WO2016107175A1 - Procédé et dispositif de configuration de porteuse secondaire - Google Patents

Procédé et dispositif de configuration de porteuse secondaire Download PDF

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Publication number
WO2016107175A1
WO2016107175A1 PCT/CN2015/086235 CN2015086235W WO2016107175A1 WO 2016107175 A1 WO2016107175 A1 WO 2016107175A1 CN 2015086235 W CN2015086235 W CN 2015086235W WO 2016107175 A1 WO2016107175 A1 WO 2016107175A1
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WO
WIPO (PCT)
Prior art keywords
secondary carrier
threshold
load information
measurement
target
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PCT/CN2015/086235
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English (en)
Chinese (zh)
Inventor
刘娜
彭云鹃
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中兴通讯股份有限公司
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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 WO2016107175A1 publication Critical patent/WO2016107175A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This document relates to the field of wireless communications, and in particular, to a secondary carrier configuration method and apparatus.
  • ITU International Telecommunications Union
  • IMT-Advanced International Mobile Telecommunications-Advanced, Advanced International Mobile Telecommunications
  • 1G bps and 500M bps and put a very high demand on the average spectral efficiency of the system, especially the edge spectrum efficiency.
  • 3GPP The 3rd Generation Partnership Project
  • LTE Long Term Evolution
  • CA Carrier Aggregation
  • the introduction of the carrier aggregation function can meet the larger bandwidth requirements of the next-generation mobile cellular communication system, that is, the Long Term Evolution Advanced (LTE-Advanced) system, and is an essential technology for maintaining backward compatibility with the LTE system.
  • LTE-Advanced Long Term Evolution Advanced
  • the maximum bandwidth supported by the LTE system is 20 MHz
  • the LTE-A system extends the maximum transmission bandwidth to 100 MHz through the carrier aggregation function.
  • the carrier aggregation means that the Evolved Node B (eNB) aggregates two or more carriers and up to five carriers, and delivers the message to the user equipment through the RRC (Radio Resource Control) reconfiguration message.
  • UE User Equipment
  • carrier aggregation includes three scenarios: in-band continuous carrier aggregation, in-band non-contiguous carrier aggregation, and inter-band carrier aggregation.
  • the eNB When the eNB adds the secondary carrier to the UE according to the coverage report of the coverage neighboring cell or the UE where the UE is located, the eNB does not consider the load information of the secondary carrier, so that the added secondary carrier information cannot be performed due to excessive load.
  • Resource scheduling which causes the eNB to be unable to provide the UE with large traffic scheduling for the uplink and downlink services, which seriously affects the service experience of the UE.
  • the eNB configures a secondary carrier for the UE, it needs to allocate corresponding physical resources, such as PUCCH, to the Pcell. (Physical Uplink Control CHannel, physical uplink control channel) resources, etc. If the current secondary carrier cannot be scheduled or set to the deactivated state due to the load, the physical resource will still be occupied, and the UE will always report the corresponding physical information frequently, thus causing waste of physical resources and air interface resources.
  • PUCCH Physical Uplink Control CHannel, physical uplink control channel
  • the embodiments of the present invention provide a secondary carrier configuration method and device based on load information, which fully utilizes resource scheduling of the secondary carrier to avoid waste of physical resources and air interface resources, and can improve the spectrum efficiency of the system.
  • the embodiment of the invention provides a load-based secondary carrier configuration method, including:
  • the load information includes: a physical resource PRB usage rate, a number of users, or a CPU usage of a central processing unit.
  • the method before the acquiring the load information of the target neighboring cell of the user equipment UE, the method further includes: presetting a load information corresponding threshold and a measurement waiting timing threshold for prohibiting loading of the secondary carrier; the load information corresponding threshold includes: PRB Usage threshold, user threshold, and CPU usage threshold.
  • the obtaining the load information of the target neighboring cell of the user equipment UE includes: acquiring the target neighboring area of the UE and the load information of the UE according to the neighboring cell list of the UE or the measurement report of the UE.
  • the configuring the secondary carrier for the UE according to the load information includes:
  • the target neighboring cell is added as the secondary carrier of the UE;
  • the measurement waiting time exceeds the measurement waiting timing threshold
  • the target neighboring cell is added as the secondary carrier of the UE;
  • the measurement waiting time exceeds the measurement waiting timing threshold
  • An embodiment of the present invention further provides a secondary carrier configuration apparatus, including:
  • An information acquiring module configured to acquire load information of a target neighboring cell of the user equipment UE
  • the load information includes: a physical resource PRB usage rate, a number of users, or a CPU usage of a central processing unit.
  • the device further includes a setting module, where the setting module is configured to preset a load information corresponding threshold for prohibiting loading of the secondary carrier before the information acquiring module acquires load information of the target neighboring area of the UE.
  • the waiting timing threshold is measured; the load information corresponding threshold includes: a PRB usage threshold, a user threshold, and a CPU usage threshold.
  • the acquiring, by the information acquiring module, the load information of the target neighboring cell of the user equipment UE includes: the information acquiring module acquiring the target neighboring area of the UE according to the neighboring cell list of the UE or the measurement report of the UE And its load information.
  • the configuring, by the configuration module, configuring the secondary carrier for the UE according to the load information includes:
  • the configuration module reconfigures the measurement of the frequency point to which the target cell belongs;
  • the configuration module adds the target neighboring cell as the secondary carrier of the UE;
  • the configuration module adds the target neighboring cell as the secondary carrier of the UE;
  • the configuration module reconfigures the measurement of the frequency point to which the target cell belongs;
  • the configuration module When the CPU usage is less than the CPU usage threshold of the forbidden loading of the secondary carrier, the configuration module adds the target neighboring cell as the secondary carrier of the UE;
  • the configuration module reconfigures the measurement of the frequency point to which the target cell belongs.
  • the embodiment of the invention further provides a computer readable storage medium storing program instructions, which can be implemented when the program instructions are executed.
  • the technical solution provided by the embodiment of the present invention comprehensively considers the actual load situation of the target neighboring area, selectively configures the secondary carrier, ensures that the added secondary carrier resources can be fully utilized, improves user service traffic, and effectively avoids The waste of physical resources and air interface resources, improve the resource utilization of the secondary carrier, and improve the spectrum efficiency of the system.
  • FIG. 1 is a schematic diagram of a method for configuring a secondary carrier according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for configuring a secondary carrier according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a secondary carrier configuration apparatus according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a method for configuring a secondary carrier according to an embodiment of the present invention, including the following steps:
  • Step 101 Acquire load information of a target neighboring cell of the user equipment UE.
  • the method Before acquiring the load information of the target neighboring cell of the user equipment UE, the method further includes: setting a corresponding threshold of the load information for prohibiting the loading of the secondary carrier and a measurement waiting timing threshold;
  • the corresponding thresholds of the information include: PRB usage threshold, user threshold, and CPU usage threshold.
  • the load information includes: a physical resource PRB usage rate, a number of users, or a CPU usage of a central processing unit.
  • the acquiring the load information of the target neighboring cell of the user equipment UE includes: acquiring the target neighboring area of the UE and the load information of the UE according to the neighboring cell list of the UE or the measurement report of the UE.
  • Step 102 Configure a secondary carrier for the UE according to the load information.
  • the measurement waiting time exceeds the measurement waiting timing threshold
  • the target neighboring cell is added as the secondary carrier of the UE;
  • the measurement waiting time exceeds the measurement waiting timing threshold
  • the target neighboring cell is added as the secondary carrier of the UE;
  • the measurement waiting time exceeds the measurement waiting timing threshold
  • Embodiment 2 is a flowchart of a method for configuring a secondary carrier according to an embodiment of the present invention.
  • Embodiment 1, Embodiment 2, and Embodiment 3 are applicable to FIG. 2.
  • the number of the load information user 200 of the target neighboring area is smaller than the threshold 320 for which the secondary carrier is prohibited, and the process proceeds to S204; if the number of users of the target neighboring area is greater than or equal to the threshold 320 for which the secondary carrier is prohibited, the process proceeds to S205;
  • S204 The serving cell performs an Scell adding process.
  • the serving cell adds the target neighboring cell as the secondary carrier of the UE.
  • S205 a serving cell start cycle timer
  • step S206 The serving cell determines whether the period timer expires. If the timeout expires, the process goes to step S207. If the timeout has not expired, the process goes to step S206 to continue to determine whether the periodic timer expires.
  • the time used for recording is considered to be timeout if the period timer exceeds the set threshold 1S;
  • S207 The serving cell reconfigures the measurement of the frequency point of the target neighboring cell
  • the serving cell starts the measurement waiting timer. After the timer 1S expires, the serving cell configures or reconfigures the measurement of the frequency point of the target neighboring cell.
  • the load information is based on the PRB resource usage rate, and the PRB usage threshold of the cell to which the secondary carrier is prohibited from being added is set to 80%; the measurement waiting timer is set to 2S;
  • the UE reports the measurement report of the target neighboring cell that meets the condition to the serving cell, and the serving cell sends a request message for acquiring the load information to the target neighboring cell, and the target neighboring cell reverses the PRB usage rate of the current cell by 70%. Feed to the service area;
  • the process proceeds to step S204; and the PRB usage rate of the target neighboring area is greater than or equal to the PRB usage rate of the secondary carrier.
  • the threshold is 80%, proceed to step S205;
  • the serving cell performs a secondary carrier Scell adding process.
  • the serving cell adds the target neighboring cell as a secondary carrier of the UE.
  • S205 a serving cell start cycle timer
  • step S206 The serving cell determines whether the period timer expires. If the timeout expires, the process goes to step S207. If the timeout has not expired, the process goes to step S206 to continue to determine whether the periodic timer expires.
  • the time used for recording is considered to be timeout if the period timer exceeds the set threshold 2S;
  • S207 The serving cell reconfigures the measurement of the frequency point of the target neighboring cell
  • the serving cell starts the measurement waiting timer. After the timer 2S times out, the serving cell configures or reconfigures the measurement of the frequency point of the target neighboring cell.
  • the load information is based on the baseband board CPU usage rate, and the CPU usage threshold of the cell prohibiting the addition of the secondary carrier is set to 80%; the measurement waiting timer is set to 2S;
  • the UE reports the measurement report of the target neighboring cell that meets the condition to the serving cell, and the serving cell sends a request message for acquiring the load information to the target neighboring cell, and the target neighboring cell feeds back 70% of the baseband board CPU usage rate of the current cell to the serving cell;
  • the serving cell judges that the baseband board CPU usage rate of the target neighboring area is 70% smaller than the prohibition of adding the secondary carrier. If the CPU usage threshold is 80%, the process proceeds to step S204; when it is determined that the CPU usage rate of the target neighboring area is greater than or equal to 80% of the CPU usage threshold for prohibiting the addition of the secondary carrier, the process proceeds to step S205;
  • the serving cell performs a secondary carrier Scell adding process.
  • the serving cell adds the target neighboring cell as a secondary carrier of the UE.
  • S205 a serving cell start cycle timer
  • step S206 The serving cell determines whether the period timer expires. If the timeout expires, the process goes to step S207. If the timeout has not expired, the process goes to step S206 to continue to determine whether the periodic timer expires.
  • the time used for recording is considered to be timeout if the period timer exceeds the set threshold 2S;
  • S207 The serving cell reconfigures the measurement of the frequency point of the target neighboring cell
  • the serving cell starts the measurement waiting timer. After the timer 2S times out, the serving cell configures or reconfigures the measurement of the frequency point of the target neighboring cell.
  • the secondary carrier configuration apparatus includes an information acquiring module 301 and a configuration module 302, where:
  • the information acquiring module 301 is configured to acquire load information of a target neighboring cell of the user equipment UE;
  • the configuration module 302 is configured to configure a secondary carrier for the UE according to the load information.
  • the load information includes: a physical resource PRB usage rate, a number of users, or a CPU usage of a central processing unit;
  • the device further includes a setting module, where the setting module is configured to preset a load information corresponding threshold for prohibiting loading of the secondary carrier before the information acquiring module acquires load information of the target neighboring area of the UE.
  • the waiting timing threshold is measured;
  • the load information corresponding threshold includes: a PRB usage threshold, a user threshold, and a CPU usage threshold;
  • the information acquiring module 301 acquiring the load information of the target neighboring cell of the user equipment UE includes: the information acquiring module 301 acquiring the target neighboring cell of the UE according to the neighboring cell list of the UE or the measurement report of the UE And its load information.
  • the configuration module 302 configured to configure the secondary carrier for the UE according to the load information, includes:
  • the target neighboring cell is added as the secondary carrier of the UE;
  • the measurement waiting time exceeds the measurement waiting timing threshold
  • the target neighboring cell is added as the secondary carrier of the UE;
  • the measurement waiting time exceeds the measurement waiting timing threshold
  • the technical solution provided by the embodiment of the present invention comprehensively considers the actual load situation of the target neighboring area, selectively configures the secondary carrier, ensures that the added secondary carrier resources can be fully utilized, improves user service traffic, and effectively avoids The waste of physical resources and air interface resources, improve the resource utilization of the secondary carrier, and improve the spectrum efficiency of the system.

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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 configuration de porteuse secondaire. Le procédé consiste à : tout d'abord, acquérir des informations de charge d'une cellule voisine cible d'un équipement utilisateur (UE) ; et, ensuite, configurer une porteuse secondaire pour l'UE selon les informations de charge. La présente invention concerne également un dispositif de configuration de porteuse secondaire. Le dispositif comprend un module d'acquisition d'informations et un module de configuration.
PCT/CN2015/086235 2014-12-31 2015-08-06 Procédé et dispositif de configuration de porteuse secondaire WO2016107175A1 (fr)

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CN201410855415.7 2014-12-31
CN201410855415.7A CN105813205A (zh) 2014-12-31 2014-12-31 一种辅载波配置方法及装置

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CN111371537A (zh) * 2018-12-26 2020-07-03 中国移动通信集团四川有限公司 小区载波聚合参数优化方法、装置、设备及存储介质

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WO2013075738A1 (fr) * 2011-11-22 2013-05-30 Nokia Siemens Networks Oy Optimisation d'agrégation de porteuse
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Publication number Priority date Publication date Assignee Title
CN111371537A (zh) * 2018-12-26 2020-07-03 中国移动通信集团四川有限公司 小区载波聚合参数优化方法、装置、设备及存储介质

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