CN104348503A - Apparatus and method for supporting multiple antenna interface standard group (AISG) ports - Google Patents
Apparatus and method for supporting multiple antenna interface standard group (AISG) ports Download PDFInfo
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Abstract
The invention relates to an apparatus and method for supporting multiple antenna interface standard group (AISG) ports. The apparatus provided by one embodiment of the invention comprises an AISG stack, a programmable universal asynchronous receiver/transmitter (UART) communicating with the AISG stack, multiple protocol transceivers, multiple current sensors, a current alarm converter and a power supply unit. The multiple current sensors respectively sense whether the current of each path exceeds the path current restriction value of the path, defined by the multiple AISG ports. When one or more of the multiple current sensors sense that the current of the corresponding path exceeds the path current restriction value of the path, the current alarm converter reports a path current alarm to the AISG stack. The power supply unit supplies power to each path and collects current information from the multiple current sensors. When the total current of all the paths exceeds a total current restriction value, the power supply unit reports a combination current alarm to the AISG stack.
Description
Technical field
The present invention is about for supporting multiple antennal interface standard group (AISG generally, Antenna Interface Standard Group) apparatus and method of port, more particularly about the apparatus and method for supporting multiple AISG port simultaneously.
Background technology
For convenience of in-site installation and saving cost, typically require remote radio-frequency heads (RRH, Remote Radio Head) support multiple AISG port simultaneously, as device antenna connector 1 (EAC1, Equipment Antenna Connector1) port, device antenna connector 2 (EAC2, Equipment Antenna Connector2) port and electric-tuning antenna device (ALD, Antenna Line Device) port.But the hardware topology of existing RRH is designed to only support an AISG port simultaneously.
Fig. 1 is the structural schematic block diagram of the hardware topology 10 of the RRH of an exemplary support AISG port.As shown in Figure 1, support that the hardware topology 10 of an AISG port comprises an AISG storehouse 100, multiple universal asynchronous receiving-transmitting transmitter (UART, Universal Asynchronous Receiver/Transmitter) 102, multiple protocol transceiver 104, and multiple AISG port one 06, wherein multiple UARTs102 communicates with multiple protocol transceiver 104 respectively.Typically, AISG storehouse 100 is arranged at central processing unit (CPU, Central Processing Unit) 110, multiple UARTs102 is arranged at field programmable gate array (FPGA, Field Programmable Gate Array) 120, and AISG storehouse 100 is communicated with multiple UARTs102 by exterior storage interface (EMI, External Memory Interface).Multiple AISG port one 06 comprises an ALD port and an EAC1 port, and wherein electric-tuning antenna device ALD1, ALD2 is connected to ALD port and ALD3, ALD4 are connected to EAC1 port.Accordingly, multiple protocol transceiver 104 comprises by binary system on off keying-1(OOK_1, On-Off Keying-1) the AISG protocol transceiver of protocol signal and EAC1 port communication, and by the RS485 protocol transceiver of RS485 protocol signal and ALD port communication.
Hardware topology 10 comprises power-supply unit (PSU, Power Supply Unit) 108 further, and it is connected with a current sensor 112.This PSU108 provides voltage, as 24 volts.This current sensor 112 connects ALD port and EAC1 port by each switch 114, and in switch 114 only one closed so that ALD port is electrically connected with current sensor 112 with in EAC1 port.
Because the AISG storehouse 100 same time only can communicate with a UART102, this electric-tuning antenna device only supporting that the hardware topology 10 of the RRH of an AISG port strongly limit this area is disposed.Therefore, a kind of RRH that simultaneously can support multiple AISG port of improvement is thirsted in the industry.
Summary of the invention
Embodiments of the invention are provided for the apparatus and method supporting multiple AISG port.
Some embodiments of the present invention provide a device, support multiple antennal interface standard group (AISG) port.This device comprises: an AISG storehouse, is connected to the programmable universal asynchronous receiving-transmitting transmitter (UART) of this AISG storehouse, at least one protocol transceiver, at least one current sensor, electric current alarm transducer, and power-supply unit.At least one protocol transceiver, is configured for communicating to this UART and being configured for being communicated with each corresponding person in multiple AISG port by each protocol signal.At least one current sensor, is connected each corresponding AISG port by each path with each switch, and is configured for sensing each AISG port current.Electric current alarm transducer, when the electric current be configured for sensing respective path when at least one current sensor exceedes the path current limits value in this path, to this AISG storehouse report path electric current alarm.Power-supply unit, connects at least one current sensor, is configured for when the total current in all paths exceedes total current limits value, reports a combination current alarm to this AISG storehouse.
In one embodiment of this invention, multiple AISG port comprises an ALD port, an EAC1 port and an EAC2 port; And corresponding, at least one protocol transceiver comprises two respectively by the AISG protocol transceiver of OOK_1, OOK_2 protocol signal with EAC1, EAC2 port communication, and passes through the RS485 protocol transceiver of RS485 protocol signal and ALD port communication.This device is configured for when the electric current that this at least one current sensor senses a respective path exceedes the path current limits value in this path, closes the AISG port of its correspondence.When the total current in all paths exceedes this total current limits value, the total current in path is clamped down at this total current limits value by this power-supply unit,, and this device is configured for evaluating each in multiple AISG port to determine whether closed after overshoot filtering.This device comprises a combiner further, and the Data Concurrent that its combination receives from multiple protocol transceiver send data splitting to UART.UART and electric current alarm transducer are configured to be communicated with AISG storehouse by an exterior storage interface.If this device is configured have identical electric-tuning antenna device for the different persons in multiple AISG port, then in different AISG port, only one is activated.
Some embodiments of the present invention provide a method, support multiple antennal interface standard group port.The method comprises: perform each TCP to the independent port in multiple AISG port; And determined whether that electric-tuning antenna device is connected to AISG port, and if connection detected, then record the identifier (ID) of this electric-tuning antenna device.If connection detected, start this AISG port, if so that identical electric-tuning antenna device ID is found corresponding different AISG port, then in different AISG port, only one is activated.Formal scanning is performed to find to be connected to the electric-tuning antenna device of the AISG port of startup to the AISG port started.In formal scanning, whether the electric current that sensing comes the path of the AISG port of self-starting exceedes its path current limits value, if so, then and report path electric current alarm.The method is included in formal scanning further, senses all paths and whether exceedes total current limits value, if so, then reports combination current alarm.
In another embodiment of the invention, in each TCP, if one is found current overload in multiple AISG port, then close by the path of this port definition; Otherwise, the scan-data being used for each TCP is sent to this AISG port.The ID group of multiple electric-tuning antenna device is comprised for each TCP and the formal scan-data scanned.If one is found current overload in multiple AISG port, then record its respective path.In each TCP and formal scanning, if the feedback data Lothrus apterus of the port accepts certainly scanned, then find electric-tuning antenna device.In each TCP and formal scanning, if find that there is data collision, then report this data collision and request repeat has the scan-data of less ID group.In formal scanning, if the electric current in a path exceedes the path current limits value in this path, the AISG port of its correspondence will be closed.If when the total current in all paths exceedes this total current limits value, the total current in all paths is clamped down at this total current limits value.When the total current sensing all paths exceedes this total current limits value, adjudicate each in multiple AISG port to determine whether closed after overshoot filtering.
Accordingly, the present invention has the advantage only simultaneously supporting multiple AISG port with an AISG storehouse and UART, avoids data collision and designs and uncomplicated difficulty, and saves cost.In addition, by the protection of each path current and total current protection, the present invention obtains very high stability.
Accompanying drawing explanation
Fig. 1 is the structural schematic block diagram of the hardware topology of the RRH of an exemplary support AISG port
Fig. 2 is the structural schematic block diagram of the hardware topology of the RRH of an exemplary multiple AISG port of support
Fig. 3 is exemplary according to an embodiment of the invention for supporting the structural schematic block diagram of the device of multiple AISG port
Fig. 4 be demonstrate exemplary according to an embodiment of the invention for supporting the flow chart of the method for multiple AISG port
Embodiment
Detailed description with the accompanying drawing is the description being used as the preferred embodiment of the present invention, but not effectively only may have mode for presenting the present invention.Will be understood that, the identical or equivalent function obtained by other embodiment should covered in the spirit and scope of the present invention.
Fig. 2 is the structural schematic block diagram of the hardware topology 20 of the RRH of an exemplary multiple AISG port of support.As shown in Figure 2, support that the hardware topology 20 of multiple AISG port comprises multiple AISG storehouse 200, multiple UARTs202, multiple protocol transceiver 204, and multiple AISG port 206.Multiple AISG storehouse 200 is arranged at CPU210, and multiple UARTs202 is arranged at FPGA220, and an AISG storehouse in multiple AISG storehouse 200 is communicated to the corresponding one in multiple UARTs202 by EMI.Multiple AISG port 206 comprises an ALD port, an EAC1 port, and an EAC2 port, and wherein electric-tuning antenna device ALD1, ALD2 is connected to ALD port, and ALD3 is connected to EAC1 port and EAC2 port.Accordingly, multiple protocol transceiver 204 comprises two AISG protocol transceiver respectively by OOK_1, OOK_2 protocol signal and EAC1, EAC2 port communication, and by the RS485 protocol transceiver of RS485 protocol signal and ALD port communication.It is noted that OOK_1, OOK_2 protocol signal is all OOK signal, be numbered for the purpose of just knowing.
Hardware topology 20 comprises a PSU208 further, connects multiple current sensor 212.This PSU208 provides voltage, as 24 volts.Multiple current sensor 212 connects ALD port, EAC1 port and EAC2 port respectively by each switch 214.Because each UART202 is supported by an AISG storehouse 200, ALD port, EAC1 port and EAC2 port can be opened simultaneously.When EAC1 port and EAC2 port are opened, AISG storehouse 1#(supports the AISG storehouse of EAC1) conflict with can produce between AISG storehouse 2# (supporting the AISG storehouse of EAC2), and existing electric current AISG agreement can not address this problem.And multiple AISG storehouse 200, namely the one to one support of AISG storehouse 1#, AISG storehouse 2# and AISG storehouse 3# to multiple UARTs202 is obtained by software, and this is relative complex and difficulty to those skilled in the art.Therefore this RRH hardware topology 20 and may not be certain to be the desired technical simultaneously supporting multiple AISG port.
According to the embodiment of the present invention for supporting that the apparatus and method of multiple AISG port can solve the problems of the technologies described above.
Fig. 3 is exemplary according to an embodiment of the invention for supporting the structural schematic block diagram of the device 30 of multiple AISG port.This device 30 is suitable for using on a RRH.With reference to figure 3, for supporting that the device 30 of multiple AISG port comprises the programmable UART302 of an AISG storehouse 300, multiple protocol transceiver 304, and multiple AISG port 306.This AISG storehouse 300 can be arranged at a CPU310 or other processing unit, as micro controller unit (MCU, MicroController Unit).This programmable UART302 can be arranged at a FPGA320 or other programmable chip.In the present embodiment, this AISG storehouse 300 is communicated with programmable UART302 by EMI.This programmable UART302 sends respectively to multiple protocol transceiver 304 and launches (TX) data.Reception (RX) data received from multiple protocol transceiver 304 are combined into a combiner 322, then transfer to UART302.Multiple AISG port 306 comprises an ALD port, an EAC1 port and an EAC2 port, and wherein each AISG port 306 can be provided one or more electric-tuning antenna device 316.In the present embodiment, electric-tuning antenna device ALD1 and ALD2 is connected to ALD port, and ALD3 is connected to EAC1 port and ECA2 port.ALD1, ALD2, and ALD3 can comprise remote electric tilting gearing (RET, RemoteElectrical Tilt) or two tower amplifier (TMA, Tower Mounted Amplifier).Accordingly, multiple protocol transceiver 304 comprises two AISG protocol transceiver respectively by OOK_1, OOK_2 protocol signal and EAC1, EAC2 port communication, and by the RS485 protocol transceiver of RS485 protocol signal and ALD port communication.
Programmable UART302 is designed to simulate the virtual A ISG port 306 that the same time communicates with this AISG storehouse 300.This UART302 can select one or more AISG port 306 transmit and receive data, such as, select ALD port and EAC1 port, then this UART302 sends identical scan-data, as comprised the identifier (ID of multiple electric-tuning antenna device, identifier) group is to ALD port and EAC1 port, and receives the data splitting from these two ports.If data splitting has conflict, then the scan-data with less ID group retransmitted by AISG storehouse 300, until the electric-tuning antenna device being connected to the plurality of AISG port is all found.
For supporting that the device 30 of multiple AISG port comprises a PSU308 further, connect multiple current sensor 312.In the present embodiment, this PSU308 is designed to provide the voltage of such as 28 volts, also to collect the current information from multiple current sensor 312 to the path supply power supply defined by each AISG port 306.Each in multiple current sensor 312 connects ALD port, EAC1 port and EAC2 port by each switch 314, senses the electric current in each path defined respectively by the plurality of AISG port 306.This is used for supporting that the device 30 of multiple AISG port has the protection of each path current and total current protection; wherein this each path current is protected as each path arranges a path current limits value, and this total current restriction protection arranges a total current limits value for all paths.The path current limits value arranged for each path and total current limits value can be used for supporting that the embody rule of the device 30 of multiple AISG port is arranged according to this, and this point should be that those skilled in the art are to understand with enlightenment based on the teaching of this specification.If above-mentioned current protection is required to meet, then in ALD port, EAC1 port and EAC2 port, at least one can open to connect the corresponding person in this some current sensor 312 at one time.
If one or more current sensor 312 senses respective path, electric current as the path by ALD port definition exceedes its path current limits value, as this is for supporting the 1.2A that the device 30 of multiple AISG port is preset, then this sensor 312 reports a path current alarm by electric current alarm transducer 318 to AISG storehouse 300.This electric current alarm transducer 318 can the mode identical with UART302 be arranged in FPGA320.Thus, when AISG port 306 failure of correspondence, as ground short circuit, this path can be quickly closed to avoid PSU308 to suffer damage with corresponding switch 304.On the other hand, the protection of each path current contributes to solving multiple electric-tuning antenna device 316, as overshoot (in-rush) electric current that ALD1, ALD2 and ALD3 initialization simultaneously causes.So-called " overshoot " is exactly supply to conduct moment to electric-tuning antenna device, due to capacitor charge and discharge effect, immediate current overshoot condition can be caused to occur.In one embodiment, this overshoot filtering time is roughly 10 milliseconds, and it enough processes the error-free closedown of 12 RETs and double T MA.
As for total current protection, if PSU308 finds the total current limits value that the total current in multiple path is predetermined more than, then PSU308 reports a combination current alarm to AISG storehouse 300.Such as, total current limits value is 2A, and when the total current of electric-tuning antenna device 316 comprising ALD1, ALD2 and ALD3 is more than 2A, the total current in all paths is clamped down at 2A and proposed a combination current alarm to AISG storehouse 300 by this PSU308.Meanwhile, each in multiple AISG port 306 is evaluated to determine whether closed after the overshoot filtering of 10 milliseconds.
For ensureing that this is for supporting that the device 30 of multiple AISG port can the work of no data collision or other mistake, is used for the method supporting multiple AISG port by execution one.This is used for supporting that the method for multiple AISG port comprises each TCP and formally scans.Fig. 4 demonstrates according to an embodiment of the invention for supporting the flow chart of the method for multiple AISG port.The method can as shown in Figure 3 for supporting that the device 30 of multiple AISG port performs.It should be noted that the order of step in figure can not limit with the numbering of each step.
With reference to Fig. 4, generally in certain embodiments, this is used for supporting that the method for multiple AISG port comprises each TCP 40 and formally scans 42.This UART302 performs each TCP 40 one by one to multiple AISG port 306.Concrete, in step 400, this UART302 receives each TCP order from AISG storehouse 300.This each TCP order comprises scan-data, and scan-data can be an electric-tuning antenna device ID group, as ALD1-10.In step 402, first this UART302 judges an AISG port, as ALD port whether current overload.If so, then in step 404, this UART302 records and closes by the path of this port definition.If not, then in step 406, this UART302 sends this scan-data comprising ID group to this AISG port 306, to receive feedback data and to judge whether to find electric-tuning antenna device 316.Preferably, if data receiver has conflict, this UART302 can require that AISG storehouse 300 retransmits a less ID group until find all electric-tuning antenna devices 316 being connected to this AISG port 306.If do not have data to feed back to from this AISG port 306, then show that this AISG port 306 does not have electric-tuning antenna device 316, interrupts the scanning on this port.In step 408, AISG storehouse 300 records unique ID of the electric-tuning antenna device 316 found, and this UART302 closes the port that this has scanned, as ALD port.Then, in step 410, this UART302 evaluate whether in the plurality of AISG port 306 all of the port scanned.If not, then to next AISG port 306, as EAC1 port repeats step 402 to 410.After all AISG ports 306 are all scanned, in step 412, AISG storehouse 300 compares unique IDs of these recorded electric-tuning antenna devices 316 to judge whether there is identical ID on different AISG ports, and judges to start (switch closes) which AISG port 306.For multiple AISG ports 306 with identical electric-tuning antenna device identifier, only one of them AISG port can be activated.Such as, in the present embodiment, identical ALD3 can detect on EAC1 and EAC2 port, and therefore only a port can be activated.Suppose to start EAC1, close EAC2.And owing to ALD port detecting ALD1 and ALD2, thus ALD port also will start.
After each TCP 40, by the port started, formally scan 42 as the ALD port in the present embodiment and EAC1 port perform.AISG storehouse 300 uses the electric-tuning antenna device ID group be similar in each TCP 40 to scan the port started simultaneously.Concrete, in step 420, this UART302 receives scan-data from AISG storehouse 300 and then scan-data is sent to ALD port and EAC1 port.In step 422, this UART302 receives the data of feedback and judges whether to find electric-tuning antenna device 316.As above described in each TCP 40, if the feedback data Lothrus apterus of this UART302 self-starting port accepts, then show to find electric-tuning antenna device 316.If there is data collision, then this UART302 asks it to retransmit to have the scan-data of less ID group to AISG storehouse 300 report data conflict.In formal scanning 42, in step 424,426, the protection of each path current is protected with total current also can work to guarantee that each path current/power of its enable port and total current/power are all in control range respectively.
By each TCP with formally scan, in conjunction with each path current protect and total current protect, according to the embodiment of the present invention for supporting that the apparatus and method of multiple AISG port allow multiple AISG port to work and no data collision and somewhat complex design simultaneously.
Technology contents of the present invention and technical characterstic disclose as above, but those of ordinary skill in the art still may do all replacement and the modification that do not deviate from spirit of the present invention based on teaching of the present invention and announcement.Therefore, protection scope of the present invention should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modification, and is contained by present patent application claims.
Claims (17)
1. a device, supports multiple antennal interface standard group (AISG) port; This device comprises:
One AISG storehouse;
One programmable universal asynchronous receiving-transmitting transmitter (UART), is connected to this AISG storehouse;
At least one protocol transceiver, is configured for communicating to this UART and being configured for being communicated with each corresponding person in described multiple AISG port by each protocol signal;
At least one current sensor, is connected each corresponding AISG port by each path with each switch, and is configured for sensing described each AISG port current;
Electric current alarm transducer, is configured for when the electric current that described at least one current sensor senses respective path exceedes the path current limits value in this path, to this AISG storehouse report path electric current alarm; And
Power-supply unit, connects described at least one current sensor, is configured for when the total current in all paths exceedes total current limits value, reports a combination current alarm to this AISG storehouse.
2. device as claimed in claim 1, wherein said multiple AISG port comprises an electric-tuning antenna device ALD) port, a device antenna connector EAC1 port and a device antenna connector EAC2 port; And it is corresponding, described at least one protocol transceiver comprises two AISG protocol transceiver respectively by binary system on off keying OOK_1, binary system on off keying OOK_2 protocol signal and EAC1, EAC2 port communication, and passes through the RS485 protocol transceiver of RS485 protocol signal and ALD port communication.
3. device as claimed in claim 1, when the electric current that described at least one current sensor senses a respective path exceedes the path current limits value in this path, the AISG port of its correspondence will be closed.
4. device as claimed in claim 1, when the total current in all paths exceedes this total current limits value, the total current in described path is clamped down at this total current limits value by this power-supply unit.
5. device as claimed in claim 1, when it is configured for exceeding this total current limits value when the total current in all paths, evaluates each in described multiple AISG port to determine whether closed after overshoot filtering.
6. device as claimed in claim 1, it comprises a combiner, and this combiner is configured the data for combining from described at least one protocol transceiver reception and institute's data splitting is sent to described UART by one.
7. device as claimed in claim 1, wherein said UART and electric current alarm transducer are configured to be communicated with described AISG storehouse by an exterior storage interface.
8. device as claimed in claim 1, have identical electric-tuning antenna device if be configured for the different persons in described multiple AISG port, then in described different AISG port, only one is activated.
9. a method, supports multiple antennal interface standard group (AISG) port; Described method comprises:
Each TCP is performed to the independent port in multiple AISG port; Determined whether that electric-tuning antenna device (ALD) is connected to AISG port, and if connection detected, then record the identifier (ID) of this electric-tuning antenna device;
If connection detected, start this AISG port, if so that identical electric-tuning antenna device ID is found corresponding different AISG port, then in described different AISG port, only one is activated;
Formal scanning is performed to find to be connected to the electric-tuning antenna device of the AISG port of startup to the AISG port started;
In described formal scanning, whether the electric current sensing the path of the AISG port from described startup exceedes its path current limits value, if so, then and report path electric current alarm; And
In described formal scanning, sense all paths and whether exceed total current limits value, if so, then report combination current alarm.
10. method as claimed in claim 9, wherein in each TCP described, if one is found current overload in described multiple AISG port, then closes by the path of this port definition; Otherwise, the scan-data being used for each TCP described is sent to this AISG port.
11. methods as claimed in claim 9, the wherein said ID group comprising multiple electric-tuning antenna device for each TCP and the formal scan-data scanned.
12. methods as claimed in claim 9, if one is found current overload in described multiple AISG port, then record its respective path.
13. methods as claimed in claim 9, wherein in each TCP described and formal scanning, if the feedback data Lothrus apterus of the port accepts certainly scanned, then find electric-tuning antenna device.
14. methods as claimed in claim 9, wherein in each TCP described and formal scanning, if find that there is data collision, then report this data collision and request repeat has the scan-data of less ID group.
15. methods as claimed in claim 9, wherein in described formal scanning, if the electric current in a path exceedes the path current limits value in this path, the AISG port of its correspondence will be closed.
16. methods as claimed in claim 9, wherein in described formal scanning, if when the total current in all paths exceedes this total current limits value, clamp down on the total current in this all path at this total current limits value.
17. methods as claimed in claim 9, wherein when the total current sensing all paths exceedes this total current limits value, evaluate each in described multiple AISG port to determine whether closed after overshoot filtering.
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