Compatible with and upgradeable multi-system combined platform

Abstract

The present invention discloses a compatible upgradeable multi-system combining platform, comprising a subunit module, a module to be upgraded and a main unit, wherein the subunit module comprises at least one subunit submodule for connecting a corresponding signal end, the module to be upgraded and the subunit are arranged in parallel, the main unit is connected to an antenna feed system, the main unit comprises a first combining unit and a second combining unit, the first combining unit comprises a first filter and at least one first matching filter, the second combining unit comprises a second filter and at least one second matching filter, wherein the module to be upgraded is respectively connected to the first matching filter and the second matching filter. The present invention is convenient to upgrade and has low insertion loss, and does not need to disconnect the original antenna feed link during upgrading, and is simple and quick to operate.

Description

Technical Field

[0001] The present invention relates to a POI system using communication technology, and in particular to a compatible and upgradeable multi-system combining platform. Background Art

[0002] POI (Point of interface, multi-system combining platform) is widely used in the communication field. POI system can combine the signals of multiple services (CDMA, GSM, WCDMA, UMTS, LTE, etc.) according to different application environments by using frequency combiners and bridge combiners, and introduce the combined signals into the antenna distribution system to make full use of resources and save investment. The system is mainly used for indoor coverage of large buildings such as convention and exhibition centers, exhibition halls, airports, subways, etc.

[0003] POI is a customized product based on different application scenarios. The input and output port types and port numbers as well as the frequency band of each channel are fixed values. Due to the rapid development of communication technology and the continuous expansion of communication frequency bands, the existing POI is facing the problem of upgrading.

[0004] There are only two traditional upgrade methods: one is to replace the whole device: replace the old POI with a POI that contains more systems and formats. The obvious disadvantage is that the cost is high and the old device can no longer be used; the other is to upgrade the POI in series (such as Figure 1 As shown in FIG. 1 ), the POI system 20 is upgraded in series with the original POI system 10 to add a new channel to the system. Although this upgrade solution avoids the above disadvantages, it also increases the insertion loss of the original system.

[0005] In addition, both of the above solutions must disconnect the original antenna feeder link during the upgrade, which means that the upgrade construction will inevitably lead to the disconnection of the original system for a certain period of time. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the prior art and provide a compatible and upgradeable multi-system combining platform which is easy to upgrade, has low insertion loss, and does not require disconnection of the original antenna feeder link during the upgrade.

[0007] To achieve the above object, the present invention proposes the following technical solution: a compatible and upgradeable multi-system combining platform, the combining platform comprising:

[0008] A subunit module, the subunit module includes at least one subunit submodule, which is used to connect corresponding signal terminals;

[0009] a module to be upgraded, the module to be upgraded being arranged in parallel with the subunit; and

[0010] A main unit, wherein the main unit is connected to the antenna feed system, the main unit comprises a first combining unit and a second combining unit, the first combining unit comprises a first filter and at least one first matching filter, the second combining unit comprises a second filter and at least one second matching filter, wherein the module to be upgraded is respectively connected to the first matching filter and the second matching filter.

[0011] Preferably, the sub-unit submodules are respectively connected to the first filter and the second filter of the corresponding frequency band.

[0012] Preferably, the frequency band included in the module to be upgraded is LTE700 or TD2300 or LTE2600.

[0013] Preferably, the module to be upgraded is connected to a sub-unit sub-module of a corresponding frequency band.

[0014] Preferably, the module to be upgraded comprises at least one upgrade unit, each upgrade unit comprises at least one sub-upgrade unit, a third combiner and a fourth combiner, and the upgrade unit is connected to the third combiner and the fourth combiner respectively.

[0015] Preferably, the unit to be upgraded includes two sub-upgrade units, and each sub-upgrade unit is connected to the third combiner and the fourth combiner respectively.

[0016] Preferably, the first matched filter and the second matched filter comprise low-pass filters respectively.

[0017] Preferably, the low-pass filter can pass signals of 380-960 MHz.

[0018] Preferably, the first matched filter and the second matched filter comprise high pass filters respectively.

[0019] Preferably, the high pass filter can pass signals of 2300-3500 MHz.

[0020] The invention is compatible with the upgradeable multi-system combining platform. When upgrading, the original system can continue to be used, and the upgrading process does not need to disconnect the existing system. The upgrading is convenient, the insertion loss is low, and after the upgrade, the original system performance is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the POI system upgrade structure in the prior art;

[0022] Figure 2 is a schematic diagram of Embodiment 1 of the present invention;

[0023] Figure 3 It is a schematic diagram of the second embodiment of the present invention.

[0024] Figure numerals: 1. sub-unit module, 11. sub-unit sub-module, 2. module to be upgraded, 21. upgrade unit, 211. sub-upgrade unit, 22. third combiner, 23. fourth combiner, 3. main unit, 31. first combiner unit, 311. first filter, 312. first matching filter, 32. second combiner unit, 321. second filter, 322. second matching filter. DETAILED DESCRIPTION

[0025] The technical solutions of the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention.

[0026] The present invention is applied to multi-standard signal transmission. Figure 2 The first embodiment of the present invention is shown, in which six signal access ports are set at the signal end, wherein the subunit module 1 includes three common communication ports of GSM900, DCS1800 and WCDMA, LTE700, TD2300 and LTE2600 are the modules 2 to be upgraded, and the main unit 3 is respectively connected to the subunit module 1 and the modules 2 to be upgraded of the corresponding frequency bands, so that when the POI is upgraded, there is no need to replace the module, the original system and the upgraded module are compatible, and there is no need to disconnect the existing system during the upgrade process.

[0027] Specifically, the subunit module 1 includes three subunit submodules 11, each submodule is used to process the signal of the corresponding standard, filter and combine it, and each subunit submodule forms a two-way signal interface. The structure of each submodule can refer to the patented technology of Chinese Patent Publication No. CN204905400U and the name of "Modular Multi-system Combining Platform". The submodules are modularly designed, plug-in connected, and easy to operate.

[0028] The module to be upgraded 2 includes three upgrade units 21. Similarly, each upgrade unit 21 also forms two signal interfaces. The modular structure of the upgrade unit can refer to the sub-unit sub-module design.

[0029] The main unit 3 includes a first combining unit 31 and a second combining unit 32, each combining unit is composed of a plurality of filters, the first combining unit 31 includes a first filter 311 connected to the subunit module 1 and a first matching filter 312 connected to the module to be upgraded 2, and similarly, the second combining unit 32 includes a second filter 321 connected to the subunit module 1 and a second matching filter 322 connected to the module to be upgraded 2, Figure 2 A six-way combiner is shown, which includes a structure of three matched filters. Of course, the number of matched filters can be adjusted according to the number of upgrade units.

[0030] Further, the subunit submodule 11 of each subunit module 1 forms an uplink and a downlink, wherein the uplink is connected to the first filter 311 of the corresponding frequency band of the first combiner unit, and the downlink is connected to the second filter 321 of the corresponding frequency band of the second combiner unit; similarly, the upgrade unit 21 of each module to be upgraded 2 forms an uplink and a downlink, wherein the uplink is connected to the first matching filter 312 of the corresponding frequency band of the first combiner unit, and the downlink is connected to the second matching filter 322 of the corresponding frequency band of the second combiner unit. For example, in this embodiment, the uplink and downlink of LTE700 are respectively connected to the low-pass filters of the two combiner units, and the uplink and downlink of TD2300 and LTE2600 are respectively connected to the high-pass filters of the two combiner units.

[0031] In this embodiment, the types and quantities of multi-standard signals of the sub-unit modules and the modules to be upgraded are not limited to the scope shown in the figure, and can also be other standard signal channels, such as telecommunications CDMA800 and other frequency band signals, and the two combining units of the main unit can also only reserve high-pass filters or low-pass filters. In the embodiment of the present invention, the main unit is composed of a multi-frequency combiner, including the currently known frequency band to be upgraded, the upgrade unit and the original sub-module are in parallel, and each module is independent of each other. Upgrading the POI system does not affect the various indicators of the original system at all. When upgrading, it is only necessary to insert the upgrade module into the designated slot.

[0032] Figure 3 The second embodiment of the present invention is shown, and seven signal access ports are set at the signal end, wherein the subunit module 1 includes four common communication ports of GSM900, DCS1800, WCDMA, and LTE2600, 700MHz, 850MHz, and 3300MHz are for the module 2 to be upgraded, and the main unit 3 is respectively connected to the subunit module 1 and the module 2 to be upgraded of the corresponding frequency band.

[0033] Specifically, in this embodiment, the subunit module 1 includes four subunit submodules 11, each submodule is used to process the signal of the corresponding standard, filter and combine it, and each subunit submodule forms a two-way signal interface. The structure of each submodule can refer to the patented technology of China Patent Publication No. CN204905400U and the name of "Modular Multi-system Combining Platform", which has modular design, plug-in connection, and easy operation.

[0034] The module to be upgraded 2 includes two upgrade units 21, each of which includes a third combiner 22 and a fourth combiner 23, wherein the upgrade unit with a frequency band of 3300MHz includes a sub-upgrade unit 211, and the upgrade unit with a frequency band of 700MHz and 850MHz includes two sub-upgrade units 211, each sub-upgrade unit 211 is respectively connected to the corresponding third combiner 22 and fourth combiner 23, and the third combiner and the fourth combiner are respectively connected to the sub-unit submodule 11 of the corresponding frequency band. As shown in the figure, the low-frequency combiners with frequency bands of 700MHz and 850MHz are respectively connected to the GSM900 low-frequency band sub-unit submodule, and the high-frequency combiner with a frequency band of 3300MHz is connected to the LTE2600 high-frequency band sub-unit submodule.

[0035] Similar to the first embodiment, the main unit 3 includes a first combining unit 31 and a second combining unit 32, each combining unit is composed of a plurality of filters, the first combining unit 31 includes a first filter 311 connected to the subunit module 1 and a first matching filter 312 connected to the module to be upgraded 2, and similarly, the second combining unit 32 includes a second filter 321 connected to the subunit module 1 and a second matching filter 322 connected to the module to be upgraded 2. At this time, since the two combining units do not need to be directly connected to GSM900 and LTE2600, each combining unit only uses two matching filters. Therefore, the number of filters of the two combining units in this embodiment is reduced, and the size of the combiner can be appropriately reduced. When upgrading, the system adds an upgrade unit and adjusts the connecting cable between the subunit and the main unit, and the frequency band upgrade can be completed.

[0036] In the above two embodiments, the signal port includes the system GSM900 / DCS1800 / WCDMA / LTE2600, etc., and its frequency band has covered 800-2700MHz. The frequency band that may be upgraded in the later stage will be 700 / 850 / 2300 / 2500 / 3300, but the 5G standard has not yet been determined, the specific frequency band is still unknown, and different countries / regions have different frequency band allocations, and each application scenario has different plans, so it is difficult to predict how to upgrade in the future. Therefore, the lowest frequency channel of the combiner in the main unit is designed as a low-pass filter, which can pass 380-960MHz signals, such as 380MHz or 960MHz, and the highest frequency channel is designed as a high-pass filter, which can pass 2300-3500MHz signals, such as 2300MHz or 3500MHz.

[0037] The technical contents and technical features of the present invention have been disclosed as above. However, those skilled in the art may still make various substitutions and modifications based on the teachings and disclosures of the present invention without departing from the spirit of the present invention. Therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications that do not depart from the present invention and are covered by the claims of this patent application.

Claims

1. A compatible and upgradeable multi-system combining platform, characterized in that: The combining platform comprises: A subunit module, the subunit module includes at least one subunit submodule, which is used to connect corresponding signal terminals; a module to be upgraded, the module to be upgraded being arranged in parallel with the subunit; and A main unit, the main unit is connected to the antenna feed system, the main unit includes a first combining unit and a second combining unit, the first combining unit includes a first filter and at least one first matching filter, the second combining unit includes a second filter and at least one second matching filter, wherein the module to be upgraded is respectively connected to the first matching filter and the second matching filter, wherein, The module to be upgraded is connected to the sub-unit sub-module of the corresponding frequency band; The module to be upgraded includes at least one upgrade unit, each upgrade unit includes at least one sub-upgrade unit, a third combiner and a fourth combiner, and the sub-upgrade unit is connected to the third combiner and the fourth combiner respectively.

2. The compatible and upgradeable multi-system combining platform according to claim 1, characterized in that: The sub-unit modules are respectively connected to the first filter and the second filter of the corresponding frequency band.

3. The compatible and upgradeable multi-system combining platform according to claim 1, characterized in that: The frequency band included in the module to be upgraded is LTE700 or TD2300 or LTE2600.

4. The compatible and upgradeable multi-system combining platform according to claim 1, characterized in that: The module to be upgraded includes two sub-upgrade units, and each sub-upgrade unit is connected to the third combiner and the fourth combiner respectively.

5. The compatible and upgradeable multi-system combining platform according to claim 1, characterized in that: The first matched filter and the second matched filter each include a low pass filter.

6. The compatible and upgradeable multi-system combining platform according to claim 5, characterized in that: The low pass filter can pass signals between 380 and 960 MHz.

7. The compatible and upgradeable multi-system combining platform according to claim 1, characterized in that: The first matched filter and the second matched filter each include a high pass filter.

8. The compatible and upgradeable multi-system combining platform according to claim 7, characterized in that: The high pass filter can pass signals of 2300-3500 MHz.

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