CN100411483C - Method for controlling service cell updating - Google Patents
Method for controlling service cell updating Download PDFInfo
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- CN100411483C CN100411483C CNB2005100362639A CN200510036263A CN100411483C CN 100411483 C CN100411483 C CN 100411483C CN B2005100362639 A CNB2005100362639 A CN B2005100362639A CN 200510036263 A CN200510036263 A CN 200510036263A CN 100411483 C CN100411483 C CN 100411483C
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Abstract
The present invention discloses a method for controlling service cell update, which comprises that an update preparation message is sent to a source base station by RNC, and data quantity to be sent of the UE is calculated by the source base station, and is fed back to the RNC to obtain residual transmitting time or directly obtain the residual transmitting time by the source base station. RNC stops transmitting data to the source base station, and informs a target base station to carry out update of the service cell. The activation time which is longer than the residual transmitting time on the value collocated by the RNC is sent to the target base station and the UE. The update of the service cell is completed by the UE, and the RNC stops receiving data from the source service cell at the corresponding time of the activation time, and starts receiving data from the target service cell. Before the activation time of sending data by the source base station, the data to be sent stored in the source base station can be sent to the UE in time by the present invention, and thus, the loss of data when the UE is updated in the service cell can be effectively avoided.
Description
Technical field
The present invention relates to wireless communication technology, especially relate to the service cell updating technology.
Background technology
High speed downlink packet inserts (HSDPA, High Speed Downlink Packet Access), it is the key property of WCDMA technology the 5th version, its introducing has increased by three kinds of channels, be respectively the high-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH) in downlink transmission data information, the High-Speed Shared Control Channel (HS-SCCH) of transmission Downlink Control Information, and the High-Speed Dedicated Physical Control Channel (HS-DPCCH) of transmission uplink feedback information.
Locate owing to the data dispatch between the different user and flow control function have been moved on to base station (NodeB) in the HSDPA technology,, can only transmit data by a sub-district and give the reception user at down direction.On the contrary, a user can set up communicating to connect of DPCH DPCH with a plurality of sub-districts descending, the DPCH DPCH of a plurality of sub-districts gives the user in the same data of same moment transmission, therefore the user of receiving terminal can receive from the signal of different districts and carry out suitable merging, reaches better receptivity.The user who has set up the DPCH channel communication with a plurality of sub-districts is called the soft handover user.
As shown in Figure 1, wherein user 1 and sub-district 1 and sub-district 2 have been set up two dedicated channel DPCH simultaneously, and therefore, user 1 has entered soft changing state, and 2 of users and sub-district 3 have been set up and communicated to connect, and do not enter soft changing state.All sub-districts that keep the DPCH channel to be connected with the user are commonly referred to active set cell, the sub-district of wherein having set up the connection of HS-PDSCH channel is called the Serving cell of HS-PDSCH channel, that is to say that the Serving cell of HS-PDSCH channel must be in the active set cell.
Because the user moves, dynamic change can take place in user's active set cell.In general, when a user to a neighbor cell near the time, if the signal of this neighbor cell is higher than a predefined thresholding, then system can join this sub-district in user's the active set, promptly sets up the DPCH channel between this sub-district and user; Otherwise when a user was in sub-district in the active set away from certain, if the signal of this sub-district is lower than a predefined thresholding, then this sub-district can be deleted by system from active set.
When belonging to different base station when the cell-of-origin in the service cell updating process of HS-DSCH respectively with Target cell as shown in Figure 2, high speed media access control (MAC_hs) entity owing to base station under the source Serving cell in the renewal process in the current techniques resets, thereby causes being stored in the loss of data in the MAC-hs entity buffer memory in this base station.
For the business that high level adopts non-affirmation mode to transmit, the loss of data of base station means that receiving terminal can not receive complete data, causes the decline of quality of service, for example produces the discontinuous of video pictures, phenomenons such as the interruption of sound.
Adopt the affirmation mode to transmit the business of data for high level, the loss of data of base station means that the RNC needs send to data in the MAC_hs entity of newly-established base station by the interface between the base station under RNC and the new Serving cell again, the on the one hand increase of data volume and cause the waste of bandwidth on the interface, on the other hand, because RNC can only determine just that after receiving the status report of UE which data is not correctly sent to UE by source base station, indication according to status report resends those data of being lost to new base station then, thereby brings extra time delay.
Summary of the invention
Purpose of the present invention is exactly by reasonable control service cell updating process, reduces the loss of data that the user carries out HS-DSCH between different base station service cell updating causes, and improves service quality.
For solving the problems of the technologies described above, technical scheme of the present invention may further comprise the steps:
A, radio network controller (RNC) send to upgrade to source base station prepares message;
The data volume to be sent of B, source base station statistics user UE sends to RNC;
C, RNC stop to send data to source base station, and the renewal of Serving cell is carried out in the notification target base station;
D, RNC are added up the average throughput of acquisition according to data volume to be sent in conjunction with situation that the UE data are sent and are obtained remaining transmitting time, greater than the activationary time of residue transmitting time, send to target BS and UE on the configuration numerical value;
E, UE finish service cell updating, and RNC stops to receive data from the source Serving cell in the activationary time moment corresponding, begins to receive data from target serving district.
Source base station is added up the data volume to be sent of preserving for described UE in the high speed media access control entity that the data volume to be sent of UE is source base station statistics UE among the wherein said step B.
The mode that sends to RNC among the wherein said step B is to send to the parameter that increases a representative data volume to be sent in the ready message of RNC at source base station.
Average throughput is the data rate that the user is eating dishes without rice or wine to obtain by HSDPA.
The present invention can also be achieved through the following technical solutions:
A, RNC send to upgrade to source base station and prepare message;
The data volume to be sent of b, source base station statistics UE is added up the average throughput of acquisition according to described data volume to be sent in conjunction with situation that the UE data are sent and is obtained remaining transmitting time, sends to RNC;
C, RNC stop to send data to source base station, and the renewal of Serving cell is carried out in the notification target base station;
D, RNC be on the source base station configuration numerical value greater than the activationary time of residue transmitting time, activationary time is sent to target BS and UE;
E, UE finish service cell updating, and RNC stops to receive data from the source Serving cell in the activationary time moment corresponding, begins to receive data from target serving district.
Source base station is added up the data volume to be sent of preserving for described UE in the high speed media access control entity that the data volume to be sent of UE is source base station statistics UE among the wherein said step b.
The mode that sends to RNC among the wherein said step b is to send to the parameter that increases a representative residue transmitting time in the ready message of RNC at source base station.
Average throughput is the data rate that the user is eating dishes without rice or wine to obtain by HSDPA.
In the present invention, owing to the MAC_hs entity is resetted at source base station, target BS sends before the activation moments of data, the data that are stored in the MAC_hs entity of source base station can in time pass to the user, thus the loss of data that causes when effectively avoiding HSDPA user between the base station, to carry out service cell updating.Greater than the activationary time of residue transmitting time, guarantee that remaining data correctly sends to the user to data between the activationary time of service cell updating arrives, avoid loss of data on the RNC configuration numerical value.Therefore the present invention can rationally control the service cell updating process, improves service quality.
Description of drawings
Fig. 1 is the schematic diagram that is in the HSDPA user of soft changing state and non-soft changing state.
Fig. 2 is the user carries out the HS-DSCH service cell updating between different base station a schematic diagram.
Fig. 3 is the flow chart of the specific embodiment of the invention 1.
Fig. 4 is the flow chart of the specific embodiment of the invention 2.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 2, when carrying out HS-DSCH channel services cell update, also store in the MAC_hs entity of source base station a given data etc. data to be sent.The losing of these outgoing data when reducing cell update, method for controlling service cell updating provided by the invention specifically may further comprise the steps with reference to Fig. 3:
Step 301:RNC sends to upgrade to source base station and prepares message, and data volume to be sent is added up in the notification source base station.
Step 302: after source base station was received and prepared message, statistics belonged to the data volume to be sent of user's preservation of upgrading for need in the MAC_hs entity, send to RNC.Send mode can be to give the parameter that increases a representative data volume to be sent in the ready message of RNC at source base station, also can be that special one message of carrying data amount information of source base station is given RNC.
After step 303:RNC obtains data volume to be sent, stop to send data to source base station, the renewal of Serving cell is carried out in the notification target base station, ready for sending message informing RNC after target BS is finished.
Step 304:RNC is source base station and target BS allocation activation time.This activationary time must meet the following conditions: the value of activationary time is greater than the residue transmitting time that sends remaining data.In this step, RNC to service cell updating before the UE data send situation and added up and obtain average throughput (being the data rate that the user is eating dishes without rice or wine to obtain by HSDPA), divided by average throughput, obtain remaining transmitting time with the data volume to be sent that obtains in the step 302.After obtaining activationary time, RNC sends to target BS and UE to activationary time.
Step 305:UE finishes service cell updating, sends message to RNC.In the activationary time moment corresponding, stop to receive data from the source Serving cell, begin to receive data from target serving district.
Step 306: service cell updating finishes
According to Fig. 4, the present invention can also finish with following step:
Step 401:RNC sends to upgrade to source base station and prepares message, and data volume to be sent is added up in the notification source base station.
Step 402: after source base station was received and prepared message, statistics belonged to the data volume to be sent of preserving for UE in the MAC_hs entity, and the data transmission situation of UE is added up to obtain average throughput, obtained remaining transmitting time, sent to RNC.Send mode can be to give at source base station to increase a parameter of representing the residue transmitting time in the ready message of RNC, also can be that source base station is sent out a message of carrying the residue transmitting time specially to RNC.
Step 403:RNC stops to send data to source base station after receiving the residue transmitting time, and the renewal of Serving cell is carried out in the notification target base station, and target BS is finished and upgraded back ready for sending message informing RNC.
Step 404: according on the activationary time numerical value must greater than the residue transmitting time principle, RNC is the source base station allocation activation time, and activationary time is sent to target BS and UE.
Step 405:UE finishes service cell updating, sends message to RNC.RNC stops to receive data from the source Serving cell in the activationary time moment corresponding, begins to receive data from target serving district.
Step 406: service cell updating finishes.
The difference of two specific embodiments is among the embodiment 1 it is that source base station is added up data volume to be sent, sends to RNC, calculates the residue transmitting time by RNC.Then be to add up data volume to be sent in embodiment 2, oneself calculate the residue transmitting time, send to RNC again by source base station.Both belong to for realizing a goal of the invention, two technical schemes that are associated.
The application of the invention, before the activation moments that at source base station the MAC_hs entity is resetted, target BS sends data, the data that are stored in the MAC_hs entity of source base station can in time pass to the user, thus the loss of data that causes when effectively avoiding HSDPA user between the base station, to carry out service cell updating.Greater than the activationary time of residue transmitting time, guarantee that remaining data correctly sends to the user to data between the activationary time of service cell updating arrives, avoid loss of data on the RNC configuration numerical value.Therefore the present invention can rationally control the service cell updating process, improves service quality.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention.
Claims (6)
1. a method for controlling service cell updating is characterized in that, said method comprising the steps of:
A, radio network controller (RNC) send to upgrade to source base station prepares message;
The data volume to be sent of B, source base station statistics user UE sends to RNC;
C, RNC stop to send data to source base station, and the renewal of Serving cell is carried out in the notification target base station;
D, RNC are added up the average throughput of acquisition according to data volume to be sent in conjunction with situation that the UE data are sent and are obtained remaining transmitting time, greater than the activationary time of residue transmitting time, send to target BS and UE on the configuration numerical value;
E, UE finish service cell updating, and RNC stops to receive data from the source Serving cell in described activationary time moment corresponding, begins to receive data from target serving district.
2. method for controlling service cell updating as claimed in claim 1 is characterized in that, source base station is added up the data volume to be sent of preserving for described UE in the high speed media access control entity that the data volume to be sent of UE is source base station statistics UE among the described step B.
3. method for controlling service cell updating as claimed in claim 1 is characterized in that: the mode that sends to RNC among the described step B is to send to the parameter that increases a representative data volume to be sent in the ready message of RNC at source base station.
4. method for controlling service cell updating is characterized in that: said method comprising the steps of:
A, RNC send to upgrade to source base station and prepare message;
The data volume to be sent of b, source base station statistics UE is added up the average throughput of acquisition according to described data volume to be sent in conjunction with situation that the UE data are sent and is obtained remaining transmitting time, sends to RNC;
C, RNC stop to send data to source base station, and the renewal of Serving cell is carried out in the notification target base station;
D, RNC be on the source base station configuration numerical value greater than the activationary time of described residue transmitting time, activationary time is sent to target BS and UE;
E, UE finish service cell updating, and RNC stops to receive data from the source Serving cell in described activationary time moment corresponding, begins to receive data from target serving district.
5. method for controlling service cell updating as claimed in claim 4 is characterized in that: source base station is added up the data volume to be sent of preserving for described UE in the high speed media access control entity that the data volume to be sent of UE is source base station statistics UE among the described step b.
6. method for controlling service cell updating as claimed in claim 4 is characterized in that: the mode that sends to RNC among the described step b is to send to the parameter that increases a representative residue transmitting time in the ready message of RNC at source base station.
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| CNB2005100362639A CN100411483C (en) | 2005-07-28 | 2005-07-28 | Method for controlling service cell updating |
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| CNB2005100362639A CN100411483C (en) | 2005-07-28 | 2005-07-28 | Method for controlling service cell updating |
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| CN100411483C true CN100411483C (en) | 2008-08-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100446607C (en) * | 2006-11-10 | 2008-12-24 | 华为技术有限公司 | Upgrade method, device and system for wireless network controller |
| WO2016000114A1 (en) * | 2014-06-30 | 2016-01-07 | 华为技术有限公司 | Method, system and related devices for making statistics on redirection performance indicators |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004057887A1 (en) * | 2002-12-20 | 2004-07-08 | Matsushita Electric Industrial Co., Ltd. | Method for cell modification in mobile communication system |
| CN1585316A (en) * | 2003-08-19 | 2005-02-23 | 北京三星通信技术研究有限公司 | Method for building public transmitting channel for MBMS service |
| CN1647410A (en) * | 2002-04-05 | 2005-07-27 | 美商内数位科技公司 | Node B and rnc actions during a serving hsdpa cell change |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1647410A (en) * | 2002-04-05 | 2005-07-27 | 美商内数位科技公司 | Node B and rnc actions during a serving hsdpa cell change |
| WO2004057887A1 (en) * | 2002-12-20 | 2004-07-08 | Matsushita Electric Industrial Co., Ltd. | Method for cell modification in mobile communication system |
| CN1585316A (en) * | 2003-08-19 | 2005-02-23 | 北京三星通信技术研究有限公司 | Method for building public transmitting channel for MBMS service |
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Effective date of registration: 20211222 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |