WO2011032504A1 - Procédé et système de communication dans une scène en mouvement à vitesse élevée - Google Patents

Procédé et système de communication dans une scène en mouvement à vitesse élevée Download PDF

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Publication number
WO2011032504A1
WO2011032504A1 PCT/CN2010/077030 CN2010077030W WO2011032504A1 WO 2011032504 A1 WO2011032504 A1 WO 2011032504A1 CN 2010077030 W CN2010077030 W CN 2010077030W WO 2011032504 A1 WO2011032504 A1 WO 2011032504A1
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WO
WIPO (PCT)
Prior art keywords
attribute value
mobile
mobile terminal
macro cell
speed
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PCT/CN2010/077030
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English (en)
Chinese (zh)
Inventor
李良斌
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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.)
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Publication of WO2011032504A1 publication Critical patent/WO2011032504A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/324—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/04—Reselecting a cell layer in multi-layered cells

Definitions

  • the present invention relates to the field of mobile communications, and more particularly to a communication method and system in a high speed mobile scenario. Background technique
  • 3G the 3rd Generation
  • CDMA Code Division Multiple Access
  • WCDMA Wideband CDMA
  • the radio frequency and baseband of multiple adjacent physical macro cells are set to the same macro cell by using the same frequency and radio parameter settings.
  • a plurality of adjacent physical macro cells transmit the same forward signal, which is equivalent to the same frequency transmit diversity. Compensating and eliminating the delay caused by different distances of the optical fiber, so that multiple adjacent physical macro cells in the logical macro cell are strictly synchronized, so that multiple adjacent physical macro cells can form a coverage area.
  • the radio resource capacity of a logical macro cell is the same as the capacity of a plurality of adjacent physical macro cells, and although the coverage is increased by many times, the radio resource capacity is not increased.
  • the common physical cell is called a logical macro cell. .
  • the logical macro cell is expanded by many times, but the wireless resource capacity is not increased.
  • the private network coverage mode is difficult to control non-high-speed mobile users to access the private network.
  • the mobile user shares the wireless resources of the logical macro cell. Because the coverage of the logical macro cell is several times larger than that of the physical macro cell, it is likely that there are many non-high-speed mobile users in the coverage of the logical macro cell.
  • the high-speed train passes the coverage area of the logical macro cell, the high-speed train is on the high-speed train. High-speed mobile users have less available wireless resources, which leads to a drop in the quality of high-speed mobile users and a decrease in user experience. Summary of the invention
  • the main object of the present invention is to provide a communication method and system in a high-speed mobile scenario, which can solve the problem that high-speed mobile users can use less radio resources due to more non-high-speed mobile users in a logical macro cell.
  • the present invention provides a communication method in a high-speed mobile scenario, where the mobile terminal accesses the current logical macro cell, and the method further includes:
  • the corresponding communication policy is executed according to the current mobile terminal attribute value of the mobile terminal and the regional status attribute value of the current logical macro cell.
  • the mobile state attribute value and the regional state attribute value are maintained in a network side database;
  • the mobile state attribute value includes at least: high speed movement, non-high speed movement, and to be confirmed;
  • the area status attribute value includes at least: a high speed train is about to arrive or is passing, and the high speed train has left.
  • the mobile terminal When the timer expires, the mobile terminal does not initiate a wireless connection, and sets the mobile state attribute value to be confirmed; otherwise, determines whether the network side database contains the service record of the mobile terminal within the timer duration. And an access record; if yes, setting the mobile state attribute value to a mobile status attribute value corresponding to the most recent service record or access record; if not, setting the mobile status attribute value to be confirmed.
  • the mobile state attribute value When the service duration of the current logical macro cell is greater than or equal to a preset duration threshold, the mobile state attribute value is set to a non-high speed movement; otherwise, the mobile status attribute value is set to a high speed movement ;
  • the moving state attribute value is set to a high speed movement; otherwise, the The movement status attribute value is set to non-high speed movement.
  • the acknowledging the regional state attribute value of the current logical macro cell specifically:
  • the regional state attribute value is set to be that the high-speed train is about to arrive or is passing; when there is no mobile terminal in the high-speed mobile state in the current logical macro cell, The zone status attribute value is set to the high speed train that has left.
  • the method further includes: confirming according to a regional state attribute value of the current logical macro cell, The regional state attribute value of the adjacent logical macro cell of the pre-logical macro cell.
  • the method further includes: establishing, in the network side database, a mapping relationship between the mobile state attribute value, the area status attribute value, and the communication policy.
  • the regional state attribute value of the current logical macro cell is a high-speed train that is about to arrive or is passing, and the mobile terminal's mobile state attribute value is high-speed mobile, or to be confirmed, assigning a wireless connection to the mobile terminal, and providing priority to the mobile terminal High quality of service QOS business guarantee;
  • the mobile terminal If the regional state attribute value of the current logical macro cell is about to arrive or is passing, and the mobile state attribute value of the mobile terminal is non-high speed mobile, the mobile terminal is refused to allocate a wireless connection and provide QOS service guarantee, or The mobile terminal allocates a wireless connection and provides a low priority QOS service guarantee;
  • the regional state attribute value of the current logical macro cell is a wireless connection assigned to the mobile terminal when the high-speed train has left, and provides a high priority QOS service guarantee.
  • the present invention also provides a communication system in a high-speed mobile scenario, the system comprising: an attribute setting module, configured to confirm a mobile state attribute value of a mobile terminal accessing a current logical macro cell; and is further configured to confirm a current logical macro cell area State attribute value;
  • the policy execution module is configured to execute a corresponding communication policy according to the attribute value of the mobile state and the attribute value of the regional state.
  • the system further includes a network side database, configured to store the mobile state attribute value and the area state attribute value; and further configured to store the dynamic state attribute value, the attribute value of the area status, and a mapping relationship of the communication policy;
  • the attribute setting module is further configured to confirm the mobile state attribute value and the area status attribute value in the network side database
  • the policy execution module is further configured to: according to the mapping in the network side database And the mobile state attribute value and the area status attribute value confirmed by the attribute setting module, and the communication strategy is executed.
  • the communication scheme in the high-speed mobile scenario of the present invention performs the corresponding communication strategy on the mobile terminal by confirming the regional state of the logical macro cell and the mobile state of the internal mobile terminal, and according to the regional state and the mobile state:
  • high-speed mobile users are provided with high priority QOS service guarantee, low-level service guarantee is provided for non-high-speed mobile users, or QOS service guarantee level of non-high-speed mobile users is lowered, so that radio resources are prioritized Serving high-speed mobile users; providing normal wireless connectivity and service guarantee for non-high-speed mobile users when there is no high-speed train passing through the logical macro cell; thus, even if there are many non-high-speed mobile users inside the logical macro cell, high speed can be guaranteed.
  • the communication quality of mobile users improves the user experience.
  • FIG. 1 is a schematic flow chart of a communication method in a high-speed mobile scenario according to the present invention
  • FIG. 2 is a schematic structural view of a high-speed railway network according to the present invention.
  • FIG. 3 is a schematic structural diagram of a communication system in a high-speed mobile scenario according to the present invention. detailed description
  • the mobile user is divided into a high-speed mobile user and a non-high-speed mobile user, wherein the mobile user whose moving speed is less than 120 km/h is called a non-high-speed mobile user, and is located in a non-high-speed train; the moving speed is greater than or equal to 120 km/
  • the mobile user of h is called a high-speed mobile user and is located in a high-speed train.
  • the main idea of the communication method in the high-speed mobile scenario of the present invention is: Under the coverage of the logical macro cell, if there is no high-speed mobile user access, the non-high-speed mobile user can normally use the radio resource of the current logical macro cell; Current logical macro cell when mobile user accesses The wireless resources are prioritized for high-speed mobile users.
  • FIG. 1 is a schematic flowchart diagram of a communication method in a high-speed mobile scenario according to the present invention, where the process includes:
  • Step 101 The mobile terminal accesses the current logical macro cell, and confirms the mobile state attribute value of the mobile terminal.
  • the mobile state attribute can be represented by a High Speed Train State.
  • the High Speed Train State attribute contains at least three states: High Speed Move, Non High Speed Move, and To Be Confirmed. You can set the corresponding attribute values for the above three states, such as: In High Speed Train State, No In High Speed Train State, Pending State.
  • the first type when the mobile terminal is released by the wireless connection, the preset timer is started; when the timer expires, the mobile terminal does not initiate a wireless connection, the mobile state attribute value is set to be confirmed; otherwise, the timer is Determine whether the network side database contains the service record and access record of the mobile terminal within the duration; if yes, set the mobile state attribute value to the mobile status attribute value corresponding to the latest service record or access record; if not, it will move The status attribute value is set to be confirmed.
  • the mobile terminal When the mobile terminal accesses a logical macro cell, the mobile terminal may be released by the wireless connection (such as the wireless connection release caused by the active or passive shutdown of the mobile terminal), or the mobile terminal initiates the wireless connection.
  • the wireless connection such as the wireless connection release caused by the active or passive shutdown of the mobile terminal
  • the above manner of using the timer to confirm the mobile state attribute value of the mobile terminal is suitable for the case where the mobile terminal is released by the wireless connection.
  • the mobile terminal can use the following second method to confirm during the use of the wireless connection. Move the status attribute value.
  • the second type when the service duration of the current logical macro cell is greater than or equal to the preset duration threshold, the mobile state attribute value is set to non-high speed movement; otherwise, the mobile status attribute value is set to high speed movement;
  • the moving state attribute value is set to a high speed movement; otherwise, the mobile state attribute value is set to Non-high speed movement.
  • the mobile state attribute stored in the network side database matches the current mobile state of the mobile terminal, it is not necessary to reset the value of the mobile state attribute stored in the database; if the mobile stored in the network side database If the status attribute value is null, the mobile status attribute value needs to be set according to the current mobile state of the mobile terminal; if the mobile status attribute value stored in the network side database does not match the current mobile status of the mobile terminal, the dynamic terminal needs to be The current movement state updates, ie resets, the value of the movement status attribute. The way the value is.
  • a preset timer is immediately started, assuming that the timer duration is 10 seconds; if the mobile terminal is within 10 seconds If the wireless connection is not initiated again, the current mobile state attribute value of the mobile terminal is set to be confirmed in the wireless network database; if the mobile terminal initiates the wireless connection again within 10 seconds, it is necessary to confirm whether to save in the network side database.
  • the network side database stores the service record and access record (including one or more records) of the mobile terminal in the latest period of time, and the mobile status corresponding to each service record or access record.
  • Property value The duration of the most recent period of time may be set according to requirements, such as setting the network side database to store only the service record and access record of the mobile terminal within 3 hours, during which time multiple service records may be generated and
  • the access record, for each service record or access record, the network side database saves the mobile state attribute value of the mobile terminal. If it is within the timer, confirm that the network side database contains the service record or access record, confirm the current nearest service record or access record, and assign its corresponding mobile state attribute value to the current mobile status attribute.
  • the duration threshold is an empirical value determined according to the coverage of the logical macro cell, the speed of the train, and the like.
  • the service duration of the mobile terminal in the current logical macro cell is greater than or equal to the duration threshold. If the mobile terminal moves slowly in the current logical macro cell, the mobile state attribute is set to non-high speed mobile, that is, the user is a non-high speed mobile user; when the service duration is less than the time limit, the mobile terminal is currently The speed of movement in the logical macro cell is relatively fast, and the moving state attribute of the high-speed train is set to be high-speed mobile, that is, the user is a high-speed mobile user.
  • the RTD reflects the distance between the mobile terminal and its serving base station, and the RTD slope reflects the rate of bidirectional delay variation of the mobile terminal and the serving base station.
  • the RTD slope of the reverse link of the high-speed mobile terminal is greater than that of the non-high-speed mobile terminal, that is, the reverse link of the high-speed mobile terminal is faster than that of the non-high-speed mobile terminal.
  • the above slope threshold is an empirical value determined based on factors such as the train speed, the geographic environment in which the railway is located, and the coverage of the logical macrocell.
  • determining the RTD slope change value of the reverse link of the mobile terminal the following manner may be used: First, determining a single period RTD slope change value, for example, an RTD slope has a set period of 10 seconds, then for one period , respectively, the RTD slopes of the 0th and 10th seconds are collected, and the difference between the two is obtained to obtain the RTD slope change value of the period, and the RTD slope change value is divided by the period duration, such as 10 seconds, to obtain the RTD change slope.
  • First confirm the average value of the RTD slope change of multiple cycles. For multiple (one or more) consecutive cycles, determine the RTD slope change value for each cycle, and take the average value to obtain the average value of the RTD slope change.
  • RTD skew of the reverse link of the mobile terminal There are other ways to determine the rate change value, and it is not limited to the above two methods.
  • the mobile terminal is a high-speed mobile terminal, and the moving state is set to a high-speed movement; Otherwise set to non-high speed movement.
  • Step 102 Confirm the regional state attribute value of the current logical macro cell.
  • the area status attribute of the logical macro cell is also maintained in the network side database, which can be represented by the Sector State.
  • the Sector State attribute contains at least two states: the high-speed train is about to arrive or is passing, and the high-speed train has left. You can set the corresponding attribute values for the above two states, such as: High Speed Train Passing State, No High Speed Train Passing State.
  • the confirmation of the status attribute value of the area can be as follows:
  • the regional state attribute value is set to be that the high-speed train is about to arrive or is passing; when the current logical macro cell does not contain the mobile terminal in the high-speed mobile state, the regional status attribute is The value is set to the high speed train has left.
  • the area status attribute value stored in the network side database matches the current area status of the logical macro cell, it is not necessary to reset the value of the area status attribute stored in the database; if the network side database is stored If the value of the area status attribute is null, you need to set the status attribute value of the area according to the current area status of the logical macro cell. If the area status attribute value stored in the network side database does not match the current area status of the logical macro cell, you need to The status attribute value of the area is updated, that is, reset according to the current regional status of the logical macro cell.
  • a logical macro cell may have both high-speed trains and non-high-speed trains passing through, that is, both high-speed mobile users and non-high-speed mobile users.
  • the regional status attribute of the current logical macro cell The value should be set to the high-speed train that is about to arrive or is passing; if the users in a logical macro cell are all non-high-speed mobile users, the regional state attribute value of the current logical macro cell should be set to the high-speed train has left.
  • the regional state attribute value of the adjacent logical macro cell may also be confirmed.
  • the value of the regional state attribute of the adjacent logical macro cell is also confirmed as the high-speed train is about to arrive or is passing; the regional state attribute value of the current logical macro cell is the value of the regional state attribute of the adjacent logical macro cell when the high-speed train has left. Confirmed that the high speed train has left.
  • the current logical macro cell and its adjacent logical macro cell are both cells covering the railway.
  • the adjacent logical macro cells of the logical macro cell B are A and C, and the eight and the B and C can Forming a mutual switching relationship, ie a mobile terminal on a train may need to switch between A and ⁇ or B and C.
  • Step 103 Perform a corresponding communication policy according to the current mobile terminal attribute value of the mobile terminal and the regional status attribute value of the current logical macro cell.
  • mapping relationship between the mobile state attribute value, the area status attribute value, and the communication policy may be maintained in the network side database:
  • the corresponding communication policy is: assigning a wireless connection to the mobile terminal, and It provides high priority Quality of Service (QOS) service guarantees;
  • QOS Quality of Service
  • the corresponding communication policy is: refusing to allocate a wireless connection and providing QOS for the mobile terminal Service guarantee, or assign a wireless connection to the mobile terminal, and provide a low priority QOS service guarantee;
  • the corresponding communication strategy is: assigning a wireless connection to the mobile terminal, and providing a high priority QOS service guarantee.
  • the QOS service guarantee of the communication policy may be hierarchically divided according to requirements, and preferably, it may be divided into two levels, that is, the priority is high and the priority is low; further, the priority may be further high.
  • the QOS service guarantee, or the low-priority QOS service guarantee is further divided into levels, such as the first priority and the second priority. In actual applications, according to factors such as the network environment or user requirements, or based on pre-customized policies. Provide users with the corresponding level of QOS service guarantee.
  • the network side preferentially serves high-speed mobile users to provide a higher level of QOS service guarantee, so that high-speed mobile users have More radio resources can be used.
  • the network side provides normal QOS service guarantee for non-high-speed mobile users, that is, higher-level QOS service guarantee. If the high-speed mobile user is connected to the current logical macro area, the network side releases the wireless connection of the non-high-speed mobile user, or lowers its QOS service guarantee level, and preferentially serves the high-speed mobile user.
  • the present invention provides a communication system, as shown in FIG. 3, including: an attribute setting module 10 and a policy execution module 20, wherein
  • the attribute setting module 10 is configured to confirm a mobile state attribute value of the mobile terminal that accesses the current logical macro cell, and is further configured to confirm a current logical macro cell area status attribute value;
  • the policy execution module 20 is configured to execute a corresponding communication policy according to the attribute value of the mobile state and the attribute value of the regional state.
  • the system may further include a network side database 30 for storing the mobile state attribute value and the area status attribute value; and further configured to store the dynamic state attribute value, the attribute value of the area status, and the mapping relationship of the communication policy;
  • the attribute setting module 10 is further configured to move to the network side database 30.
  • the status attribute value and the area status attribute value are confirmed;
  • the policy execution module 20 is further configured to execute the communication policy according to the mapping relationship in the network side database 30 and the mobile state attribute value and the area status attribute value confirmed by the setting module 10.

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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 se rapporte à un procédé de communication dans une scène en mouvement à vitesse élevée. Ledit procédé comprend les étapes suivantes : un terminal mobile a accès à l'actuelle macrocellule logique et la valeur d'attribut d'état de mouvement du terminal mobile est affirmée (101); la valeur d'attribut d'état de région de l'actuelle macrocellule logique est affirmée (102); selon la valeur d'attribut de mouvement de l'actuel terminal mobile et la valeur d'attribut d'état de région de l'actuelle macrocellule logique, une politique de communication correspondante est exécutée (103). La présente invention se rapporte également à un système de communication dans une scène en mouvement à vitesse élevée et, sur la base du procédé et du système, on peut résoudre le problème selon lequel il y a moins de ressources sans fil disponibles pour des utilisateurs en mouvement à vitesse élevée et l'expérience utilisateur diminue, le problème étant dû au fait qu'il y a davantage d'utilisateurs en mouvement à vitesse élevée dans la macrocellule logique.
PCT/CN2010/077030 2009-09-21 2010-09-17 Procédé et système de communication dans une scène en mouvement à vitesse élevée WO2011032504A1 (fr)

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CN200910093425.0A CN102026326B (zh) 2009-09-21 2009-09-21 一种高速移动场景下的通信方法和系统

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CN102387552B (zh) * 2011-10-21 2017-07-21 南京中兴新软件有限责任公司 一种服务质量QoS的调整方法、系统、设备及装置
US10104612B2 (en) 2012-08-07 2018-10-16 Hfi Innovation Inc. UE preference indication and assistance information in mobile communication networks
CN104219730B (zh) * 2013-05-29 2018-03-09 中国电信股份有限公司 高速移动场景接入控制方法和装置
EP3013099A4 (fr) * 2013-06-19 2017-04-19 Sony Corporation Dispositif terminal, dispositif de commande de communication et procédé de commande de communication
CN107995685A (zh) * 2017-11-29 2018-05-04 努比亚技术有限公司 业务处理方法、网络服务器及计算机可读存储介质
CN115136654B (zh) * 2022-05-26 2024-03-01 北京小米移动软件有限公司 小区重定向方法及装置、存储介质

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