Method for sounding reference signal resource allocation in a mobile communication system
A technology for detecting reference signals and mobile communication systems, which is applied in the field of detection technology in mobile communication systems, can solve problems such as interference and detection performance degradation, and achieve the effect of ensuring frequency domain accuracy
Active Publication Date: 2012-10-17
ALCATEL LUCENT SHANGHAI BELL CO LTD
View PDF7 Cites 11 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The coordinated multi-point technology requires multiple coordinated multi-point cells to detect the Sounding Reference Signal (SRS) from the user equipment at the same time, which will cause interference and detection performance degradation based on the existing SRS scheme
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] Coordinated multi-point transmission is an effective way to improve the capacity of the cell boundary and the average throughput of the cell. The core idea is that when a user equipment is located in a cell boundary area, it can simultaneously receive signals from multiple cells, and its own transmissions can also be received by multiple cells simultaneously. In the downlink, if the transmission signals from multiple cells are coordinated to avoid mutual interference, the downlink performance can be greatly improved. In the uplink, signals can be jointly received by multiple cells at the same time and the signals can be combined. At the same time, multiple cells can also suppress inter-cell interference through coordinated scheduling, thereby achieving the effect of improving the signal-to-noise ratio of received signals.
[0018] figure 1 An exemplary cell distribution map is shown. The figure shows three adjacent stations 1, 2, and 3, and the stations are usually al...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a method for sounding reference signal resource allocation in a mobile communication system. In an embodiment, the method comprises the step of allocating resource for a first sounding reference signal and a second sounding reference signal of a piece of user equipment, wherein frequency density of the resource allocated to the first sounding reference signal is higher than that of the resource allocated to the second sounding reference signal. By adopting the technical scheme provided by the invention, resources with different frequency densities can be allocated based on different purposes of sounding reference signals. By doing so, frequency domain precision required for channel estimation can be ensured, and sounding reference signal resources can be used more effectively and fully to support services for more users.
Description
technical field [0001] The present invention relates to mobile communication technology, more specifically, to sounding technology in mobile communication system. Background technique [0002] In the Long Term Evolution (LTE) project, Coordinated Multipoint (CoMP) technology has been proposed as a candidate technology for improving user experience at the cell edge. The main challenges of CoMP include such as backhaul latency (backhaul latency), backhaul capacity (backhaul capacity), downlink channel state information (CSI) feedback, and so on. Most of the challenges come from coherently combining the transmission signals of multiple cells at the user equipment (User Equipment, UE) side. [0003] The CoMP technology requires multiple CoMP cells to simultaneously detect Sounding Reference Signals (Sounding Reference Signal, SRS) from user equipment, which will bring interference and detection performance degradation based on the existing SRS scheme. Therefore, a new SRS sche...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04W72/12H04W72/54
Inventor 张晓博
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD