CN201004637Y - TD-SCDMA mobile communication wireless repeater - Google Patents

Abstract

Translated fromChinese

本实用新型公开了一种TD－SCDMA移动通信无线直放站，它包括接收天线、直放站主模块以及发射天线，基站发出的信号经接收天线进入主模块中的耦合器，再经频率选择器到达同步开关，分出上下行，下行信号进入低噪声放大器，放大后进入中频滤波器，再经功率放大器、同步开关、频率选择器、后通过重发天线发射到覆盖区；而上行信号经重发天线接收、频率选择器模块、同步开关、低噪放、中频滤波器、功率放大器、同步开关后，再经频率选择器，通过耦合器从前向天线发射给基站。本实用新型有利于基站容量的充分发挥和实现远程小区域的通信信号的覆盖，从而降低运营商投资。其室外设备投资小，支持TD－SCDMA制式，其应用于乡村基站以扩大覆盖面，成本低、组网快速。

The utility model discloses a TD-SCDMA mobile communication wireless repeater, which comprises a receiving antenna, a main module of the repeater and a transmitting antenna. The downlink signal enters the low noise amplifier, enters the intermediate frequency filter after being amplified, and then passes through the power amplifier, synchronous switch, frequency selector, and then transmits to the coverage area through the retransmission antenna; while the uplink signal passes through After retransmission antenna reception, frequency selector module, synchronous switch, low noise amplifier, intermediate frequency filter, power amplifier, and synchronous switch, it transmits to the base station from the forward antenna through the coupler through the frequency selector. The utility model is beneficial to give full play to the capacity of the base station and realize the coverage of the communication signal in the remote small area, thereby reducing the investment of the operator. Its outdoor equipment has a small investment and supports TD-SCDMA standard. It is applied to rural base stations to expand coverage, with low cost and fast networking.

Description

TD-SCDMA mobile communication wireless repeater

One, technical field

The utility model relates to a kind of radio communication repeater equipment, a kind of specifically TD-SCDMA mobile communication wireless repeater.

Two, background technology

Radio communication particularly mobile radio telecommunications is the important component part of modernization communication, and its client device is along with the progress of science and technology, and its volume weight is more and more littler, and function but constantly increases, and has satisfied the society and the public's needs.But the quality of mobile communication signal is subjected to the influence of topography and geomorphology bigger, because China's complicated topographical conditions, exist as multiple landform such as mountain area, plateau or valleys, cause a little less than these areas exist large-area signal of communication blind area or signal, distinguishing, can't satisfy the demand of area communication.Simultaneously, the investment of mobile communication base station is huge, and the environmental requirement height to the setting area is confined to the restriction of cost of investment, construction period and orographic condition, can not build in a large number it.And that the communication repeater has an investment is little, and the construction period is fast, speech quality good, advantages such as system's strong anti-interference performance, and therefore adopting the repeater is that the best feeble field in the present communications field is mended blind mode.

Fig. 1 is a normal cellular networking network structure.

Existing repeater equipment mainly divides wireless discharging-directly station and optical fiber repeater two classes, and wherein the wireless discharging-directly station equipment cost is low, is easy to install, and is particularly suited for emergency communication, is that the method blind, that the increase coverage territory is the easiest is mended in communication.Along with the ripe and application of TD-SCDMA technology, the wireless discharging-directly station of employing TD-SCDMA technology is just becoming the main product in this field.

The wireless discharging-directly station base station equipment is the capital equipment that the TD-SCDMA wireless access network is built, and can be simultaneously covers and capacity for the user of the area of coverage provides by mounted base station.Equally for these reasons, for zones such as the sparse rural area of population, highway, railways, it is also bigger that the covering of wireless discharging-directly station base station is subjected to the influence of topography, can't expand the coverage area, and causes the capacity utilance very low.

Three, summary of the invention

The purpose of this utility model is that a kind of TD-SCDMA mobile communication wireless repeater will be provided, and it helps the user realizes quick networking and reduce the network investment cost, and each base station capacity is fully played, and obtains more wide covering.

TD-SCDMA mobile communication wireless described in the utility model repeater, it comprises the reception antenna that is connected by Radio Link with donor base station, repeater primary module that is connected with reception antenna and the transmitting antenna that is connected with the primary module of repeater, it is characterized in that: described repeater primary module comprises coupler, the frequency selector module, low noise amplifier module, filter, power amplifier module, monitoring module, synchro switch, separate frame module synchronously, power module, the radiofrequency signal that donor base station sends enters the straight-through end of coupler through the repeater reception antenna, pass through the frequency selector module again, arrive synchro switch, tell up-downgoing, downstream signal enters low noise amplifier, be amplified into intermediate-frequency filter, again through power amplifier, signal power has reached launch requirements, through synchro switch, the frequency selector module, the back is transmitted into the area of coverage by retransmitting antenna; And the upward signal that user mobile phone is sent out, behind retransmitting antenna reception, frequency selector module, synchro switch, LNA, intermediate-frequency filter, power amplifier, synchro switch, again through the frequency selector module, be transmitted to the base station by the straight-through end of coupler from the forward direction antenna, user mobile phone transmitted and the base station is linked up.Because the characteristics of TD-SCDMA system time division duplex and to synchronous strict demand, TD-SCDMA repeater and driedly put and its unique distinction is arranged has promptly increased and has separated frame module synchronously, utilizes it that the ON/OFF of uplink downlink is accurately controlled.

The repeater is TD-SCDMA standard repeater, and the radio frequency signal frequency of work is: 2010～2025MHz.The transmitting power of primary module is 0.1～5 watt.

As shown in Figure 2, during work, one side the utility model can be sent out with the master of base station transceiver, the main antenna of receiving carries out transmitting and receiving of mobile communication signal, simultaneously on the other hand, can carry out transmitting and receiving of mobile communication signal by retransmitting antenna and mobile phone again, thereby realize more wide covering.

Than existing base station device, remarkable advantage of the present utility model is:

1, helps the covering of the signal of communication of giving full play to and realize the remote cell territory of each base station capacity, thereby reduce operator's investment.

2, the outdoor equipment investment is little, and instant effect is set up the TD-SCDMA network fast for new operator advantage is provided.

3, support 3G (Third Generation) Moblie standard TD-SCDMA; Operating frequency: 2010～2025MHz; Be applied to rural base station and enlarge coverage rate, cost is low, networking is quick.

4, novel, reasonable in design, and equipment manufacturing cost is low, effect is good, and its market prospects are considerable.

Below in conjunction with accompanying drawing and case study on implementation the utility model is specifically described.

Four, description of drawings

Fig. 1 is a normal cellular networking network structure.

Fig. 2 is a networking network structure of the present utility model.

Fig. 3 is the theory diagram of utility model.

Fig. 4 is the networking network structure of case study on implementation.

Among the figure: 1, donor base station; 2, reception antenna; 3, wireless discharging-directly station primary module; 4, reflecting antenna; 5, transmitting antenna; 6, arterial traffic covers; 7, remote small towns covers; 8, indoor covering system

Five, embodiment

As shown in Figure 2, TD-SCDMA mobile communication wireless described in the utility model repeater, it comprises the reception antenna that is connected by Radio Link with donor base station, repeater primary module that is connected with reception antenna and the transmitting antenna that is connected with the primary module of repeater, wherein the repeater primary module comprises coupler, the frequency selector module, low noise amplifier module, filter, power amplifier module, monitoring module, synchro switch, separate frame module synchronously, power module, the radiofrequency signal that donor base station sends enters the straight-through end of coupler through the repeater reception antenna, pass through the frequency selector module again, arrive synchro switch, tell up-downgoing, downstream signal enters low noise amplifier, be amplified into intermediate-frequency filter, again through power amplifier, signal power has reached launch requirements, through synchro switch, the frequency selector module, the back is transmitted into the area of coverage by retransmitting antenna; And the upward signal that user mobile phone is sent out, behind retransmitting antenna reception, frequency selector module, synchro switch, LNA, intermediate-frequency filter, power amplifier, synchro switch, through the frequency selector module, be transmitted to the base station from the forward direction antenna again by the straight-through end of coupler.

As shown in Figure 3, operation principle of the present utility model is:

The uplink and downlink signal is amplified:

Down link (base station is to mobile phone): the radiofrequency signal 2010～2025MHz of base station output, enter the straight-through end of coupler through the repeater reception antenna, pass through the frequency selector module again, arrive synchro switch, tell up-downgoing, downstream signal enters low noise amplifier, be amplified into intermediate-frequency filter, through power amplifier, signal power has reached launch requirements again, through synchro switch, frequency selector module, after be transmitted into the area of coverage by retransmitting antenna.

Up link (mobile phone is to the base station): upward signal 2010～2025MHz that user mobile phone is sent out, behind retransmitting antenna reception, frequency selector module, synchro switch, LNA, intermediate-frequency filter, power amplifier, synchro switch, through the frequency selector module, be transmitted to the base station by the straight-through end of coupler from the forward direction antenna again.

Synchronization Control: signal 2010～2025MHz that send the base station through the coupler coupled end to separating frame module synchronously, base station subframe signal after detecting synchronously, and it is shifted to an earlier date the certain hour amount send monitoring module to, synchronizing signal control amplifier synchro switch after being compensated by monitoring module usefulness is again finally finished direct amplification machine and the base station uplink and downlink are synchronous.

As shown in Figure 4, be the networking network structure of the utility model embodiment.

Its characteristics are: the base station can connect a plurality of wireless discharging-directly stations by many airlinks, realizes the covering to a plurality of zoness of different.For example: as the comparatively remote village, small towns of signal source, the covering of small-sized indoor covering system, covering main line of communication or the like.

Main feature of the present utility model: support 3G (Third Generation) Moblie standard TD-SCDMA; Operating frequency: 2010～2025MHz; Be applied to rural base station and enlarge coverage rate, cost is low, networking is quick.

The utility model is not only novel, and is reasonable in design, and equipment manufacturing cost is low, and effect is good, and its market prospects are considerable.

Claims (3)

Translated fromChinese

1、一种TD-SCDMA移动通信无线直放站，它包括与施主基站通过无线链路连接的接收天线、与接收天线相连接的直放站主模块以及与直放站的主模块相连接的发射天线，其特征在于：所述的直放站主模块包括耦合器、频率选择器模块、低噪声放大器模块、滤波器、功率放大器模块、监控模块、同步开关、同步解帧模块、电源模块，施主基站发出的射频信号经过直放站接收天线进入耦合器直通端，再经过频率选择器模块，到达同步开关，分出上下行，下行信号进入低噪声放大器，放大后进入中频滤波器，再经功率放大器，信号功率已达到发射要求，经同步开关、频率选择器模块、后通过重发天线发射到覆盖区；而用户手机所发的上行信号，经重发天线接收、频率选择器模块、同步开关、低噪放、中频滤波器、功率放大器、同步开关后，再经频率选择器模块，通过耦合器直通端从前向天线发射给基站。1. A TD-SCDMA mobile communication wireless repeater, which includes a receiving antenna connected to the donor base station through a wireless link, a repeater main module connected to the receiving antenna, and a repeater main module connected to the repeater The transmitting antenna is characterized in that: the repeater main module includes a coupler, a frequency selector module, a low noise amplifier module, a filter, a power amplifier module, a monitoring module, a synchronous switch, a synchronous deframing module, and a power supply module, The radio frequency signal sent by the donor base station enters the straight-through end of the coupler through the receiving antenna of the repeater station, then passes through the frequency selector module, reaches the synchronous switch, separates the uplink and downlink signals, and the downlink signal enters the low noise amplifier, enters the intermediate frequency filter after amplification, and then passes through the Power amplifier, the signal power has reached the transmission requirements, and then transmits to the coverage area through the retransmission antenna through the synchronous switch and the frequency selector module; while the uplink signal sent by the user's mobile phone is received by the retransmission antenna, the frequency selector module, and synchronized After the switch, low-noise amplifier, intermediate frequency filter, power amplifier, and synchronous switch, it passes through the frequency selector module and transmits from the forward antenna to the base station through the straight-through end of the coupler.2、根据权利要求1所述的TD-SCDMA移动通信无线直放站，其特征在于：所述的直放站为TD-SCDMA制式直放站，工作的射频信号频率为：2010～2025MHz。2. The TD-SCDMA mobile communication wireless repeater according to claim 1, characterized in that: said repeater is a TD-SCDMA standard repeater, and the working radio frequency signal frequency is: 2010-2025MHz.3、根据权利要求1或2所述TD-SCDMA移动通信无线直放站，其特征在于：所述的直放站主模块的发射功率为0.1～5瓦。3. The TD-SCDMA mobile communication wireless repeater according to claim 1 or 2, characterized in that: the transmitting power of the main module of the repeater is 0.1-5 watts.

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