CN101080085B - Qos processing method in SCDMA wireless communication system - Google Patents
Qos processing method in SCDMA wireless communication system Download PDFInfo
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- CN101080085B CN101080085B CN2006100782818A CN200610078281A CN101080085B CN 101080085 B CN101080085 B CN 101080085B CN 2006100782818 A CN2006100782818 A CN 2006100782818A CN 200610078281 A CN200610078281 A CN 200610078281A CN 101080085 B CN101080085 B CN 101080085B
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Abstract
This invention relates to a method for processing QoS in a SCDMA wireless communication system including the following steps: 1, a terminal maintains user information reported by frames by a spread link periodically after it enters into a session state, 2, a base station registers down S/N ratio and down error rate reported by the terminal and judges if it has started up the access limit currently, 3, if so, the base station judges if it needs to resume the access system and processes it accordingly based on a preset access resuming rule, 4, if the base station judges that the access limit is not started up currently, it judges if it needs starting up the limit system according to a preset rule of access limit and processes it accordingly, which can realize the maximum combination of session quality and capacitance of base stations.
Description
Technical field
The present invention relates to the QoS processing method in a kind of wireless communication system, relate in particular to the QoS processing method in a kind of SCDMA wireless communication system.
Background technology
(patent No. ZL02160284.0) described the method for channel access employing branch frame synchronization in the SCDMA system in the patent document that is entitled as " the branch frame synchronization process method of access channel ".In this patent, described and changed asynchronous access the access of into branch frame synchronization, with original access frame, be split into access and signaling information two parts and upward send out successively, terminal at first sends access information, after obtaining the synchronous adjustment instruction of base station, on next frame, send out access signaling information and finish access.
The orthogonality of walsh sign indicating number is adopted in the base station to the information decoding received the time.When each frame signal synchronous when fine, with oneself orthogonality be 0, can not cause interference to other users; When frame signal is asynchronous, with oneself orthogonality be not that 0, one user can produce interference to another user.This is that ubiquitous multiple access disturbs in cdma system.Adopting access channel recited above to divide in the SCDMA system of frame synchronization, because in descending access code sequence frame structure, CRC check for synchronization field SS and power control field PC is defective, it is poor to work as wireless noise so, when the error rate is higher, will cause the synchronization field SS and the power control field PC mistake that issue, and during the base station access by terminal of adjusting according to the SS of mistake and PC, will cause great interference to the current online user in base station, can cause online user's call drop when serious.
Therefore, being necessary to design a kind of novel QoS processing method solves the problems referred to above in fact.
Summary of the invention
The object of the present invention is to provide the QoS processing method in a kind of novel SCDMA wireless communication system, make the dynamic equilibrium that the SCDMA system that adopted this method can keep speech quality and base station capacity.
To achieve these goals, method of the present invention may further comprise the steps:
(1) every interval one preset time was by a link maintenance frame report of user message of expanding after terminal entered talking state, and described user message comprises the descending signal to noise ratio and the descending error rate of a plurality of Frames before the link maintenance frame that is positioned at described expansion in this predetermined amount of time;
(2) the descending signal to noise ratio and the descending error rate of base station record terminal to report, and judge the current access restriction that whether started;
(3) insert restriction if current the startup judged in the base station, then the base station judges whether that according to a predetermined recovery access rules needs recover access mechanism and carry out respective handling;
(4) if the current access restriction that starts is judged in the base station, then the base station is inserted restriction rule according to a predetermined startup and is judged whether that needs start the access restriction scheme and carry out respective handling.
According to the present invention, described step (3) and then may further comprise the steps: the base station is by received user message number statistical current online user number order, if the current online user number order is smaller or equal to a predetermined recovery access number, then access mechanism is recovered in the base station, allows new user's access base station; If the current online user number order is greater than described recovery access number, and following two conditions are satisfied simultaneously, then access mechanism is recovered in the base station, allows new user's access base station:
A. the arithmetic mean of the descending signal to noise ratio that reports of all online users recovers thresholding greater than a predetermined signal to noise ratio,
B. the percentage of the arithmetic mean of the descending error rate that reports of all online users recovers thresholding less than a predetermined error rate.
Preferably, described step (4) and then may further comprise the steps: the base station is by received user message number statistical current online user number order, if the current online user number order limits the number less than a predetermined startup, then the descending signal to noise ratio and the descending error rate are not added up in the base station; If the current online user number order limits the number more than or equal to described startup, as long as meet following any one condition, the base station just no longer allows new user to be linked into system:
A. the arithmetic mean of the descending signal to noise ratio that reports of all online users is smaller or equal to a predetermined signal to noise ratio restriction thresholding,
B. the percentage of the arithmetic mean of the descending error rate that reports of all online users is more than or equal to a predetermined error rate restriction thresholding.
According to the present invention, a data type field, a descending signal to noise ratio field and a descending error rate field have been increased in the link maintenance frame of described expansion, wherein said data type field is represented the type of the entrained data of link maintenance frame of described expansion, and described preset time and the identical 220ms that is of link maintenance frame required time that transmits described expansion.Preferably, described signal to noise ratio limiting door is limited to 7, and it is 9 that described signal to noise ratio is recovered thresholding, and described error rate limiting door is limited to 10, and it is 1 that the described error rate is recovered thresholding, and it is 5 that described startup limits the number, and described recovery access number is 4.
By method of the present invention, the SCDMA system can realize the best combination of speech quality and base station capacity, has improved systematic function.
Description of drawings
Below, with reference to accompanying drawing method of the present invention is described in detail, wherein:
Fig. 1 is the flow chart according to QoS processing method in the SCDMA wireless communication system of the present invention.
Embodiment
As shown in Fig. 1, in the SCDMA system that adopts QoS processing method of the present invention, every interval one preset time was by a link maintenance frame report of user message of expanding after terminal entered talking state.In the present invention, described preset time for example can be 220ms, promptly can length of complete reception the link maintenance frame that is 22 frames.In the link maintenance frame of described expansion, except the whole fields that comprise existing link maintenance frame, a data type field, a descending signal to noise ratio field and a descending error rate field have also been increased.
According to one embodiment of present invention, described data type field takies 2bits, and it represents the data type of carrying in the up user message.When the value of this field was 00, what represent that this message carries was the shared downlink parameter of user, and described parameter for example comprises received signal intensity, real power, frequency deviation, the distance etc. sent out; When the value of this field was 01, what represent that this message carries was the used parameter of QoS controlling mechanism.
Descending signal to noise ratio field is represented the down link signal to noise ratio that this terminal takies, and this field length can be 9bits.The value of this field is to be the signal to noise ratio assembly average of a plurality of Frames before the link maintenance frame of described expansion in the measurement period that calculates of terminal and to enlarge 10 times, and its result keeps 1 decimal; After the base station receives this message, with the value of this field divided by the 10 signal to noise ratio mean values (keeping 1 decimal) that are down link in the measurement period.
Descending error rate fields account 5bits, it has represented the number that frame check makes mistakes in a plurality of Frames.
The descending signal to noise ratio and the descending error rate of base station record terminal to report, and judge the current access restriction that whether started.If the base station is judged current the startup and is inserted restriction, the base station is by received user message number statistical current online user number order, if the current online user number order is during smaller or equal to a predetermined recovery access number, then access mechanism is recovered in the base station, allows new user's access base station; If the current online user number order is during greater than described recovery access number, the base station is added up the descending signal to noise ratio and the descending error rate of current online user, if following two conditions satisfy simultaneously, then access mechanism is recovered in the base station, allows new user's access base station:
A. the arithmetic mean of the descending signal to noise ratio that reports of all online users recovers thresholding greater than a predetermined signal to noise ratio,
B. the percentage of the arithmetic mean of the descending error rate that reports of all online users recovers thresholding less than a predetermined error rate.
On the contrary, if the base station is judged current the startup and is inserted restriction, then the base station is by received user message number statistical current online user number order, if when the current online user number order limits the number less than a predetermined startup, then the signal to noise ratio and the error rate are not added up in the base station; When if the current online user number order limits the number more than or equal to described startup, the base station is added up the descending signal to noise ratio and the descending error rate of current online user, as long as meet following any one condition, the base station just no longer allows new user to be linked into system:
A. the arithmetic mean of the descending signal to noise ratio that reports of all online users is smaller or equal to a predetermined signal to noise ratio restriction thresholding,
B. the percentage of the arithmetic mean of the descending error rate that reports of all online users is more than or equal to a predetermined error rate restriction thresholding.
When analyzing descending signal to noise ratio, the arithmetic average algorithm that is adopted is meant that the base station in statistics constantly, sues for peace to current all online users' descending signal to noise ratio, and then divided by current online user number, the result be the descending signal to noise ratio after on average.And when analyzing the descending error rate, the percentage of the arithmetic mean that uses is meant sues for peace to current all online users' descending error code number of times, then divided by current online user number, again divided by 22, multiply by 100 at last, obtain the percentage of the descending error rate.
Be to be understood that, can be according to the wireless signal characteristics of this locality, adjust each the predetermined threshold value in the inventive method, usually can make the signal to noise ratio limiting door be limited to 7, it is 9 that signal to noise ratio is recovered thresholding, and error rate limiting door is limited to 10, and it is 1 that the error rate is recovered thresholding, it is 5 that startup limits the number, and recovering access number is 4.
The Qos method of the application of the invention can be brought following benefit:
(1) when the spacing wave mass ratio is better, because not satisfying, the descending signal to noise ratio and the descending error rate do not start the thresholding that restriction inserts, can not start and forbid user's access mechanism, thereby hold the user to greatest extent, improved the capacity of base station;
(2) when the spacing wave poor quality, if current access user is less, when not reaching predetermined startup and limiting the number, do not start the limited subscriber access mechanism yet, guaranteed the capacity of base station;
(3) reach predetermined startup restriction thresholding when online user's number, and descending signal to noise ratio or the descending error rate there is one to reach when starting restriction and inserting thresholding, will starts the limited subscriber access mechanism immediately, no longer allow new user to insert.Because this moment, the new terminal that inserts probably is to insert according to the SS of mistake and PC adjustment back, and is bigger to online user's interference ratio, is easy to cause online user's call drop.When capacity and quality contradiction, the base station selected speech quality that guarantees the online user;
(4) when online user's number is reduced to predetermined recovery thresholding, the base station can be unconditional recovery insert, from and increased the capacity of base station;
(5) still surpass predetermined recovery number thresholding as the online user, if but the descending signal to noise ratio and the descending error rate satisfy recovery threshold value separately simultaneously, and the base station also can recover to insert so.So both guarantee online user's speech quality, improved the capacity of base station again.
Claims (4)
1. the QoS processing method in the SCDMA wireless communication system is characterized in that, said method comprising the steps of:
(1) every interval one preset time was by a link maintenance frame report of user message of expanding after terminal entered talking state, and described user message comprises the descending signal to noise ratio and the descending error rate of a plurality of Frames before the link maintenance frame that is positioned at described expansion in this predetermined amount of time;
(2) the descending signal to noise ratio and the descending error rate of base station record terminal to report, and judge the current access restriction that whether started;
(3) insert restriction if current the startup judged in the base station, then the base station judges whether that according to a predetermined recovery access rules needs recover access mechanism and carry out respective handling;
(4) if the current access restriction that starts is judged in the base station, then the base station is inserted restriction rule according to a predetermined startup and is judged whether that needs start the access restriction scheme and carry out respective handling;
Described step (3) and then may further comprise the steps:
The base station is by received user message number statistical current online user number order, if the current online user number order smaller or equal to a predetermined recovery access number, then access mechanism is recovered in the base station, allows new user's access base station; If the current online user number order is greater than described recovery access number, and following two conditions are satisfied simultaneously, then access mechanism is recovered in the base station, allows new user's access base station:
A. the arithmetic mean of the descending signal to noise ratio that reports of all online users recovers thresholding greater than a predetermined signal to noise ratio,
B. the percentage of the arithmetic mean of the descending error rate that reports of all online users recovers thresholding less than a predetermined error rate, the percentage of the arithmetic mean of the described descending error rate is meant sues for peace to current all online users' descending error code number of times, then divided by current online user number, divided by 22, multiply by 100 at last again;
Described step (4) and then may further comprise the steps:
The base station is by received user message number statistical current online user number order, if the current online user number order limits the number less than a predetermined startup, then the descending signal to noise ratio and the descending error rate are not added up in the base station, do not start the limited subscriber access mechanism; If the current online user number order limits the number more than or equal to described startup, as long as meet following any one condition, the base station just no longer allows new user to be linked into system:
A. the arithmetic mean of the descending signal to noise ratio that reports of all online users is smaller or equal to a predetermined signal to noise ratio restriction thresholding,
B. the percentage of the arithmetic mean of the descending error rate that reports of all online users is more than or equal to a predetermined error rate restriction thresholding.
2. the method for claim 1, it is characterized in that, increased a data type field, a descending signal to noise ratio field and a descending error rate field in the link maintenance frame of described expansion, wherein said data type field is represented the type of the entrained data of link maintenance frame of described expansion.
3. method as claimed in claim 1 or 2 is characterized in that, described preset time is identical with the link maintenance frame required time of the described expansion of transmission, is 220ms.
4. method as claimed in claim 2 is characterized in that, described signal to noise ratio limiting door is limited to 7, it is 9 that described signal to noise ratio is recovered thresholding, and described error rate limiting door is limited to 10, and it is 1 that the described error rate is recovered thresholding, it is 5 that described startup limits the number, and described recovery access number is 4.
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| CN107005343B (en) | 2015-03-31 | 2019-06-07 | 深圳市大疆创新科技有限公司 | A kind of wireless communication control method and device |
| CN106332186B (en) * | 2015-06-23 | 2021-11-02 | 中兴通讯股份有限公司 | Call method and device |
| CN107888345B (en) * | 2016-09-29 | 2022-02-18 | 中兴通讯股份有限公司 | Information transmission method and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1529449A (en) * | 2003-10-13 | 2004-09-15 | 中兴通讯股份有限公司 | Method for realizing pocket data business service quality of CDMA zooo system |
| CN1723720A (en) * | 2002-12-10 | 2006-01-18 | 诺基亚有限公司 | Apparatus, and an associated method, for providing traffic class support for QoS activation in a radio communication system |
| CN1756115A (en) * | 2004-09-30 | 2006-04-05 | 华为技术有限公司 | Rapid congestion controlling method in WCDMA system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1723720A (en) * | 2002-12-10 | 2006-01-18 | 诺基亚有限公司 | Apparatus, and an associated method, for providing traffic class support for QoS activation in a radio communication system |
| CN1529449A (en) * | 2003-10-13 | 2004-09-15 | 中兴通讯股份有限公司 | Method for realizing pocket data business service quality of CDMA zooo system |
| CN1756115A (en) * | 2004-09-30 | 2006-04-05 | 华为技术有限公司 | Rapid congestion controlling method in WCDMA system |
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