Invention Grant
- Patent Title: Hearability improvements for reference signals
-
Application No.: US14658915Application Date: 2015-03-16
-
Publication No.: US09774431B2Publication Date: 2017-09-26
- Inventor: Avneesh Agrawal , Ashwin Sampath , Ravi Palanki , Naga Bhushan , Raja Sekhar Bachu , Aamod Dinkar Khandekar
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Main IPC: H04H20/71
- IPC: H04H20/71 ; H04L5/00 ; H04W72/12 ; H04L1/18 ; H04W72/00

Abstract:
Systems and methodologies are described that facilitate providing high reuse for transmitting reference signals, such as positioning reference signals (PRS) and cell-specific reference signals (CRS), to improve hearability thereof for applications such as trilateration and/or the like. In particular, PRSs can be transmitted in designated or selected positioning subframes. Resource elements within the positioning subframe can be selected for transmitting the PRSs and can avoid conflict with designated control regions, resource elements used for transmitting cell-specific reference signals, and/or the like. Resource elements for transmitting PRSs can be selected according to a planned or pseudo-random reuse scheme. In addition, a transmit diversity scheme can be applied to the PRSs to minimize impact of introducing the PRSs to legacy devices. Moreover, potions of a subframe not designated for PRS transmission can be utilized for user plane data transmission.
Public/Granted literature
- US20150200753A1 HEARABILITY IMPROVEMENTS FOR REFERENCE SIGNALS Public/Granted day:2015-07-16
Information query