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Method, system and equipment for working on time division duplex (TDD) cell

A technology of cell and equipment, applied in the direction of transmission system, duplex signal operation, radio transmission system, etc.

Active Publication Date: 2011-04-20
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, there is no solution for UEs working on asymmetric TDD cells

Method used

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  • Method, system and equipment for working on time division duplex (TDD) cell
  • Method, system and equipment for working on time division duplex (TDD) cell
  • Method, system and equipment for working on time division duplex (TDD) cell

Examples

Experimental program
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Effect test

Embodiment 1

[0124] Embodiment 1: A high-version UE supports an asymmetric TDD cell.

[0125] The eNB broadcasts the system information of the asymmetric TDD cell on D4, where SIB2 includes uplink frequency and bandwidth information. The UE reads the system information of the cell on D4 to obtain the uplink frequency point and bandwidth parameters, and the UE judges that the cell is an asymmetrical TDD cell. At this point, the UE checks its own capabilities to determine whether it supports this type of TDD cell. If the UE supports this type of TDD cell, the UE applies the uplink frequency and bandwidth parameters in SIB2. After the UE reads other necessary system information, it can work normally on the cell.

Embodiment 2

[0126] Embodiment 2: A low-version UE supports an asymmetric TDD cell.

[0127] The eNB broadcasts the system information of the asymmetric TDD cell on D4, where SIB2 includes uplink frequency and bandwidth information. The UE reads the system information of the cell on D4, and obtains the uplink frequency point and bandwidth parameters. At this time, the UE does not perform the exception handling operations specified in the current protocol, that is, it does not default that the uplink frequency and bandwidth of the TDD cell are the same as the downlink frequency and bandwidth, but judges that the cell is an asymmetric TDD cell, and then checks the UE capabilities to determine whether it supports this type of TDD cell. If the UE supports this type of TDD cell, the UE applies the uplink frequency and bandwidth parameters in SIB2. After the UE reads other necessary system information, it can work normally on the cell.

Embodiment 3

[0128] Embodiment 3: Scenario where UE capability does not support asymmetric TDD cells

[0129] According to the description of Embodiment 1 and Embodiment 2, both the high-version UE and the low-version UE developed after the introduction of the asymmetric TDD cell can work on the asymmetric TDD cell through different schemes. For these UEs capable of working on some asymmetric TDD cells, there may be other asymmetric TDD cells that are beyond the capabilities of the UE, that is, due to the limited capabilities of the UE, they cannot work on some asymmetric TDD cells superior. This embodiment provides a processing method for a UE capable of working on an asymmetric TDD cell in this scenario.

[0130] The eNB broadcasts the system information of the asymmetric TDD cell on D4, which includes uplink frequency and bandwidth information. Therefore, both the high-version UE and the low-version UE supporting the asymmetric TDD cell will judge that the cell is an asymmetric TDD cel...

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Abstract

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method, a system and equipment for working on a time division duplex (TDD) cell. The method, the system and the equipment enable user equipment (UE) to work on an asymmetric TDD cell. The method provided by the embodiment of the invention comprises the following steps: network side equipment determines uplink parameter information of the asymmetric TDD cell; and the network side equipment sets the uplink parameter information into system information, and transmits the system information to a terminal for instructing the terminal to work on the corresponding asymmetric TDD cell according to the system information. In the embodiment of the invention, because the uplink parameter information is added to the system information, the terminal can work on the asymmetric TDD cell according to the system information, so that the efficiency of the terminal is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, system and equipment for working in a TDD (Time division duplexing, time division duplex) cell. Background technique [0002] Currently, a carrier aggregation technology is adopted in an LTE-A (LTE-Advanced, Long Term Evolution Enhanced) system. Carrier aggregation technology refers to multiple component carriers in the uplink and downlink of a cell, instead of only one set of carriers (ie, one uplink carrier and one downlink carrier) in LTE (Long Term Evolution, long-term evolution) and previous wireless communication systems. mode. For example, some spectrum allocated to the existing system is aggregated to form a large bandwidth for the LTE-A system. At this time, the uplink carrier and downlink carrier in the system can be configured asymmetrically, that is, the user may occupy N downlink carriers for downlink transmission. , occupying M upl...

Claims

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Application Information

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IPC IPC(8): H04W72/12
CPCH04W48/08H04L5/14H04B7/2656H04W72/042H04W48/12
Inventor 陆扬许芳丽梁靖
Owner DATANG MOBILE COMM EQUIP CO LTD
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