TWM480215U - Repeater with multiple bandwidths - Google Patents

Description

Repeater with multiple bandwidths

The present invention relates to a transponder for a mobile communication system, and more particularly to a transponder having multiple bandwidths.

In a mobile communication system, a repeater is disposed between a base station and a mobile terminal device. A repeater is essentially a device that amplifies and forwards a mobile network signal (also known as a radio frequency signal) without time delay. In the downlink, the repeater receives the signal transmitted from the base station, amplifies the received signal and transmits the amplified signal to enable the mobile terminal device to receive it. In the uplink, the repeater operates in the opposite manner so that the signal is transmitted by the mobile terminal device to the base station via the repeater. In other words, the repeater can be used to extend the coverage and capacity of the mobile communication network.

The conventional transponder has a fixed bandwidth band for use in a mobile communication system having a corresponding bandwidth or frequency. However, as the number of smart mobile terminal devices has become increasingly popular, the demand for mobile communication networks has increased. Therefore, telecommunications operators sometimes need to change the bandwidth or frequency of the mobile communication services provided to enhance or maintain communication quality. At this point, the carrier must replace the transponder in the mobile communication system with a transponder with a corresponding bandwidth band with the changed bandwidth or frequency.

A transponder having multiple bandwidths includes a first antenna, a second antenna, and a relay module. The relay module is coupled between the first antenna and the second antenna. The relay module includes a plurality of filters and a first selection unit. The filters have different bandwidths and are coupled between the first antenna and the second antenna. The first selection unit is electrically connected to the first antenna and the filters, and is configured to select one of the filters to electrically connect the selected filter to the first antenna.

In summary, according to the novel multi-bandwidth transponder, a filter corresponding to the bandwidth can be used to filter unnecessary signals in the mobile network signal according to the bandwidth required by the mobile communication system, thereby amplifying the mobile network signal, and then The overall delay of the land is reduced and the utility is improved.

10‧‧‧Transponder

11-1‧‧‧Relay antenna

11-2‧‧‧Relay antenna

111‧‧‧First antenna

113‧‧‧second antenna

13-1‧‧‧Multiplexer

13-2‧‧‧Multiplexer

15‧‧‧Relay module

15-1‧‧‧Relay Module

15-2‧‧‧Relay module

151a‧‧‧ filter

151b‧‧‧ filter

151c‧‧‧ filter

152‧‧‧Control unit

153‧‧‧First choice unit

154‧‧‧Second selection unit

155a‧‧‧Attenuator

155b‧‧‧Attenuator

155c‧‧‧ attenuator

157‧‧‧First Mixer

158‧‧‧Second mixer

159‧‧‧frequency generator

20‧‧‧Base Station

30‧‧‧ Terminal equipment

[Fig. 1] is a schematic diagram of a repeater according to an embodiment of the present invention.

[Fig. 2] is a schematic view of a relay module according to the first embodiment of the present invention.

[Fig. 3] is a schematic diagram of a relay module according to a second embodiment of the present invention.

Referring to Fig. 1, the repeater 10 and the base station 20 constitute a mobile communication system and are used to forward mobile network signals between the base station 20 and the terminal device 30. Here, the repeater 10 includes two forwarding antennas 11-1, 11-2, two multiplexers 13-1, 13-2, and two relay modules 15-1, 15-2.

The relay modules 15-1, 15-2 are coupled between the multiplexers 13-1, 13-2. The relay modules 15-1, 15-2 are electrically connected to each other via the multiplexer 13-1. Line 11-1, and the forwarding antenna 11-2 is electrically connected via the multiplexer 13-2. In other words, the relay modules 15-1, 15-2 are coupled between the forwarding antennas 11-1, 11-2 via the multiplexers 13-1, 13-2. Here, the forwarding antenna 11-1 provides a communication connection with the base station 20, and the forwarding antenna 11-2 provides a communication connection with the terminal device 30. The relay module 15-1 provides a downlink circuit for the mobile network signal, and the relay module 15-2 provides an uplink circuit for the mobile network signal.

The relay modules 15-1, 15-2 are configured to reproduce, amplify, filter, and control the output power level of the mobile network signal transmitted between the terminal device 30 and the base station 20. In other words, the relay module 15-1/15-2 processes the mobile network signal received by the forwarding antenna 11-2/11-1 while maintaining the same essence of the signal.

Referring to FIG. 2, each of the relay modules 15-1, 15-2 (hereinafter collectively referred to as the relay module 15) may include a plurality of filters 151a, 151b, and 151c and a first selection unit 153. Here, although the three filters 151a, 151b, and 151c are taken as an example, the present invention is not limited thereto, and the number of filters can be designed to be two, four, or five or the like according to actual needs.

The filters 151a, 151b, 151c have different bandwidths, respectively. For example, filter 151a has a 10M bandwidth, 151b filter has a 15M bandwidth, and filter 151c has a 20M bandwidth to provide a different bandwidth mobile communication system.

The filters 151a, 151b, and 151c are each coupled between the first antenna 111 and the second antenna 113. Here, the first antenna 111 is an antenna for wirelessly receiving a mobile network signal, and the second antenna 113 is an antenna for wirelessly transmitting a mobile network signal. For the uplink circuit, the first antenna 111 is the aforementioned forwarding antenna 11-2, The second antenna 113 is the aforementioned forwarding antenna 11-1. For the downlink circuit, the first antenna 111 is the aforementioned forwarding antenna 11-1, and the second antenna 113 is the aforementioned forwarding antenna 11-2.

The input end of the first selection unit 153 is electrically connected to the first antenna 111, and the three output ends of the first selection unit 153 are electrically connected to the filters 151a, 151b, and 151c, respectively.

The first selection unit 153 selects the corresponding bandwidth of the filters 151a, 151b, and 151c according to the bandwidth of the applied mobile communication system, and electrically connects the selected filter to the first antenna 111, thereby coming from the first The mobile network signal of the antenna 111 is transmitted to the selected filter for filtering, thereby reducing the overall group delay and improving the effect of the transponder. Here, the filters 151a, 151b, 151c may be implemented by a surface acoustic wave filter.

In some embodiments, the relay module 15 can further include a second selection unit 154. The three input ends of the second selection unit 154 are electrically connected to the outputs of the filters 151a, 151b, and 151c, respectively, and the output ends of the second selection unit 154 are electrically connected to the second antenna 113.

The second selection unit 154 selects the same filter as the first selection unit 153 (the bandwidth of which corresponds to the applied mobile communication system), and electrically connects the selected filter to the second antenna 113.

The first selection unit 153 and the second selection unit 154 can be implemented by a multiplexer.

In some embodiments, the relay module 15 may further include a plurality of attenuators 155a, 155b, 155c to adjust the gain of the signal to maintain signal strength stability and overall output power. Attenuators 155a, 155b, 155c respectively Corresponding to the filters 151a, 151b, 151c. The attenuator 155a is electrically connected between the output of the corresponding filter 151a and the second antenna 113 (or the second selection unit 154). The attenuator 155b is electrically connected between the output of the corresponding filter 151b and the second antenna 113 (or the second selection unit 154). The attenuator 155c is electrically connected between the output of the corresponding filter 151c and the second antenna 113 (or the second selection unit 154).

The attenuators 155a, 155b, 155c receive the mobile network signals processed by the corresponding filters 151a, 151b, 151c and adjust the size of the received mobile network signals.

In some embodiments, the relay module 15 can further include a first mixer 157, a second mixer 158, and a frequency generator 159. The two inputs of the first mixer 157 are electrically connected to the first antenna 111 and the frequency generator 159, respectively, and the output of the first mixer 157 is electrically connected to the first selection unit 153. An input of the second mixer 158 is electrically coupled to the front stage (ie, the filter 151a, 151b, 151c, or the attenuator 155a, 155b, 155c, or the second selection unit 154), and the second mixer 158 The other input is electrically connected to the frequency generator 159. The output of the second mixer 158 is electrically connected to the second antenna 113. In other words, the second mixer 158 is coupled between the second antenna 113 and the front stage.

The frequency generator 159 generates a predetermined frequency to the first mixer 157 and the second mixer 158. The first mixer 157 adjusts the signal frequency of the mobile network signal from the first antenna 111 in accordance with a predetermined frequency. The second mixer 158 adjusts the signal frequency of the mobile network signal from the previous stage in accordance with the predetermined frequency.

Here, the predetermined frequency generated by the frequency generator 159 may be fixed or variable. In other words, the frequency generator 159 can be a fixed frequency generator, Or a variable frequency generator.

In some embodiments, frequency generator 159 can be implemented by a combination of a frequency divider and a local oscillator. The frequency divider is coupled between the local oscillator and the first mixer 157 and between the local oscillator and the second mixer 159. The operation and principle of the frequency divider and the local oscillator are well known to those skilled in the art, and therefore will not be described again.

In some embodiments, referring to FIG. 3, the relay module 15 may further include a control unit 152. The control unit 152 is electrically connected to the control end of the first selection unit 153 and the control end of the second selection unit 154.

The control unit 152 outputs a control signal to the first selection unit 153 and the second selection unit 154. The first selection unit 153 and the second selection unit 154 select a corresponding filter according to the control signal.

In summary, according to the novel multi-bandwidth transponder, a filter corresponding to the bandwidth can be used to filter unnecessary signals in the mobile network signal according to the bandwidth required by the mobile communication system, thereby amplifying the mobile network signal, and then The overall delay of the land is reduced and the utility is improved. In some embodiments, a transponder having multiple bandwidths according to the present invention can provide a corresponding frequency for mixing in response to the frequency required by the mobile communication system. For example, when a carrier changes bandwidth and/or frequency due to factors such as new frequency release or communication system changes, the carrier can select a filter of the corresponding bandwidth or control the frequency generator by the software control selection unit. The established frequency is generated to achieve the appropriate bandwidth and/or frequency adjustment of the mobile communication system.

Although the present invention is disclosed above in the foregoing embodiments, it is not intended to limit the present invention, and any skilled artisan will not deviate from the present invention. In the spirit and scope, the scope of patent protection of this new type shall be subject to the definition of the patent application scope attached to this specification.

111‧‧‧First antenna

113‧‧‧second antenna

15‧‧‧Relay module

151a‧‧‧ filter

151b‧‧‧ filter

151c‧‧‧ filter

153‧‧‧First choice unit

154‧‧‧Second selection unit

155a‧‧‧Attenuator

155b‧‧‧Attenuator

155c‧‧‧ attenuator

157‧‧‧First Mixer

158‧‧‧Second mixer

159‧‧‧frequency generator

Claims (12)

A transponder having a multi-bandwidth, comprising: a first antenna; a second antenna; and a relay module coupled between the first antenna and the second antenna, the relay The module includes: a plurality of filters respectively having different bandwidths coupled between the first antenna and the second antenna; and a first selection unit electrically connected to the first antenna and the a filter to select one of the filters and electrically connect the selected filter to the first antenna. The transponder having a multi-bandwidth according to claim 1, wherein the relay module further comprises: a plurality of attenuators respectively corresponding to the filters, each of the attenuators being electrically connected to the corresponding filter Between the second antenna and the second antenna. The transponder having a multi-bandwidth according to claim 1 or 2, wherein the relay module further comprises: a second selection unit electrically connected to the second antenna and the filters to A selection unit selects the same filter and electrically connects the selected filter to the second antenna. The transponder having a multi-bandwidth as described in claim 3, wherein the relay module further includes: a first mixer coupled between the first antenna and the first selection unit; a second mixer coupled between the second selection unit and the second antenna; and a frequency generator electrically connected to the first mixer and the second mixer to generate a predetermined frequency The first mixer and the second mixer are coupled such that the first mixer and the second mixer adjust the signal frequency according to the predetermined frequency. A transponder having a multi-bandwidth as described in claim 4, wherein the frequency generator is a fixed frequency generator. A transponder having a multi-bandwidth as described in claim 4, wherein the frequency generator is a variable frequency generator. The transponder having a multi-bandwidth as described in claim 3, wherein the relay module further comprises: a control unit electrically connected to the first selection unit and the second selection unit to control the first selection unit And the operation of the second selection unit. The transponder having a multi-bandwidth according to claim 1 or 2, wherein the relay module further comprises: a first mixer coupled between the first antenna and the first selection unit; a second mixer coupled between the filters and the second antenna; and a frequency generator electrically connected to the first mixer and the second mixer to generate a predetermined The frequency is given to the first mixer and the second mixer such that the first mixer and the second mixer adjust the signal frequency according to the predetermined frequency. A transponder having a multi-bandwidth as claimed in claim 8, wherein the frequency generator is a fixed frequency generator. A transponder having a multi-bandwidth as described in claim 8, wherein the frequency generator is a variable frequency generator. The transponder having a multi-bandwidth as described in claim 1, wherein the relay module further comprises: a control unit electrically connected to the first selection unit to control the operation of the first selection unit. A transponder having multiple bandwidths as claimed in claim 1, wherein each of the filters is a surface acoustic wave filter.