CN100531462C - Method for updating HS-DSCH service residence - Google Patents
Method for updating HS-DSCH service residence Download PDFInfo
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- CN100531462C CN100531462C CNB2006100611481A CN200610061148A CN100531462C CN 100531462 C CN100531462 C CN 100531462C CN B2006100611481 A CNB2006100611481 A CN B2006100611481A CN 200610061148 A CN200610061148 A CN 200610061148A CN 100531462 C CN100531462 C CN 100531462C
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Abstract
The method comprises the following capacity controlling steps: according to the rate measurement value of queue output reported by physical layer, NodeB estimates the data capable of being transmitted to the user device before the original base station is enabled in order to control the traffic allocation of MAC-hs (a logical entity in media access control layer).
Description
Technical field
The present invention relates to a kind of HS-DSCH (high-speed downstream shared data channel) service cell updating method, relate in particular to and reduce data packet loss and the continual method of number biography in a kind of HS-DSCH service cell updating process.
Background technology
After UE (subscriber equipment) made a call, RRC (radio resource control) was mapped to different transmission channels according to type of service and mapping policy with business.If business is mapped on the HS-DSCH channel, when UE moved in the minizone, according to Soft Handover Algorithm, the DCH channel of following of HS-DSCH carried out the corresponding soft handover of frequency together.Because for same UE, the Serving cell of carrying HS-DSCH can only have one.From the angle of system, HS-DSCH is carried on the best sub-district of signal quality, can obtain higher throughput.Therefore in the signal quality variation of the Serving cell of carrying HS-DSCH, and when other cell signal quality grows are arranged, according to the switchover policy of HSDPA, with the Serving cell business of HS-DSCH from original service cell updating to other sub-districts.
As shown in Figure 1 be: existing flow process of carrying out the service cell updating of HS-DSCH between different NodeB comprises the steps:
1.RNC the NodeB under the Serving cell of former carrying HS-DSCH sends Radio Link ReconfigurationPrepare (radio link reconfiguration preparation) message, prepares to delete the resource that HS-DSCH takies in former sub-district.
2. the NodeB under the Serving cell of former carrying HS-DSCH returns Radio Link ReconfigurationReady (radio link reconfiguration finishes) message to RNC.
3.RNC the target serving district to HS-DSCH sends Radio Link Reconfiguration Prepare (radio link reconfiguration preparation) message, to increase the HS-DSCH resource among the NodeB under the target serving district of HS-DSCH.
4.HS-DSCH target serving district under NodeB return Radio Link Reconfiguration Ready (radio link reconfiguration finishes) message.
5.RNC the NodeB under the Serving cell of former carrying HS-DSCH sends Radio Link ReconfigurationCommit (radio link reconfiguration submission) message.Comprise activationary time in the message.At activationary time constantly, the NodeB under the Serving cell of former carrying HS-DSCH stops to send data, and the MAC-hs of NodeB resets.NodeB under the target serving district of HS-DSCH begins to send data.
6.RNC the NodeB under the target serving district of HS-DSCH sends Radio Link ReconfigurationCommit (radio link reconfiguration submission) message.Comprise activationary time in the message.At activationary time constantly, the NodeB under the Serving cell of former carrying HS-DSCH stops to send data, and the MAC-hs of NodeB resets.NodeB under the target serving district of HS-DSCH begins to send data.
Comprise activationary time and the MAC-hs indication that resets for UE. message 7.RNC send Physical Channel Reconfiguration (physical channel is reshuffled) message.
8. at activationary time constantly, the MAC-hs of UE resets.UE stops to receive data from the Serving cell of former carrying HS-DSCH, begins to receive data .UE from the target serving district of HS-DSCH and sends Physical ChannelReconfiguration Complete (physical channel is reshuffled and finished) message to RNC.
During NodeB between the former sub-district in the service cell updating process of HS-DSCH and Target cell belong to not respectively,, can cause the loss of data in the MAC-hs buffer memory of NodeB because the MAC-hs of renewal process Central Plains NodeB need reset.For avoiding loss of data, in the service cell updating flow process, introduce flow control process, flow process as shown in Figure 2: NodeB uses CapacityAllocation (volume controlled) message to notify RNC can send how many data.Be that NodeB passes through the cell HS-DSCH Credits of CapacityAllocation (volume controlled) control frame is arranged to 0, can indicate RNC to stop to send data to NodeB, the transmission of this volume controlled information can adopt periodic mode side to send, and perhaps sends immediately when the formation buffer memory changes.The message structure of Capacity Allocation as shown in Figure 3.The cell HS-DSCH Credits of Capacity Allocation message (HS-DSCH mandate) has indicated the number of the MAC-d PDU (MAC-d protocol Data Unit) of MAC-d (logic entity of the media access control layer) stream that allows the RNC transmission.
But there is following defective in such scheme: waiting in a period of time that service cell updating comes into force (before the activationary time), UE still can receive data from former NodeB, but former NodeB may not have data distributing because stopping assignment of traffic, is interrupted thereby cause number to pass.
Summary of the invention
Technical problem to be solved by this invention is to provide the method for the HS-DSCH service cell updating between a kind of different N odeB, and with the loss of data in the minimizing service cell updating process, and it is uninterrupted to guarantee that number passes.
In order to solve the problems of the technologies described above, the present invention has adopted following technical proposals: a kind of HS-DSCH service cell updating method of the present invention,
The NodeB of RNC under the Serving cell of former carrying HS-DSCH sends radio link reconfiguration and prepares message;
NodeB under the Serving cell of former carrying HS-DSCH receives radio link reconfiguration preparation message;
NodeB under the Serving cell of former carrying HS-DSCH returns the radio link reconfiguration message that finishes to RNC;
RNC sends radio link reconfiguration preparation message to the target serving district of HS-DSCH;
NodeB under the target serving district of HS-DSCH returns the radio link reconfiguration message that finishes;
After NodeB under the Serving cell of described former carrying HS-DSCH receives that radio link reconfiguration is prepared message, returning radio link reconfiguration to RNC finishes before the message, also comprise the volume controlled step, wherein, this volume controlled step is: the formation output speed measured value that the NodeB under the Serving cell of former carrying HS-DSCH reports according to physical layer is estimated before original hase stands in activationary time can also control the assignment of traffic of MAC-hs to the data of subscriber equipment transmission.
Further, described volume controlled step is specially: the formation output speed measured value that the NodeB under the Serving cell of former carrying HS-DSCH reports according to physical layer, the data total amount that can send in estimation activationary time and the current time difference, this data total amount equals formation output speed measured value and multiply by activation duration (activationary time and current time are poor), comparing data total amount and current MAC-hs formation buffer storage length:
If 1 formation buffer storage length stops assignment of traffic more than or equal to the data total amount, the Parameter H S-DSCH of control frame authorizes and is arranged to 0, and the NodeB that indication RNC stops under the Serving cell of former carrying HS-DSCH sends data;
If 2 formation buffer storage lengths are then sent out the capacity allocation control frame to RNC less than the data total amount, put Parameter H S-DSCH mandate=(data total amount-output speed measured value * activation duration)/MAC-hs PDU (MAC-hs protocol Data Unit) length of control frame.
The present invention estimates the data that NodeB under the Serving cell of former carrying HS-DSCH can also send to UE before activationary time according to the output speed measured value of formation, control the assignment of traffic of MAC-hs, thereby reduce in the service cell updating process of HS-DSCH because the loss of data that the MAC-hs (logic entity of media access control layer) of the NodeB under the Serving cell of former carrying HS-DSCH resets and causes, and it is uninterrupted to guarantee that number passes process.
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that to technical problem to be solved by this invention, feature and advantage are carried out more deep understanding.
Description of drawings
Fig. 1 is the service cell updating flow process of HS-DSCH between existing different N odeB.
Fig. 2 is existing data traffic control flow.
Fig. 3 is the message structure of existing volume controlled.
Fig. 4 is the service cell updating schematic flow sheet of HS-DSCH between different N odeB of the present invention.
Embodiment
In order to reduce the loss of data in the service cell updating process, and it is uninterrupted to guarantee that number passes, the invention provides a kind of new HS-DSCH service cell updating method, comprise that formation output speed measured value that volume controlled step: NodeB reports according to physical layer estimates that original hase stands in before the activationary time data that can also send to subscriber equipment, control the assignment of traffic of MAC-hs.
In order further to understand the present invention, a specific embodiment that provides below in conjunction with Fig. 4 elaborates to the inventive method: the service cell updating method of HS-DSCH specifically comprises the steps: between a kind of different N odeB
A) NodeB of RNC under the Serving cell of former carrying HS-DSCH sends Radio LinkReconfiguration Prepare (radio link reconfiguration preparation) message, prepares to delete the resource that HS-DSCH takies in former sub-district.
B) after the NodeB under the Serving cell of former carrying HS-DSCH receives Radio Link ReconfigurationPrepare (radio link reconfiguration preparation) message, return volume controlled message to RNC: according to the QueueVout (formation output speed measured value) that physical layer reports, the data total amount that can send in estimation activationary time and the current time difference activeTime (activation duration)
DataCnt=QueueVout*activeTime, the relatively QueueLen (formation buffer storage length) of DataCnt (data total amount) and current MAC-hs:
1) if QueueLen 〉=DataCnt stops assignment of traffic, the Parameter H S-DSCHCredits of control frame (HS-DSCH mandate) is arranged to 0, and indication RNC stops to send data to NodeB.
2), put the Parameter H S-DSCH Credits=(DataCnt-QueueLen * activeTime)/MAC-hs PDULength (MAC-hs protocol Data Unit length) of control frame if QueueLen＜DataCnt then sends out the capacity allocation control frame to RNC;
C) NodeB under the Serving cell of former carrying HS-DSCH returns Radio Link ReconfigurationReady (radio link reconfiguration finishes) message to RNC.
D) RNC sends Radio Link Reconfiguration Prepare (radio link reconfiguration preparation) message to the target serving district of HS-DSCH, to increase the HS-DSCH resource among the NodeB under the target serving district of HS-DSCH.
E) NodeB under the target serving district of HS-DSCH returns Radio Link Reconfiguration Ready (radio link reconfiguration finishes) message.
F) NodeB of RNC under the Serving cell of former carrying HS-DSCH sends Radio LinkReconfiguration Commit (radio link reconfiguration submission) message.Comprise activationary time in the message.At activationary time constantly, the NodeB under the Serving cell of former carrying HS-DSCH stops to send data, and the MAC-hs of NodeB resets.NodeB under the target serving district of HS-DSCH begins to send data.
G) NodeB of RNC under the target serving district of HS-DSCH sends Radio Link ReconfigurationCommit (radio link reconfiguration submission) message.Comprise activationary time in the message.At activationary time constantly, the NodeB under the Serving cell of former carrying HS-DSCH stops to send data, and the MAC-hs of NodeB resets.NodeB under the target serving district of HS-DSCH begins to send data.
H) RNC sends Physical Channel Reconfiguration (physical channel is reshuffled) message and comprises activationary time and the MAC-hs indication that resets for UE. message.
I) at activationary time constantly, the MAC-hs of UE resets.UE stops to receive data from the Serving cell of former carrying HS-DSCH, begins to receive data .UE from the target serving district of HS-DSCH and sends Physical Channel (physical channel is reshuffled and finished) Reconfiguration Complete message to RNC.
What above-mentioned specific embodiment was described is the service cell updating of HS-DSCH between different N odeB, and obviously the present invention also can be applicable to the service cell updating of same NodeB, as long as two minizones before and after switching do not take place by moving of data.Most preferred embodiment of the present invention is illustrated, and various variations or the remodeling made according to enlightenment of the present invention by those of ordinary skills all will drop in protection scope of the present invention.
Claims (6)
1, a kind of HS-DSCH service cell updating method comprises:
The NodeB of RNC under the Serving cell of former carrying HS-DSCH sends radio link reconfiguration and prepares message;
NodeB under the Serving cell of former carrying HS-DSCH receives radio link reconfiguration preparation message;
NodeB under the Serving cell of former carrying HS-DSCH returns the radio link reconfiguration message that finishes to RNC;
RNC sends radio link reconfiguration preparation message to the target serving district of HS-DSCH;
NodeB under the target serving district of HS-DSCH returns the radio link reconfiguration message that finishes;
It is characterized in that: after the NodeB under the Serving cell of described former carrying HS-DSCH receives that radio link reconfiguration is prepared message, returning radio link reconfiguration to RNC finishes before the message, comprise the volume controlled step, described volume controlled step is: formation output speed measured value that the NodeB under the Serving cell of former carrying HS-DSCH reports according to physical layer and the time difference of activationary time and current time estimate former carrying HS-DSCH Serving cell under NodeB can also be before activationary time to the data total amount of subscriber equipment transmission, and, control the assignment of traffic of MAC-hs according to the comparative result of described data total amount and current MAC-hs formation buffer storage length.
2, HS-DSCH service cell updating method according to claim 1, it is characterized in that, described volume controlled step is specially: the formation output speed measured value that the NodeB under the Serving cell of former carrying HS-DSCH reports according to physical layer, estimation activationary time and the data total amount that can send in the time difference of current time, this data total amount equals formation output speed measured value and multiply by the activation duration, described activation duration refers to the time difference of described activationary time and current time, comparing data total amount and current MAC-hs formation buffer storage length:
1) if the formation buffer storage length more than or equal to the data total amount, stops assignment of traffic, the Parameter H S-DSCH of control frame authorizes and is arranged to 0, and the NodeB that indication RNC stops under the Serving cell of former carrying HS-DSCH sends data;
2) if the formation buffer storage length less than the data total amount, then send out the capacity allocation control frame to RNC, put Parameter H S-DSCH mandate=(data total amount-output speed measured value * activation duration)/MAC-hs PDU length of control frame, described MAC-hs PDU refers to the MAC-hs protocol Data Unit.
3, HS-DSCH service cell updating method according to claim 4, it is characterized in that, comprise the steps: that also the NodeB of RNC under the Serving cell of former carrying HS-DSCH sends radio link reconfiguration and submit message to, comprise activationary time in the message, at activationary time constantly, NodeB under the Serving cell of former carrying HS-DSCH stops to send data, the MAC-hs of NodeB under the Serving cell of former carrying HS-DSCH resets, and the NodeB under the target serving district of HS-DSCH begins to send data.
4, HS-DSCH service cell updating method according to claim 5, it is characterized in that, comprise the steps: that also the NodeB of RNC under the target serving district of HS-DSCH sends radio link reconfiguration and submit message to, comprise activationary time in the message, at activationary time constantly, NodeB under the Serving cell of former carrying HS-DSCH stops to send data, the MAC-hs of NodeB under the Serving cell of former carrying HS-DSCH resets, and the NodeB under the target serving district of HS-DSCH begins to send data.
5, HS-DSCH service cell updating method according to claim 6 is characterized in that, comprises the steps: that also RNC sends the physical channel reconfiguration message to UE, and message comprises activationary time and the MAC-hs indication that resets.
6, HS-DSCH service cell updating method according to claim 7, it is characterized in that, also comprise the steps: constantly at activationary time, the MAC-hs of UE resets, UE stops to receive data from the Serving cell of former carrying HS-DSCH, begin to receive data from the target serving district of HS-DSCH, UE transmission physical channel is reshuffled and is finished message to RNC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100611481A CN100531462C (en) | 2006-06-14 | 2006-06-14 | Method for updating HS-DSCH service residence |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100611481A CN100531462C (en) | 2006-06-14 | 2006-06-14 | Method for updating HS-DSCH service residence |
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| CN1984453A CN1984453A (en) | 2007-06-20 |
| CN100531462C true CN100531462C (en) | 2009-08-19 |
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| CNB2006100611481A Expired - Fee Related CN100531462C (en) | 2006-06-14 | 2006-06-14 | Method for updating HS-DSCH service residence |
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| CN103891348A (en) | 2012-09-29 | 2014-06-25 | 华为技术有限公司 | Method and related device for resetting high-speed medium access control entity |
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