WO2015127759A1 - Procédé et dispositif de traitement de congestion de données - Google Patents

Procédé et dispositif de traitement de congestion de données Download PDF

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Publication number
WO2015127759A1
WO2015127759A1 PCT/CN2014/083589 CN2014083589W WO2015127759A1 WO 2015127759 A1 WO2015127759 A1 WO 2015127759A1 CN 2014083589 W CN2014083589 W CN 2014083589W WO 2015127759 A1 WO2015127759 A1 WO 2015127759A1
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WO
WIPO (PCT)
Prior art keywords
data
congestion
data congestion
secondary carrier
network
Prior art date
Application number
PCT/CN2014/083589
Other languages
English (en)
Chinese (zh)
Inventor
李凤军
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2015127759A1 publication Critical patent/WO2015127759A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0284—Traffic management, e.g. flow control or congestion control detecting congestion or overload during communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

Definitions

  • the present invention relates to the field of mobile communication systems, and in particular, a Carrier Aggregation (CA) scenario in a Long Term Evolution Advanced (LTE-A) communication system. Processing method and device for data congestion.
  • a base station can aggregate two or more component carriers (Components for short) to provide services for the UE to support a larger transmission bandwidth.
  • the UE can receive or transmit data on one or more CCs simultaneously according to its capabilities.
  • a UE in LTE-A establishes an RRC connection for the first time, only one serving cell, that is, the primary cell (Primary) is configured.
  • PCell The carrier in the serving cell is called a Primary Component Carrier (PCC) and is responsible for RRC communication with the UE.
  • PCC Primary Component Carrier
  • SCell Secondary Cell
  • SCC Secondary Component Carrier
  • the related protocol describes the secondary carrier activation/deactivation mechanism: including the behavior of the UE in the activation deactivation state and the secondary carrier activation deactivation mode, ie, based on the medium access control MAC (Medium Access Control)
  • the combination of the control unit CE (Control Element) and the deactivation timers does not specifically describe the activation/deactivation of the secondary carrier under any conditions.
  • the activation/deactivation of the secondary carrier cannot be well utilized to solve the congestion problem in time.
  • Embodiments of the present invention provide a method and apparatus for resolving data congestion in a timely manner by activating/deactivating a secondary carrier, so as to at least solve the problem in the related art that does not specifically describe the activation/deactivation of the secondary carrier.
  • the activation/deactivation of the secondary carrier cannot be well utilized to solve the congestion problem in time.
  • the method for reducing the number of releases of a UE by an RRC connection is provided by the present invention, including: when a data congestion meets a predetermined condition, activating or deactivating a corresponding secondary carrier according to the type of the data congestion.
  • the types of data congestion include network data congestion and internal data congestion; data congestion meets predetermined conditions, including network data congestion meeting predetermined conditions, and/or internal data congestion meets predetermined conditions.
  • the network data congestion meets the predetermined condition, including: receiving, for N consecutive times, the UE data is congested by the network, where N is a preset positive integer; and the internal data congestion meets a preset condition, including: detecting a continuous UE M packets are congested, and M is a preset positive integer.
  • the packet that receives network congestion of the UE data is that the received packet includes an ECN identifier, where the ECN identifier indicates that network congestion is occurring in the UE data.
  • the activating or deactivating the corresponding secondary carrier according to the type of the data congestion includes: deactivating when the data congestion type is network data congestion, and detecting that the UE receiving the network data has the secondary carrier activated The secondary carrier in the active state; when the data congestion type is internal data congestion, and there is a secondary carrier supported by the base station and the UE receiving the internal data, the supported secondary carrier is activated.
  • the secondary carrier is deactivated; when the UE that receives the network data has multiple secondary carriers in an activated state, one of the activated carriers is activated.
  • the present invention also provides a processing device for data congestion, comprising: a determining module and a processing module; the determining module is configured to determine whether the data congestion meets a predetermined condition, and when the determining that the predetermined condition is met, notifying the processing module to activate or deactivate the corresponding Secondary carrier.
  • the data congestion includes network data congestion and internal data congestion.
  • the determining module is configured to: determine whether the network data congestion meets a condition, or set to determine whether the data congestion of the base station meets a predetermined condition.
  • the network data congestion meets the predetermined condition, including: receiving, for the N times, the UE data is congested by the UE data, where N is a preset positive integer; the internal data congestion meets a preset condition, and includes: detecting a UE The continuous M packets are congested, and M is a preset positive integer.
  • the processing module deactivates the activated secondary carrier of the UE that receives the network data;
  • the processing module activates the secondary carrier supported by the base station and the UE receiving the internal data.
  • the network congestion information provided by the ECN or the congestion of the internal data of the user plane of the base station is used as a condition for activation and deactivation of the secondary carrier, and the activation of the secondary carrier is used to deactivate the network data, thereby effectively alleviating the network data.
  • Congestion and internal data congestion of the base station, and the utilization of the secondary carrier air interface resources are more reasonable, the performance of the communication system is improved, and the user experience is improved.
  • FIG. 3 is a flow chart of a specific application method for processing network data congestion
  • FIG. 5 is a flowchart of a specific application of a method for processing data congestion in a base station
  • FIG. 6 is a schematic diagram of a processing device for data congestion according to the present invention.
  • DETAILED DESCRIPTION OF THE INVENTION The data congestion processing method of the present invention includes activating or deactivating a corresponding secondary carrier according to the type of data congestion when data congestion meets a predetermined condition. In the specific implementation as shown in Figure 1, the following steps are included:
  • the first case is the processing of network data congestion, that is, when the network data congestion meets a predetermined condition, the secondary carrier that is activated in the UE receiving the network data is activated;
  • the case is the processing of data congestion inside the base station, that is, when the internal data congestion satisfies a predetermined condition, the base station and the secondary carrier supported by the UE are activated.
  • 2 is a flow chart of the basic steps of a method for processing network data congestion.
  • the processing of network data congestion includes: Step 101: The base station determines that network data congestion meets a predetermined condition TH1; Step 102: The base station detects that the UE receiving the network data has the secondary carrier in an active state. Step 103: The base station deactivates the secondary carrier in step 102.
  • the network data congestion meets the predetermined condition TH1, and may be that the transport layer message is detected for N consecutive times to indicate that the UE data is network-congested, where N is a preset positive integer, and the value may be determined according to the test result in the network. .
  • the transmitting device that performs the congestion receives the packet of the sending end, and displays the congestion notification according to the service type (Type of service, referred to as TOS) field of the Internet Protocol (IP) layer.
  • IP Internet Protocol
  • ECN Exlicit Congestion Notification
  • the base station copies the ECN identifier in the transport IP header to the service IP header, and notifies the receiver UE that the network is congested, and after receiving the notification packet, the receiver UE transmits the control protocol (Transport Control).
  • Transmission Control Transmission Control
  • the ECN-Echo identifier of the TCP header is used to notify the sender that the transmission path is congested. After receiving the TCP identifier, the sender actively reduces the window to send the packet and adjusts the rate.
  • 3 is a flow chart of a specific application of a method for processing network data congestion.
  • the method for processing network data congestion in this embodiment includes: Step 201: A congestion-carrying transmission device receives a packet with a support ECN identifier sent by a sender, and sets a packet when the network data is congested.
  • the ECN identifier is 11, indicating that congestion is occurring, and is sent to the base station.
  • the congestion performing transmission device is based on the ECN (Explicit Congestion Notification) of the TOS (Type of Service) field of the IP (Internet Protocol) layer of the received message. ) Identification, determine whether the sender supports
  • ECN function specific: When the identifier is 01 or 10, it indicates that the ECN function is supported. When congestion occurs, the transmitting device that performs congestion sets the ECN flag to 11, indicating that congestion is occurring.
  • Step 202 The base station receives the transport layer IP packet including the ECN identifier sent by the transmitting device that performs congestion, and accumulates the count value C when the ECN identifier is 11, and jumps to step 203; when the ECN identifier is other values, Counting the value C, and ending the current process;
  • Step 204 The base station detects whether the UE that receives the network data has the secondary carrier in an active state. If yes, the process goes to step 205, otherwise, the current process ends.
  • the activation sequence is deactivated, that is, the earliest activated secondary carrier is selected to be deactivated among the activated secondary carriers; or deactivated according to the priority order of the secondary carrier, that is, the secondary carrier with lower priority is first activated.
  • the method in this embodiment may further include: Step 206: The base station copies the ECN identifier in the transport layer IP packet header into the service IP header, and sends the packet to the receiver. End UE, notifying the UE that network congestion occurs; Step 207: After receiving the notification message, the receiving end UE marks the ECN-Echo identifier of the TCP (Transport Control Protocol) packet header as 1, indicating that the transmission path is congested, and The TCP packet is sent to the sending end. Step 208: After receiving the TCP packet whose ECN-Echo ID is 1, the transmitting end actively reduces the window to send the packet, and performs rate adjustment.
  • TCP Transmission Control Protocol
  • the secondary carrier when the secondary carrier is deactivated, the air interface resource is released, and the air interface rate is reduced, thereby reducing the transmission network load. Decreasing the air interface rate will increase the value of the Round Trip Time (RTT), so that TCP adjusts the transmission window according to the RTT value.
  • RTT Round Trip Time
  • This network congestion adjustment method is more accurate and timely than the ECN network congestion adjustment, and is released at the same time.
  • the secondary carrier air interface bandwidth can be used for other transmission network terminals. In some scenarios, the air interface bandwidth can be saved and the air interface bandwidth utilization can be improved. In addition, the secondary carrier deactivation can greatly reduce the UE battery consumption. 4 is a basic flow chart of a method for processing data congestion within a base station.
  • the processing of data congestion in the base station includes: Step 301: The base station determines that the internal data congestion meets the predetermined condition TH2; Step 302: The base station detects that there is a secondary carrier supported by the base station and the UE receiving the internal data; Step 303 : The base station activates itself and the secondary carrier supported by the UE.
  • the set time can be a certain proportion of the length of the timer (discardtimelen), such as 2/3 of the discardtimelen. Discardtimelen indicates the length of the discard timer of the Packet Data Convergence Protocol (PDCP).
  • PDCP Packet Data Convergence Protocol
  • FIG. 5 is a flow chart showing a specific application of a method for processing data congestion inside a base station. As shown in FIG.
  • the method for processing data congestion of a base station in this embodiment includes: Step 401: A base station network layer user plane (RNLU) detects that a continuous M data packets of one UE are congested; Step 402: The RNLU determines the Whether the UE supports the CA, if it is supported, notifies the MAC layer that internal data congestion occurs, and the process proceeds to step 303; if not, the process proceeds to step 304. Specifically, in the process of UE access, the base station can know according to the capability information of the UE. Whether the UE supports CA and which CAs are supported. Step 403: After receiving the message that the UE is internally congested, the MAC layer detects whether there is a secondary carrier supported by the base station and the UE.
  • RNLU base station network layer user plane
  • Step 404 Activate the secondary carrier supported by both the UE and the base station.
  • the secondary carrier supported by the UE and the base station may be selected to be a secondary carrier whose PRB utilization is lower than the set value L.
  • the value of the L may be determined according to the specific networking environment and the test experience value. In this embodiment, The value of L can be 0.8. It should be understood that the PRB utilization rate represents the utilization of the air interface bandwidth. In this embodiment, the lower than 0.8 indicates that more than 20% of the bandwidth is idle. In this case, it is considered that the idle bandwidth can be used as the secondary carrier to access other interfaces. UE service of the cell.
  • the apparatus includes: a determining module 501 and a processing module 502; the determining module 501 is configured to determine whether data congestion meets a predetermined condition, and when it is determined that the predetermined condition is met, notifying the processing module 502 to activate or deactivate the corresponding Secondary carrier.
  • the two cases are included.
  • the first case is the processing of network data congestion, that is, when the determining module 501 determines that the network data congestion meets the predetermined condition TH1, the processing module 502 is notified; the processing module 502 first detects and receives the network data.
  • the second case is the processing of data congestion in the base station, that is, the determining module 502 determines that the internal data congestion of the base station satisfies the predetermined condition TH2
  • the notification processing module 502 first detects whether there is a secondary carrier supported by the base station and the UE receiving the internal data, and if so, activates the secondary carrier.
  • the network data congestion satisfies the predetermined condition TH1, and may be a packet that detects that the UE data transmitted by the transport layer is congested for the network N times, including the continuous N times of parsing into the transport message, including the ECN identifier indicating that network congestion occurs, and N is pre-stored. Positive integer.
  • the internal data congestion of the base station satisfies the predetermined condition TH2, and it can be set that congestion occurs in consecutive M data packets of one UE, and M is a pre-stored positive integer.
  • the processing module deactivates the secondary carrier in the active state.
  • the specific implementation manner may be: if only one secondary carrier of the UE receiving the network data is in an active state, the secondary carrier is deactivated; if multiple secondary carriers are activated at the same time And deactivating one or more secondary carriers, in the implementation process, may be deactivated according to the order of secondary carrier activation, that is, selecting the earliest activated secondary carrier to be deactivated among the activated secondary carriers; or according to the secondary carrier
  • the priority order is deactivated, that is, the secondary carrier with lower priority is activated first.
  • the processing module activates the secondary carrier supported by the base station and the UE receiving the internal data, and may activate the secondary carrier whose PRB utilization is lower than the set value L among the secondary carriers.
  • the value of L can be determined according to the specific networking environment and the test experience value.
  • the value of L can be 0.8. It is to be understood that those skilled in the art can make various changes or substitutions in accordance with the description of the invention and the specific embodiments thereof, all of which are within the scope of the claims of the present invention.
  • INDUSTRIAL APPLICABILITY As described above, a data congestion processing method and apparatus provided by an embodiment of the present invention have the following beneficial effects: effectively alleviating network data congestion and internal data congestion of a base station, and making utilization of secondary carrier air interface resources more reasonable, Improve the performance of the communication system and enhance the user experience.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention se rapporte au traitement de congestion de données dans un scénario d'agrégation de porteuses dans un système de communication. La présente invention concerne un procédé de traitement de congestion de données qui consiste : lorsque la congestion de données satisfait une condition prédéterminée, à activer ou à désactiver une porteuse secondaire correspondante selon le type de la congestion de données. La présente invention concerne également un dispositif de traitement de congestion de données.
PCT/CN2014/083589 2014-02-27 2014-08-01 Procédé et dispositif de traitement de congestion de données WO2015127759A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410070193.8 2014-02-27
CN201410070193.8A CN104883709A (zh) 2014-02-27 2014-02-27 一种数据拥塞的处理方法及装置

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CN105828380B (zh) * 2016-05-09 2019-01-25 中国联合网络通信集团有限公司 一种网络拥塞控制方法及基站
CN109803313B (zh) * 2017-11-17 2020-10-30 电信科学技术研究院 一种拥塞控制方法、终端及计算机可读存储介质
CN113556804A (zh) * 2020-04-24 2021-10-26 华为技术有限公司 通信网络设置方法以及终端设备

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CN101836400A (zh) * 2007-08-22 2010-09-15 爱立信电话股份有限公司 数据传输控制方法和设备
CN101997644A (zh) * 2009-08-24 2011-03-30 华为技术有限公司 速率调整方法、系统、编码方式选择方法和装置
CN102724715A (zh) * 2012-06-08 2012-10-10 华为技术有限公司 一种辅载波的控制方法、控制设备及移动通信系统
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