A data transmission method, device and system for coordinated multi-point transmission center scheduling

A data transmission system and multi-point transmission technology, which is applied in the field of data transmission method, device and system for coordinated multi-point transmission center scheduling, and can solve problems such as CoMP center scheduling influence and no solution provided

Active Publication Date: 2018-03-27
DATANG MOBILE COMM EQUIP CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of non-ideal backhaul, the central cooperative scheduling scheme mainly has the following problems: the impact of backhaul delay on CoMP central scheduling
[0017] For the central cooperative scheduling scenario, it is necessary to consider the data transmission architecture of the scenario, and consider the scheduling and transmission issues for the transmission architecture, so as to help the network side implement timely and accurate scheduling decisions and data transmission processing for CoMP users, and reduce the backhaul delay for CoMP The impact of central scheduling, but no related solutions have been provided yet

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 data transmission method, device and system for coordinated multi-point transmission center scheduling
  • A data transmission method, device and system for coordinated multi-point transmission center scheduling
  • A data transmission method, device and system for coordinated multi-point transmission center scheduling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0276] In this embodiment, during the initial RRC connection establishment process of the CoMP UE, the user plane downlink data path of the serving base station of the SGW-CCN-CoMP UE-CoMP UE is established for the CoMP UE, including:

[0277]The serving base station of the CoMP UE receives the attach request message of the CoMP UE;

[0278] When the serving base station of the CoMP UE determines to establish the user plane downlink data path of the SGW-CCN-CoMP UE serving base station-CoMP UE for the CoMP UE, it instructs the core network to establish the S1-U connection of the serving base station of the SGW-CCN-CoMP UE.

[0279] The specific method is as follows:

[0280] The serving base station of the CoMP UE sends the attachment request message and the relevant information of the CoMP UE to the CCN through the interface with the CCN according to the stored mapping relationship between the cooperating set including the serving base station of the CoMP UE and the CCN;

[...

Embodiment 2

[0298] In this embodiment, during the initial RRC connection establishment process of the CoMP UE, the eNB selects the CCN as the transmission transfer point between the CoMP UE and the core network according to the capabilities of the CoMP UE, and establishes a SGW-CCN-CoMP UE serving base station-CoMP UE user for the CoMP UE downlink data path.

[0299] The specific method is as follows:

[0300] The serving base station of the CoMP UE receives the attach request message of the CoMP UE;

[0301] When the serving base station of the CoMP UE determines to establish the user plane downlink data path of the SGW-CCN-CoMP UE serving base station-CoMP UE for the CoMP UE, it instructs the core network to establish the S1-U connection of the serving base station of the SGW-CCN-CoMP UE, specifically including :

[0302] The serving base station of the CoMP UE sends a message containing the EUTRAN cell global identity ECGI corresponding to the CCN to the MME, and notifies the MME to ...

Embodiment 3

[0319] In this embodiment, during the initial RRC connection establishment process of the CoMP UE, the MME selects the CCN as the transmission transfer point between the CoMP UE and the core network according to the capabilities of the CoMP UE, and establishes a SGW-CCN-CoMP UE serving base station-CoMP UE user for the CoMP UE downlink data path.

[0320] The specific method is as follows:

[0321] The serving base station of the CoMP UE receives the attach request message of the CoMP UE;

[0322] The serving base station of the CoMP UE sends the received attach request message and related information of the CoMP UE to the mobility management entity MME;

[0323] When the MME determines to establish the SGW-CCN-CoMP UE serving base station-CoMP UE user plane downlink data path for the CoMP UE, according to the stored mapping relationship between the coordination set including the CoMP UE serving base station and the CCN, the EUTRAN cell corresponding to the CCN The global id...

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 present invention provides a data transmission method, device and system for coordinated multi-point transmission center scheduling, wherein, the user plane data to be transmitted of CoMP UEs is obtained from the SGW, and the CSI of all UEs and the pending data of non-CoMP UEs are obtained from all coordinated transmission points. Transmit user plane data, communicate with the coordinated transmission point scheduled by the CCN, and execute the scheduled transmission of the user plane data of the CoMP UE; the coordinated transmission point in the same cooperative set as the CCN reports the CSI and CSI of all UEs under the coordinated transmission point to the CCN The amount of user plane data to be transmitted by the non-CoMP UE communicates with the CCN, uses CoMP resources to perform scheduled transmission of user plane data for CoMP UEs, and utilizes non-CoMP resources to perform scheduled transmission of user plane data for non-CoMP UEs. The present invention can solve the problem of user data transmission processing when the CCN is used as the scheduling control node in the non-ideal backhaul scenario.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, device and system for data transmission scheduled by a coordinated multi-point transmission center. Background technique [0002] CoMP (Coordinated Multiple Points Transmission / Reception, coordinated multi-point transmission) refers to multiple geographically separated TPs (transmission points, transmission points) that cooperate to participate in data transmission for a terminal (PDSCH (Physical Downlink Shared Channel, physical downlink link shared channel) or jointly receive data sent by a terminal (PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) transmission). [0003] Generally speaking, multiple transmission points may be base stations in different cells, or multiple RRHs (remote radio head, remote radio frequency) in the same control cell. Coordinated scheduling, precoding, and joint transmission between multiple tra...

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): H04W72/12H04L1/16
CPCH04W72/12
Inventor 付喆胡海静
Owner DATANG MOBILE COMM EQUIP CO LTD
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