WO2008019549A1 - Procédé et système de mise en oeuvre d'une commutation e-dch - Google Patents

Procédé et système de mise en oeuvre d'une commutation e-dch Download PDF

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Publication number
WO2008019549A1
WO2008019549A1 PCT/CN2007/000858 CN2007000858W WO2008019549A1 WO 2008019549 A1 WO2008019549 A1 WO 2008019549A1 CN 2007000858 W CN2007000858 W CN 2007000858W WO 2008019549 A1 WO2008019549 A1 WO 2008019549A1
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WO
WIPO (PCT)
Prior art keywords
dch
channel
switching
measurement report
traffic
Prior art date
Application number
PCT/CN2007/000858
Other languages
English (en)
Chinese (zh)
Inventor
Yanchun Xie
Kaitao Huang
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008019549A1 publication Critical patent/WO2008019549A1/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
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to a High Speed Uplink Packet Access (HSUPA) technology, and more particularly to a method and system for implementing Enhanced Uplink Dedicated Channel (E-DCH) handover.
  • HSUPA High Speed Uplink Packet Access
  • E-DCH Enhanced Uplink Dedicated Channel
  • WCDMA Wideband Code Division Multiple Access
  • Release 99 Release 99
  • Release 4 the uplink and downlink capacity of the bearer service is limited, theoretically not exceeding 2 Mbps, the actual throughput rate of a single user.
  • the lower the maximum allowed transfer rate is 384Kbps.
  • the actual transmission rate often does not reach such a high rate, 'this is a significant deficiency for services that provide high-speed data services.
  • the main purpose of the third generation mobile communication technology is to provide a relatively large transmission bandwidth and ensure that users transmit high-speed multimedia services.
  • HSDPA High Speed Downlink Packet Access
  • the 3GPP third generation partner program
  • HSUPA adopts the uplink fast scheduling, hybrid automatic request retransmission (HARQ), and 2ms short frame of the base station NodeB, and also adds an uplink dedicated channel, E-DCH, to support HSUPA transmission.
  • E-DCH uplink dedicated channel
  • the user's uplink throughput rate has been greatly improved.
  • the maximum peak rate is 5.76 Mbps
  • the system uplink capacity has also been greatly improved.
  • E-DCH transmission is adopted.
  • the DCH is a dedicated channel
  • the FACH is a forward access channel
  • the PCH is a paging channel.
  • the low-speed channel mentioned herein is a channel relative to the E-DCH.
  • the channels before and after the handover should be measured separately, and the actual traffic volume currently carried on each channel is learned, and whether to switch is determined according to the actual traffic volume, only when The channel meets the 4B event standard, that is, when the traffic carried on the channel is lower than a certain absolute threshold, the channel switching is performed.
  • the user terminal for the uplink channel, the user terminal (UE) can only measure the uplink shared channel (USCH) in the random access channel (RACH), DCH or time division default (TDD) mode, that is, When the UE uses the E-DCH, the E-DCH is not specified in the protocol. Therefore, the UE cannot report the actual traffic carried on the E-DCH. Thus, the current uplink uses the E-DCH, and when the uplink service is used. When the amount is reduced:
  • the radio network controller wants to implement channel switching according to the traffic 4B events of all uplink transmission channels and downlink transmission channels of the UE, but the E-DCH has no traffic report, the E-DCH handover cannot be satisfied. Condition, and the E-DCH cannot be switched to the low-speed channel according to the traffic measurement.
  • the E-DCH since the E-DCH is not measured, it causes the channel switching of the E-DCH to the low-speed channel, or it cannot be realized at all, and the wireless power is wasted. And code resources, affecting the flexibility of channel switching; or even if implemented, it will be greatly reduced
  • the main object of the present invention is to provide a method for implementing enhanced uplink dedicated channel switching, which can successfully implement E-DCH switching.
  • Another object of the present invention is to provide a system for implementing enhanced uplink dedicated channel switching, which can successfully implement E-DCH switching.
  • a method for enhancing an E-DCH handover of an uplink dedicated channel comprising the steps of:
  • the network side performs the E-DCH traffic measurement report reported by the user terminal, and performs E-DCH to low-speed channel switching when the preset switching condition is met.
  • a system for implementing enhanced E-DCH handover of an uplink dedicated channel comprising a user terminal UE and a radio network controller RNC, wherein
  • a measurement module and a reporting module are disposed in the UE, the measurement module is configured to measure the E-DCH traffic, and the E-DCH traffic measurement report is sent to the reporting module; the reporting module is configured to receive the received E-DCH traffic. The measurement report is reported to the RNC;
  • the first decision module is disposed in the NC, and receives an E-DCH traffic measurement report from the UE, and performs E-DCH to low-speed channel switching when the preset handover condition is met.
  • the E-DCH traffic measurement information that is, the uplink transport channel in the existing traffic measurement object information, the traffic measurement event result, and the traffic measurement report standard configuration, respectively.
  • the network side realizes the channel switching from the E-DCH to the low-speed channel by measuring the traffic on the E-DCH, and the P-segment reduces the consumption of the wireless power and the code resource by using the E-DCH, and enhances the channel switching. flexibility.
  • a technical solution in the foregoing technical solution sets a period of time, and counts the number of times of the E-DCH or E-DCH and the 4B event measurement report reported by the channel related to the channel switching in the time period, and collects statistics on each channel. When the number of times reaches the preset channel switching threshold, the E-DCH to low-speed channel switching is performed. This processing solves the problem of ping-pong switching well and improves the success rate of channel switching, thereby further strengthening. Channel switching stability. BRIEF DESCRIPTION OF THE DRAWINGS
  • Figure 1 is a flow chart of the method of the present invention
  • FIG. 2 is a flow chart of an embodiment of the E-DCH handover to FACH of the present invention
  • FIG. 3 is a flow chart of an embodiment of the E-DCH switching to DCH of the present invention.
  • FIG. 4 is a schematic view showing the structure of the system of the present invention. Mode for carrying out the invention
  • Figure 1 is a flow chart of the method of the present invention, comprising the following steps:
  • Step 100 Set E-DCH traffic measurement information.
  • the uplink traffic in the existing traffic measurement object information, the traffic measurement event result, and the traffic volume measurement standard configuration respectively
  • an E-DCH channel type is added; and an E-DCH MAC-d flow identity cell for distinguishing each PS service carried on the E-DCH is added.
  • the UE can measure the traffic on the logical channel corresponding to the E-DCH, that is, when the traffic carried on the E-DCH channel is lower than a certain preset absolute threshold, the 4B measurement report is reported.
  • the method for measuring the traffic on the logical channel corresponding to the E-DCH is the same as the measurement method for the RACH, the DCH, or the USCH, but only for different channels, and belongs to the prior art. Said.
  • Step 101 The network side performs an E-DCH traffic measurement report reported by the user terminal, and performs E-DCH to low-speed channel switching when the preset switching condition is met.
  • the method of the present invention is based on the measurement of the E-DCH, when the traffic measurement report of the E-DCH satisfies the preset switching condition, that is, when the traffic measurement report is a 4B event measurement report, Switching from E-DCH to low speed channels such as DCH.
  • the method further includes: determining, by the network side, the channel traffic measurement report related to the handover reported by the user terminal, whether the pre-satisfaction is satisfied at the same time.
  • the switching element is set, and if it is satisfied, the switching of the E-DCH to the low speed channel is performed; otherwise, the flow of the present invention is ended.
  • the relevant channel refers to all other channels currently used by the UE.
  • the method of the present invention implements channel switching from E-DCH to low-speed channel by measuring traffic on the E-DCH, and reduces the use of E-DCH for wireless power and code resources.
  • the consumption increases the flexibility of channel switching.
  • a time period is set in advance, and it is counted whether the number of times of the 4B event measurement report reported by the E-DCH or the E-DCH and the related channel in the time period reaches a preset channel switching threshold. -DCH to low speed channel switching; otherwise, channel switching is not performed. It can be easily seen that the processing of the present invention solves the problem of ping-pong switching well, improves the success rate of channel switching, and further enhances the stability of channel switching. The implementation of the method of the present invention is described in detail below in connection with two embodiments.
  • E-DCH handover to the FACH includes the following steps:
  • Step 200 The user terminal reports the 4B event measurement report of the E-DCH to the network side.
  • Step 201 The network side determines whether to allow switching from the E-DCH to the FACH according to the preset switching information. If yes, the process proceeds to step 202. Otherwise, the process ends.
  • the network side is provided with switching information indicating whether to allow the E-DCH to switch to the low-speed channel, and the switching information is displayed as allowing switching from the E-DCH to the FACH, and the process proceeds to step 202.
  • Step 202 Determine whether the other channels currently used by the user terminal report the 4B event measurement report, and if yes, go to step 203; otherwise, end the process.
  • Step 203 Start the 4B event measurement report statistics timer, and count the number of times of the 4B event measurement report on each channel until the timer expires. ⁇
  • the 4B event measurement report statistic timer is used to set a period of time, and the timing duration of the timer may be determined according to service related information, such as the type of service, etc. Generally, for real-time services, the timer may be set. The timing of the timer is shorter, and for non-real-time services, the timer can be set to have a longer timing. The timing duration depends on the simulation results of the actual situation. The timing of the 4B event measurement report statistics timer is not limited here.
  • Step 204 Determine whether the number of times of the 4B event measurement report reported by each channel exceeds a preset channel switching threshold. If yes, proceed to step 205; otherwise, end the process.
  • the value of the preset channel switching threshold is related to the timing of the 415 event measurement report statistics timer. The specific value depends on the simulation result of the actual situation. The value of the channel switching threshold is not limited here.
  • Step 205 Perform E-DCH to: FACH switching.
  • This step is implemented through the existing radio bearer (RB) reconfiguration process.
  • RB radio bearer
  • E-DCH switching to the DCH includes the following steps:
  • Step 300 The user terminal reports the event measurement report of the E-DCH to the network side.
  • Step 301 The network side determines whether to allow switching from the E-DCH to the DCH according to the preset switching information. If yes, the process proceeds to step 302. Otherwise, the process ends.
  • the handover information indicating whether to allow the E-DCH to switch to the low-speed channel is set on the network side, and the handover information is displayed as permitting the handover from the E-DCH to the DCH, and the process proceeds to step 302. ⁇
  • Step 302 Start the 4 event measurement ⁇ : report the statistics timer, and count the number of 4 event measurement reports reported by the E-DCH until the timer expires.
  • the DCH event detection report statistics timer is set.
  • Step 303 Determine whether the number of times of the event measurement report reported by the E-DCH exceeds a preset channel switching threshold. If yes, proceed to step 305; otherwise, end the process.
  • Step 305 Perform handover of the E-DCH to the DCH.
  • This step is completed through the existing RB reconfiguration process.
  • Details refer to related protocols, and details are not mentioned here.
  • FIG. 4 is a schematic structural diagram of the system of the present invention. As shown in FIG. 4, the system includes: a user terminal UE and a radio network controller RC, where
  • a measurement module and a reporting module are disposed in the UE, the measurement module is configured to measure the E-DCH traffic, and the E-DCH traffic measurement report is sent to the reporting module; the reporting module is configured to receive the received E-DCH traffic. The measurement report is reported to the RC;
  • a first decision module is configured in the RNC, configured to receive the reported E-DCH traffic measurement report from the UE, and perform E-DCH to low-speed channel switching when the preset handover condition is met.
  • R C Further configured in the R C is a second decision module
  • the low-speed channel is a dedicated channel DCH
  • the E-DCH traffic measurement report is a 4B event measurement report
  • the second decision module is configured to receive the switching information from the E-DCH to the DCH, and the second determining module is configured to receive the reported 4B event measurement report from the UE, where the time period is set in advance. And the number of times the 4B event measurement report reported by the E-DCH reaches a preset channel switching threshold, and the first decision module is notified to perform switching of the E-DCH to the low-speed channel.
  • the second decision The module is configured to receive a reported 4B event measurement report from the UE.
  • the second decision module is pre-configured to allow switching from E-DCH to FACH/PCH handover
  • the information when the number of times of the 4B event measurement reported by the UE reaches the preset channel switching threshold, is notified to the first decision module to perform the E-DCH to low-speed channel switching. .

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

Abstract

L'invention concerne un procédé de mise en oeuvre d'une commutation E-DCH consistant à définir des informations (100) de mesure de la quantité de service E-DCH. Selon ledit procédé, le côté réseau dépend du rapport de mesure de la quantité de service E-DCH, et lorsqu'une condition de commutation prédéfinie est remplie, une commutation E-DCH sur le canal faible débit (101) est réalisée. L'invention concerne également un système de mise en oeuvre d'une commutation E-DCH selon lequel le côté réseau dépend de la mesure de la quantité de service E-DCH. Ledit système réalise une commutation du canal E-DCH sur le canal faible débit, réduit la consommation de puissance radio et de ressources de code au moyen de E-DCH, et améliore la flexibilité de la commutation de canaux. L'invention permet par ailleurs de résoudre le problème de commutation alternée, d'améliorer l'efficacité de la commutation de canaux, et d'améliorer ainsi la stabilité de la commutation de canaux.
PCT/CN2007/000858 2006-08-10 2007-03-16 Procédé et système de mise en oeuvre d'une commutation e-dch WO2008019549A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2006101093475A CN101123796B (zh) 2006-08-10 2006-08-10 一种实现增强上行专用信道切换的方法
CN200610109347.5 2006-08-10

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WO2008019549A1 true WO2008019549A1 (fr) 2008-02-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101938843A (zh) * 2009-07-01 2011-01-05 大唐移动通信设备有限公司 一种业务承载方式的选择方法和装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102457927B (zh) * 2010-10-27 2014-07-02 展讯通信（上海）有限公司 一种防止乒乓重选的方法
CN103298116B (zh) * 2012-02-28 2016-08-17 鼎桥通信技术有限公司 一种用户设备的状态转换方法和装置
CN104301915B (zh) * 2014-10-27 2017-09-19 大唐移动通信设备有限公司 资源配置调整方法及无线网络控制器

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CN1276949A (zh) * 1997-02-20 2000-12-13 艾利森电话股份有限公司 支持用于蜂窝分组控制信道的多个调制级别
CN1761356A (zh) * 2004-10-11 2006-04-19 中兴通讯股份有限公司 一种码分多址系统中公共信道向专用信道的类型转换方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1276949A (zh) * 1997-02-20 2000-12-13 艾利森电话股份有限公司 支持用于蜂窝分组控制信道的多个调制级别
CN1761356A (zh) * 2004-10-11 2006-04-19 中兴通讯股份有限公司 一种码分多址系统中公共信道向专用信道的类型转换方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101938843A (zh) * 2009-07-01 2011-01-05 大唐移动通信设备有限公司 一种业务承载方式的选择方法和装置

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CN101123796B (zh) 2011-05-11
CN101123796A (zh) 2008-02-13

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