CN106850139B - Grouping microwave equipment with link adjustment information feedback function - Google Patents
Grouping microwave equipment with link adjustment information feedback function Download PDFInfo
- Publication number
- CN106850139B CN106850139B CN201710021644.2A CN201710021644A CN106850139B CN 106850139 B CN106850139 B CN 106850139B CN 201710021644 A CN201710021644 A CN 201710021644A CN 106850139 B CN106850139 B CN 106850139B
- Authority
- CN
- China
- Prior art keywords
- service
- interface unit
- intermediate frequency
- processing module
- frequency interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Radio Relay Systems (AREA)
Abstract
The invention discloses a grouping microwave device with a link adjustment information feedback function. A service processing module of the equipment can acquire a bandwidth value of a microwave link of an intermediate frequency interface unit, and after the service sending rate sent to the intermediate frequency interface unit is adjusted according to the bandwidth value, the service received by the service interface unit is sent to the intermediate frequency interface unit according to the adjusted service sending rate, and the intermediate frequency interface unit converts the service sent by the service processing module into a microwave signal and sends the microwave signal to the outside. The clock processing module of the device is used for ensuring the clock synchronization of the service processing module and each intermediate frequency interface unit. The invention can adjust the sending rate of the service immediately according to the bandwidth value of the microwave link after the intermediate frequency interface unit is changed, thereby ensuring the normal forwarding of the high-priority service under the condition of knowing the bandwidth change, ensuring the application perception accuracy of the user and obviously improving the reliability of the microwave equipment.
Description
Technical Field
The invention relates to the field of service forwarding of packet microwave equipment, in particular to packet microwave equipment with a link adjustment information feedback function.
Background
In the 2G TDM (time-division multiplexing) era and the 3G ATM (Asynchronous Transfer Mode) era, due to the shortage of wired resources of an access stratum, 60% of base stations in the world adopt PDH (Plesiochronous Digital Hierarchy) microwave access, and with the increase of the capacity of the base stations and the development of IP, the bearer technology in this field will need to be synchronously evolved. The traditional PDH microwave equipment is forced to fully evolve towards the new generation of card type grouping microwave equipment.
Meanwhile, optical network ring-forming protection construction often faces many limitations based on geographic condition limitations, construction period, investment income and other reasons; in addition, in the regions of high mountains, rivers, urban dense high buildings and the like, the optical fiber is limited by terrain conditions, the laying difficulty of the optical fiber for ring supplement is high, the construction period is long, and the construction cost is high. Therefore, in the above conditions, the conventional microwave is generally selected for the optical network ring-compensating link, thereby overcoming the limitation of the terrain.
However, when the weather of the conventional microwave device changes, the intermediate frequency interface unit of the microwave device cannot feed back the bandwidth modulation information changed after adaptive modulation to the upstream device; therefore, the upstream device cannot sense that the docked microwave link is adjusted, and therefore, the upstream device can continuously send the data packet to the microwave link according to the original bandwidth, so as to cause random packet loss, and further cannot protect the high-priority service (the high-priority service cannot be sent due to insufficient bandwidth), thereby greatly influencing application sensing of a user and greatly reducing reliability of the microwave device.
Meanwhile, in order to meet the high performance requirement of priority service mapping in each intermediate frequency interface unit, each intermediate frequency interface unit of the conventional microwave device needs to select 1 Quality of service (QOS) processing chip with strong function and high power consumption, which is expensive, thereby increasing the cost of the whole microwave device.
Disclosure of Invention
Aiming at the defects in the prior art, the invention solves the technical problems that: and immediately adjusting the sending rate of the service according to the changed bandwidth value of the microwave link of the intermediate frequency interface unit.
In order to achieve the above object, the packet microwave device with link adjustment information feedback function provided by the present invention comprises a service processing module, a clock processing module, a control unit, a power supply unit, a fan unit, an auxiliary interface unit, a backplane bus, a plurality of intermediate frequency interface units and a plurality of service interface units, wherein each intermediate frequency interface unit corresponds to 1 group of register components, and 1 service interface unit corresponds to at least 1 intermediate frequency interface unit;
the service processing module, the clock processing module, the control unit, the fan unit, the auxiliary interface unit, all the intermediate frequency interface units and the service interface unit are all communicated with the backboard bus;
the service interface unit is used for: receiving a service in a service interface;
the service processing module is used for: acquiring a bandwidth value transmitted by the intermediate frequency interface unit from a time sequence channel of the backplane bus to a corresponding register component; if the reserved value in the register component is different from the current bandwidth value, deleting the reserved value in the register component, storing the current bandwidth value, adjusting the service sending rate sent to the intermediate frequency interface unit corresponding to the current bandwidth value according to the current bandwidth value, and sending the service received by the service interface unit to the intermediate frequency interface unit according to the adjusted sending rate;
the intermediate frequency interface unit is used for: transmitting the bandwidth value of the current microwave link to a time sequence channel of a back board bus, and transmitting the bandwidth value by all intermediate frequency interface units according to a preset time sequence; converting the service sent by the service processing module into a microwave signal and then sending the microwave signal;
the register component is to: receiving a bandwidth value transmitted by a service processing module;
the clock processing module is used for: controlling the clock synchronization of the service processing module and each intermediate frequency interface unit through a backboard bus;
the process that the service processing module adjusts the service sending rate sent to the intermediate frequency interface unit according to the bandwidth value is as follows: and adjusting the bandwidth of the service sending rate sent to the intermediate frequency interface unit to be the same as the bandwidth value.
Compared with the prior art, the invention has the advantages that:
(1) compared with the transmission microwave device which can not feed back the bandwidth modulation information changed after the adaptive modulation to the upstream device in the prior art, the invention can intensively obtain the bandwidth value of the microwave link fed back by each path of intermediate frequency interface unit through the service processing module, and further adjust the service sending rate sent to the intermediate frequency interface unit according to the fed back bandwidth value. On the basis, the invention can ensure the normal forwarding of the high-priority service under the condition of knowing the bandwidth change by matching with the QOS function of the service processing module, so that the application perception of the user is accurate, and the reliability of the microwave equipment is obviously improved.
(2) The invention adopts the mode of progressively adjusting the service sending rate to the intermediate frequency interface unit to adjust the service sending rate of the service interface unit, thereby ensuring the stability of the service transmission of the service interface unit. After verification, when the microwave links of the multi-channel intermediate frequency interface unit simultaneously perform AM (Amplitude Modulation) switching to the low Modulation mode, the high priority service does not generate error codes or packet loss while discarding the low priority service; meanwhile, the invention can also meet the requirement that the high-priority service does not generate error codes or packet loss at the fading speed of 100 dB/s.
(3) The invention does not need to realize the high-performance requirement function of priority service mapping on the intermediate frequency interface unit, so the intermediate frequency interface unit of the invention does not need to select a QOS processing chip with higher price in the prior art, and only needs to select an ASIC (Application Specific Integrated circuit) chip with low cost and low power consumption, thereby obviously reducing the cost of the grouped microwave equipment.
Drawings
Fig. 1 is a communication connection block diagram of a packet microwave device with a link adjustment information feedback function according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the packet microwave device with link adjustment information feedback function according to the embodiment of the present invention includes a service processing module, a clock processing module, a control unit, a power supply unit, a fan unit, an auxiliary interface unit, a backplane bus, a plurality of intermediate frequency interface units (intermediate frequency interface units 1 to N) and a plurality of service interface units (service interface units 1 to N), where each intermediate frequency interface unit corresponds to 1 group of register components, and 1 service interface unit corresponds to at least 1 intermediate frequency interface unit.
The service processing module, the clock processing module, the control unit, the fan unit, the auxiliary interface unit, all the intermediate frequency interface units and the service interface unit are all communicated with the backboard bus.
The service interface unit is used for: the service interface unit comprises an STM1 interface (Synchronous Transfer Module-1, Synchronous transmission interface with the rate of 155.520 Mbps), an E1 interface (telecommunication standard interface), an FE interface (Fast Ethernet, hundred-mega Ethernet interface), a GE interface (Gigabit Ethernet, Gigabit Ethernet interface) and an XGE interface (10GE, optical Ethernet interface).
The service processing module is used for: after receiving a bandwidth value comparison signal sent by the intermediate frequency interface unit, acquiring a bandwidth value transmitted by the intermediate frequency interface unit from a time sequence channel of the backplane bus to a corresponding register component, and comparing whether a reserved value in the register component is the same as a current bandwidth value (if the reserved value is empty for the first use):
if not, deleting the reserved value in the register component, and storing the current bandwidth value; and adjusting the service sending rate (adjusted to be the same as the current bandwidth value) sent to the intermediate frequency interface unit corresponding to the current bandwidth value according to the current bandwidth value, and sending the service received by the service interface unit to the intermediate frequency interface unit according to the adjusted sending rate. In order to ensure the stability of the service transmitted by the service interface unit, in this embodiment, a progressive adjustment manner is adopted to adjust (increase or decrease) the service transmission rate, that is, the bandwidth transmitted to the intermediate frequency interface unit is adjusted in multiple times (at least 1 time), the value of the bandwidth adjusted each time is less than or equal to a preset threshold (512kb), for example, the current bandwidth value is 1M, the service transmission rate before adjustment is 3M/s, the service transmission rate is decreased in 4 times, 512kb is decreased each time, and the service transmission rate after 4 decreases becomes 1M/s.
If the received service is the same as the received service, the service interface unit directly sends the received service to the intermediate frequency interface unit.
The intermediate frequency interface unit is used for:
(1) and after the bandwidth value of the current microwave link is transmitted to a time sequence channel of the back board bus, a bandwidth value comparison signal is sent to the service processing module, and all the intermediate frequency interface units transmit the bandwidth value according to a preset time sequence. The intermediate frequency interface unit only needs to adopt an ASIC chip with low power consumption and low cost because the intermediate frequency interface unit does not need to carry out QOS processing on services.
(2) And converting the service sent by the service processing module into a microwave signal and then sending the microwave signal.
The register component is to: and receiving the bandwidth value transmitted by the service processing module, wherein in order to ensure that a sufficiently large bandwidth value can be received, the 1 group of register components comprises 4 registers with 32-bit bandwidth.
The clock processing module is used for: and controlling the service processing module to be synchronous with the clock of each intermediate frequency interface unit through a backboard bus.
The power supply unit is used for: and the power supply bus supplies power to the service processing module, the clock processing module, the control unit, the fan unit, the auxiliary interface unit, all the intermediate frequency interface units and the service interface unit.
The fan unit is used for: and the heat is dissipated for the service processing module, the clock processing module, the control unit, the power supply unit, the auxiliary interface unit, all the intermediate frequency interface units and the service interface unit.
The auxiliary interface unit is used for: an auxiliary interface is provided for the grouped microwave devices.
The control unit is used for: and the control service processing module, the clock processing module, the power supply unit, the fan unit, the auxiliary interface unit, all the intermediate frequency interface units and the service interface unit work.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (9)
1. A packet microwave device with link adjustment information feedback function comprises a service processing module, a clock processing module, a control unit, a power supply unit, a fan unit, an auxiliary interface unit, a backboard bus, a plurality of intermediate frequency interface units and a plurality of service interface units, wherein each intermediate frequency interface unit corresponds to 1 group of register components, and 1 service interface unit at least corresponds to 1 intermediate frequency interface unit;
the method is characterized in that: the service processing module, the clock processing module, the control unit, the fan unit, the auxiliary interface unit, all the intermediate frequency interface units and the service interface unit are all communicated with the backboard bus;
the service interface unit is used for: receiving a service in a service interface;
the service processing module is used for: acquiring a bandwidth value transmitted by the intermediate frequency interface unit from a time sequence channel of the backplane bus to a corresponding register component; if the reserved value in the register component is different from the current bandwidth value, deleting the reserved value in the register component, storing the current bandwidth value, adjusting the service sending rate sent to the intermediate frequency interface unit corresponding to the current bandwidth value according to the current bandwidth value, and sending the service received by the service interface unit to the intermediate frequency interface unit according to the adjusted sending rate;
the intermediate frequency interface unit is used for: transmitting the bandwidth value of the current microwave link to a time sequence channel of a back board bus, and transmitting the bandwidth value by all intermediate frequency interface units according to a preset time sequence; converting the service sent by the service processing module into a microwave signal and then sending the microwave signal;
the register component is to: receiving a bandwidth value transmitted by a service processing module;
the clock processing module is used for: controlling the clock synchronization of the service processing module and each intermediate frequency interface unit through a backboard bus;
the process that the service processing module adjusts the service sending rate sent to the intermediate frequency interface unit according to the bandwidth value is as follows: and adjusting the bandwidth of the service sending rate sent to the intermediate frequency interface unit to be the same as the bandwidth value.
2. The packet microwave device with link adjustment information feedback function according to claim 1, wherein: and the service processing module adjusts the adjustment times of the service sending rate sent to the intermediate frequency interface unit to be at least 1 time according to the bandwidth value, and the numerical value of the bandwidth is adjusted each time to be less than or equal to a preset threshold value.
3. The packet microwave device with link adjustment information feedback function according to claim 2, characterized in that: the threshold was 512 kb.
4. The packet microwave device with link adjustment information feedback function according to claim 1, wherein: and the intermediate frequency interface unit adopts an ASIC chip.
5. The packet microwave device with link adjustment information feedback function according to claim 1, wherein: the 1 set of register elements comprises 4 registers of 32 bits bandwidth.
6. The packet microwave device with link adjustment information feedback function according to any one of claims 1 to 5, wherein: after the service processing module obtains the bandwidth value transmitted by the intermediate frequency interface unit to the corresponding register component, if the reserved value in the register component is the same as the current bandwidth value, the service received by the service interface unit is directly sent to the intermediate frequency interface unit.
7. The packet microwave device with link adjustment information feedback function according to any one of claims 1 to 5, wherein: the interfaces of the service interface unit comprise an STM1 interface, an E1 interface, an FE interface, a GE interface and an XGE interface.
8. The packet microwave device with link adjustment information feedback function according to any one of claims 1 to 5, wherein: the power supply unit is used for: the power supply module supplies power to the service processing module, the clock processing module, the control unit, the fan unit, the auxiliary interface unit, all the intermediate frequency interface units and the service interface unit;
the fan unit is used for: heat is dissipated for the service processing module, the clock processing module, the control unit, the power supply unit, the auxiliary interface unit, all the intermediate frequency interface units and the service interface unit;
the control unit is used for: and the control service processing module, the clock processing module, the power supply unit, the fan unit, the auxiliary interface unit, all the intermediate frequency interface units and the service interface unit work.
9. The packet microwave device with link adjustment information feedback function according to any one of claims 1 to 5, wherein: the auxiliary interface unit is configured to: an auxiliary interface is provided for the grouped microwave devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021644.2A CN106850139B (en) | 2017-01-12 | 2017-01-12 | Grouping microwave equipment with link adjustment information feedback function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021644.2A CN106850139B (en) | 2017-01-12 | 2017-01-12 | Grouping microwave equipment with link adjustment information feedback function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106850139A CN106850139A (en) | 2017-06-13 |
| CN106850139B true CN106850139B (en) | 2020-07-07 |
Family
ID=59124273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710021644.2A Active CN106850139B (en) | 2017-01-12 | 2017-01-12 | Grouping microwave equipment with link adjustment information feedback function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106850139B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478476A (en) * | 2008-12-08 | 2009-07-08 | 华为技术有限公司 | Transmission processing method, apparatus and system for packet microwave data |
| CN101631387A (en) * | 2009-08-24 | 2010-01-20 | 华为技术有限公司 | Service dispatching method, service dispatching device and service dispatching system of microwave link |
| CN101631363A (en) * | 2009-08-21 | 2010-01-20 | 华为技术有限公司 | Method for notifying bandwidth information, method for processing service, network node and communication system |
| CN102231653A (en) * | 2009-12-31 | 2011-11-02 | 华为技术有限公司 | Microwave access method and multi-service transmission equipment |
| CN104038956A (en) * | 2014-06-03 | 2014-09-10 | 烽火通信科技股份有限公司 | Board card type packet microwave device and microwave link 1+1HSB protection method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8194556B2 (en) * | 2007-12-10 | 2012-06-05 | Motorola Mobility, Inc. | Latency-aware adaptive bandwidth request mechanism for real-time communication in WiMAX |
-
2017
- 2017-01-12 CN CN201710021644.2A patent/CN106850139B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478476A (en) * | 2008-12-08 | 2009-07-08 | 华为技术有限公司 | Transmission processing method, apparatus and system for packet microwave data |
| CN101631363A (en) * | 2009-08-21 | 2010-01-20 | 华为技术有限公司 | Method for notifying bandwidth information, method for processing service, network node and communication system |
| CN101631387A (en) * | 2009-08-24 | 2010-01-20 | 华为技术有限公司 | Service dispatching method, service dispatching device and service dispatching system of microwave link |
| CN102231653A (en) * | 2009-12-31 | 2011-11-02 | 华为技术有限公司 | Microwave access method and multi-service transmission equipment |
| CN104038956A (en) * | 2014-06-03 | 2014-09-10 | 烽火通信科技股份有限公司 | Board card type packet microwave device and microwave link 1+1HSB protection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106850139A (en) | 2017-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7583664B2 (en) | Techniques for transmitting and receiving traffic over advanced switching compatible switch fabrics | |
| EP3531643A1 (en) | Method, network device, and system for transmitting wireless fronthaul interface signal | |
| CN110278065B (en) | Method and equipment for compensating time delay | |
| US8416770B2 (en) | Universal service transport transitional encoding | |
| US11683739B2 (en) | Radio link aggregation | |
| EP3606158A1 (en) | Buffer status reporting method, ue, buffer status report processing method, and network-side device | |
| EP3618374A1 (en) | Data transmission methods, devices, apparatuses, and system | |
| CN109257139B (en) | Method and device for transmitting and receiving physical layer data | |
| CN101873192A (en) | Method and device for transmitting constant-rate data stream | |
| CN105610727A (en) | Network data transmission method and device | |
| US20060140226A1 (en) | Techniques for processing traffic transmitted over advanced switching compatible switch fabrics | |
| US7305013B2 (en) | Handling traffic in a synchronous communication network | |
| CN106850139B (en) | Grouping microwave equipment with link adjustment information feedback function | |
| US9210674B2 (en) | Base station timing control using synchronous transport signals | |
| CN101019356A (en) | Pause frame reconciliation in end-to-end and local flow control for ETHERNET over SONET | |
| US7590130B2 (en) | Communications system with first and second scan tables | |
| CA2804418C (en) | Method, system and device for transmitting synchronous digital hierarchy signals through microwave | |
| US7558260B2 (en) | Byte-timeslot-synchronous, dynamically switched multi-source-node data transport bus system | |
| CN101635668A (en) | Method and system for transmitting and controlling ethernet data | |
| WO2004109979A1 (en) | A method for carrying out service-transmitting in a synchronous digital hierarchy network | |
| CN110460405A (en) | Service signal transmission method and device | |
| CN103763057B (en) | Method and device for conversion between EOP and EOS | |
| WO2022000234A1 (en) | Communication method and related apparatus | |
| WO2020107298A1 (en) | Device and method for universal service transport transitional encoding | |
| US7313151B2 (en) | Extendible asynchronous and synchronous interface bus for broadband access |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |