-17
    • Atsushi AbeMasanori TairaShiro MazawaYosuke Takahashi
    • Atsushi AbeMasanori TairaShiro MazawaYosuke Takahashi
    • H04W72/04
    • H04W72/1231H04W28/22H04W72/0446
    • The present invention is to accommodate a large number of users required in a digital radio communication system and to prevent communication quality from deteriorating. The present invention is to prevent the occurrence of a delay by adding a process for restricting packet assignment for a call having low communication quality. When the average DRC value is equal to or smaller than a threshold, assigned slots are thinned out to improve communication quality for radio terminals close to cell boundaries and to increase the number of radio terminals accommodated. As a method for thinning out assigned slots, packets received from an upper level unit of a radio base station are, for example, discarded before transmission as long as the lowest limit sound quality is maintained. With this operation, the lowest limit sound quality is ensured.
    • 本发明是为了适应数字无线电通信系统中所需的大量用户,并且防止通信质量恶化。 本发明是为了通过添加用于限制通信质量低的呼叫的分组分配的处理来防止发生延迟。 当平均DRC值等于或小于阈值时,分配的时隙被稀疏以提高接近小区边界的无线电终端的通信质量并增加收容的无线电终端的数量。 作为用于稀疏分配的时隙的方法,只要保持最低限度音质,则例如在传输之前,从无线基站的上级单元接收的分组被丢弃。 通过该操作,可以确保最低音质。