Unlock instant, AI-driven research and patent intelligence for your innovation.

A scheduling method and system for coordinated transmission

A technology of coordinated transmission and scheduling method, applied in transmission systems, digital transmission systems, diversity/multi-antenna systems, etc., can solve the problems of system performance degradation, lack of end users, user interference, etc., to improve throughput and reduce co-frequency Interference, the effect of increasing the average throughput

Active Publication Date: 2015-10-21
新沂市数聚科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the scheduling process between the cells of the wireless access network is independent of each other, and there is no scheduling information interaction of the end users, so the users at the edge of the cell are easily interfered by the same-frequency signals of adjacent cells, resulting in system performance degradation

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A scheduling method and system for coordinated transmission
  • A scheduling method and system for coordinated transmission
  • A scheduling method and system for coordinated transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 2 As shown, this embodiment is a schematic diagram of intra-eNodeB CoMP transmission in the LTE system. Both Cell1 and Cell2 belong to eNodeB1, and the bandwidth of each cell is 5M, corresponding to 25 resource blocks (Resources Block is referred to as RB, which is the resource allocation unit in the LTE system. ).

[0049] First, Cell1 sends a signal strength measurement request to all users (including the list of cells to be measured and the measured value, the measured value is RSRP / RSRQ or any quantity that can represent the strength of the cell’s transmitted signal), and Cell1 receives the measurement results reported by each user Finally, compare with the preset threshold 1 to determine that UE1 is the edge user of Cell1, and compare the measurement results of UE1 with the preset threshold 2 to determine the set of cooperative cells of UE1; Cell2 performs the same processing as Cell1 and then determines that UE2 is the edge user of Cell2 user, and...

Embodiment 2

[0065] Such as image 3 As shown, it is a schematic diagram of inter-eNodeB CoMP transmission in an LTE system according to an embodiment of the present invention. Cell3 and Cell4 belong to eNodeB2 and eNodeB3 respectively, and the bandwidth of each cell is 5M, corresponding to 25 RBs.

[0066] First, Cell3 sends a signal strength measurement request to all users (including the list of cells to be measured and the measurement value, the measurement value is RSRP / RSRQ or any quantity that can represent the strength of the cell’s transmitted signal), and Cell3 receives the measurement results reported by each user Finally, compare with the preset threshold 1 to determine that UE3 is the edge user of Cell3, and compare the measurement results of UE3 with the preset threshold 2 to determine the set of cooperative cells of UE3; Cell4 performs the same processing as Cell3 and determines that UE4 is the edge user of Cell4 user, and obtain the coordinated cell set of UE4;

[0067] Th...

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

No PUM Login to View More

Abstract

A scheduling method for coordinated transmission is provided, wherein the method includes the steps of: a serving cell divides users in said serving cell into the central users and the edge users and determines coordinated cells of the edge users; said serving cell accomplishes, together with said coordinated cells, the coordinated scheduling for the edge users in said serving cell and accomplishes the scheduling for the central users in said serving cell with the remainder resources of said serving cell; a scheduling system for coordinated transmission is also provided. According to the technical scheme of the present invention, User Equipments (UEs) applying Coordinated Multi-Point transmission (CoMP) and common UEs are uniformly processed, thus the multi-cell coordinated transmission of the edge UEs can be achieved easily with the present Long Term Evolution (LTE) system.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a scheduling method and system for coordinated transmission of multiple cells in a Long Term Evolution Advanced (LTE-A for short) system. Background technique [0002] The Radiocommunication Sector of International Telecommunications Union (ITU-R) has put forward extremely high data rate and spectrum efficiency performance requirements for the next generation mobile communication system (International Mobile Telecommunications Advanced, IMT-Advanced). . In terms of peak rate: IMT-Advanced requires 1Gbit / s or more in low-speed mobile and hotspot coverage scenarios; 100Mbit / s in high-speed mobile and wide-area coverage scenarios. In terms of peak spectrum efficiency: IMT-Advanced requires 15bps / Hz for downlink and 6.75bps / Hz for uplink. [0003] In order to meet and exceed the requirements of IMT-Advanced within the time plan of the ITU, while maintaining good backwa...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04L1/00H04W24/08H04W24/10H04W72/04
CPCH04W72/1205H04B7/024H04W72/12
Inventor 李翱翔王文焕
Owner 新沂市数聚科技有限公司