CN103686972A - Femto base station capable of controlling output power and method for controlling output power thereof - Google Patents

Abstract

The invention provides a household base station capable of controlling output power and an output-power control method thereof. The household base station includes a detection module and a control module. The detection module is used for detecting UEs connected with the household base station. The control module is used for reducing the output power of uplink and downlink signals of the household base station when the UEs connected to the base station are reduced and improving the output power of the uplink and downlink signals of the household base station when the UEs connected to the household base station are increased and the control module is also used for improving the output power of the uplink and downlink signals of the household base station when UEs registered in the household base station are moved to a macro base station which is distanced from the household base station for a specific range. The household base station capable of controlling the output power is capable of increasing or reducing correspondingly the output power of the uplink and downlink signals of the household base station when the UEs connected to the household base station are changed in number and improving the output power of the uplink and downlink signals of the household base station in advance for being used by UEs which are to enter the coverage range of the household base station.

Description

Femto base station capable of controlling output power and method for controlling output power thereof

technical field

The present invention relates to the field of mobile communication, in particular to a home base station capable of controlling output power and a method for controlling the output power of the home base station.

Background technique

In the LTE (Long Term Evolution, long-term evolution) network including macrocell base stations, the deployment of home base stations (HNB, Home eNodeB) can effectively improve indoor signal coverage, improve user service quality, and increase network capacity. Femto base stations have the characteristics of simple access, plug and play, and user-configurable, and these characteristics lead to real-time changes in the network topology. There may be signal interference between base stations. When a traditional femtocell detects signal interference, it will automatically reduce the output power of its uplink and downlink signals, so as to reduce signal interference. However, this may cause the user equipment (User) currently using the femtocell to Equipment (UE for short) cannot obtain the required data transmission rate.

Contents of the invention

In view of this, it is necessary to provide a HNB capable of controlling the output power and a method for controlling the output power of the HNB, which can solve the above problems.

The present invention provides a home base station with controllable output power, which is applied to a core network. The core network is also connected to several macro base stations. Among the several macro base stations, at least one macro base station is adjacent to the home base station. The base station includes: a detection module for detecting user equipment connected to the home base station; and a control module for reducing the home base station when the detection module detects that the number of user equipment connected to the home base station decreases. The output power of the uplink and downlink signals of the home base station; when the detection module detects that the user equipment connected to the home base station increases, the output power of the uplink and downlink signals of the home base station is increased; it is also used for at least one registered in the home base station When the user equipment moves to the macro base station within a certain range from the home base station, the output power of the uplink and downlink signals of the home base station is increased to provide the data transmission rate required by the user equipment that is about to enter the coverage of the home base station.

The present invention also provides a method for controlling the output power of a home base station, which is applied to a home base station. The home base station is used in a core network, and the core network is also connected to several macro base stations. There is at least one of the several macro base stations. The macro base station is adjacent to the home base station, and the method includes: detecting user equipment connected to the home base station; when the detection module detects that the number of user equipment connected to the home base station decreases, reducing the uplink and downlink signals of the home base station the output power of the home base station; when the detection module detects that the user equipment connected to the home base station increases, the output power of the uplink and downlink signals of the home base station is increased; and when at least one user equipment registered with the home base station moves to the home base station When the home base station is within a certain range of the macro base station, the output power of the uplink and downlink signals of the home base station is increased to provide the data transmission rate required by the user equipment that is about to enter the coverage area of the home base station.

Compared with the prior art, the present invention can correspondingly increase or decrease the output power of the uplink and downlink signals of the home base station when detecting changes in the user equipment connected to the home base station, and can increase the uplink and downlink signal power of the home base station in advance. The output power of the line signal is provided for use by the user equipment that is about to enter the coverage of the home base station.

Description of drawings

FIG. 1 is a hardware architecture diagram of a HNB capable of controlling output power in a preferred embodiment of the present invention.

Fig. 2 is a hardware architecture diagram of a home base station capable of controlling output power in another embodiment of the present invention.

Fig. 3 is a flowchart of a method for controlling output power of a HNB in a preferred embodiment of the present invention.

Description of main component symbols

Femtocell with controllable output power 1 Macro base station 2 detection module 11

control module 12 storage unit 13 Judgment module 14 Core Network 100

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

FIG. 1 is a hardware architecture diagram of a home base station 1 capable of controlling output power (hereinafter referred to as home base station 1 ) in a preferred embodiment of the present invention. Wherein, the home base station 1 is applied in a core network 100, and the core network 100 is also connected to several macro base stations 2 (only two macro base stations 2 are shown in the figure), and there is at least one macro base station among the several macro base stations 2 2 is adjacent to or overlaps with the HNB 1. In this embodiment, the HNB 1 includes a detection module 11 and a control module 12 .

The detection module 11 is used for detecting user equipment connected to the HNB 1 . The control module 12 is used for reducing the output power of the uplink and downlink signals of the home base station 1 when the detection module 11 detects that the user equipment connected to the home base station 1 decreases. When the user equipment of the HNB 1 increases, the output power of the uplink and downlink signals of the HNB 1 is increased. Wherein, the HNB 1 further includes a storage unit 13 . When a user equipment establishes a connection with the home base station 1, the control module 12 adds the information of the connected user equipment to the storage unit 13, and deletes the information from the storage unit 13 when a user equipment cancels the connection with the home base station 1. Information about the unconnected user device. The detection module 11 determines the increase or decrease of the user equipment connected to the home base station 1 by detecting the increase or decrease of the user equipment information in the storage unit 13 . In this embodiment, the control module 12 is also configured to determine that the home base station 1 is in an idle state when the detection module 11 detects that the user equipment connected to the home base station 1 is reduced to zero, and then The output power of the uplink and downlink signals of the HNB 1 is reduced to zero.

The control module 12 is also configured to increase the output power of the uplink and downlink signals of the home base station 1 when at least one user equipment registered with the home base station 1 moves to the macro base station 2 within a certain range from the home base station 1, In order to provide the data transmission rate required by the user equipment that is about to enter the coverage of the home base station 1 . Wherein, when any user equipment successfully establishes a connection with the home base station 1 through a process such as password verification, the control module 12 adds the user equipment information to a registration list and stores it in the storage unit 13, and uploads the registration list to Core network 100.

Specifically, in this embodiment, the HNB 1 has location information. According to the registration list, the core network 100 determines information of all user equipments registered in the home base station 1, and determines whether at least one user equipment registered in the home base station 1 enters within a certain range from the location of the home base station 1 in the macro base station 2 . If yes, the core network 100 generates a control signal and sends the control signal to the HNB 1, and the control module 12 increases the output power of the uplink and downlink signals of the HNB 1 according to the control signal. Wherein, the core network 100 determines the macro base station 2 located within the predetermined range of the home base station 1 according to the position of the home base station 1 and the positions of all macro base stations 2 . In other implementation manners, the home base station 1 has a corresponding relationship with a nearby macro base station, and the core network 100 determines the macro base station 2 within a certain range from the home base station 1 according to the corresponding relationship.

Please refer to FIG. 2 , in another implementation manner, the HNB 1 further includes a judging module 14 . The core network 100 is used to determine the geographic locations of all user equipments registered in the HNB 1 . The judging module 14 receives the geographical locations of the user equipments, and judges according to the geographical locations whether there is at least one user equipment registered with the home base station 1 within the macro base station 2 within a certain range from the home base station 1 , if yes, the control module 12 increases the output power of the uplink and downlink signals of the home base station 1 .

Fig. 3 is a flowchart of a method for controlling output power of a home base station in a preferred embodiment of the present invention, the method includes the following steps:

Step S31: The detection module 11 judges whether the user equipment connected to the home base station has increased or decreased according to the increase or decrease of the user equipment information stored in the storage unit 13, if yes, proceed to step S32; otherwise, return to Step S31.

Step S32: the control module 12 reduces the output power of the uplink and downlink signals of the home base station 1 when the number of user equipments connected to the home base station 1 decreases, and increases the output power of the home base station 1 when the number of user equipments connected to the home base station 1 increases. 1 output power of uplink and downlink signals.

In this embodiment, when the number of user equipments connected to the HNB 1 decreases to zero, the control module 12 reduces the output power of the uplink and downlink signals of the HNB 1 to zero.

Step S33: The core network 100 determines whether at least one user equipment registered with the home base station 1 has moved to the macro base station 2 within a certain range from the home base station 1 according to the stored registration list, and if so, proceed to step S33. S24; otherwise, return to step S21.

Step S34: The control module 12 increases the output power of the uplink and downlink signals of the HNB 1 according to a control signal generated by the core network 100 .

Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Alterations and variations are within the scope of the claimed invention.

Claims (8)

1. can control a base station from home for power output, be applied in a core net, this core net also connects several macro base stations, in these several macro base stations, exists at least one macro base station adjacent with this base station from home, it is characterized in that, this base station from home comprises:

One detecting module, for detecting the subscriber equipment being connected with this base station from home; With

One control module, when the subscriber equipment that is connected to this base station from home for detecting when detecting module reduces, reduces the power output of the uplink and downlink signals of this base station from home; When detecting module detects the subscriber equipment increase that is connected to this base station from home, improve the power output of the uplink and downlink signals of this base station from home; Also when moving to this base station from home in the macro base station in the certain limit at least one subscriber equipment that is registered in this base station from home, improve the power output of the uplink and downlink signals of this base station from home, the required message transmission rate of subscriber equipment of base station from home coverage is provided to provide this to be about to.

2. the base station from home of controlling power output as claimed in claim 1, it is characterized in that, this control module detects the subscriber equipment that is connected to this base station from home while being reduced to zero at this detecting module, and the power output of the uplink and downlink signals of this base station from home is reduced to zero.

3. the base station from home of controlling power output as claimed in claim 1, is characterized in that, this control module is also for being stored to a memory cell by the current user equipment information that is connected to this base station from home; The information that this control module increases this subscriber equipment being connected when a subscriber equipment connects with this base station from home is to this memory cell, at a subscriber equipment and this base station from home, cancel while being connected the information of deleting the subscriber equipment of this cancellation connection from this memory cell; This detecting module judges the increase and decrease of the subscriber equipment that is connected to this base station from home by detecting the increase and decrease of this user equipment information in this memory cell.

4. the base station from home of controlling power output as claimed in claim 3, it is characterized in that, this base station from home also has a positional information, this core net for determine whether at least one subscriber equipment that is registered in this base station from home enter with the position of this base station from home macro base station in certain limit in, and when subscriber equipment enters, produce a control signal defining; This control module improves the power output of the uplink and downlink signals of this base station from home according to this control signal.

5. the base station from home of controlling power output as claimed in claim 4, it is characterized in that, this memory cell is also stored a register list, after any subscriber equipment connects successfully by password authentification and base station from home, this control module is added into this register list by this user equipment information, and this register list is uploaded to this core net; This core net is determined all information that is registered in the subscriber equipment of this base station from home according to this register list.

6. the base station from home of controlling power output as claimed in claim 4, it is characterized in that, this base station from home and near macro base station are corresponding relation, make this core net determine position with this base station from home macro base station in certain limit according to this corresponding relation.

7. the base station from home of controlling power output as claimed in claim 1, is characterized in that, this base station from home also comprises a judge module; This core net is for determining the geographical position of all subscriber equipmenies that are registered in this base station from home; This judge module judges whether that according to those geographical position at least one subscriber equipment that is registered in this base station from home is in the position with this base station from home in the macro base station in certain limit; This control module for improving the power output of the uplink and downlink signals of this base station from home when this judge module judgement has subscriber equipment to enter.

8. a control method for base station from home power output, is applied in a base station from home, and this base station from home is applied in a core net, this core net also connects several macro base stations, in these several macro base stations, exist at least one macro base station adjacent with this base station from home, it is characterized in that, the method comprises:

The subscriber equipment that detecting is connected with this base station from home;

When detecting module detects the subscriber equipment minimizing that is connected to this base station from home, reduce the power output of the uplink and downlink signals of this base station from home; When detecting module detects the subscriber equipment increase that is connected to this base station from home, improve the power output of the uplink and downlink signals of this base station from home; With

When at least one subscriber equipment that is registered in this base station from home moves to this base station from home in the macro base station in the certain limit, improve the power output of the uplink and downlink signals of this base station from home, the required message transmission rate of subscriber equipment of base station from home coverage is provided to provide this to be about to.

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