CN101409903A - Method and system for improving soft switching interruption time delay based on flow control - Google Patents
Method and system for improving soft switching interruption time delay based on flow control Download PDFInfo
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Abstract
The invention discloses a method for improving soft handover interruption time delay based on control flux and a system thereof. The method comprises the steps as follows: before the soft handover interruption, when a current service plot processes a signaling sent by RNC, a time interval before an effective time of the soft handover takes effect is obtained; the flux of data sent by RNC is matched and controlled from the current time to the time when the soft handover takes effect, so as to improve the soft handover interruption time delay; a channel is switched to a target plot after the soft handover takes effect; and the data is sent from the target plot. As the flux of the data sent by a wireless network controller is matched and controlled by steps, before the activation time of the effective time of the soft handover is reached, the invention not only ensures that the sending of the data sent from the original plot is basically completed, but also prevents the original plot from stopping sending the data too early, thus reducing the soft handover interruption time delay of HSDPA service, avoiding the user losing data packet due to the soft handover and better meets the Qos requirement of real time service.
Description
Technical field
The present invention relates to the HSDPA service technique and the system field thereof of communications industry WCDMA or TD-SCDMA network, in particular, what relate to is a kind of method and system thereof that improves soft handover interruption time delay based on the control flow.
Background technology
HSDPA (High Speed Downlink Packages Access, hereinafter to be referred as HSDPA) high speed downlink packet access technology, be to realize improving the of paramount importance technology of WCDMA network high-speed downlink message transmission rate, be that 3GPP puts forward in order to satisfy the asymmetric demand of up-downgoing data service in the R5 agreement, it can not change on the WCDMA system network architecture basis of having built, improve user's downstream data traffic speed greatly, theoretical maximum can reach 14.4Mbps.
But the HSDPA technical characterstic has comprised that Adaptive Modulation AMC and HARQ mix automatic repeat requests agreement, and the same moment when soft handover exists has only a Serving cell to send data to the user, and in fact in other words, HSDPA does not have soft handover.And in the process that the Serving cell of soft handover switches, need all to empty that all do not have the data cached of end of transmission in former Serving cell, thereby cause the interruption of HSDPA business, soft handover interruption time delay increases, user's face lost data packets, particularly the business of having relatively high expectations for QOS has very big influence, for example streaming media service and VoIP business.
Therefore, prior art still awaits improving and development.
Summary of the invention
The objective of the invention is to, a kind of method and system thereof that improves soft handover interruption time delay based on the control flow is provided, avoid because soft handover causes user's face lost data packets, reduce the professional soft handover interruption time delay of HSDPA, better satisfy the Qos requirement of real time business.
Technical scheme of the present invention is as follows:
A kind of based on controlling the method that flow improves soft handover interruption time delay, may further comprise the steps:
Before A, the soft handover interruption channel, current service cell is handled the signaling that radio network controller is sent, and obtains time interval of coming into force and constantly coming into force apart from soft handover;
B, from current time play soft handover come into force constantly end during, the described radio network controller of coupling control sends the flow of data, to improve soft handover interruption time delay;
C, after soft handover comes into force, channel is switched to Target cell, and sends data from described Target cell.
Described method, wherein, described steps A specifically comprises:
A1, finish the processing of described signaling, obtain the described soft handover activationary time constantly that comes into force with the control system of described radio network controller interconnection;
A2, calculate the time interval that current time comes into force apart from this activationary time according to the field of described activationary time.
Described method, wherein, described step B specifically comprises:
B1, the current flow control mode of eating dishes without rice or wine to send data volume speed of staged design coupling;
B2, conclude that according to current time described radio network controller sends the stage that moment of data belongs to;
B3, determine to implement send the flow control mode of data by the affiliated stage, the data volume that control sends is to reduce soft handover interruption time delay, residing channel condition when being adaptive to soft handover.
Described method, wherein, staged design specifically comprises the Flow Control design operation of phase I among the described step B1:
B111, Flow Control are added up the data volume that described radio network controller sends in the predetermined amount of time before calculating, and stipulate the higher limit of this data volume;
B112, Flow Control cycle in Flow Control counting period is set, calculates the data stacking amount in the current Flow Control cycle;
B113, a plurality of continuous Flow Control cycle reduce data volume to be sent when the interior data stacking amount of being calculated is all greater than described higher limit, send Flow Control and distribute frame to described radio network controller.
Described method, wherein, the Flow Control of phase I design concrete operations also comprise among the described step B1:
B121, Flow Control are added up the data volume that described radio network controller sends in the predetermined amount of time before calculating, and stipulate the lower limit of this data volume;
B122, Flow Control cycle in Flow Control counting period is set, calculates the data stacking amount in the current Flow Control cycle;
B123, a plurality of continuous Flow Control cycle increase data volume to be sent when the interior data stacking amount of being calculated is all less than described lower limit, send Flow Control and distribute frame to described radio network controller.
Described method, wherein, staged design specifically comprises the Flow Control design operation of second stage among the described step B1:
B131, Flow Control are added up the data volume that described radio network controller sends in the predetermined amount of time before calculating, and stipulate the target door limit value of this data volume;
B132, Flow Control cycle in Flow Control counting period is set, calculates the data stacking amount in the current Flow Control cycle;
Adjust data volume to be sent when B133, the data stacking amount of being calculated in a plurality of continuous Flow Control cycle are not equal to described target door limit value, send Flow Control and distribute frame to described radio network controller.
Described method, wherein, staged design specifically comprises the Flow Control design operation of phase III among the described step B1:
B14, transmission Flow Control stop frame to described radio network controller.
Described method, wherein, the concrete operations in stage comprise under concluding among the described step B2:
B21, the duration of setting the described phase III and the duration of described second stage, and calculate the two and value;
B22, deduct described and value with the described time interval, obtain the duration of described phase I;
B23, judge the stage that current time belongs to according to distance soft handover time interval of constantly coming into force of coming into force.
A kind of system that improves soft handover interruption time delay based on the control flow, comprise a radio network controller, be used to send the soft handover signaling, wherein, described system also comprise one with the signaling processing module of described radio network controller communication and with an interconnected control flow module and the soft switching module of described signalling module; Described signalling module is used for the signaling sent at soft handover interruption channel pre-treatment radio network controller, and obtains time interval of coming into force and constantly coming into force apart from soft handover; Described control flow module be used for from the current time to the soft handover, coming into force constantly during, the described radio network controller of coupling control sends the flow of data, to improve soft handover interruption time delay; Described soft switching module is used for coming into force when constantly coming into force at soft handover, channel is switched to Target cell, and send data from described Target cell.
Described system, wherein, described control flow module specifically comprises phase I Flow Control design submodule, second stage Flow Control design submodule and phase III Flow Control design submodule, wherein:
Described phase I Flow Control design submodule reduces data volume to be sent when being used for the data stacking amount calculated in a plurality of continuous Flow Control cycles all greater than described higher limit, sending Flow Control distributes frame to described radio network controller, described data stacking amount increases data volume to be sent during all less than described lower limit, sends Flow Control and distributes frame to described radio network controller;
Adjust data volume to be sent when the data stacking amounts that described second stage Flow Control design submodule is used for being calculated in a plurality of continuous Flow Control cycles are not equal to described target door limit value, send Flow Control and distribute frame to described radio network controller;
Described phase III Flow Control design submodule is used to send Flow Control and stops frame to described radio network controller.
A kind of method and system thereof that improves soft handover interruption time delay based on the control flow provided by the present invention, owing in soft switching process, implemented the flow of coupling control radio network controller transmission data stage by stage, come into force before constantly activationary time reaches at soft handover, both guaranteed to send complete substantially from the data that former Serving cell sends, prevented to stop too early former Serving cell again and sent data, self adaptation the soft handover channel condition; And after activationary time arrived, user's face can receive data from new leg immediately, thereby had reduced the professional soft handover interruption time delay of HSDPA, had avoided better having satisfied the Qos requirement of real time business because soft handover causes user's face lost data packets.
Description of drawings
Fig. 1 is the structural representation of system modular of the present invention.
Embodiment
Below with reference to accompanying drawing embodiment and the preferred embodiment that the present invention is based on the control flow and improve soft handover interruption time delay described in detail.
A kind of method and system thereof that improves soft handover interruption time delay based on the control flow of the present invention, main core point is, realizes on the MAC-hs entity that in Node-B (also can be write as Node B or NodeB) novel flow control algorithm improves the professional soft handover interruption time-delay of HSDPA to the flow control that former Serving cell carries out stage by stage in soft switching process; Be well known to those skilled in the art as for technology such as HSDPA, Node-B, MAC-hs, UE, RNC and Qos, do not repeat them here.
System of the present invention comprises that specifically as shown in Figure 1: one is used to send the radio network controller 110 of soft handover signaling; One with the signaling processing module 120 of described radio network controller 110 communications, be used for the signaling sent at soft handover interruption channel pre-treatment radio network controller 110, and obtain time interval of coming into force and constantly coming into force apart from soft handover; And with interconnected control flow module 130 and the soft switching module 140 of described signalling module, described control flow module 130 be used for from the current time to the soft handover, coming into force constantly during, the described radio network controller 110 of coupling control sends the flow of data, to improve soft handover interruption time delay; Described soft switching module 140 is used for coming into force when constantly coming into force at soft handover, channel is switched to Target cell, and send data from described Target cell.
Described control flow module 130 specifically comprises phase I Flow Control design submodule 131, second stage Flow Control design submodule 132 and phase III Flow Control design submodule 133, wherein:
Described phase I Flow Control design submodule 131 reduces data volume to be sent when being used for the data stacking amount calculated in a plurality of continuous Flow Control cycles all greater than described higher limit, sending Flow Control distributes frame to described radio network controller 110, described data stacking amount increases data volume to be sent during all less than described lower limit, sends Flow Control and distributes frame to described radio network controller 110;
Adjust data volume to be sent when the data stacking amounts that described second stage Flow Control design submodule 132 is used for being calculated in a plurality of continuous Flow Control cycles are not equal to described target door limit value, send Flow Control and distribute frame to described radio network controller 110;
Described phase III Flow Control design submodule 133 is used to send Flow Control and stops frame to described radio network controller 110.
Because former Serving cell is receiving that wireless link reconfigured submission constantly, up to soft handover come into force constantly during this period of time in, should guarantee can not send data, guarantee can when soft handover comes into force constantly, not also have a large amount of outgoing data again because of the former Serving cell that data volume too much causes because of the less former Serving cell of cutting off too early that causes of metadata cache; And changes in channel conditions is comparatively violent when taking into account soft handover simultaneously, therefore how to carry out flow is estimated and the flow control outbalance that just seems.
The embodiment of the inventive method comprises following flow process:
The first step, former Serving cell obtain soft handover by " wireless link reconfigured submission " message and come into force constantly; Before being the soft handover interruption channel, current service cell is handled the signaling that radio network controller (RNC) (RadioNetwork Controller is hereinafter to be referred as RNC) is sent, and obtains time interval of coming into force and constantly coming into force apart from soft handover; Specifically, finish the processing of described signaling, obtain the described soft handover activationary time constantly that comes into force, calculate the time interval that current time comes into force apart from this activationary time according to the field of described activationary time with the control system of described radio network controller interconnection.
Second step, from current time play soft handover come into force constantly end during, the described radio network controller of coupling control sends the flow of data, to improve soft handover interruption time delay; In former Serving cell comes into force constantly during this period of time from the current time to the soft handover, change the data volume that radio network controller (RNC) sends to Node-B according to current transmission rate and the current time of eating dishes without rice or wine, channel condition of living in when being adaptive to soft handover, finally make it not have the outgoing data amount to give former Serving cell constantly to switching to come into force, mainly be by accurate flow control mode notice RNC, control it and issue the size of data volume during this period of time at soft handover, make it be unlikely to former Serving cell and stop paying out data and cause interrupting time-delay too early, or stop to such an extent that cause evening former Serving cell to have data not to be sent completely excessively at switching instant.
The 3rd step, after soft handover comes into force, channel is switched to Target cell, and sends data from described Target cell; After UE switches to Target cell, will send data to UE from new Serving cell.
From above-mentioned flow process as can be known, switch to from former Serving cell target serving district during this period of time in, according to the current time and the transmitting capacity of eating dishes without rice or wine, control RNC and send to the Node-B data volume, it is very few to make its former Serving cell be unlikely to data volume, causes stopping too early former Serving cell and sends data; Avoid data volume too much on the other hand, former Serving cell has mass data need send to UE when causing soft handover.The software of this method is realized simple, also is adaptive to the different channels condition simultaneously, has avoided taking the method for imposing uniformity without examining individual cases.
With the professional soft handover of HSDPA between Node-B is example, roughly introduces earlier soft switching process between the professional Node-B of HSDPA:
S010, user equipment (UE) measure the quality of homogeneous-frequency adjacent-domain in the Neighboring Cell List according to the measurement control that radio network controller (RNC) issues, and judge with incident 1D frequently whether take place, and give radio network controller (RNC) if reporting measurement reports 1D incident takes place then;
S020, radio network controller (RNC) carry out the Serving cell change according to the incident and the decision of Radio Resource situation of reported by user equipment UE;
S030, radio network controller (RNC) send NBAP message Radio Link ReconfigurationPrepare wireless link and reconfigure preparation to current service Node B Serving Node B;
The Radio Link RL of S040, current service Node B Serving Node B begins to prepare to discharge high speed shared channels HS-DSCH related resource, returns NBAP message Radio Link ReconfigurationReady wireless link and reconfigures the ready radio network controller (RNC) of giving;
S050, radio network controller (RNC) send NBAP message Radio Link ReconfigurationPrepare wireless link and reconfigure preparation to destination service Node B Target Node B;
Set up high speed shared channels HS-DSCH related resource during the Radio Link RL reprovision of S060, destination service Node B Target Node B, return NBAP message Radio Link ReconfigurationReady wireless link and reconfigure the ready radio network controller (RNC) of giving;
The ALCAP Iub bearer context for data transmission of the high speed shared channels HS-DSCH special use of the Radio Link RL of S070, destination service Node B Target Node B is set up;
S080, current service radio network controller Serving RNC transmission NBAP message RadioLink Reconfiguration Commit wireless link reconfigures hands current service Node B Serving Node B, be with activationary time CFN in this message, stop after this arrives constantly sending data to this user equipment (UE);
S090, current service radio network controller Serving RNC transmission NBAP message RadioLink Reconfiguration Commit wireless link reconfigures hands destination service Node B Target Node B, be with activationary time CFN in this message, when this arrived constantly, beginning sent data to user equipment (UE).
And method of the present invention mainly concentrates on the S080 process, and specific embodiment is as follows:
Current service radio network controller Serving RNC transmission NBAP message Radio LinkReconfiguration Commit wireless link reconfigures hands current service Node B ServingNode B, be with activationary time CFN in this message, calculate the time interval T that current time same distance activationary time comes into force according to the CFN field;
Determine the three phases that Flow Control is calculated according to current time, determine to be in which of Flow Control in stage, adopt different Flow Control computational methods according to different phase then, three phases described below, determine earlier the duration in second and third stage, the phase I duration is that the first step calculates time interval T and deducts Flow Control second stage duration and phase III duration; Judge in which stage according to time interval T subsequently:
1, Flow Control is calculated the phase I: every process Flow Control counting period is just calculated Flow Control one time, at interval with reference to being set to 20 milliseconds; A period of time sends to UE data volume DataStreamOut before the statistical computation, and this section time reference is set to 20ms.This in stage introduce upper limit High as 80% and lower limit Low carry out the Flow Control design as 20% notion:
1) calculates Flow Control n time continuously, with reference to n is set is 2 times, all current data accumulating amounts are during all greater than DataStreamOut*High, upper limit High suitably will be reduced deltaHigh and calculate Flow Control distribution frame: suppose that it is DataStreamOut that the next Flow Control cycle sends data volume as 10%, with reference to being set to 20 milliseconds, in the cycle data stacking amount is dropped to DataStreamOut*High in next Flow Control;
2) calculate Flow Control n time continuously, all current data accumulating amounts are during all less than DataStreamOut*Low, just will suitably Low be raised deltaLow calculates Flow Control as 5% and distributes frame: suppose that it is DataStreamOut that next TimeStatic sends data volume, in the cycle data stacking amount is elevated to DataStreamOut*Low in next Flow Control;
Calculate the input data volume in next Flow Control cycle, notice RNC.It is to guarantee that this stage UE has data dispatch that this stage Flow Control is calculated primary goal, and by-end is that too many data stacking is not arranged;
2, Flow Control is calculated second stage: a period of time sends to UE data volume DataStreamOut before the statistical computation, and with reference to being set to 20ms, every then Flow Control counting period is calculated a Flow Control, also is 20ms with reference to being provided with.This stage introduces and goes up Lower Threshold is that a target gate Aim calculates Flow Control distribution frame as 20%: suppose that it is DataStreamOut that the next Flow Control cycle sends data volume, with reference to being set to 20ms, in the next Flow Control cycle current data accumulating amount is controlled at DataStreamOut*Aim, calculate Flow Control and distribute frame to give RNC, guarantee that simultaneously the current data amount is sent completely in second stage as far as possible.
This stage main target is in being controlled at data more among a small circle as far as possible, and by-end is that each all has the data volume scheduling constantly when guaranteeing scheduling, and Flow Control is calculated the second stage duration with reference to being set to 200ms;
3, Flow Control is calculated the phase III: send Flow Control in this stage and stop frame to described radio network controller.Mainly be to consider, and guarantee when soft handover that former Serving cell does not have the outgoing data amount just to introduce for this UE in soft handover final stage channel condition instability.Check that current service cell still has data volume to be sent through after the described second stage, described radio network controller receives that described Flow Control stops to send data when stopping frame.This phase targets is to distribute the data volume that second stage does not distribute for a certain reason, and this stage Flow Control sends out and stop frame and give RNC, and notice RNC no longer issues data, and Flow Control is calculated the phase III duration with reference to being set to 80ms;
Current time belongs to the Flow Control design that described phase I duration is carried out the described phase I; Current time belongs to the Flow Control design that described second stage duration is carried out described second stage; Current time belongs to the Flow Control design that described phase III duration is carried out the described phase III.
The technology that realizes Flow Control in the above preferred embodiment stage by stage can adopt existing various possible schemes according to practical application, is well known to those skilled in the art, and also repeats no more at this.
A kind of method and the system thereof that improves soft handover interruption time delay based on the control flow that is provided in the specific embodiment of the invention, owing in soft switching process, implemented the flow of coupling control radio network controller transmission data stage by stage, come into force before constantly activationary time reaches at soft handover, both guaranteed to send complete substantially from the data that former Serving cell sends, prevented to stop too early former Serving cell again and sent data, self adaptation the soft handover channel condition; And after activationary time arrived, user's face can receive data from new leg immediately, thereby had reduced the professional soft handover interruption time delay of HSDPA, had avoided better having satisfied the Qos requirement of real time business because soft handover causes user's face lost data packets.
Should be understood that, for those of ordinary skills, can be improved according to the explanation of such scheme or conversion that it is medium for example to be applied to More Soft Handoff, and all these improve and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1, a kind of based on controlling the method that flow improves soft handover interruption time delay, may further comprise the steps:
Before A, the soft handover interruption channel, current service cell is handled the signaling that radio network controller is sent, and obtains time interval of coming into force and constantly coming into force apart from soft handover;
B, from current time play soft handover come into force constantly end during, the described radio network controller of coupling control sends the flow of data, to improve soft handover interruption time delay;
C, after soft handover comes into force, channel is switched to Target cell, and sends data from described Target cell.
2, method according to claim 1 is characterized in that, described steps A specifically comprises:
A1, finish the processing of described signaling, obtain the described soft handover activationary time constantly that comes into force with the control system of described radio network controller interconnection;
A2, calculate the time interval that current time comes into force apart from this activationary time according to the field of described activationary time.
3, method according to claim 2 is characterized in that, described step B specifically comprises:
B1, the current flow control mode of eating dishes without rice or wine to send data volume speed of staged design coupling;
B2, conclude that according to current time described radio network controller sends the stage that moment of data belongs to;
B3, determine to implement send the flow control mode of data by the affiliated stage, the data volume that control sends is to reduce soft handover interruption time delay, residing channel condition when being adaptive to soft handover.
4, method according to claim 3 is characterized in that, staged design specifically comprises the Flow Control design operation of phase I among the described step B1:
B111, Flow Control are added up the data volume that described radio network controller sends in the predetermined amount of time before calculating, and stipulate the higher limit of this data volume;
B112, Flow Control cycle in Flow Control counting period is set, calculates the data stacking amount in the current Flow Control cycle;
B113, a plurality of continuous Flow Control cycle reduce data volume to be sent when the interior data stacking amount of being calculated is all greater than described higher limit, send Flow Control and distribute frame to described radio network controller.
5, method according to claim 4 is characterized in that, the Flow Control of phase I design concrete operations also comprise among the described step B1:
B121, Flow Control are added up the data volume that described radio network controller sends in the predetermined amount of time before calculating, and stipulate the lower limit of this data volume;
B122, Flow Control cycle in Flow Control counting period is set, calculates the data stacking amount in the current Flow Control cycle;
B123, a plurality of continuous Flow Control cycle increase data volume to be sent when the interior data stacking amount of being calculated is all less than described lower limit, send Flow Control and distribute frame to described radio network controller.
6, method according to claim 5 is characterized in that, staged design specifically comprises the Flow Control design operation of second stage among the described step B1:
B131, Flow Control are added up the data volume that described radio network controller sends in the predetermined amount of time before calculating, and stipulate the target door limit value of this data volume;
B132, Flow Control cycle in Flow Control counting period is set, calculates the data stacking amount in the current Flow Control cycle;
Adjust data volume to be sent when B133, the data stacking amount of being calculated in a plurality of continuous Flow Control cycle are not equal to described target door limit value, send Flow Control and distribute frame to described radio network controller.
7, method according to claim 6 is characterized in that, staged design specifically comprises the Flow Control design operation of phase III among the described step B1:
B14, transmission Flow Control stop frame to described radio network controller.
8, method according to claim 7 is characterized in that, the concrete operations in stage comprise under concluding among the described step B2:
B21, the duration of setting the described phase III and the duration of described second stage, and calculate the two and value;
B22, deduct described and value with the described time interval, obtain the duration of described phase I;
B23, judge the stage that current time belongs to according to distance soft handover time interval of constantly coming into force of coming into force.
9, a kind of system that improves soft handover interruption time delay based on the control flow, comprise a radio network controller, be used to send the soft handover signaling, it is characterized in that, described system also comprise one with the signaling processing module of described radio network controller communication and with an interconnected control flow module and the soft switching module of described signalling module; Described signalling module is used for the signaling sent at soft handover interruption channel pre-treatment radio network controller, and obtains time interval of coming into force and constantly coming into force apart from soft handover; Described control flow module be used for from the current time to the soft handover, coming into force constantly during, the described radio network controller of coupling control sends the flow of data, to improve soft handover interruption time delay; Described soft switching module is used for coming into force when constantly coming into force at soft handover, channel is switched to Target cell, and send data from described Target cell.
10, system according to claim 9 is characterized in that, described control flow module specifically comprises phase I Flow Control design submodule, second stage Flow Control design submodule and phase III Flow Control design submodule, wherein:
Described phase I Flow Control design submodule reduces data volume to be sent when being used for the data stacking amount calculated in a plurality of continuous Flow Control cycles all greater than described higher limit, sending Flow Control distributes frame to described radio network controller, described data stacking amount increases data volume to be sent during all less than described lower limit, sends Flow Control and distributes frame to described radio network controller;
Adjust data volume to be sent when the data stacking amounts that described second stage Flow Control design submodule is used for being calculated in a plurality of continuous Flow Control cycles are not equal to described target door limit value, send Flow Control and distribute frame to described radio network controller;
Described phase III Flow Control design submodule is used to send Flow Control and stops frame to described radio network controller.
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| CN2008102174464A CN101409903B (en) | 2008-11-06 | 2008-11-06 | Method and system for improving soft switching interruption time delay based on flow control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103703824A (en) * | 2013-03-05 | 2014-04-02 | 华为技术有限公司 | Treatment for business interruption and related device |
| CN112437474A (en) * | 2020-11-24 | 2021-03-02 | 维沃移动通信有限公司 | Information transmission method and information transmission device |
| CN113691827A (en) * | 2021-08-26 | 2021-11-23 | 维沃移动通信有限公司 | Media stream transmission method and device |
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2008
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103703824A (en) * | 2013-03-05 | 2014-04-02 | 华为技术有限公司 | Treatment for business interruption and related device |
| WO2014134789A1 (en) * | 2013-03-05 | 2014-09-12 | 华为技术有限公司 | Service interruption processing method and device thereof |
| CN103703824B (en) * | 2013-03-05 | 2017-07-14 | 华为技术有限公司 | The processing method and relevant apparatus of service disconnection |
| CN112437474A (en) * | 2020-11-24 | 2021-03-02 | 维沃移动通信有限公司 | Information transmission method and information transmission device |
| CN112437474B (en) * | 2020-11-24 | 2023-10-31 | 维沃移动通信有限公司 | Information transmission method and information transmission device |
| CN113691827A (en) * | 2021-08-26 | 2021-11-23 | 维沃移动通信有限公司 | Media stream transmission method and device |
| CN113691827B (en) * | 2021-08-26 | 2024-08-20 | 维沃移动通信有限公司 | Media stream transmission method and device |
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| CN101409903B (en) | 2011-05-11 |
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