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Method, device and base station for multi-mode deep fusion

A multi-mode, base station technology, applied in the field of communication, can solve the problems of high software version maintenance cost, large development workload, complex processing, etc., and achieve the effect of simple and effective implementation and increased capacity

Active Publication Date: 2022-03-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each cell-level function maintains the original design, and an adaptation module is abstracted to adapt to the incompatibility of FDD / TDD design. In this scenario, the processing is complicated, and several additional processing modules need to be added, and the development workload is heavy. , software version maintenance costs are high, performance is poor, and efficiency is low

Method used

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  • Method, device and base station for multi-mode deep fusion
  • Method, device and base station for multi-mode deep fusion

Examples

Experimental program
Comparison scheme
Effect test

application example 1

[0053] This embodiment provides an implementation manner in which deep fusion of FDD and TDD is implemented, and the base station realizes deep fusion, including:

[0054] Step 1: According to the network deployment situation, the base station data configuration background allocates an IP address, base station ID and other base station level data for the base station, configures S1 coupling and X2 coupling, configures TDD or FDD cells and the specific parameters associated with the cell mode .

[0055] Step 2: After receiving the configuration data from the base station, the control signaling board processes the interaction between the S1 port / X2 port at the base station level and UE level. Handle the signaling process of the RRC layer, including:

[0056] 1) For the base station level signaling of the S1 interface, the MME identifies the specific base station through the eNodeB ID and the PLMN ID. Signaling at the base station level includes messages such as S1 SETUP REQUES...

application example 2

[0064] This embodiment provides the behavior of UE access in the scenario of deep fusion of FDD and TDD:

[0065] Step 1: For a single-mode UE, the UE receives the broadcast of the corresponding cell according to the registered operator information. For a dual-mode UE, the UE selects a cell with a good signal to initiate a random access process according to the strength of the received signal.

[0066] Step 2: There are TDD cell A and FDD cell B in the station. When the UE accesses TDD cell A, the control signaling board receives the RRCConnectionRequest sent by the UE, the base station assigns a unique UE ID of 0 to the UE, and the base station maintains the data correspondence between the unique ID 0 of the UE and TDD cell A and the cell mode ; When the UE accesses the FDD cell B, the control signaling board receives the RRCConnectionRequest sent by the UE, the base station allocates a UE unique identifier as 1 for the UE, and the base station maintains the UE's unique ident...

application example 3

[0069] This embodiment provides the behavior of handover between cells of different modes in the UE station in the scenario of deep fusion of FDD and TDD:

[0070] Step 1: The base station delivers TDD and FDD cell broadcasts. When a dual-mode UE initially accesses an FDD cell, the base station delivers a measurement configuration to the UE, carrying TDD neighbor cell information. After the UE measures that the signal of the neighboring cell is higher than the signal of the own cell, and the measurement threshold is met, the UE sends a measurement report to the base station.

[0071] Step 2: The RRC layer receives the measurement report sent by the terminal UE, and after receiving and configuring the measurement parameters, selects the target TDD cell that the UE needs to switch to, and the base station sends an RRC reconfiguration message to the UE. The reconfiguration message carries TDD-specific parameters: tdd-AckNackFeedbackMode, srs-MaxUpPts in SoundingRS-UL-ConfigCommo...

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Abstract

The invention discloses a method, device and base station for multi-mode deep fusion. The base station is configured not to have a mode attribute, and each cell in the base station is configured to have a mode attribute; the base station includes: a control signaling board, It is used to carry the network-wide unique identifier of the base station when the MME or adjacent base stations perform base station-level signaling interaction; when the UE accesses any cell, assign the UE unique identifier to the UE, and store the UE unique identifier information and the current serving cell of the UE And the mapping relationship of the mode to which the cell belongs; when interacting with the MME or the adjacent base station for UE-level signaling, carry the unique identifier of the UE; and the unique identifier of the UE, query the mapping relationship, determine the mode of the current serving cell of the UE, and according to The determined mode and the cell configuration data of the serving cell configure the baseband resource board, and the baseband resource board configures baseband resources for the UE. The present invention only needs to modify the relevant modules of the control signaling board for adaptation, and the implementation mode is simple and effective.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device and base station for multi-mode deep fusion. Background technique [0002] TDD (Time Division Duplexing, time division duplexing) and FDD (Frequency Division Duplexing, frequency division duplexing) are two technical modes under the LTE standard, TDD is time division duplexing, FDD is frequency division duplexing. These two technical modes differ in the use of channels when transmitting data. FDD uses uplink and downlink frequencies for transmission. When FDD supports symmetric services, it can make full use of uplink and downlink spectrum. rate will be greatly reduced. TDD uses a frequency, and the uplink and downlink transmission time can be set, but in order to resist interference, there may be a waste of resources. [0003] The combination of FDD and TDD can complement each other's advantages and disadvantages, and aggregate spectrum in the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L41/08H04W72/04
CPCH04L41/08H04W72/20H04W72/04
Inventor 张海霞
Owner ZTE CORP