CN109442684A - Realize the wireless repeater and air-conditioning system of indoor radio signal covering - Google Patents
Realize the wireless repeater and air-conditioning system of indoor radio signal covering Download PDFInfo
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 45
- 238000012545 processing Methods 0.000 claims abstract description 73
- 238000004891 communication Methods 0.000 claims description 27
- 230000008054 signal transmission Effects 0.000 claims description 18
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- 238000010295 mobile communication Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/15535—Control of relay amplifier gain
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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Abstract
It include: the outdoor unit for being respectively arranged at air-conditioning system, ODU and IDU in indoor unit the invention discloses a kind of wireless repeater for realizing indoor radio signal covering and air-conditioning system, the wireless repeater；Wherein, ODU is used to that core network interface signal will to be converted to from the outdoor received radiofrequency signal in base station and is sent to IDU after upper-layer protocol signal processing, and sends after being converted to radiofrequency signal from the core network interface signal that IDU received signal is obtained through upper-layer protocol signal processing to base station；The signal that IDU sends ODU carries out base band signal process, be converted to radiofrequency signal after transmitted wirelessly in interior, and received indoor radio frequency signal is converted into baseband signal and is sent to ODU after base band signal process.It can avoid complicated wiring when indoor radio signal covering may be implemented using the present invention, and installing, indoor original finishing and appearance will not be destroyed, and do not need computer room or rack, be easily installed.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a wireless repeater and an air conditioning system for implementing indoor wireless signal coverage.
Background
Indoor coverage of mobile communication radio signals is a challenging technical problem due to its natural characteristics, and providing reliable indoor radio signal coverage is always a pain point to be solved by mobile operators from 2G to current 4G systems. Buildings in offices and homes in modern cities are higher and denser, and radio signals arriving indoors are attenuated sharply after encountering metal or cement walls, so that normal communication is difficult. For a high-rise building, the signal received by the low-rise space is generally weak, and partial signal blind areas exist; at its high level, there may be no signal coverage at all. When the mobile phone terminal is used in such an environment, poor voice quality, serious call drop phenomenon and frustrating data communication are directly caused to the customer experience. In addition, the indoor wireless signal quality is also related to the capacity of the base station, and in some indoor buildings with very high temporary population density, such as stadiums and large conference places, the problems of traffic jam, no access and the like can be caused only by depending on the service coverage of the outdoor base station.
In the upcoming 5G era, the international standards organization defined two large frequency bands as the frequency spectrum used by 5G. The frequency band below 6GHz is higher than that of the existing mobile system, and the frequency band of millimeter waves is as high as 24.25-52.6 GHz, so that the penetration capability of wireless signals on barriers such as building outer walls, inner walls and the like is weakened. In addition, the larger bandwidth required for high-speed data transmission of 5G directly results in a reduction in the effective transmission distance of wireless signals. It is expected that the problem of indoor wireless signal coverage will be more serious in the 5G mobile system.
From the mobile service perspective, most wireless services are generated indoors, and 80% of wireless communication services (including WiFi and mobile networks) are completed indoors in 2016 according to the ABI Research statistics of an authoritative global consulting agency. Therefore, improving indoor wireless signal coverage, providing reliable communication quality and sufficient communication capacity is a service pain that mobile operators have struggled to solve, and is an important content of engineering and network optimization work.
To solve the above indoor coverage problem, the current method is to deploy an indoor base station. And transmitting signals through the small base station in each indoor area to form indoor small base station coverage, and extending the service bearing network to the indoor. By the extension of the macro base station network, the purposes of eliminating an indoor coverage blind area and providing stable and reliable signal coverage and system capacity for indoor mobile communication users are achieved, so that the users can enjoy high-quality personal communication services indoors. The bearer network extending indoors may be based on wired or wireless technology.
Indoor small base stations can be divided into a micro base station (Picocell) and a pico base station (Femtocell), namely a home base station, according to the sizes of the transmitting power and the capacity of the indoor small base stations; the system can be further divided into an independent small base station (standard) or a Centralized small base station (Centralized) system according to the network deployment mode of the small base stations. However, when deploying a small base station indoors today, the following challenges and problems are prevalent:
when an operator sets up an indoor base station, complex wiring needs to be considered and designed, such as a power supply line of a small base station and a line of a service carrying network; in order to lay the lines, the original building needs to be perforated through the wall, so that the engineering quantity is huge, the original decoration and appearance of the building are damaged, and the installation and laying cost is high.
Besides, most indoor base stations are centralized except for the pico-base station used in the home, a large amount of engineering work and professional equipment are needed, a machine room or a rack is often needed for installation, and professional requirements on a constructor and maintenance personnel of a system behind the constructor are high.
Disclosure of Invention
The invention provides a wireless repeater and an air conditioning system for realizing indoor wireless signal coverage, which can avoid complex wiring during installation, cannot damage the original decoration and appearance in a building, does not need a machine room or a frame, and is easy to install.
In view of the above, the present invention provides a wireless repeater for realizing indoor wireless signal coverage, comprising: an outdoor unit ODU and an indoor unit IDU respectively arranged in an outdoor unit and an indoor unit of the air conditioning system; wherein,
the ODU is used for converting a radio frequency signal received from an outdoor base station into a core network interface signal, processing the core network interface signal by a high-layer protocol signal and then sending the core network interface signal to the IDU, converting the core network interface signal obtained by processing the signal received from the IDU by the high-layer protocol signal into a radio frequency signal and then sending the radio frequency signal to the base station;
the IDU is configured to perform baseband signal processing on a signal sent by the ODU, convert the signal into a radio frequency signal, perform indoor wireless transmission, convert a received indoor radio frequency signal into a baseband signal, perform baseband signal processing on the baseband signal, and send the baseband signal to the ODU; and the signal transmission line between the ODU and the IDU is arranged through a wiring pipeline between an outdoor unit and an indoor unit of the air conditioning system.
Wherein, the ODU specifically includes: the system comprises a first antenna, a wireless bearing communication module, a control unit and an IDU interface unit; wherein,
the wireless bearing communication module is used for receiving a radio frequency signal sent by a base station through a first antenna, converting the received radio frequency signal into a core network interface signal and sending the core network interface signal to the control unit, and converting the core network interface signal received from the control unit into a radio frequency signal and sending the radio frequency signal to the base station through the first antenna;
the control unit is used for processing a signal sent by the communication module of the wireless bearer by a high-level protocol signal and then sending the signal to the IDU through the IDU interface unit, and processing a signal received from the IDU by the IDU interface unit by the high-level protocol signal and then sending the signal to the communication module of the wireless bearer;
the IDU interface unit is connected to the IDU through the signal transmission line and used for transmitting signals processed by the control unit through high-level protocol signals to the IDU or receiving signals from the IDU.
Wherein, the IDU specifically includes: the device comprises an ODU interface unit, a baseband processing unit, a radio frequency unit and a second antenna; wherein,
the ODU interface unit is configured to be connected to the ODU through the signal transmission line, receive a signal sent by the ODU, or send a signal processed by the baseband processing unit to the ODU;
the baseband processing unit is configured to perform baseband signal processing on a signal received by the ODU interface unit from the ODU, or perform baseband processing on a baseband signal converted by the radio frequency unit and then send the baseband signal to the ODU through the ODU interface unit;
the radio frequency unit is used for converting the baseband signal processed by the baseband processing unit into a radio frequency signal or converting the radio frequency signal received by the second antenna into a baseband signal;
the second antenna is used for wirelessly transmitting the radio-frequency signal converted by the radio-frequency unit or receiving the radio-frequency signal transmitted by the indoor wireless terminal.
Preferably, the air conditioning system is a central air conditioning system including a plurality of indoor units, and the IDUs are respectively disposed in each indoor unit.
Preferably, the IDU interface unit in the ODU includes a plurality of ports, which are respectively connected to each IDU; and
the control unit is also used for analyzing a local area network private IP address when the signals sent by the wireless-bearing communication module are subjected to high-level protocol signal processing, and sending the processed signals to a port of an IDU interface unit connected with a corresponding IDU according to the mapping relation between the local area network private IP address and the IDU identifier stored locally; and
the control unit is also used for encapsulating the local area network private IP address corresponding to the IDU identification in the signal when the signal sent by the IDU is processed by a high-level protocol signal.
Preferably, the signal transmission lines between the ODU and the IDUs are routed through existing wiring ducts of the central air conditioner.
Preferably, the ODU further includes: a power supply unit connected to a power supply system of the air conditioning system, and a power line connected between the power supply unit of the ODU and the IDU;
the power supply unit is configured to provide a power supply for each of the ODU and IDU units.
Preferably, the power line between the ODU and the IDU is routed through a wiring duct between an outdoor unit and an indoor unit of the air conditioning system.
The invention further provides an air conditioning system, which comprises an outdoor unit and an indoor unit, wherein the outdoor unit and the indoor unit are respectively provided with the ODU and the IDU in the wireless repeater.
In the wireless repeater of the technical scheme, the outdoor unit ODU of the wireless repeater is arranged in the outdoor unit of the air conditioning system and the indoor unit IDU of the wireless repeater is arranged in the indoor unit of the air conditioning system by skillfully utilizing the frameworks of the outdoor unit and the indoor unit of the air conditioning system widely applied in the current building; an ODU converts a radio frequency signal received from an outdoor base station into a core network interface signal, processes the core network interface signal by a high-level protocol signal and sends the core network interface signal to the IDU; the IDU continues to process the baseband signal of the signal, converts the baseband signal into a radio frequency signal and then wirelessly transmits the radio frequency signal; therefore, the outdoor unit ODU is arranged outdoors, so that the wireless signal of an outdoor base station can be received conveniently, the converted or processed signal can be directly transmitted to the indoor unit IDU through a signal transmission line between the ODU and the IDU, the shielding and the loss of a building wall body to the signal are avoided, the IDU can convert a lossless baseband signal into a radio frequency signal and then send the radio frequency signal indoors, and the indoor wireless signal coverage is realized; meanwhile, a signal transmission line between the ODU and the IDU is arranged through a wiring pipeline between an outdoor unit and an indoor unit of the air conditioning system, so that complex indoor wiring is avoided, original decoration and appearance of a building are not damaged, an outdoor unit can directly communicate with a core network without a machine room or a frame, and the outdoor unit is easy to install.
Drawings
Fig. 1 is a schematic diagram of an internal structure of an air conditioning system and a wireless repeater for implementing indoor wireless signal coverage according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of a radio bearer communication module according to an embodiment of the present invention;
fig. 3 is a schematic diagram of multiple IDU base stations in a central air conditioning system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
The inventor considers that with the rise of the Internet of things, the domestic smart home market is in an outbreak period, wherein the intellectualization of white home appliances which are important components in the home and the Internet of things become the maximum driving force for the growth of the white electricity market, wherein smart air-conditioning products are widely applied, and the most common distributed independent air conditioners and central air conditioners are available in the market at present; in the technical solution of the present invention, an Outdoor Unit (ODU) and an Indoor Unit (IDU) of a wireless repeater (CPE) for implementing Indoor wireless signal coverage proposed by the present invention may be respectively integrated by using an Outdoor Unit and an Indoor Unit of an air conditioning system; the outdoor unit converts a radio frequency signal received from an outdoor base station into a core network interface signal, processes the core network interface signal by a high-level protocol signal and sends the core network interface signal to the IDU, converts the core network interface signal obtained by processing the signal received from the IDU by the high-level protocol signal into a radio frequency signal and sends the radio frequency signal to the outdoor base station; the indoor unit comprises a baseband processing unit and a radio frequency unit, and the functions of the baseband processing unit and the radio frequency unit are completed. The signal transmission lines between the outdoor unit and the indoor unit can reuse existing wiring pipes between the outdoor unit and the indoor unit of the air conditioning system.
Therefore, the communication between the indoor unit of the wireless repeater and the indoor terminal is completed in a wireless mode without indoor wiring, and the outdoor unit of the wireless repeater is arranged outdoors, so that the signal of an outdoor base station can be received conveniently, the space of indoor IT equipment is not occupied, and the indoor wiring of the IT equipment is not needed; therefore, the wireless repeater can better receive signals of the outdoor base station which are not shielded and shielded by a building wall, convert the signals into high-quality wireless signals to be transmitted indoors, realize indoor wireless signal coverage, simultaneously avoid complex wiring during installation, avoid destroying original decoration and appearance of the building indoors, directly communicate with a core network through an outdoor unit without a machine room or a machine frame, and is easy to install.
The technical solution of the embodiments of the present invention is described in detail below with reference to the accompanying drawings.
An internal structure of an air conditioning system and a wireless repeater arranged in the air conditioning system and used for realizing indoor wireless signal coverage is shown in fig. 1.
The air conditioning system comprises an indoor unit 201 and an outdoor unit 202, and connecting lines between the indoor unit 201 and the outdoor unit 202 are arranged through wiring pipelines penetrating through a wall body.
The wireless repeater for realizing indoor wireless signal coverage provided by the embodiment of the invention comprises: an outdoor unit ODU211 provided in an outdoor unit of an air conditioning system and an indoor unit IDU212 provided in an indoor unit of the air conditioning system; the signal transmission line between the ODU211 and the IDU212 is routed through a wiring duct between the outdoor unit and the indoor unit of the air conditioning system.
The ODU211 is configured to convert a radio frequency signal received from an outdoor base station into a core network interface signal, process the core network interface signal by using a higher layer protocol signal, and send the core network interface signal to the IDU 212;
the IDU212 is configured to perform baseband signal processing on a signal sent by the ODU211, convert the signal into a radio frequency signal, and send the signal indoors in a wireless manner;
the IDU212 is further configured to convert the received indoor radio frequency signal into a baseband signal, process the baseband signal, and send the baseband signal to the ODU 211;
the ODU211 processes a signal received from the IDU212 by a higher layer protocol signal, converts a core network interface signal obtained by the higher layer protocol signal processing into a radio frequency signal, and transmits the radio frequency signal to the outdoor base station.
The wireless signals transmitted by the outdoor base station and the IDU located indoors are independent and based on different air interface protocols or the same air interface protocol, but the wireless signals are transmitted by using different frequency bands.
Specifically, the outdoor unit ODU211 may specifically include: a first antenna 221, a communication module 222 of radio bearer, a control unit 223 and an IDU interface unit 224;
the radio bearer communication module 222 is configured to receive a radio frequency signal sent by a base station through the first antenna 221, convert the received radio frequency signal into a core network interface signal, send the core network interface signal to the control unit 223, convert the core network interface signal received from the control unit 223 into a radio frequency signal, and send the radio frequency signal to the base station through the first antenna 221;
the control unit 223 is configured to send a signal sent by the communication module 222 of the radio bearer to the IDU212 through the IDU interface unit 224 after being processed by a high-level protocol signal, and send a signal received from the IDU212 through the IDU interface unit 224 to the communication module 222 of the radio bearer after being processed by the high-level protocol signal;
the IDU interface unit 224 is connected to the IDU212 through the signal transmission line, and is used for transmitting the signal processed by the control unit 223 through the higher layer protocol signal to the IDU212, or receiving the signal from the IDU212 and transmitting the signal to the control unit 223.
As shown in fig. 2, the communication module 222 of the radio bearer may specifically include the following sub-units: a radio frequency subunit 251, a baseband signal processing subunit 252, and a higher layer protocol signal processing subunit 253;
the rf subunit 251 is configured to convert an rf signal received from a base station through the first antenna 221 into a baseband signal, and send the baseband signal to the baseband signal processing subunit 252;
the baseband signal processing subunit 252 performs baseband signal processing on the baseband signal converted by the radio frequency subunit 251 and sends the baseband signal to the higher-layer protocol signal processing subunit 253;
the higher layer protocol signal processing subunit 253 performs higher layer protocol signal processing on the signal sent by the baseband signal processing subunit 252 to obtain a core network interface signal (downlink signal), and sends the core network interface signal (downlink signal) to the control unit 223.
In addition, the higher layer protocol signal processing sub-unit 253 receives a core network interface signal (uplink signal) from the control unit 223, performs higher layer protocol signal processing, and then transmits the processed signal to the baseband signal processing sub-unit 252;
the baseband signal processing subunit 252 performs baseband signal processing on the signal sent by the higher layer protocol signal processing subunit 253, and sends the signal to the radio frequency subunit 251;
the rf subunit 251 converts the signal sent by the baseband signal processing subunit 252 into an rf signal, and sends the rf signal to the base station through the first antenna 221.
Flexibly, in an implementation, the first antenna 221 may be an external antenna of the ODU or may be an internal antenna of the ODU.
The indoor unit IDU212 may specifically include: an ODU interface unit 231, a baseband processing unit 232, a radio frequency unit 233, and a built-in or peripheral second antenna 234.
The ODU interface unit 231 is configured to be connected to the ODU211 through the signal transmission line, and receive a signal sent by the ODU 211;
the baseband processing unit 232 is configured to perform baseband signal processing on a signal received by the ODU interface unit 231 from the ODU 211;
the rf unit 233 is configured to convert the baseband signal processed by the baseband processing unit 232 into an rf signal;
the second antenna 234 is configured to wirelessly transmit the radio frequency signal converted by the radio frequency unit 233, so that the indoor wireless terminal can receive the wireless signal that is not blocked by an obstacle or a wall.
In addition, the second antenna 234 may also receive radio frequency signals transmitted by the wireless terminal indoors;
the rf unit 233 may also convert an rf signal received by the second antenna 234 into a baseband signal;
the baseband processing unit 232 may further process a baseband signal converted by the radio frequency unit 233 and send the processed baseband signal to the ODU211 through the ODU interface unit 231;
the ODU interface unit 231 may further send the signal processed by the baseband processing unit 232 to the ODU 211.
Flexibly, in implementations, the second antenna 234 may be an external antenna of the IDU212 or may be an internal antenna of the IDU 212.
Flexibly, in implementation, part of the higher layer protocol signal processing functions in the control unit 223 of the ODU211 may be moved to the baseband processing unit 232 of the IDU 212.
As a more preferred implementation manner, the ODU211 in the wireless relay that implements indoor wireless signal coverage according to the embodiment of the present invention may further include: a power supply unit 225; and a power line is also connected between the power supply unit 225 of the ODU211 and the IDU 212.
The power supply unit 225 is connected to a power supply system of the air conditioning system, and is configured to provide power to each unit of the ODU211 and the IDU 212. Therefore, when the wireless repeater provided by the embodiment of the invention is installed, indoor wiring does not need to be designed for the layout of the power line of the wireless repeater, so that the wiring space and the wiring workload are further saved, and more importantly, the damage to the original indoor decoration and appearance is avoided.
As a more preferred embodiment, as shown in fig. 3, the air conditioning system may be a central air conditioning system including a plurality of indoor units, and the IDU212 in the wireless repeater according to the embodiment of the present invention may also be a plurality of IDUs separately provided in each indoor unit of the central air conditioning system.
Through the ODU211, a plurality of IDUs 212 and ODU211 constitute a local network (LAN), and each IDU212 connected to the ODU211 is assigned a Private IP address (Private IP address) unique within the LAN. All communications between the IDU212 and ODU211 are identified and resolved with a private IP (Internet Protocol) address. In the uplink, after signals of a plurality of IDUs are aggregated in an ODU, the IDUs communicate with the base station using a public IP address. In downlink, after the ODU receives the signal of the base station, the ODU resolves out the private IP address and transmits the signal to the corresponding IDU.
Specifically, the IDU interface unit 223 in the ODU211 may have a plurality of ports, which are respectively connected to the IDUs 212.
Each IDU212 is assigned with a unique private IP address in the local area network, and a table of mapping relationships between the local area network private IP address and the id of the IDU is maintained and stored in the control unit 222 in the ODU 211.
The control unit 222 in the ODU211 may resolve a local area network private IP address when performing high-level protocol signal processing on a signal sent by the radio-bearing communication module, and send the processed signal to a port of the IDU interface unit 223 connected to the corresponding IDU212 according to a mapping relationship between the local area network private IP address stored locally and the identifier of the IDU 212; and
the control unit 222 is further configured to encapsulate, when performing higher-layer protocol signal processing on a signal sent by the IDU212, a private IP address and a public IP address of the local area network corresponding to the identifier of the IDU in the signal.
Preferably, the signal transmission lines and power lines between the ODU211 and the IDUs 212 are routed through the existing wiring pipelines of the central air conditioner. The signal transmission line between the ODU211 and IDU212 may be an electrical cable or an optical cable.
Further, the ODU211 may also be configured to receive an instruction sent by a remote management server, and perform a corresponding operation according to the received instruction.
In the wireless repeater according to the embodiment of the invention, the outdoor unit ODU211 of the wireless repeater is arranged in the outdoor unit of the air conditioning system and the indoor unit IDU212 of the wireless repeater is arranged in the indoor unit of the air conditioning system by skillfully utilizing the architecture of the outdoor unit and the indoor unit of the air conditioning system widely applied in the current building; the ODU211 converts a radio frequency signal received from an outdoor base station into a core network interface signal, processes the core network interface signal by a higher layer protocol signal, and sends the core network interface signal to the IDU 212; the IDU212 processes the baseband signal of the signal continuously, converts the signal into a radio frequency signal and then sends the signal indoors wirelessly; thus, the outdoor unit ODU211 is arranged outdoors, which is beneficial to receiving wireless signals of an outdoor base station, converted or processed signals can be directly transmitted to the indoor unit IDU112 through a signal transmission line between the ODU211 and the IDU112, thereby avoiding shielding and loss of a building wall to the signals, and the IDU112 can convert lossless baseband signals into radio frequency signals and then transmit the radio frequency signals indoors, thereby realizing indoor wireless signal coverage; meanwhile, a signal transmission line between the ODU211 and the IDU112 is routed through a wiring pipeline between an outdoor unit and an indoor unit of the air conditioning system, so that complicated indoor wiring is avoided, original decoration and appearance of a building are not damaged, an outdoor unit can directly communicate with a core network without a machine room or a frame, and the air conditioning system is easy to install.
Particularly in large and medium-sized buildings, one or more ODUs can be integrated by using an external unit of a central air conditioner, and a plurality of IDU units can be integrated by using distributed indoor units, so that a plurality of small base stations in the whole building can be used for transmitting, and continuous indoor service coverage can be realized. All wiring can be reused for the existing wiring pipeline of the central air conditioner. The existing centralized indoor coverage scheme can only utilize the existing network cable layout or redeploy indoor optical fiber connection, and the engineering quantity is very large.
Furthermore, the technical scheme of the invention can also utilize the existing power supply system of the air conditioning system to intensively supply power to the base station for realizing indoor wireless signal coverage through the wiring pipeline, namely, the power is supplied to each unit in each ODU and IDU, thereby avoiding the complexity of power supply wiring and the damage to the original indoor decoration and appearance. Each unit of the existing centralized indoor coverage scheme has to be supplied with power independently, so that the number of power sources is large, and the wiring cost of power lines is high.
Those of skill in the art will appreciate that various operations, methods, steps in the processes, acts, or solutions discussed in the present application may be alternated, modified, combined, or deleted. Further, various operations, methods, steps in the flows, which have been discussed in the present application, may be interchanged, modified, rearranged, decomposed, combined, or eliminated. Further, steps, measures, schemes in the various operations, methods, procedures disclosed in the prior art and the present invention can also be alternated, changed, rearranged, decomposed, combined, or deleted.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. A wireless repeater that implements indoor wireless signal coverage, comprising: an outdoor unit ODU and an indoor unit IDU respectively arranged in an outdoor unit and an indoor unit of the air conditioning system; wherein,
the ODU is used for converting a radio frequency signal received from an outdoor base station into a core network interface signal, processing the core network interface signal by a high-layer protocol signal and then sending the core network interface signal to the IDU, converting the core network interface signal obtained by processing the signal received from the IDU by the high-layer protocol signal into a radio frequency signal and then sending the radio frequency signal to the base station;
the IDU is configured to perform baseband signal processing on a signal sent by the ODU, convert the signal into a radio frequency signal, perform indoor wireless transmission, convert a received indoor radio frequency signal into a baseband signal, perform baseband signal processing on the baseband signal, and send the baseband signal to the ODU;
and the signal transmission line between the ODU and the IDU is arranged through a wiring pipeline between an outdoor unit and an indoor unit of the air conditioning system.
2. The wireless repeater of claim 1, wherein the ODU specifically comprises: the system comprises a first antenna, a wireless bearing communication module, a control unit and an IDU interface unit; wherein,
the wireless bearing communication module is used for receiving a radio frequency signal sent by an outdoor base station through a first antenna, converting the received radio frequency signal into a core network interface signal and sending the core network interface signal to the control unit, and converting the core network interface signal received from the control unit into a radio frequency signal and sending the radio frequency signal to the base station through the first antenna;
the control unit is used for processing a signal sent by the communication module of the wireless bearer by a high-level protocol signal and then sending the signal to the IDU through the IDU interface unit, and processing a signal received from the IDU by the IDU interface unit by the high-level protocol signal and then sending the signal to the communication module of the wireless bearer;
the IDU interface unit is connected to the IDU through the signal transmission line and used for transmitting signals processed by the control unit through high-level protocol signals to the IDU or receiving signals from the IDU.
3. The wireless repeater according to claim 2, wherein the communication module of the radio bearer specifically includes the following sub-units: the device comprises a radio frequency subunit, a baseband signal processing subunit and a high-level protocol signal processing subunit; wherein,
the radio frequency subunit is used for converting a radio frequency signal received from a base station through a first antenna into a baseband signal and sending the baseband signal to the baseband signal processing subunit, and converting a signal sent by the baseband signal processing subunit into a radio frequency signal and then sending the radio frequency signal to the base station through the first antenna;
the baseband signal processing subunit performs baseband signal processing on the baseband signal converted by the radio frequency subunit and then sends the baseband signal to the high-level protocol signal processing subunit, and performs baseband signal processing on the signal sent by the high-level protocol signal processing subunit and then sends the signal to the radio frequency subunit;
the high-level protocol signal processing subunit performs high-level protocol signal processing on the signal sent by the baseband signal processing subunit to obtain a core network interface signal, sends the core network interface signal to the control unit, performs high-level protocol signal processing on the core network interface signal received from the control unit, and sends the processed signal to the baseband signal processing subunit.
4. The wireless repeater according to claim 3, wherein the IDU comprises: the device comprises an ODU interface unit, a baseband processing unit, a radio frequency unit and a second antenna; wherein,
the ODU interface unit is configured to be connected to the ODU through the signal transmission line, receive a signal sent by the ODU, or send a signal processed by the baseband processing unit to the ODU;
the baseband processing unit is configured to perform baseband signal processing on a signal received by the ODU interface unit from the ODU, or perform baseband processing on a baseband signal converted by the radio frequency unit and then send the baseband signal to the ODU through the ODU interface unit;
the radio frequency unit is used for converting the baseband signal processed by the baseband processing unit into a radio frequency signal or converting the radio frequency signal received by the second antenna into a baseband signal;
the second antenna is used for wirelessly transmitting the radio-frequency signal converted by the radio-frequency unit or receiving the radio-frequency signal transmitted by the indoor wireless terminal.
5. The wireless repeater according to any one of claims 1 to 4, wherein the air conditioning system is a central air conditioning system including a plurality of indoor units, and the plurality of IDUs are provided in the respective indoor units.
6. The wireless repeater according to claim 5, wherein the IDU interface unit in the ODU includes a plurality of ports, each of which is connected to each IDU; and
the control unit is also used for analyzing a local area network private IP address when the signals sent by the wireless-bearing communication module are subjected to high-level protocol signal processing, and sending the processed signals to a port of an IDU interface unit connected with a corresponding IDU according to the mapping relation between the local area network private IP address and the IDU identifier stored locally; and
the control unit is also used for encapsulating the local area network private IP address corresponding to the IDU identification in the signal when the signal sent by the IDU is processed by a high-level protocol signal.
7. The wireless repeater according to claim 6, wherein the signal transmission line between the ODU and each IDU is routed through existing wiring conduits of the central air conditioner.
8. The wireless repeater of claim 1, wherein the ODU further comprises: a power supply unit connected to a power supply system of the air conditioning system, and a power line connected between the power supply unit of the ODU and the IDU;
the power supply unit is configured to provide a power supply for each of the ODU and IDU units.
9. The wireless repeater according to claim 8,
and the power line between the ODU and the IDU is arranged through a wiring pipeline between an outdoor unit and an indoor unit of the air conditioning system.
10. An air conditioning system comprises an outdoor unit and an indoor unit,
the outdoor unit and the indoor unit are respectively provided with the ODU and the IDU in the wireless repeater according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811212521.8A CN109442684A (en) | 2018-10-18 | 2018-10-18 | Realize the wireless repeater and air-conditioning system of indoor radio signal covering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811212521.8A CN109442684A (en) | 2018-10-18 | 2018-10-18 | Realize the wireless repeater and air-conditioning system of indoor radio signal covering |
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| CN109442684A true CN109442684A (en) | 2019-03-08 |
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