CN106612555A - Communication system frame number transmission method, determination method and device - Google Patents
Communication system frame number transmission method, determination method and device Download PDFInfo
- Publication number
- CN106612555A CN106612555A CN201510697739.7A CN201510697739A CN106612555A CN 106612555 A CN106612555 A CN 106612555A CN 201510697739 A CN201510697739 A CN 201510697739A CN 106612555 A CN106612555 A CN 106612555A
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- message
- mib1
- sfn
- frame number
- mib3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a communication system frame number transmission method. In the method, synchronous subband structures use 24 frames as a cycle; in each synchronous subband structure, synchronous signals are transmitted on a frame with a frame number module 2 to be 0; an MIB1 message, an MIB2 message and an MIB3 message are sequentially transmitted on a frame with a frame number module 2 to be 1, and four times of repeated transmission are carried out on the MIB1 message, the MIB2 message and the MIB3 message respectively; when the MIB1 message, the MIB2 message and the MIB3 message are transmitted, the high 12 bits of a system frame number (SFN) are filled according to SFN=LSFN/12 . The invention also discloses a communication system frame number determination method and devices corresponding to the above methods. When the technical scheme of the invention is applied, the system frame number of the current frame can be determined by only transmitting the high-bit SFN, time synchronization between the terminal and the base station is completed, and the bit resources occupied by system frame number information in the MIB message can be saved.
Description
Technical field
The application is related to mobile communication technology field, more particularly to a kind of sender of the System Frame Number of communication system
Method, determine method and apparatus.
Background technology
Existing system synchronization sub-band structure is with 8 frames as a cycle period.Synchronizing signal (master sync signal PSS/
Auxiliary synchronous signals SSS) send on frame of the frame number mould 2 for 0, broadcast (Master Information Block：MIB message)
Send on frame of the frame number mould 2 for 1.Fig. 1 is the transferring content schematic diagram of existing broadcast channel.
According to the sending method of MIB message, select after the scrambling of MIB message different original positions carry out 4 times it is heavy
Recurrence is sent, therefore can distinguish which time transmission is MIB message be according to scrambling code information.
Physical layer parses the concrete grammar of low-order system frame number (SFN)：Determine that MIB disappears according to scrambling code information
Breath is that n-th repeats to send, n=0～3, then low level SFN (the 3bit)=n*2+1 of MIB, so with MIB
On the basis of can determine that other System Frame Numbers.
Current System Frame Number SFN includes 16 bits, only need to carry high-order SFN (13bit) in MIB message.
UE after MIB message is received, according to：
The low level SFN (3bit) of SFN (16bit)=SFN (13bit) * 8+ physical layers parsing
Calculated, you can obtain actually used System Frame Number.
To realize the flexible configuration of network, current broadcast channel can not meet requirement, it is therefore desirable to increase MIB
The type of information, so as to cause broadcast channel to change, so, existing System Frame Number sends and determines method not
It is suitable for again.
The content of the invention
This application provides a kind of sending method of the System Frame Number of communication system, determine method and apparatus, so as to
Determine the System Frame Number of present frame.
This application provides a kind of sending method of the System Frame Number of communication system, including：
Synchronous sub-band structure is with 24 frames as a cycle period；
In each synchronous sub-band structure, synchronizing signal is sent on frame of the frame number mould 2 for 0；It is 1 in frame number mould 2
Frame on send MIB1 message, MIB2 message and MIB3 message in order, and MIB1 message, MIB2 are disappeared
Breath and MIB3 message carry out 4 repetitions respectively and send；
When MIB1 message, MIB2 message and MIB3 message is sent, according toSystem for filling frame
Number SFN's is high 12.
Preferably, by the Master Information Block of 1 bit in the MIB1 message, MIB2 message and MIB3 message
MIB types indicating bit indicates whether corresponding message is MIB1 message.
Present invention also provides a kind of transmission equipment of the System Frame Number of communication system, including：Cycle period determining module
And sending module, wherein：
The cycle period determining module, for determining synchronous sub-band structure by a cycle period of 24 frames；
The sending module, in being the synchronous sub-band structure of a cycle period with 24 frames at each, in frame number
Mould 2 for 0 frame on send synchronizing signal；MIB1 message, MIB2 are sent in order on frame of the frame number mould 2 for 1
Message and MIB3 message, and carry out 4 repetition transmissions to MIB1 message, MIB2 message and MIB3 message respectively,
And when MIB1 message, MIB2 message and MIB3 message is sent, according toSystem for filling frame number
SFN's is high 12.
Preferably, the sending module, is additionally operable in the MIB1 message, MIB2 message and MIB3 message
Indicate whether corresponding message is MIB1 message by the MIB types indicating bit of 1 bit.
Present invention also provides a kind of determination method of the System Frame Number of communication system, including：
Receive broadcast；
MIB1 message is found according to the MIB types indicating bit in broadcast, further according to disturbing for the MIB1 message
Code information determines repetition transmission times n of the MIB1 message；
Low 5 SFN of the MIB1 message are calculated according to n*6+1.
Preferably, the method also includes：The MIB1 is calculated according to low 5 SFN of high 12 SFN*24+ of SFN=
The SFN of message, wherein, high 12 SFN are obtained from the MIB1 message.
Present invention also provides a kind of System Frame Number of communication system locking equipment really, including：Receiver module, message class
Type determining module and parsing module, wherein：
The receiver module, for receiving broadcast；
The type of message determining module, for finding MIB1 message according to the MIB types indicating bit in broadcast,
And for repetition transmission times n of the MIB1 message is determined according to the scrambling code information of the MIB1 message；
The parsing module, for low 5 SFN of the MIB1 message are calculated according to n*6+1.
Preferably, the parsing module, is additionally operable to according to the low 5 SFN meters of high 12 SFN*24+ of SFN=
The SFN of the MIB1 message is calculated, wherein, high 12 SFN are obtained from the MIB1 message.
As seen from the above technical solution, the application provide System Frame Number send and determine method, physical layer according to
Improved broadcast channel MIB message features, parsing low level SFN (5bit), so only by transmitting high position SFN
(12bit) System Frame Number of present frame is assured that, it is synchronous with base station system time to complete terminal, while
Bit resources in saving MIB message shared by System Frame Number information.
Description of the drawings
Fig. 1 is the transferring content schematic diagram of existing broadcast channel；
Fig. 2 is the transferring content schematic diagram of broadcast channel of the present invention；
Composition structural representations of the Fig. 3 for the transmission equipment of the System Frame Number of one preferred communication system of the application；
Composition structural representations of the Fig. 4 for the System Frame Number locking equipment really of one preferred communication system of the application.
Specific embodiment
Purpose, technical scheme and advantage to make the application becomes more apparent, and develop simultaneously enforcement referring to the drawings
Example, is described in further detail to the application.
To realize the flexible configuration of network, present inventor proposes increasing in another application for a patent for invention
Plus the scheme of mib information type, introduce the mib information of these three types of MIB1, MIB2 and MIB3.
On the basis of this, the application proposes a kind of System Frame Number sending method of communication system and determines method accordingly.
Fig. 2 is the transferring content schematic diagram of broadcast channel of the present invention.Referring to Fig. 2, the synchronous sub-band structure of the present invention
With 24 frames as a cycle period.In each cycle period, synchronizing signal is sent out on frame of the frame number mould 2 for 0
Send, MIB1 message, MIB2 message and MIB3 message are carried out 4 times on frame of the frame number mould 2 for 1 in order
Repeat to send.
In the present invention broadcast channel retain in MIB1, MIB2 and MIB3 respectively 1bit indicating bits for indicate broadcast
The type of message, that is, it is MIB1 message or other types of MIB message to distinguish the message, hereinafter referred to as
MIB type indicating bits.MIB type indicating bits in physical layer parsing broadcast, so that it is determined that the message for being parsed
It is MIB1 message, or MIB2 message or MIB3 message.
Like the prior art, the present invention in MIB message be also scrambling after select different original positions carry out 4 times it is heavy
Recurrence is sent, therefore, it is which time sends in a cycle period that can distinguish MIB message according to scrambling code information.
Physical layer parses the method for low level SFN：Determine that MIB message is that n-th repeats to send according to scrambling code information,
N=0～3, determine the position of MIB1 message according to the MIB type indicating bits in MIB message, then MIB1 message institute
In low level SFN (the 5bit)=n*6+1 of frame, other System Frame Numbers are so can determine that on the basis of MIB1 message.
Such as, low level SFN (the 5bit)=n*6+3 of MIB2, low level SFN (the 5bit)=n*6+5 of MIB3." low level SFN
(5bit) it is " identical with the implication expressed by " low 5 SFN " both expression waies.
By above description, physical layer can parse determination it is low 5 No. SFN, i.e.,：0～23, so
High-order No. SFN need to be transmitted only.In the application, synchronous sub-band structure is with 24 frames as a cycle period, and 24
Between 24 powers and 25 powers, existing SFN length is 16bit, is to keep existing SFN
Number length is not affected by the application is improved on MIB message, and the application transmits high 12 in MIB1 message
No. SFN.What eNB was filled in when 1 message of MIB is sentUE is being received
When actually used SFN is calculated after MIB message, according to：SFN (16bit)=SFN (12bit) * 24+ things
The low level SFN (5bit) of reason layer parsing is calculated.For MIB2 message with MIB3 message also according to identical
Method fill in corresponding high 12 SFN.Thus, No. SFN in business procedure still can adopt 16bit,
Do not affected by MIB message.
Corresponding to said method, present invention also provides corresponding equipment.
Composition structural representations of the Fig. 3 for the transmission equipment of the System Frame Number of one preferred communication system of the application.Fig. 3
Shown equipment includes：Cycle period determining module and sending module, wherein：
The cycle period determining module, for determining synchronous sub-band structure by a cycle period of 24 frames；
The sending module, in being the synchronous sub-band structure of a cycle period with 24 frames at each, in frame
Number mould 2 is to send synchronizing signal on 0 frame；Frame number mould 2 for 1 frame on send in order MIB1 message,
MIB2 message and MIB3 message, and 4 are carried out respectively to MIB1 message, MIB2 message and MIB3 message
It is secondary to repeat to send, and when MIB1 message, MIB2 message and MIB3 message is sent, according to
System for filling frame number SFN's is high 12.
Preferably, the sending module, is additionally operable in 1 message of the MIB, MIB2 message and MIB3 message
In indicate whether corresponding message is MIB1 message by the MIB types indicating bit of 1 bit.
Composition structural representations of the Fig. 4 for the System Frame Number locking equipment really of one preferred communication system of the application.Fig. 4
Shown equipment includes：Receiver module, type of message determining module and parsing module, wherein：
The receiver module, for receiving broadcast；
The type of message determining module, for finding MIB1 message according to the MIB types indicating bit in broadcast,
And for repetition transmission times n of the MIB1 message is determined according to the scrambling code information of the MIB1 message；
The parsing module, for low 5 SFN of the MIB1 message are calculated according to n*6+1.
Preferably, the parsing module, is additionally operable to calculate according to low 5 SFN of high 12 SFN*24+ of SFN=
The SFN of the MIB1 message, wherein, high 12 SFN are obtained from the MIB1 message.
The preferred embodiment of the application is the foregoing is only, it is not to limit the application, all in the application
Spirit and principle within, any modification, equivalent substitution and improvements done etc., should be included in the application guarantor
Within the scope of shield.
Claims (8)
1. a kind of sending method of the System Frame Number of communication system, it is characterised in that include：
Synchronous sub-band structure is with 24 frames as a cycle period；
In each synchronous sub-band structure, synchronizing signal is sent on frame of the frame number mould 2 for 0；It is 1 in frame number mould 2
Frame on send MIB1 message, MIB2 message and MIB3 message in order, and MIB1 message, MIB2 are disappeared
Breath and MIB3 message carry out 4 repetitions respectively and send；
When MIB1 message, MIB2 message and MIB3 message is sent, according toSystem for filling frame
Number SFN's is high 12.
2. method according to claim 1, it is characterised in that：
By the Master Information Block MIB types of 1 bit in the MIB1 message, MIB2 message and MIB3 message
Indicating bit indicates whether corresponding message is MIB1 message.
3. a kind of transmission equipment of the System Frame Number of communication system, it is characterised in that include：Cycle period determines mould
Block and sending module, wherein：
The cycle period determining module, for determining synchronous sub-band structure by a cycle period of 24 frames；
The sending module, in being the synchronous sub-band structure of a cycle period with 24 frames at each, in frame number
Mould 2 for 0 frame on send synchronizing signal；MIB1 message, MIB2 are sent in order on frame of the frame number mould 2 for 1
Message and MIB3 message, and carry out 4 repetition transmissions to MIB1 message, MIB2 message and MIB3 message respectively,
And when MIB1 message, MIB2 message and MIB3 message is sent, according toSystem for filling frame number
SFN's is high 12.
4. equipment according to claim 3, it is characterised in that：
The sending module, is additionally operable in the MIB1 message, MIB2 message and MIB3 message by 1 ratio
Special MIB types indicating bit indicates whether corresponding message is MIB1 message.
5. a kind of determination method of the System Frame Number of communication system, it is characterised in that include：
Receive broadcast；
MIB1 message is found according to the MIB types indicating bit in broadcast, further according to disturbing for the MIB1 message
Code information determines repetition transmission times n of the MIB1 message；
Low 5 SFN of the MIB1 message are calculated according to n*6+1.
6. method according to claim 5, it is characterised in that the method also includes：
The SFN of the MIB1 message is calculated according to low 5 SFN of high 12 SFN*24+ of SFN=, wherein,
High 12 SFN are obtained from the MIB1 message.
7. a kind of System Frame Number of communication system locking equipment really, it is characterised in that include：Receiver module, message
Determination type module and parsing module, wherein：
The receiver module, for receiving broadcast；
The type of message determining module, for finding MIB1 message according to the MIB types indicating bit in broadcast,
And for repetition transmission times n of the MIB1 message is determined according to the scrambling code information of the MIB1 message；
The parsing module, for low 5 SFN of the MIB1 message are calculated according to n*6+1.
8. equipment according to claim 7, it is characterised in that：
The parsing module, is additionally operable to calculate the MIB1 according to low 5 SFN of high 12 SFN*24+ of SFN=
The SFN of message, wherein, high 12 SFN are obtained from the MIB1 message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510697739.7A CN106612555B (en) | 2015-10-23 | 2015-10-23 | A kind of sending method of the System Frame Number of communication system determines method and apparatus |
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| CN201510697739.7A CN106612555B (en) | 2015-10-23 | 2015-10-23 | A kind of sending method of the System Frame Number of communication system determines method and apparatus |
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| CN106612555A true CN106612555A (en) | 2017-05-03 |
| CN106612555B CN106612555B (en) | 2019-10-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201479A1 (en) * | 2017-05-05 | 2018-11-08 | 富士通株式会社 | Information indication method, information detection method and device therefor, and communication system |
| WO2020147087A1 (en) * | 2019-01-17 | 2020-07-23 | 华为技术有限公司 | System message processing method and device |
| CN111478784A (en) * | 2019-01-24 | 2020-07-31 | 华为技术有限公司 | Method and device for determining configuration resources |
| CN112351484A (en) * | 2019-08-08 | 2021-02-09 | 普天信息技术有限公司 | Downlink synchronization method, network side equipment and mobile terminal |
| CN112689970A (en) * | 2020-03-31 | 2021-04-20 | 华为技术有限公司 | Communication method and device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201479A1 (en) * | 2017-05-05 | 2018-11-08 | 富士通株式会社 | Information indication method, information detection method and device therefor, and communication system |
| WO2020147087A1 (en) * | 2019-01-17 | 2020-07-23 | 华为技术有限公司 | System message processing method and device |
| CN113273137A (en) * | 2019-01-17 | 2021-08-17 | 华为技术有限公司 | Method and device for processing system message |
| CN111478784A (en) * | 2019-01-24 | 2020-07-31 | 华为技术有限公司 | Method and device for determining configuration resources |
| CN112351484A (en) * | 2019-08-08 | 2021-02-09 | 普天信息技术有限公司 | Downlink synchronization method, network side equipment and mobile terminal |
| CN112689970A (en) * | 2020-03-31 | 2021-04-20 | 华为技术有限公司 | Communication method and device |
| WO2021196044A1 (en) * | 2020-03-31 | 2021-10-07 | 华为技术有限公司 | Communication method and apparatus |
| CN112689970B (en) * | 2020-03-31 | 2022-05-17 | 华为技术有限公司 | Communication method and device |
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| CN106612555B (en) | 2019-10-22 |
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