CN101394222A - Method and device for highly effectively recognizing customer identifier - Google Patents
Method and device for highly effectively recognizing customer identifier Download PDFInfo
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- CN101394222A CN101394222A CNA200710122030XA CN200710122030A CN101394222A CN 101394222 A CN101394222 A CN 101394222A CN A200710122030X A CNA200710122030X A CN A200710122030XA CN 200710122030 A CN200710122030 A CN 200710122030A CN 101394222 A CN101394222 A CN 101394222A
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Abstract
The invention provides a method for recognizing the effective user identifier (EID) of a message. The method comprises the following steps: embedding the EID into scrambling codes and scrambling the original message at a sending terminal; and descrambling and then verifying the received message so as to identify the EID of the message at a receiving terminal. The method can reduce the cost of the EID in the conventional system, thereby serving the function of efficiently identifying the EID. Meanwhile, the invention further provides a device for efficiently identifying the EID, which comprises a sending unit and a receiving unit, wherein the sending unit comprises all the modules related to the generation of the EID, that is, coding modules and scrambling modules respectively; and the receiving unit comprises all the modules related to the receiving and the detecting of the EID, that is, descrambling modules and checking modules respectively.
Description
Technical field
The present invention relates to a kind of in communication system the method for pass-along message and device efficiently and accurately.
Background technology
In communication system, need be in shared or common signal channel, when certain user sends message, need carry user identifier (EID), after the user receives, the EID that receives and the EID of oneself are compared, if both are identical, can determine that then this information issues oneself, thereby receive successfully.
Traditional message format is seen Fig. 1, is divided into EID, the information content and three parts of verification content.Wherein the information content and verification content are to be produced through coding by raw information to be sent.
The method of traditional transmission and identification EID is to distribute certain bandwidth to transmit EID in message, and the user directly extracts the EID field that receives and discerns.Certainly will cause the waste of bandwidth like this, especially bandwidth ratio is nervous in radio communication, and the utilance of resource is had higher requirement, improves traditional message recognition methods so need badly.
The present invention proposes a kind of method and device of discerning user identifier efficiently, can save the shared bandwidth resources of EID effectively under the prerequisite that guarantees the correct identification marking symbol of user, thereby reduce overhead, improves efficiency of transmission.
Summary of the invention
The present invention proposes a kind of method of discerning user identifier efficiently, improves on traditional EID RM basis, makes it can save the bandwidth that EID takies, and can guarantee the correct identification of user identifier simultaneously again.This method is divided into transmission and receives two parts, is described respectively.
The improved sending method that the present invention proposes is as follows:
1, raw information is sent into encoder, produce the information content and verification content, encoder can be Cyclic Redundancy Check or other coded systems;
2, the input that EID is produced function as scrambler produces scrambler;
3, to the information content (or information adds the verification content) scrambling, form message to be sent.
Improved sending method flow process is seen Fig. 2.
Method of reseptance is as follows:
1, with user's oneself EID as the input that scrambler produces function, produce local scrambler;
2, use local scrambler, to the information content (or the information content adds the verification content) descrambling that receives;
3, the information content behind the descrambling is added the verification content and carry out verification, if verification is correctly then User Recognition EID is correct, otherwise mistake.
Improved method of reseptance flow process is seen Fig. 3.
The invention allows for a kind of device of efficient identification user identifier, this device comprises transmitting element and receiving element:
Transmitting element is installed in the transmitter, comprises
Coding module is used for raw information is produced origination message through coding;
Scrambling module is used for by the information and sending after origination message and the user identifier generation scrambling;
Receiving element is installed in the receiver, comprises
Descrambling module is used for by receiving the message after message and user identifier produce descrambling;
The verification module is used for determining message identifier by the message behind the descrambling.
Description of drawings
Fig. 1 is traditional message format that carries user identifier, and wherein EID takies certain bandwidth;
Fig. 2 is the improved flow chart that embeds user identifier in message;
Fig. 3 is the flow chart of improved identification user identifier;
Fig. 4 is a up access schematic diagram in the SCDMA BWA, have three terminals all to initiate request for building link to the base station among this figure, and the base station only allows terminal 1 connecting system, then allows to have embedded in the message EID of terminal 1 in descending link establishment;
Fig. 5 is that the link establishment of SCDMA BWA allows message format;
Fig. 6 is that the link establishment of SCDMA BWA allows message to send schematic diagram;
Fig. 7 is that the link establishment of SCDMA BWA allows the message parse schematic diagram.
Fig. 8 is a kind of structural representation of efficient identification user identifier device.
Embodiment
Be example with the SCDMA BWA below, describe embodiment.But method described herein is not limited only to the SCDMA system.
As shown in Figure 4, in the SCDMA BWA, have 3 terminals all to initiate request for building link, and the base station only allows terminal 1 connecting system, then allow to have embedded in the message EID of terminal 1 in descending link establishment to the base station.3 terminals under this base station are discerned respectively after having received the message that the base station issues, and have only the terminal 1 can to discern correctly, initiate to insert.
The implementation method of said process comprises:
1, the base station produces link establishment and allows message, and form is seen Fig. 5.
2, the embedding processing of EID is carried out in the base station.Concrete steps are as follows, visible Fig. 6:
2.1 EID and scrambler bit are carried out XOR, if the scrambler bitstream length then recycles EID greater than EID length, produce and the isometric scrambling code of message, promptly embedded EID information in this scrambler;
2.2 allow message to carry out scrambling to original link establishment, be about to scrambling code and message and carry out XOR, obtain link establishment to be sent and allow message.
3, terminal receives after this message, will adopt improved mechanism for resolving message.Concrete steps are as follows, visible Fig. 7:
3.1 terminal uses oneself EID and scrambler bit to carry out XOR, if the scrambler bitstream length then recycles EID greater than EID length, produces and the isometric local scrambling code of message;
3.2 use the scrambler that generates in 3.1, allow message to carry out descrambling to the link establishment that receives;
3.3 the message after the descrambling is carried out corresponding verification, if verification is correct, then terminal recognition EID is correct, otherwise mistake.
Fig. 8 has represented a kind of device of efficient identification user identifier, and this device is divided into transmitting element and two parts of receiving element.Comprising the module that all relevant user identifiers produce in the transmitting element, is respectively coding module and scrambling module.Comprise in the receiving element that all about the module that user identifier receives and detects, are respectively descrambling module and verification module.
Transmitting element is installed in the transmitter, comprises
Coding module is used for raw information is produced origination message through coding;
Scrambling module is used for by the information and sending after origination message and the user identifier generation scrambling;
Receiving element is installed in the receiver, comprises
Descrambling module is used for by receiving the message after message and user identifier produce descrambling;
The verification module is used for determining message identifier by the message behind the descrambling.
Claims (14)
1, a kind ofly need not clearly in message, send user identifier, but can determine the method for the user identifier of message efficiently, it is characterized in that, comprise:
A. raw information produces origination message through coding;
B. by the information and sending after origination message and the user identifier generation scrambling;
C. by receiving the message after message and user identifier produce descrambling;
D. determine message identifier by the message behind the descrambling.
2, method according to claim 1 is characterized in that, origination message is made up of information bit and check bit at least, and check bit is used for error detection.
3, method according to claim 1 is characterized in that, origination message and the scrambler sequence that embedded user identifier produce message after the scrambling by XOR.
4, method according to claim 1 is characterized in that, the scrambler sequence that receives message and embedded user identifier produces message behind the descrambling by XOR.
According to the described method in one of claim 3 or 4, it is characterized in that 5, XOR is applied at least a portion information bit.
6, according to the described method in one of claim 3 or 4, it is characterized in that,, produce scrambler sequence by random sequence and the sequence XOR that forms by the cascade of one or more same subscriber identifier.
7, method according to claim 2 is characterized in that, determines message identifier by the error detection to message behind the descrambling.
8, a kind of device of efficient identification user identifier, this device comprises transmitting element and receiving element:
Transmitting element is installed in the transmitter, comprises
Coding module is used for raw information is produced origination message through coding;
Scrambling module is used for by the information and sending after origination message and the user identifier generation scrambling;
Receiving element is installed in the receiver, comprises
Descrambling module is used for by receiving the message after message and user identifier produce descrambling;
The verification module is used for determining message identifier by the message behind the descrambling.
9, device according to claim 8 is characterized in that, described coding module is with the origination message coding, produces information bit and check bit, and check bit is used for error detection.
10, device according to claim 8 is characterized in that, described scrambling module is that origination message and the scrambler sequence that embedded user identifier are produced message after the scrambling by XOR.
11, device according to claim 8 is characterized in that, described descrambling module is the scrambler sequence that will receive message and embed user identifier produces message behind the descrambling by XOR.
According to the described device in one of claim 10 or 11, it is characterized in that 12, XOR is applied at least a portion information bit.
13, according to the described device in one of claim 10 or 11, it is characterized in that,, produce scrambler sequence by random sequence and the sequence XOR that forms by one or more identical EID cascades.
14, device according to claim 8 is characterized in that, described verification module is to determine message identifier by the error detection to message behind the descrambling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710122030XA CN101394222A (en) | 2007-09-20 | 2007-09-20 | Method and device for highly effectively recognizing customer identifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710122030XA CN101394222A (en) | 2007-09-20 | 2007-09-20 | Method and device for highly effectively recognizing customer identifier |
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| CN101394222A true CN101394222A (en) | 2009-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA200710122030XA Pending CN101394222A (en) | 2007-09-20 | 2007-09-20 | Method and device for highly effectively recognizing customer identifier |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873165A (en) * | 2010-03-05 | 2010-10-27 | 北京创毅视讯科技有限公司 | Downlink transmission method and device for cyber-physical system and base station in cyber-physical system |
| EP2984899A4 (en) * | 2013-05-02 | 2016-05-18 | Huawei Tech Co Ltd | System and method for transmission source identification |
| CN107493145A (en) * | 2017-08-30 | 2017-12-19 | 海信集团有限公司 | A kind of communication means and device of honeycomb Internet of Things |
| WO2018010139A1 (en) * | 2016-07-14 | 2018-01-18 | 富士通株式会社 | Group communication device and method, and communication system |
| CN109314602A (en) * | 2016-06-17 | 2019-02-05 | 华为技术有限公司 | Device and method for error detection coding |
| CN111837446A (en) * | 2018-07-25 | 2020-10-27 | Oppo广东移动通信有限公司 | Random access method and communication equipment |
-
2007
- 2007-09-20 CN CNA200710122030XA patent/CN101394222A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873165A (en) * | 2010-03-05 | 2010-10-27 | 北京创毅视讯科技有限公司 | Downlink transmission method and device for cyber-physical system and base station in cyber-physical system |
| EP2984899A4 (en) * | 2013-05-02 | 2016-05-18 | Huawei Tech Co Ltd | System and method for transmission source identification |
| US10390333B2 (en) | 2013-05-02 | 2019-08-20 | Huawei Technologies Co., Ltd. | System and method for transmission source identification |
| CN109314602A (en) * | 2016-06-17 | 2019-02-05 | 华为技术有限公司 | Device and method for error detection coding |
| US10917112B2 (en) | 2016-06-17 | 2021-02-09 | Huawei Technologies Co., Ltd. | Apparatus and methods for error detection coding |
| CN109314602B (en) * | 2016-06-17 | 2021-02-23 | 华为技术有限公司 | Apparatus and method for error detection coding |
| WO2018010139A1 (en) * | 2016-07-14 | 2018-01-18 | 富士通株式会社 | Group communication device and method, and communication system |
| CN109314992A (en) * | 2016-07-14 | 2019-02-05 | 富士通株式会社 | Group communication devices, method and communication system |
| US11284224B2 (en) | 2016-07-14 | 2022-03-22 | Fujitsu Limited | Group communication apparatus and method and communication system |
| CN107493145A (en) * | 2017-08-30 | 2017-12-19 | 海信集团有限公司 | A kind of communication means and device of honeycomb Internet of Things |
| CN111837446A (en) * | 2018-07-25 | 2020-10-27 | Oppo广东移动通信有限公司 | Random access method and communication equipment |
| CN111837446B (en) * | 2018-07-25 | 2022-05-17 | Oppo广东移动通信有限公司 | Random access method and communication equipment |
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Open date: 20090325 |