Method and device for controlling carrier frequency of multi-carrier/subdistrict system

A control method and multi-carrier technology, applied in the field of communication, can solve problems affecting network quality optimization and not providing carrier frequency adjustment, etc., to achieve the effects of improving user experience, good load balance, and optimizing network quality

Active Publication Date: 2009-09-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Applying the above method can use multiple carriers / cells for data transmission, but because the environment where the user terminal is located may change at any time, and correspondingly, the quality of the carrier frequency may also vary with the However, the existing technical solutions do not provide a method for adjusting the carrier frequency according to the change of the carrier frequency quality, which affects the optimization of the network quality

Method used

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  • Method and device for controlling carrier frequency of multi-carrier/subdistrict system
  • Method and device for controlling carrier frequency of multi-carrier/subdistrict system
  • Method and device for controlling carrier frequency of multi-carrier/subdistrict system

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Embodiment 1

[0042] Such as figure 1 As shown, it is Embodiment 1 of the present invention, a schematic flow chart of a carrier frequency control method in a multi-carrier / cell system, including the following steps:

[0043] Step S101, establishing a multi-carrier / cell connection between a terminal UE and a network.

[0044] Establish multi-carrier / cell connections through two downlink carrier frequencies and one or two uplink carrier frequencies.

[0045] When the above-mentioned multi-carrier / cell connection is established through two downlink carrier frequencies and one uplink carrier frequency, an F-DPCH (Fractional Dedicated Physical Channel) is established on the downlink carrier frequency corresponding to the uplink carrier frequency for uplink Power control of the physical channel, and data transmission is performed through HS-DSCH (High-Speed ​​Down Share Channel, high-speed downlink shared channel); data transmission is performed through HS-DSCH on the remaining downlink carrier...

Embodiment 2

[0071] In order to describe the technical scheme of the present invention in detail, as figure 2 As shown, the following describes the establishment of a multi-carrier / cell connection between a terminal UE and a network through Embodiment 2 of the present invention.

[0072] A cell with multi-carrier / cell capability will broadcast its own multi-carrier / cell capability or the coordination capability between multi-carrier / cells. For example, Node B is configured with 3 frequency points, and each frequency point has 2 cells. These cells are different Cells with different carrier frequencies can cooperate. A terminal UE with multi-carrier / cell capability will report its own capability in an RRC (Radio Resource control, radio resource control) connection establishment request (in this embodiment, the RRC connection setup request message is taken as an example), and the network UTRAN receives the terminal UE In the RRC connection setup request message of the terminal UE, at the sa...

Embodiment 3

[0096] Such as image 3 As shown, through the third embodiment of the present invention, the process of judging the deactivated carrier frequency is described in detail, including the following steps:

[0097] Step S301, the terminal UE receives a carrier frequency reporting condition.

[0098] This message specifies the semaphore to be measured, when to start the measurement, when to stop the measurement, the conditions of the measurement, and the reporting time of the measurement results.

[0099] Step S302, the terminal UE reports the CQI information of the carrier frequency to the Node B.

[0100] In this step, the method for reporting the measurement value of the deactivated carrier / cell of the terminal UE to the NodeB and which own measurements the NodeB can obtain information such as the quality and power of the wireless link of a certain carrier / cell should be specified. Currently, the terminal UE reports the CQI in the HS-DPCCH (High-Speed ​​Dedicated Physical Contr...

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Abstract

The embodiment of the invention discloses a method and a device for controlling the carrier frequency of a multi-carrier/subdistrict system. The method comprises the following steps: receiving the signal path quality indicating CQI information of the carrier frequency, which is reported by a terminal; carrying out deactivation or activation judgment for the carrier frequency according to the signal path quality indicating CQI information; and ordering the terminal to deactivate or activate the carrier frequency according to the judgment result. The method flexibly activates and deactivates a certain carrier frequency according to carrier frequency quality reporting and threshold comparison in the multi-carrier/subdistrict system, thereby enhancing the system capacity and having better load balancing effect.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a carrier frequency control method and device in a multi-carrier / cell system. Background technique [0002] Existing HSPA (High-Speed ​​Packet Access) systems are all carried on a single frequency point. In order to further increase the data transmission rate of the HSPA system, reduce the delay and improve user experience, a multi- A scheme of bundling frequency points for carrying HSPA data is proposed. In this solution, two (or more) 5MHz carrier frequencies in the downlink direction will be bundled together for transmission of HSPA data. The most important of these is the case of bundling two carrier frequencies. These two carrier frequencies can be regarded as the frequency points used by two cells covering the same area, and the number of carrier frequencies used for uplink and downlink They can be the same or different, but generally the number of downlink...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/08H04W72/08H04W72/12
CPCH04W72/0453H04L5/0055
Inventor 马洁张屹张劲林陈君马小飞
Owner HUAWEI TECH CO LTD
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