WO2007033528A1 - Procede pour changer de canal dans un systeme d’acces de paquets haut debit - Google Patents

Procede pour changer de canal dans un systeme d’acces de paquets haut debit Download PDF

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Publication number
WO2007033528A1
WO2007033528A1 PCT/CN2005/001559 CN2005001559W WO2007033528A1 WO 2007033528 A1 WO2007033528 A1 WO 2007033528A1 CN 2005001559 W CN2005001559 W CN 2005001559W WO 2007033528 A1 WO2007033528 A1 WO 2007033528A1
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WO
WIPO (PCT)
Prior art keywords
channel
quality
service
speed packet
high speed
Prior art date
Application number
PCT/CN2005/001559
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English (en)
Chinese (zh)
Inventor
Yazhu Ke
Jianwu Dou
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to PCT/CN2005/001559 priority Critical patent/WO2007033528A1/fr
Priority to CN2005800495893A priority patent/CN101167286B/zh
Publication of WO2007033528A1 publication Critical patent/WO2007033528A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment

Definitions

  • the present invention relates to a method for transporting a channel of a wireless cellular communication system, and more particularly to a method for migrating between a HS-DSCH and a DCH of a WCDMA mobile communication system supporting downlink high-speed packet service access.
  • the W99 (Wideband Code-Division Multiple-Access) mobile communication system's R99 standard protocol provides users with a maximum rate of 384 kbps and a hotspot area with a 2 Mbps rate. From the performance of DCH (dedicated channel: dedicated channel) and DSCH (downlink shared channel) that can be used to transmit packet data, R99 standard protocol provides for users in general areas.
  • DCH dedicated channel: dedicated channel
  • DSCH downlink shared channel
  • - DSCH High Speed Downlink Shared Channel
  • riARQ Hybrid Automatic Repeat Request
  • AMC Adaptive Modulation Coding
  • the user's data rate can be adaptively changed according to the channel quality in a wide range, and the peak rate can reach 10.8 Mbps to 30 Mbps.
  • the ultimate goal of introducing a high-speed packet sharing channel is to increase the capacity of the system and reduce the transmission delay to improve the user. Requirements for Qos (Quality of Service).
  • HSDPA High Speed Downlink Packet Access
  • the European patent "EP1549098 Effective dynamic management scheme of hs-dsch channel codes” is a strategy for dynamically adjusting the channelization code of the HS-PDSCH or migrating the user to the DCH using the requirements of the HS-DSCH user.
  • the strategy of channel migration between HS-DSCH and DCH based on channel quality has not been addressed in the technology. Summary of the invention
  • the channel selection and channel migration method between the quality HS-DSCH and the DCH can fully utilize the role of the HS-DSCH, thereby fully embodying the large capacity of the HSDPA system.
  • the technical solution of the present invention includes:
  • a method for implementing channel migration in a high speed packet access system comprising the steps of:
  • the radio network controller determines the channel quality of the service according to the intra-frequency measurement of the user equipment, according to the channel quality of the service. Select the appropriate channel type. If the currently used channel type is inconsistent with the selected channel type, perform channel migration.
  • the implementation method where the method further includes:
  • the radio network controller When the service is initially accessed, according to the channel quality of the current user, and the service allows the use of the high-speed packet sharing channel, the radio network controller pre-determines the channel in which the service is located according to the same-frequency measurement of the user equipment. Quality, if the channel quality is poor, is admitted on the dedicated channel; otherwise, a high speed packet shared channel or dedicated channel may be employed.
  • the implementation method further includes the following steps:
  • the implementation method where the method specifically includes:
  • the radio network controller's decision on the channel quality status includes: if the channel quality status of the user equipment is in a poor quality state, and the service demand of the high speed packet sharing channel is much larger than The data traffic allocated by the idle media access control protocol performs the migration of the high speed packet sharing channel to the dedicated channel; otherwise, the high speed packet sharing signal is continued.
  • the implementation method wherein the requirement of the high-speed packet shared channel service is far greater than a score allocated by the high-speed media access control protocol for monitoring the user plane traffic request and the high-speed media access control protocol for the data traffic allocated by the high-speed media access control protocol Judge.
  • the implementation method where the method specifically includes:
  • the radio network controller's decision on the channel quality status includes: If the user traffic meets the conditions for migrating to the high speed packet sharing channel, and the user channel quality is in a good quality state, the migration of the dedicated channel to the high speed packet sharing channel is performed; otherwise, the dedicated channel continues to be used.
  • the implementation method wherein whether the user service traffic meets the condition of migrating to the high-speed packet sharing channel is determined by monitoring user plane traffic measurement, that is, when the traffic volume reaches a predetermined threshold, the migration to the high-speed packet is satisfied.
  • the condition of the shared channel is determined by monitoring user plane traffic measurement, that is, when the traffic volume reaches a predetermined threshold, the migration to the high-speed packet is satisfied.
  • the method for implementing channel migration in an idle packet access system is to implement radio channel quality, HS-DSCH traffic, and MAC-hs (Medium Access Control-hs: High Speed Media Access Control Protocol) of the user equipment.
  • the available bandwidth determines whether the service is suitable for transmitting data on the HS-DSCH. It can fully reflect the characteristics of the HS-DSCH large capacity and maximize the utilization of the HS-DSCH, thereby greatly increasing the capacity of the HSDPA system.
  • FIG. 2 is a diagram showing the relationship between the intra-frequency measurement event and the channel quality state of the present invention
  • 3 is a flow chart of channel type selection in the initial service access process of the present invention.
  • FIG. 4 is a flowchart of an implementation of migrating to a DCH in a service hold process of an HS-DSCH according to the present invention
  • FIG. 5 is a flowchart of an implementation of a DCH service maintenance process of the present invention being migrated to an HS-DSCH;
  • 1F event the quality of the pilot channel is below a predetermined threshold
  • lE_Flag The quality of the channel monitored by the UE (User Equipment) is in good quality.
  • lF_Flag The quality of the channel monitored by the UE is in poor quality.
  • the present invention is a method for implementing channel selection and channel migration between HS-DSCH and DCH based on channel quality.
  • the basic principles are as follows: (1) It is preliminarily determined by the same frequency measurement of the pilot channel whether the user is suitable for the HS-DSCH. Run data; (2) Through the user data traffic demand and the bandwidth that MAC-hs can provide, RNC (Radio Network Control) further determines whether the user is suitable to run data on the HS-DSCH.
  • RNC Radio Network Control
  • the RNC when the service is initially accessed, if the first service is used and the service is allowed to use the HS-DSCH, the RNC needs to perform the IF event determination on the radio channel quality, and if the 1F event is satisfied, the channel quality is set. If the status is "IF-flag status", you can only choose to accept in the DCH; if the 1F event is not met, select the connection. It is shown in HS-DSCH, as shown in Figure 1 and Figure 3.
  • the service When the service is accessed during the hold process, it is judged whether the user is suitable to run the data on the HS-DSCH through the same-frequency measurement of the pilot channel, and then the RNC further judges through the user data traffic demand and the bandwidth that the MAC-hs can provide. Whether the user is suitable to run data on the HS-DSCH. If the service allows the use of the HS-DSCH, it is determined whether the UE is in the "lF_Flag state" at this time. If it is, the service can only accept or migrate to the DCH; otherwise, it can be admitted or migrated to the HS-DSCH, as shown in Figure 1. Figure 4 and Figure 5.
  • the same frequency measurement corresponding to the function is started: as shown in FIG. 2, the event type 1E event and the 1F event are configured; if the UE reports the 1F event, the channel quality status is set to "IF-Flag". Status", if the UE reports a 1E event, set the channel quality status to "IE-Flag Status".
  • the channel quality status of the UE is "lF_Flag state"
  • the user's HS-DSCH service demand is far greater than the MAC-hs allocation thereof. If the data traffic is far greater than, the channel quality can not meet the service requirements, and it needs to be migrated to the DCH for data transmission; otherwise, the HS-DSCH is used for data transmission, as shown in Figure 4.
  • the service when the service is in the process of maintaining and the DCH channel is being used, if the user traffic meets the condition of migrating to the HS-DSCH channel and the channel quality of the current user is in the "IE-flag state", the user's Both the demand and the channel quality can allow the use of the HS-DSCH channel for data transmission.
  • the DCH to HS-DSCH channel migration is performed; otherwise, the DCH is used for data transmission, as shown in FIG.
  • the user traffic meets the conditions for migration to the HS-DSCH: it can be judged by monitoring the user plane traffic measurement, and the migration condition is satisfied when the traffic buffer reaches the predetermined threshold.
  • FIG. 1 is a block diagram of a technical solution of the present invention.
  • the service feature of the technical solution of the present invention is suitable for using the HS-DSCH to transmit data, where the process and the service for selecting and accepting the channel type during initial service access are maintained.
  • the process of selecting a migration for the channel type. 2 FIG. 3, FIG. 4, and FIG. 5 respectively show specific implementation workflows for the steps (101) and (102), (106), (107), and (108) in FIG.
  • the technical solution determines the radio channel quality according to the UE's intra-frequency measurement (101).
  • the channel quality is determined in advance, and then the channel type is selected (103).
  • HS-DSCH -> DCH channel migration (107) policy in call hold process is related to radio channel quality (102), HS-DSCH traffic demand (103), and MAC-hs available bandwidth (104); Keep DCH in progress -> HS-DSCH
  • the channel migration (108) strategy is related to wireless channel quality (102) and traffic measurement (105).
  • Figure 2 is a graph of the same frequency measurement event and channel quality status.
  • the RNC sets the charging channel quality status of the UE to "lF_Flag state" (202).
  • the RNC sets the radio channel quality status of the UE to "IE-Flag state" (204).
  • Figure 3 is a flow chart for selecting a channel type during initial service access:
  • the step (301) first determines whether the service is the first initial service access. If it is not the first initial service, and the service characteristic is suitable for the HS-DSCH to transmit data, the step (303) is directly performed.
  • step (302) If it is the first initial service, and the service characteristic is suitable for the HS-DSCH to transmit data, perform a step (302), where the RNC determines a cell decision according to an RRC (Radio Resource Control) connection request message.
  • RRC Radio Resource Control
  • the step (303) is performed to determine whether the current channel quality of the UE is in the "lF_Flag state". If it is in the "lF_Flag state", the radio channel quality is relatively poor, and the step (304) is directly accepted in the DCH.
  • the step (305) is performed to directly accept the HS-DSCH.
  • the migration condition when the migration condition is met, it can be migrated from HS-DSCH to DCH or from DCH to HS-DSCH.
  • Figure 4 is a flow chart of the implementation of the migration to the DCH during the service maintenance process of the HS-DSCH
  • step (401) when the UE triggers a 1F event, performing (402) step to initiate user plane HS-DSCH service traffic and MAC-hs available bandwidth measurement; in step (403), If the UE triggers the 1E event, the step (404) is performed to stop the user plane of the HS-DSCH service traffic and the MAC-hs available bandwidth.
  • step (405) when the user reports the measurement report, And the service characteristic is suitable for the HS-DSCH transmission data, and the step (406) determines whether the requirement of the HS-DSCH service traffic *Factor is greater than a bandwidth that the MAOhs can provide.
  • step (409) is performed, and the data is still transmitted using the HS-DSCH.
  • step (407) is performed to determine whether the current radio channel quality status of the UE is the "IF-flag status".
  • the radio channel quality status is not in the "IF-flag state"
  • the current channel quality is OK.
  • the HS-DSCH channel transmission data is satisfied, and the execution (409) step remains to use the HS-DSCH to transmit data.
  • the step (408) is triggered to perform channel migration of the HS-DSCH->DCH.
  • Figure 5 is a flow chart of the migration of the DCH service to the HS-DSCH
  • the step (502) is executed to start the traffic measurement of the user plane.
  • the step (504) is performed to determine whether the traffic meets the condition for migrating to the HS-DSCH: that is, the traffic buffer reaches a predetermined threshold.
  • the execution (507) step remains to use the DCH to transmit data.
  • the step (505) is performed to determine whether the current radio channel quality status of the UE is in the "IE-Flag state".
  • the step (507) is performed to still use the DCH to transmit data.
  • the step (506) is triggered to perform channel migration of the DCH -> HS DSCH.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé pour changer de canal dans un système d'accès de paquets haut débit. Dans le procédé de maintien du service et lorsque le service peut être transmis par un canal partagé haut débit, le contrôleur de réseau radio (RNC) détermine la qualité du canal sur lequel le service transmet à la même détection de fréquence que le dispositif utilisateur, puis sélectionne un type de canal approprié en fonction de la qualité dudit canal; si le type de canal actuel et le type de canal sélectionné ne sont pas identiques, le changement de canal est réalisé. Le procédé de l'invention est tel que l'adéquation du service à transmettre sur le HS-DSCH est déterminée par la qualité du canal radio, le trafic HS-DSCH et la bande passante fournie par MAC-hs, il peut montrer de manière adéquate la forte capacité du HS-DSCH et utiliser la capacité du HS-DSCH autant que possible. Il améliore ainsi considérablement la capacité du système HSDPA.
PCT/CN2005/001559 2005-09-23 2005-09-23 Procede pour changer de canal dans un systeme d’acces de paquets haut debit WO2007033528A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2005/001559 WO2007033528A1 (fr) 2005-09-23 2005-09-23 Procede pour changer de canal dans un systeme d’acces de paquets haut debit
CN2005800495893A CN101167286B (zh) 2005-09-23 2005-09-23 一种高速分组接入***的信道迁移实现方法

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Application Number Priority Date Filing Date Title
PCT/CN2005/001559 WO2007033528A1 (fr) 2005-09-23 2005-09-23 Procede pour changer de canal dans un systeme d’acces de paquets haut debit

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Cited By (1)

* Cited by examiner, † Cited by third party
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CN114631355A (zh) * 2020-09-28 2022-06-14 北京小米移动软件有限公司 接入控制方法、ac判决规则下发方法及装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101815316B (zh) * 2009-02-20 2012-11-21 鼎桥通信技术有限公司 一种高速分组接入向dch状态转换的方法
JP5594610B2 (ja) * 2010-01-12 2014-09-24 シャープ株式会社 無線通信システム、基地局装置、移動局装置、通信制御方法、及び、通信制御プログラム
CN102281597B (zh) * 2010-06-12 2014-12-24 普天信息技术研究院有限公司 一种基站和中继节点服务的协作与切换方法

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CN1638527A (zh) * 2001-04-03 2005-07-13 三星电子株式会社 在码分多址移动通信***中发送控制数据的方法
CN1653718A (zh) * 2002-05-13 2005-08-10 艾利森电话股份有限公司 对高速共享信道的无线电资源管理
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Publication number Priority date Publication date Assignee Title
CN114631355A (zh) * 2020-09-28 2022-06-14 北京小米移动软件有限公司 接入控制方法、ac判决规则下发方法及装置
CN114631355B (zh) * 2020-09-28 2024-01-30 北京小米移动软件有限公司 接入控制方法、ac判决规则下发方法及装置

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CN101167286A (zh) 2008-04-23
CN101167286B (zh) 2010-12-22

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