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    • 42. 发明申请
    • METHOD AND APPARATUS FOR PROVIDING INDIVIDUAL POWER CONTROL INFORMATION IN A WIRELESS LOCAL AREA NETWORK/WIRELESS WIDE AREA NETWORK (WLAN/WWAN)
    • 在无线局域网/无线宽域网(WLAN / WWAN)中提供个体功率控制信息的方法和装置
    • WO2005065271A2
    • 2005-07-21
    • PCT/US2004/043404
    • 2004-12-22
    • INTERDIGITAL TECHNOLOGY CORPORATIONCHANDRA, ArtyHUNKELER, Teresa, Joanne
    • CHANDRA, ArtyHUNKELER, Teresa, Joanne
    • H04B7/005H04W52/28
    • H04W52/288
    • Method and apparatus employed by wireless network components such as access points (APs) for controlling transmitting power level of individual wireless transmitter/receiver units (WTRUs) by establishing a power transmit level based on prior transmit and receiving transmission and reception statistics such as signal to noise ratio (SNR), bit error rate (BER), frame error rate (FER) and/or the like. Power transmit level information is preferably communicated through any one of a clear to send (CTS), request to send (RTS), data and acknowledge (ACK) frame. Alternatively the power control information may be inserted into a beacon frame or an individual control frame specifically designated for power control. The WTRUs preferably have battery level sensors and adjust power control level responsive to a sensed battery level. Alternatively, the APs and WTRUs may reverse roles and the WTRUs may provide power transmit level information to an AP to facilitate transmissions by the AP.
    • 无线网络部件所采用的方法和装置,例如接入点(AP),用于通过基于先前发送和接收传输和接收统计信号建立功率发射电平来控制各个无线发射机/接收机单元(WTRU)的发射功率电平, 噪声比(SNR),误码率(BER),帧错误率(FER)等。 功率发送电平信息优选地通过清除发送(CTS),发送请求(RTS),数据和确认(ACK)帧中的任何一个来传送。 或者,功率控制信息可以被插入到专门用于功率控制的信标帧或单独的控制帧中。 WTRU优选地具有电池电平传感器并且响应于检测到的电池电平来调整功率控制电平。 或者,AP和WTRU可以反转角色,并且WTRU可以向AP提供功率传输级别信息以便于AP的传输。
    • 43. 发明申请
    • METHOD AND APPARATUS FOR SELECTING A MULTI-BAND ACCESS POINT TO ASSOCIATE WITH A MULTI-BAND MOBILE STATION
    • 用于选择多带接入点的方法和装置,用于与多个移动站相关联
    • WO2006107698A2
    • 2006-10-12
    • PCT/US2006/011634
    • 2006-03-30
    • INTERDIGITAL TECHNOLOGY CORPORATIONCHANDRA, Arty
    • CHANDRA, Arty
    • H04M1/00
    • H04W72/0453H04L5/0048H04W48/08H04W48/12H04W48/20H04W88/06H04W88/08H04W88/10Y02D70/142Y02D70/22
    • A method and apparatus for selecting one of a plurality of multi-band access points (APs) to associate with a multi-band wireless transmit/receive unit (WTRU) are disclosed. The multi-band APs broadcast frequency band information regarding multiple frequency bands on which the multi-band AP is configured to operate. The multi-band WTRU selects a particular multi-band AP to associate with and a frequency band to use to communicate with the selected multi-band AP based on the frequency band information. If the multi-band WTRU receives frequency band information from the selected multi-band AP which indicates that a characteristic, (e.g., throughput, path loss, load, capacity, backhaul), of the selected frequency band is unacceptable, the multi-band WTRU determines whether to disassociate with the selected multi-band AP or to continue to associate with the selected multi-band AP via a different frequency band.
    • 公开了一种用于选择与多频带无线发射/接收单元(WTRU)相关联的多个多频带接入点(AP)中的一个的方法和装置。 多频带AP广播关于多频带AP被配置为操作的多个频带的频带信息。 多频带WTRU基于频带信息,选择特定的多频带AP和用于与选定的多频带AP进行通信的频带。 如果多频带WTRU从所选择的多频带AP接收到频带信息,其指示所选频带的特性(例如,吞吐量,路径损耗,负载,容量,回程)是不可接受的,则该多频带 WTRU确定是否与所选择的多频带AP分离,或者通过不同的频带继续与所选择的多频带AP相关联。
    • 44. 发明申请
    • PEER-TO-PEER WIRELESS COMMUNICATION SYSTEM
    • 对等无线通信系统
    • WO2006081123A2
    • 2006-08-03
    • PCT/US2006/001840
    • 2006-01-19
    • INTERDIGITAL TECHNOLOGY CORPORATIONCHANDRA, ArtyLEVY, Joseph, S.GRANDHI, Sudheer A.ZEIRA, Eldad
    • CHANDRA, ArtyLEVY, Joseph, S.GRANDHI, Sudheer A.ZEIRA, Eldad
    • H04Q7/00H04L12/56
    • H04W28/16H04W76/14H04W84/18
    • A peer-to-peer communication system using a direct link setup (DLS) is disclosed. A mobile station (STA) establishes a direct communication link with another STA by sending a message requesting a DLS to an access point (AP), (i.e., a centralized controller). The AP may accept or reject the DLS request based on channel measurements. If the DLS request is accepted, the DLS is established such that the STAs may directly communicate with each other. An established DLS connection may be torn down by the AP sending a message including a DLS teardown request to one of the STAs, or based on channel measurements. The system may be an Ad hoc network comprising a plurality of STAs without an AP where each STA maintains a database of one-hop and two-hop STAs, and establishes a direct link to other STAs after informing neighboring STAs of an intention to establish a direct communication link.
    • 公开了一种使用直接链路建立(DLS)的对等通信系统。 移动站(STA)通过向接入点(AP)(即集中式控制器)发送请求DLS的消息来建立与另一个STA的直接通信链路。 AP可以基于信道测量接受或拒绝DLS请求。 如果DLS请求被接受,则建立DLS使得STA可以直接相互通信。 AP可以将建立的DLS连接拆除,其中包括向一个STA发送包括DLS拆卸请求的消息,或者基于信道测量。 该系统可以是包括多个没有AP的STA的Ad hoc网络,其中每个STA维护一跳和两跳STA的数据库,并且在通知相邻STA之后建立与其他STA的直接链路,以建立 直接沟通链接
    • 47. 发明申请
    • METHOD AND APPARATUS FOR DYNAMICALLY ADJUSTING DEFERRED TRANSMISSION LEVEL AND POWER LEVEL IN A WIRELESS COMMUNICATION SYSTEM
    • 在无线通信系统中动态调整延迟传输电平和功率电平的方法和装置
    • WO2006107887A1
    • 2006-10-12
    • PCT/US2006/012336
    • 2006-03-31
    • INTERDIGITAL TECHNOLOGY CORPORATIONMARINIER, PaulCHANDRA, Arty
    • MARINIER, PaulCHANDRA, Arty
    • H04B7/185H04Q7/00H04L12/413
    • H04W74/0816H04W52/241H04W52/242H04W52/38
    • The present invention is a method and apparatus for dynamically adjusting deferred transmission level and a transmission power level in a wireless communication system implementing carrier sense multiple access/collision avoidance (CSMA/CA) mechanism (figure 6). A plurality of transmission power levels and associated metrics are defined (602) for an access point (AP) and a wireless transmit/receive unit (WTRU). If a packet originated from a neighboring basic service set (BSS) is received, the metric is updated for each of the transmission power levels (608). The metric is increased if it is determined that transmission at a particular transmission power level associated to the metric would cause a partial defer to a sender and a receiver of the packet. The AP and the WTRU selects a transmission power level having a smallest metric (610). The AP and WTRU may also adjust the deferred transmission level in accordance with measurement results.
    • 本发明是一种实现载波侦听多路访问/冲突避免(CSMA / CA)机制的无线通信系统中动态调整延迟传输级别和传输功率级别的方法和装置(图6)。 为接入点(AP)和无线发射/接收单元(WTRU)定义多个发射功率电平和相关度量(602)。 如果从相邻基本业务集(BSS)发起的分组被接收到,则针对每个发射功率电平更新度量(608)。 如果确定在与度量相关联的特定发射功率电平处的传输将导致部分延迟到分组的发送者和接收者,则度量增加。 AP和WTRU选择具有最小度量的传输功率电平(610)。 AP和WTRU还可以根据测量结果调整延迟的传输级别。