CN100417286C - Updating method and device for high speed down shared channel service cell - Google Patents
Updating method and device for high speed down shared channel service cell Download PDFInfo
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- CN100417286C CN100417286C CNB2005100370086A CN200510037008A CN100417286C CN 100417286 C CN100417286 C CN 100417286C CN B2005100370086 A CNB2005100370086 A CN B2005100370086A CN 200510037008 A CN200510037008 A CN 200510037008A CN 100417286 C CN100417286 C CN 100417286C
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Abstract
The present invention provides a method and a device for updating a service subzone of a high-speed downlink shared channel, which is suitable for the mobile communication field. When a radio link reconfiguration preparation message sent by a radio network controller is received, an original base station loaded with the service subzone of the high-speed downlink shared channel sends a capacity configuration control frame to the radio network controller, and the user data quantity sent to the original base station by the radio network controller is controlled. The present invention controls data package transmission from RNC to an MAC-hs of Node Bs by adding a flow control process in the updating flow process of the service subzones of an HS-DSCH among various Node Bs, and the data quantity in the cache of an MAC-hs of the original Node B at the activation time moment is reduced, so that the loss of data in the cache caused by the resetting of the MAC-hs is reduced.
Description
Technical field
The invention belongs to moving communicating field, relate in particular to update method and base station equipment at high-speed downward sharing channel service residence.
Background technology
WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) standard can provide the message transmission rate of the highest 2Mbit/s, support packet switching and circuit switching at a high speed, and many business based on the internet can also be provided.Yet,, need system that higher transmission rate and delay still less are provided for such as downloading or Streaming Media class business.In order to satisfy these requirements, WCDMA has done improvement to air interface, introduced HSDPA (High Speed Downlink Packet Access, high speed downlink packet inserts) technology, can under the situation that does not change the WCDMA network configuration of having built, bring up to downstream data traffic speed the peak rate of 10Mbit/s.HSDPA is a kind of modulation and demodulation algorithm that 3GPP (ThirdGeneration Partnership Projects, third generation partnership project) proposes in order to satisfy the asymmetric demand of uplink and downlink data service in R5 (version of 3GPP) agreement.The HSDPA technology is at MAC (Medium Access Control, medium access control layer) layer has increased MAC-hs (high speed media access control) entity newly, MAC-hs is positioned at Node B (base station), is responsible for handling HARQ (hybrid ARQ, rapid mixing retransmits automatically) operation and fast dispatch algorithm.HS-DSCH (High Speed Downlink Shared Channel, high speed descending sharing channel) is responsible for transmitting user data under HSDPA.
After UE (User Equipment, subscriber equipment) made a call, RRC (Radio ResourcesControl, Radio Resource control) according to type of service and mapping policy, was mapped to different transmission channels with business.If business is mapped on the HS-DSCH channel, when UE moved in the minizone, according to Soft Handover Algorithm, DCH (Dedicated Channel, the dedicated channel) channel of following of HS-DSCH carried out the corresponding soft handover of frequency together.Concerning 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, select to reach the certain thresholding and the moment of time, with the Serving cell business of HS-DSCH from original service cell updating to other sub-districts.
As shown in Figure 1, Node B receives RNC (Radio Network Controller, radio network controller) behind the user data of Fa Songing, user data cache in MAC-hs, and is sent to UE by HS-DSCH with user data, when UE need be updated to Target cell because of the signal quality variation of current service cell, UE stops to receive data from former Node B, and the user data that beginning receiving target Node B sends is corresponding, the MAC-hs of former Node B resets, and buffer memory is emptied.
Fig. 2 shows the new technological process of the HS-DSCH Serving cell of UE between different N ode B:
1, RNC sends Radio Link Reconfiguration Prepare radio link reconfiguration to former Node B and prepares message, prepares the resource that deletion HS-DSCH takies in former Node B.
2, former Node B returns the Radio Link Reconfiguration Ready radio link reconfiguration message that finishes to RNC.
3, RNC sends Radio Link Reconfiguration Prepare radio link reconfiguration to target Node B and prepares message, increases the HS-DSCH resource in target Node B.
4, target Node B returns the Radio Link Reconfiguration Ready radio link reconfiguration message that finishes to RNC.
5, RNC sends Radio Link Reconfiguration Commit radio link reconfiguration initiation message to former Node B.Comprise activationary time in the message.At activationary time constantly, former Node B stops to send data, and the MAC-hs of Node B resets.
6, RNC sends Radio Link Reconfiguration Commit radio link reconfiguration initiation message to target Node B, comprises activationary time in the message.At activationary time constantly, target Node B begins to send data.
7, RNC sends Physical Channel Reconfiguration physical channel reconfiguration message to UE.Message comprises activationary time and the MAC-hs indication that resets.At activationary time constantly, the MAC-hs of UE resets, and UE stops to receive data from former Node B, begins to receive data from target Node B.
8, UE sends Physical Channel Reconfiguration Complete physical channel and reshuffles the message that finishes to RNC.
As mentioned above, in HS-DSCH service cell updating process, the MAC-hs of former Node B need reset, and the buffer memory of MAC-hs is emptied, thereby cause loss of user data.
For the business that high level adopts non-affirmation mode to transmit, the loss of data of Node B means that UE 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.And adopt the affirmation mode to transmit the business of data for high level, the loss of data of Node B means that the RNC needs send to data in the MAC-hs entity of newly-established Node B by the interface between the Node B 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 could confirm after receiving the status report of UE which data is not correctly sent to UE by former Node B, indication according to status report resends those data of being lost to new Node B then, thereby brings extra time delay.
Summary of the invention
The objective of the invention is to reduce the user data loss that in HS-DSCH service cell updating process, resets and cause because of MAC-hs.
In order to realize goal of the invention, the invention provides a kind of high-speed downward sharing channel service residence method for updating, when receiving the radio link reconfiguration preparation message that radio network controller sends, the former base station of carrying high-speed downward sharing channel service residence sends the capacity configuration control frame to radio network controller, the amount of user data that the control radio network controller sends to former base station.
Described method comprises the steps:
A. radio network controller sends radio link reconfiguration to former base station and prepares message;
B. former base station sends the capacity configuration control frame to radio network controller, the amount of user data that the control radio network controller sends to former base station;
C. the radio link reconfiguration message that finishes is returned to radio network controller in former base station.
Described method further comprises the steps:
D. radio network controller sends radio link reconfiguration to target BS and prepares message;
E. target BS returns the radio link reconfiguration message that finishes to radio network controller;
F. radio network controller sends the radio link reconfiguration initiation message to former base station, comprises activationary time in the message; At activationary time constantly, former base station stops to send data to subscriber equipment, and the MAC-hs of former base station resets.
G. radio network controller sends the radio link reconfiguration initiation message to target BS, and at activationary time constantly, target BS sends data to subscriber equipment;
H. radio network controller sends the physical channel reconfiguration message to subscriber equipment, comprise activationary time and the MAC-hs indication that resets in the message, at activationary time constantly, the MAC-hs of subscriber equipment resets, stop from former base station receiving subscriber data the user data that beginning receiving target base station sends.
The HS-DSCHCredits parameter of described capacity configuration control frame is set to 0, and the indication radio network controller stops to send user data to described former base station.
In order to realize goal of the invention better, the present invention further provides a kind of base station, be used to carry high-speed downward sharing channel service residence, receive the user data that radio network controller sends to subscriber equipment, described base station is when receiving the radio link reconfiguration preparation message that radio network controller sends, send the capacity configuration control frame to radio network controller, the amount of user data that the control radio network controller sends.
The HS-DSCH Credits parameter of described capacity configuration control frame is set to 0, and the indication radio network controller stops to send user data to described base station.
In the service cell updating flow process of the present invention by UE HS-DSCH between different N ode B, add flow control process, RNC is to the data packet transmission between the MAC-hs of Node B in control, be reduced in the activationary time data volume in the buffer memory of the MAC-hs of former Node B constantly, cause losing of data in the buffer memory thereby reduce because of MAC-hs resets.
Description of drawings
Fig. 1 is subscriber equipment carries out the HS-DSCH service cell updating between different N ode B a network structure;
Fig. 2 is the flow chart that UE carries out the HS-DSCH service cell updating in the prior art between different Node B;
Fig. 3 is the capacity configuration flow chart between Node B and the RNC;
Fig. 4 is a Capacity Allocation message format structure chart;
Fig. 5 is the flow chart that UE carries out the HS-DSCH service cell updating among the present invention between different Node B.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the present invention, when between UE is belonging to the sub-district of different N ode B, carrying out the service cell updating process of HS-DSCH, by the control frame of former Node B to the control of RNC transmitted traffic, the amount of user data that control RNC sends to former Node B, thus reduce because the loss of data that the MAC-hs of former Node B resets and causes.
In user data transmission, Node B and RNC (Radio Network Controller, radio network controller) realize the flow control of transfer of data by Capacity Request capacity request messages and CapacityAllocation capacity configuration message.As shown in Figure 3, Node B uses Capacity Allocation message to notify RNC can send how many data.
Capacity Allocation message structure as shown in Figure 4, wherein:
1, CmCH-PI, the indication of transport layer priority, the priority of designation data frame, 0 is lowermost level, 15 is highest;
2, Maximum MAC-d PDU length, maximum MAC-d PDU data packet length, when being illustrated in Radio Link and setting up, the maximum of the MAC-d PDU packet size that the base station application part process is provided with;
3, HS-DSCH Credits, MAC-d PDU number in the transmission unit, in the time interval, RNC transmits the number of MAC-d PDU at an effective HS-DSCH in indication, and 0 expression stops to send immediately;
4, HS-DSCH Interval, HS-DSCH data transmission period indicate in this official hour interval at interval, and the MAC-d PDU number that needs transmission HS-DSCH Credits definition is to Node B, and 0 represents not have MAC-d PDU transmission;
5, HS-DSCH Repetition Period, the HS-DSCH data repetition period, indication sends effective number of HS-DSCH Interval continuously.
Fig. 5 shows the HS-DSCH service cell updating flow process of UE between different N ode B among the present invention, and details are as follows:
1, RNC sends Radio Link Reconfiguration Prepare radio link reconfiguration to former Node B and prepares message, prepares the resource that deletion HS-DSCH takies in former Node B.
2, after former Node B receives that Radio Link Reconfiguration Prepare radio link reconfiguration is prepared message, send capacity configuration (Capacity Allocation) control frame to RNC, the amount of user data that control RNC sends to former NodeB.As a preferred embodiment of the present invention, the Parameter H S-DSCHCredits of control frame is arranged to 0, and indication RNC stops to send data.
3, former Node B returns the Radio Link Reconfiguration Ready radio link reconfiguration message that finishes to RNC.
4, RNC sends Radio Link Reconfiguration Prepare radio link reconfiguration to target Node B and prepares message, to increase the HS-DSCH resource in target Node B.
5, target Node B returns the Radio Link Reconfiguration Ready radio link reconfiguration message that finishes to RNC.
6, RNC sends Radio Link Reconfiguration Commit radio link reconfiguration initiation message to former Node B.Comprise activationary time in the message.At activationary time constantly, former Node B stops to send data, and the MAC-hs of Node B resets.
7, RNC sends Radio Link Reconfiguration Commit radio link reconfiguration initiation message to target Node B, comprises activationary time in the message.At activationary time constantly, target Node B begins to send data.
8, RNC sends Physical Channel Reconfiguration physical channel reconfiguration message to UE.Message comprises activationary time and the MAC-hs indication that resets.At activationary time constantly, the MAC-hs of UE resets.UE stops to receive data from former Node B, begins to receive data from target Node B.
9, UE sends Physical Channel Reconfiguration Complete physical channel and reshuffles the message that finishes to RNC.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. high-speed downward sharing channel service residence method for updating, it is characterized in that, when receiving the radio link reconfiguration preparation message that radio network controller sends, the former base station of carrying high-speed downward sharing channel service residence sends the capacity configuration control frame to radio network controller, the amount of user data that the control radio network controller sends to former base station.
2. the method for claim 1 is characterized in that, described method further comprises the steps:
A. radio network controller sends radio link reconfiguration to former base station and prepares message;
B. former base station sends the capacity configuration control frame to radio network controller, the amount of user data that the control radio network controller sends to former base station;
C. the radio link reconfiguration message that finishes is returned to radio network controller in former base station.
3. method as claimed in claim 2 is characterized in that described method further comprises the steps:
D. radio network controller sends radio link reconfiguration to target BS and prepares message;
E. target BS returns the radio link reconfiguration message that finishes to radio network controller;
F. radio network controller sends the radio link reconfiguration initiation message to former base station, comprises activationary time in the message; At activationary time constantly, former base station stops to send data to subscriber equipment, and the MAC-hs of former base station resets;
G. radio network controller sends the radio link reconfiguration initiation message to target BS, and at activationary time constantly, target BS sends data to subscriber equipment;
H. radio network controller sends the physical channel reconfiguration message to subscriber equipment, comprise activationary time and the MAC-hs indication that resets in the message, at activationary time constantly, the MAC-hs of subscriber equipment resets, stop from former base station receiving subscriber data the user data that beginning receiving target base station sends.
4. as claim 1,2 or 3 described methods, it is characterized in that the HS-DSCH Credits parameter of described capacity configuration control frame is set to 0, the indication radio network controller stops to send user data to described former base station.
5. base station, be used to carry high-speed downward sharing channel service residence, receive the user data that radio network controller sends to subscriber equipment, it is characterized in that, described base station is when receiving the radio link reconfiguration preparation message that radio network controller sends, send the capacity configuration control frame to radio network controller, the amount of user data that the control radio network controller sends.
6. base station as claimed in claim 5 is characterized in that, the HS-DSCHCredits parameter of described capacity configuration control frame is set to 0, and the indication radio network controller stops to send user data to described base station.
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| CNB2005100370086A CN100417286C (en) | 2005-09-04 | 2005-09-04 | Updating method and device for high speed down shared channel service cell |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101420731B (en) * | 2007-10-24 | 2010-12-08 | 华为技术有限公司 | Processing method, system for adding process for wireless link, and drift RNC |
| CN101222356B (en) * | 2007-12-27 | 2010-07-07 | 华为技术有限公司 | User data updating method and system |
| CN101547469B (en) * | 2008-03-24 | 2011-10-05 | 华为技术有限公司 | Method, system and device for transmitting data |
| CN101730061B (en) * | 2008-10-31 | 2012-06-27 | 大唐移动通信设备有限公司 | Method, device and system for synchronous processing of service establishment and cell update |
| WO2010124460A1 (en) * | 2009-04-29 | 2010-11-04 | Rong Nan Chiou | Time-division multiple access medium access control method for traffic control |
| WO2014047929A1 (en) | 2012-09-29 | 2014-04-03 | 华为技术有限公司 | Method and related device for resetting high-speed medium access control entity |
| WO2014094249A1 (en) * | 2012-12-19 | 2014-06-26 | 华为技术有限公司 | Downlink physical channel configuration method and device |
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| WO2000032001A2 (en) * | 1998-11-23 | 2000-06-02 | Nokia Mobile Phones Ltd. | Method and arrangement for avoiding loss of error-critical non-real time data during certain handovers |
| EP1124398A1 (en) * | 2000-02-09 | 2001-08-16 | Lucent Technologies Inc. | Arrangement for data exchange in a wireless communication system |
| CN2696250Y (en) * | 2002-04-05 | 2005-04-27 | 交互数字技术公司 | User set for HS-DSCH common channel area changing |
| 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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- 2005-09-04 CN CNB2005100370086A patent/CN100417286C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000032001A2 (en) * | 1998-11-23 | 2000-06-02 | Nokia Mobile Phones Ltd. | Method and arrangement for avoiding loss of error-critical non-real time data during certain handovers |
| EP1124398A1 (en) * | 2000-02-09 | 2001-08-16 | Lucent Technologies Inc. | Arrangement for data exchange in a wireless communication system |
| CN2696250Y (en) * | 2002-04-05 | 2005-04-27 | 交互数字技术公司 | User set for HS-DSCH common channel area changing |
| 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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Effective date of registration: 20211223 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: xFusion Digital Technologies Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |