CN1467971A - Method and equipment for controlling wireless interface flow in wireless network - Google Patents
Method and equipment for controlling wireless interface flow in wireless network Download PDFInfo
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- CN1467971A CN1467971A CNA021239665A CN02123966A CN1467971A CN 1467971 A CN1467971 A CN 1467971A CN A021239665 A CNA021239665 A CN A021239665A CN 02123966 A CN02123966 A CN 02123966A CN 1467971 A CN1467971 A CN 1467971A
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Abstract
The invention relates to the method and apparatus for controlling wireless interface flow in the wireless network. The method comprises, the base station estimates the number of transmission blocks entering into the buffer of each channel during each transmission interval time, and when the estimated value of the number of transmission blocks of certain channel exceeds the maximum transmission block number that the channel can transmit, the RNC (radio network controller) will perform adjustment to the radio carrying service flow based on the corresponding measurement value. The invention also discloses the apparatus for realizing the method. The invention can guarantee the reliability of the data transmission.
Description
Technical field
The present invention relates to a kind of wireless network transmission technology, relate in particular to the method and the device thereof of control wave point flow in a kind of wireless network.
Background technology
Along with radio network technique and professional development, the following wireless interface technology that is fit to high-speed data communication further shortens the time requirement of wireless network processing signaling more and more towards the adaptive direction development.The base station will stop increasing and the closely-related signaling of wave point physical layer, control and the relevant process of professional transmission, and bear the radio resource management function that part is separated from RNC.And can there be direct transmission channel between base station and the base station.
This logic interfacing that realizes direct communication between NB (base station) is called as the IuNB interface.It provides two-way data and controls the transmission of signaling between two NB nodes.The agreement of IuNB interface is divided into chain of command agreement and user plane protocol.Wherein the chain of command agreement is used for transmitting resource management and the control signaling between the NB, and user plane protocol then is used for transmitting user data.
After introducing the IuNB interface, provide new solution thinking to a part of radio resource management function, as mobile management, power control etc.The problem that this new delivering path of while brings also requires with the RRM that upgrades.For example: the data that send on the wave point by Shift-NB (target BS) have two sources, and the one, directly pass to Shift-NB from RNC by Iub interface, another kind is that Serving-NB (source base station) passes to Shift-NB by the IuNB interface.If RNC and Serving-NB all with the throughput of wave point as the flow control standard that issues data, then when their simultaneously when Shift-NB sends data, may cause data congested in the transmission buffer memory of wave point and finally lost.Therefore, exist between this base station in the wireless network of logic interfacing of direct communication, can produce the flow conflict because of the channel of radio bearer influence reliability of data transmission.
Summary of the invention
The method and the device thereof that the purpose of this invention is to provide control wave point flow in a kind of wireless network, so that the wave point in the wireless network of the logic interfacing that has direct communication between the base station is realized flow control, guarantee reliability of data transmission in the wireless network, realize effective management wireless communication resources.
The object of the present invention is achieved like this: the method for control wave point flow in the wireless network comprises:
Corresponding buffer memory is delivered to the transmission block that receives in a, base station;
B, add up each channel and enter the transmission block number of buffer memory in the time at each transmission intercal;
Whether c, the transmission block number of judging statistics surpass the maximum transmitted piece number that each transmission intercal time of this channel can transmit, if above maximum transmitted piece number, the flow conflict takes place promptly, and execution in step d then, otherwise, execution in step b;
D, the flow conflict value of this channel is measured, and notified radio network controller measurement result;
E, radio network controller are adjusted corresponding radio bearer according to this measurement result.
Described buffer memory comprises: MAC (medium access control) buffer memory and PHY (physical layer) buffer memory, the wave point that is various channels sends buffer memory.
Described steps d comprises:
D1, definite radio bearer and corresponding radio channel information thereof that the flow conflict takes place, the i.e. CH-id (channel logo) of the wireless channel of the RB-id (radio bearer sign) of definite radio bearer and correspondence;
The adjusting range value that d2, calculating radio bearer need be adjusted;
The maximum transmitted piece number that the actual input number of transport blocks-transmission intercal time of adjusting range=statistics gained can transmit;
D3, will produce RB-id, CH-id and the adjusting range of the channel of flow conflict, send the radio resource controller in the radio network controller to.
Described steps d also comprises: when the flow of the channel of radio bearer clashed, the base station need increase the size of buffer memory.
Described step e comprises:
E1, radio network controller receive the measurement result that send the base station;
E2, determine to produce the channel of the radio bearer of flow conflict according to the information of carrying in the measurement result;
E3, the reconfiguration parameters of determining this channel according to the type and the corresponding adjusting range of the channel of radio bearer;
E4, radio network controller send to the base station with this reconfiguration parameters by wave point flow control signaling, and the adjustment of corresponding radio transmission parameter is then carried out in the base station according to the content of reconfiguration parameters.
Described step e3 comprises:
The channel of e31, judgement radio bearer is transmission channel or physical channel;
E32 then determines the transformat of this channel if transmission channel according to adjusting range;
E33 then determines the chnnel coding of this channel if physical channel according to adjusting range.
Described step e3 comprises:
E34, determine reconfiguration parameters to the channel of radio bearer;
E35, radio network controller are with the reconfiguration parameters notifying user equipment;
E36, between radio network controller and subscriber equipment, connect according to reconfiguration parameters.
In above-mentioned step e3, e4:
Described reconfiguration parameters comprises: the CH-id of the channel that the RB-id of the radio bearer that needs are adjusted, needs are adjusted and new transformat or the chnnel coding of determining;
Described radio transmission parameter comprises: the transmission block quantity of the maximum that the size of channel corresponding cache, each transmission intercal time can transmit.
Described step e4 also comprises:
The wave point flow control signaling of whether receiving the channel that comprises at radio bearer in the scope is at the appointed time judged in e41, base station;
If e42 receives wave point flow control signaling, then carry out corresponding channel adjustment according to the signaling content;
If e43 does not receive wave point flow control signaling, then adjust the time window of base station receiving data frames.
The device of control wave point flow in a kind of wireless network, its structure comprises radio bearer control module and wave point monitoring function module, wherein:
The radio bearer control module is arranged in the radio resource controller of radio network controller, be used for the measurement report sent here according to wave point monitoring function module and determine parameter that radio bearer is adjusted, and relevant parameter sent to wave point monitoring function module with the form of " flow control notice ", carry out corresponding adjustment by it to radio bearer.
Wave point monitoring function module is arranged in the base station, be used for the flow of wave point is judged, and the measurement result that will produce the flow conflict is offered the radio bearer control module with measurement report in form.
By technique scheme as can be seen, the method and the device thereof of control wave point flow in the wireless network of the present invention, add up by transmission block number each channel of each transmission bearer, thereby realize the flow of each channel is reasonably controlled, avoid influencing the transmission of data because of the service traffics conflict that each channel produces, guaranteed reliability of data transmission, simultaneously, can realize the communication in wireless networks resources effective is managed.
Description of drawings
Fig. 1 is the structural representation of device of the present invention;
Fig. 2 is the flow process schematic diagram of data in the base station among the present invention;
Fig. 3 is the embodiment flow chart of the method for the invention.
Embodiment
The device of control wave point flow as shown in Figure 1, includes RRC (radio resource controller) in the wireless network of the present invention among the RNC in the wireless network, includes wave point monitoring function module in the base station; Include the radio bearer control module among the RRC, this module is used for determining according to the measurement report that wave point monitoring function module reports the adjustment scheme of radio bearer, realize the radio bearer controlled function, adjustment scheme with definite radio bearer reports to the base station by the flow control notice simultaneously, and the adjustment of radio bearer channel is carried out according to this adjustment scheme in the base station; The transmission block number that wave point monitoring function module is used for delivering to according to the base station each channel of buffer memory carries out the judgement of wave point flow.
RNC among Fig. 1 by Iub interface to sending data with Shift-NB (target BS); Serving-NB (source base station) sends data by the IuNB interface to Shift-NB; Shift-NB sends the data that receive by wave point.At this moment, Shift-NB just can carry out flow to the buffer memory of transmission channels different on the wave point by its wave point monitoring function module and judges.If the input flow rate of certain channel buffer memory has surpassed the current setting capacity of this channel, then by the RRC among the form notice RNC of measurement report; Radio bearer control module among the RRC is adjusted corresponding radio bearer according to the information that measurement report provided; Then, the result with the radio bearer adjustment sends to Shift-NB with wave point flow control means of signaling.
The embodiment of the method for control wave point flow in the wireless network of the present invention, as shown in Figure 3:
Step 1: each channel buffer memory is delivered to the transmission block that receives in the base station, and by wave point monitoring function module the transmission block number that enters each channel buffer memory is added up in each TTI (Transmission Time Interval);
As shown in Figure 2, Frame is received by Shift-NB by the Frame Protocol function of Iub interface and IuNB interface; Therefrom the data of Qu Chuing are delivered to MAC/PHY (medium access control/physical layer) buffer memory of wave point in the mode of transmission block (TB); Carry out on its different channels that is distributed to wave point according to the pairing different channels of TB by the MAC/PHY buffer memory then; Above-mentioned MAC/PHY buffer memory is the general designation that the wave point of various channels is sent buffer memory; For some channel, as DCH (dedicated channel), therefore its MAC layer has only the PHY buffer memory in NB in RNC; In addition, in the function that MAC/PHY also comprises a data distribution, be responsible for and be distributed to from the TB piece that the Frame Protocol function transmits the buffer memory of respective channels;
Step 2: judge whether each channel enters buffer memory in each TTI transmission block number has surpassed the maximum TB quantity that each TTI of this channel can transmit, if surpass the maximum TB data that this channel can transmit, then execution in step 3, otherwise, execution in step 1;
Step 3: the base station sends measurement report about the flow conflict to RNC, simultaneously, the size of the MAC/PHY buffer memory of NB is suitably increased, and promptly distributes an interim buffer memory to store excessive reception and the TB data that can't in time send;
Because start the process need certain hour (as: T millisecond) that measurement report receives the adjustment signaling of radio bearer to the end from NB, the Frame Protocol function also receives new data constantly during individual; Simultaneously, if because a variety of causes makes NB can't receive the adjustment signaling of radio bearer in the T millisecond, in order to prevent the unrestricted increase of MAC/PHY buffer memory, can receive the time window of data by the Frame Protocol function adjustment of Iub and IuNB interface, the time interval that Frame is arrived increases, and avoids data can't enter the MAC/PHY buffer memory and is lost;
Step 31: wireless channel and the corresponding radio bearer thereof of determining to take place the flow conflict; Each radio bearer all has unique identification number a: RB-id (radio bearer sign) in RNC, each radio bearer also has fixing numbering: CH-id (channel logo) to its each wireless channel that comprises;
Step 32: the size of calculated flow rate conflict value, as the reference that RNC adjusts radio bearer, computational methods are as follows:
The maximum TB number that the actual input TB number-TTI of adjusting range=statistics gained can transmit
Step 33: the base station is above-mentioned parameter about flow conflict value, i.e. RB-id, CH-id and adjusting range, and the signaling " FLOW CONFLICTION REPORT " by the Iub interface chain of command sends the RRC among the RNC to;
Step 4:RNC adjusts corresponding radio bearer according to the parameter of the flow conflict value that the base station reports;
Adjustment to the wireless bearer service flow in RNC comprises transmission channel method for reconfiguration and physical channel method for reconfiguration; Physical channel what reshuffle adjustment is the coding of physical channel, transmission channel reshuffle the transformat that can adjust channel, perhaps adjust the TFS Transport Format Set of channel, perhaps Business Stream is switched on the transmission channel with other, as switching to dedicated transmission channel from Common transport channel;
After step 41:RNC receives flow conflict measurement report, determine the UE of the radio bearer correspondence of generation flow conflict according to the radio bearer sign;
Step 42: the transmission channel or the physical channel of the conflict of definite generation flow, with the channel type that basis clashes, any wireless bearer service flow method of adjustment of decision employing promptly adopts physical channel to reshuffle or transmission channel is reshuffled;
Step 43: determine concrete channel reconfiguration parameters according to " adjusting range " in the flow conflict measurement report, as transformat or chnnel coding etc.;
Step 44:RNC is notified to UE (user) by the RRC signaling with reconfiguration parameters earlier; RNC and UE need to consult one group of available transformat and channel coding schemes before connecting; Carrying active during in, select for use transformat or the channel coding schemes consulted can guarantee to obtain the performance support of UE, thereby realize the flow adjustment on the wave point fast, reduce the pressure that the MAC/PHY buffer memory bears in the base station.
Step 45:RNC sends wave point flow control signaling " FLOW CONFLICTION RESPONSE " by the chain of command of Iub interface to NB, and signaling bear the RB-id of the radio bearer that needs adjustment, the transmission channel that need adjust or wireless channel CH-id and is this channel new definite transformat or chnnel coding;
After step 46:Shift-NB receives this signaling, adjust the radio transmission parameter of respective channel, the transmission block quantity of holding as the size of channel corresponding cache, TTI etc. according to the transformat of signaling bear or chnnel coding;
Step 47: after the adjustment of channel that the flow conflict takes place finished, Shift-NB just can normally send data by wave point; After data in the interim buffer memory that distributes for the MAC/PHY buffer memory send and finish, Shift-NB discharges unnecessary buffer memory, if before this Data Receiving window of Iub interface and IuNB interface was done to adjust, at this moment, also need the Data Receiving window of Iub interface and IuNB interface is adjusted to normally.
After said process finishes, the incoming traffic amount of the service traffics of air interface and Shift-NB is in new poised state, the wave point monitoring function continues the state of monitoring MAC/PHY buffer memory, when the Business Stream of Iub interface or IuNB interface reduces or stops, original state of wave point monitoring function and not responsible recovery radio bearer, but realize that according to existing RRC control procedure RB reshuffles by UE.
Claims (10)
1, the method for control wave point flow in a kind of wireless network comprises:
Corresponding buffer memory is delivered to the transmission block that receives in a, base station;
B, add up each channel and enter the transmission block number of buffer memory in the time at each transmission intercal;
Whether c, the transmission block number of judging statistics surpass the maximum transmitted piece number that each transmission intercal time of this channel can transmit, if above maximum transmitted piece number, the flow conflict takes place promptly, and execution in step d then, otherwise, execution in step b;
D, the flow conflict value of this channel is measured, and notified radio network controller measurement result;
E, radio network controller are adjusted corresponding radio bearer according to this measurement result.
2, the method for control wave point flow in the wireless network according to claim 1, it is characterized in that described buffer memory comprises: MAC (medium access control) buffer memory and PHY (physical layer) buffer memory, the wave point that is various channels sends buffer memory.
3, the method for control wave point flow in the wireless network according to claim 1 is characterized in that described steps d comprises:
D1, definite radio bearer and corresponding radio channel information thereof that the flow conflict takes place, the i.e. CH-id (channel logo) of the wireless channel of the RB-id (radio bearer sign) of definite radio bearer and correspondence;
The adjusting range value that d2, calculating radio bearer need be adjusted;
The maximum transmitted piece number that the actual input number of transport blocks-transmission intercal time of adjusting range=statistics gained can transmit;
D3, will produce RB-id, CH-id and the adjusting range of the channel of flow conflict, send the radio resource controller in the radio network controller to.
4, the method for control wave point flow in the wireless network according to claim 1 is characterized in that described steps d also comprises: when the flow of the channel of radio bearer clashed, the base station need increase the size of buffer memory.
5, according to the method for control wave point flow in claim 1 or the 3 described wireless networks, it is characterized in that described step e comprises:
E1, radio network controller receive the measurement result that send the base station;
E2, determine to produce the channel of the radio bearer of flow conflict according to the information of carrying in the measurement result;
E3, the reconfiguration parameters of determining this channel according to the type and the corresponding adjusting range of the channel of radio bearer;
E4, radio network controller send to the base station with this reconfiguration parameters by wave point flow control signaling, and the adjustment of corresponding radio transmission parameter is then carried out in the base station according to the content of reconfiguration parameters.
6, the method for control wave point flow in the wireless network according to claim 5 is characterized in that described step e3 comprises:
The channel of e31, judgement radio bearer is transmission channel or physical channel;
E32 then determines the transformat of this channel if transmission channel according to adjusting range;
E33 then determines the chnnel coding of this channel if physical channel according to adjusting range.
7, the method for control wave point flow in the wireless network according to claim 5 is characterized in that described step e3 comprises:
E34, determine reconfiguration parameters to the channel of radio bearer;
E35, radio network controller are with the reconfiguration parameters notifying user equipment;
E36, between radio network controller and subscriber equipment, connect according to reconfiguration parameters.
8, the method for control wave point flow in the wireless network according to claim 5 is characterized in that among step e3, the e4:
Described reconfiguration parameters comprises: the CH-id of the channel that the RB-id of the radio bearer that needs are adjusted, needs are adjusted and new transformat or the chnnel coding of determining;
Described radio transmission parameter comprises: the transmission block quantity of the maximum that the size of channel corresponding cache, each transmission intercal time can transmit.
9, the method for control wave point flow in the wireless network according to claim 5 is characterized in that described step e4 also comprises:
The wave point flow control signaling of whether receiving the channel that comprises at radio bearer in the scope is at the appointed time judged in e41, base station;
If e42 receives wave point flow control signaling, then carry out corresponding channel adjustment according to the signaling content;
If e43 does not receive wave point flow control signaling, then adjust the time window of base station receiving data frames.
10, the device of control wave point flow in a kind of wireless network is characterized in that comprising radio bearer control module and wave point monitoring function module, wherein:
The radio bearer control module is arranged in the radio resource controller of radio network controller, be used for the measurement report sent here according to wave point monitoring function module and determine parameter that radio bearer is adjusted, and relevant parameter sent to wave point monitoring function module with the form of " flow control notice ", carry out corresponding adjustment by it to radio bearer.
Wave point monitoring function module is arranged in the base station, be used for the flow of wave point is judged, and the measurement result that will produce the flow conflict is offered the radio bearer control module with measurement report in form.
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| CN 02123966 CN1239001C (en) | 2002-07-10 | 2002-07-10 | Method and equipment for controlling wireless interface flow in wireless network |
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| CN 02123966 CN1239001C (en) | 2002-07-10 | 2002-07-10 | Method and equipment for controlling wireless interface flow in wireless network |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438490C (en) * | 2004-08-27 | 2008-11-26 | 华为技术有限公司 | Average data issuing time regulating method based on statistic |
| CN100450254C (en) * | 2006-10-24 | 2009-01-07 | 华为技术有限公司 | Method and apparatus for measuring Iur interface throughput in universal mobile communication system |
| CN101123573B (en) * | 2006-08-09 | 2010-08-25 | 普天信息技术研究院 | Flow control method for packet data units in high-speed downlink link packet access network |
| CN101427527B (en) * | 2006-03-15 | 2011-05-18 | 中兴通讯股份有限公司 | A terminal radio bearer resource management method |
| CN101873475B (en) * | 2010-01-07 | 2012-09-05 | 杭州海康威视数字技术股份有限公司 | Control command sending method, data transmission method, monitoring system and device |
| CN103975642A (en) * | 2012-11-22 | 2014-08-06 | 华为技术有限公司 | Method, device and system for short-distance communication |
-
2002
- 2002-07-10 CN CN 02123966 patent/CN1239001C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438490C (en) * | 2004-08-27 | 2008-11-26 | 华为技术有限公司 | Average data issuing time regulating method based on statistic |
| CN101427527B (en) * | 2006-03-15 | 2011-05-18 | 中兴通讯股份有限公司 | A terminal radio bearer resource management method |
| CN101123573B (en) * | 2006-08-09 | 2010-08-25 | 普天信息技术研究院 | Flow control method for packet data units in high-speed downlink link packet access network |
| CN100450254C (en) * | 2006-10-24 | 2009-01-07 | 华为技术有限公司 | Method and apparatus for measuring Iur interface throughput in universal mobile communication system |
| CN101873475B (en) * | 2010-01-07 | 2012-09-05 | 杭州海康威视数字技术股份有限公司 | Control command sending method, data transmission method, monitoring system and device |
| CN103975642A (en) * | 2012-11-22 | 2014-08-06 | 华为技术有限公司 | Method, device and system for short-distance communication |
| US9839062B2 (en) | 2012-11-22 | 2017-12-05 | Huawei Technologies Co., Ltd. | Short range communications method, device, and system |
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| CN1239001C (en) | 2006-01-25 |
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