CN106612555B - A kind of sending method of the System Frame Number of communication system determines method and apparatus - Google Patents
A kind of sending method of the System Frame Number of communication system determines method and apparatus Download PDFInfo
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- CN106612555B CN106612555B CN201510697739.7A CN201510697739A CN106612555B CN 106612555 B CN106612555 B CN 106612555B CN 201510697739 A CN201510697739 A CN 201510697739A CN 106612555 B CN106612555 B CN 106612555B
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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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- Computer Networks & Wireless Communication (AREA)
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- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
This application discloses a kind of sending method of the System Frame Number of communication system, in this method, synchronous subband structure is with 24 frames for a cycle period；In each synchronous subband structure, synchronization signal is sent on the frame that frame number mould 2 is 0；It sends MIB1 message, MIB2 message and MIB3 message in order on the frame that frame number mould 2 is 1, and 4 repetitions is carried out to MIB1 message, MIB2 message and MIB3 message respectively and are sent；When sending MIB1 message, MIB2 message and MIB3 message, according toSystem for filling frame number SFN's is 12 high.Disclosed herein as well is a kind of determination method of the System Frame Number of communication system and corresponding to the equipment of the above method.Using technical solution disclosed in the present application, the System Frame Number that only can be assured that present frame by transmitting high position SFN it is synchronous with base station system time to complete terminal, while saving bit resources shared by System Frame Number information in MIB message.
Description
Technical field
This application involves mobile communication technology field, in particular to a kind of sending method of the System Frame Number of communication system,
Determine method and apparatus.
Background technique
Existing system synchronous subband structure is with 8 frames for a cycle period.Synchronization signal (the auxiliary synchronization of primary synchronization signal PSS/
Signal SSS) it is sent on the frame that frame number mould 2 is 0, broadcast message (Master Information Block: MIB message) is sent out on the frame that frame number mould 2 is 1
It send.Fig. 1 is the transferring content schematic diagram of existing broadcast channel.
According to the sending method of MIB message, selects different initial positions to carry out 4 repetitions after the scrambling of MIB message and sends,
Therefore it is which time is sent that MIB message can be distinguished according to scrambling code information.
Physical layer parses low-order system frame number (SFN's) method particularly includes: determines that MIB message is n-th according to scrambling code information
Secondary to repeat to send, n=0~3, then low level SFN (3bit)=n*2+1 of MIB, can determine other systems in this way on the basis of MIB
System frame number.
Current System Frame Number SFN includes 16 bits, only need to carry high-order SFN (13bit) in MIB message.UE is receiving MIB
After message, according to:
SFN (16bit)=SFN (13bit) * 8+ physical layer parsing low level SFN (3bit)
It is calculated, can be obtained the System Frame Number of actual use.
For the flexible configuration for realizing network, current broadcast channel cannot be met the requirements, it is therefore desirable to increase mib information
Type, so as to cause broadcast channel change, in this way, existing System Frame Number sends and determine that method is no longer applicable in.
Summary of the invention
This application provides a kind of sending method of the System Frame Number of communication system, method and apparatus is determined, to determine
The System Frame Number of present frame.
This application provides a kind of sending methods of the System Frame Number of communication system, comprising:
Synchronous subband structure is with 24 frames for a cycle period；
In each synchronous subband structure, synchronization signal is sent on the frame that frame number mould 2 is 0；The frame for being 1 in frame number mould 2
On send MIB1 message, MIB2 message and MIB3 message in order, and to MIB1 message, MIB2 message and MIB3 message respectively into
4 repetitions of row are sent；
When sending MIB1 message, MIB2 message and MIB3 message, according toSystem for filling frame number SFN
It is 12 high.
Preferably, passing through the Master Information Block MIB type of 1 bit in the MIB1 message, MIB2 message and MIB3 message
Indicating bit indicates whether corresponding message is MIB1 message.
Present invention also provides a kind of sending devices of the System Frame Number of communication system, comprising: cycle period determining module
And sending module, in which:
The cycle period determining module, for being that a cycle period determines synchronous subband structure with 24 frames；
The sending module, for it is each with 24 frames be a cycle period synchronous subband structure in, in frame number mould 2
To send synchronization signal on 0 frame；MIB1 message, MIB2 message and MIB3 is sent in order on the frame that frame number mould 2 is 1 to disappear
Breath, and 4 repetitions are carried out to MIB1 message, MIB2 message and MIB3 message respectively and are sent, and are disappeared in transmission MIB1 message, MIB2
When breath and MIB3 message, according toSystem for filling frame number SFN's is 12 high.
Preferably, the sending module, is also used in the MIB1 message, MIB2 message and MIB3 message through 1 ratio
Special MIB type indicating bit indicates whether corresponding message is MIB1 message.
Present invention also provides a kind of determination methods of the System Frame Number of communication system, comprising:
Receive broadcast message；
MIB1 message is found according to the MIB type indicating bit in broadcast message, is believed further according to the scrambling code of the MIB1 message
Breath determines the repetition transmission times n of the MIB1 message；
Low 5 SFN of the MIB1 message are calculated according to n*6+1.
Preferably, this method further include: calculate the MIB1 message according to low 5 SFN of 12 SFN*24+ of SFN=high
SFN, wherein high 12 SFN are obtained from the MIB1 message.
Present invention also provides a kind of System Frame Number of communication system locking equipments really, comprising: receiving module, type of message
Determining module and parsing module, in which:
The receiving module, for receiving broadcast message；
The type of message determining module, for finding MIB1 message according to the MIB type indicating bit in broadcast message, and
For determining the repetition transmission times n of the MIB1 message according to the scrambling code information of the MIB1 message；
The parsing module, for calculating low 5 SFN of the MIB1 message according to n*6+1.
Preferably, the parsing module, is also used to calculate the MIB1 according to low 5 SFN of 12 SFN*24+ of SFN=high
The SFN of message, wherein high 12 SFN are obtained from the MIB1 message.
As seen from the above technical solution, System Frame Number provided by the present application sends and determines method, and physical layer is according to improvement
Broadcast channel MIB message feature, parse low level SFN (5bit), so only by transmission high position SFN (12bit) can be true
It is synchronous with base station system time to complete terminal, while saving System Frame Number information in MIB message for the System Frame Number of settled previous frame
Shared bit resources.
Detailed description of the invention
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；
Fig. 3 is the composed structure schematic diagram of the sending device of the System Frame Number of one preferred communication system of the application；
Fig. 4 is the composed structure schematic diagram of the System Frame Number locking equipment really of one preferred communication system of the application.
Specific embodiment
It is right hereinafter, referring to the drawings and the embodiments, for the objects, technical solutions and advantages of the application are more clearly understood
The application is described in further detail.
For the flexible configuration for realizing network, present inventor proposes increase in another application for a patent for invention
The scheme of mib information type introduces the mib information of these three types of MIB1, MIB2 and MIB3.On this basis, the application mentions
A kind of System Frame Number sending method of communication system and accordingly determining method out.
Fig. 2 is the transferring content schematic diagram of broadcast channel of the present invention.Referring to fig. 2, synchronous subband structure of the invention is with 24
Frame is a cycle period.In each cycle period, synchronization signal is sent on the frame that frame number mould 2 is 0, MIB1 message,
MIB2 message and MIB3 message carry out 4 repetitions in order on the frame that frame number mould 2 is 1 and send.
Broadcast channel retains 1bit indicating bit respectively in MIB1, MIB2 and MIB3 and is used to indicate broadcast message in the present invention
Type, that is, distinguishing the message is MIB1 message or other types of MIB message, hereinafter referred to as MIB type indicating bit.
MIB type indicating bit in physical layer parsing broadcast message, so that it is determined that the message parsed is that MIB1 message or MIB2 disappear
Breath or MIB3 message.
Like the prior art, MIB message is also to select different initial positions to carry out 4 repetitions after scrambling in the present invention
It sends, therefore, it is which time is sent in a cycle period that MIB message can be distinguished according to scrambling code information.
The method of physical layer parsing low level SFN are as follows: determine that MIB message is that n-th repeats to send according to scrambling code information, n=0
~3, the position of MIB1 message is determined according to the MIB type indicating bit in MIB message, then the low level SFN of frame where MIB1 message
(5bit)=n*6+1 can determine other System Frame Numbers in this way on the basis of MIB1 message.Such as, the low level SFN (5bit) of MIB2
Low level SFN (5bit)=n*6+5 of=n*6+3, MIB3." low level SFN (5bit) " and " low 5 SFN " both expression ways
Expressed meaning is identical.
By above description it is found that physical layer, which can parse, determines low 5 No. SFN, it may be assumed that 0~23, it only needs to transmit in this way
High-order No. SFN.Synchronous subband structure is with 24 frames for a cycle period in the application, and 24 between 24 powers and the 5 of 2 times
Between side, existing SFN length is 16bit, to keep existing SFN length not influenced by the application is improved on MIB message,
The application transmits 12 No. SFN high in MIB1 message.What eNB was filled in when sending 1 message of MIBUE is when calculating the SFN of actual use after receiving MIB message, according to SFN
The low level SFN (5bit) of (16bit)=SFN (12bit) * 24+ physical layer parsing is calculated.Disappear for MIB2 message and MIB3
Breath also fills in corresponding high 12 SFN in the same manner.In this way, No. SFN in business procedure still can use
16bit is not influenced by MIB message.
Corresponding to the above method, present invention also provides corresponding equipment.
Fig. 3 is the composed structure schematic diagram of the sending device of the System Frame Number of one preferred communication system of the application.Shown in Fig. 3
It include: cycle period determining module and sending module in equipment, in which:
The cycle period determining module, for being that a cycle period determines synchronous subband structure with 24 frames；
The sending module, for it is each with 24 frames be a cycle period synchronous subband structure in, in frame number mould 2
To send synchronization signal on 0 frame；MIB1 message, MIB2 message and MIB3 is sent in order on the frame that frame number mould 2 is 1 to disappear
Breath, and 4 repetitions are carried out to MIB1 message, MIB2 message and MIB3 message respectively and are sent, and are disappeared in transmission MIB1 message, MIB2
When breath and MIB3 message, according toSystem for filling frame number SFN's is 12 high.
Preferably, the sending module, is also used in 1 message of MIB, MIB2 message and MIB3 message through 1 ratio
Special MIB type indicating bit indicates whether corresponding message is MIB1 message.
Fig. 4 is the composed structure schematic diagram of the System Frame Number locking equipment really of one preferred communication system of the application.Shown in Fig. 4
It include: receiving module, type of message determining module and parsing module in equipment, in which:
The receiving module, for receiving broadcast message；
The type of message determining module, for finding MIB1 message according to the MIB type indicating bit in broadcast message, and
For determining the repetition transmission times n of the MIB1 message according to the scrambling code information of the MIB1 message；
The parsing module, for calculating low 5 SFN of the MIB1 message according to n*6+1.
Preferably, the parsing module, is also used to calculate the MIB1 according to low 5 SFN of 12 SFN*24+ of SFN=high
The SFN of message, wherein high 12 SFN are obtained from the MIB1 message.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (6)
1. a kind of sending method of the System Frame Number of communication system characterized by comprising
Synchronous subband structure is with 24 frames for a cycle period；
In each synchronous subband structure, synchronization signal is sent on the frame that frame number mould 2 is 0；It is pressed on the frame that frame number mould 2 is 1
Sequence sends MIB1 message, MIB2 message and MIB3 message, and carries out 4 respectively to MIB1 message, MIB2 message and MIB3 message
It is secondary to repeat to send；
When sending MIB1 message, MIB2 message and MIB3 message, according toThe height of system for filling frame number SFN
12；
Wherein, pass through the Master Information Block MIB type indicating bit of 1 bit in the MIB1 message, MIB2 message and MIB3 message
Indicate whether corresponding message is MIB1 message.
2. a kind of sending device of the System Frame Number of communication system characterized by comprising cycle period determining module and transmission
Module, in which:
The cycle period determining module, for being that a cycle period determines synchronous subband structure with 24 frames；
The sending module, for being 0 in frame number mould 2 in each synchronous subband structure for being a cycle period with 24 frames
Frame on send synchronization signal；MIB1 message, MIB2 message and MIB3 message are sent in order on the frame that frame number mould 2 is 1, and
To MIB1 message, MIB2 message and MIB3 message carry out respectively 4 times repetition send, and send MIB1 message, MIB2 message and
When MIB3 message, according toSystem for filling frame number SFN's is 12 high, in the MIB1 message, MIB2 message
Indicate whether corresponding message is MIB1 message by the MIB type indicating bit of 1 bit in MIB3 message.
3. a kind of determination method of the System Frame Number of communication system characterized by comprising
Receive broadcast message；
MIB1 message is found according to the MIB type indicating bit in broadcast message, it is true further according to the scrambling code information of the MIB1 message
The repetition transmission times n of the fixed MIB1 message；
Low 5 SFN of the MIB1 message are calculated according to n*6+1.
4. according to the method described in claim 3, it is characterized in that, this method further include:
The SFN of the MIB1 message is calculated according to low 5 SFN of 12 SFN*24+ of SFN=high, wherein high 12 SFN are from described
It is obtained in MIB1 message.
5. a kind of System Frame Number of communication system locking equipment really characterized by comprising receiving module, type of message determine
Module and parsing module, in which:
The receiving module, for receiving broadcast message；
The type of message determining module for finding MIB1 message according to the MIB type indicating bit in broadcast message, and is used for
The repetition transmission times n of the MIB1 message is determined according to the scrambling code information of the MIB1 message；
The parsing module, for calculating low 5 SFN of the MIB1 message according to n*6+1.
6. equipment according to claim 5, it is characterised in that:
The parsing module is also used to calculate the SFN of the MIB1 message according to low 5 SFN of 12 SFN*24+ of SFN=high,
In, high 12 SFN are obtained from the MIB1 message.
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| Application Number | Priority Date | Filing Date | Title |
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN113273137A (en) * | 2019-01-17 | 2021-08-17 | 华为技术有限公司 | Method and device for processing system message |
| CN111478784B (en) * | 2019-01-24 | 2022-03-11 | 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 |
| EP4120762A4 (en) * | 2020-03-31 | 2023-04-26 | Huawei Technologies Co., Ltd. | Communication method and apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2259452B1 (en) * | 2008-03-25 | 2013-09-11 | ZTE Corporation | A system information transmitting and receiving method |
| CN103517211A (en) * | 2012-06-21 | 2014-01-15 | 电信科学技术研究院 | Method for transmitting system broadcast information and equipment thereof |
| CN104869614A (en) * | 2014-02-26 | 2015-08-26 | 普天信息技术有限公司 | Processing method for frequency point information of current sector |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2259452B1 (en) * | 2008-03-25 | 2013-09-11 | ZTE Corporation | A system information transmitting and receiving method |
| CN103517211A (en) * | 2012-06-21 | 2014-01-15 | 电信科学技术研究院 | Method for transmitting system broadcast information and equipment thereof |
| CN104869614A (en) * | 2014-02-26 | 2015-08-26 | 普天信息技术有限公司 | Processing method for frequency point information of current sector |
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Granted publication date: 20191022 Termination date: 20211023 |