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    BEACON SYMBOL ORTHOGONALIZATION
    32.
    发明公开
    BEACON SYMBOL ORTHOGONALIZATION 审中-公开
    BEACONSYMBOL-ORTHOGONALISIERUNG

    公开(公告)号：EP2087682A1

    公开(公告)日：2009-08-12

    申请号：EP07844658.0

    申请日：2007-10-26

    申请人： QUALCOMM Incorporated

    发明人： PALANKI, Ravi ,  GOROKHOV, Alexei ,  KHANDEKAR, Aamod ,  AGRAWAL, Avneesh

    IPC分类号： H04L27/26

    CPC分类号： H04L27/261 ,  H04W28/00 ,  H04W72/04

    摘要： Beacon symbols are sent periodically from the base stations in an OFDM system. The entire power of the base station, or a large portion of it is concentrated in these symbols, thus they are very easily recognized by the mobile stations. The frequencies upon which these symbols are transmitted and the time at which they are transmitted communicates information such as the base station/sector identity and the preferred carrier of the given base station/sector to the mobile station. In order to avoid collision between the beacon symbols of different base stations and sectors, the beacon symbols from different base stations/sectors are transmitted at different symbols times and on different subcarriers.

    SIGNAL ACQUISITION IN A WIRELESS COMMUNICATION SYSTEM
    33.
    发明公开
    SIGNAL ACQUISITION IN A WIRELESS COMMUNICATION SYSTEM 有权
    EINEM DRAHTLOSEN NACHRICHTENTECHNIKSSYSTEM中的信号

    公开(公告)号：EP2025070A2

    公开(公告)日：2009-02-18

    申请号：EP07762293.4

    申请日：2007-05-22

    申请人： Qualcomm Incorporated

    发明人： GOROKHOV, Alexei ,  KHANDEKAR, Aamod ,  PALANKI, Ravi

    IPC分类号： H04B1/707 ,  H04L27/26

    CPC分类号： H04L27/2613 ,  H04B1/7075 ,  H04B2201/70701 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2655

    摘要： Systems and methodologies are described that generate pilots for signal acquisition in a wireless communication system based on time domain sequences. The pilots may be generated by a base station and transmitted in a pilot field to one or more access terminals to aid in signal acquisition at each of the access terminals. One of the pilots may be common to all access points in the wireless communication system, thereby allowing an access terminal to obtain a timing estimate for the system while minimizing the effects of interference variations between base stations. Further, one or more generated pilots may be unique to each access point in order to allow each respective access point to be identified by its generated pilots.

    摘要翻译： 一种用于在无线通信系统中发送采集导频的方法和装置，包括基于发射机实体的身份的比特的一部分生成第一采集导频，基于所述发射机实体的身份的所有比特生成第二采集导频 ，以第一时间间隔发送所述第一采集导频，并在第二时间间隔发送所述第二采集导频。

    CONFIGURABLE PILOTS IN A WIRELESS COMMUNICATION SYSTEM
    36.
    发明公开
    CONFIGURABLE PILOTS IN A WIRELESS COMMUNICATION SYSTEM 有权
    可配置的飞行员无线通信系统

    公开(公告)号：EP1917773A1

    公开(公告)日：2008-05-07

    申请号：EP06813675.3

    申请日：2006-08-22

    申请人： Qualcomm Incorporated

    发明人： AKKARAKARAN, Sony, John ,  KHANDEKAR, Aamod

    IPC分类号： H04L27/26 ,  H04L1/18 ,  H04B1/69

    CPC分类号： H04L1/1812 ,  H04B1/713 ,  H04L1/0006 ,  H04L1/1887 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/262

    摘要： Techniques for transmitting configurable pilots in a wireless communication system are described. The placement of pilots is determined based on an assignment of resources for transmission. Different placements of pilots are used for different assignments of resources. The assignment may be for one or more frames and/or one or more H-ARQ interlaces. The placement of pilot(s) in each frame or H-ARQ interlace may be determined based on the placement of pilot(s) in prior frame(s) or H-ARQ interlace(s). Pilots are sent at time and frequency locations determined by the placement of the pilots. Each pilot may be sent on one or more subcarriers in one or more symbol periods. The pilots may be TDM pilots and/or some other type of pilot. The pilots may be sent using IFDMA, LFDMA, EFDMA, OFDMA, or some other multiplexing scheme.

    RATE PREDICTION IN FRACTIONAL REUSE SYSTEMS
    40.
    发明公开
    RATE PREDICTION IN FRACTIONAL REUSE SYSTEMS 有权
    RATENPRÄDIKTION分数回用系统

    公开(公告)号：EP1774688A1

    公开(公告)日：2007-04-18

    申请号：EP05771458.6

    申请日：2005-07-14

    申请人： Qualcomm Incorporated

    发明人： KHANDEKAR, Aamod ,  AGRAWAL, Avneesh

    IPC分类号： H04L1/00 ,  H04L1/20 ,  H04L5/02 ,  H04Q7/38

    CPC分类号： H04L1/0015 ,  H04L1/0002 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/1812 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/006 ,  H04L27/2601 ,  H04W16/02 ,  H04W16/12

    摘要： Apparatus and methods for rate prediction in a wireless communication system having fractional frequency reuse are disclosed. A wireless communication system implementing Orthogonal Frequency Division Multiple Access (OFDMA) can implement a fractional frequency reuse plan where a portion of carriers is allocated for terminals not anticipating handoff and another portion of the carriers is reserved for terminals having a higher probability of handoff. Each of the portions can define a reuse set. The terminals can be constrained to frequency hop within a reuse set. The terminal can also be configured to determine a reuse set based on a present assignment of a subset of carriers. The terminal can determine a channel estimate and a channel quality indicator based in part on at least the present reuse set. The terminal can report the channel quality indicator to a source, which can determine a rate based on the index value.