-
公开(公告)号：EP2574122B1
公开(公告)日：2018-01-03
申请号：EP12196319.3
申请日：2010-06-11
发明人： Krishnamurthy, Sandeep , Love, Robert T , Nimbalker, Ajit , Stewart, Kenneth A , Zhuang, Xiangyang
CPC分类号： H04W24/10 , G01S1/30 , G01S5/0236 , G01S5/10 , H04L5/005 , H04L5/0094 , H04L27/2656 , H04L43/0852 , H04W64/00 , H04W72/044 , Y02D30/30
摘要： A wireless terminal receives signaling information, pertaining to a reference signal transmission in at least one specifically designated sub frame, the signaling information including a list, the list including base station identities. The terminal determines, from at least one of the base station identities in the list, the time-frequency resources associated with a reference signal transmission intended for observed time difference of arrival (OTDOA) measurements from a transmitting base station associated with said one base station identity. The time of arrival of a transmission from the transmitting base station, relative to reference timing, is measured. The wireless terminal can receive a command from a serving cell to start performing inter-frequency OTDOA measurement on a frequency layer containing reference signals, the frequency layer distinct from the serving frequency layer, the serving frequency layer not containing positioning reference signals. The wireless terminal can perform OTDOA measurements subsequent to the reception of the command on a carrier frequency different from the serving cell carrier frequency. A base station transmitter can jointly schedule a reference signal transmission from a plurality of base station transmitters for the purpose of OTD estimation enhancement, and transmit identical reference signals from the plurality of base station transmitters, the reference signals being identical both in the signal sequence and time-frequency resources used for transmission.
-
2.发明授权
公开(公告)号：EP2897306B1
公开(公告)日：2016-10-12
申请号：EP15154362.6
申请日：2007-01-23
发明人： Zhuang, Xiangyang , Mondal, Bishwarup , Baum, Kevin, L. , Thomas, Timothy A. , Vook, Frederick, W.
CPC分类号： H04B7/0617 , H04B7/0452 , H04B7/0634 , H04B7/0639 , Y02D70/444
摘要： A method and apparatus for performing spatial-division multiple access within a communication system is provided herein. During operation, nodes will return null subspace information along with their channel subspace information. The null subspace is similar to the channel subspace except that the null subspace information directs a base station to the matrix in a predefined codebook that results in minimum power being received at the node. The null subspace for each node is taken into consideration when communicating with a particular node.
-
公开(公告)号：EP2574123B1
公开(公告)日：2020-04-15
申请号：EP12196328.4
申请日：2010-06-11
-
-
搜索结果
3 条记录 (耗时 0.009 秒)
