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Mode converting method, device and system in FDD (Frequency Division Duplexing) scene

A mode conversion, H-FDD technology, applied in the direction of electrical components, wireless communication, power management, etc., can solve the problem that MS cannot realize mode conversion, etc., and achieve the effect of facilitating flexible allocation, avoiding excessive power consumption, and facilitating resources

Inactive Publication Date: 2010-06-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a mode conversion method, device and system in an FDD scenario, which can solve the problem that MS cannot implement mode conversion

Method used

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  • Mode converting method, device and system in FDD (Frequency Division Duplexing) scene
  • Mode converting method, device and system in FDD (Frequency Division Duplexing) scene
  • Mode converting method, device and system in FDD (Frequency Division Duplexing) scene

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Embodiment 1

[0056] This embodiment describes the mode conversion actively initiated by the Access Station in various situations.

[0057] 1. Mode conversion during normal communication

[0058] like image 3 As shown, the mode conversion initiated by the Access Station in this embodiment includes:

[0059] S301. The Access Station sends a mode switching request message to the MS.

[0060] During normal communication between the MS and the Access Station, the Access Station finds that the MS needs to perform a mode switch, from F-FDD mode to H-FDD mode or from H-FDD mode to F-FDD mode, and will send a mode switch message to the MS. The request message FDD-HFDD-REQ requires the MS to perform corresponding mode conversion. The request message FDD-HFDD-REQ includes relevant parameters for requesting MS to switch from F-FDD mode to H-FDD mode or from H-FDD mode to F-FDD mode.

[0061] There may be various reasons that cause the MS to perform mode conversion, for example, the amount of data...

Embodiment 2

[0096] This embodiment describes the mode switching initiated by the MS under various circumstances.

[0097] 1. Mode conversion during normal communication

[0098] During the normal communication between the MS and the Access Station, if the MS finds that it is necessary to perform mode conversion, it initiates a mode conversion request. Specific operations such as Figure 4 shown.

[0099] S401. The MS sends a mode switching request to the Access Station.

[0100] MS finds that the current amount of data interaction is small, and it is necessary to switch from F-FDD mode to H-FDD mode, and then it will send a FDD-HFDD-REQ request message to Access Station, requesting to switch to H-FDD model. The request message FDD-HFDD-REQ includes relevant parameters for requesting the MS to switch from the F-FDD mode to the H-FDD mode.

[0101] The present invention is not limited thereto, and it may be caused by other reasons that the MS needs to switch modes, for example, the loa...

Embodiment 3

[0134] In this embodiment, under IEEE 16e, the mode switching is initiated by the BS actively.

[0135] 1. Mode conversion during normal communication

[0136] This embodiment first describes the mode switching performed during normal communication between the MS and the BS.

[0137] like Figure 5 As shown, the mode conversion method in the FDD scenario of this embodiment in IEEE 16e includes:

[0138] S501. The BS (Base Station, base station) finds that the MS needs to switch to the H-FDD mode during communication in the F-FDD mode, and then sends a mode switching request message to the MS.

[0139] During the communication process, the BS finds that the amount of data exchanged through the MS is very small, so it is considered that the MS needs to switch from F-FDD to H-FDD, so as to reduce power consumption. BS sends FDD-HFDD-REQ to MS, requesting MS to do mode switching. The request message FDD-HFDD-REQ includes relevant parameters for requesting the MS to switch from t...

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Abstract

The invention discloses mode converting method, device and system in a FDD (Frequency Division Duplex) scene, which relates to the field of wireless communication and can solve the problem that a MS can not realize mode conversion. The method comprises the following steps of: receiving a request message of mode conversion, which is transmitted by an Access Station, wherein the request message requests the MS to convert into an H-FDD (Half-Frequency Division Duplex) mode from an F-FDD (Full-Frequency Division Duplex) mode or convert into the F-FDD mode from the H-FDD mode; and converting to the appointed mode in the request message. The mode converting method in the FDD scene of the other embodiment comprises the following steps of: transmitting the request message of mode conversion to the Access Station, wherein the request message requests the MS to convert into the H-FDD mode from the F-FDD mode or convert into the F-FDD mode from the H-FDD mode; receiving a feedback message that the Access Station agrees to convert and then converting to the appointed mode in the request message. The invention is suitable for the mode conversion in the FDD scene.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a mode switching method, device and system in an FDD scenario. Background technique [0002] At present, the duplex mode of the communication system is divided into TDD (Time Division Duplex, time division duplex) and FDD (Frequency Division Duplex, frequency division duplex), FDD is divided into F-FDD (full duplex mode) and H-FDD ( half-duplex mode). [0003] The FDD mode uses two symmetrical frequency channels to transmit and receive signals respectively. There is a certain frequency band guard interval between the transmitting and receiving channels. FDD is a continuous control system. The BS (Base Station, base station) based on the OFDMA FDD system adopts the F-FDD mode; the MS (Mobile Station, mobile station) supports two modes: F-FDD and H-FDD. For F-FDD MS, different frequency bandwidths can be used to transmit and receive data at the same time; MS transmit...

Claims

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Application Information

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IPC IPC(8): H04W92/10H04W52/02
CPCH04W36/06
Inventor 沈海华梁文亮张锦芳卢磊
Owner HUAWEI TECH CO LTD
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