Mixed duplex realization method based on separated service and control as well as data transmission method

A technology of business data and control data, applied in the field of wireless communication, can solve problems such as high complexity, increased difficulty in smart antenna design, poor system compatibility, etc., and achieve the effect of low feedback delay

Active Publication Date: 2009-09-09
ZTE CORP
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of the TDD method are: (1) when the coverage area is too large, the spectrum utilization efficiency is lower than that of the FDD method; (2) the support for high-speed mobility is not as good as that of the FDD method
The main disadvantages of FDD are: (1) paired spectrum is required, which brings difficulties in spectrum planning; (2) there are difficulties in the use of channel reciprocity characteristics, which makes the design of smart antennas more difficult; (3) uplink and downlink spectrum It is not flexible enough to support asymmetric services
[0013] The inventors of the present application discovered that the above-mentioned related technical solutions have at least the following problems: the number or type of spectrum used by the duplex mode is limited to two, and the application of the duplex mode is positioned to be used within a system , Designing a hybrid duplex mode under this limitation limits the degree of freedom of duplex design, resulting in various hybrid duplex modes designed under this limitation, or the limitation of the TDD frame structure on the feedback delay It still exists, or the limitations of FDD in the ability to support asymmetric services still exist, or the compatibility with existing systems is poor and the complexity is high

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
  • Mixed duplex realization method based on separated service and control as well as data transmission method
  • Mixed duplex realization method based on separated service and control as well as data transmission method
  • Mixed duplex realization method based on separated service and control as well as data transmission method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] According to an embodiment of the present invention, a method for implementing hybrid duplex in which service and control are separated is provided.

[0059] figure 2 A flowchart of the method is shown. Such as figure 2 As shown, the hybrid duplex implementation method for separation of business and control according to the embodiment of the present invention includes the following processing:

[0060] Step S202, using an unpaired spectrum (for example, spectrum B) supporting uplink and downlink transmission to bear uplink / downlink service data in a time division duplex manner;

[0061] Step S204, using the paired frequency spectrum to carry the control data required for transmitting the uplink / downlink service data, wherein the paired frequency spectrum includes a frequency spectrum for uplink transmission (for example, spectrum U) and a frequency spectrum for downlink transmission (spectrum D ). In order to perform this process, it is necessary to configure an u...

Embodiment 2

[0067] According to an embodiment of the present invention, a data transmission method is provided, and the method is based on a hybrid duplex mode in which service and control are separated.

[0068] Figure 4 shows the processing flow of the method, such as Figure 4 As shown, the data transmission method according to the embodiment of the present invention includes the following processing:

[0069] In step S402, the terminal (which may be a mobile terminal, or a fixed or mobile wireless digital repeater) uses a paired spectrum to exchange control information with the network, wherein the paired spectrum includes a spectrum used for downlink transmission and a Spectrum for uplink transmission;

[0070] Step S402, the network issues the resource license data on the unpaired spectrum (spectrum B) through the spectrum used for downlink transmission; wherein, the resource license data includes resource size information, resource location information (including time slot locat...

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

The invention discloses a mixed duplex realization method and a mixed duplex realization system based on separated service and control. The method comprises the following steps: bearing uplink / downlink service data by using unpaired spectrums for supporting uplink and downlink transmission in a time division duplex mode; and bearing control data required by transmitting the uplink and downlink service data by using paired spectrums, wherein the paired spectrums comprise a spectrum used for uplink transmission and a spectrum used for downlink transmission. The invention also discloses a data transmission method. By the invention, the channel reciprocity of TDD of the service data and the flexibility of uplink / downlink service are maintained, the low feedback time delay of FDD of the transmission of the control data is realized, and the TDD system and the FDD system realize further synergism.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a hybrid duplex realization method and system in which business and control are separated, and a data transmission method based on the hybrid duplex mode in which business and control are separated. Background technique [0002] The duplex mode is one of the characteristics that distinguish the traditional wireless system, and it is also a major factor that determines the basic capabilities of the wireless system. Many performances of the system are closely related to the duplex mode adopted, for example, (1) the flexibility of the system to use spectrum; (2) The complexity of terminals and base stations; (3) The ability to use channel information; (4) Multi-network coordination capabilities; (5) Inter-network intercommunication capabilities; (6) The ability to support terminal movement speeds, etc. [0003] The basic duplex mode that existing communication system adopts mai...

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 Applications(China)
IPC IPC(8): H04W4/12H04B7/26
Inventor 刁心玺
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap