公开(公告)号：US20140378069A1

公开(公告)日：2014-12-25

申请号：US14100875

申请日：2013-12-09

Applicant: QUALCOMM Incorporated

Inventor： Wei Zhang ,  Guang Xie ,  Nate Chizgi ,  Prashant Udupa Sripathi ,  Todd Nicholas Tsakiris

IPC: H04B17/00

CPC classification number: H04B17/18 ,  H04B7/0634 ,  H04B17/336

Abstract: UEs are adapted to facilitate calculation of signal-to-interference ratio (SIR) estimates in closed-loop transmission diversity (CLTD) communications before downlink and uplink synchronization is achieved. A UE may receive a transmission sent using transmission diversity. According to one example, the UE may calculate a plurality of signal-to-interference ratio (SIR) estimates for the received transmission, where each signal-to-interference ratio estimate is calculated using a different weight factor. The UE may further select one of the calculated signal-to-interference ratio (SIR) estimates to be employed for the received transmission. According to another example, the UE may calculate a signal-to-interference ratio (SIR) estimate for the received transmission without employing any weight factor. Other aspects, embodiments, and features are also included.

Abstract translation: 在实现下行链路和上行链路同步之前，UE适于在闭环传输分集（CLTD）通信中有助于计算信号干扰比（SIR）估计。 UE可以接收使用传输分集发送的传输。 根据一个示例，UE可以计算接收的传输的多个信号干扰比（SIR）估计，其中使用不同的权重因子来计算每个信号干扰比估计。 UE可以进一步选择要用于所接收的传输的所计算的信号干扰比（SIR）估计之一。 根据另一示例，UE可以在不使用任何权重因子的情况下计算所接收的传输的信号干扰比（SIR）估计。 还包括其他方面，实施例和特征。

公开(公告)号：US09531483B2

公开(公告)日：2016-12-27

申请号：US14100875

申请日：2013-12-09

Applicant: QUALCOMM Incorporated

Inventor： Wei Zhang ,  Guang Xie ,  Nate Chizgi ,  Prashant Udupa Sripathi ,  Todd Nicholas Tsakiris

IPC: H04B17/00 ,  H04B17/309 ,  H04B7/02 ,  H04B7/06 ,  H04B17/18 ,  H04B17/336

CPC classification number: H04B17/18 ,  H04B7/0634 ,  H04B17/336

Abstract: UEs are adapted to facilitate calculation of signal-to-interference ratio (SIR) estimates in closed-loop transmission diversity (CLTD) communications before downlink and uplink synchronization is achieved. A UE may receive a transmission sent using transmission diversity. According to one example, the UE may calculate a plurality of signal-to-interference ratio (SIR) estimates for the received transmission, where each signal-to-interference ratio estimate is calculated using a different weight factor. The UE may further select one of the calculated signal-to-interference ratio (SIR) estimates to be employed for the received transmission. According to another example, the UE may calculate a signal-to-interference ratio (SIR) estimate for the received transmission without employing any weight factor. Other aspects, embodiments, and features are also included.

Abstract translation: 在实现下行链路和上行链路同步之前，UE适于在闭环传输分集（CLTD）通信中有助于计算信号干扰比（SIR）估计。 UE可以接收使用传输分集发送的传输。 根据一个示例，UE可以计算接收的传输的多个信号干扰比（SIR）估计，其中使用不同的权重因子来计算每个信号干扰比估计。 UE可以进一步选择要用于所接收的传输的所计算的信号干扰比（SIR）估计之一。 根据另一示例，UE可以在不使用任何权重因子的情况下计算所接收的传输的信号干扰比（SIR）估计。 还包括其他方面，实施例和特征。