CN106658547A - Data package detection method based on McWiLL protocol and physical layer device - Google Patents
Data package detection method based on McWiLL protocol and physical layer device Download PDFInfo
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- CN106658547A CN106658547A CN201510726140.1A CN201510726140A CN106658547A CN 106658547 A CN106658547 A CN 106658547A CN 201510726140 A CN201510726140 A CN 201510726140A CN 106658547 A CN106658547 A CN 106658547A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention discloses a data package detection method based on an McWiLL protocol and a physical layer device. The data package detection method comprises steps that the physical layer device is used to acquire a channel load data package according to configuration information issued by a data link layer device; the physical layer device is used for the effective detection of the channel load data package, and the effective channel load data package is transmitted to the data link layer device for processing. The physical layer is used for the effective detection of the channel load data package, and only the effective channel load data package is transmitted to the data link layer device for the processing, and therefore data transmission quantity between the physical layer device and the data link layer device is reduced, and data transmission efficiency is improved.
Description
Technical field
It is the present embodiments relate to mobile communication technology field more particularly to a kind of based on McWiLL agreements
Data packet detection method and physical layer equipment.
Background technology
Existing based on multi-carrier-wave wireless information local loop (Multi-Carrier Wireless Information
Local Loop, McWiLL) agreement GSM in, especially protocol processes of terminal installation
In, employ dual processor core framework, for example reduced instruction set machine (Advanced RISC Machine,
ARM) and Digital Signal Processing (Digital Signal Processing, DSP) device, layering carries out communication protocols
The process of view.A kind of common division of labor form is physical layer (referred to herein as L1 layers) by DSP process, data
Link layer (referred to herein as L2 layers)/Internet (referred to herein as L3 layers) is by ARM process, wherein Jie of L2 layers
The packet detection of matter access control (Media Access Control, MAC) layer is performed by ARM.
The packet detection process of detailed process is as follows, and L1 layers parse link processing data path
Channel load directly writes memory by direct memory access (DMA) (Direct Memory Access, DMA),
The processor of L2 layers reads one by one channel load from memory, whether effectively to detect the channel load, such as
Fruit confirms the channel load effectively then again by DMA write restoring reservoir, while detection statistics are carried out,
Record testing result, treats that all data detect to finish and is again transmitted valid data.
And the channel load that L1 layers are parsed increases with the increase of idle port communication bandwidth, for example,
During 1MHz frequency bandwidths, channel is fully loaded with about 3Mbits；During 5MHz frequency bandwidths, channel is fully loaded about
15Mbits；During 20MHz frequency bandwidths, channel is fully loaded with about 65Mbits；If adding multiple-input and multiple-output
(Multiple Input Multiple Output, MIMO) technology or space division multiple access (Space Division Multiple
Access, SDMA) technology, channel capacity can be bigger, and Mbits up to a hundred also occur.If will count in a large number
Packet detection is carried out according to L2 layers are all passed through, data transfer burden is not only increased, and needs to take
Substantial amounts of memory is ensureing to have sufficiently large memory space.
The content of the invention
The embodiment of the present invention provides a kind of data packet detection method and physical layer based on McWiLL agreements and sets
It is standby, it is possible to increase data transmission efficiency.
In a first aspect, embodiments providing a kind of packet detection side based on McWiLL agreements
Method, including：
Physical layer equipment obtains channel load packet according to the configuration information that data link layer device is issued；
The physical layer equipment carries out validation checking to the channel load packet, by effective channel carrier
Lotus packet sends to the data link layer device and is processed.
Further, the physical layer equipment carries out validation checking to the channel load packet includes：
The physical layer equipment detects whether the form of the channel load packet meets communication protocol regulation
Data packet format, if meeting, it is determined that the channel load packet effectively, if not meeting, it is determined that
The channel load packet is invalid.
Further, the physical layer equipment detects whether the form of the channel load packet meets communication
The data packet format that agreement specifies includes：
The physical layer equipment detects the media intervention key-course MAC header of the channel load packet, meter
Calculate the CRC crc value of the MAC header；
The physical layer equipment determines whether the form of the channel load packet accords with according to the crc value
The data packet format that communication protocol specifies.
Further, after determining that the channel load packet is effective, also include：
The physical layer equipment detects whether the data segment in the channel load packet is complete, if completely,
The channel load packet is then determined effectively, if imperfect, it is determined that the channel load packet is invalid.
Further, the physical layer equipment obtains channel according to the configuration information that data link layer device is issued
Load data bag includes：
The physical layer equipment carries out following at least one or several physical layers to the radio frequency sampled data being input into
Process and obtain channel load packet：Symbol level removes direct current, correcting frequency deviation, FFT, many
Antenna reception processing, carrier wave demapping, the channel demapping of code block level, channel estimation, Channel Detection, letter
Road is decoded and descrambled.
Further, the channel load packet is uplink traffic channel data bag or downlink traffic number
According to bag.
Second aspect, the embodiment of the present invention also provides a kind of physical layer equipment, including：
Packet acquisition module, the configuration information for being issued according to data link layer device obtains channel load
Packet；
Packet detection module, for carrying out validation checking to the channel load packet, will be effective
Channel load packet sends to the data link layer device and is processed.
Further, the packet detection module includes：
Data packet format detector unit, for detecting whether the form of the channel load packet meets communication
The data packet format that agreement specifies, if meeting, it is determined that the channel load packet is effective, if not meeting,
Then determine that the channel load packet is invalid.
Further, the data packet format detector unit specifically for：
The media intervention key-course MAC header of the channel load packet is detected, the MAC header is calculated
CRC crc value, determine that the form of the channel load packet is according to the crc value
It is no to meet the data packet format that communication protocol specifies.
Further, the packet detection module also includes：
The detection of packet data section is used, for determining the channel carrier in the data packet format detector unit
After lotus packet is effective, detect whether the data segment in the channel load packet is complete, if completely,
The channel load packet is then determined effectively, if imperfect, it is determined that the channel load packet is invalid.
Further, the packet acquisition module specifically for：
Radio frequency sampled data to being input into carries out following at least one or several physical layer process and obtains channel carrier
Lotus packet：Symbol level go direct current, correcting frequency deviation, FFT, multiple antennas reception processing,
Carrier wave demapping, the channel demapping of code block level, channel estimation, Channel Detection, channel decoding and descrambling.
Further, the channel load packet is uplink traffic channel data bag or downlink traffic number
According to bag.
The third aspect, the embodiment of the present invention also provides a kind of terminal, including the physics described in above-mentioned second aspect
Layer equipment.
Fourth aspect, the embodiment of the present invention also provides a kind of base station, including：Including described in above-mentioned second aspect
Physical layer equipment.
The embodiment of the present invention is obtained by physical layer equipment according to the configuration information that data link layer device is issued
Channel load packet, and validation checking is carried out to the channel load packet, only by effective channel
Load data bag sends to the data link layer device and is processed, and reduces physical layer equipment and Data-Link
Volume of transmitted data between the floor equipment of road, so as to improve data transmission efficiency.
Description of the drawings
Fig. 1 is the flow process of the data packet detection method based on McWiLL agreements that the embodiment of the present invention one is provided
Schematic diagram；
Fig. 2 is the flow process of the data packet detection method based on McWiLL agreements that the embodiment of the present invention two is provided
Schematic diagram；
Fig. 3 is the flow process of the data packet detection method based on McWiLL agreements that the embodiment of the present invention three is provided
Schematic diagram；
Fig. 4 is the structural representation of the physical layer equipment that the embodiment of the present invention four is provided；
Fig. 5 is the packet detection side for realization based on McWiLL agreements that the embodiment of the present invention five is provided
The system frame structure schematic diagram of method.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in further detail.It is understood that this
The described specific embodiment in place is used only for explaining the present invention, rather than limitation of the invention.Need explanation
, for the ease of description, part related to the present invention rather than entire infrastructure are illustrate only in accompanying drawing.
The executive agent of the data packet detection method based on McWiLL agreements provided in an embodiment of the present invention, can
For physical layer equipment provided in an embodiment of the present invention, terminal or base station, the physical layer equipment can adopt hardware
Or software is realized.
Embodiment one
Fig. 1 is the flow process of the data packet detection method based on McWiLL agreements that the embodiment of the present invention one is provided
Schematic diagram, as shown in figure 1, specifically including：
Step 11, physical layer equipment obtain channel charge number according to the configuration information that data link layer device is issued
According to bag；
Wherein, the configuration information for data link layer device issue for indicating that the physical layer equipment is obtained
What is taken meets pre-conditioned packet.For example, what is included in the configuration information is pre-conditioned to receive
The time period of packet or the classification of packet of reception etc..
Wherein, the physical layer equipment be located at open system interconnection (Open System Interconnect,
OSI) the bottom of reference model, it region be directly facing the physical medium i.e. channel for actually undertaking data transfer.
The data link layer device is located on the physical layer equipment in OSI Reference Model, the physical layer
Equipment provides data, services for the data link layer device.
Wherein, the channel load packet mainly includes uplink traffic channel data bag and downlink traffic
Packet.Specifically, for the physical layer equipment positioned at end side, for receiving the descending chain of base station transmission
Road business data packet, the channel load packet is then Downlink Traffic data bag；For positioned at base station
The physical layer equipment of side, for the uplink traffic channel data bag that receiving terminal sends, the channel charge number
According to Bao Zewei uplink traffic channel data bags.
Step 12, the physical layer equipment carry out validation checking to the channel load packet, will be effective
Channel load packet send to the data link layer device and processed.
Specifically, due to being disturbed by the external world in data transmission procedure, packet is caused to occur wrong
By mistake, in order to reduce volume of transmitted data, the channel load packet that the physical layer equipment is received is had
The detection of effect property, detects effective channel load packet and invalid channel load packet, in addition, can
Record coherent detection information, including the quantity of effective channel carrier lotus packet, type of data packet or storage location
Etc. information, the effective channel load packet and its coherent detection information of detection are together sent to the number
Processed according to link layer device, the data link layer device can be quickly fixed according to the coherent detection information
Position channel load packet, so as to also reduce the data processing amount of data link layer device, improves Data-Link
The data-handling efficiency of road floor equipment, reduces the process power consumption of data link layer device.
The present embodiment obtains channel by physical layer equipment according to the configuration information that data link layer device is issued
Load data bag, and validation checking is carried out to the channel load packet, only by effective channel load
Packet sends to the data link layer device and is processed, and reduces physical layer equipment and data link layer
Volume of transmitted data between equipment, so as to improve data transmission efficiency.
Exemplary, on the basis of above-described embodiment, physical layer equipment described in the embodiment of the present invention is to institute
State the form that validation checking mainly includes to the channel load packet that carries out of channel load packet
Detection and/or data segment integrity detection, wherein including to the format detection of the channel load packet：
The physical layer equipment detects whether the form of the channel load packet meets communication protocol regulation
Data packet format, if meeting, it is determined that the channel load packet effectively, if not meeting, it is determined that
The channel load packet is invalid.
Exemplary, the physical layer equipment detects whether the form of the channel load packet meets communication
The data packet format that agreement specifies includes：
The physical layer equipment detects the MAC header of the channel load packet, calculates the MAC header
CRC crc value；
The physical layer equipment determines whether the form of the channel load packet accords with according to the crc value
The data packet format that communication protocol specifies.
Wherein, the detection to the data segment of the channel load packet includes：
The physical layer equipment detects whether the data segment in the channel load packet is complete, if completely,
The channel load packet is then determined effectively, if imperfect, it is determined that the channel load packet is invalid.
Specifically, can detect that program or hardware circuit carry out channel load packet by MAC layer packet
Correctness and integrity detection.The MAC header of the channel load packet is detected first, calculates described
The crc value of MAC header, judges whether the crc value of the MAC header is correct, if the MAC header
Crc value mistake, it is determined that the form of the channel load packet is not inconsistent the packet that communication protocol specifies
Form, then directly abandon the channel load packet or will be described according to the instruction of data link layer device
Channel load packet is stored in temporary storage area；If the crc value of the MAC header is correct, really
The data packet format that the format character communication protocol of the fixed channel load packet specifies, then further carried out
The integrity detection of the data segment in the channel load packet, specifically can be by calculating the data segment pair
The crc value answered, determines whether the corresponding crc value of the data segment is correct, if the data segment is corresponding
Crc value is correct, it is determined that data segment is complete in the channel load packet, that is, determine the channel
Load data is surrounded by effect, then effective channel load packet is sent to data link layer device
Reason, if the corresponding crc value mistake of the data segment, it is determined that data segment in the channel load packet
Be incomplete, that is, determine that the channel load packet is invalid, then it is invalid channel load packet is straight
Connect discarding or store to temporary storage area.
Exemplary, on the basis of above-described embodiment, the physical layer equipment is according to data link layer device
The configuration information for issuing obtains channel load packet to be included：
The physical layer equipment carries out following at least one or several physical layers to the radio frequency sampled data being input into
Process and obtain channel load packet：Symbol level removes direct current, correcting frequency deviation, FFT, many
Antenna reception processing, carrier wave demapping, the channel demapping of code block level, channel estimation, Channel Detection, letter
Road is decoded and descrambled.
Specifically, the physical layer equipment obtains phase according to the configuration information that the data link layer device is issued
After the physical layer data bag answered, also need to carry out physical layer data bag symbol level go direct current, correcting frequency deviation,
FFT, multiple antennas reception processing, carrier wave demapping, the channel demapping of code block level, channel
Estimation, Channel Detection, channel decoding and descrambling etc. are operated, so as to get channel load packet.
The configuration information that the various embodiments described above are issued again by physical layer equipment according to data link layer device
Channel load packet is obtained, and validation checking is carried out to the channel load packet, only will be effective
Channel load packet sends to the data link layer device and is processed, and reduces physical layer equipment and number
According to the volume of transmitted data between link layer device, so as to improve data transmission efficiency.
Embodiment two
Fig. 2 is the flow process of the data packet detection method based on McWiLL agreements that the embodiment of the present invention two is provided
Schematic diagram, the executive agent physical layer equipment of the present embodiment and data link layer device are described in end side
Channel load packet is Downlink Traffic data bag, as shown in Fig. 2 specifically including：
Step 21, physical layer equipment obtain downlink industry according to the configuration information that data link layer device is issued
Business packet, execution step 22；
Step 22, the physical layer equipment detect the MAC header of the Downlink Traffic data bag, calculate
The crc value of the MAC header, execution step 23；
Step 23, the physical layer equipment determine the Downlink Traffic data bag according to the crc value
Form whether meet the data packet format that communication protocol specifies；
If the physical layer equipment determines the format character communication protocol rule of the Downlink Traffic data bag
Fixed data packet format, then execution step 24, if the physical layer equipment determines the downlink traffic number
The data packet format that communication protocol specifies is not inconsistent it according to the form of bag, then execution step 27.
It is corresponding that step 24, the physical layer equipment calculate data segment in the Downlink Traffic data bag
Crc value, execution step 25；
Step 25, the physical layer equipment determine the data segment according to the corresponding crc value of the data segment
It is whether complete；
If the physical layer equipment determines that the data segment is complete, it is determined that the Downlink Traffic data bag
Effectively, execution step 26, if the physical layer equipment determines that the data segment is imperfect, it is determined that under described
Downlink traffic data bag is invalid, execution step 27.
Step 26, effective Downlink Traffic data bag is sent to the data link layer device
Reason；
Step 27, invalid Downlink Traffic data bag is abandoned or stored to temporary storage area.
The present embodiment is by being integrated in the physical layer equipment of end side according to the data link for being integrated in end side
The configuration information that layer equipment is issued obtains Downlink Traffic data bag, and to the Downlink Traffic data
Bag carries out validation checking, only sends effective Downlink Traffic data bag to the data link layer and sets
It is standby to be processed, the volume of transmitted data between physical layer equipment and data link layer device is reduced, so as to carry
High data transmission efficiency.
Embodiment three
Fig. 3 is the flow process of the data packet detection method based on McWiLL agreements that the embodiment of the present invention three is provided
Schematic diagram, the executive agent physical layer equipment of the present embodiment and data link layer device are described in base station side
Channel load packet is uplink traffic channel data bag, as shown in figure 3, specifically including：
Step 31, physical layer equipment obtain up-link industry according to the configuration information that data link layer device is issued
Business packet, execution step 32；
Step 32, the physical layer equipment detect the MAC header of the uplink traffic channel data bag, calculate
The crc value of the MAC header, execution step 33；
Step 33, the physical layer equipment determine the uplink traffic channel data bag according to the crc value
Form whether meet the data packet format that communication protocol specifies；
If the physical layer equipment determines the format character communication protocol rule of the uplink traffic channel data bag
Fixed data packet format, then execution step 34, if the physical layer equipment determines the uplink service number
The data packet format that communication protocol specifies is not inconsistent it according to the form of bag, then execution step 36.
Step 34, the physical layer equipment detect that data segment is corresponding in the uplink traffic channel data bag
Crc value, determines whether the data segment is complete according to the crc value；
If the physical layer equipment determines that the data segment is complete, it is determined that the uplink traffic channel data bag
Effectively, execution step 35, if the physical layer equipment determines that the data segment is imperfect, it is determined that on described
Downlink traffic data bag is invalid, execution step 36.
Step 35, effective uplink traffic channel data bag is sent to the data link layer device
Reason
Step 36, invalid uplink traffic channel data bag is abandoned or stored to temporary storage area.
The present embodiment is by being integrated in the physical layer equipment of base station side according to the data link for being integrated in base station side
The configuration information that layer equipment is issued obtains uplink traffic channel data bag, and to the uplink traffic channel data
Bag carries out validation checking, only sends effective uplink traffic channel data bag to the data link layer and sets
It is standby to be processed, the volume of transmitted data between physical layer equipment and data link layer device is reduced, so as to carry
High data transmission efficiency.
Example IV
Fig. 4 is the structural representation of the physical layer equipment that the embodiment of the present invention four is provided, as shown in figure 4, tool
Body includes：Packet acquisition module 41 and packet detection module 42；
The configuration information that the packet acquisition module 41 is used to be issued according to data link layer device obtains letter
Road load data bag；
The packet detection module 42 is used to carry out validation checking to the channel load packet, will
Effectively channel load packet sends to the data link layer device and is processed.
Physical layer equipment described in the embodiment of the present invention be used for perform described in the various embodiments described above based on
The data packet detection method of McWiLL agreements, its know-why is similar with the technique effect for producing, here not
Tire out again and state.
Exemplary, on the basis of above-described embodiment, the packet detection module 42 includes：Data
Bag format detecting unit 421；
The data packet format detector unit 421 is used to detect whether the form of the channel load packet accords with
The data packet format that communication protocol specifies, if meeting, it is determined that the channel load packet is effective, if
Do not meet, it is determined that the channel load packet is invalid.
Exemplary, on the basis of above-described embodiment, the data packet format detector unit 421 is specifically used
In the media intervention key-course MAC header for detecting the channel load packet, the MAC header is calculated
CRC crc value, whether the form for determining the channel load packet according to the crc value
Meet the data packet format that communication protocol specifies.
Exemplary, on the basis of above-described embodiment, the packet detection module 42 also includes：Number
According to bag data section detector unit 422；
The packet data section detector unit 422 is used to determine in the data packet format detector unit 421
After the channel load packet is effective, detect whether the data segment in the channel load packet is complete
It is whole, if completely, it is determined that the channel load packet is effective, if imperfect, it is determined that the channel carrier
Lotus packet is invalid.
Exemplary, on the basis of above-described embodiment, the packet acquisition module 41 is specifically for right
The radio frequency sampled data of input carries out following at least one or several physical layer process and obtains channel load data
Bag：Symbol level goes direct current, correcting frequency deviation, FFT, multiple antennas reception processing, carrier wave solution
Mapping, the channel demapping of code block level, channel estimation, Channel Detection, channel decoding and descrambling.
Exemplary, on the basis of above-described embodiment, the channel load packet is uplink service
Packet or Downlink Traffic data bag.
Physical layer equipment described in the various embodiments described above be equally used for perform the various embodiments described above described in based on
The data packet detection method of McWiLL agreements, its know-why is similar with the technique effect for producing, here not
Tire out again and state.
Embodiment five
Fig. 5 is the packet detection side for realization based on McWiLL agreements that the embodiment of the present invention five is provided
The system frame structure schematic diagram of method, the present embodiment is to realize based on the packet detection side of McWiLL agreements
The preferred implementation framework of method, as shown in figure 5, specifically including：Physical layer equipment 51, data link layer device
52 and memory 53；
Wherein, physical layer equipment 51 includes packet acquisition module 511, the and of packet detection module 512
Dma module 513.Specifically, when the physical layer equipment 51 is located at end side, then the packet
Acquisition module 511 is that down link data processes channel module, for processing down link data；When described
When physical layer equipment 51 is located at base station side, then the packet acquisition module 511 is at uplink data
Reason channel module, for processing uplink data.
Wherein, data link layer device 52 includes dma module 521.
Below by taking down link data as an example, describe the present embodiment in detail and realize process, when for up-link
During data, its processing procedure is similar with down link data, repeats no more here.Specifically, packet is obtained
Delivery block 511, the Data Physical layer for being mainly used in being responsible for downlink in wireless communication procedure is processed, and is obtained
Channel load packet, it is main to remove direct current, correcting frequency deviation, FFT, many including symbol level
Antenna reception processing, carrier wave demapping etc., the channel demapping of code block level, channel estimation, Channel Detection,
Channel decoding, descrambling etc., export channel load packet；
Packet detection module 512, being responsible for the channel load packet to obtaining carries out MAC layer packet
Detection.Specifically, the channel payload data stream of the output of packet acquisition module 511 detects mould by packet
Block 512, packet detection module 512 detects first the MAC of channel load packet in data word stream
Head, calculates the crc value of MAC header, if correctly starting to detect that the data segment of channel load packet is complete
Whole property, otherwise abandons, interpretation next one data word.The data segment integrality of channel load packet judges
Need to calculate the CRC of data segment according to the information of MAC header, it is if correctly, channel load packet is defeated
Go out and the channel load packet is write by memory 53, otherwise packet inspection by dma module 513
Module 512 is by the channel load data packet discarding or dumps to information scratchpad area (SPA) for survey, then return back to
The next data word of MAC header, continues to detect new legal MAC header.Above-mentioned flow process loop iteration
To having processed all input traffics.Follow-up data link layer device 52 is by dma module 521 from institute
State memory 53 to read channel load packet and be for further processing.
Embodiment six
The embodiment of the present invention also provides a kind of terminal, including the physical layer equipment described in the various embodiments described above, institute
Terminal is stated for processing the Downlink Traffic data bag of base station transmission.
Terminal described in the present embodiment be used to performing described in the various embodiments described above based on McWiLL agreements
Data packet detection method, its know-why is similar with the technique effect for producing, and is described again here.
Embodiment seven
The embodiment of the present invention also provides a kind of base station, including the physical layer equipment described in the various embodiments described above, institute
Stating base station is used for the uplink traffic channel data bag that processing terminal sends.
Base station described in the present embodiment be used to performing described in the various embodiments described above based on McWiLL agreements
Data packet detection method, its know-why is similar with the technique effect for producing, and is described again here.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.Those skilled in the art
It will be appreciated that the invention is not restricted to specific embodiment described here, can enter for a person skilled in the art
The various obvious changes of row, readjust and substitute without departing from protection scope of the present invention.Therefore, though
So the present invention is described in further detail by above example, but the present invention be not limited only to
Upper embodiment, without departing from the inventive concept, can also include more other Equivalent embodiments,
And the scope of the present invention is determined by scope of the appended claims.
Claims (14)
1. a kind of data packet detection method based on McWiLL agreements, it is characterised in that include：
Physical layer equipment obtains channel load packet according to the configuration information that data link layer device is issued；
The physical layer equipment carries out validation checking to the channel load packet, by effective channel carrier
Lotus packet sends to the data link layer device and is processed.
2. method according to claim 1, it is characterised in that the physical layer equipment is to the letter
Road load data bag carries out validation checking to be included：
The physical layer equipment detects whether the form of the channel load packet meets communication protocol regulation
Data packet format, if meeting, it is determined that the channel load packet effectively, if not meeting, it is determined that
The channel load packet is invalid.
3. method according to claim 2, it is characterised in that the physical layer equipment detection is described
Whether the form of channel load packet meets the data packet format that communication protocol specifies includes：
The physical layer equipment detects the media intervention key-course MAC header of the channel load packet, meter
Calculate the CRC crc value of the MAC header；
The physical layer equipment determines whether the form of the channel load packet accords with according to the crc value
The data packet format that communication protocol specifies.
4. according to the method in claim 2 or 3, it is characterised in that determine the channel charge number
According to being surrounded by after effect, also include：
The physical layer equipment detects whether the data segment in the channel load packet is complete, if completely,
The channel load packet is then determined effectively, if imperfect, it is determined that the channel load packet is invalid.
5. the method according to any one of claims 1 to 3, it is characterised in that the physical layer equipment
Obtaining channel load packet according to the configuration information that data link layer device is issued includes：
The physical layer equipment carries out following at least one or several physical layers to the radio frequency sampled data being input into
Process and obtain channel load packet：Symbol level removes direct current, correcting frequency deviation, FFT, many
Antenna reception processing, carrier wave demapping, the channel demapping of code block level, channel estimation, Channel Detection, letter
Road is decoded and descrambled.
6. the method according to any one of claims 1 to 3, it is characterised in that the channel charge number
It is uplink traffic channel data bag or Downlink Traffic data bag according to bag.
7. a kind of physical layer equipment, it is characterised in that include：
Packet acquisition module, the configuration information for being issued according to data link layer device obtains channel load
Packet；
Packet detection module, for carrying out validation checking to the channel load packet, will be effective
Channel load packet sends to the data link layer device and is processed.
8. equipment according to claim 7, it is characterised in that the packet detection module includes：
Data packet format detector unit, for detecting whether the form of the channel load packet meets communication
The data packet format that agreement specifies, if meeting, it is determined that the channel load packet is effective, if not meeting,
Then determine that the channel load packet is invalid.
9. equipment according to claim 8, it is characterised in that the data packet format detector unit
Specifically for：
The media intervention key-course MAC header of the channel load packet is detected, the MAC header is calculated
CRC crc value, determine that the form of the channel load packet is according to the crc value
It is no to meet the data packet format that communication protocol specifies.
10. equipment according to claim 8 or claim 9, it is characterised in that the packet detection module
Also include：
Packet data section detector unit, for determining the channel carrier in the data packet format detector unit
After lotus packet is effective, detect whether the data segment in the channel load packet is complete, if completely,
The channel load packet is then determined effectively, if imperfect, it is determined that the channel load packet is invalid.
11. equipment according to any one of claim 7～9, it is characterised in that the packet is obtained
Module specifically for：
Radio frequency sampled data to being input into carries out following at least one or several physical layer process and obtains channel carrier
Lotus packet：Symbol level go direct current, correcting frequency deviation, FFT, multiple antennas reception processing,
Carrier wave demapping, the channel demapping of code block level, channel estimation, Channel Detection, channel decoding and descrambling.
12. equipment according to any one of claim 7～9, it is characterised in that the channel charge number
It is uplink traffic channel data bag or Downlink Traffic data bag according to bag.
13. a kind of terminals, it is characterised in that set including the physical layer described in any one of claim 7～12
It is standby.
14. a kind of base stations, it is characterised in that set including the physical layer described in any one of claim 7～12
It is standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726140.1A CN106658547A (en) | 2015-10-30 | 2015-10-30 | Data package detection method based on McWiLL protocol and physical layer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN112672306A (en) * | 2021-01-13 | 2021-04-16 | 四川九通智路科技有限公司 | Structural object posture detection method |
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