Method, system and device for data transmission under MU-MIMO system
A data transmission method and number technology, applied in the field of communication, can solve problems affecting data transmission quality and transmission rate, etc.
Inactive Publication Date: 2010-10-06
CHINA ACAD OF TELECOMM TECH
View PDF0 Cites 21 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] In view of this, the embodiments of the present invention provide a data transmission method, system and device in MU-MIMO, which are used to solve the problem that the existing scrambling code allocation method affects the data transmission quality and transmission rate when the MU-MIMO system applies SDMA technology The problem
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
[0032] In the embodiment of the present invention, in order to effectively improve the data transmission quality and transmission rate when the SDMA technology is applied in the MU-MIMO system, a data transmission method in MU-MIMO is proposed, in which each code is The group allocates at least one scrambling code group, and each scrambling code group includes at least two scrambling codes, and each scrambling code group corresponds to at least one basic intermediate (midamble) code, and the process of data transmission includes: the base station for each group of users Allocating resources to the terminal, wherein the resources allocated to each group of user terminals that are successfully paired and grouped are the same, and the base station allocates the corresponding scrambling code for each user terminal in the group according to the scrambling code group corresponding to the group of user terminals , performing data transmission with each of the user terminals using the ...
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 discloses a method, a system and a device for data transmission under an MU-MIMO (multiple user-multiple input multiple output) system in order to solve the problem that the quality and rate of the data transmission can be affected by the existing manner for distributing scrambling codes under the MU-MIMO system. The method comprises the following steps: distributing at least one group of scrambling codes to each code block within the MU-MIMO system, wherein each group of scrambling codes comprises at least two scrambling codes and corresponds to at least one basic midamble code; and carrying out the data transmission by a base station according to the group of scrambling codes distributed to each user terminal and the resources adopted by each user terminal in the group of scrambling codes corresponding to the group of user terminals. According to the scheme provided by the invention, the invention can ensure that different scrambling codes can be distributed to different clients, i.e., different scrambling codes in the group of scrambling codes are used by the users using the same resources of the time-slot code channel, thus improving the quality and rate of the data transmission.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission method, system and device in a Multiple User Multiple Input Multiple Output (MU-MIMO) system. Background technique [0002] Space Division Multiple Access (SDMA) technology mainly includes: distinguishing multiple users occupying the same resource by using the spatial degrees of freedom provided by multiple antennas, so as to realize the reception and transmission of data from multiple users, among which , the resources include: time slot resources, code channel resources or frequency resources. The introduction of SDMA technology can effectively improve the average data transmission rate of the cell. The implementation of the SDMA technology is related to the adopted multi-antenna technology. [0003] In the smart antenna array, multi-beam forming technology is used for multi-user space division, and multiple main beams are aligned to users o...
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 IPC IPC(8): H04W28/16H04W72/04
Inventor 杨宇
Owner CHINA ACAD OF TELECOMM TECH