CN102547987B - Method and device for transmitting radio configuration message - Google Patents
Method and device for transmitting radio configuration message Download PDFInfo
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- CN102547987B CN102547987B CN201010588514.5A CN201010588514A CN102547987B CN 102547987 B CN102547987 B CN 102547987B CN 201010588514 A CN201010588514 A CN 201010588514A CN 102547987 B CN102547987 B CN 102547987B
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Abstract
The invention relates to a method and a device for transmitting a radio configuration message from a radio network controller layer in a universal mobile telecommunications system terrestrial radio access network. The method includes: utilizing an RNC (radio network controller) to inquire user signaling business volume; calculating activation time correction delta T according to that a priority level is higher than or equal to required transmission time of signaling of the radio configuration message; utilizing the delta T to correct radio configuration activation time; and transmitting the radio configuration message carrying the corrected radio configuration activation time to user equipment. By the aid of the method and the device, the radio configuration message can be guaranteed to be timely transmitted to the user equipment, and abnormal interaction of a network side and the user equipment due to business congestion of the RRC layer is avoided.
Description
Technical field
The present invention relates to radio resource control layer in mobile communication system carries out radio-resource-configuration method to subscriber equipment, specifically, relate to radio resource control layer in the Access Network of universal mobile telecommunications system ground and send the method for radio configuration message.
Background technology
In mobile communication system, as UTRAN (UMTS Terrestrial Radio Access Network, wireless universal Access Network) need to be to UE (User Equipment, subscriber equipment) carry out radio-resource-configuration or when amendment, descending RRC (Radio Resource Control, Radio Resource control) radio configuration message, as radio bearer is set up (RADIO BEARER SETUP), radio bearer is reshuffled (RADIO BEARER RECONFIGURATION), radio bearer release (RADIOBEARER RELEASE) etc., by RLC/MAC (Radio Link Control/Medium AccessControl, wireless chain control layer/medium access control layer) send to UE, the preparation that UTRAN inside is also set up in advance or revised the relevant Radio Resource of this UE simultaneously.In 3GPP agreement, describe for the configuration take-effective mode comprising in above-mentioned radio configuration message, have two kinds of modes: come into force or configure fixing activationary time and come into force.Wherein configure fixing activationary time and come into force and refer to, RRC arranges certain activationary time in message arrangement, and this activationary time is CFN (Connection FrameNumber, Connection Frame Number), arrive the moment at CFN, UTRAN and UE start new configuration simultaneously, stop old configuration.
Ensure that base station and UE forward in new configuration in the time that activationary time arrives simultaneously, first need to ensure before activationary time arrives, base station and UE have received the notice from RNC (Radio NetworkController, radio network controller).RNC realizes by Iub mouth NABP agreement to the notice of base station, realizes to the notice of UE by Uu mouth RRC agreement.Owing to being ATM transmission, there is not the restriction in bandwidth in Iub mouth, so only processing delay and the propagation delay time on Uu mouth of the constraint of activationary time.Activationary time is considered not enoughly, there will be base station energy notified, the problem that UE does not also have notified activationary time just to arrive, once there is this situation, due to the inconsistent interruption completely that will cause communicating by letter of configuration of base station and UE; If activationary time is considered oversizely, certainly will affect the performance that business is set up.Therefore the activationary time, how carrying in the scientific and reasonable relevant RRC radio configuration message of calculating is a problem requiring careful consideration.
The factor that the method for existing allocation activation time is considered comprises:
Need the transmission quantity size of the configuration signal of transmission, i.e. the length PDU size of the transmission block of descending radio configuration message after rlc layer is cut apart and number P DU number;
What transmit is consuming time, i.e. size and the interval of Transmission Time Interval TTI (Transmission Time Interval);
The time delay of transmission, physical layer Base-Band Processing time, RNC such as receive after data at the pending time, aerial transmission time and UE deal with data time to transmission time, the base station of base station.
Existing fixing activationary time collocation method is considered the impact of above each factor, and reserved certain surplus, presets the activationary time of a fixing value as configuration take-effective.But the method is due to single transmission time of considering configuration signal only, there is no to consider the moment sending this configuration messages, the RRC signaling message traffic carrying capacity that may exist other to be not yet sent on signaling channel, the problem of bringing is like this: when the priority that has other on RRC signaling channel is during greater than or equal to the traffic carrying capacity of current configuration messages, the transmission of configuration messages may be by above-mentioned message blocking, for example, in voice and packet data concurrent service handoff procedure, user discharges some business just, or user sets up voice and packet data concurrent service in handoff procedure, cause configuration messages can not be sent in time UE.If when the activationary time configuring on base station arrives, UE does not also receive corresponding radio-resource-configuration message, the configuration of base station and UE will occur inconsistent, and UE does not again receive this configuration messages getting clogged, and UE is interrupted completely with communicating by letter of network side.
Summary of the invention
The object of the present invention is to provide the method and the device that send radio configuration message, guarantee subscriber equipment can be received radio configuration message at radio configuration message before activationary time arrives, and new radio-resource-configuration can be come into force in time.
For solving the problems of the technologies described above, the invention provides scheme as follows:
A method that sends radio configuration message, comprises the following steps:
Radio network controller (RNC) inquiring user signaling traffic amount;
Needed computing activation transmission time, correction amount time of signaling T according to priority greater than or equal to radio configuration message;
Use this activationary time correction amount T to revise radio configuration activationary time;
This radio configuration message that carries this revised radio configuration activationary time is sent to subscriber equipment.
Compared with prior art, the present invention takes into full account the message traffic sending on configuration information moment rrc layer, obtain rational activationary time correction, existing fixing radio configuration activationary time is dynamically revised, can either ensure the promptness of configuration take-effective, can avoid again, because the upper traffic carrying capacity of signaling connection is excessive, exceeding the tolerance range of the activationary time of configuration, cause the mutual fatal abnormal problem of up-downgoing of network side and subscriber equipment.
Another program provided by the invention is as follows:
A method that sends radio configuration message, comprises the following steps:
Radio network controller (RNC) radio resource control RRC layer sends querying command to local rlc/mac layer;
Rrc layer is received after " can issue radio configuration message " notice of rlc/mac layer transmission, is hung up issuing of the upper signaling message of follow-up all Signaling Radio Bearer SRB;
Send this radio configuration message to subscriber equipment;
Remove the hang-up to the upper signaling message of this SRB.
Compared with prior art, the present invention is by hanging up upper follow-up all Signaling Radio Bearer SRB signaling message and remove and hang up, ensure that radio configuration message can be sent to subscriber equipment in time, avoid because the traffic congestion of rrc layer causes network side and the mutual abnormal situation of subscriber equipment.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the specific embodiment of the invention one;
Fig. 2 is the schematic flow sheet of the specific embodiment of the invention two.
Embodiment
Specific embodiment one as shown in Figure 1.
The factor that affects the calculating of radio configuration activationary time in the present embodiment comprises:
Factor 1: radio configuration message transmission quantity size, i.e. the length PDU size of the transmission block of descending radio configuration message after rlc layer is cut apart and number P DU number;
Factor 2: it is consuming time that radio configuration message transmits, i.e. the transmission rate of the size of TTI and interval and transmission channel and physical channel;
Factor 3: the time delay of radio configuration message transmission, physical layer Base-Band Processing time, RNC such as receive after data at the pending time, aerial transmission time and UE deal with data time to transmission time, the base station of base station;
Factor 4: retransmission cost, according to the number of retransmissions of the transmission quality selection space interface signaling of physical channel and transmission channel.
Factor 5: the traffic carrying capacity that other signaling messages bring.Due to signaling channel Bandwidth-Constrained, the business that other signaling messages cause will make a big impact to time delay.
In the present embodiment, represent new radio configuration activationary time with T_Activation_new, T_Activation_old represents the radio configuration activationary time that Consideration 1,2,3,4 obtains, and represents the correction that Consideration 5 carries out T_Activation_old with Δ T, has:
T_Activation_new=T_Activation_old+ Δ T formula one
In formula one, T_Activation_old is fixing activationary time, sets according to the reserved certain surplus of experimental data, and the calculating of this parameter has a detailed description in other documents, repeats no more herein.The present embodiment obtains Δ T by traffic carrying capacity Query Result, uses Δ T to revise T_Activation_old according to formula one, obtains T_Activation_new, and the radio configuration message that carries this revised radio configuration activationary time is sent to UE.
When sending, carry before the radio configuration message of activationary time by needs, RNC initiates inquiry in inside to local mac layer, query object is: local downlink signaling radio bearer SRB (Signalling RadioBearer) traffic carrying capacity, inquiry amount is: " RLC Buffer Payload for each RB ".Obtaining, after the Query Result of SRB traffic carrying capacity, being completed the calculating of activationary time correction amount T by RNC:
Δ T=∑ SRB (n) transmission time formula two
In formula two, establish the SRB of SRB (k) for this configuration signal of carrying, SRB (n) priority >=SRB (k) priority;
Wherein,
SRB (n) transmission time=((SRB (n) traffic carrying capacity/TB_size+1)/TB_number+1) * TTI
Formula three
In formula three, each parameter declaration is as follows:
The transmission block size of the corresponding transmission channel of TB_size: SRB, unit: bit;
The maximum transmitted piece number of the corresponding transmission channel of TB_number:SRB;
The Transmission Time Interval of the corresponding transmission channel of TTI: SRB: unit: ms;
It should be noted that, formula three was not considered situation about retransmitting for the calculating of upper traffic transmission time of SRB, and this is relevant to concrete channel quality, can consider as one sees fit to introduce certain surplus in the time of specific implementation.
Specific embodiment two as shown in Figure 2.
The present embodiment is by improving original RNC signaling message transmission flow, the re-transmission that may cause due to channel quality is accurately controlled, eliminated the impact that traffic carrying capacity that the same period, other signaling messages produced causes carrying the transmission delay of radio configuration message of radio configuration activationary time.
The method of the present embodiment comprises the following steps:
Before RNC rrc layer carries the radio configuration message of radio configuration activationary time in transmission, send inquiry and order is set to local rlc/mac layer.
Rlc/mac layer, after receiving inquiry and order is set, checks on current signaling channel, whether there is the business not sending.
If there is the business not sending on current signaling channel, local state is set for " business is sent rear notice rrc layer ";
If the business not sending on current signaling channel, notifies rrc layer " can issue radio configuration message ".
Rlc/mac layer notice rrc layer can issue after radio configuration message, and rrc layer is hung up issuing of the upper signaling message of follow-up all SRB, and pre-configured fixing activationary time is set in radio configuration message, completes issuing of radio configuration message.After rrc layer receives that the rlc/mac layer of radio configuration message is confirmed, then remove the hang-up to the upper signaling message of above-mentioned SRB.
When the local state of rlc/mac layer is during for " business is sent rear notice rrc layer ", can adopt the one in three seed scheme below to complete the instruction that sends " can issue radio configuration message " to rrc layer.
Subscheme one:
Send when rlc/mac layer detects last piece business datum, send immediately the notice of " can issue radio configuration message " to rrc layer.
Subscheme two:
After rlc/mac layer is being received the confirmation bag of all business datums, send immediately the notice of " can issue radio configuration message " to rrc layer.
Subscheme three:
If detecting in the process that has the transmission of signaling message business, rlc/mac layer there is situation about retransmitting: rlc/mac layer, after receiving the confirmation bag of all business datums, sends the notice of " can issue radio configuration message " immediately to rrc layer;
If rlc/mac layer detects the situation that does not have re-transmission in the process that has the transmission of signaling message business: rlc/mac layer detects that last piece business datum sends, send immediately the notice of " can issue radio configuration message " to rrc layer.
The respective embodiments described above are to realize specific embodiments of the invention, and in actual applications, can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (4)
1. send a method for radio configuration message, it is characterized in that comprising the following steps:
Radio network controller (RNC) inquiring user signaling traffic amount;
Needed computing activation transmission time, correction time of signaling △ T according to priority greater than or equal to radio configuration message;
Use described activationary time correction △ T to revise radio configuration activationary time;
The described radio configuration message that carries described revised radio configuration activationary time is sent to subscriber equipment;
Wherein, in described activationary time correction △ T=∑ SRB (n) transmission time, wherein SRB (k) is the SRB of this configuration signal of carrying, and SRB (n) priority >=SRB (k) priority;
Described SRB (n) transmission time=((SRB (n) traffic carrying capacity/TB_size+1)/TB_number+1) * TTI, wherein TB_size is the transmission block size of the corresponding transmission channel of SRB, TB_number is the maximum transmitted piece number of the corresponding transmission channel of SRB, and TTI is the Transmission Time Interval of the corresponding transmission channel of SRB.
2. the method for transmission radio configuration message according to claim 1, is characterized in that: RNC query object is local downlink signaling radio bearer SRB traffic carrying capacity.
3. a radio network controller, is characterized in that this radio network controller comprises:
Enquiry module, for inquiring user signaling traffic amount;
Computing module, for needed computing activation transmission time, correction time of the signaling △ T greater than or equal to radio configuration message according to priority; Wherein, in described activationary time correction △ T=∑ SRB (n) transmission time, wherein SRB (k) is the SRB of this configuration signal of carrying, and SRB (n) priority >=SRB (k) priority;
Described SRB (n) transmission time=((SRB (n) traffic carrying capacity/TB_size+1)/TB_number+1) * TTI, wherein TB_size is the transmission block size of the corresponding transmission channel of SRB, TB_number is the maximum transmitted piece number of the corresponding transmission channel of SRB, and TTI is the Transmission Time Interval of the corresponding transmission channel of SRB.
Correcting module, for using described activationary time correction △ T to revise radio configuration activationary time;
Sending module, for being sent to subscriber equipment by the described radio configuration message that carries described revised radio configuration activationary time.
4. radio network controller according to claim 3, is characterized in that: the query object of described enquiry module is local downlink signaling radio bearer SRB traffic carrying capacity.
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| CN103687047B (en) * | 2012-09-07 | 2017-12-19 | 京信通信系统（中国）有限公司 | General packet wireless business data transmission method, apparatus and system |
| CN105792345B (en) * | 2014-12-24 | 2019-02-12 | 鼎桥通信技术有限公司 | A method of carrying out activationary time compensation |
| CN105517020B (en) * | 2015-12-16 | 2018-09-28 | 京信通信系统（中国）有限公司 | A kind of method and device of update configuration parameter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1870810A (en) * | 2005-05-23 | 2006-11-29 | 中兴通讯股份有限公司 | Radio allocation activation time selecting method controlled by radio resource |
| CN1992966A (en) * | 2005-12-27 | 2007-07-04 | 中兴通讯股份有限公司 | Private wireless link reconfigured method with renewable activation time |
| CN101197612A (en) * | 2006-12-07 | 2008-06-11 | 大唐移动通信设备有限公司 | Method and device for computing activation time |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870810A (en) * | 2005-05-23 | 2006-11-29 | 中兴通讯股份有限公司 | Radio allocation activation time selecting method controlled by radio resource |
| CN1992966A (en) * | 2005-12-27 | 2007-07-04 | 中兴通讯股份有限公司 | Private wireless link reconfigured method with renewable activation time |
| CN101197612A (en) * | 2006-12-07 | 2008-06-11 | 大唐移动通信设备有限公司 | Method and device for computing activation time |
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