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1. 发明申请

WO2004060011A1 RESOURCE GRANTING IN MULTI-CARRIER CDMA SYSTEMS 审中-公开
标题翻译：多载波CDMA系统中的资源分配
公开(公告)号：WO2004060011A1
公开(公告)日：2004-07-15
申请号：PCT/IB2003/005661
申请日：2003-12-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)
发明人： LUNDQVIST, Patrik, Nils , RUTH, Todd , YOON, Young
IPC分类号： H04Q7/38
CPC分类号： H04W16/10 , H04L5/026 , H04W28/08 , H04W28/10 , H04W36/18 , H04W36/30 , H04W72/02 , H04W72/0413 , H04W72/0453
摘要： In one embodiment, a multi-carrier CDMA network grants radio link resources to a mobile station by maximizing soft handoff conditions, by preserving frequency continuity with the mobile station, or by load balancing across carrier frequencies in two or more cells, or by some combination thereof. The network identifies carrier frequencies having two or more CDMA channels for assignment to the mobile station. If one of those frequencies was used by the mobile station to request resources, it may be advantageous to select that frequency; otherwise or instead, the choice is narrowed to the carrier frequency or frequencies having the greatest number of available radio links. From that point, the choice may be further narrowed, for example, by selecting the carrier frequency having the most favorable CDMA channel loading across two or more cells. In another embodiment, such multi-carrier load balancing is the basis of carrier frequency selection.
摘要翻译：在一个实施例中，多载波CDMA网络通过最大化软越区切换条件，通过保持与移动台的频率连续性，或通过两个或多个小区中的载波频率之间的负载平衡，或通过某种组合来向移动台授予无线电链路资源它们。网络识别具有两个或更多个CDMA信道的载波频率用于分配给移动台。如果这些频率中的一个被移动台用来请求资源，则可能有利的是选择该频率; 否则或者替代地，选择被缩小到具有最大数量的可用无线电链路的载波频率或频率。从那时起，可以进一步缩小选择，例如，通过选择跨越两个或更多小区的CDMA通道负载最为有利的载波频率。在另一个实施例中，这种多载波负载平衡是载波频率选择的基础。

2. 发明授权

EP1055295B1 METHOD AND SYSTEM FOR FACILITATING TIMING OF BASE STATIONS IN AN ASYNCHRONOUS CDMA MOBILE COMMUNICATIONS SYSTEM 有权
标题翻译：方法和系统以异步CDMA新闻传播系统基站时间同步促进科学
公开(公告)号：EP1055295B1
公开(公告)日：2008-07-02
申请号：EP99906655.8
申请日：1999-02-09
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)
发明人： DAHLMAN, Erik, Bengt, Lennart , JAMAL, Karim , NYSTRÖM, Per, Johan, Anders , CEDERVALL, Mats , LUNDQVIST, Patrik, Nils
IPC分类号： H04B7/26
CPC分类号： H04B1/7083 , H04W56/002 , H04W92/10
摘要： A method and system are disclosed for facilitating the timing (e.g., the known relative timing differences) of base stations (Bss) (BS1, BS2, and BS3) in asynchronous CDMA mobile communications systems (200). A plurality of mobile stations (MSs) (MS1, MS2, and MS3) measure the relative time differences between various pairs of BSs, and these measurements are stored by the BSs. A source BS sends (106) to an MS, in a neighbor list message, estimates of the relative time difference between the source BS and each of the BSs on the neighboring cell list. Each BS on the list can maintain a relative time difference estimate table, which can be updated continuously from the reports received from MSs. Subsequently, the BSs can send entries from this table to the MS in the neighbor list message. Using this novel technique, the BSs have known relative timing differences. Consequently, when the MS initiates a cell-search for a candidate BS, the MS already has an estimate of the timing of that BS as compared to its source BS. As such, the resulting cell-search procedure has a lower level of complexity and thus can be accomplished much quicker than with prior procedures. In addition, the relative time difference estimates can be compared with corresponding time differences that are measured by a second mobile station. Based on this comparison, the propagation delays of signals between the second MS and various BSs can be calculated to determine the position of the second MS.

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