CN101217342A - A transmission method of physical broadcasting channel aerial information - Google Patents
A transmission method of physical broadcasting channel aerial information Download PDFInfo
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- CN101217342A CN101217342A CNA2008100015393A CN200810001539A CN101217342A CN 101217342 A CN101217342 A CN 101217342A CN A2008100015393 A CNA2008100015393 A CN A2008100015393A CN 200810001539 A CN200810001539 A CN 200810001539A CN 101217342 A CN101217342 A CN 101217342A
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Abstract
The invention discloses a method for transmitting the antenna information of a physical broadcast channel and is applied in a wireless communication system, and according to the transmission antenna number of the physical broadcast channel and which time the current sending belongs to in a period, a sending end selects a corresponding scrambling sequence for implementing the scrambling of original information bits, generates a cyclical redundancy check (CRC) code, and sends out the CRC code together with the data; wherein, two antennas and four antennas are corresponding to different scrambling sequences. The method of the invention can well detect the antenna information of the physical broadcast channel and is characterized in that the two situations with two antennas and four antennas are well differentiated, thus ensuring the decoding performance of other physical channels.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to a kind of transmission method of physical broadcasting channel aerial information.
Background technology
As shown in Figure 1, be LTE (Long Term Evolution) system frame structure schematic diagram.In the LTE system, the radio frames of a 10ms is divided into two fields, and it is the 0.5ms time slot that each field is divided into 10 length, and two time slots are formed the subframe that length is 1ms, comprise 5 subframes in the field.
As shown in Figure 2, the schematic diagram that sends for LTE system physical broadcast channel.The transmission cycle of Physical Broadcast Channel is 40ms, and wherein, every 10ms Physical Broadcast Channel sends once, and in one-period, Physical Broadcast Channel sends identical information at every turn.For can accurate timing in one-period, stipulate in the LTE standard that send by four times of using different scrambling codes to distinguish in the one-period, the user is by the method for blind Detecting, know that current transmission is which time in the one-period sends.
Stipulate in the LTE standard, antenna that Physical Broadcast Channel can adopt or two antennas or the emission of four antennas, at present, the method of the blind Detecting that adopts according to the send mode of an antenna, two antennas, four antennas, is decoded respectively, by cyclic redundancy check (CRC) (Cyclic Redundancy Check, CRC) judge whether decoding is correct,, know the antenna amount that current Physical Broadcast Channel sends with this.
But, owing to can adopt SFBC (space-frequency coding) diversity mode during two antennas, can adopt SFBC diversity+FSTD (frequency domain switching diversity) mode during four antennas, make the differentiation of two antennas and four antennas become difficult, if can not obtain aerial information, the data decode performance of other down physical channel will become very poor.
Summary of the invention
The invention provides a kind of transmission method of physical broadcasting channel aerial information, to separate the problem that must not accurately obtain aerial information.
In order to solve the problems of the technologies described above, the invention provides a kind of transmission method of physical broadcasting channel aerial information, be applied to wireless communication system,
Transmitting terminal according to which time that the quantity of Physical Broadcast Channel transmitting antenna and current transmission belong in the one-period sends, select corresponding scrambler sequence that original information bits is carried out scrambling, produce cyclic redundancy check (CRC) code CRC then, send with data, wherein, two antennas are different with the scrambler sequence of four antenna correspondences.
The method of the invention, wherein,
Receiving terminal adopts decoding process and this antenna amount corresponding scrambler sequence corresponding with antenna amount to decode according to the situation of different Physical Broadcast Channel number of transmission antennas successively, carry out CRC check after the decoding, pass through as CRC check, the number of transmission antennas of then judging the transmitting physical broadcast channel is the pairing Physical Broadcast Channel number of transmission antennas of current decoding process and scrambler sequence, otherwise selects other decoding process or scrambler sequence to continue decoding.
The method of the invention, wherein, the quantity of described Physical Broadcast Channel transmitting antenna is the combination in any in the following quantity: an antenna, two antennas, four antennas.
The method of the invention, wherein, the scrambler sequence of a described antenna correspondence and two antennas, four antennas are identical or different.
The method of the invention, wherein, the quantity of described scrambler sequence is 8, wherein 4 corresponding to an antenna and two antennas, in addition 4 corresponding to four antennas, perhaps wherein 4 corresponding to an antenna and four antennas, 4 corresponding to two antennas in addition, and in 4 scrambler sequence of same antenna quantity correspondence, each scrambler sequence is corresponding to the different transmission number of times in the one-period.
The method of the invention, wherein,
The first decoding process of described receiving terminal according to an antenna correspondence, select its corresponding scrambler sequence to decode respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is an antenna, know that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously, otherwise, again according to the decoding process of two antenna correspondences, select its corresponding scrambler sequence to decode respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is two antennas, know that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously, otherwise, according to the decoding process of four antenna correspondences, select its corresponding scrambler sequence to decode respectively and CRC check, again if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is four antennas, knows that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously.
The method of the invention, wherein, the quantity of described scrambler sequence is 12, one antenna, two antennas and four antennas correspond respectively to wherein mutually different 4 scrambler sequence, and in 4 scrambler sequence of same antenna quantity correspondence, each scrambler sequence is corresponding to the different transmission number of times in the one-period.
The method of the invention, wherein,
The first decoding process of described receiving terminal according to an antenna correspondence, select 4 scrambler sequence of its correspondence to decode respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is an antenna, know that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously, otherwise, again according to the decoding process of two antenna correspondences, select 4 scrambler sequence of its correspondence to decode respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is two antennas, know that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously, otherwise, according to the decoding process of four antenna correspondences, select 4 scrambler sequence of its correspondence to decode respectively and CRC check, again if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is four antennas, knows that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously.
The method of the invention, wherein,
The data that described transmitting terminal and CRC sign indicating number send together are the information bit after original information bits or the scrambling, and this situation of the information bit after the scrambling then also need be carried out descrambling after the receiving terminal reception in this way.
The method of the invention, wherein, described wireless communication system is a Long Term Evolution LTE system.
By the method for the invention, can well detect the aerial information of Physical Broadcast Channel, particularly can well distinguish two antennas and two kinds of situations of four antennas, thereby guarantee the decoding performance of other physical channel.
Description of drawings
Fig. 1 is a LTE system frame structure schematic diagram;
Fig. 2 is the schematic diagram that LTE system physical broadcast channel sends.
Embodiment
Mentality of designing of the present invention is as follows: at transmitting terminal, which time that belongs in the one-period according to the quantity of Physical Broadcast Channel transmitting antenna and current transmission sends, select different scrambler sequence to carry out scrambling, produce cyclic redundancy check (CRC) code, send with data.The different scrambling codes sequence that should adopt under two antennas and the four antenna situations wherein.
Above-mentioned different scrambler sequence has been carried all or part of aerial information, and the timing information that four times send in the one-period.The quantity of this scrambler sequence can be 8, perhaps 12 or more.Described whole aerial information is an antenna, two antennas, four antennas; Described part aerial information is a kind of or two kinds of information in an antenna, two antennas, four antennas.
Above-mentioned each scrambler sequence correspondence the timing information that four times send in a kind of aerial information and the one-period, the information that scrambler can carry is not limited to aerial information, also can be out of Memory.This scrambler sequence is a pseudo random sequence, is produced by m sequence or Gold sequence.
Below in conjunction with embodiment technical scheme of the present invention is described in detail.
First embodiment:
At transmitting terminal,
At transmitting terminal, which time that belongs in the one-period according to the quantity of Physical Broadcast Channel transmitting antenna and current transmission sends, select corresponding scrambler sequence that original information bits is carried out scrambling, produce CRC, (data described in the present embodiment are original information bits with data, but also can be the information bit after the scrambling, this situation of the information bit after the scrambling needs descrambling after then receiving terminal receives in this way) send together.Wherein two antennas are different with the scrambler sequence of four antenna correspondences.
Different scrambler sequence implications is as follows: utilizes the m sequence to produce 12 scrambler sequence, and defines the #1 that is numbered of scrambler sequence, and #2 ... #11, #12, wherein, #1, #2, #3, #4 represent an antenna transmission, and per four sequences correspond respectively to four transmission in one-period; #5, #6, #7, #8 represent two antenna transmission, and per four sequences correspond respectively to four transmission in one-period; #9, #10, #11, #12 represent four antenna transmission, and per four sequences correspond respectively to four transmission in one-period.
At receiving terminal,
Situation according to different Physical Broadcast Channel number of transmission antennas adopts decoding process and the corresponding scrambler sequence corresponding with antenna amount to decode successively, carry out CRC check after the decoding, pass through as CRC check, the number of transmission antennas of then judging the transmitting physical broadcast channel is the pairing Physical Broadcast Channel number of transmission antennas of current decoding process and scrambler sequence.
At first, decoding process according to an antenna correspondence, selection is numbered #1, #2, #3, the scrambler sequence of #4 is decoded respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is an antenna, simultaneously, know that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period, otherwise, according to the decoding process of two antenna correspondences, select to be numbered #5, #6 again, #7, the scrambler sequence of #8 is decoded respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is two antennas, simultaneously, know that according to the scrambler sequence of correspondence numbering current transmission is which time in the one-period sends, otherwise, again according to the decoding process of four antenna correspondences, selection is numbered #9, #10, #11, the scrambler sequence of #12 is decoded respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is four antennas, simultaneously, knows that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period.
Second embodiment:
At transmitting terminal,
At transmitting terminal, which time that belongs in the one-period according to the quantity of Physical Broadcast Channel transmitting antenna and current transmission sends, and selects corresponding scrambler sequence that original information bits is carried out scrambling, produces CRC, sends with data.Wherein the scrambler sequence of two antennas and four antenna correspondences is different, and an antenna is identical with the scrambler sequence of two antenna correspondences.
Different scrambler sequence implications is as follows: utilizes the m sequence to produce 8 scrambler sequence, and defines the #1 that is numbered of scrambler sequence, and #2 ... #7, #8, wherein, #1, #2, #3, #4 represent an antenna and two antenna transmission, and per four sequences correspond respectively to four transmission in one-period; #5, #6, #7, #8 represent four antenna transmission, and per four sequences correspond respectively to four transmission in one-period.
At receiving terminal,
Situation according to different Physical Broadcast Channel number of transmission antennas adopts decoding process and the corresponding scrambler sequence corresponding with antenna amount to decode successively, carry out CRC check after the decoding, pass through as CRC check, the number of transmission antennas of then judging the transmitting physical broadcast channel is the pairing Physical Broadcast Channel number of transmission antennas of current decoding process and scrambler sequence.
At first, decoding process according to an antenna correspondence, selection is numbered #1, #2, #3, the scrambler sequence of #4 is decoded respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is an antenna, simultaneously, know that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period, otherwise, according to the decoding process of two antenna correspondences, select to be numbered #1, #2 again, #3, the scrambler sequence of #4 is decoded respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is two antennas, simultaneously, know that according to the scrambler sequence of correspondence numbering current transmission is which time in the one-period sends, otherwise, again according to the decoding process of four antenna correspondences, selection is numbered #5, #6, #7, the scrambler sequence of #8 is decoded respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is four antennas, simultaneously, knows that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (10)
1. the transmission method of a physical broadcasting channel aerial information is applied to wireless communication system, it is characterized in that,
Transmitting terminal according to which time that the quantity of Physical Broadcast Channel transmitting antenna and current transmission belong in the one-period sends, select corresponding scrambler sequence that original information bits is carried out scrambling, produce cyclic redundancy check (CRC) code CRC then, send with data, wherein, two antennas are different with the scrambler sequence of four antenna correspondences.
2. transmission method as claimed in claim 1 is characterized in that,
Receiving terminal adopts decoding process and this antenna amount corresponding scrambler sequence corresponding with antenna amount to decode according to the situation of different Physical Broadcast Channel number of transmission antennas successively, carry out CRC check after the decoding, pass through as CRC check, the number of transmission antennas of then judging the transmitting physical broadcast channel is the pairing Physical Broadcast Channel number of transmission antennas of current decoding process and scrambler sequence, otherwise selects other decoding process or scrambler sequence to continue decoding.
3. method as claimed in claim 1 or 2 is characterized in that the quantity of described Physical Broadcast Channel transmitting antenna is the combination in any in the following quantity: an antenna, two antennas, four antennas.
4. as method as described in the claim 3, it is characterized in that the scrambler sequence of a described antenna correspondence and two antennas, four antennas are identical or different.
5. method according to claim 1, it is characterized in that, the quantity of described scrambler sequence is 8, wherein 4 corresponding to an antenna and two antennas, in addition 4 corresponding to four antennas, perhaps wherein 4 corresponding to an antenna and four antennas, 4 corresponding to two antennas in addition, and in 4 scrambler sequence of same antenna quantity correspondence, each scrambler sequence is corresponding to the different transmission number of times in the one-period.
6. transmission method as claimed in claim 5 is characterized in that,
The first decoding process of described receiving terminal according to an antenna correspondence, select its corresponding scrambler sequence to decode respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is an antenna, know that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously, otherwise, again according to the decoding process of two antenna correspondences, select its corresponding scrambler sequence to decode respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is two antennas, know that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously, otherwise, according to the decoding process of four antenna correspondences, select its corresponding scrambler sequence to decode respectively and CRC check, again if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is four antennas, knows that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously.
7. method according to claim 1, it is characterized in that, the quantity of described scrambler sequence is 12, one antenna, two antennas and four antennas correspond respectively to wherein mutually different 4 scrambler sequence, and in 4 scrambler sequence of same antenna quantity correspondence, each scrambler sequence is corresponding to the different transmission number of times in the one-period.
8. transmission method as claimed in claim 7 is characterized in that,
The first decoding process of described receiving terminal according to an antenna correspondence, select 4 scrambler sequence of its correspondence to decode respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is an antenna, know that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously, otherwise, again according to the decoding process of two antenna correspondences, select 4 scrambler sequence of its correspondence to decode respectively and CRC check, if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is two antennas, know that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously, otherwise, according to the decoding process of four antenna correspondences, select 4 scrambler sequence of its correspondence to decode respectively and CRC check, again if CRC check is passed through, the number of transmit antennas of then representing Physical Broadcast Channel is four antennas, knows that according to the scrambler sequence numbering of correspondence current transmission is which time transmission in the one-period simultaneously.
9. transmission method as claimed in claim 1 is characterized in that,
The data that described transmitting terminal and CRC sign indicating number send together are the information bit after original information bits or the scrambling, and this situation of the information bit after the scrambling then also need be carried out descrambling after the receiving terminal reception in this way.
10. method according to claim 1 is characterized in that described wireless communication system is a Long Term Evolution LTE system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200810001539 CN101217342B (en) | 2008-01-08 | 2008-01-08 | A transmission method of physical broadcasting channel aerial information |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810001539 CN101217342B (en) | 2008-01-08 | 2008-01-08 | A transmission method of physical broadcasting channel aerial information |
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| CN101217342A true CN101217342A (en) | 2008-07-09 |
| CN101217342B CN101217342B (en) | 2013-04-24 |
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| CN 200810001539 Expired - Fee Related CN101217342B (en) | 2008-01-08 | 2008-01-08 | A transmission method of physical broadcasting channel aerial information |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801014A (en) * | 2010-03-05 | 2010-08-11 | 上海华为技术有限公司 | Method and device for detecting physical broadcast channel |
| WO2010105402A1 (en) * | 2009-03-16 | 2010-09-23 | 华为技术有限公司 | Method, base station, user equipment and network system for information sending and receiving |
| CN102076018A (en) * | 2010-12-22 | 2011-05-25 | 上海华为技术有限公司 | Method and device for detecting physical broadcast channel |
| CN104104466A (en) * | 2013-04-03 | 2014-10-15 | 华为技术有限公司 | Broadcast channel transmitting and receiving method, system and equipment |
| CN106549695A (en) * | 2015-09-21 | 2017-03-29 | 北京信威通信技术股份有限公司 | The sending method and device of detection reference signal |
| CN115347983A (en) * | 2017-05-05 | 2022-11-15 | 中兴通讯股份有限公司 | Information transmission method and device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594424B (en) * | 2012-02-14 | 2015-02-04 | 中国科学院计算技术研究所 | Method and device for detecting number of transmitting antennae of base station of long term evolution (LTE) system |
-
2008
- 2008-01-08 CN CN 200810001539 patent/CN101217342B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105402A1 (en) * | 2009-03-16 | 2010-09-23 | 华为技术有限公司 | Method, base station, user equipment and network system for information sending and receiving |
| CN101801014A (en) * | 2010-03-05 | 2010-08-11 | 上海华为技术有限公司 | Method and device for detecting physical broadcast channel |
| CN102076018A (en) * | 2010-12-22 | 2011-05-25 | 上海华为技术有限公司 | Method and device for detecting physical broadcast channel |
| CN102076018B (en) * | 2010-12-22 | 2013-08-28 | 上海华为技术有限公司 | Method and device for detecting physical broadcast channel |
| CN104104466A (en) * | 2013-04-03 | 2014-10-15 | 华为技术有限公司 | Broadcast channel transmitting and receiving method, system and equipment |
| CN106549695A (en) * | 2015-09-21 | 2017-03-29 | 北京信威通信技术股份有限公司 | The sending method and device of detection reference signal |
| CN115347983A (en) * | 2017-05-05 | 2022-11-15 | 中兴通讯股份有限公司 | Information transmission method and device |
| CN115347983B (en) * | 2017-05-05 | 2024-03-19 | 中兴通讯股份有限公司 | Information transmission method and device |
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| CN101217342B (en) | 2013-04-24 |
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