WO2012171217A1 - Procédé et dispositif d'ordonnancement de tâches de recherche de cellule et de mesure d'énergie - Google Patents

Procédé et dispositif d'ordonnancement de tâches de recherche de cellule et de mesure d'énergie Download PDF

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Publication number
WO2012171217A1
WO2012171217A1 PCT/CN2011/075865 CN2011075865W WO2012171217A1 WO 2012171217 A1 WO2012171217 A1 WO 2012171217A1 CN 2011075865 W CN2011075865 W CN 2011075865W WO 2012171217 A1 WO2012171217 A1 WO 2012171217A1
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WO
WIPO (PCT)
Prior art keywords
scheduling
tmeas
tcs
task
energy measurement
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2011/075865
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English (en)
Chinese (zh)
Inventor
翁建洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2011/075865 priority Critical patent/WO2012171217A1/fr
Priority to CN201180001003.1A priority patent/CN102754467B/zh
Publication of WO2012171217A1 publication Critical patent/WO2012171217A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • 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 the field of communications, and in particular, to a method and apparatus for scheduling cell search and energy measurement tasks.
  • Standby power consumption is an important indicator of UE (User Equipment) under wireless communication networks, especially an important performance indicator of mobile phones.
  • cell search and energy measurement are two tasks that are indispensable for the UE.
  • the purpose of the cell search is to provide accurate phase information for the cell energy measurement.
  • the phase information of the cell changes continuously.
  • the cell search is required periodically, and the cell information currently camped by the UE is obtained, so that the subsequent energy measurement can be performed.
  • the time of cell search and the time of cell energy measurement are fixed, and the period of cell search and the period of energy measurement are two sets of parameters independently maintained, respectively, wherein the 133 protocol specifies the same frequency in the standby state.
  • the period of energy measurement of the inter-frequency but does not clearly specify the execution period of the cell search.
  • the task with a long execution time determines the total duration of the task performed in the current cycle, when one task execution time in the cell search task and the energy measurement task is too long , will cause the UE to waste the task time.
  • the embodiment of the present invention provides a method and a device for scheduling a cell search and an energy measurement task.
  • the technical solution is as follows: A method of scheduling cell search and energy measurement tasks, the method comprising:
  • Setting a period for performing a cell search task is the same as or an integer multiple of a period of the energy measurement task
  • the execution time of the energy measurement task is Tmeas
  • the Tcs is adjusted according to the Tmeas before the scheduling, and the execution duration Tcs of the scheduled cell search task is obtained.
  • An apparatus for scheduling cell search and energy measurement tasks comprising:
  • a period setting module configured to set a period in which the cell search task is performed is the same as or a multiple of a period of the energy measurement task
  • the duration comparison module is configured to compare the execution time Tcs of the cell search task before scheduling and the execution time of the energy measurement task Tmeas;
  • a first adjustment module configured to: when the T2 is greater than Tmeas before the scheduling is performed, compare the Tmeas according to the Tcs before the scheduling, to obtain the energy after scheduling The execution time of the measurement task Tmeas;
  • a second adjustment module configured to: when the duration comparison module compares that the Tcs is less than Tmeas before the scheduling, adjust the Tcs according to the Tmeas before the scheduling, to obtain the scheduled cell.
  • the execution time of the search task is Tcs.
  • FIG. 1 is a schematic flowchart of a method for scheduling cell search and energy measurement tasks according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a method for scheduling cell search and energy measurement tasks according to Embodiment 2 of the present invention
  • 3 is a schematic diagram of time consumption of a task of performing cell search and energy measurement in a standby state after using the method provided by the present invention according to Embodiment 2 of the present invention
  • FIG. 4 is a schematic structural diagram of an apparatus for scheduling cell search and energy measurement tasks according to Embodiment 3 of the present invention
  • FIG. 5 is a comparison of durations of a device for scheduling cell search and energy measurement tasks according to Embodiment 3 of the present invention
  • Schematic diagram of the module
  • FIG. 6 is a schematic structural diagram of a first adjustment module in an apparatus for scheduling cell search and energy measurement tasks according to Embodiment 3 of the present invention
  • FIG. 7 is a schematic structural diagram of a second adjustment module in an apparatus for scheduling cell search and energy measurement tasks according to Embodiment 3 of the present invention. detailed description
  • An embodiment of the present invention provides a method for scheduling a cell search and an energy measurement task.
  • the execution entity of the method may be software installed in a UE, and implement a scheduling policy for a UE to perform a cell search and an energy measurement task.
  • the foregoing method specifically includes:
  • step 103 Comparing the execution time of the cell search task before the scheduling Tcs and the execution time of the energy measurement task Tmeas, if Tcs is greater than Tmeas before scheduling, step 103 is performed, if Tcs is less than Tmeas before scheduling, step 104 is performed;
  • Tcs Adjust Tcs according to Tmeas before scheduling, and obtain an execution duration Tcs of the scheduled cell search task.
  • a method for scheduling a cell search and an energy measurement task according to an embodiment of the present invention by setting a period for performing a cell search task to be the same as or an integer multiple of a period of energy measurement, so that the cell search task can be guaranteed to be executed. Execution during energy measurement tasks, improving the concurrency of cell search tasks and energy measurement tasks, and shortening The total task execution time reduces the standby power consumption of the UE and adjusts the short-execution task according to the task of the cell search task and the energy measurement task with a long execution time, and enhances the performance of the UE performing the cell search task and the energy measurement task.
  • the embodiment of the present invention provides a method for scheduling a cell search and an energy measurement task, which is improved on the basis of Embodiment 1, and the execution subject is the same as that in Embodiment 1;
  • a method for scheduling a cell search and an energy measurement task specifically includes:
  • the period of the energy measurement is specified by the 3GPP-TS-25.133 protocol, and is fixed.
  • the Tmeas_ period is used to indicate the period of the energy measurement, and the execution cell is set.
  • the search period is Tcs_period, and the period for performing cell search is set to be the same as or equal to the period of the energy measurement, and the specificity is:
  • Tcs— period N * Tmeas— period ;
  • N is a positive integer, and N can be adjusted according to the current signal environment. When the position of the UE changes frequently, the value of N is reduced. When the position of the UE is relatively stable, the value of N is expanded.
  • the cell search task and the energy measurement task should start execution at the same time.
  • step 202 comparing the execution time of the cell search task before the scheduling Tcs and the execution time of the energy measurement task Tmeas, if Tcs is greater than Tmeas, step 203 is performed, if Tcs is less than Tmeas, step 204 is performed;
  • the execution time of the set cell search task is Tcs, and the execution time of the energy measurement task is set to Tmeas.
  • the cell search task includes performing cell information search and performing cell search result calculation according to the cell information, so:
  • Tcs T_stepl+T_stepb;
  • T_step1 is the execution duration of the cell information search, and can be adjusted, and to ensure the performance of cell information search
  • T_stepl is at least T1
  • the execution time of the cell search before Tcs is adjusted is ⁇ 2 ;
  • T1 is 12s lot (time slot) and T2 as 45s lot as an example.
  • T—stepb is the calculation duration of the calculation result of the cell, and cannot be adjusted.
  • Tmeas M*T_sc_meas
  • T- sc-meas is the execution time for performing energy measurement tasks on a single cell, and can be adjusted.
  • M is the number of cells that need to perform energy measurement. For example, in the case of introducing a strong neighboring cell, M Is a positive integer greater than 0 and less than 6.
  • the Tmeas minimum is T3, and ⁇ 3 is the minimum required execution time to ensure the performance of the energy measurement task.
  • the execution time of the energy measurement task before adjusting Tmeas is set to T4.
  • Adjust Tmeas according to the Tcs before scheduling obtain the scheduled Tmeas, and end the scheduling operation. Further, adjusting Tmeas according to the Tcs before scheduling, specifically includes:
  • Tcs before scheduling is less than or equal to T3
  • Tme aS T3 after scheduling
  • the scheduled Tme aS T CS is set;
  • Tcs before scheduling is greater than or equal to T4
  • Adjust the Tcs according to the Tmeas before scheduling obtain the scheduled Tcs, and end the scheduling operation; accordingly, adjust the Tcs according to the Tmeas before the scheduling, specifically:
  • the specific includes:
  • T_stepl 12 S lot after scheduling is set ;
  • T_stepl Tmeas after scheduling
  • a method for scheduling a cell search and an energy measurement task according to an embodiment of the present invention by setting a period for performing a cell search task to be the same as or an integer multiple of a period of energy measurement, so that the cell search task can be guaranteed to be executed.
  • the energy measurement task is executed, which improves the concurrency of the cell search task and the energy measurement task, can shorten the total task execution time, reduce the standby power consumption of the UE, and adjust and execute according to the task of the cell search task and the energy measurement task with a long execution time.
  • the shorter time task enhances the performance of the UE performing cell search tasks and energy measurement tasks.
  • the device provides a device for scheduling cell search and energy measurement tasks. As shown in FIG. 4, the device specifically includes:
  • a period setting module 301 configured to set a period of performing a cell search task to be the same as an integer multiple of a period of the energy measurement task;
  • the duration comparison module 302 is configured to compare the execution duration Tcs of the cell search task before scheduling and the execution time Tmeas of the energy measurement task;
  • the first adjustment module 303 is configured to adjust the Tmeas according to the Tcs before the scheduling, and obtain the execution time length Tmeas of the scheduled energy measurement task, when the Tcs is greater than Tmeas before the scheduling is performed. ;
  • the second adjustment module 304 is configured to compare the current length comparison module 302 to obtain that the Tcs is less than Tmeas before the scheduling, and then adjust the Tcs according to the Tmeas before the scheduling, and obtain the execution time Tcs o of the scheduled cell search task. Further, the cell search task includes performing cell information search and calculating a cell search result;
  • Tcs T_step1+T_stepb, where T_stepl is the execution duration of the cell information search, and can be adjusted.
  • T_stepb is the execution duration of the cell search result, and cannot be adjusted.
  • the duration comparison module 302 specifically includes:
  • the first obtaining unit 3021 is configured to acquire a minimum execution time length Tcs of the cell search task before scheduling, where
  • Tcs Tl+T—stepb, T1 is the minimum required execution time to ensure the performance of cell information search;
  • the duration comparison unit 3023 is configured to compare the shortest execution duration Tcs of the cell search task before scheduling and the shortest execution duration Tmea S of the energy measurement task.
  • the first adjustment module 303 specifically includes:
  • T4 is the execution time of the energy measurement task before the adjustment.
  • the second adjustment module 304 is specifically configured to adjust the Tcs according to the Tmeas adjustment before the scheduling.
  • the second adjustment module 304 specifically includes:
  • T2 is the execution duration of the cell information search before the adjustment is performed.
  • a device for scheduling a cell search and an energy measurement task may be implemented by software embedded in a UE, and the software implements a scheduling policy for the UE to perform a cell search and an energy measurement task.
  • An embodiment of the present invention provides a device for scheduling a cell search and an energy measurement task, which is configured to ensure that the cell search task is guaranteed to be executed by setting the period of performing the cell search task to be the same as or equal to the period of the energy measurement.
  • the energy measurement task is executed, which improves the concurrency of the cell search task and the energy measurement task, can shorten the total task execution time, reduce the standby power consumption of the UE, and adjust and execute according to the task of the cell search task and the energy measurement task with a long execution time. The shorter time task enhances the performance of the UE performing cell search tasks and energy measurement tasks.
  • the apparatus for scheduling cell search and energy measurement tasks provided by the foregoing embodiments is only illustrated by using the foregoing functional modules. In actual applications, the foregoing function assignments may be completed by different functional modules as needed. , the internal structure of the device that will schedule the cell search and energy measurement tasks is divided into different functional modules, To complete all or part of the functions described above.
  • the apparatus for scheduling the cell search and the energy measurement task provided by the foregoing embodiment is the same as the method embodiment of the method for scheduling the cell search and the energy measurement task. For the specific implementation process, refer to the method embodiment, and details are not described herein again.

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

Abstract

La présente invention concerne un procédé et un dispositif d'ordonnancement de tâches de recherche de cellule et de mesure d'énergie et elle a trait au domaine des communications. La présente invention suppose de paramétrer la durée de réalisation de la tâche de recherche de cellule de manière à ce qu'elle soit égale à la durée de réalisation de la tâche de mesure d'énergie, ou à ce qu'elle en soit un multiple entier, et garantit ainsi que la tâche de recherche de cellule peut être réalisée au moment de la réalisation de la tâche de mesure d'énergie, ce qui accroît la simultanéité de la tâche de recherche de cellule et de la tâche de mesure d'énergie, raccourcit le temps d'exécution de l'ensemble des tâches et diminue la puissance en veille d'un équipement d'abonné. L'invention ajuste la tâche ayant le temps d'exécution le plus court en fonction de la tâche ayant le temps d'exécution le plus long, autrement dit la tâche de recherche de cellule ou la tâche de mesure d'énergie, ce qui améliore les performances de l'équipement d'abonné destiné à réaliser la tâche de recherche de cellule et la tâche de mesure d'énergie.
PCT/CN2011/075865 2011-06-17 2011-06-17 Procédé et dispositif d'ordonnancement de tâches de recherche de cellule et de mesure d'énergie Ceased WO2012171217A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2011/075865 WO2012171217A1 (fr) 2011-06-17 2011-06-17 Procédé et dispositif d'ordonnancement de tâches de recherche de cellule et de mesure d'énergie
CN201180001003.1A CN102754467B (zh) 2011-06-17 2011-06-17 一种调度小区搜索和能量测量任务的方法和装置

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Application Number Priority Date Filing Date Title
PCT/CN2011/075865 WO2012171217A1 (fr) 2011-06-17 2011-06-17 Procédé et dispositif d'ordonnancement de tâches de recherche de cellule et de mesure d'énergie

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CN104798408A (zh) * 2012-12-04 2015-07-22 高通股份有限公司 用于增强型移动功率管理的装置和方法
WO2020186426A1 (fr) * 2019-03-18 2020-09-24 华为技术有限公司 Procédé de recherche de cellule, dispositif et système

Citations (1)

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CN1501612A (zh) * 1999-09-06 2004-06-02 ��ʽ����Ntt����Ħ 搜索邻近小区的一种控制方法，移动站及移动通信系统

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CN1501612A (zh) * 1999-09-06 2004-06-02 ��ʽ����Ntt����Ħ 搜索邻近小区的一种控制方法，移动站及移动通信系统

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